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      1  1.108    andvar /*	$NetBSD: in6_var.h,v 1.108 2025/06/27 21:36:23 andvar Exp $	*/
      2   1.32    itojun /*	$KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 itojun Exp $	*/
      3    1.3   thorpej 
      4    1.2    itojun /*
      5    1.2    itojun  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      6    1.2    itojun  * All rights reserved.
      7   1.15    itojun  *
      8    1.2    itojun  * Redistribution and use in source and binary forms, with or without
      9    1.2    itojun  * modification, are permitted provided that the following conditions
     10    1.2    itojun  * are met:
     11    1.2    itojun  * 1. Redistributions of source code must retain the above copyright
     12    1.2    itojun  *    notice, this list of conditions and the following disclaimer.
     13    1.2    itojun  * 2. Redistributions in binary form must reproduce the above copyright
     14    1.2    itojun  *    notice, this list of conditions and the following disclaimer in the
     15    1.2    itojun  *    documentation and/or other materials provided with the distribution.
     16    1.2    itojun  * 3. Neither the name of the project nor the names of its contributors
     17    1.2    itojun  *    may be used to endorse or promote products derived from this software
     18    1.2    itojun  *    without specific prior written permission.
     19   1.15    itojun  *
     20    1.2    itojun  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21    1.2    itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22    1.2    itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23    1.2    itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24    1.2    itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25    1.2    itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26    1.2    itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27    1.2    itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28    1.2    itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29    1.2    itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30    1.2    itojun  * SUCH DAMAGE.
     31    1.2    itojun  */
     32    1.2    itojun 
     33    1.2    itojun /*
     34    1.2    itojun  * Copyright (c) 1985, 1986, 1993
     35    1.2    itojun  *	The Regents of the University of California.  All rights reserved.
     36    1.2    itojun  *
     37    1.2    itojun  * Redistribution and use in source and binary forms, with or without
     38    1.2    itojun  * modification, are permitted provided that the following conditions
     39    1.2    itojun  * are met:
     40    1.2    itojun  * 1. Redistributions of source code must retain the above copyright
     41    1.2    itojun  *    notice, this list of conditions and the following disclaimer.
     42    1.2    itojun  * 2. Redistributions in binary form must reproduce the above copyright
     43    1.2    itojun  *    notice, this list of conditions and the following disclaimer in the
     44    1.2    itojun  *    documentation and/or other materials provided with the distribution.
     45   1.35       agc  * 3. Neither the name of the University nor the names of its contributors
     46    1.2    itojun  *    may be used to endorse or promote products derived from this software
     47    1.2    itojun  *    without specific prior written permission.
     48    1.2    itojun  *
     49    1.2    itojun  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     50    1.2    itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     51    1.2    itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     52    1.2    itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     53    1.2    itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     54    1.2    itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     55    1.2    itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     56    1.2    itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     57    1.2    itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     58    1.2    itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     59    1.2    itojun  * SUCH DAMAGE.
     60    1.2    itojun  *
     61    1.2    itojun  *	@(#)in_var.h	8.1 (Berkeley) 6/10/93
     62    1.2    itojun  */
     63    1.2    itojun 
     64    1.2    itojun #ifndef _NETINET6_IN6_VAR_H_
     65    1.2    itojun #define _NETINET6_IN6_VAR_H_
     66    1.2    itojun 
     67   1.55       jld #include <sys/callout.h>
     68   1.74  dholland #include <sys/ioccom.h>
     69   1.55       jld 
     70    1.2    itojun /*
     71    1.2    itojun  * Interface address, Internet version.  One of these structures
     72    1.2    itojun  * is allocated for each interface with an Internet address.
     73    1.2    itojun  * The ifaddr structure contains the protocol-independent part
     74    1.2    itojun  * of the structure and is assumed to be first.
     75    1.2    itojun  */
     76    1.2    itojun 
     77    1.2    itojun /*
     78    1.2    itojun  * pltime/vltime are just for future reference (required to implements 2
     79    1.2    itojun  * hour rule for hosts).  they should never be modified by nd6_timeout or
     80    1.2    itojun  * anywhere else.
     81    1.2    itojun  *	userland -> kernel: accept pltime/vltime
     82   1.22    itojun  *	kernel -> userland: throw up everything
     83    1.2    itojun  *	in kernel: modify preferred/expire only
     84    1.2    itojun  */
     85    1.2    itojun struct in6_addrlifetime {
     86   1.62  christos 	time_t ia6t_expire;	/* valid lifetime expiration time */
     87   1.62  christos 	time_t ia6t_preferred;	/* preferred lifetime expiration time */
     88    1.2    itojun 	u_int32_t ia6t_vltime;	/* valid lifetime */
     89    1.2    itojun 	u_int32_t ia6t_pltime;	/* prefix lifetime */
     90    1.2    itojun };
     91    1.2    itojun 
     92   1.75     ozaki struct lltable;
     93  1.103       roy struct nd_kifinfo;
     94   1.26    itojun struct in6_ifextra {
     95   1.26    itojun 	struct in6_ifstat *in6_ifstat;
     96   1.26    itojun 	struct icmp6_ifstat *icmp6_ifstat;
     97  1.103       roy 	struct nd_kifinfo *nd_ifinfo;
     98   1.41    rpaulo 	struct scope6_id *scope6_id;
     99   1.75     ozaki 	struct lltable *lltable;
    100   1.26    itojun };
    101   1.26    itojun 
    102   1.71      matt LIST_HEAD(in6_multihead, in6_multi);
    103    1.2    itojun struct	in6_ifaddr {
    104    1.2    itojun 	struct	ifaddr ia_ifa;		/* protocol-independent info */
    105    1.2    itojun #define	ia_ifp		ia_ifa.ifa_ifp
    106    1.2    itojun #define ia_flags	ia_ifa.ifa_flags
    107    1.2    itojun 	struct	sockaddr_in6 ia_addr;	/* interface address */
    108    1.2    itojun 	struct	sockaddr_in6 ia_net;	/* network number of interface */
    109    1.2    itojun 	struct	sockaddr_in6 ia_dstaddr; /* space for destination addr */
    110    1.2    itojun 	struct	sockaddr_in6 ia_prefixmask; /* prefix mask */
    111    1.4    itojun 	u_int32_t ia_plen;		/* prefix length */
    112   1.78     ozaki 	/* DEPRECATED. Keep it to avoid breaking kvm(3) users */
    113    1.2    itojun 	struct	in6_ifaddr *ia_next;	/* next in6 list of IP6 addresses */
    114   1.93     ozaki 	/* DEPRECATED. Keep it to avoid breaking kvm(3) users */
    115   1.93     ozaki 	struct	in6_multihead _ia6_multiaddrs;
    116    1.2    itojun 					/* list of multicast addresses */
    117    1.2    itojun 	int	ia6_flags;
    118    1.2    itojun 
    119   1.32    itojun 	struct in6_addrlifetime ia6_lifetime;
    120   1.32    itojun 	time_t	ia6_createtime; /* the creation time of this address, which is
    121   1.32    itojun 				 * currently used for temporary addresses only.
    122   1.32    itojun 				 */
    123   1.32    itojun 	time_t	ia6_updatetime;
    124   1.32    itojun 
    125   1.32    itojun 	/* multicast addresses joined from the kernel */
    126   1.32    itojun 	LIST_HEAD(, in6_multi_mship) ia6_memberships;
    127   1.78     ozaki 
    128   1.79     ozaki #ifdef _KERNEL
    129   1.78     ozaki 	struct pslist_entry	ia6_pslist_entry;
    130   1.79     ozaki #endif
    131    1.5    itojun };
    132    1.5    itojun 
    133   1.84     ozaki #ifdef _KERNEL
    134   1.98  christos static __inline void
    135   1.84     ozaki ia6_acquire(struct in6_ifaddr *ia, struct psref *psref)
    136   1.84     ozaki {
    137   1.84     ozaki 
    138   1.84     ozaki 	KASSERT(ia != NULL);
    139   1.84     ozaki 	ifa_acquire(&ia->ia_ifa, psref);
    140   1.84     ozaki }
    141   1.84     ozaki 
    142   1.98  christos static __inline void
    143   1.84     ozaki ia6_release(struct in6_ifaddr *ia, struct psref *psref)
    144   1.84     ozaki {
    145   1.84     ozaki 
    146   1.84     ozaki 	if (ia == NULL)
    147   1.84     ozaki 		return;
    148   1.84     ozaki 	ifa_release(&ia->ia_ifa, psref);
    149   1.84     ozaki }
    150   1.84     ozaki #endif
    151   1.84     ozaki 
    152   1.41    rpaulo /* control structure to manage address selection policy */
    153   1.41    rpaulo struct in6_addrpolicy {
    154   1.41    rpaulo 	struct sockaddr_in6 addr; /* prefix address */
    155   1.41    rpaulo 	struct sockaddr_in6 addrmask; /* prefix mask */
    156   1.41    rpaulo 	int preced;		/* precedence */
    157   1.41    rpaulo 	int label;		/* matching label */
    158   1.41    rpaulo 	u_quad_t use;		/* statistics */
    159   1.41    rpaulo };
    160   1.41    rpaulo 
    161    1.5    itojun /*
    162    1.5    itojun  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
    163    1.5    itojun  */
    164    1.5    itojun struct in6_ifstat {
    165    1.5    itojun 	u_quad_t ifs6_in_receive;	/* # of total input datagram */
    166    1.5    itojun 	u_quad_t ifs6_in_hdrerr;	/* # of datagrams with invalid hdr */
    167    1.5    itojun 	u_quad_t ifs6_in_toobig;	/* # of datagrams exceeded MTU */
    168    1.5    itojun 	u_quad_t ifs6_in_noroute;	/* # of datagrams with no route */
    169    1.5    itojun 	u_quad_t ifs6_in_addrerr;	/* # of datagrams with invalid dst */
    170    1.5    itojun 	u_quad_t ifs6_in_protounknown;	/* # of datagrams with unknown proto */
    171    1.5    itojun 					/* NOTE: increment on final dst if */
    172    1.5    itojun 	u_quad_t ifs6_in_truncated;	/* # of truncated datagrams */
    173    1.5    itojun 	u_quad_t ifs6_in_discard;	/* # of discarded datagrams */
    174    1.5    itojun 					/* NOTE: fragment timeout is not here */
    175    1.5    itojun 	u_quad_t ifs6_in_deliver;	/* # of datagrams delivered to ULP */
    176    1.5    itojun 					/* NOTE: increment on final dst if */
    177    1.5    itojun 	u_quad_t ifs6_out_forward;	/* # of datagrams forwarded */
    178    1.5    itojun 					/* NOTE: increment on outgoing if */
    179    1.5    itojun 	u_quad_t ifs6_out_request;	/* # of outgoing datagrams from ULP */
    180  1.108    andvar 					/* NOTE: does not include forwards */
    181    1.5    itojun 	u_quad_t ifs6_out_discard;	/* # of discarded datagrams */
    182    1.5    itojun 	u_quad_t ifs6_out_fragok;	/* # of datagrams fragmented */
    183    1.5    itojun 	u_quad_t ifs6_out_fragfail;	/* # of datagrams failed on fragment */
    184    1.5    itojun 	u_quad_t ifs6_out_fragcreat;	/* # of fragment datagrams */
    185    1.5    itojun 					/* NOTE: this is # after fragment */
    186    1.5    itojun 	u_quad_t ifs6_reass_reqd;	/* # of incoming fragmented packets */
    187    1.5    itojun 					/* NOTE: increment on final dst if */
    188    1.5    itojun 	u_quad_t ifs6_reass_ok;		/* # of reassembled packets */
    189    1.5    itojun 					/* NOTE: this is # after reass */
    190    1.5    itojun 					/* NOTE: increment on final dst if */
    191    1.5    itojun 	u_quad_t ifs6_reass_fail;	/* # of reass failures */
    192    1.5    itojun 					/* NOTE: may not be packet count */
    193    1.5    itojun 					/* NOTE: increment on final dst if */
    194    1.5    itojun 	u_quad_t ifs6_in_mcast;		/* # of inbound multicast datagrams */
    195    1.5    itojun 	u_quad_t ifs6_out_mcast;	/* # of outbound multicast datagrams */
    196    1.5    itojun };
    197    1.5    itojun 
    198    1.5    itojun /*
    199    1.5    itojun  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
    200    1.5    itojun  * XXX: I'm not sure if this file is the right place for this structure...
    201    1.5    itojun  */
    202    1.5    itojun struct icmp6_ifstat {
    203    1.5    itojun 	/*
    204    1.5    itojun 	 * Input statistics
    205    1.5    itojun 	 */
    206    1.5    itojun 	/* ipv6IfIcmpInMsgs, total # of input messages */
    207    1.5    itojun 	u_quad_t ifs6_in_msg;
    208    1.5    itojun 	/* ipv6IfIcmpInErrors, # of input error messages */
    209    1.5    itojun 	u_quad_t ifs6_in_error;
    210    1.5    itojun 	/* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
    211    1.5    itojun 	u_quad_t ifs6_in_dstunreach;
    212    1.5    itojun 	/* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
    213    1.5    itojun 	u_quad_t ifs6_in_adminprohib;
    214    1.5    itojun 	/* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
    215    1.5    itojun 	u_quad_t ifs6_in_timeexceed;
    216    1.5    itojun 	/* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
    217    1.5    itojun 	u_quad_t ifs6_in_paramprob;
    218    1.5    itojun 	/* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
    219    1.5    itojun 	u_quad_t ifs6_in_pkttoobig;
    220    1.5    itojun 	/* ipv6IfIcmpInEchos, # of input echo requests */
    221    1.5    itojun 	u_quad_t ifs6_in_echo;
    222    1.5    itojun 	/* ipv6IfIcmpInEchoReplies, # of input echo replies */
    223    1.5    itojun 	u_quad_t ifs6_in_echoreply;
    224    1.5    itojun 	/* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
    225    1.5    itojun 	u_quad_t ifs6_in_routersolicit;
    226    1.5    itojun 	/* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
    227    1.5    itojun 	u_quad_t ifs6_in_routeradvert;
    228    1.5    itojun 	/* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
    229    1.5    itojun 	u_quad_t ifs6_in_neighborsolicit;
    230    1.5    itojun 	/* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
    231    1.5    itojun 	u_quad_t ifs6_in_neighboradvert;
    232    1.5    itojun 	/* ipv6IfIcmpInRedirects, # of input redirects */
    233    1.5    itojun 	u_quad_t ifs6_in_redirect;
    234    1.5    itojun 	/* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
    235    1.5    itojun 	u_quad_t ifs6_in_mldquery;
    236    1.5    itojun 	/* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
    237    1.5    itojun 	u_quad_t ifs6_in_mldreport;
    238    1.5    itojun 	/* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
    239    1.5    itojun 	u_quad_t ifs6_in_mlddone;
    240    1.5    itojun 
    241    1.5    itojun 	/*
    242   1.15    itojun 	 * Output statistics. We should solve unresolved routing problem...
    243    1.5    itojun 	 */
    244    1.5    itojun 	/* ipv6IfIcmpOutMsgs, total # of output messages */
    245    1.5    itojun 	u_quad_t ifs6_out_msg;
    246    1.5    itojun 	/* ipv6IfIcmpOutErrors, # of output error messages */
    247    1.5    itojun 	u_quad_t ifs6_out_error;
    248    1.5    itojun 	/* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
    249    1.5    itojun 	u_quad_t ifs6_out_dstunreach;
    250    1.5    itojun 	/* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
    251    1.5    itojun 	u_quad_t ifs6_out_adminprohib;
    252    1.5    itojun 	/* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
    253    1.5    itojun 	u_quad_t ifs6_out_timeexceed;
    254    1.5    itojun 	/* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
    255    1.5    itojun 	u_quad_t ifs6_out_paramprob;
    256    1.5    itojun 	/* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
    257    1.5    itojun 	u_quad_t ifs6_out_pkttoobig;
    258    1.5    itojun 	/* ipv6IfIcmpOutEchos, # of output echo requests */
    259    1.5    itojun 	u_quad_t ifs6_out_echo;
    260    1.5    itojun 	/* ipv6IfIcmpOutEchoReplies, # of output echo replies */
    261    1.5    itojun 	u_quad_t ifs6_out_echoreply;
    262    1.5    itojun 	/* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
    263    1.5    itojun 	u_quad_t ifs6_out_routersolicit;
    264    1.5    itojun 	/* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
    265    1.5    itojun 	u_quad_t ifs6_out_routeradvert;
    266    1.5    itojun 	/* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
    267    1.5    itojun 	u_quad_t ifs6_out_neighborsolicit;
    268    1.5    itojun 	/* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
    269    1.5    itojun 	u_quad_t ifs6_out_neighboradvert;
    270    1.5    itojun 	/* ipv6IfIcmpOutRedirects, # of output redirects */
    271    1.5    itojun 	u_quad_t ifs6_out_redirect;
    272    1.5    itojun 	/* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
    273    1.5    itojun 	u_quad_t ifs6_out_mldquery;
    274    1.5    itojun 	/* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
    275    1.5    itojun 	u_quad_t ifs6_out_mldreport;
    276    1.5    itojun 	/* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
    277    1.5    itojun 	u_quad_t ifs6_out_mlddone;
    278    1.2    itojun };
    279    1.2    itojun 
    280   1.64  christos /*
    281   1.64  christos  * If you make changes that change the size of in6_ifreq,
    282   1.64  christos  * make sure you fix compat/netinet6/in6_var.h
    283   1.64  christos  */
    284    1.2    itojun struct	in6_ifreq {
    285    1.2    itojun 	char	ifr_name[IFNAMSIZ];
    286    1.2    itojun 	union {
    287    1.2    itojun 		struct	sockaddr_in6 ifru_addr;
    288    1.2    itojun 		struct	sockaddr_in6 ifru_dstaddr;
    289    1.2    itojun 		short	ifru_flags;
    290    1.2    itojun 		int	ifru_flags6;
    291    1.2    itojun 		int	ifru_metric;
    292   1.50  christos 		void *	ifru_data;
    293    1.2    itojun 		struct in6_addrlifetime ifru_lifetime;
    294    1.5    itojun 		struct in6_ifstat ifru_stat;
    295    1.5    itojun 		struct icmp6_ifstat ifru_icmp6stat;
    296    1.2    itojun 	} ifr_ifru;
    297    1.2    itojun };
    298    1.2    itojun 
    299    1.2    itojun struct	in6_aliasreq {
    300    1.2    itojun 	char	ifra_name[IFNAMSIZ];
    301    1.2    itojun 	struct	sockaddr_in6 ifra_addr;
    302    1.2    itojun 	struct	sockaddr_in6 ifra_dstaddr;
    303    1.2    itojun 	struct	sockaddr_in6 ifra_prefixmask;
    304    1.2    itojun 	int	ifra_flags;
    305    1.2    itojun 	struct in6_addrlifetime ifra_lifetime;
    306    1.2    itojun };
    307    1.2    itojun 
    308    1.2    itojun /*
    309    1.2    itojun  * Given a pointer to an in6_ifaddr (ifaddr),
    310    1.2    itojun  * return a pointer to the addr as a sockaddr_in6
    311    1.2    itojun  */
    312    1.5    itojun #define IA6_IN6(ia)	(&((ia)->ia_addr.sin6_addr))
    313    1.5    itojun #define IA6_DSTIN6(ia)	(&((ia)->ia_dstaddr.sin6_addr))
    314    1.5    itojun #define IA6_MASKIN6(ia)	(&((ia)->ia_prefixmask.sin6_addr))
    315    1.5    itojun #define IA6_SIN6(ia)	(&((ia)->ia_addr))
    316    1.5    itojun #define IA6_DSTSIN6(ia)	(&((ia)->ia_dstaddr))
    317    1.5    itojun #define IFA_IN6(x)	(&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
    318    1.5    itojun #define IFA_DSTIN6(x)	(&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
    319    1.2    itojun 
    320    1.5    itojun #ifdef _KERNEL
    321    1.2    itojun #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)	(	\
    322    1.2    itojun 	(((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
    323    1.2    itojun 	(((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
    324    1.2    itojun 	(((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
    325    1.2    itojun 	(((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
    326    1.5    itojun #endif
    327    1.2    itojun 
    328    1.2    itojun #define SIOCSIFADDR_IN6		 _IOW('i', 12, struct in6_ifreq)
    329    1.2    itojun #define SIOCGIFADDR_IN6		_IOWR('i', 33, struct in6_ifreq)
    330   1.11    itojun 
    331   1.11    itojun #ifdef _KERNEL
    332   1.11    itojun /*
    333   1.11    itojun  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
    334   1.11    itojun  * we do not shift numbers for binary compatibility.
    335   1.11    itojun  */
    336    1.2    itojun #define SIOCSIFDSTADDR_IN6	 _IOW('i', 14, struct in6_ifreq)
    337   1.11    itojun #define SIOCSIFNETMASK_IN6	 _IOW('i', 22, struct in6_ifreq)
    338   1.15    itojun #endif
    339   1.11    itojun 
    340    1.2    itojun #define SIOCGIFDSTADDR_IN6	_IOWR('i', 34, struct in6_ifreq)
    341    1.2    itojun #define SIOCGIFNETMASK_IN6	_IOWR('i', 37, struct in6_ifreq)
    342    1.2    itojun 
    343    1.2    itojun #define SIOCDIFADDR_IN6		 _IOW('i', 25, struct in6_ifreq)
    344   1.63  christos /* 26 was OSIOCAIFADDR_IN6 */
    345    1.2    itojun 
    346   1.63  christos /* 70 was OSIOCSIFPHYADDR_IN6 */
    347    1.2    itojun #define	SIOCGIFPSRCADDR_IN6	_IOWR('i', 71, struct in6_ifreq)
    348    1.2    itojun #define	SIOCGIFPDSTADDR_IN6	_IOWR('i', 72, struct in6_ifreq)
    349    1.2    itojun 
    350    1.2    itojun #define SIOCGIFAFLAG_IN6	_IOWR('i', 73, struct in6_ifreq)
    351    1.2    itojun 
    352  1.103       roy /*
    353  1.103       roy  * 74 was SIOCGDRLST_IN6
    354  1.103       roy  * 75 was SIOCGPRLST_IN6
    355  1.103       roy  * 76 was OSIOCGIFINFO_IN6
    356  1.103       roy  * 77 was SIOCSNDFLUSH_IN6
    357  1.103       roy  */
    358    1.2    itojun #define SIOCGNBRINFO_IN6	_IOWR('i', 78, struct in6_nbrinfo)
    359  1.103       roy /*
    360  1.103       roy  * 79 was SIOCSPFXFLUSH_IN6
    361  1.103       roy  * 80 was SIOCSRTRFLUSH_IN6
    362  1.103       roy  * 81 was SIOCGIFALIFETIME_IN6
    363  1.103       roy  */
    364   1.53       gdt #if 0
    365   1.53       gdt /* withdrawn - do not reuse number 82 */
    366    1.2    itojun #define SIOCSIFALIFETIME_IN6	_IOWR('i', 82, struct in6_ifreq)
    367   1.53       gdt #endif
    368    1.5    itojun #define SIOCGIFSTAT_IN6		_IOWR('i', 83, struct in6_ifreq)
    369    1.5    itojun #define SIOCGIFSTAT_ICMP6	_IOWR('i', 84, struct in6_ifreq)
    370    1.5    itojun 
    371  1.103       roy /*
    372  1.103       roy  * 85 was SIOCSDEFIFACE_IN6
    373  1.103       roy  * 86 was SIOCGDEFIFACE_IN6
    374  1.103       roy  * 87 was OSIOCSIFINFO_FLAGS
    375  1.103       roy  * 100 was SIOCSIFPREFIX_IN6
    376  1.103       roy  * 101 was SIOCGIFPREFIX_IN6
    377  1.103       roy  * 102 was SIOCDIFPREFIX_IN6
    378  1.103       roy  * 103 was SIOCAIFPREFIX_IN6
    379  1.103       roy  * 104 was SIOCCIFPREFIX_IN6
    380  1.103       roy  * 105 was SIOCSGIFPREFIX_IN6
    381  1.103       roy  */
    382   1.62  christos #define SIOCGIFALIFETIME_IN6	_IOWR('i', 106, struct in6_ifreq)
    383   1.63  christos #define SIOCAIFADDR_IN6		_IOW('i', 107, struct in6_aliasreq)
    384  1.103       roy /* 108 was OSIOCGIFINFO_IN6_90
    385  1.103       roy  * 109 was OSIOCSIFINFO_IN6_90 */
    386   1.63  christos #define SIOCSIFPHYADDR_IN6      _IOW('i', 110, struct in6_aliasreq)
    387  1.103       roy /* 110 - 112 are defined in net/if_pppoe.h */
    388  1.103       roy #define SIOCGIFINFO_IN6		_IOWR('i', 113, struct in6_ndireq)
    389  1.103       roy #define SIOCSIFINFO_IN6		_IOWR('i', 114, struct in6_ndireq)
    390  1.103       roy #define SIOCSIFINFO_FLAGS	_IOWR('i', 115, struct in6_ndireq)
    391    1.2    itojun 
    392   1.62  christos /* XXX: Someone decided to switch to 'u' here for unknown reasons! */
    393    1.2    itojun #define SIOCGETSGCNT_IN6	_IOWR('u', 106, \
    394    1.2    itojun 				      struct sioc_sg_req6) /* get s,g pkt cnt */
    395    1.2    itojun #define SIOCGETMIFCNT_IN6	_IOWR('u', 107, \
    396    1.2    itojun 				      struct sioc_mif_req6) /* get pkt cnt per if */
    397   1.41    rpaulo #define SIOCAADDRCTL_POLICY	_IOW('u', 108, struct in6_addrpolicy)
    398   1.41    rpaulo #define SIOCDADDRCTL_POLICY	_IOW('u', 109, struct in6_addrpolicy)
    399    1.2    itojun 
    400    1.2    itojun #define IN6_IFF_ANYCAST		0x01	/* anycast address */
    401    1.2    itojun #define IN6_IFF_TENTATIVE	0x02	/* tentative address */
    402    1.2    itojun #define IN6_IFF_DUPLICATED	0x04	/* DAD detected duplicate */
    403    1.2    itojun #define IN6_IFF_DETACHED	0x08	/* may be detached from the link */
    404    1.2    itojun #define IN6_IFF_DEPRECATED	0x10	/* deprecated address */
    405   1.32    itojun #define IN6_IFF_NODAD		0x20	/* don't perform DAD on this address
    406   1.32    itojun 					 * (used only at first SIOC* call)
    407   1.32    itojun 					 */
    408   1.32    itojun #define IN6_IFF_AUTOCONF	0x40	/* autoconfigurable address. */
    409   1.43    rpaulo #define IN6_IFF_TEMPORARY	0x80	/* temporary (anonymous) address. */
    410    1.2    itojun 
    411   1.86  christos #define IN6_IFFBITS \
    412   1.87  christos     "\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \
    413   1.85  christos     "\7AUTOCONF\10TEMPORARY"
    414   1.85  christos 
    415   1.85  christos 
    416    1.2    itojun /* do not input/output */
    417    1.2    itojun #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
    418   1.11    itojun 
    419   1.11    itojun #ifdef _KERNEL
    420   1.11    itojun #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
    421   1.11    itojun #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
    422   1.11    itojun #endif
    423    1.2    itojun 
    424    1.2    itojun #ifdef _KERNEL
    425   1.69     rmind 
    426   1.84     ozaki #include <sys/mutex.h>
    427   1.84     ozaki #include <sys/pserialize.h>
    428   1.84     ozaki 
    429   1.69     rmind #include <net/pktqueue.h>
    430   1.69     rmind 
    431   1.69     rmind extern pktqueue_t *ip6_pktq;
    432   1.69     rmind 
    433   1.34   thorpej MALLOC_DECLARE(M_IP6OPT);
    434   1.34   thorpej 
    435   1.84     ozaki extern struct pslist_head	in6_ifaddr_list;
    436   1.84     ozaki extern kmutex_t			in6_ifaddr_lock;
    437   1.78     ozaki 
    438   1.78     ozaki #define IN6_ADDRLIST_ENTRY_INIT(__ia) \
    439   1.78     ozaki 	PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry)
    440   1.80     ozaki #define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \
    441   1.80     ozaki 	PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry)
    442   1.78     ozaki #define IN6_ADDRLIST_READER_EMPTY() \
    443   1.78     ozaki 	(PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
    444   1.78     ozaki 	                     ia6_pslist_entry) == NULL)
    445   1.78     ozaki #define IN6_ADDRLIST_READER_FIRST() \
    446   1.78     ozaki 	PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
    447   1.78     ozaki 	                    ia6_pslist_entry)
    448   1.78     ozaki #define IN6_ADDRLIST_READER_NEXT(__ia) \
    449   1.78     ozaki 	PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
    450   1.78     ozaki #define IN6_ADDRLIST_READER_FOREACH(__ia) \
    451   1.78     ozaki 	PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \
    452   1.78     ozaki 	                      struct in6_ifaddr, ia6_pslist_entry)
    453   1.78     ozaki #define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \
    454   1.78     ozaki 	PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry)
    455   1.78     ozaki #define IN6_ADDRLIST_WRITER_REMOVE(__ia) \
    456   1.78     ozaki 	PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry)
    457   1.78     ozaki #define IN6_ADDRLIST_WRITER_FOREACH(__ia) \
    458   1.78     ozaki 	PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \
    459   1.78     ozaki 	                      ia6_pslist_entry)
    460   1.78     ozaki #define IN6_ADDRLIST_WRITER_FIRST() \
    461   1.78     ozaki 	PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
    462   1.78     ozaki 	                    ia6_pslist_entry)
    463   1.78     ozaki #define IN6_ADDRLIST_WRITER_NEXT(__ia) \
    464   1.78     ozaki 	PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
    465   1.78     ozaki #define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \
    466   1.78     ozaki 	PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry)
    467   1.78     ozaki #define IN6_ADDRLIST_WRITER_EMPTY() \
    468   1.78     ozaki 	(PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
    469   1.78     ozaki 	    ia6_pslist_entry) == NULL)
    470   1.78     ozaki #define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new)				\
    471   1.78     ozaki 	do {								\
    472   1.78     ozaki 		if (IN6_ADDRLIST_WRITER_EMPTY()) {			\
    473   1.78     ozaki 			IN6_ADDRLIST_WRITER_INSERT_HEAD((__new));	\
    474   1.78     ozaki 		} else {						\
    475   1.78     ozaki 			struct in6_ifaddr *__ia;			\
    476   1.78     ozaki 			IN6_ADDRLIST_WRITER_FOREACH(__ia) {		\
    477   1.78     ozaki 				if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \
    478   1.78     ozaki 					IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\
    479   1.78     ozaki 					    (__new));			\
    480   1.78     ozaki 					break;				\
    481   1.78     ozaki 				}					\
    482   1.78     ozaki 			}						\
    483   1.78     ozaki 		}							\
    484   1.78     ozaki 	} while (0)
    485    1.5    itojun 
    486    1.5    itojun #define in6_ifstat_inc(ifp, tag) \
    487    1.5    itojun do {								\
    488   1.26    itojun 	if (ifp)						\
    489   1.26    itojun 		((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
    490   1.33     perry } while (/*CONSTCOND*/ 0)
    491    1.5    itojun 
    492   1.60      matt extern const struct in6_addr zeroin6_addr;
    493   1.60      matt extern const u_char inet6ctlerrmap[];
    494   1.67     pooka extern bool in6_present;
    495    1.2    itojun #endif /* _KERNEL */
    496    1.2    itojun 
    497    1.2    itojun /*
    498    1.2    itojun  * Multi-cast membership entry.  One for each group/ifp that a PCB
    499    1.2    itojun  * belongs to.
    500    1.2    itojun  */
    501    1.2    itojun struct in6_multi_mship {
    502    1.2    itojun 	struct	in6_multi *i6mm_maddr;	/* Multicast address pointer */
    503    1.2    itojun 	LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
    504    1.2    itojun };
    505    1.2    itojun 
    506    1.2    itojun struct	in6_multi {
    507    1.2    itojun 	LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
    508    1.2    itojun 	struct	in6_addr in6m_addr;	/* IP6 multicast address */
    509    1.2    itojun 	struct	ifnet *in6m_ifp;	/* back pointer to ifnet */
    510   1.93     ozaki 	/* DEPRECATED. Keep it to avoid breaking kvm(3) users */
    511   1.93     ozaki 	struct	in6_ifaddr *_in6m_ia;	/* back pointer to in6_ifaddr */
    512    1.2    itojun 	u_int	in6m_refcount;		/* # membership claims by sockets */
    513    1.2    itojun 	u_int	in6m_state;		/* state of the membership */
    514   1.43    rpaulo 	int	in6m_timer;		/* delay to send the 1st report */
    515   1.43    rpaulo 	struct timeval in6m_timer_expire; /* when the timer expires */
    516   1.54     joerg 	callout_t in6m_timer_ch;
    517    1.2    itojun };
    518   1.43    rpaulo 
    519   1.43    rpaulo #define IN6M_TIMER_UNDEF -1
    520   1.43    rpaulo 
    521    1.2    itojun 
    522    1.2    itojun #ifdef _KERNEL
    523   1.43    rpaulo /* flags to in6_update_ifa */
    524   1.43    rpaulo #define IN6_IFAUPDATE_DADDELAY	0x1 /* first time to configure an address */
    525    1.5    itojun 
    526   1.52    dyoung #if 0
    527   1.43    rpaulo /*
    528   1.43    rpaulo  * Macros for looking up the in6_multi_mship record for a given IP6 multicast
    529   1.43    rpaulo  * address on a given interface. If no matching record is found, "imm"
    530   1.43    rpaulo  * returns NULL.
    531   1.43    rpaulo  */
    532   1.98  christos static __inline struct in6_multi_mship *
    533   1.52    dyoung in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp,
    534   1.52    dyoung     struct ip6_moptions *imop)
    535   1.52    dyoung {
    536   1.52    dyoung 	struct in6_multi_mship *imm;
    537   1.52    dyoung 
    538   1.52    dyoung 	LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) {
    539   1.52    dyoung 		if (imm->i6mm_maddr->in6m_ifp != ifp)
    540   1.52    dyoung 		    	continue;
    541   1.52    dyoung 		if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
    542   1.52    dyoung 		    addr))
    543   1.52    dyoung 			break;
    544   1.52    dyoung 	}
    545   1.52    dyoung 	return imm;
    546   1.52    dyoung }
    547   1.52    dyoung 
    548   1.52    dyoung #define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm)			\
    549   1.52    dyoung /* struct in6_addr __addr; */						\
    550   1.52    dyoung /* struct ifnet *__ifp; */						\
    551   1.52    dyoung /* struct ip6_moptions *__imop */					\
    552   1.52    dyoung /* struct in6_multi_mship *__imm; */					\
    553   1.43    rpaulo do {									\
    554   1.52    dyoung 	(__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop));	\
    555   1.43    rpaulo } while (/*CONSTCOND*/ 0)
    556   1.52    dyoung #endif
    557   1.43    rpaulo 
    558   1.81     ozaki void	in6_init(void);
    559   1.81     ozaki 
    560   1.96     ozaki void	in6_multi_lock(int);
    561   1.96     ozaki void	in6_multi_unlock(void);
    562   1.97     ozaki bool	in6_multi_locked(int);
    563   1.93     ozaki struct in6_multi *
    564   1.93     ozaki 	in6_lookup_multi(const struct in6_addr *, const struct ifnet *);
    565   1.94     ozaki bool	in6_multi_group(const struct in6_addr *, const struct ifnet *);
    566   1.93     ozaki void	in6_purge_multi(struct ifnet *);
    567   1.48    dyoung struct	in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
    568   1.48    dyoung 	int *, int);
    569   1.48    dyoung void	in6_delmulti(struct in6_multi *);
    570   1.99     ozaki void	in6_delmulti_locked(struct in6_multi *);
    571  1.100     ozaki void	in6_lookup_and_delete_multi(const struct in6_addr *,
    572  1.100     ozaki 	    const struct ifnet *);
    573   1.48    dyoung struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *,
    574   1.48    dyoung 	int *, int);
    575   1.48    dyoung int	in6_leavegroup(struct in6_multi_mship *);
    576   1.48    dyoung int	in6_mask2len(struct in6_addr *, u_char *);
    577   1.70       rtr int	in6_control(struct socket *, u_long, void *, struct ifnet *);
    578   1.88  christos int	in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int);
    579   1.48    dyoung void	in6_purgeaddr(struct ifaddr *);
    580   1.48    dyoung void	in6_purgeif(struct ifnet *);
    581   1.48    dyoung void	*in6_domifattach(struct ifnet *);
    582   1.48    dyoung void	in6_domifdetach(struct ifnet *, void *);
    583   1.72       roy void	in6_ifremlocal(struct ifaddr *);
    584   1.72       roy void	in6_ifaddlocal(struct ifaddr *);
    585   1.84     ozaki struct in6_ifaddr *
    586   1.84     ozaki 	in6ifa_ifpforlinklocal(const struct ifnet *, int);
    587   1.84     ozaki struct in6_ifaddr *
    588   1.84     ozaki 	in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *);
    589   1.84     ozaki struct in6_ifaddr *
    590   1.84     ozaki 	in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *);
    591   1.84     ozaki struct in6_ifaddr *
    592   1.84     ozaki 	in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *,
    593   1.84     ozaki 	    struct psref *);
    594   1.75     ozaki struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t);
    595  1.106     ozaki struct ifaddr *
    596  1.106     ozaki 	in6ifa_first_lladdr(const struct ifnet *);
    597  1.106     ozaki struct ifaddr *
    598  1.106     ozaki 	in6ifa_first_lladdr_psref(const struct ifnet *, struct psref *);
    599  1.106     ozaki 
    600   1.48    dyoung int	in6_matchlen(struct in6_addr *, struct in6_addr *);
    601   1.48    dyoung void	in6_prefixlen2mask(struct in6_addr *, int);
    602   1.95     ozaki void	in6_purge_mcast_references(struct in6_multi *);
    603   1.17    itojun 
    604   1.66  christos int	ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */
    605   1.51  liamjfoy 
    606   1.50  christos int in6_src_ioctl(u_long, void *);
    607   1.48    dyoung int	in6_is_addr_deprecated(struct sockaddr_in6 *);
    608   1.17    itojun struct in6pcb;
    609   1.75     ozaki 
    610   1.75     ozaki #define	LLTABLE6(ifp)	(((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
    611   1.75     ozaki 
    612   1.89     ozaki void	in6_sysctl_multicast_setup(struct sysctllog **);
    613   1.89     ozaki 
    614    1.2    itojun #endif /* _KERNEL */
    615    1.2    itojun 
    616   1.40      elad #endif /* !_NETINET6_IN6_VAR_H_ */
    617