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 #ifndef CRYPTO_H_ 18 19 #define CRYPTO_H_ 20 21 #include <media/ICrypto.h> 22 #include <utils/threads.h> 23 24 namespace android { 25 26 struct CryptoFactory; 27 struct CryptoPlugin; 28 29 struct Crypto : public BnCrypto { 30 Crypto(); 31 virtual ~Crypto(); 32 33 virtual status_t initCheck() const; 34 35 virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) const; 36 37 virtual status_t createPlugin( 38 const uint8_t uuid[16], const void *data, size_t size); 39 40 virtual status_t destroyPlugin(); 41 42 virtual bool requiresSecureDecoderComponent( 43 const char *mime) const; 44 45 virtual status_t decrypt( 46 bool secure, 47 const uint8_t key[16], 48 const uint8_t iv[16], 49 CryptoPlugin::Mode mode, 50 const void *srcPtr, 51 const CryptoPlugin::SubSample *subSamples, size_t numSubSamples, 52 void *dstPtr, 53 AString *errorDetailMsg); 54 55 private: 56 mutable Mutex mLock; 57 58 status_t mInitCheck; 59 void *mLibHandle; 60 CryptoFactory *mFactory; 61 CryptoPlugin *mPlugin; 62 63 status_t init(); 64 65 DISALLOW_EVIL_CONSTRUCTORS(Crypto); 66 }; 67 68 } // namespace android 69 70 #endif // CRYPTO_H_ 71