Merge tag 'android-10.0.0_r25' into aosp10-4
Android 10.0.0 release 25
diff --git a/install/install.cpp b/install/install.cpp
new file mode 100644
index 0000000..0e3cccf
--- /dev/null
+++ b/install/install.cpp
@@ -0,0 +1,741 @@
+/*
+ * 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 "install/install.h"
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <algorithm>
+#include <atomic>
+#include <chrono>
+#include <condition_variable>
+#include <functional>
+#include <limits>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/parsedouble.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 <vintf/VintfObjectRecovery.h>
+
+#include "install/package.h"
+#include "install/verifier.h"
+#include "install/wipe_data.h"
+#include "otautil/error_code.h"
+#include "otautil/paths.h"
+#include "otautil/roots.h"
+#include "otautil/sysutil.h"
+#include "otautil/thermalutil.h"
+#include "private/setup_commands.h"
+#include "recovery_ui/ui.h"
+
+using namespace std::chrono_literals;
+
+static constexpr int kRecoveryApiVersion = 3;
+// Assert the version defined in code and in Android.mk are consistent.
+static_assert(kRecoveryApiVersion == RECOVERY_API_VERSION, "Mismatching recovery API versions.");
+
+// Default allocation of progress bar segments to operations
+static constexpr int VERIFICATION_PROGRESS_TIME = 60;
+static constexpr float VERIFICATION_PROGRESS_FRACTION = 0.25;
+
+static std::condition_variable finish_log_temperature;
+
+bool ReadMetadataFromPackage(ZipArchiveHandle zip, std::map<std::string, std::string>* metadata) {
+ CHECK(metadata != nullptr);
+
+ static constexpr const char* METADATA_PATH = "META-INF/com/android/metadata";
+ ZipString path(METADATA_PATH);
+ ZipEntry entry;
+ if (FindEntry(zip, path, &entry) != 0) {
+ LOG(ERROR) << "Failed to find " << METADATA_PATH;
+ return false;
+ }
+
+ uint32_t length = entry.uncompressed_length;
+ std::string metadata_string(length, '\0');
+ int32_t err =
+ ExtractToMemory(zip, &entry, reinterpret_cast<uint8_t*>(&metadata_string[0]), length);
+ if (err != 0) {
+ LOG(ERROR) << "Failed to extract " << METADATA_PATH << ": " << ErrorCodeString(err);
+ return false;
+ }
+
+ for (const std::string& line : android::base::Split(metadata_string, "\n")) {
+ size_t eq = line.find('=');
+ if (eq != std::string::npos) {
+ metadata->emplace(android::base::Trim(line.substr(0, eq)),
+ android::base::Trim(line.substr(eq + 1)));
+ }
+ }
+
+ return true;
+}
+
+// Gets the value for the given key in |metadata|. Returns an emtpy string if the key isn't
+// present.
+static std::string get_value(const std::map<std::string, std::string>& metadata,
+ const std::string& key) {
+ const auto& it = metadata.find(key);
+ return (it == metadata.end()) ? "" : it->second;
+}
+
+static std::string OtaTypeToString(OtaType type) {
+ switch (type) {
+ case OtaType::AB:
+ return "AB";
+ case OtaType::BLOCK:
+ return "BLOCK";
+ case OtaType::BRICK:
+ return "BRICK";
+ }
+}
+
+// Read the build.version.incremental of src/tgt from the metadata and log it to last_install.
+static void ReadSourceTargetBuild(const std::map<std::string, std::string>& metadata,
+ std::vector<std::string>* log_buffer) {
+ // Examples of the pre-build and post-build strings in metadata:
+ // pre-build-incremental=2943039
+ // post-build-incremental=2951741
+ auto source_build = get_value(metadata, "pre-build-incremental");
+ if (!source_build.empty()) {
+ log_buffer->push_back("source_build: " + source_build);
+ }
+
+ auto target_build = get_value(metadata, "post-build-incremental");
+ if (!target_build.empty()) {
+ log_buffer->push_back("target_build: " + target_build);
+ }
+}
+
+// Checks the build version, fingerprint and timestamp in the metadata of the A/B package.
+// Downgrading is not allowed unless explicitly enabled in the package and only for
+// incremental packages.
+static int CheckAbSpecificMetadata(const std::map<std::string, std::string>& metadata) {
+ // Incremental updates should match the current build.
+ auto device_pre_build = android::base::GetProperty("ro.build.version.incremental", "");
+ auto pkg_pre_build = get_value(metadata, "pre-build-incremental");
+ if (!pkg_pre_build.empty() && pkg_pre_build != device_pre_build) {
+ LOG(ERROR) << "Package is for source build " << pkg_pre_build << " but expected "
+ << device_pre_build;
+ return INSTALL_ERROR;
+ }
+
+ auto device_fingerprint = android::base::GetProperty("ro.build.fingerprint", "");
+ auto pkg_pre_build_fingerprint = get_value(metadata, "pre-build");
+ if (!pkg_pre_build_fingerprint.empty() && pkg_pre_build_fingerprint != device_fingerprint) {
+ LOG(ERROR) << "Package is for source build " << pkg_pre_build_fingerprint << " but expected "
+ << device_fingerprint;
+ return INSTALL_ERROR;
+ }
+
+<<<<<<< HEAD:install.cpp
+=======
+ // Check for downgrade version.
+ int64_t build_timestamp =
+ android::base::GetIntProperty("ro.build.date.utc", std::numeric_limits<int64_t>::max());
+ int64_t pkg_post_timestamp = 0;
+ // We allow to full update to the same version we are running, in case there
+ // is a problem with the current copy of that version.
+ auto pkg_post_timestamp_string = get_value(metadata, "post-timestamp");
+ if (pkg_post_timestamp_string.empty() ||
+ !android::base::ParseInt(pkg_post_timestamp_string, &pkg_post_timestamp) ||
+ pkg_post_timestamp < build_timestamp) {
+ if (get_value(metadata, "ota-downgrade") != "yes") {
+ LOG(ERROR) << "Update package is older than the current build, expected a build "
+ "newer than timestamp "
+ << build_timestamp << " but package has timestamp " << pkg_post_timestamp
+ << " and downgrade not allowed.";
+ return INSTALL_ERROR;
+ }
+ if (pkg_pre_build_fingerprint.empty()) {
+ LOG(ERROR) << "Downgrade package must have a pre-build version set, not allowed.";
+ return INSTALL_ERROR;
+ }
+ }
+
+>>>>>>> android-10.0.0_r25:install/install.cpp
+ return 0;
+}
+
+int CheckPackageMetadata(const std::map<std::string, std::string>& metadata, OtaType ota_type) {
+ auto package_ota_type = get_value(metadata, "ota-type");
+ auto expected_ota_type = OtaTypeToString(ota_type);
+ if (ota_type != OtaType::AB && ota_type != OtaType::BRICK) {
+ LOG(INFO) << "Skip package metadata check for ota type " << expected_ota_type;
+ return 0;
+ }
+
+ if (package_ota_type != expected_ota_type) {
+ LOG(ERROR) << "Unexpected ota package type, expects " << expected_ota_type << ", actual "
+ << package_ota_type;
+ return INSTALL_ERROR;
+ }
+
+ auto device = android::base::GetProperty("ro.product.device", "");
+ auto pkg_device = get_value(metadata, "pre-device");
+ if (pkg_device != device || pkg_device.empty()) {
+ LOG(ERROR) << "Package is for product " << pkg_device << " but expected " << device;
+ return INSTALL_ERROR;
+ }
+
+ // We allow the package to not have any serialno; and we also allow it to carry multiple serial
+ // numbers split by "|"; e.g. serialno=serialno1|serialno2|serialno3 ... We will fail the
+ // verification if the device's serialno doesn't match any of these carried numbers.
+ auto pkg_serial_no = get_value(metadata, "serialno");
+ if (!pkg_serial_no.empty()) {
+ auto device_serial_no = android::base::GetProperty("ro.serialno", "");
+ bool serial_number_match = false;
+ for (const auto& number : android::base::Split(pkg_serial_no, "|")) {
+ if (device_serial_no == android::base::Trim(number)) {
+ serial_number_match = true;
+ }
+ }
+ if (!serial_number_match) {
+ LOG(ERROR) << "Package is for serial " << pkg_serial_no;
+ return INSTALL_ERROR;
+ }
+ }
+
+ if (ota_type == OtaType::AB) {
+ return CheckAbSpecificMetadata(metadata);
+ }
+
+ return 0;
+}
+
+int SetUpAbUpdateCommands(const std::string& package, ZipArchiveHandle zip, int status_fd,
+ std::vector<std::string>* cmd) {
+ CHECK(cmd != nullptr);
+
+ // For A/B updates we extract the payload properties to a buffer and obtain the RAW payload offset
+ // in the zip file.
+ static constexpr const char* AB_OTA_PAYLOAD_PROPERTIES = "payload_properties.txt";
+ ZipString property_name(AB_OTA_PAYLOAD_PROPERTIES);
+ ZipEntry properties_entry;
+ if (FindEntry(zip, property_name, &properties_entry) != 0) {
+ LOG(ERROR) << "Failed to find " << AB_OTA_PAYLOAD_PROPERTIES;
+ return INSTALL_CORRUPT;
+ }
+ uint32_t properties_entry_length = properties_entry.uncompressed_length;
+ std::vector<uint8_t> payload_properties(properties_entry_length);
+ int32_t err =
+ ExtractToMemory(zip, &properties_entry, payload_properties.data(), properties_entry_length);
+ if (err != 0) {
+ LOG(ERROR) << "Failed to extract " << AB_OTA_PAYLOAD_PROPERTIES << ": " << ErrorCodeString(err);
+ return INSTALL_CORRUPT;
+ }
+
+ static constexpr const char* AB_OTA_PAYLOAD = "payload.bin";
+ ZipString payload_name(AB_OTA_PAYLOAD);
+ ZipEntry payload_entry;
+ if (FindEntry(zip, payload_name, &payload_entry) != 0) {
+ LOG(ERROR) << "Failed to find " << AB_OTA_PAYLOAD;
+ return INSTALL_CORRUPT;
+ }
+ long payload_offset = payload_entry.offset;
+ *cmd = {
+ "/system/bin/update_engine_sideload",
+ "--payload=file://" + package,
+ android::base::StringPrintf("--offset=%ld", payload_offset),
+ "--headers=" + std::string(payload_properties.begin(), payload_properties.end()),
+ android::base::StringPrintf("--status_fd=%d", status_fd),
+ };
+ return 0;
+}
+
+int SetUpNonAbUpdateCommands(const std::string& package, ZipArchiveHandle zip, int retry_count,
+ int status_fd, std::vector<std::string>* cmd) {
+ CHECK(cmd != nullptr);
+
+ // In non-A/B updates we extract the update binary from the package.
+ static constexpr const char* UPDATE_BINARY_NAME = "META-INF/com/google/android/update-binary";
+ ZipString binary_name(UPDATE_BINARY_NAME);
+ ZipEntry binary_entry;
+ if (FindEntry(zip, binary_name, &binary_entry) != 0) {
+ LOG(ERROR) << "Failed to find update binary " << UPDATE_BINARY_NAME;
+ return INSTALL_CORRUPT;
+ }
+
+ const std::string binary_path = Paths::Get().temporary_update_binary();
+ unlink(binary_path.c_str());
+ android::base::unique_fd fd(
+ open(binary_path.c_str(), O_CREAT | O_WRONLY | O_TRUNC | O_CLOEXEC, 0755));
+ if (fd == -1) {
+ PLOG(ERROR) << "Failed to create " << binary_path;
+ return INSTALL_ERROR;
+ }
+
+ int32_t error = ExtractEntryToFile(zip, &binary_entry, fd);
+ if (error != 0) {
+ LOG(ERROR) << "Failed to extract " << UPDATE_BINARY_NAME << ": " << ErrorCodeString(error);
+ return INSTALL_ERROR;
+ }
+
+ // When executing the update binary contained in the package, the arguments passed are:
+ // - the version number for this interface
+ // - an FD to which the program can write in order to update the progress bar.
+ // - the name of the package zip file.
+ // - an optional argument "retry" if this update is a retry of a failed update attempt.
+ *cmd = {
+ binary_path,
+ std::to_string(kRecoveryApiVersion),
+ std::to_string(status_fd),
+ package,
+ };
+ if (retry_count > 0) {
+ cmd->push_back("retry");
+ }
+ return 0;
+}
+
+static void log_max_temperature(int* max_temperature, const std::atomic<bool>& logger_finished) {
+ CHECK(max_temperature != nullptr);
+ std::mutex mtx;
+ std::unique_lock<std::mutex> lck(mtx);
+ while (!logger_finished.load() &&
+ finish_log_temperature.wait_for(lck, 20s) == std::cv_status::timeout) {
+ *max_temperature = std::max(*max_temperature, GetMaxValueFromThermalZone());
+ }
+}
+
+// If the package contains an update binary, extract it and run it.
+static int try_update_binary(const std::string& package, ZipArchiveHandle zip, bool* wipe_cache,
+ std::vector<std::string>* log_buffer, int retry_count,
+ int* max_temperature, RecoveryUI* ui) {
+ std::map<std::string, std::string> metadata;
+ if (!ReadMetadataFromPackage(zip, &metadata)) {
+ LOG(ERROR) << "Failed to parse metadata in the zip file";
+ return INSTALL_CORRUPT;
+ }
+
+ bool is_ab = android::base::GetBoolProperty("ro.build.ab_update", false);
+ // Verifies against the metadata in the package first.
+ if (int check_status = is_ab ? CheckPackageMetadata(metadata, OtaType::AB) : 0;
+ check_status != 0) {
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kUpdateBinaryCommandFailure));
+ return check_status;
+ }
+
+ ReadSourceTargetBuild(metadata, log_buffer);
+
+ // The updater in child process writes to the pipe to communicate with recovery.
+ android::base::unique_fd pipe_read, pipe_write;
+ // Explicitly disable O_CLOEXEC using 0 as the flags (last) parameter to Pipe
+ // so that the child updater process will recieve a non-closed fd.
+ if (!android::base::Pipe(&pipe_read, &pipe_write, 0)) {
+ PLOG(ERROR) << "Failed to create pipe for updater-recovery communication";
+ return INSTALL_CORRUPT;
+ }
+
+ // The updater-recovery communication protocol.
+ //
+ // progress <frac> <secs>
+ // fill up the next <frac> part of of the progress bar over <secs> seconds. If <secs> is
+ // zero, use `set_progress` commands to manually control the progress of this segment of the
+ // bar.
+ //
+ // set_progress <frac>
+ // <frac> should be between 0.0 and 1.0; sets the progress bar within the segment defined by
+ // the most recent progress command.
+ //
+ // ui_print <string>
+ // display <string> on the screen.
+ //
+ // wipe_cache
+ // a wipe of cache will be performed following a successful installation.
+ //
+ // clear_display
+ // turn off the text display.
+ //
+ // enable_reboot
+ // packages can explicitly request that they want the user to be able to reboot during
+ // installation (useful for debugging packages that don't exit).
+ //
+ // retry_update
+ // updater encounters some issue during the update. It requests a reboot to retry the same
+ // package automatically.
+ //
+ // log <string>
+ // updater requests logging the string (e.g. cause of the failure).
+ //
+
+ std::vector<std::string> args;
+ if (int update_status =
+ is_ab ? SetUpAbUpdateCommands(package, zip, pipe_write.get(), &args)
+ : SetUpNonAbUpdateCommands(package, zip, retry_count, pipe_write.get(), &args);
+ update_status != 0) {
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kUpdateBinaryCommandFailure));
+ return update_status;
+ }
+
+ pid_t pid = fork();
+ if (pid == -1) {
+ PLOG(ERROR) << "Failed to fork update binary";
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kForkUpdateBinaryFailure));
+ return INSTALL_ERROR;
+ }
+
+ if (pid == 0) {
+ umask(022);
+ pipe_read.reset();
+
+ // Convert the std::string vector to a NULL-terminated char* vector suitable for execv.
+ auto chr_args = StringVectorToNullTerminatedArray(args);
+ execv(chr_args[0], chr_args.data());
+ // We shouldn't use LOG/PLOG in the forked process, since they may cause the child process to
+ // hang. This deadlock results from an improperly copied mutex in the ui functions.
+ // (Bug: 34769056)
+ fprintf(stdout, "E:Can't run %s (%s)\n", chr_args[0], strerror(errno));
+ _exit(EXIT_FAILURE);
+ }
+ pipe_write.reset();
+
+ std::atomic<bool> logger_finished(false);
+ std::thread temperature_logger(log_max_temperature, max_temperature, std::ref(logger_finished));
+
+ *wipe_cache = false;
+ bool retry_update = false;
+
+ char buffer[1024];
+ FILE* from_child = android::base::Fdopen(std::move(pipe_read), "r");
+ while (fgets(buffer, sizeof(buffer), from_child) != nullptr) {
+ std::string line(buffer);
+ size_t space = line.find_first_of(" \n");
+ std::string command(line.substr(0, space));
+ if (command.empty()) continue;
+
+ // Get rid of the leading and trailing space and/or newline.
+ std::string args = space == std::string::npos ? "" : android::base::Trim(line.substr(space));
+
+ if (command == "progress") {
+ std::vector<std::string> tokens = android::base::Split(args, " ");
+ double fraction;
+ int seconds;
+ if (tokens.size() == 2 && android::base::ParseDouble(tokens[0].c_str(), &fraction) &&
+ android::base::ParseInt(tokens[1], &seconds)) {
+ ui->ShowProgress(fraction * (1 - VERIFICATION_PROGRESS_FRACTION), seconds);
+ } else {
+ LOG(ERROR) << "invalid \"progress\" parameters: " << line;
+ }
+ } else if (command == "set_progress") {
+ std::vector<std::string> tokens = android::base::Split(args, " ");
+ double fraction;
+ if (tokens.size() == 1 && android::base::ParseDouble(tokens[0].c_str(), &fraction)) {
+ ui->SetProgress(fraction);
+ } else {
+ LOG(ERROR) << "invalid \"set_progress\" parameters: " << line;
+ }
+ } else if (command == "ui_print") {
+ ui->PrintOnScreenOnly("%s\n", args.c_str());
+ fflush(stdout);
+ } else if (command == "wipe_cache") {
+ *wipe_cache = true;
+ } else if (command == "clear_display") {
+ ui->SetBackground(RecoveryUI::NONE);
+ } else if (command == "enable_reboot") {
+ // packages can explicitly request that they want the user
+ // to be able to reboot during installation (useful for
+ // debugging packages that don't exit).
+ ui->SetEnableReboot(true);
+ } else if (command == "retry_update") {
+ retry_update = true;
+ } else if (command == "log") {
+ if (!args.empty()) {
+ // Save the logging request from updater and write to last_install later.
+ log_buffer->push_back(args);
+ } else {
+ LOG(ERROR) << "invalid \"log\" parameters: " << line;
+ }
+ } else {
+ LOG(ERROR) << "unknown command [" << command << "]";
+ }
+ }
+ fclose(from_child);
+
+ int status;
+ waitpid(pid, &status, 0);
+
+ logger_finished.store(true);
+ finish_log_temperature.notify_one();
+ temperature_logger.join();
+
+ if (retry_update) {
+ return INSTALL_RETRY;
+ }
+ if (WIFEXITED(status)) {
+ if (WEXITSTATUS(status) != EXIT_SUCCESS) {
+ LOG(ERROR) << "Error in " << package << " (status " << WEXITSTATUS(status) << ")";
+ return INSTALL_ERROR;
+ }
+ } else if (WIFSIGNALED(status)) {
+ LOG(ERROR) << "Error in " << package << " (killed by signal " << WTERMSIG(status) << ")";
+ return INSTALL_ERROR;
+ } else {
+ LOG(FATAL) << "Invalid status code " << status;
+ }
+
+ return INSTALL_SUCCESS;
+}
+
+// Verifes the compatibility info in a Treble-compatible package. Returns true directly if the
+// entry doesn't exist. Note that the compatibility info is packed in a zip file inside the OTA
+// package.
+bool verify_package_compatibility(ZipArchiveHandle package_zip) {
+ LOG(INFO) << "Verifying package compatibility...";
+
+ static constexpr const char* COMPATIBILITY_ZIP_ENTRY = "compatibility.zip";
+ ZipString compatibility_entry_name(COMPATIBILITY_ZIP_ENTRY);
+ ZipEntry compatibility_entry;
+ if (FindEntry(package_zip, compatibility_entry_name, &compatibility_entry) != 0) {
+ LOG(INFO) << "Package doesn't contain " << COMPATIBILITY_ZIP_ENTRY << " entry";
+ return true;
+ }
+
+ std::string zip_content(compatibility_entry.uncompressed_length, '\0');
+ int32_t ret;
+ if ((ret = ExtractToMemory(package_zip, &compatibility_entry,
+ reinterpret_cast<uint8_t*>(&zip_content[0]),
+ compatibility_entry.uncompressed_length)) != 0) {
+ LOG(ERROR) << "Failed to read " << COMPATIBILITY_ZIP_ENTRY << ": " << ErrorCodeString(ret);
+ return false;
+ }
+
+ ZipArchiveHandle zip_handle;
+ ret = OpenArchiveFromMemory(static_cast<void*>(const_cast<char*>(zip_content.data())),
+ zip_content.size(), COMPATIBILITY_ZIP_ENTRY, &zip_handle);
+ if (ret != 0) {
+ LOG(ERROR) << "Failed to OpenArchiveFromMemory: " << ErrorCodeString(ret);
+ return false;
+ }
+
+ // Iterate all the entries inside COMPATIBILITY_ZIP_ENTRY and read the contents.
+ void* cookie;
+ ret = StartIteration(zip_handle, &cookie, nullptr, nullptr);
+ if (ret != 0) {
+ LOG(ERROR) << "Failed to start iterating zip entries: " << ErrorCodeString(ret);
+ CloseArchive(zip_handle);
+ return false;
+ }
+ std::unique_ptr<void, decltype(&EndIteration)> guard(cookie, EndIteration);
+
+ std::vector<std::string> compatibility_info;
+ ZipEntry info_entry;
+ ZipString info_name;
+ while (Next(cookie, &info_entry, &info_name) == 0) {
+ std::string content(info_entry.uncompressed_length, '\0');
+ int32_t ret = ExtractToMemory(zip_handle, &info_entry, reinterpret_cast<uint8_t*>(&content[0]),
+ info_entry.uncompressed_length);
+ if (ret != 0) {
+ LOG(ERROR) << "Failed to read " << info_name.name << ": " << ErrorCodeString(ret);
+ CloseArchive(zip_handle);
+ return false;
+ }
+ compatibility_info.emplace_back(std::move(content));
+ }
+ CloseArchive(zip_handle);
+
+ // VintfObjectRecovery::CheckCompatibility returns zero on success.
+ std::string err;
+ int result = android::vintf::VintfObjectRecovery::CheckCompatibility(compatibility_info, &err);
+ if (result == 0) {
+ return true;
+ }
+
+ LOG(ERROR) << "Failed to verify package compatibility (result " << result << "): " << err;
+ return false;
+}
+
+static int really_install_package(const std::string& path, bool* wipe_cache, bool needs_mount,
+ std::vector<std::string>* log_buffer, int retry_count,
+ int* max_temperature, RecoveryUI* ui) {
+ ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
+ ui->Print("Finding update package...\n");
+ // Give verification half the progress bar...
+ ui->SetProgressType(RecoveryUI::DETERMINATE);
+ ui->ShowProgress(VERIFICATION_PROGRESS_FRACTION, VERIFICATION_PROGRESS_TIME);
+ LOG(INFO) << "Update location: " << path;
+
+ // Map the update package into memory.
+ ui->Print("Opening update package...\n");
+
+ if (needs_mount) {
+ if (path[0] == '@') {
+ ensure_path_mounted(path.substr(1));
+ } else {
+ ensure_path_mounted(path);
+ }
+ }
+
+ auto package = Package::CreateMemoryPackage(
+ path, std::bind(&RecoveryUI::SetProgress, ui, std::placeholders::_1));
+ if (!package) {
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kMapFileFailure));
+ return INSTALL_CORRUPT;
+ }
+
+ // Verify package.
+ if (!verify_package(package.get(), ui)) {
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kZipVerificationFailure));
+ return INSTALL_CORRUPT;
+ }
+
+ // Try to open the package.
+ ZipArchiveHandle zip = package->GetZipArchiveHandle();
+ if (!zip) {
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kZipOpenFailure));
+ return INSTALL_CORRUPT;
+ }
+
+ // Additionally verify the compatibility of the package if it's a fresh install.
+ if (retry_count == 0 && !verify_package_compatibility(zip)) {
+ log_buffer->push_back(android::base::StringPrintf("error: %d", kPackageCompatibilityFailure));
+ return INSTALL_CORRUPT;
+ }
+
+ // Verify and install the contents of the package.
+ ui->Print("Installing update...\n");
+ if (retry_count > 0) {
+ ui->Print("Retry attempt: %d\n", retry_count);
+ }
+ ui->SetEnableReboot(false);
+ int result =
+ try_update_binary(path, zip, wipe_cache, log_buffer, retry_count, max_temperature, ui);
+ ui->SetEnableReboot(true);
+ ui->Print("\n");
+
+ return result;
+}
+
+int install_package(const std::string& path, bool should_wipe_cache, bool needs_mount,
+ int retry_count, RecoveryUI* ui) {
+ CHECK(!path.empty());
+
+ auto start = std::chrono::system_clock::now();
+
+ int start_temperature = GetMaxValueFromThermalZone();
+ int max_temperature = start_temperature;
+
+ int result;
+ std::vector<std::string> log_buffer;
+ if (setup_install_mounts() != 0) {
+ LOG(ERROR) << "failed to set up expected mounts for install; aborting";
+ result = INSTALL_ERROR;
+ } else {
+ bool updater_wipe_cache = false;
+ result = really_install_package(path, &updater_wipe_cache, needs_mount, &log_buffer,
+ retry_count, &max_temperature, ui);
+ should_wipe_cache = should_wipe_cache || updater_wipe_cache;
+ }
+
+ // Measure the time spent to apply OTA update in seconds.
+ std::chrono::duration<double> duration = std::chrono::system_clock::now() - start;
+ int time_total = static_cast<int>(duration.count());
+
+ bool has_cache = volume_for_mount_point("/cache") != nullptr;
+ // Skip logging the uncrypt_status on devices without /cache.
+ if (has_cache) {
+ static constexpr const char* UNCRYPT_STATUS = "/cache/recovery/uncrypt_status";
+ if (ensure_path_mounted(UNCRYPT_STATUS) != 0) {
+ LOG(WARNING) << "Can't mount " << UNCRYPT_STATUS;
+ } else {
+ std::string uncrypt_status;
+ if (!android::base::ReadFileToString(UNCRYPT_STATUS, &uncrypt_status)) {
+ PLOG(WARNING) << "failed to read uncrypt status";
+ } else if (!android::base::StartsWith(uncrypt_status, "uncrypt_")) {
+ LOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
+ } else {
+ log_buffer.push_back(android::base::Trim(uncrypt_status));
+ }
+ }
+ }
+
+ // The first two lines need to be the package name and install result.
+ std::vector<std::string> log_header = {
+ path,
+ result == INSTALL_SUCCESS ? "1" : "0",
+ "time_total: " + std::to_string(time_total),
+ "retry: " + std::to_string(retry_count),
+ };
+
+ int end_temperature = GetMaxValueFromThermalZone();
+ max_temperature = std::max(end_temperature, max_temperature);
+ if (start_temperature > 0) {
+ log_buffer.push_back("temperature_start: " + std::to_string(start_temperature));
+ }
+ if (end_temperature > 0) {
+ log_buffer.push_back("temperature_end: " + std::to_string(end_temperature));
+ }
+ if (max_temperature > 0) {
+ log_buffer.push_back("temperature_max: " + std::to_string(max_temperature));
+ }
+
+ std::string log_content =
+ android::base::Join(log_header, "\n") + "\n" + android::base::Join(log_buffer, "\n") + "\n";
+ const std::string& install_file = Paths::Get().temporary_install_file();
+ if (!android::base::WriteStringToFile(log_content, install_file)) {
+ PLOG(ERROR) << "failed to write " << install_file;
+ }
+
+ // Write a copy into last_log.
+ LOG(INFO) << log_content;
+
+ if (result == INSTALL_SUCCESS && should_wipe_cache) {
+ if (!WipeCache(ui, nullptr)) {
+ result = INSTALL_ERROR;
+ }
+ }
+
+ return result;
+}
+
+bool verify_package(Package* package, RecoveryUI* ui) {
+ static constexpr const char* CERTIFICATE_ZIP_FILE = "/system/etc/security/otacerts.zip";
+ std::vector<Certificate> loaded_keys = LoadKeysFromZipfile(CERTIFICATE_ZIP_FILE);
+ if (loaded_keys.empty()) {
+ LOG(ERROR) << "Failed to load keys";
+ return false;
+ }
+ LOG(INFO) << loaded_keys.size() << " key(s) loaded from " << CERTIFICATE_ZIP_FILE;
+
+ // Verify package.
+ ui->Print("Verifying update package...\n");
+ auto t0 = std::chrono::system_clock::now();
+ int err = verify_file(package, loaded_keys);
+ std::chrono::duration<double> duration = std::chrono::system_clock::now() - t0;
+ ui->Print("Update package verification took %.1f s (result %d).\n", duration.count(), err);
+ if (err != VERIFY_SUCCESS) {
+ LOG(ERROR) << "Signature verification failed";
+ LOG(ERROR) << "error: " << kZipVerificationFailure;
+ return false;
+ }
+ return true;
+}