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 #ifndef __DRM_MANAGER_H__ 18 #define __DRM_MANAGER_H__ 19 20 #include <utils/Errors.h> 21 #include <utils/threads.h> 22 #include <drm/drm_framework_common.h> 23 #include "IDrmEngine.h" 24 #include "PlugInManager.h" 25 #include "IDrmServiceListener.h" 26 27 namespace android { 28 29 class IDrmManager; 30 class DrmRegistrationInfo; 31 class DrmUnregistrationInfo; 32 class DrmRightsAcquisitionInfo; 33 class DrmConstraints; 34 class DrmMetadata; 35 class DrmRights; 36 class DrmInfo; 37 class DrmInfoStatus; 38 class DrmConvertedStatus; 39 class DrmInfoRequest; 40 class DrmSupportInfo; 41 class ActionDescription; 42 43 /** 44 * This is implementation class for DRM Manager. This class delegates the 45 * functionality to corresponding DRM Engine. 46 * 47 * The DrmManagerService class creates an instance of this class. 48 * 49 */ 50 class DrmManager : public IDrmEngine::OnInfoListener { 51 public: 52 DrmManager(); 53 virtual ~DrmManager(); 54 55 public: 56 int addUniqueId(bool isNative); 57 58 void removeUniqueId(int uniqueId); 59 60 void addClient(int uniqueId); 61 62 void removeClient(int uniqueId); 63 64 status_t loadPlugIns(); 65 66 status_t loadPlugIns(const String8& plugInDirPath); 67 68 status_t unloadPlugIns(); 69 70 status_t setDrmServiceListener( 71 int uniqueId, const sp<IDrmServiceListener>& drmServiceListener); 72 73 status_t installDrmEngine(int uniqueId, const String8& drmEngineFile); 74 75 DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action); 76 77 DrmMetadata* getMetadata(int uniqueId, const String8* path); 78 79 bool canHandle(int uniqueId, const String8& path, const String8& mimeType); 80 81 DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo); 82 83 DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest); 84 85 status_t saveRights(int uniqueId, const DrmRights& drmRights, 86 const String8& rightsPath, const String8& contentPath); 87 88 String8 getOriginalMimeType(int uniqueId, const String8& path, int fd); 89 90 int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType); 91 92 int checkRightsStatus(int uniqueId, const String8& path, int action); 93 94 status_t consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve); 95 96 status_t setPlaybackStatus( 97 int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position); 98 99 bool validateAction( 100 int uniqueId, const String8& path, int action, const ActionDescription& description); 101 102 status_t removeRights(int uniqueId, const String8& path); 103 104 status_t removeAllRights(int uniqueId); 105 106 int openConvertSession(int uniqueId, const String8& mimeType); 107 108 DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData); 109 110 DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId); 111 112 status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray); 113 114 DecryptHandle* openDecryptSession( 115 int uniqueId, int fd, off64_t offset, off64_t length, const char* mime); 116 117 DecryptHandle* openDecryptSession(int uniqueId, const char* uri, const char* mime); 118 119 DecryptHandle* openDecryptSession(int uniqueId, const DrmBuffer& buf, 120 const String8& mimeType); 121 122 status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle); 123 124 status_t initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, 125 int decryptUnitId, const DrmBuffer* headerInfo); 126 127 status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId, 128 const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV); 129 130 status_t finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId); 131 132 ssize_t pread(int uniqueId, DecryptHandle* decryptHandle, 133 void* buffer, ssize_t numBytes, off64_t offset); 134 135 void onInfo(const DrmInfoEvent& event); 136 137 private: 138 String8 getSupportedPlugInId(int uniqueId, const String8& path, const String8& mimeType); 139 140 String8 getSupportedPlugInId(const String8& mimeType); 141 142 String8 getSupportedPlugInIdFromPath(int uniqueId, const String8& path); 143 144 bool canHandle(int uniqueId, const String8& path); 145 146 private: 147 enum { 148 kMaxNumUniqueIds = 0x1000, 149 }; 150 151 bool mUniqueIdArray[kMaxNumUniqueIds]; 152 static const String8 EMPTY_STRING; 153 154 int mDecryptSessionId; 155 int mConvertId; 156 Mutex mLock; 157 Mutex mListenerLock; 158 Mutex mDecryptLock; 159 Mutex mConvertLock; 160 TPlugInManager<IDrmEngine> mPlugInManager; 161 KeyedVector< DrmSupportInfo, String8 > mSupportInfoToPlugInIdMap; 162 KeyedVector< int, IDrmEngine*> mConvertSessionMap; 163 KeyedVector< int, sp<IDrmServiceListener> > mServiceListeners; 164 KeyedVector< int, IDrmEngine*> mDecryptSessionMap; 165 }; 166 167 }; 168 169 #endif /* __DRM_MANAGER_H__ */ 170 171