diff --git a/adb/Android.mk b/adb/Android.mk
index 7744d2b..1a25106 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -95,16 +95,6 @@
 # adbd device daemon
 # =========================================================
 
-BUILD_ADBD := true
-
-# build adbd for the Linux simulator build
-# so we can use it to test the adb USB gadget driver on x86
-#ifeq ($(HOST_OS),linux)
-#    BUILD_ADBD := true
-#endif
-
-
-ifeq ($(BUILD_ADBD),true)
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
@@ -127,10 +117,8 @@
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
 
-# TODO: This should probably be board specific, whether or not the kernel has
-# the gadget driver; rather than relying on the architecture type.
-ifeq ($(TARGET_ARCH),arm)
-LOCAL_CFLAGS += -DANDROID_GADGET=1
+ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
+LOCAL_CFLAGS += -DALLOW_ADBD_ROOT=1
 endif
 
 LOCAL_MODULE := adbd
@@ -142,8 +130,6 @@
 LOCAL_STATIC_LIBRARIES := libcutils libc
 include $(BUILD_EXECUTABLE)
 
-endif
-
 
 # adb host tool for device-as-host
 # =========================================================
diff --git a/adb/adb.c b/adb/adb.c
index e35c334..229f3ef 100644
--- a/adb/adb.c
+++ b/adb/adb.c
@@ -131,6 +131,58 @@
     }
 }
 
+#if !ADB_HOST
+/*
+ * Implements ADB tracing inside the emulator.
+ */
+
+#include <stdarg.h>
+
+/*
+ * Redefine open and write for qemu_pipe.h that contains inlined references
+ * to those routines. We will redifine them back after qemu_pipe.h inclusion.
+ */
+
+#undef open
+#undef write
+#define open    adb_open
+#define write   adb_write
+#include <hardware/qemu_pipe.h>
+#undef open
+#undef write
+#define open    ___xxx_open
+#define write   ___xxx_write
+
+/* A handle to adb-debug qemud service in the emulator. */
+int   adb_debug_qemu = -1;
+
+/* Initializes connection with the adb-debug qemud service in the emulator. */
+static int adb_qemu_trace_init(void)
+{
+    char con_name[32];
+
+    if (adb_debug_qemu >= 0) {
+        return 0;
+    }
+
+    /* adb debugging QEMUD service connection request. */
+    snprintf(con_name, sizeof(con_name), "qemud:adb-debug");
+    adb_debug_qemu = qemu_pipe_open(con_name);
+    return (adb_debug_qemu >= 0) ? 0 : -1;
+}
+
+void adb_qemu_trace(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    char msg[1024];
+
+    if (adb_debug_qemu >= 0) {
+        vsnprintf(msg, sizeof(msg), fmt, args);
+        adb_write(adb_debug_qemu, msg, strlen(msg));
+    }
+}
+#endif  /* !ADB_HOST */
 
 apacket *get_apacket(void)
 {
@@ -299,6 +351,13 @@
         return;
     }
 
+    if(!strcmp(type, "sideload")) {
+        D("setting connection_state to CS_SIDELOAD\n");
+        t->connection_state = CS_SIDELOAD;
+        update_transports();
+        return;
+    }
+
     t->connection_state = CS_HOST;
 }
 
@@ -835,12 +894,47 @@
   snprintf(target_str, target_size, "tcp:%d", server_port);
 }
 
+#if !ADB_HOST
+static int should_drop_privileges() {
+#ifndef ALLOW_ADBD_ROOT
+    return 1;
+#else /* ALLOW_ADBD_ROOT */
+    int secure = 0;
+    char value[PROPERTY_VALUE_MAX];
+
+   /* run adbd in secure mode if ro.secure is set and
+    ** we are not in the emulator
+    */
+    property_get("ro.kernel.qemu", value, "");
+    if (strcmp(value, "1") != 0) {
+        property_get("ro.secure", value, "1");
+        if (strcmp(value, "1") == 0) {
+            // don't run as root if ro.secure is set...
+            secure = 1;
+
+            // ... except we allow running as root in userdebug builds if the
+            // service.adb.root property has been set by the "adb root" command
+            property_get("ro.debuggable", value, "");
+            if (strcmp(value, "1") == 0) {
+                property_get("service.adb.root", value, "");
+                if (strcmp(value, "1") == 0) {
+                    secure = 0;
+                }
+            }
+        }
+    }
+    return secure;
+#endif /* ALLOW_ADBD_ROOT */
+}
+#endif /* !ADB_HOST */
+
 int adb_main(int is_daemon, int server_port)
 {
 #if !ADB_HOST
-    int secure = 0;
     int port;
     char value[PROPERTY_VALUE_MAX];
+
+    umask(000);
 #endif
 
     atexit(adb_cleanup);
@@ -866,31 +960,10 @@
         exit(1);
     }
 #else
-    /* run adbd in secure mode if ro.secure is set and
-    ** we are not in the emulator
-    */
-    property_get("ro.kernel.qemu", value, "");
-    if (strcmp(value, "1") != 0) {
-        property_get("ro.secure", value, "1");
-        if (strcmp(value, "1") == 0) {
-            // don't run as root if ro.secure is set...
-            secure = 1;
-
-            // ... except we allow running as root in userdebug builds if the
-            // service.adb.root property has been set by the "adb root" command
-            property_get("ro.debuggable", value, "");
-            if (strcmp(value, "1") == 0) {
-                property_get("service.adb.root", value, "");
-                if (strcmp(value, "1") == 0) {
-                    secure = 0;
-                }
-            }
-        }
-    }
 
     /* don't listen on a port (default 5037) if running in secure mode */
     /* don't run as root if we are running in secure mode */
-    if (secure) {
+    if (should_drop_privileges()) {
         struct __user_cap_header_struct header;
         struct __user_cap_data_struct cap;
 
@@ -905,13 +978,14 @@
         ** AID_INET to diagnose network issues (netcfg, ping)
         ** AID_GRAPHICS to access the frame buffer
         ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump)
+        ** AID_SDCARD_R to allow reading from the SD card
         ** AID_SDCARD_RW to allow writing to the SD card
         ** AID_MOUNT to allow unmounting the SD card before rebooting
         ** AID_NET_BW_STATS to read out qtaguid statistics
         */
         gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS,
-                           AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_RW, AID_MOUNT,
-                           AID_NET_BW_STATS };
+                           AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_R, AID_SDCARD_RW,
+                           AID_MOUNT, AID_NET_BW_STATS };
         if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
             exit(1);
         }
@@ -993,7 +1067,7 @@
 
     strncpy(hostbuf, host, sizeof(hostbuf) - 1);
     if (portstr) {
-        if (portstr - host >= sizeof(hostbuf)) {
+        if ((unsigned int)(portstr - host) >= sizeof(hostbuf)) {
             snprintf(buffer, buffer_size, "bad host name %s", host);
             return;
         }
@@ -1278,6 +1352,9 @@
     D("Handling commandline()\n");
     return adb_commandline(argc - 1, argv + 1);
 #else
+    /* If adbd runs inside the emulator this will enable adb tracing via
+     * adb-debug qemud service in the emulator. */
+    adb_qemu_trace_init();
     if((argc > 1) && (!strcmp(argv[1],"recovery"))) {
         adb_device_banner = "recovery";
         recovery_mode = 1;
diff --git a/adb/adb.h b/adb/adb.h
index ac31f11..03a7393 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -86,6 +86,11 @@
         */
     int    closing;
 
+        /* flag: quit adbd when both ends close the
+        ** local service socket
+        */
+    int    exit_on_close;
+
         /* the asocket we are connected to
         */
 
@@ -345,6 +350,21 @@
 
 #if ADB_TRACE
 
+#if !ADB_HOST
+/*
+ * When running inside the emulator, guest's adbd can connect to 'adb-debug'
+ * qemud service that can display adb trace messages (on condition that emulator
+ * has been started with '-debug adb' option).
+ */
+
+/* Delivers a trace message to the emulator via QEMU pipe. */
+void adb_qemu_trace(const char* fmt, ...);
+/* Macro to use to send ADB trace messages to the emulator. */
+#define DQ(...)    adb_qemu_trace(__VA_ARGS__)
+#else
+#define DQ(...) ((void)0)
+#endif  /* !ADB_HOST */
+
   extern int     adb_trace_mask;
   extern unsigned char    adb_trace_output_count;
   void    adb_trace_init(void);
@@ -434,6 +454,7 @@
 #define CS_HOST       3
 #define CS_RECOVERY   4
 #define CS_NOPERM     5 /* Insufficient permissions to communicate with the device */
+#define CS_SIDELOAD   6
 
 extern int HOST;
 extern int SHELL_EXIT_NOTIFY_FD;
diff --git a/adb/commandline.c b/adb/commandline.c
index ffc120f..47c9bec 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -120,10 +120,12 @@
         "                                   dev:<character device name>\n"
         "                                   jdwp:<process pid> (remote only)\n"
         "  adb jdwp                     - list PIDs of processes hosting a JDWP transport\n"
-        "  adb install [-l] [-r] [-s] <file> - push this package file to the device and install it\n"
+        "  adb install [-l] [-r] [-s] [--algo <algorithm name> --key <hex-encoded key> --iv <hex-encoded iv>] <file>\n"
+        "                               - push this package file to the device and install it\n"
         "                                 ('-l' means forward-lock the app)\n"
         "                                 ('-r' means reinstall the app, keeping its data)\n"
         "                                 ('-s' means install on SD card instead of internal storage)\n"
+        "                                 ('--algo', '--key', and '--iv' mean the file is encrypted already)\n"
         "  adb uninstall [-k] <package> - remove this app package from the device\n"
         "                                 ('-k' means keep the data and cache directories)\n"
         "  adb bugreport                - return all information from the device\n"
@@ -367,6 +369,83 @@
     }
 }
 
+int adb_download_buffer(const char *service, const void* data, int sz,
+                        unsigned progress)
+{
+    char buf[4096];
+    unsigned total;
+    int fd;
+    const unsigned char *ptr;
+
+    sprintf(buf,"%s:%d", service, sz);
+    fd = adb_connect(buf);
+    if(fd < 0) {
+        fprintf(stderr,"error: %s\n", adb_error());
+        return -1;
+    }
+
+    int opt = CHUNK_SIZE;
+    opt = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &opt, sizeof(opt));
+
+    total = sz;
+    ptr = data;
+
+    if(progress) {
+        char *x = strrchr(service, ':');
+        if(x) service = x + 1;
+    }
+
+    while(sz > 0) {
+        unsigned xfer = (sz > CHUNK_SIZE) ? CHUNK_SIZE : sz;
+        if(writex(fd, ptr, xfer)) {
+            adb_status(fd);
+            fprintf(stderr,"* failed to write data '%s' *\n", adb_error());
+            return -1;
+        }
+        sz -= xfer;
+        ptr += xfer;
+        if(progress) {
+            printf("sending: '%s' %4d%%    \r", service, (int)(100LL - ((100LL * sz) / (total))));
+            fflush(stdout);
+        }
+    }
+    if(progress) {
+        printf("\n");
+    }
+
+    if(readx(fd, buf, 4)){
+        fprintf(stderr,"* error reading response *\n");
+        adb_close(fd);
+        return -1;
+    }
+    if(memcmp(buf, "OKAY", 4)) {
+        buf[4] = 0;
+        fprintf(stderr,"* error response '%s' *\n", buf);
+        adb_close(fd);
+        return -1;
+    }
+
+    adb_close(fd);
+    return 0;
+}
+
+
+int adb_download(const char *service, const char *fn, unsigned progress)
+{
+    void *data;
+    unsigned sz;
+
+    data = load_file(fn, &sz);
+    if(data == 0) {
+        fprintf(stderr,"* cannot read '%s' *\n", service);
+        return -1;
+    }
+
+    int status = adb_download_buffer(service, data, sz, progress);
+    free(data);
+    return status;
+}
+
 static void status_window(transport_type ttype, const char* serial)
 {
     char command[4096];
@@ -561,6 +640,10 @@
 
     free(quoted_log_tags);
 
+    if (!strcmp(argv[0],"longcat")) {
+        strncat(buf, " -v long", sizeof(buf)-1);
+    }
+
     argc -= 1;
     argv += 1;
     while(argc-- > 0) {
@@ -644,6 +727,7 @@
         return -1;
     }
 
+    printf("Now unlock your device and confirm the backup operation.\n");
     copy_to_file(fd, outFd);
 
     adb_close(fd);
@@ -671,6 +755,7 @@
         return -1;
     }
 
+    printf("Now unlock your device and confirm the restore operation.\n");
     copy_to_file(tarFd, fd);
 
     adb_close(fd);
@@ -1057,6 +1142,15 @@
         return 0;
     }
 
+    if(!strcmp(argv[0], "sideload")) {
+        if(argc != 2) return usage();
+        if(adb_download("sideload", argv[1], 1)) {
+            return 1;
+        } else {
+            return 0;
+        }
+    }
+
     if(!strcmp(argv[0], "remount") || !strcmp(argv[0], "reboot")
             || !strcmp(argv[0], "reboot-bootloader")
             || !strcmp(argv[0], "tcpip") || !strcmp(argv[0], "usb")
@@ -1225,7 +1319,7 @@
         return 0;
     }
 
-    if(!strcmp(argv[0],"logcat") || !strcmp(argv[0],"lolcat")) {
+    if(!strcmp(argv[0],"logcat") || !strcmp(argv[0],"lolcat") || !strcmp(argv[0],"longcat")) {
         return logcat(ttype, serial, argc, argv);
     }
 
@@ -1440,6 +1534,7 @@
     int file_arg = -1;
     int err;
     int i;
+    int verify_apk = 1;
 
     for (i = 1; i < argc; i++) {
         if (*argv[i] != '-') {
@@ -1450,6 +1545,15 @@
             i++;
         } else if (!strcmp(argv[i], "-s")) {
             where = SD_DEST;
+        } else if (!strcmp(argv[i], "--algo")) {
+            verify_apk = 0;
+            i++;
+        } else if (!strcmp(argv[i], "--iv")) {
+            verify_apk = 0;
+            i++;
+        } else if (!strcmp(argv[i], "--key")) {
+            verify_apk = 0;
+            i++;
         }
     }
 
@@ -1481,9 +1585,9 @@
         }
     }
 
-    err = do_sync_push(apk_file, apk_dest, 1 /* verify APK */);
+    err = do_sync_push(apk_file, apk_dest, verify_apk);
     if (err) {
-        return err;
+        goto cleanup_apk;
     } else {
         argv[file_arg] = apk_dest; /* destination name, not source location */
     }
@@ -1499,11 +1603,11 @@
 
     pm_command(transport, serial, argc, argv);
 
+cleanup_apk:
     if (verification_file != NULL) {
         delete_file(transport, serial, verification_dest);
     }
 
-cleanup_apk:
     delete_file(transport, serial, apk_dest);
 
     return err;
diff --git a/adb/framebuffer_service.c b/adb/framebuffer_service.c
index 862dd91..20c08d2 100644
--- a/adb/framebuffer_service.c
+++ b/adb/framebuffer_service.c
@@ -19,6 +19,9 @@
 #include <unistd.h>
 #include <string.h>
 #include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/wait.h>
 
 #include "fdevent.h"
 #include "adb.h"
@@ -169,6 +172,8 @@
     if(writex(fd, buf, fbinfo.size % sizeof(buf))) goto done;
 
 done:
+    TEMP_FAILURE_RETRY(waitpid(pid, NULL, 0));
+
     close(fds[0]);
     close(fds[1]);
     close(fd);
diff --git a/adb/services.c b/adb/services.c
index 6940be8..495a083 100644
--- a/adb/services.c
+++ b/adb/services.c
@@ -125,12 +125,10 @@
             return;
         }
 
+        property_set("service.adb.root", "1");
         snprintf(buf, sizeof(buf), "restarting adbd as root\n");
         writex(fd, buf, strlen(buf));
         adb_close(fd);
-
-        // This will cause a property trigger in init.rc to restart us
-        property_set("service.adb.root", "1");
     }
 }
 
@@ -152,10 +150,6 @@
     snprintf(buf, sizeof(buf), "restarting in TCP mode port: %d\n", port);
     writex(fd, buf, strlen(buf));
     adb_close(fd);
-
-    // quit, and init will restart us in TCP mode
-    sleep(1);
-    exit(1);
 }
 
 void restart_usb_service(int fd, void *cookie)
@@ -166,10 +160,6 @@
     snprintf(buf, sizeof(buf), "restarting in USB mode\n");
     writex(fd, buf, strlen(buf));
     adb_close(fd);
-
-    // quit, and init will restart us in USB mode
-    sleep(1);
-    exit(1);
 }
 
 void reboot_service(int fd, void *arg)
@@ -369,7 +359,6 @@
                 break;
             }
          }
-        usleep(100000);  // poll every 0.1 sec
     }
     D("shell exited fd=%d of pid=%d err=%d\n", fd, pid, errno);
     if (SHELL_EXIT_NOTIFY_FD >=0) {
diff --git a/adb/sockets.c b/adb/sockets.c
index df223b1..cd31b23 100644
--- a/adb/sockets.c
+++ b/adb/sockets.c
@@ -199,6 +199,8 @@
 static void local_socket_destroy(asocket  *s)
 {
     apacket *p, *n;
+    int exit_on_close = s->exit_on_close;
+
     D("LS(%d): destroying fde.fd=%d\n", s->id, s->fde.fd);
 
         /* IMPORTANT: the remove closes the fd
@@ -214,6 +216,11 @@
     }
     remove_socket(s);
     free(s);
+
+    if (exit_on_close) {
+        D("local_socket_destroy: exiting\n");
+        exit(1);
+    }
 }
 
 
@@ -418,6 +425,16 @@
 
     s = create_local_socket(fd);
     D("LS(%d): bound to '%s' via %d\n", s->id, name, fd);
+
+#if !ADB_HOST
+    if ((!strncmp(name, "root:", 5) && getuid() != 0)
+        || !strncmp(name, "usb:", 4)
+        || !strncmp(name, "tcpip:", 6)) {
+        D("LS(%d): enabling exit_on_close\n", s->id);
+        s->exit_on_close = 1;
+    }
+#endif
+
     return s;
 }
 
diff --git a/adb/transport.c b/adb/transport.c
index 83a349a..2f7bd27 100644
--- a/adb/transport.c
+++ b/adb/transport.c
@@ -831,6 +831,7 @@
     case CS_DEVICE: return "device";
     case CS_HOST: return "host";
     case CS_RECOVERY: return "recovery";
+    case CS_SIDELOAD: return "sideload";
     case CS_NOPERM: return "no permissions";
     default: return "unknown";
     }
diff --git a/adb/transport_local.c b/adb/transport_local.c
index d985ee3..96a24ba 100644
--- a/adb/transport_local.c
+++ b/adb/transport_local.c
@@ -266,7 +266,7 @@
 
         /* Send the 'accept' request. */
         res = adb_write(fd, _accept_req, strlen(_accept_req));
-        if (res == strlen(_accept_req)) {
+        if ((size_t)res == strlen(_accept_req)) {
             /* Wait for the response. In the response we expect 'ok' on success,
              * or 'ko' on failure. */
             res = adb_read(fd, tmp, sizeof(tmp));
@@ -318,7 +318,7 @@
             /* Running inside the device: use TCP socket as the transport. */
             func = server_socket_thread;
         }
-#endif !ADB_HOST
+#endif // !ADB_HOST
     }
 
     D("transport: local %s init\n", HOST ? "client" : "server");
diff --git a/adb/usb_vendors.c b/adb/usb_vendors.c
index a1c3523..b988115 100644
--- a/adb/usb_vendors.c
+++ b/adb/usb_vendors.c
@@ -117,8 +117,6 @@
 #define VENDOR_ID_FUJITSU       0x04C5
 // Lumigon's USB Vendor ID
 #define VENDOR_ID_LUMIGON       0x25E3
-//Intel's USB Vendor ID
-#define VENDOR_ID_INTEL         0x8087
 // Quanta's USB Vendor ID
 #define VENDOR_ID_QUANTA        0x0408
 // INQ Mobile's USB Vendor ID
@@ -127,6 +125,8 @@
 #define VENDOR_ID_SONY          0x054C
 // Lab126's USB Vendor ID
 #define VENDOR_ID_LAB126        0x1949
+// Yulong Coolpad's USB Vendor ID
+#define VENDOR_ID_YULONG_COOLPAD 0x1EBF
 
 /** built-in vendor list */
 int builtInVendorIds[] = {
@@ -171,11 +171,11 @@
     VENDOR_ID_POSITIVO,
     VENDOR_ID_FUJITSU,
     VENDOR_ID_LUMIGON,
-    VENDOR_ID_INTEL,
     VENDOR_ID_QUANTA,
     VENDOR_ID_INQ_MOBILE,
     VENDOR_ID_SONY,
     VENDOR_ID_LAB126,
+    VENDOR_ID_YULONG_COOLPAD,
 };
 
 #define BUILT_IN_VENDOR_COUNT    (sizeof(builtInVendorIds)/sizeof(builtInVendorIds[0]))
diff --git a/adb/usb_windows.c b/adb/usb_windows.c
index b216999..251bf17 100644
--- a/adb/usb_windows.c
+++ b/adb/usb_windows.c
@@ -255,7 +255,7 @@
 }
 
 int usb_write(usb_handle* handle, const void* data, int len) {
-  unsigned long time_out = 500 + len * 8;
+  unsigned long time_out = 5000;
   unsigned long written = 0;
   int ret;
 
@@ -300,7 +300,7 @@
 }
 
 int usb_read(usb_handle *handle, void* data, int len) {
-  unsigned long time_out = 500 + len * 8;
+  unsigned long time_out = 0;
   unsigned long read = 0;
   int ret;
 
@@ -322,7 +322,7 @@
 
         if (len == 0)
           return 0;
-      } else if (saved_errno != ERROR_SEM_TIMEOUT) {
+      } else {
         // assume ERROR_INVALID_HANDLE indicates we are disconnected
         if (saved_errno == ERROR_INVALID_HANDLE)
           usb_kick(handle);
diff --git a/cpio/mkbootfs.c b/cpio/mkbootfs.c
index f672336..323a09d 100644
--- a/cpio/mkbootfs.c
+++ b/cpio/mkbootfs.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
+#include <ctype.h>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -34,12 +35,51 @@
     exit(1);
 }
 
+struct fs_config_entry {
+    char* name;
+    int uid, gid, mode;
+};
+
+static struct fs_config_entry* canned_config = NULL;
+
+/* Each line in the canned file should be a path plus three ints (uid,
+ * gid, mode). */
+#ifdef PATH_MAX
+#define CANNED_LINE_LENGTH  (PATH_MAX+100)
+#else
+#define CANNED_LINE_LENGTH  (1024)
+#endif
+
 static int verbose = 0;
 static int total_size = 0;
 
 static void fix_stat(const char *path, struct stat *s)
 {
-    fs_config(path, S_ISDIR(s->st_mode), &s->st_uid, &s->st_gid, &s->st_mode);
+    if (canned_config) {
+        // Use the list of file uid/gid/modes loaded from the file
+        // given with -f.
+
+        struct fs_config_entry* empty_path_config = NULL;
+        struct fs_config_entry* p;
+        for (p = canned_config; p->name; ++p) {
+            if (!p->name[0]) {
+                empty_path_config = p;
+            }
+            if (strcmp(p->name, path) == 0) {
+                s->st_uid = p->uid;
+                s->st_gid = p->gid;
+                s->st_mode = p->mode | (s->st_mode & ~07777);
+                return;
+            }
+        }
+        s->st_uid = empty_path_config->uid;
+        s->st_gid = empty_path_config->gid;
+        s->st_mode = empty_path_config->mode | (s->st_mode & ~07777);
+    } else {
+        // Use the compiled-in fs_config() function.
+
+        fs_config(path, S_ISDIR(s->st_mode), &s->st_uid, &s->st_gid, &s->st_mode);
+    }
 }
 
 static void _eject(struct stat *s, char *out, int olen, char *data, unsigned datasize)
@@ -79,7 +119,7 @@
 
     total_size += 6 + 8*13 + olen + 1;
 
-    if(strlen(out) != olen) die("ACK!");
+    if(strlen(out) != (unsigned int)olen) die("ACK!");
 
     while(total_size & 3) {
         total_size++;
@@ -235,11 +275,61 @@
     _archive_dir(in, out, strlen(in), strlen(out));
 }
 
+static void read_canned_config(char* filename)
+{
+    int allocated = 8;
+    int used = 0;
+
+    canned_config =
+        (struct fs_config_entry*)malloc(allocated * sizeof(struct fs_config_entry));
+
+    char line[CANNED_LINE_LENGTH];
+    FILE* f = fopen(filename, "r");
+    if (f == NULL) die("failed to open canned file");
+
+    while (fgets(line, CANNED_LINE_LENGTH, f) != NULL) {
+        if (!line[0]) break;
+        if (used >= allocated) {
+            allocated *= 2;
+            canned_config = (struct fs_config_entry*)realloc(
+                canned_config, allocated * sizeof(struct fs_config_entry));
+        }
+
+        struct fs_config_entry* cc = canned_config + used;
+
+        if (isspace(line[0])) {
+            cc->name = strdup("");
+            cc->uid = atoi(strtok(line, " \n"));
+        } else {
+            cc->name = strdup(strtok(line, " \n"));
+            cc->uid = atoi(strtok(NULL, " \n"));
+        }
+        cc->gid = atoi(strtok(NULL, " \n"));
+        cc->mode = strtol(strtok(NULL, " \n"), NULL, 8);
+        ++used;
+    }
+    if (used >= allocated) {
+        ++allocated;
+        canned_config = (struct fs_config_entry*)realloc(
+            canned_config, allocated * sizeof(struct fs_config_entry));
+    }
+    canned_config[used].name = NULL;
+
+    fclose(f);
+}
+
+
 int main(int argc, char *argv[])
 {
     argc--;
     argv++;
 
+    if (argc > 1 && strcmp(argv[0], "-f") == 0) {
+        read_canned_config(argv[1]);
+        argc -= 2;
+        argv += 2;
+    }
+
     if(argc == 0) die("no directories to process?!");
 
     while(argc-- > 0){
diff --git a/debuggerd/Android.mk b/debuggerd/Android.mk
index 6cfe79b..fe46706 100644
--- a/debuggerd/Android.mk
+++ b/debuggerd/Android.mk
@@ -5,12 +5,15 @@
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= debuggerd.c utility.c getevent.c $(TARGET_ARCH)/machine.c $(TARGET_ARCH)/unwind.c symbol_table.c
-ifeq ($(TARGET_ARCH),arm)
-LOCAL_SRC_FILES += $(TARGET_ARCH)/pr-support.c
-endif
+LOCAL_SRC_FILES:= \
+	backtrace.c \
+	debuggerd.c \
+	getevent.c \
+	tombstone.c \
+	utility.c \
+	$(TARGET_ARCH)/machine.c
 
-LOCAL_CFLAGS := -Wall
+LOCAL_CFLAGS := -Wall -Wno-unused-parameter -std=gnu99
 LOCAL_MODULE := debuggerd
 
 ifeq ($(ARCH_ARM_HAVE_VFP),true)
@@ -20,7 +23,13 @@
 LOCAL_CFLAGS += -DWITH_VFP_D32
 endif # ARCH_ARM_HAVE_VFP_D32
 
-LOCAL_STATIC_LIBRARIES := libcutils libc
+LOCAL_SHARED_LIBRARIES := libcutils libc libcorkscrew
+
+ifeq ($(HAVE_SELINUX),true)
+LOCAL_SHARED_LIBRARIES += libselinux
+LOCAL_C_INCLUDES += external/libselinux/include
+LOCAL_CFLAGS += -DHAVE_SELINUX
+endif
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/debuggerd/arm/machine.c b/debuggerd/arm/machine.c
index d5efb79..1c2e13f 100644
--- a/debuggerd/arm/machine.c
+++ b/debuggerd/arm/machine.c
@@ -15,29 +15,24 @@
 ** limitations under the License.
 */
 
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
 #include <stdio.h>
 #include <errno.h>
-#include <signal.h>
-#include <pthread.h>
-#include <fcntl.h>
 #include <sys/types.h>
-#include <dirent.h>
-
 #include <sys/ptrace.h>
-#include <sys/wait.h>
-#include <sys/exec_elf.h>
-#include <sys/stat.h>
 
-#include <cutils/sockets.h>
-#include <cutils/properties.h>
+#include <corkscrew/ptrace.h>
 
-#include <linux/input.h>
 #include <linux/user.h>
 
-#include "utility.h"
+#include "../utility.h"
+#include "../machine.h"
 
 /* enable to dump memory pointed to by every register */
-#define DUMP_MEM_FOR_ALL_REGS 0
+#define DUMP_MEMORY_FOR_ALL_REGISTERS 1
 
 #ifdef WITH_VFP
 #ifdef WITH_VFP_D32
@@ -47,89 +42,7 @@
 #endif
 #endif
 
-/* Main entry point to get the backtrace from the crashing process */
-extern int unwind_backtrace_with_ptrace(int tfd, pid_t pid, mapinfo *map,
-                                        unsigned int sp_list[],
-                                        int *frame0_pc_sane,
-                                        bool at_fault);
-
-/*
- * If this isn't clearly a null pointer dereference, dump the
- * /proc/maps entries near the fault address.
- *
- * This only makes sense to do on the thread that crashed.
- */
-static void show_nearby_maps(int tfd, int pid, mapinfo *map)
-{
-    siginfo_t si;
-
-    memset(&si, 0, sizeof(si));
-    if (ptrace(PTRACE_GETSIGINFO, pid, 0, &si)) {
-        _LOG(tfd, false, "cannot get siginfo for %d: %s\n",
-            pid, strerror(errno));
-        return;
-    }
-    if (!signal_has_address(si.si_signo))
-        return;
-
-    uintptr_t addr = (uintptr_t) si.si_addr;
-    addr &= ~0xfff;     /* round to 4K page boundary */
-    if (addr == 0)      /* null-pointer deref */
-        return;
-
-    _LOG(tfd, false, "\nmemory map around addr %08x:\n", si.si_addr);
-
-    /*
-     * Search for a match, or for a hole where the match would be.  The list
-     * is backward from the file content, so it starts at high addresses.
-     */
-    bool found = false;
-    mapinfo *next = NULL;
-    mapinfo *prev = NULL;
-    while (map != NULL) {
-        if (addr >= map->start && addr < map->end) {
-            found = true;
-            next = map->next;
-            break;
-        } else if (addr >= map->end) {
-            /* map would be between "prev" and this entry */
-            next = map;
-            map = NULL;
-            break;
-        }
-
-        prev = map;
-        map = map->next;
-    }
-
-    /*
-     * Show "next" then "match" then "prev" so that the addresses appear in
-     * ascending order (like /proc/pid/maps).
-     */
-    if (next != NULL) {
-        _LOG(tfd, false, "%08x-%08x %s\n", next->start, next->end, next->name);
-    } else {
-        _LOG(tfd, false, "(no map below)\n");
-    }
-    if (map != NULL) {
-        _LOG(tfd, false, "%08x-%08x %s\n", map->start, map->end, map->name);
-    } else {
-        _LOG(tfd, false, "(no map for address)\n");
-    }
-    if (prev != NULL) {
-        _LOG(tfd, false, "%08x-%08x %s\n", prev->start, prev->end, prev->name);
-    } else {
-        _LOG(tfd, false, "(no map above)\n");
-    }
-}
-
-/*
- * Dumps a few bytes of memory, starting a bit before and ending a bit
- * after the specified address.
- */
-static void dump_memory(int tfd, int pid, uintptr_t addr,
-    bool only_in_tombstone)
-{
+static void dump_memory(log_t* log, pid_t tid, uintptr_t addr, bool at_fault) {
     char code_buffer[64];       /* actual 8+1+((8+1)*4) + 1 == 45 */
     char ascii_buffer[32];      /* actual 16 + 1 == 17 */
     uintptr_t p, end;
@@ -165,7 +78,7 @@
              * just complicates parsing and clarifies nothing for the
              * enlightened reader.
              */
-            long data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
+            long data = ptrace(PTRACE_PEEKTEXT, tid, (void*)p, NULL);
             sprintf(code_buffer + strlen(code_buffer), "%08lx ", data);
 
             int j;
@@ -185,34 +98,27 @@
             p += 4;
         }
         *asc_out = '\0';
-        _LOG(tfd, only_in_tombstone, "%s %s\n", code_buffer, ascii_buffer);
+        _LOG(log, !at_fault, "    %s %s\n", code_buffer, ascii_buffer);
     }
-
 }
 
-void dump_stack_and_code(int tfd, int pid, mapinfo *map,
-                         int unwind_depth, unsigned int sp_list[],
-                         bool at_fault)
-{
-    struct pt_regs r;
-    int sp_depth;
-    bool only_in_tombstone = !at_fault;
+/*
+ * If configured to do so, dump memory around *all* registers
+ * for the crashing thread.
+ */
+void dump_memory_and_code(const ptrace_context_t* context __attribute((unused)),
+        log_t* log, pid_t tid, bool at_fault) {
+    struct pt_regs regs;
+    if(ptrace(PTRACE_GETREGS, tid, 0, &regs)) {
+        return;
+    }
 
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) return;
+    if (at_fault && DUMP_MEMORY_FOR_ALL_REGISTERS) {
+        static const char REG_NAMES[] = "r0r1r2r3r4r5r6r7r8r9slfpipsp";
 
-    if (DUMP_MEM_FOR_ALL_REGS && at_fault) {
-        /*
-         * If configured to do so, dump memory around *all* registers
-         * for the crashing thread.
-         *
-         * TODO: remove duplicates.
-         */
-        static const char REG_NAMES[] = "R0R1R2R3R4R5R6R7R8R9SLFPIPSPLRPC";
-
-        int reg;
-        for (reg = 0; reg < 16; reg++) {
+        for (int reg = 0; reg < 14; reg++) {
             /* this may not be a valid way to access, but it'll do for now */
-            uintptr_t addr = r.uregs[reg];
+            uintptr_t addr = regs.uregs[reg];
 
             /*
              * Don't bother if it looks like a small int or ~= null, or if
@@ -222,152 +128,54 @@
                 continue;
             }
 
-            _LOG(tfd, only_in_tombstone, "\nmem near %.2s:\n",
-                &REG_NAMES[reg*2]);
-            dump_memory(tfd, pid, addr, false);
-        }
-    } else {
-        unsigned int pc, lr;
-        pc = r.ARM_pc;
-        lr = r.ARM_lr;
-
-        _LOG(tfd, only_in_tombstone, "\ncode around pc:\n");
-        dump_memory(tfd, pid, (uintptr_t) pc, only_in_tombstone);
-
-        if (lr != pc) {
-            _LOG(tfd, only_in_tombstone, "\ncode around lr:\n");
-            dump_memory(tfd, pid, (uintptr_t) lr, only_in_tombstone);
+            _LOG(log, false, "\nmemory near %.2s:\n", &REG_NAMES[reg * 2]);
+            dump_memory(log, tid, addr, at_fault);
         }
     }
 
-    if (at_fault) {
-        show_nearby_maps(tfd, pid, map);
-    }
+    _LOG(log, !at_fault, "\ncode around pc:\n");
+    dump_memory(log, tid, (uintptr_t)regs.ARM_pc, at_fault);
 
-    unsigned int p, end;
-    unsigned int sp = r.ARM_sp;
-
-    p = sp - 64;
-    if (p > sp)
-        p = 0;
-    p &= ~3;
-    if (unwind_depth != 0) {
-        if (unwind_depth < STACK_CONTENT_DEPTH) {
-            end = sp_list[unwind_depth-1];
-        }
-        else {
-            end = sp_list[STACK_CONTENT_DEPTH-1];
-        }
-    }
-    else {
-        end = p + 256;
-        /* 'end - p' has to be multiples of 4 */
-        if (end < p)
-            end = ~7;
-    }
-
-    _LOG(tfd, only_in_tombstone, "\nstack:\n");
-
-    /* If the crash is due to PC == 0, there will be two frames that
-     * have identical SP value.
-     */
-    if (sp_list[0] == sp_list[1]) {
-        sp_depth = 1;
-    }
-    else {
-        sp_depth = 0;
-    }
-
-    while (p <= end) {
-         char *prompt;
-         char level[16];
-         long data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
-         if (p == sp_list[sp_depth]) {
-             sprintf(level, "#%02d", sp_depth++);
-             prompt = level;
-         }
-         else {
-             prompt = "   ";
-         }
-
-         /* Print the stack content in the log for the first 3 frames. For the
-          * rest only print them in the tombstone file.
-          */
-         _LOG(tfd, (sp_depth > 2) || only_in_tombstone,
-              "%s %08x  %08x  %s\n", prompt, p, data,
-              map_to_name(map, data, ""));
-         p += 4;
-    }
-    /* print another 64-byte of stack data after the last frame */
-
-    end = p+64;
-    /* 'end - p' has to be multiples of 4 */
-    if (end < p)
-        end = ~7;
-
-    while (p <= end) {
-         long data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
-         _LOG(tfd, (sp_depth > 2) || only_in_tombstone,
-              "    %08x  %08x  %s\n", p, data,
-              map_to_name(map, data, ""));
-         p += 4;
+    if (regs.ARM_pc != regs.ARM_lr) {
+        _LOG(log, !at_fault, "\ncode around lr:\n");
+        dump_memory(log, tid, (uintptr_t)regs.ARM_lr, at_fault);
     }
 }
 
-void dump_pc_and_lr(int tfd, int pid, mapinfo *map, int unwound_level,
-                    bool at_fault)
-{
-    struct pt_regs r;
-
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
-        _LOG(tfd, !at_fault, "tid %d not responding!\n", pid);
-        return;
-    }
-
-    if (unwound_level == 0) {
-        _LOG(tfd, !at_fault, "         #%02d  pc %08x  %s\n", 0, r.ARM_pc,
-             map_to_name(map, r.ARM_pc, "<unknown>"));
-    }
-    _LOG(tfd, !at_fault, "         #%02d  lr %08x  %s\n", 1, r.ARM_lr,
-            map_to_name(map, r.ARM_lr, "<unknown>"));
-}
-
-void dump_registers(int tfd, int pid, bool at_fault)
+void dump_registers(const ptrace_context_t* context __attribute((unused)),
+        log_t* log, pid_t tid, bool at_fault)
 {
     struct pt_regs r;
     bool only_in_tombstone = !at_fault;
 
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
-        _LOG(tfd, only_in_tombstone,
-             "cannot get registers: %s\n", strerror(errno));
+    if(ptrace(PTRACE_GETREGS, tid, 0, &r)) {
+        _LOG(log, only_in_tombstone, "cannot get registers: %s\n", strerror(errno));
         return;
     }
 
-    _LOG(tfd, only_in_tombstone, " r0 %08x  r1 %08x  r2 %08x  r3 %08x\n",
-         r.ARM_r0, r.ARM_r1, r.ARM_r2, r.ARM_r3);
-    _LOG(tfd, only_in_tombstone, " r4 %08x  r5 %08x  r6 %08x  r7 %08x\n",
-         r.ARM_r4, r.ARM_r5, r.ARM_r6, r.ARM_r7);
-    _LOG(tfd, only_in_tombstone, " r8 %08x  r9 %08x  10 %08x  fp %08x\n",
-         r.ARM_r8, r.ARM_r9, r.ARM_r10, r.ARM_fp);
-    _LOG(tfd, only_in_tombstone,
-         " ip %08x  sp %08x  lr %08x  pc %08x  cpsr %08x\n",
-         r.ARM_ip, r.ARM_sp, r.ARM_lr, r.ARM_pc, r.ARM_cpsr);
+    _LOG(log, only_in_tombstone, "    r0 %08x  r1 %08x  r2 %08x  r3 %08x\n",
+            (uint32_t)r.ARM_r0, (uint32_t)r.ARM_r1, (uint32_t)r.ARM_r2, (uint32_t)r.ARM_r3);
+    _LOG(log, only_in_tombstone, "    r4 %08x  r5 %08x  r6 %08x  r7 %08x\n",
+            (uint32_t)r.ARM_r4, (uint32_t)r.ARM_r5, (uint32_t)r.ARM_r6, (uint32_t)r.ARM_r7);
+    _LOG(log, only_in_tombstone, "    r8 %08x  r9 %08x  sl %08x  fp %08x\n",
+            (uint32_t)r.ARM_r8, (uint32_t)r.ARM_r9, (uint32_t)r.ARM_r10, (uint32_t)r.ARM_fp);
+    _LOG(log, only_in_tombstone, "    ip %08x  sp %08x  lr %08x  pc %08x  cpsr %08x\n",
+            (uint32_t)r.ARM_ip, (uint32_t)r.ARM_sp, (uint32_t)r.ARM_lr,
+            (uint32_t)r.ARM_pc, (uint32_t)r.ARM_cpsr);
 
 #ifdef WITH_VFP
     struct user_vfp vfp_regs;
     int i;
 
-    if(ptrace(PTRACE_GETVFPREGS, pid, 0, &vfp_regs)) {
-        _LOG(tfd, only_in_tombstone,
-             "cannot get registers: %s\n", strerror(errno));
+    if(ptrace(PTRACE_GETVFPREGS, tid, 0, &vfp_regs)) {
+        _LOG(log, only_in_tombstone, "cannot get registers: %s\n", strerror(errno));
         return;
     }
 
     for (i = 0; i < NUM_VFP_REGS; i += 2) {
-        _LOG(tfd, only_in_tombstone,
-             " d%-2d %016llx  d%-2d %016llx\n",
-              i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]);
+        _LOG(log, only_in_tombstone, "    d%-2d %016llx  d%-2d %016llx\n",
+                i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]);
     }
-    _LOG(tfd, only_in_tombstone, " scr %08lx\n\n", vfp_regs.fpscr);
+    _LOG(log, only_in_tombstone, "    scr %08lx\n", vfp_regs.fpscr);
 #endif
 }
diff --git a/debuggerd/arm/pr-support.c b/debuggerd/arm/pr-support.c
deleted file mode 100644
index 358d9b7..0000000
--- a/debuggerd/arm/pr-support.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/* ARM EABI compliant unwinding routines
-   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
-   Contributed by Paul Brook
- 
-   This file is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   In addition to the permissions in the GNU General Public License, the
-   Free Software Foundation gives you unlimited permission to link the
-   compiled version of this file into combinations with other programs,
-   and to distribute those combinations without any restriction coming
-   from the use of this file.  (The General Public License restrictions
-   do apply in other respects; for example, they cover modification of
-   the file, and distribution when not linked into a combine
-   executable.)
-
-   This file is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.  If not, write to
-   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
-
-/****************************************************************************
- * The functions here are derived from gcc/config/arm/pr-support.c from the 
- * 4.3.x release. The main changes here involve the use of ptrace to retrieve
- * memory/processor states from a remote process.
- ****************************************************************************/
-
-#include <sys/types.h>
-#include <unwind.h>
-
-#include "utility.h"
-
-/* We add a prototype for abort here to avoid creating a dependency on
-   target headers.  */
-extern void abort (void);
-
-/* Derived from _Unwind_VRS_Pop to use ptrace */
-extern _Unwind_VRS_Result 
-unwind_VRS_Pop_with_ptrace (_Unwind_Context *context, 
-                            _Unwind_VRS_RegClass regclass, 
-                            _uw discriminator, 
-                            _Unwind_VRS_DataRepresentation representation, 
-                            pid_t pid);
-
-typedef struct _ZSt9type_info type_info; /* This names C++ type_info type */
-
-/* Misc constants.  */
-#define R_IP    12
-#define R_SP    13
-#define R_LR    14
-#define R_PC    15
-
-#define uint32_highbit (((_uw) 1) << 31)
-
-void __attribute__((weak)) __cxa_call_unexpected(_Unwind_Control_Block *ucbp);
-
-/* Unwind descriptors.  */
-
-typedef struct
-{
-  _uw16 length;
-  _uw16 offset;
-} EHT16;
-
-typedef struct
-{
-  _uw length;
-  _uw offset;
-} EHT32;
-
-/* Personality routine helper functions.  */
-
-#define CODE_FINISH (0xb0)
-
-/* Derived from next_unwind_byte to use ptrace */
-/* Return the next byte of unwinding information, or CODE_FINISH if there is
-   no data remaining.  */
-static inline _uw8
-next_unwind_byte_with_ptrace (__gnu_unwind_state * uws, pid_t pid)
-{
-  _uw8 b;
-
-  if (uws->bytes_left == 0)
-    {
-      /* Load another word */
-      if (uws->words_left == 0)
-	return CODE_FINISH; /* Nothing left.  */
-      uws->words_left--;
-      uws->data = get_remote_word(pid, uws->next);
-      uws->next++;
-      uws->bytes_left = 3;
-    }
-  else
-    uws->bytes_left--;
-
-  /* Extract the most significant byte.  */
-  b = (uws->data >> 24) & 0xff;
-  uws->data <<= 8;
-  return b;
-}
-
-/* Execute the unwinding instructions described by UWS.  */
-_Unwind_Reason_Code
-unwind_execute_with_ptrace(_Unwind_Context * context, __gnu_unwind_state * uws,
-                           pid_t pid)
-{
-  _uw op;
-  int set_pc;
-  _uw reg;
-
-  set_pc = 0;
-  for (;;)
-    {
-      op = next_unwind_byte_with_ptrace (uws, pid);
-      if (op == CODE_FINISH)
-	{
-	  /* If we haven't already set pc then copy it from lr.  */
-	  if (!set_pc)
-	    {
-	      _Unwind_VRS_Get (context, _UVRSC_CORE, R_LR, _UVRSD_UINT32,
-			       &reg);
-	      _Unwind_VRS_Set (context, _UVRSC_CORE, R_PC, _UVRSD_UINT32,
-			       &reg);
-	      set_pc = 1;
-	    }
-	  /* Drop out of the loop.  */
-	  break;
-	}
-      if ((op & 0x80) == 0)
-	{
-	  /* vsp = vsp +- (imm6 << 2 + 4).  */
-	  _uw offset;
-
-	  offset = ((op & 0x3f) << 2) + 4;
-	  _Unwind_VRS_Get (context, _UVRSC_CORE, R_SP, _UVRSD_UINT32, &reg);
-	  if (op & 0x40)
-	    reg -= offset;
-	  else
-	    reg += offset;
-	  _Unwind_VRS_Set (context, _UVRSC_CORE, R_SP, _UVRSD_UINT32, &reg);
-	  continue;
-	}
-      
-      if ((op & 0xf0) == 0x80)
-	{
-	  op = (op << 8) | next_unwind_byte_with_ptrace (uws, pid);
-	  if (op == 0x8000)
-	    {
-	      /* Refuse to unwind.  */
-	      return _URC_FAILURE;
-	    }
-	  /* Pop r4-r15 under mask.  */
-	  op = (op << 4) & 0xfff0;
-	  if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_CORE, op, _UVRSD_UINT32, 
-                                      pid)
-	      != _UVRSR_OK)
-	    return _URC_FAILURE;
-	  if (op & (1 << R_PC))
-	    set_pc = 1;
-	  continue;
-	}
-      if ((op & 0xf0) == 0x90)
-	{
-	  op &= 0xf;
-	  if (op == 13 || op == 15)
-	    /* Reserved.  */
-	    return _URC_FAILURE;
-	  /* vsp = r[nnnn].  */
-	  _Unwind_VRS_Get (context, _UVRSC_CORE, op, _UVRSD_UINT32, &reg);
-	  _Unwind_VRS_Set (context, _UVRSC_CORE, R_SP, _UVRSD_UINT32, &reg);
-	  continue;
-	}
-      if ((op & 0xf0) == 0xa0)
-	{
-	  /* Pop r4-r[4+nnn], [lr].  */
-	  _uw mask;
-	  
-	  mask = (0xff0 >> (7 - (op & 7))) & 0xff0;
-	  if (op & 8)
-	    mask |= (1 << R_LR);
-	  if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_CORE, mask, _UVRSD_UINT32,
-                                      pid)
-	      != _UVRSR_OK)
-	    return _URC_FAILURE;
-	  continue;
-	}
-      if ((op & 0xf0) == 0xb0)
-	{
-	  /* op == 0xb0 already handled.  */
-	  if (op == 0xb1)
-	    {
-	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      if (op == 0 || ((op & 0xf0) != 0))
-		/* Spare.  */
-		return _URC_FAILURE;
-	      /* Pop r0-r4 under mask.  */
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_CORE, op, 
-                                          _UVRSD_UINT32, pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  if (op == 0xb2)
-	    {
-	      /* vsp = vsp + 0x204 + (uleb128 << 2).  */
-	      int shift;
-
-	      _Unwind_VRS_Get (context, _UVRSC_CORE, R_SP, _UVRSD_UINT32,
-			       &reg);
-	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      shift = 2;
-	      while (op & 0x80)
-		{
-		  reg += ((op & 0x7f) << shift);
-		  shift += 7;
-		  op = next_unwind_byte_with_ptrace (uws, pid);
-		}
-	      reg += ((op & 0x7f) << shift) + 0x204;
-	      _Unwind_VRS_Set (context, _UVRSC_CORE, R_SP, _UVRSD_UINT32,
-			       &reg);
-	      continue;
-	    }
-	  if (op == 0xb3)
-	    {
-	      /* Pop VFP registers with fldmx.  */
-	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      op = ((op & 0xf0) << 12) | ((op & 0xf) + 1);
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_VFP, op, _UVRSD_VFPX, 
-                                          pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  if ((op & 0xfc) == 0xb4)
-	    {
-	      /* Pop FPA E[4]-E[4+nn].  */
-	      op = 0x40000 | ((op & 3) + 1);
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_FPA, op, _UVRSD_FPAX, 
-                                          pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  /* op & 0xf8 == 0xb8.  */
-	  /* Pop VFP D[8]-D[8+nnn] with fldmx.  */
-	  op = 0x80000 | ((op & 7) + 1);
-	  if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_VFP, op, _UVRSD_VFPX, pid)
-	      != _UVRSR_OK)
-	    return _URC_FAILURE;
-	  continue;
-	}
-      if ((op & 0xf0) == 0xc0)
-	{
-	  if (op == 0xc6)
-	    {
-	      /* Pop iWMMXt D registers.  */
-	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      op = ((op & 0xf0) << 12) | ((op & 0xf) + 1);
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_WMMXD, op, 
-                                          _UVRSD_UINT64, pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  if (op == 0xc7)
-	    {
-	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      if (op == 0 || (op & 0xf0) != 0)
-		/* Spare.  */
-		return _URC_FAILURE;
-	      /* Pop iWMMXt wCGR{3,2,1,0} under mask.  */
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_WMMXC, op, 
-                                          _UVRSD_UINT32, pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  if ((op & 0xf8) == 0xc0)
-	    {
-	      /* Pop iWMMXt wR[10]-wR[10+nnn].  */
-	      op = 0xa0000 | ((op & 0xf) + 1);
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_WMMXD, op, 
-                                          _UVRSD_UINT64, pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  if (op == 0xc8)
-	    {
-#ifndef __VFP_FP__
- 	      /* Pop FPA registers.  */
- 	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      op = ((op & 0xf0) << 12) | ((op & 0xf) + 1);
- 	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_FPA, op, _UVRSD_FPAX,
-                                          pid)
- 		  != _UVRSR_OK)
- 		return _URC_FAILURE;
- 	      continue;
-#else
-              /* Pop VFPv3 registers D[16+ssss]-D[16+ssss+cccc] with vldm.  */
-              op = next_unwind_byte_with_ptrace (uws, pid);
-              op = (((op & 0xf0) + 16) << 12) | ((op & 0xf) + 1);
-              if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_VFP, op, 
-                                              _UVRSD_DOUBLE, pid)
-                  != _UVRSR_OK)
-                return _URC_FAILURE;
-              continue;
-#endif
-	    }
-	  if (op == 0xc9)
-	    {
-	      /* Pop VFP registers with fldmd.  */
-	      op = next_unwind_byte_with_ptrace (uws, pid);
-	      op = ((op & 0xf0) << 12) | ((op & 0xf) + 1);
-	      if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_VFP, op, 
-                                          _UVRSD_DOUBLE, pid)
-		  != _UVRSR_OK)
-		return _URC_FAILURE;
-	      continue;
-	    }
-	  /* Spare.  */
-	  return _URC_FAILURE;
-	}
-      if ((op & 0xf8) == 0xd0)
-	{
-	  /* Pop VFP D[8]-D[8+nnn] with fldmd.  */
-	  op = 0x80000 | ((op & 7) + 1);
-	  if (unwind_VRS_Pop_with_ptrace (context, _UVRSC_VFP, op, _UVRSD_DOUBLE, 
-                                      pid)
-	      != _UVRSR_OK)
-	    return _URC_FAILURE;
-	  continue;
-	}
-      /* Spare.  */
-      return _URC_FAILURE;
-    }
-  return _URC_OK;
-}
diff --git a/debuggerd/arm/unwind.c b/debuggerd/arm/unwind.c
deleted file mode 100644
index d9600b7..0000000
--- a/debuggerd/arm/unwind.c
+++ /dev/null
@@ -1,667 +0,0 @@
-/* ARM EABI compliant unwinding routines.
-   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
-   Contributed by Paul Brook
-
-   This file is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   In addition to the permissions in the GNU General Public License, the
-   Free Software Foundation gives you unlimited permission to link the
-   compiled version of this file into combinations with other programs,
-   and to distribute those combinations without any restriction coming
-   from the use of this file.  (The General Public License restrictions
-   do apply in other respects; for example, they cover modification of
-   the file, and distribution when not linked into a combine
-   executable.)
-
-   This file is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.  If not, write to
-   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
-
-/****************************************************************************
- * The functions here are derived from gcc/config/arm/unwind-arm.c from the 
- * 4.3.x release. The main changes here involve the use of ptrace to retrieve
- * memory/processor states from a remote process.
- ****************************************************************************/
-
-#include <cutils/logd.h>
-#include <sys/ptrace.h>
-#include <unwind.h>
-#include "utility.h"
-
-#include "symbol_table.h"
-
-typedef struct _ZSt9type_info type_info; /* This names C++ type_info type */
-
-void __attribute__((weak)) __cxa_call_unexpected(_Unwind_Control_Block *ucbp);
-bool __attribute__((weak)) __cxa_begin_cleanup(_Unwind_Control_Block *ucbp);
-bool __attribute__((weak)) __cxa_type_match(_Unwind_Control_Block *ucbp,
-                        const type_info *rttip,
-                        bool is_reference,
-                        void **matched_object);
-
-/* Misc constants.  */
-#define R_IP	12
-#define R_SP	13
-#define R_LR	14
-#define R_PC	15
-
-#define EXIDX_CANTUNWIND 1
-#define uint32_highbit (((_uw) 1) << 31)
-
-#define UCB_FORCED_STOP_FN(ucbp) ((ucbp)->unwinder_cache.reserved1)
-#define UCB_PR_ADDR(ucbp) ((ucbp)->unwinder_cache.reserved2)
-#define UCB_SAVED_CALLSITE_ADDR(ucbp) ((ucbp)->unwinder_cache.reserved3)
-#define UCB_FORCED_STOP_ARG(ucbp) ((ucbp)->unwinder_cache.reserved4)
-
-struct core_regs
-{
-  _uw r[16];
-};
-
-/* We use normal integer types here to avoid the compiler generating
-   coprocessor instructions.  */
-struct vfp_regs
-{
-  _uw64 d[16];
-  _uw pad;
-};
-
-struct vfpv3_regs
-{
-  /* Always populated via VSTM, so no need for the "pad" field from
-     vfp_regs (which is used to store the format word for FSTMX).  */
-  _uw64 d[16];
-};
-
-struct fpa_reg
-{
-  _uw w[3];
-};
-
-struct fpa_regs
-{
-  struct fpa_reg f[8];
-};
-
-struct wmmxd_regs
-{
-  _uw64 wd[16];
-};
-
-struct wmmxc_regs
-{
-  _uw wc[4];
-};
-
-/* Unwind descriptors.  */
-
-typedef struct
-{
-  _uw16 length;
-  _uw16 offset;
-} EHT16;
-
-typedef struct
-{
-  _uw length;
-  _uw offset;
-} EHT32;
-
-/* The ABI specifies that the unwind routines may only use core registers,
-   except when actually manipulating coprocessor state.  This allows
-   us to write one implementation that works on all platforms by
-   demand-saving coprocessor registers.
-
-   During unwinding we hold the coprocessor state in the actual hardware
-   registers and allocate demand-save areas for use during phase1
-   unwinding.  */
-
-typedef struct
-{
-  /* The first fields must be the same as a phase2_vrs.  */
-  _uw demand_save_flags;
-  struct core_regs core;
-  _uw prev_sp; /* Only valid during forced unwinding.  */
-  struct vfp_regs vfp;
-  struct vfpv3_regs vfp_regs_16_to_31;
-  struct fpa_regs fpa;
-  struct wmmxd_regs wmmxd;
-  struct wmmxc_regs wmmxc;
-} phase1_vrs;
-
-/* This must match the structure created by the assembly wrappers.  */
-typedef struct
-{
-  _uw demand_save_flags;
-  struct core_regs core;
-} phase2_vrs;
-
-
-/* An exception index table entry.  */
-
-typedef struct __EIT_entry
-{
-  _uw fnoffset;
-  _uw content;
-} __EIT_entry;
-
-/* Derived version to use ptrace */
-typedef _Unwind_Reason_Code (*personality_routine_with_ptrace)
-           (_Unwind_State,
-			_Unwind_Control_Block *,
-			_Unwind_Context *,
-            pid_t);
-
-/* Derived version to use ptrace */
-/* ABI defined personality routines.  */
-static _Unwind_Reason_Code unwind_cpp_pr0_with_ptrace (_Unwind_State,
-    _Unwind_Control_Block *, _Unwind_Context *, pid_t);
-static _Unwind_Reason_Code unwind_cpp_pr1_with_ptrace (_Unwind_State,
-    _Unwind_Control_Block *, _Unwind_Context *, pid_t);
-static _Unwind_Reason_Code unwind_cpp_pr2_with_ptrace (_Unwind_State,
-    _Unwind_Control_Block *, _Unwind_Context *, pid_t);
-
-/* Execute the unwinding instructions described by UWS.  */
-extern _Unwind_Reason_Code
-unwind_execute_with_ptrace(_Unwind_Context * context, __gnu_unwind_state * uws,
-                           pid_t pid);
-
-/* Derived version to use ptrace. Only handles core registers. Disregards
- * FP and others. 
- */
-/* ABI defined function to pop registers off the stack.  */
-
-_Unwind_VRS_Result unwind_VRS_Pop_with_ptrace (_Unwind_Context *context,
-				    _Unwind_VRS_RegClass regclass,
-				    _uw discriminator,
-				    _Unwind_VRS_DataRepresentation representation,
-                    pid_t pid)
-{
-  phase1_vrs *vrs = (phase1_vrs *) context;
-
-  switch (regclass)
-    {
-    case _UVRSC_CORE:
-      {
-	_uw *ptr;
-	_uw mask;
-	int i;
-
-	if (representation != _UVRSD_UINT32)
-	  return _UVRSR_FAILED;
-
-	mask = discriminator & 0xffff;
-	ptr = (_uw *) vrs->core.r[R_SP];
-	/* Pop the requested registers.  */
-	for (i = 0; i < 16; i++)
-	  {
-	    if (mask & (1 << i)) {
-	      vrs->core.r[i] = get_remote_word(pid, ptr);
-          ptr++;
-        }
-	  }
-	/* Writeback the stack pointer value if it wasn't restored.  */
-	if ((mask & (1 << R_SP)) == 0)
-	  vrs->core.r[R_SP] = (_uw) ptr;
-      }
-      return _UVRSR_OK;
-
-    default:
-      return _UVRSR_FAILED;
-    }
-}
-
-/* Core unwinding functions.  */
-
-/* Calculate the address encoded by a 31-bit self-relative offset at address
-   P.  */
-static inline _uw
-selfrel_offset31 (const _uw *p, pid_t pid)
-{
-  _uw offset = get_remote_word(pid, (void*)p);
-
-  //offset = *p;
-  /* Sign extend to 32 bits.  */
-  if (offset & (1 << 30))
-    offset |= 1u << 31;
-  else
-    offset &= ~(1u << 31);
-
-  return offset + (_uw) p;
-}
-
-
-/* Perform a binary search for RETURN_ADDRESS in TABLE.  The table contains
-   NREC entries.  */
-
-static const __EIT_entry *
-search_EIT_table (const __EIT_entry * table, int nrec, _uw return_address,
-                  pid_t pid)
-{
-  _uw next_fn;
-  _uw this_fn;
-  int n, left, right;
-
-  if (nrec == 0)
-    return (__EIT_entry *) 0;
-
-  left = 0;
-  right = nrec - 1;
-
-  while (1)
-    {
-      n = (left + right) / 2;
-      this_fn = selfrel_offset31 (&table[n].fnoffset, pid);
-      if (n != nrec - 1)
-	next_fn = selfrel_offset31 (&table[n + 1].fnoffset, pid) - 1;
-      else
-	next_fn = (_uw)0 - 1;
-
-      if (return_address < this_fn)
-	{
-	  if (n == left)
-	    return (__EIT_entry *) 0;
-	  right = n - 1;
-	}
-      else if (return_address <= next_fn)
-	return &table[n];
-      else
-	left = n + 1;
-    }
-}
-
-/* Find the exception index table eintry for the given address. */
-static const __EIT_entry*
-get_eitp(_uw return_address, pid_t pid, mapinfo *map, mapinfo **containing_map)
-{
-  const __EIT_entry *eitp = NULL;
-  int nrec;
-  mapinfo *mi;
-  
-  /* The return address is the address of the instruction following the
-     call instruction (plus one in thumb mode).  If this was the last
-     instruction in the function the address will lie in the following
-     function.  Subtract 2 from the address so that it points within the call
-     instruction itself.  */
-  if (return_address >= 2)
-      return_address -= 2;
-
-  for (mi = map; mi != NULL; mi = mi->next) {
-    if (return_address >= mi->start && return_address <= mi->end) break;
-  }
-
-  if (mi) {
-    if (containing_map) *containing_map = mi;
-    eitp = (__EIT_entry *) mi->exidx_start;
-    nrec = (mi->exidx_end - mi->exidx_start)/sizeof(__EIT_entry);
-    eitp = search_EIT_table (eitp, nrec, return_address, pid);
-  }
-  return eitp;
-}
-
-/* Find the exception index table eintry for the given address.
-   Fill in the relevant fields of the UCB.
-   Returns _URC_FAILURE if an error occurred, _URC_OK on success.  */
-
-static _Unwind_Reason_Code
-get_eit_entry (_Unwind_Control_Block *ucbp, _uw return_address, pid_t pid, 
-               mapinfo *map, mapinfo **containing_map)
-{
-  const __EIT_entry *eitp;
-  
-  eitp = get_eitp(return_address, pid, map, containing_map);
-
-  if (!eitp)
-    {
-      UCB_PR_ADDR (ucbp) = 0;
-      return _URC_FAILURE;
-    }
-  ucbp->pr_cache.fnstart = selfrel_offset31 (&eitp->fnoffset, pid);
-
-  _uw eitp_content = get_remote_word(pid, (void *)&eitp->content);
-
-  /* Can this frame be unwound at all?  */
-  if (eitp_content == EXIDX_CANTUNWIND)
-    {
-      UCB_PR_ADDR (ucbp) = 0;
-      return _URC_END_OF_STACK;
-    }
-
-  /* Obtain the address of the "real" __EHT_Header word.  */
-
-  if (eitp_content & uint32_highbit)
-    {
-      /* It is immediate data.  */
-      ucbp->pr_cache.ehtp = (_Unwind_EHT_Header *)&eitp->content;
-      ucbp->pr_cache.additional = 1;
-    }
-  else
-    {
-      /* The low 31 bits of the content field are a self-relative
-	 offset to an _Unwind_EHT_Entry structure.  */
-      ucbp->pr_cache.ehtp =
-	(_Unwind_EHT_Header *) selfrel_offset31 (&eitp->content, pid);
-      ucbp->pr_cache.additional = 0;
-    }
-
-  /* Discover the personality routine address.  */
-  if (get_remote_word(pid, ucbp->pr_cache.ehtp) & (1u << 31))
-    {
-      /* One of the predefined standard routines.  */
-      _uw idx = (get_remote_word(pid, ucbp->pr_cache.ehtp) >> 24) & 0xf;
-      if (idx == 0)
-	UCB_PR_ADDR (ucbp) = (_uw) &unwind_cpp_pr0_with_ptrace;
-      else if (idx == 1)
-	UCB_PR_ADDR (ucbp) = (_uw) &unwind_cpp_pr1_with_ptrace;
-      else if (idx == 2)
-	UCB_PR_ADDR (ucbp) = (_uw) &unwind_cpp_pr2_with_ptrace;
-      else
-	{ /* Failed */
-	  UCB_PR_ADDR (ucbp) = 0;
-	  return _URC_FAILURE;
-	}
-    } 
-  else
-    {
-      /* Execute region offset to PR */
-      UCB_PR_ADDR (ucbp) = selfrel_offset31 (ucbp->pr_cache.ehtp, pid);
-      /* Since we are unwinding the stack from a different process, it is
-       * impossible to execute the personality routine in debuggerd. Punt here.
-       */
-	  return _URC_FAILURE;
-    }
-  return _URC_OK;
-}
-
-/* Print out the current call level, pc, and module name in the crash log */
-static _Unwind_Reason_Code log_function(_Unwind_Context *context, pid_t pid, 
-                                        int tfd,
-                                        int stack_level,
-                                        mapinfo *map,
-                                        unsigned int sp_list[],
-                                        bool at_fault)
-{
-    _uw pc;
-    _uw rel_pc; 
-    phase2_vrs *vrs = (phase2_vrs*) context;
-    const mapinfo *mi;
-    bool only_in_tombstone = !at_fault;
-    const struct symbol* sym = 0;
-
-    if (stack_level < STACK_CONTENT_DEPTH) {
-        sp_list[stack_level] = vrs->core.r[R_SP];
-    }
-    pc = vrs->core.r[R_PC];
-
-    // Top level frame
-    if (stack_level == 0) {
-        pc &= ~1;
-    }
-    // For deeper framers, rollback pc by one instruction
-    else {
-        pc = vrs->core.r[R_PC];
-        /* Thumb mode - need to check whether the bl(x) has long offset or not.
-         * Examples:
-         *
-         * arm blx in the middle of thumb:
-         * 187ae:       2300            movs    r3, #0
-         * 187b0:       f7fe ee1c       blx     173ec
-         * 187b4:       2c00            cmp     r4, #0
-         *
-         * arm bl in the middle of thumb:
-         * 187d8:       1c20            adds    r0, r4, #0
-         * 187da:       f136 fd15       bl      14f208
-         * 187de:       2800            cmp     r0, #0
-         *
-         * pure thumb:
-         * 18894:       189b            adds    r3, r3, r2
-         * 18896:       4798            blx     r3
-         * 18898:       b001            add     sp, #4
-         */
-        if (pc & 1) {
-            _uw prev_word;
-            pc = (pc & ~1);
-            prev_word = get_remote_word(pid, (char *) pc-4);
-            // Long offset 
-            if ((prev_word & 0xf0000000) == 0xf0000000 && 
-                (prev_word & 0x0000e000) == 0x0000e000) {
-                pc -= 4;
-            }
-            else {
-                pc -= 2;
-            }
-        }
-        else { 
-            pc -= 4;
-        }
-    }
-
-    /* We used to print the absolute PC in the back trace, and mask out the top
-     * 3 bits to guesstimate the offset in the .so file. This is not working for
-     * non-prelinked libraries since the starting offset may not be aligned on 
-     * 1MB boundaries, and the library may be larger than 1MB. So for .so 
-     * addresses we print the relative offset in back trace.
-     */
-    mi = pc_to_mapinfo(map, pc, &rel_pc);
-
-    /* See if we can determine what symbol this stack frame resides in */
-    if (mi != 0 && mi->symbols != 0) {
-        sym = symbol_table_lookup(mi->symbols, rel_pc);
-    }
-
-    if (sym) {
-        _LOG(tfd, only_in_tombstone,
-            "         #%02d  pc %08x  %s (%s)\n", stack_level, rel_pc,
-            mi ? mi->name : "", sym->name);
-    } else {
-        _LOG(tfd, only_in_tombstone,
-            "         #%02d  pc %08x  %s\n", stack_level, rel_pc,
-            mi ? mi->name : "");
-    }
-
-    return _URC_NO_REASON;
-}
-
-/* Derived from __gnu_Unwind_Backtrace to use ptrace */
-/* Perform stack backtrace through unwind data. Return the level of stack it
- * unwinds.
- */
-int unwind_backtrace_with_ptrace(int tfd, pid_t pid, mapinfo *map, 
-                                 unsigned int sp_list[], int *frame0_pc_sane,
-                                 bool at_fault)
-{
-    phase1_vrs saved_vrs;
-    _Unwind_Reason_Code code = _URC_OK;
-    struct pt_regs r;
-    int i;
-    int stack_level = 0;
-
-    _Unwind_Control_Block ucb;
-    _Unwind_Control_Block *ucbp = &ucb;
-
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) return 0;
-
-    for (i = 0; i < 16; i++) {
-        saved_vrs.core.r[i] = r.uregs[i];
-        /*
-        _LOG(tfd, "r[%d] = 0x%x\n", i, saved_vrs.core.r[i]);
-        */
-    }
-
-    /* Set demand-save flags.  */
-    saved_vrs.demand_save_flags = ~(_uw) 0;
-
-    /* 
-     * If the app crashes because of calling the weeds, we cannot pass the PC 
-     * to the usual unwinding code as the EXIDX mapping will fail. 
-     * Instead, we simply print out the 0 as the top frame, and resume the 
-     * unwinding process with the value stored in LR.
-     */
-    if (get_eitp(saved_vrs.core.r[R_PC], pid, map, NULL) == NULL) { 
-        *frame0_pc_sane = 0;
-        log_function ((_Unwind_Context *) &saved_vrs, pid, tfd, stack_level, 
-                      map, sp_list, at_fault);
-        saved_vrs.core.r[R_PC] = saved_vrs.core.r[R_LR];
-        stack_level++;
-    }
-
-    do {
-        mapinfo *this_map = NULL;
-        /* Find the entry for this routine.  */
-        if (get_eit_entry(ucbp, saved_vrs.core.r[R_PC], pid, map, &this_map)
-            != _URC_OK) {
-            /* Uncomment the code below to study why the unwinder failed */
-#if 0
-            /* Shed more debugging info for stack unwinder improvement */
-            if (this_map) {
-                _LOG(tfd, 1, 
-                     "Relative PC=%#x from %s not contained in EXIDX\n", 
-                     saved_vrs.core.r[R_PC] - this_map->start, this_map->name);
-            }
-            _LOG(tfd, 1, "PC=%#x SP=%#x\n", 
-                 saved_vrs.core.r[R_PC], saved_vrs.core.r[R_SP]);
-#endif
-            code = _URC_FAILURE;
-            break;
-        }
-
-        /* The dwarf unwinder assumes the context structure holds things
-        like the function and LSDA pointers.  The ARM implementation
-        caches these in the exception header (UCB).  To avoid
-        rewriting everything we make the virtual IP register point at
-        the UCB.  */
-        _Unwind_SetGR((_Unwind_Context *)&saved_vrs, 12, (_Unwind_Ptr) ucbp);
-
-        /* Call log function.  */
-        if (log_function ((_Unwind_Context *) &saved_vrs, pid, tfd, stack_level,
-                          map, sp_list, at_fault) != _URC_NO_REASON) {
-            code = _URC_FAILURE;
-            break;
-        }
-        stack_level++;
-
-        /* Call the pr to decide what to do.  */
-        code = ((personality_routine_with_ptrace) UCB_PR_ADDR (ucbp))(
-                _US_VIRTUAL_UNWIND_FRAME | _US_FORCE_UNWIND, ucbp, 
-                (void *) &saved_vrs, pid);
-    /* 
-     * In theory the unwinding process will stop when the end of stack is
-     * reached or there is no unwinding information for the code address.
-     * To add another level of guarantee that the unwinding process
-     * will terminate we will stop it when the STACK_CONTENT_DEPTH is reached.
-     */
-    } while (code != _URC_END_OF_STACK && code != _URC_FAILURE && 
-             stack_level < STACK_CONTENT_DEPTH);
-    return stack_level;
-}
-
-
-/* Derived version to use ptrace */
-/* Common implementation for ARM ABI defined personality routines.
-   ID is the index of the personality routine, other arguments are as defined
-   by __aeabi_unwind_cpp_pr{0,1,2}.  */
-
-static _Unwind_Reason_Code
-unwind_pr_common_with_ptrace (_Unwind_State state,
-			_Unwind_Control_Block *ucbp,
-			_Unwind_Context *context,
-			int id,
-            pid_t pid)
-{
-  __gnu_unwind_state uws;
-  _uw *data;
-  int phase2_call_unexpected_after_unwind = 0;
-
-  state &= _US_ACTION_MASK;
-
-  data = (_uw *) ucbp->pr_cache.ehtp;
-  uws.data = get_remote_word(pid, data);
-  data++;
-  uws.next = data;
-  if (id == 0)
-    {
-      uws.data <<= 8;
-      uws.words_left = 0;
-      uws.bytes_left = 3;
-    }
-  else
-    {
-      uws.words_left = (uws.data >> 16) & 0xff;
-      uws.data <<= 16;
-      uws.bytes_left = 2;
-      data += uws.words_left;
-    }
-
-  /* Restore the saved pointer.  */
-  if (state == _US_UNWIND_FRAME_RESUME)
-    data = (_uw *) ucbp->cleanup_cache.bitpattern[0];
-
-  if ((ucbp->pr_cache.additional & 1) == 0)
-    {
-      /* Process descriptors.  */
-      while (get_remote_word(pid, data)) {
-      /**********************************************************************
-       * The original code here seems to deal with exceptions that are not
-       * applicable in our toolchain, thus there is no way to test it for now.
-       * Instead of leaving it here and causing potential instability in
-       * debuggerd, we'd better punt here and leave the stack unwound.
-       * In the future when we discover cases where the stack should be unwound
-       * further but is not, we can revisit the code here.
-       **********************************************************************/
-        return _URC_FAILURE;
-	  }
-	  /* Finished processing this descriptor.  */
-    }
-
-  if (unwind_execute_with_ptrace (context, &uws, pid) != _URC_OK)
-    return _URC_FAILURE;
-
-  if (phase2_call_unexpected_after_unwind)
-    {
-      /* Enter __cxa_unexpected as if called from the call site.  */
-      _Unwind_SetGR (context, R_LR, _Unwind_GetGR (context, R_PC));
-      _Unwind_SetGR (context, R_PC, (_uw) &__cxa_call_unexpected);
-      return _URC_INSTALL_CONTEXT;
-    }
-
-  return _URC_CONTINUE_UNWIND;
-}
-
-
-/* ABI defined personality routine entry points.  */
-
-static _Unwind_Reason_Code
-unwind_cpp_pr0_with_ptrace (_Unwind_State state,
-			_Unwind_Control_Block *ucbp,
-			_Unwind_Context *context,
-            pid_t pid)
-{
-  return unwind_pr_common_with_ptrace (state, ucbp, context, 0, pid);
-}
-
-static _Unwind_Reason_Code
-unwind_cpp_pr1_with_ptrace (_Unwind_State state,
-			_Unwind_Control_Block *ucbp,
-			_Unwind_Context *context,
-            pid_t pid)
-{
-  return unwind_pr_common_with_ptrace (state, ucbp, context, 1, pid);
-}
-
-static _Unwind_Reason_Code
-unwind_cpp_pr2_with_ptrace (_Unwind_State state,
-			_Unwind_Control_Block *ucbp,
-			_Unwind_Context *context,
-            pid_t pid)
-{
-  return unwind_pr_common_with_ptrace (state, ucbp, context, 2, pid);
-}
diff --git a/debuggerd/backtrace.c b/debuggerd/backtrace.c
new file mode 100644
index 0000000..62f7f32
--- /dev/null
+++ b/debuggerd/backtrace.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <time.h>
+#include <errno.h>
+#include <limits.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/ptrace.h>
+
+#include <corkscrew/backtrace.h>
+
+#include "tombstone.h"
+#include "utility.h"
+
+#define STACK_DEPTH 32
+
+static void dump_process_header(log_t* log, pid_t pid) {
+    char path[PATH_MAX];
+    char procnamebuf[1024];
+    char* procname = NULL;
+    FILE* fp;
+
+    snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
+    if ((fp = fopen(path, "r"))) {
+        procname = fgets(procnamebuf, sizeof(procnamebuf), fp);
+        fclose(fp);
+    }
+
+    time_t t = time(NULL);
+    struct tm tm;
+    localtime_r(&t, &tm);
+    char timestr[64];
+    strftime(timestr, sizeof(timestr), "%F %T", &tm);
+    _LOG(log, false, "\n\n----- pid %d at %s -----\n", pid, timestr);
+
+    if (procname) {
+        _LOG(log, false, "Cmd line: %s\n", procname);
+    }
+}
+
+static void dump_process_footer(log_t* log, pid_t pid) {
+    _LOG(log, false, "\n----- end %d -----\n", pid);
+}
+
+static void dump_thread(log_t* log, pid_t tid, ptrace_context_t* context, bool attached,
+        bool* detach_failed, int* total_sleep_time_usec) {
+    char path[PATH_MAX];
+    char threadnamebuf[1024];
+    char* threadname = NULL;
+    FILE* fp;
+
+    snprintf(path, sizeof(path), "/proc/%d/comm", tid);
+    if ((fp = fopen(path, "r"))) {
+        threadname = fgets(threadnamebuf, sizeof(threadnamebuf), fp);
+        fclose(fp);
+        if (threadname) {
+            size_t len = strlen(threadname);
+            if (len && threadname[len - 1] == '\n') {
+                threadname[len - 1] = '\0';
+            }
+        }
+    }
+
+    _LOG(log, false, "\n\"%s\" sysTid=%d\n", threadname ? threadname : "<unknown>", tid);
+
+    if (!attached && ptrace(PTRACE_ATTACH, tid, 0, 0) < 0) {
+        _LOG(log, false, "Could not attach to thread: %s\n", strerror(errno));
+        return;
+    }
+
+    wait_for_stop(tid, total_sleep_time_usec);
+
+    backtrace_frame_t backtrace[STACK_DEPTH];
+    ssize_t frames = unwind_backtrace_ptrace(tid, context, backtrace, 0, STACK_DEPTH);
+    if (frames <= 0) {
+        _LOG(log, false, "Could not obtain stack trace for thread.\n");
+    } else {
+        backtrace_symbol_t backtrace_symbols[STACK_DEPTH];
+        get_backtrace_symbols_ptrace(context, backtrace, frames, backtrace_symbols);
+        for (size_t i = 0; i < (size_t)frames; i++) {
+            char line[MAX_BACKTRACE_LINE_LENGTH];
+            format_backtrace_line(i, &backtrace[i], &backtrace_symbols[i],
+                    line, MAX_BACKTRACE_LINE_LENGTH);
+            _LOG(log, false, "  %s\n", line);
+        }
+        free_backtrace_symbols(backtrace_symbols, frames);
+    }
+
+    if (!attached && ptrace(PTRACE_DETACH, tid, 0, 0) != 0) {
+        LOG("ptrace detach from %d failed: %s\n", tid, strerror(errno));
+        *detach_failed = true;
+    }
+}
+
+void dump_backtrace(int fd, pid_t pid, pid_t tid, bool* detach_failed,
+        int* total_sleep_time_usec) {
+    log_t log;
+    log.tfd = fd;
+    log.quiet = true;
+
+    ptrace_context_t* context = load_ptrace_context(tid);
+    dump_process_header(&log, pid);
+    dump_thread(&log, tid, context, true, detach_failed, total_sleep_time_usec);
+
+    char task_path[64];
+    snprintf(task_path, sizeof(task_path), "/proc/%d/task", pid);
+    DIR* d = opendir(task_path);
+    if (d) {
+        struct dirent debuf;
+        struct dirent *de;
+        while (!readdir_r(d, &debuf, &de) && de) {
+            if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..")) {
+                continue;
+            }
+
+            char* end;
+            pid_t new_tid = strtoul(de->d_name, &end, 10);
+            if (*end || new_tid == tid) {
+                continue;
+            }
+
+            dump_thread(&log, new_tid, context, false, detach_failed, total_sleep_time_usec);
+        }
+        closedir(d);
+    }
+
+    dump_process_footer(&log, pid);
+    free_ptrace_context(context);
+}
diff --git a/debuggerd/backtrace.h b/debuggerd/backtrace.h
new file mode 100644
index 0000000..ec7d20f
--- /dev/null
+++ b/debuggerd/backtrace.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _DEBUGGERD_BACKTRACE_H
+#define _DEBUGGERD_BACKTRACE_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include <corkscrew/ptrace.h>
+
+/* Dumps a backtrace using a format similar to what Dalvik uses so that the result
+ * can be intermixed in a bug report. */
+void dump_backtrace(int fd, pid_t pid, pid_t tid, bool* detach_failed,
+        int* total_sleep_time_usec);
+
+#endif // _DEBUGGERD_BACKTRACE_H
diff --git a/debuggerd/debuggerd.c b/debuggerd/debuggerd.c
index 2acf26d..8009631 100644
--- a/debuggerd/debuggerd.c
+++ b/debuggerd/debuggerd.c
@@ -23,591 +23,36 @@
 #include <fcntl.h>
 #include <sys/types.h>
 #include <dirent.h>
+#include <time.h>
 
 #include <sys/ptrace.h>
 #include <sys/wait.h>
 #include <sys/exec_elf.h>
 #include <sys/stat.h>
+#include <sys/poll.h>
 
 #include <cutils/sockets.h>
 #include <cutils/logd.h>
 #include <cutils/logger.h>
 #include <cutils/properties.h>
+#include <cutils/debugger.h>
+
+#include <corkscrew/backtrace.h>
 
 #include <linux/input.h>
 
 #include <private/android_filesystem_config.h>
 
-#include "debuggerd.h"
+#include "backtrace.h"
+#include "getevent.h"
+#include "tombstone.h"
 #include "utility.h"
 
-#define ANDROID_LOG_INFO 4
-
-void _LOG(int tfd, bool in_tombstone_only, const char *fmt, ...)
-    __attribute__ ((format(printf, 3, 4)));
-
-/* Log information onto the tombstone */
-void _LOG(int tfd, bool in_tombstone_only, const char *fmt, ...)
-{
-    char buf[512];
-
-    va_list ap;
-    va_start(ap, fmt);
-
-    if (tfd >= 0) {
-        int len;
-        vsnprintf(buf, sizeof(buf), fmt, ap);
-        len = strlen(buf);
-        if(tfd >= 0) write(tfd, buf, len);
-    }
-
-    if (!in_tombstone_only)
-        __android_log_vprint(ANDROID_LOG_INFO, "DEBUG", fmt, ap);
-    va_end(ap);
-}
-
-// 6f000000-6f01e000 rwxp 00000000 00:0c 16389419   /system/lib/libcomposer.so
-// 012345678901234567890123456789012345678901234567890123456789
-// 0         1         2         3         4         5
-
-mapinfo *parse_maps_line(char *line)
-{
-    mapinfo *mi;
-    int len = strlen(line);
-
-    if (len < 1) return 0;      /* not expected */
-    line[--len] = 0;
-
-    if (len < 50) {
-        mi = malloc(sizeof(mapinfo) + 1);
-    } else {
-        mi = malloc(sizeof(mapinfo) + (len - 47));
-    }
-    if (mi == 0) return 0;
-
-    mi->isExecutable = (line[20] == 'x');
-
-    mi->start = strtoul(line, 0, 16);
-    mi->end = strtoul(line + 9, 0, 16);
-    /* To be filled in parse_elf_info if the mapped section starts with
-     * elf_header
-     */
-    mi->exidx_start = mi->exidx_end = 0;
-    mi->symbols = 0;
-    mi->next = 0;
-    if (len < 50) {
-        mi->name[0] = '\0';
-    } else {
-        strcpy(mi->name, line + 49);
-    }
-
-    return mi;
-}
-
-void dump_build_info(int tfd)
-{
-    char fingerprint[PROPERTY_VALUE_MAX];
-
-    property_get("ro.build.fingerprint", fingerprint, "unknown");
-
-    _LOG(tfd, false, "Build fingerprint: '%s'\n", fingerprint);
-}
-
-const char *get_signame(int sig)
-{
-    switch(sig) {
-    case SIGILL:     return "SIGILL";
-    case SIGABRT:    return "SIGABRT";
-    case SIGBUS:     return "SIGBUS";
-    case SIGFPE:     return "SIGFPE";
-    case SIGSEGV:    return "SIGSEGV";
-    case SIGSTKFLT:  return "SIGSTKFLT";
-    default:         return "?";
-    }
-}
-
-const char *get_sigcode(int signo, int code)
-{
-    switch (signo) {
-    case SIGILL:
-        switch (code) {
-        case ILL_ILLOPC: return "ILL_ILLOPC";
-        case ILL_ILLOPN: return "ILL_ILLOPN";
-        case ILL_ILLADR: return "ILL_ILLADR";
-        case ILL_ILLTRP: return "ILL_ILLTRP";
-        case ILL_PRVOPC: return "ILL_PRVOPC";
-        case ILL_PRVREG: return "ILL_PRVREG";
-        case ILL_COPROC: return "ILL_COPROC";
-        case ILL_BADSTK: return "ILL_BADSTK";
-        }
-        break;
-    case SIGBUS:
-        switch (code) {
-        case BUS_ADRALN: return "BUS_ADRALN";
-        case BUS_ADRERR: return "BUS_ADRERR";
-        case BUS_OBJERR: return "BUS_OBJERR";
-        }
-        break;
-    case SIGFPE:
-        switch (code) {
-        case FPE_INTDIV: return "FPE_INTDIV";
-        case FPE_INTOVF: return "FPE_INTOVF";
-        case FPE_FLTDIV: return "FPE_FLTDIV";
-        case FPE_FLTOVF: return "FPE_FLTOVF";
-        case FPE_FLTUND: return "FPE_FLTUND";
-        case FPE_FLTRES: return "FPE_FLTRES";
-        case FPE_FLTINV: return "FPE_FLTINV";
-        case FPE_FLTSUB: return "FPE_FLTSUB";
-        }
-        break;
-    case SIGSEGV:
-        switch (code) {
-        case SEGV_MAPERR: return "SEGV_MAPERR";
-        case SEGV_ACCERR: return "SEGV_ACCERR";
-        }
-        break;
-    }
-    return "?";
-}
-
-void dump_fault_addr(int tfd, int pid, int sig)
-{
-    siginfo_t si;
-
-    memset(&si, 0, sizeof(si));
-    if(ptrace(PTRACE_GETSIGINFO, pid, 0, &si)){
-        _LOG(tfd, false, "cannot get siginfo: %s\n", strerror(errno));
-    } else if (signal_has_address(sig)) {
-        _LOG(tfd, false, "signal %d (%s), code %d (%s), fault addr %08x\n",
-             sig, get_signame(sig),
-             si.si_code, get_sigcode(sig, si.si_code),
-             (uintptr_t) si.si_addr);
-    } else {
-        _LOG(tfd, false, "signal %d (%s), code %d (%s), fault addr --------\n",
-             sig, get_signame(sig), si.si_code, get_sigcode(sig, si.si_code));
-    }
-}
-
-void dump_crash_banner(int tfd, unsigned pid, unsigned tid, int sig)
-{
-    char data[1024];
-    char *x = 0;
-    FILE *fp;
-
-    sprintf(data, "/proc/%d/cmdline", pid);
-    fp = fopen(data, "r");
-    if(fp) {
-        x = fgets(data, 1024, fp);
-        fclose(fp);
-    }
-
-    _LOG(tfd, false,
-         "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\n");
-    dump_build_info(tfd);
-    _LOG(tfd, false, "pid: %d, tid: %d  >>> %s <<<\n",
-         pid, tid, x ? x : "UNKNOWN");
-
-    if(sig) dump_fault_addr(tfd, tid, sig);
-}
-
-static void parse_elf_info(mapinfo *milist, pid_t pid)
-{
-    mapinfo *mi;
-    for (mi = milist; mi != NULL; mi = mi->next) {
-        if (!mi->isExecutable)
-            continue;
-
-        Elf32_Ehdr ehdr;
-
-        memset(&ehdr, 0, sizeof(Elf32_Ehdr));
-        /* Read in sizeof(Elf32_Ehdr) worth of data from the beginning of
-         * mapped section.
-         */
-        get_remote_struct(pid, (void *) (mi->start), &ehdr,
-                          sizeof(Elf32_Ehdr));
-        /* Check if it has the matching magic words */
-        if (IS_ELF(ehdr)) {
-            Elf32_Phdr phdr;
-            Elf32_Phdr *ptr;
-            int i;
-
-            ptr = (Elf32_Phdr *) (mi->start + ehdr.e_phoff);
-            for (i = 0; i < ehdr.e_phnum; i++) {
-                /* Parse the program header */
-                get_remote_struct(pid, (char *) (ptr+i), &phdr,
-                                  sizeof(Elf32_Phdr));
-#ifdef __arm__
-                /* Found a EXIDX segment? */
-                if (phdr.p_type == PT_ARM_EXIDX) {
-                    mi->exidx_start = mi->start + phdr.p_offset;
-                    mi->exidx_end = mi->exidx_start + phdr.p_filesz;
-                    break;
-                }
-#endif
-            }
-
-            /* Try to load symbols from this file */
-            mi->symbols = symbol_table_create(mi->name);
-        }
-    }
-}
-
-void dump_crash_report(int tfd, unsigned pid, unsigned tid, bool at_fault)
-{
-    char data[1024];
-    FILE *fp;
-    mapinfo *milist = 0;
-    unsigned int sp_list[STACK_CONTENT_DEPTH];
-    int stack_depth;
-#ifdef __arm__
-    int frame0_pc_sane = 1;
-#endif
-
-    if (!at_fault) {
-        _LOG(tfd, true,
-         "--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---\n");
-        _LOG(tfd, true, "pid: %d, tid: %d\n", pid, tid);
-    }
-
-    dump_registers(tfd, tid, at_fault);
-
-    /* Clear stack pointer records */
-    memset(sp_list, 0, sizeof(sp_list));
-
-    sprintf(data, "/proc/%d/maps", pid);
-    fp = fopen(data, "r");
-    if(fp) {
-        while(fgets(data, 1024, fp)) {
-            mapinfo *mi = parse_maps_line(data);
-            if(mi) {
-                mi->next = milist;
-                milist = mi;
-            }
-        }
-        fclose(fp);
-    }
-
-    parse_elf_info(milist, tid);
-
-#if __arm__
-    /* If stack unwinder fails, use the default solution to dump the stack
-     * content.
-     */
-    stack_depth = unwind_backtrace_with_ptrace(tfd, tid, milist, sp_list,
-                                               &frame0_pc_sane, at_fault);
-
-    /* The stack unwinder should at least unwind two levels of stack. If less
-     * level is seen we make sure at lease pc and lr are dumped.
-     */
-    if (stack_depth < 2) {
-        dump_pc_and_lr(tfd, tid, milist, stack_depth, at_fault);
-    }
-
-    dump_stack_and_code(tfd, tid, milist, stack_depth, sp_list, at_fault);
-#elif __i386__
-    /* If stack unwinder fails, use the default solution to dump the stack
-    * content.
-    */
-    stack_depth = unwind_backtrace_with_ptrace_x86(tfd, tid, milist,at_fault);
-#else
-#error "Unsupported architecture"
-#endif
-
-    while(milist) {
-        mapinfo *next = milist->next;
-        symbol_table_free(milist->symbols);
-        free(milist);
-        milist = next;
-    }
-}
-
-#define MAX_TOMBSTONES	10
-
-#define typecheck(x,y) {    \
-    typeof(x) __dummy1;     \
-    typeof(y) __dummy2;     \
-    (void)(&__dummy1 == &__dummy2); }
-
-#define TOMBSTONE_DIR	"/data/tombstones"
-
-/*
- * find_and_open_tombstone - find an available tombstone slot, if any, of the
- * form tombstone_XX where XX is 00 to MAX_TOMBSTONES-1, inclusive. If no
- * file is available, we reuse the least-recently-modified file.
- */
-static int find_and_open_tombstone(void)
-{
-    unsigned long mtime = ULONG_MAX;
-    struct stat sb;
-    char path[128];
-    int fd, i, oldest = 0;
-
-    /*
-     * XXX: Our stat.st_mtime isn't time_t. If it changes, as it probably ought
-     * to, our logic breaks. This check will generate a warning if that happens.
-     */
-    typecheck(mtime, sb.st_mtime);
-
-    /*
-     * In a single wolf-like pass, find an available slot and, in case none
-     * exist, find and record the least-recently-modified file.
-     */
-    for (i = 0; i < MAX_TOMBSTONES; i++) {
-        snprintf(path, sizeof(path), TOMBSTONE_DIR"/tombstone_%02d", i);
-
-        if (!stat(path, &sb)) {
-            if (sb.st_mtime < mtime) {
-                oldest = i;
-                mtime = sb.st_mtime;
-            }
-            continue;
-        }
-        if (errno != ENOENT)
-            continue;
-
-        fd = open(path, O_CREAT | O_EXCL | O_WRONLY, 0600);
-        if (fd < 0)
-            continue;	/* raced ? */
-
-        fchown(fd, AID_SYSTEM, AID_SYSTEM);
-        return fd;
-    }
-
-    /* we didn't find an available file, so we clobber the oldest one */
-    snprintf(path, sizeof(path), TOMBSTONE_DIR"/tombstone_%02d", oldest);
-    fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
-    fchown(fd, AID_SYSTEM, AID_SYSTEM);
-
-    return fd;
-}
-
-/* Return true if some thread is not detached cleanly */
-static bool dump_sibling_thread_report(int tfd, unsigned pid, unsigned tid)
-{
-    char task_path[1024];
-
-    sprintf(task_path, "/proc/%d/task", pid);
-    DIR *d;
-    struct dirent *de;
-    int need_cleanup = 0;
-
-    d = opendir(task_path);
-    /* Bail early if cannot open the task directory */
-    if (d == NULL) {
-        XLOG("Cannot open /proc/%d/task\n", pid);
-        return false;
-    }
-    while ((de = readdir(d)) != NULL) {
-        unsigned new_tid;
-        /* Ignore "." and ".." */
-        if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
-            continue;
-        new_tid = atoi(de->d_name);
-        /* The main thread at fault has been handled individually */
-        if (new_tid == tid)
-            continue;
-
-        /* Skip this thread if cannot ptrace it */
-        if (ptrace(PTRACE_ATTACH, new_tid, 0, 0) < 0)
-            continue;
-
-        dump_crash_report(tfd, pid, new_tid, false);
-
-        if (ptrace(PTRACE_DETACH, new_tid, 0, 0) != 0) {
-            XLOG("detach of tid %d failed: %s\n", new_tid, strerror(errno));
-            need_cleanup = 1;
-        }
-    }
-    closedir(d);
-
-    return need_cleanup != 0;
-}
-
-/*
- * Reads the contents of the specified log device, filters out the entries
- * that don't match the specified pid, and writes them to the tombstone file.
- *
- * If "tailOnly" is set, we only print the last few lines.
- */
-static void dump_log_file(int tfd, unsigned pid, const char* filename,
-    bool tailOnly)
-{
-    bool first = true;
-
-    /* circular buffer, for "tailOnly" mode */
-    const int kShortLogMaxLines = 5;
-    const int kShortLogLineLen = 256;
-    char shortLog[kShortLogMaxLines][kShortLogLineLen];
-    int shortLogCount = 0;
-    int shortLogNext = 0;
-
-    int logfd = open(filename, O_RDONLY | O_NONBLOCK);
-    if (logfd < 0) {
-        XLOG("Unable to open %s: %s\n", filename, strerror(errno));
-        return;
-    }
-
-    union {
-        unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1];
-        struct logger_entry entry;
-    } log_entry;
-
-    while (true) {
-        ssize_t actual = read(logfd, log_entry.buf, LOGGER_ENTRY_MAX_LEN);
-        if (actual < 0) {
-            if (errno == EINTR) {
-                /* interrupted by signal, retry */
-                continue;
-            } else if (errno == EAGAIN) {
-                /* non-blocking EOF; we're done */
-                break;
-            } else {
-                _LOG(tfd, true, "Error while reading log: %s\n",
-                    strerror(errno));
-                break;
-            }
-        } else if (actual == 0) {
-            _LOG(tfd, true, "Got zero bytes while reading log: %s\n",
-                strerror(errno));
-            break;
-        }
-
-        /*
-         * NOTE: if you XLOG something here, this will spin forever,
-         * because you will be writing as fast as you're reading.  Any
-         * high-frequency debug diagnostics should just be written to
-         * the tombstone file.
-         */
-
-        struct logger_entry* entry = &log_entry.entry;
-
-        if (entry->pid != (int32_t) pid) {
-            /* wrong pid, ignore */
-            continue;
-        }
-
-        if (first) {
-            _LOG(tfd, true, "--------- %slog %s\n",
-                tailOnly ? "tail end of " : "", filename);
-            first = false;
-        }
-
-        /*
-         * Msg format is: <priority:1><tag:N>\0<message:N>\0
-         *
-         * We want to display it in the same format as "logcat -v threadtime"
-         * (although in this case the pid is redundant).
-         *
-         * TODO: scan for line breaks ('\n') and display each text line
-         * on a separate line, prefixed with the header, like logcat does.
-         */
-        static const char* kPrioChars = "!.VDIWEFS";
-        unsigned char prio = entry->msg[0];
-        char* tag = entry->msg + 1;
-        char* msg = tag + strlen(tag) + 1;
-
-        /* consume any trailing newlines */
-        char* eatnl = msg + strlen(msg) - 1;
-        while (eatnl >= msg && *eatnl == '\n') {
-            *eatnl-- = '\0';
-        }
-
-        char prioChar = (prio < strlen(kPrioChars) ? kPrioChars[prio] : '?');
-
-        char timeBuf[32];
-        time_t sec = (time_t) entry->sec;
-        struct tm tmBuf;
-        struct tm* ptm;
-        ptm = localtime_r(&sec, &tmBuf);
-        strftime(timeBuf, sizeof(timeBuf), "%m-%d %H:%M:%S", ptm);
-
-        if (tailOnly) {
-            snprintf(shortLog[shortLogNext], kShortLogLineLen,
-                "%s.%03d %5d %5d %c %-8s: %s",
-                timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
-                prioChar, tag, msg);
-            shortLogNext = (shortLogNext + 1) % kShortLogMaxLines;
-            shortLogCount++;
-        } else {
-            _LOG(tfd, true, "%s.%03d %5d %5d %c %-8s: %s\n",
-                timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
-                prioChar, tag, msg);
-        }
-    }
-
-    if (tailOnly) {
-        int i;
-
-        /*
-         * If we filled the buffer, we want to start at "next", which has
-         * the oldest entry.  If we didn't, we want to start at zero.
-         */
-        if (shortLogCount < kShortLogMaxLines) {
-            shortLogNext = 0;
-        } else {
-            shortLogCount = kShortLogMaxLines;  /* cap at window size */
-        }
-
-        for (i = 0; i < shortLogCount; i++) {
-            _LOG(tfd, true, "%s\n", shortLog[shortLogNext]);
-            shortLogNext = (shortLogNext + 1) % kShortLogMaxLines;
-        }
-    }
-
-    close(logfd);
-}
-
-/*
- * Dumps the logs generated by the specified pid to the tombstone, from both
- * "system" and "main" log devices.  Ideally we'd interleave the output.
- */
-static void dump_logs(int tfd, unsigned pid, bool tailOnly)
-{
-    dump_log_file(tfd, pid, "/dev/log/system", tailOnly);
-    dump_log_file(tfd, pid, "/dev/log/main", tailOnly);
-}
-
-/* Return true if some thread is not detached cleanly */
-static bool engrave_tombstone(unsigned pid, unsigned tid, int debug_uid,
-                              int signal)
-{
-    int fd;
-    bool need_cleanup = false;
-
-    /* don't copy log messages to tombstone unless this is a dev device */
-    char value[PROPERTY_VALUE_MAX];
-    property_get("ro.debuggable", value, "0");
-    bool wantLogs = (value[0] == '1');
-
-    mkdir(TOMBSTONE_DIR, 0755);
-    chown(TOMBSTONE_DIR, AID_SYSTEM, AID_SYSTEM);
-
-    fd = find_and_open_tombstone();
-    if (fd < 0)
-        return need_cleanup;
-
-    dump_crash_banner(fd, pid, tid, signal);
-    dump_crash_report(fd, pid, tid, true);
-
-    if (wantLogs) {
-        dump_logs(fd, pid, true);
-    }
-
-    /*
-     * If the user has requested to attach gdb, don't collect the per-thread
-     * information as it increases the chance to lose track of the process.
-     */
-    if ((signed)pid > debug_uid) {
-        need_cleanup = dump_sibling_thread_report(fd, pid, tid);
-    }
-
-    if (wantLogs) {
-        dump_logs(fd, pid, false);
-    }
-
-    close(fd);
-    return need_cleanup;
-}
+typedef struct {
+    debugger_action_t action;
+    pid_t pid, tid;
+    uid_t uid, gid;
+} debugger_request_t;
 
 static int
 write_string(const char* file, const char* string)
@@ -654,25 +99,21 @@
     write_string("/sys/class/leds/left/cadence", "0,0");
 }
 
-extern int init_getevent();
-extern void uninit_getevent();
-extern int get_event(struct input_event* event, int timeout);
-
-static void wait_for_user_action(unsigned tid, struct ucred* cr)
-{
-    (void)tid;
+static void wait_for_user_action(pid_t pid) {
     /* First log a helpful message */
     LOG(    "********************************************************\n"
             "* Process %d has been suspended while crashing.  To\n"
-            "* attach gdbserver for a gdb connection on port 5039:\n"
+            "* attach gdbserver for a gdb connection on port 5039\n"
+            "* and start gdbclient:\n"
             "*\n"
-            "*     adb shell gdbserver :5039 --attach %d &\n"
+            "*     gdbclient app_process :5039 %d\n"
             "*\n"
-            "* Press HOME key to let the process continue crashing.\n"
+            "* Wait for gdb to start, then press HOME or VOLUME DOWN key\n"
+            "* to let the process continue crashing.\n"
             "********************************************************\n",
-            cr->pid, cr->pid);
+            pid, pid);
 
-    /* wait for HOME key (TODO: something useful for devices w/o HOME key) */
+    /* wait for HOME or VOLUME DOWN key */
     if (init_getevent() == 0) {
         int ms = 1200 / 10;
         int dit = 1;
@@ -685,15 +126,18 @@
         };
         size_t s = 0;
         struct input_event e;
-        int home = 0;
+        bool done = false;
         init_debug_led();
         enable_debug_led();
         do {
             int timeout = abs((int)(codes[s])) * ms;
             int res = get_event(&e, timeout);
             if (res == 0) {
-                if (e.type==EV_KEY && e.code==KEY_HOME && e.value==0)
-                    home = 1;
+                if (e.type == EV_KEY
+                        && (e.code == KEY_HOME || e.code == KEY_VOLUMEDOWN)
+                        && e.value == 0) {
+                    done = true;
+                }
             } else if (res == 1) {
                 if (++s >= sizeof(codes)/sizeof(*codes))
                     s = 0;
@@ -703,202 +147,269 @@
                     disable_debug_led();
                 }
             }
-        } while (!home);
+        } while (!done);
         uninit_getevent();
     }
 
     /* don't forget to turn debug led off */
     disable_debug_led();
+    LOG("debuggerd resuming process %d", pid);
+}
 
-    /* close filedescriptor */
-    LOG("debuggerd resuming process %d", cr->pid);
- }
+static int get_process_info(pid_t tid, pid_t* out_pid, uid_t* out_uid, uid_t* out_gid) {
+    char path[64];
+    snprintf(path, sizeof(path), "/proc/%d/status", tid);
 
-static void handle_crashing_process(int fd)
-{
-    char buf[64];
-    struct stat s;
-    unsigned tid;
+    FILE* fp = fopen(path, "r");
+    if (!fp) {
+        return -1;
+    }
+
+    int fields = 0;
+    char line[1024];
+    while (fgets(line, sizeof(line), fp)) {
+        size_t len = strlen(line);
+        if (len > 6 && !memcmp(line, "Tgid:\t", 6)) {
+            *out_pid = atoi(line + 6);
+            fields |= 1;
+        } else if (len > 5 && !memcmp(line, "Uid:\t", 5)) {
+            *out_uid = atoi(line + 5);
+            fields |= 2;
+        } else if (len > 5 && !memcmp(line, "Gid:\t", 5)) {
+            *out_gid = atoi(line + 5);
+            fields |= 4;
+        }
+    }
+    fclose(fp);
+    return fields == 7 ? 0 : -1;
+}
+
+static int read_request(int fd, debugger_request_t* out_request) {
     struct ucred cr;
-    int n, len, status;
-    int tid_attach_status = -1;
-    unsigned retry = 30;
-    bool need_cleanup = false;
-
-    char value[PROPERTY_VALUE_MAX];
-    property_get("debug.db.uid", value, "-1");
-    int debug_uid = atoi(value);
-
-    XLOG("handle_crashing_process(%d)\n", fd);
-
-    len = sizeof(cr);
-    n = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cr, &len);
-    if(n != 0) {
+    int len = sizeof(cr);
+    int status = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cr, &len);
+    if (status != 0) {
         LOG("cannot get credentials\n");
-        goto done;
+        return -1;
     }
 
     XLOG("reading tid\n");
     fcntl(fd, F_SETFL, O_NONBLOCK);
-    while((n = read(fd, &tid, sizeof(unsigned))) != sizeof(unsigned)) {
-        if(errno == EINTR) continue;
-        if(errno == EWOULDBLOCK) {
-            if(retry-- > 0) {
-                usleep(100 * 1000);
-                continue;
-            }
-            LOG("timed out reading tid\n");
-            goto done;
-        }
+
+    struct pollfd pollfds[1];
+    pollfds[0].fd = fd;
+    pollfds[0].events = POLLIN;
+    pollfds[0].revents = 0;
+    status = TEMP_FAILURE_RETRY(poll(pollfds, 1, 3000));
+    if (status != 1) {
+        LOG("timed out reading tid\n");
+        return -1;
+    }
+
+    debugger_msg_t msg;
+    status = TEMP_FAILURE_RETRY(read(fd, &msg, sizeof(msg)));
+    if (status < 0) {
         LOG("read failure? %s\n", strerror(errno));
-        goto done;
+        return -1;
+    }
+    if (status != sizeof(msg)) {
+        LOG("invalid crash request of size %d\n", status);
+        return -1;
     }
 
-    snprintf(buf, sizeof buf, "/proc/%d/task/%d", cr.pid, tid);
-    if(stat(buf, &s)) {
-        LOG("tid %d does not exist in pid %d. ignoring debug request\n",
-            tid, cr.pid);
-        close(fd);
-        return;
-    }
+    out_request->action = msg.action;
+    out_request->tid = msg.tid;
+    out_request->pid = cr.pid;
+    out_request->uid = cr.uid;
+    out_request->gid = cr.gid;
 
-    XLOG("BOOM: pid=%d uid=%d gid=%d tid=%d\n", cr.pid, cr.uid, cr.gid, tid);
-
-    /* Note that at this point, the target thread's signal handler
-     * is blocked in a read() call. This gives us the time to PTRACE_ATTACH
-     * to it before it has a chance to really fault.
-     *
-     * The PTRACE_ATTACH sends a SIGSTOP to the target process, but it
-     * won't necessarily have stopped by the time ptrace() returns.  (We
-     * currently assume it does.)  We write to the file descriptor to
-     * ensure that it can run as soon as we call PTRACE_CONT below.
-     * See details in bionic/libc/linker/debugger.c, in function
-     * debugger_signal_handler().
-     */
-    tid_attach_status = ptrace(PTRACE_ATTACH, tid, 0, 0);
-    int ptrace_error = errno;
-
-    if (TEMP_FAILURE_RETRY(write(fd, &tid, 1)) != 1) {
-        XLOG("failed responding to client: %s\n",
-            strerror(errno));
-        goto done;
-    }
-
-    if(tid_attach_status < 0) {
-        LOG("ptrace attach failed: %s\n", strerror(ptrace_error));
-        goto done;
-    }
-
-    close(fd);
-    fd = -1;
-
-    const int sleep_time_usec = 200000;         /* 0.2 seconds */
-    const int max_total_sleep_usec = 3000000;   /* 3 seconds */
-    int loop_limit = max_total_sleep_usec / sleep_time_usec;
-    for(;;) {
-        if (loop_limit-- == 0) {
-            LOG("timed out waiting for pid=%d tid=%d uid=%d to die\n",
-                cr.pid, tid, cr.uid);
-            goto done;
+    if (msg.action == DEBUGGER_ACTION_CRASH) {
+        /* Ensure that the tid reported by the crashing process is valid. */
+        char buf[64];
+        struct stat s;
+        snprintf(buf, sizeof buf, "/proc/%d/task/%d", out_request->pid, out_request->tid);
+        if(stat(buf, &s)) {
+            LOG("tid %d does not exist in pid %d. ignoring debug request\n",
+                    out_request->tid, out_request->pid);
+            return -1;
         }
-        n = waitpid(tid, &status, __WALL | WNOHANG);
-
-        if (n == 0) {
-            /* not ready yet */
-            XLOG("not ready yet\n");
-            usleep(sleep_time_usec);
-            continue;
+    } else if (cr.uid == 0
+            || (cr.uid == AID_SYSTEM && msg.action == DEBUGGER_ACTION_DUMP_BACKTRACE)) {
+        /* Only root or system can ask us to attach to any process and dump it explicitly.
+         * However, system is only allowed to collect backtraces but cannot dump tombstones. */
+        status = get_process_info(out_request->tid, &out_request->pid,
+                &out_request->uid, &out_request->gid);
+        if (status < 0) {
+            LOG("tid %d does not exist. ignoring explicit dump request\n",
+                    out_request->tid);
+            return -1;
         }
-
-        if(n < 0) {
-            if(errno == EAGAIN) continue;
-            LOG("waitpid failed: %s\n", strerror(errno));
-            goto done;
-        }
-
-        XLOG("waitpid: n=%d status=%08x\n", n, status);
-
-        if(WIFSTOPPED(status)){
-            n = WSTOPSIG(status);
-            switch(n) {
-            case SIGSTOP:
-                XLOG("stopped -- continuing\n");
-                n = ptrace(PTRACE_CONT, tid, 0, 0);
-                if(n) {
-                    LOG("ptrace failed: %s\n", strerror(errno));
-                    goto done;
-                }
-                continue;
-
-            case SIGILL:
-            case SIGABRT:
-            case SIGBUS:
-            case SIGFPE:
-            case SIGSEGV:
-            case SIGSTKFLT: {
-                XLOG("stopped -- fatal signal\n");
-                need_cleanup = engrave_tombstone(cr.pid, tid, debug_uid, n);
-                kill(tid, SIGSTOP);
-                goto done;
-            }
-
-            default:
-                XLOG("stopped -- unexpected signal\n");
-                goto done;
-            }
-        } else {
-            XLOG("unexpected waitpid response\n");
-            goto done;
-        }
+    } else {
+        /* No one else is not allowed to dump arbitrary processes. */
+        return -1;
     }
-
-done:
-    XLOG("detaching\n");
-
-    /* stop the process so we can debug */
-    kill(cr.pid, SIGSTOP);
-
-    /*
-     * If a thread has been attached by ptrace, make sure it is detached
-     * successfully otherwise we will get a zombie.
-     */
-    if (tid_attach_status == 0) {
-        int detach_status;
-        /* detach so we can attach gdbserver */
-        detach_status = ptrace(PTRACE_DETACH, tid, 0, 0);
-        need_cleanup |= (detach_status != 0);
-    }
-
-    /*
-     * if debug.db.uid is set, its value indicates if we should wait
-     * for user action for the crashing process.
-     * in this case, we log a message and turn the debug LED on
-     * waiting for a gdb connection (for instance)
-     */
-
-    if ((signed)cr.uid <= debug_uid) {
-        wait_for_user_action(tid, &cr);
-    }
-
-    /*
-     * Resume stopped process (so it can crash in peace).  If we didn't
-     * successfully detach, we're still the parent, and the actual parent
-     * won't receive a death notification via wait(2).  At this point
-     * there's not much we can do about that.
-     */
-    kill(cr.pid, SIGCONT);
-
-    if (need_cleanup) {
-        LOG("debuggerd committing suicide to free the zombie!\n");
-        kill(getpid(), SIGKILL);
-    }
-
-    if(fd != -1) close(fd);
+    return 0;
 }
 
+static bool should_attach_gdb(debugger_request_t* request) {
+    if (request->action == DEBUGGER_ACTION_CRASH) {
+        char value[PROPERTY_VALUE_MAX];
+        property_get("debug.db.uid", value, "-1");
+        int debug_uid = atoi(value);
+        return debug_uid >= 0 && request->uid <= (uid_t)debug_uid;
+    }
+    return false;
+}
 
-int main()
-{
+static void handle_request(int fd) {
+    XLOG("handle_request(%d)\n", fd);
+
+    debugger_request_t request;
+    int status = read_request(fd, &request);
+    if (!status) {
+        XLOG("BOOM: pid=%d uid=%d gid=%d tid=%d\n",
+            request.pid, request.uid, request.gid, request.tid);
+
+        /* At this point, the thread that made the request is blocked in
+         * a read() call.  If the thread has crashed, then this gives us
+         * time to PTRACE_ATTACH to it before it has a chance to really fault.
+         *
+         * The PTRACE_ATTACH sends a SIGSTOP to the target process, but it
+         * won't necessarily have stopped by the time ptrace() returns.  (We
+         * currently assume it does.)  We write to the file descriptor to
+         * ensure that it can run as soon as we call PTRACE_CONT below.
+         * See details in bionic/libc/linker/debugger.c, in function
+         * debugger_signal_handler().
+         */
+        if (ptrace(PTRACE_ATTACH, request.tid, 0, 0)) {
+            LOG("ptrace attach failed: %s\n", strerror(errno));
+        } else {
+            bool detach_failed = false;
+            bool attach_gdb = should_attach_gdb(&request);
+            if (TEMP_FAILURE_RETRY(write(fd, "\0", 1)) != 1) {
+                LOG("failed responding to client: %s\n", strerror(errno));
+            } else {
+                char* tombstone_path = NULL;
+
+                if (request.action == DEBUGGER_ACTION_CRASH) {
+                    close(fd);
+                    fd = -1;
+                }
+
+                int total_sleep_time_usec = 0;
+                for (;;) {
+                    int signal = wait_for_signal(request.tid, &total_sleep_time_usec);
+                    if (signal < 0) {
+                        break;
+                    }
+
+                    switch (signal) {
+                    case SIGSTOP:
+                        if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
+                            XLOG("stopped -- dumping to tombstone\n");
+                            tombstone_path = engrave_tombstone(request.pid, request.tid,
+                                    signal, true, true, &detach_failed,
+                                    &total_sleep_time_usec);
+                        } else if (request.action == DEBUGGER_ACTION_DUMP_BACKTRACE) {
+                            XLOG("stopped -- dumping to fd\n");
+                            dump_backtrace(fd, request.pid, request.tid, &detach_failed,
+                                    &total_sleep_time_usec);
+                        } else {
+                            XLOG("stopped -- continuing\n");
+                            status = ptrace(PTRACE_CONT, request.tid, 0, 0);
+                            if (status) {
+                                LOG("ptrace continue failed: %s\n", strerror(errno));
+                            }
+                            continue; /* loop again */
+                        }
+                        break;
+
+                    case SIGILL:
+                    case SIGABRT:
+                    case SIGBUS:
+                    case SIGFPE:
+                    case SIGSEGV:
+                    case SIGPIPE:
+                    case SIGSTKFLT: {
+                        XLOG("stopped -- fatal signal\n");
+                        /*
+                         * Send a SIGSTOP to the process to make all of
+                         * the non-signaled threads stop moving.  Without
+                         * this we get a lot of "ptrace detach failed:
+                         * No such process".
+                         */
+                        kill(request.pid, SIGSTOP);
+                        /* don't dump sibling threads when attaching to GDB because it
+                         * makes the process less reliable, apparently... */
+                        tombstone_path = engrave_tombstone(request.pid, request.tid,
+                                signal, !attach_gdb, false, &detach_failed,
+                                &total_sleep_time_usec);
+                        break;
+                    }
+
+                    default:
+                        XLOG("stopped -- unexpected signal\n");
+                        LOG("process stopped due to unexpected signal %d\n", signal);
+                        break;
+                    }
+                    break;
+                }
+
+                if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
+                    if (tombstone_path) {
+                        write(fd, tombstone_path, strlen(tombstone_path));
+                    }
+                    close(fd);
+                    fd = -1;
+                }
+                free(tombstone_path);
+            }
+
+            XLOG("detaching\n");
+            if (attach_gdb) {
+                /* stop the process so we can debug */
+                kill(request.pid, SIGSTOP);
+
+                /* detach so we can attach gdbserver */
+                if (ptrace(PTRACE_DETACH, request.tid, 0, 0)) {
+                    LOG("ptrace detach from %d failed: %s\n", request.tid, strerror(errno));
+                    detach_failed = true;
+                }
+
+                /*
+                 * if debug.db.uid is set, its value indicates if we should wait
+                 * for user action for the crashing process.
+                 * in this case, we log a message and turn the debug LED on
+                 * waiting for a gdb connection (for instance)
+                 */
+                wait_for_user_action(request.pid);
+            } else {
+                /* just detach */
+                if (ptrace(PTRACE_DETACH, request.tid, 0, 0)) {
+                    LOG("ptrace detach from %d failed: %s\n", request.tid, strerror(errno));
+                    detach_failed = true;
+                }
+            }
+
+            /* resume stopped process (so it can crash in peace). */
+            kill(request.pid, SIGCONT);
+
+            /* If we didn't successfully detach, we're still the parent, and the
+             * actual parent won't receive a death notification via wait(2).  At this point
+             * there's not much we can do about that. */
+            if (detach_failed) {
+                LOG("debuggerd committing suicide to free the zombie!\n");
+                kill(getpid(), SIGKILL);
+            }
+        }
+
+    }
+    if (fd >= 0) {
+        close(fd);
+    }
+}
+
+static int do_server() {
     int s;
     struct sigaction act;
     int logsocket = -1;
@@ -912,8 +423,8 @@
     signal(SIGBUS, SIG_DFL);
     signal(SIGFPE, SIG_DFL);
     signal(SIGSEGV, SIG_DFL);
-    signal(SIGSTKFLT, SIG_DFL);
     signal(SIGPIPE, SIG_DFL);
+    signal(SIGSTKFLT, SIG_DFL);
 
     logsocket = socket_local_client("logd",
             ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_DGRAM);
@@ -929,9 +440,9 @@
     act.sa_flags = SA_NOCLDWAIT;
     sigaction(SIGCHLD, &act, 0);
 
-    s = socket_local_server("android:debuggerd",
+    s = socket_local_server(DEBUGGER_SOCKET_NAME,
             ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
-    if(s < 0) return -1;
+    if(s < 0) return 1;
     fcntl(s, F_SETFD, FD_CLOEXEC);
 
     LOG("debuggerd: " __DATE__ " " __TIME__ "\n");
@@ -951,7 +462,61 @@
 
         fcntl(fd, F_SETFD, FD_CLOEXEC);
 
-        handle_crashing_process(fd);
+        handle_request(fd);
     }
     return 0;
 }
+
+static int do_explicit_dump(pid_t tid, bool dump_backtrace) {
+    fprintf(stdout, "Sending request to dump task %d.\n", tid);
+
+    if (dump_backtrace) {
+        fflush(stdout);
+        if (dump_backtrace_to_file(tid, fileno(stdout)) < 0) {
+            fputs("Error dumping backtrace.\n", stderr);
+            return 1;
+        }
+    } else {
+        char tombstone_path[PATH_MAX];
+        if (dump_tombstone(tid, tombstone_path, sizeof(tombstone_path)) < 0) {
+            fputs("Error dumping tombstone.\n", stderr);
+            return 1;
+        }
+        fprintf(stderr, "Tombstone written to: %s\n", tombstone_path);
+    }
+    return 0;
+}
+
+static void usage() {
+    fputs("Usage: -b [<tid>]\n"
+            "  -b dump backtrace to console, otherwise dump full tombstone file\n"
+            "\n"
+            "If tid specified, sends a request to debuggerd to dump that task.\n"
+            "Otherwise, starts the debuggerd server.\n", stderr);
+}
+
+int main(int argc, char** argv) {
+    if (argc == 1) {
+        return do_server();
+    }
+
+    bool dump_backtrace = false;
+    bool have_tid = false;
+    pid_t tid = 0;
+    for (int i = 1; i < argc; i++) {
+        if (!strcmp(argv[i], "-b")) {
+            dump_backtrace = true;
+        } else if (!have_tid) {
+            tid = atoi(argv[i]);
+            have_tid = true;
+        } else {
+            usage();
+            return 1;
+        }
+    }
+    if (!have_tid) {
+        usage();
+        return 1;
+    }
+    return do_explicit_dump(tid, dump_backtrace);
+}
diff --git a/debuggerd/debuggerd.h b/debuggerd/debuggerd.h
deleted file mode 100644
index e3cdc7c..0000000
--- a/debuggerd/debuggerd.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* system/debuggerd/debuggerd.h
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include <cutils/logd.h>
-#include <sys/ptrace.h>
-#include <unwind.h>
-#include "utility.h"
-#include "symbol_table.h"
-
-
-/* Main entry point to get the backtrace from the crashing process */
-extern int unwind_backtrace_with_ptrace(int tfd, pid_t pid, mapinfo *map,
-                                        unsigned int sp_list[],
-                                        int *frame0_pc_sane,
-                                        bool at_fault);
-
-extern void dump_registers(int tfd, int pid, bool at_fault);
-
-extern int unwind_backtrace_with_ptrace_x86(int tfd, pid_t pid, mapinfo *map, bool at_fault);
-
-void dump_pc_and_lr(int tfd, int pid, mapinfo *map, int unwound_level, bool at_fault);
-
-void dump_stack_and_code(int tfd, int pid, mapinfo *map,
-                         int unwind_depth, unsigned int sp_list[],
-                         bool at_fault);
diff --git a/nexus/NexusCommand.cpp b/debuggerd/getevent.h
similarity index 69%
copy from nexus/NexusCommand.cpp
copy to debuggerd/getevent.h
index 541eeeb..426139d 100644
--- a/nexus/NexusCommand.cpp
+++ b/debuggerd/getevent.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,8 +14,11 @@
  * limitations under the License.
  */
 
-#include "NexusCommand.h"
+#ifndef _DEBUGGERD_GETEVENT_H
+#define _DEBUGGERD_GETEVENT_H
 
-NexusCommand::NexusCommand(const char *cmd) :
-              FrameworkCommand(cmd)  {
-}
+int init_getevent();
+void uninit_getevent();
+int get_event(struct input_event* event, int timeout);
+
+#endif // _DEBUGGERD_GETEVENT_H
diff --git a/debuggerd/machine.h b/debuggerd/machine.h
new file mode 100644
index 0000000..1619dd3
--- /dev/null
+++ b/debuggerd/machine.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _DEBUGGERD_MACHINE_H
+#define _DEBUGGERD_MACHINE_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include <corkscrew/ptrace.h>
+
+#include "utility.h"
+
+void dump_memory_and_code(const ptrace_context_t* context, log_t* log, pid_t tid, bool at_fault);
+void dump_registers(const ptrace_context_t* context, log_t* log, pid_t tid, bool at_fault);
+
+#endif // _DEBUGGERD_MACHINE_H
diff --git a/debuggerd/symbol_table.c b/debuggerd/symbol_table.c
deleted file mode 100644
index 23572a3..0000000
--- a/debuggerd/symbol_table.c
+++ /dev/null
@@ -1,240 +0,0 @@
-#include <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-
-#include "symbol_table.h"
-#include "utility.h"
-
-#include <linux/elf.h>
-
-// Compare func for qsort
-static int qcompar(const void *a, const void *b)
-{
-    return ((struct symbol*)a)->addr - ((struct symbol*)b)->addr;
-}
-
-// Compare func for bsearch
-static int bcompar(const void *addr, const void *element)
-{
-    struct symbol *symbol = (struct symbol*)element;
-
-    if((unsigned int)addr < symbol->addr) {
-        return -1;
-    }
-
-    if((unsigned int)addr - symbol->addr >= symbol->size) {
-        return 1;
-    }
-
-    return 0;
-}
-
-/*
- *  Create a symbol table from a given file
- *
- *  Parameters:
- *      filename - Filename to process
- *
- *  Returns:
- *      A newly-allocated SymbolTable structure, or NULL if error.
- *      Free symbol table with symbol_table_free()
- */
-struct symbol_table *symbol_table_create(const char *filename)
-{
-    struct symbol_table *table = NULL;
-
-    // Open the file, and map it into memory
-    struct stat sb;
-    int length;
-    char *base;
-
-    XLOG2("Creating symbol table for %s\n", filename);
-    int fd = open(filename, O_RDONLY);
-
-    if(fd < 0) {
-        goto out;
-    }
-
-    fstat(fd, &sb);
-    length = sb.st_size;
-
-    base = mmap(NULL, length, PROT_READ, MAP_PRIVATE, fd, 0);
-
-    if(!base) {
-        goto out_close;
-    }
-
-    // Parse the file header
-    Elf32_Ehdr *hdr = (Elf32_Ehdr*)base;
-    Elf32_Shdr *shdr = (Elf32_Shdr*)(base + hdr->e_shoff);
-
-    // Search for the dynamic symbols section
-    int sym_idx = -1;
-    int dynsym_idx = -1;
-    int i;
-
-    for(i = 0; i < hdr->e_shnum; i++) {
-        if(shdr[i].sh_type == SHT_SYMTAB ) {
-            sym_idx = i;
-        }
-        if(shdr[i].sh_type == SHT_DYNSYM ) {
-            dynsym_idx = i;
-        }
-    }
-    if ((dynsym_idx == -1) && (sym_idx == -1)) {
-        goto out_unmap;
-    }
-
-    table = malloc(sizeof(struct symbol_table));
-    if(!table) {
-        goto out_unmap;
-    }
-    table->name = strdup(filename);
-    table->num_symbols = 0;
-
-    Elf32_Sym *dynsyms = NULL;
-    Elf32_Sym *syms = NULL;
-    int dynnumsyms = 0;
-    int numsyms = 0;
-    char *dynstr = NULL;
-    char *str = NULL;
-
-    if (dynsym_idx != -1) {
-        dynsyms = (Elf32_Sym*)(base + shdr[dynsym_idx].sh_offset);
-        dynnumsyms = shdr[dynsym_idx].sh_size / shdr[dynsym_idx].sh_entsize;
-        int dynstr_idx = shdr[dynsym_idx].sh_link;
-        dynstr = base + shdr[dynstr_idx].sh_offset;
-    }
-
-    if (sym_idx != -1) {
-        syms = (Elf32_Sym*)(base + shdr[sym_idx].sh_offset);
-        numsyms = shdr[sym_idx].sh_size / shdr[sym_idx].sh_entsize;
-        int str_idx = shdr[sym_idx].sh_link;
-        str = base + shdr[str_idx].sh_offset;
-    }
-
-    int symbol_count = 0;
-    int dynsymbol_count = 0;
-
-    if (dynsym_idx != -1) {
-        // Iterate through the dynamic symbol table, and count how many symbols
-        // are actually defined
-        for(i = 0; i < dynnumsyms; i++) {
-            if(dynsyms[i].st_shndx != SHN_UNDEF) {
-                dynsymbol_count++;
-            }
-        }
-        XLOG2("Dynamic Symbol count: %d\n", dynsymbol_count);
-    }
-
-    if (sym_idx != -1) {
-        // Iterate through the symbol table, and count how many symbols
-        // are actually defined
-        for(i = 0; i < numsyms; i++) {
-            if((syms[i].st_shndx != SHN_UNDEF) &&
-                (strlen(str+syms[i].st_name)) &&
-                (syms[i].st_value != 0) && (syms[i].st_size != 0)) {
-                symbol_count++;
-            }
-        }
-        XLOG2("Symbol count: %d\n", symbol_count);
-    }
-
-    // Now, create an entry in our symbol table structure for each symbol...
-    table->num_symbols += symbol_count + dynsymbol_count;
-    table->symbols = malloc(table->num_symbols * sizeof(struct symbol));
-    if(!table->symbols) {
-        free(table);
-        table = NULL;
-        goto out_unmap;
-    }
-
-
-    int j = 0;
-    if (dynsym_idx != -1) {
-        // ...and populate them
-        for(i = 0; i < dynnumsyms; i++) {
-            if(dynsyms[i].st_shndx != SHN_UNDEF) {
-                table->symbols[j].name = strdup(dynstr + dynsyms[i].st_name);
-                table->symbols[j].addr = dynsyms[i].st_value;
-                table->symbols[j].size = dynsyms[i].st_size;
-                XLOG2("name: %s, addr: %x, size: %x\n",
-                    table->symbols[j].name, table->symbols[j].addr, table->symbols[j].size);
-                j++;
-            }
-        }
-    }
-
-    if (sym_idx != -1) {
-        // ...and populate them
-        for(i = 0; i < numsyms; i++) {
-            if((syms[i].st_shndx != SHN_UNDEF) &&
-                (strlen(str+syms[i].st_name)) &&
-                (syms[i].st_value != 0) && (syms[i].st_size != 0)) {
-                table->symbols[j].name = strdup(str + syms[i].st_name);
-                table->symbols[j].addr = syms[i].st_value;
-                table->symbols[j].size = syms[i].st_size;
-                XLOG2("name: %s, addr: %x, size: %x\n",
-                    table->symbols[j].name, table->symbols[j].addr, table->symbols[j].size);
-                j++;
-            }
-        }
-    }
-
-    // Sort the symbol table entries, so they can be bsearched later
-    qsort(table->symbols, table->num_symbols, sizeof(struct symbol), qcompar);
-
-out_unmap:
-    munmap(base, length);
-
-out_close:
-    close(fd);
-
-out:
-    return table;
-}
-
-/*
- * Free a symbol table
- *
- * Parameters:
- *     table - Table to free
- */
-void symbol_table_free(struct symbol_table *table)
-{
-    int i;
-
-    if(!table) {
-        return;
-    }
-
-    for(i=0; i<table->num_symbols; i++) {
-        free(table->symbols[i].name);
-    }
-
-    free(table->symbols);
-    free(table);
-}
-
-/*
- * Search for an address in the symbol table
- *
- * Parameters:
- *      table - Table to search in
- *      addr - Address to search for.
- *
- * Returns:
- *      A pointer to the Symbol structure corresponding to the
- *      symbol which contains this address, or NULL if no symbol
- *      contains it.
- */
-const struct symbol *symbol_table_lookup(struct symbol_table *table, unsigned int addr)
-{
-    if(!table) {
-        return NULL;
-    }
-
-    return bsearch((void*)addr, table->symbols, table->num_symbols, sizeof(struct symbol), bcompar);
-}
diff --git a/debuggerd/symbol_table.h b/debuggerd/symbol_table.h
deleted file mode 100644
index 7f41f91..0000000
--- a/debuggerd/symbol_table.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef SYMBOL_TABLE_H
-#define SYMBOL_TABLE_H
-
-struct symbol {
-    unsigned int addr;
-    unsigned int size;
-    char *name;
-};
-
-struct symbol_table {
-    struct symbol *symbols;
-    int num_symbols;
-    char *name;
-};
-
-struct symbol_table *symbol_table_create(const char *filename);
-void symbol_table_free(struct symbol_table *table);
-const struct symbol *symbol_table_lookup(struct symbol_table *table, unsigned int addr);
-
-#endif
diff --git a/debuggerd/tombstone.c b/debuggerd/tombstone.c
new file mode 100644
index 0000000..27ab3fe
--- /dev/null
+++ b/debuggerd/tombstone.c
@@ -0,0 +1,709 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <time.h>
+#include <sys/ptrace.h>
+#include <sys/stat.h>
+
+#include <private/android_filesystem_config.h>
+
+#include <cutils/logger.h>
+#include <cutils/properties.h>
+
+#include <corkscrew/demangle.h>
+#include <corkscrew/backtrace.h>
+
+#ifdef HAVE_SELINUX
+#include <selinux/android.h>
+#endif
+
+#include "machine.h"
+#include "tombstone.h"
+#include "utility.h"
+
+#define STACK_DEPTH 32
+#define STACK_WORDS 16
+
+#define MAX_TOMBSTONES  10
+#define TOMBSTONE_DIR   "/data/tombstones"
+
+#define typecheck(x,y) {    \
+    typeof(x) __dummy1;     \
+    typeof(y) __dummy2;     \
+    (void)(&__dummy1 == &__dummy2); }
+
+
+static bool signal_has_address(int sig) {
+    switch (sig) {
+        case SIGILL:
+        case SIGFPE:
+        case SIGSEGV:
+        case SIGBUS:
+            return true;
+        default:
+            return false;
+    }
+}
+
+static const char *get_signame(int sig)
+{
+    switch(sig) {
+    case SIGILL:     return "SIGILL";
+    case SIGABRT:    return "SIGABRT";
+    case SIGBUS:     return "SIGBUS";
+    case SIGFPE:     return "SIGFPE";
+    case SIGSEGV:    return "SIGSEGV";
+    case SIGPIPE:    return "SIGPIPE";
+    case SIGSTKFLT:  return "SIGSTKFLT";
+    case SIGSTOP:    return "SIGSTOP";
+    default:         return "?";
+    }
+}
+
+static const char *get_sigcode(int signo, int code)
+{
+    switch (signo) {
+    case SIGILL:
+        switch (code) {
+        case ILL_ILLOPC: return "ILL_ILLOPC";
+        case ILL_ILLOPN: return "ILL_ILLOPN";
+        case ILL_ILLADR: return "ILL_ILLADR";
+        case ILL_ILLTRP: return "ILL_ILLTRP";
+        case ILL_PRVOPC: return "ILL_PRVOPC";
+        case ILL_PRVREG: return "ILL_PRVREG";
+        case ILL_COPROC: return "ILL_COPROC";
+        case ILL_BADSTK: return "ILL_BADSTK";
+        }
+        break;
+    case SIGBUS:
+        switch (code) {
+        case BUS_ADRALN: return "BUS_ADRALN";
+        case BUS_ADRERR: return "BUS_ADRERR";
+        case BUS_OBJERR: return "BUS_OBJERR";
+        }
+        break;
+    case SIGFPE:
+        switch (code) {
+        case FPE_INTDIV: return "FPE_INTDIV";
+        case FPE_INTOVF: return "FPE_INTOVF";
+        case FPE_FLTDIV: return "FPE_FLTDIV";
+        case FPE_FLTOVF: return "FPE_FLTOVF";
+        case FPE_FLTUND: return "FPE_FLTUND";
+        case FPE_FLTRES: return "FPE_FLTRES";
+        case FPE_FLTINV: return "FPE_FLTINV";
+        case FPE_FLTSUB: return "FPE_FLTSUB";
+        }
+        break;
+    case SIGSEGV:
+        switch (code) {
+        case SEGV_MAPERR: return "SEGV_MAPERR";
+        case SEGV_ACCERR: return "SEGV_ACCERR";
+        }
+        break;
+    }
+    return "?";
+}
+
+static void dump_build_info(log_t* log)
+{
+    char fingerprint[PROPERTY_VALUE_MAX];
+
+    property_get("ro.build.fingerprint", fingerprint, "unknown");
+
+    _LOG(log, false, "Build fingerprint: '%s'\n", fingerprint);
+}
+
+static void dump_fault_addr(log_t* log, pid_t tid, int sig)
+{
+    siginfo_t si;
+
+    memset(&si, 0, sizeof(si));
+    if(ptrace(PTRACE_GETSIGINFO, tid, 0, &si)){
+        _LOG(log, false, "cannot get siginfo: %s\n", strerror(errno));
+    } else if (signal_has_address(sig)) {
+        _LOG(log, false, "signal %d (%s), code %d (%s), fault addr %08x\n",
+             sig, get_signame(sig),
+             si.si_code, get_sigcode(sig, si.si_code),
+             (uintptr_t) si.si_addr);
+    } else {
+        _LOG(log, false, "signal %d (%s), code %d (%s), fault addr --------\n",
+             sig, get_signame(sig), si.si_code, get_sigcode(sig, si.si_code));
+    }
+}
+
+static void dump_thread_info(log_t* log, pid_t pid, pid_t tid, bool at_fault) {
+    char path[64];
+    char threadnamebuf[1024];
+    char* threadname = NULL;
+    FILE *fp;
+
+    snprintf(path, sizeof(path), "/proc/%d/comm", tid);
+    if ((fp = fopen(path, "r"))) {
+        threadname = fgets(threadnamebuf, sizeof(threadnamebuf), fp);
+        fclose(fp);
+        if (threadname) {
+            size_t len = strlen(threadname);
+            if (len && threadname[len - 1] == '\n') {
+                threadname[len - 1] = '\0';
+            }
+        }
+    }
+
+    if (at_fault) {
+        char procnamebuf[1024];
+        char* procname = NULL;
+
+        snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
+        if ((fp = fopen(path, "r"))) {
+            procname = fgets(procnamebuf, sizeof(procnamebuf), fp);
+            fclose(fp);
+        }
+
+        _LOG(log, false, "pid: %d, tid: %d, name: %s  >>> %s <<<\n", pid, tid,
+                threadname ? threadname : "UNKNOWN",
+                procname ? procname : "UNKNOWN");
+    } else {
+        _LOG(log, true, "pid: %d, tid: %d, name: %s\n", pid, tid,
+                threadname ? threadname : "UNKNOWN");
+    }
+}
+
+static void dump_backtrace(const ptrace_context_t* context __attribute((unused)),
+        log_t* log, pid_t tid __attribute((unused)), bool at_fault,
+        const backtrace_frame_t* backtrace, size_t frames) {
+    _LOG(log, !at_fault, "\nbacktrace:\n");
+
+    backtrace_symbol_t backtrace_symbols[STACK_DEPTH];
+    get_backtrace_symbols_ptrace(context, backtrace, frames, backtrace_symbols);
+    for (size_t i = 0; i < frames; i++) {
+        char line[MAX_BACKTRACE_LINE_LENGTH];
+        format_backtrace_line(i, &backtrace[i], &backtrace_symbols[i],
+                line, MAX_BACKTRACE_LINE_LENGTH);
+        _LOG(log, !at_fault, "    %s\n", line);
+    }
+    free_backtrace_symbols(backtrace_symbols, frames);
+}
+
+static void dump_stack_segment(const ptrace_context_t* context, log_t* log, pid_t tid,
+        bool only_in_tombstone, uintptr_t* sp, size_t words, int label) {
+    for (size_t i = 0; i < words; i++) {
+        uint32_t stack_content;
+        if (!try_get_word_ptrace(tid, *sp, &stack_content)) {
+            break;
+        }
+
+        const map_info_t* mi;
+        const symbol_t* symbol;
+        find_symbol_ptrace(context, stack_content, &mi, &symbol);
+
+        if (symbol) {
+            char* demangled_name = demangle_symbol_name(symbol->name);
+            const char* symbol_name = demangled_name ? demangled_name : symbol->name;
+            uint32_t offset = stack_content - (mi->start + symbol->start);
+            if (!i && label >= 0) {
+                if (offset) {
+                    _LOG(log, only_in_tombstone, "    #%02d  %08x  %08x  %s (%s+%u)\n",
+                            label, *sp, stack_content, mi ? mi->name : "", symbol_name, offset);
+                } else {
+                    _LOG(log, only_in_tombstone, "    #%02d  %08x  %08x  %s (%s)\n",
+                            label, *sp, stack_content, mi ? mi->name : "", symbol_name);
+                }
+            } else {
+                if (offset) {
+                    _LOG(log, only_in_tombstone, "         %08x  %08x  %s (%s+%u)\n",
+                            *sp, stack_content, mi ? mi->name : "", symbol_name, offset);
+                } else {
+                    _LOG(log, only_in_tombstone, "         %08x  %08x  %s (%s)\n",
+                            *sp, stack_content, mi ? mi->name : "", symbol_name);
+                }
+            }
+            free(demangled_name);
+        } else {
+            if (!i && label >= 0) {
+                _LOG(log, only_in_tombstone, "    #%02d  %08x  %08x  %s\n",
+                        label, *sp, stack_content, mi ? mi->name : "");
+            } else {
+                _LOG(log, only_in_tombstone, "         %08x  %08x  %s\n",
+                        *sp, stack_content, mi ? mi->name : "");
+            }
+        }
+
+        *sp += sizeof(uint32_t);
+    }
+}
+
+static void dump_stack(const ptrace_context_t* context, log_t* log, pid_t tid, bool at_fault,
+        const backtrace_frame_t* backtrace, size_t frames) {
+    bool have_first = false;
+    size_t first, last;
+    for (size_t i = 0; i < frames; i++) {
+        if (backtrace[i].stack_top) {
+            if (!have_first) {
+                have_first = true;
+                first = i;
+            }
+            last = i;
+        }
+    }
+    if (!have_first) {
+        return;
+    }
+
+    _LOG(log, !at_fault, "\nstack:\n");
+
+    // Dump a few words before the first frame.
+    bool only_in_tombstone = !at_fault;
+    uintptr_t sp = backtrace[first].stack_top - STACK_WORDS * sizeof(uint32_t);
+    dump_stack_segment(context, log, tid, only_in_tombstone, &sp, STACK_WORDS, -1);
+
+    // Dump a few words from all successive frames.
+    // Only log the first 3 frames, put the rest in the tombstone.
+    for (size_t i = first; i <= last; i++) {
+        const backtrace_frame_t* frame = &backtrace[i];
+        if (sp != frame->stack_top) {
+            _LOG(log, only_in_tombstone, "         ........  ........\n");
+            sp = frame->stack_top;
+        }
+        if (i - first == 3) {
+            only_in_tombstone = true;
+        }
+        if (i == last) {
+            dump_stack_segment(context, log, tid, only_in_tombstone, &sp, STACK_WORDS, i);
+            if (sp < frame->stack_top + frame->stack_size) {
+                _LOG(log, only_in_tombstone, "         ........  ........\n");
+            }
+        } else {
+            size_t words = frame->stack_size / sizeof(uint32_t);
+            if (words == 0) {
+                words = 1;
+            } else if (words > STACK_WORDS) {
+                words = STACK_WORDS;
+            }
+            dump_stack_segment(context, log, tid, only_in_tombstone, &sp, words, i);
+        }
+    }
+}
+
+static void dump_backtrace_and_stack(const ptrace_context_t* context, log_t* log, pid_t tid,
+        bool at_fault) {
+    backtrace_frame_t backtrace[STACK_DEPTH];
+    ssize_t frames = unwind_backtrace_ptrace(tid, context, backtrace, 0, STACK_DEPTH);
+    if (frames > 0) {
+        dump_backtrace(context, log, tid, at_fault, backtrace, frames);
+        dump_stack(context, log, tid, at_fault, backtrace, frames);
+    }
+}
+
+static void dump_nearby_maps(const ptrace_context_t* context, log_t* log, pid_t tid) {
+    siginfo_t si;
+    memset(&si, 0, sizeof(si));
+    if (ptrace(PTRACE_GETSIGINFO, tid, 0, &si)) {
+        _LOG(log, false, "cannot get siginfo for %d: %s\n",
+                tid, strerror(errno));
+        return;
+    }
+    if (!signal_has_address(si.si_signo)) {
+        return;
+    }
+
+    uintptr_t addr = (uintptr_t) si.si_addr;
+    addr &= ~0xfff;     /* round to 4K page boundary */
+    if (addr == 0) {    /* null-pointer deref */
+        return;
+    }
+
+    _LOG(log, false, "\nmemory map around fault addr %08x:\n", (int)si.si_addr);
+
+    /*
+     * Search for a match, or for a hole where the match would be.  The list
+     * is backward from the file content, so it starts at high addresses.
+     */
+    map_info_t* map = context->map_info_list;
+    map_info_t *next = NULL;
+    map_info_t *prev = NULL;
+    while (map != NULL) {
+        if (addr >= map->start && addr < map->end) {
+            next = map->next;
+            break;
+        } else if (addr >= map->end) {
+            /* map would be between "prev" and this entry */
+            next = map;
+            map = NULL;
+            break;
+        }
+
+        prev = map;
+        map = map->next;
+    }
+
+    /*
+     * Show "next" then "match" then "prev" so that the addresses appear in
+     * ascending order (like /proc/pid/maps).
+     */
+    if (next != NULL) {
+        _LOG(log, false, "    %08x-%08x %s\n", next->start, next->end, next->name);
+    } else {
+        _LOG(log, false, "    (no map below)\n");
+    }
+    if (map != NULL) {
+        _LOG(log, false, "    %08x-%08x %s\n", map->start, map->end, map->name);
+    } else {
+        _LOG(log, false, "    (no map for address)\n");
+    }
+    if (prev != NULL) {
+        _LOG(log, false, "    %08x-%08x %s\n", prev->start, prev->end, prev->name);
+    } else {
+        _LOG(log, false, "    (no map above)\n");
+    }
+}
+
+static void dump_thread(const ptrace_context_t* context, log_t* log, pid_t tid, bool at_fault,
+        int* total_sleep_time_usec) {
+    wait_for_stop(tid, total_sleep_time_usec);
+
+    dump_registers(context, log, tid, at_fault);
+    dump_backtrace_and_stack(context, log, tid, at_fault);
+    if (at_fault) {
+        dump_memory_and_code(context, log, tid, at_fault);
+        dump_nearby_maps(context, log, tid);
+    }
+}
+
+/* Return true if some thread is not detached cleanly */
+static bool dump_sibling_thread_report(const ptrace_context_t* context,
+        log_t* log, pid_t pid, pid_t tid, int* total_sleep_time_usec) {
+    char task_path[64];
+    snprintf(task_path, sizeof(task_path), "/proc/%d/task", pid);
+
+    DIR* d = opendir(task_path);
+    /* Bail early if cannot open the task directory */
+    if (d == NULL) {
+        XLOG("Cannot open /proc/%d/task\n", pid);
+        return false;
+    }
+
+    bool detach_failed = false;
+    struct dirent debuf;
+    struct dirent *de;
+    while (!readdir_r(d, &debuf, &de) && de) {
+        /* Ignore "." and ".." */
+        if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..")) {
+            continue;
+        }
+
+        /* The main thread at fault has been handled individually */
+        char* end;
+        pid_t new_tid = strtoul(de->d_name, &end, 10);
+        if (*end || new_tid == tid) {
+            continue;
+        }
+
+        /* Skip this thread if cannot ptrace it */
+        if (ptrace(PTRACE_ATTACH, new_tid, 0, 0) < 0) {
+            continue;
+        }
+
+        _LOG(log, true, "--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---\n");
+        dump_thread_info(log, pid, new_tid, false);
+        dump_thread(context, log, new_tid, false, total_sleep_time_usec);
+
+        if (ptrace(PTRACE_DETACH, new_tid, 0, 0) != 0) {
+            LOG("ptrace detach from %d failed: %s\n", new_tid, strerror(errno));
+            detach_failed = true;
+        }
+    }
+
+    closedir(d);
+    return detach_failed;
+}
+
+/*
+ * Reads the contents of the specified log device, filters out the entries
+ * that don't match the specified pid, and writes them to the tombstone file.
+ *
+ * If "tailOnly" is set, we only print the last few lines.
+ */
+static void dump_log_file(log_t* log, pid_t pid, const char* filename,
+    bool tailOnly)
+{
+    bool first = true;
+
+    /* circular buffer, for "tailOnly" mode */
+    const int kShortLogMaxLines = 5;
+    const int kShortLogLineLen = 256;
+    char shortLog[kShortLogMaxLines][kShortLogLineLen];
+    int shortLogCount = 0;
+    int shortLogNext = 0;
+
+    int logfd = open(filename, O_RDONLY | O_NONBLOCK);
+    if (logfd < 0) {
+        XLOG("Unable to open %s: %s\n", filename, strerror(errno));
+        return;
+    }
+
+    union {
+        unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1];
+        struct logger_entry entry;
+    } log_entry;
+
+    while (true) {
+        ssize_t actual = read(logfd, log_entry.buf, LOGGER_ENTRY_MAX_LEN);
+        if (actual < 0) {
+            if (errno == EINTR) {
+                /* interrupted by signal, retry */
+                continue;
+            } else if (errno == EAGAIN) {
+                /* non-blocking EOF; we're done */
+                break;
+            } else {
+                _LOG(log, true, "Error while reading log: %s\n",
+                    strerror(errno));
+                break;
+            }
+        } else if (actual == 0) {
+            _LOG(log, true, "Got zero bytes while reading log: %s\n",
+                strerror(errno));
+            break;
+        }
+
+        /*
+         * NOTE: if you XLOG something here, this will spin forever,
+         * because you will be writing as fast as you're reading.  Any
+         * high-frequency debug diagnostics should just be written to
+         * the tombstone file.
+         */
+
+        struct logger_entry* entry = &log_entry.entry;
+
+        if (entry->pid != (int32_t) pid) {
+            /* wrong pid, ignore */
+            continue;
+        }
+
+        if (first) {
+            _LOG(log, true, "--------- %slog %s\n",
+                tailOnly ? "tail end of " : "", filename);
+            first = false;
+        }
+
+        /*
+         * Msg format is: <priority:1><tag:N>\0<message:N>\0
+         *
+         * We want to display it in the same format as "logcat -v threadtime"
+         * (although in this case the pid is redundant).
+         *
+         * TODO: scan for line breaks ('\n') and display each text line
+         * on a separate line, prefixed with the header, like logcat does.
+         */
+        static const char* kPrioChars = "!.VDIWEFS";
+        unsigned char prio = entry->msg[0];
+        char* tag = entry->msg + 1;
+        char* msg = tag + strlen(tag) + 1;
+
+        /* consume any trailing newlines */
+        char* eatnl = msg + strlen(msg) - 1;
+        while (eatnl >= msg && *eatnl == '\n') {
+            *eatnl-- = '\0';
+        }
+
+        char prioChar = (prio < strlen(kPrioChars) ? kPrioChars[prio] : '?');
+
+        char timeBuf[32];
+        time_t sec = (time_t) entry->sec;
+        struct tm tmBuf;
+        struct tm* ptm;
+        ptm = localtime_r(&sec, &tmBuf);
+        strftime(timeBuf, sizeof(timeBuf), "%m-%d %H:%M:%S", ptm);
+
+        if (tailOnly) {
+            snprintf(shortLog[shortLogNext], kShortLogLineLen,
+                "%s.%03d %5d %5d %c %-8s: %s",
+                timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
+                prioChar, tag, msg);
+            shortLogNext = (shortLogNext + 1) % kShortLogMaxLines;
+            shortLogCount++;
+        } else {
+            _LOG(log, true, "%s.%03d %5d %5d %c %-8s: %s\n",
+                timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
+                prioChar, tag, msg);
+        }
+    }
+
+    if (tailOnly) {
+        int i;
+
+        /*
+         * If we filled the buffer, we want to start at "next", which has
+         * the oldest entry.  If we didn't, we want to start at zero.
+         */
+        if (shortLogCount < kShortLogMaxLines) {
+            shortLogNext = 0;
+        } else {
+            shortLogCount = kShortLogMaxLines;  /* cap at window size */
+        }
+
+        for (i = 0; i < shortLogCount; i++) {
+            _LOG(log, true, "%s\n", shortLog[shortLogNext]);
+            shortLogNext = (shortLogNext + 1) % kShortLogMaxLines;
+        }
+    }
+
+    close(logfd);
+}
+
+/*
+ * Dumps the logs generated by the specified pid to the tombstone, from both
+ * "system" and "main" log devices.  Ideally we'd interleave the output.
+ */
+static void dump_logs(log_t* log, pid_t pid, bool tailOnly)
+{
+    dump_log_file(log, pid, "/dev/log/system", tailOnly);
+    dump_log_file(log, pid, "/dev/log/main", tailOnly);
+}
+
+/*
+ * Dumps all information about the specified pid to the tombstone.
+ */
+static bool dump_crash(log_t* log, pid_t pid, pid_t tid, int signal,
+        bool dump_sibling_threads, int* total_sleep_time_usec)
+{
+    /* don't copy log messages to tombstone unless this is a dev device */
+    char value[PROPERTY_VALUE_MAX];
+    property_get("ro.debuggable", value, "0");
+    bool want_logs = (value[0] == '1');
+
+    _LOG(log, false,
+            "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\n");
+    dump_build_info(log);
+    dump_thread_info(log, pid, tid, true);
+    if(signal) {
+        dump_fault_addr(log, tid, signal);
+    }
+
+    ptrace_context_t* context = load_ptrace_context(tid);
+    dump_thread(context, log, tid, true, total_sleep_time_usec);
+
+    if (want_logs) {
+        dump_logs(log, pid, true);
+    }
+
+    bool detach_failed = false;
+    if (dump_sibling_threads) {
+        detach_failed = dump_sibling_thread_report(context, log, pid, tid, total_sleep_time_usec);
+    }
+
+    free_ptrace_context(context);
+
+    if (want_logs) {
+        dump_logs(log, pid, false);
+    }
+    return detach_failed;
+}
+
+/*
+ * find_and_open_tombstone - find an available tombstone slot, if any, of the
+ * form tombstone_XX where XX is 00 to MAX_TOMBSTONES-1, inclusive. If no
+ * file is available, we reuse the least-recently-modified file.
+ *
+ * Returns the path of the tombstone file, allocated using malloc().  Caller must free() it.
+ */
+static char* find_and_open_tombstone(int* fd)
+{
+    unsigned long mtime = ULONG_MAX;
+    struct stat sb;
+
+    /*
+     * XXX: Our stat.st_mtime isn't time_t. If it changes, as it probably ought
+     * to, our logic breaks. This check will generate a warning if that happens.
+     */
+    typecheck(mtime, sb.st_mtime);
+
+    /*
+     * In a single wolf-like pass, find an available slot and, in case none
+     * exist, find and record the least-recently-modified file.
+     */
+    char path[128];
+    int oldest = 0;
+    for (int i = 0; i < MAX_TOMBSTONES; i++) {
+        snprintf(path, sizeof(path), TOMBSTONE_DIR"/tombstone_%02d", i);
+
+        if (!stat(path, &sb)) {
+            if (sb.st_mtime < mtime) {
+                oldest = i;
+                mtime = sb.st_mtime;
+            }
+            continue;
+        }
+        if (errno != ENOENT)
+            continue;
+
+        *fd = open(path, O_CREAT | O_EXCL | O_WRONLY, 0600);
+        if (*fd < 0)
+            continue;   /* raced ? */
+
+        fchown(*fd, AID_SYSTEM, AID_SYSTEM);
+        return strdup(path);
+    }
+
+    /* we didn't find an available file, so we clobber the oldest one */
+    snprintf(path, sizeof(path), TOMBSTONE_DIR"/tombstone_%02d", oldest);
+    *fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
+    if (*fd < 0) {
+        LOG("failed to open tombstone file '%s': %s\n", path, strerror(errno));
+        return NULL;
+    }
+    fchown(*fd, AID_SYSTEM, AID_SYSTEM);
+    return strdup(path);
+}
+
+char* engrave_tombstone(pid_t pid, pid_t tid, int signal,
+        bool dump_sibling_threads, bool quiet, bool* detach_failed,
+        int* total_sleep_time_usec) {
+    mkdir(TOMBSTONE_DIR, 0755);
+    chown(TOMBSTONE_DIR, AID_SYSTEM, AID_SYSTEM);
+
+#ifdef HAVE_SELINUX
+    if (selinux_android_restorecon(TOMBSTONE_DIR) == -1) {
+        *detach_failed = false;
+        return NULL;
+    }
+#endif
+
+    int fd;
+    char* path = find_and_open_tombstone(&fd);
+    if (!path) {
+        *detach_failed = false;
+        return NULL;
+    }
+
+    log_t log;
+    log.tfd = fd;
+    log.quiet = quiet;
+    *detach_failed = dump_crash(&log, pid, tid, signal, dump_sibling_threads,
+            total_sleep_time_usec);
+
+    close(fd);
+    return path;
+}
diff --git a/debuggerd/tombstone.h b/debuggerd/tombstone.h
new file mode 100644
index 0000000..edcd7b1
--- /dev/null
+++ b/debuggerd/tombstone.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _DEBUGGERD_TOMBSTONE_H
+#define _DEBUGGERD_TOMBSTONE_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include <corkscrew/ptrace.h>
+
+/* Creates a tombstone file and writes the crash dump to it.
+ * Returns the path of the tombstone, which must be freed using free(). */
+char* engrave_tombstone(pid_t pid, pid_t tid, int signal,
+        bool dump_sibling_threads, bool quiet, bool* detach_failed, int* total_sleep_time_usec);
+
+#endif // _DEBUGGERD_TOMBSTONE_H
diff --git a/debuggerd/utility.c b/debuggerd/utility.c
index 409209c..aabaf74 100644
--- a/debuggerd/utility.c
+++ b/debuggerd/utility.c
@@ -15,88 +15,80 @@
 ** limitations under the License.
 */
 
-#include <sys/ptrace.h>
-#include <sys/exec_elf.h>
-#include <signal.h>
-#include <assert.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdio.h>
 #include <string.h>
 #include <errno.h>
+#include <unistd.h>
+#include <signal.h>
+#include <cutils/logd.h>
+#include <sys/ptrace.h>
+#include <sys/wait.h>
 
 #include "utility.h"
 
-/* Get a word from pid using ptrace. The result is the return value. */
-int get_remote_word(int pid, void *src)
-{
-    return ptrace(PTRACE_PEEKTEXT, pid, src, NULL);
-}
+const int sleep_time_usec = 50000;         /* 0.05 seconds */
+const int max_total_sleep_usec = 10000000; /* 10 seconds */
 
+void _LOG(log_t* log, bool in_tombstone_only, const char *fmt, ...) {
+    char buf[512];
 
-/* Handy routine to read aggregated data from pid using ptrace. The read 
- * values are written to the dest locations directly. 
- */
-void get_remote_struct(int pid, void *src, void *dst, size_t size)
-{
-    unsigned int i;
+    va_list ap;
+    va_start(ap, fmt);
 
-    for (i = 0; i+4 <= size; i+=4) {
-        *(int *)((char *)dst+i) = ptrace(PTRACE_PEEKTEXT, pid, (char *)src+i, NULL);
+    if (log && log->tfd >= 0) {
+        int len;
+        vsnprintf(buf, sizeof(buf), fmt, ap);
+        len = strlen(buf);
+        write(log->tfd, buf, len);
     }
 
-    if (i < size) {
-        int val;
-
-        assert((size - i) < 4);
-        val = ptrace(PTRACE_PEEKTEXT, pid, (char *)src+i, NULL);
-        while (i < size) {
-            ((unsigned char *)dst)[i] = val & 0xff;
-            i++;
-            val >>= 8;
-        }
+    if (!in_tombstone_only && (!log || !log->quiet)) {
+        __android_log_vprint(ANDROID_LOG_INFO, "DEBUG", fmt, ap);
     }
+    va_end(ap);
 }
 
-/* Map a pc address to the name of the containing ELF file */
-const char *map_to_name(mapinfo *mi, unsigned pc, const char* def)
-{
-    while(mi) {
-        if((pc >= mi->start) && (pc < mi->end)){
-            return mi->name;
-        }
-        mi = mi->next;
-    }
-    return def;
-}
-
-/* Find the containing map info for the pc */
-const mapinfo *pc_to_mapinfo(mapinfo *mi, unsigned pc, unsigned *rel_pc)
-{
-    *rel_pc = pc;
-    while(mi) {
-        if((pc >= mi->start) && (pc < mi->end)){
-            // Only calculate the relative offset for shared libraries
-            if (strstr(mi->name, ".so")) {
-                *rel_pc -= mi->start;
+int wait_for_signal(pid_t tid, int* total_sleep_time_usec) {
+    for (;;) {
+        int status;
+        pid_t n = waitpid(tid, &status, __WALL | WNOHANG);
+        if (n < 0) {
+            if(errno == EAGAIN) continue;
+            LOG("waitpid failed: %s\n", strerror(errno));
+            return -1;
+        } else if (n > 0) {
+            XLOG("waitpid: n=%d status=%08x\n", n, status);
+            if (WIFSTOPPED(status)) {
+                return WSTOPSIG(status);
+            } else {
+                LOG("unexpected waitpid response: n=%d, status=%08x\n", n, status);
+                return -1;
             }
-            return mi;
         }
-        mi = mi->next;
+
+        if (*total_sleep_time_usec > max_total_sleep_usec) {
+            LOG("timed out waiting for tid=%d to die\n", tid);
+            return -1;
+        }
+
+        /* not ready yet */
+        XLOG("not ready yet\n");
+        usleep(sleep_time_usec);
+        *total_sleep_time_usec += sleep_time_usec;
     }
-    return NULL;
 }
 
-/*
- * Returns true if the specified signal has an associated address (i.e. it
- * sets siginfo_t.si_addr).
- */
-bool signal_has_address(int sig)
-{
-    switch (sig) {
-        case SIGILL:
-        case SIGFPE:
-        case SIGSEGV:
-        case SIGBUS:
-            return true;
-        default:
-            return false;
+void wait_for_stop(pid_t tid, int* total_sleep_time_usec) {
+    siginfo_t si;
+    while (TEMP_FAILURE_RETRY(ptrace(PTRACE_GETSIGINFO, tid, 0, &si)) < 0 && errno == ESRCH) {
+        if (*total_sleep_time_usec > max_total_sleep_usec) {
+            LOG("timed out waiting for tid=%d to stop\n", tid);
+            break;
+        }
+
+        usleep(sleep_time_usec);
+        *total_sleep_time_usec += sleep_time_usec;
     }
 }
diff --git a/debuggerd/utility.h b/debuggerd/utility.h
index 4a935d2..136f46d 100644
--- a/debuggerd/utility.h
+++ b/debuggerd/utility.h
@@ -15,65 +15,40 @@
 ** limitations under the License.
 */
 
-#ifndef __utility_h
-#define __utility_h
+#ifndef _DEBUGGERD_UTILITY_H
+#define _DEBUGGERD_UTILITY_H
 
 #include <stddef.h>
 #include <stdbool.h>
 
-#include "symbol_table.h"
+typedef struct {
+    /* tombstone file descriptor */
+    int tfd;
+    /* if true, does not log anything to the Android logcat */
+    bool quiet;
+} log_t;
 
-#ifndef PT_ARM_EXIDX
-#define PT_ARM_EXIDX    0x70000001      /* .ARM.exidx segment */
-#endif
+/* Log information onto the tombstone. */
+void _LOG(log_t* log, bool in_tombstone_only, const char *fmt, ...)
+        __attribute__ ((format(printf, 3, 4)));
 
-#define STACK_CONTENT_DEPTH 32
-
-typedef struct mapinfo {
-    struct mapinfo *next;
-    unsigned start;
-    unsigned end;
-    unsigned exidx_start;
-    unsigned exidx_end;
-    struct symbol_table *symbols;
-    bool isExecutable;
-    char name[];
-} mapinfo;
-
-/* Get a word from pid using ptrace. The result is the return value. */
-extern int get_remote_word(int pid, void *src);
-
-/* Handy routine to read aggregated data from pid using ptrace. The read 
- * values are written to the dest locations directly. 
- */
-extern void get_remote_struct(int pid, void *src, void *dst, size_t size);
-
-/* Find the containing map for the pc */
-const mapinfo *pc_to_mapinfo (mapinfo *mi, unsigned pc, unsigned *rel_pc);
-
-/* Map a pc address to the name of the containing ELF file */
-const char *map_to_name(mapinfo *mi, unsigned pc, const char* def);
-
-/* Log information onto the tombstone */
-extern void _LOG(int tfd, bool in_tombstone_only, const char *fmt, ...);
-
-/* Determine whether si_addr is valid for this signal */
-bool signal_has_address(int sig);
-
-#define LOG(fmt...) _LOG(-1, 0, fmt)
+#define LOG(fmt...) _LOG(NULL, 0, fmt)
 
 /* Set to 1 for normal debug traces */
 #if 0
-#define XLOG(fmt...) _LOG(-1, 0, fmt)
+#define XLOG(fmt...) _LOG(NULL, 0, fmt)
 #else
 #define XLOG(fmt...) do {} while(0)
 #endif
 
 /* Set to 1 for chatty debug traces. Includes all resolved dynamic symbols */
 #if 0
-#define XLOG2(fmt...) _LOG(-1, 0, fmt)
+#define XLOG2(fmt...) _LOG(NULL, 0, fmt)
 #else
 #define XLOG2(fmt...) do {} while(0)
 #endif
 
-#endif
+int wait_for_signal(pid_t tid, int* total_sleep_time_usec);
+void wait_for_stop(pid_t tid, int* total_sleep_time_usec);
+
+#endif // _DEBUGGERD_UTILITY_H
diff --git a/debuggerd/x86/machine.c b/debuggerd/x86/machine.c
index 9d418cf..01da5fe 100644
--- a/debuggerd/x86/machine.c
+++ b/debuggerd/x86/machine.c
@@ -15,47 +15,44 @@
 ** limitations under the License.
 */
 
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
 #include <stdio.h>
 #include <errno.h>
-#include <signal.h>
-#include <pthread.h>
-#include <fcntl.h>
 #include <sys/types.h>
-#include <dirent.h>
-
 #include <sys/ptrace.h>
-#include <sys/wait.h>
-#include <sys/exec_elf.h>
-#include <sys/stat.h>
 
-#include <cutils/sockets.h>
-#include <cutils/properties.h>
+#include <corkscrew/ptrace.h>
 
-#include <linux/input.h>
+#include <linux/user.h>
 
 #include "../utility.h"
-#include "x86_utility.h"
+#include "../machine.h"
 
-void dump_registers(int tfd, int pid, bool at_fault)
-{
+void dump_memory_and_code(const ptrace_context_t* context __attribute((unused)),
+        log_t* log, pid_t tid, bool at_fault) {
+}
+
+void dump_registers(const ptrace_context_t* context __attribute((unused)),
+        log_t* log, pid_t tid, bool at_fault) {
     struct pt_regs_x86 r;
     bool only_in_tombstone = !at_fault;
 
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
-        _LOG(tfd, only_in_tombstone,
-             "cannot get registers: %s\n", strerror(errno));
+    if(ptrace(PTRACE_GETREGS, tid, 0, &r)) {
+        _LOG(log, only_in_tombstone, "cannot get registers: %s\n", strerror(errno));
         return;
     }
-//if there is no stack, no print just like arm
+    //if there is no stack, no print just like arm
     if(!r.ebp)
         return;
-    _LOG(tfd, only_in_tombstone, " eax %08x  ebx %08x  ecx %08x  edx %08x\n",
+    _LOG(log, only_in_tombstone, "    eax %08x  ebx %08x  ecx %08x  edx %08x\n",
          r.eax, r.ebx, r.ecx, r.edx);
-    _LOG(tfd, only_in_tombstone, " esi %08x  edi %08x\n",
+    _LOG(log, only_in_tombstone, "    esi %08x  edi %08x\n",
          r.esi, r.edi);
-    _LOG(tfd, only_in_tombstone, " xcs %08x  xds %08x  xes %08x  xfs %08x xss %08x\n",
+    _LOG(log, only_in_tombstone, "    xcs %08x  xds %08x  xes %08x  xfs %08x  xss %08x\n",
          r.xcs, r.xds, r.xes, r.xfs, r.xss);
-    _LOG(tfd, only_in_tombstone,
-         " eip %08x  ebp %08x  esp %08x  flags %08x\n",
+    _LOG(log, only_in_tombstone, "    eip %08x  ebp %08x  esp %08x  flags %08x\n",
          r.eip, r.ebp, r.esp, r.eflags);
 }
diff --git a/debuggerd/x86/unwind.c b/debuggerd/x86/unwind.c
deleted file mode 100644
index 0a7f04c..0000000
--- a/debuggerd/x86/unwind.c
+++ /dev/null
@@ -1,86 +0,0 @@
-#include <cutils/logd.h>
-#include <sys/ptrace.h>
-#include "../utility.h"
-#include "x86_utility.h"
-
-
-int unwind_backtrace_with_ptrace_x86(int tfd, pid_t pid, mapinfo *map,
-                                 bool at_fault)
-{
-    struct pt_regs_x86 r;
-    unsigned int stack_level = 0;
-    unsigned int stack_depth = 0;
-    unsigned int rel_pc;
-    unsigned int stack_ptr;
-    unsigned int stack_content;
-
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) return 0;
-    unsigned int eip = (unsigned int)r.eip;
-    unsigned int ebp = (unsigned int)r.ebp;
-    unsigned int cur_sp = (unsigned int)r.esp;
-    const mapinfo *mi;
-    const struct symbol* sym = 0;
-
-
-//ebp==0, it indicates that the stack is poped to the bottom or there is no stack at all.
-    while (ebp) {
-        mi = pc_to_mapinfo(map, eip, &rel_pc);
-
-        /* See if we can determine what symbol this stack frame resides in */
-        if (mi != 0 && mi->symbols != 0) {
-            sym = symbol_table_lookup(mi->symbols, rel_pc);
-        }
-        if (sym) {
-            _LOG(tfd, !at_fault, "    #%02d  eip: %08x  %s (%s)\n",
-                 stack_level, eip, mi ? mi->name : "", sym->name);
-        } else {
-            _LOG(tfd, !at_fault, "    #%02d  eip: %08x  %s\n",
-                 stack_level, eip, mi ? mi->name : "");
-        }
-
-        stack_level++;
-        if (stack_level >= STACK_DEPTH || eip == 0)
-            break;
-        eip = ptrace(PTRACE_PEEKTEXT, pid, (void*)(ebp + 4), NULL);
-        ebp = ptrace(PTRACE_PEEKTEXT, pid, (void*)ebp, NULL);
-    }
-    ebp = (unsigned int)r.ebp;
-    stack_depth = stack_level;
-    stack_level = 0;
-    if (ebp)
-        _LOG(tfd, !at_fault, "stack: \n");
-    while (ebp) {
-        stack_ptr = cur_sp;
-        while((int)(ebp - stack_ptr) >= 0) {
-            stack_content = ptrace(PTRACE_PEEKTEXT, pid, (void*)stack_ptr, NULL);
-            mi = pc_to_mapinfo(map, stack_content, &rel_pc);
-
-            /* See if we can determine what symbol this stack frame resides in */
-            if (mi != 0 && mi->symbols != 0) {
-                sym = symbol_table_lookup(mi->symbols, rel_pc);
-            }
-            if (sym) {
-                _LOG(tfd, !at_fault, "    #%02d  %08x  %08x  %s (%s)\n",
-                     stack_level, stack_ptr, stack_content, mi ? mi->name : "", sym->name);
-            } else {
-                _LOG(tfd, !at_fault, "    #%02d  %08x  %08x  %s\n",
-                     stack_level, stack_ptr, stack_content, mi ? mi->name : "");
-            }
-
-            stack_ptr = stack_ptr + 4;
-            //the stack frame may be very deep.
-            if((int)(stack_ptr - cur_sp) >= STACK_FRAME_DEPTH) {
-                _LOG(tfd, !at_fault, "    ......  ......  \n");
-                break;
-            }
-        }
-        cur_sp = ebp + 4;
-        stack_level++;
-        if (stack_level >= STACK_DEPTH || stack_level >= stack_depth)
-            break;
-        ebp = ptrace(PTRACE_PEEKTEXT, pid, (void*)ebp, NULL);
-    }
-
-    return stack_depth;
-}
-
diff --git a/debuggerd/x86/x86_utility.h b/debuggerd/x86/x86_utility.h
deleted file mode 100644
index ac6a885..0000000
--- a/debuggerd/x86/x86_utility.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define STACK_DEPTH 8
-#define STACK_FRAME_DEPTH 64
-
-typedef struct pt_regs_x86 {
-    long ebx;
-    long ecx;
-    long edx;
-    long esi;
-    long edi;
-    long ebp;
-    long eax;
-    int  xds;
-    int  xes;
-    int  xfs;
-    int  xgs;
-    long orig_eax;
-    long eip;
-    int  xcs;
-    long eflags;
-    long esp;
-    int  xss;
-}pt_regs_x86;
-
diff --git a/fastboot/Android.mk b/fastboot/Android.mk
index 3c5538f..e3261a7 100644
--- a/fastboot/Android.mk
+++ b/fastboot/Android.mk
@@ -16,8 +16,9 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/../mkbootimg
-LOCAL_SRC_FILES := protocol.c engine.c bootimg.c fastboot.c 
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/../mkbootimg \
+  $(LOCAL_PATH)/../../extras/ext4_utils
+LOCAL_SRC_FILES := protocol.c engine.c bootimg.c fastboot.c
 LOCAL_MODULE := fastboot
 
 ifeq ($(HOST_OS),linux)
@@ -47,7 +48,13 @@
   LOCAL_C_INCLUDES += development/host/windows/usb/api
 endif
 
-LOCAL_STATIC_LIBRARIES := $(EXTRA_STATIC_LIBS) libzipfile libunz
+LOCAL_STATIC_LIBRARIES := $(EXTRA_STATIC_LIBS) libzipfile libunz libext4_utils libsparse libz
+
+ifneq ($(HOST_OS),windows)
+ifeq ($(HAVE_SELINUX), true)
+LOCAL_STATIC_LIBRARIES += libselinux
+endif # HAVE_SELINUX
+endif # HOST_OS != windows
 
 include $(BUILD_HOST_EXECUTABLE)
 $(call dist-for-goals,dist_files,$(LOCAL_BUILT_MODULE))
diff --git a/fastboot/bootimg.c b/fastboot/bootimg.c
index e5aea4e..9e0e45c 100644
--- a/fastboot/bootimg.c
+++ b/fastboot/bootimg.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -48,23 +48,23 @@
     unsigned second_actual;
     unsigned page_mask;
     boot_img_hdr *hdr;
-    
+
     page_mask = page_size - 1;
-    
+
     kernel_actual = (kernel_size + page_mask) & (~page_mask);
     ramdisk_actual = (ramdisk_size + page_mask) & (~page_mask);
     second_actual = (second_size + page_mask) & (~page_mask);
-    
+
     *bootimg_size = page_size + kernel_actual + ramdisk_actual + second_actual;
-    
+
     hdr = calloc(*bootimg_size, 1);
-    
+
     if(hdr == 0) {
         return hdr;
     }
 
     memcpy(hdr->magic, BOOT_MAGIC, BOOT_MAGIC_SIZE);
-    
+
     hdr->kernel_size =  kernel_size;
     hdr->ramdisk_size = ramdisk_size;
     hdr->second_size =  second_size;
@@ -74,9 +74,9 @@
     hdr->tags_addr =    base + 0x00000100;
     hdr->page_size =    page_size;
 
-    memcpy(hdr->magic + page_size, 
+    memcpy(hdr->magic + page_size,
            kernel, kernel_size);
-    memcpy(hdr->magic + page_size + kernel_actual, 
+    memcpy(hdr->magic + page_size + kernel_actual,
            ramdisk, ramdisk_size);
     memcpy(hdr->magic + page_size + kernel_actual + ramdisk_actual,
            second, second_size);
diff --git a/fastboot/engine.c b/fastboot/engine.c
index 6d94035..93be3de 100644
--- a/fastboot/engine.c
+++ b/fastboot/engine.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,20 +19,35 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
+#include "fastboot.h"
+#include "make_ext4fs.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <stdbool.h>
 #include <string.h>
+#include <sys/stat.h>
 #include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
 
-#include "fastboot.h"
+#ifdef USE_MINGW
+#include <fcntl.h>
+#else
+#include <sys/mman.h>
+#endif
+
+extern struct fs_info info;
+
+#define ARRAY_SIZE(x)           (sizeof(x)/sizeof(x[0]))
 
 double now()
 {
@@ -50,7 +65,7 @@
     va_start(ap, fmt);
     vsprintf(buf, fmt, ap);
     va_end(ap);
-    
+
     s = strdup(buf);
     if (s == 0) die("out of memory");
     return s;
@@ -60,15 +75,19 @@
 #define OP_COMMAND    2
 #define OP_QUERY      3
 #define OP_NOTICE     4
+#define OP_FORMAT     5
+#define OP_DOWNLOAD_SPARSE 6
 
 typedef struct Action Action;
 
-struct Action 
+#define CMD_SIZE 64
+
+struct Action
 {
     unsigned op;
     Action *next;
 
-    char cmd[64];    
+    char cmd[CMD_SIZE];
     const char *prod;
     void *data;
     unsigned size;
@@ -82,6 +101,49 @@
 static Action *action_list = 0;
 static Action *action_last = 0;
 
+
+struct image_data {
+    long long partition_size;
+    long long image_size; // real size of image file
+    void *buffer;
+};
+
+void generate_ext4_image(struct image_data *image);
+void cleanup_image(struct image_data *image);
+
+int fb_getvar(struct usb_handle *usb, char *response, const char *fmt, ...)
+{
+    char cmd[CMD_SIZE] = "getvar:";
+    int getvar_len = strlen(cmd);
+    va_list args;
+
+    response[FB_RESPONSE_SZ] = '\0';
+    va_start(args, fmt);
+    vsnprintf(cmd + getvar_len, sizeof(cmd) - getvar_len, fmt, args);
+    va_end(args);
+    cmd[CMD_SIZE - 1] = '\0';
+    return fb_command_response(usb, cmd, response);
+}
+
+struct generator {
+    char *fs_type;
+
+    /* generate image and return it as image->buffer.
+     * size of the buffer returned as image->image_size.
+     *
+     * image->partition_size specifies what is the size of the
+     * file partition we generate image for.
+     */
+    void (*generate)(struct image_data *image);
+
+    /* it cleans the buffer allocated during image creation.
+     * this function probably does free() or munmap().
+     */
+    void (*cleanup)(struct image_data *image);
+} generators[] = {
+    { "ext4", generate_ext4_image, cleanup_image }
+};
+
 static int cb_default(Action *a, int status, char *resp)
 {
     if (status) {
@@ -133,6 +195,180 @@
     a->msg = mkmsg("erasing '%s'", ptn);
 }
 
+/* Loads file content into buffer. Returns NULL on error. */
+static void *load_buffer(int fd, off_t size)
+{
+    void *buffer;
+
+#ifdef USE_MINGW
+    ssize_t count = 0;
+
+    // mmap is more efficient but mingw does not support it.
+    // In this case we read whole image into memory buffer.
+    buffer = malloc(size);
+    if (!buffer) {
+        perror("malloc");
+        return NULL;
+    }
+
+    lseek(fd, 0, SEEK_SET);
+    while(count < size) {
+        ssize_t actually_read = read(fd, (char*)buffer+count, size-count);
+
+        if (actually_read == 0) {
+            break;
+        }
+        if (actually_read < 0) {
+            if (errno == EINTR) {
+                continue;
+            }
+            perror("read");
+            free(buffer);
+            return NULL;
+        }
+
+        count += actually_read;
+    }
+#else
+    buffer = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
+    if (buffer == MAP_FAILED) {
+        perror("mmap");
+        return NULL;
+    }
+#endif
+
+    return buffer;
+}
+
+void cleanup_image(struct image_data *image)
+{
+#ifdef USE_MINGW
+    free(image->buffer);
+#else
+    munmap(image->buffer, image->image_size);
+#endif
+}
+
+void generate_ext4_image(struct image_data *image)
+{
+    int fd;
+    struct stat st;
+
+#ifdef USE_MINGW
+    /* Ideally we should use tmpfile() here, the same as with unix version.
+     * But unfortunately it is not portable as it is not clear whether this
+     * function opens file in TEXT or BINARY mode.
+     *
+     * There are also some reports it is buggy:
+     *    http://pdplab.it.uom.gr/teaching/gcc_manuals/gnulib.html#tmpfile
+     *    http://www.mega-nerd.com/erikd/Blog/Windiots/tmpfile.html
+     */
+    char *filename = tempnam(getenv("TEMP"), "fastboot-format.img");
+    fd = open(filename, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0644);
+    unlink(filename);
+#else
+    fd = fileno(tmpfile());
+#endif
+    /* reset ext4fs info so we can be called multiple times */
+    reset_ext4fs_info();
+    info.len = image->partition_size;
+    make_ext4fs_internal(fd, NULL, NULL, NULL, 0, 1, 0, 0, 0, NULL);
+
+    fstat(fd, &st);
+    image->image_size = st.st_size;
+    image->buffer = load_buffer(fd, st.st_size);
+
+    close(fd);
+}
+
+int fb_format(Action *a, usb_handle *usb, int skip_if_not_supported)
+{
+    const char *partition = a->cmd;
+    char response[FB_RESPONSE_SZ+1];
+    int status = 0;
+    struct image_data image;
+    struct generator *generator = NULL;
+    int fd;
+    unsigned i;
+    char cmd[CMD_SIZE];
+
+    status = fb_getvar(usb, response, "partition-type:%s", partition);
+    if (status) {
+        if (skip_if_not_supported) {
+            fprintf(stderr,
+                    "Erase successful, but not automatically formatting.\n");
+            fprintf(stderr,
+                    "Can't determine partition type.\n");
+            return 0;
+        }
+        fprintf(stderr,"FAILED (%s)\n", fb_get_error());
+        return status;
+    }
+
+    for (i = 0; i < ARRAY_SIZE(generators); i++) {
+        if (!strncmp(generators[i].fs_type, response, FB_RESPONSE_SZ)) {
+            generator = &generators[i];
+            break;
+        }
+    }
+    if (!generator) {
+        if (skip_if_not_supported) {
+            fprintf(stderr,
+                    "Erase successful, but not automatically formatting.\n");
+            fprintf(stderr,
+                    "File system type %s not supported.\n", response);
+            return 0;
+        }
+        fprintf(stderr,"Formatting is not supported for filesystem with type '%s'.\n",
+                response);
+        return -1;
+    }
+
+    status = fb_getvar(usb, response, "partition-size:%s", partition);
+    if (status) {
+        if (skip_if_not_supported) {
+            fprintf(stderr,
+                    "Erase successful, but not automatically formatting.\n");
+            fprintf(stderr, "Unable to get partition size\n.");
+            return 0;
+        }
+        fprintf(stderr,"FAILED (%s)\n", fb_get_error());
+        return status;
+    }
+    image.partition_size = strtoll(response, (char **)NULL, 16);
+
+    generator->generate(&image);
+    if (!image.buffer) {
+        fprintf(stderr,"Cannot generate image.\n");
+        return -1;
+    }
+
+    // Following piece of code is similar to fb_queue_flash() but executes
+    // actions directly without queuing
+    fprintf(stderr, "sending '%s' (%lli KB)...\n", partition, image.image_size/1024);
+    status = fb_download_data(usb, image.buffer, image.image_size);
+    if (status) goto cleanup;
+
+    fprintf(stderr, "writing '%s'...\n", partition);
+    snprintf(cmd, sizeof(cmd), "flash:%s", partition);
+    status = fb_command(usb, cmd);
+    if (status) goto cleanup;
+
+cleanup:
+    generator->cleanup(&image);
+
+    return status;
+}
+
+void fb_queue_format(const char *partition, int skip_if_not_supported)
+{
+    Action *a;
+
+    a = queue_action(OP_FORMAT, partition);
+    a->data = (void*)skip_if_not_supported;
+    a->msg = mkmsg("formatting '%s' partition", partition);
+}
+
 void fb_queue_flash(const char *ptn, void *data, unsigned sz)
 {
     Action *a;
@@ -146,6 +382,19 @@
     a->msg = mkmsg("writing '%s'", ptn);
 }
 
+void fb_queue_flash_sparse(const char *ptn, struct sparse_file *s, unsigned sz)
+{
+    Action *a;
+
+    a = queue_action(OP_DOWNLOAD_SPARSE, "");
+    a->data = s;
+    a->size = 0;
+    a->msg = mkmsg("sending sparse '%s' (%d KB)", ptn, sz / 1024);
+
+    a = queue_action(OP_COMMAND, "flash:%s", ptn);
+    a->msg = mkmsg("writing '%s'", ptn);
+}
+
 static int match(char *str, const char **value, unsigned count)
 {
     const char *val;
@@ -340,6 +589,14 @@
             if (status) break;
         } else if (a->op == OP_NOTICE) {
             fprintf(stderr,"%s\n",(char*)a->data);
+        } else if (a->op == OP_FORMAT) {
+            status = fb_format(a, usb, (int)a->data);
+            status = a->func(a, status, status ? fb_get_error() : "");
+            if (status) break;
+        } else if (a->op == OP_DOWNLOAD_SPARSE) {
+            status = fb_download_data_sparse(usb, a->data);
+            status = a->func(a, status, status ? fb_get_error() : "");
+            if (status) break;
         } else {
             die("bogus action");
         }
diff --git a/fastboot/fastboot.c b/fastboot/fastboot.c
index fb7ac4d..57363d8 100644
--- a/fastboot/fastboot.c
+++ b/fastboot/fastboot.c
@@ -26,22 +26,34 @@
  * SUCH DAMAGE.
  */
 
+#define _LARGEFILE64_SOURCE
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
 #include <string.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <limits.h>
 #include <ctype.h>
+#include <getopt.h>
 
 #include <sys/time.h>
+#include <sys/types.h>
+
 #include <bootimg.h>
+#include <sparse/sparse.h>
 #include <zipfile/zipfile.h>
 
 #include "fastboot.h"
 
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
 char cur_product[FB_RESPONSE_SZ + 1];
 
 void bootimg_set_cmdline(boot_img_hdr *h, const char *cmdline);
@@ -58,6 +70,8 @@
 static const char *cmdline = 0;
 static int wipe_data = 0;
 static unsigned short vendor_id = 0;
+static int64_t sparse_limit = -1;
+static int64_t target_sparse_limit = -1;
 
 static unsigned base_addr = 0x10000000;
 
@@ -88,6 +102,8 @@
         fn = "system.img";
     } else if(!strcmp(item,"userdata")) {
         fn = "userdata.img";
+    } else if(!strcmp(item,"cache")) {
+        fn = "cache.img";
     } else if(!strcmp(item,"info")) {
         fn = "android-info.txt";
     } else {
@@ -114,7 +130,27 @@
 
 #ifdef _WIN32
 void *load_file(const char *fn, unsigned *_sz);
+int64_t file_size(const char *fn);
 #else
+#if defined(__APPLE__) && defined(__MACH__)
+#define lseek64 lseek
+#define off64_t off_t
+#endif
+
+int64_t file_size(const char *fn)
+{
+    off64_t off;
+    int fd;
+
+    fd = open(fn, O_RDONLY);
+    if (fd < 0) return -1;
+
+    off = lseek64(fd, 0, SEEK_END);
+    close(fd);
+
+    return off;
+}
+
 void *load_file(const char *fn, unsigned *_sz)
 {
     char *data;
@@ -159,6 +195,7 @@
        (info->dev_vendor != 0x0955) &&  // Nvidia
        (info->dev_vendor != 0x413c) &&  // DELL
        (info->dev_vendor != 0x2314) &&  // INQ Mobile
+       (info->dev_vendor != 0x0b05) &&  // Asus
        (info->dev_vendor != 0x0bb4))    // HTC
             return -1;
     if(info->ifc_class != 0xff) return -1;
@@ -223,6 +260,7 @@
             "  flashall                                 flash boot + recovery + system\n"
             "  flash <partition> [ <filename> ]         write a file to a flash partition\n"
             "  erase <partition>                        erase a flash partition\n"
+            "  format <partition>                       format a flash partition \n"
             "  getvar <variable>                        display a bootloader variable\n"
             "  boot <kernel> [ <ramdisk> ]              download and boot kernel\n"
             "  flash:raw boot <kernel> [ <ramdisk> ]    create bootimage and flash it\n"
@@ -240,6 +278,8 @@
             "  -i <vendor id>                           specify a custom USB vendor id\n"
             "  -b <base_addr>                           specify a custom kernel base address\n"
             "  -n <page size>                           specify the nand page size. default: 2048\n"
+            "  -S <size>[K|M|G]                         automatically sparse files greater than\n"
+            "                                           size.  0 to disable\n"
         );
 }
 
@@ -425,6 +465,110 @@
     fb_queue_notice("--------------------------------------------");
 }
 
+
+struct sparse_file **load_sparse_files(const char *fname, int max_size)
+{
+    int fd;
+    struct sparse_file *s;
+    int files;
+    struct sparse_file **out_s;
+
+    fd = open(fname, O_RDONLY | O_BINARY);
+    if (fd < 0) {
+        die("cannot open '%s'\n", fname);
+    }
+
+    s = sparse_file_import_auto(fd, false);
+    if (!s) {
+        die("cannot sparse read file '%s'\n", fname);
+    }
+
+    files = sparse_file_resparse(s, max_size, NULL, 0);
+    if (files < 0) {
+        die("Failed to resparse '%s'\n", fname);
+    }
+
+    out_s = calloc(sizeof(struct sparse_file *), files + 1);
+    if (!out_s) {
+        die("Failed to allocate sparse file array\n");
+    }
+
+    files = sparse_file_resparse(s, max_size, out_s, files);
+    if (files < 0) {
+        die("Failed to resparse '%s'\n", fname);
+    }
+
+    return out_s;
+}
+
+static int64_t get_target_sparse_limit(struct usb_handle *usb)
+{
+    int64_t limit = 0;
+    char response[FB_RESPONSE_SZ + 1];
+    int status = fb_getvar(usb, response, "max-download-size");
+
+    if (!status) {
+        limit = strtoul(response, NULL, 0);
+        if (limit > 0) {
+            fprintf(stderr, "target reported max download size of %lld bytes\n",
+                    limit);
+        }
+    }
+
+    return limit;
+}
+
+static int64_t get_sparse_limit(struct usb_handle *usb, int64_t size)
+{
+    int64_t limit;
+
+    if (sparse_limit == 0) {
+        return 0;
+    } else if (sparse_limit > 0) {
+        limit = sparse_limit;
+    } else {
+        if (target_sparse_limit == -1) {
+            target_sparse_limit = get_target_sparse_limit(usb);
+        }
+        if (target_sparse_limit > 0) {
+            limit = target_sparse_limit;
+        } else {
+            return 0;
+        }
+    }
+
+    if (size > limit) {
+        return limit;
+    }
+
+    return 0;
+}
+
+void do_flash(usb_handle *usb, const char *pname, const char *fname)
+{
+    int64_t sz64;
+    void *data;
+    int64_t limit;
+
+    sz64 = file_size(fname);
+    limit = get_sparse_limit(usb, sz64);
+    if (limit) {
+        struct sparse_file **s = load_sparse_files(fname, limit);
+        if (s == NULL) {
+            die("cannot sparse load '%s'\n", fname);
+        }
+        while (*s) {
+            sz64 = sparse_file_len(*s, true, false);
+            fb_queue_flash_sparse(pname, *s++, sz64);
+        }
+    } else {
+        unsigned int sz;
+        data = load_file(fname, &sz);
+        if (data == 0) die("cannot load '%s'\n", fname);
+        fb_queue_flash(pname, data, sz);
+    }
+}
+
 void do_update_signature(zipfile_t zip, char *fn)
 {
     void *data;
@@ -562,6 +706,47 @@
     return 0;
 }
 
+static int64_t parse_num(const char *arg)
+{
+    char *endptr;
+    unsigned long long num;
+
+    num = strtoull(arg, &endptr, 0);
+    if (endptr == arg) {
+        return -1;
+    }
+
+    if (*endptr == 'k' || *endptr == 'K') {
+        if (num >= (-1ULL) / 1024) {
+            return -1;
+        }
+        num *= 1024LL;
+        endptr++;
+    } else if (*endptr == 'm' || *endptr == 'M') {
+        if (num >= (-1ULL) / (1024 * 1024)) {
+            return -1;
+        }
+        num *= 1024LL * 1024LL;
+        endptr++;
+    } else if (*endptr == 'g' || *endptr == 'G') {
+        if (num >= (-1ULL) / (1024 * 1024 * 1024)) {
+            return -1;
+        }
+        num *= 1024LL * 1024LL * 1024LL;
+        endptr++;
+    }
+
+    if (*endptr != '\0') {
+        return -1;
+    }
+
+    if (num > INT64_MAX) {
+        return -1;
+    }
+
+    return num;
+}
+
 int main(int argc, char **argv)
 {
     int wants_wipe = 0;
@@ -571,62 +756,83 @@
     unsigned sz;
     unsigned page_size = 2048;
     int status;
+    int c;
+    int r;
 
-    skip(1);
-    if (argc == 0) {
+    const struct option longopts = { 0, 0, 0, 0 };
+
+    serial = getenv("ANDROID_SERIAL");
+
+    while (1) {
+        c = getopt_long(argc, argv, "wb:n:s:S:p:c:i:m:h", &longopts, NULL);
+        if (c < 0) {
+            break;
+        }
+
+        switch (c) {
+        case 'w':
+            wants_wipe = 1;
+            break;
+        case 'b':
+            base_addr = strtoul(optarg, 0, 16);
+            break;
+        case 'n':
+            page_size = (unsigned)strtoul(optarg, NULL, 0);
+            if (!page_size) die("invalid page size");
+            break;
+        case 's':
+            serial = optarg;
+            break;
+        case 'S':
+            sparse_limit = parse_num(optarg);
+            if (sparse_limit < 0) {
+                    die("invalid sparse limit");
+            }
+            break;
+        case 'p':
+            product = optarg;
+            break;
+        case 'c':
+            cmdline = optarg;
+            break;
+        case 'i': {
+                char *endptr = NULL;
+                unsigned long val;
+
+                val = strtoul(optarg, &endptr, 0);
+                if (!endptr || *endptr != '\0' || (val & ~0xffff))
+                    die("invalid vendor id '%s'", optarg);
+                vendor_id = (unsigned short)val;
+                break;
+            }
+        case 'h':
+            usage();
+            return 1;
+        case '?':
+            return 1;
+        default:
+            abort();
+        }
+    }
+
+    argc -= optind;
+    argv += optind;
+
+    if (argc == 0 && !wants_wipe) {
         usage();
         return 1;
     }
 
-    if (!strcmp(*argv, "devices")) {
+    if (argc > 0 && !strcmp(*argv, "devices")) {
+        skip(1);
         list_devices();
         return 0;
     }
 
-    if (!strcmp(*argv, "help")) {
-        usage();
-        return 0;
-    }
-
-
-    serial = getenv("ANDROID_SERIAL");
+    usb = open_device();
 
     while (argc > 0) {
-        if(!strcmp(*argv, "-w")) {
-            wants_wipe = 1;
-            skip(1);
-        } else if(!strcmp(*argv, "-b")) {
-            require(2);
-            base_addr = strtoul(argv[1], 0, 16);
-            skip(2);
-        } else if(!strcmp(*argv, "-n")) {
-            require(2);
-            page_size = (unsigned)strtoul(argv[1], NULL, 0);
-            if (!page_size) die("invalid page size");
-            skip(2);
-        } else if(!strcmp(*argv, "-s")) {
-            require(2);
-            serial = argv[1];
-            skip(2);
-        } else if(!strcmp(*argv, "-p")) {
-            require(2);
-            product = argv[1];
-            skip(2);
-        } else if(!strcmp(*argv, "-c")) {
-            require(2);
-            cmdline = argv[1];
-            skip(2);
-        } else if(!strcmp(*argv, "-i")) {
-            char *endptr = NULL;
-            unsigned long val;
-
-            require(2);
-            val = strtoul(argv[1], &endptr, 0);
-            if (!endptr || *endptr != '\0' || (val & ~0xffff))
-                die("invalid vendor id '%s'", argv[1]);
-            vendor_id = (unsigned short)val;
-            skip(2);
-        } else if(!strcmp(*argv, "getvar")) {
+        if(!strcmp(*argv, "getvar")) {
             require(2);
             fb_queue_display(argv[1], argv[1]);
             skip(2);
@@ -634,6 +840,10 @@
             require(2);
             fb_queue_erase(argv[1]);
             skip(2);
+        } else if(!strcmp(*argv, "format")) {
+            require(2);
+            fb_queue_format(argv[1], 0);
+            skip(2);
         } else if(!strcmp(*argv, "signature")) {
             require(2);
             data = load_file(argv[1], &sz);
@@ -679,9 +889,7 @@
                 skip(2);
             }
             if (fname == 0) die("cannot determine image filename for '%s'", pname);
-            data = load_file(fname, &sz);
-            if (data == 0) die("cannot load '%s'\n", fname);
-            fb_queue_flash(pname, data, sz);
+            do_flash(usb, pname, fname);
         } else if(!strcmp(*argv, "flash:raw")) {
             char *pname = argv[1];
             char *kname = argv[2];
@@ -711,6 +919,9 @@
             wants_reboot = 1;
         } else if(!strcmp(*argv, "oem")) {
             argc = do_oem_command(argc, argv);
+        } else if (!strcmp(*argv, "help")) {
+            usage();
+            return 0;
         } else {
             usage();
             return 1;
@@ -719,7 +930,9 @@
 
     if (wants_wipe) {
         fb_queue_erase("userdata");
+        fb_queue_format("userdata", 1);
         fb_queue_erase("cache");
+        fb_queue_format("cache", 1);
     }
     if (wants_reboot) {
         fb_queue_reboot();
@@ -727,8 +940,6 @@
         fb_queue_command("reboot-bootloader", "rebooting into bootloader");
     }
 
-    usb = open_device();
-
     status = fb_execute_queue(usb);
     return (status) ? 1 : 0;
 }
diff --git a/fastboot/fastboot.h b/fastboot/fastboot.h
index 9e043fe..9177932 100644
--- a/fastboot/fastboot.h
+++ b/fastboot/fastboot.h
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -31,18 +31,24 @@
 
 #include "usb.h"
 
+struct sparse_file;
+
 /* protocol.c - fastboot protocol */
 int fb_command(usb_handle *usb, const char *cmd);
 int fb_command_response(usb_handle *usb, const char *cmd, char *response);
 int fb_download_data(usb_handle *usb, const void *data, unsigned size);
+int fb_download_data_sparse(usb_handle *usb, struct sparse_file *s);
 char *fb_get_error(void);
 
 #define FB_COMMAND_SZ 64
 #define FB_RESPONSE_SZ 64
 
 /* engine.c - high level command queue engine */
+int fb_getvar(struct usb_handle *usb, char *response, const char *fmt, ...);
 void fb_queue_flash(const char *ptn, void *data, unsigned sz);;
+void fb_queue_flash_sparse(const char *ptn, struct sparse_file *s, unsigned sz);
 void fb_queue_erase(const char *ptn);
+void fb_queue_format(const char *ptn, int skip_if_not_supported);
 void fb_queue_require(const char *prod, const char *var, int invert,
         unsigned nvalues, const char **value);
 void fb_queue_display(const char *var, const char *prettyname);
diff --git a/fastboot/protocol.c b/fastboot/protocol.c
index 3948363..a0e0fd4 100644
--- a/fastboot/protocol.c
+++ b/fastboot/protocol.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,18 +19,25 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
+#define min(a, b) \
+    ({ typeof(a) _a = (a); typeof(b) _b = (b); (_a < _b) ? _a : _b; })
+#define round_down(a, b) \
+    ({ typeof(a) _a = (a); typeof(b) _b = (b); _a - (_a % _b); })
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 
+#include <sparse/sparse.h>
+
 #include "fastboot.h"
 
 static char ERROR[128];
@@ -40,8 +47,7 @@
     return ERROR;
 }
 
-static int check_response(usb_handle *usb, unsigned size, 
-                          unsigned data_okay, char *response)
+static int check_response(usb_handle *usb, unsigned int size, char *response)
 {
     unsigned char status[65];
     int r;
@@ -82,7 +88,7 @@
             return -1;
         }
 
-        if(!memcmp(status, "DATA", 4) && data_okay){
+        if(!memcmp(status, "DATA", 4) && size > 0){
             unsigned dsize = strtoul((char*) status + 4, 0, 16);
             if(dsize > size) {
                 strcpy(ERROR, "data size too large");
@@ -100,13 +106,12 @@
     return -1;
 }
 
-static int _command_send(usb_handle *usb, const char *cmd,
-                         const void *data, unsigned size,
-                         char *response)
+static int _command_start(usb_handle *usb, const char *cmd, unsigned size,
+                          char *response)
 {
     int cmdsize = strlen(cmd);
     int r;
-    
+
     if(response) {
         response[0] = 0;
     }
@@ -122,56 +127,91 @@
         return -1;
     }
 
-    if(data == 0) {
-        return check_response(usb, size, 0, response);
+    return check_response(usb, size, response);
+}
+
+static int _command_data(usb_handle *usb, const void *data, unsigned size)
+{
+    int r;
+
+    r = usb_write(usb, data, size);
+    if(r < 0) {
+        sprintf(ERROR, "data transfer failure (%s)", strerror(errno));
+        usb_close(usb);
+        return -1;
+    }
+    if(r != ((int) size)) {
+        sprintf(ERROR, "data transfer failure (short transfer)");
+        usb_close(usb);
+        return -1;
     }
 
-    r = check_response(usb, size, 1, 0);
+    return r;
+}
+
+static int _command_end(usb_handle *usb)
+{
+    int r;
+    r = check_response(usb, 0, 0);
     if(r < 0) {
         return -1;
     }
-    size = r;
+    return 0;
+}
 
-    if(size) {
-        r = usb_write(usb, data, size);
-        if(r < 0) {
-            sprintf(ERROR, "data transfer failure (%s)", strerror(errno));
-            usb_close(usb);
-            return -1;
-        }
-        if(r != ((int) size)) {
-            sprintf(ERROR, "data transfer failure (short transfer)");
-            usb_close(usb);
-            return -1;
-        }
+static int _command_send(usb_handle *usb, const char *cmd,
+                         const void *data, unsigned size,
+                         char *response)
+{
+    int r;
+    if (size == 0) {
+        return -1;
     }
-    
-    r = check_response(usb, 0, 0, 0);
+
+    r = _command_start(usb, cmd, size, response);
+    if (r < 0) {
+        return -1;
+    }
+
+    r = _command_data(usb, data, size);
+    if (r < 0) {
+        return -1;
+    }
+
+    r = _command_end(usb);
     if(r < 0) {
         return -1;
-    } else {
-        return size;
     }
+
+    return size;
+}
+
+static int _command_send_no_data(usb_handle *usb, const char *cmd,
+                                 char *response)
+{
+    int r;
+
+    return _command_start(usb, cmd, 0, response);
 }
 
 int fb_command(usb_handle *usb, const char *cmd)
 {
-    return _command_send(usb, cmd, 0, 0, 0);
+    return _command_send_no_data(usb, cmd, 0);
 }
 
 int fb_command_response(usb_handle *usb, const char *cmd, char *response)
 {
-    return _command_send(usb, cmd, 0, 0, response);
+    return _command_send_no_data(usb, cmd, response);
 }
 
 int fb_download_data(usb_handle *usb, const void *data, unsigned size)
 {
     char cmd[64];
     int r;
-    
+
     sprintf(cmd, "download:%08x", size);
     r = _command_send(usb, cmd, data, size, 0);
-    
+
     if(r < 0) {
         return -1;
     } else {
@@ -179,3 +219,96 @@
     }
 }
 
+#define USB_BUF_SIZE 512
+static char usb_buf[USB_BUF_SIZE];
+static int usb_buf_len;
+
+static int fb_download_data_sparse_write(void *priv, const void *data, int len)
+{
+    int r;
+    usb_handle *usb = priv;
+    int to_write;
+    const char *ptr = data;
+
+    if (usb_buf_len) {
+        to_write = min(USB_BUF_SIZE - usb_buf_len, len);
+
+        memcpy(usb_buf + usb_buf_len, ptr, to_write);
+        usb_buf_len += to_write;
+        ptr += to_write;
+        len -= to_write;
+    }
+
+    if (usb_buf_len == USB_BUF_SIZE) {
+        r = _command_data(usb, usb_buf, USB_BUF_SIZE);
+        if (r != USB_BUF_SIZE) {
+            return -1;
+        }
+        usb_buf_len = 0;
+    }
+
+    if (len > USB_BUF_SIZE) {
+        if (usb_buf_len > 0) {
+            sprintf(ERROR, "internal error: usb_buf not empty\n");
+            return -1;
+        }
+        to_write = round_down(len, USB_BUF_SIZE);
+        r = _command_data(usb, ptr, to_write);
+        if (r != to_write) {
+            return -1;
+        }
+        ptr += to_write;
+        len -= to_write;
+    }
+
+    if (len > 0) {
+        if (len > USB_BUF_SIZE) {
+            sprintf(ERROR, "internal error: too much left for usb_buf\n");
+            return -1;
+        }
+        memcpy(usb_buf, ptr, len);
+        usb_buf_len = len;
+    }
+
+    return 0;
+}
+
+static int fb_download_data_sparse_flush(usb_handle *usb)
+{
+    int r;
+
+    if (usb_buf_len > 0) {
+        r = _command_data(usb, usb_buf, usb_buf_len);
+        if (r != usb_buf_len) {
+            return -1;
+        }
+        usb_buf_len = 0;
+    }
+
+    return 0;
+}
+
+int fb_download_data_sparse(usb_handle *usb, struct sparse_file *s)
+{
+    char cmd[64];
+    int r;
+    int size = sparse_file_len(s, true, false);
+    if (size <= 0) {
+        return -1;
+    }
+
+    sprintf(cmd, "download:%08x", size);
+    r = _command_start(usb, cmd, size, 0);
+    if (r < 0) {
+        return -1;
+    }
+
+    r = sparse_file_callback(s, true, false, fb_download_data_sparse_write, usb);
+    if (r < 0) {
+        return -1;
+    }
+
+    fb_download_data_sparse_flush(usb);
+
+    return _command_end(usb);
+}
diff --git a/fastboot/usb.h b/fastboot/usb.h
index cc157d5..df9efde 100644
--- a/fastboot/usb.h
+++ b/fastboot/usb.h
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -42,19 +42,19 @@
     unsigned char dev_class;
     unsigned char dev_subclass;
     unsigned char dev_protocol;
-    
+
     unsigned char ifc_class;
     unsigned char ifc_subclass;
     unsigned char ifc_protocol;
 
     unsigned char has_bulk_in;
     unsigned char has_bulk_out;
-    
+
     unsigned char writable;
 
     char serial_number[256];
 };
-  
+
 typedef int (*ifc_match_func)(usb_ifc_info *ifc);
 
 usb_handle *usb_open(ifc_match_func callback);
diff --git a/fastboot/usb_linux.c b/fastboot/usb_linux.c
index cbc64e4..83c6de9 100644
--- a/fastboot/usb_linux.c
+++ b/fastboot/usb_linux.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -66,7 +66,7 @@
  */
 #define MAX_USBFS_BULK_SIZE (16 * 1024)
 
-struct usb_handle 
+struct usb_handle
 {
     char fname[64];
     int desc;
@@ -85,12 +85,12 @@
 static int check(void *_desc, int len, unsigned type, int size)
 {
     unsigned char *desc = _desc;
-    
+
     if(len < size) return -1;
     if(desc[0] < size) return -1;
     if(desc[0] > len) return -1;
     if(desc[1] != type) return -1;
-    
+
     return 0;
 }
 
@@ -103,35 +103,37 @@
     struct usb_interface_descriptor *ifc;
     struct usb_endpoint_descriptor *ept;
     struct usb_ifc_info info;
-    
+
     int in, out;
     unsigned i;
     unsigned e;
-    
+
     if(check(ptr, len, USB_DT_DEVICE, USB_DT_DEVICE_SIZE))
         return -1;
     dev = (void*) ptr;
     len -= dev->bLength;
     ptr += dev->bLength;
-    
+
     if(check(ptr, len, USB_DT_CONFIG, USB_DT_CONFIG_SIZE))
         return -1;
     cfg = (void*) ptr;
     len -= cfg->bLength;
     ptr += cfg->bLength;
-    
+
     info.dev_vendor = dev->idVendor;
     info.dev_product = dev->idProduct;
     info.dev_class = dev->bDeviceClass;
     info.dev_subclass = dev->bDeviceSubClass;
     info.dev_protocol = dev->bDeviceProtocol;
     info.writable = writable;
-    
+
     // read device serial number (if there is one)
     info.serial_number[0] = 0;
     if (dev->iSerialNumber) {
         struct usbdevfs_ctrltransfer  ctrl;
-        __u16 buffer[128];
+        // Keep it short enough because some bootloaders are borked if the URB len is > 255
+        // 128 is too big by 1.
+        __u16 buffer[127];
         int result;
 
         memset(buffer, 0, sizeof(buffer));
@@ -162,23 +164,23 @@
         ifc = (void*) ptr;
         len -= ifc->bLength;
         ptr += ifc->bLength;
-        
+
         in = -1;
         out = -1;
         info.ifc_class = ifc->bInterfaceClass;
         info.ifc_subclass = ifc->bInterfaceSubClass;
         info.ifc_protocol = ifc->bInterfaceProtocol;
-        
+
         for(e = 0; e < ifc->bNumEndpoints; e++) {
             if(check(ptr, len, USB_DT_ENDPOINT, USB_DT_ENDPOINT_SIZE))
                 return -1;
             ept = (void*) ptr;
             len -= ept->bLength;
             ptr += ept->bLength;
-    
+
             if((ept->bmAttributes & 0x03) != 0x02)
                 continue;
-            
+
             if(ept->bEndpointAddress & 0x80) {
                 in = ept->bEndpointAddress;
             } else {
@@ -188,7 +190,7 @@
 
         info.has_bulk_in = (in != -1);
         info.has_bulk_out = (out != -1);
-        
+
         if(callback(&info) == 0) {
             *ept_in_id = in;
             *ept_out_id = out;
@@ -206,25 +208,25 @@
     char busname[64], devname[64];
     char desc[1024];
     int n, in, out, ifc;
-    
+
     DIR *busdir, *devdir;
     struct dirent *de;
     int fd;
     int writable;
-    
+
     busdir = opendir(base);
     if(busdir == 0) return 0;
 
     while((de = readdir(busdir)) && (usb == 0)) {
         if(badname(de->d_name)) continue;
-        
+
         sprintf(busname, "%s/%s", base, de->d_name);
         devdir = opendir(busname);
         if(devdir == 0) continue;
-        
+
 //        DBG("[ scanning %s ]\n", busname);
         while((de = readdir(devdir)) && (usb == 0)) {
-            
+
             if(badname(de->d_name)) continue;
             sprintf(devname, "%s/%s", busname, de->d_name);
 
@@ -240,7 +242,7 @@
             }
 
             n = read(fd, desc, sizeof(desc));
-            
+
             if(filter_usb_device(fd, desc, n, writable, callback,
                                  &in, &out, &ifc) == 0) {
                 usb = calloc(1, sizeof(usb_handle));
@@ -277,13 +279,13 @@
     if(h->ep_out == 0) {
         return -1;
     }
-    
+
     if(len == 0) {
         bulk.ep = h->ep_out;
         bulk.len = 0;
         bulk.data = data;
         bulk.timeout = 0;
-        
+
         n = ioctl(h->desc, USBDEVFS_BULK, &bulk);
         if(n != 0) {
             fprintf(stderr,"ERROR: n = %d, errno = %d (%s)\n",
@@ -292,16 +294,16 @@
         }
         return 0;
     }
-    
+
     while(len > 0) {
         int xfer;
         xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;
-        
+
         bulk.ep = h->ep_out;
         bulk.len = xfer;
         bulk.data = data;
         bulk.timeout = 0;
-        
+
         n = ioctl(h->desc, USBDEVFS_BULK, &bulk);
         if(n != xfer) {
             DBG("ERROR: n = %d, errno = %d (%s)\n",
@@ -327,10 +329,10 @@
     if(h->ep_in == 0) {
         return -1;
     }
-    
+
     while(len > 0) {
         int xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;
-        
+
         bulk.ep = h->ep_in;
         bulk.len = xfer;
         bulk.data = data;
@@ -353,12 +355,12 @@
         count += n;
         len -= n;
         data += n;
-        
+
         if(n < xfer) {
             break;
         }
     }
-    
+
     return count;
 }
 
@@ -377,7 +379,7 @@
 int usb_close(usb_handle *h)
 {
     int fd;
-    
+
     fd = h->desc;
     h->desc = -1;
     if(fd >= 0) {
diff --git a/fastboot/usb_osx.c b/fastboot/usb_osx.c
index 6df5d2c..cbce9bd 100644
--- a/fastboot/usb_osx.c
+++ b/fastboot/usb_osx.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -55,7 +55,7 @@
     int success;
     ifc_match_func callback;
     usb_ifc_info info;
-    
+
     UInt8 bulkIn;
     UInt8 bulkOut;
     IOUSBInterfaceInterface190 **interface;
@@ -132,7 +132,7 @@
             // continue so we can try the next interface
             continue;
         }
-        
+
         /*
          * Now open the interface. This will cause the pipes
          * associated with the endpoints in the interface descriptor
@@ -149,7 +149,7 @@
          * use the interface. Maybe something needs to be done about
          * this situation.
          */
-        
+
         kr = (*interface)->USBInterfaceOpen(interface);
 
         if (kr != 0) {
@@ -158,7 +158,7 @@
             // continue so we can try the next interface
             continue;
         }
-        
+
         // Get the number of endpoints associated with this interface.
         kr = (*interface)->GetNumEndpoints(interface, &interfaceNumEndpoints);
 
@@ -242,10 +242,10 @@
                     ERR("could not clear output pipe; result %x, ignoring....\n", kr);
                 }
             }
-            
+
             return 0;
         }
-        
+
 next_interface:
         (*interface)->USBInterfaceClose(interface);
         (*interface)->Release(interface);
@@ -284,7 +284,7 @@
         goto error;
     }
 
-    /* 
+    /*
      * We don't need the intermediate interface after the device interface
      * is created.
      */
@@ -339,7 +339,7 @@
 
         if (kr == kIOReturnSuccess && req.wLenDone > 0) {
             int i, count;
-            
+
             // skip first word, and copy the rest to the serial string, changing shorts to bytes.
             count = (req.wLenDone - 1) / 2;
             for (i = 0; i < count; i++)
@@ -364,8 +364,8 @@
     if (dev != NULL) {
         (*dev)->Release(dev);
     }
-    
-    return -1;    
+
+    return -1;
 }
 
 
@@ -399,7 +399,7 @@
         ERR("Could not create iterator.");
         return -1;
     }
-    
+
     for (;;) {
         if (! IOIteratorIsValid(iterator)) {
             /*
@@ -409,7 +409,7 @@
             IOIteratorReset(iterator);
             continue;
         }
-                
+
         io_service_t device = IOIteratorNext(iterator);
 
         if (device == 0) {
diff --git a/fastboot/usb_windows.c b/fastboot/usb_windows.c
index 1050293..99027cc 100644
--- a/fastboot/usb_windows.c
+++ b/fastboot/usb_windows.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -51,13 +51,13 @@
 struct usb_handle {
     /// Handle to USB interface
     ADBAPIHANDLE  adb_interface;
-    
+
     /// Handle to USB read pipe (endpoint)
     ADBAPIHANDLE  adb_read_pipe;
-    
+
     /// Handle to USB write pipe (endpoint)
     ADBAPIHANDLE  adb_write_pipe;
-    
+
     /// Interface name
     char*         interface_name;
 };
@@ -303,7 +303,7 @@
     info.ifc_subclass = interf_desc.bInterfaceSubClass;
     info.ifc_protocol = interf_desc.bInterfaceProtocol;
     info.writable = 1;
-    
+
     // read serial number (if there is one)
     unsigned long serial_number_len = sizeof(info.serial_number);
     if (!AdbGetSerialNumber(handle->adb_interface, info.serial_number,
diff --git a/fastboot/usbtest.c b/fastboot/usbtest.c
index e34d7e6..b8fb9e2 100644
--- a/fastboot/usbtest.c
+++ b/fastboot/usbtest.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -38,11 +38,11 @@
 static unsigned arg_size = 4096;
 static unsigned arg_count = 4096;
 
-long long NOW(void) 
+long long NOW(void)
 {
     struct timeval tv;
     gettimeofday(&tv, 0);
-    
+
     return (((long long) tv.tv_sec) * ((long long) 1000000)) +
         (((long long) tv.tv_usec));
 }
@@ -110,7 +110,7 @@
     int i;
     unsigned char buf[4096];
     long long t0, t1;
-    
+
     t0 = NOW();
     for(i = 0; i < arg_count; i++) {
         if(usb_read(usb, buf, arg_size) != arg_size) {
@@ -123,7 +123,7 @@
     return 0;
 }
 
-struct 
+struct
 {
     const char *cmd;
     ifc_match_func match;
@@ -179,12 +179,12 @@
 {
     usb_handle *usb;
     int i;
-    
+
     if(argc < 2)
         return usage();
 
     if(argc > 2) {
-        if(process_args(argc - 2, argv + 2)) 
+        if(process_args(argc - 2, argv + 2))
             return -1;
     }
 
diff --git a/fastboot/util_linux.c b/fastboot/util_linux.c
index 912e16f..91c3776 100644
--- a/fastboot/util_linux.c
+++ b/fastboot/util_linux.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -38,7 +38,7 @@
 {
     char proc[64];
     char *x;
-    
+
     sprintf(proc, "/proc/%d/exe", getpid());
     int err = readlink(proc, path, PATH_MAX - 1);
 
diff --git a/fastboot/util_osx.c b/fastboot/util_osx.c
index b43e316..26b832a 100644
--- a/fastboot/util_osx.c
+++ b/fastboot/util_osx.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
diff --git a/fastboot/util_windows.c b/fastboot/util_windows.c
index 37077a4..9e029fd 100644
--- a/fastboot/util_windows.c
+++ b/fastboot/util_windows.c
@@ -9,7 +9,7 @@
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
+ *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -19,7 +19,7 @@
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
@@ -36,6 +36,29 @@
 
 #include <windows.h>
 
+int64_t file_size(const char *fn)
+{
+    HANDLE    file;
+    char     *data;
+    DWORD     sz;
+
+    file = CreateFile( fn,
+                       GENERIC_READ,
+                       FILE_SHARE_READ,
+                       NULL,
+                       OPEN_EXISTING,
+                       0,
+                       NULL );
+
+    if (file == INVALID_HANDLE_VALUE)
+        return -1;
+
+    sz = GetFileSize( file, NULL );
+    CloseHandle( file );
+
+    return sz;
+}
+
 void get_my_path(char exe[PATH_MAX])
 {
 	char*  r;
@@ -52,7 +75,7 @@
 {
     HANDLE    file;
     char     *data;
-    DWORD     file_size;
+    DWORD     sz;
 
     file = CreateFile( fn,
                        GENERIC_READ,
@@ -65,29 +88,29 @@
     if (file == INVALID_HANDLE_VALUE)
         return NULL;
 
-    file_size = GetFileSize( file, NULL );
+    sz = GetFileSize( file, NULL );
     data      = NULL;
 
-    if (file_size > 0) {
-        data = (char*) malloc( file_size );
+    if (sz > 0) {
+        data = (char*) malloc( sz );
         if (data == NULL) {
-            fprintf(stderr, "load_file: could not allocate %ld bytes\n", file_size );
-            file_size = 0;
+            fprintf(stderr, "load_file: could not allocate %ld bytes\n", sz );
+            sz = 0;
         } else {
             DWORD  out_bytes;
 
-            if ( !ReadFile( file, data, file_size, &out_bytes, NULL ) ||
-                 out_bytes != file_size )
+            if ( !ReadFile( file, data, sz, &out_bytes, NULL ) ||
+                 out_bytes != sz )
             {
-                fprintf(stderr, "load_file: could not read %ld bytes from '%s'\n", file_size, fn);
+                fprintf(stderr, "load_file: could not read %ld bytes from '%s'\n", sz, fn);
                 free(data);
                 data      = NULL;
-                file_size = 0;
+                sz = 0;
             }
         }
     }
     CloseHandle( file );
 
-    *_sz = (unsigned) file_size;
+    *_sz = (unsigned) sz;
     return  data;
 }
diff --git a/fs_mgr/Android.mk b/fs_mgr/Android.mk
new file mode 100644
index 0000000..7c66f6a
--- /dev/null
+++ b/fs_mgr/Android.mk
@@ -0,0 +1,33 @@
+# Copyright 2011 The Android Open Source Project
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= fs_mgr.c
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
+
+LOCAL_MODULE:= libfs_mgr
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+
+include $(BUILD_STATIC_LIBRARY)
+
+
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= fs_mgr_main.c
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
+
+LOCAL_MODULE:= fs_mgr
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_FORCE_STATIC_EXECUTABLE := true
+LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)/sbin
+LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
+
+LOCAL_STATIC_LIBRARIES := libfs_mgr libcutils libc
+
+include $(BUILD_EXECUTABLE)
+
diff --git a/fs_mgr/fs_mgr.c b/fs_mgr/fs_mgr.c
new file mode 100644
index 0000000..0361ab8
--- /dev/null
+++ b/fs_mgr/fs_mgr.c
@@ -0,0 +1,611 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* TO DO:
+ *   1. Re-direct fsck output to the kernel log?
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <libgen.h>
+#include <time.h>
+
+#include <private/android_filesystem_config.h>
+#include <cutils/partition_utils.h>
+#include <cutils/properties.h>
+
+#include "fs_mgr_priv.h"
+
+#define KEY_LOC_PROP   "ro.crypto.keyfile.userdata"
+#define KEY_IN_FOOTER  "footer"
+
+#define E2FSCK_BIN      "/system/bin/e2fsck"
+
+struct flag_list {
+    const char *name;
+    unsigned flag;
+};
+
+static struct flag_list mount_flags[] = {
+    { "noatime",    MS_NOATIME },
+    { "noexec",     MS_NOEXEC },
+    { "nosuid",     MS_NOSUID },
+    { "nodev",      MS_NODEV },
+    { "nodiratime", MS_NODIRATIME },
+    { "ro",         MS_RDONLY },
+    { "rw",         0 },
+    { "remount",    MS_REMOUNT },
+    { "defaults",   0 },
+    { 0,            0 },
+};
+
+static struct flag_list fs_mgr_flags[] = {
+    { "wait",        MF_WAIT },
+    { "check",       MF_CHECK },
+    { "encryptable=",MF_CRYPT },
+    { "defaults",    0 },
+    { 0,             0 },
+};
+
+/*
+ * gettime() - returns the time in seconds of the system's monotonic clock or
+ * zero on error.
+ */
+static time_t gettime(void)
+{
+    struct timespec ts;
+    int ret;
+
+    ret = clock_gettime(CLOCK_MONOTONIC, &ts);
+    if (ret < 0) {
+        ERROR("clock_gettime(CLOCK_MONOTONIC) failed: %s\n", strerror(errno));
+        return 0;
+    }
+
+    return ts.tv_sec;
+}
+
+static int wait_for_file(const char *filename, int timeout)
+{
+    struct stat info;
+    time_t timeout_time = gettime() + timeout;
+    int ret = -1;
+
+    while (gettime() < timeout_time && ((ret = stat(filename, &info)) < 0))
+        usleep(10000);
+
+    return ret;
+}
+
+static int parse_flags(char *flags, struct flag_list *fl, char **key_loc,
+                       char *fs_options, int fs_options_len)
+{
+    int f = 0;
+    int i;
+    char *p;
+    char *savep;
+
+    /* initialize key_loc to null, if we find an MF_CRYPT flag,
+     * then we'll set key_loc to the proper value */
+    if (key_loc) {
+        *key_loc = NULL;
+    }
+    /* initialize fs_options to the null string */
+    if (fs_options && (fs_options_len > 0)) {
+        fs_options[0] = '\0';
+    }
+
+    p = strtok_r(flags, ",", &savep);
+    while (p) {
+        /* Look for the flag "p" in the flag list "fl"
+         * If not found, the loop exits with fl[i].name being null.
+         */
+        for (i = 0; fl[i].name; i++) {
+            if (!strncmp(p, fl[i].name, strlen(fl[i].name))) {
+                f |= fl[i].flag;
+                if ((fl[i].flag == MF_CRYPT) && key_loc) {
+                    /* The encryptable flag is followed by an = and the
+                     * location of the keys.  Get it and return it.
+                     */
+                    *key_loc = strdup(strchr(p, '=') + 1);
+                }
+                break;
+            }
+        }
+
+        if (!fl[i].name) {
+            if (fs_options) {
+                /* It's not a known flag, so it must be a filesystem specific
+                 * option.  Add it to fs_options if it was passed in.
+                 */
+                strlcat(fs_options, p, fs_options_len);
+                strlcat(fs_options, ",", fs_options_len);
+            } else {
+                /* fs_options was not passed in, so if the flag is unknown
+                 * it's an error.
+                 */
+                ERROR("Warning: unknown flag %s\n", p);
+            }
+        }
+        p = strtok_r(NULL, ",", &savep);
+    }
+
+out:
+    if (fs_options && fs_options[0]) {
+        /* remove the last trailing comma from the list of options */
+        fs_options[strlen(fs_options) - 1] = '\0';
+    }
+
+    return f;
+}
+
+/* Read a line of text till the next newline character.
+ * If no newline is found before the buffer is full, continue reading till a new line is seen,
+ * then return an empty buffer.  This effectively ignores lines that are too long.
+ * On EOF, return null.
+ */
+static char *getline(char *buf, int size, FILE *file)
+{
+    int cnt = 0;
+    int eof = 0;
+    int eol = 0;
+    int c;
+
+    if (size < 1) {
+        return NULL;
+    }
+
+    while (cnt < (size - 1)) {
+        c = getc(file);
+        if (c == EOF) {
+            eof = 1;
+            break;
+        }
+
+        *(buf + cnt) = c;
+        cnt++;
+
+        if (c == '\n') {
+            eol = 1;
+            break;
+        }
+    }
+
+    /* Null terminate what we've read */
+    *(buf + cnt) = '\0';
+
+    if (eof) {
+        if (cnt) {
+            return buf;
+        } else {
+            return NULL;
+        }
+    } else if (eol) {
+        return buf;
+    } else {
+        /* The line is too long.  Read till a newline or EOF.
+         * If EOF, return null, if newline, return an empty buffer.
+         */
+        while(1) {
+            c = getc(file);
+            if (c == EOF) {
+                return NULL;
+            } else if (c == '\n') {
+                *buf = '\0';
+                return buf;
+            }
+        }
+    }
+}
+
+static struct fstab_rec *read_fstab(char *fstab_path)
+{
+    FILE *fstab_file;
+    int cnt, entries;
+    int len;
+    char line[256];
+    const char *delim = " \t";
+    char *save_ptr, *p;
+    struct fstab_rec *fstab;
+    char *key_loc;
+#define FS_OPTIONS_LEN 1024
+    char tmp_fs_options[FS_OPTIONS_LEN];
+
+    fstab_file = fopen(fstab_path, "r");
+    if (!fstab_file) {
+        ERROR("Cannot open file %s\n", fstab_path);
+        return 0;
+    }
+
+    entries = 0;
+    while (getline(line, sizeof(line), fstab_file)) {
+        /* if the last character is a newline, shorten the string by 1 byte */
+        len = strlen(line);
+        if (line[len - 1] == '\n') {
+            line[len - 1] = '\0';
+        }
+        /* Skip any leading whitespace */
+        p = line;
+        while (isspace(*p)) {
+            p++;
+        }
+        /* ignore comments or empty lines */
+        if (*p == '#' || *p == '\0')
+            continue;
+        entries++;
+    }
+
+    if (!entries) {
+        ERROR("No entries found in fstab\n");
+        return 0;
+    }
+
+    fstab = calloc(entries + 1, sizeof(struct fstab_rec));
+
+    fseek(fstab_file, 0, SEEK_SET);
+
+    cnt = 0;
+    while (getline(line, sizeof(line), fstab_file)) {
+        /* if the last character is a newline, shorten the string by 1 byte */
+        len = strlen(line);
+        if (line[len - 1] == '\n') {
+            line[len - 1] = '\0';
+        }
+
+        /* Skip any leading whitespace */
+        p = line;
+        while (isspace(*p)) {
+            p++;
+        }
+        /* ignore comments or empty lines */
+        if (*p == '#' || *p == '\0')
+            continue;
+
+        /* If a non-comment entry is greater than the size we allocated, give an
+         * error and quit.  This can happen in the unlikely case the file changes
+         * between the two reads.
+         */
+        if (cnt >= entries) {
+            ERROR("Tried to process more entries than counted\n");
+            break;
+        }
+
+        if (!(p = strtok_r(line, delim, &save_ptr))) {
+            ERROR("Error parsing mount source\n");
+            return 0;
+        }
+        fstab[cnt].blk_dev = strdup(p);
+
+        if (!(p = strtok_r(NULL, delim, &save_ptr))) {
+            ERROR("Error parsing mnt_point\n");
+            return 0;
+        }
+        fstab[cnt].mnt_point = strdup(p);
+
+        if (!(p = strtok_r(NULL, delim, &save_ptr))) {
+            ERROR("Error parsing fs_type\n");
+            return 0;
+        }
+        fstab[cnt].type = strdup(p);
+
+        if (!(p = strtok_r(NULL, delim, &save_ptr))) {
+            ERROR("Error parsing mount_flags\n");
+            return 0;
+        }
+        tmp_fs_options[0] = '\0';
+        fstab[cnt].flags = parse_flags(p, mount_flags, 0, tmp_fs_options, FS_OPTIONS_LEN);
+
+        /* fs_options are optional */
+        if (tmp_fs_options[0]) {
+            fstab[cnt].fs_options = strdup(tmp_fs_options);
+        } else {
+            fstab[cnt].fs_options = NULL;
+        }
+
+        if (!(p = strtok_r(NULL, delim, &save_ptr))) {
+            ERROR("Error parsing fs_mgr_options\n");
+            return 0;
+        }
+        fstab[cnt].fs_mgr_flags = parse_flags(p, fs_mgr_flags, &key_loc, 0, 0);
+        fstab[cnt].key_loc = key_loc;
+
+        cnt++;
+    }
+    fclose(fstab_file);
+
+    return fstab;
+}
+
+static void free_fstab(struct fstab_rec *fstab)
+{
+    int i = 0;
+
+    while (fstab[i].blk_dev) {
+        /* Free the pointers return by strdup(3) */
+        free(fstab[i].blk_dev);
+        free(fstab[i].mnt_point);
+        free(fstab[i].type);
+        free(fstab[i].fs_options);
+        free(fstab[i].key_loc);
+
+        i++;
+    }
+
+    /* Free the actual fstab array created by calloc(3) */
+    free(fstab);
+}
+
+static void check_fs(char *blk_dev, char *type)
+{
+    pid_t pid;
+    int status;
+
+    /* Check for the types of filesystems we know how to check */
+    if (!strcmp(type, "ext2") || !strcmp(type, "ext3") || !strcmp(type, "ext4")) {
+        INFO("Running %s on %s\n", E2FSCK_BIN, blk_dev);
+        pid = fork();
+        if (pid > 0) {
+            /* Parent, wait for the child to return */
+            waitpid(pid, &status, 0);
+        } else if (pid == 0) {
+            /* child, run checker */
+            execlp(E2FSCK_BIN, E2FSCK_BIN, "-y", blk_dev, (char *)NULL);
+
+            /* Only gets here on error */
+            ERROR("Cannot run fs_mgr binary %s\n", E2FSCK_BIN);
+        } else {
+            /* No need to check for error in fork, we can't really handle it now */
+            ERROR("Fork failed trying to run %s\n", E2FSCK_BIN);
+        }
+    }
+
+    return;
+}
+
+static void remove_trailing_slashes(char *n)
+{
+    int len;
+
+    len = strlen(n) - 1;
+    while ((*(n + len) == '/') && len) {
+      *(n + len) = '\0';
+      len--;
+    }
+}
+
+static int fs_match(char *in1, char *in2)
+{
+    char *n1;
+    char *n2;
+    int ret;
+
+    n1 = strdup(in1);
+    n2 = strdup(in2);
+
+    remove_trailing_slashes(n1);
+    remove_trailing_slashes(n2);
+
+    ret = !strcmp(n1, n2);
+
+    free(n1);
+    free(n2);
+
+    return ret;
+}
+
+int fs_mgr_mount_all(char *fstab_file)
+{
+    int i = 0;
+    int encrypted = 0;
+    int ret = -1;
+    int mret;
+    struct fstab_rec *fstab = 0;
+
+    if (!(fstab = read_fstab(fstab_file))) {
+        return ret;
+    }
+
+    for (i = 0; fstab[i].blk_dev; i++) {
+        if (fstab[i].fs_mgr_flags & MF_WAIT) {
+            wait_for_file(fstab[i].blk_dev, WAIT_TIMEOUT);
+        }
+
+        if (fstab[i].fs_mgr_flags & MF_CHECK) {
+            check_fs(fstab[i].blk_dev, fstab[i].type);
+        }
+
+        mret = mount(fstab[i].blk_dev, fstab[i].mnt_point, fstab[i].type,
+                     fstab[i].flags, fstab[i].fs_options);
+        if (!mret) {
+            /* Success!  Go get the next one */
+            continue;
+        }
+
+        /* mount(2) returned an error, check if it's encrypted and deal with it */
+        if ((fstab[i].fs_mgr_flags & MF_CRYPT) && !partition_wiped(fstab[i].blk_dev)) {
+            /* Need to mount a tmpfs at this mountpoint for now, and set
+             * properties that vold will query later for decrypting
+             */
+            if (mount("tmpfs", fstab[i].mnt_point, "tmpfs",
+                  MS_NOATIME | MS_NOSUID | MS_NODEV, CRYPTO_TMPFS_OPTIONS) < 0) {
+                ERROR("Cannot mount tmpfs filesystem for encrypted fs at %s\n",
+                        fstab[i].mnt_point);
+                goto out;
+            }
+            encrypted = 1;
+        } else {
+            ERROR("Cannot mount filesystem on %s at %s\n",
+                    fstab[i].blk_dev, fstab[i].mnt_point);
+            goto out;
+        }
+    }
+
+    if (encrypted) {
+        ret = 1;
+    } else {
+        ret = 0;
+    }
+
+out:
+    free_fstab(fstab);
+    return ret;
+}
+
+/* If tmp_mnt_point is non-null, mount the filesystem there.  This is for the
+ * tmp mount we do to check the user password
+ */
+int fs_mgr_do_mount(char *fstab_file, char *n_name, char *n_blk_dev, char *tmp_mnt_point)
+{
+    int i = 0;
+    int ret = -1;
+    struct fstab_rec *fstab = 0;
+    char *m;
+
+    if (!(fstab = read_fstab(fstab_file))) {
+        return ret;
+    }
+
+    for (i = 0; fstab[i].blk_dev; i++) {
+        if (!fs_match(fstab[i].mnt_point, n_name)) {
+            continue;
+        }
+
+        /* We found our match */
+        /* First check the filesystem if requested */
+        if (fstab[i].fs_mgr_flags & MF_WAIT) {
+            wait_for_file(fstab[i].blk_dev, WAIT_TIMEOUT);
+        }
+
+        if (fstab[i].fs_mgr_flags & MF_CHECK) {
+            check_fs(fstab[i].blk_dev, fstab[i].type);
+        }
+
+        /* Now mount it where requested */
+        if (tmp_mnt_point) {
+            m = tmp_mnt_point;
+        } else {
+            m = fstab[i].mnt_point;
+        }
+        if (mount(n_blk_dev, m, fstab[i].type,
+                  fstab[i].flags, fstab[i].fs_options)) {
+            ERROR("Cannot mount filesystem on %s at %s\n",
+                    n_blk_dev, m);
+            goto out;
+        } else {
+            ret = 0;
+            goto out;
+        }
+    }
+
+    /* We didn't find a match, say so and return an error */
+    ERROR("Cannot find mount point %s in fstab\n", fstab[i].mnt_point);
+
+out:
+    free_fstab(fstab);
+    return ret;
+}
+
+/*
+ * mount a tmpfs filesystem at the given point.
+ * return 0 on success, non-zero on failure.
+ */
+int fs_mgr_do_tmpfs_mount(char *n_name)
+{
+    int ret;
+
+    ret = mount("tmpfs", n_name, "tmpfs",
+                MS_NOATIME | MS_NOSUID | MS_NODEV, CRYPTO_TMPFS_OPTIONS);
+    if (ret < 0) {
+        ERROR("Cannot mount tmpfs filesystem at %s\n", n_name);
+        return -1;
+    }
+
+    /* Success */
+    return 0;
+}
+
+int fs_mgr_unmount_all(char *fstab_file)
+{
+    int i = 0;
+    int ret = 0;
+    struct fstab_rec *fstab = 0;
+
+    if (!(fstab = read_fstab(fstab_file))) {
+        return -1;
+    }
+
+    while (fstab[i].blk_dev) {
+        if (umount(fstab[i].mnt_point)) {
+            ERROR("Cannot unmount filesystem at %s\n", fstab[i].mnt_point);
+            ret = -1;
+        }
+        i++;
+    }
+
+    free_fstab(fstab);
+    return ret;
+}
+/*
+ * key_loc must be at least PROPERTY_VALUE_MAX bytes long
+ *
+ * real_blk_dev must be at least PROPERTY_VALUE_MAX bytes long
+ */
+int fs_mgr_get_crypt_info(char *fstab_file, char *key_loc, char *real_blk_dev, int size)
+{
+    int i = 0;
+    struct fstab_rec *fstab = 0;
+
+    if (!(fstab = read_fstab(fstab_file))) {
+        return -1;
+    }
+    /* Initialize return values to null strings */
+    if (key_loc) {
+        *key_loc = '\0';
+    }
+    if (real_blk_dev) {
+        *real_blk_dev = '\0';
+    }
+
+    /* Look for the encryptable partition to find the data */
+    for (i = 0; fstab[i].blk_dev; i++) {
+        if (!(fstab[i].fs_mgr_flags & MF_CRYPT)) {
+            continue;
+        }
+
+        /* We found a match */
+        if (key_loc) {
+            strlcpy(key_loc, fstab[i].key_loc, size);
+        }
+        if (real_blk_dev) {
+            strlcpy(real_blk_dev, fstab[i].blk_dev, size);
+        }
+        break;
+    }
+
+    free_fstab(fstab);
+    return 0;
+}
+
diff --git a/fs_mgr/fs_mgr_main.c b/fs_mgr/fs_mgr_main.c
new file mode 100644
index 0000000..81febf1
--- /dev/null
+++ b/fs_mgr/fs_mgr_main.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <libgen.h>
+#include "fs_mgr_priv.h"
+
+char *me = "";
+
+static void usage(void)
+{
+    ERROR("%s: usage: %s <-a | -n mnt_point blk_dev | -u> <fstab_file>\n", me, me);
+    exit(1);
+}
+
+/* Parse the command line.  If an error is encountered, print an error message
+ * and exit the program, do not return to the caller.
+ * Return the number of argv[] entries consumed.
+ */
+static void parse_options(int argc, char *argv[], int *a_flag, int *u_flag, int *n_flag,
+                     char **n_name, char **n_blk_dev)
+{
+    me = basename(strdup(argv[0]));
+
+    if (argc <= 1) {
+        usage();
+    }
+
+    if (!strcmp(argv[1], "-a")) {
+        if (argc != 3) {
+            usage();
+        }
+        *a_flag = 1;
+    }
+    if (!strcmp(argv[1], "-n")) {
+        if (argc != 5) {
+            usage();
+        }
+        *n_flag = 1;
+        *n_name = argv[2];
+        *n_blk_dev = argv[3];
+    }
+    if (!strcmp(argv[1], "-u")) {
+        if (argc != 3) {
+            usage();
+        }
+        *u_flag = 1;
+    }
+
+    /* If no flag is specified, it's an error */
+    if (!(*a_flag | *n_flag | *u_flag)) {
+        usage();
+    }
+
+    /* If more than one flag is specified, it's an error */
+    if ((*a_flag + *n_flag + *u_flag) > 1) {
+        usage();
+    }
+
+    return;
+}
+
+int main(int argc, char *argv[])
+{
+    int a_flag=0;
+    int u_flag=0;
+    int n_flag=0;
+    char *n_name;
+    char *n_blk_dev;
+    char *fstab;
+
+    klog_init();
+    klog_set_level(6);
+
+    parse_options(argc, argv, &a_flag, &u_flag, &n_flag, &n_name, &n_blk_dev);
+
+    /* The name of the fstab file is last, after the option */
+    fstab = argv[argc - 1];
+
+    if (a_flag) {
+        return fs_mgr_mount_all(fstab);
+    } else if (n_flag) {
+        return fs_mgr_do_mount(fstab, n_name, n_blk_dev, 0);
+    } else if (u_flag) {
+        return fs_mgr_unmount_all(fstab);
+    } else {
+        ERROR("%s: Internal error, unknown option\n", me);
+        exit(1);
+    }
+
+    /* Should not get here */
+    exit(1);
+}
+
diff --git a/fs_mgr/fs_mgr_priv.h b/fs_mgr/fs_mgr_priv.h
new file mode 100644
index 0000000..175fdab
--- /dev/null
+++ b/fs_mgr/fs_mgr_priv.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CORE_FS_MGR_PRIV_H
+#define __CORE_FS_MGR_PRIV_H
+
+#include <cutils/klog.h>
+#include <fs_mgr.h>
+
+#define INFO(x...)    KLOG_INFO("fs_mgr", x)
+#define ERROR(x...)   KLOG_ERROR("fs_mgr", x)
+
+#define CRYPTO_TMPFS_OPTIONS "size=128m,mode=0771,uid=1000,gid=1000"
+
+struct fstab_rec {
+    char *blk_dev;
+    char *mnt_point;
+    char *type;
+    unsigned long flags;
+    char *fs_options;
+    int fs_mgr_flags;
+    char *key_loc;
+};
+
+#define WAIT_TIMEOUT 5
+
+/* fstab has the following format:
+ *
+ * Any line starting with a # is a comment and ignored
+ *
+ * Any blank line is ignored
+ *
+ * All other lines must be in this format:
+ *   <source>  <mount_point> <fs_type> <mount_flags> <fs_options> <fs_mgr_options>
+ *
+ *   <mount_flags> is a comma separated list of flags that can be passed to the
+ *                 mount command.  The list includes noatime, nosuid, nodev, nodiratime,
+ *                 ro, rw, remount, defaults.
+ *
+ *   <fs_options> is a comma separated list of options accepted by the filesystem being
+ *                mounted.  It is passed directly to mount without being parsed
+ *
+ *   <fs_mgr_options> is a comma separated list of flags that control the operation of
+ *                     the fs_mgr program.  The list includes "wait", which will wait till
+ *                     the <source> file exists, and "check", which requests that the fs_mgr 
+ *                     run an fscheck program on the <source> before mounting the filesystem.
+ *                     If check is specifed on a read-only filesystem, it is ignored.
+ *                     Also, "encryptable" means that filesystem can be encrypted.
+ *                     The "encryptable" flag _MUST_ be followed by a : and a string which
+ *                     is the location of the encryption keys.  I can either be a path
+ *                     to a file or partition which contains the keys, or the word "footer"
+ *                     which means the keys are in the last 16 Kbytes of the partition
+ *                     containing the filesystem.
+ *
+ * When the fs_mgr is requested to mount all filesystems, it will first mount all the
+ * filesystems that do _NOT_ specify check (including filesystems that are read-only and
+ * specify check, because check is ignored in that case) and then it will check and mount
+ * filesystem marked with check.
+ *
+ */
+
+#define MF_WAIT      0x1
+#define MF_CHECK     0x2
+#define MF_CRYPT     0x4
+
+#endif /* __CORE_FS_MGR_PRIV_H */
+
diff --git a/fs_mgr/include/fs_mgr.h b/fs_mgr/include/fs_mgr.h
new file mode 100644
index 0000000..76abb83
--- /dev/null
+++ b/fs_mgr/include/fs_mgr.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CORE_FS_MGR_H
+#define __CORE_FS_MGR_H
+
+int fs_mgr_mount_all(char *fstab_file);
+int fs_mgr_do_mount(char *fstab_file, char *n_name, char *n_blk_dev, char *tmp_mnt_point);
+int fs_mgr_do_tmpfs_mount(char *n_name);
+int fs_mgr_unmount_all(char *fstab_file);
+int fs_mgr_get_crypt_info(char *fstab_file, char *key_loc, char *real_blk_dev, int size);
+
+#endif /* __CORE_FS_MGR_H */
+
diff --git a/include/arch/darwin-x86/AndroidConfig.h b/include/arch/darwin-x86/AndroidConfig.h
index c8ccc7e..48f8d9a 100644
--- a/include/arch/darwin-x86/AndroidConfig.h
+++ b/include/arch/darwin-x86/AndroidConfig.h
@@ -109,7 +109,7 @@
 /*
  * Define this if we have localtime_r().
  */
-#define HAVE_LOCALTIME_R
+#define HAVE_LOCALTIME_R 1
 
 /*
  * Define this if we have gethostbyname_r().
@@ -305,4 +305,14 @@
  */
 #define HAVE_PRINTF_ZD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 1
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 0
+
 #endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/freebsd-x86/AndroidConfig.h b/include/arch/freebsd-x86/AndroidConfig.h
index d828bd5..4bc5559 100644
--- a/include/arch/freebsd-x86/AndroidConfig.h
+++ b/include/arch/freebsd-x86/AndroidConfig.h
@@ -114,7 +114,7 @@
 /*
  * Define this if we have localtime_r().
  */
-#define HAVE_LOCALTIME_R
+#define HAVE_LOCALTIME_R 1
 
 /*
  * Define this if we have gethostbyname_r().
@@ -363,4 +363,14 @@
  */
 #define HAVE_PRINTF_ZD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 1
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 0
+
 #endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/linux-arm/AndroidConfig.h b/include/arch/linux-arm/AndroidConfig.h
index 7eba7d0..233752b 100644
--- a/include/arch/linux-arm/AndroidConfig.h
+++ b/include/arch/linux-arm/AndroidConfig.h
@@ -122,7 +122,7 @@
 /*
  * Define this if we have localtime_r().
  */
-/* #define HAVE_LOCALTIME_R */
+/* #define HAVE_LOCALTIME_R 1 */
 
 /*
  * Define this if we have gethostbyname_r().
@@ -361,4 +361,14 @@
  */
 #define HAVE_PRINTF_ZD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 0
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 0
+
 #endif /* _ANDROID_CONFIG_H */
diff --git a/include/arch/linux-ppc/AndroidConfig.h b/include/arch/linux-ppc/AndroidConfig.h
index 2ec99f0..ae2569b 100644
--- a/include/arch/linux-ppc/AndroidConfig.h
+++ b/include/arch/linux-ppc/AndroidConfig.h
@@ -109,7 +109,7 @@
 /*
  * Define this if we have localtime_r().
  */
-#define HAVE_LOCALTIME_R
+#define HAVE_LOCALTIME_R 1
 
 /*
  * Define this if we have gethostbyname_r().
@@ -323,4 +323,14 @@
  */
 #define HAVE_PREAD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 0
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 1
+
 #endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/linux-sh/AndroidConfig.h b/include/arch/linux-sh/AndroidConfig.h
index f51caeb..818b628 100644
--- a/include/arch/linux-sh/AndroidConfig.h
+++ b/include/arch/linux-sh/AndroidConfig.h
@@ -122,7 +122,7 @@
 /*
  * Define this if we have localtime_r().
  */
-/* #define HAVE_LOCALTIME_R */
+/* #define HAVE_LOCALTIME_R 1 */
 
 /*
  * Define this if we have gethostbyname_r().
@@ -366,4 +366,14 @@
  */
 #define HAVE_PRINTF_ZD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 0
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 0
+
 #endif /* _ANDROID_CONFIG_H */
diff --git a/include/arch/linux-x86/AndroidConfig.h b/include/arch/linux-x86/AndroidConfig.h
index 24e7797..431a54b 100644
--- a/include/arch/linux-x86/AndroidConfig.h
+++ b/include/arch/linux-x86/AndroidConfig.h
@@ -109,7 +109,7 @@
 /*
  * Define this if we have localtime_r().
  */
-#define HAVE_LOCALTIME_R
+#define HAVE_LOCALTIME_R 1
 
 /*
  * Define this if we have gethostbyname_r().
@@ -333,4 +333,18 @@
  */
 #define HAVE_PRINTF_ZD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 0
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
+#define HAVE_GNU_QSORT_R 1
+#else
+#define HAVE_GNU_QSORT_R 0
+#endif
+
 #endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/target_linux-x86/AndroidConfig.h b/include/arch/target_linux-x86/AndroidConfig.h
index 05dd220..ab53892 100644
--- a/include/arch/target_linux-x86/AndroidConfig.h
+++ b/include/arch/target_linux-x86/AndroidConfig.h
@@ -108,7 +108,7 @@
 /*
  * Define this if we have localtime_r().
  */
-/* #define HAVE_LOCALTIME_R */
+/* #define HAVE_LOCALTIME_R 1 */
 
 /*
  * Define this if we have gethostbyname_r().
@@ -350,4 +350,14 @@
  */
 #define HAVE_PRINTF_ZD 1
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 0
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 0
+
 #endif /* _ANDROID_CONFIG_H */
diff --git a/include/arch/windows/AndroidConfig.h b/include/arch/windows/AndroidConfig.h
index ad890b4..0274da5 100644
--- a/include/arch/windows/AndroidConfig.h
+++ b/include/arch/windows/AndroidConfig.h
@@ -125,7 +125,7 @@
 /*
  * Define this if we have localtime_r().
  */
-/* #define HAVE_LOCALTIME_R */
+/* #define HAVE_LOCALTIME_R 1 */
 
 /*
  * Define this if we have gethostbyname_r().
@@ -338,4 +338,14 @@
  */
 /* #define HAVE_PRINTF_ZD 1 */
 
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
+ */
+#define HAVE_BSD_QSORT_R 0
+
+/*
+ * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
+ */
+#define HAVE_GNU_QSORT_R 0
+
 #endif /*_ANDROID_CONFIG_H*/
diff --git a/include/corkscrew/backtrace.h b/include/corkscrew/backtrace.h
new file mode 100644
index 0000000..556ad04
--- /dev/null
+++ b/include/corkscrew/backtrace.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* A stack unwinder. */
+
+#ifndef _CORKSCREW_BACKTRACE_H
+#define _CORKSCREW_BACKTRACE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/types.h>
+#include <corkscrew/ptrace.h>
+#include <corkscrew/map_info.h>
+#include <corkscrew/symbol_table.h>
+
+/*
+ * Describes a single frame of a backtrace.
+ */
+typedef struct {
+    uintptr_t absolute_pc;     /* absolute PC offset */
+    uintptr_t stack_top;       /* top of stack for this frame */
+    size_t stack_size;         /* size of this stack frame */
+} backtrace_frame_t;
+
+/*
+ * Describes the symbols associated with a backtrace frame.
+ */
+typedef struct {
+    uintptr_t relative_pc;       /* relative frame PC offset from the start of the library,
+                                    or the absolute PC if the library is unknown */
+    uintptr_t relative_symbol_addr; /* relative offset of the symbol from the start of the
+                                    library or 0 if the library is unknown */
+    char* map_name;              /* executable or library name, or NULL if unknown */
+    char* symbol_name;           /* symbol name, or NULL if unknown */
+    char* demangled_name;        /* demangled symbol name, or NULL if unknown */
+} backtrace_symbol_t;
+
+/*
+ * Unwinds the call stack for the current thread of execution.
+ * Populates the backtrace array with the program counters from the call stack.
+ * Returns the number of frames collected, or -1 if an error occurred.
+ */
+ssize_t unwind_backtrace(backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth);
+
+/*
+ * Unwinds the call stack for a thread within this process.
+ * Populates the backtrace array with the program counters from the call stack.
+ * Returns the number of frames collected, or -1 if an error occurred.
+ *
+ * The task is briefly suspended while the backtrace is being collected.
+ */
+ssize_t unwind_backtrace_thread(pid_t tid, backtrace_frame_t* backtrace,
+        size_t ignore_depth, size_t max_depth);
+
+/*
+ * Unwinds the call stack of a task within a remote process using ptrace().
+ * Populates the backtrace array with the program counters from the call stack.
+ * Returns the number of frames collected, or -1 if an error occurred.
+ */
+ssize_t unwind_backtrace_ptrace(pid_t tid, const ptrace_context_t* context,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth);
+
+/*
+ * Gets the symbols for each frame of a backtrace.
+ * The symbols array must be big enough to hold one symbol record per frame.
+ * The symbols must later be freed using free_backtrace_symbols.
+ */
+void get_backtrace_symbols(const backtrace_frame_t* backtrace, size_t frames,
+        backtrace_symbol_t* backtrace_symbols);
+
+/*
+ * Gets the symbols for each frame of a backtrace from a remote process.
+ * The symbols array must be big enough to hold one symbol record per frame.
+ * The symbols must later be freed using free_backtrace_symbols.
+ */
+void get_backtrace_symbols_ptrace(const ptrace_context_t* context,
+        const backtrace_frame_t* backtrace, size_t frames,
+        backtrace_symbol_t* backtrace_symbols);
+
+/*
+ * Frees the storage associated with backtrace symbols.
+ */
+void free_backtrace_symbols(backtrace_symbol_t* backtrace_symbols, size_t frames);
+
+enum {
+    // A hint for how big to make the line buffer for format_backtrace_line
+    MAX_BACKTRACE_LINE_LENGTH = 800,
+};
+
+/**
+ * Formats a line from a backtrace as a zero-terminated string into the specified buffer.
+ */
+void format_backtrace_line(unsigned frameNumber, const backtrace_frame_t* frame,
+        const backtrace_symbol_t* symbol, char* buffer, size_t bufferSize);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_BACKTRACE_H
diff --git a/include/corkscrew/demangle.h b/include/corkscrew/demangle.h
new file mode 100644
index 0000000..04b0225
--- /dev/null
+++ b/include/corkscrew/demangle.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* C++ symbol name demangling. */
+
+#ifndef _CORKSCREW_DEMANGLE_H
+#define _CORKSCREW_DEMANGLE_H
+
+#include <sys/types.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Demangles a C++ symbol name.
+ * If name is NULL or if the name cannot be demangled, returns NULL.
+ * Otherwise, returns a newly allocated string that contains the demangled name.
+ *
+ * The caller must free the returned string using free().
+ */
+char* demangle_symbol_name(const char* name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_DEMANGLE_H
diff --git a/include/corkscrew/map_info.h b/include/corkscrew/map_info.h
new file mode 100644
index 0000000..c5cd8f8
--- /dev/null
+++ b/include/corkscrew/map_info.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Process memory map. */
+
+#ifndef _CORKSCREW_MAP_INFO_H
+#define _CORKSCREW_MAP_INFO_H
+
+#include <sys/types.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct map_info {
+    struct map_info* next;
+    uintptr_t start;
+    uintptr_t end;
+    bool is_readable;
+    bool is_executable;
+    void* data; // arbitrary data associated with the map by the user, initially NULL
+    char name[];
+} map_info_t;
+
+/* Loads memory map from /proc/<tid>/maps. */
+map_info_t* load_map_info_list(pid_t tid);
+
+/* Frees memory map. */
+void free_map_info_list(map_info_t* milist);
+
+/* Finds the memory map that contains the specified address. */
+const map_info_t* find_map_info(const map_info_t* milist, uintptr_t addr);
+
+/* Returns true if the addr is in an readable map. */
+bool is_readable_map(const map_info_t* milist, uintptr_t addr);
+
+/* Returns true if the addr is in an executable map. */
+bool is_executable_map(const map_info_t* milist, uintptr_t addr);
+
+/* Acquires a reference to the memory map for this process.
+ * The result is cached and refreshed automatically.
+ * Make sure to release the map info when done. */
+map_info_t* acquire_my_map_info_list();
+
+/* Releases a reference to the map info for this process that was
+ * previous acquired using acquire_my_map_info_list(). */
+void release_my_map_info_list(map_info_t* milist);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_MAP_INFO_H
diff --git a/include/corkscrew/ptrace.h b/include/corkscrew/ptrace.h
new file mode 100644
index 0000000..172e348
--- /dev/null
+++ b/include/corkscrew/ptrace.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Useful ptrace() utility functions. */
+
+#ifndef _CORKSCREW_PTRACE_H
+#define _CORKSCREW_PTRACE_H
+
+#include <corkscrew/map_info.h>
+#include <corkscrew/symbol_table.h>
+
+#include <sys/types.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Stores information about a process that is used for several different
+ * ptrace() based operations. */
+typedef struct {
+    map_info_t* map_info_list;
+} ptrace_context_t;
+
+/* Describes how to access memory from a process. */
+typedef struct {
+    pid_t tid;
+    const map_info_t* map_info_list;
+} memory_t;
+
+#if __i386__
+/* ptrace() register context. */
+typedef struct pt_regs_x86 {
+    uint32_t ebx;
+    uint32_t ecx;
+    uint32_t edx;
+    uint32_t esi;
+    uint32_t edi;
+    uint32_t ebp;
+    uint32_t eax;
+    uint32_t xds;
+    uint32_t xes;
+    uint32_t xfs;
+    uint32_t xgs;
+    uint32_t orig_eax;
+    uint32_t eip;
+    uint32_t xcs;
+    uint32_t eflags;
+    uint32_t esp;
+    uint32_t xss;
+} pt_regs_x86_t;
+#endif
+
+/*
+ * Initializes a memory structure for accessing memory from this process.
+ */
+void init_memory(memory_t* memory, const map_info_t* map_info_list);
+
+/*
+ * Initializes a memory structure for accessing memory from another process
+ * using ptrace().
+ */
+void init_memory_ptrace(memory_t* memory, pid_t tid);
+
+/*
+ * Reads a word of memory safely.
+ * If the memory is local, ensures that the address is readable before dereferencing it.
+ * Returns false and a value of 0xffffffff if the word could not be read.
+ */
+bool try_get_word(const memory_t* memory, uintptr_t ptr, uint32_t* out_value);
+
+/*
+ * Reads a word of memory safely using ptrace().
+ * Returns false and a value of 0xffffffff if the word could not be read.
+ */
+bool try_get_word_ptrace(pid_t tid, uintptr_t ptr, uint32_t* out_value);
+
+/*
+ * Loads information needed for examining a remote process using ptrace().
+ * The caller must already have successfully attached to the process
+ * using ptrace().
+ *
+ * The context can be used for any threads belonging to that process
+ * assuming ptrace() is attached to them before performing the actual
+ * unwinding.  The context can continue to be used to decode backtraces
+ * even after ptrace() has been detached from the process.
+ */
+ptrace_context_t* load_ptrace_context(pid_t pid);
+
+/*
+ * Frees a ptrace context.
+ */
+void free_ptrace_context(ptrace_context_t* context);
+
+/*
+ * Finds a symbol using ptrace.
+ * Returns the containing map and information about the symbol, or
+ * NULL if one or the other is not available.
+ */
+void find_symbol_ptrace(const ptrace_context_t* context,
+        uintptr_t addr, const map_info_t** out_map_info, const symbol_t** out_symbol);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_PTRACE_H
diff --git a/include/corkscrew/symbol_table.h b/include/corkscrew/symbol_table.h
new file mode 100644
index 0000000..020c8b8
--- /dev/null
+++ b/include/corkscrew/symbol_table.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _CORKSCREW_SYMBOL_TABLE_H
+#define _CORKSCREW_SYMBOL_TABLE_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    uintptr_t start;
+    uintptr_t end;
+    char* name;
+} symbol_t;
+
+typedef struct {
+    symbol_t* symbols;
+    size_t num_symbols;
+} symbol_table_t;
+
+/*
+ * Loads a symbol table from a given file.
+ * Returns NULL on error.
+ */
+symbol_table_t* load_symbol_table(const char* filename);
+
+/*
+ * Frees a symbol table.
+ */
+void free_symbol_table(symbol_table_t* table);
+
+/*
+ * Finds a symbol associated with an address in the symbol table.
+ * Returns NULL if not found.
+ */
+const symbol_t* find_symbol(const symbol_table_t* table, uintptr_t addr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_SYMBOL_TABLE_H
diff --git a/include/cutils/debugger.h b/include/cutils/debugger.h
new file mode 100644
index 0000000..5a8e796
--- /dev/null
+++ b/include/cutils/debugger.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CUTILS_DEBUGGER_H
+#define __CUTILS_DEBUGGER_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DEBUGGER_SOCKET_NAME "android:debuggerd"
+
+typedef enum {
+    // dump a crash
+    DEBUGGER_ACTION_CRASH,
+    // dump a tombstone file
+    DEBUGGER_ACTION_DUMP_TOMBSTONE,
+    // dump a backtrace only back to the socket
+    DEBUGGER_ACTION_DUMP_BACKTRACE,
+} debugger_action_t;
+
+/* message sent over the socket */
+typedef struct {
+    debugger_action_t action;
+    pid_t tid;
+} debugger_msg_t;
+
+/* Dumps a process backtrace, registers, and stack to a tombstone file (requires root).
+ * Stores the tombstone path in the provided buffer.
+ * Returns 0 on success, -1 on error.
+ */
+int dump_tombstone(pid_t tid, char* pathbuf, size_t pathlen);
+
+/* Dumps a process backtrace only to the specified file (requires root).
+ * Returns 0 on success, -1 on error.
+ */
+int dump_backtrace_to_file(pid_t tid, int fd);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CUTILS_DEBUGGER_H */
diff --git a/include/cutils/list.h b/include/cutils/list.h
index eb5a3c8..3881fc9 100644
--- a/include/cutils/list.h
+++ b/include/cutils/list.h
@@ -19,6 +19,10 @@
 
 #include <stddef.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
 struct listnode
 {
     struct listnode *next;
@@ -48,4 +52,8 @@
 #define list_head(list) ((list)->next)
 #define list_tail(list) ((list)->prev)
 
+#ifdef __cplusplus
+};
+#endif /* __cplusplus */
+
 #endif
diff --git a/include/cutils/log.h b/include/cutils/log.h
index 2997a0c..878952e 100644
--- a/include/cutils/log.h
+++ b/include/cutils/log.h
@@ -79,10 +79,6 @@
 #else
 #define ALOGV(...) ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__))
 #endif
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGV
-#define LOGV ALOGV
-#endif
 #endif
 
 #define CONDITION(cond)     (__builtin_expect((cond)!=0, 0))
@@ -96,10 +92,6 @@
     ? ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
     : (void)0 )
 #endif
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGV_IF
-#define LOGV_IF ALOGV_IF
-#endif
 #endif
 
 /*
@@ -107,10 +99,6 @@
  */
 #ifndef ALOGD
 #define ALOGD(...) ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__))
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGD
-#define LOGD ALOGD
-#endif
 #endif
 
 #ifndef ALOGD_IF
@@ -118,10 +106,6 @@
     ( (CONDITION(cond)) \
     ? ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
     : (void)0 )
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGD_IF
-#define LOGD_IF ALOGD_IF
-#endif
 #endif
 
 /*
@@ -129,10 +113,6 @@
  */
 #ifndef ALOGI
 #define ALOGI(...) ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__))
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGI
-#define LOGI ALOGI
-#endif
 #endif
 
 #ifndef ALOGI_IF
@@ -140,10 +120,6 @@
     ( (CONDITION(cond)) \
     ? ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
     : (void)0 )
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGI_IF
-#define LOGI_IF ALOGI_IF
-#endif
 #endif
 
 /*
@@ -151,10 +127,6 @@
  */
 #ifndef ALOGW
 #define ALOGW(...) ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__))
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGW
-#define LOGW ALOGW
-#endif
 #endif
 
 #ifndef ALOGW_IF
@@ -162,10 +134,6 @@
     ( (CONDITION(cond)) \
     ? ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
     : (void)0 )
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGW_IF
-#define LOGW_IF ALOGW_IF
-#endif
 #endif
 
 /*
@@ -173,10 +141,6 @@
  */
 #ifndef ALOGE
 #define ALOGE(...) ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__))
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGE
-#define LOGE ALOGE
-#endif
 #endif
 
 #ifndef ALOGE_IF
@@ -184,10 +148,6 @@
     ( (CONDITION(cond)) \
     ? ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
     : (void)0 )
-// Temporary measure for code still using old LOG macros.
-#ifndef LOGE_IF
-#define LOGE_IF ALOGE_IF
-#endif
 #endif
 
 // ---------------------------------------------------------------------
@@ -202,10 +162,6 @@
 #else
 #define IF_ALOGV() IF_ALOG(LOG_VERBOSE, LOG_TAG)
 #endif
-// Temporary measure for code still using old LOG macros.
-#ifndef IF_LOGV
-#define IF_LOGV IF_ALOGV
-#endif
 #endif
 
 /*
@@ -214,10 +170,6 @@
  */
 #ifndef IF_ALOGD
 #define IF_ALOGD() IF_ALOG(LOG_DEBUG, LOG_TAG)
-// Temporary measure for code still using old LOG macros.
-#ifndef IF_LOGD
-#define IF_LOGD IF_ALOGD
-#endif
 #endif
 
 /*
@@ -226,10 +178,6 @@
  */
 #ifndef IF_ALOGI
 #define IF_ALOGI() IF_ALOG(LOG_INFO, LOG_TAG)
-// Temporary measure for code still using old LOG macros.
-#ifndef IF_LOGI
-#define IF_LOGI IF_ALOGI
-#endif
 #endif
 
 /*
@@ -238,10 +186,6 @@
  */
 #ifndef IF_ALOGW
 #define IF_ALOGW() IF_ALOG(LOG_WARN, LOG_TAG)
-// Temporary measure for code still using old LOG macros.
-#ifndef IF_LOGW
-#define IF_LOGW IF_ALOGW
-#endif
 #endif
 
 /*
@@ -250,10 +194,6 @@
  */
 #ifndef IF_ALOGE
 #define IF_ALOGE() IF_ALOG(LOG_ERROR, LOG_TAG)
-// Temporary measure for code still using old LOG macros.
-#ifndef IF_LOGE
-#define IF_LOGE IF_ALOGE
-#endif
 #endif
 
 
@@ -392,10 +332,6 @@
 #ifndef ALOG_ASSERT
 #define ALOG_ASSERT(cond, ...) LOG_FATAL_IF(!(cond), ## __VA_ARGS__)
 //#define ALOG_ASSERT(cond) LOG_FATAL_IF(!(cond), "Assertion failed: " #cond)
-// Temporary measure for code still using old LOG macros.
-#ifndef LOG_ASSERT
-#define LOG_ASSERT ALOG_ASSERT
-#endif
 #endif
 
 // ---------------------------------------------------------------------
@@ -411,10 +347,6 @@
 #ifndef ALOG
 #define ALOG(priority, tag, ...) \
     LOG_PRI(ANDROID_##priority, tag, __VA_ARGS__)
-// Temporary measure for code still using old LOG macros.
-#ifndef LOG
-#define LOG ALOG
-#endif
 #endif
 
 /*
@@ -439,10 +371,6 @@
 #ifndef IF_ALOG
 #define IF_ALOG(priority, tag) \
     if (android_testLog(ANDROID_##priority, tag))
-// Temporary measure for code still using old LOG macros.
-#ifndef IF_LOG
-#define IF_LOG IF_ALOG
-#endif
 #endif
 
 // ---------------------------------------------------------------------
diff --git a/include/cutils/logger.h b/include/cutils/logger.h
index b60f7ad..04f3fb0 100644
--- a/include/cutils/logger.h
+++ b/include/cutils/logger.h
@@ -12,6 +12,11 @@
 
 #include <stdint.h>
 
+/*
+ * The userspace structure for version 1 of the logger_entry ABI.
+ * This structure is returned to userspace by the kernel logger
+ * driver unless an upgrade to a newer ABI version is requested.
+ */
 struct logger_entry {
     uint16_t    len;    /* length of the payload */
     uint16_t    __pad;  /* no matter what, we get 2 bytes of padding */
@@ -22,14 +27,41 @@
     char        msg[0]; /* the entry's payload */
 };
 
+/*
+ * The userspace structure for version 2 of the logger_entry ABI.
+ * This structure is returned to userspace if ioctl(LOGGER_SET_VERSION)
+ * is called with version==2
+ */
+struct logger_entry_v2 {
+    uint16_t    len;       /* length of the payload */
+    uint16_t    hdr_size;  /* sizeof(struct logger_entry_v2) */
+    int32_t     pid;       /* generating process's pid */
+    int32_t     tid;       /* generating process's tid */
+    int32_t     sec;       /* seconds since Epoch */
+    int32_t     nsec;      /* nanoseconds */
+    uint32_t    euid;      /* effective UID of logger */
+    char        msg[0];    /* the entry's payload */
+};
+
 #define LOGGER_LOG_MAIN		"log/main"
 #define LOGGER_LOG_RADIO	"log/radio"
 #define LOGGER_LOG_EVENTS	"log/events"
 #define LOGGER_LOG_SYSTEM	"log/system"
 
-#define LOGGER_ENTRY_MAX_LEN		(4*1024)
-#define LOGGER_ENTRY_MAX_PAYLOAD	\
-	(LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry))
+/*
+ * The maximum size of the log entry payload that can be
+ * written to the kernel logger driver. An attempt to write
+ * more than this amount to /dev/log/* will result in a
+ * truncated log entry.
+ */
+#define LOGGER_ENTRY_MAX_PAYLOAD	4076
+
+/*
+ * The maximum size of a log entry which can be read from the
+ * kernel logger driver. An attempt to read less than this amount
+ * may result in read() returning EINVAL.
+ */
+#define LOGGER_ENTRY_MAX_LEN		(5*1024)
 
 #ifdef HAVE_IOCTL
 
@@ -41,6 +73,8 @@
 #define LOGGER_GET_LOG_LEN		_IO(__LOGGERIO, 2) /* used log len */
 #define LOGGER_GET_NEXT_ENTRY_LEN	_IO(__LOGGERIO, 3) /* next entry len */
 #define LOGGER_FLUSH_LOG		_IO(__LOGGERIO, 4) /* flush log */
+#define LOGGER_GET_VERSION		_IO(__LOGGERIO, 5) /* abi version */
+#define LOGGER_SET_VERSION		_IO(__LOGGERIO, 6) /* abi version */
 
 #endif // HAVE_IOCTL
 
diff --git a/include/cutils/logprint.h b/include/cutils/logprint.h
index 769c8a7..2b1e1c5 100644
--- a/include/cutils/logprint.h
+++ b/include/cutils/logprint.h
@@ -44,8 +44,8 @@
     time_t tv_sec;
     long tv_nsec;
     android_LogPriority priority;
-    pid_t pid;
-    pthread_t tid;
+    int32_t pid;
+    int32_t tid;
     const char * tag;
     size_t messageLen;
     const char * message;
diff --git a/include/cutils/qsort_r_compat.h b/include/cutils/qsort_r_compat.h
new file mode 100644
index 0000000..479a1ab
--- /dev/null
+++ b/include/cutils/qsort_r_compat.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Provides a portable version of qsort_r, called qsort_r_compat, which is a
+ * reentrant variant of qsort that passes a user data pointer to its comparator.
+ * This implementation follows the BSD parameter convention.
+ */
+
+#ifndef _LIBS_CUTILS_QSORT_R_COMPAT_H
+#define _LIBS_CUTILS_QSORT_R_COMPAT_H
+
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void qsort_r_compat(void* base, size_t nel, size_t width, void* thunk,
+        int (*compar)(void*, const void* , const void* ));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _LIBS_CUTILS_QSORT_R_COMPAT_H
diff --git a/include/cutils/sched_policy.h b/include/cutils/sched_policy.h
index eaf3993..ba84ce3 100644
--- a/include/cutils/sched_policy.h
+++ b/include/cutils/sched_policy.h
@@ -21,14 +21,39 @@
 extern "C" {
 #endif
 
+/* Keep in sync with THREAD_GROUP_* in frameworks/base/core/java/android/os/Process.java */
 typedef enum {
+    SP_DEFAULT    = -1,
     SP_BACKGROUND = 0,
     SP_FOREGROUND = 1,
+    SP_SYSTEM     = 2,  // can't be used with set_sched_policy()
+    SP_AUDIO_APP  = 3,
+    SP_AUDIO_SYS  = 4,
+    SP_CNT,
+    SP_MAX        = SP_CNT - 1,
+    SP_SYSTEM_DEFAULT = SP_FOREGROUND,
 } SchedPolicy;
 
+/* Assign thread tid to the cgroup associated with the specified policy.
+ * If the thread is a thread group leader, that is it's gettid() == getpid(),
+ * then the other threads in the same thread group are _not_ affected.
+ * On platforms which support gettid(), zero tid means current thread.
+ * Return value: 0 for success, or -errno for error.
+ */
 extern int set_sched_policy(int tid, SchedPolicy policy);
+
+/* Return the policy associated with the cgroup of thread tid via policy pointer.
+ * On platforms which support gettid(), zero tid means current thread.
+ * Return value: 0 for success, or -1 for error and set errno.
+ */
 extern int get_sched_policy(int tid, SchedPolicy *policy);
 
+/* Return a displayable string corresponding to policy.
+ * Return value: non-NULL NUL-terminated name of unspecified length;
+ * the caller is responsible for displaying the useful part of the string.
+ */
+extern const char *get_sched_policy_name(SchedPolicy policy);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/cutils/tztime.h b/include/cutils/tztime.h
index cf103ca..36ac25d 100644
--- a/include/cutils/tztime.h
+++ b/include/cutils/tztime.h
@@ -26,8 +26,14 @@
 time_t mktime_tz(struct tm * const tmp, char const * tz);
 void localtime_tz(const time_t * const timep, struct tm * tmp, const char* tz);
 
-#ifndef HAVE_ANDROID_OS
-/* the following is defined in <time.h> in Bionic */
+#ifdef HAVE_ANDROID_OS
+
+/* the following is defined in the Bionic C library on Android, but the
+ * declarations are only available through a platform-private header
+ */
+#include <bionic_time.h>
+
+#else /* !HAVE_ANDROID_OS */
 
 struct strftime_locale {
     const char *mon[12];    /* short names */
diff --git a/include/cutils/uevent.h b/include/cutils/uevent.h
index 4ebc300..4cca7e5 100644
--- a/include/cutils/uevent.h
+++ b/include/cutils/uevent.h
@@ -26,6 +26,7 @@
 
 int uevent_open_socket(int buf_sz, bool passcred);
 ssize_t uevent_kernel_multicast_recv(int socket, void *buffer, size_t length);
+ssize_t uevent_kernel_multicast_uid_recv(int socket, void *buffer, size_t length, uid_t *uid);
 
 #ifdef __cplusplus
 }
diff --git a/include/ion/ion.h b/include/ion/ion.h
new file mode 100644
index 0000000..cafead5
--- /dev/null
+++ b/include/ion/ion.h
@@ -0,0 +1,40 @@
+/*
+ *  ion.c
+ *
+ * Memory Allocator functions for ion
+ *
+ *   Copyright 2011 Google, Inc
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef __SYS_CORE_ION_H
+#define __SYS_CORE_ION_H
+
+#include <linux/ion.h>
+
+__BEGIN_DECLS
+
+int ion_open();
+int ion_close(int fd);
+int ion_alloc(int fd, size_t len, size_t align, unsigned int flags,
+              struct ion_handle **handle);
+int ion_free(int fd, struct ion_handle *handle);
+int ion_map(int fd, struct ion_handle *handle, size_t length, int prot,
+            int flags, off_t offset, unsigned char **ptr, int *map_fd);
+int ion_share(int fd, struct ion_handle *handle, int *share_fd);
+int ion_import(int fd, int share_fd, struct ion_handle **handle);
+
+__END_DECLS
+
+#endif /* __SYS_CORE_ION_H */
diff --git a/include/netutils/dhcp.h b/include/netutils/dhcp.h
index bd16240..d25e58f 100644
--- a/include/netutils/dhcp.h
+++ b/include/netutils/dhcp.h
@@ -30,7 +30,8 @@
                           char *dns1,
                           char *dns2,
                           char *server,
-                          uint32_t  *lease);
+                          uint32_t *lease,
+                          char *vendorInfo);
 extern int dhcp_stop(const char *ifname);
 extern int dhcp_release_lease(const char *ifname);
 extern char *dhcp_get_errmsg();
diff --git a/include/private/android_filesystem_config.h b/include/private/android_filesystem_config.h
index ce1e55d..6521cbe 100644
--- a/include/private/android_filesystem_config.h
+++ b/include/private/android_filesystem_config.h
@@ -53,7 +53,7 @@
 #define AID_KEYSTORE      1017  /* keystore subsystem */
 #define AID_USB           1018  /* USB devices */
 #define AID_DRM           1019  /* DRM server */
-#define AID_AVAILABLE     1020  /* available for use */
+#define AID_MDNSR         1020  /* MulticastDNSResponder (service discovery) */
 #define AID_GPS           1021  /* GPS daemon */
 #define AID_UNUSED1       1022  /* deprecated, DO NOT USE */
 #define AID_MEDIA_RW      1023  /* internal media storage write access */
@@ -61,6 +61,7 @@
 #define AID_UNUSED2       1025  /* deprecated, DO NOT USE */
 #define AID_DRMRPC        1026  /* group for drm rpc */
 #define AID_NFC           1027  /* nfc subsystem */
+#define AID_SDCARD_R      1028  /* external storage read access */
 
 #define AID_SHELL         2000  /* adb and debug shell user */
 #define AID_CACHE         2001  /* cache access */
@@ -79,7 +80,12 @@
 #define AID_MISC          9998  /* access to misc storage */
 #define AID_NOBODY        9999
 
-#define AID_APP          10000 /* first app user */
+#define AID_APP          10000  /* first app user */
+
+#define AID_ISOLATED_START 99000 /* start of uids for fully isolated sandboxed processes */
+#define AID_ISOLATED_END   99999 /* end of uids for fully isolated sandboxed processes */
+
+#define AID_USER        100000  /* offset for uid ranges for each user */
 
 #if !defined(EXCLUDE_FS_CONFIG_STRUCTURES)
 struct android_id_info {
@@ -105,7 +111,7 @@
     { "install",   AID_INSTALL, },
     { "media",     AID_MEDIA, },
     { "drm",       AID_DRM, },
-    { "available", AID_AVAILABLE, },
+    { "mdnsr",     AID_MDNSR, },
     { "nfc",       AID_NFC, },
     { "drmrpc",    AID_DRMRPC, },
     { "shell",     AID_SHELL, },
@@ -113,6 +119,7 @@
     { "diag",      AID_DIAG, },
     { "net_bt_admin", AID_NET_BT_ADMIN, },
     { "net_bt",    AID_NET_BT, },
+    { "sdcard_r",  AID_SDCARD_R, },
     { "sdcard_rw", AID_SDCARD_RW, },
     { "media_rw",  AID_MEDIA_RW, },
     { "vpn",       AID_VPN, },
@@ -131,7 +138,7 @@
 
 #define android_id_count \
     (sizeof(android_ids) / sizeof(android_ids[0]))
-    
+
 struct fs_path_config {
     unsigned mode;
     unsigned uid;
@@ -217,6 +224,8 @@
     { 00755, AID_ROOT,      AID_ROOT,      "bin/*" },
     { 00750, AID_ROOT,      AID_SHELL,     "init*" },
     { 00750, AID_ROOT,      AID_SHELL,     "charger*" },
+    { 00750, AID_ROOT,      AID_SHELL,     "sbin/fs_mgr" },
+    { 00640, AID_ROOT,      AID_SHELL,     "fstab.*" },
     { 00644, AID_ROOT,      AID_ROOT,       0 },
 };
 
@@ -225,7 +234,7 @@
 {
     struct fs_path_config *pc;
     int plen;
-    
+
     pc = dir ? android_dirs : android_files;
     plen = strlen(path);
     for(; pc->prefix; pc++){
@@ -245,9 +254,9 @@
     *uid = pc->uid;
     *gid = pc->gid;
     *mode = (*mode & (~07777)) | pc->mode;
-    
+
 #if 0
-    fprintf(stderr,"< '%s' '%s' %d %d %o >\n", 
+    fprintf(stderr,"< '%s' '%s' %d %d %o >\n",
             path, pc->prefix ? pc->prefix : "", *uid, *gid, *mode);
 #endif
 }
diff --git a/include/sync/sync.h b/include/sync/sync.h
new file mode 100644
index 0000000..6aa5f2d
--- /dev/null
+++ b/include/sync/sync.h
@@ -0,0 +1,45 @@
+/*
+ *  sync.h
+ *
+ *   Copyright 2012 Google, Inc
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef __SYS_CORE_SYNC_H
+#define __SYS_CORE_SYNC_H
+
+#include <linux/sync.h>
+#include <linux/sw_sync.h>
+
+__BEGIN_DECLS
+
+/* timeout in msecs */
+int sync_wait(int fd, unsigned int timeout);
+int sync_merge(const char *name, int fd1, int fd2);
+struct sync_fence_info_data *sync_fence_info(int fd);
+struct sync_pt_info *sync_pt_info(struct sync_fence_info_data *info,
+                                  struct sync_pt_info *itr);
+void sync_fence_info_free(struct sync_fence_info_data *info);
+
+/* sw_sync is mainly inteded for testing and should not be complied into
+ * production kernels
+ */
+
+int sw_sync_timeline_create(void);
+int sw_sync_timeline_inc(int fd, unsigned count);
+int sw_sync_fence_create(int fd, const char *name, unsigned value);
+
+__END_DECLS
+
+#endif /* __SYS_CORE_SYNC_H */
diff --git a/include/system/audio.h b/include/system/audio.h
index 52ba5e7..3807317 100644
--- a/include/system/audio.h
+++ b/include/system/audio.h
@@ -250,7 +250,9 @@
                                AUDIO_CHANNEL_IN_Z_AXIS |
                                AUDIO_CHANNEL_IN_VOICE_UPLINK |
                                AUDIO_CHANNEL_IN_VOICE_DNLINK),
-} audio_channels_t;
+};
+
+typedef uint32_t audio_channel_mask_t;
 
 typedef enum {
     AUDIO_MODE_INVALID          = -2,
@@ -288,6 +290,8 @@
     AUDIO_DEVICE_OUT_AUX_DIGITAL               = 0x400,
     AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET         = 0x800,
     AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET         = 0x1000,
+    AUDIO_DEVICE_OUT_USB_ACCESSORY             = 0x2000,
+    AUDIO_DEVICE_OUT_USB_DEVICE                = 0x4000,
     AUDIO_DEVICE_OUT_DEFAULT                   = 0x8000,
     AUDIO_DEVICE_OUT_ALL      = (AUDIO_DEVICE_OUT_EARPIECE |
                                  AUDIO_DEVICE_OUT_SPEAKER |
@@ -302,6 +306,8 @@
                                  AUDIO_DEVICE_OUT_AUX_DIGITAL |
                                  AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET |
                                  AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET |
+                                 AUDIO_DEVICE_OUT_USB_ACCESSORY |
+                                 AUDIO_DEVICE_OUT_USB_DEVICE |
                                  AUDIO_DEVICE_OUT_DEFAULT),
     AUDIO_DEVICE_OUT_ALL_A2DP = (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
                                  AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
@@ -309,6 +315,8 @@
     AUDIO_DEVICE_OUT_ALL_SCO  = (AUDIO_DEVICE_OUT_BLUETOOTH_SCO |
                                  AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET |
                                  AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
+    AUDIO_DEVICE_OUT_ALL_USB  = (AUDIO_DEVICE_OUT_USB_ACCESSORY |
+                                 AUDIO_DEVICE_OUT_USB_DEVICE),
 
     /* input devices */
     AUDIO_DEVICE_IN_COMMUNICATION         = 0x10000,
@@ -333,6 +341,29 @@
     AUDIO_DEVICE_IN_ALL_SCO = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET,
 } audio_devices_t;
 
+/* the audio output flags serve two purposes:
+ * - when an AudioTrack is created they indicate a "wish" to be connected to an
+ * output stream with attributes corresponding to the specified flags
+ * - when present in an output profile descriptor listed for a particular audio
+ * hardware module, they indicate that an output stream can be opened that
+ * supports the attributes indicated by the flags.
+ * the audio policy manager will try to match the flags in the request
+ * (when getOuput() is called) to an available output stream.
+ */
+typedef enum {
+    AUDIO_OUTPUT_FLAG_NONE = 0x0,       // no attributes
+    AUDIO_OUTPUT_FLAG_DIRECT = 0x1,     // this output directly connects a track
+                                        // to one output stream: no software mixer
+    AUDIO_OUTPUT_FLAG_PRIMARY = 0x2,    // this output is the primary output of
+                                        // the device. It is unique and must be
+                                        // present. It is opened by default and
+                                        // receives routing, audio mode and volume
+                                        // controls related to voice calls.
+    AUDIO_OUTPUT_FLAG_FAST = 0x4,       // output supports "fast tracks",
+                                        // defined elsewhere
+    AUDIO_OUTPUT_FLAG_DEEP_BUFFER = 0x8 // use deep audio buffers
+} audio_output_flags_t;
+
 static inline bool audio_is_output_device(audio_devices_t device)
 {
     if ((popcount(device) == 1) && ((device & ~AUDIO_DEVICE_OUT_ALL) == 0))
@@ -366,6 +397,14 @@
         return false;
 }
 
+static inline bool audio_is_usb_device(audio_devices_t device)
+{
+    if ((popcount(device) == 1) && (device & AUDIO_DEVICE_OUT_ALL_USB))
+        return true;
+    else
+        return false;
+}
+
 static inline bool audio_is_input_channel(uint32_t channel)
 {
     if ((channel & ~AUDIO_CHANNEL_IN_ALL) == 0)
@@ -382,7 +421,52 @@
         return false;
 }
 
-static inline bool audio_is_valid_format(uint32_t format)
+/* Derive an output channel mask from a channel count.
+ * This is to be used when the content channel mask is unknown. The 1, 2, 4, 5, 6, 7 and 8 channel
+ * cases are mapped to the standard game/home-theater layouts, but note that 4 is mapped to quad,
+ * and not stereo + FC + mono surround. A channel count of 3 is arbitrarily mapped to stereo + FC
+ * for continuity with stereo.
+ * Returns the matching channel mask, or 0 if the number of channels exceeds that of the
+ * configurations for which a default channel mask is defined.
+ */
+static inline audio_channel_mask_t audio_channel_out_mask_from_count(uint32_t channel_count)
+{
+    switch(channel_count) {
+    case 1:
+        return AUDIO_CHANNEL_OUT_MONO;
+    case 2:
+        return AUDIO_CHANNEL_OUT_STEREO;
+    case 3:
+        return (AUDIO_CHANNEL_OUT_STEREO | AUDIO_CHANNEL_OUT_FRONT_CENTER);
+    case 4: // 4.0
+        return AUDIO_CHANNEL_OUT_QUAD;
+    case 5: // 5.0
+        return (AUDIO_CHANNEL_OUT_QUAD | AUDIO_CHANNEL_OUT_FRONT_CENTER);
+    case 6: // 5.1
+        return AUDIO_CHANNEL_OUT_5POINT1;
+    case 7: // 6.1
+        return (AUDIO_CHANNEL_OUT_5POINT1 | AUDIO_CHANNEL_OUT_BACK_CENTER);
+    case 8:
+        return AUDIO_CHANNEL_OUT_7POINT1;
+    default:
+        return 0;
+    }
+}
+
+/* Similar to above, but for input.  Currently handles only mono and stereo. */
+static inline audio_channel_mask_t audio_channel_in_mask_from_count(uint32_t channel_count)
+{
+    switch (channel_count) {
+    case 1:
+        return AUDIO_CHANNEL_IN_MONO;
+    case 2:
+        return AUDIO_CHANNEL_IN_STEREO;
+    default:
+        return 0;
+    }
+}
+
+static inline bool audio_is_valid_format(audio_format_t format)
 {
     switch (format & AUDIO_FORMAT_MAIN_MASK) {
     case AUDIO_FORMAT_PCM:
@@ -403,28 +487,28 @@
     }
 }
 
-static inline bool audio_is_linear_pcm(uint32_t format)
+static inline bool audio_is_linear_pcm(audio_format_t format)
 {
     return ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM);
 }
 
-static inline size_t audio_bytes_per_sample(uint32_t format)
+static inline size_t audio_bytes_per_sample(audio_format_t format)
 {
     size_t size = 0;
 
     switch (format) {
-        case AUDIO_FORMAT_PCM_32_BIT:
-        case AUDIO_FORMAT_PCM_8_24_BIT:
-            size = sizeof(int32_t);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            size = sizeof(int16_t);
-            break;
-        case AUDIO_FORMAT_PCM_8_BIT:
-            size = sizeof(uint8_t);
-            break;
-        default:
-            break;
+    case AUDIO_FORMAT_PCM_32_BIT:
+    case AUDIO_FORMAT_PCM_8_24_BIT:
+        size = sizeof(int32_t);
+        break;
+    case AUDIO_FORMAT_PCM_16_BIT:
+        size = sizeof(int16_t);
+        break;
+    case AUDIO_FORMAT_PCM_8_BIT:
+        size = sizeof(uint8_t);
+        break;
+    default:
+        break;
     }
     return size;
 }
diff --git a/include/system/audio_policy.h b/include/system/audio_policy.h
index 0194962..91b8e9c 100644
--- a/include/system/audio_policy.h
+++ b/include/system/audio_policy.h
@@ -30,17 +30,6 @@
  * frameworks/base/include/media/AudioSystem.h
  */
 
-/* request to open a direct output with get_output() (by opposition to
- * sharing an output with other AudioTracks)
- */
-typedef enum {
-    AUDIO_POLICY_OUTPUT_FLAG_INDIRECT = 0x0,
-    AUDIO_POLICY_OUTPUT_FLAG_DIRECT = 0x1
-} audio_policy_output_flags_t;
-
-/* for future compatibility */
-typedef audio_policy_output_flags_t audio_output_flags_t;
-
 /* device categories used for audio_policy->set_force_use() */
 typedef enum {
     AUDIO_POLICY_FORCE_NONE,
@@ -53,6 +42,7 @@
     AUDIO_POLICY_FORCE_BT_DESK_DOCK,
     AUDIO_POLICY_FORCE_ANALOG_DOCK,
     AUDIO_POLICY_FORCE_DIGITAL_DOCK,
+    AUDIO_POLICY_FORCE_NO_BT_A2DP, /* A2DP sink is not preferred to speaker or wired HS */
 
     AUDIO_POLICY_FORCE_CFG_CNT,
     AUDIO_POLICY_FORCE_CFG_MAX = AUDIO_POLICY_FORCE_CFG_CNT - 1,
diff --git a/include/system/camera.h b/include/system/camera.h
index cdfa256..e4cacc5 100644
--- a/include/system/camera.h
+++ b/include/system/camera.h
@@ -85,6 +85,9 @@
     // request FRAME and METADATA. Or the apps can request only FRAME or only
     // METADATA.
     CAMERA_MSG_PREVIEW_METADATA = 0x0400, // dataCallback
+    // Notify on autofocus start and stop. This is useful in continuous
+    // autofocus - FOCUS_MODE_CONTINUOUS_VIDEO and FOCUS_MODE_CONTINUOUS_PICTURE.
+    CAMERA_MSG_FOCUS_MOVE = 0x0800,       // notifyCallback
     CAMERA_MSG_ALL_MSGS = 0xFFFF
 };
 
@@ -134,7 +137,8 @@
      * KEY_FOCUS_AREAS and KEY_METERING_AREAS have no effect.
      *
      * arg1 is the face detection type. It can be CAMERA_FACE_DETECTION_HW or
-     * CAMERA_FACE_DETECTION_SW.
+     * CAMERA_FACE_DETECTION_SW. If the type of face detection requested is not
+     * supported, the HAL must return BAD_VALUE.
      */
     CAMERA_CMD_START_FACE_DETECTION = 6,
 
@@ -142,11 +146,36 @@
      * Stop the face detection.
      */
     CAMERA_CMD_STOP_FACE_DETECTION = 7,
+
+    /**
+     * Enable/disable focus move callback (CAMERA_MSG_FOCUS_MOVE). Passing
+     * arg1 = 0 will disable, while passing arg1 = 1 will enable the callback.
+     */
+    CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG = 8,
+
+    /**
+     * Ping camera service to see if camera hardware is released.
+     *
+     * When any camera method returns error, the client can use ping command
+     * to see if the camera has been taken away by other clients. If the result
+     * is NO_ERROR, it means the camera hardware is not released. If the result
+     * is not NO_ERROR, the camera has been released and the existing client
+     * can silently finish itself or show a dialog.
+     */
+    CAMERA_CMD_PING = 9,
 };
 
 /** camera fatal errors */
 enum {
     CAMERA_ERROR_UNKNOWN = 1,
+    /**
+     * Camera was released because another client has connected to the camera.
+     * The original client should call Camera::disconnect immediately after
+     * getting this notification. Otherwise, the camera will be released by
+     * camera service in a short time. The client should not call any method
+     * (except disconnect and sending CAMERA_CMD_PING) after getting this.
+     */
+    CAMERA_ERROR_RELEASED = 2,
     CAMERA_ERROR_SERVER_DIED = 100
 };
 
diff --git a/include/system/graphics.h b/include/system/graphics.h
index d42a0d3..24e2bfb 100644
--- a/include/system/graphics.h
+++ b/include/system/graphics.h
@@ -78,7 +78,8 @@
      * - a vertical stride equal to the height
      *
      *   y_size = stride * height
-     *   c_size = ALIGN(stride/2, 16) * height/2
+     *   c_stride = ALIGN(stride/2, 16)
+     *   c_size = c_stride * height/2
      *   size = y_size + c_size * 2
      *   cr_offset = y_size
      *   cb_offset = y_size + c_size
@@ -86,7 +87,26 @@
      */
     HAL_PIXEL_FORMAT_YV12   = 0x32315659, // YCrCb 4:2:0 Planar
 
-    /* Forward compatibility */
+    /*
+     * Android RAW sensor format:
+     *
+     * This format is exposed outside of the HAL to applications.
+     *
+     * RAW_SENSOR is a single-channel 16-bit format, typically representing raw
+     * Bayer-pattern images from an image sensor, with minimal processing.
+     *
+     * The exact pixel layout of the data in the buffer is sensor-dependent, and
+     * needs to be queried from the camera device.
+     *
+     * Generally, not all 16 bits are used; more common values are 10 or 12
+     * bits. All parameters to interpret the raw data (black and white points,
+     * color space, etc) must be queried from the camera device.
+     *
+     * This format assumes
+     * - an even width
+     * - an even height
+     * - a horizontal stride multiple of 16 pixels (32 bytes).
+     */
     HAL_PIXEL_FORMAT_RAW_SENSOR = 0x20,
 
     /* Legacy formats (deprecated), used by ImageFormat.java */
diff --git a/include/system/window.h b/include/system/window.h
index 9602445..8e00bcd 100644
--- a/include/system/window.h
+++ b/include/system/window.h
@@ -157,9 +157,10 @@
 
 
     /*
-     * Default width and height of the ANativeWindow, these are the dimensions
-     * of the window irrespective of the NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS
-     * call.
+     * Default width and height of ANativeWindow buffers, these are the
+     * dimensions of the window buffers irrespective of the
+     * NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS call and match the native window
+     * size unless overridden by NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS.
      */
     NATIVE_WINDOW_DEFAULT_WIDTH = 6,
     NATIVE_WINDOW_DEFAULT_HEIGHT = 7,
@@ -212,25 +213,42 @@
      *
      */
     NATIVE_WINDOW_TRANSFORM_HINT = 8,
+
+    /*
+     * Boolean that indicates whether the consumer is running more than
+     * one buffer behind the producer.
+     */
+    NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND = 9
 };
 
-/* valid operations for the (*perform)() hook */
+/* Valid operations for the (*perform)() hook.
+ *
+ * Values marked as 'deprecated' are supported, but have been superceded by
+ * other functionality.
+ *
+ * Values marked as 'private' should be considered private to the framework.
+ * HAL implementation code with access to an ANativeWindow should not use these,
+ * as it may not interact properly with the framework's use of the
+ * ANativeWindow.
+ */
 enum {
     NATIVE_WINDOW_SET_USAGE                 =  0,
     NATIVE_WINDOW_CONNECT                   =  1,   /* deprecated */
     NATIVE_WINDOW_DISCONNECT                =  2,   /* deprecated */
-    NATIVE_WINDOW_SET_CROP                  =  3,
+    NATIVE_WINDOW_SET_CROP                  =  3,   /* private */
     NATIVE_WINDOW_SET_BUFFER_COUNT          =  4,
     NATIVE_WINDOW_SET_BUFFERS_GEOMETRY      =  5,   /* deprecated */
     NATIVE_WINDOW_SET_BUFFERS_TRANSFORM     =  6,
     NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP     =  7,
     NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS    =  8,
     NATIVE_WINDOW_SET_BUFFERS_FORMAT        =  9,
-    NATIVE_WINDOW_SET_SCALING_MODE          = 10,
+    NATIVE_WINDOW_SET_SCALING_MODE          = 10,   /* private */
     NATIVE_WINDOW_LOCK                      = 11,   /* private */
     NATIVE_WINDOW_UNLOCK_AND_POST           = 12,   /* private */
     NATIVE_WINDOW_API_CONNECT               = 13,   /* private */
     NATIVE_WINDOW_API_DISCONNECT            = 14,   /* private */
+    NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS = 15, /* private */
+    NATIVE_WINDOW_SET_POST_TRANSFORM_CROP   = 16,   /* private */
 };
 
 /* parameter for NATIVE_WINDOW_[API_][DIS]CONNECT */
@@ -276,6 +294,15 @@
     NATIVE_WINDOW_SCALING_MODE_FREEZE           = 0,
     /* the buffer is scaled in both dimensions to match the window size */
     NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW  = 1,
+    /* the buffer is scaled uniformly such that the smaller dimension
+     * of the buffer matches the window size (cropping in the process)
+     */
+    NATIVE_WINDOW_SCALING_MODE_SCALE_CROP       = 2,
+    /* the window is clipped to the size of the buffer's crop rectangle; pixels
+     * outside the crop rectangle are treated as if they are completely
+     * transparent.
+     */
+    NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP    = 3,
 };
 
 /* values returned by the NATIVE_WINDOW_CONCRETE_TYPE query */
@@ -405,18 +432,20 @@
      *     NATIVE_WINDOW_SET_USAGE
      *     NATIVE_WINDOW_CONNECT               (deprecated)
      *     NATIVE_WINDOW_DISCONNECT            (deprecated)
-     *     NATIVE_WINDOW_SET_CROP
+     *     NATIVE_WINDOW_SET_CROP              (private)
      *     NATIVE_WINDOW_SET_BUFFER_COUNT
      *     NATIVE_WINDOW_SET_BUFFERS_GEOMETRY  (deprecated)
      *     NATIVE_WINDOW_SET_BUFFERS_TRANSFORM
      *     NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP
      *     NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS
      *     NATIVE_WINDOW_SET_BUFFERS_FORMAT
-     *     NATIVE_WINDOW_SET_SCALING_MODE
+     *     NATIVE_WINDOW_SET_SCALING_MODE       (private)
      *     NATIVE_WINDOW_LOCK                   (private)
      *     NATIVE_WINDOW_UNLOCK_AND_POST        (private)
      *     NATIVE_WINDOW_API_CONNECT            (private)
      *     NATIVE_WINDOW_API_DISCONNECT         (private)
+     *     NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS (private)
+     *     NATIVE_WINDOW_SET_POST_TRANSFORM_CROP (private)
      *
      */
 
@@ -480,14 +509,16 @@
 /*
  * native_window_set_crop(..., crop)
  * Sets which region of the next queued buffers needs to be considered.
- * A buffer's crop region is scaled to match the surface's size.
+ * Depending on the scaling mode, a buffer's crop region is scaled and/or
+ * cropped to match the surface's size.  This function sets the crop in
+ * pre-transformed buffer pixel coordinates.
  *
  * The specified crop region applies to all buffers queued after it is called.
  *
- * if 'crop' is NULL, subsequently queued buffers won't be cropped.
+ * If 'crop' is NULL, subsequently queued buffers won't be cropped.
  *
- * An error is returned if for instance the crop region is invalid,
- * out of the buffer's bound or if the window is invalid.
+ * An error is returned if for instance the crop region is invalid, out of the
+ * buffer's bound or if the window is invalid.
  */
 static inline int native_window_set_crop(
         struct ANativeWindow* window,
@@ -497,6 +528,41 @@
 }
 
 /*
+ * native_window_set_post_transform_crop(..., crop)
+ * Sets which region of the next queued buffers needs to be considered.
+ * Depending on the scaling mode, a buffer's crop region is scaled and/or
+ * cropped to match the surface's size.  This function sets the crop in
+ * post-transformed pixel coordinates.
+ *
+ * The specified crop region applies to all buffers queued after it is called.
+ *
+ * If 'crop' is NULL, subsequently queued buffers won't be cropped.
+ *
+ * An error is returned if for instance the crop region is invalid, out of the
+ * buffer's bound or if the window is invalid.
+ */
+static inline int native_window_set_post_transform_crop(
+        struct ANativeWindow* window,
+        android_native_rect_t const * crop)
+{
+    return window->perform(window, NATIVE_WINDOW_SET_POST_TRANSFORM_CROP, crop);
+}
+
+/*
+ * native_window_set_active_rect(..., active_rect)
+ *
+ * This function is deprectated and will be removed soon.  For now it simply
+ * sets the post-transform crop for compatibility while multi-project commits
+ * get checked.
+ */
+static inline int native_window_set_active_rect(
+        struct ANativeWindow* window,
+        android_native_rect_t const * active_rect)
+{
+    return native_window_set_post_transform_crop(window, active_rect);
+}
+
+/*
  * native_window_set_buffer_count(..., count)
  * Sets the number of buffers associated with this native window.
  */
@@ -527,7 +593,7 @@
 /*
  * native_window_set_buffers_dimensions(..., int w, int h)
  * All buffers dequeued after this call will have the dimensions specified.
- * In particular, all buffers will have a fixed-size, independent form the
+ * In particular, all buffers will have a fixed-size, independent from the
  * native-window size. They will be scaled according to the scaling mode
  * (see native_window_set_scaling_mode) upon window composition.
  *
@@ -546,6 +612,31 @@
 }
 
 /*
+ * native_window_set_buffers_user_dimensions(..., int w, int h)
+ *
+ * Sets the user buffer size for the window, which overrides the
+ * window's size.  All buffers dequeued after this call will have the
+ * dimensions specified unless overridden by
+ * native_window_set_buffers_dimensions.  All buffers will have a
+ * fixed-size, independent from the native-window size. They will be
+ * scaled according to the scaling mode (see
+ * native_window_set_scaling_mode) upon window composition.
+ *
+ * If w and h are 0, the normal behavior is restored. That is, the
+ * default buffer size will match the windows's size.
+ *
+ * Calling this function will reset the window crop to a NULL value, which
+ * disables cropping of the buffers.
+ */
+static inline int native_window_set_buffers_user_dimensions(
+        struct ANativeWindow* window,
+        int w, int h)
+{
+    return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS,
+            w, h);
+}
+
+/*
  * native_window_set_buffers_format(..., int format)
  * All buffers dequeued after this call will have the format specified.
  *
@@ -602,7 +693,6 @@
             mode);
 }
 
-
 /*
  * native_window_api_connect(..., int api)
  * connects an API to this window. only one API can be connected at a time.
diff --git a/include/sysutils/FrameworkClient.h b/include/sysutils/FrameworkClient.h
index 0ef0753..4a3f0de 100644
--- a/include/sysutils/FrameworkClient.h
+++ b/include/sysutils/FrameworkClient.h
@@ -1,7 +1,7 @@
 #ifndef _FRAMEWORK_CLIENT_H
 #define _FRAMEWORK_CLIENT_H
 
-#include "../../../frameworks/base/include/utils/List.h"
+#include "List.h"
 
 #include <pthread.h>
 
@@ -17,5 +17,5 @@
     int sendMsg(const char *msg, const char *data);
 };
 
-typedef android::List<FrameworkClient *> FrameworkClientCollection;
+typedef android::sysutils::List<FrameworkClient *> FrameworkClientCollection;
 #endif
diff --git a/include/sysutils/FrameworkCommand.h b/include/sysutils/FrameworkCommand.h
index 6c1fca6..3e6264b 100644
--- a/include/sysutils/FrameworkCommand.h
+++ b/include/sysutils/FrameworkCommand.h
@@ -16,7 +16,7 @@
 #ifndef __FRAMEWORK_CMD_HANDLER_H
 #define __FRAMEWORK_CMD_HANDLER_H
 
-#include "../../../frameworks/base/include/utils/List.h"
+#include "List.h"
 
 class SocketClient;
 
@@ -34,5 +34,5 @@
     const char *getCommand() { return mCommand; }
 };
 
-typedef android::List<FrameworkCommand *> FrameworkCommandCollection;
+typedef android::sysutils::List<FrameworkCommand *> FrameworkCommandCollection;
 #endif
diff --git a/include/sysutils/FrameworkListener.h b/include/sysutils/FrameworkListener.h
index 142f50c..756bacf 100644
--- a/include/sysutils/FrameworkListener.h
+++ b/include/sysutils/FrameworkListener.h
@@ -24,11 +24,17 @@
 class FrameworkListener : public SocketListener {
 public:
     static const int CMD_ARGS_MAX = 16;
+
+    /* 1 out of errorRate will be dropped */
+    int errorRate;
 private:
+    int mCommandCount;
+    bool mWithSeq;
     FrameworkCommandCollection *mCommands;
 
 public:
     FrameworkListener(const char *socketName);
+    FrameworkListener(const char *socketName, bool withSeq);
     virtual ~FrameworkListener() {}
 
 protected:
@@ -37,5 +43,6 @@
 
 private:
     void dispatchCommand(SocketClient *c, char *data);
+    void init(const char *socketName, bool withSeq);
 };
 #endif
diff --git a/include/sysutils/List.h b/include/sysutils/List.h
new file mode 100644
index 0000000..31f7b37
--- /dev/null
+++ b/include/sysutils/List.h
@@ -0,0 +1,334 @@
+/*
+ * Copyright (C) 2005 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//
+// Templated list class.  Normally we'd use STL, but we don't have that.
+// This class mimics STL's interfaces.
+//
+// Objects are copied into the list with the '=' operator or with copy-
+// construction, so if the compiler's auto-generated versions won't work for
+// you, define your own.
+//
+// The only class you want to use from here is "List".
+//
+#ifndef _SYSUTILS_LIST_H
+#define _SYSUTILS_LIST_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace android {
+namespace sysutils {
+
+/*
+ * Doubly-linked list.  Instantiate with "List<MyClass> myList".
+ *
+ * Objects added to the list are copied using the assignment operator,
+ * so this must be defined.
+ */
+template<typename T> 
+class List 
+{
+protected:
+    /*
+     * One element in the list.
+     */
+    class _Node {
+    public:
+        explicit _Node(const T& val) : mVal(val) {}
+        ~_Node() {}
+        inline T& getRef() { return mVal; }
+        inline const T& getRef() const { return mVal; }
+        inline _Node* getPrev() const { return mpPrev; }
+        inline _Node* getNext() const { return mpNext; }
+        inline void setVal(const T& val) { mVal = val; }
+        inline void setPrev(_Node* ptr) { mpPrev = ptr; }
+        inline void setNext(_Node* ptr) { mpNext = ptr; }
+    private:
+        friend class List;
+        friend class _ListIterator;
+        T           mVal;
+        _Node*      mpPrev;
+        _Node*      mpNext;
+    };
+
+    /*
+     * Iterator for walking through the list.
+     */
+    
+    template <typename TYPE>
+    struct CONST_ITERATOR {
+        typedef _Node const * NodePtr;
+        typedef const TYPE Type;
+    };
+    
+    template <typename TYPE>
+    struct NON_CONST_ITERATOR {
+        typedef _Node* NodePtr;
+        typedef TYPE Type;
+    };
+    
+    template<
+        typename U,
+        template <class> class Constness
+    > 
+    class _ListIterator {
+        typedef _ListIterator<U, Constness>     _Iter;
+        typedef typename Constness<U>::NodePtr  _NodePtr;
+        typedef typename Constness<U>::Type     _Type;
+
+        explicit _ListIterator(_NodePtr ptr) : mpNode(ptr) {}
+
+    public:
+        _ListIterator() {}
+        _ListIterator(const _Iter& rhs) : mpNode(rhs.mpNode) {}
+        ~_ListIterator() {}
+        
+        // this will handle conversions from iterator to const_iterator
+        // (and also all convertible iterators)
+        // Here, in this implementation, the iterators can be converted
+        // if the nodes can be converted
+        template<typename V> explicit 
+        _ListIterator(const V& rhs) : mpNode(rhs.mpNode) {}
+        
+
+        /*
+         * Dereference operator.  Used to get at the juicy insides.
+         */
+        _Type& operator*() const { return mpNode->getRef(); }
+        _Type* operator->() const { return &(mpNode->getRef()); }
+
+        /*
+         * Iterator comparison.
+         */
+        inline bool operator==(const _Iter& right) const { 
+            return mpNode == right.mpNode; }
+        
+        inline bool operator!=(const _Iter& right) const { 
+            return mpNode != right.mpNode; }
+
+        /*
+         * handle comparisons between iterator and const_iterator
+         */
+        template<typename OTHER>
+        inline bool operator==(const OTHER& right) const { 
+            return mpNode == right.mpNode; }
+        
+        template<typename OTHER>
+        inline bool operator!=(const OTHER& right) const { 
+            return mpNode != right.mpNode; }
+
+        /*
+         * Incr/decr, used to move through the list.
+         */
+        inline _Iter& operator++() {     // pre-increment
+            mpNode = mpNode->getNext();
+            return *this;
+        }
+        const _Iter operator++(int) {    // post-increment
+            _Iter tmp(*this);
+            mpNode = mpNode->getNext();
+            return tmp;
+        }
+        inline _Iter& operator--() {     // pre-increment
+            mpNode = mpNode->getPrev();
+            return *this;
+        }
+        const _Iter operator--(int) {   // post-increment
+            _Iter tmp(*this);
+            mpNode = mpNode->getPrev();
+            return tmp;
+        }
+
+        inline _NodePtr getNode() const { return mpNode; }
+
+        _NodePtr mpNode;    /* should be private, but older gcc fails */
+    private:
+        friend class List;
+    };
+
+public:
+    List() {
+        prep();
+    }
+    List(const List<T>& src) {      // copy-constructor
+        prep();
+        insert(begin(), src.begin(), src.end());
+    }
+    virtual ~List() {
+        clear();
+        delete[] (unsigned char*) mpMiddle;
+    }
+
+    typedef _ListIterator<T, NON_CONST_ITERATOR> iterator;
+    typedef _ListIterator<T, CONST_ITERATOR> const_iterator;
+
+    List<T>& operator=(const List<T>& right);
+
+    /* returns true if the list is empty */
+    inline bool empty() const { return mpMiddle->getNext() == mpMiddle; }
+
+    /* return #of elements in list */
+    size_t size() const {
+        return size_t(distance(begin(), end()));
+    }
+
+    /*
+     * Return the first element or one past the last element.  The
+     * _Node* we're returning is converted to an "iterator" by a
+     * constructor in _ListIterator.
+     */
+    inline iterator begin() { 
+        return iterator(mpMiddle->getNext()); 
+    }
+    inline const_iterator begin() const { 
+        return const_iterator(const_cast<_Node const*>(mpMiddle->getNext())); 
+    }
+    inline iterator end() { 
+        return iterator(mpMiddle); 
+    }
+    inline const_iterator end() const { 
+        return const_iterator(const_cast<_Node const*>(mpMiddle)); 
+    }
+
+    /* add the object to the head or tail of the list */
+    void push_front(const T& val) { insert(begin(), val); }
+    void push_back(const T& val) { insert(end(), val); }
+
+    /* insert before the current node; returns iterator at new node */
+    iterator insert(iterator posn, const T& val) 
+    {
+        _Node* newNode = new _Node(val);        // alloc & copy-construct
+        newNode->setNext(posn.getNode());
+        newNode->setPrev(posn.getNode()->getPrev());
+        posn.getNode()->getPrev()->setNext(newNode);
+        posn.getNode()->setPrev(newNode);
+        return iterator(newNode);
+    }
+
+    /* insert a range of elements before the current node */
+    void insert(iterator posn, const_iterator first, const_iterator last) {
+        for ( ; first != last; ++first)
+            insert(posn, *first);
+    }
+
+    /* remove one entry; returns iterator at next node */
+    iterator erase(iterator posn) {
+        _Node* pNext = posn.getNode()->getNext();
+        _Node* pPrev = posn.getNode()->getPrev();
+        pPrev->setNext(pNext);
+        pNext->setPrev(pPrev);
+        delete posn.getNode();
+        return iterator(pNext);
+    }
+
+    /* remove a range of elements */
+    iterator erase(iterator first, iterator last) {
+        while (first != last)
+            erase(first++);     // don't erase than incr later!
+        return iterator(last);
+    }
+
+    /* remove all contents of the list */
+    void clear() {
+        _Node* pCurrent = mpMiddle->getNext();
+        _Node* pNext;
+
+        while (pCurrent != mpMiddle) {
+            pNext = pCurrent->getNext();
+            delete pCurrent;
+            pCurrent = pNext;
+        }
+        mpMiddle->setPrev(mpMiddle);
+        mpMiddle->setNext(mpMiddle);
+    }
+
+    /*
+     * Measure the distance between two iterators.  On exist, "first"
+     * will be equal to "last".  The iterators must refer to the same
+     * list.
+     *
+     * FIXME: This is actually a generic iterator function. It should be a 
+     * template function at the top-level with specializations for things like
+     * vector<>, which can just do pointer math). Here we limit it to
+     * _ListIterator of the same type but different constness.
+     */
+    template<
+        typename U,
+        template <class> class CL,
+        template <class> class CR
+    > 
+    ptrdiff_t distance(
+            _ListIterator<U, CL> first, _ListIterator<U, CR> last) const 
+    {
+        ptrdiff_t count = 0;
+        while (first != last) {
+            ++first;
+            ++count;
+        }
+        return count;
+    }
+
+private:
+    /*
+     * I want a _Node but don't need it to hold valid data.  More
+     * to the point, I don't want T's constructor to fire, since it
+     * might have side-effects or require arguments.  So, we do this
+     * slightly uncouth storage alloc.
+     */
+    void prep() {
+        mpMiddle = (_Node*) new unsigned char[sizeof(_Node)];
+        mpMiddle->setPrev(mpMiddle);
+        mpMiddle->setNext(mpMiddle);
+    }
+
+    /*
+     * This node plays the role of "pointer to head" and "pointer to tail".
+     * It sits in the middle of a circular list of nodes.  The iterator
+     * runs around the circle until it encounters this one.
+     */
+    _Node*      mpMiddle;
+};
+
+/*
+ * Assignment operator.
+ *
+ * The simplest way to do this would be to clear out the target list and
+ * fill it with the source.  However, we can speed things along by
+ * re-using existing elements.
+ */
+template<class T>
+List<T>& List<T>::operator=(const List<T>& right)
+{
+    if (this == &right)
+        return *this;       // self-assignment
+    iterator firstDst = begin();
+    iterator lastDst = end();
+    const_iterator firstSrc = right.begin();
+    const_iterator lastSrc = right.end();
+    while (firstSrc != lastSrc && firstDst != lastDst)
+        *firstDst++ = *firstSrc++;
+    if (firstSrc == lastSrc)        // ran out of elements in source?
+        erase(firstDst, lastDst);   // yes, erase any extras
+    else
+        insert(lastDst, firstSrc, lastSrc);     // copy remaining over
+    return *this;
+}
+
+}; // namespace sysutils
+}; // namespace android
+
+#endif // _SYSUTILS_LIST_H
diff --git a/include/sysutils/SocketClient.h b/include/sysutils/SocketClient.h
index 7d2b1d6..85b58ef 100644
--- a/include/sysutils/SocketClient.h
+++ b/include/sysutils/SocketClient.h
@@ -1,9 +1,10 @@
 #ifndef _SOCKET_CLIENT_H
 #define _SOCKET_CLIENT_H
 
-#include "../../../frameworks/base/include/utils/List.h"
+#include "List.h"
 
 #include <pthread.h>
+#include <cutils/atomic.h>
 #include <sys/types.h>
 
 class SocketClient {
@@ -24,18 +25,34 @@
     pthread_mutex_t mRefCountMutex;
     int mRefCount;
 
+    int mCmdNum;
+
+    bool mUseCmdNum;
+
 public:
     SocketClient(int sock, bool owned);
+    SocketClient(int sock, bool owned, bool useCmdNum);
     virtual ~SocketClient();
 
     int getSocket() { return mSocket; }
     pid_t getPid() const { return mPid; }
     uid_t getUid() const { return mUid; }
     gid_t getGid() const { return mGid; }
+    void setCmdNum(int cmdNum) { android_atomic_release_store(cmdNum, &mCmdNum); }
+    int getCmdNum() { return mCmdNum; }
 
     // Send null-terminated C strings:
     int sendMsg(int code, const char *msg, bool addErrno);
-    int sendMsg(const char *msg);
+    int sendMsg(int code, const char *msg, bool addErrno, bool useCmdNum);
+
+    // Provides a mechanism to send a response code to the client.
+    // Sends the code and a null character.
+    int sendCode(int code);
+
+    // Provides a mechanism to send binary data to client.
+    // Sends the code and a null character, followed by 4 bytes of
+    // big-endian length, and the data.
+    int sendBinaryMsg(int code, const void *data, int len);
 
     // Sending binary data:
     int sendData(const void *data, int len);
@@ -46,7 +63,21 @@
     // decRef() when it's done with the client.
     void incRef();
     bool decRef(); // returns true at 0 (but note: SocketClient already deleted)
+
+    // return a new string in quotes with '\\' and '\"' escaped for "my arg" transmissions
+    static char *quoteArg(const char *arg);
+
+private:
+    // Send null-terminated C strings
+    int sendMsg(const char *msg);
+    void init(int socket, bool owned, bool useCmdNum);
+
+    // Sending binary data. The caller should use make sure this is protected
+    // from multiple threads entering simultaneously.
+    // returns 0 if successful, -1 if there is a 0 byte write and -2 if any other
+    // error occurred (use errno to get the error)
+    int sendDataLocked(const void *data, int len);
 };
 
-typedef android::List<SocketClient *> SocketClientCollection;
+typedef android::sysutils::List<SocketClient *> SocketClientCollection;
 #endif
diff --git a/include/sysutils/SocketListener.h b/include/sysutils/SocketListener.h
index 6592b01..8f56230 100644
--- a/include/sysutils/SocketListener.h
+++ b/include/sysutils/SocketListener.h
@@ -21,16 +21,18 @@
 #include <sysutils/SocketClient.h>
 
 class SocketListener {
-    int                     mSock;
+    bool                    mListen;
     const char              *mSocketName;
+    int                     mSock;
     SocketClientCollection  *mClients;
     pthread_mutex_t         mClientsLock;
-    bool                    mListen;
     int                     mCtrlPipe[2];
     pthread_t               mThread;
+    bool                    mUseCmdNum;
 
 public:
     SocketListener(const char *socketName, bool listen);
+    SocketListener(const char *socketName, bool listen, bool useCmdNum);
     SocketListener(int socketFd, bool listen);
 
     virtual ~SocketListener();
@@ -38,7 +40,6 @@
     int stopListener();
 
     void sendBroadcast(int code, const char *msg, bool addErrno);
-    void sendBroadcast(const char *msg);
 
 protected:
     virtual bool onDataAvailable(SocketClient *c) = 0;
@@ -46,5 +47,6 @@
 private:
     static void *threadStart(void *obj);
     void runListener();
+    void init(const char *socketName, int socketFd, bool listen, bool useCmdNum);
 };
 #endif
diff --git a/init/Android.mk b/init/Android.mk
index e9fd884..7dae9df 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -22,17 +22,21 @@
 LOCAL_CFLAGS    += -DBOOTCHART=1
 endif
 
+ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
+LOCAL_CFLAGS += -DALLOW_LOCAL_PROP_OVERRIDE=1
+endif
+
 LOCAL_MODULE:= init
 
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
 LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
 
-LOCAL_STATIC_LIBRARIES := libcutils libc
+LOCAL_STATIC_LIBRARIES := libfs_mgr libcutils libc
 
 ifeq ($(HAVE_SELINUX),true)
 LOCAL_STATIC_LIBRARIES += libselinux
-LOCAL_C_INCLUDES := external/libselinux/include
+LOCAL_C_INCLUDES += external/libselinux/include
 LOCAL_CFLAGS += -DHAVE_SELINUX
 endif
 
diff --git a/init/builtins.c b/init/builtins.c
index 661c9b1..5bda7a0 100644
--- a/init/builtins.c
+++ b/init/builtins.c
@@ -29,9 +29,11 @@
 #include <stdlib.h>
 #include <sys/mount.h>
 #include <sys/resource.h>
+#include <sys/wait.h>
 #include <linux/loop.h>
 #include <cutils/partition_utils.h>
 #include <sys/system_properties.h>
+#include <fs_mgr.h>
 
 #ifdef HAVE_SELINUX
 #include <selinux/selinux.h>
@@ -300,7 +302,7 @@
         mode = strtoul(args[2], 0, 8);
     }
 
-    ret = mkdir(args[1], mode);
+    ret = make_dir(args[1], mode);
     /* chmod in case the directory already exists */
     if (ret == -1 && errno == EEXIST) {
         ret = _chmod(args[1], mode);
@@ -433,72 +435,71 @@
         if (wait)
             wait_for_file(source, COMMAND_RETRY_TIMEOUT);
         if (mount(source, target, system, flags, options) < 0) {
-            /* If this fails, it may be an encrypted filesystem
-             * or it could just be wiped.  If wiped, that will be
-             * handled later in the boot process.
-             * We only support encrypting /data.  Check
-             * if we're trying to mount it, and if so,
-             * assume it's encrypted, mount a tmpfs instead.
-             * Then save the orig mount parms in properties
-             * for vold to query when it mounts the real
-             * encrypted /data.
-             */
-            if (!strcmp(target, DATA_MNT_POINT) && !partition_wiped(source)) {
-                const char *tmpfs_options;
-
-                tmpfs_options = property_get("ro.crypto.tmpfs_options");
-
-                if (mount("tmpfs", target, "tmpfs", MS_NOATIME | MS_NOSUID | MS_NODEV,
-                    tmpfs_options) < 0) {
-                    return -1;
-                }
-
-                /* Set the property that triggers the framework to do a minimal
-                 * startup and ask the user for a password
-                 */
-                property_set("ro.crypto.state", "encrypted");
-                property_set("vold.decrypt", "1");
-            } else {
-                return -1;
-            }
+            return -1;
         }
 
-        if (!strcmp(target, DATA_MNT_POINT)) {
-            char fs_flags[32];
-
-            /* Save the original mount options */
-            property_set("ro.crypto.fs_type", system);
-            property_set("ro.crypto.fs_real_blkdev", source);
-            property_set("ro.crypto.fs_mnt_point", target);
-            if (options) {
-                property_set("ro.crypto.fs_options", options);
-            }
-            snprintf(fs_flags, sizeof(fs_flags), "0x%8.8x", flags);
-            property_set("ro.crypto.fs_flags", fs_flags);
-        }
     }
 
 exit_success:
-    /* If not running encrypted, then set the property saying we are
-     * unencrypted, and also trigger the action for a nonencrypted system.
-     */
-    if (!strcmp(target, DATA_MNT_POINT)) {
-        const char *prop;
-
-        prop = property_get("ro.crypto.state");
-        if (! prop) {
-            prop = "notset";
-        }
-        if (strcmp(prop, "encrypted")) {
-            property_set("ro.crypto.state", "unencrypted");
-            action_for_each_trigger("nonencrypted", action_add_queue_tail);
-        }
-    }
-
     return 0;
 
 }
 
+int do_mount_all(int nargs, char **args)
+{
+    pid_t pid;
+    int ret = -1;
+    int child_ret = -1;
+    int status;
+    const char *prop;
+
+    if (nargs != 2) {
+        return -1;
+    }
+
+    /*
+     * Call fs_mgr_mount_all() to mount all filesystems.  We fork(2) and
+     * do the call in the child to provide protection to the main init
+     * process if anything goes wrong (crash or memory leak), and wait for
+     * the child to finish in the parent.
+     */
+    pid = fork();
+    if (pid > 0) {
+        /* Parent.  Wait for the child to return */
+        waitpid(pid, &status, 0);
+        if (WIFEXITED(status)) {
+            ret = WEXITSTATUS(status);
+        } else {
+            ret = -1;
+        }
+    } else if (pid == 0) {
+        /* child, call fs_mgr_mount_all() */
+        klog_set_level(6);  /* So we can see what fs_mgr_mount_all() does */
+        child_ret = fs_mgr_mount_all(args[1]);
+        if (child_ret == -1) {
+            ERROR("fs_mgr_mount_all returned an error\n");
+        }
+        exit(child_ret);
+    } else {
+        /* fork failed, return an error */
+        return -1;
+    }
+
+    /* ret is 1 if the device is encrypted, 0 if not, and -1 on error */
+    if (ret == 1) {
+        property_set("ro.crypto.state", "encrypted");
+        property_set("vold.decrypt", "1");
+    } else if (ret == 0) {
+        property_set("ro.crypto.state", "unencrypted");
+        /* If fs_mgr determined this is an unencrypted device, then trigger
+         * that action.
+         */
+        action_for_each_trigger("nonencrypted", action_add_queue_tail);
+    }
+
+    return ret;
+}
+
 int do_setcon(int nargs, char **args) {
 #ifdef HAVE_SELINUX
     if (is_selinux_enabled() <= 0)
@@ -735,26 +736,12 @@
 }
 
 int do_restorecon(int nargs, char **args) {
-#ifdef HAVE_SELINUX
-    char *secontext = NULL;
-    struct stat sb;
     int i;
 
-    if (is_selinux_enabled() <= 0 || !sehandle)
-        return 0;
-
     for (i = 1; i < nargs; i++) {
-        if (lstat(args[i], &sb) < 0)
+        if (restorecon(args[i]) < 0)
             return -errno;
-        if (selabel_lookup(sehandle, &secontext, args[i], sb.st_mode) < 0)
-            return -errno;
-        if (lsetfilecon(args[i], secontext) < 0) {
-            freecon(secontext);
-            return -errno;
-        }
-        freecon(secontext);
     }
-#endif
     return 0;
 }
 
diff --git a/init/devices.c b/init/devices.c
index 3b4d369..c367de8 100644
--- a/init/devices.c
+++ b/init/devices.c
@@ -52,7 +52,7 @@
 #define FIRMWARE_DIR2   "/vendor/firmware"
 
 #ifdef HAVE_SELINUX
-static struct selabel_handle *sehandle;
+extern struct selabel_handle *sehandle;
 #endif
 
 static int device_fd = -1;
@@ -63,6 +63,7 @@
     const char *subsystem;
     const char *firmware;
     const char *partition_name;
+    const char *device_name;
     int partition_num;
     int major;
     int minor;
@@ -219,32 +220,6 @@
 #endif
 }
 
-
-static int make_dir(const char *path, mode_t mode)
-{
-    int rc;
-
-#ifdef HAVE_SELINUX
-    char *secontext = NULL;
-
-    if (sehandle) {
-        selabel_lookup(sehandle, &secontext, path, mode);
-        setfscreatecon(secontext);
-    }
-#endif
-
-    rc = mkdir(path, mode);
-
-#ifdef HAVE_SELINUX
-    if (secontext) {
-        freecon(secontext);
-        setfscreatecon(NULL);
-    }
-#endif
-    return rc;
-}
-
-
 static void add_platform_device(const char *name)
 {
     int name_len = strlen(name);
@@ -335,6 +310,7 @@
     uevent->minor = -1;
     uevent->partition_name = NULL;
     uevent->partition_num = -1;
+    uevent->device_name = NULL;
 
         /* currently ignoring SEQNUM */
     while(*msg) {
@@ -362,9 +338,12 @@
         } else if(!strncmp(msg, "PARTNAME=", 9)) {
             msg += 9;
             uevent->partition_name = msg;
+        } else if(!strncmp(msg, "DEVNAME=", 8)) {
+            msg += 8;
+            uevent->device_name = msg;
         }
 
-            /* advance to after the next \0 */
+        /* advance to after the next \0 */
         while(*msg++)
             ;
     }
@@ -579,18 +558,39 @@
 
     if (!strncmp(uevent->subsystem, "usb", 3)) {
          if (!strcmp(uevent->subsystem, "usb")) {
-             /* This imitates the file system that would be created
-              * if we were using devfs instead.
-              * Minors are broken up into groups of 128, starting at "001"
-              */
-             int bus_id = uevent->minor / 128 + 1;
-             int device_id = uevent->minor % 128 + 1;
-             /* build directories */
-             make_dir("/dev/bus", 0755);
-             make_dir("/dev/bus/usb", 0755);
-             snprintf(devpath, sizeof(devpath), "/dev/bus/usb/%03d", bus_id);
-             make_dir(devpath, 0755);
-             snprintf(devpath, sizeof(devpath), "/dev/bus/usb/%03d/%03d", bus_id, device_id);
+            if (uevent->device_name) {
+                /*
+                 * create device node provided by kernel if present
+                 * see drivers/base/core.c
+                 */
+                char *p = devpath;
+                snprintf(devpath, sizeof(devpath), "/dev/%s", uevent->device_name);
+                /* skip leading /dev/ */
+                p += 5;
+                /* build directories */
+                while (*p) {
+                    if (*p == '/') {
+                        *p = 0;
+                        make_dir(devpath, 0755);
+                        *p = '/';
+                    }
+                    p++;
+                }
+             }
+             else {
+                 /* This imitates the file system that would be created
+                  * if we were using devfs instead.
+                  * Minors are broken up into groups of 128, starting at "001"
+                  */
+                 int bus_id = uevent->minor / 128 + 1;
+                 int device_id = uevent->minor % 128 + 1;
+                 /* build directories */
+                 make_dir("/dev/bus", 0755);
+                 make_dir("/dev/bus/usb", 0755);
+                 snprintf(devpath, sizeof(devpath), "/dev/bus/usb/%03d", bus_id);
+                 make_dir(devpath, 0755);
+                 snprintf(devpath, sizeof(devpath), "/dev/bus/usb/%03d/%03d", bus_id, device_id);
+             }
          } else {
              /* ignore other USB events */
              return;
diff --git a/init/init.c b/init/init.c
index 1ee88a7..cc98afc 100755
--- a/init/init.c
+++ b/init/init.c
@@ -134,6 +134,7 @@
     if ((fd = open(console_name, O_RDWR)) < 0) {
         fd = open("/dev/null", O_RDWR);
     }
+    ioctl(fd, TIOCSCTTY, 0);
     dup2(fd, 0);
     dup2(fd, 1);
     dup2(fd, 2);
@@ -239,6 +240,7 @@
         char tmp[32];
         int fd, sz;
 
+        umask(077);
         if (properties_inited()) {
             get_property_workspace(&fd, &sz);
             sprintf(tmp, "%d,%d", dup(fd), sz);
@@ -646,7 +648,6 @@
         { "ro.boot.serialno", "ro.serialno", "", },
         { "ro.boot.mode", "ro.bootmode", "unknown", },
         { "ro.boot.baseband", "ro.baseband", "unknown", },
-        { "ro.boot.carrier", "ro.carrier", "unknown", },
         { "ro.boot.bootloader", "ro.bootloader", "unknown", },
     };
 
@@ -900,6 +901,12 @@
 #ifdef HAVE_SELINUX
     INFO("loading selinux policy\n");
     selinux_load_policy();
+    /* These directories were necessarily created before policy load
+     * and therefore need their security context restored to the proper value.
+     * This must happen before /dev is populated by ueventd.
+     */
+    restorecon("/dev");
+    restorecon("/dev/socket");
 #endif
 
     is_charger = !strcmp(bootmode, "charger");
diff --git a/init/init_parser.c b/init/init_parser.c
index f538450..5393e52 100644
--- a/init/init_parser.c
+++ b/init/init_parser.c
@@ -122,6 +122,7 @@
         break;
     case 'm':
         if (!strcmp(s, "kdir")) return K_mkdir;
+        if (!strcmp(s, "ount_all")) return K_mount_all;
         if (!strcmp(s, "ount")) return K_mount;
         break;
     case 'o':
diff --git a/init/keywords.h b/init/keywords.h
index 307c084..97d4950 100644
--- a/init/keywords.h
+++ b/init/keywords.h
@@ -12,6 +12,7 @@
 int do_ifup(int nargs, char **args);
 int do_insmod(int nargs, char **args);
 int do_mkdir(int nargs, char **args);
+int do_mount_all(int nargs, char **args);
 int do_mount(int nargs, char **args);
 int do_restart(int nargs, char **args);
 int do_restorecon(int nargs, char **args);
@@ -60,6 +61,7 @@
     KEYWORD(import,      SECTION, 1, 0)
     KEYWORD(keycodes,    OPTION,  0, 0)
     KEYWORD(mkdir,       COMMAND, 1, do_mkdir)
+    KEYWORD(mount_all,   COMMAND, 1, do_mount_all)
     KEYWORD(mount,       COMMAND, 3, do_mount)
     KEYWORD(on,          SECTION, 0, 0)
     KEYWORD(oneshot,     OPTION,  0, 0)
diff --git a/init/property_service.c b/init/property_service.c
index 059db97..79914cd 100644
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -78,6 +78,7 @@
     { "wlan.",            AID_SYSTEM,   0 },
     { "dhcp.",            AID_SYSTEM,   0 },
     { "dhcp.",            AID_DHCP,     0 },
+    { "debug.",           AID_SYSTEM,   0 },
     { "debug.",           AID_SHELL,    0 },
     { "log.",             AID_SHELL,    0 },
     { "service.adb.root", AID_SHELL,    0 },
@@ -338,21 +339,6 @@
     return 0;
 }
 
-static int property_list(void (*propfn)(const char *key, const char *value, void *cookie),
-                  void *cookie)
-{
-    char name[PROP_NAME_MAX];
-    char value[PROP_VALUE_MAX];
-    const prop_info *pi;
-    unsigned n;
-
-    for(n = 0; (pi = __system_property_find_nth(n)); n++) {
-        __system_property_read(pi, name, value);
-        propfn(name, value, cookie);
-    }
-    return 0;
-}
-
 void handle_property_set_fd()
 {
     prop_msg msg;
@@ -527,7 +513,9 @@
  */
 void load_persist_props(void)
 {
+#ifdef ALLOW_LOCAL_PROP_OVERRIDE
     load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE);
+#endif /* ALLOW_LOCAL_PROP_OVERRIDE */
     /* Read persistent properties after all default values have been loaded. */
     load_persistent_properties();
 }
@@ -538,7 +526,9 @@
 
     load_properties_from_file(PROP_PATH_SYSTEM_BUILD);
     load_properties_from_file(PROP_PATH_SYSTEM_DEFAULT);
+#ifdef ALLOW_LOCAL_PROP_OVERRIDE
     load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE);
+#endif /* ALLOW_LOCAL_PROP_OVERRIDE */
     /* Read persistent properties after all default values have been loaded. */
     load_persistent_properties();
 
diff --git a/init/ueventd.c b/init/ueventd.c
index ecf3b9b..a89e067 100644
--- a/init/ueventd.c
+++ b/init/ueventd.c
@@ -53,11 +53,18 @@
     int nr;
     char tmp[32];
 
-        /* Prevent fire-and-forget children from becoming zombies.
-         * If we should need to wait() for some children in the future
-         * (as opposed to none right now), double-forking here instead
-         * of ignoring SIGCHLD may be the better solution.
-         */
+    /*
+     * init sets the umask to 077 for forked processes. We need to
+     * create files with exact permissions, without modification by
+     * the umask.
+     */
+    umask(000);
+
+    /* Prevent fire-and-forget children from becoming zombies.
+     * If we should need to wait() for some children in the future
+     * (as opposed to none right now), double-forking here instead
+     * of ignoring SIGCHLD may be the better solution.
+     */
     signal(SIGCHLD, SIG_IGN);
 
     open_devnull_stdio();
diff --git a/init/util.c b/init/util.c
index 3a4b10b..743748b 100755
--- a/init/util.c
+++ b/init/util.c
@@ -47,7 +47,7 @@
  */
 static unsigned int android_name_to_id(const char *name)
 {
-    struct android_id_info *info = android_ids;
+    const struct android_id_info *info = android_ids;
     unsigned int n;
 
     for (n = 0; n < android_id_count; n++) {
@@ -151,11 +151,23 @@
     char *data;
     int sz;
     int fd;
+    struct stat sb;
 
     data = 0;
     fd = open(fn, O_RDONLY);
     if(fd < 0) return 0;
 
+    // for security reasons, disallow world-writable
+    // or group-writable files
+    if (fstat(fd, &sb) < 0) {
+        ERROR("fstat failed for '%s'\n", fn);
+        goto oops;
+    }
+    if ((sb.st_mode & (S_IWGRP | S_IWOTH)) != 0) {
+        ERROR("skipping insecure file '%s'\n", fn);
+        goto oops;
+    }
+
     sz = lseek(fd, 0, SEEK_END);
     if(sz < 0) goto oops;
 
@@ -290,12 +302,12 @@
         memcpy(buf, pathname, width);
         buf[width] = 0;
         if (stat(buf, &info) != 0) {
-            ret = mkdir(buf, mode);
+            ret = make_dir(buf, mode);
             if (ret && errno != EEXIST)
                 return ret;
         }
     }
-    ret = mkdir(pathname, mode);
+    ret = make_dir(pathname, mode);
     if (ret && errno != EEXIST)
         return ret;
     return 0;
@@ -451,3 +463,52 @@
         ptr = x;
     }
 }
+
+int make_dir(const char *path, mode_t mode)
+{
+    int rc;
+
+#ifdef HAVE_SELINUX
+    char *secontext = NULL;
+
+    if (sehandle) {
+        selabel_lookup(sehandle, &secontext, path, mode);
+        setfscreatecon(secontext);
+    }
+#endif
+
+    rc = mkdir(path, mode);
+
+#ifdef HAVE_SELINUX
+    if (secontext) {
+        int save_errno = errno;
+        freecon(secontext);
+        setfscreatecon(NULL);
+        errno = save_errno;
+    }
+#endif
+    return rc;
+}
+
+int restorecon(const char *pathname)
+{
+#ifdef HAVE_SELINUX
+    char *secontext = NULL;
+    struct stat sb;
+    int i;
+
+    if (is_selinux_enabled() <= 0 || !sehandle)
+        return 0;
+
+    if (lstat(pathname, &sb) < 0)
+        return -errno;
+    if (selabel_lookup(sehandle, &secontext, pathname, sb.st_mode) < 0)
+        return -errno;
+    if (lsetfilecon(pathname, secontext) < 0) {
+        freecon(secontext);
+        return -errno;
+    }
+    freecon(secontext);
+#endif
+    return 0;
+}
diff --git a/init/util.h b/init/util.h
index 9247739..45905b6 100644
--- a/init/util.h
+++ b/init/util.h
@@ -39,4 +39,6 @@
 void open_devnull_stdio(void);
 void get_hardware_name(char *hardware, unsigned int *revision);
 void import_kernel_cmdline(int in_qemu, void (*import_kernel_nv)(char *name, int in_qemu));
+int make_dir(const char *path, mode_t mode);
+int restorecon(const char *pathname);
 #endif
diff --git a/libcorkscrew/Android.mk b/libcorkscrew/Android.mk
new file mode 100644
index 0000000..433f93c
--- /dev/null
+++ b/libcorkscrew/Android.mk
@@ -0,0 +1,46 @@
+# Copyright (C) 2011 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+	backtrace.c \
+	backtrace-helper.c \
+	demangle.c \
+	map_info.c \
+	ptrace.c \
+	symbol_table.c
+
+ifeq ($(TARGET_ARCH),arm)
+LOCAL_SRC_FILES += \
+	arch-arm/backtrace-arm.c \
+	arch-arm/ptrace-arm.c
+LOCAL_CFLAGS += -DCORKSCREW_HAVE_ARCH
+endif
+ifeq ($(TARGET_ARCH),x86)
+LOCAL_SRC_FILES += \
+	arch-x86/backtrace-x86.c \
+	arch-x86/ptrace-x86.c
+LOCAL_CFLAGS += -DCORKSCREW_HAVE_ARCH
+endif
+
+LOCAL_SHARED_LIBRARIES += libdl libcutils libgccdemangle
+
+LOCAL_CFLAGS += -std=gnu99 -Werror
+LOCAL_MODULE := libcorkscrew
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libcorkscrew/MODULE_LICENSE_APACHE2 b/libcorkscrew/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/libcorkscrew/MODULE_LICENSE_APACHE2
diff --git a/libcorkscrew/NOTICE b/libcorkscrew/NOTICE
new file mode 100644
index 0000000..becc120
--- /dev/null
+++ b/libcorkscrew/NOTICE
@@ -0,0 +1,190 @@
+
+   Copyright (c) 2011, The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
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diff --git a/libcorkscrew/arch-arm/backtrace-arm.c b/libcorkscrew/arch-arm/backtrace-arm.c
new file mode 100644
index 0000000..5b91164
--- /dev/null
+++ b/libcorkscrew/arch-arm/backtrace-arm.c
@@ -0,0 +1,589 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Backtracing functions for ARM.
+ *
+ * This implementation uses the exception unwinding tables provided by
+ * the compiler to unwind call frames.  Refer to the ARM Exception Handling ABI
+ * documentation (EHABI) for more details about what's going on here.
+ *
+ * An ELF binary may contain an EXIDX section that provides an index to
+ * the exception handling table of each function, sorted by program
+ * counter address.
+ *
+ * This implementation also supports unwinding other processes via ptrace().
+ * In that case, the EXIDX section is found by reading the ELF section table
+ * structures using ptrace().
+ *
+ * Because the tables are used for exception handling, it can happen that
+ * a given function will not have an exception handling table.  In particular,
+ * exceptions are assumed to only ever be thrown at call sites.  Therefore,
+ * by definition leaf functions will not have exception handling tables.
+ * This may make unwinding impossible in some cases although we can still get
+ * some idea of the call stack by examining the PC and LR registers.
+ *
+ * As we are only interested in backtrace information, we do not need
+ * to perform all of the work of unwinding such as restoring register
+ * state and running cleanup functions.  Unwinding is performed virtually on
+ * an abstract machine context consisting of just the ARM core registers.
+ * Furthermore, we do not run generic "personality functions" because
+ * we may not be in a position to execute arbitrary code, especially if
+ * we are running in a signal handler or using ptrace()!
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include "../backtrace-arch.h"
+#include "../backtrace-helper.h"
+#include "../ptrace-arch.h"
+#include <corkscrew/ptrace.h>
+
+#include <stdlib.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/ptrace.h>
+#include <sys/exec_elf.h>
+#include <cutils/log.h>
+
+/* Machine context at the time a signal was raised. */
+typedef struct ucontext {
+    uint32_t uc_flags;
+    struct ucontext* uc_link;
+    stack_t uc_stack;
+    struct sigcontext {
+        uint32_t trap_no;
+        uint32_t error_code;
+        uint32_t oldmask;
+        uint32_t gregs[16];
+        uint32_t arm_cpsr;
+        uint32_t fault_address;
+    } uc_mcontext;
+    uint32_t uc_sigmask;
+} ucontext_t;
+
+/* Unwind state. */
+typedef struct {
+    uint32_t gregs[16];
+} unwind_state_t;
+
+static const int R_SP = 13;
+static const int R_LR = 14;
+static const int R_PC = 15;
+
+/* Special EXIDX value that indicates that a frame cannot be unwound. */
+static const uint32_t EXIDX_CANTUNWIND = 1;
+
+/* Get the EXIDX section start and size for the module that contains a
+ * given program counter address.
+ *
+ * When the executable is statically linked, the EXIDX section can be
+ * accessed by querying the values of the __exidx_start and __exidx_end
+ * symbols.
+ *
+ * When the executable is dynamically linked, the linker exports a function
+ * called dl_unwind_find_exidx that obtains the EXIDX section for a given
+ * absolute program counter address.
+ *
+ * Bionic exports a helpful function called __gnu_Unwind_Find_exidx that
+ * handles both cases, so we use that here.
+ */
+typedef long unsigned int* _Unwind_Ptr;
+extern _Unwind_Ptr __gnu_Unwind_Find_exidx(_Unwind_Ptr pc, int *pcount);
+
+static uintptr_t find_exidx(uintptr_t pc, size_t* out_exidx_size) {
+    int count;
+    uintptr_t start = (uintptr_t)__gnu_Unwind_Find_exidx((_Unwind_Ptr)pc, &count);
+    *out_exidx_size = count;
+    return start;
+}
+
+/* Transforms a 31-bit place-relative offset to an absolute address.
+ * We assume the most significant bit is clear. */
+static uintptr_t prel_to_absolute(uintptr_t place, uint32_t prel_offset) {
+    return place + (((int32_t)(prel_offset << 1)) >> 1);
+}
+
+static uintptr_t get_exception_handler(const memory_t* memory,
+        const map_info_t* map_info_list, uintptr_t pc) {
+    if (!pc) {
+        ALOGV("get_exception_handler: pc is zero, no handler");
+        return 0;
+    }
+
+    uintptr_t exidx_start;
+    size_t exidx_size;
+    const map_info_t* mi;
+    if (memory->tid < 0) {
+        mi = NULL;
+        exidx_start = find_exidx(pc, &exidx_size);
+    } else {
+        mi = find_map_info(map_info_list, pc);
+        if (mi && mi->data) {
+            const map_info_data_t* data = (const map_info_data_t*)mi->data;
+            exidx_start = data->exidx_start;
+            exidx_size = data->exidx_size;
+        } else {
+            exidx_start = 0;
+            exidx_size = 0;
+        }
+    }
+
+    uintptr_t handler = 0;
+    int32_t handler_index = -1;
+    if (exidx_start) {
+        uint32_t low = 0;
+        uint32_t high = exidx_size;
+        while (low < high) {
+            uint32_t index = (low + high) / 2;
+            uintptr_t entry = exidx_start + index * 8;
+            uint32_t entry_prel_pc;
+            ALOGV("XXX low=%u, high=%u, index=%u", low, high, index);
+            if (!try_get_word(memory, entry, &entry_prel_pc)) {
+                break;
+            }
+            uintptr_t entry_pc = prel_to_absolute(entry, entry_prel_pc);
+            ALOGV("XXX entry_pc=0x%08x", entry_pc);
+            if (pc < entry_pc) {
+                high = index;
+                continue;
+            }
+            if (index + 1 < exidx_size) {
+                uintptr_t next_entry = entry + 8;
+                uint32_t next_entry_prel_pc;
+                if (!try_get_word(memory, next_entry, &next_entry_prel_pc)) {
+                    break;
+                }
+                uintptr_t next_entry_pc = prel_to_absolute(next_entry, next_entry_prel_pc);
+                ALOGV("XXX next_entry_pc=0x%08x", next_entry_pc);
+                if (pc >= next_entry_pc) {
+                    low = index + 1;
+                    continue;
+                }
+            }
+
+            uintptr_t entry_handler_ptr = entry + 4;
+            uint32_t entry_handler;
+            if (!try_get_word(memory, entry_handler_ptr, &entry_handler)) {
+                break;
+            }
+            if (entry_handler & (1L << 31)) {
+                handler = entry_handler_ptr; // in-place handler data
+            } else if (entry_handler != EXIDX_CANTUNWIND) {
+                handler = prel_to_absolute(entry_handler_ptr, entry_handler);
+            }
+            handler_index = index;
+            break;
+        }
+    }
+    if (mi) {
+        ALOGV("get_exception_handler: pc=0x%08x, module='%s', module_start=0x%08x, "
+                "exidx_start=0x%08x, exidx_size=%d, handler=0x%08x, handler_index=%d",
+                pc, mi->name, mi->start, exidx_start, exidx_size, handler, handler_index);
+    } else {
+        ALOGV("get_exception_handler: pc=0x%08x, "
+                "exidx_start=0x%08x, exidx_size=%d, handler=0x%08x, handler_index=%d",
+                pc, exidx_start, exidx_size, handler, handler_index);
+    }
+    return handler;
+}
+
+typedef struct {
+    uintptr_t ptr;
+    uint32_t word;
+} byte_stream_t;
+
+static bool try_next_byte(const memory_t* memory, byte_stream_t* stream, uint8_t* out_value) {
+    uint8_t result;
+    switch (stream->ptr & 3) {
+    case 0:
+        if (!try_get_word(memory, stream->ptr, &stream->word)) {
+            *out_value = 0;
+            return false;
+        }
+        *out_value = stream->word >> 24;
+        break;
+
+    case 1:
+        *out_value = stream->word >> 16;
+        break;
+
+    case 2:
+        *out_value = stream->word >> 8;
+        break;
+
+    default:
+        *out_value = stream->word;
+        break;
+    }
+
+    ALOGV("next_byte: ptr=0x%08x, value=0x%02x", stream->ptr, *out_value);
+    stream->ptr += 1;
+    return true;
+}
+
+static void set_reg(unwind_state_t* state, uint32_t reg, uint32_t value) {
+    ALOGV("set_reg: reg=%d, value=0x%08x", reg, value);
+    state->gregs[reg] = value;
+}
+
+static bool try_pop_registers(const memory_t* memory, unwind_state_t* state, uint32_t mask) {
+    uint32_t sp = state->gregs[R_SP];
+    bool sp_updated = false;
+    for (int i = 0; i < 16; i++) {
+        if (mask & (1 << i)) {
+            uint32_t value;
+            if (!try_get_word(memory, sp, &value)) {
+                return false;
+            }
+            if (i == R_SP) {
+                sp_updated = true;
+            }
+            set_reg(state, i, value);
+            sp += 4;
+        }
+    }
+    if (!sp_updated) {
+        set_reg(state, R_SP, sp);
+    }
+    return true;
+}
+
+/* Executes a built-in personality routine as defined in the EHABI.
+ * Returns true if unwinding should continue.
+ *
+ * The data for the built-in personality routines consists of a sequence
+ * of unwinding instructions, followed by a sequence of scope descriptors,
+ * each of which has a length and offset encoded using 16-bit or 32-bit
+ * values.
+ *
+ * We only care about the unwinding instructions.  They specify the
+ * operations of an abstract machine whose purpose is to transform the
+ * virtual register state (including the stack pointer) such that
+ * the call frame is unwound and the PC register points to the call site.
+ */
+static bool execute_personality_routine(const memory_t* memory,
+        unwind_state_t* state, byte_stream_t* stream, int pr_index) {
+    size_t size;
+    switch (pr_index) {
+    case 0: // Personality routine #0, short frame, descriptors have 16-bit scope.
+        size = 3;
+        break;
+    case 1: // Personality routine #1, long frame, descriptors have 16-bit scope.
+    case 2: { // Personality routine #2, long frame, descriptors have 32-bit scope.
+        uint8_t size_byte;
+        if (!try_next_byte(memory, stream, &size_byte)) {
+            return false;
+        }
+        size = (uint32_t)size_byte * sizeof(uint32_t) + 2;
+        break;
+    }
+    default: // Unknown personality routine.  Stop here.
+        return false;
+    }
+
+    bool pc_was_set = false;
+    while (size--) {
+        uint8_t op;
+        if (!try_next_byte(memory, stream, &op)) {
+            return false;
+        }
+        if ((op & 0xc0) == 0x00) {
+            // "vsp = vsp + (xxxxxx << 2) + 4"
+            set_reg(state, R_SP, state->gregs[R_SP] + ((op & 0x3f) << 2) + 4);
+        } else if ((op & 0xc0) == 0x40) {
+            // "vsp = vsp - (xxxxxx << 2) - 4"
+            set_reg(state, R_SP, state->gregs[R_SP] - ((op & 0x3f) << 2) - 4);
+        } else if ((op & 0xf0) == 0x80) {
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            uint32_t mask = (((uint32_t)op & 0x0f) << 12) | ((uint32_t)op2 << 4);
+            if (mask) {
+                // "Pop up to 12 integer registers under masks {r15-r12}, {r11-r4}"
+                if (!try_pop_registers(memory, state, mask)) {
+                    return false;
+                }
+                if (mask & (1 << R_PC)) {
+                    pc_was_set = true;
+                }
+            } else {
+                // "Refuse to unwind"
+                return false;
+            }
+        } else if ((op & 0xf0) == 0x90) {
+            if (op != 0x9d && op != 0x9f) {
+                // "Set vsp = r[nnnn]"
+                set_reg(state, R_SP, state->gregs[op & 0x0f]);
+            } else {
+                // "Reserved as prefix for ARM register to register moves"
+                // "Reserved as prefix for Intel Wireless MMX register to register moves"
+                return false;
+            }
+        } else if ((op & 0xf8) == 0xa0) {
+            // "Pop r4-r[4+nnn]"
+            uint32_t mask = (0x0ff0 >> (7 - (op & 0x07))) & 0x0ff0;
+            if (!try_pop_registers(memory, state, mask)) {
+                return false;
+            }
+        } else if ((op & 0xf8) == 0xa8) {
+            // "Pop r4-r[4+nnn], r14"
+            uint32_t mask = ((0x0ff0 >> (7 - (op & 0x07))) & 0x0ff0) | 0x4000;
+            if (!try_pop_registers(memory, state, mask)) {
+                return false;
+            }
+        } else if (op == 0xb0) {
+            // "Finish"
+            break;
+        } else if (op == 0xb1) {
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            if (op2 != 0x00 && (op2 & 0xf0) == 0x00) {
+                // "Pop integer registers under mask {r3, r2, r1, r0}"
+                if (!try_pop_registers(memory, state, op2)) {
+                    return false;
+                }
+            } else {
+                // "Spare"
+                return false;
+            }
+        } else if (op == 0xb2) {
+            // "vsp = vsp + 0x204 + (uleb128 << 2)"
+            uint32_t value = 0;
+            uint32_t shift = 0;
+            uint8_t op2;
+            do {
+                if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                    return false;
+                }
+                value |= (op2 & 0x7f) << shift;
+                shift += 7;
+            } while (op2 & 0x80);
+            set_reg(state, R_SP, state->gregs[R_SP] + (value << 2) + 0x204);
+        } else if (op == 0xb3) {
+            // "Pop VFP double-precision registers D[ssss]-D[ssss+cccc] saved (as if) by FSTMFDX"
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op2 & 0x0f) * 8 + 12);
+        } else if ((op & 0xf8) == 0xb8) {
+            // "Pop VFP double-precision registers D[8]-D[8+nnn] saved (as if) by FSTMFDX"
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op & 0x07) * 8 + 12);
+        } else if ((op & 0xf8) == 0xc0) {
+            // "Intel Wireless MMX pop wR[10]-wR[10+nnn]"
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op & 0x07) * 8 + 8);
+        } else if (op == 0xc6) {
+            // "Intel Wireless MMX pop wR[ssss]-wR[ssss+cccc]"
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op2 & 0x0f) * 8 + 8);
+        } else if (op == 0xc7) {
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            if (op2 != 0x00 && (op2 & 0xf0) == 0x00) {
+                // "Intel Wireless MMX pop wCGR registers under mask {wCGR3,2,1,0}"
+                set_reg(state, R_SP, state->gregs[R_SP] + __builtin_popcount(op2) * 4);
+            } else {
+                // "Spare"
+                return false;
+            }
+        } else if (op == 0xc8) {
+            // "Pop VFP double precision registers D[16+ssss]-D[16+ssss+cccc]
+            // saved (as if) by FSTMFD"
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op2 & 0x0f) * 8 + 8);
+        } else if (op == 0xc9) {
+            // "Pop VFP double precision registers D[ssss]-D[ssss+cccc] saved (as if) by FSTMFDD"
+            uint8_t op2;
+            if (!(size--) || !try_next_byte(memory, stream, &op2)) {
+                return false;
+            }
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op2 & 0x0f) * 8 + 8);
+        } else if ((op == 0xf8) == 0xd0) {
+            // "Pop VFP double-precision registers D[8]-D[8+nnn] saved (as if) by FSTMFDD"
+            set_reg(state, R_SP, state->gregs[R_SP] + (uint32_t)(op & 0x07) * 8 + 8);
+        } else {
+            // "Spare"
+            return false;
+        }
+    }
+    if (!pc_was_set) {
+        set_reg(state, R_PC, state->gregs[R_LR]);
+    }
+    return true;
+}
+
+static bool try_get_half_word(const memory_t* memory, uint32_t pc, uint16_t* out_value) {
+    uint32_t word;
+    if (try_get_word(memory, pc & ~2, &word)) {
+        *out_value = pc & 2 ? word >> 16 : word & 0xffff;
+        return true;
+    }
+    return false;
+}
+
+uintptr_t rewind_pc_arch(const memory_t* memory, uintptr_t pc) {
+    if (pc & 1) {
+        /* Thumb mode - need to check whether the bl(x) has long offset or not.
+         * Examples:
+         *
+         * arm blx in the middle of thumb:
+         * 187ae:       2300            movs    r3, #0
+         * 187b0:       f7fe ee1c       blx     173ec
+         * 187b4:       2c00            cmp     r4, #0
+         *
+         * arm bl in the middle of thumb:
+         * 187d8:       1c20            adds    r0, r4, #0
+         * 187da:       f136 fd15       bl      14f208
+         * 187de:       2800            cmp     r0, #0
+         *
+         * pure thumb:
+         * 18894:       189b            adds    r3, r3, r2
+         * 18896:       4798            blx     r3
+         * 18898:       b001            add     sp, #4
+         */
+        uint16_t prev1, prev2;
+        if (try_get_half_word(memory, pc - 5, &prev1)
+            && ((prev1 & 0xf000) == 0xf000)
+            && try_get_half_word(memory, pc - 3, &prev2)
+            && ((prev2 & 0xe000) == 0xe000)) {
+            pc -= 4; // long offset
+        } else {
+            pc -= 2;
+        }
+    } else {
+        /* ARM mode, all instructions are 32bit.  Yay! */
+        pc -= 4;
+    }
+    return pc;
+}
+
+static ssize_t unwind_backtrace_common(const memory_t* memory,
+        const map_info_t* map_info_list,
+        unwind_state_t* state, backtrace_frame_t* backtrace,
+        size_t ignore_depth, size_t max_depth) {
+    size_t ignored_frames = 0;
+    size_t returned_frames = 0;
+
+    for (size_t index = 0; returned_frames < max_depth; index++) {
+        uintptr_t pc = index ? rewind_pc_arch(memory, state->gregs[R_PC])
+                : state->gregs[R_PC];
+        backtrace_frame_t* frame = add_backtrace_entry(pc,
+                backtrace, ignore_depth, max_depth, &ignored_frames, &returned_frames);
+        if (frame) {
+            frame->stack_top = state->gregs[R_SP];
+        }
+
+        uintptr_t handler = get_exception_handler(memory, map_info_list, pc);
+        if (!handler) {
+            // If there is no handler for the PC and this is the first frame,
+            // then the program may have branched to an invalid address.
+            // Try starting from the LR instead, otherwise stop unwinding.
+            if (index == 0 && state->gregs[R_LR]
+                    && state->gregs[R_LR] != state->gregs[R_PC]) {
+                set_reg(state, R_PC, state->gregs[R_LR]);
+                continue;
+            } else {
+                break;
+            }
+        }
+
+        byte_stream_t stream;
+        stream.ptr = handler;
+        uint8_t pr;
+        if (!try_next_byte(memory, &stream, &pr)) {
+            break;
+        }
+        if ((pr & 0xf0) != 0x80) {
+            // The first word is a place-relative pointer to a generic personality
+            // routine function.  We don't support invoking such functions, so stop here.
+            break;
+        }
+
+        // The first byte indicates the personality routine to execute.
+        // Following bytes provide instructions to the personality routine.
+        if (!execute_personality_routine(memory, state, &stream, pr & 0x0f)) {
+            break;
+        }
+        if (frame && state->gregs[R_SP] > frame->stack_top) {
+            frame->stack_size = state->gregs[R_SP] - frame->stack_top;
+        }
+        if (!state->gregs[R_PC]) {
+            break;
+        }
+    }
+
+    // Ran out of frames that we could unwind using handlers.
+    // Add a final entry for the LR if it looks sane and call it good.
+    if (returned_frames < max_depth
+            && state->gregs[R_LR]
+            && state->gregs[R_LR] != state->gregs[R_PC]
+            && is_executable_map(map_info_list, state->gregs[R_LR])) {
+        // We don't know where the stack for this extra frame starts so we
+        // don't return any stack information for it.
+        add_backtrace_entry(rewind_pc_arch(memory, state->gregs[R_LR]),
+                backtrace, ignore_depth, max_depth, &ignored_frames, &returned_frames);
+    }
+    return returned_frames;
+}
+
+ssize_t unwind_backtrace_signal_arch(siginfo_t* siginfo, void* sigcontext,
+        const map_info_t* map_info_list,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth) {
+    const ucontext_t* uc = (const ucontext_t*)sigcontext;
+
+    unwind_state_t state;
+    for (int i = 0; i < 16; i++) {
+        state.gregs[i] = uc->uc_mcontext.gregs[i];
+    }
+
+    memory_t memory;
+    init_memory(&memory, map_info_list);
+    return unwind_backtrace_common(&memory, map_info_list, &state,
+            backtrace, ignore_depth, max_depth);
+}
+
+ssize_t unwind_backtrace_ptrace_arch(pid_t tid, const ptrace_context_t* context,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth) {
+    struct pt_regs regs;
+    if (ptrace(PTRACE_GETREGS, tid, 0, &regs)) {
+        return -1;
+    }
+
+    unwind_state_t state;
+    for (int i = 0; i < 16; i++) {
+        state.gregs[i] = regs.uregs[i];
+    }
+
+    memory_t memory;
+    init_memory_ptrace(&memory, tid);
+    return unwind_backtrace_common(&memory, context->map_info_list, &state,
+            backtrace, ignore_depth, max_depth);
+}
diff --git a/libcorkscrew/arch-arm/ptrace-arm.c b/libcorkscrew/arch-arm/ptrace-arm.c
new file mode 100644
index 0000000..868230c
--- /dev/null
+++ b/libcorkscrew/arch-arm/ptrace-arm.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include "../ptrace-arch.h"
+
+#include <sys/exec_elf.h>
+#include <cutils/log.h>
+
+#ifndef PT_ARM_EXIDX
+#define PT_ARM_EXIDX 0x70000001
+#endif
+
+static void load_exidx_header(pid_t pid, map_info_t* mi,
+        uintptr_t* out_exidx_start, size_t* out_exidx_size) {
+    uint32_t elf_phoff;
+    uint32_t elf_phentsize_phnum;
+    if (try_get_word_ptrace(pid, mi->start + offsetof(Elf32_Ehdr, e_phoff), &elf_phoff)
+            && try_get_word_ptrace(pid, mi->start + offsetof(Elf32_Ehdr, e_phnum),
+                    &elf_phentsize_phnum)) {
+        uint32_t elf_phentsize = elf_phentsize_phnum >> 16;
+        uint32_t elf_phnum = elf_phentsize_phnum & 0xffff;
+        for (uint32_t i = 0; i < elf_phnum; i++) {
+            uintptr_t elf_phdr = mi->start + elf_phoff + i * elf_phentsize;
+            uint32_t elf_phdr_type;
+            if (!try_get_word_ptrace(pid, elf_phdr + offsetof(Elf32_Phdr, p_type), &elf_phdr_type)) {
+                break;
+            }
+            if (elf_phdr_type == PT_ARM_EXIDX) {
+                uint32_t elf_phdr_offset;
+                uint32_t elf_phdr_filesz;
+                if (!try_get_word_ptrace(pid, elf_phdr + offsetof(Elf32_Phdr, p_offset),
+                        &elf_phdr_offset)
+                        || !try_get_word_ptrace(pid, elf_phdr + offsetof(Elf32_Phdr, p_filesz),
+                                &elf_phdr_filesz)) {
+                    break;
+                }
+                *out_exidx_start = mi->start + elf_phdr_offset;
+                *out_exidx_size = elf_phdr_filesz / 8;
+                ALOGV("Parsed EXIDX header info for %s: start=0x%08x, size=%d", mi->name,
+                        *out_exidx_start, *out_exidx_size);
+                return;
+            }
+        }
+    }
+    *out_exidx_start = 0;
+    *out_exidx_size = 0;
+}
+
+void load_ptrace_map_info_data_arch(pid_t pid, map_info_t* mi, map_info_data_t* data) {
+    load_exidx_header(pid, mi, &data->exidx_start, &data->exidx_size);
+}
+
+void free_ptrace_map_info_data_arch(map_info_t* mi, map_info_data_t* data) {
+}
diff --git a/libcorkscrew/arch-x86/backtrace-x86.c b/libcorkscrew/arch-x86/backtrace-x86.c
new file mode 100644
index 0000000..24fadcb
--- /dev/null
+++ b/libcorkscrew/arch-x86/backtrace-x86.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Backtracing functions for x86.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include "../backtrace-arch.h"
+#include "../backtrace-helper.h"
+#include <corkscrew/ptrace.h>
+
+#include <stdlib.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/ptrace.h>
+#include <sys/exec_elf.h>
+#include <cutils/log.h>
+
+/* Machine context at the time a signal was raised. */
+typedef struct ucontext {
+    uint32_t uc_flags;
+    struct ucontext* uc_link;
+    stack_t uc_stack;
+    struct sigcontext {
+        uint32_t gs;
+        uint32_t fs;
+        uint32_t es;
+        uint32_t ds;
+        uint32_t edi;
+        uint32_t esi;
+        uint32_t ebp;
+        uint32_t esp;
+        uint32_t ebx;
+        uint32_t edx;
+        uint32_t ecx;
+        uint32_t eax;
+        uint32_t trapno;
+        uint32_t err;
+        uint32_t eip;
+        uint32_t cs;
+        uint32_t efl;
+        uint32_t uesp;
+        uint32_t ss;
+        void* fpregs;
+        uint32_t oldmask;
+        uint32_t cr2;
+    } uc_mcontext;
+    uint32_t uc_sigmask;
+} ucontext_t;
+
+/* Unwind state. */
+typedef struct {
+    uint32_t ebp;
+    uint32_t eip;
+    uint32_t esp;
+} unwind_state_t;
+
+uintptr_t rewind_pc_arch(const memory_t* memory, uintptr_t pc) {
+    // TODO: Implement for x86.
+    return pc;
+}
+
+static ssize_t unwind_backtrace_common(const memory_t* memory,
+        const map_info_t* map_info_list,
+        unwind_state_t* state, backtrace_frame_t* backtrace,
+        size_t ignore_depth, size_t max_depth) {
+    size_t ignored_frames = 0;
+    size_t returned_frames = 0;
+
+    for (size_t index = 0; state->ebp && returned_frames < max_depth; index++) {
+        backtrace_frame_t* frame = add_backtrace_entry(
+                index ? rewind_pc_arch(memory, state->eip) : state->eip,
+                backtrace, ignore_depth, max_depth,
+                &ignored_frames, &returned_frames);
+        uint32_t next_esp = state->ebp + 8;
+        if (frame) {
+            frame->stack_top = state->esp;
+            if (state->esp < next_esp) {
+                frame->stack_size = next_esp - state->esp;
+            }
+        }
+        state->esp = next_esp;
+        if (!try_get_word(memory, state->ebp + 4, &state->eip)
+                || !try_get_word(memory, state->ebp, &state->ebp)
+                || !state->eip) {
+            break;
+        }
+    }
+
+    return returned_frames;
+}
+
+ssize_t unwind_backtrace_signal_arch(siginfo_t* siginfo, void* sigcontext,
+        const map_info_t* map_info_list,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth) {
+    const ucontext_t* uc = (const ucontext_t*)sigcontext;
+
+    unwind_state_t state;
+    state.ebp = uc->uc_mcontext.ebp;
+    state.eip = uc->uc_mcontext.eip;
+    state.esp = uc->uc_mcontext.esp;
+
+    memory_t memory;
+    init_memory(&memory, map_info_list);
+    return unwind_backtrace_common(&memory, map_info_list,
+            &state, backtrace, ignore_depth, max_depth);
+}
+
+ssize_t unwind_backtrace_ptrace_arch(pid_t tid, const ptrace_context_t* context,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth) {
+    pt_regs_x86_t regs;
+    if (ptrace(PTRACE_GETREGS, tid, 0, &regs)) {
+        return -1;
+    }
+
+    unwind_state_t state;
+    state.ebp = regs.ebp;
+    state.eip = regs.eip;
+    state.esp = regs.esp;
+
+    memory_t memory;
+    init_memory_ptrace(&memory, tid);
+    return unwind_backtrace_common(&memory, context->map_info_list,
+            &state, backtrace, ignore_depth, max_depth);
+}
diff --git a/nexus/SupplicantEvent.cpp b/libcorkscrew/arch-x86/ptrace-x86.c
similarity index 65%
rename from nexus/SupplicantEvent.cpp
rename to libcorkscrew/arch-x86/ptrace-x86.c
index faf7b45..f0ea110 100644
--- a/nexus/SupplicantEvent.cpp
+++ b/libcorkscrew/arch-x86/ptrace-x86.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,16 +14,15 @@
  * limitations under the License.
  */
 
-#include <stdlib.h>
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
 
-#define LOG_TAG "SupplicantEvent"
+#include "../ptrace-arch.h"
+
 #include <cutils/log.h>
 
-#include "SupplicantEvent.h"
+void load_ptrace_map_info_data_arch(pid_t pid, map_info_t* mi, map_info_data_t* data) {
+}
 
-#include "libwpa_client/wpa_ctrl.h"
-
-SupplicantEvent::SupplicantEvent(int type, int level) {
-    mType = type;
-    mLevel = level;
+void free_ptrace_map_info_data_arch(map_info_t* mi, map_info_data_t* data) {
 }
diff --git a/libcorkscrew/backtrace-arch.h b/libcorkscrew/backtrace-arch.h
new file mode 100644
index 0000000..a46f80b
--- /dev/null
+++ b/libcorkscrew/backtrace-arch.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Architecture dependent functions. */
+
+#ifndef _CORKSCREW_BACKTRACE_ARCH_H
+#define _CORKSCREW_BACKTRACE_ARCH_H
+
+#include "ptrace-arch.h"
+#include <corkscrew/backtrace.h>
+
+#include <signal.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Rewind the program counter by one instruction. */
+uintptr_t rewind_pc_arch(const memory_t* memory, uintptr_t pc);
+
+ssize_t unwind_backtrace_signal_arch(siginfo_t* siginfo, void* sigcontext,
+        const map_info_t* map_info_list,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth);
+
+ssize_t unwind_backtrace_ptrace_arch(pid_t tid, const ptrace_context_t* context,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_BACKTRACE_ARCH_H
diff --git a/libcorkscrew/backtrace-helper.c b/libcorkscrew/backtrace-helper.c
new file mode 100644
index 0000000..bf9d3f3
--- /dev/null
+++ b/libcorkscrew/backtrace-helper.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include "backtrace-helper.h"
+
+#include <cutils/log.h>
+
+backtrace_frame_t* add_backtrace_entry(uintptr_t pc, backtrace_frame_t* backtrace,
+        size_t ignore_depth, size_t max_depth,
+        size_t* ignored_frames, size_t* returned_frames) {
+    if (*ignored_frames < ignore_depth) {
+        *ignored_frames += 1;
+        return NULL;
+    }
+    if (*returned_frames >= max_depth) {
+        return NULL;
+    }
+    backtrace_frame_t* frame = &backtrace[*returned_frames];
+    frame->absolute_pc = pc;
+    frame->stack_top = 0;
+    frame->stack_size = 0;
+    *returned_frames += 1;
+    return frame;
+}
diff --git a/libcorkscrew/backtrace-helper.h b/libcorkscrew/backtrace-helper.h
new file mode 100644
index 0000000..4d8a874
--- /dev/null
+++ b/libcorkscrew/backtrace-helper.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Backtrace helper functions. */
+
+#ifndef _CORKSCREW_BACKTRACE_HELPER_H
+#define _CORKSCREW_BACKTRACE_HELPER_H
+
+#include <corkscrew/backtrace.h>
+#include <sys/types.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Add a program counter to a backtrace if it will fit.
+ * Returns the newly added frame, or NULL if none.
+ */
+backtrace_frame_t* add_backtrace_entry(uintptr_t pc,
+        backtrace_frame_t* backtrace,
+        size_t ignore_depth, size_t max_depth,
+        size_t* ignored_frames, size_t* returned_frames);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_BACKTRACE_HELPER_H
diff --git a/libcorkscrew/backtrace.c b/libcorkscrew/backtrace.c
new file mode 100644
index 0000000..fa21574
--- /dev/null
+++ b/libcorkscrew/backtrace.c
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include "backtrace-arch.h"
+#include "backtrace-helper.h"
+#include "ptrace-arch.h"
+#include <corkscrew/map_info.h>
+#include <corkscrew/symbol_table.h>
+#include <corkscrew/ptrace.h>
+#include <corkscrew/demangle.h>
+
+#include <unistd.h>
+#include <signal.h>
+#include <pthread.h>
+#include <unwind.h>
+#include <sys/exec_elf.h>
+#include <cutils/log.h>
+#include <cutils/atomic.h>
+
+#if HAVE_DLADDR
+#include <dlfcn.h>
+#endif
+
+typedef struct {
+    backtrace_frame_t* backtrace;
+    size_t ignore_depth;
+    size_t max_depth;
+    size_t ignored_frames;
+    size_t returned_frames;
+    memory_t memory;
+} backtrace_state_t;
+
+static _Unwind_Reason_Code unwind_backtrace_callback(struct _Unwind_Context* context, void* arg) {
+    backtrace_state_t* state = (backtrace_state_t*)arg;
+    uintptr_t pc = _Unwind_GetIP(context);
+    if (pc) {
+        // TODO: Get information about the stack layout from the _Unwind_Context.
+        //       This will require a new architecture-specific function to query
+        //       the appropriate registers.  Current callers of unwind_backtrace
+        //       don't need this information, so we won't bother collecting it just yet.
+        add_backtrace_entry(rewind_pc_arch(&state->memory, pc), state->backtrace,
+                state->ignore_depth, state->max_depth,
+                &state->ignored_frames, &state->returned_frames);
+    }
+    return state->returned_frames < state->max_depth ? _URC_NO_REASON : _URC_END_OF_STACK;
+}
+
+ssize_t unwind_backtrace(backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth) {
+    ALOGV("Unwinding current thread %d.", gettid());
+
+    map_info_t* milist = acquire_my_map_info_list();
+
+    backtrace_state_t state;
+    state.backtrace = backtrace;
+    state.ignore_depth = ignore_depth;
+    state.max_depth = max_depth;
+    state.ignored_frames = 0;
+    state.returned_frames = 0;
+    init_memory(&state.memory, milist);
+
+    _Unwind_Reason_Code rc =_Unwind_Backtrace(unwind_backtrace_callback, &state);
+
+    release_my_map_info_list(milist);
+
+    if (state.returned_frames) {
+        return state.returned_frames;
+    }
+    return rc == _URC_END_OF_STACK ? 0 : -1;
+}
+
+#ifdef CORKSCREW_HAVE_ARCH
+static const int32_t STATE_DUMPING = -1;
+static const int32_t STATE_DONE = -2;
+static const int32_t STATE_CANCEL = -3;
+
+static pthread_mutex_t g_unwind_signal_mutex = PTHREAD_MUTEX_INITIALIZER;
+static volatile struct {
+    int32_t tid_state;
+    const map_info_t* map_info_list;
+    backtrace_frame_t* backtrace;
+    size_t ignore_depth;
+    size_t max_depth;
+    size_t returned_frames;
+} g_unwind_signal_state;
+
+static void unwind_backtrace_thread_signal_handler(int n, siginfo_t* siginfo, void* sigcontext) {
+    if (!android_atomic_acquire_cas(gettid(), STATE_DUMPING, &g_unwind_signal_state.tid_state)) {
+        g_unwind_signal_state.returned_frames = unwind_backtrace_signal_arch(
+                siginfo, sigcontext,
+                g_unwind_signal_state.map_info_list,
+                g_unwind_signal_state.backtrace,
+                g_unwind_signal_state.ignore_depth,
+                g_unwind_signal_state.max_depth);
+        android_atomic_release_store(STATE_DONE, &g_unwind_signal_state.tid_state);
+    } else {
+        ALOGV("Received spurious SIGURG on thread %d that was intended for thread %d.",
+                gettid(), android_atomic_acquire_load(&g_unwind_signal_state.tid_state));
+    }
+}
+#endif
+
+extern int tgkill(int tgid, int tid, int sig);
+
+ssize_t unwind_backtrace_thread(pid_t tid, backtrace_frame_t* backtrace,
+        size_t ignore_depth, size_t max_depth) {
+    if (tid == gettid()) {
+        return unwind_backtrace(backtrace, ignore_depth + 1, max_depth);
+    }
+
+    ALOGV("Unwinding thread %d from thread %d.", tid, gettid());
+
+#ifdef CORKSCREW_HAVE_ARCH
+    struct sigaction act;
+    struct sigaction oact;
+    memset(&act, 0, sizeof(act));
+    act.sa_sigaction = unwind_backtrace_thread_signal_handler;
+    act.sa_flags = SA_RESTART | SA_SIGINFO | SA_ONSTACK;
+    sigemptyset(&act.sa_mask);
+
+    pthread_mutex_lock(&g_unwind_signal_mutex);
+    map_info_t* milist = acquire_my_map_info_list();
+
+    ssize_t frames = -1;
+    if (!sigaction(SIGURG, &act, &oact)) {
+        g_unwind_signal_state.map_info_list = milist;
+        g_unwind_signal_state.backtrace = backtrace;
+        g_unwind_signal_state.ignore_depth = ignore_depth;
+        g_unwind_signal_state.max_depth = max_depth;
+        g_unwind_signal_state.returned_frames = 0;
+        android_atomic_release_store(tid, &g_unwind_signal_state.tid_state);
+
+        // Signal the specific thread that we want to dump.
+        int32_t tid_state = tid;
+        if (tgkill(getpid(), tid, SIGURG)) {
+            ALOGV("Failed to send SIGURG to thread %d.", tid);
+        } else {
+            // Wait for the other thread to start dumping the stack, or time out.
+            int wait_millis = 250;
+            for (;;) {
+                tid_state = android_atomic_acquire_load(&g_unwind_signal_state.tid_state);
+                if (tid_state != tid) {
+                    break;
+                }
+                if (wait_millis--) {
+                    ALOGV("Waiting for thread %d to start dumping the stack...", tid);
+                    usleep(1000);
+                } else {
+                    ALOGV("Timed out waiting for thread %d to start dumping the stack.", tid);
+                    break;
+                }
+            }
+        }
+
+        // Try to cancel the dump if it has not started yet.
+        if (tid_state == tid) {
+            if (!android_atomic_acquire_cas(tid, STATE_CANCEL, &g_unwind_signal_state.tid_state)) {
+                ALOGV("Canceled thread %d stack dump.", tid);
+                tid_state = STATE_CANCEL;
+            } else {
+                tid_state = android_atomic_acquire_load(&g_unwind_signal_state.tid_state);
+            }
+        }
+
+        // Wait indefinitely for the dump to finish or be canceled.
+        // We cannot apply a timeout here because the other thread is accessing state that
+        // is owned by this thread, such as milist.  It should not take very
+        // long to take the dump once started.
+        while (tid_state == STATE_DUMPING) {
+            ALOGV("Waiting for thread %d to finish dumping the stack...", tid);
+            usleep(1000);
+            tid_state = android_atomic_acquire_load(&g_unwind_signal_state.tid_state);
+        }
+
+        if (tid_state == STATE_DONE) {
+            frames = g_unwind_signal_state.returned_frames;
+        }
+
+        sigaction(SIGURG, &oact, NULL);
+    }
+
+    release_my_map_info_list(milist);
+    pthread_mutex_unlock(&g_unwind_signal_mutex);
+    return frames;
+#else
+    return -1;
+#endif
+}
+
+ssize_t unwind_backtrace_ptrace(pid_t tid, const ptrace_context_t* context,
+        backtrace_frame_t* backtrace, size_t ignore_depth, size_t max_depth) {
+#ifdef CORKSCREW_HAVE_ARCH
+    return unwind_backtrace_ptrace_arch(tid, context, backtrace, ignore_depth, max_depth);
+#else
+    return -1;
+#endif
+}
+
+static void init_backtrace_symbol(backtrace_symbol_t* symbol, uintptr_t pc) {
+    symbol->relative_pc = pc;
+    symbol->relative_symbol_addr = 0;
+    symbol->map_name = NULL;
+    symbol->symbol_name = NULL;
+    symbol->demangled_name = NULL;
+}
+
+void get_backtrace_symbols(const backtrace_frame_t* backtrace, size_t frames,
+        backtrace_symbol_t* backtrace_symbols) {
+    map_info_t* milist = acquire_my_map_info_list();
+    for (size_t i = 0; i < frames; i++) {
+        const backtrace_frame_t* frame = &backtrace[i];
+        backtrace_symbol_t* symbol = &backtrace_symbols[i];
+        init_backtrace_symbol(symbol, frame->absolute_pc);
+
+        const map_info_t* mi = find_map_info(milist, frame->absolute_pc);
+        if (mi) {
+            symbol->relative_pc = frame->absolute_pc - mi->start;
+            if (mi->name[0]) {
+                symbol->map_name = strdup(mi->name);
+            }
+#if HAVE_DLADDR
+            Dl_info info;
+            if (dladdr((const void*)frame->absolute_pc, &info) && info.dli_sname) {
+                symbol->relative_symbol_addr = (uintptr_t)info.dli_saddr
+                        - (uintptr_t)info.dli_fbase;
+                symbol->symbol_name = strdup(info.dli_sname);
+                symbol->demangled_name = demangle_symbol_name(symbol->symbol_name);
+            }
+#endif
+        }
+    }
+    release_my_map_info_list(milist);
+}
+
+void get_backtrace_symbols_ptrace(const ptrace_context_t* context,
+        const backtrace_frame_t* backtrace, size_t frames,
+        backtrace_symbol_t* backtrace_symbols) {
+    for (size_t i = 0; i < frames; i++) {
+        const backtrace_frame_t* frame = &backtrace[i];
+        backtrace_symbol_t* symbol = &backtrace_symbols[i];
+        init_backtrace_symbol(symbol, frame->absolute_pc);
+
+        const map_info_t* mi;
+        const symbol_t* s;
+        find_symbol_ptrace(context, frame->absolute_pc, &mi, &s);
+        if (mi) {
+            symbol->relative_pc = frame->absolute_pc - mi->start;
+            if (mi->name[0]) {
+                symbol->map_name = strdup(mi->name);
+            }
+        }
+        if (s) {
+            symbol->relative_symbol_addr = s->start;
+            symbol->symbol_name = strdup(s->name);
+            symbol->demangled_name = demangle_symbol_name(symbol->symbol_name);
+        }
+    }
+}
+
+void free_backtrace_symbols(backtrace_symbol_t* backtrace_symbols, size_t frames) {
+    for (size_t i = 0; i < frames; i++) {
+        backtrace_symbol_t* symbol = &backtrace_symbols[i];
+        free(symbol->map_name);
+        free(symbol->symbol_name);
+        free(symbol->demangled_name);
+        init_backtrace_symbol(symbol, 0);
+    }
+}
+
+void format_backtrace_line(unsigned frameNumber, const backtrace_frame_t* frame,
+        const backtrace_symbol_t* symbol, char* buffer, size_t bufferSize) {
+    const char* mapName = symbol->map_name ? symbol->map_name : "<unknown>";
+    const char* symbolName = symbol->demangled_name ? symbol->demangled_name : symbol->symbol_name;
+    size_t fieldWidth = (bufferSize - 80) / 2;
+    if (symbolName) {
+        uint32_t pc_offset = symbol->relative_pc - symbol->relative_symbol_addr;
+        if (pc_offset) {
+            snprintf(buffer, bufferSize, "#%02d  pc %08x  %.*s (%.*s+%u)",
+                    frameNumber, symbol->relative_pc, fieldWidth, mapName,
+                    fieldWidth, symbolName, pc_offset);
+        } else {
+            snprintf(buffer, bufferSize, "#%02d  pc %08x  %.*s (%.*s)",
+                    frameNumber, symbol->relative_pc, fieldWidth, mapName,
+                    fieldWidth, symbolName);
+        }
+    } else {
+        snprintf(buffer, bufferSize, "#%02d  pc %08x  %.*s",
+                frameNumber, symbol->relative_pc, fieldWidth, mapName);
+    }
+}
diff --git a/libcorkscrew/demangle.c b/libcorkscrew/demangle.c
new file mode 100644
index 0000000..54247cb
--- /dev/null
+++ b/libcorkscrew/demangle.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include <corkscrew/demangle.h>
+
+#include <cutils/log.h>
+
+extern char *__cxa_demangle (const char *mangled, char *buf, size_t *len,
+                             int *status);
+
+char* demangle_symbol_name(const char* name) {
+    // __cxa_demangle handles NULL by returning NULL
+    return __cxa_demangle(name, 0, 0, 0);
+}
diff --git a/libcorkscrew/map_info.c b/libcorkscrew/map_info.c
new file mode 100644
index 0000000..f33378f
--- /dev/null
+++ b/libcorkscrew/map_info.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include <corkscrew/map_info.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <cutils/log.h>
+#include <sys/time.h>
+
+// 6f000000-6f01e000 rwxp 00000000 00:0c 16389419   /system/lib/libcomposer.so\n
+// 012345678901234567890123456789012345678901234567890123456789
+// 0         1         2         3         4         5
+static map_info_t* parse_maps_line(const char* line)
+{
+    unsigned long int start;
+    unsigned long int end;
+    char permissions[5];
+    int name_pos;
+    if (sscanf(line, "%lx-%lx %4s %*x %*x:%*x %*d%n", &start, &end,
+            permissions, &name_pos) != 3) {
+        return NULL;
+    }
+
+    while (isspace(line[name_pos])) {
+        name_pos += 1;
+    }
+    const char* name = line + name_pos;
+    size_t name_len = strlen(name);
+    if (name_len && name[name_len - 1] == '\n') {
+        name_len -= 1;
+    }
+
+    map_info_t* mi = calloc(1, sizeof(map_info_t) + name_len + 1);
+    if (mi) {
+        mi->start = start;
+        mi->end = end;
+        mi->is_readable = strlen(permissions) == 4 && permissions[0] == 'r';
+        mi->is_executable = strlen(permissions) == 4 && permissions[2] == 'x';
+        mi->data = NULL;
+        memcpy(mi->name, name, name_len);
+        mi->name[name_len] = '\0';
+        ALOGV("Parsed map: start=0x%08x, end=0x%08x, "
+                "is_readable=%d, is_executable=%d, name=%s",
+                mi->start, mi->end, mi->is_readable, mi->is_executable, mi->name);
+    }
+    return mi;
+}
+
+map_info_t* load_map_info_list(pid_t tid) {
+    char path[PATH_MAX];
+    char line[1024];
+    FILE* fp;
+    map_info_t* milist = NULL;
+
+    snprintf(path, PATH_MAX, "/proc/%d/maps", tid);
+    fp = fopen(path, "r");
+    if (fp) {
+        while(fgets(line, sizeof(line), fp)) {
+            map_info_t* mi = parse_maps_line(line);
+            if (mi) {
+                mi->next = milist;
+                milist = mi;
+            }
+        }
+        fclose(fp);
+    }
+    return milist;
+}
+
+void free_map_info_list(map_info_t* milist) {
+    while (milist) {
+        map_info_t* next = milist->next;
+        free(milist);
+        milist = next;
+    }
+}
+
+const map_info_t* find_map_info(const map_info_t* milist, uintptr_t addr) {
+    const map_info_t* mi = milist;
+    while (mi && !(addr >= mi->start && addr < mi->end)) {
+        mi = mi->next;
+    }
+    return mi;
+}
+
+bool is_readable_map(const map_info_t* milist, uintptr_t addr) {
+    const map_info_t* mi = find_map_info(milist, addr);
+    return mi && mi->is_readable;
+}
+
+bool is_executable_map(const map_info_t* milist, uintptr_t addr) {
+    const map_info_t* mi = find_map_info(milist, addr);
+    return mi && mi->is_executable;
+}
+
+static pthread_mutex_t g_my_map_info_list_mutex = PTHREAD_MUTEX_INITIALIZER;
+static map_info_t* g_my_map_info_list = NULL;
+
+static const int64_t MAX_CACHE_AGE = 5 * 1000 * 1000000LL;
+
+typedef struct {
+    uint32_t refs;
+    int64_t timestamp;
+} my_map_info_data_t;
+
+static int64_t now() {
+    struct timespec t;
+    t.tv_sec = t.tv_nsec = 0;
+    clock_gettime(CLOCK_MONOTONIC, &t);
+    return t.tv_sec * 1000000000LL + t.tv_nsec;
+}
+
+static void dec_ref(map_info_t* milist, my_map_info_data_t* data) {
+    if (!--data->refs) {
+        ALOGV("Freed my_map_info_list %p.", milist);
+        free(data);
+        free_map_info_list(milist);
+    }
+}
+
+map_info_t* acquire_my_map_info_list() {
+    pthread_mutex_lock(&g_my_map_info_list_mutex);
+
+    int64_t time = now();
+    if (g_my_map_info_list) {
+        my_map_info_data_t* data = (my_map_info_data_t*)g_my_map_info_list->data;
+        int64_t age = time - data->timestamp;
+        if (age >= MAX_CACHE_AGE) {
+            ALOGV("Invalidated my_map_info_list %p, age=%lld.", g_my_map_info_list, age);
+            dec_ref(g_my_map_info_list, data);
+            g_my_map_info_list = NULL;
+        } else {
+            ALOGV("Reusing my_map_info_list %p, age=%lld.", g_my_map_info_list, age);
+        }
+    }
+
+    if (!g_my_map_info_list) {
+        my_map_info_data_t* data = (my_map_info_data_t*)malloc(sizeof(my_map_info_data_t));
+        g_my_map_info_list = load_map_info_list(getpid());
+        if (g_my_map_info_list) {
+            ALOGV("Loaded my_map_info_list %p.", g_my_map_info_list);
+            g_my_map_info_list->data = data;
+            data->refs = 1;
+            data->timestamp = time;
+        } else {
+            free(data);
+        }
+    }
+
+    map_info_t* milist = g_my_map_info_list;
+    if (milist) {
+        my_map_info_data_t* data = (my_map_info_data_t*)g_my_map_info_list->data;
+        data->refs += 1;
+    }
+
+    pthread_mutex_unlock(&g_my_map_info_list_mutex);
+    return milist;
+}
+
+void release_my_map_info_list(map_info_t* milist) {
+    if (milist) {
+        pthread_mutex_lock(&g_my_map_info_list_mutex);
+
+        my_map_info_data_t* data = (my_map_info_data_t*)milist->data;
+        dec_ref(milist, data);
+
+        pthread_mutex_unlock(&g_my_map_info_list_mutex);
+    }
+}
diff --git a/libcorkscrew/ptrace-arch.h b/libcorkscrew/ptrace-arch.h
new file mode 100644
index 0000000..c02df52
--- /dev/null
+++ b/libcorkscrew/ptrace-arch.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Architecture dependent functions. */
+
+#ifndef _CORKSCREW_PTRACE_ARCH_H
+#define _CORKSCREW_PTRACE_ARCH_H
+
+#include <corkscrew/ptrace.h>
+#include <corkscrew/map_info.h>
+#include <corkscrew/symbol_table.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Custom extra data we stuff into map_info_t structures as part
+ * of our ptrace_context_t. */
+typedef struct {
+#ifdef __arm__
+    uintptr_t exidx_start;
+    size_t exidx_size;
+#endif
+    symbol_table_t* symbol_table;
+} map_info_data_t;
+
+void load_ptrace_map_info_data_arch(pid_t pid, map_info_t* mi, map_info_data_t* data);
+void free_ptrace_map_info_data_arch(map_info_t* mi, map_info_data_t* data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _CORKSCREW_PTRACE_ARCH_H
diff --git a/libcorkscrew/ptrace.c b/libcorkscrew/ptrace.c
new file mode 100644
index 0000000..cbea8ca
--- /dev/null
+++ b/libcorkscrew/ptrace.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include "ptrace-arch.h"
+#include <corkscrew/ptrace.h>
+
+#include <errno.h>
+#include <sys/ptrace.h>
+#include <cutils/log.h>
+
+static const uint32_t ELF_MAGIC = 0x464C457f; // "ELF\0177"
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+#ifndef PAGE_MASK
+#define PAGE_MASK (~(PAGE_SIZE - 1))
+#endif
+
+void init_memory(memory_t* memory, const map_info_t* map_info_list) {
+    memory->tid = -1;
+    memory->map_info_list = map_info_list;
+}
+
+void init_memory_ptrace(memory_t* memory, pid_t tid) {
+    memory->tid = tid;
+    memory->map_info_list = NULL;
+}
+
+bool try_get_word(const memory_t* memory, uintptr_t ptr, uint32_t* out_value) {
+    ALOGV("try_get_word: reading word at 0x%08x", ptr);
+    if (ptr & 3) {
+        ALOGV("try_get_word: invalid pointer 0x%08x", ptr);
+        *out_value = 0xffffffffL;
+        return false;
+    }
+    if (memory->tid < 0) {
+        if (!is_readable_map(memory->map_info_list, ptr)) {
+            ALOGV("try_get_word: pointer 0x%08x not in a readable map", ptr);
+            *out_value = 0xffffffffL;
+            return false;
+        }
+        *out_value = *(uint32_t*)ptr;
+        return true;
+    } else {
+        // ptrace() returns -1 and sets errno when the operation fails.
+        // To disambiguate -1 from a valid result, we clear errno beforehand.
+        errno = 0;
+        *out_value = ptrace(PTRACE_PEEKTEXT, memory->tid, (void*)ptr, NULL);
+        if (*out_value == 0xffffffffL && errno) {
+            ALOGV("try_get_word: invalid pointer 0x%08x reading from tid %d, "
+                    "ptrace() errno=%d", ptr, memory->tid, errno);
+            return false;
+        }
+        return true;
+    }
+}
+
+bool try_get_word_ptrace(pid_t tid, uintptr_t ptr, uint32_t* out_value) {
+    memory_t memory;
+    init_memory_ptrace(&memory, tid);
+    return try_get_word(&memory, ptr, out_value);
+}
+
+static void load_ptrace_map_info_data(pid_t pid, map_info_t* mi) {
+    if (mi->is_executable && mi->is_readable) {
+        uint32_t elf_magic;
+        if (try_get_word_ptrace(pid, mi->start, &elf_magic) && elf_magic == ELF_MAGIC) {
+            map_info_data_t* data = (map_info_data_t*)calloc(1, sizeof(map_info_data_t));
+            if (data) {
+                mi->data = data;
+                if (mi->name[0]) {
+                    data->symbol_table = load_symbol_table(mi->name);
+                }
+#ifdef CORKSCREW_HAVE_ARCH
+                load_ptrace_map_info_data_arch(pid, mi, data);
+#endif
+            }
+        }
+    }
+}
+
+ptrace_context_t* load_ptrace_context(pid_t pid) {
+    ptrace_context_t* context =
+            (ptrace_context_t*)calloc(1, sizeof(ptrace_context_t));
+    if (context) {
+        context->map_info_list = load_map_info_list(pid);
+        for (map_info_t* mi = context->map_info_list; mi; mi = mi->next) {
+            load_ptrace_map_info_data(pid, mi);
+        }
+    }
+    return context;
+}
+
+static void free_ptrace_map_info_data(map_info_t* mi) {
+    map_info_data_t* data = (map_info_data_t*)mi->data;
+    if (data) {
+        if (data->symbol_table) {
+            free_symbol_table(data->symbol_table);
+        }
+#ifdef CORKSCREW_HAVE_ARCH
+        free_ptrace_map_info_data_arch(mi, data);
+#endif
+        free(data);
+        mi->data = NULL;
+    }
+}
+
+void free_ptrace_context(ptrace_context_t* context) {
+    for (map_info_t* mi = context->map_info_list; mi; mi = mi->next) {
+        free_ptrace_map_info_data(mi);
+    }
+    free_map_info_list(context->map_info_list);
+}
+
+void find_symbol_ptrace(const ptrace_context_t* context,
+        uintptr_t addr, const map_info_t** out_map_info, const symbol_t** out_symbol) {
+    const map_info_t* mi = find_map_info(context->map_info_list, addr);
+    const symbol_t* symbol = NULL;
+    if (mi) {
+        const map_info_data_t* data = (const map_info_data_t*)mi->data;
+        if (data && data->symbol_table) {
+            symbol = find_symbol(data->symbol_table, addr - mi->start);
+        }
+    }
+    *out_map_info = mi;
+    *out_symbol = symbol;
+}
diff --git a/libcorkscrew/symbol_table.c b/libcorkscrew/symbol_table.c
new file mode 100644
index 0000000..1b97180
--- /dev/null
+++ b/libcorkscrew/symbol_table.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Corkscrew"
+//#define LOG_NDEBUG 0
+
+#include <corkscrew/symbol_table.h>
+
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/exec_elf.h>
+#include <cutils/log.h>
+
+// Compare function for qsort
+static int qcompar(const void *a, const void *b) {
+    const symbol_t* asym = (const symbol_t*)a;
+    const symbol_t* bsym = (const symbol_t*)b;
+    if (asym->start > bsym->start) return 1;
+    if (asym->start < bsym->start) return -1;
+    return 0;
+}
+
+// Compare function for bsearch
+static int bcompar(const void *key, const void *element) {
+    uintptr_t addr = *(const uintptr_t*)key;
+    const symbol_t* symbol = (const symbol_t*)element;
+    if (addr < symbol->start) return -1;
+    if (addr >= symbol->end) return 1;
+    return 0;
+}
+
+symbol_table_t* load_symbol_table(const char *filename) {
+    symbol_table_t* table = NULL;
+    ALOGV("Loading symbol table from '%s'.", filename);
+
+    int fd = open(filename, O_RDONLY);
+    if (fd < 0) {
+        goto out;
+    }
+
+    struct stat sb;
+    if (fstat(fd, &sb)) {
+        goto out_close;
+    }
+
+    size_t length = sb.st_size;
+    char* base = mmap(NULL, length, PROT_READ, MAP_PRIVATE, fd, 0);
+    if (base == MAP_FAILED) {
+        goto out_close;
+    }
+
+    // Parse the file header
+    Elf32_Ehdr *hdr = (Elf32_Ehdr*)base;
+    if (!IS_ELF(*hdr)) {
+        goto out_close;
+    }
+    Elf32_Shdr *shdr = (Elf32_Shdr*)(base + hdr->e_shoff);
+
+    // Search for the dynamic symbols section
+    int sym_idx = -1;
+    int dynsym_idx = -1;
+    for (Elf32_Half i = 0; i < hdr->e_shnum; i++) {
+        if (shdr[i].sh_type == SHT_SYMTAB) {
+            sym_idx = i;
+        }
+        if (shdr[i].sh_type == SHT_DYNSYM) {
+            dynsym_idx = i;
+        }
+    }
+    if (dynsym_idx == -1 && sym_idx == -1) {
+        goto out_unmap;
+    }
+
+    table = malloc(sizeof(symbol_table_t));
+    if(!table) {
+        goto out_unmap;
+    }
+    table->num_symbols = 0;
+
+    Elf32_Sym *dynsyms = NULL;
+    int dynnumsyms = 0;
+    char *dynstr = NULL;
+    if (dynsym_idx != -1) {
+        dynsyms = (Elf32_Sym*)(base + shdr[dynsym_idx].sh_offset);
+        dynnumsyms = shdr[dynsym_idx].sh_size / shdr[dynsym_idx].sh_entsize;
+        int dynstr_idx = shdr[dynsym_idx].sh_link;
+        dynstr = base + shdr[dynstr_idx].sh_offset;
+    }
+
+    Elf32_Sym *syms = NULL;
+    int numsyms = 0;
+    char *str = NULL;
+    if (sym_idx != -1) {
+        syms = (Elf32_Sym*)(base + shdr[sym_idx].sh_offset);
+        numsyms = shdr[sym_idx].sh_size / shdr[sym_idx].sh_entsize;
+        int str_idx = shdr[sym_idx].sh_link;
+        str = base + shdr[str_idx].sh_offset;
+    }
+
+    int dynsymbol_count = 0;
+    if (dynsym_idx != -1) {
+        // Iterate through the dynamic symbol table, and count how many symbols
+        // are actually defined
+        for (int i = 0; i < dynnumsyms; i++) {
+            if (dynsyms[i].st_shndx != SHN_UNDEF) {
+                dynsymbol_count++;
+            }
+        }
+    }
+
+    size_t symbol_count = 0;
+    if (sym_idx != -1) {
+        // Iterate through the symbol table, and count how many symbols
+        // are actually defined
+        for (int i = 0; i < numsyms; i++) {
+            if (syms[i].st_shndx != SHN_UNDEF
+                    && str[syms[i].st_name]
+                    && syms[i].st_value
+                    && syms[i].st_size) {
+                symbol_count++;
+            }
+        }
+    }
+
+    // Now, create an entry in our symbol table structure for each symbol...
+    table->num_symbols += symbol_count + dynsymbol_count;
+    table->symbols = malloc(table->num_symbols * sizeof(symbol_t));
+    if (!table->symbols) {
+        free(table);
+        table = NULL;
+        goto out_unmap;
+    }
+
+    size_t symbol_index = 0;
+    if (dynsym_idx != -1) {
+        // ...and populate them
+        for (int i = 0; i < dynnumsyms; i++) {
+            if (dynsyms[i].st_shndx != SHN_UNDEF) {
+                table->symbols[symbol_index].name = strdup(dynstr + dynsyms[i].st_name);
+                table->symbols[symbol_index].start = dynsyms[i].st_value;
+                table->symbols[symbol_index].end = dynsyms[i].st_value + dynsyms[i].st_size;
+                ALOGV("  [%d] '%s' 0x%08x-0x%08x (DYNAMIC)",
+                        symbol_index, table->symbols[symbol_index].name,
+                        table->symbols[symbol_index].start, table->symbols[symbol_index].end);
+                symbol_index += 1;
+            }
+        }
+    }
+
+    if (sym_idx != -1) {
+        // ...and populate them
+        for (int i = 0; i < numsyms; i++) {
+            if (syms[i].st_shndx != SHN_UNDEF
+                    && str[syms[i].st_name]
+                    && syms[i].st_value
+                    && syms[i].st_size) {
+                table->symbols[symbol_index].name = strdup(str + syms[i].st_name);
+                table->symbols[symbol_index].start = syms[i].st_value;
+                table->symbols[symbol_index].end = syms[i].st_value + syms[i].st_size;
+                ALOGV("  [%d] '%s' 0x%08x-0x%08x",
+                        symbol_index, table->symbols[symbol_index].name,
+                        table->symbols[symbol_index].start, table->symbols[symbol_index].end);
+                symbol_index += 1;
+            }
+        }
+    }
+
+    // Sort the symbol table entries, so they can be bsearched later
+    qsort(table->symbols, table->num_symbols, sizeof(symbol_t), qcompar);
+
+out_unmap:
+    munmap(base, length);
+
+out_close:
+    close(fd);
+
+out:
+    return table;
+}
+
+void free_symbol_table(symbol_table_t* table) {
+    if (table) {
+        for (size_t i = 0; i < table->num_symbols; i++) {
+            free(table->symbols[i].name);
+        }
+        free(table->symbols);
+        free(table);
+    }
+}
+
+const symbol_t* find_symbol(const symbol_table_t* table, uintptr_t addr) {
+    if (!table) return NULL;
+    return (const symbol_t*)bsearch(&addr, table->symbols, table->num_symbols,
+            sizeof(symbol_t), bcompar);
+}
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index b83ce68..5c227b6 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -46,6 +46,7 @@
 	record_stream.c \
 	process_name.c \
 	properties.c \
+	qsort_r_compat.c \
 	threads.c \
 	sched_policy.c \
 	iosched_policy.c \
@@ -107,9 +108,23 @@
 
 # Shared and static library for target
 # ========================================================
+
+# This is needed in LOCAL_C_INCLUDES to access the C library's private
+# header named <bionic_time.h>
+#
+libcutils_c_includes := bionic/libc/private
+
 include $(CLEAR_VARS)
 LOCAL_MODULE := libcutils
-LOCAL_SRC_FILES := $(commonSources) ashmem-dev.c mq.c android_reboot.c partition_utils.c uevent.c qtaguid.c klog.c
+LOCAL_SRC_FILES := $(commonSources) \
+        android_reboot.c \
+        ashmem-dev.c \
+        debugger.c \
+        klog.c \
+        mq.c \
+        partition_utils.c \
+        qtaguid.c \
+        uevent.c
 
 ifeq ($(TARGET_ARCH),arm)
 LOCAL_SRC_FILES += arch-arm/memset32.S
@@ -126,7 +141,7 @@
 endif # !sh
 endif # !arm
 
-LOCAL_C_INCLUDES := $(KERNEL_HEADERS)
+LOCAL_C_INCLUDES := $(libcutils_c_includes) $(KERNEL_HEADERS)
 LOCAL_STATIC_LIBRARIES := liblog
 LOCAL_CFLAGS += $(targetSmpFlag)
 include $(BUILD_STATIC_LIBRARY)
@@ -136,6 +151,7 @@
 LOCAL_WHOLE_STATIC_LIBRARIES := libcutils
 LOCAL_SHARED_LIBRARIES := liblog
 LOCAL_CFLAGS += $(targetSmpFlag)
+LOCAL_C_INCLUDES := $(libcutils_c_includes)
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
diff --git a/libcutils/debugger.c b/libcutils/debugger.c
new file mode 100644
index 0000000..9425006
--- /dev/null
+++ b/libcutils/debugger.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <cutils/debugger.h>
+#include <cutils/sockets.h>
+
+int dump_tombstone(pid_t tid, char* pathbuf, size_t pathlen) {
+    int s = socket_local_client(DEBUGGER_SOCKET_NAME,
+            ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
+    if (s < 0) {
+        return -1;
+    }
+
+    debugger_msg_t msg;
+    msg.tid = tid;
+    msg.action = DEBUGGER_ACTION_DUMP_TOMBSTONE;
+
+    int result = 0;
+    if (TEMP_FAILURE_RETRY(write(s, &msg, sizeof(msg))) != sizeof(msg)) {
+        result = -1;
+    } else {
+        char ack;
+        if (TEMP_FAILURE_RETRY(read(s, &ack, 1)) != 1) {
+            result = -1;
+        } else {
+            if (pathbuf && pathlen) {
+                ssize_t n = TEMP_FAILURE_RETRY(read(s, pathbuf, pathlen - 1));
+                if (n <= 0) {
+                    result = -1;
+                } else {
+                    pathbuf[n] = '\0';
+                }
+            }
+        }
+    }
+    TEMP_FAILURE_RETRY(close(s));
+    return result;
+}
+
+int dump_backtrace_to_file(pid_t tid, int fd) {
+    int s = socket_local_client(DEBUGGER_SOCKET_NAME,
+            ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
+    if (s < 0) {
+        return -1;
+    }
+
+    debugger_msg_t msg;
+    msg.tid = tid;
+    msg.action = DEBUGGER_ACTION_DUMP_BACKTRACE;
+
+    int result = 0;
+    if (TEMP_FAILURE_RETRY(write(s, &msg, sizeof(msg))) != sizeof(msg)) {
+        result = -1;
+    } else {
+        char ack;
+        if (TEMP_FAILURE_RETRY(read(s, &ack, 1)) != 1) {
+            result = -1;
+        } else {
+            char buffer[4096];
+            ssize_t n;
+            while ((n = TEMP_FAILURE_RETRY(read(s, buffer, sizeof(buffer)))) > 0) {
+                if (TEMP_FAILURE_RETRY(write(fd, buffer, n)) != n) {
+                    result = -1;
+                    break;
+                }
+            }
+        }
+    }
+    TEMP_FAILURE_RETRY(close(s));
+    return result;
+}
diff --git a/libcutils/process_name.c b/libcutils/process_name.c
index b235429..bda9d08 100644
--- a/libcutils/process_name.c
+++ b/libcutils/process_name.c
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <stdlib.h>
 #include <string.h>
 #include <cutils/process_name.h>
 #include <cutils/properties.h>
diff --git a/libcutils/qsort_r_compat.c b/libcutils/qsort_r_compat.c
new file mode 100644
index 0000000..8971cb5
--- /dev/null
+++ b/libcutils/qsort_r_compat.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <cutils/qsort_r_compat.h>
+
+#if HAVE_BSD_QSORT_R
+
+/*
+ * BSD qsort_r parameter order is as we have defined here.
+ */
+
+void qsort_r_compat(void* base, size_t nel, size_t width, void* thunk,
+        int (*compar)(void*, const void* , const void*)) {
+    qsort_r(base, nel, width, thunk, compar);
+}
+
+#elif HAVE_GNU_QSORT_R
+
+/*
+ * GNU qsort_r parameter order places the thunk parameter last.
+ */
+
+struct compar_data {
+    void* thunk;
+    int (*compar)(void*, const void* , const void*);
+};
+
+static int compar_wrapper(const void* a, const void* b, void* data) {
+    struct compar_data* compar_data = (struct compar_data*)data;
+    return compar_data->compar(compar_data->thunk, a, b);
+}
+
+void qsort_r_compat(void* base, size_t nel, size_t width, void* thunk,
+        int (*compar)(void*, const void* , const void*)) {
+    struct compar_data compar_data;
+    compar_data.thunk = thunk;
+    compar_data.compar = compar;
+    qsort_r(base, nel, width, compar_wrapper, &compar_data);
+}
+
+#else
+
+/*
+ * Emulate qsort_r using thread local storage to access the thunk data.
+ */
+
+#include <cutils/threads.h>
+
+static thread_store_t compar_data_key = THREAD_STORE_INITIALIZER;
+
+struct compar_data {
+    void* thunk;
+    int (*compar)(void*, const void* , const void*);
+};
+
+static int compar_wrapper(const void* a, const void* b) {
+    struct compar_data* compar_data = (struct compar_data*)thread_store_get(&compar_data_key);
+    return compar_data->compar(compar_data->thunk, a, b);
+}
+
+void qsort_r_compat(void* base, size_t nel, size_t width, void* thunk,
+        int (*compar)(void*, const void* , const void*)) {
+    struct compar_data compar_data;
+    compar_data.thunk = thunk;
+    compar_data.compar = compar;
+    thread_store_set(&compar_data_key, &compar_data, NULL);
+    qsort(base, nel, width, compar_wrapper);
+}
+
+#endif
diff --git a/libcutils/qtaguid.c b/libcutils/qtaguid.c
index 1c57774..5bb8176 100644
--- a/libcutils/qtaguid.c
+++ b/libcutils/qtaguid.c
@@ -99,9 +99,7 @@
 int qtaguid_tagSocket(int sockfd, int tag, uid_t uid) {
     char lineBuf[CTRL_MAX_INPUT_LEN];
     int res;
-    /* Doing java-land a favor, enforcing "long" */
-    uint64_t kTag = ((uint64_t)tag << 32) & ~(1LLU<<63);
-
+    uint64_t kTag = ((uint64_t)tag << 32);
 
     pthread_once(&resTrackInitDone, qtaguid_resTrack);
 
diff --git a/libcutils/sched_policy.c b/libcutils/sched_policy.c
index f9c111e..d20d217 100644
--- a/libcutils/sched_policy.c
+++ b/libcutils/sched_policy.c
@@ -16,24 +16,31 @@
 ** limitations under the License.
 */
 
+#define LOG_TAG "SchedPolicy"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <cutils/sched_policy.h>
+#include <cutils/log.h>
 
-#define LOG_TAG "SchedPolicy"
-#include "cutils/log.h"
+/* Re-map SP_DEFAULT to the system default policy, and leave other values unchanged.
+ * Call this any place a SchedPolicy is used as an input parameter.
+ * Returns the possibly re-mapped policy.
+ */
+static inline SchedPolicy _policy(SchedPolicy p)
+{
+   return p == SP_DEFAULT ? SP_SYSTEM_DEFAULT : p;
+}
 
-#ifdef HAVE_SCHED_H
-#ifdef HAVE_PTHREADS
+#if defined(HAVE_ANDROID_OS) && defined(HAVE_SCHED_H) && defined(HAVE_PTHREADS)
 
 #include <sched.h>
 #include <pthread.h>
 
-#include <cutils/sched_policy.h>
-
 #ifndef SCHED_NORMAL
   #define SCHED_NORMAL 0
 #endif
@@ -44,28 +51,45 @@
 
 #define POLICY_DEBUG 0
 
+#define CAN_SET_SP_SYSTEM 0 // non-zero means to implement set_sched_policy(tid, SP_SYSTEM)
+
 static pthread_once_t the_once = PTHREAD_ONCE_INIT;
 
 static int __sys_supports_schedgroups = -1;
 
 // File descriptors open to /dev/cpuctl/../tasks, setup by initialize, or -1 on error.
-static int normal_cgroup_fd = -1;
 static int bg_cgroup_fd = -1;
+static int fg_cgroup_fd = -1;
+#if CAN_SET_SP_SYSTEM
+static int system_cgroup_fd = -1;
+#endif
 
 /* Add tid to the scheduling group defined by the policy */
 static int add_tid_to_cgroup(int tid, SchedPolicy policy)
 {
     int fd;
 
-    if (policy == SP_BACKGROUND) {
+    switch (policy) {
+    case SP_BACKGROUND:
         fd = bg_cgroup_fd;
-    } else {
-        fd = normal_cgroup_fd;
+        break;
+    case SP_FOREGROUND:
+    case SP_AUDIO_APP:
+    case SP_AUDIO_SYS:
+        fd = fg_cgroup_fd;
+        break;
+#if CAN_SET_SP_SYSTEM
+    case SP_SYSTEM:
+        fd = system_cgroup_fd;
+        break;
+#endif
+    default:
+        fd = -1;
+        break;
     }
 
     if (fd < 0) {
-        SLOGE("add_tid_to_cgroup failed; background=%d\n",
-              policy == SP_BACKGROUND ? 1 : 0);
+        SLOGE("add_tid_to_cgroup failed; policy=%d\n", policy);
         return -1;
     }
 
@@ -86,8 +110,8 @@
          */
         if (errno == ESRCH)
                 return 0;
-        SLOGW("add_tid_to_cgroup failed to write '%s' (%s); background=%d\n",
-              ptr, strerror(errno), policy == SP_BACKGROUND ? 1 : 0);
+        SLOGW("add_tid_to_cgroup failed to write '%s' (%s); policy=%d\n",
+              ptr, strerror(errno), policy);
         return -1;
     }
 
@@ -99,14 +123,22 @@
     if (!access("/dev/cpuctl/tasks", F_OK)) {
         __sys_supports_schedgroups = 1;
 
+#if CAN_SET_SP_SYSTEM
         filename = "/dev/cpuctl/tasks";
-        normal_cgroup_fd = open(filename, O_WRONLY);
-        if (normal_cgroup_fd < 0) {
+        system_cgroup_fd = open(filename, O_WRONLY | O_CLOEXEC);
+        if (system_cgroup_fd < 0) {
+            SLOGV("open of %s failed: %s\n", filename, strerror(errno));
+        }
+#endif
+
+        filename = "/dev/cpuctl/apps/tasks";
+        fg_cgroup_fd = open(filename, O_WRONLY | O_CLOEXEC);
+        if (fg_cgroup_fd < 0) {
             SLOGE("open of %s failed: %s\n", filename, strerror(errno));
         }
 
-        filename = "/dev/cpuctl/bg_non_interactive/tasks";
-        bg_cgroup_fd = open(filename, O_WRONLY);
+        filename = "/dev/cpuctl/apps/bg_non_interactive/tasks";
+        bg_cgroup_fd = open(filename, O_WRONLY | O_CLOEXEC);
         if (bg_cgroup_fd < 0) {
             SLOGE("open of %s failed: %s\n", filename, strerror(errno));
         }
@@ -189,6 +221,11 @@
 
 int get_sched_policy(int tid, SchedPolicy *policy)
 {
+#ifdef HAVE_GETTID
+    if (tid == 0) {
+        tid = gettid();
+    }
+#endif
     pthread_once(&the_once, __initialize);
 
     if (__sys_supports_schedgroups) {
@@ -196,9 +233,11 @@
         if (getSchedulerGroup(tid, grpBuf, sizeof(grpBuf)) < 0)
             return -1;
         if (grpBuf[0] == '\0') {
-            *policy = SP_FOREGROUND;
-        } else if (!strcmp(grpBuf, "bg_non_interactive")) {
+            *policy = SP_SYSTEM;
+        } else if (!strcmp(grpBuf, "apps/bg_non_interactive")) {
             *policy = SP_BACKGROUND;
+        } else if (!strcmp(grpBuf, "apps")) {
+            *policy = SP_FOREGROUND;
         } else {
             errno = ERANGE;
             return -1;
@@ -221,6 +260,12 @@
 
 int set_sched_policy(int tid, SchedPolicy policy)
 {
+#ifdef HAVE_GETTID
+    if (tid == 0) {
+        tid = gettid();
+    }
+#endif
+    policy = _policy(policy);
     pthread_once(&the_once, __initialize);
 
 #if POLICY_DEBUG
@@ -246,12 +291,21 @@
 
         strncpy(thread_name, p, (q-p));
     }
-    if (policy == SP_BACKGROUND) {
+    switch (policy) {
+    case SP_BACKGROUND:
         SLOGD("vvv tid %d (%s)", tid, thread_name);
-    } else if (policy == SP_FOREGROUND) {
+        break;
+    case SP_FOREGROUND:
+    case SP_AUDIO_APP:
+    case SP_AUDIO_SYS:
         SLOGD("^^^ tid %d (%s)", tid, thread_name);
-    } else {
+        break;
+    case SP_SYSTEM:
+        SLOGD("/// tid %d (%s)", tid, thread_name);
+        break;
+    default:
         SLOGD("??? tid %d (%s)", tid, thread_name);
+        break;
     }
 #endif
 
@@ -273,5 +327,36 @@
     return 0;
 }
 
-#endif /* HAVE_PTHREADS */
-#endif /* HAVE_SCHED_H */
+#else
+
+/* Stubs for non-Android targets. */
+
+int set_sched_policy(int tid, SchedPolicy policy)
+{
+    return 0;
+}
+
+int get_sched_policy(int tid, SchedPolicy *policy)
+{
+    *policy = SP_SYSTEM_DEFAULT;
+    return 0;
+}
+
+#endif
+
+const char *get_sched_policy_name(SchedPolicy policy)
+{
+    policy = _policy(policy);
+    static const char * const strings[SP_CNT] = {
+       [SP_BACKGROUND] = "bg",
+       [SP_FOREGROUND] = "fg",
+       [SP_SYSTEM]     = "  ",
+       [SP_AUDIO_APP]  = "aa",
+       [SP_AUDIO_SYS]  = "as",
+    };
+    if ((policy < SP_CNT) && (strings[policy] != NULL))
+        return strings[policy];
+    else
+        return "error";
+}
+
diff --git a/libcutils/str_parms.c b/libcutils/str_parms.c
index 14fecec..9e1d2dc 100644
--- a/libcutils/str_parms.c
+++ b/libcutils/str_parms.c
@@ -70,19 +70,57 @@
     return NULL;
 }
 
+struct remove_ctxt {
+    struct str_parms *str_parms;
+    const char *key;
+};
+
 static bool remove_pair(void *key, void *value, void *context)
 {
-    struct str_parms *str_parms = context;
+    struct remove_ctxt *ctxt = context;
+    bool should_continue;
 
-    hashmapRemove(str_parms->map, key);
+    /*
+     * - if key is not supplied, then we are removing all entries,
+     *   so remove key and continue (i.e. return true)
+     * - if key is supplied and matches, then remove it and don't
+     *   continue (return false). Otherwise, return true and keep searching
+     *   for key.
+     *
+     */
+    if (!ctxt->key) {
+        should_continue = true;
+        goto do_remove;
+    } else if (!strcmp(ctxt->key, key)) {
+        should_continue = false;
+        goto do_remove;
+    }
+
+    return true;
+
+do_remove:
+    hashmapRemove(ctxt->str_parms->map, key);
     free(key);
     free(value);
-    return true;
+    return should_continue;
+}
+
+void str_parms_del(struct str_parms *str_parms, const char *key)
+{
+    struct remove_ctxt ctxt = {
+        .str_parms = str_parms,
+        .key = key,
+    };
+    hashmapForEach(str_parms->map, remove_pair, &ctxt);
 }
 
 void str_parms_destroy(struct str_parms *str_parms)
 {
-    hashmapForEach(str_parms->map, remove_pair, str_parms);
+    struct remove_ctxt ctxt = {
+        .str_parms = str_parms,
+    };
+
+    hashmapForEach(str_parms->map, remove_pair, &ctxt);
     hashmapFree(str_parms->map);
     free(str_parms);
 }
@@ -128,8 +166,10 @@
 
         /* if we replaced a value, free it */
         old_val = hashmapPut(str_parms->map, key, value);
-        if (old_val)
+        if (old_val) {
             free(old_val);
+            free(key);
+        }
 
         items++;
 next_pair:
@@ -149,24 +189,23 @@
     return NULL;
 }
 
-void str_parms_del(struct str_parms *str_parms, const char *key)
-{
-    hashmapRemove(str_parms->map, (void *)key);
-}
-
 int str_parms_add_str(struct str_parms *str_parms, const char *key,
                       const char *value)
 {
     void *old_val;
-    char *tmp;
+    void *tmp_key;
+    void *tmp_val;
 
-    tmp = strdup(value);
-    old_val = hashmapPut(str_parms->map, (void *)key, tmp);
+    tmp_key = strdup(key);
+    tmp_val = strdup(value);
+    old_val = hashmapPut(str_parms->map, tmp_key, tmp_val);
 
     if (old_val) {
         free(old_val);
+        free(tmp_key);
     } else if (errno == ENOMEM) {
-        free(tmp);
+        free(tmp_key);
+        free(tmp_val);
         return -ENOMEM;
     }
     return 0;
@@ -298,6 +337,9 @@
     int ret;
 
     str_parms = str_parms_create_str(str);
+    str_parms_add_str(str_parms, "dude", "woah");
+    str_parms_add_str(str_parms, "dude", "woah");
+    str_parms_del(str_parms, "dude");
     str_parms_dump(str_parms);
     out_str = str_parms_to_str(str_parms);
     str_parms_destroy(str_parms);
@@ -323,6 +365,7 @@
     test_str_parms_str("foo=bar;baz=");
     test_str_parms_str("foo=bar;baz=bat");
     test_str_parms_str("foo=bar;baz=bat;");
+    test_str_parms_str("foo=bar;baz=bat;foo=bar");
 
     return 0;
 }
diff --git a/libcutils/tzstrftime.c b/libcutils/tzstrftime.c
index e37d79a..e4f54df 100644
--- a/libcutils/tzstrftime.c
+++ b/libcutils/tzstrftime.c
@@ -8,6 +8,7 @@
 #endif /* !defined NOID */
 #endif /* !defined lint */
 
+#include <stdio.h>
 #include <time.h>
 #include <tzfile.h>
 #include <limits.h>
diff --git a/libcutils/uevent.c b/libcutils/uevent.c
index 4add29c..97a81e3 100644
--- a/libcutils/uevent.c
+++ b/libcutils/uevent.c
@@ -29,7 +29,24 @@
 /**
  * Like recv(), but checks that messages actually originate from the kernel.
  */
-ssize_t uevent_kernel_multicast_recv(int socket, void *buffer, size_t length) {
+ssize_t uevent_kernel_multicast_recv(int socket, void *buffer, size_t length)
+{
+    uid_t user = -1;
+    return uevent_kernel_multicast_uid_recv(socket, buffer, length, &user);
+}
+
+/**
+ * Like the above, but passes a uid_t in by reference. In the event that this
+ * fails due to a bad uid check, the uid_t will be set to the uid of the
+ * socket's peer.
+ *
+ * If this method rejects a netlink message from outside the kernel, it
+ * returns -1, sets errno to EIO, and sets "user" to the UID associated with the
+ * message. If the peer UID cannot be determined, "user" is set to -1."
+ */
+ssize_t uevent_kernel_multicast_uid_recv(int socket, void *buffer,
+                                         size_t length, uid_t *user)
+{
     struct iovec iov = { buffer, length };
     struct sockaddr_nl addr;
     char control[CMSG_SPACE(sizeof(struct ucred))];
@@ -43,16 +60,12 @@
         0,
     };
 
+    *user = -1;
     ssize_t n = recvmsg(socket, &hdr, 0);
     if (n <= 0) {
         return n;
     }
 
-    if (addr.nl_groups == 0 || addr.nl_pid != 0) {
-        /* ignoring non-kernel or unicast netlink message */
-        goto out;
-    }
-
     struct cmsghdr *cmsg = CMSG_FIRSTHDR(&hdr);
     if (cmsg == NULL || cmsg->cmsg_type != SCM_CREDENTIALS) {
         /* ignoring netlink message with no sender credentials */
@@ -60,11 +73,17 @@
     }
 
     struct ucred *cred = (struct ucred *)CMSG_DATA(cmsg);
+    *user = cred->uid;
     if (cred->uid != 0) {
         /* ignoring netlink message from non-root user */
         goto out;
     }
 
+    if (addr.nl_groups == 0 || addr.nl_pid != 0) {
+        /* ignoring non-kernel or unicast netlink message */
+        goto out;
+    }
+
     return n;
 
 out:
diff --git a/libdiskconfig/Android.mk b/libdiskconfig/Android.mk
index 9decbb9..b5d83fa 100644
--- a/libdiskconfig/Android.mk
+++ b/libdiskconfig/Android.mk
@@ -19,7 +19,6 @@
 LOCAL_SRC_FILES := $(commonSources)
 LOCAL_MODULE := libdiskconfig_host
 LOCAL_MODULE_TAGS := optional
-LOCAL_SYSTEM_SHARED_LIBRARIES := libcutils
 LOCAL_CFLAGS := -O2 -g -W -Wall -Werror -D_LARGEFILE64_SOURCE
 include $(BUILD_HOST_STATIC_LIBRARY)
 endif # HOST_OS == linux
diff --git a/libdiskconfig/config_mbr.c b/libdiskconfig/config_mbr.c
index 703484c..b89d382 100644
--- a/libdiskconfig/config_mbr.c
+++ b/libdiskconfig/config_mbr.c
@@ -152,7 +152,7 @@
 
     /* we are going to write the ebr at the current LBA, and then bump the
      * lba counter since that is where the logical data partition will start */
-    item->offset = (*lba) * dinfo->sect_size;
+    item->offset = ((loff_t)(*lba)) * dinfo->sect_size;
     (*lba)++;
 
     ebr = (struct pc_boot_record *) &item->data;
diff --git a/libion/Android.mk b/libion/Android.mk
new file mode 100644
index 0000000..5121fee
--- /dev/null
+++ b/libion/Android.mk
@@ -0,0 +1,15 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := ion.c
+LOCAL_MODULE := libion
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := liblog
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := ion.c ion_test.c
+LOCAL_MODULE := iontest
+LOCAL_MODULE_TAGS := optional tests
+LOCAL_SHARED_LIBRARIES := liblog
+include $(BUILD_EXECUTABLE)
diff --git a/libion/ion.c b/libion/ion.c
new file mode 100644
index 0000000..dbeac23
--- /dev/null
+++ b/libion/ion.c
@@ -0,0 +1,134 @@
+/*
+ *  ion.c
+ *
+ * Memory Allocator functions for ion
+ *
+ *   Copyright 2011 Google, Inc
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+#define LOG_TAG "ion"
+
+#include <cutils/log.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <linux/ion.h>
+#include <ion/ion.h>
+
+int ion_open()
+{
+        int fd = open("/dev/ion", O_RDWR);
+        if (fd < 0)
+                ALOGE("open /dev/ion failed!\n");
+        return fd;
+}
+
+int ion_close(int fd)
+{
+        return close(fd);
+}
+
+static int ion_ioctl(int fd, int req, void *arg)
+{
+        int ret = ioctl(fd, req, arg);
+        if (ret < 0) {
+                ALOGE("ioctl %x failed with code %d: %s\n", req,
+                       ret, strerror(errno));
+                return -errno;
+        }
+        return ret;
+}
+
+int ion_alloc(int fd, size_t len, size_t align, unsigned int flags,
+              struct ion_handle **handle)
+{
+        int ret;
+        struct ion_allocation_data data = {
+                .len = len,
+                .align = align,
+                .flags = flags,
+        };
+
+        ret = ion_ioctl(fd, ION_IOC_ALLOC, &data);
+        if (ret < 0)
+                return ret;
+        *handle = data.handle;
+        return ret;
+}
+
+int ion_free(int fd, struct ion_handle *handle)
+{
+        struct ion_handle_data data = {
+                .handle = handle,
+        };
+        return ion_ioctl(fd, ION_IOC_FREE, &data);
+}
+
+int ion_map(int fd, struct ion_handle *handle, size_t length, int prot,
+            int flags, off_t offset, unsigned char **ptr, int *map_fd)
+{
+        struct ion_fd_data data = {
+                .handle = handle,
+        };
+
+        int ret = ion_ioctl(fd, ION_IOC_MAP, &data);
+        if (ret < 0)
+                return ret;
+        *map_fd = data.fd;
+        if (*map_fd < 0) {
+                ALOGE("map ioctl returned negative fd\n");
+                return -EINVAL;
+        }
+        *ptr = mmap(NULL, length, prot, flags, *map_fd, offset);
+        if (*ptr == MAP_FAILED) {
+                ALOGE("mmap failed: %s\n", strerror(errno));
+                return -errno;
+        }
+        return ret;
+}
+
+int ion_share(int fd, struct ion_handle *handle, int *share_fd)
+{
+        int map_fd;
+        struct ion_fd_data data = {
+                .handle = handle,
+        };
+
+        int ret = ion_ioctl(fd, ION_IOC_SHARE, &data);
+        if (ret < 0)
+                return ret;
+        *share_fd = data.fd;
+        if (*share_fd < 0) {
+                ALOGE("share ioctl returned negative fd\n");
+                return -EINVAL;
+        }
+        return ret;
+}
+
+int ion_import(int fd, int share_fd, struct ion_handle **handle)
+{
+        struct ion_fd_data data = {
+                .fd = share_fd,
+        };
+
+        int ret = ion_ioctl(fd, ION_IOC_IMPORT, &data);
+        if (ret < 0)
+                return ret;
+        *handle = data.handle;
+        return ret;
+}
diff --git a/libion/ion_test.c b/libion/ion_test.c
new file mode 100644
index 0000000..3f2d7cc
--- /dev/null
+++ b/libion/ion_test.c
@@ -0,0 +1,282 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <ion/ion.h>
+#include <linux/ion.h>
+#include <linux/omap_ion.h>
+
+size_t len = 1024*1024, align = 0;
+int prot = PROT_READ | PROT_WRITE;
+int map_flags = MAP_SHARED;
+int alloc_flags = 0;
+int test = -1;
+size_t width = 1024*1024, height = 1024*1024;
+size_t stride;
+
+int _ion_alloc_test(int *fd, struct ion_handle **handle)
+{
+	int ret;
+
+	*fd = ion_open();
+	if (*fd < 0)
+		return *fd;
+
+	ret = ion_alloc(*fd, len, align, alloc_flags, handle);
+
+	if (ret)
+		printf("%s failed: %s\n", __func__, strerror(ret));
+	return ret;
+}
+
+void ion_alloc_test()
+{
+	int fd, ret;
+	struct ion_handle *handle;
+
+	if(_ion_alloc_test(&fd, &handle))
+			return;
+
+	ret = ion_free(fd, handle);
+	if (ret) {
+		printf("%s failed: %s %p\n", __func__, strerror(ret), handle);
+		return;
+	}
+	ion_close(fd);
+	printf("ion alloc test: passed\n");
+}
+
+void ion_map_test()
+{
+	int fd, map_fd, ret;
+	size_t i;
+	struct ion_handle *handle;
+	unsigned char *ptr;
+
+	if(_ion_alloc_test(&fd, &handle))
+		return;
+
+	ret = ion_map(fd, handle, len, prot, map_flags, 0, &ptr, &map_fd);
+	if (ret)
+		return;
+
+	for (i = 0; i < len; i++) {
+		ptr[i] = (unsigned char)i;
+	}
+	for (i = 0; i < len; i++)
+		if (ptr[i] != (unsigned char)i)
+			printf("%s failed wrote %d read %d from mapped "
+			       "memory\n", __func__, i, ptr[i]);
+	/* clean up properly */
+	ret = ion_free(fd, handle);
+	ion_close(fd);
+	munmap(ptr, len);
+	close(map_fd);
+
+	_ion_alloc_test(&fd, &handle);
+	close(fd);
+
+#if 0
+	munmap(ptr, len);
+	close(map_fd);
+	ion_close(fd);
+
+	_ion_alloc_test(len, align, flags, &fd, &handle);
+	close(map_fd);
+	ret = ion_map(fd, handle, len, prot, flags, 0, &ptr, &map_fd);
+	/* don't clean up */
+#endif
+}
+
+void ion_share_test()
+
+{
+	struct ion_handle *handle;
+	int sd[2];
+	int num_fd = 1;
+	struct iovec count_vec = {
+		.iov_base = &num_fd,
+		.iov_len = sizeof num_fd,
+	};
+	char buf[CMSG_SPACE(sizeof(int))];
+	socketpair(AF_UNIX, SOCK_STREAM, 0, sd);
+	if (fork()) {
+		struct msghdr msg = {
+			.msg_control = buf,
+			.msg_controllen = sizeof buf,
+			.msg_iov = &count_vec,
+			.msg_iovlen = 1,
+		};
+
+		struct cmsghdr *cmsg;
+		int fd, share_fd, ret;
+		char *ptr;
+		/* parent */
+		if(_ion_alloc_test(&fd, &handle))
+			return;
+		ret = ion_share(fd, handle, &share_fd);
+		if (ret)
+			printf("share failed %s\n", strerror(errno));
+		ptr = mmap(NULL, len, prot, map_flags, share_fd, 0);
+		if (ptr == MAP_FAILED) {
+			return;
+		}
+		strcpy(ptr, "master");
+		cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		*(int *)CMSG_DATA(cmsg) = share_fd;
+		/* send the fd */
+		printf("master? [%10s] should be [master]\n", ptr);
+		printf("master sending msg 1\n");
+		sendmsg(sd[0], &msg, 0);
+		if (recvmsg(sd[0], &msg, 0) < 0)
+			perror("master recv msg 2");
+		printf("master? [%10s] should be [child]\n", ptr);
+
+		/* send ping */
+		sendmsg(sd[0], &msg, 0);
+		printf("master->master? [%10s]\n", ptr);
+		if (recvmsg(sd[0], &msg, 0) < 0)
+			perror("master recv 1");
+	} else {
+		struct msghdr msg;
+		struct cmsghdr *cmsg;
+		char* ptr;
+		int fd, recv_fd;
+		char* child_buf[100];
+		/* child */
+		struct iovec count_vec = {
+			.iov_base = child_buf,
+			.iov_len = sizeof child_buf,
+		};
+
+		struct msghdr child_msg = {
+			.msg_control = buf,
+			.msg_controllen = sizeof buf,
+			.msg_iov = &count_vec,
+			.msg_iovlen = 1,
+		};
+
+		if (recvmsg(sd[1], &child_msg, 0) < 0)
+			perror("child recv msg 1");
+		cmsg = CMSG_FIRSTHDR(&child_msg);
+		if (cmsg == NULL) {
+			printf("no cmsg rcvd in child");
+			return;
+		}
+		recv_fd = *(int*)CMSG_DATA(cmsg);
+		if (recv_fd < 0) {
+			printf("could not get recv_fd from socket");
+			return;
+		}
+		printf("child %d\n", recv_fd);
+		fd = ion_open();
+		ptr = mmap(NULL, len, prot, map_flags, recv_fd, 0);
+		if (ptr == MAP_FAILED) {
+			return;
+		}
+		printf("child? [%10s] should be [master]\n", ptr);
+		strcpy(ptr, "child");
+		printf("child sending msg 2\n");
+		sendmsg(sd[1], &child_msg, 0);
+	}
+}
+
+int main(int argc, char* argv[]) {
+	int c;
+	enum tests {
+		ALLOC_TEST = 0, MAP_TEST, SHARE_TEST,
+	};
+
+	while (1) {
+		static struct option opts[] = {
+			{"alloc", no_argument, 0, 'a'},
+			{"alloc_flags", required_argument, 0, 'f'},
+			{"map", no_argument, 0, 'm'},
+			{"share", no_argument, 0, 's'},
+			{"len", required_argument, 0, 'l'},
+			{"align", required_argument, 0, 'g'},
+			{"map_flags", required_argument, 0, 'z'},
+			{"prot", required_argument, 0, 'p'},
+			{"width", required_argument, 0, 'w'},
+			{"height", required_argument, 0, 'h'},
+		};
+		int i = 0;
+		c = getopt_long(argc, argv, "af:h:l:mr:stw:", opts, &i);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 'l':
+			len = atol(optarg);
+			break;
+		case 'g':
+			align = atol(optarg);
+			break;
+		case 'z':
+			map_flags = 0;
+			map_flags |= strstr(optarg, "PROT_EXEC") ?
+				PROT_EXEC : 0;
+			map_flags |= strstr(optarg, "PROT_READ") ?
+				PROT_READ: 0;
+			map_flags |= strstr(optarg, "PROT_WRITE") ?
+				PROT_WRITE: 0;
+			map_flags |= strstr(optarg, "PROT_NONE") ?
+				PROT_NONE: 0;
+			break;
+		case 'p':
+			prot = 0;
+			prot |= strstr(optarg, "MAP_PRIVATE") ?
+				MAP_PRIVATE	 : 0;
+			prot |= strstr(optarg, "MAP_SHARED") ?
+				MAP_PRIVATE	 : 0;
+			break;
+		case 'f':
+			alloc_flags = atol(optarg);
+			break;
+		case 'a':
+			test = ALLOC_TEST;
+			break;
+		case 'm':
+			test = MAP_TEST;
+			break;
+		case 's':
+			test = SHARE_TEST;
+			break;
+		case 'w':
+			width = atol(optarg);
+			break;
+		case 'h':
+			height = atol(optarg);
+			break;
+		}
+	}
+	printf("test %d, len %u, width %u, height %u align %u, "
+		   "map_flags %d, prot %d, alloc_flags %d\n", test, len, width,
+		   height, align, map_flags, prot, alloc_flags);
+	switch (test) {
+		case ALLOC_TEST:
+			ion_alloc_test();
+			break;
+		case MAP_TEST:
+			ion_map_test();
+			break;
+		case SHARE_TEST:
+			ion_share_test();
+			break;
+		default:
+			printf("must specify a test (alloc, map, share)\n");
+	}
+	return 0;
+}
diff --git a/liblog/Android.mk b/liblog/Android.mk
index bd2590e..be5cec2 100644
--- a/liblog/Android.mk
+++ b/liblog/Android.mk
@@ -41,7 +41,7 @@
 liblog_host_sources := $(liblog_sources) fake_log_device.c
 
 
-# Static library for host
+# Shared and static library for host
 # ========================================================
 LOCAL_MODULE := liblog
 LOCAL_SRC_FILES := $(liblog_host_sources)
@@ -49,6 +49,11 @@
 LOCAL_CFLAGS := -DFAKE_LOG_DEVICE=1
 include $(BUILD_HOST_STATIC_LIBRARY)
 
+include $(CLEAR_VARS)
+LOCAL_MODULE := liblog
+LOCAL_WHOLE_STATIC_LIBRARIES := liblog
+include $(BUILD_HOST_SHARED_LIBRARY)
+
 
 # Static library for host, 64-bit
 # ========================================================
diff --git a/liblog/fake_log_device.c b/liblog/fake_log_device.c
index f8b7254..df43299 100644
--- a/liblog/fake_log_device.c
+++ b/liblog/fake_log_device.c
@@ -398,7 +398,7 @@
         break;
     case FORMAT_THREAD:
         prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
-            "%c(%5d:%p) ", priChar, pid, (void*)tid);
+            "%c(%5d:%5d) ", priChar, pid, tid);
         strcpy(suffixBuf, "\n"); suffixLen = 1;
         break;
     case FORMAT_RAW:
@@ -417,8 +417,8 @@
         break;
     case FORMAT_LONG:
         prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
-            "[ %s %5d:%p %c/%-8s ]\n",
-            timeBuf, pid, (void*)tid, priChar, tag);
+            "[ %s %5d:%5d %c/%-8s ]\n",
+            timeBuf, pid, tid, priChar, tag);
         strcpy(suffixBuf, "\n\n"); suffixLen = 2;
         break;
     default:
diff --git a/liblog/logprint.c b/liblog/logprint.c
index 8366c94..6fac84b 100644
--- a/liblog/logprint.c
+++ b/liblog/logprint.c
@@ -673,7 +673,7 @@
 
     if (inCount != 0) {
         fprintf(stderr,
-            "Warning: leftover binary log data (%d bytes)\n", inCount);
+            "Warning: leftover binary log data (%zu bytes)\n", inCount);
     }
 
     /*
@@ -753,7 +753,7 @@
             break;
         case FORMAT_THREAD:
             prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
-                "%c(%5d:%p) ", priChar, entry->pid, (void*)entry->tid);
+                "%c(%5d:%5d) ", priChar, entry->pid, entry->tid);
             strcpy(suffixBuf, "\n");
             suffixLen = 1;
             break;
@@ -773,15 +773,15 @@
         case FORMAT_THREADTIME:
             prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
                 "%s.%03ld %5d %5d %c %-8s: ", timeBuf, entry->tv_nsec / 1000000,
-                (int)entry->pid, (int)entry->tid, priChar, entry->tag);
+                entry->pid, entry->tid, priChar, entry->tag);
             strcpy(suffixBuf, "\n");
             suffixLen = 1;
             break;
         case FORMAT_LONG:
             prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
-                "[ %s.%03ld %5d:%p %c/%-8s ]\n",
+                "[ %s.%03ld %5d:%5d %c/%-8s ]\n",
                 timeBuf, entry->tv_nsec / 1000000, entry->pid,
-                (void*)entry->tid, priChar, entry->tag);
+                entry->tid, priChar, entry->tag);
             strcpy(suffixBuf, "\n\n");
             suffixLen = 2;
             prefixSuffixIsHeaderFooter = 1;
diff --git a/libnetutils/dhcp_utils.c b/libnetutils/dhcp_utils.c
old mode 100755
new mode 100644
index 1e08eb6..903a1db
--- a/libnetutils/dhcp_utils.c
+++ b/libnetutils/dhcp_utils.c
@@ -33,8 +33,28 @@
                                   /* when polling for property values */
 static const char DAEMON_NAME_RENEW[]  = "iprenew";
 static char errmsg[100];
-/* interface suffix on dhcpcd */
-#define MAX_DAEMON_SUFFIX 25
+/* interface length for dhcpcd daemon start (dhcpcd_<interface> as defined in init.rc file)
+ * or for filling up system properties dhcpcd.<interface>.ipaddress, dhcpcd.<interface>.dns1
+ * and other properties on a successful bind
+ */
+#define MAX_INTERFACE_LENGTH 25
+
+/*
+ * P2p interface names increase sequentially p2p-p2p0-1, p2p-p2p0-2.. after
+ * group formation. This does not work well with system properties which can quickly
+ * exhaust or for specifiying a dhcp start target in init which requires
+ * interface to be pre-defined in init.rc file.
+ *
+ * This function returns a common string p2p for all p2p interfaces.
+ */
+void get_p2p_interface_replacement(const char *interface, char *p2p_interface) {
+    /* Use p2p for any interface starting with p2p. */
+    if (strncmp(interface, "p2p",3) == 0) {
+        strncpy(p2p_interface, "p2p", MAX_INTERFACE_LENGTH);
+    } else {
+        strncpy(p2p_interface, interface, MAX_INTERFACE_LENGTH);
+    }
+}
 
 /*
  * Wait for a system property to be assigned a specified value.
@@ -70,18 +90,23 @@
                      char *dns1,
                      char *dns2,
                      char *server,
-                     uint32_t  *lease)
+                     uint32_t *lease,
+                     char *vendorInfo)
 {
     char prop_name[PROPERTY_KEY_MAX];
     char prop_value[PROPERTY_VALUE_MAX];
+    /* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */
+    char p2p_interface[MAX_INTERFACE_LENGTH];
 
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.ipaddress", DHCP_PROP_NAME_PREFIX, interface);
+    get_p2p_interface_replacement(interface, p2p_interface);
+
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.ipaddress", DHCP_PROP_NAME_PREFIX, p2p_interface);
     property_get(prop_name, ipaddr, NULL);
 
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.gateway", DHCP_PROP_NAME_PREFIX, interface);
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.gateway", DHCP_PROP_NAME_PREFIX, p2p_interface);
     property_get(prop_name, gateway, NULL);
 
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.server", DHCP_PROP_NAME_PREFIX, interface);
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.server", DHCP_PROP_NAME_PREFIX, p2p_interface);
     property_get(prop_name, server, NULL);
 
     //TODO: Handle IPv6 when we change system property usage
@@ -90,7 +115,7 @@
         strncpy(gateway, server, PROPERTY_VALUE_MAX);
     }
 
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.mask", DHCP_PROP_NAME_PREFIX, interface);
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.mask", DHCP_PROP_NAME_PREFIX, p2p_interface);
     if (property_get(prop_name, prop_value, NULL)) {
         int p;
         // this conversion is v4 only, but this dhcp client is v4 only anyway
@@ -112,16 +137,21 @@
         }
         *prefixLength = p;
     }
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.dns1", DHCP_PROP_NAME_PREFIX, interface);
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.dns1", DHCP_PROP_NAME_PREFIX, p2p_interface);
     property_get(prop_name, dns1, NULL);
 
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.dns2", DHCP_PROP_NAME_PREFIX, interface);
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.dns2", DHCP_PROP_NAME_PREFIX, p2p_interface);
     property_get(prop_name, dns2, NULL);
 
-    snprintf(prop_name, sizeof(prop_name), "%s.%s.leasetime", DHCP_PROP_NAME_PREFIX, interface);
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.leasetime", DHCP_PROP_NAME_PREFIX, p2p_interface);
     if (property_get(prop_name, prop_value, NULL)) {
         *lease = atol(prop_value);
     }
+
+    snprintf(prop_name, sizeof(prop_name), "%s.%s.vendorInfo", DHCP_PROP_NAME_PREFIX,
+            p2p_interface);
+    property_get(prop_name, vendorInfo, NULL);
+
     return 0;
 }
 
@@ -133,18 +163,14 @@
     return inet_ntoa(in_addr);
 }
 
-void get_daemon_suffix(const char *interface, char *daemon_suffix) {
-    /* Use p2p suffix for any p2p interface. */
-    if (strncmp(interface, "p2p",3) == 0) {
-        sprintf(daemon_suffix, "p2p");
-    } else {
-        snprintf(daemon_suffix, MAX_DAEMON_SUFFIX, "%s", interface);
-    }
-}
-
 /*
  * Start the dhcp client daemon, and wait for it to finish
  * configuring the interface.
+ *
+ * The device init.rc file needs a corresponding entry for this work.
+ *
+ * Example:
+ * service dhcpcd_<interface> /system/bin/dhcpcd -ABKL
  */
 int dhcp_do_request(const char *interface,
                     char *ipaddr,
@@ -153,7 +179,8 @@
                     char *dns1,
                     char *dns2,
                     char *server,
-                    uint32_t  *lease)
+                    uint32_t *lease,
+                    char *vendorInfo)
 {
     char result_prop_name[PROPERTY_KEY_MAX];
     char daemon_prop_name[PROPERTY_KEY_MAX];
@@ -161,27 +188,28 @@
     char daemon_cmd[PROPERTY_VALUE_MAX * 2];
     const char *ctrl_prop = "ctl.start";
     const char *desired_status = "running";
-    char daemon_suffix[MAX_DAEMON_SUFFIX];
+    /* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */
+    char p2p_interface[MAX_INTERFACE_LENGTH];
 
-    get_daemon_suffix(interface, daemon_suffix);
+    get_p2p_interface_replacement(interface, p2p_interface);
 
     snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
             DHCP_PROP_NAME_PREFIX,
-            interface);
+            p2p_interface);
 
     snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s",
             DAEMON_PROP_NAME,
-            daemon_suffix);
+            p2p_interface);
 
     /* Erase any previous setting of the dhcp result property */
     property_set(result_prop_name, "");
 
     /* Start the daemon and wait until it's ready */
     if (property_get(HOSTNAME_PROP_NAME, prop_value, NULL) && (prop_value[0] != '\0'))
-        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-h %s %s", DAEMON_NAME, daemon_suffix,
+        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-h %s %s", DAEMON_NAME, p2p_interface,
                  prop_value, interface);
     else
-        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME, daemon_suffix, interface);
+        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME, p2p_interface, interface);
     memset(prop_value, '\0', PROPERTY_VALUE_MAX);
     property_set(ctrl_prop, daemon_cmd);
     if (wait_for_property(daemon_prop_name, desired_status, 10) < 0) {
@@ -202,8 +230,8 @@
     }
     if (strcmp(prop_value, "ok") == 0) {
         char dns_prop_name[PROPERTY_KEY_MAX];
-        if (fill_ip_info(interface, ipaddr, gateway, prefixLength, dns1, dns2, server, lease)
-                == -1) {
+        if (fill_ip_info(interface, ipaddr, gateway, prefixLength,
+                dns1, dns2, server, lease, vendorInfo) == -1) {
             return -1;
         }
 
@@ -231,19 +259,19 @@
     const char *ctrl_prop = "ctl.stop";
     const char *desired_status = "stopped";
 
-    char daemon_suffix[MAX_DAEMON_SUFFIX];
+    char p2p_interface[MAX_INTERFACE_LENGTH];
 
-    get_daemon_suffix(interface, daemon_suffix);
+    get_p2p_interface_replacement(interface, p2p_interface);
 
     snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
             DHCP_PROP_NAME_PREFIX,
-            interface);
+            p2p_interface);
 
     snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s",
             DAEMON_PROP_NAME,
-            daemon_suffix);
+            p2p_interface);
 
-    snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s", DAEMON_NAME, daemon_suffix);
+    snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s", DAEMON_NAME, p2p_interface);
 
     /* Stop the daemon and wait until it's reported to be stopped */
     property_set(ctrl_prop, daemon_cmd);
@@ -264,15 +292,15 @@
     const char *ctrl_prop = "ctl.stop";
     const char *desired_status = "stopped";
 
-    char daemon_suffix[MAX_DAEMON_SUFFIX];
+    char p2p_interface[MAX_INTERFACE_LENGTH];
 
-    get_daemon_suffix(interface, daemon_suffix);
+    get_p2p_interface_replacement(interface, p2p_interface);
 
     snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s",
             DAEMON_PROP_NAME,
-            daemon_suffix);
+            p2p_interface);
 
-    snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s", DAEMON_NAME, daemon_suffix);
+    snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s", DAEMON_NAME, p2p_interface);
 
     /* Stop the daemon and wait until it's reported to be stopped */
     property_set(ctrl_prop, daemon_cmd);
@@ -287,37 +315,41 @@
 }
 
 /**
- * Run WiMAX dhcp renew service.
- * "wimax_renew" service shoud be included in init.rc.
+ * The device init.rc file needs a corresponding entry.
+ *
+ * Example:
+ * service iprenew_<interface> /system/bin/dhcpcd -n
+ *
  */
 int dhcp_do_request_renew(const char *interface,
-                    in_addr_t *ipaddr,
-                    in_addr_t *gateway,
+                    char *ipaddr,
+                    char *gateway,
                     uint32_t *prefixLength,
-                    in_addr_t *dns1,
-                    in_addr_t *dns2,
-                    in_addr_t *server,
-                    uint32_t  *lease)
+                    char *dns1,
+                    char *dns2,
+                    char *server,
+                    uint32_t *lease,
+                    char *vendorInfo)
 {
     char result_prop_name[PROPERTY_KEY_MAX];
     char prop_value[PROPERTY_VALUE_MAX] = {'\0'};
     char daemon_cmd[PROPERTY_VALUE_MAX * 2];
     const char *ctrl_prop = "ctl.start";
 
-    char daemon_suffix[MAX_DAEMON_SUFFIX];
+    char p2p_interface[MAX_INTERFACE_LENGTH];
 
-    get_daemon_suffix(interface, daemon_suffix);
+    get_p2p_interface_replacement(interface, p2p_interface);
 
     snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
             DHCP_PROP_NAME_PREFIX,
-            interface);
+            p2p_interface);
 
     /* Erase any previous setting of the dhcp result property */
     property_set(result_prop_name, "");
 
     /* Start the renew daemon and wait until it's ready */
     snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME_RENEW,
-            daemon_suffix, interface);
+            p2p_interface, interface);
     memset(prop_value, '\0', PROPERTY_VALUE_MAX);
     property_set(ctrl_prop, daemon_cmd);
 
@@ -333,7 +365,8 @@
         return -1;
     }
     if (strcmp(prop_value, "ok") == 0) {
-        fill_ip_info(interface, ipaddr, gateway, prefixLength, dns1, dns2, server, lease);
+        fill_ip_info(interface, ipaddr, gateway, prefixLength,
+                dns1, dns2, server, lease, vendorInfo);
         return 0;
     } else {
         snprintf(errmsg, sizeof(errmsg), "DHCP Renew result was %s", prop_value);
diff --git a/libnetutils/dhcpclient.c b/libnetutils/dhcpclient.c
index b38e258..34500e7 100644
--- a/libnetutils/dhcpclient.c
+++ b/libnetutils/dhcpclient.c
@@ -197,7 +197,11 @@
         }
         switch(opt) {
         case OPT_SUBNET_MASK:
-            if (optlen >= 4) info->prefixLength = ipv4NetmaskToPrefixLength(*((uint32_t*)x));
+            if (optlen >= 4) {
+                in_addr_t mask;
+                memcpy(&mask, x, 4);
+                info->prefixLength = ipv4NetmaskToPrefixLength(mask);
+            }
             break;
         case OPT_GATEWAY:
             if (optlen >= 4) memcpy(&info->gateway, x, 4);
diff --git a/libnetutils/ifc_utils.c b/libnetutils/ifc_utils.c
index 186b98c..f19cb41 100644
--- a/libnetutils/ifc_utils.c
+++ b/libnetutils/ifc_utils.c
@@ -75,9 +75,8 @@
 
 int ipv4NetmaskToPrefixLength(in_addr_t mask)
 {
-    mask = ntohl(mask);
     int prefixLength = 0;
-    uint32_t m = (uint32_t)mask;
+    uint32_t m = (uint32_t)ntohl(mask);
     while (m & 0x80000000) {
         prefixLength++;
         m = m << 1;
@@ -486,7 +485,7 @@
         if(ioctl(ifc_ctl_sock, SIOCGIFNETMASK, &ifr) < 0) {
             *prefixLength = 0;
         } else {
-            *prefixLength = ipv4NetmaskToPrefixLength((int)
+            *prefixLength = ipv4NetmaskToPrefixLength(
                     ((struct sockaddr_in*) &ifr.ifr_addr)->sin_addr.s_addr);
         }
     }
diff --git a/libnetutils/packet.c b/libnetutils/packet.c
index 3ec83fe..be4e0db 100644
--- a/libnetutils/packet.c
+++ b/libnetutils/packet.c
@@ -39,7 +39,7 @@
 
 int fatal();
 
-int open_raw_socket(const char *ifname, uint8_t *hwaddr, int if_index)
+int open_raw_socket(const char *ifname __attribute__((unused)), uint8_t *hwaddr, int if_index)
 {
     int s, flag;
     struct sockaddr_ll bindaddr;
diff --git a/libpixelflinger/Android.mk b/libpixelflinger/Android.mk
index ed2ab5e..1947c2d 100644
--- a/libpixelflinger/Android.mk
+++ b/libpixelflinger/Android.mk
@@ -43,6 +43,11 @@
 PIXELFLINGER_CFLAGS += -fstrict-aliasing -fomit-frame-pointer
 endif
 
+ifeq ($(TARGET_ARCH),mips)
+PIXELFLINGER_SRC_FILES += arch-mips/t32cb16blend.S
+PIXELFLINGER_CFLAGS += -fstrict-aliasing -fomit-frame-pointer
+endif
+
 LOCAL_SHARED_LIBRARIES := libcutils
 
 ifneq ($(TARGET_ARCH),arm)
diff --git a/libpixelflinger/arch-mips/t32cb16blend.S b/libpixelflinger/arch-mips/t32cb16blend.S
new file mode 100644
index 0000000..c911fbb
--- /dev/null
+++ b/libpixelflinger/arch-mips/t32cb16blend.S
@@ -0,0 +1,264 @@
+/* libs/pixelflinger/t32cb16blend.S
+**
+** Copyright 2010, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifdef DEBUG
+#define DBG
+#else
+#define DBG #
+#endif
+
+/*
+ * blend one of 2 16bpp RGB pixels held in dreg selected by shift
+ * with the 32bpp ABGR pixel held in src and store the result in fb
+ *
+ * Assumes that the dreg data is little endian and that
+ * the the second pixel (shift==16) will be merged into
+ * the fb result
+ *
+ * Uses $t0,$t6,$t7,$t8
+ */
+
+#if __mips==32 && __mips_isa_rev>=2
+	.macro pixel dreg src fb shift
+	/*
+	 * sA = s >> 24
+	 * f = 0x100 - (sA + (sA>>7))
+	 */
+DBG	.set	noat
+DBG	rdhwr	$at,$2
+DBG	.set	at
+
+	srl	$t7,\src,24
+	srl	$t6,$t7,7
+	addu	$t7,$t6
+	li	$t6,0x100
+	subu	$t7,$t6,$t7
+
+	/* red */
+	ext	$t8,\dreg,\shift+6+5,5			# dst[\shift:15..11]
+	mul	$t6,$t8,$t7
+	ext	$t0,\dreg,\shift+5,6			# start green extraction dst[\shift:10..5]
+	ext	$t8,\src,3,5				# src[7..3]
+	srl	$t6,8
+	addu	$t8,$t6
+	ins	\fb,$t8,\shift+6+5,5			# dst[\shift:15..11]
+
+        /* green */
+	mul	$t8,$t0,$t7
+	ext	$t0,\dreg,\shift,5			# start blue extraction dst[\shift:4..0]
+	ext	$t6,\src,2+8,6				# src[15..10]
+	srl	$t8,8
+        addu	$t8,$t6
+
+	/* blue */
+	mul	$t0,$t0,$t7
+	ins	\fb,$t8,\shift+5,6			# finish green insertion dst[\shift:10..5]
+	ext	$t6,\src,(3+8+8),5
+	srl	$t8,$t0,8
+	addu	$t8,$t6
+	ins	\fb,$t8,\shift,5
+
+DBG	.set	noat
+DBG	rdhwr	$t8,$2
+DBG	subu	$t8,$at
+DBG	sltu	$at,$t8,$v0
+DBG	movn	$v0,$t8,$at
+DBG	sgtu	$at,$t8,$v1
+DBG	movn	$v1,$t8,$at
+DBG	.set	at
+	.endm
+
+#else
+
+	.macro pixel dreg src fb shift
+	/*
+	 * sA = s >> 24
+	 * f = 0x100 - (sA + (sA>>7))
+	 */
+DBG	.set	push
+DBG	.set	noat
+DBG	.set	mips32r2
+DBG 	rdhwr	$at,$2
+DBG	.set	pop
+
+	srl	$t7,\src,24
+	srl	$t6,$t7,7
+	addu	$t7,$t6
+	li	$t6,0x100
+	subu	$t7,$t6,$t7
+
+	/*
+	 * red
+	 * dR = (d >> (6 + 5)) & 0x1f;
+	 * dR = (f*dR)>>8
+	 * sR = (s >> (   3)) & 0x1f;
+	 * sR += dR
+	 * fb |= sR << 11
+	 */
+	srl	$t8,\dreg,\shift+6+5
+.if \shift==0
+	and     $t8,0x1f
+.endif
+	mul	$t8,$t8,$t7
+	srl	$t6,\src,3
+	and	$t6,0x1f
+	srl	$t8,8
+	addu	$t8,$t6
+.if \shift!=0
+	sll	$t8,\shift+11
+	or	\fb,$t8
+.else
+	sll	\fb,$t8,11
+.endif
+
+        /*
+	 * green
+	 * dG = (d >> 5) & 0x3f
+	 * dG = (f*dG) >> 8
+	 * sG = (s >> ( 8+2))&0x3F;
+	 */
+	srl	$t8,\dreg,\shift+5
+        and	$t8,0x3f
+	mul	$t8,$t8,$t7
+        srl	$t6,\src,8+2
+        and     $t6,0x3f
+	srl	$t8,8
+        addu	$t8,$t6
+	sll	$t8,\shift + 5
+	or	\fb,$t8
+
+	/* blue */
+.if \shift!=0
+	srl	$t8,\dreg,\shift
+	and	$t8,0x1f
+.else
+	and	$t8,\dreg,0x1f
+.endif
+	mul	$t8,$t8,$t7
+	srl	$t6,\src,(8+8+3)
+	and	$t6,0x1f
+	srl	$t8,8
+	addu	$t8,$t6
+.if \shift!=0
+	sll	$t8,\shift
+.endif
+	or	\fb,$t8
+DBG	.set	push
+DBG	.set	noat
+DBG	.set	mips32r2
+DBG	rdhwr	$t8,$2
+DBG	subu	$t8,$at
+DBG	sltu	$at,$t8,$v0
+DBG	movn	$v0,$t8,$at
+DBG	sgtu	$at,$t8,$v1
+DBG	movn	$v1,$t8,$at
+DBG	.set	pop
+	.endm
+#endif
+
+	.text
+	.align
+
+	.global scanline_t32cb16blend_mips
+	.ent	scanline_t32cb16blend_mips
+scanline_t32cb16blend_mips:
+DBG	li	$v0,0xffffffff
+DBG	li	$v1,0
+	/* Align the destination if necessary */
+	and	$t0,$a0,3
+	beqz	$t0,aligned
+
+	/* as long as there is at least one pixel */
+	beqz	$a2,done
+
+	lw	$t4,($a1)
+	addu	$a0,2
+	addu	$a1,4
+	beqz	$t4,1f
+	lhu	$t3,-2($a0)
+	pixel   $t3,$t4,$t1,0
+	sh	$t1,-2($a0)
+1:	subu	$a2,1
+
+aligned:
+	/* Check to see if its worth unrolling the loop */
+	subu	$a2,4
+	bltz	$a2,tail
+
+	/* Process 4 pixels at a time */
+fourpixels:
+	/* 1st pair of pixels */
+	lw	$t4,0($a1)
+	lw	$t5,4($a1)
+	addu	$a0,8
+	addu	$a1,16
+
+	/* both are zero, skip this pair */
+	or	$t3,$t4,$t5
+	beqz	$t3,1f
+
+	/* load the destination */
+	lw	$t3,-8($a0)
+
+	pixel	$t3,$t4,$t1,0
+	pixel	$t3,$t5,$t1,16
+	sw	$t1,-8($a0)
+
+1:
+	/* 2nd pair of pixels */
+	lw	$t4,-8($a1)
+	lw	$t5,-4($a1)
+
+	/* both are zero, skip this pair */
+	or	$t3,$t4,$t5
+	beqz	$t3,1f
+
+	/* load the destination */
+	lw	$t3,-4($a0)
+
+	pixel	$t3,$t4,$t1,0
+	pixel	$t3,$t5,$t1,16
+	sw	$t1,-4($a0)
+
+1:	subu    $a2,4
+	bgtz	$a2,fourpixels
+
+tail:
+	/* the pixel count underran, restore it now */
+	addu	$a2,4
+
+	/* handle the last 0..3 pixels */
+	beqz	$a2,done
+onepixel:
+	lw	$t4,($a1)
+	addu	$a0,2
+	addu	$a1,4
+	beqz	$t4,1f
+	lhu	$t3,-2($a0)
+	pixel   $t3,$t4,$t1,0
+	sh	$t1,-2($a0)
+1:	subu	$a2,1
+	bnez	$a2,onepixel
+done:
+DBG	.set    push
+DBG	.set    mips32r2
+DBG 	rdhwr	$a0,$3
+DBG 	mul	$v0,$a0
+DBG 	mul	$v1,$a0
+DBG	.set    pop
+	j	$ra
+	.end	scanline_t32cb16blend_mips
diff --git a/libpixelflinger/scanline.cpp b/libpixelflinger/scanline.cpp
index 93440f5..d1f3d96 100644
--- a/libpixelflinger/scanline.cpp
+++ b/libpixelflinger/scanline.cpp
@@ -110,10 +110,14 @@
 static void rect_generic(context_t* c, size_t yc);
 static void rect_memcpy(context_t* c, size_t yc);
 
+#if defined( __arm__)
 extern "C" void scanline_t32cb16blend_arm(uint16_t*, uint32_t*, size_t);
 extern "C" void scanline_t32cb16_arm(uint16_t *dst, uint32_t *src, size_t ct);
 extern "C" void scanline_col32cb16blend_neon(uint16_t *dst, uint32_t *col, size_t ct);
 extern "C" void scanline_col32cb16blend_arm(uint16_t *dst, uint32_t col, size_t ct);
+#elif defined(__mips__)
+extern "C" void scanline_t32cb16blend_mips(uint16_t*, uint32_t*, size_t);
+#endif
 
 // ----------------------------------------------------------------------------
 
@@ -2136,7 +2140,7 @@
 
 void scanline_t32cb16blend(context_t* c)
 {
-#if ((ANDROID_CODEGEN >= ANDROID_CODEGEN_ASM) && defined(__arm__))
+#if ((ANDROID_CODEGEN >= ANDROID_CODEGEN_ASM) && (defined(__arm__) || defined(__mips)))
     int32_t x = c->iterators.xl;
     size_t ct = c->iterators.xr - x;
     int32_t y = c->iterators.y;
@@ -2148,8 +2152,12 @@
     const int32_t v = (c->state.texture[0].shade.it0>>16) + y;
     uint32_t *src = reinterpret_cast<uint32_t*>(tex->data)+(u+(tex->stride*v));
 
+#ifdef __arm__
     scanline_t32cb16blend_arm(dst, src, ct);
 #else
+    scanline_t32cb16blend_mips(dst, src, ct);
+#endif
+#else
     dst_iterator16  di(c);
     horz_iterator32  hi(c);
     blender_32to16  bl(c);
diff --git a/libsparse/Android.mk b/libsparse/Android.mk
new file mode 100644
index 0000000..69b52c3
--- /dev/null
+++ b/libsparse/Android.mk
@@ -0,0 +1,101 @@
+# Copyright 2010 The Android Open Source Project
+
+LOCAL_PATH:= $(call my-dir)
+
+libsparse_src_files := \
+        backed_block.c \
+        output_file.c \
+        sparse.c \
+        sparse_crc32.c \
+        sparse_err.c \
+        sparse_read.c
+
+include $(CLEAR_VARS)
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_SRC_FILES := $(libsparse_src_files)
+LOCAL_MODULE := libsparse
+LOCAL_MODULE_TAGS := optional
+LOCAL_STATIC_LIBRARIES := libz
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/include external/zlib
+
+include $(BUILD_HOST_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_SRC_FILES := $(libsparse_src_files)
+LOCAL_MODULE := libsparse
+LOCAL_MODULE_TAGS := optional
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/include external/zlib
+LOCAL_SHARED_LIBRARIES := libz
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_SRC_FILES := $(libsparse_src_files)
+LOCAL_MODULE := libsparse
+LOCAL_MODULE_TAGS := optional
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/include external/zlib
+LOCAL_STATIC_LIBRARIES := libz
+
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := simg2img.c \
+	sparse_crc32.c
+LOCAL_MODULE := simg2img
+LOCAL_MODULE_TAGS := debug
+LOCAL_STATIC_LIBRARIES := libsparse libz
+
+include $(BUILD_HOST_EXECUTABLE)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := simg2img.c \
+	sparse_crc32.c
+LOCAL_MODULE := simg2img
+LOCAL_MODULE_TAGS := optional
+LOCAL_STATIC_LIBRARIES := libsparse libz
+
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := img2simg.c
+LOCAL_MODULE := img2simg
+LOCAL_MODULE_TAGS := debug
+LOCAL_STATIC_LIBRARIES := libsparse libz
+
+include $(BUILD_HOST_EXECUTABLE)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := img2simg.c
+LOCAL_MODULE := img2simg
+LOCAL_MODULE_TAGS := optional
+LOCAL_STATIC_LIBRARIES := libsparse libz
+
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := simg2simg.c
+LOCAL_MODULE := simg2simg
+LOCAL_MODULE_TAGS := debug
+LOCAL_STATIC_LIBRARIES := libsparse libz
+
+include $(BUILD_HOST_EXECUTABLE)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := simg_dump.py
+LOCAL_MODULE_TAGS := debug
+LOCAL_SRC_FILES := simg_dump.py
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_IS_HOST_MODULE := true
+
+include $(BUILD_PREBUILT)
diff --git a/libsparse/backed_block.c b/libsparse/backed_block.c
new file mode 100644
index 0000000..dfb217b
--- /dev/null
+++ b/libsparse/backed_block.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "backed_block.h"
+#include "sparse_defs.h"
+
+struct backed_block {
+	unsigned int block;
+	unsigned int len;
+	enum backed_block_type type;
+	union {
+		struct {
+			void *data;
+		} data;
+		struct {
+			char *filename;
+			int64_t offset;
+		} file;
+		struct {
+			int fd;
+			int64_t offset;
+		} fd;
+		struct {
+			uint32_t val;
+		} fill;
+	};
+	struct backed_block *next;
+};
+
+struct backed_block_list {
+	struct backed_block *data_blocks;
+	struct backed_block *last_used;
+	unsigned int block_size;
+};
+
+struct backed_block *backed_block_iter_new(struct backed_block_list *bbl)
+{
+	return bbl->data_blocks;
+}
+
+struct backed_block *backed_block_iter_next(struct backed_block *bb)
+{
+	return bb->next;
+}
+
+unsigned int backed_block_len(struct backed_block *bb)
+{
+	return bb->len;
+}
+
+unsigned int backed_block_block(struct backed_block *bb)
+{
+	return bb->block;
+}
+
+void *backed_block_data(struct backed_block *bb)
+{
+	assert(bb->type == BACKED_BLOCK_DATA);
+	return bb->data.data;
+}
+
+const char *backed_block_filename(struct backed_block *bb)
+{
+	assert(bb->type == BACKED_BLOCK_FILE);
+	return bb->file.filename;
+}
+
+int backed_block_fd(struct backed_block *bb)
+{
+	assert(bb->type == BACKED_BLOCK_FD);
+	return bb->fd.fd;
+}
+
+int64_t backed_block_file_offset(struct backed_block *bb)
+{
+	assert(bb->type == BACKED_BLOCK_FILE || bb->type == BACKED_BLOCK_FD);
+	if (bb->type == BACKED_BLOCK_FILE) {
+		return bb->file.offset;
+	} else { /* bb->type == BACKED_BLOCK_FD */
+		return bb->fd.offset;
+	}
+}
+
+uint32_t backed_block_fill_val(struct backed_block *bb)
+{
+	assert(bb->type == BACKED_BLOCK_FILL);
+	return bb->fill.val;
+}
+
+enum backed_block_type backed_block_type(struct backed_block *bb)
+{
+	return bb->type;
+}
+
+void backed_block_destroy(struct backed_block *bb)
+{
+	if (bb->type == BACKED_BLOCK_FILE) {
+		free(bb->file.filename);
+	}
+
+	free(bb);
+}
+
+struct backed_block_list *backed_block_list_new(unsigned int block_size)
+{
+	struct backed_block_list *b = calloc(sizeof(struct backed_block_list), 1);
+	b->block_size = block_size;
+	return b;
+}
+
+void backed_block_list_destroy(struct backed_block_list *bbl)
+{
+	if (bbl->data_blocks) {
+		struct backed_block *bb = bbl->data_blocks;
+		while (bb) {
+			struct backed_block *next = bb->next;
+			backed_block_destroy(bb);
+			bb = next;
+		}
+	}
+
+	free(bbl);
+}
+
+void backed_block_list_move(struct backed_block_list *from,
+		struct backed_block_list *to, struct backed_block *start,
+		struct backed_block *end)
+{
+	struct backed_block *bb;
+
+	if (start == NULL) {
+		start = from->data_blocks;
+	}
+
+	if (!end) {
+		for (end = start; end && end->next; end = end->next)
+			;
+	}
+
+	if (start == NULL || end == NULL) {
+		return;
+	}
+
+	from->last_used = NULL;
+	to->last_used = NULL;
+	if (from->data_blocks == start) {
+		from->data_blocks = end->next;
+	} else {
+		for (bb = from->data_blocks; bb; bb = bb->next) {
+			if (bb->next == start) {
+				bb->next = end->next;
+				break;
+			}
+		}
+	}
+
+	if (!to->data_blocks) {
+		to->data_blocks = start;
+		end->next = NULL;
+	} else {
+		for (bb = to->data_blocks; bb; bb = bb->next) {
+			if (!bb->next || bb->next->block > start->block) {
+				end->next = bb->next;
+				bb->next = start;
+				break;
+			}
+		}
+	}
+}
+
+/* may free b */
+static int merge_bb(struct backed_block_list *bbl,
+		struct backed_block *a, struct backed_block *b)
+{
+	unsigned int block_len;
+
+	/* Block doesn't exist (possible if one block is the last block) */
+	if (!a || !b) {
+		return -EINVAL;
+	}
+
+	assert(a->block < b->block);
+
+	/* Blocks are of different types */
+	if (a->type != b->type) {
+		return -EINVAL;
+	}
+
+	/* Blocks are not adjacent */
+	block_len = a->len / bbl->block_size; /* rounds down */
+	if (a->block + block_len != b->block) {
+		return -EINVAL;
+	}
+
+	switch (a->type) {
+	case BACKED_BLOCK_DATA:
+		/* Don't support merging data for now */
+		return -EINVAL;
+	case BACKED_BLOCK_FILL:
+		if (a->fill.val != b->fill.val) {
+			return -EINVAL;
+		}
+		break;
+	case BACKED_BLOCK_FILE:
+		if (a->file.filename != b->file.filename ||
+				a->file.offset + a->len != b->file.offset) {
+			return -EINVAL;
+		}
+		break;
+	case BACKED_BLOCK_FD:
+		if (a->fd.fd != b->fd.fd ||
+				a->fd.offset + a->len != b->fd.offset) {
+			return -EINVAL;
+		}
+		break;
+	}
+
+	/* Blocks are compatible and adjacent, with a before b.  Merge b into a,
+	 * and free b */
+	a->len += b->len;
+	a->next = b->next;
+
+	backed_block_destroy(b);
+
+	return 0;
+}
+
+static int queue_bb(struct backed_block_list *bbl, struct backed_block *new_bb)
+{
+	struct backed_block *bb;
+
+	if (bbl->data_blocks == NULL) {
+		bbl->data_blocks = new_bb;
+		return 0;
+	}
+
+	if (bbl->data_blocks->block > new_bb->block) {
+		new_bb->next = bbl->data_blocks;
+		bbl->data_blocks = new_bb;
+		return 0;
+	}
+
+	/* Optimization: blocks are mostly queued in sequence, so save the
+	   pointer to the last bb that was added, and start searching from
+	   there if the next block number is higher */
+	if (bbl->last_used && new_bb->block > bbl->last_used->block)
+		bb = bbl->last_used;
+	else
+		bb = bbl->data_blocks;
+	bbl->last_used = new_bb;
+
+	for (; bb->next && bb->next->block < new_bb->block; bb = bb->next)
+		;
+
+	if (bb->next == NULL) {
+		bb->next = new_bb;
+	} else {
+		new_bb->next = bb->next;
+		bb->next = new_bb;
+	}
+
+	merge_bb(bbl, new_bb, new_bb->next);
+	merge_bb(bbl, bb, new_bb);
+
+	return 0;
+}
+
+/* Queues a fill block of memory to be written to the specified data blocks */
+int backed_block_add_fill(struct backed_block_list *bbl, unsigned int fill_val,
+		unsigned int len, unsigned int block)
+{
+	struct backed_block *bb = calloc(1, sizeof(struct backed_block));
+	if (bb == NULL) {
+		return -ENOMEM;
+	}
+
+	bb->block = block;
+	bb->len = len;
+	bb->type = BACKED_BLOCK_FILL;
+	bb->fill.val = fill_val;
+	bb->next = NULL;
+
+	return queue_bb(bbl, bb);
+}
+
+/* Queues a block of memory to be written to the specified data blocks */
+int backed_block_add_data(struct backed_block_list *bbl, void *data,
+		unsigned int len, unsigned int block)
+{
+	struct backed_block *bb = calloc(1, sizeof(struct backed_block));
+	if (bb == NULL) {
+		return -ENOMEM;
+	}
+
+	bb->block = block;
+	bb->len = len;
+	bb->type = BACKED_BLOCK_DATA;
+	bb->data.data = data;
+	bb->next = NULL;
+
+	return queue_bb(bbl, bb);
+}
+
+/* Queues a chunk of a file on disk to be written to the specified data blocks */
+int backed_block_add_file(struct backed_block_list *bbl, const char *filename,
+		int64_t offset, unsigned int len, unsigned int block)
+{
+	struct backed_block *bb = calloc(1, sizeof(struct backed_block));
+	if (bb == NULL) {
+		return -ENOMEM;
+	}
+
+	bb->block = block;
+	bb->len = len;
+	bb->type = BACKED_BLOCK_FILE;
+	bb->file.filename = strdup(filename);
+	bb->file.offset = offset;
+	bb->next = NULL;
+
+	return queue_bb(bbl, bb);
+}
+
+/* Queues a chunk of a fd to be written to the specified data blocks */
+int backed_block_add_fd(struct backed_block_list *bbl, int fd, int64_t offset,
+		unsigned int len, unsigned int block)
+{
+	struct backed_block *bb = calloc(1, sizeof(struct backed_block));
+	if (bb == NULL) {
+		return -ENOMEM;
+	}
+
+	bb->block = block;
+	bb->len = len;
+	bb->type = BACKED_BLOCK_FD;
+	bb->fd.fd = fd;
+	bb->fd.offset = offset;
+	bb->next = NULL;
+
+	return queue_bb(bbl, bb);
+}
+
+int backed_block_split(struct backed_block_list *bbl, struct backed_block *bb,
+		unsigned int max_len)
+{
+	struct backed_block *new_bb;
+
+	max_len = ALIGN_DOWN(max_len, bbl->block_size);
+
+	if (bb->len <= max_len) {
+		return 0;
+	}
+
+	new_bb = malloc(sizeof(struct backed_block));
+	if (bb == NULL) {
+		return -ENOMEM;
+	}
+
+	*new_bb = *bb;
+
+	new_bb->len = bb->len - max_len;
+	new_bb->block = bb->block + max_len / bbl->block_size;
+	new_bb->next = bb->next;
+	bb->next = new_bb;
+	bb->len = max_len;
+
+	switch (bb->type) {
+	case BACKED_BLOCK_DATA:
+		new_bb->data.data = (char *)bb->data.data + max_len;
+		break;
+	case BACKED_BLOCK_FILE:
+		new_bb->file.offset += max_len;
+		break;
+	case BACKED_BLOCK_FD:
+		new_bb->fd.offset += max_len;
+		break;
+	case BACKED_BLOCK_FILL:
+		break;
+	}
+
+	return 0;
+}
diff --git a/libsparse/backed_block.h b/libsparse/backed_block.h
new file mode 100644
index 0000000..1a159be
--- /dev/null
+++ b/libsparse/backed_block.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _BACKED_BLOCK_H_
+#define _BACKED_BLOCK_H_
+
+#include <stdint.h>
+
+struct backed_block_list;
+struct backed_block;
+
+enum backed_block_type {
+	BACKED_BLOCK_DATA,
+	BACKED_BLOCK_FILE,
+	BACKED_BLOCK_FD,
+	BACKED_BLOCK_FILL,
+};
+
+int backed_block_add_data(struct backed_block_list *bbl, void *data,
+		unsigned int len, unsigned int block);
+int backed_block_add_fill(struct backed_block_list *bbl, unsigned int fill_val,
+		unsigned int len, unsigned int block);
+int backed_block_add_file(struct backed_block_list *bbl, const char *filename,
+		int64_t offset, unsigned int len, unsigned int block);
+int backed_block_add_fd(struct backed_block_list *bbl, int fd,
+		int64_t offset, unsigned int len, unsigned int block);
+
+struct backed_block *backed_block_iter_new(struct backed_block_list *bbl);
+struct backed_block *backed_block_iter_next(struct backed_block *bb);
+unsigned int backed_block_len(struct backed_block *bb);
+unsigned int backed_block_block(struct backed_block *bb);
+void *backed_block_data(struct backed_block *bb);
+const char *backed_block_filename(struct backed_block *bb);
+int backed_block_fd(struct backed_block *bb);
+int64_t backed_block_file_offset(struct backed_block *bb);
+uint32_t backed_block_fill_val(struct backed_block *bb);
+enum backed_block_type backed_block_type(struct backed_block *bb);
+int backed_block_split(struct backed_block_list *bbl, struct backed_block *bb,
+		unsigned int max_len);
+
+struct backed_block *backed_block_iter_new(struct backed_block_list *bbl);
+struct backed_block *backed_block_iter_next(struct backed_block *bb);
+
+struct backed_block_list *backed_block_list_new(unsigned int block_size);
+void backed_block_list_destroy(struct backed_block_list *bbl);
+
+void backed_block_list_move(struct backed_block_list *from,
+		struct backed_block_list *to, struct backed_block *start,
+		struct backed_block *end);
+
+#endif
diff --git a/libsparse/img2simg.c b/libsparse/img2simg.c
new file mode 100644
index 0000000..6b1caa5
--- /dev/null
+++ b/libsparse/img2simg.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <sparse/sparse.h>
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define lseek64 lseek
+#define off64_t off_t
+#endif
+
+void usage()
+{
+    fprintf(stderr, "Usage: img2simg <raw_image_file> <sparse_image_file> [<block_size>]\n");
+}
+
+int main(int argc, char *argv[])
+{
+	int in;
+	int out;
+	unsigned int i;
+	int ret;
+	struct sparse_file *s;
+	unsigned int block_size = 4096;
+	off64_t len;
+
+	if (argc < 3 || argc > 4) {
+		usage();
+		exit(-1);
+	}
+
+	if (argc == 4) {
+		block_size = atoi(argv[3]);
+	}
+
+	if (block_size < 1024 || block_size % 4 != 0) {
+		usage();
+		exit(-1);
+	}
+
+	if (strcmp(argv[1], "-") == 0) {
+		in = STDIN_FILENO;
+	} else {
+		in = open(argv[1], O_RDONLY | O_BINARY);
+		if (in < 0) {
+			fprintf(stderr, "Cannot open input file %s\n", argv[1]);
+			exit(-1);
+		}
+	}
+
+	if (strcmp(argv[2], "-") == 0) {
+		out = STDOUT_FILENO;
+	} else {
+		out = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
+		if (out < 0) {
+			fprintf(stderr, "Cannot open output file %s\n", argv[2]);
+			exit(-1);
+		}
+	}
+
+	len = lseek64(in, 0, SEEK_END);
+	lseek64(in, 0, SEEK_SET);
+
+	s = sparse_file_new(block_size, len);
+	if (!s) {
+		fprintf(stderr, "Failed to create sparse file\n");
+		exit(-1);
+	}
+
+	sparse_file_verbose(s);
+	ret = sparse_file_read(s, in, false, false);
+	if (ret) {
+		fprintf(stderr, "Failed to read file\n");
+		exit(-1);
+	}
+
+	ret = sparse_file_write(s, out, false, true, false);
+	if (ret) {
+		fprintf(stderr, "Failed to write sparse file\n");
+		exit(-1);
+	}
+
+	close(in);
+	close(out);
+
+	exit(0);
+}
diff --git a/libsparse/include/sparse/sparse.h b/libsparse/include/sparse/sparse.h
new file mode 100644
index 0000000..17d085c
--- /dev/null
+++ b/libsparse/include/sparse/sparse.h
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBSPARSE_SPARSE_H_
+#define _LIBSPARSE_SPARSE_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+struct sparse_file;
+
+/**
+ * sparse_file_new - create a new sparse file cookie
+ *
+ * @block_size - minimum size of a chunk
+ * @len - size of the expanded sparse file.
+ *
+ * Creates a new sparse_file cookie that can be used to associate data
+ * blocks.  Can later be written to a file with a variety of options.
+ * block_size specifies the minimum size of a chunk in the file.  The maximum
+ * size of the file is 2**32 * block_size (16TB for 4k block size).
+ *
+ * Returns the sparse file cookie, or NULL on error.
+ */
+struct sparse_file *sparse_file_new(unsigned int block_size, int64_t len);
+
+/**
+ * sparse_file_destroy - destroy a sparse file cookie
+ *
+ * @s - sparse file cookie
+ *
+ * Destroys a sparse file cookie.  After destroy, all memory passed in to
+ * sparse_file_add_data can be freed by the caller
+ */
+void sparse_file_destroy(struct sparse_file *s);
+
+/**
+ * sparse_file_add_data - associate a data chunk with a sparse file
+ *
+ * @s - sparse file cookie
+ * @data - pointer to data block
+ * @len - length of the data block
+ * @block - offset in blocks into the sparse file to place the data chunk
+ *
+ * Associates a data chunk with a sparse file cookie.  The region
+ * [block * block_size : block * block_size + len) must not already be used in
+ * the sparse file. If len is not a multiple of the block size the data
+ * will be padded with zeros.
+ *
+ * The data pointer must remain valid until the sparse file is closed or the
+ * data block is removed from the sparse file.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_add_data(struct sparse_file *s,
+		void *data, unsigned int len, unsigned int block);
+
+/**
+ * sparse_file_add_fill - associate a fill chunk with a sparse file
+ *
+ * @s - sparse file cookie
+ * @fill_val - 32 bit fill data
+ * @len - length of the fill block
+ * @block - offset in blocks into the sparse file to place the fill chunk
+ *
+ * Associates a chunk filled with fill_val with a sparse file cookie.
+ * The region [block * block_size : block * block_size + len) must not already
+ * be used in the sparse file. If len is not a multiple of the block size the
+ * data will be padded with zeros.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_add_fill(struct sparse_file *s,
+		uint32_t fill_val, unsigned int len, unsigned int block);
+
+/**
+ * sparse_file_add_file - associate a chunk of a file with a sparse file
+ *
+ * @s - sparse file cookie
+ * @filename - filename of the file to be copied
+ * @file_offset - offset into the copied file
+ * @len - length of the copied block
+ * @block - offset in blocks into the sparse file to place the file chunk
+ *
+ * Associates a chunk of an existing file with a sparse file cookie.
+ * The region [block * block_size : block * block_size + len) must not already
+ * be used in the sparse file. If len is not a multiple of the block size the
+ * data will be padded with zeros.
+ *
+ * Allows adding large amounts of data to a sparse file without needing to keep
+ * it all mapped.  File size is limited by available virtual address space,
+ * exceptionally large files may need to be added in multiple chunks.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_add_file(struct sparse_file *s,
+		const char *filename, int64_t file_offset, unsigned int len,
+		unsigned int block);
+
+/**
+ * sparse_file_add_file - associate a chunk of a file with a sparse file
+ *
+ * @s - sparse file cookie
+ * @filename - filename of the file to be copied
+ * @file_offset - offset into the copied file
+ * @len - length of the copied block
+ * @block - offset in blocks into the sparse file to place the file chunk
+ *
+ * Associates a chunk of an existing fd with a sparse file cookie.
+ * The region [block * block_size : block * block_size + len) must not already
+ * be used in the sparse file. If len is not a multiple of the block size the
+ * data will be padded with zeros.
+ *
+ * Allows adding large amounts of data to a sparse file without needing to keep
+ * it all mapped.  File size is limited by available virtual address space,
+ * exceptionally large files may need to be added in multiple chunks.
+ *
+ * The fd must remain open until the sparse file is closed or the fd block is
+ * removed from the sparse file.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_add_fd(struct sparse_file *s,
+		int fd, int64_t file_offset, unsigned int len, unsigned int block);
+
+/**
+ * sparse_file_write - write a sparse file to a file
+ *
+ * @s - sparse file cookie
+ * @fd - file descriptor to write to
+ * @gz - write a gzipped file
+ * @sparse - write in the Android sparse file format
+ * @crc - append a crc chunk
+ *
+ * Writes a sparse file to a file.  If gz is true, the data will be passed
+ * through zlib.  If sparse is true, the file will be written in the Android
+ * sparse file format.  If sparse is false, the file will be written by seeking
+ * over unused chunks, producing a smaller file if the filesystem supports
+ * sparse files.  If crc is true, the crc of the expanded data will be
+ * calculated and appended in a crc chunk.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_write(struct sparse_file *s, int fd, bool gz, bool sparse,
+		bool crc);
+
+/**
+ * sparse_file_len - return the length of a sparse file if written to disk
+ *
+ * @s - sparse file cookie
+ * @sparse - write in the Android sparse file format
+ * @crc - append a crc chunk
+ *
+ * Returns the size a sparse file would be on disk if it were written in the
+ * specified format.  If sparse is true, this is the size of the data in the
+ * sparse format.  If sparse is false, this is the size of the normal
+ * non-sparse file.
+ */
+int64_t sparse_file_len(struct sparse_file *s, bool sparse, bool crc);
+
+/**
+ * sparse_file_callback - call a callback for blocks in sparse file
+ *
+ * @s - sparse file cookie
+ * @sparse - write in the Android sparse file format
+ * @crc - append a crc chunk
+ * @write - function to call for each block
+ * @priv - value that will be passed as the first argument to write
+ *
+ * Writes a sparse file by calling a callback function.  If sparse is true, the
+ * file will be written in the Android sparse file format.  If crc is true, the
+ * crc of the expanded data will be calculated and appended in a crc chunk.
+ * The callback 'write' will be called with data and length for each data,
+ * and with data==NULL to skip over a region (only used for non-sparse format).
+ * The callback should return negative on error, 0 on success.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_callback(struct sparse_file *s, bool sparse, bool crc,
+		int (*write)(void *priv, const void *data, int len), void *priv);
+
+/**
+ * sparse_file_read - read a file into a sparse file cookie
+ *
+ * @s - sparse file cookie
+ * @fd - file descriptor to read from
+ * @sparse - read a file in the Android sparse file format
+ * @crc - verify the crc of a file in the Android sparse file format
+ *
+ * Reads a file into a sparse file cookie.  If sparse is true, the file is
+ * assumed to be in the Android sparse file format.  If sparse is false, the
+ * file will be sparsed by looking for block aligned chunks of all zeros or
+ * another 32 bit value.  If crc is true, the crc of the sparse file will be
+ * verified.
+ *
+ * Returns 0 on success, negative errno on error.
+ */
+int sparse_file_read(struct sparse_file *s, int fd, bool sparse, bool crc);
+
+/**
+ * sparse_file_import - import an existing sparse file
+ *
+ * @s - sparse file cookie
+ * @verbose - print verbose errors while reading the sparse file
+ * @crc - verify the crc of a file in the Android sparse file format
+ *
+ * Reads an existing sparse file into a sparse file cookie, recreating the same
+ * sparse cookie that was used to write it.  If verbose is true, prints verbose
+ * errors when the sparse file is formatted incorrectly.
+ *
+ * Returns a new sparse file cookie on success, NULL on error.
+ */
+struct sparse_file *sparse_file_import(int fd, bool verbose, bool crc);
+
+/**
+ * sparse_file_import_auto - import an existing sparse or normal file
+ *
+ * @fd - file descriptor to read from
+ * @crc - verify the crc of a file in the Android sparse file format
+ *
+ * Reads an existing sparse or normal file into a sparse file cookie.
+ * Attempts to determine if the file is sparse or not by looking for the sparse
+ * file magic number in the first 4 bytes.  If the file is not sparse, the file
+ * will be sparsed by looking for block aligned chunks of all zeros or another
+ * 32 bit value.  If crc is true, the crc of the sparse file will be verified.
+ *
+ * Returns a new sparse file cookie on success, NULL on error.
+ */
+struct sparse_file *sparse_file_import_auto(int fd, bool crc);
+
+/** sparse_file_resparse - rechunk an existing sparse file into smaller files
+ *
+ * @in_s - sparse file cookie of the existing sparse file
+ * @max_len - maximum file size
+ * @out_s - array of sparse file cookies
+ * @out_s_count - size of out_s array
+ *
+ * Splits chunks of an existing sparse file into smaller sparse files such that
+ * each sparse file is less than max_len.  Returns the number of sparse_files
+ * that would have been written to out_s if out_s were big enough.
+ */
+int sparse_file_resparse(struct sparse_file *in_s, unsigned int max_len,
+		struct sparse_file **out_s, int out_s_count);
+
+/**
+ * sparse_file_verbose - set a sparse file cookie to print verbose errors
+ *
+ * @s - sparse file cookie
+ *
+ * Print verbose sparse file errors whenever using the sparse file cookie.
+ */
+void sparse_file_verbose(struct sparse_file *s);
+
+/**
+ * sparse_print_verbose - function called to print verbose errors
+ *
+ * By default, verbose errors will print to standard error.
+ * sparse_print_verbose may be overridden to log verbose errors somewhere else.
+ *
+ */
+extern void (*sparse_print_verbose)(const char *fmt, ...);
+
+#endif
diff --git a/libsparse/output_file.c b/libsparse/output_file.c
new file mode 100644
index 0000000..b5ae419
--- /dev/null
+++ b/libsparse/output_file.c
@@ -0,0 +1,772 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <zlib.h>
+
+#include "output_file.h"
+#include "sparse_format.h"
+#include "sparse_crc32.h"
+
+#ifndef USE_MINGW
+#include <sys/mman.h>
+#define O_BINARY 0
+#else
+#define ftruncate64 ftruncate
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define lseek64 lseek
+#define ftruncate64 ftruncate
+#define mmap64 mmap
+#define off64_t off_t
+#endif
+
+#ifdef __BIONIC__
+extern void*  __mmap2(void *, size_t, int, int, int, off_t);
+static inline void *mmap64(void *addr, size_t length, int prot, int flags,
+        int fd, off64_t offset)
+{
+    return __mmap2(addr, length, prot, flags, fd, offset >> 12);
+}
+#endif
+
+#define min(a, b) \
+	({ typeof(a) _a = (a); typeof(b) _b = (b); (_a < _b) ? _a : _b; })
+
+#define SPARSE_HEADER_MAJOR_VER 1
+#define SPARSE_HEADER_MINOR_VER 0
+#define SPARSE_HEADER_LEN       (sizeof(sparse_header_t))
+#define CHUNK_HEADER_LEN (sizeof(chunk_header_t))
+
+#define container_of(inner, outer_t, elem) \
+	((outer_t *)((char *)inner - offsetof(outer_t, elem)))
+
+struct output_file_ops {
+	int (*open)(struct output_file *, int fd);
+	int (*skip)(struct output_file *, int64_t);
+	int (*pad)(struct output_file *, int64_t);
+	int (*write)(struct output_file *, void *, int);
+	void (*close)(struct output_file *);
+};
+
+struct sparse_file_ops {
+	int (*write_data_chunk)(struct output_file *out, unsigned int len,
+			void *data);
+	int (*write_fill_chunk)(struct output_file *out, unsigned int len,
+			uint32_t fill_val);
+	int (*write_skip_chunk)(struct output_file *out, int64_t len);
+	int (*write_end_chunk)(struct output_file *out);
+};
+
+struct output_file {
+	int64_t cur_out_ptr;
+	unsigned int chunk_cnt;
+	uint32_t crc32;
+	struct output_file_ops *ops;
+	struct sparse_file_ops *sparse_ops;
+	int use_crc;
+	unsigned int block_size;
+	int64_t len;
+	char *zero_buf;
+	uint32_t *fill_buf;
+	char *buf;
+};
+
+struct output_file_gz {
+	struct output_file out;
+	gzFile gz_fd;
+};
+
+#define to_output_file_gz(_o) \
+	container_of((_o), struct output_file_gz, out)
+
+struct output_file_normal {
+	struct output_file out;
+	int fd;
+};
+
+#define to_output_file_normal(_o) \
+	container_of((_o), struct output_file_normal, out)
+
+struct output_file_callback {
+	struct output_file out;
+	void *priv;
+	int (*write)(void *priv, const void *buf, int len);
+};
+
+#define to_output_file_callback(_o) \
+	container_of((_o), struct output_file_callback, out)
+
+static int file_open(struct output_file *out, int fd)
+{
+	struct output_file_normal *outn = to_output_file_normal(out);
+
+	outn->fd = fd;
+	return 0;
+}
+
+static int file_skip(struct output_file *out, int64_t cnt)
+{
+	off64_t ret;
+	struct output_file_normal *outn = to_output_file_normal(out);
+
+	ret = lseek64(outn->fd, cnt, SEEK_CUR);
+	if (ret < 0) {
+		error_errno("lseek64");
+		return -1;
+	}
+	return 0;
+}
+
+static int file_pad(struct output_file *out, int64_t len)
+{
+	int ret;
+	struct output_file_normal *outn = to_output_file_normal(out);
+
+	ret = ftruncate64(outn->fd, len);
+	if (ret < 0) {
+		return -errno;
+	}
+
+	return 0;
+}
+
+static int file_write(struct output_file *out, void *data, int len)
+{
+	int ret;
+	struct output_file_normal *outn = to_output_file_normal(out);
+
+	ret = write(outn->fd, data, len);
+	if (ret < 0) {
+		error_errno("write");
+		return -1;
+	} else if (ret < len) {
+		error("incomplete write");
+		return -1;
+	}
+
+	return 0;
+}
+
+static void file_close(struct output_file *out)
+{
+	struct output_file_normal *outn = to_output_file_normal(out);
+
+	free(outn);
+}
+
+static struct output_file_ops file_ops = {
+	.open = file_open,
+	.skip = file_skip,
+	.pad = file_pad,
+	.write = file_write,
+	.close = file_close,
+};
+
+static int gz_file_open(struct output_file *out, int fd)
+{
+	struct output_file_gz *outgz = to_output_file_gz(out);
+
+	outgz->gz_fd = gzdopen(fd, "wb9");
+	if (!outgz->gz_fd) {
+		error_errno("gzopen");
+		return -errno;
+	}
+
+	return 0;
+}
+
+
+static int gz_file_skip(struct output_file *out, int64_t cnt)
+{
+	off64_t ret;
+	struct output_file_gz *outgz = to_output_file_gz(out);
+
+	ret = gzseek(outgz->gz_fd, cnt, SEEK_CUR);
+	if (ret < 0) {
+		error_errno("gzseek");
+		return -1;
+	}
+	return 0;
+}
+
+static int gz_file_pad(struct output_file *out, int64_t len)
+{
+	off64_t ret;
+	struct output_file_gz *outgz = to_output_file_gz(out);
+
+	ret = gztell(outgz->gz_fd);
+	if (ret < 0) {
+		return -1;
+	}
+
+	if (ret >= len) {
+		return 0;
+	}
+
+	ret = gzseek(outgz->gz_fd, len - 1, SEEK_SET);
+	if (ret < 0) {
+		return -1;
+	}
+
+	gzwrite(outgz->gz_fd, "", 1);
+
+	return 0;
+}
+
+static int gz_file_write(struct output_file *out, void *data, int len)
+{
+	int ret;
+	struct output_file_gz *outgz = to_output_file_gz(out);
+
+	ret = gzwrite(outgz->gz_fd, data, len);
+	if (ret < 0) {
+		error_errno("gzwrite");
+		return -1;
+	} else if (ret < len) {
+		error("incomplete gzwrite");
+		return -1;
+	}
+
+	return 0;
+}
+
+static void gz_file_close(struct output_file *out)
+{
+	struct output_file_gz *outgz = to_output_file_gz(out);
+
+	gzclose(outgz->gz_fd);
+	free(outgz);
+}
+
+static struct output_file_ops gz_file_ops = {
+	.open = gz_file_open,
+	.skip = gz_file_skip,
+	.pad = gz_file_pad,
+	.write = gz_file_write,
+	.close = gz_file_close,
+};
+
+static int callback_file_open(struct output_file *out, int fd)
+{
+	return 0;
+}
+
+static int callback_file_skip(struct output_file *out, int64_t off)
+{
+	struct output_file_callback *outc = to_output_file_callback(out);
+	int to_write;
+	int ret;
+
+	while (off > 0) {
+		to_write = min(off, (int64_t)INT_MAX);
+		ret = outc->write(outc->priv, NULL, to_write);
+		if (ret < 0) {
+			return ret;
+		}
+		off -= to_write;
+	}
+
+	return 0;
+}
+
+static int callback_file_pad(struct output_file *out, int64_t len)
+{
+	return -1;
+}
+
+static int callback_file_write(struct output_file *out, void *data, int len)
+{
+	int ret;
+	struct output_file_callback *outc = to_output_file_callback(out);
+
+	return outc->write(outc->priv, data, len);
+}
+
+static void callback_file_close(struct output_file *out)
+{
+	struct output_file_callback *outc = to_output_file_callback(out);
+
+	free(outc);
+}
+
+static struct output_file_ops callback_file_ops = {
+	.open = callback_file_open,
+	.skip = callback_file_skip,
+	.pad = callback_file_pad,
+	.write = callback_file_write,
+	.close = callback_file_close,
+};
+
+int read_all(int fd, void *buf, size_t len)
+{
+	size_t total = 0;
+	int ret;
+	char *ptr = buf;
+
+	while (total < len) {
+		ret = read(fd, ptr, len - total);
+
+		if (ret < 0)
+			return -errno;
+
+		if (ret == 0)
+			return -EINVAL;
+
+		ptr += ret;
+		total += ret;
+	}
+
+	return 0;
+}
+
+static int write_sparse_skip_chunk(struct output_file *out, int64_t skip_len)
+{
+	chunk_header_t chunk_header;
+	int ret, chunk;
+
+	if (skip_len % out->block_size) {
+		error("don't care size %llu is not a multiple of the block size %u",
+				skip_len, out->block_size);
+		return -1;
+	}
+
+	/* We are skipping data, so emit a don't care chunk. */
+	chunk_header.chunk_type = CHUNK_TYPE_DONT_CARE;
+	chunk_header.reserved1 = 0;
+	chunk_header.chunk_sz = skip_len / out->block_size;
+	chunk_header.total_sz = CHUNK_HEADER_LEN;
+	ret = out->ops->write(out, &chunk_header, sizeof(chunk_header));
+	if (ret < 0)
+		return -1;
+
+	out->cur_out_ptr += skip_len;
+	out->chunk_cnt++;
+
+	return 0;
+}
+
+static int write_sparse_fill_chunk(struct output_file *out, unsigned int len,
+		uint32_t fill_val)
+{
+	chunk_header_t chunk_header;
+	int rnd_up_len, zero_len, count;
+	int ret;
+	unsigned int i;
+
+	/* Round up the fill length to a multiple of the block size */
+	rnd_up_len = ALIGN(len, out->block_size);
+
+	/* Finally we can safely emit a chunk of data */
+	chunk_header.chunk_type = CHUNK_TYPE_FILL;
+	chunk_header.reserved1 = 0;
+	chunk_header.chunk_sz = rnd_up_len / out->block_size;
+	chunk_header.total_sz = CHUNK_HEADER_LEN + sizeof(fill_val);
+	ret = out->ops->write(out, &chunk_header, sizeof(chunk_header));
+
+	if (ret < 0)
+		return -1;
+	ret = out->ops->write(out, &fill_val, sizeof(fill_val));
+	if (ret < 0)
+		return -1;
+
+	if (out->use_crc) {
+		count = out->block_size / sizeof(uint32_t);
+		while (count--)
+			out->crc32 = sparse_crc32(out->crc32, &fill_val, sizeof(uint32_t));
+	}
+
+	out->cur_out_ptr += rnd_up_len;
+	out->chunk_cnt++;
+
+	return 0;
+}
+
+static int write_sparse_data_chunk(struct output_file *out, unsigned int len,
+		void *data)
+{
+	chunk_header_t chunk_header;
+	int rnd_up_len, zero_len;
+	int ret;
+
+	/* Round up the data length to a multiple of the block size */
+	rnd_up_len = ALIGN(len, out->block_size);
+	zero_len = rnd_up_len - len;
+
+	/* Finally we can safely emit a chunk of data */
+	chunk_header.chunk_type = CHUNK_TYPE_RAW;
+	chunk_header.reserved1 = 0;
+	chunk_header.chunk_sz = rnd_up_len / out->block_size;
+	chunk_header.total_sz = CHUNK_HEADER_LEN + rnd_up_len;
+	ret = out->ops->write(out, &chunk_header, sizeof(chunk_header));
+
+	if (ret < 0)
+		return -1;
+	ret = out->ops->write(out, data, len);
+	if (ret < 0)
+		return -1;
+	if (zero_len) {
+		ret = out->ops->write(out, out->zero_buf, zero_len);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (out->use_crc) {
+		out->crc32 = sparse_crc32(out->crc32, data, len);
+		if (zero_len)
+			out->crc32 = sparse_crc32(out->crc32, out->zero_buf, zero_len);
+	}
+
+	out->cur_out_ptr += rnd_up_len;
+	out->chunk_cnt++;
+
+	return 0;
+}
+
+int write_sparse_end_chunk(struct output_file *out)
+{
+	chunk_header_t chunk_header;
+	int ret;
+
+	if (out->use_crc) {
+		chunk_header.chunk_type = CHUNK_TYPE_CRC32;
+		chunk_header.reserved1 = 0;
+		chunk_header.chunk_sz = 0;
+		chunk_header.total_sz = CHUNK_HEADER_LEN + 4;
+
+		ret = out->ops->write(out, &chunk_header, sizeof(chunk_header));
+		if (ret < 0) {
+			return ret;
+		}
+		out->ops->write(out, &out->crc32, 4);
+		if (ret < 0) {
+			return ret;
+		}
+
+		out->chunk_cnt++;
+	}
+
+	return 0;
+}
+
+static struct sparse_file_ops sparse_file_ops = {
+		.write_data_chunk = write_sparse_data_chunk,
+		.write_fill_chunk = write_sparse_fill_chunk,
+		.write_skip_chunk = write_sparse_skip_chunk,
+		.write_end_chunk = write_sparse_end_chunk,
+};
+
+static int write_normal_data_chunk(struct output_file *out, unsigned int len,
+		void *data)
+{
+	int ret;
+	unsigned int rnd_up_len = ALIGN(len, out->block_size);
+
+	ret = out->ops->write(out, data, len);
+	if (ret < 0) {
+		return ret;
+	}
+
+	if (rnd_up_len > len) {
+		ret = out->ops->skip(out, rnd_up_len - len);
+	}
+
+	return ret;
+}
+
+static int write_normal_fill_chunk(struct output_file *out, unsigned int len,
+		uint32_t fill_val)
+{
+	int ret;
+	unsigned int i;
+	unsigned int write_len;
+
+	/* Initialize fill_buf with the fill_val */
+	for (i = 0; i < out->block_size / sizeof(uint32_t); i++) {
+		out->fill_buf[i] = fill_val;
+	}
+
+	while (len) {
+		write_len = min(len, out->block_size);
+		ret = out->ops->write(out, out->fill_buf, write_len);
+		if (ret < 0) {
+			return ret;
+		}
+
+		len -= write_len;
+	}
+
+	return 0;
+}
+
+static int write_normal_skip_chunk(struct output_file *out, int64_t len)
+{
+	return out->ops->skip(out, len);
+}
+
+int write_normal_end_chunk(struct output_file *out)
+{
+	return out->ops->pad(out, out->len);
+}
+
+static struct sparse_file_ops normal_file_ops = {
+		.write_data_chunk = write_normal_data_chunk,
+		.write_fill_chunk = write_normal_fill_chunk,
+		.write_skip_chunk = write_normal_skip_chunk,
+		.write_end_chunk = write_normal_end_chunk,
+};
+
+void output_file_close(struct output_file *out)
+{
+	int ret;
+
+	out->sparse_ops->write_end_chunk(out);
+	out->ops->close(out);
+}
+
+static int output_file_init(struct output_file *out, int block_size,
+		int64_t len, bool sparse, int chunks, bool crc)
+{
+	int ret;
+
+	out->len = len;
+	out->block_size = block_size;
+	out->cur_out_ptr = 0ll;
+	out->chunk_cnt = 0;
+	out->crc32 = 0;
+	out->use_crc = crc;
+
+	out->zero_buf = calloc(block_size, 1);
+	if (!out->zero_buf) {
+		error_errno("malloc zero_buf");
+		return -ENOMEM;
+	}
+
+	out->fill_buf = calloc(block_size, 1);
+	if (!out->fill_buf) {
+		error_errno("malloc fill_buf");
+		ret = -ENOMEM;
+		goto err_fill_buf;
+	}
+
+	if (sparse) {
+		out->sparse_ops = &sparse_file_ops;
+	} else {
+		out->sparse_ops = &normal_file_ops;
+	}
+
+	if (sparse) {
+		sparse_header_t sparse_header = {
+				.magic = SPARSE_HEADER_MAGIC,
+				.major_version = SPARSE_HEADER_MAJOR_VER,
+				.minor_version = SPARSE_HEADER_MINOR_VER,
+				.file_hdr_sz = SPARSE_HEADER_LEN,
+				.chunk_hdr_sz = CHUNK_HEADER_LEN,
+				.blk_sz = out->block_size,
+				.total_blks = out->len / out->block_size,
+				.total_chunks = chunks,
+				.image_checksum = 0
+		};
+
+		if (out->use_crc) {
+			sparse_header.total_chunks++;
+		}
+
+		ret = out->ops->write(out, &sparse_header, sizeof(sparse_header));
+		if (ret < 0) {
+			goto err_write;
+		}
+	}
+
+	return 0;
+
+err_write:
+	free(out->fill_buf);
+err_fill_buf:
+	free(out->zero_buf);
+	return ret;
+}
+
+static struct output_file *output_file_new_gz(void)
+{
+	struct output_file_gz *outgz = calloc(1, sizeof(struct output_file_gz));
+	if (!outgz) {
+		error_errno("malloc struct outgz");
+		return NULL;
+	}
+
+	outgz->out.ops = &gz_file_ops;
+
+	return &outgz->out;
+}
+
+static struct output_file *output_file_new_normal(void)
+{
+	struct output_file_normal *outn = calloc(1, sizeof(struct output_file_normal));
+	if (!outn) {
+		error_errno("malloc struct outn");
+		return NULL;
+	}
+
+	outn->out.ops = &file_ops;
+
+	return &outn->out;
+}
+
+struct output_file *output_file_open_callback(int (*write)(void *, const void *, int),
+		void *priv, unsigned int block_size, int64_t len, int gz, int sparse,
+		int chunks, int crc)
+{
+	int ret;
+	struct output_file_callback *outc;
+
+	outc = calloc(1, sizeof(struct output_file_callback));
+	if (!outc) {
+		error_errno("malloc struct outc");
+		return NULL;
+	}
+
+	outc->out.ops = &callback_file_ops;
+	outc->priv = priv;
+	outc->write = write;
+
+	ret = output_file_init(&outc->out, block_size, len, sparse, chunks, crc);
+	if (ret < 0) {
+		free(outc);
+		return NULL;
+	}
+
+	return &outc->out;
+}
+
+struct output_file *output_file_open_fd(int fd, unsigned int block_size, int64_t len,
+		int gz, int sparse, int chunks, int crc)
+{
+	int ret;
+	struct output_file *out;
+
+	if (gz) {
+		out = output_file_new_gz();
+	} else {
+		out = output_file_new_normal();
+	}
+
+	out->ops->open(out, fd);
+
+	ret = output_file_init(out, block_size, len, sparse, chunks, crc);
+	if (ret < 0) {
+		free(out);
+		return NULL;
+	}
+
+	return out;
+}
+
+/* Write a contiguous region of data blocks from a memory buffer */
+int write_data_chunk(struct output_file *out, unsigned int len, void *data)
+{
+	return out->sparse_ops->write_data_chunk(out, len, data);
+}
+
+/* Write a contiguous region of data blocks with a fill value */
+int write_fill_chunk(struct output_file *out, unsigned int len,
+		uint32_t fill_val)
+{
+	return out->sparse_ops->write_fill_chunk(out, len, fill_val);
+}
+
+int write_fd_chunk(struct output_file *out, unsigned int len,
+		int fd, int64_t offset)
+{
+	int ret;
+	int64_t aligned_offset;
+	int aligned_diff;
+	int buffer_size;
+	char *ptr;
+
+	aligned_offset = offset & ~(4096 - 1);
+	aligned_diff = offset - aligned_offset;
+	buffer_size = len + aligned_diff;
+
+#ifndef USE_MINGW
+	char *data = mmap64(NULL, buffer_size, PROT_READ, MAP_SHARED, fd,
+			aligned_offset);
+	if (data == MAP_FAILED) {
+		return -errno;
+	}
+	ptr = data + aligned_diff;
+#else
+	off64_t pos;
+	char *data = malloc(len);
+	if (!data) {
+		return -errno;
+	}
+	pos = lseek64(fd, offset, SEEK_SET);
+	if (pos < 0) {
+		return -errno;
+	}
+	ret = read_all(fd, data, len);
+	if (ret < 0) {
+		return ret;
+	}
+	ptr = data;
+#endif
+
+	ret = out->sparse_ops->write_data_chunk(out, len, ptr);
+
+#ifndef USE_MINGW
+	munmap(data, buffer_size);
+#else
+	free(data);
+#endif
+
+	return ret;
+}
+
+/* Write a contiguous region of data blocks from a file */
+int write_file_chunk(struct output_file *out, unsigned int len,
+		const char *file, int64_t offset)
+{
+	int ret;
+
+	int file_fd = open(file, O_RDONLY | O_BINARY);
+	if (file_fd < 0) {
+		return -errno;
+	}
+
+	ret = write_fd_chunk(out, len, file_fd, offset);
+
+	close(file_fd);
+
+	return ret;
+}
+
+int write_skip_chunk(struct output_file *out, int64_t len)
+{
+	return out->sparse_ops->write_skip_chunk(out, len);
+}
diff --git a/libsparse/output_file.h b/libsparse/output_file.h
new file mode 100644
index 0000000..474c1fc
--- /dev/null
+++ b/libsparse/output_file.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _OUTPUT_FILE_H_
+#define _OUTPUT_FILE_H_
+
+#include <sparse/sparse.h>
+
+struct output_file;
+
+struct output_file *output_file_open_fd(int fd, unsigned int block_size, int64_t len,
+		int gz, int sparse, int chunks, int crc);
+struct output_file *output_file_open_callback(int (*write)(void *, const void *, int),
+		void *priv, unsigned int block_size, int64_t len, int gz, int sparse,
+		int chunks, int crc);
+int write_data_chunk(struct output_file *out, unsigned int len, void *data);
+int write_fill_chunk(struct output_file *out, unsigned int len,
+		uint32_t fill_val);
+int write_file_chunk(struct output_file *out, unsigned int len,
+		const char *file, int64_t offset);
+int write_fd_chunk(struct output_file *out, unsigned int len,
+		int fd, int64_t offset);
+int write_skip_chunk(struct output_file *out, int64_t len);
+void output_file_close(struct output_file *out);
+
+int read_all(int fd, void *buf, size_t len);
+
+#endif
diff --git a/libsparse/simg2img.c b/libsparse/simg2img.c
new file mode 100644
index 0000000..95e9b5b
--- /dev/null
+++ b/libsparse/simg2img.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sparse/sparse.h>
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+void usage()
+{
+  fprintf(stderr, "Usage: simg2img <sparse_image_files> <raw_image_file>\n");
+}
+
+int main(int argc, char *argv[])
+{
+	int in;
+	int out;
+	int i;
+	int ret;
+	struct sparse_file *s;
+
+	if (argc < 3) {
+		usage();
+		exit(-1);
+	}
+
+	out = open(argv[argc - 1], O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
+	if (out < 0) {
+		fprintf(stderr, "Cannot open output file %s\n", argv[argc - 1]);
+		exit(-1);
+	}
+
+	for (i = 1; i < argc - 1; i++) {
+		if (strcmp(argv[i], "-") == 0) {
+			in = STDIN_FILENO;
+		} else {
+			in = open(argv[i], O_RDONLY | O_BINARY);
+			if (in < 0) {
+				fprintf(stderr, "Cannot open input file %s\n", argv[i]);
+				exit(-1);
+			}
+		}
+
+		s = sparse_file_import(in, true, false);
+		if (!s) {
+			fprintf(stderr, "Failed to read sparse file\n");
+			exit(-1);
+		}
+
+		lseek(out, SEEK_SET, 0);
+
+		ret = sparse_file_write(s, out, false, false, false);
+		if (ret < 0) {
+			fprintf(stderr, "Cannot write output file\n");
+			exit(-1);
+		}
+		sparse_file_destroy(s);
+		close(in);
+	}
+
+	close(out);
+
+	exit(0);
+}
+
diff --git a/libsparse/simg2simg.c b/libsparse/simg2simg.c
new file mode 100644
index 0000000..5f9ccf6
--- /dev/null
+++ b/libsparse/simg2simg.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+#define _GNU_SOURCE
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <sparse/sparse.h>
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+void usage()
+{
+  fprintf(stderr, "Usage: simg2simg <sparse image file> <sparse_image_file> <max_size>\n");
+}
+
+int main(int argc, char *argv[])
+{
+	int in;
+	int out;
+	int i;
+	int ret;
+	struct sparse_file *s;
+	int64_t max_size;
+	struct sparse_file **out_s;
+	int files;
+	char filename[4096];
+
+	if (argc != 4) {
+		usage();
+		exit(-1);
+	}
+
+	max_size = atoll(argv[3]);
+
+	in = open(argv[1], O_RDONLY | O_BINARY);
+	if (in < 0) {
+		fprintf(stderr, "Cannot open input file %s\n", argv[1]);
+		exit(-1);
+	}
+
+	s = sparse_file_import(in, true, false);
+	if (!s) {
+		fprintf(stderr, "Failed to import sparse file\n");
+		exit(-1);
+	}
+
+	files = sparse_file_resparse(s, max_size, NULL, 0);
+	if (files < 0) {
+		fprintf(stderr, "Failed to resparse\n");
+		exit(-1);
+	}
+
+	out_s = calloc(sizeof(struct sparse_file *), files);
+	if (!out_s) {
+		fprintf(stderr, "Failed to allocate sparse file array\n");
+		exit(-1);
+	}
+
+	files = sparse_file_resparse(s, max_size, out_s, files);
+	if (files < 0) {
+		fprintf(stderr, "Failed to resparse\n");
+		exit(-1);
+	}
+
+	for (i = 0; i < files; i++) {
+		ret = snprintf(filename, sizeof(filename), "%s.%d", argv[2], i);
+		if (ret >= (int)sizeof(filename)) {
+			fprintf(stderr, "Filename too long\n");
+			exit(-1);
+		}
+
+		out = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
+		if (out < 0) {
+			fprintf(stderr, "Cannot open output file %s\n", argv[2]);
+			exit(-1);
+		}
+
+		ret = sparse_file_write(out_s[i], out, false, true, false);
+		if (ret) {
+			fprintf(stderr, "Failed to write sparse file\n");
+			exit(-1);
+		}
+		close(out);
+	}
+
+	close(in);
+
+	exit(0);
+}
diff --git a/libsparse/simg_dump.py b/libsparse/simg_dump.py
new file mode 100755
index 0000000..6ece31d
--- /dev/null
+++ b/libsparse/simg_dump.py
@@ -0,0 +1,169 @@
+#! /usr/bin/env python
+
+# Copyright (C) 2012 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+import getopt, posixpath, signal, struct, sys
+
+def usage(argv0):
+  print("""
+Usage: %s [-v] sparse_image_file ...
+ -v             verbose output
+""" % ( argv0 ))
+  sys.exit(2)
+
+def main():
+
+  signal.signal(signal.SIGPIPE, signal.SIG_DFL)
+
+  me = posixpath.basename(sys.argv[0])
+
+  # Parse the command line
+  verbose = 0			# -v
+  try:
+    opts, args = getopt.getopt(sys.argv[1:],
+                               "v",
+                               ["verbose"])
+  except getopt.GetoptError, e:
+    print(e)
+    usage(me)
+  for o, a in opts:
+    if o in ("-v", "--verbose"):
+      verbose += 1
+    else:
+      print("Unrecognized option \"%s\"" % (o))
+      usage(me)
+
+  if len(args) == 0:
+    print("No sparse_image_file specified")
+    usage(me)
+
+  for path in args:
+    FH = open(path, 'rb')
+    header_bin = FH.read(28)
+    header = struct.unpack("<I4H4I", header_bin)
+
+    magic = header[0]
+    major_version = header[1]
+    minor_version = header[2]
+    file_hdr_sz = header[3]
+    chunk_hdr_sz = header[4]
+    blk_sz = header[5]
+    total_blks = header[6]
+    total_chunks = header[7]
+    image_checksum = header[8]
+
+    if magic != 0xED26FF3A:
+      print("%s: %s: Magic should be 0xED26FF3A but is 0x%08X"
+            % (me, path, magic))
+      continue
+    if major_version != 1 or minor_version != 0:
+      print("%s: %s: I only know about version 1.0, but this is version %u.%u"
+            % (me, path, major_version, minor_version))
+      continue
+    if file_hdr_sz != 28:
+      print("%s: %s: The file header size was expected to be 28, but is %u."
+            % (me, path, file_hdr_sz))
+      continue
+    if chunk_hdr_sz != 12:
+      print("%s: %s: The chunk header size was expected to be 12, but is %u."
+            % (me, path, chunk_hdr_sz))
+      continue
+
+    print("%s: Total of %u %u-byte output blocks in %u input chunks."
+          % (path, total_blks, blk_sz, total_chunks))
+
+    if image_checksum != 0:
+      print("checksum=0x%08X" % (image_checksum))
+
+    if not verbose:
+      continue
+    print("            input_bytes      output_blocks")
+    print("chunk    offset     number  offset  number")
+    offset = 0
+    for i in xrange(1,total_chunks+1):
+      header_bin = FH.read(12)
+      header = struct.unpack("<2H2I", header_bin)
+      chunk_type = header[0]
+      reserved1 = header[1]
+      chunk_sz = header[2]
+      total_sz = header[3]
+      data_sz = total_sz - 12
+
+      print("%4u %10u %10u %7u %7u" % (i, FH.tell(), data_sz, offset, chunk_sz),
+            end=" ")
+
+      if chunk_type == 0xCAC1:
+        if data_sz != (chunk_sz * blk_sz):
+          print("Raw chunk input size (%u) does not match output size (%u)"
+                % (data_sz, chunk_sz * blk_sz))
+          break;
+        else:
+          print("Raw data", end="")
+          FH.read(data_sz)
+      elif chunk_type == 0xCAC2:
+        if data_sz != 4:
+          print("Fill chunk should have 4 bytes of fill, but this has %u"
+                % (data_sz), end="")
+          break;
+        else:
+          fill_bin = FH.read(4)
+          fill = struct.unpack("<I", fill_bin)
+          print("Fill with 0x%08X" % (fill))
+      elif chunk_type == 0xCAC3:
+        if data_sz != 0:
+          print("Don't care chunk input size is non-zero (%u)" % (data_sz))
+          break;
+        else:
+          print("Don't care", end="")
+      elif chunk_type == 0xCAC4:
+        if data_sz != 4:
+          print("CRC32 chunk should have 4 bytes of CRC, but this has %u"
+                % (data_sz), end="")
+          break;
+        else:
+          crc_bin = FH.read(4)
+          crc = struct.unpack("<I", crc)
+          print("Unverified CRC32 0x%08X" % (crc))
+      else:
+          print("Unknown chunk type 0x%04X" % (chunk_type), end="")
+          break;
+
+      if verbose > 1:
+        header = struct.unpack("<12B", header_bin)
+        print(" (%02X%02X %02X%02X %02X%02X%02X%02X %02X%02X%02X%02X)"
+              % (header[0], header[1], header[2], header[3],
+                 header[4], header[5], header[6], header[7],
+                 header[8], header[9], header[10], header[11]))
+      else:
+        print()
+
+      offset += chunk_sz
+
+    print("     %10u            %7u         End" % (FH.tell(), offset))
+
+    if total_blks != offset:
+      print("The header said we should have %u output blocks, but we saw %u"
+            % (total_blks, offset))
+
+    junk_len = len(FH.read())
+    if junk_len:
+      print("There were %u bytes of extra data at the end of the file."
+            % (junk_len))
+
+  sys.exit(0)
+
+if __name__ == "__main__":
+  main()
diff --git a/libsparse/sparse.c b/libsparse/sparse.c
new file mode 100644
index 0000000..741e8c6
--- /dev/null
+++ b/libsparse/sparse.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include <sparse/sparse.h>
+
+#include "sparse_file.h"
+
+#include "output_file.h"
+#include "backed_block.h"
+#include "sparse_defs.h"
+#include "sparse_format.h"
+
+struct sparse_file *sparse_file_new(unsigned int block_size, int64_t len)
+{
+	struct sparse_file *s = calloc(sizeof(struct sparse_file), 1);
+	if (!s) {
+		return NULL;
+	}
+
+	s->backed_block_list = backed_block_list_new(block_size);
+	if (!s->backed_block_list) {
+		free(s);
+		return NULL;
+	}
+
+	s->block_size = block_size;
+	s->len = len;
+
+	return s;
+}
+
+void sparse_file_destroy(struct sparse_file *s)
+{
+	backed_block_list_destroy(s->backed_block_list);
+	free(s);
+}
+
+int sparse_file_add_data(struct sparse_file *s,
+		void *data, unsigned int len, unsigned int block)
+{
+	return backed_block_add_data(s->backed_block_list, data, len, block);
+}
+
+int sparse_file_add_fill(struct sparse_file *s,
+		uint32_t fill_val, unsigned int len, unsigned int block)
+{
+	return backed_block_add_fill(s->backed_block_list, fill_val, len, block);
+}
+
+int sparse_file_add_file(struct sparse_file *s,
+		const char *filename, int64_t file_offset, unsigned int len,
+		unsigned int block)
+{
+	return backed_block_add_file(s->backed_block_list, filename, file_offset,
+			len, block);
+}
+
+int sparse_file_add_fd(struct sparse_file *s,
+		int fd, int64_t file_offset, unsigned int len, unsigned int block)
+{
+	return backed_block_add_fd(s->backed_block_list, fd, file_offset,
+			len, block);
+}
+unsigned int sparse_count_chunks(struct sparse_file *s)
+{
+	struct backed_block *bb;
+	unsigned int last_block = 0;
+	unsigned int chunks = 0;
+
+	for (bb = backed_block_iter_new(s->backed_block_list); bb;
+			bb = backed_block_iter_next(bb)) {
+		if (backed_block_block(bb) > last_block) {
+			/* If there is a gap between chunks, add a skip chunk */
+			chunks++;
+		}
+		chunks++;
+		last_block = backed_block_block(bb) +
+				DIV_ROUND_UP(backed_block_len(bb), s->block_size);
+	}
+	if (last_block < DIV_ROUND_UP(s->len, s->block_size)) {
+		chunks++;
+	}
+
+	return chunks;
+}
+
+static void sparse_file_write_block(struct output_file *out,
+		struct backed_block *bb)
+{
+	switch (backed_block_type(bb)) {
+	case BACKED_BLOCK_DATA:
+		write_data_chunk(out, backed_block_len(bb), backed_block_data(bb));
+		break;
+	case BACKED_BLOCK_FILE:
+		write_file_chunk(out, backed_block_len(bb),
+				backed_block_filename(bb), backed_block_file_offset(bb));
+		break;
+	case BACKED_BLOCK_FD:
+		write_fd_chunk(out, backed_block_len(bb),
+				backed_block_fd(bb), backed_block_file_offset(bb));
+		break;
+	case BACKED_BLOCK_FILL:
+		write_fill_chunk(out, backed_block_len(bb),
+				backed_block_fill_val(bb));
+		break;
+	}
+}
+
+static int write_all_blocks(struct sparse_file *s, struct output_file *out)
+{
+	struct backed_block *bb;
+	unsigned int last_block = 0;
+	int64_t pad;
+
+	for (bb = backed_block_iter_new(s->backed_block_list); bb;
+			bb = backed_block_iter_next(bb)) {
+		if (backed_block_block(bb) > last_block) {
+			unsigned int blocks = backed_block_block(bb) - last_block;
+			write_skip_chunk(out, (int64_t)blocks * s->block_size);
+		}
+		sparse_file_write_block(out, bb);
+		last_block = backed_block_block(bb) +
+				DIV_ROUND_UP(backed_block_len(bb), s->block_size);
+	}
+
+	pad = s->len - (int64_t)last_block * s->block_size;
+	assert(pad >= 0);
+	if (pad > 0) {
+		write_skip_chunk(out, pad);
+	}
+
+	return 0;
+}
+
+int sparse_file_write(struct sparse_file *s, int fd, bool gz, bool sparse,
+		bool crc)
+{
+	int ret;
+	int chunks;
+	struct output_file *out;
+
+	chunks = sparse_count_chunks(s);
+	out = output_file_open_fd(fd, s->block_size, s->len, gz, sparse, chunks, crc);
+
+	if (!out)
+		return -ENOMEM;
+
+	ret = write_all_blocks(s, out);
+
+	output_file_close(out);
+
+	return ret;
+}
+
+int sparse_file_callback(struct sparse_file *s, bool sparse, bool crc,
+		int (*write)(void *priv, const void *data, int len), void *priv)
+{
+	int ret;
+	int chunks;
+	struct output_file *out;
+
+	chunks = sparse_count_chunks(s);
+	out = output_file_open_callback(write, priv, s->block_size, s->len, false,
+			sparse, chunks, crc);
+
+	if (!out)
+		return -ENOMEM;
+
+	ret = write_all_blocks(s, out);
+
+	output_file_close(out);
+
+	return ret;
+}
+
+static int out_counter_write(void *priv, const void *data, int len)
+{
+	int64_t *count = priv;
+	*count += len;
+	return 0;
+}
+
+int64_t sparse_file_len(struct sparse_file *s, bool sparse, bool crc)
+{
+	int ret;
+	int chunks = sparse_count_chunks(s);
+	int64_t count = 0;
+	struct output_file *out;
+
+	out = output_file_open_callback(out_counter_write, &count,
+			s->block_size, s->len, false, sparse, chunks, crc);
+	if (!out) {
+		return -1;
+	}
+
+	ret = write_all_blocks(s, out);
+
+	output_file_close(out);
+
+	if (ret < 0) {
+		return -1;
+	}
+
+	return count;
+}
+
+static struct backed_block *move_chunks_up_to_len(struct sparse_file *from,
+		struct sparse_file *to, unsigned int len)
+{
+	int64_t count = 0;
+	struct output_file *out_counter;
+	struct backed_block *last_bb = NULL;
+	struct backed_block *bb;
+	struct backed_block *start;
+	int64_t file_len = 0;
+
+	/*
+	 * overhead is sparse file header, initial skip chunk, split chunk, end
+	 * skip chunk, and crc chunk.
+	 */
+	int overhead = sizeof(sparse_header_t) + 4 * sizeof(chunk_header_t) +
+			sizeof(uint32_t);
+	len -= overhead;
+
+	start = backed_block_iter_new(from->backed_block_list);
+	out_counter = output_file_open_callback(out_counter_write, &count,
+			to->block_size, to->len, false, true, 0, false);
+	if (!out_counter) {
+		return NULL;
+	}
+
+	for (bb = start; bb; bb = backed_block_iter_next(bb)) {
+		count = 0;
+		/* will call out_counter_write to update count */
+		sparse_file_write_block(out_counter, bb);
+		if (file_len + count > len) {
+			/*
+			 * If the remaining available size is more than 1/8th of the
+			 * requested size, split the chunk.  Results in sparse files that
+			 * are at least 7/8ths of the requested size
+			 */
+			if (!last_bb || (len - file_len > (len / 8))) {
+				backed_block_split(from->backed_block_list, bb, len - file_len);
+				last_bb = bb;
+			}
+			goto out;
+		}
+		file_len += count;
+		last_bb = bb;
+	}
+
+out:
+	backed_block_list_move(from->backed_block_list,
+		to->backed_block_list, start, last_bb);
+
+	output_file_close(out_counter);
+
+	return bb;
+}
+
+int sparse_file_resparse(struct sparse_file *in_s, unsigned int max_len,
+		struct sparse_file **out_s, int out_s_count)
+{
+	struct backed_block *bb;
+	unsigned int overhead;
+	struct sparse_file *s;
+	struct sparse_file *tmp;
+	int c = 0;
+
+	tmp = sparse_file_new(in_s->block_size, in_s->len);
+	if (!tmp) {
+		return -ENOMEM;
+	}
+
+	do {
+		s = sparse_file_new(in_s->block_size, in_s->len);
+
+		bb = move_chunks_up_to_len(in_s, s, max_len);
+
+		if (c < out_s_count) {
+			out_s[c] = s;
+		} else {
+			backed_block_list_move(s->backed_block_list, tmp->backed_block_list,
+					NULL, NULL);
+			sparse_file_destroy(s);
+		}
+		c++;
+	} while (bb);
+
+	backed_block_list_move(tmp->backed_block_list, in_s->backed_block_list,
+			NULL, NULL);
+
+	sparse_file_destroy(tmp);
+
+	return c;
+}
+
+void sparse_file_verbose(struct sparse_file *s)
+{
+	s->verbose = true;
+}
diff --git a/libsparse/sparse_crc32.c b/libsparse/sparse_crc32.c
new file mode 100644
index 0000000..38bfe4a
--- /dev/null
+++ b/libsparse/sparse_crc32.c
@@ -0,0 +1,111 @@
+/*-
+ *  COPYRIGHT (C) 1986 Gary S. Brown.  You may use this program, or
+ *  code or tables extracted from it, as desired without restriction.
+ */
+
+/*
+ *  First, the polynomial itself and its table of feedback terms.  The
+ *  polynomial is
+ *  X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
+ *
+ *  Note that we take it "backwards" and put the highest-order term in
+ *  the lowest-order bit.  The X^32 term is "implied"; the LSB is the
+ *  X^31 term, etc.  The X^0 term (usually shown as "+1") results in
+ *  the MSB being 1
+ *
+ *  Note that the usual hardware shift register implementation, which
+ *  is what we're using (we're merely optimizing it by doing eight-bit
+ *  chunks at a time) shifts bits into the lowest-order term.  In our
+ *  implementation, that means shifting towards the right.  Why do we
+ *  do it this way?  Because the calculated CRC must be transmitted in
+ *  order from highest-order term to lowest-order term.  UARTs transmit
+ *  characters in order from LSB to MSB.  By storing the CRC this way
+ *  we hand it to the UART in the order low-byte to high-byte; the UART
+ *  sends each low-bit to hight-bit; and the result is transmission bit
+ *  by bit from highest- to lowest-order term without requiring any bit
+ *  shuffling on our part.  Reception works similarly
+ *
+ *  The feedback terms table consists of 256, 32-bit entries.  Notes
+ *
+ *      The table can be generated at runtime if desired; code to do so
+ *      is shown later.  It might not be obvious, but the feedback
+ *      terms simply represent the results of eight shift/xor opera
+ *      tions for all combinations of data and CRC register values
+ *
+ *      The values must be right-shifted by eight bits by the "updcrc
+ *      logic; the shift must be unsigned (bring in zeroes).  On some
+ *      hardware you could probably optimize the shift in assembler by
+ *      using byte-swap instructions
+ *      polynomial $edb88320
+ *
+ *
+ * CRC32 code derived from work by Gary S. Brown.
+ */
+
+/* Code taken from FreeBSD 8 */
+#include <stdint.h>
+
+static uint32_t crc32_tab[] = {
+        0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+        0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+        0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+        0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+        0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+        0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+        0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
+        0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+        0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+        0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+        0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
+        0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+        0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+        0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+        0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+        0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+        0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+        0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+        0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+        0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+        0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+        0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+        0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+        0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+        0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+        0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+        0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+        0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+        0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+        0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+        0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+        0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+        0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+        0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+        0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+        0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+        0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+        0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+        0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+        0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+        0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+        0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+        0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+};
+
+/*
+ * A function that calculates the CRC-32 based on the table above is
+ * given below for documentation purposes. An equivalent implementation
+ * of this function that's actually used in the kernel can be found
+ * in sys/libkern.h, where it can be inlined.
+ */
+
+uint32_t sparse_crc32(uint32_t crc_in, const void *buf, int size)
+{
+        const uint8_t *p = buf;
+        uint32_t crc;
+
+        crc = crc_in ^ ~0U;
+        while (size--)
+                crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
+        return crc ^ ~0U;
+}
+
diff --git a/nexus/NexusCommand.cpp b/libsparse/sparse_crc32.h
similarity index 76%
rename from nexus/NexusCommand.cpp
rename to libsparse/sparse_crc32.h
index 541eeeb..cad8a86 100644
--- a/nexus/NexusCommand.cpp
+++ b/libsparse/sparse_crc32.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#include "NexusCommand.h"
+#include <stdint.h>
 
-NexusCommand::NexusCommand(const char *cmd) :
-              FrameworkCommand(cmd)  {
-}
+uint32_t sparse_crc32(uint32_t crc, const void *buf, size_t size);
+
diff --git a/libsparse/sparse_defs.h b/libsparse/sparse_defs.h
new file mode 100644
index 0000000..b99cfd5
--- /dev/null
+++ b/libsparse/sparse_defs.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBSPARSE_SPARSE_DEFS_
+#define _LIBSPARSE_SPARSE_DEFS_
+
+#include <errno.h>
+#include <stdio.h>
+
+#define __le64 u64
+#define __le32 u32
+#define __le16 u16
+
+#define __be64 u64
+#define __be32 u32
+#define __be16 u16
+
+#define __u64 u64
+#define __u32 u32
+#define __u16 u16
+#define __u8 u8
+
+typedef unsigned long long u64;
+typedef signed long long s64;
+typedef unsigned int u32;
+typedef unsigned short int u16;
+typedef unsigned char u8;
+
+#define DIV_ROUND_UP(x, y) (((x) + (y) - 1)/(y))
+#define ALIGN(x, y) ((y) * DIV_ROUND_UP((x), (y)))
+#define ALIGN_DOWN(x, y) ((y) * ((x) / (y)))
+
+#define error(fmt, args...) do { fprintf(stderr, "error: %s: " fmt "\n", __func__, ## args); } while (0)
+#define error_errno(s, args...) error(s ": %s", ##args, strerror(errno))
+
+#endif
diff --git a/libsparse/sparse_err.c b/libsparse/sparse_err.c
new file mode 100644
index 0000000..0f392ad
--- /dev/null
+++ b/libsparse/sparse_err.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sparse/sparse.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <unistd.h>
+
+void sparse_default_print(const char *fmt, ...)
+{
+	va_list argp;
+
+	va_start(argp, fmt);
+	vfprintf(stderr, fmt, argp);
+	va_end(argp);
+}
+
+void (*sparse_print_error)(const char *fmt, ...) = sparse_default_print;
+void (*sparse_print_verbose)(const char *fmt, ...) = sparse_default_print;
diff --git a/nexus/SupplicantEventFactory.h b/libsparse/sparse_file.h
similarity index 62%
rename from nexus/SupplicantEventFactory.h
rename to libsparse/sparse_file.h
index 22e5707..91a12e6 100644
--- a/nexus/SupplicantEventFactory.h
+++ b/libsparse/sparse_file.h
@@ -1,6 +1,5 @@
-
 /*
- * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2012 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,17 +14,19 @@
  * limitations under the License.
  */
 
-#ifndef _SupplicantEventFactory_H
-#define _SupplicantEventFactory_H
+#ifndef _LIBSPARSE_SPARSE_FILE_H_
+#define _LIBSPARSE_SPARSE_FILE_H_
 
-class SupplicantEvent;
+#include <sparse/sparse.h>
 
-class SupplicantEventFactory {
-public:
-    SupplicantEventFactory();
-    virtual ~SupplicantEventFactory() {}
+struct sparse_file {
+	unsigned int block_size;
+	int64_t len;
+	bool verbose;
 
-    SupplicantEvent *createEvent(char *event, size_t len);
+	struct backed_block_list *backed_block_list;
+	struct output_file *out;
 };
 
-#endif
+
+#endif /* _LIBSPARSE_SPARSE_FILE_H_ */
diff --git a/libsparse/sparse_format.h b/libsparse/sparse_format.h
new file mode 100644
index 0000000..c41f12a
--- /dev/null
+++ b/libsparse/sparse_format.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBSPARSE_SPARSE_FORMAT_H_
+#define _LIBSPARSE_SPARSE_FORMAT_H_
+#include "sparse_defs.h"
+
+typedef struct sparse_header {
+  __le32	magic;		/* 0xed26ff3a */
+  __le16	major_version;	/* (0x1) - reject images with higher major versions */
+  __le16	minor_version;	/* (0x0) - allow images with higer minor versions */
+  __le16	file_hdr_sz;	/* 28 bytes for first revision of the file format */
+  __le16	chunk_hdr_sz;	/* 12 bytes for first revision of the file format */
+  __le32	blk_sz;		/* block size in bytes, must be a multiple of 4 (4096) */
+  __le32	total_blks;	/* total blocks in the non-sparse output image */
+  __le32	total_chunks;	/* total chunks in the sparse input image */
+  __le32	image_checksum; /* CRC32 checksum of the original data, counting "don't care" */
+				/* as 0. Standard 802.3 polynomial, use a Public Domain */
+				/* table implementation */
+} sparse_header_t;
+
+#define SPARSE_HEADER_MAGIC	0xed26ff3a
+
+#define CHUNK_TYPE_RAW		0xCAC1
+#define CHUNK_TYPE_FILL		0xCAC2
+#define CHUNK_TYPE_DONT_CARE	0xCAC3
+#define CHUNK_TYPE_CRC32    0xCAC4
+
+typedef struct chunk_header {
+  __le16	chunk_type;	/* 0xCAC1 -> raw; 0xCAC2 -> fill; 0xCAC3 -> don't care */
+  __le16	reserved1;
+  __le32	chunk_sz;	/* in blocks in output image */
+  __le32	total_sz;	/* in bytes of chunk input file including chunk header and data */
+} chunk_header_t;
+
+/* Following a Raw or Fill or CRC32 chunk is data.
+ *  For a Raw chunk, it's the data in chunk_sz * blk_sz.
+ *  For a Fill chunk, it's 4 bytes of the fill data.
+ *  For a CRC32 chunk, it's 4 bytes of CRC32
+ */
+
+#endif
diff --git a/libsparse/sparse_read.c b/libsparse/sparse_read.c
new file mode 100644
index 0000000..704bcfa
--- /dev/null
+++ b/libsparse/sparse_read.c
@@ -0,0 +1,509 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sparse/sparse.h>
+
+#include "sparse_crc32.h"
+#include "sparse_file.h"
+#include "sparse_format.h"
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define lseek64 lseek
+#define off64_t off_t
+#endif
+
+#define SPARSE_HEADER_MAJOR_VER 1
+#define SPARSE_HEADER_LEN       (sizeof(sparse_header_t))
+#define CHUNK_HEADER_LEN (sizeof(chunk_header_t))
+
+#define COPY_BUF_SIZE (1024U*1024U)
+static char *copybuf;
+
+#define min(a, b) \
+	({ typeof(a) _a = (a); typeof(b) _b = (b); (_a < _b) ? _a : _b; })
+
+static void verbose_error(bool verbose, int err, const char *fmt, ...)
+{
+	char *s = "";
+	char *at = "";
+	if (fmt) {
+		va_list argp;
+		int size;
+
+		va_start(argp, fmt);
+		size = vsnprintf(NULL, 0, fmt, argp);
+		va_end(argp);
+
+		if (size < 0) {
+			return;
+		}
+
+		at = malloc(size + 1);
+		if (at == NULL) {
+			return;
+		}
+
+		va_start(argp, fmt);
+		vsnprintf(at, size, fmt, argp);
+		va_end(argp);
+		at[size] = 0;
+		s = " at ";
+	}
+	if (verbose) {
+#ifndef USE_MINGW
+		if (err == -EOVERFLOW) {
+			sparse_print_verbose("EOF while reading file%s%s\n", s, at);
+		} else
+#endif
+		if (err == -EINVAL) {
+			sparse_print_verbose("Invalid sparse file format%s%s\n", s, at);
+		} else if (err == -ENOMEM) {
+			sparse_print_verbose("Failed allocation while reading file%s%s\n",
+					s, at);
+		} else {
+			sparse_print_verbose("Unknown error %d%s%s\n", err, s, at);
+		}
+	}
+	if (fmt) {
+		free(at);
+	}
+}
+
+static int process_raw_chunk(struct sparse_file *s, unsigned int chunk_size,
+		int fd, int64_t offset, unsigned int blocks, unsigned int block,
+		uint32_t *crc32)
+{
+	int ret;
+	int chunk;
+	unsigned int len = blocks * s->block_size;
+
+	if (chunk_size % s->block_size != 0) {
+		return -EINVAL;
+	}
+
+	if (chunk_size / s->block_size != blocks) {
+		return -EINVAL;
+	}
+
+	ret = sparse_file_add_fd(s, fd, offset, len, block);
+	if (ret < 0) {
+		return ret;
+	}
+
+	if (crc32) {
+		while (len) {
+			chunk = min(len, COPY_BUF_SIZE);
+			ret = read_all(fd, copybuf, chunk);
+			if (ret < 0) {
+				return ret;
+			}
+			*crc32 = sparse_crc32(*crc32, copybuf, chunk);
+			len -= chunk;
+		}
+	} else {
+		lseek64(fd, len, SEEK_CUR);
+	}
+
+	return 0;
+}
+
+static int process_fill_chunk(struct sparse_file *s, unsigned int chunk_size,
+		int fd, unsigned int blocks, unsigned int block, uint32_t *crc32)
+{
+	int ret;
+	int chunk;
+	int64_t len = (int64_t)blocks * s->block_size;
+	uint32_t fill_val;
+	uint32_t *fillbuf;
+	unsigned int i;
+
+	if (chunk_size != sizeof(fill_val)) {
+		return -EINVAL;
+	}
+
+	ret = read_all(fd, &fill_val, sizeof(fill_val));
+	if (ret < 0) {
+		return ret;
+	}
+
+	ret = sparse_file_add_fill(s, fill_val, len, block);
+	if (ret < 0) {
+		return ret;
+	}
+
+	if (crc32) {
+		/* Fill copy_buf with the fill value */
+		fillbuf = (uint32_t *)copybuf;
+		for (i = 0; i < (COPY_BUF_SIZE / sizeof(fill_val)); i++) {
+			fillbuf[i] = fill_val;
+		}
+
+		while (len) {
+			chunk = min(len, COPY_BUF_SIZE);
+			*crc32 = sparse_crc32(*crc32, copybuf, chunk);
+			len -= chunk;
+		}
+	}
+
+	return 0;
+}
+
+static int process_skip_chunk(struct sparse_file *s, unsigned int chunk_size,
+		int fd, unsigned int blocks, unsigned int block, uint32_t *crc32)
+{
+	int ret;
+	int chunk;
+	int64_t len = (int64_t)blocks * s->block_size;
+	uint32_t fill_val;
+	uint32_t *fillbuf;
+	unsigned int i;
+
+	if (chunk_size != 0) {
+		return -EINVAL;
+	}
+
+	if (crc32) {
+		memset(copybuf, 0, COPY_BUF_SIZE);
+
+		while (len) {
+			chunk = min(len, COPY_BUF_SIZE);
+			*crc32 = sparse_crc32(*crc32, copybuf, chunk);
+			len -= chunk;
+		}
+	}
+
+	return 0;
+}
+
+static int process_crc32_chunk(int fd, unsigned int chunk_size, uint32_t crc32)
+{
+	uint32_t file_crc32;
+	int ret;
+
+	if (chunk_size != sizeof(file_crc32)) {
+		return -EINVAL;
+	}
+
+	ret = read_all(fd, &file_crc32, sizeof(file_crc32));
+	if (ret < 0) {
+		return ret;
+	}
+
+	if (file_crc32 != crc32) {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int process_chunk(struct sparse_file *s, int fd, off64_t offset,
+		unsigned int chunk_hdr_sz, chunk_header_t *chunk_header,
+		unsigned int cur_block, uint32_t *crc_ptr)
+{
+	int ret;
+	unsigned int chunk_data_size;
+
+	chunk_data_size = chunk_header->total_sz - chunk_hdr_sz;
+
+	switch (chunk_header->chunk_type) {
+		case CHUNK_TYPE_RAW:
+			ret = process_raw_chunk(s, chunk_data_size, fd, offset,
+					chunk_header->chunk_sz, cur_block, crc_ptr);
+			if (ret < 0) {
+				verbose_error(s->verbose, ret, "data block at %lld", offset);
+				return ret;
+			}
+			return chunk_header->chunk_sz;
+		case CHUNK_TYPE_FILL:
+			ret = process_fill_chunk(s, chunk_data_size, fd,
+					chunk_header->chunk_sz, cur_block, crc_ptr);
+			if (ret < 0) {
+				verbose_error(s->verbose, ret, "fill block at %lld", offset);
+				return ret;
+			}
+			return chunk_header->chunk_sz;
+		case CHUNK_TYPE_DONT_CARE:
+			ret = process_skip_chunk(s, chunk_data_size, fd,
+					chunk_header->chunk_sz, cur_block, crc_ptr);
+			if (chunk_data_size != 0) {
+				if (ret < 0) {
+					verbose_error(s->verbose, ret, "skip block at %lld", offset);
+					return ret;
+				}
+			}
+			return chunk_header->chunk_sz;
+		case CHUNK_TYPE_CRC32:
+			ret = process_crc32_chunk(fd, chunk_data_size, *crc_ptr);
+			if (ret < 0) {
+				verbose_error(s->verbose, -EINVAL, "crc block at %lld",
+						offset);
+				return ret;
+			}
+			return 0;
+		default:
+			verbose_error(s->verbose, -EINVAL, "unknown block %04X at %lld",
+					chunk_header->chunk_type, offset);
+	}
+
+	return 0;
+}
+
+static int sparse_file_read_sparse(struct sparse_file *s, int fd, bool crc)
+{
+	int ret;
+	unsigned int i;
+	sparse_header_t sparse_header;
+	chunk_header_t chunk_header;
+	uint32_t crc32 = 0;
+	uint32_t *crc_ptr = 0;
+	unsigned int cur_block = 0;
+	off64_t offset;
+
+	if (!copybuf) {
+		copybuf = malloc(COPY_BUF_SIZE);
+	}
+
+	if (!copybuf) {
+		return -ENOMEM;
+	}
+
+	if (crc) {
+		crc_ptr = &crc32;
+	}
+
+	ret = read_all(fd, &sparse_header, sizeof(sparse_header));
+	if (ret < 0) {
+		return ret;
+	}
+
+	if (sparse_header.magic != SPARSE_HEADER_MAGIC) {
+		return -EINVAL;
+	}
+
+	if (sparse_header.major_version != SPARSE_HEADER_MAJOR_VER) {
+		return -EINVAL;
+	}
+
+	if (sparse_header.file_hdr_sz < SPARSE_HEADER_LEN) {
+		return -EINVAL;
+	}
+
+	if (sparse_header.chunk_hdr_sz < sizeof(chunk_header)) {
+		return -EINVAL;
+	}
+
+	if (sparse_header.file_hdr_sz > SPARSE_HEADER_LEN) {
+		/* Skip the remaining bytes in a header that is longer than
+		 * we expected.
+		 */
+		lseek64(fd, sparse_header.file_hdr_sz - SPARSE_HEADER_LEN, SEEK_CUR);
+	}
+
+	for (i = 0; i < sparse_header.total_chunks; i++) {
+		ret = read_all(fd, &chunk_header, sizeof(chunk_header));
+		if (ret < 0) {
+			return ret;
+		}
+
+		if (sparse_header.chunk_hdr_sz > CHUNK_HEADER_LEN) {
+			/* Skip the remaining bytes in a header that is longer than
+			 * we expected.
+			 */
+			lseek64(fd, sparse_header.chunk_hdr_sz - CHUNK_HEADER_LEN, SEEK_CUR);
+		}
+
+		offset = lseek64(fd, 0, SEEK_CUR);
+
+		ret = process_chunk(s, fd, offset, sparse_header.chunk_hdr_sz, &chunk_header,
+				cur_block, crc_ptr);
+		if (ret < 0) {
+			return ret;
+		}
+
+		cur_block += ret;
+	}
+
+	if (sparse_header.total_blks != cur_block) {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int sparse_file_read_normal(struct sparse_file *s, int fd)
+{
+	int ret;
+	uint32_t *buf = malloc(s->block_size);
+	unsigned int block = 0;
+	int64_t remain = s->len;
+	int64_t offset = 0;
+	unsigned int to_read;
+	char *ptr;
+	unsigned int i;
+	bool sparse_block;
+
+	if (!buf) {
+		return -ENOMEM;
+	}
+
+	while (remain > 0) {
+		to_read = min(remain, s->block_size);
+		ret = read_all(fd, buf, to_read);
+		if (ret < 0) {
+			error("failed to read sparse file");
+			return ret;
+		}
+
+		if (to_read == s->block_size) {
+			sparse_block = true;
+			for (i = 1; i < s->block_size / sizeof(uint32_t); i++) {
+				if (buf[0] != buf[i]) {
+					sparse_block = false;
+					break;
+				}
+			}
+		} else {
+			sparse_block = false;
+		}
+
+		if (sparse_block) {
+			/* TODO: add flag to use skip instead of fill for buf[0] == 0 */
+			sparse_file_add_fill(s, buf[0], to_read, block);
+		} else {
+			sparse_file_add_fd(s, fd, offset, to_read, block);
+		}
+
+		remain -= to_read;
+		offset += to_read;
+		block++;
+	}
+
+	return 0;
+}
+
+int sparse_file_read(struct sparse_file *s, int fd, bool sparse, bool crc)
+{
+	if (crc && !sparse) {
+		return -EINVAL;
+	}
+
+	if (sparse) {
+		return sparse_file_read_sparse(s, fd, crc);
+	} else {
+		return sparse_file_read_normal(s, fd);
+	}
+}
+
+struct sparse_file *sparse_file_import(int fd, bool verbose, bool crc)
+{
+	int ret;
+	sparse_header_t sparse_header;
+	int64_t len;
+	struct sparse_file *s;
+
+	ret = read_all(fd, &sparse_header, sizeof(sparse_header));
+	if (ret < 0) {
+		verbose_error(verbose, ret, "header");
+		return NULL;
+	}
+
+	if (sparse_header.magic != SPARSE_HEADER_MAGIC) {
+		verbose_error(verbose, -EINVAL, "header magic");
+		return NULL;
+	}
+
+	if (sparse_header.major_version != SPARSE_HEADER_MAJOR_VER) {
+		verbose_error(verbose, -EINVAL, "header major version");
+		return NULL;
+	}
+
+	if (sparse_header.file_hdr_sz < SPARSE_HEADER_LEN) {
+		return NULL;
+	}
+
+	if (sparse_header.chunk_hdr_sz < sizeof(chunk_header_t)) {
+		return NULL;
+	}
+
+	len = (int64_t)sparse_header.total_blks * sparse_header.blk_sz;
+	s = sparse_file_new(sparse_header.blk_sz, len);
+	if (!s) {
+		verbose_error(verbose, -EINVAL, NULL);
+		return NULL;
+	}
+
+	ret = lseek64(fd, 0, SEEK_SET);
+	if (ret < 0) {
+		verbose_error(verbose, ret, "seeking");
+		sparse_file_destroy(s);
+		return NULL;
+	}
+
+	s->verbose = verbose;
+
+	ret = sparse_file_read(s, fd, true, crc);
+	if (ret < 0) {
+		sparse_file_destroy(s);
+		return NULL;
+	}
+
+	return s;
+}
+
+struct sparse_file *sparse_file_import_auto(int fd, bool crc)
+{
+	struct sparse_file *s;
+	int64_t len;
+	int ret;
+
+	s = sparse_file_import(fd, true, crc);
+	if (s) {
+		return s;
+	}
+
+	len = lseek64(fd, 0, SEEK_END);
+	if (len < 0) {
+		return NULL;
+	}
+
+	lseek64(fd, 0, SEEK_SET);
+
+	s = sparse_file_new(4096, len);
+	if (!s) {
+		return NULL;
+	}
+
+	ret = sparse_file_read_normal(s, fd);
+	if (ret < 0) {
+		sparse_file_destroy(s);
+		return NULL;
+	}
+
+	return s;
+}
diff --git a/libsuspend/Android.mk b/libsuspend/Android.mk
new file mode 100644
index 0000000..45cb701
--- /dev/null
+++ b/libsuspend/Android.mk
@@ -0,0 +1,23 @@
+# Copyright 2012 The Android Open Source Project
+
+LOCAL_PATH:= $(call my-dir)
+
+libsuspend_src_files := \
+	autosuspend.c \
+	autosuspend_autosleep.c \
+	autosuspend_earlysuspend.c \
+	autosuspend_wakeup_count.c \
+
+libsuspend_libraries := \
+	liblog libcutils
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(libsuspend_src_files)
+LOCAL_MODULE := libsuspend
+LOCAL_MODULE_TAGS := optional
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
+LOCAL_SHARED_LIBRARIES := $(libsuspend_libraries)
+#LOCAL_CFLAGS += -DLOG_NDEBUG=0
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libsuspend/autosuspend.c b/libsuspend/autosuspend.c
new file mode 100644
index 0000000..7d1d973
--- /dev/null
+++ b/libsuspend/autosuspend.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdbool.h>
+
+#define LOG_TAG "libsuspend"
+#include <cutils/log.h>
+
+#include <suspend/autosuspend.h>
+
+#include "autosuspend_ops.h"
+
+static struct autosuspend_ops *autosuspend_ops;
+static bool autosuspend_enabled;
+static bool autosuspend_inited;
+
+static int autosuspend_init(void)
+{
+    if (autosuspend_inited) {
+        return 0;
+    }
+
+    autosuspend_inited = true;
+
+    autosuspend_ops = autosuspend_earlysuspend_init();
+    if (autosuspend_ops) {
+        goto out;
+    }
+
+    autosuspend_ops = autosuspend_autosleep_init();
+    if (autosuspend_ops) {
+        goto out;
+    }
+
+    autosuspend_ops = autosuspend_wakeup_count_init();
+    if (autosuspend_ops) {
+        goto out;
+    }
+
+    if (!autosuspend_ops) {
+        ALOGE("failed to initialize autosuspend\n");
+        return -1;
+    }
+
+out:
+    ALOGV("autosuspend initialized\n");
+    return 0;
+}
+
+int autosuspend_enable(void)
+{
+    int ret;
+
+    ret = autosuspend_init();
+    if (ret) {
+        return ret;
+    }
+
+    ALOGV("autosuspend_enable\n");
+
+    if (autosuspend_enabled) {
+        return 0;
+    }
+
+    ret = autosuspend_ops->enable();
+    if (ret) {
+        return ret;
+    }
+
+    autosuspend_enabled = true;
+    return 0;
+}
+
+int autosuspend_disable(void)
+{
+    int ret;
+
+    ret = autosuspend_init();
+    if (ret) {
+        return ret;
+    }
+
+    ALOGV("autosuspend_disable\n");
+
+    if (!autosuspend_enabled) {
+        return 0;
+    }
+
+    ret = autosuspend_ops->disable();
+    if (ret) {
+        return ret;
+    }
+
+    autosuspend_enabled = false;
+    return 0;
+}
diff --git a/libsuspend/autosuspend_autosleep.c b/libsuspend/autosuspend_autosleep.c
new file mode 100644
index 0000000..dd0dfef
--- /dev/null
+++ b/libsuspend/autosuspend_autosleep.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define LOG_TAG "libsuspend"
+#include <cutils/log.h>
+
+#include "autosuspend_ops.h"
+
+#define SYS_POWER_AUTOSLEEP "/sys/power/autosleep"
+
+static int autosleep_fd;
+static const char *sleep_state = "mem";
+static const char *on_state = "off";
+
+static int autosuspend_autosleep_enable(void)
+{
+    char buf[80];
+    int ret;
+
+    ALOGV("autosuspend_autosleep_enable\n");
+
+    ret = write(autosleep_fd, sleep_state, strlen(sleep_state));
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error writing to %s: %s\n", SYS_POWER_AUTOSLEEP, buf);
+        goto err;
+    }
+
+    ALOGV("autosuspend_autosleep_enable done\n");
+
+    return 0;
+
+err:
+    return ret;
+}
+
+static int autosuspend_autosleep_disable(void)
+{
+    char buf[80];
+    int ret;
+
+    ALOGV("autosuspend_autosleep_disable\n");
+
+    ret = write(autosleep_fd, on_state, strlen(on_state));
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error writing to %s: %s\n", SYS_POWER_AUTOSLEEP, buf);
+        goto err;
+    }
+
+    ALOGV("autosuspend_autosleep_disable done\n");
+
+    return 0;
+
+err:
+    return ret;
+}
+
+struct autosuspend_ops autosuspend_autosleep_ops = {
+        .enable = autosuspend_autosleep_enable,
+        .disable = autosuspend_autosleep_disable,
+};
+
+struct autosuspend_ops *autosuspend_autosleep_init(void)
+{
+    int ret;
+    char buf[80];
+
+    autosleep_fd = open(SYS_POWER_AUTOSLEEP, O_WRONLY);
+    if (autosleep_fd < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error opening %s: %s\n", SYS_POWER_AUTOSLEEP, buf);
+        return NULL;
+    }
+
+    ALOGI("Selected autosleep\n");
+    return &autosuspend_autosleep_ops;
+}
diff --git a/libsuspend/autosuspend_earlysuspend.c b/libsuspend/autosuspend_earlysuspend.c
new file mode 100644
index 0000000..2c2aa36
--- /dev/null
+++ b/libsuspend/autosuspend_earlysuspend.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#define LOG_TAG "libsuspend"
+#include <cutils/log.h>
+
+#include "autosuspend_ops.h"
+
+#define EARLYSUSPEND_SYS_POWER_STATE "/sys/power/state"
+#define EARLYSUSPEND_WAIT_FOR_FB_SLEEP "/sys/power/wait_for_fb_sleep"
+#define EARLYSUSPEND_WAIT_FOR_FB_WAKE "/sys/power/wait_for_fb_wake"
+
+
+static int sPowerStatefd;
+static const char *pwr_state_mem = "mem";
+static const char *pwr_state_on = "on";
+
+static int autosuspend_earlysuspend_enable(void)
+{
+    char buf[80];
+    int ret;
+
+    ALOGV("autosuspend_earlysuspend_enable\n");
+
+    ret = write(sPowerStatefd, pwr_state_mem, strlen(pwr_state_mem));
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error writing to %s: %s\n", EARLYSUSPEND_SYS_POWER_STATE, buf);
+        goto err;
+    }
+
+    ALOGV("autosuspend_earlysuspend_enable done\n");
+
+    return 0;
+
+err:
+    return ret;
+}
+
+static int autosuspend_earlysuspend_disable(void)
+{
+    char buf[80];
+    int ret;
+
+    ALOGV("autosuspend_earlysuspend_disable\n");
+
+    ret = write(sPowerStatefd, pwr_state_on, strlen(pwr_state_on));
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error writing to %s: %s\n", EARLYSUSPEND_SYS_POWER_STATE, buf);
+        goto err;
+    }
+
+    ALOGV("autosuspend_earlysuspend_disable done\n");
+
+    return 0;
+
+err:
+    return ret;
+}
+
+struct autosuspend_ops autosuspend_earlysuspend_ops = {
+        .enable = autosuspend_earlysuspend_enable,
+        .disable = autosuspend_earlysuspend_disable,
+};
+
+struct autosuspend_ops *autosuspend_earlysuspend_init(void)
+{
+    char buf[80];
+    int ret;
+
+    ret = access(EARLYSUSPEND_WAIT_FOR_FB_SLEEP, F_OK);
+    if (ret < 0) {
+        return NULL;
+    }
+
+    ret = access(EARLYSUSPEND_WAIT_FOR_FB_WAKE, F_OK);
+    if (ret < 0) {
+        return NULL;
+    }
+
+    sPowerStatefd = open(EARLYSUSPEND_SYS_POWER_STATE, O_RDWR);
+
+    if (sPowerStatefd < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error opening %s: %s\n", EARLYSUSPEND_SYS_POWER_STATE, buf);
+        return NULL;
+    }
+
+    ALOGI("Selected early suspend\n");
+    return &autosuspend_earlysuspend_ops;
+}
diff --git a/libsuspend/autosuspend_ops.h b/libsuspend/autosuspend_ops.h
new file mode 100644
index 0000000..698e25b
--- /dev/null
+++ b/libsuspend/autosuspend_ops.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBSUSPEND_AUTOSUSPEND_OPS_H_
+#define _LIBSUSPEND_AUTOSUSPEND_OPS_H_
+
+struct autosuspend_ops {
+    int (*enable)(void);
+    int (*disable)(void);
+};
+
+struct autosuspend_ops *autosuspend_autosleep_init(void);
+struct autosuspend_ops *autosuspend_earlysuspend_init(void);
+struct autosuspend_ops *autosuspend_wakeup_count_init(void);
+
+#endif
diff --git a/libsuspend/autosuspend_wakeup_count.c b/libsuspend/autosuspend_wakeup_count.c
new file mode 100644
index 0000000..a88e677
--- /dev/null
+++ b/libsuspend/autosuspend_wakeup_count.c
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <stddef.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define LOG_TAG "libsuspend"
+#include <cutils/log.h>
+
+#include "autosuspend_ops.h"
+
+#define SYS_POWER_STATE "/sys/power/state"
+#define SYS_POWER_WAKEUP_COUNT "/sys/power/wakeup_count"
+
+static int state_fd;
+static int wakeup_count_fd;
+static pthread_t suspend_thread;
+static sem_t suspend_lockout;
+static const char *sleep_state = "mem";
+
+static void *suspend_thread_func(void *arg __attribute__((unused)))
+{
+    char buf[80];
+    char wakeup_count[20];
+    int wakeup_count_len;
+    int ret;
+
+    while (1) {
+        usleep(100000);
+        ALOGV("%s: read wakeup_count\n", __func__);
+        lseek(wakeup_count_fd, 0, SEEK_SET);
+        wakeup_count_len = read(wakeup_count_fd, wakeup_count, sizeof(wakeup_count));
+        if (wakeup_count_len < 0) {
+            strerror_r(errno, buf, sizeof(buf));
+            ALOGE("Error reading from %s: %s\n", SYS_POWER_WAKEUP_COUNT, buf);
+            wakeup_count_len = 0;
+            continue;
+        }
+        if (!wakeup_count_len) {
+            ALOGE("Empty wakeup count\n");
+            continue;
+        }
+
+        ALOGV("%s: wait\n", __func__);
+        ret = sem_wait(&suspend_lockout);
+        if (ret < 0) {
+            strerror_r(errno, buf, sizeof(buf));
+            ALOGE("Error waiting on semaphore: %s\n", buf);
+            continue;
+        }
+
+        ALOGV("%s: write %*s to wakeup_count\n", __func__, wakeup_count_len, wakeup_count);
+        ret = write(wakeup_count_fd, wakeup_count, wakeup_count_len);
+        if (ret < 0) {
+            strerror_r(errno, buf, sizeof(buf));
+            ALOGE("Error writing to %s: %s\n", SYS_POWER_WAKEUP_COUNT, buf);
+        } else {
+            ALOGV("%s: write %s to %s\n", __func__, sleep_state, SYS_POWER_STATE);
+            ret = write(state_fd, sleep_state, strlen(sleep_state));
+            if (ret < 0) {
+                strerror_r(errno, buf, sizeof(buf));
+                ALOGE("Error writing to %s: %s\n", SYS_POWER_STATE, buf);
+            }
+        }
+
+        ALOGV("%s: release sem\n", __func__);
+        ret = sem_post(&suspend_lockout);
+        if (ret < 0) {
+            strerror_r(errno, buf, sizeof(buf));
+            ALOGE("Error releasing semaphore: %s\n", buf);
+        }
+    }
+    return NULL;
+}
+
+static int autosuspend_wakeup_count_enable(void)
+{
+    char buf[80];
+    int ret;
+
+    ALOGV("autosuspend_wakeup_count_enable\n");
+
+    ret = sem_post(&suspend_lockout);
+
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error changing semaphore: %s\n", buf);
+    }
+
+    ALOGV("autosuspend_wakeup_count_enable done\n");
+
+    return ret;
+}
+
+static int autosuspend_wakeup_count_disable(void)
+{
+    char buf[80];
+    int ret;
+
+    ALOGV("autosuspend_wakeup_count_disable\n");
+
+    ret = sem_wait(&suspend_lockout);
+
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error changing semaphore: %s\n", buf);
+    }
+
+    ALOGV("autosuspend_wakeup_count_disable done\n");
+
+    return ret;
+}
+
+struct autosuspend_ops autosuspend_wakeup_count_ops = {
+        .enable = autosuspend_wakeup_count_enable,
+        .disable = autosuspend_wakeup_count_disable,
+};
+
+struct autosuspend_ops *autosuspend_wakeup_count_init(void)
+{
+    int ret;
+    char buf[80];
+
+    state_fd = open(SYS_POWER_STATE, O_RDWR);
+    if (state_fd < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error opening %s: %s\n", SYS_POWER_STATE, buf);
+        goto err_open_state;
+    }
+
+    wakeup_count_fd = open(SYS_POWER_WAKEUP_COUNT, O_RDWR);
+    if (wakeup_count_fd < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error opening %s: %s\n", SYS_POWER_WAKEUP_COUNT, buf);
+        goto err_open_wakeup_count;
+    }
+
+    ret = sem_init(&suspend_lockout, 0, 0);
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error creating semaphore: %s\n", buf);
+        goto err_sem_init;
+    }
+    ret = pthread_create(&suspend_thread, NULL, suspend_thread_func, NULL);
+    if (ret) {
+        strerror_r(ret, buf, sizeof(buf));
+        ALOGE("Error creating thread: %s\n", buf);
+        goto err_pthread_create;
+    }
+
+    ALOGI("Selected wakeup count\n");
+    return &autosuspend_wakeup_count_ops;
+
+err_pthread_create:
+    sem_destroy(&suspend_lockout);
+err_sem_init:
+    close(wakeup_count_fd);
+err_open_wakeup_count:
+    close(state_fd);
+err_open_state:
+    return NULL;
+}
diff --git a/libsuspend/include/suspend/autosuspend.h b/libsuspend/include/suspend/autosuspend.h
new file mode 100644
index 0000000..f56fc6a
--- /dev/null
+++ b/libsuspend/include/suspend/autosuspend.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBSUSPEND_AUTOSUSPEND_H_
+#define _LIBSUSPEND_AUTOSUSPEND_H_
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+/*
+ * autosuspend_enable
+ *
+ * Turn on autosuspend in the kernel, allowing it to enter suspend if no
+ * wakelocks/wakeup_sources are held.
+ *
+ *
+ *
+ * Returns 0 on success, -1 if autosuspend was not enabled.
+ */
+int autosuspend_enable(void);
+
+/*
+ * autosuspend_disable
+ *
+ * Turn off autosuspend in the kernel, preventing suspend and synchronizing
+ * with any in-progress resume.
+ *
+ * Returns 0 on success, -1 if autosuspend was not disabled.
+ */
+int autosuspend_disable(void);
+
+__END_DECLS
+
+#endif
diff --git a/libsync/Android.mk b/libsync/Android.mk
new file mode 100644
index 0000000..73de069
--- /dev/null
+++ b/libsync/Android.mk
@@ -0,0 +1,15 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := sync.c
+LOCAL_MODULE := libsync
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := liblog
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := sync.c sync_test.c
+LOCAL_MODULE := sync_test
+LOCAL_MODULE_TAGS := optional tests
+LOCAL_SHARED_LIBRARIES := liblog
+include $(BUILD_EXECUTABLE)
diff --git a/libsync/sync.c b/libsync/sync.c
new file mode 100644
index 0000000..311da14
--- /dev/null
+++ b/libsync/sync.c
@@ -0,0 +1,115 @@
+/*
+ *  sync.c
+ *
+ *   Copyright 2012 Google, Inc
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include <fcntl.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <sync/sync.h>
+
+int sync_wait(int fd, unsigned int timeout)
+{
+    __u32 to = timeout;
+
+    return ioctl(fd, SYNC_IOC_WAIT, &to);
+}
+
+int sync_merge(const char *name, int fd1, int fd2)
+{
+    struct sync_merge_data data;
+    int err;
+
+    data.fd2 = fd2;
+    strlcpy(data.name, name, sizeof(data.name));
+
+    err = ioctl(fd1, SYNC_IOC_MERGE, &data);
+    if (err < 0)
+        return err;
+
+    return data.fence;
+}
+
+struct sync_fence_info_data *sync_fence_info(int fd)
+{
+    struct sync_fence_info_data *info;
+    int err;
+
+    info = malloc(4096);
+    if (info == NULL)
+        return NULL;
+
+    info->len = 4096;
+    err = ioctl(fd, SYNC_IOC_FENCE_INFO, info);
+    if (err < 0) {
+        free(info);
+        return NULL;
+    }
+
+    return info;
+}
+
+struct sync_pt_info *sync_pt_info(struct sync_fence_info_data *info,
+                                  struct sync_pt_info *itr)
+{
+    if (itr == NULL)
+        itr = (struct sync_pt_info *) info->pt_info;
+    else
+        itr = (struct sync_pt_info *) ((__u8 *)itr + itr->len);
+
+    if ((__u8 *)itr - (__u8 *)info >= (int)info->len)
+        return NULL;
+
+    return itr;
+}
+
+void sync_fence_info_free(struct sync_fence_info_data *info)
+{
+    free(info);
+}
+
+
+int sw_sync_timeline_create(void)
+{
+    return open("/dev/sw_sync", O_RDWR);
+}
+
+int sw_sync_timeline_inc(int fd, unsigned count)
+{
+    __u32 arg = count;
+
+    return ioctl(fd, SW_SYNC_IOC_INC, &arg);
+}
+
+int sw_sync_fence_create(int fd, const char *name, unsigned value)
+{
+    struct sw_sync_create_fence_data data;
+    int err;
+
+    data.value = value;
+    strlcpy(data.name, name, sizeof(data.name));
+
+    err = ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data);
+    if (err < 0)
+        return err;
+
+    return data.fence;
+}
diff --git a/libsync/sync_test.c b/libsync/sync_test.c
new file mode 100644
index 0000000..a75f671
--- /dev/null
+++ b/libsync/sync_test.c
@@ -0,0 +1,146 @@
+/*
+ *  sync_test.c
+ *
+ *   Copyright 2012 Google, Inc
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sync/sync.h>
+
+pthread_mutex_t printf_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+struct sync_thread_data {
+    int thread_no;
+    int fd[2];
+};
+
+void *sync_thread(void *data)
+{
+    struct sync_thread_data *sync_data = data;
+    struct sync_fence_info_data *info;
+    int err;
+    int i;
+
+    for (i = 0; i < 2; i++) {
+        err = sync_wait(sync_data->fd[i], 10000);
+
+        pthread_mutex_lock(&printf_mutex);
+        if (err < 0) {
+            printf("thread %d wait %d failed: %s\n", sync_data->thread_no,
+                   i, strerror(errno));
+        } else {
+            printf("thread %d wait %d done\n", sync_data->thread_no, i);
+        }
+        info = sync_fence_info(sync_data->fd[i]);
+        if (info) {
+            struct sync_pt_info *pt_info = NULL;
+            printf("  fence %s %d\n", info->name, info->status);
+
+            while ((pt_info = sync_pt_info(info, pt_info))) {
+                int ts_sec = pt_info->timestamp_ns / 1000000000LL;
+                int ts_usec = (pt_info->timestamp_ns % 1000000000LL) / 1000LL;
+                printf("    pt %s %s %d %d.%06d", pt_info->obj_name,
+                       pt_info->driver_name, pt_info->status,
+                       ts_sec, ts_usec);
+                if (!strcmp(pt_info->driver_name, "sw_sync"))
+                    printf(" val=%d\n", *(uint32_t *)pt_info->driver_data);
+                else
+                    printf("\n");
+            }
+            sync_fence_info_free(info);
+        }
+        pthread_mutex_unlock(&printf_mutex);
+    }
+
+    return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+    struct sync_thread_data sync_data[4];
+    pthread_t threads[4];
+    int sync_timeline_fd;
+    int i, j;
+    char str[256];
+
+    sync_timeline_fd = sw_sync_timeline_create();
+    if (sync_timeline_fd < 0) {
+        perror("can't create sw_sync_timeline:");
+        return 1;
+    }
+
+    for (i = 0; i < 3; i++) {
+        sync_data[i].thread_no = i;
+
+        for (j = 0; j < 2; j++) {
+            unsigned val = i + j * 3 + 1;
+            sprintf(str, "test_fence%d-%d", i, j);
+            int fd = sw_sync_fence_create(sync_timeline_fd, str, val);
+            if (fd < 0) {
+                printf("can't create sync pt %d: %s", val, strerror(errno));
+                return 1;
+            }
+            sync_data[i].fd[j] = fd;
+            printf("sync_data[%d].fd[%d] = %d;\n", i, j, fd);
+
+        }
+    }
+
+    sync_data[3].thread_no = 3;
+    for (j = 0; j < 2; j++) {
+        sprintf(str, "merged_fence%d", j);
+        sync_data[3].fd[j] = sync_merge(str, sync_data[0].fd[j], sync_data[1].fd[j]);
+        if (sync_data[3].fd[j] < 0) {
+            printf("can't merge sync pts %d and %d: %s\n",
+                   sync_data[0].fd[j], sync_data[1].fd[j], strerror(errno));
+            return 1;
+        }
+    }
+
+    for (i = 0; i < 4; i++)
+        pthread_create(&threads[i], NULL, sync_thread, &sync_data[i]);
+
+
+    for (i = 0; i < 3; i++) {
+        int err;
+        printf("press enter to inc to %d\n", i+1);
+        fgets(str, sizeof(str), stdin);
+        err = sw_sync_timeline_inc(sync_timeline_fd, 1);
+        if (err < 0) {
+            perror("can't increment sync obj:");
+            return 1;
+        }
+    }
+
+    printf("press enter to close sync_timeline\n");
+    fgets(str, sizeof(str), stdin);
+
+    close(sync_timeline_fd);
+
+    printf("press enter to end test\n");
+    fgets(str, sizeof(str), stdin);
+
+    for (i = 0; i < 3; i++) {
+        void *val;
+        pthread_join(threads[i], &val);
+    }
+
+    return 0;
+}
diff --git a/libsysutils/Android.mk b/libsysutils/Android.mk
index cccf484..57cc313 100644
--- a/libsysutils/Android.mk
+++ b/libsysutils/Android.mk
@@ -12,6 +12,7 @@
                   src/FrameworkCommand.cpp    \
                   src/SocketClient.cpp        \
                   src/ServiceManager.cpp      \
+                  EventLogTags.logtags
 
 LOCAL_MODULE:= libsysutils
 
diff --git a/libsysutils/EventLogTags.logtags b/libsysutils/EventLogTags.logtags
new file mode 100644
index 0000000..7aa5cad
--- /dev/null
+++ b/libsysutils/EventLogTags.logtags
@@ -0,0 +1,5 @@
+# See system/core/logcat/event.logtags for a description of the format of this file.
+
+# FrameworkListener dispatchCommand overflow
+78001 dispatchCommand_overflow
+65537 netlink_failure (uid|1)
diff --git a/libsysutils/src/FrameworkListener.cpp b/libsysutils/src/FrameworkListener.cpp
index 3416ceb..6731cf1 100644
--- a/libsysutils/src/FrameworkListener.cpp
+++ b/libsysutils/src/FrameworkListener.cpp
@@ -25,9 +25,21 @@
 #include <sysutils/FrameworkCommand.h>
 #include <sysutils/SocketClient.h>
 
+FrameworkListener::FrameworkListener(const char *socketName, bool withSeq) :
+                            SocketListener(socketName, true, withSeq) {
+    init(socketName, withSeq);
+}
+
 FrameworkListener::FrameworkListener(const char *socketName) :
-                            SocketListener(socketName, true) {
+                            SocketListener(socketName, true, false) {
+    init(socketName, false);
+}
+
+void FrameworkListener::init(const char *socketName, bool withSeq) {
     mCommands = new FrameworkCommandCollection();
+    errorRate = 0;
+    mCommandCount = 0;
+    mWithSeq = withSeq;
 }
 
 bool FrameworkListener::onDataAvailable(SocketClient *c) {
@@ -69,6 +81,7 @@
     bool esc = false;
     bool quote = false;
     int k;
+    bool haveCmdNum = !mWithSeq;
 
     memset(argv, 0, sizeof(argv));
     memset(tmp, 0, sizeof(tmp));
@@ -115,9 +128,20 @@
         *q = *p++;
         if (!quote && *q == ' ') {
             *q = '\0';
-            if (argc >= CMD_ARGS_MAX)
-                goto overflow;
-            argv[argc++] = strdup(tmp);
+            if (!haveCmdNum) {
+                char *endptr;
+                int cmdNum = (int)strtol(tmp, &endptr, 0);
+                if (endptr == NULL || *endptr != '\0') {
+                    cli->sendMsg(500, "Invalid sequence number", false);
+                    goto out;
+                }
+                cli->setCmdNum(cmdNum);
+                haveCmdNum = true;
+            } else {
+                if (argc >= CMD_ARGS_MAX)
+                    goto overflow;
+                argv[argc++] = strdup(tmp);
+            }
             memset(tmp, 0, sizeof(tmp));
             q = tmp;
             continue;
@@ -140,6 +164,12 @@
         goto out;
     }
 
+    if (errorRate && (++mCommandCount % errorRate == 0)) {
+        /* ignore this command - let the timeout handler handle it */
+        SLOGE("Faking a timeout");
+        goto out;
+    }
+
     for (i = mCommands->begin(); i != mCommands->end(); ++i) {
         FrameworkCommand *c = *i;
 
@@ -159,6 +189,7 @@
     return;
 
 overflow:
+    LOG_EVENT_INT(78001, cli->getUid());
     cli->sendMsg(500, "Command too long", false);
     goto out;
 }
diff --git a/libsysutils/src/NetlinkListener.cpp b/libsysutils/src/NetlinkListener.cpp
index e67b5c6..9c447ca 100644
--- a/libsysutils/src/NetlinkListener.cpp
+++ b/libsysutils/src/NetlinkListener.cpp
@@ -45,9 +45,13 @@
 {
     int socket = cli->getSocket();
     ssize_t count;
+    uid_t uid = -1;
 
-    count = TEMP_FAILURE_RETRY(uevent_kernel_multicast_recv(socket, mBuffer, sizeof(mBuffer)));
+    count = TEMP_FAILURE_RETRY(uevent_kernel_multicast_uid_recv(
+                                       socket, mBuffer, sizeof(mBuffer), &uid));
     if (count < 0) {
+        if (uid > 0)
+            LOG_EVENT_INT(65537, uid);
         SLOGE("recvmsg failed (%s)", strerror(errno));
         return false;
     }
diff --git a/libsysutils/src/SocketClient.cpp b/libsysutils/src/SocketClient.cpp
index 722dcb2..3d4984d 100644
--- a/libsysutils/src/SocketClient.cpp
+++ b/libsysutils/src/SocketClient.cpp
@@ -4,22 +4,32 @@
 #include <sys/types.h>
 #include <pthread.h>
 #include <string.h>
+#include <arpa/inet.h>
 
 #define LOG_TAG "SocketClient"
 #include <cutils/log.h>
 
 #include <sysutils/SocketClient.h>
 
-SocketClient::SocketClient(int socket, bool owned)
-        : mSocket(socket)
-        , mSocketOwned(owned)
-        , mPid(-1)
-        , mUid(-1)
-        , mGid(-1)
-        , mRefCount(1)
-{
+SocketClient::SocketClient(int socket, bool owned) {
+    init(socket, owned, false);
+}
+
+SocketClient::SocketClient(int socket, bool owned, bool useCmdNum) {
+    init(socket, owned, useCmdNum);
+}
+
+void SocketClient::init(int socket, bool owned, bool useCmdNum) {
+    mSocket = socket;
+    mSocketOwned = owned;
+    mUseCmdNum = useCmdNum;
     pthread_mutex_init(&mWriteMutex, NULL);
     pthread_mutex_init(&mRefCountMutex, NULL);
+    mPid = -1;
+    mUid = -1;
+    mGid = -1;
+    mRefCount = 1;
+    mCmdNum = 0;
 
     struct ucred creds;
     socklen_t szCreds = sizeof(creds);
@@ -41,34 +51,86 @@
 }
 
 int SocketClient::sendMsg(int code, const char *msg, bool addErrno) {
-    char *buf;
-    const char* arg;
-    const char* fmt;
-    char tmp[1];
-    int  len;
-
-    if (addErrno) {
-        fmt = "%.3d %s (%s)";
-        arg = strerror(errno);
-    } else {
-        fmt = "%.3d %s";
-        arg = NULL;
-    }
-    /* Measure length of required buffer */
-    len = snprintf(tmp, sizeof tmp, fmt, code, msg, arg);
-    /* Allocate in the stack, then write to it */
-    buf = (char*)alloca(len+1);
-    snprintf(buf, len+1, fmt, code, msg, arg);
-    /* Send the zero-terminated message */
-    return sendMsg(buf);
+    return sendMsg(code, msg, addErrno, mUseCmdNum);
 }
 
-int SocketClient::sendMsg(const char *msg) {
-    if (mSocket < 0) {
-        errno = EHOSTUNREACH;
-        return -1;
-    }
+int SocketClient::sendMsg(int code, const char *msg, bool addErrno, bool useCmdNum) {
+    char *buf;
+    int ret = 0;
 
+    if (addErrno) {
+        if (useCmdNum) {
+            ret = asprintf(&buf, "%d %d %s (%s)", code, getCmdNum(), msg, strerror(errno));
+        } else {
+            ret = asprintf(&buf, "%d %s (%s)", code, msg, strerror(errno));
+        }
+    } else {
+        if (useCmdNum) {
+            ret = asprintf(&buf, "%d %d %s", code, getCmdNum(), msg);
+        } else {
+            ret = asprintf(&buf, "%d %s", code, msg);
+        }
+    }
+    /* Send the zero-terminated message */
+    if (ret != -1) {
+        ret = sendMsg(buf);
+        free(buf);
+    }
+    return ret;
+}
+
+/** send 3-digit code, null, binary-length, binary data */
+int SocketClient::sendBinaryMsg(int code, const void *data, int len) {
+
+    /* 4 bytes for the code & null + 4 bytes for the len */
+    char buf[8];
+    /* Write the code */
+    snprintf(buf, 4, "%.3d", code);
+    /* Write the len */
+    uint32_t tmp = htonl(len);
+    memcpy(buf + 4, &tmp, sizeof(uint32_t));
+
+    pthread_mutex_lock(&mWriteMutex);
+    int result = sendDataLocked(buf, sizeof(buf));
+    if (result == 0 && len > 0) {
+        result = sendDataLocked(data, len);
+    }
+    pthread_mutex_unlock(&mWriteMutex);
+
+    return result;
+}
+
+// Sends the code (c-string null-terminated).
+int SocketClient::sendCode(int code) {
+    char buf[4];
+    snprintf(buf, sizeof(buf), "%.3d", code);
+    return sendData(buf, sizeof(buf));
+}
+
+char *SocketClient::quoteArg(const char *arg) {
+    int len = strlen(arg);
+    char *result = (char *)malloc(len * 2 + 3);
+    char *current = result;
+    const char *end = arg + len;
+
+    *(current++) = '"';
+    while (arg < end) {
+        switch (*arg) {
+        case '\\':
+        case '"':
+            *(current++) = '\\'; // fallthrough
+        default:
+            *(current++) = *(arg++);
+        }
+    }
+    *(current++) = '"';
+    *(current++) = '\0';
+    result = (char *)realloc(result, current-result);
+    return result;
+}
+
+
+int SocketClient::sendMsg(const char *msg) {
     // Send the message including null character
     if (sendData(msg, strlen(msg) + 1) != 0) {
         SLOGW("Unable to send msg '%s'", msg);
@@ -77,18 +139,31 @@
     return 0;
 }
 
-int SocketClient::sendData(const void* data, int len) {
+int SocketClient::sendData(const void *data, int len) {
+
+    pthread_mutex_lock(&mWriteMutex);
+    int rc = sendDataLocked(data, len);
+    pthread_mutex_unlock(&mWriteMutex);
+
+    return rc;
+}
+
+int SocketClient::sendDataLocked(const void *data, int len) {
     int rc = 0;
     const char *p = (const char*) data;
     int brtw = len;
 
+    if (mSocket < 0) {
+        errno = EHOSTUNREACH;
+        return -1;
+    }
+
     if (len == 0) {
         return 0;
     }
 
-    pthread_mutex_lock(&mWriteMutex);
     while (brtw > 0) {
-        rc = write(mSocket, p, brtw);
+        rc = send(mSocket, p, brtw, MSG_NOSIGNAL);
         if (rc > 0) {
             p += rc;
             brtw -= rc;
@@ -98,7 +173,6 @@
         if (rc < 0 && errno == EINTR)
             continue;
 
-        pthread_mutex_unlock(&mWriteMutex);
         if (rc == 0) {
             SLOGW("0 length write :(");
             errno = EIO;
@@ -107,7 +181,6 @@
         }
         return -1;
     }
-    pthread_mutex_unlock(&mWriteMutex);
     return 0;
 }
 
diff --git a/libsysutils/src/SocketListener.cpp b/libsysutils/src/SocketListener.cpp
index 3f871ea..0361641 100644
--- a/libsysutils/src/SocketListener.cpp
+++ b/libsysutils/src/SocketListener.cpp
@@ -29,18 +29,25 @@
 #include <sysutils/SocketListener.h>
 #include <sysutils/SocketClient.h>
 
+#define LOG_NDEBUG 0
+
 SocketListener::SocketListener(const char *socketName, bool listen) {
-    mListen = listen;
-    mSocketName = socketName;
-    mSock = -1;
-    pthread_mutex_init(&mClientsLock, NULL);
-    mClients = new SocketClientCollection();
+    init(socketName, -1, listen, false);
 }
 
 SocketListener::SocketListener(int socketFd, bool listen) {
+    init(NULL, socketFd, listen, false);
+}
+
+SocketListener::SocketListener(const char *socketName, bool listen, bool useCmdNum) {
+    init(socketName, -1, listen, useCmdNum);
+}
+
+void SocketListener::init(const char *socketName, int socketFd, bool listen, bool useCmdNum) {
     mListen = listen;
-    mSocketName = NULL;
+    mSocketName = socketName;
     mSock = socketFd;
+    mUseCmdNum = useCmdNum;
     pthread_mutex_init(&mClientsLock, NULL);
     mClients = new SocketClientCollection();
 }
@@ -73,13 +80,14 @@
                  mSocketName, strerror(errno));
             return -1;
         }
+        SLOGV("got mSock = %d for %s", mSock, mSocketName);
     }
 
     if (mListen && listen(mSock, 4) < 0) {
         SLOGE("Unable to listen on socket (%s)", strerror(errno));
         return -1;
     } else if (!mListen)
-        mClients->push_back(new SocketClient(mSock, false));
+        mClients->push_back(new SocketClient(mSock, false, mUseCmdNum));
 
     if (pipe(mCtrlPipe)) {
         SLOGE("pipe failed (%s)", strerror(errno));
@@ -164,11 +172,11 @@
                 max = fd;
         }
         pthread_mutex_unlock(&mClientsLock);
-
+        SLOGV("mListen=%d, max=%d, mSocketName=%s", mListen, max, mSocketName);
         if ((rc = select(max + 1, &read_fds, NULL, NULL, NULL)) < 0) {
             if (errno == EINTR)
                 continue;
-            SLOGE("select failed (%s)", strerror(errno));
+            SLOGE("select failed (%s) mListen=%d, max=%d", strerror(errno), mListen, max);
             sleep(1);
             continue;
         } else if (!rc)
@@ -184,6 +192,7 @@
             do {
                 alen = sizeof(addr);
                 c = accept(mSock, &addr, &alen);
+                SLOGV("%s got %d from accept", mSocketName, c);
             } while (c < 0 && errno == EINTR);
             if (c < 0) {
                 SLOGE("accept failed (%s)", strerror(errno));
@@ -191,7 +200,7 @@
                 continue;
             }
             pthread_mutex_lock(&mClientsLock);
-            mClients->push_back(new SocketClient(c, true));
+            mClients->push_back(new SocketClient(c, true, mUseCmdNum));
             pthread_mutex_unlock(&mClientsLock);
         }
 
@@ -217,6 +226,7 @@
              * connection-based, remove and destroy it */
             if (!onDataAvailable(c) && mListen) {
                 /* Remove the client from our array */
+                SLOGV("going to zap %d for %s", c->getSocket(), mSocketName);
                 pthread_mutex_lock(&mClientsLock);
                 for (it = mClients->begin(); it != mClients->end(); ++it) {
                     if (*it == c) {
@@ -238,19 +248,8 @@
     SocketClientCollection::iterator i;
 
     for (i = mClients->begin(); i != mClients->end(); ++i) {
-        if ((*i)->sendMsg(code, msg, addErrno)) {
-            SLOGW("Error sending broadcast (%s)", strerror(errno));
-        }
-    }
-    pthread_mutex_unlock(&mClientsLock);
-}
-
-void SocketListener::sendBroadcast(const char *msg) {
-    pthread_mutex_lock(&mClientsLock);
-    SocketClientCollection::iterator i;
-
-    for (i = mClients->begin(); i != mClients->end(); ++i) {
-        if ((*i)->sendMsg(msg)) {
+        // broadcasts are unsolicited and should not include a cmd number
+        if ((*i)->sendMsg(code, msg, addErrno, false)) {
             SLOGW("Error sending broadcast (%s)", strerror(errno));
         }
     }
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index ae56c41..b71ce86 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -253,7 +253,7 @@
     int max = 0;
     int ret;
     int queued_lines = 0;
-    bool sleep = true;
+    bool sleep = false;
 
     int result;
     fd_set readset;
diff --git a/nexus/Android.mk b/nexus/Android.mk
deleted file mode 100644
index f9f7110..0000000
--- a/nexus/Android.mk
+++ /dev/null
@@ -1,66 +0,0 @@
-BUILD_NEXUS := false
-ifeq ($(BUILD_NEXUS),true)
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:=                                      \
-                  main.cpp                             \
-                  NexusCommand.cpp                     \
-                  CommandListener.cpp                  \
-                  Property.cpp                         \
-                  PropertyManager.cpp                  \
-                  InterfaceConfig.cpp                  \
-                  NetworkManager.cpp                   \
-                  Controller.cpp                       \
-                  WifiController.cpp                   \
-                  TiwlanWifiController.cpp             \
-                  TiwlanEventListener.cpp              \
-                  WifiNetwork.cpp                      \
-                  WifiStatusPoller.cpp                 \
-                  ScanResult.cpp                       \
-                  Supplicant.cpp                       \
-                  SupplicantEvent.cpp                  \
-                  SupplicantListener.cpp               \
-                  SupplicantState.cpp                  \
-                  SupplicantEventFactory.cpp           \
-                  SupplicantConnectedEvent.cpp         \
-                  SupplicantAssociatingEvent.cpp       \
-                  SupplicantAssociatedEvent.cpp        \
-                  SupplicantStateChangeEvent.cpp       \
-                  SupplicantScanResultsEvent.cpp       \
-                  SupplicantConnectionTimeoutEvent.cpp \
-                  SupplicantDisconnectedEvent.cpp      \
-                  SupplicantStatus.cpp                 \
-                  OpenVpnController.cpp                \
-                  VpnController.cpp                    \
-                  LoopController.cpp                   \
-                  DhcpClient.cpp DhcpListener.cpp      \
-                  DhcpState.cpp DhcpEvent.cpp          \
-
-LOCAL_MODULE:= nexus
-
-LOCAL_C_INCLUDES := $(KERNEL_HEADERS) -I../../../frameworks/base/include/
-
-LOCAL_CFLAGS := 
-
-LOCAL_SHARED_LIBRARIES := libsysutils libwpa_client
-
-include $(BUILD_EXECUTABLE)
-
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES:=          \
-                  nexctl.c \
-
-LOCAL_MODULE:= nexctl
-
-LOCAL_C_INCLUDES := $(KERNEL_HEADERS)
-
-LOCAL_CFLAGS := 
-
-LOCAL_SHARED_LIBRARIES := libcutils
-
-include $(BUILD_EXECUTABLE)
-
-endif # ifeq ($(BUILD_NEXUS),true)
diff --git a/nexus/CommandListener.cpp b/nexus/CommandListener.cpp
deleted file mode 100644
index 7c934a7..0000000
--- a/nexus/CommandListener.cpp
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <errno.h>
-
-#define LOG_TAG "CommandListener"
-#include <cutils/log.h>
-
-#include <sysutils/SocketClient.h>
-
-#include "CommandListener.h"
-#include "Controller.h"
-#include "Property.h"
-#include "NetworkManager.h"
-#include "WifiController.h"
-#include "VpnController.h"
-#include "ResponseCode.h"
-
-CommandListener::CommandListener() :
-                 FrameworkListener("nexus") {
-    registerCmd(new WifiScanResultsCmd());
-    registerCmd(new WifiListNetworksCmd());
-    registerCmd(new WifiCreateNetworkCmd());
-    registerCmd(new WifiRemoveNetworkCmd());
-
-    registerCmd(new GetCmd());
-    registerCmd(new SetCmd());
-    registerCmd(new ListCmd());
-}
-
-/* -------------
- * Wifi Commands
- * ------------ */
-
-CommandListener::WifiCreateNetworkCmd::WifiCreateNetworkCmd() :
-                 NexusCommand("wifi_create_network") {
-}
-
-int CommandListener::WifiCreateNetworkCmd::runCommand(SocketClient *cli,
-                                                      int argc, char **argv) {
-    NetworkManager *nm = NetworkManager::Instance();
-    WifiController *wc = (WifiController *) nm->findController("WIFI");
-    WifiNetwork *wn;
-
-    if (!(wn = wc->createNetwork()))
-        cli->sendMsg(ResponseCode::OperationFailed, "Failed to create network", true);
-    else {
-        char tmp[128];
-        sprintf(tmp, "Created network id %d.", wn->getNetworkId());
-        cli->sendMsg(ResponseCode::CommandOkay, tmp, false);
-    }
-    return 0;
-}
-
-CommandListener::WifiRemoveNetworkCmd::WifiRemoveNetworkCmd() :
-                 NexusCommand("wifi_remove_network") {
-}
-
-int CommandListener::WifiRemoveNetworkCmd::runCommand(SocketClient *cli,
-                                                      int argc, char **argv) {
-    NetworkManager *nm = NetworkManager::Instance();
-    WifiController *wc = (WifiController *) nm->findController("WIFI");
-
-    if (wc->removeNetwork(atoi(argv[1])))
-        cli->sendMsg(ResponseCode::OperationFailed, "Failed to remove network", true);
-    else {
-        cli->sendMsg(ResponseCode::CommandOkay, "Network removed.", false);
-    }
-    return 0;
-}
-
-CommandListener::WifiScanResultsCmd::WifiScanResultsCmd() :
-                 NexusCommand("wifi_scan_results") {
-}
-
-int CommandListener::WifiScanResultsCmd::runCommand(SocketClient *cli,
-                                                    int argc, char **argv) {
-    NetworkManager *nm = NetworkManager::Instance();
-    WifiController *wc = (WifiController *) nm->findController("WIFI");
-
-    ScanResultCollection *src = wc->createScanResults();
-    ScanResultCollection::iterator it;
-    char buffer[256];
-
-    for(it = src->begin(); it != src->end(); ++it) {
-        sprintf(buffer, "%s %u %d %s %s",
-                (*it)->getBssid(), (*it)->getFreq(), (*it)->getLevel(),
-                (*it)->getFlags(), (*it)->getSsid());
-        cli->sendMsg(ResponseCode::WifiScanResult, buffer, false);
-        delete (*it);
-        it = src->erase(it);
-    }
-
-    delete src;
-    cli->sendMsg(ResponseCode::CommandOkay, "Scan results complete.", false);
-    return 0;
-}
-
-CommandListener::WifiListNetworksCmd::WifiListNetworksCmd() :
-                 NexusCommand("wifi_list_networks") {
-}
-
-int CommandListener::WifiListNetworksCmd::runCommand(SocketClient *cli,
-                                                     int argc, char **argv) {
-    NetworkManager *nm = NetworkManager::Instance();
-    WifiController *wc = (WifiController *) nm->findController("WIFI");
-
-    WifiNetworkCollection *src = wc->createNetworkList();
-    WifiNetworkCollection::iterator it;
-    char buffer[256];
-
-    for(it = src->begin(); it != src->end(); ++it) {
-        sprintf(buffer, "%d:%s", (*it)->getNetworkId(), (*it)->getSsid());
-        cli->sendMsg(ResponseCode::WifiNetworkList, buffer, false);
-        delete (*it);
-    }
-
-    delete src;
-    cli->sendMsg(ResponseCode::CommandOkay, "Network listing complete.", false);
-    return 0;
-}
-
-/* ------------
- * Vpn Commands
- * ------------ */
-
-/* ----------------
- * Generic Commands
- * ---------------- */
-CommandListener::GetCmd::GetCmd() :
-                 NexusCommand("get") {
-}
-
-int CommandListener::GetCmd::runCommand(SocketClient *cli, int argc, char **argv) {
-    char val[Property::ValueMaxSize];
-
-    if (!NetworkManager::Instance()->getPropMngr()->get(argv[1],
-                                                        val,
-                                                        sizeof(val))) {
-        goto out_inval;
-    }
-
-    char *tmp;
-    asprintf(&tmp, "%s %s", argv[1], val);
-    cli->sendMsg(ResponseCode::PropertyRead, tmp, false);
-    free(tmp);
-
-    cli->sendMsg(ResponseCode::CommandOkay, "Property read.", false);
-    return 0;
-out_inval:
-    errno = EINVAL;
-    cli->sendMsg(ResponseCode::CommandParameterError, "Failed to read property.", true);
-    return 0;
-}
-
-CommandListener::SetCmd::SetCmd() :
-                 NexusCommand("set") {
-}
-
-int CommandListener::SetCmd::runCommand(SocketClient *cli, int argc,
-                                        char **argv) {
-    if (NetworkManager::Instance()->getPropMngr()->set(argv[1], argv[2]))
-        goto out_inval;
-
-    cli->sendMsg(ResponseCode::CommandOkay, "Property set.", false);
-    return 0;
-
-out_inval:
-    errno = EINVAL;
-    cli->sendMsg(ResponseCode::CommandParameterError, "Failed to set property.", true);
-    return 0;
-}
-
-CommandListener::ListCmd::ListCmd() :
-                 NexusCommand("list") {
-}
-
-int CommandListener::ListCmd::runCommand(SocketClient *cli, int argc, char **argv) {
-    android::List<char *> *pc;
-    char *prefix = NULL;
-
-    if (argc > 1)
-        prefix = argv[1];
-
-    if (!(pc = NetworkManager::Instance()->getPropMngr()->createPropertyList(prefix))) {
-        errno = ENODATA;
-        cli->sendMsg(ResponseCode::CommandParameterError, "Failed to list properties.", true);
-        return 0;
-    }
-
-    android::List<char *>::iterator it;
-
-    for (it = pc->begin(); it != pc->end(); ++it) {
-        char p_v[Property::ValueMaxSize];
-
-        if (!NetworkManager::Instance()->getPropMngr()->get((*it),
-                                                            p_v,
-                                                            sizeof(p_v))) {
-            ALOGW("Failed to get %s (%s)", (*it), strerror(errno));
-        }
-
-        char *buf;
-        if (asprintf(&buf, "%s %s", (*it), p_v) < 0) {
-            ALOGE("Failed to allocate memory");
-            free((*it));
-            continue;
-        }
-        cli->sendMsg(ResponseCode::PropertyList, buf, false);
-        free(buf);
-
-        free((*it));
-    }
-
-    delete pc;
-
-    cli->sendMsg(ResponseCode::CommandOkay, "Properties list complete.", false);
-    return 0;
-}
diff --git a/nexus/CommandListener.h b/nexus/CommandListener.h
deleted file mode 100644
index 30c6dc0..0000000
--- a/nexus/CommandListener.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _COMMANDLISTENER_H__
-#define _COMMANDLISTENER_H__
-
-#include <sysutils/FrameworkListener.h>
-#include "NexusCommand.h"
-
-class CommandListener : public FrameworkListener {
-public:
-    CommandListener();
-    virtual ~CommandListener() {}
-
-private:
-
-    class WifiScanCmd : public NexusCommand {
-    public:
-        WifiScanCmd();
-        virtual ~WifiScanCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class WifiScanResultsCmd : public NexusCommand {
-    public:
-        WifiScanResultsCmd();
-        virtual ~WifiScanResultsCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class WifiCreateNetworkCmd : public NexusCommand {
-    public:
-        WifiCreateNetworkCmd();
-        virtual ~WifiCreateNetworkCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class WifiRemoveNetworkCmd : public NexusCommand {
-    public:
-        WifiRemoveNetworkCmd();
-        virtual ~WifiRemoveNetworkCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class WifiListNetworksCmd : public NexusCommand {
-    public:
-        WifiListNetworksCmd();
-        virtual ~WifiListNetworksCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class SetCmd : public NexusCommand {
-    public:
-        SetCmd();
-        virtual ~SetCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class GetCmd : public NexusCommand {
-    public:
-        GetCmd();
-        virtual ~GetCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
-    class ListCmd : public NexusCommand {
-    public:
-        ListCmd();
-        virtual ~ListCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-};
-
-#endif
diff --git a/nexus/Controller.cpp b/nexus/Controller.cpp
deleted file mode 100644
index dae8783..0000000
--- a/nexus/Controller.cpp
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <malloc.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#define LOG_TAG "Controller"
-
-#include <cutils/log.h>
-
-#include "Controller.h"
-#include "InterfaceConfig.h"
-
-extern "C" int init_module(void *, unsigned int, const char *);
-extern "C" int delete_module(const char *, unsigned int);
-
-Controller::Controller(const char *name, PropertyManager *propMngr,
-                       IControllerHandler *handlers) {
-    mPropMngr = propMngr;
-    mName = strdup(name);
-    mHandlers = handlers;
-    mBoundInterface = NULL;
-}
-
-Controller::~Controller() {
-    if (mBoundInterface)
-        free(mBoundInterface);
-    if (mName)
-        free(mName);
-}
-
-int Controller::start() {
-    return 0;
-}
-
-int Controller::stop() {
-    return 0;
-}
-
-int Controller::loadKernelModule(char *modpath, const char *args) {
-    void *module;
-    unsigned int size;
-
-    module = loadFile(modpath, &size);
-    if (!module) {
-        errno = -EIO;
-        return -1;
-    }
-
-    int rc = init_module(module, size, args);
-    free (module);
-    return rc;
-}
-
-int Controller::unloadKernelModule(const char *modtag) {
-    int rc = -1;
-    int retries = 10;
-
-    while (retries--) {
-        rc = delete_module(modtag, O_NONBLOCK | O_EXCL);
-        if (rc < 0 && errno == EAGAIN)
-            usleep(1000*500);
-        else
-            break;
-    }
-
-    if (rc != 0) {
-        ALOGW("Unable to unload kernel driver '%s' (%s)", modtag,
-             strerror(errno));
-    }
-    return rc;
-}
-
-bool Controller::isKernelModuleLoaded(const char *modtag) {
-    FILE *fp = fopen("/proc/modules", "r");
-
-    if (!fp) {
-        ALOGE("Unable to open /proc/modules (%s)", strerror(errno));
-        return false;
-    }
-
-    char line[255];
-    while(fgets(line, sizeof(line), fp)) {
-        char *endTag = strchr(line, ' ');
-
-        if (!endTag) {
-            ALOGW("Unable to find tag for line '%s'", line);
-            continue;
-        }
-        if (!strncmp(line, modtag, (endTag - line))) {
-            fclose(fp);
-            return true;
-        }
-    }
-
-    fclose(fp);
-    return false;
-}
-
-void *Controller::loadFile(char *filename, unsigned int *_size)
-{
-	int ret, fd;
-	struct stat sb;
-	ssize_t size;
-	void *buffer = NULL;
-
-	/* open the file */
-	fd = open(filename, O_RDONLY);
-	if (fd < 0)
-		return NULL;
-
-	/* find out how big it is */
-	if (fstat(fd, &sb) < 0)
-		goto bail;
-	size = sb.st_size;
-
-	/* allocate memory for it to be read into */
-	buffer = malloc(size);
-	if (!buffer)
-		goto bail;
-
-	/* slurp it into our buffer */
-	ret = read(fd, buffer, size);
-	if (ret != size)
-		goto bail;
-
-	/* let the caller know how big it is */
-	*_size = size;
-
-bail:
-	close(fd);
-	return buffer;
-}
-
-int Controller::bindInterface(const char *ifname) {
-    mBoundInterface = strdup(ifname);
-    return 0;
-}
-
-int Controller::unbindInterface(const char *ifname) {
-    free(mBoundInterface);
-    mBoundInterface = NULL;
-    return 0;
-}
diff --git a/nexus/Controller.h b/nexus/Controller.h
deleted file mode 100644
index e7e17c5..0000000
--- a/nexus/Controller.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _CONTROLLER_H
-#define _CONTROLLER_H
-
-#include <unistd.h>
-#include <sys/types.h>
-
-#include <utils/List.h>
-
-class PropertyManager;
-class IControllerHandler;
-
-#include "PropertyManager.h"
-
-class Controller {
-    /*
-     * Name of this controller - WIFI/VPN/USBNET/BTNET/BTDUN/LOOP/etc
-     */
-    char *mName;
-
-    /*
-     * Name of the system ethernet interface which this controller is
-     * bound to.
-     */
-    char *mBoundInterface;
-
-protected:
-    PropertyManager *mPropMngr;
-    IControllerHandler *mHandlers;
-    
-public:
-    Controller(const char *name, PropertyManager *propMngr,
-               IControllerHandler *handlers);
-    virtual ~Controller();
-
-    virtual int start();
-    virtual int stop();
-
-    const char *getName() { return mName; }
-    const char *getBoundInterface() { return mBoundInterface; }
-    
-protected:
-    int loadKernelModule(char *modpath, const char *args);
-    bool isKernelModuleLoaded(const char *modtag);
-    int unloadKernelModule(const char *modtag);
-    int bindInterface(const char *ifname);
-    int unbindInterface(const char *ifname);
-
-private:
-    void *loadFile(char *filename, unsigned int *_size);
-};
-
-typedef android::List<Controller *> ControllerCollection;
-#endif
diff --git a/nexus/DhcpClient.cpp b/nexus/DhcpClient.cpp
deleted file mode 100644
index 81fdf47..0000000
--- a/nexus/DhcpClient.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <pthread.h>
-
-#define LOG_TAG "DhcpClient"
-#include <cutils/log.h>
-#include <cutils/properties.h>
-
-#include <sysutils/ServiceManager.h>
-
-#include <netutils/ifc.h>
-#include <netutils/dhcp.h>
-
-#include "DhcpClient.h"
-#include "DhcpState.h"
-#include "DhcpListener.h"
-#include "IDhcpEventHandlers.h"
-#include "Controller.h"
-
-DhcpClient::DhcpClient(IDhcpEventHandlers *handlers) :
-            mState(DhcpState::INIT), mHandlers(handlers) {
-    mServiceManager = new ServiceManager();
-    mListener = NULL;
-    mListenerSocket = NULL;
-    mController = NULL;
-    mDoArpProbe = false;
-    pthread_mutex_init(&mLock, NULL);
-}
-
-DhcpClient::~DhcpClient() {
-    delete mServiceManager;
-    if (mListener)
-        delete mListener;
-}
-
-int DhcpClient::start(Controller *c) {
-    ALOGD("Starting DHCP service (arp probe = %d)", mDoArpProbe);
-    char svc[PROPERTY_VALUE_MAX];
-    snprintf(svc,
-             sizeof(svc),
-             "dhcpcd:%s%s",
-             (!mDoArpProbe ? "-A " : ""),
-             c->getBoundInterface());
-
-    pthread_mutex_lock(&mLock);
-
-    if (mController) {
-        pthread_mutex_unlock(&mLock);
-        errno = EBUSY;
-        return -1;
-    }
-    mController = c;
-
-    sockaddr_in addr;
-    if ((mListenerSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
-        ALOGE("Failed to create DHCP listener socket");
-        pthread_mutex_unlock(&mLock);
-        return -1;
-    }
-    memset(&addr, 0, sizeof(addr));
-    addr.sin_family = AF_INET;
-    addr.sin_addr.s_addr = inet_addr("127.0.0.1");
-    addr.sin_port = htons(DhcpClient::STATUS_MONITOR_PORT);
-
-    if (bind(mListenerSocket, (struct sockaddr *) &addr, sizeof(addr))) {
-        ALOGE("Failed to bind DHCP listener socket");
-        close(mListenerSocket);
-        mListenerSocket = -1;
-        pthread_mutex_unlock(&mLock);
-        return -1;
-    }
-
-    if (mServiceManager->start(svc)) {
-        ALOGE("Failed to start dhcp service");
-        pthread_mutex_unlock(&mLock);
-        return -1;
-    }
-
-    mListener = new DhcpListener(mController, mListenerSocket, mHandlers);
-    if (mListener->startListener()) {
-        ALOGE("Failed to start listener");
-#if 0
-        mServiceManager->stop("dhcpcd");
-        return -1;
-#endif
-        delete mListener;
-        mListener = NULL;
-        pthread_mutex_unlock(&mLock);
-    }
-
-    pthread_mutex_unlock(&mLock);
-    return 0;
-}
-
-int DhcpClient::stop() {
-    pthread_mutex_lock(&mLock);
-    if (!mController) {
-        pthread_mutex_unlock(&mLock);
-        return 0;
-    }
-
-    if (mListener) {
-        mListener->stopListener();
-        delete mListener;
-        mListener = NULL;
-    }
-    close(mListenerSocket);
-
-    if (mServiceManager->stop("dhcpcd")) {
-        ALOGW("Failed to stop DHCP service (%s)", strerror(errno));
-        // XXX: Kill it the hard way.. but its gotta go!
-    }
-
-    mController = NULL;
-    pthread_mutex_unlock(&mLock);
-    return 0;
-}
-
-void DhcpClient::setDoArpProbe(bool probe) {
-    mDoArpProbe = probe;
-}
diff --git a/nexus/DhcpClient.h b/nexus/DhcpClient.h
deleted file mode 100644
index 42bfda0..0000000
--- a/nexus/DhcpClient.h
+++ /dev/null
@@ -1,54 +0,0 @@
-
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _DhcpClient_H
-#define _DhcpClient_H
-
-#include <pthread.h>
-
-class IDhcpEventHandlers;
-class ServiceManager;
-class DhcpListener;
-class Controller;
-
-class DhcpClient {
-public:
-    static const int STATUS_MONITOR_PORT = 6666;
-
-private:
-    int                mState;
-    IDhcpEventHandlers *mHandlers;
-    ServiceManager     *mServiceManager;
-    DhcpListener       *mListener;
-    int                mListenerSocket;
-    pthread_mutex_t    mLock;
-    Controller         *mController;
-    bool               mDoArpProbe;
-
-public:
-    DhcpClient(IDhcpEventHandlers *handlers);
-    virtual ~DhcpClient();
-
-    int getState() { return mState; }
-    bool getDoArpProbe() { return mDoArpProbe; }
-    void setDoArpProbe(bool probe);
-
-    int start(Controller *c);
-    int stop();
-};
-
-#endif
diff --git a/nexus/DhcpEvent.cpp b/nexus/DhcpEvent.cpp
deleted file mode 100644
index 2f1ce6f..0000000
--- a/nexus/DhcpEvent.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-
-#define LOG_TAG "DhcpEvent"
-#include <cutils/log.h>
-
-#include "DhcpEvent.h"
-
-char *DhcpEvent::toString(int val, char *buffer, int max) {
-    if (val == DhcpEvent::UNKNOWN)
-        strncpy(buffer, "UNKNOWN", max);
-    else if (val == DhcpEvent::STOP)
-        strncpy(buffer, "STOP", max);
-    else if (val == DhcpEvent::RENEW)
-        strncpy(buffer, "RENEW", max);
-    else if (val == DhcpEvent::RELEASE)
-        strncpy(buffer, "RELEASE", max);
-    else if (val == DhcpEvent::TIMEOUT)
-        strncpy(buffer, "TIMEOUT", max);
-    else
-        strncpy(buffer, "(internal error)", max);
-
-    return buffer;
-}
-
-int DhcpEvent::parseString(const char *buffer) {
-    if (!strcasecmp(buffer, "UNKNOWN"))
-        return DhcpEvent::UNKNOWN;
-    else if (!strcasecmp(buffer, "STOP"))
-        return DhcpEvent::STOP;
-    else if (!strcasecmp(buffer, "RENEW"))
-        return DhcpEvent::RENEW;
-    else if (!strcasecmp(buffer, "RELEASE"))
-        return DhcpEvent::RELEASE;
-    else if (!strcasecmp(buffer, "TIMEOUT"))
-        return DhcpEvent::TIMEOUT;
-    else {
-        ALOGW("Bad event '%s'", buffer);
-        return -1;
-    }
-}
diff --git a/nexus/DhcpEvent.h b/nexus/DhcpEvent.h
deleted file mode 100644
index f77834d..0000000
--- a/nexus/DhcpEvent.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _DHCP_EVENT_H
-#define _DHCP_EVENT_H
-
-class DhcpEvent {
-public:
-    static const int UNKNOWN = 0;
-    static const int STOP    = 1;
-    static const int RENEW   = 2;
-    static const int RELEASE = 3;
-    static const int TIMEOUT = 4;
-
-    static char *toString(int val, char *buffer, int max);
-
-    static int parseString(const char *buffer);
-};
-
-#endif
diff --git a/nexus/DhcpListener.cpp b/nexus/DhcpListener.cpp
deleted file mode 100644
index 16c369b..0000000
--- a/nexus/DhcpListener.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#define LOG_TAG "DhcpListener"
-#include <cutils/log.h>
-
-#include <DhcpListener.h>
-#include "IDhcpEventHandlers.h"
-#include "DhcpState.h"
-#include "DhcpEvent.h"
-#include "Controller.h"
-
-DhcpListener::DhcpListener(Controller *c, int socket, IDhcpEventHandlers *handlers) :
-              SocketListener(socket, false) {
-    mHandlers = handlers;
-    mController = c;
-}
-
-DhcpListener::~DhcpListener() {
-}
-
-bool DhcpListener::onDataAvailable(SocketClient *cli) {
-    char buffer[255];
-    int rc;
-
-    if ((rc = read(cli->getSocket(), buffer, sizeof(buffer))) < 0) {
-        ALOGW("Error reading dhcp status msg (%s)", strerror(errno));
-        return true;
-    }
-
-    if (!strncmp(buffer, "STATE:", 6)) {
-        char *next = buffer;
-        char *tmp;
-        int i;
-
-        for (i = 0; i < 2; i++) {
-            if (!(tmp = strsep(&next, ":"))) {
-                ALOGW("Error parsing state '%s'", buffer);
-                return true;
-            }
-        }
-
-        int st = DhcpState::parseString(tmp);
-        mHandlers->onDhcpStateChanged(mController, st);
-    } else if (!strncmp(buffer, "ADDRINFO:", 9)) {
-        char *next = buffer + 9;
-	struct in_addr ipaddr, netmask, gateway, broadcast, dns1, dns2;
-
-        if (!inet_aton(strsep(&next, ":"), &ipaddr)) {
-            ALOGW("Malformatted IP specified");
-        }
-        if (!inet_aton(strsep(&next, ":"), &netmask)) {
-            ALOGW("Malformatted netmask specified");
-        }
-        if (!inet_aton(strsep(&next, ":"), &broadcast)) {
-            ALOGW("Malformatted broadcast specified");
-        }
-        if (!inet_aton(strsep(&next, ":"), &gateway)) {
-            ALOGW("Malformatted gateway specified");
-        }
-        if (!inet_aton(strsep(&next, ":"), &dns1)) {
-            ALOGW("Malformatted dns1 specified");
-        }
-        if (!inet_aton(strsep(&next, ":"), &dns2)) {
-            ALOGW("Malformatted dns2 specified");
-        }
-        mHandlers->onDhcpLeaseUpdated(mController, &ipaddr, &netmask,
-                                      &broadcast, &gateway, &dns1, &dns2);
- 
-    } else if (!strncmp(buffer, "EVENT:", 6)) {
-        char *next = buffer;
-        char *tmp;
-        int i;
-
-        for (i = 0; i < 2; i++) {
-            if (!(tmp = strsep(&next, ":"))) {
-                ALOGW("Error parsing event '%s'", buffer);
-                return true;
-            }
-        }
-
-        int ev = DhcpEvent::parseString(tmp);
-        mHandlers->onDhcpEvent(mController, ev);
-  
-    } else {
-        ALOGW("Unknown DHCP monitor msg '%s'", buffer);
-    }
-
-    return true;
-}
diff --git a/nexus/DhcpListener.h b/nexus/DhcpListener.h
deleted file mode 100644
index ca6fe37..0000000
--- a/nexus/DhcpListener.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _DhcpListener_H
-#define _DhcpListener_H
-
-#include <sysutils/SocketListener.h>
-
-class IDhcpEventHandlers;
-class Controller;
-
-class DhcpListener : public SocketListener {
-    IDhcpEventHandlers *mHandlers;
-    Controller         *mController;
-
-public:
-
-    DhcpListener(Controller *c, int socket, IDhcpEventHandlers *handlers);
-    virtual ~DhcpListener();
-
-private:
-    bool onDataAvailable(SocketClient *cli);
-};
-
-#endif
diff --git a/nexus/DhcpState.cpp b/nexus/DhcpState.cpp
deleted file mode 100644
index b86c186..0000000
--- a/nexus/DhcpState.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-
-#define LOG_TAG "DhcpState"
-#include <cutils/log.h>
-
-#include "DhcpState.h"
-
-char *DhcpState::toString(int val, char *buffer, int max) {
-    if (val == DhcpState::INIT)
-        strncpy(buffer, "INIT", max);
-    else if (val == DhcpState::DISCOVERING)
-        strncpy(buffer, "DISCOVERING", max);
-    else if (val == DhcpState::REQUESTING)
-        strncpy(buffer, "REQUESTING", max);
-    else if (val == DhcpState::BOUND)
-        strncpy(buffer, "BOUND", max);
-    else if (val == DhcpState::RENEWING)
-        strncpy(buffer, "RENEWING", max);
-    else if (val == DhcpState::REBINDING)
-        strncpy(buffer, "REBINDING", max);
-    else if (val == DhcpState::REBOOT)
-        strncpy(buffer, "REBOOT", max);
-    else if (val == DhcpState::RENEW_REQUESTED)
-        strncpy(buffer, "RENEW_REQUESTED", max);
-    else if (val == DhcpState::INIT_IPV4LL)
-        strncpy(buffer, "INIT_IPV4LL", max);
-    else if (val == DhcpState::PROBING)
-        strncpy(buffer, "PROBING", max);
-    else if (val == DhcpState::ANNOUNCING)
-        strncpy(buffer, "ANNOUNCING", max);
-    else
-        strncpy(buffer, "(internal error)", max);
-
-    return buffer;
-}
-
-int DhcpState::parseString(const char *buffer) {
-    if (!strcasecmp(buffer, "INIT"))
-        return DhcpState::INIT;
-    else if (!strcasecmp(buffer, "DISCOVERING"))
-        return DhcpState::DISCOVERING;
-    else if (!strcasecmp(buffer, "REQUESTING"))
-        return DhcpState::REQUESTING;
-    else if (!strcasecmp(buffer, "BOUND"))
-        return DhcpState::BOUND;
-    else if (!strcasecmp(buffer, "RENEWING"))
-        return DhcpState::RENEWING;
-    else if (!strcasecmp(buffer, "REBINDING"))
-        return DhcpState::REBINDING;
-    else if (!strcasecmp(buffer, "REBOOT"))
-        return DhcpState::REBOOT;
-    else if (!strcasecmp(buffer, "RENEW_REQUESTED"))
-        return DhcpState::INIT_IPV4LL;
-    else if (!strcasecmp(buffer, "INIT_IPV4LL"))
-        return DhcpState::INIT_IPV4LL;
-    else if (!strcasecmp(buffer, "PROBING"))
-        return DhcpState::PROBING;
-    else if (!strcasecmp(buffer, "ANNOUNCING"))
-        return DhcpState::ANNOUNCING;
-    else {
-        ALOGW("Bad state '%s'", buffer);
-        return -1;
-    }
-}
diff --git a/nexus/DhcpState.h b/nexus/DhcpState.h
deleted file mode 100644
index 041c5d2..0000000
--- a/nexus/DhcpState.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _DHCP_STATE_H
-#define _DHCP_STATE_H
-
-class DhcpState {
-public:
-    static const int INIT            = 0;
-    static const int DISCOVERING     = 1;
-    static const int REQUESTING      = 2;
-    static const int BOUND           = 3;
-    static const int RENEWING        = 4;
-    static const int REBINDING       = 5;
-    static const int REBOOT          = 6;
-    static const int RENEW_REQUESTED = 7;
-    static const int INIT_IPV4LL     = 8;
-    static const int PROBING         = 9;
-    static const int ANNOUNCING      = 10;
-
-    static char *toString(int val, char *buffer, int max);
-
-    static int parseString(const char *buffer);
-};
-
-#endif
diff --git a/nexus/IControllerHandler.h b/nexus/IControllerHandler.h
deleted file mode 100644
index 3151587..0000000
--- a/nexus/IControllerHandler.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _ICONTROLLER_HANDLER_H
-#define _ICONTROLLER_HANDLER_H
-
-class Controller;
-class InterfaceConfig;
-
-class IControllerHandler {
-public:
-    virtual ~IControllerHandler() {}
-    virtual void onInterfaceConnected(Controller *c) = 0;
-    virtual void onInterfaceDisconnected(Controller *c) = 0;
-    virtual void onControllerSuspending(Controller *c) = 0;
-    virtual void onControllerResumed(Controller *c) = 0;
-};
-
-#endif
-
diff --git a/nexus/IDhcpEventHandlers.h b/nexus/IDhcpEventHandlers.h
deleted file mode 100644
index 2568f09..0000000
--- a/nexus/IDhcpEventHandlers.h
+++ /dev/null
@@ -1,33 +0,0 @@
-
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _IDhcpEventHandlers_H
-#define _IDhcpEventHandlers_H
-
-class IDhcpEventHandlers {
-public:
-    virtual ~IDhcpEventHandlers() {}
-    virtual void onDhcpStateChanged(Controller *c, int state) = 0;
-    virtual void onDhcpEvent(Controller *c, int event) = 0;
-    virtual void onDhcpLeaseUpdated(Controller *c,
-                                    struct in_addr *addr, struct in_addr *net,
-                                    struct in_addr *brd,
-                                    struct in_addr *gw, struct in_addr *dns1,
-                                    struct in_addr *dns2) = 0;
-};
-
-#endif
diff --git a/nexus/ISupplicantEventHandler.h b/nexus/ISupplicantEventHandler.h
deleted file mode 100644
index 1a3aa07..0000000
--- a/nexus/ISupplicantEventHandler.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _ISUPPLICANT_EVENT_HANDLER_H
-#define _ISUPPLICANT_EVENT_HANDLER_H
-
-class SupplicantAssociatingEvent;
-class SupplicantAssociatedEvent;
-class SupplicantConnectedEvent;
-class SupplicantScanResultsEvent;
-class SupplicantStateChangeEvent;
-class SupplicantConnectionTimeoutEvent;
-class SupplicantDisconnectedEvent;
-
-class ISupplicantEventHandler {
-public:
-    virtual ~ISupplicantEventHandler(){}
-    virtual void onAssociatingEvent(SupplicantAssociatingEvent *evt) = 0;
-    virtual void onAssociatedEvent(SupplicantAssociatedEvent *evt) = 0;
-    virtual void onConnectedEvent(SupplicantConnectedEvent *evt) = 0;
-    virtual void onScanResultsEvent(SupplicantScanResultsEvent *evt) = 0;
-    virtual void onStateChangeEvent(SupplicantStateChangeEvent *evt) = 0;
-    virtual void onConnectionTimeoutEvent(SupplicantConnectionTimeoutEvent *evt) = 0;
-    virtual void onDisconnectedEvent(SupplicantDisconnectedEvent *evt) = 0;
-#if 0
-    virtual void onTerminatingEvent(SupplicantEvent *evt) = 0;
-    virtual void onPasswordChangedEvent(SupplicantEvent *evt) = 0;
-    virtual void onEapNotificationEvent(SupplicantEvent *evt) = 0;
-    virtual void onEapStartedEvent(SupplicantEvent *evt) = 0;
-    virtual void onEapMethodEvent(SupplicantEvent *evt) = 0;
-    virtual void onEapSuccessEvent(SupplicantEvent *evt) = 0;
-    virtual void onEapFailureEvent(SupplicantEvent *evt) = 0;
-    virtual void onLinkSpeedEvent(SupplicantEvent *evt) = 0;
-    virtual void onDriverStateEvent(SupplicantEvent *evt) = 0;
-#endif
-};
-
-#endif
-
diff --git a/nexus/IWifiStatusPollerHandler.h b/nexus/IWifiStatusPollerHandler.h
deleted file mode 100644
index 9b94945..0000000
--- a/nexus/IWifiStatusPollerHandler.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _IWIFISTATUSPOLLER_HANDLER_H
-#define _IWIFISTATUSPOLLER_HANDLER_H
-
-class IWifiStatusPollerHandler {
-public:
-    virtual ~IWifiStatusPollerHandler() {}
-    virtual void onStatusPollInterval() = 0;
-};
-
-#endif
diff --git a/nexus/InterfaceConfig.cpp b/nexus/InterfaceConfig.cpp
deleted file mode 100644
index 832cbca..0000000
--- a/nexus/InterfaceConfig.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#define LOG_TAG "InterfaceConfig"
-#include <cutils/log.h>
-
-#include "InterfaceConfig.h"
-#include "NetworkManager.h"
-
-InterfaceConfig::InterfaceConfig(bool propertiesReadOnly) {
-    mStaticProperties.propIp = new IPV4AddressPropertyHelper("Addr", propertiesReadOnly, &mIp);
-    mStaticProperties.propNetmask = new IPV4AddressPropertyHelper("Netmask", propertiesReadOnly, &mNetmask);
-    mStaticProperties.propGateway = new IPV4AddressPropertyHelper("Gateway", propertiesReadOnly, &mGateway);
-    mStaticProperties.propBroadcast = new IPV4AddressPropertyHelper("Broadcast", propertiesReadOnly, &mBroadcast);
-    mStaticProperties.propDns = new InterfaceDnsProperty(this, propertiesReadOnly);
-}
-
-InterfaceConfig::~InterfaceConfig() {
-    delete mStaticProperties.propIp;
-    delete mStaticProperties.propNetmask;
-    delete mStaticProperties.propGateway;
-    delete mStaticProperties.propBroadcast;
-    delete mStaticProperties.propDns;
-}
-
-void InterfaceConfig::setIp(struct in_addr *addr) {
-    memcpy(&mIp, addr, sizeof(struct in_addr));
-}
-
-void InterfaceConfig::setNetmask(struct in_addr *addr) {
-    memcpy(&mNetmask, addr, sizeof(struct in_addr));
-}
-
-void InterfaceConfig::setGateway(struct in_addr *addr) {
-    memcpy(&mGateway, addr, sizeof(struct in_addr));
-}
-
-void InterfaceConfig::setBroadcast(struct in_addr *addr) {
-    memcpy(&mBroadcast, addr, sizeof(struct in_addr));
-}
-
-void InterfaceConfig::setDns(int idx, struct in_addr *addr) {
-    memcpy(&mDns[idx], addr, sizeof(struct in_addr));
-}
-
-int InterfaceConfig::attachProperties(PropertyManager *pm, const char *nsName) {
-    pm->attachProperty(nsName, mStaticProperties.propIp);
-    pm->attachProperty(nsName, mStaticProperties.propNetmask);
-    pm->attachProperty(nsName, mStaticProperties.propGateway);
-    pm->attachProperty(nsName, mStaticProperties.propBroadcast);
-    pm->attachProperty(nsName, mStaticProperties.propDns);
-    return 0;
-}
-
-int InterfaceConfig::detachProperties(PropertyManager *pm, const char *nsName) {
-    pm->detachProperty(nsName, mStaticProperties.propIp);
-    pm->detachProperty(nsName, mStaticProperties.propNetmask);
-    pm->detachProperty(nsName, mStaticProperties.propGateway);
-    pm->detachProperty(nsName, mStaticProperties.propBroadcast);
-    pm->detachProperty(nsName, mStaticProperties.propDns);
-    return 0;
-}
-
-InterfaceConfig::InterfaceDnsProperty::InterfaceDnsProperty(InterfaceConfig *c,
-                                                            bool ro) :
-                 IPV4AddressProperty("Dns", ro, 2) {
-    mCfg = c;
-}
-
-int InterfaceConfig::InterfaceDnsProperty::set(int idx, struct in_addr *value) {
-    memcpy(&mCfg->mDns[idx], value, sizeof(struct in_addr));
-    return 0;
-}
-int InterfaceConfig::InterfaceDnsProperty::get(int idx, struct in_addr *buf) {
-    memcpy(buf, &mCfg->mDns[idx], sizeof(struct in_addr));
-    return 0;
-}
-
diff --git a/nexus/InterfaceConfig.h b/nexus/InterfaceConfig.h
deleted file mode 100644
index 3fc7390..0000000
--- a/nexus/InterfaceConfig.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _INTERFACE_CONFIG_H
-#define _INTERFACE_CONFIG_H
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include "Property.h"
-class PropertyManager;
-
-class InterfaceConfig {
-    class InterfaceDnsProperty;
-    friend class InterfaceConfig::InterfaceDnsProperty;
-
-    struct {
-        IPV4AddressPropertyHelper *propIp;
-        IPV4AddressPropertyHelper *propNetmask;
-        IPV4AddressPropertyHelper *propGateway;
-        IPV4AddressPropertyHelper *propBroadcast;
-        InterfaceDnsProperty      *propDns;
-    } mStaticProperties;
-
-    struct in_addr mIp;
-    struct in_addr mNetmask;
-    struct in_addr mGateway;
-    struct in_addr mBroadcast;
-    struct in_addr mDns[2];
-
-public:
-    InterfaceConfig(bool propertiesReadOnly);
-    virtual ~InterfaceConfig();
-    
-    int set(const char *name, const char *value);
-    const char *get(const char *name, char *buffer, size_t maxsize);
-
-    const struct in_addr &getIp() const { return mIp; }
-    const struct in_addr &getNetmask() const { return mNetmask; }
-    const struct in_addr &getGateway() const { return mGateway; }
-    const struct in_addr &getBroadcast() const { return mBroadcast; }
-    const struct in_addr &getDns(int idx) const { return mDns[idx]; }
-
-    void setIp(struct in_addr *addr);
-    void setNetmask(struct in_addr *addr);
-    void setGateway(struct in_addr *addr);
-    void setBroadcast(struct in_addr *addr);
-    void setDns(int idx, struct in_addr *addr);
-
-    int attachProperties(PropertyManager *pm, const char *nsName);
-    int detachProperties(PropertyManager *pm, const char *nsName);
-
-private:
-
-    class InterfaceDnsProperty : public IPV4AddressProperty {
-        InterfaceConfig *mCfg;
-    public:
-        InterfaceDnsProperty(InterfaceConfig *cfg, bool ro);
-        int set(int idx, struct in_addr *value);
-        int get(int idx, struct in_addr *buffer);
-    };
-};
-
-
-#endif
diff --git a/nexus/LoopController.cpp b/nexus/LoopController.cpp
deleted file mode 100644
index f8e01d7..0000000
--- a/nexus/LoopController.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-
-#include "LoopController.h"
-#include "PropertyManager.h"
-
-LoopController::LoopController(PropertyManager *propmngr,
-                               IControllerHandler *handlers) :
-                Controller("loop", propmngr, handlers) {
-}
diff --git a/nexus/LoopController.h b/nexus/LoopController.h
deleted file mode 100644
index 53d16f1..0000000
--- a/nexus/LoopController.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _LOOP_CONTROLLER_H
-#define _LOOP_CONTROLLER_H
-
-#include "Controller.h"
-
-class ControllerHandler;
-
-class LoopController : public Controller {
-public:
-    LoopController(PropertyManager *propmngr, IControllerHandler *h);
-    virtual ~LoopController() {}
-
-    int set(const char *name, const char *value);
-    const char *get(const char *name, char *buffer, size_t maxsize);
-};
-
-#endif
diff --git a/nexus/NetworkManager.cpp b/nexus/NetworkManager.cpp
deleted file mode 100644
index d4285bf..0000000
--- a/nexus/NetworkManager.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <errno.h>
-
-#define LOG_TAG "Nexus"
-
-#include <cutils/log.h>
-
-#include "NetworkManager.h"
-#include "InterfaceConfig.h"
-#include "DhcpClient.h"
-#include "DhcpState.h"
-#include "DhcpEvent.h"
-#include "ResponseCode.h"
-
-NetworkManager *NetworkManager::sInstance = NULL;
-
-NetworkManager *NetworkManager::Instance() {
-    if (!sInstance)
-        sInstance = new NetworkManager(new PropertyManager());
-    return sInstance;
-}
-
-NetworkManager::NetworkManager(PropertyManager *propMngr) {
-    mBroadcaster = NULL;
-    mControllerBindings = new ControllerBindingCollection();
-    mPropMngr = propMngr;
-    mLastDhcpState = DhcpState::INIT;
-    mDhcp = new DhcpClient(this);
-}
-
-NetworkManager::~NetworkManager() {
-}
-
-int NetworkManager::run() {
-    if (startControllers()) {
-        ALOGW("Unable to start all controllers (%s)", strerror(errno));
-    }
-    return 0;
-}
-
-int NetworkManager::attachController(Controller *c) {
-    ControllerBinding *cb = new ControllerBinding(c);
-    mControllerBindings->push_back(cb);
-    return 0;
-}
-
-int NetworkManager::startControllers() {
-    int rc = 0;
-    ControllerBindingCollection::iterator it;
-
-    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
-        int irc = (*it)->getController()->start();
-        if (irc && !rc)
-            rc = irc;
-    }
-    return rc;
-}
-
-int NetworkManager::stopControllers() {
-    int rc = 0;
-    ControllerBindingCollection::iterator it;
-
-    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
-        int irc = (*it)->getController()->stop();
-        if (irc && !rc)
-            rc = irc;
-    }
-    return rc;
-}
-
-NetworkManager::ControllerBinding *NetworkManager::lookupBinding(Controller *c) {
-    ControllerBindingCollection::iterator it;
-
-    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
-        if ((*it)->getController() == c)
-            return (*it);
-    }
-    errno = ENOENT;
-    return NULL;
-}
-
-Controller *NetworkManager::findController(const char *name) {
-    ControllerBindingCollection::iterator it;
-
-    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
-        if (!strcasecmp((*it)->getController()->getName(), name))
-            return (*it)->getController();
-    }
-    errno = ENOENT;
-    return NULL;
-}
-
-void NetworkManager::onInterfaceConnected(Controller *c) {
-    ALOGD("Controller %s interface %s connected", c->getName(), c->getBoundInterface());
-
-    if (mDhcp->start(c)) {
-        ALOGE("Failed to start DHCP (%s)", strerror(errno));
-        return;
-    }
-}
-
-void NetworkManager::onInterfaceDisconnected(Controller *c) {
-    ALOGD("Controller %s interface %s disconnected", c->getName(),
-         c->getBoundInterface());
-
-    mDhcp->stop();
-}
-
-void NetworkManager::onControllerSuspending(Controller *c) {
-    ALOGD("Controller %s interface %s suspending", c->getName(),
-         c->getBoundInterface());
-    mDhcp->stop();
-}
-
-void NetworkManager::onControllerResumed(Controller *c) {
-    ALOGD("Controller %s interface %s resumed", c->getName(),
-         c->getBoundInterface());
-}
-
-void NetworkManager::onDhcpStateChanged(Controller *c, int state) {
-    char tmp[255];
-    char tmp2[255];
-
-    ALOGD("onDhcpStateChanged(%s -> %s)",
-         DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)),
-         DhcpState::toString(state, tmp2, sizeof(tmp2)));
-
-    switch(state) {
-        case DhcpState::BOUND:
-            // Refresh the 'net.xxx' for the controller
-            break;
-        case DhcpState::RENEWING:
-            break;
-        default:
-            break;
-    }
-
-    char *tmp3;
-    asprintf(&tmp3,
-             "DHCP state changed from %d (%s) -> %d (%s)", 
-             mLastDhcpState,
-             DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)),
-             state,
-             DhcpState::toString(state, tmp2, sizeof(tmp2)));
-
-    getBroadcaster()->sendBroadcast(ResponseCode::DhcpStateChange,
-                                    tmp3,
-                                    false);
-    free(tmp3);
-                          
-    mLastDhcpState = state;
-}
-
-void NetworkManager::onDhcpEvent(Controller *c, int evt) {
-    char tmp[64];
-    ALOGD("onDhcpEvent(%s)", DhcpEvent::toString(evt, tmp, sizeof(tmp)));
-}
-
-void NetworkManager::onDhcpLeaseUpdated(Controller *c, struct in_addr *addr,
-                                        struct in_addr *net,
-                                        struct in_addr *brd,
-                                        struct in_addr *gw,
-                                        struct in_addr *dns1,
-                                        struct in_addr *dns2) {
-    ControllerBinding *bind = lookupBinding(c);
-
-    if (!bind->getCurrentCfg())
-        bind->setCurrentCfg(new InterfaceConfig(true));
-
-    bind->getCurrentCfg()->setIp(addr);
-    bind->getCurrentCfg()->setNetmask(net);
-    bind->getCurrentCfg()->setGateway(gw);
-    bind->getCurrentCfg()->setBroadcast(brd);
-    bind->getCurrentCfg()->setDns(0, dns1);
-    bind->getCurrentCfg()->setDns(1, dns2);
-}
-
-NetworkManager::ControllerBinding::ControllerBinding(Controller *c) :
-                mController(c) {
-}
-
-void NetworkManager::ControllerBinding::setCurrentCfg(InterfaceConfig *c) {
-    mCurrentCfg = c;
-}
-
-void NetworkManager::ControllerBinding::setBoundCfg(InterfaceConfig *c) {
-    mBoundCfg = c;
-}
-
diff --git a/nexus/NetworkManager.h b/nexus/NetworkManager.h
deleted file mode 100644
index 93702ce..0000000
--- a/nexus/NetworkManager.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _NETWORKMANAGER_H
-#define _NETWORKMANAGER_H
-
-#include <utils/List.h>
-#include <sysutils/SocketListener.h>
-
-#include "Controller.h"
-#include "PropertyManager.h"
-#include "IControllerHandler.h"
-#include "IDhcpEventHandlers.h"
-
-class InterfaceConfig;
-class DhcpClient;
-
-class NetworkManager : public IControllerHandler, public IDhcpEventHandlers {
-    static NetworkManager *sInstance;
-
-    class ControllerBinding {
-        Controller      *mController;
-        InterfaceConfig *mCurrentCfg;
-        InterfaceConfig *mBoundCfg;
-
-    public:
-        ControllerBinding(Controller *c);
-        virtual ~ControllerBinding() {}
-
-        InterfaceConfig *getCurrentCfg() { return mCurrentCfg; }
-        InterfaceConfig *getBoundCfg() { return mCurrentCfg; }
-        Controller *getController() { return mController; }
-
-        void setCurrentCfg(InterfaceConfig *cfg);
-        void setBoundCfg(InterfaceConfig *cfg);
-    };
-
-    typedef android::List<ControllerBinding *> ControllerBindingCollection;
-
-private:
-    ControllerBindingCollection *mControllerBindings;
-    SocketListener              *mBroadcaster;
-    PropertyManager             *mPropMngr;
-    DhcpClient                  *mDhcp;
-    int                         mLastDhcpState;
-
-public:
-    virtual ~NetworkManager();
-
-    int run();
-
-    int attachController(Controller *controller);
-
-    Controller *findController(const char *name);
-
-    void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
-    SocketListener *getBroadcaster() { return mBroadcaster; }
-    PropertyManager *getPropMngr() { return mPropMngr; }
-
-    static NetworkManager *Instance();
-
-private:
-    int startControllers();
-    int stopControllers();
-
-    NetworkManager(PropertyManager *propMngr);
-    ControllerBinding *lookupBinding(Controller *c);
-
-    void onInterfaceConnected(Controller *c);
-    void onInterfaceDisconnected(Controller *c);
-    void onControllerSuspending(Controller *c);
-    void onControllerResumed(Controller *c);
-
-    void onDhcpStateChanged(Controller *c, int state);
-    void onDhcpEvent(Controller *c, int event);
-    void onDhcpLeaseUpdated(Controller *c,
-                            struct in_addr *addr, struct in_addr *net,
-                            struct in_addr *brd,
-                            struct in_addr *gw, struct in_addr *dns1,
-                            struct in_addr *dns2);
-};
-#endif
diff --git a/nexus/NexusCommand.h b/nexus/NexusCommand.h
deleted file mode 100644
index a7f944a..0000000
--- a/nexus/NexusCommand.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _NEXUS_COMMAND_H
-#define _NEXUS_COMMAND_H
-
-#include <sysutils/FrameworkCommand.h>
-
-class NexusCommand : public FrameworkCommand {
-public:
-    NexusCommand(const char *cmd);
-    virtual ~NexusCommand() {}
-};
-
-#endif
diff --git a/nexus/OpenVpnController.cpp b/nexus/OpenVpnController.cpp
deleted file mode 100644
index 6b6d892..0000000
--- a/nexus/OpenVpnController.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#define LOG_TAG "OpenVpnController"
-#include <cutils/log.h>
-#include <cutils/properties.h>
-
-#include <sysutils/ServiceManager.h>
-
-#include "OpenVpnController.h"
-#include "PropertyManager.h"
-
-#define DAEMON_PROP_NAME "vpn.openvpn.status"
-#define DAEMON_CONFIG_FILE "/data/misc/openvpn/openvpn.conf"
-
-OpenVpnController::OpenVpnController(PropertyManager *propmngr,
-                                     IControllerHandler *handlers) :
-                   VpnController(propmngr, handlers) {
-    mServiceManager = new ServiceManager();
-}
-
-OpenVpnController::~OpenVpnController() {
-    delete mServiceManager;
-}
-
-int OpenVpnController::start() {
-    return VpnController::start();
-}
-
-int OpenVpnController::stop() {
-    return VpnController::stop();
-}
-
-int OpenVpnController::enable() {
-    char svc[PROPERTY_VALUE_MAX];
-    char tmp[64];
-
-    if (!mPropMngr->get("vpn.gateway", tmp, sizeof(tmp))) {
-        ALOGE("Error reading property 'vpn.gateway' (%s)", strerror(errno));
-        return -1;
-    }
-    snprintf(svc, sizeof(svc), "openvpn:--remote %s 1194", tmp);
-
-    if (mServiceManager->start(svc))
-        return -1;
-
-    return 0;
-}
-
-int OpenVpnController::disable() {
-    if (mServiceManager->stop("openvpn"))
-        return -1;
-    return 0;
-}
diff --git a/nexus/OpenVpnController.h b/nexus/OpenVpnController.h
deleted file mode 100644
index 529aab5..0000000
--- a/nexus/OpenVpnController.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _OPEN_VPN_CONTROLLER_H
-#define _OPEN_VPN_CONTROLLER_H
-
-#include "PropertyManager.h"
-#include "VpnController.h"
-
-class ServiceManager;
-class IControllerHandler;
-
-class OpenVpnController : public VpnController {
-private:
-    ServiceManager *mServiceManager;
-
-public:
-    OpenVpnController(PropertyManager *propmngr, IControllerHandler *handlers);
-    virtual ~OpenVpnController();
-
-    int start();
-    int stop();
-
-private:
-    int enable();
-    int disable();
-};
-
-#endif
diff --git a/nexus/Property.cpp b/nexus/Property.cpp
deleted file mode 100644
index 6cfa955..0000000
--- a/nexus/Property.cpp
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <errno.h>
-#include <strings.h>
-#include <netinet/in.h>
-
-#define LOG_TAG "Property"
-
-#include <cutils/log.h>
-
-#include "Property.h"
-
-Property::Property(const char *name, bool readOnly,
-                   int type, int numElements) :
-          mName(name), mReadOnly(readOnly), mType(type),
-          mNumElements(numElements) {
-    if (index(name, '.')) {
-        ALOGW("Property name %s violates namespace rules", name);
-    }
-}
-
-StringProperty::StringProperty(const char *name, bool ro, int elements) :
-                Property(name, ro, Property::Type_STRING, elements) {
-}
-int StringProperty::set(int idx, int value) {
-    ALOGE("Integer 'set' called on string property!");
-    errno = EINVAL;
-    return -1;
-}
-int StringProperty::set(int idx, struct in_addr *value) {
-    ALOGE("IpAddr 'set' called on string property!");
-    errno = EINVAL;
-    return -1;
-}
-int StringProperty::get(int idx, int *buffer) {
-    ALOGE("Integer 'get' called on string property!");
-    errno = EINVAL;
-    return -1;
-}
-int StringProperty::get(int idx, struct in_addr *buffer) {
-    ALOGE("IpAddr 'get' called on string property!");
-    errno = EINVAL;
-    return -1;
-}
-
-StringPropertyHelper::StringPropertyHelper(const char *name, bool ro,
-                                           char *buffer, size_t max) :
-                      StringProperty(name, ro, 1) {
-    mBuffer = buffer;
-    mMax = max;
-}
-
-int StringPropertyHelper::set(int idx, const char *value) {
-    if (idx != 0) {
-        ALOGW("Attempt to use array index on StringPropertyHelper::set");
-        errno = EINVAL;
-        return -1;
-    }
-    strncpy(mBuffer, value, mMax);
-    return 0;
-}
-
-int StringPropertyHelper::get(int idx, char *buffer, size_t max) {
-    if (idx != 0) {
-        ALOGW("Attempt to use array index on StringPropertyHelper::get");
-        errno = EINVAL;
-        return -1;
-    }
-    strncpy(buffer, mBuffer, max);
-    return 0;
-}
- 
-IntegerProperty::IntegerProperty(const char *name, bool ro, int elements) :
-                Property(name, ro, Property::Type_INTEGER, elements) {
-}
-
-int IntegerProperty::set(int idx, const char *value) {
-    ALOGE("String 'set' called on integer property!");
-    errno = EINVAL;
-    return -1;
-}
-int IntegerProperty::set(int idx, struct in_addr *value) {
-    ALOGE("IpAddr 'set' called on integer property!");
-    errno = EINVAL;
-    return -1;
-}
-int IntegerProperty::get(int idx, char *buffer, size_t max) {
-    ALOGE("String 'get' called on integer property!");
-    errno = EINVAL;
-    return -1;
-}
-int IntegerProperty::get(int idx, struct in_addr *buffer) {
-    ALOGE("IpAddr 'get' called on integer property!");
-    errno = EINVAL;
-    return -1;
-}
-
-IntegerPropertyHelper::IntegerPropertyHelper(const char *name, bool ro,
-                                             int *buffer) :
-                       IntegerProperty(name, ro, 1) {
-    mBuffer = buffer;
-}
-
-int IntegerPropertyHelper::set(int idx, int value) {
-    if (idx != 0) {
-        ALOGW("Attempt to use array index on IntegerPropertyHelper::set");
-        errno = EINVAL;
-        return -1;
-    }
-    *mBuffer = value;
-    return 0;
-}
-
-int IntegerPropertyHelper::get(int idx, int *buffer) {
-    if (idx != 0) {
-        ALOGW("Attempt to use array index on IntegerPropertyHelper::get");
-        errno = EINVAL;
-        return -1;
-    }
-    *buffer = *mBuffer;
-    return 0;
-}
-
-IPV4AddressProperty::IPV4AddressProperty(const char *name, bool ro, int elements) :
-                Property(name, ro, Property::Type_IPV4, elements) {
-}
-
-int IPV4AddressProperty::set(int idx, const char *value) {
-    ALOGE("String 'set' called on ipv4 property!");
-    errno = EINVAL;
-    return -1;
-}
-int IPV4AddressProperty::set(int idx, int value) {
-    ALOGE("Integer 'set' called on ipv4 property!");
-    errno = EINVAL;
-    return -1;
-}
-int IPV4AddressProperty::get(int idx, char *buffer, size_t max) {
-    ALOGE("String 'get' called on ipv4 property!");
-    errno = EINVAL;
-    return -1;
-}
-int IPV4AddressProperty::get(int idx, int *buffer) {
-    ALOGE("Integer 'get' called on ipv4 property!");
-    errno = EINVAL;
-    return -1;
-}
-
-IPV4AddressPropertyHelper::IPV4AddressPropertyHelper(const char *name, bool ro,
-                                                     struct in_addr *buffer) :
-                       IPV4AddressProperty(name, ro, 1) {
-    mBuffer = buffer;
-}
-
-int IPV4AddressPropertyHelper::set(int idx, struct in_addr *value) {
-    if (idx != 0) {
-        ALOGW("Attempt to use array index on IPV4AddressPropertyHelper::set");
-        errno = EINVAL;
-        return -1;
-    }
-    memcpy(mBuffer, value, sizeof(struct in_addr));
-    return 0;
-}
-
-int IPV4AddressPropertyHelper::get(int idx, struct in_addr *buffer) {
-    if (idx != 0) {
-        ALOGW("Attempt to use array index on IPV4AddressPropertyHelper::get");
-        errno = EINVAL;
-        return -1;
-    }
-    memcpy(buffer, mBuffer, sizeof(struct in_addr));
-    return 0;
-}
-
-PropertyNamespace::PropertyNamespace(const char *name) {
-    mName = strdup(name);
-    mProperties = new PropertyCollection();
-}
-
-PropertyNamespace::~PropertyNamespace() {
-    PropertyCollection::iterator it;
-    for (it = mProperties->begin(); it != mProperties->end();) {
-        delete (*it);
-        it = mProperties->erase(it);
-    }
-    delete mProperties;
-    free(mName);
-}
diff --git a/nexus/Property.h b/nexus/Property.h
deleted file mode 100644
index ceea2d3..0000000
--- a/nexus/Property.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _PROPERTY_H
-#define _PROPERTY_H
-
-#include <netinet/in.h>
-#include <utils/List.h>
-
-class Property {
-    const char *mName;
-    bool       mReadOnly;
-    int        mType;
-    int        mNumElements;
-
-public:
-    static const int NameMaxSize   = 128;
-    static const int ValueMaxSize  = 255;
-
-    static const int Type_STRING  = 1;
-    static const int Type_INTEGER = 2;
-    static const int Type_IPV4    = 3;
-
-    Property(const char *name, bool ro, int type, int elements);
-    virtual ~Property() {}
-
-    virtual int set(int idx, const char *value) = 0;
-    virtual int set(int idx, int value) = 0;
-    virtual int set(int idx, struct in_addr *value) = 0;
-
-    virtual int get(int idx, char *buffer, size_t max) = 0;
-    virtual int get(int idx, int *buffer) = 0;
-    virtual int get(int idx, struct in_addr *buffer) = 0;
-
-    int getType() { return mType; }
-    bool getReadOnly() { return mReadOnly; }
-    int getNumElements() { return mNumElements; }
-    const char *getName() { return mName; }
-};
-
-class StringProperty : public Property {
-public:
-    StringProperty(const char *name, bool ro, int elements);
-    virtual ~StringProperty() {}
- 
-    virtual int set(int idx, const char *value) = 0;
-    int set(int idx, int value);
-    int set(int idx, struct in_addr *value);
-
-    virtual int get(int idx, char *buffer, size_t max) = 0;
-    int get(int idx, int *buffer);
-    int get(int idx, struct in_addr *buffer);
-};
-
-class StringPropertyHelper : public StringProperty {
-    char *mBuffer;
-    size_t mMax;
-public:
-    StringPropertyHelper(const char *name, bool ro,
-                         char *buffer, size_t max);
-    int set(int idx, const char *value);
-    int get(int idx, char *buffer, size_t max);
-};
-
-class IntegerProperty : public Property {
-public:
-    IntegerProperty(const char *name, bool ro, int elements);
-    virtual ~IntegerProperty() {}
- 
-    int set(int idx, const char *value);
-    virtual int set(int idx, int value) = 0;
-    int set(int idx, struct in_addr *value);
-
-    int get(int idx, char *buffer, size_t max);
-    virtual int get(int idx, int *buffer) = 0;
-    int get(int idx, struct in_addr *buffer);
-};
-
-class IntegerPropertyHelper : public IntegerProperty {
-    int *mBuffer;
-public:
-    IntegerPropertyHelper(const char *name, bool ro, int *buffer);
-    int set(int idx, int value);
-    int get(int idx, int *buffer);
-};
-
-class IPV4AddressProperty : public Property {
-public:
-    IPV4AddressProperty(const char *name, bool ro, int elements);
-    virtual ~IPV4AddressProperty() {}
- 
-    int set(int idx, const char *value);
-    int set(int idx, int value);
-    virtual int set(int idx, struct in_addr *value) = 0;
-
-    int get(int idx, char *buffer, size_t max);
-    int get(int idx, int *buffer);
-    virtual int get(int idx, struct in_addr *buffer) = 0;
-};
-
-class IPV4AddressPropertyHelper : public IPV4AddressProperty {
-    struct in_addr *mBuffer;
-public:
-    IPV4AddressPropertyHelper(const char *name, bool ro, struct in_addr *buf);
-    int set(int idx, struct in_addr *value);
-    int get(int idx, struct in_addr *buffer);
-};
-
-typedef android::List<Property *> PropertyCollection;
-
-class PropertyNamespace {
-    char         *mName;
-    PropertyCollection *mProperties;
-
-public:
-    PropertyNamespace(const char *name);
-    virtual ~PropertyNamespace();
-
-    const char *getName() { return mName; }
-    PropertyCollection *getProperties() { return mProperties; }
-};
-
-typedef android::List<PropertyNamespace *> PropertyNamespaceCollection;
-#endif
diff --git a/nexus/PropertyManager.cpp b/nexus/PropertyManager.cpp
deleted file mode 100644
index 41cdb41..0000000
--- a/nexus/PropertyManager.cpp
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#define LOG_TAG "PropertyManager"
-
-#include <cutils/log.h>
-
-#include "PropertyManager.h"
-
-PropertyManager::PropertyManager() {
-    mNamespaces = new PropertyNamespaceCollection();
-    pthread_mutex_init(&mLock, NULL);
-}
-
-PropertyManager::~PropertyManager() {
-    PropertyNamespaceCollection::iterator it;
-
-    for (it = mNamespaces->begin(); it != mNamespaces->end();) {
-        delete (*it);
-        it = mNamespaces->erase(it);
-    }
-    delete mNamespaces;
-}
-
-PropertyNamespace *PropertyManager::lookupNamespace_UNLOCKED(const char *ns) {
-    PropertyNamespaceCollection::iterator ns_it;
-
-    for (ns_it = mNamespaces->begin(); ns_it != mNamespaces->end(); ++ns_it) {
-        if (!strcasecmp(ns, (*ns_it)->getName()))
-            return (*ns_it);
-    }
-    errno = ENOENT;
-    return NULL;
-}
-
-Property *PropertyManager::lookupProperty_UNLOCKED(PropertyNamespace *ns, const char *name) {
-    PropertyCollection::iterator it;
-
-    for (it = ns->getProperties()->begin();
-         it != ns->getProperties()->end(); ++it) {
-        if (!strcasecmp(name, (*it)->getName()))
-            return (*it);
-    }
-    errno = ENOENT;
-    return NULL;
-}
-
-int PropertyManager::attachProperty(const char *ns_name, Property *p) {
-    PropertyNamespace *ns;
-
-    ALOGD("Attaching property %s to namespace %s", p->getName(), ns_name);
-    pthread_mutex_lock(&mLock);
-    if (!(ns = lookupNamespace_UNLOCKED(ns_name))) {
-        ALOGD("Creating namespace %s", ns_name);
-        ns = new PropertyNamespace(ns_name);
-        mNamespaces->push_back(ns);
-    }
-
-    if (lookupProperty_UNLOCKED(ns, p->getName())) {
-        errno = EADDRINUSE;
-        pthread_mutex_unlock(&mLock);
-        ALOGE("Failed to register property %s.%s (%s)",
-            ns_name, p->getName(), strerror(errno));
-        return -1;
-    }
-
-    ns->getProperties()->push_back(p);
-    pthread_mutex_unlock(&mLock);
-    return 0;
-}
-
-int PropertyManager::detachProperty(const char *ns_name, Property *p) {
-    PropertyNamespace *ns;
-
-    ALOGD("Detaching property %s from namespace %s", p->getName(), ns_name);
-    pthread_mutex_lock(&mLock);
-    if (!(ns = lookupNamespace_UNLOCKED(ns_name))) {
-        pthread_mutex_unlock(&mLock);
-        ALOGE("Namespace '%s' not found", ns_name);
-        return -1;
-    }
-
-    PropertyCollection::iterator it;
-
-    for (it = ns->getProperties()->begin();
-         it != ns->getProperties()->end(); ++it) {
-        if (!strcasecmp(p->getName(), (*it)->getName())) {
-            delete ((*it));
-            ns->getProperties()->erase(it);
-            pthread_mutex_unlock(&mLock);
-            return 0;
-        }
-    }
-
-    ALOGE("Property %s.%s not found", ns_name, p->getName());
-    pthread_mutex_unlock(&mLock);
-    errno = ENOENT;
-    return -1;
-}
-
-int PropertyManager::doSet(Property *p, int idx, const char *value) {
-
-    if (p->getReadOnly()) {
-        errno = EROFS;
-        return -1;
-    }
-
-    if (p->getType() == Property::Type_STRING) {
-        return p->set(idx, value);
-    } else if (p->getType() == Property::Type_INTEGER) {
-        int tmp;
-        errno = 0;
-        tmp = strtol(value, (char **) NULL, 10);
-        if (errno) {
-            ALOGE("Failed to convert '%s' to int", value);
-            errno = EINVAL;
-            return -1;
-        }
-        return p->set(idx, tmp);
-    } else if (p->getType() == Property::Type_IPV4) {
-        struct in_addr tmp;
-        if (!inet_aton(value, &tmp)) {
-            ALOGE("Failed to convert '%s' to ipv4", value);
-            errno = EINVAL;
-            return -1;
-        }
-        return p->set(idx, &tmp);
-    } else {
-        ALOGE("Property '%s' has an unknown type (%d)", p->getName(),
-             p->getType());
-        errno = EINVAL;
-        return -1;
-    }
-    errno = ENOENT;
-    return -1;
-}
-
-int PropertyManager::doGet(Property *p, int idx, char *buffer, size_t max) {
-
-    if (p->getType() == Property::Type_STRING) {
-        if (p->get(idx, buffer, max)) {
-            ALOGW("String property %s get failed (%s)", p->getName(),
-                 strerror(errno));
-            return -1;
-        }
-    }
-    else if (p->getType() == Property::Type_INTEGER) {
-        int tmp;
-        if (p->get(idx, &tmp)) {
-            ALOGW("Integer property %s get failed (%s)", p->getName(),
-                 strerror(errno));
-            return -1;
-        }
-        snprintf(buffer, max, "%d", tmp);
-    } else if (p->getType() == Property::Type_IPV4) {
-        struct in_addr tmp;
-        if (p->get(idx, &tmp)) {
-            ALOGW("IPV4 property %s get failed (%s)", p->getName(),
-                 strerror(errno));
-            return -1;
-        }
-        strncpy(buffer, inet_ntoa(tmp), max);
-    } else {
-        ALOGE("Property '%s' has an unknown type (%d)", p->getName(),
-             p->getType());
-        errno = EINVAL;
-        return -1;
-    }
-    return 0;
-}
-
-/*
- * IPropertyManager methods
- */
-
-int PropertyManager::set(const char *name, const char *value) {
-
-    ALOGD("set %s = '%s'", name, value);
-    pthread_mutex_lock(&mLock);
-    PropertyNamespaceCollection::iterator ns_it;
-    for (ns_it = mNamespaces->begin(); ns_it != mNamespaces->end(); ++ns_it) {
-        PropertyCollection::iterator p_it;
-        for (p_it = (*ns_it)->getProperties()->begin();
-             p_it != (*ns_it)->getProperties()->end(); ++p_it) {
-            for (int i = 0; i < (*p_it)->getNumElements(); i++) {
-                char fqn[255];
-                char tmp[8];
-                sprintf(tmp, "_%d", i);
-                snprintf(fqn, sizeof(fqn), "%s.%s%s",
-                         (*ns_it)->getName(), (*p_it)->getName(),
-                         ((*p_it)->getNumElements() > 1 ? tmp : ""));
-                if (!strcasecmp(name, fqn)) {
-                    pthread_mutex_unlock(&mLock);
-                    return doSet((*p_it), i, value);
-                }
-            }
-        }
-    }
-
-    ALOGE("Property %s not found", name);
-    pthread_mutex_unlock(&mLock);
-    errno = ENOENT;
-    return -1;
-}
-
-const char *PropertyManager::get(const char *name, char *buffer, size_t max) {
-    pthread_mutex_lock(&mLock);
-    PropertyNamespaceCollection::iterator ns_it;
-    for (ns_it = mNamespaces->begin(); ns_it != mNamespaces->end(); ++ns_it) {
-        PropertyCollection::iterator p_it;
-        for (p_it = (*ns_it)->getProperties()->begin();
-             p_it != (*ns_it)->getProperties()->end(); ++p_it) {
-
-            for (int i = 0; i < (*p_it)->getNumElements(); i++) {
-                char fqn[255];
-                char tmp[8];
-                sprintf(tmp, "_%d", i);
-                snprintf(fqn, sizeof(fqn), "%s.%s%s",
-                         (*ns_it)->getName(), (*p_it)->getName(),
-                         ((*p_it)->getNumElements() > 1 ? tmp : ""));
-                if (!strcasecmp(name, fqn)) {
-                    pthread_mutex_unlock(&mLock);
-                    if (doGet((*p_it), i, buffer, max))
-                        return NULL;
-                    return buffer;
-                }
-            }
-        }
-    }
-
-    ALOGE("Property %s not found", name);
-    pthread_mutex_unlock(&mLock);
-    errno = ENOENT;
-    return NULL;
-}
-
-android::List<char *> *PropertyManager::createPropertyList(const char *prefix) {
-    android::List<char *> *c = new android::List<char *>();
-
-    pthread_mutex_lock(&mLock);
-    PropertyNamespaceCollection::iterator ns_it;
-    for (ns_it = mNamespaces->begin(); ns_it != mNamespaces->end(); ++ns_it) {
-        PropertyCollection::iterator p_it;
-        for (p_it = (*ns_it)->getProperties()->begin();
-             p_it != (*ns_it)->getProperties()->end(); ++p_it) {
-            for (int i = 0; i < (*p_it)->getNumElements(); i++) {
-                char fqn[255];
-                char tmp[8];
-                sprintf(tmp, "_%d", i);
-                snprintf(fqn, sizeof(fqn), "%s.%s%s",
-                         (*ns_it)->getName(), (*p_it)->getName(),
-                         ((*p_it)->getNumElements() > 1 ? tmp : ""));
-                if (!prefix ||
-                    (prefix && !strncasecmp(fqn, prefix, strlen(prefix)))) {
-                    c->push_back(strdup(fqn));
-                }
-            }
-        }
-    }
-    pthread_mutex_unlock(&mLock);
-    return c;
-}
diff --git a/nexus/PropertyManager.h b/nexus/PropertyManager.h
deleted file mode 100644
index af56a9c..0000000
--- a/nexus/PropertyManager.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _PROPERTY_MANAGER_H
-#define _PROPERTY_MANAGER_H
-
-#include <errno.h>
-#include <pthread.h>
-
-#include <utils/List.h>
-
-#include "Property.h"
-
-class PropertyManager {
-    PropertyNamespaceCollection *mNamespaces;
-    pthread_mutex_t    mLock;
-
-public:
-    PropertyManager();
-    virtual ~PropertyManager();
-    int attachProperty(const char *ns, Property *p);
-    int detachProperty(const char *ns, Property *p);
-
-    android::List<char *> *createPropertyList(const char *prefix);
-
-    int set(const char *name, const char *value);
-    const char *get(const char *name, char *buffer, size_t max);
-
-private:
-    PropertyNamespace *lookupNamespace_UNLOCKED(const char *ns);
-    Property *lookupProperty_UNLOCKED(PropertyNamespace *ns, const char *name);
-    int doSet(Property *p, int idx, const char *value);
-    int doGet(Property *p, int idx, char *buffer, size_t max);
-};
-
-#endif
diff --git a/nexus/ResponseCode.h b/nexus/ResponseCode.h
deleted file mode 100644
index 4b6cac8..0000000
--- a/nexus/ResponseCode.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _RESPONSECODE_H
-#define _RESPONSECODE_H
-
-class ResponseCode {
-public:
-    // 100 series - Requestion action was initiated; expect another reply
-    // before proceeding with a new command.
-    static const int ActionInitiated = 100;
-
-    static const int WifiScanResult = 125;
-    static const int WifiNetworkList = 126;
-
-    static const int PropertyRead = 127;
-    static const int PropertySet = 128;
-    static const int PropertyList = 129;
-
-    // 200 series - Requested action has been successfully completed
-    static const int CommandOkay = 200;
-
-    // 400 series - The command was accepted but the requested action
-    // did not take place.
-    static const int OperationFailed = 400;
-
-    // 500 series - The command was not accepted and the requested
-    // action did not take place.
-    static const int CommandSyntaxError = 500;
-    static const int CommandParameterError = 501;
-
-    // 600 series - Unsolicited broadcasts
-    static const int UnsolicitedInformational = 600;
-    static const int DhcpStateChange = 605;
-    static const int SupplicantStateChange = 610;
-    static const int ScanResultsReady = 615;
-    static const int LinkSpeedChange = 620;
-    static const int RssiChange = 625;
-};
-#endif
diff --git a/nexus/ScanResult.cpp b/nexus/ScanResult.cpp
deleted file mode 100644
index 72cb164..0000000
--- a/nexus/ScanResult.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <ctype.h>
-
-#define LOG_TAG "ScanResult"
-#include <cutils/log.h>
-
-#include "ScanResult.h"
-
-ScanResult::ScanResult() {
-}
-
-ScanResult::ScanResult(char *rawResult) {
-    char *p = rawResult, *q = rawResult;
-    char tmp[255];
-
-    // BSSID
-    for (q = p; *q != '\t'; ++q);
-    strncpy(tmp, p, (q - p));
-    tmp[q-p] = '\0';
-    mBssid = strdup(tmp);
-    ++q;
-
-    // FREQ
-    for (p = q; *q != '\t'; ++q);
-    strncpy(tmp, p, (q - p));
-    tmp[q-p] = '\0';
-    mFreq = atoi(tmp);
-    ++q;
-
-    // LEVEL
-    for (p = q; *q != '\t'; ++q);
-    strncpy(tmp, p, (q - p));
-    tmp[q-p] = '\0';
-    mLevel = atoi(tmp);
-    ++q;
-
-    // FLAGS
-    for (p = q; *q != '\t'; ++q);
-    strncpy(tmp, p, (q - p));
-    tmp[q-p] = '\0';
-    mFlags = strdup(tmp);
-    ++q;
-
-    // XXX: For some reason Supplicant sometimes sends a double-tab here.
-    // haven't had time to dig into it ...
-    if (*q == '\t')
-        q++;
-
-    for (p = q; *q != '\t'; ++q) {
-        if (*q == '\0')
-            break;
-    }
-
-    strncpy(tmp, p, (q - p));
-    tmp[q-p] = '\0';
-    mSsid = strdup(tmp);
-    ++q;
-
-    return;
- out_bad:
-    ALOGW("Malformatted scan result (%s)", rawResult);
-}
-
-ScanResult::~ScanResult() {
-    if (mBssid)
-        free(mBssid);
-    if (mFlags)
-        free(mFlags);
-    if (mSsid)
-        free(mSsid);
-}
-
-ScanResult *ScanResult::clone() {
-    ScanResult *r = new ScanResult();
-
-    r->mBssid = strdup(mBssid);
-    r->mFreq = mFreq;
-    r->mLevel = mLevel;
-    r->mFlags = strdup(mFlags);
-    r->mSsid = strdup(mSsid);
-
-    return r;
-}
diff --git a/nexus/ScanResult.h b/nexus/ScanResult.h
deleted file mode 100644
index 68ad0f0..0000000
--- a/nexus/ScanResult.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SCAN_RESULT_H
-#define _SCAN_RESULT_H
-
-#include <sys/types.h>
-
-#include <utils/List.h>
-
-class ScanResult {
-    char     *mBssid;
-    uint32_t mFreq;
-    int      mLevel;
-    char     *mFlags;
-    char     *mSsid;
-
-private:
-    ScanResult();
-
-public:
-    ScanResult(char *rawResult);
-    virtual ~ScanResult();
-
-    ScanResult *clone();
-
-    const char *getBssid() { return mBssid; }
-    uint32_t getFreq() { return mFreq; }
-    int getLevel() { return mLevel; }
-    const char *getFlags() { return mFlags; }
-    const char *getSsid() { return mSsid; }
-};
-
-typedef android::List<ScanResult *> ScanResultCollection;
-
-#endif
diff --git a/nexus/Supplicant.cpp b/nexus/Supplicant.cpp
deleted file mode 100644
index b604698..0000000
--- a/nexus/Supplicant.cpp
+++ /dev/null
@@ -1,677 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#define LOG_TAG "Supplicant"
-#include <cutils/log.h>
-#include <cutils/properties.h>
-
-#include "private/android_filesystem_config.h"
-
-#include <sysutils/ServiceManager.h>
-
-#include "Supplicant.h"
-#include "SupplicantListener.h"
-#include "NetworkManager.h"
-#include "WifiController.h"
-#include "SupplicantStatus.h"
-
-#include "libwpa_client/wpa_ctrl.h"
-
-#define IFACE_DIR        "/data/system/wpa_supplicant"
-#define DRIVER_PROP_NAME "wlan.driver.status"
-#define SUPPLICANT_SERVICE_NAME  "wpa_supplicant"
-#define SUPP_CONFIG_TEMPLATE "/system/etc/wifi/wpa_supplicant.conf"
-#define SUPP_CONFIG_FILE "/data/misc/wifi/wpa_supplicant.conf"
-
-Supplicant::Supplicant(WifiController *wc, ISupplicantEventHandler *handlers) {
-    mHandlers = handlers;
-    mController = wc;
-    mInterfaceName = NULL;
-    mCtrl = NULL;
-    mMonitor = NULL;
-    mListener = NULL;
-   
-    mServiceManager = new ServiceManager();
-
-    mNetworks = new WifiNetworkCollection();
-    pthread_mutex_init(&mNetworksLock, NULL);
-}
-
-Supplicant::~Supplicant() {
-    delete mServiceManager;
-    if (mInterfaceName)
-        free(mInterfaceName);
-}
-
-int Supplicant::start() {
-
-    if (setupConfig()) {
-        ALOGW("Unable to setup supplicant.conf");
-    }
-
-    if (mServiceManager->start(SUPPLICANT_SERVICE_NAME)) {
-        ALOGE("Error starting supplicant (%s)", strerror(errno));
-        return -1;
-    }
-
-    wpa_ctrl_cleanup();
-    if (connectToSupplicant()) {
-        ALOGE("Error connecting to supplicant (%s)\n", strerror(errno));
-        return -1;
-    }
-    
-    if (retrieveInterfaceName()) {
-        ALOGE("Error retrieving interface name (%s)\n", strerror(errno));
-        return -1;
-    }
-
-    return 0;
-}
-
-int Supplicant::stop() {
-
-    if (mListener->stopListener()) {
-        ALOGW("Unable to stop supplicant listener (%s)", strerror(errno));
-        return -1;
-    }
-
-    if (mServiceManager->stop(SUPPLICANT_SERVICE_NAME)) {
-        ALOGW("Error stopping supplicant (%s)", strerror(errno));
-    }
-
-    if (mCtrl) {
-        wpa_ctrl_close(mCtrl);
-        mCtrl = NULL;
-    }
-    if (mMonitor) {
-        wpa_ctrl_close(mMonitor);
-        mMonitor = NULL;
-    }
-
-    return 0;
-}
-
-bool Supplicant::isStarted() {
-    return mServiceManager->isRunning(SUPPLICANT_SERVICE_NAME);
-}
-
-int Supplicant::sendCommand(const char *cmd, char *reply, size_t *reply_len) {
-
-    if (!mCtrl) {
-        errno = ENOTCONN;
-        return -1;
-    }
-
-//    ALOGD("sendCommand(): -> '%s'", cmd);
-
-    int rc;
-    memset(reply, 0, *reply_len);
-    if ((rc = wpa_ctrl_request(mCtrl, cmd, strlen(cmd), reply, reply_len, NULL)) == -2)  {
-        errno = ETIMEDOUT;
-        return -1;
-    } else if (rc < 0 || !strncmp(reply, "FAIL", 4)) {
-        strcpy(reply, "FAIL");
-        errno = EIO;
-        return -1;
-    }
-
- //   ALOGD("sendCommand(): <- '%s'", reply);
-    return 0;
-}
-SupplicantStatus *Supplicant::getStatus() {
-    char *reply;
-    size_t len = 4096;
-
-    if (!(reply = (char *) malloc(len))) {
-        errno = ENOMEM;
-        return NULL;
-    }
-
-    if (sendCommand("STATUS", reply, &len)) {
-        free(reply);
-        return NULL;
-    }
-
-    SupplicantStatus *ss = SupplicantStatus::createStatus(reply, len);
-  
-    free (reply);
-    return ss;
-}
-
-/*
- * Retrieves the list of networks from Supplicant
- * and merge them into our current list
- */
-int Supplicant::refreshNetworkList() {
-    char *reply;
-    size_t len = 4096;
-
-    if (!(reply = (char *) malloc(len))) {
-        errno = ENOMEM;
-        return -1;
-    }
-
-    if (sendCommand("LIST_NETWORKS", reply, &len)) {
-        free(reply);
-        return -1;
-    }
-
-    char *linep;
-    char *linep_next = NULL;
-
-    if (!strtok_r(reply, "\n", &linep_next)) {
-        ALOGW("Malformatted network list\n");
-        free(reply);
-        errno = EIO;
-        return -1;
-    }
-
-    PropertyManager *pm = NetworkManager::Instance()->getPropMngr();
-    pthread_mutex_lock(&mNetworksLock);
-
-    int num_added = 0;
-    int num_refreshed = 0;
-    int num_removed = 0;
-    while((linep = strtok_r(NULL, "\n", &linep_next))) {
-        // TODO: Move the decode into a static method so we
-        // don't create new_wn when we don't have to.
-        WifiNetwork *new_wn = new WifiNetwork(mController, this, linep);
-        WifiNetwork *merge_wn;
-
-        if ((merge_wn = this->lookupNetwork_UNLOCKED(new_wn->getNetworkId()))) {
-            num_refreshed++;
-            if (merge_wn->refresh()) {
-                ALOGW("Error refreshing network %d (%s)",
-                     merge_wn->getNetworkId(), strerror(errno));
-                }
-            delete new_wn;
-        } else {
-            num_added++;
-            char new_ns[20];
-            snprintf(new_ns, sizeof(new_ns), "wifi.net.%d", new_wn->getNetworkId());
-            new_wn->attachProperties(pm, new_ns);
-            mNetworks->push_back(new_wn);
-            if (new_wn->refresh()) {
-                ALOGW("Unable to refresh network id %d (%s)",
-                    new_wn->getNetworkId(), strerror(errno));
-            }
-        }
-    }
-
-    if (!mNetworks->empty()) {
-        // TODO: Add support for detecting removed networks
-        WifiNetworkCollection::iterator i;
-
-        for (i = mNetworks->begin(); i != mNetworks->end(); ++i) {
-            if (0) {
-                num_removed++;
-                char del_ns[20];
-                snprintf(del_ns, sizeof(del_ns), "wifi.net.%d", (*i)->getNetworkId());
-                (*i)->detachProperties(pm, del_ns);
-                delete (*i);
-                i = mNetworks->erase(i);
-            }
-        }
-    }
-
-
-    ALOGD("Networks added %d, refreshed %d, removed %d\n",
-         num_added, num_refreshed, num_removed);
-    pthread_mutex_unlock(&mNetworksLock);
-
-    free(reply);
-    return 0;
-}
-
-int Supplicant::connectToSupplicant() {
-    if (!isStarted())
-        ALOGW("Supplicant service not running");
-
-    mCtrl = wpa_ctrl_open("tiwlan0"); // XXX:
-    if (mCtrl == NULL) {
-        ALOGE("Unable to open connection to supplicant on \"%s\": %s",
-             "tiwlan0", strerror(errno));
-        return -1;
-    }
-    mMonitor = wpa_ctrl_open("tiwlan0");
-    if (mMonitor == NULL) {
-        wpa_ctrl_close(mCtrl);
-        mCtrl = NULL;
-        return -1;
-    }
-    if (wpa_ctrl_attach(mMonitor) != 0) {
-        wpa_ctrl_close(mMonitor);
-        wpa_ctrl_close(mCtrl);
-        mCtrl = mMonitor = NULL;
-        return -1;
-    }
-
-    mListener = new SupplicantListener(mHandlers, mMonitor);
-
-    if (mListener->startListener()) {
-        ALOGE("Error - unable to start supplicant listener");
-        stop();
-        return -1;
-    }
-    return 0;
-}
-
-int Supplicant::setScanMode(bool active) {
-    char reply[255];
-    size_t len = sizeof(reply);
-
-    if (sendCommand((active ? "DRIVER SCAN-ACTIVE" : "DRIVER SCAN-PASSIVE"),
-                     reply, &len)) {
-        ALOGW("triggerScan(%d): Error setting scan mode (%s)", active,
-             strerror(errno));
-        return -1;
-    }
-    return 0;
-}
-
-int Supplicant::triggerScan() {
-    char reply[255];
-    size_t len = sizeof(reply);
-
-    if (sendCommand("SCAN", reply, &len)) {
-        ALOGW("triggerScan(): Error initiating scan");
-        return -1;
-    }
-    return 0;
-}
-
-int Supplicant::getRssi(int *buffer) {
-    char reply[64];
-    size_t len = sizeof(reply);
-
-    if (sendCommand("DRIVER RSSI", reply, &len)) {
-        ALOGW("Failed to get RSSI (%s)", strerror(errno));
-        return -1;
-    }
-
-    char *next = reply;
-    char *s;
-    for (int i = 0; i < 3; i++) {
-        if (!(s = strsep(&next, " "))) {
-            ALOGE("Error parsing RSSI");
-            errno = EIO;
-            return -1;
-        }
-    }
-    *buffer = atoi(s);
-    return 0;
-}
-
-int Supplicant::getLinkSpeed() {
-    char reply[64];
-    size_t len = sizeof(reply);
-
-    if (sendCommand("DRIVER LINKSPEED", reply, &len)) {
-        ALOGW("Failed to get LINKSPEED (%s)", strerror(errno));
-        return -1;
-    }
-
-    char *next = reply;
-    char *s;
-
-    if (!(s = strsep(&next, " "))) {
-        ALOGE("Error parsing LINKSPEED");
-        errno = EIO;
-        return -1;
-    }
-
-    if (!(s = strsep(&next, " "))) {
-        ALOGE("Error parsing LINKSPEED");
-        errno = EIO;
-        return -1;
-    }
-    return atoi(s);
-}
-
-int Supplicant::stopDriver() {
-    char reply[64];
-    size_t len = sizeof(reply);
-
-    ALOGD("stopDriver()");
-
-    if (sendCommand("DRIVER STOP", reply, &len)) {
-        ALOGW("Failed to stop driver (%s)", strerror(errno));
-        return -1;
-    }
-    return 0;
-}
-
-int Supplicant::startDriver() {
-    char reply[64];
-    size_t len = sizeof(reply);
-
-    ALOGD("startDriver()");
-    if (sendCommand("DRIVER START", reply, &len)) {
-        ALOGW("Failed to start driver (%s)", strerror(errno));
-        return -1;
-    }
-    return 0;
-}
-
-WifiNetwork *Supplicant::createNetwork() {
-    char reply[255];
-    size_t len = sizeof(reply) -1;
-
-    if (sendCommand("ADD_NETWORK", reply, &len))
-        return NULL;
-
-    if (reply[strlen(reply) -1] == '\n')
-        reply[strlen(reply) -1] = '\0';
-
-    WifiNetwork *wn = new WifiNetwork(mController, this, atoi(reply));
-    PropertyManager *pm = NetworkManager::Instance()->getPropMngr();
-    pthread_mutex_lock(&mNetworksLock);
-    char new_ns[20];
-    snprintf(new_ns, sizeof(new_ns), "wifi.net.%d", wn->getNetworkId());
-    wn->attachProperties(pm, new_ns);
-    mNetworks->push_back(wn);
-    pthread_mutex_unlock(&mNetworksLock);
-    return wn;
-}
-
-int Supplicant::removeNetwork(WifiNetwork *wn) {
-    char req[64];
-
-    sprintf(req, "REMOVE_NETWORK %d", wn->getNetworkId());
-    char reply[32];
-    size_t len = sizeof(reply) -1;
-
-    if (sendCommand(req, reply, &len))
-        return -1;
-
-    pthread_mutex_lock(&mNetworksLock);
-    WifiNetworkCollection::iterator it;
-    for (it = mNetworks->begin(); it != mNetworks->end(); ++it) {
-        if ((*it) == wn) {
-            mNetworks->erase(it);
-            break;
-        }
-    }
-    pthread_mutex_unlock(&mNetworksLock);
-    return 0;
-}
-
-WifiNetwork *Supplicant::lookupNetwork(int networkId) {
-    pthread_mutex_lock(&mNetworksLock);
-    WifiNetwork *wn = lookupNetwork_UNLOCKED(networkId);
-    pthread_mutex_unlock(&mNetworksLock);
-    return wn;
-}
-
-WifiNetwork *Supplicant::lookupNetwork_UNLOCKED(int networkId) {
-    WifiNetworkCollection::iterator it;
-    for (it = mNetworks->begin(); it != mNetworks->end(); ++it) {
-        if ((*it)->getNetworkId() == networkId) {
-            return *it;
-        }
-    }
-    errno = ENOENT;
-    return NULL;
-}
-
-WifiNetworkCollection *Supplicant::createNetworkList() {
-    WifiNetworkCollection *d = new WifiNetworkCollection();
-    WifiNetworkCollection::iterator i;
-
-    pthread_mutex_lock(&mNetworksLock);
-    for (i = mNetworks->begin(); i != mNetworks->end(); ++i)
-        d->push_back((*i)->clone());
-
-    pthread_mutex_unlock(&mNetworksLock);
-    return d;
-}
-
-int Supplicant::setupConfig() {
-    char buf[2048];
-    int srcfd, destfd;
-    int nread;
-
-    if (access(SUPP_CONFIG_FILE, R_OK|W_OK) == 0) {
-        return 0;
-    } else if (errno != ENOENT) {
-        ALOGE("Cannot access \"%s\": %s", SUPP_CONFIG_FILE, strerror(errno));
-        return -1;
-    }
-
-    srcfd = open(SUPP_CONFIG_TEMPLATE, O_RDONLY);
-    if (srcfd < 0) {
-        ALOGE("Cannot open \"%s\": %s", SUPP_CONFIG_TEMPLATE, strerror(errno));
-        return -1;
-    }
-
-    destfd = open(SUPP_CONFIG_FILE, O_CREAT|O_WRONLY, 0660);
-    if (destfd < 0) {
-        close(srcfd);
-        ALOGE("Cannot create \"%s\": %s", SUPP_CONFIG_FILE, strerror(errno));
-        return -1;
-    }
-
-    while ((nread = read(srcfd, buf, sizeof(buf))) != 0) {
-        if (nread < 0) {
-            ALOGE("Error reading \"%s\": %s", SUPP_CONFIG_TEMPLATE, strerror(errno));
-            close(srcfd);
-            close(destfd);
-            unlink(SUPP_CONFIG_FILE);
-            return -1;
-        }
-        write(destfd, buf, nread);
-    }
-
-    close(destfd);
-    close(srcfd);
-
-    if (chown(SUPP_CONFIG_FILE, AID_SYSTEM, AID_WIFI) < 0) {
-        ALOGE("Error changing group ownership of %s to %d: %s",
-             SUPP_CONFIG_FILE, AID_WIFI, strerror(errno));
-        unlink(SUPP_CONFIG_FILE);
-        return -1;
-    }
-    return 0;
-}
-
-int Supplicant::setNetworkVar(int networkId, const char *var, const char *val) {
-    char reply[255];
-    size_t len = sizeof(reply) -1;
-
-    ALOGD("netid %d, var '%s' = '%s'", networkId, var, val);
-    char *tmp;
-    asprintf(&tmp, "SET_NETWORK %d %s %s", networkId, var, val);
-    if (sendCommand(tmp, reply, &len)) {
-        free(tmp);
-        return -1;
-    }
-    free(tmp);
-
-    len = sizeof(reply) -1;
-    if (sendCommand("SAVE_CONFIG", reply, &len)) {
-        ALOGE("Error saving config after %s = %s", var, val);
-        return -1;
-    }
-    return 0;
-}
-
-const char *Supplicant::getNetworkVar(int networkId, const char *var,
-                                      char *buffer, size_t max) {
-    size_t len = max - 1;
-    char *tmp;
-
-    asprintf(&tmp, "GET_NETWORK %d %s", networkId, var);
-    if (sendCommand(tmp, buffer, &len)) {
-        free(tmp);
-        return NULL;
-    }
-    free(tmp);
-    return buffer;
-}
-
-int Supplicant::enableNetwork(int networkId, bool enabled) {
-    char req[64];
-
-    if (enabled)
-        sprintf(req, "ENABLE_NETWORK %d", networkId);
-    else
-        sprintf(req, "DISABLE_NETWORK %d", networkId);
-
-    char reply[16];
-    size_t len = sizeof(reply) -1;
-
-    if (sendCommand(req, reply, &len))
-        return -1;
-    return 0;
-}
-
-int Supplicant::enablePacketFilter() {
-    char req[128];
-    char reply[16];
-    size_t len;
-    int i;
-    
-    for (i = 0; i <=3; i++) {
-        snprintf(req, sizeof(req), "DRIVER RXFILTER-ADD %d", i);
-        len = sizeof(reply);
-        if (sendCommand(req, reply, &len))
-            return -1;
-    }
-
-    len = sizeof(reply);
-    if (sendCommand("DRIVER RXFILTER-START", reply, &len))
-        return -1;
-    return 0;
-}
-  
-int Supplicant::disablePacketFilter() {
-    char req[128];
-    char reply[16];
-    size_t len;
-    int i;
-    
-    len = sizeof(reply);
-    if (sendCommand("DRIVER RXFILTER-STOP", reply, &len))
-        return -1;
-
-    for (i = 3; i >=0; i--) {
-        snprintf(req, sizeof(req), "DRIVER RXFILTER-REMOVE %d", i);
-        len = sizeof(reply);
-        if (sendCommand(req, reply, &len))
-            return -1;
-    }
-    return 0;
-}
-
-int Supplicant::enableBluetoothCoexistenceScan() {
-    char req[128];
-    char reply[16];
-    size_t len;
-    int i;
-    
-    len = sizeof(reply);
-    if (sendCommand("DRIVER BTCOEXSCAN-START", reply, &len))
-        return -1;
-    return 0;
-}
-
-int Supplicant::disableBluetoothCoexistenceScan() {
-    char req[128];
-    char reply[16];
-    size_t len;
-    int i;
-    
-    len = sizeof(reply);
-    if (sendCommand("DRIVER BTCOEXSCAN-STOP", reply, &len))
-        return -1;
-    return 0;
-}
-
-int Supplicant::setBluetoothCoexistenceMode(int mode) {
-    char req[64];
-
-    sprintf(req, "DRIVER BTCOEXMODE %d", mode);
-
-    char reply[16];
-    size_t len = sizeof(reply) -1;
-
-    if (sendCommand(req, reply, &len))
-        return -1;
-    return 0;
-}
-
-int Supplicant::setApScanMode(int mode) {
-    char req[64];
-
-//    ALOGD("setApScanMode(%d)", mode);
-    sprintf(req, "AP_SCAN %d", mode);
-
-    char reply[16];
-    size_t len = sizeof(reply) -1;
-
-    if (sendCommand(req, reply, &len))
-        return -1;
-    return 0;
-}
-
-
-int Supplicant::retrieveInterfaceName() {
-    char reply[255];
-    size_t len = sizeof(reply) -1;
-
-    if (sendCommand("INTERFACES", reply, &len))
-        return -1;
-
-    reply[strlen(reply)-1] = '\0';
-    mInterfaceName = strdup(reply);
-    return 0;
-}
-
-int Supplicant::reconnect() {
-    char req[128];
-    char reply[16];
-    size_t len;
-    int i;
-    
-    len = sizeof(reply);
-    if (sendCommand("RECONNECT", reply, &len))
-        return -1;
-    return 0;
-}
-
-int Supplicant::disconnect() {
-    char req[128];
-    char reply[16];
-    size_t len;
-    int i;
-    
-    len = sizeof(reply);
-    if (sendCommand("DISCONNECT", reply, &len))
-        return -1;
-    return 0;
-}
-
-int Supplicant::getNetworkCount() {
-    pthread_mutex_lock(&mNetworksLock);
-    int cnt = mNetworks->size();
-    pthread_mutex_unlock(&mNetworksLock);
-    return cnt;
-}
diff --git a/nexus/Supplicant.h b/nexus/Supplicant.h
deleted file mode 100644
index 3900f4f..0000000
--- a/nexus/Supplicant.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SUPPLICANT_H
-#define _SUPPLICANT_H
-
-struct wpa_ctrl;
-class SupplicantListener;
-class ServiceManager;
-class Controller;
-class WifiController;
-class SupplicantStatus;
-
-#include <pthread.h>
-
-#include "WifiNetwork.h"
-#include "ISupplicantEventHandler.h"
-
-class Supplicant {
-    struct wpa_ctrl      *mCtrl;
-    struct wpa_ctrl      *mMonitor;
-    SupplicantListener   *mListener;
-    ServiceManager       *mServiceManager;
-    WifiController       *mController;
-    char                 *mInterfaceName;
-
-    WifiNetworkCollection   *mNetworks;
-    pthread_mutex_t         mNetworksLock;
-    ISupplicantEventHandler *mHandlers;
- 
-public:
-    Supplicant(WifiController *wc, ISupplicantEventHandler *handlers);
-    virtual ~Supplicant();
-
-    int start();
-    int stop();
-    bool isStarted();
-
-    int setScanMode(bool active);
-    int triggerScan();
-
-    WifiNetwork *createNetwork();
-    WifiNetwork *lookupNetwork(int networkId);
-    int removeNetwork(WifiNetwork *net);
-    WifiNetworkCollection *createNetworkList();
-    int refreshNetworkList();
-
-    int setNetworkVar(int networkId, const char *var, const char *value);
-    const char *getNetworkVar(int networkid, const char *var, char *buffer,
-                              size_t max);
-    int enableNetwork(int networkId, bool enabled);
-
-    int disconnect();
-    int reconnect();
-    int reassociate();
-    int setApScanMode(int mode);
-    int enablePacketFilter();
-    int disablePacketFilter();
-    int setBluetoothCoexistenceMode(int mode);
-    int enableBluetoothCoexistenceScan();
-    int disableBluetoothCoexistenceScan();
-    int stopDriver();
-    int startDriver();
-    int getRssi(int *buffer);
-    int getLinkSpeed();
-    int getNetworkCount();
-
-    SupplicantStatus *getStatus();
-
-    Controller *getController() { return (Controller *) mController; }
-    const char *getInterfaceName() { return mInterfaceName; }
-
-    int sendCommand(const char *cmd, char *reply, size_t *reply_len);
-
-private:
-    int connectToSupplicant();
-    int setupConfig();
-    int retrieveInterfaceName();
-    WifiNetwork *lookupNetwork_UNLOCKED(int networkId);
-};
-
-#endif
diff --git a/nexus/SupplicantAssociatedEvent.cpp b/nexus/SupplicantAssociatedEvent.cpp
deleted file mode 100644
index e40411e..0000000
--- a/nexus/SupplicantAssociatedEvent.cpp
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-
-#define LOG_TAG "SupplicantAssociatedEvent"
-#include <cutils/log.h>
-
-#include "SupplicantAssociatedEvent.h"
-
-SupplicantAssociatedEvent::SupplicantAssociatedEvent(int level, char *event,
-                                                     size_t len) :
-                           SupplicantEvent(SupplicantEvent::EVENT_ASSOCIATED,
-                                           level) {
-    char *p = event;
-
-    // "00:13:46:40:40:aa"
-    mBssid = (char *) malloc(18);
-    strncpy(mBssid, p, 17);
-    mBssid[17] = '\0';
-}
-
-SupplicantAssociatedEvent::~SupplicantAssociatedEvent() {
-    if (mBssid)
-        free(mBssid);
-}
-
diff --git a/nexus/SupplicantAssociatedEvent.h b/nexus/SupplicantAssociatedEvent.h
deleted file mode 100644
index aa33c59..0000000
--- a/nexus/SupplicantAssociatedEvent.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantAssociatedEvent_H
-#define _SupplicantAssociatedEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantAssociatedEvent : public SupplicantEvent {
-    char *mBssid;
-    char *mSsid;
-    int  mFreq;
-
-public:
-    SupplicantAssociatedEvent(int level, char *event, size_t len);
-    virtual ~SupplicantAssociatedEvent();
-
-    const char *getBssid() { return mBssid; }
-};
-
-#endif
diff --git a/nexus/SupplicantAssociatingEvent.cpp b/nexus/SupplicantAssociatingEvent.cpp
deleted file mode 100644
index 8fe502e..0000000
--- a/nexus/SupplicantAssociatingEvent.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-
-#define LOG_TAG "SupplicantAssociatingEvent"
-#include <cutils/log.h>
-
-#include "SupplicantAssociatingEvent.h"
-
-SupplicantAssociatingEvent::SupplicantAssociatingEvent(int level, char *event,
-                                                     size_t len) :
-                           SupplicantEvent(SupplicantEvent::EVENT_ASSOCIATING,
-                                           level) {
-    char *p = event;
-
-    mBssid = NULL;
-    mSsid = NULL;
-    mFreq = -1;
-
-    // SSID 'default' 
-    // OR
-    // "00:13:46:40:40:aa (SSID='default' freq=2437 MHz)"
-
-    if (strncmp(event, "SSID", 4)) {
-        mBssid = (char *) malloc(18);
-        strncpy(mBssid, p, 17);
-        mBssid[17] = '\0';
-        p += 25;
-
-        // "00:13:46:40:40:aa (SSID='default' freq=2437 MHz)"
-        //                           ^
-        //                           p
-        char *q = index(p, '\'');
-        if (!q) {
-            ALOGE("Unable to decode SSID (p = {%s})\n", p);
-            return;
-        }
-        mSsid = (char *) malloc((q - p) +1);
-        strncpy(mSsid, p, q-p);
-        mSsid[q-p] = '\0';
-
-        p = q + 7;
-    
-        // "00:13:46:40:40:aa (SSID='default' freq=2437 MHz)"
-        //                                         ^
-        //                                         p
-        if (!(q = index(p, ' '))) {
-            ALOGE("Unable to decode frequency\n");
-            return;
-        }
-        *q = '\0';
-        mFreq = atoi(p);
-    } else {
-        p+= 6;
-
-        // SSID 'default' 
-        //       ^
-        //       p
-
-        char *q = index(p, '\'');
-        if (!q) {
-            ALOGE("Unable to decode SSID (p = {%s})\n", p);
-            return;
-        }
-        mSsid = (char *) malloc((q - p) +1);
-        strncpy(mSsid, p, q-p);
-        mSsid[q-p] = '\0';
-    }
-}
-
-SupplicantAssociatingEvent::SupplicantAssociatingEvent(const char *bssid, 
-                                                     const char *ssid,
-                                                     int freq) :
-                           SupplicantEvent(SupplicantEvent::EVENT_ASSOCIATING, -1) {
-    mBssid = strdup(bssid);
-    mSsid= strdup(ssid);
-    mFreq = freq;
-}
-
-SupplicantAssociatingEvent::~SupplicantAssociatingEvent() {
-    if (mBssid)
-        free(mBssid);
-    if (mSsid)
-        free(mSsid);
-}
-
diff --git a/nexus/SupplicantAssociatingEvent.h b/nexus/SupplicantAssociatingEvent.h
deleted file mode 100644
index d3a4d5c..0000000
--- a/nexus/SupplicantAssociatingEvent.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantAssociatingEvent_H
-#define _SupplicantAssociatingEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantAssociatingEvent : public SupplicantEvent {
-    char *mBssid;
-    char *mSsid;
-    int  mFreq;
-
-public:
-    SupplicantAssociatingEvent(int level, char *event, size_t len);
-    SupplicantAssociatingEvent(const char *bssid, const char *ssid, int freq);
-    virtual ~SupplicantAssociatingEvent();
-
-    const char *getBssid() { return mBssid; }
-    const char *getSsid() { return mSsid; }
-    int getFreq() { return mFreq;}
-};
-
-#endif
diff --git a/nexus/SupplicantConnectedEvent.cpp b/nexus/SupplicantConnectedEvent.cpp
deleted file mode 100644
index 107c766..0000000
--- a/nexus/SupplicantConnectedEvent.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "SupplicantConnectedEvent"
-#include <cutils/log.h>
-
-#include "SupplicantConnectedEvent.h"
-
-SupplicantConnectedEvent::SupplicantConnectedEvent(int level, char *event,
-                                                   size_t len) :
-                          SupplicantEvent(SupplicantEvent::EVENT_CONNECTED,
-                                          level) {
-    char *p;
-
-    //  "- Connection to 00:13:46:40:40:aa completed (auth) [id=1 id_str=], 89"
-    
-    if ((p = index(event + 2, ' ')) && (++p = index(p, ' '))) {
-        mBssid = (char *) malloc(18);
-        strncpy(mBssid, ++p, 17);
-        mBssid[17] = '\0';
-
-        //  "- Connection to 00:13:46:40:40:aa completed (auth) [id=1 id_str=], 89"
-        //                   ^
-        //                   p
-        
-        if ((p = index(p, ' ')) && ((++p = index(p, ' ')))) {
-            if (!strncmp(++p, "(auth)", 6))
-                mReassociated = false;
-            else
-                mReassociated = true;
-        } else
-            ALOGE("Unable to decode re-assocation");
-    } else
-        ALOGE("Unable to decode event");
-}
-
-SupplicantConnectedEvent::SupplicantConnectedEvent(const char *bssid, 
-                                                   bool reassocated) :
-                          SupplicantEvent(SupplicantEvent::EVENT_CONNECTED, -1) {
-    mBssid = strdup(bssid);
-    mReassociated = reassocated;
-}
-
-SupplicantConnectedEvent::~SupplicantConnectedEvent() {
-    if (mBssid)
-        free(mBssid);
-}
-
diff --git a/nexus/SupplicantConnectedEvent.h b/nexus/SupplicantConnectedEvent.h
deleted file mode 100644
index 03e9842..0000000
--- a/nexus/SupplicantConnectedEvent.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantConnectedEvent_H
-#define _SupplicantConnectedEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantConnectedEvent : public SupplicantEvent {
-private:
-    char *mBssid;
-    bool mReassociated;
-
-public:
-    SupplicantConnectedEvent(int level, char *event, size_t len);
-    SupplicantConnectedEvent(const char *bssid, bool reassicated);
-    virtual ~SupplicantConnectedEvent();
-
-    const char *getBssid() { return mBssid; }
-    bool getReassociated() { return mReassociated; }
-};
-
-#endif
diff --git a/nexus/SupplicantConnectionTimeoutEvent.cpp b/nexus/SupplicantConnectionTimeoutEvent.cpp
deleted file mode 100644
index 8b8a7d7..0000000
--- a/nexus/SupplicantConnectionTimeoutEvent.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "SupplicantConnectionTimeoutEvent"
-#include <cutils/log.h>
-
-#include "SupplicantConnectionTimeoutEvent.h"
-
-SupplicantConnectionTimeoutEvent::SupplicantConnectionTimeoutEvent(int level, char *event,
-                                                   size_t len) :
-                          SupplicantEvent(SupplicantEvent::EVENT_CONNECTIONTIMEOUT,
-                                          level) {
-    // 00:13:46:40:40:aa timed out.'
-    mBssid = (char *) malloc(18);
-    strncpy(mBssid, event, 17);
-    mBssid[17] = '\0';
-}
-
-SupplicantConnectionTimeoutEvent::~SupplicantConnectionTimeoutEvent() {
-    if (mBssid)
-        free(mBssid);
-}
-
diff --git a/nexus/SupplicantConnectionTimeoutEvent.h b/nexus/SupplicantConnectionTimeoutEvent.h
deleted file mode 100644
index 0d2606d..0000000
--- a/nexus/SupplicantConnectionTimeoutEvent.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantConnectionTimeoutEvent_H
-#define _SupplicantConnectionTimeoutEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantConnectionTimeoutEvent : public SupplicantEvent {
-private:
-    char *mBssid;
-    bool mReassociated;
-
-public:
-    SupplicantConnectionTimeoutEvent(int level, char *event, size_t len);
-    virtual ~SupplicantConnectionTimeoutEvent();
-
-    const char *getBssid() { return mBssid; }
-};
-
-#endif
diff --git a/nexus/SupplicantDisconnectedEvent.cpp b/nexus/SupplicantDisconnectedEvent.cpp
deleted file mode 100644
index 11e499d..0000000
--- a/nexus/SupplicantDisconnectedEvent.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "SupplicantDisconnectedEvent"
-#include <cutils/log.h>
-
-#include "SupplicantDisconnectedEvent.h"
-
-SupplicantDisconnectedEvent::SupplicantDisconnectedEvent(int level, char *event,
-                                                       size_t len) :
-                            SupplicantEvent(SupplicantEvent::EVENT_DISCONNECTED,
-                                            level) {
-}
-
-SupplicantDisconnectedEvent::SupplicantDisconnectedEvent() :
-                            SupplicantEvent(SupplicantEvent::EVENT_DISCONNECTED, -1) {
-}
-
-SupplicantDisconnectedEvent::~SupplicantDisconnectedEvent() {
-}
diff --git a/nexus/SupplicantDisconnectedEvent.h b/nexus/SupplicantDisconnectedEvent.h
deleted file mode 100644
index c09ec62..0000000
--- a/nexus/SupplicantDisconnectedEvent.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantDisconnectedEvent_H
-#define _SupplicantDisconnectedEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantDisconnectedEvent : public SupplicantEvent {
-
-public:
-    SupplicantDisconnectedEvent(int level, char *event, size_t len);
-    SupplicantDisconnectedEvent();
-    virtual ~SupplicantDisconnectedEvent();
-};
-
-#endif
diff --git a/nexus/SupplicantEvent.h b/nexus/SupplicantEvent.h
deleted file mode 100644
index 9d7cbd9..0000000
--- a/nexus/SupplicantEvent.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SUPPLICANT_EVENT_H
-#define _SUPPLICANT_EVENT_H
-
-#include <sys/types.h>
-
-class SupplicantEvent {
-private:
-    int mType;
-    int mLevel;
-
-public:
-    static const int EVENT_UNKNOWN           = 0;
-    static const int EVENT_CONNECTED         = 1;
-    static const int EVENT_DISCONNECTED      = 2;
-    static const int EVENT_TERMINATING       = 3;
-    static const int EVENT_PASSWORD_CHANGED  = 4;
-    static const int EVENT_EAP_NOTIFICATION  = 5;
-    static const int EVENT_EAP_STARTED       = 6;
-    static const int EVENT_EAP_METHOD        = 7;
-    static const int EVENT_EAP_SUCCESS       = 8;
-    static const int EVENT_EAP_FAILURE       = 9;
-    static const int EVENT_SCAN_RESULTS      = 10;
-    static const int EVENT_STATE_CHANGE      = 11;
-    static const int EVENT_LINK_SPEED        = 12;
-    static const int EVENT_DRIVER_STATE      = 13;
-    static const int EVENT_ASSOCIATING       = 14;
-    static const int EVENT_ASSOCIATED        = 15;
-    static const int EVENT_CONNECTIONTIMEOUT = 16;
-
-public:
-    SupplicantEvent(int type, int level);
-    virtual ~SupplicantEvent() {}
-
-    int getType() { return mType; }
-    int getLevel() { return mLevel; }
-};
-
-#endif
diff --git a/nexus/SupplicantEventFactory.cpp b/nexus/SupplicantEventFactory.cpp
deleted file mode 100644
index f91db15..0000000
--- a/nexus/SupplicantEventFactory.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-
-#define LOG_TAG "SupplicantEventFactory"
-#include <cutils/log.h>
-
-#include "SupplicantEvent.h"
-#include "SupplicantEventFactory.h"
-#include "SupplicantAssociatingEvent.h"
-#include "SupplicantAssociatedEvent.h"
-#include "SupplicantConnectedEvent.h"
-#include "SupplicantStateChangeEvent.h"
-#include "SupplicantScanResultsEvent.h"
-#include "SupplicantConnectionTimeoutEvent.h"
-#include "SupplicantDisconnectedEvent.h"
-#if 0
-#include "SupplicantTerminatingEvent.h"
-#include "SupplicantPasswordChangedEvent.h"
-#include "SupplicantEapNotificationEvent.h"
-#include "SupplicantEapStartedEvent.h"
-#include "SupplicantEapMethodEvent.h"
-#include "SupplicantEapSuccessEvent.h"
-#include "SupplicantEapFailureEvent.h"
-#include "SupplicantLinkSpeedEvent.h"
-#include "SupplicantDriverStateEvent.h"
-#endif
-
-#include "libwpa_client/wpa_ctrl.h"
-
-SupplicantEventFactory::SupplicantEventFactory() {
-}
-
-SupplicantEvent *SupplicantEventFactory::createEvent(char *event, size_t len) {
-    int level = 0;
-
-    if (event[0] == '<') {
-        char *match = strchr(event, '>');
-        if (match) {
-            char tmp[16];
-
-            strncpy(tmp, &event[1], (match - event));
-            level = atoi(tmp);
-            event += (match - event) + 1;
-        } else
-            ALOGW("Unclosed level brace in event");
-    } else
-        ALOGW("No level specified in event");
-
-    /*
-     * <N>CTRL-EVENT-XXX
-     *    ^
-     *    +---- event
-     */
-
-    if (!strncmp(event, "Authentication with ", 20)) {
-        if (!strcmp(event + strlen(event) - strlen(" timed out."),
-                    " timed out.")) {
-            return new SupplicantConnectionTimeoutEvent(level,
-                                                        event + 20,
-                                                        len);
-        } else
-            return NULL;
-        
-    } else if (!strncmp(event, "Associated with ", 16))
-        return new SupplicantAssociatedEvent(level, event + 16, len);
-    else if (!strncmp(event, "Trying to associate with ", 25))
-        return new SupplicantAssociatingEvent(level, event + 25, len);
-    else if (!strncmp(event, WPA_EVENT_CONNECTED, strlen(WPA_EVENT_CONNECTED))) {
-        return new SupplicantConnectedEvent(level,
-                                            event + strlen(WPA_EVENT_CONNECTED),
-                                            len);
-    } else if (!strncmp(event, WPA_EVENT_SCAN_RESULTS, strlen(WPA_EVENT_SCAN_RESULTS))) {
-        return new SupplicantScanResultsEvent(level,
-                                              event + strlen(WPA_EVENT_SCAN_RESULTS),
-                                              len);
-    } else if (!strncmp(event, WPA_EVENT_STATE_CHANGE, strlen(WPA_EVENT_STATE_CHANGE))) {
-        return new SupplicantStateChangeEvent(level,
-                                              event + strlen(WPA_EVENT_STATE_CHANGE),
-                                              len);
-    }
-    else if (!strncmp(event, WPA_EVENT_DISCONNECTED, strlen(WPA_EVENT_DISCONNECTED)))
-        return new SupplicantDisconnectedEvent(level, event, len);
-#if 0
-    else if (!strncmp(event, WPA_EVENT_TERMINATING, strlen(WPA_EVENT_TERMINATING)))
-        return new SupplicantTerminatingEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_PASSWORD_CHANGED, strlen(WPA_EVENT_PASSWORD_CHANGED)))
-        return new SupplicantPasswordChangedEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_EAP_NOTIFICATION, strlen(WPA_EVENT_EAP_NOTIFICATION)))
-        return new SupplicantEapNotificationEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_EAP_STARTED, strlen(WPA_EVENT_EAP_STARTED)))
-        return new SupplicantEapStartedEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_EAP_METHOD, strlen(WPA_EVENT_EAP_METHOD)))
-        return new SupplicantEapMethodEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_EAP_SUCCESS, strlen(WPA_EVENT_EAP_SUCCESS)))
-        return new SupplicantEapSuccessEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_EAP_FAILURE, strlen(WPA_EVENT_EAP_FAILURE)))
-        return new SupplicantEapFailureEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_LINK_SPEED, strlen(WPA_EVENT_LINK_SPEED)))
-        return new SupplicantLinkSpeedEvent(event, len);
-    else if (!strncmp(event, WPA_EVENT_DRIVER_STATE, strlen(WPA_EVENT_DRIVER_STATE)))
-         return new SupplicantDriverStateEvent(event, len);
-#endif
-    return NULL;
-}
diff --git a/nexus/SupplicantListener.cpp b/nexus/SupplicantListener.cpp
deleted file mode 100644
index 421d84d..0000000
--- a/nexus/SupplicantListener.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <sys/types.h>
-#include <pthread.h>
-
-#define LOG_TAG "SupplicantListener"
-#include <cutils/log.h>
-
-#include "libwpa_client/wpa_ctrl.h"
-
-#include "SupplicantListener.h"
-#include "ISupplicantEventHandler.h"
-#include "SupplicantEventFactory.h"
-#include "SupplicantEvent.h"
-#include "SupplicantAssociatingEvent.h"
-#include "SupplicantAssociatedEvent.h"
-#include "SupplicantConnectedEvent.h"
-#include "SupplicantScanResultsEvent.h"
-#include "SupplicantStateChangeEvent.h"
-
-SupplicantListener::SupplicantListener(ISupplicantEventHandler *handlers, 
-                                       struct wpa_ctrl *monitor) :
-                    SocketListener(wpa_ctrl_get_fd(monitor), false) {
-    mHandlers = handlers;
-    mMonitor = monitor;
-    mFactory = new SupplicantEventFactory();
-}
-
-bool SupplicantListener::onDataAvailable(SocketClient *cli) {
-    char buf[255];
-    size_t buflen = sizeof(buf);
-    int rc;
-    size_t nread = buflen - 1;
-
-    if ((rc = wpa_ctrl_recv(mMonitor, buf, &nread))) {
-        ALOGE("wpa_ctrl_recv failed (%s)", strerror(errno));
-        return false;
-    }
-
-    buf[nread] = '\0';
-    if (!rc && !nread) {
-        ALOGD("Received EOF on supplicant socket\n");
-        strncpy(buf, WPA_EVENT_TERMINATING " - signal 0 received", buflen-1);
-        buf[buflen-1] = '\0';
-        return false;
-    }
-
-    SupplicantEvent *evt = mFactory->createEvent(buf, nread);
-
-    if (!evt) {
-        ALOGW("Dropping unknown supplicant event '%s'", buf);
-        return true;
-    }
-
-    // Call the appropriate handler
-    if (evt->getType() == SupplicantEvent::EVENT_ASSOCIATING)
-        mHandlers->onAssociatingEvent((SupplicantAssociatingEvent *) evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_ASSOCIATED)
-        mHandlers->onAssociatedEvent((SupplicantAssociatedEvent *) evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_CONNECTED)
-        mHandlers->onConnectedEvent((SupplicantConnectedEvent *) evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_SCAN_RESULTS)
-        mHandlers->onScanResultsEvent((SupplicantScanResultsEvent *) evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_STATE_CHANGE)
-        mHandlers->onStateChangeEvent((SupplicantStateChangeEvent *) evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_CONNECTIONTIMEOUT)
-        mHandlers->onConnectionTimeoutEvent((SupplicantConnectionTimeoutEvent *) evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_DISCONNECTED)
-        mHandlers->onDisconnectedEvent((SupplicantDisconnectedEvent *) evt);
-    else
-        ALOGW("Whoops - no handler available for event '%s'\n", buf);
-#if 0
-    else if (evt->getType() == SupplicantEvent::EVENT_TERMINATING)
-        mHandlers->onTerminatingEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_PASSWORD_CHANGED)
-        mHandlers->onPasswordChangedEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_EAP_NOTIFICATION)
-        mHandlers->onEapNotificationEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_EAP_STARTED)
-        mHandlers->onEapStartedEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_EAP_SUCCESS)
-        mHandlers->onEapSuccessEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_EAP_FAILURE)
-        mHandlers->onEapFailureEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_LINK_SPEED)
-        mHandlers->onLinkSpeedEvent(evt);
-    else if (evt->getType() == SupplicantEvent::EVENT_DRIVER_STATE)
-        mHandlers->onDriverStateEvent(evt);
-#endif
-
-    delete evt;
-
-    return true;
-}
diff --git a/nexus/SupplicantListener.h b/nexus/SupplicantListener.h
deleted file mode 100644
index a1da773..0000000
--- a/nexus/SupplicantListener.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SUPPLICANTLISTENER_H__
-#define _SUPPLICANTLISTENER_H__
-
-#include <sysutils/SocketListener.h>
-
-struct wpa_ctrl;
-class Supplicant;
-class SocketClient;
-class ISupplicantEventHandler;
-class SupplicantEventFactory;
-
-class SupplicantListener: public SocketListener {
-    struct wpa_ctrl         *mMonitor;
-    ISupplicantEventHandler *mHandlers;
-    SupplicantEventFactory  *mFactory;
-    
-public:
-    SupplicantListener(ISupplicantEventHandler *handlers,
-                       struct wpa_ctrl *monitor);
-    virtual ~SupplicantListener() {}
-
-    struct wpa_ctrl *getMonitor() { return mMonitor; }
-
-protected:
-    virtual bool onDataAvailable(SocketClient *c);
-};
-
-#endif
diff --git a/nexus/SupplicantScanResultsEvent.cpp b/nexus/SupplicantScanResultsEvent.cpp
deleted file mode 100644
index c53adad..0000000
--- a/nexus/SupplicantScanResultsEvent.cpp
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "SupplicantScanResultsEvent"
-#include <cutils/log.h>
-
-#include "SupplicantScanResultsEvent.h"
-
-SupplicantScanResultsEvent::SupplicantScanResultsEvent(int level, char *event,
-                                                       size_t len) :
-                            SupplicantEvent(SupplicantEvent::EVENT_SCAN_RESULTS,
-                                            level) {
-}
-
-SupplicantScanResultsEvent::SupplicantScanResultsEvent() :
-                            SupplicantEvent(SupplicantEvent::EVENT_SCAN_RESULTS, -1) {
-}
-
-SupplicantScanResultsEvent::~SupplicantScanResultsEvent() {
-}
-
diff --git a/nexus/SupplicantScanResultsEvent.h b/nexus/SupplicantScanResultsEvent.h
deleted file mode 100644
index 5f82041..0000000
--- a/nexus/SupplicantScanResultsEvent.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantScanResultsEvent_H
-#define _SupplicantScanResultsEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantScanResultsEvent : public SupplicantEvent {
-
-public:
-    SupplicantScanResultsEvent(int level, char *event, size_t len);
-    SupplicantScanResultsEvent();
-    virtual ~SupplicantScanResultsEvent();
-};
-
-#endif
diff --git a/nexus/SupplicantState.cpp b/nexus/SupplicantState.cpp
deleted file mode 100644
index 2815430..0000000
--- a/nexus/SupplicantState.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-
-#define LOG_TAG "SupplicantState"
-#include <cutils/log.h>
-
-#include "SupplicantState.h"
-
-char *SupplicantState::toString(int val, char *buffer, int max) {
-    if (val == SupplicantState::UNKNOWN)
-        strncpy(buffer, "UNKNOWN", max);
-    else if (val == SupplicantState::DISCONNECTED)
-        strncpy(buffer, "DISCONNECTED", max);
-    else if (val == SupplicantState::INACTIVE)
-        strncpy(buffer, "INACTIVE", max);
-    else if (val == SupplicantState::SCANNING)
-        strncpy(buffer, "SCANNING", max);
-    else if (val == SupplicantState::ASSOCIATING)
-        strncpy(buffer, "ASSOCIATING", max);
-    else if (val == SupplicantState::ASSOCIATED)
-        strncpy(buffer, "ASSOCIATED", max);
-    else if (val == SupplicantState::FOURWAY_HANDSHAKE)
-        strncpy(buffer, "FOURWAY_HANDSHAKE", max);
-    else if (val == SupplicantState::GROUP_HANDSHAKE)
-        strncpy(buffer, "GROUP_HANDSHAKE", max);
-    else if (val == SupplicantState::COMPLETED)
-        strncpy(buffer, "COMPLETED", max);
-    else if (val == SupplicantState::IDLE)
-        strncpy(buffer, "IDLE", max);
-    else
-        strncpy(buffer, "(internal error)", max);
-
-    return buffer;
-}
diff --git a/nexus/SupplicantState.h b/nexus/SupplicantState.h
deleted file mode 100644
index 6882f0c..0000000
--- a/nexus/SupplicantState.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SUPPLICANT_STATE_H
-#define _SUPPLICANT_STATE_H
-
-class SupplicantState {
-public:
-    static const int UNKNOWN           = -1;
-    static const int DISCONNECTED      = 0;
-    static const int INACTIVE          = 1;
-    static const int SCANNING          = 2;
-    static const int ASSOCIATING       = 3;
-    static const int ASSOCIATED        = 4;
-    static const int FOURWAY_HANDSHAKE = 5;
-    static const int GROUP_HANDSHAKE   = 6;
-    static const int COMPLETED         = 7;
-    static const int IDLE              = 8;
-
-    static char *toString(int val, char *buffer, int max);
-};
-
-#endif
diff --git a/nexus/SupplicantStateChangeEvent.cpp b/nexus/SupplicantStateChangeEvent.cpp
deleted file mode 100644
index fd9233a..0000000
--- a/nexus/SupplicantStateChangeEvent.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-
-#define LOG_TAG "SupplicantStateChangeEvent"
-#include <cutils/log.h>
-
-#include "SupplicantStateChangeEvent.h"
-
-SupplicantStateChangeEvent::SupplicantStateChangeEvent(int level, char *event,
-                                                       size_t len) :
-                            SupplicantEvent(SupplicantEvent::EVENT_STATE_CHANGE,
-                                            level) {
-    // XXX: move this stuff into a static creation method
-    char *p = index(event, ' ');
-    if (!p) {
-        ALOGW("Bad event '%s'\n", event);
-        return;
-    }
-
-    mState = atoi(p + strlen("state=") + 1);
-}
-
-SupplicantStateChangeEvent::SupplicantStateChangeEvent(int state) :
-                            SupplicantEvent(SupplicantEvent::EVENT_STATE_CHANGE, -1) {
-    mState = state;
-}
-
-SupplicantStateChangeEvent::~SupplicantStateChangeEvent() {
-}
-
diff --git a/nexus/SupplicantStateChangeEvent.h b/nexus/SupplicantStateChangeEvent.h
deleted file mode 100644
index 77bff65..0000000
--- a/nexus/SupplicantStateChangeEvent.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantStateChangeEvent_H
-#define _SupplicantStateChangeEvent_H
-
-#include "SupplicantEvent.h"
-
-class SupplicantStateChangeEvent : public SupplicantEvent {
-private:
-    int mState;
-
-public:
-    SupplicantStateChangeEvent(int level, char *event, size_t len);
-    SupplicantStateChangeEvent(int state);
-    virtual ~SupplicantStateChangeEvent();
-
-    int getState() { return mState; }
-};
-
-#endif
diff --git a/nexus/SupplicantStatus.cpp b/nexus/SupplicantStatus.cpp
deleted file mode 100644
index 8f28abe..0000000
--- a/nexus/SupplicantStatus.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#define LOG_TAG "SupplicantStatus"
-#include <cutils/log.h>
-
-#include "SupplicantStatus.h"
-#include "SupplicantState.h"
-
-SupplicantStatus::SupplicantStatus() {
-    mWpaState = SupplicantState::UNKNOWN;
-    mId = -1;
-    mBssid = NULL;
-    mSsid = NULL;
-}
-
-SupplicantStatus::SupplicantStatus(int state, int id, char *bssid, char *ssid) :
-                  mWpaState(state), mId(id), mBssid(bssid), mSsid(ssid) {
-
-LOGD("state %d, id %d, bssid %p, ssid %p\n", mWpaState, mId, mBssid, mSsid);
-}
-
-SupplicantStatus::~SupplicantStatus() {
-    if (mBssid)
-        free(mBssid);
-    if (mSsid)
-        free(mSsid);
-}
-
-SupplicantStatus *SupplicantStatus::createStatus(char *data, int len) {
-    char *bssid = NULL;
-    char *ssid = NULL;
-    int id = -1;
-    int state = SupplicantState::UNKNOWN;
-
-    char *next = data;
-    char *line;
-    while((line = strsep(&next, "\n"))) {
-        char *line_next =  line;
-        char *token = strsep(&line_next, "=");
-        char *value = strsep(&line_next, "=");
-        if (!strcmp(token, "bssid"))
-            bssid = strdup(value);
-        else if (!strcmp(token, "ssid"))
-            ssid = strdup(value);
-        else if (!strcmp(token, "id"))
-            id = atoi(value);
-        else if (!strcmp(token, "wpa_state")) {
-            if (!strcmp(value, "DISCONNECTED"))
-                state = SupplicantState::DISCONNECTED;
-            else if (!strcmp(value, "INACTIVE"))
-                state = SupplicantState::INACTIVE;
-            else if (!strcmp(value, "SCANNING"))
-                state = SupplicantState::SCANNING;
-            else if (!strcmp(value, "ASSOCIATING"))
-                state = SupplicantState::ASSOCIATING;
-            else if (!strcmp(value, "ASSOCIATED"))
-                state = SupplicantState::ASSOCIATED;
-            else if (!strcmp(value, "FOURWAY_HANDSHAKE"))
-                state = SupplicantState::FOURWAY_HANDSHAKE;
-            else if (!strcmp(value, "GROUP_HANDSHAKE"))
-                state = SupplicantState::GROUP_HANDSHAKE;
-            else if (!strcmp(value, "COMPLETED"))
-                state = SupplicantState::COMPLETED;
-            else if (!strcmp(value, "IDLE"))
-                state = SupplicantState::IDLE;
-            else 
-                ALOGE("Unknown supplicant state '%s'", value);
-        } else
-            ALOGD("Ignoring unsupported status token '%s'", token);
-    }
-
-    return new SupplicantStatus(state, id, bssid, ssid);
-    
-}
diff --git a/nexus/SupplicantStatus.h b/nexus/SupplicantStatus.h
deleted file mode 100644
index ef01841..0000000
--- a/nexus/SupplicantStatus.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _SupplicantStatus_H
-#define _SupplicantStatus_H
-
-class SupplicantStatus {
-private:
-    int mWpaState;
-    int mId;
-    char *mBssid;
-    char *mSsid;
-
-private:
-    SupplicantStatus();
-    SupplicantStatus(int state, int id, char *bssid, char *ssid);
-
-public:
-    virtual ~SupplicantStatus();
-    static SupplicantStatus *createStatus(char *data, int len);
-
-    int getWpaState() { return mWpaState; }
-    int getId() { return mId; }
-    const char *getBssid() { return mBssid; }
-    const char *getSsid() { return mSsid; }
-   
-};
-
-#endif
diff --git a/nexus/TiwlanEventListener.cpp b/nexus/TiwlanEventListener.cpp
deleted file mode 100644
index fde3a44..0000000
--- a/nexus/TiwlanEventListener.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <pthread.h>
-#include <sys/types.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#define LOG_TAG "TiwlanEventListener"
-#include <cutils/log.h>
-
-#include "TiwlanEventListener.h"
-
-TiwlanEventListener::TiwlanEventListener(int socket) :
-                     SocketListener(socket, false) {
-}
-
-bool TiwlanEventListener::onDataAvailable(SocketClient *cli) {
-    struct ipc_ev_data *data;
-
-    if (!(data = (struct ipc_ev_data *) malloc(sizeof(struct ipc_ev_data)))) {
-        ALOGE("Failed to allocate packet (out of memory)");
-        return true;
-    }
-
-    if (recv(cli->getSocket(), data, sizeof(struct ipc_ev_data), 0) < 0) {
-       ALOGE("recv failed (%s)", strerror(errno));
-       goto out;
-    }
-
-    if (data->event_type == IPC_EVENT_LINK_SPEED) {
-        uint32_t *spd = (uint32_t *) data->buffer;
-        *spd /= 2;
-//        ALOGD("Link speed = %u MB/s", *spd);
-    } else if (data->event_type == IPC_EVENT_LOW_SNR) {
-        ALOGW("Low signal/noise ratio");
-    } else if (data->event_type == IPC_EVENT_LOW_RSSI) {
-        ALOGW("Low RSSI");
-    } else {
-//        ALOGD("Dropping unhandled driver event %d", data->event_type);
-    }
-
-    // TODO: Tell WifiController about the event
-out:
-    free(data);
-    return true;
-}
diff --git a/nexus/TiwlanEventListener.h b/nexus/TiwlanEventListener.h
deleted file mode 100644
index 052d6b1..0000000
--- a/nexus/TiwlanEventListener.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _TIWLAN_EVENT_LISTENER_H__
-#define _TIWLAN_EVENT_LISTENER_H__
-
-#include <sysutils/SocketListener.h>
-
-struct wpa_ctrl;
-class SocketClient;
-class ITiwlanEventHandler;
-class TiwlanEventFactory;
-
-class TiwlanEventListener: public SocketListener {
-    
-public:
-    TiwlanEventListener(int sock);
-    virtual ~TiwlanEventListener() {}
-
-protected:
-    virtual bool onDataAvailable(SocketClient *c);
-};
-
-// TODO: Move all this crap into a factory
-#define TI_DRIVER_MSG_PORT 9001
-
-#define IPC_EVENT_LINK_SPEED  2
-#define IPC_EVENT_LOW_SNR     13
-#define IPC_EVENT_LOW_RSSI    14
-
-struct ipc_ev_data {
-    uint32_t event_type;
-    void     *event_id;
-    uint32_t process_id;
-    uint32_t delivery_type;
-    uint32_t user_param;
-    void     *event_callback;
-    uint32_t bufferSize;
-    uint8_t  buffer[2048];
-};
-
-#endif
diff --git a/nexus/TiwlanWifiController.cpp b/nexus/TiwlanWifiController.cpp
deleted file mode 100644
index 76b6a2e..0000000
--- a/nexus/TiwlanWifiController.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-
-#include <cutils/properties.h>
-#define LOG_TAG "TiwlanWifiController"
-#include <cutils/log.h>
-
-#include "PropertyManager.h"
-#include "TiwlanWifiController.h"
-#include "TiwlanEventListener.h"
-
-#define DRIVER_PROP_NAME "wlan.driver.status"
-
-extern "C" int sched_yield(void);
-
-TiwlanWifiController::TiwlanWifiController(PropertyManager *propmngr,
-                                           IControllerHandler *handlers,
-                                           char *modpath, char *modname,
-                                           char *modargs) :
-                      WifiController(propmngr, handlers, modpath, modname,
-                                     modargs) {
-    mEventListener = NULL;
-    mListenerSock = -1;
-}
-
-int TiwlanWifiController::powerUp() {
-    return 0; // Powerup is currently done when the driver is loaded
-}
-
-int TiwlanWifiController::powerDown() {
-    if (mEventListener) {
-        delete mEventListener;
-        shutdown(mListenerSock, SHUT_RDWR);
-        close(mListenerSock);
-        mListenerSock = -1;
-        mEventListener = NULL;
-    }
-   
-    return 0; // Powerdown is currently done when the driver is unloaded
-}
-
-bool TiwlanWifiController::isPoweredUp() {
-    return isKernelModuleLoaded(getModuleName());
-}
-
-int TiwlanWifiController::loadFirmware() {
-    char driver_status[PROPERTY_VALUE_MAX];
-    int count = 100;
-
-    property_set("ctl.start", "wlan_loader");
-    sched_yield();
-
-    // Wait for driver to be ready
-    while (count-- > 0) {
-        if (property_get(DRIVER_PROP_NAME, driver_status, NULL)) {
-            if (!strcmp(driver_status, "ok")) {
-                ALOGD("Firmware loaded OK");
-
-                if (startDriverEventListener()) {
-                    ALOGW("Failed to start driver event listener (%s)",
-                         strerror(errno));
-                }
-
-                return 0;
-            } else if (!strcmp(DRIVER_PROP_NAME, "failed")) {
-                ALOGE("Firmware load failed");
-                return -1;
-            }
-        }
-        usleep(200000);
-    }
-    property_set(DRIVER_PROP_NAME, "timeout");
-    ALOGE("Firmware load timed out");
-    return -1;
-}
-
-int TiwlanWifiController::startDriverEventListener() {
-    struct sockaddr_in addr;
-
-    if (mListenerSock != -1) {
-        ALOGE("Listener already started!");
-        errno = EBUSY;
-        return -1;
-    }
-
-    if ((mListenerSock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
-        ALOGE("socket failed (%s)", strerror(errno));
-        return -1;
-    }
-
-    memset(&addr, 0, sizeof(addr));
-    addr.sin_family = AF_INET;
-    addr.sin_addr.s_addr = htonl(INADDR_ANY);
-    addr.sin_port = htons(TI_DRIVER_MSG_PORT);
-
-    if (bind(mListenerSock,
-             (struct sockaddr *) &addr,
-             sizeof(addr)) < 0) {
-        ALOGE("bind failed (%s)", strerror(errno));
-        goto out_err;
-    }
-
-    mEventListener = new TiwlanEventListener(mListenerSock);
-
-    if (mEventListener->startListener()) {
-        ALOGE("Error starting driver listener (%s)", strerror(errno));
-        goto out_err;
-    }
-    return 0;
-out_err:
-    if (mEventListener) {
-        delete mEventListener;
-        mEventListener = NULL;
-    }
-    if (mListenerSock != -1) {
-        shutdown(mListenerSock, SHUT_RDWR);
-        close(mListenerSock);
-        mListenerSock = -1;
-    }
-    return -1;
-}
-
-bool TiwlanWifiController::isFirmwareLoaded() {
-    // Always load the firmware
-    return false;
-}
diff --git a/nexus/TiwlanWifiController.h b/nexus/TiwlanWifiController.h
deleted file mode 100644
index 583be71..0000000
--- a/nexus/TiwlanWifiController.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _TIWLAN_WIFI_CONTROLLER_H
-#define _TIWLAN_WIFI_CONTROLLER_H
-
-#include "PropertyManager.h"
-#include "WifiController.h"
-
-class IControllerHandler;
-class TiwlanEventListener;
-
-class TiwlanWifiController : public WifiController {
-    int                 mListenerSock;
-    TiwlanEventListener *mEventListener;
-
-public:
-    TiwlanWifiController(PropertyManager *propmngr, IControllerHandler *handlers, char *modpath, char *modname, char *modargs);
-    virtual ~TiwlanWifiController() {}
-
-    virtual int powerUp();
-    virtual int powerDown();
-    virtual bool isPoweredUp();
-    virtual int loadFirmware();
-    virtual bool isFirmwareLoaded();
-
-private:
-    int startDriverEventListener();
-};
-#endif
diff --git a/nexus/VpnController.cpp b/nexus/VpnController.cpp
deleted file mode 100644
index 015710f..0000000
--- a/nexus/VpnController.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include "PropertyManager.h"
-#include "VpnController.h"
-
-VpnController::VpnController(PropertyManager *propmngr,
-                             IControllerHandler *handlers) :
-               Controller("vpn", propmngr, handlers) {
-    mEnabled = false;
-
-    mStaticProperties.propEnabled = new VpnEnabledProperty(this);
-    mDynamicProperties.propGateway = new IPV4AddressPropertyHelper("Gateway",
-                                                                   false,
-                                                                   &mGateway);
-}
-
-int VpnController::start() {
-    mPropMngr->attachProperty("vpn", mStaticProperties.propEnabled);
-    return 0;
-}
-
-int VpnController::stop() {
-    mPropMngr->detachProperty("vpn", mStaticProperties.propEnabled);
-    return 0;
-}
-
-VpnController::VpnIntegerProperty::VpnIntegerProperty(VpnController *c,
-                                                      const char *name,
-                                                      bool ro,
-                                                      int elements) :
-                IntegerProperty(name, ro, elements) {
-    mVc = c;
-}
-
-VpnController::VpnStringProperty::VpnStringProperty(VpnController *c,
-                                                    const char *name,
-                                                    bool ro, int elements) :
-                StringProperty(name, ro, elements) {
-    mVc = c;
-}
-
-VpnController::VpnIPV4AddressProperty::VpnIPV4AddressProperty(VpnController *c,
-                                                              const char *name,
-                                                              bool ro, int elements) :
-                IPV4AddressProperty(name, ro, elements) {
-    mVc = c;
-}
-
-VpnController::VpnEnabledProperty::VpnEnabledProperty(VpnController *c) :
-                VpnIntegerProperty(c, "Enabled", false, 1) {
-}
-int VpnController::VpnEnabledProperty::get(int idx, int *buffer) {
-    *buffer = mVc->mEnabled;
-    return 0;
-}
-int VpnController::VpnEnabledProperty::set(int idx, int value) {
-    int rc;
-    if (!value) {
-        mVc->mPropMngr->detachProperty("vpn", mVc->mDynamicProperties.propGateway);
-        rc = mVc->disable();
-    } else {
-        rc = mVc->enable();
-        if (!rc) {
-            mVc->mPropMngr->attachProperty("vpn", mVc->mDynamicProperties.propGateway);
-        }
-    }
-    if (!rc)
-        mVc->mEnabled = value;
-    return rc;
-}
diff --git a/nexus/VpnController.h b/nexus/VpnController.h
deleted file mode 100644
index 4bd86b5..0000000
--- a/nexus/VpnController.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _VPN_CONTROLLER_H
-#define _VPN_CONTROLLER_H
-
-#include <netinet/in.h>
-
-#include "Controller.h"
-
-class IControllerHandler;
-
-class VpnController : public Controller {
-    class VpnIntegerProperty : public IntegerProperty {
-    protected:
-        VpnController *mVc;
-    public:
-        VpnIntegerProperty(VpnController *c, const char *name, bool ro,
-                            int elements);
-        virtual ~VpnIntegerProperty() {}
-        virtual int set(int idx, int value) = 0;
-        virtual int get(int idx, int *buffer) = 0;
-    };
-    friend class VpnController::VpnIntegerProperty;
-
-    class VpnStringProperty : public StringProperty {
-    protected:
-        VpnController *mVc;
-    public:
-        VpnStringProperty(VpnController *c, const char *name, bool ro,
-                            int elements);
-        virtual ~VpnStringProperty() {}
-        virtual int set(int idx, const char *value) = 0;
-        virtual int get(int idx, char *buffer, size_t max) = 0;
-    };
-    friend class VpnController::VpnStringProperty;
-
-    class VpnIPV4AddressProperty : public IPV4AddressProperty {
-    protected:
-        VpnController *mVc;
-    public:
-        VpnIPV4AddressProperty(VpnController *c, const char *name, bool ro,
-                          int elements);
-        virtual ~VpnIPV4AddressProperty() {}
-        virtual int set(int idx, struct in_addr *value) = 0;
-        virtual int get(int idx, struct in_addr *buffer) = 0;
-    };
-    friend class VpnController::VpnIPV4AddressProperty;
-
-    class VpnEnabledProperty : public VpnIntegerProperty {
-    public:
-        VpnEnabledProperty(VpnController *c);
-        virtual ~VpnEnabledProperty() {};
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    bool           mEnabled;
-    /*
-     * Gateway of the VPN server to connect to
-     */
-    struct in_addr mGateway;
-
-    struct {
-        VpnEnabledProperty *propEnabled;
-    } mStaticProperties;
-
-    struct {
-        IPV4AddressPropertyHelper *propGateway;
-    } mDynamicProperties;
-
-public:
-    VpnController(PropertyManager *propmngr, IControllerHandler *handlers);
-    virtual ~VpnController() {}
-
-    virtual int start();
-    virtual int stop();
-
-protected:
-    virtual int enable() = 0;
-    virtual int disable() = 0;
-};
-
-#endif
diff --git a/nexus/WifiController.cpp b/nexus/WifiController.cpp
deleted file mode 100644
index cedd013..0000000
--- a/nexus/WifiController.cpp
+++ /dev/null
@@ -1,819 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#define LOG_TAG "WifiController"
-#include <cutils/log.h>
-
-#include "Supplicant.h"
-#include "WifiController.h"
-#include "NetworkManager.h"
-#include "ResponseCode.h"
-#include "WifiNetwork.h"
-#include "ISupplicantEventHandler.h"
-#include "SupplicantState.h"
-#include "SupplicantStatus.h"
-#include "SupplicantAssociatingEvent.h"
-#include "SupplicantAssociatedEvent.h"
-#include "SupplicantConnectedEvent.h"
-#include "SupplicantScanResultsEvent.h"
-#include "SupplicantStateChangeEvent.h"
-#include "SupplicantConnectionTimeoutEvent.h"
-#include "SupplicantDisconnectedEvent.h"
-#include "WifiStatusPoller.h"
-
-WifiController::WifiController(PropertyManager *mPropMngr,
-                               IControllerHandler *handlers,
-                               char *modpath, char *modname, char *modargs) :
-                Controller("wifi", mPropMngr, handlers) {
-    strncpy(mModulePath, modpath, sizeof(mModulePath));
-    strncpy(mModuleName, modname, sizeof(mModuleName));
-    strncpy(mModuleArgs, modargs, sizeof(mModuleArgs));
-
-    mLatestScanResults = new ScanResultCollection();
-    pthread_mutex_init(&mLatestScanResultsLock, NULL);
-
-    pthread_mutex_init(&mLock, NULL);
-
-    mSupplicant = new Supplicant(this, this);
-    mActiveScan = false;
-    mEnabled = false;
-    mScanOnly = false;
-    mPacketFilter = false;
-    mBluetoothCoexScan = false;
-    mBluetoothCoexMode = 0;
-    mCurrentlyConnectedNetworkId = -1;
-    mStatusPoller = new WifiStatusPoller(this);
-    mRssiEventThreshold = 5;
-    mLastLinkSpeed = 0;
-
-    mSupplicantState = SupplicantState::UNKNOWN;
-
-    mStaticProperties.propEnabled = new WifiEnabledProperty(this);
-    mStaticProperties.propScanOnly = new WifiScanOnlyProperty(this);
-    mStaticProperties.propAllowedChannels = new WifiAllowedChannelsProperty(this);
-
-    mStaticProperties.propRssiEventThreshold =
-            new IntegerPropertyHelper("RssiEventThreshold", false, &mRssiEventThreshold);
-
-    mDynamicProperties.propSupplicantState = new WifiSupplicantStateProperty(this);
-    mDynamicProperties.propActiveScan = new WifiActiveScanProperty(this);
-    mDynamicProperties.propInterface = new WifiInterfaceProperty(this);
-    mDynamicProperties.propSearching = new WifiSearchingProperty(this);
-    mDynamicProperties.propPacketFilter = new WifiPacketFilterProperty(this);
-    mDynamicProperties.propBluetoothCoexScan = new WifiBluetoothCoexScanProperty(this);
-    mDynamicProperties.propBluetoothCoexMode = new WifiBluetoothCoexModeProperty(this);
-    mDynamicProperties.propCurrentNetwork = new WifiCurrentNetworkProperty(this);
-
-    mDynamicProperties.propRssi = new IntegerPropertyHelper("Rssi", true, &mLastRssi);
-    mDynamicProperties.propLinkSpeed = new IntegerPropertyHelper("LinkSpeed", true, &mLastLinkSpeed);
-
-    mDynamicProperties.propSuspended = new WifiSuspendedProperty(this);
-    mDynamicProperties.propNetCount = new WifiNetCountProperty(this);
-    mDynamicProperties.propTriggerScan = new WifiTriggerScanProperty(this);
-}
-
-int WifiController::start() {
-    mPropMngr->attachProperty("wifi", mStaticProperties.propEnabled);
-    mPropMngr->attachProperty("wifi", mStaticProperties.propScanOnly);
-    mPropMngr->attachProperty("wifi", mStaticProperties.propAllowedChannels);
-    mPropMngr->attachProperty("wifi", mStaticProperties.propRssiEventThreshold);
-    return 0;
-}
-
-int WifiController::stop() {
-    mPropMngr->detachProperty("wifi", mStaticProperties.propEnabled);
-    mPropMngr->detachProperty("wifi", mStaticProperties.propScanOnly);
-    mPropMngr->detachProperty("wifi", mStaticProperties.propAllowedChannels);
-    mPropMngr->detachProperty("wifi", mStaticProperties.propRssiEventThreshold);
-    return 0;
-}
-
-int WifiController::enable() {
-
-    if (!isPoweredUp()) {
-        ALOGI("Powering up");
-        sendStatusBroadcast("Powering up WiFi hardware");
-        if (powerUp()) {
-            ALOGE("Powerup failed (%s)", strerror(errno));
-            return -1;
-        }
-    }
-
-    if (mModuleName[0] != '\0' && !isKernelModuleLoaded(mModuleName)) {
-        ALOGI("Loading driver");
-        sendStatusBroadcast("Loading WiFi driver");
-        if (loadKernelModule(mModulePath, mModuleArgs)) {
-            ALOGE("Kernel module load failed (%s)", strerror(errno));
-            goto out_powerdown;
-        }
-    }
-
-    if (!isFirmwareLoaded()) {
-        ALOGI("Loading firmware");
-        sendStatusBroadcast("Loading WiFI firmware");
-        if (loadFirmware()) {
-            ALOGE("Firmware load failed (%s)", strerror(errno));
-            goto out_powerdown;
-        }
-    }
-
-    if (!mSupplicant->isStarted()) {
-        ALOGI("Starting WPA Supplicant");
-        sendStatusBroadcast("Starting WPA Supplicant");
-        if (mSupplicant->start()) {
-            ALOGE("Supplicant start failed (%s)", strerror(errno));
-            goto out_unloadmodule;
-        }
-    }
-
-    if (Controller::bindInterface(mSupplicant->getInterfaceName())) {
-        ALOGE("Error binding interface (%s)", strerror(errno));
-        goto out_unloadmodule;
-    }
-
-    if (mSupplicant->refreshNetworkList())
-        ALOGW("Error getting list of networks (%s)", strerror(errno));
-
-    ALOGW("TODO: Set # of allowed regulatory channels!");
-
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propSupplicantState);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propActiveScan);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propInterface);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propSearching);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propPacketFilter);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propBluetoothCoexScan);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propBluetoothCoexMode);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propCurrentNetwork);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propRssi);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propLinkSpeed);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propSuspended);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propNetCount);
-    mPropMngr->attachProperty("wifi", mDynamicProperties.propTriggerScan);
-
-    ALOGI("Enabled successfully");
-    return 0;
-
-out_unloadmodule:
-    if (mModuleName[0] != '\0' && !isKernelModuleLoaded(mModuleName)) {
-        if (unloadKernelModule(mModuleName)) {
-            ALOGE("Unable to unload module after failure!");
-        }
-    }
-
-out_powerdown:
-    if (powerDown()) {
-        ALOGE("Unable to powerdown after failure!");
-    }
-    return -1;
-}
-
-bool WifiController::getSuspended() {
-    pthread_mutex_lock(&mLock);
-    bool r = mSuspended;
-    pthread_mutex_unlock(&mLock);
-    return r;
-}
-
-int WifiController::setSuspend(bool suspend) {
-
-    pthread_mutex_lock(&mLock);
-    if (suspend == mSuspended) {
-        ALOGW("Suspended state already = %d", suspend);
-        pthread_mutex_unlock(&mLock);
-        return 0;
-    }
-
-    if (suspend) {
-        mHandlers->onControllerSuspending(this);
-
-        char tmp[80];
-        ALOGD("Suspending from supplicant state %s",
-             SupplicantState::toString(mSupplicantState,
-                                       tmp,
-                                       sizeof(tmp)));
-
-        if (mSupplicantState != SupplicantState::IDLE) {
-            ALOGD("Forcing Supplicant disconnect");
-            if (mSupplicant->disconnect()) {
-                ALOGW("Error disconnecting (%s)", strerror(errno));
-            }
-        }
-
-        ALOGD("Stopping Supplicant driver");
-        if (mSupplicant->stopDriver()) {
-            ALOGE("Error stopping driver (%s)", strerror(errno));
-            pthread_mutex_unlock(&mLock);
-            return -1;
-        }
-    } else {
-        ALOGD("Resuming");
-
-        if (mSupplicant->startDriver()) {
-            ALOGE("Error resuming driver (%s)", strerror(errno));
-            pthread_mutex_unlock(&mLock);
-            return -1;
-        }
-        // XXX: set regulatory max channels 
-        if (mScanOnly)
-            mSupplicant->triggerScan();
-        else
-            mSupplicant->reconnect();
-
-        mHandlers->onControllerResumed(this);
-    }
-
-    mSuspended = suspend;
-    pthread_mutex_unlock(&mLock);
-    ALOGD("Suspend / Resume completed");
-    return 0;
-}
-
-void WifiController::sendStatusBroadcast(const char *msg) {
-    NetworkManager::Instance()->
-                    getBroadcaster()->
-                    sendBroadcast(ResponseCode::UnsolicitedInformational, msg, false);
-}
-
-int WifiController::disable() {
-
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propSupplicantState);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propActiveScan);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propInterface);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propSearching);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propPacketFilter);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propBluetoothCoexScan);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propBluetoothCoexMode);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propCurrentNetwork);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propRssi);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propLinkSpeed);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propSuspended);
-    mPropMngr->detachProperty("wifi", mDynamicProperties.propNetCount);
-
-    if (mSupplicant->isStarted()) {
-        sendStatusBroadcast("Stopping WPA Supplicant");
-        if (mSupplicant->stop()) {
-            ALOGE("Supplicant stop failed (%s)", strerror(errno));
-            return -1;
-        }
-    } else
-        ALOGW("disable(): Supplicant not running?");
-
-    if (mModuleName[0] != '\0' && isKernelModuleLoaded(mModuleName)) {
-        sendStatusBroadcast("Unloading WiFi driver");
-        if (unloadKernelModule(mModuleName)) {
-            ALOGE("Unable to unload module (%s)", strerror(errno));
-            return -1;
-        }
-    }
-
-    if (isPoweredUp()) {
-        sendStatusBroadcast("Powering down WiFi hardware");
-        if (powerDown()) {
-            ALOGE("Powerdown failed (%s)", strerror(errno));
-            return -1;
-        }
-    }
-    return 0;
-}
-
-int WifiController::loadFirmware() {
-    return 0;
-}
-
-int WifiController::triggerScan() {
-    pthread_mutex_lock(&mLock);
-    if (verifyNotSuspended()) {
-        pthread_mutex_unlock(&mLock);
-        return -1;
-    }
-
-    switch (mSupplicantState) {
-        case SupplicantState::DISCONNECTED:
-        case SupplicantState::INACTIVE:
-        case SupplicantState::SCANNING:
-        case SupplicantState::IDLE:
-            break;
-        default:
-            // Switch to scan only mode
-            mSupplicant->setApScanMode(2);
-            break;
-    }
-
-    int rc = mSupplicant->triggerScan();
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-int WifiController::setActiveScan(bool active) {
-    pthread_mutex_lock(&mLock);
-    if (mActiveScan == active) {
-        pthread_mutex_unlock(&mLock);
-        return 0;
-    }
-    mActiveScan = active;
-
-    int rc = mSupplicant->setScanMode(active);
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-WifiNetwork *WifiController::createNetwork() {
-    pthread_mutex_lock(&mLock);
-    WifiNetwork *wn = mSupplicant->createNetwork();
-    pthread_mutex_unlock(&mLock);
-    return wn;
-}
-
-int WifiController::removeNetwork(int networkId) {
-    pthread_mutex_lock(&mLock);
-    WifiNetwork *wn = mSupplicant->lookupNetwork(networkId);
-
-    if (!wn) {
-        pthread_mutex_unlock(&mLock);
-        return -1;
-    }
-    int rc = mSupplicant->removeNetwork(wn);
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-ScanResultCollection *WifiController::createScanResults() {
-    ScanResultCollection *d = new ScanResultCollection();
-    ScanResultCollection::iterator i;
-
-    pthread_mutex_lock(&mLatestScanResultsLock);
-    for (i = mLatestScanResults->begin(); i != mLatestScanResults->end(); ++i)
-        d->push_back((*i)->clone());
-
-    pthread_mutex_unlock(&mLatestScanResultsLock);
-    return d;
-}
-
-WifiNetworkCollection *WifiController::createNetworkList() {
-    return mSupplicant->createNetworkList();
-}
-
-int WifiController::setPacketFilter(bool enable) {
-    int rc;
-
-    pthread_mutex_lock(&mLock);
-    if (enable)
-        rc = mSupplicant->enablePacketFilter();
-    else
-        rc = mSupplicant->disablePacketFilter();
-
-    if (!rc)
-        mPacketFilter = enable;
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-int WifiController::setBluetoothCoexistenceScan(bool enable) {
-    int rc;
-
-    pthread_mutex_lock(&mLock);
-
-    if (enable)
-        rc = mSupplicant->enableBluetoothCoexistenceScan();
-    else
-        rc = mSupplicant->disableBluetoothCoexistenceScan();
-
-    if (!rc)
-        mBluetoothCoexScan = enable;
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-int WifiController::setScanOnly(bool scanOnly) {
-    pthread_mutex_lock(&mLock);
-    int rc = mSupplicant->setApScanMode((scanOnly ? 2 : 1));
-    if (!rc)
-        mScanOnly = scanOnly;
-    if (!mSuspended) {
-        if (scanOnly)
-            mSupplicant->disconnect();
-        else
-            mSupplicant->reconnect();
-    }
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-int WifiController::setBluetoothCoexistenceMode(int mode) {
-    pthread_mutex_lock(&mLock);
-    int rc = mSupplicant->setBluetoothCoexistenceMode(mode);
-    if (!rc)
-        mBluetoothCoexMode = mode;
-    pthread_mutex_unlock(&mLock);
-    return rc;
-}
-
-void WifiController::onAssociatingEvent(SupplicantAssociatingEvent *evt) {
-    ALOGD("onAssociatingEvent(%s, %s, %d)",
-         (evt->getBssid() ? evt->getBssid() : "n/a"),
-         (evt->getSsid() ? evt->getSsid() : "n/a"),
-         evt->getFreq());
-}
-
-void WifiController::onAssociatedEvent(SupplicantAssociatedEvent *evt) {
-    ALOGD("onAssociatedEvent(%s)", evt->getBssid());
-}
-
-void WifiController::onConnectedEvent(SupplicantConnectedEvent *evt) {
-    ALOGD("onConnectedEvent(%s, %d)", evt->getBssid(), evt->getReassociated());
-    SupplicantStatus *ss = mSupplicant->getStatus();
-    WifiNetwork *wn;
-
-    if (ss->getWpaState() != SupplicantState::COMPLETED) {
-        char tmp[32];
-
-        ALOGW("onConnected() with SupplicantState = %s!",
-             SupplicantState::toString(ss->getWpaState(), tmp,
-             sizeof(tmp)));
-        return;
-    }
-
-    if (ss->getId() == -1) {
-        ALOGW("onConnected() with id = -1!");
-        return;
-    }
-    
-    mCurrentlyConnectedNetworkId = ss->getId();
-    if (!(wn = mSupplicant->lookupNetwork(ss->getId()))) {
-        ALOGW("Error looking up connected network id %d (%s)",
-             ss->getId(), strerror(errno));
-        return;
-    }
-  
-    delete ss;
-    mHandlers->onInterfaceConnected(this);
-}
-
-void WifiController::onScanResultsEvent(SupplicantScanResultsEvent *evt) {
-    char *reply;
-
-    if (!(reply = (char *) malloc(4096))) {
-        ALOGE("Out of memory");
-        return;
-    }
-
-    mNumScanResultsSinceLastStateChange++;
-    if (mNumScanResultsSinceLastStateChange >= 3)
-        mIsSupplicantSearching = false;
-
-    size_t len = 4096;
-
-    if (mSupplicant->sendCommand("SCAN_RESULTS", reply, &len)) {
-        ALOGW("onScanResultsEvent: Error getting scan results (%s)",
-             strerror(errno));
-        free(reply);
-        return;
-    }
-
-    pthread_mutex_lock(&mLatestScanResultsLock);
-    if (!mLatestScanResults->empty()) {
-        ScanResultCollection::iterator i;
-
-        for (i = mLatestScanResults->begin();
-             i !=mLatestScanResults->end(); ++i) {
-            delete *i;
-        }
-        mLatestScanResults->clear();
-    }
-
-    char *linep;
-    char *linep_next = NULL;
-
-    if (!strtok_r(reply, "\n", &linep_next)) {
-        free(reply);
-        pthread_mutex_unlock(&mLatestScanResultsLock);
-        return;
-    }
-
-    while((linep = strtok_r(NULL, "\n", &linep_next)))
-        mLatestScanResults->push_back(new ScanResult(linep));
-
-    // Switch handling of scan results back to normal mode
-    mSupplicant->setApScanMode(1);
-
-    char *tmp;
-    asprintf(&tmp, "Scan results ready (%d)", mLatestScanResults->size());
-    NetworkManager::Instance()->getBroadcaster()->
-                                sendBroadcast(ResponseCode::ScanResultsReady,
-                                              tmp, false);
-    free(tmp);
-    pthread_mutex_unlock(&mLatestScanResultsLock);
-    free(reply);
-}
-
-void WifiController::onStateChangeEvent(SupplicantStateChangeEvent *evt) {
-    char tmp[32];
-    char tmp2[32];
-    
-    if (evt->getState() == mSupplicantState)
-        return;
-
-    ALOGD("onStateChangeEvent(%s -> %s)",
-         SupplicantState::toString(mSupplicantState, tmp, sizeof(tmp)),
-         SupplicantState::toString(evt->getState(), tmp2, sizeof(tmp2)));
-
-    if (evt->getState() != SupplicantState::SCANNING) {
-        mIsSupplicantSearching = true;
-        mNumScanResultsSinceLastStateChange = 0;
-    }
-
-    char *tmp3;
-    asprintf(&tmp3,
-             "Supplicant state changed from %d (%s) -> %d (%s)",
-             mSupplicantState, tmp, evt->getState(), tmp2);
-
-    mSupplicantState = evt->getState();
-
-    if (mSupplicantState == SupplicantState::COMPLETED) {
-        mStatusPoller->start();
-    } else if (mStatusPoller->isStarted()) {
-        mStatusPoller->stop();
-    }
-
-    NetworkManager::Instance()->getBroadcaster()->
-                                sendBroadcast(ResponseCode::SupplicantStateChange,
-                                              tmp3, false);
-    free(tmp3);
-}
-
-void WifiController::onConnectionTimeoutEvent(SupplicantConnectionTimeoutEvent *evt) {
-    ALOGD("onConnectionTimeoutEvent(%s)", evt->getBssid());
-}
-
-void WifiController::onDisconnectedEvent(SupplicantDisconnectedEvent *evt) {
-    mCurrentlyConnectedNetworkId = -1;
-    mHandlers->onInterfaceDisconnected(this);
-}
-
-#if 0
-void WifiController::onTerminatingEvent(SupplicantEvent *evt) {
-    ALOGD("onTerminatingEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onPasswordChangedEvent(SupplicantEvent *evt) {
-    ALOGD("onPasswordChangedEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onEapNotificationEvent(SupplicantEvent *evt) {
-    ALOGD("onEapNotificationEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onEapStartedEvent(SupplicantEvent *evt) {
-    ALOGD("onEapStartedEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onEapMethodEvent(SupplicantEvent *evt) {
-    ALOGD("onEapMethodEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onEapSuccessEvent(SupplicantEvent *evt) {
-    ALOGD("onEapSuccessEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onEapFailureEvent(SupplicantEvent *evt) {
-    ALOGD("onEapFailureEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onLinkSpeedEvent(SupplicantEvent *evt) {
-    ALOGD("onLinkSpeedEvent(%s)", evt->getEvent());
-}
-
-void WifiController::onDriverStateEvent(SupplicantEvent *evt) {
-    ALOGD("onDriverStateEvent(%s)", evt->getEvent());
-}
-#endif
-
-void WifiController::onStatusPollInterval() {
-    pthread_mutex_lock(&mLock);
-    int rssi;
-    if (mSupplicant->getRssi(&rssi)) {
-        ALOGE("Failed to get rssi (%s)", strerror(errno));
-        pthread_mutex_unlock(&mLock);
-        return;
-    }
-
-    if (abs(mLastRssi - rssi) > mRssiEventThreshold) {
-        char *tmp3;
-        asprintf(&tmp3, "RSSI changed from %d -> %d",
-                 mLastRssi, rssi);
-        mLastRssi = rssi;
-        NetworkManager::Instance()->getBroadcaster()->
-                               sendBroadcast(ResponseCode::RssiChange,
-                                             tmp3, false);
-        free(tmp3);
-    }
-
-    int linkspeed = mSupplicant->getLinkSpeed();
-    if (linkspeed != mLastLinkSpeed) {
-        char *tmp3;
-        asprintf(&tmp3, "Link speed changed from %d -> %d",
-                 mLastLinkSpeed, linkspeed);
-        mLastLinkSpeed = linkspeed;
-        NetworkManager::Instance()->getBroadcaster()->
-                               sendBroadcast(ResponseCode::LinkSpeedChange,
-                                             tmp3, false);
-        free(tmp3);
-        
-    }
-    pthread_mutex_unlock(&mLock);
-}
-
-int WifiController::verifyNotSuspended() {
-    if (mSuspended) {
-        errno = ESHUTDOWN;
-        return -1;
-    }
-    return 0;
-}
-
-/*
- * Property inner classes
- */
-
-WifiController::WifiIntegerProperty::WifiIntegerProperty(WifiController *c, 
-                                                         const char *name,
-                                                         bool ro,
-                                                         int elements) :
-                IntegerProperty(name, ro, elements) {
-    mWc = c;
-}
-
-WifiController::WifiStringProperty::WifiStringProperty(WifiController *c, 
-                                                       const char *name,
-                                                       bool ro, int elements) :
-                StringProperty(name, ro, elements) {
-    mWc = c;
-}
-
-WifiController::WifiEnabledProperty::WifiEnabledProperty(WifiController *c) :
-                WifiIntegerProperty(c, "Enabled", false, 1) {
-}
-
-int WifiController::WifiEnabledProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mEnabled;
-    return 0;
-}
-int WifiController::WifiEnabledProperty::set(int idx, int value) {
-    int rc = (value ? mWc->enable() : mWc->disable());
-    if (!rc)
-        mWc->mEnabled = value;
-    return rc;
-}
-
-WifiController::WifiScanOnlyProperty::WifiScanOnlyProperty(WifiController *c) :
-                WifiIntegerProperty(c, "ScanOnly", false, 1) {
-}
-int WifiController::WifiScanOnlyProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mScanOnly;
-    return 0;
-}
-int WifiController::WifiScanOnlyProperty::set(int idx, int value) {
-    return mWc->setScanOnly(value == 1);
-}
-
-WifiController::WifiAllowedChannelsProperty::WifiAllowedChannelsProperty(WifiController *c) :
-                WifiIntegerProperty(c, "AllowedChannels", false, 1) {
-}
-int WifiController::WifiAllowedChannelsProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mNumAllowedChannels;
-    return 0;
-}
-int WifiController::WifiAllowedChannelsProperty::set(int idx, int value) {
-    // XXX: IMPL
-    errno = ENOSYS;
-    return -1;
-}
-
-WifiController::WifiSupplicantStateProperty::WifiSupplicantStateProperty(WifiController *c) :
-                WifiStringProperty(c, "SupplicantState", true, 1) {
-}
-int WifiController::WifiSupplicantStateProperty::get(int idx, char *buffer, size_t max) {
-    if (!SupplicantState::toString(mWc->mSupplicantState, buffer, max))
-        return -1;
-    return 0;
-}
-
-WifiController::WifiActiveScanProperty::WifiActiveScanProperty(WifiController *c) :
-                WifiIntegerProperty(c, "ActiveScan", false, 1) {
-}
-int WifiController::WifiActiveScanProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mActiveScan;
-    return 0;
-}
-int WifiController::WifiActiveScanProperty::set(int idx, int value) {
-    return mWc->setActiveScan(value);
-}
-
-WifiController::WifiInterfaceProperty::WifiInterfaceProperty(WifiController *c) :
-                WifiStringProperty(c, "Interface", true, 1) {
-}
-int WifiController::WifiInterfaceProperty::get(int idx, char *buffer, size_t max) {
-    strncpy(buffer, (mWc->getBoundInterface() ? mWc->getBoundInterface() : "none"), max);
-    return 0;
-}
-
-WifiController::WifiSearchingProperty::WifiSearchingProperty(WifiController *c) :
-                WifiIntegerProperty(c, "Searching", true, 1) {
-}
-int WifiController::WifiSearchingProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mIsSupplicantSearching;
-    return 0;
-}
-
-WifiController::WifiPacketFilterProperty::WifiPacketFilterProperty(WifiController *c) :
-                WifiIntegerProperty(c, "PacketFilter", false, 1) {
-}
-int WifiController::WifiPacketFilterProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mPacketFilter;
-    return 0;
-}
-int WifiController::WifiPacketFilterProperty::set(int idx, int value) {
-    return mWc->setPacketFilter(value);
-}
-
-WifiController::WifiBluetoothCoexScanProperty::WifiBluetoothCoexScanProperty(WifiController *c) :
-                WifiIntegerProperty(c, "BluetoothCoexScan", false, 1) {
-}
-int WifiController::WifiBluetoothCoexScanProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mBluetoothCoexScan;
-    return 0;
-}
-int WifiController::WifiBluetoothCoexScanProperty::set(int idx, int value) {
-    return mWc->setBluetoothCoexistenceScan(value == 1);
-}
-
-WifiController::WifiBluetoothCoexModeProperty::WifiBluetoothCoexModeProperty(WifiController *c) :
-                WifiIntegerProperty(c, "BluetoothCoexMode", false, 1) {
-}
-int WifiController::WifiBluetoothCoexModeProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mBluetoothCoexMode;
-    return 0;
-}
-int WifiController::WifiBluetoothCoexModeProperty::set(int idx, int value) {
-    return mWc->setBluetoothCoexistenceMode(value);
-}
-
-WifiController::WifiCurrentNetworkProperty::WifiCurrentNetworkProperty(WifiController *c) :
-                WifiIntegerProperty(c, "CurrentlyConnectedNetworkId", true, 1) {
-}
-int WifiController::WifiCurrentNetworkProperty::get(int idx, int *buffer) {
-    *buffer = mWc->mCurrentlyConnectedNetworkId;
-    return 0;
-}
-
-WifiController::WifiSuspendedProperty::WifiSuspendedProperty(WifiController *c) :
-                WifiIntegerProperty(c, "Suspended", false, 1) {
-}
-int WifiController::WifiSuspendedProperty::get(int idx, int *buffer) {
-    *buffer = mWc->getSuspended();
-    return 0;
-}
-int WifiController::WifiSuspendedProperty::set(int idx, int value) {
-    return mWc->setSuspend(value == 1);
-}
-
-WifiController::WifiNetCountProperty::WifiNetCountProperty(WifiController *c) :
-                WifiIntegerProperty(c, "NetCount", true, 1) {
-}
-int WifiController::WifiNetCountProperty::get(int idx, int *buffer) {
-    pthread_mutex_lock(&mWc->mLock);
-    *buffer = mWc->mSupplicant->getNetworkCount();
-    pthread_mutex_unlock(&mWc->mLock);
-    return 0;
-}
-
-WifiController::WifiTriggerScanProperty::WifiTriggerScanProperty(WifiController *c) :
-                WifiIntegerProperty(c, "TriggerScan", false, 1) {
-}
-int WifiController::WifiTriggerScanProperty::get(int idx, int *buffer) {
-    // XXX: Need action type
-    *buffer = 0;
-    return 0;
-}
-
-int WifiController::WifiTriggerScanProperty::set(int idx, int value) {
-    return mWc->triggerScan();
-}
-
diff --git a/nexus/WifiController.h b/nexus/WifiController.h
deleted file mode 100644
index b1524f6..0000000
--- a/nexus/WifiController.h
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WIFI_CONTROLLER_H
-#define _WIFI_CONTROLLER_H
-
-#include <sys/types.h>
-
-#include "Controller.h"
-#include "ScanResult.h"
-#include "WifiNetwork.h"
-#include "ISupplicantEventHandler.h"
-#include "IWifiStatusPollerHandler.h"
-
-class NetInterface;
-class Supplicant;
-class SupplicantAssociatingEvent;
-class SupplicantAssociatedEvent;
-class SupplicantConnectedEvent;
-class SupplicantScanResultsEvent;
-class SupplicantStateChangeEvent;
-class SupplicantDisconnectedEvent;
-class WifiStatusPoller;
-
-class WifiController : public Controller,
-                       public ISupplicantEventHandler,
-                       public IWifiStatusPollerHandler {
-
-    class WifiIntegerProperty : public IntegerProperty {
-    protected:
-        WifiController *mWc;
-    public:
-        WifiIntegerProperty(WifiController *c, const char *name, bool ro, 
-                            int elements);
-        virtual ~WifiIntegerProperty() {}
-        virtual int set(int idx, int value) = 0;
-        virtual int get(int idx, int *buffer) = 0;
-    };
-    friend class WifiController::WifiIntegerProperty;
-
-    class WifiStringProperty : public StringProperty {
-    protected:
-        WifiController *mWc;
-    public:
-        WifiStringProperty(WifiController *c, const char *name, bool ro, 
-                            int elements);
-        virtual ~WifiStringProperty() {}
-        virtual int set(int idx, const char *value) = 0;
-        virtual int get(int idx, char *buffer, size_t max) = 0;
-    };
-    friend class WifiController::WifiStringProperty;
-
-    class WifiEnabledProperty : public WifiIntegerProperty {
-    public:
-        WifiEnabledProperty(WifiController *c);
-        virtual ~WifiEnabledProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiScanOnlyProperty : public WifiIntegerProperty {
-    public:
-        WifiScanOnlyProperty(WifiController *c);
-        virtual ~WifiScanOnlyProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiAllowedChannelsProperty : public WifiIntegerProperty {
-    public:
-        WifiAllowedChannelsProperty(WifiController *c);
-        virtual ~WifiAllowedChannelsProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiActiveScanProperty : public WifiIntegerProperty {
-    public:
-        WifiActiveScanProperty(WifiController *c);
-        virtual ~WifiActiveScanProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiSearchingProperty : public WifiIntegerProperty {
-    public:
-        WifiSearchingProperty(WifiController *c);
-        virtual ~WifiSearchingProperty() {}
-        int set(int idx, int value) { return -1; }
-        int get(int idx, int *buffer);
-    };
-
-    class WifiPacketFilterProperty : public WifiIntegerProperty {
-    public:
-        WifiPacketFilterProperty(WifiController *c);
-        virtual ~WifiPacketFilterProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiBluetoothCoexScanProperty : public WifiIntegerProperty {
-    public:
-        WifiBluetoothCoexScanProperty(WifiController *c);
-        virtual ~WifiBluetoothCoexScanProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiBluetoothCoexModeProperty : public WifiIntegerProperty {
-    public:
-        WifiBluetoothCoexModeProperty(WifiController *c);
-        virtual ~WifiBluetoothCoexModeProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiCurrentNetworkProperty : public WifiIntegerProperty {
-    public:
-        WifiCurrentNetworkProperty(WifiController *c);
-        virtual ~WifiCurrentNetworkProperty() {}
-        int set(int idx, int value) { return -1; }
-        int get(int idx, int *buffer);
-    };
-
-    class WifiSuspendedProperty : public WifiIntegerProperty {
-    public:
-        WifiSuspendedProperty(WifiController *c);
-        virtual ~WifiSuspendedProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiNetCountProperty : public WifiIntegerProperty {
-    public:
-        WifiNetCountProperty(WifiController *c);
-        virtual ~WifiNetCountProperty() {}
-        int set(int idx, int value) { return -1; }
-        int get(int idx, int *buffer);
-    };
-
-    class WifiTriggerScanProperty : public WifiIntegerProperty {
-    public:
-        WifiTriggerScanProperty(WifiController *c);
-        virtual ~WifiTriggerScanProperty() {}
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiSupplicantStateProperty : public WifiStringProperty {
-    public:
-        WifiSupplicantStateProperty(WifiController *c);
-        virtual ~WifiSupplicantStateProperty() {}
-        int set(int idx, const char *value) { return -1; }
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiInterfaceProperty : public WifiStringProperty {
-    public:
-        WifiInterfaceProperty(WifiController *c);
-        virtual ~WifiInterfaceProperty() {}
-        int set(int idx, const char *value) { return -1; }
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    Supplicant *mSupplicant;
-    char        mModulePath[255];
-    char        mModuleName[64];
-    char        mModuleArgs[255];
-
-    int         mSupplicantState;
-    bool        mActiveScan;
-    bool        mScanOnly;
-    bool        mPacketFilter;
-    bool        mBluetoothCoexScan;
-    int         mBluetoothCoexMode;
-    int         mCurrentlyConnectedNetworkId;
-    bool        mSuspended;
-    int         mLastRssi;
-    int         mRssiEventThreshold;
-    int         mLastLinkSpeed;
-    int         mNumAllowedChannels;
-
-    ScanResultCollection *mLatestScanResults;
-    pthread_mutex_t      mLatestScanResultsLock;
-    pthread_mutex_t      mLock;
-    WifiStatusPoller     *mStatusPoller;
-
-    struct {
-        WifiEnabledProperty         *propEnabled;
-        WifiScanOnlyProperty        *propScanOnly;
-        WifiAllowedChannelsProperty *propAllowedChannels;
-        IntegerPropertyHelper       *propRssiEventThreshold;
-    } mStaticProperties;
-
-    struct {
-        WifiActiveScanProperty        *propActiveScan;
-        WifiSearchingProperty         *propSearching;
-        WifiPacketFilterProperty      *propPacketFilter;
-        WifiBluetoothCoexScanProperty *propBluetoothCoexScan;
-        WifiBluetoothCoexModeProperty *propBluetoothCoexMode;
-        WifiCurrentNetworkProperty    *propCurrentNetwork;
-        IntegerPropertyHelper         *propRssi;
-        IntegerPropertyHelper         *propLinkSpeed;
-        WifiSuspendedProperty         *propSuspended;
-        WifiNetCountProperty          *propNetCount;
-        WifiSupplicantStateProperty   *propSupplicantState;
-        WifiInterfaceProperty         *propInterface;
-        WifiTriggerScanProperty       *propTriggerScan;
-    } mDynamicProperties;
-
-    // True if supplicant is currently searching for a network
-    bool mIsSupplicantSearching;
-    int  mNumScanResultsSinceLastStateChange;
-
-    bool        mEnabled;
-
-public:
-    WifiController(PropertyManager *propmngr, IControllerHandler *handlers, char *modpath, char *modname, char *modargs);
-    virtual ~WifiController() {}
-
-    int start();
-    int stop();
-
-    WifiNetwork *createNetwork();
-    int removeNetwork(int networkId);
-    WifiNetworkCollection *createNetworkList();
-
-    ScanResultCollection *createScanResults();
-
-    char *getModulePath() { return mModulePath; }
-    char *getModuleName() { return mModuleName; }
-    char *getModuleArgs() { return mModuleArgs; }
-
-    Supplicant *getSupplicant() { return mSupplicant; }
-
-protected:
-    // Move this crap into a 'driver'
-    virtual int powerUp() = 0;
-    virtual int powerDown() = 0;
-    virtual int loadFirmware();
-
-    virtual bool isFirmwareLoaded() = 0;
-    virtual bool isPoweredUp() = 0;
-
-private:
-    void sendStatusBroadcast(const char *msg);
-    int setActiveScan(bool active);
-    int triggerScan();
-    int enable();
-    int disable();
-    int setSuspend(bool suspend);
-    bool getSuspended();
-    int setBluetoothCoexistenceScan(bool enable);
-    int setBluetoothCoexistenceMode(int mode);
-    int setPacketFilter(bool enable);
-    int setScanOnly(bool scanOnly);
-
-    // ISupplicantEventHandler methods
-    void onAssociatingEvent(SupplicantAssociatingEvent *evt);
-    void onAssociatedEvent(SupplicantAssociatedEvent *evt);
-    void onConnectedEvent(SupplicantConnectedEvent *evt);
-    void onScanResultsEvent(SupplicantScanResultsEvent *evt);
-    void onStateChangeEvent(SupplicantStateChangeEvent *evt);
-    void onConnectionTimeoutEvent(SupplicantConnectionTimeoutEvent *evt);
-    void onDisconnectedEvent(SupplicantDisconnectedEvent *evt);
-#if 0
-    virtual void onTerminatingEvent(SupplicantEvent *evt);
-    virtual void onPasswordChangedEvent(SupplicantEvent *evt);
-    virtual void onEapNotificationEvent(SupplicantEvent *evt);
-    virtual void onEapStartedEvent(SupplicantEvent *evt);
-    virtual void onEapMethodEvent(SupplicantEvent *evt);
-    virtual void onEapSuccessEvent(SupplicantEvent *evt);
-    virtual void onEapFailureEvent(SupplicantEvent *evt);
-    virtual void onLinkSpeedEvent(SupplicantEvent *evt);
-    virtual void onDriverStateEvent(SupplicantEvent *evt);
-#endif
-
-    void onStatusPollInterval();
-
-    int verifyNotSuspended();
-};
-
-#endif
diff --git a/nexus/WifiNetwork.cpp b/nexus/WifiNetwork.cpp
deleted file mode 100644
index 0197b64..0000000
--- a/nexus/WifiNetwork.cpp
+++ /dev/null
@@ -1,970 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/types.h>
-
-#define LOG_TAG "WifiNetwork"
-#include <cutils/log.h>
-
-#include "NetworkManager.h"
-#include "WifiNetwork.h"
-#include "Supplicant.h"
-#include "WifiController.h"
-
-WifiNetwork::WifiNetwork() {
-   // This is private to restrict copy constructors
-}
-
-WifiNetwork::WifiNetwork(WifiController *c, Supplicant *suppl, const char *data) {
-    mController = c;
-    mSuppl = suppl;
-
-    char *tmp = strdup(data);
-    char *next = tmp;
-    char *id;
-    char *ssid;
-    char *bssid;
-    char *flags;
-
-    if (!(id = strsep(&next, "\t")))
-        ALOGE("Failed to extract network id");
-    if (!(ssid = strsep(&next, "\t")))
-        ALOGE("Failed to extract ssid");
-    if (!(bssid = strsep(&next, "\t")))
-        ALOGE("Failed to extract bssid");
-    if (!(flags = strsep(&next, "\t")))
-        ALOGE("Failed to extract flags");
-
-   // ALOGD("id '%s', ssid '%s', bssid '%s', flags '%s'", id, ssid, bssid,
-   //      flags ? flags :"null");
-
-    if (id)
-        mNetid = atoi(id);
-    if (ssid)
-        mSsid = strdup(ssid);
-    if (bssid)
-        mBssid = strdup(bssid);
-
-    mPsk = NULL;
-    memset(mWepKeys, 0, sizeof(mWepKeys));
-    mDefaultKeyIndex = -1;
-    mPriority = -1;
-    mHiddenSsid = NULL;
-    mKeyManagement = KeyManagementMask::UNKNOWN;
-    mProtocols = 0;
-    mAuthAlgorithms = 0;
-    mPairwiseCiphers = 0;
-    mGroupCiphers = 0;
-    mEnabled = true;
-
-    if (flags && flags[0] != '\0') {
-        if (!strcmp(flags, "[DISABLED]"))
-            mEnabled = false;
-        else
-            ALOGW("Unsupported flags '%s'", flags);
-    }
-
-    free(tmp);
-    createProperties();
-}
-
-WifiNetwork::WifiNetwork(WifiController *c, Supplicant *suppl, int networkId) {
-    mController = c;
-    mSuppl = suppl;
-    mNetid = networkId;
-    mSsid = NULL;
-    mBssid = NULL;
-    mPsk = NULL;
-    memset(mWepKeys, 0, sizeof(mWepKeys));
-    mDefaultKeyIndex = -1;
-    mPriority = -1;
-    mHiddenSsid = NULL;
-    mKeyManagement = 0;
-    mProtocols = 0;
-    mAuthAlgorithms = 0;
-    mPairwiseCiphers = 0;
-    mGroupCiphers = 0;
-    mEnabled = false;
-    createProperties();
-}
-
-WifiNetwork *WifiNetwork::clone() {
-    WifiNetwork *r = new WifiNetwork();
-
-    r->mSuppl = mSuppl;
-    r->mNetid = mNetid;
-
-    if (mSsid)
-        r->mSsid = strdup(mSsid);
-    if (mBssid)
-        r->mBssid = strdup(mBssid);
-    if (mPsk)
-        r->mPsk = strdup(mPsk);
-
-    r->mController = mController;
-    memcpy(r->mWepKeys, mWepKeys, sizeof(mWepKeys));
-    r->mDefaultKeyIndex = mDefaultKeyIndex;
-    r->mPriority = mPriority;
-    if (mHiddenSsid)
-        r->mHiddenSsid = strdup(mHiddenSsid);
-    r->mKeyManagement = mKeyManagement;
-    r->mProtocols = mProtocols;
-    r->mAuthAlgorithms = mAuthAlgorithms;
-    r->mPairwiseCiphers = mPairwiseCiphers;
-    r->mGroupCiphers = mGroupCiphers;
-    return r;
-}
-
-void WifiNetwork::createProperties() {
-    asprintf(&mPropNamespace, "wifi.net.%d", mNetid);
-
-    mStaticProperties.propEnabled = new WifiNetworkEnabledProperty(this);
-    mStaticProperties.propSsid = new WifiNetworkSsidProperty(this);
-    mStaticProperties.propBssid = new WifiNetworkBssidProperty(this);
-    mStaticProperties.propPsk = new WifiNetworkPskProperty(this);
-    mStaticProperties.propWepKey = new WifiNetworkWepKeyProperty(this);
-    mStaticProperties.propDefKeyIdx = new WifiNetworkDefaultKeyIndexProperty(this);
-    mStaticProperties.propPriority = new WifiNetworkPriorityProperty(this);
-    mStaticProperties.propKeyManagement = new WifiNetworkKeyManagementProperty(this);
-    mStaticProperties.propProtocols = new WifiNetworkProtocolsProperty(this);
-    mStaticProperties.propAuthAlgorithms = new WifiNetworkAuthAlgorithmsProperty(this);
-    mStaticProperties.propPairwiseCiphers = new WifiNetworkPairwiseCiphersProperty(this);
-    mStaticProperties.propGroupCiphers = new WifiNetworkGroupCiphersProperty(this);
-    mStaticProperties.propHiddenSsid = new WifiNetworkHiddenSsidProperty(this);
-}
-
-WifiNetwork::~WifiNetwork() {
-    if (mPropNamespace)
-        free(mPropNamespace);
-    if (mSsid)
-        free(mSsid);
-    if (mBssid)
-        free(mBssid);
-    if (mPsk)
-        free(mPsk);
-    for (int i = 0; i < 4; i++) {
-        if (mWepKeys[i])
-            free(mWepKeys[i]);
-    }
-
-    if (mHiddenSsid)
-        free(mHiddenSsid);
-
-    delete mStaticProperties.propEnabled;
-    delete mStaticProperties.propSsid;
-    delete mStaticProperties.propBssid;
-    delete mStaticProperties.propPsk;
-    delete mStaticProperties.propWepKey;
-    delete mStaticProperties.propDefKeyIdx;
-    delete mStaticProperties.propPriority;
-    delete mStaticProperties.propKeyManagement;
-    delete mStaticProperties.propProtocols;
-    delete mStaticProperties.propAuthAlgorithms;
-    delete mStaticProperties.propPairwiseCiphers;
-    delete mStaticProperties.propGroupCiphers;
-    delete mStaticProperties.propHiddenSsid;
-}
-
-int WifiNetwork::refresh() {
-    char buffer[255];
-    size_t len;
-    uint32_t mask;
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "psk", buffer, len))
-        mPsk = strdup(buffer);
-
-    for (int i = 0; i < 4; i++) {
-        char *name;
-
-        asprintf(&name, "wep_key%d", i);
-        len = sizeof(buffer);
-        if (mSuppl->getNetworkVar(mNetid, name, buffer, len))
-            mWepKeys[i] = strdup(buffer);
-        free(name);
-    }
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "wep_tx_keyidx", buffer, len))
-        mDefaultKeyIndex = atoi(buffer);
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "priority", buffer, len))
-        mPriority = atoi(buffer);
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "scan_ssid", buffer, len))
-        mHiddenSsid = strdup(buffer);
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "key_mgmt", buffer, len)) {
-        if (WifiNetwork::parseKeyManagementMask(buffer, &mask)) {
-            ALOGE("Error parsing key_mgmt (%s)", strerror(errno));
-        } else {
-           mKeyManagement = mask;
-        }
-    }
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "proto", buffer, len)) {
-        if (WifiNetwork::parseProtocolsMask(buffer, &mask)) {
-            ALOGE("Error parsing proto (%s)", strerror(errno));
-        } else {
-           mProtocols = mask;
-        }
-    }
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "auth_alg", buffer, len)) {
-        if (WifiNetwork::parseAuthAlgorithmsMask(buffer, &mask)) {
-            ALOGE("Error parsing auth_alg (%s)", strerror(errno));
-        } else {
-           mAuthAlgorithms = mask;
-        }
-    }
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "pairwise", buffer, len)) {
-        if (WifiNetwork::parsePairwiseCiphersMask(buffer, &mask)) {
-            ALOGE("Error parsing pairwise (%s)", strerror(errno));
-        } else {
-           mPairwiseCiphers = mask;
-        }
-    }
-
-    len = sizeof(buffer);
-    if (mSuppl->getNetworkVar(mNetid, "group", buffer, len)) {
-        if (WifiNetwork::parseGroupCiphersMask(buffer, &mask)) {
-            ALOGE("Error parsing group (%s)", strerror(errno));
-        } else {
-           mGroupCiphers = mask;
-        }
-    }
-
-    return 0;
-out_err:
-    ALOGE("Refresh failed (%s)",strerror(errno));
-    return -1;
-}
-
-int WifiNetwork::setSsid(const char *ssid) {
-    char tmp[255];
-    snprintf(tmp, sizeof(tmp), "\"%s\"", ssid);
-    if (mSuppl->setNetworkVar(mNetid, "ssid", tmp))
-        return -1;
-    if (mSsid)
-        free(mSsid);
-    mSsid = strdup(ssid);
-    return 0;
-}
-
-int WifiNetwork::setBssid(const char *bssid) {
-    if (mSuppl->setNetworkVar(mNetid, "bssid", bssid))
-        return -1;
-    if (mBssid)
-        free(mBssid);
-    mBssid = strdup(bssid);
-    return 0;
-}
-
-int WifiNetwork::setPsk(const char *psk) {
-    char tmp[255];
-    snprintf(tmp, sizeof(tmp), "\"%s\"", psk);
-    if (mSuppl->setNetworkVar(mNetid, "psk", tmp))
-        return -1;
-
-    if (mPsk)
-        free(mPsk);
-    mPsk = strdup(psk);
-    return 0;
-}
-
-int WifiNetwork::setWepKey(int idx, const char *key) {
-    char *name;
-
-    asprintf(&name, "wep_key%d", idx);
-    int rc = mSuppl->setNetworkVar(mNetid, name, key);
-    free(name);
-
-    if (rc)
-        return -1;
-
-    if (mWepKeys[idx])
-        free(mWepKeys[idx]);
-    mWepKeys[idx] = strdup(key);
-    return 0;
-}
-
-int WifiNetwork::setDefaultKeyIndex(int idx) {
-    char val[16];
-    sprintf(val, "%d", idx);
-    if (mSuppl->setNetworkVar(mNetid, "wep_tx_keyidx", val))
-        return -1;
-
-    mDefaultKeyIndex = idx;
-    return 0;
-}
-
-int WifiNetwork::setPriority(int priority) {
-    char val[16];
-    sprintf(val, "%d", priority);
-    if (mSuppl->setNetworkVar(mNetid, "priority", val))
-        return -1;
-
-    mPriority = priority;
-    return 0;
-}
-
-int WifiNetwork::setHiddenSsid(const char *ssid) {
-    if (mSuppl->setNetworkVar(mNetid, "scan_ssid", ssid))
-        return -1;
-
-    if (mHiddenSsid)
-        free(mHiddenSsid);
-    mHiddenSsid = strdup(ssid);
-    return 0;
-}
-
-int WifiNetwork::setKeyManagement(uint32_t mask) {
-    char accum[64] = {'\0'};
-
-    if (mask == KeyManagementMask::NONE)
-        strcpy(accum, "NONE");
-    else {
-        if (mask & KeyManagementMask::WPA_PSK) 
-            strcat(accum, "WPA-PSK");
-        if (mask & KeyManagementMask::WPA_EAP) {
-            if (accum[0] != '\0')
-                strcat(accum, " ");
-            strcat(accum, "WPA-EAP");
-        }
-        if (mask & KeyManagementMask::IEEE8021X) {
-            if (accum[0] != '\0')
-                strcat(accum, " ");
-            strcat(accum, "IEEE8021X");
-        }
-    }
-
-    if (mSuppl->setNetworkVar(mNetid, "key_mgmt", accum))
-        return -1;
-    mKeyManagement = mask;
-    return 0;
-}
-
-int WifiNetwork::setProtocols(uint32_t mask) {
-    char accum[64];
-
-    accum[0] = '\0';
-
-    if (mask & SecurityProtocolMask::WPA)
-        strcpy(accum, "WPA ");
-
-    if (mask & SecurityProtocolMask::RSN)
-        strcat(accum, "RSN");
-
-    if (mSuppl->setNetworkVar(mNetid, "proto", accum))
-        return -1;
-    mProtocols = mask;
-    return 0;
-}
-
-int WifiNetwork::setAuthAlgorithms(uint32_t mask) {
-    char accum[64];
-
-    accum[0] = '\0';
-
-    if (mask == 0)
-        strcpy(accum, "");
-
-    if (mask & AuthenticationAlgorithmMask::OPEN)
-        strcpy(accum, "OPEN ");
-
-    if (mask & AuthenticationAlgorithmMask::SHARED)
-        strcat(accum, "SHARED ");
-
-    if (mask & AuthenticationAlgorithmMask::LEAP)
-        strcat(accum, "LEAP ");
-
-    if (mSuppl->setNetworkVar(mNetid, "auth_alg", accum))
-        return -1;
-
-    mAuthAlgorithms = mask;
-    return 0;
-}
-
-int WifiNetwork::setPairwiseCiphers(uint32_t mask) {
-    char accum[64];
-
-    accum[0] = '\0';
-
-    if (mask == PairwiseCiphersMask::NONE)
-        strcpy(accum, "NONE");
-    else {
-        if (mask & PairwiseCiphersMask::TKIP)
-            strcat(accum, "TKIP ");
-        if (mask & PairwiseCiphersMask::CCMP)
-            strcat(accum, "CCMP ");
-    }
-
-    if (mSuppl->setNetworkVar(mNetid, "pairwise", accum))
-        return -1;
-
-    mPairwiseCiphers = mask;
-    return 0;
-}
-
-int WifiNetwork::setGroupCiphers(uint32_t mask) {
-    char accum[64];
-
-    accum[0] = '\0';
-
-    if (mask & GroupCiphersMask::WEP40)
-        strcat(accum, "WEP40 ");
-    if (mask & GroupCiphersMask::WEP104)
-        strcat(accum, "WEP104 ");
-    if (mask & GroupCiphersMask::TKIP)
-        strcat(accum, "TKIP ");
-    if (mask & GroupCiphersMask::CCMP)
-        strcat(accum, "CCMP ");
-
-    if (mSuppl->setNetworkVar(mNetid, "group", accum))
-        return -1;
-    mGroupCiphers = mask;
-    return 0;
-}
-
-int WifiNetwork::setEnabled(bool enabled) {
-
-    if (enabled) {
-        if (getPriority() == -1) {
-            ALOGE("Cannot enable network when priority is not set");
-            errno = EAGAIN;
-            return -1;
-        }
-        if (getKeyManagement() == KeyManagementMask::UNKNOWN) {
-            ALOGE("Cannot enable network when KeyManagement is not set");
-            errno = EAGAIN;
-            return -1;
-        }
-    }
-
-    if (mSuppl->enableNetwork(mNetid, enabled))
-        return -1;
-
-    mEnabled = enabled;
-    return 0;
-}
-
-int WifiNetwork::attachProperties(PropertyManager *pm, const char *nsName) {
-    pm->attachProperty(nsName, mStaticProperties.propSsid);
-    pm->attachProperty(nsName, mStaticProperties.propBssid);
-    pm->attachProperty(nsName, mStaticProperties.propPsk);
-    pm->attachProperty(nsName, mStaticProperties.propWepKey);
-    pm->attachProperty(nsName, mStaticProperties.propDefKeyIdx);
-    pm->attachProperty(nsName, mStaticProperties.propPriority);
-    pm->attachProperty(nsName, mStaticProperties.propKeyManagement);
-    pm->attachProperty(nsName, mStaticProperties.propProtocols);
-    pm->attachProperty(nsName, mStaticProperties.propAuthAlgorithms);
-    pm->attachProperty(nsName, mStaticProperties.propPairwiseCiphers);
-    pm->attachProperty(nsName, mStaticProperties.propGroupCiphers);
-    pm->attachProperty(nsName, mStaticProperties.propHiddenSsid);
-    pm->attachProperty(nsName, mStaticProperties.propEnabled);
-    return 0;
-}
-
-int WifiNetwork::detachProperties(PropertyManager *pm, const char *nsName) {
-    pm->detachProperty(nsName, mStaticProperties.propEnabled);
-    pm->detachProperty(nsName, mStaticProperties.propSsid);
-    pm->detachProperty(nsName, mStaticProperties.propBssid);
-    pm->detachProperty(nsName, mStaticProperties.propPsk);
-    pm->detachProperty(nsName, mStaticProperties.propWepKey);
-    pm->detachProperty(nsName, mStaticProperties.propDefKeyIdx);
-    pm->detachProperty(nsName, mStaticProperties.propPriority);
-    pm->detachProperty(nsName, mStaticProperties.propKeyManagement);
-    pm->detachProperty(nsName, mStaticProperties.propProtocols);
-    pm->detachProperty(nsName, mStaticProperties.propAuthAlgorithms);
-    pm->detachProperty(nsName, mStaticProperties.propPairwiseCiphers);
-    pm->detachProperty(nsName, mStaticProperties.propGroupCiphers);
-    pm->detachProperty(nsName, mStaticProperties.propHiddenSsid);
-    return 0;
-}
-
-int WifiNetwork::parseKeyManagementMask(const char *buffer, uint32_t *mask) {
-    bool none = false;
-    char *v_tmp = strdup(buffer);
-    char *v_next = v_tmp;
-    char *v_token;
-
-//    ALOGD("parseKeyManagementMask(%s)", buffer);
-    *mask = 0;
-
-    while((v_token = strsep(&v_next, " "))) {
-        if (!strcasecmp(v_token, "NONE")) {
-            *mask = KeyManagementMask::NONE;
-            none = true;
-        } else if (!none) {
-            if (!strcasecmp(v_token, "WPA-PSK"))
-                *mask |= KeyManagementMask::WPA_PSK;
-            else if (!strcasecmp(v_token, "WPA-EAP"))
-                *mask |= KeyManagementMask::WPA_EAP;
-            else if (!strcasecmp(v_token, "IEEE8021X"))
-                *mask |= KeyManagementMask::IEEE8021X;
-            else {
-                ALOGW("Invalid KeyManagementMask value '%s'", v_token);
-                errno = EINVAL;
-                free(v_tmp);
-                return -1;
-            }
-        } else {
-            ALOGW("KeyManagementMask value '%s' when NONE", v_token);
-            errno = EINVAL;
-            free(v_tmp);
-            return -1;
-        }
-    }
-    free(v_tmp);
-    return 0;
-}
-
-int WifiNetwork::parseProtocolsMask(const char *buffer, uint32_t *mask) {
-    bool none = false;
-    char *v_tmp = strdup(buffer);
-    char *v_next = v_tmp;
-    char *v_token;
-
-//    ALOGD("parseProtocolsMask(%s)", buffer);
-    *mask = 0;
-    while((v_token = strsep(&v_next, " "))) {
-        if (!strcasecmp(v_token, "WPA"))
-            *mask |= SecurityProtocolMask::WPA;
-        else if (!strcasecmp(v_token, "RSN"))
-            *mask |= SecurityProtocolMask::RSN;
-        else {
-            ALOGW("Invalid ProtocolsMask value '%s'", v_token);
-            errno = EINVAL;
-            free(v_tmp);
-            return -1;
-        }
-    }
-
-    free(v_tmp);
-    return 0;
-}
-
-int WifiNetwork::parseAuthAlgorithmsMask(const char *buffer, uint32_t *mask) {
-    bool none = false;
-    char *v_tmp = strdup(buffer);
-    char *v_next = v_tmp;
-    char *v_token;
-
-//    ALOGD("parseAuthAlgorithmsMask(%s)", buffer);
-
-    *mask = 0;
-    if (buffer[0] == '\0')
-        return 0;
-
-    while((v_token = strsep(&v_next, " "))) {
-        if (!strcasecmp(v_token, "OPEN"))
-            *mask |= AuthenticationAlgorithmMask::OPEN;
-        else if (!strcasecmp(v_token, "SHARED"))
-            *mask |= AuthenticationAlgorithmMask::SHARED;
-        else if (!strcasecmp(v_token, "LEAP"))
-            *mask |= AuthenticationAlgorithmMask::LEAP;
-        else {
-            ALOGW("Invalid AuthAlgorithmsMask value '%s'", v_token);
-            errno = EINVAL;
-            free(v_tmp);
-            return -1;
-        }
-    }
-    free(v_tmp);
-    return 0;
-}
-
-int WifiNetwork::parsePairwiseCiphersMask(const char *buffer, uint32_t *mask) {
-    bool none = false;
-    char *v_tmp = strdup(buffer);
-    char *v_next = v_tmp;
-    char *v_token;
-
-//    ALOGD("parsePairwiseCiphersMask(%s)", buffer);
-
-    *mask = 0;
-    while((v_token = strsep(&v_next, " "))) {
-        if (!strcasecmp(v_token, "NONE")) {
-            *mask = PairwiseCiphersMask::NONE;
-            none = true;
-        } else if (!none) {
-            if (!strcasecmp(v_token, "TKIP"))
-                *mask |= PairwiseCiphersMask::TKIP;
-            else if (!strcasecmp(v_token, "CCMP"))
-                *mask |= PairwiseCiphersMask::CCMP;
-        else {
-                ALOGW("PairwiseCiphersMask value '%s' when NONE", v_token);
-                errno = EINVAL;
-                free(v_tmp);
-                return -1;
-            }
-        } else {
-            ALOGW("Invalid PairwiseCiphersMask value '%s'", v_token);
-            errno = EINVAL;
-            free(v_tmp);
-            return -1;
-        }
-    }
-    free(v_tmp);
-    return 0;
-}
-
-int WifiNetwork::parseGroupCiphersMask(const char *buffer, uint32_t *mask) {
-    bool none = false;
-    char *v_tmp = strdup(buffer);
-    char *v_next = v_tmp;
-    char *v_token;
-
-//    ALOGD("parseGroupCiphersMask(%s)", buffer);
-
-    *mask = 0;
-    while((v_token = strsep(&v_next, " "))) {
-        if (!strcasecmp(v_token, "WEP40"))
-            *mask |= GroupCiphersMask::WEP40;
-        else if (!strcasecmp(v_token, "WEP104"))
-            *mask |= GroupCiphersMask::WEP104;
-        else if (!strcasecmp(v_token, "TKIP"))
-            *mask |= GroupCiphersMask::TKIP;
-        else if (!strcasecmp(v_token, "CCMP"))
-            *mask |= GroupCiphersMask::CCMP;
-        else {
-            ALOGW("Invalid GroupCiphersMask value '%s'", v_token);
-            errno = EINVAL;
-            free(v_tmp);
-            return -1;
-        }
-    }
-    free(v_tmp);
-    return 0;
-}
-
-WifiNetwork::WifiNetworkIntegerProperty::WifiNetworkIntegerProperty(WifiNetwork *wn,
-                                                      const char *name,
-                                                      bool ro,
-                                                      int elements) :
-             IntegerProperty(name, ro, elements) {
-    mWn = wn;
-}
-
-WifiNetwork::WifiNetworkStringProperty::WifiNetworkStringProperty(WifiNetwork *wn,
-                                                                  const char *name,
-                                                              bool ro, int elements) :
-             StringProperty(name, ro, elements) {
-    mWn = wn;
-}
-
-WifiNetwork::WifiNetworkEnabledProperty::WifiNetworkEnabledProperty(WifiNetwork *wn) :
-                WifiNetworkIntegerProperty(wn, "Enabled", false, 1) {
-}
-
-int WifiNetwork::WifiNetworkEnabledProperty::get(int idx, int *buffer) {
-    *buffer = mWn->mEnabled;
-    return 0;
-}
-int WifiNetwork::WifiNetworkEnabledProperty::set(int idx, int value) {
-    return mWn->setEnabled(value == 1);
-}
-
-WifiNetwork::WifiNetworkSsidProperty::WifiNetworkSsidProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "Ssid", false, 1) {
-}
-
-int WifiNetwork::WifiNetworkSsidProperty::get(int idx, char *buffer, size_t max) {
-    strncpy(buffer,
-            mWn->getSsid() ? mWn->getSsid() : "none",
-            max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkSsidProperty::set(int idx, const char *value) {
-    return mWn->setSsid(value);
-}
-
-WifiNetwork::WifiNetworkBssidProperty::WifiNetworkBssidProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "Bssid", false, 1) {
-}
-int WifiNetwork::WifiNetworkBssidProperty::get(int idx, char *buffer, size_t max) {
-    strncpy(buffer,
-            mWn->getBssid() ? mWn->getBssid() : "none",
-            max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkBssidProperty::set(int idx, const char *value) {
-    return mWn->setBssid(value);
-}
-
-WifiNetwork::WifiNetworkPskProperty::WifiNetworkPskProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "Psk", false, 1) {
-}
-int WifiNetwork::WifiNetworkPskProperty::get(int idx, char *buffer, size_t max) {
-    strncpy(buffer,
-            mWn->getPsk() ? mWn->getPsk() : "none",
-            max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkPskProperty::set(int idx, const char *value) {
-    return mWn->setPsk(value);
-}
-
-WifiNetwork::WifiNetworkWepKeyProperty::WifiNetworkWepKeyProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "WepKey", false, 4) {
-}
-
-int WifiNetwork::WifiNetworkWepKeyProperty::get(int idx, char *buffer, size_t max) {
-    const char *key = mWn->getWepKey(idx);
-
-    strncpy(buffer, (key ? key : "none"), max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkWepKeyProperty::set(int idx, const char *value) {
-    return mWn->setWepKey(idx, value);
-}
-
-WifiNetwork::WifiNetworkDefaultKeyIndexProperty::WifiNetworkDefaultKeyIndexProperty(WifiNetwork *wn) :
-                WifiNetworkIntegerProperty(wn, "DefaultKeyIndex", false,  1) {
-}
-int WifiNetwork::WifiNetworkDefaultKeyIndexProperty::get(int idx, int *buffer) {
-    *buffer = mWn->getDefaultKeyIndex();
-    return 0;
-}
-int WifiNetwork::WifiNetworkDefaultKeyIndexProperty::set(int idx, int value) {
-    return mWn->setDefaultKeyIndex(value);
-}
-
-WifiNetwork::WifiNetworkPriorityProperty::WifiNetworkPriorityProperty(WifiNetwork *wn) :
-                WifiNetworkIntegerProperty(wn, "Priority", false, 1) {
-}
-int WifiNetwork::WifiNetworkPriorityProperty::get(int idx, int *buffer) {
-    *buffer = mWn->getPriority();
-    return 0;
-}
-int WifiNetwork::WifiNetworkPriorityProperty::set(int idx, int value) {
-    return mWn->setPriority(value);
-}
-
-WifiNetwork::WifiNetworkKeyManagementProperty::WifiNetworkKeyManagementProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "KeyManagement", false, 1) {
-}
-int WifiNetwork::WifiNetworkKeyManagementProperty::get(int idx, char *buffer, size_t max) {
-
-    if (mWn->getKeyManagement() == KeyManagementMask::NONE)
-        strncpy(buffer, "NONE", max);
-    else {
-        char tmp[80] = { '\0' };
-
-        if (mWn->getKeyManagement() & KeyManagementMask::WPA_PSK)
-            strcat(tmp, "WPA-PSK");
-        if (mWn->getKeyManagement() & KeyManagementMask::WPA_EAP) {
-            if (tmp[0] != '\0')
-                strcat(tmp, " ");
-            strcat(tmp, "WPA-EAP");
-        }
-        if (mWn->getKeyManagement() & KeyManagementMask::IEEE8021X) {
-            if (tmp[0] != '\0')
-                strcat(tmp, " ");
-            strcat(tmp, "IEEE8021X");
-        }
-        if (tmp[0] == '\0') {
-            strncpy(buffer, "(internal error)", max);
-            errno = ENOENT;
-            return -1;
-        }
-        if (tmp[strlen(tmp)] == ' ')
-            tmp[strlen(tmp)] = '\0';
-
-        strncpy(buffer, tmp, max);
-    }
-    return 0;
-}
-int WifiNetwork::WifiNetworkKeyManagementProperty::set(int idx, const char *value) {
-    uint32_t mask;
-    if (mWn->parseKeyManagementMask(value, &mask))
-        return -1;
-    return mWn->setKeyManagement(mask);
-}
-
-WifiNetwork::WifiNetworkProtocolsProperty::WifiNetworkProtocolsProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "Protocols", false, 1) {
-}
-int WifiNetwork::WifiNetworkProtocolsProperty::get(int idx, char *buffer, size_t max) {
-    char tmp[80] = { '\0' };
-
-    if (mWn->getProtocols() & SecurityProtocolMask::WPA)
-        strcat(tmp, "WPA");
-    if (mWn->getProtocols() & SecurityProtocolMask::RSN) {
-        if (tmp[0] != '\0')
-            strcat(tmp, " ");
-        strcat(tmp, "RSN");
-    }
-
-    if (tmp[0] == '\0') {
-        strncpy(buffer, "(internal error)", max);
-        errno = ENOENT;
-        return NULL;
-    }
-    if (tmp[strlen(tmp)] == ' ')
-        tmp[strlen(tmp)] = '\0';
-
-    strncpy(buffer, tmp, max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkProtocolsProperty::set(int idx, const char *value) {
-    uint32_t mask;
-    if (mWn->parseProtocolsMask(value, &mask))
-        return -1;
-    return mWn->setProtocols(mask);
-}
-
-WifiNetwork::WifiNetworkAuthAlgorithmsProperty::WifiNetworkAuthAlgorithmsProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "AuthAlgorithms", false, 1) {
-}
-int WifiNetwork::WifiNetworkAuthAlgorithmsProperty::get(int idx, char *buffer, size_t max) {
-    char tmp[80] = { '\0' };
-
-    if (mWn->getAuthAlgorithms() == 0) {
-        strncpy(buffer, "NONE", max);
-        return 0;
-    }
-
-    if (mWn->getAuthAlgorithms() & AuthenticationAlgorithmMask::OPEN)
-        strcat(tmp, "OPEN");
-    if (mWn->getAuthAlgorithms() & AuthenticationAlgorithmMask::SHARED) {
-        if (tmp[0] != '\0')
-            strcat(tmp, " ");
-        strcat(tmp, "SHARED");
-    }
-    if (mWn->getAuthAlgorithms() & AuthenticationAlgorithmMask::LEAP) {
-        if (tmp[0] != '\0')
-            strcat(tmp, " ");
-        strcat(tmp, "LEAP");
-    }
-
-    if (tmp[0] == '\0') {
-        strncpy(buffer, "(internal error)", max);
-        errno = ENOENT;
-        return NULL;
-    }
-    if (tmp[strlen(tmp)] == ' ')
-        tmp[strlen(tmp)] = '\0';
-
-    strncpy(buffer, tmp, max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkAuthAlgorithmsProperty::set(int idx, const char *value) {
-    uint32_t mask;
-    if (mWn->parseAuthAlgorithmsMask(value, &mask))
-        return -1;
-    return mWn->setAuthAlgorithms(mask);
-}
-
-WifiNetwork::WifiNetworkPairwiseCiphersProperty::WifiNetworkPairwiseCiphersProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "PairwiseCiphers", false, 1) {
-}
-int WifiNetwork::WifiNetworkPairwiseCiphersProperty::get(int idx, char *buffer, size_t max) {
-    if (mWn->getPairwiseCiphers() == PairwiseCiphersMask::NONE)
-        strncpy(buffer, "NONE", max);
-    else {
-        char tmp[80] = { '\0' };
-
-        if (mWn->getPairwiseCiphers() & PairwiseCiphersMask::TKIP)
-            strcat(tmp, "TKIP");
-        if (mWn->getPairwiseCiphers() & PairwiseCiphersMask::CCMP) {
-            if (tmp[0] != '\0')
-                strcat(tmp, " ");
-            strcat(tmp, "CCMP");
-        }
-        if (tmp[0] == '\0') {
-            strncpy(buffer, "(internal error)", max);
-            errno = ENOENT;
-            return NULL;
-        }
-        if (tmp[strlen(tmp)] == ' ')
-            tmp[strlen(tmp)] = '\0';
-
-        strncpy(buffer, tmp, max);
-    }
-    return 0;
-}
-int WifiNetwork::WifiNetworkPairwiseCiphersProperty::set(int idx, const char *value) {
-    uint32_t mask;
-    if (mWn->parsePairwiseCiphersMask(value, &mask))
-        return -1;
-    return mWn->setPairwiseCiphers(mask);
-}
-
-WifiNetwork::WifiNetworkGroupCiphersProperty::WifiNetworkGroupCiphersProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "GroupCiphers", false, 1) {
-}
-int WifiNetwork::WifiNetworkGroupCiphersProperty::get(int idx, char *buffer, size_t max) {
-   char tmp[80] = { '\0' };
-
-    if (mWn->getGroupCiphers() & GroupCiphersMask::WEP40)
-        strcat(tmp, "WEP40");
-    if (mWn->getGroupCiphers() & GroupCiphersMask::WEP104) {
-        if (tmp[0] != '\0')
-            strcat(tmp, " ");
-        strcat(tmp, "WEP104");
-    }
-    if (mWn->getGroupCiphers() & GroupCiphersMask::TKIP) {
-        if (tmp[0] != '\0')
-            strcat(tmp, " ");
-        strcat(tmp, "TKIP");
-    }
-    if (mWn->getGroupCiphers() & GroupCiphersMask::CCMP) {
-        if (tmp[0] != '\0')
-            strcat(tmp, " ");
-        strcat(tmp, "CCMP");
-    }
-
-    if (tmp[0] == '\0') {
-        strncpy(buffer, "(internal error)", max);
-        errno = ENOENT;
-        return -1;
-    }
-    if (tmp[strlen(tmp)] == ' ')
-        tmp[strlen(tmp)] = '\0';
-
-    strncpy(buffer, tmp, max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkGroupCiphersProperty::set(int idx, const char *value) {
-    uint32_t mask;
-    if (mWn->parseGroupCiphersMask(value, &mask))
-        return -1;
-    return mWn->setGroupCiphers(mask);
-}
-
-WifiNetwork::WifiNetworkHiddenSsidProperty::WifiNetworkHiddenSsidProperty(WifiNetwork *wn) :
-                WifiNetworkStringProperty(wn, "HiddenSsid", false, 1) {
-}
-int WifiNetwork::WifiNetworkHiddenSsidProperty::get(int idx, char *buffer, size_t max) {
-    const char *scan_ssid = mWn->getHiddenSsid();
-    
-    strncpy(buffer, (scan_ssid ? scan_ssid : "none"), max);
-    return 0;
-}
-int WifiNetwork::WifiNetworkHiddenSsidProperty::set(int idx, const char *value) {
-    return mWn->setHiddenSsid(value);
-}
diff --git a/nexus/WifiNetwork.h b/nexus/WifiNetwork.h
deleted file mode 100644
index 15ec647..0000000
--- a/nexus/WifiNetwork.h
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WIFI_NETWORK_H
-#define _WIFI_NETWORK_H
-
-#include <sys/types.h>
-
-#include <utils/List.h>
-
-#include "Property.h"
-
-class PropertyManager;
-
-class KeyManagementMask {
-public:
-    static const uint32_t UNKNOWN   = 0;
-    static const uint32_t NONE      = 0x01;
-    static const uint32_t WPA_PSK   = 0x02;
-    static const uint32_t WPA_EAP   = 0x04;
-    static const uint32_t IEEE8021X = 0x08;
-    static const uint32_t ALL       = WPA_PSK | WPA_EAP | IEEE8021X;
-};
-
-class SecurityProtocolMask {
-public:
-    static const uint32_t WPA = 0x01;
-    static const uint32_t RSN = 0x02;
-};
-
-class AuthenticationAlgorithmMask {
-public:
-    static const uint32_t OPEN   = 0x01;
-    static const uint32_t SHARED = 0x02;
-    static const uint32_t LEAP   = 0x04;
-};
-
-class PairwiseCiphersMask {
-public:
-    static const uint32_t NONE = 0x00;
-    static const uint32_t TKIP = 0x01;
-    static const uint32_t CCMP = 0x02;
-};
-
-class GroupCiphersMask {
-public:
-    static const uint32_t WEP40  = 0x01;
-    static const uint32_t WEP104 = 0x02;
-    static const uint32_t TKIP   = 0x04;
-    static const uint32_t CCMP   = 0x08;
-};
-
-class Supplicant;
-class Controller;
-class WifiController;
-
-class WifiNetwork {
-    class WifiNetworkIntegerProperty : public IntegerProperty {
-    protected:
-        WifiNetwork *mWn;
-    public:
-        WifiNetworkIntegerProperty(WifiNetwork *wn, const char *name, bool ro,
-                                   int elements);
-        virtual ~WifiNetworkIntegerProperty() {}
-        virtual int set(int idx, int value) = 0;
-        virtual int get(int idx, int *buffer) = 0;
-    };
-    friend class WifiNetwork::WifiNetworkIntegerProperty;
-
-    class WifiNetworkStringProperty : public StringProperty {
-    protected:
-        WifiNetwork *mWn;
-    public:
-        WifiNetworkStringProperty(WifiNetwork *wn, const char *name, bool ro,
-                                 int elements);
-        virtual ~WifiNetworkStringProperty() {}
-        virtual int set(int idx, const char *value) = 0;
-        virtual int get(int idx, char *buffer, size_t max) = 0;
-    };
-    friend class WifiNetwork::WifiNetworkStringProperty;
-
-    class WifiNetworkEnabledProperty : public WifiNetworkIntegerProperty {
-    public:
-        WifiNetworkEnabledProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkEnabledProperty() {};
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiNetworkPriorityProperty : public WifiNetworkIntegerProperty {
-    public:
-        WifiNetworkPriorityProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkPriorityProperty() {};
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiNetworkDefaultKeyIndexProperty : public WifiNetworkIntegerProperty {
-    public:
-        WifiNetworkDefaultKeyIndexProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkDefaultKeyIndexProperty() {};
-        int set(int idx, int value);
-        int get(int idx, int *buffer);
-    };
-
-    class WifiNetworkSsidProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkSsidProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkSsidProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkBssidProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkBssidProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkBssidProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkPskProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkPskProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkPskProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkKeyManagementProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkKeyManagementProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkKeyManagementProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkAuthAlgorithmsProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkAuthAlgorithmsProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkAuthAlgorithmsProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkProtocolsProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkProtocolsProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkProtocolsProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkWepKeyProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkWepKeyProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkWepKeyProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkPairwiseCiphersProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkPairwiseCiphersProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkPairwiseCiphersProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkGroupCiphersProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkGroupCiphersProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkGroupCiphersProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-    class WifiNetworkHiddenSsidProperty : public WifiNetworkStringProperty {
-    public:
-        WifiNetworkHiddenSsidProperty(WifiNetwork *wn);
-        virtual ~WifiNetworkHiddenSsidProperty() {};
-        int set(int idx, const char *value);
-        int get(int idx, char *buffer, size_t max);
-    };
-
-private:
-    Supplicant *mSuppl;
-    WifiController *mController;
-
-    /*
-     * Unique network id - normally provided by supplicant
-     */
-    int mNetid;
-
-    /*
-     * The networks' SSID. Can either be an ASCII string,
-     * which must be enclosed in double quotation marks
-     * (ie: "MyNetwork"), or a string of hex digits which
-     * are not enclosed in quotes (ie: 01ab7893)
-     */
-    char *mSsid;
-
-    /*
-     * When set, this entry should only be used
-     * when associating with the AP having the specified
-     * BSSID. The value is a string in the format of an
-     * Ethernet MAC address
-     */
-    char *mBssid;
-
-    /*
-     *  Pre-shared key for use with WPA-PSK
-     */
-    char *mPsk;
-
-    /*
-     * Up to four WEP keys. Either in ASCII string enclosed in
-     * double quotes, or a string of hex digits
-     */
-    char *mWepKeys[4];
-
-    /*
-     * Default WEP key index, ranging from 0 -> NUM_WEP_KEYS -1
-     */
-    int mDefaultKeyIndex;
-
-    /*
-     * Priority determines the preference given to a network by 
-     * supplicant when choosing an access point with which
-     * to associate
-     */
-    int mPriority;
-
-    /*
-     * This is a network that does not broadcast it's SSID, so an
-     * SSID-specific probe request must be used for scans.
-     */
-    char *mHiddenSsid;
-
-    /*
-     * The set of key management protocols supported by this configuration.
-     */
-    uint32_t mKeyManagement;
-
-    /*
-     * The set of security protocols supported by this configuration.
-     */
-    uint32_t mProtocols;
-
-    /*
-     * The set of authentication protocols supported by this configuration.
-     */
-    uint32_t mAuthAlgorithms;
-
-    /*
-     * The set of pairwise ciphers for WPA supported by this configuration.
-     */
-    uint32_t mPairwiseCiphers;
-
-    /*
-     * The set of group ciphers for WPA supported by this configuration.
-     */
-    uint32_t mGroupCiphers;
-
-    /*
-     * Set if this Network is enabled
-     */
-    bool mEnabled;
-
-    char *mPropNamespace;
-    struct {
-        WifiNetworkEnabledProperty               *propEnabled;
-        WifiNetworkSsidProperty                  *propSsid;
-        WifiNetworkBssidProperty                 *propBssid;
-        WifiNetworkPskProperty                   *propPsk;
-        WifiNetworkWepKeyProperty                *propWepKey;
-        WifiNetworkDefaultKeyIndexProperty       *propDefKeyIdx;
-        WifiNetworkPriorityProperty              *propPriority;
-        WifiNetworkKeyManagementProperty  *propKeyManagement;
-        WifiNetworkProtocolsProperty      *propProtocols;
-        WifiNetworkAuthAlgorithmsProperty *propAuthAlgorithms;
-        WifiNetworkPairwiseCiphersProperty       *propPairwiseCiphers;
-        WifiNetworkGroupCiphersProperty          *propGroupCiphers;
-        WifiNetworkHiddenSsidProperty            *propHiddenSsid;
-    } mStaticProperties;
-private:
-    WifiNetwork();
-
-public:
-    WifiNetwork(WifiController *c, Supplicant *suppl, int networkId);
-    WifiNetwork(WifiController *c, Supplicant *suppl, const char *data);
-
-    virtual ~WifiNetwork();
-
-    WifiNetwork *clone();
-    int attachProperties(PropertyManager *pm, const char *nsName);
-    int detachProperties(PropertyManager *pm, const char *nsName);
-
-    int getNetworkId() { return mNetid; }
-    const char *getSsid() { return mSsid; }
-    const char *getBssid() { return mBssid; }
-    const char *getPsk() { return mPsk; }
-    const char *getWepKey(int idx) { return mWepKeys[idx]; }
-    int getDefaultKeyIndex() { return mDefaultKeyIndex; }
-    int getPriority() { return mPriority; }
-    const char *getHiddenSsid() { return mHiddenSsid; }
-    uint32_t getKeyManagement() { return mKeyManagement; }
-    uint32_t getProtocols() { return mProtocols; }
-    uint32_t getAuthAlgorithms() { return mAuthAlgorithms; }
-    uint32_t getPairwiseCiphers() { return mPairwiseCiphers; }
-    uint32_t getGroupCiphers() { return mGroupCiphers; }
-    bool getEnabled() { return mEnabled; }
-    Controller *getController() { return (Controller *) mController; }
-
-    int setEnabled(bool enabled);
-    int setSsid(const char *ssid);
-    int setBssid(const char *bssid);
-    int setPsk(const char *psk);
-    int setWepKey(int idx, const char *key);
-    int setDefaultKeyIndex(int idx);
-    int setPriority(int pri);
-    int setHiddenSsid(const char *ssid);
-    int setKeyManagement(uint32_t mask);
-    int setProtocols(uint32_t mask);
-    int setAuthAlgorithms(uint32_t mask);
-    int setPairwiseCiphers(uint32_t mask);
-    int setGroupCiphers(uint32_t mask);
-
-    // XXX:Should this really be exposed?.. meh
-    int refresh();
-
-private:
-    int parseKeyManagementMask(const char *buffer, uint32_t *mask);
-    int parseProtocolsMask(const char *buffer, uint32_t *mask);
-    int parseAuthAlgorithmsMask(const char *buffer, uint32_t *mask);
-    int parsePairwiseCiphersMask(const char *buffer, uint32_t *mask);
-    int parseGroupCiphersMask(const char *buffer, uint32_t *mask);
-    void createProperties();
-};
-
-typedef android::List<WifiNetwork *> WifiNetworkCollection;
-
-#endif
diff --git a/nexus/WifiScanner.cpp b/nexus/WifiScanner.cpp
deleted file mode 100644
index 4c956ac..0000000
--- a/nexus/WifiScanner.cpp
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <errno.h>
-#include <pthread.h>
-
-#define LOG_TAG "WifiScanner"
-#include <cutils/log.h>
-
-#include "WifiScanner.h"
-#include "Supplicant.h"
-
-extern "C" int pthread_cancel(pthread_t thread);
-
-WifiScanner::WifiScanner(Supplicant *suppl, int period) {
-    mSuppl = suppl;
-    mPeriod = period;
-    mActive = false;
-}
-
-int WifiScanner::start(bool active) {
-    mActive = active;
-
-    if(pipe(mCtrlPipe))
-        return -1;
-
-    if (pthread_create(&mThread, NULL, WifiScanner::threadStart, this))
-        return -1;
-    return 0;
-}
-
-void *WifiScanner::threadStart(void *obj) {
-    WifiScanner *me = reinterpret_cast<WifiScanner *>(obj);
-    me->run();
-    pthread_exit(NULL);
-    return NULL;
-}
-
-int WifiScanner::stop() {
-    char c = 0;
-
-    if (write(mCtrlPipe[1], &c, 1) != 1) {
-        ALOGE("Error writing to control pipe (%s)", strerror(errno));
-        return -1;
-    }
-
-    void *ret;
-    if (pthread_join(mThread, &ret)) {
-        ALOGE("Error joining to scanner thread (%s)", strerror(errno));
-        return -1;
-    }
-
-    close(mCtrlPipe[0]);
-    close(mCtrlPipe[1]);
-    return 0;
-}
-
-void WifiScanner::run() {
-    ALOGD("Starting wifi scanner (active = %d)", mActive);
-
-    while(1) {
-        fd_set read_fds;
-        struct timeval to;
-        int rc = 0;
-
-        to.tv_usec = 0;
-        to.tv_sec = mPeriod;
-
-        FD_ZERO(&read_fds);
-        FD_SET(mCtrlPipe[0], &read_fds);
-
-        if (mSuppl->triggerScan(mActive)) {
-            ALOGW("Error triggering scan (%s)", strerror(errno));
-        }
-
-        if ((rc = select(mCtrlPipe[0] + 1, &read_fds, NULL, NULL, &to)) < 0) {
-            ALOGE("select failed (%s) - sleeping for one scanner period", strerror(errno));
-            sleep(mPeriod);
-            continue;
-        } else if (!rc) {
-        } else if (FD_ISSET(mCtrlPipe[0], &read_fds))
-            break;
-    } // while
-    ALOGD("Stopping wifi scanner");
-}
diff --git a/nexus/WifiScanner.h b/nexus/WifiScanner.h
deleted file mode 100644
index 92822e9..0000000
--- a/nexus/WifiScanner.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WIFISCANNER_H
-#define _WIFISCANNER_H
-
-#include <pthread.h>
-
-class Supplicant;
-
-class WifiScanner {
-    pthread_t  mThread;
-    int        mCtrlPipe[2];
-    Supplicant *mSuppl;
-    int        mPeriod;
-    bool       mActive;
-    
-
-public:
-    WifiScanner(Supplicant *suppl, int period);
-    virtual ~WifiScanner() {}
-
-    int getPeriod() { return mPeriod; }
-
-    int start(bool active);
-    int stop();
-
-private:
-    static void *threadStart(void *obj);
-
-    void run();
-};
-
-#endif
diff --git a/nexus/WifiStatusPoller.cpp b/nexus/WifiStatusPoller.cpp
deleted file mode 100644
index 015af5d..0000000
--- a/nexus/WifiStatusPoller.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/un.h>
-
-#define LOG_TAG "WifiStatusPoller"
-#include <cutils/log.h>
-
-#include "WifiStatusPoller.h"
-#include "IWifiStatusPollerHandler.h"
-
-
-WifiStatusPoller::WifiStatusPoller(IWifiStatusPollerHandler *handler) :
-                  mHandlers(handler) {
-    mPollingInterval = 5;
-    mStarted = false;
-}
-
-int WifiStatusPoller::start() {
-
-    if (pipe(mCtrlPipe))
-        return -1;
-
-    if (pthread_create(&mThread, NULL, WifiStatusPoller::threadStart, this))
-        return -1;
-
-    return 0;
-}
-
-int WifiStatusPoller::stop() {
-    char c = 0;
-
-    if (write(mCtrlPipe[1], &c, 1) != 1) {
-        ALOGE("Error writing to control pipe (%s)", strerror(errno));
-        return -1;
-    }
-
-    void *ret;
-    if (pthread_join(mThread, &ret)) {
-        ALOGE("Error joining to listener thread (%s)", strerror(errno));
-        return -1;
-    }
-    close(mCtrlPipe[0]);
-    close(mCtrlPipe[1]);
-    return 0;
-}
-
-void *WifiStatusPoller::threadStart(void *obj) {
-    WifiStatusPoller *me = reinterpret_cast<WifiStatusPoller *>(obj);
-
-    me->mStarted = true;
-    ALOGD("Starting");
-    me->run();
-    me->mStarted = false;
-    ALOGD("Stopping");
-    pthread_exit(NULL);
-    return NULL;
-}
-
-void WifiStatusPoller::run() {
-
-    while(1) {
-        struct timeval to;
-        fd_set read_fds;
-        int rc = 0;
-        int max = 0;
-
-        FD_ZERO(&read_fds);
-        to.tv_usec = 0;
-        to.tv_sec = mPollingInterval;
-
-        FD_SET(mCtrlPipe[0], &read_fds);
-        max = mCtrlPipe[0];
-
-        if ((rc = select(max + 1, &read_fds, NULL, NULL, &to)) < 0) {
-            ALOGE("select failed (%s)", strerror(errno));
-            sleep(1);
-            continue;
-        } else if (!rc) {
-            mHandlers->onStatusPollInterval();
-        }
-        if (FD_ISSET(mCtrlPipe[0], &read_fds))
-            break;
-    }
-}
diff --git a/nexus/WifiStatusPoller.h b/nexus/WifiStatusPoller.h
deleted file mode 100644
index 202bbbf..0000000
--- a/nexus/WifiStatusPoller.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WIFI_STATUS_POLLER_H
-#define _WIFI_STATUS_POLLER_H
-
-#include <pthread.h>
-
-class IWifiStatusPollerHandler;
-
-class WifiStatusPoller {
-    pthread_t                mThread;
-    int                      mCtrlPipe[2];
-    int                      mPollingInterval;
-    IWifiStatusPollerHandler *mHandlers;
-    bool                     mStarted;
-
-public:
-    WifiStatusPoller(IWifiStatusPollerHandler *handler);
-    virtual ~WifiStatusPoller() {}
-
-    int start();
-    int stop();
-    bool isStarted() { return mStarted; }
-
-    void setPollingInterval(int interval);
-    int getPollingInterval() { return mPollingInterval; }
-    
-private:
-    static void *threadStart(void *obj);
-    void run();
-};
-
-#endif
diff --git a/nexus/main.cpp b/nexus/main.cpp
deleted file mode 100644
index 7d2af02..0000000
--- a/nexus/main.cpp
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <errno.h>
-
-#define LOG_TAG "Nexus"
-
-#include "cutils/log.h"
-#include "NetworkManager.h"
-#include "CommandListener.h"
-
-#include "LoopController.h"
-#include "OpenVpnController.h"
-#include "TiwlanWifiController.h"
-
-int main() {
-    ALOGI("Nexus version 0.1 firing up");
-
-    CommandListener *cl = new CommandListener();
-
-    NetworkManager *nm;
-    if (!(nm = NetworkManager::Instance())) {
-        ALOGE("Unable to create NetworkManager");
-        exit (-1);
-    };
-
-    nm->setBroadcaster((SocketListener *) cl);
-
-    nm->attachController(new LoopController(nm->getPropMngr(), nm));
-    nm->attachController(new TiwlanWifiController(nm->getPropMngr(), nm, "/system/lib/modules/wlan.ko", "wlan", ""));
-//    nm->attachController(new AndroidL2TPVpnController(nm->getPropMngr(), nm));
-    nm->attachController(new OpenVpnController(nm->getPropMngr(), nm));
-
-
-    if (NetworkManager::Instance()->run()) {
-        ALOGE("Unable to Run NetworkManager (%s)", strerror(errno));
-        exit (1);
-    }
-
-    if (cl->startListener()) {
-        ALOGE("Unable to start CommandListener (%s)", strerror(errno));
-        exit (1);
-    }
-
-    // XXX: we'll use the main thread for the NetworkManager eventually
-
-    while(1) {
-        sleep(1000);
-    }
-
-    ALOGI("Nexus exiting");
-    exit(0);
-}
diff --git a/nexus/nexctl.c b/nexus/nexctl.c
deleted file mode 100644
index 8e1d90c..0000000
--- a/nexus/nexctl.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <signal.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#include <sys/socket.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/un.h>
-
-#include <cutils/sockets.h>
-#include <private/android_filesystem_config.h>
-
-static void usage(char *progname);
-static int do_monitor(int sock, int stop_after_cmd);
-static int do_cmd(int sock, int argc, char **argv);
-
-int main(int argc, char **argv) {
-    int sock;
-
-    if (argc < 2)
-        usage(argv[0]);
-
-    if ((sock = socket_local_client("nexus",
-                                     ANDROID_SOCKET_NAMESPACE_RESERVED,
-                                     SOCK_STREAM)) < 0) {
-        fprintf(stderr, "Error connecting (%s)\n", strerror(errno));
-        exit(4);
-    }
-
-    if (!strcmp(argv[1], "monitor"))
-        exit(do_monitor(sock, 0));
-    exit(do_cmd(sock, argc, argv));
-}
-
-static int do_cmd(int sock, int argc, char **argv) {
-    char final_cmd[255] = { '\0' };
-    int i;
-
-    for (i = 1; i < argc; i++) {
-        char *cmp;
-
-        if (!index(argv[i], ' '))
-            asprintf(&cmp, "%s%s", argv[i], (i == (argc -1)) ? "" : " ");
-        else
-            asprintf(&cmp, "\"%s\"%s", argv[i], (i == (argc -1)) ? "" : " ");
-
-        strcat(final_cmd, cmp);
-        free(cmp);
-    }
-
-    if (write(sock, final_cmd, strlen(final_cmd) + 1) < 0) {
-        perror("write");
-        return errno;
-    }
-
-    return do_monitor(sock, 1);
-}
-
-static int do_monitor(int sock, int stop_after_cmd) {
-    char *buffer = malloc(4096);
-
-    if (!stop_after_cmd)
-        printf("[Connected to Nexus]\n");
-
-    while(1) {
-        fd_set read_fds;
-        struct timeval to;
-        int rc = 0;
-
-        to.tv_sec = 10;
-        to.tv_usec = 0;
-
-        FD_ZERO(&read_fds);
-        FD_SET(sock, &read_fds);
-
-        if ((rc = select(sock +1, &read_fds, NULL, NULL, &to)) < 0) {
-            fprintf(stderr, "Error in select (%s)\n", strerror(errno));
-            free(buffer);
-            return errno;
-        } else if (!rc) {
-            continue;
-            fprintf(stderr, "[TIMEOUT]\n");
-            return ETIMEDOUT;
-        } else if (FD_ISSET(sock, &read_fds)) {
-            memset(buffer, 0, 4096);
-            if ((rc = read(sock, buffer, 4096)) <= 0) {
-                if (rc == 0)
-                    fprintf(stderr, "Lost connection to Nexus - did it crash?\n");
-                else
-                    fprintf(stderr, "Error reading data (%s)\n", strerror(errno));
-                free(buffer);
-                if (rc == 0)
-                    return ECONNRESET;
-                return errno;
-            }
-            
-            int offset = 0;
-            int i = 0;
-
-            for (i = 0; i < rc; i++) {
-                if (buffer[i] == '\0') {
-                    int code;
-                    char tmp[4];
-
-                    strncpy(tmp, buffer + offset, 3);
-                    tmp[3] = '\0';
-                    code = atoi(tmp);
-
-                    printf("%s\n", buffer + offset);
-                    if (stop_after_cmd) {
-                        if (code >= 200 && code < 600)
-                            return 0;
-                    }
-                    offset = i + 1;
-                }
-            }
-        }
-    }
-    free(buffer);
-    return 0;
-}
-
-static void usage(char *progname) {
-    fprintf(stderr, "Usage: %s <monitor>|<cmd> [arg1] [arg2...]\n", progname);
-    exit(1);
-}
-
diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index 1a9e06f..e62c3ea 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -50,6 +50,8 @@
 ALL_PREBUILT += $(file)
 $(INSTALLED_RAMDISK_TARGET): $(file)
 
+# init.usb.rc is handled by build/target/product/core.rc
+
 # Just like /system/etc/init.goldfish.sh, the /init.godlfish.rc is here
 # to allow -user builds to properly run the dex pre-optimization pass in
 # the emulator.
diff --git a/rootdir/etc/init.goldfish.rc b/rootdir/etc/init.goldfish.rc
index 83b7f8a..cde9dee 100644
--- a/rootdir/etc/init.goldfish.rc
+++ b/rootdir/etc/init.goldfish.rc
@@ -5,6 +5,10 @@
     symlink /mnt/sdcard /sdcard
 
 on boot
+    setsebool in_qemu=1
+    restorecon /sys/qemu_trace/process_name
+    restorecon /sys/qemu_trace/state
+    restorecon /sys/qemu_trace/symbol
     setprop ARGH ARGH
     setprop net.eth0.gw 10.0.2.2
     setprop net.eth0.dns1 10.0.2.3
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 236c97b..054c2ca 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -1,9 +1,21 @@
+# Copyright (C) 2012 The Android Open Source Project
+#
+# IMPORTANT: Do not create world writable files or directories.
+# This is a common source of Android security bugs.
+#
+
 import /init.${ro.hardware}.rc
+import /init.usb.rc
+import /init.trace.rc
 
 on early-init
     # Set init and its forked children's oom_adj.
     write /proc/1/oom_adj -16
 
+    # Set the security context for the init process.
+    # This should occur before anything else (e.g. ueventd) is started.
+    setcon u:r:init:s0
+
     start ueventd
 
 # create mountpoints
@@ -24,7 +36,7 @@
     export ANDROID_DATA /data
     export ASEC_MOUNTPOINT /mnt/asec
     export LOOP_MOUNTPOINT /mnt/obb
-    export BOOTCLASSPATH /system/framework/core.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar:/system/framework/filterfw.jar
+    export BOOTCLASSPATH /system/framework/core.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/telephony-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar
 
 # Backward compatibility
     symlink /system/etc /etc
@@ -70,25 +82,36 @@
     write /proc/sys/kernel/sched_compat_yield 1
     write /proc/sys/kernel/sched_child_runs_first 0
     write /proc/sys/kernel/randomize_va_space 2
+    write /proc/sys/kernel/kptr_restrict 2
+    write /proc/sys/kernel/dmesg_restrict 1
+    write /proc/sys/vm/mmap_min_addr 32768
+    write /proc/sys/kernel/sched_rt_runtime_us 950000
+    write /proc/sys/kernel/sched_rt_period_us 1000000
 
 # Create cgroup mount points for process groups
     mkdir /dev/cpuctl
     mount cgroup none /dev/cpuctl cpu
     chown system system /dev/cpuctl
     chown system system /dev/cpuctl/tasks
-    chmod 0777 /dev/cpuctl/tasks
+    chmod 0660 /dev/cpuctl/tasks
     write /dev/cpuctl/cpu.shares 1024
+    write /dev/cpuctl/cpu.rt_runtime_us 950000
+    write /dev/cpuctl/cpu.rt_period_us 1000000
 
-    mkdir /dev/cpuctl/fg_boost
-    chown system system /dev/cpuctl/fg_boost/tasks
-    chmod 0777 /dev/cpuctl/fg_boost/tasks
-    write /dev/cpuctl/fg_boost/cpu.shares 1024
+    mkdir /dev/cpuctl/apps
+    chown system system /dev/cpuctl/apps/tasks
+    chmod 0666 /dev/cpuctl/apps/tasks
+    write /dev/cpuctl/apps/cpu.shares 1024
+    write /dev/cpuctl/apps/cpu.rt_runtime_us 800000
+    write /dev/cpuctl/apps/cpu.rt_period_us 1000000
 
-    mkdir /dev/cpuctl/bg_non_interactive
-    chown system system /dev/cpuctl/bg_non_interactive/tasks
-    chmod 0777 /dev/cpuctl/bg_non_interactive/tasks
+    mkdir /dev/cpuctl/apps/bg_non_interactive
+    chown system system /dev/cpuctl/apps/bg_non_interactive/tasks
+    chmod 0666 /dev/cpuctl/apps/bg_non_interactive/tasks
     # 5.0 %
-    write /dev/cpuctl/bg_non_interactive/cpu.shares 52
+    write /dev/cpuctl/apps/bg_non_interactive/cpu.shares 52
+    write /dev/cpuctl/apps/bg_non_interactive/cpu.rt_runtime_us 700000
+    write /dev/cpuctl/apps/bg_non_interactive/cpu.rt_period_us 1000000
 
 # Allow everybody to read the xt_qtaguid resource tracking misc dev.
 # This is needed by any process that uses socket tagging.
@@ -109,10 +132,14 @@
     # We chown/chmod /cache again so because mount is run as root + defaults
     chown system cache /cache
     chmod 0770 /cache
+    # We restorecon /cache in case the cache partition has been reset.
+    restorecon /cache
 
     # This may have been created by the recovery system with odd permissions
     chown system cache /cache/recovery
     chmod 0770 /cache/recovery
+    # This may have been created by the recovery system with the wrong context.
+    restorecon /cache/recovery
 
     #change permissions on vmallocinfo so we can grab it from bugreports
     chown root log /proc/vmallocinfo
@@ -131,6 +158,8 @@
     # We chown/chmod /data again so because mount is run as root + defaults
     chown system system /data
     chmod 0771 /data
+    # We restorecon /data in case the userdata partition has been reset.
+    restorecon /data
 
     # Create dump dir and collect dumps.
     # Do this before we mount cache so eventually we can use cache for
@@ -160,11 +189,17 @@
     mkdir /data/misc/wifi 0770 wifi wifi
     chmod 0660 /data/misc/wifi/wpa_supplicant.conf
     mkdir /data/local 0751 root root
+
+    # For security reasons, /data/local/tmp should always be empty.
+    # Do not place files or directories in /data/local/tmp
     mkdir /data/local/tmp 0771 shell shell
     mkdir /data/data 0771 system system
     mkdir /data/app-private 0771 system system
+    mkdir /data/app-asec 0700 root root
     mkdir /data/app 0771 system system
     mkdir /data/property 0700 root root
+    mkdir /data/ssh 0750 root shell
+    mkdir /data/ssh/empty 0700 root root
 
     # create dalvik-cache, so as to enforce our permissions
     mkdir /data/dalvik-cache 0771 system system
@@ -187,11 +222,6 @@
     # Set indication (checked by vold) that we have finished this action
     #setprop vold.post_fs_data_done 1
 
-    chown system system /sys/class/android_usb/android0/f_mass_storage/lun/file
-    chmod 0660 /sys/class/android_usb/android0/f_mass_storage/lun/file
-    chown system system /sys/class/android_usb/android0/f_rndis/ethaddr
-    chmod 0660 /sys/class/android_usb/android0/f_rndis/ethaddr
-
 on boot
 # basic network init
     ifup lo
@@ -203,7 +233,7 @@
 
 # Memory management.  Basic kernel parameters, and allow the high
 # level system server to be able to adjust the kernel OOM driver
-# paramters to match how it is managing things.
+# parameters to match how it is managing things.
     write /proc/sys/vm/overcommit_memory 1
     write /proc/sys/vm/min_free_order_shift 4
     chown root system /sys/module/lowmemorykiller/parameters/adj
@@ -221,12 +251,34 @@
     chown radio system /sys/android_power/acquire_full_wake_lock
     chown radio system /sys/android_power/acquire_partial_wake_lock
     chown radio system /sys/android_power/release_wake_lock
-    chown radio system /sys/power/state
+    chown system system /sys/power/state
+    chown system system /sys/power/wakeup_count
     chown radio system /sys/power/wake_lock
     chown radio system /sys/power/wake_unlock
     chmod 0660 /sys/power/state
     chmod 0660 /sys/power/wake_lock
     chmod 0660 /sys/power/wake_unlock
+
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_rate
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_rate
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/boost
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boost
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse
+    chown system system /sys/devices/system/cpu/cpufreq/interactive/input_boost
+    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/input_boost
+
+    # Assume SMP uses shared cpufreq policy for all CPUs
+    chown system system /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
+    chmod 0660 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
+
     chown system system /sys/class/timed_output/vibrator/enable
     chown system system /sys/class/leds/keyboard-backlight/brightness
     chown system system /sys/class/leds/lcd-backlight/brightness
@@ -296,54 +348,12 @@
     class_reset late_start
     class_reset main
 
-# Used to disable USB when switching states
-on property:sys.usb.config=none
-    stop adbd
-    write /sys/class/android_usb/android0/enable 0
-    write /sys/class/android_usb/android0/bDeviceClass 0
-    setprop sys.usb.state ${sys.usb.config}
-
-# adb only USB configuration
-# This should only be used during device bringup
-# and as a fallback if the USB manager fails to set a standard configuration
-on property:sys.usb.config=adb
-    write /sys/class/android_usb/android0/enable 0
-    write /sys/class/android_usb/android0/idVendor 18d1
-    write /sys/class/android_usb/android0/idProduct D002
-    write /sys/class/android_usb/android0/functions ${sys.usb.config}
-    write /sys/class/android_usb/android0/enable 1
-    start adbd
-    setprop sys.usb.state ${sys.usb.config}
-
-# USB accessory configuration
-on property:sys.usb.config=accessory
-    write /sys/class/android_usb/android0/enable 0
-    write /sys/class/android_usb/android0/idVendor 18d1
-    write /sys/class/android_usb/android0/idProduct 2d00
-    write /sys/class/android_usb/android0/functions ${sys.usb.config}
-    write /sys/class/android_usb/android0/enable 1
-    setprop sys.usb.state ${sys.usb.config}
-
-# USB accessory configuration, with adb
-on property:sys.usb.config=accessory,adb
-    write /sys/class/android_usb/android0/enable 0
-    write /sys/class/android_usb/android0/idVendor 18d1
-    write /sys/class/android_usb/android0/idProduct 2d01
-    write /sys/class/android_usb/android0/functions ${sys.usb.config}
-    write /sys/class/android_usb/android0/enable 1
-    start adbd
-    setprop sys.usb.state ${sys.usb.config}
-
-# Used to set USB configuration at boot and to switch the configuration
-# when changing the default configuration
-on property:persist.sys.usb.config=*
-    setprop sys.usb.config ${persist.sys.usb.config}
-
 ## Daemon processes to be run by init.
 ##
 service ueventd /sbin/ueventd
     class core
     critical
+    seclabel u:r:ueventd:s0
 
 service console /system/bin/sh
     class core
@@ -359,23 +369,12 @@
 service adbd /sbin/adbd
     class core
     disabled
+    seclabel u:r:adbd:s0
 
 # adbd on at boot in emulator
 on property:ro.kernel.qemu=1
     start adbd
 
-# This property trigger has added to imitiate the previous behavior of "adb root".
-# The adb gadget driver used to reset the USB bus when the adbd daemon exited,
-# and the host side adb relied on this behavior to force it to reconnect with the
-# new adbd instance after init relaunches it. So now we force the USB bus to reset
-# here when adbd sets the service.adb.root property to 1.  We also restart adbd here
-# rather than waiting for init to notice its death and restarting it so the timing
-# of USB resetting and adb restarting more closely matches the previous behavior.
-on property:service.adb.root=1
-    write /sys/class/android_usb/android0/enable 0
-    restart adbd
-    write /sys/class/android_usb/android0/enable 1
-
 service servicemanager /system/bin/servicemanager
     class core
     user system
@@ -395,6 +394,7 @@
     class main
     socket netd stream 0660 root system
     socket dnsproxyd stream 0660 root inet
+    socket mdns stream 0660 root system
 
 service debuggerd /system/bin/debuggerd
     class main
@@ -423,7 +423,7 @@
 service drm /system/bin/drmserver
     class main
     user drm
-    group system inet drmrpc
+    group drm system inet drmrpc sdcard_r
 
 service media /system/bin/mediaserver
     class main
@@ -480,7 +480,7 @@
 service keystore /system/bin/keystore /data/misc/keystore
     class main
     user keystore
-    group keystore
+    group keystore drmrpc
     socket keystore stream 666
 
 service dumpstate /system/bin/dumpstate -s
@@ -488,3 +488,15 @@
     socket dumpstate stream 0660 shell log
     disabled
     oneshot
+
+service sshd /system/bin/start-ssh
+    class main
+    disabled
+
+service mdnsd /system/bin/mdnsd
+    class main
+    user mdnsr
+    group inet net_raw
+    socket mdnsd stream 0660 mdnsr inet
+    disabled
+    oneshot
diff --git a/rootdir/init.trace.rc b/rootdir/init.trace.rc
new file mode 100644
index 0000000..1d114f5
--- /dev/null
+++ b/rootdir/init.trace.rc
@@ -0,0 +1,31 @@
+## Permissions to allow system-wide tracing to the kernel trace buffer.
+##
+on boot
+
+# Allow writing to the kernel trace log.
+    chmod 0222 /sys/kernel/debug/tracing/trace_marker
+
+# Allow the shell group to enable (some) kernel tracing.
+    chown root shell /sys/kernel/debug/tracing/trace_clock
+    chown root shell /sys/kernel/debug/tracing/buffer_size_kb
+    chown root shell /sys/kernel/debug/tracing/options/overwrite
+    chown root shell /sys/kernel/debug/tracing/events/sched/sched_switch/enable
+    chown root shell /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
+    chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency/enable
+    chown root shell /sys/kernel/debug/tracing/events/power/cpu_idle/enable
+    chown root shell /sys/kernel/debug/tracing/events/cpufreq_interactive/enable
+    chown root shell /sys/kernel/debug/tracing/tracing_on
+
+    chmod 0664 /sys/kernel/debug/tracing/trace_clock
+    chmod 0664 /sys/kernel/debug/tracing/buffer_size_kb
+    chmod 0664 /sys/kernel/debug/tracing/options/overwrite
+    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_switch/enable
+    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
+    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable
+    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_idle/enable
+    chmod 0664 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable
+    chmod 0664 /sys/kernel/debug/tracing/tracing_on
+
+# Allow only the shell group to read and truncate the kernel trace.
+    chown root shell /sys/kernel/debug/tracing/trace
+    chmod 0660 /sys/kernel/debug/tracing/trace
diff --git a/rootdir/init.usb.rc b/rootdir/init.usb.rc
new file mode 100644
index 0000000..15467cc
--- /dev/null
+++ b/rootdir/init.usb.rc
@@ -0,0 +1,91 @@
+# Copyright (C) 2012 The Android Open Source Project
+#
+# USB configuration common for all android devices
+#
+
+on post-fs-data
+    chown system system /sys/class/android_usb/android0/f_mass_storage/lun/file
+    chmod 0660 /sys/class/android_usb/android0/f_mass_storage/lun/file
+    chown system system /sys/class/android_usb/android0/f_rndis/ethaddr
+    chmod 0660 /sys/class/android_usb/android0/f_rndis/ethaddr
+
+# Used to disable USB when switching states
+on property:sys.usb.config=none
+    stop adbd
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/bDeviceClass 0
+    setprop sys.usb.state ${sys.usb.config}
+
+# adb only USB configuration
+# This should only be used during device bringup
+# and as a fallback if the USB manager fails to set a standard configuration
+on property:sys.usb.config=adb
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct D002
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    start adbd
+    setprop sys.usb.state ${sys.usb.config}
+
+# USB accessory configuration
+on property:sys.usb.config=accessory
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct 2d00
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    setprop sys.usb.state ${sys.usb.config}
+
+# USB accessory configuration, with adb
+on property:sys.usb.config=accessory,adb
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct 2d01
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    start adbd
+    setprop sys.usb.state ${sys.usb.config}
+
+# audio accessory configuration
+on property:sys.usb.config=audio_source
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct 2d02
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    setprop sys.usb.state ${sys.usb.config}
+
+# audio accessory configuration, with adb
+on property:sys.usb.config=audio_source,adb
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct 2d03
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    start adbd
+    setprop sys.usb.state ${sys.usb.config}
+
+# USB and audio accessory configuration
+on property:sys.usb.config=accessory,audio_source
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct 2d04
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    setprop sys.usb.state ${sys.usb.config}
+
+# USB and audio accessory configuration, with adb
+on property:sys.usb.config=accessory,audio_source,adb
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18d1
+    write /sys/class/android_usb/android0/idProduct 2d05
+    write /sys/class/android_usb/android0/functions ${sys.usb.config}
+    write /sys/class/android_usb/android0/enable 1
+    start adbd
+    setprop sys.usb.state ${sys.usb.config}
+
+# Used to set USB configuration at boot and to switch the configuration
+# when changing the default configuration
+on property:persist.sys.usb.config=*
+    setprop sys.usb.config ${persist.sys.usb.config}
diff --git a/rootdir/ueventd.rc b/rootdir/ueventd.rc
index 438cf0a..07624c4 100644
--- a/rootdir/ueventd.rc
+++ b/rootdir/ueventd.rc
@@ -8,8 +8,9 @@
 /dev/ashmem               0666   root       root
 /dev/binder               0666   root       root
 
-# logger should be world writable (for logging) but not readable
-/dev/log/*                0662   root       log
+# Anyone can read the logs, but if they're not in the "logs"
+# group, then they'll only see log entries for their UID.
+/dev/log/*                0666   root       log
 
 # the msm hw3d client device node is world writable/readable.
 /dev/msm_hw3dc            0666   root       root
diff --git a/run-as/Android.mk b/run-as/Android.mk
index 326f5af..043cc3a 100644
--- a/run-as/Android.mk
+++ b/run-as/Android.mk
@@ -5,8 +5,4 @@
 
 LOCAL_MODULE:= run-as
 
-LOCAL_FORCE_STATIC_EXECUTABLE := true
-
-LOCAL_STATIC_LIBRARIES := libc
-
 include $(BUILD_EXECUTABLE)
diff --git a/run-as/package.c b/run-as/package.c
index ca08436..143d647 100644
--- a/run-as/package.c
+++ b/run-as/package.c
@@ -18,6 +18,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/stat.h>
+#include <sys/mman.h>
 #include <private/android_filesystem_config.h>
 #include "package.h"
 
@@ -43,9 +44,6 @@
 /* The file containing the list of installed packages on the system */
 #define PACKAGES_LIST_FILE  "/data/system/packages.list"
 
-/* This should be large enough to hold the content of the package database file */
-#define PACKAGES_LIST_BUFFER_SIZE  65536
-
 /* Copy 'srclen' string bytes from 'src' into buffer 'dst' of size 'dstlen'
  * This function always zero-terminate the destination buffer unless
  * 'dstlen' is 0, even in case of overflow.
@@ -67,40 +65,73 @@
     *dst = '\0'; /* zero-terminate result */
 }
 
-/* Read up to 'buffsize' bytes into 'buff' from the file
- * named 'filename'. Return byte length on success, or -1
- * on error.
+/* Open 'filename' and map it into our address-space.
+ * Returns buffer address, or NULL on error
+ * On exit, *filesize will be set to the file's size, or 0 on error
  */
-static int
-read_file(const char* filename, char* buff, size_t buffsize)
+static void*
+map_file(const char* filename, size_t* filesize)
 {
-    int  fd, len, old_errno;
+    int  fd, ret, old_errno;
+    struct stat  st;
+    size_t  length = 0;
+    void*   address = NULL;
 
-    /* check the input buffer size */
-    if (buffsize >= INT_MAX) {
-        errno = EINVAL;
-        return -1;
-    }
+    *filesize = 0;
 
     /* open the file for reading */
-    do {
-        fd = open(filename, O_RDONLY);
-    } while (fd < 0 && errno == EINTR);
-
+    fd = TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
     if (fd < 0)
-        return -1;
+        return NULL;
 
-    /* read the content */
-    do {
-        len = read(fd, buff, buffsize);
-    } while (len < 0 && errno == EINTR);
+    /* get its size */
+    ret = TEMP_FAILURE_RETRY(fstat(fd, &st));
+    if (ret < 0)
+        goto EXIT;
 
+    /* Ensure that the file is owned by the system user */
+    if ((st.st_uid != AID_SYSTEM) || (st.st_gid != AID_SYSTEM)) {
+        goto EXIT;
+    }
+
+    /* Ensure that the file has sane permissions */
+    if ((st.st_mode & S_IWOTH) != 0) {
+        goto EXIT;
+    }
+
+    /* Ensure that the size is not ridiculously large */
+    length = (size_t)st.st_size;
+    if ((off_t)length != st.st_size) {
+        errno = ENOMEM;
+        goto EXIT;
+    }
+
+    /* Memory-map the file now */
+    address = TEMP_FAILURE_RETRY(mmap(NULL, length, PROT_READ, MAP_PRIVATE, fd, 0));
+    if (address == MAP_FAILED) {
+        address = NULL;
+        goto EXIT;
+    }
+
+    /* We're good, return size */
+    *filesize = length;
+
+EXIT:
     /* close the file, preserve old errno for better diagnostics */
     old_errno = errno;
     close(fd);
     errno = old_errno;
 
-    return len;
+    return address;
+}
+
+/* unmap the file, but preserve errno */
+static void
+unmap_file(void*  address, size_t  size)
+{
+    int old_errno = errno;
+    TEMP_FAILURE_RETRY(munmap(address, size));
+    errno = old_errno;
 }
 
 /* Check that a given directory:
@@ -371,18 +402,18 @@
 int
 get_package_info(const char* pkgName, PackageInfo *info)
 {
-    static char  buffer[PACKAGES_LIST_BUFFER_SIZE];
-    int          buffer_len;
+    char*        buffer;
+    size_t       buffer_len;
     const char*  p;
     const char*  buffer_end;
-    int          result;
+    int          result = -1;
 
     info->uid          = 0;
     info->isDebuggable = 0;
     info->dataDir[0]   = '\0';
 
-    buffer_len = read_file(PACKAGES_LIST_FILE, buffer, sizeof buffer);
-    if (buffer_len < 0)
+    buffer = map_file(PACKAGES_LIST_FILE, &buffer_len);
+    if (buffer == NULL)
         return -1;
 
     p          = buffer;
@@ -455,7 +486,8 @@
         string_copy(info->dataDir, sizeof info->dataDir, p, q - p);
 
         /* Ignore the rest */
-        return 0;
+        result = 0;
+        goto EXIT;
 
     NEXT_LINE:
         p = next;
@@ -463,9 +495,14 @@
 
     /* the package is unknown */
     errno = ENOENT;
-    return -1;
+    result = -1;
+    goto EXIT;
 
 BAD_FORMAT:
     errno = EINVAL;
-    return -1;
+    result = -1;
+
+EXIT:
+    unmap_file(buffer, buffer_len);
+    return result;
 }
diff --git a/run-as/run-as.c b/run-as/run-as.c
index d2a44e1..20e1530 100644
--- a/run-as/run-as.c
+++ b/run-as/run-as.c
@@ -41,9 +41,9 @@
  *
  *  - This program should only run for the 'root' or 'shell' users
  *
- *  - Statically link against the C library, and avoid anything that
- *    is more complex than simple system calls until the uid/gid has
- *    been dropped to that of a normal user or you are sure to exit.
+ *  - Avoid anything that is more complex than simple system calls
+ *    until the uid/gid has been dropped to that of a normal user
+ *    or you are sure to exit.
  *
  *    This avoids depending on environment variables, system properties
  *    and other external factors that may affect the C library in
diff --git a/sdcard/sdcard.c b/sdcard/sdcard.c
index 689cd2a..a95513c 100644
--- a/sdcard/sdcard.c
+++ b/sdcard/sdcard.c
@@ -43,7 +43,7 @@
  * usage:  sdcard <path> <uid> <gid>
  *
  * It must be run as root, but will change to uid/gid as soon as it
- * mounts a filesystem on /mnt/sdcard.  It will refuse to run if uid or
+ * mounts a filesystem on /storage/sdcard.  It will refuse to run if uid or
  * gid are zero.
  *
  *
@@ -70,7 +70,7 @@
 
 #define FUSE_UNKNOWN_INO 0xffffffff
 
-#define MOUNT_POINT "/mnt/sdcard"
+#define MOUNT_POINT "/storage/sdcard0"
 
 struct handle {
     struct node *node;
@@ -912,7 +912,7 @@
         out.major = FUSE_KERNEL_VERSION;
         out.minor = FUSE_KERNEL_MINOR_VERSION;
         out.max_readahead = req->max_readahead;
-        out.flags = FUSE_ATOMIC_O_TRUNC;
+        out.flags = FUSE_ATOMIC_O_TRUNC | FUSE_BIG_WRITES;
         out.max_background = 32;
         out.congestion_threshold = 32;
         out.max_write = 256 * 1024;
@@ -941,7 +941,7 @@
     int len;
     
     for (;;) {
-        len = read(fuse->fd, req, 8192);
+        len = read(fuse->fd, req, sizeof(req));
         if (len < 0) {
             if (errno == EINTR)
                 continue;
diff --git a/sh/eval.c b/sh/eval.c
index 9acfd64..4eb7ded 100644
--- a/sh/eval.c
+++ b/sh/eval.c
@@ -687,14 +687,14 @@
 	struct cmdentry cmdentry;
 	struct job *jp;
 	struct jmploc jmploc;
-	struct jmploc *volatile savehandler;
+	struct jmploc *volatile savehandler = 0;
 	char *volatile savecmdname;
 	volatile struct shparam saveparam;
 	struct localvar *volatile savelocalvars;
 	volatile int e;
 	char *lastarg;
 	const char *path = pathval();
-	volatile int temp_path;
+	volatile int temp_path = 0;
 #if __GNUC__
 	/* Avoid longjmp clobbering */
 	(void) &argv;
diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index 9daeed3..be95e7c 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -55,7 +55,8 @@
 	nandread \
 	ionice \
 	touch \
-	lsof
+	lsof \
+	md5
 
 ifeq ($(HAVE_SELINUX),true)
 
@@ -83,6 +84,8 @@
 
 LOCAL_SHARED_LIBRARIES := libcutils libc libusbhost
 
+LOCAL_C_INCLUDES := bionic/libc/bionic
+
 ifeq ($(HAVE_SELINUX),true)
 
 LOCAL_CFLAGS += -DHAVE_SELINUX
diff --git a/toolbox/chown.c b/toolbox/chown.c
index 7b24c52..92efee6 100644
--- a/toolbox/chown.c
+++ b/toolbox/chown.c
@@ -15,7 +15,7 @@
     int i;
 
     if (argc < 3) {
-        fprintf(stderr, "Usage: chown <USER>[.GROUP] <FILE1> [FILE2] ...\n");
+        fprintf(stderr, "Usage: chown <USER>[:GROUP] <FILE1> [FILE2] ...\n");
         return 10;
     }
 
@@ -24,7 +24,9 @@
     char user[32];
     char *group = NULL;
     strncpy(user, argv[1], sizeof(user));
-    if ((group = strchr(user, '.')) != NULL) {
+    if ((group = strchr(user, ':')) != NULL) {
+        *group++ = '\0';
+    } else if ((group = strchr(user, '.')) != NULL) {
         *group++ = '\0';
     }
 
diff --git a/toolbox/getevent.c b/toolbox/getevent.c
index 352f6f9..5f5e16b 100644
--- a/toolbox/getevent.c
+++ b/toolbox/getevent.c
@@ -643,7 +643,7 @@
                         return 1;
                     }
                     if(get_time) {
-                        printf("%ld-%ld: ", event.time.tv_sec, event.time.tv_usec);
+                        printf("[%8ld.%06ld] ", event.time.tv_sec, event.time.tv_usec);
                     }
                     if(print_device)
                         printf("%s: ", device_names[i]);
diff --git a/toolbox/hd.c b/toolbox/hd.c
index da31245..0d2f96a 100644
--- a/toolbox/hd.c
+++ b/toolbox/hd.c
@@ -68,6 +68,8 @@
 			if(count > 0 && base + count - filepos < read_len)
 				read_len = base + count - filepos;
 	        res = read(fd, &buf, read_len);
+			if(res == 0)
+				break;
 			for(i = 0; i < res; i++) {
 				if((i & 15) == 0) {
 					printf("%08x: ", filepos + i);
@@ -80,7 +82,7 @@
 					lsum = 0;
 				}
 			}
-			if(res <= 0) {
+			if(res < 0) {
 				printf("Read error on %s, offset %d len %d, %s\n", argv[optind], filepos, read_len, strerror(errno));
 				return 1;
 			}
diff --git a/toolbox/kill.c b/toolbox/kill.c
index 4d0e479..fa2f649 100644
--- a/toolbox/kill.c
+++ b/toolbox/kill.c
@@ -5,16 +5,129 @@
 #include <sys/types.h>
 #include <signal.h>
 
+static struct {
+    unsigned int number;
+    char *name;
+} signals[] = {
+#define _SIG(name) {SIG##name, #name}
+    /* Single Unix Specification signals */
+    _SIG(ABRT),
+    _SIG(ALRM),
+    _SIG(FPE),
+    _SIG(HUP),
+    _SIG(ILL),
+    _SIG(INT),
+    _SIG(KILL),
+    _SIG(PIPE),
+    _SIG(QUIT),
+    _SIG(SEGV),
+    _SIG(TERM),
+    _SIG(USR1),
+    _SIG(USR2),
+    _SIG(CHLD),
+    _SIG(CONT),
+    _SIG(STOP),
+    _SIG(TSTP),
+    _SIG(TTIN),
+    _SIG(TTOU),
+    _SIG(BUS),
+    _SIG(POLL),
+    _SIG(PROF),
+    _SIG(SYS),
+    _SIG(TRAP),
+    _SIG(URG),
+    _SIG(VTALRM),
+    _SIG(XCPU),
+    _SIG(XFSZ),
+    /* non-SUS signals */
+    _SIG(IO),
+    _SIG(PWR),
+#ifdef SIGSTKFLT
+    _SIG(STKFLT),
+#endif
+    _SIG(WINCH),
+#undef _SIG
+};
+
+/* To indicate a matching signal was not found */
+static const unsigned int SENTINEL = (unsigned int) -1;
+
+void list_signals()
+{
+    unsigned int sorted_signals[_NSIG];
+    unsigned int i;
+    unsigned int num;
+
+    memset(sorted_signals, SENTINEL, sizeof(sorted_signals));
+
+    // Sort the signals
+    for (i = 0; i < sizeof(signals)/sizeof(signals[0]); i++) {
+        sorted_signals[signals[i].number] = i;
+    }
+
+    num = 0;
+    for (i = 1; i < _NSIG; i++) {
+        unsigned int index = sorted_signals[i];
+        if (index == SENTINEL) {
+            continue;
+        }
+
+        fprintf(stderr, "%2d) SIG%-9s ", i, signals[index].name);
+
+        if ((num++ % 4) == 3) {
+            fprintf(stderr, "\n");
+        }
+    }
+
+    if ((num % 4) == 3) {
+        fprintf(stderr, "\n");
+    }
+}
+
+unsigned int name_to_signal(const char* name)
+{
+    unsigned int i;
+
+    for (i = 1; i < sizeof(signals) / sizeof(signals[0]); i++) {
+        if (!strcasecmp(name, signals[i].name)) {
+            return signals[i].number;
+        }
+    }
+
+    return SENTINEL;
+}
+
 int kill_main(int argc, char **argv)
 {
-    int sig = SIGTERM;
+    unsigned int sig = SIGTERM;
     int result = 0;
-    
+
     argc--;
     argv++;
 
-    if(argc >= 2 && argv[0][0] == '-'){
-        sig = atoi(argv[0] + 1);
+    if (argc >= 1 && argv[0][0] == '-') {
+        char *endptr;
+        size_t arg_len = strlen(argv[0]);
+        if (arg_len < 2) {
+            fprintf(stderr, "invalid argument: -\n");
+            return -1;
+        }
+
+        char* arg = argv[0] + 1;
+        if (arg_len == 2 && *arg == 'l') {
+            list_signals();
+            return 0;
+        }
+
+        sig = strtol(arg, &endptr, 10);
+        if (*endptr != '\0') {
+            sig = name_to_signal(arg);
+            if (sig == SENTINEL) {
+                fprintf(stderr, "invalid signal name: %s\n", arg);
+                return -1;
+            }
+        }
+
         argc--;
         argv++;
     }
@@ -26,10 +139,10 @@
             result = err;
             fprintf(stderr, "could not kill pid %d: %s\n", pid, strerror(errno));
         }
-            
+
         argc--;
         argv++;
     }
-    
+
     return result;
 }
diff --git a/toolbox/lsof.c b/toolbox/lsof.c
index 4e2f77a..376a642 100644
--- a/toolbox/lsof.c
+++ b/toolbox/lsof.c
@@ -178,8 +178,7 @@
     if (!stat(info.path, &pidstat)) {
         pw = getpwuid(pidstat.st_uid);
         if (pw) {
-            strncpy(info.user, pw->pw_name, USER_DISPLAY_MAX - 1);
-            info.user[USER_DISPLAY_MAX - 1] = '\0';
+            strlcpy(info.user, pw->pw_name, sizeof(info.user));
         } else {
             snprintf(info.user, USER_DISPLAY_MAX, "%d", (int)pidstat.st_uid);
         }
@@ -194,18 +193,20 @@
         fprintf(stderr, "Couldn't read %s\n", info.path);
         return;
     }
+
     char cmdline[PATH_MAX];
-    if (read(fd, cmdline, sizeof(cmdline)) < 0) {
+    int numRead = read(fd, cmdline, sizeof(cmdline) - 1);
+    close(fd);
+
+    if (numRead < 0) {
         fprintf(stderr, "Error reading cmdline: %s: %s\n", info.path, strerror(errno));
-        close(fd);
         return;
     }
-    close(fd);
-    info.path[info.parent_length] = '\0';
+
+    cmdline[numRead] = '\0';
 
     // We only want the basename of the cmdline
-    strncpy(info.cmdline, basename(cmdline), sizeof(info.cmdline));
-    info.cmdline[sizeof(info.cmdline)-1] = '\0';
+    strlcpy(info.cmdline, basename(cmdline), sizeof(info.cmdline));
 
     // Read each of these symlinks
     print_type("cwd", &info);
diff --git a/toolbox/md5.c b/toolbox/md5.c
new file mode 100644
index 0000000..2fb8b05
--- /dev/null
+++ b/toolbox/md5.c
@@ -0,0 +1,77 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <md5.h>
+
+/* When this was written, bionic's md5.h did not define this. */
+#ifndef MD5_DIGEST_LENGTH
+#define MD5_DIGEST_LENGTH 16
+#endif
+
+static int usage()
+{
+    fprintf(stderr,"md5 file ...\n");
+    return -1;
+}
+
+static int do_md5(const char *path)
+{
+    unsigned int i;
+    int fd;
+    MD5_CTX md5_ctx;
+    unsigned char md5[MD5_DIGEST_LENGTH];
+
+    fd = open(path, O_RDONLY);
+    if (fd < 0) {
+        fprintf(stderr,"could not open %s, %s\n", path, strerror(errno));
+        return -1;
+    }
+
+    /* Note that bionic's MD5_* functions return void. */
+    MD5_Init(&md5_ctx);
+
+    while (1) {
+        char buf[4096];
+        ssize_t rlen;
+        rlen = read(fd, buf, sizeof(buf));
+        if (rlen == 0)
+            break;
+        else if (rlen < 0) {
+            (void)close(fd);
+            fprintf(stderr,"could not read %s, %s\n", path, strerror(errno));
+            return -1;
+        }
+        MD5_Update(&md5_ctx, buf, rlen);
+    }
+    if (close(fd)) {
+        fprintf(stderr,"could not close %s, %s\n", path, strerror(errno));
+        return -1;
+    }
+
+    MD5_Final(md5, &md5_ctx);
+
+    for (i = 0; i < (int)sizeof(md5); i++)
+        printf("%02x", md5[i]);
+    printf("  %s\n", path);
+
+    return 0;
+}
+
+int md5_main(int argc, char *argv[])
+{
+    int i, ret = 0;
+
+    if (argc < 2)
+        return usage();
+
+    /* loop over the file args */
+    for (i = 1; i < argc; i++) {
+        if (do_md5(argv[i]))
+            ret = 1;
+    }
+
+    return ret;
+}
diff --git a/toolbox/newfs_msdos.c b/toolbox/newfs_msdos.c
index ff9e844..6d78eb6 100644
--- a/toolbox/newfs_msdos.c
+++ b/toolbox/newfs_msdos.c
@@ -431,7 +431,8 @@
 		bpb.spc = 8;
 	    else if (bpb.bsec <= (1<<19)) /* 256M -> 8k */
 		bpb.spc = 16;
-	    else if (bpb.bsec <= (1<<21)) /* 1G -> 16k */
+	    else if (bpb.bsec <= (1<<22)) /* 2G -> 16k, some versions of windows
+					     require a minimum of 65527 clusters */
 		bpb.spc = 32;
 	    else
 		bpb.spc = 64;		/* otherwise 32k */
diff --git a/toolbox/powerd.c b/toolbox/powerd.c
deleted file mode 100644
index 1f29a8b..0000000
--- a/toolbox/powerd.c
+++ /dev/null
@@ -1,441 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-#include <sys/select.h>
-#include <sys/inotify.h>
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
-//#include <linux/input.h> // this does not compile
-
-// from <linux/input.h>
-
-struct input_event {
-	struct timeval time;
-	__u16 type;
-	__u16 code;
-	__s32 value;
-};
-
-#define EVIOCGVERSION		_IOR('E', 0x01, int)			/* get driver version */
-#define EVIOCGID		_IOR('E', 0x02, struct input_id)	/* get device ID */
-#define EVIOCGKEYCODE		_IOR('E', 0x04, int[2])			/* get keycode */
-#define EVIOCSKEYCODE		_IOW('E', 0x04, int[2])			/* set keycode */
-
-#define EVIOCGNAME(len)		_IOC(_IOC_READ, 'E', 0x06, len)		/* get device name */
-#define EVIOCGPHYS(len)		_IOC(_IOC_READ, 'E', 0x07, len)		/* get physical location */
-#define EVIOCGUNIQ(len)		_IOC(_IOC_READ, 'E', 0x08, len)		/* get unique identifier */
-
-#define EVIOCGKEY(len)		_IOC(_IOC_READ, 'E', 0x18, len)		/* get global keystate */
-#define EVIOCGLED(len)		_IOC(_IOC_READ, 'E', 0x19, len)		/* get all LEDs */
-#define EVIOCGSND(len)		_IOC(_IOC_READ, 'E', 0x1a, len)		/* get all sounds status */
-#define EVIOCGSW(len)		_IOC(_IOC_READ, 'E', 0x1b, len)		/* get all switch states */
-
-#define EVIOCGBIT(ev,len)	_IOC(_IOC_READ, 'E', 0x20 + ev, len)	/* get event bits */
-#define EVIOCGABS(abs)		_IOR('E', 0x40 + abs, struct input_absinfo)		/* get abs value/limits */
-#define EVIOCSABS(abs)		_IOW('E', 0xc0 + abs, struct input_absinfo)		/* set abs value/limits */
-
-#define EVIOCSFF		_IOC(_IOC_WRITE, 'E', 0x80, sizeof(struct ff_effect))	/* send a force effect to a force feedback device */
-#define EVIOCRMFF		_IOW('E', 0x81, int)			/* Erase a force effect */
-#define EVIOCGEFFECTS		_IOR('E', 0x84, int)			/* Report number of effects playable at the same time */
-
-#define EVIOCGRAB		_IOW('E', 0x90, int)			/* Grab/Release device */
-
-/*
- * Event types
- */
-
-#define EV_SYN			0x00
-#define EV_KEY			0x01
-#define EV_REL			0x02
-#define EV_ABS			0x03
-#define EV_MSC			0x04
-#define EV_SW			0x05
-#define EV_LED			0x11
-#define EV_SND			0x12
-#define EV_REP			0x14
-#define EV_FF			0x15
-#define EV_PWR			0x16
-#define EV_FF_STATUS		0x17
-#define EV_MAX			0x1f
-
-#define KEY_POWER		116
-#define KEY_SLEEP		142
-#define SW_0		0x00
-
-// end <linux/input.h>
-
-struct notify_entry {
-    int id;
-    int (*handler)(struct notify_entry *entry, struct inotify_event *event);
-    const char *filename;
-};
-
-int charging_state_notify_handler(struct notify_entry *entry, struct inotify_event *event)
-{
-    static int state = -1;
-    int last_state;
-    char buf[40];
-    int read_len;
-    int fd;
-
-    last_state = state;
-    fd = open(entry->filename, O_RDONLY);
-    read_len = read(fd, buf, sizeof(buf));
-    if(read_len > 0) {
-        //printf("charging_state_notify_handler: \"%s\"\n", buf);
-        state = !(strncmp(buf, "Unknown", 7) == 0 
-                  || strncmp(buf, "Discharging", 11) == 0);
-    }
-    close(fd);
-    //printf("charging_state_notify_handler: %d -> %d\n", last_state, state);
-    return state > last_state;
-}
-
-struct notify_entry watched_files[] = {
-    {
-        .filename = "/sys/android_power/charging_state",
-        .handler = charging_state_notify_handler
-    }
-};
-
-int call_notify_handler(struct inotify_event *event)
-{
-    unsigned int start, i;
-    start = event->wd - watched_files[0].id;
-    if(start >= ARRAY_SIZE(watched_files))
-        start = 0;
-    //printf("%d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
-    for(i = start; i < ARRAY_SIZE(watched_files); i++) {
-        if(event->wd == watched_files[i].id) {
-            if(watched_files[i].handler) {
-                return watched_files[i].handler(&watched_files[i], event);
-            }
-            return 1;
-        }
-    }
-    for(i = 0; i < start; i++) {
-        if(event->wd == watched_files[i].id) {
-            if(watched_files[i].handler) {
-                return watched_files[i].handler(&watched_files[i], event);
-            }
-            return 1;
-        }
-    }
-    return 0;
-}
-
-int handle_inotify_event(int nfd)
-{
-    int res;
-    int wake_up = 0;
-    struct inotify_event *event;
-    char event_buf[512];
-    int event_pos = 0;
-
-    res = read(nfd, event_buf, sizeof(event_buf));
-    if(res < (int)sizeof(*event)) {
-        if(errno == EINTR)
-            return 0;
-        fprintf(stderr, "could not get event, %s\n", strerror(errno));
-        return 0;
-    }
-    printf("got %d bytes of event information\n", res);
-    while(res >= (int)sizeof(*event)) {
-        int event_size;
-        event = (struct inotify_event *)(event_buf + event_pos);
-        wake_up |= call_notify_handler(event);
-        event_size = sizeof(*event) + event->len;
-        res -= event_size;
-        event_pos += event_size;
-    }
-    return wake_up;
-}
-
-int powerd_main(int argc, char *argv[])
-{
-    int c;
-    unsigned int i;
-    int res;
-    struct timeval tv;
-    int eventfd;
-    int notifyfd;
-    int powerfd;
-    int powerfd_is_sleep;
-    int user_activity_fd;
-    int acquire_partial_wake_lock_fd;
-    int acquire_full_wake_lock_fd;
-    int release_wake_lock_fd;
-    char *eventdev = "/dev/input/event0";
-    const char *android_sleepdev = "/sys/android_power/request_sleep";
-    const char *android_autooff_dev = "/sys/android_power/auto_off_timeout";
-    const char *android_user_activity_dev = "/sys/android_power/last_user_activity";
-    const char *android_acquire_partial_wake_lock_dev = "/sys/android_power/acquire_partial_wake_lock";
-    const char *android_acquire_full_wake_lock_dev = "/sys/android_power/acquire_full_wake_lock";
-    const char *android_release_wake_lock_dev = "/sys/android_power/release_wake_lock";
-    const char *powerdev = "/sys/power/state";
-    const char suspendstring[] = "standby";
-    const char wakelockstring[] = "powerd";
-    fd_set rfds;
-    struct input_event event;
-    struct input_event light_event;
-    struct input_event light_event2;
-    int gotkey = 1;
-    time_t idle_time = 5;
-    const char *idle_time_string = "5";
-    time_t lcd_light_time = 0;
-    time_t key_light_time = 0;
-    int verbose = 1;
-    int event_sleep = 0;
-    int got_power_key_down = 0;
-    struct timeval power_key_down_time = { 0, 0 };
-
-    light_event.type = EV_LED;
-    light_event.code = 4; // bright lcd backlight
-    light_event.value = 0; // light off -- sleep after timeout
-
-    light_event2.type = EV_LED;
-    light_event2.code = 8; // keyboard backlight
-    light_event2.value = 0; // light off -- sleep after timeout
-
-    do {
-        c = getopt(argc, argv, "e:ni:vql:k:");
-        if (c == EOF)
-            break;
-        switch (c) {
-        case 'e':
-            eventdev = optarg;
-            break;
-        case 'n':
-            gotkey = 0;
-            break;
-        case 'i':
-            idle_time = atoi(optarg);
-            idle_time_string = optarg;
-            break;
-        case 'v':
-            verbose = 2;
-            break;
-        case 'q':
-            verbose = 0;
-            break;
-        case 'l':
-            lcd_light_time = atoi(optarg);
-            break;
-        case 'k':
-            key_light_time = atoi(optarg);
-            break;
-        case '?':
-            fprintf(stderr, "%s: invalid option -%c\n",
-                argv[0], optopt);
-            exit(1);
-        }
-    } while (1);
-    if(optind  != argc) {
-        fprintf(stderr,"%s [-e eventdev]\n", argv[0]);
-        return 1;
-    }
-
-    eventfd = open(eventdev, O_RDWR | O_NONBLOCK);
-    if(eventfd < 0) {
-        fprintf(stderr, "could not open %s, %s\n", eventdev, strerror(errno));
-        return 1;
-    }
-    if(key_light_time >= lcd_light_time) {
-        lcd_light_time = key_light_time + 1;
-        fprintf(stderr,"lcd bright backlight time must be longer than keyboard backlight time.\n"
-            "Setting lcd bright backlight time to %ld seconds\n", lcd_light_time);
-    }
-
-    user_activity_fd = open(android_user_activity_dev, O_RDWR);
-    if(user_activity_fd >= 0) {
-        int auto_off_fd = open(android_autooff_dev, O_RDWR);
-        write(auto_off_fd, idle_time_string, strlen(idle_time_string));
-        close(auto_off_fd);
-    }
-
-    powerfd = open(android_sleepdev, O_RDWR);
-    if(powerfd >= 0) {
-        powerfd_is_sleep = 1;
-        if(verbose > 0)
-            printf("Using android sleep dev: %s\n", android_sleepdev);
-    }
-    else {
-        powerfd_is_sleep = 0;
-        powerfd = open(powerdev, O_RDWR);
-        if(powerfd >= 0) {
-            if(verbose > 0)
-                printf("Using linux power dev: %s\n", powerdev);
-        }
-    }
-    if(powerfd < 0) {
-        fprintf(stderr, "could not open %s, %s\n", powerdev, strerror(errno));
-        return 1;
-    }
-
-    notifyfd = inotify_init();
-    if(notifyfd < 0) {
-        fprintf(stderr, "inotify_init failed, %s\n", strerror(errno));
-        return 1;
-    }
-    fcntl(notifyfd, F_SETFL, O_NONBLOCK | fcntl(notifyfd, F_GETFL));
-    for(i = 0; i < ARRAY_SIZE(watched_files); i++) {
-        watched_files[i].id = inotify_add_watch(notifyfd, watched_files[i].filename, IN_MODIFY);
-        printf("Watching %s, id %d\n", watched_files[i].filename, watched_files[i].id);
-    }
-
-    acquire_partial_wake_lock_fd = open(android_acquire_partial_wake_lock_dev, O_RDWR);
-    acquire_full_wake_lock_fd = open(android_acquire_full_wake_lock_dev, O_RDWR);
-    release_wake_lock_fd = open(android_release_wake_lock_dev, O_RDWR);
-
-    if(user_activity_fd >= 0) {
-        idle_time = 60*60*24; // driver handles real timeout
-    }
-    if(gotkey) {
-        tv.tv_sec = idle_time;
-        tv.tv_usec = 0;
-    }
-    else {
-        tv.tv_sec = 0;
-        tv.tv_usec = 500000;
-    }
-    
-    while(1) {
-        FD_ZERO(&rfds);
-        //FD_SET(0, &rfds);
-        FD_SET(eventfd, &rfds);
-        FD_SET(notifyfd, &rfds);
-        res = select(((notifyfd > eventfd) ? notifyfd : eventfd) + 1, &rfds, NULL, NULL, &tv);
-        if(res < 0) {
-            fprintf(stderr, "select failed, %s\n", strerror(errno));
-            return 1;
-        }
-        if(res == 0) {
-            if(light_event2.value == 1)
-                goto light2_off;
-            if(light_event.value == 1)
-                goto light_off;
-            if(user_activity_fd < 0) {
-                if(gotkey && verbose > 0)
-                    printf("Idle - sleep\n");
-                if(!gotkey && verbose > 1)
-                    printf("Reenter sleep\n");
-                goto sleep;
-            }
-            else {
-                tv.tv_sec = 60*60*24;
-                tv.tv_usec = 0;
-            }
-        }
-        if(res > 0) {
-            //if(FD_ISSET(0, &rfds)) {
-            //  printf("goto data on stdin quit\n");
-            //  return 0;
-            //}
-            if(FD_ISSET(notifyfd, &rfds)) {
-                write(acquire_partial_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-                if(handle_inotify_event(notifyfd) > 0) {
-                    write(acquire_full_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-                }
-                write(release_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-            }
-            if(FD_ISSET(eventfd, &rfds)) {
-                write(acquire_partial_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-                res = read(eventfd, &event, sizeof(event));
-                if(res < (int)sizeof(event)) {
-                    fprintf(stderr, "could not get event\n");
-                    write(release_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-                    return 1;
-                }
-                if(event.type == EV_PWR && event.code == KEY_SLEEP) {
-                    event_sleep = event.value;
-                }
-                if(event.type == EV_KEY || (event.type == EV_SW && event.code == SW_0 && event.value == 1)) {
-                    gotkey = 1;
-                    if(user_activity_fd >= 0) {
-                        char buf[32];
-                        int len;
-                        len = sprintf(buf, "%ld%06lu000", event.time.tv_sec, event.time.tv_usec);
-                        write(user_activity_fd, buf, len);
-                    }
-                    if(lcd_light_time | key_light_time) {
-                        tv.tv_sec = key_light_time;
-                        light_event.value = 1;
-                        write(eventfd, &light_event, sizeof(light_event));
-                        light_event2.value = 1;
-                        write(eventfd, &light_event2, sizeof(light_event2));
-                    }
-                    else {
-                        tv.tv_sec = idle_time;
-                    }
-                    tv.tv_usec = 0;
-                    if(verbose > 1)
-                        printf("got %s %s %d%s\n", event.type == EV_KEY ? "key" : "switch", event.value ? "down" : "up", event.code, event_sleep ? " from sleep" : "");
-                    if(event.code == KEY_POWER) {
-                        if(event.value == 0) {
-                            int tmp_got_power_key_down = got_power_key_down;
-                            got_power_key_down = 0;
-                            if(tmp_got_power_key_down) {
-                                // power key released
-                                if(verbose > 0)
-                                    printf("Power key released - sleep\n");
-                                write(release_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-                                goto sleep;
-                            }
-                        }
-                        else if(event_sleep == 0) {
-                            got_power_key_down = 1;
-                            power_key_down_time = event.time;
-                        }
-                    }
-                }
-                if(event.type == EV_SW && event.code == SW_0 && event.value == 0) {
-                    if(verbose > 0)
-                        printf("Flip closed - sleep\n");
-                    power_key_down_time = event.time;
-                    write(release_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-                    goto sleep;
-                }
-                write(release_wake_lock_fd, wakelockstring, sizeof(wakelockstring) - 1);
-            }
-        }
-        if(0) {
-light_off:
-            light_event.value = 0;
-            write(eventfd, &light_event, sizeof(light_event));
-            tv.tv_sec = idle_time - lcd_light_time;
-        }
-        if(0) {
-light2_off:
-            light_event2.value = 0;
-            write(eventfd, &light_event2, sizeof(light_event2));
-            tv.tv_sec = lcd_light_time - key_light_time;
-        }
-        if(0) {
-sleep:
-            if(light_event.value == 1) {
-                light_event.value = 0;
-                write(eventfd, &light_event, sizeof(light_event));
-                light_event2.value = 0;
-                write(eventfd, &light_event2, sizeof(light_event2));
-                tv.tv_sec = idle_time - lcd_light_time;
-            }
-            if(powerfd_is_sleep) {
-                char buf[32];
-                int len;
-                len = sprintf(buf, "%ld%06lu000", power_key_down_time.tv_sec, power_key_down_time.tv_usec);
-                write(powerfd, buf, len);
-            }
-            else
-                write(powerfd, suspendstring, sizeof(suspendstring) - 1);
-            gotkey = 0;
-            tv.tv_sec = 0;
-            tv.tv_usec = 500000;
-        }
-    }
-
-    return 0;
-}
diff --git a/toolbox/ps.c b/toolbox/ps.c
index 7c3de4a..7c35ccb 100644
--- a/toolbox/ps.c
+++ b/toolbox/ps.c
@@ -167,14 +167,8 @@
             SchedPolicy p;
             if (get_sched_policy(pid, &p) < 0)
                 printf(" un ");
-            else {
-                if (p == SP_BACKGROUND)
-                    printf(" bg ");
-                else if (p == SP_FOREGROUND)
-                    printf(" fg ");
-                else
-                    printf(" er ");
-            }
+            else
+                printf(" %.2s ", get_sched_policy_name(p));
         }
         printf(" %08x %08x %s %s", wchan, eip, state, cmdline[0] ? cmdline : name);
         if(display_flags&SHOW_TIME)
diff --git a/toolbox/rm.c b/toolbox/rm.c
index bd66311..3a24bec 100644
--- a/toolbox/rm.c
+++ b/toolbox/rm.c
@@ -7,14 +7,17 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 
+#define OPT_RECURSIVE 1
+#define OPT_FORCE     2
+
 static int usage()
 {
-    fprintf(stderr,"rm [-rR] <target>\n");
+    fprintf(stderr,"Usage: rm [-rR] [-f] <target>\n");
     return -1;
 }
 
 /* return -1 on failure, with errno set to the first error */
-static int unlink_recursive(const char* name)
+static int unlink_recursive(const char* name, int flags)
 {
     struct stat st;
     DIR *dir;
@@ -23,7 +26,7 @@
 
     /* is it a file or directory? */
     if (lstat(name, &st) < 0)
-        return -1;
+        return ((flags & OPT_FORCE) && errno == ENOENT) ? 0 : -1;
 
     /* a file, so unlink it */
     if (!S_ISDIR(st.st_mode))
@@ -41,7 +44,7 @@
         if (!strcmp(de->d_name, "..") || !strcmp(de->d_name, "."))
             continue;
         sprintf(dn, "%s/%s", name, de->d_name);
-        if (unlink_recursive(dn) < 0) {
+        if (unlink_recursive(dn, flags) < 0) {
             fail = 1;
             break;
         }
@@ -66,21 +69,45 @@
 int rm_main(int argc, char *argv[])
 {
     int ret;
-    int i = 1;
-    int recursive = 0;
+    int i, c;
+    int flags = 0;
 
     if (argc < 2)
         return usage();
 
-    /* check if recursive */
-    if (argc >=2 && (!strcmp(argv[1], "-r") || !strcmp(argv[1], "-R"))) {
-        recursive = 1;
-        i = 2;
+    /* check flags */
+    do {
+        c = getopt(argc, argv, "frR");
+        if (c == EOF)
+            break;
+        switch (c) {
+        case 'f':
+            flags |= OPT_FORCE;
+            break;
+        case 'r':
+        case 'R':
+            flags |= OPT_RECURSIVE;
+            break;
+        }
+    } while (1);
+
+    if (optind < 1 || optind >= argc) {
+        usage();
+        return -1;
     }
-    
+
     /* loop over the file/directory args */
-    for (; i < argc; i++) {
-        int ret = recursive ? unlink_recursive(argv[i]) : unlink(argv[i]);
+    for (i = optind; i < argc; i++) {
+
+        if (flags & OPT_RECURSIVE) {
+            ret = unlink_recursive(argv[i], flags);
+        } else {
+            ret = unlink(argv[i]);
+            if (errno == ENOENT && (flags & OPT_FORCE)) {
+                return 0;
+            }
+        }
+
         if (ret < 0) {
             fprintf(stderr, "rm failed for %s, %s\n", argv[i], strerror(errno));
             return -1;
diff --git a/toolbox/rmmod.c b/toolbox/rmmod.c
index 25257cc..c7e0d6a 100644
--- a/toolbox/rmmod.c
+++ b/toolbox/rmmod.c
@@ -10,7 +10,7 @@
 
 int rmmod_main(int argc, char **argv)
 {
-	int ret;
+	int ret, i;
 	char *modname, *dot;
 
 	/* make sure we've got an argument */
@@ -31,6 +31,15 @@
 	if (dot)
 		*dot = '\0';
 
+	/* Replace "-" with "_". This would keep rmmod
+	 * compatible with module-init-tools version of
+	 * rmmod
+	 */
+	for (i = 0; modname[i] != '\0'; i++) {
+		if (modname[i] == '-')
+			modname[i] = '_';
+	}
+
 	/* pass it to the kernel */
 	ret = delete_module(modname, O_NONBLOCK | O_EXCL);
 	if (ret != 0) {
diff --git a/toolbox/top.c b/toolbox/top.c
index 999c8e1..7642522 100644
--- a/toolbox/top.c
+++ b/toolbox/top.c
@@ -48,6 +48,7 @@
 
 #define PROC_NAME_LEN 64
 #define THREAD_NAME_LEN 32
+#define POLICY_NAME_LEN 4
 
 struct proc_info {
     struct proc_info *next;
@@ -67,7 +68,7 @@
     long rss;
     int prs;
     int num_threads;
-    char policy[32];
+    char policy[POLICY_NAME_LEN];
 };
 
 struct proc_list {
@@ -381,14 +382,10 @@
 static void read_policy(int pid, struct proc_info *proc) {
     SchedPolicy p;
     if (get_sched_policy(pid, &p) < 0)
-        strcpy(proc->policy, "unk");
+        strlcpy(proc->policy, "unk", POLICY_NAME_LEN);
     else {
-        if (p == SP_BACKGROUND)
-            strcpy(proc->policy, "bg");
-        else if (p == SP_FOREGROUND)
-            strcpy(proc->policy, "fg");
-        else
-            strcpy(proc->policy, "er");
+        strlcpy(proc->policy, get_sched_policy_name(p), POLICY_NAME_LEN);
+        proc->policy[2] = '\0';
     }
 }