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The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <ctype.h>
Doug Zongker7c3ae452013-05-14 11:03:02 -070018#include <dirent.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080019#include <errno.h>
20#include <fcntl.h>
21#include <getopt.h>
Tao Bao862a4c12016-06-02 11:16:50 -070022#include <inttypes.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080023#include <limits.h>
Tao Bao862a4c12016-06-02 11:16:50 -070024#include <linux/fs.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080025#include <linux/input.h>
Doug Zongker7c3ae452013-05-14 11:03:02 -070026#include <stdarg.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080027#include <stdio.h>
28#include <stdlib.h>
29#include <string.h>
Patrick Tjincd055ee2014-12-09 11:26:40 -080030#include <sys/klog.h>
Doug Zongker23ceeea2010-07-08 17:27:55 -070031#include <sys/stat.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080032#include <sys/types.h>
Tao Baocdcf28f2016-01-13 15:05:20 -080033#include <sys/wait.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080034#include <time.h>
35#include <unistd.h>
36
Tao Baoc4a18ef2017-02-10 00:13:30 -080037#include <algorithm>
Tao Bao04ca4262015-09-10 15:32:24 -070038#include <chrono>
Tao Baoc4a18ef2017-02-10 00:13:30 -080039#include <memory>
Tao Bao862a4c12016-06-02 11:16:50 -070040#include <string>
41#include <vector>
Tao Bao04ca4262015-09-10 15:32:24 -070042
Elliott Hughes4b166f02015-12-04 15:30:20 -080043#include <android-base/file.h>
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -070044#include <android-base/logging.h>
Tianjie Xu3c62b672016-02-05 18:25:58 -080045#include <android-base/parseint.h>
Elliott Hughescb220402016-09-23 15:30:55 -070046#include <android-base/properties.h>
Elliott Hughes4b166f02015-12-04 15:30:20 -080047#include <android-base/stringprintf.h>
Tao Bao862a4c12016-06-02 11:16:50 -070048#include <android-base/strings.h>
49#include <android-base/unique_fd.h>
Yabin Cui8b309f62016-06-24 18:22:02 -070050#include <bootloader_message/bootloader_message.h>
Tao Bao75238632015-05-27 14:46:17 -070051#include <cutils/android_reboot.h>
Elliott Hughescb220402016-09-23 15:30:55 -070052#include <cutils/properties.h> /* for property_list */
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070053#include <healthd/BatteryMonitor.h>
Mark Salyzyna4f701a2016-03-09 14:58:16 -080054#include <private/android_logger.h> /* private pmsg functions */
Tao Baoe1905ad2017-03-22 14:57:04 -070055#include <private/android_filesystem_config.h> /* for AID_SYSTEM */
Jeff Vander Stoepe35926e2017-06-14 15:30:39 -070056#include <selinux/android.h>
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070057#include <selinux/label.h>
58#include <selinux/selinux.h>
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070059#include <ziparchive/zip_archive.h>
Yabin Cui99281df2016-02-17 12:21:52 -080060
Tao Bao75238632015-05-27 14:46:17 -070061#include "adb_install.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080062#include "common.h"
Tao Bao75238632015-05-27 14:46:17 -070063#include "device.h"
64#include "fuse_sdcard_provider.h"
65#include "fuse_sideload.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080066#include "install.h"
Josh Gaoacb2a2f2016-08-26 18:24:34 -070067#include "minadbd/minadbd.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080068#include "minui/minui.h"
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070069#include "otautil/DirUtil.h"
Tao Bao1fc5bf32017-10-06 07:43:41 -070070#include "otautil/error_code.h"
Tao Bao641fa972018-04-25 18:59:40 -070071#include "otautil/paths.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080072#include "roots.h"
Tianjie Xue113e4d2016-10-21 17:46:13 -070073#include "rotate_logs.h"
Doug Zongker211aebc2011-10-28 15:13:10 -070074#include "screen_ui.h"
Sen Jiangd5304492016-12-09 16:20:49 -080075#include "stub_ui.h"
Tianjie Xue113e4d2016-10-21 17:46:13 -070076#include "ui.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080077
78static const struct option OPTIONS[] = {
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080079 { "update_package", required_argument, NULL, 'u' },
Tianjie Xu3c62b672016-02-05 18:25:58 -080080 { "retry_count", required_argument, NULL, 'n' },
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080081 { "wipe_data", no_argument, NULL, 'w' },
82 { "wipe_cache", no_argument, NULL, 'c' },
Doug Zongker4bc98062010-09-03 11:00:13 -070083 { "show_text", no_argument, NULL, 't' },
Tao Baoc679f932015-03-30 09:43:49 -070084 { "sideload", no_argument, NULL, 's' },
85 { "sideload_auto_reboot", no_argument, NULL, 'a' },
Doug Zongkere5d5ac72012-04-12 11:01:22 -070086 { "just_exit", no_argument, NULL, 'x' },
Doug Zongker02ec6b82012-08-22 17:26:40 -070087 { "locale", required_argument, NULL, 'l' },
Doug Zongkerb1d12632014-03-18 10:32:12 -070088 { "shutdown_after", no_argument, NULL, 'p' },
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -070089 { "reason", required_argument, NULL, 'r' },
Tianjie Xu35926c42016-04-28 18:06:26 -070090 { "security", no_argument, NULL, 'e'},
Yabin Cui8b309f62016-06-24 18:22:02 -070091 { "wipe_ab", no_argument, NULL, 0 },
Yabin Cuifd99a312016-06-09 14:09:39 -070092 { "wipe_package_size", required_argument, NULL, 0 },
Paul Crowley08404b42016-12-19 13:04:23 -080093 { "prompt_and_wipe_data", no_argument, NULL, 0 },
Doug Zongker988500b2009-10-06 14:41:38 -070094 { NULL, 0, NULL, 0 },
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080095};
96
Tianjie Xu06e57ac2016-07-11 14:04:08 -070097// More bootreasons can be found in "system/core/bootstat/bootstat.cpp".
98static const std::vector<std::string> bootreason_blacklist {
99 "kernel_panic",
100 "Panic",
101};
102
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700103static const char *CACHE_LOG_DIR = "/cache/recovery";
Doug Zongkerd4208f92010-09-20 12:16:13 -0700104static const char *COMMAND_FILE = "/cache/recovery/command";
Doug Zongkerd4208f92010-09-20 12:16:13 -0700105static const char *LOG_FILE = "/cache/recovery/log";
Doug Zongkerd0181b82011-10-19 10:51:12 -0700106static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
Doug Zongker8b240cc2012-08-29 15:19:29 -0700107static const char *LOCALE_FILE = "/cache/recovery/last_locale";
Paul Lawrence661f8a62016-02-25 12:42:19 -0800108static const char *CONVERT_FBE_DIR = "/tmp/convert_fbe";
109static const char *CONVERT_FBE_FILE = "/tmp/convert_fbe/convert_fbe";
Michael Ward9d2629c2011-06-23 22:14:24 -0700110static const char *CACHE_ROOT = "/cache";
Paul Lawrenced0db3372015-11-05 13:38:40 -0800111static const char *DATA_ROOT = "/data";
Paul Crowley3b4d5162016-06-08 13:51:41 -0700112static const char* METADATA_ROOT = "/metadata";
Doug Zongkerd4208f92010-09-20 12:16:13 -0700113static const char *SDCARD_ROOT = "/sdcard";
Tao Baof0124322015-04-11 02:04:11 +0000114static const char *LAST_KMSG_FILE = "/cache/recovery/last_kmsg";
Tao Baobef39712015-05-04 18:50:27 -0700115static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
Tianjie Xu69575552017-05-16 15:51:46 -0700116// We will try to apply the update package 5 times at most in case of an I/O error or
117// bspatch | imgpatch error.
118static const int RETRY_LIMIT = 4;
Tao Baoac9d94d2016-11-03 11:37:15 -0700119static constexpr const char* RECOVERY_WIPE = "/etc/recovery.wipe";
Tianjie Xu2078b222017-03-22 12:27:26 -0700120static constexpr const char* DEFAULT_LOCALE = "en-US";
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700121
Tao Baobd0ddcd2017-05-04 13:03:18 -0700122// We define RECOVERY_API_VERSION in Android.mk, which will be picked up by build system and packed
123// into target_files.zip. Assert the version defined in code and in Android.mk are consistent.
124static_assert(kRecoveryApiVersion == RECOVERY_API_VERSION, "Mismatching recovery API versions.");
125
Tao Baoac9d94d2016-11-03 11:37:15 -0700126static std::string locale;
Dan Albert8584fcf2016-10-27 03:08:08 +0000127static bool has_cache = false;
Tao Baoc0319b62016-10-13 15:17:04 -0700128
Tao Baoac9d94d2016-11-03 11:37:15 -0700129RecoveryUI* ui = nullptr;
130bool modified_flash = false;
Tao Baoa8d72bc2016-12-25 18:46:50 -0800131std::string stage;
Tao Baoac9d94d2016-11-03 11:37:15 -0700132const char* reason = nullptr;
133struct selabel_handle* sehandle;
134
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800135/*
136 * The recovery tool communicates with the main system through /cache files.
137 * /cache/recovery/command - INPUT - command line for tool, one arg per line
138 * /cache/recovery/log - OUTPUT - combined log file from recovery run(s)
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800139 *
140 * The arguments which may be supplied in the recovery.command file:
Doug Zongkerd4208f92010-09-20 12:16:13 -0700141 * --update_package=path - verify install an OTA package file
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800142 * --wipe_data - erase user data (and cache), then reboot
Paul Crowley08404b42016-12-19 13:04:23 -0800143 * --prompt_and_wipe_data - prompt the user that data is corrupt,
144 * with their consent erase user data (and cache), then reboot
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800145 * --wipe_cache - wipe cache (but not user data), then reboot
Oscar Montemayor05231562009-11-30 08:40:57 -0800146 * --set_encrypted_filesystem=on|off - enables / diasables encrypted fs
Doug Zongkere5d5ac72012-04-12 11:01:22 -0700147 * --just_exit - do nothing; exit and reboot
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800148 *
149 * After completing, we remove /cache/recovery/command and reboot.
150 * Arguments may also be supplied in the bootloader control block (BCB).
151 * These important scenarios must be safely restartable at any point:
152 *
153 * FACTORY RESET
154 * 1. user selects "factory reset"
155 * 2. main system writes "--wipe_data" to /cache/recovery/command
156 * 3. main system reboots into recovery
157 * 4. get_args() writes BCB with "boot-recovery" and "--wipe_data"
158 * -- after this, rebooting will restart the erase --
Doug Zongkerd4208f92010-09-20 12:16:13 -0700159 * 5. erase_volume() reformats /data
160 * 6. erase_volume() reformats /cache
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800161 * 7. finish_recovery() erases BCB
162 * -- after this, rebooting will restart the main system --
163 * 8. main() calls reboot() to boot main system
164 *
165 * OTA INSTALL
166 * 1. main system downloads OTA package to /cache/some-filename.zip
Doug Zongker9b125b02010-09-22 12:01:37 -0700167 * 2. main system writes "--update_package=/cache/some-filename.zip"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800168 * 3. main system reboots into recovery
169 * 4. get_args() writes BCB with "boot-recovery" and "--update_package=..."
170 * -- after this, rebooting will attempt to reinstall the update --
171 * 5. install_package() attempts to install the update
172 * NOTE: the package install must itself be restartable from any point
173 * 6. finish_recovery() erases BCB
174 * -- after this, rebooting will (try to) restart the main system --
175 * 7. ** if install failed **
176 * 7a. prompt_and_wait() shows an error icon and waits for the user
Tao Baoc0336392016-12-13 22:29:49 -0800177 * 7b. the user reboots (pulling the battery, etc) into the main system
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800178 */
179
Tao Baoac3d1ed2017-07-23 00:01:02 -0700180// Open a given path, mounting partitions as necessary.
Tao Bao641fa972018-04-25 18:59:40 -0700181FILE* fopen_path(const std::string& path, const char* mode) {
182 if (ensure_path_mounted(path.c_str()) != 0) {
Tao Baoac3d1ed2017-07-23 00:01:02 -0700183 LOG(ERROR) << "Can't mount " << path;
184 return nullptr;
185 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800186
Tao Baoac3d1ed2017-07-23 00:01:02 -0700187 // When writing, try to create the containing directory, if necessary. Use generous permissions,
188 // the system (init.rc) will reset them.
189 if (strchr("wa", mode[0])) {
190 mkdir_recursively(path, 0777, true, sehandle);
191 }
Tao Bao641fa972018-04-25 18:59:40 -0700192 return fopen(path.c_str(), mode);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800193}
194
Tao Bao04ca4262015-09-10 15:32:24 -0700195// close a file, log an error if the error indicator is set
Tao Bao641fa972018-04-25 18:59:40 -0700196static void check_and_fclose(FILE* fp, const std::string& name) {
197 fflush(fp);
198 if (fsync(fileno(fp)) == -1) {
199 PLOG(ERROR) << "Failed to fsync " << name;
200 }
201 if (ferror(fp)) {
202 PLOG(ERROR) << "Error in " << name;
203 }
204 fclose(fp);
Tao Bao04ca4262015-09-10 15:32:24 -0700205}
206
Elliott Hughesf14af802015-02-10 14:46:14 -0800207bool is_ro_debuggable() {
Elliott Hughescb220402016-09-23 15:30:55 -0700208 return android::base::GetBoolProperty("ro.debuggable", false);
Elliott Hughesf14af802015-02-10 14:46:14 -0800209}
210
Dmitri Plotnikov8706a982017-04-18 08:28:26 -0700211bool reboot(const std::string& command) {
212 std::string cmd = command;
213 if (android::base::GetBoolProperty("ro.boot.quiescent", false)) {
214 cmd += ",quiescent";
215 }
216 return android::base::SetProperty(ANDROID_RB_PROPERTY, cmd);
217}
218
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700219static void redirect_stdio(const char* filename) {
Tao Bao04ca4262015-09-10 15:32:24 -0700220 int pipefd[2];
221 if (pipe(pipefd) == -1) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700222 PLOG(ERROR) << "pipe failed";
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700223
Tao Bao04ca4262015-09-10 15:32:24 -0700224 // Fall back to traditional logging mode without timestamps.
225 // If these fail, there's not really anywhere to complain...
226 freopen(filename, "a", stdout); setbuf(stdout, NULL);
227 freopen(filename, "a", stderr); setbuf(stderr, NULL);
228
229 return;
230 }
231
232 pid_t pid = fork();
233 if (pid == -1) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700234 PLOG(ERROR) << "fork failed";
Tao Bao04ca4262015-09-10 15:32:24 -0700235
236 // Fall back to traditional logging mode without timestamps.
237 // If these fail, there's not really anywhere to complain...
238 freopen(filename, "a", stdout); setbuf(stdout, NULL);
239 freopen(filename, "a", stderr); setbuf(stderr, NULL);
240
241 return;
242 }
243
244 if (pid == 0) {
245 /// Close the unused write end.
246 close(pipefd[1]);
247
248 auto start = std::chrono::steady_clock::now();
249
250 // Child logger to actually write to the log file.
Tianjie Xude6735e2017-07-10 15:13:33 -0700251 FILE* log_fp = fopen(filename, "ae");
Tao Bao04ca4262015-09-10 15:32:24 -0700252 if (log_fp == nullptr) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700253 PLOG(ERROR) << "fopen \"" << filename << "\" failed";
Tao Bao04ca4262015-09-10 15:32:24 -0700254 close(pipefd[0]);
Tao Bao3da88012017-02-03 13:09:23 -0800255 _exit(EXIT_FAILURE);
Tao Bao04ca4262015-09-10 15:32:24 -0700256 }
257
258 FILE* pipe_fp = fdopen(pipefd[0], "r");
259 if (pipe_fp == nullptr) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700260 PLOG(ERROR) << "fdopen failed";
Tao Bao04ca4262015-09-10 15:32:24 -0700261 check_and_fclose(log_fp, filename);
262 close(pipefd[0]);
Tao Bao3da88012017-02-03 13:09:23 -0800263 _exit(EXIT_FAILURE);
Tao Bao04ca4262015-09-10 15:32:24 -0700264 }
265
266 char* line = nullptr;
267 size_t len = 0;
268 while (getline(&line, &len, pipe_fp) != -1) {
269 auto now = std::chrono::steady_clock::now();
270 double duration = std::chrono::duration_cast<std::chrono::duration<double>>(
271 now - start).count();
272 if (line[0] == '\n') {
273 fprintf(log_fp, "[%12.6lf]\n", duration);
274 } else {
275 fprintf(log_fp, "[%12.6lf] %s", duration, line);
276 }
277 fflush(log_fp);
278 }
279
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700280 PLOG(ERROR) << "getline failed";
Tao Bao04ca4262015-09-10 15:32:24 -0700281
282 free(line);
283 check_and_fclose(log_fp, filename);
284 close(pipefd[0]);
Tao Bao3da88012017-02-03 13:09:23 -0800285 _exit(EXIT_FAILURE);
Tao Bao04ca4262015-09-10 15:32:24 -0700286 } else {
287 // Redirect stdout/stderr to the logger process.
288 // Close the unused read end.
289 close(pipefd[0]);
290
291 setbuf(stdout, nullptr);
292 setbuf(stderr, nullptr);
293
294 if (dup2(pipefd[1], STDOUT_FILENO) == -1) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700295 PLOG(ERROR) << "dup2 stdout failed";
Tao Bao04ca4262015-09-10 15:32:24 -0700296 }
297 if (dup2(pipefd[1], STDERR_FILENO) == -1) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700298 PLOG(ERROR) << "dup2 stderr failed";
Tao Bao04ca4262015-09-10 15:32:24 -0700299 }
300
301 close(pipefd[1]);
302 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800303}
304
305// command line args come from, in decreasing precedence:
306// - the actual command line
307// - the bootloader control block (one per line, after "recovery")
308// - the contents of COMMAND_FILE (one per line)
Tao Baof0ed1592016-12-02 11:32:19 -0800309static std::vector<std::string> get_args(const int argc, char** const argv) {
310 CHECK_GT(argc, 0);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800311
Tao Baof0ed1592016-12-02 11:32:19 -0800312 bootloader_message boot = {};
313 std::string err;
314 if (!read_bootloader_message(&boot, &err)) {
315 LOG(ERROR) << err;
316 // If fails, leave a zeroed bootloader_message.
317 boot = {};
318 }
Tao Baoa8d72bc2016-12-25 18:46:50 -0800319 stage = std::string(boot.stage);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800320
Tao Baof0ed1592016-12-02 11:32:19 -0800321 if (boot.command[0] != 0) {
322 std::string boot_command = std::string(boot.command, sizeof(boot.command));
323 LOG(INFO) << "Boot command: " << boot_command;
324 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800325
Tao Baof0ed1592016-12-02 11:32:19 -0800326 if (boot.status[0] != 0) {
327 std::string boot_status = std::string(boot.status, sizeof(boot.status));
328 LOG(INFO) << "Boot status: " << boot_status;
329 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800330
Tao Baof0ed1592016-12-02 11:32:19 -0800331 std::vector<std::string> args(argv, argv + argc);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800332
Tao Baof0ed1592016-12-02 11:32:19 -0800333 // --- if arguments weren't supplied, look in the bootloader control block
Tao Bao570af9d2017-01-09 10:29:59 -0800334 if (args.size() == 1) {
Tao Baof0ed1592016-12-02 11:32:19 -0800335 boot.recovery[sizeof(boot.recovery) - 1] = '\0'; // Ensure termination
336 std::string boot_recovery(boot.recovery);
337 std::vector<std::string> tokens = android::base::Split(boot_recovery, "\n");
338 if (!tokens.empty() && tokens[0] == "recovery") {
339 for (auto it = tokens.begin() + 1; it != tokens.end(); it++) {
340 // Skip empty and '\0'-filled tokens.
341 if (!it->empty() && (*it)[0] != '\0') args.push_back(std::move(*it));
342 }
343 LOG(INFO) << "Got " << args.size() << " arguments from boot message";
344 } else if (boot.recovery[0] != 0) {
345 LOG(ERROR) << "Bad boot message: \"" << boot_recovery << "\"";
346 }
347 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800348
Tao Baof0ed1592016-12-02 11:32:19 -0800349 // --- if that doesn't work, try the command file (if we have /cache).
Tao Bao570af9d2017-01-09 10:29:59 -0800350 if (args.size() == 1 && has_cache) {
Tao Baof0ed1592016-12-02 11:32:19 -0800351 std::string content;
Tao Bao7d34fa12016-12-08 18:10:48 -0800352 if (ensure_path_mounted(COMMAND_FILE) == 0 &&
353 android::base::ReadFileToString(COMMAND_FILE, &content)) {
Tao Baof0ed1592016-12-02 11:32:19 -0800354 std::vector<std::string> tokens = android::base::Split(content, "\n");
Tao Bao7d34fa12016-12-08 18:10:48 -0800355 // All the arguments in COMMAND_FILE are needed (unlike the BCB message,
356 // COMMAND_FILE doesn't use filename as the first argument).
357 for (auto it = tokens.begin(); it != tokens.end(); it++) {
Tao Baof0ed1592016-12-02 11:32:19 -0800358 // Skip empty and '\0'-filled tokens.
359 if (!it->empty() && (*it)[0] != '\0') args.push_back(std::move(*it));
360 }
361 LOG(INFO) << "Got " << args.size() << " arguments from " << COMMAND_FILE;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800362 }
Tao Baof0ed1592016-12-02 11:32:19 -0800363 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800364
Tao Baof0ed1592016-12-02 11:32:19 -0800365 // Write the arguments (excluding the filename in args[0]) back into the
366 // bootloader control block. So the device will always boot into recovery to
367 // finish the pending work, until finish_recovery() is called.
368 std::vector<std::string> options(args.cbegin() + 1, args.cend());
Tao Bao2292db82016-12-13 21:53:31 -0800369 if (!update_bootloader_message(options, &err)) {
370 LOG(ERROR) << "Failed to set BCB message: " << err;
Tao Baof0ed1592016-12-02 11:32:19 -0800371 }
372
373 return args;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800374}
375
Tao Bao2292db82016-12-13 21:53:31 -0800376// Set the BCB to reboot back into recovery (it won't resume the install from
377// sdcard though).
378static void set_sdcard_update_bootloader_message() {
379 std::vector<std::string> options;
380 std::string err;
381 if (!update_bootloader_message(options, &err)) {
382 LOG(ERROR) << "Failed to set BCB message: " << err;
383 }
Doug Zongker34c98df2009-08-18 12:05:45 -0700384}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800385
Tao Baobef39712015-05-04 18:50:27 -0700386// Read from kernel log into buffer and write out to file.
387static void save_kernel_log(const char* destination) {
388 int klog_buf_len = klogctl(KLOG_SIZE_BUFFER, 0, 0);
Patrick Tjincd055ee2014-12-09 11:26:40 -0800389 if (klog_buf_len <= 0) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700390 PLOG(ERROR) << "Error getting klog size";
Patrick Tjincd055ee2014-12-09 11:26:40 -0800391 return;
392 }
393
Tao Baobef39712015-05-04 18:50:27 -0700394 std::string buffer(klog_buf_len, 0);
395 int n = klogctl(KLOG_READ_ALL, &buffer[0], klog_buf_len);
396 if (n == -1) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -0700397 PLOG(ERROR) << "Error in reading klog";
Patrick Tjincd055ee2014-12-09 11:26:40 -0800398 return;
399 }
Tao Baobef39712015-05-04 18:50:27 -0700400 buffer.resize(n);
401 android::base::WriteStringToFile(buffer, destination);
Patrick Tjincd055ee2014-12-09 11:26:40 -0800402}
403
Tao Bao641fa972018-04-25 18:59:40 -0700404// Writes content to the current pmsg session.
405static ssize_t __pmsg_write(const std::string& filename, const std::string& buf) {
406 return __android_log_pmsg_file_write(LOG_ID_SYSTEM, ANDROID_LOG_INFO, filename.c_str(),
407 buf.data(), buf.size());
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800408}
409
Tao Bao641fa972018-04-25 18:59:40 -0700410static void copy_log_file_to_pmsg(const std::string& source, const std::string& destination) {
411 std::string content;
412 android::base::ReadFileToString(source, &content);
413 __pmsg_write(destination, content);
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800414}
415
Tao Baof0124322015-04-11 02:04:11 +0000416// How much of the temp log we have copied to the copy in cache.
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700417static off_t tmplog_offset = 0;
Tao Baof0124322015-04-11 02:04:11 +0000418
Tao Bao641fa972018-04-25 18:59:40 -0700419static void copy_log_file(const std::string& source, const std::string& destination, bool append) {
Tianjie Xude6735e2017-07-10 15:13:33 -0700420 FILE* dest_fp = fopen_path(destination, append ? "ae" : "we");
421 if (dest_fp == nullptr) {
422 PLOG(ERROR) << "Can't open " << destination;
423 } else {
Tao Bao641fa972018-04-25 18:59:40 -0700424 FILE* source_fp = fopen(source.c_str(), "re");
Tianjie Xude6735e2017-07-10 15:13:33 -0700425 if (source_fp != nullptr) {
426 if (append) {
427 fseeko(source_fp, tmplog_offset, SEEK_SET); // Since last write
428 }
429 char buf[4096];
430 size_t bytes;
431 while ((bytes = fread(buf, 1, sizeof(buf), source_fp)) != 0) {
432 fwrite(buf, 1, bytes, dest_fp);
433 }
434 if (append) {
435 tmplog_offset = ftello(source_fp);
436 }
437 check_and_fclose(source_fp, source);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700438 }
Tianjie Xude6735e2017-07-10 15:13:33 -0700439 check_and_fclose(dest_fp, destination);
440 }
Doug Zongker2c3539e2010-09-29 13:21:30 -0700441}
442
Tao Bao682c34b2015-04-07 17:16:35 -0700443static void copy_logs() {
Tao Bao641fa972018-04-25 18:59:40 -0700444 // We only rotate and record the log of the current session if there are actual attempts to modify
445 // the flash, such as wipes, installs from BCB or menu selections. This is to avoid unnecessary
446 // rotation (and possible deletion) of log files, if it does not do anything loggable.
447 if (!modified_flash) {
448 return;
449 }
Tao Bao682c34b2015-04-07 17:16:35 -0700450
Tao Bao641fa972018-04-25 18:59:40 -0700451 // Always write to pmsg, this allows the OTA logs to be caught in `logcat -L`.
452 copy_log_file_to_pmsg(Paths::Get().temporary_log_file(), LAST_LOG_FILE);
453 copy_log_file_to_pmsg(Paths::Get().temporary_install_file(), LAST_INSTALL_FILE);
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800454
Tao Bao641fa972018-04-25 18:59:40 -0700455 // We can do nothing for now if there's no /cache partition.
456 if (!has_cache) {
457 return;
458 }
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800459
Tao Bao641fa972018-04-25 18:59:40 -0700460 ensure_path_mounted(LAST_LOG_FILE);
461 ensure_path_mounted(LAST_KMSG_FILE);
462 rotate_logs(LAST_LOG_FILE, LAST_KMSG_FILE);
Tao Bao682c34b2015-04-07 17:16:35 -0700463
Tao Bao641fa972018-04-25 18:59:40 -0700464 // Copy logs to cache so the system can find out what happened.
465 copy_log_file(Paths::Get().temporary_log_file(), LOG_FILE, true);
466 copy_log_file(Paths::Get().temporary_log_file(), LAST_LOG_FILE, false);
467 copy_log_file(Paths::Get().temporary_install_file(), LAST_INSTALL_FILE, false);
468 save_kernel_log(LAST_KMSG_FILE);
469 chmod(LOG_FILE, 0600);
470 chown(LOG_FILE, AID_SYSTEM, AID_SYSTEM);
471 chmod(LAST_KMSG_FILE, 0600);
472 chown(LAST_KMSG_FILE, AID_SYSTEM, AID_SYSTEM);
473 chmod(LAST_LOG_FILE, 0640);
474 chmod(LAST_INSTALL_FILE, 0644);
475 sync();
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700476}
477
Tao Baoec579032017-07-21 12:13:15 -0700478// Clear the recovery command and prepare to boot a (hopefully working) system,
Tianjie Xuc14d95d2016-03-24 11:50:34 -0700479// copy our log file to cache as well (for the system to read). This function is
480// idempotent: call it as many times as you like.
Tao Baoac9d94d2016-11-03 11:37:15 -0700481static void finish_recovery() {
Tao Baoec579032017-07-21 12:13:15 -0700482 // Save the locale to cache, so if recovery is next started up without a '--locale' argument
483 // (e.g., directly from the bootloader) it will use the last-known locale.
484 if (!locale.empty() && has_cache) {
485 LOG(INFO) << "Saving locale \"" << locale << "\"";
486 if (ensure_path_mounted(LOCALE_FILE) != 0) {
487 LOG(ERROR) << "Failed to mount " << LOCALE_FILE;
488 } else if (!android::base::WriteStringToFile(locale, LOCALE_FILE)) {
489 PLOG(ERROR) << "Failed to save locale to " << LOCALE_FILE;
Doug Zongker4f33e552012-08-23 13:16:12 -0700490 }
Tao Baoec579032017-07-21 12:13:15 -0700491 }
Doug Zongker4f33e552012-08-23 13:16:12 -0700492
Tao Baoec579032017-07-21 12:13:15 -0700493 copy_logs();
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800494
Tao Baoec579032017-07-21 12:13:15 -0700495 // Reset to normal system boot so recovery won't cycle indefinitely.
496 std::string err;
497 if (!clear_bootloader_message(&err)) {
498 LOG(ERROR) << "Failed to clear BCB message: " << err;
499 }
500
501 // Remove the command file, so recovery won't repeat indefinitely.
502 if (has_cache) {
503 if (ensure_path_mounted(COMMAND_FILE) != 0 || (unlink(COMMAND_FILE) && errno != ENOENT)) {
504 LOG(WARNING) << "Can't unlink " << COMMAND_FILE;
Yabin Cui8b309f62016-06-24 18:22:02 -0700505 }
Tao Baoec579032017-07-21 12:13:15 -0700506 ensure_path_unmounted(CACHE_ROOT);
507 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800508
Tao Baoec579032017-07-21 12:13:15 -0700509 sync(); // For good measure.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800510}
511
Tao Bao3f5a3822016-12-13 11:14:37 -0800512struct saved_log_file {
513 std::string name;
514 struct stat sb;
515 std::string data;
516};
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700517
Elliott Hughes945548e2015-06-05 17:59:56 -0700518static bool erase_volume(const char* volume) {
Tao Bao3f5a3822016-12-13 11:14:37 -0800519 bool is_cache = (strcmp(volume, CACHE_ROOT) == 0);
520 bool is_data = (strcmp(volume, DATA_ROOT) == 0);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700521
Tao Bao3f5a3822016-12-13 11:14:37 -0800522 ui->SetBackground(RecoveryUI::ERASING);
523 ui->SetProgressType(RecoveryUI::INDETERMINATE);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700524
Tao Bao3f5a3822016-12-13 11:14:37 -0800525 std::vector<saved_log_file> log_files;
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700526
Tao Bao3f5a3822016-12-13 11:14:37 -0800527 if (is_cache) {
528 // If we're reformatting /cache, we load any past logs
529 // (i.e. "/cache/recovery/last_*") and the current log
530 // ("/cache/recovery/log") into memory, so we can restore them after
531 // the reformat.
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700532
Tao Bao3f5a3822016-12-13 11:14:37 -0800533 ensure_path_mounted(volume);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700534
Tao Bao3f5a3822016-12-13 11:14:37 -0800535 struct dirent* de;
536 std::unique_ptr<DIR, decltype(&closedir)> d(opendir(CACHE_LOG_DIR), closedir);
537 if (d) {
538 while ((de = readdir(d.get())) != nullptr) {
539 if (strncmp(de->d_name, "last_", 5) == 0 || strcmp(de->d_name, "log") == 0) {
540 std::string path = android::base::StringPrintf("%s/%s", CACHE_LOG_DIR, de->d_name);
541
542 struct stat sb;
543 if (stat(path.c_str(), &sb) == 0) {
544 // truncate files to 512kb
545 if (sb.st_size > (1 << 19)) {
546 sb.st_size = 1 << 19;
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700547 }
Tao Bao3f5a3822016-12-13 11:14:37 -0800548
549 std::string data(sb.st_size, '\0');
Tianjie Xude6735e2017-07-10 15:13:33 -0700550 FILE* f = fopen(path.c_str(), "rbe");
Tao Bao3f5a3822016-12-13 11:14:37 -0800551 fread(&data[0], 1, data.size(), f);
552 fclose(f);
553
554 log_files.emplace_back(saved_log_file{ path, sb, data });
555 }
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700556 }
Tao Bao3f5a3822016-12-13 11:14:37 -0800557 }
Paul Lawrenced0db3372015-11-05 13:38:40 -0800558 } else {
Tao Bao3f5a3822016-12-13 11:14:37 -0800559 if (errno != ENOENT) {
560 PLOG(ERROR) << "Failed to opendir " << CACHE_LOG_DIR;
561 }
Paul Lawrenced0db3372015-11-05 13:38:40 -0800562 }
Tao Bao3f5a3822016-12-13 11:14:37 -0800563 }
Doug Zongkerd0181b82011-10-19 10:51:12 -0700564
Tao Bao3f5a3822016-12-13 11:14:37 -0800565 ui->Print("Formatting %s...\n", volume);
566
567 ensure_path_unmounted(volume);
568
569 int result;
570
571 if (is_data && reason && strcmp(reason, "convert_fbe") == 0) {
572 // Create convert_fbe breadcrumb file to signal to init
573 // to convert to file based encryption, not full disk encryption
574 if (mkdir(CONVERT_FBE_DIR, 0700) != 0) {
575 ui->Print("Failed to make convert_fbe dir %s\n", strerror(errno));
576 return true;
577 }
Tianjie Xude6735e2017-07-10 15:13:33 -0700578 FILE* f = fopen(CONVERT_FBE_FILE, "wbe");
Tao Bao3f5a3822016-12-13 11:14:37 -0800579 if (!f) {
580 ui->Print("Failed to convert to file encryption %s\n", strerror(errno));
581 return true;
582 }
583 fclose(f);
584 result = format_volume(volume, CONVERT_FBE_DIR);
585 remove(CONVERT_FBE_FILE);
586 rmdir(CONVERT_FBE_DIR);
587 } else {
588 result = format_volume(volume);
589 }
590
591 if (is_cache) {
592 // Re-create the log dir and write back the log entries.
593 if (ensure_path_mounted(CACHE_LOG_DIR) == 0 &&
Tao Baoac3d1ed2017-07-23 00:01:02 -0700594 mkdir_recursively(CACHE_LOG_DIR, 0777, false, sehandle) == 0) {
Tao Bao3f5a3822016-12-13 11:14:37 -0800595 for (const auto& log : log_files) {
596 if (!android::base::WriteStringToFile(log.data, log.name, log.sb.st_mode, log.sb.st_uid,
597 log.sb.st_gid)) {
598 PLOG(ERROR) << "Failed to write to " << log.name;
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700599 }
Tao Bao3f5a3822016-12-13 11:14:37 -0800600 }
601 } else {
602 PLOG(ERROR) << "Failed to mount / create " << CACHE_LOG_DIR;
Doug Zongker2c3539e2010-09-29 13:21:30 -0700603 }
604
Tao Bao3f5a3822016-12-13 11:14:37 -0800605 // Any part of the log we'd copied to cache is now gone.
606 // Reset the pointer so we copy from the beginning of the temp
607 // log.
608 tmplog_offset = 0;
609 copy_logs();
610 }
611
612 return (result == 0);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800613}
614
Tao Baofc5499f2017-02-23 19:06:53 -0800615// Display a menu with the specified 'headers' and 'items'. Device specific HandleMenuKey() may
616// return a positive number beyond the given range. Caller sets 'menu_only' to true to ensure only
Tao Bao50dd5322017-03-07 14:57:04 -0800617// a menu item gets selected. 'initial_selection' controls the initial cursor location. Returns the
618// (non-negative) chosen item number, or -1 if timed out waiting for input.
Tao Baofc5499f2017-02-23 19:06:53 -0800619static int get_menu_selection(const char* const* headers, const char* const* items, bool menu_only,
620 int initial_selection, Device* device) {
621 // Throw away keys pressed previously, so user doesn't accidentally trigger menu items.
622 ui->FlushKeys();
Doug Zongkerf93d8162009-09-22 15:16:02 -0700623
Tao Baofc5499f2017-02-23 19:06:53 -0800624 ui->StartMenu(headers, items, initial_selection);
Tao Bao50dd5322017-03-07 14:57:04 -0800625
Tao Baofc5499f2017-02-23 19:06:53 -0800626 int selected = initial_selection;
627 int chosen_item = -1;
Tao Baofc5499f2017-02-23 19:06:53 -0800628 while (chosen_item < 0) {
629 int key = ui->WaitKey();
Tao Bao50dd5322017-03-07 14:57:04 -0800630 if (key == -1) { // WaitKey() timed out.
Tao Baofc5499f2017-02-23 19:06:53 -0800631 if (ui->WasTextEverVisible()) {
632 continue;
633 } else {
Tao Bao50dd5322017-03-07 14:57:04 -0800634 LOG(INFO) << "Timed out waiting for key input; rebooting.";
Tao Baofc5499f2017-02-23 19:06:53 -0800635 ui->EndMenu();
Tao Bao50dd5322017-03-07 14:57:04 -0800636 return -1;
Tao Baofc5499f2017-02-23 19:06:53 -0800637 }
Doug Zongkerf93d8162009-09-22 15:16:02 -0700638 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800639
Tao Baofc5499f2017-02-23 19:06:53 -0800640 bool visible = ui->IsTextVisible();
641 int action = device->HandleMenuKey(key, visible);
642
643 if (action < 0) {
644 switch (action) {
645 case Device::kHighlightUp:
646 selected = ui->SelectMenu(--selected);
647 break;
648 case Device::kHighlightDown:
649 selected = ui->SelectMenu(++selected);
650 break;
651 case Device::kInvokeItem:
652 chosen_item = selected;
653 break;
654 case Device::kNoAction:
655 break;
656 }
657 } else if (!menu_only) {
658 chosen_item = action;
659 }
660 }
661
662 ui->EndMenu();
663 return chosen_item;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700664}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800665
Tao Baoc4a18ef2017-02-10 00:13:30 -0800666// Returns the selected filename, or an empty string.
667static std::string browse_directory(const std::string& path, Device* device) {
668 ensure_path_mounted(path.c_str());
Doug Zongker8674a722010-09-15 11:08:23 -0700669
Tao Baoc4a18ef2017-02-10 00:13:30 -0800670 std::unique_ptr<DIR, decltype(&closedir)> d(opendir(path.c_str()), closedir);
671 if (!d) {
672 PLOG(ERROR) << "error opening " << path;
673 return "";
674 }
Doug Zongkerc18eeb82010-09-21 16:49:26 -0700675
Tao Baoc4a18ef2017-02-10 00:13:30 -0800676 std::vector<std::string> dirs;
677 std::vector<std::string> zips = { "../" }; // "../" is always the first entry.
678
679 dirent* de;
680 while ((de = readdir(d.get())) != nullptr) {
681 std::string name(de->d_name);
682
683 if (de->d_type == DT_DIR) {
684 // Skip "." and ".." entries.
685 if (name == "." || name == "..") continue;
686 dirs.push_back(name + "/");
687 } else if (de->d_type == DT_REG && android::base::EndsWithIgnoreCase(name, ".zip")) {
688 zips.push_back(name);
689 }
690 }
691
692 std::sort(dirs.begin(), dirs.end());
693 std::sort(zips.begin(), zips.end());
694
695 // Append dirs to the zips list.
696 zips.insert(zips.end(), dirs.begin(), dirs.end());
697
698 const char* entries[zips.size() + 1];
699 entries[zips.size()] = nullptr;
700 for (size_t i = 0; i < zips.size(); i++) {
701 entries[i] = zips[i].c_str();
702 }
703
704 const char* headers[] = { "Choose a package to install:", path.c_str(), nullptr };
705
706 int chosen_item = 0;
707 while (true) {
Tao Baofc5499f2017-02-23 19:06:53 -0800708 chosen_item = get_menu_selection(headers, entries, true, chosen_item, device);
Tao Baoc4a18ef2017-02-10 00:13:30 -0800709
710 const std::string& item = zips[chosen_item];
711 if (chosen_item == 0) {
712 // Go up but continue browsing (if the caller is browse_directory).
713 return "";
Doug Zongker8674a722010-09-15 11:08:23 -0700714 }
715
Tao Baoc4a18ef2017-02-10 00:13:30 -0800716 std::string new_path = path + "/" + item;
717 if (new_path.back() == '/') {
718 // Recurse down into a subdirectory.
719 new_path.pop_back();
720 std::string result = browse_directory(new_path, device);
721 if (!result.empty()) return result;
722 } else {
723 // Selected a zip file: return the path to the caller.
724 return new_path;
Doug Zongker8674a722010-09-15 11:08:23 -0700725 }
Tao Baoc4a18ef2017-02-10 00:13:30 -0800726 }
Doug Zongker8674a722010-09-15 11:08:23 -0700727
Tao Baoc4a18ef2017-02-10 00:13:30 -0800728 // Unreachable.
Doug Zongker8674a722010-09-15 11:08:23 -0700729}
730
Elliott Hughes30694c92015-03-25 15:16:51 -0700731static bool yes_no(Device* device, const char* question1, const char* question2) {
Elliott Hughes8fd86d72015-04-13 14:36:02 -0700732 const char* headers[] = { question1, question2, NULL };
Elliott Hughes30694c92015-03-25 15:16:51 -0700733 const char* items[] = { " No", " Yes", NULL };
Doug Zongkerddd6a282009-06-09 12:22:33 -0700734
Tao Baofc5499f2017-02-23 19:06:53 -0800735 int chosen_item = get_menu_selection(headers, items, true, 0, device);
Elliott Hughes30694c92015-03-25 15:16:51 -0700736 return (chosen_item == 1);
737}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800738
Paul Crowley08404b42016-12-19 13:04:23 -0800739static bool ask_to_wipe_data(Device* device) {
740 return yes_no(device, "Wipe all user data?", " THIS CAN NOT BE UNDONE!");
741}
Doug Zongker1066d2c2009-04-01 13:57:40 -0700742
Paul Crowley08404b42016-12-19 13:04:23 -0800743// Return true on success.
744static bool wipe_data(Device* device) {
Tao Bao682c34b2015-04-07 17:16:35 -0700745 modified_flash = true;
746
Doug Zongker211aebc2011-10-28 15:13:10 -0700747 ui->Print("\n-- Wiping data...\n");
Paul Crowley3b4d5162016-06-08 13:51:41 -0700748 bool success = device->PreWipeData();
749 if (success) {
750 success &= erase_volume(DATA_ROOT);
751 if (has_cache) {
752 success &= erase_volume(CACHE_ROOT);
753 }
754 if (volume_for_mount_point(METADATA_ROOT) != nullptr) {
755 success &= erase_volume(METADATA_ROOT);
756 }
757 }
758 if (success) {
759 success &= device->PostWipeData();
760 }
Elliott Hughes945548e2015-06-05 17:59:56 -0700761 ui->Print("Data wipe %s.\n", success ? "complete" : "failed");
762 return success;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700763}
764
Paul Crowley08404b42016-12-19 13:04:23 -0800765static bool prompt_and_wipe_data(Device* device) {
Tao Bao2bbc6d62017-08-13 23:48:55 -0700766 // Use a single string and let ScreenRecoveryUI handles the wrapping.
Tao Baofc5499f2017-02-23 19:06:53 -0800767 const char* const headers[] = {
Tao Bao2bbc6d62017-08-13 23:48:55 -0700768 "Can't load Android system. Your data may be corrupt. "
769 "If you continue to get this message, you may need to "
770 "perform a factory data reset and erase all user data "
Paul Crowley31ac0c62017-03-23 12:32:40 -0700771 "stored on this device.",
Tao Bao2bbc6d62017-08-13 23:48:55 -0700772 nullptr
Tao Baofc5499f2017-02-23 19:06:53 -0800773 };
774 const char* const items[] = {
Paul Crowley31ac0c62017-03-23 12:32:40 -0700775 "Try again",
776 "Factory data reset",
Tao Baofc5499f2017-02-23 19:06:53 -0800777 NULL
778 };
779 for (;;) {
780 int chosen_item = get_menu_selection(headers, items, true, 0, device);
781 if (chosen_item != 1) {
782 return true; // Just reboot, no wipe; not a failure, user asked for it
Paul Crowley08404b42016-12-19 13:04:23 -0800783 }
Tao Baofc5499f2017-02-23 19:06:53 -0800784 if (ask_to_wipe_data(device)) {
785 return wipe_data(device);
786 }
787 }
Paul Crowley08404b42016-12-19 13:04:23 -0800788}
789
Tao Baoe39a9bc2015-03-31 12:19:05 -0700790// Return true on success.
791static bool wipe_cache(bool should_confirm, Device* device) {
Tao Bao26112e52016-02-25 12:29:40 -0800792 if (!has_cache) {
793 ui->Print("No /cache partition found.\n");
794 return false;
795 }
796
Elliott Hughes30694c92015-03-25 15:16:51 -0700797 if (should_confirm && !yes_no(device, "Wipe cache?", " THIS CAN NOT BE UNDONE!")) {
Tao Baoe39a9bc2015-03-31 12:19:05 -0700798 return false;
Elliott Hughes30694c92015-03-25 15:16:51 -0700799 }
800
Tao Bao682c34b2015-04-07 17:16:35 -0700801 modified_flash = true;
802
Elliott Hughes30694c92015-03-25 15:16:51 -0700803 ui->Print("\n-- Wiping cache...\n");
Elliott Hughes945548e2015-06-05 17:59:56 -0700804 bool success = erase_volume("/cache");
805 ui->Print("Cache wipe %s.\n", success ? "complete" : "failed");
806 return success;
Elliott Hughes30694c92015-03-25 15:16:51 -0700807}
808
Tao Bao1b2a98b2017-03-24 10:45:34 -0700809// Secure-wipe a given partition. It uses BLKSECDISCARD, if supported. Otherwise, it goes with
810// BLKDISCARD (if device supports BLKDISCARDZEROES) or BLKZEROOUT.
Tao Bao862a4c12016-06-02 11:16:50 -0700811static bool secure_wipe_partition(const std::string& partition) {
Tao Bao1b2a98b2017-03-24 10:45:34 -0700812 android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(partition.c_str(), O_WRONLY)));
813 if (fd == -1) {
814 PLOG(ERROR) << "Failed to open \"" << partition << "\"";
815 return false;
816 }
817
818 uint64_t range[2] = { 0, 0 };
819 if (ioctl(fd, BLKGETSIZE64, &range[1]) == -1 || range[1] == 0) {
820 PLOG(ERROR) << "Failed to get partition size";
821 return false;
822 }
823 LOG(INFO) << "Secure-wiping \"" << partition << "\" from " << range[0] << " to " << range[1];
824
825 LOG(INFO) << " Trying BLKSECDISCARD...";
826 if (ioctl(fd, BLKSECDISCARD, &range) == -1) {
827 PLOG(WARNING) << " Failed";
828
829 // Use BLKDISCARD if it zeroes out blocks, otherwise use BLKZEROOUT.
830 unsigned int zeroes;
831 if (ioctl(fd, BLKDISCARDZEROES, &zeroes) == 0 && zeroes != 0) {
832 LOG(INFO) << " Trying BLKDISCARD...";
833 if (ioctl(fd, BLKDISCARD, &range) == -1) {
834 PLOG(ERROR) << " Failed";
Tao Bao862a4c12016-06-02 11:16:50 -0700835 return false;
Tao Bao1b2a98b2017-03-24 10:45:34 -0700836 }
837 } else {
838 LOG(INFO) << " Trying BLKZEROOUT...";
839 if (ioctl(fd, BLKZEROOUT, &range) == -1) {
840 PLOG(ERROR) << " Failed";
Tao Bao862a4c12016-06-02 11:16:50 -0700841 return false;
Tao Bao1b2a98b2017-03-24 10:45:34 -0700842 }
Tao Bao862a4c12016-06-02 11:16:50 -0700843 }
Tao Bao1b2a98b2017-03-24 10:45:34 -0700844 }
Tao Bao862a4c12016-06-02 11:16:50 -0700845
Tao Bao1b2a98b2017-03-24 10:45:34 -0700846 LOG(INFO) << " Done";
847 return true;
Tao Bao862a4c12016-06-02 11:16:50 -0700848}
849
Yabin Cuifd99a312016-06-09 14:09:39 -0700850// Check if the wipe package matches expectation:
851// 1. verify the package.
852// 2. check metadata (ota-type, pre-device and serial number if having one).
853static bool check_wipe_package(size_t wipe_package_size) {
854 if (wipe_package_size == 0) {
855 LOG(ERROR) << "wipe_package_size is zero";
856 return false;
857 }
858 std::string wipe_package;
859 std::string err_str;
860 if (!read_wipe_package(&wipe_package, wipe_package_size, &err_str)) {
861 PLOG(ERROR) << "Failed to read wipe package";
862 return false;
863 }
864 if (!verify_package(reinterpret_cast<const unsigned char*>(wipe_package.data()),
865 wipe_package.size())) {
866 LOG(ERROR) << "Failed to verify package";
867 return false;
868 }
869
870 // Extract metadata
871 ZipArchiveHandle zip;
Tao Baoefc35592017-01-08 22:45:47 -0800872 int err = OpenArchiveFromMemory(static_cast<void*>(&wipe_package[0]), wipe_package.size(),
873 "wipe_package", &zip);
Yabin Cuifd99a312016-06-09 14:09:39 -0700874 if (err != 0) {
875 LOG(ERROR) << "Can't open wipe package : " << ErrorCodeString(err);
876 return false;
877 }
878 std::string metadata;
Tao Bao1b2a98b2017-03-24 10:45:34 -0700879 if (!read_metadata_from_package(zip, &metadata)) {
Yabin Cuifd99a312016-06-09 14:09:39 -0700880 CloseArchive(zip);
881 return false;
882 }
883 CloseArchive(zip);
884
885 // Check metadata
886 std::vector<std::string> lines = android::base::Split(metadata, "\n");
887 bool ota_type_matched = false;
888 bool device_type_matched = false;
889 bool has_serial_number = false;
890 bool serial_number_matched = false;
891 for (const auto& line : lines) {
892 if (line == "ota-type=BRICK") {
893 ota_type_matched = true;
894 } else if (android::base::StartsWith(line, "pre-device=")) {
895 std::string device_type = line.substr(strlen("pre-device="));
Tao Baoefc35592017-01-08 22:45:47 -0800896 std::string real_device_type = android::base::GetProperty("ro.build.product", "");
Yabin Cuifd99a312016-06-09 14:09:39 -0700897 device_type_matched = (device_type == real_device_type);
898 } else if (android::base::StartsWith(line, "serialno=")) {
899 std::string serial_no = line.substr(strlen("serialno="));
Tao Baoefc35592017-01-08 22:45:47 -0800900 std::string real_serial_no = android::base::GetProperty("ro.serialno", "");
Yabin Cuifd99a312016-06-09 14:09:39 -0700901 has_serial_number = true;
902 serial_number_matched = (serial_no == real_serial_no);
903 }
904 }
905 return ota_type_matched && device_type_matched && (!has_serial_number || serial_number_matched);
906}
907
Yabin Cui8b309f62016-06-24 18:22:02 -0700908// Wipe the current A/B device, with a secure wipe of all the partitions in
909// RECOVERY_WIPE.
Yabin Cuifd99a312016-06-09 14:09:39 -0700910static bool wipe_ab_device(size_t wipe_package_size) {
Tao Bao862a4c12016-06-02 11:16:50 -0700911 ui->SetBackground(RecoveryUI::ERASING);
912 ui->SetProgressType(RecoveryUI::INDETERMINATE);
913
Yabin Cuifd99a312016-06-09 14:09:39 -0700914 if (!check_wipe_package(wipe_package_size)) {
915 LOG(ERROR) << "Failed to verify wipe package";
916 return false;
917 }
Tao Bao862a4c12016-06-02 11:16:50 -0700918 std::string partition_list;
Yabin Cui8b309f62016-06-24 18:22:02 -0700919 if (!android::base::ReadFileToString(RECOVERY_WIPE, &partition_list)) {
920 LOG(ERROR) << "failed to read \"" << RECOVERY_WIPE << "\"";
Tao Bao862a4c12016-06-02 11:16:50 -0700921 return false;
922 }
923
924 std::vector<std::string> lines = android::base::Split(partition_list, "\n");
925 for (const std::string& line : lines) {
926 std::string partition = android::base::Trim(line);
927 // Ignore '#' comment or empty lines.
928 if (android::base::StartsWith(partition, "#") || partition.empty()) {
929 continue;
930 }
931
932 // Proceed anyway even if it fails to wipe some partition.
933 secure_wipe_partition(partition);
934 }
935 return true;
936}
937
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700938static void choose_recovery_file(Device* device) {
Tao Bao08fc6be2017-03-07 00:56:27 -0800939 std::vector<std::string> entries;
940 if (has_cache) {
941 for (int i = 0; i < KEEP_LOG_COUNT; i++) {
942 auto add_to_entries = [&](const char* filename) {
943 std::string log_file(filename);
944 if (i > 0) {
945 log_file += "." + std::to_string(i);
Tao Baobef39712015-05-04 18:50:27 -0700946 }
Tao Bao08fc6be2017-03-07 00:56:27 -0800947
948 if (ensure_path_mounted(log_file.c_str()) == 0 && access(log_file.c_str(), R_OK) == 0) {
949 entries.push_back(std::move(log_file));
950 }
951 };
952
953 // Add LAST_LOG_FILE + LAST_LOG_FILE.x
954 add_to_entries(LAST_LOG_FILE);
955
956 // Add LAST_KMSG_FILE + LAST_KMSG_FILE.x
957 add_to_entries(LAST_KMSG_FILE);
958 }
959 } else {
960 // If cache partition is not found, view /tmp/recovery.log instead.
Tao Bao641fa972018-04-25 18:59:40 -0700961 if (access(Paths::Get().temporary_log_file().c_str(), R_OK) == -1) {
Tao Bao08fc6be2017-03-07 00:56:27 -0800962 return;
Tianjie Xua54f75e2016-08-17 12:02:46 -0700963 } else {
Tao Bao641fa972018-04-25 18:59:40 -0700964 entries.push_back(Paths::Get().temporary_log_file());
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700965 }
Tao Bao08fc6be2017-03-07 00:56:27 -0800966 }
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700967
Tao Bao08fc6be2017-03-07 00:56:27 -0800968 entries.push_back("Back");
Elliott Hughesc0491632015-05-06 12:40:05 -0700969
Tao Bao08fc6be2017-03-07 00:56:27 -0800970 std::vector<const char*> menu_entries(entries.size());
971 std::transform(entries.cbegin(), entries.cend(), menu_entries.begin(),
972 [](const std::string& entry) { return entry.c_str(); });
973 menu_entries.push_back(nullptr);
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700974
Tao Bao08fc6be2017-03-07 00:56:27 -0800975 const char* headers[] = { "Select file to view", nullptr };
Elliott Hughes8de52072015-04-08 20:06:50 -0700976
Tao Bao08fc6be2017-03-07 00:56:27 -0800977 int chosen_item = 0;
978 while (true) {
Tao Baofc5499f2017-02-23 19:06:53 -0800979 chosen_item = get_menu_selection(headers, menu_entries.data(), true, chosen_item, device);
Tao Bao08fc6be2017-03-07 00:56:27 -0800980 if (entries[chosen_item] == "Back") break;
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700981
Tao Bao08fc6be2017-03-07 00:56:27 -0800982 ui->ShowFile(entries[chosen_item].c_str());
983 }
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700984}
985
Tao Baodb7e8982017-03-06 23:53:16 -0800986static void run_graphics_test() {
987 // Switch to graphics screen.
988 ui->ShowText(false);
Elliott Hughes498cda62016-04-14 16:49:04 -0700989
Tao Baodb7e8982017-03-06 23:53:16 -0800990 ui->SetProgressType(RecoveryUI::INDETERMINATE);
991 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
992 sleep(1);
Elliott Hughes498cda62016-04-14 16:49:04 -0700993
Tao Baodb7e8982017-03-06 23:53:16 -0800994 ui->SetBackground(RecoveryUI::ERROR);
995 sleep(1);
Elliott Hughes498cda62016-04-14 16:49:04 -0700996
Tao Baodb7e8982017-03-06 23:53:16 -0800997 ui->SetBackground(RecoveryUI::NO_COMMAND);
998 sleep(1);
Elliott Hughes498cda62016-04-14 16:49:04 -0700999
Tao Baodb7e8982017-03-06 23:53:16 -08001000 ui->SetBackground(RecoveryUI::ERASING);
1001 sleep(1);
Elliott Hughes498cda62016-04-14 16:49:04 -07001002
Tao Baodb7e8982017-03-06 23:53:16 -08001003 // Calling SetBackground() after SetStage() to trigger a redraw.
1004 ui->SetStage(1, 3);
1005 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
1006 sleep(1);
1007 ui->SetStage(2, 3);
1008 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
1009 sleep(1);
1010 ui->SetStage(3, 3);
1011 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
1012 sleep(1);
Elliott Hughes498cda62016-04-14 16:49:04 -07001013
Tao Baodb7e8982017-03-06 23:53:16 -08001014 ui->SetStage(-1, -1);
1015 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
Elliott Hughes498cda62016-04-14 16:49:04 -07001016
Tao Baodb7e8982017-03-06 23:53:16 -08001017 ui->SetProgressType(RecoveryUI::DETERMINATE);
1018 ui->ShowProgress(1.0, 10.0);
1019 float fraction = 0.0;
1020 for (size_t i = 0; i < 100; ++i) {
1021 fraction += .01;
1022 ui->SetProgress(fraction);
1023 usleep(100000);
1024 }
1025
1026 ui->ShowText(true);
Elliott Hughes498cda62016-04-14 16:49:04 -07001027}
1028
Tao Baocdcf28f2016-01-13 15:05:20 -08001029// How long (in seconds) we wait for the fuse-provided package file to
1030// appear, before timing out.
1031#define SDCARD_INSTALL_TIMEOUT 10
1032
Tao Bao145d8612015-03-25 15:51:15 -07001033static int apply_from_sdcard(Device* device, bool* wipe_cache) {
Tao Bao682c34b2015-04-07 17:16:35 -07001034 modified_flash = true;
1035
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001036 if (ensure_path_mounted(SDCARD_ROOT) != 0) {
1037 ui->Print("\n-- Couldn't mount %s.\n", SDCARD_ROOT);
1038 return INSTALL_ERROR;
1039 }
1040
Tao Baoc4a18ef2017-02-10 00:13:30 -08001041 std::string path = browse_directory(SDCARD_ROOT, device);
1042 if (path.empty()) {
Elliott Hughes018ed312015-04-08 16:51:36 -07001043 ui->Print("\n-- No package file selected.\n");
caozhiyuanb4effb92015-06-10 16:46:38 +08001044 ensure_path_unmounted(SDCARD_ROOT);
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001045 return INSTALL_ERROR;
1046 }
1047
Tao Baoc4a18ef2017-02-10 00:13:30 -08001048 ui->Print("\n-- Install %s ...\n", path.c_str());
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001049 set_sdcard_update_bootloader_message();
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001050
Tao Baocdcf28f2016-01-13 15:05:20 -08001051 // We used to use fuse in a thread as opposed to a process. Since accessing
1052 // through fuse involves going from kernel to userspace to kernel, it leads
1053 // to deadlock when a page fault occurs. (Bug: 26313124)
1054 pid_t child;
1055 if ((child = fork()) == 0) {
Tao Baoc4a18ef2017-02-10 00:13:30 -08001056 bool status = start_sdcard_fuse(path.c_str());
Tao Baocdcf28f2016-01-13 15:05:20 -08001057
1058 _exit(status ? EXIT_SUCCESS : EXIT_FAILURE);
1059 }
1060
1061 // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the fuse in child
1062 // process is ready.
1063 int result = INSTALL_ERROR;
1064 int status;
1065 bool waited = false;
1066 for (int i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) {
1067 if (waitpid(child, &status, WNOHANG) == -1) {
1068 result = INSTALL_ERROR;
1069 waited = true;
1070 break;
1071 }
1072
1073 struct stat sb;
1074 if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &sb) == -1) {
1075 if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) {
1076 sleep(1);
1077 continue;
1078 } else {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -07001079 LOG(ERROR) << "Timed out waiting for the fuse-provided package.";
Tao Baocdcf28f2016-01-13 15:05:20 -08001080 result = INSTALL_ERROR;
1081 kill(child, SIGKILL);
1082 break;
1083 }
1084 }
1085
Tao Bao641fa972018-04-25 18:59:40 -07001086 result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, false, 0 /*retry_count*/);
Tao Baocdcf28f2016-01-13 15:05:20 -08001087 break;
1088 }
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001089
Tao Baocdcf28f2016-01-13 15:05:20 -08001090 if (!waited) {
1091 // Calling stat() on this magic filename signals the fuse
1092 // filesystem to shut down.
1093 struct stat sb;
1094 stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &sb);
1095
1096 waitpid(child, &status, 0);
1097 }
1098
1099 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -07001100 LOG(ERROR) << "Error exit from the fuse process: " << WEXITSTATUS(status);
Tao Baocdcf28f2016-01-13 15:05:20 -08001101 }
1102
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001103 ensure_path_unmounted(SDCARD_ROOT);
Tao Baocdcf28f2016-01-13 15:05:20 -08001104 return result;
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001105}
1106
Tao Bao50dd5322017-03-07 14:57:04 -08001107// Returns REBOOT, SHUTDOWN, or REBOOT_BOOTLOADER. Returning NO_ACTION means to take the default,
1108// which is to reboot or shutdown depending on if the --shutdown_after flag was passed to recovery.
1109static Device::BuiltinAction prompt_and_wait(Device* device, int status) {
1110 for (;;) {
1111 finish_recovery();
1112 switch (status) {
1113 case INSTALL_SUCCESS:
1114 case INSTALL_NONE:
1115 ui->SetBackground(RecoveryUI::NO_COMMAND);
1116 break;
Doug Zongker6c8553d2012-09-24 10:40:47 -07001117
Tao Bao50dd5322017-03-07 14:57:04 -08001118 case INSTALL_ERROR:
1119 case INSTALL_CORRUPT:
1120 ui->SetBackground(RecoveryUI::ERROR);
1121 break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001122 }
Tao Bao50dd5322017-03-07 14:57:04 -08001123 ui->SetProgressType(RecoveryUI::EMPTY);
1124
1125 int chosen_item = get_menu_selection(nullptr, device->GetMenuItems(), false, 0, device);
1126
1127 // Device-specific code may take some action here. It may return one of the core actions
1128 // handled in the switch statement below.
1129 Device::BuiltinAction chosen_action =
1130 (chosen_item == -1) ? Device::REBOOT : device->InvokeMenuItem(chosen_item);
1131
1132 bool should_wipe_cache = false;
1133 switch (chosen_action) {
1134 case Device::NO_ACTION:
1135 break;
1136
1137 case Device::REBOOT:
1138 case Device::SHUTDOWN:
1139 case Device::REBOOT_BOOTLOADER:
1140 return chosen_action;
1141
1142 case Device::WIPE_DATA:
1143 if (ui->IsTextVisible()) {
1144 if (ask_to_wipe_data(device)) {
1145 wipe_data(device);
1146 }
1147 } else {
1148 wipe_data(device);
1149 return Device::NO_ACTION;
1150 }
1151 break;
1152
1153 case Device::WIPE_CACHE:
1154 wipe_cache(ui->IsTextVisible(), device);
1155 if (!ui->IsTextVisible()) return Device::NO_ACTION;
1156 break;
1157
1158 case Device::APPLY_ADB_SIDELOAD:
1159 case Device::APPLY_SDCARD:
1160 {
1161 bool adb = (chosen_action == Device::APPLY_ADB_SIDELOAD);
1162 if (adb) {
Tao Bao641fa972018-04-25 18:59:40 -07001163 status = apply_from_adb(&should_wipe_cache);
Tao Bao50dd5322017-03-07 14:57:04 -08001164 } else {
1165 status = apply_from_sdcard(device, &should_wipe_cache);
1166 }
1167
1168 if (status == INSTALL_SUCCESS && should_wipe_cache) {
1169 if (!wipe_cache(false, device)) {
1170 status = INSTALL_ERROR;
1171 }
1172 }
1173
1174 if (status != INSTALL_SUCCESS) {
1175 ui->SetBackground(RecoveryUI::ERROR);
1176 ui->Print("Installation aborted.\n");
1177 copy_logs();
1178 } else if (!ui->IsTextVisible()) {
1179 return Device::NO_ACTION; // reboot if logs aren't visible
1180 } else {
1181 ui->Print("\nInstall from %s complete.\n", adb ? "ADB" : "SD card");
1182 }
1183 }
1184 break;
1185
1186 case Device::VIEW_RECOVERY_LOGS:
1187 choose_recovery_file(device);
1188 break;
1189
1190 case Device::RUN_GRAPHICS_TEST:
1191 run_graphics_test();
1192 break;
1193
Tianjie Xu29d55752017-09-20 17:53:46 -07001194 case Device::RUN_LOCALE_TEST: {
1195 ScreenRecoveryUI* screen_ui = static_cast<ScreenRecoveryUI*>(ui);
1196 screen_ui->CheckBackgroundTextImages(locale);
1197 break;
1198 }
Tao Bao50dd5322017-03-07 14:57:04 -08001199 case Device::MOUNT_SYSTEM:
1200 // For a system image built with the root directory (i.e. system_root_image == "true"), we
1201 // mount it to /system_root, and symlink /system to /system_root/system to make adb shell
1202 // work (the symlink is created through the build system). (Bug: 22855115)
1203 if (android::base::GetBoolProperty("ro.build.system_root_image", false)) {
1204 if (ensure_path_mounted_at("/", "/system_root") != -1) {
1205 ui->Print("Mounted /system.\n");
1206 }
1207 } else {
1208 if (ensure_path_mounted("/system") != -1) {
1209 ui->Print("Mounted /system.\n");
1210 }
1211 }
1212 break;
1213 }
1214 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001215}
1216
Tao Bao99f0d9e2016-10-13 12:46:38 -07001217static void print_property(const char* key, const char* name, void* /* cookie */) {
1218 printf("%s=%s\n", key, name);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001219}
1220
Tao Baoac9d94d2016-11-03 11:37:15 -07001221static std::string load_locale_from_cache() {
1222 if (ensure_path_mounted(LOCALE_FILE) != 0) {
1223 LOG(ERROR) << "Can't mount " << LOCALE_FILE;
1224 return "";
Doug Zongker02ec6b82012-08-22 17:26:40 -07001225 }
Tao Baoac9d94d2016-11-03 11:37:15 -07001226
1227 std::string content;
1228 if (!android::base::ReadFileToString(LOCALE_FILE, &content)) {
1229 PLOG(ERROR) << "Can't read " << LOCALE_FILE;
1230 return "";
1231 }
1232
1233 return android::base::Trim(content);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001234}
1235
Tao Baoac9d94d2016-11-03 11:37:15 -07001236void ui_print(const char* format, ...) {
1237 std::string buffer;
Doug Zongker7c3ae452013-05-14 11:03:02 -07001238 va_list ap;
1239 va_start(ap, format);
Tao Baoac9d94d2016-11-03 11:37:15 -07001240 android::base::StringAppendV(&buffer, format, ap);
Doug Zongker7c3ae452013-05-14 11:03:02 -07001241 va_end(ap);
1242
Tao Baoac9d94d2016-11-03 11:37:15 -07001243 if (ui != nullptr) {
1244 ui->Print("%s", buffer.c_str());
Doug Zongker7c3ae452013-05-14 11:03:02 -07001245 } else {
Tao Baoac9d94d2016-11-03 11:37:15 -07001246 fputs(buffer.c_str(), stdout);
Doug Zongker7c3ae452013-05-14 11:03:02 -07001247 }
1248}
1249
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -07001250static constexpr char log_characters[] = "VDIWEF";
1251
Tao Bao99f0d9e2016-10-13 12:46:38 -07001252void UiLogger(android::base::LogId /* id */, android::base::LogSeverity severity,
1253 const char* /* tag */, const char* /* file */, unsigned int /* line */,
1254 const char* message) {
1255 if (severity >= android::base::ERROR && ui != nullptr) {
1256 ui->Print("E:%s\n", message);
1257 } else {
1258 fprintf(stdout, "%c:%s\n", log_characters[severity], message);
1259 }
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -07001260}
1261
Tao Baof2ea6d72018-04-26 10:40:36 -07001262static bool is_battery_ok(int* required_battery_level) {
1263 struct healthd_config healthd_config = {
1264 .batteryStatusPath = android::String8(android::String8::kEmptyString),
1265 .batteryHealthPath = android::String8(android::String8::kEmptyString),
1266 .batteryPresentPath = android::String8(android::String8::kEmptyString),
1267 .batteryCapacityPath = android::String8(android::String8::kEmptyString),
1268 .batteryVoltagePath = android::String8(android::String8::kEmptyString),
1269 .batteryTemperaturePath = android::String8(android::String8::kEmptyString),
1270 .batteryTechnologyPath = android::String8(android::String8::kEmptyString),
1271 .batteryCurrentNowPath = android::String8(android::String8::kEmptyString),
1272 .batteryCurrentAvgPath = android::String8(android::String8::kEmptyString),
1273 .batteryChargeCounterPath = android::String8(android::String8::kEmptyString),
1274 .batteryFullChargePath = android::String8(android::String8::kEmptyString),
1275 .batteryCycleCountPath = android::String8(android::String8::kEmptyString),
1276 .energyCounter = nullptr,
1277 .boot_min_cap = 0,
1278 .screen_on = nullptr
1279 };
1280 healthd_board_init(&healthd_config);
Yabin Cui99281df2016-02-17 12:21:52 -08001281
Tao Baof2ea6d72018-04-26 10:40:36 -07001282 android::BatteryMonitor monitor;
1283 monitor.init(&healthd_config);
Yabin Cui99281df2016-02-17 12:21:52 -08001284
Tao Baof2ea6d72018-04-26 10:40:36 -07001285 static constexpr int BATTERY_READ_TIMEOUT_IN_SEC = 10;
1286 int wait_second = 0;
1287 while (true) {
1288 int charge_status = monitor.getChargeStatus();
1289 // Treat unknown status as charged.
1290 bool charged = (charge_status != android::BATTERY_STATUS_DISCHARGING &&
1291 charge_status != android::BATTERY_STATUS_NOT_CHARGING);
1292 android::BatteryProperty capacity;
1293 android::status_t status = monitor.getProperty(android::BATTERY_PROP_CAPACITY, &capacity);
1294 ui_print("charge_status %d, charged %d, status %d, capacity %" PRId64 "\n", charge_status,
1295 charged, status, capacity.valueInt64);
1296 // At startup, the battery drivers in devices like N5X/N6P take some time to load
1297 // the battery profile. Before the load finishes, it reports value 50 as a fake
1298 // capacity. BATTERY_READ_TIMEOUT_IN_SEC is set that the battery drivers are expected
1299 // to finish loading the battery profile earlier than 10 seconds after kernel startup.
1300 if (status == 0 && capacity.valueInt64 == 50) {
1301 if (wait_second < BATTERY_READ_TIMEOUT_IN_SEC) {
1302 sleep(1);
1303 wait_second++;
1304 continue;
1305 }
Yabin Cui99281df2016-02-17 12:21:52 -08001306 }
Tao Baof2ea6d72018-04-26 10:40:36 -07001307 // If we can't read battery percentage, it may be a device without battery. In this situation,
1308 // use 100 as a fake battery percentage.
1309 if (status != 0) {
1310 capacity.valueInt64 = 100;
1311 }
1312
1313 // GmsCore enters recovery mode to install package when having enough battery percentage.
1314 // Normally, the threshold is 40% without charger and 20% with charger. So we should check
1315 // battery with a slightly lower limitation.
1316 static constexpr int BATTERY_OK_PERCENTAGE = 20;
1317 static constexpr int BATTERY_WITH_CHARGER_OK_PERCENTAGE = 15;
1318 *required_battery_level = charged ? BATTERY_WITH_CHARGER_OK_PERCENTAGE : BATTERY_OK_PERCENTAGE;
1319 return capacity.valueInt64 >= *required_battery_level;
1320 }
Yabin Cui99281df2016-02-17 12:21:52 -08001321}
1322
Tianjie Xu99b73be2017-11-28 17:23:06 -08001323// Set the retry count to |retry_count| in BCB.
Tianjie Xu72449c92017-05-16 18:07:31 -07001324static void set_retry_bootloader_message(int retry_count, const std::vector<std::string>& args) {
1325 std::vector<std::string> options;
1326 for (const auto& arg : args) {
1327 if (!android::base::StartsWith(arg, "--retry_count")) {
1328 options.push_back(arg);
Tianjie Xu3c62b672016-02-05 18:25:58 -08001329 }
Tianjie Xu72449c92017-05-16 18:07:31 -07001330 }
Tianjie Xu3c62b672016-02-05 18:25:58 -08001331
Tianjie Xu99b73be2017-11-28 17:23:06 -08001332 // Update the retry counter in BCB.
1333 options.push_back(android::base::StringPrintf("--retry_count=%d", retry_count));
Tianjie Xu72449c92017-05-16 18:07:31 -07001334 std::string err;
1335 if (!update_bootloader_message(options, &err)) {
1336 LOG(ERROR) << err;
1337 }
Tianjie Xu3c62b672016-02-05 18:25:58 -08001338}
1339
Tianjie Xu06e57ac2016-07-11 14:04:08 -07001340static bool bootreason_in_blacklist() {
Tao Baoefc35592017-01-08 22:45:47 -08001341 std::string bootreason = android::base::GetProperty("ro.boot.bootreason", "");
1342 if (!bootreason.empty()) {
1343 for (const auto& str : bootreason_blacklist) {
1344 if (strcasecmp(str.c_str(), bootreason.c_str()) == 0) {
1345 return true;
1346 }
Tianjie Xu06e57ac2016-07-11 14:04:08 -07001347 }
Tao Baoefc35592017-01-08 22:45:47 -08001348 }
1349 return false;
Tianjie Xu06e57ac2016-07-11 14:04:08 -07001350}
1351
Tao Bao641fa972018-04-25 18:59:40 -07001352static void log_failure_code(ErrorCode code, const std::string& update_package) {
1353 std::vector<std::string> log_buffer = {
1354 update_package,
1355 "0", // install result
1356 "error: " + std::to_string(code),
1357 };
1358 std::string log_content = android::base::Join(log_buffer, "\n");
1359 const std::string& install_file = Paths::Get().temporary_install_file();
1360 if (!android::base::WriteStringToFile(log_content, install_file)) {
1361 PLOG(ERROR) << "Failed to write " << install_file;
1362 }
Tianjie Xu06e57ac2016-07-11 14:04:08 -07001363
Tao Bao641fa972018-04-25 18:59:40 -07001364 // Also write the info into last_log.
1365 LOG(INFO) << log_content;
Tianjie Xu06e57ac2016-07-11 14:04:08 -07001366}
1367
Yabin Cui99281df2016-02-17 12:21:52 -08001368int main(int argc, char **argv) {
Tianjie Xu99b73be2017-11-28 17:23:06 -08001369 // We don't have logcat yet under recovery; so we'll print error on screen and
1370 // log to stdout (which is redirected to recovery.log) as we used to do.
1371 android::base::InitLogging(argv, &UiLogger);
Tianjie Xu7b0ad9c2016-08-05 18:00:04 -07001372
Tianjie Xu99b73be2017-11-28 17:23:06 -08001373 // Take last pmsg contents and rewrite it to the current pmsg session.
1374 static const char filter[] = "recovery/";
1375 // Do we need to rotate?
1376 bool doRotate = false;
Tianjie Xue113e4d2016-10-21 17:46:13 -07001377
Tianjie Xu99b73be2017-11-28 17:23:06 -08001378 __android_log_pmsg_file_read(LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter, logbasename, &doRotate);
1379 // Take action to refresh pmsg contents
1380 __android_log_pmsg_file_read(LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter, logrotate, &doRotate);
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001381
Tianjie Xu99b73be2017-11-28 17:23:06 -08001382 // If this binary is started with the single argument "--adbd",
1383 // instead of being the normal recovery binary, it turns into kind
1384 // of a stripped-down version of adbd that only supports the
1385 // 'sideload' command. Note this must be a real argument, not
1386 // anything in the command file or bootloader control block; the
1387 // only way recovery should be run with this argument is when it
1388 // starts a copy of itself from the apply_from_adb() function.
1389 if (argc == 2 && strcmp(argv[1], "--adbd") == 0) {
1390 minadbd_main();
1391 return 0;
1392 }
1393
1394 time_t start = time(nullptr);
1395
1396 // redirect_stdio should be called only in non-sideload mode. Otherwise
1397 // we may have two logger instances with different timestamps.
Tao Bao641fa972018-04-25 18:59:40 -07001398 redirect_stdio(Paths::Get().temporary_log_file().c_str());
Tianjie Xu99b73be2017-11-28 17:23:06 -08001399
1400 printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start));
1401
1402 load_volume_table();
1403 has_cache = volume_for_mount_point(CACHE_ROOT) != nullptr;
1404
1405 std::vector<std::string> args = get_args(argc, argv);
1406 std::vector<char*> args_to_parse(args.size());
1407 std::transform(args.cbegin(), args.cend(), args_to_parse.begin(),
1408 [](const std::string& arg) { return const_cast<char*>(arg.c_str()); });
1409
1410 const char* update_package = nullptr;
1411 bool should_wipe_data = false;
1412 bool should_prompt_and_wipe_data = false;
1413 bool should_wipe_cache = false;
1414 bool should_wipe_ab = false;
1415 size_t wipe_package_size = 0;
1416 bool show_text = false;
1417 bool sideload = false;
1418 bool sideload_auto_reboot = false;
1419 bool just_exit = false;
1420 bool shutdown_after = false;
1421 int retry_count = 0;
1422 bool security_update = false;
1423
1424 int arg;
1425 int option_index;
1426 while ((arg = getopt_long(args_to_parse.size(), args_to_parse.data(), "", OPTIONS,
1427 &option_index)) != -1) {
1428 switch (arg) {
1429 case 'n':
1430 android::base::ParseInt(optarg, &retry_count, 0);
1431 break;
1432 case 'u':
1433 update_package = optarg;
1434 break;
1435 case 'w':
1436 should_wipe_data = true;
1437 break;
1438 case 'c':
1439 should_wipe_cache = true;
1440 break;
1441 case 't':
1442 show_text = true;
1443 break;
1444 case 's':
1445 sideload = true;
1446 break;
1447 case 'a':
1448 sideload = true;
1449 sideload_auto_reboot = true;
1450 break;
1451 case 'x':
1452 just_exit = true;
1453 break;
1454 case 'l':
1455 locale = optarg;
1456 break;
1457 case 'p':
1458 shutdown_after = true;
1459 break;
1460 case 'r':
1461 reason = optarg;
1462 break;
1463 case 'e':
1464 security_update = true;
1465 break;
1466 case 0: {
1467 std::string option = OPTIONS[option_index].name;
1468 if (option == "wipe_ab") {
1469 should_wipe_ab = true;
1470 } else if (option == "wipe_package_size") {
1471 android::base::ParseUint(optarg, &wipe_package_size);
1472 } else if (option == "prompt_and_wipe_data") {
1473 should_prompt_and_wipe_data = true;
1474 }
1475 break;
1476 }
1477 case '?':
1478 LOG(ERROR) << "Invalid command argument";
1479 continue;
Doug Zongker9270a202012-01-09 15:16:13 -08001480 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001481 }
Doug Zongker9270a202012-01-09 15:16:13 -08001482
Tianjie Xu99b73be2017-11-28 17:23:06 -08001483 if (locale.empty()) {
1484 if (has_cache) {
1485 locale = load_locale_from_cache();
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001486 }
1487
Tao Baoac9d94d2016-11-03 11:37:15 -07001488 if (locale.empty()) {
Tianjie Xu99b73be2017-11-28 17:23:06 -08001489 locale = DEFAULT_LOCALE;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001490 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001491 }
Tao Baoac9d94d2016-11-03 11:37:15 -07001492
Tianjie Xu99b73be2017-11-28 17:23:06 -08001493 printf("locale is [%s]\n", locale.c_str());
1494 printf("stage is [%s]\n", stage.c_str());
1495 printf("reason is [%s]\n", reason);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001496
Tianjie Xu99b73be2017-11-28 17:23:06 -08001497 Device* device = make_device();
1498 if (android::base::GetBoolProperty("ro.boot.quiescent", false)) {
1499 printf("Quiescent recovery mode.\n");
1500 ui = new StubRecoveryUI();
1501 } else {
1502 ui = device->GetUI();
1503
1504 if (!ui->Init(locale)) {
1505 printf("Failed to initialize UI, use stub UI instead.\n");
1506 ui = new StubRecoveryUI();
1507 }
1508 }
1509
1510 // Set background string to "installing security update" for security update,
1511 // otherwise set it to "installing system update".
1512 ui->SetSystemUpdateText(security_update);
1513
1514 int st_cur, st_max;
1515 if (!stage.empty() && sscanf(stage.c_str(), "%d/%d", &st_cur, &st_max) == 2) {
1516 ui->SetStage(st_cur, st_max);
1517 }
1518
1519 ui->SetBackground(RecoveryUI::NONE);
1520 if (show_text) ui->ShowText(true);
1521
1522 sehandle = selinux_android_file_context_handle();
1523 selinux_android_set_sehandle(sehandle);
1524 if (!sehandle) {
1525 ui->Print("Warning: No file_contexts\n");
1526 }
1527
1528 device->StartRecovery();
1529
1530 printf("Command:");
1531 for (const auto& arg : args) {
1532 printf(" \"%s\"", arg.c_str());
1533 }
1534 printf("\n\n");
1535
1536 property_list(print_property, nullptr);
1537 printf("\n");
1538
1539 ui->Print("Supported API: %d\n", kRecoveryApiVersion);
1540
1541 int status = INSTALL_SUCCESS;
1542
1543 if (update_package != nullptr) {
1544 // It's not entirely true that we will modify the flash. But we want
1545 // to log the update attempt since update_package is non-NULL.
1546 modified_flash = true;
1547
Tao Baof2ea6d72018-04-26 10:40:36 -07001548 int required_battery_level;
1549 if (retry_count == 0 && !is_battery_ok(&required_battery_level)) {
1550 ui->Print("battery capacity is not enough for installing package: %d%% needed\n",
1551 required_battery_level);
Tianjie Xu99b73be2017-11-28 17:23:06 -08001552 // Log the error code to last_install when installation skips due to
1553 // low battery.
1554 log_failure_code(kLowBattery, update_package);
1555 status = INSTALL_SKIPPED;
Tianjie Xua6f49bd2018-03-26 14:32:11 -07001556 } else if (retry_count == 0 && bootreason_in_blacklist()) {
Tianjie Xu99b73be2017-11-28 17:23:06 -08001557 // Skip update-on-reboot when bootreason is kernel_panic or similar
1558 ui->Print("bootreason is in the blacklist; skip OTA installation\n");
1559 log_failure_code(kBootreasonInBlacklist, update_package);
1560 status = INSTALL_SKIPPED;
Dmitri Plotnikov8706a982017-04-18 08:28:26 -07001561 } else {
Tianjie Xu99b73be2017-11-28 17:23:06 -08001562 // It's a fresh update. Initialize the retry_count in the BCB to 1; therefore we can later
1563 // identify the interrupted update due to unexpected reboots.
1564 if (retry_count == 0) {
1565 set_retry_bootloader_message(retry_count + 1, args);
Tao Bao7022f332017-07-25 09:52:36 -07001566 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001567
Tao Bao641fa972018-04-25 18:59:40 -07001568 status = install_package(update_package, &should_wipe_cache, true, retry_count);
Tianjie Xu99b73be2017-11-28 17:23:06 -08001569 if (status == INSTALL_SUCCESS && should_wipe_cache) {
1570 wipe_cache(false, device);
1571 }
1572 if (status != INSTALL_SUCCESS) {
1573 ui->Print("Installation aborted.\n");
1574 // When I/O error happens, reboot and retry installation RETRY_LIMIT
1575 // times before we abandon this OTA update.
1576 if (status == INSTALL_RETRY && retry_count < RETRY_LIMIT) {
1577 copy_logs();
1578 retry_count += 1;
1579 set_retry_bootloader_message(retry_count, args);
1580 // Print retry count on screen.
1581 ui->Print("Retry attempt %d\n", retry_count);
1582
1583 // Reboot and retry the update
1584 if (!reboot("reboot,recovery")) {
1585 ui->Print("Reboot failed\n");
1586 } else {
1587 while (true) {
1588 pause();
1589 }
1590 }
Tianjie Xud9d16292017-04-20 18:08:21 -07001591 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001592 // If this is an eng or userdebug build, then automatically
1593 // turn the text display on if the script fails so the error
1594 // message is visible.
1595 if (is_ro_debuggable()) {
1596 ui->ShowText(true);
Tao Baoc679f932015-03-30 09:43:49 -07001597 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001598 }
Doug Zongker8674a722010-09-15 11:08:23 -07001599 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001600 } else if (should_wipe_data) {
1601 if (!wipe_data(device)) {
1602 status = INSTALL_ERROR;
Doug Zongkerb1d12632014-03-18 10:32:12 -07001603 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001604 } else if (should_prompt_and_wipe_data) {
1605 ui->ShowText(true);
1606 ui->SetBackground(RecoveryUI::ERROR);
1607 if (!prompt_and_wipe_data(device)) {
1608 status = INSTALL_ERROR;
Tao Bao75238632015-05-27 14:46:17 -07001609 }
Tianjie Xu99b73be2017-11-28 17:23:06 -08001610 ui->ShowText(false);
1611 } else if (should_wipe_cache) {
1612 if (!wipe_cache(false, device)) {
1613 status = INSTALL_ERROR;
1614 }
1615 } else if (should_wipe_ab) {
1616 if (!wipe_ab_device(wipe_package_size)) {
1617 status = INSTALL_ERROR;
1618 }
1619 } else if (sideload) {
1620 // 'adb reboot sideload' acts the same as user presses key combinations
1621 // to enter the sideload mode. When 'sideload-auto-reboot' is used, text
1622 // display will NOT be turned on by default. And it will reboot after
1623 // sideload finishes even if there are errors. Unless one turns on the
1624 // text display during the installation. This is to enable automated
1625 // testing.
1626 if (!sideload_auto_reboot) {
1627 ui->ShowText(true);
1628 }
Tao Bao641fa972018-04-25 18:59:40 -07001629 status = apply_from_adb(&should_wipe_cache);
Tianjie Xu99b73be2017-11-28 17:23:06 -08001630 if (status == INSTALL_SUCCESS && should_wipe_cache) {
1631 if (!wipe_cache(false, device)) {
1632 status = INSTALL_ERROR;
1633 }
1634 }
1635 ui->Print("\nInstall from ADB complete (status: %d).\n", status);
1636 if (sideload_auto_reboot) {
1637 ui->Print("Rebooting automatically.\n");
1638 }
1639 } else if (!just_exit) {
1640 // If this is an eng or userdebug build, automatically turn on the text display if no command
1641 // is specified. Note that this should be called before setting the background to avoid
1642 // flickering the background image.
1643 if (is_ro_debuggable()) {
1644 ui->ShowText(true);
1645 }
1646 status = INSTALL_NONE; // No command specified
1647 ui->SetBackground(RecoveryUI::NO_COMMAND);
1648 }
1649
1650 if (status == INSTALL_ERROR || status == INSTALL_CORRUPT) {
1651 ui->SetBackground(RecoveryUI::ERROR);
1652 if (!ui->IsTextVisible()) {
1653 sleep(5);
1654 }
1655 }
1656
1657 Device::BuiltinAction after = shutdown_after ? Device::SHUTDOWN : Device::REBOOT;
1658 // 1. If the recovery menu is visible, prompt and wait for commands.
1659 // 2. If the state is INSTALL_NONE, wait for commands. (i.e. In user build, manually reboot into
1660 // recovery to sideload a package.)
1661 // 3. sideload_auto_reboot is an option only available in user-debug build, reboot the device
1662 // without waiting.
1663 // 4. In all other cases, reboot the device. Therefore, normal users will observe the device
1664 // reboot after it shows the "error" screen for 5s.
1665 if ((status == INSTALL_NONE && !sideload_auto_reboot) || ui->IsTextVisible()) {
1666 Device::BuiltinAction temp = prompt_and_wait(device, status);
1667 if (temp != Device::NO_ACTION) {
1668 after = temp;
1669 }
1670 }
1671
1672 // Save logs and clean up before rebooting or shutting down.
1673 finish_recovery();
1674
1675 switch (after) {
1676 case Device::SHUTDOWN:
1677 ui->Print("Shutting down...\n");
1678 android::base::SetProperty(ANDROID_RB_PROPERTY, "shutdown,");
1679 break;
1680
1681 case Device::REBOOT_BOOTLOADER:
1682 ui->Print("Rebooting to bootloader...\n");
1683 android::base::SetProperty(ANDROID_RB_PROPERTY, "reboot,bootloader");
1684 break;
1685
1686 default:
1687 ui->Print("Rebooting...\n");
1688 reboot("reboot,");
1689 break;
1690 }
1691 while (true) {
1692 pause();
1693 }
1694 // Should be unreachable.
1695 return EXIT_SUCCESS;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001696}