1994-09-08 00:26:13 +00:00
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/*
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* The mrouted program is covered by the license in the accompanying file
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* named "LICENSE". Use of the mrouted program represents acceptance of
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* the terms and conditions listed in that file.
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*
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* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
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* Leland Stanford Junior University.
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*
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*
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1999-08-28 01:35:59 +00:00
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* $FreeBSD$
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1999-01-20 07:55:57 +00:00
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* defs.h,v 3.8.4.15 1998/03/01 02:51:42 fenner Exp
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1994-09-08 00:26:13 +00:00
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*/
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#include <stdio.h>
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1995-06-28 17:58:49 +00:00
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#include <stdlib.h>
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#include <unistd.h>
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1994-09-08 00:26:13 +00:00
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#include <ctype.h>
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#include <errno.h>
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#include <syslog.h>
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#include <signal.h>
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1995-06-28 17:58:49 +00:00
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#include <string.h>
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1994-09-08 00:26:13 +00:00
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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1996-01-06 21:10:30 +00:00
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#ifdef SYSV
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#include <sys/sockio.h>
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#endif
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1999-01-20 07:55:57 +00:00
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#ifdef _AIX
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#include <time.h>
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#endif
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1994-09-08 00:26:13 +00:00
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#include <sys/time.h>
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1999-01-20 07:55:57 +00:00
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#include <sys/uio.h>
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1994-09-08 00:26:13 +00:00
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#include <net/if.h>
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1997-01-03 20:19:50 +00:00
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#define rtentry kern_rtentry /* XXX !!! UGH */
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#include <net/route.h>
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#undef rtentry
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1994-09-08 00:26:13 +00:00
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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1999-01-20 07:55:57 +00:00
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#include <netinet/ip_icmp.h>
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1994-09-08 00:26:13 +00:00
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#include <netinet/igmp.h>
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1999-01-20 07:55:57 +00:00
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#ifdef __FreeBSD__ /* sigh */
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#include <osreldate.h>
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#if __FreeBSD_version >= 220000
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#define rtentry kernel_rtentry
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#include <net/route.h>
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#undef rtentry
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#endif
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#endif
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1994-09-08 00:26:13 +00:00
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#include <netinet/ip_mroute.h>
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1995-06-13 18:05:16 +00:00
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#ifdef RSRR
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#include <sys/un.h>
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#endif /* RSRR */
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/*XXX*/
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typedef u_int u_int32;
|
1994-09-08 00:26:13 +00:00
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1995-06-28 17:58:49 +00:00
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#ifndef __P
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#ifdef __STDC__
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#define __P(x) x
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#else
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#define __P(x) ()
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#endif
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#endif
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typedef void (*cfunc_t) __P((void *));
|
1996-01-06 21:10:30 +00:00
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typedef void (*ihfunc_t) __P((int, fd_set *));
|
1995-06-28 17:58:49 +00:00
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1994-09-08 00:26:13 +00:00
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#include "dvmrp.h"
|
1999-01-20 07:55:57 +00:00
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#include "igmpv2.h"
|
1994-09-08 00:26:13 +00:00
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#include "vif.h"
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#include "route.h"
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#include "prune.h"
|
1995-06-13 18:05:16 +00:00
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#include "pathnames.h"
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#ifdef RSRR
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#include "rsrr.h"
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#include "rsrr_var.h"
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#endif /* RSRR */
|
1994-09-08 00:26:13 +00:00
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/*
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* Miscellaneous constants and macros.
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*/
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#define FALSE 0
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#define TRUE 1
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#define EQUAL(s1, s2) (strcmp((s1), (s2)) == 0)
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#define TIMER_INTERVAL ROUTE_MAX_REPORT_DELAY
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#define PROTOCOL_VERSION 3 /* increment when packet format/content changes */
|
1999-01-20 07:55:57 +00:00
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#define MROUTED_VERSION 9 /* not in DVMRP packets at all */
|
1994-09-08 00:26:13 +00:00
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|
1999-01-20 07:55:57 +00:00
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#define DVMRP_CONSTANT 0x000eff00 /* constant portion of 'group' field */
|
1994-09-08 00:26:13 +00:00
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|
1999-01-20 07:55:57 +00:00
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#define MROUTED_LEVEL (DVMRP_CONSTANT | PROTOCOL_VERSION)
|
1994-09-08 00:26:13 +00:00
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/* for IGMP 'group' field of DVMRP messages */
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|
1995-06-13 18:05:16 +00:00
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#define LEAF_FLAGS (( vifs_with_neighbors == 1 ) ? 0x010000 : 0)
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/* more for IGMP 'group' field of DVMRP messages */
|
1999-01-20 07:55:57 +00:00
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|
1994-09-08 00:26:13 +00:00
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|
#define DEL_RTE_GROUP 0
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#define DEL_ALL_ROUTES 1
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/* for Deleting kernel table entries */
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|
1995-06-13 18:05:16 +00:00
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/* obnoxious gcc gives an extraneous warning about this constant... */
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#if defined(__STDC__) || defined(__GNUC__)
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#define JAN_1970 2208988800UL /* 1970 - 1900 in seconds */
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#else
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#define JAN_1970 2208988800L /* 1970 - 1900 in seconds */
|
1995-06-28 17:58:49 +00:00
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#define const /**/
|
1995-06-13 18:05:16 +00:00
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|
#endif
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#ifdef RSRR
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#define BIT_ZERO(X) ((X) = 0)
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|
#define BIT_SET(X,n) ((X) |= 1 << (n))
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|
#define BIT_CLR(X,n) ((X) &= ~(1 << (n)))
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#define BIT_TST(X,n) ((X) & 1 << (n))
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#endif /* RSRR */
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|
1996-01-06 21:10:30 +00:00
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|
#ifdef SYSV
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#define bcopy(a, b, c) memcpy(b, a, c)
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|
#define bzero(s, n) memset((s), 0, (n))
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|
#define setlinebuf(s) setvbuf(s, NULL, _IOLBF, 0)
|
1999-01-20 07:55:57 +00:00
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|
#endif
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|
#if defined(_AIX) || (defined(BSD) && (BSD >= 199103))
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#define HAVE_SA_LEN
|
1996-01-06 21:10:30 +00:00
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#endif
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1994-09-08 00:26:13 +00:00
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/*
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* External declarations for global variables and functions.
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*/
|
1996-01-06 21:10:30 +00:00
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#define RECV_BUF_SIZE 8192
|
1995-06-13 18:05:16 +00:00
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extern char *recv_buf;
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extern char *send_buf;
|
1994-09-08 00:26:13 +00:00
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extern int igmp_socket;
|
1995-06-13 18:05:16 +00:00
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#ifdef RSRR
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extern int rsrr_socket;
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#endif /* RSRR */
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extern u_int32 allhosts_group;
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extern u_int32 allrtrs_group;
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extern u_int32 dvmrp_group;
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extern u_int32 dvmrp_genid;
|
1994-09-08 00:26:13 +00:00
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|
1999-01-20 07:55:57 +00:00
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#define IF_DEBUG(l) if (debug && debug & (l))
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#define DEBUG_PKT 0x0001
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#define DEBUG_PRUNE 0x0002
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#define DEBUG_ROUTE 0x0004
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#define DEBUG_PEER 0x0008
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#define DEBUG_CACHE 0x0010
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#define DEBUG_TIMEOUT 0x0020
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#define DEBUG_IF 0x0040
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#define DEBUG_MEMBER 0x0080
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#define DEBUG_TRACE 0x0100
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|
#define DEBUG_IGMP 0x0200
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|
#define DEBUG_RTDETAIL 0x0400
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|
#define DEBUG_KERN 0x0800
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#define DEBUG_RSRR 0x1000
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#define DEBUG_ICMP 0x2000
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#define DEFAULT_DEBUG 0x02de /* default if "-d" given without value */
|
1994-09-08 00:26:13 +00:00
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extern int debug;
|
1999-01-20 07:55:57 +00:00
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|
extern int did_final_init;
|
1994-09-08 00:26:13 +00:00
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extern int routes_changed;
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extern int delay_change_reports;
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extern unsigned nroutes;
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extern struct uvif uvifs[MAXVIFS];
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extern vifi_t numvifs;
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extern int vifs_down;
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extern int udp_socket;
|
1995-06-13 18:05:16 +00:00
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extern int vifs_with_neighbors;
|
1994-09-08 00:26:13 +00:00
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extern char s1[];
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extern char s2[];
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extern char s3[];
|
1995-06-13 18:05:16 +00:00
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|
extern char s4[];
|
1994-09-08 00:26:13 +00:00
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|
1995-06-13 18:05:16 +00:00
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#if !(defined(BSD) && (BSD >= 199103))
|
1994-09-08 00:26:13 +00:00
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extern int errno;
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extern int sys_nerr;
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extern char * sys_errlist[];
|
1994-09-08 02:51:37 +00:00
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|
#endif
|
1994-09-08 00:26:13 +00:00
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|
1996-01-06 21:10:30 +00:00
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#ifdef OLD_KERNEL
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#define MRT_INIT DVMRP_INIT
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#define MRT_DONE DVMRP_DONE
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#define MRT_ADD_VIF DVMRP_ADD_VIF
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#define MRT_DEL_VIF DVMRP_DEL_VIF
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#define MRT_ADD_MFC DVMRP_ADD_MFC
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#define MRT_DEL_MFC DVMRP_DEL_MFC
|
1996-11-11 03:50:15 +00:00
|
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|
#endif
|
1996-01-06 21:10:30 +00:00
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|
1996-11-11 03:50:15 +00:00
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|
#ifndef IGMP_PIM
|
1996-01-06 21:10:30 +00:00
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#define IGMP_PIM 0x14
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#endif
|
1999-01-20 07:55:57 +00:00
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|
#ifndef IPPROTO_IPIP
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#define IPPROTO_IPIP 4
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#endif
|
1996-01-06 21:10:30 +00:00
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|
1999-01-20 07:55:57 +00:00
|
|
|
/*
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|
|
* The original multicast releases defined
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* IGMP_HOST_{MEMBERSHIP_QUERY,MEMBERSHIP_REPORT,NEW_MEMBERSHIP_REPORT
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* ,LEAVE_MESSAGE}. Later releases removed the HOST and inserted
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* the IGMP version number. NetBSD inserted the version number in
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* a different way. mrouted uses the new names, so we #define them
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* to the old ones if needed.
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*/
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#if !defined(IGMP_MEMBERSHIP_QUERY) && defined(IGMP_HOST_MEMBERSHIP_QUERY)
|
1996-11-11 03:50:15 +00:00
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|
#define IGMP_MEMBERSHIP_QUERY IGMP_HOST_MEMBERSHIP_QUERY
|
1999-01-20 07:55:57 +00:00
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|
#define IGMP_V2_LEAVE_GROUP IGMP_HOST_LEAVE_MESSAGE
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|
#endif
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|
#ifndef IGMP_V1_MEMBERSHIP_REPORT
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|
|
#ifdef IGMP_HOST_MEMBERSHIP_REPORT
|
1996-11-11 03:50:15 +00:00
|
|
|
#define IGMP_V1_MEMBERSHIP_REPORT IGMP_HOST_MEMBERSHIP_REPORT
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|
#define IGMP_V2_MEMBERSHIP_REPORT IGMP_HOST_NEW_MEMBERSHIP_REPORT
|
1999-01-20 07:55:57 +00:00
|
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|
#endif
|
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|
|
#ifdef IGMP_v1_HOST_MEMBERSHIP_REPORT
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|
#define IGMP_V1_MEMBERSHIP_REPORT IGMP_v1_HOST_MEMBERSHIP_REPORT
|
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|
#define IGMP_V2_MEMBERSHIP_REPORT IGMP_v2_HOST_MEMBERSHIP_REPORT
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|
#endif
|
1996-11-11 03:50:15 +00:00
|
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|
#endif
|
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|
1999-01-20 07:55:57 +00:00
|
|
|
/*
|
|
|
|
|
* NetBSD also renamed the mtrace types.
|
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|
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|
*/
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|
|
#if !defined(IGMP_MTRACE_RESP) && defined(IGMP_MTRACE_REPLY)
|
|
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|
|
#define IGMP_MTRACE_RESP IGMP_MTRACE_REPLY
|
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|
#define IGMP_MTRACE IGMP_MTRACE_QUERY
|
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|
#endif
|
1996-11-11 03:50:15 +00:00
|
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|
1995-06-28 17:58:49 +00:00
|
|
|
/* main.c */
|
1999-01-20 07:55:57 +00:00
|
|
|
extern char * scaletime __P((u_long));
|
1995-06-28 17:58:49 +00:00
|
|
|
extern void log __P((int, int, char *, ...));
|
1999-01-20 07:55:57 +00:00
|
|
|
extern int register_input_handler __P((int, ihfunc_t));
|
1995-06-28 17:58:49 +00:00
|
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|
|
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|
|
/* igmp.c */
|
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|
|
|
extern void init_igmp __P((void));
|
1999-01-20 07:55:57 +00:00
|
|
|
extern void accept_igmp __P((int));
|
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|
extern void build_igmp __P((u_int32, u_int32, int, int, u_int32,
|
|
|
|
|
int));
|
|
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|
|
extern void send_igmp __P((u_int32, u_int32, int, int, u_int32,
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|
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|
|
int));
|
|
|
|
|
extern char * igmp_packet_kind __P((u_int, u_int));
|
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|
|
extern int igmp_debug_kind __P((u_int, u_int));
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|
|
/* icmp.c */
|
|
|
|
|
extern void init_icmp __P((void));
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|
|
/* ipip.c */
|
|
|
|
|
extern void init_ipip __P((void));
|
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|
extern void init_ipip_on_vif __P((struct uvif *));
|
|
|
|
|
extern void send_ipip __P((u_int32, u_int32, int, int, u_int32,
|
|
|
|
|
int, struct uvif *));
|
1995-06-28 17:58:49 +00:00
|
|
|
|
|
|
|
|
/* callout.c */
|
|
|
|
|
extern void callout_init __P((void));
|
1999-01-20 07:55:57 +00:00
|
|
|
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 int timer_clearTimer __P((int));
|
|
|
|
|
extern int timer_leftTimer __P((int));
|
1995-06-28 17:58:49 +00:00
|
|
|
|
|
|
|
|
/* route.c */
|
|
|
|
|
extern void init_routes __P((void));
|
|
|
|
|
extern void start_route_updates __P((void));
|
1999-01-20 07:55:57 +00:00
|
|
|
extern void update_route __P((u_int32, u_int32, u_int, u_int32,
|
|
|
|
|
vifi_t, struct listaddr *));
|
1995-06-28 17:58:49 +00:00
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extern void age_routes __P((void));
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extern void expire_all_routes __P((void));
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extern void free_all_routes __P((void));
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1999-01-20 07:55:57 +00:00
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extern void accept_probe __P((u_int32, u_int32, char *, int,
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u_int32));
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extern void accept_report __P((u_int32, u_int32, char *, int,
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u_int32));
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1995-06-28 17:58:49 +00:00
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extern struct rtentry * determine_route __P((u_int32 src));
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1999-01-20 07:55:57 +00:00
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extern void report __P((int, vifi_t, u_int32));
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extern void report_to_all_neighbors __P((int));
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1995-06-28 17:58:49 +00:00
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extern int report_next_chunk __P((void));
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1999-01-20 07:55:57 +00:00
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extern void blaster_alloc __P((vifi_t));
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extern void add_vif_to_routes __P((vifi_t));
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extern void delete_vif_from_routes __P((vifi_t));
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extern void add_neighbor_to_routes __P((vifi_t, int));
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extern void delete_neighbor_from_routes __P((u_int32,
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vifi_t, int));
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1995-06-28 17:58:49 +00:00
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extern void dump_routes __P((FILE *fp));
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/* vif.c */
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extern void init_vifs __P((void));
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1999-01-20 07:55:57 +00:00
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extern void zero_vif __P((struct uvif *, int));
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extern void init_installvifs __P((void));
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1995-06-28 17:58:49 +00:00
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extern void check_vif_state __P((void));
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1999-01-20 07:55:57 +00:00
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extern void send_on_vif __P((struct uvif *, u_int32, int, int));
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extern vifi_t find_vif __P((u_int32, u_int32));
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1995-06-28 17:58:49 +00:00
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extern void age_vifs __P((void));
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1999-01-20 07:55:57 +00:00
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extern void dump_vifs __P((FILE *));
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1995-06-28 17:58:49 +00:00
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extern void stop_all_vifs __P((void));
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1999-01-20 07:55:57 +00:00
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extern struct listaddr *neighbor_info __P((vifi_t, u_int32));
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extern void accept_group_report __P((u_int32, u_int32,
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u_int32, int));
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1995-06-28 17:58:49 +00:00
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extern void query_groups __P((void));
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extern void probe_for_neighbors __P((void));
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1999-01-20 07:55:57 +00:00
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extern struct listaddr *update_neighbor __P((vifi_t, u_int32, int, char *, int,
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u_int32));
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extern void accept_neighbor_request __P((u_int32, u_int32));
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extern void accept_neighbor_request2 __P((u_int32, u_int32));
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extern void accept_info_request __P((u_int32, u_int32,
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u_char *, int));
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extern void accept_info_reply __P((u_int32, u_int32,
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u_char *, int));
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extern void accept_neighbors __P((u_int32, u_int32,
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u_char *, int, u_int32));
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extern void accept_neighbors2 __P((u_int32, u_int32,
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u_char *, int, u_int32));
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extern void accept_leave_message __P((u_int32, u_int32,
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u_int32));
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extern void accept_membership_query __P((u_int32, u_int32,
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u_int32, int));
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1995-06-28 17:58:49 +00:00
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/* config.c */
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extern void config_vifs_from_kernel __P((void));
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/* cfparse.y */
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extern void config_vifs_from_file __P((void));
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/* inet.c */
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1999-01-20 07:55:57 +00:00
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extern int inet_valid_host __P((u_int32));
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extern int inet_valid_mask __P((u_int32));
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extern int inet_valid_subnet __P((u_int32, u_int32));
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extern char * inet_fmt __P((u_int32, char *));
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extern char * inet_fmts __P((u_int32, u_int32, char *));
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extern u_int32 inet_parse __P((char *, int));
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extern int inet_cksum __P((u_short *, u_int));
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1995-06-28 17:58:49 +00:00
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/* prune.c */
|
1994-09-08 00:26:13 +00:00
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extern unsigned kroutes;
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1999-01-20 07:55:57 +00:00
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extern void determine_forwvifs __P((struct gtable *));
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extern void send_prune_or_graft __P((struct gtable *));
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extern void add_table_entry __P((u_int32, u_int32));
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extern void del_table_entry __P((struct rtentry *,
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u_int32, u_int));
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extern void update_table_entry __P((struct rtentry *, u_int32));
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extern int find_src_grp __P((u_int32, u_int32, u_int32));
|
1995-06-28 17:58:49 +00:00
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extern void init_ktable __P((void));
|
1999-01-20 07:55:57 +00:00
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extern void steal_sources __P((struct rtentry *));
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extern void reset_neighbor_state __P((vifi_t, u_int32));
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extern int grplst_mem __P((vifi_t, u_int32));
|
1995-06-28 17:58:49 +00:00
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extern void free_all_prunes __P((void));
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extern void age_table_entry __P((void));
|
1999-01-20 07:55:57 +00:00
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|
extern void dump_cache __P((FILE *));
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extern void update_lclgrp __P((vifi_t, u_int32));
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extern void delete_lclgrp __P((vifi_t, u_int32));
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extern void chkgrp_graft __P((vifi_t, u_int32));
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extern void accept_prune __P((u_int32, u_int32, char *, int));
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|
extern void accept_graft __P((u_int32, u_int32, char *, int));
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|
extern void accept_g_ack __P((u_int32, u_int32, char *, int));
|
1995-06-28 17:58:49 +00:00
|
|
|
/* u_int is promoted u_char */
|
1999-01-20 07:55:57 +00:00
|
|
|
extern void accept_mtrace __P((u_int32, u_int32,
|
|
|
|
|
u_int32, char *, u_int, int));
|
1995-06-28 17:58:49 +00:00
|
|
|
|
|
|
|
|
/* kern.c */
|
1999-01-20 07:55:57 +00:00
|
|
|
extern void k_set_rcvbuf __P((int, int));
|
|
|
|
|
extern void k_hdr_include __P((int));
|
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|
|
extern void k_set_ttl __P((int));
|
|
|
|
|
extern void k_set_loop __P((int));
|
|
|
|
|
extern void k_set_if __P((u_int32));
|
|
|
|
|
extern void k_join __P((u_int32, u_int32));
|
|
|
|
|
extern void k_leave __P((u_int32, u_int32));
|
1995-06-28 17:58:49 +00:00
|
|
|
extern void k_init_dvmrp __P((void));
|
|
|
|
|
extern void k_stop_dvmrp __P((void));
|
1999-01-20 07:55:57 +00:00
|
|
|
extern void k_add_vif __P((vifi_t, struct uvif *));
|
|
|
|
|
extern void k_del_vif __P((vifi_t));
|
|
|
|
|
extern void k_add_rg __P((u_int32, struct gtable *));
|
|
|
|
|
extern int k_del_rg __P((u_int32, struct gtable *));
|
1995-06-28 17:58:49 +00:00
|
|
|
extern int k_get_version __P((void));
|
1994-09-08 00:26:13 +00:00
|
|
|
|
1995-06-13 18:05:16 +00:00
|
|
|
#ifdef SNMP
|
1995-06-28 17:58:49 +00:00
|
|
|
/* prune.c */
|
1999-01-20 07:55:57 +00:00
|
|
|
extern struct gtable * find_grp __P((u_int32));
|
|
|
|
|
extern struct stable * find_grp_src __P((struct gtable *, u_int32));
|
|
|
|
|
extern int next_grp_src_mask __P((struct gtable **,
|
|
|
|
|
struct stable **, u_int32,
|
|
|
|
|
u_int32, u_int32));
|
|
|
|
|
extern void refresh_sg __P((struct sioc_sg_req *, struct gtable *,
|
|
|
|
|
struct stable *));
|
|
|
|
|
extern int next_child __P((struct gtable **, struct stable **,
|
|
|
|
|
u_int32, u_int32, u_int32,
|
|
|
|
|
vifi_t *));
|
|
|
|
|
|
|
|
|
|
/* route.c */
|
|
|
|
|
extern struct rtentry * snmp_find_route __P((u_int32, u_int32));
|
|
|
|
|
extern int next_route __P((struct rtentry **, u_int32, u_int32));
|
|
|
|
|
extern int next_route_child __P((struct rtentry **,
|
|
|
|
|
u_int32, u_int32, vifi_t *));
|
1995-06-13 18:05:16 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef RSRR
|
1995-06-28 17:58:49 +00:00
|
|
|
/* prune.c */
|
1995-06-13 18:05:16 +00:00
|
|
|
extern struct gtable *kernel_table;
|
|
|
|
|
extern struct gtable *gtp;
|
1995-06-28 17:58:49 +00:00
|
|
|
|
|
|
|
|
/* rsrr.c */
|
|
|
|
|
extern void rsrr_init __P((void));
|
|
|
|
|
extern void rsrr_clean __P((void));
|
1999-01-20 07:55:57 +00:00
|
|
|
extern void rsrr_cache_send __P((struct gtable *, int));
|
|
|
|
|
extern void rsrr_cache_clean __P((struct gtable *));
|
1995-06-13 18:05:16 +00:00
|
|
|
#endif /* RSRR */
|
