Import IP Filter 4.1.13

21 files changed, 557 insertions, 402 deletions

diff --git a/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE b/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE
index 2b4b67e..41c151c 100644
--- a/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE
+++ b/sys/contrib/ipfilter/netinet/IPFILTER.LICENCE
@@ -1,28 +1,29 @@
-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 ?
-
+/*
+ * Copyright (C) 1993-2001 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/fil.c b/sys/contrib/ipfilter/netinet/fil.c
index c8c1b55..8f911e6 100644
--- a/sys/contrib/ipfilter/netinet/fil.c
+++ b/sys/contrib/ipfilter/netinet/fil.c
@@ -137,7 +137,7 @@ struct file;
 
 #if !defined(lint)
 static const char sccsid[] = "@(#)fil.c	1.36 6/5/96 (C) 1993-2000 Darren Reed";
-static const char rcsid[] = "@(#)$Id: fil.c,v 2.243.2.70 2005/12/07 08:15:16 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: fil.c,v 2.243.2.78 2006/03/29 11:19:54 darrenr Exp $";
 #endif
 
 #ifndef	_KERNEL
@@ -145,12 +145,6 @@ static const char rcsid[] = "@(#)$Id: fil.c,v 2.243.2.70 2005/12/07 08:15:16 dar
 # include "ipt.h"
 # include "bpf-ipf.h"
 extern	int	opts;
-
-# define	FR_VERBOSE(verb_pr)			verbose verb_pr
-# define	FR_DEBUG(verb_pr)			debug verb_pr
-#else /* #ifndef _KERNEL */
-# define	FR_VERBOSE(verb_pr)
-# define	FR_DEBUG(verb_pr)
 #endif /* _KERNEL */
 
 
@@ -1972,24 +1966,23 @@ u_32_t pass;
 		 * it, except for increasing the hit counter.
 		 */
 		if ((passt & FR_CALLNOW) != 0) {
+			frentry_t *frs;
+
 			ATOMIC_INC64(fr->fr_hits);
 			if ((fr->fr_func != NULL) &&
-			    (fr->fr_func != (ipfunc_t)-1)) {
-				frentry_t *frs;
+			    (fr->fr_func == (ipfunc_t)-1))
+				continue;
 
-				frs = fin->fin_fr;
-				fin->fin_fr = fr;
-				fr = (*fr->fr_func)(fin, &passt);
-				if (fr == NULL) {
-					fin->fin_fr = frs;
-					continue;
-				}
-				passt = fr->fr_flags;
-				fin->fin_fr = fr;
-			}
-		} else {
+			frs = fin->fin_fr;
 			fin->fin_fr = fr;
+			fr = (*fr->fr_func)(fin, &passt);
+			if (fr == NULL) {
+				fin->fin_fr = frs;
+				continue;
+			}
+			passt = fr->fr_flags;
 		}
+		fin->fin_fr = fr;
 
 #ifdef  IPFILTER_LOG
 		/*
@@ -2021,18 +2014,20 @@ u_32_t pass;
 		(void) strncpy(fin->fin_group, fr->fr_group, FR_GROUPLEN);
 		if (fr->fr_grp != NULL) {
 			fin->fin_fr = *fr->fr_grp;
-			pass = fr_scanlist(fin, pass);
+			passt = fr_scanlist(fin, pass);
 			if (fin->fin_fr == NULL) {
 				fin->fin_rule = rulen;
 				(void) strncpy(fin->fin_group, fr->fr_group,
 					       FR_GROUPLEN);
 				fin->fin_fr = fr;
+				passt = pass;
 			}
 			if (fin->fin_flx & FI_DONTCACHE)
 				logged = 1;
+			pass = passt;
 		}
 
-		if (pass & FR_QUICK) {
+		if (passt & FR_QUICK) {
 			/*
 			 * Finally, if we've asked to track state for this
 			 * packet, set it up.  Add state for "quick" rules
@@ -2044,6 +2039,7 @@ u_32_t pass;
 			    !(fin->fin_flx & FI_STATE)) {
 				int out = fin->fin_out;
 
+				fin->fin_fr = fr;
 				if (fr_addstate(fin, NULL, 0) != NULL) {
 					ATOMIC_INCL(frstats[out].fr_ads);
 				} else {
@@ -2193,7 +2189,8 @@ u_32_t *passp;
 	if (FR_ISAUTH(pass)) {
 		if (fr_newauth(fin->fin_m, fin) != 0) {
 #ifdef	_KERNEL
-			fin->fin_m = *fin->fin_mp = NULL;
+			if ((pass & FR_RETMASK) == 0)
+				fin->fin_m = *fin->fin_mp = NULL;
 #else
 			;
 #endif
@@ -2233,21 +2230,6 @@ u_32_t *passp;
 		}
 	}
 
-	/*
-	 * Finally, if we've asked to track state for this packet, set it up.
-	 */
-	if ((pass & FR_KEEPSTATE) && !(fin->fin_flx & FI_STATE)) {
-		if (fr_addstate(fin, NULL, 0) != NULL) {
-			ATOMIC_INCL(frstats[out].fr_ads);
-		} else {
-			ATOMIC_INCL(frstats[out].fr_bads);
-			if (FR_ISPASS(pass)) {
-				pass &= ~FR_CMDMASK;
-				pass |= FR_BLOCK;
-			}
-		}
-	}
-
 	fr = fin->fin_fr;
 
 	if (passp != NULL)
@@ -2313,8 +2295,6 @@ int out;
 #ifdef USE_INET6
 	ip6_t *ip6;
 #endif
-	SPL_INT(s);
-
 	/*
 	 * The first part of fr_check() deals with making sure that what goes
 	 * into the filtering engine makes some sense.  Information about the
@@ -2328,6 +2308,8 @@ int out;
 
 	if ((u_int)ip & 0x3)
 		return 2;
+# else
+	SPL_INT(s);
 # endif
 
 	READ_ENTER(&ipf_global);
@@ -2493,6 +2475,23 @@ int out;
 	if ((pass & FR_NOMATCH) || (fr == NULL))
 		fr = fr_firewall(fin, &pass);
 
+	/*
+	 * If we've asked to track state for this packet, set it up.
+	 * Here rather than fr_firewall because fr_checkauth may decide
+	 * to return a packet for "keep state"
+	 */
+	if ((pass & FR_KEEPSTATE) && !(fin->fin_flx & FI_STATE)) {
+		if (fr_addstate(fin, NULL, 0) != NULL) {
+			ATOMIC_INCL(frstats[out].fr_ads);
+		} else {
+			ATOMIC_INCL(frstats[out].fr_bads);
+			if (FR_ISPASS(pass)) {
+				pass &= ~FR_CMDMASK;
+				pass |= FR_BLOCK;
+			}
+		}
+	}
+
 	fin->fin_fr = fr;
 
 	/*
@@ -2547,7 +2546,7 @@ int out;
 
 	RWLOCK_EXIT(&ipf_mutex);
 
-	if (pass & (FR_RETRST|FR_RETICMP)) {
+	if ((pass & FR_RETMASK) != 0) {
 		/*
 		 * Should we return an ICMP packet to indicate error
 		 * status passing through the packet filter ?
@@ -2573,6 +2572,14 @@ int out;
 					ATOMIC_INCL(frstats[1].fr_ret);
 				}
 			}
+
+			/*
+			 * When using return-* with auth rules, the auth code
+			 * takes over disposing of this packet.
+			 */
+			if (FR_ISAUTH(pass) && (fin->fin_m != NULL)) {
+				fin->fin_m = *fin->fin_mp = NULL;
+			}
 		} else {
 			if (pass & FR_RETRST)
 				fin->fin_error = ECONNRESET;
@@ -2786,10 +2793,10 @@ int len;
 /*                                                                          */
 /* Expects ip_len to be in host byte order when called.                     */
 /* ------------------------------------------------------------------------ */
-u_short fr_cksum(m, ip, l4proto, l4hdr)
+u_short fr_cksum(m, ip, l4proto, l4hdr, l3len)
 mb_t *m;
 ip_t *ip;
-int l4proto;
+int l4proto, l3len;
 void *l4hdr;
 {
 	u_short *sp, slen, sumsave, l4hlen, *csump;
@@ -2814,7 +2821,7 @@ void *l4hdr;
 	if (IP_V(ip) == 4) {
 #endif
 		hlen = IP_HL(ip) << 2;
-		slen = ip->ip_len - hlen;
+		slen = l3len - hlen;
 		sum = htons((u_short)l4proto);
 		sum += htons(slen);
 		sp = (u_short *)&ip->ip_src;
@@ -2826,9 +2833,9 @@ void *l4hdr;
 	} else if (IP_V(ip) == 6) {
 		ip6 = (ip6_t *)ip;
 		hlen = sizeof(*ip6);
-		slen = ntohs(ip6->ip6_plen);
+		slen = ntohs(l3len);
 		sum = htons((u_short)l4proto);
-		sum += htons(slen);
+		sum += slen;
 		sp = (u_short *)&ip6->ip6_src;
 		sum += *sp++;	/* ip6_src */
 		sum += *sp++;
@@ -3059,7 +3066,7 @@ nodata:
  * SUCH DAMAGE.
  *
  *	@(#)uipc_mbuf.c	8.2 (Berkeley) 1/4/94
- * $Id: fil.c,v 2.243.2.70 2005/12/07 08:15:16 darrenr Exp $
+ * $Id: fil.c,v 2.243.2.78 2006/03/29 11:19:54 darrenr Exp $
  */
 /*
  * Copy data from an mbuf chain starting "off" bytes from the beginning,
@@ -3472,7 +3479,7 @@ int proto, flags;
 char *memstr(src, dst, slen, dlen)
 const char *src;
 char *dst;
-int slen, dlen;
+size_t slen, dlen;
 {
 	char *s = NULL;
 
@@ -3760,13 +3767,7 @@ size_t size;
 	caddr_t ca;
 	int err;
 
-# if SOLARIS
-	err = COPYIN(dst, (caddr_t)&ca, sizeof(ca));
-	if (err != 0)
-		return err;
-# else
 	bcopy(dst, (caddr_t)&ca, sizeof(ca));
-# endif
 	err = COPYOUT(src, ca, size);
 	return err;
 }
@@ -4886,7 +4887,7 @@ ipftq_t *ifq;
 		ifq->ifq_next->ifq_pnext = ifq->ifq_pnext;
 
 	MUTEX_DESTROY(&ifq->ifq_lock);
-	fr_userifqs--;
+	ATOMIC_DEC(fr_userifqs);
 	KFREE(ifq);
 }
 
@@ -4908,8 +4909,6 @@ ipftqent_t *tqe;
 	ipftq_t *ifq;
 
 	ifq = tqe->tqe_ifq;
-	if (ifq == NULL)
-		return;
 
 	MUTEX_ENTER(&ifq->ifq_lock);
 
@@ -4981,24 +4980,21 @@ ipftqent_t *tqe;
 	tqe->tqe_die = fr_ticks + ifq->ifq_ttl;
 
 	MUTEX_ENTER(&ifq->ifq_lock);
-	if (tqe->tqe_next == NULL) {		/* at the end already ? */
-		MUTEX_EXIT(&ifq->ifq_lock);
-		return;
-	}
-
-	/*
-	 * Remove from list
-	 */
-	*tqe->tqe_pnext = tqe->tqe_next;
-	tqe->tqe_next->tqe_pnext = tqe->tqe_pnext;
+	if (tqe->tqe_next != NULL) {		/* at the end already ? */
+		/*
+		 * Remove from list
+		 */
+		*tqe->tqe_pnext = tqe->tqe_next;
+		tqe->tqe_next->tqe_pnext = tqe->tqe_pnext;
 
-	/*
-	 * Make it the last entry.
-	 */
-	tqe->tqe_next = NULL;
-	tqe->tqe_pnext = ifq->ifq_tail;
-	*ifq->ifq_tail = tqe;
-	ifq->ifq_tail = &tqe->tqe_next;
+		/*
+		 * Make it the last entry.
+		 */
+		tqe->tqe_next = NULL;
+		tqe->tqe_pnext = ifq->ifq_tail;
+		*ifq->ifq_tail = tqe;
+		ifq->ifq_tail = &tqe->tqe_next;
+	}
 	MUTEX_EXIT(&ifq->ifq_lock);
 }
 
@@ -5050,46 +5046,44 @@ ipftq_t *oifq, *nifq;
 	 * Is the operation here going to be a no-op ?
 	 */
 	MUTEX_ENTER(&oifq->ifq_lock);
-	if (oifq == nifq && *oifq->ifq_tail == tqe) {
-		MUTEX_EXIT(&oifq->ifq_lock);
-		return;
-	}
+	if ((oifq != nifq) || (*oifq->ifq_tail != tqe)) {
+		/*
+		 * Remove from the old queue
+		 */
+		*tqe->tqe_pnext = tqe->tqe_next;
+		if (tqe->tqe_next)
+			tqe->tqe_next->tqe_pnext = tqe->tqe_pnext;
+		else
+			oifq->ifq_tail = tqe->tqe_pnext;
+		tqe->tqe_next = NULL;
 
-	/*
-	 * Remove from the old queue
-	 */
-	*tqe->tqe_pnext = tqe->tqe_next;
-	if (tqe->tqe_next)
-		tqe->tqe_next->tqe_pnext = tqe->tqe_pnext;
-	else
-		oifq->ifq_tail = tqe->tqe_pnext;
-	tqe->tqe_next = NULL;
+		/*
+		 * If we're moving from one queue to another, release the
+		 * lock on the old queue and get a lock on the new queue.
+		 * For user defined queues, if we're moving off it, call
+		 * delete in case it can now be freed.
+		 */
+		if (oifq != nifq) {
+			tqe->tqe_ifq = NULL;
 
-	/*
-	 * If we're moving from one queue to another, release the lock on the
-	 * old queue and get a lock on the new queue.  For user defined queues,
-	 * if we're moving off it, call delete in case it can now be freed.
-	 */
-	if (oifq != nifq) {
-		tqe->tqe_ifq = NULL;
+			(void) fr_deletetimeoutqueue(oifq);
 
-		(void) fr_deletetimeoutqueue(oifq);
+			MUTEX_EXIT(&oifq->ifq_lock);
 
-		MUTEX_EXIT(&oifq->ifq_lock);
+			MUTEX_ENTER(&nifq->ifq_lock);
 
-		MUTEX_ENTER(&nifq->ifq_lock);
+			tqe->tqe_ifq = nifq;
+			nifq->ifq_ref++;
+		}
 
-		tqe->tqe_ifq = nifq;
-		nifq->ifq_ref++;
+		/*
+		 * Add to the bottom of the new queue
+		 */
+		tqe->tqe_die = fr_ticks + nifq->ifq_ttl;
+		tqe->tqe_pnext = nifq->ifq_tail;
+		*nifq->ifq_tail = tqe;
+		nifq->ifq_tail = &tqe->tqe_next;
 	}
-
-	/*
-	 * Add to the bottom of the new queue
-	 */
-	tqe->tqe_die = fr_ticks + nifq->ifq_ttl;
-	tqe->tqe_pnext = nifq->ifq_tail;
-	*nifq->ifq_tail = tqe;
-	nifq->ifq_tail = &tqe->tqe_next;
 	MUTEX_EXIT(&nifq->ifq_lock);
 }
 
@@ -5573,7 +5567,7 @@ fr_info_t *fin;
 
 		if (dosum)
 			sum = fr_cksum(fin->fin_m, fin->fin_ip,
-				       fin->fin_p, fin->fin_dp);
+				       fin->fin_p, fin->fin_dp, fin->fin_plen);
 #if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6) && defined(ICK_VALID)
 	}
 #endif
diff --git a/sys/contrib/ipfilter/netinet/ip_auth.c b/sys/contrib/ipfilter/netinet/ip_auth.c
index b6f0844..0f0c2ff 100644
--- a/sys/contrib/ipfilter/netinet/ip_auth.c
+++ b/sys/contrib/ipfilter/netinet/ip_auth.c
@@ -117,12 +117,13 @@ extern struct ifqueue   ipintrq;		/* ip packet input queue */
 /* END OF INCLUDES */
 
 #if !defined(lint)
-static const char rcsid[] = "@(#)$Id: ip_auth.c,v 2.73.2.5 2005/06/12 07:18:14 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_auth.c,v 2.73.2.13 2006/03/29 11:19:55 darrenr Exp $";
 #endif
 
 
-#if SOLARIS
+#if SOLARIS && defined(_KERNEL)
 extern kcondvar_t ipfauthwait;
+extern struct pollhead iplpollhead[IPL_LOGSIZE];
 #endif /* SOLARIS */
 #if defined(linux) && defined(_KERNEL)
 wait_queue_head_t     fr_authnext_linux;
@@ -317,7 +318,7 @@ fr_info_t *fin;
 
 	fra = fr_auth + i;
 	fra->fra_index = i;
-	fra->fra_pass = 0;
+	fra->fra_pass = fin->fin_fr->fr_flags;
 	fra->fra_age = fr_defaultauthage;
 	bcopy((char *)fin, (char *)&fra->fra_info, sizeof(*fin));
 #if !defined(sparc) && !defined(m68k)
@@ -339,17 +340,15 @@ fr_info_t *fin;
 	}
 #endif
 #if SOLARIS && defined(_KERNEL)
+	COPYIFNAME(fin->fin_ifp, fra->fra_info.fin_ifname);
 	m->b_rptr -= qpi->qpi_off;
 	fr_authpkts[i] = *(mblk_t **)fin->fin_mp;
 	fra->fra_q = qpi->qpi_q;	/* The queue can disappear! */
+	fra->fra_m = *fin->fin_mp;
+	fra->fra_info.fin_mp = &fra->fra_m;
 	cv_signal(&ipfauthwait);
+	pollwakeup(&iplpollhead[IPL_LOGAUTH], POLLIN|POLLRDNORM);
 #else
-# if defined(BSD) && !defined(sparc) && (BSD >= 199306)
-	if (!fin->fin_out) {
-		ip->ip_len = htons(ip->ip_len);
-		ip->ip_off = htons(ip->ip_off);
-	}
-# endif
 	fr_authpkts[i] = m;
 	WAKEUP(&fr_authnext,0);
 #endif
@@ -362,15 +361,15 @@ caddr_t data;
 ioctlcmd_t cmd;
 int mode;
 {
+	frauth_t auth, *au = &auth, *fra;
+	int i, error = 0, len;
+	char *t;
 	mb_t *m;
 #if defined(_KERNEL) && !defined(MENTAT) && !defined(linux) && \
     (!defined(__FreeBSD_version) || (__FreeBSD_version < 501000))
 	struct ifqueue *ifq;
 	SPL_INT(s);
 #endif
-	frauth_t auth, *au = &auth, *fra;
-	int i, error = 0, len;
-	char *t;
 
 	switch (cmd)
 	{
@@ -399,10 +398,14 @@ int mode;
 	case SIOCAUTHW:
 fr_authioctlloop:
 		error = fr_inobj(data, au, IPFOBJ_FRAUTH);
+		if (error != 0)
+			break;
 		READ_ENTER(&ipf_auth);
 		if ((fr_authnext != fr_authend) && fr_authpkts[fr_authnext]) {
 			error = fr_outobj(data, &fr_auth[fr_authnext],
 					  IPFOBJ_FRAUTH);
+			if (error != 0)
+				break;
 			if (auth.fra_len != 0 && auth.fra_buf != NULL) {
 				/*
 				 * Copy packet contents out to user space if
@@ -416,11 +419,12 @@ fr_authioctlloop:
 				for (t = auth.fra_buf; m && (len > 0); ) {
 					i = MIN(M_LEN(m), len);
 					error = copyoutptr(MTOD(m, char *),
-							  t, i);
+							   &t, i);
 					len -= i;
 					t += i;
 					if (error != 0)
 						break;
+					m = m->m_next;
 				}
 			}
 			RWLOCK_EXIT(&ipf_auth);
@@ -473,10 +477,8 @@ fr_authioctlloop:
 #endif
 		MUTEX_EXIT(&ipf_authmx);
 		READ_ENTER(&ipf_global);
-		if (error == 0) {
-			READ_ENTER(&ipf_auth);
+		if (error == 0)
 			goto fr_authioctlloop;
-		}
 		break;
 
 	case SIOCAUTHR:
@@ -487,6 +489,7 @@ fr_authioctlloop:
 		WRITE_ENTER(&ipf_auth);
 		i = au->fra_index;
 		fra = fr_auth + i;
+		error = 0;
 		if ((i < 0) || (i >= fr_authsize) ||
 		    (fra->fra_info.fin_id != au->fra_info.fin_id)) {
 			RWLOCK_EXIT(&ipf_auth);
@@ -501,7 +504,11 @@ fr_authioctlloop:
 #ifdef	_KERNEL
 		if ((m != NULL) && (au->fra_info.fin_out != 0)) {
 # ifdef MENTAT
-			error = !putq(fra->fra_q, m);
+			error = ipf_inject(&fra->fra_info);
+			if (error != 0) {
+				FREE_MB_T(m);
+				error = ENOBUFS;
+			}
 # else /* MENTAT */
 #  if defined(linux) || defined(AIX)
 #  else
@@ -521,7 +528,11 @@ fr_authioctlloop:
 				fr_authstats.fas_sendok++;
 		} else if (m) {
 # ifdef MENTAT
-			error = !putq(fra->fra_q, m);
+			error = ipf_inject(&fra->fra_info);
+			if (error != 0) {
+				FREE_MB_T(m);
+				error = ENOBUFS;
+			}
 # else /* MENTAT */
 #  if defined(linux) || defined(AIX)
 #  else
@@ -552,10 +563,6 @@ fr_authioctlloop:
 				fr_authstats.fas_queok++;
 		} else
 			error = EINVAL;
-# ifdef MENTAT
-		if (error != 0)
-			error = EINVAL;
-# else /* MENTAT */
 		/*
 		 * If we experience an error which will result in the packet
 		 * not being processed, make sure we advance to the next one.
@@ -579,7 +586,6 @@ fr_authioctlloop:
 				}
 			}
 		}
-# endif /* MENTAT */
 #endif /* _KERNEL */
 		SPL_X(s);
 		break;
@@ -794,3 +800,9 @@ int fr_authflush()
 
 	return num_flushed;
 }
+
+
+int fr_auth_waiting()
+{
+	return (fr_authnext != fr_authend) && fr_authpkts[fr_authnext];
+}
diff --git a/sys/contrib/ipfilter/netinet/ip_auth.h b/sys/contrib/ipfilter/netinet/ip_auth.h
index 3892778..22c69b7 100644
--- a/sys/contrib/ipfilter/netinet/ip_auth.h
+++ b/sys/contrib/ipfilter/netinet/ip_auth.h
@@ -3,7 +3,7 @@
  *
  * See the IPFILTER.LICENCE file for details on licencing.
  *
- * $Id: ip_auth.h,v 2.16 2003/07/25 12:29:56 darrenr Exp $
+ * $Id: ip_auth.h,v 2.16.2.2 2006/03/16 06:45:49 darrenr Exp $
  *
  */
 #ifndef	__IP_AUTH_H__
@@ -20,6 +20,7 @@ typedef struct  frauth {
 	char	*fra_buf;
 #ifdef	MENTAT
 	queue_t	*fra_q;
+	mb_t	*fra_m;
 #endif
 } frauth_t;
 
@@ -60,5 +61,6 @@ extern	mb_t	**fr_authpkts;
 extern	int	fr_newauth __P((mb_t *, fr_info_t *));
 extern	int	fr_preauthcmd __P((ioctlcmd_t, frentry_t *, frentry_t **));
 extern	int	fr_auth_ioctl __P((caddr_t, ioctlcmd_t, int));
+extern	int	fr_auth_waiting __P((void));
 
 #endif	/* __IP_AUTH_H__ */
diff --git a/sys/contrib/ipfilter/netinet/ip_compat.h b/sys/contrib/ipfilter/netinet/ip_compat.h
index f48a98d..0a294cf 100644
--- a/sys/contrib/ipfilter/netinet/ip_compat.h
+++ b/sys/contrib/ipfilter/netinet/ip_compat.h
@@ -4,7 +4,7 @@
  * See the IPFILTER.LICENCE file for details on licencing.
  *
  * @(#)ip_compat.h	1.8 1/14/96
- * $Id: ip_compat.h,v 2.142.2.33 2005/12/04 23:40:17 darrenr Exp $
+ * $Id: ip_compat.h,v 2.142.2.36 2006/03/26 05:50:29 darrenr Exp $
  */
 
 #ifndef	__IP_COMPAT_H__
@@ -441,6 +441,7 @@ extern	void	*get_unit __P((char *, int));
 				  wakeup(id + x); \
 				  spinunlock(_l); \
 				}
+#  define	POLLWAKEUP(x)	;
 #  define	KMALLOC(a, b)	MALLOC((a), b, sizeof(*(a)), M_IOSYS, M_NOWAIT)
 #  define	KMALLOCS(a, b, c)	MALLOC((a), b, (c), M_IOSYS, M_NOWAIT)
 #  define	KFREE(x)	kmem_free((char *)(x), sizeof(*(x)))
@@ -578,6 +579,7 @@ typedef struct {
 #  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
 #  define	SLEEP(id, n)	sleep((id), PZERO+1)
 #  define	WAKEUP(id,x)	wakeup(id+x)
+#  define	POLLWAKEUP(x)	;
 #  define	KFREE(x)	kmem_free((char *)(x), sizeof(*(x)))
 #  define	KFREES(x,s)	kmem_free((char *)(x), (s))
 #  define	GETIFP(n,v)	ifunit(n)
@@ -659,6 +661,7 @@ typedef struct mbuf mb_t;
 #  define	GETIFP(n, v)		ifunit(n)
 #  define	GET_MINOR		getminor
 #  define	WAKEUP(id,x)		wakeup(id + x)
+#  define	POLLWAKEUP(x)		;
 #  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
 #  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
 #  define	BCOPYIN(a,b,c)	bcopy((caddr_t)(a), (caddr_t)(b), (c))
@@ -1029,6 +1032,7 @@ typedef	u_int32_t	u_32_t;
 #  define	KFREES(x,s)	kmem_free((char *)(x), (s))
 #  define	SLEEP(id, n)	sleep((id), PZERO+1)
 #  define	WAKEUP(id,x)	wakeup(id + x)
+#  define	POLLWAKEUP(x)	;
 #  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
 #  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
 
@@ -1074,6 +1078,7 @@ struct ip6_ext {
 #  define	FREE_MB_T(m)	kfree_skb(m)
 #  define	GETKTIME(x)	do_gettimeofday((struct timeval *)x)
 #  define	SLEEP(x,s)	0, interruptible_sleep_on(x##_linux)
+#  define	POLLWAKEUP(x)	;
 #  define	WAKEUP(x,y)	wake_up(x##_linux + y)
 #  define	UIOMOVE(a,b,c,d)	uiomove(a,b,c,d)
 #  define	USE_MUTEXES
@@ -1265,6 +1270,7 @@ extern void* getifp __P((char *, int));
 #  define	GET_MINOR		minor
 #  define	SLEEP(id, n)	sleepx((id), PZERO+1, 0)
 #  define	WAKEUP(id,x)	wakeup(id)
+#  define	POLLWAKEUP(x)	;
 #  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
 #  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
 #  define	BCOPYIN(a,b,c)	bcopy((caddr_t)(a), (caddr_t)(b), (c))
@@ -1429,6 +1435,7 @@ typedef	struct	mb_s	{
 # define	FREE_MB_T(x)
 # define	SLEEP(x,y)	1;
 # define	WAKEUP(x,y)	;
+# define	POLLWAKEUP(y)	;
 # define	IPF_PANIC(x,y)	;
 # define	PANIC(x,y)	;
 # define	SPL_NET(x)	;
@@ -1451,6 +1458,7 @@ typedef	struct	mb_s	{
 # define	UIOMOVE(a,b,c,d)	ipfuiomove(a,b,c,d)
 extern	void	m_copydata __P((mb_t *, int, int, caddr_t));
 extern	int	ipfuiomove __P((caddr_t, int, int, struct uio *));
+extern	int	bcopywrap __P((void *, void *, size_t));
 # ifndef CACHE_HASH
 #  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
 				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
@@ -1529,6 +1537,9 @@ typedef	struct ip6_hdr	ip6_t;
 #endif
 
 #if defined(_KERNEL)
+# ifdef BSD
+extern struct selinfo ipfselwait[];
+# endif
 # ifdef MENTAT
 #  define	COPYDATA	mb_copydata
 #  define	COPYBACK	mb_copyback
@@ -1578,6 +1589,7 @@ MALLOC_DECLARE(M_IPFILTER);
 #  define	UIOMOVE(a,b,c,d)	uiomove(a,b,d)
 #  define	SLEEP(id, n)	tsleep((id), PPAUSE|PCATCH, n, 0)
 #  define	WAKEUP(id,x)	wakeup(id+x)
+#  define	POLLWAKEUP(x)	selwakeup(ipfselwait+x)
 #  define	GETIFP(n, v)	ifunit(n)
 # endif /* (Free)BSD */
 
diff --git a/sys/contrib/ipfilter/netinet/ip_fil.h b/sys/contrib/ipfilter/netinet/ip_fil.h
index 45d5bb4..5a13993 100644
--- a/sys/contrib/ipfilter/netinet/ip_fil.h
+++ b/sys/contrib/ipfilter/netinet/ip_fil.h
@@ -4,7 +4,7 @@
  * See the IPFILTER.LICENCE file for details on licencing.
  *
  * @(#)ip_fil.h	1.35 6/5/96
- * $Id: ip_fil.h,v 2.170.2.23 2005/12/04 23:39:28 darrenr Exp $
+ * $Id: ip_fil.h,v 2.170.2.29 2006/03/29 11:19:55 darrenr Exp $
  */
 
 #ifndef	__IP_FIL_H__
@@ -305,6 +305,7 @@ typedef	struct	fr_info	{
 #ifdef	MENTAT
 	mb_t	*fin_qfm;		/* pointer to mblk where pkt starts */
 	void	*fin_qpi;
+	char	fin_ifname[LIFNAMSIZ];
 #endif
 #ifdef	__sgi
 	void	*fin_hbuf;
@@ -1133,6 +1134,17 @@ typedef	struct	ipftune	{
 # endif
 #endif
 
+#ifdef _KERNEL
+# define	FR_VERBOSE(verb_pr)
+# define	FR_DEBUG(verb_pr)
+#else
+extern	void	debug __P((char *, ...));
+extern	void	verbose __P((char *, ...));
+# define	FR_VERBOSE(verb_pr)	verbose verb_pr
+# define	FR_DEBUG(verb_pr)	debug verb_pr
+#endif
+
+
 #ifndef	_KERNEL
 extern	int	fr_check __P((struct ip *, int, void *, int, mb_t **));
 extern	int	(*fr_checkp) __P((ip_t *, int, void *, int, mb_t **));
@@ -1148,6 +1160,7 @@ extern	int	iplioctl __P((int, ioctlcmd_t, caddr_t, int));
 extern	int	iplopen __P((dev_t, int));
 extern	int	iplclose __P((dev_t, int));
 extern	void	m_freem __P((mb_t *));
+extern	int	bcopywrap __P((void *, void *, size_t));
 #else /* #ifndef _KERNEL */
 # if defined(__NetBSD__) && defined(PFIL_HOOKS)
 extern	void	ipfilterattach __P((int));
@@ -1259,7 +1272,7 @@ extern	ipfrwlock_t	ipf_mutex, ipf_global, ip_poolrw, ipf_ipidfrag;
 extern	ipfrwlock_t	ipf_frag, ipf_state, ipf_nat, ipf_natfrag, ipf_auth;
 extern	ipfrwlock_t	ipf_frcache;
 
-extern	char	*memstr __P((const char *, char *, int, int));
+extern	char	*memstr __P((const char *, char *, size_t, size_t));
 extern	int	count4bits __P((u_32_t));
 extern	int	frrequest __P((int, ioctlcmd_t, caddr_t, int, int));
 extern	char	*getifname __P((struct ifnet *));
@@ -1316,6 +1329,7 @@ extern	void	fr_delgroup __P((char *, minor_t, int));
 extern	frgroup_t *fr_findgroup __P((char *, minor_t, int, frgroup_t ***));
 
 extern	int	fr_loginit __P((void));
+extern	int	ipflog_canread __P((int));
 extern	int	ipflog_clear __P((minor_t));
 extern	int	ipflog_read __P((minor_t, uio_t *));
 extern	int	ipflog __P((fr_info_t *, u_int));
@@ -1324,7 +1338,7 @@ extern	void	fr_logunload __P((void));
 
 extern	frentry_t	*fr_acctpkt __P((fr_info_t *, u_32_t *));
 extern	int		fr_copytolog __P((int, char *, int));
-extern	u_short		fr_cksum __P((mb_t *, ip_t *, int, void *));
+extern	u_short		fr_cksum __P((mb_t *, ip_t *, int, void *, int));
 extern	void		fr_deinitialise __P((void));
 extern	frentry_t 	*fr_dolog __P((fr_info_t *, u_32_t *));
 extern	frentry_t 	*fr_dstgrpmap __P((fr_info_t *, u_32_t *));
diff --git a/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c b/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
index 760122e..d361bea 100644
--- a/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
+++ b/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
@@ -5,7 +5,7 @@
  */
 #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_freebsd.c,v 2.53.2.27 2005/08/20 13:48:19 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_fil_freebsd.c,v 2.53.2.32 2006/03/25 13:03:01 darrenr Exp $";
 #endif
 
 #if defined(KERNEL) || defined(_KERNEL)
@@ -55,6 +55,7 @@ static const char rcsid[] = "@(#)$Id: ip_fil_freebsd.c,v 2.53.2.27 2005/08/20 13
 #endif
 #include <sys/protosw.h>
 #include <sys/socket.h>
+#include <sys/selinfo.h>
 
 #include <net/if.h>
 #if __FreeBSD_version >= 300000
@@ -131,6 +132,7 @@ int		ipf_locks_done = 0;
 #if (__FreeBSD_version >= 300000)
 struct callout_handle fr_slowtimer_ch;
 #endif
+struct	selinfo	ipfselwait[IPL_LOGSIZE];
 
 #if (__FreeBSD_version >= 500011)
 # include <sys/conf.h>
@@ -300,6 +302,7 @@ pfil_error:
 		fr_checkp = fr_check;
 	}
 
+	bzero((char *)ipfselwait, sizeof(ipfselwait));
 	bzero((char *)frcache, sizeof(frcache));
 	fr_running = 1;
 
@@ -476,9 +479,11 @@ int mode;
 	}
 
 	SPL_NET(s);
+	READ_ENTER(&ipf_global);
 
 	error = fr_ioctlswitch(unit, data, cmd, mode);
 	if (error != -1) {
+		RWLOCK_EXIT(&ipf_global);
 		SPL_X(s);
 		return error;
 	}
@@ -619,7 +624,10 @@ int mode;
 		error = EINVAL;
 		break;
 	}
+
+	RWLOCK_EXIT(&ipf_global);
 	SPL_X(s);
+
 	return error;
 }
 
@@ -742,14 +750,18 @@ dev_t dev;
 #endif
 register struct uio *uio;
 {
+	u_int	xmin = GET_MINOR(dev);
+
+	if (xmin < 0)
+		return ENXIO;
 
 # ifdef	IPFILTER_SYNC
-	if (GET_MINOR(dev) == IPL_LOGSYNC)
+	if (xmin == IPL_LOGSYNC)
 		return ipfsync_read(uio);
 # endif
 
 #ifdef IPFILTER_LOG
-	return ipflog_read(GET_MINOR(dev), uio);
+	return ipflog_read(xmin, uio);
 #else
 	return ENXIO;
 #endif
@@ -1155,6 +1167,8 @@ frdest_t *fdp;
 	u_short ip_off;
 	frentry_t *fr;
 
+	ro = NULL;
+
 #ifdef M_WRITABLE
 	/*
 	* HOT FIX/KLUDGE:
@@ -1168,15 +1182,15 @@ frdest_t *fdp;
 	* problem.
 	*/
 	if (M_WRITABLE(m) == 0) {
-		if ((m0 = m_dup(m, M_DONTWAIT)) != 0) {
+		m0 = m_dup(m, M_DONTWAIT);
+		if (m0 != 0) {
 			FREE_MB_T(m);
 			m = m0;
 			*mpp = m;
 		} else {
 			error = ENOBUFS;
 			FREE_MB_T(m);
-			*mpp = NULL;
-			fr_frouteok[1]++;
+			goto done;
 		}
 	}
 #endif
@@ -1218,18 +1232,8 @@ frdest_t *fdp;
 		goto bad;
 	}
 
-	/*
-	 * 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))
-			return -1;
-	}
-	if (fdp != NULL) {
-		if (fdp->fd_ip.s_addr != 0)
-			dst->sin_addr = fdp->fd_ip;
-	}
+	if ((fdp != NULL) && (fdp->fd_ip.s_addr != 0))
+		dst->sin_addr = fdp->fd_ip;
 
 	dst->sin_len = sizeof(*dst);
 	rtalloc(ro);
@@ -1346,6 +1350,7 @@ frdest_t *fdp;
 		else
 			mhip->ip_off |= IP_MF;
 		mhip->ip_len = htons((u_short)(len + mhlen));
+		*mnext = m;
 		m->m_next = m_copy(m0, off, len);
 		if (m->m_next == 0) {
 			error = ENOBUFS;	/* ??? */
@@ -1356,7 +1361,6 @@ frdest_t *fdp;
 		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;
 	}
 	/*
@@ -1385,7 +1389,7 @@ done:
 	else
 		fr_frouteok[1]++;
 
-	if (ro->ro_rt) {
+	if ((ro != NULL) && (ro->ro_rt != NULL)) {
 		RTFREE(ro->ro_rt);
 	}
 	*mpp = NULL;
@@ -1488,6 +1492,9 @@ struct in_addr *inp, *inpmask;
 	else if (atype == FRI_PEERADDR)
 		sock = ifa->ifa_dstaddr;
 
+	if (sock == NULL)
+		return -1;
+
 #ifdef USE_INET6
 	if (v == 6) {
 		return fr_ifpfillv6addr(atype, (struct sockaddr_in6 *)sock,
diff --git a/sys/contrib/ipfilter/netinet/ip_frag.c b/sys/contrib/ipfilter/netinet/ip_frag.c
index db1a0af..18360ce 100644
--- a/sys/contrib/ipfilter/netinet/ip_frag.c
+++ b/sys/contrib/ipfilter/netinet/ip_frag.c
@@ -100,7 +100,7 @@ extern struct timeout fr_slowtimer_ch;
 
 #if !defined(lint)
 static const char sccsid[] = "@(#)ip_frag.c	1.11 3/24/96 (C) 1993-2000 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ip_frag.c,v 2.77.2.4 2005/08/20 13:48:21 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_frag.c,v 2.77.2.5 2006/02/26 08:26:54 darrenr Exp $";
 #endif
 
 
@@ -224,6 +224,7 @@ ipfr_t *table[];
 {
 	ipfr_t *fra, frag;
 	u_int idx, off;
+	frentry_t *fr;
 	ip_t *ip;
 
 	if (ipfr_inuse >= IPFT_SIZE)
@@ -275,12 +276,9 @@ ipfr_t *table[];
 		return NULL;
 	}
 
-	fra->ipfr_rule = fin->fin_fr;
-	if (fra->ipfr_rule != NULL) {
-
-		frentry_t *fr;
-
-		fr = fin->fin_fr;
+	fr = fin->fin_fr;
+	fra->ipfr_rule = fr;
+	if (fr != NULL) {
 		MUTEX_ENTER(&fr->fr_lock);
 		fr->fr_ref++;
 		MUTEX_EXIT(&fr->fr_lock);
diff --git a/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c b/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c
index 860d75e..e72d6fe 100644
--- a/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c
@@ -6,7 +6,7 @@
  * Simple FTP transparent proxy for in-kernel use.  For use with the NAT
  * code.
  *
- * $Id: ip_ftp_pxy.c,v 2.88.2.16 2005/12/04 23:39:27 darrenr Exp $
+ * $Id: ip_ftp_pxy.c,v 2.88.2.19 2006/04/01 10:14:53 darrenr Exp $
  */
 
 #define	IPF_FTP_PROXY
@@ -366,7 +366,7 @@ int dlen;
 				fi.fin_fi.fi_daddr = nat->nat_inip.s_addr;
 				ip->ip_dst = nat->nat_inip;
 			}
-			(void) fr_addstate(&fi, &nat2->nat_state, SI_W_DPORT);
+			(void) fr_addstate(&fi, NULL, SI_W_DPORT);
 			if (fi.fin_state != NULL)
 				fr_statederef(&fi, (ipstate_t **)&fi.fin_state);
 		}
@@ -728,7 +728,7 @@ u_int data_ip;
 				fi.fin_fi.fi_daddr = nat->nat_inip.s_addr;
 				ip->ip_dst = nat->nat_inip;
 			}
-			(void) fr_addstate(&fi, &nat2->nat_state, sflags);
+			(void) fr_addstate(&fi, NULL, sflags);
 			if (fi.fin_state != NULL)
 				fr_statederef(&fi, (ipstate_t **)&fi.fin_state);
 		}
@@ -1027,13 +1027,14 @@ int rv;
 	if (ippr_ftp_debug > 4)
 		printf("ippr_ftp_process: mlen %d\n", mlen);
 
-	if (mlen <= 0) {
-		if ((tcp->th_flags & TH_OPENING) == TH_OPENING) {
-			f->ftps_seq[0] = thseq + 1;
-			t->ftps_seq[0] = thack;
-		}
+	if ((mlen == 0) && ((tcp->th_flags & TH_OPENING) == TH_OPENING)) {
+		f->ftps_seq[0] = thseq + 1;
+		t->ftps_seq[0] = thack;
+		return 0;
+	} else if (mlen < 0) {
 		return 0;
 	}
+
 	aps = nat->nat_aps;
 
 	sel = aps->aps_sel[1 - rv];
@@ -1423,7 +1424,7 @@ int dlen;
 		ap += *s++ - '0';
 	}
 
-	if (!s)
+	if (!*s)
 		return 0;
 
 	if (*s == '|')
diff --git a/sys/contrib/ipfilter/netinet/ip_h323_pxy.c b/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
index 1933203..7fc6227 100644
--- a/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
@@ -1,5 +1,3 @@
-/*	$FreeBSD$	*/
-
 /*
  * Copyright 2001, QNX Software Systems Ltd. All Rights Reserved
  *
@@ -248,7 +246,7 @@ nat_t *nat;
 	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);
+	datlen = fin->fin_dlen - (TCP_OFF(tcp) << 2);
 	if (find_port(ipaddr, data, datlen, &off, &port) == 0) {
 		fr_info_t fi;
 		nat_t     *nat2;
diff --git a/sys/contrib/ipfilter/netinet/ip_log.c b/sys/contrib/ipfilter/netinet/ip_log.c
index 6618c6d..5508557 100644
--- a/sys/contrib/ipfilter/netinet/ip_log.c
+++ b/sys/contrib/ipfilter/netinet/ip_log.c
@@ -3,7 +3,7 @@
  *
  * See the IPFILTER.LICENCE file for details on licencing.
  *
- * $Id: ip_log.c,v 2.75.2.7 2005/06/11 07:47:44 darrenr Exp $
+ * $Id: ip_log.c,v 2.75.2.11 2006/03/26 13:50:47 darrenr Exp $
  */
 #include <sys/param.h>
 #if defined(KERNEL) || defined(_KERNEL)
@@ -65,6 +65,10 @@ struct file;
 #  include <sys/dir.h>
 # endif
 # include <sys/mbuf.h>
+# include <sys/select.h>
+# if __FreeBSD_version >= 500000
+#  include <sys/selinfo.h>
+# endif
 #else
 # if !defined(__hpux) && defined(_KERNEL)
 #  include <sys/filio.h>
@@ -145,6 +149,7 @@ wait_queue_head_t	iplh_linux[IPL_LOGSIZE];
 # endif
 # if SOLARIS
 extern	kcondvar_t	iplwait;
+extern	struct pollhead	iplpollhead[IPL_LOGSIZE];
 # endif
 
 iplog_t	**iplh[IPL_LOGSIZE], *iplt[IPL_LOGSIZE], *ipll[IPL_LOGSIZE];
@@ -503,9 +508,11 @@ int *types, cnt;
 # if SOLARIS && defined(_KERNEL)
 	cv_signal(&iplwait);
 	MUTEX_EXIT(&ipl_mutex);
+	pollwakeup(&iplpollhead[dev], POLLRDNORM);
 # else
 	MUTEX_EXIT(&ipl_mutex);
-	WAKEUP(iplh,dev);
+	WAKEUP(iplh, dev);
+	POLLWAKEUP(dev);
 # endif
 	SPL_X(s);
 # ifdef	IPL_SELECT
@@ -663,4 +670,19 @@ minor_t unit;
 	SPL_X(s);
 	return used;
 }
+
+
+/* ------------------------------------------------------------------------ */
+/* Function:    ipflog_canread                                              */
+/* Returns:     int    - 0 == no data to read, 1 = data present             */
+/* Parameters:  unit(I) - device we are reading from                        */
+/*                                                                          */
+/* Returns an indication of whether or not there is data present in the     */
+/* current buffer for the selected ipf device.                              */
+/* ------------------------------------------------------------------------ */
+int ipflog_canread(unit)
+int unit;
+{
+	return iplt[unit] != NULL;
+}
 #endif /* IPFILTER_LOG */
diff --git a/sys/contrib/ipfilter/netinet/ip_nat.c b/sys/contrib/ipfilter/netinet/ip_nat.c
index 30bba07..af73ebf 100644
--- a/sys/contrib/ipfilter/netinet/ip_nat.c
+++ b/sys/contrib/ipfilter/netinet/ip_nat.c
@@ -107,7 +107,7 @@ extern struct ifnet vpnif;
 
 #if !defined(lint)
 static const char sccsid[] = "@(#)ip_nat.c	1.11 6/5/96 (C) 1995 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ip_nat.c,v 2.195.2.47 2005/11/14 17:13:35 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_nat.c,v 2.195.2.56 2006/04/01 10:15:34 darrenr Exp $";
 #endif
 
 
@@ -191,7 +191,7 @@ static	int	nat_siocaddnat __P((ipnat_t *, ipnat_t **, int));
 static	void	nat_siocdelnat __P((ipnat_t *, ipnat_t **, int));
 static	int	nat_finalise __P((fr_info_t *, nat_t *, natinfo_t *,
 				      tcphdr_t *, nat_t **, int));
-static	void	nat_resolverule __P((ipnat_t *));
+static	int	nat_resolverule __P((ipnat_t *));
 static	nat_t	*fr_natclone __P((fr_info_t *, nat_t *));
 static	void	nat_mssclamp __P((tcphdr_t *, u_32_t, fr_info_t *, u_short *));
 static	int	nat_wildok __P((nat_t *, int, int, int, int));
@@ -865,11 +865,8 @@ int getlock;
 {
 	int error = 0, i, j;
 
-	nat_resolverule(n);
-	if (n->in_plabel[0] != '\0') {
-		if (n->in_apr == NULL)
-			return ENOENT;
-	}
+	if (nat_resolverule(n) != 0)
+		return ENOENT;
 
 	if ((n->in_age[0] == 0) && (n->in_age[1] != 0))
 		return EINVAL;
@@ -994,7 +991,7 @@ int getlock;
 /* from information passed to the kernel, then add it  to the appropriate   */
 /* NAT rule table(s).                                                       */
 /* ------------------------------------------------------------------------ */
-static void nat_resolverule(n)
+static int nat_resolverule(n)
 ipnat_t *n;
 {
 	n->in_ifnames[0][LIFNAMSIZ - 1] = '\0';
@@ -1005,12 +1002,15 @@ ipnat_t *n;
 		(void) strncpy(n->in_ifnames[1], n->in_ifnames[0], LIFNAMSIZ);
 		n->in_ifps[1] = n->in_ifps[0];
 	} else {
-		n->in_ifps[1] = fr_resolvenic(n->in_ifnames[0], 4);
+		n->in_ifps[1] = fr_resolvenic(n->in_ifnames[1], 4);
 	}
 
 	if (n->in_plabel[0] != '\0') {
 		n->in_apr = appr_lookup(n->in_p, n->in_plabel);
+		if (n->in_apr == NULL)
+			return -1;
 	}
+	return 0;
 }
 
 
@@ -1338,23 +1338,31 @@ int getlock;
 
 		ATOMIC_INC(nat_stats.ns_rules);
 
-		nat_resolverule(in);
+		if (nat_resolverule(in) != 0) {
+			error = ESRCH;
+			goto junkput;
+		}
 	}
 
 	/*
 	 * Check that the NAT entry doesn't already exist in the kernel.
+	 *
+	 * For NAT_OUTBOUND, we're lookup for a duplicate MAP entry.  To do
+	 * this, we check to see if the inbound combination of addresses and
+	 * ports is already known.  Similar logic is applied for NAT_INBOUND.
+	 * 
 	 */
 	bzero((char *)&fin, sizeof(fin));
 	fin.fin_p = nat->nat_p;
+	fin.fin_ifp = nat->nat_ifps[0];
 	if (nat->nat_dir == NAT_OUTBOUND) {
 		fin.fin_data[0] = ntohs(nat->nat_oport);
 		fin.fin_data[1] = ntohs(nat->nat_outport);
-		fin.fin_ifp = nat->nat_ifps[1];
 		if (getlock) {
 			READ_ENTER(&ipf_nat);
 		}
-		n = nat_inlookup(&fin, 0, fin.fin_p, nat->nat_oip,
-				  nat->nat_inip);
+		n = nat_inlookup(&fin, nat->nat_flags, fin.fin_p,
+				 nat->nat_oip, nat->nat_inip);
 		if (getlock) {
 			RWLOCK_EXIT(&ipf_nat);
 		}
@@ -1365,12 +1373,11 @@ int getlock;
 	} else if (nat->nat_dir == NAT_INBOUND) {
 		fin.fin_data[0] = ntohs(nat->nat_outport);
 		fin.fin_data[1] = ntohs(nat->nat_oport);
-		fin.fin_ifp = nat->nat_ifps[0];
 		if (getlock) {
 			READ_ENTER(&ipf_nat);
 		}
-		n = nat_outlookup(&fin, 0, fin.fin_p, nat->nat_outip,
-				 nat->nat_oip);
+		n = nat_outlookup(&fin, nat->nat_flags, fin.fin_p,
+				  nat->nat_outip, nat->nat_oip);
 		if (getlock) {
 			RWLOCK_EXIT(&ipf_nat);
 		}
@@ -1435,6 +1442,12 @@ int getlock;
 			fr->fr_ref = 1;
 			(void) fr_outobj(data, ipnn, IPFOBJ_NATSAVE);
 			bcopy((char *)&ipnn->ipn_fr, (char *)fr, sizeof(*fr));
+
+			fr->fr_ref = 1;
+			fr->fr_dsize = 0;
+			fr->fr_data = NULL;
+			fr->fr_type = FR_T_NONE;
+
 			MUTEX_NUKE(&fr->fr_lock);
 			MUTEX_INIT(&fr->fr_lock, "nat-filter rule lock");
 		} else {
@@ -1574,6 +1587,9 @@ int logtype;
 		MUTEX_EXIT(&ipf_nat_new);
 		return;
 	}
+	/*
+	 * At this point, nat_ref can be either 0 or -1
+	 */
 
 #ifdef	IPFILTER_SYNC
 	if (nat->nat_sync)
@@ -2152,6 +2168,9 @@ natinfo_t *ni;
 /* structure for a "MAP" rule (outgoing NAT translation); (2) deal with     */
 /* creating a new NAT structure for a "RDR" rule (incoming NAT translation) */
 /* and (3) building that structure and putting it into the NAT table(s).    */
+/*                                                                          */
+/* NOTE: natsave should NOT be used top point back to an ipstate_t struct   */
+/*       as it can result in memory being corrupted.                        */
 /* ------------------------------------------------------------------------ */
 nat_t *nat_new(fin, np, natsave, flags, direction)
 fr_info_t *fin;
@@ -2245,6 +2264,7 @@ int direction;
 		natl = nat_outlookup(fin, nflags, (u_int)fin->fin_p,
 				     fin->fin_src, fin->fin_dst);
 		if (natl != NULL) {
+			KFREE(nat);
 			nat = natl;
 			goto done;
 		}
@@ -2262,6 +2282,7 @@ int direction;
 		natl = nat_inlookup(fin, nflags, (u_int)fin->fin_p,
 				    fin->fin_src, fin->fin_dst);
 		if (natl != NULL) {
+			KFREE(nat);
 			nat = natl;
 			goto done;
 		}
@@ -2375,7 +2396,12 @@ int direction;
 
 	np = ni->nai_np;
 
-	COPYIFNAME(fin->fin_ifp, nat->nat_ifnames[0]);
+	if (np->in_ifps[0] != NULL) {
+		COPYIFNAME(np->in_ifps[0], nat->nat_ifnames[0]);
+	}
+	if (np->in_ifps[1] != NULL) {
+		COPYIFNAME(np->in_ifps[1], nat->nat_ifnames[1]);
+	}
 #ifdef	IPFILTER_SYNC
 	if ((nat->nat_flags & SI_CLONE) == 0)
 		nat->nat_sync = ipfsync_new(SMC_NAT, fin, nat);
@@ -2383,7 +2409,8 @@ int direction;
 
 	nat->nat_me = natsave;
 	nat->nat_dir = direction;
-	nat->nat_ifps[0] = fin->fin_ifp;
+	nat->nat_ifps[0] = np->in_ifps[0];
+	nat->nat_ifps[1] = np->in_ifps[1];
 	nat->nat_ptr = np;
 	nat->nat_p = fin->fin_p;
 	nat->nat_mssclamp = np->in_mssclamp;
@@ -2470,7 +2497,7 @@ int	rev;
 	nat->nat_ifnames[0][LIFNAMSIZ - 1] = '\0';
 	nat->nat_ifps[0] = fr_resolvenic(nat->nat_ifnames[0], 4);
 
-	if (nat->nat_ifnames[1][0] !='\0') {
+	if (nat->nat_ifnames[1][0] != '\0') {
 		nat->nat_ifnames[1][LIFNAMSIZ - 1] = '\0';
 		nat->nat_ifps[1] = fr_resolvenic(nat->nat_ifnames[1], 4);
 	} else {
@@ -2818,8 +2845,9 @@ int dir;
 		 *
 		 * Since the port fields are part of the TCP/UDP checksum
 		 * of the offending IP packet, you need to adjust that checksum
-		 * as well... but, if you change, you must change the icmp
-		 * checksum *again*, to reflect that change.
+		 * as well... except that the change in the port numbers should 
+		 * be offset by the checksum change, so we only need to change  
+		 * the ICMP checksum if we only change the ports.
 		 *
 		 * To further complicate: the TCP checksum is not in the first
 		 * 8 bytes of the offending ip packet, so it most likely is not
@@ -2854,21 +2882,14 @@ int dir;
 			 * The UDP checksum is optional, only adjust it if
 			 * it has been set.
 			 */
-			if ((oip->ip_p == IPPROTO_UDP) &&
-			    (dlen >= 8) && (*csump != 0)) {
+			if (oip->ip_p == IPPROTO_UDP) {
 				sumd = sum1 - sum2;
-				sumd2 += sumd;
 
-				sum1 = ntohs(*csump);
-				fix_datacksum(csump, sumd);
-				sum2 = ntohs(*csump);
-
-				/*
-				 * Fix ICMP checksum to compenstate
-				 * UDP checksum adjustment.
-				 */
-				CALC_SUMD(sum1, sum2, sumd);
-				sumd2 += sumd;
+				if ((dlen >= 8) && (*csump != 0)) {
+					fix_datacksum(csump, sumd);
+				} else {
+					sumd2 += sumd;
+				}
 			}
 
 			/*
@@ -2877,20 +2898,10 @@ int dir;
 			 * the other direction compared to the ICMP message.
 			 */
 			if (oip->ip_p == IPPROTO_TCP) {
-				if (dlen >= 18) {
-					sumd = sum1 - sum2;
-					sumd2 += sumd;
+				sumd = sum1 - sum2;
 
-					sum1 = ntohs(*csump);
+				if (dlen >= 18) {
 					fix_datacksum(csump, sumd);
-					sum2 = ntohs(*csump);
-
-					/*
-					 * Fix ICMP checksum to compensate
-					 * TCP checksum adjustment.
-					 */
-					CALC_SUMD(sum1, sum2, sumd);
-					sumd2 += sumd;
 				} else {
 					sumd = sum2 - sum1 + 1;
 					sumd2 += sumd;
@@ -2910,21 +2921,14 @@ int dir;
 			 * The UDP checksum is optional, only adjust
 			 * it if it has been set.
 			 */
-			if ((oip->ip_p == IPPROTO_UDP) &&
-			    (dlen >= 8) && (*csump != 0)) {
+			if (oip->ip_p == IPPROTO_UDP) {
 				sumd = sum1 - sum2;
-				sumd2 += sumd;
-
-				sum1 = ntohs(*csump);
-				fix_datacksum(csump, sumd);
-				sum2 = ntohs(*csump);
 
-				/*
-				 * Fix ICMP checksum to compensate
-				 * UDP checksum adjustment.
-				 */
-				CALC_SUMD(sum1, sum2, sumd);
-				sumd2 += sumd;
+				if ((dlen >= 8) && (*csump != 0)) {
+					fix_datacksum(csump, sumd);
+				} else {
+					sumd2 += sumd;
+				}
 			}
 
 			/*
@@ -2933,20 +2937,10 @@ int dir;
 			 * the other direction compared to the ICMP message.
 			 */
 			if (oip->ip_p == IPPROTO_TCP) {
-				if (dlen >= 18) {
-					sumd = sum1 - sum2;
-					sumd2 += sumd;
+				sumd = sum1 - sum2;
 
-					sum1 = ntohs(*csump);
+				if (dlen >= 18) {
 					fix_datacksum(csump, sumd);
-					sum2 = ntohs(*csump);
-
-					/*
-					 * Fix ICMP checksum to compensate
-					 * TCP checksum adjustment.
-					 */
-					CALC_SUMD(sum1, sum2, sumd);
-					sumd2 += sumd;
 				} else {
 					if (nat->nat_dir == NAT_INBOUND)
 						sumd = sum2 - sum1;
@@ -3039,10 +3033,7 @@ struct in_addr src , mapdst;
 	void *ifp;
 	u_int hv;
 
-	if (fin != NULL)
-		ifp = fin->fin_ifp;
-	else
-		ifp = NULL;
+	ifp = fin->fin_ifp;
 	sport = 0;
 	dport = 0;
 	gre = NULL;
@@ -3074,17 +3065,13 @@ struct in_addr src , mapdst;
 	hv = NAT_HASH_FN(src.s_addr, hv + sport, ipf_nattable_sz);
 	nat = nat_table[1][hv];
 	for (; nat; nat = nat->nat_hnext[1]) {
-		nflags = nat->nat_flags;
+		if (nat->nat_ifps[0] != NULL) {
+			if ((ifp != NULL) && (ifp != nat->nat_ifps[0]))
+				continue;
+		} else if (ifp != NULL)
+			nat->nat_ifps[0] = ifp;
 
-		if (ifp != NULL) {
-			if (nat->nat_dir == NAT_REDIRECT) {
-				if (ifp != nat->nat_ifps[0])
-					continue;
-			} else {
-				if (ifp != nat->nat_ifps[1])
-					continue;
-			}
-		}
+		nflags = nat->nat_flags;
 
 		if (nat->nat_oip.s_addr == src.s_addr &&
 		    nat->nat_outip.s_addr == dst &&
@@ -3149,15 +3136,11 @@ find_in_wild_ports:
 
 	nat = nat_table[1][hv];
 	for (; nat; nat = nat->nat_hnext[1]) {
-		if (ifp != NULL) {
-			if (nat->nat_dir == NAT_REDIRECT) {
-				if (ifp != nat->nat_ifps[0])
-					continue;
-			} else {
-				if (ifp != nat->nat_ifps[1])
-					continue;
-			}
-		}
+		if (nat->nat_ifps[0] != NULL) {
+			if ((ifp != NULL) && (ifp != nat->nat_ifps[0]))
+				continue;
+		} else if (ifp != NULL)
+			nat->nat_ifps[0] = ifp;
 
 		if (nat->nat_p != fin->fin_p)
 			continue;
@@ -3324,17 +3307,13 @@ struct in_addr src , dst;
 	hv = NAT_HASH_FN(dst.s_addr, hv + dport, ipf_nattable_sz);
 	nat = nat_table[0][hv];
 	for (; nat; nat = nat->nat_hnext[0]) {
-		nflags = nat->nat_flags;
+		if (nat->nat_ifps[1] != NULL) {
+			if ((ifp != NULL) && (ifp != nat->nat_ifps[1]))
+				continue;
+		} else if (ifp != NULL)
+			nat->nat_ifps[1] = ifp;
 
-		if (ifp != NULL) {
-			if (nat->nat_dir == NAT_REDIRECT) {
-				if (ifp != nat->nat_ifps[1])
-					continue;
-			} else {
-				if (ifp != nat->nat_ifps[0])
-					continue;
-			}
-		}
+		nflags = nat->nat_flags;
 
 		if (nat->nat_inip.s_addr == srcip &&
 		    nat->nat_oip.s_addr == dst.s_addr &&
@@ -3389,15 +3368,11 @@ find_out_wild_ports:
 
 	nat = nat_table[0][hv];
 	for (; nat; nat = nat->nat_hnext[0]) {
-		if (ifp != NULL) {
-			if (nat->nat_dir == NAT_REDIRECT) {
-				if (ifp != nat->nat_ifps[1])
-					continue;
-			} else {
-				if (ifp != nat->nat_ifps[0])
-					continue;
-			}
-		}
+		if (nat->nat_ifps[1] != NULL) {
+			if ((ifp != NULL) && (ifp != nat->nat_ifps[1]))
+				continue;
+		} else if (ifp != NULL)
+			nat->nat_ifps[1] = ifp;
 
 		if (nat->nat_p != fin->fin_p)
 			continue;
@@ -3446,6 +3421,16 @@ find_out_wild_ports:
 /*                      entry for.                                          */
 /*                                                                          */
 /* Lookup the NAT tables to search for a matching redirect                  */
+/* The contents of natlookup_t should imitate those found in a packet that  */
+/* would be translated - ie a packet coming in for RDR or going out for MAP.*/
+/* We can do the lookup in one of two ways, imitating an inbound or         */
+/* outbound  packet.  By default we assume outbound, unless IPN_IN is set.  */
+/* For IN, the fields are set as follows:                                   */
+/*     nl_real* = source information                                        */
+/*     nl_out* = destination information (translated)                       */
+/* For an out packet, the fields are set like this:                         */
+/*     nl_in* = source information (untranslated)                           */
+/*     nl_out* = destination information (translated)                       */
 /* ------------------------------------------------------------------------ */
 nat_t *nat_lookupredir(np)
 natlookup_t *np;
@@ -3707,7 +3692,7 @@ maskloop:
 		hv = NAT_HASH_FN(iph, 0, ipf_natrules_sz);
 		for (np = nat_rules[hv]; np; np = np->in_mnext)
 		{
-			if ((np->in_ifps[0] && (np->in_ifps[0] != ifp)))
+			if ((np->in_ifps[1] && (np->in_ifps[1] != ifp)))
 				continue;
 			if (np->in_v != fin->fin_v)
 				continue;
@@ -4346,8 +4331,8 @@ void fr_natexpire()
 {
 	ipftq_t *ifq, *ifqnext;
 	ipftqent_t *tqe, *tqn;
-	SPL_INT(s);
 	int i;
+	SPL_INT(s);
 
 	SPL_NET(s);
 	WRITE_ENTER(&ipf_nat);
diff --git a/sys/contrib/ipfilter/netinet/ip_pptp_pxy.c b/sys/contrib/ipfilter/netinet/ip_pptp_pxy.c
index 0047e10..2ef2e17 100644
--- a/sys/contrib/ipfilter/netinet/ip_pptp_pxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_pptp_pxy.c
@@ -4,7 +4,7 @@
  * Simple PPTP transparent proxy for in-kernel use.  For use with the NAT
  * code.
  *
- * $Id: ip_pptp_pxy.c,v 2.10.2.11 2005/12/04 23:39:27 darrenr Exp $
+ * $Id: ip_pptp_pxy.c,v 2.10.2.13 2006/03/17 10:40:05 darrenr Exp $
  *
  */
 #define	IPF_PPTP_PROXY
@@ -93,7 +93,8 @@ nat_t *nat;
 	if (nat_outlookup(fin, 0, IPPROTO_GRE, nat->nat_inip,
 			  ip->ip_dst) != NULL) {
 		if (ippr_pptp_debug > 0)
-			printf("ippr_pptp_new: GRE session already exists\n");
+			printf("ippr_pptp_new: GRE session %s\n",
+			       "already exists");
 		return -1;
 	}
 
@@ -101,7 +102,8 @@ nat_t *nat;
 	KMALLOCS(aps->aps_data, pptp_pxy_t *, sizeof(*pptp));
 	if (aps->aps_data == NULL) {
 		if (ippr_pptp_debug > 0)
-			printf("ippr_pptp_new: malloc for aps_data failed\n");
+			printf("ippr_pptp_new: malloc for aps_data %s\n",
+			       "failed");
 		return -1;
 	}
 
@@ -208,10 +210,12 @@ pptp_pxy_t *pptp;
 		RWLOCK_EXIT(&ipf_state);
 	} else {
 		RWLOCK_EXIT(&ipf_state);
-		if (nat->nat_dir == NAT_INBOUND)
-			fi.fin_fi.fi_daddr = nat2->nat_inip.s_addr;
-		else
-			fi.fin_fi.fi_saddr = nat2->nat_inip.s_addr;
+		if (nat2 != NULL) {
+			if (nat->nat_dir == NAT_INBOUND)
+				fi.fin_fi.fi_daddr = nat2->nat_inip.s_addr;
+			else
+				fi.fin_fi.fi_saddr = nat2->nat_inip.s_addr;
+		}
 		fi.fin_ifp = NULL;
 		pptp->pptp_state = fr_addstate(&fi, &pptp->pptp_state,
 					       0);
diff --git a/sys/contrib/ipfilter/netinet/ip_proxy.c b/sys/contrib/ipfilter/netinet/ip_proxy.c
index 60b6ac0..8fdd98c 100644
--- a/sys/contrib/ipfilter/netinet/ip_proxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_proxy.c
@@ -103,7 +103,7 @@ struct file;
 /* END OF INCLUDES */
 
 #if !defined(lint)
-static const char rcsid[] = "@(#)$Id: ip_proxy.c,v 2.62.2.14 2005/06/18 02:41:33 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_proxy.c,v 2.62.2.16 2006/03/29 11:19:56 darrenr Exp $";
 #endif
 
 static int appr_fixseqack __P((fr_info_t *, ip_t *, ap_session_t *, int ));
@@ -323,8 +323,7 @@ int mode;
 		if (error == 0)
 			error = appr_ctl(&ctl);
 
-		if ((ctl.apc_dsize > 0) && (ptr != NULL) &&
-		    (ctl.apc_data == ptr)) {
+		if (ptr != NULL) {
 			KFREES(ptr, ctl.apc_dsize);
 		}
 		break;
@@ -563,8 +562,8 @@ nat_t *nat;
 		if (err != 0) {
 			short adjlen = err & 0xffff;
 
-			s1 = LONG_SUM(ip->ip_len - adjlen);
-			s2 = LONG_SUM(ip->ip_len);
+			s1 = LONG_SUM(fin->fin_plen - adjlen);
+			s2 = LONG_SUM(fin->fin_plen);
 			CALC_SUMD(s1, s2, sd);
 			fix_outcksum(fin, &ip->ip_sum, sd);
 		}
@@ -584,19 +583,23 @@ nat_t *nat;
 #if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
 			if (dosum)
 				tcp->th_sum = fr_cksum(fin->fin_qfm, ip,
-						       IPPROTO_TCP, tcp);
+						       IPPROTO_TCP, tcp,
+						       fin->fin_plen);
 #else
 			tcp->th_sum = fr_cksum(fin->fin_m, ip,
-					       IPPROTO_TCP, tcp);
+					       IPPROTO_TCP, tcp,
+					       fin->fin_plen);
 #endif
 		} else if ((udp != NULL) && (udp->uh_sum != 0)) {
 #if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
 			if (dosum)
 				udp->uh_sum = fr_cksum(fin->fin_qfm, ip,
-						       IPPROTO_UDP, udp);
+						       IPPROTO_UDP, udp,
+						       fin->fin_plen);
 #else
 			udp->uh_sum = fr_cksum(fin->fin_m, ip,
-					       IPPROTO_UDP, udp);
+					       IPPROTO_UDP, udp,
+					       fin->fin_plen);
 #endif
 		}
 		aps->aps_bytes += fin->fin_plen;
@@ -687,9 +690,9 @@ int inc;
 	tcp = (tcphdr_t *)fin->fin_dp;
 	out = fin->fin_out;
 	/*
-	 * ip_len has already been adjusted by 'inc'.
+	 * fin->fin_plen has already been adjusted by 'inc'.
 	 */
-	nlen = ip->ip_len;
+	nlen = fin->fin_plen;
 	nlen -= (IP_HL(ip) << 2) + (TCP_OFF(tcp) << 2);
 
 	inc2 = inc;
diff --git a/sys/contrib/ipfilter/netinet/ip_rcmd_pxy.c b/sys/contrib/ipfilter/netinet/ip_rcmd_pxy.c
index 1782064..c93207e 100644
--- a/sys/contrib/ipfilter/netinet/ip_rcmd_pxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_rcmd_pxy.c
@@ -3,7 +3,7 @@
  *
  * See the IPFILTER.LICENCE file for details on licencing.
  *
- * $Id: ip_rcmd_pxy.c,v 1.41.2.5 2005/10/02 04:20:07 darrenr Exp $
+ * $Id: ip_rcmd_pxy.c,v 1.41.2.6 2006/04/01 10:14:54 darrenr Exp $
  *
  * Simple RCMD transparent proxy for in-kernel use.  For use with the NAT
  * code.
@@ -202,7 +202,7 @@ nat_t *nat;
 				fi.fin_fi.fi_daddr = nat->nat_inip.s_addr;
 				ip->ip_dst = nat->nat_inip;
 			}
-			(void) fr_addstate(&fi, &nat2->nat_state, SI_W_DPORT);
+			(void) fr_addstate(&fi, NULL, SI_W_DPORT);
 			if (fi.fin_state != NULL)
 				fr_statederef(&fi, (ipstate_t **)&fi.fin_state);
 		}
diff --git a/sys/contrib/ipfilter/netinet/ip_scan.c b/sys/contrib/ipfilter/netinet/ip_scan.c
index 73977c7..13a5a60 100644
--- a/sys/contrib/ipfilter/netinet/ip_scan.c
+++ b/sys/contrib/ipfilter/netinet/ip_scan.c
@@ -58,7 +58,7 @@ struct file;
 
 #if !defined(lint)
 static const char sccsid[] = "@(#)ip_state.c	1.8 6/5/96 (C) 1993-2000 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ip_scan.c,v 2.40.2.4 2005/08/20 13:48:24 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_scan.c,v 2.40.2.6 2006/03/26 23:06:49 darrenr Exp $";
 #endif
 
 #ifdef	IPFILTER_SCAN	/* endif at bottom of file */
@@ -84,18 +84,23 @@ int ipsc_matchstr __P((sinfo_t *, char *, int));
 int ipsc_matchisc __P((ipscan_t *, ipstate_t *, int, int, int *));
 int ipsc_match __P((ipstate_t *));
 
+static int	ipsc_inited = 0;
 
 
 int ipsc_init()
 {
 	RWLOCK_INIT(&ipsc_rwlock, "ip scan rwlock");
+	ipsc_inited = 1;
 	return 0;
 }
 
 
 void fr_scanunload()
 {
-	RW_DESTROY(&ipsc_rwlock);
+	if (ipsc_inited == 1) {
+		RW_DESTROY(&ipsc_rwlock);
+		ipsc_inited = 0;
+	}
 }
 
 
@@ -431,6 +436,8 @@ ipstate_t *is;
 		}
 		if (k == 1)
 			isc = lm;
+		if (isc == NULL)
+			return 0;
 
 		/*
 		 * No matches or partial matches, so reset the respective
diff --git a/sys/contrib/ipfilter/netinet/ip_state.c b/sys/contrib/ipfilter/netinet/ip_state.c
index b0bf742..32aa805 100644
--- a/sys/contrib/ipfilter/netinet/ip_state.c
+++ b/sys/contrib/ipfilter/netinet/ip_state.c
@@ -107,7 +107,7 @@ struct file;
 
 #if !defined(lint)
 static const char sccsid[] = "@(#)ip_state.c	1.8 6/5/96 (C) 1993-2000 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ip_state.c,v 2.186.2.36 2005/12/04 22:25:36 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_state.c,v 2.186.2.41 2006/04/01 10:16:28 darrenr Exp $";
 #endif
 
 static	ipstate_t **ips_table = NULL;
@@ -668,6 +668,7 @@ caddr_t data;
 		fr->fr_ref = 0;
 		fr->fr_dsize = 0;
 		fr->fr_data = NULL;
+		fr->fr_type = FR_T_NONE;
 
 		fr_resolvedest(&fr->fr_tif, fr->fr_v);
 		fr_resolvedest(&fr->fr_dif, fr->fr_v);
@@ -801,6 +802,11 @@ int rev;
 /* Inserts it into the state table and appends to the bottom of the active  */
 /* list.  If the capacity of the table has reached the maximum allowed then */
 /* the call will fail and a flush is scheduled for the next timeout call.   */
+/*                                                                          */
+/* NOTE: The use of stsave to point to nat_state will result in memory      */
+/*       corruption.  It should only be used to point to objects that will  */
+/*       either outlive this (not expired) or will deref the ip_state_t     */
+/*       when they are deleted.                                             */
 /* ------------------------------------------------------------------------ */
 ipstate_t *fr_addstate(fin, stsave, flags)
 fr_info_t *fin;
@@ -823,28 +829,30 @@ u_int flags;
 	if ((fin->fin_flx & FI_OOW) && !(fin->fin_tcpf & TH_SYN))
 		return NULL;
 
-	fr = fin->fin_fr;
-	if ((fr->fr_statemax == 0) && (ips_num == fr_statemax)) {
-		ATOMIC_INCL(ips_stats.iss_max);
-		fr_state_doflush = 1;
-		return NULL;
-	}
-
 	/*
 	 * If a "keep state" rule has reached the maximum number of references
 	 * to it, then schedule an automatic flush in case we can clear out
-	 * some "dead old wood".
+	 * some "dead old wood".  Note that because the lock isn't held on
+	 * fr it is possible that we could overflow.  The cost of overflowing
+	 * is being ignored here as the number by which it can overflow is
+	 * a product of the number of simultaneous threads that could be
+	 * executing in here, so a limit of 100 won't result in 200, but could
+	 * result in 101 or 102.
 	 */
-	MUTEX_ENTER(&fr->fr_lock);
-	if ((fr != NULL) && (fr->fr_statemax != 0) &&
-	    (fr->fr_statecnt >= fr->fr_statemax)) {
-		MUTEX_EXIT(&fr->fr_lock);
-		ATOMIC_INCL(ips_stats.iss_maxref);
-		fr_state_doflush = 1;
-		return NULL;
+	fr = fin->fin_fr;
+	if (fr != NULL) {
+		if ((ips_num == fr_statemax) && (fr->fr_statemax == 0)) {
+			ATOMIC_INCL(ips_stats.iss_max);
+			fr_state_doflush = 1;
+			return NULL;
+		}
+		if ((fr->fr_statemax != 0) &&
+		    (fr->fr_statecnt >= fr->fr_statemax)) {
+			ATOMIC_INCL(ips_stats.iss_maxref);
+			fr_state_doflush = 1;
+			return NULL;
+		}
 	}
-	fr->fr_statecnt++;
-	MUTEX_EXIT(&fr->fr_lock);
 
 	pass = (fr == NULL) ? 0 : fr->fr_flags;
 
@@ -1046,16 +1054,16 @@ u_int flags;
 			break;
 	}
 	if (is != NULL)
-		goto cantaddstate;
+		return NULL;
 
 	if (ips_stats.iss_bucketlen[hv] >= fr_state_maxbucket) {
 		ATOMIC_INCL(ips_stats.iss_bucketfull);
-		goto cantaddstate;
+		return NULL;
 	}
 	KMALLOC(is, ipstate_t *);
 	if (is == NULL) {
 		ATOMIC_INCL(ips_stats.iss_nomem);
-		goto cantaddstate;
+		return NULL;
 	}
 	bcopy((char *)&ips, (char *)is, sizeof(*is));
 	/*
@@ -1140,6 +1148,7 @@ u_int flags;
 		is->is_optmsk[0] &= ~0x8;
 		is->is_optmsk[1] &= ~0x8;
 	}
+	is->is_me = stsave;
 	is->is_sec = fin->fin_secmsk;
 	is->is_secmsk = 0xffff;
 	is->is_auth = fin->fin_auth;
@@ -1154,7 +1163,6 @@ u_int flags;
 		is->is_pass &= ~(FR_LOGFIRST|FR_LOG);
 
 	READ_ENTER(&ipf_state);
-	is->is_me = stsave;
 
 	fr_stinsert(is, fin->fin_rev);
 
@@ -1188,14 +1196,6 @@ u_int flags;
 		(void) fr_newfrag(fin, pass ^ FR_KEEPSTATE);
 
 	return is;
-
-cantaddstate:
-	if (fr != NULL) {
-		MUTEX_ENTER(&fr->fr_lock);
-		fr->fr_statecnt--;
-		MUTEX_EXIT(&fr->fr_lock);
-	}
-	return NULL;
 }
 
 
@@ -1455,18 +1455,6 @@ int flags;
 		win = ntohs(tcp->th_win);
 	else
 		win = ntohs(tcp->th_win) << fdata->td_winscale;
-#if 0
-	/*
-	 * XXX - This is a kludge is here because IPFilter doesn't track SACK
-	 * options in TCP packets.  This is not a trivial to do if one is to
-	 * consider the performance impact of it.  So instead, if the
-	 * receiver has said SACK is ok, double the allowed window size.
-	 * This is disabled for testing of another workaround for a problem
-	 * with Microsoft Windows - see below.
-	 */
-	if ((tdata->td_winflags & TCP_SACK_PERMIT) != 0)
-		win *= 2;
-#endif
 
 	/*
 	 * A window of 0 produces undesirable behaviour from this function.
@@ -1553,6 +1541,39 @@ int flags;
 	    (fdata->td_winflags & TCP_SACK_PERMIT) &&
 	    (tdata->td_winflags & TCP_SACK_PERMIT)) {
 		inseq = 1;
+	/*
+	 * Sometimes a TCP RST will be generated with only the ACK field
+	 * set to non-zero.
+	 */
+	} else if ((seq == 0) && (tcpflags == (TH_RST|TH_ACK)) &&
+		   (ackskew >= -1) && (ackskew <= 1)) {
+		inseq = 1;
+	} else if (!(flags & IS_TCPFSM)) {
+		int i;
+
+		i = (fin->fin_rev << 1) + fin->fin_out;
+
+#if 0
+		if (is_pkts[i]0 == 0) {
+			/*
+			 * Picking up a connection in the middle, the "next"
+			 * packet seen from a direction that is new should be
+			 * accepted, even if it appears out of sequence.
+			 */
+			inseq = 1;
+		} else 
+#endif
+		if (!(fdata->td_winflags &
+			    (TCP_WSCALE_SEEN|TCP_WSCALE_FIRST))) {
+			/*
+			 * No TCPFSM and no window scaling, so make some
+			 * extra guesses.
+			 */
+			if ((seq == fdata->td_maxend) && (ackskew == 0))
+				inseq = 1;
+			else if (SEQ_GE(seq + maxwin, fdata->td_end - maxwin))
+				inseq = 1;
+		}
 	}
 
 	if (inseq) {
@@ -2339,7 +2360,8 @@ icmp6again:
 			if ((is->is_p != pr) || (is->is_v != v))
 				continue;
 			is = fr_matchsrcdst(fin, is, &src, &dst, NULL, FI_CMP);
-			if (is != NULL &&
+			if ((is != NULL) &&
+			    (ic->icmp_id == is->is_icmp.ici_id) &&
 			    fr_matchicmpqueryreply(v, &is->is_icmp,
 						   ic, fin->fin_rev)) {
 				if (fin->fin_rev)
@@ -2432,11 +2454,13 @@ retry_tcpudp:
 		break;
 	}
 
-	if ((is != NULL) && ((is->is_sti.tqe_flags & TQE_RULEBASED) != 0) &&
-	    (is->is_tqehead[fin->fin_rev] != NULL))
-		ifq = is->is_tqehead[fin->fin_rev];
-	if (ifq != NULL && ifqp != NULL)
-		*ifqp = ifq;
+	if (is != NULL) {
+		if (((is->is_sti.tqe_flags & TQE_RULEBASED) != 0) &&
+		    (is->is_tqehead[fin->fin_rev] != NULL))
+			ifq = is->is_tqehead[fin->fin_rev];
+		if (ifq != NULL && ifqp != NULL)
+			*ifqp = ifq;
+	}
 	return is;
 }
 
diff --git a/sys/contrib/ipfilter/netinet/ip_sync.c b/sys/contrib/ipfilter/netinet/ip_sync.c
index 768d1c5..b5b811b 100644
--- a/sys/contrib/ipfilter/netinet/ip_sync.c
+++ b/sys/contrib/ipfilter/netinet/ip_sync.c
@@ -96,7 +96,7 @@ struct file;
 /* END OF INCLUDES */
 
 #if !defined(lint)
-static const char rcsid[] = "@(#)$Id: ip_sync.c,v 2.40.2.5 2005/09/04 12:51:12 darrenr Exp $";
+static const char rcsid[] = "@(#)$Id: ip_sync.c,v 2.40.2.7 2006/03/19 14:59:39 darrenr Exp $";
 #endif
 
 #define	SYNC_STATETABSZ	256
@@ -702,7 +702,6 @@ int ipfsync_nat(sp, data)
 synchdr_t *sp;
 void *data;
 {
-	synclogent_t sle;
 	syncupdent_t su;
 	nat_t *n, *nat;
 	synclist_t *sl;
@@ -714,8 +713,6 @@ void *data;
 	switch (sp->sm_cmd)
 	{
 	case SMC_CREATE :
-		bcopy(data, &sle, sizeof(sle));
-
 		KMALLOC(n, nat_t *);
 		if (n == NULL) {
 			err = ENOMEM;
@@ -729,9 +726,7 @@ void *data;
 			break;
 		}
 
-		WRITE_ENTER(&ipf_nat);
-
-		nat = &sle.sle_un.sleu_ipn;
+		nat = (nat_t *)data;
 		bzero((char *)n, offsetof(nat_t, nat_age));
 		bcopy((char *)&nat->nat_age, (char *)&n->nat_age,
 		      sizeof(*n) - offsetof(nat_t, nat_age));
@@ -741,6 +736,8 @@ void *data;
 		sl->sl_idx = -1;
 		sl->sl_ipn = n;
 		sl->sl_num = ntohl(sp->sm_num);
+
+		WRITE_ENTER(&ipf_nat);
 		sl->sl_pnext = syncstatetab + hv;
 		sl->sl_next = syncstatetab[hv];
 		if (syncstatetab[hv] != NULL)
@@ -1005,4 +1002,16 @@ int mode;
 {
 	return EINVAL;
 }
+
+
+int ipfsync_canread()
+{
+	return !((sl_tail == sl_idx) && (su_tail == su_idx));
+}
+
+
+int ipfsync_canwrite()
+{
+	return 1;
+}
 #endif /* IPFILTER_SYNC */
diff --git a/sys/contrib/ipfilter/netinet/ip_sync.h b/sys/contrib/ipfilter/netinet/ip_sync.h
index 8a62192..76862f7 100644
--- a/sys/contrib/ipfilter/netinet/ip_sync.h
+++ b/sys/contrib/ipfilter/netinet/ip_sync.h
@@ -4,7 +4,7 @@
  * See the IPFILTER.LICENCE file for details on licencing.
  *
  * @(#)ip_fil.h	1.35 6/5/96
- * $Id: ip_sync.h,v 2.11.2.2 2004/11/04 19:29:07 darrenr Exp $
+ * $Id: ip_sync.h,v 2.11.2.3 2006/03/19 14:59:39 darrenr Exp $
  */
 
 #ifndef __IP_SYNC_H__
@@ -111,5 +111,7 @@ extern	int		ipfsync_nat __P((synchdr_t *sp, void *data));
 extern	int		ipfsync_state __P((synchdr_t *sp, void *data));
 extern	int		ipfsync_read __P((struct uio *uio));
 extern	int		ipfsync_write __P((struct uio *uio));
+extern	int		ipfsync_canread __P((void));
+extern	int		ipfsync_canwrite __P((void));
 
 #endif /* IP_SYNC */
diff --git a/sys/contrib/ipfilter/netinet/ipl.h b/sys/contrib/ipfilter/netinet/ipl.h
index ee9a955..28b9e0c 100644
--- a/sys/contrib/ipfilter/netinet/ipl.h
+++ b/sys/contrib/ipfilter/netinet/ipl.h
@@ -4,14 +4,14 @@
  * See the IPFILTER.LICENCE file for details on licencing.
  *
  * @(#)ipl.h	1.21 6/5/96
- * $Id: ipl.h,v 2.52.2.11 2005/12/04 22:37:24 darrenr Exp $
+ * $Id: ipl.h,v 2.52.2.14 2006/04/01 20:09:42 darrenr Exp $
  */
 
 #ifndef	__IPL_H__
 #define	__IPL_H__
 
-#define	IPL_VERSION	"IP Filter: v4.1.10"
+#define	IPL_VERSION	"IP Filter: v4.1.13"
 
-#define	IPFILTER_VERSION	4011000
+#define	IPFILTER_VERSION	4011300
 
 #endif
diff --git a/sys/contrib/ipfilter/netinet/mlfk_ipl.c b/sys/contrib/ipfilter/netinet/mlfk_ipl.c
index 26a51aa..e4c5ccb 100644
--- a/sys/contrib/ipfilter/netinet/mlfk_ipl.c
+++ b/sys/contrib/ipfilter/netinet/mlfk_ipl.c
@@ -12,6 +12,10 @@
 #include <sys/conf.h>
 #include <sys/socket.h>
 #include <sys/sysctl.h>
+#include <sys/select.h>
+#if __FreeBSD_version >= 500000
+# include <sys/selinfo.h>
+#endif                  
 #include <net/if.h>
 #include <netinet/in_systm.h>
 #include <netinet/in.h>
@@ -24,6 +28,9 @@
 #include <netinet/ip_nat.h>
 #include <netinet/ip_auth.h>
 #include <netinet/ip_frag.h>
+#include <netinet/ip_sync.h>
+
+extern	struct	selinfo	ipfselwait[IPL_LOGSIZE];
 
 #if __FreeBSD_version >= 502116
 static struct cdev *ipf_devs[IPL_LOGSIZE];
@@ -92,6 +99,10 @@ SYSCTL_IPF(_net_inet_ipf, OID_AUTO, fr_minttl, CTLFLAG_RW, &fr_minttl, 0, "");
 
 #define CDEV_MAJOR 79
 #if __FreeBSD_version >= 501000
+# include <sys/poll.h>
+# include <sys/select.h>
+static int iplpoll(struct cdev *dev, int events, struct thread *td);
+
 static struct cdevsw ipl_cdevsw = {
 # if __FreeBSD_version >= 502103
 	.d_version =	D_VERSION,
@@ -103,6 +114,7 @@ static struct cdevsw ipl_cdevsw = {
 	.d_write =	iplwrite,
 	.d_ioctl =	iplioctl,
 	.d_name =	"ipl",
+	.d_poll =	iplpoll,
 # if __FreeBSD_version < 600000
 	.d_maj =	CDEV_MAJOR,
 # endif
@@ -114,7 +126,7 @@ static struct cdevsw ipl_cdevsw = {
 	/* read */	iplread,
 	/* write */	iplwrite,
 	/* ioctl */	iplioctl,
-	/* poll */	nopoll,
+	/* poll */	iplpoll,
 	/* mmap */	nommap,
 	/* strategy */	nostrategy,
 	/* name */	"ipl",
@@ -270,3 +282,51 @@ sysctl_ipf_int ( SYSCTL_HANDLER_ARGS )
 	return (error);
 }
 #endif
+
+
+#if __FreeBSD_version >= 501000
+static int
+iplpoll(struct cdev *dev, int events, struct thread *td)
+{
+	u_int xmin = GET_MINOR(dev);
+	int revents;
+
+	if (xmin < 0 || xmin > IPL_LOGMAX)
+		return 0;
+
+	revents = 0;
+
+	switch (xmin) 
+	{
+	case IPL_LOGIPF :
+	case IPL_LOGNAT :
+	case IPL_LOGSTATE :
+#ifdef IPFILTER_LOG
+		if ((events & (POLLIN | POLLRDNORM)) && ipflog_canread(xmin))
+			revents |= events & (POLLIN | POLLRDNORM);
+#endif  
+		break;
+	case IPL_LOGAUTH :
+		if ((events & (POLLIN | POLLRDNORM)) && fr_auth_waiting())
+			revents |= events & (POLLIN | POLLRDNORM);
+		break; 
+	case IPL_LOGSYNC :
+#ifdef IPFILTER_SYNC
+		if ((events & (POLLIN | POLLRDNORM)) && ipfsync_canread())
+			revents |= events & (POLLIN | POLLRDNORM);
+		if ((events & (POLLOUT | POLLWRNORM)) && ipfsync_canwrite())
+			revents |= events & (POLLOUT | POLLWRNORM);
+#endif
+		break;
+	case IPL_LOGSCAN :
+	case IPL_LOGLOOKUP :
+	default :
+		break;
+	}
+
+	if ((revents == 0) && ((events & (POLLIN|POLLRDNORM)) != 0))
+		selrecord(td, &ipfselwait[xmin]);
+
+	return revents;
+}
+#endif