ip_icmp.h
资源名称:ixp425BSP.rar [点击查看]
上传用户:luoyougen
上传日期:2008-05-12
资源大小:23136k
文件大小:7k
源码类别:
VxWorks
开发平台:
C/C++
- /* ip_icmp.h - interface control message protocol header file */
- /* Copyright 1984-1996 Wind River Systems, Inc. */
- /*
- * Copyright (c) 1982, 1986, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * 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.
- *
- * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
- */
- /*
- modification history
- --------------------
- 02i,24feb97,bjl moved struct ih_idseq, struct id_ts, and struct id_ip
- outside of union declarations to make structs globally
- visible in c++.
- 01c,31jan97,vin changed declaration according to prototype decl in protosw.h
- 01b,07jan96,vin removed declaration for icmp_error, for scalability.
- 01a,03mar96,vin created from BSD4.4lite2.
- */
- #ifndef __INCip_icmph
- #define __INCip_icmph
- #ifdef __cplusplus
- extern "C" {
- #endif
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 1 /* tell gcc960 not to optimize alignments */
- #endif /* CPU_FAMILY==I960 */
- /*
- * Interface Control Message Protocol Definitions.
- * Per RFC 792, September 1981.
- */
- struct ih_idseq {
- n_short icd_id;
- n_short icd_seq;
- };
- struct id_ts {
- n_time its_otime;
- n_time its_rtime;
- n_time its_ttime;
- };
- struct id_ip {
- struct ip idi_ip;
- /* options and then 64 bits of data */
- };
- /*
- * Structure of an icmp header.
- */
- struct icmp {
- u_char icmp_type; /* type of message, see below */
- u_char icmp_code; /* type sub code */
- u_short icmp_cksum; /* ones complement cksum of struct */
- union {
- u_char ih_pptr; /* ICMP_PARAMPROB */
- struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
- struct ih_idseq ih_idseq;
- int ih_void;
- /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
- struct ih_pmtu {
- n_short ipm_void;
- n_short ipm_nextmtu;
- } ih_pmtu;
- } icmp_hun;
- #define icmp_pptr icmp_hun.ih_pptr
- #define icmp_gwaddr icmp_hun.ih_gwaddr
- #define icmp_id icmp_hun.ih_idseq.icd_id
- #define icmp_seq icmp_hun.ih_idseq.icd_seq
- #define icmp_void icmp_hun.ih_void
- #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
- #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
- union {
- struct id_ts id_ts;
- struct id_ip id_ip;
- u_long id_mask;
- char id_data[1];
- } icmp_dun;
- #define icmp_otime icmp_dun.id_ts.its_otime
- #define icmp_rtime icmp_dun.id_ts.its_rtime
- #define icmp_ttime icmp_dun.id_ts.its_ttime
- #define icmp_ip icmp_dun.id_ip.idi_ip
- #define icmp_mask icmp_dun.id_mask
- #define icmp_data icmp_dun.id_data
- };
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 0 /* turn off alignment requirement */
- #endif /* CPU_FAMILY==I960 */
- /*
- * Lower bounds on packet lengths for various types.
- * For the error advice packets must first insure that the
- * packet is large enought to contain the returned ip header.
- * Only then can we do the check to see if 64 bits of packet
- * data have been returned, since we need to check the returned
- * ip header length.
- */
- #define ICMP_MINLEN 8 /* abs minimum */
- #define ICMP_TSLEN (8 + 3 * sizeof (n_time)) /* timestamp */
- #define ICMP_MASKLEN 12 /* address mask */
- #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
- #define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
- /* N.B.: must separately check that ip_hl >= 5 */
- /*
- * Definition of type and code field values.
- */
- #define ICMP_ECHOREPLY 0 /* echo reply */
- #define ICMP_UNREACH 3 /* dest unreachable, codes: */
- #define ICMP_UNREACH_NET 0 /* bad net */
- #define ICMP_UNREACH_HOST 1 /* bad host */
- #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
- #define ICMP_UNREACH_PORT 3 /* bad port */
- #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
- #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
- #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
- #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
- #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
- #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
- #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
- #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
- #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
- #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
- #define ICMP_REDIRECT 5 /* shorter route, codes: */
- #define ICMP_REDIRECT_NET 0 /* for network */
- #define ICMP_REDIRECT_HOST 1 /* for host */
- #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
- #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
- #define ICMP_ECHO 8 /* echo service */
- #define ICMP_ROUTERADVERT 9 /* router advertisement */
- #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
- #define ICMP_TIMXCEED 11 /* time exceeded, code: */
- #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
- #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
- #define ICMP_PARAMPROB 12 /* ip header bad */
- #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
- #define ICMP_TSTAMP 13 /* timestamp request */
- #define ICMP_TSTAMPREPLY 14 /* timestamp reply */
- #define ICMP_IREQ 15 /* information request */
- #define ICMP_IREQREPLY 16 /* information reply */
- #define ICMP_MASKREQ 17 /* address mask request */
- #define ICMP_MASKREPLY 18 /* address mask reply */
- #define ICMP_MAXTYPE 18
- #define ICMP_INFOTYPE(type)
- ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO ||
- (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT ||
- (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY ||
- (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY ||
- (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
- void icmp_input (struct mbuf *, int);
- void icmp_init (void);
- int icmp_sysctl (int *, u_int, void *, size_t *, void *, size_t);
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCip_icmph */