MtpServer.cpp revision d239cb6e6898bdf2300e9038111727a9056c58ee
1/* 2 * Copyright (C) 2010 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 <stdio.h> 18#include <stdlib.h> 19#include <sys/types.h> 20#include <sys/ioctl.h> 21#include <sys/stat.h> 22#include <fcntl.h> 23#include <inttypes.h> 24#include <errno.h> 25#include <sys/stat.h> 26#include <dirent.h> 27 28#include <cutils/properties.h> 29 30#define LOG_TAG "MtpServer" 31 32#include "MtpDebug.h" 33#include "MtpDatabase.h" 34#include "MtpObjectInfo.h" 35#include "MtpProperty.h" 36#include "MtpServer.h" 37#include "MtpStorage.h" 38#include "MtpStringBuffer.h" 39 40#include <linux/usb/f_mtp.h> 41 42namespace android { 43 44static const MtpOperationCode kSupportedOperationCodes[] = { 45 MTP_OPERATION_GET_DEVICE_INFO, 46 MTP_OPERATION_OPEN_SESSION, 47 MTP_OPERATION_CLOSE_SESSION, 48 MTP_OPERATION_GET_STORAGE_IDS, 49 MTP_OPERATION_GET_STORAGE_INFO, 50 MTP_OPERATION_GET_NUM_OBJECTS, 51 MTP_OPERATION_GET_OBJECT_HANDLES, 52 MTP_OPERATION_GET_OBJECT_INFO, 53 MTP_OPERATION_GET_OBJECT, 54 MTP_OPERATION_GET_THUMB, 55 MTP_OPERATION_DELETE_OBJECT, 56 MTP_OPERATION_SEND_OBJECT_INFO, 57 MTP_OPERATION_SEND_OBJECT, 58// MTP_OPERATION_INITIATE_CAPTURE, 59// MTP_OPERATION_FORMAT_STORE, 60// MTP_OPERATION_RESET_DEVICE, 61// MTP_OPERATION_SELF_TEST, 62// MTP_OPERATION_SET_OBJECT_PROTECTION, 63// MTP_OPERATION_POWER_DOWN, 64 MTP_OPERATION_GET_DEVICE_PROP_DESC, 65 MTP_OPERATION_GET_DEVICE_PROP_VALUE, 66 MTP_OPERATION_SET_DEVICE_PROP_VALUE, 67 MTP_OPERATION_RESET_DEVICE_PROP_VALUE, 68// MTP_OPERATION_TERMINATE_OPEN_CAPTURE, 69// MTP_OPERATION_MOVE_OBJECT, 70// MTP_OPERATION_COPY_OBJECT, 71 MTP_OPERATION_GET_PARTIAL_OBJECT, 72// MTP_OPERATION_INITIATE_OPEN_CAPTURE, 73 MTP_OPERATION_GET_OBJECT_PROPS_SUPPORTED, 74 MTP_OPERATION_GET_OBJECT_PROP_DESC, 75 MTP_OPERATION_GET_OBJECT_PROP_VALUE, 76 MTP_OPERATION_SET_OBJECT_PROP_VALUE, 77 MTP_OPERATION_GET_OBJECT_PROP_LIST, 78// MTP_OPERATION_SET_OBJECT_PROP_LIST, 79// MTP_OPERATION_GET_INTERDEPENDENT_PROP_DESC, 80// MTP_OPERATION_SEND_OBJECT_PROP_LIST, 81 MTP_OPERATION_GET_OBJECT_REFERENCES, 82 MTP_OPERATION_SET_OBJECT_REFERENCES, 83// MTP_OPERATION_SKIP, 84 // Android extension for direct file IO 85 MTP_OPERATION_GET_PARTIAL_OBJECT_64, 86 MTP_OPERATION_SEND_PARTIAL_OBJECT, 87 MTP_OPERATION_TRUNCATE_OBJECT, 88 MTP_OPERATION_BEGIN_EDIT_OBJECT, 89 MTP_OPERATION_END_EDIT_OBJECT, 90}; 91 92static const MtpEventCode kSupportedEventCodes[] = { 93 MTP_EVENT_OBJECT_ADDED, 94 MTP_EVENT_OBJECT_REMOVED, 95 MTP_EVENT_STORE_ADDED, 96 MTP_EVENT_STORE_REMOVED, 97 MTP_EVENT_DEVICE_PROP_CHANGED, 98}; 99 100MtpServer::MtpServer(int fd, MtpDatabase* database, bool ptp, 101 int fileGroup, int filePerm, int directoryPerm) 102 : mFD(fd), 103 mDatabase(database), 104 mPtp(ptp), 105 mFileGroup(fileGroup), 106 mFilePermission(filePerm), 107 mDirectoryPermission(directoryPerm), 108 mSessionID(0), 109 mSessionOpen(false), 110 mSendObjectHandle(kInvalidObjectHandle), 111 mSendObjectFormat(0), 112 mSendObjectFileSize(0) 113{ 114} 115 116MtpServer::~MtpServer() { 117} 118 119void MtpServer::addStorage(MtpStorage* storage) { 120 Mutex::Autolock autoLock(mMutex); 121 122 mStorages.push(storage); 123 sendStoreAdded(storage->getStorageID()); 124} 125 126void MtpServer::removeStorage(MtpStorage* storage) { 127 Mutex::Autolock autoLock(mMutex); 128 129 for (size_t i = 0; i < mStorages.size(); i++) { 130 if (mStorages[i] == storage) { 131 mStorages.removeAt(i); 132 sendStoreRemoved(storage->getStorageID()); 133 break; 134 } 135 } 136} 137 138MtpStorage* MtpServer::getStorage(MtpStorageID id) { 139 if (id == 0) 140 return mStorages[0]; 141 for (size_t i = 0; i < mStorages.size(); i++) { 142 MtpStorage* storage = mStorages[i]; 143 if (storage->getStorageID() == id) 144 return storage; 145 } 146 return NULL; 147} 148 149bool MtpServer::hasStorage(MtpStorageID id) { 150 if (id == 0 || id == 0xFFFFFFFF) 151 return mStorages.size() > 0; 152 return (getStorage(id) != NULL); 153} 154 155void MtpServer::run() { 156 int fd = mFD; 157 158 ALOGV("MtpServer::run fd: %d\n", fd); 159 160 while (1) { 161 int ret = mRequest.read(fd); 162 if (ret < 0) { 163 ALOGV("request read returned %d, errno: %d", ret, errno); 164 if (errno == ECANCELED) { 165 // return to top of loop and wait for next command 166 continue; 167 } 168 break; 169 } 170 MtpOperationCode operation = mRequest.getOperationCode(); 171 MtpTransactionID transaction = mRequest.getTransactionID(); 172 173 ALOGV("operation: %s", MtpDebug::getOperationCodeName(operation)); 174 mRequest.dump(); 175 176 // FIXME need to generalize this 177 bool dataIn = (operation == MTP_OPERATION_SEND_OBJECT_INFO 178 || operation == MTP_OPERATION_SET_OBJECT_REFERENCES 179 || operation == MTP_OPERATION_SET_OBJECT_PROP_VALUE 180 || operation == MTP_OPERATION_SET_DEVICE_PROP_VALUE); 181 if (dataIn) { 182 int ret = mData.read(fd); 183 if (ret < 0) { 184 ALOGE("data read returned %d, errno: %d", ret, errno); 185 if (errno == ECANCELED) { 186 // return to top of loop and wait for next command 187 continue; 188 } 189 break; 190 } 191 ALOGV("received data:"); 192 mData.dump(); 193 } else { 194 mData.reset(); 195 } 196 197 if (handleRequest()) { 198 if (!dataIn && mData.hasData()) { 199 mData.setOperationCode(operation); 200 mData.setTransactionID(transaction); 201 ALOGV("sending data:"); 202 mData.dump(); 203 ret = mData.write(fd); 204 if (ret < 0) { 205 ALOGE("request write returned %d, errno: %d", ret, errno); 206 if (errno == ECANCELED) { 207 // return to top of loop and wait for next command 208 continue; 209 } 210 break; 211 } 212 } 213 214 mResponse.setTransactionID(transaction); 215 ALOGV("sending response %04X", mResponse.getResponseCode()); 216 ret = mResponse.write(fd); 217 mResponse.dump(); 218 if (ret < 0) { 219 ALOGE("request write returned %d, errno: %d", ret, errno); 220 if (errno == ECANCELED) { 221 // return to top of loop and wait for next command 222 continue; 223 } 224 break; 225 } 226 } else { 227 ALOGV("skipping response\n"); 228 } 229 } 230 231 // commit any open edits 232 int count = mObjectEditList.size(); 233 for (int i = 0; i < count; i++) { 234 ObjectEdit* edit = mObjectEditList[i]; 235 commitEdit(edit); 236 delete edit; 237 } 238 mObjectEditList.clear(); 239 240 if (mSessionOpen) 241 mDatabase->sessionEnded(); 242 close(fd); 243 mFD = -1; 244} 245 246void MtpServer::sendObjectAdded(MtpObjectHandle handle) { 247 ALOGV("sendObjectAdded %d\n", handle); 248 sendEvent(MTP_EVENT_OBJECT_ADDED, handle); 249} 250 251void MtpServer::sendObjectRemoved(MtpObjectHandle handle) { 252 ALOGV("sendObjectRemoved %d\n", handle); 253 sendEvent(MTP_EVENT_OBJECT_REMOVED, handle); 254} 255 256void MtpServer::sendStoreAdded(MtpStorageID id) { 257 ALOGV("sendStoreAdded %08X\n", id); 258 sendEvent(MTP_EVENT_STORE_ADDED, id); 259} 260 261void MtpServer::sendStoreRemoved(MtpStorageID id) { 262 ALOGV("sendStoreRemoved %08X\n", id); 263 sendEvent(MTP_EVENT_STORE_REMOVED, id); 264} 265 266void MtpServer::sendDevicePropertyChanged(MtpDeviceProperty property) { 267 ALOGV("sendDevicePropertyChanged %d\n", property); 268 sendEvent(MTP_EVENT_DEVICE_PROP_CHANGED, property); 269} 270 271void MtpServer::sendEvent(MtpEventCode code, uint32_t param1) { 272 if (mSessionOpen) { 273 mEvent.setEventCode(code); 274 mEvent.setTransactionID(mRequest.getTransactionID()); 275 mEvent.setParameter(1, param1); 276 int ret = mEvent.write(mFD); 277 ALOGV("mEvent.write returned %d\n", ret); 278 } 279} 280 281void MtpServer::addEditObject(MtpObjectHandle handle, MtpString& path, 282 uint64_t size, MtpObjectFormat format, int fd) { 283 ObjectEdit* edit = new ObjectEdit(handle, path, size, format, fd); 284 mObjectEditList.add(edit); 285} 286 287MtpServer::ObjectEdit* MtpServer::getEditObject(MtpObjectHandle handle) { 288 int count = mObjectEditList.size(); 289 for (int i = 0; i < count; i++) { 290 ObjectEdit* edit = mObjectEditList[i]; 291 if (edit->mHandle == handle) return edit; 292 } 293 return NULL; 294} 295 296void MtpServer::removeEditObject(MtpObjectHandle handle) { 297 int count = mObjectEditList.size(); 298 for (int i = 0; i < count; i++) { 299 ObjectEdit* edit = mObjectEditList[i]; 300 if (edit->mHandle == handle) { 301 delete edit; 302 mObjectEditList.removeAt(i); 303 return; 304 } 305 } 306 ALOGE("ObjectEdit not found in removeEditObject"); 307} 308 309void MtpServer::commitEdit(ObjectEdit* edit) { 310 mDatabase->endSendObject((const char *)edit->mPath, edit->mHandle, edit->mFormat, true); 311} 312 313 314bool MtpServer::handleRequest() { 315 Mutex::Autolock autoLock(mMutex); 316 317 MtpOperationCode operation = mRequest.getOperationCode(); 318 MtpResponseCode response; 319 320 mResponse.reset(); 321 322 if (mSendObjectHandle != kInvalidObjectHandle && operation != MTP_OPERATION_SEND_OBJECT) { 323 // FIXME - need to delete mSendObjectHandle from the database 324 ALOGE("expected SendObject after SendObjectInfo"); 325 mSendObjectHandle = kInvalidObjectHandle; 326 } 327 328 int containertype = mRequest.getContainerType(); 329 if (containertype != MTP_CONTAINER_TYPE_COMMAND) { 330 ALOGE("wrong container type %d", containertype); 331 return false; 332 } 333 334 ALOGV("got command %s (%x)", MtpDebug::getOperationCodeName(operation), operation); 335 336 switch (operation) { 337 case MTP_OPERATION_GET_DEVICE_INFO: 338 response = doGetDeviceInfo(); 339 break; 340 case MTP_OPERATION_OPEN_SESSION: 341 response = doOpenSession(); 342 break; 343 case MTP_OPERATION_CLOSE_SESSION: 344 response = doCloseSession(); 345 break; 346 case MTP_OPERATION_GET_STORAGE_IDS: 347 response = doGetStorageIDs(); 348 break; 349 case MTP_OPERATION_GET_STORAGE_INFO: 350 response = doGetStorageInfo(); 351 break; 352 case MTP_OPERATION_GET_OBJECT_PROPS_SUPPORTED: 353 response = doGetObjectPropsSupported(); 354 break; 355 case MTP_OPERATION_GET_OBJECT_HANDLES: 356 response = doGetObjectHandles(); 357 break; 358 case MTP_OPERATION_GET_NUM_OBJECTS: 359 response = doGetNumObjects(); 360 break; 361 case MTP_OPERATION_GET_OBJECT_REFERENCES: 362 response = doGetObjectReferences(); 363 break; 364 case MTP_OPERATION_SET_OBJECT_REFERENCES: 365 response = doSetObjectReferences(); 366 break; 367 case MTP_OPERATION_GET_OBJECT_PROP_VALUE: 368 response = doGetObjectPropValue(); 369 break; 370 case MTP_OPERATION_SET_OBJECT_PROP_VALUE: 371 response = doSetObjectPropValue(); 372 break; 373 case MTP_OPERATION_GET_DEVICE_PROP_VALUE: 374 response = doGetDevicePropValue(); 375 break; 376 case MTP_OPERATION_SET_DEVICE_PROP_VALUE: 377 response = doSetDevicePropValue(); 378 break; 379 case MTP_OPERATION_RESET_DEVICE_PROP_VALUE: 380 response = doResetDevicePropValue(); 381 break; 382 case MTP_OPERATION_GET_OBJECT_PROP_LIST: 383 response = doGetObjectPropList(); 384 break; 385 case MTP_OPERATION_GET_OBJECT_INFO: 386 response = doGetObjectInfo(); 387 break; 388 case MTP_OPERATION_GET_OBJECT: 389 response = doGetObject(); 390 break; 391 case MTP_OPERATION_GET_THUMB: 392 response = doGetThumb(); 393 break; 394 case MTP_OPERATION_GET_PARTIAL_OBJECT: 395 case MTP_OPERATION_GET_PARTIAL_OBJECT_64: 396 response = doGetPartialObject(operation); 397 break; 398 case MTP_OPERATION_SEND_OBJECT_INFO: 399 response = doSendObjectInfo(); 400 break; 401 case MTP_OPERATION_SEND_OBJECT: 402 response = doSendObject(); 403 break; 404 case MTP_OPERATION_DELETE_OBJECT: 405 response = doDeleteObject(); 406 break; 407 case MTP_OPERATION_GET_OBJECT_PROP_DESC: 408 response = doGetObjectPropDesc(); 409 break; 410 case MTP_OPERATION_GET_DEVICE_PROP_DESC: 411 response = doGetDevicePropDesc(); 412 break; 413 case MTP_OPERATION_SEND_PARTIAL_OBJECT: 414 response = doSendPartialObject(); 415 break; 416 case MTP_OPERATION_TRUNCATE_OBJECT: 417 response = doTruncateObject(); 418 break; 419 case MTP_OPERATION_BEGIN_EDIT_OBJECT: 420 response = doBeginEditObject(); 421 break; 422 case MTP_OPERATION_END_EDIT_OBJECT: 423 response = doEndEditObject(); 424 break; 425 default: 426 ALOGE("got unsupported command %s (%x)", 427 MtpDebug::getOperationCodeName(operation), operation); 428 response = MTP_RESPONSE_OPERATION_NOT_SUPPORTED; 429 break; 430 } 431 432 if (response == MTP_RESPONSE_TRANSACTION_CANCELLED) 433 return false; 434 mResponse.setResponseCode(response); 435 return true; 436} 437 438MtpResponseCode MtpServer::doGetDeviceInfo() { 439 MtpStringBuffer string; 440 char prop_value[PROPERTY_VALUE_MAX]; 441 442 MtpObjectFormatList* playbackFormats = mDatabase->getSupportedPlaybackFormats(); 443 MtpObjectFormatList* captureFormats = mDatabase->getSupportedCaptureFormats(); 444 MtpDevicePropertyList* deviceProperties = mDatabase->getSupportedDeviceProperties(); 445 446 // fill in device info 447 mData.putUInt16(MTP_STANDARD_VERSION); 448 if (mPtp) { 449 mData.putUInt32(0); 450 } else { 451 // MTP Vendor Extension ID 452 mData.putUInt32(6); 453 } 454 mData.putUInt16(MTP_STANDARD_VERSION); 455 if (mPtp) { 456 // no extensions 457 string.set(""); 458 } else { 459 // MTP extensions 460 string.set("microsoft.com: 1.0; android.com: 1.0;"); 461 } 462 mData.putString(string); // MTP Extensions 463 mData.putUInt16(0); //Functional Mode 464 mData.putAUInt16(kSupportedOperationCodes, 465 sizeof(kSupportedOperationCodes) / sizeof(uint16_t)); // Operations Supported 466 mData.putAUInt16(kSupportedEventCodes, 467 sizeof(kSupportedEventCodes) / sizeof(uint16_t)); // Events Supported 468 mData.putAUInt16(deviceProperties); // Device Properties Supported 469 mData.putAUInt16(captureFormats); // Capture Formats 470 mData.putAUInt16(playbackFormats); // Playback Formats 471 472 property_get("ro.product.manufacturer", prop_value, "unknown manufacturer"); 473 string.set(prop_value); 474 mData.putString(string); // Manufacturer 475 476 property_get("ro.product.model", prop_value, "MTP Device"); 477 string.set(prop_value); 478 mData.putString(string); // Model 479 string.set("1.0"); 480 mData.putString(string); // Device Version 481 482 property_get("ro.serialno", prop_value, "????????"); 483 string.set(prop_value); 484 mData.putString(string); // Serial Number 485 486 delete playbackFormats; 487 delete captureFormats; 488 delete deviceProperties; 489 490 return MTP_RESPONSE_OK; 491} 492 493MtpResponseCode MtpServer::doOpenSession() { 494 if (mSessionOpen) { 495 mResponse.setParameter(1, mSessionID); 496 return MTP_RESPONSE_SESSION_ALREADY_OPEN; 497 } 498 mSessionID = mRequest.getParameter(1); 499 mSessionOpen = true; 500 501 mDatabase->sessionStarted(); 502 503 return MTP_RESPONSE_OK; 504} 505 506MtpResponseCode MtpServer::doCloseSession() { 507 if (!mSessionOpen) 508 return MTP_RESPONSE_SESSION_NOT_OPEN; 509 mSessionID = 0; 510 mSessionOpen = false; 511 mDatabase->sessionEnded(); 512 return MTP_RESPONSE_OK; 513} 514 515MtpResponseCode MtpServer::doGetStorageIDs() { 516 if (!mSessionOpen) 517 return MTP_RESPONSE_SESSION_NOT_OPEN; 518 519 int count = mStorages.size(); 520 mData.putUInt32(count); 521 for (int i = 0; i < count; i++) 522 mData.putUInt32(mStorages[i]->getStorageID()); 523 524 return MTP_RESPONSE_OK; 525} 526 527MtpResponseCode MtpServer::doGetStorageInfo() { 528 MtpStringBuffer string; 529 530 if (!mSessionOpen) 531 return MTP_RESPONSE_SESSION_NOT_OPEN; 532 MtpStorageID id = mRequest.getParameter(1); 533 MtpStorage* storage = getStorage(id); 534 if (!storage) 535 return MTP_RESPONSE_INVALID_STORAGE_ID; 536 537 mData.putUInt16(storage->getType()); 538 mData.putUInt16(storage->getFileSystemType()); 539 mData.putUInt16(storage->getAccessCapability()); 540 mData.putUInt64(storage->getMaxCapacity()); 541 mData.putUInt64(storage->getFreeSpace()); 542 mData.putUInt32(1024*1024*1024); // Free Space in Objects 543 string.set(storage->getDescription()); 544 mData.putString(string); 545 mData.putEmptyString(); // Volume Identifier 546 547 return MTP_RESPONSE_OK; 548} 549 550MtpResponseCode MtpServer::doGetObjectPropsSupported() { 551 if (!mSessionOpen) 552 return MTP_RESPONSE_SESSION_NOT_OPEN; 553 MtpObjectFormat format = mRequest.getParameter(1); 554 MtpObjectPropertyList* properties = mDatabase->getSupportedObjectProperties(format); 555 mData.putAUInt16(properties); 556 delete properties; 557 return MTP_RESPONSE_OK; 558} 559 560MtpResponseCode MtpServer::doGetObjectHandles() { 561 if (!mSessionOpen) 562 return MTP_RESPONSE_SESSION_NOT_OPEN; 563 MtpStorageID storageID = mRequest.getParameter(1); // 0xFFFFFFFF for all storage 564 MtpObjectFormat format = mRequest.getParameter(2); // 0 for all formats 565 MtpObjectHandle parent = mRequest.getParameter(3); // 0xFFFFFFFF for objects with no parent 566 // 0x00000000 for all objects 567 568 if (!hasStorage(storageID)) 569 return MTP_RESPONSE_INVALID_STORAGE_ID; 570 571 MtpObjectHandleList* handles = mDatabase->getObjectList(storageID, format, parent); 572 mData.putAUInt32(handles); 573 delete handles; 574 return MTP_RESPONSE_OK; 575} 576 577MtpResponseCode MtpServer::doGetNumObjects() { 578 if (!mSessionOpen) 579 return MTP_RESPONSE_SESSION_NOT_OPEN; 580 MtpStorageID storageID = mRequest.getParameter(1); // 0xFFFFFFFF for all storage 581 MtpObjectFormat format = mRequest.getParameter(2); // 0 for all formats 582 MtpObjectHandle parent = mRequest.getParameter(3); // 0xFFFFFFFF for objects with no parent 583 // 0x00000000 for all objects 584 if (!hasStorage(storageID)) 585 return MTP_RESPONSE_INVALID_STORAGE_ID; 586 587 int count = mDatabase->getNumObjects(storageID, format, parent); 588 if (count >= 0) { 589 mResponse.setParameter(1, count); 590 return MTP_RESPONSE_OK; 591 } else { 592 mResponse.setParameter(1, 0); 593 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 594 } 595} 596 597MtpResponseCode MtpServer::doGetObjectReferences() { 598 if (!mSessionOpen) 599 return MTP_RESPONSE_SESSION_NOT_OPEN; 600 if (!hasStorage()) 601 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 602 MtpObjectHandle handle = mRequest.getParameter(1); 603 604 // FIXME - check for invalid object handle 605 MtpObjectHandleList* handles = mDatabase->getObjectReferences(handle); 606 if (handles) { 607 mData.putAUInt32(handles); 608 delete handles; 609 } else { 610 mData.putEmptyArray(); 611 } 612 return MTP_RESPONSE_OK; 613} 614 615MtpResponseCode MtpServer::doSetObjectReferences() { 616 if (!mSessionOpen) 617 return MTP_RESPONSE_SESSION_NOT_OPEN; 618 if (!hasStorage()) 619 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 620 MtpStorageID handle = mRequest.getParameter(1); 621 622 MtpObjectHandleList* references = mData.getAUInt32(); 623 MtpResponseCode result = mDatabase->setObjectReferences(handle, references); 624 delete references; 625 return result; 626} 627 628MtpResponseCode MtpServer::doGetObjectPropValue() { 629 if (!hasStorage()) 630 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 631 MtpObjectHandle handle = mRequest.getParameter(1); 632 MtpObjectProperty property = mRequest.getParameter(2); 633 ALOGV("GetObjectPropValue %d %s\n", handle, 634 MtpDebug::getObjectPropCodeName(property)); 635 636 return mDatabase->getObjectPropertyValue(handle, property, mData); 637} 638 639MtpResponseCode MtpServer::doSetObjectPropValue() { 640 if (!hasStorage()) 641 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 642 MtpObjectHandle handle = mRequest.getParameter(1); 643 MtpObjectProperty property = mRequest.getParameter(2); 644 ALOGV("SetObjectPropValue %d %s\n", handle, 645 MtpDebug::getObjectPropCodeName(property)); 646 647 return mDatabase->setObjectPropertyValue(handle, property, mData); 648} 649 650MtpResponseCode MtpServer::doGetDevicePropValue() { 651 MtpDeviceProperty property = mRequest.getParameter(1); 652 ALOGV("GetDevicePropValue %s\n", 653 MtpDebug::getDevicePropCodeName(property)); 654 655 return mDatabase->getDevicePropertyValue(property, mData); 656} 657 658MtpResponseCode MtpServer::doSetDevicePropValue() { 659 MtpDeviceProperty property = mRequest.getParameter(1); 660 ALOGV("SetDevicePropValue %s\n", 661 MtpDebug::getDevicePropCodeName(property)); 662 663 return mDatabase->setDevicePropertyValue(property, mData); 664} 665 666MtpResponseCode MtpServer::doResetDevicePropValue() { 667 MtpDeviceProperty property = mRequest.getParameter(1); 668 ALOGV("ResetDevicePropValue %s\n", 669 MtpDebug::getDevicePropCodeName(property)); 670 671 return mDatabase->resetDeviceProperty(property); 672} 673 674MtpResponseCode MtpServer::doGetObjectPropList() { 675 if (!hasStorage()) 676 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 677 678 MtpObjectHandle handle = mRequest.getParameter(1); 679 // use uint32_t so we can support 0xFFFFFFFF 680 uint32_t format = mRequest.getParameter(2); 681 uint32_t property = mRequest.getParameter(3); 682 int groupCode = mRequest.getParameter(4); 683 int depth = mRequest.getParameter(5); 684 ALOGV("GetObjectPropList %d format: %s property: %s group: %d depth: %d\n", 685 handle, MtpDebug::getFormatCodeName(format), 686 MtpDebug::getObjectPropCodeName(property), groupCode, depth); 687 688 return mDatabase->getObjectPropertyList(handle, format, property, groupCode, depth, mData); 689} 690 691MtpResponseCode MtpServer::doGetObjectInfo() { 692 if (!hasStorage()) 693 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 694 MtpObjectHandle handle = mRequest.getParameter(1); 695 MtpObjectInfo info(handle); 696 MtpResponseCode result = mDatabase->getObjectInfo(handle, info); 697 if (result == MTP_RESPONSE_OK) { 698 char date[20]; 699 700 mData.putUInt32(info.mStorageID); 701 mData.putUInt16(info.mFormat); 702 mData.putUInt16(info.mProtectionStatus); 703 704 // if object is being edited the database size may be out of date 705 uint32_t size = info.mCompressedSize; 706 ObjectEdit* edit = getEditObject(handle); 707 if (edit) 708 size = (edit->mSize > 0xFFFFFFFFLL ? 0xFFFFFFFF : (uint32_t)edit->mSize); 709 mData.putUInt32(size); 710 711 mData.putUInt16(info.mThumbFormat); 712 mData.putUInt32(info.mThumbCompressedSize); 713 mData.putUInt32(info.mThumbPixWidth); 714 mData.putUInt32(info.mThumbPixHeight); 715 mData.putUInt32(info.mImagePixWidth); 716 mData.putUInt32(info.mImagePixHeight); 717 mData.putUInt32(info.mImagePixDepth); 718 mData.putUInt32(info.mParent); 719 mData.putUInt16(info.mAssociationType); 720 mData.putUInt32(info.mAssociationDesc); 721 mData.putUInt32(info.mSequenceNumber); 722 mData.putString(info.mName); 723 formatDateTime(info.mDateCreated, date, sizeof(date)); 724 mData.putString(date); // date created 725 formatDateTime(info.mDateModified, date, sizeof(date)); 726 mData.putString(date); // date modified 727 mData.putEmptyString(); // keywords 728 } 729 return result; 730} 731 732MtpResponseCode MtpServer::doGetObject() { 733 if (!hasStorage()) 734 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 735 MtpObjectHandle handle = mRequest.getParameter(1); 736 MtpString pathBuf; 737 int64_t fileLength; 738 MtpObjectFormat format; 739 int result = mDatabase->getObjectFilePath(handle, pathBuf, fileLength, format); 740 if (result != MTP_RESPONSE_OK) 741 return result; 742 743 const char* filePath = (const char *)pathBuf; 744 mtp_file_range mfr; 745 mfr.fd = open(filePath, O_RDONLY); 746 if (mfr.fd < 0) { 747 return MTP_RESPONSE_GENERAL_ERROR; 748 } 749 mfr.offset = 0; 750 mfr.length = fileLength; 751 mfr.command = mRequest.getOperationCode(); 752 mfr.transaction_id = mRequest.getTransactionID(); 753 754 // then transfer the file 755 int ret = ioctl(mFD, MTP_SEND_FILE_WITH_HEADER, (unsigned long)&mfr); 756 ALOGV("MTP_SEND_FILE_WITH_HEADER returned %d\n", ret); 757 close(mfr.fd); 758 if (ret < 0) { 759 if (errno == ECANCELED) 760 return MTP_RESPONSE_TRANSACTION_CANCELLED; 761 else 762 return MTP_RESPONSE_GENERAL_ERROR; 763 } 764 return MTP_RESPONSE_OK; 765} 766 767MtpResponseCode MtpServer::doGetThumb() { 768 MtpObjectHandle handle = mRequest.getParameter(1); 769 size_t thumbSize; 770 void* thumb = mDatabase->getThumbnail(handle, thumbSize); 771 if (thumb) { 772 // send data 773 mData.setOperationCode(mRequest.getOperationCode()); 774 mData.setTransactionID(mRequest.getTransactionID()); 775 mData.writeData(mFD, thumb, thumbSize); 776 free(thumb); 777 return MTP_RESPONSE_OK; 778 } else { 779 return MTP_RESPONSE_GENERAL_ERROR; 780 } 781} 782 783MtpResponseCode MtpServer::doGetPartialObject(MtpOperationCode operation) { 784 if (!hasStorage()) 785 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 786 MtpObjectHandle handle = mRequest.getParameter(1); 787 uint64_t offset; 788 uint32_t length; 789 offset = mRequest.getParameter(2); 790 if (operation == MTP_OPERATION_GET_PARTIAL_OBJECT_64) { 791 // android extension with 64 bit offset 792 uint64_t offset2 = mRequest.getParameter(3); 793 offset = offset | (offset2 << 32); 794 length = mRequest.getParameter(4); 795 } else { 796 // standard GetPartialObject 797 length = mRequest.getParameter(3); 798 } 799 MtpString pathBuf; 800 int64_t fileLength; 801 MtpObjectFormat format; 802 int result = mDatabase->getObjectFilePath(handle, pathBuf, fileLength, format); 803 if (result != MTP_RESPONSE_OK) 804 return result; 805 if (offset + length > (uint64_t)fileLength) 806 length = fileLength - offset; 807 808 const char* filePath = (const char *)pathBuf; 809 mtp_file_range mfr; 810 mfr.fd = open(filePath, O_RDONLY); 811 if (mfr.fd < 0) { 812 return MTP_RESPONSE_GENERAL_ERROR; 813 } 814 mfr.offset = offset; 815 mfr.length = length; 816 mfr.command = mRequest.getOperationCode(); 817 mfr.transaction_id = mRequest.getTransactionID(); 818 mResponse.setParameter(1, length); 819 820 // transfer the file 821 int ret = ioctl(mFD, MTP_SEND_FILE_WITH_HEADER, (unsigned long)&mfr); 822 ALOGV("MTP_SEND_FILE_WITH_HEADER returned %d\n", ret); 823 close(mfr.fd); 824 if (ret < 0) { 825 if (errno == ECANCELED) 826 return MTP_RESPONSE_TRANSACTION_CANCELLED; 827 else 828 return MTP_RESPONSE_GENERAL_ERROR; 829 } 830 return MTP_RESPONSE_OK; 831} 832 833MtpResponseCode MtpServer::doSendObjectInfo() { 834 MtpString path; 835 MtpStorageID storageID = mRequest.getParameter(1); 836 MtpStorage* storage = getStorage(storageID); 837 MtpObjectHandle parent = mRequest.getParameter(2); 838 if (!storage) 839 return MTP_RESPONSE_INVALID_STORAGE_ID; 840 841 // special case the root 842 if (parent == MTP_PARENT_ROOT) { 843 path = storage->getPath(); 844 parent = 0; 845 } else { 846 int64_t length; 847 MtpObjectFormat format; 848 int result = mDatabase->getObjectFilePath(parent, path, length, format); 849 if (result != MTP_RESPONSE_OK) 850 return result; 851 if (format != MTP_FORMAT_ASSOCIATION) 852 return MTP_RESPONSE_INVALID_PARENT_OBJECT; 853 } 854 855 // read only the fields we need 856 mData.getUInt32(); // storage ID 857 MtpObjectFormat format = mData.getUInt16(); 858 mData.getUInt16(); // protection status 859 mSendObjectFileSize = mData.getUInt32(); 860 mData.getUInt16(); // thumb format 861 mData.getUInt32(); // thumb compressed size 862 mData.getUInt32(); // thumb pix width 863 mData.getUInt32(); // thumb pix height 864 mData.getUInt32(); // image pix width 865 mData.getUInt32(); // image pix height 866 mData.getUInt32(); // image bit depth 867 mData.getUInt32(); // parent 868 uint16_t associationType = mData.getUInt16(); 869 uint32_t associationDesc = mData.getUInt32(); // association desc 870 mData.getUInt32(); // sequence number 871 MtpStringBuffer name, created, modified; 872 mData.getString(name); // file name 873 mData.getString(created); // date created 874 mData.getString(modified); // date modified 875 // keywords follow 876 877 ALOGV("name: %s format: %04X\n", (const char *)name, format); 878 time_t modifiedTime; 879 if (!parseDateTime(modified, modifiedTime)) 880 modifiedTime = 0; 881 882 if (path[path.size() - 1] != '/') 883 path += "/"; 884 path += (const char *)name; 885 886 // check space first 887 if (mSendObjectFileSize > storage->getFreeSpace()) 888 return MTP_RESPONSE_STORAGE_FULL; 889 uint64_t maxFileSize = storage->getMaxFileSize(); 890 // check storage max file size 891 if (maxFileSize != 0) { 892 // if mSendObjectFileSize is 0xFFFFFFFF, then all we know is the file size 893 // is >= 0xFFFFFFFF 894 if (mSendObjectFileSize > maxFileSize || mSendObjectFileSize == 0xFFFFFFFF) 895 return MTP_RESPONSE_OBJECT_TOO_LARGE; 896 } 897 898 ALOGD("path: %s parent: %d storageID: %08X", (const char*)path, parent, storageID); 899 MtpObjectHandle handle = mDatabase->beginSendObject((const char*)path, 900 format, parent, storageID, mSendObjectFileSize, modifiedTime); 901 if (handle == kInvalidObjectHandle) { 902 return MTP_RESPONSE_GENERAL_ERROR; 903 } 904 905 if (format == MTP_FORMAT_ASSOCIATION) { 906 mode_t mask = umask(0); 907 int ret = mkdir((const char *)path, mDirectoryPermission); 908 umask(mask); 909 if (ret && ret != -EEXIST) 910 return MTP_RESPONSE_GENERAL_ERROR; 911 chown((const char *)path, getuid(), mFileGroup); 912 913 // SendObject does not get sent for directories, so call endSendObject here instead 914 mDatabase->endSendObject(path, handle, MTP_FORMAT_ASSOCIATION, MTP_RESPONSE_OK); 915 } else { 916 mSendObjectFilePath = path; 917 // save the handle for the SendObject call, which should follow 918 mSendObjectHandle = handle; 919 mSendObjectFormat = format; 920 } 921 922 mResponse.setParameter(1, storageID); 923 mResponse.setParameter(2, parent); 924 mResponse.setParameter(3, handle); 925 926 return MTP_RESPONSE_OK; 927} 928 929MtpResponseCode MtpServer::doSendObject() { 930 if (!hasStorage()) 931 return MTP_RESPONSE_GENERAL_ERROR; 932 MtpResponseCode result = MTP_RESPONSE_OK; 933 mode_t mask; 934 int ret, initialData; 935 936 if (mSendObjectHandle == kInvalidObjectHandle) { 937 ALOGE("Expected SendObjectInfo before SendObject"); 938 result = MTP_RESPONSE_NO_VALID_OBJECT_INFO; 939 goto done; 940 } 941 942 // read the header, and possibly some data 943 ret = mData.read(mFD); 944 if (ret < MTP_CONTAINER_HEADER_SIZE) { 945 result = MTP_RESPONSE_GENERAL_ERROR; 946 goto done; 947 } 948 initialData = ret - MTP_CONTAINER_HEADER_SIZE; 949 950 mtp_file_range mfr; 951 mfr.fd = open(mSendObjectFilePath, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR); 952 if (mfr.fd < 0) { 953 result = MTP_RESPONSE_GENERAL_ERROR; 954 goto done; 955 } 956 fchown(mfr.fd, getuid(), mFileGroup); 957 // set permissions 958 mask = umask(0); 959 fchmod(mfr.fd, mFilePermission); 960 umask(mask); 961 962 if (initialData > 0) { 963 ret = write(mfr.fd, mData.getData(), initialData); 964 } 965 966 if (ret < 0) { 967 ALOGE("failed to write initial data"); 968 result = MTP_RESPONSE_GENERAL_ERROR; 969 } else { 970 if (mSendObjectFileSize - initialData > 0) { 971 mfr.offset = initialData; 972 if (mSendObjectFileSize == 0xFFFFFFFF) { 973 // tell driver to read until it receives a short packet 974 mfr.length = 0xFFFFFFFF; 975 } else { 976 mfr.length = mSendObjectFileSize - initialData; 977 } 978 979 ALOGV("receiving %s\n", (const char *)mSendObjectFilePath); 980 // transfer the file 981 ret = ioctl(mFD, MTP_RECEIVE_FILE, (unsigned long)&mfr); 982 ALOGV("MTP_RECEIVE_FILE returned %d\n", ret); 983 } 984 } 985 close(mfr.fd); 986 987 if (ret < 0) { 988 unlink(mSendObjectFilePath); 989 if (errno == ECANCELED) 990 result = MTP_RESPONSE_TRANSACTION_CANCELLED; 991 else 992 result = MTP_RESPONSE_GENERAL_ERROR; 993 } 994 995done: 996 // reset so we don't attempt to send the data back 997 mData.reset(); 998 999 mDatabase->endSendObject(mSendObjectFilePath, mSendObjectHandle, mSendObjectFormat, 1000 result == MTP_RESPONSE_OK); 1001 mSendObjectHandle = kInvalidObjectHandle; 1002 mSendObjectFormat = 0; 1003 return result; 1004} 1005 1006static void deleteRecursive(const char* path) { 1007 char pathbuf[PATH_MAX]; 1008 size_t pathLength = strlen(path); 1009 if (pathLength >= sizeof(pathbuf) - 1) { 1010 ALOGE("path too long: %s\n", path); 1011 } 1012 strcpy(pathbuf, path); 1013 if (pathbuf[pathLength - 1] != '/') { 1014 pathbuf[pathLength++] = '/'; 1015 } 1016 char* fileSpot = pathbuf + pathLength; 1017 int pathRemaining = sizeof(pathbuf) - pathLength - 1; 1018 1019 DIR* dir = opendir(path); 1020 if (!dir) { 1021 ALOGE("opendir %s failed: %s", path, strerror(errno)); 1022 return; 1023 } 1024 1025 struct dirent* entry; 1026 while ((entry = readdir(dir))) { 1027 const char* name = entry->d_name; 1028 1029 // ignore "." and ".." 1030 if (name[0] == '.' && (name[1] == 0 || (name[1] == '.' && name[2] == 0))) { 1031 continue; 1032 } 1033 1034 int nameLength = strlen(name); 1035 if (nameLength > pathRemaining) { 1036 ALOGE("path %s/%s too long\n", path, name); 1037 continue; 1038 } 1039 strcpy(fileSpot, name); 1040 1041 int type = entry->d_type; 1042 if (entry->d_type == DT_DIR) { 1043 deleteRecursive(pathbuf); 1044 rmdir(pathbuf); 1045 } else { 1046 unlink(pathbuf); 1047 } 1048 } 1049 closedir(dir); 1050} 1051 1052static void deletePath(const char* path) { 1053 struct stat statbuf; 1054 if (stat(path, &statbuf) == 0) { 1055 if (S_ISDIR(statbuf.st_mode)) { 1056 deleteRecursive(path); 1057 rmdir(path); 1058 } else { 1059 unlink(path); 1060 } 1061 } else { 1062 ALOGE("deletePath stat failed for %s: %s", path, strerror(errno)); 1063 } 1064} 1065 1066MtpResponseCode MtpServer::doDeleteObject() { 1067 if (!hasStorage()) 1068 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 1069 MtpObjectHandle handle = mRequest.getParameter(1); 1070 MtpObjectFormat format = mRequest.getParameter(2); 1071 // FIXME - support deleting all objects if handle is 0xFFFFFFFF 1072 // FIXME - implement deleting objects by format 1073 1074 MtpString filePath; 1075 int64_t fileLength; 1076 int result = mDatabase->getObjectFilePath(handle, filePath, fileLength, format); 1077 if (result == MTP_RESPONSE_OK) { 1078 ALOGV("deleting %s", (const char *)filePath); 1079 result = mDatabase->deleteFile(handle); 1080 // Don't delete the actual files unless the database deletion is allowed 1081 if (result == MTP_RESPONSE_OK) { 1082 deletePath((const char *)filePath); 1083 } 1084 } 1085 1086 return result; 1087} 1088 1089MtpResponseCode MtpServer::doGetObjectPropDesc() { 1090 MtpObjectProperty propCode = mRequest.getParameter(1); 1091 MtpObjectFormat format = mRequest.getParameter(2); 1092 ALOGV("GetObjectPropDesc %s %s\n", MtpDebug::getObjectPropCodeName(propCode), 1093 MtpDebug::getFormatCodeName(format)); 1094 MtpProperty* property = mDatabase->getObjectPropertyDesc(propCode, format); 1095 if (!property) 1096 return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED; 1097 property->write(mData); 1098 delete property; 1099 return MTP_RESPONSE_OK; 1100} 1101 1102MtpResponseCode MtpServer::doGetDevicePropDesc() { 1103 MtpDeviceProperty propCode = mRequest.getParameter(1); 1104 ALOGV("GetDevicePropDesc %s\n", MtpDebug::getDevicePropCodeName(propCode)); 1105 MtpProperty* property = mDatabase->getDevicePropertyDesc(propCode); 1106 if (!property) 1107 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 1108 property->write(mData); 1109 delete property; 1110 return MTP_RESPONSE_OK; 1111} 1112 1113MtpResponseCode MtpServer::doSendPartialObject() { 1114 if (!hasStorage()) 1115 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 1116 MtpObjectHandle handle = mRequest.getParameter(1); 1117 uint64_t offset = mRequest.getParameter(2); 1118 uint64_t offset2 = mRequest.getParameter(3); 1119 offset = offset | (offset2 << 32); 1120 uint32_t length = mRequest.getParameter(4); 1121 1122 ObjectEdit* edit = getEditObject(handle); 1123 if (!edit) { 1124 ALOGE("object not open for edit in doSendPartialObject"); 1125 return MTP_RESPONSE_GENERAL_ERROR; 1126 } 1127 1128 // can't start writing past the end of the file 1129 if (offset > edit->mSize) { 1130 ALOGD("writing past end of object, offset: %" PRIu64 ", edit->mSize: %" PRIu64, 1131 offset, edit->mSize); 1132 return MTP_RESPONSE_GENERAL_ERROR; 1133 } 1134 1135 const char* filePath = (const char *)edit->mPath; 1136 ALOGV("receiving partial %s %" PRIu64 " %" PRIu32, filePath, offset, length); 1137 1138 // read the header, and possibly some data 1139 int ret = mData.read(mFD); 1140 if (ret < MTP_CONTAINER_HEADER_SIZE) 1141 return MTP_RESPONSE_GENERAL_ERROR; 1142 int initialData = ret - MTP_CONTAINER_HEADER_SIZE; 1143 1144 if (initialData > 0) { 1145 ret = pwrite(edit->mFD, mData.getData(), initialData, offset); 1146 offset += initialData; 1147 length -= initialData; 1148 } 1149 1150 if (ret < 0) { 1151 ALOGE("failed to write initial data"); 1152 } else { 1153 if (length > 0) { 1154 mtp_file_range mfr; 1155 mfr.fd = edit->mFD; 1156 mfr.offset = offset; 1157 mfr.length = length; 1158 1159 // transfer the file 1160 ret = ioctl(mFD, MTP_RECEIVE_FILE, (unsigned long)&mfr); 1161 ALOGV("MTP_RECEIVE_FILE returned %d", ret); 1162 } 1163 } 1164 if (ret < 0) { 1165 mResponse.setParameter(1, 0); 1166 if (errno == ECANCELED) 1167 return MTP_RESPONSE_TRANSACTION_CANCELLED; 1168 else 1169 return MTP_RESPONSE_GENERAL_ERROR; 1170 } 1171 1172 // reset so we don't attempt to send this back 1173 mData.reset(); 1174 mResponse.setParameter(1, length); 1175 uint64_t end = offset + length; 1176 if (end > edit->mSize) { 1177 edit->mSize = end; 1178 } 1179 return MTP_RESPONSE_OK; 1180} 1181 1182MtpResponseCode MtpServer::doTruncateObject() { 1183 MtpObjectHandle handle = mRequest.getParameter(1); 1184 ObjectEdit* edit = getEditObject(handle); 1185 if (!edit) { 1186 ALOGE("object not open for edit in doTruncateObject"); 1187 return MTP_RESPONSE_GENERAL_ERROR; 1188 } 1189 1190 uint64_t offset = mRequest.getParameter(2); 1191 uint64_t offset2 = mRequest.getParameter(3); 1192 offset |= (offset2 << 32); 1193 if (ftruncate(edit->mFD, offset) != 0) { 1194 return MTP_RESPONSE_GENERAL_ERROR; 1195 } else { 1196 edit->mSize = offset; 1197 return MTP_RESPONSE_OK; 1198 } 1199} 1200 1201MtpResponseCode MtpServer::doBeginEditObject() { 1202 MtpObjectHandle handle = mRequest.getParameter(1); 1203 if (getEditObject(handle)) { 1204 ALOGE("object already open for edit in doBeginEditObject"); 1205 return MTP_RESPONSE_GENERAL_ERROR; 1206 } 1207 1208 MtpString path; 1209 int64_t fileLength; 1210 MtpObjectFormat format; 1211 int result = mDatabase->getObjectFilePath(handle, path, fileLength, format); 1212 if (result != MTP_RESPONSE_OK) 1213 return result; 1214 1215 int fd = open((const char *)path, O_RDWR | O_EXCL); 1216 if (fd < 0) { 1217 ALOGE("open failed for %s in doBeginEditObject (%d)", (const char *)path, errno); 1218 return MTP_RESPONSE_GENERAL_ERROR; 1219 } 1220 1221 addEditObject(handle, path, fileLength, format, fd); 1222 return MTP_RESPONSE_OK; 1223} 1224 1225MtpResponseCode MtpServer::doEndEditObject() { 1226 MtpObjectHandle handle = mRequest.getParameter(1); 1227 ObjectEdit* edit = getEditObject(handle); 1228 if (!edit) { 1229 ALOGE("object not open for edit in doEndEditObject"); 1230 return MTP_RESPONSE_GENERAL_ERROR; 1231 } 1232 1233 commitEdit(edit); 1234 removeEditObject(handle); 1235 return MTP_RESPONSE_OK; 1236} 1237 1238} // namespace android 1239