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Annotation of sys/netinet/igmp_var.h, Revision 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_ */