27e1742142
manner as the ifaddr hash table. By doing this, the mkludge code can go away. At the same time, keep track of what pcbs are using what ifaddr and when an address is deleted from an interface, notify/abort all sockets that have that address as a source. Switch IGMP and multicasts to use pools for allocation. Fix a number of potential problems in the igmp code where allocation failures could cause a trap/panic.
93 lines
3.6 KiB
C
93 lines
3.6 KiB
C
/* $NetBSD: igmp_var.h,v 1.15 2003/06/15 02:49:32 matt Exp $ */
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/*
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* Copyright (c) 1988 Stephen Deering.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Stephen Deering of Stanford University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
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*/
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#ifndef _NETINET_IGMP_VAR_H_
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#define _NETINET_IGMP_VAR_H_
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/*
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* Internet Group Management Protocol (IGMP),
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* implementation-specific definitions.
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*
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* Written by Steve Deering, Stanford, May 1988.
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* Modified by Rosen Sharma, Stanford, Aug 1994.
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* Modified by Bill Fenner, Xerox PARC, Feb 1995.
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*
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* MULTICAST 1.3
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*/
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struct igmpstat {
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u_quad_t igps_rcv_total; /* total IGMP messages received */
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u_quad_t igps_rcv_tooshort; /* received with too few bytes */
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u_quad_t igps_rcv_badsum; /* received with bad checksum */
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u_quad_t igps_rcv_queries; /* received membership queries */
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u_quad_t igps_rcv_badqueries; /* received invalid queries */
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u_quad_t igps_rcv_reports; /* received membership reports */
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u_quad_t igps_rcv_badreports; /* received invalid reports */
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u_quad_t igps_rcv_ourreports; /* received reports for our groups */
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u_quad_t igps_snd_reports; /* sent membership reports */
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};
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#ifdef _KERNEL
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extern struct igmpstat igmpstat;
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/*
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* Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
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* DELAY * countdown frequency). We assume that the routine random()
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* is defined somewhere (and that it returns a positive number).
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*/
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#define IGMP_RANDOM_DELAY(X) (arc4random() % (X) + 1)
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#ifdef __NO_STRICT_ALIGNMENT
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#define IGMP_HDR_ALIGNED_P(ig) 1
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#else
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#define IGMP_HDR_ALIGNED_P(ig) ((((vaddr_t) (ig)) & 3) == 0)
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#endif
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void igmp_init __P((void));
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void igmp_input __P((struct mbuf *, ...));
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int igmp_joingroup __P((struct in_multi *));
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void igmp_leavegroup __P((struct in_multi *));
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void igmp_fasttimo __P((void));
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void igmp_slowtimo __P((void));
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#endif
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#endif /* _NETINET_IGMP_VAR_H_ */
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