1/* 2 * Copyright (c) 2000-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29/* $FreeBSD: src/sys/netinet6/ip6_var.h,v 1.2.2.2 2001/07/03 11:01:54 ume Exp $ */ 30/* $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ */ 31 32/* 33 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the project nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 */ 60 61/* 62 * Copyright (c) 1982, 1986, 1993 63 * The Regents of the University of California. All rights reserved. 64 * 65 * Redistribution and use in source and binary forms, with or without 66 * modification, are permitted provided that the following conditions 67 * are met: 68 * 1. Redistributions of source code must retain the above copyright 69 * notice, this list of conditions and the following disclaimer. 70 * 2. Redistributions in binary form must reproduce the above copyright 71 * notice, this list of conditions and the following disclaimer in the 72 * documentation and/or other materials provided with the distribution. 73 * 3. All advertising materials mentioning features or use of this software 74 * must display the following acknowledgement: 75 * This product includes software developed by the University of 76 * California, Berkeley and its contributors. 77 * 4. Neither the name of the University nor the names of its contributors 78 * may be used to endorse or promote products derived from this software 79 * without specific prior written permission. 80 * 81 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 82 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 83 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 84 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 85 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 86 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 87 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 88 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 89 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 90 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 91 * SUCH DAMAGE. 92 * 93 * @(#)ip_var.h 8.1 (Berkeley) 6/10/93 94 */ 95 96#ifndef _NETINET6_IP6_VAR_H_ 97#define _NETINET6_IP6_VAR_H_ 98#include <sys/appleapiopts.h> 99 100#ifdef XNU_KERNEL_PRIVATE 101/* 102 * IP6 reassembly queue structure. Each fragment 103 * being reassembled is attached to one of these structures. 104 */ 105struct ip6q { 106 struct ip6asfrag *ip6q_down; 107 struct ip6asfrag *ip6q_up; 108 u_int32_t ip6q_ident; 109 u_int8_t ip6q_nxt; 110 u_int8_t ip6q_ecn; 111 u_int8_t ip6q_ttl; 112 struct in6_addr ip6q_src, ip6q_dst; 113 struct ip6q *ip6q_next; 114 struct ip6q *ip6q_prev; 115 int ip6q_unfrglen; /* len of unfragmentable part */ 116#if notyet 117 u_char *ip6q_nxtp; 118#endif 119 int ip6q_nfrag; /* # of fragments */ 120}; 121 122struct ip6asfrag { 123 struct ip6asfrag *ip6af_down; 124 struct ip6asfrag *ip6af_up; 125 struct mbuf *ip6af_m; 126 int ip6af_offset; /* offset in ip6af_m to next header */ 127 int ip6af_frglen; /* fragmentable part length */ 128 int ip6af_off; /* fragment offset */ 129 u_int16_t ip6af_mff; /* more fragment bit in frag off */ 130}; 131 132#define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m)) 133 134struct ip6_moptions { 135 decl_lck_mtx_data(, im6o_lock); 136 uint32_t im6o_refcnt; /* ref count */ 137 uint32_t im6o_debug; /* see ifa_debug flags */ 138 struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */ 139 u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */ 140 u_char im6o_multicast_loop; /* 1 >= hear sends if a member */ 141 u_short im6o_num_memberships; /* no. memberships this socket */ 142 u_short im6o_max_memberships; /* max memberships this socket */ 143 struct in6_multi **im6o_membership; /* group memberships */ 144 struct in6_mfilter *im6o_mfilters; /* source filters */ 145 void (*im6o_trace) /* callback fn for tracing refs */ 146 (struct ip6_moptions *, int); 147}; 148 149#define IM6O_LOCK_ASSERT_HELD(_im6o) \ 150 lck_mtx_assert(&(_im6o)->im6o_lock, LCK_MTX_ASSERT_OWNED) 151 152#define IM6O_LOCK_ASSERT_NOTHELD(_im6o) \ 153 lck_mtx_assert(&(_im6o)->im6o_lock, LCK_MTX_ASSERT_NOTOWNED) 154 155#define IM6O_LOCK(_im6o) \ 156 lck_mtx_lock(&(_im6o)->im6o_lock) 157 158#define IM6O_LOCK_SPIN(_im6o) \ 159 lck_mtx_lock_spin(&(_im6o)->im6o_lock) 160 161#define IM6O_CONVERT_LOCK(_im6o) do { \ 162 IM6O_LOCK_ASSERT_HELD(_im6o); \ 163 lck_mtx_convert_spin(&(_im6o)->im6o_lock); \ 164} while (0) 165 166#define IM6O_UNLOCK(_im6o) \ 167 lck_mtx_unlock(&(_im6o)->im6o_lock) 168 169#define IM6O_ADDREF(_im6o) \ 170 im6o_addref(_im6o, 0) 171 172#define IM6O_ADDREF_LOCKED(_im6o) \ 173 im6o_addref(_im6o, 1) 174 175#define IM6O_REMREF(_im6o) \ 176 im6o_remref(_im6o) 177 178struct ip6_exthdrs { 179 struct mbuf *ip6e_ip6; 180 struct mbuf *ip6e_hbh; 181 struct mbuf *ip6e_dest1; 182 struct mbuf *ip6e_rthdr; 183 struct mbuf *ip6e_dest2; 184}; 185 186/* 187 * Control options for outgoing packets 188 */ 189 190/* Routing header related info */ 191struct ip6po_rhinfo { 192 struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */ 193 struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */ 194}; 195#define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr 196#define ip6po_route ip6po_rhinfo.ip6po_rhi_route 197 198/* Nexthop related info */ 199struct ip6po_nhinfo { 200 struct sockaddr *ip6po_nhi_nexthop; 201 struct route_in6 ip6po_nhi_route; /* Route to the nexthop */ 202}; 203#define ip6po_nexthop ip6po_nhinfo.ip6po_nhi_nexthop 204#define ip6po_nextroute ip6po_nhinfo.ip6po_nhi_route 205 206struct ip6_pktopts { 207 struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */ 208 int ip6po_hlim; /* Hoplimit for outgoing packets */ 209 210 /* Outgoing IF/address information */ 211 struct in6_pktinfo *ip6po_pktinfo; 212 213 /* Next-hop address information */ 214 struct ip6po_nhinfo ip6po_nhinfo; 215 216 struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */ 217 218 /* Destination options header (before a routing header) */ 219 struct ip6_dest *ip6po_dest1; 220 221 /* Routing header related info. */ 222 struct ip6po_rhinfo ip6po_rhinfo; 223 224 /* Destination options header (after a routing header) */ 225 struct ip6_dest *ip6po_dest2; 226 227 int ip6po_tclass; /* traffic class */ 228 229 int ip6po_minmtu; /* fragment vs PMTU discovery policy */ 230#define IP6PO_MINMTU_MCASTONLY -1 /* default; send at min MTU for multicast*/ 231#define IP6PO_MINMTU_DISABLE 0 /* always perform pmtu disc */ 232#define IP6PO_MINMTU_ALL 1 /* always send at min MTU */ 233 234 int ip6po_prefer_tempaddr; /* whether temporary addresses are 235 preferred as source address */ 236#define IP6PO_TEMPADDR_SYSTEM -1 /* follow the system default */ 237#define IP6PO_TEMPADDR_NOTPREFER 0 /* not prefer temporary address */ 238#define IP6PO_TEMPADDR_PREFER 1 /* prefer temporary address */ 239 240 int ip6po_flags; 241#if 0 /* parameters in this block is obsolete. do not reuse the values. */ 242#define IP6PO_REACHCONF 0x01 /* upper-layer reachability confirmation. */ 243#define IP6PO_MINMTU 0x02 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 244#endif 245#define IP6PO_DONTFRAG 0x04 /* disable fragmentation (IPV6_DONTFRAG) */ 246#define IP6PO_USECOA 0x08 /* use care of address */ 247}; 248 249/* 250 * Control options for incoming packets 251 */ 252#endif /* XNU_KERNEL_PRIVATE */ 253 254struct ip6stat { 255 u_quad_t ip6s_total; /* total packets received */ 256 u_quad_t ip6s_tooshort; /* packet too short */ 257 u_quad_t ip6s_toosmall; /* not enough data */ 258 u_quad_t ip6s_fragments; /* fragments received */ 259 u_quad_t ip6s_fragdropped; /* frags dropped(dups, out of space) */ 260 u_quad_t ip6s_fragtimeout; /* fragments timed out */ 261 u_quad_t ip6s_fragoverflow; /* fragments that exceeded limit */ 262 u_quad_t ip6s_forward; /* packets forwarded */ 263 u_quad_t ip6s_cantforward; /* packets rcvd for unreachable dest */ 264 u_quad_t ip6s_redirectsent; /* packets forwarded on same net */ 265 u_quad_t ip6s_delivered; /* datagrams delivered to upper level*/ 266 u_quad_t ip6s_localout; /* total ip packets generated here */ 267 u_quad_t ip6s_odropped; /* lost packets due to nobufs, etc. */ 268 u_quad_t ip6s_reassembled; /* total packets reassembled ok */ 269 u_quad_t ip6s_fragmented; /* datagrams successfully fragmented */ 270 u_quad_t ip6s_ofragments; /* output fragments created */ 271 u_quad_t ip6s_cantfrag; /* don't fragment flag was set, etc. */ 272 u_quad_t ip6s_badoptions; /* error in option processing */ 273 u_quad_t ip6s_noroute; /* packets discarded due to no route */ 274 u_quad_t ip6s_badvers; /* ip6 version != 6 */ 275 u_quad_t ip6s_rawout; /* total raw ip packets generated */ 276 u_quad_t ip6s_badscope; /* scope error */ 277 u_quad_t ip6s_notmember; /* don't join this multicast group */ 278 u_quad_t ip6s_nxthist[256]; /* next header history */ 279 u_quad_t ip6s_m1; /* one mbuf */ 280 u_quad_t ip6s_m2m[32]; /* two or more mbuf */ 281 u_quad_t ip6s_mext1; /* one ext mbuf */ 282 u_quad_t ip6s_mext2m; /* two or more ext mbuf */ 283 u_quad_t ip6s_exthdrtoolong; /* ext hdr are not continuous */ 284 u_quad_t ip6s_nogif; /* no match gif found */ 285 u_quad_t ip6s_toomanyhdr; /* discarded due to too many headers */ 286 287 /* 288 * statistics for improvement of the source address selection 289 * algorithm: 290 * XXX: hardcoded 16 = # of ip6 multicast scope types + 1 291 */ 292 /* number of times that address selection fails */ 293 u_quad_t ip6s_sources_none; 294 /* number of times that an address on the outgoing I/F is chosen */ 295 u_quad_t ip6s_sources_sameif[16]; 296 /* number of times that an address on a non-outgoing I/F is chosen */ 297 u_quad_t ip6s_sources_otherif[16]; 298 /* 299 * number of times that an address that has the same scope 300 * from the destination is chosen. 301 */ 302 u_quad_t ip6s_sources_samescope[16]; 303 /* 304 * number of times that an address that has a different scope 305 * from the destination is chosen. 306 */ 307 u_quad_t ip6s_sources_otherscope[16]; 308 /* number of times that a deprecated address is chosen */ 309 u_quad_t ip6s_sources_deprecated[16]; 310 311 u_quad_t ip6s_forward_cachehit; 312 u_quad_t ip6s_forward_cachemiss; 313 314 /* number of times that each rule of source selection is applied. */ 315 u_quad_t ip6s_sources_rule[16]; 316#ifdef PRIVATE 317 u_quad_t ip6s_pktdropcntrl; /* pkt dropped, no mbufs for control data */ 318#endif /* PRIVATE */ 319}; 320 321#ifdef KERNEL_PRIVATE 322#ifdef KERNEL 323/* 324 * IPv6 onion peeling state. 325 * it will be initialized when we come into ip6_input(). 326 * XXX do not make it a kitchen sink! 327 */ 328struct ip6aux { 329 u_int32_t ip6a_flags; 330#define IP6A_SWAP 0x01 /* swapped home/care-of on packet */ 331#define IP6A_HASEEN 0x02 /* HA was present */ 332#define IP6A_BRUID 0x04 /* BR Unique Identifier was present */ 333#define IP6A_RTALERTSEEN 0x08 /* rtalert present */ 334 335 /* ip6.ip6_src */ 336 struct in6_addr ip6a_careof; /* care-of address of the peer */ 337 struct in6_addr ip6a_home; /* home address of the peer */ 338 u_int16_t ip6a_bruid; /* BR unique identifier */ 339 340 /* ip6.ip6_dst */ 341 struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */ 342 343 /* rtalert */ 344 u_int16_t ip6a_rtalert; /* rtalert option value */ 345 346 /* 347 * decapsulation history will be here. 348 * with IPsec it may not be accurate. 349 */ 350}; 351 352/* flags passed to ip6_output as last parameter */ 353#define IPV6_UNSPECSRC 0x01 /* allow :: as the source address */ 354#define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */ 355#define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 356#define IPV6_FLAG_NOSRCIFSEL 0x80 /* bypas source address selection */ 357#define IPV6_OUTARGS 0x100 /* has ancillary output info */ 358 359#ifdef XNU_KERNEL_PRIVATE 360#define IP6_HDR_ALIGNED_P(_ip6) ((((uintptr_t)(_ip6)) & ((uintptr_t)3)) == 0) 361 362/* 363 * On platforms which require strict alignment (currently for anything but 364 * i386 or x86_64), this macro checks whether the pointer to the IP header 365 * is 32-bit aligned, and assert otherwise. 366 */ 367#if defined(__i386__) || defined(__x86_64__) 368#define IP6_HDR_STRICT_ALIGNMENT_CHECK(_ip6) do { } while (0) 369#else /* !__i386__ && !__x86_64__ */ 370#define IP6_HDR_STRICT_ALIGNMENT_CHECK(_ip6) do { \ 371 if (!IP_HDR_ALIGNED_P(_ip6)) { \ 372 panic_plain("\n%s: Unaligned IPv6 header %p\n", \ 373 __func__, _ip6); \ 374 } \ 375} while (0) 376#endif /* !__i386__ && !__x86_64__ */ 377#endif /* XNU_KERNEL_PRIVATE */ 378 379#include <net/flowadv.h> 380 381/* 382 * Extra information passed to ip6_output when IPV6_OUTARGS is set. 383 */ 384struct ip6_out_args { 385 unsigned int ip6oa_boundif; /* bound outgoing interface */ 386 struct flowadv ip6oa_flowadv; /* flow advisory code */ 387 u_int32_t ip6oa_flags; /* IP6OAF flags (see below) */ 388#define IP6OAF_SELECT_SRCIF 0x00000001 /* src interface selection */ 389#define IP6OAF_BOUND_IF 0x00000002 /* boundif value is valid */ 390#define IP6OAF_BOUND_SRCADDR 0x00000004 /* bound to src address */ 391#define IP6OAF_NO_CELLULAR 0x00000010 /* skip IFT_CELLULAR */ 392}; 393 394extern struct ip6stat ip6stat; /* statistics */ 395extern u_int32_t ip6_id; /* fragment identifier */ 396extern int ip6_defhlim; /* default hop limit */ 397extern int ip6_defmcasthlim; /* default multicast hop limit */ 398extern int ip6_forwarding; /* act as router? */ 399extern int ip6_forward_srcrt; /* forward src-routed? */ 400extern int ip6_gif_hlim; /* Hop limit for gif encap packet */ 401extern int ip6_use_deprecated; /* allow deprecated addr as source */ 402extern int ip6_rr_prune; /* router renumbering prefix 403 * walk list every 5 sec. */ 404extern int ip6_mcast_pmtu; /* enable pMTU discovery for multicast? */ 405#define ip6_mapped_addr_on (!ip6_v6only) 406extern int ip6_v6only; 407 408extern int ip6_neighborgcthresh; /* Threshold # of NDP entries for GC */ 409extern int ip6_maxifprefixes; /* Max acceptable prefixes via RA per IF */ 410extern int ip6_maxifdefrouters; /* Max acceptable def routers via RA */ 411extern int ip6_maxdynroutes; /* Max # of routes created via redirect */ 412#if MROUTING 413extern struct socket *ip6_mrouter; /* multicast routing daemon */ 414#endif 415extern int ip6_sendredirects; /* send IP redirects when forwarding? */ 416extern int ip6_maxfragpackets; /* Maximum packets in reassembly queue */ 417extern int ip6_maxfrags; /* Maximum fragments in reassembly queue */ 418extern int ip6_sourcecheck; /* Verify source interface */ 419extern int ip6_sourcecheck_interval; /* Interval between log messages */ 420extern int ip6_accept_rtadv; /* deprecated */ 421extern int ip6_log_interval; 422extern time_t ip6_log_time; 423extern int ip6_hdrnestlimit; /* upper limit of # of extension headers */ 424extern int ip6_dad_count; /* DupAddrDetectionTransmits */ 425extern int ip6_only_allow_rfc4193_prefix; /* RFC4193 Unique Local Unicast Prefixes only */ 426 427extern u_int32_t ip6_flow_seq; 428extern int ip6_auto_flowlabel; 429extern int ip6_auto_linklocal; 430 431extern int ip6_anonportmin; /* minimum ephemeral port */ 432extern int ip6_anonportmax; /* maximum ephemeral port */ 433extern int ip6_lowportmin; /* minimum reserved port */ 434extern int ip6_lowportmax; /* maximum reserved port */ 435 436extern int ip6_use_tempaddr; /* whether to use temporary addresses. */ 437extern int ip6_prefer_tempaddr; /* whether to prefer temporary addresses 438 in the source address selection */ 439extern int ip6_use_defzone; /* whether to use the default scope zone 440 when unspecified */ 441 442extern struct pr_usrreqs rip6_usrreqs; 443extern struct pr_usrreqs icmp6_dgram_usrreqs; 444 445extern int ip6_doscopedroute; 446extern int ip6_restrictrecvif; 447 448struct sockopt; 449 450struct inpcb; 451 452int icmp6_ctloutput(struct socket *, struct sockopt *); 453int icmp6_dgram_ctloutput(struct socket *, struct sockopt *); 454int icmp6_dgram_send(struct socket *, int , struct mbuf *, struct sockaddr *, struct mbuf *, struct proc *); 455int icmp6_dgram_attach(struct socket *, int , struct proc *); 456 457 458struct in6_ifaddr; 459void ip6_init(void); 460void ip6_input(struct mbuf *); 461struct in6_ifaddr *ip6_getdstifaddr(struct mbuf *); 462void ip6_freepcbopts(struct ip6_pktopts *); 463int ip6_unknown_opt(u_int8_t *, struct mbuf *, int); 464char * ip6_get_prevhdr(struct mbuf *, int); 465int ip6_nexthdr(struct mbuf *, int, int, int *); 466int ip6_lasthdr(struct mbuf *, int, int, int *); 467 468extern void ip6_moptions_init(void); 469extern struct ip6_moptions *ip6_allocmoptions(int); 470extern void im6o_addref(struct ip6_moptions *, int); 471extern void im6o_remref(struct ip6_moptions *); 472 473struct ip6aux *ip6_addaux(struct mbuf *); 474struct ip6aux *ip6_findaux(struct mbuf *); 475void ip6_delaux(struct mbuf *); 476extern void ip6_destroyaux(struct ip6aux *); 477extern void ip6_copyaux(struct ip6aux *, struct ip6aux *); 478 479int ip6_mforward(struct ip6_hdr *, struct ifnet *, struct mbuf *); 480int ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *, 481 u_int32_t *); 482struct mbuf **ip6_savecontrol_v4(struct inpcb *, struct mbuf *, 483 struct mbuf **, int *); 484int ip6_savecontrol(struct inpcb *, struct mbuf *, struct mbuf **); 485struct mbuf *ip6_forward(struct mbuf *, struct route_in6 *, int); 486void ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *, 487 u_int32_t *)); 488void ip6_mloopback(struct ifnet *, struct mbuf *, struct sockaddr_in6 *); 489int ip6_output(struct mbuf *, struct ip6_pktopts *, struct route_in6 *, 490 int, struct ip6_moptions *, struct ifnet **, struct ip6_out_args *); 491int ip6_output_list(struct mbuf *, int, struct ip6_pktopts *, 492 struct route_in6 *, int, struct ip6_moptions *, struct ifnet **, 493 struct ip6_out_args *); 494int ip6_ctloutput(struct socket *, struct sockopt *sopt); 495void ip6_initpktopts(struct ip6_pktopts *); 496int ip6_setpktoptions(struct mbuf *, struct ip6_pktopts *, int, int); 497void ip6_clearpktopts(struct ip6_pktopts *, int); 498struct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int); 499int ip6_optlen(struct inpcb *); 500 501int route6_input(struct mbuf **, int *, int); 502 503void frag6_init(void); 504int frag6_input(struct mbuf **, int *, int); 505void frag6_slowtimo(void); 506void frag6_drain(void); 507 508int rip6_input(struct mbuf **, int *, int); 509void rip6_ctlinput(int, struct sockaddr *, void *); 510int rip6_ctloutput(struct socket *so, struct sockopt *sopt); 511int rip6_output(struct mbuf *, struct socket *, struct sockaddr_in6 *, struct mbuf *, int); 512 513int dest6_input(struct mbuf **, int *, int); 514extern struct in6_addr *in6_selectsrc(struct sockaddr_in6 *, 515 struct ip6_pktopts *, struct inpcb *, struct route_in6 *, 516 struct ifnet **, struct in6_addr *, unsigned int, int *); 517extern struct in6_addrpolicy * 518 in6_addrsel_lookup_policy(struct sockaddr_in6 *); 519int in6_selectroute(struct sockaddr_in6 *, struct sockaddr_in6 *, 520 struct ip6_pktopts *, struct ip6_moptions *, struct route_in6 *, 521 struct ifnet **, struct rtentry **, int, const struct ip6_out_args *); 522int ip6_setpktopts(struct mbuf *control, struct ip6_pktopts *opt, struct ip6_pktopts *stickyopt, int uproto); 523u_int32_t ip6_randomid(void); 524u_int32_t ip6_randomflowlabel(void); 525 526#endif /* KERNEL */ 527#endif /* KERNEL_PRIVATE */ 528 529#endif /* !_NETINET6_IP6_VAR_H_ */ 530