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 <keystore/IKeystoreService.h> 18 #include <binder/IServiceManager.h> 19 20 #include <keystore/keystore_get.h> 21 22 using namespace android; 23 24 ssize_t keystore_get(const char *key, size_t keyLength, uint8_t** value) { 25 sp<IServiceManager> sm = defaultServiceManager(); 26 sp<IBinder> binder = sm->getService(String16("android.security.keystore")); 27 sp<IKeystoreService> service = interface_cast<IKeystoreService>(binder); 28 29 if (service == NULL) { 30 return -1; 31 } 32 33 size_t valueLength; 34 int32_t ret = service->get(String16(key, keyLength), -1, value, &valueLength); 35 if (ret < 0) { 36 return -1; 37 } else if (ret != ::NO_ERROR) { 38 return -1; 39 } else { 40 return valueLength; 41 } 42 } 43
