| /* |
| * Copyright (C) 2005 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. |
| */ |
| |
| #define LOG_TAG "PermissionController" |
| |
| #include <binder/IPermissionController.h> |
| |
| #include <utils/Log.h> |
| #include <binder/Parcel.h> |
| #include <utils/String8.h> |
| |
| #include <private/binder/Static.h> |
| |
| namespace android { |
| |
| // ---------------------------------------------------------------------- |
| |
| class BpPermissionController : public BpInterface<IPermissionController> |
| { |
| public: |
| explicit BpPermissionController(const sp<IBinder>& impl) |
| : BpInterface<IPermissionController>(impl) |
| { |
| } |
| |
| virtual bool checkPermission(const String16& permission, int32_t pid, int32_t uid) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor()); |
| data.writeString16(permission); |
| data.writeInt32(pid); |
| data.writeInt32(uid); |
| remote()->transact(CHECK_PERMISSION_TRANSACTION, data, &reply); |
| // fail on exception |
| if (reply.readExceptionCode() != 0) return 0; |
| return reply.readInt32() != 0; |
| } |
| |
| virtual int32_t noteOp(const String16& op, int32_t uid, const String16& packageName) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor()); |
| data.writeString16(op); |
| data.writeInt32(uid); |
| data.writeString16(packageName); |
| remote()->transact(NOTE_OP_TRANSACTION, data, &reply); |
| // fail on exception |
| if (reply.readExceptionCode() != 0) return 2; // MODE_ERRORED |
| return reply.readInt32(); |
| } |
| |
| virtual void getPackagesForUid(const uid_t uid, Vector<String16>& packages) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor()); |
| data.writeInt32(uid); |
| remote()->transact(GET_PACKAGES_FOR_UID_TRANSACTION, data, &reply); |
| // fail on exception |
| if (reply.readExceptionCode() != 0) { |
| return; |
| } |
| const int32_t size = reply.readInt32(); |
| if (size <= 0) { |
| return; |
| } |
| for (int i = 0; i < size; i++) { |
| packages.push(reply.readString16()); |
| } |
| } |
| |
| virtual bool isRuntimePermission(const String16& permission) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor()); |
| data.writeString16(permission); |
| remote()->transact(IS_RUNTIME_PERMISSION_TRANSACTION, data, &reply); |
| // fail on exception |
| if (reply.readExceptionCode() != 0) return false; |
| return reply.readInt32() != 0; |
| } |
| |
| virtual int getPackageUid(const String16& package, int flags) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor()); |
| data.writeString16(package); |
| data.writeInt32(flags); |
| remote()->transact(GET_PACKAGE_UID_TRANSACTION, data, &reply); |
| // fail on exception |
| if (reply.readExceptionCode() != 0) return false; |
| return reply.readInt32(); |
| } |
| }; |
| |
| IMPLEMENT_META_INTERFACE(PermissionController, "android.os.IPermissionController"); |
| |
| // ---------------------------------------------------------------------- |
| |
| status_t BnPermissionController::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| switch(code) { |
| case CHECK_PERMISSION_TRANSACTION: { |
| CHECK_INTERFACE(IPermissionController, data, reply); |
| String16 permission = data.readString16(); |
| int32_t pid = data.readInt32(); |
| int32_t uid = data.readInt32(); |
| bool res = checkPermission(permission, pid, uid); |
| reply->writeNoException(); |
| reply->writeInt32(res ? 1 : 0); |
| return NO_ERROR; |
| } break; |
| |
| case NOTE_OP_TRANSACTION: { |
| CHECK_INTERFACE(IPermissionController, data, reply); |
| String16 op = data.readString16(); |
| int32_t uid = data.readInt32(); |
| String16 packageName = data.readString16(); |
| int32_t res = noteOp(op, uid, packageName); |
| reply->writeNoException(); |
| reply->writeInt32(res); |
| return NO_ERROR; |
| } break; |
| |
| case GET_PACKAGES_FOR_UID_TRANSACTION: { |
| CHECK_INTERFACE(IPermissionController, data, reply); |
| int32_t uid = data.readInt32(); |
| Vector<String16> packages; |
| getPackagesForUid(uid, packages); |
| reply->writeNoException(); |
| size_t size = packages.size(); |
| reply->writeInt32(size); |
| for (size_t i = 0; i < size; i++) { |
| reply->writeString16(packages[i]); |
| } |
| return NO_ERROR; |
| } break; |
| |
| case IS_RUNTIME_PERMISSION_TRANSACTION: { |
| CHECK_INTERFACE(IPermissionController, data, reply); |
| String16 permission = data.readString16(); |
| const bool res = isRuntimePermission(permission); |
| reply->writeNoException(); |
| reply->writeInt32(res ? 1 : 0); |
| return NO_ERROR; |
| } break; |
| |
| case GET_PACKAGE_UID_TRANSACTION: { |
| CHECK_INTERFACE(IPermissionController, data, reply); |
| String16 package = data.readString16(); |
| int flags = data.readInt32(); |
| const int uid = getPackageUid(package, flags); |
| reply->writeNoException(); |
| reply->writeInt32(uid); |
| return NO_ERROR; |
| } break; |
| |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| }; // namespace android |