headers/posix/netinet/icmp6.h

   1 /*-
   2  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   3  * 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  * 3. Neither the name of the project 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 PROJECT 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 PROJECT 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
  30 /*-
  31  * Copyright (c) 1982, 1986, 1993
  32  *      The Regents of the University of California.  All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 4. Neither the name of the University nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  *
  58  *      @(#)ip_icmp.h   8.1 (Berkeley) 6/10/93
  59  */
  60 #ifndef _NETINET_ICMP6_H_
  61 #define _NETINET_ICMP6_H_
  62
  63
  64 #include <endian.h>
  65 #include <stdint.h>
  66 #include <sys/types.h>
  67 #include <netinet6/in6.h>
  68
  69
  70 #define ICMPV6_PLD_MAXLEN       1232    /* IPV6_MMTU - sizeof(struct ip6_hdr)
  71                                            - sizeof(struct icmp6_hdr) */
  72
  73 struct icmp6_hdr {
  74         uint8_t icmp6_type;     /* type field */
  75         uint8_t icmp6_code;     /* code field */
  76         uint16_t        icmp6_cksum;    /* checksum field */
  77         union {
  78                 uint32_t        icmp6_un_data32[1]; /* type-specific field */
  79                 uint16_t        icmp6_un_data16[2]; /* type-specific field */
  80                 uint8_t         icmp6_un_data8[4];  /* type-specific field */
  81         } icmp6_dataun;
  82 } _PACKED;
  83
  84 #define icmp6_data32    icmp6_dataun.icmp6_un_data32
  85 #define icmp6_data16    icmp6_dataun.icmp6_un_data16
  86 #define icmp6_data8     icmp6_dataun.icmp6_un_data8
  87 #define icmp6_pptr      icmp6_data32[0]         /* parameter prob */
  88 #define icmp6_mtu       icmp6_data32[0]         /* packet too big */
  89 #define icmp6_id        icmp6_data16[0]         /* echo request/reply */
  90 #define icmp6_seq       icmp6_data16[1]         /* echo request/reply */
  91 #define icmp6_maxdelay  icmp6_data16[0]         /* mcast group membership */
  92
  93 #define ICMP6_DST_UNREACH               1       /* dest unreachable, codes: */
  94 #define ICMP6_PACKET_TOO_BIG    2       /* packet too big */
  95 #define ICMP6_TIME_EXCEEDED             3       /* time exceeded, code: */
  96 #define ICMP6_PARAM_PROB                4       /* ip6 header bad */
  97
  98 #define ICMP6_ECHO_REQUEST              128     /* echo service */
  99 #define ICMP6_ECHO_REPLY                129     /* echo reply */
 100 #define MLD_LISTENER_QUERY              130     /* multicast listener query */
 101 #define MLD_LISTENER_REPORT             131     /* multicast listener report */
 102 #define MLD_LISTENER_DONE               132     /* multicast listener done */
 103 #define MLD_LISTENER_REDUCTION MLD_LISTENER_DONE /* RFC3542 definition */
 104
 105 /* RFC2292 decls */
 106 #define ICMP6_MEMBERSHIP_QUERY          130     /* group membership query */
 107 #define ICMP6_MEMBERSHIP_REPORT         131     /* group membership report */
 108 #define ICMP6_MEMBERSHIP_REDUCTION      132     /* group membership termination */
 109
 110 #ifndef _KERNEL
 111 /* the followings are for backward compatibility to old KAME apps. */
 112 #define MLD6_LISTENER_QUERY     MLD_LISTENER_QUERY
 113 #define MLD6_LISTENER_REPORT    MLD_LISTENER_REPORT
 114 #define MLD6_LISTENER_DONE      MLD_LISTENER_DONE
 115 #endif
 116
 117 #define ND_ROUTER_SOLICIT               133     /* router solicitation */
 118 #define ND_ROUTER_ADVERT                134     /* router advertisement */
 119 #define ND_NEIGHBOR_SOLICIT             135     /* neighbor solicitation */
 120 #define ND_NEIGHBOR_ADVERT              136     /* neighbor advertisement */
 121 #define ND_REDIRECT                     137     /* redirect */
 122
 123 #define ICMP6_ROUTER_RENUMBERING        138     /* router renumbering */
 124
 125 #define ICMP6_WRUREQUEST                139     /* who are you request */
 126 #define ICMP6_WRUREPLY                  140     /* who are you reply */
 127 #define ICMP6_FQDN_QUERY                139     /* FQDN query */
 128 #define ICMP6_FQDN_REPLY                140     /* FQDN reply */
 129 #define ICMP6_NI_QUERY                  139     /* node information request */
 130 #define ICMP6_NI_REPLY                  140     /* node information reply */
 131 #define MLDV2_LISTENER_REPORT           143     /* RFC3810 listener report */
 132
 133 /* The definitions below are experimental. TBA */
 134 #define MLD_MTRACE_RESP                 200     /* mtrace resp (to sender) */
 135 #define MLD_MTRACE                      201     /* mtrace messages */
 136
 137 #ifndef _KERNEL
 138 #define MLD6_MTRACE_RESP        MLD_MTRACE_RESP
 139 #define MLD6_MTRACE             MLD_MTRACE
 140 #endif
 141
 142 #define ICMP6_MAXTYPE                   201
 143
 144 #define ICMP6_DST_UNREACH_NOROUTE       0       /* no route to destination */
 145 #define ICMP6_DST_UNREACH_ADMIN         1       /* administratively prohibited */
 146 #define ICMP6_DST_UNREACH_NOTNEIGHBOR   2       /* not a neighbor(obsolete) */
 147 #define ICMP6_DST_UNREACH_BEYONDSCOPE   2       /* beyond scope of source address */
 148 #define ICMP6_DST_UNREACH_ADDR          3       /* address unreachable */
 149 #define ICMP6_DST_UNREACH_NOPORT        4       /* port unreachable */
 150
 151 #define ICMP6_TIME_EXCEED_TRANSIT       0       /* ttl==0 in transit */
 152 #define ICMP6_TIME_EXCEED_REASSEMBLY    1       /* ttl==0 in reass */
 153
 154 #define ICMP6_PARAMPROB_HEADER          0       /* erroneous header field */
 155 #define ICMP6_PARAMPROB_NEXTHEADER      1       /* unrecognized next header */
 156 #define ICMP6_PARAMPROB_OPTION          2       /* unrecognized option */
 157
 158 #define ICMP6_INFOMSG_MASK              0x80    /* all informational messages */
 159
 160 #define ICMP6_NI_SUBJ_IPV6      0       /* Query Subject is an IPv6 address */
 161 #define ICMP6_NI_SUBJ_FQDN      1       /* Query Subject is a Domain name */
 162 #define ICMP6_NI_SUBJ_IPV4      2       /* Query Subject is an IPv4 address */
 163
 164 #define ICMP6_NI_SUCCESS        0       /* node information successful reply */
 165 #define ICMP6_NI_REFUSED        1       /* node information request is refused */
 166 #define ICMP6_NI_UNKNOWN        2       /* unknown Qtype */
 167
 168 #define ICMP6_ROUTER_RENUMBERING_COMMAND  0     /* rr command */
 169 #define ICMP6_ROUTER_RENUMBERING_RESULT   1     /* rr result */
 170 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255     /* rr seq num reset */
 171
 172 /* Used in kernel only */
 173 #define ND_REDIRECT_ONLINK      0       /* redirect to an on-link node */
 174 #define ND_REDIRECT_ROUTER      1       /* redirect to a better router */
 175
 176 /*
 177  * Multicast Listener Discovery
 178  */
 179 struct mld_hdr {
 180         struct icmp6_hdr        mld_icmp6_hdr;
 181         struct in6_addr         mld_addr; /* multicast address */
 182 } _PACKED;
 183
 184 /* definitions to provide backward compatibility to old KAME applications */
 185 #ifndef _KERNEL
 186 #define mld6_hdr        mld_hdr
 187 #define mld6_type       mld_type
 188 #define mld6_code       mld_code
 189 #define mld6_cksum      mld_cksum
 190 #define mld6_maxdelay   mld_maxdelay
 191 #define mld6_reserved   mld_reserved
 192 #define mld6_addr       mld_addr
 193 #endif
 194
 195 /* shortcut macro definitions */
 196 #define mld_type        mld_icmp6_hdr.icmp6_type
 197 #define mld_code        mld_icmp6_hdr.icmp6_code
 198 #define mld_cksum       mld_icmp6_hdr.icmp6_cksum
 199 #define mld_maxdelay    mld_icmp6_hdr.icmp6_data16[0]
 200 #define mld_reserved    mld_icmp6_hdr.icmp6_data16[1]
 201 #define mld_v2_reserved mld_icmp6_hdr.icmp6_data16[0]
 202 #define mld_v2_numrecs  mld_icmp6_hdr.icmp6_data16[1]
 203
 204 /*
 205  * Neighbor Discovery
 206  */
 207
 208 struct nd_router_solicit {      /* router solicitation */
 209         struct icmp6_hdr        nd_rs_hdr;
 210         /* could be followed by options */
 211 } _PACKED;
 212
 213 #define nd_rs_type      nd_rs_hdr.icmp6_type
 214 #define nd_rs_code      nd_rs_hdr.icmp6_code
 215 #define nd_rs_cksum     nd_rs_hdr.icmp6_cksum
 216 #define nd_rs_reserved  nd_rs_hdr.icmp6_data32[0]
 217
 218 struct nd_router_advert {       /* router advertisement */
 219         struct icmp6_hdr        nd_ra_hdr;
 220         uint32_t                nd_ra_reachable;        /* reachable time */
 221         uint32_t                nd_ra_retransmit;       /* retransmit timer */
 222         /* could be followed by options */
 223 } _PACKED;
 224
 225 #define nd_ra_type              nd_ra_hdr.icmp6_type
 226 #define nd_ra_code              nd_ra_hdr.icmp6_code
 227 #define nd_ra_cksum             nd_ra_hdr.icmp6_cksum
 228 #define nd_ra_curhoplimit       nd_ra_hdr.icmp6_data8[0]
 229 #define nd_ra_flags_reserved    nd_ra_hdr.icmp6_data8[1]
 230 #define ND_RA_FLAG_MANAGED      0x80
 231 #define ND_RA_FLAG_OTHER        0x40
 232 #define ND_RA_FLAG_HA           0x20
 233
 234 /*
 235  * Router preference values based on draft-draves-ipngwg-router-selection-01.
 236  * These are non-standard definitions.
 237  */
 238 #define ND_RA_FLAG_RTPREF_MASK  0x18 /* 00011000 */
 239
 240 #define ND_RA_FLAG_RTPREF_HIGH  0x08 /* 00001000 */
 241 #define ND_RA_FLAG_RTPREF_MEDIUM        0x00 /* 00000000 */
 242 #define ND_RA_FLAG_RTPREF_LOW   0x18 /* 00011000 */
 243 #define ND_RA_FLAG_RTPREF_RSV   0x10 /* 00010000 */
 244
 245 #define nd_ra_router_lifetime   nd_ra_hdr.icmp6_data16[1]
 246
 247 struct nd_neighbor_solicit {    /* neighbor solicitation */
 248         struct icmp6_hdr        nd_ns_hdr;
 249         struct in6_addr         nd_ns_target;   /*target address */
 250         /* could be followed by options */
 251 } _PACKED;
 252
 253 #define nd_ns_type              nd_ns_hdr.icmp6_type
 254 #define nd_ns_code              nd_ns_hdr.icmp6_code
 255 #define nd_ns_cksum             nd_ns_hdr.icmp6_cksum
 256 #define nd_ns_reserved          nd_ns_hdr.icmp6_data32[0]
 257
 258 struct nd_neighbor_advert {     /* neighbor advertisement */
 259         struct icmp6_hdr        nd_na_hdr;
 260         struct in6_addr         nd_na_target;   /* target address */
 261         /* could be followed by options */
 262 } _PACKED;
 263
 264 #define nd_na_type              nd_na_hdr.icmp6_type
 265 #define nd_na_code              nd_na_hdr.icmp6_code
 266 #define nd_na_cksum             nd_na_hdr.icmp6_cksum
 267 #define nd_na_flags_reserved    nd_na_hdr.icmp6_data32[0]
 268 #if BYTE_ORDER == BIG_ENDIAN
 269 #define ND_NA_FLAG_ROUTER               0x80000000
 270 #define ND_NA_FLAG_SOLICITED    0x40000000
 271 #define ND_NA_FLAG_OVERRIDE             0x20000000
 272 #else
 273 #if BYTE_ORDER == LITTLE_ENDIAN
 274 #define ND_NA_FLAG_ROUTER               0x80
 275 #define ND_NA_FLAG_SOLICITED    0x40
 276 #define ND_NA_FLAG_OVERRIDE             0x20
 277 #endif
 278 #endif
 279
 280 struct nd_redirect {            /* redirect */
 281         struct icmp6_hdr        nd_rd_hdr;
 282         struct in6_addr         nd_rd_target;   /* target address */
 283         struct in6_addr         nd_rd_dst;      /* destination address */
 284         /* could be followed by options */
 285 } _PACKED;
 286
 287 #define nd_rd_type              nd_rd_hdr.icmp6_type
 288 #define nd_rd_code              nd_rd_hdr.icmp6_code
 289 #define nd_rd_cksum             nd_rd_hdr.icmp6_cksum
 290 #define nd_rd_reserved          nd_rd_hdr.icmp6_data32[0]
 291
 292 struct nd_opt_hdr {             /* Neighbor discovery option header */
 293         uint8_t nd_opt_type;
 294         uint8_t nd_opt_len;
 295         /* followed by option specific data*/
 296 } _PACKED;
 297
 298 #define ND_OPT_SOURCE_LINKADDR          1
 299 #define ND_OPT_TARGET_LINKADDR          2
 300 #define ND_OPT_PREFIX_INFORMATION       3
 301 #define ND_OPT_REDIRECTED_HEADER        4
 302 #define ND_OPT_MTU                      5
 303
 304 #define ND_OPT_ROUTE_INFO               200     /* draft-ietf-ipngwg-router-preference, not officially assigned yet */
 305
 306 struct nd_opt_prefix_info {     /* prefix information */
 307         uint8_t         nd_opt_pi_type;
 308         uint8_t         nd_opt_pi_len;
 309         uint8_t         nd_opt_pi_prefix_len;
 310         uint8_t         nd_opt_pi_flags_reserved;
 311         uint32_t        nd_opt_pi_valid_time;
 312         uint32_t        nd_opt_pi_preferred_time;
 313         uint32_t        nd_opt_pi_reserved2;
 314         struct in6_addr nd_opt_pi_prefix;
 315 } _PACKED;
 316
 317 #define ND_OPT_PI_FLAG_ONLINK           0x80
 318 #define ND_OPT_PI_FLAG_AUTO                     0x40
 319
 320 struct nd_opt_rd_hdr {          /* redirected header */
 321         uint8_t         nd_opt_rh_type;
 322         uint8_t         nd_opt_rh_len;
 323         uint16_t        nd_opt_rh_reserved1;
 324         uint32_t        nd_opt_rh_reserved2;
 325         /* followed by IP header and data */
 326 } _PACKED;
 327
 328 struct nd_opt_mtu {             /* MTU option */
 329         uint8_t         nd_opt_mtu_type;
 330         uint8_t         nd_opt_mtu_len;
 331         uint16_t        nd_opt_mtu_reserved;
 332         uint32_t        nd_opt_mtu_mtu;
 333 } _PACKED;
 334
 335 struct nd_opt_route_info {      /* route info */
 336         uint8_t         nd_opt_rti_type;
 337         uint8_t         nd_opt_rti_len;
 338         uint8_t         nd_opt_rti_prefixlen;
 339         uint8_t         nd_opt_rti_flags;
 340         uint32_t        nd_opt_rti_lifetime;
 341         /* prefix follows */
 342 } _PACKED;
 343
 344 /*
 345  * icmp6 namelookup
 346  */
 347
 348 struct icmp6_namelookup {
 349         struct icmp6_hdr        icmp6_nl_hdr;
 350         uint8_t         icmp6_nl_nonce[8];
 351         int32_t         icmp6_nl_ttl;
 352 #if 0
 353         uint8_t         icmp6_nl_len;
 354         uint8_t         icmp6_nl_name[3];
 355 #endif
 356         /* could be followed by options */
 357 } _PACKED;
 358
 359 /*
 360  * icmp6 node information
 361  */
 362 struct icmp6_nodeinfo {
 363         struct icmp6_hdr icmp6_ni_hdr;
 364         uint8_t icmp6_ni_nonce[8];
 365         /* could be followed by reply data */
 366 } _PACKED;
 367
 368 #define ni_type         icmp6_ni_hdr.icmp6_type
 369 #define ni_code         icmp6_ni_hdr.icmp6_code
 370 #define ni_cksum        icmp6_ni_hdr.icmp6_cksum
 371 #define ni_qtype        icmp6_ni_hdr.icmp6_data16[0]
 372 #define ni_flags        icmp6_ni_hdr.icmp6_data16[1]
 373
 374 #define NI_QTYPE_NOOP           0 /* NOOP  */
 375 #define NI_QTYPE_SUPTYPES       1 /* Supported Qtypes */
 376 #define NI_QTYPE_FQDN           2 /* FQDN (draft 04) */
 377 #define NI_QTYPE_DNSNAME        2 /* DNS Name */
 378 #define NI_QTYPE_NODEADDR       3 /* Node Addresses */
 379 #define NI_QTYPE_IPV4ADDR       4 /* IPv4 Addresses */
 380
 381 #if BYTE_ORDER == BIG_ENDIAN
 382 #define NI_SUPTYPE_FLAG_COMPRESS        0x1
 383 #define NI_FQDN_FLAG_VALIDTTL           0x1
 384 #elif BYTE_ORDER == LITTLE_ENDIAN
 385 #define NI_SUPTYPE_FLAG_COMPRESS        0x0100
 386 #define NI_FQDN_FLAG_VALIDTTL           0x0100
 387 #endif
 388
 389 #ifdef NAME_LOOKUPS_04
 390 #if BYTE_ORDER == BIG_ENDIAN
 391 #define NI_NODEADDR_FLAG_LINKLOCAL      0x1
 392 #define NI_NODEADDR_FLAG_SITELOCAL      0x2
 393 #define NI_NODEADDR_FLAG_GLOBAL         0x4
 394 #define NI_NODEADDR_FLAG_ALL            0x8
 395 #define NI_NODEADDR_FLAG_TRUNCATE       0x10
 396 #define NI_NODEADDR_FLAG_ANYCAST        0x20 /* just experimental. not in spec */
 397 #elif BYTE_ORDER == LITTLE_ENDIAN
 398 #define NI_NODEADDR_FLAG_LINKLOCAL      0x0100
 399 #define NI_NODEADDR_FLAG_SITELOCAL      0x0200
 400 #define NI_NODEADDR_FLAG_GLOBAL         0x0400
 401 #define NI_NODEADDR_FLAG_ALL            0x0800
 402 #define NI_NODEADDR_FLAG_TRUNCATE       0x1000
 403 #define NI_NODEADDR_FLAG_ANYCAST        0x2000 /* just experimental. not in spec */
 404 #endif
 405 #else  /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
 406 #if BYTE_ORDER == BIG_ENDIAN
 407 #define NI_NODEADDR_FLAG_TRUNCATE       0x1
 408 #define NI_NODEADDR_FLAG_ALL            0x2
 409 #define NI_NODEADDR_FLAG_COMPAT         0x4
 410 #define NI_NODEADDR_FLAG_LINKLOCAL      0x8
 411 #define NI_NODEADDR_FLAG_SITELOCAL      0x10
 412 #define NI_NODEADDR_FLAG_GLOBAL         0x20
 413 #define NI_NODEADDR_FLAG_ANYCAST        0x40 /* just experimental. not in spec */
 414 #elif BYTE_ORDER == LITTLE_ENDIAN
 415 #define NI_NODEADDR_FLAG_TRUNCATE       0x0100
 416 #define NI_NODEADDR_FLAG_ALL            0x0200
 417 #define NI_NODEADDR_FLAG_COMPAT         0x0400
 418 #define NI_NODEADDR_FLAG_LINKLOCAL      0x0800
 419 #define NI_NODEADDR_FLAG_SITELOCAL      0x1000
 420 #define NI_NODEADDR_FLAG_GLOBAL         0x2000
 421 #define NI_NODEADDR_FLAG_ANYCAST        0x4000 /* just experimental. not in spec */
 422 #endif
 423 #endif
 424
 425 struct ni_reply_fqdn {
 426         uint32_t ni_fqdn_ttl;   /* TTL */
 427         uint8_t ni_fqdn_namelen; /* length in octets of the FQDN */
 428         uint8_t ni_fqdn_name[3]; /* XXX: alignment */
 429 } _PACKED;
 430
 431 /*
 432  * Router Renumbering. as router-renum-08.txt
 433  */
 434 struct icmp6_router_renum {     /* router renumbering header */
 435         struct icmp6_hdr        rr_hdr;
 436         uint8_t rr_segnum;
 437         uint8_t rr_flags;
 438         uint16_t        rr_maxdelay;
 439         uint32_t        rr_reserved;
 440 } _PACKED;
 441
 442 #define ICMP6_RR_FLAGS_TEST                     0x80
 443 #define ICMP6_RR_FLAGS_REQRESULT        0x40
 444 #define ICMP6_RR_FLAGS_FORCEAPPLY       0x20
 445 #define ICMP6_RR_FLAGS_SPECSITE         0x10
 446 #define ICMP6_RR_FLAGS_PREVDONE         0x08
 447
 448 #define rr_type         rr_hdr.icmp6_type
 449 #define rr_code         rr_hdr.icmp6_code
 450 #define rr_cksum        rr_hdr.icmp6_cksum
 451 #define rr_seqnum       rr_hdr.icmp6_data32[0]
 452
 453 struct rr_pco_match {           /* match prefix part */
 454         uint8_t         rpm_code;
 455         uint8_t         rpm_len;
 456         uint8_t         rpm_ordinal;
 457         uint8_t         rpm_matchlen;
 458         uint8_t         rpm_minlen;
 459         uint8_t         rpm_maxlen;
 460         uint16_t        rpm_reserved;
 461         struct  in6_addr        rpm_prefix;
 462 } _PACKED;
 463
 464 #define RPM_PCO_ADD                     1
 465 #define RPM_PCO_CHANGE          2
 466 #define RPM_PCO_SETGLOBAL       3
 467 #define RPM_PCO_MAX                     4
 468
 469 struct rr_pco_use {             /* use prefix part */
 470         uint8_t         rpu_uselen;
 471         uint8_t         rpu_keeplen;
 472         uint8_t         rpu_ramask;
 473         uint8_t         rpu_raflags;
 474         uint32_t        rpu_vltime;
 475         uint32_t        rpu_pltime;
 476         uint32_t        rpu_flags;
 477         struct  in6_addr rpu_prefix;
 478 } _PACKED;
 479 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK  0x80
 480 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO    0x40
 481
 482 #if BYTE_ORDER == BIG_ENDIAN
 483 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     0x80000000
 484 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     0x40000000
 485 #elif BYTE_ORDER == LITTLE_ENDIAN
 486 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME     0x80
 487 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME     0x40
 488 #endif
 489
 490 struct rr_result {              /* router renumbering result message */
 491         uint16_t        rrr_flags;
 492         uint8_t         rrr_ordinal;
 493         uint8_t         rrr_matchedlen;
 494         uint32_t        rrr_ifid;
 495         struct  in6_addr rrr_prefix;
 496 } _PACKED;
 497 #if BYTE_ORDER == BIG_ENDIAN
 498 #define ICMP6_RR_RESULT_FLAGS_OOB                       0x0002
 499 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         0x0001
 500 #elif BYTE_ORDER == LITTLE_ENDIAN
 501 #define ICMP6_RR_RESULT_FLAGS_OOB                       0x0200
 502 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN         0x0100
 503 #endif
 504
 505 /*
 506  * icmp6 filter structures.
 507  */
 508
 509 struct icmp6_filter {
 510         uint32_t icmp6_filt[8];
 511 };
 512
 513
 514 #define ICMP6_FILTER_SETPASS(type, filterp) \
 515         (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
 516 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
 517         (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
 518 #define ICMP6_FILTER_WILLPASS(type, filterp) \
 519         ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
 520 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
 521         ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
 522
 523
 524 #endif /* !_NETINET_ICMP6_H_ */