| /* |
| * Copyright (C) 2009 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 "updater/install.h" |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <ftw.h> |
| #include <inttypes.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/capability.h> |
| #include <sys/mount.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <sys/xattr.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <utime.h> |
| |
| #include <linux/xattr.h> |
| |
| #include <limits> |
| #include <memory> |
| #include <string> |
| #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 <applypatch/applypatch.h> |
| #include <bootloader_message/bootloader_message.h> |
| #include <ext4_utils/wipe.h> |
| #include <openssl/sha.h> |
| #include <selinux/label.h> |
| #include <selinux/selinux.h> |
| #include <ziparchive/zip_archive.h> |
| |
| #include "edify/expr.h" |
| #include "edify/updater_interface.h" |
| #include "edify/updater_runtime_interface.h" |
| #include "otautil/dirutil.h" |
| #include "otautil/error_code.h" |
| #include "otautil/print_sha1.h" |
| #include "otautil/sysutil.h" |
| #include "otautil/ziputil.h" |
| |
| #ifndef __ANDROID__ |
| #include <cutils/memory.h> // for strlcpy |
| #endif |
| |
| static bool UpdateBlockDeviceNameForPartition(UpdaterInterface* updater, Partition* partition) { |
| CHECK(updater); |
| std::string name = updater->FindBlockDeviceName(partition->name); |
| if (name.empty()) { |
| LOG(ERROR) << "Failed to find the block device " << partition->name; |
| return false; |
| } |
| |
| partition->name = std::move(name); |
| return true; |
| } |
| |
| static bool is_dir(const std::string& dirpath) { |
| struct stat st; |
| return stat(dirpath.c_str(), &st) == 0 && S_ISDIR(st.st_mode); |
| } |
| |
| // Create all parent directories of name, if necessary. |
| static bool make_parents(const std::string& name) { |
| size_t prev_end = 0; |
| while (prev_end < name.size()) { |
| size_t next_end = name.find('/', prev_end + 1); |
| if (next_end == std::string::npos) { |
| break; |
| } |
| std::string dir_path = name.substr(0, next_end); |
| if (!is_dir(dir_path)) { |
| int result = mkdir(dir_path.c_str(), 0700); |
| if (result != 0) { |
| PLOG(ERROR) << "failed to mkdir " << dir_path << " when make parents for " << name; |
| return false; |
| } |
| |
| LOG(INFO) << "created [" << dir_path << "]"; |
| } |
| prev_end = next_end; |
| } |
| return true; |
| } |
| |
| // This is the updater side handler for ui_print() in edify script. Contents will be sent over to |
| // the recovery side for on-screen display. |
| Value* UIPrintFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| |
| std::string buffer = android::base::Join(args, ""); |
| state->updater->UiPrint(buffer); |
| return StringValue(buffer); |
| } |
| |
| // package_extract_dir(package_dir, dest_dir) |
| // Extracts all files from the package underneath package_dir and writes them to the |
| // corresponding tree beneath dest_dir. Any existing files are overwritten. |
| // Example: package_extract_dir("system", "/system") |
| // |
| // Note: package_dir needs to be a relative path; dest_dir needs to be an absolute path. |
| Value* PackageExtractDirFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& zip_path = args[0]; |
| const std::string& dest_path = args[1]; |
| |
| auto updater = state->updater; |
| |
| ZipArchiveHandle za = updater->GetPackageHandle(); |
| |
| // To create a consistent system image, never use the clock for timestamps. |
| constexpr struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default |
| |
| bool success = ExtractPackageRecursive(za, zip_path, dest_path, ×tamp, |
| updater->GetRuntime()->sehandle()); |
| |
| return StringValue(success ? "t" : ""); |
| } |
| |
| // package_extract_file(package_file[, dest_file]) |
| // Extracts a single package_file from the update package and writes it to dest_file, |
| // overwriting existing files if necessary. Without the dest_file argument, returns the |
| // contents of the package file as a binary blob. |
| Value* PackageExtractFileFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() < 1 || argv.size() > 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 or 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| if (argv.size() == 2) { |
| // The two-argument version extracts to a file. |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse %zu args", name, |
| argv.size()); |
| } |
| const std::string& zip_path = args[0]; |
| std::string dest_path = args[1]; |
| |
| ZipArchiveHandle za = state->updater->GetPackageHandle(); |
| ZipEntry64 entry; |
| if (FindEntry(za, zip_path, &entry) != 0) { |
| LOG(ERROR) << name << ": no " << zip_path << " in package"; |
| return StringValue(""); |
| } |
| |
| // Update the destination of package_extract_file if it's a block device. During simulation the |
| // destination will map to a fake file. |
| if (std::string block_device_name = state->updater->FindBlockDeviceName(dest_path); |
| !block_device_name.empty()) { |
| dest_path = block_device_name; |
| } |
| |
| android::base::unique_fd fd(TEMP_FAILURE_RETRY( |
| open(dest_path.c_str(), O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR))); |
| if (fd == -1) { |
| PLOG(ERROR) << name << ": can't open " << dest_path << " for write"; |
| return StringValue(""); |
| } |
| |
| bool success = true; |
| int32_t ret = ExtractEntryToFile(za, &entry, fd); |
| if (ret != 0) { |
| LOG(ERROR) << name << ": Failed to extract entry \"" << zip_path << "\" (" |
| << entry.uncompressed_length << " bytes) to \"" << dest_path |
| << "\": " << ErrorCodeString(ret); |
| success = false; |
| } |
| if (fsync(fd) == -1) { |
| PLOG(ERROR) << "fsync of \"" << dest_path << "\" failed"; |
| success = false; |
| } |
| |
| if (close(fd.release()) != 0) { |
| PLOG(ERROR) << "close of \"" << dest_path << "\" failed"; |
| success = false; |
| } |
| |
| return StringValue(success ? "t" : ""); |
| } else { |
| // The one-argument version returns the contents of the file as the result. |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse %zu args", name, |
| argv.size()); |
| } |
| const std::string& zip_path = args[0]; |
| |
| ZipArchiveHandle za = state->updater->GetPackageHandle(); |
| ZipEntry64 entry; |
| if (FindEntry(za, zip_path, &entry) != 0) { |
| return ErrorAbort(state, kPackageExtractFileFailure, "%s(): no %s in package", name, |
| zip_path.c_str()); |
| } |
| |
| std::string buffer; |
| if (entry.uncompressed_length > std::numeric_limits<size_t>::max()) { |
| return ErrorAbort(state, kPackageExtractFileFailure, |
| "%s(): Entry `%s` Uncompressed size exceeds size of address space.", name, |
| zip_path.c_str()); |
| } |
| buffer.resize(entry.uncompressed_length); |
| |
| int32_t ret = |
| ExtractToMemory(za, &entry, reinterpret_cast<uint8_t*>(&buffer[0]), buffer.size()); |
| if (ret != 0) { |
| return ErrorAbort(state, kPackageExtractFileFailure, |
| "%s: Failed to extract entry \"%s\" (%zu bytes) to memory: %s", name, |
| zip_path.c_str(), buffer.size(), ErrorCodeString(ret)); |
| } |
| |
| return new Value(Value::Type::BLOB, buffer); |
| } |
| } |
| |
| // patch_partition_check(target_partition, source_partition) |
| // Checks if the target and source partitions have the desired checksums to be patched. It returns |
| // directly, if the target partition already has the expected checksum. Otherwise it in turn |
| // checks the integrity of the source partition and the backup file on /cache. |
| // |
| // For example, patch_partition_check( |
| // "EMMC:/dev/block/boot:12342568:8aaacf187a6929d0e9c3e9e46ea7ff495b43424d", |
| // "EMMC:/dev/block/boot:12363048:06b0b16299dcefc94900efed01e0763ff644ffa4") |
| Value* PatchPartitionCheckFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, |
| "%s(): Invalid number of args (expected 2, got %zu)", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args, 0, 2)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| |
| std::string err; |
| auto target = Partition::Parse(args[0], &err); |
| if (!target) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse target \"%s\": %s", name, |
| args[0].c_str(), err.c_str()); |
| } |
| |
| auto source = Partition::Parse(args[1], &err); |
| if (!source) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse source \"%s\": %s", name, |
| args[1].c_str(), err.c_str()); |
| } |
| |
| if (!UpdateBlockDeviceNameForPartition(state->updater, &source) || |
| !UpdateBlockDeviceNameForPartition(state->updater, &target)) { |
| return StringValue(""); |
| } |
| |
| bool result = PatchPartitionCheck(target, source); |
| return StringValue(result ? "t" : ""); |
| } |
| |
| // patch_partition(target, source, patch) |
| // Applies the given patch to the source partition, and writes the result to the target partition. |
| // |
| // For example, patch_partition( |
| // "EMMC:/dev/block/boot:12342568:8aaacf187a6929d0e9c3e9e46ea7ff495b43424d", |
| // "EMMC:/dev/block/boot:12363048:06b0b16299dcefc94900efed01e0763ff644ffa4", |
| // package_extract_file("boot.img.p")) |
| Value* PatchPartitionFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 3) { |
| return ErrorAbort(state, kArgsParsingFailure, |
| "%s(): Invalid number of args (expected 3, got %zu)", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args, 0, 2)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| |
| std::string err; |
| auto target = Partition::Parse(args[0], &err); |
| if (!target) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse target \"%s\": %s", name, |
| args[0].c_str(), err.c_str()); |
| } |
| |
| auto source = Partition::Parse(args[1], &err); |
| if (!source) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse source \"%s\": %s", name, |
| args[1].c_str(), err.c_str()); |
| } |
| |
| std::vector<std::unique_ptr<Value>> values; |
| if (!ReadValueArgs(state, argv, &values, 2, 1) || values[0]->type != Value::Type::BLOB) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Invalid patch arg", name); |
| } |
| |
| if (!UpdateBlockDeviceNameForPartition(state->updater, &source) || |
| !UpdateBlockDeviceNameForPartition(state->updater, &target)) { |
| return StringValue(""); |
| } |
| |
| bool result = PatchPartition(target, source, *values[0], nullptr, true); |
| return StringValue(result ? "t" : ""); |
| } |
| |
| // mount(fs_type, partition_type, location, mount_point) |
| // mount(fs_type, partition_type, location, mount_point, mount_options) |
| |
| // fs_type="ext4" partition_type="EMMC" location=device |
| Value* MountFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 4 && argv.size() != 5) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& fs_type = args[0]; |
| const std::string& partition_type = args[1]; |
| const std::string& location = args[2]; |
| const std::string& mount_point = args[3]; |
| std::string mount_options; |
| |
| if (argv.size() == 5) { |
| mount_options = args[4]; |
| } |
| |
| if (fs_type.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name); |
| } |
| if (partition_type.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty", |
| name); |
| } |
| if (location.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name); |
| } |
| if (mount_point.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty", |
| name); |
| } |
| |
| auto updater = state->updater; |
| if (updater->GetRuntime()->Mount(location, mount_point, fs_type, mount_options) != 0) { |
| updater->UiPrint(android::base::StringPrintf("%s: Failed to mount %s at %s: %s", name, |
| location.c_str(), mount_point.c_str(), |
| strerror(errno))); |
| return StringValue(""); |
| } |
| |
| return StringValue(mount_point); |
| } |
| |
| // is_mounted(mount_point) |
| Value* IsMountedFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& mount_point = args[0]; |
| if (mount_point.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, |
| "mount_point argument to unmount() can't be empty"); |
| } |
| |
| auto updater_runtime = state->updater->GetRuntime(); |
| if (!updater_runtime->IsMounted(mount_point)) { |
| return StringValue(""); |
| } |
| |
| return StringValue(mount_point); |
| } |
| |
| Value* UnmountFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& mount_point = args[0]; |
| if (mount_point.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, |
| "mount_point argument to unmount() can't be empty"); |
| } |
| |
| auto updater = state->updater; |
| auto [mounted, result] = updater->GetRuntime()->Unmount(mount_point); |
| if (!mounted) { |
| updater->UiPrint( |
| android::base::StringPrintf("Failed to unmount %s: No such volume", mount_point.c_str())); |
| return nullptr; |
| } else if (result != 0) { |
| updater->UiPrint(android::base::StringPrintf("Failed to unmount %s: %s", mount_point.c_str(), |
| strerror(errno))); |
| } |
| |
| return StringValue(mount_point); |
| } |
| |
| // format(fs_type, partition_type, location, fs_size, mount_point) |
| // |
| // fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location> |
| // fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location> |
| // if fs_size == 0, then make fs uses the entire partition. |
| // if fs_size > 0, that is the size to use |
| // if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs") |
| Value* FormatFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 5) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& fs_type = args[0]; |
| const std::string& partition_type = args[1]; |
| const std::string& location = args[2]; |
| const std::string& fs_size = args[3]; |
| const std::string& mount_point = args[4]; |
| |
| if (fs_type.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name); |
| } |
| if (partition_type.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty", |
| name); |
| } |
| if (location.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name); |
| } |
| if (mount_point.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty", |
| name); |
| } |
| |
| int64_t size; |
| if (!android::base::ParseInt(fs_size, &size)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse int in %s", name, |
| fs_size.c_str()); |
| } |
| |
| auto updater_runtime = state->updater->GetRuntime(); |
| if (fs_type == "ext4") { |
| std::vector<std::string> mke2fs_args = { |
| "/system/bin/mke2fs", "-t", "ext4", "-b", "4096", location |
| }; |
| if (size != 0) { |
| mke2fs_args.push_back(std::to_string(size / 4096LL)); |
| } |
| |
| if (auto status = updater_runtime->RunProgram(mke2fs_args, true); status != 0) { |
| LOG(ERROR) << name << ": mke2fs failed (" << status << ") on " << location; |
| return StringValue(""); |
| } |
| |
| if (auto status = updater_runtime->RunProgram( |
| { "/system/bin/e2fsdroid", "-e", "-a", mount_point, location }, true); |
| status != 0) { |
| LOG(ERROR) << name << ": e2fsdroid failed (" << status << ") on " << location; |
| return StringValue(""); |
| } |
| return StringValue(location); |
| } |
| |
| if (fs_type == "f2fs") { |
| if (size < 0) { |
| LOG(ERROR) << name << ": fs_size can't be negative for f2fs: " << fs_size; |
| return StringValue(""); |
| } |
| std::vector<std::string> f2fs_args = { |
| "/system/bin/make_f2fs", "-g", "android", "-w", "512", location |
| }; |
| if (size >= 512) { |
| f2fs_args.push_back(std::to_string(size / 512)); |
| } |
| if (auto status = updater_runtime->RunProgram(f2fs_args, true); status != 0) { |
| LOG(ERROR) << name << ": make_f2fs failed (" << status << ") on " << location; |
| return StringValue(""); |
| } |
| |
| if (auto status = updater_runtime->RunProgram( |
| { "/system/bin/sload_f2fs", "-t", mount_point, location }, true); |
| status != 0) { |
| LOG(ERROR) << name << ": sload_f2fs failed (" << status << ") on " << location; |
| return StringValue(""); |
| } |
| |
| return StringValue(location); |
| } |
| |
| LOG(ERROR) << name << ": unsupported fs_type \"" << fs_type << "\" partition_type \"" |
| << partition_type << "\""; |
| return nullptr; |
| } |
| |
| // rename(src_name, dst_name) |
| // Renames src_name to dst_name. It automatically creates the necessary directories for dst_name. |
| // Example: rename("system/app/Hangouts/Hangouts.apk", "system/priv-app/Hangouts/Hangouts.apk") |
| Value* RenameFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& src_name = args[0]; |
| const std::string& dst_name = args[1]; |
| |
| if (src_name.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "src_name argument to %s() can't be empty", name); |
| } |
| if (dst_name.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "dst_name argument to %s() can't be empty", name); |
| } |
| if (!make_parents(dst_name)) { |
| return ErrorAbort(state, kFileRenameFailure, "Creating parent of %s failed, error %s", |
| dst_name.c_str(), strerror(errno)); |
| } else if (access(dst_name.c_str(), F_OK) == 0 && access(src_name.c_str(), F_OK) != 0) { |
| // File was already moved |
| return StringValue(dst_name); |
| } else if (rename(src_name.c_str(), dst_name.c_str()) != 0) { |
| return ErrorAbort(state, kFileRenameFailure, "Rename of %s to %s failed, error %s", |
| src_name.c_str(), dst_name.c_str(), strerror(errno)); |
| } |
| |
| return StringValue(dst_name); |
| } |
| |
| // delete([filename, ...]) |
| // Deletes all the filenames listed. Returns the number of files successfully deleted. |
| // |
| // delete_recursive([dirname, ...]) |
| // Recursively deletes dirnames and all their contents. Returns the number of directories |
| // successfully deleted. |
| Value* DeleteFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| std::vector<std::string> paths; |
| if (!ReadArgs(state, argv, &paths)) { |
| return nullptr; |
| } |
| |
| bool recursive = (strcmp(name, "delete_recursive") == 0); |
| |
| int success = 0; |
| for (const auto& path : paths) { |
| if ((recursive ? dirUnlinkHierarchy(path.c_str()) : unlink(path.c_str())) == 0) { |
| ++success; |
| } |
| } |
| |
| return StringValue(std::to_string(success)); |
| } |
| |
| Value* ShowProgressFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& frac_str = args[0]; |
| const std::string& sec_str = args[1]; |
| |
| double frac; |
| if (!android::base::ParseDouble(frac_str.c_str(), &frac)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse double in %s", name, |
| frac_str.c_str()); |
| } |
| int sec; |
| if (!android::base::ParseInt(sec_str.c_str(), &sec)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse int in %s", name, |
| sec_str.c_str()); |
| } |
| |
| state->updater->WriteToCommandPipe(android::base::StringPrintf("progress %f %d", frac, sec)); |
| |
| return StringValue(frac_str); |
| } |
| |
| Value* SetProgressFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& frac_str = args[0]; |
| |
| double frac; |
| if (!android::base::ParseDouble(frac_str.c_str(), &frac)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse double in %s", name, |
| frac_str.c_str()); |
| } |
| |
| state->updater->WriteToCommandPipe(android::base::StringPrintf("set_progress %f", frac)); |
| |
| return StringValue(frac_str); |
| } |
| |
| // symlink(target, [src1, src2, ...]) |
| // Creates all sources as symlinks to target. It unlinks any previously existing src1, src2, etc |
| // before creating symlinks. |
| Value* SymlinkFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() == 0) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1+ args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| |
| const auto& target = args[0]; |
| if (target.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() target argument can't be empty", name); |
| } |
| |
| size_t bad = 0; |
| for (size_t i = 1; i < args.size(); ++i) { |
| const auto& src = args[i]; |
| if (unlink(src.c_str()) == -1 && errno != ENOENT) { |
| PLOG(ERROR) << name << ": failed to remove " << src; |
| ++bad; |
| } else if (!make_parents(src)) { |
| LOG(ERROR) << name << ": failed to symlink " << src << " to " << target |
| << ": making parents failed"; |
| ++bad; |
| } else if (symlink(target.c_str(), src.c_str()) == -1) { |
| PLOG(ERROR) << name << ": failed to symlink " << src << " to " << target; |
| ++bad; |
| } |
| } |
| if (bad != 0) { |
| return ErrorAbort(state, kSymlinkFailure, "%s: Failed to create %zu symlink(s)", name, bad); |
| } |
| return StringValue("t"); |
| } |
| |
| struct perm_parsed_args { |
| bool has_uid; |
| uid_t uid; |
| bool has_gid; |
| gid_t gid; |
| bool has_mode; |
| mode_t mode; |
| bool has_fmode; |
| mode_t fmode; |
| bool has_dmode; |
| mode_t dmode; |
| bool has_selabel; |
| const char* selabel; |
| bool has_capabilities; |
| uint64_t capabilities; |
| }; |
| |
| static struct perm_parsed_args ParsePermArgs(State* state, const std::vector<std::string>& args) { |
| struct perm_parsed_args parsed; |
| auto updater = state->updater; |
| int bad = 0; |
| static int max_warnings = 20; |
| |
| memset(&parsed, 0, sizeof(parsed)); |
| |
| for (size_t i = 1; i < args.size(); i += 2) { |
| if (args[i] == "uid") { |
| int64_t uid; |
| if (sscanf(args[i + 1].c_str(), "%" SCNd64, &uid) == 1) { |
| parsed.uid = uid; |
| parsed.has_uid = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid UID \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (args[i] == "gid") { |
| int64_t gid; |
| if (sscanf(args[i + 1].c_str(), "%" SCNd64, &gid) == 1) { |
| parsed.gid = gid; |
| parsed.has_gid = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid GID \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (args[i] == "mode") { |
| int32_t mode; |
| if (sscanf(args[i + 1].c_str(), "%" SCNi32, &mode) == 1) { |
| parsed.mode = mode; |
| parsed.has_mode = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid mode \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (args[i] == "dmode") { |
| int32_t mode; |
| if (sscanf(args[i + 1].c_str(), "%" SCNi32, &mode) == 1) { |
| parsed.dmode = mode; |
| parsed.has_dmode = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid dmode \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (args[i] == "fmode") { |
| int32_t mode; |
| if (sscanf(args[i + 1].c_str(), "%" SCNi32, &mode) == 1) { |
| parsed.fmode = mode; |
| parsed.has_fmode = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid fmode \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (args[i] == "capabilities") { |
| int64_t capabilities; |
| if (sscanf(args[i + 1].c_str(), "%" SCNi64, &capabilities) == 1) { |
| parsed.capabilities = capabilities; |
| parsed.has_capabilities = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid capabilities \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (args[i] == "selabel") { |
| if (!args[i + 1].empty()) { |
| parsed.selabel = args[i + 1].c_str(); |
| parsed.has_selabel = true; |
| } else { |
| updater->UiPrint(android::base::StringPrintf("ParsePermArgs: invalid selabel \"%s\"\n", |
| args[i + 1].c_str())); |
| bad++; |
| } |
| continue; |
| } |
| if (max_warnings != 0) { |
| printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i].c_str()); |
| max_warnings--; |
| if (max_warnings == 0) { |
| LOG(INFO) << "ParsedPermArgs: suppressing further warnings"; |
| } |
| } |
| } |
| return parsed; |
| } |
| |
| static int ApplyParsedPerms(State* state, const char* filename, const struct stat* statptr, |
| struct perm_parsed_args parsed) { |
| auto updater = state->updater; |
| int bad = 0; |
| |
| if (parsed.has_selabel) { |
| if (lsetfilecon(filename, parsed.selabel) != 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n", |
| filename, parsed.selabel, strerror(errno))); |
| bad++; |
| } |
| } |
| |
| /* ignore symlinks */ |
| if (S_ISLNK(statptr->st_mode)) { |
| return bad; |
| } |
| |
| if (parsed.has_uid) { |
| if (chown(filename, parsed.uid, -1) < 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: chown of %s to %d failed: %s\n", |
| filename, parsed.uid, strerror(errno))); |
| bad++; |
| } |
| } |
| |
| if (parsed.has_gid) { |
| if (chown(filename, -1, parsed.gid) < 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: chgrp of %s to %d failed: %s\n", |
| filename, parsed.gid, strerror(errno))); |
| bad++; |
| } |
| } |
| |
| if (parsed.has_mode) { |
| if (chmod(filename, parsed.mode) < 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: chmod of %s to %d failed: %s\n", |
| filename, parsed.mode, strerror(errno))); |
| bad++; |
| } |
| } |
| |
| if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) { |
| if (chmod(filename, parsed.dmode) < 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: chmod of %s to %d failed: %s\n", |
| filename, parsed.dmode, strerror(errno))); |
| bad++; |
| } |
| } |
| |
| if (parsed.has_fmode && S_ISREG(statptr->st_mode)) { |
| if (chmod(filename, parsed.fmode) < 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: chmod of %s to %d failed: %s\n", |
| filename, parsed.fmode, strerror(errno))); |
| bad++; |
| } |
| } |
| |
| if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) { |
| if (parsed.capabilities == 0) { |
| if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) { |
| // Report failure unless it's ENODATA (attribute not set) |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n", |
| filename, parsed.capabilities, strerror(errno))); |
| bad++; |
| } |
| } else { |
| struct vfs_cap_data cap_data; |
| memset(&cap_data, 0, sizeof(cap_data)); |
| cap_data.magic_etc = VFS_CAP_REVISION_2 | VFS_CAP_FLAGS_EFFECTIVE; |
| cap_data.data[0].permitted = (uint32_t)(parsed.capabilities & 0xffffffff); |
| cap_data.data[0].inheritable = 0; |
| cap_data.data[1].permitted = (uint32_t)(parsed.capabilities >> 32); |
| cap_data.data[1].inheritable = 0; |
| if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) { |
| updater->UiPrint(android::base::StringPrintf( |
| "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n", |
| filename, parsed.capabilities, strerror(errno))); |
| bad++; |
| } |
| } |
| } |
| |
| return bad; |
| } |
| |
| // nftw doesn't allow us to pass along context, so we need to use |
| // global variables. *sigh* |
| static struct perm_parsed_args recursive_parsed_args; |
| static State* recursive_state; |
| |
| static int do_SetMetadataRecursive(const char* filename, const struct stat* statptr, |
| int /*fileflags*/, struct FTW* /*pfwt*/) { |
| return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args); |
| } |
| |
| static Value* SetMetadataFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if ((argv.size() % 2) != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, |
| "%s() expects an odd number of arguments, got %zu", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| |
| struct stat sb; |
| if (lstat(args[0].c_str(), &sb) == -1) { |
| return ErrorAbort(state, kSetMetadataFailure, "%s: Error on lstat of \"%s\": %s", name, |
| args[0].c_str(), strerror(errno)); |
| } |
| |
| struct perm_parsed_args parsed = ParsePermArgs(state, args); |
| int bad = 0; |
| bool recursive = (strcmp(name, "set_metadata_recursive") == 0); |
| |
| if (recursive) { |
| recursive_parsed_args = parsed; |
| recursive_state = state; |
| bad += nftw(args[0].c_str(), do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS); |
| memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args)); |
| recursive_state = NULL; |
| } else { |
| bad += ApplyParsedPerms(state, args[0].c_str(), &sb, parsed); |
| } |
| |
| if (bad > 0) { |
| return ErrorAbort(state, kSetMetadataFailure, "%s: some changes failed", name); |
| } |
| |
| return StringValue(""); |
| } |
| |
| Value* GetPropFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| std::string key; |
| if (!Evaluate(state, argv[0], &key)) { |
| return nullptr; |
| } |
| |
| auto updater_runtime = state->updater->GetRuntime(); |
| std::string value = updater_runtime->GetProperty(key, ""); |
| |
| return StringValue(value); |
| } |
| |
| // file_getprop(file, key) |
| // |
| // interprets 'file' as a getprop-style file (key=value pairs, one |
| // per line. # comment lines, blank lines, lines without '=' ignored), |
| // and returns the value for 'key' (or "" if it isn't defined). |
| Value* FileGetPropFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& filename = args[0]; |
| const std::string& key = args[1]; |
| |
| std::string buffer; |
| auto updater_runtime = state->updater->GetRuntime(); |
| if (!updater_runtime->ReadFileToString(filename, &buffer)) { |
| ErrorAbort(state, kFreadFailure, "%s: failed to read %s", name, filename.c_str()); |
| return nullptr; |
| } |
| |
| std::vector<std::string> lines = android::base::Split(buffer, "\n"); |
| for (size_t i = 0; i < lines.size(); i++) { |
| std::string line = android::base::Trim(lines[i]); |
| |
| // comment or blank line: skip to next line |
| if (line.empty() || line[0] == '#') { |
| continue; |
| } |
| size_t equal_pos = line.find('='); |
| if (equal_pos == std::string::npos) { |
| continue; |
| } |
| |
| // trim whitespace between key and '=' |
| std::string str = android::base::Trim(line.substr(0, equal_pos)); |
| |
| // not the key we're looking for |
| if (key != str) continue; |
| |
| return StringValue(android::base::Trim(line.substr(equal_pos + 1))); |
| } |
| |
| return StringValue(""); |
| } |
| |
| // apply_patch_space(bytes) |
| Value* ApplyPatchSpaceFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 args, got %zu", name, |
| argv.size()); |
| } |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& bytes_str = args[0]; |
| |
| size_t bytes; |
| if (!android::base::ParseUint(bytes_str.c_str(), &bytes)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count", name, |
| bytes_str.c_str()); |
| } |
| |
| // Skip the cache size check if the update is a retry. |
| if (state->is_retry || CheckAndFreeSpaceOnCache(bytes)) { |
| return StringValue("t"); |
| } |
| return StringValue(""); |
| } |
| |
| Value* WipeCacheFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (!argv.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %zu", name, |
| argv.size()); |
| } |
| |
| state->updater->WriteToCommandPipe("wipe_cache"); |
| return StringValue("t"); |
| } |
| |
| Value* RunProgramFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() < 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| |
| auto updater_runtime = state->updater->GetRuntime(); |
| auto status = updater_runtime->RunProgram(args, false); |
| return StringValue(std::to_string(status)); |
| } |
| |
| // read_file(filename) |
| // Reads a local file 'filename' and returns its contents as a string Value. |
| Value* ReadFileFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| const std::string& filename = args[0]; |
| |
| std::string contents; |
| auto updater_runtime = state->updater->GetRuntime(); |
| if (updater_runtime->ReadFileToString(filename, &contents)) { |
| return new Value(Value::Type::STRING, std::move(contents)); |
| } |
| |
| // Leave it to caller to handle the failure. |
| PLOG(ERROR) << name << ": Failed to read " << filename; |
| return StringValue(""); |
| } |
| |
| // write_value(value, filename) |
| // Writes 'value' to 'filename'. |
| // Example: write_value("960000", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq") |
| Value* WriteValueFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| |
| const std::string& filename = args[1]; |
| if (filename.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Filename cannot be empty", name); |
| } |
| |
| const std::string& value = args[0]; |
| auto updater_runtime = state->updater->GetRuntime(); |
| if (!updater_runtime->WriteStringToFile(value, filename)) { |
| PLOG(ERROR) << name << ": Failed to write to \"" << filename << "\""; |
| return StringValue(""); |
| } |
| return StringValue("t"); |
| } |
| |
| // Immediately reboot the device. Recovery is not finished normally, |
| // so if you reboot into recovery it will re-start applying the |
| // current package (because nothing has cleared the copy of the |
| // arguments stored in the BCB). |
| // |
| // The argument is the partition name passed to the android reboot |
| // property. It can be "recovery" to boot from the recovery |
| // partition, or "" (empty string) to boot from the regular boot |
| // partition. |
| Value* RebootNowFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); |
| } |
| const std::string& filename = args[0]; |
| const std::string& property = args[1]; |
| |
| // Zero out the 'command' field of the bootloader message. Leave the rest intact. |
| bootloader_message boot; |
| std::string err; |
| if (!read_bootloader_message_from(&boot, filename, &err)) { |
| LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err; |
| return StringValue(""); |
| } |
| memset(boot.command, 0, sizeof(boot.command)); |
| if (!write_bootloader_message_to(boot, filename, &err)) { |
| LOG(ERROR) << name << "(): Failed to write to \"" << filename << "\": " << err; |
| return StringValue(""); |
| } |
| |
| Reboot(property); |
| |
| return ErrorAbort(state, kRebootFailure, "%s() failed to reboot", name); |
| } |
| |
| // Store a string value somewhere that future invocations of recovery |
| // can access it. This value is called the "stage" and can be used to |
| // drive packages that need to do reboots in the middle of |
| // installation and keep track of where they are in the multi-stage |
| // install. |
| // |
| // The first argument is the block device for the misc partition |
| // ("/misc" in the fstab), which is where this value is stored. The |
| // second argument is the string to store; it should not exceed 31 |
| // bytes. |
| Value* SetStageFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& filename = args[0]; |
| const std::string& stagestr = args[1]; |
| |
| // Store this value in the misc partition, immediately after the |
| // bootloader message that the main recovery uses to save its |
| // arguments in case of the device restarting midway through |
| // package installation. |
| bootloader_message boot; |
| std::string err; |
| if (!read_bootloader_message_from(&boot, filename, &err)) { |
| LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err; |
| return StringValue(""); |
| } |
| strlcpy(boot.stage, stagestr.c_str(), sizeof(boot.stage)); |
| if (!write_bootloader_message_to(boot, filename, &err)) { |
| LOG(ERROR) << name << "(): Failed to write to \"" << filename << "\": " << err; |
| return StringValue(""); |
| } |
| |
| return StringValue(filename); |
| } |
| |
| // Return the value most recently saved with SetStageFn. The argument |
| // is the block device for the misc partition. |
| Value* GetStageFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& filename = args[0]; |
| |
| bootloader_message boot; |
| std::string err; |
| if (!read_bootloader_message_from(&boot, filename, &err)) { |
| LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err; |
| return StringValue(""); |
| } |
| |
| return StringValue(boot.stage); |
| } |
| |
| Value* WipeBlockDeviceFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 2) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name, |
| argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& filename = args[0]; |
| const std::string& len_str = args[1]; |
| |
| size_t len; |
| if (!android::base::ParseUint(len_str.c_str(), &len)) { |
| return nullptr; |
| } |
| |
| auto updater_runtime = state->updater->GetRuntime(); |
| int status = updater_runtime->WipeBlockDevice(filename, len); |
| return StringValue(status == 0 ? "t" : ""); |
| } |
| |
| Value* EnableRebootFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (!argv.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %zu", name, |
| argv.size()); |
| } |
| state->updater->WriteToCommandPipe("enable_reboot"); |
| return StringValue("t"); |
| } |
| |
| Value* Tune2FsFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.empty()) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects args, got %zu", name, argv.size()); |
| } |
| |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() could not read args", name); |
| } |
| |
| // tune2fs expects the program name as its first arg. |
| args.insert(args.begin(), "tune2fs"); |
| auto updater_runtime = state->updater->GetRuntime(); |
| if (auto result = updater_runtime->Tune2Fs(args); result != 0) { |
| return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d", name, result); |
| } |
| return StringValue("t"); |
| } |
| |
| Value* AddSlotSuffixFn(const char* name, State* state, |
| const std::vector<std::unique_ptr<Expr>>& argv) { |
| if (argv.size() != 1) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size()); |
| } |
| std::vector<std::string> args; |
| if (!ReadArgs(state, argv, &args)) { |
| return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); |
| } |
| const std::string& arg = args[0]; |
| auto updater_runtime = state->updater->GetRuntime(); |
| return StringValue(updater_runtime->AddSlotSuffix(arg)); |
| } |
| |
| void RegisterInstallFunctions() { |
| RegisterFunction("mount", MountFn); |
| RegisterFunction("is_mounted", IsMountedFn); |
| RegisterFunction("unmount", UnmountFn); |
| RegisterFunction("format", FormatFn); |
| RegisterFunction("show_progress", ShowProgressFn); |
| RegisterFunction("set_progress", SetProgressFn); |
| RegisterFunction("delete", DeleteFn); |
| RegisterFunction("delete_recursive", DeleteFn); |
| RegisterFunction("package_extract_dir", PackageExtractDirFn); |
| RegisterFunction("package_extract_file", PackageExtractFileFn); |
| RegisterFunction("symlink", SymlinkFn); |
| |
| // Usage: |
| // set_metadata("filename", "key1", "value1", "key2", "value2", ...) |
| // Example: |
| // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", |
| // "u:object_r:system_file:s0", "capabilities", 0x0); |
| RegisterFunction("set_metadata", SetMetadataFn); |
| |
| // Usage: |
| // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...) |
| // Example: |
| // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, |
| // "selabel", "u:object_r:system_file:s0", "capabilities", 0x0); |
| RegisterFunction("set_metadata_recursive", SetMetadataFn); |
| |
| RegisterFunction("getprop", GetPropFn); |
| RegisterFunction("file_getprop", FileGetPropFn); |
| |
| RegisterFunction("apply_patch_space", ApplyPatchSpaceFn); |
| RegisterFunction("patch_partition", PatchPartitionFn); |
| RegisterFunction("patch_partition_check", PatchPartitionCheckFn); |
| |
| RegisterFunction("wipe_block_device", WipeBlockDeviceFn); |
| |
| RegisterFunction("read_file", ReadFileFn); |
| RegisterFunction("rename", RenameFn); |
| RegisterFunction("write_value", WriteValueFn); |
| |
| RegisterFunction("wipe_cache", WipeCacheFn); |
| |
| RegisterFunction("ui_print", UIPrintFn); |
| |
| RegisterFunction("run_program", RunProgramFn); |
| |
| RegisterFunction("reboot_now", RebootNowFn); |
| RegisterFunction("get_stage", GetStageFn); |
| RegisterFunction("set_stage", SetStageFn); |
| |
| RegisterFunction("enable_reboot", EnableRebootFn); |
| RegisterFunction("tune2fs", Tune2FsFn); |
| |
| RegisterFunction("add_slot_suffix", AddSlotSuffixFn); |
| } |