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      1 /*
      2  * Copyright (C) 2018 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 "hidl_ClearKeyCryptoFactory"
     19 #include <utils/Log.h>
     20 
     21 #include "CryptoFactory.h"
     22 
     23 #include "ClearKeyUUID.h"
     24 #include "CryptoPlugin.h"
     25 #include "TypeConvert.h"
     26 
     27 namespace android {
     28 namespace hardware {
     29 namespace drm {
     30 namespace V1_1 {
     31 namespace clearkey {
     32 
     33 Return<bool> CryptoFactory::isCryptoSchemeSupported(
     34     const hidl_array<uint8_t, 16> &uuid)
     35 {
     36     return clearkeydrm::isClearKeyUUID(uuid.data());
     37 }
     38 
     39 Return<void> CryptoFactory::createPlugin(
     40     const hidl_array<uint8_t, 16> &uuid,
     41     const hidl_vec<uint8_t> &initData,
     42     createPlugin_cb _hidl_cb) {
     43 
     44     if (!isCryptoSchemeSupported(uuid.data())) {
     45         ALOGE("Clearkey Drm HAL: failed to create clearkey plugin, " \
     46                 "invalid crypto scheme");
     47         _hidl_cb(Status::BAD_VALUE, nullptr);
     48         return Void();
     49     }
     50 
     51     CryptoPlugin *cryptoPlugin = new CryptoPlugin(initData);
     52     Status status = cryptoPlugin->getInitStatus();
     53     if (status == Status::OK) {
     54         _hidl_cb(Status::OK, cryptoPlugin);
     55     } else {
     56         delete cryptoPlugin;
     57         _hidl_cb(status, nullptr);
     58     }
     59     return Void();
     60 }
     61 
     62 } // namespace clearkey
     63 } // namespace V1_1
     64 } // namespace drm
     65 } // namespace hardware
     66 } // namespace android
     67 
     68