blob: 34b2ca5170f9f20364df4bbf8000eaa686f44159 [file] [log] [blame]
/*
* Copyright (C) 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 <mutex>
#include <binder/PermissionController.h>
#include <binder/Binder.h>
#include <binder/IServiceManager.h>
#include <utils/SystemClock.h>
namespace android {
PermissionController::PermissionController()
{
}
sp<IPermissionController> PermissionController::getService()
{
std::lock_guard<Mutex> scoped_lock(mLock);
int64_t startTime = 0;
sp<IPermissionController> service = mService;
while (service == nullptr || !IInterface::asBinder(service)->isBinderAlive()) {
sp<IBinder> binder = defaultServiceManager()->checkService(String16("permission"));
if (binder == nullptr) {
// Wait for the activity service to come back...
if (startTime == 0) {
startTime = uptimeMillis();
ALOGI("Waiting for permission service");
} else if ((uptimeMillis() - startTime) > 10000) {
ALOGW("Waiting too long for permission service, giving up");
service = nullptr;
break;
}
sleep(1);
} else {
service = interface_cast<IPermissionController>(binder);
mService = service;
}
}
return service;
}
bool PermissionController::checkPermission(const String16& permission, int32_t pid, int32_t uid)
{
sp<IPermissionController> service = getService();
return service != nullptr ? service->checkPermission(permission, pid, uid) : false;
}
int32_t PermissionController::noteOp(const String16& op, int32_t uid, const String16& packageName)
{
sp<IPermissionController> service = getService();
return service != nullptr ? service->noteOp(op, uid, packageName) : MODE_ERRORED;
}
void PermissionController::getPackagesForUid(const uid_t uid, Vector<String16> &packages)
{
sp<IPermissionController> service = getService();
if (service != nullptr) {
service->getPackagesForUid(uid, packages);
}
}
bool PermissionController::isRuntimePermission(const String16& permission)
{
sp<IPermissionController> service = getService();
return service != nullptr ? service->isRuntimePermission(permission) : false;
}
int PermissionController::getPackageUid(const String16& package, int flags)
{
sp<IPermissionController> service = getService();
return service != nullptr ? service->getPackageUid(package, flags) : -1;
}
}; // namespace android