1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ 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_var.h 8.1 (Berkeley) 6/10/93 63 */ 64 65 #ifndef _NETINET6_IP6_VAR_H_ 66 #define _NETINET6_IP6_VAR_H_ 67 68 #include <sys/epoch.h> 69 70 #ifdef _KERNEL 71 struct ip6asfrag; /* frag6.c */ 72 TAILQ_HEAD(ip6fraghead, ip6asfrag); 73 74 /* 75 * IP6 reassembly queue structure. Each fragment 76 * being reassembled is attached to one of these structures. 77 */ 78 struct ip6q { 79 struct ip6fraghead ip6q_frags; 80 u_int32_t ip6q_ident; 81 u_int8_t ip6q_nxt; 82 u_int8_t ip6q_ecn; 83 u_int16_t ip6q_ttl; 84 struct in6_addr ip6q_src, ip6q_dst; 85 TAILQ_ENTRY(ip6q) ip6q_tq; 86 int ip6q_unfrglen; /* len of unfragmentable part */ 87 int ip6q_nfrag; /* # of fragments */ 88 struct label *ip6q_label; 89 }; 90 #endif /* _KERNEL */ 91 92 /* 93 * IP6 reinjecting structure. 94 */ 95 struct ip6_direct_ctx { 96 uint32_t ip6dc_nxt; /* next header to process */ 97 uint32_t ip6dc_off; /* offset to next header */ 98 }; 99 100 #if defined(_NETINET6_IN6_VAR_H_) && defined(_KERNEL) 101 /* 102 * Structure attached to inpcb.in6p_moptions and 103 * passed to ip6_output when IPv6 multicast options are in use. 104 * This structure is lazy-allocated. 105 */ 106 struct ip6_moptions { 107 struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */ 108 u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */ 109 u_char im6o_multicast_loop; /* 1 >= hear sends if a member */ 110 struct ip6_mfilter_head im6o_head; /* group membership list */ 111 }; 112 #else 113 struct ip6_moptions; 114 #endif 115 /* 116 * Control options for outgoing packets 117 */ 118 119 /* Routing header related info */ 120 struct ip6po_rhinfo { 121 struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */ 122 struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */ 123 }; 124 #define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr 125 #define ip6po_route ip6po_rhinfo.ip6po_rhi_route 126 127 /* Nexthop related info */ 128 struct ip6po_nhinfo { 129 struct sockaddr *ip6po_nhi_nexthop; 130 struct route_in6 ip6po_nhi_route; /* Route to the nexthop */ 131 }; 132 #define ip6po_nexthop ip6po_nhinfo.ip6po_nhi_nexthop 133 #define ip6po_nextroute ip6po_nhinfo.ip6po_nhi_route 134 135 struct ip6_pktopts { 136 struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */ 137 int ip6po_hlim; /* Hoplimit for outgoing packets */ 138 139 /* Outgoing IF/address information */ 140 struct in6_pktinfo *ip6po_pktinfo; 141 142 /* Next-hop address information */ 143 struct ip6po_nhinfo ip6po_nhinfo; 144 145 struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */ 146 147 /* Destination options header (before a routing header) */ 148 struct ip6_dest *ip6po_dest1; 149 150 /* Routing header related info. */ 151 struct ip6po_rhinfo ip6po_rhinfo; 152 153 /* Destination options header (after a routing header) */ 154 struct ip6_dest *ip6po_dest2; 155 156 int ip6po_tclass; /* traffic class */ 157 158 int ip6po_minmtu; /* fragment vs PMTU discovery policy */ 159 #define IP6PO_MINMTU_MCASTONLY -1 /* default; send at min MTU for multicast*/ 160 #define IP6PO_MINMTU_DISABLE 0 /* always perform pmtu disc */ 161 #define IP6PO_MINMTU_ALL 1 /* always send at min MTU */ 162 163 int ip6po_prefer_tempaddr; /* whether temporary addresses are 164 preferred as source address */ 165 #define IP6PO_TEMPADDR_SYSTEM -1 /* follow the system default */ 166 #define IP6PO_TEMPADDR_NOTPREFER 0 /* not prefer temporary address */ 167 #define IP6PO_TEMPADDR_PREFER 1 /* prefer temporary address */ 168 169 int ip6po_flags; 170 #if 0 /* parameters in this block is obsolete. do not reuse the values. */ 171 #define IP6PO_REACHCONF 0x01 /* upper-layer reachability confirmation. */ 172 #define IP6PO_MINMTU 0x02 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 173 #endif 174 #define IP6PO_DONTFRAG 0x04 /* disable fragmentation (IPV6_DONTFRAG) */ 175 #define IP6PO_USECOA 0x08 /* use care of address */ 176 }; 177 178 /* 179 * Control options for incoming packets 180 */ 181 182 struct ip6stat { 183 uint64_t ip6s_total; /* total packets received */ 184 uint64_t ip6s_tooshort; /* packet too short */ 185 uint64_t ip6s_toosmall; /* not enough data */ 186 uint64_t ip6s_fragments; /* fragments received */ 187 uint64_t ip6s_fragdropped; /* frags dropped(dups, out of space) */ 188 uint64_t ip6s_fragtimeout; /* fragments timed out */ 189 uint64_t ip6s_fragoverflow; /* fragments that exceeded limit */ 190 uint64_t ip6s_forward; /* packets forwarded */ 191 uint64_t ip6s_cantforward; /* packets rcvd for unreachable dest */ 192 uint64_t ip6s_redirectsent; /* packets forwarded on same net */ 193 uint64_t ip6s_delivered; /* datagrams delivered to upper level*/ 194 uint64_t ip6s_localout; /* total ip packets generated here */ 195 uint64_t ip6s_odropped; /* lost packets due to nobufs, etc. */ 196 uint64_t ip6s_reassembled; /* total packets reassembled ok */ 197 uint64_t ip6s_atomicfrags; /* atomic fragments */ 198 uint64_t ip6s_fragmented; /* datagrams successfully fragmented */ 199 uint64_t ip6s_ofragments; /* output fragments created */ 200 uint64_t ip6s_cantfrag; /* don't fragment flag was set, etc. */ 201 uint64_t ip6s_badoptions; /* error in option processing */ 202 uint64_t ip6s_noroute; /* packets discarded due to no route */ 203 uint64_t ip6s_badvers; /* ip6 version != 6 */ 204 uint64_t ip6s_rawout; /* total raw ip packets generated */ 205 uint64_t ip6s_badscope; /* scope error */ 206 uint64_t ip6s_notmember; /* don't join this multicast group */ 207 #define IP6S_HDRCNT 256 /* headers count */ 208 uint64_t ip6s_nxthist[IP6S_HDRCNT]; /* next header history */ 209 uint64_t ip6s_m1; /* one mbuf */ 210 #define IP6S_M2MMAX 32 211 uint64_t ip6s_m2m[IP6S_M2MMAX]; /* two or more mbuf */ 212 uint64_t ip6s_mext1; /* one ext mbuf */ 213 uint64_t ip6s_mext2m; /* two or more ext mbuf */ 214 uint64_t ip6s_exthdrtoolong; /* ext hdr are not contiguous */ 215 uint64_t ip6s_nogif; /* no match gif found */ 216 uint64_t ip6s_toomanyhdr; /* discarded due to too many headers */ 217 218 /* 219 * statistics for improvement of the source address selection 220 * algorithm: 221 * XXX: hardcoded 16 = # of ip6 multicast scope types + 1 222 */ 223 #define IP6S_RULESMAX 16 224 #define IP6S_SCOPECNT 16 225 /* number of times that address selection fails */ 226 uint64_t ip6s_sources_none; 227 /* number of times that an address on the outgoing I/F is chosen */ 228 uint64_t ip6s_sources_sameif[IP6S_SCOPECNT]; 229 /* number of times that an address on a non-outgoing I/F is chosen */ 230 uint64_t ip6s_sources_otherif[IP6S_SCOPECNT]; 231 /* 232 * number of times that an address that has the same scope 233 * from the destination is chosen. 234 */ 235 uint64_t ip6s_sources_samescope[IP6S_SCOPECNT]; 236 /* 237 * number of times that an address that has a different scope 238 * from the destination is chosen. 239 */ 240 uint64_t ip6s_sources_otherscope[IP6S_SCOPECNT]; 241 /* number of times that a deprecated address is chosen */ 242 uint64_t ip6s_sources_deprecated[IP6S_SCOPECNT]; 243 244 /* number of times that each rule of source selection is applied. */ 245 uint64_t ip6s_sources_rule[IP6S_RULESMAX]; 246 }; 247 248 #ifdef _KERNEL 249 #include <sys/counter.h> 250 251 VNET_PCPUSTAT_DECLARE(struct ip6stat, ip6stat); 252 #define IP6STAT_ADD(name, val) \ 253 VNET_PCPUSTAT_ADD(struct ip6stat, ip6stat, name, (val)) 254 #define IP6STAT_SUB(name, val) IP6STAT_ADD(name, -(val)) 255 #define IP6STAT_INC(name) IP6STAT_ADD(name, 1) 256 #define IP6STAT_DEC(name) IP6STAT_SUB(name, 1) 257 #endif 258 259 #ifdef _KERNEL 260 /* flags passed to ip6_output as last parameter */ 261 #define IPV6_UNSPECSRC 0x01 /* allow :: as the source address */ 262 #define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */ 263 #define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 264 265 #ifdef __NO_STRICT_ALIGNMENT 266 #define IP6_HDR_ALIGNED_P(ip) 1 267 #else 268 #define IP6_HDR_ALIGNED_P(ip) ((((intptr_t) (ip)) & 3) == 0) 269 #endif 270 271 VNET_DECLARE(int, ip6_defhlim); /* default hop limit */ 272 VNET_DECLARE(int, ip6_defmcasthlim); /* default multicast hop limit */ 273 VNET_DECLARE(int, ip6_forwarding); /* act as router? */ 274 VNET_DECLARE(int, ip6_use_deprecated); /* allow deprecated addr as source */ 275 VNET_DECLARE(int, ip6_rr_prune); /* router renumbering prefix 276 * walk list every 5 sec. */ 277 VNET_DECLARE(int, ip6_mcast_pmtu); /* enable pMTU discovery for multicast? */ 278 VNET_DECLARE(int, ip6_v6only); 279 #define V_ip6_defhlim VNET(ip6_defhlim) 280 #define V_ip6_defmcasthlim VNET(ip6_defmcasthlim) 281 #define V_ip6_forwarding VNET(ip6_forwarding) 282 #define V_ip6_use_deprecated VNET(ip6_use_deprecated) 283 #define V_ip6_rr_prune VNET(ip6_rr_prune) 284 #define V_ip6_mcast_pmtu VNET(ip6_mcast_pmtu) 285 #define V_ip6_v6only VNET(ip6_v6only) 286 287 VNET_DECLARE(struct socket *, ip6_mrouter); /* multicast routing daemon */ 288 VNET_DECLARE(int, ip6_sendredirects); /* send IP redirects when forwarding? */ 289 VNET_DECLARE(int, ip6_accept_rtadv); /* Acts as a host not a router */ 290 VNET_DECLARE(int, ip6_no_radr); /* No defroute from RA */ 291 VNET_DECLARE(int, ip6_norbit_raif); /* Disable R-bit in NA on RA 292 * receiving IF. */ 293 VNET_DECLARE(int, ip6_rfc6204w3); /* Accept defroute from RA even when 294 forwarding enabled */ 295 VNET_DECLARE(int, ip6_hdrnestlimit); /* upper limit of # of extension 296 * headers */ 297 VNET_DECLARE(int, ip6_dad_count); /* DupAddrDetectionTransmits */ 298 #define V_ip6_mrouter VNET(ip6_mrouter) 299 #define V_ip6_sendredirects VNET(ip6_sendredirects) 300 #define V_ip6_accept_rtadv VNET(ip6_accept_rtadv) 301 #define V_ip6_no_radr VNET(ip6_no_radr) 302 #define V_ip6_norbit_raif VNET(ip6_norbit_raif) 303 #define V_ip6_rfc6204w3 VNET(ip6_rfc6204w3) 304 #define V_ip6_hdrnestlimit VNET(ip6_hdrnestlimit) 305 #define V_ip6_dad_count VNET(ip6_dad_count) 306 307 VNET_DECLARE(int, ip6_auto_flowlabel); 308 VNET_DECLARE(int, ip6_auto_linklocal); 309 #define V_ip6_auto_flowlabel VNET(ip6_auto_flowlabel) 310 #define V_ip6_auto_linklocal VNET(ip6_auto_linklocal) 311 312 VNET_DECLARE(int, ip6_use_tempaddr); /* Whether to use temporary addresses */ 313 VNET_DECLARE(int, ip6_prefer_tempaddr); /* Whether to prefer temporary 314 * addresses in the source address 315 * selection */ 316 #define V_ip6_use_tempaddr VNET(ip6_use_tempaddr) 317 #define V_ip6_prefer_tempaddr VNET(ip6_prefer_tempaddr) 318 319 VNET_DECLARE(int, ip6_use_defzone); /* Whether to use the default scope 320 * zone when unspecified */ 321 #define V_ip6_use_defzone VNET(ip6_use_defzone) 322 323 VNET_DECLARE(struct pfil_head *, inet6_pfil_head); 324 #define V_inet6_pfil_head VNET(inet6_pfil_head) 325 #define PFIL_INET6_NAME "inet6" 326 327 VNET_DECLARE(struct pfil_head *, inet6_local_pfil_head); 328 #define V_inet6_local_pfil_head VNET(inet6_local_pfil_head) 329 #define PFIL_INET6_LOCAL_NAME "inet6-local" 330 331 #ifdef IPSTEALTH 332 VNET_DECLARE(int, ip6stealth); 333 #define V_ip6stealth VNET(ip6stealth) 334 #endif 335 336 #ifdef EXPERIMENTAL 337 VNET_DECLARE(int, nd6_ignore_ipv6_only_ra); 338 #define V_nd6_ignore_ipv6_only_ra VNET(nd6_ignore_ipv6_only_ra) 339 #endif 340 341 VNET_DECLARE(bool, ip6_log_cannot_forward); 342 #define V_ip6_log_cannot_forward VNET(ip6_log_cannot_forward) 343 344 extern struct pr_usrreqs rip6_usrreqs; 345 struct sockopt; 346 347 struct inpcb; 348 struct ucred; 349 350 int icmp6_ctloutput(struct socket *, struct sockopt *sopt); 351 352 void ip6_input(struct mbuf *); 353 void ip6_direct_input(struct mbuf *); 354 void ip6_freepcbopts(struct ip6_pktopts *); 355 356 int ip6_unknown_opt(u_int8_t *, struct mbuf *, int); 357 int ip6_get_prevhdr(const struct mbuf *, int); 358 int ip6_nexthdr(const struct mbuf *, int, int, int *); 359 int ip6_lasthdr(const struct mbuf *, int, int, int *); 360 361 extern int (*ip6_mforward)(struct ip6_hdr *, struct ifnet *, 362 struct mbuf *); 363 364 int ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *, 365 u_int32_t *); 366 struct mbuf **ip6_savecontrol_v4(struct inpcb *, struct mbuf *, 367 struct mbuf **, int *); 368 void ip6_savecontrol(struct inpcb *, struct mbuf *, struct mbuf **); 369 void ip6_notify_pmtu(struct inpcb *, struct sockaddr_in6 *, u_int32_t); 370 int ip6_sysctl(int *, u_int, void *, size_t *, void *, size_t); 371 372 void ip6_forward(struct mbuf *, int); 373 374 void ip6_mloopback(struct ifnet *, struct mbuf *); 375 int ip6_output(struct mbuf *, struct ip6_pktopts *, 376 struct route_in6 *, 377 int, 378 struct ip6_moptions *, struct ifnet **, 379 struct inpcb *); 380 int ip6_ctloutput(struct socket *, struct sockopt *); 381 int ip6_raw_ctloutput(struct socket *, struct sockopt *); 382 void ip6_initpktopts(struct ip6_pktopts *); 383 int ip6_setpktopts(struct mbuf *, struct ip6_pktopts *, 384 struct ip6_pktopts *, struct ucred *, int); 385 void ip6_clearpktopts(struct ip6_pktopts *, int); 386 struct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int); 387 int ip6_optlen(struct inpcb *); 388 int ip6_deletefraghdr(struct mbuf *, int, int); 389 int ip6_fragment(struct ifnet *, struct mbuf *, int, u_char, int, 390 uint32_t); 391 392 int route6_input(struct mbuf **, int *, int); 393 394 void frag6_init(void); 395 void frag6_destroy(void); 396 int frag6_input(struct mbuf **, int *, int); 397 void frag6_drain(void); 398 399 void rip6_init(void); 400 int rip6_ctloutput(struct socket *, struct sockopt *); 401 int rip6_usrreq(struct socket *, 402 int, struct mbuf *, struct mbuf *, struct mbuf *, struct thread *); 403 404 int dest6_input(struct mbuf **, int *, int); 405 int none_input(struct mbuf **, int *, int); 406 407 int in6_selectsrc_socket(struct sockaddr_in6 *, struct ip6_pktopts *, 408 struct inpcb *, struct ucred *, int, struct in6_addr *, int *); 409 int in6_selectsrc_addr(uint32_t, const struct in6_addr *, 410 uint32_t, struct ifnet *, struct in6_addr *, int *); 411 int in6_selectroute(struct sockaddr_in6 *, struct ip6_pktopts *, 412 struct ip6_moptions *, struct route_in6 *, struct ifnet **, 413 struct nhop_object **, u_int, uint32_t); 414 u_int32_t ip6_randomid(void); 415 u_int32_t ip6_randomflowlabel(void); 416 void in6_delayed_cksum(struct mbuf *m, uint32_t plen, u_short offset); 417 418 int ip6_log_ratelimit(void); 419 420 /* 421 * Argument type for the last arg of ip6proto_ctlinput_t(). 422 * 423 * IPv6 ICMP IPv6 [exthdrs] finalhdr payload 424 * ^ ^ ^ ^ 425 * | | ip6c_ip6 ip6c_off 426 * | ip6c_icmp6 427 * ip6c_m 428 * 429 * ip6c_finaldst's sin6_addr usually points to ip6c_ip6->ip6_dst. If the 430 * original * (internal) packet carries a routing header, it may point the 431 * final * destination address in the routing header. 432 * 433 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6 434 * (beware of flowlabel, if you try to compare it against others) 435 * ip6c_dst: ip6c_finaldst + scope info 436 */ 437 struct ip6ctlparam { 438 struct mbuf *ip6c_m; /* start of mbuf chain */ 439 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */ 440 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */ 441 int ip6c_off; /* offset of the target proto header */ 442 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */ 443 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */ 444 struct sockaddr_in6 *ip6c_finaldst; /* final destination address */ 445 void *ip6c_cmdarg; /* control command dependent data */ 446 u_int8_t ip6c_nxt; /* final next header field */ 447 }; 448 449 typedef int ip6proto_input_t(struct mbuf **, int *, int); 450 typedef void ip6proto_ctlinput_t(struct ip6ctlparam *); 451 int ip6proto_register(uint8_t, ip6proto_input_t, ip6proto_ctlinput_t); 452 int ip6proto_unregister(uint8_t); 453 #define IP6PROTO_REGISTER(prot, input, ctl) do { \ 454 int error __diagused; \ 455 error = ip6proto_register(prot, input, ctl); \ 456 MPASS(error == 0); \ 457 } while (0) 458 459 ip6proto_input_t rip6_input; 460 ip6proto_ctlinput_t rip6_ctlinput; 461 462 #endif /* _KERNEL */ 463 464 #endif /* !_NETINET6_IP6_VAR_H_ */ 465