Annotation of embedaddon/dhcp/includes/netinet/ip_icmp.h, revision 1.1
1.1 ! misho 1: /* $NetBSD: ip_icmp.h,v 1.11 1996/08/03 15:48:18 neil Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1982, 1986, 1993
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: *
! 35: * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
! 36: */
! 37:
! 38:
! 39: /*
! 40: * Interface Control Message Protocol Definitions.
! 41: * Per RFC 792, September 1981.
! 42: */
! 43:
! 44: /*
! 45: * Internal of an ICMP Router Advertisement
! 46: */
! 47: struct icmp_ra_addr {
! 48: u_int32_t ira_addr;
! 49: u_int32_t ira_preference;
! 50: };
! 51:
! 52: /*
! 53: * Structure of an icmp header.
! 54: */
! 55: struct icmp {
! 56: u_int8_t icmp_type; /* type of message, see below */
! 57: u_int8_t icmp_code; /* type sub code */
! 58: u_int16_t icmp_cksum; /* ones complement cksum of struct */
! 59: union {
! 60: u_int8_t ih_pptr; /* ICMP_PARAMPROB */
! 61: struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
! 62: struct ih_idseq {
! 63: int16_t icd_id;
! 64: int16_t icd_seq;
! 65: } ih_idseq;
! 66: int32_t ih_void;
! 67:
! 68: /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
! 69: struct ih_pmtu {
! 70: int16_t ipm_void;
! 71: int16_t ipm_nextmtu;
! 72: } ih_pmtu;
! 73: struct ih_rtradv {
! 74: u_int8_t irt_num_addrs;
! 75: u_int8_t irt_wpa;
! 76: u_int16_t irt_lifetime;
! 77: } ih_rtradv;
! 78: } icmp_hun;
! 79: #define icmp_pptr icmp_hun.ih_pptr
! 80: #define icmp_gwaddr icmp_hun.ih_gwaddr
! 81: #define icmp_id icmp_hun.ih_idseq.icd_id
! 82: #define icmp_seq icmp_hun.ih_idseq.icd_seq
! 83: #define icmp_void icmp_hun.ih_void
! 84: #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
! 85: #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
! 86: #define icmp_num_addrs icmp_hun.ih_rtradv.irt_num_addrs
! 87: #define icmp_wpa icmp_hun.ih_rtradv.irt_wpa
! 88: #define icmp_lifetime icmp_hun.ih_rtradv.irt_lifetime
! 89: union {
! 90: struct id_ts {
! 91: u_int32_t its_otime;
! 92: u_int32_t its_rtime;
! 93: u_int32_t its_ttime;
! 94: } id_ts;
! 95: struct id_ip {
! 96: struct ip idi_ip;
! 97: /* options and then 64 bits of data */
! 98: } id_ip;
! 99: struct icmp_ra_addr id_radv;
! 100: u_int32_t id_mask;
! 101: int8_t id_data[1];
! 102: } icmp_dun;
! 103: #define icmp_otime icmp_dun.id_ts.its_otime
! 104: #define icmp_rtime icmp_dun.id_ts.its_rtime
! 105: #define icmp_ttime icmp_dun.id_ts.its_ttime
! 106: #define icmp_ip icmp_dun.id_ip.idi_ip
! 107: #define icmp_radv icmp_dun.id_mask
! 108: #define icmp_mask icmp_dun.id_mask
! 109: #define icmp_data icmp_dun.id_data
! 110: };
! 111:
! 112: /*
! 113: * Lower bounds on packet lengths for various types.
! 114: * For the error advice packets must first insure that the
! 115: * packet is large enought to contain the returned ip header.
! 116: * Only then can we do the check to see if 64 bits of packet
! 117: * data have been returned, since we need to check the returned
! 118: * ip header length.
! 119: */
! 120: #define ICMP_MINLEN 8 /* abs minimum */
! 121: #define ICMP_TSLEN (8 + 3 * sizeof (u_int32_t)) /* timestamp */
! 122: #define ICMP_MASKLEN 12 /* address mask */
! 123: #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
! 124: #define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
! 125: /* N.B.: must separately check that ip_hl >= 5 */
! 126:
! 127: /*
! 128: * Definition of type and code field values.
! 129: */
! 130: #define ICMP_ECHOREPLY 0 /* echo reply */
! 131: #define ICMP_UNREACH 3 /* dest unreachable, codes: */
! 132: #define ICMP_UNREACH_NET 0 /* bad net */
! 133: #define ICMP_UNREACH_HOST 1 /* bad host */
! 134: #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
! 135: #define ICMP_UNREACH_PORT 3 /* bad port */
! 136: #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
! 137: #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
! 138: #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
! 139: #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
! 140: #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
! 141: #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
! 142: #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
! 143: #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
! 144: #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
! 145: #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
! 146: #define ICMP_REDIRECT 5 /* shorter route, codes: */
! 147: #define ICMP_REDIRECT_NET 0 /* for network */
! 148: #define ICMP_REDIRECT_HOST 1 /* for host */
! 149: #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
! 150: #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
! 151: #define ICMP_ECHO 8 /* echo service */
! 152: #define ICMP_ROUTERADVERT 9 /* router advertisement */
! 153: #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
! 154: #define ICMP_TIMXCEED 11 /* time exceeded, code: */
! 155: #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
! 156: #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
! 157: #define ICMP_PARAMPROB 12 /* ip header bad */
! 158: #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
! 159: #define ICMP_TSTAMP 13 /* timestamp request */
! 160: #define ICMP_TSTAMPREPLY 14 /* timestamp reply */
! 161: #define ICMP_IREQ 15 /* information request */
! 162: #define ICMP_IREQREPLY 16 /* information reply */
! 163: #define ICMP_MASKREQ 17 /* address mask request */
! 164: #define ICMP_MASKREPLY 18 /* address mask reply */
! 165:
! 166: #define ICMP_MAXTYPE 18
! 167:
! 168: #define ICMP_INFOTYPE(type) \
! 169: ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
! 170: (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
! 171: (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
! 172: (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
! 173: (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
! 174:
! 175: #ifdef _KERNEL
! 176: void icmp_error __P((struct mbuf *, int, int, n_long, struct ifnet *));
! 177: void icmp_input __P((struct mbuf *, ...));
! 178: void icmp_reflect __P((struct mbuf *));
! 179: void icmp_send __P((struct mbuf *, struct mbuf *));
! 180: int icmp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
! 181: #endif
! 182:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to ip_icmp.h CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / dhcp / includes / netinet