Merge "Remove fsck_unshare_blocks." (79ce1d34) · Commits · e / os / android_bootable_recovery

Android.bp

+0 −1

Original line number	Diff line number	Diff line
		@@ -90,7 +90,6 @@ cc_library_static {
		],

		srcs: [
		"fsck_unshare_blocks.cpp",
		"recovery.cpp",
		],

fsck_unshare_blocks.cpp

deleted100644 → 0

+0 −151

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 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 "fsck_unshare_blocks.h"

		#include <errno.h>
		#include <fcntl.h>
		#include <spawn.h>
		#include <string.h>
		#include <sys/mount.h>
		#include <sys/stat.h>
		#include <sys/types.h>
		#include <sys/wait.h>
		#include <unistd.h>

		#include <algorithm>
		#include <memory>
		#include <string>
		#include <vector>

		#include <android-base/logging.h>
		#include <android-base/properties.h>
		#include <android-base/unique_fd.h>
		#include <fs_mgr/roots.h>

		#include "recovery_utils/roots.h"

		static constexpr const char* SYSTEM_E2FSCK_BIN = "/system/bin/e2fsck_static";
		static constexpr const char* TMP_E2FSCK_BIN = "/tmp/e2fsck.bin";

		static bool copy_file(const char* source, const char* dest) {
		android::base::unique_fd source_fd(open(source, O_RDONLY));
		if (source_fd < 0) {
		PLOG(ERROR) << "open %s failed" << source;
		return false;
		}

		android::base::unique_fd dest_fd(open(dest, O_CREAT \| O_WRONLY, S_IRWXU));
		if (dest_fd < 0) {
		PLOG(ERROR) << "open %s failed" << dest;
		return false;
		}

		for (;;) {
		char buf[4096];
		ssize_t rv = read(source_fd, buf, sizeof(buf));
		if (rv < 0) {
		PLOG(ERROR) << "read failed";
		return false;
		}
		if (rv == 0) {
		break;
		}
		if (write(dest_fd, buf, rv) != rv) {
		PLOG(ERROR) << "write failed";
		return false;
		}
		}
		return true;
		}

		static bool run_e2fsck(const std::string& partition) {
		Volume* volume = volume_for_mount_point(partition);
		if (!volume) {
		LOG(INFO) << "No fstab entry for " << partition << ", skipping.";
		return true;
		}

		LOG(INFO) << "Running e2fsck on device " << volume->blk_device;

		std::vector<std::string> args = { TMP_E2FSCK_BIN, "-p", "-E", "unshare_blocks",
		volume->blk_device };
		std::vector<char*> argv(args.size());
		std::transform(args.cbegin(), args.cend(), argv.begin(),
		[](const std::string& arg) { return const_cast<char*>(arg.c_str()); });
		argv.push_back(nullptr);

		pid_t child;
		char* env[] = { nullptr };
		if (posix_spawn(&child, argv[0], nullptr, nullptr, argv.data(), env)) {
		PLOG(ERROR) << "posix_spawn failed";
		return false;
		}

		int status = 0;
		int ret = TEMP_FAILURE_RETRY(waitpid(child, &status, 0));
		if (ret < 0) {
		PLOG(ERROR) << "waitpid failed";
		return false;
		}
		if (!WIFEXITED(status)) {
		LOG(ERROR) << "e2fsck exited abnormally: " << status;
		return false;
		}
		int return_code = WEXITSTATUS(status);
		if (return_code >= 8) {
		LOG(ERROR) << "e2fsck could not unshare blocks: " << return_code;
		return false;
		}

		LOG(INFO) << "Successfully unshared blocks on " << partition;
		return true;
		}

		bool do_fsck_unshare_blocks() {
		// List of partitions we will try to e2fsck -E unshare_blocks.
		std::vector<std::string> partitions = { "/odm", "/oem", "/product", "/vendor" };

		// Temporarily mount system so we can copy e2fsck_static.
		auto system_root = android::fs_mgr::GetSystemRoot();
		bool mounted = ensure_path_mounted_at(system_root, "/mnt/system") != -1;
		partitions.push_back(system_root);

		if (!mounted) {
		LOG(ERROR) << "Failed to mount system image.";
		return false;
		}
		if (!copy_file(SYSTEM_E2FSCK_BIN, TMP_E2FSCK_BIN)) {
		LOG(ERROR) << "Could not copy e2fsck to /tmp.";
		return false;
		}
		if (umount("/mnt/system") < 0) {
		PLOG(ERROR) << "umount failed";
		return false;
		}

		bool ok = true;
		for (const auto& partition : partitions) {
		ok &= run_e2fsck(partition);
		}

		if (ok) {
		LOG(INFO) << "Finished running e2fsck.";
		} else {
		LOG(ERROR) << "Finished running e2fsck, but not all partitions succceeded.";
		}
		return ok;
		}

fsck_unshare_blocks.h

deleted100644 → 0

+0 −22

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 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.
		*/

		#ifndef _FILESYSTEM_CMDS_H
		#define _FILESYSTEM_CMDS_H

		bool do_fsck_unshare_blocks();

		#endif // _FILESYSTEM_CMDS_H

recovery.cpp

+1 −10

Original line number	Diff line number	Diff line
		@@ -45,7 +45,6 @@
		#include <ziparchive/zip_archive.h>

		#include "bootloader_message/bootloader_message.h"
		#include "fsck_unshare_blocks.h"
		#include "install/adb_install.h"
		#include "install/fuse_install.h"
		#include "install/install.h"
		@@ -524,7 +523,6 @@ static void log_failure_code(ErrorCode code, const std::string& update_package)
		Device::BuiltinAction start_recovery(Device* device, const std::vector<std::string>& args) {
		static constexpr struct option OPTIONS[] = {
		{ "fastboot", no_argument, nullptr, 0 },
		{ "fsck_unshare_blocks", no_argument, nullptr, 0 },
		{ "install_with_fuse", no_argument, nullptr, 0 },
		{ "just_exit", no_argument, nullptr, 'x' },
		{ "locale", required_argument, nullptr, 0 },
		@@ -557,7 +555,6 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
		bool rescue = false;
		bool just_exit = false;
		bool shutdown_after = false;
		bool fsck_unshare_blocks = false;
		int retry_count = 0;
		bool security_update = false;
		std::string locale;
		@@ -580,9 +577,7 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
		break;
		case 0: {
		std::string option = OPTIONS[option_index].name;
		if (option == "fsck_unshare_blocks") {
		fsck_unshare_blocks = true;
		} else if (option == "install_with_fuse") {
		if (option == "install_with_fuse") {
		install_with_fuse = true;
		} else if (option == "locale" \|\| option == "fastboot" \|\| option == "reason") {
		// Handled in recovery_main.cpp
		@@ -779,10 +774,6 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
		save_current_log = true;
		status = ApplyFromAdb(device, true /* rescue_mode */, &next_action);
		ui->Print("\nInstall from ADB complete (status: %d).\n", status);
		} else if (fsck_unshare_blocks) {
		if (!do_fsck_unshare_blocks()) {
		status = INSTALL_ERROR;
		}
		} else if (!just_exit) {
		// If this is an eng or userdebug build, automatically turn on the text display if no command
		// is specified. Note that this should be called before setting the background to avoid