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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note *//* * Linux NET3: Internet Group Management Protocol [IGMP] * * Authors: * Alan Cox <alan@lxorguk.ukuu.org.uk> * * Extended to talk the BSD extended IGMP protocol of mrouted 3.6 * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */
#ifndef _UAPI_LINUX_IGMP_H#define _UAPI_LINUX_IGMP_H
#include <linux/types.h>#include <asm/byteorder.h>
/* * IGMP protocol structures */
/* * Header in on cable format */
struct igmphdr { __u8 type; __u8 code; /* For newer IGMP */ __sum16 csum; __be32 group;};
/* V3 group record types [grec_type] */#define IGMPV3_MODE_IS_INCLUDE 1#define IGMPV3_MODE_IS_EXCLUDE 2#define IGMPV3_CHANGE_TO_INCLUDE 3#define IGMPV3_CHANGE_TO_EXCLUDE 4#define IGMPV3_ALLOW_NEW_SOURCES 5#define IGMPV3_BLOCK_OLD_SOURCES 6
struct igmpv3_grec { __u8 grec_type; __u8 grec_auxwords; __be16 grec_nsrcs; __be32 grec_mca; __be32 grec_src[];};
struct igmpv3_report { __u8 type; __u8 resv1; __sum16 csum; __be16 resv2; __be16 ngrec; struct igmpv3_grec grec[];};
struct igmpv3_query { __u8 type; __u8 code; __sum16 csum; __be32 group;#if defined(__LITTLE_ENDIAN_BITFIELD) __u8 qrv:3, suppress:1, resv:4;#elif defined(__BIG_ENDIAN_BITFIELD) __u8 resv:4, suppress:1, qrv:3;#else#error "Please fix <asm/byteorder.h>"#endif __u8 qqic; __be16 nsrcs; __be32 srcs[];};
#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* From RFC1112 */#define IGMP_HOST_MEMBERSHIP_REPORT 0x12 /* Ditto */#define IGMP_DVMRP 0x13 /* DVMRP routing */#define IGMP_PIM 0x14 /* PIM routing */#define IGMP_TRACE 0x15#define IGMPV2_HOST_MEMBERSHIP_REPORT 0x16 /* V2 version of 0x12 */#define IGMP_HOST_LEAVE_MESSAGE 0x17#define IGMPV3_HOST_MEMBERSHIP_REPORT 0x22 /* V3 version of 0x12 */
#define IGMP_MTRACE_RESP 0x1e#define IGMP_MTRACE 0x1f
#define IGMP_MRDISC_ADV 0x30 /* From RFC4286 */
/* * Use the BSD names for these for compatibility */
#define IGMP_DELAYING_MEMBER 0x01#define IGMP_IDLE_MEMBER 0x02#define IGMP_LAZY_MEMBER 0x03#define IGMP_SLEEPING_MEMBER 0x04#define IGMP_AWAKENING_MEMBER 0x05
#define IGMP_MINLEN 8
#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ /* query (in seconds) */
#define IGMP_TIMER_SCALE 10 /* denotes that the igmphdr->timer field */ /* specifies time in 10th of seconds */
#define IGMP_AGE_THRESHOLD 400 /* If this host don't hear any IGMP V1 */ /* message in this period of time, */ /* revert to IGMP v2 router. */
#define IGMP_ALL_HOSTS htonl(0xE0000001L)#define IGMP_ALL_ROUTER htonl(0xE0000002L)#define IGMPV3_ALL_MCR htonl(0xE0000016L)#define IGMP_LOCAL_GROUP htonl(0xE0000000L)#define IGMP_LOCAL_GROUP_MASK htonl(0xFFFFFF00L)
/* * struct for keeping the multicast list in */
#endif /* _UAPI_LINUX_IGMP_H */