| /* |
| ** Copyright 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 <fcntl.h> |
| #include <selinux/android.h> |
| #include <selinux/avc.h> |
| #include <sys/capability.h> |
| #include <sys/fsuid.h> |
| #include <sys/prctl.h> |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| |
| #include <android-base/logging.h> |
| #include <cutils/fs.h> |
| #include <cutils/log.h> // TODO: Move everything to base::logging. |
| #include <cutils/properties.h> |
| #include <cutils/sockets.h> |
| #include <private/android_filesystem_config.h> |
| |
| #include <commands.h> |
| #include <globals.h> |
| #include <installd_constants.h> |
| #include <installd_deps.h> // Need to fill in requirements of commands. |
| #include <utils.h> |
| |
| #ifndef LOG_TAG |
| #define LOG_TAG "installd" |
| #endif |
| #define SOCKET_PATH "installd" |
| |
| #define BUFFER_MAX 1024 /* input buffer for commands */ |
| #define TOKEN_MAX 16 /* max number of arguments in buffer */ |
| #define REPLY_MAX 256 /* largest reply allowed */ |
| |
| namespace android { |
| namespace installd { |
| |
| // Check that installd-deps sizes match cutils sizes. |
| static_assert(kPropertyKeyMax == PROPERTY_KEY_MAX, "Size mismatch."); |
| static_assert(kPropertyValueMax == PROPERTY_VALUE_MAX, "Size mismatch."); |
| |
| //////////////////////// |
| // Plug-in functions. // |
| //////////////////////// |
| |
| int get_property(const char *key, char *value, const char *default_value) { |
| return property_get(key, value, default_value); |
| } |
| |
| // Compute the output path of |
| bool calculate_oat_file_path(char path[PKG_PATH_MAX], |
| const char *oat_dir, |
| const char *apk_path, |
| const char *instruction_set) { |
| const char *file_name_start; |
| const char *file_name_end; |
| |
| file_name_start = strrchr(apk_path, '/'); |
| if (file_name_start == NULL) { |
| ALOGE("apk_path '%s' has no '/'s in it\n", apk_path); |
| return false; |
| } |
| file_name_end = strrchr(apk_path, '.'); |
| if (file_name_end < file_name_start) { |
| ALOGE("apk_path '%s' has no extension\n", apk_path); |
| return false; |
| } |
| |
| // Calculate file_name |
| int file_name_len = file_name_end - file_name_start - 1; |
| char file_name[file_name_len + 1]; |
| memcpy(file_name, file_name_start + 1, file_name_len); |
| file_name[file_name_len] = '\0'; |
| |
| // <apk_parent_dir>/oat/<isa>/<file_name>.odex |
| snprintf(path, PKG_PATH_MAX, "%s/%s/%s.odex", oat_dir, instruction_set, file_name); |
| return true; |
| } |
| |
| /* |
| * Computes the odex file for the given apk_path and instruction_set. |
| * /system/framework/whatever.jar -> /system/framework/oat/<isa>/whatever.odex |
| * |
| * Returns false if it failed to determine the odex file path. |
| */ |
| bool calculate_odex_file_path(char path[PKG_PATH_MAX], |
| const char *apk_path, |
| const char *instruction_set) { |
| if (strlen(apk_path) + strlen("oat/") + strlen(instruction_set) |
| + strlen("/") + strlen("odex") + 1 > PKG_PATH_MAX) { |
| ALOGE("apk_path '%s' may be too long to form odex file path.\n", apk_path); |
| return false; |
| } |
| |
| strcpy(path, apk_path); |
| char *end = strrchr(path, '/'); |
| if (end == NULL) { |
| ALOGE("apk_path '%s' has no '/'s in it?!\n", apk_path); |
| return false; |
| } |
| const char *apk_end = apk_path + (end - path); // strrchr(apk_path, '/'); |
| |
| strcpy(end + 1, "oat/"); // path = /system/framework/oat/\0 |
| strcat(path, instruction_set); // path = /system/framework/oat/<isa>\0 |
| strcat(path, apk_end); // path = /system/framework/oat/<isa>/whatever.jar\0 |
| end = strrchr(path, '.'); |
| if (end == NULL) { |
| ALOGE("apk_path '%s' has no extension.\n", apk_path); |
| return false; |
| } |
| strcpy(end + 1, "odex"); |
| return true; |
| } |
| |
| bool create_cache_path(char path[PKG_PATH_MAX], |
| const char *src, |
| const char *instruction_set) { |
| /* demand that we are an absolute path */ |
| if ((src == nullptr) || (src[0] != '/') || strstr(src,"..")) { |
| return false; |
| } |
| |
| size_t srclen = strlen(src); |
| |
| if (srclen > PKG_PATH_MAX) { // XXX: PKG_NAME_MAX? |
| return false; |
| } |
| |
| size_t dstlen = |
| android_data_dir.len + |
| strlen(DALVIK_CACHE) + |
| 1 + |
| strlen(instruction_set) + |
| srclen + |
| strlen(DALVIK_CACHE_POSTFIX) + 2; |
| |
| if (dstlen > PKG_PATH_MAX) { |
| return false; |
| } |
| |
| sprintf(path,"%s%s/%s/%s", |
| android_data_dir.path, |
| DALVIK_CACHE, |
| instruction_set, |
| src + 1 /* skip the leading / */); |
| |
| char* tmp = |
| path + |
| android_data_dir.len + |
| strlen(DALVIK_CACHE) + |
| 1 + |
| strlen(instruction_set) + 1; |
| |
| for(; *tmp; tmp++) { |
| if (*tmp == '/') { |
| *tmp = '@'; |
| } |
| } |
| |
| strcat(path, DALVIK_CACHE_POSTFIX); |
| return true; |
| } |
| |
| |
| static char* parse_null(char* arg) { |
| if (strcmp(arg, "!") == 0) { |
| return nullptr; |
| } else { |
| return arg; |
| } |
| } |
| |
| static int do_ping(char **arg ATTRIBUTE_UNUSED, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| return 0; |
| } |
| |
| static int do_create_app_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| /* const char *uuid, const char *pkgname, userid_t userid, int flags, |
| appid_t appid, const char* seinfo, int target_sdk_version */ |
| return create_app_data(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3]), |
| atoi(arg[4]), arg[5], atoi(arg[6])); |
| } |
| |
| static int do_restorecon_app_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| /* const char* uuid, const char* pkgName, userid_t userid, int flags, |
| appid_t appid, const char* seinfo */ |
| return restorecon_app_data(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3]), atoi(arg[4]), arg[5]); |
| } |
| |
| static int do_migrate_app_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| /* const char *uuid, const char *pkgname, userid_t userid, int flags */ |
| return migrate_app_data(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3])); |
| } |
| |
| static int do_clear_app_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| /* const char *uuid, const char *pkgname, userid_t userid, int flags, ino_t ce_data_inode */ |
| return clear_app_data(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3]), atol(arg[4])); |
| } |
| |
| static int do_destroy_app_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| /* const char *uuid, const char *pkgname, userid_t userid, int flags, ino_t ce_data_inode */ |
| return destroy_app_data(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3]), atol(arg[4])); |
| } |
| |
| // We use otapreopt_chroot to get into the chroot. |
| static constexpr const char* kOtaPreopt = "/system/bin/otapreopt_chroot"; |
| |
| static int do_ota_dexopt(const char* args[DEXOPT_PARAM_COUNT], |
| char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| // Time to fork and run otapreopt. |
| |
| // Check that the tool exists. |
| struct stat s; |
| if (stat(kOtaPreopt, &s) != 0) { |
| LOG(ERROR) << "Otapreopt chroot tool not found."; |
| return -1; |
| } |
| |
| pid_t pid = fork(); |
| if (pid == 0) { |
| const char* argv[1 + DEXOPT_PARAM_COUNT + 1]; |
| argv[0] = kOtaPreopt; |
| |
| for (size_t i = 0; i < DEXOPT_PARAM_COUNT; ++i) { |
| argv[i + 1] = args[i]; |
| } |
| |
| argv[DEXOPT_PARAM_COUNT + 1] = nullptr; |
| |
| execv(argv[0], (char * const *)argv); |
| PLOG(ERROR) << "execv(OTAPREOPT_CHROOT) failed"; |
| exit(99); |
| } else { |
| int res = wait_child(pid); |
| if (res == 0) { |
| ALOGV("DexInv: --- END OTAPREOPT (success) ---\n"); |
| } else { |
| ALOGE("DexInv: --- END OTAPREOPT --- status=0x%04x, process failed\n", res); |
| } |
| return res; |
| } |
| } |
| |
| static int do_regular_dexopt(const char* args[DEXOPT_PARAM_COUNT], |
| char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| return dexopt(args); |
| } |
| |
| using DexoptFn = int (*)(const char* args[DEXOPT_PARAM_COUNT], |
| char reply[REPLY_MAX]); |
| |
| static int do_dexopt(char **arg, char reply[REPLY_MAX]) |
| { |
| const char* args[DEXOPT_PARAM_COUNT]; |
| for (size_t i = 0; i < DEXOPT_PARAM_COUNT; ++i) { |
| CHECK(arg[i] != nullptr); |
| args[i] = arg[i]; |
| } |
| |
| int dexopt_flags = atoi(arg[6]); |
| DexoptFn dexopt_fn; |
| if ((dexopt_flags & DEXOPT_OTA) != 0) { |
| dexopt_fn = do_ota_dexopt; |
| } else { |
| dexopt_fn = do_regular_dexopt; |
| } |
| return dexopt_fn(args, reply); |
| } |
| |
| static int do_merge_profiles(char **arg, char reply[REPLY_MAX]) |
| { |
| uid_t uid = static_cast<uid_t>(atoi(arg[0])); |
| const char* pkgname = arg[1]; |
| if (merge_profiles(uid, pkgname)) { |
| strncpy(reply, "true", REPLY_MAX); |
| } else { |
| strncpy(reply, "false", REPLY_MAX); |
| } |
| return 0; |
| } |
| |
| static int do_dump_profiles(char **arg, char reply[REPLY_MAX]) |
| { |
| uid_t uid = static_cast<uid_t>(atoi(arg[0])); |
| const char* pkgname = arg[1]; |
| const char* dex_files = arg[2]; |
| if (dump_profile(uid, pkgname, dex_files)) { |
| strncpy(reply, "true", REPLY_MAX); |
| } else { |
| strncpy(reply, "false", REPLY_MAX); |
| } |
| return 0; |
| } |
| |
| static int do_mark_boot_complete(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| return mark_boot_complete(arg[0] /* instruction set */); |
| } |
| |
| static int do_rm_dex(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| return rm_dex(arg[0], arg[1]); /* pkgname, instruction_set */ |
| } |
| |
| static int do_free_cache(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) /* TODO int:free_size */ |
| { |
| return free_cache(parse_null(arg[0]), (int64_t)atoll(arg[1])); /* uuid, free_size */ |
| } |
| |
| static int do_get_app_size(char **arg, char reply[REPLY_MAX]) { |
| int64_t codesize = 0; |
| int64_t datasize = 0; |
| int64_t cachesize = 0; |
| int64_t asecsize = 0; |
| int res = 0; |
| |
| /* const char *uuid, const char *pkgname, int userid, int flags, ino_t ce_data_inode, |
| const char* code_path */ |
| res = get_app_size(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3]), atol(arg[4]), |
| arg[5], &codesize, &datasize, &cachesize, &asecsize); |
| |
| /* |
| * Each int64_t can take up 22 characters printed out. Make sure it |
| * doesn't go over REPLY_MAX in the future. |
| */ |
| snprintf(reply, REPLY_MAX, "%" PRId64 " %" PRId64 " %" PRId64 " %" PRId64, |
| codesize, datasize, cachesize, asecsize); |
| return res; |
| } |
| |
| static int do_get_app_data_inode(char **arg, char reply[REPLY_MAX]) { |
| ino_t inode = 0; |
| int res = 0; |
| |
| /* const char *uuid, const char *pkgname, int userid, int flags */ |
| res = get_app_data_inode(parse_null(arg[0]), arg[1], atoi(arg[2]), atoi(arg[3]), &inode); |
| |
| snprintf(reply, REPLY_MAX, "%" PRId64, (int64_t) inode); |
| return res; |
| } |
| |
| static int do_move_complete_app(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| /* const char* from_uuid, const char *to_uuid, const char *package_name, |
| const char *data_app_name, appid_t appid, const char* seinfo, |
| int target_sdk_version */ |
| return move_complete_app(parse_null(arg[0]), parse_null(arg[1]), arg[2], arg[3], |
| atoi(arg[4]), arg[5], atoi(arg[6])); |
| } |
| |
| static int do_create_user_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* const char *uuid, userid_t userid, int user_serial, int flags */ |
| return create_user_data(parse_null(arg[0]), atoi(arg[1]), atoi(arg[2]), atoi(arg[3])); |
| } |
| |
| static int do_destroy_user_data(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* const char *uuid, userid_t userid, int flags */ |
| return destroy_user_data(parse_null(arg[0]), atoi(arg[1]), atoi(arg[2])); |
| } |
| |
| static int do_linklib(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| return linklib(parse_null(arg[0]), arg[1], arg[2], atoi(arg[3])); |
| } |
| |
| static int do_idmap(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| return idmap(arg[0], arg[1], atoi(arg[2])); |
| } |
| |
| static int do_create_oat_dir(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* oat_dir, instruction_set */ |
| return create_oat_dir(arg[0], arg[1]); |
| } |
| |
| static int do_rm_package_dir(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* oat_dir */ |
| return rm_package_dir(arg[0]); |
| } |
| |
| static int do_clear_app_profiles(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* package_name */ |
| return clear_app_profiles(arg[0]); |
| } |
| |
| static int do_destroy_app_profiles(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* package_name */ |
| return destroy_app_profiles(arg[0]); |
| } |
| |
| static int do_link_file(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) |
| { |
| /* relative_path, from_base, to_base */ |
| return link_file(arg[0], arg[1], arg[2]); |
| } |
| |
| static int do_move_ab(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| // apk_path, instruction_set, oat_dir |
| return move_ab(arg[0], arg[1], arg[2]); |
| } |
| |
| static int do_delete_odex(char **arg, char reply[REPLY_MAX] ATTRIBUTE_UNUSED) { |
| // apk_path, instruction_set, oat_dir |
| return delete_odex(arg[0], arg[1], arg[2]) ? 0 : -1; |
| } |
| |
| struct cmdinfo { |
| const char *name; |
| unsigned numargs; |
| int (*func)(char **arg, char reply[REPLY_MAX]); |
| }; |
| |
| struct cmdinfo cmds[] = { |
| { "ping", 0, do_ping }, |
| |
| { "create_app_data", 7, do_create_app_data }, |
| { "restorecon_app_data", 6, do_restorecon_app_data }, |
| { "migrate_app_data", 4, do_migrate_app_data }, |
| { "clear_app_data", 5, do_clear_app_data }, |
| { "destroy_app_data", 5, do_destroy_app_data }, |
| { "move_complete_app", 7, do_move_complete_app }, |
| { "get_app_size", 6, do_get_app_size }, |
| { "get_app_data_inode", 4, do_get_app_data_inode }, |
| |
| { "create_user_data", 4, do_create_user_data }, |
| { "destroy_user_data", 3, do_destroy_user_data }, |
| |
| { "dexopt", 10, do_dexopt }, |
| { "markbootcomplete", 1, do_mark_boot_complete }, |
| { "rmdex", 2, do_rm_dex }, |
| { "freecache", 2, do_free_cache }, |
| { "linklib", 4, do_linklib }, |
| { "idmap", 3, do_idmap }, |
| { "createoatdir", 2, do_create_oat_dir }, |
| { "rmpackagedir", 1, do_rm_package_dir }, |
| { "clear_app_profiles", 1, do_clear_app_profiles }, |
| { "destroy_app_profiles", 1, do_destroy_app_profiles }, |
| { "linkfile", 3, do_link_file }, |
| { "move_ab", 3, do_move_ab }, |
| { "merge_profiles", 2, do_merge_profiles }, |
| { "dump_profiles", 3, do_dump_profiles }, |
| { "delete_odex", 3, do_delete_odex }, |
| }; |
| |
| static int readx(int s, void *_buf, int count) |
| { |
| char *buf = (char *) _buf; |
| int n = 0, r; |
| if (count < 0) return -1; |
| while (n < count) { |
| r = read(s, buf + n, count - n); |
| if (r < 0) { |
| if (errno == EINTR) continue; |
| ALOGE("read error: %s\n", strerror(errno)); |
| return -1; |
| } |
| if (r == 0) { |
| ALOGE("eof\n"); |
| return -1; /* EOF */ |
| } |
| n += r; |
| } |
| return 0; |
| } |
| |
| static int writex(int s, const void *_buf, int count) |
| { |
| const char *buf = (const char *) _buf; |
| int n = 0, r; |
| if (count < 0) return -1; |
| while (n < count) { |
| r = write(s, buf + n, count - n); |
| if (r < 0) { |
| if (errno == EINTR) continue; |
| ALOGE("write error: %s\n", strerror(errno)); |
| return -1; |
| } |
| n += r; |
| } |
| return 0; |
| } |
| |
| |
| /* Tokenize the command buffer, locate a matching command, |
| * ensure that the required number of arguments are provided, |
| * call the function(), return the result. |
| */ |
| static int execute(int s, char cmd[BUFFER_MAX]) |
| { |
| char reply[REPLY_MAX]; |
| char *arg[TOKEN_MAX+1]; |
| unsigned i; |
| unsigned n = 0; |
| unsigned short count; |
| int ret = -1; |
| |
| // ALOGI("execute('%s')\n", cmd); |
| |
| /* default reply is "" */ |
| reply[0] = 0; |
| |
| /* n is number of args (not counting arg[0]) */ |
| arg[0] = cmd; |
| while (*cmd) { |
| if (isspace(*cmd)) { |
| *cmd++ = 0; |
| n++; |
| arg[n] = cmd; |
| if (n == TOKEN_MAX) { |
| ALOGE("too many arguments\n"); |
| goto done; |
| } |
| } |
| if (*cmd) { |
| cmd++; |
| } |
| } |
| |
| for (i = 0; i < sizeof(cmds) / sizeof(cmds[0]); i++) { |
| if (!strcmp(cmds[i].name,arg[0])) { |
| if (n != cmds[i].numargs) { |
| ALOGE("%s requires %d arguments (%d given)\n", |
| cmds[i].name, cmds[i].numargs, n); |
| } else { |
| ret = cmds[i].func(arg + 1, reply); |
| } |
| goto done; |
| } |
| } |
| ALOGE("unsupported command '%s'\n", arg[0]); |
| |
| done: |
| if (reply[0]) { |
| n = snprintf(cmd, BUFFER_MAX, "%d %s", ret, reply); |
| } else { |
| n = snprintf(cmd, BUFFER_MAX, "%d", ret); |
| } |
| if (n > BUFFER_MAX) n = BUFFER_MAX; |
| count = n; |
| |
| // ALOGI("reply: '%s'\n", cmd); |
| if (writex(s, &count, sizeof(count))) return -1; |
| if (writex(s, cmd, count)) return -1; |
| return 0; |
| } |
| |
| static bool initialize_globals() { |
| const char* data_path = getenv("ANDROID_DATA"); |
| if (data_path == nullptr) { |
| ALOGE("Could not find ANDROID_DATA"); |
| return false; |
| } |
| const char* root_path = getenv("ANDROID_ROOT"); |
| if (root_path == nullptr) { |
| ALOGE("Could not find ANDROID_ROOT"); |
| return false; |
| } |
| |
| return init_globals_from_data_and_root(data_path, root_path); |
| } |
| |
| static int initialize_directories() { |
| int res = -1; |
| |
| // Read current filesystem layout version to handle upgrade paths |
| char version_path[PATH_MAX]; |
| snprintf(version_path, PATH_MAX, "%s.layout_version", android_data_dir.path); |
| |
| int oldVersion; |
| if (fs_read_atomic_int(version_path, &oldVersion) == -1) { |
| oldVersion = 0; |
| } |
| int version = oldVersion; |
| |
| if (version < 2) { |
| SLOGD("Assuming that device has multi-user storage layout; upgrade no longer supported"); |
| version = 2; |
| } |
| |
| if (ensure_config_user_dirs(0) == -1) { |
| ALOGE("Failed to setup misc for user 0"); |
| goto fail; |
| } |
| |
| if (version == 2) { |
| ALOGD("Upgrading to /data/misc/user directories"); |
| |
| char misc_dir[PATH_MAX]; |
| snprintf(misc_dir, PATH_MAX, "%smisc", android_data_dir.path); |
| |
| char keychain_added_dir[PATH_MAX]; |
| snprintf(keychain_added_dir, PATH_MAX, "%s/keychain/cacerts-added", misc_dir); |
| |
| char keychain_removed_dir[PATH_MAX]; |
| snprintf(keychain_removed_dir, PATH_MAX, "%s/keychain/cacerts-removed", misc_dir); |
| |
| DIR *dir; |
| struct dirent *dirent; |
| dir = opendir("/data/user"); |
| if (dir != NULL) { |
| while ((dirent = readdir(dir))) { |
| const char *name = dirent->d_name; |
| |
| // skip "." and ".." |
| if (name[0] == '.') { |
| if (name[1] == 0) continue; |
| if ((name[1] == '.') && (name[2] == 0)) continue; |
| } |
| |
| uint32_t user_id = atoi(name); |
| |
| // /data/misc/user/<user_id> |
| if (ensure_config_user_dirs(user_id) == -1) { |
| goto fail; |
| } |
| |
| char misc_added_dir[PATH_MAX]; |
| snprintf(misc_added_dir, PATH_MAX, "%s/user/%s/cacerts-added", misc_dir, name); |
| |
| char misc_removed_dir[PATH_MAX]; |
| snprintf(misc_removed_dir, PATH_MAX, "%s/user/%s/cacerts-removed", misc_dir, name); |
| |
| uid_t uid = multiuser_get_uid(user_id, AID_SYSTEM); |
| gid_t gid = uid; |
| if (access(keychain_added_dir, F_OK) == 0) { |
| if (copy_dir_files(keychain_added_dir, misc_added_dir, uid, gid) != 0) { |
| ALOGE("Some files failed to copy"); |
| } |
| } |
| if (access(keychain_removed_dir, F_OK) == 0) { |
| if (copy_dir_files(keychain_removed_dir, misc_removed_dir, uid, gid) != 0) { |
| ALOGE("Some files failed to copy"); |
| } |
| } |
| } |
| closedir(dir); |
| |
| if (access(keychain_added_dir, F_OK) == 0) { |
| delete_dir_contents(keychain_added_dir, 1, 0); |
| } |
| if (access(keychain_removed_dir, F_OK) == 0) { |
| delete_dir_contents(keychain_removed_dir, 1, 0); |
| } |
| } |
| |
| version = 3; |
| } |
| |
| // Persist layout version if changed |
| if (version != oldVersion) { |
| if (fs_write_atomic_int(version_path, version) == -1) { |
| ALOGE("Failed to save version to %s: %s", version_path, strerror(errno)); |
| goto fail; |
| } |
| } |
| |
| // Success! |
| res = 0; |
| |
| fail: |
| return res; |
| } |
| |
| static int log_callback(int type, const char *fmt, ...) { |
| va_list ap; |
| int priority; |
| |
| switch (type) { |
| case SELINUX_WARNING: |
| priority = ANDROID_LOG_WARN; |
| break; |
| case SELINUX_INFO: |
| priority = ANDROID_LOG_INFO; |
| break; |
| default: |
| priority = ANDROID_LOG_ERROR; |
| break; |
| } |
| va_start(ap, fmt); |
| LOG_PRI_VA(priority, "SELinux", fmt, ap); |
| va_end(ap); |
| return 0; |
| } |
| |
| static int installd_main(const int argc ATTRIBUTE_UNUSED, char *argv[]) { |
| char buf[BUFFER_MAX]; |
| struct sockaddr addr; |
| socklen_t alen; |
| int lsocket, s; |
| int selinux_enabled = (is_selinux_enabled() > 0); |
| |
| setenv("ANDROID_LOG_TAGS", "*:v", 1); |
| android::base::InitLogging(argv); |
| |
| ALOGI("installd firing up\n"); |
| |
| union selinux_callback cb; |
| cb.func_log = log_callback; |
| selinux_set_callback(SELINUX_CB_LOG, cb); |
| |
| if (!initialize_globals()) { |
| ALOGE("Could not initialize globals; exiting.\n"); |
| exit(1); |
| } |
| |
| if (initialize_directories() < 0) { |
| ALOGE("Could not create directories; exiting.\n"); |
| exit(1); |
| } |
| |
| if (selinux_enabled && selinux_status_open(true) < 0) { |
| ALOGE("Could not open selinux status; exiting.\n"); |
| exit(1); |
| } |
| |
| lsocket = android_get_control_socket(SOCKET_PATH); |
| if (lsocket < 0) { |
| ALOGE("Failed to get socket from environment: %s\n", strerror(errno)); |
| exit(1); |
| } |
| if (listen(lsocket, 5)) { |
| ALOGE("Listen on socket failed: %s\n", strerror(errno)); |
| exit(1); |
| } |
| fcntl(lsocket, F_SETFD, FD_CLOEXEC); |
| |
| for (;;) { |
| alen = sizeof(addr); |
| s = accept(lsocket, &addr, &alen); |
| if (s < 0) { |
| ALOGE("Accept failed: %s\n", strerror(errno)); |
| continue; |
| } |
| fcntl(s, F_SETFD, FD_CLOEXEC); |
| |
| ALOGI("new connection\n"); |
| for (;;) { |
| unsigned short count; |
| if (readx(s, &count, sizeof(count))) { |
| ALOGE("failed to read size\n"); |
| break; |
| } |
| if ((count < 1) || (count >= BUFFER_MAX)) { |
| ALOGE("invalid size %d\n", count); |
| break; |
| } |
| if (readx(s, buf, count)) { |
| ALOGE("failed to read command\n"); |
| break; |
| } |
| buf[count] = 0; |
| if (selinux_enabled && selinux_status_updated() > 0) { |
| selinux_android_seapp_context_reload(); |
| } |
| if (execute(s, buf)) break; |
| } |
| ALOGI("closing connection\n"); |
| close(s); |
| } |
| |
| return 0; |
| } |
| |
| } // namespace installd |
| } // namespace android |
| |
| int main(const int argc, char *argv[]) { |
| return android::installd::installd_main(argc, argv); |
| } |