xnu-3789.51.2.tar.gz

[apple/xnu.git] / bsd / netinet6 / ip6_var.h

diff --git a/bsd/netinet6/ip6_var.h b/bsd/netinet6/ip6_var.h
index 9507c904b6ee5813592b27aac4dfd271a3a3543e..e04dee46a1d065ab0b5f1fe3c46323cba4c5b724 100644 (file)
--- a/bsd/netinet6/ip6_var.h
+++ b/bsd/netinet6/ip6_var.h
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.
  * 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,
  * 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,


@@ -22,13 +22,10 @@
  * 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.
  * 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@
  */
 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 

-/*     $FreeBSD: src/sys/netinet6/ip6_var.h,v 1.2.2.2 2001/07/03 11:01:54 ume Exp $    */
-/*     $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $        */
-

 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.


@@ -94,10 +91,12 @@
  */
 
 #ifndef _NETINET6_IP6_VAR_H_
  */
 
 #ifndef _NETINET6_IP6_VAR_H_

-#define _NETINET6_IP6_VAR_H_
+#define        _NETINET6_IP6_VAR_H_

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

-#ifdef XNU_KERNEL_PRIVATE
+#ifdef BSD_KERNEL_PRIVATE
+#include <net/ethernet.h>
+

 /*
  * IP6 reassembly queue structure.  Each fragment
  * being reassembled is attached to one of these structures.
 /*
  * IP6 reassembly queue structure.  Each fragment
  * being reassembled is attached to one of these structures.


@@ -113,10 +112,12 @@ struct    ip6q {
        struct ip6q     *ip6q_next;
        struct ip6q     *ip6q_prev;
        int             ip6q_unfrglen;  /* len of unfragmentable part */
        struct ip6q     *ip6q_next;
        struct ip6q     *ip6q_prev;
        int             ip6q_unfrglen;  /* len of unfragmentable part */

-#if notyet
+#ifdef notyet

        u_char  *ip6q_nxtp;
 #endif
        int             ip6q_nfrag;     /* # of fragments */
        u_char  *ip6q_nxtp;
 #endif
        int             ip6q_nfrag;     /* # of fragments */

+       uint32_t        ip6q_csum_flags; /* checksum flags */
+       uint32_t        ip6q_csum;      /* partial checksum value */

 };
 
 struct ip6asfrag {
 };
 
 struct ip6asfrag {


@@ -129,7 +130,7 @@ struct      ip6asfrag {
        u_int16_t       ip6af_mff;      /* more fragment bit in frag off */
 };
 
        u_int16_t       ip6af_mff;      /* more fragment bit in frag off */
 };
 

-#define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m))
+#define        IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m))

 
 struct ip6_moptions {
        decl_lck_mtx_data(, im6o_lock);
 
 struct ip6_moptions {
        decl_lck_mtx_data(, im6o_lock);


@@ -181,6 +182,7 @@ struct ip6_exthdrs {
        struct mbuf *ip6e_dest1;
        struct mbuf *ip6e_rthdr;
        struct mbuf *ip6e_dest2;
        struct mbuf *ip6e_dest1;
        struct mbuf *ip6e_rthdr;
        struct mbuf *ip6e_dest2;

+       boolean_t merged;

 };
 
 /*
 };
 
 /*


@@ -192,16 +194,16 @@ struct    ip6po_rhinfo {
        struct  ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */
        struct  route_in6 ip6po_rhi_route; /* Route to the 1st hop */
 };
        struct  ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */
        struct  route_in6 ip6po_rhi_route; /* Route to the 1st hop */
 };

-#define ip6po_rthdr    ip6po_rhinfo.ip6po_rhi_rthdr
-#define ip6po_route    ip6po_rhinfo.ip6po_rhi_route
+#define        ip6po_rthdr     ip6po_rhinfo.ip6po_rhi_rthdr
+#define        ip6po_route     ip6po_rhinfo.ip6po_rhi_route

 
 /* Nexthop related info */
 struct ip6po_nhinfo {
        struct  sockaddr *ip6po_nhi_nexthop;
        struct  route_in6 ip6po_nhi_route; /* Route to the nexthop */
 };
 
 /* Nexthop related info */
 struct ip6po_nhinfo {
        struct  sockaddr *ip6po_nhi_nexthop;
        struct  route_in6 ip6po_nhi_route; /* Route to the nexthop */
 };

-#define ip6po_nexthop  ip6po_nhinfo.ip6po_nhi_nexthop
-#define ip6po_nextroute        ip6po_nhinfo.ip6po_nhi_route
+#define        ip6po_nexthop   ip6po_nhinfo.ip6po_nhi_nexthop
+#define        ip6po_nextroute ip6po_nhinfo.ip6po_nhi_route

 
 struct ip6_pktopts {
        struct  mbuf *ip6po_m;  /* Pointer to mbuf storing the data */
 
 struct ip6_pktopts {
        struct  mbuf *ip6po_m;  /* Pointer to mbuf storing the data */


@@ -227,29 +229,33 @@ struct    ip6_pktopts {
        int     ip6po_tclass;   /* traffic class */
 
        int     ip6po_minmtu;  /* fragment vs PMTU discovery policy */
        int     ip6po_tclass;   /* traffic class */
 
        int     ip6po_minmtu;  /* fragment vs PMTU discovery policy */

-#define IP6PO_MINMTU_MCASTONLY -1 /* default; send at min MTU for multicast*/
-#define IP6PO_MINMTU_DISABLE    0 /* always perform pmtu disc */
-#define IP6PO_MINMTU_ALL        1 /* always send at min MTU */
+#define        IP6PO_MINMTU_MCASTONLY  -1 /* default; send at min MTU for multicast */
+#define        IP6PO_MINMTU_DISABLE     0 /* always perform pmtu disc */
+#define        IP6PO_MINMTU_ALL         1 /* always send at min MTU */
+
+       /* whether temporary addresses are preferred as source address */
+       int     ip6po_prefer_tempaddr;

 
 

-       int     ip6po_prefer_tempaddr;  /* whether temporary addresses are
-                                          preferred as source address */
-#define IP6PO_TEMPADDR_SYSTEM  -1 /* follow the system default */
-#define IP6PO_TEMPADDR_NOTPREFER 0 /* not prefer temporary address */
-#define IP6PO_TEMPADDR_PREFER   1 /* prefer temporary address */
+#define        IP6PO_TEMPADDR_SYSTEM   -1 /* follow the system default */
+#define        IP6PO_TEMPADDR_NOTPREFER 0 /* not prefer temporary address */
+#define        IP6PO_TEMPADDR_PREFER    1 /* prefer temporary address */

 
        int ip6po_flags;
 #if 0  /* parameters in this block is obsolete. do not reuse the values. */
 
        int ip6po_flags;
 #if 0  /* parameters in this block is obsolete. do not reuse the values. */

-#define IP6PO_REACHCONF        0x01    /* upper-layer reachability confirmation. */
-#define IP6PO_MINMTU   0x02    /* use minimum MTU (IPV6_USE_MIN_MTU) */
+#define        IP6PO_REACHCONF 0x01    /* upper-layer reachability confirmation. */
+#define        IP6PO_MINMTU    0x02    /* use minimum MTU (IPV6_USE_MIN_MTU) */

 #endif
 #endif

-#define IP6PO_DONTFRAG 0x04    /* disable fragmentation (IPV6_DONTFRAG) */
-#define IP6PO_USECOA   0x08    /* use care of address */
+#define        IP6PO_DONTFRAG          0x04    /* no fragmentation (IPV6_DONTFRAG) */
+#define        IP6PO_USECOA            0x08    /* use care of address */

 };
 
 /*
  * Control options for incoming packets
  */
 };
 
 /*
  * Control options for incoming packets
  */

-#endif /* XNU_KERNEL_PRIVATE */
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        IP6S_SRCRULE_COUNT 16
+#include <netinet6/scope6_var.h>

 
 struct ip6stat {
        u_quad_t ip6s_total;            /* total packets received */
 
 struct ip6stat {
        u_quad_t ip6s_total;            /* total packets received */


@@ -262,10 +268,11 @@ struct    ip6stat {
        u_quad_t ip6s_forward;          /* packets forwarded */
        u_quad_t ip6s_cantforward;      /* packets rcvd for unreachable dest */
        u_quad_t ip6s_redirectsent;     /* packets forwarded on same net */
        u_quad_t ip6s_forward;          /* packets forwarded */
        u_quad_t ip6s_cantforward;      /* packets rcvd for unreachable dest */
        u_quad_t ip6s_redirectsent;     /* packets forwarded on same net */

-       u_quad_t ip6s_delivered;        /* datagrams delivered to upper level*/
+       u_quad_t ip6s_delivered;        /* datagrams delivered to upper level */

        u_quad_t ip6s_localout;         /* total ip packets generated here */
        u_quad_t ip6s_odropped;         /* lost packets due to nobufs, etc. */
        u_quad_t ip6s_reassembled;      /* total packets reassembled ok */
        u_quad_t ip6s_localout;         /* total ip packets generated here */
        u_quad_t ip6s_odropped;         /* lost packets due to nobufs, etc. */
        u_quad_t ip6s_reassembled;      /* total packets reassembled ok */

+       u_quad_t ip6s_atmfrag_rcvd;     /* atomic fragments received */

        u_quad_t ip6s_fragmented;       /* datagrams successfully fragmented */
        u_quad_t ip6s_ofragments;       /* output fragments created */
        u_quad_t ip6s_cantfrag;         /* don't fragment flag was set, etc. */
        u_quad_t ip6s_fragmented;       /* datagrams successfully fragmented */
        u_quad_t ip6s_ofragments;       /* output fragments created */
        u_quad_t ip6s_cantfrag;         /* don't fragment flag was set, etc. */


@@ -287,66 +294,84 @@ struct    ip6stat {
        /*
         * statistics for improvement of the source address selection
         * algorithm:
        /*
         * statistics for improvement of the source address selection
         * algorithm:

-        * XXX: hardcoded 16 = # of ip6 multicast scope types + 1

         */
        /* number of times that address selection fails */
        u_quad_t ip6s_sources_none;
        /* number of times that an address on the outgoing I/F is chosen */
         */
        /* number of times that address selection fails */
        u_quad_t ip6s_sources_none;
        /* number of times that an address on the outgoing I/F is chosen */

-       u_quad_t ip6s_sources_sameif[16];
+       u_quad_t ip6s_sources_sameif[SCOPE6_ID_MAX];

        /* number of times that an address on a non-outgoing I/F is chosen */
        /* number of times that an address on a non-outgoing I/F is chosen */

-       u_quad_t ip6s_sources_otherif[16];
+       u_quad_t ip6s_sources_otherif[SCOPE6_ID_MAX];

        /*
         * number of times that an address that has the same scope
         * from the destination is chosen.
         */
        /*
         * number of times that an address that has the same scope
         * from the destination is chosen.
         */

-       u_quad_t ip6s_sources_samescope[16];
+       u_quad_t ip6s_sources_samescope[SCOPE6_ID_MAX];

        /*
         * number of times that an address that has a different scope
         * from the destination is chosen.
         */
        /*
         * number of times that an address that has a different scope
         * from the destination is chosen.
         */

-       u_quad_t ip6s_sources_otherscope[16];
+       u_quad_t ip6s_sources_otherscope[SCOPE6_ID_MAX];

        /* number of times that a deprecated address is chosen */
        /* number of times that a deprecated address is chosen */

-       u_quad_t ip6s_sources_deprecated[16];
+       u_quad_t ip6s_sources_deprecated[SCOPE6_ID_MAX];

 
        u_quad_t ip6s_forward_cachehit;
        u_quad_t ip6s_forward_cachemiss;
 
        /* number of times that each rule of source selection is applied. */
 
        u_quad_t ip6s_forward_cachehit;
        u_quad_t ip6s_forward_cachemiss;
 
        /* number of times that each rule of source selection is applied. */

-       u_quad_t ip6s_sources_rule[16];
-#ifdef PRIVATE
-       u_quad_t ip6s_pktdropcntrl;     /* pkt dropped, no mbufs for control data */
-#endif /* PRIVATE */
+       u_quad_t ip6s_sources_rule[IP6S_SRCRULE_COUNT];
+
+       /* number of times we ignored address on expensive secondary interfaces */
+       u_quad_t ip6s_sources_skip_expensive_secondary_if;
+
+       /* pkt dropped, no mbufs for control data */
+       u_quad_t ip6s_pktdropcntrl;
+
+       /* total packets trimmed/adjusted  */
+       u_quad_t ip6s_adj;
+       /* hwcksum info discarded during adjustment */
+       u_quad_t ip6s_adj_hwcsum_clr;
+
+       /* duplicate address detection collisions */
+       u_quad_t ip6s_dad_collide;
+
+       /* DAD NS looped back */
+       u_quad_t ip6s_dad_loopcount;
+};
+
+enum ip6s_sources_rule_index {
+       IP6S_SRCRULE_0, IP6S_SRCRULE_1, IP6S_SRCRULE_2, IP6S_SRCRULE_3, IP6S_SRCRULE_4,
+       IP6S_SRCRULE_5, IP6S_SRCRULE_5_5, IP6S_SRCRULE_6, IP6S_SRCRULE_7,
+       IP6S_SRCRULE_7x, IP6S_SRCRULE_8

 };
 
 };
 

-#ifdef KERNEL_PRIVATE
-#ifdef KERNEL
+#ifdef BSD_KERNEL_PRIVATE

 /*
  * IPv6 onion peeling state.
 /*
  * IPv6 onion peeling state.

- * it will be initialized when we come into ip6_input().
- * XXX do not make it a kitchen sink!
+ *
+ * This is currently allocated for packets destined to the all-nodes
+ * multicast address over Ethernet.  IPv6 destination address information
+ * is now stored in the mbuf itself.

  */
 struct ip6aux {
        u_int32_t ip6a_flags;
  */
 struct ip6aux {
        u_int32_t ip6a_flags;

-#define IP6A_SWAP      0x01            /* swapped home/care-of on packet */
-#define IP6A_HASEEN    0x02            /* HA was present */
-#define IP6A_BRUID     0x04            /* BR Unique Identifier was present */
-#define IP6A_RTALERTSEEN 0x08          /* rtalert present */
+#define        IP6A_HASEEN     0x01            /* HA was present */
+
+#ifdef notyet
+#define        IP6A_SWAP       0x02            /* swapped home/care-of on packet */
+#define        IP6A_BRUID      0x04            /* BR Unique Identifier was present */
+#define        IP6A_RTALERTSEEN 0x08           /* rtalert present */

 
        /* ip6.ip6_src */
        struct in6_addr ip6a_careof;    /* care-of address of the peer */
        struct in6_addr ip6a_home;      /* home address of the peer */
        u_int16_t       ip6a_bruid;     /* BR unique identifier */
 
 
        /* ip6.ip6_src */
        struct in6_addr ip6a_careof;    /* care-of address of the peer */
        struct in6_addr ip6a_home;      /* home address of the peer */
        u_int16_t       ip6a_bruid;     /* BR unique identifier */
 

-       /* ip6.ip6_dst */
-       struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */
-

        /* rtalert */
        u_int16_t ip6a_rtalert;         /* rtalert option value */
        /* rtalert */
        u_int16_t ip6a_rtalert;         /* rtalert option value */

+#endif /* notyet */

 
 

-       /*
-        * decapsulation history will be here.
-        * with IPsec it may not be accurate.
-        */
+       /* ether source address if all-nodes multicast destination */
+       u_char ip6a_ehsrc[ETHER_ADDR_LEN];

 };
 
 /* flags passed to ip6_output as last parameter */
 };
 
 /* flags passed to ip6_output as last parameter */


@@ -356,8 +381,8 @@ struct ip6aux {
 #define        IPV6_FLAG_NOSRCIFSEL    0x80    /* bypas source address selection */
 #define        IPV6_OUTARGS            0x100   /* has ancillary output info */
 
 #define        IPV6_FLAG_NOSRCIFSEL    0x80    /* bypas source address selection */
 #define        IPV6_OUTARGS            0x100   /* has ancillary output info */
 

-#ifdef XNU_KERNEL_PRIVATE
-#define IP6_HDR_ALIGNED_P(_ip6)        ((((uintptr_t)(_ip6)) & ((uintptr_t)3)) == 0)
+#ifdef BSD_KERNEL_PRIVATE
+#define        IP6_HDR_ALIGNED_P(_ip6) ((((uintptr_t)(_ip6)) & ((uintptr_t)3)) == 0)

 
 /*
  * On platforms which require strict alignment (currently for anything but
 
 /*
  * On platforms which require strict alignment (currently for anything but


@@ -374,7 +399,7 @@ struct ip6aux {
        }                                                               \
 } while (0)
 #endif /* !__i386__ && !__x86_64__ */
        }                                                               \
 } while (0)
 #endif /* !__i386__ && !__x86_64__ */

-#endif /* XNU_KERNEL_PRIVATE */
+#endif /* BSD_KERNEL_PRIVATE */

 
 #include <net/flowadv.h>
 
 
 #include <net/flowadv.h>
 


@@ -389,141 +414,141 @@ struct ip6_out_args {
 #define        IP6OAF_BOUND_IF         0x00000002      /* boundif value is valid */
 #define        IP6OAF_BOUND_SRCADDR    0x00000004      /* bound to src address */
 #define        IP6OAF_NO_CELLULAR      0x00000010      /* skip IFT_CELLULAR */
 #define        IP6OAF_BOUND_IF         0x00000002      /* boundif value is valid */
 #define        IP6OAF_BOUND_SRCADDR    0x00000004      /* bound to src address */
 #define        IP6OAF_NO_CELLULAR      0x00000010      /* skip IFT_CELLULAR */

+#define        IP6OAF_NO_EXPENSIVE     0x00000020      /* skip IFEF_EXPENSIVE */
+#define        IP6OAF_AWDL_UNRESTRICTED 0x00000040     /* privileged AWDL */
+#define        IP6OAF_QOSMARKING_ALLOWED 0x00000080    /* policy allows Fastlane DSCP marking */
+#define IP6OAF_INTCOPROC_ALLOWED 0x00000100    /* access to internal coproc interfaces */
+       u_int32_t       ip6oa_retflags; /* IP6OARF return flags (see below) */
+#define        IP6OARF_IFDENIED        0x00000001      /* denied access to interface */
+       int             ip6oa_sotc;             /* traffic class for Fastlane DSCP mapping */
+       int             ip6oa_netsvctype;

 };
 
 };
 

-extern struct  ip6stat ip6stat;        /* statistics */
-extern u_int32_t ip6_id;               /* fragment identifier */
-extern int     ip6_defhlim;            /* default hop limit */
-extern int     ip6_defmcasthlim;       /* default multicast hop limit */
-extern int     ip6_forwarding;         /* act as router? */
-extern int     ip6_forward_srcrt;      /* forward src-routed? */
-extern int     ip6_gif_hlim;           /* Hop limit for gif encap packet */
-extern int     ip6_use_deprecated;     /* allow deprecated addr as source */
-extern int     ip6_rr_prune;           /* router renumbering prefix
-                                        * walk list every 5 sec.    */
-extern int     ip6_mcast_pmtu;         /* enable pMTU discovery for multicast? */
-#define ip6_mapped_addr_on      (!ip6_v6only)
-extern int     ip6_v6only;
-
-extern int     ip6_neighborgcthresh;   /* Threshold # of NDP entries for GC */
-extern int     ip6_maxifprefixes;      /* Max acceptable prefixes via RA per IF */
-extern int     ip6_maxifdefrouters;    /* Max acceptable def routers via RA */
-extern int     ip6_maxdynroutes;       /* Max # of routes created via redirect */
-#if MROUTING
-extern struct socket *ip6_mrouter;     /* multicast routing daemon */
-#endif
-extern int     ip6_sendredirects;      /* send IP redirects when forwarding? */
-extern int     ip6_maxfragpackets; /* Maximum packets in reassembly queue */
-extern int     ip6_maxfrags;   /* Maximum fragments in reassembly queue */
-extern int     ip6_sourcecheck;        /* Verify source interface */
-extern int     ip6_sourcecheck_interval; /* Interval between log messages */
-extern int     ip6_accept_rtadv;       /* deprecated */
-extern int     ip6_log_interval;
-extern time_t  ip6_log_time;
-extern int     ip6_hdrnestlimit; /* upper limit of # of extension headers */
-extern int     ip6_dad_count;          /* DupAddrDetectionTransmits */
-extern int     ip6_only_allow_rfc4193_prefix;  /* RFC4193 Unique Local Unicast Prefixes only */
-
-extern u_int32_t ip6_flow_seq;
+extern struct ip6stat ip6stat; /* statistics */
+extern int ip6_defhlim;                /* default hop limit */
+extern int ip6_defmcasthlim;   /* default multicast hop limit */
+extern int ip6_forwarding;     /* act as router? */
+extern int ip6_gif_hlim;       /* Hop limit for gif encap packet */
+extern int ip6_use_deprecated; /* allow deprecated addr as source */
+extern int ip6_rr_prune;       /* router renumbering prefix */
+                               /*   walk list every 5 sec. */
+extern int ip6_mcast_pmtu;     /* enable pMTU discovery for multicast? */
+#define        ip6_mapped_addr_on      (!ip6_v6only)
+extern int ip6_v6only;
+
+extern int ip6_neighborgcthresh; /* Threshold # of NDP entries for GC */
+extern int ip6_maxifprefixes;  /* Max acceptable prefixes via RA per IF */
+extern int ip6_maxifdefrouters;        /* Max acceptable def routers via RA */
+extern int ip6_maxdynroutes;   /* Max # of routes created via redirect */
+extern int ip6_sendredirects;  /* send IP redirects when forwarding? */
+extern int ip6_accept_rtadv;   /* deprecated */
+extern int ip6_log_interval;
+extern uint64_t ip6_log_time;
+extern int ip6_hdrnestlimit;   /* upper limit of # of extension headers */
+extern int ip6_dad_count;      /* DupAddrDetectionTransmits */
+
+/* RFC4193 Unique Local Unicast Prefixes only */
+extern int ip6_only_allow_rfc4193_prefix;
+

 extern int ip6_auto_flowlabel;
 extern int ip6_auto_linklocal;
 
 extern int ip6_auto_flowlabel;
 extern int ip6_auto_linklocal;
 

-extern int   ip6_anonportmin;          /* minimum ephemeral port */
-extern int   ip6_anonportmax;          /* maximum ephemeral port */
-extern int   ip6_lowportmin;           /* minimum reserved port */
-extern int   ip6_lowportmax;           /* maximum reserved port */
+extern int ip6_anonportmin;            /* minimum ephemeral port */
+extern int ip6_anonportmax;            /* maximum ephemeral port */
+extern int ip6_lowportmin;             /* minimum reserved port */
+extern int ip6_lowportmax;             /* maximum reserved port */

 
 

-extern int     ip6_use_tempaddr; /* whether to use temporary addresses. */
-extern int     ip6_prefer_tempaddr; /* whether to prefer temporary addresses
-                                       in the source address selection */
-extern int     ip6_use_defzone; /* whether to use the default scope zone
-                                   when unspecified */
+extern int ip6_use_tempaddr; /* whether to use temporary addresses. */

 
 

-extern struct  pr_usrreqs rip6_usrreqs;
-extern struct   pr_usrreqs icmp6_dgram_usrreqs;
+/* whether to prefer temporary addresses in the source address selection */
+extern int ip6_prefer_tempaddr;

 
 

-extern int     ip6_doscopedroute;
-extern int     ip6_restrictrecvif;
+/* whether to use the default scope zone when unspecified */
+extern int ip6_use_defzone;

 
 

-struct sockopt;
+extern struct pr_usrreqs rip6_usrreqs;
+extern struct pr_usrreqs icmp6_dgram_usrreqs;

 
 

+struct sockopt;

 struct inpcb;
 struct inpcb;

-
-int    icmp6_ctloutput(struct socket *, struct sockopt *);
-int    icmp6_dgram_ctloutput(struct socket *, struct sockopt *);
-int    icmp6_dgram_send(struct socket *, int , struct mbuf *, struct sockaddr *, struct mbuf *, struct proc *);
-int    icmp6_dgram_attach(struct socket *, int , struct proc *);
-
-

 struct in6_ifaddr;
 struct in6_ifaddr;

-void   ip6_init(void);
-void   ip6_input(struct mbuf *);
-struct in6_ifaddr *ip6_getdstifaddr(struct mbuf *);
-void   ip6_freepcbopts(struct ip6_pktopts *);
-int    ip6_unknown_opt(u_int8_t *, struct mbuf *, int);
-char * ip6_get_prevhdr(struct mbuf *, int);
-int    ip6_nexthdr(struct mbuf *, int, int, int *);
-int    ip6_lasthdr(struct mbuf *, int, int, int *);
+struct ip6protosw;
+struct domain;
+
+extern int icmp6_ctloutput(struct socket *, struct sockopt *);
+extern int icmp6_dgram_ctloutput(struct socket *, struct sockopt *);
+extern int icmp6_dgram_send(struct socket *, int, struct mbuf *,
+    struct sockaddr *, struct mbuf *, struct proc *);
+extern int icmp6_dgram_attach(struct socket *, int, struct proc *);
+
+extern void ip6_init(struct ip6protosw *, struct domain *);
+extern void ip6_input(struct mbuf *);
+extern void ip6_setsrcifaddr_info(struct mbuf *, uint32_t, struct in6_ifaddr *);
+extern void ip6_setdstifaddr_info(struct mbuf *, uint32_t, struct in6_ifaddr *);
+extern int ip6_getsrcifaddr_info(struct mbuf *, uint32_t *, uint32_t *);
+extern int ip6_getdstifaddr_info(struct mbuf *, uint32_t *, uint32_t *);
+extern void ip6_freepcbopts(struct ip6_pktopts *);
+extern int ip6_unknown_opt(u_int8_t *, struct mbuf *, int);
+extern char *ip6_get_prevhdr(struct mbuf *, int);
+extern int ip6_nexthdr(struct mbuf *, int, int, int *);
+extern int ip6_lasthdr(struct mbuf *, int, int, int *);

 
 extern void ip6_moptions_init(void);
 extern struct ip6_moptions *ip6_allocmoptions(int);
 extern void im6o_addref(struct ip6_moptions *, int);
 extern void im6o_remref(struct ip6_moptions *);
 
 
 extern void ip6_moptions_init(void);
 extern struct ip6_moptions *ip6_allocmoptions(int);
 extern void im6o_addref(struct ip6_moptions *, int);
 extern void im6o_remref(struct ip6_moptions *);
 

-struct ip6aux *ip6_addaux(struct mbuf *);
-struct ip6aux *ip6_findaux(struct mbuf *);
-void   ip6_delaux(struct mbuf *);
-extern void ip6_destroyaux(struct ip6aux *);
-extern void ip6_copyaux(struct ip6aux *, struct ip6aux *);
-
-int    ip6_mforward(struct ip6_hdr *, struct ifnet *, struct mbuf *);
-int    ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *,
-                                u_int32_t *);
-struct mbuf    **ip6_savecontrol_v4(struct inpcb *, struct mbuf *,
-           struct mbuf **, int *);
-int    ip6_savecontrol(struct inpcb *, struct mbuf *, struct mbuf **);
-struct mbuf *ip6_forward(struct mbuf *, struct route_in6 *, int);
-void   ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *,
-                            u_int32_t *));
-void   ip6_mloopback(struct ifnet *, struct mbuf *, struct sockaddr_in6 *);
-int    ip6_output(struct mbuf *, struct ip6_pktopts *, struct route_in6 *,
-           int, struct ip6_moptions *, struct ifnet **, struct ip6_out_args *);
-int    ip6_output_list(struct mbuf *, int, struct ip6_pktopts *,
-           struct route_in6 *, int, struct ip6_moptions *, struct ifnet **,
-           struct ip6_out_args *);
-int    ip6_ctloutput(struct socket *, struct sockopt *sopt);
-void   ip6_initpktopts(struct ip6_pktopts *);
-int    ip6_setpktoptions(struct mbuf *, struct ip6_pktopts *, int, int);
-void   ip6_clearpktopts(struct ip6_pktopts *, int);
-struct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int);
-int    ip6_optlen(struct inpcb *);
-
-int    route6_input(struct mbuf **, int *, int);
-
-void   frag6_init(void);
-int    frag6_input(struct mbuf **, int *, int);
-void   frag6_slowtimo(void);
-void   frag6_drain(void);
-
-int    rip6_input(struct mbuf **, int *, int);
-void   rip6_ctlinput(int, struct sockaddr *, void *);
-int    rip6_ctloutput(struct socket *so, struct sockopt *sopt);
-int    rip6_output(struct mbuf *, struct socket *, struct sockaddr_in6 *, struct mbuf *, int);
-
-int    dest6_input(struct mbuf **, int *, int);
+extern struct ip6aux *ip6_addaux(struct mbuf *);
+extern struct ip6aux *ip6_findaux(struct mbuf *);
+extern void ip6_delaux(struct mbuf *);
+
+extern int ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *,
+    u_int32_t *);
+extern struct mbuf **ip6_savecontrol_v4(struct inpcb *, struct mbuf *,
+    struct mbuf **, int *);
+extern int ip6_savecontrol(struct inpcb *, struct mbuf *, struct mbuf **);
+extern struct mbuf *ip6_forward(struct mbuf *, struct route_in6 *, int);
+extern void ip6_notify_pmtu(struct inpcb *, struct sockaddr_in6 *, u_int32_t *);
+extern void ip6_mloopback(struct ifnet *, struct ifnet *, struct mbuf *,
+    struct sockaddr_in6 *, uint32_t, int32_t);
+extern int ip6_output(struct mbuf *, struct ip6_pktopts *, struct route_in6 *,
+    int, struct ip6_moptions *, struct ifnet **, struct ip6_out_args *);
+extern int ip6_output_list(struct mbuf *, int, struct ip6_pktopts *,
+    struct route_in6 *, int, struct ip6_moptions *, struct ifnet **,
+    struct ip6_out_args *);
+extern int ip6_ctloutput(struct socket *, struct sockopt *);
+extern int ip6_raw_ctloutput(struct socket *, struct sockopt *);
+extern void ip6_initpktopts(struct ip6_pktopts *);
+extern int ip6_setpktoptions(struct mbuf *, struct ip6_pktopts *, int, int);
+extern void ip6_clearpktopts(struct ip6_pktopts *, int);
+extern struct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int);
+extern int ip6_optlen(struct inpcb *);
+extern void ip6_drain(void);
+
+extern int route6_input(struct mbuf **, int *, int);
+
+extern void frag6_init(void);
+extern int frag6_input(struct mbuf **, int *, int);
+extern void frag6_drain(void);
+
+extern int rip6_input(struct mbuf **, int *, int);
+extern void rip6_ctlinput(int, struct sockaddr *, void *);
+extern int rip6_ctloutput(struct socket *so, struct sockopt *sopt);
+extern int rip6_output(struct mbuf *, struct socket *, struct sockaddr_in6 *,
+    struct mbuf *, int);
+
+extern int dest6_input(struct mbuf **, int *, int);

 extern struct in6_addr *in6_selectsrc(struct sockaddr_in6 *,
 extern struct in6_addr *in6_selectsrc(struct sockaddr_in6 *,

-           struct ip6_pktopts *, struct inpcb *, struct route_in6 *,
-           struct ifnet **, struct in6_addr *, unsigned int, int *);
-extern struct in6_addrpolicy *
-       in6_addrsel_lookup_policy(struct sockaddr_in6 *);
-int in6_selectroute(struct sockaddr_in6 *, struct sockaddr_in6 *,
-       struct ip6_pktopts *, struct ip6_moptions *, struct route_in6 *,
-       struct ifnet **, struct rtentry **, int, const struct ip6_out_args *);
-int ip6_setpktopts(struct mbuf *control, struct ip6_pktopts *opt, struct ip6_pktopts *stickyopt, int uproto);
-u_int32_t ip6_randomid(void);
-u_int32_t ip6_randomflowlabel(void);
-
-#endif /* KERNEL */
-#endif /* KERNEL_PRIVATE */
-
+    struct ip6_pktopts *, struct inpcb *, struct route_in6 *,
+    struct ifnet **, struct in6_addr *, unsigned int, int *);
+extern struct in6_addrpolicy *in6_addrsel_lookup_policy(struct sockaddr_in6 *);
+extern int in6_selectroute(struct sockaddr_in6 *, struct sockaddr_in6 *,
+    struct ip6_pktopts *, struct ip6_moptions *, struct in6_ifaddr **,
+    struct route_in6 *, struct ifnet **, struct rtentry **, int,
+    struct ip6_out_args *);
+extern int ip6_setpktopts(struct mbuf *control, struct ip6_pktopts *opt,
+    struct ip6_pktopts *stickyopt, int uproto);
+extern u_int32_t ip6_randomid(void);
+extern u_int32_t ip6_randomflowlabel(void);
+#endif /* BSD_KERNEL_PRIVATE */

 #endif /* !_NETINET6_IP6_VAR_H_ */
 #endif /* !_NETINET6_IP6_VAR_H_ */