| /* |
| * Copyright 2019, 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. |
| */ |
| |
| #pragma once |
| |
| #include "result.h" |
| |
| #include <netlink/netlink.h> |
| |
| #include <type_traits> |
| |
| class NetlinkMessage { |
| public: |
| NetlinkMessage(); |
| NetlinkMessage(NetlinkMessage&& other); |
| ~NetlinkMessage(); |
| |
| NetlinkMessage& operator=(NetlinkMessage&& other); |
| |
| bool initGeneric(int family, uint8_t command, int version); |
| |
| template<typename T, |
| typename = typename std::enable_if<!std::is_pointer<T>::value>::type> |
| bool addAttribute(int attribute, const T& value) { |
| return nla_put(mMessage, attribute, sizeof(T), &value) == 0; |
| } |
| template<typename T, |
| typename = typename std::enable_if<std::is_pointer<T>::value>::type> |
| bool addAttribute(int attribute, T data, size_t numElements) { |
| return nla_put(mMessage, |
| attribute, |
| sizeof(*data) * numElements, |
| data) == 0; |
| } |
| |
| uint32_t getSeqNum() const; |
| |
| struct nl_msg* get() { return mMessage; } |
| |
| private: |
| NetlinkMessage(const NetlinkMessage&) = delete; |
| NetlinkMessage& operator=(const NetlinkMessage&) = delete; |
| |
| struct nl_msg* mMessage = nullptr; |
| }; |
| |