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ip_fil.c (145554) ip_fil.c (161357)
1/* $FreeBSD: head/contrib/ipfilter/ip_fil.c 145554 2005-04-26 15:18:45Z darrenr $ */
1/* $FreeBSD: head/contrib/ipfilter/ip_fil.c 161357 2006-08-16 12:23:02Z guido $ */
2
3/*
4 * Copyright (C) 1993-2001 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 */
8#if !defined(lint)
9static const char sccsid[] = "@(#)ip_fil.c 2.41 6/5/96 (C) 1993-2000 Darren Reed";
2
3/*
4 * Copyright (C) 1993-2001 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 */
8#if !defined(lint)
9static const char sccsid[] = "@(#)ip_fil.c 2.41 6/5/96 (C) 1993-2000 Darren Reed";
10static const char rcsid[] = "@(#)$Id: ip_fil.c,v 2.133.2.9 2005/01/08 14:22:18 darrenr Exp $";
10static const char rcsid[] = "@(#)$Id: ip_fil.c,v 2.133.2.11 2006/03/25 11:15:30 darrenr Exp $";
11#endif
12
13#ifndef SOLARIS
14#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
15#endif
16
17#include <sys/param.h>
18#if defined(__FreeBSD__) && !defined(__FreeBSD_version)

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133# include <sys/malloc.h>
134#endif
135#ifdef __hpux
136struct rtentry;
137#endif
138#include "md5.h"
139
140
11#endif
12
13#ifndef SOLARIS
14#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
15#endif
16
17#include <sys/param.h>
18#if defined(__FreeBSD__) && !defined(__FreeBSD_version)

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133# include <sys/malloc.h>
134#endif
135#ifdef __hpux
136struct rtentry;
137#endif
138#include "md5.h"
139
140
141#if !defined(__osf__)
141#if !defined(__osf__) && !defined(__linux__)
142extern struct protosw inetsw[];
143#endif
144
145#include "ipt.h"
146static struct ifnet **ifneta = NULL;
147static int nifs = 0;
148
149static int frzerostats __P((caddr_t));

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713
714int fr_fastroute(m, mpp, fin, fdp)
715mb_t *m, **mpp;
716fr_info_t *fin;
717frdest_t *fdp;
718{
719 struct ifnet *ifp = fdp->fd_ifp;
720 ip_t *ip = fin->fin_ip;
142extern struct protosw inetsw[];
143#endif
144
145#include "ipt.h"
146static struct ifnet **ifneta = NULL;
147static int nifs = 0;
148
149static int frzerostats __P((caddr_t));

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713
714int fr_fastroute(m, mpp, fin, fdp)
715mb_t *m, **mpp;
716fr_info_t *fin;
717frdest_t *fdp;
718{
719 struct ifnet *ifp = fdp->fd_ifp;
720 ip_t *ip = fin->fin_ip;
721 int error = 0;
722 frentry_t *fr;
723 void *sifp;
721
722 if (!ifp)
723 return 0; /* no routing table out here */
724
724
725 if (!ifp)
726 return 0; /* no routing table out here */
727
725 ip->ip_len = htons((u_short)ip->ip_len);
726 ip->ip_off = htons((u_short)(ip->ip_off | IP_MF));
728 fr = fin->fin_fr;
727 ip->ip_sum = 0;
729 ip->ip_sum = 0;
730
731 if (fin->fin_out == 0) {
732 sifp = fin->fin_ifp;
733 fin->fin_ifp = ifp;
734 fin->fin_out = 1;
735 (void) fr_acctpkt(fin, NULL);
736 fin->fin_fr = NULL;
737 if (!fr || !(fr->fr_flags & FR_RETMASK)) {
738 u_32_t pass;
739
740 (void) fr_checkstate(fin, &pass);
741 }
742
743 switch (fr_checknatout(fin, NULL))
744 {
745 case 0 :
746 break;
747 case 1 :
748 ip->ip_sum = 0;
749 break;
750 case -1 :
751 error = -1;
752 goto done;
753 break;
754 }
755
756 fin->fin_ifp = sifp;
757 fin->fin_out = 0;
758 }
759
728#if defined(__sgi) && (IRIX < 60500)
729 (*ifp->if_output)(ifp, (void *)ip, NULL);
730# if TRU64 >= 1885
731 (*ifp->if_output)(ifp, (void *)m, NULL, 0, 0);
732# else
733 (*ifp->if_output)(ifp, (void *)m, NULL, 0);
734# endif
735#endif
760#if defined(__sgi) && (IRIX < 60500)
761 (*ifp->if_output)(ifp, (void *)ip, NULL);
762# if TRU64 >= 1885
763 (*ifp->if_output)(ifp, (void *)m, NULL, 0, 0);
764# else
765 (*ifp->if_output)(ifp, (void *)m, NULL, 0);
766# endif
767#endif
736 return 0;
768done:
769 return error;
737}
738
739
740int fr_send_reset(fin)
741fr_info_t *fin;
742{
743 verbose("- TCP RST sent\n");
744 return 0;

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771
772
773int fr_send_reset(fin)
774fr_info_t *fin;
775{
776 verbose("- TCP RST sent\n");
777 return 0;

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