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 /*      $NetBSD: icmp6.h,v 1.35 2006/03/07 18:15:28 wiz Exp $   */
    2 /*      $KAME: icmp6.h,v 1.84 2003/04/23 10:26:51 itojun Exp $  */
    3 
    4 
    5 /*
    6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. Neither the name of the project nor the names of its contributors
   18  *    may be used to endorse or promote products derived from this software
   19  *    without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  */
   33 
   34 /*
   35  * Copyright (c) 1982, 1986, 1993
   36  *      The Regents of the University of California.  All rights reserved.
   37  *
   38  * Redistribution and use in source and binary forms, with or without
   39  * modification, are permitted provided that the following conditions
   40  * are met:
   41  * 1. Redistributions of source code must retain the above copyright
   42  *    notice, this list of conditions and the following disclaimer.
   43  * 2. Redistributions in binary form must reproduce the above copyright
   44  *    notice, this list of conditions and the following disclaimer in the
   45  *    documentation and/or other materials provided with the distribution.
   46  * 3. Neither the name of the University nor the names of its contributors
   47  *    may be used to endorse or promote products derived from this software
   48  *    without specific prior written permission.
   49  *
   50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   60  * SUCH DAMAGE.
   61  *
   62  *      @(#)ip_icmp.h   8.1 (Berkeley) 6/10/93
   63  */
   64 
   65 #ifndef _NETINET_ICMP6_H_
   66 #define _NETINET_ICMP6_H_
   67 
   68 #define ICMPV6_PLD_MAXLEN       1232    /* IPV6_MMTU - sizeof(struct ip6_hdr)
   69                                            - sizeof(struct icmp6_hdr) */
   70 
   71 struct icmp6_hdr {
   72         u_int8_t        icmp6_type;     /* type field */
   73         u_int8_t        icmp6_code;     /* code field */
   74         u_int16_t       icmp6_cksum;    /* checksum field */
   75         union {
   76                 u_int32_t       icmp6_un_data32[1]; /* type-specific field */
   77                 u_int16_t       icmp6_un_data16[2]; /* type-specific field */
   78                 u_int8_t        icmp6_un_data8[4];  /* type-specific field */
   79         } icmp6_dataun;
   80 } __attribute__((__packed__));
   81 
   82 #define icmp6_data32    icmp6_dataun.icmp6_un_data32
   83 #define icmp6_data16    icmp6_dataun.icmp6_un_data16
   84 #define icmp6_data8     icmp6_dataun.icmp6_un_data8
   85 #define icmp6_pptr      icmp6_data32[0]         /* parameter prob */
   86 #define icmp6_mtu       icmp6_data32[0]         /* packet too big */
   87 #define icmp6_id        icmp6_data16[0]         /* echo request/reply */
   88 #define icmp6_seq       icmp6_data16[1]         /* echo request/reply */
   89 #define icmp6_maxdelay  icmp6_data16[0]         /* mcast group membership */
   90 
   91 #define ICMP6_DST_UNREACH               1       /* dest unreachable, codes: */
   92 #define ICMP6_PACKET_TOO_BIG            2       /* packet too big */
   93 #define ICMP6_TIME_EXCEEDED             3       /* time exceeded, code: */
   94 #define ICMP6_PARAM_PROB                4       /* ip6 header bad */
   95 
   96 #define ICMP6_ECHO_REQUEST              128     /* echo service */
   97 #define ICMP6_ECHO_REPLY                129     /* echo reply */
   98 #define MLD_LISTENER_QUERY              130     /* multicast listener query */
   99 #define MLD_LISTENER_REPORT             131     /* multicast listener report */
  100 #define MLD_LISTENER_DONE               132     /* multicast listener done */
  101 
  102 /* RFC2292 decls */
  103 #define ICMP6_MEMBERSHIP_QUERY          130     /* group membership query */
  104 #define ICMP6_MEMBERSHIP_REPORT         131     /* group membership report */
  105 #define ICMP6_MEMBERSHIP_REDUCTION      132     /* group membership termination */
  106 
  107 #ifndef _KERNEL
  108 /* the followings are for backward compatibility to old KAME apps. */
  109 #define MLD6_LISTENER_QUERY     MLD_LISTENER_QUERY
  110 #define MLD6_LISTENER_REPORT    MLD_LISTENER_REPORT
  111 #define MLD6_LISTENER_DONE      MLD_LISTENER_DONE
  112 #endif
  113 
  114 #define ND_ROUTER_SOLICIT               133     /* router solicitation */
  115 #define ND_ROUTER_ADVERT                134     /* router advertisement */
  116 #define ND_NEIGHBOR_SOLICIT             135     /* neighbor solicitation */
  117 #define ND_NEIGHBOR_ADVERT              136     /* neighbor advertisement */
  118 #define ND_REDIRECT                     137     /* redirect */
  119 
  120 #define ICMP6_ROUTER_RENUMBERING        138     /* router renumbering */
  121 
  122 #define ICMP6_WRUREQUEST                139     /* who are you request */
  123 #define ICMP6_WRUREPLY                  140     /* who are you reply */
  124 #define ICMP6_FQDN_QUERY                139     /* FQDN query */
  125 #define ICMP6_FQDN_REPLY                140     /* FQDN reply */
  126 #define ICMP6_NI_QUERY                  139     /* node information request */
  127 #define ICMP6_NI_REPLY                  140     /* node information reply */
  128 
  129 /* The definitions below are experimental. TBA */
  130 #define MLD_MTRACE_RESP                 200     /* mtrace response(to sender) */
  131 #define MLD_MTRACE                      201     /* mtrace messages */
  132 
  133 #ifndef _KERNEL
  134 /* the followings are for backward compatibility to old KAME apps. */
  135 #define MLD6_MTRACE_RESP        MLD_MTRACE_RESP
  136 #define MLD6_MTRACE             MLD_MTRACE
  137 #endif
  138 
  139 #define ICMP6_MAXTYPE                   201
  140 
  141 #define ICMP6_DST_UNREACH_NOROUTE       0       /* no route to destination */
  142 #define ICMP6_DST_UNREACH_ADMIN         1       /* administratively prohibited */
  143 #define ICMP6_DST_UNREACH_NOTNEIGHBOR   2       /* not a neighbor(obsolete) */
  144 #define ICMP6_DST_UNREACH_BEYONDSCOPE   2       /* beyond scope of source address */
  145 #define ICMP6_DST_UNREACH_ADDR          3       /* address unreachable */
  146 #define ICMP6_DST_UNREACH_NOPORT        4       /* port unreachable */
  147 
  148 #define ICMP6_TIME_EXCEED_TRANSIT       0       /* ttl==0 in transit */
  149 #define ICMP6_TIME_EXCEED_REASSEMBLY    1       /* ttl==0 in reass */
  150 
  151 #define ICMP6_PARAMPROB_HEADER          0       /* erroneous header field */
  152 #define ICMP6_PARAMPROB_NEXTHEADER      1       /* unrecognized next header */
  153 #define ICMP6_PARAMPROB_OPTION          2       /* unrecognized option */
  154 
  155 #define ICMP6_INFOMSG_MASK              0x80    /* all informational messages */
  156 
  157 #define ICMP6_NI_SUBJ_IPV6      0       /* Query Subject is an IPv6 address */
  158 #define ICMP6_NI_SUBJ_FQDN      1       /* Query Subject is a Domain name */
  159 #define ICMP6_NI_SUBJ_IPV4      2       /* Query Subject is an IPv4 address */
  160 
  161 #define ICMP6_NI_SUCCESS        0       /* node information successful reply */
  162 #define ICMP6_NI_REFUSED        1       /* node information request is refused */
  163 #define ICMP6_NI_UNKNOWN        2       /* unknown Qtype */
  164 
  165 #define ICMP6_ROUTER_RENUMBERING_COMMAND  0     /* rr command */
  166 #define ICMP6_ROUTER_RENUMBERING_RESULT   1     /* rr result */
  167 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255     /* rr seq num reset */
  168 
  169 /* Used in kernel only */
  170 #define ND_REDIRECT_ONLINK      0       /* redirect to an on-link node */
  171 #define ND_REDIRECT_ROUTER      1       /* redirect to a better router */
  172 
  173 /*
  174  * Multicast Listener Discovery
  175  */
  176 struct mld_hdr {
  177         struct icmp6_hdr        mld_icmp6_hdr;
  178         struct in6_addr         mld_addr; /* multicast address */
  179 } __attribute__((__packed__));
  180 
  181 /* definitions to provide backward compatibility to old KAME applications */
  182 #ifndef _KERNEL
  183 #define mld6_hdr        mld_hdr
  184 #define mld6_type       mld_type
  185 #define mld6_code       mld_code
  186 #define mld6_cksum      mld_cksum
  187 #define mld6_maxdelay   mld_maxdelay
  188 #define mld6_reserved   mld_reserved
  189 #define mld6_addr       mld_addr
  190 #endif
  191 
  192 /* shortcut macro definitions */
  193 #define mld_type        mld_icmp6_hdr.icmp6_type
  194 #define mld_code        mld_icmp6_hdr.icmp6_code
  195 #define mld_cksum       mld_icmp6_hdr.icmp6_cksum
  196 #define mld_maxdelay    mld_icmp6_hdr.icmp6_data16[0]
  197 #define mld_reserved    mld_icmp6_hdr.icmp6_data16[1]
  198 
  199 #define MLD_MINLEN                      24
  200 
  201 /*
  202  * Neighbor Discovery
  203  */
  204 
  205 struct nd_router_solicit {      /* router solicitation */
  206         struct icmp6_hdr        nd_rs_hdr;
  207         /* could be followed by options */
  208 } __attribute__((__packed__));
  209 
  210 #define nd_rs_type      nd_rs_hdr.icmp6_type
  211 #define nd_rs_code      nd_rs_hdr.icmp6_code
  212 #define nd_rs_cksum     nd_rs_hdr.icmp6_cksum
  213 #define nd_rs_reserved  nd_rs_hdr.icmp6_data32[0]
  214 
  215 struct nd_router_advert {       /* router advertisement */
  216         struct icmp6_hdr        nd_ra_hdr;
  217         u_int32_t               nd_ra_reachable;        /* reachable time */
  218         u_int32_t               nd_ra_retransmit;       /* retransmit timer */
  219         /* could be followed by options */
  220 } __attribute__((__packed__));
  221 
  222 #define nd_ra_type              nd_ra_hdr.icmp6_type
  223 #define nd_ra_code              nd_ra_hdr.icmp6_code
  224 #define nd_ra_cksum             nd_ra_hdr.icmp6_cksum
  225 #define nd_ra_curhoplimit       nd_ra_hdr.icmp6_data8[0]
  226 #define nd_ra_flags_reserved    nd_ra_hdr.icmp6_data8[1]
  227 #define ND_RA_FLAG_MANAGED      0x80
  228 #define ND_RA_FLAG_OTHER        0x40
  229 #define ND_RA_FLAG_HOME_AGENT   0x20
  230 
  231 /*
  232  * Router preference values based on RFC4199.
  233  */
  234 #define ND_RA_FLAG_RTPREF_MASK  0x18 /* 00011000 */
  235 
  236 #define ND_RA_FLAG_RTPREF_HIGH  0x08 /* 00001000 */
  237 #define ND_RA_FLAG_RTPREF_MEDIUM        0x00 /* 00000000 */
  238 #define ND_RA_FLAG_RTPREF_LOW   0x18 /* 00011000 */
  239 #define ND_RA_FLAG_RTPREF_RSV   0x10 /* 00010000 */
  240 
  241 #define nd_ra_router_lifetime   nd_ra_hdr.icmp6_data16[1]
  242 
  243 struct nd_neighbor_solicit {    /* neighbor solicitation */
  244         struct icmp6_hdr        nd_ns_hdr;
  245         struct in6_addr         nd_ns_target;   /*target address */
  246         /* could be followed by options */
  247 } __attribute__((__packed__));
  248 
  249 #define nd_ns_type              nd_ns_hdr.icmp6_type
  250 #define nd_ns_code              nd_ns_hdr.icmp6_code
  251 #define nd_ns_cksum             nd_ns_hdr.icmp6_cksum
  252 #define nd_ns_reserved          nd_ns_hdr.icmp6_data32[0]
  253 
  254 struct nd_neighbor_advert {     /* neighbor advertisement */
  255         struct icmp6_hdr        nd_na_hdr;
  256         struct in6_addr         nd_na_target;   /* target address */
  257         /* could be followed by options */
  258 } __attribute__((__packed__));
  259 
  260 #define nd_na_type              nd_na_hdr.icmp6_type
  261 #define nd_na_code              nd_na_hdr.icmp6_code
  262 #define nd_na_cksum             nd_na_hdr.icmp6_cksum
  263 #define nd_na_flags_reserved    nd_na_hdr.icmp6_data32[0]
  264 #if BYTE_ORDER == BIG_ENDIAN
  265 #define ND_NA_FLAG_ROUTER               0x80000000
  266 #define ND_NA_FLAG_SOLICITED            0x40000000
  267 #define ND_NA_FLAG_OVERRIDE             0x20000000
  268 #else
  269 #if BYTE_ORDER == LITTLE_ENDIAN
  270 #define ND_NA_FLAG_ROUTER               0x80
  271 #define ND_NA_FLAG_SOLICITED            0x40
  272 #define ND_NA_FLAG_OVERRIDE             0x20
  273 #endif
  274 #endif
  275 
  276 struct nd_redirect {            /* redirect */
  277         struct icmp6_hdr        nd_rd_hdr;
  278         struct in6_addr         nd_rd_target;   /* target address */
  279         struct in6_addr         nd_rd_dst;      /* destination address */
  280         /* could be followed by options */
  281 } __attribute__((__packed__));
  282 
  283 #define nd_rd_type              nd_rd_hdr.icmp6_type
  284 #define nd_rd_code              nd_rd_hdr.icmp6_code
  285 #define nd_rd_cksum             nd_rd_hdr.icmp6_cksum
  286 #define nd_rd_reserved          nd_rd_hdr.icmp6_data32[0]
  287 
  288 struct nd_opt_hdr {             /* Neighbor discovery option header */
  289         u_int8_t        nd_opt_type;
  290         u_int8_t        nd_opt_len;
  291         /* followed by option specific data*/
  292 } __attribute__((__packed__));
  293 
  294 #define ND_OPT_SOURCE_LINKADDR          1
  295 #define ND_OPT_TARGET_LINKADDR          2
  296 #define ND_OPT_PREFIX_INFORMATION       3
  297 #define ND_OPT_REDIRECTED_HEADER        4
  298 #define ND_OPT_MTU                      5
  299 
  300 struct nd_opt_prefix_info {     /* prefix information */
  301         u_int8_t        nd_opt_pi_type;
  302         u_int8_t        nd_opt_pi_len;
  303         u_int8_t        nd_opt_pi_prefix_len;
  304         u_int8_t        nd_opt_pi_flags_reserved;
  305         u_int32_t       nd_opt_pi_valid_time;
  306         u_int32_t       nd_opt_pi_preferred_time;
  307         u_int32_t       nd_opt_pi_reserved2;
  308         struct in6_addr nd_opt_pi_prefix;
  309 } __attribute__((__packed__));
  310 
  311 #define ND_OPT_PI_FLAG_ONLINK           0x80
  312 #define ND_OPT_PI_FLAG_AUTO             0x40
  313 
  314 struct nd_opt_rd_hdr {          /* redirected header */
  315         u_int8_t        nd_opt_rh_type;
  316         u_int8_t        nd_opt_rh_len;
  317         u_int16_t       nd_opt_rh_reserved1;
  318         u_int32_t       nd_opt_rh_reserved2;
  319         /* followed by IP header and data */
  320 } __attribute__((__packed__));
  321 
  322 struct nd_opt_mtu {             /* MTU option */
  323         u_int8_t        nd_opt_mtu_type;
  324         u_int8_t        nd_opt_mtu_len;
  325         u_int16_t       nd_opt_mtu_reserved;
  326         u_int32_t       nd_opt_mtu_mtu;
  327 } __attribute__((__packed__));
  328 
  329 /*
  330  * icmp6 namelookup
  331  */
  332 
  333 struct icmp6_namelookup {
  334         struct icmp6_hdr        icmp6_nl_hdr;
  335         u_int8_t        icmp6_nl_nonce[8];
  336         int32_t         icmp6_nl_ttl;
  337 #if 0
  338         u_int8_t        icmp6_nl_len;
  339         u_int8_t        icmp6_nl_name[3];
  340 #endif
  341         /* could be followed by options */
  342 } __attribute__((__packed__));
  343 
  344 /*
  345  * icmp6 node information
  346  */
  347 struct icmp6_nodeinfo {
  348         struct icmp6_hdr icmp6_ni_hdr;
  349         u_int8_t icmp6_ni_nonce[8];
  350         /* could be followed by reply data */
  351 } __attribute__((__packed__));
  352 
  353 #define ni_type         icmp6_ni_hdr.icmp6_type
  354 #define ni_code         icmp6_ni_hdr.icmp6_code
  355 #define ni_cksum        icmp6_ni_hdr.icmp6_cksum
  356 #define ni_qtype        icmp6_ni_hdr.icmp6_data16[0]
  357 #define ni_flags        icmp6_ni_hdr.icmp6_data16[1]
  358 
  359 #define NI_QTYPE_NOOP           0 /* NOOP  */
  360 #define NI_QTYPE_SUPTYPES       1 /* Supported Qtypes */
  361 #define NI_QTYPE_FQDN           2 /* FQDN (draft 04) */
  362 #define NI_QTYPE_DNSNAME        2 /* DNS Name */
  363 #define NI_QTYPE_NODEADDR       3 /* Node Addresses */
  364 #define NI_QTYPE_IPV4ADDR       4 /* IPv4 Addresses */
  365 
  366 #if BYTE_ORDER == BIG_ENDIAN
  367 #define NI_SUPTYPE_FLAG_COMPRESS        0x1
  368 #define NI_FQDN_FLAG_VALIDTTL           0x1
  369 #elif BYTE_ORDER == LITTLE_ENDIAN
  370 #define NI_SUPTYPE_FLAG_COMPRESS        0x0100
  371 #define NI_FQDN_FLAG_VALIDTTL           0x0100
  372 #endif
  373 
  374 #ifdef NAME_LOOKUPS_04
  375 #if BYTE_ORDER == BIG_ENDIAN
  376 #define NI_NODEADDR_FLAG_LINKLOCAL      0x1
  377 #define NI_NODEADDR_FLAG_SITELOCAL      0x2
  378 #define NI_NODEADDR_FLAG_GLOBAL         0x4
  379 #define NI_NODEADDR_FLAG_ALL            0x8
  380 #define NI_NODEADDR_FLAG_TRUNCATE       0x10
  381 #define NI_NODEADDR_FLAG_ANYCAST        0x20 /* just experimental. not in spec */
  382 #elif BYTE_ORDER == LITTLE_ENDIAN
  383 #define NI_NODEADDR_FLAG_LINKLOCAL      0x0100
  384 #define NI_NODEADDR_FLAG_SITELOCAL      0x0200
  385 #define NI_NODEADDR_FLAG_GLOBAL         0x0400
  386 #define NI_NODEADDR_FLAG_ALL            0x0800
  387 #define NI_NODEADDR_FLAG_TRUNCATE       0x1000
  388 #define NI_NODEADDR_FLAG_ANYCAST        0x2000 /* just experimental. not in spec */
  389 #endif
  390 #else  /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
  391 #if BYTE_ORDER == BIG_ENDIAN
  392 #define NI_NODEADDR_FLAG_TRUNCATE       0x1
  393 #define NI_NODEADDR_FLAG_ALL            0x2
  394 #define NI_NODEADDR_FLAG_COMPAT         0x4
  395 #define NI_NODEADDR_FLAG_LINKLOCAL      0x8
  396 #define NI_NODEADDR_FLAG_SITELOCAL      0x10
  397 #define NI_NODEADDR_FLAG_GLOBAL         0x20
  398 #define NI_NODEADDR_FLAG_ANYCAST        0x40 /* just experimental. not in spec */
  399 #elif BYTE_ORDER == LITTLE_ENDIAN
  400 #define NI_NODEADDR_FLAG_TRUNCATE       0x0100
  401 #define NI_NODEADDR_FLAG_ALL            0x0200
  402 #define NI_NODEADDR_FLAG_COMPAT         0x0400
  403 #define NI_NODEADDR_FLAG_LINKLOCAL      0x0800
  404 #define NI_NODEADDR_FLAG_SITELOCAL      0x1000
  405 #define NI_NODEADDR_FLAG_GLOBAL         0x2000
  406 #define NI_NODEADDR_FLAG_ANYCAST        0x4000 /* just experimental. not in spec */
  407 #endif
  408 #endif
  409 
  410 struct ni_reply_fqdn {
  411         u_int32_t ni_fqdn_ttl;  /* TTL */
  412         u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
  413         u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
  414 } __attribute__((__packed__));
  415 
  416 /*
  417  * Router Renumbering. as router-renum-08.txt
  418  */
  419 struct icmp6_router_renum {     /* router renumbering header */
  420         struct icmp6_hdr        rr_hdr;
  421         u_int8_t        rr_segnum;
  422         u_int8_t        rr_flags;
  423         u_int16_t       rr_maxdelay;
  424         u_int32_t       rr_reserved;
  425 } __attribute__((__packed__));
  426 
  427 #define ICMP6_RR_FLAGS_TEST             0x80
  428 #define ICMP6_RR_FLAGS_REQRESULT        0x40
  429 #define ICMP6_RR_FLAGS_FORCEAPPLY       0x20
  430 #define ICMP6_RR_FLAGS_SPECSITE         0x10
  431 #define ICMP6_RR_FLAGS_PREVDONE         0x08
  432 
  433 #define rr_type         rr_hdr.icmp6_type
  434 #define rr_code         rr_hdr.icmp6_code
  435 #define rr_cksum        rr_hdr.icmp6_cksum
  436 #define rr_seqnum       rr_hdr.icmp6_data32[0]
  437 
  438 struct rr_pco_match {           /* match prefix part */
  439         u_int8_t        rpm_code;
  440         u_int8_t        rpm_len;
  441         u_int8_t        rpm_ordinal;
  442         u_int8_t        rpm_matchlen;
  443         u_int8_t        rpm_minlen;
  444         u_int8_t        rpm_maxlen;
  445         u_int16_t       rpm_reserved;
  446         struct  in6_addr        rpm_prefix;
  447 } __attribute__((__packed__));
  448 
  449 #define RPM_PCO_ADD             1
  450 #define RPM_PCO_CHANGE          2
  451 #define RPM_PCO_SETGLOBAL       3
  452 #define RPM_PCO_MAX             4
  453 
  454 struct rr_pco_use {             /* use prefix part */
  455         u_int8_t        rpu_uselen;
  456         u_int8_t        rpu_keeplen;
  457         u_int8_t        rpu_ramask;
  458         u_int8_t        rpu_raflags;
  459         u_int32_t       rpu_vltime;
  460         u_int32_t       rpu_pltime;
  461         u_int32_t       rpu_flags;
  462         struct  in6_addr rpu_prefix;
  463 } __attribute__((__packed__));
  464 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK  0x80
  465 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO    0x40
  466 
  467 #if BYTE_ORDER == BIG_ENDIAN
  468 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     0x80000000
  469 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     0x40000000
  470 #elif BYTE_ORDER == LITTLE_ENDIAN
  471 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     0x80
  472 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     0x40
  473 #endif
  474 
  475 struct rr_result {              /* router renumbering result message */
  476         u_int16_t       rrr_flags;
  477         u_int8_t        rrr_ordinal;
  478         u_int8_t        rrr_matchedlen;
  479         u_int32_t       rrr_ifid;
  480         struct  in6_addr rrr_prefix;
  481 } __attribute__((__packed__));
  482 #if BYTE_ORDER == BIG_ENDIAN
  483 #define ICMP6_RR_RESULT_FLAGS_OOB               0x0002
  484 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         0x0001
  485 #elif BYTE_ORDER == LITTLE_ENDIAN
  486 #define ICMP6_RR_RESULT_FLAGS_OOB               0x0200
  487 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         0x0100
  488 #endif
  489 
  490 /*
  491  * icmp6 filter structures.
  492  */
  493 
  494 struct icmp6_filter {
  495         u_int32_t icmp6_filt[8];
  496 };
  497 
  498 #define ICMP6_FILTER_SETPASSALL(filterp) \
  499         (void)memset(filterp, 0xff, sizeof(struct icmp6_filter))
  500 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
  501         (void)memset(filterp, 0x00, sizeof(struct icmp6_filter))
  502 #define ICMP6_FILTER_SETPASS(type, filterp) \
  503         (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
  504 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
  505         (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
  506 #define ICMP6_FILTER_WILLPASS(type, filterp) \
  507         ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
  508 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
  509         ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
  510 
  511 /*
  512  * Variables related to this implementation
  513  * of the internet control message protocol version 6.
  514  */
  515 struct icmp6errstat {
  516         u_quad_t icp6errs_dst_unreach_noroute;
  517         u_quad_t icp6errs_dst_unreach_admin;
  518         u_quad_t icp6errs_dst_unreach_beyondscope;
  519         u_quad_t icp6errs_dst_unreach_addr;
  520         u_quad_t icp6errs_dst_unreach_noport;
  521         u_quad_t icp6errs_packet_too_big;
  522         u_quad_t icp6errs_time_exceed_transit;
  523         u_quad_t icp6errs_time_exceed_reassembly;
  524         u_quad_t icp6errs_paramprob_header;
  525         u_quad_t icp6errs_paramprob_nextheader;
  526         u_quad_t icp6errs_paramprob_option;
  527         u_quad_t icp6errs_redirect; /* we regard redirect as an error here */
  528         u_quad_t icp6errs_unknown;
  529 };
  530 
  531 struct icmp6stat {
  532 /* statistics related to icmp6 packets generated */
  533         u_quad_t icp6s_error;           /* # of calls to icmp6_error */
  534         u_quad_t icp6s_canterror;       /* no error 'cuz old was icmp */
  535         u_quad_t icp6s_toofreq;         /* no error 'cuz rate limitation */
  536         u_quad_t icp6s_outhist[256];
  537 /* statistics related to input message processed */
  538         u_quad_t icp6s_badcode;         /* icmp6_code out of range */
  539         u_quad_t icp6s_tooshort;        /* packet < sizeof(struct icmp6_hdr) */
  540         u_quad_t icp6s_checksum;        /* bad checksum */
  541         u_quad_t icp6s_badlen;          /* calculated bound mismatch */
  542         /*
  543          * number of responses: this member is inherited from netinet code, but
  544          * for netinet6 code, it is already available in icp6s_outhist[].
  545          */
  546         u_quad_t icp6s_reflect;
  547         u_quad_t icp6s_inhist[256];
  548         u_quad_t icp6s_nd_toomanyopt;   /* too many ND options */
  549         struct icmp6errstat icp6s_outerrhist;
  550 #define icp6s_odst_unreach_noroute \
  551         icp6s_outerrhist.icp6errs_dst_unreach_noroute
  552 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
  553 #define icp6s_odst_unreach_beyondscope \
  554         icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
  555 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
  556 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
  557 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
  558 #define icp6s_otime_exceed_transit \
  559         icp6s_outerrhist.icp6errs_time_exceed_transit
  560 #define icp6s_otime_exceed_reassembly \
  561         icp6s_outerrhist.icp6errs_time_exceed_reassembly
  562 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
  563 #define icp6s_oparamprob_nextheader \
  564         icp6s_outerrhist.icp6errs_paramprob_nextheader
  565 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
  566 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
  567 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
  568         u_quad_t icp6s_pmtuchg;         /* path MTU changes */
  569         u_quad_t icp6s_nd_badopt;       /* bad ND options */
  570         u_quad_t icp6s_badns;           /* bad neighbor solicitation */
  571         u_quad_t icp6s_badna;           /* bad neighbor advertisement */
  572         u_quad_t icp6s_badrs;           /* bad router advertisement */
  573         u_quad_t icp6s_badra;           /* bad router advertisement */
  574         u_quad_t icp6s_badredirect;     /* bad redirect message */
  575 };
  576 
  577 /*
  578  * Names for ICMP sysctl objects
  579  */
  580 #define ICMPV6CTL_STATS         1
  581 #define ICMPV6CTL_REDIRACCEPT   2       /* accept/process redirects */
  582 #define ICMPV6CTL_REDIRTIMEOUT  3       /* redirect cache time */
  583 #if 0   /*obsoleted*/
  584 #define ICMPV6CTL_ERRRATELIMIT  5       /* ICMPv6 error rate limitation */
  585 #endif
  586 #define ICMPV6CTL_ND6_PRUNE     6
  587 #define ICMPV6CTL_ND6_DELAY     8
  588 #define ICMPV6CTL_ND6_UMAXTRIES 9
  589 #define ICMPV6CTL_ND6_MMAXTRIES         10
  590 #define ICMPV6CTL_ND6_USELOOPBACK       11
  591 /*#define ICMPV6CTL_ND6_PROXYALL        12      obsoleted, do not reuse here */
  592 #define ICMPV6CTL_NODEINFO      13
  593 #define ICMPV6CTL_ERRPPSLIMIT   14      /* ICMPv6 error pps limitation */
  594 #define ICMPV6CTL_ND6_MAXNUDHINT        15
  595 #define ICMPV6CTL_MTUDISC_HIWAT 16
  596 #define ICMPV6CTL_MTUDISC_LOWAT 17
  597 #define ICMPV6CTL_ND6_DEBUG     18
  598 #define ICMPV6CTL_ND6_DRLIST    19
  599 #define ICMPV6CTL_ND6_PRLIST    20
  600 #define ICMPV6CTL_ND6_MAXQLEN   24
  601 #define ICMPV6CTL_MAXID         25
  602 
  603 #define ICMPV6CTL_NAMES { \
  604         { 0, 0 }, \
  605         { 0, 0 }, \
  606         { "rediraccept", CTLTYPE_INT }, \
  607         { "redirtimeout", CTLTYPE_INT }, \
  608         { 0, 0 }, \
  609         { 0, 0 }, \
  610         { "nd6_prune", CTLTYPE_INT }, \
  611         { 0, 0 }, \
  612         { "nd6_delay", CTLTYPE_INT }, \
  613         { "nd6_umaxtries", CTLTYPE_INT }, \
  614         { "nd6_mmaxtries", CTLTYPE_INT }, \
  615         { "nd6_useloopback", CTLTYPE_INT }, \
  616         { 0, 0 }, \
  617         { "nodeinfo", CTLTYPE_INT }, \
  618         { "errppslimit", CTLTYPE_INT }, \
  619         { "nd6_maxnudhint", CTLTYPE_INT }, \
  620         { "mtudisc_hiwat", CTLTYPE_INT }, \
  621         { "mtudisc_lowat", CTLTYPE_INT }, \
  622         { "nd6_debug", CTLTYPE_INT }, \
  623         { 0, 0 }, \
  624         { 0, 0 }, \
  625         { 0, 0 }, \
  626         { 0, 0 }, \
  627         { 0, 0 }, \
  628         { "nd6_maxqueuelen", CTLTYPE_INT }, \
  629 }
  630 
  631 #define RTF_PROBEMTU    RTF_PROTO1
  632 
  633 #ifdef _KERNEL
  634 struct  rtentry;
  635 struct  rttimer;
  636 struct  in6_multi;
  637 
  638 void    icmp6_init(void);
  639 void    icmp6_paramerror(struct mbuf *, int);
  640 void    icmp6_error(struct mbuf *, int, int, int);
  641 void    icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
  642 int     icmp6_input(struct mbuf **, int *, int);
  643 void    icmp6_fasttimo(void);
  644 void    icmp6_reflect(struct mbuf *, size_t);
  645 void    icmp6_prepare(struct mbuf *);
  646 void    icmp6_redirect_input(struct mbuf *, int);
  647 void    icmp6_redirect_output(struct mbuf *, struct rtentry *);
  648 int     icmp6_sysctl(int *, u_int, void *, size_t *, void *, size_t);
  649 
  650 struct  ip6ctlparam;
  651 void    icmp6_mtudisc_update(struct ip6ctlparam *, int);
  652 void    icmp6_mtudisc_callback_register(void (*)(struct in6_addr *));
  653 
  654 /* XXX: is this the right place for these macros? */
  655 #define icmp6_ifstat_inc(ifp, tag) \
  656 do {                                                            \
  657         if (ifp)                                                \
  658                 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
  659 } while (/*CONSTCOND*/ 0)
  660 
  661 #define icmp6_ifoutstat_inc(ifp, type, code) \
  662 do { \
  663                 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
  664                 switch(type) { \
  665                  case ICMP6_DST_UNREACH: \
  666                          icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
  667                          if (code == ICMP6_DST_UNREACH_ADMIN) \
  668                                  icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
  669                          break; \
  670                  case ICMP6_PACKET_TOO_BIG: \
  671                          icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
  672                          break; \
  673                  case ICMP6_TIME_EXCEEDED: \
  674                          icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
  675                          break; \
  676                  case ICMP6_PARAM_PROB: \
  677                          icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
  678                          break; \
  679                  case ICMP6_ECHO_REQUEST: \
  680                          icmp6_ifstat_inc(ifp, ifs6_out_echo); \
  681                          break; \
  682                  case ICMP6_ECHO_REPLY: \
  683                          icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
  684                          break; \
  685                  case MLD_LISTENER_QUERY: \
  686                          icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
  687                          break; \
  688                  case MLD_LISTENER_REPORT: \
  689                          icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
  690                          break; \
  691                  case MLD_LISTENER_DONE: \
  692                          icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
  693                          break; \
  694                  case ND_ROUTER_SOLICIT: \
  695                          icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
  696                          break; \
  697                  case ND_ROUTER_ADVERT: \
  698                          icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
  699                          break; \
  700                  case ND_NEIGHBOR_SOLICIT: \
  701                          icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
  702                          break; \
  703                  case ND_NEIGHBOR_ADVERT: \
  704                          icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
  705                          break; \
  706                  case ND_REDIRECT: \
  707                          icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
  708                          break; \
  709                 } \
  710 } while (/*CONSTCOND*/ 0)
  711 
  712 extern int      icmp6_rediraccept;      /* accept/process redirects */
  713 extern int      icmp6_redirtimeout;     /* cache time for redirect routes */
  714 #endif /* _KERNEL */
  715 
  716 #endif /* !_NETINET_ICMP6_H_ */

Cache object: 0cebd62c6689e41dec8f4ec440caaff4


[ 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.