| // |
| // Copyright (C) 2010 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 <errno.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include <base/logging.h> |
| #include <base/strings/string_number_conversions.h> |
| #include <base/strings/string_split.h> |
| #include <brillo/flag_helper.h> |
| #include <brillo/key_value_store.h> |
| |
| #include "update_engine/common/prefs.h" |
| #include "update_engine/common/terminator.h" |
| #include "update_engine/common/utils.h" |
| #include "update_engine/payload_consumer/delta_performer.h" |
| #include "update_engine/payload_consumer/payload_constants.h" |
| #include "update_engine/payload_generator/delta_diff_generator.h" |
| #include "update_engine/payload_generator/delta_diff_utils.h" |
| #include "update_engine/payload_generator/payload_generation_config.h" |
| #include "update_engine/payload_generator/payload_signer.h" |
| #include "update_engine/payload_generator/xz.h" |
| #include "update_engine/update_metadata.pb.h" |
| |
| // This file contains a simple program that takes an old path, a new path, |
| // and an output file as arguments and the path to an output file and |
| // generates a delta that can be sent to Chrome OS clients. |
| |
| using std::set; |
| using std::string; |
| using std::vector; |
| |
| namespace chromeos_update_engine { |
| |
| namespace { |
| |
| void ParseSignatureSizes(const string& signature_sizes_flag, |
| vector<int>* signature_sizes) { |
| signature_sizes->clear(); |
| vector<string> split_strings = |
| base::SplitString(signature_sizes_flag, ":", base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_ALL); |
| for (const string& str : split_strings) { |
| int size = 0; |
| bool parsing_successful = base::StringToInt(str, &size); |
| LOG_IF(FATAL, !parsing_successful) |
| << "Invalid signature size: " << str; |
| |
| LOG_IF(FATAL, size != (2048 / 8)) << |
| "Only signature sizes of 256 bytes are supported."; |
| |
| signature_sizes->push_back(size); |
| } |
| } |
| |
| bool ParseImageInfo(const string& channel, |
| const string& board, |
| const string& version, |
| const string& key, |
| const string& build_channel, |
| const string& build_version, |
| ImageInfo* image_info) { |
| // All of these arguments should be present or missing. |
| bool empty = channel.empty(); |
| |
| CHECK_EQ(channel.empty(), empty); |
| CHECK_EQ(board.empty(), empty); |
| CHECK_EQ(version.empty(), empty); |
| CHECK_EQ(key.empty(), empty); |
| |
| if (empty) |
| return false; |
| |
| image_info->set_channel(channel); |
| image_info->set_board(board); |
| image_info->set_version(version); |
| image_info->set_key(key); |
| |
| image_info->set_build_channel( |
| build_channel.empty() ? channel : build_channel); |
| |
| image_info->set_build_version( |
| build_version.empty() ? version : build_version); |
| |
| return true; |
| } |
| |
| void CalculateHashForSigning(const vector<int> &sizes, |
| const string& out_hash_file, |
| const string& out_metadata_hash_file, |
| const string& in_file) { |
| LOG(INFO) << "Calculating hash for signing."; |
| LOG_IF(FATAL, in_file.empty()) |
| << "Must pass --in_file to calculate hash for signing."; |
| LOG_IF(FATAL, out_hash_file.empty()) |
| << "Must pass --out_hash_file to calculate hash for signing."; |
| |
| brillo::Blob payload_hash, metadata_hash; |
| CHECK(PayloadSigner::HashPayloadForSigning(in_file, sizes, &payload_hash, |
| &metadata_hash)); |
| CHECK(utils::WriteFile(out_hash_file.c_str(), payload_hash.data(), |
| payload_hash.size())); |
| if (!out_metadata_hash_file.empty()) |
| CHECK(utils::WriteFile(out_metadata_hash_file.c_str(), metadata_hash.data(), |
| metadata_hash.size())); |
| |
| LOG(INFO) << "Done calculating hash for signing."; |
| } |
| |
| void SignatureFileFlagToBlobs(const string& signature_file_flag, |
| vector<brillo::Blob>* signatures) { |
| vector<string> signature_files = |
| base::SplitString(signature_file_flag, ":", base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_ALL); |
| for (const string& signature_file : signature_files) { |
| brillo::Blob signature; |
| CHECK(utils::ReadFile(signature_file, &signature)); |
| signatures->push_back(signature); |
| } |
| } |
| |
| void SignPayload(const string& in_file, |
| const string& out_file, |
| const string& payload_signature_file, |
| const string& metadata_signature_file, |
| const string& out_metadata_size_file) { |
| LOG(INFO) << "Signing payload."; |
| LOG_IF(FATAL, in_file.empty()) |
| << "Must pass --in_file to sign payload."; |
| LOG_IF(FATAL, out_file.empty()) |
| << "Must pass --out_file to sign payload."; |
| LOG_IF(FATAL, payload_signature_file.empty()) |
| << "Must pass --signature_file to sign payload."; |
| vector<brillo::Blob> signatures, metadata_signatures; |
| SignatureFileFlagToBlobs(payload_signature_file, &signatures); |
| SignatureFileFlagToBlobs(metadata_signature_file, &metadata_signatures); |
| uint64_t final_metadata_size; |
| CHECK(PayloadSigner::AddSignatureToPayload(in_file, signatures, |
| metadata_signatures, out_file, &final_metadata_size)); |
| LOG(INFO) << "Done signing payload. Final metadata size = " |
| << final_metadata_size; |
| if (!out_metadata_size_file.empty()) { |
| string metadata_size_string = std::to_string(final_metadata_size); |
| CHECK(utils::WriteFile(out_metadata_size_file.c_str(), |
| metadata_size_string.data(), |
| metadata_size_string.size())); |
| } |
| } |
| |
| void VerifySignedPayload(const string& in_file, |
| const string& public_key) { |
| LOG(INFO) << "Verifying signed payload."; |
| LOG_IF(FATAL, in_file.empty()) |
| << "Must pass --in_file to verify signed payload."; |
| LOG_IF(FATAL, public_key.empty()) |
| << "Must pass --public_key to verify signed payload."; |
| CHECK(PayloadSigner::VerifySignedPayload(in_file, public_key)); |
| LOG(INFO) << "Done verifying signed payload."; |
| } |
| |
| // TODO(deymo): This function is likely broken for deltas minor version 2 or |
| // newer. Move this function to a new file and make the delta_performer |
| // integration tests use this instead. |
| void ApplyDelta(const string& in_file, |
| const string& old_kernel, |
| const string& old_rootfs, |
| const string& prefs_dir) { |
| LOG(INFO) << "Applying delta."; |
| LOG_IF(FATAL, old_rootfs.empty()) |
| << "Must pass --old_image to apply delta."; |
| Prefs prefs; |
| InstallPlan install_plan; |
| LOG(INFO) << "Setting up preferences under: " << prefs_dir; |
| LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir))) |
| << "Failed to initialize preferences."; |
| // Get original checksums |
| LOG(INFO) << "Calculating original checksums"; |
| ImageConfig old_image; |
| old_image.partitions.emplace_back(kLegacyPartitionNameRoot); |
| old_image.partitions.back().path = old_rootfs; |
| old_image.partitions.emplace_back(kLegacyPartitionNameKernel); |
| old_image.partitions.back().path = old_kernel; |
| CHECK(old_image.LoadImageSize()); |
| for (const auto& old_part : old_image.partitions) { |
| PartitionInfo part_info; |
| CHECK(diff_utils::InitializePartitionInfo(old_part, &part_info)); |
| InstallPlan::Partition part; |
| part.name = old_part.name; |
| part.source_hash.assign(part_info.hash().begin(), |
| part_info.hash().end()); |
| part.source_path = old_part.path; |
| // Apply the delta in-place to the old_part. |
| part.target_path = old_part.path; |
| install_plan.partitions.push_back(part); |
| } |
| |
| DeltaPerformer performer(&prefs, nullptr, nullptr, nullptr, &install_plan); |
| brillo::Blob buf(1024 * 1024); |
| int fd = open(in_file.c_str(), O_RDONLY, 0); |
| CHECK_GE(fd, 0); |
| ScopedFdCloser fd_closer(&fd); |
| for (off_t offset = 0;; offset += buf.size()) { |
| ssize_t bytes_read; |
| CHECK(utils::PReadAll(fd, buf.data(), buf.size(), offset, &bytes_read)); |
| if (bytes_read == 0) |
| break; |
| CHECK_EQ(performer.Write(buf.data(), bytes_read), bytes_read); |
| } |
| CHECK_EQ(performer.Close(), 0); |
| DeltaPerformer::ResetUpdateProgress(&prefs, false); |
| LOG(INFO) << "Done applying delta."; |
| } |
| |
| int ExtractProperties(const string& payload_path, const string& props_file) { |
| brillo::KeyValueStore properties; |
| TEST_AND_RETURN_FALSE( |
| PayloadSigner::ExtractPayloadProperties(payload_path, &properties)); |
| if (props_file == "-") { |
| printf("%s", properties.SaveToString().c_str()); |
| } else { |
| properties.Save(base::FilePath(props_file)); |
| LOG(INFO) << "Generated properties file at " << props_file; |
| } |
| return true; |
| } |
| |
| int Main(int argc, char** argv) { |
| DEFINE_string(old_image, "", "Path to the old rootfs"); |
| DEFINE_string(new_image, "", "Path to the new rootfs"); |
| DEFINE_string(old_kernel, "", "Path to the old kernel partition image"); |
| DEFINE_string(new_kernel, "", "Path to the new kernel partition image"); |
| DEFINE_string(old_partitions, "", |
| "Path to the old partitions. To pass multiple partitions, use " |
| "a single argument with a colon between paths, e.g. " |
| "/path/to/part:/path/to/part2::/path/to/last_part . Path can " |
| "be empty, but it has to match the order of partition_names."); |
| DEFINE_string(new_partitions, "", |
| "Path to the new partitions. To pass multiple partitions, use " |
| "a single argument with a colon between paths, e.g. " |
| "/path/to/part:/path/to/part2:/path/to/last_part . Path has " |
| "to match the order of partition_names."); |
| DEFINE_string(partition_names, |
| string(kLegacyPartitionNameRoot) + ":" + |
| kLegacyPartitionNameKernel, |
| "Names of the partitions. To pass multiple names, use a single " |
| "argument with a colon between names, e.g. " |
| "name:name2:name3:last_name . Name can not be empty, and it " |
| "has to match the order of partitions."); |
| DEFINE_string(in_file, "", |
| "Path to input delta payload file used to hash/sign payloads " |
| "and apply delta over old_image (for debugging)"); |
| DEFINE_string(out_file, "", "Path to output delta payload file"); |
| DEFINE_string(out_hash_file, "", "Path to output hash file"); |
| DEFINE_string(out_metadata_hash_file, "", |
| "Path to output metadata hash file"); |
| DEFINE_string(out_metadata_size_file, "", |
| "Path to output metadata size file"); |
| DEFINE_string(private_key, "", "Path to private key in .pem format"); |
| DEFINE_string(public_key, "", "Path to public key in .pem format"); |
| DEFINE_int32(public_key_version, -1, |
| "DEPRECATED. Key-check version # of client"); |
| DEFINE_string(prefs_dir, "/tmp/update_engine_prefs", |
| "Preferences directory, used with apply_delta"); |
| DEFINE_string(signature_size, "", |
| "Raw signature size used for hash calculation. " |
| "You may pass in multiple sizes by colon separating them. E.g. " |
| "2048:2048:4096 will assume 3 signatures, the first two with " |
| "2048 size and the last 4096."); |
| DEFINE_string(signature_file, "", |
| "Raw signature file to sign payload with. To pass multiple " |
| "signatures, use a single argument with a colon between paths, " |
| "e.g. /path/to/sig:/path/to/next:/path/to/last_sig . Each " |
| "signature will be assigned a client version, starting from " |
| "kSignatureOriginalVersion."); |
| DEFINE_string(metadata_signature_file, "", |
| "Raw signature file with the signature of the metadata hash. " |
| "To pass multiple signatures, use a single argument with a " |
| "colon between paths, " |
| "e.g. /path/to/sig:/path/to/next:/path/to/last_sig ."); |
| DEFINE_int32(chunk_size, 200 * 1024 * 1024, |
| "Payload chunk size (-1 for whole files)"); |
| DEFINE_uint64(rootfs_partition_size, |
| chromeos_update_engine::kRootFSPartitionSize, |
| "RootFS partition size for the image once installed"); |
| DEFINE_uint64(major_version, 1, |
| "The major version of the payload being generated."); |
| DEFINE_int32(minor_version, -1, |
| "The minor version of the payload being generated " |
| "(-1 means autodetect)."); |
| DEFINE_string(properties_file, "", |
| "If passed, dumps the payload properties of the payload passed " |
| "in --in_file and exits."); |
| DEFINE_string(zlib_fingerprint, "", |
| "The fingerprint of zlib in the source image in hash string " |
| "format, used to check imgdiff compatibility."); |
| |
| DEFINE_string(old_channel, "", |
| "The channel for the old image. 'dev-channel', 'npo-channel', " |
| "etc. Ignored, except during delta generation."); |
| DEFINE_string(old_board, "", |
| "The board for the old image. 'x86-mario', 'lumpy', " |
| "etc. Ignored, except during delta generation."); |
| DEFINE_string(old_version, "", |
| "The build version of the old image. 1.2.3, etc."); |
| DEFINE_string(old_key, "", |
| "The key used to sign the old image. 'premp', 'mp', 'mp-v3'," |
| " etc"); |
| DEFINE_string(old_build_channel, "", |
| "The channel for the build of the old image. 'dev-channel', " |
| "etc, but will never contain special channels such as " |
| "'npo-channel'. Ignored, except during delta generation."); |
| DEFINE_string(old_build_version, "", |
| "The version of the build containing the old image."); |
| |
| DEFINE_string(new_channel, "", |
| "The channel for the new image. 'dev-channel', 'npo-channel', " |
| "etc. Ignored, except during delta generation."); |
| DEFINE_string(new_board, "", |
| "The board for the new image. 'x86-mario', 'lumpy', " |
| "etc. Ignored, except during delta generation."); |
| DEFINE_string(new_version, "", |
| "The build version of the new image. 1.2.3, etc."); |
| DEFINE_string(new_key, "", |
| "The key used to sign the new image. 'premp', 'mp', 'mp-v3'," |
| " etc"); |
| DEFINE_string(new_build_channel, "", |
| "The channel for the build of the new image. 'dev-channel', " |
| "etc, but will never contain special channels such as " |
| "'npo-channel'. Ignored, except during delta generation."); |
| DEFINE_string(new_build_version, "", |
| "The version of the build containing the new image."); |
| DEFINE_string(new_postinstall_config_file, "", |
| "A config file specifying postinstall related metadata. " |
| "Only allowed in major version 2 or newer."); |
| |
| brillo::FlagHelper::Init(argc, argv, |
| "Generates a payload to provide to ChromeOS' update_engine.\n\n" |
| "This tool can create full payloads and also delta payloads if the src\n" |
| "image is provided. It also provides debugging options to apply, sign\n" |
| "and verify payloads."); |
| Terminator::Init(); |
| |
| logging::LoggingSettings log_settings; |
| log_settings.log_file = "delta_generator.log"; |
| log_settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG; |
| log_settings.lock_log = logging::LOCK_LOG_FILE; |
| log_settings.delete_old = logging::APPEND_TO_OLD_LOG_FILE; |
| |
| logging::InitLogging(log_settings); |
| |
| // Initialize the Xz compressor. |
| XzCompressInit(); |
| |
| vector<int> signature_sizes; |
| ParseSignatureSizes(FLAGS_signature_size, &signature_sizes); |
| |
| if (!FLAGS_out_hash_file.empty() || !FLAGS_out_metadata_hash_file.empty()) { |
| CHECK(FLAGS_out_metadata_size_file.empty()); |
| CalculateHashForSigning(signature_sizes, FLAGS_out_hash_file, |
| FLAGS_out_metadata_hash_file, FLAGS_in_file); |
| return 0; |
| } |
| if (!FLAGS_signature_file.empty()) { |
| SignPayload(FLAGS_in_file, FLAGS_out_file, FLAGS_signature_file, |
| FLAGS_metadata_signature_file, FLAGS_out_metadata_size_file); |
| return 0; |
| } |
| if (!FLAGS_public_key.empty()) { |
| LOG_IF(WARNING, FLAGS_public_key_version != -1) |
| << "--public_key_version is deprecated and ignored."; |
| VerifySignedPayload(FLAGS_in_file, FLAGS_public_key); |
| return 0; |
| } |
| if (!FLAGS_properties_file.empty()) { |
| return ExtractProperties(FLAGS_in_file, FLAGS_properties_file) ? 0 : 1; |
| } |
| if (!FLAGS_in_file.empty()) { |
| ApplyDelta(FLAGS_in_file, FLAGS_old_kernel, FLAGS_old_image, |
| FLAGS_prefs_dir); |
| return 0; |
| } |
| |
| // A payload generation was requested. Convert the flags to a |
| // PayloadGenerationConfig. |
| PayloadGenerationConfig payload_config; |
| vector<string> partition_names, old_partitions, new_partitions; |
| |
| partition_names = |
| base::SplitString(FLAGS_partition_names, ":", base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_ALL); |
| CHECK(!partition_names.empty()); |
| if (FLAGS_major_version == kChromeOSMajorPayloadVersion || |
| FLAGS_new_partitions.empty()) { |
| LOG_IF(FATAL, partition_names.size() != 2) |
| << "To support more than 2 partitions, please use the " |
| << "--new_partitions flag and major version 2."; |
| LOG_IF(FATAL, partition_names[0] != kLegacyPartitionNameRoot || |
| partition_names[1] != kLegacyPartitionNameKernel) |
| << "To support non-default partition name, please use the " |
| << "--new_partitions flag and major version 2."; |
| } |
| |
| if (!FLAGS_new_partitions.empty()) { |
| LOG_IF(FATAL, !FLAGS_new_image.empty() || !FLAGS_new_kernel.empty()) |
| << "--new_image and --new_kernel are deprecated, please use " |
| << "--new_partitions for all partitions."; |
| new_partitions = |
| base::SplitString(FLAGS_new_partitions, ":", base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_ALL); |
| CHECK(partition_names.size() == new_partitions.size()); |
| |
| payload_config.is_delta = !FLAGS_old_partitions.empty(); |
| LOG_IF(FATAL, !FLAGS_old_image.empty() || !FLAGS_old_kernel.empty()) |
| << "--old_image and --old_kernel are deprecated, please use " |
| << "--old_partitions if you are using --new_partitions."; |
| } else { |
| new_partitions = {FLAGS_new_image, FLAGS_new_kernel}; |
| LOG(WARNING) << "--new_partitions is empty, using deprecated --new_image " |
| << "and --new_kernel flags."; |
| |
| payload_config.is_delta = !FLAGS_old_image.empty() || |
| !FLAGS_old_kernel.empty(); |
| LOG_IF(FATAL, !FLAGS_old_partitions.empty()) |
| << "Please use --new_partitions if you are using --old_partitions."; |
| } |
| for (size_t i = 0; i < partition_names.size(); i++) { |
| LOG_IF(FATAL, partition_names[i].empty()) |
| << "Partition name can't be empty, see --partition_names."; |
| payload_config.target.partitions.emplace_back(partition_names[i]); |
| payload_config.target.partitions.back().path = new_partitions[i]; |
| } |
| |
| if (payload_config.is_delta) { |
| if (!FLAGS_old_partitions.empty()) { |
| old_partitions = |
| base::SplitString(FLAGS_old_partitions, ":", base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_ALL); |
| CHECK(old_partitions.size() == new_partitions.size()); |
| } else { |
| old_partitions = {FLAGS_old_image, FLAGS_old_kernel}; |
| LOG(WARNING) << "--old_partitions is empty, using deprecated --old_image " |
| << "and --old_kernel flags."; |
| } |
| for (size_t i = 0; i < partition_names.size(); i++) { |
| payload_config.source.partitions.emplace_back(partition_names[i]); |
| payload_config.source.partitions.back().path = old_partitions[i]; |
| } |
| } |
| |
| if (!FLAGS_new_postinstall_config_file.empty()) { |
| LOG_IF(FATAL, FLAGS_major_version == kChromeOSMajorPayloadVersion) |
| << "Postinstall config is only allowed in major version 2 or newer."; |
| brillo::KeyValueStore store; |
| CHECK(store.Load(base::FilePath(FLAGS_new_postinstall_config_file))); |
| CHECK(payload_config.target.LoadPostInstallConfig(store)); |
| } |
| |
| // Use the default soft_chunk_size defined in the config. |
| payload_config.hard_chunk_size = FLAGS_chunk_size; |
| payload_config.block_size = kBlockSize; |
| |
| // The partition size is never passed to the delta_generator, so we |
| // need to detect those from the provided files. |
| if (payload_config.is_delta) { |
| CHECK(payload_config.source.LoadImageSize()); |
| } |
| CHECK(payload_config.target.LoadImageSize()); |
| |
| CHECK(!FLAGS_out_file.empty()); |
| |
| // Ignore failures. These are optional arguments. |
| ParseImageInfo(FLAGS_new_channel, |
| FLAGS_new_board, |
| FLAGS_new_version, |
| FLAGS_new_key, |
| FLAGS_new_build_channel, |
| FLAGS_new_build_version, |
| &payload_config.target.image_info); |
| |
| // Ignore failures. These are optional arguments. |
| ParseImageInfo(FLAGS_old_channel, |
| FLAGS_old_board, |
| FLAGS_old_version, |
| FLAGS_old_key, |
| FLAGS_old_build_channel, |
| FLAGS_old_build_version, |
| &payload_config.source.image_info); |
| |
| payload_config.rootfs_partition_size = FLAGS_rootfs_partition_size; |
| |
| if (payload_config.is_delta) { |
| // Avoid opening the filesystem interface for full payloads. |
| for (PartitionConfig& part : payload_config.target.partitions) |
| CHECK(part.OpenFilesystem()); |
| for (PartitionConfig& part : payload_config.source.partitions) |
| CHECK(part.OpenFilesystem()); |
| } |
| |
| payload_config.version.major = FLAGS_major_version; |
| LOG(INFO) << "Using provided major_version=" << FLAGS_major_version; |
| |
| if (FLAGS_minor_version == -1) { |
| // Autodetect minor_version by looking at the update_engine.conf in the old |
| // image. |
| if (payload_config.is_delta) { |
| payload_config.version.minor = kInPlaceMinorPayloadVersion; |
| brillo::KeyValueStore store; |
| uint32_t minor_version; |
| for (const PartitionConfig& part : payload_config.source.partitions) { |
| if (part.fs_interface && part.fs_interface->LoadSettings(&store) && |
| utils::GetMinorVersion(store, &minor_version)) { |
| payload_config.version.minor = minor_version; |
| break; |
| } |
| } |
| } else { |
| payload_config.version.minor = kFullPayloadMinorVersion; |
| } |
| LOG(INFO) << "Auto-detected minor_version=" << payload_config.version.minor; |
| } else { |
| payload_config.version.minor = FLAGS_minor_version; |
| LOG(INFO) << "Using provided minor_version=" << FLAGS_minor_version; |
| } |
| |
| if (!FLAGS_zlib_fingerprint.empty()) { |
| if (utils::IsZlibCompatible(FLAGS_zlib_fingerprint)) { |
| payload_config.version.imgdiff_allowed = true; |
| } else { |
| LOG(INFO) << "IMGDIFF operation disabled due to fingerprint mismatch."; |
| } |
| } |
| |
| if (payload_config.is_delta) { |
| LOG(INFO) << "Generating delta update"; |
| } else { |
| LOG(INFO) << "Generating full update"; |
| } |
| |
| // From this point, all the options have been parsed. |
| if (!payload_config.Validate()) { |
| LOG(ERROR) << "Invalid options passed. See errors above."; |
| return 1; |
| } |
| |
| uint64_t metadata_size; |
| if (!GenerateUpdatePayloadFile(payload_config, |
| FLAGS_out_file, |
| FLAGS_private_key, |
| &metadata_size)) { |
| return 1; |
| } |
| if (!FLAGS_out_metadata_size_file.empty()) { |
| string metadata_size_string = std::to_string(metadata_size); |
| CHECK(utils::WriteFile(FLAGS_out_metadata_size_file.c_str(), |
| metadata_size_string.data(), |
| metadata_size_string.size())); |
| } |
| return 0; |
| } |
| |
| } // namespace |
| |
| } // namespace chromeos_update_engine |
| |
| int main(int argc, char** argv) { |
| return chromeos_update_engine::Main(argc, argv); |
| } |
