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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>
22#include <limits.h>
23#include <linux/input.h>
Doug Zongker7c3ae452013-05-14 11:03:02 -070024#include <stdarg.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080025#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
Patrick Tjincd055ee2014-12-09 11:26:40 -080028#include <sys/klog.h>
Doug Zongker23ceeea2010-07-08 17:27:55 -070029#include <sys/stat.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080030#include <sys/types.h>
Tao Baocdcf28f2016-01-13 15:05:20 -080031#include <sys/wait.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080032#include <time.h>
33#include <unistd.h>
34
Tao Bao04ca4262015-09-10 15:32:24 -070035#include <chrono>
36
Tao Bao75238632015-05-27 14:46:17 -070037#include <adb.h>
Mark Salyzyna4f701a2016-03-09 14:58:16 -080038#include <android/log.h> /* Android Log Priority Tags */
Elliott Hughes4b166f02015-12-04 15:30:20 -080039#include <android-base/file.h>
Tianjie Xu3c62b672016-02-05 18:25:58 -080040#include <android-base/parseint.h>
Elliott Hughes4b166f02015-12-04 15:30:20 -080041#include <android-base/stringprintf.h>
Tao Bao75238632015-05-27 14:46:17 -070042#include <cutils/android_reboot.h>
43#include <cutils/properties.h>
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070044#include <healthd/BatteryMonitor.h>
Mark Salyzyna4f701a2016-03-09 14:58:16 -080045#include <log/logger.h> /* Android Log packet format */
46#include <private/android_logger.h> /* private pmsg functions */
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070047#include <selinux/label.h>
48#include <selinux/selinux.h>
Yabin Cui53e7a062016-02-17 12:21:52 -080049
Tao Bao75238632015-05-27 14:46:17 -070050#include "adb_install.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080051#include "bootloader.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080052#include "common.h"
Tao Bao75238632015-05-27 14:46:17 -070053#include "device.h"
54#include "fuse_sdcard_provider.h"
55#include "fuse_sideload.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080056#include "install.h"
57#include "minui/minui.h"
58#include "minzip/DirUtil.h"
59#include "roots.h"
Doug Zongker28ce47c2011-10-28 10:33:05 -070060#include "ui.h"
Doug Zongker211aebc2011-10-28 15:13:10 -070061#include "screen_ui.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080062
Stephen Smalley779701d2012-02-09 14:13:23 -050063struct selabel_handle *sehandle;
64
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080065static const struct option OPTIONS[] = {
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080066 { "update_package", required_argument, NULL, 'u' },
Tianjie Xu3c62b672016-02-05 18:25:58 -080067 { "retry_count", required_argument, NULL, 'n' },
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080068 { "wipe_data", no_argument, NULL, 'w' },
69 { "wipe_cache", no_argument, NULL, 'c' },
Doug Zongker4bc98062010-09-03 11:00:13 -070070 { "show_text", no_argument, NULL, 't' },
Tao Baoc679f932015-03-30 09:43:49 -070071 { "sideload", no_argument, NULL, 's' },
72 { "sideload_auto_reboot", no_argument, NULL, 'a' },
Doug Zongkere5d5ac72012-04-12 11:01:22 -070073 { "just_exit", no_argument, NULL, 'x' },
Doug Zongker02ec6b82012-08-22 17:26:40 -070074 { "locale", required_argument, NULL, 'l' },
Doug Zongkerc87bab12013-11-25 13:53:25 -080075 { "stages", required_argument, NULL, 'g' },
Doug Zongkerb1d12632014-03-18 10:32:12 -070076 { "shutdown_after", no_argument, NULL, 'p' },
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -070077 { "reason", required_argument, NULL, 'r' },
Doug Zongker988500b2009-10-06 14:41:38 -070078 { NULL, 0, NULL, 0 },
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080079};
80
Doug Zongker6d0d7ac2013-07-09 13:34:55 -070081static const char *CACHE_LOG_DIR = "/cache/recovery";
Doug Zongkerd4208f92010-09-20 12:16:13 -070082static const char *COMMAND_FILE = "/cache/recovery/command";
Doug Zongkerd4208f92010-09-20 12:16:13 -070083static const char *LOG_FILE = "/cache/recovery/log";
Doug Zongkerd0181b82011-10-19 10:51:12 -070084static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
Doug Zongker8b240cc2012-08-29 15:19:29 -070085static const char *LOCALE_FILE = "/cache/recovery/last_locale";
Michael Ward9d2629c2011-06-23 22:14:24 -070086static const char *CACHE_ROOT = "/cache";
Doug Zongkerd4208f92010-09-20 12:16:13 -070087static const char *SDCARD_ROOT = "/sdcard";
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080088static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";
Doug Zongkerd0181b82011-10-19 10:51:12 -070089static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install";
Tao Baof0124322015-04-11 02:04:11 +000090static const char *LAST_KMSG_FILE = "/cache/recovery/last_kmsg";
Tao Baobef39712015-05-04 18:50:27 -070091static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
92static const int KEEP_LOG_COUNT = 10;
Tianjie Xu3c62b672016-02-05 18:25:58 -080093static const int EIO_RETRY_COUNT = 2;
Yabin Cui53e7a062016-02-17 12:21:52 -080094static const int BATTERY_READ_TIMEOUT_IN_SEC = 10;
95// GmsCore enters recovery mode to install package when having enough battery
96// percentage. Normally, the threshold is 40% without charger and 20% with charger.
97// So we should check battery with a slightly lower limitation.
98static const int BATTERY_OK_PERCENTAGE = 20;
99static const int BATTERY_WITH_CHARGER_OK_PERCENTAGE = 15;
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700100
Doug Zongker211aebc2011-10-28 15:13:10 -0700101RecoveryUI* ui = NULL;
Doug Zongker02ec6b82012-08-22 17:26:40 -0700102char* locale = NULL;
Doug Zongkerc87bab12013-11-25 13:53:25 -0800103char* stage = NULL;
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -0700104char* reason = NULL;
Tao Bao682c34b2015-04-07 17:16:35 -0700105bool modified_flash = false;
Tao Bao26112e52016-02-25 12:29:40 -0800106static bool has_cache = false;
Doug Zongker211aebc2011-10-28 15:13:10 -0700107
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800108/*
109 * The recovery tool communicates with the main system through /cache files.
110 * /cache/recovery/command - INPUT - command line for tool, one arg per line
111 * /cache/recovery/log - OUTPUT - combined log file from recovery run(s)
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800112 *
113 * The arguments which may be supplied in the recovery.command file:
Doug Zongkerd4208f92010-09-20 12:16:13 -0700114 * --update_package=path - verify install an OTA package file
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800115 * --wipe_data - erase user data (and cache), then reboot
116 * --wipe_cache - wipe cache (but not user data), then reboot
Oscar Montemayor05231562009-11-30 08:40:57 -0800117 * --set_encrypted_filesystem=on|off - enables / diasables encrypted fs
Doug Zongkere5d5ac72012-04-12 11:01:22 -0700118 * --just_exit - do nothing; exit and reboot
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800119 *
120 * After completing, we remove /cache/recovery/command and reboot.
121 * Arguments may also be supplied in the bootloader control block (BCB).
122 * These important scenarios must be safely restartable at any point:
123 *
124 * FACTORY RESET
125 * 1. user selects "factory reset"
126 * 2. main system writes "--wipe_data" to /cache/recovery/command
127 * 3. main system reboots into recovery
128 * 4. get_args() writes BCB with "boot-recovery" and "--wipe_data"
129 * -- after this, rebooting will restart the erase --
Doug Zongkerd4208f92010-09-20 12:16:13 -0700130 * 5. erase_volume() reformats /data
131 * 6. erase_volume() reformats /cache
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800132 * 7. finish_recovery() erases BCB
133 * -- after this, rebooting will restart the main system --
134 * 8. main() calls reboot() to boot main system
135 *
136 * OTA INSTALL
137 * 1. main system downloads OTA package to /cache/some-filename.zip
Doug Zongker9b125b02010-09-22 12:01:37 -0700138 * 2. main system writes "--update_package=/cache/some-filename.zip"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800139 * 3. main system reboots into recovery
140 * 4. get_args() writes BCB with "boot-recovery" and "--update_package=..."
141 * -- after this, rebooting will attempt to reinstall the update --
142 * 5. install_package() attempts to install the update
143 * NOTE: the package install must itself be restartable from any point
144 * 6. finish_recovery() erases BCB
145 * -- after this, rebooting will (try to) restart the main system --
146 * 7. ** if install failed **
147 * 7a. prompt_and_wait() shows an error icon and waits for the user
148 * 7b; the user reboots (pulling the battery, etc) into the main system
149 * 8. main() calls maybe_install_firmware_update()
150 * ** if the update contained radio/hboot firmware **:
151 * 8a. m_i_f_u() writes BCB with "boot-recovery" and "--wipe_cache"
152 * -- after this, rebooting will reformat cache & restart main system --
153 * 8b. m_i_f_u() writes firmware image into raw cache partition
154 * 8c. m_i_f_u() writes BCB with "update-radio/hboot" and "--wipe_cache"
155 * -- after this, rebooting will attempt to reinstall firmware --
156 * 8d. bootloader tries to flash firmware
157 * 8e. bootloader writes BCB with "boot-recovery" (keeping "--wipe_cache")
158 * -- after this, rebooting will reformat cache & restart main system --
Doug Zongkerd4208f92010-09-20 12:16:13 -0700159 * 8f. erase_volume() reformats /cache
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800160 * 8g. finish_recovery() erases BCB
161 * -- after this, rebooting will (try to) restart the main system --
162 * 9. main() calls reboot() to boot main system
163 */
164
165static const int MAX_ARG_LENGTH = 4096;
166static const int MAX_ARGS = 100;
167
Doug Zongkerd4208f92010-09-20 12:16:13 -0700168// open a given path, mounting partitions as necessary
Tao Bao04ca4262015-09-10 15:32:24 -0700169FILE* fopen_path(const char *path, const char *mode) {
Doug Zongkerd4208f92010-09-20 12:16:13 -0700170 if (ensure_path_mounted(path) != 0) {
171 LOGE("Can't mount %s\n", path);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800172 return NULL;
173 }
174
175 // When writing, try to create the containing directory, if necessary.
176 // Use generous permissions, the system (init.rc) will reset them.
Stephen Smalley779701d2012-02-09 14:13:23 -0500177 if (strchr("wa", mode[0])) dirCreateHierarchy(path, 0777, NULL, 1, sehandle);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800178
179 FILE *fp = fopen(path, mode);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800180 return fp;
181}
182
Tao Bao04ca4262015-09-10 15:32:24 -0700183// close a file, log an error if the error indicator is set
184static void check_and_fclose(FILE *fp, const char *name) {
185 fflush(fp);
186 if (ferror(fp)) LOGE("Error in %s\n(%s)\n", name, strerror(errno));
187 fclose(fp);
188}
189
Elliott Hughesf14af802015-02-10 14:46:14 -0800190bool is_ro_debuggable() {
191 char value[PROPERTY_VALUE_MAX+1];
192 return (property_get("ro.debuggable", value, NULL) == 1 && value[0] == '1');
193}
194
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700195static void redirect_stdio(const char* filename) {
Tao Bao04ca4262015-09-10 15:32:24 -0700196 int pipefd[2];
197 if (pipe(pipefd) == -1) {
198 LOGE("pipe failed: %s\n", strerror(errno));
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700199
Tao Bao04ca4262015-09-10 15:32:24 -0700200 // Fall back to traditional logging mode without timestamps.
201 // If these fail, there's not really anywhere to complain...
202 freopen(filename, "a", stdout); setbuf(stdout, NULL);
203 freopen(filename, "a", stderr); setbuf(stderr, NULL);
204
205 return;
206 }
207
208 pid_t pid = fork();
209 if (pid == -1) {
210 LOGE("fork failed: %s\n", strerror(errno));
211
212 // Fall back to traditional logging mode without timestamps.
213 // If these fail, there's not really anywhere to complain...
214 freopen(filename, "a", stdout); setbuf(stdout, NULL);
215 freopen(filename, "a", stderr); setbuf(stderr, NULL);
216
217 return;
218 }
219
220 if (pid == 0) {
221 /// Close the unused write end.
222 close(pipefd[1]);
223
224 auto start = std::chrono::steady_clock::now();
225
226 // Child logger to actually write to the log file.
227 FILE* log_fp = fopen(filename, "a");
228 if (log_fp == nullptr) {
229 LOGE("fopen \"%s\" failed: %s\n", filename, strerror(errno));
230 close(pipefd[0]);
231 _exit(1);
232 }
233
234 FILE* pipe_fp = fdopen(pipefd[0], "r");
235 if (pipe_fp == nullptr) {
236 LOGE("fdopen failed: %s\n", strerror(errno));
237 check_and_fclose(log_fp, filename);
238 close(pipefd[0]);
239 _exit(1);
240 }
241
242 char* line = nullptr;
243 size_t len = 0;
244 while (getline(&line, &len, pipe_fp) != -1) {
245 auto now = std::chrono::steady_clock::now();
246 double duration = std::chrono::duration_cast<std::chrono::duration<double>>(
247 now - start).count();
248 if (line[0] == '\n') {
249 fprintf(log_fp, "[%12.6lf]\n", duration);
250 } else {
251 fprintf(log_fp, "[%12.6lf] %s", duration, line);
252 }
253 fflush(log_fp);
254 }
255
256 LOGE("getline failed: %s\n", strerror(errno));
257
258 free(line);
259 check_and_fclose(log_fp, filename);
260 close(pipefd[0]);
261 _exit(1);
262 } else {
263 // Redirect stdout/stderr to the logger process.
264 // Close the unused read end.
265 close(pipefd[0]);
266
267 setbuf(stdout, nullptr);
268 setbuf(stderr, nullptr);
269
270 if (dup2(pipefd[1], STDOUT_FILENO) == -1) {
271 LOGE("dup2 stdout failed: %s\n", strerror(errno));
272 }
273 if (dup2(pipefd[1], STDERR_FILENO) == -1) {
274 LOGE("dup2 stderr failed: %s\n", strerror(errno));
275 }
276
277 close(pipefd[1]);
278 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800279}
280
281// command line args come from, in decreasing precedence:
282// - the actual command line
283// - the bootloader control block (one per line, after "recovery")
284// - the contents of COMMAND_FILE (one per line)
285static void
286get_args(int *argc, char ***argv) {
287 struct bootloader_message boot;
288 memset(&boot, 0, sizeof(boot));
289 get_bootloader_message(&boot); // this may fail, leaving a zeroed structure
Doug Zongkerc87bab12013-11-25 13:53:25 -0800290 stage = strndup(boot.stage, sizeof(boot.stage));
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800291
292 if (boot.command[0] != 0 && boot.command[0] != 255) {
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700293 LOGI("Boot command: %.*s\n", (int)sizeof(boot.command), boot.command);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800294 }
295
296 if (boot.status[0] != 0 && boot.status[0] != 255) {
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700297 LOGI("Boot status: %.*s\n", (int)sizeof(boot.status), boot.status);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800298 }
299
300 // --- if arguments weren't supplied, look in the bootloader control block
301 if (*argc <= 1) {
302 boot.recovery[sizeof(boot.recovery) - 1] = '\0'; // Ensure termination
303 const char *arg = strtok(boot.recovery, "\n");
304 if (arg != NULL && !strcmp(arg, "recovery")) {
305 *argv = (char **) malloc(sizeof(char *) * MAX_ARGS);
306 (*argv)[0] = strdup(arg);
307 for (*argc = 1; *argc < MAX_ARGS; ++*argc) {
308 if ((arg = strtok(NULL, "\n")) == NULL) break;
309 (*argv)[*argc] = strdup(arg);
310 }
311 LOGI("Got arguments from boot message\n");
312 } else if (boot.recovery[0] != 0 && boot.recovery[0] != 255) {
313 LOGE("Bad boot message\n\"%.20s\"\n", boot.recovery);
314 }
315 }
316
Tao Bao26112e52016-02-25 12:29:40 -0800317 // --- if that doesn't work, try the command file (if we have /cache).
318 if (*argc <= 1 && has_cache) {
Doug Zongkerd4208f92010-09-20 12:16:13 -0700319 FILE *fp = fopen_path(COMMAND_FILE, "r");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800320 if (fp != NULL) {
Jin Feng93ffa752013-06-04 17:46:24 +0800321 char *token;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800322 char *argv0 = (*argv)[0];
323 *argv = (char **) malloc(sizeof(char *) * MAX_ARGS);
324 (*argv)[0] = argv0; // use the same program name
325
326 char buf[MAX_ARG_LENGTH];
327 for (*argc = 1; *argc < MAX_ARGS; ++*argc) {
328 if (!fgets(buf, sizeof(buf), fp)) break;
Jin Feng93ffa752013-06-04 17:46:24 +0800329 token = strtok(buf, "\r\n");
330 if (token != NULL) {
331 (*argv)[*argc] = strdup(token); // Strip newline.
332 } else {
333 --*argc;
334 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800335 }
336
337 check_and_fclose(fp, COMMAND_FILE);
338 LOGI("Got arguments from %s\n", COMMAND_FILE);
339 }
340 }
341
342 // --> write the arguments we have back into the bootloader control block
343 // always boot into recovery after this (until finish_recovery() is called)
344 strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
345 strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
346 int i;
347 for (i = 1; i < *argc; ++i) {
348 strlcat(boot.recovery, (*argv)[i], sizeof(boot.recovery));
349 strlcat(boot.recovery, "\n", sizeof(boot.recovery));
350 }
351 set_bootloader_message(&boot);
352}
353
Doug Zongker34c98df2009-08-18 12:05:45 -0700354static void
Oscar Montemayor05231562009-11-30 08:40:57 -0800355set_sdcard_update_bootloader_message() {
Doug Zongker34c98df2009-08-18 12:05:45 -0700356 struct bootloader_message boot;
357 memset(&boot, 0, sizeof(boot));
358 strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
359 strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
360 set_bootloader_message(&boot);
361}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800362
Tao Baobef39712015-05-04 18:50:27 -0700363// Read from kernel log into buffer and write out to file.
364static void save_kernel_log(const char* destination) {
365 int klog_buf_len = klogctl(KLOG_SIZE_BUFFER, 0, 0);
Patrick Tjincd055ee2014-12-09 11:26:40 -0800366 if (klog_buf_len <= 0) {
Tao Baobef39712015-05-04 18:50:27 -0700367 LOGE("Error getting klog size: %s\n", strerror(errno));
Patrick Tjincd055ee2014-12-09 11:26:40 -0800368 return;
369 }
370
Tao Baobef39712015-05-04 18:50:27 -0700371 std::string buffer(klog_buf_len, 0);
372 int n = klogctl(KLOG_READ_ALL, &buffer[0], klog_buf_len);
373 if (n == -1) {
374 LOGE("Error in reading klog: %s\n", strerror(errno));
Patrick Tjincd055ee2014-12-09 11:26:40 -0800375 return;
376 }
Tao Baobef39712015-05-04 18:50:27 -0700377 buffer.resize(n);
378 android::base::WriteStringToFile(buffer, destination);
Patrick Tjincd055ee2014-12-09 11:26:40 -0800379}
380
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800381// write content to the current pmsg session.
382static ssize_t __pmsg_write(const char *filename, const char *buf, size_t len) {
383 return __android_log_pmsg_file_write(LOG_ID_SYSTEM, ANDROID_LOG_INFO,
384 filename, buf, len);
385}
386
387static void copy_log_file_to_pmsg(const char* source, const char* destination) {
388 std::string content;
389 android::base::ReadFileToString(source, &content);
390 __pmsg_write(destination, content.c_str(), content.length());
391}
392
Tao Baof0124322015-04-11 02:04:11 +0000393// How much of the temp log we have copied to the copy in cache.
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700394static off_t tmplog_offset = 0;
Tao Baof0124322015-04-11 02:04:11 +0000395
Tao Baobef39712015-05-04 18:50:27 -0700396static void copy_log_file(const char* source, const char* destination, bool append) {
397 FILE* dest_fp = fopen_path(destination, append ? "a" : "w");
398 if (dest_fp == nullptr) {
Doug Zongker2c3539e2010-09-29 13:21:30 -0700399 LOGE("Can't open %s\n", destination);
400 } else {
Tao Baobef39712015-05-04 18:50:27 -0700401 FILE* source_fp = fopen(source, "r");
402 if (source_fp != nullptr) {
Tao Baof0124322015-04-11 02:04:11 +0000403 if (append) {
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700404 fseeko(source_fp, tmplog_offset, SEEK_SET); // Since last write
Doug Zongker2c3539e2010-09-29 13:21:30 -0700405 }
406 char buf[4096];
Tao Baobef39712015-05-04 18:50:27 -0700407 size_t bytes;
408 while ((bytes = fread(buf, 1, sizeof(buf), source_fp)) != 0) {
409 fwrite(buf, 1, bytes, dest_fp);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700410 }
Tao Baobef39712015-05-04 18:50:27 -0700411 if (append) {
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700412 tmplog_offset = ftello(source_fp);
Tao Baobef39712015-05-04 18:50:27 -0700413 }
414 check_and_fclose(source_fp, source);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700415 }
Tao Baobef39712015-05-04 18:50:27 -0700416 check_and_fclose(dest_fp, destination);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700417 }
418}
419
Tao Baobef39712015-05-04 18:50:27 -0700420// Rename last_log -> last_log.1 -> last_log.2 -> ... -> last_log.$max.
421// Similarly rename last_kmsg -> last_kmsg.1 -> ... -> last_kmsg.$max.
422// Overwrite any existing last_log.$max and last_kmsg.$max.
423static void rotate_logs(int max) {
Tao Bao682c34b2015-04-07 17:16:35 -0700424 // Logs should only be rotated once.
425 static bool rotated = false;
426 if (rotated) {
427 return;
428 }
429 rotated = true;
430 ensure_path_mounted(LAST_LOG_FILE);
Tao Baobef39712015-05-04 18:50:27 -0700431 ensure_path_mounted(LAST_KMSG_FILE);
Tao Bao682c34b2015-04-07 17:16:35 -0700432
Tao Bao682c34b2015-04-07 17:16:35 -0700433 for (int i = max-1; i >= 0; --i) {
Tao Bao80e46e02015-06-03 10:49:29 -0700434 std::string old_log = android::base::StringPrintf("%s", LAST_LOG_FILE);
435 if (i > 0) {
436 old_log += "." + std::to_string(i);
437 }
Tao Baobef39712015-05-04 18:50:27 -0700438 std::string new_log = android::base::StringPrintf("%s.%d", LAST_LOG_FILE, i+1);
439 // Ignore errors if old_log doesn't exist.
440 rename(old_log.c_str(), new_log.c_str());
441
Tao Bao80e46e02015-06-03 10:49:29 -0700442 std::string old_kmsg = android::base::StringPrintf("%s", LAST_KMSG_FILE);
443 if (i > 0) {
444 old_kmsg += "." + std::to_string(i);
445 }
Tao Baobef39712015-05-04 18:50:27 -0700446 std::string new_kmsg = android::base::StringPrintf("%s.%d", LAST_KMSG_FILE, i+1);
447 rename(old_kmsg.c_str(), new_kmsg.c_str());
Doug Zongkerda1ebae2013-05-16 11:23:48 -0700448 }
449}
Doug Zongker2c3539e2010-09-29 13:21:30 -0700450
Tao Bao682c34b2015-04-07 17:16:35 -0700451static void copy_logs() {
452 // We only rotate and record the log of the current session if there are
453 // actual attempts to modify the flash, such as wipes, installs from BCB
454 // or menu selections. This is to avoid unnecessary rotation (and
455 // possible deletion) of log files, if it does not do anything loggable.
456 if (!modified_flash) {
457 return;
458 }
459
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800460 // Always write to pmsg, this allows the OTA logs to be caught in logcat -L
461 copy_log_file_to_pmsg(TEMPORARY_LOG_FILE, LAST_LOG_FILE);
462 copy_log_file_to_pmsg(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE);
463
464 // We can do nothing for now if there's no /cache partition.
465 if (!has_cache) {
466 return;
467 }
468
Tao Baobef39712015-05-04 18:50:27 -0700469 rotate_logs(KEEP_LOG_COUNT);
Tao Bao682c34b2015-04-07 17:16:35 -0700470
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700471 // Copy logs to cache so the system can find out what happened.
Tao Baof0124322015-04-11 02:04:11 +0000472 copy_log_file(TEMPORARY_LOG_FILE, LOG_FILE, true);
473 copy_log_file(TEMPORARY_LOG_FILE, LAST_LOG_FILE, false);
474 copy_log_file(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE, false);
475 save_kernel_log(LAST_KMSG_FILE);
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700476 chmod(LOG_FILE, 0600);
477 chown(LOG_FILE, 1000, 1000); // system user
Tao Baof0124322015-04-11 02:04:11 +0000478 chmod(LAST_KMSG_FILE, 0600);
479 chown(LAST_KMSG_FILE, 1000, 1000); // system user
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700480 chmod(LAST_LOG_FILE, 0640);
481 chmod(LAST_INSTALL_FILE, 0644);
482 sync();
483}
484
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800485// clear the recovery command and prepare to boot a (hopefully working) system,
Tianjie Xuc14d95d2016-03-24 11:50:34 -0700486// copy our log file to cache as well (for the system to read). This function is
487// idempotent: call it as many times as you like.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800488static void
Tianjie Xuc14d95d2016-03-24 11:50:34 -0700489finish_recovery() {
Doug Zongker4f33e552012-08-23 13:16:12 -0700490 // Save the locale to cache, so if recovery is next started up
491 // without a --locale argument (eg, directly from the bootloader)
492 // it will use the last-known locale.
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800493 if (locale != NULL) {
494 size_t len = strlen(locale);
495 __pmsg_write(LOCALE_FILE, locale, len);
496 if (has_cache) {
497 LOGI("Saving locale \"%s\"\n", locale);
498 FILE* fp = fopen_path(LOCALE_FILE, "w");
499 fwrite(locale, 1, len, fp);
500 fflush(fp);
501 fsync(fileno(fp));
502 check_and_fclose(fp, LOCALE_FILE);
503 }
Doug Zongker4f33e552012-08-23 13:16:12 -0700504 }
505
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700506 copy_logs();
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800507
Doug Zongkere5d5ac72012-04-12 11:01:22 -0700508 // Reset to normal system boot so recovery won't cycle indefinitely.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800509 struct bootloader_message boot;
510 memset(&boot, 0, sizeof(boot));
511 set_bootloader_message(&boot);
512
513 // Remove the command file, so recovery won't repeat indefinitely.
Tao Bao26112e52016-02-25 12:29:40 -0800514 if (has_cache) {
515 if (ensure_path_mounted(COMMAND_FILE) != 0 || (unlink(COMMAND_FILE) && errno != ENOENT)) {
516 LOGW("Can't unlink %s\n", COMMAND_FILE);
517 }
518 ensure_path_unmounted(CACHE_ROOT);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800519 }
520
521 sync(); // For good measure.
522}
523
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700524typedef struct _saved_log_file {
525 char* name;
526 struct stat st;
527 unsigned char* data;
528 struct _saved_log_file* next;
529} saved_log_file;
530
Elliott Hughes945548e2015-06-05 17:59:56 -0700531static bool erase_volume(const char* volume) {
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700532 bool is_cache = (strcmp(volume, CACHE_ROOT) == 0);
533
Doug Zongker02ec6b82012-08-22 17:26:40 -0700534 ui->SetBackground(RecoveryUI::ERASING);
Doug Zongker211aebc2011-10-28 15:13:10 -0700535 ui->SetProgressType(RecoveryUI::INDETERMINATE);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700536
537 saved_log_file* head = NULL;
538
539 if (is_cache) {
Tao Baobef39712015-05-04 18:50:27 -0700540 // If we're reformatting /cache, we load any past logs
541 // (i.e. "/cache/recovery/last_*") and the current log
542 // ("/cache/recovery/log") into memory, so we can restore them after
543 // the reformat.
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700544
545 ensure_path_mounted(volume);
546
547 DIR* d;
548 struct dirent* de;
549 d = opendir(CACHE_LOG_DIR);
550 if (d) {
551 char path[PATH_MAX];
552 strcpy(path, CACHE_LOG_DIR);
553 strcat(path, "/");
554 int path_len = strlen(path);
555 while ((de = readdir(d)) != NULL) {
Tao Baobef39712015-05-04 18:50:27 -0700556 if (strncmp(de->d_name, "last_", 5) == 0 || strcmp(de->d_name, "log") == 0) {
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700557 saved_log_file* p = (saved_log_file*) malloc(sizeof(saved_log_file));
558 strcpy(path+path_len, de->d_name);
559 p->name = strdup(path);
560 if (stat(path, &(p->st)) == 0) {
561 // truncate files to 512kb
562 if (p->st.st_size > (1 << 19)) {
563 p->st.st_size = 1 << 19;
564 }
565 p->data = (unsigned char*) malloc(p->st.st_size);
566 FILE* f = fopen(path, "rb");
567 fread(p->data, 1, p->st.st_size, f);
568 fclose(f);
569 p->next = head;
570 head = p;
571 } else {
572 free(p);
573 }
574 }
575 }
576 closedir(d);
577 } else {
578 if (errno != ENOENT) {
579 printf("opendir failed: %s\n", strerror(errno));
580 }
581 }
582 }
583
Doug Zongker211aebc2011-10-28 15:13:10 -0700584 ui->Print("Formatting %s...\n", volume);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700585
Doug Zongkerd0181b82011-10-19 10:51:12 -0700586 ensure_path_unmounted(volume);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700587 int result = format_volume(volume);
Doug Zongkerd0181b82011-10-19 10:51:12 -0700588
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700589 if (is_cache) {
590 while (head) {
591 FILE* f = fopen_path(head->name, "wb");
592 if (f) {
593 fwrite(head->data, 1, head->st.st_size, f);
594 fclose(f);
595 chmod(head->name, head->st.st_mode);
596 chown(head->name, head->st.st_uid, head->st.st_gid);
597 }
598 free(head->name);
599 free(head->data);
600 saved_log_file* temp = head->next;
601 free(head);
602 head = temp;
603 }
604
Tao Baof0124322015-04-11 02:04:11 +0000605 // 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;
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700609 copy_logs();
Doug Zongker2c3539e2010-09-29 13:21:30 -0700610 }
611
Elliott Hughes945548e2015-06-05 17:59:56 -0700612 return (result == 0);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800613}
614
Doug Zongkerf93d8162009-09-22 15:16:02 -0700615static int
Doug Zongker28ce47c2011-10-28 10:33:05 -0700616get_menu_selection(const char* const * headers, const char* const * items,
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700617 int menu_only, int initial_selection, Device* device) {
Doug Zongkerf93d8162009-09-22 15:16:02 -0700618 // throw away keys pressed previously, so user doesn't
619 // accidentally trigger menu items.
Doug Zongker211aebc2011-10-28 15:13:10 -0700620 ui->FlushKeys();
Doug Zongkerf93d8162009-09-22 15:16:02 -0700621
Doug Zongker211aebc2011-10-28 15:13:10 -0700622 ui->StartMenu(headers, items, initial_selection);
Doug Zongker8674a722010-09-15 11:08:23 -0700623 int selected = initial_selection;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800624 int chosen_item = -1;
625
Doug Zongkerf93d8162009-09-22 15:16:02 -0700626 while (chosen_item < 0) {
Doug Zongker211aebc2011-10-28 15:13:10 -0700627 int key = ui->WaitKey();
628 int visible = ui->IsTextVisible();
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800629
Doug Zongker5cae4452011-01-25 13:15:30 -0800630 if (key == -1) { // ui_wait_key() timed out
Doug Zongker211aebc2011-10-28 15:13:10 -0700631 if (ui->WasTextEverVisible()) {
Doug Zongker5cae4452011-01-25 13:15:30 -0800632 continue;
633 } else {
634 LOGI("timed out waiting for key input; rebooting.\n");
Doug Zongker211aebc2011-10-28 15:13:10 -0700635 ui->EndMenu();
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700636 return 0; // XXX fixme
Doug Zongker5cae4452011-01-25 13:15:30 -0800637 }
638 }
639
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700640 int action = device->HandleMenuKey(key, visible);
Doug Zongkerddd6a282009-06-09 12:22:33 -0700641
642 if (action < 0) {
643 switch (action) {
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700644 case Device::kHighlightUp:
Elliott Hughes642aaa72015-04-10 12:47:46 -0700645 selected = ui->SelectMenu(--selected);
Doug Zongkerddd6a282009-06-09 12:22:33 -0700646 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700647 case Device::kHighlightDown:
Elliott Hughes642aaa72015-04-10 12:47:46 -0700648 selected = ui->SelectMenu(++selected);
Doug Zongkerddd6a282009-06-09 12:22:33 -0700649 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700650 case Device::kInvokeItem:
Doug Zongkerddd6a282009-06-09 12:22:33 -0700651 chosen_item = selected;
652 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700653 case Device::kNoAction:
Doug Zongkerddd6a282009-06-09 12:22:33 -0700654 break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800655 }
Doug Zongkerf93d8162009-09-22 15:16:02 -0700656 } else if (!menu_only) {
Doug Zongkerddd6a282009-06-09 12:22:33 -0700657 chosen_item = action;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800658 }
Doug Zongkerf93d8162009-09-22 15:16:02 -0700659 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800660
Doug Zongker211aebc2011-10-28 15:13:10 -0700661 ui->EndMenu();
Doug Zongkerf93d8162009-09-22 15:16:02 -0700662 return chosen_item;
663}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800664
Doug Zongker8674a722010-09-15 11:08:23 -0700665static int compare_string(const void* a, const void* b) {
666 return strcmp(*(const char**)a, *(const char**)b);
667}
668
Doug Zongker93950222014-07-08 14:10:23 -0700669// Returns a malloc'd path, or NULL.
Elliott Hughes30694c92015-03-25 15:16:51 -0700670static char* browse_directory(const char* path, Device* device) {
Michael Ward9d2629c2011-06-23 22:14:24 -0700671 ensure_path_mounted(path);
Doug Zongkerc18eeb82010-09-21 16:49:26 -0700672
Elliott Hughes30694c92015-03-25 15:16:51 -0700673 DIR* d = opendir(path);
Doug Zongker8674a722010-09-15 11:08:23 -0700674 if (d == NULL) {
675 LOGE("error opening %s: %s\n", path, strerror(errno));
Doug Zongker93950222014-07-08 14:10:23 -0700676 return NULL;
Doug Zongker8674a722010-09-15 11:08:23 -0700677 }
678
Doug Zongker8674a722010-09-15 11:08:23 -0700679 int d_size = 0;
680 int d_alloc = 10;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700681 char** dirs = (char**)malloc(d_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700682 int z_size = 1;
683 int z_alloc = 10;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700684 char** zips = (char**)malloc(z_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700685 zips[0] = strdup("../");
686
Elliott Hughes30694c92015-03-25 15:16:51 -0700687 struct dirent* de;
Doug Zongker8674a722010-09-15 11:08:23 -0700688 while ((de = readdir(d)) != NULL) {
689 int name_len = strlen(de->d_name);
690
691 if (de->d_type == DT_DIR) {
692 // skip "." and ".." entries
693 if (name_len == 1 && de->d_name[0] == '.') continue;
694 if (name_len == 2 && de->d_name[0] == '.' &&
695 de->d_name[1] == '.') continue;
696
697 if (d_size >= d_alloc) {
698 d_alloc *= 2;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700699 dirs = (char**)realloc(dirs, d_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700700 }
Doug Zongker28ce47c2011-10-28 10:33:05 -0700701 dirs[d_size] = (char*)malloc(name_len + 2);
Doug Zongker8674a722010-09-15 11:08:23 -0700702 strcpy(dirs[d_size], de->d_name);
703 dirs[d_size][name_len] = '/';
704 dirs[d_size][name_len+1] = '\0';
705 ++d_size;
706 } else if (de->d_type == DT_REG &&
707 name_len >= 4 &&
708 strncasecmp(de->d_name + (name_len-4), ".zip", 4) == 0) {
709 if (z_size >= z_alloc) {
710 z_alloc *= 2;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700711 zips = (char**)realloc(zips, z_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700712 }
713 zips[z_size++] = strdup(de->d_name);
714 }
715 }
716 closedir(d);
717
718 qsort(dirs, d_size, sizeof(char*), compare_string);
719 qsort(zips, z_size, sizeof(char*), compare_string);
720
721 // append dirs to the zips list
722 if (d_size + z_size + 1 > z_alloc) {
723 z_alloc = d_size + z_size + 1;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700724 zips = (char**)realloc(zips, z_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700725 }
726 memcpy(zips + z_size, dirs, d_size * sizeof(char*));
727 free(dirs);
728 z_size += d_size;
729 zips[z_size] = NULL;
730
Elliott Hughes8fd86d72015-04-13 14:36:02 -0700731 const char* headers[] = { "Choose a package to install:", path, NULL };
Elliott Hughes30694c92015-03-25 15:16:51 -0700732
Doug Zongker93950222014-07-08 14:10:23 -0700733 char* result;
Doug Zongker8674a722010-09-15 11:08:23 -0700734 int chosen_item = 0;
Doug Zongker93950222014-07-08 14:10:23 -0700735 while (true) {
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700736 chosen_item = get_menu_selection(headers, zips, 1, chosen_item, device);
Doug Zongker8674a722010-09-15 11:08:23 -0700737
738 char* item = zips[chosen_item];
739 int item_len = strlen(item);
740 if (chosen_item == 0) { // item 0 is always "../"
Michael Ward9d2629c2011-06-23 22:14:24 -0700741 // go up but continue browsing (if the caller is update_directory)
Doug Zongker93950222014-07-08 14:10:23 -0700742 result = NULL;
Doug Zongker8674a722010-09-15 11:08:23 -0700743 break;
744 }
Doug Zongker93950222014-07-08 14:10:23 -0700745
746 char new_path[PATH_MAX];
747 strlcpy(new_path, path, PATH_MAX);
748 strlcat(new_path, "/", PATH_MAX);
749 strlcat(new_path, item, PATH_MAX);
750
751 if (item[item_len-1] == '/') {
752 // recurse down into a subdirectory
753 new_path[strlen(new_path)-1] = '\0'; // truncate the trailing '/'
754 result = browse_directory(new_path, device);
755 if (result) break;
756 } else {
757 // selected a zip file: return the malloc'd path to the caller.
758 result = strdup(new_path);
759 break;
760 }
761 }
Doug Zongker8674a722010-09-15 11:08:23 -0700762
Elliott Hughes30694c92015-03-25 15:16:51 -0700763 for (int i = 0; i < z_size; ++i) free(zips[i]);
Doug Zongker8674a722010-09-15 11:08:23 -0700764 free(zips);
Doug Zongker8674a722010-09-15 11:08:23 -0700765
766 return result;
767}
768
Elliott Hughes30694c92015-03-25 15:16:51 -0700769static bool yes_no(Device* device, const char* question1, const char* question2) {
Elliott Hughes8fd86d72015-04-13 14:36:02 -0700770 const char* headers[] = { question1, question2, NULL };
Elliott Hughes30694c92015-03-25 15:16:51 -0700771 const char* items[] = { " No", " Yes", NULL };
Doug Zongkerddd6a282009-06-09 12:22:33 -0700772
Elliott Hughes30694c92015-03-25 15:16:51 -0700773 int chosen_item = get_menu_selection(headers, items, 1, 0, device);
774 return (chosen_item == 1);
775}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800776
Tao Baoe39a9bc2015-03-31 12:19:05 -0700777// Return true on success.
778static bool wipe_data(int should_confirm, Device* device) {
779 if (should_confirm && !yes_no(device, "Wipe all user data?", " THIS CAN NOT BE UNDONE!")) {
780 return false;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700781 }
Doug Zongker1066d2c2009-04-01 13:57:40 -0700782
Tao Bao682c34b2015-04-07 17:16:35 -0700783 modified_flash = true;
784
Doug Zongker211aebc2011-10-28 15:13:10 -0700785 ui->Print("\n-- Wiping data...\n");
Elliott Hughes945548e2015-06-05 17:59:56 -0700786 bool success =
787 device->PreWipeData() &&
788 erase_volume("/data") &&
Tao Bao26112e52016-02-25 12:29:40 -0800789 (has_cache ? erase_volume("/cache") : true) &&
Elliott Hughes945548e2015-06-05 17:59:56 -0700790 device->PostWipeData();
791 ui->Print("Data wipe %s.\n", success ? "complete" : "failed");
792 return success;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700793}
794
Tao Baoe39a9bc2015-03-31 12:19:05 -0700795// Return true on success.
796static bool wipe_cache(bool should_confirm, Device* device) {
Tao Bao26112e52016-02-25 12:29:40 -0800797 if (!has_cache) {
798 ui->Print("No /cache partition found.\n");
799 return false;
800 }
801
Elliott Hughes30694c92015-03-25 15:16:51 -0700802 if (should_confirm && !yes_no(device, "Wipe cache?", " THIS CAN NOT BE UNDONE!")) {
Tao Baoe39a9bc2015-03-31 12:19:05 -0700803 return false;
Elliott Hughes30694c92015-03-25 15:16:51 -0700804 }
805
Tao Bao682c34b2015-04-07 17:16:35 -0700806 modified_flash = true;
807
Elliott Hughes30694c92015-03-25 15:16:51 -0700808 ui->Print("\n-- Wiping cache...\n");
Elliott Hughes945548e2015-06-05 17:59:56 -0700809 bool success = erase_volume("/cache");
810 ui->Print("Cache wipe %s.\n", success ? "complete" : "failed");
811 return success;
Elliott Hughes30694c92015-03-25 15:16:51 -0700812}
813
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700814static void choose_recovery_file(Device* device) {
Tao Bao26112e52016-02-25 12:29:40 -0800815 if (!has_cache) {
816 ui->Print("No /cache partition found.\n");
817 return;
818 }
819
Elliott Hughesc0491632015-05-06 12:40:05 -0700820 // "Back" + KEEP_LOG_COUNT * 2 + terminating nullptr entry
821 char* entries[1 + KEEP_LOG_COUNT * 2 + 1];
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700822 memset(entries, 0, sizeof(entries));
823
Tao Baobef39712015-05-04 18:50:27 -0700824 unsigned int n = 0;
Patrick Tjincd055ee2014-12-09 11:26:40 -0800825
Patrick Tjincd055ee2014-12-09 11:26:40 -0800826 // Add LAST_LOG_FILE + LAST_LOG_FILE.x
Tao Baobef39712015-05-04 18:50:27 -0700827 // Add LAST_KMSG_FILE + LAST_KMSG_FILE.x
828 for (int i = 0; i < KEEP_LOG_COUNT; i++) {
829 char* log_file;
Tao Bao80e46e02015-06-03 10:49:29 -0700830 int ret;
831 ret = (i == 0) ? asprintf(&log_file, "%s", LAST_LOG_FILE) :
832 asprintf(&log_file, "%s.%d", LAST_LOG_FILE, i);
833 if (ret == -1) {
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700834 // memory allocation failure - return early. Should never happen.
835 return;
836 }
Tao Baobef39712015-05-04 18:50:27 -0700837 if ((ensure_path_mounted(log_file) != 0) || (access(log_file, R_OK) == -1)) {
838 free(log_file);
839 } else {
840 entries[n++] = log_file;
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700841 }
Tao Baobef39712015-05-04 18:50:27 -0700842
843 char* kmsg_file;
Tao Bao80e46e02015-06-03 10:49:29 -0700844 ret = (i == 0) ? asprintf(&kmsg_file, "%s", LAST_KMSG_FILE) :
845 asprintf(&kmsg_file, "%s.%d", LAST_KMSG_FILE, i);
846 if (ret == -1) {
Tao Baobef39712015-05-04 18:50:27 -0700847 // memory allocation failure - return early. Should never happen.
848 return;
849 }
850 if ((ensure_path_mounted(kmsg_file) != 0) || (access(kmsg_file, R_OK) == -1)) {
851 free(kmsg_file);
852 } else {
853 entries[n++] = kmsg_file;
854 }
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700855 }
856
Elliott Hughesc0491632015-05-06 12:40:05 -0700857 entries[n++] = strdup("Back");
858
Tao Baobef39712015-05-04 18:50:27 -0700859 const char* headers[] = { "Select file to view", nullptr };
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700860
Elliott Hughes8de52072015-04-08 20:06:50 -0700861 while (true) {
Elliott Hughes30694c92015-03-25 15:16:51 -0700862 int chosen_item = get_menu_selection(headers, entries, 1, 0, device);
Elliott Hughesc0491632015-05-06 12:40:05 -0700863 if (strcmp(entries[chosen_item], "Back") == 0) break;
Elliott Hughes8de52072015-04-08 20:06:50 -0700864
Elliott Hughes8de52072015-04-08 20:06:50 -0700865 ui->ShowFile(entries[chosen_item]);
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700866 }
867
Tao Baobef39712015-05-04 18:50:27 -0700868 for (size_t i = 0; i < (sizeof(entries) / sizeof(*entries)); i++) {
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700869 free(entries[i]);
870 }
871}
872
Tao Baocdcf28f2016-01-13 15:05:20 -0800873// How long (in seconds) we wait for the fuse-provided package file to
874// appear, before timing out.
875#define SDCARD_INSTALL_TIMEOUT 10
876
Tao Bao145d8612015-03-25 15:51:15 -0700877static int apply_from_sdcard(Device* device, bool* wipe_cache) {
Tao Bao682c34b2015-04-07 17:16:35 -0700878 modified_flash = true;
879
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000880 if (ensure_path_mounted(SDCARD_ROOT) != 0) {
881 ui->Print("\n-- Couldn't mount %s.\n", SDCARD_ROOT);
882 return INSTALL_ERROR;
883 }
884
885 char* path = browse_directory(SDCARD_ROOT, device);
886 if (path == NULL) {
Elliott Hughes018ed312015-04-08 16:51:36 -0700887 ui->Print("\n-- No package file selected.\n");
caozhiyuanb4effb92015-06-10 16:46:38 +0800888 ensure_path_unmounted(SDCARD_ROOT);
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000889 return INSTALL_ERROR;
890 }
891
892 ui->Print("\n-- Install %s ...\n", path);
893 set_sdcard_update_bootloader_message();
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000894
Tao Baocdcf28f2016-01-13 15:05:20 -0800895 // We used to use fuse in a thread as opposed to a process. Since accessing
896 // through fuse involves going from kernel to userspace to kernel, it leads
897 // to deadlock when a page fault occurs. (Bug: 26313124)
898 pid_t child;
899 if ((child = fork()) == 0) {
900 bool status = start_sdcard_fuse(path);
901
902 _exit(status ? EXIT_SUCCESS : EXIT_FAILURE);
903 }
904
905 // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the fuse in child
906 // process is ready.
907 int result = INSTALL_ERROR;
908 int status;
909 bool waited = false;
910 for (int i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) {
911 if (waitpid(child, &status, WNOHANG) == -1) {
912 result = INSTALL_ERROR;
913 waited = true;
914 break;
915 }
916
917 struct stat sb;
918 if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &sb) == -1) {
919 if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) {
920 sleep(1);
921 continue;
922 } else {
923 LOGE("Timed out waiting for the fuse-provided package.\n");
924 result = INSTALL_ERROR;
925 kill(child, SIGKILL);
926 break;
927 }
928 }
929
930 result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache,
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000931 TEMPORARY_INSTALL_FILE, false);
Tao Baocdcf28f2016-01-13 15:05:20 -0800932 break;
933 }
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000934
Tao Baocdcf28f2016-01-13 15:05:20 -0800935 if (!waited) {
936 // Calling stat() on this magic filename signals the fuse
937 // filesystem to shut down.
938 struct stat sb;
939 stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &sb);
940
941 waitpid(child, &status, 0);
942 }
943
944 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
945 LOGE("Error exit from the fuse process: %d\n", WEXITSTATUS(status));
946 }
947
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000948 ensure_path_unmounted(SDCARD_ROOT);
Tao Baocdcf28f2016-01-13 15:05:20 -0800949 return result;
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000950}
951
Doug Zongker8d9d3d52014-04-01 13:20:23 -0700952// Return REBOOT, SHUTDOWN, or REBOOT_BOOTLOADER. Returning NO_ACTION
953// means to take the default, which is to reboot or shutdown depending
954// on if the --shutdown_after flag was passed to recovery.
955static Device::BuiltinAction
Doug Zongker6c8553d2012-09-24 10:40:47 -0700956prompt_and_wait(Device* device, int status) {
Doug Zongkerf93d8162009-09-22 15:16:02 -0700957 for (;;) {
Tianjie Xuc14d95d2016-03-24 11:50:34 -0700958 finish_recovery();
Doug Zongker6c8553d2012-09-24 10:40:47 -0700959 switch (status) {
960 case INSTALL_SUCCESS:
961 case INSTALL_NONE:
962 ui->SetBackground(RecoveryUI::NO_COMMAND);
963 break;
964
965 case INSTALL_ERROR:
966 case INSTALL_CORRUPT:
967 ui->SetBackground(RecoveryUI::ERROR);
968 break;
969 }
Doug Zongker211aebc2011-10-28 15:13:10 -0700970 ui->SetProgressType(RecoveryUI::EMPTY);
Doug Zongkerf93d8162009-09-22 15:16:02 -0700971
Elliott Hughes8fd86d72015-04-13 14:36:02 -0700972 int chosen_item = get_menu_selection(nullptr, device->GetMenuItems(), 0, 0, device);
Doug Zongkerf93d8162009-09-22 15:16:02 -0700973
974 // device-specific code may take some action here. It may
975 // return one of the core actions handled in the switch
976 // statement below.
Doug Zongker8d9d3d52014-04-01 13:20:23 -0700977 Device::BuiltinAction chosen_action = device->InvokeMenuItem(chosen_item);
Doug Zongkerf93d8162009-09-22 15:16:02 -0700978
Elliott Hughes30694c92015-03-25 15:16:51 -0700979 bool should_wipe_cache = false;
Doug Zongker8d9d3d52014-04-01 13:20:23 -0700980 switch (chosen_action) {
981 case Device::NO_ACTION:
982 break;
983
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700984 case Device::REBOOT:
Doug Zongker8d9d3d52014-04-01 13:20:23 -0700985 case Device::SHUTDOWN:
986 case Device::REBOOT_BOOTLOADER:
987 return chosen_action;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700988
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700989 case Device::WIPE_DATA:
990 wipe_data(ui->IsTextVisible(), device);
Doug Zongker8d9d3d52014-04-01 13:20:23 -0700991 if (!ui->IsTextVisible()) return Device::NO_ACTION;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700992 break;
993
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700994 case Device::WIPE_CACHE:
Elliott Hughes30694c92015-03-25 15:16:51 -0700995 wipe_cache(ui->IsTextVisible(), device);
Doug Zongker8d9d3d52014-04-01 13:20:23 -0700996 if (!ui->IsTextVisible()) return Device::NO_ACTION;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700997 break;
998
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000999 case Device::APPLY_ADB_SIDELOAD:
Elliott Hughesec283402015-04-10 10:01:53 -07001000 case Device::APPLY_SDCARD:
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001001 {
1002 bool adb = (chosen_action == Device::APPLY_ADB_SIDELOAD);
1003 if (adb) {
Elliott Hughes30694c92015-03-25 15:16:51 -07001004 status = apply_from_adb(ui, &should_wipe_cache, TEMPORARY_INSTALL_FILE);
Doug Zongkerd0181b82011-10-19 10:51:12 -07001005 } else {
Elliott Hughes30694c92015-03-25 15:16:51 -07001006 status = apply_from_sdcard(device, &should_wipe_cache);
Doug Zongkerd0181b82011-10-19 10:51:12 -07001007 }
Doug Zongker945fc682014-07-10 10:50:39 -07001008
Elliott Hughes30694c92015-03-25 15:16:51 -07001009 if (status == INSTALL_SUCCESS && should_wipe_cache) {
Tao Baoe39a9bc2015-03-31 12:19:05 -07001010 if (!wipe_cache(false, device)) {
1011 status = INSTALL_ERROR;
1012 }
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001013 }
1014
Tao Baoc679f932015-03-30 09:43:49 -07001015 if (status != INSTALL_SUCCESS) {
1016 ui->SetBackground(RecoveryUI::ERROR);
1017 ui->Print("Installation aborted.\n");
1018 copy_logs();
1019 } else if (!ui->IsTextVisible()) {
1020 return Device::NO_ACTION; // reboot if logs aren't visible
1021 } else {
1022 ui->Print("\nInstall from %s complete.\n", adb ? "ADB" : "SD card");
Doug Zongker8674a722010-09-15 11:08:23 -07001023 }
Doug Zongkerf93d8162009-09-22 15:16:02 -07001024 }
1025 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001026
Elliott Hughesec283402015-04-10 10:01:53 -07001027 case Device::VIEW_RECOVERY_LOGS:
1028 choose_recovery_file(device);
Michael Ward9d2629c2011-06-23 22:14:24 -07001029 break;
Doug Zongker9270a202012-01-09 15:16:13 -08001030
Elliott Hughesec283402015-04-10 10:01:53 -07001031 case Device::MOUNT_SYSTEM:
Tao Baoabb8f772015-07-30 14:43:27 -07001032 char system_root_image[PROPERTY_VALUE_MAX];
1033 property_get("ro.build.system_root_image", system_root_image, "");
1034
1035 // For a system image built with the root directory (i.e.
1036 // system_root_image == "true"), we mount it to /system_root, and symlink /system
1037 // to /system_root/system to make adb shell work (the symlink is created through
1038 // the build system).
1039 // Bug: 22855115
1040 if (strcmp(system_root_image, "true") == 0) {
1041 if (ensure_path_mounted_at("/", "/system_root") != -1) {
1042 ui->Print("Mounted /system.\n");
1043 }
1044 } else {
1045 if (ensure_path_mounted("/system") != -1) {
1046 ui->Print("Mounted /system.\n");
1047 }
Elliott Hughesec283402015-04-10 10:01:53 -07001048 }
Tao Baoabb8f772015-07-30 14:43:27 -07001049
Nick Kralevicha9ad0322014-10-22 18:38:48 -07001050 break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001051 }
1052 }
1053}
1054
1055static void
Oscar Montemayor05231562009-11-30 08:40:57 -08001056print_property(const char *key, const char *name, void *cookie) {
Doug Zongker56c51052010-07-01 09:18:44 -07001057 printf("%s=%s\n", key, name);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001058}
1059
Doug Zongker02ec6b82012-08-22 17:26:40 -07001060static void
1061load_locale_from_cache() {
1062 FILE* fp = fopen_path(LOCALE_FILE, "r");
1063 char buffer[80];
1064 if (fp != NULL) {
1065 fgets(buffer, sizeof(buffer), fp);
1066 int j = 0;
Doug Zongker5fa8c232012-09-18 12:37:02 -07001067 unsigned int i;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001068 for (i = 0; i < sizeof(buffer) && buffer[i]; ++i) {
1069 if (!isspace(buffer[i])) {
1070 buffer[j++] = buffer[i];
1071 }
1072 }
1073 buffer[j] = 0;
1074 locale = strdup(buffer);
Devin Kim6016d082012-10-08 09:47:37 -07001075 check_and_fclose(fp, LOCALE_FILE);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001076 }
1077}
1078
Doug Zongker7c3ae452013-05-14 11:03:02 -07001079static RecoveryUI* gCurrentUI = NULL;
1080
1081void
1082ui_print(const char* format, ...) {
1083 char buffer[256];
1084
1085 va_list ap;
1086 va_start(ap, format);
1087 vsnprintf(buffer, sizeof(buffer), format, ap);
1088 va_end(ap);
1089
1090 if (gCurrentUI != NULL) {
1091 gCurrentUI->Print("%s", buffer);
1092 } else {
1093 fputs(buffer, stdout);
1094 }
1095}
1096
Yabin Cui53e7a062016-02-17 12:21:52 -08001097static bool is_battery_ok() {
1098 struct healthd_config healthd_config = {
1099 .batteryStatusPath = android::String8(android::String8::kEmptyString),
1100 .batteryHealthPath = android::String8(android::String8::kEmptyString),
1101 .batteryPresentPath = android::String8(android::String8::kEmptyString),
1102 .batteryCapacityPath = android::String8(android::String8::kEmptyString),
1103 .batteryVoltagePath = android::String8(android::String8::kEmptyString),
1104 .batteryTemperaturePath = android::String8(android::String8::kEmptyString),
1105 .batteryTechnologyPath = android::String8(android::String8::kEmptyString),
1106 .batteryCurrentNowPath = android::String8(android::String8::kEmptyString),
1107 .batteryCurrentAvgPath = android::String8(android::String8::kEmptyString),
1108 .batteryChargeCounterPath = android::String8(android::String8::kEmptyString),
1109 .batteryFullChargePath = android::String8(android::String8::kEmptyString),
1110 .batteryCycleCountPath = android::String8(android::String8::kEmptyString),
1111 .energyCounter = NULL,
1112 .boot_min_cap = 0,
1113 .screen_on = NULL
1114 };
1115 healthd_board_init(&healthd_config);
1116
1117 android::BatteryMonitor monitor;
1118 monitor.init(&healthd_config);
1119
1120 int wait_second = 0;
1121 while (true) {
1122 int charge_status = monitor.getChargeStatus();
1123 // Treat unknown status as charged.
1124 bool charged = (charge_status != android::BATTERY_STATUS_DISCHARGING &&
1125 charge_status != android::BATTERY_STATUS_NOT_CHARGING);
1126 android::BatteryProperty capacity;
1127 android::status_t status = monitor.getProperty(android::BATTERY_PROP_CAPACITY, &capacity);
1128 ui_print("charge_status %d, charged %d, status %d, capacity %lld\n", charge_status,
1129 charged, status, capacity.valueInt64);
1130 // At startup, the battery drivers in devices like N5X/N6P take some time to load
1131 // the battery profile. Before the load finishes, it reports value 50 as a fake
1132 // capacity. BATTERY_READ_TIMEOUT_IN_SEC is set that the battery drivers are expected
1133 // to finish loading the battery profile earlier than 10 seconds after kernel startup.
1134 if (status == 0 && capacity.valueInt64 == 50) {
1135 if (wait_second < BATTERY_READ_TIMEOUT_IN_SEC) {
1136 sleep(1);
1137 wait_second++;
1138 continue;
1139 }
1140 }
1141 // If we can't read battery percentage, it may be a device without battery. In this
1142 // situation, use 100 as a fake battery percentage.
1143 if (status != 0) {
1144 capacity.valueInt64 = 100;
1145 }
1146 return (charged && capacity.valueInt64 >= BATTERY_WITH_CHARGER_OK_PERCENTAGE) ||
1147 (!charged && capacity.valueInt64 >= BATTERY_OK_PERCENTAGE);
1148 }
1149}
1150
Tianjie Xu3c62b672016-02-05 18:25:58 -08001151static void set_retry_bootloader_message(int retry_count, int argc, char** argv) {
1152 struct bootloader_message boot {};
1153 strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
1154 strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
1155
1156 for (int i = 1; i < argc; ++i) {
1157 if (strstr(argv[i], "retry_count") == nullptr) {
1158 strlcat(boot.recovery, argv[i], sizeof(boot.recovery));
1159 strlcat(boot.recovery, "\n", sizeof(boot.recovery));
1160 }
1161 }
1162
1163 // Initialize counter to 1 if it's not in BCB, otherwise increment it by 1.
1164 if (retry_count == 0) {
1165 strlcat(boot.recovery, "--retry_count=1\n", sizeof(boot.recovery));
1166 } else {
1167 char buffer[20];
1168 snprintf(buffer, sizeof(buffer), "--retry_count=%d\n", retry_count+1);
1169 strlcat(boot.recovery, buffer, sizeof(boot.recovery));
1170 }
1171 set_bootloader_message(&boot);
1172}
1173
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001174static ssize_t logbasename(
1175 log_id_t /* logId */,
1176 char /* prio */,
1177 const char *filename,
1178 const char * /* buf */, size_t len,
1179 void *arg) {
1180 if (strstr(LAST_KMSG_FILE, filename) ||
1181 strstr(LAST_LOG_FILE, filename)) {
1182 bool *doRotate = reinterpret_cast<bool *>(arg);
1183 *doRotate = true;
1184 }
1185 return len;
1186}
1187
1188static ssize_t logrotate(
1189 log_id_t logId,
1190 char prio,
1191 const char *filename,
1192 const char *buf, size_t len,
1193 void *arg) {
1194 bool *doRotate = reinterpret_cast<bool *>(arg);
1195 if (!*doRotate) {
1196 return __android_log_pmsg_file_write(logId, prio, filename, buf, len);
1197 }
1198
1199 std::string name(filename);
1200 size_t dot = name.find_last_of(".");
1201 std::string sub = name.substr(0, dot);
1202
1203 if (!strstr(LAST_KMSG_FILE, sub.c_str()) &&
1204 !strstr(LAST_LOG_FILE, sub.c_str())) {
1205 return __android_log_pmsg_file_write(logId, prio, filename, buf, len);
1206 }
1207
1208 // filename rotation
1209 if (dot == std::string::npos) {
1210 name += ".1";
1211 } else {
1212 std::string number = name.substr(dot + 1);
1213 if (!isdigit(number.data()[0])) {
1214 name += ".1";
1215 } else {
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -07001216 auto i = std::stoull(number);
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001217 name = sub + "." + std::to_string(i + 1);
1218 }
1219 }
1220
1221 return __android_log_pmsg_file_write(logId, prio, name.c_str(), buf, len);
1222}
1223
Yabin Cui53e7a062016-02-17 12:21:52 -08001224int main(int argc, char **argv) {
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001225 // Take last pmsg contents and rewrite it to the current pmsg session.
1226 static const char filter[] = "recovery/";
1227 // Do we need to rotate?
1228 bool doRotate = false;
1229 __android_log_pmsg_file_read(
1230 LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter,
1231 logbasename, &doRotate);
1232 // Take action to refresh pmsg contents
1233 __android_log_pmsg_file_read(
1234 LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter,
1235 logrotate, &doRotate);
1236
Doug Zongker9270a202012-01-09 15:16:13 -08001237 // If this binary is started with the single argument "--adbd",
1238 // instead of being the normal recovery binary, it turns into kind
1239 // of a stripped-down version of adbd that only supports the
1240 // 'sideload' command. Note this must be a real argument, not
1241 // anything in the command file or bootloader control block; the
1242 // only way recovery should be run with this argument is when it
1243 // starts a copy of itself from the apply_from_adb() function.
1244 if (argc == 2 && strcmp(argv[1], "--adbd") == 0) {
Elliott Hughes9f4fdb32015-11-20 13:03:24 -08001245 adb_server_main(0, DEFAULT_ADB_PORT, -1);
Doug Zongker9270a202012-01-09 15:16:13 -08001246 return 0;
1247 }
1248
Tao Bao04ca4262015-09-10 15:32:24 -07001249 time_t start = time(NULL);
1250
1251 // redirect_stdio should be called only in non-sideload mode. Otherwise
1252 // we may have two logger instances with different timestamps.
1253 redirect_stdio(TEMPORARY_LOG_FILE);
1254
Doug Zongker19a8e242014-01-21 09:25:41 -08001255 printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start));
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001256
Doug Zongkerd4208f92010-09-20 12:16:13 -07001257 load_volume_table();
Tao Bao26112e52016-02-25 12:29:40 -08001258 has_cache = volume_for_path(CACHE_ROOT) != nullptr;
1259
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001260 get_args(&argc, &argv);
1261
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001262 const char *update_package = NULL;
Tao Baoe39a9bc2015-03-31 12:19:05 -07001263 bool should_wipe_data = false;
Tao Baoc679f932015-03-30 09:43:49 -07001264 bool should_wipe_cache = false;
Tao Bao145d8612015-03-25 15:51:15 -07001265 bool show_text = false;
Tao Baoc679f932015-03-30 09:43:49 -07001266 bool sideload = false;
1267 bool sideload_auto_reboot = false;
Doug Zongkere5d5ac72012-04-12 11:01:22 -07001268 bool just_exit = false;
Doug Zongkerb1d12632014-03-18 10:32:12 -07001269 bool shutdown_after = false;
Tianjie Xu3c62b672016-02-05 18:25:58 -08001270 int retry_count = 0;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001271
1272 int arg;
1273 while ((arg = getopt_long(argc, argv, "", OPTIONS, NULL)) != -1) {
1274 switch (arg) {
Tianjie Xu3c62b672016-02-05 18:25:58 -08001275 case 'n': android::base::ParseInt(optarg, &retry_count, 0); break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001276 case 'u': update_package = optarg; break;
Tao Baoe39a9bc2015-03-31 12:19:05 -07001277 case 'w': should_wipe_data = true; break;
Tao Baoc679f932015-03-30 09:43:49 -07001278 case 'c': should_wipe_cache = true; break;
Tao Bao145d8612015-03-25 15:51:15 -07001279 case 't': show_text = true; break;
Tao Baoc679f932015-03-30 09:43:49 -07001280 case 's': sideload = true; break;
1281 case 'a': sideload = true; sideload_auto_reboot = true; break;
Doug Zongkere5d5ac72012-04-12 11:01:22 -07001282 case 'x': just_exit = true; break;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001283 case 'l': locale = optarg; break;
Doug Zongkerc87bab12013-11-25 13:53:25 -08001284 case 'g': {
1285 if (stage == NULL || *stage == '\0') {
1286 char buffer[20] = "1/";
1287 strncat(buffer, optarg, sizeof(buffer)-3);
1288 stage = strdup(buffer);
1289 }
1290 break;
1291 }
Doug Zongkerb1d12632014-03-18 10:32:12 -07001292 case 'p': shutdown_after = true; break;
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -07001293 case 'r': reason = optarg; break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001294 case '?':
1295 LOGE("Invalid command argument\n");
1296 continue;
1297 }
1298 }
1299
Tao Bao26112e52016-02-25 12:29:40 -08001300 if (locale == nullptr && has_cache) {
Doug Zongker02ec6b82012-08-22 17:26:40 -07001301 load_locale_from_cache();
1302 }
1303 printf("locale is [%s]\n", locale);
Doug Zongker0d32f252014-02-13 15:07:56 -08001304 printf("stage is [%s]\n", stage);
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -07001305 printf("reason is [%s]\n", reason);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001306
1307 Device* device = make_device();
1308 ui = device->GetUI();
Doug Zongker7c3ae452013-05-14 11:03:02 -07001309 gCurrentUI = ui;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001310
Doug Zongker5fa8c232012-09-18 12:37:02 -07001311 ui->SetLocale(locale);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001312 ui->Init();
Doug Zongkerc87bab12013-11-25 13:53:25 -08001313
1314 int st_cur, st_max;
1315 if (stage != NULL && sscanf(stage, "%d/%d", &st_cur, &st_max) == 2) {
1316 ui->SetStage(st_cur, st_max);
1317 }
1318
Doug Zongker02ec6b82012-08-22 17:26:40 -07001319 ui->SetBackground(RecoveryUI::NONE);
1320 if (show_text) ui->ShowText(true);
1321
Stephen Smalley779701d2012-02-09 14:13:23 -05001322 struct selinux_opt seopts[] = {
1323 { SELABEL_OPT_PATH, "/file_contexts" }
1324 };
1325
1326 sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
1327
1328 if (!sehandle) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001329 ui->Print("Warning: No file_contexts\n");
Stephen Smalley779701d2012-02-09 14:13:23 -05001330 }
Stephen Smalley779701d2012-02-09 14:13:23 -05001331
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001332 device->StartRecovery();
Doug Zongkerefa1bab2010-02-01 15:59:12 -08001333
Doug Zongker56c51052010-07-01 09:18:44 -07001334 printf("Command:");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001335 for (arg = 0; arg < argc; arg++) {
Doug Zongker56c51052010-07-01 09:18:44 -07001336 printf(" \"%s\"", argv[arg]);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001337 }
Doug Zongker9b125b02010-09-22 12:01:37 -07001338 printf("\n");
1339
1340 if (update_package) {
1341 // For backwards compatibility on the cache partition only, if
1342 // we're given an old 'root' path "CACHE:foo", change it to
1343 // "/cache/foo".
1344 if (strncmp(update_package, "CACHE:", 6) == 0) {
1345 int len = strlen(update_package) + 10;
Doug Zongker28ce47c2011-10-28 10:33:05 -07001346 char* modified_path = (char*)malloc(len);
Jeremy Compostella1b7d9b72015-07-29 17:17:03 +02001347 if (modified_path) {
1348 strlcpy(modified_path, "/cache/", len);
1349 strlcat(modified_path, update_package+6, len);
1350 printf("(replacing path \"%s\" with \"%s\")\n",
1351 update_package, modified_path);
1352 update_package = modified_path;
1353 }
1354 else
1355 printf("modified_path allocation failed\n");
Doug Zongker9b125b02010-09-22 12:01:37 -07001356 }
1357 }
1358 printf("\n");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001359
1360 property_list(print_property, NULL);
Doug Zongker56c51052010-07-01 09:18:44 -07001361 printf("\n");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001362
Elliott Hughesbb78d622015-04-09 20:51:08 -07001363 ui->Print("Supported API: %d\n", RECOVERY_API_VERSION);
1364
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001365 int status = INSTALL_SUCCESS;
1366
Doug Zongker540d57f2011-01-18 13:36:58 -08001367 if (update_package != NULL) {
Tao Bao37c45022016-04-29 15:37:05 -07001368 // It's not entirely true that we will modify the flash. But we want
1369 // to log the update attempt since update_package is non-NULL.
1370 modified_flash = true;
1371
Yabin Cui53e7a062016-02-17 12:21:52 -08001372 if (!is_battery_ok()) {
1373 ui->Print("battery capacity is not enough for installing package, needed is %d%%\n",
1374 BATTERY_OK_PERCENTAGE);
1375 status = INSTALL_SKIPPED;
1376 } else {
1377 status = install_package(update_package, &should_wipe_cache,
1378 TEMPORARY_INSTALL_FILE, true);
1379 if (status == INSTALL_SUCCESS && should_wipe_cache) {
1380 wipe_cache(false, device);
1381 }
1382 if (status != INSTALL_SUCCESS) {
1383 ui->Print("Installation aborted.\n");
Tianjie Xu3c62b672016-02-05 18:25:58 -08001384 // When I/O error happens, reboot and retry installation EIO_RETRY_COUNT
1385 // times before we abandon this OTA update.
1386 if (status == INSTALL_RETRY && retry_count < EIO_RETRY_COUNT) {
1387 copy_logs();
1388 set_retry_bootloader_message(retry_count, argc, argv);
1389 // Print retry count on screen.
1390 ui->Print("Retry attempt %d\n", retry_count);
Doug Zongker7c3ae452013-05-14 11:03:02 -07001391
Tianjie Xu3c62b672016-02-05 18:25:58 -08001392 // Reboot and retry the update
1393 int ret = property_set(ANDROID_RB_PROPERTY, "reboot,recovery");
1394 if (ret < 0) {
1395 ui->Print("Reboot failed\n");
1396 } else {
1397 while (true) {
1398 pause();
1399 }
1400 }
1401 }
Yabin Cui53e7a062016-02-17 12:21:52 -08001402 // If this is an eng or userdebug build, then automatically
1403 // turn the text display on if the script fails so the error
1404 // message is visible.
1405 if (is_ro_debuggable()) {
1406 ui->ShowText(true);
1407 }
Doug Zongker7c3ae452013-05-14 11:03:02 -07001408 }
1409 }
Tao Baoe39a9bc2015-03-31 12:19:05 -07001410 } else if (should_wipe_data) {
1411 if (!wipe_data(false, device)) {
1412 status = INSTALL_ERROR;
1413 }
Tao Baoc679f932015-03-30 09:43:49 -07001414 } else if (should_wipe_cache) {
Tao Baoe39a9bc2015-03-31 12:19:05 -07001415 if (!wipe_cache(false, device)) {
1416 status = INSTALL_ERROR;
1417 }
Tao Baoc679f932015-03-30 09:43:49 -07001418 } else if (sideload) {
1419 // 'adb reboot sideload' acts the same as user presses key combinations
1420 // to enter the sideload mode. When 'sideload-auto-reboot' is used, text
1421 // display will NOT be turned on by default. And it will reboot after
1422 // sideload finishes even if there are errors. Unless one turns on the
1423 // text display during the installation. This is to enable automated
1424 // testing.
1425 if (!sideload_auto_reboot) {
1426 ui->ShowText(true);
1427 }
1428 status = apply_from_adb(ui, &should_wipe_cache, TEMPORARY_INSTALL_FILE);
1429 if (status == INSTALL_SUCCESS && should_wipe_cache) {
Tao Baoe39a9bc2015-03-31 12:19:05 -07001430 if (!wipe_cache(false, device)) {
1431 status = INSTALL_ERROR;
1432 }
Tao Baoc679f932015-03-30 09:43:49 -07001433 }
1434 ui->Print("\nInstall from ADB complete (status: %d).\n", status);
1435 if (sideload_auto_reboot) {
1436 ui->Print("Rebooting automatically.\n");
1437 }
Doug Zongkere5d5ac72012-04-12 11:01:22 -07001438 } else if (!just_exit) {
Doug Zongker02ec6b82012-08-22 17:26:40 -07001439 status = INSTALL_NONE; // No command specified
1440 ui->SetBackground(RecoveryUI::NO_COMMAND);
Tao Bao785d22c2015-05-04 09:34:29 -07001441
1442 // http://b/17489952
1443 // If this is an eng or userdebug build, automatically turn on the
1444 // text display if no command is specified.
1445 if (is_ro_debuggable()) {
1446 ui->ShowText(true);
1447 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001448 }
1449
Tao Baoc679f932015-03-30 09:43:49 -07001450 if (!sideload_auto_reboot && (status == INSTALL_ERROR || status == INSTALL_CORRUPT)) {
Doug Zongkerf24fd7e2013-07-02 11:43:25 -07001451 copy_logs();
Doug Zongker02ec6b82012-08-22 17:26:40 -07001452 ui->SetBackground(RecoveryUI::ERROR);
1453 }
Tao Baoc679f932015-03-30 09:43:49 -07001454
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001455 Device::BuiltinAction after = shutdown_after ? Device::SHUTDOWN : Device::REBOOT;
Yabin Cui53e7a062016-02-17 12:21:52 -08001456 if ((status != INSTALL_SUCCESS && status != INSTALL_SKIPPED && !sideload_auto_reboot) ||
1457 ui->IsTextVisible()) {
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001458 Device::BuiltinAction temp = prompt_and_wait(device, status);
Tao Baoc679f932015-03-30 09:43:49 -07001459 if (temp != Device::NO_ACTION) {
1460 after = temp;
1461 }
Doug Zongker8674a722010-09-15 11:08:23 -07001462 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001463
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001464 // Save logs and clean up before rebooting or shutting down.
Tianjie Xuc14d95d2016-03-24 11:50:34 -07001465 finish_recovery();
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001466
1467 switch (after) {
1468 case Device::SHUTDOWN:
1469 ui->Print("Shutting down...\n");
1470 property_set(ANDROID_RB_PROPERTY, "shutdown,");
1471 break;
1472
1473 case Device::REBOOT_BOOTLOADER:
1474 ui->Print("Rebooting to bootloader...\n");
1475 property_set(ANDROID_RB_PROPERTY, "reboot,bootloader");
1476 break;
1477
1478 default:
1479 ui->Print("Rebooting...\n");
1480 property_set(ANDROID_RB_PROPERTY, "reboot,");
1481 break;
Doug Zongkerb1d12632014-03-18 10:32:12 -07001482 }
Tao Bao75238632015-05-27 14:46:17 -07001483 while (true) {
1484 pause();
1485 }
1486 // Should be unreachable.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001487 return EXIT_SUCCESS;
1488}