1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef NETUTILS_NETLINK_H 18 #define NETUTILS_NETLINK_H 19 20 #include <functional> 21 #include <ostream> 22 #include <linux/netlink.h> 23 24 #include "netdutils/Slice.h" 25 26 namespace android { 27 namespace netdutils { 28 29 // Invoke onMsg once for each netlink message in buf. onMsg will be 30 // invoked with an aligned and deserialized header along with a Slice 31 // containing the message payload. 32 // 33 // Assume that the first message begins at offset zero within buf. 34 void forEachNetlinkMessage(const Slice buf, 35 const std::function<void(const nlmsghdr&, const Slice)>& onMsg); 36 37 // Invoke onAttr once for each netlink attribute in buf. onAttr will be 38 // invoked with an aligned and deserialized header along with a Slice 39 // containing the attribute payload. 40 // 41 // Assume that the first attribute begins at offset zero within buf. 42 void forEachNetlinkAttribute(const Slice buf, 43 const std::function<void(const nlattr&, const Slice)>& onAttr); 44 45 } // namespace netdutils 46 } // namespace android 47 48 bool operator==(const sockaddr_nl& lhs, const sockaddr_nl& rhs); 49 bool operator!=(const sockaddr_nl& lhs, const sockaddr_nl& rhs); 50 51 std::ostream& operator<<(std::ostream& os, const nlmsghdr& hdr); 52 std::ostream& operator<<(std::ostream& os, const nlattr& attr); 53 std::ostream& operator<<(std::ostream& os, const sockaddr_nl& addr); 54 55 #endif /* NETUTILS_NETLINK_H */ 56