diff options
Diffstat (limited to 'drm/libdrmframework/plugins/forward-lock/FwdLockEngine/src/FwdLockEngine.cpp')
| -rw-r--r-- | drm/libdrmframework/plugins/forward-lock/FwdLockEngine/src/FwdLockEngine.cpp | 695 |
1 files changed, 0 insertions, 695 deletions
diff --git a/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/src/FwdLockEngine.cpp b/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/src/FwdLockEngine.cpp deleted file mode 100644 index 4b1b40e..0000000 --- a/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/src/FwdLockEngine.cpp +++ /dev/null @@ -1,695 +0,0 @@ -/* - * 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 "SessionMap.h" -#include "FwdLockEngine.h" -#include <utils/Log.h> -#include <errno.h> -#include <stdio.h> -#include <unistd.h> -#include "drm_framework_common.h" -#include <fcntl.h> -#include <limits.h> -#include <DrmRights.h> -#include <DrmConstraints.h> -#include <DrmMetadata.h> -#include <DrmInfo.h> -#include <DrmInfoStatus.h> -#include <DrmInfoRequest.h> -#include <DrmSupportInfo.h> -#include <DrmConvertedStatus.h> -#include <utils/String8.h> -#include "FwdLockConv.h" -#include "FwdLockFile.h" -#include "FwdLockGlue.h" -#include "MimeTypeUtil.h" - -#undef LOG_TAG -#define LOG_TAG "FwdLockEngine" - -#ifdef DRM_OMA_FL_ENGINE_DEBUG -#define LOG_NDEBUG 0 -#define LOG_VERBOSE(...) ALOGV(__VA_ARGS__) -#else -#define LOG_VERBOSE(...) -#endif - -using namespace android; -// This extern "C" is mandatory to be managed by TPlugInManager -extern "C" IDrmEngine* create() { - return new FwdLockEngine(); -} - -// This extern "C" is mandatory to be managed by TPlugInManager -extern "C" void destroy(IDrmEngine* plugIn) { - delete plugIn; -} - -FwdLockEngine::FwdLockEngine() { - LOG_VERBOSE("FwdLockEngine Construction"); -} - -FwdLockEngine::~FwdLockEngine() { - LOG_VERBOSE("FwdLockEngine Destruction"); - - int size = decodeSessionMap.getSize(); - - for (int i = 0; i < size; i++) { - DecodeSession *session = (DecodeSession*) decodeSessionMap.getValueAt(i); - FwdLockFile_detach(session->fileDesc); - ::close(session->fileDesc); - } - - size = convertSessionMap.getSize(); - for (int i = 0; i < size; i++) { - ConvertSession *convSession = (ConvertSession*) convertSessionMap.getValueAt(i); - FwdLockConv_CloseSession(convSession->uniqueId, &(convSession->output)); - } -} - -int FwdLockEngine::getConvertedStatus(FwdLockConv_Status_t status) { - int retStatus = DrmConvertedStatus::STATUS_ERROR; - - switch(status) { - case FwdLockConv_Status_OK: - retStatus = DrmConvertedStatus::STATUS_OK; - break; - case FwdLockConv_Status_SyntaxError: - case FwdLockConv_Status_InvalidArgument: - case FwdLockConv_Status_UnsupportedFileFormat: - case FwdLockConv_Status_UnsupportedContentTransferEncoding: - ALOGE("FwdLockEngine getConvertedStatus: file conversion Error %d. " - "Returning STATUS_INPUTDATA_ERROR", status); - retStatus = DrmConvertedStatus::STATUS_INPUTDATA_ERROR; - break; - default: - ALOGE("FwdLockEngine getConvertedStatus: file conversion Error %d. " - "Returning STATUS_ERROR", status); - retStatus = DrmConvertedStatus::STATUS_ERROR; - break; - } - - return retStatus; -} - -DrmConstraints* FwdLockEngine::onGetConstraints(int uniqueId, const String8* path, int action) { - DrmConstraints* drmConstraints = NULL; - - LOG_VERBOSE("FwdLockEngine::onGetConstraints"); - - if (NULL != path && - (RightsStatus::RIGHTS_VALID == onCheckRightsStatus(uniqueId, *path, action))) { - // Return the empty constraints to show no error condition. - drmConstraints = new DrmConstraints(); - } - - return drmConstraints; -} - -DrmMetadata* FwdLockEngine::onGetMetadata(int uniqueId, const String8* path) { - DrmMetadata* drmMetadata = NULL; - - LOG_VERBOSE("FwdLockEngine::onGetMetadata"); - - if (NULL != path) { - // Returns empty metadata to show no error condition. - drmMetadata = new DrmMetadata(); - } - - return drmMetadata; -} - -android::status_t FwdLockEngine::onInitialize(int uniqueId) { - LOG_VERBOSE("FwdLockEngine::onInitialize"); - - if (FwdLockGlue_InitializeKeyEncryption()) { - LOG_VERBOSE("FwdLockEngine::onInitialize -- FwdLockGlue_InitializeKeyEncryption succeeded"); - } else { - ALOGE("FwdLockEngine::onInitialize -- FwdLockGlue_InitializeKeyEncryption failed:" - "errno = %d", errno); - } - - return DRM_NO_ERROR; -} - -android::status_t -FwdLockEngine::onSetOnInfoListener(int uniqueId, const IDrmEngine::OnInfoListener* infoListener) { - // Not used - LOG_VERBOSE("FwdLockEngine::onSetOnInfoListener"); - - return DRM_NO_ERROR; -} - -android::status_t FwdLockEngine::onTerminate(int uniqueId) { - LOG_VERBOSE("FwdLockEngine::onTerminate"); - - return DRM_NO_ERROR; -} - -// make sure that lower-case letters are used. -const String8 FwdLockEngine::FileSuffixes[] = { - String8(".fl"), - String8(".dm"), -}; - -// make sure that lower-case letters are used. -const String8 FwdLockEngine::MimeTypes[] = { - String8("application/x-android-drm-fl"), - String8("application/vnd.oma.drm.message"), -}; - -const String8 FwdLockEngine::Description("OMA V1 Forward Lock"); - -void FwdLockEngine::AddSupportedMimeTypes(DrmSupportInfo *info) { - for (size_t i = 0, n = sizeof(MimeTypes)/sizeof(MimeTypes[0]); i < n; ++i) { - info->addMimeType(MimeTypes[i]); - } -} - -void FwdLockEngine::AddSupportedFileSuffixes(DrmSupportInfo *info) { - for (size_t i = 0, n = sizeof(FileSuffixes)/sizeof(FileSuffixes[0]); i < n; ++i) { - info->addFileSuffix(FileSuffixes[i]); - } -} - -bool FwdLockEngine::IsMimeTypeSupported(const String8& mime) { - String8 tmp(mime); - tmp.toLower(); - for (size_t i = 0, n = sizeof(MimeTypes)/sizeof(MimeTypes[0]); i < n; ++i) { - if (tmp == MimeTypes[i]) { - return true; - } - } - return false; -} - -bool FwdLockEngine::IsFileSuffixSupported(const String8& suffix) { - String8 tmp(suffix); - tmp.toLower(); - for (size_t i = 0, n = sizeof(FileSuffixes)/sizeof(FileSuffixes[0]); i < n; ++i) { - if (tmp == FileSuffixes[i]) { - return true; - } - } - return false; -} - -DrmSupportInfo* FwdLockEngine::onGetSupportInfo(int uniqueId) { - DrmSupportInfo* pSupportInfo = new DrmSupportInfo(); - - LOG_VERBOSE("FwdLockEngine::onGetSupportInfo"); - - // fill all Forward Lock mimetypes and extensions - if (NULL != pSupportInfo) { - AddSupportedMimeTypes(pSupportInfo); - AddSupportedFileSuffixes(pSupportInfo); - pSupportInfo->setDescription(Description); - } - - return pSupportInfo; -} - -bool FwdLockEngine::onCanHandle(int uniqueId, const String8& path) { - bool result = false; - - String8 extString = path.getPathExtension(); - return IsFileSuffixSupported(extString); -} - -DrmInfoStatus* FwdLockEngine::onProcessDrmInfo(int uniqueId, const DrmInfo* drmInfo) { - DrmInfoStatus *drmInfoStatus = NULL; - - // Nothing to process - - drmInfoStatus = new DrmInfoStatus((int)DrmInfoStatus::STATUS_OK, 0, NULL, String8("")); - - LOG_VERBOSE("FwdLockEngine::onProcessDrmInfo"); - - return drmInfoStatus; -} - -status_t FwdLockEngine::onSaveRights( - int uniqueId, - const DrmRights& drmRights, - const String8& rightsPath, - const String8& contentPath) { - // No rights to save. Return - LOG_VERBOSE("FwdLockEngine::onSaveRights"); - return DRM_ERROR_UNKNOWN; -} - -DrmInfo* FwdLockEngine::onAcquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) { - DrmInfo* drmInfo = NULL; - - // Nothing to be done for Forward Lock file - LOG_VERBOSE("FwdLockEngine::onAcquireDrmInfo"); - - return drmInfo; -} - -int FwdLockEngine::onCheckRightsStatus(int uniqueId, - const String8& path, - int action) { - int result = RightsStatus::RIGHTS_INVALID; - - LOG_VERBOSE("FwdLockEngine::onCheckRightsStatus"); - - // Only Transfer action is not allowed for forward Lock files. - if (onCanHandle(uniqueId, path)) { - switch(action) { - case Action::DEFAULT: - case Action::PLAY: - case Action::RINGTONE: - case Action::OUTPUT: - case Action::PREVIEW: - case Action::EXECUTE: - case Action::DISPLAY: - result = RightsStatus::RIGHTS_VALID; - break; - - case Action::TRANSFER: - default: - result = RightsStatus::RIGHTS_INVALID; - break; - } - } - - return result; -} - -status_t FwdLockEngine::onConsumeRights(int uniqueId, - DecryptHandle* decryptHandle, - int action, - bool reserve) { - // No rights consumption - LOG_VERBOSE("FwdLockEngine::onConsumeRights"); - return DRM_NO_ERROR; -} - -bool FwdLockEngine::onValidateAction(int uniqueId, - const String8& path, - int action, - const ActionDescription& description) { - LOG_VERBOSE("FwdLockEngine::onValidateAction"); - - // For the forwardlock engine checkRights and ValidateAction are the same. - return (onCheckRightsStatus(uniqueId, path, action) == RightsStatus::RIGHTS_VALID); -} - -String8 FwdLockEngine::onGetOriginalMimeType(int uniqueId, const String8& path) { - LOG_VERBOSE("FwdLockEngine::onGetOriginalMimeType"); - String8 mimeString = String8(""); - int fileDesc = FwdLockFile_open(path.string()); - - if (-1 < fileDesc) { - const char* pMimeType = FwdLockFile_GetContentType(fileDesc); - - if (NULL != pMimeType) { - String8 contentType = String8(pMimeType); - contentType.toLower(); - mimeString = MimeTypeUtil::convertMimeType(contentType); - } - - FwdLockFile_close(fileDesc); - } - - return mimeString; -} - -int FwdLockEngine::onGetDrmObjectType(int uniqueId, - const String8& path, - const String8& mimeType) { - String8 mimeStr = String8(mimeType); - - LOG_VERBOSE("FwdLockEngine::onGetDrmObjectType"); - - /* Checks whether - * 1. path and mime type both are not empty strings (meaning unavailable) else content is unknown - * 2. if one of them is empty string and if other is known then its a DRM Content Object. - * 3. if both of them are available, then both may be of known type - * (regardless of the relation between them to make it compatible with other DRM Engines) - */ - if (((0 == path.length()) || onCanHandle(uniqueId, path)) && - ((0 == mimeType.length()) || IsMimeTypeSupported(mimeType)) && (mimeType != path) ) { - return DrmObjectType::CONTENT; - } - - return DrmObjectType::UNKNOWN; -} - -status_t FwdLockEngine::onRemoveRights(int uniqueId, const String8& path) { - // No Rights to remove - LOG_VERBOSE("FwdLockEngine::onRemoveRights"); - return DRM_NO_ERROR; -} - -status_t FwdLockEngine::onRemoveAllRights(int uniqueId) { - // No rights to remove - LOG_VERBOSE("FwdLockEngine::onRemoveAllRights"); - return DRM_NO_ERROR; -} - -#ifdef USE_64BIT_DRM_API -status_t FwdLockEngine::onSetPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle, - int playbackStatus, int64_t position) { -#else -status_t FwdLockEngine::onSetPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle, - int playbackStatus, int position) { -#endif - // Not used - LOG_VERBOSE("FwdLockEngine::onSetPlaybackStatus"); - return DRM_NO_ERROR; -} - -status_t FwdLockEngine::onOpenConvertSession(int uniqueId, - int convertId) { - status_t result = DRM_ERROR_UNKNOWN; - LOG_VERBOSE("FwdLockEngine::onOpenConvertSession"); - if (!convertSessionMap.isCreated(convertId)) { - ConvertSession *newSession = new ConvertSession(); - if (FwdLockConv_Status_OK == - FwdLockConv_OpenSession(&(newSession->uniqueId), &(newSession->output))) { - convertSessionMap.addValue(convertId, newSession); - result = DRM_NO_ERROR; - } else { - ALOGE("FwdLockEngine::onOpenConvertSession -- FwdLockConv_OpenSession failed."); - delete newSession; - } - } - return result; -} - -DrmConvertedStatus* FwdLockEngine::onConvertData(int uniqueId, - int convertId, - const DrmBuffer* inputData) { - FwdLockConv_Status_t retStatus = FwdLockConv_Status_InvalidArgument; - DrmBuffer *convResult = new DrmBuffer(NULL, 0); - int offset = -1; - - if (NULL != inputData && convertSessionMap.isCreated(convertId)) { - ConvertSession *convSession = convertSessionMap.getValue(convertId); - - if (NULL != convSession) { - retStatus = FwdLockConv_ConvertData(convSession->uniqueId, - inputData->data, - inputData->length, - &(convSession->output)); - - if (FwdLockConv_Status_OK == retStatus) { - // return bytes from conversion if available - if (convSession->output.fromConvertData.numBytes > 0) { - convResult->data = new char[convSession->output.fromConvertData.numBytes]; - - if (NULL != convResult->data) { - convResult->length = convSession->output.fromConvertData.numBytes; - memcpy(convResult->data, - (char *)convSession->output.fromConvertData.pBuffer, - convResult->length); - } - } - } else { - offset = convSession->output.fromConvertData.errorPos; - } - } - } - return new DrmConvertedStatus(getConvertedStatus(retStatus), convResult, offset); -} - -DrmConvertedStatus* FwdLockEngine::onCloseConvertSession(int uniqueId, - int convertId) { - FwdLockConv_Status_t retStatus = FwdLockConv_Status_InvalidArgument; - DrmBuffer *convResult = new DrmBuffer(NULL, 0); - int offset = -1; - - LOG_VERBOSE("FwdLockEngine::onCloseConvertSession"); - - if (convertSessionMap.isCreated(convertId)) { - ConvertSession *convSession = convertSessionMap.getValue(convertId); - - if (NULL != convSession) { - retStatus = FwdLockConv_CloseSession(convSession->uniqueId, &(convSession->output)); - - if (FwdLockConv_Status_OK == retStatus) { - offset = convSession->output.fromCloseSession.fileOffset; - convResult->data = new char[FWD_LOCK_SIGNATURES_SIZE]; - - if (NULL != convResult->data) { - convResult->length = FWD_LOCK_SIGNATURES_SIZE; - memcpy(convResult->data, - (char *)convSession->output.fromCloseSession.signatures, - convResult->length); - } - } - } - convertSessionMap.removeValue(convertId); - } - return new DrmConvertedStatus(getConvertedStatus(retStatus), convResult, offset); -} - -#ifdef USE_64BIT_DRM_API -status_t FwdLockEngine::onOpenDecryptSession(int uniqueId, - DecryptHandle* decryptHandle, - int fd, - off64_t offset, - off64_t length) { -#else -status_t FwdLockEngine::onOpenDecryptSession(int uniqueId, - DecryptHandle* decryptHandle, - int fd, - int offset, - int length) { -#endif - status_t result = DRM_ERROR_CANNOT_HANDLE; - int fileDesc = -1; - - LOG_VERBOSE("FwdLockEngine::onOpenDecryptSession"); - - if ((-1 < fd) && - (NULL != decryptHandle) && - (!decodeSessionMap.isCreated(decryptHandle->decryptId))) { - fileDesc = dup(fd); - } else { - ALOGE("FwdLockEngine::onOpenDecryptSession parameter error"); - return result; - } - - if (-1 < fileDesc && - -1 < ::lseek(fileDesc, offset, SEEK_SET) && - -1 < FwdLockFile_attach(fileDesc)) { - // check for file integrity. This must be done to protect the content mangling. - int retVal = FwdLockFile_CheckHeaderIntegrity(fileDesc); - DecodeSession* decodeSession = new DecodeSession(fileDesc); - - if (retVal && NULL != decodeSession) { - decodeSessionMap.addValue(decryptHandle->decryptId, decodeSession); - const char *pmime= FwdLockFile_GetContentType(fileDesc); - String8 contentType = String8(pmime == NULL ? "" : pmime); - contentType.toLower(); - decryptHandle->mimeType = MimeTypeUtil::convertMimeType(contentType); - decryptHandle->decryptApiType = DecryptApiType::CONTAINER_BASED; - decryptHandle->status = RightsStatus::RIGHTS_VALID; - decryptHandle->decryptInfo = NULL; - result = DRM_NO_ERROR; - } else { - LOG_VERBOSE("FwdLockEngine::onOpenDecryptSession Integrity Check failed for the fd"); - FwdLockFile_detach(fileDesc); - delete decodeSession; - } - } - - if (DRM_NO_ERROR != result && -1 < fileDesc) { - ::close(fileDesc); - } - - LOG_VERBOSE("FwdLockEngine::onOpenDecryptSession Exit. result = %d", result); - - return result; -} - -status_t FwdLockEngine::onOpenDecryptSession(int uniqueId, - DecryptHandle* decryptHandle, - const char* uri) { - status_t result = DRM_ERROR_CANNOT_HANDLE; - const char fileTag [] = "file://"; - - if (NULL != decryptHandle && NULL != uri && strlen(uri) > sizeof(fileTag)) { - String8 uriTag = String8(uri); - uriTag.toLower(); - - if (0 == strncmp(uriTag.string(), fileTag, sizeof(fileTag) - 1)) { - const char *filePath = strchr(uri + sizeof(fileTag) - 1, '/'); - if (NULL != filePath && onCanHandle(uniqueId, String8(filePath))) { - int fd = open(filePath, O_RDONLY); - - if (-1 < fd) { - // offset is always 0 and length is not used. so any positive size. - result = onOpenDecryptSession(uniqueId, decryptHandle, fd, 0, 1); - - // fd is duplicated already if success. closing the file - close(fd); - } - } - } - } - - return result; -} - -status_t FwdLockEngine::onCloseDecryptSession(int uniqueId, - DecryptHandle* decryptHandle) { - status_t result = DRM_ERROR_UNKNOWN; - LOG_VERBOSE("FwdLockEngine::onCloseDecryptSession"); - - if (NULL != decryptHandle && decodeSessionMap.isCreated(decryptHandle->decryptId)) { - DecodeSession* session = decodeSessionMap.getValue(decryptHandle->decryptId); - if (NULL != session && session->fileDesc > -1) { - FwdLockFile_detach(session->fileDesc); - ::close(session->fileDesc); - decodeSessionMap.removeValue(decryptHandle->decryptId); - result = DRM_NO_ERROR; - } - } - - if (NULL != decryptHandle) { - if (NULL != decryptHandle->decryptInfo) { - delete decryptHandle->decryptInfo; - decryptHandle->decryptInfo = NULL; - } - - decryptHandle->copyControlVector.clear(); - decryptHandle->extendedData.clear(); - - delete decryptHandle; - decryptHandle = NULL; - } - - LOG_VERBOSE("FwdLockEngine::onCloseDecryptSession Exit"); - return result; -} - -status_t FwdLockEngine::onInitializeDecryptUnit(int uniqueId, - DecryptHandle* decryptHandle, - int decryptUnitId, - const DrmBuffer* headerInfo) { - ALOGE("FwdLockEngine::onInitializeDecryptUnit is not supported for this DRM scheme"); - return DRM_ERROR_UNKNOWN; -} - -status_t FwdLockEngine::onDecrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId, - const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) { - ALOGE("FwdLockEngine::onDecrypt is not supported for this DRM scheme"); - return DRM_ERROR_UNKNOWN; -} - -status_t FwdLockEngine::onDecrypt(int uniqueId, - DecryptHandle* decryptHandle, - int decryptUnitId, - const DrmBuffer* encBuffer, - DrmBuffer** decBuffer) { - ALOGE("FwdLockEngine::onDecrypt is not supported for this DRM scheme"); - return DRM_ERROR_UNKNOWN; -} - -status_t FwdLockEngine::onFinalizeDecryptUnit(int uniqueId, - DecryptHandle* decryptHandle, - int decryptUnitId) { - ALOGE("FwdLockEngine::onFinalizeDecryptUnit is not supported for this DRM scheme"); - return DRM_ERROR_UNKNOWN; -} - -ssize_t FwdLockEngine::onRead(int uniqueId, - DecryptHandle* decryptHandle, - void* buffer, - int numBytes) { - ssize_t size = -1; - - if (NULL != decryptHandle && - decodeSessionMap.isCreated(decryptHandle->decryptId) && - NULL != buffer && - numBytes > -1) { - DecodeSession* session = decodeSessionMap.getValue(decryptHandle->decryptId); - if (NULL != session && session->fileDesc > -1) { - size = FwdLockFile_read(session->fileDesc, buffer, numBytes); - - if (0 > size) { - session->offset = ((off_t)-1); - } else { - session->offset += size; - } - } - } - - return size; -} - -#ifdef USE_64BIT_DRM_API -off64_t FwdLockEngine::onLseek(int uniqueId, DecryptHandle* decryptHandle, - off64_t offset, int whence) { -#else -off_t FwdLockEngine::onLseek(int uniqueId, DecryptHandle* decryptHandle, - off_t offset, int whence) { -#endif - off_t offval = -1; - - if (NULL != decryptHandle && decodeSessionMap.isCreated(decryptHandle->decryptId)) { - DecodeSession* session = decodeSessionMap.getValue(decryptHandle->decryptId); - if (NULL != session && session->fileDesc > -1) { - offval = FwdLockFile_lseek(session->fileDesc, offset, whence); - session->offset = offval; - } - } - - return offval; -} - -#ifdef USE_64BIT_DRM_API -ssize_t FwdLockEngine::onPread(int uniqueId, - DecryptHandle* decryptHandle, - void* buffer, - ssize_t numBytes, - off64_t offset) { -#else -ssize_t FwdLockEngine::onPread(int uniqueId, - DecryptHandle* decryptHandle, - void* buffer, - ssize_t numBytes, - off_t offset) { -#endif - ssize_t bytesRead = -1; - - DecodeSession* decoderSession = NULL; - - if ((NULL != decryptHandle) && - (NULL != (decoderSession = decodeSessionMap.getValue(decryptHandle->decryptId))) && - (NULL != buffer) && - (numBytes > -1) && - (offset > -1)) { - if (offset != decoderSession->offset) { - decoderSession->offset = onLseek(uniqueId, decryptHandle, offset, SEEK_SET); - } - - if (((off_t)-1) != decoderSession->offset) { - bytesRead = onRead(uniqueId, decryptHandle, buffer, numBytes); - if (bytesRead < 0) { - ALOGE("FwdLockEngine::onPread error reading"); - } - } - } else { - ALOGE("FwdLockEngine::onPread decryptId not found"); - } - - return bytesRead; -} |