diff options
| -rw-r--r-- | common.h | 1 | ||||
| -rw-r--r-- | recovery.cpp | 172 | ||||
| -rw-r--r-- | recovery.h (renamed from private/recovery.h) | 7 | ||||
| -rw-r--r-- | recovery_main.cpp | 226 |
4 files changed, 235 insertions, 171 deletions
@@ -32,6 +32,7 @@ struct selabel_handle; extern struct selabel_handle* sehandle; extern RecoveryUI* ui; extern bool modified_flash; +extern bool has_cache; // The current stage, e.g. "1/2". extern std::string stage; diff --git a/recovery.cpp b/recovery.cpp index e427998a8..b1a2900fd 100644 --- a/recovery.cpp +++ b/recovery.cpp @@ -14,7 +14,7 @@ * limitations under the License. */ -#include "private/recovery.h" +#include "recovery.h" #include <ctype.h> #include <dirent.h> @@ -32,7 +32,6 @@ #include <sys/stat.h> #include <sys/types.h> #include <sys/wait.h> -#include <time.h> #include <unistd.h> #include <algorithm> @@ -49,12 +48,8 @@ #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 <selinux/android.h> -#include <selinux/label.h> -#include <selinux/selinux.h> #include <ziparchive/zip_archive.h> #include "adb_install.h" @@ -70,7 +65,6 @@ #include "otautil/sysutil.h" #include "roots.h" #include "screen_ui.h" -#include "stub_ui.h" #include "ui.h" static constexpr const char* CACHE_LOG_DIR = "/cache/recovery"; @@ -88,13 +82,9 @@ static constexpr const char* SDCARD_ROOT = "/sdcard"; // into target_files.zip. Assert the version defined in code and in Android.mk are consistent. static_assert(kRecoveryApiVersion == RECOVERY_API_VERSION, "Mismatching recovery API versions."); -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. @@ -146,77 +136,6 @@ bool is_ro_debuggable() { return android::base::GetBoolProperty("ro.debuggable", false); } -// 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() { @@ -921,21 +840,6 @@ 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; @@ -1059,15 +963,7 @@ static void log_failure_code(ErrorCode code, const std::string& update_package) LOG(INFO) << log_content; } -int start_recovery(int argc, char** argv) { - time_t start = time(nullptr); - - printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start)); - - load_volume_table(); - has_cache = volume_for_mount_point(CACHE_ROOT) != nullptr; - - std::vector<std::string> args = get_args(argc, argv); +Device::BuiltinAction start_recovery(Device* device, const std::vector<std::string>& args) { 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()); }); @@ -1097,7 +993,6 @@ int start_recovery(int argc, char** argv) { 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; @@ -1112,7 +1007,7 @@ int start_recovery(int argc, char** argv) { &option_index)) != -1) { switch (arg) { case 't': - show_text = true; + // Handled in recovery_main.cpp break; case 'x': just_exit = true; @@ -1120,7 +1015,7 @@ int start_recovery(int argc, char** argv) { case 0: { std::string option = OPTIONS[option_index].name; if (option == "locale") { - locale = optarg; + // Handled in recovery_main.cpp } else if (option == "prompt_and_wipe_data") { should_prompt_and_wipe_data = true; } else if (option == "reason") { @@ -1155,37 +1050,9 @@ int start_recovery(int argc, char** argv) { } } - if (locale.empty()) { - if (has_cache) { - locale = load_locale_from_cache(); - } - - if (locale.empty()) { - static constexpr const char* DEFAULT_LOCALE = "en-US"; - 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"); - device->ResetUI(new StubRecoveryUI()); - } else { - if (!device->GetUI()->Init(locale)) { - printf("Failed to initialize UI; using stub UI instead.\n"); - device->ResetUI(new StubRecoveryUI()); - } - } - ui = device->GetUI(); - - if (!has_cache) { - device->RemoveMenuItemForAction(Device::WIPE_CACHE); - } - // Set background string to "installing security update" for security update, // otherwise set it to "installing system update". ui->SetSystemUpdateText(security_update); @@ -1195,15 +1062,6 @@ int start_recovery(int argc, char** argv) { ui->SetStage(st_cur, st_max); } - ui->SetBackground(RecoveryUI::NONE); - if (show_text) ui->ShowText(true); - - sehandle = selinux_android_file_context_handle(); - selinux_android_set_sehandle(sehandle); - if (!sehandle) { - ui->Print("Warning: No file_contexts\n"); - } - device->StartRecovery(); printf("Command:"); @@ -1353,25 +1211,5 @@ int start_recovery(int argc, char** argv) { // 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; + return after; } diff --git a/private/recovery.h b/recovery.h index 5b2ca4b3f..00e22daa6 100644 --- a/private/recovery.h +++ b/recovery.h @@ -16,4 +16,9 @@ #pragma once -int start_recovery(int argc, char** argv); +#include <string> +#include <vector> + +#include "device.h" + +Device::BuiltinAction start_recovery(Device* device, const std::vector<std::string>& args); diff --git a/recovery_main.cpp b/recovery_main.cpp index 3147511ee..e21c782d0 100644 --- a/recovery_main.cpp +++ b/recovery_main.cpp @@ -14,22 +14,57 @@ * limitations under the License. */ +#include <errno.h> +#include <fcntl.h> +#include <getopt.h> +#include <inttypes.h> +#include <limits.h> +#include <linux/fs.h> +#include <stdarg.h> #include <stdio.h> #include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <time.h> #include <unistd.h> -#include <chrono> +#include <algorithm> +#include <string> +#include <vector> +#include <android-base/file.h> #include <android-base/logging.h> +#include <android-base/properties.h> +#include <android-base/strings.h> +#include <bootloader_message/bootloader_message.h> +#include <cutils/android_reboot.h> #include <private/android_logger.h> /* private pmsg functions */ +#include <selinux/android.h> +#include <selinux/label.h> +#include <selinux/selinux.h> #include "common.h" +#include "device.h" #include "logging.h" #include "minadbd/minadbd.h" #include "otautil/paths.h" -#include "private/recovery.h" +#include "otautil/sysutil.h" +#include "recovery.h" +#include "roots.h" +#include "stub_ui.h" #include "ui.h" +static constexpr const char* COMMAND_FILE = "/cache/recovery/command"; +static constexpr const char* LOCALE_FILE = "/cache/recovery/last_locale"; + +static constexpr const char* CACHE_ROOT = "/cache"; + +bool has_cache = false; + +RecoveryUI* ui = nullptr; +struct selabel_handle* sehandle; + static void UiLogger(android::base::LogId /* id */, android::base::LogSeverity severity, const char* /* tag */, const char* /* file */, unsigned int /* line */, const char* message) { @@ -41,6 +76,92 @@ static void UiLogger(android::base::LogId /* id */, android::base::LogSeverity s } } +// 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; +} + +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); +} + static void redirect_stdio(const char* filename) { int pipefd[2]; if (pipe(pipefd) == -1) { @@ -154,9 +275,108 @@ int main(int argc, char** argv) { return 0; } + time_t start = time(nullptr); + // redirect_stdio should be called only in non-sideload mode. Otherwise we may have two logger // instances with different timestamps. redirect_stdio(Paths::Get().temporary_log_file().c_str()); - return start_recovery(argc, argv); + printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start)); + + load_volume_table(); + has_cache = volume_for_mount_point(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()); }); + + static constexpr struct option OPTIONS[] = { + { "locale", required_argument, nullptr, 0 }, + { "show_text", no_argument, nullptr, 't' }, + { nullptr, 0, nullptr, 0 }, + }; + + bool show_text = false; + std::string locale; + + int arg; + int option_index; + while ((arg = getopt_long(args_to_parse.size(), args_to_parse.data(), "", OPTIONS, + &option_index)) != -1) { + switch (arg) { + case 't': + show_text = true; + break; + case 0: { + std::string option = OPTIONS[option_index].name; + if (option == "locale") { + locale = optarg; + } + break; + } + } + } + + if (locale.empty()) { + if (has_cache) { + locale = load_locale_from_cache(); + } + + if (locale.empty()) { + static constexpr const char* DEFAULT_LOCALE = "en-US"; + locale = DEFAULT_LOCALE; + } + } + + printf("locale is [%s]\n", locale.c_str()); + + Device* device = make_device(); + if (android::base::GetBoolProperty("ro.boot.quiescent", false)) { + printf("Quiescent recovery mode.\n"); + device->ResetUI(new StubRecoveryUI()); + } else { + if (!device->GetUI()->Init(locale)) { + printf("Failed to initialize UI; using stub UI instead.\n"); + device->ResetUI(new StubRecoveryUI()); + } + } + ui = device->GetUI(); + + if (!has_cache) { + device->RemoveMenuItemForAction(Device::WIPE_CACHE); + } + + ui->SetBackground(RecoveryUI::NONE); + if (show_text) ui->ShowText(true); + + sehandle = selinux_android_file_context_handle(); + selinux_android_set_sehandle(sehandle); + if (!sehandle) { + ui->Print("Warning: No file_contexts\n"); + } + + Device::BuiltinAction after = start_recovery(device, args); + + 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; } |