1 /* $OpenBSD: igmp_var.h,v 1.4 2001/06/09 07:03:40 angelos Exp $ */ 2 /* $NetBSD: igmp_var.h,v 1.9 1996/02/13 23:41:31 christos Exp $ */ 3 4 /* 5 * Copyright (c) 1988 Stephen Deering. 6 * Copyright (c) 1992, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * Stephen Deering of Stanford University. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)igmp_var.h 8.1 (Berkeley) 7/19/93 41 */ 42 43 #ifndef _NETINET_IGMP_VAR_H_ 44 #define _NETINET_IGMP_VAR_H_ 45 46 /* 47 * Internet Group Management Protocol (IGMP), 48 * implementation-specific definitions. 49 * 50 * Written by Steve Deering, Stanford, May 1988. 51 * Modified by Rosen Sharma, Stanford, Aug 1994. 52 * Modified by Bill Fenner, Xerox PARC, Feb 1995. 53 * 54 * MULTICAST 1.3 55 */ 56 57 struct igmpstat { 58 u_long igps_rcv_total; /* total IGMP messages received */ 59 u_long igps_rcv_tooshort; /* received with too few bytes */ 60 u_long igps_rcv_badsum; /* received with bad checksum */ 61 u_long igps_rcv_queries; /* received membership queries */ 62 u_long igps_rcv_badqueries; /* received invalid queries */ 63 u_long igps_rcv_reports; /* received membership reports */ 64 u_long igps_rcv_badreports; /* received invalid reports */ 65 u_long igps_rcv_ourreports; /* received reports for our groups */ 66 u_long igps_snd_reports; /* sent membership reports */ 67 }; 68 69 #ifdef _KERNEL 70 struct igmpstat igmpstat; 71 72 /* 73 * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_ 74 * DELAY * countdown frequency). We assume that the routine random() 75 * is defined somewhere (and that it returns a positive number). 76 */ 77 #define IGMP_RANDOM_DELAY(X) (arc4random() % (X) + 1) 78 79 void igmp_init __P((void)); 80 void igmp_input __P((struct mbuf *, ...)); 81 void igmp_joingroup __P((struct in_multi *)); 82 void igmp_leavegroup __P((struct in_multi *)); 83 void igmp_fasttimo __P((void)); 84 void igmp_slowtimo __P((void)); 85 #endif /* _KERNEL */ 86 #endif /* _NETINET_IGMP_VAR_H_ */ 87