130 lines
5.3 KiB
C
130 lines
5.3 KiB
C
/* $NetBSD: igmp.h,v 1.11 2007/12/25 18:33:46 perry Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Stephen Deering of Stanford University.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)igmp.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1988 Stephen Deering.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Stephen Deering of Stanford University.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)igmp.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
#ifndef _NETINET_IGMP_H_
|
|
#define _NETINET_IGMP_H_
|
|
|
|
/*
|
|
* Internet Group Management Protocol (IGMP) definitions.
|
|
*
|
|
* MULTICAST 1.3
|
|
*/
|
|
|
|
/*
|
|
* IGMP packet format.
|
|
*/
|
|
struct igmp {
|
|
u_int8_t igmp_type; /* version & type of IGMP message */
|
|
u_int8_t igmp_code; /* code for routing sub-messages */
|
|
u_int16_t igmp_cksum; /* IP-style checksum */
|
|
struct in_addr igmp_group; /* group address being reported */
|
|
} __packed; /* (zero for queries) */
|
|
|
|
#define IGMP_MINLEN 8
|
|
|
|
#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* membership query */
|
|
#define IGMP_v1_HOST_MEMBERSHIP_REPORT 0x12 /* v1 membership report */
|
|
#define IGMP_DVMRP 0x13 /* DVMRP routing message */
|
|
#define IGMP_PIM 0x14 /* PIM routing message */
|
|
#define IGMP_v2_HOST_MEMBERSHIP_REPORT 0x16 /* v2 membership report */
|
|
#define IGMP_HOST_LEAVE_MESSAGE 0x17 /* leave-group message */
|
|
#define IGMP_MTRACE_REPLY 0x1e /* traceroute reply */
|
|
#define IGMP_MTRACE_QUERY 0x1f /* traceroute query */
|
|
|
|
#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */
|
|
/* query (in seconds) */
|
|
|
|
#define IGMP_TIMER_SCALE 10 /* denominator for igmp_timer */
|
|
|
|
/*
|
|
* States for the IGMP v2 state table.
|
|
*/
|
|
#define IGMP_DELAYING_MEMBER 1
|
|
#define IGMP_IDLE_MEMBER 2
|
|
#define IGMP_LAZY_MEMBER 3
|
|
#define IGMP_SLEEPING_MEMBER 4
|
|
#define IGMP_AWAKENING_MEMBER 5
|
|
|
|
/*
|
|
* States for IGMP router version cache.
|
|
*/
|
|
#define IGMP_v1_ROUTER 1
|
|
#define IGMP_v2_ROUTER 2
|
|
|
|
/*
|
|
* Revert to v2 if we haven't heard from the router in this amount of time.
|
|
*/
|
|
#define IGMP_AGE_THRESHOLD 540
|
|
|
|
#endif /* !_NETINET_IGMP_H_ */
|