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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 Bao04ca4262015-09-10 15:32:24 -070037#include <chrono>
Tao Bao862a4c12016-06-02 11:16:50 -070038#include <string>
39#include <vector>
Tao Bao04ca4262015-09-10 15:32:24 -070040
Tao Bao75238632015-05-27 14:46:17 -070041#include <adb.h>
Mark Salyzyna4f701a2016-03-09 14:58:16 -080042#include <android/log.h> /* Android Log Priority Tags */
Elliott Hughes4b166f02015-12-04 15:30:20 -080043#include <android-base/file.h>
Tianjie Xu3c62b672016-02-05 18:25:58 -080044#include <android-base/parseint.h>
Elliott Hughes4b166f02015-12-04 15:30:20 -080045#include <android-base/stringprintf.h>
Tao Bao862a4c12016-06-02 11:16:50 -070046#include <android-base/strings.h>
47#include <android-base/unique_fd.h>
Tao Bao75238632015-05-27 14:46:17 -070048#include <cutils/android_reboot.h>
49#include <cutils/properties.h>
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070050#include <healthd/BatteryMonitor.h>
Mark Salyzyna4f701a2016-03-09 14:58:16 -080051#include <log/logger.h> /* Android Log packet format */
52#include <private/android_logger.h> /* private pmsg functions */
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070053#include <selinux/label.h>
54#include <selinux/selinux.h>
Yabin Cui53e7a062016-02-17 12:21:52 -080055
Tao Bao75238632015-05-27 14:46:17 -070056#include "adb_install.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080057#include "bootloader.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080058#include "common.h"
Tao Bao75238632015-05-27 14:46:17 -070059#include "device.h"
60#include "fuse_sdcard_provider.h"
61#include "fuse_sideload.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080062#include "install.h"
63#include "minui/minui.h"
64#include "minzip/DirUtil.h"
65#include "roots.h"
Doug Zongker28ce47c2011-10-28 10:33:05 -070066#include "ui.h"
Doug Zongker211aebc2011-10-28 15:13:10 -070067#include "screen_ui.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080068
Stephen Smalley779701d2012-02-09 14:13:23 -050069struct selabel_handle *sehandle;
70
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080071static const struct option OPTIONS[] = {
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080072 { "update_package", required_argument, NULL, 'u' },
Tianjie Xu3c62b672016-02-05 18:25:58 -080073 { "retry_count", required_argument, NULL, 'n' },
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080074 { "wipe_data", no_argument, NULL, 'w' },
75 { "wipe_cache", no_argument, NULL, 'c' },
Doug Zongker4bc98062010-09-03 11:00:13 -070076 { "show_text", no_argument, NULL, 't' },
Tao Baoc679f932015-03-30 09:43:49 -070077 { "sideload", no_argument, NULL, 's' },
78 { "sideload_auto_reboot", no_argument, NULL, 'a' },
Doug Zongkere5d5ac72012-04-12 11:01:22 -070079 { "just_exit", no_argument, NULL, 'x' },
Doug Zongker02ec6b82012-08-22 17:26:40 -070080 { "locale", required_argument, NULL, 'l' },
Doug Zongkerc87bab12013-11-25 13:53:25 -080081 { "stages", required_argument, NULL, 'g' },
Doug Zongkerb1d12632014-03-18 10:32:12 -070082 { "shutdown_after", no_argument, NULL, 'p' },
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -070083 { "reason", required_argument, NULL, 'r' },
Tao Bao862a4c12016-06-02 11:16:50 -070084 { "brick", no_argument, NULL, 0 },
Doug Zongker988500b2009-10-06 14:41:38 -070085 { NULL, 0, NULL, 0 },
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080086};
87
Doug Zongker6d0d7ac2013-07-09 13:34:55 -070088static const char *CACHE_LOG_DIR = "/cache/recovery";
Doug Zongkerd4208f92010-09-20 12:16:13 -070089static const char *COMMAND_FILE = "/cache/recovery/command";
Doug Zongkerd4208f92010-09-20 12:16:13 -070090static const char *LOG_FILE = "/cache/recovery/log";
Doug Zongkerd0181b82011-10-19 10:51:12 -070091static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
Doug Zongker8b240cc2012-08-29 15:19:29 -070092static const char *LOCALE_FILE = "/cache/recovery/last_locale";
Michael Ward9d2629c2011-06-23 22:14:24 -070093static const char *CACHE_ROOT = "/cache";
Doug Zongkerd4208f92010-09-20 12:16:13 -070094static const char *SDCARD_ROOT = "/sdcard";
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080095static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";
Doug Zongkerd0181b82011-10-19 10:51:12 -070096static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install";
Tao Baof0124322015-04-11 02:04:11 +000097static const char *LAST_KMSG_FILE = "/cache/recovery/last_kmsg";
Tao Baobef39712015-05-04 18:50:27 -070098static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
99static const int KEEP_LOG_COUNT = 10;
Tianjie Xu3c62b672016-02-05 18:25:58 -0800100static const int EIO_RETRY_COUNT = 2;
Yabin Cui53e7a062016-02-17 12:21:52 -0800101static const int BATTERY_READ_TIMEOUT_IN_SEC = 10;
102// GmsCore enters recovery mode to install package when having enough battery
103// percentage. Normally, the threshold is 40% without charger and 20% with charger.
104// So we should check battery with a slightly lower limitation.
105static const int BATTERY_OK_PERCENTAGE = 20;
106static const int BATTERY_WITH_CHARGER_OK_PERCENTAGE = 15;
Tao Bao862a4c12016-06-02 11:16:50 -0700107constexpr const char* RECOVERY_BRICK = "/etc/recovery.brick";
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700108
Doug Zongker211aebc2011-10-28 15:13:10 -0700109RecoveryUI* ui = NULL;
Doug Zongker02ec6b82012-08-22 17:26:40 -0700110char* locale = NULL;
Doug Zongkerc87bab12013-11-25 13:53:25 -0800111char* stage = NULL;
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -0700112char* reason = NULL;
Tao Bao682c34b2015-04-07 17:16:35 -0700113bool modified_flash = false;
Tao Bao26112e52016-02-25 12:29:40 -0800114static bool has_cache = false;
Doug Zongker211aebc2011-10-28 15:13:10 -0700115
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800116/*
117 * The recovery tool communicates with the main system through /cache files.
118 * /cache/recovery/command - INPUT - command line for tool, one arg per line
119 * /cache/recovery/log - OUTPUT - combined log file from recovery run(s)
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800120 *
121 * The arguments which may be supplied in the recovery.command file:
Doug Zongkerd4208f92010-09-20 12:16:13 -0700122 * --update_package=path - verify install an OTA package file
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800123 * --wipe_data - erase user data (and cache), then reboot
124 * --wipe_cache - wipe cache (but not user data), then reboot
Oscar Montemayor05231562009-11-30 08:40:57 -0800125 * --set_encrypted_filesystem=on|off - enables / diasables encrypted fs
Doug Zongkere5d5ac72012-04-12 11:01:22 -0700126 * --just_exit - do nothing; exit and reboot
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800127 *
128 * After completing, we remove /cache/recovery/command and reboot.
129 * Arguments may also be supplied in the bootloader control block (BCB).
130 * These important scenarios must be safely restartable at any point:
131 *
132 * FACTORY RESET
133 * 1. user selects "factory reset"
134 * 2. main system writes "--wipe_data" to /cache/recovery/command
135 * 3. main system reboots into recovery
136 * 4. get_args() writes BCB with "boot-recovery" and "--wipe_data"
137 * -- after this, rebooting will restart the erase --
Doug Zongkerd4208f92010-09-20 12:16:13 -0700138 * 5. erase_volume() reformats /data
139 * 6. erase_volume() reformats /cache
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800140 * 7. finish_recovery() erases BCB
141 * -- after this, rebooting will restart the main system --
142 * 8. main() calls reboot() to boot main system
143 *
144 * OTA INSTALL
145 * 1. main system downloads OTA package to /cache/some-filename.zip
Doug Zongker9b125b02010-09-22 12:01:37 -0700146 * 2. main system writes "--update_package=/cache/some-filename.zip"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800147 * 3. main system reboots into recovery
148 * 4. get_args() writes BCB with "boot-recovery" and "--update_package=..."
149 * -- after this, rebooting will attempt to reinstall the update --
150 * 5. install_package() attempts to install the update
151 * NOTE: the package install must itself be restartable from any point
152 * 6. finish_recovery() erases BCB
153 * -- after this, rebooting will (try to) restart the main system --
154 * 7. ** if install failed **
155 * 7a. prompt_and_wait() shows an error icon and waits for the user
156 * 7b; the user reboots (pulling the battery, etc) into the main system
157 * 8. main() calls maybe_install_firmware_update()
158 * ** if the update contained radio/hboot firmware **:
159 * 8a. m_i_f_u() writes BCB with "boot-recovery" and "--wipe_cache"
160 * -- after this, rebooting will reformat cache & restart main system --
161 * 8b. m_i_f_u() writes firmware image into raw cache partition
162 * 8c. m_i_f_u() writes BCB with "update-radio/hboot" and "--wipe_cache"
163 * -- after this, rebooting will attempt to reinstall firmware --
164 * 8d. bootloader tries to flash firmware
165 * 8e. bootloader writes BCB with "boot-recovery" (keeping "--wipe_cache")
166 * -- after this, rebooting will reformat cache & restart main system --
Doug Zongkerd4208f92010-09-20 12:16:13 -0700167 * 8f. erase_volume() reformats /cache
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800168 * 8g. finish_recovery() erases BCB
169 * -- after this, rebooting will (try to) restart the main system --
170 * 9. main() calls reboot() to boot main system
171 */
172
173static const int MAX_ARG_LENGTH = 4096;
174static const int MAX_ARGS = 100;
175
Doug Zongkerd4208f92010-09-20 12:16:13 -0700176// open a given path, mounting partitions as necessary
Tao Bao04ca4262015-09-10 15:32:24 -0700177FILE* fopen_path(const char *path, const char *mode) {
Doug Zongkerd4208f92010-09-20 12:16:13 -0700178 if (ensure_path_mounted(path) != 0) {
179 LOGE("Can't mount %s\n", path);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800180 return NULL;
181 }
182
183 // When writing, try to create the containing directory, if necessary.
184 // Use generous permissions, the system (init.rc) will reset them.
Stephen Smalley779701d2012-02-09 14:13:23 -0500185 if (strchr("wa", mode[0])) dirCreateHierarchy(path, 0777, NULL, 1, sehandle);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800186
187 FILE *fp = fopen(path, mode);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800188 return fp;
189}
190
Tao Bao04ca4262015-09-10 15:32:24 -0700191// close a file, log an error if the error indicator is set
192static void check_and_fclose(FILE *fp, const char *name) {
193 fflush(fp);
194 if (ferror(fp)) LOGE("Error in %s\n(%s)\n", name, strerror(errno));
195 fclose(fp);
196}
197
Elliott Hughesf14af802015-02-10 14:46:14 -0800198bool is_ro_debuggable() {
199 char value[PROPERTY_VALUE_MAX+1];
200 return (property_get("ro.debuggable", value, NULL) == 1 && value[0] == '1');
201}
202
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700203static void redirect_stdio(const char* filename) {
Tao Bao04ca4262015-09-10 15:32:24 -0700204 int pipefd[2];
205 if (pipe(pipefd) == -1) {
206 LOGE("pipe failed: %s\n", strerror(errno));
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700207
Tao Bao04ca4262015-09-10 15:32:24 -0700208 // Fall back to traditional logging mode without timestamps.
209 // If these fail, there's not really anywhere to complain...
210 freopen(filename, "a", stdout); setbuf(stdout, NULL);
211 freopen(filename, "a", stderr); setbuf(stderr, NULL);
212
213 return;
214 }
215
216 pid_t pid = fork();
217 if (pid == -1) {
218 LOGE("fork failed: %s\n", strerror(errno));
219
220 // Fall back to traditional logging mode without timestamps.
221 // If these fail, there's not really anywhere to complain...
222 freopen(filename, "a", stdout); setbuf(stdout, NULL);
223 freopen(filename, "a", stderr); setbuf(stderr, NULL);
224
225 return;
226 }
227
228 if (pid == 0) {
229 /// Close the unused write end.
230 close(pipefd[1]);
231
232 auto start = std::chrono::steady_clock::now();
233
234 // Child logger to actually write to the log file.
235 FILE* log_fp = fopen(filename, "a");
236 if (log_fp == nullptr) {
237 LOGE("fopen \"%s\" failed: %s\n", filename, strerror(errno));
238 close(pipefd[0]);
239 _exit(1);
240 }
241
242 FILE* pipe_fp = fdopen(pipefd[0], "r");
243 if (pipe_fp == nullptr) {
244 LOGE("fdopen failed: %s\n", strerror(errno));
245 check_and_fclose(log_fp, filename);
246 close(pipefd[0]);
247 _exit(1);
248 }
249
250 char* line = nullptr;
251 size_t len = 0;
252 while (getline(&line, &len, pipe_fp) != -1) {
253 auto now = std::chrono::steady_clock::now();
254 double duration = std::chrono::duration_cast<std::chrono::duration<double>>(
255 now - start).count();
256 if (line[0] == '\n') {
257 fprintf(log_fp, "[%12.6lf]\n", duration);
258 } else {
259 fprintf(log_fp, "[%12.6lf] %s", duration, line);
260 }
261 fflush(log_fp);
262 }
263
264 LOGE("getline failed: %s\n", strerror(errno));
265
266 free(line);
267 check_and_fclose(log_fp, filename);
268 close(pipefd[0]);
269 _exit(1);
270 } else {
271 // Redirect stdout/stderr to the logger process.
272 // Close the unused read end.
273 close(pipefd[0]);
274
275 setbuf(stdout, nullptr);
276 setbuf(stderr, nullptr);
277
278 if (dup2(pipefd[1], STDOUT_FILENO) == -1) {
279 LOGE("dup2 stdout failed: %s\n", strerror(errno));
280 }
281 if (dup2(pipefd[1], STDERR_FILENO) == -1) {
282 LOGE("dup2 stderr failed: %s\n", strerror(errno));
283 }
284
285 close(pipefd[1]);
286 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800287}
288
289// command line args come from, in decreasing precedence:
290// - the actual command line
291// - the bootloader control block (one per line, after "recovery")
292// - the contents of COMMAND_FILE (one per line)
293static void
294get_args(int *argc, char ***argv) {
295 struct bootloader_message boot;
296 memset(&boot, 0, sizeof(boot));
297 get_bootloader_message(&boot); // this may fail, leaving a zeroed structure
Doug Zongkerc87bab12013-11-25 13:53:25 -0800298 stage = strndup(boot.stage, sizeof(boot.stage));
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800299
300 if (boot.command[0] != 0 && boot.command[0] != 255) {
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700301 LOGI("Boot command: %.*s\n", (int)sizeof(boot.command), boot.command);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800302 }
303
304 if (boot.status[0] != 0 && boot.status[0] != 255) {
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700305 LOGI("Boot status: %.*s\n", (int)sizeof(boot.status), boot.status);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800306 }
307
308 // --- if arguments weren't supplied, look in the bootloader control block
309 if (*argc <= 1) {
310 boot.recovery[sizeof(boot.recovery) - 1] = '\0'; // Ensure termination
311 const char *arg = strtok(boot.recovery, "\n");
312 if (arg != NULL && !strcmp(arg, "recovery")) {
313 *argv = (char **) malloc(sizeof(char *) * MAX_ARGS);
314 (*argv)[0] = strdup(arg);
315 for (*argc = 1; *argc < MAX_ARGS; ++*argc) {
316 if ((arg = strtok(NULL, "\n")) == NULL) break;
317 (*argv)[*argc] = strdup(arg);
318 }
319 LOGI("Got arguments from boot message\n");
320 } else if (boot.recovery[0] != 0 && boot.recovery[0] != 255) {
321 LOGE("Bad boot message\n\"%.20s\"\n", boot.recovery);
322 }
323 }
324
Tao Bao26112e52016-02-25 12:29:40 -0800325 // --- if that doesn't work, try the command file (if we have /cache).
326 if (*argc <= 1 && has_cache) {
Doug Zongkerd4208f92010-09-20 12:16:13 -0700327 FILE *fp = fopen_path(COMMAND_FILE, "r");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800328 if (fp != NULL) {
Jin Feng93ffa752013-06-04 17:46:24 +0800329 char *token;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800330 char *argv0 = (*argv)[0];
331 *argv = (char **) malloc(sizeof(char *) * MAX_ARGS);
332 (*argv)[0] = argv0; // use the same program name
333
334 char buf[MAX_ARG_LENGTH];
335 for (*argc = 1; *argc < MAX_ARGS; ++*argc) {
336 if (!fgets(buf, sizeof(buf), fp)) break;
Jin Feng93ffa752013-06-04 17:46:24 +0800337 token = strtok(buf, "\r\n");
338 if (token != NULL) {
339 (*argv)[*argc] = strdup(token); // Strip newline.
340 } else {
341 --*argc;
342 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800343 }
344
345 check_and_fclose(fp, COMMAND_FILE);
346 LOGI("Got arguments from %s\n", COMMAND_FILE);
347 }
348 }
349
350 // --> write the arguments we have back into the bootloader control block
351 // always boot into recovery after this (until finish_recovery() is called)
352 strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
353 strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
354 int i;
355 for (i = 1; i < *argc; ++i) {
356 strlcat(boot.recovery, (*argv)[i], sizeof(boot.recovery));
357 strlcat(boot.recovery, "\n", sizeof(boot.recovery));
358 }
359 set_bootloader_message(&boot);
360}
361
Doug Zongker34c98df2009-08-18 12:05:45 -0700362static void
Oscar Montemayor05231562009-11-30 08:40:57 -0800363set_sdcard_update_bootloader_message() {
Doug Zongker34c98df2009-08-18 12:05:45 -0700364 struct bootloader_message boot;
365 memset(&boot, 0, sizeof(boot));
366 strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
367 strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
368 set_bootloader_message(&boot);
369}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800370
Tao Baobef39712015-05-04 18:50:27 -0700371// Read from kernel log into buffer and write out to file.
372static void save_kernel_log(const char* destination) {
373 int klog_buf_len = klogctl(KLOG_SIZE_BUFFER, 0, 0);
Patrick Tjincd055ee2014-12-09 11:26:40 -0800374 if (klog_buf_len <= 0) {
Tao Baobef39712015-05-04 18:50:27 -0700375 LOGE("Error getting klog size: %s\n", strerror(errno));
Patrick Tjincd055ee2014-12-09 11:26:40 -0800376 return;
377 }
378
Tao Baobef39712015-05-04 18:50:27 -0700379 std::string buffer(klog_buf_len, 0);
380 int n = klogctl(KLOG_READ_ALL, &buffer[0], klog_buf_len);
381 if (n == -1) {
382 LOGE("Error in reading klog: %s\n", strerror(errno));
Patrick Tjincd055ee2014-12-09 11:26:40 -0800383 return;
384 }
Tao Baobef39712015-05-04 18:50:27 -0700385 buffer.resize(n);
386 android::base::WriteStringToFile(buffer, destination);
Patrick Tjincd055ee2014-12-09 11:26:40 -0800387}
388
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800389// write content to the current pmsg session.
390static ssize_t __pmsg_write(const char *filename, const char *buf, size_t len) {
391 return __android_log_pmsg_file_write(LOG_ID_SYSTEM, ANDROID_LOG_INFO,
392 filename, buf, len);
393}
394
395static void copy_log_file_to_pmsg(const char* source, const char* destination) {
396 std::string content;
397 android::base::ReadFileToString(source, &content);
398 __pmsg_write(destination, content.c_str(), content.length());
399}
400
Tao Baof0124322015-04-11 02:04:11 +0000401// How much of the temp log we have copied to the copy in cache.
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700402static off_t tmplog_offset = 0;
Tao Baof0124322015-04-11 02:04:11 +0000403
Tao Baobef39712015-05-04 18:50:27 -0700404static void copy_log_file(const char* source, const char* destination, bool append) {
405 FILE* dest_fp = fopen_path(destination, append ? "a" : "w");
406 if (dest_fp == nullptr) {
Doug Zongker2c3539e2010-09-29 13:21:30 -0700407 LOGE("Can't open %s\n", destination);
408 } else {
Tao Baobef39712015-05-04 18:50:27 -0700409 FILE* source_fp = fopen(source, "r");
410 if (source_fp != nullptr) {
Tao Baof0124322015-04-11 02:04:11 +0000411 if (append) {
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700412 fseeko(source_fp, tmplog_offset, SEEK_SET); // Since last write
Doug Zongker2c3539e2010-09-29 13:21:30 -0700413 }
414 char buf[4096];
Tao Baobef39712015-05-04 18:50:27 -0700415 size_t bytes;
416 while ((bytes = fread(buf, 1, sizeof(buf), source_fp)) != 0) {
417 fwrite(buf, 1, bytes, dest_fp);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700418 }
Tao Baobef39712015-05-04 18:50:27 -0700419 if (append) {
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700420 tmplog_offset = ftello(source_fp);
Tao Baobef39712015-05-04 18:50:27 -0700421 }
422 check_and_fclose(source_fp, source);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700423 }
Tao Baobef39712015-05-04 18:50:27 -0700424 check_and_fclose(dest_fp, destination);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700425 }
426}
427
Tao Baobef39712015-05-04 18:50:27 -0700428// Rename last_log -> last_log.1 -> last_log.2 -> ... -> last_log.$max.
429// Similarly rename last_kmsg -> last_kmsg.1 -> ... -> last_kmsg.$max.
430// Overwrite any existing last_log.$max and last_kmsg.$max.
431static void rotate_logs(int max) {
Tao Bao682c34b2015-04-07 17:16:35 -0700432 // Logs should only be rotated once.
433 static bool rotated = false;
434 if (rotated) {
435 return;
436 }
437 rotated = true;
438 ensure_path_mounted(LAST_LOG_FILE);
Tao Baobef39712015-05-04 18:50:27 -0700439 ensure_path_mounted(LAST_KMSG_FILE);
Tao Bao682c34b2015-04-07 17:16:35 -0700440
Tao Bao682c34b2015-04-07 17:16:35 -0700441 for (int i = max-1; i >= 0; --i) {
Tao Bao80e46e02015-06-03 10:49:29 -0700442 std::string old_log = android::base::StringPrintf("%s", LAST_LOG_FILE);
443 if (i > 0) {
444 old_log += "." + std::to_string(i);
445 }
Tao Baobef39712015-05-04 18:50:27 -0700446 std::string new_log = android::base::StringPrintf("%s.%d", LAST_LOG_FILE, i+1);
447 // Ignore errors if old_log doesn't exist.
448 rename(old_log.c_str(), new_log.c_str());
449
Tao Bao80e46e02015-06-03 10:49:29 -0700450 std::string old_kmsg = android::base::StringPrintf("%s", LAST_KMSG_FILE);
451 if (i > 0) {
452 old_kmsg += "." + std::to_string(i);
453 }
Tao Baobef39712015-05-04 18:50:27 -0700454 std::string new_kmsg = android::base::StringPrintf("%s.%d", LAST_KMSG_FILE, i+1);
455 rename(old_kmsg.c_str(), new_kmsg.c_str());
Doug Zongkerda1ebae2013-05-16 11:23:48 -0700456 }
457}
Doug Zongker2c3539e2010-09-29 13:21:30 -0700458
Tao Bao682c34b2015-04-07 17:16:35 -0700459static void copy_logs() {
460 // We only rotate and record the log of the current session if there are
461 // actual attempts to modify the flash, such as wipes, installs from BCB
462 // or menu selections. This is to avoid unnecessary rotation (and
463 // possible deletion) of log files, if it does not do anything loggable.
464 if (!modified_flash) {
465 return;
466 }
467
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800468 // Always write to pmsg, this allows the OTA logs to be caught in logcat -L
469 copy_log_file_to_pmsg(TEMPORARY_LOG_FILE, LAST_LOG_FILE);
470 copy_log_file_to_pmsg(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE);
471
472 // We can do nothing for now if there's no /cache partition.
473 if (!has_cache) {
474 return;
475 }
476
Tao Baobef39712015-05-04 18:50:27 -0700477 rotate_logs(KEEP_LOG_COUNT);
Tao Bao682c34b2015-04-07 17:16:35 -0700478
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700479 // Copy logs to cache so the system can find out what happened.
Tao Baof0124322015-04-11 02:04:11 +0000480 copy_log_file(TEMPORARY_LOG_FILE, LOG_FILE, true);
481 copy_log_file(TEMPORARY_LOG_FILE, LAST_LOG_FILE, false);
482 copy_log_file(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE, false);
483 save_kernel_log(LAST_KMSG_FILE);
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700484 chmod(LOG_FILE, 0600);
485 chown(LOG_FILE, 1000, 1000); // system user
Tao Baof0124322015-04-11 02:04:11 +0000486 chmod(LAST_KMSG_FILE, 0600);
487 chown(LAST_KMSG_FILE, 1000, 1000); // system user
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700488 chmod(LAST_LOG_FILE, 0640);
489 chmod(LAST_INSTALL_FILE, 0644);
490 sync();
491}
492
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800493// clear the recovery command and prepare to boot a (hopefully working) system,
Tianjie Xuc14d95d2016-03-24 11:50:34 -0700494// copy our log file to cache as well (for the system to read). This function is
495// idempotent: call it as many times as you like.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800496static void
Tianjie Xuc14d95d2016-03-24 11:50:34 -0700497finish_recovery() {
Doug Zongker4f33e552012-08-23 13:16:12 -0700498 // Save the locale to cache, so if recovery is next started up
499 // without a --locale argument (eg, directly from the bootloader)
500 // it will use the last-known locale.
Mark Salyzyna4f701a2016-03-09 14:58:16 -0800501 if (locale != NULL) {
502 size_t len = strlen(locale);
503 __pmsg_write(LOCALE_FILE, locale, len);
504 if (has_cache) {
505 LOGI("Saving locale \"%s\"\n", locale);
506 FILE* fp = fopen_path(LOCALE_FILE, "w");
507 fwrite(locale, 1, len, fp);
508 fflush(fp);
509 fsync(fileno(fp));
510 check_and_fclose(fp, LOCALE_FILE);
511 }
Doug Zongker4f33e552012-08-23 13:16:12 -0700512 }
513
Doug Zongkerf24fd7e2013-07-02 11:43:25 -0700514 copy_logs();
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800515
Doug Zongkere5d5ac72012-04-12 11:01:22 -0700516 // Reset to normal system boot so recovery won't cycle indefinitely.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800517 struct bootloader_message boot;
518 memset(&boot, 0, sizeof(boot));
519 set_bootloader_message(&boot);
520
521 // Remove the command file, so recovery won't repeat indefinitely.
Tao Bao26112e52016-02-25 12:29:40 -0800522 if (has_cache) {
523 if (ensure_path_mounted(COMMAND_FILE) != 0 || (unlink(COMMAND_FILE) && errno != ENOENT)) {
524 LOGW("Can't unlink %s\n", COMMAND_FILE);
525 }
526 ensure_path_unmounted(CACHE_ROOT);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800527 }
528
529 sync(); // For good measure.
530}
531
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700532typedef struct _saved_log_file {
533 char* name;
534 struct stat st;
535 unsigned char* data;
536 struct _saved_log_file* next;
537} saved_log_file;
538
Elliott Hughes945548e2015-06-05 17:59:56 -0700539static bool erase_volume(const char* volume) {
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700540 bool is_cache = (strcmp(volume, CACHE_ROOT) == 0);
541
Doug Zongker02ec6b82012-08-22 17:26:40 -0700542 ui->SetBackground(RecoveryUI::ERASING);
Doug Zongker211aebc2011-10-28 15:13:10 -0700543 ui->SetProgressType(RecoveryUI::INDETERMINATE);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700544
545 saved_log_file* head = NULL;
546
547 if (is_cache) {
Tao Baobef39712015-05-04 18:50:27 -0700548 // If we're reformatting /cache, we load any past logs
549 // (i.e. "/cache/recovery/last_*") and the current log
550 // ("/cache/recovery/log") into memory, so we can restore them after
551 // the reformat.
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700552
553 ensure_path_mounted(volume);
554
555 DIR* d;
556 struct dirent* de;
557 d = opendir(CACHE_LOG_DIR);
558 if (d) {
559 char path[PATH_MAX];
560 strcpy(path, CACHE_LOG_DIR);
561 strcat(path, "/");
562 int path_len = strlen(path);
563 while ((de = readdir(d)) != NULL) {
Tao Baobef39712015-05-04 18:50:27 -0700564 if (strncmp(de->d_name, "last_", 5) == 0 || strcmp(de->d_name, "log") == 0) {
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700565 saved_log_file* p = (saved_log_file*) malloc(sizeof(saved_log_file));
566 strcpy(path+path_len, de->d_name);
567 p->name = strdup(path);
568 if (stat(path, &(p->st)) == 0) {
569 // truncate files to 512kb
570 if (p->st.st_size > (1 << 19)) {
571 p->st.st_size = 1 << 19;
572 }
573 p->data = (unsigned char*) malloc(p->st.st_size);
574 FILE* f = fopen(path, "rb");
575 fread(p->data, 1, p->st.st_size, f);
576 fclose(f);
577 p->next = head;
578 head = p;
579 } else {
580 free(p);
581 }
582 }
583 }
584 closedir(d);
585 } else {
586 if (errno != ENOENT) {
587 printf("opendir failed: %s\n", strerror(errno));
588 }
589 }
590 }
591
Doug Zongker211aebc2011-10-28 15:13:10 -0700592 ui->Print("Formatting %s...\n", volume);
Doug Zongker2c3539e2010-09-29 13:21:30 -0700593
Doug Zongkerd0181b82011-10-19 10:51:12 -0700594 ensure_path_unmounted(volume);
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700595 int result = format_volume(volume);
Doug Zongkerd0181b82011-10-19 10:51:12 -0700596
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700597 if (is_cache) {
598 while (head) {
599 FILE* f = fopen_path(head->name, "wb");
600 if (f) {
601 fwrite(head->data, 1, head->st.st_size, f);
602 fclose(f);
603 chmod(head->name, head->st.st_mode);
604 chown(head->name, head->st.st_uid, head->st.st_gid);
605 }
606 free(head->name);
607 free(head->data);
608 saved_log_file* temp = head->next;
609 free(head);
610 head = temp;
611 }
612
Tao Baof0124322015-04-11 02:04:11 +0000613 // Any part of the log we'd copied to cache is now gone.
614 // Reset the pointer so we copy from the beginning of the temp
615 // log.
616 tmplog_offset = 0;
Doug Zongker6d0d7ac2013-07-09 13:34:55 -0700617 copy_logs();
Doug Zongker2c3539e2010-09-29 13:21:30 -0700618 }
619
Elliott Hughes945548e2015-06-05 17:59:56 -0700620 return (result == 0);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800621}
622
Doug Zongkerf93d8162009-09-22 15:16:02 -0700623static int
Doug Zongker28ce47c2011-10-28 10:33:05 -0700624get_menu_selection(const char* const * headers, const char* const * items,
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700625 int menu_only, int initial_selection, Device* device) {
Doug Zongkerf93d8162009-09-22 15:16:02 -0700626 // throw away keys pressed previously, so user doesn't
627 // accidentally trigger menu items.
Doug Zongker211aebc2011-10-28 15:13:10 -0700628 ui->FlushKeys();
Doug Zongkerf93d8162009-09-22 15:16:02 -0700629
Doug Zongker211aebc2011-10-28 15:13:10 -0700630 ui->StartMenu(headers, items, initial_selection);
Doug Zongker8674a722010-09-15 11:08:23 -0700631 int selected = initial_selection;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800632 int chosen_item = -1;
633
Doug Zongkerf93d8162009-09-22 15:16:02 -0700634 while (chosen_item < 0) {
Doug Zongker211aebc2011-10-28 15:13:10 -0700635 int key = ui->WaitKey();
636 int visible = ui->IsTextVisible();
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800637
Doug Zongker5cae4452011-01-25 13:15:30 -0800638 if (key == -1) { // ui_wait_key() timed out
Doug Zongker211aebc2011-10-28 15:13:10 -0700639 if (ui->WasTextEverVisible()) {
Doug Zongker5cae4452011-01-25 13:15:30 -0800640 continue;
641 } else {
642 LOGI("timed out waiting for key input; rebooting.\n");
Doug Zongker211aebc2011-10-28 15:13:10 -0700643 ui->EndMenu();
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700644 return 0; // XXX fixme
Doug Zongker5cae4452011-01-25 13:15:30 -0800645 }
646 }
647
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700648 int action = device->HandleMenuKey(key, visible);
Doug Zongkerddd6a282009-06-09 12:22:33 -0700649
650 if (action < 0) {
651 switch (action) {
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700652 case Device::kHighlightUp:
Elliott Hughes642aaa72015-04-10 12:47:46 -0700653 selected = ui->SelectMenu(--selected);
Doug Zongkerddd6a282009-06-09 12:22:33 -0700654 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700655 case Device::kHighlightDown:
Elliott Hughes642aaa72015-04-10 12:47:46 -0700656 selected = ui->SelectMenu(++selected);
Doug Zongkerddd6a282009-06-09 12:22:33 -0700657 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700658 case Device::kInvokeItem:
Doug Zongkerddd6a282009-06-09 12:22:33 -0700659 chosen_item = selected;
660 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700661 case Device::kNoAction:
Doug Zongkerddd6a282009-06-09 12:22:33 -0700662 break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800663 }
Doug Zongkerf93d8162009-09-22 15:16:02 -0700664 } else if (!menu_only) {
Doug Zongkerddd6a282009-06-09 12:22:33 -0700665 chosen_item = action;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800666 }
Doug Zongkerf93d8162009-09-22 15:16:02 -0700667 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800668
Doug Zongker211aebc2011-10-28 15:13:10 -0700669 ui->EndMenu();
Doug Zongkerf93d8162009-09-22 15:16:02 -0700670 return chosen_item;
671}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800672
Doug Zongker8674a722010-09-15 11:08:23 -0700673static int compare_string(const void* a, const void* b) {
674 return strcmp(*(const char**)a, *(const char**)b);
675}
676
Doug Zongker93950222014-07-08 14:10:23 -0700677// Returns a malloc'd path, or NULL.
Elliott Hughes30694c92015-03-25 15:16:51 -0700678static char* browse_directory(const char* path, Device* device) {
Michael Ward9d2629c2011-06-23 22:14:24 -0700679 ensure_path_mounted(path);
Doug Zongkerc18eeb82010-09-21 16:49:26 -0700680
Elliott Hughes30694c92015-03-25 15:16:51 -0700681 DIR* d = opendir(path);
Doug Zongker8674a722010-09-15 11:08:23 -0700682 if (d == NULL) {
683 LOGE("error opening %s: %s\n", path, strerror(errno));
Doug Zongker93950222014-07-08 14:10:23 -0700684 return NULL;
Doug Zongker8674a722010-09-15 11:08:23 -0700685 }
686
Doug Zongker8674a722010-09-15 11:08:23 -0700687 int d_size = 0;
688 int d_alloc = 10;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700689 char** dirs = (char**)malloc(d_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700690 int z_size = 1;
691 int z_alloc = 10;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700692 char** zips = (char**)malloc(z_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700693 zips[0] = strdup("../");
694
Elliott Hughes30694c92015-03-25 15:16:51 -0700695 struct dirent* de;
Doug Zongker8674a722010-09-15 11:08:23 -0700696 while ((de = readdir(d)) != NULL) {
697 int name_len = strlen(de->d_name);
698
699 if (de->d_type == DT_DIR) {
700 // skip "." and ".." entries
701 if (name_len == 1 && de->d_name[0] == '.') continue;
702 if (name_len == 2 && de->d_name[0] == '.' &&
703 de->d_name[1] == '.') continue;
704
705 if (d_size >= d_alloc) {
706 d_alloc *= 2;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700707 dirs = (char**)realloc(dirs, d_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700708 }
Doug Zongker28ce47c2011-10-28 10:33:05 -0700709 dirs[d_size] = (char*)malloc(name_len + 2);
Doug Zongker8674a722010-09-15 11:08:23 -0700710 strcpy(dirs[d_size], de->d_name);
711 dirs[d_size][name_len] = '/';
712 dirs[d_size][name_len+1] = '\0';
713 ++d_size;
714 } else if (de->d_type == DT_REG &&
715 name_len >= 4 &&
716 strncasecmp(de->d_name + (name_len-4), ".zip", 4) == 0) {
717 if (z_size >= z_alloc) {
718 z_alloc *= 2;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700719 zips = (char**)realloc(zips, z_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700720 }
721 zips[z_size++] = strdup(de->d_name);
722 }
723 }
724 closedir(d);
725
726 qsort(dirs, d_size, sizeof(char*), compare_string);
727 qsort(zips, z_size, sizeof(char*), compare_string);
728
729 // append dirs to the zips list
730 if (d_size + z_size + 1 > z_alloc) {
731 z_alloc = d_size + z_size + 1;
Doug Zongker28ce47c2011-10-28 10:33:05 -0700732 zips = (char**)realloc(zips, z_alloc * sizeof(char*));
Doug Zongker8674a722010-09-15 11:08:23 -0700733 }
734 memcpy(zips + z_size, dirs, d_size * sizeof(char*));
735 free(dirs);
736 z_size += d_size;
737 zips[z_size] = NULL;
738
Elliott Hughes8fd86d72015-04-13 14:36:02 -0700739 const char* headers[] = { "Choose a package to install:", path, NULL };
Elliott Hughes30694c92015-03-25 15:16:51 -0700740
Doug Zongker93950222014-07-08 14:10:23 -0700741 char* result;
Doug Zongker8674a722010-09-15 11:08:23 -0700742 int chosen_item = 0;
Doug Zongker93950222014-07-08 14:10:23 -0700743 while (true) {
Doug Zongkerdaefc1d2011-10-31 09:34:15 -0700744 chosen_item = get_menu_selection(headers, zips, 1, chosen_item, device);
Doug Zongker8674a722010-09-15 11:08:23 -0700745
746 char* item = zips[chosen_item];
747 int item_len = strlen(item);
748 if (chosen_item == 0) { // item 0 is always "../"
Michael Ward9d2629c2011-06-23 22:14:24 -0700749 // go up but continue browsing (if the caller is update_directory)
Doug Zongker93950222014-07-08 14:10:23 -0700750 result = NULL;
Doug Zongker8674a722010-09-15 11:08:23 -0700751 break;
752 }
Doug Zongker93950222014-07-08 14:10:23 -0700753
754 char new_path[PATH_MAX];
755 strlcpy(new_path, path, PATH_MAX);
756 strlcat(new_path, "/", PATH_MAX);
757 strlcat(new_path, item, PATH_MAX);
758
759 if (item[item_len-1] == '/') {
760 // recurse down into a subdirectory
761 new_path[strlen(new_path)-1] = '\0'; // truncate the trailing '/'
762 result = browse_directory(new_path, device);
763 if (result) break;
764 } else {
765 // selected a zip file: return the malloc'd path to the caller.
766 result = strdup(new_path);
767 break;
768 }
769 }
Doug Zongker8674a722010-09-15 11:08:23 -0700770
Elliott Hughes30694c92015-03-25 15:16:51 -0700771 for (int i = 0; i < z_size; ++i) free(zips[i]);
Doug Zongker8674a722010-09-15 11:08:23 -0700772 free(zips);
Doug Zongker8674a722010-09-15 11:08:23 -0700773
774 return result;
775}
776
Elliott Hughes30694c92015-03-25 15:16:51 -0700777static bool yes_no(Device* device, const char* question1, const char* question2) {
Elliott Hughes8fd86d72015-04-13 14:36:02 -0700778 const char* headers[] = { question1, question2, NULL };
Elliott Hughes30694c92015-03-25 15:16:51 -0700779 const char* items[] = { " No", " Yes", NULL };
Doug Zongkerddd6a282009-06-09 12:22:33 -0700780
Elliott Hughes30694c92015-03-25 15:16:51 -0700781 int chosen_item = get_menu_selection(headers, items, 1, 0, device);
782 return (chosen_item == 1);
783}
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800784
Tao Baoe39a9bc2015-03-31 12:19:05 -0700785// Return true on success.
786static bool wipe_data(int should_confirm, Device* device) {
787 if (should_confirm && !yes_no(device, "Wipe all user data?", " THIS CAN NOT BE UNDONE!")) {
788 return false;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700789 }
Doug Zongker1066d2c2009-04-01 13:57:40 -0700790
Tao Bao682c34b2015-04-07 17:16:35 -0700791 modified_flash = true;
792
Doug Zongker211aebc2011-10-28 15:13:10 -0700793 ui->Print("\n-- Wiping data...\n");
Elliott Hughes945548e2015-06-05 17:59:56 -0700794 bool success =
795 device->PreWipeData() &&
796 erase_volume("/data") &&
Tao Bao26112e52016-02-25 12:29:40 -0800797 (has_cache ? erase_volume("/cache") : true) &&
Elliott Hughes945548e2015-06-05 17:59:56 -0700798 device->PostWipeData();
799 ui->Print("Data wipe %s.\n", success ? "complete" : "failed");
800 return success;
Doug Zongkerf93d8162009-09-22 15:16:02 -0700801}
802
Tao Baoe39a9bc2015-03-31 12:19:05 -0700803// Return true on success.
804static bool wipe_cache(bool should_confirm, Device* device) {
Tao Bao26112e52016-02-25 12:29:40 -0800805 if (!has_cache) {
806 ui->Print("No /cache partition found.\n");
807 return false;
808 }
809
Elliott Hughes30694c92015-03-25 15:16:51 -0700810 if (should_confirm && !yes_no(device, "Wipe cache?", " THIS CAN NOT BE UNDONE!")) {
Tao Baoe39a9bc2015-03-31 12:19:05 -0700811 return false;
Elliott Hughes30694c92015-03-25 15:16:51 -0700812 }
813
Tao Bao682c34b2015-04-07 17:16:35 -0700814 modified_flash = true;
815
Elliott Hughes30694c92015-03-25 15:16:51 -0700816 ui->Print("\n-- Wiping cache...\n");
Elliott Hughes945548e2015-06-05 17:59:56 -0700817 bool success = erase_volume("/cache");
818 ui->Print("Cache wipe %s.\n", success ? "complete" : "failed");
819 return success;
Elliott Hughes30694c92015-03-25 15:16:51 -0700820}
821
Tao Bao862a4c12016-06-02 11:16:50 -0700822// Secure-wipe a given partition. It uses BLKSECDISCARD, if supported.
823// Otherwise, it goes with BLKDISCARD (if device supports BLKDISCARDZEROES) or
824// BLKZEROOUT.
825static bool secure_wipe_partition(const std::string& partition) {
826 android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(partition.c_str(), O_WRONLY)));
827 if (fd == -1) {
828 LOGE("failed to open \"%s\": %s\n", partition.c_str(), strerror(errno));
829 return false;
830 }
831
832 uint64_t range[2] = {0, 0};
833 if (ioctl(fd, BLKGETSIZE64, &range[1]) == -1 || range[1] == 0) {
834 LOGE("failed to get partition size: %s\n", strerror(errno));
835 return false;
836 }
837 printf("Secure-wiping \"%s\" from %" PRIu64 " to %" PRIu64 ".\n",
838 partition.c_str(), range[0], range[1]);
839
840 printf("Trying BLKSECDISCARD...\t");
841 if (ioctl(fd, BLKSECDISCARD, &range) == -1) {
842 printf("failed: %s\n", strerror(errno));
843
844 // Use BLKDISCARD if it zeroes out blocks, otherwise use BLKZEROOUT.
845 unsigned int zeroes;
846 if (ioctl(fd, BLKDISCARDZEROES, &zeroes) == 0 && zeroes != 0) {
847 printf("Trying BLKDISCARD...\t");
848 if (ioctl(fd, BLKDISCARD, &range) == -1) {
849 printf("failed: %s\n", strerror(errno));
850 return false;
851 }
852 } else {
853 printf("Trying BLKZEROOUT...\t");
854 if (ioctl(fd, BLKZEROOUT, &range) == -1) {
855 printf("failed: %s\n", strerror(errno));
856 return false;
857 }
858 }
859 }
860
861 printf("done\n");
862 return true;
863}
864
865// Brick the current device, with a secure wipe of all the partitions in
866// RECOVERY_BRICK.
867static bool brick_device() {
868 ui->SetBackground(RecoveryUI::ERASING);
869 ui->SetProgressType(RecoveryUI::INDETERMINATE);
870
871 std::string partition_list;
872 if (!android::base::ReadFileToString(RECOVERY_BRICK, &partition_list)) {
873 LOGE("failed to read \"%s\".\n", RECOVERY_BRICK);
874 return false;
875 }
876
877 std::vector<std::string> lines = android::base::Split(partition_list, "\n");
878 for (const std::string& line : lines) {
879 std::string partition = android::base::Trim(line);
880 // Ignore '#' comment or empty lines.
881 if (android::base::StartsWith(partition, "#") || partition.empty()) {
882 continue;
883 }
884
885 // Proceed anyway even if it fails to wipe some partition.
886 secure_wipe_partition(partition);
887 }
888 return true;
889}
890
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700891static void choose_recovery_file(Device* device) {
Tao Bao26112e52016-02-25 12:29:40 -0800892 if (!has_cache) {
893 ui->Print("No /cache partition found.\n");
894 return;
895 }
896
Elliott Hughesc0491632015-05-06 12:40:05 -0700897 // "Back" + KEEP_LOG_COUNT * 2 + terminating nullptr entry
898 char* entries[1 + KEEP_LOG_COUNT * 2 + 1];
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700899 memset(entries, 0, sizeof(entries));
900
Tao Baobef39712015-05-04 18:50:27 -0700901 unsigned int n = 0;
Patrick Tjincd055ee2014-12-09 11:26:40 -0800902
Patrick Tjincd055ee2014-12-09 11:26:40 -0800903 // Add LAST_LOG_FILE + LAST_LOG_FILE.x
Tao Baobef39712015-05-04 18:50:27 -0700904 // Add LAST_KMSG_FILE + LAST_KMSG_FILE.x
905 for (int i = 0; i < KEEP_LOG_COUNT; i++) {
906 char* log_file;
Tao Bao80e46e02015-06-03 10:49:29 -0700907 int ret;
908 ret = (i == 0) ? asprintf(&log_file, "%s", LAST_LOG_FILE) :
909 asprintf(&log_file, "%s.%d", LAST_LOG_FILE, i);
910 if (ret == -1) {
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700911 // memory allocation failure - return early. Should never happen.
912 return;
913 }
Tao Baobef39712015-05-04 18:50:27 -0700914 if ((ensure_path_mounted(log_file) != 0) || (access(log_file, R_OK) == -1)) {
915 free(log_file);
916 } else {
917 entries[n++] = log_file;
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700918 }
Tao Baobef39712015-05-04 18:50:27 -0700919
920 char* kmsg_file;
Tao Bao80e46e02015-06-03 10:49:29 -0700921 ret = (i == 0) ? asprintf(&kmsg_file, "%s", LAST_KMSG_FILE) :
922 asprintf(&kmsg_file, "%s.%d", LAST_KMSG_FILE, i);
923 if (ret == -1) {
Tao Baobef39712015-05-04 18:50:27 -0700924 // memory allocation failure - return early. Should never happen.
925 return;
926 }
927 if ((ensure_path_mounted(kmsg_file) != 0) || (access(kmsg_file, R_OK) == -1)) {
928 free(kmsg_file);
929 } else {
930 entries[n++] = kmsg_file;
931 }
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700932 }
933
Elliott Hughesc0491632015-05-06 12:40:05 -0700934 entries[n++] = strdup("Back");
935
Tao Baobef39712015-05-04 18:50:27 -0700936 const char* headers[] = { "Select file to view", nullptr };
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700937
Elliott Hughes8de52072015-04-08 20:06:50 -0700938 while (true) {
Elliott Hughes30694c92015-03-25 15:16:51 -0700939 int chosen_item = get_menu_selection(headers, entries, 1, 0, device);
Elliott Hughesc0491632015-05-06 12:40:05 -0700940 if (strcmp(entries[chosen_item], "Back") == 0) break;
Elliott Hughes8de52072015-04-08 20:06:50 -0700941
Elliott Hughes8de52072015-04-08 20:06:50 -0700942 ui->ShowFile(entries[chosen_item]);
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700943 }
944
Tao Baobef39712015-05-04 18:50:27 -0700945 for (size_t i = 0; i < (sizeof(entries) / sizeof(*entries)); i++) {
Nick Kralevicha9ad0322014-10-22 18:38:48 -0700946 free(entries[i]);
947 }
948}
949
Tao Baocdcf28f2016-01-13 15:05:20 -0800950// How long (in seconds) we wait for the fuse-provided package file to
951// appear, before timing out.
952#define SDCARD_INSTALL_TIMEOUT 10
953
Tao Bao145d8612015-03-25 15:51:15 -0700954static int apply_from_sdcard(Device* device, bool* wipe_cache) {
Tao Bao682c34b2015-04-07 17:16:35 -0700955 modified_flash = true;
956
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000957 if (ensure_path_mounted(SDCARD_ROOT) != 0) {
958 ui->Print("\n-- Couldn't mount %s.\n", SDCARD_ROOT);
959 return INSTALL_ERROR;
960 }
961
962 char* path = browse_directory(SDCARD_ROOT, device);
963 if (path == NULL) {
Elliott Hughes018ed312015-04-08 16:51:36 -0700964 ui->Print("\n-- No package file selected.\n");
caozhiyuanb4effb92015-06-10 16:46:38 +0800965 ensure_path_unmounted(SDCARD_ROOT);
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000966 return INSTALL_ERROR;
967 }
968
969 ui->Print("\n-- Install %s ...\n", path);
970 set_sdcard_update_bootloader_message();
Christian Poetzsch4ec58a42015-02-19 10:42:39 +0000971
Tao Baocdcf28f2016-01-13 15:05:20 -0800972 // We used to use fuse in a thread as opposed to a process. Since accessing
973 // through fuse involves going from kernel to userspace to kernel, it leads
974 // to deadlock when a page fault occurs. (Bug: 26313124)
975 pid_t child;
976 if ((child = fork()) == 0) {
977 bool status = start_sdcard_fuse(path);
978
979 _exit(status ? EXIT_SUCCESS : EXIT_FAILURE);
980 }
981
982 // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the fuse in child
983 // process is ready.
984 int result = INSTALL_ERROR;
985 int status;
986 bool waited = false;
987 for (int i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) {
988 if (waitpid(child, &status, WNOHANG) == -1) {
989 result = INSTALL_ERROR;
990 waited = true;
991 break;
992 }
993
994 struct stat sb;
995 if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &sb) == -1) {
996 if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) {
997 sleep(1);
998 continue;
999 } else {
1000 LOGE("Timed out waiting for the fuse-provided package.\n");
1001 result = INSTALL_ERROR;
1002 kill(child, SIGKILL);
1003 break;
1004 }
1005 }
1006
1007 result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache,
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001008 TEMPORARY_INSTALL_FILE, false);
Tao Baocdcf28f2016-01-13 15:05:20 -08001009 break;
1010 }
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001011
Tao Baocdcf28f2016-01-13 15:05:20 -08001012 if (!waited) {
1013 // Calling stat() on this magic filename signals the fuse
1014 // filesystem to shut down.
1015 struct stat sb;
1016 stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &sb);
1017
1018 waitpid(child, &status, 0);
1019 }
1020
1021 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
1022 LOGE("Error exit from the fuse process: %d\n", WEXITSTATUS(status));
1023 }
1024
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001025 ensure_path_unmounted(SDCARD_ROOT);
Tao Baocdcf28f2016-01-13 15:05:20 -08001026 return result;
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001027}
1028
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001029// Return REBOOT, SHUTDOWN, or REBOOT_BOOTLOADER. Returning NO_ACTION
1030// means to take the default, which is to reboot or shutdown depending
1031// on if the --shutdown_after flag was passed to recovery.
1032static Device::BuiltinAction
Doug Zongker6c8553d2012-09-24 10:40:47 -07001033prompt_and_wait(Device* device, int status) {
Doug Zongkerf93d8162009-09-22 15:16:02 -07001034 for (;;) {
Tianjie Xuc14d95d2016-03-24 11:50:34 -07001035 finish_recovery();
Doug Zongker6c8553d2012-09-24 10:40:47 -07001036 switch (status) {
1037 case INSTALL_SUCCESS:
1038 case INSTALL_NONE:
1039 ui->SetBackground(RecoveryUI::NO_COMMAND);
1040 break;
1041
1042 case INSTALL_ERROR:
1043 case INSTALL_CORRUPT:
1044 ui->SetBackground(RecoveryUI::ERROR);
1045 break;
1046 }
Doug Zongker211aebc2011-10-28 15:13:10 -07001047 ui->SetProgressType(RecoveryUI::EMPTY);
Doug Zongkerf93d8162009-09-22 15:16:02 -07001048
Elliott Hughes8fd86d72015-04-13 14:36:02 -07001049 int chosen_item = get_menu_selection(nullptr, device->GetMenuItems(), 0, 0, device);
Doug Zongkerf93d8162009-09-22 15:16:02 -07001050
1051 // device-specific code may take some action here. It may
1052 // return one of the core actions handled in the switch
1053 // statement below.
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001054 Device::BuiltinAction chosen_action = device->InvokeMenuItem(chosen_item);
Doug Zongkerf93d8162009-09-22 15:16:02 -07001055
Elliott Hughes30694c92015-03-25 15:16:51 -07001056 bool should_wipe_cache = false;
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001057 switch (chosen_action) {
1058 case Device::NO_ACTION:
1059 break;
1060
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001061 case Device::REBOOT:
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001062 case Device::SHUTDOWN:
1063 case Device::REBOOT_BOOTLOADER:
1064 return chosen_action;
Doug Zongkerf93d8162009-09-22 15:16:02 -07001065
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001066 case Device::WIPE_DATA:
1067 wipe_data(ui->IsTextVisible(), device);
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001068 if (!ui->IsTextVisible()) return Device::NO_ACTION;
Doug Zongkerf93d8162009-09-22 15:16:02 -07001069 break;
1070
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001071 case Device::WIPE_CACHE:
Elliott Hughes30694c92015-03-25 15:16:51 -07001072 wipe_cache(ui->IsTextVisible(), device);
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001073 if (!ui->IsTextVisible()) return Device::NO_ACTION;
Doug Zongkerf93d8162009-09-22 15:16:02 -07001074 break;
1075
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001076 case Device::APPLY_ADB_SIDELOAD:
Elliott Hughesec283402015-04-10 10:01:53 -07001077 case Device::APPLY_SDCARD:
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001078 {
1079 bool adb = (chosen_action == Device::APPLY_ADB_SIDELOAD);
1080 if (adb) {
Elliott Hughes30694c92015-03-25 15:16:51 -07001081 status = apply_from_adb(ui, &should_wipe_cache, TEMPORARY_INSTALL_FILE);
Doug Zongkerd0181b82011-10-19 10:51:12 -07001082 } else {
Elliott Hughes30694c92015-03-25 15:16:51 -07001083 status = apply_from_sdcard(device, &should_wipe_cache);
Doug Zongkerd0181b82011-10-19 10:51:12 -07001084 }
Doug Zongker945fc682014-07-10 10:50:39 -07001085
Elliott Hughes30694c92015-03-25 15:16:51 -07001086 if (status == INSTALL_SUCCESS && should_wipe_cache) {
Tao Baoe39a9bc2015-03-31 12:19:05 -07001087 if (!wipe_cache(false, device)) {
1088 status = INSTALL_ERROR;
1089 }
Christian Poetzsch4ec58a42015-02-19 10:42:39 +00001090 }
1091
Tao Baoc679f932015-03-30 09:43:49 -07001092 if (status != INSTALL_SUCCESS) {
1093 ui->SetBackground(RecoveryUI::ERROR);
1094 ui->Print("Installation aborted.\n");
1095 copy_logs();
1096 } else if (!ui->IsTextVisible()) {
1097 return Device::NO_ACTION; // reboot if logs aren't visible
1098 } else {
1099 ui->Print("\nInstall from %s complete.\n", adb ? "ADB" : "SD card");
Doug Zongker8674a722010-09-15 11:08:23 -07001100 }
Doug Zongkerf93d8162009-09-22 15:16:02 -07001101 }
1102 break;
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001103
Elliott Hughesec283402015-04-10 10:01:53 -07001104 case Device::VIEW_RECOVERY_LOGS:
1105 choose_recovery_file(device);
Michael Ward9d2629c2011-06-23 22:14:24 -07001106 break;
Doug Zongker9270a202012-01-09 15:16:13 -08001107
Elliott Hughesec283402015-04-10 10:01:53 -07001108 case Device::MOUNT_SYSTEM:
Tao Baoabb8f772015-07-30 14:43:27 -07001109 char system_root_image[PROPERTY_VALUE_MAX];
1110 property_get("ro.build.system_root_image", system_root_image, "");
1111
1112 // For a system image built with the root directory (i.e.
1113 // system_root_image == "true"), we mount it to /system_root, and symlink /system
1114 // to /system_root/system to make adb shell work (the symlink is created through
1115 // the build system).
1116 // Bug: 22855115
1117 if (strcmp(system_root_image, "true") == 0) {
1118 if (ensure_path_mounted_at("/", "/system_root") != -1) {
1119 ui->Print("Mounted /system.\n");
1120 }
1121 } else {
1122 if (ensure_path_mounted("/system") != -1) {
1123 ui->Print("Mounted /system.\n");
1124 }
Elliott Hughesec283402015-04-10 10:01:53 -07001125 }
Tao Baoabb8f772015-07-30 14:43:27 -07001126
Nick Kralevicha9ad0322014-10-22 18:38:48 -07001127 break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001128 }
1129 }
1130}
1131
1132static void
Oscar Montemayor05231562009-11-30 08:40:57 -08001133print_property(const char *key, const char *name, void *cookie) {
Doug Zongker56c51052010-07-01 09:18:44 -07001134 printf("%s=%s\n", key, name);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001135}
1136
Doug Zongker02ec6b82012-08-22 17:26:40 -07001137static void
1138load_locale_from_cache() {
1139 FILE* fp = fopen_path(LOCALE_FILE, "r");
1140 char buffer[80];
1141 if (fp != NULL) {
1142 fgets(buffer, sizeof(buffer), fp);
1143 int j = 0;
Doug Zongker5fa8c232012-09-18 12:37:02 -07001144 unsigned int i;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001145 for (i = 0; i < sizeof(buffer) && buffer[i]; ++i) {
1146 if (!isspace(buffer[i])) {
1147 buffer[j++] = buffer[i];
1148 }
1149 }
1150 buffer[j] = 0;
1151 locale = strdup(buffer);
Devin Kim6016d082012-10-08 09:47:37 -07001152 check_and_fclose(fp, LOCALE_FILE);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001153 }
1154}
1155
Doug Zongker7c3ae452013-05-14 11:03:02 -07001156static RecoveryUI* gCurrentUI = NULL;
1157
1158void
1159ui_print(const char* format, ...) {
1160 char buffer[256];
1161
1162 va_list ap;
1163 va_start(ap, format);
1164 vsnprintf(buffer, sizeof(buffer), format, ap);
1165 va_end(ap);
1166
1167 if (gCurrentUI != NULL) {
1168 gCurrentUI->Print("%s", buffer);
1169 } else {
1170 fputs(buffer, stdout);
1171 }
1172}
1173
Yabin Cui53e7a062016-02-17 12:21:52 -08001174static bool is_battery_ok() {
1175 struct healthd_config healthd_config = {
1176 .batteryStatusPath = android::String8(android::String8::kEmptyString),
1177 .batteryHealthPath = android::String8(android::String8::kEmptyString),
1178 .batteryPresentPath = android::String8(android::String8::kEmptyString),
1179 .batteryCapacityPath = android::String8(android::String8::kEmptyString),
1180 .batteryVoltagePath = android::String8(android::String8::kEmptyString),
1181 .batteryTemperaturePath = android::String8(android::String8::kEmptyString),
1182 .batteryTechnologyPath = android::String8(android::String8::kEmptyString),
1183 .batteryCurrentNowPath = android::String8(android::String8::kEmptyString),
1184 .batteryCurrentAvgPath = android::String8(android::String8::kEmptyString),
1185 .batteryChargeCounterPath = android::String8(android::String8::kEmptyString),
1186 .batteryFullChargePath = android::String8(android::String8::kEmptyString),
1187 .batteryCycleCountPath = android::String8(android::String8::kEmptyString),
1188 .energyCounter = NULL,
1189 .boot_min_cap = 0,
1190 .screen_on = NULL
1191 };
1192 healthd_board_init(&healthd_config);
1193
1194 android::BatteryMonitor monitor;
1195 monitor.init(&healthd_config);
1196
1197 int wait_second = 0;
1198 while (true) {
1199 int charge_status = monitor.getChargeStatus();
1200 // Treat unknown status as charged.
1201 bool charged = (charge_status != android::BATTERY_STATUS_DISCHARGING &&
1202 charge_status != android::BATTERY_STATUS_NOT_CHARGING);
1203 android::BatteryProperty capacity;
1204 android::status_t status = monitor.getProperty(android::BATTERY_PROP_CAPACITY, &capacity);
1205 ui_print("charge_status %d, charged %d, status %d, capacity %lld\n", charge_status,
1206 charged, status, capacity.valueInt64);
1207 // At startup, the battery drivers in devices like N5X/N6P take some time to load
1208 // the battery profile. Before the load finishes, it reports value 50 as a fake
1209 // capacity. BATTERY_READ_TIMEOUT_IN_SEC is set that the battery drivers are expected
1210 // to finish loading the battery profile earlier than 10 seconds after kernel startup.
1211 if (status == 0 && capacity.valueInt64 == 50) {
1212 if (wait_second < BATTERY_READ_TIMEOUT_IN_SEC) {
1213 sleep(1);
1214 wait_second++;
1215 continue;
1216 }
1217 }
1218 // If we can't read battery percentage, it may be a device without battery. In this
1219 // situation, use 100 as a fake battery percentage.
1220 if (status != 0) {
1221 capacity.valueInt64 = 100;
1222 }
1223 return (charged && capacity.valueInt64 >= BATTERY_WITH_CHARGER_OK_PERCENTAGE) ||
1224 (!charged && capacity.valueInt64 >= BATTERY_OK_PERCENTAGE);
1225 }
1226}
1227
Tianjie Xu3c62b672016-02-05 18:25:58 -08001228static void set_retry_bootloader_message(int retry_count, int argc, char** argv) {
1229 struct bootloader_message boot {};
1230 strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
1231 strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
1232
1233 for (int i = 1; i < argc; ++i) {
1234 if (strstr(argv[i], "retry_count") == nullptr) {
1235 strlcat(boot.recovery, argv[i], sizeof(boot.recovery));
1236 strlcat(boot.recovery, "\n", sizeof(boot.recovery));
1237 }
1238 }
1239
1240 // Initialize counter to 1 if it's not in BCB, otherwise increment it by 1.
1241 if (retry_count == 0) {
1242 strlcat(boot.recovery, "--retry_count=1\n", sizeof(boot.recovery));
1243 } else {
1244 char buffer[20];
1245 snprintf(buffer, sizeof(buffer), "--retry_count=%d\n", retry_count+1);
1246 strlcat(boot.recovery, buffer, sizeof(boot.recovery));
1247 }
1248 set_bootloader_message(&boot);
1249}
1250
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001251static ssize_t logbasename(
1252 log_id_t /* logId */,
1253 char /* prio */,
1254 const char *filename,
1255 const char * /* buf */, size_t len,
1256 void *arg) {
1257 if (strstr(LAST_KMSG_FILE, filename) ||
1258 strstr(LAST_LOG_FILE, filename)) {
1259 bool *doRotate = reinterpret_cast<bool *>(arg);
1260 *doRotate = true;
1261 }
1262 return len;
1263}
1264
1265static ssize_t logrotate(
1266 log_id_t logId,
1267 char prio,
1268 const char *filename,
1269 const char *buf, size_t len,
1270 void *arg) {
1271 bool *doRotate = reinterpret_cast<bool *>(arg);
1272 if (!*doRotate) {
1273 return __android_log_pmsg_file_write(logId, prio, filename, buf, len);
1274 }
1275
1276 std::string name(filename);
Chih-Hung Hsieh23abfd32016-07-27 10:19:47 -07001277 size_t dot = name.find_last_of('.');
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001278 std::string sub = name.substr(0, dot);
1279
1280 if (!strstr(LAST_KMSG_FILE, sub.c_str()) &&
1281 !strstr(LAST_LOG_FILE, sub.c_str())) {
1282 return __android_log_pmsg_file_write(logId, prio, filename, buf, len);
1283 }
1284
1285 // filename rotation
1286 if (dot == std::string::npos) {
1287 name += ".1";
1288 } else {
1289 std::string number = name.substr(dot + 1);
1290 if (!isdigit(number.data()[0])) {
1291 name += ".1";
1292 } else {
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -07001293 auto i = std::stoull(number);
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001294 name = sub + "." + std::to_string(i + 1);
1295 }
1296 }
1297
1298 return __android_log_pmsg_file_write(logId, prio, name.c_str(), buf, len);
1299}
1300
Yabin Cui53e7a062016-02-17 12:21:52 -08001301int main(int argc, char **argv) {
Mark Salyzyna4f701a2016-03-09 14:58:16 -08001302 // Take last pmsg contents and rewrite it to the current pmsg session.
1303 static const char filter[] = "recovery/";
1304 // Do we need to rotate?
1305 bool doRotate = false;
1306 __android_log_pmsg_file_read(
1307 LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter,
1308 logbasename, &doRotate);
1309 // Take action to refresh pmsg contents
1310 __android_log_pmsg_file_read(
1311 LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter,
1312 logrotate, &doRotate);
1313
Doug Zongker9270a202012-01-09 15:16:13 -08001314 // If this binary is started with the single argument "--adbd",
1315 // instead of being the normal recovery binary, it turns into kind
1316 // of a stripped-down version of adbd that only supports the
1317 // 'sideload' command. Note this must be a real argument, not
1318 // anything in the command file or bootloader control block; the
1319 // only way recovery should be run with this argument is when it
1320 // starts a copy of itself from the apply_from_adb() function.
1321 if (argc == 2 && strcmp(argv[1], "--adbd") == 0) {
Elliott Hughes9f4fdb32015-11-20 13:03:24 -08001322 adb_server_main(0, DEFAULT_ADB_PORT, -1);
Doug Zongker9270a202012-01-09 15:16:13 -08001323 return 0;
1324 }
1325
Tao Bao04ca4262015-09-10 15:32:24 -07001326 time_t start = time(NULL);
1327
1328 // redirect_stdio should be called only in non-sideload mode. Otherwise
1329 // we may have two logger instances with different timestamps.
1330 redirect_stdio(TEMPORARY_LOG_FILE);
1331
Doug Zongker19a8e242014-01-21 09:25:41 -08001332 printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start));
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001333
Doug Zongkerd4208f92010-09-20 12:16:13 -07001334 load_volume_table();
Tao Bao26112e52016-02-25 12:29:40 -08001335 has_cache = volume_for_path(CACHE_ROOT) != nullptr;
1336
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001337 get_args(&argc, &argv);
1338
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001339 const char *update_package = NULL;
Tao Baoe39a9bc2015-03-31 12:19:05 -07001340 bool should_wipe_data = false;
Tao Baoc679f932015-03-30 09:43:49 -07001341 bool should_wipe_cache = false;
Tao Bao862a4c12016-06-02 11:16:50 -07001342 bool should_brick = false;
Tao Bao145d8612015-03-25 15:51:15 -07001343 bool show_text = false;
Tao Baoc679f932015-03-30 09:43:49 -07001344 bool sideload = false;
1345 bool sideload_auto_reboot = false;
Doug Zongkere5d5ac72012-04-12 11:01:22 -07001346 bool just_exit = false;
Doug Zongkerb1d12632014-03-18 10:32:12 -07001347 bool shutdown_after = false;
Tianjie Xu3c62b672016-02-05 18:25:58 -08001348 int retry_count = 0;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001349
1350 int arg;
Tao Bao862a4c12016-06-02 11:16:50 -07001351 int option_index;
1352 while ((arg = getopt_long(argc, argv, "", OPTIONS, &option_index)) != -1) {
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001353 switch (arg) {
Tianjie Xu3c62b672016-02-05 18:25:58 -08001354 case 'n': android::base::ParseInt(optarg, &retry_count, 0); break;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001355 case 'u': update_package = optarg; break;
Tao Baoe39a9bc2015-03-31 12:19:05 -07001356 case 'w': should_wipe_data = true; break;
Tao Baoc679f932015-03-30 09:43:49 -07001357 case 'c': should_wipe_cache = true; break;
Tao Bao145d8612015-03-25 15:51:15 -07001358 case 't': show_text = true; break;
Tao Baoc679f932015-03-30 09:43:49 -07001359 case 's': sideload = true; break;
1360 case 'a': sideload = true; sideload_auto_reboot = true; break;
Doug Zongkere5d5ac72012-04-12 11:01:22 -07001361 case 'x': just_exit = true; break;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001362 case 'l': locale = optarg; break;
Doug Zongkerc87bab12013-11-25 13:53:25 -08001363 case 'g': {
1364 if (stage == NULL || *stage == '\0') {
1365 char buffer[20] = "1/";
1366 strncat(buffer, optarg, sizeof(buffer)-3);
1367 stage = strdup(buffer);
1368 }
1369 break;
1370 }
Doug Zongkerb1d12632014-03-18 10:32:12 -07001371 case 'p': shutdown_after = true; break;
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -07001372 case 'r': reason = optarg; break;
Tao Bao862a4c12016-06-02 11:16:50 -07001373 case 0: {
1374 if (strcmp(OPTIONS[option_index].name, "brick") == 0) {
1375 should_brick = true;
1376 break;
1377 }
1378 break;
1379 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001380 case '?':
1381 LOGE("Invalid command argument\n");
1382 continue;
1383 }
1384 }
1385
Tao Bao26112e52016-02-25 12:29:40 -08001386 if (locale == nullptr && has_cache) {
Doug Zongker02ec6b82012-08-22 17:26:40 -07001387 load_locale_from_cache();
1388 }
1389 printf("locale is [%s]\n", locale);
Doug Zongker0d32f252014-02-13 15:07:56 -08001390 printf("stage is [%s]\n", stage);
Jeff Sharkeya6e13ae2014-09-24 11:46:17 -07001391 printf("reason is [%s]\n", reason);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001392
1393 Device* device = make_device();
1394 ui = device->GetUI();
Doug Zongker7c3ae452013-05-14 11:03:02 -07001395 gCurrentUI = ui;
Doug Zongker02ec6b82012-08-22 17:26:40 -07001396
Doug Zongker5fa8c232012-09-18 12:37:02 -07001397 ui->SetLocale(locale);
Doug Zongker02ec6b82012-08-22 17:26:40 -07001398 ui->Init();
Doug Zongkerc87bab12013-11-25 13:53:25 -08001399
1400 int st_cur, st_max;
1401 if (stage != NULL && sscanf(stage, "%d/%d", &st_cur, &st_max) == 2) {
1402 ui->SetStage(st_cur, st_max);
1403 }
1404
Doug Zongker02ec6b82012-08-22 17:26:40 -07001405 ui->SetBackground(RecoveryUI::NONE);
1406 if (show_text) ui->ShowText(true);
1407
Stephen Smalley779701d2012-02-09 14:13:23 -05001408 struct selinux_opt seopts[] = {
1409 { SELABEL_OPT_PATH, "/file_contexts" }
1410 };
1411
1412 sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
1413
1414 if (!sehandle) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001415 ui->Print("Warning: No file_contexts\n");
Stephen Smalley779701d2012-02-09 14:13:23 -05001416 }
Stephen Smalley779701d2012-02-09 14:13:23 -05001417
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001418 device->StartRecovery();
Doug Zongkerefa1bab2010-02-01 15:59:12 -08001419
Doug Zongker56c51052010-07-01 09:18:44 -07001420 printf("Command:");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001421 for (arg = 0; arg < argc; arg++) {
Doug Zongker56c51052010-07-01 09:18:44 -07001422 printf(" \"%s\"", argv[arg]);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001423 }
Doug Zongker9b125b02010-09-22 12:01:37 -07001424 printf("\n");
1425
1426 if (update_package) {
1427 // For backwards compatibility on the cache partition only, if
1428 // we're given an old 'root' path "CACHE:foo", change it to
1429 // "/cache/foo".
1430 if (strncmp(update_package, "CACHE:", 6) == 0) {
1431 int len = strlen(update_package) + 10;
Doug Zongker28ce47c2011-10-28 10:33:05 -07001432 char* modified_path = (char*)malloc(len);
Jeremy Compostella1b7d9b72015-07-29 17:17:03 +02001433 if (modified_path) {
1434 strlcpy(modified_path, "/cache/", len);
1435 strlcat(modified_path, update_package+6, len);
1436 printf("(replacing path \"%s\" with \"%s\")\n",
1437 update_package, modified_path);
1438 update_package = modified_path;
1439 }
1440 else
1441 printf("modified_path allocation failed\n");
Doug Zongker9b125b02010-09-22 12:01:37 -07001442 }
1443 }
1444 printf("\n");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001445
1446 property_list(print_property, NULL);
Doug Zongker56c51052010-07-01 09:18:44 -07001447 printf("\n");
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001448
Elliott Hughesbb78d622015-04-09 20:51:08 -07001449 ui->Print("Supported API: %d\n", RECOVERY_API_VERSION);
1450
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001451 int status = INSTALL_SUCCESS;
1452
Doug Zongker540d57f2011-01-18 13:36:58 -08001453 if (update_package != NULL) {
Tao Bao37c45022016-04-29 15:37:05 -07001454 // It's not entirely true that we will modify the flash. But we want
1455 // to log the update attempt since update_package is non-NULL.
1456 modified_flash = true;
1457
Yabin Cui53e7a062016-02-17 12:21:52 -08001458 if (!is_battery_ok()) {
1459 ui->Print("battery capacity is not enough for installing package, needed is %d%%\n",
1460 BATTERY_OK_PERCENTAGE);
1461 status = INSTALL_SKIPPED;
1462 } else {
1463 status = install_package(update_package, &should_wipe_cache,
1464 TEMPORARY_INSTALL_FILE, true);
1465 if (status == INSTALL_SUCCESS && should_wipe_cache) {
1466 wipe_cache(false, device);
1467 }
1468 if (status != INSTALL_SUCCESS) {
1469 ui->Print("Installation aborted.\n");
Tianjie Xu3c62b672016-02-05 18:25:58 -08001470 // When I/O error happens, reboot and retry installation EIO_RETRY_COUNT
1471 // times before we abandon this OTA update.
1472 if (status == INSTALL_RETRY && retry_count < EIO_RETRY_COUNT) {
1473 copy_logs();
1474 set_retry_bootloader_message(retry_count, argc, argv);
1475 // Print retry count on screen.
1476 ui->Print("Retry attempt %d\n", retry_count);
Doug Zongker7c3ae452013-05-14 11:03:02 -07001477
Tianjie Xu3c62b672016-02-05 18:25:58 -08001478 // Reboot and retry the update
1479 int ret = property_set(ANDROID_RB_PROPERTY, "reboot,recovery");
1480 if (ret < 0) {
1481 ui->Print("Reboot failed\n");
1482 } else {
1483 while (true) {
1484 pause();
1485 }
1486 }
1487 }
Yabin Cui53e7a062016-02-17 12:21:52 -08001488 // If this is an eng or userdebug build, then automatically
1489 // turn the text display on if the script fails so the error
1490 // message is visible.
1491 if (is_ro_debuggable()) {
1492 ui->ShowText(true);
1493 }
Doug Zongker7c3ae452013-05-14 11:03:02 -07001494 }
1495 }
Tao Baoe39a9bc2015-03-31 12:19:05 -07001496 } else if (should_wipe_data) {
1497 if (!wipe_data(false, device)) {
1498 status = INSTALL_ERROR;
1499 }
Tao Baoc679f932015-03-30 09:43:49 -07001500 } else if (should_wipe_cache) {
Tao Baoe39a9bc2015-03-31 12:19:05 -07001501 if (!wipe_cache(false, device)) {
1502 status = INSTALL_ERROR;
1503 }
Tao Bao862a4c12016-06-02 11:16:50 -07001504 } else if (should_brick) {
1505 if (!brick_device()) {
1506 status = INSTALL_ERROR;
1507 }
Tao Baoc679f932015-03-30 09:43:49 -07001508 } else if (sideload) {
1509 // 'adb reboot sideload' acts the same as user presses key combinations
1510 // to enter the sideload mode. When 'sideload-auto-reboot' is used, text
1511 // display will NOT be turned on by default. And it will reboot after
1512 // sideload finishes even if there are errors. Unless one turns on the
1513 // text display during the installation. This is to enable automated
1514 // testing.
1515 if (!sideload_auto_reboot) {
1516 ui->ShowText(true);
1517 }
1518 status = apply_from_adb(ui, &should_wipe_cache, TEMPORARY_INSTALL_FILE);
1519 if (status == INSTALL_SUCCESS && should_wipe_cache) {
Tao Baoe39a9bc2015-03-31 12:19:05 -07001520 if (!wipe_cache(false, device)) {
1521 status = INSTALL_ERROR;
1522 }
Tao Baoc679f932015-03-30 09:43:49 -07001523 }
1524 ui->Print("\nInstall from ADB complete (status: %d).\n", status);
1525 if (sideload_auto_reboot) {
1526 ui->Print("Rebooting automatically.\n");
1527 }
Doug Zongkere5d5ac72012-04-12 11:01:22 -07001528 } else if (!just_exit) {
Doug Zongker02ec6b82012-08-22 17:26:40 -07001529 status = INSTALL_NONE; // No command specified
1530 ui->SetBackground(RecoveryUI::NO_COMMAND);
Tao Bao785d22c2015-05-04 09:34:29 -07001531
1532 // http://b/17489952
1533 // If this is an eng or userdebug build, automatically turn on the
1534 // text display if no command is specified.
1535 if (is_ro_debuggable()) {
1536 ui->ShowText(true);
1537 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001538 }
1539
Tao Baoc679f932015-03-30 09:43:49 -07001540 if (!sideload_auto_reboot && (status == INSTALL_ERROR || status == INSTALL_CORRUPT)) {
Doug Zongkerf24fd7e2013-07-02 11:43:25 -07001541 copy_logs();
Doug Zongker02ec6b82012-08-22 17:26:40 -07001542 ui->SetBackground(RecoveryUI::ERROR);
1543 }
Tao Baoc679f932015-03-30 09:43:49 -07001544
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001545 Device::BuiltinAction after = shutdown_after ? Device::SHUTDOWN : Device::REBOOT;
Yabin Cui53e7a062016-02-17 12:21:52 -08001546 if ((status != INSTALL_SUCCESS && status != INSTALL_SKIPPED && !sideload_auto_reboot) ||
1547 ui->IsTextVisible()) {
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001548 Device::BuiltinAction temp = prompt_and_wait(device, status);
Tao Baoc679f932015-03-30 09:43:49 -07001549 if (temp != Device::NO_ACTION) {
1550 after = temp;
1551 }
Doug Zongker8674a722010-09-15 11:08:23 -07001552 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001553
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001554 // Save logs and clean up before rebooting or shutting down.
Tianjie Xuc14d95d2016-03-24 11:50:34 -07001555 finish_recovery();
Doug Zongker8d9d3d52014-04-01 13:20:23 -07001556
1557 switch (after) {
1558 case Device::SHUTDOWN:
1559 ui->Print("Shutting down...\n");
1560 property_set(ANDROID_RB_PROPERTY, "shutdown,");
1561 break;
1562
1563 case Device::REBOOT_BOOTLOADER:
1564 ui->Print("Rebooting to bootloader...\n");
1565 property_set(ANDROID_RB_PROPERTY, "reboot,bootloader");
1566 break;
1567
1568 default:
1569 ui->Print("Rebooting...\n");
1570 property_set(ANDROID_RB_PROPERTY, "reboot,");
1571 break;
Doug Zongkerb1d12632014-03-18 10:32:12 -07001572 }
Tao Bao75238632015-05-27 14:46:17 -07001573 while (true) {
1574 pause();
1575 }
1576 // Should be unreachable.
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001577 return EXIT_SUCCESS;
1578}