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Annotation of sys/netinet/igmp_var.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: igmp_var.h,v 1.7 2003/06/02 23:28:13 millert 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. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  *
                     36:  *     @(#)igmp_var.h  8.1 (Berkeley) 7/19/93
                     37:  */
                     38:
                     39: #ifndef _NETINET_IGMP_VAR_H_
                     40: #define _NETINET_IGMP_VAR_H_
                     41:
                     42: /*
                     43:  * Internet Group Management Protocol (IGMP),
                     44:  * implementation-specific definitions.
                     45:  *
                     46:  * Written by Steve Deering, Stanford, May 1988.
                     47:  * Modified by Rosen Sharma, Stanford, Aug 1994.
                     48:  * Modified by Bill Fenner, Xerox PARC, Feb 1995.
                     49:  *
                     50:  * MULTICAST 1.3
                     51:  */
                     52:
                     53: struct igmpstat {
                     54:        u_long  igps_rcv_total;         /* total IGMP messages received */
                     55:        u_long  igps_rcv_tooshort;      /* received with too few bytes */
                     56:        u_long  igps_rcv_badsum;        /* received with bad checksum */
                     57:        u_long  igps_rcv_queries;       /* received membership queries */
                     58:        u_long  igps_rcv_badqueries;    /* received invalid queries */
                     59:        u_long  igps_rcv_reports;       /* received membership reports */
                     60:        u_long  igps_rcv_badreports;    /* received invalid reports */
                     61:        u_long  igps_rcv_ourreports;    /* received reports for our groups */
                     62:        u_long  igps_snd_reports;       /* sent membership reports */
                     63: };
                     64:
                     65: #ifdef _KERNEL
                     66: extern struct igmpstat igmpstat;
                     67:
                     68: /*
                     69:  * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
                     70:  * DELAY * countdown frequency).  We assume that the routine random()
                     71:  * is defined somewhere (and that it returns a positive number).
                     72:  */
                     73: #define        IGMP_RANDOM_DELAY(X)    (arc4random() % (X) + 1)
                     74:
                     75: void   igmp_init(void);
                     76: void   igmp_input(struct mbuf *, ...);
                     77: void   igmp_joingroup(struct in_multi *);
                     78: void   igmp_leavegroup(struct in_multi *);
                     79: void   igmp_fasttimo(void);
                     80: void   igmp_slowtimo(void);
                     81: #endif /* _KERNEL */
                     82: #endif /* _NETINET_IGMP_VAR_H_ */