60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
/*
|
|
** Copyright 2018, The Android Open Source Project
|
|
**
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
**
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
**
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
|
|
#define LOG_TAG "wait_for_strongbox"
|
|
#include <android-base/logging.h>
|
|
|
|
#include <keymasterV4_1/Keymaster.h>
|
|
|
|
using android::hardware::keymaster::V4_1::SecurityLevel;
|
|
using android::hardware::keymaster::V4_1::support::Keymaster;
|
|
|
|
useconds_t kWaitTimeMicroseconds = 1 * 1000; // 1 milliseconds
|
|
|
|
int main() {
|
|
for (unsigned cycleCount = 0; /* Forever */; ++cycleCount) {
|
|
auto keymasters = Keymaster::enumerateAvailableDevices();
|
|
|
|
bool foundStrongBox = false;
|
|
bool foundTee = false;
|
|
for (auto &dev : keymasters) {
|
|
SecurityLevel securityLevel = dev->halVersion().securityLevel;
|
|
uint8_t majorVersion = dev->halVersion().majorVersion;
|
|
if (securityLevel == SecurityLevel::STRONGBOX && majorVersion == 4) {
|
|
foundStrongBox = true;
|
|
}
|
|
if (securityLevel == SecurityLevel::TRUSTED_ENVIRONMENT && majorVersion == 4) {
|
|
foundTee = true;
|
|
}
|
|
}
|
|
|
|
if (foundTee && foundStrongBox) {
|
|
return 0;
|
|
}
|
|
if (cycleCount % 10 == 1) {
|
|
if (!foundStrongBox) {
|
|
LOG(WARNING) << "Still waiting for StrongBox Keymaster";
|
|
}
|
|
if (!foundTee) {
|
|
LOG(WARNING) << "Still waiting for TEE Keymaster";
|
|
}
|
|
}
|
|
usleep(kWaitTimeMicroseconds);
|
|
}
|
|
}
|