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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     DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
61 
62     DrmMetadata* getMetadata(int uniqueId, const String8* path);
63 
64     bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
65 
66     DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
67 
68     DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInforequest);
69 
70     status_t saveRights(int uniqueId, const DrmRights& drmRights,
71             const String8& rightsPath, const String8& contentPath);
72 
73     String8 getOriginalMimeType(int uniqueId, const String8& path, int fd);
74 
75     int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
76 
77     int checkRightsStatus(int uniqueId, const String8& path,int action);
78 
79     status_t consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
80 
81     status_t setPlaybackStatus(
82             int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position);
83 
84     bool validateAction(int uniqueId, const String8& path,
85             int action, const ActionDescription& description);
86 
87     status_t removeRights(int uniqueId, const String8& path);
88 
89     status_t removeAllRights(int uniqueId);
90 
91     int openConvertSession(int uniqueId, const String8& mimeType);
92 
93     DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
94 
95     DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
96 
97     status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
98 
99     DecryptHandle* openDecryptSession(
100         int uniqueId, int fd, off64_t offset, off64_t length, const char *mime);
101 
102     DecryptHandle* openDecryptSession(
103         int uniqueId, const char* uri, const char* mime);
104 
105     DecryptHandle* openDecryptSession(int uniqueId, const DrmBuffer& buf,
106             const String8& mimeType);
107 
108     status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
109 
110     status_t initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
111             int decryptUnitId, const DrmBuffer* headerInfo);
112 
113     status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
114             const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV);
115 
116     status_t finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
117 
118     ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
119             void* buffer, ssize_t numBytes, off64_t offset);
120 
121     virtual status_t dump(int fd, const Vector<String16>& args);
122 
123 private:
124     DrmManager* mDrmManager;
125 };
126 
127 };
128 
129 #endif /* __DRM_MANAGER_SERVICE_H__ */
130 
131