/* $NetBSD: in6_var.h,v 1.4 1999/07/22 03:59:42 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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_ /* * 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: throuw 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 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 */ struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; /* list of multicast addresses */ int ia6_flags; struct in6_addrlifetime ia6_lifetime; /* NULL = infty */ }; 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; caddr_t ifru_data; struct in6_addrlifetime ifru_lifetime; } 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; }; /* * prefix related flags passed between kernel(NDP related part) and * user land command(ifconfig) and daemon(rtadvd). */ struct in6_prflags { struct prf_ra { u_char onlink : 1; u_char autonomous : 1; u_char reserved : 6; } prf_ra; u_char prf_reserved1; u_short prf_reserved2; /* want to put this on 4byte offset */ struct prf_rr { u_char decrvalid : 1; u_char decrprefd : 1; u_char reserved : 6; } prf_rr; u_char prf_reserved3; u_short prf_reserved4; }; struct in6_prefixreq { char ipr_name[IFNAMSIZ]; u_char ipr_origin; u_char ipr_plen; u_int32_t ipr_vltime; u_int32_t ipr_pltime; struct in6_prflags ipr_flags; struct sockaddr_in6 ipr_prefix; }; #define PR_ORIG_RA 0 #define PR_ORIG_RR 1 #define PR_ORIG_STATIC 2 #define ipr_raf_onlink ipr_flags.prf_ra.onlink #define ipr_raf_auto ipr_flags.prf_ra.autonomous #define ipr_statef_onlink ipr_flags.prf_state.onlink #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd struct in6_rrenumreq { char irr_name[IFNAMSIZ]; u_char irr_origin; u_char irr_m_len; /* match len for matchprefix */ u_char irr_m_minlen; /* minlen for matching prefix */ u_char irr_m_maxlen; /* maxlen for matching prefix */ u_char irr_u_uselen; /* uselen for adding prefix */ u_char irr_u_keeplen; /* keeplen from matching prefix */ struct irr_raflagmask { u_char onlink : 1; u_char autonomous : 1; u_char reserved : 6; } irr_raflagmask; u_int32_t irr_vltime; u_int32_t irr_pltime; struct in6_prflags irr_flags; struct sockaddr_in6 irr_matchprefix; struct sockaddr_in6 irr_useprefix; }; #define irr_raf_mask_onlink irr_raflagmask.onlink #define irr_raf_mask_auto irr_raflagmask.autonomous #define irr_raf_mask_reserved irr_raflagmask.reserved #define irr_raf_onlink irr_flags.prf_ra.onlink #define irr_raf_auto irr_flags.prf_ra.autonomous #define irr_statef_onlink irr_flags.prf_state.onlink #define irr_rrf irr_flags.prf_rr #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd /* * Given a pointer to an in6_ifaddr (ifaddr), * return a pointer to the addr as a sockaddr_in6 */ #define IA6_IN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_addr.sin6_addr)) #define IA6_DSTIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_dstaddr.sin6_addr)) #define IA6_MASKIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_prefixmask.sin6_addr)) #define IA6_SIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_addr)) #define IA6_DSTSIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_dstaddr)) #define IFA_IN6(x) (((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) #define IFPR_IN6(x) (((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) #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 ) #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) #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) #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) #define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ndireq) #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ struct in6_rrenumreq) /* change */ #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ struct in6_rrenumreq) /* set global */ #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 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 */ /* do not input/output */ #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) #ifdef _KERNEL extern struct in6_ifaddr *in6_ifaddr; extern struct ifqueue ip6intrq; /* IP6 packet input queue */ extern struct in6_addr zeroin6_addr; extern u_char inet6ctlerrmap[]; extern unsigned long in6_maxmtu; #if defined(__FreeBSD__) && __FreeBSD__ >= 3 #ifdef MALLOC_DECLARE MALLOC_DECLARE(M_IPMADDR); #endif /* MALLOC_DECLARE */ #endif /* * Macro for finding the internet address structure (in6_ifaddr) corresponding * to a given interface (ifnet structure). */ #define IFP_TO_IA6(ifp, ia) \ /* struct ifnet *ifp; */ \ /* struct in6_ifaddr *ia; */ \ { \ struct ifaddr *ifa; \ for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ if (!ifa->ifa_addr) \ continue; \ if (ifa->ifa_addr->sa_family == AF_INET6) \ break; \ } \ (ia) = (struct in6_ifaddr *)ifa; \ } #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 */ 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 */ u_int in6m_timer; /* MLD6 listener report timer */ }; #ifdef _KERNEL /* * Structure used by macros below to remember position when stepping through * all of eht in6_multi records. */ struct in6_multistep { struct in6_ifaddr *i_ia; struct in6_multi *i_in6m; }; /* * Macros for looking up the in6_multi record for a given IP6 multicast * address on a given interface. If no matching record is found, "in6m" * returns NLL. */ #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ /* struct in6_addr addr; */ \ /* struct ifnet *ifp; */ \ /* struct in6_multi *in6m; */ \ { \ register struct in6_ifaddr *ia; \ \ IFP_TO_IA6((ifp), ia); \ if (ia == NULL) \ (in6m) = NULL; \ else \ for ((in6m) = ia->ia6_multiaddrs.lh_first; \ (in6m) != NULL && \ !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ (in6m) = in6m->in6m_entry.le_next) \ continue; \ } /* * Macro to step through all of the in6_multi records, one at a time. * The current position is remembered in "step", which the caller must * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" * and get the first record. Both macros return a NULL "in6m" when there * are no remaining records. */ #define IN6_NEXT_MULTI(step, in6m) \ /* struct in6_multistep step; */ \ /* struct in6_multi *in6m; */ \ { \ if (((in6m) = (step).i_in6m) != NULL) \ (step).i_in6m = (in6m)->in6m_entry.le_next; \ else \ while ((step).i_ia != NULL) { \ (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ (step).i_ia = (step).i_ia->ia_next; \ if ((in6m) != NULL) { \ (step).i_in6m = (in6m)->in6m_entry.le_next; \ break; \ } \ } \ } #define IN6_FIRST_MULTI(step, in6m) \ /* struct in6_multistep step; */ \ /* struct in6_multi *in6m */ \ { \ (step).i_ia = in6_ifaddr; \ (step).i_in6m = NULL; \ IN6_NEXT_MULTI((step), (in6m)); \ } int in6_ifinit __P((struct ifnet *, struct in6_ifaddr *, struct sockaddr_in6 *, int)); struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, int *)); void in6_delmulti __P((struct in6_multi *)); void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *)); extern int in6_mask2len __P((struct in6_addr *)); extern void in6_len2mask __P((struct in6_addr *, int)); #if defined(__NetBSD__) || (defined(__FreeBSD__) && __FreeBSD__ >= 3) int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, struct proc *)); #else int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *)); #endif void in6_savemkludge __P((struct in6_ifaddr *)); void in6_setmaxmtu __P((void)); void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *)); struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); char *ip6_sprintf __P((struct in6_addr *)); int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); int in6_prefix_ioctl __P((u_long cmd, caddr_t data, struct ifnet *ifp)); #endif /* _KERNEL */ #endif /* _NETINET6_IN6_VAR_H_ */