contrib/tcpdump/icmp6.h

   1 /* @(#) $Header: /tcpdump/master/tcpdump/icmp6.h,v 1.18 2007-08-29 02:31:44 mcr Exp $ (LBL) */
   2 /*      NetBSD: icmp6.h,v 1.13 2000/08/03 16:30:37 itojun Exp   */
   3 /*      $KAME: icmp6.h,v 1.22 2000/08/03 15:25:16 jinmei Exp $  */
   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. All advertising materials mentioning features or use of this software
  47  *    must display the following acknowledgement:
  48  *      This product includes software developed by the University of
  49  *      California, Berkeley and its contributors.
  50  * 4. Neither the name of the University nor the names of its contributors
  51  *    may be used to endorse or promote products derived from this software
  52  *    without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  55  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  56  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  57  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  58  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  59  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  60  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  61  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  62  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  63  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  64  * SUCH DAMAGE.
  65  *
  66  *      @(#)ip_icmp.h   8.1 (Berkeley) 6/10/93
  67  */
  68
  69 #ifndef _NETINET_ICMP6_H_
  70 #define _NETINET_ICMP6_H_
  71
  72 struct icmp6_hdr {
  73         u_int8_t        icmp6_type;     /* type field */
  74         u_int8_t        icmp6_code;     /* code field */
  75         u_int16_t       icmp6_cksum;    /* checksum field */
  76         union {
  77                 u_int32_t       icmp6_un_data32[1]; /* type-specific field */
  78                 u_int16_t       icmp6_un_data16[2]; /* type-specific field */
  79                 u_int8_t        icmp6_un_data8[4];  /* type-specific field */
  80         } icmp6_dataun;
  81 };
  82
  83 #define icmp6_data32    icmp6_dataun.icmp6_un_data32
  84 #define icmp6_data16    icmp6_dataun.icmp6_un_data16
  85 #define icmp6_data8     icmp6_dataun.icmp6_un_data8
  86 #define icmp6_pptr      icmp6_data32[0]         /* parameter prob */
  87 #define icmp6_mtu       icmp6_data32[0]         /* packet too big */
  88 #define icmp6_id        icmp6_data16[0]         /* echo request/reply */
  89 #define icmp6_seq       icmp6_data16[1]         /* echo request/reply */
  90 #define icmp6_maxdelay  icmp6_data16[0]         /* mcast group membership */
  91
  92 #define ICMP6_DST_UNREACH               1       /* dest unreachable, codes: */
  93 #define ICMP6_PACKET_TOO_BIG            2       /* packet too big */
  94 #define ICMP6_TIME_EXCEEDED             3       /* time exceeded, code: */
  95 #define ICMP6_PARAM_PROB                4       /* ip6 header bad */
  96
  97 #define ICMP6_ECHO_REQUEST              128     /* echo service */
  98 #define ICMP6_ECHO_REPLY                129     /* echo reply */
  99 #define ICMP6_MEMBERSHIP_QUERY          130     /* group membership query */
 100 #define MLD6_LISTENER_QUERY             130     /* multicast listener query */
 101 #define ICMP6_MEMBERSHIP_REPORT         131     /* group membership report */
 102 #define MLD6_LISTENER_REPORT            131     /* multicast listener report */
 103 #define ICMP6_MEMBERSHIP_REDUCTION      132     /* group membership termination */
 104 #define MLD6_LISTENER_DONE              132     /* multicast listener done */
 105
 106 #define ND_ROUTER_SOLICIT               133     /* router solicitation */
 107 #define ND_ROUTER_ADVERT                134     /* router advertisement */
 108 #define ND_NEIGHBOR_SOLICIT             135     /* neighbor solicitation */
 109 #define ND_NEIGHBOR_ADVERT              136     /* neighbor advertisement */
 110 #define ND_REDIRECT                     137     /* redirect */
 111
 112 #define ICMP6_ROUTER_RENUMBERING        138     /* router renumbering */
 113
 114 #define ICMP6_WRUREQUEST                139     /* who are you request */
 115 #define ICMP6_WRUREPLY                  140     /* who are you reply */
 116 #define ICMP6_FQDN_QUERY                139     /* FQDN query */
 117 #define ICMP6_FQDN_REPLY                140     /* FQDN reply */
 118 #define ICMP6_NI_QUERY                  139     /* node information request */
 119 #define ICMP6_NI_REPLY                  140     /* node information reply */
 120 #define IND_SOLICIT                     141     /* inverse neighbor solicitation */
 121 #define IND_ADVERT                      142     /* inverse neighbor advertisement */
 122
 123 #define ICMP6_V2_MEMBERSHIP_REPORT      143     /* v2 membership report */
 124 #define MLDV2_LISTENER_REPORT           143     /* v2 multicast listener report */
 125 #define ICMP6_HADISCOV_REQUEST          144
 126 #define ICMP6_HADISCOV_REPLY            145
 127 #define ICMP6_MOBILEPREFIX_SOLICIT      146
 128 #define ICMP6_MOBILEPREFIX_ADVERT       147
 129
 130 #define MLD6_MTRACE_RESP                200     /* mtrace response(to sender) */
 131 #define MLD6_MTRACE                     201     /* mtrace messages */
 132
 133 #define ICMP6_MAXTYPE                   201
 134
 135 #define ICMP6_DST_UNREACH_NOROUTE       0       /* no route to destination */
 136 #define ICMP6_DST_UNREACH_ADMIN         1       /* administratively prohibited */
 137 #define ICMP6_DST_UNREACH_NOTNEIGHBOR   2       /* not a neighbor(obsolete) */
 138 #define ICMP6_DST_UNREACH_BEYONDSCOPE   2       /* beyond scope of source address */
 139 #define ICMP6_DST_UNREACH_ADDR          3       /* address unreachable */
 140 #define ICMP6_DST_UNREACH_NOPORT        4       /* port unreachable */
 141
 142 #define ICMP6_TIME_EXCEED_TRANSIT       0       /* ttl==0 in transit */
 143 #define ICMP6_TIME_EXCEED_REASSEMBLY    1       /* ttl==0 in reass */
 144
 145 #define ICMP6_PARAMPROB_HEADER          0       /* erroneous header field */
 146 #define ICMP6_PARAMPROB_NEXTHEADER      1       /* unrecognized next header */
 147 #define ICMP6_PARAMPROB_OPTION          2       /* unrecognized option */
 148
 149 #define ICMP6_INFOMSG_MASK              0x80    /* all informational messages */
 150
 151 #define ICMP6_NI_SUBJ_IPV6      0       /* Query Subject is an IPv6 address */
 152 #define ICMP6_NI_SUBJ_FQDN      1       /* Query Subject is a Domain name */
 153 #define ICMP6_NI_SUBJ_IPV4      2       /* Query Subject is an IPv4 address */
 154
 155 #define ICMP6_NI_SUCCESS        0       /* node information successful reply */
 156 #define ICMP6_NI_REFUSED        1       /* node information request is refused */
 157 #define ICMP6_NI_UNKNOWN        2       /* unknown Qtype */
 158
 159 #define ICMP6_ROUTER_RENUMBERING_COMMAND  0     /* rr command */
 160 #define ICMP6_ROUTER_RENUMBERING_RESULT   1     /* rr result */
 161 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255     /* rr seq num reset */
 162
 163 /* Used in kernel only */
 164 #define ND_REDIRECT_ONLINK      0       /* redirect to an on-link node */
 165 #define ND_REDIRECT_ROUTER      1       /* redirect to a better router */
 166
 167 /*
 168  * Multicast Listener Discovery
 169  */
 170 struct mld6_hdr {
 171         struct icmp6_hdr        mld6_hdr;
 172         struct in6_addr         mld6_addr; /* multicast address */
 173 };
 174
 175 #define mld6_type       mld6_hdr.icmp6_type
 176 #define mld6_code       mld6_hdr.icmp6_code
 177 #define mld6_cksum      mld6_hdr.icmp6_cksum
 178 #define mld6_maxdelay   mld6_hdr.icmp6_data16[0]
 179 #define mld6_reserved   mld6_hdr.icmp6_data16[1]
 180
 181 #define MLD_MINLEN      24
 182 #define MLDV2_MINLEN    28
 183
 184 /*
 185  * Neighbor Discovery
 186  */
 187
 188 struct nd_router_solicit {      /* router solicitation */
 189         struct icmp6_hdr        nd_rs_hdr;
 190         /* could be followed by options */
 191 };
 192
 193 #define nd_rs_type      nd_rs_hdr.icmp6_type
 194 #define nd_rs_code      nd_rs_hdr.icmp6_code
 195 #define nd_rs_cksum     nd_rs_hdr.icmp6_cksum
 196 #define nd_rs_reserved  nd_rs_hdr.icmp6_data32[0]
 197
 198 struct nd_router_advert {       /* router advertisement */
 199         struct icmp6_hdr        nd_ra_hdr;
 200         u_int32_t               nd_ra_reachable;        /* reachable time */
 201         u_int32_t               nd_ra_retransmit;       /* retransmit timer */
 202         /* could be followed by options */
 203 };
 204
 205 #define nd_ra_type              nd_ra_hdr.icmp6_type
 206 #define nd_ra_code              nd_ra_hdr.icmp6_code
 207 #define nd_ra_cksum             nd_ra_hdr.icmp6_cksum
 208 #define nd_ra_curhoplimit       nd_ra_hdr.icmp6_data8[0]
 209 #define nd_ra_flags_reserved    nd_ra_hdr.icmp6_data8[1]
 210 #define ND_RA_FLAG_MANAGED      0x80
 211 #define ND_RA_FLAG_OTHER        0x40
 212 #define ND_RA_FLAG_HOME_AGENT   0x20
 213
 214 /*
 215  * Router preference values based on draft-draves-ipngwg-router-selection-01.
 216  * These are non-standard definitions.
 217  */
 218 #define ND_RA_FLAG_RTPREF_MASK  0x18 /* 00011000 */
 219
 220 #define ND_RA_FLAG_RTPREF_HIGH  0x08 /* 00001000 */
 221 #define ND_RA_FLAG_RTPREF_MEDIUM        0x00 /* 00000000 */
 222 #define ND_RA_FLAG_RTPREF_LOW   0x18 /* 00011000 */
 223 #define ND_RA_FLAG_RTPREF_RSV   0x10 /* 00010000 */
 224
 225 #define nd_ra_router_lifetime   nd_ra_hdr.icmp6_data16[1]
 226
 227 struct nd_neighbor_solicit {    /* neighbor solicitation */
 228         struct icmp6_hdr        nd_ns_hdr;
 229         struct in6_addr         nd_ns_target;   /*target address */
 230         /* could be followed by options */
 231 };
 232
 233 #define nd_ns_type              nd_ns_hdr.icmp6_type
 234 #define nd_ns_code              nd_ns_hdr.icmp6_code
 235 #define nd_ns_cksum             nd_ns_hdr.icmp6_cksum
 236 #define nd_ns_reserved          nd_ns_hdr.icmp6_data32[0]
 237
 238 struct nd_neighbor_advert {     /* neighbor advertisement */
 239         struct icmp6_hdr        nd_na_hdr;
 240         struct in6_addr         nd_na_target;   /* target address */
 241         /* could be followed by options */
 242 };
 243
 244 #define nd_na_type              nd_na_hdr.icmp6_type
 245 #define nd_na_code              nd_na_hdr.icmp6_code
 246 #define nd_na_cksum             nd_na_hdr.icmp6_cksum
 247 #define nd_na_flags_reserved    nd_na_hdr.icmp6_data32[0]
 248
 249 #define ND_NA_FLAG_ROUTER               0x80000000
 250 #define ND_NA_FLAG_SOLICITED            0x40000000
 251 #define ND_NA_FLAG_OVERRIDE             0x20000000
 252
 253 struct nd_redirect {            /* redirect */
 254         struct icmp6_hdr        nd_rd_hdr;
 255         struct in6_addr         nd_rd_target;   /* target address */
 256         struct in6_addr         nd_rd_dst;      /* destination address */
 257         /* could be followed by options */
 258 };
 259
 260 #define nd_rd_type              nd_rd_hdr.icmp6_type
 261 #define nd_rd_code              nd_rd_hdr.icmp6_code
 262 #define nd_rd_cksum             nd_rd_hdr.icmp6_cksum
 263 #define nd_rd_reserved          nd_rd_hdr.icmp6_data32[0]
 264
 265 struct nd_opt_hdr {             /* Neighbor discovery option header */
 266         u_int8_t        nd_opt_type;
 267         u_int8_t        nd_opt_len;
 268         /* followed by option specific data*/
 269 };
 270
 271 #define ND_OPT_SOURCE_LINKADDR          1
 272 #define ND_OPT_TARGET_LINKADDR          2
 273 #define ND_OPT_PREFIX_INFORMATION       3
 274 #define ND_OPT_REDIRECTED_HEADER        4
 275 #define ND_OPT_MTU                      5
 276 #define ND_OPT_ADVINTERVAL              7
 277 #define ND_OPT_HOMEAGENT_INFO           8
 278 #define ND_OPT_ROUTE_INFO               9       /* draft-ietf-ipngwg-router-preference, not officially assigned yet */
 279
 280
 281 struct nd_opt_prefix_info {     /* prefix information */
 282         u_int8_t        nd_opt_pi_type;
 283         u_int8_t        nd_opt_pi_len;
 284         u_int8_t        nd_opt_pi_prefix_len;
 285         u_int8_t        nd_opt_pi_flags_reserved;
 286         u_int8_t        nd_opt_pi_valid_time[4];
 287         u_int8_t        nd_opt_pi_preferred_time[4];
 288         u_int8_t        nd_opt_pi_reserved2[4];
 289         struct in6_addr nd_opt_pi_prefix;
 290 };
 291
 292 #define ND_OPT_PI_FLAG_ONLINK           0x80
 293 #define ND_OPT_PI_FLAG_AUTO             0x40
 294 #define ND_OPT_PI_FLAG_ROUTER           0x20    /*2292bis*/
 295
 296 struct nd_opt_rd_hdr {         /* redirected header */
 297         u_int8_t        nd_opt_rh_type;
 298         u_int8_t        nd_opt_rh_len;
 299         u_int16_t       nd_opt_rh_reserved1;
 300         u_int32_t       nd_opt_rh_reserved2;
 301         /* followed by IP header and data */
 302 };
 303
 304 struct nd_opt_mtu {             /* MTU option */
 305         u_int8_t        nd_opt_mtu_type;
 306         u_int8_t        nd_opt_mtu_len;
 307         u_int16_t       nd_opt_mtu_reserved;
 308         u_int32_t       nd_opt_mtu_mtu;
 309 };
 310
 311 struct nd_opt_advinterval {     /* Advertisement interval option */
 312         u_int8_t        nd_opt_adv_type;
 313         u_int8_t        nd_opt_adv_len;
 314         u_int16_t       nd_opt_adv_reserved;
 315         u_int32_t       nd_opt_adv_interval;
 316 };
 317
 318 struct nd_opt_homeagent_info {  /* Home Agent info */
 319         u_int8_t        nd_opt_hai_type;
 320         u_int8_t        nd_opt_hai_len;
 321         u_int16_t       nd_opt_hai_reserved;
 322         int16_t         nd_opt_hai_preference;
 323         u_int16_t       nd_opt_hai_lifetime;
 324 };
 325
 326 struct nd_opt_route_info {      /* route info */
 327         u_int8_t        nd_opt_rti_type;
 328         u_int8_t        nd_opt_rti_len;
 329         u_int8_t        nd_opt_rti_prefixlen;
 330         u_int8_t        nd_opt_rti_flags;
 331         u_int32_t       nd_opt_rti_lifetime;
 332         /* prefix follows */
 333 };
 334
 335 /*
 336  * icmp6 namelookup
 337  */
 338
 339 struct icmp6_namelookup {
 340         struct icmp6_hdr        icmp6_nl_hdr;
 341         u_int8_t        icmp6_nl_nonce[8];
 342         int32_t         icmp6_nl_ttl;
 343 #if 0
 344         u_int8_t        icmp6_nl_len;
 345         u_int8_t        icmp6_nl_name[3];
 346 #endif
 347         /* could be followed by options */
 348 };
 349
 350 /*
 351  * icmp6 node information
 352  */
 353 struct icmp6_nodeinfo {
 354         struct icmp6_hdr icmp6_ni_hdr;
 355         u_int8_t icmp6_ni_nonce[8];
 356         /* could be followed by reply data */
 357 };
 358
 359 #define ni_type         icmp6_ni_hdr.icmp6_type
 360 #define ni_code         icmp6_ni_hdr.icmp6_code
 361 #define ni_cksum        icmp6_ni_hdr.icmp6_cksum
 362 #define ni_qtype        icmp6_ni_hdr.icmp6_data16[0]
 363 #define ni_flags        icmp6_ni_hdr.icmp6_data16[1]
 364
 365 #define NI_QTYPE_NOOP           0 /* NOOP  */
 366 #define NI_QTYPE_SUPTYPES       1 /* Supported Qtypes */
 367 #define NI_QTYPE_FQDN           2 /* FQDN (draft 04) */
 368 #define NI_QTYPE_DNSNAME        2 /* DNS Name */
 369 #define NI_QTYPE_NODEADDR       3 /* Node Addresses */
 370 #define NI_QTYPE_IPV4ADDR       4 /* IPv4 Addresses */
 371
 372 /* network endian */
 373 #define NI_SUPTYPE_FLAG_COMPRESS        ((u_int16_t)htons(0x1))
 374 #define NI_FQDN_FLAG_VALIDTTL           ((u_int16_t)htons(0x1))
 375
 376 /* network endian */
 377 #define NI_NODEADDR_FLAG_TRUNCATE       ((u_int16_t)htons(0x1))
 378 #define NI_NODEADDR_FLAG_ALL            ((u_int16_t)htons(0x2))
 379 #define NI_NODEADDR_FLAG_COMPAT         ((u_int16_t)htons(0x4))
 380 #define NI_NODEADDR_FLAG_LINKLOCAL      ((u_int16_t)htons(0x8))
 381 #define NI_NODEADDR_FLAG_SITELOCAL      ((u_int16_t)htons(0x10))
 382 #define NI_NODEADDR_FLAG_GLOBAL         ((u_int16_t)htons(0x20))
 383 #define NI_NODEADDR_FLAG_ANYCAST        ((u_int16_t)htons(0x40)) /* just experimental. not in spec */
 384
 385 struct ni_reply_fqdn {
 386         u_int32_t ni_fqdn_ttl;  /* TTL */
 387         u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
 388         u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
 389 };
 390
 391 /*
 392  * Router Renumbering. as router-renum-08.txt
 393  */
 394 struct icmp6_router_renum {     /* router renumbering header */
 395         struct icmp6_hdr        rr_hdr;
 396         u_int8_t        rr_segnum;
 397         u_int8_t        rr_flags;
 398         u_int16_t       rr_maxdelay;
 399         u_int32_t       rr_reserved;
 400 };
 401 #define ICMP6_RR_FLAGS_TEST             0x80
 402 #define ICMP6_RR_FLAGS_REQRESULT        0x40
 403 #define ICMP6_RR_FLAGS_FORCEAPPLY       0x20
 404 #define ICMP6_RR_FLAGS_SPECSITE         0x10
 405 #define ICMP6_RR_FLAGS_PREVDONE         0x08
 406
 407 #define rr_type         rr_hdr.icmp6_type
 408 #define rr_code         rr_hdr.icmp6_code
 409 #define rr_cksum        rr_hdr.icmp6_cksum
 410 #define rr_seqnum       rr_hdr.icmp6_data32[0]
 411
 412 struct rr_pco_match {           /* match prefix part */
 413         u_int8_t        rpm_code;
 414         u_int8_t        rpm_len;
 415         u_int8_t        rpm_ordinal;
 416         u_int8_t        rpm_matchlen;
 417         u_int8_t        rpm_minlen;
 418         u_int8_t        rpm_maxlen;
 419         u_int16_t       rpm_reserved;
 420         struct  in6_addr        rpm_prefix;
 421 };
 422
 423 #define RPM_PCO_ADD             1
 424 #define RPM_PCO_CHANGE          2
 425 #define RPM_PCO_SETGLOBAL       3
 426 #define RPM_PCO_MAX             4
 427
 428 struct rr_pco_use {             /* use prefix part */
 429         u_int8_t        rpu_uselen;
 430         u_int8_t        rpu_keeplen;
 431         u_int8_t        rpu_ramask;
 432         u_int8_t        rpu_raflags;
 433         u_int32_t       rpu_vltime;
 434         u_int32_t       rpu_pltime;
 435         u_int32_t       rpu_flags;
 436         struct  in6_addr rpu_prefix;
 437 };
 438 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK  0x80
 439 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO    0x40
 440
 441 /* network endian */
 442 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     ((u_int32_t)htonl(0x80000000))
 443 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     ((u_int32_t)htonl(0x40000000))
 444
 445 struct rr_result {              /* router renumbering result message */
 446         u_int16_t       rrr_flags;
 447         u_int8_t        rrr_ordinal;
 448         u_int8_t        rrr_matchedlen;
 449         u_int32_t       rrr_ifid;
 450         struct  in6_addr rrr_prefix;
 451 };
 452 /* network endian */
 453 #define ICMP6_RR_RESULT_FLAGS_OOB               ((u_int16_t)htons(0x0002))
 454 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         ((u_int16_t)htons(0x0001))
 455
 456 #endif /* not _NETINET_ICMP6_H_ */