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Elliott Hughes72962742024-06-17 15:38:29 +00001/*
2 * Copyright (C) 2024 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#pragma once
30
31/**
32 * @file netinet/igmp.h
33 * @brief Internet Group Management Protocol (IGMP).
34 */
35
36#include <sys/cdefs.h>
37#include <netinet/in.h>
38
39#include <linux/igmp.h>
40
41/**
42 * The uapi type is called `igmphdr`,
43 * doesn't have the `igmp_` prefix on each field,
44 * and uses a `__be32` for the group address.
45 *
46 * This is the type that BSDs and musl/glibc expose to userspace.
47 */
48struct igmp {
49 uint8_t igmp_type;
50 uint8_t igmp_code;
51 uint16_t igmp_cksum;
52 struct in_addr igmp_group;
53};
54
55/** Commonly-used BSD synonym for the Linux constant. */
56#define IGMP_MEMBERSHIP_QUERY IGMP_HOST_MEMBERSHIP_QUERY