1 /*
2  * Copyright (C) 2012 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 #include <binder/IInterface.h>
18 #include <media/stagefright/foundation/ABase.h>
19 #include <media/hardware/CryptoAPI.h>
20 
21 #ifndef ANDROID_ICRYPTO_H_
22 
23 #define ANDROID_ICRYPTO_H_
24 
25 namespace android {
26 
27 struct AString;
28 
29 struct ICrypto : public IInterface {
30     DECLARE_META_INTERFACE(Crypto);
31 
32     virtual status_t initCheck() const = 0;
33 
34     virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) = 0;
35 
36     virtual status_t createPlugin(
37             const uint8_t uuid[16], const void *data, size_t size) = 0;
38 
39     virtual status_t destroyPlugin() = 0;
40 
41     virtual bool requiresSecureDecoderComponent(
42             const char *mime) const = 0;
43 
44     virtual void notifyResolution(uint32_t width, uint32_t height) = 0;
45 
46     virtual ssize_t decrypt(
47             bool secure,
48             const uint8_t key[16],
49             const uint8_t iv[16],
50             CryptoPlugin::Mode mode,
51             const void *srcPtr,
52             const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
53             void *dstPtr,
54             AString *errorDetailMsg) = 0;
55 
56 private:
57     DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
58 };
59 
60 struct BnCrypto : public BnInterface<ICrypto> {
61     virtual status_t onTransact(
62             uint32_t code, const Parcel &data, Parcel *reply,
63             uint32_t flags = 0);
64 };
65 
66 }  // namespace android
67 
68 #endif // ANDROID_ICRYPTO_H_
69