Fix include directives that were missing the netinet include directory, where

the ipl.h file is found.  Also add back in ip_fil.c, which somehow went missing
in action.

5 files changed, 971 insertions, 4 deletions

diff --git a/contrib/ipfilter/bpf_filter.c b/contrib/ipfilter/bpf_filter.c
index 4c4c341..f5cc588 100644
--- a/contrib/ipfilter/bpf_filter.c
+++ b/contrib/ipfilter/bpf_filter.c
@@ -53,7 +53,7 @@ static const char rcsid[] =
 #include <netinet/in.h>
 #include <net/if.h>
 
-#include "ip_compat.h"
+#include "netinet/ip_compat.h"
 #include "bpf-ipf.h"
 
 
diff --git a/contrib/ipfilter/ip_fil.c b/contrib/ipfilter/ip_fil.c
new file mode 100644
index 0000000..a4ec02c
--- /dev/null
+++ b/contrib/ipfilter/ip_fil.c
@@ -0,0 +1,967 @@
+/*	$FreeBSD$	*/
+
+/*
+ * Copyright (C) 1993-2001 by Darren Reed.
+ *
+ * See the IPFILTER.LICENCE file for details on licencing.
+ */
+#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 2.133.2.9 2005/01/08 14:22:18 darrenr Exp $";
+#endif
+
+#ifndef	SOLARIS
+#define	SOLARIS	(defined(sun) && (defined(__svr4__) || defined(__SVR4)))
+#endif
+
+#include <sys/param.h>
+#if defined(__FreeBSD__) && !defined(__FreeBSD_version)
+# if defined(IPFILTER_LKM)
+#  ifndef __FreeBSD_cc_version
+#   include <osreldate.h>
+#  else
+#   if __FreeBSD_cc_version < 430000
+#    include <osreldate.h>
+#   endif
+#  endif
+# endif
+#endif
+#include <sys/errno.h>
+#if defined(__hpux) && (HPUXREV >= 1111) && !defined(_KERNEL)
+# include <sys/kern_svcs.h>
+#endif
+#include <sys/types.h>
+#define _KERNEL
+#define KERNEL
+#ifdef __OpenBSD__
+struct file;
+#endif
+#include <sys/uio.h>
+#undef _KERNEL
+#undef KERNEL
+#include <sys/file.h>
+#include <sys/ioctl.h>
+#ifdef __sgi
+# include <sys/ptimers.h>
+#endif
+#include <sys/time.h>
+#if !SOLARIS
+# if (NetBSD > 199609) || (OpenBSD > 199603) || (__FreeBSD_version >= 300000)
+#  include <sys/dirent.h>
+# else
+#  include <sys/dir.h>
+# endif
+#else
+# include <sys/filio.h>
+#endif
+#ifndef linux
+# include <sys/protosw.h>
+#endif
+#include <sys/socket.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <arpa/inet.h>
+
+#ifdef __hpux
+# define _NET_ROUTE_INCLUDED
+#endif
+#include <net/if.h>
+#ifdef sun
+# include <net/af.h>
+#endif
+#if __FreeBSD_version >= 300000
+# include <net/if_var.h>
+#endif
+#ifdef __sgi
+#include <sys/debug.h>
+# ifdef IFF_DRVRLOCK /* IRIX6 */
+#include <sys/hashing.h>
+# endif
+#endif
+#if defined(__FreeBSD__)
+# include "radix_ipf.h"
+#endif
+#include <net/route.h>
+#include <netinet/in.h>
+#if !(defined(__sgi) && !defined(IFF_DRVRLOCK)) /* IRIX < 6 */ && \
+    !defined(__hpux) && !defined(linux)
+# include <netinet/in_var.h>
+#endif
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#if !defined(linux)
+# include <netinet/ip_var.h>
+#endif
+#include <netinet/tcp.h>
+#if defined(__osf__)
+# include <netinet/tcp_timer.h>
+#endif
+#if defined(__osf__) || defined(__hpux) || defined(__sgi)
+# include "radix_ipf_local.h"
+# define _RADIX_H_
+#endif
+#include <netinet/udp.h>
+#include <netinet/tcpip.h>
+#include <netinet/ip_icmp.h>
+#include <unistd.h>
+#include <syslog.h>
+#ifdef __hpux
+# undef _NET_ROUTE_INCLUDED
+#endif
+#include "netinet/ip_compat.h"
+#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"
+#ifdef	IPFILTER_SYNC
+#include "netinet/ip_sync.h"
+#endif
+#ifdef	IPFILTER_SCAN
+#include "netinet/ip_scan.h"
+#endif
+#include "netinet/ip_pool.h"
+#ifdef IPFILTER_COMPILED
+# include "netinet/ip_rules.h"
+#endif
+#if defined(__FreeBSD_version) && (__FreeBSD_version >= 300000)
+# include <sys/malloc.h>
+#endif
+#ifdef __hpux
+struct rtentry;
+#endif
+#include "md5.h"
+
+
+#if !defined(__osf__)
+extern	struct	protosw	inetsw[];
+#endif
+
+#include "ipt.h"
+static	struct	ifnet **ifneta = NULL;
+static	int	nifs = 0;
+
+static	int	frzerostats __P((caddr_t));
+static	void	fr_setifpaddr __P((struct ifnet *, char *));
+void	init_ifp __P((void));
+#if defined(__sgi) && (IRIX < 60500)
+static int 	no_output __P((struct ifnet *, struct mbuf *,
+			       struct sockaddr *));
+static int	write_output __P((struct ifnet *, struct mbuf *,
+				  struct sockaddr *));
+#else
+# if TRU64 >= 1885
+static int 	no_output __P((struct ifnet *, struct mbuf *,
+			       struct sockaddr *, struct rtentry *, char *));
+static int	write_output __P((struct ifnet *, struct mbuf *,
+				  struct sockaddr *, struct rtentry *, char *));
+# 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 iplattach()
+{
+	fr_running = 1;
+	return 0;
+}
+
+
+int ipldetach()
+{
+	fr_running = -1;
+	return 0;
+}
+
+
+static	int	frzerostats(data)
+caddr_t	data;
+{
+	friostat_t fio;
+	int error;
+
+	fr_getstat(&fio);
+	error = copyoutptr(&fio, data, sizeof(fio));
+	if (error)
+		return EFAULT;
+
+	bzero((char *)frstats, sizeof(*frstats) * 2);
+
+	return 0;
+}
+
+
+/*
+ * Filter ioctl interface.
+ */
+int iplioctl(dev, cmd, data, mode)
+int dev;
+ioctlcmd_t cmd;
+caddr_t data;
+int mode;
+{
+	int error = 0, unit = 0, tmp;
+	friostat_t fio;
+
+	unit = dev;
+
+	SPL_NET(s);
+
+	if (unit == IPL_LOGNAT) {
+		if (fr_running > 0)
+			error = fr_nat_ioctl(data, cmd, mode);
+		else
+			error = EIO;
+		SPL_X(s);
+		return error;
+	}
+	if (unit == IPL_LOGSTATE) {
+		if (fr_running > 0)
+			error = fr_state_ioctl(data, cmd, mode);
+		else
+			error = EIO;
+		SPL_X(s);
+		return error;
+	}
+	if (unit == IPL_LOGAUTH) {
+		if (fr_running > 0) {
+			if ((cmd == (ioctlcmd_t)SIOCADAFR) ||
+			    (cmd == (ioctlcmd_t)SIOCRMAFR)) {
+				if (!(mode & FWRITE)) {
+					error = EPERM;
+				} else {
+					error = frrequest(unit, cmd, data,
+							  fr_active, 1);
+				}
+			} else {
+				error = fr_auth_ioctl(data, mode, cmd);
+			}
+		} else
+			error = EIO;
+		SPL_X(s);
+		return error;
+	}
+	if (unit == IPL_LOGSYNC) {
+#ifdef	IPFILTER_SYNC
+		if (fr_running > 0)
+			error = fr_sync_ioctl(data, cmd, mode);
+		else
+#endif
+			error = EIO;
+		SPL_X(s);
+		return error;
+	}
+	if (unit == IPL_LOGSCAN) {
+#ifdef	IPFILTER_SCAN
+		if (fr_running > 0)
+			error = fr_scan_ioctl(data, cmd, mode);
+		else
+#endif
+			error = EIO;
+		SPL_X(s);
+		return error;
+	}
+	if (unit == IPL_LOGLOOKUP) {
+		if (fr_running > 0)
+			error = ip_lookup_ioctl(data, cmd, mode);
+		else
+			error = EIO;
+		SPL_X(s);
+		return error;
+	}
+
+	switch (cmd)
+	{
+	case FIONREAD :
+#ifdef IPFILTER_LOG
+		error = COPYOUT(&iplused[IPL_LOGIPF], (caddr_t)data,
+			       sizeof(iplused[IPL_LOGIPF]));
+#endif
+		break;
+	case SIOCFRENB :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else {
+			error = COPYIN(data, &tmp, sizeof(tmp));
+			if (error)
+				break;
+			if (tmp)
+				error = iplattach();
+			else
+				error = ipldetach();
+		}
+		break;
+	case SIOCIPFSET :
+		if (!(mode & FWRITE)) {
+			error = EPERM;
+			break;
+		}
+	case SIOCIPFGETNEXT :
+	case SIOCIPFGET :
+		error = fr_ipftune(cmd, (void *)data);
+		break;
+	case SIOCSETFF :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else
+			error = COPYIN(data, &fr_flags, sizeof(fr_flags));
+		break;
+	case SIOCGETFF :
+		error = COPYOUT(&fr_flags, data, sizeof(fr_flags));
+		break;
+	case SIOCFUNCL :
+		error = fr_resolvefunc(data);
+		break;
+	case SIOCINAFR :
+	case SIOCRMAFR :
+	case SIOCADAFR :
+	case SIOCZRLST :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else
+			error = frrequest(unit, cmd, data, fr_active, 1);
+		break;
+	case SIOCINIFR :
+	case SIOCRMIFR :
+	case SIOCADIFR :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else
+			error = frrequest(unit, cmd, data, 1 - fr_active, 1);
+		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 :
+		fr_getstat(&fio);
+		error = fr_outobj(data, &fio, IPFOBJ_IPFSTAT);
+		break;
+	case	SIOCFRZST :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else
+			error = frzerostats(data);
+		break;
+	case	SIOCIPFFL :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else {
+			error = COPYIN(data, &tmp, sizeof(tmp));
+			if (!error) {
+				tmp = frflush(unit, 4, tmp);
+				error = COPYOUT(&tmp, data, sizeof(tmp));
+			}
+		}
+		break;
+#ifdef	USE_INET6
+	case	SIOCIPFL6 :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else {
+			error = COPYIN(data, &tmp, sizeof(tmp));
+			if (!error) {
+				tmp = frflush(unit, 6, tmp);
+				error = COPYOUT(&tmp, data, sizeof(tmp));
+			}
+		}
+		break;
+#endif
+	case SIOCSTLCK :
+		error = COPYIN(data, &tmp, sizeof(tmp));
+		if (error == 0) {
+			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 = fr_outobj(data, fr_fragstats(), IPFOBJ_FRAGSTAT);
+		break;
+	case SIOCFRSYN :
+		if (!(mode & FWRITE))
+			error = EPERM;
+		else {
+			frsync(NULL);
+		}
+		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);
+	fr_natsync(ifp);
+}
+
+
+#if defined(__sgi) && (IRIX < 60500)
+static int no_output(ifp, m, s)
+#else
+# if TRU64 >= 1885
+static int no_output (ifp, m, s, rt, cp)
+char *cp;
+# else
+static int no_output(ifp, m, s, rt)
+# endif
+struct rtentry *rt;
+#endif
+struct ifnet *ifp;
+struct mbuf *m;
+struct sockaddr *s;
+{
+	return 0;
+}
+
+
+#if defined(__sgi) && (IRIX < 60500)
+static int write_output(ifp, m, s)
+#else
+# if TRU64 >= 1885
+static int write_output (ifp, m, s, rt, cp)
+char *cp;
+# else
+static int write_output(ifp, m, s, rt)
+# endif
+struct rtentry *rt;
+#endif
+struct ifnet *ifp;
+struct mbuf *m;
+struct sockaddr *s;
+{
+	char fname[32];
+	mb_t *mb;
+	ip_t *ip;
+	int fd;
+
+	mb = (mb_t *)m;
+	ip = MTOD(mb, ip_t *);
+
+#if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
+    (defined(OpenBSD) && (OpenBSD >= 199603)) || defined(linux) || \
+    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
+	sprintf(fname, "/tmp/%s", ifp->if_xname);
+#else
+	sprintf(fname, "/tmp/%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;
+}
+
+
+static void fr_setifpaddr(ifp, addr)
+struct ifnet *ifp;
+char *addr;
+{
+#ifdef __sgi
+	struct in_ifaddr *ifa;
+#else
+	struct ifaddr *ifa;
+#endif
+
+#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)
+	if (ifp->if_addrlist.tqh_first != NULL)
+#else
+# ifdef __sgi
+	if (ifp->in_ifaddr != NULL)
+# else
+	if (ifp->if_addrlist != NULL)
+# endif
+#endif
+		return;
+
+	ifa = (struct ifaddr *)malloc(sizeof(*ifa));
+#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)
+	ifp->if_addrlist.tqh_first = ifa;
+#else
+# ifdef __sgi
+	ifp->in_ifaddr = ifa;
+# else
+	ifp->if_addrlist = ifa;
+# endif
+#endif
+
+	if (ifa != NULL) {
+		struct sockaddr_in *sin;
+
+#ifdef __sgi
+		sin = (struct sockaddr_in *)&ifa->ia_addr;
+#else
+		sin = (struct sockaddr_in *)&ifa->ifa_addr;
+#endif
+		sin->sin_addr.s_addr = inet_addr(addr);
+		if (sin->sin_addr.s_addr == 0)
+			abort();
+	}
+}
+
+struct ifnet *get_unit(name, v)
+char *name;
+int v;
+{
+	struct ifnet *ifp, **ifpp, **old_ifneta;
+	char *addr;
+#if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
+    (defined(OpenBSD) && (OpenBSD >= 199603)) || defined(linux) || \
+    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
+
+	if (name == NULL)
+		name = "anon0";
+
+	addr = strchr(name, '=');
+	if (addr != NULL)
+		*addr++ = '\0';
+
+	for (ifpp = ifneta; ifpp && (ifp = *ifpp); ifpp++) {
+		if (!strcmp(name, ifp->if_xname)) {
+			if (addr != NULL)
+				fr_setifpaddr(ifp, addr);
+			return ifp;
+		}
+	}
+#else
+	char *s, ifname[LIFNAMSIZ+1];
+
+	if (name == NULL)
+		name = "anon0";
+
+	addr = strchr(name, '=');
+	if (addr != NULL)
+		*addr++ = '\0';
+
+	for (ifpp = ifneta; ifpp && (ifp = *ifpp); ifpp++) {
+		COPYIFNAME(ifp, ifname);
+		if (!strcmp(name, ifname)) {
+			if (addr != NULL)
+				fr_setifpaddr(ifp, addr);
+			return ifp;
+		}
+	}
+#endif
+
+	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(ifp));
+		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)) || defined(linux) || \
+    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
+	(void) strncpy(ifp->if_xname, name, sizeof(ifp->if_xname));
+#else
+	for (s = name; *s && !ISDIGIT(*s); s++)
+		;
+	if (*s && ISDIGIT(*s)) {
+		ifp->if_unit = atoi(s);
+		ifp->if_name = (char *)malloc(s - name + 1);
+		(void) strncpy(ifp->if_name, name, s - name);
+		ifp->if_name[s - name] = '\0';
+	} else {
+		ifp->if_name = strdup(name);
+		ifp->if_unit = -1;
+	}
+#endif
+	ifp->if_output = no_output;
+
+	if (addr != NULL) {
+		fr_setifpaddr(ifp, addr);
+	}
+
+	return ifp;
+}
+
+
+char *get_ifname(ifp)
+struct ifnet *ifp;
+{
+	static char ifname[LIFNAMSIZ];
+
+#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(linux) || \
+    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
+	sprintf(ifname, "%s", ifp->if_xname);
+#else
+	sprintf(ifname, "%s%d", ifp->if_name, ifp->if_unit);
+#endif
+	return ifname;
+}
+
+
+
+void init_ifp()
+{
+	struct ifnet *ifp, **ifpp;
+	char fname[32];
+	int fd;
+
+#if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199606)) || \
+    (defined(OpenBSD) && (OpenBSD >= 199603)) || defined(linux) || \
+    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
+	for (ifpp = ifneta; ifpp && (ifp = *ifpp); ifpp++) {
+		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 (ifpp = ifneta; ifpp && (ifp = *ifpp); ifpp++) {
+		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 fr_fastroute(m, mpp, fin, fdp)
+mb_t *m, **mpp;
+fr_info_t *fin;
+frdest_t *fdp;
+{
+	struct ifnet *ifp = fdp->fd_ifp;
+	ip_t *ip = fin->fin_ip;
+
+	if (!ifp)
+		return 0;	/* no routing table out here */
+
+	ip->ip_len = htons((u_short)ip->ip_len);
+	ip->ip_off = htons((u_short)(ip->ip_off | IP_MF));
+	ip->ip_sum = 0;
+#if defined(__sgi) && (IRIX < 60500)
+	(*ifp->if_output)(ifp, (void *)ip, NULL);
+# if TRU64 >= 1885
+	(*ifp->if_output)(ifp, (void *)m, NULL, 0, 0);
+# else
+	(*ifp->if_output)(ifp, (void *)m, NULL, 0);
+# endif
+#endif
+	return 0;
+}
+
+
+int fr_send_reset(fin)
+fr_info_t *fin;
+{
+	verbose("- TCP RST sent\n");
+	return 0;
+}
+
+
+int fr_send_icmp_err(type, fin, dst)
+int type;
+fr_info_t *fin;
+int dst;
+{
+	verbose("- ICMP unreachable sent\n");
+	return 0;
+}
+
+
+void frsync(ifp)
+void *ifp;
+{
+	return;
+}
+
+
+void m_freem(m)
+mb_t *m;
+{
+	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;
+}
+
+
+u_32_t fr_newisn(fin)
+fr_info_t *fin;
+{
+	static int iss_seq_off = 0;
+	u_char hash[16];
+	u_32_t newiss;
+	MD5_CTX ctx;
+
+	/*
+	 * Compute the base value of the ISS.  It is a hash
+	 * of (saddr, sport, daddr, dport, secret).
+	 */
+	MD5Init(&ctx);
+
+	MD5Update(&ctx, (u_char *) &fin->fin_fi.fi_src,
+		  sizeof(fin->fin_fi.fi_src));
+	MD5Update(&ctx, (u_char *) &fin->fin_fi.fi_dst,
+		  sizeof(fin->fin_fi.fi_dst));
+	MD5Update(&ctx, (u_char *) &fin->fin_dat, sizeof(fin->fin_dat));
+
+	/* MD5Update(&ctx, ipf_iss_secret, sizeof(ipf_iss_secret)); */
+
+	MD5Final(hash, &ctx);
+
+	memcpy(&newiss, hash, sizeof(newiss));
+
+	/*
+	 * Now increment our "timer", and add it in to
+	 * the computed value.
+	 *
+	 * XXX Use `addin'?
+	 * XXX TCP_ISSINCR too large to use?
+	 */
+	iss_seq_off += 0x00010000;
+	newiss += iss_seq_off;
+	return newiss;
+}
+
+
+/* ------------------------------------------------------------------------ */
+/* Function:    fr_nextipid                                                 */
+/* Returns:     int - 0 == success, -1 == error (packet should be droppped) */
+/* Parameters:  fin(I) - pointer to packet information                      */
+/*                                                                          */
+/* Returns the next IPv4 ID to use for this packet.                         */
+/* ------------------------------------------------------------------------ */
+INLINE u_short fr_nextipid(fin)
+fr_info_t *fin;
+{
+	static u_short ipid = 0;
+	u_short id;
+
+	MUTEX_ENTER(&ipf_rw);
+	id = ipid++;
+	MUTEX_EXIT(&ipf_rw);
+
+	return id;
+}
+
+
+INLINE void fr_checkv4sum(fin)
+fr_info_t *fin;
+{
+	if (fr_checkl4sum(fin) == -1)
+		fin->fin_flx |= FI_BAD;
+}
+
+
+#ifdef	USE_INET6
+INLINE void fr_checkv6sum(fin)
+fr_info_t *fin;
+{
+	if (fr_checkl4sum(fin) == -1)
+		fin->fin_flx |= FI_BAD;
+}
+#endif
+
+
+/*
+ * See above for description, except that all addressing is in user space.
+ */
+int copyoutptr(src, dst, size)
+void *src, *dst;
+size_t size;
+{
+	caddr_t ca;
+
+	bcopy(dst, (char *)&ca, sizeof(ca));
+	bcopy(src, ca, size);
+	return 0;
+}
+
+
+/*
+ * See above for description, except that all addressing is in user space.
+ */
+int copyinptr(src, dst, size)
+void *src, *dst;
+size_t size;
+{
+	caddr_t ca;
+
+	bcopy(src, (char *)&ca, sizeof(ca));
+	bcopy(ca, dst, size);
+	return 0;
+}
+
+
+/*
+ * return the first IP Address associated with an interface
+ */
+int fr_ifpaddr(v, atype, ifptr, inp, inpmask)
+int v, atype;
+void *ifptr;
+struct in_addr *inp, *inpmask;
+{
+	struct ifnet *ifp = ifptr;
+#ifdef __sgi
+	struct in_ifaddr *ifa;
+#else
+	struct ifaddr *ifa;
+#endif
+
+#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)
+	ifa = ifp->if_addrlist.tqh_first;
+#else
+# ifdef __sgi
+	ifa = (struct in_ifaddr *)ifp->in_ifaddr;
+# else
+	ifa = ifp->if_addrlist;
+# endif
+#endif
+	if (ifa != NULL) {
+		struct sockaddr_in *sin, mask;
+
+		mask.sin_addr.s_addr = 0xffffffff;
+
+#ifdef __sgi
+		sin = (struct sockaddr_in *)&ifa->ia_addr;
+#else
+		sin = (struct sockaddr_in *)&ifa->ifa_addr;
+#endif
+
+		return fr_ifpfillv4addr(atype, sin, &mask, inp, inpmask);
+	}
+	return 0;
+}
diff --git a/contrib/ipfilter/samples/relay.c b/contrib/ipfilter/samples/relay.c
index 220b942..f775cbd 100644
--- a/contrib/ipfilter/samples/relay.c
+++ b/contrib/ipfilter/samples/relay.c
@@ -21,7 +21,7 @@
 #include "ip_compat.h"
 #include "ip_fil.h"
 #include "ip_nat.h"
-#include "ipl.h"
+#include "netinet/ipl.h"
 
 #define	RELAY_BUFSZ	8192
 
diff --git a/contrib/ipfilter/tools/ipfs.c b/contrib/ipfilter/tools/ipfs.c
index 041e911..a587a42 100644
--- a/contrib/ipfilter/tools/ipfs.c
+++ b/contrib/ipfilter/tools/ipfs.c
@@ -41,7 +41,7 @@
 #include <arpa/nameser.h>
 #include <resolv.h>
 #include "ipf.h"
-#include "ipl.h"
+#include "netinet/ipl.h"
 
 #if !defined(lint)
 static const char rcsid[] = "@(#)Id: ipfs.c,v 1.12 2003/12/01 01:56:53 darrenr Exp";
diff --git a/contrib/ipfilter/tools/ipnat.c b/contrib/ipfilter/tools/ipnat.c
index 12fca51..7b00281 100644
--- a/contrib/ipfilter/tools/ipnat.c
+++ b/contrib/ipfilter/tools/ipnat.c
@@ -51,7 +51,7 @@
 # include <nlist.h>
 #endif
 #include "ipf.h"
-#include "ipl.h"
+#include "netinet/ipl.h"
 #include "kmem.h"
 
 #ifdef	__hpux