The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/netinet/ip_icmp.h

Version: -  FREEBSD  -  FREEBSD11  -  FREEBSD10  -  FREEBSD9  -  FREEBSD92  -  FREEBSD91  -  FREEBSD90  -  FREEBSD8  -  FREEBSD82  -  FREEBSD81  -  FREEBSD80  -  FREEBSD7  -  FREEBSD74  -  FREEBSD73  -  FREEBSD72  -  FREEBSD71  -  FREEBSD70  -  FREEBSD6  -  FREEBSD64  -  FREEBSD63  -  FREEBSD62  -  FREEBSD61  -  FREEBSD60  -  FREEBSD5  -  FREEBSD55  -  FREEBSD54  -  FREEBSD53  -  FREEBSD52  -  FREEBSD51  -  FREEBSD50  -  FREEBSD4  -  FREEBSD3  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1982, 1986, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      @(#)ip_icmp.h   8.1 (Berkeley) 6/10/93
   30  * $FreeBSD: releng/8.2/sys/netinet/ip_icmp.h 207695 2010-05-06 06:44:19Z bz $
   31  */
   32 
   33 #ifndef _NETINET_IP_ICMP_H_
   34 #define _NETINET_IP_ICMP_H_
   35 
   36 /*
   37  * Interface Control Message Protocol Definitions.
   38  * Per RFC 792, September 1981.
   39  */
   40 
   41 /*
   42  * Internal of an ICMP Router Advertisement
   43  */
   44 struct icmp_ra_addr {
   45         u_int32_t ira_addr;
   46         u_int32_t ira_preference;
   47 };
   48 
   49 /*
   50  * Structure of an icmp header.
   51  */
   52 struct icmphdr {
   53         u_char  icmp_type;              /* type of message, see below */
   54         u_char  icmp_code;              /* type sub code */
   55         u_short icmp_cksum;             /* ones complement cksum of struct */
   56 };
   57 
   58 /*
   59  * Structure of an icmp packet.
   60  *
   61  * XXX: should start with a struct icmphdr.
   62  */
   63 struct icmp {
   64         u_char  icmp_type;              /* type of message, see below */
   65         u_char  icmp_code;              /* type sub code */
   66         u_short icmp_cksum;             /* ones complement cksum of struct */
   67         union {
   68                 u_char ih_pptr;                 /* ICMP_PARAMPROB */
   69                 struct in_addr ih_gwaddr;       /* ICMP_REDIRECT */
   70                 struct ih_idseq {
   71                         uint16_t        icd_id; /* network format */
   72                         uint16_t        icd_seq; /* network format */
   73                 } ih_idseq;
   74                 int ih_void;
   75 
   76                 /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
   77                 struct ih_pmtu {
   78                         uint16_t ipm_void;      /* network format */
   79                         uint16_t ipm_nextmtu;   /* network format */
   80                 } ih_pmtu;
   81 
   82                 struct ih_rtradv {
   83                         u_char irt_num_addrs;
   84                         u_char irt_wpa;
   85                         u_int16_t irt_lifetime;
   86                 } ih_rtradv;
   87         } icmp_hun;
   88 #define icmp_pptr       icmp_hun.ih_pptr
   89 #define icmp_gwaddr     icmp_hun.ih_gwaddr
   90 #define icmp_id         icmp_hun.ih_idseq.icd_id
   91 #define icmp_seq        icmp_hun.ih_idseq.icd_seq
   92 #define icmp_void       icmp_hun.ih_void
   93 #define icmp_pmvoid     icmp_hun.ih_pmtu.ipm_void
   94 #define icmp_nextmtu    icmp_hun.ih_pmtu.ipm_nextmtu
   95 #define icmp_num_addrs  icmp_hun.ih_rtradv.irt_num_addrs
   96 #define icmp_wpa        icmp_hun.ih_rtradv.irt_wpa
   97 #define icmp_lifetime   icmp_hun.ih_rtradv.irt_lifetime
   98         union {
   99                 struct id_ts {                  /* ICMP Timestamp */
  100                         /*
  101                          * The next 3 fields are in network format,
  102                          * milliseconds since 00:00 GMT
  103                          */
  104                         uint32_t its_otime;     /* Originate */
  105                         uint32_t its_rtime;     /* Receive */
  106                         uint32_t its_ttime;     /* Transmit */
  107                 } id_ts;
  108                 struct id_ip  {
  109                         struct ip idi_ip;
  110                         /* options and then 64 bits of data */
  111                 } id_ip;
  112                 struct icmp_ra_addr id_radv;
  113                 u_int32_t id_mask;
  114                 char    id_data[1];
  115         } icmp_dun;
  116 #define icmp_otime      icmp_dun.id_ts.its_otime
  117 #define icmp_rtime      icmp_dun.id_ts.its_rtime
  118 #define icmp_ttime      icmp_dun.id_ts.its_ttime
  119 #define icmp_ip         icmp_dun.id_ip.idi_ip
  120 #define icmp_radv       icmp_dun.id_radv
  121 #define icmp_mask       icmp_dun.id_mask
  122 #define icmp_data       icmp_dun.id_data
  123 };
  124 
  125 /*
  126  * Lower bounds on packet lengths for various types.
  127  * For the error advice packets must first insure that the
  128  * packet is large enough to contain the returned ip header.
  129  * Only then can we do the check to see if 64 bits of packet
  130  * data have been returned, since we need to check the returned
  131  * ip header length.
  132  */
  133 #define ICMP_MINLEN     8                               /* abs minimum */
  134 #define ICMP_TSLEN      (8 + 3 * sizeof (uint32_t))     /* timestamp */
  135 #define ICMP_MASKLEN    12                              /* address mask */
  136 #define ICMP_ADVLENMIN  (8 + sizeof (struct ip) + 8)    /* min */
  137 #define ICMP_ADVLEN(p)  (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
  138         /* N.B.: must separately check that ip_hl >= 5 */
  139 
  140 /*
  141  * Definition of type and code field values.
  142  */
  143 #define ICMP_ECHOREPLY          0               /* echo reply */
  144 #define ICMP_UNREACH            3               /* dest unreachable, codes: */
  145 #define         ICMP_UNREACH_NET        0               /* bad net */
  146 #define         ICMP_UNREACH_HOST       1               /* bad host */
  147 #define         ICMP_UNREACH_PROTOCOL   2               /* bad protocol */
  148 #define         ICMP_UNREACH_PORT       3               /* bad port */
  149 #define         ICMP_UNREACH_NEEDFRAG   4               /* IP_DF caused drop */
  150 #define         ICMP_UNREACH_SRCFAIL    5               /* src route failed */
  151 #define         ICMP_UNREACH_NET_UNKNOWN 6              /* unknown net */
  152 #define         ICMP_UNREACH_HOST_UNKNOWN 7             /* unknown host */
  153 #define         ICMP_UNREACH_ISOLATED   8               /* src host isolated */
  154 #define         ICMP_UNREACH_NET_PROHIB 9               /* prohibited access */
  155 #define         ICMP_UNREACH_HOST_PROHIB 10             /* ditto */
  156 #define         ICMP_UNREACH_TOSNET     11              /* bad tos for net */
  157 #define         ICMP_UNREACH_TOSHOST    12              /* bad tos for host */
  158 #define         ICMP_UNREACH_FILTER_PROHIB 13           /* admin prohib */
  159 #define         ICMP_UNREACH_HOST_PRECEDENCE 14         /* host prec vio. */
  160 #define         ICMP_UNREACH_PRECEDENCE_CUTOFF 15       /* prec cutoff */
  161 #define ICMP_SOURCEQUENCH       4               /* packet lost, slow down */
  162 #define ICMP_REDIRECT           5               /* shorter route, codes: */
  163 #define         ICMP_REDIRECT_NET       0               /* for network */
  164 #define         ICMP_REDIRECT_HOST      1               /* for host */
  165 #define         ICMP_REDIRECT_TOSNET    2               /* for tos and net */
  166 #define         ICMP_REDIRECT_TOSHOST   3               /* for tos and host */
  167 #define ICMP_ALTHOSTADDR        6               /* alternate host address */
  168 #define ICMP_ECHO               8               /* echo service */
  169 #define ICMP_ROUTERADVERT       9               /* router advertisement */
  170 #define         ICMP_ROUTERADVERT_NORMAL                0       /* normal advertisement */
  171 #define         ICMP_ROUTERADVERT_NOROUTE_COMMON        16      /* selective routing */
  172 #define ICMP_ROUTERSOLICIT      10              /* router solicitation */
  173 #define ICMP_TIMXCEED           11              /* time exceeded, code: */
  174 #define         ICMP_TIMXCEED_INTRANS   0               /* ttl==0 in transit */
  175 #define         ICMP_TIMXCEED_REASS     1               /* ttl==0 in reass */
  176 #define ICMP_PARAMPROB          12              /* ip header bad */
  177 #define         ICMP_PARAMPROB_ERRATPTR 0               /* error at param ptr */
  178 #define         ICMP_PARAMPROB_OPTABSENT 1              /* req. opt. absent */
  179 #define         ICMP_PARAMPROB_LENGTH 2                 /* bad length */
  180 #define ICMP_TSTAMP             13              /* timestamp request */
  181 #define ICMP_TSTAMPREPLY        14              /* timestamp reply */
  182 #define ICMP_IREQ               15              /* information request */
  183 #define ICMP_IREQREPLY          16              /* information reply */
  184 #define ICMP_MASKREQ            17              /* address mask request */
  185 #define ICMP_MASKREPLY          18              /* address mask reply */
  186 #define ICMP_TRACEROUTE         30              /* traceroute */
  187 #define ICMP_DATACONVERR        31              /* data conversion error */
  188 #define ICMP_MOBILE_REDIRECT    32              /* mobile host redirect */
  189 #define ICMP_IPV6_WHEREAREYOU   33              /* IPv6 where-are-you */
  190 #define ICMP_IPV6_IAMHERE       34              /* IPv6 i-am-here */
  191 #define ICMP_MOBILE_REGREQUEST  35              /* mobile registration req */
  192 #define ICMP_MOBILE_REGREPLY    36              /* mobile registration reply */
  193 #define ICMP_SKIP               39              /* SKIP */
  194 #define ICMP_PHOTURIS           40              /* Photuris */
  195 #define         ICMP_PHOTURIS_UNKNOWN_INDEX     1       /* unknown sec index */
  196 #define         ICMP_PHOTURIS_AUTH_FAILED       2       /* auth failed */
  197 #define         ICMP_PHOTURIS_DECRYPT_FAILED    3       /* decrypt failed */
  198 
  199 #define ICMP_MAXTYPE            40
  200 
  201 #define ICMP_INFOTYPE(type) \
  202         ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
  203         (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
  204         (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
  205         (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
  206         (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
  207 
  208 #ifdef _KERNEL
  209 void    icmp_error(struct mbuf *, int, int, uint32_t, int);
  210 void    icmp_input(struct mbuf *, int);
  211 int     ip_next_mtu(int, int);
  212 #endif
  213 
  214 #endif

Cache object: 23b622caad34158ed1cbfe1b573d8b28


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.