196 lines
7.9 KiB
C++
196 lines
7.9 KiB
C++
/*
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* Copyright (C) 2008 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 <errno.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/un.h>
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#include "Utils.h"
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#include "android/os/IVold.h"
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#include <android-base/logging.h>
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#include <android-base/parsebool.h>
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#include <android-base/parseint.h>
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#include <android-base/stringprintf.h>
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#include <android-base/strings.h>
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#include <binder/IServiceManager.h>
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#include <binder/Status.h>
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#include <utils/Errors.h>
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#include <private/android_filesystem_config.h>
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static void usage(char* progname);
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static android::sp<android::IBinder> getServiceAggressive() {
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android::sp<android::IBinder> res;
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auto sm = android::defaultServiceManager();
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auto name = android::String16("vold");
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for (int i = 0; i < 5000; i++) {
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res = sm->checkService(name);
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if (res) {
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LOG(VERBOSE) << "Waited " << (i * 10) << "ms for vold";
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break;
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}
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usleep(10000); // 10ms
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}
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return res;
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}
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static void checkStatus(std::vector<std::string>& cmd, android::binder::Status status) {
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if (status.isOk()) return;
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std::string command = ::android::base::Join(cmd, " ");
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LOG(ERROR) << "Command: " << command << " Failed: " << status.toString8().string();
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exit(ENOTTY);
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}
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static void bindkeys(std::vector<std::string>& args, const android::sp<android::os::IVold>& vold) {
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std::string raw_bytes;
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const char* seed_value;
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seed_value = getenv("SEED_VALUE");
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if (seed_value == NULL) {
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LOG(ERROR) << "Empty seed";
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exit(EINVAL);
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}
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android::status_t status = android::vold::HexToStr(seed_value, raw_bytes);
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if (status != android::OK) {
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LOG(ERROR) << "Extraction of seed failed: " << status;
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exit(status);
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}
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std::vector<uint8_t> seed{raw_bytes.begin(), raw_bytes.end()};
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checkStatus(args, vold->setStorageBindingSeed(seed));
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}
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int main(int argc, char** argv) {
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setenv("ANDROID_LOG_TAGS", "*:v", 1);
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if (getppid() == 1) {
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// If init is calling us then it's during boot and we should log to kmsg
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android::base::InitLogging(argv, &android::base::KernelLogger);
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} else {
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android::base::InitLogging(argv, &android::base::StderrLogger);
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}
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std::vector<std::string> args(argv + 1, argv + argc);
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if (args.size() > 0 && args[0] == "--wait") {
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// Just ignore the --wait flag
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args.erase(args.begin());
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}
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if (args.size() < 2) {
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usage(argv[0]);
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exit(5);
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}
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android::sp<android::IBinder> binder = getServiceAggressive();
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if (!binder) {
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LOG(ERROR) << "Failed to obtain vold Binder";
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exit(EINVAL);
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}
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auto vold = android::interface_cast<android::os::IVold>(binder);
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if (args[0] == "cryptfs" && args[1] == "enablefilecrypto") {
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checkStatus(args, vold->fbeEnable());
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} else if (args[0] == "cryptfs" && args[1] == "init_user0") {
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checkStatus(args, vold->initUser0());
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} else if (args[0] == "cryptfs" && args[1] == "enablecrypto") {
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int passwordType = android::os::IVold::PASSWORD_TYPE_DEFAULT;
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int encryptionFlags = android::os::IVold::ENCRYPTION_FLAG_NO_UI;
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checkStatus(args, vold->fdeEnable(passwordType, "", encryptionFlags));
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} else if (args[0] == "cryptfs" && args[1] == "mountdefaultencrypted") {
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checkStatus(args, vold->mountDefaultEncrypted());
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} else if (args[0] == "volume" && args[1] == "abort_fuse") {
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checkStatus(args, vold->abortFuse());
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} else if (args[0] == "volume" && args[1] == "shutdown") {
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checkStatus(args, vold->shutdown());
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} else if (args[0] == "volume" && args[1] == "reset") {
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checkStatus(args, vold->reset());
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} else if (args[0] == "cryptfs" && args[1] == "bindkeys") {
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bindkeys(args, vold);
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} else if (args[0] == "cryptfs" && args[1] == "mountFstab" && args.size() == 4) {
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checkStatus(args, vold->mountFstab(args[2], args[3]));
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} else if (args[0] == "cryptfs" && args[1] == "encryptFstab" && args.size() == 6) {
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auto shouldFormat = android::base::ParseBool(args[4]);
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if (shouldFormat == android::base::ParseBoolResult::kError) exit(EINVAL);
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checkStatus(args, vold->encryptFstab(args[2], args[3],
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shouldFormat == android::base::ParseBoolResult::kTrue,
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args[5]));
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} else if (args[0] == "checkpoint" && args[1] == "supportsCheckpoint" && args.size() == 2) {
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bool supported = false;
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checkStatus(args, vold->supportsCheckpoint(&supported));
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return supported ? 1 : 0;
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} else if (args[0] == "checkpoint" && args[1] == "supportsBlockCheckpoint" &&
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args.size() == 2) {
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bool supported = false;
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checkStatus(args, vold->supportsBlockCheckpoint(&supported));
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return supported ? 1 : 0;
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} else if (args[0] == "checkpoint" && args[1] == "supportsFileCheckpoint" && args.size() == 2) {
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bool supported = false;
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checkStatus(args, vold->supportsFileCheckpoint(&supported));
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return supported ? 1 : 0;
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} else if (args[0] == "checkpoint" && args[1] == "startCheckpoint" && args.size() == 3) {
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int retry;
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if (!android::base::ParseInt(args[2], &retry)) exit(EINVAL);
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checkStatus(args, vold->startCheckpoint(retry));
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} else if (args[0] == "checkpoint" && args[1] == "needsCheckpoint" && args.size() == 2) {
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bool enabled = false;
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checkStatus(args, vold->needsCheckpoint(&enabled));
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return enabled ? 1 : 0;
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} else if (args[0] == "checkpoint" && args[1] == "needsRollback" && args.size() == 2) {
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bool enabled = false;
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checkStatus(args, vold->needsRollback(&enabled));
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return enabled ? 1 : 0;
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} else if (args[0] == "checkpoint" && args[1] == "commitChanges" && args.size() == 2) {
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checkStatus(args, vold->commitChanges());
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} else if (args[0] == "checkpoint" && args[1] == "prepareCheckpoint" && args.size() == 2) {
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checkStatus(args, vold->prepareCheckpoint());
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} else if (args[0] == "checkpoint" && args[1] == "restoreCheckpoint" && args.size() == 3) {
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checkStatus(args, vold->restoreCheckpoint(args[2]));
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} else if (args[0] == "checkpoint" && args[1] == "restoreCheckpointPart" && args.size() == 4) {
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int count;
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if (!android::base::ParseInt(args[3], &count)) exit(EINVAL);
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checkStatus(args, vold->restoreCheckpointPart(args[2], count));
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} else if (args[0] == "checkpoint" && args[1] == "markBootAttempt" && args.size() == 2) {
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checkStatus(args, vold->markBootAttempt());
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} else if (args[0] == "checkpoint" && args[1] == "abortChanges" && args.size() == 4) {
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int retry;
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if (!android::base::ParseInt(args[2], &retry)) exit(EINVAL);
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checkStatus(args, vold->abortChanges(args[2], retry != 0));
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} else if (args[0] == "checkpoint" && args[1] == "resetCheckpoint") {
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checkStatus(args, vold->resetCheckpoint());
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} else if (args[0] == "keymaster" && args[1] == "earlyBootEnded") {
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checkStatus(args, vold->earlyBootEnded());
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} else {
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LOG(ERROR) << "Raw commands are no longer supported";
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exit(EINVAL);
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}
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return 0;
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}
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static void usage(char* progname) {
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LOG(INFO) << "Usage: " << progname << " [--wait] <system> <subcommand> [args...]";
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}
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