igmp_var.h
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上传日期:2008-05-12
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VxWorks
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C/C++
- /* igmp_var.h - internet group management protocol variable header file */
- /* Copyright 1984 - 2001 Wind River Systems, Inc. */
- /*
- * Copyright (c) 1988 Stephen Deering.
- * 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. 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.
- *
- * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
- * $FreeBSD: src/sys/netinet/igmp_var.h,v 1.15 1999/08/28 00:49:15 peter Exp $
- */
- /*
- * Internet Group Management Protocol (IGMP),
- * implementation-specific definitions.
- *
- * Written by Steve Deering, Stanford, May 1988.
- *
- * MULTICAST Revision: 3.5.1.3
- */
- /*
- modification history
- --------------------
- 01c,10oct01,rae merge from truestack, upgrade to V2, VIRTUAL_STACK
- 01b,31jan97,vin changed declaration according to prototype decl in protosw.h
- 01a,03mar96,vin created from BSD4.4lite2.
- */
- #ifndef __INCigmp_varh
- #define __INCigmp_varh
- #ifdef __cplusplus
- extern "C" {
- #endif
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 1 /* tell gcc960 not to optimize alignments */
- #endif /* CPU_FAMILY==I960 */
- #ifdef VIRTUAL_STACK
- struct vs_igmpstat {
- u_int igps_rcv_total; /* total IGMP messages received */
- u_int igps_rcv_tooshort; /* received with too few bytes */
- u_int igps_rcv_badsum; /* received with bad checksum */
- u_int igps_rcv_queries; /* received membership queries */
- u_int igps_rcv_badqueries; /* received invalid queries */
- u_int igps_rcv_reports; /* received membership reports */
- u_int igps_rcv_badreports; /* received invalid reports */
- u_int igps_rcv_ourreports; /* received reports for our groups */
- u_int igps_snd_reports; /* sent membership reports */
- };
- #else /* VIRTUAL_STACK */
- struct igmpstat {
- u_int igps_rcv_total; /* total IGMP messages received */
- u_int igps_rcv_tooshort; /* received with too few bytes */
- u_int igps_rcv_badsum; /* received with bad checksum */
- u_int igps_rcv_queries; /* received membership queries */
- u_int igps_rcv_badqueries; /* received invalid queries */
- u_int igps_rcv_reports; /* received membership reports */
- u_int igps_rcv_badreports; /* received invalid reports */
- u_int igps_rcv_ourreports; /* received reports for our groups */
- u_int igps_snd_reports; /* sent membership reports */
- };
- #endif /* VIRTUAL_STACK */
- #define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
- /*
- * States for IGMPv2's leave processing
- */
- #define IGMP_OTHERMEMBER 0
- #define IGMP_IREPORTEDLAST 1
- /*
- * We must remember what version the subnet's querier is.
- * We conveniently use the IGMP message type for the proper
- * membership report to keep this state.
- */
- #define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT
- #define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT
- /*
- * Revert to new router if we haven't heard from an old router in
- * this amount of time.
- */
- #define IGMP_AGE_THRESHOLD 540
- extern void igmp_init (void);
- extern void igmp_input (struct mbuf *, int);
- extern void igmp_fasttimo (void);
- extern void igmp_slowtimo (void);
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCigmp_varh */