xnu-4903.221.2.tar.gz

[apple/xnu.git] / bsd / netinet6 / in6_var.h

diff --git a/bsd/netinet6/in6_var.h b/bsd/netinet6/in6_var.h
index e33393b75b4b3c26ec776de38d6e81fc16ce5583..50cd3e9b9b43c851db951817c75f6f90dd50e668 100644 (file)
--- a/bsd/netinet6/in6_var.h
+++ b/bsd/netinet6/in6_var.h
@@ -1,5 +1,30 @@
-/*     $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.2 2001/07/03 11:01:52 ume Exp $    */
-/*     $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 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.
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.


@@ -66,26 +91,24 @@
  */
 
 #ifndef _NETINET6_IN6_VAR_H_
  */
 
 #ifndef _NETINET6_IN6_VAR_H_

-#define _NETINET6_IN6_VAR_H_
+#define        _NETINET6_IN6_VAR_H_

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

+#include <net/net_kev.h>

 
 

-#ifdef __APPLE__
+#ifdef BSD_KERNEL_PRIVATE
+#include <sys/tree.h>
+#include <sys/mcache.h>
+#endif /* BSD_KERNEL_PRIVATE */
+#include <netinet6/scope6_var.h>

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

-#endif
-
-/*
- * Interface address, Internet version.  One of these structures
- * is allocated for each interface with an Internet address.
- * The ifaddr structure contains the protocol-independent part
- * of the structure and is assumed to be first.
- */
+#include <net/ethernet.h>

 
 /*
  * pltime/vltime are just for future reference (required to implements 2
  * hour rule for hosts).  they should never be modified by nd6_timeout or
  * anywhere else.
  *     userland -> kernel: accept pltime/vltime
 
 /*
  * pltime/vltime are just for future reference (required to implements 2
  * hour rule for hosts).  they should never be modified by nd6_timeout or
  * anywhere else.
  *     userland -> kernel: accept pltime/vltime

- *     kernel -> userland: throuw up everything
+ *     kernel -> userland: throw up everything

  *     in kernel: modify preferred/expire only
  */
 struct in6_addrlifetime {
  *     in kernel: modify preferred/expire only
  */
 struct in6_addrlifetime {


@@ -95,32 +118,82 @@ struct in6_addrlifetime {
        u_int32_t ia6t_pltime;  /* prefix lifetime */
 };
 
        u_int32_t ia6t_pltime;  /* prefix lifetime */
 };
 

-#ifdef __APPLE_API_PRIVATE
-struct in6_ifaddr {
-       struct  ifaddr ia_ifa;          /* protocol-independent info */
+#ifdef BSD_KERNEL_PRIVATE
+struct in6_addrlifetime_32 {
+       u_int32_t ia6t_expire;
+       u_int32_t ia6t_preferred;
+       u_int32_t ia6t_vltime;
+       u_int32_t ia6t_pltime;
+};
+
+struct in6_addrlifetime_64 {
+       u_int64_t ia6t_expire;
+       u_int64_t ia6t_preferred;
+       u_int32_t ia6t_vltime;
+       u_int32_t ia6t_pltime;
+};
+
+/*
+ * Internal representation of ia6_lifetime (expiration in uptime unit)
+ */
+struct in6_addrlifetime_i {
+       u_int64_t ia6ti_expire;         /* valid lifetime expiration time */
+       u_int64_t ia6ti_preferred;      /* preferred lifetime expiration time */
+       u_int32_t ia6ti_vltime;         /* valid lifetime */
+       u_int32_t ia6ti_pltime;         /* prefix lifetime */
+       u_int64_t ia6ti_base_calendartime; /* calendar time at creation */
+       u_int64_t ia6ti_base_uptime;    /* uptime at creation */
+};
+
+/*
+ * Interface address, IPv6 version.  One of these structures
+ * is allocated for each interface with an IPv6 address.
+ * The ifaddr structure contains the protocol-independent part
+ * of the structure and is assumed to be first.
+ */
+
+struct in6_ifaddr {
+       struct ifaddr ia_ifa;           /* protocol-independent info */

 #define        ia_ifp          ia_ifa.ifa_ifp
 #define        ia_ifp          ia_ifa.ifa_ifp

-#define ia_flags       ia_ifa.ifa_flags
-       struct  sockaddr_in6 ia_addr;   /* interface address */
-       struct  sockaddr_in6 ia_net;    /* network number of interface */
-       struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
-       struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
+#define        ia_flags        ia_ifa.ifa_flags
+       struct sockaddr_in6 ia_addr;    /* interface address */
+       struct sockaddr_in6 ia_net;     /* network number of interface */
+       struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
+       struct sockaddr_in6 ia_prefixmask; /* prefix mask */

        u_int32_t ia_plen;              /* prefix length */
        u_int32_t ia_plen;              /* prefix length */

-       struct  in6_ifaddr *ia_next;    /* next in6 list of IP6 addresses */
-       int     ia6_flags;
+       struct in6_ifaddr *ia_next;     /* next in6 list of IP6 addresses */
+       int ia6_flags;
+
+       struct in6_addrlifetime_i ia6_lifetime;
+       /*
+        * the creation time of this address, which is
+        * currently used for temporary addresses only.
+        */
+       u_int64_t ia6_createtime;
+       u_int64_t ia6_updatetime;
+
+       /* back pointer to the ND prefix */
+       struct nd_prefix *ia6_ndpr;
+
+       /* multicast addresses joined from the kernel */
+       LIST_HEAD(, in6_multi_mship) ia6_memberships;
+};

 
 

-       struct in6_addrlifetime ia6_lifetime;
-       struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
+#define        ifatoia6(ifa)   ((struct in6_ifaddr *)(void *)(ifa))
+#endif /* BSD_KERNEL_PRIVATE */

 
 

-       struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
-                                    * (for autoconfigured addresses only)
-                                    */
+/* control structure to manage address selection policy */
+struct in6_addrpolicy {
+       struct sockaddr_in6 addr; /* prefix address */
+       struct sockaddr_in6 addrmask; /* prefix mask */
+       int preced;             /* precedence */
+       int label;              /* matching label */
+       u_quad_t use;           /* statistics */

 };
 };

-#endif /* __APPLE_API_PRIVATE */

 
 /*
  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
  */
 
 /*
  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
  */

-#ifdef __APPLE_API_UNSTABLE

 struct in6_ifstat {
        u_quad_t ifs6_in_receive;       /* # of total input datagram */
        u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */
 struct in6_ifstat {
        u_quad_t ifs6_in_receive;       /* # of total input datagram */
        u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */


@@ -148,11 +221,17 @@ struct in6_ifstat {
        u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
                                        /* NOTE: this is # after reass */
                                        /* NOTE: increment on final dst if */
        u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
                                        /* NOTE: this is # after reass */
                                        /* NOTE: increment on final dst if */

+       u_quad_t ifs6_atmfrag_rcvd;     /* # of atomic fragments received */

        u_quad_t ifs6_reass_fail;       /* # of reass failures */
                                        /* NOTE: may not be packet count */
                                        /* NOTE: increment on final dst if */
        u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
        u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */
        u_quad_t ifs6_reass_fail;       /* # of reass failures */
                                        /* NOTE: may not be packet count */
                                        /* NOTE: increment on final dst if */
        u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
        u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */

+
+       u_quad_t ifs6_cantfoward_icmp6; /* # of ICMPv6 packets received for unreachable dest */
+       u_quad_t ifs6_addr_expiry_cnt;  /* # of address expiry events (excluding privacy addresses) */
+       u_quad_t ifs6_pfx_expiry_cnt;   /* # of prefix expiry events */
+       u_quad_t ifs6_defrtr_expiry_cnt;        /* # of default router expiry events */

 };
 
 /*
 };
 
 /*


@@ -169,7 +248,7 @@ struct icmp6_ifstat {
        u_quad_t ifs6_in_error;
        /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
        u_quad_t ifs6_in_dstunreach;
        u_quad_t ifs6_in_error;
        /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
        u_quad_t ifs6_in_dstunreach;

-       /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
+       /* ipv6IfIcmpInAdminProhibs, # of input admin. prohibited errs */

        u_quad_t ifs6_in_adminprohib;
        /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
        u_quad_t ifs6_in_timeexceed;
        u_quad_t ifs6_in_adminprohib;
        /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
        u_quad_t ifs6_in_timeexceed;


@@ -187,7 +266,7 @@ struct icmp6_ifstat {
        u_quad_t ifs6_in_routeradvert;
        /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
        u_quad_t ifs6_in_neighborsolicit;
        u_quad_t ifs6_in_routeradvert;
        /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
        u_quad_t ifs6_in_neighborsolicit;

-       /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
+       /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advs. */

        u_quad_t ifs6_in_neighboradvert;
        /* ipv6IfIcmpInRedirects, # of input redirects */
        u_quad_t ifs6_in_redirect;
        u_quad_t ifs6_in_neighboradvert;
        /* ipv6IfIcmpInRedirects, # of input redirects */
        u_quad_t ifs6_in_redirect;


@@ -207,7 +286,7 @@ struct icmp6_ifstat {
        u_quad_t ifs6_out_error;
        /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
        u_quad_t ifs6_out_dstunreach;
        u_quad_t ifs6_out_error;
        /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
        u_quad_t ifs6_out_dstunreach;

-       /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
+       /* ipv6IfIcmpOutAdminProhibs, # of output admin. prohibited errs */

        u_quad_t ifs6_out_adminprohib;
        /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
        u_quad_t ifs6_out_timeexceed;
        u_quad_t ifs6_out_adminprohib;
        /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
        u_quad_t ifs6_out_timeexceed;


@@ -221,11 +300,11 @@ struct icmp6_ifstat {
        u_quad_t ifs6_out_echoreply;
        /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
        u_quad_t ifs6_out_routersolicit;
        u_quad_t ifs6_out_echoreply;
        /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
        u_quad_t ifs6_out_routersolicit;

-       /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
+       /* ipv6IfIcmpOutRouterAdvertisements, # of output router advs. */

        u_quad_t ifs6_out_routeradvert;
        /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
        u_quad_t ifs6_out_neighborsolicit;
        u_quad_t ifs6_out_routeradvert;
        /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
        u_quad_t ifs6_out_neighborsolicit;

-       /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
+       /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advs. */

        u_quad_t ifs6_out_neighboradvert;
        /* ipv6IfIcmpOutRedirects, # of output redirects */
        u_quad_t ifs6_out_redirect;
        u_quad_t ifs6_out_neighboradvert;
        /* ipv6IfIcmpOutRedirects, # of output redirects */
        u_quad_t ifs6_out_redirect;


@@ -236,25 +315,25 @@ struct icmp6_ifstat {
        /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
        u_quad_t ifs6_out_mlddone;
 };
        /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
        u_quad_t ifs6_out_mlddone;
 };

-#endif /* __APPLE_API_UNSTABLE */

 
 

-struct in6_ifreq {
+struct in6_ifreq {

        char    ifr_name[IFNAMSIZ];
        union {
                struct  sockaddr_in6 ifru_addr;
                struct  sockaddr_in6 ifru_dstaddr;
        char    ifr_name[IFNAMSIZ];
        union {
                struct  sockaddr_in6 ifru_addr;
                struct  sockaddr_in6 ifru_dstaddr;

-               short   ifru_flags;
+               int     ifru_flags;

                int     ifru_flags6;
                int     ifru_metric;
                int     ifru_flags6;
                int     ifru_metric;

+               int     ifru_intval;

                caddr_t ifru_data;
                struct in6_addrlifetime ifru_lifetime;
                struct in6_ifstat ifru_stat;
                struct icmp6_ifstat ifru_icmp6stat;
                caddr_t ifru_data;
                struct in6_addrlifetime ifru_lifetime;
                struct in6_ifstat ifru_stat;
                struct icmp6_ifstat ifru_icmp6stat;

-               u_int32_t ifru_scope_id[16];
+               u_int32_t ifru_scope_id[SCOPE6_ID_MAX];

        } ifr_ifru;
 };
 
        } ifr_ifru;
 };
 

-struct in6_aliasreq {
+struct in6_aliasreq {

        char    ifra_name[IFNAMSIZ];
        struct  sockaddr_in6 ifra_addr;
        struct  sockaddr_in6 ifra_dstaddr;
        char    ifra_name[IFNAMSIZ];
        struct  sockaddr_in6 ifra_addr;
        struct  sockaddr_in6 ifra_dstaddr;


@@ -263,9 +342,106 @@ struct    in6_aliasreq {
        struct in6_addrlifetime ifra_lifetime;
 };
 
        struct in6_addrlifetime ifra_lifetime;
 };
 

+#ifdef PRIVATE
+#define        IN6_CGA_MODIFIER_LENGTH 16
+
+struct in6_cga_modifier {
+       u_int8_t octets[IN6_CGA_MODIFIER_LENGTH];
+};
+
+struct in6_cga_prepare {
+       struct in6_cga_modifier cga_modifier;
+       u_int8_t cga_security_level;
+       u_int8_t reserved_A[15];
+};
+
+#define        IN6_CGA_KEY_MAXSIZE     2048    /* octets */
+
+struct in6_cga_nodecfg {
+       struct iovec cga_privkey;
+       struct iovec cga_pubkey;
+       struct in6_cga_prepare cga_prepare;
+};
+
+/*
+ * XXX in6_llstartreq will be removed once
+ * configd adopts the more generically named
+ * in6_cgareq structure.
+ */
+struct in6_llstartreq {
+       char llsr_name[IFNAMSIZ];
+       int llsr_flags;
+       struct in6_cga_prepare llsr_cgaprep;
+       struct in6_addrlifetime llsr_lifetime;
+};
+
+struct in6_cgareq {
+       char cgar_name[IFNAMSIZ];
+       int cgar_flags;
+       struct in6_cga_prepare cgar_cgaprep;
+       struct in6_addrlifetime cgar_lifetime;
+};
+
+#ifdef BSD_KERNEL_PRIVATE
+/*
+ * XXX Corresponding versions of in6_llstartreq
+ * will be removed after the new in6_cgareq is
+ * adopted by configd
+ */
+struct in6_llstartreq_32 {
+       char llsr_name[IFNAMSIZ];
+       int llsr_flags;
+       struct in6_cga_prepare llsr_cgaprep;
+       struct in6_addrlifetime_32 llsr_lifetime;
+};
+
+struct in6_llstartreq_64 {
+       char llsr_name[IFNAMSIZ];
+       int llsr_flags;
+       struct in6_cga_prepare llsr_cgaprep;
+       struct in6_addrlifetime_64 llsr_lifetime;
+};
+
+struct in6_cgareq_32 {
+       char cgar_name[IFNAMSIZ];
+       int cgar_flags;
+       struct in6_cga_prepare cgar_cgaprep;
+       struct in6_addrlifetime_32 cgar_lifetime;
+};
+
+struct in6_cgareq_64 {
+       char cgar_name[IFNAMSIZ];
+       int cgar_flags;
+       struct in6_cga_prepare cgar_cgaprep;
+       struct in6_addrlifetime_64 cgar_lifetime;
+};
+
+#endif /* !BSD_KERNEL_PRIVATE */
+#endif /* PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE
+struct in6_aliasreq_32 {
+       char    ifra_name[IFNAMSIZ];
+       struct  sockaddr_in6 ifra_addr;
+       struct  sockaddr_in6 ifra_dstaddr;
+       struct  sockaddr_in6 ifra_prefixmask;
+       int     ifra_flags;
+       struct in6_addrlifetime_32 ifra_lifetime;
+};
+
+struct in6_aliasreq_64 {
+       char    ifra_name[IFNAMSIZ];
+       struct  sockaddr_in6 ifra_addr;
+       struct  sockaddr_in6 ifra_dstaddr;
+       struct  sockaddr_in6 ifra_prefixmask;
+       int     ifra_flags;
+       struct in6_addrlifetime_64 ifra_lifetime;
+};
+#endif /* BSD_KERNEL_PRIVATE */
+

 /* prefix type macro */
 /* prefix type macro */

-#define IN6_PREFIX_ND  1
-#define IN6_PREFIX_RR  2
+#define        IN6_PREFIX_ND   1
+#define        IN6_PREFIX_RR   2

 
 /*
  * prefix related flags passed between kernel(NDP related part) and
 
 /*
  * prefix related flags passed between kernel(NDP related part) and


@@ -299,20 +475,20 @@ struct  in6_prefixreq {
        struct  sockaddr_in6 ipr_prefix;
 };
 
        struct  sockaddr_in6 ipr_prefix;
 };
 

-#define PR_ORIG_RA     0
-#define PR_ORIG_RR     1
-#define PR_ORIG_STATIC 2
-#define PR_ORIG_KERNEL 3
+#define        PR_ORIG_RA      0
+#define        PR_ORIG_RR      1
+#define        PR_ORIG_STATIC  2
+#define        PR_ORIG_KERNEL  3

 
 

-#define ipr_raf_onlink         ipr_flags.prf_ra.onlink
-#define ipr_raf_auto           ipr_flags.prf_ra.autonomous
+#define        ipr_raf_onlink          ipr_flags.prf_ra.onlink
+#define        ipr_raf_auto            ipr_flags.prf_ra.autonomous

 
 

-#define ipr_statef_onlink      ipr_flags.prf_state.onlink
+#define        ipr_statef_onlink       ipr_flags.prf_state.onlink

 
 

-#define ipr_rrf_decrvalid      ipr_flags.prf_rr.decrvalid
-#define ipr_rrf_decrprefd      ipr_flags.prf_rr.decrprefd
+#define        ipr_rrf_decrvalid       ipr_flags.prf_rr.decrvalid
+#define        ipr_rrf_decrprefd       ipr_flags.prf_rr.decrprefd

 
 

-struct in6_rrenumreq {
+struct in6_rrenumreq {

        char    irr_name[IFNAMSIZ];
        u_char  irr_origin;
        u_char  irr_m_len;      /* match len for matchprefix */
        char    irr_name[IFNAMSIZ];
        u_char  irr_origin;
        u_char  irr_m_len;      /* match len for matchprefix */


@@ -332,266 +508,547 @@ struct  in6_rrenumreq {
        struct  sockaddr_in6 irr_useprefix;
 };
 
        struct  sockaddr_in6 irr_useprefix;
 };
 

-#define irr_raf_mask_onlink    irr_raflagmask.onlink
-#define irr_raf_mask_auto      irr_raflagmask.autonomous
-#define irr_raf_mask_reserved  irr_raflagmask.reserved
+#define        irr_raf_mask_onlink     irr_raflagmask.onlink
+#define        irr_raf_mask_auto       irr_raflagmask.autonomous
+#define        irr_raf_mask_reserved   irr_raflagmask.reserved

 
 

-#define irr_raf_onlink         irr_flags.prf_ra.onlink
-#define irr_raf_auto           irr_flags.prf_ra.autonomous
+#define        irr_raf_onlink          irr_flags.prf_ra.onlink
+#define        irr_raf_auto            irr_flags.prf_ra.autonomous

 
 

-#define irr_statef_onlink      irr_flags.prf_state.onlink
+#define        irr_statef_onlink       irr_flags.prf_state.onlink

 
 

-#define irr_rrf                        irr_flags.prf_rr
-#define irr_rrf_decrvalid      irr_flags.prf_rr.decrvalid
-#define irr_rrf_decrprefd      irr_flags.prf_rr.decrprefd
+#define        irr_rrf                 irr_flags.prf_rr
+#define        irr_rrf_decrvalid       irr_flags.prf_rr.decrvalid
+#define        irr_rrf_decrprefd       irr_flags.prf_rr.decrprefd
+
+/*
+ * Event data, inet6 style.
+ */
+struct kev_in6_addrlifetime {
+       u_int32_t ia6t_expire;
+       u_int32_t ia6t_preferred;
+       u_int32_t ia6t_vltime;
+       u_int32_t ia6t_pltime;
+};
+
+struct kev_in6_data {
+       struct net_event_data link_data;
+       struct sockaddr_in6 ia_addr;    /* interface address */
+       struct sockaddr_in6 ia_net;     /* network number of interface */
+       struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
+       struct sockaddr_in6 ia_prefixmask; /* prefix mask */
+       u_int32_t ia_plen;              /* prefix length */
+       u_int32_t ia6_flags;            /* address flags from in6_ifaddr */
+       struct kev_in6_addrlifetime ia_lifetime; /* address life info */
+       uint8_t ia_mac[ETHER_ADDR_LEN];
+};
+
+#ifdef BSD_KERNEL_PRIVATE
+/* Utility function used inside netinet6 kernel code for generating events */
+void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *, uint8_t *mac);
+
+#define        IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)      (       \
+       (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
+       (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
+       (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
+       (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0)

 
 

-#ifdef __APPLE_API_PRIVATE

 /*
  * Given a pointer to an in6_ifaddr (ifaddr),
  * return a pointer to the addr as a sockaddr_in6
  */
 /*
  * Given a pointer to an in6_ifaddr (ifaddr),
  * return a pointer to the addr as a sockaddr_in6
  */

-#define IA6_IN6(ia)    (&((ia)->ia_addr.sin6_addr))
-#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
-#define IA6_MASKIN6(ia)        (&((ia)->ia_prefixmask.sin6_addr))
-#define IA6_SIN6(ia)   (&((ia)->ia_addr))
-#define IA6_DSTSIN6(ia)        (&((ia)->ia_dstaddr))
-#define IFA_IN6(x)     (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
-#define IFA_DSTIN6(x)  (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
-
-#define IFPR_IN6(x)    (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
+#define        IA6_IN6(ia)     (&((ia)->ia_addr.sin6_addr))
+#define        IA6_DSTIN6(ia)  (&((ia)->ia_dstaddr.sin6_addr))
+#define        IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
+#define        IA6_SIN6(ia)    (&((ia)->ia_addr))
+#define        IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
+#define        IFA_IN6(x)      \
+       (&((struct sockaddr_in6 *)(void *)((x)->ifa_addr))->sin6_addr)
+#define        IFA_DSTIN6(x)   \
+       (&((struct sockaddr_in6 *)(void *)((x)->ifa_dstaddr))->sin6_addr)
+#define        IFPR_IN6(x)     \
+       (&((struct sockaddr_in6 *)(void *)((x)->ifpr_prefix))->sin6_addr)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        SIOCSIFADDR_IN6          _IOW('i', 12, struct in6_ifreq)
+#define        SIOCGIFADDR_IN6         _IOWR('i', 33, struct in6_ifreq)

 
 

+/*
+ * SIOCSxxx ioctls should be unused (see comments in in6.c), but
+ * we do not shift numbers for binary compatibility.
+ */
+#define        SIOCSIFDSTADDR_IN6      _IOW('i', 14, struct in6_ifreq)
+#define        SIOCSIFNETMASK_IN6      _IOW('i', 22, struct in6_ifreq)
+
+#define        SIOCGIFDSTADDR_IN6      _IOWR('i', 34, struct in6_ifreq)
+#define        SIOCGIFNETMASK_IN6      _IOWR('i', 37, struct in6_ifreq)
+
+#define        SIOCDIFADDR_IN6         _IOW('i', 25, struct in6_ifreq)
+#define        SIOCAIFADDR_IN6         _IOW('i', 26, struct in6_aliasreq)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCAIFADDR_IN6_32      _IOW('i', 26, struct in6_aliasreq_32)
+#define        SIOCAIFADDR_IN6_64      _IOW('i', 26, struct in6_aliasreq_64)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        SIOCSIFPHYADDR_IN6      _IOW('i', 62, struct in6_aliasreq)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCSIFPHYADDR_IN6_32   _IOW('i', 62, struct in6_aliasreq_32)
+#define        SIOCSIFPHYADDR_IN6_64   _IOW('i', 62, struct in6_aliasreq_64)
+#endif /* BSD_KERNEL_PRIVATE */
+#define        SIOCGIFPSRCADDR_IN6     _IOWR('i', 63, struct in6_ifreq)
+#define        SIOCGIFPDSTADDR_IN6     _IOWR('i', 64, struct in6_ifreq)
+#define        SIOCGIFAFLAG_IN6        _IOWR('i', 73, struct in6_ifreq)
+
+#define        SIOCGDRLST_IN6          _IOWR('i', 74, struct in6_drlist)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCGDRLST_IN6_32       _IOWR('i', 74, struct in6_drlist_32)
+#define        SIOCGDRLST_IN6_64       _IOWR('i', 74, struct in6_drlist_64)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        SIOCGPRLST_IN6          _IOWR('i', 75, struct in6_prlist)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCGPRLST_IN6_32       _IOWR('i', 75, struct in6_prlist_32)
+#define        SIOCGPRLST_IN6_64       _IOWR('i', 75, struct in6_prlist_64)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        OSIOCGIFINFO_IN6        _IOWR('i', 108, struct in6_ondireq)
+#define        SIOCGIFINFO_IN6         _IOWR('i', 76, struct in6_ondireq)
+#define        SIOCSNDFLUSH_IN6        _IOWR('i', 77, struct in6_ifreq)
+
+#define        SIOCGNBRINFO_IN6        _IOWR('i', 78, struct in6_nbrinfo)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCGNBRINFO_IN6_32     _IOWR('i', 78, struct in6_nbrinfo_32)
+#define        SIOCGNBRINFO_IN6_64     _IOWR('i', 78, struct in6_nbrinfo_64)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        SIOCSPFXFLUSH_IN6       _IOWR('i', 79, struct in6_ifreq)
+#define        SIOCSRTRFLUSH_IN6       _IOWR('i', 80, struct in6_ifreq)
+
+#define        SIOCGIFALIFETIME_IN6    _IOWR('i', 81, struct in6_ifreq)
+#define        SIOCSIFALIFETIME_IN6    _IOWR('i', 82, struct in6_ifreq)
+#define        SIOCGIFSTAT_IN6         _IOWR('i', 83, struct in6_ifreq)
+#define        SIOCGIFSTAT_ICMP6       _IOWR('i', 84, struct in6_ifreq)
+
+#define        SIOCSDEFIFACE_IN6       _IOWR('i', 85, struct in6_ndifreq)
+#define        SIOCGDEFIFACE_IN6       _IOWR('i', 86, struct in6_ndifreq)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCSDEFIFACE_IN6_32    _IOWR('i', 85, struct in6_ndifreq_32)
+#define        SIOCSDEFIFACE_IN6_64    _IOWR('i', 85, struct in6_ndifreq_64)
+#define        SIOCGDEFIFACE_IN6_32    _IOWR('i', 86, struct in6_ndifreq_32)
+#define        SIOCGDEFIFACE_IN6_64    _IOWR('i', 86, struct in6_ndifreq_64)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        SIOCSIFINFO_FLAGS       _IOWR('i', 87, struct in6_ndireq) /* XXX */
+
+/* N.B.: These 3 ioctls are deprecated and won't work */
+#define        SIOCSSCOPE6             _IOW('i', 88, struct in6_ifreq)
+#define        SIOCGSCOPE6             _IOWR('i', 89, struct in6_ifreq)
+#define        SIOCGSCOPE6DEF          _IOWR('i', 90, struct in6_ifreq)
+
+#define        SIOCSIFPREFIX_IN6       _IOW('i', 100, struct in6_prefixreq) /* set */
+#define        SIOCGIFPREFIX_IN6       _IOWR('i', 101, struct in6_prefixreq) /* get */
+#define        SIOCDIFPREFIX_IN6       _IOW('i', 102, struct in6_prefixreq) /* del */
+#define        SIOCAIFPREFIX_IN6       _IOW('i', 103, struct in6_rrenumreq) /* add */
+
+/* change */
+#define        SIOCCIFPREFIX_IN6       _IOW('i', 104, struct in6_rrenumreq)
+
+/* set global */
+#define        SIOCSGIFPREFIX_IN6      _IOW('i', 105, struct in6_rrenumreq)

 
 

-#ifdef __APPLE__

 /*
 /*

- * Event data, internet6 style.
+ * multicast routing, get s/g pkt cnt, pkt cnt per interface.

  */
  */

+#define        SIOCGETSGCNT_IN6        _IOWR('u', 28, struct sioc_sg_req6)
+#define        SIOCGETMIFCNT_IN6       _IOWR('u', 107, struct sioc_mif_req6)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCGETMIFCNT_IN6_32    _IOWR('u', 107, struct sioc_mif_req6_32)
+#define        SIOCGETMIFCNT_IN6_64    _IOWR('u', 107, struct sioc_mif_req6_64)
+#endif /* BSD_KERNEL_PRIVATE */

 
 

-struct kev_in6_data {
-        struct net_event_data   link_data;
-       struct  sockaddr_in6 ia_addr;   /* interface address */
-       struct  sockaddr_in6 ia_net;    /* network number of interface */
-       struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
-       struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
-       u_int32_t ia_plen;              /* prefix length */
-       u_int32_t ia6_flags;            /* address flags from in6_ifaddr */
-       struct in6_addrlifetime ia_lifetime; /* address life info */
-};
+#define        SIOCAADDRCTL_POLICY     _IOW('u', 108, struct in6_addrpolicy)
+#define        SIOCDADDRCTL_POLICY     _IOW('u', 109, struct in6_addrpolicy)

 
 

+#ifdef PRIVATE
+/*
+ * temporary control calls to attach/detach IPv6 to/from an interface.
+ */
+#define        SIOCPROTOATTACH_IN6     _IOWR('i', 110, struct in6_aliasreq)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCPROTOATTACH_IN6_32  _IOWR('i', 110, struct in6_aliasreq_32)
+#define        SIOCPROTOATTACH_IN6_64  _IOWR('i', 110, struct in6_aliasreq_64)
+#endif /* BSD_KERNEL_PRIVATE */
+#define        SIOCPROTODETACH_IN6     _IOWR('i', 111, struct in6_ifreq)

 
 /*
 
 /*

- * Define inet6 event subclass and specific inet6 events.
+ * start/stop aquiring linklocal on interface

  */
  */

+#define        SIOCLL_START            _IOWR('i', 130, struct in6_aliasreq)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCLL_START_32         _IOWR('i', 130, struct in6_aliasreq_32)
+#define        SIOCLL_START_64         _IOWR('i', 130, struct in6_aliasreq_64)
+#endif /* BSD_KERNEL_PRIVATE */
+#define        SIOCLL_STOP             _IOWR('i', 131, struct in6_ifreq)

 
 

-#define KEV_INET6_SUBCLASS 6   /* inet6 subclass identifier */
+/*
+ * accept rtadvd (and stop accepting) on this interface.
+ */
+#define        SIOCAUTOCONF_START      _IOWR('i', 132, struct in6_ifreq)
+#define        SIOCAUTOCONF_STOP       _IOWR('i', 133, struct in6_ifreq)

 
 

-#define KEV_INET6_NEW_USER_ADDR                1       /* Userland configured IPv6 address */
-#define KEV_INET6_CHANGED_ADDR                 2       /* Address changed event (future) */
-#define KEV_INET6_ADDR_DELETED                 3       /* IPv6 add. in ia_addr field was deleted */
-#define KEV_INET6_NEW_LL_ADDR          4       /* Autoconfigured linklocal address has appeared */
-#define KEV_INET6_NEW_RTADV_ADDR       5       /* Autoconf router advertised address has appeared */
-#define KEV_INET6_DEFROUTER            6       /* Default router dectected by kernel */
+/*
+ * add/remove default IPv6 router.
+ */
+#define        SIOCDRADD_IN6           _IOWR('u', 134, struct in6_defrouter)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCDRADD_IN6_32        _IOWR('u', 134, struct in6_defrouter_32)
+#define        SIOCDRADD_IN6_64        _IOWR('u', 134, struct in6_defrouter_64)
+#endif /* BSD_KERNEL_PRIVATE */
+#define        SIOCDRDEL_IN6           _IOWR('u', 135, struct in6_defrouter)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCDRDEL_IN6_32        _IOWR('u', 135, struct in6_defrouter_32)
+#define        SIOCDRDEL_IN6_64        _IOWR('u', 135, struct in6_defrouter_64)
+#endif /* BSD_KERNEL_PRIVATE */

 
 

-#ifdef KERNEL
-/* Utility function used inside netinet6 kernel code for generating events */
-void in6_post_msg(struct ifnet *, u_long, struct in6_ifaddr *);
-#endif
-#endif /* __APPLE__ */
-#endif /* __APPLE_API_PRIVATE */
+/*
+ * enable/disable IPv6 router mode on interface.
+ */
+#define        SIOCSETROUTERMODE_IN6   _IOWR('i', 136, struct in6_ifreq)

 
 

-#ifdef KERNEL
-#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)     (       \
-       (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
-       (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
-       (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
-       (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
+/*
+ * start secure link-local interface addresses
+ */
+#define        SIOCLL_CGASTART         _IOW('i', 160, struct in6_cgareq)
+#ifdef BSD_KERNEL_PRIVATE
+#define        SIOCLL_CGASTART_32      _IOW('i', 160, struct in6_cgareq_32)
+#define        SIOCLL_CGASTART_64      _IOW('i', 160, struct in6_cgareq_64)

 #endif
 
 #endif
 

-#define SIOCSIFADDR_IN6                 _IOW('i', 12, struct in6_ifreq)
-#define SIOCGIFADDR_IN6                _IOWR('i', 33, struct in6_ifreq)
+#define        SIOCGIFCGAPREP_IN6      _IOWR('i', 187, struct in6_cgareq)
+#define        SIOCSIFCGAPREP_IN6      _IOWR('i', 188, struct in6_cgareq)

 
 

-#ifdef KERNEL
-#ifdef __APPLE_API_OBSOLETE
+#define        SIOCCLAT46_START        _IOWR('i', 189, struct in6_ifreq)
+#define        SIOCCLAT46_STOP         _IOWR('i', 190, struct in6_ifreq)
+#endif /* PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE

 /*
 /*

- * SIOCSxxx ioctls should be unused (see comments in in6.c), but
- * we do not shift numbers for binary compatibility.
+ * XXX: Do not extend IN6_IFF values beyond 16-bit.  We currently copy the
+ *     values from ia6_flags as is into m_pkthdr.{src,dst}_iff which are
+ *     defined as 16-bit variables.  We can relax this once we define a
+ *     unified set of interface flags for {ia,ia6}_flags and perform
+ *     translation between those and the publicly-defined ones below.

  */
  */

-#define SIOCSIFDSTADDR_IN6      _IOW('i', 14, struct in6_ifreq)
-#define SIOCSIFNETMASK_IN6      _IOW('i', 22, struct in6_ifreq)
-#endif /* __APPLE_API_OBSOLETE */
+#endif /* BSD_KERNEL_PRIVATE */
+#define        IN6_IFF_ANYCAST         0x0001  /* anycast address */
+#define        IN6_IFF_TENTATIVE       0x0002  /* tentative address */
+#define        IN6_IFF_DUPLICATED      0x0004  /* DAD detected duplicate */
+#define        IN6_IFF_DETACHED        0x0008  /* may be detached from the link */
+#define        IN6_IFF_DEPRECATED      0x0010  /* deprecated address */
+
+/* don't perform DAD on this address (used only at first SIOC* call) */
+#define        IN6_IFF_NODAD           0x0020
+
+#define        IN6_IFF_AUTOCONF        0x0040  /* autoconfigurable address. */
+#define        IN6_IFF_TEMPORARY       0x0080  /* temporary (anonymous) address. */
+#define        IN6_IFF_DYNAMIC         0x0100  /* assigned by DHCPv6 service */
+#define        IN6_IFF_OPTIMISTIC      0x0200  /* optimistic DAD, i.e. RFC 4429 */
+#define        IN6_IFF_SECURED         0x0400  /* cryptographically generated */
+#ifdef PRIVATE
+#define        IN6_IFF_SWIFTDAD        0x0800  /* DAD with no delay */

 #endif
 #endif

+#define        IN6_IFF_CLAT46          0x1000  /* Address reserved for CLAT46 */
+#define        IN6_IFF_NOPFX           0x8000  /* Depreciated. Don't use. */

 
 

-#define SIOCGIFDSTADDR_IN6     _IOWR('i', 34, struct in6_ifreq)
-#define SIOCGIFNETMASK_IN6     _IOWR('i', 37, struct in6_ifreq)
-
-#define SIOCDIFADDR_IN6                 _IOW('i', 25, struct in6_ifreq)
-#define SIOCAIFADDR_IN6                 _IOW('i', 26, struct in6_aliasreq)
-
-#define SIOCSIFPHYADDR_IN6     _IOW('i', 62, struct in6_aliasreq)
-#define        SIOCGIFPSRCADDR_IN6     _IOWR('i', 63, struct in6_ifreq)
-#define        SIOCGIFPDSTADDR_IN6     _IOWR('i', 64, struct in6_ifreq)
-#define SIOCGIFAFLAG_IN6       _IOWR('i', 73, struct in6_ifreq)
-#define SIOCGDRLST_IN6         _IOWR('i', 74, struct in6_drlist)
-#define SIOCGPRLST_IN6         _IOWR('i', 75, struct in6_prlist)
-#define OSIOCGIFINFO_IN6       _IOWR('i', 108, struct in6_ondireq)
-#define SIOCGIFINFO_IN6                _IOWR('i', 76, struct in6_ondireq)
-#define SIOCSNDFLUSH_IN6       _IOWR('i', 77, struct in6_ifreq)
-#define SIOCGNBRINFO_IN6       _IOWR('i', 78, struct in6_nbrinfo)
-#define SIOCSPFXFLUSH_IN6      _IOWR('i', 79, struct in6_ifreq)
-#define SIOCSRTRFLUSH_IN6      _IOWR('i', 80, struct in6_ifreq)
-
-#define SIOCGIFALIFETIME_IN6   _IOWR('i', 81, struct in6_ifreq)
-#define SIOCSIFALIFETIME_IN6   _IOWR('i', 82, struct in6_ifreq)
-#define SIOCGIFSTAT_IN6                _IOWR('i', 83, struct in6_ifreq)
-#define SIOCGIFSTAT_ICMP6      _IOWR('i', 84, struct in6_ifreq)
-
-#define SIOCSDEFIFACE_IN6      _IOWR('i', 85, struct in6_ndifreq)
-#define SIOCGDEFIFACE_IN6      _IOWR('i', 86, struct in6_ndifreq)
-
-#define SIOCSIFINFO_FLAGS      _IOWR('i', 87, struct in6_ndireq) /* XXX */
-
-#define SIOCSSCOPE6            _IOW('i', 88, struct in6_ifreq)
-#define SIOCGSCOPE6            _IOWR('i', 89, struct in6_ifreq)
-#define SIOCGSCOPE6DEF         _IOWR('i', 90, struct in6_ifreq)
-
-#define SIOCSIFPREFIX_IN6      _IOW('i', 100, struct in6_prefixreq) /* set */
-#define SIOCGIFPREFIX_IN6      _IOWR('i', 101, struct in6_prefixreq) /* get */
-#define SIOCDIFPREFIX_IN6      _IOW('i', 102, struct in6_prefixreq) /* del */
-#define SIOCAIFPREFIX_IN6      _IOW('i', 103, struct in6_rrenumreq) /* add */
-#define SIOCCIFPREFIX_IN6      _IOW('i', 104, \
-                                    struct in6_rrenumreq) /* change */
-#define SIOCSGIFPREFIX_IN6     _IOW('i', 105, \
-                                    struct in6_rrenumreq) /* set global */
-
-#define SIOCGETSGCNT_IN6       _IOWR('u', 28, \
-                                     struct sioc_sg_req6) /* get s,g pkt cnt */
-#define SIOCGETMIFCNT_IN6      _IOWR('u', 107, \
-                                     struct sioc_mif_req6) /* get pkt cnt per if */
-
-#define IN6_IFF_ANYCAST                0x01    /* anycast address */
-#define IN6_IFF_TENTATIVE      0x02    /* tentative address */
-#define IN6_IFF_DUPLICATED     0x04    /* DAD detected duplicate */
-#define IN6_IFF_DETACHED       0x08    /* may be detached from the link */
-#define IN6_IFF_DEPRECATED     0x10    /* deprecated address */
-#define IN6_IFF_NODAD          0x20    /* don't perform DAD on this address
-                                        * (used only at first SIOC* call)
-                                        */
-#define IN6_IFF_AUTOCONF       0x40    /* autoconfigurable address. */
-#define IN6_IFF_TEMPORARY      0x80    /* temporary (anonymous) address. */
-#define IN6_IFF_NOPFX          0x8000  /* skip kernel prefix management.
-                                        * XXX: this should be temporary.
-                                        */
+/* Duplicate Address Detection [DAD] in progress. */
+#define        IN6_IFF_DADPROGRESS     (IN6_IFF_TENTATIVE|IN6_IFF_OPTIMISTIC)

 
 /* do not input/output */
 
 /* do not input/output */

-#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
+#define        IN6_IFF_NOTREADY        (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)

 
 

-#ifdef KERNEL
-#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
-#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
-#endif
+/* SLAAC/DHCPv6 address */
+#define IN6_IFF_NOTMANUAL      (IN6_IFF_AUTOCONF|IN6_IFF_DYNAMIC)

 
 #ifdef KERNEL
 
 #ifdef KERNEL

-#ifdef __APPLE_API_PRIVATE
-extern struct in6_ifaddr *in6_ifaddr;
+#define        IN6_ARE_SCOPE_CMP(a, b)         ((a) - (b))
+#define        IN6_ARE_SCOPE_EQUAL(a, b)       ((a) == (b))
+#endif /* KERNEL */
+
+#ifdef BSD_KERNEL_PRIVATE
+extern struct in6_ifaddr *in6_ifaddrs;

 
 

-extern struct in6_ifstat **in6_ifstat;
-extern size_t in6_ifstatmax;

 extern struct icmp6stat icmp6stat;
 extern struct icmp6stat icmp6stat;

-extern struct icmp6_ifstat **icmp6_ifstat;
-extern size_t icmp6_ifstatmax;
-#define in6_ifstat_inc(ifp, tag) \
-do {                                                           \
-       if ((ifp) && (ifp)->if_index <= if_index                \
-        && (ifp)->if_index < in6_ifstatmax                     \
-        && in6_ifstat && in6_ifstat[(ifp)->if_index]) {        \
-               in6_ifstat[(ifp)->if_index]->tag++;             \
-       }                                                       \
+extern lck_rw_t in6_ifaddr_rwlock;
+extern lck_mtx_t proxy6_lock;
+extern u_char inet6ctlerrmap[];
+extern u_int32_t in6_maxmtu;
+
+/* N.B.: if_inet6data is never freed once set, so we don't need to lock */
+#define        in6_ifstat_inc_common(_ifp, _tag, _atomic) do {                 \
+       if (_ifp != NULL && IN6_IFEXTRA(_ifp) != NULL) {                \
+               if (_atomic)                                            \
+                       atomic_add_64(                                  \
+                           &IN6_IFEXTRA(_ifp)->in6_ifstat._tag, 1);    \
+               else                                                    \
+                       IN6_IFEXTRA(_ifp)->in6_ifstat._tag++;           \
+       }                                                               \

 } while (0)
 
 } while (0)
 

-extern struct ifqueue ip6intrq;                /* IP6 packet input queue */
-extern struct in6_addr zeroin6_addr;
-extern u_char inet6ctlerrmap[];
-extern unsigned long in6_maxmtu;
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_IPMADDR);
-#endif
+/* atomic version */
+#define        in6_ifstat_inc(_ifp, _tag) \
+       in6_ifstat_inc_common(_ifp, _tag, TRUE)
+
+/* non-atomic version (for fast paths) */
+#define        in6_ifstat_inc_na(_ifp, _tag) \
+       in6_ifstat_inc_common(_ifp, _tag, FALSE)

 
 /*
  * Macro for finding the internet address structure (in6_ifaddr) corresponding
  * to a given interface (ifnet structure).
  */
 
 
 /*
  * Macro for finding the internet address structure (in6_ifaddr) corresponding
  * to a given interface (ifnet structure).
  */
 

-#define IFP_TO_IA6(ifp, ia)                            \
-/* struct ifnet *ifp; */                               \
-/* struct in6_ifaddr *ia; */                           \
+#define        IFP_TO_IA6(ifp, ia)                                             \
+       /* struct ifnet *ifp; */                                        \
+       /* struct in6_ifaddr *ia; */                                    \

 do {                                                                   \
 do {                                                                   \

-       struct ifaddr *ifa;                                             \
-       for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) {   \
-               if (!ifa->ifa_addr)                                     \
-                       continue;                                       \
-               if (ifa->ifa_addr->sa_family == AF_INET6)               \
+       struct ifaddr *_ifa;                                            \
+       ifnet_lock_assert(ifp, LCK_RW_ASSERT_HELD);                     \
+       for (_ifa = (ifp)->if_addrlist.tqh_first; _ifa != NULL;         \
+           _ifa = _ifa->ifa_list.tqe_next) {                           \
+               IFA_LOCK(_ifa);                                         \
+               if (_ifa->ifa_addr->sa_family == AF_INET6) {            \
+                       IFA_ADDREF_LOCKED(_ifa);                        \
+                       IFA_UNLOCK(_ifa);                               \

                        break;                                          \
                        break;                                          \

+               }                                                       \
+               IFA_UNLOCK(_ifa);                                       \

        }                                                               \
        }                                                               \

-       (ia) = (struct in6_ifaddr *)ifa;                                \
+       (ia) = (struct in6_ifaddr *)_ifa;                               \

 } while (0)
 
 } while (0)
 

-#endif /* __APPLE_API_PRIVATE */
-#endif /* KERNEL */
+/*
+ * IPv6 multicast MLD-layer source entry.
+ */
+struct ip6_msource {
+       RB_ENTRY(ip6_msource)   im6s_link;      /* RB tree links */
+       struct in6_addr         im6s_addr;
+       struct im6s_st {
+               uint16_t        ex;             /* # of exclusive members */
+               uint16_t        in;             /* # of inclusive members */
+       }                       im6s_st[2];     /* state at t0, t1 */
+       uint8_t                 im6s_stp;       /* pending query */
+};
+
+RB_HEAD(ip6_msource_tree, ip6_msource);
+
+RB_PROTOTYPE_SC_PREV(__private_extern__, ip6_msource_tree, ip6_msource,
+    im6s_link, ip6_msource_cmp);
+
+/*
+ * IPv6 multicast PCB-layer source entry.
+ *
+ * NOTE: overlapping use of struct ip6_msource fields at start.
+ */
+struct in6_msource {
+       RB_ENTRY(ip6_msource)   im6s_link;      /* Common field */
+       struct in6_addr         im6s_addr;      /* Common field */
+       uint8_t                 im6sl_st[2];    /* state before/at commit */
+};
+
+/*
+ * IPv6 multicast PCB-layer group filter descriptor.
+ */
+struct in6_mfilter {
+       struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
+       u_long                  im6f_nsrc;    /* # of source entries */
+       uint8_t                 im6f_st[2];   /* state before/at commit */
+};

 
 

-#ifdef __APPLE_API_PRIVATE

 /*
 /*

- * Multi-cast membership entry.  One for each group/ifp that a PCB
- * belongs to.
+ * Legacy KAME IPv6 multicast membership descriptor.

  */
 struct in6_multi_mship {
        struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
        LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
 };
 
  */
 struct in6_multi_mship {
        struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
        LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
 };
 

-struct in6_multi {
+#ifdef BSD_KERNEL_PRIVATE
+#include <netinet6/nd6_var.h>
+#include <net/if_llatbl.h>
+
+/*
+ * Per-interface IPv6 structures.
+ */
+struct in6_ifextra {
+       struct scope6_id        scope6_id;
+       struct in6_ifstat       in6_ifstat;
+       struct icmp6_ifstat     icmp6_ifstat;
+       struct nd_ifinfo        nd_ifinfo;
+       uint32_t                netsig_len;
+       u_int8_t                netsig[IFNET_SIGNATURELEN];
+       struct ipv6_prefix      nat64_prefixes[NAT64_MAX_NUM_PREFIXES];
+       struct lltable          *ii_llt;        /* NDP state */
+};
+#define IN6_IFEXTRA(_ifp)       ((struct in6_ifextra *)(_ifp->if_inet6data))
+#define        LLTABLE6(ifp)           ((IN6_IFEXTRA(ifp) == NULL) ? NULL : IN6_IFEXTRA(ifp)->ii_llt)
+#endif /* BSD_KERNEL_PRIVATE */
+
+struct mld_ifinfo;
+
+/*
+ * IPv6 group descriptor.
+ *
+ * For every entry on an ifnet's if_multiaddrs list which represents
+ * an IP multicast group, there is one of these structures.
+ *
+ * If any source filters are present, then a node will exist in the RB-tree
+ * to permit fast lookup by source whenever an operation takes place.
+ * This permits pre-order traversal when we issue reports.
+ * Source filter trees are kept separately from the socket layer to
+ * greatly simplify locking.
+ *
+ * When MLDv2 is active, in6m_timer is the response to group query timer.
+ * The state-change timer in6m_sctimer is separate; whenever state changes
+ * for the group the state change record is generated and transmitted,
+ * and kept if retransmissions are necessary.
+ *
+ * The request count here is a count of requests for this address, not a
+ * count of pointers to this structure.
+ *
+ * FUTURE: in6m_entry is now only used when groups are being purged
+ * on a detaching ifnet.  It could be demoted to a SLIST_ENTRY.
+ */
+struct in6_multi {
+       decl_lck_mtx_data(, in6m_lock);
+       u_int32_t in6m_refcount;        /* reference count */
+       u_int32_t in6m_reqcnt;          /* request count for this address */
+       u_int32_t in6m_debug;           /* see ifa_debug flags */

        LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
        struct  in6_addr in6m_addr;     /* IP6 multicast address */
        struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
        struct  ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
        LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
        struct  in6_addr in6m_addr;     /* IP6 multicast address */
        struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
        struct  ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */

-       u_int   in6m_refcount;          /* # membership claims by sockets */

        u_int   in6m_state;             /* state of the membership */
        u_int   in6m_timer;             /* MLD6 listener report timer */
        u_int   in6m_state;             /* state of the membership */
        u_int   in6m_timer;             /* MLD6 listener report timer */

+
+       /* New fields for MLDv2 follow. */
+       struct mld_ifinfo       *in6m_mli;      /* MLD info */
+       SLIST_ENTRY(in6_multi)   in6m_dtle;     /* detached waiting for rele  */
+       SLIST_ENTRY(in6_multi)   in6m_nrele;    /* to-be-released by MLD */
+       u_int32_t                in6m_nrelecnt; /* deferred release count */
+       struct ip6_msource_tree  in6m_srcs;     /* tree of sources */
+       u_long                   in6m_nsrc;     /* # of tree entries */
+
+       struct ifqueue           in6m_scq;  /* pending state-change packets */
+       struct timeval           in6m_lastgsrtv;        /* last G-S-R query */
+       uint16_t                 in6m_sctimer;  /* state-change timer */
+       uint16_t                 in6m_scrv;     /* state-change rexmit count */
+
+       /*
+        * SSM state counters which track state at T0 (the time the last
+        * state-change report's RV timer went to zero) and T1
+        * (time of pending report, i.e. now).
+        * Used for computing MLDv2 state-change reports. Several refcounts
+        * are maintained here to optimize for common use-cases.
+        */
+       struct in6m_st {
+               uint16_t        iss_fmode;      /* MLD filter mode */
+               uint16_t        iss_asm;        /* # of ASM listeners */
+               uint16_t        iss_ex;         /* # of exclusive members */
+               uint16_t        iss_in;         /* # of inclusive members */
+               uint16_t        iss_rec;        /* # of recorded sources */
+       }                       in6m_st[2];     /* state at t0, t1 */
+
+       void (*in6m_trace)              /* callback fn for tracing refs */
+           (struct in6_multi *, int);

 };
 };

-#endif /* __APPLE_API_PRIVATE */

 
 

-#ifdef KERNEL
-#ifdef __APPLE_API_PRIVATE
+#define        IN6M_LOCK_ASSERT_HELD(_in6m)                                    \
+       LCK_MTX_ASSERT(&(_in6m)->in6m_lock, LCK_MTX_ASSERT_OWNED)
+
+#define        IN6M_LOCK_ASSERT_NOTHELD(_in6m)                                 \
+       LCK_MTX_ASSERT(&(_in6m)->in6m_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define        IN6M_LOCK(_in6m)                                                \
+       lck_mtx_lock(&(_in6m)->in6m_lock)
+
+#define        IN6M_LOCK_SPIN(_in6m)                                           \
+       lck_mtx_lock_spin(&(_in6m)->in6m_lock)
+
+#define        IN6M_CONVERT_LOCK(_in6m) do {                                   \
+       IN6M_LOCK_ASSERT_HELD(_in6m);                                   \
+       lck_mtx_convert_spin(&(_in6m)->in6m_lock);                      \
+} while (0)
+
+#define        IN6M_UNLOCK(_in6m)                                              \
+       lck_mtx_unlock(&(_in6m)->in6m_lock)
+
+#define        IN6M_ADDREF(_in6m)                                              \
+       in6m_addref(_in6m, 0)
+
+#define        IN6M_ADDREF_LOCKED(_in6m)                                       \
+       in6m_addref(_in6m, 1)
+
+#define        IN6M_REMREF(_in6m)                                              \
+       in6m_remref(_in6m, 0)
+
+#define        IN6M_REMREF_LOCKED(_in6m)                                       \
+       in6m_remref(_in6m, 1)
+
+/* flags to in6_update_ifa */
+#define        IN6_IFAUPDATE_NOWAIT    0x1 /* don't block allocating memory */
+#define        IN6_IFAUPDATE_1STADDR   0x2 /* first address on interface */
+#define        IN6_IFAUPDATE_NEWADDR   0x4 /* new address on interface */
+#define        IN6_IFAUPDATE_DADDELAY  0x8 /* must delay initial DAD probe */
+
+struct ip6_moptions;
+struct sockopt;
+struct inpcb;
+

 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
 
 /*
  * Structure used by macros below to remember position when stepping through
 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
 
 /*
  * Structure used by macros below to remember position when stepping through

- * all of eht in6_multi records.
+ * all of the in6_multi records.

  */
  */

-struct in6_multistep {
-       struct  in6_ifaddr *i_ia;
-       struct  in6_multi *i_in6m;
+struct in6_multistep {
+       struct in6_ifaddr *i_ia;
+       struct in6_multi *i_in6m;

 };
 
 /*
  * Macros for looking up the in6_multi record for a given IP6 multicast
  * address on a given interface. If no matching record is found, "in6m"
 };
 
 /*
  * Macros for looking up the in6_multi record for a given IP6 multicast
  * address on a given interface. If no matching record is found, "in6m"

- * returns NLL.
- */
-
-#define IN6_LOOKUP_MULTI(addr, ifp, in6m)                      \
-/* struct in6_addr addr; */                                    \
-/* struct ifnet *ifp; */                                       \
-/* struct in6_multi *in6m; */                                  \
-do { \
-       struct ifmultiaddr *ifma; \
-       for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \
-            ifma = ifma->ifma_link.le_next) { \
-               if (ifma->ifma_addr->sa_family == AF_INET6 \
-                   && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
-                                         &(addr))) \
-                       break; \
-       } \
-       (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
-} while(0)
+ * returns NULL.
+ *
+ * We do this differently compared other BSD implementations; instead of
+ * walking the if_multiaddrs list at the interface and returning the
+ * ifma_protospec value of a matching entry, we search the global list
+ * of in6_multi records and find it that way.  Otherwise either the two
+ * structures (in6_multi, ifmultiaddr) need to be ref counted both ways,
+ * which will make things too complicated, or they need to reside in the
+ * same protected domain, which they aren't.
+ *
+ * Must be called with in6_multihead_lock held.
+ */
+#define        IN6_LOOKUP_MULTI(addr, ifp, in6m)                               \
+       /* struct in6_addr *addr; */                                    \
+       /* struct ifnet *ifp; */                                        \
+       /* struct in6_multi *in6m; */                                   \
+do {                                                                   \
+       struct in6_multistep _step;                                     \
+       IN6_FIRST_MULTI(_step, in6m);                                   \
+       while ((in6m) != NULL) {                                        \
+               IN6M_LOCK_SPIN(in6m);                                   \
+               if ((in6m)->in6m_ifp == (ifp) &&                        \
+                   IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, (addr))) {   \
+                       IN6M_ADDREF_LOCKED(in6m);                       \
+                       IN6M_UNLOCK(in6m);                              \
+                       break;                                          \
+               }                                                       \
+               IN6M_UNLOCK(in6m);                                      \
+               IN6_NEXT_MULTI(_step, in6m);                            \
+       }                                                               \
+} while (0)

 
 /*
  * Macro to step through all of the in6_multi records, one at a time.
 
 /*
  * Macro to step through all of the in6_multi records, one at a time.


@@ -599,63 +1056,122 @@ do { \
  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
  * and get the first record.  Both macros return a NULL "in6m" when there
  * are no remaining records.
  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
  * and get the first record.  Both macros return a NULL "in6m" when there
  * are no remaining records.

+ *
+ * Must be called with in6_multihead_lock held.

  */
  */

-#define IN6_NEXT_MULTI(step, in6m)                                     \
-/* struct in6_multistep step; */                                       \
-/* struct in6_multi *in6m; */                                          \
-do { \
-       if (((in6m) = (step).i_in6m) != NULL) \
-               (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
-} while(0)
-
-#define IN6_FIRST_MULTI(step, in6m)            \
-/* struct in6_multistep step; */               \
-/* struct in6_multi *in6m */                   \
-do { \
-       (step).i_in6m = in6_multihead.lh_first; \
-               IN6_NEXT_MULTI((step), (in6m)); \
-} while(0)
-
-struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
-                                    int *));
-void   in6_delmulti __P((struct in6_multi *));
-extern int in6_ifindex2scopeid __P((int));
-extern int in6_mask2len __P((struct in6_addr *, u_char *));
-extern void in6_len2mask __P((struct in6_addr *, int));
-int    in6_control __P((struct socket *,
-                        u_long, caddr_t, struct ifnet *, struct proc *));
-int    in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
-                           struct in6_ifaddr *));
-void   in6_purgeaddr __P((struct ifaddr *));
-int    in6if_do_dad __P((struct ifnet *));
-void   in6_purgeif __P((struct ifnet *));
-void   in6_savemkludge __P((struct in6_ifaddr *));
-void   in6_setmaxmtu   __P((void));
-void   in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
-void   in6_purgemkludge __P((struct ifnet *));
-struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
-struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *,
-                                            struct in6_addr *));
-char   *ip6_sprintf __P((const struct in6_addr *));
-int    in6_addr2scopeid __P((struct ifnet *, struct in6_addr *));
-int    in6_matchlen __P((struct in6_addr *, struct in6_addr *));
-int    in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2,
-                                 int len));
-void   in6_prefixlen2mask __P((struct in6_addr *maskp, int len));
-int    in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data,
-                             struct ifnet *ifp));
-int    in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia));
-void   in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia));
-void   in6_purgeprefix __P((struct ifnet *));
-
-int    in6_is_addr_deprecated __P((struct sockaddr_in6 *));
-struct inpcb;
-int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
-       struct inpcb *, struct ifnet **));
-int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
-       struct ifnet *));
-void in6_clearscope __P((struct in6_addr *));
-#endif /* __APPLE_API_PRIVATE */
-#endif /* KERNEL */
+#define        IN6_NEXT_MULTI(step, in6m)                                      \
+       /* struct in6_multistep step; */                                \
+       /* struct in6_multi *in6m; */                                   \
+do {                                                                   \
+       in6_multihead_lock_assert(LCK_RW_ASSERT_HELD);                  \
+       if (((in6m) = (step).i_in6m) != NULL)                           \
+               (step).i_in6m = (step).i_in6m->in6m_entry.le_next;      \
+} while (0)
+
+#define        IN6_FIRST_MULTI(step, in6m)                                     \
+       /* struct in6_multistep step; */                                \
+       /* struct in6_multi *in6m */                                    \
+do {                                                                   \
+       in6_multihead_lock_assert(LCK_RW_ASSERT_HELD);                  \
+       (step).i_in6m = in6_multihead.lh_first;                         \
+               IN6_NEXT_MULTI((step), (in6m));                         \
+} while (0)

 
 

+extern lck_mtx_t *inet6_domain_mutex;
+extern struct domain *inet6domain;
+
+struct ip6_pktopts;
+
+/* Multicast private KPIs. */
+extern int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
+    const struct sockaddr_in6 *, const struct sockaddr_in6 *);
+extern int in6_mc_join(struct ifnet *, const struct in6_addr *,
+    struct in6_mfilter *, struct in6_multi **, int);
+extern int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
+extern void in6m_clear_recorded(struct in6_multi *);
+extern void in6m_commit(struct in6_multi *);
+extern void in6m_purge(struct in6_multi *);
+extern void in6m_print(const struct in6_multi *);
+extern int in6m_record_source(struct in6_multi *, const struct in6_addr *);
+extern int ip6_getmoptions(struct inpcb *, struct sockopt *);
+extern int ip6_setmoptions(struct inpcb *, struct sockopt *);
+/* Legacy KAME multicast private KPIs. */
+extern struct in6_multi_mship *in6_joingroup(struct ifnet *,
+    struct in6_addr *, int *, int);
+extern int in6_leavegroup(struct in6_multi_mship *);
+extern void in6_multi_init(void);
+extern void in6m_addref(struct in6_multi *, int);
+extern void in6m_remref(struct in6_multi *, int);
+extern int in6_multi_detach(struct in6_multi *);
+extern int in6_ifindex2scopeid(int);
+extern int in6_mask2len(struct in6_addr *, u_char *);
+extern void in6_len2mask(struct in6_addr *, int);
+extern int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
+    struct proc *);
+extern int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int,
+    struct in6_ifaddr **);
+extern void in6_purgeaddr(struct ifaddr *);
+extern int in6if_do_dad(struct ifnet *);
+extern void in6_purgeif(struct ifnet *);
+extern void in6_savemkludge(struct in6_ifaddr *);
+extern void in6_setmaxmtu(void);
+extern void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
+extern void in6_purgemkludge(struct ifnet *);
+extern struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
+extern struct in6_ifaddr *in6ifa_ifpwithflag(struct ifnet *, int);
+extern struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
+extern struct in6_ifaddr *in6ifa_prproxyaddr(struct in6_addr *);
+extern void in6ifa_getlifetime(struct in6_ifaddr *,
+    struct in6_addrlifetime *, int);
+extern void in6ifa_setlifetime(struct in6_ifaddr *, struct in6_addrlifetime *);
+extern char *ip6_sprintf(const struct in6_addr *);
+extern int in6_addr2scopeid(struct ifnet *, struct in6_addr *);
+extern int in6_matchlen(struct in6_addr *, struct in6_addr *);
+extern int in6_are_prefix_equal(struct in6_addr *p1, struct in6_addr *p2,
+    int len);
+extern void in6_prefixlen2mask(struct in6_addr *maskp, int len);
+extern int in6_prefix_add_ifid(int iilen, struct in6_ifaddr *ia);
+extern void in6_prefix_remove_ifid(int iilen, struct in6_ifaddr *ia);
+extern void in6_purgeprefix(struct ifnet *);
+extern void in6_purgeaddrs(struct ifnet *);
+extern uint8_t im6s_get_mode(const struct in6_multi *,
+    const struct ip6_msource *, uint8_t);
+extern void im6f_leave(struct in6_mfilter *);
+extern void im6f_purge(struct in6_mfilter *);
+extern int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *,
+    struct inpcb *, struct ifnet **, struct ip6_pktopts *);
+extern int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *,
+    struct ifnet *);
+extern void in6_aliasreq_64_to_32(struct in6_aliasreq_64 *,
+    struct in6_aliasreq_32 *);
+extern void in6_aliasreq_32_to_64(struct in6_aliasreq_32 *,
+    struct in6_aliasreq_64 *);
+extern void in6_ifaddr_init(void);
+extern int in6_inithead(void **, int);
+extern void in6_rtqdrain(void);
+extern struct radix_node *in6_validate(struct radix_node *);
+extern int  in6_if2idlen(struct ifnet *);
+extern int in6_src_ioctl(u_long, caddr_t);
+extern void in6_multihead_lock_exclusive(void);
+extern void in6_multihead_lock_shared(void);
+extern void in6_multihead_lock_assert(int);
+extern void in6_multihead_lock_done(void);
+
+extern void in6_cga_init(void);
+extern void in6_cga_node_lock(void);
+extern void in6_cga_node_unlock(void);
+extern void in6_cga_query(struct in6_cga_nodecfg *);
+extern int in6_cga_start(const struct in6_cga_nodecfg *);
+extern int in6_cga_stop(void);
+extern ssize_t in6_cga_parameters_prepare(void *, size_t,
+    const struct in6_addr *, u_int8_t, const struct in6_cga_modifier *);
+extern int in6_cga_generate(struct in6_cga_prepare *, u_int8_t,
+    struct in6_addr *);
+extern int in6_getconninfo(struct socket *, sae_connid_t, uint32_t *,
+    uint32_t *, int32_t *, user_addr_t, socklen_t *,
+    user_addr_t, socklen_t *, uint32_t *, user_addr_t, uint32_t *);
+extern void in6_ip6_to_sockaddr(const struct in6_addr *ip6, u_int16_t port,
+                                                               struct sockaddr_in6 *sin6, u_int32_t maxlen);
+
+#endif /* BSD_KERNEL_PRIVATE */

 #endif /* _NETINET6_IN6_VAR_H_ */
 #endif /* _NETINET6_IN6_VAR_H_ */