in6_var.h revision 194971
1112694Stegge/*- 2112694Stegge * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3112694Stegge * All rights reserved. 4112694Stegge * 5112694Stegge * Redistribution and use in source and binary forms, with or without 6112694Stegge * modification, are permitted provided that the following conditions 7112694Stegge * are met: 8112694Stegge * 1. Redistributions of source code must retain the above copyright 9112694Stegge * notice, this list of conditions and the following disclaimer. 10112694Stegge * 2. Redistributions in binary form must reproduce the above copyright 11112694Stegge * notice, this list of conditions and the following disclaimer in the 12112694Stegge * documentation and/or other materials provided with the distribution. 13112694Stegge * 3. Neither the name of the project nor the names of its contributors 14112694Stegge * may be used to endorse or promote products derived from this software 15112694Stegge * without specific prior written permission. 16112694Stegge * 17112694Stegge * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18112694Stegge * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19112694Stegge * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20112694Stegge * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21112694Stegge * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22112694Stegge * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23112694Stegge * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24112694Stegge * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25112694Stegge * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26112694Stegge * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27116192Sobrien * SUCH DAMAGE. 28116192Sobrien * 29116192Sobrien * $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ 30112694Stegge */ 31112694Stegge 32112694Stegge/*- 33112694Stegge * Copyright (c) 1985, 1986, 1993 34112694Stegge * The Regents of the University of California. All rights reserved. 35112694Stegge * 36114216Skan * Redistribution and use in source and binary forms, with or without 37112694Stegge * modification, are permitted provided that the following conditions 38112694Stegge * are met: 39112694Stegge * 1. Redistributions of source code must retain the above copyright 40112694Stegge * notice, this list of conditions and the following disclaimer. 41112694Stegge * 2. Redistributions in binary form must reproduce the above copyright 42112694Stegge * notice, this list of conditions and the following disclaimer in the 43112694Stegge * documentation and/or other materials provided with the distribution. 44112694Stegge * 4. Neither the name of the University nor the names of its contributors 45248084Sattilio * may be used to endorse or promote products derived from this software 46118986Salc * without specific prior written permission. 47112694Stegge * 48112694Stegge * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49118986Salc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50119088Salc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51112694Stegge * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52141522Sphk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53112694Stegge * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54112694Stegge * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55112694Stegge * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56112694Stegge * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57112694Stegge * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58112694Stegge * SUCH DAMAGE. 59112694Stegge * 60112694Stegge * @(#)in_var.h 8.1 (Berkeley) 6/10/93 61112694Stegge * $FreeBSD: head/sys/netinet6/in6_var.h 194971 2009-06-25 16:35:28Z rwatson $ 62112694Stegge */ 63112694Stegge 64112694Stegge#ifndef _NETINET6_IN6_VAR_H_ 65112694Stegge#define _NETINET6_IN6_VAR_H_ 66112694Stegge 67112694Stegge#include <sys/tree.h> 68112694Stegge 69112694Stegge#ifdef _KERNEL 70176559Sattilio#include <sys/libkern.h> 71112694Stegge#endif 72112694Stegge 73112694Stegge/* 74112694Stegge * Interface address, Internet version. One of these structures 75112694Stegge * is allocated for each interface with an Internet address. 76112694Stegge * The ifaddr structure contains the protocol-independent part 77112694Stegge * of the structure and is assumed to be first. 78112694Stegge */ 79112694Stegge 80112694Stegge/* 81112694Stegge * pltime/vltime are just for future reference (required to implements 2 82112694Stegge * hour rule for hosts). they should never be modified by nd6_timeout or 83112694Stegge * anywhere else. 84112694Stegge * userland -> kernel: accept pltime/vltime 85112694Stegge * kernel -> userland: throw up everything 86112694Stegge * in kernel: modify preferred/expire only 87112694Stegge */ 88267494Skibstruct in6_addrlifetime { 89267494Skib time_t ia6t_expire; /* valid lifetime expiration time */ 90267494Skib time_t ia6t_preferred; /* preferred lifetime expiration time */ 91112694Stegge u_int32_t ia6t_vltime; /* valid lifetime */ 92112694Stegge u_int32_t ia6t_pltime; /* prefix lifetime */ 93112694Stegge}; 94267494Skib 95112694Steggestruct nd_ifinfo; 96112694Steggestruct scope6_id; 97176559Sattiliostruct lltable; 98112694Steggestruct mld_ifinfo; 99112694Stegge 100112694Steggestruct in6_ifextra { 101136943Sphk struct in6_ifstat *in6_ifstat; 102156225Stegge struct icmp6_ifstat *icmp6_ifstat; 103200770Skib struct nd_ifinfo *nd_ifinfo; 104112694Stegge struct scope6_id *scope6_id; 105112694Stegge struct lltable *lltable; 106177493Sjeff struct mld_ifinfo *mld_ifinfo; 107177493Sjeff}; 108112694Stegge 109136943Sphk#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) 110136968Sphk 111200770Skibstruct in6_ifaddr { 112200770Skib struct ifaddr ia_ifa; /* protocol-independent info */ 113112694Stegge#define ia_ifp ia_ifa.ifa_ifp 114177493Sjeff#define ia_flags ia_ifa.ifa_flags 115112694Stegge struct sockaddr_in6 ia_addr; /* interface address */ 116156225Stegge struct sockaddr_in6 ia_net; /* network number of interface */ 117176559Sattilio struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 118156225Stegge struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 119156225Stegge u_int32_t ia_plen; /* prefix length */ 120156225Stegge TAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */ 121175294Sattilio int ia6_flags; 122156225Stegge 123175294Sattilio struct in6_addrlifetime ia6_lifetime; 124176559Sattilio time_t ia6_createtime; /* the creation time of this address, which is 125112694Stegge * currently used for temporary addresses only. 126112694Stegge */ 127175294Sattilio time_t ia6_updatetime; 128112694Stegge 129112694Stegge /* back pointer to the ND prefix (for autoconfigured addresses only) */ 130112694Stegge struct nd_prefix *ia6_ndpr; 131112694Stegge 132158325Stegge /* multicast addresses joined from the kernel */ 133158325Stegge LIST_HEAD(, in6_multi_mship) ia6_memberships; 134158325Stegge}; 135158325Stegge 136158325Stegge/* List of in6_ifaddr's. */ 137175294SattilioTAILQ_HEAD(in6_ifaddrhead, in6_ifaddr); 138158325Stegge 139158325Stegge/* control structure to manage address selection policy */ 140158325Steggestruct in6_addrpolicy { 141112694Stegge struct sockaddr_in6 addr; /* prefix address */ 142200770Skib struct sockaddr_in6 addrmask; /* prefix mask */ 143200770Skib int preced; /* precedence */ 144112694Stegge int label; /* matching label */ 145248084Sattilio u_quad_t use; /* statistics */ 146200770Skib}; 147248084Sattilio 148177493Sjeff/* 149177493Sjeff * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 150112694Stegge */ 151112694Steggestruct in6_ifstat { 152177493Sjeff u_quad_t ifs6_in_receive; /* # of total input datagram */ 153136943Sphk u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 154136943Sphk u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 155136943Sphk u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 156177493Sjeff u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 157136943Sphk u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 158175294Sattilio /* NOTE: increment on final dst if */ 159158325Stegge u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 160136943Sphk u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 161112694Stegge /* NOTE: fragment timeout is not here */ 162112694Stegge u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 163136968Sphk /* NOTE: increment on final dst if */ 164177493Sjeff u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 165233438Smckusick /* NOTE: increment on outgoing if */ 166112694Stegge u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 167175294Sattilio /* NOTE: does not include forwrads */ 168158325Stegge u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 169112694Stegge u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 170112694Stegge u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 171177493Sjeff u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 172136968Sphk /* NOTE: this is # after fragment */ 173112694Stegge u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 174112694Stegge /* NOTE: increment on final dst if */ 175177493Sjeff u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 176112694Stegge /* NOTE: this is # after reass */ 177175294Sattilio /* NOTE: increment on final dst if */ 178156225Stegge u_quad_t ifs6_reass_fail; /* # of reass failures */ 179112694Stegge /* NOTE: may not be packet count */ 180112694Stegge /* NOTE: increment on final dst if */ 181177493Sjeff u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 182112694Stegge u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 183112694Stegge}; 184112694Stegge 185112694Stegge/* 186112694Stegge * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 187112694Stegge * XXX: I'm not sure if this file is the right place for this structure... 188112694Stegge */ 189112694Steggestruct icmp6_ifstat { 190112694Stegge /* 191112694Stegge * Input statistics 192112694Stegge */ 193112694Stegge /* ipv6IfIcmpInMsgs, total # of input messages */ 194112694Stegge u_quad_t ifs6_in_msg; 195112694Stegge /* ipv6IfIcmpInErrors, # of input error messages */ 196112694Stegge u_quad_t ifs6_in_error; 197112694Stegge /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 198112694Stegge u_quad_t ifs6_in_dstunreach; 199112694Stegge /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 200112694Stegge u_quad_t ifs6_in_adminprohib; 201112694Stegge /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 202112694Stegge u_quad_t ifs6_in_timeexceed; 203119049Sphk /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 204119049Sphk u_quad_t ifs6_in_paramprob; 205112694Stegge /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 206112694Stegge u_quad_t ifs6_in_pkttoobig; 207112694Stegge /* ipv6IfIcmpInEchos, # of input echo requests */ 208119049Sphk u_quad_t ifs6_in_echo; 209119049Sphk /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 210119049Sphk u_quad_t ifs6_in_echoreply; 211112694Stegge /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 212112694Stegge u_quad_t ifs6_in_routersolicit; 213112694Stegge /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 214112694Stegge u_quad_t ifs6_in_routeradvert; 215112694Stegge /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 216112694Stegge u_quad_t ifs6_in_neighborsolicit; 217112694Stegge /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 218122747Sphk u_quad_t ifs6_in_neighboradvert; 219112694Stegge /* ipv6IfIcmpInRedirects, # of input redirects */ 220145702Sjeff u_quad_t ifs6_in_redirect; 221112694Stegge /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 222112694Stegge u_quad_t ifs6_in_mldquery; 223121354Stegge /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 224121354Stegge u_quad_t ifs6_in_mldreport; 225112694Stegge /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 226112694Stegge u_quad_t ifs6_in_mlddone; 227112694Stegge 228112694Stegge /* 229112694Stegge * Output statistics. We should solve unresolved routing problem... 230112694Stegge */ 231119049Sphk /* ipv6IfIcmpOutMsgs, total # of output messages */ 232119049Sphk u_quad_t ifs6_out_msg; 233112694Stegge /* ipv6IfIcmpOutErrors, # of output error messages */ 234121354Stegge u_quad_t ifs6_out_error; 235112694Stegge /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 236112694Stegge u_quad_t ifs6_out_dstunreach; 237112694Stegge /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 238112694Stegge u_quad_t ifs6_out_adminprohib; 239112694Stegge /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 240112694Stegge u_quad_t ifs6_out_timeexceed; 241112694Stegge /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 242248515Skib u_quad_t ifs6_out_paramprob; 243112694Stegge /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 244112694Stegge u_quad_t ifs6_out_pkttoobig; 245218195Smdf /* ipv6IfIcmpOutEchos, # of output echo requests */ 246112694Stegge u_quad_t ifs6_out_echo; 247112694Stegge /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 248112694Stegge u_quad_t ifs6_out_echoreply; 249112694Stegge /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 250112694Stegge u_quad_t ifs6_out_routersolicit; 251112694Stegge /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 252112694Stegge u_quad_t ifs6_out_routeradvert; 253112694Stegge /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 254121354Stegge u_quad_t ifs6_out_neighborsolicit; 255121354Stegge /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 256112694Stegge u_quad_t ifs6_out_neighboradvert; 257112694Stegge /* ipv6IfIcmpOutRedirects, # of output redirects */ 258112694Stegge u_quad_t ifs6_out_redirect; 259112694Stegge /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 260112694Stegge u_quad_t ifs6_out_mldquery; 261248515Skib /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 262112694Stegge u_quad_t ifs6_out_mldreport; 263112694Stegge /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 264140051Sphk u_quad_t ifs6_out_mlddone; 265112694Stegge}; 266112694Stegge 267112694Steggestruct in6_ifreq { 268112694Stegge char ifr_name[IFNAMSIZ]; 269112694Stegge union { 270112694Stegge struct sockaddr_in6 ifru_addr; 271112694Stegge struct sockaddr_in6 ifru_dstaddr; 272112694Stegge int ifru_flags; 273112694Stegge int ifru_flags6; 274112694Stegge int ifru_metric; 275112694Stegge caddr_t ifru_data; 276112694Stegge struct in6_addrlifetime ifru_lifetime; 277112694Stegge struct in6_ifstat ifru_stat; 278112694Stegge struct icmp6_ifstat ifru_icmp6stat; 279112694Stegge u_int32_t ifru_scope_id[16]; 280112694Stegge } ifr_ifru; 281112694Stegge}; 282112694Stegge 283112694Steggestruct in6_aliasreq { 284112694Stegge char ifra_name[IFNAMSIZ]; 285112694Stegge struct sockaddr_in6 ifra_addr; 286112694Stegge struct sockaddr_in6 ifra_dstaddr; 287112694Stegge struct sockaddr_in6 ifra_prefixmask; 288112694Stegge int ifra_flags; 289112694Stegge struct in6_addrlifetime ifra_lifetime; 290112694Stegge}; 291112694Stegge 292112694Stegge/* prefix type macro */ 293112694Stegge#define IN6_PREFIX_ND 1 294112694Stegge#define IN6_PREFIX_RR 2 295112694Stegge 296112694Stegge/* 297112694Stegge * prefix related flags passed between kernel(NDP related part) and 298112694Stegge * user land command(ifconfig) and daemon(rtadvd). 299112694Stegge */ 300112694Steggestruct in6_prflags { 301112694Stegge struct prf_ra { 302112694Stegge u_char onlink : 1; 303112694Stegge u_char autonomous : 1; 304112694Stegge u_char reserved : 6; 305112694Stegge } prf_ra; 306112694Stegge u_char prf_reserved1; 307166506Stegge u_short prf_reserved2; 308112694Stegge /* want to put this on 4byte offset */ 309112694Stegge struct prf_rr { 310112694Stegge u_char decrvalid : 1; 311112694Stegge u_char decrprefd : 1; 312112694Stegge u_char reserved : 6; 313112694Stegge } prf_rr; 314112694Stegge u_char prf_reserved3; 315112694Stegge u_short prf_reserved4; 316112694Stegge}; 317112694Stegge 318112694Steggestruct in6_prefixreq { 319112694Stegge char ipr_name[IFNAMSIZ]; 320112694Stegge u_char ipr_origin; 321166506Stegge u_char ipr_plen; 322112694Stegge u_int32_t ipr_vltime; 323112694Stegge u_int32_t ipr_pltime; 324112694Stegge struct in6_prflags ipr_flags; 325112694Stegge struct sockaddr_in6 ipr_prefix; 326112694Stegge}; 327112694Stegge 328112694Stegge#define PR_ORIG_RA 0 329112694Stegge#define PR_ORIG_RR 1 330112694Stegge#define PR_ORIG_STATIC 2 331112694Stegge#define PR_ORIG_KERNEL 3 332112694Stegge 333112694Stegge#define ipr_raf_onlink ipr_flags.prf_ra.onlink 334166506Stegge#define ipr_raf_auto ipr_flags.prf_ra.autonomous 335112694Stegge 336112694Stegge#define ipr_statef_onlink ipr_flags.prf_state.onlink 337112694Stegge 338112694Stegge#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 339112694Stegge#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 340112694Stegge 341112694Steggestruct in6_rrenumreq { 342112694Stegge char irr_name[IFNAMSIZ]; 343112718Stegge u_char irr_origin; 344112694Stegge u_char irr_m_len; /* match len for matchprefix */ 345112694Stegge u_char irr_m_minlen; /* minlen for matching prefix */ 346112694Stegge u_char irr_m_maxlen; /* maxlen for matching prefix */ 347112694Stegge u_char irr_u_uselen; /* uselen for adding prefix */ 348112694Stegge u_char irr_u_keeplen; /* keeplen from matching prefix */ 349112694Stegge struct irr_raflagmask { 350112694Stegge u_char onlink : 1; 351112694Stegge u_char autonomous : 1; 352112694Stegge u_char reserved : 6; 353112694Stegge } irr_raflagmask; 354112694Stegge u_int32_t irr_vltime; 355112694Stegge u_int32_t irr_pltime; 356112694Stegge struct in6_prflags irr_flags; 357112694Stegge struct sockaddr_in6 irr_matchprefix; 358112694Stegge struct sockaddr_in6 irr_useprefix; 359112694Stegge}; 360112694Stegge 361112694Stegge#define irr_raf_mask_onlink irr_raflagmask.onlink 362112694Stegge#define irr_raf_mask_auto irr_raflagmask.autonomous 363112694Stegge#define irr_raf_mask_reserved irr_raflagmask.reserved 364112694Stegge 365112694Stegge#define irr_raf_onlink irr_flags.prf_ra.onlink 366112694Stegge#define irr_raf_auto irr_flags.prf_ra.autonomous 367112694Stegge 368112694Stegge#define irr_statef_onlink irr_flags.prf_state.onlink 369112694Stegge 370112694Stegge#define irr_rrf irr_flags.prf_rr 371112694Stegge#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 372112694Stegge#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 373112694Stegge 374112694Stegge/* 375112694Stegge * Given a pointer to an in6_ifaddr (ifaddr), 376112694Stegge * return a pointer to the addr as a sockaddr_in6 377112694Stegge */ 378112694Stegge#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 379112694Stegge#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 380112694Stegge#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 381112694Stegge#define IA6_SIN6(ia) (&((ia)->ia_addr)) 382112694Stegge#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 383166506Stegge#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 384112694Stegge#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 385112694Stegge 386112694Stegge#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 387112694Stegge 388112694Stegge#ifdef _KERNEL 389112694Stegge#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 390112694Stegge (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 391112694Stegge (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 392112694Stegge (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 393112694Stegge (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 394112694Stegge#endif 395112694Stegge 396112694Stegge#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 397112694Stegge#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 398166506Stegge 399112694Stegge#ifdef _KERNEL 400112694Stegge/* 401112694Stegge * SIOCSxxx ioctls should be unused (see comments in in6.c), but 402112694Stegge * we do not shift numbers for binary compatibility. 403112694Stegge */ 404112694Stegge#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 405112694Stegge#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 406112694Stegge#endif 407112694Stegge 408112694Stegge#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 409112694Stegge#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 410112694Stegge 411112694Stegge#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 412112694Stegge#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 413166506Stegge 414166506Stegge#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 415112694Stegge#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 416166506Stegge#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 417112694Stegge 418112694Stegge#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 419112718Stegge 420112694Stegge#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 421112694Stegge#ifdef _KERNEL 422166506Stegge/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */ 423112694Stegge#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 424112694Stegge#endif 425112694Stegge#ifdef _KERNEL 426112694Stegge#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 427112694Stegge#endif 428112694Stegge#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 429112694Stegge#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 430112694Stegge#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 431112694Stegge#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 432112694Stegge#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 433112694Stegge#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 434112694Stegge 435112694Stegge#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 436112694Stegge#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 437112694Stegge#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 438112694Stegge#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 439112694Stegge 440112694Stegge#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 441112694Stegge#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 442112694Stegge 443112694Stegge#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 444112694Stegge 445130023Stjr#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq) 446130023Stjr#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq) 447112694Stegge#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq) 448112694Stegge 449112694Stegge#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 450112694Stegge#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 451112694Stegge#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 452112694Stegge#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 453112694Stegge#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 454112694Stegge struct in6_rrenumreq) /* change */ 455112694Stegge#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 456112694Stegge struct in6_rrenumreq) /* set global */ 457112694Stegge 458136966Sphk#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 459112694Stegge struct sioc_sg_req6) /* get s,g pkt cnt */ 460112694Stegge#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 461112694Stegge struct sioc_mif_req6) /* get pkt cnt per if */ 462112694Stegge 463176559Sattilio#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 464112694Stegge#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 465112694Stegge 466112694Stegge#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 467112694Stegge#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 468112694Stegge#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 469112694Stegge#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 470112694Stegge#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 471112694Stegge#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 472112694Stegge * (used only at first SIOC* call) 473112694Stegge */ 474112694Stegge#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 475112694Stegge#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 476112694Stegge#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management. 477112694Stegge * XXX: this should be temporary. 478112694Stegge */ 479112694Stegge 480112694Stegge/* do not input/output */ 481112694Stegge#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 482112694Stegge 483112694Stegge#ifdef _KERNEL 484112694Stegge#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 485112694Stegge#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 486112694Stegge#endif 487112694Stegge 488112694Stegge#ifdef _KERNEL 489112694Stegge#ifdef VIMAGE_GLOBALS 490112694Steggeextern struct in6_ifaddr *in6_ifaddr; 491112694Stegge 492112694Steggeextern struct icmp6stat icmp6stat; 493112694Stegge 494112694Steggeextern unsigned long in6_maxmtu; 495112694Stegge#endif /* VIMAGE_GLOBALS */ 496 497extern struct rwlock in6_ifaddr_lock; 498#define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED) 499#define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock) 500#define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED) 501#define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock) 502#define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock) 503#define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED) 504#define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock) 505 506#define in6_ifstat_inc(ifp, tag) \ 507do { \ 508 if (ifp) \ 509 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 510} while (/*CONSTCOND*/ 0) 511 512extern struct in6_addr zeroin6_addr; 513extern u_char inet6ctlerrmap[]; 514#endif /* _KERNEL */ 515 516/* 517 * IPv6 multicast MLD-layer source entry. 518 */ 519struct ip6_msource { 520 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */ 521 struct in6_addr im6s_addr; 522 struct im6s_st { 523 uint16_t ex; /* # of exclusive members */ 524 uint16_t in; /* # of inclusive members */ 525 } im6s_st[2]; /* state at t0, t1 */ 526 uint8_t im6s_stp; /* pending query */ 527}; 528RB_HEAD(ip6_msource_tree, ip6_msource); 529 530/* 531 * IPv6 multicast PCB-layer source entry. 532 * 533 * NOTE: overlapping use of struct ip6_msource fields at start. 534 */ 535struct in6_msource { 536 RB_ENTRY(ip6_msource) im6s_link; /* Common field */ 537 struct in6_addr im6s_addr; /* Common field */ 538 uint8_t im6sl_st[2]; /* state before/at commit */ 539}; 540 541#ifdef _KERNEL 542/* 543 * IPv6 source tree comparison function. 544 * 545 * An ordered predicate is necessary; bcmp() is not documented to return 546 * an indication of order, memcmp() is, and is an ISO C99 requirement. 547 */ 548static __inline int 549ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b) 550{ 551 552 return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr))); 553} 554RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp); 555#endif /* _KERNEL */ 556 557/* 558 * IPv6 multicast PCB-layer group filter descriptor. 559 */ 560struct in6_mfilter { 561 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */ 562 u_long im6f_nsrc; /* # of source entries */ 563 uint8_t im6f_st[2]; /* state before/at commit */ 564}; 565 566/* 567 * Legacy KAME IPv6 multicast membership descriptor. 568 */ 569struct in6_multi_mship { 570 struct in6_multi *i6mm_maddr; 571 LIST_ENTRY(in6_multi_mship) i6mm_chain; 572}; 573 574/* 575 * IPv6 group descriptor. 576 * 577 * For every entry on an ifnet's if_multiaddrs list which represents 578 * an IP multicast group, there is one of these structures. 579 * 580 * If any source filters are present, then a node will exist in the RB-tree 581 * to permit fast lookup by source whenever an operation takes place. 582 * This permits pre-order traversal when we issue reports. 583 * Source filter trees are kept separately from the socket layer to 584 * greatly simplify locking. 585 * 586 * When MLDv2 is active, in6m_timer is the response to group query timer. 587 * The state-change timer in6m_sctimer is separate; whenever state changes 588 * for the group the state change record is generated and transmitted, 589 * and kept if retransmissions are necessary. 590 * 591 * FUTURE: in6m_link is now only used when groups are being purged 592 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but 593 * because it is at the very start of the struct, we can't do this 594 * w/o breaking the ABI for ifmcstat. 595 */ 596struct in6_multi { 597 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 598 struct in6_addr in6m_addr; /* IPv6 multicast address */ 599 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 600 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */ 601 u_int in6m_refcount; /* reference count */ 602 u_int in6m_state; /* state of the membership */ 603 u_int in6m_timer; /* MLD6 listener report timer */ 604 605 /* New fields for MLDv2 follow. */ 606 struct mld_ifinfo *in6m_mli; /* MLD info */ 607 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */ 608 struct ip6_msource_tree in6m_srcs; /* tree of sources */ 609 u_long in6m_nsrc; /* # of tree entries */ 610 611 struct ifqueue in6m_scq; /* queue of pending 612 * state-change packets */ 613 struct timeval in6m_lastgsrtv; /* last G-S-R query */ 614 uint16_t in6m_sctimer; /* state-change timer */ 615 uint16_t in6m_scrv; /* state-change rexmit count */ 616 617 /* 618 * SSM state counters which track state at T0 (the time the last 619 * state-change report's RV timer went to zero) and T1 620 * (time of pending report, i.e. now). 621 * Used for computing MLDv2 state-change reports. Several refcounts 622 * are maintained here to optimize for common use-cases. 623 */ 624 struct in6m_st { 625 uint16_t iss_fmode; /* MLD filter mode */ 626 uint16_t iss_asm; /* # of ASM listeners */ 627 uint16_t iss_ex; /* # of exclusive members */ 628 uint16_t iss_in; /* # of inclusive members */ 629 uint16_t iss_rec; /* # of recorded sources */ 630 } in6m_st[2]; /* state at t0, t1 */ 631}; 632 633/* 634 * Helper function to derive the filter mode on a source entry 635 * from its internal counters. Predicates are: 636 * A source is only excluded if all listeners exclude it. 637 * A source is only included if no listeners exclude it, 638 * and at least one listener includes it. 639 * May be used by ifmcstat(8). 640 */ 641static __inline uint8_t 642im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims, 643 uint8_t t) 644{ 645 646 t = !!t; 647 if (inm->in6m_st[t].iss_ex > 0 && 648 inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex) 649 return (MCAST_EXCLUDE); 650 else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0) 651 return (MCAST_INCLUDE); 652 return (MCAST_UNDEFINED); 653} 654 655#ifdef _KERNEL 656 657/* 658 * Lock macros for IPv6 layer multicast address lists. IPv6 lock goes 659 * before link layer multicast locks in the lock order. In most cases, 660 * consumers of IN_*_MULTI() macros should acquire the locks before 661 * calling them; users of the in_{add,del}multi() functions should not. 662 */ 663extern struct mtx in6_multi_mtx; 664#define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx) 665#define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx) 666#define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED) 667#define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED) 668 669/* 670 * Look up an in6_multi record for an IPv6 multicast address 671 * on the interface ifp. 672 * If no record found, return NULL. 673 * 674 * SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held. 675 */ 676static __inline struct in6_multi * 677in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr) 678{ 679 struct ifmultiaddr *ifma; 680 struct in6_multi *inm; 681 682 IN6_MULTI_LOCK_ASSERT(); 683 IF_ADDR_LOCK_ASSERT(ifp); 684 685 inm = NULL; 686 TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) { 687 if (ifma->ifma_addr->sa_family == AF_INET6) { 688 inm = (struct in6_multi *)ifma->ifma_protospec; 689 if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr)) 690 break; 691 inm = NULL; 692 } 693 } 694 return (inm); 695} 696 697/* 698 * Wrapper for in6m_lookup_locked(). 699 * 700 * SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held. 701 */ 702static __inline struct in6_multi * 703in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr) 704{ 705 struct in6_multi *inm; 706 707 IN6_MULTI_LOCK(); 708 IF_ADDR_LOCK(ifp); 709 inm = in6m_lookup_locked(ifp, mcaddr); 710 IF_ADDR_UNLOCK(ifp); 711 IN6_MULTI_UNLOCK(); 712 713 return (inm); 714} 715 716/* Acquire an in6_multi record. */ 717static __inline void 718in6m_acquire_locked(struct in6_multi *inm) 719{ 720 721 IN6_MULTI_LOCK_ASSERT(); 722 ++inm->in6m_refcount; 723} 724 725struct ip6_moptions; 726struct sockopt; 727 728/* Multicast KPIs. */ 729int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *, 730 const struct sockaddr *, const struct sockaddr *); 731int in6_mc_join(struct ifnet *, const struct in6_addr *, 732 struct in6_mfilter *, struct in6_multi **, int); 733int in6_mc_join_locked(struct ifnet *, const struct in6_addr *, 734 struct in6_mfilter *, struct in6_multi **, int); 735int in6_mc_leave(struct in6_multi *, struct in6_mfilter *); 736int in6_mc_leave_locked(struct in6_multi *, struct in6_mfilter *); 737void in6m_clear_recorded(struct in6_multi *); 738void in6m_commit(struct in6_multi *); 739void in6m_print(const struct in6_multi *); 740int in6m_record_source(struct in6_multi *, const struct in6_addr *); 741void in6m_release_locked(struct in6_multi *); 742void ip6_freemoptions(struct ip6_moptions *); 743int ip6_getmoptions(struct inpcb *, struct sockopt *); 744int ip6_setmoptions(struct inpcb *, struct sockopt *); 745 746/* Legacy KAME multicast KPIs. */ 747struct in6_multi_mship * 748 in6_joingroup(struct ifnet *, struct in6_addr *, int *, int); 749int in6_leavegroup(struct in6_multi_mship *); 750 751/* flags to in6_update_ifa */ 752#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 753 754int in6_mask2len __P((struct in6_addr *, u_char *)); 755int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, 756 struct thread *)); 757int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, 758 struct in6_ifaddr *, int)); 759void in6_purgeaddr __P((struct ifaddr *)); 760int in6if_do_dad __P((struct ifnet *)); 761void in6_purgeif __P((struct ifnet *)); 762void in6_savemkludge __P((struct in6_ifaddr *)); 763void *in6_domifattach __P((struct ifnet *)); 764void in6_domifdetach __P((struct ifnet *, void *)); 765void in6_setmaxmtu __P((void)); 766int in6_if2idlen __P((struct ifnet *)); 767struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 768struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); 769char *ip6_sprintf __P((char *, const struct in6_addr *)); 770int in6_addr2zoneid __P((struct ifnet *, struct in6_addr *, u_int32_t *)); 771int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 772int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); 773void in6_prefixlen2mask __P((struct in6_addr *, int)); 774int in6_prefix_ioctl __P((struct socket *, u_long, caddr_t, 775 struct ifnet *)); 776int in6_prefix_add_ifid __P((int, struct in6_ifaddr *)); 777void in6_prefix_remove_ifid __P((int, struct in6_ifaddr *)); 778void in6_purgeprefix __P((struct ifnet *)); 779void in6_ifremloop(struct ifaddr *); 780void in6_ifaddloop(struct ifaddr *); 781 782int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); 783struct inpcb; 784int in6_src_ioctl __P((u_long, caddr_t)); 785#endif /* _KERNEL */ 786 787#endif /* _NETINET6_IN6_VAR_H_ */ 788