xnu-2050.48.11.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 96ca4908862e241c6b00dd04b0ecff04c0f08b0e..9507c904b6ee5813592b27aac4dfd271a3a3543e 100644 (file)
--- a/bsd/netinet6/ip6_var.h
+++ b/bsd/netinet6/ip6_var.h
@@ -1,3 +1,31 @@
+/*
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+

 /*     $FreeBSD: src/sys/netinet6/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 $        */
 
 /*     $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 $        */
 


@@ -69,37 +97,29 @@
 #define _NETINET6_IP6_VAR_H_
 #include <sys/appleapiopts.h>
 
 #define _NETINET6_IP6_VAR_H_
 #include <sys/appleapiopts.h>
 

-#ifdef KERNEL_PRIVATE
+#ifdef XNU_KERNEL_PRIVATE

 /*
  * IP6 reassembly queue structure.  Each fragment
  * being reassembled is attached to one of these structures.
  */
 struct ip6q {
 /*
  * IP6 reassembly queue structure.  Each fragment
  * being reassembled is attached to one of these structures.
  */
 struct ip6q {

-       u_int32_t       ip6q_head;
-       u_int16_t       ip6q_len;
-       u_int8_t        ip6q_nxt;       /* ip6f_nxt in first fragment */
-       u_int8_t        ip6q_hlim;

        struct ip6asfrag *ip6q_down;
        struct ip6asfrag *ip6q_up;
        u_int32_t       ip6q_ident;
        struct ip6asfrag *ip6q_down;
        struct ip6asfrag *ip6q_up;
        u_int32_t       ip6q_ident;

-       u_int8_t        ip6q_arrive;
+       u_int8_t        ip6q_nxt;
+       u_int8_t        ip6q_ecn;

        u_int8_t        ip6q_ttl;
        u_int8_t        ip6q_ttl;

-       struct in6_addr ip6q_src, ip6q_dst;
+       struct in6_addr ip6q_src, ip6q_dst;

        struct ip6q     *ip6q_next;
        struct ip6q     *ip6q_prev;
        int             ip6q_unfrglen;  /* len of unfragmentable part */
 #if notyet
        u_char  *ip6q_nxtp;
 #endif
        struct ip6q     *ip6q_next;
        struct ip6q     *ip6q_prev;
        int             ip6q_unfrglen;  /* len of unfragmentable part */
 #if notyet
        u_char  *ip6q_nxtp;
 #endif

-       int                     ip6q_nfrag;     /* number of fragments */
+       int             ip6q_nfrag;     /* # of fragments */

 };
 
 struct ip6asfrag {
 };
 
 struct ip6asfrag {

-       u_int32_t       ip6af_head;
-       u_int16_t       ip6af_len;
-       u_int8_t        ip6af_nxt;
-       u_int8_t        ip6af_hlim;
-       /* must not override the above members during reassembling */

        struct ip6asfrag *ip6af_down;
        struct ip6asfrag *ip6af_up;
        struct mbuf     *ip6af_m;
        struct ip6asfrag *ip6af_down;
        struct ip6asfrag *ip6af_up;
        struct mbuf     *ip6af_m;


@@ -112,10 +132,55 @@ struct    ip6asfrag {
 #define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m))
 
 struct ip6_moptions {
 #define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m))
 
 struct ip6_moptions {

+       decl_lck_mtx_data(, im6o_lock);
+       uint32_t im6o_refcnt;           /* ref count */
+       uint32_t im6o_debug;            /* see ifa_debug flags */

        struct  ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */
        u_char  im6o_multicast_hlim;    /* hoplimit for outgoing multicasts */
        u_char  im6o_multicast_loop;    /* 1 >= hear sends if a member */
        struct  ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */
        u_char  im6o_multicast_hlim;    /* hoplimit for outgoing multicasts */
        u_char  im6o_multicast_loop;    /* 1 >= hear sends if a member */

-       LIST_HEAD(, in6_multi_mship) im6o_memberships;
+       u_short im6o_num_memberships;   /* no. memberships this socket */
+       u_short im6o_max_memberships;   /* max memberships this socket */
+       struct  in6_multi **im6o_membership;    /* group memberships */
+       struct  in6_mfilter *im6o_mfilters;     /* source filters */
+       void (*im6o_trace)              /* callback fn for tracing refs */
+           (struct ip6_moptions *, int);
+};
+
+#define        IM6O_LOCK_ASSERT_HELD(_im6o)                                    \
+       lck_mtx_assert(&(_im6o)->im6o_lock, LCK_MTX_ASSERT_OWNED)
+
+#define        IM6O_LOCK_ASSERT_NOTHELD(_im6o)                                 \
+       lck_mtx_assert(&(_im6o)->im6o_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define        IM6O_LOCK(_im6o)                                                \
+       lck_mtx_lock(&(_im6o)->im6o_lock)
+
+#define        IM6O_LOCK_SPIN(_im6o)                                           \
+       lck_mtx_lock_spin(&(_im6o)->im6o_lock)
+
+#define        IM6O_CONVERT_LOCK(_im6o) do {                                   \
+       IM6O_LOCK_ASSERT_HELD(_im6o);                                   \
+       lck_mtx_convert_spin(&(_im6o)->im6o_lock);                      \
+} while (0)
+
+#define        IM6O_UNLOCK(_im6o)                                              \
+       lck_mtx_unlock(&(_im6o)->im6o_lock)
+
+#define        IM6O_ADDREF(_im6o)                                              \
+       im6o_addref(_im6o, 0)
+
+#define        IM6O_ADDREF_LOCKED(_im6o)                                       \
+       im6o_addref(_im6o, 1)
+
+#define        IM6O_REMREF(_im6o)                                              \
+       im6o_remref(_im6o)
+
+struct ip6_exthdrs {
+       struct mbuf *ip6e_ip6;
+       struct mbuf *ip6e_hbh;
+       struct mbuf *ip6e_dest1;
+       struct mbuf *ip6e_rthdr;
+       struct mbuf *ip6e_dest2;

 };
 
 /*
 };
 
 /*


@@ -130,6 +195,14 @@ struct     ip6po_rhinfo {
 #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 */
+};
+#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 */
        int     ip6po_hlim;     /* Hoplimit for outgoing packets */
 struct ip6_pktopts {
        struct  mbuf *ip6po_m;  /* Pointer to mbuf storing the data */
        int     ip6po_hlim;     /* Hoplimit for outgoing packets */


@@ -137,8 +210,9 @@ struct      ip6_pktopts {
        /* Outgoing IF/address information */
        struct  in6_pktinfo *ip6po_pktinfo;
 
        /* Outgoing IF/address information */
        struct  in6_pktinfo *ip6po_pktinfo;
 

-       struct  sockaddr *ip6po_nexthop; /* Next-hop address */
-       
+       /* Next-hop address information */
+       struct  ip6po_nhinfo ip6po_nhinfo;
+

        struct  ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */
 
        /* Destination options header (before a routing header) */
        struct  ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */
 
        /* Destination options header (before a routing header) */


@@ -149,12 +223,33 @@ struct    ip6_pktopts {
 
        /* Destination options header (after a routing header) */
        struct  ip6_dest *ip6po_dest2;
 
        /* Destination options header (after a routing header) */
        struct  ip6_dest *ip6po_dest2;

+
+       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 */
+
+       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 */
+
+       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) */
+#endif
+#define IP6PO_DONTFRAG 0x04    /* disable fragmentation (IPV6_DONTFRAG) */
+#define IP6PO_USECOA   0x08    /* use care of address */

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

-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */

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


@@ -171,7 +266,7 @@ struct      ip6stat {
        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_fragmented;       /* datagrams sucessfully fragmented */
+       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_badoptions;       /* error in option processing */
        u_quad_t ip6s_ofragments;       /* output fragments created */
        u_quad_t ip6s_cantfrag;         /* don't fragment flag was set, etc. */
        u_quad_t ip6s_badoptions;       /* error in option processing */


@@ -210,11 +305,17 @@ struct    ip6stat {
         * from the destination is chosen.
         */
        u_quad_t ip6s_sources_otherscope[16];
         * from the destination is chosen.
         */
        u_quad_t ip6s_sources_otherscope[16];

-       /* number of times that an deprecated address is chosen */
+       /* number of times that a deprecated address is chosen */

        u_quad_t ip6s_sources_deprecated[16];
 
        u_quad_t ip6s_forward_cachehit;
        u_quad_t ip6s_forward_cachemiss;
        u_quad_t ip6s_sources_deprecated[16];
 
        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 */

 };
 
 #ifdef KERNEL_PRIVATE
 };
 
 #ifdef KERNEL_PRIVATE


@@ -249,12 +350,49 @@ struct ip6aux {
 };
 
 /* flags passed to ip6_output as last parameter */
 };
 
 /* flags passed to ip6_output as last parameter */

-#define        IPV6_DADOUTPUT          0x01    /* DAD */
+#define        IPV6_UNSPECSRC          0x01    /* allow :: as the source address */

 #define        IPV6_FORWARDING         0x02    /* most of IPv6 header exists */
 #define        IPV6_MINMTU             0x04    /* use minimum MTU (IPV6_USE_MIN_MTU) */
 #define        IPV6_FORWARDING         0x02    /* most of IPv6 header exists */
 #define        IPV6_MINMTU             0x04    /* use minimum MTU (IPV6_USE_MIN_MTU) */

+#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)
+
+/*
+ * On platforms which require strict alignment (currently for anything but
+ * i386 or x86_64), this macro checks whether the pointer to the IP header
+ * is 32-bit aligned, and assert otherwise.
+ */
+#if defined(__i386__) || defined(__x86_64__)
+#define        IP6_HDR_STRICT_ALIGNMENT_CHECK(_ip6) do { } while (0)
+#else /* !__i386__ && !__x86_64__ */
+#define        IP6_HDR_STRICT_ALIGNMENT_CHECK(_ip6) do {                       \
+       if (!IP_HDR_ALIGNED_P(_ip6)) {                                  \
+               panic_plain("\n%s: Unaligned IPv6 header %p\n",         \
+                   __func__, _ip6);                                    \
+       }                                                               \
+} while (0)
+#endif /* !__i386__ && !__x86_64__ */
+#endif /* XNU_KERNEL_PRIVATE */
+
+#include <net/flowadv.h>
+
+/*
+ * Extra information passed to ip6_output when IPV6_OUTARGS is set.
+ */
+struct ip6_out_args {
+       unsigned int    ip6oa_boundif;  /* bound outgoing interface */
+       struct flowadv  ip6oa_flowadv;  /* flow advisory code */
+       u_int32_t       ip6oa_flags;    /* IP6OAF flags (see below) */
+#define        IP6OAF_SELECT_SRCIF     0x00000001      /* src interface selection */
+#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 */
+};

 
 extern struct  ip6stat ip6stat;        /* statistics */
 
 extern struct  ip6stat ip6stat;        /* statistics */

-extern u_int32_t ip6_id;               /* fragment identifier */
+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_defhlim;            /* default hop limit */
 extern int     ip6_defmcasthlim;       /* default multicast hop limit */
 extern int     ip6_forwarding;         /* act as router? */


@@ -263,21 +401,28 @@ 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_use_deprecated;     /* allow deprecated addr as source */
 extern int     ip6_rr_prune;           /* router renumbering prefix
                                         * walk list every 5 sec.    */

-#define ip6_mapped_addr_on     (!ip6_v6only)
+extern int     ip6_mcast_pmtu;         /* enable pMTU discovery for multicast? */
+#define ip6_mapped_addr_on      (!ip6_v6only)

 extern int     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 */
 extern struct socket *ip6_mrouter;     /* multicast routing daemon */

+#endif

 extern int     ip6_sendredirects;      /* send IP redirects when forwarding? */
 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_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_sourcecheck;        /* Verify source interface */
 extern int     ip6_sourcecheck_interval; /* Interval between log messages */

-extern int     ip6_accept_rtadv;       /* Acts as a host not a router */
-extern int     ip6_keepfaith;          /* Firewall Aided Internet Translator */
+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_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 int ip6_auto_flowlabel;
 
 extern u_int32_t ip6_flow_seq;
 extern int ip6_auto_flowlabel;


@@ -289,70 +434,95 @@ 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_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 struct  pr_usrreqs rip6_usrreqs;
 
 extern struct  pr_usrreqs rip6_usrreqs;

+extern struct   pr_usrreqs icmp6_dgram_usrreqs;
+
+extern int     ip6_doscopedroute;
+extern int     ip6_restrictrecvif;
+

 struct sockopt;
 
 struct inpcb;
 
 struct sockopt;
 
 struct inpcb;
 

-int    icmp6_ctloutput(struct socket *, struct sockopt *sopt);
+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;
 void   ip6_init(void);
 
 struct in6_ifaddr;
 void   ip6_init(void);

-void   ip6intr(void);

 void   ip6_input(struct mbuf *);
 struct in6_ifaddr *ip6_getdstifaddr(struct mbuf *);
 void   ip6_freepcbopts(struct ip6_pktopts *);
 void   ip6_input(struct mbuf *);
 struct in6_ifaddr *ip6_getdstifaddr(struct mbuf *);
 void   ip6_freepcbopts(struct ip6_pktopts *);

-void   ip6_freemoptions(struct ip6_moptions *);
-int    ip6_unknown_opt(u_int8_t *, struct mbuf *, int, int);
+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 *);
 
 char * ip6_get_prevhdr(struct mbuf *, int);
 int    ip6_nexthdr(struct mbuf *, int, int, int *);
 int    ip6_lasthdr(struct mbuf *, int, int, int *);
 

-struct mbuf *ip6_addaux(struct mbuf *);
-struct mbuf *ip6_findaux(struct mbuf *);
+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 *);
 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 *);
 
 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 *);

-void   ip6_savecontrol(struct inpcb *, struct mbuf **, struct ip6_hdr *,
-                            struct mbuf *);
-void   ip6_notify_pmtu(struct inpcb *, struct sockaddr_in6 *,
-                            u_int32_t *);
-int    ip6_sysctl(int *, u_int, void *, size_t *, void *, size_t);
-
-void   ip6_forward(struct mbuf *, int, int);
-
+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 *);
 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 **, int locked);
+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);
 int    ip6_ctloutput(struct socket *, struct sockopt *sopt);

-void   init_ip6pktopts(struct ip6_pktopts *);
+void   ip6_initpktopts(struct ip6_pktopts *);

 int    ip6_setpktoptions(struct mbuf *, struct ip6_pktopts *, int, int);
 int    ip6_setpktoptions(struct mbuf *, struct ip6_pktopts *, int, int);

-void   ip6_clearpktopts(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 *);
 
 struct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int);
 int    ip6_optlen(struct inpcb *);
 

-int    route6_input(struct mbuf **, int *);
+int    route6_input(struct mbuf **, int *, int);

 
 void   frag6_init(void);
 
 void   frag6_init(void);

-int    frag6_input(struct mbuf **, int *);
+int    frag6_input(struct mbuf **, int *, int);

 void   frag6_slowtimo(void);
 void   frag6_drain(void);
 
 void   frag6_slowtimo(void);
 void   frag6_drain(void);
 

-void   rip6_init(void);
-int    rip6_input(struct mbuf **mp, int *offset);
+int    rip6_input(struct mbuf **, int *, int);

 void   rip6_ctlinput(int, struct sockaddr *, void *);
 int    rip6_ctloutput(struct socket *so, struct sockopt *sopt);
 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    rip6_usrreq(struct socket *,
-           int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);
+int    rip6_output(struct mbuf *, struct socket *, struct sockaddr_in6 *, struct mbuf *, int);
+
+int    dest6_input(struct mbuf **, int *, int);
+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);

 
 

-int    dest6_input(struct mbuf **, int *);
-int    none_input(struct mbuf **, int *);

 #endif /* KERNEL */
 #endif /* KERNEL_PRIVATE */
 
 #endif /* KERNEL */
 #endif /* KERNEL_PRIVATE */