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/icmp6.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*      $FreeBSD: releng/5.3/sys/netinet/icmp6.h 136588 2004-10-16 08:43:07Z cvs2svn $  */
    2 /*      $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $  */
    3 
    4 /*
    5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the project nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * Copyright (c) 1982, 1986, 1993
   35  *      The Regents of the University of California.  All rights reserved.
   36  *
   37  * Redistribution and use in source and binary forms, with or without
   38  * modification, are permitted provided that the following conditions
   39  * are met:
   40  * 1. Redistributions of source code must retain the above copyright
   41  *    notice, this list of conditions and the following disclaimer.
   42  * 2. Redistributions in binary form must reproduce the above copyright
   43  *    notice, this list of conditions and the following disclaimer in the
   44  *    documentation and/or other materials provided with the distribution.
   45  * 4. Neither the name of the University nor the names of its contributors
   46  *    may be used to endorse or promote products derived from this software
   47  *    without specific prior written permission.
   48  *
   49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   59  * SUCH DAMAGE.
   60  *
   61  *      @(#)ip_icmp.h   8.1 (Berkeley) 6/10/93
   62  */
   63 
   64 #ifndef _NETINET_ICMP6_H_
   65 #define _NETINET_ICMP6_H_
   66 
   67 #define ICMPV6_PLD_MAXLEN       1232    /* IPV6_MMTU - sizeof(struct ip6_hdr)
   68                                            - sizeof(struct icmp6_hdr) */
   69 
   70 struct icmp6_hdr {
   71         u_int8_t        icmp6_type;     /* type field */
   72         u_int8_t        icmp6_code;     /* code field */
   73         u_int16_t       icmp6_cksum;    /* checksum field */
   74         union {
   75                 u_int32_t       icmp6_un_data32[1]; /* type-specific field */
   76                 u_int16_t       icmp6_un_data16[2]; /* type-specific field */
   77                 u_int8_t        icmp6_un_data8[4];  /* type-specific field */
   78         } icmp6_dataun;
   79 } __packed;
   80 
   81 #define icmp6_data32    icmp6_dataun.icmp6_un_data32
   82 #define icmp6_data16    icmp6_dataun.icmp6_un_data16
   83 #define icmp6_data8     icmp6_dataun.icmp6_un_data8
   84 #define icmp6_pptr      icmp6_data32[0]         /* parameter prob */
   85 #define icmp6_mtu       icmp6_data32[0]         /* packet too big */
   86 #define icmp6_id        icmp6_data16[0]         /* echo request/reply */
   87 #define icmp6_seq       icmp6_data16[1]         /* echo request/reply */
   88 #define icmp6_maxdelay  icmp6_data16[0]         /* mcast group membership */
   89 
   90 #define ICMP6_DST_UNREACH               1       /* dest unreachable, codes: */
   91 #define ICMP6_PACKET_TOO_BIG            2       /* packet too big */
   92 #define ICMP6_TIME_EXCEEDED             3       /* time exceeded, code: */
   93 #define ICMP6_PARAM_PROB                4       /* ip6 header bad */
   94 
   95 #define ICMP6_ECHO_REQUEST              128     /* echo service */
   96 #define ICMP6_ECHO_REPLY                129     /* echo reply */
   97 #define MLD_LISTENER_QUERY              130     /* multicast listener query */
   98 #define MLD_LISTENER_REPORT             131     /* multicast listener report */
   99 #define MLD_LISTENER_DONE               132     /* multicast listener done */
  100 
  101 /* RFC2292 decls */
  102 #define ICMP6_MEMBERSHIP_QUERY          130     /* group membership query */
  103 #define ICMP6_MEMBERSHIP_REPORT         131     /* group membership report */
  104 #define ICMP6_MEMBERSHIP_REDUCTION      132     /* group membership termination */
  105 
  106 #ifndef _KERNEL
  107 /* the followings are for backward compatibility to old KAME apps. */
  108 #define MLD6_LISTENER_QUERY     MLD_LISTENER_QUERY
  109 #define MLD6_LISTENER_REPORT    MLD_LISTENER_REPORT
  110 #define MLD6_LISTENER_DONE      MLD_LISTENER_DONE
  111 #endif
  112 
  113 #define ND_ROUTER_SOLICIT               133     /* router solicitation */
  114 #define ND_ROUTER_ADVERT                134     /* router advertisment */
  115 #define ND_NEIGHBOR_SOLICIT             135     /* neighbor solicitation */
  116 #define ND_NEIGHBOR_ADVERT              136     /* neighbor advertisment */
  117 #define ND_REDIRECT                     137     /* redirect */
  118 
  119 #define ICMP6_ROUTER_RENUMBERING        138     /* router renumbering */
  120 
  121 #define ICMP6_WRUREQUEST                139     /* who are you request */
  122 #define ICMP6_WRUREPLY                  140     /* who are you reply */
  123 #define ICMP6_FQDN_QUERY                139     /* FQDN query */
  124 #define ICMP6_FQDN_REPLY                140     /* FQDN reply */
  125 #define ICMP6_NI_QUERY                  139     /* node information request */
  126 #define ICMP6_NI_REPLY                  140     /* node information reply */
  127 
  128 /* The definitions below are experimental. TBA */
  129 #define MLD_MTRACE_RESP                 200     /* mtrace resp (to sender) */
  130 #define MLD_MTRACE                      201     /* mtrace messages */
  131 
  132 #ifndef _KERNEL
  133 #define MLD6_MTRACE_RESP        MLD_MTRACE_RESP
  134 #define MLD6_MTRACE             MLD_MTRACE
  135 #endif
  136 
  137 #define ICMP6_MAXTYPE                   201
  138 
  139 #define ICMP6_DST_UNREACH_NOROUTE       0       /* no route to destination */
  140 #define ICMP6_DST_UNREACH_ADMIN         1       /* administratively prohibited */
  141 #define ICMP6_DST_UNREACH_NOTNEIGHBOR   2       /* not a neighbor(obsolete) */
  142 #define ICMP6_DST_UNREACH_BEYONDSCOPE   2       /* beyond scope of source address */
  143 #define ICMP6_DST_UNREACH_ADDR          3       /* address unreachable */
  144 #define ICMP6_DST_UNREACH_NOPORT        4       /* port unreachable */
  145 
  146 #define ICMP6_TIME_EXCEED_TRANSIT       0       /* ttl==0 in transit */
  147 #define ICMP6_TIME_EXCEED_REASSEMBLY    1       /* ttl==0 in reass */
  148 
  149 #define ICMP6_PARAMPROB_HEADER          0       /* erroneous header field */
  150 #define ICMP6_PARAMPROB_NEXTHEADER      1       /* unrecognized next header */
  151 #define ICMP6_PARAMPROB_OPTION          2       /* unrecognized option */
  152 
  153 #define ICMP6_INFOMSG_MASK              0x80    /* all informational messages */
  154 
  155 #define ICMP6_NI_SUBJ_IPV6      0       /* Query Subject is an IPv6 address */
  156 #define ICMP6_NI_SUBJ_FQDN      1       /* Query Subject is a Domain name */
  157 #define ICMP6_NI_SUBJ_IPV4      2       /* Query Subject is an IPv4 address */
  158 
  159 #define ICMP6_NI_SUCCESS        0       /* node information successful reply */
  160 #define ICMP6_NI_REFUSED        1       /* node information request is refused */
  161 #define ICMP6_NI_UNKNOWN        2       /* unknown Qtype */
  162 
  163 #define ICMP6_ROUTER_RENUMBERING_COMMAND  0     /* rr command */
  164 #define ICMP6_ROUTER_RENUMBERING_RESULT   1     /* rr result */
  165 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255     /* rr seq num reset */
  166 
  167 /* Used in kernel only */
  168 #define ND_REDIRECT_ONLINK      0       /* redirect to an on-link node */
  169 #define ND_REDIRECT_ROUTER      1       /* redirect to a better router */
  170 
  171 /*
  172  * Multicast Listener Discovery
  173  */
  174 struct mld_hdr {
  175         struct icmp6_hdr        mld_icmp6_hdr;
  176         struct in6_addr         mld_addr; /* multicast address */
  177 } __packed;
  178 
  179 /* definitions to provide backward compatibility to old KAME applications */
  180 #ifndef _KERNEL
  181 #define mld6_hdr        mld_hdr
  182 #define mld6_type       mld_type
  183 #define mld6_code       mld_code
  184 #define mld6_cksum      mld_cksum
  185 #define mld6_maxdelay   mld_maxdelay
  186 #define mld6_reserved   mld_reserved
  187 #define mld6_addr       mld_addr
  188 #endif
  189 
  190 /* shortcut macro definitions */
  191 #define mld_type        mld_icmp6_hdr.icmp6_type
  192 #define mld_code        mld_icmp6_hdr.icmp6_code
  193 #define mld_cksum       mld_icmp6_hdr.icmp6_cksum
  194 #define mld_maxdelay    mld_icmp6_hdr.icmp6_data16[0]
  195 #define mld_reserved    mld_icmp6_hdr.icmp6_data16[1]
  196 
  197 /*
  198  * Neighbor Discovery
  199  */
  200 
  201 struct nd_router_solicit {      /* router solicitation */
  202         struct icmp6_hdr        nd_rs_hdr;
  203         /* could be followed by options */
  204 } __packed;
  205 
  206 #define nd_rs_type      nd_rs_hdr.icmp6_type
  207 #define nd_rs_code      nd_rs_hdr.icmp6_code
  208 #define nd_rs_cksum     nd_rs_hdr.icmp6_cksum
  209 #define nd_rs_reserved  nd_rs_hdr.icmp6_data32[0]
  210 
  211 struct nd_router_advert {       /* router advertisement */
  212         struct icmp6_hdr        nd_ra_hdr;
  213         u_int32_t               nd_ra_reachable;        /* reachable time */
  214         u_int32_t               nd_ra_retransmit;       /* retransmit timer */
  215         /* could be followed by options */
  216 } __packed;
  217 
  218 #define nd_ra_type              nd_ra_hdr.icmp6_type
  219 #define nd_ra_code              nd_ra_hdr.icmp6_code
  220 #define nd_ra_cksum             nd_ra_hdr.icmp6_cksum
  221 #define nd_ra_curhoplimit       nd_ra_hdr.icmp6_data8[0]
  222 #define nd_ra_flags_reserved    nd_ra_hdr.icmp6_data8[1]
  223 #define ND_RA_FLAG_MANAGED      0x80
  224 #define ND_RA_FLAG_OTHER        0x40
  225 #define ND_RA_FLAG_HA           0x20
  226 
  227 /*
  228  * Router preference values based on draft-draves-ipngwg-router-selection-01.
  229  * These are non-standard definitions.
  230  */
  231 #define ND_RA_FLAG_RTPREF_MASK  0x18 /* 00011000 */
  232 
  233 #define ND_RA_FLAG_RTPREF_HIGH  0x08 /* 00001000 */
  234 #define ND_RA_FLAG_RTPREF_MEDIUM        0x00 /* 00000000 */
  235 #define ND_RA_FLAG_RTPREF_LOW   0x18 /* 00011000 */
  236 #define ND_RA_FLAG_RTPREF_RSV   0x10 /* 00010000 */
  237 
  238 #define nd_ra_router_lifetime   nd_ra_hdr.icmp6_data16[1]
  239 
  240 struct nd_neighbor_solicit {    /* neighbor solicitation */
  241         struct icmp6_hdr        nd_ns_hdr;
  242         struct in6_addr         nd_ns_target;   /*target address */
  243         /* could be followed by options */
  244 } __packed;
  245 
  246 #define nd_ns_type              nd_ns_hdr.icmp6_type
  247 #define nd_ns_code              nd_ns_hdr.icmp6_code
  248 #define nd_ns_cksum             nd_ns_hdr.icmp6_cksum
  249 #define nd_ns_reserved          nd_ns_hdr.icmp6_data32[0]
  250 
  251 struct nd_neighbor_advert {     /* neighbor advertisement */
  252         struct icmp6_hdr        nd_na_hdr;
  253         struct in6_addr         nd_na_target;   /* target address */
  254         /* could be followed by options */
  255 } __packed;
  256 
  257 #define nd_na_type              nd_na_hdr.icmp6_type
  258 #define nd_na_code              nd_na_hdr.icmp6_code
  259 #define nd_na_cksum             nd_na_hdr.icmp6_cksum
  260 #define nd_na_flags_reserved    nd_na_hdr.icmp6_data32[0]
  261 #if BYTE_ORDER == BIG_ENDIAN
  262 #define ND_NA_FLAG_ROUTER               0x80000000
  263 #define ND_NA_FLAG_SOLICITED            0x40000000
  264 #define ND_NA_FLAG_OVERRIDE             0x20000000
  265 #else
  266 #if BYTE_ORDER == LITTLE_ENDIAN
  267 #define ND_NA_FLAG_ROUTER               0x80
  268 #define ND_NA_FLAG_SOLICITED            0x40
  269 #define ND_NA_FLAG_OVERRIDE             0x20
  270 #endif
  271 #endif
  272 
  273 struct nd_redirect {            /* redirect */
  274         struct icmp6_hdr        nd_rd_hdr;
  275         struct in6_addr         nd_rd_target;   /* target address */
  276         struct in6_addr         nd_rd_dst;      /* destination address */
  277         /* could be followed by options */
  278 } __packed;
  279 
  280 #define nd_rd_type              nd_rd_hdr.icmp6_type
  281 #define nd_rd_code              nd_rd_hdr.icmp6_code
  282 #define nd_rd_cksum             nd_rd_hdr.icmp6_cksum
  283 #define nd_rd_reserved          nd_rd_hdr.icmp6_data32[0]
  284 
  285 struct nd_opt_hdr {             /* Neighbor discovery option header */
  286         u_int8_t        nd_opt_type;
  287         u_int8_t        nd_opt_len;
  288         /* followed by option specific data*/
  289 } __packed;
  290 
  291 #define ND_OPT_SOURCE_LINKADDR          1
  292 #define ND_OPT_TARGET_LINKADDR          2
  293 #define ND_OPT_PREFIX_INFORMATION       3
  294 #define ND_OPT_REDIRECTED_HEADER        4
  295 #define ND_OPT_MTU                      5
  296 
  297 #define ND_OPT_ROUTE_INFO               200     /* draft-ietf-ipngwg-router-preference, not officially assigned yet */
  298 
  299 struct nd_opt_prefix_info {     /* prefix information */
  300         u_int8_t        nd_opt_pi_type;
  301         u_int8_t        nd_opt_pi_len;
  302         u_int8_t        nd_opt_pi_prefix_len;
  303         u_int8_t        nd_opt_pi_flags_reserved;
  304         u_int32_t       nd_opt_pi_valid_time;
  305         u_int32_t       nd_opt_pi_preferred_time;
  306         u_int32_t       nd_opt_pi_reserved2;
  307         struct in6_addr nd_opt_pi_prefix;
  308 } __packed;
  309 
  310 #define ND_OPT_PI_FLAG_ONLINK           0x80
  311 #define ND_OPT_PI_FLAG_AUTO             0x40
  312 
  313 struct nd_opt_rd_hdr {          /* redirected header */
  314         u_int8_t        nd_opt_rh_type;
  315         u_int8_t        nd_opt_rh_len;
  316         u_int16_t       nd_opt_rh_reserved1;
  317         u_int32_t       nd_opt_rh_reserved2;
  318         /* followed by IP header and data */
  319 } __packed;
  320 
  321 struct nd_opt_mtu {             /* MTU option */
  322         u_int8_t        nd_opt_mtu_type;
  323         u_int8_t        nd_opt_mtu_len;
  324         u_int16_t       nd_opt_mtu_reserved;
  325         u_int32_t       nd_opt_mtu_mtu;
  326 } __packed;
  327 
  328 struct nd_opt_route_info {      /* route info */
  329         u_int8_t        nd_opt_rti_type;
  330         u_int8_t        nd_opt_rti_len;
  331         u_int8_t        nd_opt_rti_prefixlen;
  332         u_int8_t        nd_opt_rti_flags;
  333         u_int32_t       nd_opt_rti_lifetime;
  334         /* prefix follows */
  335 } __packed;
  336 
  337 /*
  338  * icmp6 namelookup
  339  */
  340 
  341 struct icmp6_namelookup {
  342         struct icmp6_hdr        icmp6_nl_hdr;
  343         u_int8_t        icmp6_nl_nonce[8];
  344         int32_t         icmp6_nl_ttl;
  345 #if 0
  346         u_int8_t        icmp6_nl_len;
  347         u_int8_t        icmp6_nl_name[3];
  348 #endif
  349         /* could be followed by options */
  350 } __packed;
  351 
  352 /*
  353  * icmp6 node information
  354  */
  355 struct icmp6_nodeinfo {
  356         struct icmp6_hdr icmp6_ni_hdr;
  357         u_int8_t icmp6_ni_nonce[8];
  358         /* could be followed by reply data */
  359 } __packed;
  360 
  361 #define ni_type         icmp6_ni_hdr.icmp6_type
  362 #define ni_code         icmp6_ni_hdr.icmp6_code
  363 #define ni_cksum        icmp6_ni_hdr.icmp6_cksum
  364 #define ni_qtype        icmp6_ni_hdr.icmp6_data16[0]
  365 #define ni_flags        icmp6_ni_hdr.icmp6_data16[1]
  366 
  367 #define NI_QTYPE_NOOP           0 /* NOOP  */
  368 #define NI_QTYPE_SUPTYPES       1 /* Supported Qtypes */
  369 #define NI_QTYPE_FQDN           2 /* FQDN (draft 04) */
  370 #define NI_QTYPE_DNSNAME        2 /* DNS Name */
  371 #define NI_QTYPE_NODEADDR       3 /* Node Addresses */
  372 #define NI_QTYPE_IPV4ADDR       4 /* IPv4 Addresses */
  373 
  374 #if BYTE_ORDER == BIG_ENDIAN
  375 #define NI_SUPTYPE_FLAG_COMPRESS        0x1
  376 #define NI_FQDN_FLAG_VALIDTTL           0x1
  377 #elif BYTE_ORDER == LITTLE_ENDIAN
  378 #define NI_SUPTYPE_FLAG_COMPRESS        0x0100
  379 #define NI_FQDN_FLAG_VALIDTTL           0x0100
  380 #endif
  381 
  382 #ifdef NAME_LOOKUPS_04
  383 #if BYTE_ORDER == BIG_ENDIAN
  384 #define NI_NODEADDR_FLAG_LINKLOCAL      0x1
  385 #define NI_NODEADDR_FLAG_SITELOCAL      0x2
  386 #define NI_NODEADDR_FLAG_GLOBAL         0x4
  387 #define NI_NODEADDR_FLAG_ALL            0x8
  388 #define NI_NODEADDR_FLAG_TRUNCATE       0x10
  389 #define NI_NODEADDR_FLAG_ANYCAST        0x20 /* just experimental. not in spec */
  390 #elif BYTE_ORDER == LITTLE_ENDIAN
  391 #define NI_NODEADDR_FLAG_LINKLOCAL      0x0100
  392 #define NI_NODEADDR_FLAG_SITELOCAL      0x0200
  393 #define NI_NODEADDR_FLAG_GLOBAL         0x0400
  394 #define NI_NODEADDR_FLAG_ALL            0x0800
  395 #define NI_NODEADDR_FLAG_TRUNCATE       0x1000
  396 #define NI_NODEADDR_FLAG_ANYCAST        0x2000 /* just experimental. not in spec */
  397 #endif
  398 #else  /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
  399 #if BYTE_ORDER == BIG_ENDIAN
  400 #define NI_NODEADDR_FLAG_TRUNCATE       0x1
  401 #define NI_NODEADDR_FLAG_ALL            0x2
  402 #define NI_NODEADDR_FLAG_COMPAT         0x4
  403 #define NI_NODEADDR_FLAG_LINKLOCAL      0x8
  404 #define NI_NODEADDR_FLAG_SITELOCAL      0x10
  405 #define NI_NODEADDR_FLAG_GLOBAL         0x20
  406 #define NI_NODEADDR_FLAG_ANYCAST        0x40 /* just experimental. not in spec */
  407 #elif BYTE_ORDER == LITTLE_ENDIAN
  408 #define NI_NODEADDR_FLAG_TRUNCATE       0x0100
  409 #define NI_NODEADDR_FLAG_ALL            0x0200
  410 #define NI_NODEADDR_FLAG_COMPAT         0x0400
  411 #define NI_NODEADDR_FLAG_LINKLOCAL      0x0800
  412 #define NI_NODEADDR_FLAG_SITELOCAL      0x1000
  413 #define NI_NODEADDR_FLAG_GLOBAL         0x2000
  414 #define NI_NODEADDR_FLAG_ANYCAST        0x4000 /* just experimental. not in spec */
  415 #endif
  416 #endif
  417 
  418 struct ni_reply_fqdn {
  419         u_int32_t ni_fqdn_ttl;  /* TTL */
  420         u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
  421         u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
  422 } __packed;
  423 
  424 /*
  425  * Router Renumbering. as router-renum-08.txt
  426  */
  427 struct icmp6_router_renum {     /* router renumbering header */
  428         struct icmp6_hdr        rr_hdr;
  429         u_int8_t        rr_segnum;
  430         u_int8_t        rr_flags;
  431         u_int16_t       rr_maxdelay;
  432         u_int32_t       rr_reserved;
  433 } __packed;
  434 
  435 #define ICMP6_RR_FLAGS_TEST             0x80
  436 #define ICMP6_RR_FLAGS_REQRESULT        0x40
  437 #define ICMP6_RR_FLAGS_FORCEAPPLY       0x20
  438 #define ICMP6_RR_FLAGS_SPECSITE         0x10
  439 #define ICMP6_RR_FLAGS_PREVDONE         0x08
  440 
  441 #define rr_type         rr_hdr.icmp6_type
  442 #define rr_code         rr_hdr.icmp6_code
  443 #define rr_cksum        rr_hdr.icmp6_cksum
  444 #define rr_seqnum       rr_hdr.icmp6_data32[0]
  445 
  446 struct rr_pco_match {           /* match prefix part */
  447         u_int8_t        rpm_code;
  448         u_int8_t        rpm_len;
  449         u_int8_t        rpm_ordinal;
  450         u_int8_t        rpm_matchlen;
  451         u_int8_t        rpm_minlen;
  452         u_int8_t        rpm_maxlen;
  453         u_int16_t       rpm_reserved;
  454         struct  in6_addr        rpm_prefix;
  455 } __packed;
  456 
  457 #define RPM_PCO_ADD             1
  458 #define RPM_PCO_CHANGE          2
  459 #define RPM_PCO_SETGLOBAL       3
  460 #define RPM_PCO_MAX             4
  461 
  462 struct rr_pco_use {             /* use prefix part */
  463         u_int8_t        rpu_uselen;
  464         u_int8_t        rpu_keeplen;
  465         u_int8_t        rpu_ramask;
  466         u_int8_t        rpu_raflags;
  467         u_int32_t       rpu_vltime;
  468         u_int32_t       rpu_pltime;
  469         u_int32_t       rpu_flags;
  470         struct  in6_addr rpu_prefix;
  471 } __packed;
  472 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK  0x80
  473 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO    0x40
  474 
  475 #if BYTE_ORDER == BIG_ENDIAN
  476 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     0x80000000
  477 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     0x40000000
  478 #elif BYTE_ORDER == LITTLE_ENDIAN
  479 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     0x80
  480 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     0x40
  481 #endif
  482 
  483 struct rr_result {              /* router renumbering result message */
  484         u_int16_t       rrr_flags;
  485         u_int8_t        rrr_ordinal;
  486         u_int8_t        rrr_matchedlen;
  487         u_int32_t       rrr_ifid;
  488         struct  in6_addr rrr_prefix;
  489 } __packed;
  490 #if BYTE_ORDER == BIG_ENDIAN
  491 #define ICMP6_RR_RESULT_FLAGS_OOB               0x0002
  492 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         0x0001
  493 #elif BYTE_ORDER == LITTLE_ENDIAN
  494 #define ICMP6_RR_RESULT_FLAGS_OOB               0x0200
  495 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         0x0100
  496 #endif
  497 
  498 /*
  499  * icmp6 filter structures.
  500  */
  501 
  502 struct icmp6_filter {
  503         u_int32_t icmp6_filt[8];
  504 };
  505 
  506 #ifdef _KERNEL
  507 #define ICMP6_FILTER_SETPASSALL(filterp) \
  508 do {                                                            \
  509         int i; u_char *p;                                       \
  510         p = (u_char *)filterp;                                  \
  511         for (i = 0; i < sizeof(struct icmp6_filter); i++)       \
  512                 p[i] = 0xff;                                    \
  513 } while (/*CONSTCOND*/ 0)
  514 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
  515         bzero(filterp, sizeof(struct icmp6_filter))
  516 #else /* _KERNEL */
  517 #define ICMP6_FILTER_SETPASSALL(filterp) \
  518         memset(filterp, 0xff, sizeof(struct icmp6_filter))
  519 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
  520         memset(filterp, 0x00, sizeof(struct icmp6_filter))
  521 #endif /* _KERNEL */
  522 
  523 #define ICMP6_FILTER_SETPASS(type, filterp) \
  524         (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
  525 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
  526         (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
  527 #define ICMP6_FILTER_WILLPASS(type, filterp) \
  528         ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
  529 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
  530         ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
  531 
  532 /*
  533  * Variables related to this implementation
  534  * of the internet control message protocol version 6.
  535  */
  536 struct icmp6errstat {
  537         u_quad_t icp6errs_dst_unreach_noroute;
  538         u_quad_t icp6errs_dst_unreach_admin;
  539         u_quad_t icp6errs_dst_unreach_beyondscope;
  540         u_quad_t icp6errs_dst_unreach_addr;
  541         u_quad_t icp6errs_dst_unreach_noport;
  542         u_quad_t icp6errs_packet_too_big;
  543         u_quad_t icp6errs_time_exceed_transit;
  544         u_quad_t icp6errs_time_exceed_reassembly;
  545         u_quad_t icp6errs_paramprob_header;
  546         u_quad_t icp6errs_paramprob_nextheader;
  547         u_quad_t icp6errs_paramprob_option;
  548         u_quad_t icp6errs_redirect; /* we regard redirect as an error here */
  549         u_quad_t icp6errs_unknown;
  550 };
  551 
  552 struct icmp6stat {
  553 /* statistics related to icmp6 packets generated */
  554         u_quad_t icp6s_error;           /* # of calls to icmp6_error */
  555         u_quad_t icp6s_canterror;       /* no error 'cuz old was icmp */
  556         u_quad_t icp6s_toofreq;         /* no error 'cuz rate limitation */
  557         u_quad_t icp6s_outhist[256];
  558 /* statistics related to input message processed */
  559         u_quad_t icp6s_badcode;         /* icmp6_code out of range */
  560         u_quad_t icp6s_tooshort;        /* packet < sizeof(struct icmp6_hdr) */
  561         u_quad_t icp6s_checksum;        /* bad checksum */
  562         u_quad_t icp6s_badlen;          /* calculated bound mismatch */
  563         /*
  564          * number of responses: this member is inherited from netinet code, but
  565          * for netinet6 code, it is already available in icp6s_outhist[].
  566          */
  567         u_quad_t icp6s_reflect;
  568         u_quad_t icp6s_inhist[256];     
  569         u_quad_t icp6s_nd_toomanyopt;   /* too many ND options */
  570         struct icmp6errstat icp6s_outerrhist;
  571 #define icp6s_odst_unreach_noroute \
  572         icp6s_outerrhist.icp6errs_dst_unreach_noroute
  573 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
  574 #define icp6s_odst_unreach_beyondscope \
  575         icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
  576 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
  577 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
  578 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
  579 #define icp6s_otime_exceed_transit \
  580         icp6s_outerrhist.icp6errs_time_exceed_transit
  581 #define icp6s_otime_exceed_reassembly \
  582         icp6s_outerrhist.icp6errs_time_exceed_reassembly
  583 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
  584 #define icp6s_oparamprob_nextheader \
  585         icp6s_outerrhist.icp6errs_paramprob_nextheader
  586 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
  587 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
  588 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
  589         u_quad_t icp6s_pmtuchg;         /* path MTU changes */
  590         u_quad_t icp6s_nd_badopt;       /* bad ND options */
  591         u_quad_t icp6s_badns;           /* bad neighbor solicitation */
  592         u_quad_t icp6s_badna;           /* bad neighbor advertisement */
  593         u_quad_t icp6s_badrs;           /* bad router advertisement */
  594         u_quad_t icp6s_badra;           /* bad router advertisement */
  595         u_quad_t icp6s_badredirect;     /* bad redirect message */
  596 };
  597 
  598 /*
  599  * Names for ICMP sysctl objects
  600  */
  601 #define ICMPV6CTL_STATS         1
  602 #define ICMPV6CTL_REDIRACCEPT   2       /* accept/process redirects */
  603 #define ICMPV6CTL_REDIRTIMEOUT  3       /* redirect cache time */
  604 #if 0   /*obsoleted*/
  605 #define ICMPV6CTL_ERRRATELIMIT  5       /* ICMPv6 error rate limitation */
  606 #endif
  607 #define ICMPV6CTL_ND6_PRUNE     6
  608 #define ICMPV6CTL_ND6_DELAY     8
  609 #define ICMPV6CTL_ND6_UMAXTRIES 9
  610 #define ICMPV6CTL_ND6_MMAXTRIES         10
  611 #define ICMPV6CTL_ND6_USELOOPBACK       11
  612 /*#define ICMPV6CTL_ND6_PROXYALL        12      obsoleted, do not reuse here */
  613 #define ICMPV6CTL_NODEINFO      13
  614 #define ICMPV6CTL_ERRPPSLIMIT   14      /* ICMPv6 error pps limitation */
  615 #define ICMPV6CTL_ND6_MAXNUDHINT        15
  616 #define ICMPV6CTL_MTUDISC_HIWAT 16
  617 #define ICMPV6CTL_MTUDISC_LOWAT 17
  618 #define ICMPV6CTL_ND6_DEBUG     18
  619 #define ICMPV6CTL_ND6_DRLIST    19
  620 #define ICMPV6CTL_ND6_PRLIST    20
  621 #define ICMPV6CTL_MAXID         21
  622 
  623 #define RTF_PROBEMTU    RTF_PROTO1
  624 
  625 #ifdef _KERNEL
  626 # ifdef __STDC__
  627 struct  rtentry;
  628 struct  rttimer;
  629 struct  in6_multi;
  630 # endif
  631 void    icmp6_init(void);
  632 void    icmp6_paramerror(struct mbuf *, int);
  633 void    icmp6_error(struct mbuf *, int, int, int);
  634 int     icmp6_input(struct mbuf **, int *, int);
  635 void    icmp6_fasttimo(void);
  636 void    icmp6_reflect(struct mbuf *, size_t);
  637 void    icmp6_prepare(struct mbuf *);
  638 void    icmp6_redirect_input(struct mbuf *, int);
  639 void    icmp6_redirect_output(struct mbuf *, struct rtentry *);
  640 
  641 struct  ip6ctlparam;
  642 void    icmp6_mtudisc_update(struct ip6ctlparam *, int);
  643 
  644 /* XXX: is this the right place for these macros? */
  645 #define icmp6_ifstat_inc(ifp, tag) \
  646 do {                                                            \
  647         if (ifp)                                                \
  648                 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
  649 } while (/*CONSTCOND*/ 0)
  650 
  651 #define icmp6_ifoutstat_inc(ifp, type, code) \
  652 do { \
  653                 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
  654                 if (type < ICMP6_INFOMSG_MASK) \
  655                         icmp6_ifstat_inc(ifp, ifs6_out_error); \
  656                 switch (type) { \
  657                  case ICMP6_DST_UNREACH: \
  658                          icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
  659                          if (code == ICMP6_DST_UNREACH_ADMIN) \
  660                                  icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
  661                          break; \
  662                  case ICMP6_PACKET_TOO_BIG: \
  663                          icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
  664                          break; \
  665                  case ICMP6_TIME_EXCEEDED: \
  666                          icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
  667                          break; \
  668                  case ICMP6_PARAM_PROB: \
  669                          icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
  670                          break; \
  671                  case ICMP6_ECHO_REQUEST: \
  672                          icmp6_ifstat_inc(ifp, ifs6_out_echo); \
  673                          break; \
  674                  case ICMP6_ECHO_REPLY: \
  675                          icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
  676                          break; \
  677                  case MLD_LISTENER_QUERY: \
  678                          icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
  679                          break; \
  680                  case MLD_LISTENER_REPORT: \
  681                          icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
  682                          break; \
  683                  case MLD_LISTENER_DONE: \
  684                          icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
  685                          break; \
  686                  case ND_ROUTER_SOLICIT: \
  687                          icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
  688                          break; \
  689                  case ND_ROUTER_ADVERT: \
  690                          icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
  691                          break; \
  692                  case ND_NEIGHBOR_SOLICIT: \
  693                          icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
  694                          break; \
  695                  case ND_NEIGHBOR_ADVERT: \
  696                          icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
  697                          break; \
  698                  case ND_REDIRECT: \
  699                          icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
  700                          break; \
  701                 } \
  702 } while (/*CONSTCOND*/ 0)
  703 
  704 extern int      icmp6_rediraccept;      /* accept/process redirects */
  705 extern int      icmp6_redirtimeout;     /* cache time for redirect routes */
  706 #endif /* _KERNEL */
  707 
  708 #endif /* not _NETINET_ICMP6_H_ */

Cache object: b5aca823521079e7c3f8584bde7d40fc


[ 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.