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      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 ssize_t decrypt(
     45             bool secure,
     46             const uint8_t key[16],
     47             const uint8_t iv[16],
     48             CryptoPlugin::Mode mode,
     49             const void *srcPtr,
     50             const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
     51             void *dstPtr,
     52             AString *errorDetailMsg) = 0;
     53 
     54 private:
     55     DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
     56 };
     57 
     58 struct BnCrypto : public BnInterface<ICrypto> {
     59     virtual status_t onTransact(
     60             uint32_t code, const Parcel &data, Parcel *reply,
     61             uint32_t flags = 0);
     62 };
     63 
     64 }  // namespace android
     65 
     66 #endif // ANDROID_ICRYPTO_H_
     67 
     68