1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 4*7c478bd9Sstevel@tonic-gate */ 5*7c478bd9Sstevel@tonic-gate 6*7c478bd9Sstevel@tonic-gate /* 7*7c478bd9Sstevel@tonic-gate * Copyright (c) 1982, 1986, 1993 8*7c478bd9Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 9*7c478bd9Sstevel@tonic-gate * 10*7c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 11*7c478bd9Sstevel@tonic-gate * modification, are permitted provided that the following conditions 12*7c478bd9Sstevel@tonic-gate * are met: 13*7c478bd9Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 14*7c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 15*7c478bd9Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 16*7c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 17*7c478bd9Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 18*7c478bd9Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 19*7c478bd9Sstevel@tonic-gate * must display the following acknowledgement: 20*7c478bd9Sstevel@tonic-gate * This product includes software developed by the University of 21*7c478bd9Sstevel@tonic-gate * California, Berkeley and its contributors. 22*7c478bd9Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 23*7c478bd9Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 24*7c478bd9Sstevel@tonic-gate * without specific prior written permission. 25*7c478bd9Sstevel@tonic-gate * 26*7c478bd9Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27*7c478bd9Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28*7c478bd9Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29*7c478bd9Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30*7c478bd9Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31*7c478bd9Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32*7c478bd9Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33*7c478bd9Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34*7c478bd9Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35*7c478bd9Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36*7c478bd9Sstevel@tonic-gate * SUCH DAMAGE. 37*7c478bd9Sstevel@tonic-gate */ 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate /* 40*7c478bd9Sstevel@tonic-gate * Interface Control Message Protocol Definitions. 41*7c478bd9Sstevel@tonic-gate * Per RFC 792, September 1981. 42*7c478bd9Sstevel@tonic-gate */ 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate #ifndef _NETINET_IP_ICMP_H 45*7c478bd9Sstevel@tonic-gate #define _NETINET_IP_ICMP_H 46*7c478bd9Sstevel@tonic-gate 47*7c478bd9Sstevel@tonic-gate /* ip_icmp.h 1.9 88/08/19 SMI; from UCB 7.3 12/7/87 */ 48*7c478bd9Sstevel@tonic-gate 49*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 50*7c478bd9Sstevel@tonic-gate extern "C" { 51*7c478bd9Sstevel@tonic-gate #endif 52*7c478bd9Sstevel@tonic-gate 53*7c478bd9Sstevel@tonic-gate /* 54*7c478bd9Sstevel@tonic-gate * Structure of an icmp header. 55*7c478bd9Sstevel@tonic-gate */ 56*7c478bd9Sstevel@tonic-gate struct icmp { 57*7c478bd9Sstevel@tonic-gate uchar_t icmp_type; /* type of message, see below */ 58*7c478bd9Sstevel@tonic-gate uchar_t icmp_code; /* type sub code */ 59*7c478bd9Sstevel@tonic-gate uint16_t icmp_cksum; /* ones complement cksum of struct */ 60*7c478bd9Sstevel@tonic-gate union { 61*7c478bd9Sstevel@tonic-gate uchar_t ih_pptr; /* ICMP_PARAMPROB */ 62*7c478bd9Sstevel@tonic-gate struct in_addr ih_gwaddr; /* ICMP_REDIRECT */ 63*7c478bd9Sstevel@tonic-gate struct ih_idseq { 64*7c478bd9Sstevel@tonic-gate uint16_t icd_id; 65*7c478bd9Sstevel@tonic-gate uint16_t icd_seq; 66*7c478bd9Sstevel@tonic-gate } ih_idseq; 67*7c478bd9Sstevel@tonic-gate int ih_void; 68*7c478bd9Sstevel@tonic-gate 69*7c478bd9Sstevel@tonic-gate /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */ 70*7c478bd9Sstevel@tonic-gate struct ih_pmtu { 71*7c478bd9Sstevel@tonic-gate uint16_t ipm_void; 72*7c478bd9Sstevel@tonic-gate uint16_t ipm_nextmtu; 73*7c478bd9Sstevel@tonic-gate } ih_pmtu; 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate struct ih_rtradv { 76*7c478bd9Sstevel@tonic-gate uchar_t irt_num_addrs; 77*7c478bd9Sstevel@tonic-gate uchar_t irt_wpa; 78*7c478bd9Sstevel@tonic-gate uint16_t irt_lifetime; 79*7c478bd9Sstevel@tonic-gate } ih_rtradv; 80*7c478bd9Sstevel@tonic-gate } icmp_hun; 81*7c478bd9Sstevel@tonic-gate #define icmp_pptr icmp_hun.ih_pptr 82*7c478bd9Sstevel@tonic-gate #define icmp_gwaddr icmp_hun.ih_gwaddr 83*7c478bd9Sstevel@tonic-gate #define icmp_id icmp_hun.ih_idseq.icd_id 84*7c478bd9Sstevel@tonic-gate #define icmp_seq icmp_hun.ih_idseq.icd_seq 85*7c478bd9Sstevel@tonic-gate #define icmp_void icmp_hun.ih_void 86*7c478bd9Sstevel@tonic-gate #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void 87*7c478bd9Sstevel@tonic-gate #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu 88*7c478bd9Sstevel@tonic-gate union { 89*7c478bd9Sstevel@tonic-gate struct id_ts { 90*7c478bd9Sstevel@tonic-gate n_time its_otime; 91*7c478bd9Sstevel@tonic-gate n_time its_rtime; 92*7c478bd9Sstevel@tonic-gate n_time its_ttime; 93*7c478bd9Sstevel@tonic-gate } id_ts; 94*7c478bd9Sstevel@tonic-gate struct id_ip { 95*7c478bd9Sstevel@tonic-gate struct ip idi_ip; 96*7c478bd9Sstevel@tonic-gate /* options and then 64 bits of data */ 97*7c478bd9Sstevel@tonic-gate } id_ip; 98*7c478bd9Sstevel@tonic-gate uint32_t id_mask; 99*7c478bd9Sstevel@tonic-gate char id_data[1]; 100*7c478bd9Sstevel@tonic-gate } icmp_dun; 101*7c478bd9Sstevel@tonic-gate #define icmp_otime icmp_dun.id_ts.its_otime 102*7c478bd9Sstevel@tonic-gate #define icmp_rtime icmp_dun.id_ts.its_rtime 103*7c478bd9Sstevel@tonic-gate #define icmp_ttime icmp_dun.id_ts.its_ttime 104*7c478bd9Sstevel@tonic-gate #define icmp_ip icmp_dun.id_ip.idi_ip 105*7c478bd9Sstevel@tonic-gate #define icmp_mask icmp_dun.id_mask 106*7c478bd9Sstevel@tonic-gate #define icmp_data icmp_dun.id_data 107*7c478bd9Sstevel@tonic-gate }; 108*7c478bd9Sstevel@tonic-gate 109*7c478bd9Sstevel@tonic-gate /* 110*7c478bd9Sstevel@tonic-gate * Lower bounds on packet lengths for various types. 111*7c478bd9Sstevel@tonic-gate * For the error advice packets must first insure that the 112*7c478bd9Sstevel@tonic-gate * packet is large enough to contain the returned ip header. 113*7c478bd9Sstevel@tonic-gate * Only then can we do the check to see if 64 bits of packet 114*7c478bd9Sstevel@tonic-gate * data have been returned, since we need to check the returned 115*7c478bd9Sstevel@tonic-gate * ip header length. 116*7c478bd9Sstevel@tonic-gate */ 117*7c478bd9Sstevel@tonic-gate #define ICMP_MINLEN 8 /* abs minimum */ 118*7c478bd9Sstevel@tonic-gate #define ICMP_TSLEN (8 + 3 * sizeof (n_time)) /* timestamp */ 119*7c478bd9Sstevel@tonic-gate #define ICMP_MASKLEN 12 /* address mask */ 120*7c478bd9Sstevel@tonic-gate #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */ 121*7c478bd9Sstevel@tonic-gate #define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8) 122*7c478bd9Sstevel@tonic-gate /* N.B.: must separately check that ip_hl >= 5 */ 123*7c478bd9Sstevel@tonic-gate 124*7c478bd9Sstevel@tonic-gate /* 125*7c478bd9Sstevel@tonic-gate * Definition of type and code field values. 126*7c478bd9Sstevel@tonic-gate */ 127*7c478bd9Sstevel@tonic-gate #define ICMP_ECHOREPLY 0 /* echo reply */ 128*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH 3 /* dest unreachable, codes: */ 129*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_NET 0 /* bad net */ 130*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_HOST 1 /* bad host */ 131*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */ 132*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_PORT 3 /* bad port */ 133*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */ 134*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */ 135*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */ 136*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */ 137*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */ 138*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */ 139*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */ 140*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */ 141*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */ 142*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_FILTER_PROHIB 13 /* prohibited access */ 143*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_HOST_PRECEDENCE 14 /* pred violationn */ 144*7c478bd9Sstevel@tonic-gate #define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* precedence cutoff */ 145*7c478bd9Sstevel@tonic-gate #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */ 146*7c478bd9Sstevel@tonic-gate #define ICMP_REDIRECT 5 /* shorter route, codes: */ 147*7c478bd9Sstevel@tonic-gate #define ICMP_REDIRECT_NET 0 /* for network */ 148*7c478bd9Sstevel@tonic-gate #define ICMP_REDIRECT_HOST 1 /* for host */ 149*7c478bd9Sstevel@tonic-gate #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */ 150*7c478bd9Sstevel@tonic-gate #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */ 151*7c478bd9Sstevel@tonic-gate #define ICMP_ECHO 8 /* echo service */ 152*7c478bd9Sstevel@tonic-gate #define ICMP_ROUTERADVERT 9 /* router advertisement */ 153*7c478bd9Sstevel@tonic-gate #define ICMP_ROUTERADVERT_COMMON 0 /* common traffic */ 154*7c478bd9Sstevel@tonic-gate #define ICMP_ROUTERADVERT_NOCOMMON 16 /* no common traffic */ 155*7c478bd9Sstevel@tonic-gate #define ICMP_ROUTERSOLICIT 10 /* router solicitation */ 156*7c478bd9Sstevel@tonic-gate #define ICMP_TIMXCEED 11 /* time exceeded, code: */ 157*7c478bd9Sstevel@tonic-gate #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */ 158*7c478bd9Sstevel@tonic-gate #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */ 159*7c478bd9Sstevel@tonic-gate #define ICMP_PARAMPROB 12 /* ip header bad */ 160*7c478bd9Sstevel@tonic-gate #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */ 161*7c478bd9Sstevel@tonic-gate #define ICMP_PARAMPROB_BADLENGTH 2 /* Bad Length */ 162*7c478bd9Sstevel@tonic-gate #define ICMP_TSTAMP 13 /* timestamp request */ 163*7c478bd9Sstevel@tonic-gate #define ICMP_TSTAMPREPLY 14 /* timestamp reply */ 164*7c478bd9Sstevel@tonic-gate #define ICMP_IREQ 15 /* information request */ 165*7c478bd9Sstevel@tonic-gate #define ICMP_IREQREPLY 16 /* information reply */ 166*7c478bd9Sstevel@tonic-gate #define ICMP_MASKREQ 17 /* address mask request */ 167*7c478bd9Sstevel@tonic-gate #define ICMP_MASKREPLY 18 /* address mask reply */ 168*7c478bd9Sstevel@tonic-gate 169*7c478bd9Sstevel@tonic-gate #define ICMP_MAXTYPE 18 170*7c478bd9Sstevel@tonic-gate 171*7c478bd9Sstevel@tonic-gate #define ICMP_INFOTYPE(type) \ 172*7c478bd9Sstevel@tonic-gate ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \ 173*7c478bd9Sstevel@tonic-gate (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \ 174*7c478bd9Sstevel@tonic-gate (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \ 175*7c478bd9Sstevel@tonic-gate (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \ 176*7c478bd9Sstevel@tonic-gate (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY) 177*7c478bd9Sstevel@tonic-gate 178*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 179*7c478bd9Sstevel@tonic-gate } 180*7c478bd9Sstevel@tonic-gate #endif 181*7c478bd9Sstevel@tonic-gate 182*7c478bd9Sstevel@tonic-gate #endif /* _NETINET_IP_ICMP_H */ 183