1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CRYPTO_H_
#define CRYPTO_H_
#include <media/ICrypto.h>
#include <utils/threads.h>
#include <utils/KeyedVector.h>
#include "SharedLibrary.h"
namespace android {
struct CryptoFactory;
struct CryptoPlugin;
struct Crypto : public BnCrypto {
Crypto();
virtual ~Crypto();
virtual status_t initCheck() const;
virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
virtual status_t createPlugin(
const uint8_t uuid[16], const void *data, size_t size);
virtual status_t destroyPlugin();
virtual bool requiresSecureDecoderComponent(
const char *mime) const;
virtual ssize_t decrypt(
bool secure,
const uint8_t key[16],
const uint8_t iv[16],
CryptoPlugin::Mode mode,
const void *srcPtr,
const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
void *dstPtr,
AString *errorDetailMsg);
private:
mutable Mutex mLock;
status_t mInitCheck;
sp<SharedLibrary> mLibrary;
CryptoFactory *mFactory;
CryptoPlugin *mPlugin;
static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
static Mutex mMapLock;
void findFactoryForScheme(const uint8_t uuid[16]);
bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
void closeFactory();
DISALLOW_EVIL_CONSTRUCTORS(Crypto);
};
} // namespace android
#endif // CRYPTO_H_
|
