ip6_var.h revision 195699
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: head/sys/netinet6/ip6_var.h 195699 2009-07-14 22:48:30Z rwatson $ 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 { 18462587Sitojun u_quad_t ip6s_total; /* total packets received */ 18562587Sitojun u_quad_t ip6s_tooshort; /* packet too short */ 18662587Sitojun u_quad_t ip6s_toosmall; /* not enough data */ 18762587Sitojun u_quad_t ip6s_fragments; /* fragments received */ 18862587Sitojun u_quad_t ip6s_fragdropped; /* frags dropped(dups, out of space) */ 18962587Sitojun u_quad_t ip6s_fragtimeout; /* fragments timed out */ 19062587Sitojun u_quad_t ip6s_fragoverflow; /* fragments that exceeded limit */ 19162587Sitojun u_quad_t ip6s_forward; /* packets forwarded */ 19262587Sitojun u_quad_t ip6s_cantforward; /* packets rcvd for unreachable dest */ 19362587Sitojun u_quad_t ip6s_redirectsent; /* packets forwarded on same net */ 19462587Sitojun u_quad_t ip6s_delivered; /* datagrams delivered to upper level*/ 19562587Sitojun u_quad_t ip6s_localout; /* total ip packets generated here */ 19662587Sitojun u_quad_t ip6s_odropped; /* lost packets due to nobufs, etc. */ 19762587Sitojun u_quad_t ip6s_reassembled; /* total packets reassembled ok */ 198120913Sume u_quad_t ip6s_fragmented; /* datagrams successfully fragmented */ 19962587Sitojun u_quad_t ip6s_ofragments; /* output fragments created */ 20062587Sitojun u_quad_t ip6s_cantfrag; /* don't fragment flag was set, etc. */ 20162587Sitojun u_quad_t ip6s_badoptions; /* error in option processing */ 20262587Sitojun u_quad_t ip6s_noroute; /* packets discarded due to no route */ 20362587Sitojun u_quad_t ip6s_badvers; /* ip6 version != 6 */ 20462587Sitojun u_quad_t ip6s_rawout; /* total raw ip packets generated */ 20562587Sitojun u_quad_t ip6s_badscope; /* scope error */ 20662587Sitojun u_quad_t ip6s_notmember; /* don't join this multicast group */ 20762587Sitojun u_quad_t ip6s_nxthist[256]; /* next header history */ 20862587Sitojun u_quad_t ip6s_m1; /* one mbuf */ 20962587Sitojun u_quad_t ip6s_m2m[32]; /* two or more mbuf */ 21062587Sitojun u_quad_t ip6s_mext1; /* one ext mbuf */ 21162587Sitojun u_quad_t ip6s_mext2m; /* two or more ext mbuf */ 21262587Sitojun u_quad_t ip6s_exthdrtoolong; /* ext hdr are not continuous */ 21362587Sitojun u_quad_t ip6s_nogif; /* no match gif found */ 21462587Sitojun u_quad_t ip6s_toomanyhdr; /* discarded due to too many headers */ 21562587Sitojun 21662587Sitojun /* 21762587Sitojun * statistics for improvement of the source address selection 21862587Sitojun * algorithm: 21962587Sitojun * XXX: hardcoded 16 = # of ip6 multicast scope types + 1 22062587Sitojun */ 22162587Sitojun /* number of times that address selection fails */ 22262587Sitojun u_quad_t ip6s_sources_none; 22362587Sitojun /* number of times that an address on the outgoing I/F is chosen */ 22462587Sitojun u_quad_t ip6s_sources_sameif[16]; 22562587Sitojun /* number of times that an address on a non-outgoing I/F is chosen */ 22662587Sitojun u_quad_t ip6s_sources_otherif[16]; 22762587Sitojun /* 22862587Sitojun * number of times that an address that has the same scope 22962587Sitojun * from the destination is chosen. 23062587Sitojun */ 23162587Sitojun u_quad_t ip6s_sources_samescope[16]; 23262587Sitojun /* 23362587Sitojun * number of times that an address that has a different scope 23462587Sitojun * from the destination is chosen. 23562587Sitojun */ 23662587Sitojun u_quad_t ip6s_sources_otherscope[16]; 237108470Sschweikh /* number of times that a deprecated address is chosen */ 23862587Sitojun u_quad_t ip6s_sources_deprecated[16]; 23962587Sitojun 240122077Sume /* number of times that each rule of source selection is applied. */ 241122077Sume u_quad_t ip6s_sources_rule[16]; 24253541Sshin}; 24353541Sshin 24453541Sshin#ifdef _KERNEL 245191672Sbms#define IP6STAT_ADD(name, val) V_ip6stat.name += (val) 246191672Sbms#define IP6STAT_SUB(name, val) V_ip6stat.name -= (val) 247191672Sbms#define IP6STAT_INC(name) IP6STAT_ADD(name, 1) 248191672Sbms#define IP6STAT_DEC(name) IP6STAT_SUB(name, 1) 249191672Sbms#endif 250191672Sbms 251191672Sbms#ifdef _KERNEL 25278064Sume/* 25378064Sume * IPv6 onion peeling state. 25478064Sume * it will be initialized when we come into ip6_input(). 25578064Sume * XXX do not make it a kitchen sink! 25678064Sume */ 25778064Sumestruct ip6aux { 25878064Sume u_int32_t ip6a_flags; 25978064Sume#define IP6A_SWAP 0x01 /* swapped home/care-of on packet */ 26078064Sume#define IP6A_HASEEN 0x02 /* HA was present */ 26178064Sume#define IP6A_BRUID 0x04 /* BR Unique Identifier was present */ 26278064Sume#define IP6A_RTALERTSEEN 0x08 /* rtalert present */ 26378064Sume 26478064Sume /* ip6.ip6_src */ 26578064Sume struct in6_addr ip6a_careof; /* care-of address of the peer */ 26678064Sume struct in6_addr ip6a_home; /* home address of the peer */ 26778064Sume u_int16_t ip6a_bruid; /* BR unique identifier */ 26878064Sume 26978064Sume /* ip6.ip6_dst */ 27078064Sume struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */ 27178064Sume 27278064Sume /* rtalert */ 27378064Sume u_int16_t ip6a_rtalert; /* rtalert option value */ 27478064Sume 27578064Sume /* 27678064Sume * decapsulation history will be here. 27778064Sume * with IPsec it may not be accurate. 27878064Sume */ 27978064Sume}; 28078064Sume#endif 28178064Sume 28278064Sume#ifdef _KERNEL 28353541Sshin/* flags passed to ip6_output as last parameter */ 284151536Ssuz#define IPV6_UNSPECSRC 0x01 /* allow :: as the source address */ 28553541Sshin#define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */ 28662587Sitojun#define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */ 28753541Sshin 288147744Sthompsa#ifdef __NO_STRICT_ALIGNMENT 289147744Sthompsa#define IP6_HDR_ALIGNED_P(ip) 1 290147744Sthompsa#else 291147744Sthompsa#define IP6_HDR_ALIGNED_P(ip) ((((intptr_t) (ip)) & 3) == 0) 292147744Sthompsa#endif 293147744Sthompsa 294195699SrwatsonVNET_DECLARE(struct ip6stat, ip6stat); /* statistics */ 295195699SrwatsonVNET_DECLARE(int, ip6_defhlim); /* default hop limit */ 296195699SrwatsonVNET_DECLARE(int, ip6_defmcasthlim); /* default multicast hop limit */ 297195699SrwatsonVNET_DECLARE(int, ip6_forwarding); /* act as router? */ 298195699SrwatsonVNET_DECLARE(int, ip6_gif_hlim); /* Hop limit for gif encap packet */ 299195699SrwatsonVNET_DECLARE(int, ip6_use_deprecated); /* allow deprecated addr as source */ 300195699SrwatsonVNET_DECLARE(int, ip6_rr_prune); /* router renumbering prefix 30153541Sshin * walk list every 5 sec. */ 302195699SrwatsonVNET_DECLARE(int, ip6_mcast_pmtu); /* enable pMTU discovery for multicast? */ 303195699SrwatsonVNET_DECLARE(int, ip6_v6only); 304195699SrwatsonVNET_DECLARE(struct socket *, ip6_mrouter); /* multicast routing daemon */ 305195699SrwatsonVNET_DECLARE(int, ip6_sendredirects); /* send IP redirects when forwarding? */ 306195699SrwatsonVNET_DECLARE(int, ip6_maxfragpackets); /* Maximum packets in reassembly 307195699Srwatson * queue */ 308195699SrwatsonVNET_DECLARE(int, ip6_maxfrags); /* Maximum fragments in reassembly 309195699Srwatson * queue */ 310195699SrwatsonVNET_DECLARE(int, ip6_accept_rtadv); /* Acts as a host not a router */ 311195699SrwatsonVNET_DECLARE(int, ip6_keepfaith); /* Firewall Aided Internet Translator */ 312195699SrwatsonVNET_DECLARE(int, ip6_log_interval); 313195699SrwatsonVNET_DECLARE(time_t, ip6_log_time); 314195699SrwatsonVNET_DECLARE(int, ip6_hdrnestlimit); /* upper limit of # of extension 315195699Srwatson * headers */ 316195699SrwatsonVNET_DECLARE(int, ip6_dad_count); /* DupAddrDetectionTransmits */ 31753541Sshin 318195699SrwatsonVNET_DECLARE(int, ip6_auto_flowlabel); 319195699SrwatsonVNET_DECLARE(int, ip6_auto_linklocal); 32053541Sshin 321195699SrwatsonVNET_DECLARE(int, ip6_use_tempaddr); /* Whether to use temporary addresses */ 322195699SrwatsonVNET_DECLARE(int, ip6_prefer_tempaddr); /* Whether to prefer temporary 323195699Srwatson * addresses in the source address 324195699Srwatson * selection */ 32578064Sume 326186048Sbz#ifdef IPSTEALTH 327195699SrwatsonVNET_DECLARE(int, ip6stealth); 328186048Sbz#endif 329186048Sbz 330195699SrwatsonVNET_DECLARE(int, ip6_use_defzone); /* Whether to use the default scope 331195699Srwatson * zone when unspecified */ 332148385Sume 333195699Srwatson#define V_ip6stat VNET_GET(ip6stat) 334195699Srwatson#define V_ip6_defhlim VNET_GET(ip6_defhlim) 335195699Srwatson#define V_ip6_defmcasthlim VNET_GET(ip6_defmcasthlim) 336195699Srwatson#define V_ip6_forwarding VNET_GET(ip6_forwarding) 337195699Srwatson#define V_ip6_gif_hlim VNET_GET(ip6_gif_hlim) 338195699Srwatson#define V_ip6_use_deprecated VNET_GET(ip6_use_deprecated) 339195699Srwatson#define V_ip6_rr_prune VNET_GET(ip6_rr_prune) 340195699Srwatson#define V_ip6_mcast_pmtu VNET_GET(ip6_mcast_pmtu) 341195699Srwatson#define V_ip6_v6only VNET_GET(ip6_v6only) 342195699Srwatson#define V_ip6_mrouter VNET_GET(ip6_mrouter) 343195699Srwatson#define V_ip6_sendredirects VNET_GET(ip6_sendredirects) 344195699Srwatson#define V_ip6_maxfragpackets VNET_GET(ip6_maxfragpackets) 345195699Srwatson#define V_ip6_maxfrags VNET_GET(ip6_maxfrags) 346195699Srwatson#define V_ip6_accept_rtadv VNET_GET(ip6_accept_rtadv) 347195699Srwatson#define V_ip6_keepfaith VNET_GET(ip6_keepfaith) 348195699Srwatson#define V_ip6_log_interval VNET_GET(ip6_log_interval) 349195699Srwatson#define V_ip6_log_time VNET_GET(ip6_log_time) 350195699Srwatson#define V_ip6_hdrnestlimit VNET_GET(ip6_hdrnestlimit) 351195699Srwatson#define V_ip6_dad_count VNET_GET(ip6_dad_count) 352195699Srwatson#define V_ip6_auto_flowlabel VNET_GET(ip6_auto_flowlabel) 353195699Srwatson#define V_ip6_auto_linklocal VNET_GET(ip6_auto_linklocal) 354195699Srwatson#define V_ip6_use_tempaddr VNET_GET(ip6_use_tempaddr) 355195699Srwatson#define V_ip6_prefer_tempaddr VNET_GET(ip6_prefer_tempaddr) 356195699Srwatson#ifdef IPSTEALTH 357195699Srwatson#define V_ip6stealth VNET_GET(ip6stealth) 358195699Srwatson#endif 359195699Srwatson#define V_ip6_use_defzone VNET_GET(ip6_use_defzone) 360195699Srwatson 361134383Sandreextern struct pfil_head inet6_pfil_hook; /* packet filter hooks */ 362120386Ssam 36353541Sshinextern struct pr_usrreqs rip6_usrreqs; 36462587Sitojunstruct sockopt; 36553541Sshin 36662587Sitojunstruct inpcb; 36762587Sitojun 36853541Sshinint icmp6_ctloutput __P((struct socket *, struct sockopt *sopt)); 36953541Sshin 37078064Sumestruct in6_ifaddr; 37153541Sshinvoid ip6_init __P((void)); 372193731Szec#ifdef VIMAGE 373193731Szecvoid ip6_destroy __P((void)); 374193731Szec#endif 37553541Sshinvoid ip6_input __P((struct mbuf *)); 37678064Sumestruct in6_ifaddr *ip6_getdstifaddr __P((struct mbuf *)); 37778064Sumevoid ip6_freepcbopts __P((struct ip6_pktopts *)); 378191672Sbms 37953541Sshinint ip6_unknown_opt __P((u_int8_t *, struct mbuf *, int)); 38053541Sshinchar * ip6_get_prevhdr __P((struct mbuf *, int)); 38162587Sitojunint ip6_nexthdr __P((struct mbuf *, int, int, int *)); 38262587Sitojunint ip6_lasthdr __P((struct mbuf *, int, int, int *)); 38378064Sume 384121673Sumestruct ip6aux *ip6_addaux __P((struct mbuf *)); 385121673Sumestruct ip6aux *ip6_findaux __P((struct mbuf *)); 38678064Sumevoid ip6_delaux __P((struct mbuf *)); 38778064Sume 388166938Sbmsextern int (*ip6_mforward)(struct ip6_hdr *, struct ifnet *, 389166938Sbms struct mbuf *); 390166938Sbms 39153541Sshinint ip6_process_hopopts __P((struct mbuf *, u_int8_t *, int, u_int32_t *, 39253541Sshin u_int32_t *)); 393181782Sbzstruct mbuf **ip6_savecontrol_v4(struct inpcb *, struct mbuf *, 394181782Sbz struct mbuf **, int *); 395121674Sumevoid ip6_savecontrol __P((struct inpcb *, struct mbuf *, struct mbuf **)); 39678064Sumevoid ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *, 39778064Sume u_int32_t *)); 39853541Sshinint ip6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 39953541Sshin 40053541Sshinvoid ip6_forward __P((struct mbuf *, int)); 40153541Sshin 40253541Sshinvoid ip6_mloopback __P((struct ifnet *, struct mbuf *, struct sockaddr_in6 *)); 40353541Sshinint ip6_output __P((struct mbuf *, struct ip6_pktopts *, 40478064Sume struct route_in6 *, 40578064Sume int, 406105194Ssam struct ip6_moptions *, struct ifnet **, 407105194Ssam struct inpcb *)); 408120913Sumeint ip6_ctloutput __P((struct socket *, struct sockopt *)); 409121578Sumeint ip6_raw_ctloutput __P((struct socket *, struct sockopt *)); 410148242Sumevoid ip6_initpktopts __P((struct ip6_pktopts *)); 411148242Sumeint ip6_setpktopts __P((struct mbuf *, struct ip6_pktopts *, 412175630Sbz struct ip6_pktopts *, struct ucred *, int)); 413121472Sumevoid ip6_clearpktopts __P((struct ip6_pktopts *, int)); 41462587Sitojunstruct ip6_pktopts *ip6_copypktopts __P((struct ip6_pktopts *, int)); 41553541Sshinint ip6_optlen __P((struct inpcb *)); 41653541Sshin 41753541Sshinint route6_input __P((struct mbuf **, int *, int)); 41853541Sshin 41953541Sshinvoid frag6_init __P((void)); 42053541Sshinint frag6_input __P((struct mbuf **, int *, int)); 42153541Sshinvoid frag6_slowtimo __P((void)); 42253541Sshinvoid frag6_drain __P((void)); 42353541Sshin 42453541Sshinvoid rip6_init __P((void)); 425120913Sumeint rip6_input __P((struct mbuf **, int *, int)); 42662587Sitojunvoid rip6_ctlinput __P((int, struct sockaddr *, void *)); 427120913Sumeint rip6_ctloutput __P((struct socket *, struct sockopt *)); 42853541Sshinint rip6_output __P((struct mbuf *, ...)); 42953541Sshinint rip6_usrreq __P((struct socket *, 43083366Sjulian int, struct mbuf *, struct mbuf *, struct mbuf *, struct thread *)); 43153541Sshin 43253541Sshinint dest6_input __P((struct mbuf **, int *, int)); 43353541Sshinint none_input __P((struct mbuf **, int *, int)); 434120639Sume 435194777Sbzint in6_selectsrc(struct sockaddr_in6 *, struct ip6_pktopts *, 436180371Sbz struct inpcb *inp, struct route_in6 *, struct ucred *cred, 437194777Sbz struct ifnet **, struct in6_addr *); 438122077Sumeint in6_selectroute __P((struct sockaddr_in6 *, struct ip6_pktopts *, 439122077Sume struct ip6_moptions *, struct route_in6 *, struct ifnet **, 440186119Sqingli struct rtentry **)); 441120639Sumeu_int32_t ip6_randomid __P((void)); 442120649Sumeu_int32_t ip6_randomflowlabel __P((void)); 44353541Sshin#endif /* _KERNEL */ 44453541Sshin 44553541Sshin#endif /* !_NETINET6_IP6_VAR_H_ */ 446