| /* |
| * Copyright (C) 2010 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 <stdio.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/ioctl.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <dirent.h> |
| |
| #include <cutils/properties.h> |
| |
| #define LOG_TAG "MtpServer" |
| |
| #include "MtpDebug.h" |
| #include "MtpDatabase.h" |
| #include "MtpObjectInfo.h" |
| #include "MtpProperty.h" |
| #include "MtpServer.h" |
| #include "MtpStorage.h" |
| #include "MtpStringBuffer.h" |
| |
| #include <linux/usb/f_mtp.h> |
| |
| namespace android { |
| |
| static const MtpOperationCode kSupportedOperationCodes[] = { |
| MTP_OPERATION_GET_DEVICE_INFO, |
| MTP_OPERATION_OPEN_SESSION, |
| MTP_OPERATION_CLOSE_SESSION, |
| MTP_OPERATION_GET_STORAGE_IDS, |
| MTP_OPERATION_GET_STORAGE_INFO, |
| MTP_OPERATION_GET_NUM_OBJECTS, |
| MTP_OPERATION_GET_OBJECT_HANDLES, |
| MTP_OPERATION_GET_OBJECT_INFO, |
| MTP_OPERATION_GET_OBJECT, |
| MTP_OPERATION_GET_THUMB, |
| MTP_OPERATION_DELETE_OBJECT, |
| MTP_OPERATION_SEND_OBJECT_INFO, |
| MTP_OPERATION_SEND_OBJECT, |
| // MTP_OPERATION_INITIATE_CAPTURE, |
| // MTP_OPERATION_FORMAT_STORE, |
| // MTP_OPERATION_RESET_DEVICE, |
| // MTP_OPERATION_SELF_TEST, |
| // MTP_OPERATION_SET_OBJECT_PROTECTION, |
| // MTP_OPERATION_POWER_DOWN, |
| MTP_OPERATION_GET_DEVICE_PROP_DESC, |
| MTP_OPERATION_GET_DEVICE_PROP_VALUE, |
| MTP_OPERATION_SET_DEVICE_PROP_VALUE, |
| MTP_OPERATION_RESET_DEVICE_PROP_VALUE, |
| // MTP_OPERATION_TERMINATE_OPEN_CAPTURE, |
| // MTP_OPERATION_MOVE_OBJECT, |
| // MTP_OPERATION_COPY_OBJECT, |
| MTP_OPERATION_GET_PARTIAL_OBJECT, |
| // MTP_OPERATION_INITIATE_OPEN_CAPTURE, |
| MTP_OPERATION_GET_OBJECT_PROPS_SUPPORTED, |
| MTP_OPERATION_GET_OBJECT_PROP_DESC, |
| MTP_OPERATION_GET_OBJECT_PROP_VALUE, |
| MTP_OPERATION_SET_OBJECT_PROP_VALUE, |
| MTP_OPERATION_GET_OBJECT_PROP_LIST, |
| // MTP_OPERATION_SET_OBJECT_PROP_LIST, |
| // MTP_OPERATION_GET_INTERDEPENDENT_PROP_DESC, |
| // MTP_OPERATION_SEND_OBJECT_PROP_LIST, |
| MTP_OPERATION_GET_OBJECT_REFERENCES, |
| MTP_OPERATION_SET_OBJECT_REFERENCES, |
| // MTP_OPERATION_SKIP, |
| // Android extension for direct file IO |
| MTP_OPERATION_GET_PARTIAL_OBJECT_64, |
| MTP_OPERATION_SEND_PARTIAL_OBJECT, |
| MTP_OPERATION_TRUNCATE_OBJECT, |
| MTP_OPERATION_BEGIN_EDIT_OBJECT, |
| MTP_OPERATION_END_EDIT_OBJECT, |
| }; |
| |
| static const MtpEventCode kSupportedEventCodes[] = { |
| MTP_EVENT_OBJECT_ADDED, |
| MTP_EVENT_OBJECT_REMOVED, |
| MTP_EVENT_STORE_ADDED, |
| MTP_EVENT_STORE_REMOVED, |
| MTP_EVENT_DEVICE_PROP_CHANGED, |
| }; |
| |
| MtpServer::MtpServer(int fd, MtpDatabase* database, bool ptp, |
| int fileGroup, int filePerm, int directoryPerm) |
| : mFD(fd), |
| mDatabase(database), |
| mPtp(ptp), |
| mFileGroup(fileGroup), |
| mFilePermission(filePerm), |
| mDirectoryPermission(directoryPerm), |
| mSessionID(0), |
| mSessionOpen(false), |
| mSendObjectHandle(kInvalidObjectHandle), |
| mSendObjectFormat(0), |
| mSendObjectFileSize(0) |
| { |
| } |
| |
| MtpServer::~MtpServer() { |
| } |
| |
| void MtpServer::addStorage(MtpStorage* storage) { |
| Mutex::Autolock autoLock(mMutex); |
| |
| mStorages.push(storage); |
| sendStoreAdded(storage->getStorageID()); |
| } |
| |
| void MtpServer::removeStorage(MtpStorage* storage) { |
| Mutex::Autolock autoLock(mMutex); |
| |
| for (size_t i = 0; i < mStorages.size(); i++) { |
| if (mStorages[i] == storage) { |
| mStorages.removeAt(i); |
| sendStoreRemoved(storage->getStorageID()); |
| break; |
| } |
| } |
| } |
| |
| MtpStorage* MtpServer::getStorage(MtpStorageID id) { |
| if (id == 0) |
| return mStorages[0]; |
| for (size_t i = 0; i < mStorages.size(); i++) { |
| MtpStorage* storage = mStorages[i]; |
| if (storage->getStorageID() == id) |
| return storage; |
| } |
| return NULL; |
| } |
| |
| bool MtpServer::hasStorage(MtpStorageID id) { |
| if (id == 0 || id == 0xFFFFFFFF) |
| return mStorages.size() > 0; |
| return (getStorage(id) != NULL); |
| } |
| |
| void MtpServer::run() { |
| int fd = mFD; |
| |
| ALOGV("MtpServer::run fd: %d\n", fd); |
| |
| while (1) { |
| int ret = mRequest.read(fd); |
| if (ret < 0) { |
| ALOGV("request read returned %d, errno: %d", ret, errno); |
| if (errno == ECANCELED) { |
| // return to top of loop and wait for next command |
| continue; |
| } |
| break; |
| } |
| MtpOperationCode operation = mRequest.getOperationCode(); |
| MtpTransactionID transaction = mRequest.getTransactionID(); |
| |
| ALOGV("operation: %s", MtpDebug::getOperationCodeName(operation)); |
| mRequest.dump(); |
| |
| // FIXME need to generalize this |
| bool dataIn = (operation == MTP_OPERATION_SEND_OBJECT_INFO |
| || operation == MTP_OPERATION_SET_OBJECT_REFERENCES |
| || operation == MTP_OPERATION_SET_OBJECT_PROP_VALUE |
| || operation == MTP_OPERATION_SET_DEVICE_PROP_VALUE); |
| if (dataIn) { |
| int ret = mData.read(fd); |
| if (ret < 0) { |
| ALOGE("data read returned %d, errno: %d", ret, errno); |
| if (errno == ECANCELED) { |
| // return to top of loop and wait for next command |
| continue; |
| } |
| break; |
| } |
| ALOGV("received data:"); |
| mData.dump(); |
| } else { |
| mData.reset(); |
| } |
| |
| if (handleRequest()) { |
| if (!dataIn && mData.hasData()) { |
| mData.setOperationCode(operation); |
| mData.setTransactionID(transaction); |
| ALOGV("sending data:"); |
| mData.dump(); |
| ret = mData.write(fd); |
| if (ret < 0) { |
| ALOGE("request write returned %d, errno: %d", ret, errno); |
| if (errno == ECANCELED) { |
| // return to top of loop and wait for next command |
| continue; |
| } |
| break; |
| } |
| } |
| |
| mResponse.setTransactionID(transaction); |
| ALOGV("sending response %04X", mResponse.getResponseCode()); |
| ret = mResponse.write(fd); |
| mResponse.dump(); |
| if (ret < 0) { |
| ALOGE("request write returned %d, errno: %d", ret, errno); |
| if (errno == ECANCELED) { |
| // return to top of loop and wait for next command |
| continue; |
| } |
| break; |
| } |
| } else { |
| ALOGV("skipping response\n"); |
| } |
| } |
| |
| // commit any open edits |
| int count = mObjectEditList.size(); |
| for (int i = 0; i < count; i++) { |
| ObjectEdit* edit = mObjectEditList[i]; |
| commitEdit(edit); |
| delete edit; |
| } |
| mObjectEditList.clear(); |
| |
| if (mSessionOpen) |
| mDatabase->sessionEnded(); |
| close(fd); |
| mFD = -1; |
| } |
| |
| void MtpServer::sendObjectAdded(MtpObjectHandle handle) { |
| ALOGV("sendObjectAdded %d\n", handle); |
| sendEvent(MTP_EVENT_OBJECT_ADDED, handle); |
| } |
| |
| void MtpServer::sendObjectRemoved(MtpObjectHandle handle) { |
| ALOGV("sendObjectRemoved %d\n", handle); |
| sendEvent(MTP_EVENT_OBJECT_REMOVED, handle); |
| } |
| |
| void MtpServer::sendStoreAdded(MtpStorageID id) { |
| ALOGV("sendStoreAdded %08X\n", id); |
| sendEvent(MTP_EVENT_STORE_ADDED, id); |
| } |
| |
| void MtpServer::sendStoreRemoved(MtpStorageID id) { |
| ALOGV("sendStoreRemoved %08X\n", id); |
| sendEvent(MTP_EVENT_STORE_REMOVED, id); |
| } |
| |
| void MtpServer::sendDevicePropertyChanged(MtpDeviceProperty property) { |
| ALOGV("sendDevicePropertyChanged %d\n", property); |
| sendEvent(MTP_EVENT_DEVICE_PROP_CHANGED, property); |
| } |
| |
| void MtpServer::sendEvent(MtpEventCode code, uint32_t param1) { |
| if (mSessionOpen) { |
| mEvent.setEventCode(code); |
| mEvent.setTransactionID(mRequest.getTransactionID()); |
| mEvent.setParameter(1, param1); |
| int ret = mEvent.write(mFD); |
| ALOGV("mEvent.write returned %d\n", ret); |
| } |
| } |
| |
| void MtpServer::addEditObject(MtpObjectHandle handle, MtpString& path, |
| uint64_t size, MtpObjectFormat format, int fd) { |
| ObjectEdit* edit = new ObjectEdit(handle, path, size, format, fd); |
| mObjectEditList.add(edit); |
| } |
| |
| MtpServer::ObjectEdit* MtpServer::getEditObject(MtpObjectHandle handle) { |
| int count = mObjectEditList.size(); |
| for (int i = 0; i < count; i++) { |
| ObjectEdit* edit = mObjectEditList[i]; |
| if (edit->mHandle == handle) return edit; |
| } |
| return NULL; |
| } |
| |
| void MtpServer::removeEditObject(MtpObjectHandle handle) { |
| int count = mObjectEditList.size(); |
| for (int i = 0; i < count; i++) { |
| ObjectEdit* edit = mObjectEditList[i]; |
| if (edit->mHandle == handle) { |
| delete edit; |
| mObjectEditList.removeAt(i); |
| return; |
| } |
| } |
| ALOGE("ObjectEdit not found in removeEditObject"); |
| } |
| |
| void MtpServer::commitEdit(ObjectEdit* edit) { |
| mDatabase->endSendObject((const char *)edit->mPath, edit->mHandle, edit->mFormat, true); |
| } |
| |
| |
| bool MtpServer::handleRequest() { |
| Mutex::Autolock autoLock(mMutex); |
| |
| MtpOperationCode operation = mRequest.getOperationCode(); |
| MtpResponseCode response; |
| |
| mResponse.reset(); |
| |
| if (mSendObjectHandle != kInvalidObjectHandle && operation != MTP_OPERATION_SEND_OBJECT) { |
| // FIXME - need to delete mSendObjectHandle from the database |
| ALOGE("expected SendObject after SendObjectInfo"); |
| mSendObjectHandle = kInvalidObjectHandle; |
| } |
| |
| int containertype = mRequest.getContainerType(); |
| if (containertype != MTP_CONTAINER_TYPE_COMMAND) { |
| ALOGE("wrong container type %d", containertype); |
| return false; |
| } |
| |
| ALOGV("got command %s (%x)", MtpDebug::getOperationCodeName(operation), operation); |
| |
| switch (operation) { |
| case MTP_OPERATION_GET_DEVICE_INFO: |
| response = doGetDeviceInfo(); |
| break; |
| case MTP_OPERATION_OPEN_SESSION: |
| response = doOpenSession(); |
| break; |
| case MTP_OPERATION_CLOSE_SESSION: |
| response = doCloseSession(); |
| break; |
| case MTP_OPERATION_GET_STORAGE_IDS: |
| response = doGetStorageIDs(); |
| break; |
| case MTP_OPERATION_GET_STORAGE_INFO: |
| response = doGetStorageInfo(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_PROPS_SUPPORTED: |
| response = doGetObjectPropsSupported(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_HANDLES: |
| response = doGetObjectHandles(); |
| break; |
| case MTP_OPERATION_GET_NUM_OBJECTS: |
| response = doGetNumObjects(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_REFERENCES: |
| response = doGetObjectReferences(); |
| break; |
| case MTP_OPERATION_SET_OBJECT_REFERENCES: |
| response = doSetObjectReferences(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_PROP_VALUE: |
| response = doGetObjectPropValue(); |
| break; |
| case MTP_OPERATION_SET_OBJECT_PROP_VALUE: |
| response = doSetObjectPropValue(); |
| break; |
| case MTP_OPERATION_GET_DEVICE_PROP_VALUE: |
| response = doGetDevicePropValue(); |
| break; |
| case MTP_OPERATION_SET_DEVICE_PROP_VALUE: |
| response = doSetDevicePropValue(); |
| break; |
| case MTP_OPERATION_RESET_DEVICE_PROP_VALUE: |
| response = doResetDevicePropValue(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_PROP_LIST: |
| response = doGetObjectPropList(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_INFO: |
| response = doGetObjectInfo(); |
| break; |
| case MTP_OPERATION_GET_OBJECT: |
| response = doGetObject(); |
| break; |
| case MTP_OPERATION_GET_THUMB: |
| response = doGetThumb(); |
| break; |
| case MTP_OPERATION_GET_PARTIAL_OBJECT: |
| case MTP_OPERATION_GET_PARTIAL_OBJECT_64: |
| response = doGetPartialObject(operation); |
| break; |
| case MTP_OPERATION_SEND_OBJECT_INFO: |
| response = doSendObjectInfo(); |
| break; |
| case MTP_OPERATION_SEND_OBJECT: |
| response = doSendObject(); |
| break; |
| case MTP_OPERATION_DELETE_OBJECT: |
| response = doDeleteObject(); |
| break; |
| case MTP_OPERATION_GET_OBJECT_PROP_DESC: |
| response = doGetObjectPropDesc(); |
| break; |
| case MTP_OPERATION_GET_DEVICE_PROP_DESC: |
| response = doGetDevicePropDesc(); |
| break; |
| case MTP_OPERATION_SEND_PARTIAL_OBJECT: |
| response = doSendPartialObject(); |
| break; |
| case MTP_OPERATION_TRUNCATE_OBJECT: |
| response = doTruncateObject(); |
| break; |
| case MTP_OPERATION_BEGIN_EDIT_OBJECT: |
| response = doBeginEditObject(); |
| break; |
| case MTP_OPERATION_END_EDIT_OBJECT: |
| response = doEndEditObject(); |
| break; |
| default: |
| ALOGE("got unsupported command %s (%x)", |
| MtpDebug::getOperationCodeName(operation), operation); |
| response = MTP_RESPONSE_OPERATION_NOT_SUPPORTED; |
| break; |
| } |
| |
| if (response == MTP_RESPONSE_TRANSACTION_CANCELLED) |
| return false; |
| mResponse.setResponseCode(response); |
| return true; |
| } |
| |
| MtpResponseCode MtpServer::doGetDeviceInfo() { |
| MtpStringBuffer string; |
| char prop_value[PROPERTY_VALUE_MAX]; |
| |
| MtpObjectFormatList* playbackFormats = mDatabase->getSupportedPlaybackFormats(); |
| MtpObjectFormatList* captureFormats = mDatabase->getSupportedCaptureFormats(); |
| MtpDevicePropertyList* deviceProperties = mDatabase->getSupportedDeviceProperties(); |
| |
| // fill in device info |
| mData.putUInt16(MTP_STANDARD_VERSION); |
| if (mPtp) { |
| mData.putUInt32(0); |
| } else { |
| // MTP Vendor Extension ID |
| mData.putUInt32(6); |
| } |
| mData.putUInt16(MTP_STANDARD_VERSION); |
| if (mPtp) { |
| // no extensions |
| string.set(""); |
| } else { |
| // MTP extensions |
| string.set("microsoft.com: 1.0; android.com: 1.0;"); |
| } |
| mData.putString(string); // MTP Extensions |
| mData.putUInt16(0); //Functional Mode |
| mData.putAUInt16(kSupportedOperationCodes, |
| sizeof(kSupportedOperationCodes) / sizeof(uint16_t)); // Operations Supported |
| mData.putAUInt16(kSupportedEventCodes, |
| sizeof(kSupportedEventCodes) / sizeof(uint16_t)); // Events Supported |
| mData.putAUInt16(deviceProperties); // Device Properties Supported |
| mData.putAUInt16(captureFormats); // Capture Formats |
| mData.putAUInt16(playbackFormats); // Playback Formats |
| |
| property_get("ro.product.manufacturer", prop_value, "unknown manufacturer"); |
| string.set(prop_value); |
| mData.putString(string); // Manufacturer |
| |
| property_get("ro.product.model", prop_value, "MTP Device"); |
| string.set(prop_value); |
| mData.putString(string); // Model |
| string.set("1.0"); |
| mData.putString(string); // Device Version |
| |
| property_get("ro.serialno", prop_value, "????????"); |
| string.set(prop_value); |
| mData.putString(string); // Serial Number |
| |
| delete playbackFormats; |
| delete captureFormats; |
| delete deviceProperties; |
| |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doOpenSession() { |
| if (mSessionOpen) { |
| mResponse.setParameter(1, mSessionID); |
| return MTP_RESPONSE_SESSION_ALREADY_OPEN; |
| } |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| |
| mSessionID = mRequest.getParameter(1); |
| mSessionOpen = true; |
| |
| mDatabase->sessionStarted(); |
| |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doCloseSession() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| mSessionID = 0; |
| mSessionOpen = false; |
| mDatabase->sessionEnded(); |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetStorageIDs() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| |
| int count = mStorages.size(); |
| mData.putUInt32(count); |
| for (int i = 0; i < count; i++) |
| mData.putUInt32(mStorages[i]->getStorageID()); |
| |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetStorageInfo() { |
| MtpStringBuffer string; |
| |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| |
| MtpStorageID id = mRequest.getParameter(1); |
| MtpStorage* storage = getStorage(id); |
| if (!storage) |
| return MTP_RESPONSE_INVALID_STORAGE_ID; |
| |
| mData.putUInt16(storage->getType()); |
| mData.putUInt16(storage->getFileSystemType()); |
| mData.putUInt16(storage->getAccessCapability()); |
| mData.putUInt64(storage->getMaxCapacity()); |
| mData.putUInt64(storage->getFreeSpace()); |
| mData.putUInt32(1024*1024*1024); // Free Space in Objects |
| string.set(storage->getDescription()); |
| mData.putString(string); |
| mData.putEmptyString(); // Volume Identifier |
| |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectPropsSupported() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectFormat format = mRequest.getParameter(1); |
| MtpObjectPropertyList* properties = mDatabase->getSupportedObjectProperties(format); |
| mData.putAUInt16(properties); |
| delete properties; |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectHandles() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| if (mRequest.getParameterCount() < 3) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpStorageID storageID = mRequest.getParameter(1); // 0xFFFFFFFF for all storage |
| MtpObjectFormat format = mRequest.getParameter(2); // 0 for all formats |
| MtpObjectHandle parent = mRequest.getParameter(3); // 0xFFFFFFFF for objects with no parent |
| // 0x00000000 for all objects |
| |
| if (!hasStorage(storageID)) |
| return MTP_RESPONSE_INVALID_STORAGE_ID; |
| |
| MtpObjectHandleList* handles = mDatabase->getObjectList(storageID, format, parent); |
| mData.putAUInt32(handles); |
| delete handles; |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetNumObjects() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| if (mRequest.getParameterCount() < 3) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpStorageID storageID = mRequest.getParameter(1); // 0xFFFFFFFF for all storage |
| MtpObjectFormat format = mRequest.getParameter(2); // 0 for all formats |
| MtpObjectHandle parent = mRequest.getParameter(3); // 0xFFFFFFFF for objects with no parent |
| // 0x00000000 for all objects |
| if (!hasStorage(storageID)) |
| return MTP_RESPONSE_INVALID_STORAGE_ID; |
| |
| int count = mDatabase->getNumObjects(storageID, format, parent); |
| if (count >= 0) { |
| mResponse.setParameter(1, count); |
| return MTP_RESPONSE_OK; |
| } else { |
| mResponse.setParameter(1, 0); |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| } |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectReferences() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| |
| // FIXME - check for invalid object handle |
| MtpObjectHandleList* handles = mDatabase->getObjectReferences(handle); |
| if (handles) { |
| mData.putAUInt32(handles); |
| delete handles; |
| } else { |
| mData.putEmptyArray(); |
| } |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doSetObjectReferences() { |
| if (!mSessionOpen) |
| return MTP_RESPONSE_SESSION_NOT_OPEN; |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpStorageID handle = mRequest.getParameter(1); |
| |
| MtpObjectHandleList* references = mData.getAUInt32(); |
| if (!references) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpResponseCode result = mDatabase->setObjectReferences(handle, references); |
| delete references; |
| return result; |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectPropValue() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 2) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| MtpObjectProperty property = mRequest.getParameter(2); |
| ALOGV("GetObjectPropValue %d %s\n", handle, |
| MtpDebug::getObjectPropCodeName(property)); |
| |
| return mDatabase->getObjectPropertyValue(handle, property, mData); |
| } |
| |
| MtpResponseCode MtpServer::doSetObjectPropValue() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 2) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| MtpObjectProperty property = mRequest.getParameter(2); |
| ALOGV("SetObjectPropValue %d %s\n", handle, |
| MtpDebug::getObjectPropCodeName(property)); |
| |
| return mDatabase->setObjectPropertyValue(handle, property, mData); |
| } |
| |
| MtpResponseCode MtpServer::doGetDevicePropValue() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpDeviceProperty property = mRequest.getParameter(1); |
| ALOGV("GetDevicePropValue %s\n", |
| MtpDebug::getDevicePropCodeName(property)); |
| |
| return mDatabase->getDevicePropertyValue(property, mData); |
| } |
| |
| MtpResponseCode MtpServer::doSetDevicePropValue() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpDeviceProperty property = mRequest.getParameter(1); |
| ALOGV("SetDevicePropValue %s\n", |
| MtpDebug::getDevicePropCodeName(property)); |
| |
| return mDatabase->setDevicePropertyValue(property, mData); |
| } |
| |
| MtpResponseCode MtpServer::doResetDevicePropValue() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpDeviceProperty property = mRequest.getParameter(1); |
| ALOGV("ResetDevicePropValue %s\n", |
| MtpDebug::getDevicePropCodeName(property)); |
| |
| return mDatabase->resetDeviceProperty(property); |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectPropList() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 5) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| // use uint32_t so we can support 0xFFFFFFFF |
| uint32_t format = mRequest.getParameter(2); |
| uint32_t property = mRequest.getParameter(3); |
| int groupCode = mRequest.getParameter(4); |
| int depth = mRequest.getParameter(5); |
| ALOGV("GetObjectPropList %d format: %s property: %s group: %d depth: %d\n", |
| handle, MtpDebug::getFormatCodeName(format), |
| MtpDebug::getObjectPropCodeName(property), groupCode, depth); |
| |
| return mDatabase->getObjectPropertyList(handle, format, property, groupCode, depth, mData); |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectInfo() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| MtpObjectInfo info(handle); |
| MtpResponseCode result = mDatabase->getObjectInfo(handle, info); |
| if (result == MTP_RESPONSE_OK) { |
| char date[20]; |
| |
| mData.putUInt32(info.mStorageID); |
| mData.putUInt16(info.mFormat); |
| mData.putUInt16(info.mProtectionStatus); |
| |
| // if object is being edited the database size may be out of date |
| uint32_t size = info.mCompressedSize; |
| ObjectEdit* edit = getEditObject(handle); |
| if (edit) |
| size = (edit->mSize > 0xFFFFFFFFLL ? 0xFFFFFFFF : (uint32_t)edit->mSize); |
| mData.putUInt32(size); |
| |
| mData.putUInt16(info.mThumbFormat); |
| mData.putUInt32(info.mThumbCompressedSize); |
| mData.putUInt32(info.mThumbPixWidth); |
| mData.putUInt32(info.mThumbPixHeight); |
| mData.putUInt32(info.mImagePixWidth); |
| mData.putUInt32(info.mImagePixHeight); |
| mData.putUInt32(info.mImagePixDepth); |
| mData.putUInt32(info.mParent); |
| mData.putUInt16(info.mAssociationType); |
| mData.putUInt32(info.mAssociationDesc); |
| mData.putUInt32(info.mSequenceNumber); |
| mData.putString(info.mName); |
| formatDateTime(info.mDateCreated, date, sizeof(date)); |
| mData.putString(date); // date created |
| formatDateTime(info.mDateModified, date, sizeof(date)); |
| mData.putString(date); // date modified |
| mData.putEmptyString(); // keywords |
| } |
| return result; |
| } |
| |
| MtpResponseCode MtpServer::doGetObject() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| MtpString pathBuf; |
| int64_t fileLength; |
| MtpObjectFormat format; |
| int result = mDatabase->getObjectFilePath(handle, pathBuf, fileLength, format); |
| if (result != MTP_RESPONSE_OK) |
| return result; |
| |
| const char* filePath = (const char *)pathBuf; |
| mtp_file_range mfr; |
| mfr.fd = open(filePath, O_RDONLY); |
| if (mfr.fd < 0) { |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| mfr.offset = 0; |
| mfr.length = fileLength; |
| mfr.command = mRequest.getOperationCode(); |
| mfr.transaction_id = mRequest.getTransactionID(); |
| |
| // then transfer the file |
| int ret = ioctl(mFD, MTP_SEND_FILE_WITH_HEADER, (unsigned long)&mfr); |
| ALOGV("MTP_SEND_FILE_WITH_HEADER returned %d\n", ret); |
| close(mfr.fd); |
| if (ret < 0) { |
| if (errno == ECANCELED) |
| return MTP_RESPONSE_TRANSACTION_CANCELLED; |
| else |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetThumb() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| size_t thumbSize; |
| void* thumb = mDatabase->getThumbnail(handle, thumbSize); |
| if (thumb) { |
| // send data |
| mData.setOperationCode(mRequest.getOperationCode()); |
| mData.setTransactionID(mRequest.getTransactionID()); |
| mData.writeData(mFD, thumb, thumbSize); |
| free(thumb); |
| return MTP_RESPONSE_OK; |
| } else { |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| } |
| |
| MtpResponseCode MtpServer::doGetPartialObject(MtpOperationCode operation) { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| uint64_t offset; |
| uint32_t length; |
| offset = mRequest.getParameter(2); |
| if (operation == MTP_OPERATION_GET_PARTIAL_OBJECT_64) { |
| // MTP_OPERATION_GET_PARTIAL_OBJECT_64 takes 4 arguments |
| if (mRequest.getParameterCount() < 4) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| |
| // android extension with 64 bit offset |
| uint64_t offset2 = mRequest.getParameter(3); |
| offset = offset | (offset2 << 32); |
| length = mRequest.getParameter(4); |
| } else { |
| // MTP_OPERATION_GET_PARTIAL_OBJECT takes 3 arguments |
| if (mRequest.getParameterCount() < 3) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| |
| // standard GetPartialObject |
| length = mRequest.getParameter(3); |
| } |
| MtpString pathBuf; |
| int64_t fileLength; |
| MtpObjectFormat format; |
| int result = mDatabase->getObjectFilePath(handle, pathBuf, fileLength, format); |
| if (result != MTP_RESPONSE_OK) |
| return result; |
| if (offset + length > (uint64_t)fileLength) |
| length = fileLength - offset; |
| |
| const char* filePath = (const char *)pathBuf; |
| mtp_file_range mfr; |
| mfr.fd = open(filePath, O_RDONLY); |
| if (mfr.fd < 0) { |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| mfr.offset = offset; |
| mfr.length = length; |
| mfr.command = mRequest.getOperationCode(); |
| mfr.transaction_id = mRequest.getTransactionID(); |
| mResponse.setParameter(1, length); |
| |
| // transfer the file |
| int ret = ioctl(mFD, MTP_SEND_FILE_WITH_HEADER, (unsigned long)&mfr); |
| ALOGV("MTP_SEND_FILE_WITH_HEADER returned %d\n", ret); |
| close(mfr.fd); |
| if (ret < 0) { |
| if (errno == ECANCELED) |
| return MTP_RESPONSE_TRANSACTION_CANCELLED; |
| else |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doSendObjectInfo() { |
| MtpString path; |
| uint16_t temp16; |
| uint32_t temp32; |
| |
| if (mRequest.getParameterCount() < 2) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpStorageID storageID = mRequest.getParameter(1); |
| MtpStorage* storage = getStorage(storageID); |
| MtpObjectHandle parent = mRequest.getParameter(2); |
| if (!storage) |
| return MTP_RESPONSE_INVALID_STORAGE_ID; |
| |
| // special case the root |
| if (parent == MTP_PARENT_ROOT) { |
| path = storage->getPath(); |
| parent = 0; |
| } else { |
| int64_t length; |
| MtpObjectFormat format; |
| int result = mDatabase->getObjectFilePath(parent, path, length, format); |
| if (result != MTP_RESPONSE_OK) |
| return result; |
| if (format != MTP_FORMAT_ASSOCIATION) |
| return MTP_RESPONSE_INVALID_PARENT_OBJECT; |
| } |
| |
| // read only the fields we need |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // storage ID |
| if (!mData.getUInt16(temp16)) return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectFormat format = temp16; |
| if (!mData.getUInt16(temp16)) return MTP_RESPONSE_INVALID_PARAMETER; // protection status |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; |
| mSendObjectFileSize = temp32; |
| if (!mData.getUInt16(temp16)) return MTP_RESPONSE_INVALID_PARAMETER; // thumb format |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // thumb compressed size |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // thumb pix width |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // thumb pix height |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // image pix width |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // image pix height |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // image bit depth |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // parent |
| if (!mData.getUInt16(temp16)) return MTP_RESPONSE_INVALID_PARAMETER; |
| uint16_t associationType = temp16; |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; |
| uint32_t associationDesc = temp32; // association desc |
| if (!mData.getUInt32(temp32)) return MTP_RESPONSE_INVALID_PARAMETER; // sequence number |
| MtpStringBuffer name, created, modified; |
| if (!mData.getString(name)) return MTP_RESPONSE_INVALID_PARAMETER; // file name |
| if (!mData.getString(created)) return MTP_RESPONSE_INVALID_PARAMETER; // date created |
| if (!mData.getString(modified)) return MTP_RESPONSE_INVALID_PARAMETER; // date modified |
| // keywords follow |
| |
| ALOGV("name: %s format: %04X\n", (const char *)name, format); |
| time_t modifiedTime; |
| if (!parseDateTime(modified, modifiedTime)) |
| modifiedTime = 0; |
| |
| if (path[path.size() - 1] != '/') |
| path += "/"; |
| path += (const char *)name; |
| |
| // check space first |
| if (mSendObjectFileSize > storage->getFreeSpace()) |
| return MTP_RESPONSE_STORAGE_FULL; |
| uint64_t maxFileSize = storage->getMaxFileSize(); |
| // check storage max file size |
| if (maxFileSize != 0) { |
| // if mSendObjectFileSize is 0xFFFFFFFF, then all we know is the file size |
| // is >= 0xFFFFFFFF |
| if (mSendObjectFileSize > maxFileSize || mSendObjectFileSize == 0xFFFFFFFF) |
| return MTP_RESPONSE_OBJECT_TOO_LARGE; |
| } |
| |
| ALOGD("path: %s parent: %d storageID: %08X", (const char*)path, parent, storageID); |
| MtpObjectHandle handle = mDatabase->beginSendObject((const char*)path, |
| format, parent, storageID, mSendObjectFileSize, modifiedTime); |
| if (handle == kInvalidObjectHandle) { |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| if (format == MTP_FORMAT_ASSOCIATION) { |
| mode_t mask = umask(0); |
| int ret = mkdir((const char *)path, mDirectoryPermission); |
| umask(mask); |
| if (ret && ret != -EEXIST) |
| return MTP_RESPONSE_GENERAL_ERROR; |
| chown((const char *)path, getuid(), mFileGroup); |
| |
| // SendObject does not get sent for directories, so call endSendObject here instead |
| mDatabase->endSendObject(path, handle, MTP_FORMAT_ASSOCIATION, MTP_RESPONSE_OK); |
| } else { |
| mSendObjectFilePath = path; |
| // save the handle for the SendObject call, which should follow |
| mSendObjectHandle = handle; |
| mSendObjectFormat = format; |
| } |
| |
| mResponse.setParameter(1, storageID); |
| mResponse.setParameter(2, parent); |
| mResponse.setParameter(3, handle); |
| |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doSendObject() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_GENERAL_ERROR; |
| MtpResponseCode result = MTP_RESPONSE_OK; |
| mode_t mask; |
| int ret, initialData; |
| |
| if (mSendObjectHandle == kInvalidObjectHandle) { |
| ALOGE("Expected SendObjectInfo before SendObject"); |
| result = MTP_RESPONSE_NO_VALID_OBJECT_INFO; |
| goto done; |
| } |
| |
| // read the header, and possibly some data |
| ret = mData.read(mFD); |
| if (ret < MTP_CONTAINER_HEADER_SIZE) { |
| result = MTP_RESPONSE_GENERAL_ERROR; |
| goto done; |
| } |
| initialData = ret - MTP_CONTAINER_HEADER_SIZE; |
| |
| mtp_file_range mfr; |
| mfr.fd = open(mSendObjectFilePath, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR); |
| if (mfr.fd < 0) { |
| result = MTP_RESPONSE_GENERAL_ERROR; |
| goto done; |
| } |
| fchown(mfr.fd, getuid(), mFileGroup); |
| // set permissions |
| mask = umask(0); |
| fchmod(mfr.fd, mFilePermission); |
| umask(mask); |
| |
| if (initialData > 0) { |
| ret = write(mfr.fd, mData.getData(), initialData); |
| } |
| |
| if (ret < 0) { |
| ALOGE("failed to write initial data"); |
| result = MTP_RESPONSE_GENERAL_ERROR; |
| } else { |
| if (mSendObjectFileSize - initialData > 0) { |
| mfr.offset = initialData; |
| if (mSendObjectFileSize == 0xFFFFFFFF) { |
| // tell driver to read until it receives a short packet |
| mfr.length = 0xFFFFFFFF; |
| } else { |
| mfr.length = mSendObjectFileSize - initialData; |
| } |
| |
| ALOGV("receiving %s\n", (const char *)mSendObjectFilePath); |
| // transfer the file |
| ret = ioctl(mFD, MTP_RECEIVE_FILE, (unsigned long)&mfr); |
| ALOGV("MTP_RECEIVE_FILE returned %d\n", ret); |
| } |
| } |
| close(mfr.fd); |
| |
| if (ret < 0) { |
| unlink(mSendObjectFilePath); |
| if (errno == ECANCELED) |
| result = MTP_RESPONSE_TRANSACTION_CANCELLED; |
| else |
| result = MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| done: |
| // reset so we don't attempt to send the data back |
| mData.reset(); |
| |
| mDatabase->endSendObject(mSendObjectFilePath, mSendObjectHandle, mSendObjectFormat, |
| result == MTP_RESPONSE_OK); |
| mSendObjectHandle = kInvalidObjectHandle; |
| mSendObjectFormat = 0; |
| return result; |
| } |
| |
| static void deleteRecursive(const char* path) { |
| char pathbuf[PATH_MAX]; |
| size_t pathLength = strlen(path); |
| if (pathLength >= sizeof(pathbuf) - 1) { |
| ALOGE("path too long: %s\n", path); |
| } |
| strcpy(pathbuf, path); |
| if (pathbuf[pathLength - 1] != '/') { |
| pathbuf[pathLength++] = '/'; |
| } |
| char* fileSpot = pathbuf + pathLength; |
| int pathRemaining = sizeof(pathbuf) - pathLength - 1; |
| |
| DIR* dir = opendir(path); |
| if (!dir) { |
| ALOGE("opendir %s failed: %s", path, strerror(errno)); |
| return; |
| } |
| |
| struct dirent* entry; |
| while ((entry = readdir(dir))) { |
| const char* name = entry->d_name; |
| |
| // ignore "." and ".." |
| if (name[0] == '.' && (name[1] == 0 || (name[1] == '.' && name[2] == 0))) { |
| continue; |
| } |
| |
| int nameLength = strlen(name); |
| if (nameLength > pathRemaining) { |
| ALOGE("path %s/%s too long\n", path, name); |
| continue; |
| } |
| strcpy(fileSpot, name); |
| |
| int type = entry->d_type; |
| if (entry->d_type == DT_DIR) { |
| deleteRecursive(pathbuf); |
| rmdir(pathbuf); |
| } else { |
| unlink(pathbuf); |
| } |
| } |
| closedir(dir); |
| } |
| |
| static void deletePath(const char* path) { |
| struct stat statbuf; |
| if (stat(path, &statbuf) == 0) { |
| if (S_ISDIR(statbuf.st_mode)) { |
| deleteRecursive(path); |
| rmdir(path); |
| } else { |
| unlink(path); |
| } |
| } else { |
| ALOGE("deletePath stat failed for %s: %s", path, strerror(errno)); |
| } |
| } |
| |
| MtpResponseCode MtpServer::doDeleteObject() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| MtpObjectFormat format; |
| // FIXME - support deleting all objects if handle is 0xFFFFFFFF |
| // FIXME - implement deleting objects by format |
| |
| MtpString filePath; |
| int64_t fileLength; |
| int result = mDatabase->getObjectFilePath(handle, filePath, fileLength, format); |
| if (result == MTP_RESPONSE_OK) { |
| ALOGV("deleting %s", (const char *)filePath); |
| result = mDatabase->deleteFile(handle); |
| // Don't delete the actual files unless the database deletion is allowed |
| if (result == MTP_RESPONSE_OK) { |
| deletePath((const char *)filePath); |
| } |
| } |
| |
| return result; |
| } |
| |
| MtpResponseCode MtpServer::doGetObjectPropDesc() { |
| if (mRequest.getParameterCount() < 2) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectProperty propCode = mRequest.getParameter(1); |
| MtpObjectFormat format = mRequest.getParameter(2); |
| ALOGV("GetObjectPropDesc %s %s\n", MtpDebug::getObjectPropCodeName(propCode), |
| MtpDebug::getFormatCodeName(format)); |
| MtpProperty* property = mDatabase->getObjectPropertyDesc(propCode, format); |
| if (!property) |
| return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED; |
| property->write(mData); |
| delete property; |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doGetDevicePropDesc() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpDeviceProperty propCode = mRequest.getParameter(1); |
| ALOGV("GetDevicePropDesc %s\n", MtpDebug::getDevicePropCodeName(propCode)); |
| MtpProperty* property = mDatabase->getDevicePropertyDesc(propCode); |
| if (!property) |
| return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; |
| property->write(mData); |
| delete property; |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doSendPartialObject() { |
| if (!hasStorage()) |
| return MTP_RESPONSE_INVALID_OBJECT_HANDLE; |
| if (mRequest.getParameterCount() < 4) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| uint64_t offset = mRequest.getParameter(2); |
| uint64_t offset2 = mRequest.getParameter(3); |
| offset = offset | (offset2 << 32); |
| uint32_t length = mRequest.getParameter(4); |
| |
| ObjectEdit* edit = getEditObject(handle); |
| if (!edit) { |
| ALOGE("object not open for edit in doSendPartialObject"); |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| // can't start writing past the end of the file |
| if (offset > edit->mSize) { |
| ALOGD("writing past end of object, offset: %" PRIu64 ", edit->mSize: %" PRIu64, |
| offset, edit->mSize); |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| const char* filePath = (const char *)edit->mPath; |
| ALOGV("receiving partial %s %" PRIu64 " %" PRIu32, filePath, offset, length); |
| |
| // read the header, and possibly some data |
| int ret = mData.read(mFD); |
| if (ret < MTP_CONTAINER_HEADER_SIZE) |
| return MTP_RESPONSE_GENERAL_ERROR; |
| int initialData = ret - MTP_CONTAINER_HEADER_SIZE; |
| |
| if (initialData > 0) { |
| ret = pwrite(edit->mFD, mData.getData(), initialData, offset); |
| offset += initialData; |
| length -= initialData; |
| } |
| |
| if (ret < 0) { |
| ALOGE("failed to write initial data"); |
| } else { |
| if (length > 0) { |
| mtp_file_range mfr; |
| mfr.fd = edit->mFD; |
| mfr.offset = offset; |
| mfr.length = length; |
| |
| // transfer the file |
| ret = ioctl(mFD, MTP_RECEIVE_FILE, (unsigned long)&mfr); |
| ALOGV("MTP_RECEIVE_FILE returned %d", ret); |
| } |
| } |
| if (ret < 0) { |
| mResponse.setParameter(1, 0); |
| if (errno == ECANCELED) |
| return MTP_RESPONSE_TRANSACTION_CANCELLED; |
| else |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| // reset so we don't attempt to send this back |
| mData.reset(); |
| mResponse.setParameter(1, length); |
| uint64_t end = offset + length; |
| if (end > edit->mSize) { |
| edit->mSize = end; |
| } |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doTruncateObject() { |
| if (mRequest.getParameterCount() < 3) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| ObjectEdit* edit = getEditObject(handle); |
| if (!edit) { |
| ALOGE("object not open for edit in doTruncateObject"); |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| uint64_t offset = mRequest.getParameter(2); |
| uint64_t offset2 = mRequest.getParameter(3); |
| offset |= (offset2 << 32); |
| if (ftruncate(edit->mFD, offset) != 0) { |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } else { |
| edit->mSize = offset; |
| return MTP_RESPONSE_OK; |
| } |
| } |
| |
| MtpResponseCode MtpServer::doBeginEditObject() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| if (getEditObject(handle)) { |
| ALOGE("object already open for edit in doBeginEditObject"); |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| MtpString path; |
| int64_t fileLength; |
| MtpObjectFormat format; |
| int result = mDatabase->getObjectFilePath(handle, path, fileLength, format); |
| if (result != MTP_RESPONSE_OK) |
| return result; |
| |
| int fd = open((const char *)path, O_RDWR | O_EXCL); |
| if (fd < 0) { |
| ALOGE("open failed for %s in doBeginEditObject (%d)", (const char *)path, errno); |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| addEditObject(handle, path, fileLength, format, fd); |
| return MTP_RESPONSE_OK; |
| } |
| |
| MtpResponseCode MtpServer::doEndEditObject() { |
| if (mRequest.getParameterCount() < 1) |
| return MTP_RESPONSE_INVALID_PARAMETER; |
| MtpObjectHandle handle = mRequest.getParameter(1); |
| ObjectEdit* edit = getEditObject(handle); |
| if (!edit) { |
| ALOGE("object not open for edit in doEndEditObject"); |
| return MTP_RESPONSE_GENERAL_ERROR; |
| } |
| |
| commitEdit(edit); |
| removeEditObject(handle); |
| return MTP_RESPONSE_OK; |
| } |
| |
| } // namespace android |
