libc/include/netinet/igmp.h

/*
 * Copyright (C) 2024 The Android Open Source Project
 * All rights reserved.
 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#pragma once

/**
 * @file netinet/igmp.h
 * @brief Internet Group Management Protocol (IGMP).
 */

#include <sys/cdefs.h>
#include <netinet/in.h>

#include <linux/igmp.h>

/**
 * The uapi type is called `igmphdr`,
 * doesn't have the `igmp_` prefix on each field,
 * and uses a `__be32` for the group address.
 *
 * This is the type that BSDs and musl/glibc expose to userspace.
 */
struct igmp {
  uint8_t igmp_type;
  uint8_t igmp_code;
  uint16_t igmp_cksum;
  struct in_addr igmp_group;
};

/** Commonly-used BSD synonym for the Linux constant. */
#define IGMP_MEMBERSHIP_QUERY IGMP_HOST_MEMBERSHIP_QUERY