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89 lines
2.9 KiB
89 lines
2.9 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <mutex>
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#include <binder/PermissionController.h>
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#include <binder/Binder.h>
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#include <binder/IServiceManager.h>
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#include <utils/SystemClock.h>
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namespace android {
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PermissionController::PermissionController()
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{
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}
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sp<IPermissionController> PermissionController::getService()
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{
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std::lock_guard<Mutex> scoped_lock(mLock);
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int64_t startTime = 0;
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sp<IPermissionController> service = mService;
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while (service == nullptr || !IInterface::asBinder(service)->isBinderAlive()) {
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sp<IBinder> binder = defaultServiceManager()->checkService(String16("permission"));
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if (binder == nullptr) {
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// Wait for the activity service to come back...
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if (startTime == 0) {
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startTime = uptimeMillis();
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ALOGI("Waiting for permission service");
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} else if ((uptimeMillis() - startTime) > 10000) {
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ALOGW("Waiting too long for permission service, giving up");
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service = nullptr;
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break;
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}
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sleep(1);
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} else {
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service = interface_cast<IPermissionController>(binder);
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mService = service;
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}
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}
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return service;
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}
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bool PermissionController::checkPermission(const String16& permission, int32_t pid, int32_t uid)
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{
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sp<IPermissionController> service = getService();
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return service != nullptr ? service->checkPermission(permission, pid, uid) : false;
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}
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int32_t PermissionController::noteOp(const String16& op, int32_t uid, const String16& packageName)
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{
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sp<IPermissionController> service = getService();
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return service != nullptr ? service->noteOp(op, uid, packageName) : MODE_ERRORED;
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}
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void PermissionController::getPackagesForUid(const uid_t uid, Vector<String16> &packages)
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{
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sp<IPermissionController> service = getService();
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if (service != nullptr) {
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service->getPackagesForUid(uid, packages);
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}
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}
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bool PermissionController::isRuntimePermission(const String16& permission)
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{
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sp<IPermissionController> service = getService();
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return service != nullptr ? service->isRuntimePermission(permission) : false;
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}
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int PermissionController::getPackageUid(const String16& package, int flags)
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{
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sp<IPermissionController> service = getService();
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return service != nullptr ? service->getPackageUid(package, flags) : -1;
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}
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} // namespace android
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