/* *	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[0];}; struct igmpv3_report {	__u8 type;	__u8 resv1;	__be16 csum;	__be16 resv2;	__be16 ngrec;	struct igmpv3_grec grec[0];}; struct igmpv3_query {	__u8 type;	__u8 code;	__be16 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[0];}; #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  /* *	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 */