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[/] [or1k/] [trunk/] [linux/] [uClibc/] [include/] [netinet/] [ip_icmp.h] - Blame information for rev 1765

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1 1325 phoenix
/* Copyright (C) 1991, 92, 93, 95, 96, 97, 99 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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   02111-1307 USA.  */
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#ifndef __NETINET_IP_ICMP_H
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#define __NETINET_IP_ICMP_H    1
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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struct icmphdr
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{
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  u_int8_t type;                /* message type */
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  u_int8_t code;                /* type sub-code */
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  u_int16_t checksum;
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  union
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  {
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    struct
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    {
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      u_int16_t id;
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      u_int16_t sequence;
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    } echo;                     /* echo datagram */
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    u_int32_t   gateway;        /* gateway address */
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    struct
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    {
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      u_int16_t __unused;
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      u_int16_t mtu;
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    } frag;                     /* path mtu discovery */
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  } un;
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};
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#define ICMP_ECHOREPLY          0        /* Echo Reply                   */
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#define ICMP_DEST_UNREACH       3       /* Destination Unreachable      */
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#define ICMP_SOURCE_QUENCH      4       /* Source Quench                */
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#define ICMP_REDIRECT           5       /* Redirect (change route)      */
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#define ICMP_ECHO               8       /* Echo Request                 */
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#define ICMP_TIME_EXCEEDED      11      /* Time Exceeded                */
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#define ICMP_PARAMETERPROB      12      /* Parameter Problem            */
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#define ICMP_TIMESTAMP          13      /* Timestamp Request            */
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#define ICMP_TIMESTAMPREPLY     14      /* Timestamp Reply              */
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#define ICMP_INFO_REQUEST       15      /* Information Request          */
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#define ICMP_INFO_REPLY         16      /* Information Reply            */
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#define ICMP_ADDRESS            17      /* Address Mask Request         */
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#define ICMP_ADDRESSREPLY       18      /* Address Mask Reply           */
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#define NR_ICMP_TYPES           18
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/* Codes for UNREACH. */
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#define ICMP_NET_UNREACH        0        /* Network Unreachable          */
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#define ICMP_HOST_UNREACH       1       /* Host Unreachable             */
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#define ICMP_PROT_UNREACH       2       /* Protocol Unreachable         */
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#define ICMP_PORT_UNREACH       3       /* Port Unreachable             */
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#define ICMP_FRAG_NEEDED        4       /* Fragmentation Needed/DF set  */
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#define ICMP_SR_FAILED          5       /* Source Route failed          */
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#define ICMP_NET_UNKNOWN        6
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#define ICMP_HOST_UNKNOWN       7
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#define ICMP_HOST_ISOLATED      8
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#define ICMP_NET_ANO            9
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#define ICMP_HOST_ANO           10
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#define ICMP_NET_UNR_TOS        11
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#define ICMP_HOST_UNR_TOS       12
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#define ICMP_PKT_FILTERED       13      /* Packet filtered */
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#define ICMP_PREC_VIOLATION     14      /* Precedence violation */
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#define ICMP_PREC_CUTOFF        15      /* Precedence cut off */
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#define NR_ICMP_UNREACH         15      /* instead of hardcoding immediate value */
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/* Codes for REDIRECT. */
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#define ICMP_REDIR_NET          0        /* Redirect Net                 */
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#define ICMP_REDIR_HOST         1       /* Redirect Host                */
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#define ICMP_REDIR_NETTOS       2       /* Redirect Net for TOS         */
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#define ICMP_REDIR_HOSTTOS      3       /* Redirect Host for TOS        */
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/* Codes for TIME_EXCEEDED. */
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#define ICMP_EXC_TTL            0        /* TTL count exceeded           */
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#define ICMP_EXC_FRAGTIME       1       /* Fragment Reass time exceeded */
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#ifdef __USE_BSD
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/*
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 * Copyright (c) 1982, 1986, 1993
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 *      The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 4. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *      @(#)ip_icmp.h   8.1 (Berkeley) 6/10/93
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 */
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#include <netinet/in.h>
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#include <netinet/ip.h>
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/*
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 * Internal of an ICMP Router Advertisement
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 */
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struct icmp_ra_addr
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{
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  u_int32_t ira_addr;
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  u_int32_t ira_preference;
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};
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struct icmp
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{
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  u_int8_t  icmp_type;  /* type of message, see below */
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  u_int8_t  icmp_code;  /* type sub code */
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  u_int16_t icmp_cksum; /* ones complement checksum of struct */
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  union
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  {
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    u_char ih_pptr;             /* ICMP_PARAMPROB */
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    struct in_addr ih_gwaddr;   /* gateway address */
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    struct ih_idseq             /* echo datagram */
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    {
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      u_int16_t icd_id;
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      u_int16_t icd_seq;
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    } ih_idseq;
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    u_int32_t ih_void;
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    /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
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    struct ih_pmtu
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    {
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      u_int16_t ipm_void;
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      u_int16_t ipm_nextmtu;
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    } ih_pmtu;
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    struct ih_rtradv
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    {
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      u_int8_t irt_num_addrs;
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      u_int8_t irt_wpa;
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      u_int16_t irt_lifetime;
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    } ih_rtradv;
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  } icmp_hun;
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#define icmp_pptr       icmp_hun.ih_pptr
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#define icmp_gwaddr     icmp_hun.ih_gwaddr
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#define icmp_id         icmp_hun.ih_idseq.icd_id
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#define icmp_seq        icmp_hun.ih_idseq.icd_seq
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#define icmp_void       icmp_hun.ih_void
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#define icmp_pmvoid     icmp_hun.ih_pmtu.ipm_void
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#define icmp_nextmtu    icmp_hun.ih_pmtu.ipm_nextmtu
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#define icmp_num_addrs  icmp_hun.ih_rtradv.irt_num_addrs
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#define icmp_wpa        icmp_hun.ih_rtradv.irt_wpa
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#define icmp_lifetime   icmp_hun.ih_rtradv.irt_lifetime
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  union
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  {
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    struct
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    {
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      u_int32_t its_otime;
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      u_int32_t its_rtime;
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      u_int32_t its_ttime;
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    } id_ts;
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    struct
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    {
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      struct ip idi_ip;
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      /* options and then 64 bits of data */
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    } id_ip;
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    struct icmp_ra_addr id_radv;
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    u_int32_t   id_mask;
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    u_int8_t    id_data[1];
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  } icmp_dun;
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#define icmp_otime      icmp_dun.id_ts.its_otime
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#define icmp_rtime      icmp_dun.id_ts.its_rtime
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#define icmp_ttime      icmp_dun.id_ts.its_ttime
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#define icmp_ip         icmp_dun.id_ip.idi_ip
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#define icmp_radv       icmp_dun.id_radv
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#define icmp_mask       icmp_dun.id_mask
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#define icmp_data       icmp_dun.id_data
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};
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/*
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 * Lower bounds on packet lengths for various types.
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 * For the error advice packets must first insure that the
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 * packet is large enough to contain the returned ip header.
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 * Only then can we do the check to see if 64 bits of packet
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 * data have been returned, since we need to check the returned
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 * ip header length.
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 */
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#define ICMP_MINLEN     8                               /* abs minimum */
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#define ICMP_TSLEN      (8 + 3 * sizeof (n_time))       /* timestamp */
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#define ICMP_MASKLEN    12                              /* address mask */
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#define ICMP_ADVLENMIN  (8 + sizeof (struct ip) + 8)    /* min */
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#ifndef _IP_VHL
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#define ICMP_ADVLEN(p)  (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
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        /* N.B.: must separately check that ip_hl >= 5 */
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#else
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#define ICMP_ADVLEN(p)  (8 + (IP_VHL_HL((p)->icmp_ip.ip_vhl) << 2) + 8)
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        /* N.B.: must separately check that header length >= 5 */
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#endif
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/* Definition of type and code fields. */
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/* defined above: ICMP_ECHOREPLY, ICMP_REDIRECT, ICMP_ECHO */
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#define ICMP_UNREACH            3               /* dest unreachable, codes: */
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#define ICMP_SOURCEQUENCH       4               /* packet lost, slow down */
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#define ICMP_ROUTERADVERT       9               /* router advertisement */
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#define ICMP_ROUTERSOLICIT      10              /* router solicitation */
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#define ICMP_TIMXCEED           11              /* time exceeded, code: */
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#define ICMP_PARAMPROB          12              /* ip header bad */
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#define ICMP_TSTAMP             13              /* timestamp request */
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#define ICMP_TSTAMPREPLY        14              /* timestamp reply */
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#define ICMP_IREQ               15              /* information request */
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#define ICMP_IREQREPLY          16              /* information reply */
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#define ICMP_MASKREQ            17              /* address mask request */
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#define ICMP_MASKREPLY          18              /* address mask reply */
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#define ICMP_MAXTYPE            18
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/* UNREACH codes */
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#define ICMP_UNREACH_NET                0       /* bad net */
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#define ICMP_UNREACH_HOST               1       /* bad host */
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#define ICMP_UNREACH_PROTOCOL           2       /* bad protocol */
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#define ICMP_UNREACH_PORT               3       /* bad port */
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#define ICMP_UNREACH_NEEDFRAG           4       /* IP_DF caused drop */
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#define ICMP_UNREACH_SRCFAIL            5       /* src route failed */
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#define ICMP_UNREACH_NET_UNKNOWN        6       /* unknown net */
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#define ICMP_UNREACH_HOST_UNKNOWN       7       /* unknown host */
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#define ICMP_UNREACH_ISOLATED           8       /* src host isolated */
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#define ICMP_UNREACH_NET_PROHIB         9       /* net denied */
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#define ICMP_UNREACH_HOST_PROHIB        10      /* host denied */
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#define ICMP_UNREACH_TOSNET             11      /* bad tos for net */
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#define ICMP_UNREACH_TOSHOST            12      /* bad tos for host */
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#define ICMP_UNREACH_FILTER_PROHIB      13      /* admin prohib */
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#define ICMP_UNREACH_HOST_PRECEDENCE    14      /* host prec vio. */
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#define ICMP_UNREACH_PRECEDENCE_CUTOFF  15      /* prec cutoff */
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/* REDIRECT codes */
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#define ICMP_REDIRECT_NET       0                /* for network */
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#define ICMP_REDIRECT_HOST      1               /* for host */
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#define ICMP_REDIRECT_TOSNET    2               /* for tos and net */
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#define ICMP_REDIRECT_TOSHOST   3               /* for tos and host */
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/* TIMEXCEED codes */
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#define ICMP_TIMXCEED_INTRANS   0                /* ttl==0 in transit */
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#define ICMP_TIMXCEED_REASS     1               /* ttl==0 in reass */
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/* PARAMPROB code */
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#define ICMP_PARAMPROB_OPTABSENT 1              /* req. opt. absent */
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#define ICMP_INFOTYPE(type) \
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        ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
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        (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
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        (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
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        (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
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        (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
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279
#endif /* __USE_BSD */
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281
__END_DECLS
282
 
283
#endif /* netinet/ip_icmp.h */

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