2009-10-26 05:53:15 +03:00
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/* $NetBSD: defs.h,v 1.25 2009/10/26 02:53:15 christos Exp $ */
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1995-03-18 17:54:19 +03:00
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1993-03-21 12:45:37 +03:00
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/*
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1994-05-13 12:02:16 +04:00
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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1993-03-21 12:45:37 +03:00
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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1998-10-25 17:56:06 +03:00
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* must display the following acknowledgment:
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1993-03-21 12:45:37 +03:00
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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1995-03-18 17:54:19 +03:00
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* @(#)defs.h 8.1 (Berkeley) 6/5/93
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2001-03-11 02:52:45 +03:00
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*
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* $FreeBSD$
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2002-11-30 07:04:23 +03:00
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* "Revision: 2.27 "
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1993-03-21 12:45:37 +03:00
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*/
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1996-08-10 05:28:58 +04:00
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/* Definitions for RIPv2 routing process.
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*
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* This code is based on the 4.4BSD `routed` daemon, with extensions to
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* support:
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* RIPv2, including variable length subnet masks.
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* Router Discovery
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* aggregate routes in the kernel tables.
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* aggregate advertised routes.
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* maintain spare routes for faster selection of another gateway
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* when the current gateway dies.
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* timers on routes with second granularity so that selection
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* of a new route does not wait 30-60 seconds.
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* tolerance of static routes.
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* tell the kernel hop counts
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* do not advertise if ipforwarding=0
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*
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1998-10-25 17:56:06 +03:00
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* The vestigial support for other protocols has been removed. There
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1996-08-10 05:28:58 +04:00
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* is no likelihood that IETF RIPv1 or RIPv2 will ever be used with
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* other protocols. The result is far smaller, faster, cleaner, and
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* perhaps understandable.
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*
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* The accumulation of special flags and kludges added over the many
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* years have been simplified and integrated.
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1993-03-21 12:45:37 +03:00
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*/
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1996-08-10 05:28:58 +04:00
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#include <stdio.h>
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#include <netdb.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#ifdef sgi
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#include <strings.h>
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#include <bstring.h>
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#endif
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#include <stdarg.h>
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#include <syslog.h>
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#include <time.h>
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1998-10-25 17:56:06 +03:00
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#include <sys/cdefs.h>
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1997-02-04 01:02:51 +03:00
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#include <sys/time.h>
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1996-08-10 05:28:58 +04:00
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#include <sys/types.h>
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1993-03-21 12:45:37 +03:00
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#include <sys/param.h>
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1996-08-10 05:28:58 +04:00
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#include <sys/ioctl.h>
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#include <sys/sysctl.h>
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1993-03-21 12:45:37 +03:00
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#include <sys/socket.h>
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1996-09-24 20:24:12 +04:00
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#ifdef sgi
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1998-06-02 22:02:55 +04:00
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#define _USER_ROUTE_TREE
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1996-08-10 05:28:58 +04:00
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#include <net/radix.h>
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1996-09-24 20:24:12 +04:00
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#else
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#include "radix.h"
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1999-02-23 13:47:39 +03:00
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#define UNUSED __attribute__((unused))
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#define PATTRIB(f,l) __attribute__((format (printf,f,l)))
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1996-08-10 05:28:58 +04:00
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#endif
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1996-09-24 20:24:12 +04:00
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#include <net/if.h>
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#include <net/route.h>
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1996-08-10 05:28:58 +04:00
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#include <net/if_dl.h>
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1993-03-21 12:45:37 +03:00
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#include <netinet/in.h>
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1994-12-18 08:43:48 +03:00
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#include <arpa/inet.h>
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1996-08-10 05:28:58 +04:00
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#define RIPVERSION RIPv2
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#include <protocols/routed.h>
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1993-03-21 12:45:37 +03:00
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2001-03-11 02:52:45 +03:00
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#ifndef __RCSID
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#define __RCSID(_s) static const char rcsid[] UNUSED = _s
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#endif
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#ifndef __COPYRIGHT
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#define __COPYRIGHT(_s) static const char copyright[] UNUSED = _s
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#endif
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1998-10-25 17:56:06 +03:00
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1996-08-10 05:28:58 +04:00
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/* Type of an IP address.
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* Some systems do not like to pass structures, so do not use in_addr.
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* Some systems think a long has 64 bits, which would be a gross waste.
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* So define it here so it can be changed for the target system.
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* It should be defined somewhere netinet/in.h, but it is not.
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*/
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#ifdef sgi
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1998-10-25 17:56:06 +03:00
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#define naddr u_int32_t
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1996-08-10 05:28:58 +04:00
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#elif defined (__NetBSD__)
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#define naddr u_int32_t
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#define _HAVE_SA_LEN
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#define _HAVE_SIN_LEN
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#else
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#define naddr u_long
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#define _HAVE_SA_LEN
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#define _HAVE_SIN_LEN
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#endif
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2001-01-15 16:19:12 +03:00
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/* Turn on if IP_{ADD,DROP}_MEMBERSHIP and IP_MULTICAST_IF considers address
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* within 0.0.0.0/8 as interface index.
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*/
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#ifdef __NetBSD__
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#define MCAST_IFINDEX
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#endif
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1996-08-10 05:28:58 +04:00
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/* Turn on if IP_DROP_MEMBERSHIP and IP_ADD_MEMBERSHIP do not look at
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* the dstaddr of point-to-point interfaces.
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2002-11-30 07:04:23 +03:00
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* #define MCAST_PPP_BUG
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1996-08-10 05:28:58 +04:00
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*/
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2001-01-15 16:19:12 +03:00
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#ifdef MCAST_IFINDEX
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#undef MCAST_PPP_BUG
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1997-02-04 01:02:51 +03:00
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#endif
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1996-08-10 05:28:58 +04:00
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1997-02-04 01:02:51 +03:00
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#define DAY (24*60*60)
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#define NEVER DAY /* a long time */
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1996-08-10 05:28:58 +04:00
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#define EPOCH NEVER /* bias time by this to avoid <0 */
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/* Scan the kernel regularly to see if any interfaces have appeared or been
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* turned off. These must be less than STALE_TIME.
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*/
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#define CHECK_BAD_INTERVAL 5 /* when an interface is known bad */
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#define CHECK_ACT_INTERVAL 30 /* when advertising */
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#define CHECK_QUIET_INTERVAL 300 /* when not */
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#define LIM_SEC(s,l) ((s).tv_sec = MIN((s).tv_sec, (l)))
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1997-02-04 01:02:51 +03:00
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/* Metric used for fake default routes. It ought to be 15, but when
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* processing advertised routes, previous versions of `routed` added
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* to the received metric and discarded the route if the total was 16
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* or larger.
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*/
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#define FAKE_METRIC (HOPCNT_INFINITY-2)
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1996-08-10 05:28:58 +04:00
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/* Router Discovery parameters */
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#ifndef sgi
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#define INADDR_ALLROUTERS_GROUP 0xe0000002 /* 224.0.0.2 */
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#endif
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#define MaxMaxAdvertiseInterval 1800
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#define MinMaxAdvertiseInterval 4
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#define DefMaxAdvertiseInterval 600
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#define DEF_PreferenceLevel 0
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#define MIN_PreferenceLevel 0x80000000
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#define MAX_INITIAL_ADVERT_INTERVAL 16
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#define MAX_INITIAL_ADVERTS 3
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#define MAX_RESPONSE_DELAY 2
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#define MAX_SOLICITATION_DELAY 1
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#define SOLICITATION_INTERVAL 3
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#define MAX_SOLICITATIONS 3
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1997-02-04 01:02:51 +03:00
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/* Bloated packet size for systems that simply add authentication to
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* full-sized packets
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*/
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#define OVER_MAXPACKETSIZE (MAXPACKETSIZE+sizeof(struct netinfo)*2)
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1996-08-10 05:28:58 +04:00
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/* typical packet buffers */
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union pkt_buf {
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1997-02-04 01:02:51 +03:00
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char packet[OVER_MAXPACKETSIZE*2];
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1996-08-10 05:28:58 +04:00
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struct rip rip;
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};
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1998-06-02 22:02:55 +04:00
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#define GNAME_LEN 64 /* assumed=64 in parms.c */
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/* bigger than IFNAMSIZ, with room for "external()" or "remote()" */
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#define IF_NAME_LEN (GNAME_LEN+15)
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1996-08-10 05:28:58 +04:00
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1997-02-04 01:02:51 +03:00
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/* No more routes than this, to protect ourself in case something goes
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* whacko and starts broadcasting zillions of bogus routes.
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1996-09-24 20:24:12 +04:00
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*/
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#define MAX_ROUTES (128*1024)
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extern int total_routes;
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1996-08-10 05:28:58 +04:00
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/* Main, daemon routing table structure
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*/
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struct rt_entry {
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struct radix_node rt_nodes[2]; /* radix tree glue */
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u_int rt_state;
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# define RS_IF 0x001 /* for network interface */
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# define RS_NET_INT 0x002 /* authority route */
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# define RS_NET_SYN 0x004 /* fake net route for subnet */
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# define RS_NO_NET_SYN (RS_LOCAL | RS_LOCAL | RS_IF)
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# define RS_SUBNET 0x008 /* subnet route from any source */
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# define RS_LOCAL 0x010 /* loopback for pt-to-pt */
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# define RS_MHOME 0x020 /* from -m */
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# define RS_STATIC 0x040 /* from the kernel */
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# define RS_RDISC 0x080 /* from router discovery */
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struct sockaddr_in rt_dst_sock;
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naddr rt_mask;
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struct rt_spare {
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struct interface *rts_ifp;
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naddr rts_gate; /* forward packets here */
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naddr rts_router; /* on the authority of this router */
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char rts_metric;
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u_short rts_tag;
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time_t rts_time; /* timer to junk stale routes */
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1998-06-02 22:02:55 +04:00
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u_int rts_de_ag; /* de-aggregation level */
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1996-08-10 05:28:58 +04:00
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#define NUM_SPARES 4
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} rt_spares[NUM_SPARES];
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u_int rt_seqno; /* when last changed */
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char rt_poison_metric; /* to notice maximum recently */
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time_t rt_poison_time; /* advertised metric */
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};
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1998-06-02 22:02:55 +04:00
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#define rt_dst rt_dst_sock.sin_addr.s_addr
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#define rt_ifp rt_spares[0].rts_ifp
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#define rt_gate rt_spares[0].rts_gate
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#define rt_router rt_spares[0].rts_router
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#define rt_metric rt_spares[0].rts_metric
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#define rt_tag rt_spares[0].rts_tag
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#define rt_time rt_spares[0].rts_time
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#define rt_de_ag rt_spares[0].rts_de_ag
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1996-08-10 05:28:58 +04:00
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#define HOST_MASK 0xffffffff
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#define RT_ISHOST(rt) ((rt)->rt_mask == HOST_MASK)
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/* age all routes that
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* are not from -g, -m, or static routes from the kernel
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* not unbroken interface routes
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* but not broken interfaces
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* nor non-passive, remote interfaces that are not aliases
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* (i.e. remote & metric=0)
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*/
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1996-09-24 20:24:12 +04:00
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#define AGE_RT(rt_state,ifp) (0 == ((rt_state) & (RS_MHOME | RS_STATIC \
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| RS_NET_SYN | RS_RDISC)) \
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&& (!((rt_state) & RS_IF) \
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|| (ifp) == 0 \
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|| (((ifp)->int_state & IS_REMOTE) \
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&& !((ifp)->int_state & IS_PASSIVE))))
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1996-08-10 05:28:58 +04:00
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/* true if A is better than B
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* Better if
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* - A is not a poisoned route
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* - and A is not stale
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* - and A has a shorter path
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* - or is the router speaking for itself
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* - or the current route is equal but stale
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* - or it is a host route advertised by a system for itself
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1993-03-21 12:45:37 +03:00
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*/
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1997-02-04 01:02:51 +03:00
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#define BETTER_LINK(rt,A,B) ((A)->rts_metric < HOPCNT_INFINITY \
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1996-08-10 05:28:58 +04:00
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&& now_stale <= (A)->rts_time \
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&& ((A)->rts_metric < (B)->rts_metric \
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|| ((A)->rts_gate == (A)->rts_router \
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&& (B)->rts_gate != (B)->rts_router) \
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|| ((A)->rts_metric == (B)->rts_metric \
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&& now_stale > (B)->rts_time) \
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|| (RT_ISHOST(rt) \
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&& (rt)->rt_dst == (A)->rts_router \
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&& (A)->rts_metric == (B)->rts_metric)))
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/* An "interface" is similar to a kernel ifnet structure, except it also
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* handles "logical" or "IS_REMOTE" interfaces (remote gateways).
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*/
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struct interface {
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1997-02-04 01:02:51 +03:00
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struct interface *int_next, **int_prev;
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struct interface *int_ahash, **int_ahash_prev;
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struct interface *int_bhash, **int_bhash_prev;
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struct interface *int_rlink, **int_rlink_prev;
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struct interface *int_nhash, **int_nhash_prev;
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1998-06-02 22:02:55 +04:00
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char int_name[IF_NAME_LEN+1];
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1996-08-10 05:28:58 +04:00
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u_short int_index;
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naddr int_addr; /* address on this host (net order) */
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naddr int_brdaddr; /* broadcast address (n) */
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naddr int_dstaddr; /* other end of pt-to-pt link (n) */
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naddr int_net; /* working network # (host order)*/
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naddr int_mask; /* working net mask (host order) */
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naddr int_ripv1_mask; /* for inferring a mask (n) */
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naddr int_std_addr; /* class A/B/C address (n) */
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|
|
naddr int_std_net; /* class A/B/C network (h) */
|
|
|
|
naddr int_std_mask; /* class A/B/C netmask (h) */
|
|
|
|
int int_rip_sock; /* for queries */
|
1996-09-24 20:24:12 +04:00
|
|
|
int int_if_flags; /* some bits copied from kernel */
|
1996-08-10 05:28:58 +04:00
|
|
|
u_int int_state;
|
|
|
|
time_t int_act_time; /* last thought healthy */
|
1997-02-04 01:02:51 +03:00
|
|
|
time_t int_query_time;
|
1996-08-10 05:28:58 +04:00
|
|
|
u_short int_transitions; /* times gone up-down */
|
|
|
|
char int_metric;
|
2002-11-30 07:04:23 +03:00
|
|
|
u_char int_d_metric; /* for faked default route */
|
|
|
|
u_char int_adj_inmetric; /* adjust advertised metrics */
|
|
|
|
u_char int_adj_outmetric; /* instead of interface metric */
|
1996-08-10 05:28:58 +04:00
|
|
|
struct int_data {
|
|
|
|
u_int ipackets; /* previous network stats */
|
|
|
|
u_int ierrors;
|
|
|
|
u_int opackets;
|
|
|
|
u_int oerrors;
|
|
|
|
#ifdef sgi
|
|
|
|
u_int odrops;
|
|
|
|
#endif
|
|
|
|
time_t ts; /* timestamp on network stats */
|
|
|
|
} int_data;
|
1997-02-04 01:02:51 +03:00
|
|
|
# define MAX_AUTH_KEYS 5
|
|
|
|
struct auth { /* authentication info */
|
1998-10-25 17:56:06 +03:00
|
|
|
u_int16_t type;
|
1999-02-23 13:47:39 +03:00
|
|
|
u_char key[RIP_AUTH_PW_LEN];
|
1997-02-04 01:02:51 +03:00
|
|
|
u_char keyid;
|
|
|
|
time_t start, end;
|
|
|
|
} int_auth[MAX_AUTH_KEYS];
|
1998-06-02 22:02:55 +04:00
|
|
|
/* router discovery parameters */
|
|
|
|
int int_rdisc_pref; /* signed preference to advertise */
|
1996-08-10 05:28:58 +04:00
|
|
|
int int_rdisc_int; /* MaxAdvertiseInterval */
|
|
|
|
int int_rdisc_cnt;
|
|
|
|
struct timeval int_rdisc_timer;
|
|
|
|
};
|
|
|
|
|
1996-09-24 20:24:12 +04:00
|
|
|
/* bits in int_state */
|
1996-08-10 05:28:58 +04:00
|
|
|
#define IS_ALIAS 0x0000001 /* interface alias */
|
|
|
|
#define IS_SUBNET 0x0000002 /* interface on subnetted network */
|
|
|
|
#define IS_REMOTE 0x0000004 /* interface is not on this machine */
|
|
|
|
#define IS_PASSIVE 0x0000008 /* remote and does not do RIP */
|
|
|
|
#define IS_EXTERNAL 0x0000010 /* handled by EGP or something */
|
|
|
|
#define IS_CHECKED 0x0000020 /* still exists */
|
|
|
|
#define IS_ALL_HOSTS 0x0000040 /* in INADDR_ALLHOSTS_GROUP */
|
|
|
|
#define IS_ALL_ROUTERS 0x0000080 /* in INADDR_ALLROUTERS_GROUP */
|
1997-02-04 01:02:51 +03:00
|
|
|
#define IS_DISTRUST 0x0000100 /* ignore untrusted routers */
|
|
|
|
#define IS_REDIRECT_OK 0x0000200 /* accept ICMP redirects */
|
|
|
|
#define IS_BROKE 0x0000400 /* seems to be broken */
|
|
|
|
#define IS_SICK 0x0000800 /* seems to be broken */
|
|
|
|
#define IS_DUP 0x0001000 /* has a duplicate address */
|
1996-08-10 05:28:58 +04:00
|
|
|
#define IS_NEED_NET_SYN 0x0002000 /* need RS_NET_SYN route */
|
|
|
|
#define IS_NO_AG 0x0004000 /* do not aggregate subnets */
|
|
|
|
#define IS_NO_SUPER_AG 0x0008000 /* do not aggregate networks */
|
|
|
|
#define IS_NO_RIPV1_IN 0x0010000 /* no RIPv1 input at all */
|
|
|
|
#define IS_NO_RIPV2_IN 0x0020000 /* no RIPv2 input at all */
|
|
|
|
#define IS_NO_RIP_IN (IS_NO_RIPV1_IN | IS_NO_RIPV2_IN)
|
|
|
|
#define IS_RIP_IN_OFF(s) (((s) & IS_NO_RIP_IN) == IS_NO_RIP_IN)
|
|
|
|
#define IS_NO_RIPV1_OUT 0x0040000 /* no RIPv1 output at all */
|
|
|
|
#define IS_NO_RIPV2_OUT 0x0080000 /* no RIPv2 output at all */
|
|
|
|
#define IS_NO_RIP_OUT (IS_NO_RIPV1_OUT | IS_NO_RIPV2_OUT)
|
|
|
|
#define IS_NO_RIP (IS_NO_RIP_OUT | IS_NO_RIP_IN)
|
|
|
|
#define IS_RIP_OUT_OFF(s) (((s) & IS_NO_RIP_OUT) == IS_NO_RIP_OUT)
|
|
|
|
#define IS_RIP_OFF(s) (((s) & IS_NO_RIP) == IS_NO_RIP)
|
1998-06-02 22:02:55 +04:00
|
|
|
#define IS_NO_RIP_MCAST 0x0100000 /* broadcast RIPv2 */
|
|
|
|
#define IS_NO_ADV_IN 0x0200000 /* do not listen to advertisements */
|
|
|
|
#define IS_NO_SOL_OUT 0x0400000 /* send no solicitations */
|
|
|
|
#define IS_SOL_OUT 0x0800000 /* send solicitations */
|
|
|
|
#define GROUP_IS_SOL_OUT (IS_SOL_OUT | IS_NO_SOL_OUT)
|
|
|
|
#define IS_NO_ADV_OUT 0x1000000 /* do not advertise rdisc */
|
|
|
|
#define IS_ADV_OUT 0x2000000 /* advertise rdisc */
|
|
|
|
#define GROUP_IS_ADV_OUT (IS_NO_ADV_OUT | IS_ADV_OUT)
|
|
|
|
#define IS_BCAST_RDISC 0x4000000 /* broadcast instead of multicast */
|
1996-08-10 05:28:58 +04:00
|
|
|
#define IS_NO_RDISC (IS_NO_ADV_IN | IS_NO_SOL_OUT | IS_NO_ADV_OUT)
|
1998-06-02 22:02:55 +04:00
|
|
|
#define IS_PM_RDISC 0x8000000 /* poor-man's router discovery */
|
1996-08-10 05:28:58 +04:00
|
|
|
|
1998-06-02 22:02:55 +04:00
|
|
|
#define iff_up(f) ((f) & IFF_UP)
|
1996-08-10 05:28:58 +04:00
|
|
|
|
|
|
|
|
|
|
|
/* Information for aggregating routes */
|
|
|
|
#define NUM_AG_SLOTS 32
|
|
|
|
struct ag_info {
|
|
|
|
struct ag_info *ag_fine; /* slot with finer netmask */
|
|
|
|
struct ag_info *ag_cors; /* more coarse netmask */
|
|
|
|
naddr ag_dst_h; /* destination in host byte order */
|
|
|
|
naddr ag_mask;
|
|
|
|
naddr ag_gate;
|
|
|
|
naddr ag_nhop;
|
|
|
|
char ag_metric; /* metric to be advertised */
|
|
|
|
char ag_pref; /* aggregate based on this */
|
|
|
|
u_int ag_seqno;
|
|
|
|
u_short ag_tag;
|
|
|
|
u_short ag_state;
|
1998-10-25 17:56:06 +03:00
|
|
|
#define AGS_SUPPRESS 0x001 /* combine with coarser mask */
|
1998-06-02 22:02:55 +04:00
|
|
|
#define AGS_AGGREGATE 0x002 /* synthesize combined routes */
|
1996-08-10 05:28:58 +04:00
|
|
|
#define AGS_REDUN0 0x004 /* redundant, finer routes output */
|
|
|
|
#define AGS_REDUN1 0x008
|
|
|
|
#define AG_IS_REDUN(state) (((state) & (AGS_REDUN0 | AGS_REDUN1)) \
|
|
|
|
== (AGS_REDUN0 | AGS_REDUN1))
|
|
|
|
#define AGS_GATEWAY 0x010 /* tell kernel RTF_GATEWAY */
|
|
|
|
#define AGS_IF 0x020 /* for an interface */
|
|
|
|
#define AGS_RIPV2 0x040 /* send only as RIPv2 */
|
|
|
|
#define AGS_FINE_GATE 0x080 /* ignore differing ag_gate when this
|
|
|
|
* has the finer netmask */
|
|
|
|
#define AGS_CORS_GATE 0x100 /* ignore differing gate when this
|
1999-02-23 13:47:39 +03:00
|
|
|
* has the coarser netmasks */
|
1996-08-10 05:28:58 +04:00
|
|
|
#define AGS_SPLIT_HZ 0x200 /* suppress for split horizon */
|
|
|
|
|
|
|
|
/* some bits are set if they are set on either route */
|
1998-06-02 22:02:55 +04:00
|
|
|
#define AGS_AGGREGATE_EITHER (AGS_RIPV2 | AGS_GATEWAY | \
|
|
|
|
AGS_SUPPRESS | AGS_CORS_GATE)
|
1996-08-10 05:28:58 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* parameters for interfaces */
|
|
|
|
extern struct parm {
|
|
|
|
struct parm *parm_next;
|
1998-06-02 22:02:55 +04:00
|
|
|
char parm_name[IF_NAME_LEN+1];
|
1997-02-04 01:02:51 +03:00
|
|
|
naddr parm_net;
|
1996-08-10 05:28:58 +04:00
|
|
|
naddr parm_mask;
|
|
|
|
|
2002-11-30 07:04:23 +03:00
|
|
|
u_char parm_d_metric;
|
|
|
|
u_char parm_adj_inmetric;
|
|
|
|
u_char parm_adj_outmetric;
|
1996-08-10 05:28:58 +04:00
|
|
|
u_int parm_int_state;
|
1998-06-02 22:02:55 +04:00
|
|
|
int parm_rdisc_pref; /* signed IRDP preference */
|
1998-10-25 17:56:06 +03:00
|
|
|
int parm_rdisc_int; /* IRDP advertising interval */
|
1997-02-04 01:02:51 +03:00
|
|
|
struct auth parm_auth[MAX_AUTH_KEYS];
|
1996-08-10 05:28:58 +04:00
|
|
|
} *parms;
|
|
|
|
|
|
|
|
/* authority for internal networks */
|
|
|
|
extern struct intnet {
|
|
|
|
struct intnet *intnet_next;
|
1998-06-02 22:02:55 +04:00
|
|
|
naddr intnet_addr; /* network byte order */
|
1996-08-10 05:28:58 +04:00
|
|
|
naddr intnet_mask;
|
|
|
|
char intnet_metric;
|
|
|
|
} *intnets;
|
|
|
|
|
1998-06-02 22:02:55 +04:00
|
|
|
/* defined RIPv1 netmasks */
|
|
|
|
extern struct r1net {
|
|
|
|
struct r1net *r1net_next;
|
|
|
|
naddr r1net_net; /* host order */
|
|
|
|
naddr r1net_match;
|
|
|
|
naddr r1net_mask;
|
|
|
|
} *r1nets;
|
|
|
|
|
1997-02-04 01:02:51 +03:00
|
|
|
/* trusted routers */
|
|
|
|
extern struct tgate {
|
|
|
|
struct tgate *tgate_next;
|
|
|
|
naddr tgate_addr;
|
1998-06-02 22:02:55 +04:00
|
|
|
#define MAX_TGATE_NETS 32
|
|
|
|
struct tgate_net {
|
|
|
|
naddr net; /* host order */
|
|
|
|
naddr mask;
|
|
|
|
} tgate_nets[MAX_TGATE_NETS];
|
1997-02-04 01:02:51 +03:00
|
|
|
} *tgates;
|
|
|
|
|
|
|
|
enum output_type {OUT_QUERY, OUT_UNICAST, OUT_BROADCAST, OUT_MULTICAST,
|
|
|
|
NO_OUT_MULTICAST, NO_OUT_RIPV2};
|
1996-08-10 05:28:58 +04:00
|
|
|
|
1997-02-04 01:02:51 +03:00
|
|
|
/* common output buffers */
|
|
|
|
extern struct ws_buf {
|
|
|
|
struct rip *buf;
|
|
|
|
struct netinfo *n;
|
|
|
|
struct netinfo *base;
|
|
|
|
struct netinfo *lim;
|
|
|
|
enum output_type type;
|
|
|
|
} v12buf, v2buf;
|
1996-08-10 05:28:58 +04:00
|
|
|
|
|
|
|
extern pid_t mypid;
|
|
|
|
extern naddr myaddr; /* main address of this system */
|
|
|
|
|
|
|
|
extern int stopint; /* !=0 to stop */
|
|
|
|
|
|
|
|
extern int sock_max;
|
|
|
|
extern int rip_sock; /* RIP socket */
|
|
|
|
extern struct interface *rip_sock_mcast; /* current multicast interface */
|
|
|
|
extern int rt_sock; /* routing socket */
|
|
|
|
extern int rt_sock_seqno;
|
|
|
|
extern int rdisc_sock; /* router-discovery raw socket */
|
|
|
|
|
2002-11-30 07:04:23 +03:00
|
|
|
extern int seqno; /* sequence number for messages */
|
1996-08-10 05:28:58 +04:00
|
|
|
extern int supplier; /* process should supply updates */
|
|
|
|
extern int supplier_set; /* -s or -q requested */
|
1998-06-02 22:02:55 +04:00
|
|
|
extern int lookforinterfaces; /* 1=probe for new up interfaces */
|
1996-08-10 05:28:58 +04:00
|
|
|
extern int ridhosts; /* 1=reduce host routes */
|
|
|
|
extern int mhome; /* 1=want multi-homed host route */
|
1998-10-25 17:56:06 +03:00
|
|
|
extern int advertise_mhome; /* 1=must continue advertising it */
|
1996-08-10 05:28:58 +04:00
|
|
|
extern int auth_ok; /* 1=ignore auth if we do not care */
|
|
|
|
|
1997-02-04 01:02:51 +03:00
|
|
|
extern struct timeval clk; /* system clock's idea of time */
|
|
|
|
extern struct timeval epoch; /* system clock when started */
|
1996-08-10 05:28:58 +04:00
|
|
|
extern struct timeval now; /* current idea of time */
|
|
|
|
extern time_t now_stale;
|
1996-09-24 20:24:12 +04:00
|
|
|
extern time_t now_expire;
|
1996-08-10 05:28:58 +04:00
|
|
|
extern time_t now_garbage;
|
|
|
|
|
|
|
|
extern struct timeval next_bcast; /* next general broadcast */
|
|
|
|
extern struct timeval age_timer; /* next check of old routes */
|
|
|
|
extern struct timeval no_flash; /* inhibit flash update until then */
|
|
|
|
extern struct timeval rdisc_timer; /* next advert. or solicitation */
|
1998-10-25 17:56:06 +03:00
|
|
|
extern int rdisc_ok; /* using solicited route */
|
1996-08-10 05:28:58 +04:00
|
|
|
|
|
|
|
extern struct timeval ifinit_timer; /* time to check interfaces */
|
|
|
|
|
|
|
|
extern naddr loopaddr; /* our address on loopback */
|
|
|
|
extern int tot_interfaces; /* # of remote and local interfaces */
|
|
|
|
extern int rip_interfaces; /* # of interfaces doing RIP */
|
|
|
|
extern struct interface *ifnet; /* all interfaces */
|
1997-02-04 01:02:51 +03:00
|
|
|
extern struct interface *remote_if; /* remote interfaces */
|
1996-08-10 05:28:58 +04:00
|
|
|
extern int have_ripv1_out; /* have a RIPv1 interface */
|
|
|
|
extern int have_ripv1_in;
|
|
|
|
extern int need_flash; /* flash update needed */
|
|
|
|
extern struct timeval need_kern; /* need to update kernel table */
|
1999-02-23 13:47:39 +03:00
|
|
|
extern u_int update_seqno; /* a route has changed */
|
1996-08-10 05:28:58 +04:00
|
|
|
|
1997-02-04 01:02:51 +03:00
|
|
|
extern int tracelevel, new_tracelevel;
|
1996-09-24 20:24:12 +04:00
|
|
|
#define MAX_TRACELEVEL 4
|
|
|
|
#define TRACEKERNEL (tracelevel >= 4) /* log kernel changes */
|
1996-08-10 05:28:58 +04:00
|
|
|
#define TRACECONTENTS (tracelevel >= 3) /* display packet contents */
|
|
|
|
#define TRACEPACKETS (tracelevel >= 2) /* note packets */
|
|
|
|
#define TRACEACTIONS (tracelevel != 0)
|
|
|
|
extern FILE *ftrace; /* output trace file */
|
1997-02-04 01:02:51 +03:00
|
|
|
extern char inittracename[MAXPATHLEN+1];
|
1996-08-10 05:28:58 +04:00
|
|
|
|
|
|
|
extern struct radix_node_head *rhead;
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef sgi
|
|
|
|
/* Fix conflicts */
|
|
|
|
#define dup2(x,y) BSDdup2(x,y)
|
|
|
|
#endif /* sgi */
|
|
|
|
|
1999-02-23 13:47:39 +03:00
|
|
|
extern void fix_sock(int, const char *);
|
1996-08-10 05:28:58 +04:00
|
|
|
extern void fix_select(void);
|
|
|
|
extern void rip_off(void);
|
|
|
|
extern void rip_on(struct interface *);
|
|
|
|
|
1997-02-04 01:02:51 +03:00
|
|
|
extern void bufinit(void);
|
|
|
|
extern int output(enum output_type, struct sockaddr_in *,
|
|
|
|
struct interface *, struct rip *, int);
|
|
|
|
extern void clr_ws_buf(struct ws_buf *, struct auth *);
|
1996-08-10 05:28:58 +04:00
|
|
|
extern void rip_query(void);
|
|
|
|
extern void rip_bcast(int);
|
|
|
|
extern void supply(struct sockaddr_in *, struct interface *,
|
1997-02-04 01:02:51 +03:00
|
|
|
enum output_type, int, int, int);
|
1996-08-10 05:28:58 +04:00
|
|
|
|
1999-02-23 13:47:39 +03:00
|
|
|
extern void msglog(const char *, ...) PATTRIB(1,2);
|
1997-02-04 01:02:51 +03:00
|
|
|
struct msg_limit {
|
|
|
|
time_t reuse;
|
|
|
|
struct msg_sub {
|
|
|
|
naddr addr;
|
|
|
|
time_t until;
|
|
|
|
# define MSG_SUBJECT_N 8
|
|
|
|
} subs[MSG_SUBJECT_N];
|
|
|
|
};
|
1999-02-23 13:47:39 +03:00
|
|
|
extern void msglim(struct msg_limit *, naddr,
|
|
|
|
const char *, ...) PATTRIB(3,4);
|
1996-08-10 05:28:58 +04:00
|
|
|
#define LOGERR(msg) msglog(msg ": %s", strerror(errno))
|
1999-02-23 13:47:39 +03:00
|
|
|
extern void logbad(int, const char *, ...) PATTRIB(2,3);
|
1996-08-10 05:28:58 +04:00
|
|
|
#define BADERR(dump,msg) logbad(dump,msg ": %s", strerror(errno))
|
|
|
|
#ifdef DEBUG
|
|
|
|
#define DBGERR(dump,msg) BADERR(dump,msg)
|
|
|
|
#else
|
|
|
|
#define DBGERR(dump,msg) LOGERR(msg)
|
|
|
|
#endif
|
|
|
|
extern char *naddr_ntoa(naddr);
|
2004-04-21 23:01:17 +04:00
|
|
|
extern const char *saddr_ntoa(const struct sockaddr *);
|
1996-08-10 05:28:58 +04:00
|
|
|
|
1999-02-23 13:47:39 +03:00
|
|
|
extern void *rtmalloc(size_t, const char *);
|
1996-08-10 05:28:58 +04:00
|
|
|
extern void timevaladd(struct timeval *, struct timeval *);
|
|
|
|
extern void intvl_random(struct timeval *, u_long, u_long);
|
|
|
|
extern int getnet(char *, naddr *, naddr *);
|
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extern int gethost(char *, naddr *);
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extern void gwkludge(void);
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1999-02-23 13:47:39 +03:00
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extern const char *parse_parms(char *, int);
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extern const char *check_parms(struct parm *);
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1996-08-10 05:28:58 +04:00
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extern void get_parms(struct interface *);
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extern void lastlog(void);
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1998-06-02 22:02:55 +04:00
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extern void trace_close(int);
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1999-02-23 13:47:39 +03:00
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extern void set_tracefile(const char *, const char *, int);
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extern void tracelevel_msg(const char *, int);
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extern void trace_off(const char*, ...) PATTRIB(1,2);
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1996-08-10 05:28:58 +04:00
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extern void set_tracelevel(void);
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1997-02-04 01:02:51 +03:00
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extern void trace_flush(void);
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1999-02-23 13:47:39 +03:00
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extern void trace_misc(const char *, ...) PATTRIB(1,2);
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extern void trace_act(const char *, ...) PATTRIB(1,2);
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extern void trace_pkt(const char *, ...) PATTRIB(1,2);
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extern void trace_add_del(const char *, struct rt_entry *);
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1998-06-02 22:02:55 +04:00
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extern void trace_change(struct rt_entry *, u_int, struct rt_spare *,
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1999-02-23 13:47:39 +03:00
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const char *);
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extern void trace_if(const char *, struct interface *);
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1996-08-10 05:28:58 +04:00
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extern void trace_upslot(struct rt_entry *, struct rt_spare *,
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1998-06-02 22:02:55 +04:00
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struct rt_spare *);
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1999-02-23 13:47:39 +03:00
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extern void trace_rip(const char*, const char*, struct sockaddr_in *,
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1996-08-10 05:28:58 +04:00
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struct interface *, struct rip *, int);
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extern char *addrname(naddr, naddr, int);
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1997-02-04 01:02:51 +03:00
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extern char *rtname(naddr, naddr, naddr);
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1996-08-10 05:28:58 +04:00
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extern void rdisc_age(naddr);
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extern void set_rdisc_mg(struct interface *, int);
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extern void set_supplier(void);
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extern void if_bad_rdisc(struct interface *);
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extern void if_ok_rdisc(struct interface *);
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extern void read_rip(int, struct interface *);
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extern void read_rt(void);
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extern void read_d(void);
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extern void rdisc_adv(void);
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extern void rdisc_sol(void);
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extern void sigalrm(int);
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extern void sigterm(int);
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extern void sigtrace_on(int);
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extern void sigtrace_off(int);
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extern void flush_kern(void);
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extern void age(naddr);
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extern void ag_flush(naddr, naddr, void (*)(struct ag_info *));
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extern void ag_check(naddr, naddr, naddr, naddr, char, char, u_int,
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u_short, u_short, void (*)(struct ag_info *));
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1998-06-02 22:02:55 +04:00
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extern void del_static(naddr, naddr, naddr, int);
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1996-08-10 05:28:58 +04:00
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extern void del_redirects(naddr, time_t);
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extern struct rt_entry *rtget(naddr, naddr);
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extern struct rt_entry *rtfind(naddr);
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extern void rtinit(void);
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1998-06-02 22:02:55 +04:00
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extern void rtadd(naddr, naddr, u_int, struct rt_spare *);
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extern void rtchange(struct rt_entry *, u_int, struct rt_spare *, char *);
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1996-08-10 05:28:58 +04:00
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extern void rtdelete(struct rt_entry *);
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1997-02-04 01:02:51 +03:00
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extern void rts_delete(struct rt_entry *, struct rt_spare *);
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1996-08-10 05:28:58 +04:00
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extern void rtbad_sub(struct rt_entry *);
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extern void rtswitch(struct rt_entry *, struct rt_spare *);
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extern void rtbad(struct rt_entry *);
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2005-06-27 05:00:04 +04:00
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#define S_ADDR(x) (((const struct sockaddr_in *)(x))->sin_addr.s_addr)
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1996-08-10 05:28:58 +04:00
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#define INFO_DST(I) ((I)->rti_info[RTAX_DST])
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#define INFO_GATE(I) ((I)->rti_info[RTAX_GATEWAY])
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#define INFO_MASK(I) ((I)->rti_info[RTAX_NETMASK])
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#define INFO_IFA(I) ((I)->rti_info[RTAX_IFA])
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#define INFO_IFP(I) ((I)->rti_info[RTAX_IFP])
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#define INFO_AUTHOR(I) ((I)->rti_info[RTAX_AUTHOR])
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#define INFO_BRD(I) ((I)->rti_info[RTAX_BRD])
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void rt_xaddrs(struct rt_addrinfo *, struct sockaddr *, struct sockaddr *,
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int);
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extern naddr std_mask(naddr);
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extern naddr ripv1_mask_net(naddr, struct interface *);
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extern naddr ripv1_mask_host(naddr,struct interface *);
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2009-10-26 05:53:15 +03:00
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#define on_net_h(a,net,mask) ((((a) ^ (net)) & (mask)) == 0)
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#define on_net(a,net,mask) on_net_h(ntohl(a),net,mask)
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1996-08-10 05:28:58 +04:00
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extern int check_dst(naddr);
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1997-02-04 01:02:51 +03:00
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extern struct interface *check_dup(naddr, naddr, naddr, int);
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extern int check_remote(struct interface *);
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1997-09-15 14:38:11 +04:00
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extern int addrouteforif(struct interface *);
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1996-08-10 05:28:58 +04:00
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extern void ifinit(void);
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1996-09-24 20:24:12 +04:00
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extern int walk_bad(struct radix_node *, struct walkarg *);
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1999-02-23 13:47:39 +03:00
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extern int if_ok(struct interface *, const char *);
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1996-08-10 05:28:58 +04:00
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extern void if_sick(struct interface *);
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extern void if_bad(struct interface *);
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1997-02-04 01:02:51 +03:00
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extern void if_link(struct interface *);
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1996-08-10 05:28:58 +04:00
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extern struct interface *ifwithaddr(naddr, int, int);
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extern struct interface *ifwithname(char *, naddr);
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1997-02-04 01:02:51 +03:00
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extern struct interface *ifwithindex(u_short, int);
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1996-08-10 05:28:58 +04:00
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extern struct interface *iflookup(naddr);
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1997-02-04 01:02:51 +03:00
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extern struct auth *find_auth(struct interface *);
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extern void end_md5_auth(struct ws_buf *, struct auth *);
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2001-03-11 02:52:45 +03:00
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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#include <md5.h>
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#else
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1997-02-04 01:02:51 +03:00
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#define MD5_DIGEST_LEN 16
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typedef struct {
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u_int32_t state[4]; /* state (ABCD) */
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u_int32_t count[2]; /* # of bits, modulo 2^64 (LSB 1st) */
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unsigned char buffer[64]; /* input buffer */
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} MD5_CTX;
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extern void MD5Init(MD5_CTX*);
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extern void MD5Update(MD5_CTX*, u_char*, u_int);
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extern void MD5Final(u_char[MD5_DIGEST_LEN], MD5_CTX*);
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2001-03-11 02:52:45 +03:00
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#endif
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