ip6_var.h revision 284572
1139826Simp/*- 253541Sshin * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 353541Sshin * All rights reserved. 453541Sshin * 553541Sshin * Redistribution and use in source and binary forms, with or without 653541Sshin * modification, are permitted provided that the following conditions 753541Sshin * are met: 853541Sshin * 1. Redistributions of source code must retain the above copyright 953541Sshin * notice, this list of conditions and the following disclaimer. 1053541Sshin * 2. Redistributions in binary form must reproduce the above copyright 1153541Sshin * notice, this list of conditions and the following disclaimer in the 1253541Sshin * documentation and/or other materials provided with the distribution. 1353541Sshin * 3. Neither the name of the project nor the names of its contributors 1453541Sshin * may be used to endorse or promote products derived from this software 1553541Sshin * without specific prior written permission. 1653541Sshin * 1753541Sshin * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 1853541Sshin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1953541Sshin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2053541Sshin * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 2153541Sshin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2253541Sshin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2353541Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2453541Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2553541Sshin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2653541Sshin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2753541Sshin * SUCH DAMAGE. 28174510Sobrien * 29174510Sobrien * $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ 3053541Sshin */ 3153541Sshin 32139826Simp/*- 3353541Sshin * Copyright (c) 1982, 1986, 1993 3453541Sshin * The Regents of the University of California. All rights reserved. 3553541Sshin * 3653541Sshin * Redistribution and use in source and binary forms, with or without 3753541Sshin * modification, are permitted provided that the following conditions 3853541Sshin * are met: 3953541Sshin * 1. Redistributions of source code must retain the above copyright 4053541Sshin * notice, this list of conditions and the following disclaimer. 4153541Sshin * 2. Redistributions in binary form must reproduce the above copyright 4253541Sshin * notice, this list of conditions and the following disclaimer in the 4353541Sshin * documentation and/or other materials provided with the distribution. 4453541Sshin * 4. Neither the name of the University nor the names of its contributors 4553541Sshin * may be used to endorse or promote products derived from this software 4653541Sshin * without specific prior written permission. 4753541Sshin * 4853541Sshin * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 4953541Sshin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 5053541Sshin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 5153541Sshin * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 5253541Sshin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 5353541Sshin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 5453541Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 5553541Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 5653541Sshin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5753541Sshin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5853541Sshin * SUCH DAMAGE. 5953541Sshin * 6053541Sshin * @(#)ip_var.h 8.1 (Berkeley) 6/10/93 61174510Sobrien * $FreeBSD: stable/10/sys/netinet6/ip6_var.h 284572 2015-06-18 20:40:36Z kp $ 6253541Sshin */ 6353541Sshin 6453541Sshin#ifndef _NETINET6_IP6_VAR_H_ 6553541Sshin#define _NETINET6_IP6_VAR_H_ 6653541Sshin 6753541Sshin/* 6853541Sshin * IP6 reassembly queue structure. Each fragment 6953541Sshin * being reassembled is attached to one of these structures. 7053541Sshin */ 7153541Sshinstruct ip6q { 7262587Sitojun struct ip6asfrag *ip6q_down; 7362587Sitojun struct ip6asfrag *ip6q_up; 7462587Sitojun u_int32_t ip6q_ident; 75170275Sjinmei u_int8_t ip6q_nxt; 76170275Sjinmei u_int8_t ip6q_ecn; 7762587Sitojun u_int8_t ip6q_ttl; 78170275Sjinmei struct in6_addr ip6q_src, ip6q_dst; 7962587Sitojun struct ip6q *ip6q_next; 8062587Sitojun struct ip6q *ip6q_prev; 8162587Sitojun int ip6q_unfrglen; /* len of unfragmentable part */ 8262587Sitojun#ifdef notyet 8362587Sitojun u_char *ip6q_nxtp; 8462587Sitojun#endif 85121345Sume int ip6q_nfrag; /* # of fragments */ 86184307Srwatson struct label *ip6q_label; 8753541Sshin}; 8853541Sshin 8953541Sshinstruct ip6asfrag { 9062587Sitojun struct ip6asfrag *ip6af_down; 9162587Sitojun struct ip6asfrag *ip6af_up; 9262587Sitojun struct mbuf *ip6af_m; 9362587Sitojun int ip6af_offset; /* offset in ip6af_m to next header */ 9462587Sitojun int ip6af_frglen; /* fragmentable part length */ 9562587Sitojun int ip6af_off; /* fragment offset */ 9662587Sitojun u_int16_t ip6af_mff; /* more fragment bit in frag off */ 9753541Sshin}; 9853541Sshin 9953541Sshin#define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m)) 10053541Sshin 101191672Sbms/* 102191672Sbms * Structure attached to inpcb.in6p_moptions and 103191672Sbms * passed to ip6_output when IPv6 multicast options are in use. 104191672Sbms * This structure is lazy-allocated. 105191672Sbms */ 106191672Sbmsstruct ip6_moptions { 10753541Sshin struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */ 10853541Sshin u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */ 10953541Sshin u_char im6o_multicast_loop; /* 1 >= hear sends if a member */ 110191672Sbms u_short im6o_num_memberships; /* no. memberships this socket */ 111191672Sbms u_short im6o_max_memberships; /* max memberships this socket */ 112191672Sbms struct in6_multi **im6o_membership; /* group memberships */ 113191672Sbms struct in6_mfilter *im6o_mfilters; /* source filters */ 11453541Sshin}; 11553541Sshin 11653541Sshin/* 11753541Sshin * Control options for outgoing packets 11853541Sshin */ 11953541Sshin 12053541Sshin/* Routing header related info */ 12153541Sshinstruct ip6po_rhinfo { 12253541Sshin struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */ 12353541Sshin struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */ 12453541Sshin}; 12562587Sitojun#define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr 12662587Sitojun#define ip6po_route ip6po_rhinfo.ip6po_rhi_route 12753541Sshin 128121472Sume/* Nexthop related info */ 129121472Sumestruct ip6po_nhinfo { 130121472Sume struct sockaddr *ip6po_nhi_nexthop; 131121472Sume struct route_in6 ip6po_nhi_route; /* Route to the nexthop */ 132121472Sume}; 133121472Sume#define ip6po_nexthop ip6po_nhinfo.ip6po_nhi_nexthop 134121472Sume#define ip6po_nextroute ip6po_nhinfo.ip6po_nhi_route 135121472Sume 13653541Sshinstruct ip6_pktopts { 13753541Sshin struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */ 13878064Sume int ip6po_hlim; /* Hoplimit for outgoing packets */ 13978064Sume 14078064Sume /* Outgoing IF/address information */ 14178064Sume struct in6_pktinfo *ip6po_pktinfo; 14278064Sume 143121472Sume /* Next-hop address information */ 144121472Sume struct ip6po_nhinfo ip6po_nhinfo; 145121472Sume 14653541Sshin struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */ 14778064Sume 14878064Sume /* Destination options header (before a routing header) */ 14978064Sume struct ip6_dest *ip6po_dest1; 15078064Sume 15178064Sume /* Routing header related info. */ 15278064Sume struct ip6po_rhinfo ip6po_rhinfo; 15378064Sume 15478064Sume /* Destination options header (after a routing header) */ 15578064Sume struct ip6_dest *ip6po_dest2; 156121472Sume 157121472Sume int ip6po_tclass; /* traffic class */ 158121472Sume 159121472Sume int ip6po_minmtu; /* fragment vs PMTU discovery policy */ 160121472Sume#define IP6PO_MINMTU_MCASTONLY -1 /* default; send at min MTU for multicast*/ 161121472Sume#define IP6PO_MINMTU_DISABLE 0 /* always perform pmtu disc */ 162121472Sume#define IP6PO_MINMTU_ALL 1 /* always send at min MTU */ 163121472Sume 164121472Sume int ip6po_prefer_tempaddr; /* whether temporary addresses are 165121472Sume preferred as source address */ 166121472Sume#define IP6PO_TEMPADDR_SYSTEM -1 /* follow the system default */ 167121472Sume#define IP6PO_TEMPADDR_NOTPREFER 0 /* not prefer temporary address */ 168121472Sume#define IP6PO_TEMPADDR_PREFER 1 /* prefer temporary address */ 169121472Sume 170121472Sume int ip6po_flags; 171121472Sume#if 0 /* parameters in this block is obsolete. do not reuse the values. */ 172121472Sume#define IP6PO_REACHCONF 0x01 /* upper-layer reachability confirmation. */ 173121472Sume#define IP6PO_MINMTU 0x02 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 174121472Sume#endif 175121472Sume#define IP6PO_DONTFRAG 0x04 /* disable fragmentation (IPV6_DONTFRAG) */ 176121472Sume#define IP6PO_USECOA 0x08 /* use care of address */ 17753541Sshin}; 17853541Sshin 17978064Sume/* 18078064Sume * Control options for incoming packets 18178064Sume */ 18278064Sume 18353541Sshinstruct ip6stat { 184253081Sae uint64_t ip6s_total; /* total packets received */ 185253081Sae uint64_t ip6s_tooshort; /* packet too short */ 186253081Sae uint64_t ip6s_toosmall; /* not enough data */ 187253081Sae uint64_t ip6s_fragments; /* fragments received */ 188253081Sae uint64_t ip6s_fragdropped; /* frags dropped(dups, out of space) */ 189253081Sae uint64_t ip6s_fragtimeout; /* fragments timed out */ 190253081Sae uint64_t ip6s_fragoverflow; /* fragments that exceeded limit */ 191253081Sae uint64_t ip6s_forward; /* packets forwarded */ 192253081Sae uint64_t ip6s_cantforward; /* packets rcvd for unreachable dest */ 193253081Sae uint64_t ip6s_redirectsent; /* packets forwarded on same net */ 194253081Sae uint64_t ip6s_delivered; /* datagrams delivered to upper level*/ 195253081Sae uint64_t ip6s_localout; /* total ip packets generated here */ 196253081Sae uint64_t ip6s_odropped; /* lost packets due to nobufs, etc. */ 197253081Sae uint64_t ip6s_reassembled; /* total packets reassembled ok */ 198253081Sae uint64_t ip6s_fragmented; /* datagrams successfully fragmented */ 199253081Sae uint64_t ip6s_ofragments; /* output fragments created */ 200253081Sae uint64_t ip6s_cantfrag; /* don't fragment flag was set, etc. */ 201253081Sae uint64_t ip6s_badoptions; /* error in option processing */ 202253081Sae uint64_t ip6s_noroute; /* packets discarded due to no route */ 203253081Sae uint64_t ip6s_badvers; /* ip6 version != 6 */ 204253081Sae uint64_t ip6s_rawout; /* total raw ip packets generated */ 205253081Sae uint64_t ip6s_badscope; /* scope error */ 206253081Sae uint64_t ip6s_notmember; /* don't join this multicast group */ 207249543Sae#define IP6S_HDRCNT 256 /* headers count */ 208253081Sae uint64_t ip6s_nxthist[IP6S_HDRCNT]; /* next header history */ 209253081Sae uint64_t ip6s_m1; /* one mbuf */ 210249543Sae#define IP6S_M2MMAX 32 211253081Sae uint64_t ip6s_m2m[IP6S_M2MMAX]; /* two or more mbuf */ 212253081Sae uint64_t ip6s_mext1; /* one ext mbuf */ 213253081Sae uint64_t ip6s_mext2m; /* two or more ext mbuf */ 214253081Sae uint64_t ip6s_exthdrtoolong; /* ext hdr are not contiguous */ 215253081Sae uint64_t ip6s_nogif; /* no match gif found */ 216253081Sae uint64_t ip6s_toomanyhdr; /* discarded due to too many headers */ 21762587Sitojun 21862587Sitojun /* 21962587Sitojun * statistics for improvement of the source address selection 22062587Sitojun * algorithm: 22162587Sitojun * XXX: hardcoded 16 = # of ip6 multicast scope types + 1 22262587Sitojun */ 223249543Sae#define IP6S_RULESMAX 16 224249543Sae#define IP6S_SCOPECNT 16 22562587Sitojun /* number of times that address selection fails */ 226253081Sae uint64_t ip6s_sources_none; 22762587Sitojun /* number of times that an address on the outgoing I/F is chosen */ 228253081Sae uint64_t ip6s_sources_sameif[IP6S_SCOPECNT]; 22962587Sitojun /* number of times that an address on a non-outgoing I/F is chosen */ 230253081Sae uint64_t ip6s_sources_otherif[IP6S_SCOPECNT]; 23162587Sitojun /* 23262587Sitojun * number of times that an address that has the same scope 23362587Sitojun * from the destination is chosen. 23462587Sitojun */ 235253081Sae uint64_t ip6s_sources_samescope[IP6S_SCOPECNT]; 23662587Sitojun /* 23762587Sitojun * number of times that an address that has a different scope 23862587Sitojun * from the destination is chosen. 23962587Sitojun */ 240253081Sae uint64_t ip6s_sources_otherscope[IP6S_SCOPECNT]; 241108470Sschweikh /* number of times that a deprecated address is chosen */ 242253081Sae uint64_t ip6s_sources_deprecated[IP6S_SCOPECNT]; 24362587Sitojun 244122077Sume /* number of times that each rule of source selection is applied. */ 245253081Sae uint64_t ip6s_sources_rule[IP6S_RULESMAX]; 24653541Sshin}; 24753541Sshin 24853541Sshin#ifdef _KERNEL 249253085Sae#include <sys/counter.h> 250253085Sae 251253085SaeVNET_PCPUSTAT_DECLARE(struct ip6stat, ip6stat); 252253085Sae#define IP6STAT_ADD(name, val) \ 253253085Sae VNET_PCPUSTAT_ADD(struct ip6stat, ip6stat, name, (val)) 254253085Sae#define IP6STAT_SUB(name, val) IP6STAT_ADD(name, -(val)) 255191672Sbms#define IP6STAT_INC(name) IP6STAT_ADD(name, 1) 256191672Sbms#define IP6STAT_DEC(name) IP6STAT_SUB(name, 1) 257191672Sbms#endif 258191672Sbms 259191672Sbms#ifdef _KERNEL 26078064Sume/* 26178064Sume * IPv6 onion peeling state. 26278064Sume * it will be initialized when we come into ip6_input(). 26378064Sume * XXX do not make it a kitchen sink! 26478064Sume */ 26578064Sumestruct ip6aux { 26678064Sume u_int32_t ip6a_flags; 26778064Sume#define IP6A_SWAP 0x01 /* swapped home/care-of on packet */ 26878064Sume#define IP6A_HASEEN 0x02 /* HA was present */ 26978064Sume#define IP6A_BRUID 0x04 /* BR Unique Identifier was present */ 27078064Sume#define IP6A_RTALERTSEEN 0x08 /* rtalert present */ 27178064Sume 27278064Sume /* ip6.ip6_src */ 27378064Sume struct in6_addr ip6a_careof; /* care-of address of the peer */ 27478064Sume struct in6_addr ip6a_home; /* home address of the peer */ 27578064Sume u_int16_t ip6a_bruid; /* BR unique identifier */ 27678064Sume 27778064Sume /* ip6.ip6_dst */ 27878064Sume struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */ 27978064Sume 28078064Sume /* rtalert */ 28178064Sume u_int16_t ip6a_rtalert; /* rtalert option value */ 28278064Sume 28378064Sume /* 28478064Sume * decapsulation history will be here. 28578064Sume * with IPsec it may not be accurate. 28678064Sume */ 28778064Sume}; 28878064Sume#endif 28978064Sume 29078064Sume#ifdef _KERNEL 29153541Sshin/* flags passed to ip6_output as last parameter */ 292151536Ssuz#define IPV6_UNSPECSRC 0x01 /* allow :: as the source address */ 29353541Sshin#define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */ 29462587Sitojun#define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 29553541Sshin 296147744Sthompsa#ifdef __NO_STRICT_ALIGNMENT 297147744Sthompsa#define IP6_HDR_ALIGNED_P(ip) 1 298147744Sthompsa#else 299147744Sthompsa#define IP6_HDR_ALIGNED_P(ip) ((((intptr_t) (ip)) & 3) == 0) 300147744Sthompsa#endif 301147744Sthompsa 302195699SrwatsonVNET_DECLARE(int, ip6_defhlim); /* default hop limit */ 303195699SrwatsonVNET_DECLARE(int, ip6_defmcasthlim); /* default multicast hop limit */ 304195699SrwatsonVNET_DECLARE(int, ip6_forwarding); /* act as router? */ 305195699SrwatsonVNET_DECLARE(int, ip6_use_deprecated); /* allow deprecated addr as source */ 306195699SrwatsonVNET_DECLARE(int, ip6_rr_prune); /* router renumbering prefix 30753541Sshin * walk list every 5 sec. */ 308195699SrwatsonVNET_DECLARE(int, ip6_mcast_pmtu); /* enable pMTU discovery for multicast? */ 309195699SrwatsonVNET_DECLARE(int, ip6_v6only); 310207369Sbz#define V_ip6_defhlim VNET(ip6_defhlim) 311207369Sbz#define V_ip6_defmcasthlim VNET(ip6_defmcasthlim) 312207369Sbz#define V_ip6_forwarding VNET(ip6_forwarding) 313207369Sbz#define V_ip6_use_deprecated VNET(ip6_use_deprecated) 314207369Sbz#define V_ip6_rr_prune VNET(ip6_rr_prune) 315207369Sbz#define V_ip6_mcast_pmtu VNET(ip6_mcast_pmtu) 316207369Sbz#define V_ip6_v6only VNET(ip6_v6only) 317207369Sbz 318195699SrwatsonVNET_DECLARE(struct socket *, ip6_mrouter); /* multicast routing daemon */ 319195699SrwatsonVNET_DECLARE(int, ip6_sendredirects); /* send IP redirects when forwarding? */ 320195699SrwatsonVNET_DECLARE(int, ip6_maxfragpackets); /* Maximum packets in reassembly 321195699Srwatson * queue */ 322195699SrwatsonVNET_DECLARE(int, ip6_maxfrags); /* Maximum fragments in reassembly 323195699Srwatson * queue */ 324195699SrwatsonVNET_DECLARE(int, ip6_accept_rtadv); /* Acts as a host not a router */ 325222728ShrsVNET_DECLARE(int, ip6_no_radr); /* No defroute from RA */ 326222728ShrsVNET_DECLARE(int, ip6_norbit_raif); /* Disable R-bit in NA on RA 327222728Shrs * receiving IF. */ 328225521ShrsVNET_DECLARE(int, ip6_rfc6204w3); /* Accept defroute from RA even when 329225521Shrs forwarding enabled */ 330195699SrwatsonVNET_DECLARE(int, ip6_keepfaith); /* Firewall Aided Internet Translator */ 331195699SrwatsonVNET_DECLARE(int, ip6_log_interval); 332195699SrwatsonVNET_DECLARE(time_t, ip6_log_time); 333195699SrwatsonVNET_DECLARE(int, ip6_hdrnestlimit); /* upper limit of # of extension 334195699Srwatson * headers */ 335195699SrwatsonVNET_DECLARE(int, ip6_dad_count); /* DupAddrDetectionTransmits */ 336195727Srwatson#define V_ip6_mrouter VNET(ip6_mrouter) 337195727Srwatson#define V_ip6_sendredirects VNET(ip6_sendredirects) 338195727Srwatson#define V_ip6_maxfragpackets VNET(ip6_maxfragpackets) 339195727Srwatson#define V_ip6_maxfrags VNET(ip6_maxfrags) 340195727Srwatson#define V_ip6_accept_rtadv VNET(ip6_accept_rtadv) 341222728Shrs#define V_ip6_no_radr VNET(ip6_no_radr) 342222728Shrs#define V_ip6_norbit_raif VNET(ip6_norbit_raif) 343225521Shrs#define V_ip6_rfc6204w3 VNET(ip6_rfc6204w3) 344195727Srwatson#define V_ip6_keepfaith VNET(ip6_keepfaith) 345195727Srwatson#define V_ip6_log_interval VNET(ip6_log_interval) 346195727Srwatson#define V_ip6_log_time VNET(ip6_log_time) 347195727Srwatson#define V_ip6_hdrnestlimit VNET(ip6_hdrnestlimit) 348195727Srwatson#define V_ip6_dad_count VNET(ip6_dad_count) 349207369Sbz 350207369SbzVNET_DECLARE(int, ip6_auto_flowlabel); 351207369SbzVNET_DECLARE(int, ip6_auto_linklocal); 352195727Srwatson#define V_ip6_auto_flowlabel VNET(ip6_auto_flowlabel) 353195727Srwatson#define V_ip6_auto_linklocal VNET(ip6_auto_linklocal) 354207369Sbz 355207369SbzVNET_DECLARE(int, ip6_use_tempaddr); /* Whether to use temporary addresses */ 356207369SbzVNET_DECLARE(int, ip6_prefer_tempaddr); /* Whether to prefer temporary 357207369Sbz * addresses in the source address 358207369Sbz * selection */ 359195727Srwatson#define V_ip6_use_tempaddr VNET(ip6_use_tempaddr) 360195727Srwatson#define V_ip6_prefer_tempaddr VNET(ip6_prefer_tempaddr) 361207369Sbz 362207369SbzVNET_DECLARE(int, ip6_use_defzone); /* Whether to use the default scope 363207369Sbz * zone when unspecified */ 364195727Srwatson#define V_ip6_use_defzone VNET(ip6_use_defzone) 365195699Srwatson 366197952SjulianVNET_DECLARE (struct pfil_head, inet6_pfil_hook); /* packet filter hooks */ 367197952Sjulian#define V_inet6_pfil_hook VNET(inet6_pfil_hook) 368207369Sbz#ifdef IPSTEALTH 369207369SbzVNET_DECLARE(int, ip6stealth); 370207369Sbz#define V_ip6stealth VNET(ip6stealth) 371207369Sbz#endif 372120386Ssam 37353541Sshinextern struct pr_usrreqs rip6_usrreqs; 37462587Sitojunstruct sockopt; 37553541Sshin 37662587Sitojunstruct inpcb; 37762587Sitojun 378241916Sdelphijint icmp6_ctloutput(struct socket *, struct sockopt *sopt); 37953541Sshin 38078064Sumestruct in6_ifaddr; 381241916Sdelphijvoid ip6_init(void); 382193731Szec#ifdef VIMAGE 383241916Sdelphijvoid ip6_destroy(void); 384193731Szec#endif 385212155Sbzint ip6proto_register(short); 386212155Sbzint ip6proto_unregister(short); 387212155Sbz 388241916Sdelphijvoid ip6_input(struct mbuf *); 389241916Sdelphijstruct in6_ifaddr *ip6_getdstifaddr(struct mbuf *); 390241916Sdelphijvoid ip6_freepcbopts(struct ip6_pktopts *); 391191672Sbms 392241916Sdelphijint ip6_unknown_opt(u_int8_t *, struct mbuf *, int); 393241916Sdelphijchar * ip6_get_prevhdr(struct mbuf *, int); 394241916Sdelphijint ip6_nexthdr(struct mbuf *, int, int, int *); 395241916Sdelphijint ip6_lasthdr(struct mbuf *, int, int, int *); 39678064Sume 397235956Sbz#ifdef __notyet__ 398241916Sdelphijstruct ip6aux *ip6_findaux(struct mbuf *); 399235956Sbz#endif 40078064Sume 401166938Sbmsextern int (*ip6_mforward)(struct ip6_hdr *, struct ifnet *, 402166938Sbms struct mbuf *); 403166938Sbms 404241916Sdelphijint ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *, 405241916Sdelphij u_int32_t *); 406181782Sbzstruct mbuf **ip6_savecontrol_v4(struct inpcb *, struct mbuf *, 407181782Sbz struct mbuf **, int *); 408241916Sdelphijvoid ip6_savecontrol(struct inpcb *, struct mbuf *, struct mbuf **); 409279911Saevoid ip6_notify_pmtu(struct inpcb *, struct sockaddr_in6 *, u_int32_t); 410241916Sdelphijint ip6_sysctl(int *, u_int, void *, size_t *, void *, size_t); 41153541Sshin 412241916Sdelphijvoid ip6_forward(struct mbuf *, int); 41353541Sshin 414241916Sdelphijvoid ip6_mloopback(struct ifnet *, struct mbuf *, struct sockaddr_in6 *); 415241916Sdelphijint ip6_output(struct mbuf *, struct ip6_pktopts *, 41678064Sume struct route_in6 *, 41778064Sume int, 418105194Ssam struct ip6_moptions *, struct ifnet **, 419241916Sdelphij struct inpcb *); 420241916Sdelphijint ip6_ctloutput(struct socket *, struct sockopt *); 421241916Sdelphijint ip6_raw_ctloutput(struct socket *, struct sockopt *); 422241916Sdelphijvoid ip6_initpktopts(struct ip6_pktopts *); 423241916Sdelphijint ip6_setpktopts(struct mbuf *, struct ip6_pktopts *, 424241916Sdelphij struct ip6_pktopts *, struct ucred *, int); 425241916Sdelphijvoid ip6_clearpktopts(struct ip6_pktopts *, int); 426241916Sdelphijstruct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int); 427241916Sdelphijint ip6_optlen(struct inpcb *); 428284568Skpint ip6_deletefraghdr(struct mbuf *, int, int); 429284572Skpint ip6_fragment(struct ifnet *, struct mbuf *, int, u_char, int, 430284572Skp uint32_t); 43153541Sshin 432241916Sdelphijint route6_input(struct mbuf **, int *, int); 43353541Sshin 434241916Sdelphijvoid frag6_init(void); 435241916Sdelphijint frag6_input(struct mbuf **, int *, int); 436241916Sdelphijvoid frag6_slowtimo(void); 437241916Sdelphijvoid frag6_drain(void); 43853541Sshin 439241916Sdelphijvoid rip6_init(void); 440241916Sdelphijint rip6_input(struct mbuf **, int *, int); 441241916Sdelphijvoid rip6_ctlinput(int, struct sockaddr *, void *); 442241916Sdelphijint rip6_ctloutput(struct socket *, struct sockopt *); 443241916Sdelphijint rip6_output(struct mbuf *, ...); 444241916Sdelphijint rip6_usrreq(struct socket *, 445241916Sdelphij int, struct mbuf *, struct mbuf *, struct mbuf *, struct thread *); 44653541Sshin 447241916Sdelphijint dest6_input(struct mbuf **, int *, int); 448241916Sdelphijint none_input(struct mbuf **, int *, int); 449120639Sume 450194777Sbzint in6_selectsrc(struct sockaddr_in6 *, struct ip6_pktopts *, 451180371Sbz struct inpcb *inp, struct route_in6 *, struct ucred *cred, 452194777Sbz struct ifnet **, struct in6_addr *); 453241916Sdelphijint in6_selectroute(struct sockaddr_in6 *, struct ip6_pktopts *, 454122077Sume struct ip6_moptions *, struct route_in6 *, struct ifnet **, 455241916Sdelphij struct rtentry **); 456231852Sbzint in6_selectroute_fib(struct sockaddr_in6 *, struct ip6_pktopts *, 457231852Sbz struct ip6_moptions *, struct route_in6 *, struct ifnet **, 458232127Sbz struct rtentry **, u_int); 459241916Sdelphiju_int32_t ip6_randomid(void); 460241916Sdelphiju_int32_t ip6_randomflowlabel(void); 461274132Saevoid in6_delayed_cksum(struct mbuf *m, uint32_t plen, u_short offset); 46253541Sshin#endif /* _KERNEL */ 46353541Sshin 46453541Sshin#endif /* !_NETINET6_IP6_VAR_H_ */ 465