112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 1988 Stephen Deering.
|
|
* 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. 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
|
|
* $Id$
|
|
*/
|
|
|
|
#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.
|
|
*
|
|
* MULTICAST Revision: 3.5.1.3
|
|
*/
|
|
|
|
struct igmpstat {
|
|
u_int igps_rcv_total; /* total IGMP messages received */
|
|
u_int igps_rcv_tooshort; /* received with too few bytes */
|
|
u_int igps_rcv_badsum; /* received with bad checksum */
|
|
u_int igps_rcv_queries; /* received membership queries */
|
|
u_int igps_rcv_badqueries; /* received invalid queries */
|
|
u_int igps_rcv_reports; /* received membership reports */
|
|
u_int igps_rcv_badreports; /* received invalid reports */
|
|
u_int igps_rcv_ourreports; /* received reports for our groups */
|
|
u_int igps_snd_reports; /* sent membership reports */
|
|
};
|
|
|
|
#ifdef KERNEL
|
|
extern struct igmpstat igmpstat;
|
|
|
|
#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
|
|
|
|
/*
|
|
* States for IGMPv2's leave processing
|
|
*/
|
|
#define IGMP_OTHERMEMBER 0
|
|
#define IGMP_IREPORTEDLAST 1
|
|
|
|
/*
|
|
* We must remember what version the subnet's querier is.
|
|
* We conveniently use the IGMP message type for the proper
|
|
* membership report to keep this state.
|
|
*/
|
|
#define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT
|
|
#define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT
|
|
|
|
/*
|
|
* Revert to new router if we haven't heard from an old router in
|
|
* this amount of time.
|
|
*/
|
|
#define IGMP_AGE_THRESHOLD 540
|
|
|
|
void igmp_init __P((void));
|
|
void igmp_input __P((struct mbuf *, int));
|
|
void igmp_joingroup __P((struct in_multi *));
|
|
void igmp_leavegroup __P((struct in_multi *));
|
|
void igmp_fasttimo __P((void));
|
|
void igmp_slowtimo __P((void));
|
|
#endif
|
|
|
|
/*
|
|
* Names for IGMP sysctl objects
|
|
*/
|
|
#define IGMPCTL_STATS 1 /* statistics (read-only) */
|
|
#define IGMPCTL_MAXID 2
|
|
|
|
#define IGMPCTL_NAMES { \
|
|
{ 0, 0 }, \
|
|
{ "stats", CTLTYPE_STRUCT }, \
|
|
}
|
|
|
|
#endif
|
|
|
|
|