-/* $KAME: nd6.h,v 1.18 2000/03/16 11:58:32 itojun Exp $ */
+/*
+ * Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+/* $FreeBSD: src/sys/netinet6/nd6.h,v 1.2.2.3 2001/08/13 01:10:49 simokawa Exp $ */
+/* $KAME: nd6.h,v 1.55 2001/04/27 15:09:49 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
#ifndef _NETINET6_ND6_H_
#define _NETINET6_ND6_H_
+#include <sys/appleapiopts.h>
/* see net/route.h, or net/if_inarp.h */
#ifndef RTF_ANNOUNCE
#include <sys/queue.h>
+#ifdef KERNEL_PRIVATE
+#include <kern/locks.h>
+
struct llinfo_nd6 {
+ /*
+ * The following are protected by rnh_lock
+ */
struct llinfo_nd6 *ln_next;
struct llinfo_nd6 *ln_prev;
struct rtentry *ln_rt;
+ /*
+ * The following are protected by rt_lock
+ */
struct mbuf *ln_hold; /* last packet until resolved/timeout */
long ln_asked; /* number of queries already sent for this addr */
- u_long ln_expire; /* lifetime for NDP state transition */
+ u_int32_t ln_expire; /* lifetime for NDP state transition */
short ln_state; /* reachability state */
short ln_router; /* 2^0: ND6 router bit */
+ int ln_byhint; /* # of times we made it reachable by UL hint */
+ u_int32_t ln_flags; /* flags; see below */
};
+/* Values for ln_flags */
+#define ND6_LNF_TIMER_SKIP 0x1 /* modified by nd6_timer() */
+#define ND6_LNF_IN_USE 0x2 /* currently in llinfo_nd6 list */
+#endif /* KERNEL_PRIVATE */
+
+#define ND6_LLINFO_PURGE -3
#define ND6_LLINFO_NOSTATE -2
-#define ND6_LLINFO_WAITDELETE -1
+/*
+ * We don't need the WAITDELETE state any more, but we keep the definition
+ * in a comment line instead of removing it. This is necessary to avoid
+ * unintentionally reusing the value for another purpose, which might
+ * affect backward compatibility with old applications.
+ * (20000711 jinmei@kame.net)
+ */
+/* #define ND6_LLINFO_WAITDELETE -1 */
#define ND6_LLINFO_INCOMPLETE 0
#define ND6_LLINFO_REACHABLE 1
#define ND6_LLINFO_STALE 2
#define ND6_LLINFO_DELAY 3
#define ND6_LLINFO_PROBE 4
+#ifdef KERNEL_PRIVATE
#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
+#endif /* KERNEL_PRIVATE */
+#if !defined(KERNEL_PRIVATE)
struct nd_ifinfo {
+#else
+/* For binary compatibility, this structure must not change */
+struct nd_ifinfo_compat {
+#endif /* !KERNEL_PRIVATE */
u_int32_t linkmtu; /* LinkMTU */
u_int32_t maxmtu; /* Upper bound of LinkMTU */
u_int32_t basereachable; /* BaseReachableTime */
int recalctm; /* BaseReacable re-calculation timer */
u_int8_t chlim; /* CurHopLimit */
u_int8_t receivedra;
+ /* the following 3 members are for privacy extension for addrconf */
+ u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
+ u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
+ u_int8_t randomid[8]; /* current random ID */
};
+#if defined(KERNEL_PRIVATE)
+struct nd_ifinfo {
+ u_int32_t linkmtu; /* LinkMTU */
+ u_int32_t maxmtu; /* Upper bound of LinkMTU */
+ u_int32_t basereachable; /* BaseReachableTime */
+ u_int32_t reachable; /* Reachable Time */
+ u_int32_t retrans; /* Retrans Timer */
+ u_int32_t flags; /* Flags */
+ int recalctm; /* BaseReacable re-calculation timer */
+ u_int8_t chlim; /* CurHopLimit */
+ u_int8_t receivedra;
+ /* the following 3 members are for privacy extension for addrconf */
+ u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
+ u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
+ u_int8_t randomid[8]; /* current random ID */
+ /* keep track of routers and prefixes on this link */
+ int32_t nprefixes;
+ int32_t ndefrouters;
+};
+#endif /* KERNEL_PRIVATE */
+
#define ND6_IFF_PERFORMNUD 0x1
struct in6_nbrinfo {
int expire; /* lifetime for NDP state transition */
};
+#if defined(KERNEL_PRIVATE)
+struct in6_nbrinfo_32 {
+ char ifname[IFNAMSIZ];
+ struct in6_addr addr;
+ u_int32_t asked;
+ int isrouter;
+ int state;
+ int expire;
+};
+
+struct in6_nbrinfo_64 {
+ char ifname[IFNAMSIZ];
+ struct in6_addr addr;
+ long asked;
+ int isrouter __attribute__((aligned(8)));
+ int state;
+ int expire;
+} __attribute__((aligned(8)));
+#endif /* KERNEL_PRIVATE */
+
#define DRLSTSIZ 10
#define PRLSTSIZ 10
+
struct in6_drlist {
char ifname[IFNAMSIZ];
struct {
} defrouter[DRLSTSIZ];
};
+#if defined(KERNEL_PRIVATE)
+struct in6_drlist_32 {
+ char ifname[IFNAMSIZ];
+ struct {
+ struct in6_addr rtaddr;
+ u_char flags;
+ u_short rtlifetime;
+ u_int32_t expire;
+ u_short if_index;
+ } defrouter[DRLSTSIZ];
+};
+
+struct in6_drlist_64 {
+ char ifname[IFNAMSIZ];
+ struct {
+ struct in6_addr rtaddr;
+ u_char flags;
+ u_short rtlifetime;
+ u_long expire __attribute__((aligned(8)));
+ u_short if_index __attribute__((aligned(8)));
+ } defrouter[DRLSTSIZ] __attribute__((aligned(8)));
+};
+#endif /* KERNEL_PRIVATE */
+
+struct in6_defrouter {
+ struct sockaddr_in6 rtaddr;
+ u_char flags;
+ u_short rtlifetime;
+ u_long expire;
+ u_short if_index;
+};
+
+#if defined(KERNEL_PRIVATE)
+struct in6_defrouter_32 {
+ struct sockaddr_in6 rtaddr;
+ u_char flags;
+ u_short rtlifetime;
+ u_int32_t expire;
+ u_short if_index;
+};
+
+struct in6_defrouter_64 {
+ struct sockaddr_in6 rtaddr;
+ u_char flags;
+ u_short rtlifetime;
+ u_long expire __attribute__((aligned(8)));
+ u_short if_index __attribute__((aligned(8)));
+} __attribute__((aligned(8)));
+#endif /* KERNEL_PRIVATE */
+
struct in6_prlist {
char ifname[IFNAMSIZ];
struct {
} prefix[PRLSTSIZ];
};
+#if defined(KERNEL_PRIVATE)
+struct in6_prlist_32 {
+ char ifname[IFNAMSIZ];
+ struct {
+ struct in6_addr prefix;
+ struct prf_ra raflags;
+ u_char prefixlen;
+ u_char origin;
+ u_int32_t vltime;
+ u_int32_t pltime;
+ u_int32_t expire;
+ u_short if_index;
+ u_short advrtrs;
+ struct in6_addr advrtr[DRLSTSIZ];
+ } prefix[PRLSTSIZ];
+};
+
+struct in6_prlist_64 {
+ char ifname[IFNAMSIZ];
+ struct {
+ struct in6_addr prefix;
+ struct prf_ra raflags;
+ u_char prefixlen;
+ u_char origin;
+ u_long vltime __attribute__((aligned(8)));
+ u_long pltime __attribute__((aligned(8)));
+ u_long expire __attribute__((aligned(8)));
+ u_short if_index;
+ u_short advrtrs;
+ u_int32_t pad;
+ struct in6_addr advrtr[DRLSTSIZ];
+ } prefix[PRLSTSIZ];
+};
+#endif /* KERNEL_PRIVATE */
+
+struct in6_prefix {
+ struct sockaddr_in6 prefix;
+ struct prf_ra raflags;
+ u_char prefixlen;
+ u_char origin;
+ u_long vltime;
+ u_long pltime;
+ u_long expire;
+ u_int32_t flags;
+ int refcnt;
+ u_short if_index;
+ u_short advrtrs; /* number of advertisement routers */
+ /* struct sockaddr_in6 advrtr[] */
+};
+
+#if defined(KERNEL_PRIVATE)
+struct in6_prefix_32 {
+ struct sockaddr_in6 prefix;
+ struct prf_ra raflags;
+ u_char prefixlen;
+ u_char origin;
+ u_int32_t vltime;
+ u_int32_t pltime;
+ u_int32_t expire;
+ u_int32_t flags;
+ int refcnt;
+ u_short if_index;
+ u_short advrtrs;
+ /* struct sockaddr_in6 advrtr[] */
+};
+
+struct in6_prefix_64 {
+ struct sockaddr_in6 prefix;
+ struct prf_ra raflags;
+ u_char prefixlen;
+ u_char origin;
+ u_long vltime __attribute__((aligned(8)));
+ u_long pltime __attribute__((aligned(8)));
+ u_long expire __attribute__((aligned(8)));
+ u_int32_t flags __attribute__((aligned(8)));
+ int refcnt;
+ u_short if_index;
+ u_short advrtrs;
+ /* struct sockaddr_in6 advrtr[] */
+};
+#endif /* KERNEL_PRIVATE */
+
+struct in6_ondireq {
+ char ifname[IFNAMSIZ];
+ struct {
+ u_int32_t linkmtu; /* LinkMTU */
+ u_int32_t maxmtu; /* Upper bound of LinkMTU */
+ u_int32_t basereachable; /* BaseReachableTime */
+ u_int32_t reachable; /* Reachable Time */
+ u_int32_t retrans; /* Retrans Timer */
+ u_int32_t flags; /* Flags */
+ int recalctm; /* BaseReacable re-calculation timer */
+ u_int8_t chlim; /* CurHopLimit */
+ u_int8_t receivedra;
+ } ndi;
+};
+
+#if !defined(KERNEL_PRIVATE)
struct in6_ndireq {
char ifname[IFNAMSIZ];
struct nd_ifinfo ndi;
};
+#else
+struct in6_ndireq {
+ char ifname[IFNAMSIZ];
+ struct nd_ifinfo_compat ndi;
+};
+#endif /* !KERNEL_PRIVATE */
struct in6_ndifreq {
char ifname[IFNAMSIZ];
u_long ifindex;
};
+#if defined(KERNEL_PRIVATE)
+struct in6_ndifreq_32 {
+ char ifname[IFNAMSIZ];
+ u_int32_t ifindex;
+};
+
+struct in6_ndifreq_64 {
+ char ifname[IFNAMSIZ];
+ u_long ifindex __attribute__((aligned(8)));
+};
+#endif /* KERNEL_PRIVATE */
+
+/* Prefix status */
+#define NDPRF_ONLINK 0x1
+#define NDPRF_DETACHED 0x2
/* protocol constants */
#define MAX_RTR_SOLICITATION_DELAY 1 /*1sec*/
#define ND6_INFINITE_LIFETIME 0xffffffff
-#if KERNEL
+#ifdef KERNEL_PRIVATE
+/*
+ * Protects nd_ifinfo[]
+ */
+__private_extern__ lck_rw_t *nd_if_rwlock;
+
+#define ND_IFINFO(ifp) \
+ ((ifp)->if_index < nd_ifinfo_indexlim ? &nd_ifinfo[(ifp)->if_index] : NULL)
+
+/*
+ * In a more readable form, we derive linkmtu based on:
+ *
+ * if (ND_IFINFO(ifp)->linkmtu && ND_IFINFO(ifp)->linkmtu < ifp->if_mtu)
+ * linkmtu = ND_IFINFO(ifp)->linkmtu;
+ * else if ((ND_IFINFO(ifp)->maxmtu && ND_IFINFO(ifp)->maxmtu < ifp->if_mtu))
+ * linkmtu = ND_IFINFO(ifp)->maxmtu;
+ * else
+ * linkmtu = ifp->if_mtu;
+ */
+#define IN6_LINKMTU(ifp) \
+ (ND_IFINFO(ifp) == NULL ? (ifp)->if_mtu : \
+ ((ND_IFINFO(ifp)->linkmtu && \
+ ND_IFINFO(ifp)->linkmtu < (ifp)->if_mtu) ? ND_IFINFO(ifp)->linkmtu : \
+ ((ND_IFINFO(ifp)->maxmtu && ND_IFINFO(ifp)->maxmtu < (ifp)->if_mtu) ? \
+ ND_IFINFO(ifp)->maxmtu : (ifp)->if_mtu)))
+
/* node constants */
#define MAX_REACHABLE_TIME 3600000 /* msec */
#define REACHABLE_TIME 30000 /* msec */
#define RETRANS_TIMER 1000 /* msec */
#define MIN_RANDOM_FACTOR 512 /* 1024 * 0.5 */
#define MAX_RANDOM_FACTOR 1536 /* 1024 * 1.5 */
-#ifndef __OpenBSD__
+#define DEF_TEMP_VALID_LIFETIME 604800 /* 1 week */
+#define DEF_TEMP_PREFERRED_LIFETIME 86400 /* 1 day */
+#define TEMPADDR_REGEN_ADVANCE 5 /* sec */
+#define MAX_TEMP_DESYNC_FACTOR 600 /* 10 min */
#define ND_COMPUTE_RTIME(x) \
(((MIN_RANDOM_FACTOR * (x >> 10)) + (random() & \
((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
-#else
-#define ND_COMPUTE_RTIME(x) \
- (((MIN_RANDOM_FACTOR * (x >> 10)) + (arc4random() & \
- ((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
-#endif
TAILQ_HEAD(nd_drhead, nd_defrouter);
struct nd_defrouter {
TAILQ_ENTRY(nd_defrouter) dr_entry;
struct in6_addr rtaddr;
- u_char flags;
+ u_char flags; /* flags on RA message */
u_short rtlifetime;
- u_long expire;
- u_long advint; /* Mobile IPv6 addition (milliseconds) */
- u_long advint_expire; /* Mobile IPv6 addition */
+ u_int32_t expire;
+ u_int32_t advint; /* Mobile IPv6 addition (milliseconds) */
+ u_int32_t advint_expire; /* Mobile IPv6 addition */
int advints_lost; /* Mobile IPv6 addition */
struct ifnet *ifp;
};
time_t ndpr_expire; /* expiration time of the prefix */
time_t ndpr_preferred; /* preferred time of the prefix */
struct prf_ra ndpr_flags;
+ u_int32_t ndpr_stateflags; /* actual state flags */
/* list of routers that advertise the prefix: */
LIST_HEAD(pr_rtrhead, nd_pfxrouter) ndpr_advrtrs;
u_char ndpr_plen;
- struct ndpr_stateflags {
- /* if this prefix can be regarded as on-link */
- u_char onlink : 1;
- } ndpr_stateflags;
+ int ndpr_refcnt; /* reference counter from addresses */
+ int ndpr_usecnt; /* actual use count; prevents free */
};
#define ndpr_next ndpr_entry.le_next
#define ndpr_raf_onlink ndpr_flags.onlink
#define ndpr_raf_auto ndpr_flags.autonomous
-#define ndpr_statef_onlink ndpr_stateflags.onlink
-#define ndpr_statef_addmark ndpr_stateflags.addmark
-
/*
* We keep expired prefix for certain amount of time, for validation purposes.
* 1800s = MaxRtrAdvInterval
*/
struct inet6_ndpr_msghdr {
u_short inpm_msglen; /* to skip over non-understood messages */
- u_char inpm_version; /* future binary compatability */
+ u_char inpm_version; /* future binary compatibility */
u_char inpm_type; /* message type */
struct in6_addr inpm_prefix;
- u_long prm_vltim;
- u_long prm_pltime;
- u_long prm_expire;
- u_long prm_preferred;
+ u_int32_t prm_vltim;
+ u_int32_t prm_pltime;
+ u_int32_t prm_expire;
+ u_int32_t prm_preferred;
struct in6_prflags prm_flags;
u_short prm_index; /* index for associated ifp */
u_char prm_plen; /* length of prefix in bits */
extern int nd6_umaxtries;
extern int nd6_mmaxtries;
extern int nd6_useloopback;
+extern int nd6_maxnudhint;
+extern int nd6_gctimer;
extern struct llinfo_nd6 llinfo_nd6;
extern struct nd_ifinfo *nd_ifinfo;
extern struct nd_drhead nd_defrouter;
extern struct nd_prhead nd_prefix;
+extern int nd6_debug;
+extern size_t nd_ifinfo_indexlim;
+
+#define nd6log(x) do { if (nd6_debug) log x; } while (0)
+
+extern struct callout nd6_timer_ch;
/* nd6_rtr.c */
-extern struct ifnet *nd6_defifp; /* XXXYYY */
extern int nd6_defifindex;
+extern int ip6_desync_factor; /* seconds */
+extern u_int32_t ip6_temp_preferred_lifetime; /* seconds */
+extern u_int32_t ip6_temp_valid_lifetime; /* seconds */
+extern int ip6_temp_regen_advance; /* seconds */
union nd_opts {
struct nd_opt_hdr *nd_opt_array[9]; /*max = home agent info*/
struct nd_opt_hdr *zero;
struct nd_opt_hdr *src_lladdr;
struct nd_opt_hdr *tgt_lladdr;
- struct nd_opt_prefix_info *pi_beg;/* multiple opts, start */
+ struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
struct nd_opt_rd_hdr *rh;
struct nd_opt_mtu *mtu;
struct nd_opt_hdr *six;
/* XXX: need nd6_var.h?? */
/* nd6.c */
-void nd6_init __P((void));
-void nd6_ifattach __P((struct ifnet *));
-int nd6_is_addr_neighbor __P((struct in6_addr *, struct ifnet *));
-void nd6_option_init __P((void *, int, union nd_opts *));
-struct nd_opt_hdr *nd6_option __P((union nd_opts *));
-int nd6_options __P((union nd_opts *));
-struct rtentry *nd6_lookup __P((struct in6_addr *, int, struct ifnet *));
-void nd6_setmtu __P((struct ifnet *));
-void nd6_timer __P((void *));
-void nd6_timer_funneled __P((void *));
-void nd6_purge __P((struct ifnet *));
-void nd6_free __P((struct rtentry *));
-void nd6_nud_hint __P((struct rtentry *, struct in6_addr *));
-int nd6_resolve __P((struct ifnet *, struct rtentry *,
- struct mbuf *, struct sockaddr *, u_char *));
-#if defined(__bsdi__) && _BSDI_VERSION >= 199802
-void nd6_rtrequest __P((int, struct rtentry *, struct rt_addrinfo *));
-void nd6_p2p_rtrequest __P((int, struct rtentry *, struct rt_addrinfo *));
-#else
-void nd6_rtrequest __P((int, struct rtentry *, struct sockaddr *));
-void nd6_p2p_rtrequest __P((int, struct rtentry *, struct sockaddr *));
-#endif
-int nd6_ioctl __P((u_long, caddr_t, struct ifnet *));
-struct rtentry *nd6_cache_lladdr __P((struct ifnet *, struct in6_addr *,
- char *, int, int, int));
-/* for test */
-int nd6_output __P((struct ifnet *, struct mbuf *, struct sockaddr_in6 *,
- struct rtentry *));
-int nd6_storelladdr __P((struct ifnet *, struct rtentry *, struct mbuf *,
- struct sockaddr *, u_char *));
+extern void nd6_init(void);
+extern int nd6_ifattach(struct ifnet *);
+extern int nd6_is_addr_neighbor(struct sockaddr_in6 *, struct ifnet *, int);
+extern void nd6_option_init(void *, int, union nd_opts *);
+extern struct nd_opt_hdr *nd6_option(union nd_opts *);
+extern int nd6_options(union nd_opts *);
+extern struct rtentry *nd6_lookup(struct in6_addr *, int, struct ifnet *, int);
+extern void nd6_setmtu(struct ifnet *);
+extern void nd6_timer(void *);
+extern void nd6_purge(struct ifnet *);
+extern void nd6_free(struct rtentry *);
+extern void nd6_nud_hint(struct rtentry *, struct in6_addr *, int);
+extern int nd6_resolve(struct ifnet *, struct rtentry *,
+ struct mbuf *, struct sockaddr *, u_char *);
+extern void nd6_rtrequest(int, struct rtentry *, struct sockaddr *);
+extern int nd6_ioctl(u_long, caddr_t, struct ifnet *);
+extern void nd6_cache_lladdr(struct ifnet *, struct in6_addr *,
+ char *, int, int, int);
+extern int nd6_output(struct ifnet *, struct ifnet *, struct mbuf *,
+ struct sockaddr_in6 *, struct rtentry *, int);
+extern int nd6_storelladdr(struct ifnet *, struct rtentry *, struct mbuf *,
+ struct sockaddr *, u_char *);
+extern int nd6_need_cache(struct ifnet *);
+extern void nd6_drain(void *);
/* nd6_nbr.c */
-void nd6_na_input __P((struct mbuf *, int, int));
-void nd6_na_output __P((struct ifnet *, struct in6_addr *,
- struct in6_addr *, u_long, int, struct sockaddr *));
-void nd6_ns_input __P((struct mbuf *, int, int));
-void nd6_ns_output __P((struct ifnet *, struct in6_addr *,
- struct in6_addr *, struct llinfo_nd6 *, int));
-caddr_t nd6_ifptomac __P((struct ifnet *));
-void nd6_dad_start __P((struct ifaddr *, int *));
-void nd6_dad_duplicated __P((struct ifaddr *));
+extern void nd6_na_input(struct mbuf *, int, int);
+extern void nd6_na_output(struct ifnet *, const struct in6_addr *,
+ const struct in6_addr *, u_int32_t, int, struct sockaddr *);
+extern void nd6_ns_input(struct mbuf *, int, int);
+extern void nd6_ns_output(struct ifnet *, const struct in6_addr *,
+ const struct in6_addr *, struct llinfo_nd6 *, int, int);
+extern caddr_t nd6_ifptomac(struct ifnet *);
+extern void nd6_dad_start(struct ifaddr *, int *);
+extern void nd6_dad_stop(struct ifaddr *);
+extern void nd6_dad_duplicated(struct ifaddr *);
/* nd6_rtr.c */
-void nd6_rs_input __P((struct mbuf *, int, int));
-void nd6_ra_input __P((struct mbuf *, int, int));
-void prelist_del __P((struct nd_prefix *));
-void defrouter_addreq __P((struct nd_defrouter *));
-void defrouter_delreq __P((struct nd_defrouter *, int));
-void defrouter_select __P((void));
-void defrtrlist_del __P((struct nd_defrouter *));
-void prelist_remove __P((struct nd_prefix *));
-int prelist_update __P((struct nd_prefix *, struct nd_defrouter *,
- struct mbuf *));
-struct nd_pfxrouter *find_pfxlist_reachable_router __P((struct nd_prefix *)); /* XXXYYY */
-void pfxlist_onlink_check __P((void));
-void defrouter_addifreq __P((struct ifnet *)); /* XXXYYY */
-struct nd_defrouter *defrouter_lookup __P((struct in6_addr *,
- struct ifnet *));
-struct nd_prefix *prefix_lookup __P((struct nd_prefix *)); /* XXXYYY */
-int in6_ifdel __P((struct ifnet *, struct in6_addr *));
-struct nd_pfxrouter *pfxrtr_lookup __P((struct nd_prefix *,
- struct nd_defrouter *)); /* XXXYYY */
-int in6_init_prefix_ltimes __P((struct nd_prefix *ndpr));
-void rt6_flush __P((struct in6_addr *, struct ifnet *));
-int nd6_setdefaultiface __P((int));
+extern void nd6_rs_input(struct mbuf *, int, int);
+extern void nd6_ra_input(struct mbuf *, int, int);
+extern void prelist_del(struct nd_prefix *);
+extern void defrouter_addreq(struct nd_defrouter *);
+extern void defrouter_delreq(struct nd_defrouter *, int);
+extern void defrouter_select(void);
+extern void defrtrlist_del(struct nd_defrouter *, int);
+extern void prelist_remove(struct nd_prefix *, int);
+extern int prelist_update(struct nd_prefix *, struct nd_defrouter *,
+ struct mbuf *);
+extern int nd6_prelist_add(struct nd_prefix *, struct nd_defrouter *,
+ struct nd_prefix **);
+extern int nd6_prefix_onlink(struct nd_prefix *, int, int);
+extern int nd6_prefix_offlink(struct nd_prefix *);
+extern void pfxlist_onlink_check(int);
+extern struct nd_defrouter *defrouter_lookup(struct in6_addr *, struct ifnet *);
+extern struct nd_prefix *nd6_prefix_lookup(struct nd_prefix *);
+extern int in6_init_prefix_ltimes(struct nd_prefix *ndpr);
+extern void rt6_flush(struct in6_addr *, struct ifnet *);
+extern int nd6_setdefaultiface(int);
+extern int in6_tmpifadd(const struct in6_ifaddr *, int, int);
+extern void ndpr_hold(struct nd_prefix *, boolean_t);
+extern void ndpr_rele(struct nd_prefix *, boolean_t);
+#endif /* KERNEL_PRIVATE */
+
+#ifdef KERNEL
+
+/*!
+ @function nd6_lookup_ipv6
+ @discussion This function will check the routing table for a cached
+ neighbor discovery entry or trigger an neighbor discovery query
+ to resolve the IPv6 address to a link-layer address.
+
+ nd entries are stored in the routing table. This function will
+ lookup the IPv6 destination in the routing table. If the
+ destination requires forwarding to a gateway, the route of the
+ gateway will be looked up. The route entry is inspected to
+ determine if the link layer destination address is known. If
+ unknown, neighbor discovery will be used to resolve the entry.
+ @param interface The interface the packet is being sent on.
+ @param ip6_dest The IPv6 destination of the packet.
+ @param ll_dest On output, the link-layer destination.
+ @param ll_dest_len The length of the buffer for ll_dest.
+ @param hint Any routing hint passed down from the protocol.
+ @param packet The packet being transmitted.
+ @result May return an error such as EHOSTDOWN or ENETUNREACH. If
+ this function returns EJUSTRETURN, the packet has been queued
+ and will be sent when the address is resolved. If any other
+ value is returned, the caller is responsible for disposing of
+ the packet.
+ */
+extern errno_t nd6_lookup_ipv6(ifnet_t interface,
+ const struct sockaddr_in6 *ip6_dest, struct sockaddr_dl *ll_dest,
+ size_t ll_dest_len, route_t hint, mbuf_t packet);
#endif /* KERNEL */
-
#endif /* _NETINET6_ND6_H_ */
projects / apple / xnu.git / blobdiff