1 files changed, 0 insertions, 451 deletions

diff --git a/contrib/ipfilter/ip_proxy.c b/contrib/ipfilter/ip_proxy.c
deleted file mode 100644
index e1e55f11acde..000000000000
--- a/contrib/ipfilter/ip_proxy.c
+++ /dev/null
@@ -1,451 +0,0 @@
-/*
- * Copyright (C) 1997-2000 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.
- */
-#if !defined(lint)
-static const char rcsid[] = "@(#)$Id: ip_proxy.c,v 2.9.2.1 2000/05/06 12:30:50 darrenr Exp $";
-#endif
-
-#if defined(__FreeBSD__) && defined(KERNEL) && !defined(_KERNEL)
-# define	_KERNEL
-#endif
-
-#include <sys/errno.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/file.h>
-#if !defined(__FreeBSD_version)  
-# include <sys/ioctl.h>      
-#endif
-#include <sys/fcntl.h>
-#include <sys/uio.h>
-#if !defined(_KERNEL) && !defined(KERNEL)
-# include <stdio.h>
-# include <string.h>
-# include <stdlib.h>
-#endif
-#ifndef	linux
-# include <sys/protosw.h>
-#endif
-#include <sys/socket.h>
-#if defined(_KERNEL)
-# if !defined(linux)
-#  include <sys/systm.h>
-# else
-#  include <linux/string.h>
-# endif
-#endif
-#if !defined(__SVR4) && !defined(__svr4__)
-# ifndef linux
-#  include <sys/mbuf.h>
-# endif
-#else
-# include <sys/byteorder.h>
-# ifdef _KERNEL
-#  include <sys/dditypes.h>
-# endif
-# include <sys/stream.h>
-# include <sys/kmem.h>
-#endif
-#if __FreeBSD__ > 2
-# include <sys/queue.h>
-#endif
-#include <net/if.h>
-#ifdef sun
-# include <net/af.h>
-#endif
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#ifndef linux
-# include <netinet/ip_var.h>
-#endif
-#include <netinet/tcp.h>
-#include <netinet/udp.h>
-#include <netinet/ip_icmp.h>
-#include "netinet/ip_compat.h"
-#include <netinet/tcpip.h>
-#include "netinet/ip_fil.h"
-#include "netinet/ip_proxy.h"
-#include "netinet/ip_nat.h"
-#include "netinet/ip_state.h"
-#if (__FreeBSD_version >= 300000)
-# include <sys/malloc.h>
-#endif
-
-
-#ifndef MIN
-#define MIN(a,b)        (((a)<(b))?(a):(b))
-#endif
-
-static ap_session_t *appr_new_session __P((aproxy_t *, ip_t *,
-					   fr_info_t *, nat_t *));
-static int appr_fixseqack __P((fr_info_t *, ip_t *, ap_session_t *, int ));
-
-
-#define	AP_SESS_SIZE	53
-
-#if defined(_KERNEL) && !defined(linux)
-#include "netinet/ip_ftp_pxy.c"
-#include "netinet/ip_rcmd_pxy.c"
-#include "netinet/ip_raudio_pxy.c"
-#endif
-
-ap_session_t	*ap_sess_tab[AP_SESS_SIZE];
-ap_session_t	*ap_sess_list = NULL;
-aproxy_t	*ap_proxylist = NULL;
-aproxy_t	ap_proxies[] = {
-#ifdef	IPF_FTP_PROXY
-	{ NULL, "ftp", (char)IPPROTO_TCP, 0, 0, ippr_ftp_init, NULL,
-	  ippr_ftp_new, ippr_ftp_in, ippr_ftp_out },
-#endif
-#ifdef	IPF_RCMD_PROXY
-	{ NULL, "rcmd", (char)IPPROTO_TCP, 0, 0, ippr_rcmd_init, NULL,
-	  ippr_rcmd_new, NULL, ippr_rcmd_out },
-#endif
-#ifdef	IPF_RAUDIO_PROXY
-	{ NULL, "raudio", (char)IPPROTO_TCP, 0, 0, ippr_raudio_init, NULL,
-	  ippr_raudio_new, ippr_raudio_in, ippr_raudio_out },
-#endif
-	{ NULL, "", '\0', 0, 0, NULL, NULL }
-};
-
-
-int appr_add(ap)
-aproxy_t *ap;
-{
-	aproxy_t *a;
-
-	for (a = ap_proxies; a->apr_p; a++)
-		if ((a->apr_p == ap->apr_p) &&
-		    !strncmp(a->apr_label, ap->apr_label,
-			     sizeof(ap->apr_label)))
-			return -1;
-
-	for (a = ap_proxylist; a->apr_p; a = a->apr_next)
-		if ((a->apr_p == ap->apr_p) &&
-		    !strncmp(a->apr_label, ap->apr_label,
-			     sizeof(ap->apr_label)))
-			return -1;
-	ap->apr_next = ap_proxylist;
-	ap_proxylist = ap;
-	return (*ap->apr_init)();
-}
-
-
-int appr_del(ap)
-aproxy_t *ap;
-{
-	aproxy_t *a, **app;
-
-	for (app = &ap_proxylist; (a = *app); app = &a->apr_next)
-		if (a == ap) {
-			if (ap->apr_ref != 0)
-				return 1;
-			*app = a->apr_next;
-			return 0;
-		}
-	return -1;
-}
-
-
-int appr_ok(ip, tcp, nat)
-ip_t *ip;
-tcphdr_t *tcp;
-ipnat_t *nat;
-{
-	aproxy_t *apr = nat->in_apr;
-	u_short dport = nat->in_dport;
-
-	if (!apr || (apr->apr_flags & APR_DELETE) ||
-	    (ip->ip_p != apr->apr_p))
-		return 0;
-	if ((tcp && (tcp->th_dport != dport)) || (!tcp && dport))
-		return 0;
-	return 1;
-}
-
-
-/*
- * Allocate a new application proxy structure and fill it in with the
- * relevant details.  call the init function once complete, prior to
- * returning.
- */
-static ap_session_t *appr_new_session(apr, ip, fin, nat)
-aproxy_t *apr;
-ip_t *ip;
-fr_info_t *fin;
-nat_t *nat;
-{
-	register ap_session_t *aps;
-
-	if (!apr || (apr->apr_flags & APR_DELETE) || (ip->ip_p != apr->apr_p))
-		return NULL;
-
-	KMALLOC(aps, ap_session_t *);
-	if (!aps)
-		return NULL;
-	bzero((char *)aps, sizeof(*aps));
-	aps->aps_p = ip->ip_p;
-	aps->aps_data = NULL;
-	aps->aps_apr = apr;
-	aps->aps_psiz = 0;
-	if (apr->apr_new != NULL)
-		if ((*apr->apr_new)(fin, ip, aps, nat) == -1) {
-			KFREE(aps);
-			return NULL;
-		}
-	aps->aps_nat = nat;
-	aps->aps_next = ap_sess_list;
-	ap_sess_list = aps;
-	return aps;
-}
-
-
-/*
- * check to see if a packet should be passed through an active proxy routine
- * if one has been setup for it.
- */
-int appr_check(ip, fin, nat)
-ip_t *ip;
-fr_info_t *fin;
-nat_t *nat;
-{
-	ap_session_t *aps;
-	aproxy_t *apr;
-	tcphdr_t *tcp = NULL;
-	u_32_t sum;
-	short rv;
-	int err;
-
-	if (nat->nat_aps == NULL)
-		nat->nat_aps = appr_new_session(nat->nat_ptr->in_apr, ip,
-						fin, nat);
-	aps = nat->nat_aps;
-	if ((aps != NULL) && (aps->aps_p == ip->ip_p)) {
-		if (ip->ip_p == IPPROTO_TCP) {
-			tcp = (tcphdr_t *)fin->fin_dp;
-			/*
-			 * verify that the checksum is correct.  If not, then
-			 * don't do anything with this packet.
-			 */
-#if SOLARIS && defined(_KERNEL)
-			sum = fr_tcpsum(fin->fin_qfm, ip, tcp);
-#else
-			sum = fr_tcpsum(*(mb_t **)fin->fin_mp, ip, tcp);
-#endif
-			if (sum != tcp->th_sum) {
-				frstats[fin->fin_out].fr_tcpbad++;
-				return -1;
-			}
-		}
-
-		apr = aps->aps_apr;
-		err = 0;
-		if (fin->fin_out != 0) {
-			if (apr->apr_outpkt != NULL)
-				err = (*apr->apr_outpkt)(fin, ip, aps, nat);
-		} else {
-			if (apr->apr_inpkt != NULL)
-				err = (*apr->apr_inpkt)(fin, ip, aps, nat);
-		}
-
-		rv = APR_EXIT(err);
-		if (rv == -1)
-			return rv;
-
-		if (tcp != NULL) {
-			err = appr_fixseqack(fin, ip, aps, APR_INC(err));
-#if SOLARIS && defined(_KERNEL)
-			tcp->th_sum = fr_tcpsum(fin->fin_qfm, ip, tcp);
-#else
-			tcp->th_sum = fr_tcpsum(*(mb_t **)fin->fin_mp, ip, tcp);
-#endif
-		}
-		aps->aps_bytes += ip->ip_len;
-		aps->aps_pkts++;
-		return 1;
-	}
-	return 0;
-}
-
-
-aproxy_t *appr_match(pr, name)
-u_int pr;
-char *name;
-{
-	aproxy_t *ap;
-
-	for (ap = ap_proxies; ap->apr_p; ap++)
-		if ((ap->apr_p == pr) &&
-		    !strncmp(name, ap->apr_label, sizeof(ap->apr_label))) {
-			ap->apr_ref++;
-			return ap;
-		}
-
-	for (ap = ap_proxylist; ap; ap = ap->apr_next)
-		if ((ap->apr_p == pr) &&
-		    !strncmp(name, ap->apr_label, sizeof(ap->apr_label))) {
-			ap->apr_ref++;
-			return ap;
-		}
-	return NULL;
-}
-
-
-void appr_free(ap)
-aproxy_t *ap;
-{
-	ap->apr_ref--;
-}
-
-
-void aps_free(aps)
-ap_session_t *aps;
-{
-	ap_session_t *a, **ap;
-
-	if (!aps)
-		return;
-
-	for (ap = &ap_sess_list; (a = *ap); ap = &a->aps_next)
-		if (a == aps) {
-			*ap = a->aps_next;
-			break;
-		}
-
-	if ((aps->aps_data != NULL) && (aps->aps_psiz != 0))
-		KFREES(aps->aps_data, aps->aps_psiz);
-	KFREE(aps);
-}
-
-
-static int appr_fixseqack(fin, ip, aps, inc)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-int inc;
-{
-	int sel, ch = 0, out, nlen;
-	u_32_t seq1, seq2;
-	tcphdr_t *tcp;
-
-	tcp = (tcphdr_t *)fin->fin_dp;
-	out = fin->fin_out;
-	nlen = ip->ip_len;
-	nlen -= (ip->ip_hl << 2) + (tcp->th_off << 2);
-
-	if (out != 0) {
-		seq1 = (u_32_t)ntohl(tcp->th_seq);
-		sel = aps->aps_sel[out];
-
-		/* switch to other set ? */
-		if ((aps->aps_seqmin[!sel] > aps->aps_seqmin[sel]) &&
-		    (seq1 > aps->aps_seqmin[!sel]))
-			sel = aps->aps_sel[out] = !sel;
-
-		if (aps->aps_seqoff[sel]) {
-			seq2 = aps->aps_seqmin[sel] - aps->aps_seqoff[sel];
-			if (seq1 > seq2) {
-				seq2 = aps->aps_seqoff[sel];
-				seq1 += seq2;
-				tcp->th_seq = htonl(seq1);
-				ch = 1;
-			}
-		}
-
-		if (inc && (seq1 > aps->aps_seqmin[!sel])) {
-			aps->aps_seqmin[!sel] = seq1 + nlen - 1;
-			aps->aps_seqoff[!sel] = aps->aps_seqoff[sel] + inc;
-		}
-
-		/***/
-
-		seq1 = ntohl(tcp->th_ack);
-		sel = aps->aps_sel[1 - out];
-
-		/* switch to other set ? */
-		if ((aps->aps_ackmin[!sel] > aps->aps_ackmin[sel]) &&
-		    (seq1 > aps->aps_ackmin[!sel]))
-			sel = aps->aps_sel[1 - out] = !sel;
-
-		if (aps->aps_ackoff[sel] && (seq1 > aps->aps_ackmin[sel])) {
-			seq2 = aps->aps_ackoff[sel];
-			tcp->th_ack = htonl(seq1 - seq2);
-			ch = 1;
-		}
-	} else {
-		seq1 = ntohl(tcp->th_seq);
-		sel = aps->aps_sel[out];
-
-		/* switch to other set ? */
-		if ((aps->aps_ackmin[!sel] > aps->aps_ackmin[sel]) &&
-		    (seq1 > aps->aps_ackmin[!sel]))
-			sel = aps->aps_sel[out] = !sel;
-
-		if (aps->aps_ackoff[sel]) {
-			seq2 = aps->aps_ackmin[sel] -
-			       aps->aps_ackoff[sel];
-			if (seq1 > seq2) {
-				seq2 = aps->aps_ackoff[sel];
-				seq1 += seq2;
-				tcp->th_seq = htonl(seq1);
-				ch = 1;
-			}
-		}
-
-		if (inc && (seq1 > aps->aps_ackmin[!sel])) {
-			aps->aps_ackmin[!sel] = seq1 + nlen - 1;
-			aps->aps_ackoff[!sel] = aps->aps_ackoff[sel] + inc;
-		}
-
-		/***/
-
-		seq1 = ntohl(tcp->th_ack);
-		sel = aps->aps_sel[1 - out];
-
-		/* switch to other set ? */
-		if ((aps->aps_seqmin[!sel] > aps->aps_seqmin[sel]) &&
-		    (seq1 > aps->aps_seqmin[!sel]))
-			sel = aps->aps_sel[1 - out] = !sel;
-
-		if (aps->aps_seqoff[sel] && (seq1 > aps->aps_seqmin[sel])) {
-			seq2 = aps->aps_seqoff[sel];
-			tcp->th_ack = htonl(seq1 - seq2);
-			ch = 1;
-		}
-	}
-	return ch ? 2 : 0;
-}
-
-
-int appr_init()
-{
-	aproxy_t *ap;
-	int err = 0;
-
-	for (ap = ap_proxies; ap->apr_p; ap++) {
-		err = (*ap->apr_init)();
-		if (err != 0)
-			break;
-	}
-	return err;
-}
-
-
-void appr_unload()
-{
-	aproxy_t *ap;
-
-	for (ap = ap_proxies; ap->apr_p; ap++)
-		if (ap->apr_fini)
-			(*ap->apr_fini)();
-	for (ap = ap_proxylist; ap; ap = ap->apr_next)
-		if (ap->apr_fini)
-			(*ap->apr_fini)();
-}