| /* |
| * 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. |
| * |
| * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93 |
| * $FreeBSD: src/sys/netinet/igmp_var.h,v 1.19 2002/03/19 21:25:46 alfred Exp $ |
| */ |
| |
| #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 |
| #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(void); |
| void igmp_input(struct mbuf *, int); |
| void igmp_joingroup(struct in_multi *); |
| void igmp_leavegroup(struct in_multi *); |
| void igmp_fasttimo(void); |
| void igmp_slowtimo(void); |
| |
| SYSCTL_DECL(_net_inet_igmp); |
| |
| #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 |