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 <string.h> 26 27 #define LOG_TAG "VoldCmdListener" 28 #include <cutils/log.h> 29 30 #include <sysutils/SocketClient.h> 31 #include <private/android_filesystem_config.h> 32 33 #include "CommandListener.h" 34 #include "VolumeManager.h" 35 #include "ResponseCode.h" 36 #include "Process.h" 37 #include "Xwarp.h" 38 #include "Loop.h" 39 #include "Devmapper.h" 40 #include "cryptfs.h" 41 #include "fstrim.h" 42 43 #define DUMP_ARGS 0 44 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 XwarpCmd()); 53 registerCmd(new CryptfsCmd()); 54 registerCmd(new FstrimCmd()); 55 } 56 57 void CommandListener::dumpArgs(int argc, char **argv, int argObscure) { 58 #if DUMP_ARGS 59 char buffer[4096]; 60 char *p = buffer; 61 62 memset(buffer, 0, sizeof(buffer)); 63 int i; 64 for (i = 0; i < argc; i++) { 65 unsigned int len = strlen(argv[i]) + 1; // Account for space 66 if (i == argObscure) { 67 len += 2; // Account for {} 68 } 69 if (((p - buffer) + len) < (sizeof(buffer)-1)) { 70 if (i == argObscure) { 71 *p++ = '{'; 72 *p++ = '}'; 73 *p++ = ' '; 74 continue; 75 } 76 strcpy(p, argv[i]); 77 p+= strlen(argv[i]); 78 if (i != (argc -1)) { 79 *p++ = ' '; 80 } 81 } 82 } 83 SLOGD("%s", buffer); 84 #endif 85 } 86 87 CommandListener::DumpCmd::DumpCmd() : 88 VoldCommand("dump") { 89 } 90 91 int CommandListener::DumpCmd::runCommand(SocketClient *cli, 92 int argc, char **argv) { 93 cli->sendMsg(0, "Dumping loop status", false); 94 if (Loop::dumpState(cli)) { 95 cli->sendMsg(ResponseCode::CommandOkay, "Loop dump failed", true); 96 } 97 cli->sendMsg(0, "Dumping DM status", false); 98 if (Devmapper::dumpState(cli)) { 99 cli->sendMsg(ResponseCode::CommandOkay, "Devmapper dump failed", true); 100 } 101 cli->sendMsg(0, "Dumping mounted filesystems", false); 102 FILE *fp = fopen("/proc/mounts", "r"); 103 if (fp) { 104 char line[1024]; 105 while (fgets(line, sizeof(line), fp)) { 106 line[strlen(line)-1] = '\0'; 107 cli->sendMsg(0, line, false);; 108 } 109 fclose(fp); 110 } 111 112 cli->sendMsg(ResponseCode::CommandOkay, "dump complete", false); 113 return 0; 114 } 115 116 117 CommandListener::VolumeCmd::VolumeCmd() : 118 VoldCommand("volume") { 119 } 120 121 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 return vm->listVolumes(cli); 135 } else if (!strcmp(argv[1], "debug")) { 136 if (argc != 3 || (argc == 3 && (strcmp(argv[2], "off") && strcmp(argv[2], "on")))) { 137 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume debug <off/on>", false); 138 return 0; 139 } 140 vm->setDebug(!strcmp(argv[2], "on") ? true : false); 141 } else if (!strcmp(argv[1], "mount")) { 142 if (argc != 3) { 143 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume mount <path>", false); 144 return 0; 145 } 146 rc = vm->mountVolume(argv[2]); 147 } else if (!strcmp(argv[1], "unmount")) { 148 if (argc < 3 || argc > 4 || 149 ((argc == 4 && strcmp(argv[3], "force")) && 150 (argc == 4 && strcmp(argv[3], "force_and_revert")))) { 151 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume unmount <path> [force|force_and_revert]", false); 152 return 0; 153 } 154 155 bool force = false; 156 bool revert = false; 157 if (argc >= 4 && !strcmp(argv[3], "force")) { 158 force = true; 159 } else if (argc >= 4 && !strcmp(argv[3], "force_and_revert")) { 160 force = true; 161 revert = true; 162 } 163 rc = vm->unmountVolume(argv[2], force, revert); 164 } else if (!strcmp(argv[1], "format")) { 165 if (argc < 3 || argc > 4 || 166 (argc == 4 && strcmp(argv[3], "wipe"))) { 167 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume format <path> [wipe]", false); 168 return 0; 169 } 170 bool wipe = false; 171 if (argc >= 4 && !strcmp(argv[3], "wipe")) { 172 wipe = true; 173 } 174 rc = vm->formatVolume(argv[2], wipe); 175 } else if (!strcmp(argv[1], "share")) { 176 if (argc != 4) { 177 cli->sendMsg(ResponseCode::CommandSyntaxError, 178 "Usage: volume share <path> <method>", false); 179 return 0; 180 } 181 rc = vm->shareVolume(argv[2], argv[3]); 182 } else if (!strcmp(argv[1], "unshare")) { 183 if (argc != 4) { 184 cli->sendMsg(ResponseCode::CommandSyntaxError, 185 "Usage: volume unshare <path> <method>", false); 186 return 0; 187 } 188 rc = vm->unshareVolume(argv[2], argv[3]); 189 } else if (!strcmp(argv[1], "shared")) { 190 bool enabled = false; 191 if (argc != 4) { 192 cli->sendMsg(ResponseCode::CommandSyntaxError, 193 "Usage: volume shared <path> <method>", false); 194 return 0; 195 } 196 197 if (vm->shareEnabled(argv[2], argv[3], &enabled)) { 198 cli->sendMsg( 199 ResponseCode::OperationFailed, "Failed to determine share enable state", true); 200 } else { 201 cli->sendMsg(ResponseCode::ShareEnabledResult, 202 (enabled ? "Share enabled" : "Share disabled"), false); 203 } 204 return 0; 205 } else if (!strcmp(argv[1], "mkdirs")) { 206 if (argc != 3) { 207 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume mkdirs <path>", false); 208 return 0; 209 } 210 rc = vm->mkdirs(argv[2]); 211 } else { 212 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown volume cmd", false); 213 } 214 215 if (!rc) { 216 cli->sendMsg(ResponseCode::CommandOkay, "volume operation succeeded", false); 217 } else { 218 int erno = errno; 219 rc = ResponseCode::convertFromErrno(); 220 cli->sendMsg(rc, "volume operation failed", true); 221 } 222 223 return 0; 224 } 225 226 CommandListener::StorageCmd::StorageCmd() : 227 VoldCommand("storage") { 228 } 229 230 int CommandListener::StorageCmd::runCommand(SocketClient *cli, 231 int argc, char **argv) { 232 dumpArgs(argc, argv, -1); 233 234 if (argc < 2) { 235 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false); 236 return 0; 237 } 238 239 if (!strcmp(argv[1], "users")) { 240 DIR *dir; 241 struct dirent *de; 242 243 if (!(dir = opendir("/proc"))) { 244 cli->sendMsg(ResponseCode::OperationFailed, "Failed to open /proc", true); 245 return 0; 246 } 247 248 while ((de = readdir(dir))) { 249 int pid = Process::getPid(de->d_name); 250 251 if (pid < 0) { 252 continue; 253 } 254 255 char processName[255]; 256 Process::getProcessName(pid, processName, sizeof(processName)); 257 258 if (Process::checkFileDescriptorSymLinks(pid, argv[2]) || 259 Process::checkFileMaps(pid, argv[2]) || 260 Process::checkSymLink(pid, argv[2], "cwd") || 261 Process::checkSymLink(pid, argv[2], "root") || 262 Process::checkSymLink(pid, argv[2], "exe")) { 263 264 char msg[1024]; 265 snprintf(msg, sizeof(msg), "%d %s", pid, processName); 266 cli->sendMsg(ResponseCode::StorageUsersListResult, msg, false); 267 } 268 } 269 closedir(dir); 270 cli->sendMsg(ResponseCode::CommandOkay, "Storage user list complete", false); 271 } else { 272 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown storage cmd", false); 273 } 274 return 0; 275 } 276 277 CommandListener::AsecCmd::AsecCmd() : 278 VoldCommand("asec") { 279 } 280 281 void CommandListener::AsecCmd::listAsecsInDirectory(SocketClient *cli, const char *directory) { 282 DIR *d = opendir(directory); 283 284 if (!d) { 285 cli->sendMsg(ResponseCode::OperationFailed, "Failed to open asec dir", true); 286 return; 287 } 288 289 size_t dirent_len = offsetof(struct dirent, d_name) + 290 fpathconf(dirfd(d), _PC_NAME_MAX) + 1; 291 292 struct dirent *dent = (struct dirent *) malloc(dirent_len); 293 if (dent == NULL) { 294 cli->sendMsg(ResponseCode::OperationFailed, "Failed to allocate memory", true); 295 return; 296 } 297 298 struct dirent *result; 299 300 while (!readdir_r(d, dent, &result) && result != NULL) { 301 if (dent->d_name[0] == '.') 302 continue; 303 if (dent->d_type != DT_REG) 304 continue; 305 size_t name_len = strlen(dent->d_name); 306 if (name_len > 5 && name_len < 260 && 307 !strcmp(&dent->d_name[name_len - 5], ".asec")) { 308 char id[255]; 309 memset(id, 0, sizeof(id)); 310 strlcpy(id, dent->d_name, name_len - 4); 311 cli->sendMsg(ResponseCode::AsecListResult, id, false); 312 } 313 } 314 closedir(d); 315 316 free(dent); 317 } 318 319 int CommandListener::AsecCmd::runCommand(SocketClient *cli, 320 int argc, char **argv) { 321 if (argc < 2) { 322 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false); 323 return 0; 324 } 325 326 VolumeManager *vm = VolumeManager::Instance(); 327 int rc = 0; 328 329 if (!strcmp(argv[1], "list")) { 330 dumpArgs(argc, argv, -1); 331 332 listAsecsInDirectory(cli, Volume::SEC_ASECDIR_EXT); 333 listAsecsInDirectory(cli, Volume::SEC_ASECDIR_INT); 334 } else if (!strcmp(argv[1], "create")) { 335 dumpArgs(argc, argv, 5); 336 if (argc != 8) { 337 cli->sendMsg(ResponseCode::CommandSyntaxError, 338 "Usage: asec create <container-id> <size_mb> <fstype> <key> <ownerUid> " 339 "<isExternal>", false); 340 return 0; 341 } 342 343 unsigned int numSectors = (atoi(argv[3]) * (1024 * 1024)) / 512; 344 const bool isExternal = (atoi(argv[7]) == 1); 345 rc = vm->createAsec(argv[2], numSectors, argv[4], argv[5], atoi(argv[6]), isExternal); 346 } else if (!strcmp(argv[1], "finalize")) { 347 dumpArgs(argc, argv, -1); 348 if (argc != 3) { 349 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec finalize <container-id>", false); 350 return 0; 351 } 352 rc = vm->finalizeAsec(argv[2]); 353 } else if (!strcmp(argv[1], "fixperms")) { 354 dumpArgs(argc, argv, -1); 355 if (argc != 5) { 356 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec fixperms <container-id> <gid> <filename>", false); 357 return 0; 358 } 359 360 char *endptr; 361 gid_t gid = (gid_t) strtoul(argv[3], &endptr, 10); 362 if (*endptr != '\0') { 363 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec fixperms <container-id> <gid> <filename>", false); 364 return 0; 365 } 366 367 rc = vm->fixupAsecPermissions(argv[2], gid, argv[4]); 368 } else if (!strcmp(argv[1], "destroy")) { 369 dumpArgs(argc, argv, -1); 370 if (argc < 3) { 371 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec destroy <container-id> [force]", false); 372 return 0; 373 } 374 bool force = false; 375 if (argc > 3 && !strcmp(argv[3], "force")) { 376 force = true; 377 } 378 rc = vm->destroyAsec(argv[2], force); 379 } else if (!strcmp(argv[1], "mount")) { 380 dumpArgs(argc, argv, 3); 381 if (argc != 5) { 382 cli->sendMsg(ResponseCode::CommandSyntaxError, 383 "Usage: asec mount <namespace-id> <key> <ownerUid>", false); 384 return 0; 385 } 386 rc = vm->mountAsec(argv[2], argv[3], atoi(argv[4])); 387 } else if (!strcmp(argv[1], "unmount")) { 388 dumpArgs(argc, argv, -1); 389 if (argc < 3) { 390 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec unmount <container-id> [force]", false); 391 return 0; 392 } 393 bool force = false; 394 if (argc > 3 && !strcmp(argv[3], "force")) { 395 force = true; 396 } 397 rc = vm->unmountAsec(argv[2], force); 398 } else if (!strcmp(argv[1], "rename")) { 399 dumpArgs(argc, argv, -1); 400 if (argc != 4) { 401 cli->sendMsg(ResponseCode::CommandSyntaxError, 402 "Usage: asec rename <old_id> <new_id>", false); 403 return 0; 404 } 405 rc = vm->renameAsec(argv[2], argv[3]); 406 } else if (!strcmp(argv[1], "path")) { 407 dumpArgs(argc, argv, -1); 408 if (argc != 3) { 409 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec path <container-id>", false); 410 return 0; 411 } 412 char path[255]; 413 414 if (!(rc = vm->getAsecMountPath(argv[2], path, sizeof(path)))) { 415 cli->sendMsg(ResponseCode::AsecPathResult, path, false); 416 return 0; 417 } 418 } else if (!strcmp(argv[1], "fspath")) { 419 dumpArgs(argc, argv, -1); 420 if (argc != 3) { 421 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: asec fspath <container-id>", false); 422 return 0; 423 } 424 char path[255]; 425 426 if (!(rc = vm->getAsecFilesystemPath(argv[2], path, sizeof(path)))) { 427 cli->sendMsg(ResponseCode::AsecPathResult, path, false); 428 return 0; 429 } 430 } else { 431 dumpArgs(argc, argv, -1); 432 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown asec cmd", false); 433 } 434 435 if (!rc) { 436 cli->sendMsg(ResponseCode::CommandOkay, "asec operation succeeded", false); 437 } else { 438 rc = ResponseCode::convertFromErrno(); 439 cli->sendMsg(rc, "asec operation failed", true); 440 } 441 442 return 0; 443 } 444 445 CommandListener::ObbCmd::ObbCmd() : 446 VoldCommand("obb") { 447 } 448 449 int CommandListener::ObbCmd::runCommand(SocketClient *cli, 450 int argc, char **argv) { 451 if (argc < 2) { 452 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false); 453 return 0; 454 } 455 456 VolumeManager *vm = VolumeManager::Instance(); 457 int rc = 0; 458 459 if (!strcmp(argv[1], "list")) { 460 dumpArgs(argc, argv, -1); 461 462 rc = vm->listMountedObbs(cli); 463 } else if (!strcmp(argv[1], "mount")) { 464 dumpArgs(argc, argv, 3); 465 if (argc != 5) { 466 cli->sendMsg(ResponseCode::CommandSyntaxError, 467 "Usage: obb mount <filename> <key> <ownerGid>", false); 468 return 0; 469 } 470 rc = vm->mountObb(argv[2], argv[3], atoi(argv[4])); 471 } else if (!strcmp(argv[1], "unmount")) { 472 dumpArgs(argc, argv, -1); 473 if (argc < 3) { 474 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: obb unmount <source file> [force]", false); 475 return 0; 476 } 477 bool force = false; 478 if (argc > 3 && !strcmp(argv[3], "force")) { 479 force = true; 480 } 481 rc = vm->unmountObb(argv[2], force); 482 } else if (!strcmp(argv[1], "path")) { 483 dumpArgs(argc, argv, -1); 484 if (argc != 3) { 485 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: obb path <source file>", false); 486 return 0; 487 } 488 char path[255]; 489 490 if (!(rc = vm->getObbMountPath(argv[2], path, sizeof(path)))) { 491 cli->sendMsg(ResponseCode::AsecPathResult, path, false); 492 return 0; 493 } 494 } else { 495 dumpArgs(argc, argv, -1); 496 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown obb cmd", false); 497 } 498 499 if (!rc) { 500 cli->sendMsg(ResponseCode::CommandOkay, "obb operation succeeded", false); 501 } else { 502 rc = ResponseCode::convertFromErrno(); 503 cli->sendMsg(rc, "obb operation failed", true); 504 } 505 506 return 0; 507 } 508 509 CommandListener::XwarpCmd::XwarpCmd() : 510 VoldCommand("xwarp") { 511 } 512 513 int CommandListener::XwarpCmd::runCommand(SocketClient *cli, 514 int argc, char **argv) { 515 if (argc < 2) { 516 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false); 517 return 0; 518 } 519 520 if (!strcmp(argv[1], "enable")) { 521 if (Xwarp::enable()) { 522 cli->sendMsg(ResponseCode::OperationFailed, "Failed to enable xwarp", true); 523 return 0; 524 } 525 526 cli->sendMsg(ResponseCode::CommandOkay, "Xwarp mirroring started", false); 527 } else if (!strcmp(argv[1], "disable")) { 528 if (Xwarp::disable()) { 529 cli->sendMsg(ResponseCode::OperationFailed, "Failed to disable xwarp", true); 530 return 0; 531 } 532 533 cli->sendMsg(ResponseCode::CommandOkay, "Xwarp disabled", false); 534 } else if (!strcmp(argv[1], "status")) { 535 char msg[255]; 536 bool r; 537 unsigned mirrorPos, maxSize; 538 539 if (Xwarp::status(&r, &mirrorPos, &maxSize)) { 540 cli->sendMsg(ResponseCode::OperationFailed, "Failed to get xwarp status", true); 541 return 0; 542 } 543 snprintf(msg, sizeof(msg), "%s %u %u", (r ? "ready" : "not-ready"), mirrorPos, maxSize); 544 cli->sendMsg(ResponseCode::XwarpStatusResult, msg, false); 545 } else { 546 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown storage cmd", false); 547 } 548 549 return 0; 550 } 551 552 CommandListener::CryptfsCmd::CryptfsCmd() : 553 VoldCommand("cryptfs") { 554 } 555 556 int CommandListener::CryptfsCmd::runCommand(SocketClient *cli, 557 int argc, char **argv) { 558 if ((cli->getUid() != 0) && (cli->getUid() != AID_SYSTEM)) { 559 cli->sendMsg(ResponseCode::CommandNoPermission, "No permission to run cryptfs commands", false); 560 return 0; 561 } 562 563 if (argc < 2) { 564 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false); 565 return 0; 566 } 567 568 int rc = 0; 569 570 if (!strcmp(argv[1], "checkpw")) { 571 if (argc != 3) { 572 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs checkpw <passwd>", false); 573 return 0; 574 } 575 dumpArgs(argc, argv, 2); 576 rc = cryptfs_check_passwd(argv[2]); 577 } else if (!strcmp(argv[1], "restart")) { 578 if (argc != 2) { 579 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs restart", false); 580 return 0; 581 } 582 dumpArgs(argc, argv, -1); 583 rc = cryptfs_restart(); 584 } else if (!strcmp(argv[1], "cryptocomplete")) { 585 if (argc != 2) { 586 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs cryptocomplete", false); 587 return 0; 588 } 589 dumpArgs(argc, argv, -1); 590 rc = cryptfs_crypto_complete(); 591 } else if (!strcmp(argv[1], "enablecrypto")) { 592 if ( (argc != 4) || (strcmp(argv[2], "wipe") && strcmp(argv[2], "inplace")) ) { 593 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs enablecrypto <wipe|inplace> <passwd>", false); 594 return 0; 595 } 596 dumpArgs(argc, argv, 3); 597 rc = cryptfs_enable(argv[2], argv[3]); 598 } else if (!strcmp(argv[1], "changepw")) { 599 if (argc != 3) { 600 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs changepw <newpasswd>", false); 601 return 0; 602 } 603 SLOGD("cryptfs changepw {}"); 604 rc = cryptfs_changepw(argv[2]); 605 } else if (!strcmp(argv[1], "verifypw")) { 606 if (argc != 3) { 607 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs verifypw <passwd>", false); 608 return 0; 609 } 610 SLOGD("cryptfs verifypw {}"); 611 rc = cryptfs_verify_passwd(argv[2]); 612 } else if (!strcmp(argv[1], "getfield")) { 613 char valbuf[PROPERTY_VALUE_MAX]; 614 615 if (argc != 3) { 616 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs getfield <fieldname>", false); 617 return 0; 618 } 619 dumpArgs(argc, argv, -1); 620 rc = cryptfs_getfield(argv[2], valbuf, sizeof(valbuf)); 621 if (rc == 0) { 622 cli->sendMsg(ResponseCode::CryptfsGetfieldResult, valbuf, false); 623 } 624 } else if (!strcmp(argv[1], "setfield")) { 625 if (argc != 4) { 626 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: cryptfs setfield <fieldname> <value>", false); 627 return 0; 628 } 629 dumpArgs(argc, argv, -1); 630 rc = cryptfs_setfield(argv[2], argv[3]); 631 } else { 632 dumpArgs(argc, argv, -1); 633 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown cryptfs cmd", false); 634 } 635 636 // Always report that the command succeeded and return the error code. 637 // The caller will check the return value to see what the error was. 638 char msg[255]; 639 snprintf(msg, sizeof(msg), "%d", rc); 640 cli->sendMsg(ResponseCode::CommandOkay, msg, false); 641 642 return 0; 643 } 644 645 CommandListener::FstrimCmd::FstrimCmd() : 646 VoldCommand("fstrim") { 647 } 648 int CommandListener::FstrimCmd::runCommand(SocketClient *cli, 649 int argc, char **argv) { 650 if ((cli->getUid() != 0) && (cli->getUid() != AID_SYSTEM)) { 651 cli->sendMsg(ResponseCode::CommandNoPermission, "No permission to run fstrim commands", false); 652 return 0; 653 } 654 655 if (argc < 2) { 656 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false); 657 return 0; 658 } 659 660 int rc = 0; 661 662 if (!strcmp(argv[1], "dotrim")) { 663 if (argc != 2) { 664 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: fstrim dotrim", false); 665 return 0; 666 } 667 dumpArgs(argc, argv, -1); 668 rc = fstrim_filesystems(); 669 } else { 670 dumpArgs(argc, argv, -1); 671 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown fstrim cmd", false); 672 } 673 674 // Always report that the command succeeded and return the error code. 675 // The caller will check the return value to see what the error was. 676 char msg[255]; 677 snprintf(msg, sizeof(msg), "%d", rc); 678 cli->sendMsg(ResponseCode::CommandOkay, msg, false); 679 680 return 0; 681 } 682
