/* IBM_PROLOG_BEGIN_TAG */ /* This is an automatically generated prolog. */ /* */ /* bos720 src/bos/kernext/inet/ip_icmp.h 1.13 */ /* */ /* Licensed Materials - Property of IBM */ /* */ /* COPYRIGHT International Business Machines Corp. 1988,1993 */ /* All Rights Reserved */ /* */ /* US Government Users Restricted Rights - Use, duplication or */ /* disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */ /* */ /* IBM_PROLOG_END_TAG */ /* @(#)52 1.13 src/bos/kernext/inet/ip_icmp.h, sockinc, bos720 9/26/08 08:45:48 */ /* * COMPONENT_NAME: SYSXINET * * FUNCTIONS: ICMP_ADVLEN * ICMP_INFOTYPE * * * ORIGINS: 26,27,85,127 * * * (C) COPYRIGHT International Business Machines Corp. 1988,1996 * All Rights Reserved * Licensed Materials - Property of IBM * US Government Users Restricted Rights - Use, duplication or * disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */ /* * (c) Copyright 1990, 1991, 1992, 1993 OPEN SOFTWARE FOUNDATION, INC. * ALL RIGHTS RESERVED */ /* * OSF/1 1.2 */ /* * Copyright (c) 1982, 1986 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted provided * that: (1) source distributions retain this entire copyright notice and * comment, and (2) distributions including binaries display the following * acknowledgement: ``This product includes software developed by the * University of California, Berkeley and its contributors'' in the * documentation or other materials provided with the distribution and in * all advertising materials mentioning features or use of this software. * 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * Base: ip_icmp.h 7.4 (Berkeley) 6/29/88 * Merged: ip_icmp.h 7.5 (Berkeley) 6/28/90 */ /* * Interface Control Message Protocol Definitions. * Per RFC 792, September 1981. */ #ifndef _NETINET_IP_ICMP_H_ #define _NETINET_IP_ICMP_H_ #include /* * 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 { n_short icd_id; n_short icd_seq; } 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 { n_time its_otime; n_time its_rtime; n_time its_ttime; } id_ts; struct ip_extid { n_short magic_number; n_short subid; n_long pktid; } ip_extid; struct id_ip { struct ip idi_ip; /* options and then 64 bits of data */ } id_ip; u_int 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 #define icmp_magic_number icmp_dun.ip_extid.magic_number #define icmp_subid icmp_dun.ip_extid.subid #define icmp_pktid icmp_dun.ip_extid.pktid }; #define ICMP_MAGIC_NUMBER 0x7676 #define ICMP_EXTID (1) #define ICMP_ECH_PING (1) /* * 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_MAXLEN 65515 /* abs maximum */ #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_vhl & 0x0f) << 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_ADMIN_PROHIBITED 9 /* MLS: RFC1108 out-of-range response */ #define ICMP_UNREACH_HOST_ADMIN_PROHIBITED 10 /* MLS: RFC1108 out-of-range response */ #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_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_PTR 0 /* MLS: ptr set for paramprob */ #define ICMP_PARAMPROB_MISSING 1 /* MLS: missin param */ #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_STAT_MAXTYPE (ICMP_MAXTYPE + 1) /* 671038 : To store the icmp statistics when the icmp type of the packet is > 18 */ #define ICMP_INFOTYPE(type) \ ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \ (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \ (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \ (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY) #endif