1 /* 2 ** 3 ** Copyright 2017, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include <keymasterV4_0/Keymaster4.h> 19 20 #include <android-base/logging.h> 21 22 namespace android { 23 namespace hardware { 24 namespace keymaster { 25 namespace V4_0 { 26 namespace support { 27 28 void Keymaster4::getVersionIfNeeded() { 29 if (haveVersion_) return; 30 31 auto rc = 32 dev_->getHardwareInfo([&](SecurityLevel securityLevel, const hidl_string& keymasterName, 33 const hidl_string& authorName) { 34 version_ = {keymasterName, authorName, 4 /* major version */, securityLevel, 35 true /* supportsEc */}; 36 haveVersion_ = true; 37 }); 38 39 CHECK(rc.isOk()) << "Got error " << rc.description() << " trying to get hardware info"; 40 } 41 42 } // namespace support 43 } // namespace V4_0 44 } // namespace keymaster 45 } // namespace hardware 46 } // namespace android 47
