111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
/*
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* Copyright (C) 2005 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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#define LOG_TAG "PermissionController"
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#include <binder/IPermissionController.h>
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#include <utils/Log.h>
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#include <binder/Parcel.h>
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#include <utils/String8.h>
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#include <private/binder/Static.h>
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namespace android {
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// ----------------------------------------------------------------------
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class BpPermissionController : public BpInterface<IPermissionController>
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{
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public:
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BpPermissionController(const sp<IBinder>& impl)
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: BpInterface<IPermissionController>(impl)
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{
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}
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virtual bool checkPermission(const String16& permission, int32_t pid, int32_t uid)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor());
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data.writeString16(permission);
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data.writeInt32(pid);
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data.writeInt32(uid);
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remote()->transact(CHECK_PERMISSION_TRANSACTION, data, &reply);
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// fail on exception
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if (reply.readExceptionCode() != 0) return 0;
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return reply.readInt32() != 0;
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}
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virtual void getPackagesForUid(const uid_t uid, Vector<String16>& packages)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor());
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data.writeInt32(uid);
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remote()->transact(GET_PACKAGES_FOR_UID_TRANSACTION, data, &reply);
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// fail on exception
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if (reply.readExceptionCode() != 0) {
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return;
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}
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const int32_t size = reply.readInt32();
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if (size <= 0) {
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return;
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}
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for (int i = 0; i < size; i++) {
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packages.push(reply.readString16());
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}
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}
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};
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IMPLEMENT_META_INTERFACE(PermissionController, "android.os.IPermissionController");
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// ----------------------------------------------------------------------
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status_t BnPermissionController::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case CHECK_PERMISSION_TRANSACTION: {
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CHECK_INTERFACE(IPermissionController, data, reply);
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String16 permission = data.readString16();
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int32_t pid = data.readInt32();
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int32_t uid = data.readInt32();
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bool res = checkPermission(permission, pid, uid);
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reply->writeNoException();
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reply->writeInt32(res ? 1 : 0);
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return NO_ERROR;
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} break;
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case GET_PACKAGES_FOR_UID_TRANSACTION: {
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CHECK_INTERFACE(IPermissionController, data, reply);
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int32_t uid = data.readInt32();
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Vector<String16> packages;
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getPackagesForUid(uid, packages);
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reply->writeNoException();
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size_t size = packages.size();
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reply->writeInt32(size);
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for (size_t i = 0; i < size; i++) {
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reply->writeString16(packages[i]);
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}
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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}; // namespace android
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