Annotation of sys/netinet/icmp6.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: icmp6.h,v 1.32 2006/07/06 02:56:58 brad Exp $ */
! 2: /* $KAME: icmp6.h,v 1.84 2003/04/23 10:26:51 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: * 3. 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 advertisement */
! 115: #define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */
! 116: #define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisement */
! 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 response(to sender) */
! 130: #define MLD_MTRACE 201 /* mtrace messages */
! 131:
! 132: #ifndef _KERNEL
! 133: /* the followings are for backward compatibility to old KAME apps. */
! 134: #define MLD6_MTRACE_RESP MLD_MTRACE_RESP
! 135: #define MLD6_MTRACE MLD_MTRACE
! 136: #endif
! 137:
! 138: #define ICMP6_MAXTYPE 201
! 139:
! 140: #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
! 141: #define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
! 142: #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
! 143: #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
! 144: #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
! 145: #define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
! 146:
! 147: #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
! 148: #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
! 149:
! 150: #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
! 151: #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
! 152: #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
! 153:
! 154: #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
! 155:
! 156: #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
! 157: #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
! 158: #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
! 159:
! 160: #define ICMP6_NI_SUCCESS 0 /* node information successful reply */
! 161: #define ICMP6_NI_REFUSED 1 /* node information request is refused */
! 162: #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
! 163:
! 164: #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
! 165: #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
! 166: #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
! 167:
! 168: /* Used in kernel only */
! 169: #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
! 170: #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
! 171:
! 172: /*
! 173: * Multicast Listener Discovery
! 174: */
! 175: struct mld_hdr {
! 176: struct icmp6_hdr mld_icmp6_hdr;
! 177: struct in6_addr mld_addr; /* multicast address */
! 178: } __packed;
! 179:
! 180: /* definitions to provide backward compatibility to old KAME applications */
! 181: #ifndef _KERNEL
! 182: #define mld6_hdr mld_hdr
! 183: #define mld6_type mld_type
! 184: #define mld6_code mld_code
! 185: #define mld6_cksum mld_cksum
! 186: #define mld6_maxdelay mld_maxdelay
! 187: #define mld6_reserved mld_reserved
! 188: #define mld6_addr mld_addr
! 189: #endif
! 190:
! 191: /* shortcut macro definitions */
! 192: #define mld_type mld_icmp6_hdr.icmp6_type
! 193: #define mld_code mld_icmp6_hdr.icmp6_code
! 194: #define mld_cksum mld_icmp6_hdr.icmp6_cksum
! 195: #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
! 196: #define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
! 197:
! 198: /*
! 199: * Neighbor Discovery
! 200: */
! 201:
! 202: struct nd_router_solicit { /* router solicitation */
! 203: struct icmp6_hdr nd_rs_hdr;
! 204: /* could be followed by options */
! 205: } __packed;
! 206:
! 207: #define nd_rs_type nd_rs_hdr.icmp6_type
! 208: #define nd_rs_code nd_rs_hdr.icmp6_code
! 209: #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
! 210: #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
! 211:
! 212: struct nd_router_advert { /* router advertisement */
! 213: struct icmp6_hdr nd_ra_hdr;
! 214: u_int32_t nd_ra_reachable; /* reachable time */
! 215: u_int32_t nd_ra_retransmit; /* retransmit timer */
! 216: /* could be followed by options */
! 217: } __packed;
! 218:
! 219: #define nd_ra_type nd_ra_hdr.icmp6_type
! 220: #define nd_ra_code nd_ra_hdr.icmp6_code
! 221: #define nd_ra_cksum nd_ra_hdr.icmp6_cksum
! 222: #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
! 223: #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
! 224: #define ND_RA_FLAG_MANAGED 0x80
! 225: #define ND_RA_FLAG_OTHER 0x40
! 226: #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
! 227:
! 228: struct nd_neighbor_solicit { /* neighbor solicitation */
! 229: struct icmp6_hdr nd_ns_hdr;
! 230: struct in6_addr nd_ns_target; /*target address */
! 231: /* could be followed by options */
! 232: } __packed;
! 233:
! 234: #define nd_ns_type nd_ns_hdr.icmp6_type
! 235: #define nd_ns_code nd_ns_hdr.icmp6_code
! 236: #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
! 237: #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
! 238:
! 239: struct nd_neighbor_advert { /* neighbor advertisement */
! 240: struct icmp6_hdr nd_na_hdr;
! 241: struct in6_addr nd_na_target; /* target address */
! 242: /* could be followed by options */
! 243: } __packed;
! 244:
! 245: #define nd_na_type nd_na_hdr.icmp6_type
! 246: #define nd_na_code nd_na_hdr.icmp6_code
! 247: #define nd_na_cksum nd_na_hdr.icmp6_cksum
! 248: #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
! 249: #if _BYTE_ORDER == _BIG_ENDIAN
! 250: #define ND_NA_FLAG_ROUTER 0x80000000
! 251: #define ND_NA_FLAG_SOLICITED 0x40000000
! 252: #define ND_NA_FLAG_OVERRIDE 0x20000000
! 253: #else
! 254: #if _BYTE_ORDER == _LITTLE_ENDIAN
! 255: #define ND_NA_FLAG_ROUTER 0x80
! 256: #define ND_NA_FLAG_SOLICITED 0x40
! 257: #define ND_NA_FLAG_OVERRIDE 0x20
! 258: #endif
! 259: #endif
! 260:
! 261: struct nd_redirect { /* redirect */
! 262: struct icmp6_hdr nd_rd_hdr;
! 263: struct in6_addr nd_rd_target; /* target address */
! 264: struct in6_addr nd_rd_dst; /* destination address */
! 265: /* could be followed by options */
! 266: } __packed;
! 267:
! 268: #define nd_rd_type nd_rd_hdr.icmp6_type
! 269: #define nd_rd_code nd_rd_hdr.icmp6_code
! 270: #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
! 271: #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
! 272:
! 273: struct nd_opt_hdr { /* Neighbor discovery option header */
! 274: u_int8_t nd_opt_type;
! 275: u_int8_t nd_opt_len;
! 276: /* followed by option specific data*/
! 277: } __packed;
! 278:
! 279: #define ND_OPT_SOURCE_LINKADDR 1
! 280: #define ND_OPT_TARGET_LINKADDR 2
! 281: #define ND_OPT_PREFIX_INFORMATION 3
! 282: #define ND_OPT_REDIRECTED_HEADER 4
! 283: #define ND_OPT_MTU 5
! 284:
! 285: struct nd_opt_prefix_info { /* prefix information */
! 286: u_int8_t nd_opt_pi_type;
! 287: u_int8_t nd_opt_pi_len;
! 288: u_int8_t nd_opt_pi_prefix_len;
! 289: u_int8_t nd_opt_pi_flags_reserved;
! 290: u_int32_t nd_opt_pi_valid_time;
! 291: u_int32_t nd_opt_pi_preferred_time;
! 292: u_int32_t nd_opt_pi_reserved2;
! 293: struct in6_addr nd_opt_pi_prefix;
! 294: } __packed;
! 295:
! 296: #define ND_OPT_PI_FLAG_ONLINK 0x80
! 297: #define ND_OPT_PI_FLAG_AUTO 0x40
! 298:
! 299: struct nd_opt_rd_hdr { /* redirected header */
! 300: u_int8_t nd_opt_rh_type;
! 301: u_int8_t nd_opt_rh_len;
! 302: u_int16_t nd_opt_rh_reserved1;
! 303: u_int32_t nd_opt_rh_reserved2;
! 304: /* followed by IP header and data */
! 305: } __packed;
! 306:
! 307: struct nd_opt_mtu { /* MTU option */
! 308: u_int8_t nd_opt_mtu_type;
! 309: u_int8_t nd_opt_mtu_len;
! 310: u_int16_t nd_opt_mtu_reserved;
! 311: u_int32_t nd_opt_mtu_mtu;
! 312: } __packed;
! 313:
! 314: /*
! 315: * icmp6 namelookup
! 316: */
! 317:
! 318: struct icmp6_namelookup {
! 319: struct icmp6_hdr icmp6_nl_hdr;
! 320: u_int8_t icmp6_nl_nonce[8];
! 321: int32_t icmp6_nl_ttl;
! 322: #if 0
! 323: u_int8_t icmp6_nl_len;
! 324: u_int8_t icmp6_nl_name[3];
! 325: #endif
! 326: /* could be followed by options */
! 327: } __packed;
! 328:
! 329: /*
! 330: * icmp6 node information
! 331: */
! 332: struct icmp6_nodeinfo {
! 333: struct icmp6_hdr icmp6_ni_hdr;
! 334: u_int8_t icmp6_ni_nonce[8];
! 335: /* could be followed by reply data */
! 336: } __packed;
! 337:
! 338: #define ni_type icmp6_ni_hdr.icmp6_type
! 339: #define ni_code icmp6_ni_hdr.icmp6_code
! 340: #define ni_cksum icmp6_ni_hdr.icmp6_cksum
! 341: #define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
! 342: #define ni_flags icmp6_ni_hdr.icmp6_data16[1]
! 343:
! 344: #define NI_QTYPE_NOOP 0 /* NOOP */
! 345: #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
! 346: #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
! 347: #define NI_QTYPE_DNSNAME 2 /* DNS Name */
! 348: #define NI_QTYPE_NODEADDR 3 /* Node Addresses */
! 349: #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
! 350:
! 351: #if _BYTE_ORDER == _BIG_ENDIAN
! 352: #define NI_SUPTYPE_FLAG_COMPRESS 0x1
! 353: #define NI_FQDN_FLAG_VALIDTTL 0x1
! 354: #elif _BYTE_ORDER == _LITTLE_ENDIAN
! 355: #define NI_SUPTYPE_FLAG_COMPRESS 0x0100
! 356: #define NI_FQDN_FLAG_VALIDTTL 0x0100
! 357: #endif
! 358:
! 359: #ifdef NAME_LOOKUPS_04
! 360: #if _BYTE_ORDER == _BIG_ENDIAN
! 361: #define NI_NODEADDR_FLAG_LINKLOCAL 0x1
! 362: #define NI_NODEADDR_FLAG_SITELOCAL 0x2
! 363: #define NI_NODEADDR_FLAG_GLOBAL 0x4
! 364: #define NI_NODEADDR_FLAG_ALL 0x8
! 365: #define NI_NODEADDR_FLAG_TRUNCATE 0x10
! 366: #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
! 367: #elif _BYTE_ORDER == _LITTLE_ENDIAN
! 368: #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
! 369: #define NI_NODEADDR_FLAG_SITELOCAL 0x0200
! 370: #define NI_NODEADDR_FLAG_GLOBAL 0x0400
! 371: #define NI_NODEADDR_FLAG_ALL 0x0800
! 372: #define NI_NODEADDR_FLAG_TRUNCATE 0x1000
! 373: #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
! 374: #endif
! 375: #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
! 376: #if _BYTE_ORDER == _BIG_ENDIAN
! 377: #define NI_NODEADDR_FLAG_TRUNCATE 0x1
! 378: #define NI_NODEADDR_FLAG_ALL 0x2
! 379: #define NI_NODEADDR_FLAG_COMPAT 0x4
! 380: #define NI_NODEADDR_FLAG_LINKLOCAL 0x8
! 381: #define NI_NODEADDR_FLAG_SITELOCAL 0x10
! 382: #define NI_NODEADDR_FLAG_GLOBAL 0x20
! 383: #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
! 384: #elif _BYTE_ORDER == _LITTLE_ENDIAN
! 385: #define NI_NODEADDR_FLAG_TRUNCATE 0x0100
! 386: #define NI_NODEADDR_FLAG_ALL 0x0200
! 387: #define NI_NODEADDR_FLAG_COMPAT 0x0400
! 388: #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
! 389: #define NI_NODEADDR_FLAG_SITELOCAL 0x1000
! 390: #define NI_NODEADDR_FLAG_GLOBAL 0x2000
! 391: #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
! 392: #endif
! 393: #endif
! 394:
! 395: struct ni_reply_fqdn {
! 396: u_int32_t ni_fqdn_ttl; /* TTL */
! 397: u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
! 398: u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
! 399: } __packed;
! 400:
! 401: /*
! 402: * Router Renumbering. as router-renum-08.txt
! 403: */
! 404: struct icmp6_router_renum { /* router renumbering header */
! 405: struct icmp6_hdr rr_hdr;
! 406: u_int8_t rr_segnum;
! 407: u_int8_t rr_flags;
! 408: u_int16_t rr_maxdelay;
! 409: u_int32_t rr_reserved;
! 410: } __packed;
! 411:
! 412: #define ICMP6_RR_FLAGS_TEST 0x80
! 413: #define ICMP6_RR_FLAGS_REQRESULT 0x40
! 414: #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
! 415: #define ICMP6_RR_FLAGS_SPECSITE 0x10
! 416: #define ICMP6_RR_FLAGS_PREVDONE 0x08
! 417:
! 418: #define rr_type rr_hdr.icmp6_type
! 419: #define rr_code rr_hdr.icmp6_code
! 420: #define rr_cksum rr_hdr.icmp6_cksum
! 421: #define rr_seqnum rr_hdr.icmp6_data32[0]
! 422:
! 423: struct rr_pco_match { /* match prefix part */
! 424: u_int8_t rpm_code;
! 425: u_int8_t rpm_len;
! 426: u_int8_t rpm_ordinal;
! 427: u_int8_t rpm_matchlen;
! 428: u_int8_t rpm_minlen;
! 429: u_int8_t rpm_maxlen;
! 430: u_int16_t rpm_reserved;
! 431: struct in6_addr rpm_prefix;
! 432: } __packed;
! 433:
! 434: #define RPM_PCO_ADD 1
! 435: #define RPM_PCO_CHANGE 2
! 436: #define RPM_PCO_SETGLOBAL 3
! 437: #define RPM_PCO_MAX 4
! 438:
! 439: struct rr_pco_use { /* use prefix part */
! 440: u_int8_t rpu_uselen;
! 441: u_int8_t rpu_keeplen;
! 442: u_int8_t rpu_ramask;
! 443: u_int8_t rpu_raflags;
! 444: u_int32_t rpu_vltime;
! 445: u_int32_t rpu_pltime;
! 446: u_int32_t rpu_flags;
! 447: struct in6_addr rpu_prefix;
! 448: } __packed;
! 449: #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
! 450: #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
! 451:
! 452: #if _BYTE_ORDER == _BIG_ENDIAN
! 453: #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
! 454: #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
! 455: #elif _BYTE_ORDER == _LITTLE_ENDIAN
! 456: #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
! 457: #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
! 458: #endif
! 459:
! 460: struct rr_result { /* router renumbering result message */
! 461: u_int16_t rrr_flags;
! 462: u_int8_t rrr_ordinal;
! 463: u_int8_t rrr_matchedlen;
! 464: u_int32_t rrr_ifid;
! 465: struct in6_addr rrr_prefix;
! 466: } __packed;
! 467: #if _BYTE_ORDER == _BIG_ENDIAN
! 468: #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
! 469: #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
! 470: #elif _BYTE_ORDER == _LITTLE_ENDIAN
! 471: #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
! 472: #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
! 473: #endif
! 474:
! 475: /*
! 476: * icmp6 filter structures.
! 477: */
! 478:
! 479: struct icmp6_filter {
! 480: u_int32_t icmp6_filt[8];
! 481: };
! 482:
! 483: #ifdef _KERNEL
! 484: #define ICMP6_FILTER_SETPASSALL(filterp) \
! 485: do { \
! 486: int i; u_char *p; \
! 487: p = (u_char *)filterp; \
! 488: for (i = 0; i < sizeof(struct icmp6_filter); i++) \
! 489: p[i] = 0xff; \
! 490: } while (0)
! 491: #define ICMP6_FILTER_SETBLOCKALL(filterp) \
! 492: bzero(filterp, sizeof(struct icmp6_filter))
! 493: #else /* _KERNEL */
! 494: #define ICMP6_FILTER_SETPASSALL(filterp) \
! 495: memset(filterp, 0xff, sizeof(struct icmp6_filter))
! 496: #define ICMP6_FILTER_SETBLOCKALL(filterp) \
! 497: memset(filterp, 0x00, sizeof(struct icmp6_filter))
! 498: #endif /* _KERNEL */
! 499:
! 500: #define ICMP6_FILTER_SETPASS(type, filterp) \
! 501: (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
! 502: #define ICMP6_FILTER_SETBLOCK(type, filterp) \
! 503: (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
! 504: #define ICMP6_FILTER_WILLPASS(type, filterp) \
! 505: ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
! 506: #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
! 507: ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
! 508:
! 509: /*
! 510: * Variables related to this implementation
! 511: * of the internet control message protocol version 6.
! 512: */
! 513: struct icmp6errstat {
! 514: u_int64_t icp6errs_dst_unreach_noroute;
! 515: u_int64_t icp6errs_dst_unreach_admin;
! 516: u_int64_t icp6errs_dst_unreach_beyondscope;
! 517: u_int64_t icp6errs_dst_unreach_addr;
! 518: u_int64_t icp6errs_dst_unreach_noport;
! 519: u_int64_t icp6errs_packet_too_big;
! 520: u_int64_t icp6errs_time_exceed_transit;
! 521: u_int64_t icp6errs_time_exceed_reassembly;
! 522: u_int64_t icp6errs_paramprob_header;
! 523: u_int64_t icp6errs_paramprob_nextheader;
! 524: u_int64_t icp6errs_paramprob_option;
! 525: u_int64_t icp6errs_redirect; /* we regard redirect as an error here */
! 526: u_int64_t icp6errs_unknown;
! 527: };
! 528:
! 529: struct icmp6stat {
! 530: /* statistics related to icmp6 packets generated */
! 531: u_int64_t icp6s_error; /* # of calls to icmp6_error */
! 532: u_int64_t icp6s_canterror; /* no error because old was icmp */
! 533: u_int64_t icp6s_toofreq; /* no error because rate limitation */
! 534: u_int64_t icp6s_outhist[256];
! 535: /* statistics related to input message processed */
! 536: u_int64_t icp6s_badcode; /* icmp6_code out of range */
! 537: u_int64_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
! 538: u_int64_t icp6s_checksum; /* bad checksum */
! 539: u_int64_t icp6s_badlen; /* calculated bound mismatch */
! 540: /*
! 541: * number of responses: this member is inherited from netinet code, but
! 542: * for netinet6 code, it is already available in icp6s_outhist[].
! 543: */
! 544: u_int64_t icp6s_reflect;
! 545: u_int64_t icp6s_inhist[256];
! 546: u_int64_t icp6s_nd_toomanyopt; /* too many ND options */
! 547: struct icmp6errstat icp6s_outerrhist;
! 548: #define icp6s_odst_unreach_noroute \
! 549: icp6s_outerrhist.icp6errs_dst_unreach_noroute
! 550: #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
! 551: #define icp6s_odst_unreach_beyondscope \
! 552: icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
! 553: #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
! 554: #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
! 555: #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
! 556: #define icp6s_otime_exceed_transit \
! 557: icp6s_outerrhist.icp6errs_time_exceed_transit
! 558: #define icp6s_otime_exceed_reassembly \
! 559: icp6s_outerrhist.icp6errs_time_exceed_reassembly
! 560: #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
! 561: #define icp6s_oparamprob_nextheader \
! 562: icp6s_outerrhist.icp6errs_paramprob_nextheader
! 563: #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
! 564: #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
! 565: #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
! 566: u_int64_t icp6s_pmtuchg; /* path MTU changes */
! 567: u_int64_t icp6s_nd_badopt; /* bad ND options */
! 568: u_int64_t icp6s_badns; /* bad neighbor solicitation */
! 569: u_int64_t icp6s_badna; /* bad neighbor advertisement */
! 570: u_int64_t icp6s_badrs; /* bad router advertisement */
! 571: u_int64_t icp6s_badra; /* bad router advertisement */
! 572: u_int64_t icp6s_badredirect; /* bad redirect message */
! 573: };
! 574:
! 575: /*
! 576: * Names for ICMP sysctl objects
! 577: */
! 578: #define ICMPV6CTL_STATS 1
! 579: #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
! 580: #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
! 581: #if 0 /*obsoleted*/
! 582: #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
! 583: #endif
! 584: #define ICMPV6CTL_ND6_PRUNE 6
! 585: #define ICMPV6CTL_ND6_DELAY 8
! 586: #define ICMPV6CTL_ND6_UMAXTRIES 9
! 587: #define ICMPV6CTL_ND6_MMAXTRIES 10
! 588: #define ICMPV6CTL_ND6_USELOOPBACK 11
! 589: /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
! 590: #define ICMPV6CTL_NODEINFO 13
! 591: #define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */
! 592: #define ICMPV6CTL_ND6_MAXNUDHINT 15
! 593: #define ICMPV6CTL_MTUDISC_HIWAT 16
! 594: #define ICMPV6CTL_MTUDISC_LOWAT 17
! 595: #define ICMPV6CTL_ND6_DEBUG 18
! 596: #define ICMPV6CTL_ND6_DRLIST 19
! 597: #define ICMPV6CTL_ND6_PRLIST 20
! 598: #define ICMPV6CTL_MAXID 21
! 599:
! 600: #define ICMPV6CTL_NAMES { \
! 601: { 0, 0 }, \
! 602: { 0, 0 }, \
! 603: { "rediraccept", CTLTYPE_INT }, \
! 604: { "redirtimeout", CTLTYPE_INT }, \
! 605: { 0, 0 }, \
! 606: { 0, 0 }, \
! 607: { "nd6_prune", CTLTYPE_INT }, \
! 608: { 0, 0 }, \
! 609: { "nd6_delay", CTLTYPE_INT }, \
! 610: { "nd6_umaxtries", CTLTYPE_INT }, \
! 611: { "nd6_mmaxtries", CTLTYPE_INT }, \
! 612: { "nd6_useloopback", CTLTYPE_INT }, \
! 613: { 0, 0 }, \
! 614: { "nodeinfo", CTLTYPE_INT }, \
! 615: { "errppslimit", CTLTYPE_INT }, \
! 616: { "nd6_maxnudhint", CTLTYPE_INT }, \
! 617: { "mtudisc_hiwat", CTLTYPE_INT }, \
! 618: { "mtudisc_lowat", CTLTYPE_INT }, \
! 619: { "nd6_debug", CTLTYPE_INT }, \
! 620: { 0, 0 }, \
! 621: { 0, 0 }, \
! 622: }
! 623:
! 624: #define ICMPV6CTL_VARS { \
! 625: NULL, \
! 626: NULL, \
! 627: &icmp6_rediraccept, \
! 628: &icmp6_redirtimeout, \
! 629: NULL, \
! 630: NULL, \
! 631: &nd6_prune, \
! 632: NULL, \
! 633: &nd6_delay, \
! 634: &nd6_umaxtries, \
! 635: &nd6_mmaxtries, \
! 636: &nd6_useloopback, \
! 637: NULL, \
! 638: &icmp6_nodeinfo, \
! 639: &icmp6errppslim, \
! 640: &nd6_maxnudhint, \
! 641: &icmp6_mtudisc_hiwat, \
! 642: &icmp6_mtudisc_lowat, \
! 643: &nd6_debug, \
! 644: NULL, \
! 645: NULL, \
! 646: }
! 647:
! 648: #define RTF_PROBEMTU RTF_PROTO1
! 649:
! 650: #ifdef _KERNEL
! 651: # ifdef __STDC__
! 652: struct rtentry;
! 653: struct rttimer;
! 654: struct in6_multi;
! 655: # endif
! 656: void icmp6_init(void);
! 657: void icmp6_paramerror(struct mbuf *, int);
! 658: void icmp6_error(struct mbuf *, int, int, int);
! 659: int icmp6_input(struct mbuf **, int *, int);
! 660: void icmp6_fasttimo(void);
! 661: void icmp6_reflect(struct mbuf *, size_t);
! 662: void icmp6_prepare(struct mbuf *);
! 663: void icmp6_redirect_input(struct mbuf *, int);
! 664: void icmp6_redirect_output(struct mbuf *, struct rtentry *);
! 665: int icmp6_sysctl(int *, u_int, void *, size_t *, void *, size_t);
! 666:
! 667: struct ip6ctlparam;
! 668: void icmp6_mtudisc_update(struct ip6ctlparam *, int);
! 669: void icmp6_mtudisc_callback_register(void (*)(struct in6_addr *));
! 670:
! 671: /* XXX: is this the right place for these macros? */
! 672: #define icmp6_ifstat_inc(ifp, tag) \
! 673: do { \
! 674: if (ifp) \
! 675: ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
! 676: } while (0)
! 677:
! 678: #define icmp6_ifoutstat_inc(ifp, type, code) \
! 679: do { \
! 680: icmp6_ifstat_inc(ifp, ifs6_out_msg); \
! 681: switch(type) { \
! 682: case ICMP6_DST_UNREACH: \
! 683: icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
! 684: if (code == ICMP6_DST_UNREACH_ADMIN) \
! 685: icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
! 686: break; \
! 687: case ICMP6_PACKET_TOO_BIG: \
! 688: icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
! 689: break; \
! 690: case ICMP6_TIME_EXCEEDED: \
! 691: icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
! 692: break; \
! 693: case ICMP6_PARAM_PROB: \
! 694: icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
! 695: break; \
! 696: case ICMP6_ECHO_REQUEST: \
! 697: icmp6_ifstat_inc(ifp, ifs6_out_echo); \
! 698: break; \
! 699: case ICMP6_ECHO_REPLY: \
! 700: icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
! 701: break; \
! 702: case MLD_LISTENER_QUERY: \
! 703: icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
! 704: break; \
! 705: case MLD_LISTENER_REPORT: \
! 706: icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
! 707: break; \
! 708: case MLD_LISTENER_DONE: \
! 709: icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
! 710: break; \
! 711: case ND_ROUTER_SOLICIT: \
! 712: icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
! 713: break; \
! 714: case ND_ROUTER_ADVERT: \
! 715: icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
! 716: break; \
! 717: case ND_NEIGHBOR_SOLICIT: \
! 718: icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
! 719: break; \
! 720: case ND_NEIGHBOR_ADVERT: \
! 721: icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
! 722: break; \
! 723: case ND_REDIRECT: \
! 724: icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
! 725: break; \
! 726: } \
! 727: } while (0)
! 728:
! 729: extern int icmp6_rediraccept; /* accept/process redirects */
! 730: extern int icmp6_redirtimeout; /* cache time for redirect routes */
! 731: #endif /* _KERNEL */
! 732: #endif /* _NETINET_ICMP6_H_ */
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