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
keystore_get(const char * key,size_t keyLength,uint8_t ** value)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), 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