This commit was manufactured by cvs2svn to create tagvendor/ipfilter-sys/4-1-10

'ipfilter-vendor-sys-v4-1-10'.

8 files changed, 0 insertions, 3150 deletions

diff --git a/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE b/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE
deleted file mode 100644
index 2b4b67e86fd9..000000000000
--- a/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE
+++ /dev/null
@@ -1,28 +0,0 @@
-Copyright (C) 1993-2002 by Darren Reed.
-
-The author accepts no responsibility for the use of this software and
-provides it on an ``as is'' basis without express or implied warranty.
-
-Redistribution and use, with or without modification, in source and binary
-forms, are permitted provided that this notice is preserved in its entirety
-and due credit is given to the original author and the contributors.
-
-The licence and distribution terms for any publically available version or
-derivative of this code cannot be changed. i.e. this code cannot simply be
-copied, in part or in whole, and put under another distribution licence
-[including the GNU Public Licence.]
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
-I hate legalese, don't you ?
-
diff --git a/sys/contrib/ipfilter/netinet/QNX_OCL.txt b/sys/contrib/ipfilter/netinet/QNX_OCL.txt
deleted file mode 100644
index 6aa33eaf6b06..000000000000
--- a/sys/contrib/ipfilter/netinet/QNX_OCL.txt
+++ /dev/null
@@ -1,275 +0,0 @@
-   End User License Certificate (EULA) End User License Certificate
-   (EULA) 
-   Support Support 
-   QNX Source Licenses QNX Source Licenses 
-   License of the month
-   Confidential Source License
-   Version 1.0
-   
-QNX Open Community License Version 1.0
-
-   THIS QNX OPEN COMMUNITY LICENSE ( "THE OCL", OR "THIS AGREEMENT")
-   APPLIES TO PROGRAMS THAT QNX SOFTWARE SYSTEMS LTD. ("QSS") EXPRESSLY
-   ELECTS TO LICENSE UNDER THE OCL TERMS. IT ALSO APPLIES TO DERIVATIVE
-   WORKS CREATED UNDER THIS AGREEMENT THAT CREATORS ELECT TO LICENSE TO
-   OTHERS IN SOURCE CODE FORM. ANY USE, REPRODUCTION, MODIFICATION OR
-   DISTRIBUTION OF SUCH PROGRAMS CONSTITUTES RECIPIENT'S ACCEPTANCE OF
-   THE OCL. THE LICENSE RIGHTS GRANTED BELOW ARE CONDITIONAL UPON
-   RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT AND THE FORMATION OF A
-   BINDING CONTRACT. NOTHING ELSE GRANTS PERMISSION TO USE, REPRODUCE,
-   MODIFY OR DISTRIBUTE SUCH PROGRAMS OR THEIR DERIVATIVE WORKS. THESE
-   ACTIONS ARE OTHERWISE PROHIBITED. CONTACT QSS IF OTHER STEPS ARE
-   REQUIRED LOCALLY TO CREATE A BINDING CONTRACT.
-   
-   The OCL is intended to promote the development, use and distribution
-   of derivative works created from QSS source code. This includes
-   commercial distribution of object code versions under the terms of
-   Recipient's own license agreement and, at Recipient's option, sharing
-   of source code modifications within the QNX developer's community. The
-   license granted under the OCL is royalty free. Recipient is entitled
-   to charge royalties for object code versions of derivative works that
-   originate with Recipient. If Recipient elects to license source code
-   for its derivative works to others, then it must be licensed under the
-   OCL. The terms of the OCL are as follows:
-   
-1. DEFINITIONS
-
-   "Contribution" means:
-   
-    a. in the case of QSS: (i) the Original Program, where the Original
-       Program originates from QSS, (ii) changes and/or additions to
-       Unrestricted Open Source, where the Original Program originates
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-       additions originate from QSS, and (iii) changes and/or additions
-       to the Program where such changes and/or additions originate from
-       QSS.
-    b. in the case of each Contributor, changes and/or additions to the
-       Program, where such changes and/or additions originate from and
-       are distributed by that particular Contributor.
-       
-   A Contribution 'originates' from a Contributor if it was added to the
-   Program by such Contributor itself or anyone acting on such
-   Contributor's behalf. Contributions do not include additions to the
-   Program which: (i) are separate modules of software distributed in
-   conjunction with the Program under their own license agreement, and
-   (ii) are not derivative works of the Program.
-   
-   "Contributor" means QSS and any other entity that distributes the
-   Program.
-   
-   "Licensed Patents " mean patent claims licensable by Contributor to
-   others, which are necessarily infringed by the use or sale of its
-   Contribution alone or when combined with the Program.
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-   and distribution model, such as the Berkley Software Design ("BSD")
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-   the GNU Lesser/Library GPL. All "Unrestricted Open Source" license
-   terms appear or are clearly identified in the header of any affected
-   source code for the Original Program.
-   
-   "Original Program" means the original version of the software
-   accompanying this Agreement as released by QSS, including source code,
-   object code and documentation, if any.
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-2. GRANT OF RIGHTS
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-  3. REQUIREMENTS
-  
-   A Contributor may choose to distribute the Program in object code form
-   under its own license agreement, provided that:
-   
-    a. it complies with the terms and conditions of this Agreement; and
-    b. its license agreement:
-         i. effectively disclaims on behalf of all Contributors all
-            warranties and conditions, express and implied, including
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-            implied warranties or conditions of merchantability and
-            fitness for a particular purpose;
-        ii. effectively excludes on behalf of all Contributors all
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-            incidental and consequential damages, such as lost profits;
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-        iii. states that any provisions which differ from this Agreement
-            are offered by that Contributor alone and not by any other
-            party.
-       
-   If the Program is made available in source code form:
-   
-    a. it must be made available under this Agreement; and
-    b. a copy of this Agreement must be included with each copy of the
-       Program. Each Contributor must include the following in a
-       conspicuous location in the Program along with any other copyright
-       or attribution statements required by the terms of any applicable
-       Unrestricted Open Source license:
-       Copyright {date here}, QNX Software Systems Ltd. and others. All
-       Rights Reserved.
-       
-   In addition, each Contributor must identify itself as the originator
-   of its Contribution, if any, in a manner that reasonably allows
-   subsequent Recipients to identify the originator of the Contribution.
-   
-  4. COMMERCIAL DISTRIBUTION
-  
-   Commercial distributors of software may accept certain
-   responsibilities with respect to end users, business partners and the
-   like. While this license is intended to facilitate the commercial use
-   of the Program, the Contributor who includes the Program in a
-   commercial product offering should do so in a manner which does not
-   create potential liability for other Contributors. Therefore, if a
-   Contributor includes the Program in a commercial product offering,
-   such Contributor ("Commercial Contributor") hereby agrees to defend
-   and indemnify every other Contributor ("Indemnified Contributor")
-   against any losses, damages and costs (collectively "Losses") arising
-   from claims, lawsuits and other legal actions brought by a third party
-   against the Indemnified Contributor to the extent caused by the acts
-   or omissions of such Commercial Contributor in connection with its
-   distribution of the Program in a commercial product offering. The
-   obligations in this section do not apply to any claims or Losses
-   relating to any actual or alleged intellectual property infringement.
-   In order to qualify, an Indemnified Contributor must: a) promptly
-   notify the Commercial Contributor in writing of such claim, and b)
-   allow the Commercial Contributor to control, and cooperate with the
-   Commercial Contributor in, the defense and any related settlement
-   negotiations. The Indemnified Contributor may participate in any such
-   claim at its own expense.
-   
-   For example, a Contributor might include the Program in a commercial
-   product offering, Product X. That Contributor is then a Commercial
-   Contributor. If that Commercial Contributor then makes performance
-   claims, or offers warranties related to Product X, those performance
-   claims and warranties are such Commercial Contributor's responsibility
-   alone. Under this section, the Commercial Contributor would have to
-   defend claims against the other Contributors related to those
-   performance claims and warranties, and if a court requires any other
-   Contributor to pay any damages as a result, the Commercial Contributor
-   must pay those damages.
-   
-  5. NO WARRANTY
-  
-   Recipient acknowledges that there may be errors or bugs in the Program
-   and that it is imperative that Recipient conduct thorough testing to
-   identify and correct any problems prior to the productive use or
-   commercial release of any products that use the Program, and prior to
-   the release of any modifications, updates or enhancements thereto.
-   
-   EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS
-   PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-   KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
-   WARRANTIES OR CONDITIONS OF TITLE, NON- INFRINGEMENT, MERCHANTABILITY
-   OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is solely
-   responsible for determining the appropriateness of using and
-   distributing the Program and assumes all risks associated with its
-   exercise of rights under this Agreement, including but not limited to
-   the risks and costs of program errors, compliance with applicable
-   laws, damage to or loss of data, programs or equipment, and
-   unavailability or interruption of operations.
-   
-  6. DISCLAIMER OF LIABILITY
-  
-   EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR
-   ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT,
-   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING
-   WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF
-   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR
-   DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
-   HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
-   
-  7. GENERAL
-  
-   If any provision of this Agreement is invalid or unenforceable under
-   applicable law, it shall not affect the validity or enforceability of
-   the remainder of the terms of this Agreement, and without further
-   action by the parties hereto, such provision shall be reformed to the
-   minimum extent necessary to make such provision valid and enforceable.
-   
-   If Recipient institutes patent litigation against a Contributor with
-   respect to a patent applicable to software (including a cross-claim or
-   counterclaim in a lawsuit), then any patent licenses granted by that
-   Contributor to such recipient under this Agreement shall terminate as
-   of the date such litigation is filed. In addition, If Recipient
-   institutes patent litigation against any entity (including a
-   cross-claim or counterclaim in a lawsuit) alleging that the Program
-   itself (excluding combinations of the Program with other software or
-   hardware) infringes such Recipient's patent(s), then such Recipient's
-   rights granted under Section 2(b) shall terminate as of the date such
-   litigation is filed.
-   
-   All Recipient's rights under this Agreement shall terminate if it
-   fails to comply with any of the material terms or conditions of this
-   Agreement and does not cure such failure in a reasonable period of
-   time after becoming aware of such noncompliance. If all Recipient's
-   rights under this Agreement terminate, Recipient agrees to cease use
-   and distribution of the Program as soon as reasonably practicable.
-   However, Recipient's obligations under this Agreement and any licenses
-   granted by Recipient relating to the Program shall continue and
-   survive.
-   
-   QSS may publish new versions (including revisions) of this Agreement
-   from time to time. Each new version of the Agreement will be given a
-   distinguishing version number. The Program (including Contributions)
-   may always be distributed subject to the version of the Agreement
-   under which it was received. In addition, after a new version of the
-   Agreement is published, Contributor may elect to distribute the
-   Program (including its Contributions) under the new version. No one
-   other than QSS has the right to modify this Agreement. Except as
-   expressly stated in Sections 2(a) and 2(b) above, Recipient receives
-   no rights or licenses to the intellectual property of any Contributor
-   under this Agreement, whether expressly, by implication, estoppel or
-   otherwise. All rights in the Program not expressly granted under this
-   Agreement are reserved.
-   
-   This Agreement is governed by the laws in force in the Province of
-   Ontario, Canada without regard to the conflict of law provisions
-   therein. The parties expressly disclaim the provisions of the United
-   Nations Convention on Contracts for the International Sale of Goods.
-   No party to this Agreement will bring a legal action under this
-   Agreement more than one year after the cause of action arose. Each
-   party waives its rights to a jury trial in any resulting litigation.
-   
-   * QNX is a registered trademark of QNX Software Systems Ltd.
-   
-                         Document Version: ocl1_00
diff --git a/sys/contrib/ipfilter/netinet/ip_fil.c b/sys/contrib/ipfilter/netinet/ip_fil.c
deleted file mode 100644
index 00e8565ec246..000000000000
--- a/sys/contrib/ipfilter/netinet/ip_fil.c
+++ /dev/null
@@ -1,2293 +0,0 @@
-/*
- * Copyright (C) 1993-2001 by Darren Reed.
- *
- * See the IPFILTER.LICENCE file for details on licencing.
- */
-#ifndef	SOLARIS
-#define	SOLARIS	(defined(sun) && (defined(__svr4__) || defined(__SVR4)))
-#endif
-
-#if defined(KERNEL) && !defined(_KERNEL)
-# define	_KERNEL
-#endif
-#if defined(_KERNEL) && defined(__FreeBSD_version) && \
-    (__FreeBSD_version >= 400000) && !defined(KLD_MODULE)
-#include "opt_inet6.h"
-#endif
-#include <sys/param.h>
-#if defined(__NetBSD__) && (NetBSD >= 199905) && !defined(IPFILTER_LKM) && \
-    defined(_KERNEL)  && !defined(_LKM)
-# include "opt_ipfilter_log.h"
-#endif
-#if defined(__FreeBSD__) && !defined(__FreeBSD_version)
-# if !defined(_KERNEL) || defined(IPFILTER_LKM)
-#  include <osreldate.h>
-# endif
-#endif
-#if defined(__sgi) && (IRIX > 602)
-# define _KMEMUSER
-# include <sys/ptimers.h>
-#endif
-#ifndef	_KERNEL
-# include <stdio.h>
-# include <string.h>
-# include <stdlib.h>
-# include <ctype.h>
-# include <fcntl.h>
-#endif
-#include <sys/errno.h>
-#include <sys/types.h>
-#include <sys/file.h>
-#if __FreeBSD_version >= 220000 && defined(_KERNEL)
-# include <sys/fcntl.h>
-# include <sys/filio.h>
-#else
-# include <sys/ioctl.h>
-#endif
-#include <sys/time.h>
-#ifdef	_KERNEL
-# include <sys/systm.h>
-#endif
-#if !SOLARIS
-# if (NetBSD > 199609) || (OpenBSD > 199603) || (__FreeBSD_version >= 300000)
-#  include <sys/dirent.h>
-# else
-#  include <sys/dir.h>
-# endif
-# include <sys/mbuf.h>
-#else
-# include <sys/filio.h>
-#endif
-#include <sys/protosw.h>
-#include <sys/socket.h>
-
-#include <net/if.h>
-#ifdef sun
-# include <net/af.h>
-#endif
-#if __FreeBSD_version >= 300000
-# include <net/if_var.h>
-# if defined(_KERNEL) && !defined(IPFILTER_LKM)
-#  include "opt_ipfilter.h"
-# endif
-#endif
-#ifdef __sgi
-#include <sys/debug.h>
-# ifdef IFF_DRVRLOCK /* IRIX6 */
-#include <sys/hashing.h>
-# endif
-#endif
-#include <net/route.h>
-#include <netinet/in.h>
-#if !(defined(__sgi) && !defined(IFF_DRVRLOCK)) /* IRIX < 6 */
-# include <netinet/in_var.h>
-#endif
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_var.h>
-#include <netinet/tcp.h>
-#include <netinet/udp.h>
-#include <netinet/tcpip.h>
-#include <netinet/ip_icmp.h>
-#ifndef	_KERNEL
-# include <unistd.h>
-# include <syslog.h>
-#endif
-#include "netinet/ip_compat.h"
-#ifdef USE_INET6
-# include <netinet/icmp6.h>
-# if !SOLARIS
-#  include <netinet6/ip6protosw.h>
-#  include <netinet6/nd6.h>
-# endif
-#endif
-#include "netinet/ip_fil.h"
-#include "netinet/ip_nat.h"
-#include "netinet/ip_frag.h"
-#include "netinet/ip_state.h"
-#include "netinet/ip_proxy.h"
-#include "netinet/ip_auth.h"
-#if defined(__FreeBSD_version) && (__FreeBSD_version >= 300000)
-# include <sys/malloc.h>
-#endif
-#ifndef	MIN
-# define	MIN(a,b)	(((a)<(b))?(a):(b))
-#endif
-#if !SOLARIS && defined(_KERNEL) && !defined(__sgi)
-# include <sys/kernel.h>
-extern	int	ip_optcopy __P((struct ip *, struct ip *));
-#endif
-#if defined(OpenBSD) && (OpenBSD >= 200211) && defined(_KERNEL)
-extern	int	ip6_getpmtu(struct route_in6 *, struct route_in6 *,
-			    struct ifnet *, struct in6_addr *, u_long *);
-#endif
-
-#if !defined(lint)
-static const char sccsid[] = "@(#)ip_fil.c	2.41 6/5/96 (C) 1993-2000 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ip_fil.c,v 2.42.2.76 2004/05/12 23:21:03 darrenr Exp $";
-#endif
-
-
-extern	struct	protosw	inetsw[];
-
-#ifndef	_KERNEL
-# include "ipt.h"
-static	struct	ifnet **ifneta = NULL;
-static	int	nifs = 0;
-#else
-# if	(BSD < 199306) || defined(__sgi)
-extern	int	tcp_ttl;
-# endif
-#endif
-
-#ifdef	ICMP_UNREACH_FILTER_PROHIB
-int	ipl_unreach = ICMP_UNREACH_FILTER_PROHIB;
-#else
-int	ipl_unreach = ICMP_UNREACH_FILTER;
-#endif
-u_long	ipl_frouteok[2] = {0, 0};
-
-static	int	frzerostats __P((caddr_t));
-#if defined(__NetBSD__) || defined(__OpenBSD__) || (__FreeBSD_version >= 300003)
-static	int	frrequest __P((int, u_long, caddr_t, int));
-#else
-static	int	frrequest __P((int, int, caddr_t, int));
-#endif
-#ifdef	_KERNEL
-static	int	(*fr_savep) __P((ip_t *, int, void *, int, struct mbuf **));
-static	int	send_ip __P((ip_t *, fr_info_t *, struct mbuf **));
-# ifdef	USE_INET6
-static	int	ipfr_fastroute6 __P((struct mbuf *, struct mbuf **,
-				     fr_info_t *, frdest_t *));
-# endif
-# ifdef	__sgi
-extern	int		tcp_mtudisc;
-extern  kmutex_t        ipf_rw;
-extern	KRWLOCK_T	ipf_mutex;
-# endif
-#else
-void	init_ifp __P((void));
-# if defined(__sgi) && (IRIX < 605)
-static int 	no_output __P((struct ifnet *, struct mbuf *,
-			       struct sockaddr *));
-static int	write_output __P((struct ifnet *, struct mbuf *,
-				  struct sockaddr *));
-# else
-static int 	no_output __P((struct ifnet *, struct mbuf *,
-			       struct sockaddr *, struct rtentry *));
-static int	write_output __P((struct ifnet *, struct mbuf *,
-				  struct sockaddr *, struct rtentry *));
-# endif
-#endif
-int	fr_running = 0;
-
-#if (__FreeBSD_version >= 300000) && defined(_KERNEL)
-struct callout_handle ipfr_slowtimer_ch;
-#endif
-#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104230000)
-# include <sys/callout.h>
-struct callout ipfr_slowtimer_ch;
-#endif
-#if defined(__OpenBSD__)
-# include <sys/timeout.h>
-struct timeout ipfr_slowtimer_ch;
-#endif
-#if defined(__sgi) && defined(_KERNEL)
-toid_t ipfr_slowtimer_ch;
-#endif
-
-#if defined(__NetBSD__) && (__NetBSD_Version__ >= 106080000) && \
-    defined(_KERNEL)
-# include <sys/conf.h>
-const struct cdevsw ipl_cdevsw = {
-	iplopen, iplclose, iplread, nowrite, iplioctl,
-	nostop, notty, nopoll, nommap,
-};
-#endif
-
-#if (_BSDI_VERSION >= 199510) && defined(_KERNEL)
-# include <sys/device.h>
-# include <sys/conf.h>
-
-struct cfdriver iplcd = {
-	NULL, "ipl", NULL, NULL, DV_DULL, 0
-};
-
-struct devsw iplsw = {
-	&iplcd,
-	iplopen, iplclose, iplread, nowrite, iplioctl, noselect, nommap,
-	nostrat, nodump, nopsize, 0,
-	nostop
-};
-#endif /* _BSDI_VERSION >= 199510  && _KERNEL */
-
-#if defined(__NetBSD__) || defined(__OpenBSD__)  || (_BSDI_VERSION >= 199701)
-# include <sys/conf.h>
-# if defined(NETBSD_PF)
-#  include <net/pfil.h>
-/*
- * We provide the fr_checkp name just to minimize changes later.
- */
-int (*fr_checkp) __P((ip_t *ip, int hlen, void *ifp, int out, mb_t **mp));
-# endif /* NETBSD_PF */
-#endif /* __NetBSD__ */
-
-
-#if defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 105110000) && \
-    defined(_KERNEL)
-# include <net/pfil.h>
-
-static int fr_check_wrapper(void *, struct mbuf **, struct ifnet *, int );
-
-static int fr_check_wrapper(arg, mp, ifp, dir)
-void *arg;
-struct mbuf **mp;
-struct ifnet *ifp;
-int dir;
-{
-	struct ip *ip = mtod(*mp, struct ip *);
-	int rv, hlen = ip->ip_hl << 2;
-
-#if defined(M_CSUM_TCPv4)
-	/*
-	 * If the packet is out-bound, we can't delay checksums
-	 * here.  For in-bound, the checksum has already been
-	 * validated.
-	 */
-	if (dir == PFIL_OUT) {
-		if ((*mp)->m_pkthdr.csum_flags & (M_CSUM_TCPv4|M_CSUM_UDPv4)) {
-			in_delayed_cksum(*mp);
-			(*mp)->m_pkthdr.csum_flags &=
-			    ~(M_CSUM_TCPv4|M_CSUM_UDPv4);
-		}
-	}
-#endif /* M_CSUM_TCPv4 */
-
-	/*
-	 * We get the packet with all fields in network byte
-	 * order.  We expect ip_len and ip_off to be in host
-	 * order.  We frob them, call the filter, then frob
-	 * them back.
-	 *
-	 * Note, we don't need to update the checksum, because
-	 * it has already been verified.
-	 */
-	NTOHS(ip->ip_len);
-	NTOHS(ip->ip_off);
-
-	rv = fr_check(ip, hlen, ifp, (dir == PFIL_OUT), mp);
-
-	if (rv == 0 && *mp != NULL) {
-		ip = mtod(*mp, struct ip *);
-		HTONS(ip->ip_len);
-		HTONS(ip->ip_off);
-	}
-
-	return (rv);
-}
-
-# ifdef USE_INET6
-#  include <netinet/ip6.h>
-
-static int fr_check_wrapper6(void *, struct mbuf **, struct ifnet *, int );
-
-static int fr_check_wrapper6(arg, mp, ifp, dir)
-void *arg;
-struct mbuf **mp;
-struct ifnet *ifp;
-int dir;
-{
-	
-	return (fr_check(mtod(*mp, struct ip *), sizeof(struct ip6_hdr),
-	    ifp, (dir == PFIL_OUT), mp));
-}
-# endif
-#endif /* __NetBSD_Version >= 105110000 && _KERNEL */
-#ifdef	_KERNEL
-# if	defined(IPFILTER_LKM) && !defined(__sgi)
-int iplidentify(s)
-char *s;
-{
-	if (strcmp(s, "ipl") == 0)
-		return 1;
-	return 0;
-}
-# endif /* IPFILTER_LKM */
-
-
-/*
- * Try to detect the case when compiling for NetBSD with pseudo-device
- */
-# if defined(__NetBSD__) && defined(PFIL_HOOKS)
-void
-ipfilterattach(count)
-int count;
-{
-
-	/*
-	 * Do nothing here, really.  The filter will be enabled
-	 * by the SIOCFRENB ioctl.
-	 */
-}
-# endif
-
-
-# if defined(__NetBSD__) || defined(__OpenBSD__)
-int ipl_enable()
-# else
-int iplattach()
-# endif
-{
-	char *defpass;
-	int s;
-# if defined(__sgi) || (defined(NETBSD_PF) && (__NetBSD_Version__ >= 104200000))
-	int error = 0;
-# endif
-#if defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 105110000)
-	struct pfil_head *ph_inet;
-# ifdef USE_INET6
-	struct pfil_head *ph_inet6;
-# endif
-#endif
-
-	SPL_NET(s);
-	if (fr_running || (fr_checkp == fr_check)) {
-		printf("IP Filter: already initialized\n");
-		SPL_X(s);
-		return EBUSY;
-	}
-
-# ifdef	IPFILTER_LOG
-	ipflog_init();
-# endif
-	if (nat_init() == -1) {
-		SPL_X(s);
-		return EIO;
-	}
-	if (fr_stateinit() == -1) {
-		SPL_X(s);
-		return EIO;
-	}
-	if (appr_init() == -1) {
-		SPL_X(s);
-		return EIO;
-	}
-
-# ifdef NETBSD_PF
-#  if (__NetBSD_Version__ >= 104200000) || (__FreeBSD_version >= 500011)
-#   if __NetBSD_Version__ >= 105110000
-	ph_inet = pfil_head_get(PFIL_TYPE_AF, AF_INET);
-#    ifdef USE_INET6
-	ph_inet6 = pfil_head_get(PFIL_TYPE_AF, AF_INET6);
-#    endif
-	if (ph_inet == NULL
-#    ifdef USE_INET6
-	    && ph_inet6 == NULL
-#    endif
-	   )
-		return ENODEV;
-
-	if (ph_inet != NULL)
-		error = pfil_add_hook((void *)fr_check_wrapper, NULL,
-				      PFIL_IN|PFIL_OUT, ph_inet);
-	else
-		error = 0;
-#  else
-	error = pfil_add_hook((void *)fr_check, PFIL_IN|PFIL_OUT,
-			      &inetsw[ip_protox[IPPROTO_IP]].pr_pfh);
-#  endif
-	if (error) {
-#   ifdef USE_INET6
-		goto pfil_error;
-#   else
-		SPL_X(s);
-		appr_unload();
-		ip_natunload();
-		fr_stateunload();
-		return error;
-#   endif
-	}
-#  else
-	pfil_add_hook((void *)fr_check, PFIL_IN|PFIL_OUT);
-#  endif
-#  ifdef USE_INET6
-#   if __NetBSD_Version__ >= 105110000
-	if (ph_inet6 != NULL)
-		error = pfil_add_hook((void *)fr_check_wrapper6, NULL,
-				      PFIL_IN|PFIL_OUT, ph_inet6);
-	else
-		error = 0;
-	if (error) {
-		pfil_remove_hook((void *)fr_check_wrapper6, NULL,
-				 PFIL_IN|PFIL_OUT, ph_inet6);
-#   else
-	error = pfil_add_hook((void *)fr_check, PFIL_IN|PFIL_OUT,
-			      &inet6sw[ip6_protox[IPPROTO_IPV6]].pr_pfh);
-	if (error) {
-		pfil_remove_hook((void *)fr_check, PFIL_IN|PFIL_OUT,
-				 &inetsw[ip_protox[IPPROTO_IP]].pr_pfh);
-#   endif
-pfil_error:
-		SPL_X(s);
-		appr_unload();
-		ip_natunload();
-		fr_stateunload();
-		return error;
-	}
-#  endif
-# endif
-
-# ifdef __sgi
-	error = ipfilter_sgi_attach();
-	if (error) {
-		SPL_X(s);
-		appr_unload();
-		ip_natunload();
-		fr_stateunload();
-		return error;
-	}
-# endif
-
-	bzero((char *)frcache, sizeof(frcache));
-	fr_savep = fr_checkp;
-	fr_checkp = fr_check;
-	fr_running = 1;
-
-	SPL_X(s);
-	if (fr_pass & FR_PASS)
-		defpass = "pass";
-	else if (fr_pass & FR_BLOCK)
-		defpass = "block";
-	else
-		defpass = "no-match -> block";
-
-	printf("%s initialized.  Default = %s all, Logging = %s\n",
-		ipfilter_version, defpass,
-# ifdef	IPFILTER_LOG
-		"enabled");
-# else
-		"disabled");
-# endif
-#ifdef  _KERNEL
-# if defined(__NetBSD__) && (__NetBSD_Version__ >= 104230000)
-	callout_init(&ipfr_slowtimer_ch);
-	callout_reset(&ipfr_slowtimer_ch, hz / 2, ipfr_slowtimer, NULL);
-# else
-#  if defined(__OpenBSD__)
-	timeout_set(&ipfr_slowtimer_ch, ipfr_slowtimer, NULL);
-	timeout_add(&ipfr_slowtimer_ch, hz/2);
-#  else
-#   if (__FreeBSD_version >= 300000) || defined(__sgi)
-	ipfr_slowtimer_ch = timeout(ipfr_slowtimer, NULL, hz/2);
-#   else
-	timeout(ipfr_slowtimer, NULL, hz/2);
-#   endif
-#  endif
-# endif
-#endif
-	return 0;
-}
-
-
-/*
- * Disable the filter by removing the hooks from the IP input/output
- * stream.
- */
-# if defined(__NetBSD__)
-int ipl_disable()
-# else
-int ipldetach()
-# endif
-{
-	int s, i;
-#if defined(NETBSD_PF) && \
-    ((__NetBSD_Version__ >= 104200000) || (__FreeBSD_version >= 500011))
-	int error = 0;
-# if __NetBSD_Version__ >= 105150000
-	struct pfil_head *ph_inet = pfil_head_get(PFIL_TYPE_AF, AF_INET);
-#  ifdef USE_INET6
-	struct pfil_head *ph_inet6 = pfil_head_get(PFIL_TYPE_AF, AF_INET6);
-#  endif
-# endif
-#endif
-
-#ifdef  _KERNEL
-# if defined(__NetBSD__) && (__NetBSD_Version__ >= 104230000)
-	callout_stop(&ipfr_slowtimer_ch);
-# else
-#  if (__FreeBSD_version >= 300000)
-	untimeout(ipfr_slowtimer, NULL, ipfr_slowtimer_ch);
-#  else
-#  ifdef __sgi
-	untimeout(ipfr_slowtimer_ch);
-#   else
-#    if defined(__OpenBSD__)
-	timeout_del(&ipfr_slowtimer_ch);
-#    else
-	untimeout(ipfr_slowtimer, NULL);
-#    endif /* OpenBSD */
-#   endif /* __sgi */
-#  endif /* FreeBSD */
-# endif /* NetBSD */
-#endif
-	SPL_NET(s);
-	if (!fr_running)
-	{
-		printf("IP Filter: not initialized\n");
-		SPL_X(s);
-		return 0;
-	}
-
-	printf("%s unloaded\n", ipfilter_version);
-
-	fr_checkp = fr_savep;
-	i = frflush(IPL_LOGIPF, 0, FR_INQUE|FR_OUTQUE|FR_INACTIVE);
-	i += frflush(IPL_LOGIPF, 0, FR_INQUE|FR_OUTQUE);
-	fr_running = 0;
-
-# ifdef NETBSD_PF
-#  if ((__NetBSD_Version__ >= 104200000) || (__FreeBSD_version >= 500011))
-#   if __NetBSD_Version__ >= 105110000
-	if (ph_inet != NULL)
-		error = pfil_remove_hook((void *)fr_check_wrapper, NULL,
-					 PFIL_IN|PFIL_OUT, ph_inet);
-	else
-		error = 0;
-#   else
-	error = pfil_remove_hook((void *)fr_check, PFIL_IN|PFIL_OUT,
-				 &inetsw[ip_protox[IPPROTO_IP]].pr_pfh);
-#   endif
-	if (error) {
-		SPL_X(s);
-		return error;
-	}
-#  else
-	pfil_remove_hook((void *)fr_check, PFIL_IN|PFIL_OUT);
-#  endif
-#  ifdef USE_INET6
-#   if __NetBSD_Version__ >= 105110000
-	if (ph_inet6 != NULL)
-		error = pfil_remove_hook((void *)fr_check_wrapper6, NULL,
-					 PFIL_IN|PFIL_OUT, ph_inet6);
-	else
-		error = 0;
-#   else
-	error = pfil_remove_hook((void *)fr_check, PFIL_IN|PFIL_OUT,
-				 &inet6sw[ip6_protox[IPPROTO_IPV6]].pr_pfh);
-#   endif
-	if (error) {
-		SPL_X(s);
-		return error;
-	}
-#  endif
-# endif
-
-# ifdef __sgi
-	ipfilter_sgi_detach();
-# endif
-
-	appr_unload();
-	ipfr_unload();
-	ip_natunload();
-	fr_stateunload();
-	fr_authunload();
-
-	SPL_X(s);
-	return 0;
-}
-#endif /* _KERNEL */
-
-
-static	int	frzerostats(data)
-caddr_t	data;
-{
-	friostat_t fio;
-	int error;
-
-	fr_getstat(&fio);
-	error = IWCOPYPTR((caddr_t)&fio, data, sizeof(fio));
-	if (error)
-		return EFAULT;
-
-	bzero((char *)frstats, sizeof(*frstats) * 2);
-
-	return 0;
-}
-
-
-/*
- * Filter ioctl interface.
- */
-#ifdef __sgi
-int IPL_EXTERN(ioctl)(dev_t dev, int cmd, caddr_t data, int mode
-# ifdef _KERNEL
-	, cred_t *cp, int *rp
-# endif
-)
-#else
-int IPL_EXTERN(ioctl)(dev, cmd, data, mode
-# if (defined(_KERNEL) && ((_BSDI_VERSION >= 199510) || (BSD >= 199506) || \
-       (NetBSD >= 199511) || (__FreeBSD_version >= 220000) || \
-       defined(__OpenBSD__)))
-, p)
-struct proc *p;
-# else
-)
-# endif
-dev_t dev;
-# if defined(__NetBSD__) || defined(__OpenBSD__) || \
-	(_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000)
-u_long cmd;
-# else
-int cmd;
-# endif
-caddr_t data;
-int mode;
-#endif /* __sgi */
-{
-#if defined(_KERNEL) && !SOLARIS
-	int s;
-#endif
-	int error = 0, unit = 0, tmp;
-
-#if (BSD >= 199306) && defined(_KERNEL)
-	if ((securelevel >= 3) && (mode & FWRITE))
-		return EPERM;
-#endif
-#ifdef	_KERNEL
-	unit = GET_MINOR(dev);
-	if ((IPL_LOGMAX < unit) || (unit < 0))
-		return ENXIO;
-#else
-	unit = dev;
-#endif
-
-	if (fr_running == 0 && (cmd != SIOCFRENB || unit != IPL_LOGIPF))
-		return ENODEV;
-
-	SPL_NET(s);
-
-	if (unit == IPL_LOGNAT) {
-		if (fr_running)
-			error = nat_ioctl(data, cmd, mode);
-		else
-			error = EIO;
-		SPL_X(s);
-		return error;
-	}
-	if (unit == IPL_LOGSTATE) {
-		if (fr_running)
-			error = fr_state_ioctl(data, cmd, mode);
-		else
-			error = EIO;
-		SPL_X(s);
-		return error;
-	}
-	if (unit == IPL_LOGAUTH) {
-		if (!fr_running)
-			error = EIO;
-		else
-			if ((cmd == SIOCADAFR) || (cmd == SIOCRMAFR)) {
-				if (!(mode & FWRITE))  {
-					error = EPERM;
-				} else {
-					error = frrequest(unit, cmd, data,
-							  fr_active);
-				}
-			} else {
-				error = fr_auth_ioctl(data, mode, cmd);
-			}
-		SPL_X(s);
-		return error;
-	}
-
-	switch (cmd) {
-	case FIONREAD :
-#ifdef IPFILTER_LOG
-		error = IWCOPY((caddr_t)&iplused[IPL_LOGIPF], (caddr_t)data,
-			       sizeof(iplused[IPL_LOGIPF]));
-#endif
-		break;
-#if (!defined(IPFILTER_LKM) || defined(__NetBSD__)) && defined(_KERNEL)
-	case SIOCFRENB :
-	{
-		u_int	enable;
-
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else {
-			error = IRCOPY(data, (caddr_t)&enable, sizeof(enable));
-			if (error)
-				break;
-			if (enable)
-# if defined(__NetBSD__) || defined(__OpenBSD__)
-				error = ipl_enable();
-# else
-				error = iplattach();
-# endif
-			else
-# if defined(__NetBSD__)
-				error = ipl_disable();
-# else
-				error = ipldetach();
-# endif
-		}
-		break;
-	}
-#endif
-	case SIOCSETFF :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else
-			error = IRCOPY(data, (caddr_t)&fr_flags,
-				       sizeof(fr_flags));
-		break;
-	case SIOCGETFF :
-		error = IWCOPY((caddr_t)&fr_flags, data, sizeof(fr_flags));
-		break;
-	case SIOCINAFR :
-	case SIOCRMAFR :
-	case SIOCADAFR :
-	case SIOCZRLST :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else
-			error = frrequest(unit, cmd, data, fr_active);
-		break;
-	case SIOCINIFR :
-	case SIOCRMIFR :
-	case SIOCADIFR :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else
-			error = frrequest(unit, cmd, data, 1 - fr_active);
-		break;
-	case SIOCSWAPA :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else {
-			bzero((char *)frcache, sizeof(frcache[0]) * 2);
-			*(u_int *)data = fr_active;
-			fr_active = 1 - fr_active;
-		}
-		break;
-	case SIOCGETFS :
-	{
-		friostat_t	fio;
-
-		fr_getstat(&fio);
-		error = IWCOPYPTR((caddr_t)&fio, data, sizeof(fio));
-		if (error)
-			error = EFAULT;
-		break;
-	}
-	case	SIOCFRZST :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else
-			error = frzerostats(data);
-		break;
-	case	SIOCIPFFL :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else {
-			error = IRCOPY(data, (caddr_t)&tmp, sizeof(tmp));
-			if (!error) {
-				tmp = frflush(unit, 4, tmp);
-				error = IWCOPY((caddr_t)&tmp, data,
-					       sizeof(tmp));
-			}
-		}
-		break;
-#ifdef	USE_INET6
-	case	SIOCIPFL6 :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else {
-			error = IRCOPY(data, (caddr_t)&tmp, sizeof(tmp));
-			if (!error) {
-				tmp = frflush(unit, 6, tmp);
-				error = IWCOPY((caddr_t)&tmp, data,
-					       sizeof(tmp));
-			}
-		}
-		break;
-#endif
-	case SIOCSTLCK :
-		error = IRCOPY(data, (caddr_t)&tmp, sizeof(tmp));
-		if (!error) {
-			fr_state_lock = tmp;
-			fr_nat_lock = tmp;
-			fr_frag_lock = tmp;
-			fr_auth_lock = tmp;
-		} else
-			error = EFAULT;
-		break;
-#ifdef	IPFILTER_LOG
-	case	SIOCIPFFB :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else
-			*(int *)data = ipflog_clear(unit);
-		break;
-#endif /* IPFILTER_LOG */
-	case SIOCGFRST :
-		error = IWCOPYPTR((caddr_t)ipfr_fragstats(), data,
-				  sizeof(ipfrstat_t));
-		if (error)
-			error = EFAULT;
-		break;
-	case SIOCFRSYN :
-		if (!(mode & FWRITE))
-			error = EPERM;
-		else {
-#if defined(_KERNEL) && defined(__sgi)
-			ipfsync();
-#endif
-			frsync();
-		}
-		break;
-	default :
-		error = EINVAL;
-		break;
-	}
-	SPL_X(s);
-	return error;
-}
-
-
-void fr_forgetifp(ifp)
-void *ifp;
-{
-	register frentry_t *f;
-
-	WRITE_ENTER(&ipf_mutex);
-	for (f = ipacct[0][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-	for (f = ipacct[1][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-	for (f = ipfilter[0][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-	for (f = ipfilter[1][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-#ifdef	USE_INET6
-	for (f = ipacct6[0][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-	for (f = ipacct6[1][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-	for (f = ipfilter6[0][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-	for (f = ipfilter6[1][fr_active]; (f != NULL); f = f->fr_next)
-		if (f->fr_ifa == ifp)
-			f->fr_ifa = (void *)-1;
-#endif
-	RWLOCK_EXIT(&ipf_mutex);
-	ip_natsync(ifp);
-}
-
-
-static int frrequest(unit, req, data, set)
-int unit;
-#if defined(__NetBSD__) || defined(__OpenBSD__) || (__FreeBSD_version >= 300003)
-u_long req;
-#else
-int req;
-#endif
-int set;
-caddr_t data;
-{
-	register frentry_t *fp, *f, **fprev;
-	register frentry_t **ftail;
-	frgroup_t *fg = NULL;
-	int error = 0, in, i;
-	u_int   *p, *pp;
-	frentry_t frd;
-	frdest_t *fdp;
-	u_int group;
-
-	fp = &frd;
-	error = IRCOPYPTR(data, (caddr_t)fp, sizeof(*fp));
-	if (error)
-		return EFAULT;
-	fp->fr_ref = 0;
-#if (BSD >= 199306) && defined(_KERNEL)
-	if ((securelevel > 0) && (fp->fr_func != NULL))
-		return EPERM;
-#endif
-
-	/*
-	 * Check that the group number does exist and that if a head group
-	 * has been specified, doesn't exist.
-	 */
-	if ((req != SIOCZRLST) && ((req == SIOCINAFR) || (req == SIOCINIFR) ||
-	     (req == SIOCADAFR) || (req == SIOCADIFR)) && fp->fr_grhead &&
-	    fr_findgroup((u_int)fp->fr_grhead, fp->fr_flags, unit, set, NULL))
-		return EEXIST;
-	if ((req != SIOCZRLST) && fp->fr_group &&
-	    !fr_findgroup((u_int)fp->fr_group, fp->fr_flags, unit, set, NULL))
-		return ESRCH;
-
-	in = (fp->fr_flags & FR_INQUE) ? 0 : 1;
-
-	if (unit == IPL_LOGAUTH)
-		ftail = fprev = &ipauth;
-	else if ((fp->fr_flags & FR_ACCOUNT) && (fp->fr_v == 4))
-		ftail = fprev = &ipacct[in][set];
-	else if ((fp->fr_flags & (FR_OUTQUE|FR_INQUE)) && (fp->fr_v == 4))
-		ftail = fprev = &ipfilter[in][set];
-#ifdef	USE_INET6
-	else if ((fp->fr_flags & FR_ACCOUNT) && (fp->fr_v == 6))
-		ftail = fprev = &ipacct6[in][set];
-	else if ((fp->fr_flags & (FR_OUTQUE|FR_INQUE)) && (fp->fr_v == 6))
-		ftail = fprev = &ipfilter6[in][set];
-#endif
-	else
-		return ESRCH;
-
-	if ((group = fp->fr_group)) {
-		if (!(fg = fr_findgroup(group, fp->fr_flags, unit, set, NULL)))
-			return ESRCH;
-		ftail = fprev = fg->fg_start;
-	}
-
-	bzero((char *)frcache, sizeof(frcache[0]) * 2);
-
-	for (i = 0; i < 4; i++) {
-		if ((fp->fr_ifnames[i][1] == '\0') &&
-		    ((fp->fr_ifnames[i][0] == '-') ||
-		     (fp->fr_ifnames[i][0] == '*'))) {
-			fp->fr_ifas[i] = NULL;
-		} else if (*fp->fr_ifnames[i]) {
-			fp->fr_ifas[i] = GETUNIT(fp->fr_ifnames[i], fp->fr_v);
-			if (!fp->fr_ifas[i])
-				fp->fr_ifas[i] = (void *)-1;
-		}
-	}
-
-	fdp = &fp->fr_dif;
-	fp->fr_flags &= ~FR_DUP;
-	if (*fdp->fd_ifname) {
-		fdp->fd_ifp = GETUNIT(fdp->fd_ifname, fp->fr_v);
-		if (!fdp->fd_ifp)
-			fdp->fd_ifp = (struct ifnet *)-1;
-		else
-			fp->fr_flags |= FR_DUP;
-	}
-
-	fdp = &fp->fr_tif;
-	if (*fdp->fd_ifname) {
-		fdp->fd_ifp = GETUNIT(fdp->fd_ifname, fp->fr_v);
-		if (!fdp->fd_ifp)
-			fdp->fd_ifp = (struct ifnet *)-1;
-	}
-
-	/*
-	 * Look for a matching filter rule, but don't include the next or
-	 * interface pointer in the comparison (fr_next, fr_ifa).
-	 */
-	for (fp->fr_cksum = 0, p = (u_int *)&fp->fr_ip, pp = &fp->fr_cksum;
-	     p < pp; p++)
-		fp->fr_cksum += *p;
-
-	for (; (f = *ftail); ftail = &f->fr_next)
-		if ((fp->fr_cksum == f->fr_cksum) &&
-		    !bcmp((char *)&f->fr_ip, (char *)&fp->fr_ip, FR_CMPSIZ))
-			break;
-
-	/*
-	 * If zero'ing statistics, copy current to caller and zero.
-	 */
-	if (req == SIOCZRLST) {
-		if (!f)
-			return ESRCH;
-		error = IWCOPYPTR((caddr_t)f, data, sizeof(*f));
-		if (error)
-			return EFAULT;
-		f->fr_hits = 0;
-		f->fr_bytes = 0;
-		return 0;
-	}
-
-	if (!f) {
-		if (req != SIOCINAFR && req != SIOCINIFR)
-			while ((f = *ftail))
-				ftail = &f->fr_next;
-		else {
-			ftail = fprev;
-			if (fp->fr_hits) {
-				while (--fp->fr_hits && (f = *ftail))
-					ftail = &f->fr_next;
-			}
-			f = NULL;
-		}
-	}
-
-	if (req == SIOCRMAFR || req == SIOCRMIFR) {
-		if (!f)
-			error = ESRCH;
-		else {
-			/*
-			 * Only return EBUSY if there is a group list, else
-			 * it's probably just state information referencing
-			 * the rule.
-			 */
-			if ((f->fr_ref > 1) && f->fr_grp)
-				return EBUSY;
-			if (fg && fg->fg_head)
-				fg->fg_head->fr_ref--;
-			if (unit == IPL_LOGAUTH) {
-				return fr_preauthcmd(req, f, ftail);
-			}
-			if (f->fr_grhead)
-				fr_delgroup((u_int)f->fr_grhead, fp->fr_flags,
-					    unit, set);
-			fixskip(fprev, f, -1);
-			*ftail = f->fr_next;
-			f->fr_next = NULL;
-			f->fr_ref--;
-			if (f->fr_ref == 0)
-				KFREE(f);
-		}
-	} else {
-		if (f)
-			error = EEXIST;
-		else {
-			if (unit == IPL_LOGAUTH) {
-				return fr_preauthcmd(req, fp, ftail);
-			}
-			KMALLOC(f, frentry_t *);
-			if (f != NULL) {
-				if (fg && fg->fg_head)
-					fg->fg_head->fr_ref++;
-				bcopy((char *)fp, (char *)f, sizeof(*f));
-				f->fr_ref = 1;
-				f->fr_hits = 0;
-				f->fr_next = *ftail;
-				*ftail = f;
-				if (req == SIOCINIFR || req == SIOCINAFR)
-					fixskip(fprev, f, 1);
-				f->fr_grp = NULL;
-				if ((group = f->fr_grhead))
-					fg = fr_addgroup(group, f, unit, set);
-			} else
-				error = ENOMEM;
-		}
-	}
-	return (error);
-}
-
-
-#ifdef	_KERNEL
-/*
- * routines below for saving IP headers to buffer
- */
-# ifdef __sgi
-#  ifdef _KERNEL
-int IPL_EXTERN(open)(dev_t *pdev, int flags, int devtype, cred_t *cp)
-#  else
-int IPL_EXTERN(open)(dev_t dev, int flags)
-#  endif
-# else
-int IPL_EXTERN(open)(dev, flags
-#  if ((_BSDI_VERSION >= 199510) || (BSD >= 199506) || (NetBSD >= 199511) || \
-     (__FreeBSD_version >= 220000) || defined(__OpenBSD__)) && defined(_KERNEL)
-, devtype, p)
-int devtype;
-struct proc *p;
-#  else
-)
-#  endif
-dev_t dev;
-int flags;
-# endif /* __sgi */
-{
-# if defined(__sgi) && defined(_KERNEL)
-	u_int min = geteminor(*pdev);
-# else
-	u_int min = GET_MINOR(dev);
-# endif
-
-	if (IPL_LOGMAX < min)
-		min = ENXIO;
-	else
-		min = 0;
-	return min;
-}
-
-
-# ifdef __sgi
-int IPL_EXTERN(close)(dev_t dev, int flags, int devtype, cred_t *cp)
-#else
-int IPL_EXTERN(close)(dev, flags
-#  if ((_BSDI_VERSION >= 199510) || (BSD >= 199506) || (NetBSD >= 199511) || \
-     (__FreeBSD_version >= 220000) || defined(__OpenBSD__)) && defined(_KERNEL)
-, devtype, p)
-int devtype;
-struct proc *p;
-#  else
-)
-#  endif
-dev_t dev;
-int flags;
-# endif /* __sgi */
-{
-	u_int	min = GET_MINOR(dev);
-
-	if (IPL_LOGMAX < min)
-		min = ENXIO;
-	else
-		min = 0;
-	return min;
-}
-
-/*
- * iplread/ipllog
- * both of these must operate with at least splnet() lest they be
- * called during packet processing and cause an inconsistancy to appear in
- * the filter lists.
- */
-# ifdef __sgi
-int IPL_EXTERN(read)(dev_t dev, uio_t *uio, cred_t *crp)
-# else
-#  if BSD >= 199306
-int IPL_EXTERN(read)(dev, uio, ioflag)
-int ioflag;
-#  else
-int IPL_EXTERN(read)(dev, uio)
-#  endif
-dev_t dev;
-register struct uio *uio;
-# endif /* __sgi */
-{
-# ifdef IPFILTER_LOG
-	return ipflog_read(GET_MINOR(dev), uio);
-# else
-	return ENXIO;
-# endif
-}
-
-
-/*
- * send_reset - this could conceivably be a call to tcp_respond(), but that
- * requires a large amount of setting up and isn't any more efficient.
- */
-int send_reset(oip, fin)
-struct ip *oip;
-fr_info_t *fin;
-{
-	struct tcphdr *tcp, *tcp2;
-	int tlen = 0, hlen;
-	struct mbuf *m;
-#ifdef	USE_INET6
-	ip6_t *ip6, *oip6 = (ip6_t *)oip;
-#endif
-	ip_t *ip;
-
-	tcp = (struct tcphdr *)fin->fin_dp;
-	if (tcp->th_flags & TH_RST)
-		return -1;		/* feedback loop */
-# if	(BSD < 199306) || defined(__sgi)
-	m = m_get(M_DONTWAIT, MT_HEADER);
-# else
-	m = m_gethdr(M_DONTWAIT, MT_HEADER);
-# endif
-	if (m == NULL)
-		return ENOBUFS;
-	if (m == NULL)
-		return -1;
-
-	tlen = fin->fin_dlen - (tcp->th_off << 2) +
-			((tcp->th_flags & TH_SYN) ? 1 : 0) +
-			((tcp->th_flags & TH_FIN) ? 1 : 0);
-
-#ifdef	USE_INET6
-	hlen = (fin->fin_v == 6) ? sizeof(ip6_t) : sizeof(ip_t);
-#else
-	hlen = sizeof(ip_t);
-#endif
-	m->m_len = sizeof(*tcp2) + hlen;
-# if	BSD >= 199306
-	m->m_data += max_linkhdr;
-	m->m_pkthdr.len = m->m_len;
-	m->m_pkthdr.rcvif = (struct ifnet *)0;
-# endif
-	ip = mtod(m, struct ip *);
-# ifdef	USE_INET6
-	ip6 = (ip6_t *)ip;
-# endif
-	bzero((char *)ip, sizeof(*tcp2) + hlen);
-	tcp2 = (struct tcphdr *)((char *)ip + hlen);
-
-	tcp2->th_sport = tcp->th_dport;
-	tcp2->th_dport = tcp->th_sport;
-	if (tcp->th_flags & TH_ACK) {
-		tcp2->th_seq = tcp->th_ack;
-		tcp2->th_flags = TH_RST;
-	} else {
-		tcp2->th_ack = ntohl(tcp->th_seq);
-		tcp2->th_ack += tlen;
-		tcp2->th_ack = htonl(tcp2->th_ack);
-		tcp2->th_flags = TH_RST|TH_ACK;
-	}
-	tcp2->th_off = sizeof(*tcp2) >> 2;
-# ifdef	USE_INET6
-	if (fin->fin_v == 6) {
-		ip6->ip6_plen = htons(sizeof(struct tcphdr));
-		ip6->ip6_nxt = IPPROTO_TCP;
-		ip6->ip6_src = oip6->ip6_dst;
-		ip6->ip6_dst = oip6->ip6_src;
-		tcp2->th_sum = in6_cksum(m, IPPROTO_TCP,
-					 sizeof(*ip6), sizeof(*tcp2));
-		return send_ip(oip, fin, &m);
-	}
-# endif
-	ip->ip_p = IPPROTO_TCP;
-	ip->ip_len = htons(sizeof(struct tcphdr));
-	ip->ip_src.s_addr = oip->ip_dst.s_addr;
-	ip->ip_dst.s_addr = oip->ip_src.s_addr;
-	tcp2->th_sum = in_cksum(m, hlen + sizeof(*tcp2));
-	ip->ip_len = hlen + sizeof(*tcp2);
-	return send_ip(oip, fin, &m);
-}
-
-
-/*
- * Send an IP(v4/v6) datagram out into the network
- */
-static int send_ip(oip, fin, mp)
-ip_t *oip;
-fr_info_t *fin;
-struct mbuf **mp;
-{
-	struct mbuf *m = *mp;
-	int error, hlen;
-	fr_info_t frn;
-	ip_t *ip;
-
-	bzero((char *)&frn, sizeof(frn));
-	frn.fin_ifp = fin->fin_ifp;
-	frn.fin_v = fin->fin_v;
-	frn.fin_out = fin->fin_out;
-	frn.fin_mp = mp;
-
-	ip = mtod(m, ip_t *);
-	hlen = sizeof(*ip);
-
-	ip->ip_v = fin->fin_v;
-	if (ip->ip_v == 4) {
-		ip->ip_hl = (sizeof(*oip) >> 2);
-		ip->ip_v = IPVERSION;
-		ip->ip_tos = oip->ip_tos;
-		ip->ip_id = oip->ip_id;
-
-# if defined(__NetBSD__) || \
-     (defined(__OpenBSD__) && (OpenBSD >= 200012))
-		if (ip_mtudisc != 0)
-			ip->ip_off = IP_DF;
-# else
-#  if defined(__sgi)
-		if (ip->ip_p == IPPROTO_TCP && tcp_mtudisc != 0)
-			ip->ip_off = IP_DF;
-#  endif
-# endif
-
-# if (BSD < 199306) || defined(__sgi)
-		ip->ip_ttl = tcp_ttl;
-# else
-		ip->ip_ttl = ip_defttl;
-# endif
-		ip->ip_sum = 0;
-		frn.fin_dp = (char *)(ip + 1);
-	}
-# ifdef	USE_INET6
-	else if (ip->ip_v == 6) {
-		ip6_t *ip6 = (ip6_t *)ip;
-
-		hlen = sizeof(*ip6);
-		ip6->ip6_hlim = 127;
-		frn.fin_dp = (char *)(ip6 + 1);
-	}
-# endif
-# ifdef	IPSEC
-	m->m_pkthdr.rcvif = NULL;
-# endif
-
-	if (fr_makefrip(hlen, ip, &frn) == 0)
-		error = ipfr_fastroute(m, mp, &frn, NULL);
-	else
-		error = EINVAL;
-	return error;
-}
-
-
-int send_icmp_err(oip, type, fin, dst)
-ip_t *oip;
-int type;
-fr_info_t *fin;
-int dst;
-{
-	int err, hlen = 0, xtra = 0, iclen, ohlen = 0, avail, code;
-	u_short shlen, slen = 0, soff = 0;
-	struct in_addr dst4;
-	struct icmp *icmp;
-	struct mbuf *m;
-	void *ifp;
-#ifdef USE_INET6
-	ip6_t *ip6, *oip6 = (ip6_t *)oip;
-	struct in6_addr dst6;
-#endif
-	ip_t *ip;
-
-	if ((type < 0) || (type > ICMP_MAXTYPE))
-		return -1;
-
-	code = fin->fin_icode;
-#ifdef USE_INET6
-	if ((code < 0) || (code > sizeof(icmptoicmp6unreach)/sizeof(int)))
-		return -1;
-#endif
-
-	avail = 0;
-	m = NULL;
-	ifp = fin->fin_ifp;
-	if (fin->fin_v == 4) {
-		if ((oip->ip_p == IPPROTO_ICMP) &&
-		    !(fin->fin_fi.fi_fl & FI_SHORT))
-			switch (ntohs(fin->fin_data[0]) >> 8)
-			{
-			case ICMP_ECHO :
-			case ICMP_TSTAMP :
-			case ICMP_IREQ :
-			case ICMP_MASKREQ :
-				break;
-			default :
-				return 0;
-			}
-
-# if	(BSD < 199306) || defined(__sgi)
-		avail = MLEN;
-		m = m_get(M_DONTWAIT, MT_HEADER);
-# else
-		avail = MHLEN;
-		m = m_gethdr(M_DONTWAIT, MT_HEADER);
-# endif
-		if (m == NULL)
-			return ENOBUFS;
-
-		if (dst == 0) {
-			if (fr_ifpaddr(4, ifp, &dst4) == -1)
-				return -1;
-		} else
-			dst4.s_addr = oip->ip_dst.s_addr;
-
-		hlen = sizeof(ip_t);
-		ohlen = oip->ip_hl << 2;
-		xtra = 8;
-	}
-
-#ifdef	USE_INET6
-	else if (fin->fin_v == 6) {
-		hlen = sizeof(ip6_t);
-		ohlen = sizeof(ip6_t);
-		type = icmptoicmp6types[type];
-		if (type == ICMP6_DST_UNREACH)
-			code = icmptoicmp6unreach[code];
-
-		MGETHDR(m, M_DONTWAIT, MT_HEADER);
-		if (!m)
-			return ENOBUFS;
-
-		MCLGET(m, M_DONTWAIT);
-		if ((m->m_flags & M_EXT) == 0) {
-			m_freem(m);
-			return ENOBUFS;
-		}
-# ifdef	M_TRAILINGSPACE
-		m->m_len = 0;
-		avail = M_TRAILINGSPACE(m);
-# else
-		avail = (m->m_flags & M_EXT) ? MCLBYTES : MHLEN;
-# endif
-		xtra = MIN(ntohs(oip6->ip6_plen) + sizeof(ip6_t),
-			   avail - hlen - sizeof(*icmp) - max_linkhdr);
-		if (dst == 0) {
-			if (fr_ifpaddr(6, ifp, (struct in_addr *)&dst6) == -1)
-				return -1;
-		} else
-			dst6 = oip6->ip6_dst;
-	}
-#endif
-
-	iclen = hlen + sizeof(*icmp);
-# if	BSD >= 199306
-	avail -= (max_linkhdr + iclen);
-	m->m_data += max_linkhdr;
-	m->m_pkthdr.rcvif = (struct ifnet *)0;
-	if (xtra > avail)
-		xtra = avail;
-	iclen += xtra;
-	m->m_pkthdr.len = iclen;
-#else
-	avail -= (m->m_off + iclen);
-	if (xtra > avail)
-		xtra = avail;
-	iclen += xtra;
-#endif
-	m->m_len = iclen;
-	ip = mtod(m, ip_t *);
-	icmp = (struct icmp *)((char *)ip + hlen);
-	bzero((char *)ip, iclen);
-
-	icmp->icmp_type = type;
-	icmp->icmp_code = fin->fin_icode;
-	icmp->icmp_cksum = 0;
-#ifdef	icmp_nextmtu
-	if (type == ICMP_UNREACH &&
-	    fin->fin_icode == ICMP_UNREACH_NEEDFRAG && ifp)
-		icmp->icmp_nextmtu = htons(((struct ifnet *) ifp)->if_mtu);
-#endif
-
-	if (avail) {
-		slen = oip->ip_len;
-		oip->ip_len = htons(oip->ip_len);
-		soff = oip->ip_off;
-		oip->ip_off = htons(oip->ip_off);
-		bcopy((char *)oip, (char *)&icmp->icmp_ip, MIN(ohlen, avail));
-		oip->ip_len = slen;
-		oip->ip_off = soff;
-		avail -= MIN(ohlen, avail);
-	}
-
-#ifdef	USE_INET6
-	ip6 = (ip6_t *)ip;
-	if (fin->fin_v == 6) {
-		ip6->ip6_flow = 0;
-		ip6->ip6_plen = htons(iclen - hlen);
-		ip6->ip6_nxt = IPPROTO_ICMPV6;
-		ip6->ip6_hlim = 0;
-		ip6->ip6_src = dst6;
-		ip6->ip6_dst = oip6->ip6_src;
-		if (avail)
-			bcopy((char *)oip + ohlen,
-			      (char *)&icmp->icmp_ip + ohlen, avail);
-		icmp->icmp_cksum = in6_cksum(m, IPPROTO_ICMPV6,
-					     sizeof(*ip6), iclen - hlen);
-	} else
-#endif
-	{
-
-		ip->ip_src.s_addr = dst4.s_addr;
-		ip->ip_dst.s_addr = oip->ip_src.s_addr;
-
-		if (avail > 8)
-			avail = 8;
-		if (avail)
-			bcopy((char *)oip + ohlen,
-			      (char *)&icmp->icmp_ip + ohlen, avail);
-		icmp->icmp_cksum = ipf_cksum((u_short *)icmp,
-					     sizeof(*icmp) + 8);
-		ip->ip_len = iclen;
-		ip->ip_p = IPPROTO_ICMP;
-	}
-
-	shlen = fin->fin_hlen;
-	fin->fin_hlen = hlen;
-	err = send_ip(oip, fin, &m);
-	fin->fin_hlen = shlen;
-
-	return err;
-}
-
-
-# if !defined(IPFILTER_LKM) && !defined(__sgi) && \
-     (!defined(__FreeBSD_version) || (__FreeBSD_version < 300000))
-#  if	(BSD < 199306)
-int iplinit __P((void));
-
-int
-#  else
-void iplinit __P((void));
-
-void
-#  endif
-iplinit()
-{
-
-#  if defined(__NetBSD__) || defined(__OpenBSD__)
-	if (ipl_enable() != 0)
-#  else
-	if (iplattach() != 0)
-#  endif
-	{
-		printf("IP Filter failed to attach\n");
-	}
-	ip_init();
-}
-# endif /* ! __NetBSD__ */
-
-
-/*
- * Return the length of the entire mbuf.
- */
-size_t mbufchainlen(m0)
-register struct mbuf *m0;
-{
-#if BSD >= 199306
-	return m0->m_pkthdr.len;
-#else
-	register size_t len = 0;
-
-	for (; m0; m0 = m0->m_next)
-		len += m0->m_len;
-	return len;
-#endif
-}
-
-
-int ipfr_fastroute(m0, mpp, fin, fdp)
-struct mbuf *m0, **mpp;
-fr_info_t *fin;
-frdest_t *fdp;
-{
-	register struct ip *ip, *mhip;
-	register struct mbuf *m = m0;
-	register struct route *ro;
-	int len, off, error = 0, hlen, code, sout;
-	struct ifnet *ifp, *sifp;
-	struct sockaddr_in *dst;
-	struct route iproute;
-	frentry_t *fr;
-
-	ip = NULL;
-	ro = NULL;
-	ifp = NULL;
-	ro = &iproute;
-	ro->ro_rt = NULL;
-
-#ifdef	USE_INET6
-	if (fin->fin_v == 6) {
-		error = ipfr_fastroute6(m0, mpp, fin, fdp);
-		if (error != 0)
-			goto bad;
-		goto done;
-	}
-#else
-	if (fin->fin_v == 6)
-		goto bad;
-#endif
-
-#ifdef	M_WRITABLE
-	/*
-	 * HOT FIX/KLUDGE:
-	 *
-	 * If the mbuf we're about to send is not writable (because of
-	 * a cluster reference, for example) we'll need to make a copy
-	 * of it since this routine modifies the contents.
-	 *
-	 * If you have non-crappy network hardware that can transmit data
-	 * from the mbuf, rather than making a copy, this is gonna be a
-	 * problem.
-	 */
-	if (M_WRITABLE(m) == 0) {
-		if ((m0 = m_dup(m, M_DONTWAIT)) != NULL) {
-			m_freem(*mpp);
-			*mpp = m0;
-			m = m0;
-		} else {
-			error = ENOBUFS;
-			m_freem(*mpp);
-			goto done;
-		}
-	}
-#endif
-
-	hlen = fin->fin_hlen;
-	ip = mtod(m0, struct ip *);
-
-#if defined(__NetBSD__) && defined(M_CSUM_IPv4)
-	/*
-	 * Clear any in-bound checksum flags for this packet.
-	 */
-# if (__NetBSD_Version__ > 105009999)
-	m0->m_pkthdr.csum_flags = 0;
-# else
-	m0->m_pkthdr.csuminfo = 0;
-# endif
-#endif /* __NetBSD__ && M_CSUM_IPv4 */
-
-	/*
-	 * Route packet.
-	 */
-#if (defined(IRIX) && (IRIX >= 605))
-	ROUTE_RDLOCK();
-#endif
-	bzero((caddr_t)ro, sizeof (*ro));
-	dst = (struct sockaddr_in *)&ro->ro_dst;
-	dst->sin_family = AF_INET;
-	dst->sin_addr = ip->ip_dst;
-
-	fr = fin->fin_fr;
-	if (fdp != NULL)
-		ifp = fdp->fd_ifp;
-	else
-		ifp = fin->fin_ifp;
-
-	/*
-	 * In case we're here due to "to <if>" being used with "keep state",
-	 * check that we're going in the correct direction.
-	 */
-	if ((fr != NULL) && (fin->fin_rev != 0)) {
-		if ((ifp != NULL) && (fdp == &fr->fr_tif)) {
-# if (defined(IRIX) && (IRIX >= 605))
-			ROUTE_UNLOCK();
-# endif
-			return 0;
-		}
-	} else if (fdp != NULL) {
-		if (fdp->fd_ip.s_addr != 0)
-			dst->sin_addr = fdp->fd_ip;
-	}
-
-# if BSD >= 199306
-	dst->sin_len = sizeof(*dst);
-# endif
-# if	(BSD >= 199306) && !defined(__NetBSD__) && !defined(__bsdi__) && \
-	!defined(__OpenBSD__)
-#  ifdef	RTF_CLONING
-	rtalloc_ign(ro, RTF_CLONING);
-#  else
-	rtalloc_ign(ro, RTF_PRCLONING);
-#  endif
-# else
-	rtalloc(ro);
-# endif
-
-	if (!ifp) {
-		if (!fr || !(fr->fr_flags & FR_FASTROUTE)) {
-			error = -2;
-# if (defined(IRIX) && (IRIX >= 605))
-			ROUTE_UNLOCK();
-# endif
-			goto bad;
-		}
-	}
-
-	if ((ifp == NULL) && (ro->ro_rt != NULL))
-		ifp = ro->ro_rt->rt_ifp;
-
-	if ((ro->ro_rt == NULL) || (ifp == NULL)) {
-		if (in_localaddr(ip->ip_dst))
-			error = EHOSTUNREACH;
-		else
-			error = ENETUNREACH;
-# if (defined(IRIX) && (IRIX >= 605))
-			ROUTE_UNLOCK();
-# endif
-		goto bad;
-	}
-
-	if (ro->ro_rt->rt_flags & RTF_GATEWAY) {
-#if (BSD >= 199306) || (defined(IRIX) && (IRIX >= 605))
-		dst = (struct sockaddr_in *)ro->ro_rt->rt_gateway;
-#else
-		dst = (struct sockaddr_in *)&ro->ro_rt->rt_gateway;
-#endif
-	}
-	ro->ro_rt->rt_use++;
-
-#if (defined(IRIX) && (IRIX > 602))
-	ROUTE_UNLOCK();
-#endif
-
-	/*
-	 * For input packets which are being "fastrouted", they won't
-	 * go back through output filtering and miss their chance to get
-	 * NAT'd and counted.
-	 */
-	if (fin->fin_out == 0) {
-		sifp = fin->fin_ifp;
-		sout = fin->fin_out;
-		fin->fin_ifp = ifp;
-		fin->fin_out = 1;
-		if ((fin->fin_fr = ipacct[1][fr_active]) &&
-		    (fr_scanlist(FR_NOMATCH, ip, fin, m) & FR_ACCOUNT)) {
-			ATOMIC_INCL(frstats[1].fr_acct);
-		}
-		fin->fin_fr = NULL;
-		if (!fr || !(fr->fr_flags & FR_RETMASK))
-			(void) fr_checkstate(ip, fin);
-
-		switch (ip_natout(ip, fin))
-		{
-		case 0 :
-			break;
-		case 1 :
-			ip->ip_sum = 0;
-			break;
-		case -1 :
-			error = EINVAL;
-			goto done;
-			break;
-		}
-
-		fin->fin_ifp = sifp;
-		fin->fin_out = sout;
-	} else
-		ip->ip_sum = 0;
-
-	/*
-	 * If small enough for interface, can just send directly.
-	 */
-	if (ip->ip_len <= ifp->if_mtu) {
-# ifndef sparc
-#  if (!defined(__FreeBSD__) && !(_BSDI_VERSION >= 199510)) && \
-      !(__NetBSD_Version__ >= 105110000)
-		ip->ip_id = htons(ip->ip_id);
-#  endif
-		ip->ip_len = htons(ip->ip_len);
-		ip->ip_off = htons(ip->ip_off);
-# endif
-# if defined(__NetBSD__) && defined(M_CSUM_IPv4)
-#  if (__NetBSD_Version__ > 105009999)
-		if (ifp->if_csum_flags_tx & IFCAP_CSUM_IPv4)
-			m->m_pkthdr.csum_flags |= M_CSUM_IPv4;
-		else if (ip->ip_sum == 0)
-			ip->ip_sum = in_cksum(m, hlen);
-#  else
-		if (ifp->if_capabilities & IFCAP_CSUM_IPv4)
-			m->m_pkthdr.csuminfo |= M_CSUM_IPv4;
-		else if (ip->ip_sum == 0)
-			ip->ip_sum = in_cksum(m, hlen);
-#  endif
-# else
-		if (!ip->ip_sum)
-			ip->ip_sum = in_cksum(m, hlen);
-# endif /* __NetBSD__ && M_CSUM_IPv4 */
-# if	(BSD >= 199306) || (defined(IRIX) && (IRIX >= 605))
-#  ifdef IRIX
-		IFNET_UPPERLOCK(ifp);
-#  endif
-		error = (*ifp->if_output)(ifp, m, (struct sockaddr *)dst,
-					  ro->ro_rt);
-#  ifdef IRIX
-		IFNET_UPPERUNLOCK(ifp);
-#  endif
-# else
-		error = (*ifp->if_output)(ifp, m, (struct sockaddr *)dst);
-# endif
-		goto done;
-	}
-
-	/*
-	 * Too large for interface; fragment if possible.
-	 * Must be able to put at least 8 bytes per fragment.
-	 */
-	if (ip->ip_off & IP_DF) {
-		error = EMSGSIZE;
-		goto bad;
-	}
-	len = (ifp->if_mtu - hlen) &~ 7;
-	if (len < 8) {
-		error = EMSGSIZE;
-		goto bad;
-	}
-
-    {
-	int mhlen, firstlen = len;
-	struct mbuf **mnext = &m->m_act;
-
-	/*
-	 * Loop through length of segment after first fragment,
-	 * make new header and copy data of each part and link onto chain.
-	 */
-	m0 = m;
-	mhlen = sizeof (struct ip);
-	for (off = hlen + len; off < ip->ip_len; off += len) {
-# ifdef	MGETHDR
-		MGETHDR(m, M_DONTWAIT, MT_HEADER);
-# else
-		MGET(m, M_DONTWAIT, MT_HEADER);
-# endif
-		if (m == 0) {
-			error = ENOBUFS;
-			goto bad;
-		}
-# if BSD >= 199306
-		m->m_data += max_linkhdr;
-# else
-		m->m_off = MMAXOFF - hlen;
-# endif
-		mhip = mtod(m, struct ip *);
-		bcopy((char *)ip, (char *)mhip, sizeof(*ip));
-		if (hlen > sizeof (struct ip)) {
-			mhlen = ip_optcopy(ip, mhip) + sizeof (struct ip);
-			mhip->ip_hl = mhlen >> 2;
-		}
-		m->m_len = mhlen;
-		mhip->ip_off = ((off - hlen) >> 3) + (ip->ip_off & ~IP_MF);
-		if (ip->ip_off & IP_MF)
-			mhip->ip_off |= IP_MF;
-		if (off + len >= ip->ip_len)
-			len = ip->ip_len - off;
-		else
-			mhip->ip_off |= IP_MF;
-		mhip->ip_len = htons((u_short)(len + mhlen));
-		m->m_next = m_copy(m0, off, len);
-		if (m->m_next == 0) {
-			error = ENOBUFS;	/* ??? */
-			goto sendorfree;
-		}
-# if BSD >= 199306
-		m->m_pkthdr.len = mhlen + len;
-		m->m_pkthdr.rcvif = NULL;
-# endif
-		mhip->ip_off = htons((u_short)mhip->ip_off);
-		mhip->ip_sum = 0;
-		mhip->ip_sum = in_cksum(m, mhlen);
-		*mnext = m;
-		mnext = &m->m_act;
-	}
-	/*
-	 * Update first fragment by trimming what's been copied out
-	 * and updating header, then send each fragment (in order).
-	 */
-	m_adj(m0, hlen + firstlen - ip->ip_len);
-	ip->ip_len = htons((u_short)(hlen + firstlen));
-	ip->ip_off = htons((u_short)(ip->ip_off | IP_MF));
-	ip->ip_sum = 0;
-	ip->ip_sum = in_cksum(m0, hlen);
-sendorfree:
-	for (m = m0; m; m = m0) {
-		m0 = m->m_act;
-		m->m_act = 0;
-		if (error == 0)
-# if (BSD >= 199306) || (defined(IRIX) && (IRIX >= 605))
-			error = (*ifp->if_output)(ifp, m,
-			    (struct sockaddr *)dst, ro->ro_rt);
-# else
-			error = (*ifp->if_output)(ifp, m,
-			    (struct sockaddr *)dst);
-# endif
-		else
-			m_freem(m);
-	}
-    }	
-done:
-	if (!error)
-		ipl_frouteok[0]++;
-	else
-		ipl_frouteok[1]++;
-
-	if (ro->ro_rt != NULL) {
-		RTFREE(ro->ro_rt);
-	}
-	*mpp = NULL;
-	return error;
-bad:
-	if ((error == EMSGSIZE) && (fin->fin_v == 4)) {
-		sifp = fin->fin_ifp;
-		code = fin->fin_icode;
-		fin->fin_icode = ICMP_UNREACH_NEEDFRAG;
-		fin->fin_ifp = ifp;
-		(void) send_icmp_err(ip, ICMP_UNREACH, fin, 1);
-		fin->fin_ifp = sifp;
-		fin->fin_icode = code;
-	}
-	m_freem(m);
-	goto done;
-}
-
-
-/*
- * Return true or false depending on whether the route to the
- * given IP address uses the same interface as the one passed.
- */
-int fr_verifysrc(ipa, ifp)
-struct in_addr ipa;
-void *ifp;
-{
-	struct sockaddr_in *dst;
-	struct route iproute;
-
-	bzero((char *)&iproute, sizeof(iproute));
-	dst = (struct sockaddr_in *)&iproute.ro_dst;
-# if    (BSD >= 199306)
-	dst->sin_len = sizeof(*dst);
-# endif
-	dst->sin_family = AF_INET;
-	dst->sin_addr = ipa;
-# if    (BSD >= 199306) && !defined(__NetBSD__) && !defined(__bsdi__) && \
-	!defined(__OpenBSD__)
-#  ifdef        RTF_CLONING
-	rtalloc_ign(&iproute, RTF_CLONING);
-#  else
-	rtalloc_ign(&iproute, RTF_PRCLONING);
-#  endif
-# else
-	rtalloc(&iproute);
-# endif
-	if (iproute.ro_rt == NULL)
-		return 0;
-	return (ifp == iproute.ro_rt->rt_ifp);
-}
-
-
-# ifdef	USE_GETIFNAME
-char *
-get_ifname(ifp)
-struct ifnet *ifp;
-{
-	static char workbuf[64];
-
-	sprintf(workbuf, "%s%d", ifp->if_name, ifp->if_unit);
-	return workbuf;
-}
-# endif
-
-
-# if defined(USE_INET6)
-/*
- * This is the IPv6 specific fastroute code.  It doesn't clean up the mbuf's
- * or ensure that it is an IPv6 packet that is being forwarded, those are
- * expected to be done by the called (ipfr_fastroute).
- */
-static int ipfr_fastroute6(m0, mpp, fin, fdp)
-struct mbuf *m0, **mpp;
-fr_info_t *fin;
-frdest_t *fdp;
-{
-	struct route_in6 ip6route;
-	struct sockaddr_in6 *dst6;
-	struct route_in6 *ro;
-	struct ifnet *ifp;
-	frentry_t *fr;
-#if defined(OpenBSD) && (OpenBSD >= 200211)
-	struct route_in6 *ro_pmtu = NULL;
-	struct in6_addr finaldst;
-	ip6_t *ip6;
-#endif
-	u_long mtu;
-	int error;
-
-	ro = &ip6route;
-	fr = fin->fin_fr;
-	bzero((caddr_t)ro, sizeof(*ro));
-	dst6 = (struct sockaddr_in6 *)&ro->ro_dst;
-	dst6->sin6_family = AF_INET6;
-	dst6->sin6_len = sizeof(struct sockaddr_in6);
-	dst6->sin6_addr = fin->fin_fi.fi_dst.in6;
-
-	if (fdp != NULL)
-		ifp = fdp->fd_ifp;
-	else
-		ifp = fin->fin_ifp;
-
-	if ((fr != NULL) && (fin->fin_rev != 0)) {
-		if ((ifp != NULL) && (fdp == &fr->fr_tif))
-			return 0;
-	} else if (fdp != NULL) {
-		if (IP6_NOTZERO(&fdp->fd_ip6))
-			dst6->sin6_addr = fdp->fd_ip6.in6;
-	}
-	if (ifp == NULL)
-		return -2;
-
-#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
-	/* KAME */
-	if (IN6_IS_ADDR_LINKLOCAL(&dst6->sin6_addr))
-		dst6->sin6_addr.s6_addr16[1] = htons(ifp->if_index);
-#endif
-	rtalloc((struct route *)ro);
-
-	if ((ifp == NULL) && (ro->ro_rt != NULL))
-		ifp = ro->ro_rt->rt_ifp;
-
-	if ((ro->ro_rt == NULL) || (ifp == NULL) ||
-	    (ifp != ro->ro_rt->rt_ifp)) {
-		error = EHOSTUNREACH;
-	} else {
-		if (ro->ro_rt->rt_flags & RTF_GATEWAY)
-			dst6 = (struct sockaddr_in6 *)ro->ro_rt->rt_gateway;
-		ro->ro_rt->rt_use++;
-
-#if defined(OpenBSD) && (OpenBSD >= 200211)
-		ip6 = mtod(m0, ip6_t *);
-		ro_pmtu = ro;
-		finaldst = ip6->ip6_dst;
-		error = ip6_getpmtu(ro_pmtu, ro, ifp, &finaldst, &mtu);
-		if (error == 0) {
-#else
-# ifdef IN6_LINKMTU
-			mtu = IN6_LINKMTU(ifp);
-# else
-#  ifdef ND_IFINFO
-			mtu = ND_IFINFO(ifp)->linkmtu;
-#  else
-			mtu = nd_ifinfo[ifp->if_index].linkmtu;
-#  endif
-# endif
-#endif
-			if (m0->m_pkthdr.len <= mtu)
-				error = nd6_output(ifp, fin->fin_ifp, m0,
-						   dst6, ro->ro_rt);
-			else
-				error = EMSGSIZE;
-#if defined(OpenBSD) && (OpenBSD >= 200211)
-		}
-#endif
-	}
-
-	if (ro->ro_rt != NULL) {
-		RTFREE(ro->ro_rt);
-	}
-	return error;
-}
-# endif
-#else /* #ifdef _KERNEL */
-
-
-# if defined(__sgi) && (IRIX < 605)
-static int no_output __P((struct ifnet *ifp, struct mbuf *m,
-			   struct sockaddr *s))
-# else
-static int no_output __P((struct ifnet *ifp, struct mbuf *m,
-			   struct sockaddr *s, struct rtentry *rt))
-# endif
-{
-	return 0;
-}
-
-
-# ifdef __STDC__
-#  if defined(__sgi) && (IRIX < 605)
-static int write_output __P((struct ifnet *ifp, struct mbuf *m,
-			     struct sockaddr *s))
-#  else
-static int write_output __P((struct ifnet *ifp, struct mbuf *m,
-			     struct sockaddr *s, struct rtentry *rt))
-#  endif
-{
-	ip_t *ip = (ip_t *)m;
-# else
-static int write_output(ifp, ip)
-struct ifnet *ifp;
-ip_t *ip;
-{
-# endif
-	char fname[32];
-	int fd;
-
-# if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
-	(defined(OpenBSD) && (OpenBSD >= 199603))
-	sprintf(fname, "%s", ifp->if_xname);
-# else
-	sprintf(fname, "%s%d", ifp->if_name, ifp->if_unit);
-# endif
-	fd = open(fname, O_WRONLY|O_APPEND);
-	if (fd == -1) {
-		perror("open");
-		return -1;
-	}
-	write(fd, (char *)ip, ntohs(ip->ip_len));
-	close(fd);
-	return 0;
-}
-
-
-char *get_ifname(ifp)
-struct ifnet *ifp;
-{
-# if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
-     (defined(OpenBSD) && (OpenBSD >= 199603))
-	return ifp->if_xname;
-# else
-	static char fullifname[LIFNAMSIZ];
-
-	sprintf(fullifname, "%s%d", ifp->if_name, ifp->if_unit);
-	return fullifname;
-# endif
-}
-
-
-struct ifnet *get_unit(ifname, v)
-char *ifname;
-int v;
-{
-	struct ifnet *ifp, **ifa, **old_ifneta;
-
-	for (ifa = ifneta; ifa && (ifp = *ifa); ifa++) {
-# if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
-     (defined(OpenBSD) && (OpenBSD >= 199603))
-		if (!strncmp(ifname, ifp->if_xname, sizeof(ifp->if_xname)))
-# else
-		char fullname[LIFNAMSIZ];
-
-		sprintf(fullname, "%s%d", ifp->if_name, ifp->if_unit);
-		if (!strcmp(ifname, fullname))
-# endif
-			return ifp;
-	}
-
-	if (!ifneta) {
-		ifneta = (struct ifnet **)malloc(sizeof(ifp) * 2);
-		if (!ifneta)
-			return NULL;
-		ifneta[1] = NULL;
-		ifneta[0] = (struct ifnet *)calloc(1, sizeof(*ifp));
-		if (!ifneta[0]) {
-			free(ifneta);
-			return NULL;
-		}
-		nifs = 1;
-	} else {
-		old_ifneta = ifneta;
-		nifs++;
-		ifneta = (struct ifnet **)realloc(ifneta,
-						  (nifs + 1) * sizeof(*ifa));
-		if (!ifneta) {
-			free(old_ifneta);
-			nifs = 0;
-			return NULL;
-		}
-		ifneta[nifs] = NULL;
-		ifneta[nifs - 1] = (struct ifnet *)malloc(sizeof(*ifp));
-		if (!ifneta[nifs - 1]) {
-			nifs--;
-			return NULL;
-		}
-	}
-	ifp = ifneta[nifs - 1];
-
-# if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
-     (defined(OpenBSD) && (OpenBSD >= 199603))
-	strncpy(ifp->if_xname, ifname, sizeof(ifp->if_xname));
-# else
-	ifp->if_name = strdup(ifname);
-
-	ifname = ifp->if_name;
-	while (*ifname && !isdigit(*ifname))
-		ifname++;
-	if (*ifname && isdigit(*ifname)) {
-		ifp->if_unit = atoi(ifname);
-		*ifname = '\0';
-	} else
-		ifp->if_unit = -1;
-# endif
-	ifp->if_output = no_output;
-	return ifp;
-}
-
-
-
-void init_ifp()
-{
-	struct ifnet *ifp, **ifa;
-	char fname[32];
-	int fd;
-
-# if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
-	(defined(OpenBSD) && (OpenBSD >= 199603))
-	for (ifa = ifneta; ifa && (ifp = *ifa); ifa++) {
-		ifp->if_output = write_output;
-		sprintf(fname, "/tmp/%s", ifp->if_xname);
-		fd = open(fname, O_WRONLY|O_CREAT|O_EXCL|O_TRUNC, 0600);
-		if (fd == -1)
-			perror("open");
-		else
-			close(fd);
-	}
-# else
-
-	for (ifa = ifneta; ifa && (ifp = *ifa); ifa++) {
-		ifp->if_output = write_output;
-		sprintf(fname, "/tmp/%s%d", ifp->if_name, ifp->if_unit);
-		fd = open(fname, O_WRONLY|O_CREAT|O_EXCL|O_TRUNC, 0600);
-		if (fd == -1)
-			perror("open");
-		else
-			close(fd);
-	}
-# endif
-}
-
-
-int send_reset(ip, fin)
-ip_t *ip;
-fr_info_t *fin;
-{
-	verbose("- TCP RST sent\n");
-	return 0;
-}
-
-
-int send_icmp_err(ip, code, fin, dst)
-ip_t *ip;
-int code;
-fr_info_t *fin;
-int dst;
-{
-	verbose("- ICMP UNREACHABLE sent\n");
-	return 0;
-}
-
-
-void frsync()
-{
-	return;
-}
-
-void m_copydata(m, off, len, cp)
-mb_t *m;
-int off, len;
-caddr_t cp;
-{
-	bcopy((char *)m + off, cp, len);
-}
-
-
-int ipfuiomove(buf, len, rwflag, uio)
-caddr_t buf;
-int len, rwflag;
-struct uio *uio;
-{
-	int left, ioc, num, offset;
-	struct iovec *io;
-	char *start;
-
-	if (rwflag == UIO_READ) {
-		left = len;
-		ioc = 0;
-
-		offset = uio->uio_offset;
-
-		while ((left > 0) && (ioc < uio->uio_iovcnt)) {
-			io = uio->uio_iov + ioc;
-			num = io->iov_len;
-			if (num > left)
-				num = left;
-			start = (char *)io->iov_base + offset;
-			if (start > (char *)io->iov_base + io->iov_len) {
-				offset -= io->iov_len;
-				ioc++;
-				continue;
-			}
-			bcopy(buf, start, num);
-			uio->uio_resid -= num;
-			uio->uio_offset += num;
-			left -= num;
-			if (left > 0)
-				ioc++;
-		}
-		if (left > 0)
-			return EFAULT;
-	}
-	return 0;
-}
-#endif /* _KERNEL */
diff --git a/sys/contrib/ipfilter/netinet/ip_h323_pxy.c b/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
deleted file mode 100644
index 1933203e05cd..000000000000
--- a/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/*	$FreeBSD$	*/
-
-/*
- * Copyright 2001, QNX Software Systems Ltd. All Rights Reserved
- *
- * This source code has been published by QNX Software Systems Ltd. (QSSL).
- * However, any use, reproduction, modification, distribution or transfer of
- * this software, or any software which includes or is based upon any of this
- * code, is only permitted under the terms of the QNX Open Community License
- * version 1.0 (see licensing.qnx.com for details) or as otherwise expressly
- * authorized by a written license agreement from QSSL. For more information,
- * please email licensing@qnx.com.
- *
- * For more details, see QNX_OCL.txt provided with this distribution.
- */
-
-/*
- * Simple H.323 proxy
- *
- *      by xtang@canada.com
- *	ported to ipfilter 3.4.20 by Michael Grant mg-ipf@grant.org
- */
-
-#if __FreeBSD_version >= 220000 && defined(_KERNEL)
-# include <sys/fcntl.h>
-# include <sys/filio.h>
-#else
-# ifndef linux
-#  include <sys/ioctl.h>
-# endif
-#endif
-
-#define IPF_H323_PROXY
-
-int  ippr_h323_init __P((void));
-void  ippr_h323_fini __P((void));
-int  ippr_h323_new __P((fr_info_t *, ap_session_t *, nat_t *));
-void ippr_h323_del __P((ap_session_t *));
-int  ippr_h323_out __P((fr_info_t *, ap_session_t *, nat_t *));
-int  ippr_h323_in __P((fr_info_t *, ap_session_t *, nat_t *));
-
-int  ippr_h245_new __P((fr_info_t *, ap_session_t *, nat_t *));
-int  ippr_h245_out __P((fr_info_t *, ap_session_t *, nat_t *));
-int  ippr_h245_in __P((fr_info_t *, ap_session_t *, nat_t *));
-
-static	frentry_t	h323_fr;
-
-int	h323_proxy_init = 0;
-
-static int find_port __P((int, caddr_t, int datlen, int *, u_short *));
-
-
-static int find_port(ipaddr, data, datlen, off, port)
-int ipaddr;
-caddr_t data;
-int datlen, *off;
-unsigned short *port;
-{
-	u_32_t addr, netaddr;
-	u_char *dp;
-	int offset;
-
-	if (datlen < 6)
-		return -1;
-	
-	*port = 0;
-	offset = *off;
-	dp = (u_char *)data;
-	netaddr = ntohl(ipaddr);
-
-	for (offset = 0; offset <= datlen - 6; offset++, dp++) {
-		addr = (dp[0] << 24) | (dp[1] << 16) | (dp[2] << 8) | dp[3];
-		if (netaddr == addr)
-		{
-			*port = (*(dp + 4) << 8) | *(dp + 5);
-			break;
-		}
-	}
-	*off = offset;
-  	return (offset > datlen - 6) ? -1 : 0;
-}
-
-/*
- * Initialize local structures.
- */
-int ippr_h323_init()
-{
-	bzero((char *)&h323_fr, sizeof(h323_fr));
-	h323_fr.fr_ref = 1;
-	h323_fr.fr_flags = FR_INQUE|FR_PASS|FR_QUICK|FR_KEEPSTATE;
-	MUTEX_INIT(&h323_fr.fr_lock, "H323 proxy rule lock");
-	h323_proxy_init = 1;
-
-	return 0;
-}
-
-
-void ippr_h323_fini()
-{
-	if (h323_proxy_init == 1) {
-		MUTEX_DESTROY(&h323_fr.fr_lock);
-		h323_proxy_init = 0;
-	}
-}
-
-
-int ippr_h323_new(fin, aps, nat)
-fr_info_t *fin;
-ap_session_t *aps;
-nat_t *nat;
-{
-	fin = fin;	/* LINT */
-	nat = nat;	/* LINT */
-
-	aps->aps_data = NULL;
-	aps->aps_psiz = 0;
-
-	return 0;
-}
-
-
-void ippr_h323_del(aps)
-ap_session_t *aps;
-{
-	int i;
-	ipnat_t *ipn;
-	
-	if (aps->aps_data) {
-		for (i = 0, ipn = aps->aps_data;
-		     i < (aps->aps_psiz / sizeof(ipnat_t));
-		     i++, ipn = (ipnat_t *)((char *)ipn + sizeof(*ipn)))
-		{
-			/*
-			 * Check the comment in ippr_h323_in() function,
-			 * just above fr_nat_ioctl() call.
-			 * We are lucky here because this function is not
-			 * called with ipf_nat locked.
-			 */
-			if (fr_nat_ioctl((caddr_t)ipn, SIOCRMNAT, NAT_SYSSPACE|
-				         NAT_LOCKHELD|FWRITE) == -1) {
-				/*EMPTY*/;
-				/* log the error */
-			}
-		}
-		KFREES(aps->aps_data, aps->aps_psiz);
-		/* avoid double free */
-		aps->aps_data = NULL;
-		aps->aps_psiz = 0;
-	}
-	return;
-}
-
-
-int ippr_h323_in(fin, aps, nat)
-fr_info_t *fin;
-ap_session_t *aps;
-nat_t *nat;
-{
-	int ipaddr, off, datlen;
-	unsigned short port;
-	caddr_t data;
-	tcphdr_t *tcp;
-	ip_t *ip;
-
-	ip = fin->fin_ip;
-	tcp = (tcphdr_t *)fin->fin_dp;
-	ipaddr = ip->ip_src.s_addr;
-	
-	data = (caddr_t)tcp + (TCP_OFF(tcp) << 2);
-	datlen = fin->fin_dlen - (TCP_OFF(tcp) << 2);
-	if (find_port(ipaddr, data, datlen, &off, &port) == 0) {
-		ipnat_t *ipn;
-		char *newarray;
-
-		/* setup a nat rule to set a h245 proxy on tcp-port "port"
-		 * it's like:
-		 *   map <if> <inter_ip>/<mask> -> <gate_ip>/<mask> proxy port <port> <port>/tcp
-		 */
-		KMALLOCS(newarray, char *, aps->aps_psiz + sizeof(*ipn));
-		if (newarray == NULL) {
-			return -1;
-		}
-		ipn = (ipnat_t *)&newarray[aps->aps_psiz];
-		bcopy((caddr_t)nat->nat_ptr, (caddr_t)ipn, sizeof(ipnat_t));
-		(void) strncpy(ipn->in_plabel, "h245", APR_LABELLEN);
-		
-		ipn->in_inip = nat->nat_inip.s_addr;
-		ipn->in_inmsk = 0xffffffff;
-		ipn->in_dport = htons(port);
-		/*
-		 * we got a problem here. we need to call fr_nat_ioctl() to add
-		 * the h245 proxy rule, but since we already hold (READ locked)
-		 * the nat table rwlock (ipf_nat), if we go into fr_nat_ioctl(),
-		 * it will try to WRITE lock it. This will causing dead lock
-		 * on RTP.
-		 *
-		 * The quick & dirty solution here is release the read lock,
-		 * call fr_nat_ioctl() and re-lock it.
-		 * A (maybe better) solution is do a UPGRADE(), and instead
-		 * of calling fr_nat_ioctl(), we add the nat rule ourself.
-		 */
-		RWLOCK_EXIT(&ipf_nat);
-		if (fr_nat_ioctl((caddr_t)ipn, SIOCADNAT,
-				 NAT_SYSSPACE|FWRITE) == -1) {
-			READ_ENTER(&ipf_nat);
-			return -1;
-		}
-		READ_ENTER(&ipf_nat);
-		if (aps->aps_data != NULL && aps->aps_psiz > 0) {
-			bcopy(aps->aps_data, newarray, aps->aps_psiz);
-			KFREES(aps->aps_data, aps->aps_psiz);
-		}
-		aps->aps_data = newarray;
-		aps->aps_psiz += sizeof(*ipn);
-	}
-	return 0;
-}
-
-
-int ippr_h245_new(fin, aps, nat)
-fr_info_t *fin;
-ap_session_t *aps;
-nat_t *nat;
-{
-	fin = fin;	/* LINT */
-	nat = nat;	/* LINT */
-
-	aps->aps_data = NULL;
-	aps->aps_psiz = 0;
-	return 0;
-}
-
-
-int ippr_h245_out(fin, aps, nat)
-fr_info_t *fin;
-ap_session_t *aps;
-nat_t *nat;
-{
-	int ipaddr, off, datlen;
-	tcphdr_t *tcp;
-	caddr_t data;
-	u_short port;
-	ip_t *ip;
-
-	aps = aps;	/* LINT */
-
-	ip = fin->fin_ip;
-	tcp = (tcphdr_t *)fin->fin_dp;
-	ipaddr = nat->nat_inip.s_addr;
-	data = (caddr_t)tcp + (TCP_OFF(tcp) << 2);
-	datlen = ip->ip_len - fin->fin_hlen - (TCP_OFF(tcp) << 2);
-	if (find_port(ipaddr, data, datlen, &off, &port) == 0) {
-		fr_info_t fi;
-		nat_t     *nat2;
-
-/*		port = htons(port); */
-		nat2 = nat_outlookup(fin->fin_ifp, IPN_UDP, IPPROTO_UDP,
-				    ip->ip_src, ip->ip_dst);
-		if (nat2 == NULL) {
-			struct ip newip;
-			struct udphdr udp;
-			
-			bcopy((caddr_t)ip, (caddr_t)&newip, sizeof(newip));
-			newip.ip_len = fin->fin_hlen + sizeof(udp);
-			newip.ip_p = IPPROTO_UDP;
-			newip.ip_src = nat->nat_inip;
-			
-			bzero((char *)&udp, sizeof(udp));
-			udp.uh_sport = port;
-			
-			bcopy((caddr_t)fin, (caddr_t)&fi, sizeof(fi));
-			fi.fin_fi.fi_p = IPPROTO_UDP;
-			fi.fin_data[0] = port;
-			fi.fin_data[1] = 0;
-			fi.fin_dp = (char *)&udp;
-
-			nat2 = nat_new(&fi, nat->nat_ptr, NULL,
-				       NAT_SLAVE|IPN_UDP|SI_W_DPORT,
-				       NAT_OUTBOUND);
-			if (nat2 != NULL) {
-				(void) nat_proto(&fi, nat2, IPN_UDP);
-				nat_update(&fi, nat2, nat2->nat_ptr);
-
-				nat2->nat_ptr->in_hits++;
-#ifdef	IPFILTER_LOG
-				nat_log(nat2, (u_int)(nat->nat_ptr->in_redir));
-#endif
-				bcopy((caddr_t)&ip->ip_src.s_addr,
-				      data + off, 4);
-				bcopy((caddr_t)&nat2->nat_outport,
-				      data + off + 4, 2);
-			}
-		}
-	}
-	return 0;
-}
diff --git a/sys/contrib/ipfilter/netinet/ip_rules.c b/sys/contrib/ipfilter/netinet/ip_rules.c
deleted file mode 100644
index f080ec5b8324..000000000000
--- a/sys/contrib/ipfilter/netinet/ip_rules.c
+++ /dev/null
@@ -1,229 +0,0 @@
-/*	$FreeBSD$	*/
-
-/*
-* Copyright (C) 1993-2000 by Darren Reed.
-*
-* Redistribution and use in source and binary forms are permitted
-* provided that this notice is preserved and due credit is given
-* to the original author and the contributors.
-*/
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__sgi)
-# include <sys/systm.h>
-#endif
-#include <sys/errno.h>
-#include <sys/param.h>
-#if !defined(__SVR4) && !defined(__svr4__) && !defined(__hpux)
-# include <sys/mbuf.h>
-#endif
-#if defined(__FreeBSD__) && (__FreeBSD_version > 220000)
-# include <sys/sockio.h>
-#else
-# include <sys/ioctl.h>
-#endif /* FreeBSD */
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include "netinet/ip_compat.h"
-#include "netinet/ip_fil.h"
-
-#include "netinet/ip_rules.h"
-
-#ifndef _KERNEL
-# include <string.h>
-#endif /* _KERNEL */
-
-#ifdef IPFILTER_COMPILED
-
-static u_long in_rule__0[] = {
-0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xffffffff, 0, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x80000000, 0x8002, 0, 0, 0, 0xffff, 0, 0, 0x4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-static u_long out_rule__0[] = {
-0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xffffffff, 0, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x80000000, 0x4002, 0, 0, 0, 0xffff, 0, 0, 0x4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-frentry_t *ipf_rules_in_[1] = {
-	(frentry_t *)&in_rule__0
-};
-
-frentry_t *ipfrule_match_in_(fin, passp)
-fr_info_t *fin;
-u_32_t *passp;
-{
-	frentry_t *fr = NULL;
-
-	fr = (frentry_t *)&in_rule__0;
-	return fr;
-}
-
-frentry_t *ipf_rules_out_[1] = {
-	(frentry_t *)&out_rule__0
-};
-
-frentry_t *ipfrule_match_out_(fin, passp)
-fr_info_t *fin;
-u_32_t *passp;
-{
-	frentry_t *fr = NULL;
-
-	fr = (frentry_t *)&out_rule__0;
-	return fr;
-}
-static frentry_t ipfrule_out_;
-
-int ipfrule_add_out_()
-{
-	int i, j, err = 0, max;
-	frentry_t *fp;
-
-	max = sizeof(ipf_rules_out_)/sizeof(frentry_t *);
-	for (i = 0; i < max; i++) {
-		fp = ipf_rules_out_[i];
-		fp->fr_next = NULL;
-		for (j = i + 1; j < max; j++)
-			if (strncmp(fp->fr_group,
-				    ipf_rules_out_[j]->fr_group,
-				    FR_GROUPLEN) == 0) {
-				fp->fr_next = ipf_rules_out_[j];
-				break;
-			}
-	}
-
-	fp = &ipfrule_out_;
-	bzero((char *)fp, sizeof(*fp));
-	fp->fr_type = FR_T_CALLFUNC|FR_T_BUILTIN;
-	fp->fr_flags = FR_OUTQUE|FR_NOMATCH;
-	fp->fr_data = (void *)ipf_rules_out_[0];
-	fp->fr_dsize = sizeof(ipf_rules_out_[0]);
-	fp->fr_v = 4;
-	fp->fr_func = (ipfunc_t)ipfrule_match_out_;
-	err = frrequest(IPL_LOGIPF, SIOCADDFR, (caddr_t)fp, fr_active, 0);
-	return err;
-}
-
-
-int ipfrule_remove_out_()
-{
-	int err = 0, i;
-	frentry_t *fp;
-
-	/*
-	 * Try to remove the outbound rule.
-	 */
-	if (ipfrule_out_.fr_ref > 0) {
-		err = EBUSY;
-	} else {
-		i = sizeof(ipf_rules_out_)/sizeof(frentry_t *) - 1;
-		for (; i >= 0; i--) {
-			fp = ipf_rules_out_[i];
-			if (fp->fr_ref > 1) {
-				err = EBUSY;
-				break;
-			}
-		}
-	}
-	if (err == 0)
-		err = frrequest(IPL_LOGIPF, SIOCDELFR,
-				(caddr_t)&ipfrule_out_, fr_active, 0);
-	if (err)
-		return err;
-
-
-	return err;
-}
-static frentry_t ipfrule_in_;
-
-int ipfrule_add_in_()
-{
-	int i, j, err = 0, max;
-	frentry_t *fp;
-
-	max = sizeof(ipf_rules_in_)/sizeof(frentry_t *);
-	for (i = 0; i < max; i++) {
-		fp = ipf_rules_in_[i];
-		fp->fr_next = NULL;
-		for (j = i + 1; j < max; j++)
-			if (strncmp(fp->fr_group,
-				    ipf_rules_in_[j]->fr_group,
-				    FR_GROUPLEN) == 0) {
-				fp->fr_next = ipf_rules_in_[j];
-				break;
-			}
-	}
-
-	fp = &ipfrule_in_;
-	bzero((char *)fp, sizeof(*fp));
-	fp->fr_type = FR_T_CALLFUNC|FR_T_BUILTIN;
-	fp->fr_flags = FR_INQUE|FR_NOMATCH;
-	fp->fr_data = (void *)ipf_rules_in_[0];
-	fp->fr_dsize = sizeof(ipf_rules_in_[0]);
-	fp->fr_v = 4;
-	fp->fr_func = (ipfunc_t)ipfrule_match_in_;
-	err = frrequest(IPL_LOGIPF, SIOCADDFR, (caddr_t)fp, fr_active, 0);
-	return err;
-}
-
-
-int ipfrule_remove_in_()
-{
-	int err = 0, i;
-	frentry_t *fp;
-
-	/*
-	 * Try to remove the inbound rule.
-	 */
-	if (ipfrule_in_.fr_ref > 0) {
-		err = EBUSY;
-	} else {
-		i = sizeof(ipf_rules_in_)/sizeof(frentry_t *) - 1;
-		for (; i >= 0; i--) {
-			fp = ipf_rules_in_[i];
-			if (fp->fr_ref > 1) {
-				err = EBUSY;
-				break;
-			}
-		}
-	}
-	if (err == 0)
-		err = frrequest(IPL_LOGIPF, SIOCDELFR,
-				(caddr_t)&ipfrule_in_, fr_active, 0);
-	if (err)
-		return err;
-
-
-	return err;
-}
-
-int ipfrule_add()
-{
-	int err;
-
-	err = ipfrule_add_out_();
-	if (err != 0)
-		return err;
-	err = ipfrule_add_in_();
-	if (err != 0)
-		return err;
-	return 0;
-}
-
-
-int ipfrule_remove()
-{
-	int err;
-
-	err = ipfrule_remove_out_();
-	if (err != 0)
-		return err;
-	err = ipfrule_remove_in_();
-	if (err != 0)
-		return err;
-	return 0;
-}
-#endif /* IPFILTER_COMPILED */
diff --git a/sys/contrib/ipfilter/netinet/ip_rules.h b/sys/contrib/ipfilter/netinet/ip_rules.h
deleted file mode 100644
index 37e364613d50..000000000000
--- a/sys/contrib/ipfilter/netinet/ip_rules.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*	$FreeBSD$	*/
-
-extern int ipfrule_add __P((void));
-extern int ipfrule_remove __P((void));
-
-extern frentry_t *ipfrule_match_out_ __P((fr_info_t *, u_32_t *));
-extern frentry_t *ipf_rules_out_[1];
-
-extern int ipfrule_add_out_ __P((void));
-extern int ipfrule_remove_out_ __P((void));
-
-extern frentry_t *ipfrule_match_in_ __P((fr_info_t *, u_32_t *));
-extern frentry_t *ipf_rules_in_[1];
-
-extern int ipfrule_add_in_ __P((void));
-extern int ipfrule_remove_in_ __P((void));
diff --git a/sys/contrib/ipfilter/netinet/y b/sys/contrib/ipfilter/netinet/y
deleted file mode 100644
index d9aa6718e895..000000000000
--- a/sys/contrib/ipfilter/netinet/y
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN DSA PRIVATE KEY-----
-MIIBuwIBAAKBgQCXGsxsgDt2euTDP/IQGY4O4CsKH9NXzI3dQ44L0w3PLYr/JQuY
-kB8TLuCFZPIO/nlkubnCQGNnmcyUBlIA654Y7FEPBhLa4BWT6cpF4rfVzCQMq4W9
-ZqXv549OZ0Ejg6ciJ/Udhhjx/TMn6sIojEZmHBdToTtK54119hC6eOxnQwIVAIO3
-p+t6ASypQY8M+h96GZlVmkHRAoGAfK41snqWLcHspLYsIHu2tUwip7GqPPNe7Iej
-CX17PiPbt9S5ph8aI6hPVmAUoKpfEb8OMDak3sFAFoDnve/FgOsZS+HKRpJRqUtW
-PbBrhvRkQ5N4SWOzK54GXt/aWRTcUoVDz29QiakTfrZtdHeiJTbVNR36JdQ/nIHO
-VWTWpcMCgYA4oHMrfK7/LMrjKWOLW8bXanvgL+nMoFVChYqzfBptvd492chAokKa
-cr8NJDeT10i98TYooi0AvEthor9PVBDFMA0fj+LdM95HZTr6NIMAtxik8Ici4e7X
-S4xWlsjTJQO6Kx7Hfuyt9EH2QkraLXFiFFKudGdvHqHeZ0q3iJ5JXwIVAIGBuoE0
-wrpIyJQuIMYL5HJxQ8wt
------END DSA PRIVATE KEY-----
diff --git a/sys/contrib/ipfilter/netinet/y.pub b/sys/contrib/ipfilter/netinet/y.pub
deleted file mode 100644
index a225f3922a01..000000000000
--- a/sys/contrib/ipfilter/netinet/y.pub
+++ /dev/null
@@ -1 +0,0 @@
-ssh-dss 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 darrenr@freefall.freebsd.org