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      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_SERVICE_H__
     18 #define __DRM_MANAGER_SERVICE_H__
     19 
     20 #include <utils/RefBase.h>
     21 #include <utils/KeyedVector.h>
     22 #include <binder/IInterface.h>
     23 #include <binder/Parcel.h>
     24 #include "IDrmManagerService.h"
     25 #include "IDrmServiceListener.h"
     26 
     27 namespace android {
     28 
     29 class DrmManager;
     30 class String8;
     31 class Mutex;
     32 
     33 /**
     34  * This is the implementation class for DRM manager service. This delegates
     35  * the responsibility to DrmManager.
     36  *
     37  * The instance of this class is created while starting the DRM manager service.
     38  *
     39  */
     40 class DrmManagerService : public BnDrmManagerService {
     41 public:
     42     static void instantiate();
     43 
     44 private:
     45     DrmManagerService();
     46     virtual ~DrmManagerService();
     47 
     48 public:
     49     int addUniqueId(bool isNative);
     50 
     51     void removeUniqueId(int uniqueId);
     52 
     53     void addClient(int uniqueId);
     54 
     55     void removeClient(int uniqueId);
     56 
     57     status_t setDrmServiceListener(
     58             int uniqueId, const sp<IDrmServiceListener>& drmServiceListener);
     59 
     60     status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
     61 
     62     DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
     63 
     64     DrmMetadata* getMetadata(int uniqueId, const String8* path);
     65 
     66     bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
     67 
     68     DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
     69 
     70     DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInforequest);
     71 
     72     status_t saveRights(int uniqueId, const DrmRights& drmRights,
     73             const String8& rightsPath, const String8& contentPath);
     74 
     75     String8 getOriginalMimeType(int uniqueId, const String8& path, int fd);
     76 
     77     int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
     78 
     79     int checkRightsStatus(int uniqueId, const String8& path,int action);
     80 
     81     status_t consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
     82 
     83     status_t setPlaybackStatus(
     84             int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position);
     85 
     86     bool validateAction(int uniqueId, const String8& path,
     87             int action, const ActionDescription& description);
     88 
     89     status_t removeRights(int uniqueId, const String8& path);
     90 
     91     status_t removeAllRights(int uniqueId);
     92 
     93     int openConvertSession(int uniqueId, const String8& mimeType);
     94 
     95     DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
     96 
     97     DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
     98 
     99     status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
    100 
    101     DecryptHandle* openDecryptSession(
    102         int uniqueId, int fd, off64_t offset, off64_t length, const char *mime);
    103 
    104     DecryptHandle* openDecryptSession(
    105         int uniqueId, const char* uri, const char* mime);
    106 
    107     DecryptHandle* openDecryptSession(int uniqueId, const DrmBuffer& buf,
    108             const String8& mimeType);
    109 
    110     status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
    111 
    112     status_t initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
    113             int decryptUnitId, const DrmBuffer* headerInfo);
    114 
    115     status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
    116             const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV);
    117 
    118     status_t finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
    119 
    120     ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
    121             void* buffer, ssize_t numBytes, off64_t offset);
    122 
    123     virtual status_t dump(int fd, const Vector<String16>& args);
    124 
    125 private:
    126     DrmManager* mDrmManager;
    127 };
    128 
    129 };
    130 
    131 #endif /* __DRM_MANAGER_SERVICE_H__ */
    132 
    133