LCOM1920-T02G10

/*        $NetBSD: igmp_var.h,v 1.24 2014/05/29 23:02:48 rmind Exp $        */

/*

 * 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. 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

 */

/*

 * Copyright (c) 1988 Stephen Deering.

 *

 * 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

 */

#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.

 * Modified by Rosen Sharma, Stanford, Aug 1994.

 * Modified by Bill Fenner, Xerox PARC, Feb 1995.

 *

 * MULTICAST 1.3

 */

#define        IGMP_STAT_RCV_TOTAL        1        /* total IGMP messages received */

#define        IGMP_STAT_RCV_TOOSHORT        2        /* received with too few bytes */

#define        IGMP_STAT_RCV_BADSUM        3        /* received with bad checksum */

#define        IGMP_STAT_RCV_QUERIES        4        /* received membership queries */

#define        IGMP_STAT_RCV_BADQUERIES 5        /* received invalid queries */

#define        IGMP_STAT_RCV_REPORTS        6        /* received membership reports */

#define        IGMP_STAT_RCV_BADREPORTS 7        /* received invalid reports */

#define        IGMP_STAT_RCV_OURREPORTS 8        /* received reports for our groups */

#define        IGMP_STAT_SND_REPORTS        9        /* sent membership reports */

#define        IGMP_NSTATS                10

#ifdef _KERNEL

/*

 * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_

 * DELAY * countdown frequency).  We assume that the routine random()

 * is defined somewhere (and that it returns a positive number).

 */

#define        IGMP_RANDOM_DELAY(X)        (cprng_fast32() % (X) + 1)

#ifdef __NO_STRICT_ALIGNMENT

#define        IGMP_HDR_ALIGNED_P(ig)        1

#else

#define        IGMP_HDR_ALIGNED_P(ig)        ((((vaddr_t) (ig)) & 3) == 0)

#endif

void        igmp_init(void);

void        igmp_input(struct mbuf *, ...);

int        igmp_joingroup(struct in_multi *);

void        igmp_leavegroup(struct in_multi *);

void        igmp_fasttimo(void);

void        igmp_slowtimo(void);

void        igmp_purgeif(struct ifnet *);

#endif /* _KERNEL */

#endif /* !_NETINET_IGMP_VAR_H_ */