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142 lines
4.2 KiB
142 lines
4.2 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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// HUANGLONG begin
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#include <fcntl.h>
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// HUANGLONG end
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#include <string>
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#include <android-base/logging.h>
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#include <android-base/parseint.h>
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#include <openssl/crypto.h>
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#include <selinux/android.h>
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#include <selinux/label.h>
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#include <selinux/selinux.h>
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#include "edify/expr.h"
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#include "updater/blockimg.h"
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#include "updater/dynamic_partitions.h"
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#include "updater/install.h"
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#include "updater/updater.h"
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#include "updater/updater_runtime.h"
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// Generated by the makefile, this function defines the
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// RegisterDeviceExtensions() function, which calls all the
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// registration functions for device-specific extensions.
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#include "register.inc"
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static void UpdaterLogger(android::base::LogId /* id */, android::base::LogSeverity /* severity */,
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const char* /* tag */, const char* /* file */, unsigned int /* line */,
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const char* message) {
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fprintf(stdout, "%s\n", message);
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}
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// HUANGLONG begin
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// recovery, Initialize kernel logs
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void InitKernelLogging(char* argv[])
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{
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// Make stdin/stdout/stderr all point to /dev/null.
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int fd = open("/sys/fs/selinux/null", O_RDWR);
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if (fd == -1) {
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int savedErrno = errno;
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android::base::InitLogging(argv, &android::base::KernelLogger);
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errno = savedErrno;
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PLOG(FATAL) << "Couldn't open /sys/fs/selinux/null";
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}
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dup2(fd, 0);
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dup2(fd, 1);
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dup2(fd, 2);
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if (fd > 2) close(fd);
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android::base::InitLogging(argv, &android::base::KernelLogger);
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}
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// HUANGLONG end
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int main(int argc, char** argv) {
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// Various things log information to stdout or stderr more or less
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// at random (though we've tried to standardize on stdout). The
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// log file makes more sense if buffering is turned off so things
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// appear in the right order.
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setbuf(stdout, nullptr);
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setbuf(stderr, nullptr);
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// We don't have logcat yet under recovery. Update logs will always be written to stdout
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// (which is redirected to recovery.log).
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android::base::InitLogging(argv, &UpdaterLogger);
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// HUANGLONG begin
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InitKernelLogging(argv);
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LOG(ERROR) << "InitLogging --------------";
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// HUANGLONG end
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// Run the libcrypto KAT(known answer tests) based self tests.
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if (BORINGSSL_self_test() != 1) {
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LOG(ERROR) << "Failed to run the boringssl self tests";
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return EXIT_FAILURE;
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}
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if (argc != 4 && argc != 5) {
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LOG(ERROR) << "unexpected number of arguments: " << argc;
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return EXIT_FAILURE;
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}
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char* version = argv[1];
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if ((version[0] != '1' && version[0] != '2' && version[0] != '3') || version[1] != '\0') {
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// We support version 1, 2, or 3.
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LOG(ERROR) << "wrong updater binary API; expected 1, 2, or 3; got " << argv[1];
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return EXIT_FAILURE;
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}
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int fd;
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if (!android::base::ParseInt(argv[2], &fd)) {
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LOG(ERROR) << "Failed to parse fd in " << argv[2];
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return EXIT_FAILURE;
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}
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std::string package_name = argv[3];
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bool is_retry = false;
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if (argc == 5) {
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if (strcmp(argv[4], "retry") == 0) {
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is_retry = true;
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} else {
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LOG(ERROR) << "unexpected argument: " << argv[4];
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return EXIT_FAILURE;
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}
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}
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// Configure edify's functions.
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RegisterBuiltins();
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RegisterInstallFunctions();
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RegisterBlockImageFunctions();
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RegisterDynamicPartitionsFunctions();
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RegisterDeviceExtensions();
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auto sehandle = selinux_android_file_context_handle();
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selinux_android_set_sehandle(sehandle);
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Updater updater(std::make_unique<UpdaterRuntime>(sehandle));
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if (!updater.Init(fd, package_name, is_retry)) {
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return EXIT_FAILURE;
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}
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if (!updater.RunUpdate()) {
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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} |