-/* $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) 2000-2016 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@
+ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*/
#ifndef _NETINET6_ND6_H_
-#define _NETINET6_ND6_H_
+#define _NETINET6_ND6_H_
#include <sys/appleapiopts.h>
+#include <net/net_kev.h>
/* see net/route.h, or net/if_inarp.h */
#ifndef RTF_ANNOUNCE
-#define RTF_ANNOUNCE RTF_PROTO2
+#define RTF_ANNOUNCE RTF_PROTO2
#endif
#include <sys/queue.h>
-#ifdef KERNEL_PRIVATE
+#ifdef BSD_KERNEL_PRIVATE
+#include <net/flowadv.h>
+#include <kern/locks.h>
+#include <sys/tree.h>
+#include <netinet6/nd6_var.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 ifnet *ln_exclifp; /* excluded interface (prefix proxy) */
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 */
+ uint32_t ln_asked; /* # of queries already sent for this addr */
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 */
+ u_int64_t ln_expire; /* lifetime for NDP state transition */
+ u_int64_t ln_lastused; /* last used timestamp */
+ struct if_llreach *ln_llreach; /* link-layer reachability record */
};
-#endif /* KERNEL_PRIVATE */
-#define ND6_LLINFO_PURGE -3
-#define ND6_LLINFO_NOSTATE -2
+/* 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 /* BSD_KERNEL_PRIVATE */
+
+#define ND6_LLINFO_PURGE -3
+#define ND6_LLINFO_NOSTATE -2
/*
* 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
* 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
-
-#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
-
+/* #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 BSD_KERNEL_PRIVATE
+
+#define ND6_CACHE_STATE_TRANSITION(ln, nstate) do {\
+ if (nd6_debug >= 1) {\
+ nd6log((LOG_INFO,\
+ "[%s:%d]: NDP cache entry changed from %s -> %s",\
+ __FILE__,\
+ __LINE__,\
+ ndcache_state2str((ln)->ln_state),\
+ ndcache_state2str(nstate)));\
+ if ((ln)->ln_rt)\
+ nd6log((LOG_INFO,\
+ " for address: %s.\n",\
+ ip6_sprintf(&SIN6(rt_key((ln)->ln_rt))->sin6_addr)));\
+ else\
+ nd6log((LOG_INFO, "\n"));\
+ }\
+ (ln)->ln_state = nstate;\
+} while(0)
+
+#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
+#define ND6_LLINFO_PERMANENT(n) \
+ (((n)->ln_expire == 0) && ((n)->ln_state > ND6_LLINFO_INCOMPLETE))
+
+#define ND6_EUI64_GBIT 0x01
+#define ND6_EUI64_UBIT 0x02
+
+#define ND6_EUI64_TO_IFID(in6) \
+ do {(in6)->s6_addr[8] ^= ND6_EUI64_UBIT; } while (0)
+
+#define ND6_EUI64_GROUP(in6) ((in6)->s6_addr[8] & ND6_EUI64_GBIT)
+#define ND6_EUI64_INDIVIDUAL(in6) (!ND6_EUI64_GROUP(in6))
+#define ND6_EUI64_LOCAL(in6) ((in6)->s6_addr[8] & ND6_EUI64_UBIT)
+#define ND6_EUI64_UNIVERSAL(in6) (!ND6_EUI64_LOCAL(in6))
+#define ND6_IFID_LOCAL(in6) (!ND6_EUI64_LOCAL(in6))
+#define ND6_IFID_UNIVERSAL(in6) (!ND6_EUI64_UNIVERSAL(in6))
+#endif /* BSD_KERNEL_PRIVATE */
+
+#if !defined(BSD_KERNEL_PRIVATE)
struct nd_ifinfo {
+#else
+/* For binary compatibility, this structure must not change */
+/* NOTE: nd_ifinfo is defined in nd6_var.h */
+struct nd_ifinfo_compat {
+#endif /* !BSD_KERNEL_PRIVATE */
u_int32_t linkmtu; /* LinkMTU */
u_int32_t maxmtu; /* Upper bound of LinkMTU */
u_int32_t basereachable; /* BaseReachableTime */
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 randomseed0[8]; /* upper 64 bits of SHA1 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;
};
-#define ND6_IFF_PERFORMNUD 0x1
+#define ND6_IFF_PERFORMNUD 0x1
+#if defined(PRIVATE)
+
+/*
+ * APPLE: not used. Interface specific router advertisements are handled with a
+ * specific ifnet flag: IFEF_ACCEPT_RTADVD
+ */
+#define ND6_IFF_ACCEPT_RTADV 0x2
+
+/* APPLE: NOT USED not related to ND. */
+#define ND6_IFF_PREFER_SOURCE 0x4
+
+/* IPv6 operation is disabled due to * DAD failure. (XXX: not ND-specific) */
+#define ND6_IFF_IFDISABLED 0x8
+
+#define ND6_IFF_DONT_SET_IFROUTE 0x10 /* NOT USED */
+#endif /* PRIVATE */
+#define ND6_IFF_PROXY_PREFIXES 0x20
+#define ND6_IFF_IGNORE_NA 0x40
+#if defined(PRIVATE)
+#define ND6_IFF_INSECURE 0x80
+#endif
+#define ND6_IFF_REPLICATED 0x100 /* sleep proxy registered */
+#define ND6_IFF_DAD 0x200 /* Perform DAD on the interface */
struct in6_nbrinfo {
char ifname[IFNAMSIZ]; /* if name, e.g. "en0" */
struct in6_addr addr; /* IPv6 address of the neighbor */
- long asked; /* number of queries already sent for this addr */
+ long asked; /* # of queries already sent for this addr */
int isrouter; /* if it acts as a router */
int state; /* reachability state */
int expire; /* lifetime for NDP state transition */
};
-#define DRLSTSIZ 10
-#define PRLSTSIZ 10
+#if defined(BSD_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 /* BSD_KERNEL_PRIVATE */
+
+#define DRLSTSIZ 10
+#define PRLSTSIZ 10
+
struct in6_drlist {
char ifname[IFNAMSIZ];
struct {
} defrouter[DRLSTSIZ];
};
+#if defined(BSD_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 /* BSD_KERNEL_PRIVATE */
+
+/* valid values for stateflags */
+#define NDDRF_INSTALLED 0x1 /* installed in the routing table */
+#define NDDRF_IFSCOPE 0x2 /* installed as a scoped route */
+#define NDDRF_STATIC 0x4 /* for internal use only */
+#define NDDRF_MAPPED 0x8 /* Default router addr is mapped to a different one for routing */
+
struct in6_defrouter {
struct sockaddr_in6 rtaddr;
u_char flags;
+ u_char stateflags;
u_short rtlifetime;
u_long expire;
u_short if_index;
};
+#if defined(BSD_KERNEL_PRIVATE)
+struct in6_defrouter_32 {
+ struct sockaddr_in6 rtaddr;
+ u_char flags;
+ u_char stateflags;
+ u_short rtlifetime;
+ u_int32_t expire;
+ u_short if_index;
+};
+
+struct in6_defrouter_64 {
+ struct sockaddr_in6 rtaddr;
+ u_char flags;
+ u_char stateflags;
+ u_short rtlifetime;
+ u_long expire __attribute__((aligned(8)));
+ u_short if_index __attribute__((aligned(8)));
+} __attribute__((aligned(8)));
+#endif /* BSD_KERNEL_PRIVATE */
+
struct in6_prlist {
char ifname[IFNAMSIZ];
struct {
} prefix[PRLSTSIZ];
};
+#if defined(BSD_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 /* BSD_KERNEL_PRIVATE */
+
struct in6_prefix {
struct sockaddr_in6 prefix;
struct prf_ra raflags;
/* struct sockaddr_in6 advrtr[] */
};
+#if defined(BSD_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; /* number of advertisement routers */
+ /* 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 /* BSD_KERNEL_PRIVATE */
+
struct in6_ondireq {
char ifname[IFNAMSIZ];
struct {
} ndi;
};
+#if !defined(BSD_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 /* !BSD_KERNEL_PRIVATE */
struct in6_ndifreq {
char ifname[IFNAMSIZ];
u_long ifindex;
};
+#define MAX_RTR_SOLICITATION_DELAY 1 /* 1sec */
+#define RTR_SOLICITATION_INTERVAL 4 /* 4sec */
+
+#if defined(BSD_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 /* BSD_KERNEL_PRIVATE */
+
/* Prefix status */
-#define NDPRF_ONLINK 0x1
-#define NDPRF_DETACHED 0x2
+#define NDPRF_ONLINK 0x1
+#define NDPRF_DETACHED 0x2
+#define NDPRF_STATIC 0x100
+#define NDPRF_IFSCOPE 0x1000
+#define NDPRF_PRPROXY 0x2000
+#ifdef BSD_KERNEL_PRIVATE
+#define NDPRF_PROCESSED_ONLINK 0x08000
+#define NDPRF_PROCESSED_SERVICE 0x10000
+#define NDPRF_DEFUNCT 0x20000
+#endif
/* protocol constants */
-#define MAX_RTR_SOLICITATION_DELAY 1 /*1sec*/
-#define RTR_SOLICITATION_INTERVAL 4 /*4sec*/
-#define MAX_RTR_SOLICITATIONS 3
+#define MAX_RTR_SOLICITATION_DELAY 1 /* 1sec */
+#define RTR_SOLICITATION_INTERVAL 4 /* 4sec */
+#define MAX_RTR_SOLICITATIONS 3
+
+#define ND6_INFINITE_LIFETIME 0xffffffff
+#define ND6_MAX_LIFETIME 0x7fffffff
-#define ND6_INFINITE_LIFETIME 0xffffffff
+#ifdef BSD_KERNEL_PRIVATE
+#define ND_IFINFO(ifp) \
+ ((ifp == NULL) ? NULL : \
+ ((IN6_IFEXTRA(ifp) == NULL) ? NULL : \
+ (&IN6_IFEXTRA(ifp)->nd_ifinfo)))
-#ifdef KERNEL_PRIVATE
-#define ND_IFINFO(ifp) \
- (&nd_ifinfo[(ifp)->if_index])
/*
* In a more readable form, we derive linkmtu based on:
*
- * if (ND_IFINFO(ifp)->linkmtu && ND_IFINFO(ifp)->linkmtu < ifp->if_mtu)
+ * if (ifp == NULL)
+ * linkmtu = IPV6_MMTU
+ * else if (ND_IFINFO(ifp) == NULL || !ND_IFINFO(ifp)->initialized)
+ * linkmtu = ifp->if_mtu;
+ * else 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)->linkmtu && \
+#define IN6_LINKMTU(ifp) \
+ (ifp == NULL ? IPV6_MMTU : \
+ (ND_IFINFO(ifp) == NULL || !ND_IFINFO(ifp)->initialized) ? \
+ (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))
+ 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 */
-#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() & \
+#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 */
+#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)) + (RandomULong() & \
((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
+/* prefix expiry times */
+#define ND6_PREFIX_EXPIRY_UNSPEC -1
+#define ND6_PREFIX_EXPIRY_NEVER 0
+
TAILQ_HEAD(nd_drhead, nd_defrouter);
struct nd_defrouter {
+ decl_lck_mtx_data(, nddr_lock);
TAILQ_ENTRY(nd_defrouter) dr_entry;
- struct in6_addr rtaddr;
- 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 */
- int advints_lost; /* Mobile IPv6 addition */
- struct ifnet *ifp;
+ struct in6_addr rtaddr;
+ u_int32_t nddr_refcount;
+ u_int32_t nddr_debug;
+ u_int64_t expire;
+ u_int64_t base_calendartime; /* calendar time at creation */
+ u_int64_t base_uptime; /* uptime at creation */
+ u_char flags; /* flags on RA message */
+ u_char stateflags;
+ u_short rtlifetime;
+ int err;
+ struct ifnet *ifp;
+ struct in6_addr rtaddr_mapped; /* Mapped gateway address for routing */
+ void (*nddr_trace)(struct nd_defrouter *, int); /* trace callback fn */
};
+#define NDDR_LOCK_ASSERT_HELD(_nddr) \
+ lck_mtx_assert(&(_nddr)->nddr_lock, LCK_MTX_ASSERT_OWNED)
+
+#define NDDR_LOCK_ASSERT_NOTHELD(_nddr) \
+ lck_mtx_assert(&(_nddr)->nddr_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define NDDR_LOCK(_nddr) \
+ lck_mtx_lock(&(_nddr)->nddr_lock)
+
+#define NDDR_LOCK_SPIN(_nddr) \
+ lck_mtx_lock_spin(&(_nddr)->nddr_lock)
+
+#define NDDR_CONVERT_LOCK(_nddr) do { \
+ NDPR_LOCK_ASSERT_HELD(_nddr); \
+ lck_mtx_convert_spin(&(_nddr)->nddr_lock); \
+} while (0)
+
+#define NDDR_UNLOCK(_nddr) \
+ lck_mtx_unlock(&(_nddr)->nddr_lock)
+
+#define NDDR_ADDREF(_nddr) \
+ nddr_addref(_nddr, 0)
+
+#define NDDR_ADDREF_LOCKED(_nddr) \
+ nddr_addref(_nddr, 1)
+
+#define NDDR_REMREF(_nddr) do { \
+ (void) nddr_remref(_nddr, 0); \
+} while (0)
+
+#define NDDR_REMREF_LOCKED(_nddr) \
+ nddr_remref(_nddr, 1)
+
+/* define struct prproxy_sols_tree */
+RB_HEAD(prproxy_sols_tree, nd6_prproxy_soltgt);
+
struct nd_prefix {
- struct ifnet *ndpr_ifp;
+ decl_lck_mtx_data(, ndpr_lock);
+ u_int32_t ndpr_refcount; /* reference count */
+ u_int32_t ndpr_debug; /* see ifa_debug flags */
+ struct ifnet *ndpr_ifp;
+ struct rtentry *ndpr_rt;
LIST_ENTRY(nd_prefix) ndpr_entry;
- struct sockaddr_in6 ndpr_prefix; /* prefix */
+ struct sockaddr_in6 ndpr_prefix; /* prefix */
struct in6_addr ndpr_mask; /* netmask derived from the prefix */
struct in6_addr ndpr_addr; /* address that is derived from the prefix */
- u_int32_t ndpr_vltime; /* advertised valid lifetime */
- u_int32_t ndpr_pltime; /* advertised preferred lifetime */
- 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 */
+ u_int32_t ndpr_vltime; /* advertised valid lifetime */
+ u_int32_t ndpr_pltime; /* advertised preferred lifetime */
+ u_int64_t ndpr_preferred; /* preferred time of the prefix */
+ u_int64_t ndpr_expire; /* expiration time of the prefix */
+ u_int64_t ndpr_lastupdate; /* rx time of last advertisement */
+ u_int64_t ndpr_base_calendartime; /* calendar time at creation */
+ u_int64_t ndpr_base_uptime; /* uptime at creation */
+ struct prf_ra ndpr_flags;
+ unsigned int ndpr_genid; /* protects ndpr_advrtrs */
+ 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;
- int ndpr_refcnt; /* reference counter from addresses */
- int ndpr_usecnt; /* actual use count; prevents free */
+ u_char ndpr_plen;
+ int ndpr_addrcnt; /* reference counter from addresses */
+ u_int32_t ndpr_allmulti_cnt; /* total all-multi reqs */
+ u_int32_t ndpr_prproxy_sols_cnt; /* total # of proxied NS */
+ struct prproxy_sols_tree ndpr_prproxy_sols; /* tree of proxied NS */
+ void (*ndpr_trace)(struct nd_prefix *, int); /* trace callback fn */
};
-#define ndpr_next ndpr_entry.le_next
-
-#define ndpr_raf ndpr_flags
-#define ndpr_raf_onlink ndpr_flags.onlink
-#define ndpr_raf_auto ndpr_flags.autonomous
+#define ndpr_next ndpr_entry.le_next
+#define ndpr_raf ndpr_flags
+#define ndpr_raf_onlink ndpr_flags.onlink
+#define ndpr_raf_auto ndpr_flags.autonomous
+#define ndpr_raf_router ndpr_flags.router
/*
* We keep expired prefix for certain amount of time, for validation purposes.
* 1800s = MaxRtrAdvInterval
*/
-#define NDPR_KEEP_EXPIRED (1800 * 2)
+#define NDPR_KEEP_EXPIRED (1800 * 2)
+
+#define NDPR_LOCK_ASSERT_HELD(_ndpr) \
+ lck_mtx_assert(&(_ndpr)->ndpr_lock, LCK_MTX_ASSERT_OWNED)
+
+#define NDPR_LOCK_ASSERT_NOTHELD(_ndpr) \
+ lck_mtx_assert(&(_ndpr)->ndpr_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define NDPR_LOCK(_ndpr) \
+ lck_mtx_lock(&(_ndpr)->ndpr_lock)
+
+#define NDPR_LOCK_SPIN(_ndpr) \
+ lck_mtx_lock_spin(&(_ndpr)->ndpr_lock)
+
+#define NDPR_CONVERT_LOCK(_ndpr) do { \
+ NDPR_LOCK_ASSERT_HELD(_ndpr); \
+ lck_mtx_convert_spin(&(_ndpr)->ndpr_lock); \
+} while (0)
+
+#define NDPR_UNLOCK(_ndpr) \
+ lck_mtx_unlock(&(_ndpr)->ndpr_lock)
+
+#define NDPR_ADDREF(_ndpr) \
+ ndpr_addref(_ndpr, 0)
+
+#define NDPR_ADDREF_LOCKED(_ndpr) \
+ ndpr_addref(_ndpr, 1)
+
+#define NDPR_REMREF(_ndpr) do { \
+ (void) ndpr_remref(_ndpr, 0); \
+} while (0)
+
+#define NDPR_REMREF_LOCKED(_ndpr) \
+ ndpr_remref(_ndpr, 1)
/*
* Message format for use in obtaining information about prefixes
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 */
};
-#define prm_raf_onlink prm_flags.prf_ra.onlink
-#define prm_raf_auto prm_flags.prf_ra.autonomous
-
-#define prm_statef_onlink prm_flags.prf_state.onlink
+#define prm_raf_onlink prm_flags.prf_ra.onlink
+#define prm_raf_auto prm_flags.prf_ra.autonomous
-#define prm_rrf_decrvalid prm_flags.prf_rr.decrvalid
-#define prm_rrf_decrprefd prm_flags.prf_rr.decrprefd
+#define prm_statef_onlink prm_flags.prf_state.onlink
-#define ifpr2ndpr(ifpr) ((struct nd_prefix *)(ifpr))
-#define ndpr2ifpr(ndpr) ((struct ifprefix *)(ndpr))
+#define prm_rrf_decrvalid prm_flags.prf_rr.decrvalid
+#define prm_rrf_decrprefd prm_flags.prf_rr.decrprefd
struct nd_pfxrouter {
LIST_ENTRY(nd_pfxrouter) pfr_entry;
-#define pfr_next pfr_entry.le_next
+#define pfr_next pfr_entry.le_next
struct nd_defrouter *router;
};
LIST_HEAD(nd_prhead, nd_prefix);
+struct nd_prefix_list {
+ struct nd_prefix_list *next;
+ struct nd_prefix pr;
+};
+#endif /* BSD_KERNEL_PRIVATE */
+
+#if defined(PRIVATE)
+struct kev_nd6_ndfailure {
+ struct net_event_data link_data;
+};
+
+struct kev_nd6_ndalive {
+ struct net_event_data link_data;
+};
+
+/* ND6 RA L2 source address length */
+#define ND6_ROUTER_LL_SIZE 64
+
+struct nd6_ra_prefix {
+ struct sockaddr_in6 prefix;
+ struct prf_ra raflags;
+ u_int32_t prefixlen;
+ u_int32_t origin;
+ u_int64_t vltime;
+ u_int64_t pltime;
+ u_int64_t expire;
+ u_int32_t flags;
+ u_int32_t refcnt;
+ u_int32_t if_index;
+ u_int32_t pad;
+};
+
+/* ND6 router advertisement valid bits */
+#define KEV_ND6_DATA_VALID_MTU (0x1 << 0)
+#define KEV_ND6_DATA_VALID_PREFIX (0x1 << 1)
+
+struct kev_nd6_ra_data {
+ u_int8_t lladdr[ND6_ROUTER_LL_SIZE];
+ u_int32_t lladdrlen;
+ u_int32_t mtu;
+ u_int32_t list_index;
+ u_int32_t list_length;
+ u_int32_t flags;
+ struct nd6_ra_prefix prefix;
+ u_int32_t pad;
+};
+
+struct nd6_lookup_ipv6_args {
+ char ifname[IFNAMSIZ];
+ struct sockaddr_in6 ip6_dest;
+ u_int32_t ll_dest_len;
+ union {
+ char buffer[256];
+ struct sockaddr_dl _sdl;
+ } ll_dest_;
+};
+#define ll_dest_sdl ll_dest_._sdl
+
+#endif /* PRIVATE */
+
+#if defined(BSD_KERNEL_PRIVATE)
/* nd6.c */
extern int nd6_prune;
+extern int nd6_prune_lazy;
extern int nd6_delay;
extern int nd6_umaxtries;
extern int nd6_mmaxtries;
extern int nd6_useloopback;
+extern int nd6_accept_6to4;
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 int nd6_onlink_ns_rfc4861;
+extern int nd6_optimistic_dad;
-#define nd6log(x) do { if (nd6_debug) log x; } while (0)
+#define nd6log(x) do { if (nd6_debug >= 1) log x; } while (0)
+#define nd6log2(x) do { if (nd6_debug >= 2) log x; } while (0)
-extern struct callout nd6_timer_ch;
+#define ND6_OPTIMISTIC_DAD_LINKLOCAL (1 << 0)
+#define ND6_OPTIMISTIC_DAD_AUTOCONF (1 << 1)
+#define ND6_OPTIMISTIC_DAD_TEMPORARY (1 << 2)
+#define ND6_OPTIMISTIC_DAD_DYNAMIC (1 << 3)
+#define ND6_OPTIMISTIC_DAD_SECURED (1 << 4)
+#define ND6_OPTIMISTIC_DAD_MANUAL (1 << 5)
/* nd6_rtr.c */
extern int nd6_defifindex;
extern int ip6_desync_factor; /* seconds */
+/* ND6_INFINITE_LIFETIME does not apply to temporary addresses */
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 *nd_opt_array[16]; /* max = target address list */
struct {
struct nd_opt_hdr *zero;
struct nd_opt_hdr *src_lladdr;
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;
- struct nd_opt_advint *adv;
- struct nd_opt_hai *hai;
+ struct nd_opt_hdr *__res6;
+ struct nd_opt_hdr *__res7;
+ struct nd_opt_hdr *__res8;
+ struct nd_opt_hdr *__res9;
+ struct nd_opt_hdr *__res10;
+ struct nd_opt_hdr *__res11;
+ struct nd_opt_hdr *__res12;
+ struct nd_opt_hdr *__res13;
+ struct nd_opt_nonce *nonce;
+ struct nd_opt_hdr *__res15;
struct nd_opt_hdr *search; /* multiple opts */
struct nd_opt_hdr *last; /* multiple opts */
int done;
- struct nd_opt_prefix_info *pi_end;/* multiple opts, end */
+ struct nd_opt_prefix_info *pi_end; /* multiple opts, end */
} nd_opt_each;
};
-#define nd_opts_src_lladdr nd_opt_each.src_lladdr
-#define nd_opts_tgt_lladdr nd_opt_each.tgt_lladdr
-#define nd_opts_pi nd_opt_each.pi_beg
-#define nd_opts_pi_end nd_opt_each.pi_end
-#define nd_opts_rh nd_opt_each.rh
-#define nd_opts_mtu nd_opt_each.mtu
-#define nd_opts_adv nd_opt_each.adv
-#define nd_opts_hai nd_opt_each.hai
-#define nd_opts_search nd_opt_each.search
-#define nd_opts_last nd_opt_each.last
-#define nd_opts_done nd_opt_each.done
+#define nd_opts_src_lladdr nd_opt_each.src_lladdr
+#define nd_opts_tgt_lladdr nd_opt_each.tgt_lladdr
+#define nd_opts_pi nd_opt_each.pi_beg
+#define nd_opts_pi_end nd_opt_each.pi_end
+#define nd_opts_rh nd_opt_each.rh
+#define nd_opts_mtu nd_opt_each.mtu
+#define nd_opts_nonce nd_opt_each.nonce
+#define nd_opts_search nd_opt_each.search
+#define nd_opts_last nd_opt_each.last
+#define nd_opts_done nd_opt_each.done
/* XXX: need nd6_var.h?? */
/* nd6.c */
-void nd6_init(void);
-void nd6_ifattach(struct ifnet *);
-int nd6_is_addr_neighbor(struct sockaddr_in6 *, struct ifnet *, int);
-void nd6_option_init(void *, int, union nd_opts *);
-struct nd_opt_hdr *nd6_option(union nd_opts *);
-int nd6_options(union nd_opts *);
-struct rtentry *nd6_lookup(struct in6_addr *, int, struct ifnet *, int);
-void nd6_setmtu(struct ifnet *);
-void nd6_timer(void *);
-void nd6_purge(struct ifnet *);
-struct llinfo_nd6 *nd6_free(struct rtentry *);
-void nd6_nud_hint(struct rtentry *, struct in6_addr *, int);
-int nd6_resolve(struct ifnet *, struct rtentry *,
- struct mbuf *, struct sockaddr *, u_char *);
-void nd6_rtrequest(int, struct rtentry *, struct sockaddr *);
-int nd6_ioctl(u_long, caddr_t, struct ifnet *);
-struct rtentry *nd6_cache_lladdr(struct ifnet *, struct in6_addr *,
- char *, int, int, int);
-int nd6_output(struct ifnet *, struct ifnet *, struct mbuf *,
- struct sockaddr_in6 *, struct rtentry *, int);
-int nd6_storelladdr(struct ifnet *, struct rtentry *, struct mbuf *,
- struct sockaddr *, u_char *);
-int nd6_need_cache(struct ifnet *);
+extern int nd6_sched_timeout_want;
+extern void nd6_sched_timeout(struct timeval *, struct timeval *);
+extern void nd6_init(void);
+extern void nd6_ifreset(struct ifnet *ifp);
+extern void 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_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_list(struct ifnet *, struct ifnet *, struct mbuf *,
+ struct sockaddr_in6 *, struct rtentry *, struct flowadv *);
+extern int nd6_output(struct ifnet *, struct ifnet *, struct mbuf *,
+ struct sockaddr_in6 *, struct rtentry *, struct flowadv *);
+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 *);
+extern void nd6_post_msg(u_int32_t, struct nd_prefix_list *, u_int32_t,
+ u_int32_t, char *, u_int32_t);
+extern int nd6_setifinfo(struct ifnet *, u_int32_t, u_int32_t);
+extern const char *ndcache_state2str(short);
+extern void ln_setexpire(struct llinfo_nd6 *, uint64_t);
/* nd6_nbr.c */
-void nd6_na_input(struct mbuf *, int, int);
-void nd6_na_output(struct ifnet *, const struct in6_addr *,
- const struct in6_addr *, u_long, int, struct sockaddr *);
-void nd6_ns_input(struct mbuf *, int, int);
-void nd6_ns_output(struct ifnet *, const struct in6_addr *,
- const struct in6_addr *, struct llinfo_nd6 *, int, int);
-caddr_t nd6_ifptomac(struct ifnet *);
-void nd6_dad_start(struct ifaddr *, int *);
-void nd6_dad_stop(struct ifaddr *);
-void nd6_dad_duplicated(struct ifaddr *);
+extern void nd6_nbr_init(void);
+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 *, uint8_t *);
+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 *);
+extern void nd6_llreach_alloc(struct rtentry *, struct ifnet *, void *,
+ unsigned int, boolean_t);
+extern void nd6_llreach_set_reachable(struct ifnet *, void *, unsigned int);
+extern void nd6_llreach_use(struct llinfo_nd6 *);
+extern void nd6_alt_node_addr_decompose(struct ifnet *, struct sockaddr *,
+ struct sockaddr_dl *, struct sockaddr_in6 *);
+extern void nd6_alt_node_present(struct ifnet *, struct sockaddr_in6 *,
+ struct sockaddr_dl *, int32_t, int, int);
+extern void nd6_alt_node_absent(struct ifnet *, struct sockaddr_in6 *);
/* nd6_rtr.c */
-void nd6_rs_input(struct mbuf *, int, int);
-void nd6_ra_input(struct mbuf *, int, int);
-void prelist_del(struct nd_prefix *);
-void defrouter_addreq(struct nd_defrouter *);
-void defrouter_delreq(struct nd_defrouter *, int);
-void defrouter_select(void);
-void defrtrlist_del(struct nd_defrouter *, int);
-void prelist_remove(struct nd_prefix *, int);
-int prelist_update(struct nd_prefix *, struct nd_defrouter *,
- struct mbuf *);
-int nd6_prelist_add(struct nd_prefix *, struct nd_defrouter *,
- struct nd_prefix **);
-int nd6_prefix_onlink(struct nd_prefix *, int, int);
-int nd6_prefix_offlink(struct nd_prefix *);
-void pfxlist_onlink_check(int);
-struct nd_defrouter *defrouter_lookup(struct in6_addr *,
- struct ifnet *);
-struct nd_prefix *nd6_prefix_lookup(struct nd_prefix *);
-int in6_init_prefix_ltimes(struct nd_prefix *ndpr);
-void rt6_flush(struct in6_addr *, struct ifnet *);
-int nd6_setdefaultiface(int);
-int in6_tmpifadd(const struct in6_ifaddr *, int);
-void ndpr_hold(struct nd_prefix *, boolean_t);
-void ndpr_rele(struct nd_prefix *, boolean_t);
-#endif /* KERNEL_PRIVATE */
+extern void nd6_rtr_init(void);
+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_select(struct ifnet *);
+extern void defrouter_reset(void);
+extern int defrtrlist_ioctl(u_long, caddr_t);
+extern void defrtrlist_del(struct nd_defrouter *);
+extern int defrtrlist_add_static(struct nd_defrouter *);
+extern int defrtrlist_del_static(struct nd_defrouter *);
+extern void prelist_remove(struct nd_prefix *);
+extern int prelist_update(struct nd_prefix *, struct nd_defrouter *,
+ struct mbuf *, int);
+extern int nd6_prelist_add(struct nd_prefix *, struct nd_defrouter *,
+ struct nd_prefix **, boolean_t);
+extern int nd6_prefix_onlink(struct nd_prefix *);
+extern int nd6_prefix_onlink_scoped(struct nd_prefix *, unsigned int);
+extern int nd6_prefix_offlink(struct nd_prefix *);
+extern void pfxlist_onlink_check(void);
+extern struct nd_defrouter *defrouter_lookup(struct in6_addr *, struct ifnet *);
+extern struct nd_prefix *nd6_prefix_lookup(struct nd_prefix *, int);
+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);
+extern void nddr_addref(struct nd_defrouter *, int);
+extern struct nd_defrouter *nddr_remref(struct nd_defrouter *, int);
+extern uint64_t nddr_getexpire(struct nd_defrouter *);
+extern void ndpr_addref(struct nd_prefix *, int);
+extern struct nd_prefix *ndpr_remref(struct nd_prefix *, int);
+extern uint64_t ndpr_getexpire(struct nd_prefix *);
+
+/* nd6_prproxy.c */
+struct ip6_hdr;
+extern u_int32_t nd6_prproxy;
+extern void nd6_prproxy_init(void);
+extern int nd6_if_prproxy(struct ifnet *, boolean_t);
+extern void nd6_prproxy_prelist_update(struct nd_prefix *, struct nd_prefix *);
+extern boolean_t nd6_prproxy_ifaddr(struct in6_ifaddr *);
+extern void nd6_proxy_find_fwdroute(struct ifnet *, struct route_in6 *);
+extern boolean_t nd6_prproxy_isours(struct mbuf *, struct ip6_hdr *,
+ struct route_in6 *, unsigned int);
+extern void nd6_prproxy_ns_output(struct ifnet *, struct ifnet *,
+ struct in6_addr *, struct in6_addr *, struct llinfo_nd6 *);
+extern void nd6_prproxy_ns_input(struct ifnet *, struct in6_addr *,
+ char *, int, struct in6_addr *, struct in6_addr *, uint8_t *nonce);
+extern void nd6_prproxy_na_input(struct ifnet *, struct in6_addr *,
+ struct in6_addr *, struct in6_addr *, int);
+extern void nd6_prproxy_sols_reap(struct nd_prefix *);
+extern void nd6_prproxy_sols_prune(struct nd_prefix *, u_int32_t);
+extern int nd6_if_disable(struct ifnet *, boolean_t);
+void in6_ifaddr_set_dadprogress(struct in6_ifaddr *ia);
+#endif /* BSD_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.
+/*
+ * @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.
*/
-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);
+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 */
+
+/* nd6_send.c */
+#ifdef BSD_KERNEL_PRIVATE
+/*
+ * nd6_send_opmode
+ *
+ * value using CGA tx SEND rx SEND
+ * -------- --------- ------- -------
+ * DISABLED NO NO NO
+ * QUIET YES NO NO
+ */
+extern int nd6_send_opstate;
+
+#define ND6_SEND_OPMODE_DISABLED 0
+#define ND6_SEND_OPMODE_CGA_QUIET 1
-#endif KERNEL
+#endif /* BSD_KERNEL_PRIVATE */
#endif /* _NETINET6_ND6_H_ */
projects / apple / xnu.git / blobdiff