IPv6 multicast routing.

  kernel IPv6 multicast routing support.
  pim6 dense mode daemon
  pim6 sparse mode daemon
  netstat support of IPv6 multicast routing statistics

  Merging to the current and testing with other existing multicast routers
  is done by Tatsuya Jinmei <jinmei@kame.net>, who writes and maintainances
  the base code in KAME distribution.

  Make world check and kernel build check was also successful.

1 files changed, 597 insertions, 0 deletions

diff --git a/usr.sbin/pim6dd/defs.h b/usr.sbin/pim6dd/defs.h
new file mode 100644
index 0000000..5970c74
--- /dev/null
+++ b/usr.sbin/pim6dd/defs.h
@@ -0,0 +1,597 @@
+/*
+ *  Copyright (c) 1998 by the University of Oregon.
+ *  All rights reserved.
+ *
+ *  Permission to use, copy, modify, and distribute this software and
+ *  its documentation in source and binary forms for lawful
+ *  purposes and without fee is hereby granted, provided
+ *  that the above copyright notice appear in all copies and that both
+ *  the copyright notice and this permission notice appear in supporting
+ *  documentation, and that any documentation, advertising materials,
+ *  and other materials related to such distribution and use acknowledge
+ *  that the software was developed by the University of Oregon.
+ *  The name of the University of Oregon may not be used to endorse or
+ *  promote products derived from this software without specific prior
+ *  written permission.
+ *
+ *  THE UNIVERSITY OF OREGON DOES NOT MAKE ANY REPRESENTATIONS
+ *  ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE.  THIS SOFTWARE IS
+ *  PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
+ *  INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND
+ *  NON-INFRINGEMENT.
+ *
+ *  IN NO EVENT SHALL UO, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY
+ *  SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT,
+ *  TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH,
+ *  THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *  Other copyrights might apply to parts of this software and are so
+ *  noted when applicable.
+ */
+/*
+ *  Questions concerning this software should be directed to
+ *  Kurt Windisch (kurtw@antc.uoregon.edu)
+ *
+ *  $Id: defs.h,v 1.6 1999/12/10 06:09:13 itojun Exp $
+ */
+/*
+ * Part of this program has been derived from PIM sparse-mode pimd.
+ * The pimd program is covered by the license in the accompanying file
+ * named "LICENSE.pimd".
+ *
+ * The pimd program is COPYRIGHT 1998 by University of Southern California.
+ *
+ * Part of this program has been derived from mrouted.
+ * The mrouted program is covered by the license in the accompanying file
+ * named "LICENSE.mrouted".
+ *
+ * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
+ * Leland Stanford Junior University.
+ *
+ * $FreeBSD$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+#include <syslog.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#if ((defined(SYSV)) || (defined(__bsdi__)) || ((defined SunOS) && (SunOS < 50)))
+#include <sys/sockio.h>
+#endif /* SYSV || __bsdi__ || SunOS 4.x */
+#include <sys/time.h>
+#include <net/if.h>
+#include <net/if_var.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/icmp6.h>
+
+#include <netinet6/in6_var.h>
+#include <netinet/ip6.h>
+
+#include <arpa/inet.h>
+#include <osreldate.h>
+#define	rtentry kernel_rtentry
+#include <net/route.h>
+#undef rtentry
+#include <netinet/ip_mroute.h>
+#include <netinet6/ip6_mroute.h>
+#include <strings.h>
+#ifdef RSRR
+#include <sys/un.h>
+#endif /* RSRR */
+
+typedef u_int   u_int32;
+typedef u_short u_int16;
+typedef u_char  u_int8;
+
+#ifndef __P
+#ifdef __STDC__
+#define	__P(x)  x
+#else
+#define	__P(x)  ()
+#endif
+#endif
+
+typedef void (*cfunc_t) __P((void *));
+typedef void (*ihfunc_t) __P((int, fd_set *));
+
+#include "pimdd.h"
+#include "mrt.h"
+#include "mld6.h"
+#include "vif.h"
+#include "debug.h"
+#include "pathnames.h"
+#ifdef RSRR
+#include "rsrr.h"
+#include "rsrr_var.h"
+#endif /* RSRR */
+
+/*
+ * Miscellaneous constants and macros
+ */
+/* #if (!(defined(__bsdi__)) && !(defined(KERNEL))) */
+#ifndef KERNEL
+#define	max(a, b)               ((a) < (b) ? (b) : (a))
+#define	min(a, b)               ((a) > (b) ? (b) : (a))
+#endif
+
+/*
+ * Various definitions to make it working for different platforms
+ */
+/* The old style sockaddr definition doesn't have sa_len */
+#if (defined(BSD) && (BSD >= 199006)) /* sa_len was added with 4.3-Reno */
+#define	HAVE_SA_LEN
+#endif
+
+/* Versions of Solaris older than 2.6 don't have routing sockets. */
+/* XXX TODO: check FreeBSD version and add all other platforms */
+#if ((defined(SunOS) && SunOS >=56) || (defined __FreeBSD__) || (defined IRIX) || (defined __bsdi__) || defined(__NetBSD__))
+#define	HAVE_ROUTING_SOCKETS
+#endif
+
+#define	TRUE			1
+#define	FALSE			0
+
+#define	CREATE                  TRUE
+#define	DONT_CREATE             FALSE
+
+#define	EQUAL(s1, s2)		(strcmp((s1), (s2)) == 0)
+
+/* obnoxious gcc gives an extraneous warning about this constant... */
+#if defined(__STDC__) || defined(__GNUC__)
+#define	JAN_1970        2208988800UL    /* 1970 - 1900 in seconds */
+#else
+#define	JAN_1970        2208988800L     /* 1970 - 1900 in seconds */
+#define	const           /**/
+#endif
+
+
+#define	MINHLIM			1  /* min hoplim in the packets send locally */
+
+#define	MAX_IP_PACKET_LEN       576
+#define	MIN_IP_HEADER_LEN       20
+#define	MAX_IP_HEADER_LEN       60
+
+
+/*
+ * The IGMPv2 <netinet/in.h> defines INADDR_ALLRTRS_GROUP, but earlier
+ * ones don't, so we define it conditionally here.
+ */
+#ifndef INADDR_ALLRTRS_GROUP
+					/* address for multicast mtrace msg */
+#define	INADDR_ALLRTRS_GROUP	(u_int32)0xe0000002	/* 224.0.0.2 */
+#endif
+
+#ifndef INADDR_MAX_LOCAL_GROUP
+define INADDR_MAX_LOCAL_GROUP        (u_int32)0xe00000ff     /* 224.0.0.255 */
+#endif
+
+#define	INADDR_ANY_N            (u_int32)0x00000000     /* INADDR_ANY in
+							 * network order */
+#define	CLASSD_PREFIX           (u_int32)0xe0000000     /* 224.0.0.0 */
+#define	ALL_MCAST_GROUPS_ADDR   (u_int32)0xe0000000     /* 224.0.0.0 */
+#define	ALL_MCAST_GROUPS_LENGTH 4
+
+/* Used by DVMRP */
+#define	DEFAULT_METRIC		1	/* default subnet/tunnel metric     */
+#define	DEFAULT_THRESHOLD	1	/* default subnet/tunnel threshold  */
+
+#define	TIMER_INTERVAL		5	/* 5 sec virtual timer granularity  */
+
+#ifdef RSRR
+#define	BIT_ZERO(X)             ((X) = 0)
+#define	BIT_SET(X,n)            ((X) |= 1 << (n))
+#define	BIT_CLR(X,n)            ((X) &= ~(1 << (n)))
+#define	BIT_TST(X,n)            ((X) & 1 << (n))
+#endif /* RSRR */
+
+#ifdef SYSV
+#define	bcopy(a, b, c)		memcpy((b), (a), (c))
+#define	bzero(s, n)		memset((s), 0, (n))
+#define	setlinebuf(s)		setvbuf((s), (NULL), (_IOLBF), 0)
+#define	RANDOM()                lrand48()
+#else
+#define	RANDOM()                random()
+#endif /* SYSV */
+
+/*
+ * External declarations for global variables and functions.
+ */
+#define	RECV_BUF_SIZE 64*1024  /* Maximum buff size to send
+					        * or receive packet */
+#define	SO_RECV_BUF_SIZE_MAX 256*1024
+#define	SO_RECV_BUF_SIZE_MIN 48*1024
+
+/* TODO: describe the variables and clean up */
+extern char		*mld6_recv_buf;
+extern char		*mld6_send_buf;
+extern char		*pim6_recv_buf;
+extern char		*pim6_send_buf;
+extern int		mld6_socket;
+extern int		pim6_socket;
+extern struct sockaddr_in6 allnodes_group;
+extern struct sockaddr_in6 allrouters_group;
+extern struct sockaddr_in6 allpim6routers_group;
+extern if_set      	nbr_mifs;
+
+#ifdef RSRR
+extern int              rsrr_socket;
+#endif /* RSRR */
+
+extern u_long		virtual_time;
+extern char		configfilename[];
+
+extern u_int32          default_source_metric;
+extern u_int32          default_source_preference;
+
+extern srcentry_t 	*srclist;
+extern grpentry_t 	*grplist;
+
+extern struct uvif	uvifs[];
+extern vifi_t		numvifs;
+extern int              total_interfaces;
+extern int              phys_vif;
+extern int		udp_socket;
+
+extern int		vifs_down;
+
+extern char		s1[];
+extern char		s2[];
+extern char		s3[];
+extern char		s4[];
+
+#if !(defined(BSD) && (BSD >= 199103))
+extern int		errno;
+extern int		sys_nerr;
+extern char *		sys_errlist[];
+#endif
+
+
+#ifndef IGMP_MEMBERSHIP_QUERY
+#define	IGMP_MEMBERSHIP_QUERY		IGMP_HOST_MEMBERSHIP_QUERY
+#if !(defined(__NetBSD__))
+#define	IGMP_V1_MEMBERSHIP_REPORT	IGMP_HOST_MEMBERSHIP_REPORT
+#define	IGMP_V2_MEMBERSHIP_REPORT	IGMP_HOST_NEW_MEMBERSHIP_REPORT
+#else
+#define	IGMP_V1_MEMBERSHIP_REPORT       IGMP_v1_HOST_MEMBERSHIP_REPORT
+#define	IGMP_V2_MEMBERSHIP_REPORT       IGMP_v2_HOST_MEMBERSHIP_REPORT
+#endif
+#define	IGMP_V2_LEAVE_GROUP		IGMP_HOST_LEAVE_MESSAGE
+#endif
+
+#if defined(__NetBSD__)
+#define	IGMP_MTRACE_RESP                IGMP_MTRACE_REPLY
+#define	IGMP_MTRACE                     IGMP_MTRACE_QUERY
+#endif
+
+/* For timeout. The timers count down */
+#define	SET_TIMER(timer, value) (timer) = (value)
+#define	IF_TIMER_SET(timer) if ((timer) > 0)
+#define	IF_TIMER_NOT_SET(timer) if ((timer) <= 0)
+#define	FIRE_TIMER(timer)       (timer) = 0
+
+#define	IF_TIMEOUT(value)     \
+  if (!(((value) >= TIMER_INTERVAL) && ((value) -= TIMER_INTERVAL)))
+
+#define	IF_NOT_TIMEOUT(value) \
+  if (((value) >= TIMER_INTERVAL) && ((value) -= TIMER_INTERVAL))
+
+#define	TIMEOUT(value)        \
+     (!(((value) >= TIMER_INTERVAL) && ((value) -= TIMER_INTERVAL)))
+
+#define	NOT_TIMEOUT(value)    \
+     (((value) >= TIMER_INTERVAL) && ((value) -= TIMER_INTERVAL))
+
+#define	ELSE else           /* To make emacs cc-mode happy */
+
+
+/*
+ * External function definitions
+ */
+
+/* callout.c */
+extern void     callout_init      __P((void));
+extern void     free_all_callouts __P((void));
+extern void     age_callout_queue __P((int));
+extern int      timer_nextTimer   __P((void));
+extern int      timer_setTimer    __P((int, cfunc_t, void *));
+extern void     timer_clearTimer  __P((int));
+extern int      timer_leftTimer   __P((int));
+
+/* config.c */
+extern void config_vifs_from_kernel __P((void));
+extern void config_vifs_from_file   __P((void));
+
+/* debug.c */
+extern char     *packet_kind __P((u_int proto, u_int type, u_int code));
+extern int      debug_kind   __P((u_int proto, u_int type, u_int code));
+extern void     log          __P((int, int, char *, ...));
+extern int      log_level    __P((u_int proto, u_int type, u_int code));
+extern void     dump         __P((int i));
+extern void     fdump        __P((int i));
+extern void     cdump        __P((int i));
+extern void     dump_vifs    __P((FILE *fp));
+extern void     dump_pim_mrt __P((FILE *fp));
+extern void	dump_lcl_grp __P((FILE *fp));
+
+/* dvmrp_proto.c */
+extern void	dvmrp_accept_probe             __P((u_int32 src, u_int32 dst,
+						    char *p, int datalen,
+						    u_int32 level));
+extern void	dvmrp_accept_report            __P((u_int32 src, u_int32 dst,
+						    char *p, int datalen,
+						    u_int32 level));
+extern void	dvmrp_accept_info_request      __P((u_int32 src, u_int32 dst,
+						    u_char *p, int datalen));
+extern void	dvmrp_accept_info_reply        __P((u_int32 src, u_int32 dst,
+						    u_char *p, int datalen));
+extern void	dvmrp_accept_neighbors         __P((u_int32 src, u_int32 dst,
+						    u_char *p, int datalen,
+						    u_int32 level));
+extern void	dvmrp_accept_neighbors2        __P((u_int32 src, u_int32 dst,
+						    u_char *p, int datalen,
+						    u_int32 level));
+extern void	dvmrp_accept_prune             __P((u_int32 src, u_int32 dst,
+						    char *p, int datalen));
+extern void	dvmrp_accept_graft             __P((u_int32 src, u_int32 dst,
+						    char *p, int datalen));
+extern void	dvmrp_accept_g_ack             __P((u_int32 src, u_int32 dst,
+						    char *p, int datalen));
+/* mld6.c */
+void init_mld6 __P((void));
+void send_mld6 __P((int type, int code, struct sockaddr_in6 *src,
+		    struct sockaddr_in6 *dst, struct in6_addr *group,
+		    int index, int delay, int datalen, int alert));
+
+/* mld6_proto.c */
+extern void     query_groups            __P((struct uvif *v));
+extern int      check_grp_membership    __P((struct uvif *v,
+					     struct sockaddr_in6 *group));
+extern void	accept_listener_query	__P((struct sockaddr_in6 *src,
+					     struct in6_addr *dst,
+					     struct in6_addr *group,
+					     int tmo));
+extern void	accept_listener_report	__P((struct sockaddr_in6 *src,
+					     struct in6_addr *dst,
+					     struct in6_addr *group));
+extern void	accept_listener_done	__P((struct sockaddr_in6 *src,
+					     struct in6_addr *dst,
+					     struct in6_addr *group));
+extern int	check_multicast_listener __P((struct uvif *v,
+					      struct sockaddr_in6 *group));
+
+/* igmp.c */
+#if 0
+extern void     init_igmp     __P((void));
+extern void     send_igmp     __P((char *buf, u_int32 src, u_int32 dst,
+				   int type, int code, u_int32 group,
+				   int datalen));
+
+/* igmp_proto.c */
+extern void     query_groups            __P((struct uvif *v));
+extern void     accept_membership_query __P((u_int32 src, u_int32 dst,
+					     u_int32 group, int tmo));
+extern void     accept_group_report     __P((u_int32 src, u_int32 dst,
+					     u_int32 group, int r_type));
+extern void     accept_leave_message    __P((u_int32 src, u_int32 dst,
+					     u_int32 group));
+#endif
+
+#if 0
+/* inet.c */
+extern int      inet_cksum        __P((u_int16 *addr, u_int len));
+extern int      inet_valid_host   __P((u_int32 naddr));
+extern int      inet_valid_mask   __P((u_int32 mask));
+extern int      inet_valid_subnet __P((u_int32 nsubnet, u_int32 nmask));
+extern char    *inet_fmt          __P((u_int32, char *s));
+#ifdef NOSUCHDEF
+extern char    *inet_fmts         __P((u_int32 addr, u_int32 mask, char *s));
+#endif /* NOSUCHDEF */
+extern char    *netname           __P((u_int32 addr, u_int32 mask));
+extern u_int32  inet_parse        __P((char *s, int n));
+#endif
+
+/* inet6.c */
+extern int	inet6_equal	__P((struct sockaddr_in6 *sa1,
+				     struct sockaddr_in6 *sa2));
+extern int	inet6_lessoreq	__P((struct sockaddr_in6 *sa1,
+				     struct sockaddr_in6 *sa2));
+extern int	inet6_lessthan	__P((struct sockaddr_in6 *sa1,
+				     struct sockaddr_in6 *sa2));
+extern int	inet6_localif_address __P((struct sockaddr_in6 *sa,
+					   struct uvif *v));
+extern int	inet6_greaterthan __P((struct sockaddr_in6 *sa1,
+				       struct sockaddr_in6 *sa2));
+extern int	inet6_greateroreq __P((struct sockaddr_in6 *sa1,
+				       struct sockaddr_in6 *sa2));
+extern int	inet6_match_prefix __P((struct sockaddr_in6 *sa1,
+					struct sockaddr_in6 *sa2,
+					struct in6_addr *mask));
+extern int	inet6_mask2plen	   __P((struct in6_addr *mask));
+extern int	inet6_uvif2scopeid __P((struct sockaddr_in6 *sa, struct uvif *v));
+extern int	inet6_valid_host __P((struct sockaddr_in6 *addr));
+extern char	*inet6_fmt 	__P((struct in6_addr *addr));
+extern char	*ifindex2str	__P((int ifindex));
+extern char	*net6name	__P((struct in6_addr *prefix,
+				     struct in6_addr *mask));
+
+/* kern.c */
+extern void     k_set_rcvbuf    __P((int socket, int bufsize, int minsize));
+extern void     k_hdr_include   __P((int socket, int bool));
+extern void     k_set_hlim       __P((int socket, int t));
+extern void     k_set_loop      __P((int socket, int l));
+extern void     k_set_if        __P((int socket, u_int ifindex));
+extern void     k_join          __P((int socket, struct in6_addr *grp,
+				     u_int ifindex));
+extern void     k_leave         __P((int socket, struct in6_addr *grp,
+				     u_int ifindex));
+extern void     k_init_pim      __P((int));
+extern void     k_stop_pim      __P((int));
+extern int      k_del_mfc       __P((int socket, struct sockaddr_in6 *source,
+				     struct sockaddr_in6 *group));
+extern int      k_chg_mfc       __P((int socket, struct sockaddr_in6 *source,
+				     struct sockaddr_in6 *group, vifi_t iif,
+				     if_set *oifs));
+extern void     k_add_vif       __P((int socket, vifi_t vifi, struct uvif *v));
+extern void     k_del_vif       __P((int socket, vifi_t vifi));
+extern int      k_get_vif_count __P((vifi_t vifi, struct vif_count *retval));
+extern int      k_get_sg_cnt    __P((int socket, struct sockaddr_in6 *source,
+				     struct sockaddr_in6 *group,
+				     struct sg_count *retval));
+
+/* main.c */
+extern int      register_input_handler __P((int fd, ihfunc_t func));
+
+/* mrt.c */
+extern void         init_pim6_mrt            __P((void));
+extern mrtentry_t   *find_route              __P((struct sockaddr_in6 *source,
+						  struct sockaddr_in6 *group,
+						  u_int16 flags, char create));
+extern grpentry_t   *find_group              __P((struct sockaddr_in6 *group));
+extern srcentry_t   *find_source             __P((struct sockaddr_in6 *source));
+extern void         delete_mrtentry          __P((mrtentry_t *mrtentry_ptr));
+extern void         delete_srcentry          __P((srcentry_t *srcentry_ptr));
+extern void         delete_grpentry          __P((grpentry_t *grpentry_ptr));
+extern struct mrtfilter *search_filter	     __P((struct in6_addr *));
+extern struct mrtfilter *add_filter	     __P((int, struct in6_addr *,
+						  struct in6_addr *, int));
+
+/* pim6.c */
+extern void         init_pim6        __P((void));
+extern void	    send_pim6	     __P((char *buf, struct sockaddr_in6 *src,
+					  struct sockaddr_in6 *dst,
+					  int type, int datalen));
+
+/* pim6_poto.c */
+extern int receive_pim6_hello         __P((struct sockaddr_in6 *src,
+					   char *pim_message, int datalen));
+extern int send_pim6_hello            __P((struct uvif *v, u_int16 holdtime));
+extern void delete_pim6_nbr           __P((pim_nbr_entry_t *nbr_delete));
+extern int receive_pim6_join_prune    __P((struct sockaddr_in6 *src,
+					   char *pim_message, int datalen));
+extern int send_pim6_jp              __P((mrtentry_t *mrtentry_ptr, int action,
+					  mifi_t mifi,
+					  struct sockaddr_in6 *target_addr,
+					  u_int16 holdtime, int echo));
+
+extern int receive_pim6_assert        __P((struct sockaddr_in6 *src,
+					   char *pim_message, int datalen));
+extern int send_pim6_assert           __P((struct sockaddr_in6 *source,
+					   struct sockaddr_in6 *group,
+					   mifi_t mifi,
+					   mrtentry_t *mrtentry_ptr));
+extern void delete_pim6_graft_entry   __P((mrtentry_t *mrtentry_ptr));
+extern int receive_pim6_graft         __P((struct sockaddr_in6 *src,
+					   char *pim_message, int datalen,
+					   int pimtype));
+extern int send_pim6_graft            __P((mrtentry_t *mrtentry_ptr));
+
+#if 0
+/* pim.c */
+extern void         init_pim         __P((void));
+extern void         send_pim         __P((char *buf, u_int32 src, u_int32 dst,
+					  int type, int datalen));
+extern void         send_pim_unicast __P((char *buf, u_int32 src, u_int32 dst,
+					  int type, int datalen));
+/* pim_proto.c */
+extern int receive_pim_hello         __P((u_int32 src, u_int32 dst,
+					  char *pim_message, int datalen));
+extern int send_pim_hello            __P((struct uvif *v, u_int16 holdtime));
+extern void delete_pim_nbr           __P((pim_nbr_entry_t *nbr_delete));
+extern int receive_pim_join_prune    __P((u_int32 src, u_int32 dst,
+					  char *pim_message, int datalen));
+extern int send_pim_jp               __P((mrtentry_t *mrtentry_ptr, int action,
+					  vifi_t vifi, u_int32 target_addr,
+					  u_int16 holdtime));
+extern int receive_pim_assert        __P((u_int32 src, u_int32 dst,
+					  char *pim_message, int datalen));
+extern int send_pim_assert           __P((u_int32 source, u_int32 group,
+					  vifi_t vifi,
+					  mrtentry_t *mrtentry_ptr));
+extern void delete_pim_graft_entry   __P((mrtentry_t *mrtentry_ptr));
+extern int receive_pim_graft         __P((u_int32 src, u_int32 dst,
+					  char *pim_message, int datalen,
+					  int pimtype));
+#endif
+
+/* route.c */
+extern int    set_incoming           __P((srcentry_t *srcentry_ptr,
+					  int srctype));
+extern vifi_t get_iif                __P((struct sockaddr_in6 *source));
+extern pim_nbr_entry_t *find_pim6_nbr __P((struct sockaddr_in6 *source));
+extern int    add_sg_oif             __P((mrtentry_t *mrtentry_ptr,
+					  vifi_t vifi,
+					  u_int16 holdtime,
+					  int update_holdtime));
+extern void   add_leaf               __P((vifi_t vifi,
+					  struct sockaddr_in6 *source,
+					  struct sockaddr_in6 *group));
+extern void   delete_leaf            __P((vifi_t vifi,
+					  struct sockaddr_in6 *source,
+					  struct sockaddr_in6 *group));
+extern void   set_leaves             __P((mrtentry_t *mrtentry_ptr));
+extern int    change_interfaces      __P((mrtentry_t *mrtentry_ptr,
+					  vifi_t new_iif,
+					  if_set *new_pruned_oifs,
+					  if_set *new_leaves_,
+					  if_set *new_asserted_oifs));
+extern void   calc_oifs              __P((mrtentry_t *mrtentry_ptr,
+                                       if_set *oifs_ptr));
+extern void   process_kernel_call    __P((void));
+extern int    delete_vif_from_mrt    __P((vifi_t vifi));
+extern void   trigger_join_alert     __P((mrtentry_t *mrtentry_ptr));
+extern void   trigger_prune_alert    __P((mrtentry_t *mrtentry_ptr));
+
+
+/* routesock.c */
+extern int    k_req_incoming         __P((struct sockaddr_in6 *source,
+					  struct rpfctl *rpfp));
+#ifdef HAVE_ROUTING_SOCKETS
+extern int    init_routesock         __P((void));
+#endif /* HAVE_ROUTING_SOCKETS */
+
+#ifdef RSRR
+#define	gtable mrtentry
+#define	RSRR_NOTIFICATION_OK        TRUE
+#define	RSRR_NOTIFICATION_FALSE    FALSE
+
+/* rsrr.c */
+extern void             rsrr_init        __P((void));
+extern void             rsrr_clean       __P((void));
+extern void             rsrr_cache_send  __P((struct gtable *, int));
+extern void             rsrr_cache_clean __P((struct gtable *));
+extern void             rsrr_cache_bring_up __P((struct gtable *));
+#endif /* RSRR */
+
+/* timer.c */
+extern void init_timers                 __P((void));
+extern void age_vifs                    __P((void));
+extern void age_routes                  __P((void));
+extern int  clean_srclist               __P((void));
+
+/* trace.c */
+/* u_int is promoted u_char */
+extern void accept_mtrace __P((struct sockaddr_in6 *src,
+			       struct in6_addr *dst, struct in6_addr *group,
+			       int ifindex, char *data, u_int no, int datalen));
+
+/* vif.c */
+extern void    init_vifs               __P((void));
+extern void    stop_all_vifs           __P((void));
+extern void    check_vif_state         __P((void));
+extern vifi_t  local_address           __P((struct sockaddr_in6 *src));
+extern vifi_t  find_vif_direct         __P((struct sockaddr_in6 *src));
+extern vifi_t  find_vif_direct_local   __P((struct sockaddr_in6 *src));
+extern struct sockaddr_in6 *max_global_address __P((void));
+extern struct sockaddr_in6 *uv_global __P((vifi_t vifi));