1 /*
2 ** Copyright 2017, 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 <keymasterV4_1/Keymaster4.h>
18 
19 #include <android-base/logging.h>
20 
21 namespace android::hardware::keymaster::V4_1::support {
22 
getVersionIfNeeded()23 void Keymaster4::getVersionIfNeeded() {
24     if (haveVersion_) return;
25 
26     auto rc = km4_0_dev_->getHardwareInfo([&](SecurityLevel securityLevel,
27                                               const hidl_string& keymasterName,
28                                               const hidl_string& authorName) {
29         version_ = {keymasterName,
30                     authorName,
31                     4 /* major version */,
32                     static_cast<uint8_t>((km4_1_dev_) ? 1 : 0) /* minor version */,
33                     securityLevel,
34                     true /* supportsEc */};
35         haveVersion_ = true;
36     });
37 
38     CHECK(rc.isOk()) << "Got error " << rc.description() << " trying to get hardware info";
39 }
40 
41 }  // namespace android::hardware::keymaster::V4_1::support
42