| /* | 
 |  * Copyright (C) 2008 The Android Open Source Project | 
 |  * All rights reserved. | 
 |  * | 
 |  * Redistribution and use in source and binary forms, with or without | 
 |  * modification, are permitted provided that the following conditions | 
 |  * are met: | 
 |  *  * Redistributions of source code must retain the above copyright | 
 |  *    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 | 
 |  *    distribution. | 
 |  * | 
 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 
 |  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 
 |  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | 
 |  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | 
 |  * 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 | 
 |  * 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 _LARGEFILE64_SOURCE | 
 |  | 
 | #include <ctype.h> | 
 | #include <errno.h> | 
 | #include <fcntl.h> | 
 | #include <getopt.h> | 
 | #include <inttypes.h> | 
 | #include <limits.h> | 
 | #include <stdint.h> | 
 | #include <stdio.h> | 
 | #include <stdlib.h> | 
 | #include <string.h> | 
 | #include <sys/stat.h> | 
 | #include <sys/time.h> | 
 | #include <sys/types.h> | 
 | #include <unistd.h> | 
 |  | 
 | #include <functional> | 
 | #include <utility> | 
 | #include <vector> | 
 |  | 
 | #include <android-base/parseint.h> | 
 | #include <android-base/parsenetaddress.h> | 
 | #include <android-base/strings.h> | 
 | #include <sparse/sparse.h> | 
 | #include <ziparchive/zip_archive.h> | 
 |  | 
 | #include "bootimg_utils.h" | 
 | #include "diagnose_usb.h" | 
 | #include "fastboot.h" | 
 | #include "fs.h" | 
 | #include "tcp.h" | 
 | #include "transport.h" | 
 | #include "udp.h" | 
 | #include "usb.h" | 
 |  | 
 | #ifndef O_BINARY | 
 | #define O_BINARY 0 | 
 | #endif | 
 |  | 
 | #define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a))) | 
 |  | 
 | char cur_product[FB_RESPONSE_SZ + 1]; | 
 |  | 
 | static const char* serial = nullptr; | 
 | static const char* product = nullptr; | 
 | static const char* cmdline = nullptr; | 
 | static unsigned short vendor_id = 0; | 
 | static int long_listing = 0; | 
 | static int64_t sparse_limit = -1; | 
 | static int64_t target_sparse_limit = -1; | 
 |  | 
 | static unsigned page_size = 2048; | 
 | static unsigned base_addr      = 0x10000000; | 
 | static unsigned kernel_offset  = 0x00008000; | 
 | static unsigned ramdisk_offset = 0x01000000; | 
 | static unsigned second_offset  = 0x00f00000; | 
 | static unsigned tags_offset    = 0x00000100; | 
 |  | 
 | enum fb_buffer_type { | 
 |     FB_BUFFER, | 
 |     FB_BUFFER_SPARSE, | 
 | }; | 
 |  | 
 | struct fastboot_buffer { | 
 |     enum fb_buffer_type type; | 
 |     void* data; | 
 |     int64_t sz; | 
 | }; | 
 |  | 
 | static struct { | 
 |     char img_name[13]; | 
 |     char sig_name[13]; | 
 |     char part_name[9]; | 
 |     bool is_optional; | 
 | } images[] = { | 
 |     {"boot.img", "boot.sig", "boot", false}, | 
 |     {"recovery.img", "recovery.sig", "recovery", true}, | 
 |     {"system.img", "system.sig", "system", false}, | 
 |     {"vendor.img", "vendor.sig", "vendor", true}, | 
 | }; | 
 |  | 
 | static char* find_item(const char* item, const char* product) { | 
 |     char *dir; | 
 |     const char *fn; | 
 |     char path[PATH_MAX + 128]; | 
 |  | 
 |     if(!strcmp(item,"boot")) { | 
 |         fn = "boot.img"; | 
 |     } else if(!strcmp(item,"recovery")) { | 
 |         fn = "recovery.img"; | 
 |     } else if(!strcmp(item,"system")) { | 
 |         fn = "system.img"; | 
 |     } else if(!strcmp(item,"vendor")) { | 
 |         fn = "vendor.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 { | 
 |         fprintf(stderr,"unknown partition '%s'\n", item); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     if(product) { | 
 |         get_my_path(path); | 
 |         sprintf(path + strlen(path), | 
 |                 "../../../target/product/%s/%s", product, fn); | 
 |         return strdup(path); | 
 |     } | 
 |  | 
 |     dir = getenv("ANDROID_PRODUCT_OUT"); | 
 |     if((dir == 0) || (dir[0] == 0)) { | 
 |         die("neither -p product specified nor ANDROID_PRODUCT_OUT set"); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     sprintf(path, "%s/%s", dir, fn); | 
 |     return strdup(path); | 
 | } | 
 |  | 
 | static int64_t get_file_size(int fd) { | 
 |     struct stat sb; | 
 |     return fstat(fd, &sb) == -1 ? -1 : sb.st_size; | 
 | } | 
 |  | 
 | static void* load_fd(int fd, int64_t* sz) { | 
 |     int errno_tmp; | 
 |     char* data = nullptr; | 
 |  | 
 |     *sz = get_file_size(fd); | 
 |     if (*sz < 0) { | 
 |         goto oops; | 
 |     } | 
 |  | 
 |     data = (char*) malloc(*sz); | 
 |     if (data == nullptr) goto oops; | 
 |  | 
 |     if(read(fd, data, *sz) != *sz) goto oops; | 
 |     close(fd); | 
 |  | 
 |     return data; | 
 |  | 
 | oops: | 
 |     errno_tmp = errno; | 
 |     close(fd); | 
 |     if(data != 0) free(data); | 
 |     errno = errno_tmp; | 
 |     return 0; | 
 | } | 
 |  | 
 | static void* load_file(const char* fn, int64_t* sz) { | 
 |     int fd = open(fn, O_RDONLY | O_BINARY); | 
 |     if (fd == -1) return nullptr; | 
 |     return load_fd(fd, sz); | 
 | } | 
 |  | 
 | static int match_fastboot_with_serial(usb_ifc_info* info, const char* local_serial) { | 
 |     // Require a matching vendor id if the user specified one with -i. | 
 |     if (vendor_id != 0 && info->dev_vendor != vendor_id) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (info->ifc_class != 0xff || info->ifc_subclass != 0x42 || info->ifc_protocol != 0x03) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     // require matching serial number or device path if requested | 
 |     // at the command line with the -s option. | 
 |     if (local_serial && (strcmp(local_serial, info->serial_number) != 0 && | 
 |                    strcmp(local_serial, info->device_path) != 0)) return -1; | 
 |     return 0; | 
 | } | 
 |  | 
 | static int match_fastboot(usb_ifc_info* info) { | 
 |     return match_fastboot_with_serial(info, serial); | 
 | } | 
 |  | 
 | static int list_devices_callback(usb_ifc_info* info) { | 
 |     if (match_fastboot_with_serial(info, nullptr) == 0) { | 
 |         std::string serial = info->serial_number; | 
 |         if (!info->writable) { | 
 |             serial = UsbNoPermissionsShortHelpText(); | 
 |         } | 
 |         if (!serial[0]) { | 
 |             serial = "????????????"; | 
 |         } | 
 |         // output compatible with "adb devices" | 
 |         if (!long_listing) { | 
 |             printf("%s\tfastboot", serial.c_str()); | 
 |         } else { | 
 |             printf("%-22s fastboot", serial.c_str()); | 
 |             if (strlen(info->device_path) > 0) printf(" %s", info->device_path); | 
 |         } | 
 |         putchar('\n'); | 
 |     } | 
 |  | 
 |     return -1; | 
 | } | 
 |  | 
 | // Opens a new Transport connected to a device. If |serial| is non-null it will be used to identify | 
 | // a specific device, otherwise the first USB device found will be used. | 
 | // | 
 | // If |serial| is non-null but invalid, this prints an error message to stderr and returns nullptr. | 
 | // Otherwise it blocks until the target is available. | 
 | // | 
 | // The returned Transport is a singleton, so multiple calls to this function will return the same | 
 | // object, and the caller should not attempt to delete the returned Transport. | 
 | static Transport* open_device() { | 
 |     static Transport* transport = nullptr; | 
 |     bool announce = true; | 
 |  | 
 |     if (transport != nullptr) { | 
 |         return transport; | 
 |     } | 
 |  | 
 |     Socket::Protocol protocol = Socket::Protocol::kTcp; | 
 |     std::string host; | 
 |     int port = 0; | 
 |     if (serial != nullptr) { | 
 |         const char* net_address = nullptr; | 
 |  | 
 |         if (android::base::StartsWith(serial, "tcp:")) { | 
 |             protocol = Socket::Protocol::kTcp; | 
 |             port = tcp::kDefaultPort; | 
 |             net_address = serial + strlen("tcp:"); | 
 |         } else if (android::base::StartsWith(serial, "udp:")) { | 
 |             protocol = Socket::Protocol::kUdp; | 
 |             port = udp::kDefaultPort; | 
 |             net_address = serial + strlen("udp:"); | 
 |         } | 
 |  | 
 |         if (net_address != nullptr) { | 
 |             std::string error; | 
 |             if (!android::base::ParseNetAddress(net_address, &host, &port, nullptr, &error)) { | 
 |                 fprintf(stderr, "error: Invalid network address '%s': %s\n", net_address, | 
 |                         error.c_str()); | 
 |                 return nullptr; | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     while (true) { | 
 |         if (!host.empty()) { | 
 |             std::string error; | 
 |             if (protocol == Socket::Protocol::kTcp) { | 
 |                 transport = tcp::Connect(host, port, &error).release(); | 
 |             } else if (protocol == Socket::Protocol::kUdp) { | 
 |                 transport = udp::Connect(host, port, &error).release(); | 
 |             } | 
 |  | 
 |             if (transport == nullptr && announce) { | 
 |                 fprintf(stderr, "error: %s\n", error.c_str()); | 
 |             } | 
 |         } else { | 
 |             transport = usb_open(match_fastboot); | 
 |         } | 
 |  | 
 |         if (transport != nullptr) { | 
 |             return transport; | 
 |         } | 
 |  | 
 |         if (announce) { | 
 |             announce = false; | 
 |             fprintf(stderr, "< waiting for %s >\n", serial ? serial : "any device"); | 
 |         } | 
 |         usleep(1000); | 
 |     } | 
 | } | 
 |  | 
 | static void list_devices() { | 
 |     // We don't actually open a USB device here, | 
 |     // just getting our callback called so we can | 
 |     // list all the connected devices. | 
 |     usb_open(list_devices_callback); | 
 | } | 
 |  | 
 | static void usage() { | 
 |     fprintf(stderr, | 
 | /*           1234567890123456789012345678901234567890123456789012345678901234567890123456 */ | 
 |             "usage: fastboot [ <option> ] <command>\n" | 
 |             "\n" | 
 |             "commands:\n" | 
 |             "  update <filename>                        Reflash device from update.zip.\n" | 
 |             "  flashall                                 Flash boot, system, vendor, and --\n" | 
 |             "                                           if found -- recovery.\n" | 
 |             "  flash <partition> [ <filename> ]         Write a file to a flash partition.\n" | 
 |             "  flashing lock                            Locks the device. Prevents flashing.\n" | 
 |             "  flashing unlock                          Unlocks the device. Allows flashing\n" | 
 |             "                                           any partition except\n" | 
 |             "                                           bootloader-related partitions.\n" | 
 |             "  flashing lock_critical                   Prevents flashing bootloader-related\n" | 
 |             "                                           partitions.\n" | 
 |             "  flashing unlock_critical                 Enables flashing bootloader-related\n" | 
 |             "                                           partitions.\n" | 
 |             "  flashing get_unlock_ability              Queries bootloader to see if the\n" | 
 |             "                                           device is unlocked.\n" | 
 |             "  flashing get_unlock_bootloader_nonce     Queries the bootloader to get the\n" | 
 |             "                                           unlock nonce.\n" | 
 |             "  flashing unlock_bootloader <request>     Issue unlock bootloader using request.\n" | 
 |             "  flashing lock_bootloader                 Locks the bootloader to prevent\n" | 
 |             "                                           bootloader version rollback.\n" | 
 |             "  erase <partition>                        Erase a flash partition.\n" | 
 |             "  format[:[<fs type>][:[<size>]] <partition>\n" | 
 |             "                                           Format a flash partition. Can\n" | 
 |             "                                           override the fs type and/or size\n" | 
 |             "                                           the bootloader reports.\n" | 
 |             "  getvar <variable>                        Display a bootloader variable.\n" | 
 |             "  set_active <suffix>                      Sets the active slot. If slots are\n" | 
 |             "                                           not supported, this does nothing.\n" | 
 |             "  boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel.\n" | 
 |             "  flash:raw boot <kernel> [ <ramdisk> [ <second> ] ]\n" | 
 |             "                                           Create bootimage and flash it.\n" | 
 |             "  devices [-l]                             List all connected devices [with\n" | 
 |             "                                           device paths].\n" | 
 |             "  continue                                 Continue with autoboot.\n" | 
 |             "  reboot [bootloader]                      Reboot device [into bootloader].\n" | 
 |             "  reboot-bootloader                        Reboot device into bootloader.\n" | 
 |             "  help                                     Show this help message.\n" | 
 |             "\n" | 
 |             "options:\n" | 
 |             "  -w                                       Erase userdata and cache (and format\n" | 
 |             "                                           if supported by partition type).\n" | 
 |             "  -u                                       Do not erase partition before\n" | 
 |             "                                           formatting.\n" | 
 |             "  -s <specific device>                     Specify a device. For USB, provide either\n" | 
 |             "                                           a serial number or path to device port.\n" | 
 |             "                                           For ethernet, provide an address in the" | 
 |             "                                           form <protocol>:<hostname>[:port] where" | 
 |             "                                           <protocol> is either tcp or udp.\n" | 
 |             "  -p <product>                             Specify product name.\n" | 
 |             "  -c <cmdline>                             Override kernel commandline.\n" | 
 |             "  -i <vendor id>                           Specify a custom USB vendor id.\n" | 
 |             "  -b, --base <base_addr>                   Specify a custom kernel base\n" | 
 |             "                                           address (default: 0x10000000).\n" | 
 |             "  --kernel-offset                          Specify a custom kernel offset.\n" | 
 |             "                                           (default: 0x00008000)\n" | 
 |             "  --ramdisk-offset                         Specify a custom ramdisk offset.\n" | 
 |             "                                           (default: 0x01000000)\n" | 
 |             "  --tags-offset                            Specify a custom tags offset.\n" | 
 |             "                                           (default: 0x00000100)\n" | 
 |             "  -n, --page-size <page size>              Specify the nand page size\n" | 
 |             "                                           (default: 2048).\n" | 
 |             "  -S <size>[K|M|G]                         Automatically sparse files greater\n" | 
 |             "                                           than 'size'. 0 to disable.\n" | 
 |             "  --slot <suffix>                          Specify slot suffix to be used if the\n" | 
 |             "                                           device supports slots. This will be\n" | 
 |             "                                           added to all partition names that use\n" | 
 |             "                                           slots. 'all' can be given to refer\n" | 
 |             "                                           to all slots. 'other' can be given to\n" | 
 |             "                                           refer to a non-current slot. If this\n" | 
 |             "                                           flag is not used, slotted partitions\n" | 
 |             "                                           will default to the current active slot.\n" | 
 |             "  -a, --set-active[=<suffix>]              Sets the active slot. If no suffix is\n" | 
 |             "                                           provided, this will default to the value\n" | 
 |             "                                           given by --slot. If slots are not\n" | 
 |             "                                           supported, this does nothing. This will\n" | 
 |             "                                           run after all non-reboot commands.\n" | 
 |             "  --unbuffered                             Do not buffer input or output.\n" | 
 |             "  --version                                Display version.\n" | 
 |             "  -h, --help                               show this message.\n" | 
 |         ); | 
 | } | 
 | static void* load_bootable_image(const char* kernel, const char* ramdisk, | 
 |                                  const char* secondstage, int64_t* sz, | 
 |                                  const char* cmdline) { | 
 |     if (kernel == nullptr) { | 
 |         fprintf(stderr, "no image specified\n"); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     int64_t ksize; | 
 |     void* kdata = load_file(kernel, &ksize); | 
 |     if (kdata == nullptr) { | 
 |         fprintf(stderr, "cannot load '%s': %s\n", kernel, strerror(errno)); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     // Is this actually a boot image? | 
 |     if(!memcmp(kdata, BOOT_MAGIC, BOOT_MAGIC_SIZE)) { | 
 |         if (cmdline) bootimg_set_cmdline((boot_img_hdr*) kdata, cmdline); | 
 |  | 
 |         if (ramdisk) { | 
 |             fprintf(stderr, "cannot boot a boot.img *and* ramdisk\n"); | 
 |             return 0; | 
 |         } | 
 |  | 
 |         *sz = ksize; | 
 |         return kdata; | 
 |     } | 
 |  | 
 |     void* rdata = nullptr; | 
 |     int64_t rsize = 0; | 
 |     if (ramdisk) { | 
 |         rdata = load_file(ramdisk, &rsize); | 
 |         if (rdata == nullptr) { | 
 |             fprintf(stderr,"cannot load '%s': %s\n", ramdisk, strerror(errno)); | 
 |             return  0; | 
 |         } | 
 |     } | 
 |  | 
 |     void* sdata = nullptr; | 
 |     int64_t ssize = 0; | 
 |     if (secondstage) { | 
 |         sdata = load_file(secondstage, &ssize); | 
 |         if (sdata == nullptr) { | 
 |             fprintf(stderr,"cannot load '%s': %s\n", secondstage, strerror(errno)); | 
 |             return  0; | 
 |         } | 
 |     } | 
 |  | 
 |     fprintf(stderr,"creating boot image...\n"); | 
 |     int64_t bsize = 0; | 
 |     void* bdata = mkbootimg(kdata, ksize, kernel_offset, | 
 |                       rdata, rsize, ramdisk_offset, | 
 |                       sdata, ssize, second_offset, | 
 |                       page_size, base_addr, tags_offset, &bsize); | 
 |     if (bdata == nullptr) { | 
 |         fprintf(stderr,"failed to create boot.img\n"); | 
 |         return 0; | 
 |     } | 
 |     if (cmdline) bootimg_set_cmdline((boot_img_hdr*) bdata, cmdline); | 
 |     fprintf(stderr, "creating boot image - %" PRId64 " bytes\n", bsize); | 
 |     *sz = bsize; | 
 |  | 
 |     return bdata; | 
 | } | 
 |  | 
 | static void* unzip_file(ZipArchiveHandle zip, const char* entry_name, int64_t* sz) | 
 | { | 
 |     ZipString zip_entry_name(entry_name); | 
 |     ZipEntry zip_entry; | 
 |     if (FindEntry(zip, zip_entry_name, &zip_entry) != 0) { | 
 |         fprintf(stderr, "archive does not contain '%s'\n", entry_name); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     *sz = zip_entry.uncompressed_length; | 
 |  | 
 |     uint8_t* data = reinterpret_cast<uint8_t*>(malloc(zip_entry.uncompressed_length)); | 
 |     if (data == nullptr) { | 
 |         fprintf(stderr, "failed to allocate %" PRId64 " bytes for '%s'\n", *sz, entry_name); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     int error = ExtractToMemory(zip, &zip_entry, data, zip_entry.uncompressed_length); | 
 |     if (error != 0) { | 
 |         fprintf(stderr, "failed to extract '%s': %s\n", entry_name, ErrorCodeString(error)); | 
 |         free(data); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     return data; | 
 | } | 
 |  | 
 | #if defined(_WIN32) | 
 |  | 
 | // TODO: move this to somewhere it can be shared. | 
 |  | 
 | #include <windows.h> | 
 |  | 
 | // Windows' tmpfile(3) requires administrator rights because | 
 | // it creates temporary files in the root directory. | 
 | static FILE* win32_tmpfile() { | 
 |     char temp_path[PATH_MAX]; | 
 |     DWORD nchars = GetTempPath(sizeof(temp_path), temp_path); | 
 |     if (nchars == 0 || nchars >= sizeof(temp_path)) { | 
 |         fprintf(stderr, "GetTempPath failed, error %ld\n", GetLastError()); | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     char filename[PATH_MAX]; | 
 |     if (GetTempFileName(temp_path, "fastboot", 0, filename) == 0) { | 
 |         fprintf(stderr, "GetTempFileName failed, error %ld\n", GetLastError()); | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     return fopen(filename, "w+bTD"); | 
 | } | 
 |  | 
 | #define tmpfile win32_tmpfile | 
 |  | 
 | #endif | 
 |  | 
 | static int unzip_to_file(ZipArchiveHandle zip, char* entry_name) { | 
 |     FILE* fp = tmpfile(); | 
 |     if (fp == nullptr) { | 
 |         fprintf(stderr, "failed to create temporary file for '%s': %s\n", | 
 |                 entry_name, strerror(errno)); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     ZipString zip_entry_name(entry_name); | 
 |     ZipEntry zip_entry; | 
 |     if (FindEntry(zip, zip_entry_name, &zip_entry) != 0) { | 
 |         fprintf(stderr, "archive does not contain '%s'\n", entry_name); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     int fd = fileno(fp); | 
 |     int error = ExtractEntryToFile(zip, &zip_entry, fd); | 
 |     if (error != 0) { | 
 |         fprintf(stderr, "failed to extract '%s': %s\n", entry_name, ErrorCodeString(error)); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     lseek(fd, 0, SEEK_SET); | 
 |     return fd; | 
 | } | 
 |  | 
 | static char *strip(char *s) | 
 | { | 
 |     int n; | 
 |     while(*s && isspace(*s)) s++; | 
 |     n = strlen(s); | 
 |     while(n-- > 0) { | 
 |         if(!isspace(s[n])) break; | 
 |         s[n] = 0; | 
 |     } | 
 |     return s; | 
 | } | 
 |  | 
 | #define MAX_OPTIONS 32 | 
 | static int setup_requirement_line(char *name) | 
 | { | 
 |     char *val[MAX_OPTIONS]; | 
 |     char *prod = nullptr; | 
 |     unsigned n, count; | 
 |     char *x; | 
 |     int invert = 0; | 
 |  | 
 |     if (!strncmp(name, "reject ", 7)) { | 
 |         name += 7; | 
 |         invert = 1; | 
 |     } else if (!strncmp(name, "require ", 8)) { | 
 |         name += 8; | 
 |         invert = 0; | 
 |     } else if (!strncmp(name, "require-for-product:", 20)) { | 
 |         // Get the product and point name past it | 
 |         prod = name + 20; | 
 |         name = strchr(name, ' '); | 
 |         if (!name) return -1; | 
 |         *name = 0; | 
 |         name += 1; | 
 |         invert = 0; | 
 |     } | 
 |  | 
 |     x = strchr(name, '='); | 
 |     if (x == 0) return 0; | 
 |     *x = 0; | 
 |     val[0] = x + 1; | 
 |  | 
 |     for(count = 1; count < MAX_OPTIONS; count++) { | 
 |         x = strchr(val[count - 1],'|'); | 
 |         if (x == 0) break; | 
 |         *x = 0; | 
 |         val[count] = x + 1; | 
 |     } | 
 |  | 
 |     name = strip(name); | 
 |     for(n = 0; n < count; n++) val[n] = strip(val[n]); | 
 |  | 
 |     name = strip(name); | 
 |     if (name == 0) return -1; | 
 |  | 
 |     const char* var = name; | 
 |     // Work around an unfortunate name mismatch. | 
 |     if (!strcmp(name,"board")) var = "product"; | 
 |  | 
 |     const char** out = reinterpret_cast<const char**>(malloc(sizeof(char*) * count)); | 
 |     if (out == 0) return -1; | 
 |  | 
 |     for(n = 0; n < count; n++) { | 
 |         out[n] = strdup(strip(val[n])); | 
 |         if (out[n] == 0) { | 
 |             for(size_t i = 0; i < n; ++i) { | 
 |                 free((char*) out[i]); | 
 |             } | 
 |             free(out); | 
 |             return -1; | 
 |         } | 
 |     } | 
 |  | 
 |     fb_queue_require(prod, var, invert, n, out); | 
 |     return 0; | 
 | } | 
 |  | 
 | static void setup_requirements(char* data, int64_t sz) { | 
 |     char* s = data; | 
 |     while (sz-- > 0) { | 
 |         if (*s == '\n') { | 
 |             *s++ = 0; | 
 |             if (setup_requirement_line(data)) { | 
 |                 die("out of memory"); | 
 |             } | 
 |             data = s; | 
 |         } else { | 
 |             s++; | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | static void queue_info_dump() { | 
 |     fb_queue_notice("--------------------------------------------"); | 
 |     fb_queue_display("version-bootloader", "Bootloader Version..."); | 
 |     fb_queue_display("version-baseband",   "Baseband Version....."); | 
 |     fb_queue_display("serialno",           "Serial Number........"); | 
 |     fb_queue_notice("--------------------------------------------"); | 
 | } | 
 |  | 
 | static struct sparse_file **load_sparse_files(int fd, int max_size) | 
 | { | 
 |     struct sparse_file* s = sparse_file_import_auto(fd, false, true); | 
 |     if (!s) { | 
 |         die("cannot sparse read file\n"); | 
 |     } | 
 |  | 
 |     int files = sparse_file_resparse(s, max_size, nullptr, 0); | 
 |     if (files < 0) { | 
 |         die("Failed to resparse\n"); | 
 |     } | 
 |  | 
 |     sparse_file** out_s = reinterpret_cast<sparse_file**>(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\n"); | 
 |     } | 
 |  | 
 |     return out_s; | 
 | } | 
 |  | 
 | static int64_t get_target_sparse_limit(Transport* transport) { | 
 |     std::string max_download_size; | 
 |     if (!fb_getvar(transport, "max-download-size", &max_download_size) || | 
 |             max_download_size.empty()) { | 
 |         fprintf(stderr, "target didn't report max-download-size\n"); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     // Some bootloaders (angler, for example) send spurious whitespace too. | 
 |     max_download_size = android::base::Trim(max_download_size); | 
 |  | 
 |     uint64_t limit; | 
 |     if (!android::base::ParseUint(max_download_size.c_str(), &limit)) { | 
 |         fprintf(stderr, "couldn't parse max-download-size '%s'\n", max_download_size.c_str()); | 
 |         return 0; | 
 |     } | 
 |     if (limit > 0) { | 
 |         fprintf(stderr, "target reported max download size of %" PRId64 " bytes\n", limit); | 
 |     } | 
 |     return limit; | 
 | } | 
 |  | 
 | static int64_t get_sparse_limit(Transport* transport, 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(transport); | 
 |         } | 
 |         if (target_sparse_limit > 0) { | 
 |             limit = target_sparse_limit; | 
 |         } else { | 
 |             return 0; | 
 |         } | 
 |     } | 
 |  | 
 |     if (size > limit) { | 
 |         return limit; | 
 |     } | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | // Until we get lazy inode table init working in make_ext4fs, we need to | 
 | // erase partitions of type ext4 before flashing a filesystem so no stale | 
 | // inodes are left lying around.  Otherwise, e2fsck gets very upset. | 
 | static bool needs_erase(Transport* transport, const char* partition) { | 
 |     std::string partition_type; | 
 |     if (!fb_getvar(transport, std::string("partition-type:") + partition, &partition_type)) { | 
 |         return false; | 
 |     } | 
 |     return partition_type == "ext4"; | 
 | } | 
 |  | 
 | static int load_buf_fd(Transport* transport, int fd, struct fastboot_buffer* buf) { | 
 |     int64_t sz = get_file_size(fd); | 
 |     if (sz == -1) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     lseek64(fd, 0, SEEK_SET); | 
 |     int64_t limit = get_sparse_limit(transport, sz); | 
 |     if (limit) { | 
 |         sparse_file** s = load_sparse_files(fd, limit); | 
 |         if (s == nullptr) { | 
 |             return -1; | 
 |         } | 
 |         buf->type = FB_BUFFER_SPARSE; | 
 |         buf->data = s; | 
 |     } else { | 
 |         void* data = load_fd(fd, &sz); | 
 |         if (data == nullptr) return -1; | 
 |         buf->type = FB_BUFFER; | 
 |         buf->data = data; | 
 |         buf->sz = sz; | 
 |     } | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static int load_buf(Transport* transport, const char *fname, struct fastboot_buffer *buf) | 
 | { | 
 |     int fd; | 
 |  | 
 |     fd = open(fname, O_RDONLY | O_BINARY); | 
 |     if (fd < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     return load_buf_fd(transport, fd, buf); | 
 | } | 
 |  | 
 | static void flash_buf(const char *pname, struct fastboot_buffer *buf) | 
 | { | 
 |     sparse_file** s; | 
 |  | 
 |     switch (buf->type) { | 
 |         case FB_BUFFER_SPARSE: { | 
 |             std::vector<std::pair<sparse_file*, int64_t>> sparse_files; | 
 |             s = reinterpret_cast<sparse_file**>(buf->data); | 
 |             while (*s) { | 
 |                 int64_t sz = sparse_file_len(*s, true, false); | 
 |                 sparse_files.emplace_back(*s, sz); | 
 |                 ++s; | 
 |             } | 
 |  | 
 |             for (size_t i = 0; i < sparse_files.size(); ++i) { | 
 |                 const auto& pair = sparse_files[i]; | 
 |                 fb_queue_flash_sparse(pname, pair.first, pair.second, i + 1, sparse_files.size()); | 
 |             } | 
 |             break; | 
 |         } | 
 |  | 
 |         case FB_BUFFER: | 
 |             fb_queue_flash(pname, buf->data, buf->sz); | 
 |             break; | 
 |         default: | 
 |             die("unknown buffer type: %d", buf->type); | 
 |     } | 
 | } | 
 |  | 
 | static std::vector<std::string> get_suffixes(Transport* transport) { | 
 |     std::vector<std::string> suffixes; | 
 |     std::string suffix_list; | 
 |     if (!fb_getvar(transport, "slot-suffixes", &suffix_list)) { | 
 |         die("Could not get suffixes.\n"); | 
 |     } | 
 |     return android::base::Split(suffix_list, ","); | 
 | } | 
 |  | 
 | static std::string verify_slot(Transport* transport, const char *slot, bool allow_all) { | 
 |     if (strcmp(slot, "all") == 0) { | 
 |         if (allow_all) { | 
 |             return "all"; | 
 |         } else { | 
 |             std::vector<std::string> suffixes = get_suffixes(transport); | 
 |             if (!suffixes.empty()) { | 
 |                 return suffixes[0]; | 
 |             } else { | 
 |                 die("No known slots."); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     std::vector<std::string> suffixes = get_suffixes(transport); | 
 |  | 
 |     if (strcmp(slot, "other") == 0) { | 
 |         std::string current_slot; | 
 |         if (!fb_getvar(transport, "current-slot", ¤t_slot)) { | 
 |             die("Failed to identify current slot."); | 
 |         } | 
 |         if (!suffixes.empty()) { | 
 |             for (size_t i = 0; i < suffixes.size(); i++) { | 
 |                 if (current_slot == suffixes[i]) | 
 |                     return suffixes[(i+1)%suffixes.size()]; | 
 |             } | 
 |         } else { | 
 |             die("No known slots."); | 
 |         } | 
 |     } | 
 |  | 
 |     for (const std::string &suffix : suffixes) { | 
 |         if (suffix == slot) | 
 |             return slot; | 
 |     } | 
 |     fprintf(stderr, "Slot %s does not exist. supported slots are:\n", slot); | 
 |     for (const std::string &suffix : suffixes) { | 
 |         fprintf(stderr, "%s\n", suffix.c_str()); | 
 |     } | 
 |     exit(1); | 
 | } | 
 |  | 
 | static std::string verify_slot(Transport* transport, const char *slot) { | 
 |    return verify_slot(transport, slot, true); | 
 | } | 
 |  | 
 | static void do_for_partition(Transport* transport, const char *part, const char *slot, | 
 |                              std::function<void(const std::string&)> func, bool force_slot) { | 
 |     std::string has_slot; | 
 |     std::string current_slot; | 
 |  | 
 |     if (!fb_getvar(transport, std::string("has-slot:")+part, &has_slot)) { | 
 |         /* If has-slot is not supported, the answer is no. */ | 
 |         has_slot = "no"; | 
 |     } | 
 |     if (has_slot == "yes") { | 
 |         if (!slot || slot[0] == 0) { | 
 |             if (!fb_getvar(transport, "current-slot", ¤t_slot)) { | 
 |                 die("Failed to identify current slot.\n"); | 
 |             } | 
 |             func(std::string(part) + current_slot); | 
 |         } else { | 
 |             func(std::string(part) + slot); | 
 |         } | 
 |     } else { | 
 |         if (force_slot && slot && slot[0]) { | 
 |              fprintf(stderr, "Warning: %s does not support slots, and slot %s was requested.\n", | 
 |                      part, slot); | 
 |         } | 
 |         func(part); | 
 |     } | 
 | } | 
 |  | 
 | /* This function will find the real partition name given a base name, and a slot. If slot is NULL or | 
 |  * empty, it will use the current slot. If slot is "all", it will return a list of all possible | 
 |  * partition names. If force_slot is true, it will fail if a slot is specified, and the given | 
 |  * partition does not support slots. | 
 |  */ | 
 | static void do_for_partitions(Transport* transport, const char *part, const char *slot, | 
 |                               std::function<void(const std::string&)> func, bool force_slot) { | 
 |     std::string has_slot; | 
 |  | 
 |     if (slot && strcmp(slot, "all") == 0) { | 
 |         if (!fb_getvar(transport, std::string("has-slot:") + part, &has_slot)) { | 
 |             die("Could not check if partition %s has slot.", part); | 
 |         } | 
 |         if (has_slot == "yes") { | 
 |             std::vector<std::string> suffixes = get_suffixes(transport); | 
 |             for (std::string &suffix : suffixes) { | 
 |                 do_for_partition(transport, part, suffix.c_str(), func, force_slot); | 
 |             } | 
 |         } else { | 
 |             do_for_partition(transport, part, "", func, force_slot); | 
 |         } | 
 |     } else { | 
 |         do_for_partition(transport, part, slot, func, force_slot); | 
 |     } | 
 | } | 
 |  | 
 | static void do_flash(Transport* transport, const char* pname, const char* fname) { | 
 |     struct fastboot_buffer buf; | 
 |  | 
 |     if (load_buf(transport, fname, &buf)) { | 
 |         die("cannot load '%s'", fname); | 
 |     } | 
 |     flash_buf(pname, &buf); | 
 | } | 
 |  | 
 | static void do_update_signature(ZipArchiveHandle zip, char* fn) { | 
 |     int64_t sz; | 
 |     void* data = unzip_file(zip, fn, &sz); | 
 |     if (data == nullptr) return; | 
 |     fb_queue_download("signature", data, sz); | 
 |     fb_queue_command("signature", "installing signature"); | 
 | } | 
 |  | 
 | static void do_update(Transport* transport, const char* filename, const char* slot_override, bool erase_first) { | 
 |     queue_info_dump(); | 
 |  | 
 |     fb_queue_query_save("product", cur_product, sizeof(cur_product)); | 
 |  | 
 |     ZipArchiveHandle zip; | 
 |     int error = OpenArchive(filename, &zip); | 
 |     if (error != 0) { | 
 |         CloseArchive(zip); | 
 |         die("failed to open zip file '%s': %s", filename, ErrorCodeString(error)); | 
 |     } | 
 |  | 
 |     int64_t sz; | 
 |     void* data = unzip_file(zip, "android-info.txt", &sz); | 
 |     if (data == nullptr) { | 
 |         CloseArchive(zip); | 
 |         die("update package '%s' has no android-info.txt", filename); | 
 |     } | 
 |  | 
 |     setup_requirements(reinterpret_cast<char*>(data), sz); | 
 |  | 
 |     for (size_t i = 0; i < ARRAY_SIZE(images); ++i) { | 
 |         int fd = unzip_to_file(zip, images[i].img_name); | 
 |         if (fd == -1) { | 
 |             if (images[i].is_optional) { | 
 |                 continue; | 
 |             } | 
 |             CloseArchive(zip); | 
 |             exit(1); // unzip_to_file already explained why. | 
 |         } | 
 |         fastboot_buffer buf; | 
 |         int rc = load_buf_fd(transport, fd, &buf); | 
 |         if (rc) die("cannot load %s from flash", images[i].img_name); | 
 |  | 
 |         auto update = [&](const std::string &partition) { | 
 |             do_update_signature(zip, images[i].sig_name); | 
 |             if (erase_first && needs_erase(transport, partition.c_str())) { | 
 |                 fb_queue_erase(partition.c_str()); | 
 |             } | 
 |             flash_buf(partition.c_str(), &buf); | 
 |             /* not closing the fd here since the sparse code keeps the fd around | 
 |              * but hasn't mmaped data yet. The tmpfile will get cleaned up when the | 
 |              * program exits. | 
 |              */ | 
 |         }; | 
 |         do_for_partitions(transport, images[i].part_name, slot_override, update, false); | 
 |     } | 
 |  | 
 |     CloseArchive(zip); | 
 | } | 
 |  | 
 | static void do_send_signature(char* fn) { | 
 |     char* xtn = strrchr(fn, '.'); | 
 |     if (!xtn) return; | 
 |  | 
 |     if (strcmp(xtn, ".img")) return; | 
 |  | 
 |     strcpy(xtn, ".sig"); | 
 |  | 
 |     int64_t sz; | 
 |     void* data = load_file(fn, &sz); | 
 |     strcpy(xtn, ".img"); | 
 |     if (data == nullptr) return; | 
 |     fb_queue_download("signature", data, sz); | 
 |     fb_queue_command("signature", "installing signature"); | 
 | } | 
 |  | 
 | static void do_flashall(Transport* transport, const char* slot_override, int erase_first) { | 
 |     queue_info_dump(); | 
 |  | 
 |     fb_queue_query_save("product", cur_product, sizeof(cur_product)); | 
 |  | 
 |     char* fname = find_item("info", product); | 
 |     if (fname == nullptr) die("cannot find android-info.txt"); | 
 |  | 
 |     int64_t sz; | 
 |     void* data = load_file(fname, &sz); | 
 |     if (data == nullptr) die("could not load android-info.txt: %s", strerror(errno)); | 
 |  | 
 |     setup_requirements(reinterpret_cast<char*>(data), sz); | 
 |  | 
 |     for (size_t i = 0; i < ARRAY_SIZE(images); i++) { | 
 |         fname = find_item(images[i].part_name, product); | 
 |         fastboot_buffer buf; | 
 |         if (load_buf(transport, fname, &buf)) { | 
 |             if (images[i].is_optional) | 
 |                 continue; | 
 |             die("could not load %s\n", images[i].img_name); | 
 |         } | 
 |  | 
 |         auto flashall = [&](const std::string &partition) { | 
 |             do_send_signature(fname); | 
 |             if (erase_first && needs_erase(transport, partition.c_str())) { | 
 |                 fb_queue_erase(partition.c_str()); | 
 |             } | 
 |             flash_buf(partition.c_str(), &buf); | 
 |         }; | 
 |         do_for_partitions(transport, images[i].part_name, slot_override, flashall, false); | 
 |     } | 
 | } | 
 |  | 
 | #define skip(n) do { argc -= (n); argv += (n); } while (0) | 
 | #define require(n) do { if (argc < (n)) {usage(); exit(1);}} while (0) | 
 |  | 
 | static int do_bypass_unlock_command(int argc, char **argv) | 
 | { | 
 |     if (argc <= 2) return 0; | 
 |     skip(2); | 
 |  | 
 |     /* | 
 |      * Process unlock_bootloader, we have to load the message file | 
 |      * and send that to the remote device. | 
 |      */ | 
 |     require(1); | 
 |  | 
 |     int64_t sz; | 
 |     void* data = load_file(*argv, &sz); | 
 |     if (data == nullptr) die("could not load '%s': %s", *argv, strerror(errno)); | 
 |     fb_queue_download("unlock_message", data, sz); | 
 |     fb_queue_command("flashing unlock_bootloader", "unlocking bootloader"); | 
 |     skip(1); | 
 |     return 0; | 
 | } | 
 |  | 
 | static int do_oem_command(int argc, char **argv) | 
 | { | 
 |     char command[256]; | 
 |     if (argc <= 1) return 0; | 
 |  | 
 |     command[0] = 0; | 
 |     while(1) { | 
 |         strcat(command,*argv); | 
 |         skip(1); | 
 |         if(argc == 0) break; | 
 |         strcat(command," "); | 
 |     } | 
 |  | 
 |     fb_queue_command(command,""); | 
 |     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; | 
 | } | 
 |  | 
 | static void fb_perform_format(Transport* transport, | 
 |                               const char* partition, int skip_if_not_supported, | 
 |                               const char* type_override, const char* size_override) { | 
 |     std::string partition_type, partition_size; | 
 |  | 
 |     struct fastboot_buffer buf; | 
 |     const char* errMsg = nullptr; | 
 |     const struct fs_generator* gen = nullptr; | 
 |     int fd; | 
 |  | 
 |     unsigned int limit = INT_MAX; | 
 |     if (target_sparse_limit > 0 && target_sparse_limit < limit) { | 
 |         limit = target_sparse_limit; | 
 |     } | 
 |     if (sparse_limit > 0 && sparse_limit < limit) { | 
 |         limit = sparse_limit; | 
 |     } | 
 |  | 
 |     if (!fb_getvar(transport, std::string("partition-type:") + partition, &partition_type)) { | 
 |         errMsg = "Can't determine partition type.\n"; | 
 |         goto failed; | 
 |     } | 
 |     if (type_override) { | 
 |         if (partition_type != type_override) { | 
 |             fprintf(stderr, "Warning: %s type is %s, but %s was requested for formatting.\n", | 
 |                     partition, partition_type.c_str(), type_override); | 
 |         } | 
 |         partition_type = type_override; | 
 |     } | 
 |  | 
 |     if (!fb_getvar(transport, std::string("partition-size:") + partition, &partition_size)) { | 
 |         errMsg = "Unable to get partition size\n"; | 
 |         goto failed; | 
 |     } | 
 |     if (size_override) { | 
 |         if (partition_size != size_override) { | 
 |             fprintf(stderr, "Warning: %s size is %s, but %s was requested for formatting.\n", | 
 |                     partition, partition_size.c_str(), size_override); | 
 |         } | 
 |         partition_size = size_override; | 
 |     } | 
 |     // Some bootloaders (angler, for example), send spurious leading whitespace. | 
 |     partition_size = android::base::Trim(partition_size); | 
 |     // Some bootloaders (hammerhead, for example) use implicit hex. | 
 |     // This code used to use strtol with base 16. | 
 |     if (!android::base::StartsWith(partition_size, "0x")) partition_size = "0x" + partition_size; | 
 |  | 
 |     gen = fs_get_generator(partition_type); | 
 |     if (!gen) { | 
 |         if (skip_if_not_supported) { | 
 |             fprintf(stderr, "Erase successful, but not automatically formatting.\n"); | 
 |             fprintf(stderr, "File system type %s not supported.\n", partition_type.c_str()); | 
 |             return; | 
 |         } | 
 |         fprintf(stderr, "Formatting is not supported for file system with type '%s'.\n", | 
 |                 partition_type.c_str()); | 
 |         return; | 
 |     } | 
 |  | 
 |     int64_t size; | 
 |     if (!android::base::ParseInt(partition_size.c_str(), &size)) { | 
 |         fprintf(stderr, "Couldn't parse partition size '%s'.\n", partition_size.c_str()); | 
 |         return; | 
 |     } | 
 |  | 
 |     fd = fileno(tmpfile()); | 
 |     if (fs_generator_generate(gen, fd, size)) { | 
 |         fprintf(stderr, "Cannot generate image: %s\n", strerror(errno)); | 
 |         close(fd); | 
 |         return; | 
 |     } | 
 |  | 
 |     if (load_buf_fd(transport, fd, &buf)) { | 
 |         fprintf(stderr, "Cannot read image: %s\n", strerror(errno)); | 
 |         close(fd); | 
 |         return; | 
 |     } | 
 |     flash_buf(partition, &buf); | 
 |     return; | 
 |  | 
 | failed: | 
 |     if (skip_if_not_supported) { | 
 |         fprintf(stderr, "Erase successful, but not automatically formatting.\n"); | 
 |         if (errMsg) fprintf(stderr, "%s", errMsg); | 
 |     } | 
 |     fprintf(stderr,"FAILED (%s)\n", fb_get_error()); | 
 | } | 
 |  | 
 | int main(int argc, char **argv) | 
 | { | 
 |     bool wants_wipe = false; | 
 |     bool wants_reboot = false; | 
 |     bool wants_reboot_bootloader = false; | 
 |     bool wants_set_active = false; | 
 |     bool erase_first = true; | 
 |     void *data; | 
 |     int64_t sz; | 
 |     int longindex; | 
 |     std::string slot_override; | 
 |     std::string next_active; | 
 |  | 
 |     const struct option longopts[] = { | 
 |         {"base", required_argument, 0, 'b'}, | 
 |         {"kernel_offset", required_argument, 0, 'k'}, | 
 |         {"kernel-offset", required_argument, 0, 'k'}, | 
 |         {"page_size", required_argument, 0, 'n'}, | 
 |         {"page-size", required_argument, 0, 'n'}, | 
 |         {"ramdisk_offset", required_argument, 0, 'r'}, | 
 |         {"ramdisk-offset", required_argument, 0, 'r'}, | 
 |         {"tags_offset", required_argument, 0, 't'}, | 
 |         {"tags-offset", required_argument, 0, 't'}, | 
 |         {"help", no_argument, 0, 'h'}, | 
 |         {"unbuffered", no_argument, 0, 0}, | 
 |         {"version", no_argument, 0, 0}, | 
 |         {"slot", required_argument, 0, 0}, | 
 |         {"set_active", optional_argument, 0, 'a'}, | 
 |         {"set-active", optional_argument, 0, 'a'}, | 
 |         {0, 0, 0, 0} | 
 |     }; | 
 |  | 
 |     serial = getenv("ANDROID_SERIAL"); | 
 |  | 
 |     while (1) { | 
 |         int c = getopt_long(argc, argv, "wub:k:n:r:t:s:S:lp:c:i:m:ha::", longopts, &longindex); | 
 |         if (c < 0) { | 
 |             break; | 
 |         } | 
 |         /* Alphabetical cases */ | 
 |         switch (c) { | 
 |         case 'a': | 
 |             wants_set_active = true; | 
 |             if (optarg) | 
 |                 next_active = optarg; | 
 |             break; | 
 |         case 'b': | 
 |             base_addr = strtoul(optarg, 0, 16); | 
 |             break; | 
 |         case 'c': | 
 |             cmdline = optarg; | 
 |             break; | 
 |         case 'h': | 
 |             usage(); | 
 |             return 1; | 
 |         case 'i': { | 
 |                 char *endptr = nullptr; | 
 |                 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 'k': | 
 |             kernel_offset = strtoul(optarg, 0, 16); | 
 |             break; | 
 |         case 'l': | 
 |             long_listing = 1; | 
 |             break; | 
 |         case 'n': | 
 |             page_size = (unsigned)strtoul(optarg, nullptr, 0); | 
 |             if (!page_size) die("invalid page size"); | 
 |             break; | 
 |         case 'p': | 
 |             product = optarg; | 
 |             break; | 
 |         case 'r': | 
 |             ramdisk_offset = strtoul(optarg, 0, 16); | 
 |             break; | 
 |         case 't': | 
 |             tags_offset = strtoul(optarg, 0, 16); | 
 |             break; | 
 |         case 's': | 
 |             serial = optarg; | 
 |             break; | 
 |         case 'S': | 
 |             sparse_limit = parse_num(optarg); | 
 |             if (sparse_limit < 0) { | 
 |                     die("invalid sparse limit"); | 
 |             } | 
 |             break; | 
 |         case 'u': | 
 |             erase_first = false; | 
 |             break; | 
 |         case 'w': | 
 |             wants_wipe = true; | 
 |             break; | 
 |         case '?': | 
 |             return 1; | 
 |         case 0: | 
 |             if (strcmp("unbuffered", longopts[longindex].name) == 0) { | 
 |                 setvbuf(stdout, nullptr, _IONBF, 0); | 
 |                 setvbuf(stderr, nullptr, _IONBF, 0); | 
 |             } else if (strcmp("version", longopts[longindex].name) == 0) { | 
 |                 fprintf(stdout, "fastboot version %s\n", FASTBOOT_REVISION); | 
 |                 return 0; | 
 |             } else if (strcmp("slot", longopts[longindex].name) == 0) { | 
 |                 slot_override = std::string(optarg); | 
 |             } | 
 |             break; | 
 |         default: | 
 |             abort(); | 
 |         } | 
 |     } | 
 |  | 
 |     argc -= optind; | 
 |     argv += optind; | 
 |  | 
 |     if (argc == 0 && !wants_wipe && !wants_set_active) { | 
 |         usage(); | 
 |         return 1; | 
 |     } | 
 |  | 
 |     if (argc > 0 && !strcmp(*argv, "devices")) { | 
 |         skip(1); | 
 |         list_devices(); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     if (argc > 0 && !strcmp(*argv, "help")) { | 
 |         usage(); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     Transport* transport = open_device(); | 
 |     if (transport == nullptr) { | 
 |         return 1; | 
 |     } | 
 |  | 
 |     if (slot_override != "") | 
 |         slot_override = verify_slot(transport, slot_override.c_str()); | 
 |     if (next_active != "") | 
 |         next_active = verify_slot(transport, next_active.c_str(), false); | 
 |  | 
 |     if (wants_set_active) { | 
 |         if (next_active == "") { | 
 |             if (slot_override == "") { | 
 |                 wants_set_active = false; | 
 |             } else { | 
 |                 next_active = verify_slot(transport, slot_override.c_str(), false); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     while (argc > 0) { | 
 |         if (!strcmp(*argv, "getvar")) { | 
 |             require(2); | 
 |             fb_queue_display(argv[1], argv[1]); | 
 |             skip(2); | 
 |         } else if(!strcmp(*argv, "erase")) { | 
 |             require(2); | 
 |  | 
 |             auto erase = [&](const std::string &partition) { | 
 |                 std::string partition_type; | 
 |                 if (fb_getvar(transport, std::string("partition-type:") + argv[1], &partition_type) && | 
 |                     fs_get_generator(partition_type) != nullptr) { | 
 |                     fprintf(stderr, "******** Did you mean to fastboot format this %s partition?\n", | 
 |                             partition_type.c_str()); | 
 |                 } | 
 |  | 
 |                 fb_queue_erase(partition.c_str()); | 
 |             }; | 
 |             do_for_partitions(transport, argv[1], slot_override.c_str(), erase, true); | 
 |             skip(2); | 
 |         } else if(!strncmp(*argv, "format", strlen("format"))) { | 
 |             char *overrides; | 
 |             char *type_override = nullptr; | 
 |             char *size_override = nullptr; | 
 |             require(2); | 
 |             /* | 
 |              * Parsing for: "format[:[type][:[size]]]" | 
 |              * Some valid things: | 
 |              *  - select ontly the size, and leave default fs type: | 
 |              *    format::0x4000000 userdata | 
 |              *  - default fs type and size: | 
 |              *    format userdata | 
 |              *    format:: userdata | 
 |              */ | 
 |             overrides = strchr(*argv, ':'); | 
 |             if (overrides) { | 
 |                 overrides++; | 
 |                 size_override = strchr(overrides, ':'); | 
 |                 if (size_override) { | 
 |                     size_override[0] = '\0'; | 
 |                     size_override++; | 
 |                 } | 
 |                 type_override = overrides; | 
 |             } | 
 |             if (type_override && !type_override[0]) type_override = nullptr; | 
 |             if (size_override && !size_override[0]) size_override = nullptr; | 
 |  | 
 |             auto format = [&](const std::string &partition) { | 
 |                 if (erase_first && needs_erase(transport, partition.c_str())) { | 
 |                     fb_queue_erase(partition.c_str()); | 
 |                 } | 
 |                 fb_perform_format(transport, partition.c_str(), 0, type_override, size_override); | 
 |             }; | 
 |             do_for_partitions(transport, argv[1], slot_override.c_str(), format, true); | 
 |             skip(2); | 
 |         } else if(!strcmp(*argv, "signature")) { | 
 |             require(2); | 
 |             data = load_file(argv[1], &sz); | 
 |             if (data == nullptr) die("could not load '%s': %s", argv[1], strerror(errno)); | 
 |             if (sz != 256) die("signature must be 256 bytes"); | 
 |             fb_queue_download("signature", data, sz); | 
 |             fb_queue_command("signature", "installing signature"); | 
 |             skip(2); | 
 |         } else if(!strcmp(*argv, "reboot")) { | 
 |             wants_reboot = true; | 
 |             skip(1); | 
 |             if (argc > 0) { | 
 |                 if (!strcmp(*argv, "bootloader")) { | 
 |                     wants_reboot = false; | 
 |                     wants_reboot_bootloader = true; | 
 |                     skip(1); | 
 |                 } | 
 |             } | 
 |             require(0); | 
 |         } else if(!strcmp(*argv, "reboot-bootloader")) { | 
 |             wants_reboot_bootloader = true; | 
 |             skip(1); | 
 |         } else if (!strcmp(*argv, "continue")) { | 
 |             fb_queue_command("continue", "resuming boot"); | 
 |             skip(1); | 
 |         } else if(!strcmp(*argv, "boot")) { | 
 |             char *kname = 0; | 
 |             char *rname = 0; | 
 |             char *sname = 0; | 
 |             skip(1); | 
 |             if (argc > 0) { | 
 |                 kname = argv[0]; | 
 |                 skip(1); | 
 |             } | 
 |             if (argc > 0) { | 
 |                 rname = argv[0]; | 
 |                 skip(1); | 
 |             } | 
 |             if (argc > 0) { | 
 |                 sname = argv[0]; | 
 |                 skip(1); | 
 |             } | 
 |             data = load_bootable_image(kname, rname, sname, &sz, cmdline); | 
 |             if (data == 0) return 1; | 
 |             fb_queue_download("boot.img", data, sz); | 
 |             fb_queue_command("boot", "booting"); | 
 |         } else if(!strcmp(*argv, "flash")) { | 
 |             char *pname = argv[1]; | 
 |             char *fname = 0; | 
 |             require(2); | 
 |             if (argc > 2) { | 
 |                 fname = argv[2]; | 
 |                 skip(3); | 
 |             } else { | 
 |                 fname = find_item(pname, product); | 
 |                 skip(2); | 
 |             } | 
 |             if (fname == 0) die("cannot determine image filename for '%s'", pname); | 
 |  | 
 |             auto flash = [&](const std::string &partition) { | 
 |                 if (erase_first && needs_erase(transport, partition.c_str())) { | 
 |                     fb_queue_erase(partition.c_str()); | 
 |                 } | 
 |                 do_flash(transport, partition.c_str(), fname); | 
 |             }; | 
 |             do_for_partitions(transport, pname, slot_override.c_str(), flash, true); | 
 |         } else if(!strcmp(*argv, "flash:raw")) { | 
 |             char *kname = argv[2]; | 
 |             char *rname = 0; | 
 |             char *sname = 0; | 
 |             require(3); | 
 |             skip(3); | 
 |             if (argc > 0) { | 
 |                 rname = argv[0]; | 
 |                 skip(1); | 
 |             } | 
 |             if (argc > 0) { | 
 |                 sname = argv[0]; | 
 |                 skip(1); | 
 |             } | 
 |             data = load_bootable_image(kname, rname, sname, &sz, cmdline); | 
 |             if (data == 0) die("cannot load bootable image"); | 
 |             auto flashraw = [&](const std::string &partition) { | 
 |                 fb_queue_flash(partition.c_str(), data, sz); | 
 |             }; | 
 |             do_for_partitions(transport, argv[1], slot_override.c_str(), flashraw, true); | 
 |         } else if(!strcmp(*argv, "flashall")) { | 
 |             skip(1); | 
 |             do_flashall(transport, slot_override.c_str(), erase_first); | 
 |             wants_reboot = true; | 
 |         } else if(!strcmp(*argv, "update")) { | 
 |             if (argc > 1) { | 
 |                 do_update(transport, argv[1], slot_override.c_str(), erase_first); | 
 |                 skip(2); | 
 |             } else { | 
 |                 do_update(transport, "update.zip", slot_override.c_str(), erase_first); | 
 |                 skip(1); | 
 |             } | 
 |             wants_reboot = 1; | 
 |         } else if(!strcmp(*argv, "set_active")) { | 
 |             require(2); | 
 |             std::string slot = verify_slot(transport, argv[1], false); | 
 |             fb_set_active(slot.c_str()); | 
 |             skip(2); | 
 |         } else if(!strcmp(*argv, "oem")) { | 
 |             argc = do_oem_command(argc, argv); | 
 |         } else if(!strcmp(*argv, "flashing")) { | 
 |             if (argc == 2 && (!strcmp(*(argv+1), "unlock") || | 
 |                               !strcmp(*(argv+1), "lock") || | 
 |                               !strcmp(*(argv+1), "unlock_critical") || | 
 |                               !strcmp(*(argv+1), "lock_critical") || | 
 |                               !strcmp(*(argv+1), "get_unlock_ability") || | 
 |                               !strcmp(*(argv+1), "get_unlock_bootloader_nonce") || | 
 |                               !strcmp(*(argv+1), "lock_bootloader"))) { | 
 |                 argc = do_oem_command(argc, argv); | 
 |             } else | 
 |             if (argc == 3 && !strcmp(*(argv+1), "unlock_bootloader")) { | 
 |                 argc = do_bypass_unlock_command(argc, argv); | 
 |             } else { | 
 |               usage(); | 
 |               return 1; | 
 |             } | 
 |         } else { | 
 |             usage(); | 
 |             return 1; | 
 |         } | 
 |     } | 
 |  | 
 |     if (wants_wipe) { | 
 |         fprintf(stderr, "wiping userdata...\n"); | 
 |         fb_queue_erase("userdata"); | 
 |         fb_perform_format(transport, "userdata", 1, nullptr, nullptr); | 
 |  | 
 |         std::string cache_type; | 
 |         if (fb_getvar(transport, "partition-type:cache", &cache_type) && !cache_type.empty()) { | 
 |             fprintf(stderr, "wiping cache...\n"); | 
 |             fb_queue_erase("cache"); | 
 |             fb_perform_format(transport, "cache", 1, nullptr, nullptr); | 
 |         } | 
 |     } | 
 |     if (wants_set_active) { | 
 |         fb_set_active(next_active.c_str()); | 
 |     } | 
 |     if (wants_reboot) { | 
 |         fb_queue_reboot(); | 
 |         fb_queue_wait_for_disconnect(); | 
 |     } else if (wants_reboot_bootloader) { | 
 |         fb_queue_command("reboot-bootloader", "rebooting into bootloader"); | 
 |         fb_queue_wait_for_disconnect(); | 
 |     } | 
 |  | 
 |     return fb_execute_queue(transport) ? EXIT_FAILURE : EXIT_SUCCESS; | 
 | } |