Session.h revision 1fe11a5d1b7932a8a4a4e6e8cf1aedd21fcdb3aa 
1/*
2 * Copyright (C) 2014 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 CLEARKEY_SESSION_H_
18#define CLEARKEY_SESSION_H_
19
20#include <media/stagefright/foundation/ABase.h>
21#include <utils/Errors.h>
22#include <utils/Mutex.h>
23#include <utils/RefBase.h>
24#include <utils/String8.h>
25#include <utils/Vector.h>
26
27#include "ClearKeyTypes.h"
28#include "Utils.h"
29
30namespace clearkeydrm {
31
32class Session : public android::RefBase {
33public:
34    explicit Session(const android::Vector<uint8_t>& sessionId)
35            : mSessionId(sessionId) {}
36    virtual ~Session() {}
37
38    const android::Vector<uint8_t>& sessionId() const { return mSessionId; }
39
40    android::status_t getKeyRequest(
41            const android::Vector<uint8_t>& initData,
42            const android::String8& initDataType,
43            android::Vector<uint8_t>* keyRequest) const;
44
45    android::status_t provideKeyResponse(
46            const android::Vector<uint8_t>& response);
47
48    android::status_t decrypt(
49            const KeyId keyId, const Iv iv, const void* source,
50            void* destination, const SubSample* subSamples,
51            size_t numSubSamples, size_t* bytesDecryptedOut);
52
53private:
54    DISALLOW_EVIL_CONSTRUCTORS(Session);
55
56    const android::Vector<uint8_t> mSessionId;
57
58    android::Mutex mMapLock;
59    KeyMap mKeyMap;
60};
61
62} // namespace clearkeydrm
63
64#endif // CLEARKEY_SESSION_H_
65