1 files changed, 0 insertions, 611 deletions

diff --git a/net/ipv4/netfilter/ip_nat_helper_h323.c b/net/ipv4/netfilter/ip_nat_helper_h323.c
deleted file mode 100644
index bdc99ef6159e..000000000000
--- a/net/ipv4/netfilter/ip_nat_helper_h323.c
+++ /dev/null
@@ -1,611 +0,0 @@
-/*
- * H.323 extension for NAT alteration.
- *
- * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
- *
- * This source code is licensed under General Public License version 2.
- *
- * Based on the 'brute force' H.323 NAT module by
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
- */
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/moduleparam.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/****************************************************************************/
-static int set_addr(struct sk_buff **pskb,
-		    unsigned char **data, int dataoff,
-		    unsigned int addroff, __be32 ip, u_int16_t port)
-{
-	enum ip_conntrack_info ctinfo;
-	struct ip_conntrack *ct = ip_conntrack_get(*pskb, &ctinfo);
-	struct {
-		__be32 ip;
-		__be16 port;
-	} __attribute__ ((__packed__)) buf;
-	struct tcphdr _tcph, *th;
-
-	buf.ip = ip;
-	buf.port = htons(port);
-	addroff += dataoff;
-
-	if ((*pskb)->nh.iph->protocol == IPPROTO_TCP) {
-		if (!ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
-					      addroff, sizeof(buf),
-					      (char *) &buf, sizeof(buf))) {
-			if (net_ratelimit())
-				printk("ip_nat_h323: ip_nat_mangle_tcp_packet"
-				       " error\n");
-			return -1;
-		}
-
-		/* Relocate data pointer */
-		th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
-					sizeof(_tcph), &_tcph);
-		if (th == NULL)
-			return -1;
-		*data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
-		    th->doff * 4 + dataoff;
-	} else {
-		if (!ip_nat_mangle_udp_packet(pskb, ct, ctinfo,
-					      addroff, sizeof(buf),
-					      (char *) &buf, sizeof(buf))) {
-			if (net_ratelimit())
-				printk("ip_nat_h323: ip_nat_mangle_udp_packet"
-				       " error\n");
-			return -1;
-		}
-		/* ip_nat_mangle_udp_packet uses skb_make_writable() to copy
-		 * or pull everything in a linear buffer, so we can safely
-		 * use the skb pointers now */
-		*data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
-		    sizeof(struct udphdr);
-	}
-
-	return 0;
-}
-
-/****************************************************************************/
-static int set_h225_addr(struct sk_buff **pskb,
-			 unsigned char **data, int dataoff,
-			 TransportAddress * addr,
-			 __be32 ip, u_int16_t port)
-{
-	return set_addr(pskb, data, dataoff, addr->ipAddress.ip, ip, port);
-}
-
-/****************************************************************************/
-static int set_h245_addr(struct sk_buff **pskb,
-			 unsigned char **data, int dataoff,
-			 H245_TransportAddress * addr,
-			 __be32 ip, u_int16_t port)
-{
-	return set_addr(pskb, data, dataoff,
-			addr->unicastAddress.iPAddress.network, ip, port);
-}
-
-/****************************************************************************/
-static int set_sig_addr(struct sk_buff **pskb, struct ip_conntrack *ct,
-			enum ip_conntrack_info ctinfo,
-			unsigned char **data,
-			TransportAddress * addr, int count)
-{
-	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
-	int dir = CTINFO2DIR(ctinfo);
-	int i;
-	__be32 ip;
-	u_int16_t port;
-
-	for (i = 0; i < count; i++) {
-		if (get_h225_addr(*data, &addr[i], &ip, &port)) {
-			if (ip == ct->tuplehash[dir].tuple.src.ip &&
-			    port == info->sig_port[dir]) {
-				/* GW->GK */
-
-				/* Fix for Gnomemeeting */
-				if (i > 0 &&
-				    get_h225_addr(*data, &addr[0],
-						  &ip, &port) &&
-				    (ntohl(ip) & 0xff000000) == 0x7f000000)
-					i = 0;
-
-				DEBUGP
-				    ("ip_nat_ras: set signal address "
-				     "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-				     NIPQUAD(ip), port,
-				     NIPQUAD(ct->tuplehash[!dir].tuple.dst.
-					     ip), info->sig_port[!dir]);
-				return set_h225_addr(pskb, data, 0, &addr[i],
-						     ct->tuplehash[!dir].
-						     tuple.dst.ip,
-						     info->sig_port[!dir]);
-			} else if (ip == ct->tuplehash[dir].tuple.dst.ip &&
-				   port == info->sig_port[dir]) {
-				/* GK->GW */
-				DEBUGP
-				    ("ip_nat_ras: set signal address "
-				     "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-				     NIPQUAD(ip), port,
-				     NIPQUAD(ct->tuplehash[!dir].tuple.src.
-					     ip), info->sig_port[!dir]);
-				return set_h225_addr(pskb, data, 0, &addr[i],
-						     ct->tuplehash[!dir].
-						     tuple.src.ip,
-						     info->sig_port[!dir]);
-			}
-		}
-	}
-
-	return 0;
-}
-
-/****************************************************************************/
-static int set_ras_addr(struct sk_buff **pskb, struct ip_conntrack *ct,
-			enum ip_conntrack_info ctinfo,
-			unsigned char **data,
-			TransportAddress * addr, int count)
-{
-	int dir = CTINFO2DIR(ctinfo);
-	int i;
-	__be32 ip;
-	u_int16_t port;
-
-	for (i = 0; i < count; i++) {
-		if (get_h225_addr(*data, &addr[i], &ip, &port) &&
-		    ip == ct->tuplehash[dir].tuple.src.ip &&
-		    port == ntohs(ct->tuplehash[dir].tuple.src.u.udp.port)) {
-			DEBUGP("ip_nat_ras: set rasAddress "
-			       "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-			       NIPQUAD(ip), port,
-			       NIPQUAD(ct->tuplehash[!dir].tuple.dst.ip),
-			       ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.
-				     port));
-			return set_h225_addr(pskb, data, 0, &addr[i],
-					     ct->tuplehash[!dir].tuple.dst.ip,
-					     ntohs(ct->tuplehash[!dir].tuple.
-						   dst.u.udp.port));
-		}
-	}
-
-	return 0;
-}
-
-/****************************************************************************/
-static int nat_rtp_rtcp(struct sk_buff **pskb, struct ip_conntrack *ct,
-			enum ip_conntrack_info ctinfo,
-			unsigned char **data, int dataoff,
-			H245_TransportAddress * addr,
-			u_int16_t port, u_int16_t rtp_port,
-			struct ip_conntrack_expect *rtp_exp,
-			struct ip_conntrack_expect *rtcp_exp)
-{
-	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
-	int dir = CTINFO2DIR(ctinfo);
-	int i;
-	u_int16_t nated_port;
-
-	/* Set expectations for NAT */
-	rtp_exp->saved_proto.udp.port = rtp_exp->tuple.dst.u.udp.port;
-	rtp_exp->expectfn = ip_nat_follow_master;
-	rtp_exp->dir = !dir;
-	rtcp_exp->saved_proto.udp.port = rtcp_exp->tuple.dst.u.udp.port;
-	rtcp_exp->expectfn = ip_nat_follow_master;
-	rtcp_exp->dir = !dir;
-
-	/* Lookup existing expects */
-	for (i = 0; i < H323_RTP_CHANNEL_MAX; i++) {
-		if (info->rtp_port[i][dir] == rtp_port) {
-			/* Expected */
-
-			/* Use allocated ports first. This will refresh
-			 * the expects */
-			rtp_exp->tuple.dst.u.udp.port =
-			    htons(info->rtp_port[i][dir]);
-			rtcp_exp->tuple.dst.u.udp.port =
-			    htons(info->rtp_port[i][dir] + 1);
-			break;
-		} else if (info->rtp_port[i][dir] == 0) {
-			/* Not expected */
-			break;
-		}
-	}
-
-	/* Run out of expectations */
-	if (i >= H323_RTP_CHANNEL_MAX) {
-		if (net_ratelimit())
-			printk("ip_nat_h323: out of expectations\n");
-		return 0;
-	}
-
-	/* Try to get a pair of ports. */
-	for (nated_port = ntohs(rtp_exp->tuple.dst.u.udp.port);
-	     nated_port != 0; nated_port += 2) {
-		rtp_exp->tuple.dst.u.udp.port = htons(nated_port);
-		if (ip_conntrack_expect_related(rtp_exp) == 0) {
-			rtcp_exp->tuple.dst.u.udp.port =
-			    htons(nated_port + 1);
-			if (ip_conntrack_expect_related(rtcp_exp) == 0)
-				break;
-			ip_conntrack_unexpect_related(rtp_exp);
-		}
-	}
-
-	if (nated_port == 0) {	/* No port available */
-		if (net_ratelimit())
-			printk("ip_nat_h323: out of RTP ports\n");
-		return 0;
-	}
-
-	/* Modify signal */
-	if (set_h245_addr(pskb, data, dataoff, addr,
-			  ct->tuplehash[!dir].tuple.dst.ip,
-			  (port & 1) ? nated_port + 1 : nated_port) == 0) {
-		/* Save ports */
-		info->rtp_port[i][dir] = rtp_port;
-		info->rtp_port[i][!dir] = nated_port;
-	} else {
-		ip_conntrack_unexpect_related(rtp_exp);
-		ip_conntrack_unexpect_related(rtcp_exp);
-		return -1;
-	}
-
-	/* Success */
-	DEBUGP("ip_nat_h323: expect RTP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-	       NIPQUAD(rtp_exp->tuple.src.ip),
-	       ntohs(rtp_exp->tuple.src.u.udp.port),
-	       NIPQUAD(rtp_exp->tuple.dst.ip),
-	       ntohs(rtp_exp->tuple.dst.u.udp.port));
-	DEBUGP("ip_nat_h323: expect RTCP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-	       NIPQUAD(rtcp_exp->tuple.src.ip),
-	       ntohs(rtcp_exp->tuple.src.u.udp.port),
-	       NIPQUAD(rtcp_exp->tuple.dst.ip),
-	       ntohs(rtcp_exp->tuple.dst.u.udp.port));
-
-	return 0;
-}
-
-/****************************************************************************/
-static int nat_t120(struct sk_buff **pskb, struct ip_conntrack *ct,
-		    enum ip_conntrack_info ctinfo,
-		    unsigned char **data, int dataoff,
-		    H245_TransportAddress * addr, u_int16_t port,
-		    struct ip_conntrack_expect *exp)
-{
-	int dir = CTINFO2DIR(ctinfo);
-	u_int16_t nated_port = port;
-
-	/* Set expectations for NAT */
-	exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
-	exp->expectfn = ip_nat_follow_master;
-	exp->dir = !dir;
-
-	/* Try to get same port: if not, try to change it. */
-	for (; nated_port != 0; nated_port++) {
-		exp->tuple.dst.u.tcp.port = htons(nated_port);
-		if (ip_conntrack_expect_related(exp) == 0)
-			break;
-	}
-
-	if (nated_port == 0) {	/* No port available */
-		if (net_ratelimit())
-			printk("ip_nat_h323: out of TCP ports\n");
-		return 0;
-	}
-
-	/* Modify signal */
-	if (set_h245_addr(pskb, data, dataoff, addr,
-			  ct->tuplehash[!dir].tuple.dst.ip, nated_port) < 0) {
-		ip_conntrack_unexpect_related(exp);
-		return -1;
-	}
-
-	DEBUGP("ip_nat_h323: expect T.120 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-	       NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
-	       NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
-	return 0;
-}
-
-/****************************************************************************
- * This conntrack expect function replaces ip_conntrack_h245_expect()
- * which was set by ip_conntrack_helper_h323.c. It calls both
- * ip_nat_follow_master() and ip_conntrack_h245_expect()
- ****************************************************************************/
-static void ip_nat_h245_expect(struct ip_conntrack *new,
-			       struct ip_conntrack_expect *this)
-{
-	ip_nat_follow_master(new, this);
-	ip_conntrack_h245_expect(new, this);
-}
-
-/****************************************************************************/
-static int nat_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
-		    enum ip_conntrack_info ctinfo,
-		    unsigned char **data, int dataoff,
-		    TransportAddress * addr, u_int16_t port,
-		    struct ip_conntrack_expect *exp)
-{
-	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
-	int dir = CTINFO2DIR(ctinfo);
-	u_int16_t nated_port = port;
-
-	/* Set expectations for NAT */
-	exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
-	exp->expectfn = ip_nat_h245_expect;
-	exp->dir = !dir;
-
-	/* Check existing expects */
-	if (info->sig_port[dir] == port)
-		nated_port = info->sig_port[!dir];
-
-	/* Try to get same port: if not, try to change it. */
-	for (; nated_port != 0; nated_port++) {
-		exp->tuple.dst.u.tcp.port = htons(nated_port);
-		if (ip_conntrack_expect_related(exp) == 0)
-			break;
-	}
-
-	if (nated_port == 0) {	/* No port available */
-		if (net_ratelimit())
-			printk("ip_nat_q931: out of TCP ports\n");
-		return 0;
-	}
-
-	/* Modify signal */
-	if (set_h225_addr(pskb, data, dataoff, addr,
-			  ct->tuplehash[!dir].tuple.dst.ip,
-			  nated_port) == 0) {
-		/* Save ports */
-		info->sig_port[dir] = port;
-		info->sig_port[!dir] = nated_port;
-	} else {
-		ip_conntrack_unexpect_related(exp);
-		return -1;
-	}
-
-	DEBUGP("ip_nat_q931: expect H.245 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-	       NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
-	       NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
-	return 0;
-}
-
-/****************************************************************************
- * This conntrack expect function replaces ip_conntrack_q931_expect()
- * which was set by ip_conntrack_helper_h323.c.
- ****************************************************************************/
-static void ip_nat_q931_expect(struct ip_conntrack *new,
-			       struct ip_conntrack_expect *this)
-{
-	struct ip_nat_range range;
-
-	if (this->tuple.src.ip != 0) {	/* Only accept calls from GK */
-		ip_nat_follow_master(new, this);
-		goto out;
-	}
-
-	/* This must be a fresh one. */
-	BUG_ON(new->status & IPS_NAT_DONE_MASK);
-
-	/* Change src to where master sends to */
-	range.flags = IP_NAT_RANGE_MAP_IPS;
-	range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.ip;
-
-	/* hook doesn't matter, but it has to do source manip */
-	ip_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
-
-	/* For DST manip, map port here to where it's expected. */
-	range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
-	range.min = range.max = this->saved_proto;
-	range.min_ip = range.max_ip =
-	    new->master->tuplehash[!this->dir].tuple.src.ip;
-
-	/* hook doesn't matter, but it has to do destination manip */
-	ip_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
-
-      out:
-	ip_conntrack_q931_expect(new, this);
-}
-
-/****************************************************************************/
-static int nat_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
-		    enum ip_conntrack_info ctinfo,
-		    unsigned char **data, TransportAddress * addr, int idx,
-		    u_int16_t port, struct ip_conntrack_expect *exp)
-{
-	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
-	int dir = CTINFO2DIR(ctinfo);
-	u_int16_t nated_port = port;
-	__be32 ip;
-
-	/* Set expectations for NAT */
-	exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
-	exp->expectfn = ip_nat_q931_expect;
-	exp->dir = !dir;
-
-	/* Check existing expects */
-	if (info->sig_port[dir] == port)
-		nated_port = info->sig_port[!dir];
-
-	/* Try to get same port: if not, try to change it. */
-	for (; nated_port != 0; nated_port++) {
-		exp->tuple.dst.u.tcp.port = htons(nated_port);
-		if (ip_conntrack_expect_related(exp) == 0)
-			break;
-	}
-
-	if (nated_port == 0) {	/* No port available */
-		if (net_ratelimit())
-			printk("ip_nat_ras: out of TCP ports\n");
-		return 0;
-	}
-
-	/* Modify signal */
-	if (set_h225_addr(pskb, data, 0, &addr[idx],
-			  ct->tuplehash[!dir].tuple.dst.ip,
-			  nated_port) == 0) {
-		/* Save ports */
-		info->sig_port[dir] = port;
-		info->sig_port[!dir] = nated_port;
-
-		/* Fix for Gnomemeeting */
-		if (idx > 0 &&
-		    get_h225_addr(*data, &addr[0], &ip, &port) &&
-		    (ntohl(ip) & 0xff000000) == 0x7f000000) {
-			set_h225_addr_hook(pskb, data, 0, &addr[0],
-					   ct->tuplehash[!dir].tuple.dst.ip,
-					   info->sig_port[!dir]);
-		}
-	} else {
-		ip_conntrack_unexpect_related(exp);
-		return -1;
-	}
-
-	/* Success */
-	DEBUGP("ip_nat_ras: expect Q.931 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-	       NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
-	       NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
-	return 0;
-}
-
-/****************************************************************************/
-static void ip_nat_callforwarding_expect(struct ip_conntrack *new,
-					 struct ip_conntrack_expect *this)
-{
-	struct ip_nat_range range;
-
-	/* This must be a fresh one. */
-	BUG_ON(new->status & IPS_NAT_DONE_MASK);
-
-	/* Change src to where master sends to */
-	range.flags = IP_NAT_RANGE_MAP_IPS;
-	range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.ip;
-
-	/* hook doesn't matter, but it has to do source manip */
-	ip_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
-
-	/* For DST manip, map port here to where it's expected. */
-	range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
-	range.min = range.max = this->saved_proto;
-	range.min_ip = range.max_ip = this->saved_ip;
-
-	/* hook doesn't matter, but it has to do destination manip */
-	ip_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
-
-	ip_conntrack_q931_expect(new, this);
-}
-
-/****************************************************************************/
-static int nat_callforwarding(struct sk_buff **pskb, struct ip_conntrack *ct,
-			      enum ip_conntrack_info ctinfo,
-			      unsigned char **data, int dataoff,
-			      TransportAddress * addr, u_int16_t port,
-			      struct ip_conntrack_expect *exp)
-{
-	int dir = CTINFO2DIR(ctinfo);
-	u_int16_t nated_port;
-
-	/* Set expectations for NAT */
-	exp->saved_ip = exp->tuple.dst.ip;
-	exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
-	exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
-	exp->expectfn = ip_nat_callforwarding_expect;
-	exp->dir = !dir;
-
-	/* Try to get same port: if not, try to change it. */
-	for (nated_port = port; nated_port != 0; nated_port++) {
-		exp->tuple.dst.u.tcp.port = htons(nated_port);
-		if (ip_conntrack_expect_related(exp) == 0)
-			break;
-	}
-
-	if (nated_port == 0) {	/* No port available */
-		if (net_ratelimit())
-			printk("ip_nat_q931: out of TCP ports\n");
-		return 0;
-	}
-
-	/* Modify signal */
-	if (!set_h225_addr(pskb, data, dataoff, addr,
-			   ct->tuplehash[!dir].tuple.dst.ip,
-			   nated_port) == 0) {
-		ip_conntrack_unexpect_related(exp);
-		return -1;
-	}
-
-	/* Success */
-	DEBUGP("ip_nat_q931: expect Call Forwarding "
-	       "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
-	       NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
-	       NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
-	return 0;
-}
-
-/****************************************************************************/
-static int __init init(void)
-{
-	BUG_ON(rcu_dereference(set_h245_addr_hook) != NULL);
-	BUG_ON(rcu_dereference(set_h225_addr_hook) != NULL);
-	BUG_ON(rcu_dereference(set_sig_addr_hook) != NULL);
-	BUG_ON(rcu_dereference(set_ras_addr_hook) != NULL);
-	BUG_ON(rcu_dereference(nat_rtp_rtcp_hook) != NULL);
-	BUG_ON(rcu_dereference(nat_t120_hook) != NULL);
-	BUG_ON(rcu_dereference(nat_h245_hook) != NULL);
-	BUG_ON(rcu_dereference(nat_callforwarding_hook) != NULL);
-	BUG_ON(rcu_dereference(nat_q931_hook) != NULL);
-
-	rcu_assign_pointer(set_h245_addr_hook, set_h245_addr);
-	rcu_assign_pointer(set_h225_addr_hook, set_h225_addr);
-	rcu_assign_pointer(set_sig_addr_hook, set_sig_addr);
-	rcu_assign_pointer(set_ras_addr_hook, set_ras_addr);
-	rcu_assign_pointer(nat_rtp_rtcp_hook, nat_rtp_rtcp);
-	rcu_assign_pointer(nat_t120_hook, nat_t120);
-	rcu_assign_pointer(nat_h245_hook, nat_h245);
-	rcu_assign_pointer(nat_callforwarding_hook, nat_callforwarding);
-	rcu_assign_pointer(nat_q931_hook, nat_q931);
-
-	DEBUGP("ip_nat_h323: init success\n");
-	return 0;
-}
-
-/****************************************************************************/
-static void __exit fini(void)
-{
-	rcu_assign_pointer(set_h245_addr_hook, NULL);
-	rcu_assign_pointer(set_h225_addr_hook, NULL);
-	rcu_assign_pointer(set_sig_addr_hook, NULL);
-	rcu_assign_pointer(set_ras_addr_hook, NULL);
-	rcu_assign_pointer(nat_rtp_rtcp_hook, NULL);
-	rcu_assign_pointer(nat_t120_hook, NULL);
-	rcu_assign_pointer(nat_h245_hook, NULL);
-	rcu_assign_pointer(nat_callforwarding_hook, NULL);
-	rcu_assign_pointer(nat_q931_hook, NULL);
-	synchronize_rcu();
-}
-
-/****************************************************************************/
-module_init(init);
-module_exit(fini);
-
-MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
-MODULE_DESCRIPTION("H.323 NAT helper");
-MODULE_LICENSE("GPL");