-
Notifications
You must be signed in to change notification settings - Fork 8
/
vdc.cpp
195 lines (178 loc) · 7.92 KB
/
vdc.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
/*
* Copyright (C) 2008 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 <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/un.h>
#include "Utils.h"
#include "android/os/IVold.h"
#include <android-base/logging.h>
#include <android-base/parsebool.h>
#include <android-base/parseint.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <binder/IServiceManager.h>
#include <binder/Status.h>
#include <utils/Errors.h>
#include <private/android_filesystem_config.h>
static void usage(char* progname);
static android::sp<android::IBinder> getServiceAggressive() {
android::sp<android::IBinder> res;
auto sm = android::defaultServiceManager();
auto name = android::String16("vold");
for (int i = 0; i < 5000; i++) {
res = sm->checkService(name);
if (res) {
LOG(VERBOSE) << "Waited " << (i * 10) << "ms for vold";
break;
}
usleep(10000); // 10ms
}
return res;
}
static void checkStatus(std::vector<std::string>& cmd, android::binder::Status status) {
if (status.isOk()) return;
std::string command = ::android::base::Join(cmd, " ");
LOG(ERROR) << "Command: " << command << " Failed: " << status.toString8().string();
exit(ENOTTY);
}
static void bindkeys(std::vector<std::string>& args, const android::sp<android::os::IVold>& vold) {
std::string raw_bytes;
const char* seed_value;
seed_value = getenv("SEED_VALUE");
if (seed_value == NULL) {
LOG(ERROR) << "Empty seed";
exit(EINVAL);
}
android::status_t status = android::vold::HexToStr(seed_value, raw_bytes);
if (status != android::OK) {
LOG(ERROR) << "Extraction of seed failed: " << status;
exit(status);
}
std::vector<uint8_t> seed{raw_bytes.begin(), raw_bytes.end()};
checkStatus(args, vold->setStorageBindingSeed(seed));
}
int main(int argc, char** argv) {
setenv("ANDROID_LOG_TAGS", "*:v", 1);
if (getppid() == 1) {
// If init is calling us then it's during boot and we should log to kmsg
android::base::InitLogging(argv, &android::base::KernelLogger);
} else {
android::base::InitLogging(argv, &android::base::StderrLogger);
}
std::vector<std::string> args(argv + 1, argv + argc);
if (args.size() > 0 && args[0] == "--wait") {
// Just ignore the --wait flag
args.erase(args.begin());
}
if (args.size() < 2) {
usage(argv[0]);
exit(5);
}
android::sp<android::IBinder> binder = getServiceAggressive();
if (!binder) {
LOG(ERROR) << "Failed to obtain vold Binder";
exit(EINVAL);
}
auto vold = android::interface_cast<android::os::IVold>(binder);
if (args[0] == "cryptfs" && args[1] == "enablefilecrypto") {
checkStatus(args, vold->fbeEnable());
} else if (args[0] == "cryptfs" && args[1] == "init_user0") {
checkStatus(args, vold->initUser0());
} else if (args[0] == "cryptfs" && args[1] == "enablecrypto") {
int passwordType = android::os::IVold::PASSWORD_TYPE_DEFAULT;
int encryptionFlags = android::os::IVold::ENCRYPTION_FLAG_NO_UI;
checkStatus(args, vold->fdeEnable(passwordType, "", encryptionFlags));
} else if (args[0] == "cryptfs" && args[1] == "mountdefaultencrypted") {
checkStatus(args, vold->mountDefaultEncrypted());
} else if (args[0] == "volume" && args[1] == "abort_fuse") {
checkStatus(args, vold->abortFuse());
} else if (args[0] == "volume" && args[1] == "shutdown") {
checkStatus(args, vold->shutdown());
} else if (args[0] == "volume" && args[1] == "reset") {
checkStatus(args, vold->reset());
} else if (args[0] == "cryptfs" && args[1] == "bindkeys") {
bindkeys(args, vold);
} else if (args[0] == "cryptfs" && args[1] == "mountFstab" && args.size() == 4) {
checkStatus(args, vold->mountFstab(args[2], args[3]));
} else if (args[0] == "cryptfs" && args[1] == "encryptFstab" && args.size() == 6) {
auto shouldFormat = android::base::ParseBool(args[4]);
if (shouldFormat == android::base::ParseBoolResult::kError) exit(EINVAL);
checkStatus(args, vold->encryptFstab(args[2], args[3],
shouldFormat == android::base::ParseBoolResult::kTrue,
args[5]));
} else if (args[0] == "checkpoint" && args[1] == "supportsCheckpoint" && args.size() == 2) {
bool supported = false;
checkStatus(args, vold->supportsCheckpoint(&supported));
return supported ? 1 : 0;
} else if (args[0] == "checkpoint" && args[1] == "supportsBlockCheckpoint" &&
args.size() == 2) {
bool supported = false;
checkStatus(args, vold->supportsBlockCheckpoint(&supported));
return supported ? 1 : 0;
} else if (args[0] == "checkpoint" && args[1] == "supportsFileCheckpoint" && args.size() == 2) {
bool supported = false;
checkStatus(args, vold->supportsFileCheckpoint(&supported));
return supported ? 1 : 0;
} else if (args[0] == "checkpoint" && args[1] == "startCheckpoint" && args.size() == 3) {
int retry;
if (!android::base::ParseInt(args[2], &retry)) exit(EINVAL);
checkStatus(args, vold->startCheckpoint(retry));
} else if (args[0] == "checkpoint" && args[1] == "needsCheckpoint" && args.size() == 2) {
bool enabled = false;
checkStatus(args, vold->needsCheckpoint(&enabled));
return enabled ? 1 : 0;
} else if (args[0] == "checkpoint" && args[1] == "needsRollback" && args.size() == 2) {
bool enabled = false;
checkStatus(args, vold->needsRollback(&enabled));
return enabled ? 1 : 0;
} else if (args[0] == "checkpoint" && args[1] == "commitChanges" && args.size() == 2) {
checkStatus(args, vold->commitChanges());
} else if (args[0] == "checkpoint" && args[1] == "prepareCheckpoint" && args.size() == 2) {
checkStatus(args, vold->prepareCheckpoint());
} else if (args[0] == "checkpoint" && args[1] == "restoreCheckpoint" && args.size() == 3) {
checkStatus(args, vold->restoreCheckpoint(args[2]));
} else if (args[0] == "checkpoint" && args[1] == "restoreCheckpointPart" && args.size() == 4) {
int count;
if (!android::base::ParseInt(args[3], &count)) exit(EINVAL);
checkStatus(args, vold->restoreCheckpointPart(args[2], count));
} else if (args[0] == "checkpoint" && args[1] == "markBootAttempt" && args.size() == 2) {
checkStatus(args, vold->markBootAttempt());
} else if (args[0] == "checkpoint" && args[1] == "abortChanges" && args.size() == 4) {
int retry;
if (!android::base::ParseInt(args[2], &retry)) exit(EINVAL);
checkStatus(args, vold->abortChanges(args[2], retry != 0));
} else if (args[0] == "checkpoint" && args[1] == "resetCheckpoint") {
checkStatus(args, vold->resetCheckpoint());
} else if (args[0] == "keymaster" && args[1] == "earlyBootEnded") {
checkStatus(args, vold->earlyBootEnded());
} else {
LOG(ERROR) << "Raw commands are no longer supported";
exit(EINVAL);
}
return 0;
}
static void usage(char* progname) {
LOG(INFO) << "Usage: " << progname << " [--wait] <system> <subcommand> [args...]";
}