/* $NetBSD: in6_var.h,v 1.104 2020/06/16 17:12:18 maxv Exp $ */ /* $KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 itojun Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Copyright (c) 1985, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)in_var.h 8.1 (Berkeley) 6/10/93 */ #ifndef _NETINET6_IN6_VAR_H_ #define _NETINET6_IN6_VAR_H_ #include #include /* * Interface address, Internet version. One of these structures * is allocated for each interface with an Internet address. * The ifaddr structure contains the protocol-independent part * of the structure and is assumed to be first. */ /* * pltime/vltime are just for future reference (required to implements 2 * hour rule for hosts). they should never be modified by nd6_timeout or * anywhere else. * userland -> kernel: accept pltime/vltime * kernel -> userland: throw up everything * in kernel: modify preferred/expire only */ struct in6_addrlifetime { time_t ia6t_expire; /* valid lifetime expiration time */ time_t ia6t_preferred; /* preferred lifetime expiration time */ u_int32_t ia6t_vltime; /* valid lifetime */ u_int32_t ia6t_pltime; /* prefix lifetime */ }; struct lltable; struct nd_kifinfo; struct in6_ifextra { struct in6_ifstat *in6_ifstat; struct icmp6_ifstat *icmp6_ifstat; struct nd_kifinfo *nd_ifinfo; struct scope6_id *scope6_id; struct lltable *lltable; }; LIST_HEAD(in6_multihead, in6_multi); struct in6_ifaddr { struct ifaddr ia_ifa; /* protocol-independent info */ #define ia_ifp ia_ifa.ifa_ifp #define ia_flags ia_ifa.ifa_flags struct sockaddr_in6 ia_addr; /* interface address */ struct sockaddr_in6 ia_net; /* network number of interface */ struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ struct sockaddr_in6 ia_prefixmask; /* prefix mask */ u_int32_t ia_plen; /* prefix length */ /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ struct in6_multihead _ia6_multiaddrs; /* list of multicast addresses */ int ia6_flags; struct in6_addrlifetime ia6_lifetime; time_t ia6_createtime; /* the creation time of this address, which is * currently used for temporary addresses only. */ time_t ia6_updatetime; /* multicast addresses joined from the kernel */ LIST_HEAD(, in6_multi_mship) ia6_memberships; #ifdef _KERNEL struct pslist_entry ia6_pslist_entry; #endif }; #ifdef _KERNEL static __inline void ia6_acquire(struct in6_ifaddr *ia, struct psref *psref) { KASSERT(ia != NULL); ifa_acquire(&ia->ia_ifa, psref); } static __inline void ia6_release(struct in6_ifaddr *ia, struct psref *psref) { if (ia == NULL) return; ifa_release(&ia->ia_ifa, psref); } #endif /* control structure to manage address selection policy */ struct in6_addrpolicy { struct sockaddr_in6 addr; /* prefix address */ struct sockaddr_in6 addrmask; /* prefix mask */ int preced; /* precedence */ int label; /* matching label */ u_quad_t use; /* statistics */ }; /* * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). */ struct in6_ifstat { u_quad_t ifs6_in_receive; /* # of total input datagram */ u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ /* NOTE: increment on final dst if */ u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ u_quad_t ifs6_in_discard; /* # of discarded datagrams */ /* NOTE: fragment timeout is not here */ u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ /* NOTE: increment on final dst if */ u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ /* NOTE: increment on outgoing if */ u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ /* NOTE: does not include forwrads */ u_quad_t ifs6_out_discard; /* # of discarded datagrams */ u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ /* NOTE: this is # after fragment */ u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ /* NOTE: increment on final dst if */ u_quad_t ifs6_reass_ok; /* # of reassembled packets */ /* NOTE: this is # after reass */ /* NOTE: increment on final dst if */ u_quad_t ifs6_reass_fail; /* # of reass failures */ /* NOTE: may not be packet count */ /* NOTE: increment on final dst if */ u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ }; /* * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. * XXX: I'm not sure if this file is the right place for this structure... */ struct icmp6_ifstat { /* * Input statistics */ /* ipv6IfIcmpInMsgs, total # of input messages */ u_quad_t ifs6_in_msg; /* ipv6IfIcmpInErrors, # of input error messages */ u_quad_t ifs6_in_error; /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ u_quad_t ifs6_in_dstunreach; /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ u_quad_t ifs6_in_adminprohib; /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ u_quad_t ifs6_in_timeexceed; /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ u_quad_t ifs6_in_paramprob; /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ u_quad_t ifs6_in_pkttoobig; /* ipv6IfIcmpInEchos, # of input echo requests */ u_quad_t ifs6_in_echo; /* ipv6IfIcmpInEchoReplies, # of input echo replies */ u_quad_t ifs6_in_echoreply; /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ u_quad_t ifs6_in_routersolicit; /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ u_quad_t ifs6_in_routeradvert; /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ u_quad_t ifs6_in_neighborsolicit; /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ u_quad_t ifs6_in_neighboradvert; /* ipv6IfIcmpInRedirects, # of input redirects */ u_quad_t ifs6_in_redirect; /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ u_quad_t ifs6_in_mldquery; /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ u_quad_t ifs6_in_mldreport; /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ u_quad_t ifs6_in_mlddone; /* * Output statistics. We should solve unresolved routing problem... */ /* ipv6IfIcmpOutMsgs, total # of output messages */ u_quad_t ifs6_out_msg; /* ipv6IfIcmpOutErrors, # of output error messages */ u_quad_t ifs6_out_error; /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ u_quad_t ifs6_out_dstunreach; /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ u_quad_t ifs6_out_adminprohib; /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ u_quad_t ifs6_out_timeexceed; /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ u_quad_t ifs6_out_paramprob; /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ u_quad_t ifs6_out_pkttoobig; /* ipv6IfIcmpOutEchos, # of output echo requests */ u_quad_t ifs6_out_echo; /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ u_quad_t ifs6_out_echoreply; /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ u_quad_t ifs6_out_routersolicit; /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ u_quad_t ifs6_out_routeradvert; /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ u_quad_t ifs6_out_neighborsolicit; /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ u_quad_t ifs6_out_neighboradvert; /* ipv6IfIcmpOutRedirects, # of output redirects */ u_quad_t ifs6_out_redirect; /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ u_quad_t ifs6_out_mldquery; /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ u_quad_t ifs6_out_mldreport; /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ u_quad_t ifs6_out_mlddone; }; /* * If you make changes that change the size of in6_ifreq, * make sure you fix compat/netinet6/in6_var.h */ struct in6_ifreq { char ifr_name[IFNAMSIZ]; union { struct sockaddr_in6 ifru_addr; struct sockaddr_in6 ifru_dstaddr; short ifru_flags; int ifru_flags6; int ifru_metric; void * ifru_data; struct in6_addrlifetime ifru_lifetime; struct in6_ifstat ifru_stat; struct icmp6_ifstat ifru_icmp6stat; } ifr_ifru; }; struct in6_aliasreq { char ifra_name[IFNAMSIZ]; struct sockaddr_in6 ifra_addr; struct sockaddr_in6 ifra_dstaddr; struct sockaddr_in6 ifra_prefixmask; int ifra_flags; struct in6_addrlifetime ifra_lifetime; }; /* * Given a pointer to an in6_ifaddr (ifaddr), * return a pointer to the addr as a sockaddr_in6 */ #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) #define IA6_SIN6(ia) (&((ia)->ia_addr)) #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) #ifdef _KERNEL #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) #endif #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) #ifdef _KERNEL /* * SIOCSxxx ioctls should be unused (see comments in in6.c), but * we do not shift numbers for binary compatibility. */ #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) #endif #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) /* 26 was OSIOCAIFADDR_IN6 */ /* 70 was OSIOCSIFPHYADDR_IN6 */ #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) /* * 74 was SIOCGDRLST_IN6 * 75 was SIOCGPRLST_IN6 * 76 was OSIOCGIFINFO_IN6 * 77 was SIOCSNDFLUSH_IN6 */ #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) /* * 79 was SIOCSPFXFLUSH_IN6 * 80 was SIOCSRTRFLUSH_IN6 * 81 was SIOCGIFALIFETIME_IN6 */ #if 0 /* withdrawn - do not reuse number 82 */ #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) #endif #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) /* * 85 was SIOCSDEFIFACE_IN6 * 86 was SIOCGDEFIFACE_IN6 * 87 was OSIOCSIFINFO_FLAGS * 100 was SIOCSIFPREFIX_IN6 * 101 was SIOCGIFPREFIX_IN6 * 102 was SIOCDIFPREFIX_IN6 * 103 was SIOCAIFPREFIX_IN6 * 104 was SIOCCIFPREFIX_IN6 * 105 was SIOCSGIFPREFIX_IN6 */ #define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq) #define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq) /* 108 was OSIOCGIFINFO_IN6_90 * 109 was OSIOCSIFINFO_IN6_90 */ #define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq) /* 110 - 112 are defined in net/if_pppoe.h */ #define SIOCGIFINFO_IN6 _IOWR('i', 113, struct in6_ndireq) #define SIOCSIFINFO_IN6 _IOWR('i', 114, struct in6_ndireq) #define SIOCSIFINFO_FLAGS _IOWR('i', 115, struct in6_ndireq) /* XXX: Someone decided to switch to 'u' here for unknown reasons! */ #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ struct sioc_sg_req6) /* get s,g pkt cnt */ #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ struct sioc_mif_req6) /* get pkt cnt per if */ #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) #define IN6_IFF_ANYCAST 0x01 /* anycast address */ #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address * (used only at first SIOC* call) */ #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ #define IN6_IFFBITS \ "\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \ "\7AUTOCONF\10TEMPORARY" /* do not input/output */ #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) #ifdef _KERNEL #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) #endif #ifdef _KERNEL #include #include #include extern pktqueue_t *ip6_pktq; MALLOC_DECLARE(M_IP6OPT); extern struct pslist_head in6_ifaddr_list; extern kmutex_t in6_ifaddr_lock; #define IN6_ADDRLIST_ENTRY_INIT(__ia) \ PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry) #define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \ PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry) #define IN6_ADDRLIST_READER_EMPTY() \ (PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ ia6_pslist_entry) == NULL) #define IN6_ADDRLIST_READER_FIRST() \ PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ ia6_pslist_entry) #define IN6_ADDRLIST_READER_NEXT(__ia) \ PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) #define IN6_ADDRLIST_READER_FOREACH(__ia) \ PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \ struct in6_ifaddr, ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \ PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_REMOVE(__ia) \ PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_FOREACH(__ia) \ PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \ ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_FIRST() \ PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_NEXT(__ia) \ PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \ PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry) #define IN6_ADDRLIST_WRITER_EMPTY() \ (PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ ia6_pslist_entry) == NULL) #define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \ do { \ if (IN6_ADDRLIST_WRITER_EMPTY()) { \ IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \ } else { \ struct in6_ifaddr *__ia; \ IN6_ADDRLIST_WRITER_FOREACH(__ia) { \ if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \ IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\ (__new)); \ break; \ } \ } \ } \ } while (0) #define in6_ifstat_inc(ifp, tag) \ do { \ if (ifp) \ ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ } while (/*CONSTCOND*/ 0) extern const struct in6_addr zeroin6_addr; extern const u_char inet6ctlerrmap[]; extern bool in6_present; /* * Macro for finding the internet address structure (in6_ifaddr) corresponding * to a given interface (ifnet structure). */ static __inline struct in6_ifaddr * in6_get_ia_from_ifp(struct ifnet *ifp) { struct ifaddr *ifa; IFADDR_READER_FOREACH(ifa, ifp) { if (ifa->ifa_addr->sa_family == AF_INET6) break; } return (struct in6_ifaddr *)ifa; } static __inline struct in6_ifaddr * in6_get_ia_from_ifp_psref(struct ifnet *ifp, struct psref *psref) { struct in6_ifaddr *ia; int s; s = pserialize_read_enter(); ia = in6_get_ia_from_ifp(ifp); if (ia != NULL) ia6_acquire(ia, psref); pserialize_read_exit(s); return ia; } #endif /* _KERNEL */ /* * Multi-cast membership entry. One for each group/ifp that a PCB * belongs to. */ struct in6_multi_mship { struct in6_multi *i6mm_maddr; /* Multicast address pointer */ LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ }; struct in6_multi { LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ struct in6_addr in6m_addr; /* IP6 multicast address */ struct ifnet *in6m_ifp; /* back pointer to ifnet */ /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ struct in6_ifaddr *_in6m_ia; /* back pointer to in6_ifaddr */ u_int in6m_refcount; /* # membership claims by sockets */ u_int in6m_state; /* state of the membership */ int in6m_timer; /* delay to send the 1st report */ struct timeval in6m_timer_expire; /* when the timer expires */ callout_t in6m_timer_ch; }; #define IN6M_TIMER_UNDEF -1 #ifdef _KERNEL /* flags to in6_update_ifa */ #define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ #if 0 /* * Macros for looking up the in6_multi_mship record for a given IP6 multicast * address on a given interface. If no matching record is found, "imm" * returns NULL. */ static __inline struct in6_multi_mship * in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp, struct ip6_moptions *imop) { struct in6_multi_mship *imm; LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) { if (imm->i6mm_maddr->in6m_ifp != ifp) continue; if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, addr)) break; } return imm; } #define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \ /* struct in6_addr __addr; */ \ /* struct ifnet *__ifp; */ \ /* struct ip6_moptions *__imop */ \ /* struct in6_multi_mship *__imm; */ \ do { \ (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \ } while (/*CONSTCOND*/ 0) #endif void in6_init(void); void in6_multi_lock(int); void in6_multi_unlock(void); bool in6_multi_locked(int); struct in6_multi * in6_lookup_multi(const struct in6_addr *, const struct ifnet *); bool in6_multi_group(const struct in6_addr *, const struct ifnet *); void in6_purge_multi(struct ifnet *); struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, int *, int); void in6_delmulti(struct in6_multi *); void in6_delmulti_locked(struct in6_multi *); void in6_lookup_and_delete_multi(const struct in6_addr *, const struct ifnet *); struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *, int); int in6_leavegroup(struct in6_multi_mship *); int in6_mask2len(struct in6_addr *, u_char *); int in6_control(struct socket *, u_long, void *, struct ifnet *); int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int); void in6_purgeaddr(struct ifaddr *); void in6_purgeif(struct ifnet *); void *in6_domifattach(struct ifnet *); void in6_domifdetach(struct ifnet *, void *); void in6_ifremlocal(struct ifaddr *); void in6_ifaddlocal(struct ifaddr *); struct in6_ifaddr * in6ifa_ifpforlinklocal(const struct ifnet *, int); struct in6_ifaddr * in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *); struct in6_ifaddr * in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *); struct in6_ifaddr * in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *, struct psref *); struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t); int in6_matchlen(struct in6_addr *, struct in6_addr *); void in6_prefixlen2mask(struct in6_addr *, int); void in6_purge_mcast_references(struct in6_multi *); int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */ int in6_src_ioctl(u_long, void *); int in6_is_addr_deprecated(struct sockaddr_in6 *); struct in6pcb; #define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) void in6_sysctl_multicast_setup(struct sysctllog **); #endif /* _KERNEL */ #endif /* !_NETINET6_IN6_VAR_H_ */