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      1 /*
      2  * Copyright (C) 2013 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/drm/DrmAPI.h>
     20 #include <media/IDrmClient.h>
     21 
     22 #ifndef ANDROID_IDRM_H_
     23 
     24 #define ANDROID_IDRM_H_
     25 
     26 namespace android {
     27 
     28 struct AString;
     29 
     30 struct IDrm : public IInterface {
     31     DECLARE_META_INTERFACE(Drm);
     32 
     33     virtual status_t initCheck() const = 0;
     34 
     35     virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) = 0;
     36 
     37     virtual status_t createPlugin(const uint8_t uuid[16]) = 0;
     38 
     39     virtual status_t destroyPlugin() = 0;
     40 
     41     virtual status_t openSession(Vector<uint8_t> &sessionId) = 0;
     42 
     43     virtual status_t closeSession(Vector<uint8_t> const &sessionId) = 0;
     44 
     45     virtual status_t
     46         getKeyRequest(Vector<uint8_t> const &sessionId,
     47                       Vector<uint8_t> const &initData,
     48                       String8 const &mimeType, DrmPlugin::KeyType keyType,
     49                       KeyedVector<String8, String8> const &optionalParameters,
     50                       Vector<uint8_t> &request, String8 &defaultUrl,
     51                       DrmPlugin::KeyRequestType *keyRequestType) = 0;
     52 
     53     virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
     54                                         Vector<uint8_t> const &response,
     55                                         Vector<uint8_t> &keySetId) = 0;
     56 
     57     virtual status_t removeKeys(Vector<uint8_t> const &keySetId) = 0;
     58 
     59     virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
     60                                  Vector<uint8_t> const &keySetId) = 0;
     61 
     62     virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
     63                                     KeyedVector<String8, String8> &infoMap) const = 0;
     64 
     65     virtual status_t getProvisionRequest(String8 const &certType,
     66                                          String8 const &certAuthority,
     67                                          Vector<uint8_t> &request,
     68                                          String8 &defaulUrl) = 0;
     69 
     70     virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
     71                                               Vector<uint8_t> &certificate,
     72                                               Vector<uint8_t> &wrappedKey) = 0;
     73 
     74     virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) = 0;
     75     virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
     76 
     77     virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
     78     virtual status_t releaseAllSecureStops() = 0;
     79 
     80     virtual status_t getPropertyString(String8 const &name, String8 &value) const = 0;
     81     virtual status_t getPropertyByteArray(String8 const &name,
     82                                           Vector<uint8_t> &value) const = 0;
     83     virtual status_t setPropertyString(String8 const &name,
     84                                        String8 const &value ) const = 0;
     85     virtual status_t setPropertyByteArray(String8 const &name,
     86                                           Vector<uint8_t> const &value) const = 0;
     87 
     88     virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
     89                                         String8 const &algorithm) = 0;
     90 
     91     virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
     92                                      String8 const &algorithm) = 0;
     93 
     94     virtual status_t encrypt(Vector<uint8_t> const &sessionId,
     95                              Vector<uint8_t> const &keyId,
     96                              Vector<uint8_t> const &input,
     97                              Vector<uint8_t> const &iv,
     98                              Vector<uint8_t> &output) = 0;
     99 
    100     virtual status_t decrypt(Vector<uint8_t> const &sessionId,
    101                              Vector<uint8_t> const &keyId,
    102                              Vector<uint8_t> const &input,
    103                              Vector<uint8_t> const &iv,
    104                              Vector<uint8_t> &output) = 0;
    105 
    106     virtual status_t sign(Vector<uint8_t> const &sessionId,
    107                           Vector<uint8_t> const &keyId,
    108                           Vector<uint8_t> const &message,
    109                           Vector<uint8_t> &signature) = 0;
    110 
    111     virtual status_t verify(Vector<uint8_t> const &sessionId,
    112                             Vector<uint8_t> const &keyId,
    113                             Vector<uint8_t> const &message,
    114                             Vector<uint8_t> const &signature,
    115                             bool &match) = 0;
    116 
    117     virtual status_t signRSA(Vector<uint8_t> const &sessionId,
    118                              String8 const &algorithm,
    119                              Vector<uint8_t> const &message,
    120                              Vector<uint8_t> const &wrappedKey,
    121                              Vector<uint8_t> &signature) = 0;
    122 
    123     virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
    124 
    125 private:
    126     DISALLOW_EVIL_CONSTRUCTORS(IDrm);
    127 };
    128 
    129 struct BnDrm : public BnInterface<IDrm> {
    130     virtual status_t onTransact(
    131             uint32_t code, const Parcel &data, Parcel *reply,
    132             uint32_t flags = 0);
    133 private:
    134     void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
    135     void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
    136 };
    137 
    138 }  // namespace android
    139 
    140 #endif // ANDROID_IDRM_H_
    141