1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdlib.h>
18 #include <sys/socket.h>
19 #include <sys/types.h>
20 #include <netinet/in.h>
21 #include <arpa/inet.h>
22 #include <dirent.h>
23 #include <errno.h>
24 #include <fcntl.h>
25 #include <fs_mgr.h>
26 #include <string.h>
27
28 #define LOG_TAG "VoldCmdListener"
29 #include <cutils/log.h>
30
31 #include <sysutils/SocketClient.h>
32 #include <private/android_filesystem_config.h>
33
34 #include "CommandListener.h"
35 #include "VolumeManager.h"
36 #include "ResponseCode.h"
37 #include "Process.h"
38 #include "Loop.h"
39 #include "Devmapper.h"
40 #include "cryptfs.h"
41 #include "fstrim.h"
42
43 #define DUMP_ARGS 0
44
CommandListener()45 CommandListener::CommandListener() :
46 FrameworkListener("vold", true) {
47 registerCmd(new DumpCmd());
48 registerCmd(new VolumeCmd());
49 registerCmd(new AsecCmd());
50 registerCmd(new ObbCmd());
51 registerCmd(new StorageCmd());
52 registerCmd(new CryptfsCmd());
53 registerCmd(new FstrimCmd());
54 }
55
56 #if DUMP_ARGS
dumpArgs(int argc,char ** argv,int argObscure)57 void CommandListener::dumpArgs(int argc, char **argv, int argObscure) {
58 char buffer[4096];
59 char *p = buffer;
60
61 memset(buffer, 0, sizeof(buffer));
62 int i;
63 for (i = 0; i < argc; i++) {
64 unsigned int len = strlen(argv[i]) + 1; // Account for space
65 if (i == argObscure) {
66 len += 2; // Account for {}
67 }
68 if (((p - buffer) + len) < (sizeof(buffer)-1)) {
69 if (i == argObscure) {
70 *p++ = '{';
71 *p++ = '}';
72 *p++ = ' ';
73 continue;
74 }
75 strcpy(p, argv[i]);
76 p+= strlen(argv[i]);
77 if (i != (argc -1)) {
78 *p++ = ' ';
79 }
80 }
81 }
82 SLOGD("%s", buffer);
83 }
84 #else
dumpArgs(int,char **,int)85 void CommandListener::dumpArgs(int /*argc*/, char ** /*argv*/, int /*argObscure*/) { }
86 #endif
87
DumpCmd()88 CommandListener::DumpCmd::DumpCmd() :
89 VoldCommand("dump") {
90 }
91
runCommand(SocketClient * cli,int,char **)92 int CommandListener::DumpCmd::runCommand(SocketClient *cli,
93 int /*argc*/, char ** /*argv*/) {
94 cli->sendMsg(0, "Dumping loop status", false);
95 if (Loop::dumpState(cli)) {
96 cli->sendMsg(ResponseCode::CommandOkay, "Loop dump failed", true);
97 }
98 cli->sendMsg(0, "Dumping DM status", false);
99 if (Devmapper::dumpState(cli)) {
100 cli->sendMsg(ResponseCode::CommandOkay, "Devmapper dump failed", true);
101 }
102 cli->sendMsg(0, "Dumping mounted filesystems", false);
103 FILE *fp = fopen("/proc/mounts", "r");
104 if (fp) {
105 char line[1024];
106 while (fgets(line, sizeof(line), fp)) {
107 line[strlen(line)-1] = '\0';
108 cli->sendMsg(0, line, false);;
109 }
110 fclose(fp);
111 }
112
113 cli->sendMsg(ResponseCode::CommandOkay, "dump complete", false);
114 return 0;
115 }
116
VolumeCmd()117 CommandListener::VolumeCmd::VolumeCmd() :
118 VoldCommand("volume") {
119 }
120
runCommand(SocketClient * cli,int argc,char ** argv)121 int CommandListener::VolumeCmd::runCommand(SocketClient *cli,
122 int argc, char **argv) {
123 dumpArgs(argc, argv, -1);
124
125 if (argc < 2) {
126 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
127 return 0;
128 }
129
130 VolumeManager *vm = VolumeManager::Instance();
131 int rc = 0;
132
133 if (!strcmp(argv[1], "list")) {
134 bool broadcast = argc >= 3 && !strcmp(argv[2], "broadcast");
135 return vm->listVolumes(cli, broadcast);
136 } else if (!strcmp(argv[1], "debug")) {
137 if (argc != 3 || (argc == 3 && (strcmp(argv[2], "off") && strcmp(argv[2], "on")))) {
138 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume debug <off/on>", false);
139 return 0;
140 }
141 vm->setDebug(!strcmp(argv[2], "on") ? true : false);
142 } else if (!strcmp(argv[1], "mount")) {
143 if (argc != 3) {
144 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume mount <path>", false);
145 return 0;
146 }
147 rc = vm->mountVolume(argv[2]);
148 } else if (!strcmp(argv[1], "unmount")) {
149 if (argc < 3 || argc > 4 ||
150 ((argc == 4 && strcmp(argv[3], "force")) &&
151 (argc == 4 && strcmp(argv[3], "force_and_revert")))) {
152 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume unmount <path> [force|force_and_revert]", false);
153 return 0;
154 }
155
156 bool force = false;
157 bool revert = false;
158 if (argc >= 4 && !strcmp(argv[3], "force")) {
159 force = true;
160 } else if (argc >= 4 && !strcmp(argv[3], "force_and_revert")) {
161 force = true;
162 revert = true;
163 }
164 rc = vm->unmountVolume(argv[2], force, revert);
165 } else if (!strcmp(argv[1], "format")) {
166 if (argc < 3 || argc > 4 ||
167 (argc == 4 && strcmp(argv[3], "wipe"))) {
168 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume format <path> [wipe]", false);
169 return 0;
170 }
171 bool wipe = false;
172 if (argc >= 4 && !strcmp(argv[3], "wipe")) {
173 wipe = true;
174 }
175 rc = vm->formatVolume(argv[2], wipe);
176 } else if (!strcmp(argv[1], "share")) {
177 if (argc != 4) {
178 cli->sendMsg(ResponseCode::CommandSyntaxError,
179 "Usage: volume share <path> <method>", false);
180 return 0;
181 }
182 rc = vm->shareVolume(argv[2], argv[3]);
183 } else if (!strcmp(argv[1], "unshare")) {
184 if (argc != 4) {
185 cli->sendMsg(ResponseCode::CommandSyntaxError,
186 "Usage: volume unshare <path> <method>", false);
187 return 0;
188 }
189 rc = vm->unshareVolume(argv[2], argv[3]);
190 } else if (!strcmp(argv[1], "shared")) {
191 bool enabled = false;
192 if (argc != 4) {
193 cli->sendMsg(ResponseCode::CommandSyntaxError,
194 "Usage: volume shared <path> <method>", false);
195 return 0;
196 }
197
198 if (vm->shareEnabled(argv[2], argv[3], &enabled)) {
199 cli->sendMsg(
200 ResponseCode::OperationFailed, "Failed to determine share enable state", true);
201 } else {
202 cli->sendMsg(ResponseCode::ShareEnabledResult,
203 (enabled ? "Share enabled" : "Share disabled"), false);
204 }
205 return 0;
206 } else if (!strcmp(argv[1], "mkdirs")) {
207 if (argc != 3) {
208 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume mkdirs <path>", false);
209 return 0;
210 }
211 rc = vm->mkdirs(argv[2]);
212 } else {
213 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown volume cmd", false);
214 }
215
216 if (!rc) {
217 cli->sendMsg(ResponseCode::CommandOkay, "volume operation succeeded", false);
218 } else {
219 int erno = errno;
220 rc = ResponseCode::convertFromErrno();
221 cli->sendMsg(rc, "volume operation failed", true);
222 }
223
224 return 0;
225 }
226
StorageCmd()227 CommandListener::StorageCmd::StorageCmd() :
228 VoldCommand("storage") {
229 }
230
runCommand(SocketClient * cli,int argc,char ** argv)231 int CommandListener::StorageCmd::runCommand(SocketClient *cli,
232 int argc, char **argv) {
233 /* Guarantied to be initialized by vold's main() before the CommandListener is active */
234 extern struct fstab *fstab;
235
236 dumpArgs(argc, argv, -1);
237
238 if (argc < 2) {
239 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
240 return 0;
241 }
242
243 if (!strcmp(argv[1], "mountall")) {
244 if (argc != 2) {
245 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: mountall", false);
246 return 0;
247 }
248 fs_mgr_mount_all(fstab);
249 cli->sendMsg(ResponseCode::CommandOkay, "Mountall ran successfully", false);
250 return 0;
251 }
252 if (!strcmp(argv[1], "users")) {
253 DIR *dir;
254 struct dirent *de;
255
256 if (argc < 3) {
257 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument: user <mountpoint>", false);
258 return 0;
259 }
260 if (!(dir = opendir("/proc"))) {
261 cli->sendMsg(ResponseCode::OperationFailed, "Failed to open /proc", true);
262 return 0;
263 }
264
265 while ((de = readdir(dir))) {
266 int pid = Process::getPid(de->d_name);
267
268 if (pid < 0) {
269 continue;
270 }
271
272 char processName[255];
273 Process::getProcessName(pid, processName, sizeof(processName));
274
275 if (Process::checkFileDescriptorSymLinks(pid, argv[2]) ||
276 Process::checkFileMaps(pid, argv[2]) ||
277 Process::checkSymLink(pid, argv[2], "cwd") ||
278 Process::checkSymLink(pid, argv[2], "root") ||
279 Process::checkSymLink(pid, argv[2], "exe")) {
280
281 char msg[1024];
282 snprintf(msg, sizeof(msg), "%d %s", pid, processName);
283 cli->sendMsg(ResponseCode::StorageUsersListResult, msg, false);
284 }
285 }
286 closedir(dir);
287 cli->sendMsg(ResponseCode::CommandOkay, "Storage user list complete", false);
288 } else {
289 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown storage cmd", false);
290 }
291 return 0;
292 }
293
AsecCmd()294 CommandListener::AsecCmd::AsecCmd() :
295 VoldCommand("asec") {
296 }
297
listAsecsInDirectory(SocketClient * cli,const char * directory)298 void CommandListener::AsecCmd::listAsecsInDirectory(SocketClient *cli, const char *directory) {
299 DIR *d = opendir(directory);
300
301 if (!d) {
302 cli->sendMsg(ResponseCode::OperationFailed, "Failed to open asec dir", true);
303 return;
304 }
305
306 size_t dirent_len = offsetof(struct dirent, d_name) +
307 fpathconf(dirfd(d), _PC_NAME_MAX) + 1;
308
309 struct dirent *dent = (struct dirent *) malloc(dirent_len);
310 if (dent == NULL) {
311 cli->sendMsg(ResponseCode::OperationFailed, "Failed to allocate memory", true);
312 return;
313 }
314
315 struct dirent *result;
316
317 while (!readdir_r(d, dent, &result) && result != NULL) {
318 if (dent->d_name[0] == '.')
319 continue;
320 if (dent->d_type != DT_REG)
321 continue;
322 size_t name_len = strlen(dent->d_name);
323 if (name_len > 5 && name_len < 260 &&
324 !strcmp(&dent->d_name[name_len - 5], ".asec")) {
325 char id[255];
326 memset(id, 0, sizeof(id));
327 strlcpy(id, dent->d_name, name_len - 4);
328 cli->sendMsg(ResponseCode::AsecListResult, id, false);
329 }
330 }
331 closedir(d);
332
333 free(dent);
334 }
335
runCommand(SocketClient * cli,int argc,char ** argv)336 int CommandListener::AsecCmd::runCommand(SocketClient *cli,
337 int argc, char **argv) {
338 if (argc < 2) {
339 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
340 return 0;
341 }
342
343 VolumeManager *vm = VolumeManager::Instance();
344 int rc = 0;
345
346 if (!strcmp(argv[1], "list")) {
347 dumpArgs(argc, argv, -1);
348
349 listAsecsInDirectory(cli, Volume::SEC_ASECDIR_EXT);
350 listAsecsInDirectory(cli, Volume::SEC_ASECDIR_INT);
351 } else if (!strcmp(argv[1], "create")) {
352 dumpArgs(argc, argv, 5);
353 if (argc != 8) {
354 cli->sendMsg(ResponseCode::CommandSyntaxError,
355 "Usage: asec create <container-id> <size_mb> <fstype> <key> <ownerUid> "
356 "<isExternal>", false);
357 return 0;
358 }
359
360 unsigned int numSectors = (atoi(argv[3]) * (1024 * 1024)) / 512;
361 const bool isExternal = (atoi(argv[7]) == 1);
362 rc = vm->createAsec(argv[2], numSectors, argv[4], argv[5], atoi(argv[6]), isExternal);
363 } else if (!strcmp(argv[1], "resize")) {
364 dumpArgs(argc, argv, -1);
365 if (argc != 5) {
366 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec resize <container-id> <size_mb> <key>", false);
367 return 0;
368 }
369 unsigned int numSectors = (atoi(argv[3]) * (1024 * 1024)) / 512;
370 rc = vm->resizeAsec(argv[2], numSectors, argv[4]);
371 } else if (!strcmp(argv[1], "finalize")) {
372 dumpArgs(argc, argv, -1);
373 if (argc != 3) {
374 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec finalize <container-id>", false);
375 return 0;
376 }
377 rc = vm->finalizeAsec(argv[2]);
378 } else if (!strcmp(argv[1], "fixperms")) {
379 dumpArgs(argc, argv, -1);
380 if (argc != 5) {
381 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec fixperms <container-id> <gid> <filename>", false);
382 return 0;
383 }
384
385 char *endptr;
386 gid_t gid = (gid_t) strtoul(argv[3], &endptr, 10);
387 if (*endptr != '\0') {
388 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec fixperms <container-id> <gid> <filename>", false);
389 return 0;
390 }
391
392 rc = vm->fixupAsecPermissions(argv[2], gid, argv[4]);
393 } else if (!strcmp(argv[1], "destroy")) {
394 dumpArgs(argc, argv, -1);
395 if (argc < 3) {
396 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec destroy <container-id> [force]", false);
397 return 0;
398 }
399 bool force = false;
400 if (argc > 3 && !strcmp(argv[3], "force")) {
401 force = true;
402 }
403 rc = vm->destroyAsec(argv[2], force);
404 } else if (!strcmp(argv[1], "mount")) {
405 dumpArgs(argc, argv, 3);
406 if (argc != 6) {
407 cli->sendMsg(ResponseCode::CommandSyntaxError,
408 "Usage: asec mount <namespace-id> <key> <ownerUid> <ro|rw>", false);
409 return 0;
410 }
411 bool readOnly = true;
412 if (!strcmp(argv[5], "rw")) {
413 readOnly = false;
414 }
415 rc = vm->mountAsec(argv[2], argv[3], atoi(argv[4]), readOnly);
416 } else if (!strcmp(argv[1], "unmount")) {
417 dumpArgs(argc, argv, -1);
418 if (argc < 3) {
419 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec unmount <container-id> [force]", false);
420 return 0;
421 }
422 bool force = false;
423 if (argc > 3 && !strcmp(argv[3], "force")) {
424 force = true;
425 }
426 rc = vm->unmountAsec(argv[2], force);
427 } else if (!strcmp(argv[1], "rename")) {
428 dumpArgs(argc, argv, -1);
429 if (argc != 4) {
430 cli->sendMsg(ResponseCode::CommandSyntaxError,
431 "Usage: asec rename <old_id> <new_id>", false);
432 return 0;
433 }
434 rc = vm->renameAsec(argv[2], argv[3]);
435 } else if (!strcmp(argv[1], "path")) {
436 dumpArgs(argc, argv, -1);
437 if (argc != 3) {
438 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec path <container-id>", false);
439 return 0;
440 }
441 char path[255];
442
443 if (!(rc = vm->getAsecMountPath(argv[2], path, sizeof(path)))) {
444 cli->sendMsg(ResponseCode::AsecPathResult, path, false);
445 return 0;
446 }
447 } else if (!strcmp(argv[1], "fspath")) {
448 dumpArgs(argc, argv, -1);
449 if (argc != 3) {
450 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec fspath <container-id>", false);
451 return 0;
452 }
453 char path[255];
454
455 if (!(rc = vm->getAsecFilesystemPath(argv[2], path, sizeof(path)))) {
456 cli->sendMsg(ResponseCode::AsecPathResult, path, false);
457 return 0;
458 }
459 } else {
460 dumpArgs(argc, argv, -1);
461 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown asec cmd", false);
462 }
463
464 if (!rc) {
465 cli->sendMsg(ResponseCode::CommandOkay, "asec operation succeeded", false);
466 } else {
467 rc = ResponseCode::convertFromErrno();
468 cli->sendMsg(rc, "asec operation failed", true);
469 }
470
471 return 0;
472 }
473
ObbCmd()474 CommandListener::ObbCmd::ObbCmd() :
475 VoldCommand("obb") {
476 }
477
runCommand(SocketClient * cli,int argc,char ** argv)478 int CommandListener::ObbCmd::runCommand(SocketClient *cli,
479 int argc, char **argv) {
480 if (argc < 2) {
481 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
482 return 0;
483 }
484
485 VolumeManager *vm = VolumeManager::Instance();
486 int rc = 0;
487
488 if (!strcmp(argv[1], "list")) {
489 dumpArgs(argc, argv, -1);
490
491 rc = vm->listMountedObbs(cli);
492 } else if (!strcmp(argv[1], "mount")) {
493 dumpArgs(argc, argv, 3);
494 if (argc != 5) {
495 cli->sendMsg(ResponseCode::CommandSyntaxError,
496 "Usage: obb mount <filename> <key> <ownerGid>", false);
497 return 0;
498 }
499 rc = vm->mountObb(argv[2], argv[3], atoi(argv[4]));
500 } else if (!strcmp(argv[1], "unmount")) {
501 dumpArgs(argc, argv, -1);
502 if (argc < 3) {
503 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: obb unmount <source file> [force]", false);
504 return 0;
505 }
506 bool force = false;
507 if (argc > 3 && !strcmp(argv[3], "force")) {
508 force = true;
509 }
510 rc = vm->unmountObb(argv[2], force);
511 } else if (!strcmp(argv[1], "path")) {
512 dumpArgs(argc, argv, -1);
513 if (argc != 3) {
514 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: obb path <source file>", false);
515 return 0;
516 }
517 char path[255];
518
519 if (!(rc = vm->getObbMountPath(argv[2], path, sizeof(path)))) {
520 cli->sendMsg(ResponseCode::AsecPathResult, path, false);
521 return 0;
522 }
523 } else {
524 dumpArgs(argc, argv, -1);
525 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown obb cmd", false);
526 }
527
528 if (!rc) {
529 cli->sendMsg(ResponseCode::CommandOkay, "obb operation succeeded", false);
530 } else {
531 rc = ResponseCode::convertFromErrno();
532 cli->sendMsg(rc, "obb operation failed", true);
533 }
534
535 return 0;
536 }
537
CryptfsCmd()538 CommandListener::CryptfsCmd::CryptfsCmd() :
539 VoldCommand("cryptfs") {
540 }
541
getType(const char * type)542 static int getType(const char* type)
543 {
544 if (!strcmp(type, "default")) {
545 return CRYPT_TYPE_DEFAULT;
546 } else if (!strcmp(type, "password")) {
547 return CRYPT_TYPE_PASSWORD;
548 } else if (!strcmp(type, "pin")) {
549 return CRYPT_TYPE_PIN;
550 } else if (!strcmp(type, "pattern")) {
551 return CRYPT_TYPE_PATTERN;
552 } else {
553 return -1;
554 }
555 }
556
runCommand(SocketClient * cli,int argc,char ** argv)557 int CommandListener::CryptfsCmd::runCommand(SocketClient *cli,
558 int argc, char **argv) {
559 if ((cli->getUid() != 0) && (cli->getUid() != AID_SYSTEM)) {
560 cli->sendMsg(ResponseCode::CommandNoPermission, "No permission to run cryptfs commands", false);
561 return 0;
562 }
563
564 if (argc < 2) {
565 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
566 return 0;
567 }
568
569 int rc = 0;
570
571 if (!strcmp(argv[1], "checkpw")) {
572 if (argc != 3) {
573 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs checkpw <passwd>", false);
574 return 0;
575 }
576 dumpArgs(argc, argv, 2);
577 rc = cryptfs_check_passwd(argv[2]);
578 } else if (!strcmp(argv[1], "restart")) {
579 if (argc != 2) {
580 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs restart", false);
581 return 0;
582 }
583 dumpArgs(argc, argv, -1);
584 rc = cryptfs_restart();
585 } else if (!strcmp(argv[1], "cryptocomplete")) {
586 if (argc != 2) {
587 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs cryptocomplete", false);
588 return 0;
589 }
590 dumpArgs(argc, argv, -1);
591 rc = cryptfs_crypto_complete();
592 } else if (!strcmp(argv[1], "enablecrypto")) {
593 const char* syntax = "Usage: cryptfs enablecrypto <wipe|inplace> "
594 "default|password|pin|pattern [passwd]";
595 if ( (argc != 4 && argc != 5)
596 || (strcmp(argv[2], "wipe") && strcmp(argv[2], "inplace")) ) {
597 cli->sendMsg(ResponseCode::CommandSyntaxError, syntax, false);
598 return 0;
599 }
600 dumpArgs(argc, argv, 4);
601
602 int tries;
603 for (tries = 0; tries < 2; ++tries) {
604 int type = getType(argv[3]);
605 if (type == -1) {
606 cli->sendMsg(ResponseCode::CommandSyntaxError, syntax,
607 false);
608 return 0;
609 } else if (type == CRYPT_TYPE_DEFAULT) {
610 rc = cryptfs_enable_default(argv[2], /*allow_reboot*/false);
611 } else {
612 rc = cryptfs_enable(argv[2], type, argv[4],
613 /*allow_reboot*/false);
614 }
615
616 if (rc == 0) {
617 break;
618 } else if (tries == 0) {
619 Process::killProcessesWithOpenFiles(DATA_MNT_POINT, 2);
620 }
621 }
622 } else if (!strcmp(argv[1], "changepw")) {
623 const char* syntax = "Usage: cryptfs changepw "
624 "default|password|pin|pattern [newpasswd]";
625 const char* password;
626 if (argc == 3) {
627 password = "";
628 } else if (argc == 4) {
629 password = argv[3];
630 } else {
631 cli->sendMsg(ResponseCode::CommandSyntaxError, syntax, false);
632 return 0;
633 }
634 int type = getType(argv[2]);
635 if (type == -1) {
636 cli->sendMsg(ResponseCode::CommandSyntaxError, syntax, false);
637 return 0;
638 }
639 SLOGD("cryptfs changepw %s {}", argv[2]);
640 rc = cryptfs_changepw(type, password);
641 } else if (!strcmp(argv[1], "verifypw")) {
642 if (argc != 3) {
643 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs verifypw <passwd>", false);
644 return 0;
645 }
646 SLOGD("cryptfs verifypw {}");
647 rc = cryptfs_verify_passwd(argv[2]);
648 } else if (!strcmp(argv[1], "getfield")) {
649 char valbuf[PROPERTY_VALUE_MAX];
650
651 if (argc != 3) {
652 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs getfield <fieldname>", false);
653 return 0;
654 }
655 dumpArgs(argc, argv, -1);
656 rc = cryptfs_getfield(argv[2], valbuf, sizeof(valbuf));
657 if (rc == 0) {
658 cli->sendMsg(ResponseCode::CryptfsGetfieldResult, valbuf, false);
659 }
660 } else if (!strcmp(argv[1], "setfield")) {
661 if (argc != 4) {
662 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs setfield <fieldname> <value>", false);
663 return 0;
664 }
665 dumpArgs(argc, argv, -1);
666 rc = cryptfs_setfield(argv[2], argv[3]);
667 } else if (!strcmp(argv[1], "mountdefaultencrypted")) {
668 SLOGD("cryptfs mountdefaultencrypted");
669 dumpArgs(argc, argv, -1);
670 rc = cryptfs_mount_default_encrypted();
671 } else if (!strcmp(argv[1], "getpwtype")) {
672 SLOGD("cryptfs getpwtype");
673 dumpArgs(argc, argv, -1);
674 switch(cryptfs_get_password_type()) {
675 case CRYPT_TYPE_PASSWORD:
676 cli->sendMsg(ResponseCode::PasswordTypeResult, "password", false);
677 return 0;
678 case CRYPT_TYPE_PATTERN:
679 cli->sendMsg(ResponseCode::PasswordTypeResult, "pattern", false);
680 return 0;
681 case CRYPT_TYPE_PIN:
682 cli->sendMsg(ResponseCode::PasswordTypeResult, "pin", false);
683 return 0;
684 case CRYPT_TYPE_DEFAULT:
685 cli->sendMsg(ResponseCode::PasswordTypeResult, "default", false);
686 return 0;
687 default:
688 /** @TODO better error and make sure handled by callers */
689 cli->sendMsg(ResponseCode::OpFailedStorageNotFound, "Error", false);
690 return 0;
691 }
692 } else if (!strcmp(argv[1], "getpw")) {
693 SLOGD("cryptfs getpw");
694 dumpArgs(argc, argv, -1);
695 char* password = cryptfs_get_password();
696 if (password) {
697 cli->sendMsg(ResponseCode::CommandOkay, password, false);
698 return 0;
699 }
700 rc = -1;
701 } else if (!strcmp(argv[1], "clearpw")) {
702 SLOGD("cryptfs clearpw");
703 dumpArgs(argc, argv, -1);
704 cryptfs_clear_password();
705 rc = 0;
706 } else {
707 dumpArgs(argc, argv, -1);
708 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown cryptfs cmd", false);
709 return 0;
710 }
711
712 // Always report that the command succeeded and return the error code.
713 // The caller will check the return value to see what the error was.
714 char msg[255];
715 snprintf(msg, sizeof(msg), "%d", rc);
716 cli->sendMsg(ResponseCode::CommandOkay, msg, false);
717
718 return 0;
719 }
720
FstrimCmd()721 CommandListener::FstrimCmd::FstrimCmd() :
722 VoldCommand("fstrim") {
723 }
runCommand(SocketClient * cli,int argc,char ** argv)724 int CommandListener::FstrimCmd::runCommand(SocketClient *cli,
725 int argc, char **argv) {
726 if ((cli->getUid() != 0) && (cli->getUid() != AID_SYSTEM)) {
727 cli->sendMsg(ResponseCode::CommandNoPermission, "No permission to run fstrim commands", false);
728 return 0;
729 }
730
731 if (argc < 2) {
732 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
733 return 0;
734 }
735
736 int rc = 0;
737
738 if (!strcmp(argv[1], "dotrim")) {
739 if (argc != 2) {
740 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: fstrim dotrim", false);
741 return 0;
742 }
743 dumpArgs(argc, argv, -1);
744 rc = fstrim_filesystems(0);
745 } else if (!strcmp(argv[1], "dodtrim")) {
746 if (argc != 2) {
747 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: fstrim dodtrim", false);
748 return 0;
749 }
750 dumpArgs(argc, argv, -1);
751 rc = fstrim_filesystems(1); /* Do Deep Discard trim */
752 } else {
753 dumpArgs(argc, argv, -1);
754 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown fstrim cmd", false);
755 }
756
757 // Always report that the command succeeded and return the error code.
758 // The caller will check the return value to see what the error was.
759 char msg[255];
760 snprintf(msg, sizeof(msg), "%d", rc);
761 cli->sendMsg(ResponseCode::CommandOkay, msg, false);
762
763 return 0;
764 }
765