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 "ClearKeyCryptoPlugin" 19#include <utils/Log.h> 20 21#include <media/stagefright/MediaErrors.h> 22#include <utils/StrongPointer.h> 23 24#include "DrmPlugin.h" 25 26#include "Session.h" 27 28namespace clearkeydrm { 29 30using android::sp; 31 32status_t DrmPlugin::openSession(Vector<uint8_t>& sessionId) { 33 sp<Session> session = mSessionLibrary->createSession(); 34 sessionId = session->sessionId(); 35 return android::OK; 36} 37 38status_t DrmPlugin::closeSession(const Vector<uint8_t>& sessionId) { 39 sp<Session> session = mSessionLibrary->findSession(sessionId); 40 if (sessionId.size() == 0) { 41 return android::BAD_VALUE; 42 } 43 if (session.get()) { 44 mSessionLibrary->destroySession(session); 45 return android::OK; 46 } 47 return android::ERROR_DRM_SESSION_NOT_OPENED; 48} 49 50status_t DrmPlugin::getKeyRequest( 51 const Vector<uint8_t>& scope, 52 const Vector<uint8_t>& initData, 53 const String8& mimeType, 54 KeyType keyType, 55 const KeyedVector<String8, String8>& optionalParameters, 56 Vector<uint8_t>& request, 57 String8& defaultUrl, 58 DrmPlugin::KeyRequestType *keyRequestType) { 59 UNUSED(optionalParameters); 60 if (scope.size() == 0) { 61 return android::BAD_VALUE; 62 } 63 if (keyType != kKeyType_Streaming) { 64 return android::ERROR_DRM_CANNOT_HANDLE; 65 } 66 *keyRequestType = DrmPlugin::kKeyRequestType_Initial; 67 defaultUrl.clear(); 68 sp<Session> session = mSessionLibrary->findSession(scope); 69 if (!session.get()) { 70 return android::ERROR_DRM_SESSION_NOT_OPENED; 71 } 72 return session->getKeyRequest(initData, mimeType, &request); 73} 74 75status_t DrmPlugin::provideKeyResponse( 76 const Vector<uint8_t>& scope, 77 const Vector<uint8_t>& response, 78 Vector<uint8_t>& keySetId) { 79 if (scope.size() == 0 || response.size() == 0) { 80 return android::BAD_VALUE; 81 } 82 sp<Session> session = mSessionLibrary->findSession(scope); 83 if (!session.get()) { 84 return android::ERROR_DRM_SESSION_NOT_OPENED; 85 } 86 status_t res = session->provideKeyResponse(response); 87 if (res == android::OK) { 88 // This is for testing AMediaDrm_setOnEventListener only. 89 sendEvent(kDrmPluginEventVendorDefined, 0, &scope, NULL); 90 keySetId.clear(); 91 } 92 return res; 93} 94 95status_t DrmPlugin::getPropertyString( 96 const String8& name, String8& value) const { 97 if (name == "vendor") { 98 value = "Google"; 99 } else if (name == "version") { 100 value = "1.0"; 101 } else if (name == "description") { 102 value = "ClearKey CDM"; 103 } else if (name == "algorithms") { 104 value = ""; 105 } else if (name == "listenerTestSupport") { 106 value = "true"; 107 } else { 108 ALOGE("App requested unknown string property %s", name.string()); 109 return android::ERROR_DRM_CANNOT_HANDLE; 110 } 111 return android::OK; 112} 113 114} // namespace clearkeydrm 115