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Diffstat (limited to 'updater/updater_main.cpp')
| -rw-r--r-- | updater/updater_main.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/updater/updater_main.cpp b/updater/updater_main.cpp new file mode 100644 index 000000000..dd22c137d --- /dev/null +++ b/updater/updater_main.cpp @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2019 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 <stdio.h> +#include <string.h> +#include <unistd.h> + +#include <string> + +#include <android-base/logging.h> +#include <android-base/parseint.h> +#include <selinux/android.h> +#include <selinux/label.h> +#include <selinux/selinux.h> + +#include "edify/expr.h" +#include "updater/blockimg.h" +#include "updater/dynamic_partitions.h" +#include "updater/install.h" +#include "updater/updater.h" + +// Generated by the makefile, this function defines the +// RegisterDeviceExtensions() function, which calls all the +// registration functions for device-specific extensions. +#include "register.inc" + +static void UpdaterLogger(android::base::LogId /* id */, android::base::LogSeverity /* severity */, + const char* /* tag */, const char* /* file */, unsigned int /* line */, + const char* message) { + fprintf(stdout, "%s\n", message); +} + +int main(int argc, char** argv) { + // Various things log information to stdout or stderr more or less + // at random (though we've tried to standardize on stdout). The + // log file makes more sense if buffering is turned off so things + // appear in the right order. + setbuf(stdout, nullptr); + setbuf(stderr, nullptr); + + // We don't have logcat yet under recovery. Update logs will always be written to stdout + // (which is redirected to recovery.log). + android::base::InitLogging(argv, &UpdaterLogger); + + if (argc != 4 && argc != 5) { + LOG(ERROR) << "unexpected number of arguments: " << argc; + return 1; + } + + char* version = argv[1]; + if ((version[0] != '1' && version[0] != '2' && version[0] != '3') || version[1] != '\0') { + // We support version 1, 2, or 3. + LOG(ERROR) << "wrong updater binary API; expected 1, 2, or 3; got " << argv[1]; + return 1; + } + + int fd; + if (!android::base::ParseInt(argv[2], &fd)) { + LOG(ERROR) << "Failed to parse fd in " << argv[2]; + return 1; + } + + std::string package_name = argv[3]; + + bool is_retry = false; + if (argc == 5) { + if (strcmp(argv[4], "retry") == 0) { + is_retry = true; + } else { + LOG(ERROR) << "unexpected argument: " << argv[4]; + return 1; + } + } + + // Configure edify's functions. + RegisterBuiltins(); + RegisterInstallFunctions(); + RegisterBlockImageFunctions(); + RegisterDynamicPartitionsFunctions(); + RegisterDeviceExtensions(); + + auto sehandle = selinux_android_file_context_handle(); + selinux_android_set_sehandle(sehandle); + + Updater updater; + if (!updater.Init(fd, package_name, is_retry, sehandle)) { + return 1; + } + + if (!updater.RunUpdate()) { + return 1; + } + + return 0; +}
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