xnu-3789.31.2.tar.gz

[apple/xnu.git] / bsd / netinet6 / nd6.h

diff --git a/bsd/netinet6/nd6.h b/bsd/netinet6/nd6.h
index b85be0157ceaca7c878066beb883ef81daeee043..bd71a5a9b2b9e3a6f3778fcda0132d35b81e7895 100644 (file)
--- a/bsd/netinet6/nd6.h
+++ b/bsd/netinet6/nd6.h
@@ -1,6 +1,30 @@
-/*     $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.
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.


@@ -31,31 +55,51 @@
  */
 
 #ifndef _NETINET6_ND6_H_
  */
 
 #ifndef _NETINET6_ND6_H_

-#define _NETINET6_ND6_H_
+#define        _NETINET6_ND6_H_

 #include <sys/appleapiopts.h>
 #include <sys/appleapiopts.h>

+#include <net/net_kev.h>

 
 /* see net/route.h, or net/if_inarp.h */
 #ifndef RTF_ANNOUNCE
 
 /* 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>
 
 #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 {
 struct llinfo_nd6 {

+       /*
+        * The following are protected by rnh_lock
+        */

        struct  llinfo_nd6 *ln_next;
        struct  llinfo_nd6 *ln_prev;
        struct  rtentry *ln_rt;
        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 */
        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 */
        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_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
 /*
  * 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


@@ -63,16 +107,58 @@ struct     llinfo_nd6 {
  * affect backward compatibility with old applications.
  * (20000711 jinmei@kame.net)
  */
  * 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 {
 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_int32_t linkmtu;              /* LinkMTU */
        u_int32_t maxmtu;               /* Upper bound of LinkMTU */
        u_int32_t basereachable;        /* BaseReachableTime */


@@ -83,24 +169,68 @@ struct nd_ifinfo {
        u_int8_t chlim;                 /* CurHopLimit */
        u_int8_t receivedra;
        /* the following 3 members are for privacy extension for addrconf */
        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 */
 };
 
        u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
        u_int8_t randomid[8];   /* current random ID */
 };
 

-#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 */
 
 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 */
 };
 
        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 {
 struct in6_drlist {
        char ifname[IFNAMSIZ];
        struct {


@@ -112,14 +242,65 @@ struct    in6_drlist {
        } defrouter[DRLSTSIZ];
 };
 
        } 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;
 struct in6_defrouter {
        struct  sockaddr_in6 rtaddr;
        u_char  flags;

+       u_char  stateflags;

        u_short rtlifetime;
        u_long  expire;
        u_short if_index;
 };
 
        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 {
 struct in6_prlist {
        char ifname[IFNAMSIZ];
        struct {


@@ -136,6 +317,41 @@ struct     in6_prlist {
        } prefix[PRLSTSIZ];
 };
 
        } 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 in6_prefix {
        struct  sockaddr_in6 prefix;
        struct prf_ra raflags;


@@ -151,6 +367,38 @@ struct in6_prefix {
        /* struct sockaddr_in6 advrtr[] */
 };
 
        /* 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 {
 struct in6_ondireq {
        char ifname[IFNAMSIZ];
        struct {


@@ -166,103 +414,233 @@ struct  in6_ondireq {
        } ndi;
 };
 
        } ndi;
 };
 

+#if !defined(BSD_KERNEL_PRIVATE)

 struct in6_ndireq {
        char ifname[IFNAMSIZ];
        struct nd_ifinfo ndi;
 };
 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;
 };
 
 
 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 */
 /* 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 */
 
 /* 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:
  *
 /*
  * 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;
  */
  *         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)->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 */
 
 /* 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)
 
                ((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 {
 TAILQ_HEAD(nd_drhead, nd_defrouter);
 struct nd_defrouter {

+       decl_lck_mtx_data(, nddr_lock);

        TAILQ_ENTRY(nd_defrouter) dr_entry;
        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 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;
        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 */
        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;
        /* 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
  */
 /*
  * 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
 
 /*
  * Message format for use in obtaining information about prefixes


@@ -273,61 +651,129 @@ struct inet6_ndpr_msghdr {
        u_char  inpm_version;   /* future binary compatibility */
        u_char  inpm_type;      /* message type */
        struct in6_addr inpm_prefix;
        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 */
 };
 
        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;
 
 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_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;
 /* 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_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 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 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_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 {
 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 {
                struct nd_opt_hdr *zero;
                struct nd_opt_hdr *src_lladdr;


@@ -335,121 +781,191 @@ union nd_opts {
                struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
                struct nd_opt_rd_hdr *rh;
                struct nd_opt_mtu *mtu;
                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_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;
 };
        } 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 */
 
 /* 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 */
 
 /* 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 */
 
 /* 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
 
 
 #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_ */
 #endif /* _NETINET6_ND6_H_ */