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igmp_var.h
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igmp_var.h
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/* $NetBSD: igmp_var.h,v 1.23 2008/04/15 16:02:03 thorpej 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_var.h 8.1 (Berkeley) 7/19/93
*/
/*
* 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_var.h 8.1 (Berkeley) 7/19/93
*/
#ifndef _NETINET_IGMP_VAR_H_
#define _NETINET_IGMP_VAR_H_
/*
* Internet Group Management Protocol (IGMP),
* implementation-specific definitions.
*
* Written by Steve Deering, Stanford, May 1988.
* Modified by Rosen Sharma, Stanford, Aug 1994.
* Modified by Bill Fenner, Xerox PARC, Feb 1995.
*
* MULTICAST 1.3
*/
#define IGMP_STAT_RCV_TOTAL 1 /* total IGMP messages received */
#define IGMP_STAT_RCV_TOOSHORT 2 /* received with too few bytes */
#define IGMP_STAT_RCV_BADSUM 3 /* received with bad checksum */
#define IGMP_STAT_RCV_QUERIES 4 /* received membership queries */
#define IGMP_STAT_RCV_BADQUERIES 5 /* received invalid queries */
#define IGMP_STAT_RCV_REPORTS 6 /* received membership reports */
#define IGMP_STAT_RCV_BADREPORTS 7 /* received invalid reports */
#define IGMP_STAT_RCV_OURREPORTS 8 /* received reports for our groups */
#define IGMP_STAT_SND_REPORTS 9 /* sent membership reports */
#define IGMP_NSTATS 10
#ifdef _KERNEL
/*
* Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
* DELAY * countdown frequency). We assume that the routine random()
* is defined somewhere (and that it returns a positive number).
*/
#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
#ifdef __NO_STRICT_ALIGNMENT
#define IGMP_HDR_ALIGNED_P(ig) 1
#else
#define IGMP_HDR_ALIGNED_P(ig) ((((vaddr_t) (ig)) & 3) == 0)
#endif
void igmp_init(void);
void igmp_input(struct mbuf *, ...);
int igmp_joingroup(struct in_multi *);
void igmp_leavegroup(struct in_multi *);
void igmp_fasttimo(void);
void igmp_slowtimo(void);
void igmp_purgeif(struct ifnet *);
#endif /* _KERNEL */
#endif /* !_NETINET_IGMP_VAR_H_ */