DrmManager.h revision 0e0a5f9e0b7a7ca618e8a1f7ccecc57a17e0d1e2
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 27namespace android { 28 29class IDrmManager; 30class DrmRegistrationInfo; 31class DrmUnregistrationInfo; 32class DrmRightsAcquisitionInfo; 33class DrmContentIds; 34class DrmConstraints; 35class DrmMetadata; 36class DrmRights; 37class DrmInfo; 38class DrmInfoStatus; 39class DrmConvertedStatus; 40class DrmInfoRequest; 41class DrmSupportInfo; 42class ActionDescription; 43 44/** 45 * This is implementation class for DRM Manager. This class delegates the 46 * functionality to corresponding DRM Engine. 47 * 48 * The DrmManagerService class creates an instance of this class. 49 * 50 */ 51class DrmManager : public IDrmEngine::OnInfoListener { 52public: 53 DrmManager(); 54 virtual ~DrmManager(); 55 56public: 57 int addUniqueId(int uniqueId); 58 59 void removeUniqueId(int uniqueId); 60 61 void addClient(int uniqueId); 62 63 void removeClient(int uniqueId); 64 65 status_t loadPlugIns(); 66 67 status_t loadPlugIns(const String8& plugInDirPath); 68 69 status_t unloadPlugIns(); 70 71 status_t setDrmServiceListener( 72 int uniqueId, const sp<IDrmServiceListener>& drmServiceListener); 73 74 status_t installDrmEngine(int uniqueId, const String8& drmEngineFile); 75 76 DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action); 77 78 DrmMetadata* getMetadata(int uniqueId, const String8* path); 79 80 bool canHandle(int uniqueId, const String8& path, const String8& mimeType); 81 82 DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo); 83 84 DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest); 85 86 status_t saveRights(int uniqueId, const DrmRights& drmRights, 87 const String8& rightsPath, const String8& contentPath); 88 89 String8 getOriginalMimeType(int uniqueId, const String8& path); 90 91 int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType); 92 93 int checkRightsStatus(int uniqueId, const String8& path, int action); 94 95 status_t consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve); 96 97 status_t setPlaybackStatus( 98 int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position); 99 100 bool validateAction( 101 int uniqueId, const String8& path, int action, const ActionDescription& description); 102 103 status_t removeRights(int uniqueId, const String8& path); 104 105 status_t removeAllRights(int uniqueId); 106 107 int openConvertSession(int uniqueId, const String8& mimeType); 108 109 DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData); 110 111 DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId); 112 113 status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray); 114 115 DecryptHandle* openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length); 116 117 DecryptHandle* openDecryptSession(int uniqueId, const char* uri); 118 119 status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle); 120 121 status_t initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, 122 int decryptUnitId, const DrmBuffer* headerInfo); 123 124 status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId, 125 const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV); 126 127 status_t finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId); 128 129 ssize_t pread(int uniqueId, DecryptHandle* decryptHandle, 130 void* buffer, ssize_t numBytes, off64_t offset); 131 132 void onInfo(const DrmInfoEvent& event); 133 134private: 135 String8 getSupportedPlugInId(int uniqueId, const String8& path, const String8& mimeType); 136 137 String8 getSupportedPlugInId(const String8& mimeType); 138 139 String8 getSupportedPlugInIdFromPath(int uniqueId, const String8& path); 140 141 bool canHandle(int uniqueId, const String8& path); 142 143private: 144 static Vector<int> mUniqueIdVector; 145 static const String8 EMPTY_STRING; 146 147 int mDecryptSessionId; 148 int mConvertId; 149 Mutex mLock; 150 Mutex mListenerLock; 151 Mutex mDecryptLock; 152 Mutex mConvertLock; 153 TPlugInManager<IDrmEngine> mPlugInManager; 154 KeyedVector< DrmSupportInfo, String8 > mSupportInfoToPlugInIdMap; 155 KeyedVector< int, IDrmEngine*> mConvertSessionMap; 156 KeyedVector< int, sp<IDrmServiceListener> > mServiceListeners; 157 KeyedVector< int, IDrmEngine*> mDecryptSessionMap; 158}; 159 160}; 161 162#endif /* __DRM_MANAGER_H__ */ 163 164