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platform_bootable_recovery/recovery.cpp
Tianjie Xu 6957555e29 Retry the update if ApplyBSDiffPatch | ApplyImagePatch fails 
We have seen one case when bspatch failed likely due to patch
corruption. Since the package has passed verification before, we want
to reboot and retry the patch command again since there's no
alternative for users.

We won't delete the stash before reboot, and the src has passed SHA1
check. If there's an error on the patch, it will fail the package
verification during retry.

Bug: 37855643
Test: angler reboots and retries the update when bspatch fails.
Change-Id: I2ebac9621bd1f0649bb301b9a28a0dd079ed4e1d
2017-05-23 17:36:56 -07:00

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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <inttypes.h>
#include <limits.h>
#include <linux/fs.h>
#include <linux/input.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/klog.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <algorithm>
#include <chrono>
#include <memory>
#include <string>
#include <vector>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <android-base/unique_fd.h>
#include <bootloader_message/bootloader_message.h>
#include <cutils/android_reboot.h>
#include <cutils/properties.h> /* for property_list */
#include <healthd/BatteryMonitor.h>
#include <private/android_logger.h> /* private pmsg functions */
#include <private/android_filesystem_config.h> /* for AID_SYSTEM */
#include <selinux/label.h>
#include <selinux/selinux.h>
#include <ziparchive/zip_archive.h>
#include "adb_install.h"
#include "common.h"
#include "device.h"
#include "error_code.h"
#include "fuse_sdcard_provider.h"
#include "fuse_sideload.h"
#include "install.h"
#include "minadbd/minadbd.h"
#include "minui/minui.h"
#include "otautil/DirUtil.h"
#include "roots.h"
#include "rotate_logs.h"
#include "screen_ui.h"
#include "stub_ui.h"
#include "ui.h"
static const struct option OPTIONS[] = {
{ "update_package", required_argument, NULL, 'u' },
{ "retry_count", required_argument, NULL, 'n' },
{ "wipe_data", no_argument, NULL, 'w' },
{ "wipe_cache", no_argument, NULL, 'c' },
{ "show_text", no_argument, NULL, 't' },
{ "sideload", no_argument, NULL, 's' },
{ "sideload_auto_reboot", no_argument, NULL, 'a' },
{ "just_exit", no_argument, NULL, 'x' },
{ "locale", required_argument, NULL, 'l' },
{ "shutdown_after", no_argument, NULL, 'p' },
{ "reason", required_argument, NULL, 'r' },
{ "security", no_argument, NULL, 'e'},
{ "wipe_ab", no_argument, NULL, 0 },
{ "wipe_package_size", required_argument, NULL, 0 },
{ "prompt_and_wipe_data", no_argument, NULL, 0 },
{ NULL, 0, NULL, 0 },
};
// More bootreasons can be found in "system/core/bootstat/bootstat.cpp".
static const std::vector<std::string> bootreason_blacklist {
"kernel_panic",
"Panic",
};
static const char *CACHE_LOG_DIR = "/cache/recovery";
static const char *COMMAND_FILE = "/cache/recovery/command";
static const char *LOG_FILE = "/cache/recovery/log";
static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
static const char *LOCALE_FILE = "/cache/recovery/last_locale";
static const char *CONVERT_FBE_DIR = "/tmp/convert_fbe";
static const char *CONVERT_FBE_FILE = "/tmp/convert_fbe/convert_fbe";
static const char *CACHE_ROOT = "/cache";
static const char *DATA_ROOT = "/data";
static const char *SDCARD_ROOT = "/sdcard";
static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";
static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install";
static const char *LAST_KMSG_FILE = "/cache/recovery/last_kmsg";
static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
// We will try to apply the update package 5 times at most in case of an I/O error or
// bspatch | imgpatch error.
static const int RETRY_LIMIT = 4;
static const int BATTERY_READ_TIMEOUT_IN_SEC = 10;
// GmsCore enters recovery mode to install package when having enough battery
// percentage. Normally, the threshold is 40% without charger and 20% with charger.
// So we should check battery with a slightly lower limitation.
static const int BATTERY_OK_PERCENTAGE = 20;
static const int BATTERY_WITH_CHARGER_OK_PERCENTAGE = 15;
static constexpr const char* RECOVERY_WIPE = "/etc/recovery.wipe";
static constexpr const char* DEFAULT_LOCALE = "en-US";
static std::string locale;
static bool has_cache = false;
RecoveryUI* ui = nullptr;
bool modified_flash = false;
std::string stage;
const char* reason = nullptr;
struct selabel_handle* sehandle;
/*
* The recovery tool communicates with the main system through /cache files.
* /cache/recovery/command - INPUT - command line for tool, one arg per line
* /cache/recovery/log - OUTPUT - combined log file from recovery run(s)
*
* The arguments which may be supplied in the recovery.command file:
* --update_package=path - verify install an OTA package file
* --wipe_data - erase user data (and cache), then reboot
* --prompt_and_wipe_data - prompt the user that data is corrupt,
* with their consent erase user data (and cache), then reboot
* --wipe_cache - wipe cache (but not user data), then reboot
* --set_encrypted_filesystem=on|off - enables / diasables encrypted fs
* --just_exit - do nothing; exit and reboot
*
* After completing, we remove /cache/recovery/command and reboot.
* Arguments may also be supplied in the bootloader control block (BCB).
* These important scenarios must be safely restartable at any point:
*
* FACTORY RESET
* 1. user selects "factory reset"
* 2. main system writes "--wipe_data" to /cache/recovery/command
* 3. main system reboots into recovery
* 4. get_args() writes BCB with "boot-recovery" and "--wipe_data"
* -- after this, rebooting will restart the erase --
* 5. erase_volume() reformats /data
* 6. erase_volume() reformats /cache
* 7. finish_recovery() erases BCB
* -- after this, rebooting will restart the main system --
* 8. main() calls reboot() to boot main system
*
* OTA INSTALL
* 1. main system downloads OTA package to /cache/some-filename.zip
* 2. main system writes "--update_package=/cache/some-filename.zip"
* 3. main system reboots into recovery
* 4. get_args() writes BCB with "boot-recovery" and "--update_package=..."
* -- after this, rebooting will attempt to reinstall the update --
* 5. install_package() attempts to install the update
* NOTE: the package install must itself be restartable from any point
* 6. finish_recovery() erases BCB
* -- after this, rebooting will (try to) restart the main system --
* 7. ** if install failed **
* 7a. prompt_and_wait() shows an error icon and waits for the user
* 7b. the user reboots (pulling the battery, etc) into the main system
*/
// open a given path, mounting partitions as necessary
FILE* fopen_path(const char *path, const char *mode) {
if (ensure_path_mounted(path) != 0) {
LOG(ERROR) << "Can't mount " << path;
return NULL;
}
// When writing, try to create the containing directory, if necessary.
// Use generous permissions, the system (init.rc) will reset them.
if (strchr("wa", mode[0])) dirCreateHierarchy(path, 0777, NULL, 1, sehandle);
FILE *fp = fopen(path, mode);
return fp;
}
// close a file, log an error if the error indicator is set
static void check_and_fclose(FILE *fp, const char *name) {
fflush(fp);
if (fsync(fileno(fp)) == -1) {
PLOG(ERROR) << "Failed to fsync " << name;
}
if (ferror(fp)) {
PLOG(ERROR) << "Error in " << name;
}
fclose(fp);
}
bool is_ro_debuggable() {
return android::base::GetBoolProperty("ro.debuggable", false);
}
bool reboot(const std::string& command) {
std::string cmd = command;
if (android::base::GetBoolProperty("ro.boot.quiescent", false)) {
cmd += ",quiescent";
}
return android::base::SetProperty(ANDROID_RB_PROPERTY, cmd);
}
static void redirect_stdio(const char* filename) {
int pipefd[2];
if (pipe(pipefd) == -1) {
PLOG(ERROR) << "pipe failed";
// Fall back to traditional logging mode without timestamps.
// If these fail, there's not really anywhere to complain...
freopen(filename, "a", stdout); setbuf(stdout, NULL);
freopen(filename, "a", stderr); setbuf(stderr, NULL);
return;
}
pid_t pid = fork();
if (pid == -1) {
PLOG(ERROR) << "fork failed";
// Fall back to traditional logging mode without timestamps.
// If these fail, there's not really anywhere to complain...
freopen(filename, "a", stdout); setbuf(stdout, NULL);
freopen(filename, "a", stderr); setbuf(stderr, NULL);
return;
}
if (pid == 0) {
/// Close the unused write end.
close(pipefd[1]);
auto start = std::chrono::steady_clock::now();
// Child logger to actually write to the log file.
FILE* log_fp = fopen(filename, "a");
if (log_fp == nullptr) {
PLOG(ERROR) << "fopen \"" << filename << "\" failed";
close(pipefd[0]);
_exit(EXIT_FAILURE);
}
FILE* pipe_fp = fdopen(pipefd[0], "r");
if (pipe_fp == nullptr) {
PLOG(ERROR) << "fdopen failed";
check_and_fclose(log_fp, filename);
close(pipefd[0]);
_exit(EXIT_FAILURE);
}
char* line = nullptr;
size_t len = 0;
while (getline(&line, &len, pipe_fp) != -1) {
auto now = std::chrono::steady_clock::now();
double duration = std::chrono::duration_cast<std::chrono::duration<double>>(
now - start).count();
if (line[0] == '\n') {
fprintf(log_fp, "[%12.6lf]\n", duration);
} else {
fprintf(log_fp, "[%12.6lf] %s", duration, line);
}
fflush(log_fp);
}
PLOG(ERROR) << "getline failed";
free(line);
check_and_fclose(log_fp, filename);
close(pipefd[0]);
_exit(EXIT_FAILURE);
} else {
// Redirect stdout/stderr to the logger process.
// Close the unused read end.
close(pipefd[0]);
setbuf(stdout, nullptr);
setbuf(stderr, nullptr);
if (dup2(pipefd[1], STDOUT_FILENO) == -1) {
PLOG(ERROR) << "dup2 stdout failed";
}
if (dup2(pipefd[1], STDERR_FILENO) == -1) {
PLOG(ERROR) << "dup2 stderr failed";
}
close(pipefd[1]);
}
}
// command line args come from, in decreasing precedence:
// - the actual command line
// - the bootloader control block (one per line, after "recovery")
// - the contents of COMMAND_FILE (one per line)
static std::vector<std::string> get_args(const int argc, char** const argv) {
CHECK_GT(argc, 0);
bootloader_message boot = {};
std::string err;
if (!read_bootloader_message(&boot, &err)) {
LOG(ERROR) << err;
// If fails, leave a zeroed bootloader_message.
boot = {};
}
stage = std::string(boot.stage);
if (boot.command[0] != 0) {
std::string boot_command = std::string(boot.command, sizeof(boot.command));
LOG(INFO) << "Boot command: " << boot_command;
}
if (boot.status[0] != 0) {
std::string boot_status = std::string(boot.status, sizeof(boot.status));
LOG(INFO) << "Boot status: " << boot_status;
}
std::vector<std::string> args(argv, argv + argc);
// --- if arguments weren't supplied, look in the bootloader control block
if (args.size() == 1) {
boot.recovery[sizeof(boot.recovery) - 1] = '\0'; // Ensure termination
std::string boot_recovery(boot.recovery);
std::vector<std::string> tokens = android::base::Split(boot_recovery, "\n");
if (!tokens.empty() && tokens[0] == "recovery") {
for (auto it = tokens.begin() + 1; it != tokens.end(); it++) {
// Skip empty and '\0'-filled tokens.
if (!it->empty() && (*it)[0] != '\0') args.push_back(std::move(*it));
}
LOG(INFO) << "Got " << args.size() << " arguments from boot message";
} else if (boot.recovery[0] != 0) {
LOG(ERROR) << "Bad boot message: \"" << boot_recovery << "\"";
}
}
// --- if that doesn't work, try the command file (if we have /cache).
if (args.size() == 1 && has_cache) {
std::string content;
if (ensure_path_mounted(COMMAND_FILE) == 0 &&
android::base::ReadFileToString(COMMAND_FILE, &content)) {
std::vector<std::string> tokens = android::base::Split(content, "\n");
// All the arguments in COMMAND_FILE are needed (unlike the BCB message,
// COMMAND_FILE doesn't use filename as the first argument).
for (auto it = tokens.begin(); it != tokens.end(); it++) {
// Skip empty and '\0'-filled tokens.
if (!it->empty() && (*it)[0] != '\0') args.push_back(std::move(*it));
}
LOG(INFO) << "Got " << args.size() << " arguments from " << COMMAND_FILE;
}
}
// Write the arguments (excluding the filename in args[0]) back into the
// bootloader control block. So the device will always boot into recovery to
// finish the pending work, until finish_recovery() is called.
std::vector<std::string> options(args.cbegin() + 1, args.cend());
if (!update_bootloader_message(options, &err)) {
LOG(ERROR) << "Failed to set BCB message: " << err;
}
return args;
}
// Set the BCB to reboot back into recovery (it won't resume the install from
// sdcard though).
static void set_sdcard_update_bootloader_message() {
std::vector<std::string> options;
std::string err;
if (!update_bootloader_message(options, &err)) {
LOG(ERROR) << "Failed to set BCB message: " << err;
}
}
// Read from kernel log into buffer and write out to file.
static void save_kernel_log(const char* destination) {
int klog_buf_len = klogctl(KLOG_SIZE_BUFFER, 0, 0);
if (klog_buf_len <= 0) {
PLOG(ERROR) << "Error getting klog size";
return;
}
std::string buffer(klog_buf_len, 0);
int n = klogctl(KLOG_READ_ALL, &buffer[0], klog_buf_len);
if (n == -1) {
PLOG(ERROR) << "Error in reading klog";
return;
}
buffer.resize(n);
android::base::WriteStringToFile(buffer, destination);
}
// write content to the current pmsg session.
static ssize_t __pmsg_write(const char *filename, const char *buf, size_t len) {
return __android_log_pmsg_file_write(LOG_ID_SYSTEM, ANDROID_LOG_INFO,
filename, buf, len);
}
static void copy_log_file_to_pmsg(const char* source, const char* destination) {
std::string content;
android::base::ReadFileToString(source, &content);
__pmsg_write(destination, content.c_str(), content.length());
}
// How much of the temp log we have copied to the copy in cache.
static off_t tmplog_offset = 0;
static void copy_log_file(const char* source, const char* destination, bool append) {
FILE* dest_fp = fopen_path(destination, append ? "a" : "w");
if (dest_fp == nullptr) {
PLOG(ERROR) << "Can't open " << destination;
} else {
FILE* source_fp = fopen(source, "r");
if (source_fp != nullptr) {
if (append) {
fseeko(source_fp, tmplog_offset, SEEK_SET); // Since last write
}
char buf[4096];
size_t bytes;
while ((bytes = fread(buf, 1, sizeof(buf), source_fp)) != 0) {
fwrite(buf, 1, bytes, dest_fp);
}
if (append) {
tmplog_offset = ftello(source_fp);
}
check_and_fclose(source_fp, source);
}
check_and_fclose(dest_fp, destination);
}
}
static void copy_logs() {
// We only rotate and record the log of the current session if there are
// actual attempts to modify the flash, such as wipes, installs from BCB
// or menu selections. This is to avoid unnecessary rotation (and
// possible deletion) of log files, if it does not do anything loggable.
if (!modified_flash) {
return;
}
// Always write to pmsg, this allows the OTA logs to be caught in logcat -L
copy_log_file_to_pmsg(TEMPORARY_LOG_FILE, LAST_LOG_FILE);
copy_log_file_to_pmsg(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE);
// We can do nothing for now if there's no /cache partition.
if (!has_cache) {
return;
}
ensure_path_mounted(LAST_LOG_FILE);
ensure_path_mounted(LAST_KMSG_FILE);
rotate_logs(LAST_LOG_FILE, LAST_KMSG_FILE);
// Copy logs to cache so the system can find out what happened.
copy_log_file(TEMPORARY_LOG_FILE, LOG_FILE, true);
copy_log_file(TEMPORARY_LOG_FILE, LAST_LOG_FILE, false);
copy_log_file(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE, false);
save_kernel_log(LAST_KMSG_FILE);
chmod(LOG_FILE, 0600);
chown(LOG_FILE, AID_SYSTEM, AID_SYSTEM);
chmod(LAST_KMSG_FILE, 0600);
chown(LAST_KMSG_FILE, AID_SYSTEM, AID_SYSTEM);
chmod(LAST_LOG_FILE, 0640);
chmod(LAST_INSTALL_FILE, 0644);
sync();
}
// clear the recovery command and prepare to boot a (hopefully working) system,
// copy our log file to cache as well (for the system to read). This function is
// idempotent: call it as many times as you like.
static void finish_recovery() {
// Save the locale to cache, so if recovery is next started up
// without a --locale argument (eg, directly from the bootloader)
// it will use the last-known locale.
if (!locale.empty() && has_cache) {
LOG(INFO) << "Saving locale \"" << locale << "\"";
FILE* fp = fopen_path(LOCALE_FILE, "w");
if (!android::base::WriteStringToFd(locale, fileno(fp))) {
PLOG(ERROR) << "Failed to save locale to " << LOCALE_FILE;
}
check_and_fclose(fp, LOCALE_FILE);
}
copy_logs();
// Reset to normal system boot so recovery won't cycle indefinitely.
std::string err;
if (!clear_bootloader_message(&err)) {
LOG(ERROR) << "Failed to clear BCB message: " << err;
}
// Remove the command file, so recovery won't repeat indefinitely.
if (has_cache) {
if (ensure_path_mounted(COMMAND_FILE) != 0 || (unlink(COMMAND_FILE) && errno != ENOENT)) {
LOG(WARNING) << "Can't unlink " << COMMAND_FILE;
}
ensure_path_unmounted(CACHE_ROOT);
}
sync(); // For good measure.
}
struct saved_log_file {
std::string name;
struct stat sb;
std::string data;
};
static bool erase_volume(const char* volume) {
bool is_cache = (strcmp(volume, CACHE_ROOT) == 0);
bool is_data = (strcmp(volume, DATA_ROOT) == 0);
ui->SetBackground(RecoveryUI::ERASING);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
std::vector<saved_log_file> log_files;
if (is_cache) {
// If we're reformatting /cache, we load any past logs
// (i.e. "/cache/recovery/last_*") and the current log
// ("/cache/recovery/log") into memory, so we can restore them after
// the reformat.
ensure_path_mounted(volume);
struct dirent* de;
std::unique_ptr<DIR, decltype(&closedir)> d(opendir(CACHE_LOG_DIR), closedir);
if (d) {
while ((de = readdir(d.get())) != nullptr) {
if (strncmp(de->d_name, "last_", 5) == 0 || strcmp(de->d_name, "log") == 0) {
std::string path = android::base::StringPrintf("%s/%s", CACHE_LOG_DIR, de->d_name);
struct stat sb;
if (stat(path.c_str(), &sb) == 0) {
// truncate files to 512kb
if (sb.st_size > (1 << 19)) {
sb.st_size = 1 << 19;
}
std::string data(sb.st_size, '\0');
FILE* f = fopen(path.c_str(), "rb");
fread(&data[0], 1, data.size(), f);
fclose(f);
log_files.emplace_back(saved_log_file{ path, sb, data });
}
}
}
} else {
if (errno != ENOENT) {
PLOG(ERROR) << "Failed to opendir " << CACHE_LOG_DIR;
}
}
}
ui->Print("Formatting %s...\n", volume);
ensure_path_unmounted(volume);
int result;
if (is_data && reason && strcmp(reason, "convert_fbe") == 0) {
// Create convert_fbe breadcrumb file to signal to init
// to convert to file based encryption, not full disk encryption
if (mkdir(CONVERT_FBE_DIR, 0700) != 0) {
ui->Print("Failed to make convert_fbe dir %s\n", strerror(errno));
return true;
}
FILE* f = fopen(CONVERT_FBE_FILE, "wb");
if (!f) {
ui->Print("Failed to convert to file encryption %s\n", strerror(errno));
return true;
}
fclose(f);
result = format_volume(volume, CONVERT_FBE_DIR);
remove(CONVERT_FBE_FILE);
rmdir(CONVERT_FBE_DIR);
} else {
result = format_volume(volume);
}
if (is_cache) {
// Re-create the log dir and write back the log entries.
if (ensure_path_mounted(CACHE_LOG_DIR) == 0 &&
dirCreateHierarchy(CACHE_LOG_DIR, 0777, nullptr, false, sehandle) == 0) {
for (const auto& log : log_files) {
if (!android::base::WriteStringToFile(log.data, log.name, log.sb.st_mode, log.sb.st_uid,
log.sb.st_gid)) {
PLOG(ERROR) << "Failed to write to " << log.name;
}
}
} else {
PLOG(ERROR) << "Failed to mount / create " << CACHE_LOG_DIR;
}
// Any part of the log we'd copied to cache is now gone.
// Reset the pointer so we copy from the beginning of the temp
// log.
tmplog_offset = 0;
copy_logs();
}
return (result == 0);
}
// Display a menu with the specified 'headers' and 'items'. Device specific HandleMenuKey() may
// return a positive number beyond the given range. Caller sets 'menu_only' to true to ensure only
// a menu item gets selected. 'initial_selection' controls the initial cursor location. Returns the
// (non-negative) chosen item number, or -1 if timed out waiting for input.
static int get_menu_selection(const char* const* headers, const char* const* items, bool menu_only,
int initial_selection, Device* device) {
// Throw away keys pressed previously, so user doesn't accidentally trigger menu items.
ui->FlushKeys();
ui->StartMenu(headers, items, initial_selection);
int selected = initial_selection;
int chosen_item = -1;
while (chosen_item < 0) {
int key = ui->WaitKey();
if (key == -1) { // WaitKey() timed out.
if (ui->WasTextEverVisible()) {
continue;
} else {
LOG(INFO) << "Timed out waiting for key input; rebooting.";
ui->EndMenu();
return -1;
}
}
bool visible = ui->IsTextVisible();
int action = device->HandleMenuKey(key, visible);
if (action < 0) {
switch (action) {
case Device::kHighlightUp:
selected = ui->SelectMenu(--selected);
break;
case Device::kHighlightDown:
selected = ui->SelectMenu(++selected);
break;
case Device::kInvokeItem:
chosen_item = selected;
break;
case Device::kNoAction:
break;
}
} else if (!menu_only) {
chosen_item = action;
}
}
ui->EndMenu();
return chosen_item;
}
// Returns the selected filename, or an empty string.
static std::string browse_directory(const std::string& path, Device* device) {
ensure_path_mounted(path.c_str());
std::unique_ptr<DIR, decltype(&closedir)> d(opendir(path.c_str()), closedir);
if (!d) {
PLOG(ERROR) << "error opening " << path;
return "";
}
std::vector<std::string> dirs;
std::vector<std::string> zips = { "../" }; // "../" is always the first entry.
dirent* de;
while ((de = readdir(d.get())) != nullptr) {
std::string name(de->d_name);
if (de->d_type == DT_DIR) {
// Skip "." and ".." entries.
if (name == "." || name == "..") continue;
dirs.push_back(name + "/");
} else if (de->d_type == DT_REG && android::base::EndsWithIgnoreCase(name, ".zip")) {
zips.push_back(name);
}
}
std::sort(dirs.begin(), dirs.end());
std::sort(zips.begin(), zips.end());
// Append dirs to the zips list.
zips.insert(zips.end(), dirs.begin(), dirs.end());
const char* entries[zips.size() + 1];
entries[zips.size()] = nullptr;
for (size_t i = 0; i < zips.size(); i++) {
entries[i] = zips[i].c_str();
}
const char* headers[] = { "Choose a package to install:", path.c_str(), nullptr };
int chosen_item = 0;
while (true) {
chosen_item = get_menu_selection(headers, entries, true, chosen_item, device);
const std::string& item = zips[chosen_item];
if (chosen_item == 0) {
// Go up but continue browsing (if the caller is browse_directory).
return "";
}
std::string new_path = path + "/" + item;
if (new_path.back() == '/') {
// Recurse down into a subdirectory.
new_path.pop_back();
std::string result = browse_directory(new_path, device);
if (!result.empty()) return result;
} else {
// Selected a zip file: return the path to the caller.
return new_path;
}
}
// Unreachable.
}
static bool yes_no(Device* device, const char* question1, const char* question2) {
const char* headers[] = { question1, question2, NULL };
const char* items[] = { " No", " Yes", NULL };
int chosen_item = get_menu_selection(headers, items, true, 0, device);
return (chosen_item == 1);
}
static bool ask_to_wipe_data(Device* device) {
return yes_no(device, "Wipe all user data?", " THIS CAN NOT BE UNDONE!");
}
// Return true on success.
static bool wipe_data(Device* device) {
modified_flash = true;
ui->Print("\n-- Wiping data...\n");
bool success =
device->PreWipeData() &&
erase_volume("/data") &&
(has_cache ? erase_volume("/cache") : true) &&
device->PostWipeData();
ui->Print("Data wipe %s.\n", success ? "complete" : "failed");
return success;
}
static bool prompt_and_wipe_data(Device* device) {
const char* const headers[] = {
"Can't load Android system. Your data may be corrupt.",
"If you continue to get this message, you may need to",
"perform a factory data reset and erase all user data",
"stored on this device.",
NULL
};
const char* const items[] = {
"Try again",
"Factory data reset",
NULL
};
for (;;) {
int chosen_item = get_menu_selection(headers, items, true, 0, device);
if (chosen_item != 1) {
return true; // Just reboot, no wipe; not a failure, user asked for it
}
if (ask_to_wipe_data(device)) {
return wipe_data(device);
}
}
}
// Return true on success.
static bool wipe_cache(bool should_confirm, Device* device) {
if (!has_cache) {
ui->Print("No /cache partition found.\n");
return false;
}
if (should_confirm && !yes_no(device, "Wipe cache?", " THIS CAN NOT BE UNDONE!")) {
return false;
}
modified_flash = true;
ui->Print("\n-- Wiping cache...\n");
bool success = erase_volume("/cache");
ui->Print("Cache wipe %s.\n", success ? "complete" : "failed");
return success;
}
// Secure-wipe a given partition. It uses BLKSECDISCARD, if supported. Otherwise, it goes with
// BLKDISCARD (if device supports BLKDISCARDZEROES) or BLKZEROOUT.
static bool secure_wipe_partition(const std::string& partition) {
android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(partition.c_str(), O_WRONLY)));
if (fd == -1) {
PLOG(ERROR) << "Failed to open \"" << partition << "\"";
return false;
}
uint64_t range[2] = { 0, 0 };
if (ioctl(fd, BLKGETSIZE64, &range[1]) == -1 || range[1] == 0) {
PLOG(ERROR) << "Failed to get partition size";
return false;
}
LOG(INFO) << "Secure-wiping \"" << partition << "\" from " << range[0] << " to " << range[1];
LOG(INFO) << " Trying BLKSECDISCARD...";
if (ioctl(fd, BLKSECDISCARD, &range) == -1) {
PLOG(WARNING) << " Failed";
// Use BLKDISCARD if it zeroes out blocks, otherwise use BLKZEROOUT.
unsigned int zeroes;
if (ioctl(fd, BLKDISCARDZEROES, &zeroes) == 0 && zeroes != 0) {
LOG(INFO) << " Trying BLKDISCARD...";
if (ioctl(fd, BLKDISCARD, &range) == -1) {
PLOG(ERROR) << " Failed";
return false;
}
} else {
LOG(INFO) << " Trying BLKZEROOUT...";
if (ioctl(fd, BLKZEROOUT, &range) == -1) {
PLOG(ERROR) << " Failed";
return false;
}
}
}
LOG(INFO) << " Done";
return true;
}
// Check if the wipe package matches expectation:
// 1. verify the package.
// 2. check metadata (ota-type, pre-device and serial number if having one).
static bool check_wipe_package(size_t wipe_package_size) {
if (wipe_package_size == 0) {
LOG(ERROR) << "wipe_package_size is zero";
return false;
}
std::string wipe_package;
std::string err_str;
if (!read_wipe_package(&wipe_package, wipe_package_size, &err_str)) {
PLOG(ERROR) << "Failed to read wipe package";
return false;
}
if (!verify_package(reinterpret_cast<const unsigned char*>(wipe_package.data()),
wipe_package.size())) {
LOG(ERROR) << "Failed to verify package";
return false;
}
// Extract metadata
ZipArchiveHandle zip;
int err = OpenArchiveFromMemory(static_cast<void*>(&wipe_package[0]), wipe_package.size(),
"wipe_package", &zip);
if (err != 0) {
LOG(ERROR) << "Can't open wipe package : " << ErrorCodeString(err);
return false;
}
std::string metadata;
if (!read_metadata_from_package(zip, &metadata)) {
CloseArchive(zip);
return false;
}
CloseArchive(zip);
// Check metadata
std::vector<std::string> lines = android::base::Split(metadata, "\n");
bool ota_type_matched = false;
bool device_type_matched = false;
bool has_serial_number = false;
bool serial_number_matched = false;
for (const auto& line : lines) {
if (line == "ota-type=BRICK") {
ota_type_matched = true;
} else if (android::base::StartsWith(line, "pre-device=")) {
std::string device_type = line.substr(strlen("pre-device="));
std::string real_device_type = android::base::GetProperty("ro.build.product", "");
device_type_matched = (device_type == real_device_type);
} else if (android::base::StartsWith(line, "serialno=")) {
std::string serial_no = line.substr(strlen("serialno="));
std::string real_serial_no = android::base::GetProperty("ro.serialno", "");
has_serial_number = true;
serial_number_matched = (serial_no == real_serial_no);
}
}
return ota_type_matched && device_type_matched && (!has_serial_number || serial_number_matched);
}
// Wipe the current A/B device, with a secure wipe of all the partitions in
// RECOVERY_WIPE.
static bool wipe_ab_device(size_t wipe_package_size) {
ui->SetBackground(RecoveryUI::ERASING);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
if (!check_wipe_package(wipe_package_size)) {
LOG(ERROR) << "Failed to verify wipe package";
return false;
}
std::string partition_list;
if (!android::base::ReadFileToString(RECOVERY_WIPE, &partition_list)) {
LOG(ERROR) << "failed to read \"" << RECOVERY_WIPE << "\"";
return false;
}
std::vector<std::string> lines = android::base::Split(partition_list, "\n");
for (const std::string& line : lines) {
std::string partition = android::base::Trim(line);
// Ignore '#' comment or empty lines.
if (android::base::StartsWith(partition, "#") || partition.empty()) {
continue;
}
// Proceed anyway even if it fails to wipe some partition.
secure_wipe_partition(partition);
}
return true;
}
static void choose_recovery_file(Device* device) {
std::vector<std::string> entries;
if (has_cache) {
for (int i = 0; i < KEEP_LOG_COUNT; i++) {
auto add_to_entries = [&](const char* filename) {
std::string log_file(filename);
if (i > 0) {
log_file += "." + std::to_string(i);
}
if (ensure_path_mounted(log_file.c_str()) == 0 && access(log_file.c_str(), R_OK) == 0) {
entries.push_back(std::move(log_file));
}
};
// Add LAST_LOG_FILE + LAST_LOG_FILE.x
add_to_entries(LAST_LOG_FILE);
// Add LAST_KMSG_FILE + LAST_KMSG_FILE.x
add_to_entries(LAST_KMSG_FILE);
}
} else {
// If cache partition is not found, view /tmp/recovery.log instead.
if (access(TEMPORARY_LOG_FILE, R_OK) == -1) {
return;
} else {
entries.push_back(TEMPORARY_LOG_FILE);
}
}
entries.push_back("Back");
std::vector<const char*> menu_entries(entries.size());
std::transform(entries.cbegin(), entries.cend(), menu_entries.begin(),
[](const std::string& entry) { return entry.c_str(); });
menu_entries.push_back(nullptr);
const char* headers[] = { "Select file to view", nullptr };
int chosen_item = 0;
while (true) {
chosen_item = get_menu_selection(headers, menu_entries.data(), true, chosen_item, device);
if (entries[chosen_item] == "Back") break;
ui->ShowFile(entries[chosen_item].c_str());
}
}
static void run_graphics_test() {
// Switch to graphics screen.
ui->ShowText(false);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
sleep(1);
ui->SetBackground(RecoveryUI::ERROR);
sleep(1);
ui->SetBackground(RecoveryUI::NO_COMMAND);
sleep(1);
ui->SetBackground(RecoveryUI::ERASING);
sleep(1);
// Calling SetBackground() after SetStage() to trigger a redraw.
ui->SetStage(1, 3);
ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
sleep(1);
ui->SetStage(2, 3);
ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
sleep(1);
ui->SetStage(3, 3);
ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
sleep(1);
ui->SetStage(-1, -1);
ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
ui->SetProgressType(RecoveryUI::DETERMINATE);
ui->ShowProgress(1.0, 10.0);
float fraction = 0.0;
for (size_t i = 0; i < 100; ++i) {
fraction += .01;
ui->SetProgress(fraction);
usleep(100000);
}
ui->ShowText(true);
}
// How long (in seconds) we wait for the fuse-provided package file to
// appear, before timing out.
#define SDCARD_INSTALL_TIMEOUT 10
static int apply_from_sdcard(Device* device, bool* wipe_cache) {
modified_flash = true;
if (ensure_path_mounted(SDCARD_ROOT) != 0) {
ui->Print("\n-- Couldn't mount %s.\n", SDCARD_ROOT);
return INSTALL_ERROR;
}
std::string path = browse_directory(SDCARD_ROOT, device);
if (path.empty()) {
ui->Print("\n-- No package file selected.\n");
ensure_path_unmounted(SDCARD_ROOT);
return INSTALL_ERROR;
}
ui->Print("\n-- Install %s ...\n", path.c_str());
set_sdcard_update_bootloader_message();
// We used to use fuse in a thread as opposed to a process. Since accessing
// through fuse involves going from kernel to userspace to kernel, it leads
// to deadlock when a page fault occurs. (Bug: 26313124)
pid_t child;
if ((child = fork()) == 0) {
bool status = start_sdcard_fuse(path.c_str());
_exit(status ? EXIT_SUCCESS : EXIT_FAILURE);
}
// FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the fuse in child
// process is ready.
int result = INSTALL_ERROR;
int status;
bool waited = false;
for (int i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) {
if (waitpid(child, &status, WNOHANG) == -1) {
result = INSTALL_ERROR;
waited = true;
break;
}
struct stat sb;
if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &sb) == -1) {
if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) {
sleep(1);
continue;
} else {
LOG(ERROR) << "Timed out waiting for the fuse-provided package.";
result = INSTALL_ERROR;
kill(child, SIGKILL);
break;
}
}
result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache,
TEMPORARY_INSTALL_FILE, false, 0/*retry_count*/);
break;
}
if (!waited) {
// Calling stat() on this magic filename signals the fuse
// filesystem to shut down.
struct stat sb;
stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &sb);
waitpid(child, &status, 0);
}
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
LOG(ERROR) << "Error exit from the fuse process: " << WEXITSTATUS(status);
}
ensure_path_unmounted(SDCARD_ROOT);
return result;
}
// Returns REBOOT, SHUTDOWN, or REBOOT_BOOTLOADER. Returning NO_ACTION means to take the default,
// which is to reboot or shutdown depending on if the --shutdown_after flag was passed to recovery.
static Device::BuiltinAction prompt_and_wait(Device* device, int status) {
for (;;) {
finish_recovery();
switch (status) {
case INSTALL_SUCCESS:
case INSTALL_NONE:
ui->SetBackground(RecoveryUI::NO_COMMAND);
break;
case INSTALL_ERROR:
case INSTALL_CORRUPT:
ui->SetBackground(RecoveryUI::ERROR);
break;
}
ui->SetProgressType(RecoveryUI::EMPTY);
int chosen_item = get_menu_selection(nullptr, device->GetMenuItems(), false, 0, device);
// Device-specific code may take some action here. It may return one of the core actions
// handled in the switch statement below.
Device::BuiltinAction chosen_action =
(chosen_item == -1) ? Device::REBOOT : device->InvokeMenuItem(chosen_item);
bool should_wipe_cache = false;
switch (chosen_action) {
case Device::NO_ACTION:
break;
case Device::REBOOT:
case Device::SHUTDOWN:
case Device::REBOOT_BOOTLOADER:
return chosen_action;
case Device::WIPE_DATA:
if (ui->IsTextVisible()) {
if (ask_to_wipe_data(device)) {
wipe_data(device);
}
} else {
wipe_data(device);
return Device::NO_ACTION;
}
break;
case Device::WIPE_CACHE:
wipe_cache(ui->IsTextVisible(), device);
if (!ui->IsTextVisible()) return Device::NO_ACTION;
break;
case Device::APPLY_ADB_SIDELOAD:
case Device::APPLY_SDCARD:
{
bool adb = (chosen_action == Device::APPLY_ADB_SIDELOAD);
if (adb) {
status = apply_from_adb(&should_wipe_cache, TEMPORARY_INSTALL_FILE);
} else {
status = apply_from_sdcard(device, &should_wipe_cache);
}
if (status == INSTALL_SUCCESS && should_wipe_cache) {
if (!wipe_cache(false, device)) {
status = INSTALL_ERROR;
}
}
if (status != INSTALL_SUCCESS) {
ui->SetBackground(RecoveryUI::ERROR);
ui->Print("Installation aborted.\n");
copy_logs();
} else if (!ui->IsTextVisible()) {
return Device::NO_ACTION; // reboot if logs aren't visible
} else {
ui->Print("\nInstall from %s complete.\n", adb ? "ADB" : "SD card");
}
}
break;
case Device::VIEW_RECOVERY_LOGS:
choose_recovery_file(device);
break;
case Device::RUN_GRAPHICS_TEST:
run_graphics_test();
break;
case Device::MOUNT_SYSTEM:
// For a system image built with the root directory (i.e. system_root_image == "true"), we
// mount it to /system_root, and symlink /system to /system_root/system to make adb shell
// work (the symlink is created through the build system). (Bug: 22855115)
if (android::base::GetBoolProperty("ro.build.system_root_image", false)) {
if (ensure_path_mounted_at("/", "/system_root") != -1) {
ui->Print("Mounted /system.\n");
}
} else {
if (ensure_path_mounted("/system") != -1) {
ui->Print("Mounted /system.\n");
}
}
break;
}
}
}
static void
print_property(const char *key, const char *name, void *cookie) {
printf("%s=%s\n", key, name);
}
static std::string load_locale_from_cache() {
if (ensure_path_mounted(LOCALE_FILE) != 0) {
LOG(ERROR) << "Can't mount " << LOCALE_FILE;
return "";
}
std::string content;
if (!android::base::ReadFileToString(LOCALE_FILE, &content)) {
PLOG(ERROR) << "Can't read " << LOCALE_FILE;
return "";
}
return android::base::Trim(content);
}
void ui_print(const char* format, ...) {
std::string buffer;
va_list ap;
va_start(ap, format);
android::base::StringAppendV(&buffer, format, ap);
va_end(ap);
if (ui != nullptr) {
ui->Print("%s", buffer.c_str());
} else {
fputs(buffer.c_str(), stdout);
}
}
static constexpr char log_characters[] = "VDIWEF";
void UiLogger(android::base::LogId id, android::base::LogSeverity severity,
const char* tag, const char* file, unsigned int line,
const char* message) {
if (severity >= android::base::ERROR && ui != nullptr) {
ui->Print("E:%s\n", message);
} else {
fprintf(stdout, "%c:%s\n", log_characters[severity], message);
}
}
static bool is_battery_ok() {
struct healthd_config healthd_config = {
.batteryStatusPath = android::String8(android::String8::kEmptyString),
.batteryHealthPath = android::String8(android::String8::kEmptyString),
.batteryPresentPath = android::String8(android::String8::kEmptyString),
.batteryCapacityPath = android::String8(android::String8::kEmptyString),
.batteryVoltagePath = android::String8(android::String8::kEmptyString),
.batteryTemperaturePath = android::String8(android::String8::kEmptyString),
.batteryTechnologyPath = android::String8(android::String8::kEmptyString),
.batteryCurrentNowPath = android::String8(android::String8::kEmptyString),
.batteryCurrentAvgPath = android::String8(android::String8::kEmptyString),
.batteryChargeCounterPath = android::String8(android::String8::kEmptyString),
.batteryFullChargePath = android::String8(android::String8::kEmptyString),
.batteryCycleCountPath = android::String8(android::String8::kEmptyString),
.energyCounter = NULL,
.boot_min_cap = 0,
.screen_on = NULL
};
healthd_board_init(&healthd_config);
android::BatteryMonitor monitor;
monitor.init(&healthd_config);
int wait_second = 0;
while (true) {
int charge_status = monitor.getChargeStatus();
// Treat unknown status as charged.
bool charged = (charge_status != android::BATTERY_STATUS_DISCHARGING &&
charge_status != android::BATTERY_STATUS_NOT_CHARGING);
android::BatteryProperty capacity;
android::status_t status = monitor.getProperty(android::BATTERY_PROP_CAPACITY, &capacity);
ui_print("charge_status %d, charged %d, status %d, capacity %lld\n", charge_status,
charged, status, capacity.valueInt64);
// At startup, the battery drivers in devices like N5X/N6P take some time to load
// the battery profile. Before the load finishes, it reports value 50 as a fake
// capacity. BATTERY_READ_TIMEOUT_IN_SEC is set that the battery drivers are expected
// to finish loading the battery profile earlier than 10 seconds after kernel startup.
if (status == 0 && capacity.valueInt64 == 50) {
if (wait_second < BATTERY_READ_TIMEOUT_IN_SEC) {
sleep(1);
wait_second++;
continue;
}
}
// If we can't read battery percentage, it may be a device without battery. In this
// situation, use 100 as a fake battery percentage.
if (status != 0) {
capacity.valueInt64 = 100;
}
return (charged && capacity.valueInt64 >= BATTERY_WITH_CHARGER_OK_PERCENTAGE) ||
(!charged && capacity.valueInt64 >= BATTERY_OK_PERCENTAGE);
}
}
static void set_retry_bootloader_message(int retry_count, const std::vector<std::string>& args) {
std::vector<std::string> options;
for (const auto& arg : args) {
if (!android::base::StartsWith(arg, "--retry_count")) {
options.push_back(arg);
}
}
// Increment the retry counter by 1.
options.push_back(android::base::StringPrintf("--retry_count=%d", retry_count + 1));
std::string err;
if (!update_bootloader_message(options, &err)) {
LOG(ERROR) << err;
}
}
static bool bootreason_in_blacklist() {
std::string bootreason = android::base::GetProperty("ro.boot.bootreason", "");
if (!bootreason.empty()) {
for (const auto& str : bootreason_blacklist) {
if (strcasecmp(str.c_str(), bootreason.c_str()) == 0) {
return true;
}
}
}
return false;
}
static void log_failure_code(ErrorCode code, const char *update_package) {
std::vector<std::string> log_buffer = {
update_package,
"0", // install result
"error: " + std::to_string(code),
};
std::string log_content = android::base::Join(log_buffer, "\n");
if (!android::base::WriteStringToFile(log_content, TEMPORARY_INSTALL_FILE)) {
PLOG(ERROR) << "failed to write " << TEMPORARY_INSTALL_FILE;
}
// Also write the info into last_log.
LOG(INFO) << log_content;
}
int main(int argc, char **argv) {
// We don't have logcat yet under recovery; so we'll print error on screen and
// log to stdout (which is redirected to recovery.log) as we used to do.
android::base::InitLogging(argv, &UiLogger);
// Take last pmsg contents and rewrite it to the current pmsg session.
static const char filter[] = "recovery/";
// Do we need to rotate?
bool doRotate = false;
__android_log_pmsg_file_read(
LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter,
logbasename, &doRotate);
// Take action to refresh pmsg contents
__android_log_pmsg_file_read(
LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter,
logrotate, &doRotate);
// If this binary is started with the single argument "--adbd",
// instead of being the normal recovery binary, it turns into kind
// of a stripped-down version of adbd that only supports the
// 'sideload' command. Note this must be a real argument, not
// anything in the command file or bootloader control block; the
// only way recovery should be run with this argument is when it
// starts a copy of itself from the apply_from_adb() function.
if (argc == 2 && strcmp(argv[1], "--adbd") == 0) {
minadbd_main();
return 0;
}
time_t start = time(NULL);
// redirect_stdio should be called only in non-sideload mode. Otherwise
// we may have two logger instances with different timestamps.
redirect_stdio(TEMPORARY_LOG_FILE);
printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start));
load_volume_table();
has_cache = volume_for_path(CACHE_ROOT) != nullptr;
std::vector<std::string> args = get_args(argc, argv);
std::vector<char*> args_to_parse(args.size());
std::transform(args.cbegin(), args.cend(), args_to_parse.begin(),
[](const std::string& arg) { return const_cast<char*>(arg.c_str()); });
const char *update_package = NULL;
bool should_wipe_data = false;
bool should_prompt_and_wipe_data = false;
bool should_wipe_cache = false;
bool should_wipe_ab = false;
size_t wipe_package_size = 0;
bool show_text = false;
bool sideload = false;
bool sideload_auto_reboot = false;
bool just_exit = false;
bool shutdown_after = false;
int retry_count = 0;
bool security_update = false;
int arg;
int option_index;
while ((arg = getopt_long(args_to_parse.size(), args_to_parse.data(), "", OPTIONS,
&option_index)) != -1) {
switch (arg) {
case 'n': android::base::ParseInt(optarg, &retry_count, 0); break;
case 'u': update_package = optarg; break;
case 'w': should_wipe_data = true; break;
case 'c': should_wipe_cache = true; break;
case 't': show_text = true; break;
case 's': sideload = true; break;
case 'a': sideload = true; sideload_auto_reboot = true; break;
case 'x': just_exit = true; break;
case 'l': locale = optarg; break;
case 'p': shutdown_after = true; break;
case 'r': reason = optarg; break;
case 'e': security_update = true; break;
case 0: {
std::string option = OPTIONS[option_index].name;
if (option == "wipe_ab") {
should_wipe_ab = true;
} else if (option == "wipe_package_size") {
android::base::ParseUint(optarg, &wipe_package_size);
} else if (option == "prompt_and_wipe_data") {
should_prompt_and_wipe_data = true;
}
break;
}
case '?':
LOG(ERROR) << "Invalid command argument";
continue;
}
}
if (locale.empty()) {
if (has_cache) {
locale = load_locale_from_cache();
}
if (locale.empty()) {
locale = DEFAULT_LOCALE;
}
}
printf("locale is [%s]\n", locale.c_str());
printf("stage is [%s]\n", stage.c_str());
printf("reason is [%s]\n", reason);
Device* device = make_device();
if (android::base::GetBoolProperty("ro.boot.quiescent", false)) {
printf("Quiescent recovery mode.\n");
ui = new StubRecoveryUI();
} else {
ui = device->GetUI();
if (!ui->Init(locale)) {
printf("Failed to initialize UI, use stub UI instead.\n");
ui = new StubRecoveryUI();
}
}
// Set background string to "installing security update" for security update,
// otherwise set it to "installing system update".
ui->SetSystemUpdateText(security_update);
int st_cur, st_max;
if (!stage.empty() && sscanf(stage.c_str(), "%d/%d", &st_cur, &st_max) == 2) {
ui->SetStage(st_cur, st_max);
}
ui->SetBackground(RecoveryUI::NONE);
if (show_text) ui->ShowText(true);
struct selinux_opt seopts[] = {
{ SELABEL_OPT_PATH, "/file_contexts" }
};
sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
if (!sehandle) {
ui->Print("Warning: No file_contexts\n");
}
device->StartRecovery();
printf("Command:");
for (const auto& arg : args) {
printf(" \"%s\"", arg.c_str());
}
printf("\n\n");
property_list(print_property, NULL);
printf("\n");
ui->Print("Supported API: %d\n", RECOVERY_API_VERSION);
int status = INSTALL_SUCCESS;
if (update_package != NULL) {
// It's not entirely true that we will modify the flash. But we want
// to log the update attempt since update_package is non-NULL.
modified_flash = true;
if (!is_battery_ok()) {
ui->Print("battery capacity is not enough for installing package, needed is %d%%\n",
BATTERY_OK_PERCENTAGE);
// Log the error code to last_install when installation skips due to
// low battery.
log_failure_code(kLowBattery, update_package);
status = INSTALL_SKIPPED;
} else if (bootreason_in_blacklist()) {
// Skip update-on-reboot when bootreason is kernel_panic or similar
ui->Print("bootreason is in the blacklist; skip OTA installation\n");
log_failure_code(kBootreasonInBlacklist, update_package);
status = INSTALL_SKIPPED;
} else {
status = install_package(update_package, &should_wipe_cache,
TEMPORARY_INSTALL_FILE, true, retry_count);
if (status == INSTALL_SUCCESS && should_wipe_cache) {
wipe_cache(false, device);
}
if (status != INSTALL_SUCCESS) {
ui->Print("Installation aborted.\n");
// When I/O error happens, reboot and retry installation RETRY_LIMIT
// times before we abandon this OTA update.
if (status == INSTALL_RETRY && retry_count < RETRY_LIMIT) {
copy_logs();
set_retry_bootloader_message(retry_count, args);
// Print retry count on screen.
ui->Print("Retry attempt %d\n", retry_count);
// Reboot and retry the update
if (!reboot("reboot,recovery")) {
ui->Print("Reboot failed\n");
} else {
while (true) {
pause();
}
}
}
// If this is an eng or userdebug build, then automatically
// turn the text display on if the script fails so the error
// message is visible.
if (is_ro_debuggable()) {
ui->ShowText(true);
}
}
}
} else if (should_wipe_data) {
if (!wipe_data(device)) {
status = INSTALL_ERROR;
}
} else if (should_prompt_and_wipe_data) {
ui->ShowText(true);
ui->SetBackground(RecoveryUI::ERROR);
if (!prompt_and_wipe_data(device)) {
status = INSTALL_ERROR;
}
ui->ShowText(false);
} else if (should_wipe_cache) {
if (!wipe_cache(false, device)) {
status = INSTALL_ERROR;
}
} else if (should_wipe_ab) {
if (!wipe_ab_device(wipe_package_size)) {
status = INSTALL_ERROR;
}
} else if (sideload) {
// 'adb reboot sideload' acts the same as user presses key combinations
// to enter the sideload mode. When 'sideload-auto-reboot' is used, text
// display will NOT be turned on by default. And it will reboot after
// sideload finishes even if there are errors. Unless one turns on the
// text display during the installation. This is to enable automated
// testing.
if (!sideload_auto_reboot) {
ui->ShowText(true);
}
status = apply_from_adb(&should_wipe_cache, TEMPORARY_INSTALL_FILE);
if (status == INSTALL_SUCCESS && should_wipe_cache) {
if (!wipe_cache(false, device)) {
status = INSTALL_ERROR;
}
}
ui->Print("\nInstall from ADB complete (status: %d).\n", status);
if (sideload_auto_reboot) {
ui->Print("Rebooting automatically.\n");
}
} else if (!just_exit) {
status = INSTALL_NONE; // No command specified
ui->SetBackground(RecoveryUI::NO_COMMAND);
// http://b/17489952
// If this is an eng or userdebug build, automatically turn on the
// text display if no command is specified.
if (is_ro_debuggable()) {
ui->ShowText(true);
}
}
if (status == INSTALL_ERROR || status == INSTALL_CORRUPT) {
ui->SetBackground(RecoveryUI::ERROR);
if (!ui->IsTextVisible()) {
sleep(5);
}
}
Device::BuiltinAction after = shutdown_after ? Device::SHUTDOWN : Device::REBOOT;
// 1. If the recovery menu is visible, prompt and wait for commands.
// 2. If the state is INSTALL_NONE, wait for commands. (i.e. In user build, manually reboot into
// recovery to sideload a package.)
// 3. sideload_auto_reboot is an option only available in user-debug build, reboot the device
// without waiting.
// 4. In all other cases, reboot the device. Therefore, normal users will observe the device
// reboot after it shows the "error" screen for 5s.
if ((status == INSTALL_NONE && !sideload_auto_reboot) || ui->IsTextVisible()) {
Device::BuiltinAction temp = prompt_and_wait(device, status);
if (temp != Device::NO_ACTION) {
after = temp;
}
}
// Save logs and clean up before rebooting or shutting down.
finish_recovery();
switch (after) {
case Device::SHUTDOWN:
ui->Print("Shutting down...\n");
android::base::SetProperty(ANDROID_RB_PROPERTY, "shutdown,");
break;
case Device::REBOOT_BOOTLOADER:
ui->Print("Rebooting to bootloader...\n");
android::base::SetProperty(ANDROID_RB_PROPERTY, "reboot,bootloader");
break;
default:
ui->Print("Rebooting...\n");
reboot("reboot,");
break;
}
while (true) {
pause();
}
// Should be unreachable.
return EXIT_SUCCESS;
}
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