Netlink.h revision f3fa5cc9032d5f12b284e756993736b241a24b68 
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
26namespace android {
27namespace 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.
34void 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.
42void forEachNetlinkAttribute(const Slice buf,
43                             const std::function<void(const nlattr&, const Slice)>& onAttr);
44
45}  // namespace netdutils
46}  // namespace android
47
48bool operator==(const sockaddr_nl& lhs, const sockaddr_nl& rhs);
49bool operator!=(const sockaddr_nl& lhs, const sockaddr_nl& rhs);
50
51std::ostream& operator<<(std::ostream& os, const nlmsghdr& hdr);
52std::ostream& operator<<(std::ostream& os, const nlattr& attr);
53std::ostream& operator<<(std::ostream& os, const sockaddr_nl& addr);
54
55#endif /* NETUTILS_NETLINK_H */
56