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nd6.h revision 1.60.2.5
      1  1.60.2.5     skrll /*	$NetBSD: nd6.h,v 1.60.2.5 2017/02/05 13:40:59 skrll Exp $	*/
      2      1.31    itojun /*	$KAME: nd6.h,v 1.95 2002/06/08 11:31:06 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      1.11    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      1.11    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 #ifndef _NETINET6_ND6_H_
     34       1.2    itojun #define _NETINET6_ND6_H_
     35       1.2    itojun 
     36       1.2    itojun #include <sys/queue.h>
     37      1.10   thorpej #include <sys/callout.h>
     38       1.2    itojun 
     39      1.57  christos #define ND6_LLINFO_PURGE	-3
     40       1.2    itojun #define ND6_LLINFO_NOSTATE	-2
     41      1.19    itojun /*
     42      1.19    itojun  * We don't need the WAITDELETE state any more, but we keep the definition
     43      1.19    itojun  * in a comment line instead of removing it. This is necessary to avoid
     44      1.19    itojun  * unintentionally reusing the value for another purpose, which might
     45      1.19    itojun  * affect backward compatibility with old applications.
     46      1.19    itojun  * (20000711 jinmei (at) kame.net)
     47      1.19    itojun  */
     48      1.19    itojun /* #define ND6_LLINFO_WAITDELETE	-1 */
     49       1.2    itojun #define ND6_LLINFO_INCOMPLETE	0
     50       1.2    itojun #define ND6_LLINFO_REACHABLE	1
     51       1.2    itojun #define ND6_LLINFO_STALE	2
     52       1.2    itojun #define ND6_LLINFO_DELAY	3
     53       1.2    itojun #define ND6_LLINFO_PROBE	4
     54       1.2    itojun 
     55       1.6    itojun #define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
     56      1.41    rpaulo #define ND6_LLINFO_PERMANENT(n)	(((n)->ln_expire == 0) && ((n)->ln_state > ND6_LLINFO_INCOMPLETE))
     57      1.26    itojun 
     58       1.2    itojun struct nd_ifinfo {
     59       1.2    itojun 	u_int32_t linkmtu;		/* LinkMTU */
     60       1.2    itojun 	u_int32_t maxmtu;		/* Upper bound of LinkMTU */
     61       1.2    itojun 	u_int32_t basereachable;	/* BaseReachableTime */
     62       1.2    itojun 	u_int32_t reachable;		/* Reachable Time */
     63       1.2    itojun 	u_int32_t retrans;		/* Retrans Timer */
     64      1.12    itojun 	u_int32_t flags;		/* Flags */
     65       1.6    itojun 	int recalctm;			/* BaseReacable re-calculation timer */
     66       1.2    itojun 	u_int8_t chlim;			/* CurHopLimit */
     67      1.26    itojun 	u_int8_t initialized; /* Flag to see the entry is initialized */
     68      1.26    itojun 	/* the following 3 members are for privacy extension for addrconf */
     69      1.26    itojun 	u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
     70      1.26    itojun 	u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
     71      1.26    itojun 	u_int8_t randomid[8];	/* current random ID */
     72       1.2    itojun };
     73      1.12    itojun 
     74      1.53    dyoung #define ND6_IFF_PERFORMNUD	0x01
     75      1.53    dyoung #define ND6_IFF_ACCEPT_RTADV	0x02	/* See "RTADV Key", below. */
     76      1.53    dyoung #define ND6_IFF_PREFER_SOURCE	0x04	/* XXX: not related to ND. */
     77      1.53    dyoung #define ND6_IFF_IFDISABLED	0x08	/* IPv6 operation is disabled due to
     78      1.53    dyoung 					 * DAD failure.  (XXX: not ND-specific)
     79      1.53    dyoung 					 */
     80      1.53    dyoung #define	ND6_IFF_OVERRIDE_RTADV	0x10	/* See "RTADV Key", below. */
     81      1.59       roy #define	ND6_IFF_AUTO_LINKLOCAL	0x20
     82      1.53    dyoung 
     83      1.53    dyoung /*
     84      1.53    dyoung  * RTADV Key
     85      1.53    dyoung  *
     86      1.53    dyoung  * The flags ND6_IFF_ACCEPT_RTADV and ND6_IFF_OVERRIDE_RTADV form a
     87      1.53    dyoung  * tri-state variable.  (There are actually four different states, but
     88      1.53    dyoung  * two of the states are functionally identical.)
     89      1.53    dyoung  *
     90      1.53    dyoung  * ND6_IFF_OVERRIDE_RTADV or 0:	This interface does not accept
     91      1.53    dyoung  *				Router Advertisements.
     92      1.53    dyoung  *
     93      1.53    dyoung  * ND6_IFF_OVERRIDE_RTADV|
     94      1.53    dyoung  * ND6_IFF_ACCEPT_RTADV:	This interface accepts Router
     95      1.53    dyoung  *				Advertisements regardless of the
     96      1.53    dyoung  *				global setting, ip6_accept_rtadv.
     97      1.53    dyoung  *
     98      1.53    dyoung  * ND6_IFF_ACCEPT_RTADV:	This interface follows the global setting,
     99      1.53    dyoung  *				ip6_accept_rtadv.  If ip6_accept_rtadv == 0,
    100      1.53    dyoung  *				this interface does not accept Router
    101      1.53    dyoung  *				Advertisements.  If ip6_accept_rtadv != 0,
    102      1.53    dyoung  *				this interface does accept them.
    103      1.53    dyoung  */
    104       1.2    itojun 
    105      1.26    itojun #ifdef _KERNEL
    106      1.26    itojun #define ND_IFINFO(ifp) \
    107      1.26    itojun 	(((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->nd_ifinfo)
    108      1.26    itojun #define IN6_LINKMTU(ifp) \
    109      1.26    itojun 	((ND_IFINFO(ifp)->linkmtu && ND_IFINFO(ifp)->linkmtu < (ifp)->if_mtu) \
    110      1.29    itojun 	    ? ND_IFINFO(ifp)->linkmtu \
    111      1.30    itojun 	    : ((ND_IFINFO(ifp)->maxmtu && ND_IFINFO(ifp)->maxmtu < (ifp)->if_mtu) \
    112      1.29    itojun 		? ND_IFINFO(ifp)->maxmtu : (ifp)->if_mtu))
    113      1.26    itojun #endif
    114      1.26    itojun 
    115       1.2    itojun struct in6_nbrinfo {
    116       1.2    itojun 	char ifname[IFNAMSIZ];	/* if name, e.g. "en0" */
    117       1.2    itojun 	struct in6_addr addr;	/* IPv6 address of the neighbor */
    118       1.2    itojun 	long	asked;		/* number of queries already sent for this addr */
    119       1.2    itojun 	int	isrouter;	/* if it acts as a router */
    120       1.2    itojun 	int	state;		/* reachability state */
    121       1.2    itojun 	int	expire;		/* lifetime for NDP state transition */
    122       1.2    itojun };
    123       1.2    itojun 
    124       1.2    itojun #define DRLSTSIZ 10
    125       1.2    itojun #define PRLSTSIZ 10
    126       1.2    itojun struct	in6_drlist {
    127       1.2    itojun 	char ifname[IFNAMSIZ];
    128       1.2    itojun 	struct {
    129       1.2    itojun 		struct	in6_addr rtaddr;
    130       1.2    itojun 		u_char	flags;
    131       1.2    itojun 		u_short	rtlifetime;
    132       1.2    itojun 		u_long	expire;
    133       1.2    itojun 		u_short if_index;
    134       1.2    itojun 	} defrouter[DRLSTSIZ];
    135       1.2    itojun };
    136       1.2    itojun 
    137      1.31    itojun struct	in6_defrouter {
    138      1.31    itojun 	struct	sockaddr_in6 rtaddr;
    139      1.31    itojun 	u_char	flags;
    140      1.31    itojun 	u_short	rtlifetime;
    141      1.31    itojun 	u_long	expire;
    142      1.31    itojun 	u_short if_index;
    143      1.31    itojun };
    144      1.31    itojun 
    145      1.31    itojun #ifdef _KERNEL
    146      1.31    itojun struct	in6_oprlist {
    147      1.31    itojun 	char ifname[IFNAMSIZ];
    148      1.31    itojun 	struct {
    149      1.31    itojun 		struct	in6_addr prefix;
    150      1.31    itojun 		struct prf_ra raflags;
    151      1.31    itojun 		u_char	prefixlen;
    152      1.31    itojun 		u_char	origin;
    153      1.31    itojun 		u_long vltime;
    154      1.31    itojun 		u_long pltime;
    155      1.31    itojun 		u_long expire;
    156      1.31    itojun 		u_short if_index;
    157      1.31    itojun 		u_short advrtrs; /* number of advertisement routers */
    158      1.31    itojun 		struct	in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
    159      1.31    itojun 	} prefix[PRLSTSIZ];
    160      1.31    itojun };
    161      1.31    itojun #endif
    162      1.31    itojun 
    163       1.2    itojun struct	in6_prlist {
    164       1.2    itojun 	char ifname[IFNAMSIZ];
    165       1.2    itojun 	struct {
    166       1.2    itojun 		struct	in6_addr prefix;
    167       1.2    itojun 		struct prf_ra raflags;
    168       1.2    itojun 		u_char	prefixlen;
    169       1.9    itojun 		u_char	origin;
    170      1.31    itojun 		u_int32_t vltime;
    171      1.31    itojun 		u_int32_t pltime;
    172      1.31    itojun 		time_t expire;
    173       1.2    itojun 		u_short if_index;
    174       1.2    itojun 		u_short advrtrs; /* number of advertisement routers */
    175       1.2    itojun 		struct	in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
    176       1.2    itojun 	} prefix[PRLSTSIZ];
    177       1.2    itojun };
    178       1.2    itojun 
    179      1.31    itojun struct in6_prefix {
    180      1.31    itojun 	struct	sockaddr_in6 prefix;
    181      1.31    itojun 	struct prf_ra raflags;
    182      1.31    itojun 	u_char	prefixlen;
    183      1.31    itojun 	u_char	origin;
    184      1.31    itojun 	u_int32_t vltime;
    185      1.31    itojun 	u_int32_t pltime;
    186      1.31    itojun 	time_t expire;
    187      1.31    itojun 	u_int32_t flags;
    188      1.31    itojun 	int refcnt;
    189      1.31    itojun 	u_short if_index;
    190      1.31    itojun 	u_short advrtrs; /* number of advertisement routers */
    191      1.31    itojun 	/* struct sockaddr_in6 advrtr[] */
    192      1.31    itojun };
    193      1.31    itojun 
    194      1.26    itojun #ifdef _KERNEL
    195      1.26    itojun struct	in6_ondireq {
    196      1.26    itojun 	char ifname[IFNAMSIZ];
    197      1.26    itojun 	struct {
    198      1.26    itojun 		u_int32_t linkmtu;	/* LinkMTU */
    199      1.26    itojun 		u_int32_t maxmtu;	/* Upper bound of LinkMTU */
    200      1.26    itojun 		u_int32_t basereachable; /* BaseReachableTime */
    201      1.26    itojun 		u_int32_t reachable;	/* Reachable Time */
    202      1.26    itojun 		u_int32_t retrans;	/* Retrans Timer */
    203      1.26    itojun 		u_int32_t flags;	/* Flags */
    204      1.26    itojun 		int recalctm;		/* BaseReacable re-calculation timer */
    205      1.26    itojun 		u_int8_t chlim;		/* CurHopLimit */
    206      1.26    itojun 		u_int8_t receivedra;
    207      1.26    itojun 	} ndi;
    208      1.26    itojun };
    209      1.26    itojun #endif
    210      1.26    itojun 
    211       1.2    itojun struct	in6_ndireq {
    212       1.2    itojun 	char ifname[IFNAMSIZ];
    213       1.2    itojun 	struct nd_ifinfo ndi;
    214       1.2    itojun };
    215       1.2    itojun 
    216       1.6    itojun struct	in6_ndifreq {
    217       1.6    itojun 	char ifname[IFNAMSIZ];
    218       1.6    itojun 	u_long ifindex;
    219       1.6    itojun };
    220       1.6    itojun 
    221      1.31    itojun /* Prefix status */
    222      1.31    itojun #define NDPRF_ONLINK		0x1
    223      1.31    itojun #define NDPRF_DETACHED		0x2
    224      1.31    itojun #define NDPRF_HOME		0x4
    225       1.6    itojun 
    226       1.2    itojun /* protocol constants */
    227      1.24    itojun #define MAX_RTR_SOLICITATION_DELAY	1	/* 1sec */
    228      1.24    itojun #define RTR_SOLICITATION_INTERVAL	4	/* 4sec */
    229       1.2    itojun #define MAX_RTR_SOLICITATIONS		3
    230       1.2    itojun 
    231      1.52  christos #define ND6_INFINITE_LIFETIME		((u_int32_t)~0)
    232       1.2    itojun 
    233       1.2    itojun #ifdef _KERNEL
    234       1.2    itojun /* node constants */
    235       1.2    itojun #define MAX_REACHABLE_TIME		3600000	/* msec */
    236       1.2    itojun #define REACHABLE_TIME			30000	/* msec */
    237       1.2    itojun #define RETRANS_TIMER			1000	/* msec */
    238       1.2    itojun #define MIN_RANDOM_FACTOR		512	/* 1024 * 0.5 */
    239       1.2    itojun #define MAX_RANDOM_FACTOR		1536	/* 1024 * 1.5 */
    240      1.41    rpaulo #define DEF_TEMP_VALID_LIFETIME		604800	/* 1 week */
    241      1.41    rpaulo #define DEF_TEMP_PREFERRED_LIFETIME	86400	/* 1 day */
    242      1.41    rpaulo #define TEMPADDR_REGEN_ADVANCE		5	/* sec */
    243      1.41    rpaulo #define MAX_TEMP_DESYNC_FACTOR		600	/* 10 min */
    244       1.2    itojun #define ND_COMPUTE_RTIME(x) \
    245      1.56       tls 		(((MIN_RANDOM_FACTOR * (x >> 10)) + (cprng_fast32() & \
    246       1.2    itojun 		((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
    247       1.2    itojun 
    248       1.6    itojun TAILQ_HEAD(nd_drhead, nd_defrouter);
    249       1.2    itojun struct	nd_defrouter {
    250       1.6    itojun 	TAILQ_ENTRY(nd_defrouter) dr_entry;
    251       1.2    itojun 	struct	in6_addr rtaddr;
    252      1.31    itojun 	u_char	flags;		/* flags on RA message */
    253       1.2    itojun 	u_short	rtlifetime;
    254       1.2    itojun 	u_long	expire;
    255       1.2    itojun 	struct  ifnet *ifp;
    256      1.31    itojun 	int	installed;	/* is installed into kernel routing table */
    257       1.2    itojun };
    258       1.2    itojun 
    259  1.60.2.5     skrll #define ND_DEFROUTER_LIST_INIT()					\
    260  1.60.2.5     skrll 	TAILQ_INIT(&nd_defrouter)
    261  1.60.2.5     skrll #define ND_DEFROUTER_LIST_FOREACH(dr)					\
    262  1.60.2.5     skrll 	TAILQ_FOREACH((dr), &nd_defrouter, dr_entry)
    263  1.60.2.5     skrll #define ND_DEFROUTER_LIST_FOREACH_SAFE(dr, dr_next)			\
    264  1.60.2.5     skrll 	TAILQ_FOREACH_SAFE((dr), &nd_defrouter, dr_entry, (dr_next))
    265  1.60.2.5     skrll #define ND_DEFROUTER_LIST_EMPTY()					\
    266  1.60.2.5     skrll 	TAILQ_EMPTY(&nd_defrouter)
    267  1.60.2.5     skrll #define ND_DEFROUTER_LIST_REMOVE(dr)					\
    268  1.60.2.5     skrll 	TAILQ_REMOVE(&nd_defrouter, (dr), dr_entry)
    269  1.60.2.5     skrll #define ND_DEFROUTER_LIST_INSERT_BEFORE(dr, dr_new)			\
    270  1.60.2.5     skrll 	TAILQ_INSERT_BEFORE((dr), (dr_new), dr_entry)
    271  1.60.2.5     skrll #define ND_DEFROUTER_LIST_INSERT_TAIL(dr)				\
    272  1.60.2.5     skrll 	TAILQ_INSERT_TAIL(&nd_defrouter, (dr), dr_entry)
    273  1.60.2.5     skrll #define ND_DEFROUTER_LIST_FIRST()					\
    274  1.60.2.5     skrll 	TAILQ_FIRST(&nd_defrouter)
    275  1.60.2.5     skrll #define ND_DEFROUTER_LIST_NEXT(dr)					\
    276  1.60.2.5     skrll 	TAILQ_NEXT((dr), dr_entry)
    277  1.60.2.5     skrll 
    278      1.41    rpaulo struct nd_prefixctl {
    279      1.60      matt 	struct ifnet *ndprc_ifp;
    280      1.41    rpaulo 
    281      1.41    rpaulo 	/* prefix */
    282      1.60      matt 	struct sockaddr_in6 ndprc_prefix;
    283      1.60      matt 	u_char	ndprc_plen;
    284      1.41    rpaulo 
    285      1.60      matt 	u_int32_t ndprc_vltime;	/* advertised valid lifetime */
    286      1.60      matt 	u_int32_t ndprc_pltime;	/* advertised preferred lifetime */
    287      1.41    rpaulo 
    288      1.60      matt 	struct prf_ra ndprc_flags;
    289      1.41    rpaulo };
    290      1.41    rpaulo 
    291      1.60      matt #define ndprc_raf		ndprc_flags
    292      1.60      matt #define ndprc_raf_onlink	ndprc_flags.onlink
    293      1.60      matt #define ndprc_raf_auto		ndprc_flags.autonomous
    294      1.60      matt #define ndprc_raf_router	ndprc_flags.router
    295      1.60      matt 
    296       1.2    itojun struct nd_prefix {
    297       1.6    itojun 	struct ifnet *ndpr_ifp;
    298       1.2    itojun 	LIST_ENTRY(nd_prefix) ndpr_entry;
    299       1.2    itojun 	struct sockaddr_in6 ndpr_prefix;	/* prefix */
    300       1.2    itojun 	struct in6_addr ndpr_mask; /* netmask derived from the prefix */
    301      1.31    itojun 
    302       1.2    itojun 	u_int32_t ndpr_vltime;	/* advertised valid lifetime */
    303       1.2    itojun 	u_int32_t ndpr_pltime;	/* advertised preferred lifetime */
    304      1.31    itojun 
    305       1.2    itojun 	time_t ndpr_expire;	/* expiration time of the prefix */
    306       1.2    itojun 	time_t ndpr_preferred;	/* preferred time of the prefix */
    307      1.31    itojun 	time_t ndpr_lastupdate; /* reception time of last advertisement */
    308      1.31    itojun 
    309       1.6    itojun 	struct prf_ra ndpr_flags;
    310      1.31    itojun 	u_int32_t ndpr_stateflags; /* actual state flags */
    311       1.2    itojun 	/* list of routers that advertise the prefix: */
    312       1.2    itojun 	LIST_HEAD(pr_rtrhead, nd_pfxrouter) ndpr_advrtrs;
    313       1.6    itojun 	u_char	ndpr_plen;
    314      1.31    itojun 	int	ndpr_refcnt;	/* reference couter from addresses */
    315       1.2    itojun };
    316       1.2    itojun 
    317      1.57  christos #define ndpr_next		ndpr_entry.le_next
    318      1.57  christos 
    319       1.6    itojun #define ndpr_raf		ndpr_flags
    320       1.6    itojun #define ndpr_raf_onlink		ndpr_flags.onlink
    321       1.6    itojun #define ndpr_raf_auto		ndpr_flags.autonomous
    322      1.31    itojun #define ndpr_raf_router		ndpr_flags.router
    323       1.2    itojun 
    324  1.60.2.5     skrll #define ND_PREFIX_LIST_FOREACH(pr)					\
    325  1.60.2.5     skrll 	LIST_FOREACH((pr), &nd_prefix, ndpr_entry)
    326  1.60.2.5     skrll #define ND_PREFIX_LIST_FOREACH_SAFE(pr, pr_next)			\
    327  1.60.2.5     skrll 	LIST_FOREACH_SAFE((pr), &nd_prefix, ndpr_entry, (pr_next))
    328  1.60.2.5     skrll #define ND_PREFIX_LIST_REMOVE(pr)					\
    329  1.60.2.5     skrll 	LIST_REMOVE((pr), ndpr_entry)
    330  1.60.2.5     skrll #define ND_PREFIX_LIST_INSERT_HEAD(pr)					\
    331  1.60.2.5     skrll 	LIST_INSERT_HEAD(&nd_prefix, (pr), ndpr_entry)
    332  1.60.2.5     skrll 
    333       1.2    itojun /*
    334       1.2    itojun  * Message format for use in obtaining information about prefixes
    335       1.2    itojun  * from inet6 sysctl function
    336       1.2    itojun  */
    337       1.2    itojun struct inet6_ndpr_msghdr {
    338       1.2    itojun 	u_short	inpm_msglen;	/* to skip over non-understood messages */
    339      1.21       wiz 	u_char	inpm_version;	/* future binary compatibility */
    340       1.2    itojun 	u_char	inpm_type;	/* message type */
    341       1.2    itojun 	struct in6_addr inpm_prefix;
    342       1.2    itojun 	u_long	prm_vltim;
    343       1.2    itojun 	u_long	prm_pltime;
    344       1.2    itojun 	u_long	prm_expire;
    345       1.2    itojun 	u_long	prm_preferred;
    346       1.2    itojun 	struct in6_prflags prm_flags;
    347       1.2    itojun 	u_short	prm_index;	/* index for associated ifp */
    348       1.2    itojun 	u_char	prm_plen;	/* length of prefix in bits */
    349       1.2    itojun };
    350       1.2    itojun 
    351       1.2    itojun #define prm_raf_onlink		prm_flags.prf_ra.onlink
    352       1.2    itojun #define prm_raf_auto		prm_flags.prf_ra.autonomous
    353       1.2    itojun 
    354       1.2    itojun #define prm_statef_onlink	prm_flags.prf_state.onlink
    355       1.2    itojun 
    356       1.2    itojun #define prm_rrf_decrvalid	prm_flags.prf_rr.decrvalid
    357       1.2    itojun #define prm_rrf_decrprefd	prm_flags.prf_rr.decrprefd
    358       1.2    itojun 
    359       1.2    itojun struct nd_pfxrouter {
    360       1.2    itojun 	LIST_ENTRY(nd_pfxrouter) pfr_entry;
    361       1.2    itojun 	struct nd_defrouter *router;
    362       1.2    itojun };
    363       1.2    itojun 
    364       1.2    itojun LIST_HEAD(nd_prhead, nd_prefix);
    365      1.34   thorpej 
    366      1.34   thorpej #include <sys/mallocvar.h>
    367      1.34   thorpej MALLOC_DECLARE(M_IP6NDP);
    368       1.2    itojun 
    369       1.2    itojun /* nd6.c */
    370       1.2    itojun extern int nd6_prune;
    371       1.2    itojun extern int nd6_delay;
    372       1.2    itojun extern int nd6_umaxtries;
    373       1.2    itojun extern int nd6_mmaxtries;
    374       1.2    itojun extern int nd6_useloopback;
    375      1.15    itojun extern int nd6_maxnudhint;
    376      1.20    itojun extern int nd6_gctimer;
    377       1.2    itojun extern struct nd_drhead nd_defrouter;
    378       1.2    itojun extern struct nd_prhead nd_prefix;
    379      1.17    itojun extern int nd6_debug;
    380      1.17    itojun 
    381  1.60.2.4     skrll #define nd6log(level, fmt, args...) \
    382  1.60.2.4     skrll 	do { if (nd6_debug) log(level, "%s: " fmt, __func__, ##args);} while (0)
    383       1.2    itojun 
    384  1.60.2.5     skrll extern krwlock_t nd6_lock;
    385  1.60.2.5     skrll 
    386  1.60.2.5     skrll #define ND6_RLOCK()		rw_enter(&nd6_lock, RW_READER)
    387  1.60.2.5     skrll #define ND6_WLOCK()		rw_enter(&nd6_lock, RW_WRITER)
    388  1.60.2.5     skrll #define ND6_UNLOCK()		rw_exit(&nd6_lock)
    389  1.60.2.5     skrll #define ND6_ASSERT_WLOCK()	KASSERT(rw_write_held(&nd6_lock))
    390  1.60.2.5     skrll #define ND6_ASSERT_LOCK()	KASSERT(rw_lock_held(&nd6_lock))
    391  1.60.2.5     skrll 
    392       1.6    itojun /* nd6_rtr.c */
    393      1.41    rpaulo extern int ip6_desync_factor;	/* seconds */
    394      1.41    rpaulo extern u_int32_t ip6_temp_preferred_lifetime; /* seconds */
    395      1.41    rpaulo extern u_int32_t ip6_temp_valid_lifetime; /* seconds */
    396      1.41    rpaulo extern int ip6_temp_regen_advance; /* seconds */
    397      1.54       spz extern int nd6_numroutes;
    398       1.6    itojun 
    399       1.2    itojun union nd_opts {
    400      1.24    itojun 	struct nd_opt_hdr *nd_opt_array[8];
    401       1.2    itojun 	struct {
    402       1.2    itojun 		struct nd_opt_hdr *zero;
    403       1.2    itojun 		struct nd_opt_hdr *src_lladdr;
    404       1.2    itojun 		struct nd_opt_hdr *tgt_lladdr;
    405      1.26    itojun 		struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
    406       1.2    itojun 		struct nd_opt_rd_hdr *rh;
    407       1.2    itojun 		struct nd_opt_mtu *mtu;
    408       1.2    itojun 		struct nd_opt_hdr *search;	/* multiple opts */
    409       1.2    itojun 		struct nd_opt_hdr *last;	/* multiple opts */
    410       1.2    itojun 		int done;
    411       1.2    itojun 		struct nd_opt_prefix_info *pi_end;/* multiple opts, end */
    412       1.2    itojun 	} nd_opt_each;
    413       1.2    itojun };
    414       1.2    itojun #define nd_opts_src_lladdr	nd_opt_each.src_lladdr
    415       1.2    itojun #define nd_opts_tgt_lladdr	nd_opt_each.tgt_lladdr
    416       1.2    itojun #define nd_opts_pi		nd_opt_each.pi_beg
    417       1.2    itojun #define nd_opts_pi_end		nd_opt_each.pi_end
    418       1.2    itojun #define nd_opts_rh		nd_opt_each.rh
    419       1.2    itojun #define nd_opts_mtu		nd_opt_each.mtu
    420       1.2    itojun #define nd_opts_search		nd_opt_each.search
    421       1.2    itojun #define nd_opts_last		nd_opt_each.last
    422       1.2    itojun #define nd_opts_done		nd_opt_each.done
    423       1.2    itojun 
    424  1.60.2.3     skrll #include <net/if_llatbl.h>
    425  1.60.2.3     skrll 
    426       1.2    itojun /* XXX: need nd6_var.h?? */
    427       1.2    itojun /* nd6.c */
    428      1.45    dyoung void nd6_init(void);
    429      1.45    dyoung struct nd_ifinfo *nd6_ifattach(struct ifnet *);
    430  1.60.2.1     skrll void nd6_ifdetach(struct ifnet *, struct in6_ifextra *);
    431      1.43    dyoung int nd6_is_addr_neighbor(const struct sockaddr_in6 *, struct ifnet *);
    432      1.45    dyoung void nd6_option_init(void *, int, union nd_opts *);
    433      1.45    dyoung int nd6_options(union nd_opts *);
    434  1.60.2.4     skrll struct llentry *nd6_lookup(const struct in6_addr *, const struct ifnet *, bool);
    435  1.60.2.4     skrll struct llentry *nd6_create(const struct in6_addr *, const struct ifnet *);
    436      1.45    dyoung void nd6_setmtu(struct ifnet *);
    437  1.60.2.3     skrll void nd6_llinfo_settimer(struct llentry *, time_t);
    438  1.60.2.1     skrll void nd6_purge(struct ifnet *, struct in6_ifextra *);
    439  1.60.2.5     skrll void nd6_assert_purged(struct ifnet *);
    440  1.60.2.2     skrll void nd6_nud_hint(struct rtentry *);
    441      1.45    dyoung int nd6_resolve(struct ifnet *, struct rtentry *,
    442      1.45    dyoung 	struct mbuf *, struct sockaddr *, u_char *);
    443      1.51    dyoung void nd6_rtrequest(int, struct rtentry *, const struct rt_addrinfo *);
    444      1.45    dyoung int nd6_ioctl(u_long, void *, struct ifnet *);
    445  1.60.2.2     skrll void nd6_cache_lladdr(struct ifnet *, struct in6_addr *,
    446      1.45    dyoung 	char *, int, int, int);
    447      1.45    dyoung int nd6_output(struct ifnet *, struct ifnet *, struct mbuf *,
    448      1.46    dyoung 	const struct sockaddr_in6 *, struct rtentry *);
    449      1.43    dyoung int nd6_storelladdr(const struct ifnet *, const struct rtentry *, struct mbuf *,
    450      1.43    dyoung 	const struct sockaddr *, uint8_t *, size_t);
    451      1.45    dyoung int nd6_sysctl(int, void *, size_t *, void *, size_t);
    452      1.45    dyoung int nd6_need_cache(struct ifnet *);
    453  1.60.2.4     skrll void nd6_llinfo_release_pkts(struct llentry *, struct ifnet *);
    454  1.60.2.4     skrll int nd6_add_ifa_lle(struct in6_ifaddr *);
    455  1.60.2.4     skrll void nd6_rem_ifa_lle(struct in6_ifaddr *);
    456       1.2    itojun 
    457       1.2    itojun /* nd6_nbr.c */
    458      1.45    dyoung void nd6_na_input(struct mbuf *, int, int);
    459      1.45    dyoung void nd6_na_output(struct ifnet *, const struct in6_addr *,
    460      1.49    dyoung 	const struct in6_addr *, u_long, int, const struct sockaddr *);
    461      1.45    dyoung void nd6_ns_input(struct mbuf *, int, int);
    462      1.45    dyoung void nd6_ns_output(struct ifnet *, const struct in6_addr *,
    463  1.60.2.3     skrll 	const struct in6_addr *, struct in6_addr *, int);
    464      1.50    dyoung const void *nd6_ifptomac(const struct ifnet *);
    465      1.45    dyoung void nd6_dad_start(struct ifaddr *, int);
    466      1.45    dyoung void nd6_dad_stop(struct ifaddr *);
    467       1.2    itojun 
    468       1.2    itojun /* nd6_rtr.c */
    469      1.45    dyoung void nd6_rs_input(struct mbuf *, int, int);
    470      1.45    dyoung void nd6_ra_input(struct mbuf *, int, int);
    471  1.60.2.5     skrll void nd6_defrouter_reset(void);
    472  1.60.2.5     skrll void nd6_defrouter_select(void);
    473  1.60.2.5     skrll void nd6_defrtrlist_del(struct nd_defrouter *, struct in6_ifextra *);
    474  1.60.2.5     skrll void nd6_prefix_unref(struct nd_prefix *);
    475  1.60.2.5     skrll void nd6_prelist_remove(struct nd_prefix *);
    476  1.60.2.5     skrll void nd6_pfxlist_onlink_check(void);
    477  1.60.2.5     skrll struct nd_defrouter *nd6_defrouter_lookup(const struct in6_addr *, struct ifnet *);
    478  1.60.2.5     skrll void nd6_rt_flush(struct in6_addr *, struct ifnet *);
    479      1.45    dyoung int in6_tmpifadd(const struct in6_ifaddr *, int, int);
    480      1.53    dyoung bool nd6_accepts_rtadv(const struct nd_ifinfo *);
    481       1.2    itojun 
    482       1.2    itojun #endif /* _KERNEL */
    483       1.2    itojun 
    484      1.40      elad #endif /* !_NETINET6_ND6_H_ */
    485