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      1 /*
      2  * Copyright (C) 2014 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 //#define LOG_NDEBUG 0
     18 #define LOG_TAG "ClearKeyCryptoFactory"
     19 #include <utils/Log.h>
     20 
     21 #include <utils/Errors.h>
     22 #include <utils/StrongPointer.h>
     23 
     24 #include "CryptoFactory.h"
     25 
     26 #include "ClearKeyUUID.h"
     27 #include "CryptoPlugin.h"
     28 #include "Session.h"
     29 #include "SessionLibrary.h"
     30 
     31 namespace clearkeydrm {
     32 
     33 bool CryptoFactory::isCryptoSchemeSupported(const uint8_t uuid[16]) const {
     34     return isClearKeyUUID(uuid);
     35 }
     36 
     37 android::status_t CryptoFactory::createPlugin(
     38         const uint8_t uuid[16],
     39         const void* data, size_t size,
     40         android::CryptoPlugin** plugin) {
     41     if (!isCryptoSchemeSupported(uuid)) {
     42         *plugin = NULL;
     43         return android::BAD_VALUE;
     44     }
     45 
     46     android::Vector<uint8_t> sessionId;
     47     sessionId.appendArray(reinterpret_cast<const uint8_t*>(data), size);
     48 
     49     CryptoPlugin *clearKeyPlugin = new CryptoPlugin(sessionId);
     50     android::status_t result = clearKeyPlugin->getInitStatus();
     51     if (result == android::OK) {
     52         *plugin = clearKeyPlugin;
     53     } else {
     54         delete clearKeyPlugin;
     55         *plugin = NULL;
     56     }
     57     return result;
     58 }
     59 
     60 } // namespace clearkeydrm
     61