82157587f3
In rt_change() remember to update the interface pointer otherwise we will send the RIP packets to the wrong interface(s) in future. Update the hash generator and increase the size of the hash tables. Only use the network and host parts when comparing IPX interface addresses. Immediately broadscast RIP and SAP changes. Change the alarm code to use the setitimer() call and only set a flag in the alarm signal handler. This gets rid of possible race conditions. Remove the host routing table. IPX RIP cannot do host routes, only net routes. Make the delay between broadcast packets 50ms. It seems that some Netware 4.x servers is very slow and don't have much input buffering. Handle received messages about networks and services that go down, better. Add tracing of RIP and SAP changes. It gets sysloged with a level of LOG_DEBUG.
152 lines
4.3 KiB
C
152 lines
4.3 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Copyright (c) 1995 John Hay. All rights reserved.
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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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* must display the following acknowledgement:
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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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* static char sccsid[] = "@(#)if.c 5.1 (Berkeley) 6/4/85"; (routed/if.c)
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*
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* $Id: if.c,v 1.3 1997/02/22 16:00:55 peter Exp $
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*/
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#ifndef lint
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static char sccsid[] = "@(#)if.c 8.1 (Berkeley) 6/5/93";
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#endif /* not lint */
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/*
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* Routing Table Management Daemon
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*/
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#include "defs.h"
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extern struct interface *ifnet;
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/*
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* Find the interface with address addr.
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*/
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struct interface *
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if_ifwithaddr(addr)
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struct sockaddr *addr;
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{
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register struct interface *ifp;
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#define same(a1, a2) \
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(bcmp((caddr_t)((a1)->sa_data), (caddr_t)((a2)->sa_data), 10) == 0)
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for (ifp = ifnet; ifp; ifp = ifp->int_next) {
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if (ifp->int_flags & IFF_REMOTE)
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continue;
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if (ifp->int_addr.sa_family != addr->sa_family)
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continue;
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if (same(&ifp->int_addr, addr))
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break;
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if ((ifp->int_flags & IFF_BROADCAST) &&
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same(&ifp->int_broadaddr, addr))
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break;
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}
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return (ifp);
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}
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/*
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* Find the point-to-point interface with destination address addr.
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*/
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struct interface *
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if_ifwithdstaddr(addr)
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struct sockaddr *addr;
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{
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register struct interface *ifp;
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for (ifp = ifnet; ifp; ifp = ifp->int_next) {
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if ((ifp->int_flags & IFF_POINTOPOINT) == 0)
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continue;
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if (same(&ifp->int_dstaddr, addr))
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break;
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}
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return (ifp);
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}
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/*
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* Find the interface on the network
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* of the specified address.
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*/
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struct interface *
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if_ifwithnet(addr)
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register struct sockaddr *addr;
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{
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register struct interface *ifp;
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register int af = addr->sa_family;
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register int (*netmatch)();
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if (af >= AF_MAX)
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return (0);
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netmatch = afswitch[af].af_netmatch;
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for (ifp = ifnet; ifp; ifp = ifp->int_next) {
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if (ifp->int_flags & IFF_REMOTE)
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continue;
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if (af != ifp->int_addr.sa_family)
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continue;
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if ((*netmatch)(addr, &ifp->int_addr))
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break;
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}
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return (ifp);
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}
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/*
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* Find an interface from which the specified address
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* should have come from. Used for figuring out which
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* interface a packet came in on -- for tracing.
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*/
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struct interface *
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if_iflookup(addr)
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struct sockaddr *addr;
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{
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register struct interface *ifp, *maybe;
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register int af = addr->sa_family;
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register int (*netmatch)();
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if (af >= AF_MAX)
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return (0);
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maybe = 0;
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netmatch = afswitch[af].af_netmatch;
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for (ifp = ifnet; ifp; ifp = ifp->int_next) {
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if (ifp->int_addr.sa_family != af)
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continue;
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if (same(&ifp->int_addr, addr))
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break;
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if ((ifp->int_flags & IFF_BROADCAST) &&
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same(&ifp->int_broadaddr, addr))
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break;
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if (maybe == 0 && (*netmatch)(addr, &ifp->int_addr))
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maybe = ifp;
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}
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if (ifp == 0)
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ifp = maybe;
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return (ifp);
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}
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