Merge branch 'master' of /usr/src/ntfs-2.6/

70 files changed, 7584 insertions, 1131 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 97c276f..dc206f1 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -788,45 +788,53 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 }
 
 const struct proto_ops inet_stream_ops = {
-	.family =	PF_INET,
-	.owner =	THIS_MODULE,
-	.release =	inet_release,
-	.bind =		inet_bind,
-	.connect =	inet_stream_connect,
-	.socketpair =	sock_no_socketpair,
-	.accept =	inet_accept,
-	.getname =	inet_getname,
-	.poll =		tcp_poll,
-	.ioctl =	inet_ioctl,
-	.listen =	inet_listen,
-	.shutdown =	inet_shutdown,
-	.setsockopt =	sock_common_setsockopt,
-	.getsockopt =	sock_common_getsockopt,
-	.sendmsg =	inet_sendmsg,
-	.recvmsg =	sock_common_recvmsg,
-	.mmap =		sock_no_mmap,
-	.sendpage =	tcp_sendpage
+	.family		   = PF_INET,
+	.owner		   = THIS_MODULE,
+	.release	   = inet_release,
+	.bind		   = inet_bind,
+	.connect	   = inet_stream_connect,
+	.socketpair	   = sock_no_socketpair,
+	.accept		   = inet_accept,
+	.getname	   = inet_getname,
+	.poll		   = tcp_poll,
+	.ioctl		   = inet_ioctl,
+	.listen		   = inet_listen,
+	.shutdown	   = inet_shutdown,
+	.setsockopt	   = sock_common_setsockopt,
+	.getsockopt	   = sock_common_getsockopt,
+	.sendmsg	   = inet_sendmsg,
+	.recvmsg	   = sock_common_recvmsg,
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = tcp_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 const struct proto_ops inet_dgram_ops = {
-	.family =	PF_INET,
-	.owner =	THIS_MODULE,
-	.release =	inet_release,
-	.bind =		inet_bind,
-	.connect =	inet_dgram_connect,
-	.socketpair =	sock_no_socketpair,
-	.accept =	sock_no_accept,
-	.getname =	inet_getname,
-	.poll =		udp_poll,
-	.ioctl =	inet_ioctl,
-	.listen =	sock_no_listen,
-	.shutdown =	inet_shutdown,
-	.setsockopt =	sock_common_setsockopt,
-	.getsockopt =	sock_common_getsockopt,
-	.sendmsg =	inet_sendmsg,
-	.recvmsg =	sock_common_recvmsg,
-	.mmap =		sock_no_mmap,
-	.sendpage =	inet_sendpage,
+	.family		   = PF_INET,
+	.owner		   = THIS_MODULE,
+	.release	   = inet_release,
+	.bind		   = inet_bind,
+	.connect	   = inet_dgram_connect,
+	.socketpair	   = sock_no_socketpair,
+	.accept		   = sock_no_accept,
+	.getname	   = inet_getname,
+	.poll		   = udp_poll,
+	.ioctl		   = inet_ioctl,
+	.listen		   = sock_no_listen,
+	.shutdown	   = inet_shutdown,
+	.setsockopt	   = sock_common_setsockopt,
+	.getsockopt	   = sock_common_getsockopt,
+	.sendmsg	   = inet_sendmsg,
+	.recvmsg	   = sock_common_recvmsg,
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = inet_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 /*
@@ -834,24 +842,28 @@ const struct proto_ops inet_dgram_ops = {
  * udp_poll
  */
 static const struct proto_ops inet_sockraw_ops = {
-	.family =	PF_INET,
-	.owner =	THIS_MODULE,
-	.release =	inet_release,
-	.bind =		inet_bind,
-	.connect =	inet_dgram_connect,
-	.socketpair =	sock_no_socketpair,
-	.accept =	sock_no_accept,
-	.getname =	inet_getname,
-	.poll =		datagram_poll,
-	.ioctl =	inet_ioctl,
-	.listen =	sock_no_listen,
-	.shutdown =	inet_shutdown,
-	.setsockopt =	sock_common_setsockopt,
-	.getsockopt =	sock_common_getsockopt,
-	.sendmsg =	inet_sendmsg,
-	.recvmsg =	sock_common_recvmsg,
-	.mmap =		sock_no_mmap,
-	.sendpage =	inet_sendpage,
+	.family		   = PF_INET,
+	.owner		   = THIS_MODULE,
+	.release	   = inet_release,
+	.bind		   = inet_bind,
+	.connect	   = inet_dgram_connect,
+	.socketpair	   = sock_no_socketpair,
+	.accept		   = sock_no_accept,
+	.getname	   = inet_getname,
+	.poll		   = datagram_poll,
+	.ioctl		   = inet_ioctl,
+	.listen		   = sock_no_listen,
+	.shutdown	   = inet_shutdown,
+	.setsockopt	   = sock_common_setsockopt,
+	.getsockopt	   = sock_common_getsockopt,
+	.sendmsg	   = inet_sendmsg,
+	.recvmsg	   = sock_common_recvmsg,
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = inet_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 static struct net_proto_family inet_family_ops = {
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index aed537f..e16d8b4 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -97,6 +97,7 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 	ah->reserved = 0;
 	ah->spi = x->id.spi;
 	ah->seq_no = htonl(++x->replay.oseq);
+	xfrm_aevent_doreplay(x);
 	ahp->icv(ahp, skb, ah->auth_data);
 
 	top_iph->tos = iph->tos;
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index accdefe..041dadd 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -879,16 +879,16 @@ static int arp_process(struct sk_buff *skb)
 
 	n = __neigh_lookup(&arp_tbl, &sip, dev, 0);
 
-#ifdef CONFIG_IP_ACCEPT_UNSOLICITED_ARP
-	/* Unsolicited ARP is not accepted by default.
-	   It is possible, that this option should be enabled for some
-	   devices (strip is candidate)
-	 */
-	if (n == NULL &&
-	    arp->ar_op == htons(ARPOP_REPLY) &&
-	    inet_addr_type(sip) == RTN_UNICAST)
-		n = __neigh_lookup(&arp_tbl, &sip, dev, -1);
-#endif
+	if (ipv4_devconf.arp_accept) {
+		/* Unsolicited ARP is not accepted by default.
+		   It is possible, that this option should be enabled for some
+		   devices (strip is candidate)
+		 */
+		if (n == NULL &&
+		    arp->ar_op == htons(ARPOP_REPLY) &&
+		    inet_addr_type(sip) == RTN_UNICAST)
+			n = __neigh_lookup(&arp_tbl, &sip, dev, -1);
+	}
 
 	if (n) {
 		int state = NUD_REACHABLE;
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 3ffa60d..44fdf14 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1394,6 +1394,14 @@ static struct devinet_sysctl_table {
 			.proc_handler	= &proc_dointvec,
 		},
 		{
+			.ctl_name	= NET_IPV4_CONF_ARP_ACCEPT,
+			.procname	= "arp_accept",
+			.data		= &ipv4_devconf.arp_accept,
+			.maxlen		= sizeof(int),
+			.mode		= 0644,
+			.proc_handler	= &proc_dointvec,
+		},
+		{
 			.ctl_name	= NET_IPV4_CONF_NOXFRM,
 			.procname	= "disable_xfrm",
 			.data		= &ipv4_devconf.no_xfrm,
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 73bfcae..bf88c62 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -12,13 +12,6 @@
 #include <net/protocol.h>
 #include <net/udp.h>
 
-/* decapsulation data for use when post-processing */
-struct esp_decap_data {
-	xfrm_address_t	saddr;
-	__u16		sport;
-	__u8		proto;
-};
-
 static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int err;
@@ -97,6 +90,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 
 	esph->spi = x->id.spi;
 	esph->seq_no = htonl(++x->replay.oseq);
+	xfrm_aevent_doreplay(x);
 
 	if (esp->conf.ivlen)
 		crypto_cipher_set_iv(tfm, esp->conf.ivec, crypto_tfm_alg_ivsize(tfm));
@@ -150,6 +144,10 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
 	int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen;
 	int nfrags;
 	int encap_len = 0;
+	u8 nexthdr[2];
+	struct scatterlist *sg;
+	u8 workbuf[60];
+	int padlen;
 
 	if (!pskb_may_pull(skb, sizeof(struct ip_esp_hdr)))
 		goto out;
@@ -185,122 +183,82 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
 	if (esp->conf.ivlen)
 		crypto_cipher_set_iv(esp->conf.tfm, esph->enc_data, crypto_tfm_alg_ivsize(esp->conf.tfm));
 
-        {
-		u8 nexthdr[2];
-		struct scatterlist *sg = &esp->sgbuf[0];
-		u8 workbuf[60];
-		int padlen;
-
-		if (unlikely(nfrags > ESP_NUM_FAST_SG)) {
-			sg = kmalloc(sizeof(struct scatterlist)*nfrags, GFP_ATOMIC);
-			if (!sg)
-				goto out;
-		}
-		skb_to_sgvec(skb, sg, sizeof(struct ip_esp_hdr) + esp->conf.ivlen, elen);
-		crypto_cipher_decrypt(esp->conf.tfm, sg, sg, elen);
-		if (unlikely(sg != &esp->sgbuf[0]))
-			kfree(sg);
-
-		if (skb_copy_bits(skb, skb->len-alen-2, nexthdr, 2))
-			BUG();
+	sg = &esp->sgbuf[0];
 
-		padlen = nexthdr[0];
-		if (padlen+2 >= elen)
+	if (unlikely(nfrags > ESP_NUM_FAST_SG)) {
+		sg = kmalloc(sizeof(struct scatterlist)*nfrags, GFP_ATOMIC);
+		if (!sg)
 			goto out;
-
-		/* ... check padding bits here. Silly. :-) */ 
-
-		if (x->encap && decap && decap->decap_type) {
-			struct esp_decap_data *encap_data;
-			struct udphdr *uh = (struct udphdr *) (iph+1);
-
-			encap_data = (struct esp_decap_data *) (decap->decap_data);
-			encap_data->proto = 0;
-
-			switch (decap->decap_type) {
-			case UDP_ENCAP_ESPINUDP:
-			case UDP_ENCAP_ESPINUDP_NON_IKE:
-				encap_data->proto = AF_INET;
-				encap_data->saddr.a4 = iph->saddr;
-				encap_data->sport = uh->source;
-				encap_len = (void*)esph - (void*)uh;
-				break;
-
-			default:
-				goto out;
-			}
-		}
-
-		iph->protocol = nexthdr[1];
-		pskb_trim(skb, skb->len - alen - padlen - 2);
-		memcpy(workbuf, skb->nh.raw, iph->ihl*4);
-		skb->h.raw = skb_pull(skb, sizeof(struct ip_esp_hdr) + esp->conf.ivlen);
-		skb->nh.raw += encap_len + sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
-		memcpy(skb->nh.raw, workbuf, iph->ihl*4);
-		skb->nh.iph->tot_len = htons(skb->len);
 	}
+	skb_to_sgvec(skb, sg, sizeof(struct ip_esp_hdr) + esp->conf.ivlen, elen);
+	crypto_cipher_decrypt(esp->conf.tfm, sg, sg, elen);
+	if (unlikely(sg != &esp->sgbuf[0]))
+		kfree(sg);
 
-	return 0;
+	if (skb_copy_bits(skb, skb->len-alen-2, nexthdr, 2))
+		BUG();
 
-out:
-	return -EINVAL;
-}
+	padlen = nexthdr[0];
+	if (padlen+2 >= elen)
+		goto out;
 
-static int esp_post_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
-{
-  
-	if (x->encap) {
-		struct xfrm_encap_tmpl *encap;
-		struct esp_decap_data *decap_data;
+	/* ... check padding bits here. Silly. :-) */ 
 
-		encap = x->encap;
-		decap_data = (struct esp_decap_data *)(decap->decap_data);
+	if (x->encap) {
+		struct xfrm_encap_tmpl *encap = x->encap;
+		struct udphdr *uh;
 
-		/* first, make sure that the decap type == the encap type */
 		if (encap->encap_type != decap->decap_type)
-			return -EINVAL;
+			goto out;
 
-		switch (encap->encap_type) {
-		default:
-		case UDP_ENCAP_ESPINUDP:
-		case UDP_ENCAP_ESPINUDP_NON_IKE:
-			/*
-			 * 1) if the NAT-T peer's IP or port changed then
-			 *    advertize the change to the keying daemon.
-			 *    This is an inbound SA, so just compare
-			 *    SRC ports.
-			 */
-			if (decap_data->proto == AF_INET &&
-			    (decap_data->saddr.a4 != x->props.saddr.a4 ||
-			     decap_data->sport != encap->encap_sport)) {
-				xfrm_address_t ipaddr;
-
-				ipaddr.a4 = decap_data->saddr.a4;
-				km_new_mapping(x, &ipaddr, decap_data->sport);
-					
-				/* XXX: perhaps add an extra
-				 * policy check here, to see
-				 * if we should allow or
-				 * reject a packet from a
-				 * different source
-				 * address/port.
-				 */
-			}
-		
-			/*
-			 * 2) ignore UDP/TCP checksums in case
-			 *    of NAT-T in Transport Mode, or
-			 *    perform other post-processing fixes
-			 *    as per * draft-ietf-ipsec-udp-encaps-06,
-			 *    section 3.1.2
+		uh = (struct udphdr *)(iph + 1);
+		encap_len = (void*)esph - (void*)uh;
+
+		/*
+		 * 1) if the NAT-T peer's IP or port changed then
+		 *    advertize the change to the keying daemon.
+		 *    This is an inbound SA, so just compare
+		 *    SRC ports.
+		 */
+		if (iph->saddr != x->props.saddr.a4 ||
+		    uh->source != encap->encap_sport) {
+			xfrm_address_t ipaddr;
+
+			ipaddr.a4 = iph->saddr;
+			km_new_mapping(x, &ipaddr, uh->source);
+				
+			/* XXX: perhaps add an extra
+			 * policy check here, to see
+			 * if we should allow or
+			 * reject a packet from a
+			 * different source
+			 * address/port.
 			 */
-			if (!x->props.mode)
-				skb->ip_summed = CHECKSUM_UNNECESSARY;
-
-			break;
 		}
+	
+		/*
+		 * 2) ignore UDP/TCP checksums in case
+		 *    of NAT-T in Transport Mode, or
+		 *    perform other post-processing fixes
+		 *    as per draft-ietf-ipsec-udp-encaps-06,
+		 *    section 3.1.2
+		 */
+		if (!x->props.mode)
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
 	}
+
+	iph->protocol = nexthdr[1];
+	pskb_trim(skb, skb->len - alen - padlen - 2);
+	memcpy(workbuf, skb->nh.raw, iph->ihl*4);
+	skb->h.raw = skb_pull(skb, sizeof(struct ip_esp_hdr) + esp->conf.ivlen);
+	skb->nh.raw += encap_len + sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
+	memcpy(skb->nh.raw, workbuf, iph->ihl*4);
+	skb->nh.iph->tot_len = htons(skb->len);
+
 	return 0;
+
+out:
+	return -EINVAL;
 }
 
 static u32 esp4_get_max_size(struct xfrm_state *x, int mtu)
@@ -458,7 +416,6 @@ static struct xfrm_type esp_type =
 	.destructor	= esp_destroy,
 	.get_max_size	= esp4_get_max_size,
 	.input		= esp_input,
-	.post_input	= esp_post_input,
 	.output		= esp_output
 };
 
@@ -470,15 +427,6 @@ static struct net_protocol esp4_protocol = {
 
 static int __init esp4_init(void)
 {
-	struct xfrm_decap_state decap;
-
-	if (sizeof(struct esp_decap_data)  >
-	    sizeof(decap.decap_data)) {
-		extern void decap_data_too_small(void);
-
-		decap_data_too_small();
-	}
-
 	if (xfrm_register_type(&esp_type, AF_INET) < 0) {
 		printk(KERN_INFO "ip esp init: can't add xfrm type\n");
 		return -EAGAIN;
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 0dd4d06..768e8f5 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -40,6 +40,8 @@
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
 #include <linux/init.h>
+#include <linux/list.h>
+#include <linux/rcupdate.h>
 
 #include <net/ip.h>
 #include <net/protocol.h>
@@ -52,7 +54,7 @@
 
 struct fib_rule
 {
-	struct fib_rule *r_next;
+	struct hlist_node hlist;
 	atomic_t	r_clntref;
 	u32		r_preference;
 	unsigned char	r_table;
@@ -75,6 +77,7 @@ struct fib_rule
 #endif
 	char		r_ifname[IFNAMSIZ];
 	int		r_dead;
+	struct		rcu_head rcu;
 };
 
 static struct fib_rule default_rule = {
@@ -85,7 +88,6 @@ static struct fib_rule default_rule = {
 };
 
 static struct fib_rule main_rule = {
-	.r_next =	&default_rule,
 	.r_clntref =	ATOMIC_INIT(2),
 	.r_preference =	0x7FFE,
 	.r_table =	RT_TABLE_MAIN,
@@ -93,23 +95,24 @@ static struct fib_rule main_rule = {
 };
 
 static struct fib_rule local_rule = {
-	.r_next =	&main_rule,
 	.r_clntref =	ATOMIC_INIT(2),
 	.r_table =	RT_TABLE_LOCAL,
 	.r_action =	RTN_UNICAST,
 };
 
-static struct fib_rule *fib_rules = &local_rule;
-static DEFINE_RWLOCK(fib_rules_lock);
+static struct hlist_head fib_rules;
+
+/* writer func called from netlink -- rtnl_sem hold*/
 
 int inet_rtm_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
 	struct rtattr **rta = arg;
 	struct rtmsg *rtm = NLMSG_DATA(nlh);
-	struct fib_rule *r, **rp;
+	struct fib_rule *r;
+	struct hlist_node *node;
 	int err = -ESRCH;
 
-	for (rp=&fib_rules; (r=*rp) != NULL; rp=&r->r_next) {
+	hlist_for_each_entry(r, node, &fib_rules, hlist) {
 		if ((!rta[RTA_SRC-1] || memcmp(RTA_DATA(rta[RTA_SRC-1]), &r->r_src, 4) == 0) &&
 		    rtm->rtm_src_len == r->r_src_len &&
 		    rtm->rtm_dst_len == r->r_dst_len &&
@@ -126,10 +129,8 @@ int inet_rtm_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 			if (r == &local_rule)
 				break;
 
-			write_lock_bh(&fib_rules_lock);
-			*rp = r->r_next;
+			hlist_del_rcu(&r->hlist);
 			r->r_dead = 1;
-			write_unlock_bh(&fib_rules_lock);
 			fib_rule_put(r);
 			err = 0;
 			break;
@@ -150,21 +151,30 @@ static struct fib_table *fib_empty_table(void)
 	return NULL;
 }
 
+static inline void fib_rule_put_rcu(struct rcu_head *head)
+{
+	struct fib_rule *r = container_of(head, struct fib_rule, rcu);
+	kfree(r);
+}
+
 void fib_rule_put(struct fib_rule *r)
 {
 	if (atomic_dec_and_test(&r->r_clntref)) {
 		if (r->r_dead)
-			kfree(r);
+			call_rcu(&r->rcu, fib_rule_put_rcu);
 		else
 			printk("Freeing alive rule %p\n", r);
 	}
 }
 
+/* writer func called from netlink -- rtnl_sem hold*/
+
 int inet_rtm_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
 	struct rtattr **rta = arg;
 	struct rtmsg *rtm = NLMSG_DATA(nlh);
-	struct fib_rule *r, *new_r, **rp;
+	struct fib_rule *r, *new_r, *last = NULL;
+	struct hlist_node *node = NULL;
 	unsigned char table_id;
 
 	if (rtm->rtm_src_len > 32 || rtm->rtm_dst_len > 32 ||
@@ -188,6 +198,7 @@ int inet_rtm_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 	if (!new_r)
 		return -ENOMEM;
 	memset(new_r, 0, sizeof(*new_r));
+
 	if (rta[RTA_SRC-1])
 		memcpy(&new_r->r_src, RTA_DATA(rta[RTA_SRC-1]), 4);
 	if (rta[RTA_DST-1])
@@ -220,28 +231,28 @@ int inet_rtm_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 	if (rta[RTA_FLOW-1])
 		memcpy(&new_r->r_tclassid, RTA_DATA(rta[RTA_FLOW-1]), 4);
 #endif
+	r = container_of(fib_rules.first, struct fib_rule, hlist);
 
-	rp = &fib_rules;
 	if (!new_r->r_preference) {
-		r = fib_rules;
-		if (r && (r = r->r_next) != NULL) {
-			rp = &fib_rules->r_next;
+		if (r && r->hlist.next != NULL) {
+			r = container_of(r->hlist.next, struct fib_rule, hlist);
 			if (r->r_preference)
 				new_r->r_preference = r->r_preference - 1;
 		}
 	}
 
-	while ( (r = *rp) != NULL ) {
+	hlist_for_each_entry(r, node, &fib_rules, hlist) {
 		if (r->r_preference > new_r->r_preference)
 			break;
-		rp = &r->r_next;
+		last = r;
 	}
-
-	new_r->r_next = r;
 	atomic_inc(&new_r->r_clntref);
-	write_lock_bh(&fib_rules_lock);
-	*rp = new_r;
-	write_unlock_bh(&fib_rules_lock);
+
+	if (last)
+		hlist_add_after_rcu(&last->hlist, &new_r->hlist);
+	else
+		hlist_add_before_rcu(&new_r->hlist, &r->hlist);
+
 	return 0;
 }
 
@@ -254,30 +265,30 @@ u32 fib_rules_tclass(struct fib_result *res)
 }
 #endif
 
+/* callers should hold rtnl semaphore */
 
 static void fib_rules_detach(struct net_device *dev)
 {
+	struct hlist_node *node;
 	struct fib_rule *r;
 
-	for (r=fib_rules; r; r=r->r_next) {
-		if (r->r_ifindex == dev->ifindex) {
-			write_lock_bh(&fib_rules_lock);
+	hlist_for_each_entry(r, node, &fib_rules, hlist) {
+		if (r->r_ifindex == dev->ifindex)
 			r->r_ifindex = -1;
-			write_unlock_bh(&fib_rules_lock);
-		}
+
 	}
 }
 
+/* callers should hold rtnl semaphore */
+
 static void fib_rules_attach(struct net_device *dev)
 {
+	struct hlist_node *node;
 	struct fib_rule *r;
 
-	for (r=fib_rules; r; r=r->r_next) {
-		if (r->r_ifindex == -1 && strcmp(dev->name, r->r_ifname) == 0) {
-			write_lock_bh(&fib_rules_lock);
+	hlist_for_each_entry(r, node, &fib_rules, hlist) {
+		if (r->r_ifindex == -1 && strcmp(dev->name, r->r_ifname) == 0)
 			r->r_ifindex = dev->ifindex;
-			write_unlock_bh(&fib_rules_lock);
-		}
 	}
 }
 
@@ -286,14 +297,17 @@ int fib_lookup(const struct flowi *flp, struct fib_result *res)
 	int err;
 	struct fib_rule *r, *policy;
 	struct fib_table *tb;
+	struct hlist_node *node;
 
 	u32 daddr = flp->fl4_dst;
 	u32 saddr = flp->fl4_src;
 
 FRprintk("Lookup: %u.%u.%u.%u <- %u.%u.%u.%u ",
 	NIPQUAD(flp->fl4_dst), NIPQUAD(flp->fl4_src));
-	read_lock(&fib_rules_lock);
-	for (r = fib_rules; r; r=r->r_next) {
+
+	rcu_read_lock();
+
+	hlist_for_each_entry_rcu(r, node, &fib_rules, hlist) {
 		if (((saddr^r->r_src) & r->r_srcmask) ||
 		    ((daddr^r->r_dst) & r->r_dstmask) ||
 		    (r->r_tos && r->r_tos != flp->fl4_tos) ||
@@ -309,14 +323,14 @@ FRprintk("tb %d r %d ", r->r_table, r->r_action);
 			policy = r;
 			break;
 		case RTN_UNREACHABLE:
-			read_unlock(&fib_rules_lock);
+			rcu_read_unlock();
 			return -ENETUNREACH;
 		default:
 		case RTN_BLACKHOLE:
-			read_unlock(&fib_rules_lock);
+			rcu_read_unlock();
 			return -EINVAL;
 		case RTN_PROHIBIT:
-			read_unlock(&fib_rules_lock);
+			rcu_read_unlock();
 			return -EACCES;
 		}
 
@@ -327,16 +341,16 @@ FRprintk("tb %d r %d ", r->r_table, r->r_action);
 			res->r = policy;
 			if (policy)
 				atomic_inc(&policy->r_clntref);
-			read_unlock(&fib_rules_lock);
+			rcu_read_unlock();
 			return 0;
 		}
 		if (err < 0 && err != -EAGAIN) {
-			read_unlock(&fib_rules_lock);
+			rcu_read_unlock();
 			return err;
 		}
 	}
 FRprintk("FAILURE\n");
-	read_unlock(&fib_rules_lock);
+	rcu_read_unlock();
 	return -ENETUNREACH;
 }
 
@@ -414,20 +428,25 @@ rtattr_failure:
 	return -1;
 }
 
+/* callers should hold rtnl semaphore */
+
 int inet_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	int idx;
+	int idx = 0;
 	int s_idx = cb->args[0];
 	struct fib_rule *r;
+	struct hlist_node *node;
+
+	rcu_read_lock();
+	hlist_for_each_entry(r, node, &fib_rules, hlist) {
 
-	read_lock(&fib_rules_lock);
-	for (r=fib_rules, idx=0; r; r = r->r_next, idx++) {
 		if (idx < s_idx)
 			continue;
 		if (inet_fill_rule(skb, r, cb, NLM_F_MULTI) < 0)
 			break;
+		idx++;
 	}
-	read_unlock(&fib_rules_lock);
+	rcu_read_unlock();
 	cb->args[0] = idx;
 
 	return skb->len;
@@ -435,5 +454,9 @@ int inet_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
 
 void __init fib_rules_init(void)
 {
+	INIT_HLIST_HEAD(&fib_rules);
+	hlist_add_head(&local_rule.hlist, &fib_rules);
+	hlist_add_after(&local_rule.hlist, &main_rule.hlist);
+	hlist_add_after(&main_rule.hlist, &default_rule.hlist);
 	register_netdevice_notifier(&fib_rules_notifier);
 }
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index e320b32..ccd3efc 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -50,7 +50,7 @@
  *		Patrick McHardy <kaber@trash.net>
  */
 
-#define VERSION "0.404"
+#define VERSION "0.406"
 
 #include <linux/config.h>
 #include <asm/uaccess.h>
@@ -84,7 +84,7 @@
 #include "fib_lookup.h"
 
 #undef CONFIG_IP_FIB_TRIE_STATS
-#define MAX_CHILDS 16384
+#define MAX_STAT_DEPTH 32
 
 #define KEYLENGTH (8*sizeof(t_key))
 #define MASK_PFX(k, l) (((l)==0)?0:(k >> (KEYLENGTH-l)) << (KEYLENGTH-l))
@@ -154,7 +154,7 @@ struct trie_stat {
 	unsigned int tnodes;
 	unsigned int leaves;
 	unsigned int nullpointers;
-	unsigned int nodesizes[MAX_CHILDS];
+	unsigned int nodesizes[MAX_STAT_DEPTH];
 };
 
 struct trie {
@@ -2040,7 +2040,15 @@ rescan:
 static struct node *fib_trie_get_first(struct fib_trie_iter *iter,
 				       struct trie *t)
 {
-	struct node *n = rcu_dereference(t->trie);
+	struct node *n ;
+
+	if(!t)
+		return NULL;
+
+	n = rcu_dereference(t->trie);
+
+	if(!iter)
+		return NULL;
 
 	if (n && IS_TNODE(n)) {
 		iter->tnode = (struct tnode *) n;
@@ -2072,7 +2080,9 @@ static void trie_collect_stats(struct trie *t, struct trie_stat *s)
 			int i;
 
 			s->tnodes++;
-			s->nodesizes[tn->bits]++;
+			if(tn->bits < MAX_STAT_DEPTH)
+				s->nodesizes[tn->bits]++;
+
 			for (i = 0; i < (1<<tn->bits); i++)
 				if (!tn->child[i])
 					s->nullpointers++;
@@ -2102,8 +2112,8 @@ static void trie_show_stats(struct seq_file *seq, struct trie_stat *stat)
 	seq_printf(seq, "\tInternal nodes: %d\n\t", stat->tnodes);
 	bytes += sizeof(struct tnode) * stat->tnodes;
 
-	max = MAX_CHILDS-1;
-	while (max >= 0 && stat->nodesizes[max] == 0)
+	max = MAX_STAT_DEPTH;
+	while (max > 0 && stat->nodesizes[max-1] == 0)
 		max--;
 
 	pointers = 0;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 64ce52b..d512239 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1382,7 +1382,7 @@ static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
 		dev = ip_dev_find(imr->imr_address.s_addr);
 		if (!dev)
 			return NULL;
-		__dev_put(dev);
+		dev_put(dev);
 	}
 
 	if (!dev && !ip_route_output_key(&rt, &fl)) {
@@ -1730,7 +1730,7 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
 	if (!MULTICAST(addr))
 		return -EINVAL;
 
-	rtnl_shlock();
+	rtnl_lock();
 
 	in_dev = ip_mc_find_dev(imr);
 
@@ -1763,7 +1763,7 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
 	ip_mc_inc_group(in_dev, addr);
 	err = 0;
 done:
-	rtnl_shunlock();
+	rtnl_unlock();
 	return err;
 }
 
@@ -1837,7 +1837,7 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
 	if (!MULTICAST(addr))
 		return -EINVAL;
 
-	rtnl_shlock();
+	rtnl_lock();
 
 	imr.imr_multiaddr.s_addr = mreqs->imr_multiaddr;
 	imr.imr_address.s_addr = mreqs->imr_interface;
@@ -1947,7 +1947,7 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
 	ip_mc_add_src(in_dev, &mreqs->imr_multiaddr, omode, 1, 
 		&mreqs->imr_sourceaddr, 1);
 done:
-	rtnl_shunlock();
+	rtnl_unlock();
 	if (leavegroup)
 		return ip_mc_leave_group(sk, &imr);
 	return err;
@@ -1970,7 +1970,7 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
 	    msf->imsf_fmode != MCAST_EXCLUDE)
 		return -EINVAL;
 
-	rtnl_shlock();
+	rtnl_lock();
 
 	imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
 	imr.imr_address.s_addr = msf->imsf_interface;
@@ -2030,7 +2030,7 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
 	pmc->sfmode = msf->imsf_fmode;
 	err = 0;
 done:
-	rtnl_shunlock();
+	rtnl_unlock();
 	if (leavegroup)
 		err = ip_mc_leave_group(sk, &imr);
 	return err;
@@ -2050,7 +2050,7 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
 	if (!MULTICAST(addr))
 		return -EINVAL;
 
-	rtnl_shlock();
+	rtnl_lock();
 
 	imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
 	imr.imr_address.s_addr = msf->imsf_interface;
@@ -2072,7 +2072,7 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
 		goto done;
 	msf->imsf_fmode = pmc->sfmode;
 	psl = pmc->sflist;
-	rtnl_shunlock();
+	rtnl_unlock();
 	if (!psl) {
 		len = 0;
 		count = 0;
@@ -2091,7 +2091,7 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
 		return -EFAULT;
 	return 0;
 done:
-	rtnl_shunlock();
+	rtnl_unlock();
 	return err;
 }
 
@@ -2112,7 +2112,7 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 	if (!MULTICAST(addr))
 		return -EINVAL;
 
-	rtnl_shlock();
+	rtnl_lock();
 
 	err = -EADDRNOTAVAIL;
 
@@ -2125,7 +2125,7 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 		goto done;
 	gsf->gf_fmode = pmc->sfmode;
 	psl = pmc->sflist;
-	rtnl_shunlock();
+	rtnl_unlock();
 	count = psl ? psl->sl_count : 0;
 	copycount = count < gsf->gf_numsrc ? count : gsf->gf_numsrc;
 	gsf->gf_numsrc = count;
@@ -2146,7 +2146,7 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 	}
 	return 0;
 done:
-	rtnl_shunlock();
+	rtnl_unlock();
 	return err;
 }
 
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index ae20281..9a01bb8 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -648,3 +648,52 @@ void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr)
 }
 
 EXPORT_SYMBOL_GPL(inet_csk_addr2sockaddr);
+
+int inet_csk_ctl_sock_create(struct socket **sock, unsigned short family,
+			     unsigned short type, unsigned char protocol)
+{
+	int rc = sock_create_kern(family, type, protocol, sock);
+
+	if (rc == 0) {
+		(*sock)->sk->sk_allocation = GFP_ATOMIC;
+		inet_sk((*sock)->sk)->uc_ttl = -1;
+		/*
+		 * Unhash it so that IP input processing does not even see it,
+		 * we do not wish this socket to see incoming packets.
+		 */
+		(*sock)->sk->sk_prot->unhash((*sock)->sk);
+	}
+	return rc;
+}
+
+EXPORT_SYMBOL_GPL(inet_csk_ctl_sock_create);
+
+#ifdef CONFIG_COMPAT
+int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
+			       char __user *optval, int __user *optlen)
+{
+	const struct inet_connection_sock *icsk = inet_csk(sk);
+
+	if (icsk->icsk_af_ops->compat_getsockopt != NULL)
+		return icsk->icsk_af_ops->compat_getsockopt(sk, level, optname,
+							    optval, optlen);
+	return icsk->icsk_af_ops->getsockopt(sk, level, optname,
+					     optval, optlen);
+}
+
+EXPORT_SYMBOL_GPL(inet_csk_compat_getsockopt);
+
+int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
+			       char __user *optval, int optlen)
+{
+	const struct inet_connection_sock *icsk = inet_csk(sk);
+
+	if (icsk->icsk_af_ops->compat_setsockopt != NULL)
+		return icsk->icsk_af_ops->compat_setsockopt(sk, level, optname,
+							    optval, optlen);
+	return icsk->icsk_af_ops->setsockopt(sk, level, optname,
+					     optval, optlen);
+}
+
+EXPORT_SYMBOL_GPL(inet_csk_compat_setsockopt);
+#endif
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 57d290d..f75ff1d 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -847,10 +847,11 @@ int ip_append_data(struct sock *sk,
 	if (((length > mtu) && (sk->sk_protocol == IPPROTO_UDP)) &&
 			(rt->u.dst.dev->features & NETIF_F_UFO)) {
 
-		if(ip_ufo_append_data(sk, getfrag, from, length, hh_len,
-			       fragheaderlen, transhdrlen, mtu, flags))
+		err = ip_ufo_append_data(sk, getfrag, from, length, hh_len,
+					 fragheaderlen, transhdrlen, mtu,
+					 flags);
+		if (err)
 			goto error;
-
 		return 0;
 	}
 
@@ -1248,11 +1249,7 @@ int ip_push_pending_frames(struct sock *sk)
 	iph->tos = inet->tos;
 	iph->tot_len = htons(skb->len);
 	iph->frag_off = df;
-	if (!df) {
-		__ip_select_ident(iph, &rt->u.dst, 0);
-	} else {
-		iph->id = htons(inet->id++);
-	}
+	ip_select_ident(iph, &rt->u.dst, sk);
 	iph->ttl = ttl;
 	iph->protocol = sk->sk_protocol;
 	iph->saddr = rt->rt_src;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 2bf8d78..12e0bf1 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -50,6 +50,7 @@
 #define IP_CMSG_TOS		4
 #define IP_CMSG_RECVOPTS	8
 #define IP_CMSG_RETOPTS		16
+#define IP_CMSG_PASSSEC		32
 
 /*
  *	SOL_IP control messages.
@@ -109,6 +110,19 @@ static void ip_cmsg_recv_retopts(struct msghdr *msg, struct sk_buff *skb)
 	put_cmsg(msg, SOL_IP, IP_RETOPTS, opt->optlen, opt->__data);
 }
 
+static void ip_cmsg_recv_security(struct msghdr *msg, struct sk_buff *skb)
+{
+	char *secdata;
+	u32 seclen;
+	int err;
+
+	err = security_socket_getpeersec_dgram(skb, &secdata, &seclen);
+	if (err)
+		return;
+
+	put_cmsg(msg, SOL_IP, SCM_SECURITY, seclen, secdata);
+}
+
 
 void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
 {
@@ -138,6 +152,11 @@ void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
 
 	if (flags & 1)
 		ip_cmsg_recv_retopts(msg, skb);
+	if ((flags>>=1) == 0)
+		return;
+
+	if (flags & 1)
+		ip_cmsg_recv_security(msg, skb);
 }
 
 int ip_cmsg_send(struct msghdr *msg, struct ipcm_cookie *ipc)
@@ -380,20 +399,19 @@ out:
  *	an IP socket.
  */
 
-int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen)
+static int do_ip_setsockopt(struct sock *sk, int level,
+		int optname, char __user *optval, int optlen)
 {
 	struct inet_sock *inet = inet_sk(sk);
 	int val=0,err;
 
-	if (level != SOL_IP)
-		return -ENOPROTOOPT;
-
 	if (((1<<optname) & ((1<<IP_PKTINFO) | (1<<IP_RECVTTL) | 
 			    (1<<IP_RECVOPTS) | (1<<IP_RECVTOS) | 
 			    (1<<IP_RETOPTS) | (1<<IP_TOS) | 
 			    (1<<IP_TTL) | (1<<IP_HDRINCL) | 
 			    (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) | 
-			    (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND))) || 
+			    (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
+			    (1<<IP_PASSSEC))) ||
 				optname == IP_MULTICAST_TTL || 
 				optname == IP_MULTICAST_LOOP) { 
 		if (optlen >= sizeof(int)) {
@@ -478,6 +496,12 @@ int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
 			else
 				inet->cmsg_flags &= ~IP_CMSG_RETOPTS;
 			break;
+		case IP_PASSSEC:
+			if (val)
+				inet->cmsg_flags |= IP_CMSG_PASSSEC;
+			else
+				inet->cmsg_flags &= ~IP_CMSG_PASSSEC;
+			break;
 		case IP_TOS:	/* This sets both TOS and Precedence */
 			if (sk->sk_type == SOCK_STREAM) {
 				val &= ~3;
@@ -849,12 +873,7 @@ mc_msf_out:
 			break;
 
 		default:
-#ifdef CONFIG_NETFILTER
-			err = nf_setsockopt(sk, PF_INET, optname, optval, 
-					    optlen);
-#else
 			err = -ENOPROTOOPT;
-#endif
 			break;
 	}
 	release_sock(sk);
@@ -865,12 +884,68 @@ e_inval:
 	return -EINVAL;
 }
 
+int ip_setsockopt(struct sock *sk, int level,
+		int optname, char __user *optval, int optlen)
+{
+	int err;
+
+	if (level != SOL_IP)
+		return -ENOPROTOOPT;
+
+	err = do_ip_setsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible ENOPROTOOPTs except default case */
+	if (err == -ENOPROTOOPT && optname != IP_HDRINCL &&
+		optname != IP_IPSEC_POLICY && optname != IP_XFRM_POLICY
+#ifdef CONFIG_IP_MROUTE
+		&& (optname < MRT_BASE || optname > (MRT_BASE + 10))
+#endif
+	   ) {
+		lock_sock(sk);
+		err = nf_setsockopt(sk, PF_INET, optname, optval, optlen);
+		release_sock(sk);
+	}
+#endif
+	return err;
+}
+
+#ifdef CONFIG_COMPAT
+int compat_ip_setsockopt(struct sock *sk, int level, int optname,
+			 char __user *optval, int optlen)
+{
+	int err;
+
+	if (level != SOL_IP)
+		return -ENOPROTOOPT;
+
+	err = do_ip_setsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible ENOPROTOOPTs except default case */
+	if (err == -ENOPROTOOPT && optname != IP_HDRINCL &&
+	    optname != IP_IPSEC_POLICY && optname != IP_XFRM_POLICY
+#ifdef CONFIG_IP_MROUTE
+	    && (optname < MRT_BASE || optname > (MRT_BASE + 10))
+#endif
+	   ) {
+		lock_sock(sk);
+		err = compat_nf_setsockopt(sk, PF_INET, optname,
+					   optval, optlen);
+		release_sock(sk);
+	}
+#endif
+	return err;
+}
+
+EXPORT_SYMBOL(compat_ip_setsockopt);
+#endif
+
 /*
  *	Get the options. Note for future reference. The GET of IP options gets the
  *	_received_ ones. The set sets the _sent_ ones.
  */
 
-int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen)
+static int do_ip_getsockopt(struct sock *sk, int level, int optname,
+		char __user *optval, int __user *optlen)
 {
 	struct inet_sock *inet = inet_sk(sk);
 	int val;
@@ -932,6 +1007,9 @@ int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
 		case IP_RETOPTS:
 			val = (inet->cmsg_flags & IP_CMSG_RETOPTS) != 0;
 			break;
+		case IP_PASSSEC:
+			val = (inet->cmsg_flags & IP_CMSG_PASSSEC) != 0;
+			break;
 		case IP_TOS:
 			val = inet->tos;
 			break;
@@ -1051,17 +1129,8 @@ int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
 			val = inet->freebind; 
 			break; 
 		default:
-#ifdef CONFIG_NETFILTER
-			val = nf_getsockopt(sk, PF_INET, optname, optval, 
-					    &len);
-			release_sock(sk);
-			if (val >= 0)
-				val = put_user(len, optlen);
-			return val;
-#else
 			release_sock(sk);
 			return -ENOPROTOOPT;
-#endif
 	}
 	release_sock(sk);
 	
@@ -1082,6 +1151,67 @@ int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
 	return 0;
 }
 
+int ip_getsockopt(struct sock *sk, int level,
+		int optname, char __user *optval, int __user *optlen)
+{
+	int err;
+
+	err = do_ip_getsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible ENOPROTOOPTs except default case */
+	if (err == -ENOPROTOOPT && optname != IP_PKTOPTIONS
+#ifdef CONFIG_IP_MROUTE
+		&& (optname < MRT_BASE || optname > MRT_BASE+10)
+#endif
+	   ) {
+	   	int len;
+
+		if(get_user(len,optlen))
+			return -EFAULT;
+
+		lock_sock(sk);
+		err = nf_getsockopt(sk, PF_INET, optname, optval,
+				&len);
+		release_sock(sk);
+		if (err >= 0)
+			err = put_user(len, optlen);
+		return err;
+	}
+#endif
+	return err;
+}
+
+#ifdef CONFIG_COMPAT
+int compat_ip_getsockopt(struct sock *sk, int level, int optname,
+			 char __user *optval, int __user *optlen)
+{
+	int err = do_ip_getsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible ENOPROTOOPTs except default case */
+	if (err == -ENOPROTOOPT && optname != IP_PKTOPTIONS
+#ifdef CONFIG_IP_MROUTE
+	    && (optname < MRT_BASE || optname > MRT_BASE+10)
+#endif
+	   ) {
+	   	int len;
+
+		if (get_user(len, optlen))
+			return -EFAULT;
+
+		lock_sock(sk);
+		err = compat_nf_getsockopt(sk, PF_INET, optname, optval, &len);
+		release_sock(sk);
+		if (err >= 0)
+			err = put_user(len, optlen);
+		return err;
+	}
+#endif
+	return err;
+}
+
+EXPORT_SYMBOL(compat_ip_getsockopt);
+#endif
+
 EXPORT_SYMBOL(ip_cmsg_recv);
 
 EXPORT_SYMBOL(ip_getsockopt);
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index d64e2ec..c95020f 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -24,6 +24,7 @@
 #include <linux/list.h>
 #include <linux/vmalloc.h>
 #include <linux/rtnetlink.h>
+#include <linux/mutex.h>
 #include <net/ip.h>
 #include <net/xfrm.h>
 #include <net/icmp.h>
@@ -36,7 +37,7 @@ struct ipcomp_tfms {
 	int users;
 };
 
-static DECLARE_MUTEX(ipcomp_resource_sem);
+static DEFINE_MUTEX(ipcomp_resource_mutex);
 static void **ipcomp_scratches;
 static int ipcomp_scratch_users;
 static LIST_HEAD(ipcomp_tfms_list);
@@ -253,7 +254,7 @@ error:
 }
 
 /*
- * Must be protected by xfrm_cfg_sem.  State and tunnel user references are
+ * Must be protected by xfrm_cfg_mutex.  State and tunnel user references are
  * always incremented on success.
  */
 static int ipcomp_tunnel_attach(struct xfrm_state *x)
@@ -411,9 +412,9 @@ static void ipcomp_destroy(struct xfrm_state *x)
 	if (!ipcd)
 		return;
 	xfrm_state_delete_tunnel(x);
-	down(&ipcomp_resource_sem);
+	mutex_lock(&ipcomp_resource_mutex);
 	ipcomp_free_data(ipcd);
-	up(&ipcomp_resource_sem);
+	mutex_unlock(&ipcomp_resource_mutex);
 	kfree(ipcd);
 }
 
@@ -440,14 +441,14 @@ static int ipcomp_init_state(struct xfrm_state *x)
 	if (x->props.mode)
 		x->props.header_len += sizeof(struct iphdr);
 
-	down(&ipcomp_resource_sem);
+	mutex_lock(&ipcomp_resource_mutex);
 	if (!ipcomp_alloc_scratches())
 		goto error;
 
 	ipcd->tfms = ipcomp_alloc_tfms(x->calg->alg_name);
 	if (!ipcd->tfms)
 		goto error;
-	up(&ipcomp_resource_sem);
+	mutex_unlock(&ipcomp_resource_mutex);
 
 	if (x->props.mode) {
 		err = ipcomp_tunnel_attach(x);
@@ -464,10 +465,10 @@ out:
 	return err;
 
 error_tunnel:
-	down(&ipcomp_resource_sem);
+	mutex_lock(&ipcomp_resource_mutex);
 error:
 	ipcomp_free_data(ipcd);
-	up(&ipcomp_resource_sem);
+	mutex_unlock(&ipcomp_resource_mutex);
 	kfree(ipcd);
 	goto out;
 }
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index bb3613e..cb8a92f 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -186,7 +186,7 @@ static int __init ic_open_devs(void)
 	unsigned short oflags;
 
 	last = &ic_first_dev;
-	rtnl_shlock();
+	rtnl_lock();
 
 	/* bring loopback device up first */
 	if (dev_change_flags(&loopback_dev, loopback_dev.flags | IFF_UP) < 0)
@@ -215,7 +215,7 @@ static int __init ic_open_devs(void)
 				continue;
 			}
 			if (!(d = kmalloc(sizeof(struct ic_device), GFP_KERNEL))) {
-				rtnl_shunlock();
+				rtnl_unlock();
 				return -1;
 			}
 			d->dev = dev;
@@ -232,7 +232,7 @@ static int __init ic_open_devs(void)
 				dev->name, able, d->xid));
 		}
 	}
-	rtnl_shunlock();
+	rtnl_unlock();
 
 	*last = NULL;
 
@@ -251,7 +251,7 @@ static void __init ic_close_devs(void)
 	struct ic_device *d, *next;
 	struct net_device *dev;
 
-	rtnl_shlock();
+	rtnl_lock();
 	next = ic_first_dev;
 	while ((d = next)) {
 		next = d->next;
@@ -262,7 +262,7 @@ static void __init ic_close_devs(void)
 		}
 		kfree(d);
 	}
-	rtnl_shunlock();
+	rtnl_unlock();
 }
 
 /*
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 5c94c22..717ab7d 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -415,10 +415,10 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 			return -ENOBUFS;
 		break;
 	case 0:
-		dev=ip_dev_find(vifc->vifc_lcl_addr.s_addr);
+		dev = ip_dev_find(vifc->vifc_lcl_addr.s_addr);
 		if (!dev)
 			return -EADDRNOTAVAIL;
-		__dev_put(dev);
+		dev_put(dev);
 		break;
 	default:
 		return -EINVAL;
diff --git a/net/ipv4/ipvs/ip_vs_app.c b/net/ipv4/ipvs/ip_vs_app.c
index 9b176a9..e775233 100644
--- a/net/ipv4/ipvs/ip_vs_app.c
+++ b/net/ipv4/ipvs/ip_vs_app.c
@@ -31,6 +31,7 @@
 #include <linux/stat.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/mutex.h>
 
 #include <net/ip_vs.h>
 
@@ -40,7 +41,7 @@ EXPORT_SYMBOL(register_ip_vs_app_inc);
 
 /* ipvs application list head */
 static LIST_HEAD(ip_vs_app_list);
-static DECLARE_MUTEX(__ip_vs_app_mutex);
+static DEFINE_MUTEX(__ip_vs_app_mutex);
 
 
 /*
@@ -173,11 +174,11 @@ register_ip_vs_app_inc(struct ip_vs_app *app, __u16 proto, __u16 port)
 {
 	int result;
 
-	down(&__ip_vs_app_mutex);
+	mutex_lock(&__ip_vs_app_mutex);
 
 	result = ip_vs_app_inc_new(app, proto, port);
 
-	up(&__ip_vs_app_mutex);
+	mutex_unlock(&__ip_vs_app_mutex);
 
 	return result;
 }
@@ -191,11 +192,11 @@ int register_ip_vs_app(struct ip_vs_app *app)
 	/* increase the module use count */
 	ip_vs_use_count_inc();
 
-	down(&__ip_vs_app_mutex);
+	mutex_lock(&__ip_vs_app_mutex);
 
 	list_add(&app->a_list, &ip_vs_app_list);
 
-	up(&__ip_vs_app_mutex);
+	mutex_unlock(&__ip_vs_app_mutex);
 
 	return 0;
 }
@@ -209,7 +210,7 @@ void unregister_ip_vs_app(struct ip_vs_app *app)
 {
 	struct ip_vs_app *inc, *nxt;
 
-	down(&__ip_vs_app_mutex);
+	mutex_lock(&__ip_vs_app_mutex);
 
 	list_for_each_entry_safe(inc, nxt, &app->incs_list, a_list) {
 		ip_vs_app_inc_release(inc);
@@ -217,7 +218,7 @@ void unregister_ip_vs_app(struct ip_vs_app *app)
 
 	list_del(&app->a_list);
 
-	up(&__ip_vs_app_mutex);
+	mutex_unlock(&__ip_vs_app_mutex);
 
 	/* decrease the module use count */
 	ip_vs_use_count_dec();
@@ -498,7 +499,7 @@ static struct ip_vs_app *ip_vs_app_idx(loff_t pos)
 
 static void *ip_vs_app_seq_start(struct seq_file *seq, loff_t *pos)
 {
-	down(&__ip_vs_app_mutex);
+	mutex_lock(&__ip_vs_app_mutex);
 
 	return *pos ? ip_vs_app_idx(*pos - 1) : SEQ_START_TOKEN;
 }
@@ -530,7 +531,7 @@ static void *ip_vs_app_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 
 static void ip_vs_app_seq_stop(struct seq_file *seq, void *v)
 {
-	up(&__ip_vs_app_mutex);
+	mutex_unlock(&__ip_vs_app_mutex);
 }
 
 static int ip_vs_app_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index db78303..882b842 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -168,6 +168,26 @@ config IP_NF_PPTP
 	  If you want to compile it as a module, say M here and read
 	  Documentation/modules.txt.  If unsure, say `N'.
 
+config IP_NF_H323
+	tristate  'H.323 protocol support'
+	depends on IP_NF_CONNTRACK
+	help
+	  H.323 is a VoIP signalling protocol from ITU-T. As one of the most
+	  important VoIP protocols, it is widely used by voice hardware and
+	  software including voice gateways, IP phones, Netmeeting, OpenPhone,
+	  Gnomemeeting, etc.
+
+	  With this module you can support H.323 on a connection tracking/NAT
+	  firewall.
+
+	  This module supports RAS, Fast-start, H.245 tunnelling, RTP/RTCP
+	  and T.120 based data and applications including audio, video, FAX,
+	  chat, whiteboard, file transfer, etc. For more information, please
+	  see http://nath323.sourceforge.net/.
+
+	  If you want to compile it as a module, say 'M' here and read
+	  Documentation/modules.txt.  If unsure, say 'N'.
+
 config IP_NF_QUEUE
 	tristate "IP Userspace queueing via NETLINK (OBSOLETE)"
 	help
@@ -303,16 +323,6 @@ config IP_NF_MATCH_HASHLIMIT
 	  destination IP' or `500pps from any given source IP'  with a single
 	  IPtables rule.
 
-config IP_NF_MATCH_POLICY
-       tristate "IPsec policy match support"
-       depends on IP_NF_IPTABLES && XFRM
-       help
-         Policy matching allows you to match packets based on the
-         IPsec policy that was used during decapsulation/will
-         be used during encapsulation.
-
-         To compile it as a module, choose M here.  If unsure, say N.
-
 # `filter', generic and specific targets
 config IP_NF_FILTER
 	tristate "Packet filtering"
@@ -494,6 +504,12 @@ config IP_NF_NAT_PPTP
 	default IP_NF_NAT if IP_NF_PPTP=y
 	default m if IP_NF_PPTP=m
 
+config IP_NF_NAT_H323
+	tristate
+	depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
+	default IP_NF_NAT if IP_NF_H323=y
+	default m if IP_NF_H323=m
+
 # mangle + specific targets
 config IP_NF_MANGLE
 	tristate "Packet mangling"
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index e5c5b32..f2cd9a6 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -10,6 +10,9 @@ iptable_nat-objs	:= ip_nat_rule.o ip_nat_standalone.o
 ip_conntrack_pptp-objs	:= ip_conntrack_helper_pptp.o ip_conntrack_proto_gre.o
 ip_nat_pptp-objs	:= ip_nat_helper_pptp.o ip_nat_proto_gre.o
 
+ip_conntrack_h323-objs := ip_conntrack_helper_h323.o ip_conntrack_helper_h323_asn1.o
+ip_nat_h323-objs := ip_nat_helper_h323.o
+
 # connection tracking
 obj-$(CONFIG_IP_NF_CONNTRACK) += ip_conntrack.o
 obj-$(CONFIG_IP_NF_NAT) += ip_nat.o
@@ -22,6 +25,7 @@ obj-$(CONFIG_IP_NF_CONNTRACK_NETLINK) += ip_conntrack_netlink.o
 obj-$(CONFIG_IP_NF_CT_PROTO_SCTP) += ip_conntrack_proto_sctp.o
 
 # connection tracking helpers
+obj-$(CONFIG_IP_NF_H323) += ip_conntrack_h323.o
 obj-$(CONFIG_IP_NF_PPTP) += ip_conntrack_pptp.o
 obj-$(CONFIG_IP_NF_AMANDA) += ip_conntrack_amanda.o
 obj-$(CONFIG_IP_NF_TFTP) += ip_conntrack_tftp.o
@@ -30,6 +34,7 @@ obj-$(CONFIG_IP_NF_IRC) += ip_conntrack_irc.o
 obj-$(CONFIG_IP_NF_NETBIOS_NS) += ip_conntrack_netbios_ns.o
 
 # NAT helpers 
+obj-$(CONFIG_IP_NF_NAT_H323) += ip_nat_h323.o
 obj-$(CONFIG_IP_NF_NAT_PPTP) += ip_nat_pptp.o
 obj-$(CONFIG_IP_NF_NAT_AMANDA) += ip_nat_amanda.o
 obj-$(CONFIG_IP_NF_NAT_TFTP) += ip_nat_tftp.o
@@ -57,7 +62,6 @@ obj-$(CONFIG_IP_NF_MATCH_DSCP) += ipt_dscp.o
 obj-$(CONFIG_IP_NF_MATCH_AH_ESP) += ipt_ah.o ipt_esp.o
 obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
 obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o
-obj-$(CONFIG_IP_NF_MATCH_POLICY) += ipt_policy.o
 
 # targets
 obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index dd1048b..ff0c594 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -22,7 +22,7 @@
 #include <linux/init.h>
 
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_arp/arp_tables.h>
@@ -208,6 +208,7 @@ static unsigned int arpt_error(struct sk_buff **pskb,
 			       const struct net_device *in,
 			       const struct net_device *out,
 			       unsigned int hooknum,
+			       const struct xt_target *target,
 			       const void *targinfo,
 			       void *userinfo)
 {
@@ -300,6 +301,7 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
 				verdict = t->u.kernel.target->target(pskb,
 								     in, out,
 								     hook,
+								     t->u.kernel.target,
 								     t->data,
 								     userdata);
 
@@ -480,26 +482,31 @@ static inline int check_entry(struct arpt_entry *e, const char *name, unsigned i
 	}
 	t->u.kernel.target = target;
 
+	ret = xt_check_target(target, NF_ARP, t->u.target_size - sizeof(*t),
+			      name, e->comefrom, 0, 0);
+	if (ret)
+		goto err;
+
 	if (t->u.kernel.target == &arpt_standard_target) {
 		if (!standard_check(t, size)) {
 			ret = -EINVAL;
 			goto out;
 		}
 	} else if (t->u.kernel.target->checkentry
-		   && !t->u.kernel.target->checkentry(name, e, t->data,
+		   && !t->u.kernel.target->checkentry(name, e, target, t->data,
 						      t->u.target_size
 						      - sizeof(*t),
 						      e->comefrom)) {
-		module_put(t->u.kernel.target->me);
 		duprintf("arp_tables: check failed for `%s'.\n",
 			 t->u.kernel.target->name);
 		ret = -EINVAL;
-		goto out;
+		goto err;
 	}
 
 	(*i)++;
 	return 0;
-
+err:
+	module_put(t->u.kernel.target->me);
 out:
 	return ret;
 }
@@ -555,7 +562,7 @@ static inline int cleanup_entry(struct arpt_entry *e, unsigned int *i)
 
 	t = arpt_get_target(e);
 	if (t->u.kernel.target->destroy)
-		t->u.kernel.target->destroy(t->data,
+		t->u.kernel.target->destroy(t->u.kernel.target, t->data,
 					    t->u.target_size - sizeof(*t));
 	module_put(t->u.kernel.target->me);
 	return 0;
@@ -771,7 +778,7 @@ static int get_entries(const struct arpt_get_entries *entries,
 	struct arpt_table *t;
 
 	t = xt_find_table_lock(NF_ARP, entries->name);
-	if (t || !IS_ERR(t)) {
+	if (t && !IS_ERR(t)) {
 		struct xt_table_info *private = t->private;
 		duprintf("t->private->number = %u\n",
 			 private->number);
@@ -1138,11 +1145,15 @@ void arpt_unregister_table(struct arpt_table *table)
 /* The built-in targets: standard (NULL) and error. */
 static struct arpt_target arpt_standard_target = {
 	.name		= ARPT_STANDARD_TARGET,
+	.targetsize	= sizeof(int),
+	.family		= NF_ARP,
 };
 
 static struct arpt_target arpt_error_target = {
 	.name		= ARPT_ERROR_TARGET,
 	.target		= arpt_error,
+	.targetsize	= ARPT_FUNCTION_MAXNAMELEN,
+	.family		= NF_ARP,
 };
 
 static struct nf_sockopt_ops arpt_sockopts = {
@@ -1162,8 +1173,8 @@ static int __init init(void)
 	xt_proto_init(NF_ARP);
 
 	/* Noone else will be downing sem now, so we won't sleep */
-	xt_register_target(NF_ARP, &arpt_standard_target);
-	xt_register_target(NF_ARP, &arpt_error_target);
+	xt_register_target(&arpt_standard_target);
+	xt_register_target(&arpt_error_target);
 
 	/* Register setsockopt */
 	ret = nf_register_sockopt(&arpt_sockopts);
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index c97650a..0f2a953 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -8,9 +8,10 @@ MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
 MODULE_DESCRIPTION("arptables arp payload mangle target");
 
 static unsigned int
-target(struct sk_buff **pskb, const struct net_device *in,
-   const struct net_device *out, unsigned int hooknum, const void *targinfo,
-   void *userinfo)
+target(struct sk_buff **pskb,
+       const struct net_device *in, const struct net_device *out,
+       unsigned int hooknum, const struct xt_target *target,
+       const void *targinfo, void *userinfo)
 {
 	const struct arpt_mangle *mangle = targinfo;
 	struct arphdr *arp;
@@ -65,8 +66,8 @@ target(struct sk_buff **pskb, const struct net_device *in,
 }
 
 static int
-checkentry(const char *tablename, const void *e, void *targinfo,
-   unsigned int targinfosize, unsigned int hook_mask)
+checkentry(const char *tablename, const void *e, const struct xt_target *target,
+           void *targinfo, unsigned int targinfosize, unsigned int hook_mask)
 {
 	const struct arpt_mangle *mangle = targinfo;
 
@@ -80,12 +81,12 @@ checkentry(const char *tablename, const void *e, void *targinfo,
 	return 1;
 }
 
-static struct arpt_target arpt_mangle_reg
-= {
-        .name		= "mangle",
-        .target		= target,
-        .checkentry	= checkentry,
-        .me		= THIS_MODULE,
+static struct arpt_target arpt_mangle_reg = {
+	.name		= "mangle",
+	.target		= target,
+	.targetsize	= sizeof(struct arpt_mangle),
+	.checkentry	= checkentry,
+	.me		= THIS_MODULE,
 };
 
 static int __init init(void)
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 84c66db..9e34034 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -77,8 +77,8 @@ unsigned int ip_ct_log_invalid;
 static LIST_HEAD(unconfirmed);
 static int ip_conntrack_vmalloc;
 
-static unsigned int ip_conntrack_next_id = 1;
-static unsigned int ip_conntrack_expect_next_id = 1;
+static unsigned int ip_conntrack_next_id;
+static unsigned int ip_conntrack_expect_next_id;
 #ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
 struct notifier_block *ip_conntrack_chain;
 struct notifier_block *ip_conntrack_expect_chain;
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323.c b/net/ipv4/netfilter/ip_conntrack_helper_h323.c
new file mode 100644
index 0000000..daeb139
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323.c
@@ -0,0 +1,1731 @@
+/*
+ * H.323 connection tracking helper
+ *
+ * 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 connection tracking module by
+ * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * For more information, please see http://nath323.sourceforge.net/
+ *
+ * Changes:
+ * 	2006-02-01 - initial version 0.1
+ *
+ *	2006-02-20 - version 0.2
+ *	  1. Changed source format to follow kernel conventions
+ *	  2. Deleted some unnecessary structures
+ *	  3. Minor fixes
+ *
+ * 	2006-03-10 - version 0.3
+ * 	  1. Added support for multiple TPKTs in one packet (suggested by
+ * 	     Patrick McHardy)
+ * 	  2. Avoid excessive stack usage (based on Patrick McHardy's patch)
+ * 	  3. Added support for non-linear skb (based on Patrick McHardy's patch)
+ * 	  4. Fixed missing H.245 module owner (Patrick McHardy)
+ * 	  5. Avoid long RAS expectation chains (Patrick McHardy)
+ * 	  6. Fixed incorrect __exit attribute (Patrick McHardy)
+ * 	  7. Eliminated unnecessary return code
+ * 	  8. Fixed incorrect use of NAT data from conntrack code (suggested by
+ * 	     Patrick McHardy)
+ * 	  9. Fixed TTL calculation error in RCF
+ * 	  10. Added TTL support in RRQ
+ * 	  11. Better support for separate TPKT header and data
+ *
+ * 	2006-03-15 - version 0.4
+ * 	  1. Added support for T.120 channels
+ * 	  2. Added parameter gkrouted_only (suggested by Patrick McHardy)
+ * 	  3. Splitted ASN.1 code and data (suggested by Patrick McHardy)
+ * 	  4. Sort ASN.1 data to avoid forwarding declarations (suggested by
+ * 	     Patrick McHardy)
+ * 	  5. Reset next TPKT data length in get_tpkt_data()
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/netfilter.h>
+#include <linux/ip.h>
+#include <net/tcp.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ip_conntrack_core.h>
+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
+#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
+#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
+#include <linux/moduleparam.h>
+
+#include "ip_conntrack_helper_h323_asn1.h"
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+/* Parameters */
+static int gkrouted_only = 1;
+module_param(gkrouted_only, int, 0600);
+MODULE_PARM_DESC(gkrouted_only, "only accept calls from gatekeeper");
+
+/* Hooks for NAT */
+int (*set_h245_addr_hook) (struct sk_buff ** pskb,
+			   unsigned char **data, int dataoff,
+			   H245_TransportAddress * addr,
+			   u_int32_t ip, u_int16_t port);
+int (*set_h225_addr_hook) (struct sk_buff ** pskb,
+			   unsigned char **data, int dataoff,
+			   TransportAddress * addr,
+			   u_int32_t ip, u_int16_t port);
+int (*set_sig_addr_hook) (struct sk_buff ** pskb,
+			  struct ip_conntrack * ct,
+			  enum ip_conntrack_info ctinfo,
+			  unsigned char **data,
+			  TransportAddress * addr, int count);
+int (*set_ras_addr_hook) (struct sk_buff ** pskb,
+			  struct ip_conntrack * ct,
+			  enum ip_conntrack_info ctinfo,
+			  unsigned char **data,
+			  TransportAddress * addr, int count);
+int (*nat_rtp_rtcp_hook) (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);
+int (*nat_t120_hook) (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 (*nat_h245_hook) (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 (*nat_q931_hook) (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);
+
+
+static DEFINE_SPINLOCK(ip_h323_lock);
+static char *h323_buffer;
+
+/****************************************************************************/
+static int get_tpkt_data(struct sk_buff **pskb, struct ip_conntrack *ct,
+			 enum ip_conntrack_info ctinfo,
+			 unsigned char **data, int *datalen, int *dataoff)
+{
+	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+	int dir = CTINFO2DIR(ctinfo);
+	struct tcphdr _tcph, *th;
+	int tcpdatalen;
+	int tcpdataoff;
+	unsigned char *tpkt;
+	int tpktlen;
+	int tpktoff;
+
+	/* Get TCP header */
+	th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
+				sizeof(_tcph), &_tcph);
+	if (th == NULL)
+		return 0;
+
+	/* Get TCP data offset */
+	tcpdataoff = (*pskb)->nh.iph->ihl * 4 + th->doff * 4;
+
+	/* Get TCP data length */
+	tcpdatalen = (*pskb)->len - tcpdataoff;
+	if (tcpdatalen <= 0)	/* No TCP data */
+		goto clear_out;
+
+	if (*data == NULL) {	/* first TPKT */
+		/* Get first TPKT pointer */
+		tpkt = skb_header_pointer(*pskb, tcpdataoff, tcpdatalen,
+					  h323_buffer);
+		BUG_ON(tpkt == NULL);
+
+		/* Validate TPKT identifier */
+		if (tcpdatalen < 4 || tpkt[0] != 0x03 || tpkt[1] != 0) {
+			/* Netmeeting sends TPKT header and data separately */
+			if (info->tpkt_len[dir] > 0) {
+				DEBUGP("ip_ct_h323: previous packet "
+				       "indicated separate TPKT data of %hu "
+				       "bytes\n", info->tpkt_len[dir]);
+				if (info->tpkt_len[dir] <= tcpdatalen) {
+					/* Yes, there was a TPKT header
+					 * received */
+					*data = tpkt;
+					*datalen = info->tpkt_len[dir];
+					*dataoff = 0;
+					goto out;
+				}
+
+				/* Fragmented TPKT */
+				if (net_ratelimit())
+					printk("ip_ct_h323: "
+					       "fragmented TPKT\n");
+				goto clear_out;
+			}
+
+			/* It is not even a TPKT */
+			return 0;
+		}
+		tpktoff = 0;
+	} else {		/* Next TPKT */
+		tpktoff = *dataoff + *datalen;
+		tcpdatalen -= tpktoff;
+		if (tcpdatalen <= 4)	/* No more TPKT */
+			goto clear_out;
+		tpkt = *data + *datalen;
+
+		/* Validate TPKT identifier */
+		if (tpkt[0] != 0x03 || tpkt[1] != 0)
+			goto clear_out;
+	}
+
+	/* Validate TPKT length */
+	tpktlen = tpkt[2] * 256 + tpkt[3];
+	if (tpktlen > tcpdatalen) {
+		if (tcpdatalen == 4) {	/* Separate TPKT header */
+			/* Netmeeting sends TPKT header and data separately */
+			DEBUGP("ip_ct_h323: separate TPKT header indicates "
+			       "there will be TPKT data of %hu bytes\n",
+			       tpktlen - 4);
+			info->tpkt_len[dir] = tpktlen - 4;
+			return 0;
+		}
+
+		if (net_ratelimit())
+			printk("ip_ct_h323: incomplete TPKT (fragmented?)\n");
+		goto clear_out;
+	}
+
+	/* This is the encapsulated data */
+	*data = tpkt + 4;
+	*datalen = tpktlen - 4;
+	*dataoff = tpktoff + 4;
+
+      out:
+	/* Clear TPKT length */
+	info->tpkt_len[dir] = 0;
+	return 1;
+
+      clear_out:
+	info->tpkt_len[dir] = 0;
+	return 0;
+}
+
+/****************************************************************************/
+int get_h245_addr(unsigned char *data, H245_TransportAddress * addr,
+		  u_int32_t * ip, u_int16_t * port)
+{
+	unsigned char *p;
+
+	if (addr->choice != eH245_TransportAddress_unicastAddress ||
+	    addr->unicastAddress.choice != eUnicastAddress_iPAddress)
+		return 0;
+
+	p = data + addr->unicastAddress.iPAddress.network;
+	*ip = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]));
+	*port = (p[4] << 8) | (p[5]);
+
+	return 1;
+}
+
+/****************************************************************************/
+static int expect_rtp_rtcp(struct sk_buff **pskb, struct ip_conntrack *ct,
+			   enum ip_conntrack_info ctinfo,
+			   unsigned char **data, int dataoff,
+			   H245_TransportAddress * addr)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret = 0;
+	u_int32_t ip;
+	u_int16_t port;
+	u_int16_t rtp_port;
+	struct ip_conntrack_expect *rtp_exp;
+	struct ip_conntrack_expect *rtcp_exp;
+
+	/* Read RTP or RTCP address */
+	if (!get_h245_addr(*data, addr, &ip, &port) ||
+	    ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
+		return 0;
+
+	/* RTP port is even */
+	rtp_port = port & (~1);
+
+	/* Create expect for RTP */
+	if ((rtp_exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	rtp_exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	rtp_exp->tuple.src.u.udp.port = 0;
+	rtp_exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+	rtp_exp->tuple.dst.u.udp.port = htons(rtp_port);
+	rtp_exp->tuple.dst.protonum = IPPROTO_UDP;
+	rtp_exp->mask.src.ip = 0xFFFFFFFF;
+	rtp_exp->mask.src.u.udp.port = 0;
+	rtp_exp->mask.dst.ip = 0xFFFFFFFF;
+	rtp_exp->mask.dst.u.udp.port = 0xFFFF;
+	rtp_exp->mask.dst.protonum = 0xFF;
+	rtp_exp->flags = 0;
+
+	/* Create expect for RTCP */
+	if ((rtcp_exp = ip_conntrack_expect_alloc(ct)) == NULL) {
+		ip_conntrack_expect_put(rtp_exp);
+		return -1;
+	}
+	rtcp_exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	rtcp_exp->tuple.src.u.udp.port = 0;
+	rtcp_exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+	rtcp_exp->tuple.dst.u.udp.port = htons(rtp_port + 1);
+	rtcp_exp->tuple.dst.protonum = IPPROTO_UDP;
+	rtcp_exp->mask.src.ip = 0xFFFFFFFF;
+	rtcp_exp->mask.src.u.udp.port = 0;
+	rtcp_exp->mask.dst.ip = 0xFFFFFFFF;
+	rtcp_exp->mask.dst.u.udp.port = 0xFFFF;
+	rtcp_exp->mask.dst.protonum = 0xFF;
+	rtcp_exp->flags = 0;
+
+	if (ct->tuplehash[dir].tuple.src.ip !=
+	    ct->tuplehash[!dir].tuple.dst.ip && nat_rtp_rtcp_hook) {
+		/* NAT needed */
+		ret = nat_rtp_rtcp_hook(pskb, ct, ctinfo, data, dataoff,
+					addr, port, rtp_port, rtp_exp,
+					rtcp_exp);
+	} else {		/* Conntrack only */
+		rtp_exp->expectfn = NULL;
+		rtcp_exp->expectfn = NULL;
+
+		if (ip_conntrack_expect_related(rtp_exp) == 0) {
+			if (ip_conntrack_expect_related(rtcp_exp) == 0) {
+				DEBUGP("ip_ct_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_ct_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));
+			} else {
+				ip_conntrack_unexpect_related(rtp_exp);
+				ret = -1;
+			}
+		} else
+			ret = -1;
+	}
+
+	ip_conntrack_expect_put(rtp_exp);
+	ip_conntrack_expect_put(rtcp_exp);
+
+	return ret;
+}
+
+/****************************************************************************/
+static int expect_t120(struct sk_buff **pskb,
+		       struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, int dataoff,
+		       H245_TransportAddress * addr)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret = 0;
+	u_int32_t ip;
+	u_int16_t port;
+	struct ip_conntrack_expect *exp = NULL;
+
+	/* Read T.120 address */
+	if (!get_h245_addr(*data, addr, &ip, &port) ||
+	    ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
+		return 0;
+
+	/* Create expect for T.120 connections */
+	if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	exp->tuple.src.u.tcp.port = 0;
+	exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+	exp->tuple.dst.u.tcp.port = htons(port);
+	exp->tuple.dst.protonum = IPPROTO_TCP;
+	exp->mask.src.ip = 0xFFFFFFFF;
+	exp->mask.src.u.tcp.port = 0;
+	exp->mask.dst.ip = 0xFFFFFFFF;
+	exp->mask.dst.u.tcp.port = 0xFFFF;
+	exp->mask.dst.protonum = 0xFF;
+	exp->flags = IP_CT_EXPECT_PERMANENT;	/* Accept multiple channels */
+
+	if (ct->tuplehash[dir].tuple.src.ip !=
+	    ct->tuplehash[!dir].tuple.dst.ip && nat_t120_hook) {
+		/* NAT needed */
+		ret = nat_t120_hook(pskb, ct, ctinfo, data, dataoff, addr,
+				    port, exp);
+	} else {		/* Conntrack only */
+		exp->expectfn = NULL;
+		if (ip_conntrack_expect_related(exp) == 0) {
+			DEBUGP("ip_ct_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));
+		} else
+			ret = -1;
+	}
+
+	ip_conntrack_expect_put(exp);
+
+	return ret;
+}
+
+/****************************************************************************/
+static int process_h245_channel(struct sk_buff **pskb,
+				struct ip_conntrack *ct,
+				enum ip_conntrack_info ctinfo,
+				unsigned char **data, int dataoff,
+				H2250LogicalChannelParameters * channel)
+{
+	int ret;
+
+	if (channel->options & eH2250LogicalChannelParameters_mediaChannel) {
+		/* RTP */
+		ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+				      &channel->mediaChannel);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (channel->
+	    options & eH2250LogicalChannelParameters_mediaControlChannel) {
+		/* RTCP */
+		ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+				      &channel->mediaControlChannel);
+		if (ret < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_olc(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, int dataoff,
+		       OpenLogicalChannel * olc)
+{
+	int ret;
+
+	DEBUGP("ip_ct_h323: OpenLogicalChannel\n");
+
+	if (olc->forwardLogicalChannelParameters.multiplexParameters.choice ==
+	    eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters)
+	{
+		ret = process_h245_channel(pskb, ct, ctinfo, data, dataoff,
+					   &olc->
+					   forwardLogicalChannelParameters.
+					   multiplexParameters.
+					   h2250LogicalChannelParameters);
+		if (ret < 0)
+			return -1;
+	}
+
+	if ((olc->options &
+	     eOpenLogicalChannel_reverseLogicalChannelParameters) &&
+	    (olc->reverseLogicalChannelParameters.options &
+	     eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters)
+	    && (olc->reverseLogicalChannelParameters.multiplexParameters.
+		choice ==
+		eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters))
+	{
+		ret =
+		    process_h245_channel(pskb, ct, ctinfo, data, dataoff,
+					 &olc->
+					 reverseLogicalChannelParameters.
+					 multiplexParameters.
+					 h2250LogicalChannelParameters);
+		if (ret < 0)
+			return -1;
+	}
+
+	if ((olc->options & eOpenLogicalChannel_separateStack) &&
+	    olc->forwardLogicalChannelParameters.dataType.choice ==
+	    eDataType_data &&
+	    olc->forwardLogicalChannelParameters.dataType.data.application.
+	    choice == eDataApplicationCapability_application_t120 &&
+	    olc->forwardLogicalChannelParameters.dataType.data.application.
+	    t120.choice == eDataProtocolCapability_separateLANStack &&
+	    olc->separateStack.networkAddress.choice ==
+	    eNetworkAccessParameters_networkAddress_localAreaAddress) {
+		ret = expect_t120(pskb, ct, ctinfo, data, dataoff,
+				  &olc->separateStack.networkAddress.
+				  localAreaAddress);
+		if (ret < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_olca(struct sk_buff **pskb, struct ip_conntrack *ct,
+			enum ip_conntrack_info ctinfo,
+			unsigned char **data, int dataoff,
+			OpenLogicalChannelAck * olca)
+{
+	H2250LogicalChannelAckParameters *ack;
+	int ret;
+
+	DEBUGP("ip_ct_h323: OpenLogicalChannelAck\n");
+
+	if ((olca->options &
+	     eOpenLogicalChannelAck_reverseLogicalChannelParameters) &&
+	    (olca->reverseLogicalChannelParameters.options &
+	     eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters)
+	    && (olca->reverseLogicalChannelParameters.multiplexParameters.
+		choice ==
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters))
+	{
+		ret = process_h245_channel(pskb, ct, ctinfo, data, dataoff,
+					   &olca->
+					   reverseLogicalChannelParameters.
+					   multiplexParameters.
+					   h2250LogicalChannelParameters);
+		if (ret < 0)
+			return -1;
+	}
+
+	if ((olca->options &
+	     eOpenLogicalChannelAck_forwardMultiplexAckParameters) &&
+	    (olca->forwardMultiplexAckParameters.choice ==
+	     eOpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters))
+	{
+		ack = &olca->forwardMultiplexAckParameters.
+		    h2250LogicalChannelAckParameters;
+		if (ack->options &
+		    eH2250LogicalChannelAckParameters_mediaChannel) {
+			/* RTP */
+			ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+					      &ack->mediaChannel);
+			if (ret < 0)
+				return -1;
+		}
+
+		if (ack->options &
+		    eH2250LogicalChannelAckParameters_mediaControlChannel) {
+			/* RTCP */
+			ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+					      &ack->mediaControlChannel);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
+			enum ip_conntrack_info ctinfo,
+			unsigned char **data, int dataoff,
+			MultimediaSystemControlMessage * mscm)
+{
+	switch (mscm->choice) {
+	case eMultimediaSystemControlMessage_request:
+		if (mscm->request.choice ==
+		    eRequestMessage_openLogicalChannel) {
+			return process_olc(pskb, ct, ctinfo, data, dataoff,
+					   &mscm->request.openLogicalChannel);
+		}
+		DEBUGP("ip_ct_h323: H.245 Request %d\n",
+		       mscm->request.choice);
+		break;
+	case eMultimediaSystemControlMessage_response:
+		if (mscm->response.choice ==
+		    eResponseMessage_openLogicalChannelAck) {
+			return process_olca(pskb, ct, ctinfo, data, dataoff,
+					    &mscm->response.
+					    openLogicalChannelAck);
+		}
+		DEBUGP("ip_ct_h323: H.245 Response %d\n",
+		       mscm->response.choice);
+		break;
+	default:
+		DEBUGP("ip_ct_h323: H.245 signal %d\n", mscm->choice);
+		break;
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int h245_help(struct sk_buff **pskb, struct ip_conntrack *ct,
+		     enum ip_conntrack_info ctinfo)
+{
+	static MultimediaSystemControlMessage mscm;
+	unsigned char *data = NULL;
+	int datalen;
+	int dataoff;
+	int ret;
+
+	/* Until there's been traffic both ways, don't look in packets. */
+	if (ctinfo != IP_CT_ESTABLISHED
+	    && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
+		return NF_ACCEPT;
+	}
+	DEBUGP("ip_ct_h245: skblen = %u\n", (*pskb)->len);
+
+	spin_lock_bh(&ip_h323_lock);
+
+	/* Process each TPKT */
+	while (get_tpkt_data(pskb, ct, ctinfo, &data, &datalen, &dataoff)) {
+		DEBUGP("ip_ct_h245: TPKT %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
+		       NIPQUAD((*pskb)->nh.iph->saddr),
+		       NIPQUAD((*pskb)->nh.iph->daddr), datalen);
+
+		/* Decode H.245 signal */
+		ret = DecodeMultimediaSystemControlMessage(data, datalen,
+							   &mscm);
+		if (ret < 0) {
+			if (net_ratelimit())
+				printk("ip_ct_h245: decoding error: %s\n",
+				       ret == H323_ERROR_BOUND ?
+				       "out of bound" : "out of range");
+			/* We don't drop when decoding error */
+			break;
+		}
+
+		/* Process H.245 signal */
+		if (process_h245(pskb, ct, ctinfo, &data, dataoff, &mscm) < 0)
+			goto drop;
+	}
+
+	spin_unlock_bh(&ip_h323_lock);
+	return NF_ACCEPT;
+
+      drop:
+	spin_unlock_bh(&ip_h323_lock);
+	if (net_ratelimit())
+		printk("ip_ct_h245: packet dropped\n");
+	return NF_DROP;
+}
+
+/****************************************************************************/
+static struct ip_conntrack_helper ip_conntrack_helper_h245 = {
+	.name = "H.245",
+	.me = THIS_MODULE,
+	.max_expected = H323_RTP_CHANNEL_MAX * 4 + 2 /* T.120 */ ,
+	.timeout = 240,
+	.tuple = {.dst = {.protonum = IPPROTO_TCP}},
+	.mask = {.src = {.u = {0xFFFF}},
+		 .dst = {.protonum = 0xFF}},
+	.help = h245_help
+};
+
+/****************************************************************************/
+void ip_conntrack_h245_expect(struct ip_conntrack *new,
+			      struct ip_conntrack_expect *this)
+{
+	write_lock_bh(&ip_conntrack_lock);
+	new->helper = &ip_conntrack_helper_h245;
+	write_unlock_bh(&ip_conntrack_lock);
+}
+
+/****************************************************************************/
+int get_h225_addr(unsigned char *data, TransportAddress * addr,
+		  u_int32_t * ip, u_int16_t * port)
+{
+	unsigned char *p;
+
+	if (addr->choice != eTransportAddress_ipAddress)
+		return 0;
+
+	p = data + addr->ipAddress.ip;
+	*ip = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]));
+	*port = (p[4] << 8) | (p[5]);
+
+	return 1;
+}
+
+/****************************************************************************/
+static int expect_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, int dataoff,
+		       TransportAddress * addr)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret = 0;
+	u_int32_t ip;
+	u_int16_t port;
+	struct ip_conntrack_expect *exp = NULL;
+
+	/* Read h245Address */
+	if (!get_h225_addr(*data, addr, &ip, &port) ||
+	    ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
+		return 0;
+
+	/* Create expect for h245 connection */
+	if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	exp->tuple.src.u.tcp.port = 0;
+	exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+	exp->tuple.dst.u.tcp.port = htons(port);
+	exp->tuple.dst.protonum = IPPROTO_TCP;
+	exp->mask.src.ip = 0xFFFFFFFF;
+	exp->mask.src.u.tcp.port = 0;
+	exp->mask.dst.ip = 0xFFFFFFFF;
+	exp->mask.dst.u.tcp.port = 0xFFFF;
+	exp->mask.dst.protonum = 0xFF;
+	exp->flags = 0;
+
+	if (ct->tuplehash[dir].tuple.src.ip !=
+	    ct->tuplehash[!dir].tuple.dst.ip && nat_h245_hook) {
+		/* NAT needed */
+		ret = nat_h245_hook(pskb, ct, ctinfo, data, dataoff, addr,
+				    port, exp);
+	} else {		/* Conntrack only */
+		exp->expectfn = ip_conntrack_h245_expect;
+
+		if (ip_conntrack_expect_related(exp) == 0) {
+			DEBUGP("ip_ct_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));
+		} else
+			ret = -1;
+	}
+
+	ip_conntrack_expect_put(exp);
+
+	return ret;
+}
+
+/****************************************************************************/
+static int process_setup(struct sk_buff **pskb, struct ip_conntrack *ct,
+			 enum ip_conntrack_info ctinfo,
+			 unsigned char **data, int dataoff,
+			 Setup_UUIE * setup)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret;
+	int i;
+	u_int32_t ip;
+	u_int16_t port;
+
+	DEBUGP("ip_ct_q931: Setup\n");
+
+	if (setup->options & eSetup_UUIE_h245Address) {
+		ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+				  &setup->h245Address);
+		if (ret < 0)
+			return -1;
+	}
+
+	if ((setup->options & eSetup_UUIE_destCallSignalAddress) &&
+	    (set_h225_addr_hook) &&
+	    get_h225_addr(*data, &setup->destCallSignalAddress, &ip, &port) &&
+	    ip != ct->tuplehash[!dir].tuple.src.ip) {
+		DEBUGP("ip_ct_q931: set destCallSignalAddress "
+		       "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+		       NIPQUAD(ip), port,
+		       NIPQUAD(ct->tuplehash[!dir].tuple.src.ip),
+		       ntohs(ct->tuplehash[!dir].tuple.src.u.tcp.port));
+		ret = set_h225_addr_hook(pskb, data, dataoff,
+					 &setup->destCallSignalAddress,
+					 ct->tuplehash[!dir].tuple.src.ip,
+					 ntohs(ct->tuplehash[!dir].tuple.src.
+					       u.tcp.port));
+		if (ret < 0)
+			return -1;
+	}
+
+	if ((setup->options & eSetup_UUIE_sourceCallSignalAddress) &&
+	    (set_h225_addr_hook) &&
+	    get_h225_addr(*data, &setup->sourceCallSignalAddress, &ip, &port)
+	    && ip != ct->tuplehash[!dir].tuple.dst.ip) {
+		DEBUGP("ip_ct_q931: set sourceCallSignalAddress "
+		       "%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.tcp.port));
+		ret = set_h225_addr_hook(pskb, data, dataoff,
+					 &setup->sourceCallSignalAddress,
+					 ct->tuplehash[!dir].tuple.dst.ip,
+					 ntohs(ct->tuplehash[!dir].tuple.dst.
+					       u.tcp.port));
+		if (ret < 0)
+			return -1;
+	}
+
+	if (setup->options & eSetup_UUIE_fastStart) {
+		for (i = 0; i < setup->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &setup->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_callproceeding(struct sk_buff **pskb,
+				  struct ip_conntrack *ct,
+				  enum ip_conntrack_info ctinfo,
+				  unsigned char **data, int dataoff,
+				  CallProceeding_UUIE * callproc)
+{
+	int ret;
+	int i;
+
+	DEBUGP("ip_ct_q931: CallProceeding\n");
+
+	if (callproc->options & eCallProceeding_UUIE_h245Address) {
+		ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+				  &callproc->h245Address);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (callproc->options & eCallProceeding_UUIE_fastStart) {
+		for (i = 0; i < callproc->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &callproc->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_connect(struct sk_buff **pskb, struct ip_conntrack *ct,
+			   enum ip_conntrack_info ctinfo,
+			   unsigned char **data, int dataoff,
+			   Connect_UUIE * connect)
+{
+	int ret;
+	int i;
+
+	DEBUGP("ip_ct_q931: Connect\n");
+
+	if (connect->options & eConnect_UUIE_h245Address) {
+		ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+				  &connect->h245Address);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (connect->options & eConnect_UUIE_fastStart) {
+		for (i = 0; i < connect->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &connect->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_alerting(struct sk_buff **pskb, struct ip_conntrack *ct,
+			    enum ip_conntrack_info ctinfo,
+			    unsigned char **data, int dataoff,
+			    Alerting_UUIE * alert)
+{
+	int ret;
+	int i;
+
+	DEBUGP("ip_ct_q931: Alerting\n");
+
+	if (alert->options & eAlerting_UUIE_h245Address) {
+		ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+				  &alert->h245Address);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (alert->options & eAlerting_UUIE_fastStart) {
+		for (i = 0; i < alert->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &alert->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_information(struct sk_buff **pskb,
+			       struct ip_conntrack *ct,
+			       enum ip_conntrack_info ctinfo,
+			       unsigned char **data, int dataoff,
+			       Information_UUIE * info)
+{
+	int ret;
+	int i;
+
+	DEBUGP("ip_ct_q931: Information\n");
+
+	if (info->options & eInformation_UUIE_fastStart) {
+		for (i = 0; i < info->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &info->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_facility(struct sk_buff **pskb, struct ip_conntrack *ct,
+			    enum ip_conntrack_info ctinfo,
+			    unsigned char **data, int dataoff,
+			    Facility_UUIE * facility)
+{
+	int ret;
+	int i;
+
+	DEBUGP("ip_ct_q931: Facility\n");
+
+	if (facility->options & eFacility_UUIE_h245Address) {
+		ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+				  &facility->h245Address);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (facility->options & eFacility_UUIE_fastStart) {
+		for (i = 0; i < facility->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &facility->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_progress(struct sk_buff **pskb, struct ip_conntrack *ct,
+			    enum ip_conntrack_info ctinfo,
+			    unsigned char **data, int dataoff,
+			    Progress_UUIE * progress)
+{
+	int ret;
+	int i;
+
+	DEBUGP("ip_ct_q931: Progress\n");
+
+	if (progress->options & eProgress_UUIE_h245Address) {
+		ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+				  &progress->h245Address);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (progress->options & eProgress_UUIE_fastStart) {
+		for (i = 0; i < progress->fastStart.count; i++) {
+			ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+					  &progress->fastStart.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
+			enum ip_conntrack_info ctinfo,
+			unsigned char **data, int dataoff, Q931 * q931)
+{
+	H323_UU_PDU *pdu = &q931->UUIE.h323_uu_pdu;
+	int i;
+	int ret = 0;
+
+	switch (pdu->h323_message_body.choice) {
+	case eH323_UU_PDU_h323_message_body_setup:
+		ret = process_setup(pskb, ct, ctinfo, data, dataoff,
+				    &pdu->h323_message_body.setup);
+		break;
+	case eH323_UU_PDU_h323_message_body_callProceeding:
+		ret = process_callproceeding(pskb, ct, ctinfo, data, dataoff,
+					     &pdu->h323_message_body.
+					     callProceeding);
+		break;
+	case eH323_UU_PDU_h323_message_body_connect:
+		ret = process_connect(pskb, ct, ctinfo, data, dataoff,
+				      &pdu->h323_message_body.connect);
+		break;
+	case eH323_UU_PDU_h323_message_body_alerting:
+		ret = process_alerting(pskb, ct, ctinfo, data, dataoff,
+				       &pdu->h323_message_body.alerting);
+		break;
+	case eH323_UU_PDU_h323_message_body_information:
+		ret = process_information(pskb, ct, ctinfo, data, dataoff,
+					  &pdu->h323_message_body.
+					  information);
+		break;
+	case eH323_UU_PDU_h323_message_body_facility:
+		ret = process_facility(pskb, ct, ctinfo, data, dataoff,
+				       &pdu->h323_message_body.facility);
+		break;
+	case eH323_UU_PDU_h323_message_body_progress:
+		ret = process_progress(pskb, ct, ctinfo, data, dataoff,
+				       &pdu->h323_message_body.progress);
+		break;
+	default:
+		DEBUGP("ip_ct_q931: Q.931 signal %d\n",
+		       pdu->h323_message_body.choice);
+		break;
+	}
+
+	if (ret < 0)
+		return -1;
+
+	if (pdu->options & eH323_UU_PDU_h245Control) {
+		for (i = 0; i < pdu->h245Control.count; i++) {
+			ret = process_h245(pskb, ct, ctinfo, data, dataoff,
+					   &pdu->h245Control.item[i]);
+			if (ret < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int q931_help(struct sk_buff **pskb, struct ip_conntrack *ct,
+		     enum ip_conntrack_info ctinfo)
+{
+	static Q931 q931;
+	unsigned char *data = NULL;
+	int datalen;
+	int dataoff;
+	int ret;
+
+	/* Until there's been traffic both ways, don't look in packets. */
+	if (ctinfo != IP_CT_ESTABLISHED
+	    && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
+		return NF_ACCEPT;
+	}
+	DEBUGP("ip_ct_q931: skblen = %u\n", (*pskb)->len);
+
+	spin_lock_bh(&ip_h323_lock);
+
+	/* Process each TPKT */
+	while (get_tpkt_data(pskb, ct, ctinfo, &data, &datalen, &dataoff)) {
+		DEBUGP("ip_ct_q931: TPKT %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
+		       NIPQUAD((*pskb)->nh.iph->saddr),
+		       NIPQUAD((*pskb)->nh.iph->daddr), datalen);
+
+		/* Decode Q.931 signal */
+		ret = DecodeQ931(data, datalen, &q931);
+		if (ret < 0) {
+			if (net_ratelimit())
+				printk("ip_ct_q931: decoding error: %s\n",
+				       ret == H323_ERROR_BOUND ?
+				       "out of bound" : "out of range");
+			/* We don't drop when decoding error */
+			break;
+		}
+
+		/* Process Q.931 signal */
+		if (process_q931(pskb, ct, ctinfo, &data, dataoff, &q931) < 0)
+			goto drop;
+	}
+
+	spin_unlock_bh(&ip_h323_lock);
+	return NF_ACCEPT;
+
+      drop:
+	spin_unlock_bh(&ip_h323_lock);
+	if (net_ratelimit())
+		printk("ip_ct_q931: packet dropped\n");
+	return NF_DROP;
+}
+
+/****************************************************************************/
+static struct ip_conntrack_helper ip_conntrack_helper_q931 = {
+	.name = "Q.931",
+	.me = THIS_MODULE,
+	.max_expected = H323_RTP_CHANNEL_MAX * 4 + 4 /* T.120 and H.245 */ ,
+	.timeout = 240,
+	.tuple = {.src = {.u = {__constant_htons(Q931_PORT)}},
+		  .dst = {.protonum = IPPROTO_TCP}},
+	.mask = {.src = {.u = {0xFFFF}},
+		 .dst = {.protonum = 0xFF}},
+	.help = q931_help
+};
+
+/****************************************************************************/
+void ip_conntrack_q931_expect(struct ip_conntrack *new,
+			      struct ip_conntrack_expect *this)
+{
+	write_lock_bh(&ip_conntrack_lock);
+	new->helper = &ip_conntrack_helper_q931;
+	write_unlock_bh(&ip_conntrack_lock);
+}
+
+/****************************************************************************/
+static unsigned char *get_udp_data(struct sk_buff **pskb, int *datalen)
+{
+	struct udphdr _uh, *uh;
+	int dataoff;
+
+	uh = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4, sizeof(_uh),
+				&_uh);
+	if (uh == NULL)
+		return NULL;
+	dataoff = (*pskb)->nh.iph->ihl * 4 + sizeof(_uh);
+	if (dataoff >= (*pskb)->len)
+		return NULL;
+	*datalen = (*pskb)->len - dataoff;
+	return skb_header_pointer(*pskb, dataoff, *datalen, h323_buffer);
+}
+
+/****************************************************************************/
+static struct ip_conntrack_expect *find_expect(struct ip_conntrack *ct,
+					       u_int32_t ip, u_int16_t port)
+{
+	struct ip_conntrack_expect *exp;
+	struct ip_conntrack_tuple tuple;
+
+	tuple.src.ip = 0;
+	tuple.src.u.tcp.port = 0;
+	tuple.dst.ip = ip;
+	tuple.dst.u.tcp.port = htons(port);
+	tuple.dst.protonum = IPPROTO_TCP;
+
+	exp = __ip_conntrack_expect_find(&tuple);
+	if (exp->master == ct)
+		return exp;
+	return NULL;
+}
+
+/****************************************************************************/
+static int set_expect_timeout(struct ip_conntrack_expect *exp,
+			      unsigned timeout)
+{
+	if (!exp || !del_timer(&exp->timeout))
+		return 0;
+
+	exp->timeout.expires = jiffies + timeout * HZ;
+	add_timer(&exp->timeout);
+
+	return 1;
+}
+
+/****************************************************************************/
+static int expect_q931(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 ret = 0;
+	int i;
+	u_int32_t ip;
+	u_int16_t port;
+	struct ip_conntrack_expect *exp;
+
+	/* Look for the first related address */
+	for (i = 0; i < count; i++) {
+		if (get_h225_addr(*data, &addr[i], &ip, &port) &&
+		    ip == ct->tuplehash[dir].tuple.src.ip && port != 0)
+			break;
+	}
+
+	if (i >= count)		/* Not found */
+		return 0;
+
+	/* Create expect for Q.931 */
+	if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	exp->tuple.src.ip = gkrouted_only ?	/* only accept calls from GK? */
+	    ct->tuplehash[!dir].tuple.src.ip : 0;
+	exp->tuple.src.u.tcp.port = 0;
+	exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+	exp->tuple.dst.u.tcp.port = htons(port);
+	exp->tuple.dst.protonum = IPPROTO_TCP;
+	exp->mask.src.ip = gkrouted_only ? 0xFFFFFFFF : 0;
+	exp->mask.src.u.tcp.port = 0;
+	exp->mask.dst.ip = 0xFFFFFFFF;
+	exp->mask.dst.u.tcp.port = 0xFFFF;
+	exp->mask.dst.protonum = 0xFF;
+	exp->flags = IP_CT_EXPECT_PERMANENT;	/* Accept multiple calls */
+
+	if (nat_q931_hook) {	/* Need NAT */
+		ret = nat_q931_hook(pskb, ct, ctinfo, data, addr, i,
+				    port, exp);
+	} else {		/* Conntrack only */
+		exp->expectfn = ip_conntrack_q931_expect;
+
+		if (ip_conntrack_expect_related(exp) == 0) {
+			DEBUGP("ip_ct_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));
+
+			/* Save port for looking up expect in processing RCF */
+			info->sig_port[dir] = port;
+		} else
+			ret = -1;
+	}
+
+	ip_conntrack_expect_put(exp);
+
+	return ret;
+}
+
+/****************************************************************************/
+static int process_grq(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, GatekeeperRequest * grq)
+{
+	DEBUGP("ip_ct_ras: GRQ\n");
+
+	if (set_ras_addr_hook)	/* NATed */
+		return set_ras_addr_hook(pskb, ct, ctinfo, data,
+					 &grq->rasAddress, 1);
+	return 0;
+}
+
+/* Declare before using */
+static void ip_conntrack_ras_expect(struct ip_conntrack *new,
+				    struct ip_conntrack_expect *this);
+
+/****************************************************************************/
+static int process_gcf(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, GatekeeperConfirm * gcf)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret = 0;
+	u_int32_t ip;
+	u_int16_t port;
+	struct ip_conntrack_expect *exp;
+
+	DEBUGP("ip_ct_ras: GCF\n");
+
+	if (!get_h225_addr(*data, &gcf->rasAddress, &ip, &port))
+		return 0;
+
+	/* Registration port is the same as discovery port */
+	if (ip == ct->tuplehash[dir].tuple.src.ip &&
+	    port == ntohs(ct->tuplehash[dir].tuple.src.u.udp.port))
+		return 0;
+
+	/* Avoid RAS expectation loops. A GCF is never expected. */
+	if (test_bit(IPS_EXPECTED_BIT, &ct->status))
+		return 0;
+
+	/* Need new expect */
+	if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	exp->tuple.src.u.tcp.port = 0;
+	exp->tuple.dst.ip = ip;
+	exp->tuple.dst.u.tcp.port = htons(port);
+	exp->tuple.dst.protonum = IPPROTO_UDP;
+	exp->mask.src.ip = 0xFFFFFFFF;
+	exp->mask.src.u.tcp.port = 0;
+	exp->mask.dst.ip = 0xFFFFFFFF;
+	exp->mask.dst.u.tcp.port = 0xFFFF;
+	exp->mask.dst.protonum = 0xFF;
+	exp->flags = 0;
+	exp->expectfn = ip_conntrack_ras_expect;
+	if (ip_conntrack_expect_related(exp) == 0) {
+		DEBUGP("ip_ct_ras: expect RAS "
+		       "%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));
+	} else
+		ret = -1;
+
+	ip_conntrack_expect_put(exp);
+
+	return ret;
+}
+
+/****************************************************************************/
+static int process_rrq(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, RegistrationRequest * rrq)
+{
+	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+	int ret;
+
+	DEBUGP("ip_ct_ras: RRQ\n");
+
+	ret = expect_q931(pskb, ct, ctinfo, data,
+			  rrq->callSignalAddress.item,
+			  rrq->callSignalAddress.count);
+	if (ret < 0)
+		return -1;
+
+	if (set_ras_addr_hook) {
+		ret = set_ras_addr_hook(pskb, ct, ctinfo, data,
+					rrq->rasAddress.item,
+					rrq->rasAddress.count);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (rrq->options & eRegistrationRequest_timeToLive) {
+		DEBUGP("ip_ct_ras: RRQ TTL = %u seconds\n", rrq->timeToLive);
+		info->timeout = rrq->timeToLive;
+	} else
+		info->timeout = 0;
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_rcf(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, RegistrationConfirm * rcf)
+{
+	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+	int dir = CTINFO2DIR(ctinfo);
+	int ret;
+	struct ip_conntrack_expect *exp;
+
+	DEBUGP("ip_ct_ras: RCF\n");
+
+	if (set_sig_addr_hook) {
+		ret = set_sig_addr_hook(pskb, ct, ctinfo, data,
+					rcf->callSignalAddress.item,
+					rcf->callSignalAddress.count);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (rcf->options & eRegistrationConfirm_timeToLive) {
+		DEBUGP("ip_ct_ras: RCF TTL = %u seconds\n", rcf->timeToLive);
+		info->timeout = rcf->timeToLive;
+	}
+
+	if (info->timeout > 0) {
+		DEBUGP
+		    ("ip_ct_ras: set RAS connection timeout to %u seconds\n",
+		     info->timeout);
+		ip_ct_refresh_acct(ct, ctinfo, NULL, info->timeout * HZ);
+
+		/* Set expect timeout */
+		read_lock_bh(&ip_conntrack_lock);
+		exp = find_expect(ct, ct->tuplehash[dir].tuple.dst.ip,
+				  info->sig_port[!dir]);
+		if (exp) {
+			DEBUGP("ip_ct_ras: set Q.931 expect "
+			       "(%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu) "
+			       "timeout to %u seconds\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),
+			       info->timeout);
+			set_expect_timeout(exp, info->timeout);
+		}
+		read_unlock_bh(&ip_conntrack_lock);
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_urq(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, UnregistrationRequest * urq)
+{
+	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+	int dir = CTINFO2DIR(ctinfo);
+	int ret;
+
+	DEBUGP("ip_ct_ras: URQ\n");
+
+	if (set_sig_addr_hook) {
+		ret = set_sig_addr_hook(pskb, ct, ctinfo, data,
+					urq->callSignalAddress.item,
+					urq->callSignalAddress.count);
+		if (ret < 0)
+			return -1;
+	}
+
+	/* Clear old expect */
+	ip_ct_remove_expectations(ct);
+	info->sig_port[dir] = 0;
+	info->sig_port[!dir] = 0;
+
+	/* Give it 30 seconds for UCF or URJ */
+	ip_ct_refresh_acct(ct, ctinfo, NULL, 30 * HZ);
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_arq(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, AdmissionRequest * arq)
+{
+	struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+	int dir = CTINFO2DIR(ctinfo);
+	u_int32_t ip;
+	u_int16_t port;
+
+	DEBUGP("ip_ct_ras: ARQ\n");
+
+	if ((arq->options & eAdmissionRequest_destCallSignalAddress) &&
+	    get_h225_addr(*data, &arq->destCallSignalAddress, &ip, &port) &&
+	    ip == ct->tuplehash[dir].tuple.src.ip &&
+	    port == info->sig_port[dir] && set_h225_addr_hook) {
+		/* Answering ARQ */
+		return set_h225_addr_hook(pskb, data, 0,
+					  &arq->destCallSignalAddress,
+					  ct->tuplehash[!dir].tuple.dst.ip,
+					  info->sig_port[!dir]);
+	}
+
+	if ((arq->options & eAdmissionRequest_srcCallSignalAddress) &&
+	    get_h225_addr(*data, &arq->srcCallSignalAddress, &ip, &port) &&
+	    ip == ct->tuplehash[dir].tuple.src.ip && set_h225_addr_hook) {
+		/* Calling ARQ */
+		return set_h225_addr_hook(pskb, data, 0,
+					  &arq->srcCallSignalAddress,
+					  ct->tuplehash[!dir].tuple.dst.ip,
+					  port);
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_acf(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, AdmissionConfirm * acf)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret = 0;
+	u_int32_t ip;
+	u_int16_t port;
+	struct ip_conntrack_expect *exp;
+
+	DEBUGP("ip_ct_ras: ACF\n");
+
+	if (!get_h225_addr(*data, &acf->destCallSignalAddress, &ip, &port))
+		return 0;
+
+	if (ip == ct->tuplehash[dir].tuple.dst.ip) {	/* Answering ACF */
+		if (set_sig_addr_hook)
+			return set_sig_addr_hook(pskb, ct, ctinfo, data,
+						 &acf->destCallSignalAddress,
+						 1);
+		return 0;
+	}
+
+	/* Need new expect */
+	if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	exp->tuple.src.u.tcp.port = 0;
+	exp->tuple.dst.ip = ip;
+	exp->tuple.dst.u.tcp.port = htons(port);
+	exp->tuple.dst.protonum = IPPROTO_TCP;
+	exp->mask.src.ip = 0xFFFFFFFF;
+	exp->mask.src.u.tcp.port = 0;
+	exp->mask.dst.ip = 0xFFFFFFFF;
+	exp->mask.dst.u.tcp.port = 0xFFFF;
+	exp->mask.dst.protonum = 0xFF;
+	exp->flags = IP_CT_EXPECT_PERMANENT;
+	exp->expectfn = ip_conntrack_q931_expect;
+
+	if (ip_conntrack_expect_related(exp) == 0) {
+		DEBUGP("ip_ct_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));
+	} else
+		ret = -1;
+
+	ip_conntrack_expect_put(exp);
+
+	return ret;
+}
+
+/****************************************************************************/
+static int process_lrq(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, LocationRequest * lrq)
+{
+	DEBUGP("ip_ct_ras: LRQ\n");
+
+	if (set_ras_addr_hook)
+		return set_ras_addr_hook(pskb, ct, ctinfo, data,
+					 &lrq->replyAddress, 1);
+	return 0;
+}
+
+/****************************************************************************/
+static int process_lcf(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, LocationConfirm * lcf)
+{
+	int dir = CTINFO2DIR(ctinfo);
+	int ret = 0;
+	u_int32_t ip;
+	u_int16_t port;
+	struct ip_conntrack_expect *exp = NULL;
+
+	DEBUGP("ip_ct_ras: LCF\n");
+
+	if (!get_h225_addr(*data, &lcf->callSignalAddress, &ip, &port))
+		return 0;
+
+	/* Need new expect for call signal */
+	if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+		return -1;
+	exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+	exp->tuple.src.u.tcp.port = 0;
+	exp->tuple.dst.ip = ip;
+	exp->tuple.dst.u.tcp.port = htons(port);
+	exp->tuple.dst.protonum = IPPROTO_TCP;
+	exp->mask.src.ip = 0xFFFFFFFF;
+	exp->mask.src.u.tcp.port = 0;
+	exp->mask.dst.ip = 0xFFFFFFFF;
+	exp->mask.dst.u.tcp.port = 0xFFFF;
+	exp->mask.dst.protonum = 0xFF;
+	exp->flags = IP_CT_EXPECT_PERMANENT;
+	exp->expectfn = ip_conntrack_q931_expect;
+
+	if (ip_conntrack_expect_related(exp) == 0) {
+		DEBUGP("ip_ct_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));
+	} else
+		ret = -1;
+
+	ip_conntrack_expect_put(exp);
+
+	/* Ignore rasAddress */
+
+	return ret;
+}
+
+/****************************************************************************/
+static int process_irr(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, InfoRequestResponse * irr)
+{
+	int ret;
+
+	DEBUGP("ip_ct_ras: IRR\n");
+
+	if (set_ras_addr_hook) {
+		ret = set_ras_addr_hook(pskb, ct, ctinfo, data,
+					&irr->rasAddress, 1);
+		if (ret < 0)
+			return -1;
+	}
+
+	if (set_sig_addr_hook) {
+		ret = set_sig_addr_hook(pskb, ct, ctinfo, data,
+					irr->callSignalAddress.item,
+					irr->callSignalAddress.count);
+		if (ret < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int process_ras(struct sk_buff **pskb, struct ip_conntrack *ct,
+		       enum ip_conntrack_info ctinfo,
+		       unsigned char **data, RasMessage * ras)
+{
+	switch (ras->choice) {
+	case eRasMessage_gatekeeperRequest:
+		return process_grq(pskb, ct, ctinfo, data,
+				   &ras->gatekeeperRequest);
+	case eRasMessage_gatekeeperConfirm:
+		return process_gcf(pskb, ct, ctinfo, data,
+				   &ras->gatekeeperConfirm);
+	case eRasMessage_registrationRequest:
+		return process_rrq(pskb, ct, ctinfo, data,
+				   &ras->registrationRequest);
+	case eRasMessage_registrationConfirm:
+		return process_rcf(pskb, ct, ctinfo, data,
+				   &ras->registrationConfirm);
+	case eRasMessage_unregistrationRequest:
+		return process_urq(pskb, ct, ctinfo, data,
+				   &ras->unregistrationRequest);
+	case eRasMessage_admissionRequest:
+		return process_arq(pskb, ct, ctinfo, data,
+				   &ras->admissionRequest);
+	case eRasMessage_admissionConfirm:
+		return process_acf(pskb, ct, ctinfo, data,
+				   &ras->admissionConfirm);
+	case eRasMessage_locationRequest:
+		return process_lrq(pskb, ct, ctinfo, data,
+				   &ras->locationRequest);
+	case eRasMessage_locationConfirm:
+		return process_lcf(pskb, ct, ctinfo, data,
+				   &ras->locationConfirm);
+	case eRasMessage_infoRequestResponse:
+		return process_irr(pskb, ct, ctinfo, data,
+				   &ras->infoRequestResponse);
+	default:
+		DEBUGP("ip_ct_ras: RAS message %d\n", ras->choice);
+		break;
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+static int ras_help(struct sk_buff **pskb, struct ip_conntrack *ct,
+		    enum ip_conntrack_info ctinfo)
+{
+	static RasMessage ras;
+	unsigned char *data;
+	int datalen = 0;
+	int ret;
+
+	DEBUGP("ip_ct_ras: skblen = %u\n", (*pskb)->len);
+
+	spin_lock_bh(&ip_h323_lock);
+
+	/* Get UDP data */
+	data = get_udp_data(pskb, &datalen);
+	if (data == NULL)
+		goto accept;
+	DEBUGP("ip_ct_ras: RAS message %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
+	       NIPQUAD((*pskb)->nh.iph->saddr),
+	       NIPQUAD((*pskb)->nh.iph->daddr), datalen);
+
+	/* Decode RAS message */
+	ret = DecodeRasMessage(data, datalen, &ras);
+	if (ret < 0) {
+		if (net_ratelimit())
+			printk("ip_ct_ras: decoding error: %s\n",
+			       ret == H323_ERROR_BOUND ?
+			       "out of bound" : "out of range");
+		goto accept;
+	}
+
+	/* Process RAS message */
+	if (process_ras(pskb, ct, ctinfo, &data, &ras) < 0)
+		goto drop;
+
+      accept:
+	spin_unlock_bh(&ip_h323_lock);
+	return NF_ACCEPT;
+
+      drop:
+	spin_unlock_bh(&ip_h323_lock);
+	if (net_ratelimit())
+		printk("ip_ct_ras: packet dropped\n");
+	return NF_DROP;
+}
+
+/****************************************************************************/
+static struct ip_conntrack_helper ip_conntrack_helper_ras = {
+	.name = "RAS",
+	.me = THIS_MODULE,
+	.max_expected = 32,
+	.timeout = 240,
+	.tuple = {.src = {.u = {__constant_htons(RAS_PORT)}},
+		  .dst = {.protonum = IPPROTO_UDP}},
+	.mask = {.src = {.u = {0xFFFE}},
+		 .dst = {.protonum = 0xFF}},
+	.help = ras_help,
+};
+
+/****************************************************************************/
+static void ip_conntrack_ras_expect(struct ip_conntrack *new,
+				    struct ip_conntrack_expect *this)
+{
+	write_lock_bh(&ip_conntrack_lock);
+	new->helper = &ip_conntrack_helper_ras;
+	write_unlock_bh(&ip_conntrack_lock);
+}
+
+/****************************************************************************/
+/* Not __exit - called from init() */
+static void fini(void)
+{
+	ip_conntrack_helper_unregister(&ip_conntrack_helper_ras);
+	ip_conntrack_helper_unregister(&ip_conntrack_helper_q931);
+	kfree(h323_buffer);
+	DEBUGP("ip_ct_h323: fini\n");
+}
+
+/****************************************************************************/
+static int __init init(void)
+{
+	int ret;
+
+	h323_buffer = kmalloc(65536, GFP_KERNEL);
+	if (!h323_buffer)
+		return -ENOMEM;
+	if ((ret = ip_conntrack_helper_register(&ip_conntrack_helper_q931)) ||
+	    (ret = ip_conntrack_helper_register(&ip_conntrack_helper_ras))) {
+		fini();
+		return ret;
+	}
+
+	DEBUGP("ip_ct_h323: init success\n");
+	return 0;
+}
+
+/****************************************************************************/
+module_init(init);
+module_exit(fini);
+
+EXPORT_SYMBOL(get_h245_addr);
+EXPORT_SYMBOL(get_h225_addr);
+EXPORT_SYMBOL(ip_conntrack_h245_expect);
+EXPORT_SYMBOL(ip_conntrack_q931_expect);
+EXPORT_SYMBOL(set_h245_addr_hook);
+EXPORT_SYMBOL(set_h225_addr_hook);
+EXPORT_SYMBOL(set_sig_addr_hook);
+EXPORT_SYMBOL(set_ras_addr_hook);
+EXPORT_SYMBOL(nat_rtp_rtcp_hook);
+EXPORT_SYMBOL(nat_t120_hook);
+EXPORT_SYMBOL(nat_h245_hook);
+EXPORT_SYMBOL(nat_q931_hook);
+
+MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
+MODULE_DESCRIPTION("H.323 connection tracking helper");
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.c b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.c
new file mode 100644
index 0000000..afa5251
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.c
@@ -0,0 +1,870 @@
+/****************************************************************************
+ * ip_conntrack_helper_h323_asn1.c - BER and PER decoding library for H.323
+ * 			      	     conntrack/NAT module.
+ *
+ * Copyright (c) 2006 by Jing Min Zhao <zhaojingmin@hotmail.com>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ * See ip_conntrack_helper_h323_asn1.h for details.
+ *
+ ****************************************************************************/
+
+#ifdef __KERNEL__
+#include <linux/kernel.h>
+#else
+#include <stdio.h>
+#endif
+#include "ip_conntrack_helper_h323_asn1.h"
+
+/* Trace Flag */
+#ifndef H323_TRACE
+#define H323_TRACE 0
+#endif
+
+#if H323_TRACE
+#define TAB_SIZE 4
+#define IFTHEN(cond, act) if(cond){act;}
+#ifdef __KERNEL__
+#define PRINT printk
+#else
+#define PRINT printf
+#endif
+#define FNAME(name) name,
+#else
+#define IFTHEN(cond, act)
+#define PRINT(fmt, args...)
+#define FNAME(name)
+#endif
+
+/* ASN.1 Types */
+#define NUL 0
+#define BOOL 1
+#define OID 2
+#define INT 3
+#define ENUM 4
+#define BITSTR 5
+#define NUMSTR 6
+#define NUMDGT 6
+#define TBCDSTR 6
+#define OCTSTR 7
+#define PRTSTR 7
+#define IA5STR 7
+#define GENSTR 7
+#define BMPSTR 8
+#define SEQ 9
+#define SET 9
+#define SEQOF 10
+#define SETOF 10
+#define CHOICE 11
+
+/* Constraint Types */
+#define FIXD 0
+/* #define BITS 1-8 */
+#define BYTE 9
+#define WORD 10
+#define CONS 11
+#define SEMI 12
+#define UNCO 13
+
+/* ASN.1 Type Attributes */
+#define SKIP 0
+#define STOP 1
+#define DECODE 2
+#define EXT 4
+#define OPEN 8
+#define OPT 16
+
+
+/* ASN.1 Field Structure */
+typedef struct field_t {
+#if H323_TRACE
+	char *name;
+#endif
+	unsigned char type;
+	unsigned char sz;
+	unsigned char lb;
+	unsigned char ub;
+	unsigned short attr;
+	unsigned short offset;
+	struct field_t *fields;
+} field_t;
+
+/* Bit Stream */
+typedef struct {
+	unsigned char *buf;
+	unsigned char *beg;
+	unsigned char *end;
+	unsigned char *cur;
+	unsigned bit;
+} bitstr_t;
+
+/* Tool Functions */
+#define INC_BIT(bs) if((++bs->bit)>7){bs->cur++;bs->bit=0;}
+#define INC_BITS(bs,b) if((bs->bit+=b)>7){bs->cur+=bs->bit>>3;bs->bit&=7;}
+#define BYTE_ALIGN(bs) if(bs->bit){bs->cur++;bs->bit=0;}
+#define CHECK_BOUND(bs,n) if(bs->cur+(n)>bs->end)return(H323_ERROR_BOUND)
+static unsigned get_len(bitstr_t * bs);
+static unsigned get_bit(bitstr_t * bs);
+static unsigned get_bits(bitstr_t * bs, unsigned b);
+static unsigned get_bitmap(bitstr_t * bs, unsigned b);
+static unsigned get_uint(bitstr_t * bs, int b);
+
+/* Decoder Functions */
+static int decode_nul(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_bool(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_oid(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_int(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_enum(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_bitstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_numstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_octstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_bmpstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_seq(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_seqof(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_choice(bitstr_t * bs, field_t * f, char *base, int level);
+
+/* Decoder Functions Vector */
+typedef int (*decoder_t) (bitstr_t *, field_t *, char *, int);
+static decoder_t Decoders[] = {
+	decode_nul,
+	decode_bool,
+	decode_oid,
+	decode_int,
+	decode_enum,
+	decode_bitstr,
+	decode_numstr,
+	decode_octstr,
+	decode_bmpstr,
+	decode_seq,
+	decode_seqof,
+	decode_choice,
+};
+
+/****************************************************************************
+ * H.323 Types
+ ****************************************************************************/
+#include "ip_conntrack_helper_h323_types.c"
+
+/****************************************************************************
+ * Functions
+ ****************************************************************************/
+/* Assume bs is aligned && v < 16384 */
+unsigned get_len(bitstr_t * bs)
+{
+	unsigned v;
+
+	v = *bs->cur++;
+
+	if (v & 0x80) {
+		v &= 0x3f;
+		v <<= 8;
+		v += *bs->cur++;
+	}
+
+	return v;
+}
+
+/****************************************************************************/
+unsigned get_bit(bitstr_t * bs)
+{
+	unsigned b = (*bs->cur) & (0x80 >> bs->bit);
+
+	INC_BIT(bs);
+
+	return b;
+}
+
+/****************************************************************************/
+/* Assume b <= 8 */
+unsigned get_bits(bitstr_t * bs, unsigned b)
+{
+	unsigned v, l;
+
+	v = (*bs->cur) & (0xffU >> bs->bit);
+	l = b + bs->bit;
+
+	if (l < 8) {
+		v >>= 8 - l;
+		bs->bit = l;
+	} else if (l == 8) {
+		bs->cur++;
+		bs->bit = 0;
+	} else {		/* l > 8 */
+
+		v <<= 8;
+		v += *(++bs->cur);
+		v >>= 16 - l;
+		bs->bit = l - 8;
+	}
+
+	return v;
+}
+
+/****************************************************************************/
+/* Assume b <= 32 */
+unsigned get_bitmap(bitstr_t * bs, unsigned b)
+{
+	unsigned v, l, shift, bytes;
+
+	if (!b)
+		return 0;
+
+	l = bs->bit + b;
+
+	if (l < 8) {
+		v = (unsigned) (*bs->cur) << (bs->bit + 24);
+		bs->bit = l;
+	} else if (l == 8) {
+		v = (unsigned) (*bs->cur++) << (bs->bit + 24);
+		bs->bit = 0;
+	} else {
+		for (bytes = l >> 3, shift = 24, v = 0; bytes;
+		     bytes--, shift -= 8)
+			v |= (unsigned) (*bs->cur++) << shift;
+
+		if (l < 32) {
+			v |= (unsigned) (*bs->cur) << shift;
+			v <<= bs->bit;
+		} else if (l > 32) {
+			v <<= bs->bit;
+			v |= (*bs->cur) >> (8 - bs->bit);
+		}
+
+		bs->bit = l & 0x7;
+	}
+
+	v &= 0xffffffff << (32 - b);
+
+	return v;
+}
+
+/****************************************************************************
+ * Assume bs is aligned and sizeof(unsigned int) == 4
+ ****************************************************************************/
+unsigned get_uint(bitstr_t * bs, int b)
+{
+	unsigned v = 0;
+
+	switch (b) {
+	case 4:
+		v |= *bs->cur++;
+		v <<= 8;
+	case 3:
+		v |= *bs->cur++;
+		v <<= 8;
+	case 2:
+		v |= *bs->cur++;
+		v <<= 8;
+	case 1:
+		v |= *bs->cur++;
+		break;
+	}
+	return v;
+}
+
+/****************************************************************************/
+int decode_nul(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_bool(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	INC_BIT(bs);
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_oid(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	int len;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	BYTE_ALIGN(bs);
+	CHECK_BOUND(bs, 1);
+	len = *bs->cur++;
+	bs->cur += len;
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_int(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned len;
+
+	PRINT("%*.s%s", level * TAB_SIZE, " ", f->name);
+
+	switch (f->sz) {
+	case BYTE:		/* Range == 256 */
+		BYTE_ALIGN(bs);
+		bs->cur++;
+		break;
+	case WORD:		/* 257 <= Range <= 64K */
+		BYTE_ALIGN(bs);
+		bs->cur += 2;
+		break;
+	case CONS:		/* 64K < Range < 4G */
+		len = get_bits(bs, 2) + 1;
+		BYTE_ALIGN(bs);
+		if (base && (f->attr & DECODE)) {	/* timeToLive */
+			unsigned v = get_uint(bs, len) + f->lb;
+			PRINT(" = %u", v);
+			*((unsigned *) (base + f->offset)) = v;
+		}
+		bs->cur += len;
+		break;
+	case UNCO:
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 2);
+		len = get_len(bs);
+		bs->cur += len;
+		break;
+	default:		/* 2 <= Range <= 255 */
+		INC_BITS(bs, f->sz);
+		break;
+	}
+
+	PRINT("\n");
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_enum(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	if ((f->attr & EXT) && get_bit(bs)) {
+		INC_BITS(bs, 7);
+	} else {
+		INC_BITS(bs, f->sz);
+	}
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_bitstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned len;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	BYTE_ALIGN(bs);
+	switch (f->sz) {
+	case FIXD:		/* fixed length > 16 */
+		len = f->lb;
+		break;
+	case WORD:		/* 2-byte length */
+		CHECK_BOUND(bs, 2);
+		len = (*bs->cur++) << 8;
+		len += (*bs->cur++) + f->lb;
+		break;
+	case SEMI:
+		CHECK_BOUND(bs, 2);
+		len = get_len(bs);
+		break;
+	default:
+		len = 0;
+		break;
+	}
+
+	bs->cur += len >> 3;
+	bs->bit = len & 7;
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_numstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned len;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	/* 2 <= Range <= 255 */
+	len = get_bits(bs, f->sz) + f->lb;
+
+	BYTE_ALIGN(bs);
+	INC_BITS(bs, (len << 2));
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_octstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned len;
+
+	PRINT("%*.s%s", level * TAB_SIZE, " ", f->name);
+
+	switch (f->sz) {
+	case FIXD:		/* Range == 1 */
+		if (f->lb > 2) {
+			BYTE_ALIGN(bs);
+			if (base && (f->attr & DECODE)) {
+				/* The IP Address */
+				IFTHEN(f->lb == 4,
+				       PRINT(" = %d.%d.%d.%d:%d",
+					     bs->cur[0], bs->cur[1],
+					     bs->cur[2], bs->cur[3],
+					     bs->cur[4] * 256 + bs->cur[5]));
+				*((unsigned *) (base + f->offset)) =
+				    bs->cur - bs->buf;
+			}
+		}
+		len = f->lb;
+		break;
+	case BYTE:		/* Range == 256 */
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 1);
+		len = (*bs->cur++) + f->lb;
+		break;
+	case SEMI:
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 2);
+		len = get_len(bs) + f->lb;
+		break;
+	default:		/* 2 <= Range <= 255 */
+		len = get_bits(bs, f->sz) + f->lb;
+		BYTE_ALIGN(bs);
+		break;
+	}
+
+	bs->cur += len;
+
+	PRINT("\n");
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_bmpstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned len;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	switch (f->sz) {
+	case BYTE:		/* Range == 256 */
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 1);
+		len = (*bs->cur++) + f->lb;
+		break;
+	default:		/* 2 <= Range <= 255 */
+		len = get_bits(bs, f->sz) + f->lb;
+		BYTE_ALIGN(bs);
+		break;
+	}
+
+	bs->cur += len << 1;
+
+	CHECK_BOUND(bs, 0);
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_seq(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned ext, bmp, i, opt, len = 0, bmp2, bmp2_len;
+	int err;
+	field_t *son;
+	unsigned char *beg = NULL;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	/* Decode? */
+	base = (base && (f->attr & DECODE)) ? base + f->offset : NULL;
+
+	/* Extensible? */
+	ext = (f->attr & EXT) ? get_bit(bs) : 0;
+
+	/* Get fields bitmap */
+	bmp = get_bitmap(bs, f->sz);
+	if (base)
+		*(unsigned *) base = bmp;
+
+	/* Decode the root components */
+	for (i = opt = 0, son = f->fields; i < f->lb; i++, son++) {
+		if (son->attr & STOP) {
+			PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+			      son->name);
+			return H323_ERROR_STOP;
+		}
+
+		if (son->attr & OPT) {	/* Optional component */
+			if (!((0x80000000U >> (opt++)) & bmp))	/* Not exist */
+				continue;
+		}
+
+		/* Decode */
+		if (son->attr & OPEN) {	/* Open field */
+			CHECK_BOUND(bs, 2);
+			len = get_len(bs);
+			CHECK_BOUND(bs, len);
+			if (!base) {
+				PRINT("%*.s%s\n", (level + 1) * TAB_SIZE,
+				      " ", son->name);
+				bs->cur += len;
+				continue;
+			}
+			beg = bs->cur;
+
+			/* Decode */
+			if ((err = (Decoders[son->type]) (bs, son, base,
+							  level + 1)) >
+			    H323_ERROR_STOP)
+				return err;
+
+			bs->cur = beg + len;
+			bs->bit = 0;
+		} else if ((err = (Decoders[son->type]) (bs, son, base,
+							 level + 1)))
+			return err;
+	}
+
+	/* No extension? */
+	if (!ext)
+		return H323_ERROR_NONE;
+
+	/* Get the extension bitmap */
+	bmp2_len = get_bits(bs, 7) + 1;
+	CHECK_BOUND(bs, (bmp2_len + 7) >> 3);
+	bmp2 = get_bitmap(bs, bmp2_len);
+	bmp |= bmp2 >> f->sz;
+	if (base)
+		*(unsigned *) base = bmp;
+	BYTE_ALIGN(bs);
+
+	/* Decode the extension components */
+	for (opt = 0; opt < bmp2_len; opt++, i++, son++) {
+		if (son->attr & STOP) {
+			PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+			      son->name);
+			return H323_ERROR_STOP;
+		}
+
+		if (!((0x80000000 >> opt) & bmp2))	/* Not present */
+			continue;
+
+		/* Check Range */
+		if (i >= f->ub) {	/* Newer Version? */
+			CHECK_BOUND(bs, 2);
+			len = get_len(bs);
+			CHECK_BOUND(bs, len);
+			bs->cur += len;
+			continue;
+		}
+
+		CHECK_BOUND(bs, 2);
+		len = get_len(bs);
+		CHECK_BOUND(bs, len);
+		if (!base || !(son->attr & DECODE)) {
+			PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+			      son->name);
+			bs->cur += len;
+			continue;
+		}
+		beg = bs->cur;
+
+		if ((err = (Decoders[son->type]) (bs, son, base,
+						  level + 1)) >
+		    H323_ERROR_STOP)
+			return err;
+
+		bs->cur = beg + len;
+		bs->bit = 0;
+	}
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_seqof(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned count, effective_count = 0, i, len = 0;
+	int err;
+	field_t *son;
+	unsigned char *beg = NULL;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	/* Decode? */
+	base = (base && (f->attr & DECODE)) ? base + f->offset : NULL;
+
+	/* Decode item count */
+	switch (f->sz) {
+	case BYTE:
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 1);
+		count = *bs->cur++;
+		break;
+	case WORD:
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 2);
+		count = *bs->cur++;
+		count <<= 8;
+		count = *bs->cur++;
+		break;
+	case SEMI:
+		BYTE_ALIGN(bs);
+		CHECK_BOUND(bs, 2);
+		count = get_len(bs);
+		break;
+	default:
+		count = get_bits(bs, f->sz);
+		break;
+	}
+	count += f->lb;
+
+	/* Write Count */
+	if (base) {
+		effective_count = count > f->ub ? f->ub : count;
+		*(unsigned *) base = effective_count;
+		base += sizeof(unsigned);
+	}
+
+	/* Decode nested field */
+	son = f->fields;
+	if (base)
+		base -= son->offset;
+	for (i = 0; i < count; i++) {
+		if (son->attr & OPEN) {
+			BYTE_ALIGN(bs);
+			len = get_len(bs);
+			CHECK_BOUND(bs, len);
+			if (!base || !(son->attr & DECODE)) {
+				PRINT("%*.s%s\n", (level + 1) * TAB_SIZE,
+				      " ", son->name);
+				bs->cur += len;
+				continue;
+			}
+			beg = bs->cur;
+
+			if ((err = (Decoders[son->type]) (bs, son,
+							  i <
+							  effective_count ?
+							  base : NULL,
+							  level + 1)) >
+			    H323_ERROR_STOP)
+				return err;
+
+			bs->cur = beg + len;
+			bs->bit = 0;
+		} else
+		    if ((err = (Decoders[son->type]) (bs, son,
+						      i < effective_count ?
+						      base : NULL,
+						      level + 1)))
+			return err;
+
+		if (base)
+			base += son->offset;
+	}
+
+	return H323_ERROR_NONE;
+}
+
+
+/****************************************************************************/
+int decode_choice(bitstr_t * bs, field_t * f, char *base, int level)
+{
+	unsigned type, ext, len = 0;
+	int err;
+	field_t *son;
+	unsigned char *beg = NULL;
+
+	PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+	/* Decode? */
+	base = (base && (f->attr & DECODE)) ? base + f->offset : NULL;
+
+	/* Decode the choice index number */
+	if ((f->attr & EXT) && get_bit(bs)) {
+		ext = 1;
+		type = get_bits(bs, 7) + f->lb;
+	} else {
+		ext = 0;
+		type = get_bits(bs, f->sz);
+	}
+
+	/* Check Range */
+	if (type >= f->ub) {	/* Newer version? */
+		BYTE_ALIGN(bs);
+		len = get_len(bs);
+		CHECK_BOUND(bs, len);
+		bs->cur += len;
+		return H323_ERROR_NONE;
+	}
+
+	/* Write Type */
+	if (base)
+		*(unsigned *) base = type;
+
+	/* Transfer to son level */
+	son = &f->fields[type];
+	if (son->attr & STOP) {
+		PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ", son->name);
+		return H323_ERROR_STOP;
+	}
+
+	if (ext || (son->attr & OPEN)) {
+		BYTE_ALIGN(bs);
+		len = get_len(bs);
+		CHECK_BOUND(bs, len);
+		if (!base || !(son->attr & DECODE)) {
+			PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+			      son->name);
+			bs->cur += len;
+			return H323_ERROR_NONE;
+		}
+		beg = bs->cur;
+
+		if ((err = (Decoders[son->type]) (bs, son, base, level + 1)) >
+		    H323_ERROR_STOP)
+			return err;
+
+		bs->cur = beg + len;
+		bs->bit = 0;
+	} else if ((err = (Decoders[son->type]) (bs, son, base, level + 1)))
+		return err;
+
+	return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int DecodeRasMessage(unsigned char *buf, size_t sz, RasMessage * ras)
+{
+	static field_t ras_message = {
+		FNAME("RasMessage") CHOICE, 5, 24, 32, DECODE | EXT,
+		0, _RasMessage
+	};
+	bitstr_t bs;
+
+	bs.buf = bs.beg = bs.cur = buf;
+	bs.end = buf + sz;
+	bs.bit = 0;
+
+	return decode_choice(&bs, &ras_message, (char *) ras, 0);
+}
+
+/****************************************************************************/
+static int DecodeH323_UserInformation(unsigned char *buf, unsigned char *beg,
+				      size_t sz, H323_UserInformation * uuie)
+{
+	static field_t h323_userinformation = {
+		FNAME("H323-UserInformation") SEQ, 1, 2, 2, DECODE | EXT,
+		0, _H323_UserInformation
+	};
+	bitstr_t bs;
+
+	bs.buf = buf;
+	bs.beg = bs.cur = beg;
+	bs.end = beg + sz;
+	bs.bit = 0;
+
+	return decode_seq(&bs, &h323_userinformation, (char *) uuie, 0);
+}
+
+/****************************************************************************/
+int DecodeMultimediaSystemControlMessage(unsigned char *buf, size_t sz,
+					 MultimediaSystemControlMessage *
+					 mscm)
+{
+	static field_t multimediasystemcontrolmessage = {
+		FNAME("MultimediaSystemControlMessage") CHOICE, 2, 4, 4,
+		DECODE | EXT, 0, _MultimediaSystemControlMessage
+	};
+	bitstr_t bs;
+
+	bs.buf = bs.beg = bs.cur = buf;
+	bs.end = buf + sz;
+	bs.bit = 0;
+
+	return decode_choice(&bs, &multimediasystemcontrolmessage,
+			     (char *) mscm, 0);
+}
+
+/****************************************************************************/
+int DecodeQ931(unsigned char *buf, size_t sz, Q931 * q931)
+{
+	unsigned char *p = buf;
+	int len;
+
+	if (!p || sz < 1)
+		return H323_ERROR_BOUND;
+
+	/* Protocol Discriminator */
+	if (*p != 0x08) {
+		PRINT("Unknown Protocol Discriminator\n");
+		return H323_ERROR_RANGE;
+	}
+	p++;
+	sz--;
+
+	/* CallReferenceValue */
+	if (sz < 1)
+		return H323_ERROR_BOUND;
+	len = *p++;
+	sz--;
+	if (sz < len)
+		return H323_ERROR_BOUND;
+	p += len;
+	sz -= len;
+
+	/* Message Type */
+	if (sz < 1)
+		return H323_ERROR_BOUND;
+	q931->MessageType = *p++;
+	PRINT("MessageType = %02X\n", q931->MessageType);
+	if (*p & 0x80) {
+		p++;
+		sz--;
+	}
+
+	/* Decode Information Elements */
+	while (sz > 0) {
+		if (*p == 0x7e) {	/* UserUserIE */
+			if (sz < 3)
+				break;
+			p++;
+			len = *p++ << 8;
+			len |= *p++;
+			sz -= 3;
+			if (sz < len)
+				break;
+			p++;
+			len--;
+			return DecodeH323_UserInformation(buf, p, len,
+							  &q931->UUIE);
+		}
+		p++;
+		sz--;
+		if (sz < 1)
+			break;
+		len = *p++;
+		if (sz < len)
+			break;
+		p += len;
+		sz -= len;
+	}
+
+	PRINT("Q.931 UUIE not found\n");
+
+	return H323_ERROR_BOUND;
+}
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.h b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.h
new file mode 100644
index 0000000..0bd8280
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+ * ip_conntrack_helper_h323_asn1.h - BER and PER decoding library for H.323
+ * 			      	     conntrack/NAT module.
+ *
+ * Copyright (c) 2006 by Jing Min Zhao <zhaojingmin@hotmail.com>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ *
+ * This library is based on H.225 version 4, H.235 version 2 and H.245
+ * version 7. It is extremely optimized to decode only the absolutely
+ * necessary objects in a signal for Linux kernel NAT module use, so don't
+ * expect it to be a full ASN.1 library.
+ *
+ * Features:
+ *
+ * 1. Small. The total size of code plus data is less than 20 KB (IA32).
+ * 2. Fast. Decoding Netmeeting's Setup signal 1 million times on a PIII 866
+ *    takes only 3.9 seconds.
+ * 3. No memory allocation. It uses a static object. No need to initialize or
+ *    cleanup.
+ * 4. Thread safe.
+ * 5. Support embedded architectures that has no misaligned memory access
+ *    support.
+ *
+ * Limitations:
+ *
+ * 1. At most 30 faststart entries. Actually this is limited by ethernet's MTU.
+ *    If a Setup signal contains more than 30 faststart, the packet size will
+ *    very likely exceed the MTU size, then the TPKT will be fragmented. I
+ *    don't know how to handle this in a Netfilter module. Anybody can help?
+ *    Although I think 30 is enough for most of the cases.
+ * 2. IPv4 addresses only.
+ *
+ ****************************************************************************/
+
+#ifndef _IP_CONNTRACK_HELPER_H323_ASN1_H_
+#define _IP_CONNTRACK_HELPER_H323_ASN1_H_
+
+/*****************************************************************************
+ * H.323 Types
+ ****************************************************************************/
+#include "ip_conntrack_helper_h323_types.h"
+
+typedef struct {
+	enum {
+		Q931_NationalEscape = 0x00,
+		Q931_Alerting = 0x01,
+		Q931_CallProceeding = 0x02,
+		Q931_Connect = 0x07,
+		Q931_ConnectAck = 0x0F,
+		Q931_Progress = 0x03,
+		Q931_Setup = 0x05,
+		Q931_SetupAck = 0x0D,
+		Q931_Resume = 0x26,
+		Q931_ResumeAck = 0x2E,
+		Q931_ResumeReject = 0x22,
+		Q931_Suspend = 0x25,
+		Q931_SuspendAck = 0x2D,
+		Q931_SuspendReject = 0x21,
+		Q931_UserInformation = 0x20,
+		Q931_Disconnect = 0x45,
+		Q931_Release = 0x4D,
+		Q931_ReleaseComplete = 0x5A,
+		Q931_Restart = 0x46,
+		Q931_RestartAck = 0x4E,
+		Q931_Segment = 0x60,
+		Q931_CongestionCtrl = 0x79,
+		Q931_Information = 0x7B,
+		Q931_Notify = 0x6E,
+		Q931_Status = 0x7D,
+		Q931_StatusEnquiry = 0x75,
+		Q931_Facility = 0x62
+	} MessageType;
+	H323_UserInformation UUIE;
+} Q931;
+
+/*****************************************************************************
+ * Decode Functions Return Codes
+ ****************************************************************************/
+
+#define H323_ERROR_NONE 0	/* Decoded successfully */
+#define H323_ERROR_STOP 1	/* Decoding stopped, not really an error */
+#define H323_ERROR_BOUND -1
+#define H323_ERROR_RANGE -2
+
+
+/*****************************************************************************
+ * Decode Functions
+ ****************************************************************************/
+
+int DecodeRasMessage(unsigned char *buf, size_t sz, RasMessage * ras);
+int DecodeQ931(unsigned char *buf, size_t sz, Q931 * q931);
+int DecodeMultimediaSystemControlMessage(unsigned char *buf, size_t sz,
+					 MultimediaSystemControlMessage *
+					 mscm);
+
+#endif
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_types.c b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.c
new file mode 100644
index 0000000..022c47b
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.c
@@ -0,0 +1,1926 @@
+/* Generated by Jing Min Zhao's ASN.1 parser, Mar 15 2006
+ *
+ * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ */
+
+static field_t _TransportAddress_ipAddress[] = {	/* SEQUENCE */
+	{FNAME("ip") OCTSTR, FIXD, 4, 0, DECODE,
+	 offsetof(TransportAddress_ipAddress, ip), NULL},
+	{FNAME("port") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ipSourceRoute_route[] = {	/* SEQUENCE OF */
+	{FNAME("item") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ipSourceRoute_routing[] = {	/* CHOICE */
+	{FNAME("strict") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("loose") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ipSourceRoute[] = {	/* SEQUENCE */
+	{FNAME("ip") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+	{FNAME("port") INT, WORD, 0, 0, SKIP, 0, NULL},
+	{FNAME("route") SEQOF, SEMI, 0, 0, SKIP, 0,
+	 _TransportAddress_ipSourceRoute_route},
+	{FNAME("routing") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+	 _TransportAddress_ipSourceRoute_routing},
+};
+
+static field_t _TransportAddress_ipxAddress[] = {	/* SEQUENCE */
+	{FNAME("node") OCTSTR, FIXD, 6, 0, SKIP, 0, NULL},
+	{FNAME("netnum") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+	{FNAME("port") OCTSTR, FIXD, 2, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ip6Address[] = {	/* SEQUENCE */
+	{FNAME("ip") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("port") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H221NonStandard[] = {	/* SEQUENCE */
+	{FNAME("t35CountryCode") INT, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("t35Extension") INT, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("manufacturerCode") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _NonStandardIdentifier[] = {	/* CHOICE */
+	{FNAME("object") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("h221NonStandard") SEQ, 0, 3, 3, SKIP | EXT, 0,
+	 _H221NonStandard},
+};
+
+static field_t _NonStandardParameter[] = {	/* SEQUENCE */
+	{FNAME("nonStandardIdentifier") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+	 _NonStandardIdentifier},
+	{FNAME("data") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress[] = {	/* CHOICE */
+	{FNAME("ipAddress") SEQ, 0, 2, 2, DECODE,
+	 offsetof(TransportAddress, ipAddress), _TransportAddress_ipAddress},
+	{FNAME("ipSourceRoute") SEQ, 0, 4, 4, SKIP | EXT, 0,
+	 _TransportAddress_ipSourceRoute},
+	{FNAME("ipxAddress") SEQ, 0, 3, 3, SKIP, 0,
+	 _TransportAddress_ipxAddress},
+	{FNAME("ip6Address") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _TransportAddress_ip6Address},
+	{FNAME("netBios") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("nsap") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardAddress") SEQ, 0, 2, 2, SKIP, 0,
+	 _NonStandardParameter},
+};
+
+static field_t _AliasAddress[] = {	/* CHOICE */
+	{FNAME("dialedDigits") NUMDGT, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("h323-ID") BMPSTR, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("url-ID") IA5STR, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("transportID") CHOICE, 3, 7, 7, SKIP | EXT, 0, NULL},
+	{FNAME("email-ID") IA5STR, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("partyNumber") CHOICE, 3, 5, 5, SKIP | EXT, 0, NULL},
+	{FNAME("mobileUIM") CHOICE, 1, 2, 2, SKIP | EXT, 0, NULL},
+};
+
+static field_t _Setup_UUIE_sourceAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _VendorIdentifier[] = {	/* SEQUENCE */
+	{FNAME("vendor") SEQ, 0, 3, 3, SKIP | EXT, 0, _H221NonStandard},
+	{FNAME("productId") OCTSTR, BYTE, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("versionId") OCTSTR, BYTE, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _GatekeeperInfo[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+};
+
+static field_t _H310Caps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H320Caps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H321Caps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H322Caps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H323Caps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H324Caps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _VoiceCaps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _T120OnlyCaps[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _SupportedProtocols[] = {	/* CHOICE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP, 0,
+	 _NonStandardParameter},
+	{FNAME("h310") SEQ, 1, 1, 3, SKIP | EXT, 0, _H310Caps},
+	{FNAME("h320") SEQ, 1, 1, 3, SKIP | EXT, 0, _H320Caps},
+	{FNAME("h321") SEQ, 1, 1, 3, SKIP | EXT, 0, _H321Caps},
+	{FNAME("h322") SEQ, 1, 1, 3, SKIP | EXT, 0, _H322Caps},
+	{FNAME("h323") SEQ, 1, 1, 3, SKIP | EXT, 0, _H323Caps},
+	{FNAME("h324") SEQ, 1, 1, 3, SKIP | EXT, 0, _H324Caps},
+	{FNAME("voice") SEQ, 1, 1, 3, SKIP | EXT, 0, _VoiceCaps},
+	{FNAME("t120-only") SEQ, 1, 1, 3, SKIP | EXT, 0, _T120OnlyCaps},
+	{FNAME("nonStandardProtocol") SEQ, 2, 3, 3, SKIP | EXT, 0, NULL},
+	{FNAME("t38FaxAnnexbOnly") SEQ, 2, 5, 5, SKIP | EXT, 0, NULL},
+};
+
+static field_t _GatewayInfo_protocol[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 4, 9, 11, SKIP | EXT, 0, _SupportedProtocols},
+};
+
+static field_t _GatewayInfo[] = {	/* SEQUENCE */
+	{FNAME("protocol") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _GatewayInfo_protocol},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+};
+
+static field_t _McuInfo[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("protocol") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _TerminalInfo[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+};
+
+static field_t _EndpointType[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("vendor") SEQ, 2, 3, 3, SKIP | EXT | OPT, 0,
+	 _VendorIdentifier},
+	{FNAME("gatekeeper") SEQ, 1, 1, 1, SKIP | EXT | OPT, 0,
+	 _GatekeeperInfo},
+	{FNAME("gateway") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, _GatewayInfo},
+	{FNAME("mcu") SEQ, 1, 1, 2, SKIP | EXT | OPT, 0, _McuInfo},
+	{FNAME("terminal") SEQ, 1, 1, 1, SKIP | EXT | OPT, 0, _TerminalInfo},
+	{FNAME("mc") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("undefinedNode") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("set") BITSTR, FIXD, 32, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedTunnelledProtocols") SEQOF, SEMI, 0, 0, SKIP | OPT,
+	 0, NULL},
+};
+
+static field_t _Setup_UUIE_destinationAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _Setup_UUIE_destExtraCallInfo[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _Setup_UUIE_destExtraCRV[] = {	/* SEQUENCE OF */
+	{FNAME("item") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _Setup_UUIE_conferenceGoal[] = {	/* CHOICE */
+	{FNAME("create") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("join") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("invite") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("capability-negotiation") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("callIndependentSupplementaryService") NUL, FIXD, 0, 0, SKIP,
+	 0, NULL},
+};
+
+static field_t _Q954Details[] = {	/* SEQUENCE */
+	{FNAME("conferenceCalling") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("threePartyService") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _QseriesOptions[] = {	/* SEQUENCE */
+	{FNAME("q932Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q951Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q952Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q953Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q955Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q956Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q957Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("q954Info") SEQ, 0, 2, 2, SKIP | EXT, 0, _Q954Details},
+};
+
+static field_t _CallType[] = {	/* CHOICE */
+	{FNAME("pointToPoint") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("oneToN") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("nToOne") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("nToN") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H245_NonStandardIdentifier_h221NonStandard[] = {	/* SEQUENCE */
+	{FNAME("t35CountryCode") INT, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("t35Extension") INT, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("manufacturerCode") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H245_NonStandardIdentifier[] = {	/* CHOICE */
+	{FNAME("object") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("h221NonStandard") SEQ, 0, 3, 3, SKIP, 0,
+	 _H245_NonStandardIdentifier_h221NonStandard},
+};
+
+static field_t _H245_NonStandardParameter[] = {	/* SEQUENCE */
+	{FNAME("nonStandardIdentifier") CHOICE, 1, 2, 2, SKIP, 0,
+	 _H245_NonStandardIdentifier},
+	{FNAME("data") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H261VideoCapability[] = {	/* SEQUENCE */
+	{FNAME("qcifMPI") INT, 2, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cifMPI") INT, 2, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("temporalSpatialTradeOffCapability") BOOL, FIXD, 0, 0, SKIP, 0,
+	 NULL},
+	{FNAME("maxBitRate") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("stillImageTransmission") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("videoBadMBsCap") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H262VideoCapability[] = {	/* SEQUENCE */
+	{FNAME("profileAndLevel-SPatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-MPatLL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-MPatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-MPatH-14") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-MPatHL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-SNRatLL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-SNRatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-SpatialatH-14") BOOL, FIXD, 0, 0, SKIP, 0,
+	 NULL},
+	{FNAME("profileAndLevel-HPatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-HPatH-14") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("profileAndLevel-HPatHL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("videoBitRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("vbvBufferSize") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("samplesPerLine") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("linesPerFrame") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("framesPerSecond") INT, 4, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("luminanceSampleRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("videoBadMBsCap") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H263VideoCapability[] = {	/* SEQUENCE */
+	{FNAME("sqcifMPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("qcifMPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cifMPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cif4MPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cif16MPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("maxBitRate") INT, CONS, 1, 0, SKIP, 0, NULL},
+	{FNAME("unrestrictedVector") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("arithmeticCoding") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("advancedPrediction") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("pbFrames") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("temporalSpatialTradeOffCapability") BOOL, FIXD, 0, 0, SKIP, 0,
+	 NULL},
+	{FNAME("hrd-B") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("bppMaxKb") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("slowSqcifMPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("slowQcifMPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("slowCifMPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("slowCif4MPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("slowCif16MPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("errorCompensation") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("enhancementLayerInfo") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("h263Options") SEQ, 5, 29, 31, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _IS11172VideoCapability[] = {	/* SEQUENCE */
+	{FNAME("constrainedBitstream") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("videoBitRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("vbvBufferSize") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("samplesPerLine") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("linesPerFrame") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("pictureRate") INT, 4, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("luminanceSampleRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("videoBadMBsCap") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _VideoCapability[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("h261VideoCapability") SEQ, 2, 5, 6, SKIP | EXT, 0,
+	 _H261VideoCapability},
+	{FNAME("h262VideoCapability") SEQ, 6, 17, 18, SKIP | EXT, 0,
+	 _H262VideoCapability},
+	{FNAME("h263VideoCapability") SEQ, 7, 13, 21, SKIP | EXT, 0,
+	 _H263VideoCapability},
+	{FNAME("is11172VideoCapability") SEQ, 6, 7, 8, SKIP | EXT, 0,
+	 _IS11172VideoCapability},
+	{FNAME("genericVideoCapability") SEQ, 5, 6, 6, SKIP | EXT, 0, NULL},
+};
+
+static field_t _AudioCapability_g7231[] = {	/* SEQUENCE */
+	{FNAME("maxAl-sduAudioFrames") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("silenceSuppression") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _IS11172AudioCapability[] = {	/* SEQUENCE */
+	{FNAME("audioLayer1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioLayer2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioLayer3") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling32k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling44k1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling48k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("singleChannel") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("twoChannels") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("bitRate") INT, WORD, 1, 0, SKIP, 0, NULL},
+};
+
+static field_t _IS13818AudioCapability[] = {	/* SEQUENCE */
+	{FNAME("audioLayer1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioLayer2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioLayer3") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling16k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling22k05") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling24k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling32k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling44k1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("audioSampling48k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("singleChannel") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("twoChannels") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("threeChannels2-1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("threeChannels3-0") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fourChannels2-0-2-0") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fourChannels2-2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fourChannels3-1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fiveChannels3-0-2-0") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fiveChannels3-2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("lowFrequencyEnhancement") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("multilingual") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("bitRate") INT, WORD, 1, 0, SKIP, 0, NULL},
+};
+
+static field_t _AudioCapability[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("g711Alaw64k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g711Alaw56k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g711Ulaw64k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g711Ulaw56k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g722-64k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g722-56k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g722-48k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g7231") SEQ, 0, 2, 2, SKIP, 0, _AudioCapability_g7231},
+	{FNAME("g728") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g729") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g729AnnexA") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("is11172AudioCapability") SEQ, 0, 9, 9, SKIP | EXT, 0,
+	 _IS11172AudioCapability},
+	{FNAME("is13818AudioCapability") SEQ, 0, 21, 21, SKIP | EXT, 0,
+	 _IS13818AudioCapability},
+	{FNAME("g729wAnnexB") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g729AnnexAwAnnexB") INT, BYTE, 1, 0, SKIP, 0, NULL},
+	{FNAME("g7231AnnexCCapability") SEQ, 1, 3, 3, SKIP | EXT, 0, NULL},
+	{FNAME("gsmFullRate") SEQ, 0, 3, 3, SKIP | EXT, 0, NULL},
+	{FNAME("gsmHalfRate") SEQ, 0, 3, 3, SKIP | EXT, 0, NULL},
+	{FNAME("gsmEnhancedFullRate") SEQ, 0, 3, 3, SKIP | EXT, 0, NULL},
+	{FNAME("genericAudioCapability") SEQ, 5, 6, 6, SKIP | EXT, 0, NULL},
+	{FNAME("g729Extensions") SEQ, 1, 8, 8, SKIP | EXT, 0, NULL},
+};
+
+static field_t _DataProtocolCapability[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("v14buffered") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("v42lapm") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("hdlcFrameTunnelling") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("h310SeparateVCStack") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("h310SingleVCStack") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("transparent") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("segmentationAndReassembly") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("hdlcFrameTunnelingwSAR") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("v120") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("separateLANStack") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("v76wCompression") CHOICE, 2, 3, 3, SKIP | EXT, 0, NULL},
+	{FNAME("tcp") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("udp") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _T84Profile_t84Restricted[] = {	/* SEQUENCE */
+	{FNAME("qcif") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("cif") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("ccir601Seq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("ccir601Prog") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("hdtvSeq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("hdtvProg") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("g3FacsMH200x100") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("g3FacsMH200x200") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("g4FacsMMR200x100") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("g4FacsMMR200x200") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("jbig200x200Seq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("jbig200x200Prog") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("jbig300x300Seq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("jbig300x300Prog") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("digPhotoLow") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("digPhotoMedSeq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("digPhotoMedProg") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("digPhotoHighSeq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("digPhotoHighProg") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _T84Profile[] = {	/* CHOICE */
+	{FNAME("t84Unrestricted") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("t84Restricted") SEQ, 0, 19, 19, SKIP | EXT, 0,
+	 _T84Profile_t84Restricted},
+};
+
+static field_t _DataApplicationCapability_application_t84[] = {	/* SEQUENCE */
+	{FNAME("t84Protocol") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("t84Profile") CHOICE, 1, 2, 2, SKIP, 0, _T84Profile},
+};
+
+static field_t _DataApplicationCapability_application_nlpid[] = {	/* SEQUENCE */
+	{FNAME("nlpidProtocol") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("nlpidData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _DataApplicationCapability_application[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("t120") CHOICE, 3, 7, 14, DECODE | EXT,
+	 offsetof(DataApplicationCapability_application, t120),
+	 _DataProtocolCapability},
+	{FNAME("dsm-cc") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("userData") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("t84") SEQ, 0, 2, 2, SKIP, 0,
+	 _DataApplicationCapability_application_t84},
+	{FNAME("t434") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("h224") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("nlpid") SEQ, 0, 2, 2, SKIP, 0,
+	 _DataApplicationCapability_application_nlpid},
+	{FNAME("dsvdControl") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("h222DataPartitioning") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+	 _DataProtocolCapability},
+	{FNAME("t30fax") CHOICE, 3, 7, 14, SKIP | EXT, 0, NULL},
+	{FNAME("t140") CHOICE, 3, 7, 14, SKIP | EXT, 0, NULL},
+	{FNAME("t38fax") SEQ, 0, 2, 2, SKIP, 0, NULL},
+	{FNAME("genericDataCapability") SEQ, 5, 6, 6, SKIP | EXT, 0, NULL},
+};
+
+static field_t _DataApplicationCapability[] = {	/* SEQUENCE */
+	{FNAME("application") CHOICE, 4, 10, 14, DECODE | EXT,
+	 offsetof(DataApplicationCapability, application),
+	 _DataApplicationCapability_application},
+	{FNAME("maxBitRate") INT, CONS, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _EncryptionMode[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("h233Encryption") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _DataType[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("nullData") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("videoData") CHOICE, 3, 5, 6, SKIP | EXT, 0, _VideoCapability},
+	{FNAME("audioData") CHOICE, 4, 14, 22, SKIP | EXT, 0,
+	 _AudioCapability},
+	{FNAME("data") SEQ, 0, 2, 2, DECODE | EXT, offsetof(DataType, data),
+	 _DataApplicationCapability},
+	{FNAME("encryptionData") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+	 _EncryptionMode},
+	{FNAME("h235Control") SEQ, 0, 2, 2, SKIP, 0, NULL},
+	{FNAME("h235Media") SEQ, 0, 2, 2, SKIP | EXT, 0, NULL},
+	{FNAME("multiplexedStream") SEQ, 0, 2, 2, SKIP | EXT, 0, NULL},
+};
+
+static field_t _H222LogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("resourceID") INT, WORD, 0, 0, SKIP, 0, NULL},
+	{FNAME("subChannelID") INT, WORD, 0, 0, SKIP, 0, NULL},
+	{FNAME("pcr-pid") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("programDescriptors") OCTSTR, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("streamDescriptors") OCTSTR, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _H223LogicalChannelParameters_adaptationLayerType_al3[] = {	/* SEQUENCE */
+	{FNAME("controlFieldOctets") INT, 2, 0, 0, SKIP, 0, NULL},
+	{FNAME("sendBufferSize") INT, CONS, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H223LogicalChannelParameters_adaptationLayerType[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+	 _H245_NonStandardParameter},
+	{FNAME("al1Framed") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("al1NotFramed") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("al2WithoutSequenceNumbers") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("al2WithSequenceNumbers") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("al3") SEQ, 0, 2, 2, SKIP, 0,
+	 _H223LogicalChannelParameters_adaptationLayerType_al3},
+	{FNAME("al1M") SEQ, 0, 7, 8, SKIP | EXT, 0, NULL},
+	{FNAME("al2M") SEQ, 0, 2, 2, SKIP | EXT, 0, NULL},
+	{FNAME("al3M") SEQ, 0, 5, 6, SKIP | EXT, 0, NULL},
+};
+
+static field_t _H223LogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("adaptationLayerType") CHOICE, 3, 6, 9, SKIP | EXT, 0,
+	 _H223LogicalChannelParameters_adaptationLayerType},
+	{FNAME("segmentableFlag") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CRCLength[] = {	/* CHOICE */
+	{FNAME("crc8bit") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("crc16bit") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("crc32bit") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76HDLCParameters[] = {	/* SEQUENCE */
+	{FNAME("crcLength") CHOICE, 2, 3, 3, SKIP | EXT, 0, _CRCLength},
+	{FNAME("n401") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("loopbackTestProcedure") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters_suspendResume[] = {	/* CHOICE */
+	{FNAME("noSuspendResume") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("suspendResumewAddress") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("suspendResumewoAddress") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters_mode_eRM_recovery[] = {	/* CHOICE */
+	{FNAME("rej") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("sREJ") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("mSREJ") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters_mode_eRM[] = {	/* SEQUENCE */
+	{FNAME("windowSize") INT, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("recovery") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+	 _V76LogicalChannelParameters_mode_eRM_recovery},
+};
+
+static field_t _V76LogicalChannelParameters_mode[] = {	/* CHOICE */
+	{FNAME("eRM") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _V76LogicalChannelParameters_mode_eRM},
+	{FNAME("uNERM") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V75Parameters[] = {	/* SEQUENCE */
+	{FNAME("audioHeaderPresent") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("hdlcParameters") SEQ, 0, 3, 3, SKIP | EXT, 0,
+	 _V76HDLCParameters},
+	{FNAME("suspendResume") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+	 _V76LogicalChannelParameters_suspendResume},
+	{FNAME("uIH") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("mode") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+	 _V76LogicalChannelParameters_mode},
+	{FNAME("v75Parameters") SEQ, 0, 1, 1, SKIP | EXT, 0, _V75Parameters},
+};
+
+static field_t _H2250LogicalChannelParameters_nonStandard[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 0, 2, 2, SKIP, 0, _H245_NonStandardParameter},
+};
+
+static field_t _UnicastAddress_iPAddress[] = {	/* SEQUENCE */
+	{FNAME("network") OCTSTR, FIXD, 4, 0, DECODE,
+	 offsetof(UnicastAddress_iPAddress, network), NULL},
+	{FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPXAddress[] = {	/* SEQUENCE */
+	{FNAME("node") OCTSTR, FIXD, 6, 0, SKIP, 0, NULL},
+	{FNAME("netnum") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+	{FNAME("tsapIdentifier") OCTSTR, FIXD, 2, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iP6Address[] = {	/* SEQUENCE */
+	{FNAME("network") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPSourceRouteAddress_routing[] = {	/* CHOICE */
+	{FNAME("strict") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("loose") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPSourceRouteAddress_route[] = {	/* SEQUENCE OF */
+	{FNAME("item") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPSourceRouteAddress[] = {	/* SEQUENCE */
+	{FNAME("routing") CHOICE, 1, 2, 2, SKIP, 0,
+	 _UnicastAddress_iPSourceRouteAddress_routing},
+	{FNAME("network") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+	{FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+	{FNAME("route") SEQOF, SEMI, 0, 0, SKIP, 0,
+	 _UnicastAddress_iPSourceRouteAddress_route},
+};
+
+static field_t _UnicastAddress[] = {	/* CHOICE */
+	{FNAME("iPAddress") SEQ, 0, 2, 2, DECODE | EXT,
+	 offsetof(UnicastAddress, iPAddress), _UnicastAddress_iPAddress},
+	{FNAME("iPXAddress") SEQ, 0, 3, 3, SKIP | EXT, 0,
+	 _UnicastAddress_iPXAddress},
+	{FNAME("iP6Address") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _UnicastAddress_iP6Address},
+	{FNAME("netBios") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("iPSourceRouteAddress") SEQ, 0, 4, 4, SKIP | EXT, 0,
+	 _UnicastAddress_iPSourceRouteAddress},
+	{FNAME("nsap") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardAddress") SEQ, 0, 2, 2, SKIP, 0, NULL},
+};
+
+static field_t _MulticastAddress_iPAddress[] = {	/* SEQUENCE */
+	{FNAME("network") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+	{FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _MulticastAddress_iP6Address[] = {	/* SEQUENCE */
+	{FNAME("network") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _MulticastAddress[] = {	/* CHOICE */
+	{FNAME("iPAddress") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _MulticastAddress_iPAddress},
+	{FNAME("iP6Address") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _MulticastAddress_iP6Address},
+	{FNAME("nsap") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardAddress") SEQ, 0, 2, 2, SKIP, 0, NULL},
+};
+
+static field_t _H245_TransportAddress[] = {	/* CHOICE */
+	{FNAME("unicastAddress") CHOICE, 3, 5, 7, DECODE | EXT,
+	 offsetof(H245_TransportAddress, unicastAddress), _UnicastAddress},
+	{FNAME("multicastAddress") CHOICE, 1, 2, 4, SKIP | EXT, 0,
+	 _MulticastAddress},
+};
+
+static field_t _H2250LogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("nonStandard") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _H2250LogicalChannelParameters_nonStandard},
+	{FNAME("sessionID") INT, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("associatedSessionID") INT, 8, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("mediaChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+	 offsetof(H2250LogicalChannelParameters, mediaChannel),
+	 _H245_TransportAddress},
+	{FNAME("mediaGuaranteedDelivery") BOOL, FIXD, 0, 0, SKIP | OPT, 0,
+	 NULL},
+	{FNAME("mediaControlChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+	 offsetof(H2250LogicalChannelParameters, mediaControlChannel),
+	 _H245_TransportAddress},
+	{FNAME("mediaControlGuaranteedDelivery") BOOL, FIXD, 0, 0, STOP | OPT,
+	 0, NULL},
+	{FNAME("silenceSuppression") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("destination") SEQ, 0, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("dynamicRTPPayloadType") INT, 5, 96, 0, STOP | OPT, 0, NULL},
+	{FNAME("mediaPacketization") CHOICE, 0, 1, 2, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("transportCapability") SEQ, 3, 3, 3, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("redundancyEncoding") SEQ, 1, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("source") SEQ, 0, 2, 2, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters[] = {	/* CHOICE */
+	{FNAME("h222LogicalChannelParameters") SEQ, 3, 5, 5, SKIP | EXT, 0,
+	 _H222LogicalChannelParameters},
+	{FNAME("h223LogicalChannelParameters") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _H223LogicalChannelParameters},
+	{FNAME("v76LogicalChannelParameters") SEQ, 0, 5, 5, SKIP | EXT, 0,
+	 _V76LogicalChannelParameters},
+	{FNAME("h2250LogicalChannelParameters") SEQ, 10, 11, 14, DECODE | EXT,
+	 offsetof
+	 (OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters,
+	  h2250LogicalChannelParameters), _H2250LogicalChannelParameters},
+	{FNAME("none") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _OpenLogicalChannel_forwardLogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("portNumber") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("dataType") CHOICE, 3, 6, 9, DECODE | EXT,
+	 offsetof(OpenLogicalChannel_forwardLogicalChannelParameters,
+		  dataType), _DataType},
+	{FNAME("multiplexParameters") CHOICE, 2, 3, 5, DECODE | EXT,
+	 offsetof(OpenLogicalChannel_forwardLogicalChannelParameters,
+		  multiplexParameters),
+	 _OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters},
+	{FNAME("forwardLogicalChannelDependency") INT, WORD, 1, 0, SKIP | OPT,
+	 0, NULL},
+	{FNAME("replacementFor") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters[] = {	/* CHOICE */
+	{FNAME("h223LogicalChannelParameters") SEQ, 0, 2, 2, SKIP | EXT, 0,
+	 _H223LogicalChannelParameters},
+	{FNAME("v76LogicalChannelParameters") SEQ, 0, 5, 5, SKIP | EXT, 0,
+	 _V76LogicalChannelParameters},
+	{FNAME("h2250LogicalChannelParameters") SEQ, 10, 11, 14, DECODE | EXT,
+	 offsetof
+	 (OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters,
+	  h2250LogicalChannelParameters), _H2250LogicalChannelParameters},
+};
+
+static field_t _OpenLogicalChannel_reverseLogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("dataType") CHOICE, 3, 6, 9, SKIP | EXT, 0, _DataType},
+	{FNAME("multiplexParameters") CHOICE, 1, 2, 3, DECODE | EXT | OPT,
+	 offsetof(OpenLogicalChannel_reverseLogicalChannelParameters,
+		  multiplexParameters),
+	 _OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters},
+	{FNAME("reverseLogicalChannelDependency") INT, WORD, 1, 0, SKIP | OPT,
+	 0, NULL},
+	{FNAME("replacementFor") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _NetworkAccessParameters_distribution[] = {	/* CHOICE */
+	{FNAME("unicast") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("multicast") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _Q2931Address_address[] = {	/* CHOICE */
+	{FNAME("internationalNumber") NUMSTR, 4, 1, 0, SKIP, 0, NULL},
+	{FNAME("nsapAddress") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+};
+
+static field_t _Q2931Address[] = {	/* SEQUENCE */
+	{FNAME("address") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+	 _Q2931Address_address},
+	{FNAME("subaddress") OCTSTR, 5, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _NetworkAccessParameters_networkAddress[] = {	/* CHOICE */
+	{FNAME("q2931Address") SEQ, 1, 2, 2, SKIP | EXT, 0, _Q2931Address},
+	{FNAME("e164Address") NUMDGT, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("localAreaAddress") CHOICE, 1, 2, 2, DECODE | EXT,
+	 offsetof(NetworkAccessParameters_networkAddress, localAreaAddress),
+	 _H245_TransportAddress},
+};
+
+static field_t _NetworkAccessParameters[] = {	/* SEQUENCE */
+	{FNAME("distribution") CHOICE, 1, 2, 2, SKIP | EXT | OPT, 0,
+	 _NetworkAccessParameters_distribution},
+	{FNAME("networkAddress") CHOICE, 2, 3, 3, DECODE | EXT,
+	 offsetof(NetworkAccessParameters, networkAddress),
+	 _NetworkAccessParameters_networkAddress},
+	{FNAME("associateConference") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("externalReference") OCTSTR, 8, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("t120SetupProcedure") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+	 NULL},
+};
+
+static field_t _OpenLogicalChannel[] = {	/* SEQUENCE */
+	{FNAME("forwardLogicalChannelNumber") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("forwardLogicalChannelParameters") SEQ, 1, 3, 5, DECODE | EXT,
+	 offsetof(OpenLogicalChannel, forwardLogicalChannelParameters),
+	 _OpenLogicalChannel_forwardLogicalChannelParameters},
+	{FNAME("reverseLogicalChannelParameters") SEQ, 1, 2, 4,
+	 DECODE | EXT | OPT, offsetof(OpenLogicalChannel,
+				      reverseLogicalChannelParameters),
+	 _OpenLogicalChannel_reverseLogicalChannelParameters},
+	{FNAME("separateStack") SEQ, 2, 4, 5, DECODE | EXT | OPT,
+	 offsetof(OpenLogicalChannel, separateStack),
+	 _NetworkAccessParameters},
+	{FNAME("encryptionSync") SEQ, 2, 4, 4, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Setup_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _Setup_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Setup_UUIE, h245Address), _TransportAddress},
+	{FNAME("sourceAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Setup_UUIE_sourceAddress},
+	{FNAME("sourceInfo") SEQ, 6, 8, 10, SKIP | EXT, 0, _EndpointType},
+	{FNAME("destinationAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Setup_UUIE_destinationAddress},
+	{FNAME("destCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Setup_UUIE, destCallSignalAddress), _TransportAddress},
+	{FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Setup_UUIE_destExtraCallInfo},
+	{FNAME("destExtraCRV") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Setup_UUIE_destExtraCRV},
+	{FNAME("activeMC") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("conferenceID") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("conferenceGoal") CHOICE, 2, 3, 5, SKIP | EXT, 0,
+	 _Setup_UUIE_conferenceGoal},
+	{FNAME("callServices") SEQ, 0, 8, 8, SKIP | EXT | OPT, 0,
+	 _QseriesOptions},
+	{FNAME("callType") CHOICE, 2, 4, 4, SKIP | EXT, 0, _CallType},
+	{FNAME("sourceCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Setup_UUIE, sourceCallSignalAddress), _TransportAddress},
+	{FNAME("remoteExtensionAddress") CHOICE, 1, 2, 7, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("h245SecurityCapability") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(Setup_UUIE, fastStart), _Setup_UUIE_fastStart},
+	{FNAME("mediaWaitForConnect") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("canOverlapSend") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("connectionParameters") SEQ, 0, 3, 3, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("language") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("symmetricOperationRequired") NUL, FIXD, 0, 0, SKIP | OPT, 0,
+	 NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("desiredProtocols") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("neededFeatures") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("desiredFeatures") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("supportedFeatures") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("parallelH245Control") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("additionalSourceAddresses") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 NULL},
+};
+
+static field_t _CallProceeding_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _CallProceeding_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+	 _EndpointType},
+	{FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(CallProceeding_UUIE, h245Address), _TransportAddress},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(CallProceeding_UUIE, fastStart),
+	 _CallProceeding_UUIE_fastStart},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Connect_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _Connect_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Connect_UUIE, h245Address), _TransportAddress},
+	{FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+	 _EndpointType},
+	{FNAME("conferenceID") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(Connect_UUIE, fastStart), _Connect_UUIE_fastStart},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("language") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("connectedAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Alerting_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _Alerting_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+	 _EndpointType},
+	{FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Alerting_UUIE, h245Address), _TransportAddress},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(Alerting_UUIE, fastStart), _Alerting_UUIE_fastStart},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("alertingAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Information_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _Information_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(Information_UUIE, fastStart), _Information_UUIE_fastStart},
+	{FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _ReleaseCompleteReason[] = {	/* CHOICE */
+	{FNAME("noBandwidth") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("gatekeeperResources") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("unreachableDestination") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("destinationRejection") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("invalidRevision") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("noPermission") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("unreachableGatekeeper") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("gatewayResources") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("badFormatAddress") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("adaptiveBusy") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("inConf") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("undefinedReason") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("facilityCallDeflection") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("securityDenied") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("calledPartyNotRegistered") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("callerNotRegistered") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("newConnectionNeeded") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardReason") SEQ, 0, 2, 2, SKIP, 0, NULL},
+	{FNAME("replaceWithConferenceInvite") OCTSTR, FIXD, 16, 0, SKIP, 0,
+	 NULL},
+	{FNAME("genericDataReason") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("neededFeatureNotSupported") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("tunnelledSignallingRejected") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _ReleaseComplete_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("reason") CHOICE, 4, 12, 22, SKIP | EXT | OPT, 0,
+	 _ReleaseCompleteReason},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("busyAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Facility_UUIE_alternativeAliasAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _FacilityReason[] = {	/* CHOICE */
+	{FNAME("routeCallToGatekeeper") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("callForwarded") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("routeCallToMC") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("undefinedReason") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("conferenceListChoice") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("startH245") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("noH245") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("newTokens") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("featureSetUpdate") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("forwardedElements") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("transportedInformation") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _Facility_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _Facility_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("alternativeAddress") CHOICE, 3, 7, 7, SKIP | EXT | OPT, 0,
+	 _TransportAddress},
+	{FNAME("alternativeAliasAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Facility_UUIE_alternativeAliasAddress},
+	{FNAME("conferenceID") OCTSTR, FIXD, 16, 0, SKIP | OPT, 0, NULL},
+	{FNAME("reason") CHOICE, 2, 4, 11, DECODE | EXT,
+	 offsetof(Facility_UUIE, reason), _FacilityReason},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+	{FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("remoteExtensionAddress") CHOICE, 1, 2, 7, SKIP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("conferences") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Facility_UUIE, h245Address), _TransportAddress},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(Facility_UUIE, fastStart), _Facility_UUIE_fastStart},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+	 NULL},
+};
+
+static field_t _CallIdentifier[] = {	/* SEQUENCE */
+	{FNAME("guid") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+};
+
+static field_t _SecurityServiceMode[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0, _NonStandardParameter},
+	{FNAME("none") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("default") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _SecurityCapabilities[] = {	/* SEQUENCE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("encryption") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+	 _SecurityServiceMode},
+	{FNAME("authenticaton") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+	 _SecurityServiceMode},
+	{FNAME("integrity") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+	 _SecurityServiceMode},
+};
+
+static field_t _H245Security[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0, _NonStandardParameter},
+	{FNAME("noSecurity") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("tls") SEQ, 1, 4, 4, SKIP | EXT, 0, _SecurityCapabilities},
+	{FNAME("ipsec") SEQ, 1, 4, 4, SKIP | EXT, 0, _SecurityCapabilities},
+};
+
+static field_t _DHset[] = {	/* SEQUENCE */
+	{FNAME("halfkey") BITSTR, WORD, 0, 0, SKIP, 0, NULL},
+	{FNAME("modSize") BITSTR, WORD, 0, 0, SKIP, 0, NULL},
+	{FNAME("generator") BITSTR, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TypedCertificate[] = {	/* SEQUENCE */
+	{FNAME("type") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("certificate") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H235_NonStandardParameter[] = {	/* SEQUENCE */
+	{FNAME("nonStandardIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("data") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _ClearToken[] = {	/* SEQUENCE */
+	{FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("timeStamp") INT, CONS, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("password") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("dhkey") SEQ, 0, 3, 3, SKIP | EXT | OPT, 0, _DHset},
+	{FNAME("challenge") OCTSTR, 7, 8, 0, SKIP | OPT, 0, NULL},
+	{FNAME("random") INT, UNCO, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("certificate") SEQ, 0, 2, 2, SKIP | EXT | OPT, 0,
+	 _TypedCertificate},
+	{FNAME("generalID") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("nonStandard") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _H235_NonStandardParameter},
+	{FNAME("eckasdhkey") CHOICE, 1, 2, 2, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("sendersID") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _Progress_UUIE_tokens[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 8, 9, 11, SKIP | EXT, 0, _ClearToken},
+};
+
+static field_t _Params[] = {	/* SEQUENCE */
+	{FNAME("ranInt") INT, UNCO, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("iv8") OCTSTR, FIXD, 8, 0, SKIP | OPT, 0, NULL},
+	{FNAME("iv16") OCTSTR, FIXD, 16, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoEPPwdHash_token[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("hash") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoEPPwdHash[] = {	/* SEQUENCE */
+	{FNAME("alias") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+	{FNAME("timeStamp") INT, CONS, 1, 0, SKIP, 0, NULL},
+	{FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoH323Token_cryptoEPPwdHash_token},
+};
+
+static field_t _CryptoH323Token_cryptoGKPwdHash_token[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("hash") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoGKPwdHash[] = {	/* SEQUENCE */
+	{FNAME("gatekeeperId") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("timeStamp") INT, CONS, 1, 0, SKIP, 0, NULL},
+	{FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoH323Token_cryptoGKPwdHash_token},
+};
+
+static field_t _CryptoH323Token_cryptoEPPwdEncr[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoGKPwdEncr[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoEPCert[] = {	/* SEQUENCE */
+	{FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoGKCert[] = {	/* SEQUENCE */
+	{FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoFastStart[] = {	/* SEQUENCE */
+	{FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoEncryptedToken_token[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoEncryptedToken[] = {	/* SEQUENCE */
+	{FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoToken_cryptoEncryptedToken_token},
+};
+
+static field_t _CryptoToken_cryptoSignedToken_token[] = {	/* SEQUENCE */
+	{FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoSignedToken[] = {	/* SEQUENCE */
+	{FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("token") SEQ, 0, 4, 4, SKIP, 0,
+	 _CryptoToken_cryptoSignedToken_token},
+};
+
+static field_t _CryptoToken_cryptoHashedToken_token[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("hash") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoHashedToken[] = {	/* SEQUENCE */
+	{FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("hashedVals") SEQ, 8, 9, 11, SKIP | EXT, 0, _ClearToken},
+	{FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoToken_cryptoHashedToken_token},
+};
+
+static field_t _CryptoToken_cryptoPwdEncr[] = {	/* SEQUENCE */
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+	{FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken[] = {	/* CHOICE */
+	{FNAME("cryptoEncryptedToken") SEQ, 0, 2, 2, SKIP, 0,
+	 _CryptoToken_cryptoEncryptedToken},
+	{FNAME("cryptoSignedToken") SEQ, 0, 2, 2, SKIP, 0,
+	 _CryptoToken_cryptoSignedToken},
+	{FNAME("cryptoHashedToken") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoToken_cryptoHashedToken},
+	{FNAME("cryptoPwdEncr") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoToken_cryptoPwdEncr},
+};
+
+static field_t _CryptoH323Token[] = {	/* CHOICE */
+	{FNAME("cryptoEPPwdHash") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoH323Token_cryptoEPPwdHash},
+	{FNAME("cryptoGKPwdHash") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoH323Token_cryptoGKPwdHash},
+	{FNAME("cryptoEPPwdEncr") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoH323Token_cryptoEPPwdEncr},
+	{FNAME("cryptoGKPwdEncr") SEQ, 0, 3, 3, SKIP, 0,
+	 _CryptoH323Token_cryptoGKPwdEncr},
+	{FNAME("cryptoEPCert") SEQ, 0, 4, 4, SKIP, 0,
+	 _CryptoH323Token_cryptoEPCert},
+	{FNAME("cryptoGKCert") SEQ, 0, 4, 4, SKIP, 0,
+	 _CryptoH323Token_cryptoGKCert},
+	{FNAME("cryptoFastStart") SEQ, 0, 4, 4, SKIP, 0,
+	 _CryptoH323Token_cryptoFastStart},
+	{FNAME("nestedcryptoToken") CHOICE, 2, 4, 4, SKIP | EXT, 0,
+	 _CryptoToken},
+};
+
+static field_t _Progress_UUIE_cryptoTokens[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 3, 8, 8, SKIP | EXT, 0, _CryptoH323Token},
+};
+
+static field_t _Progress_UUIE_fastStart[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+	 sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+	,
+};
+
+static field_t _Progress_UUIE[] = {	/* SEQUENCE */
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+	 _EndpointType},
+	{FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(Progress_UUIE, h245Address), _TransportAddress},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0,
+	 _CallIdentifier},
+	{FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+	 _H245Security},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Progress_UUIE_tokens},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _Progress_UUIE_cryptoTokens},
+	{FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+	 offsetof(Progress_UUIE, fastStart), _Progress_UUIE_fastStart},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _H323_UU_PDU_h323_message_body[] = {	/* CHOICE */
+	{FNAME("setup") SEQ, 7, 13, 39, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, setup), _Setup_UUIE},
+	{FNAME("callProceeding") SEQ, 1, 3, 12, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, callProceeding),
+	 _CallProceeding_UUIE},
+	{FNAME("connect") SEQ, 1, 4, 19, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, connect), _Connect_UUIE},
+	{FNAME("alerting") SEQ, 1, 3, 17, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, alerting), _Alerting_UUIE},
+	{FNAME("information") SEQ, 0, 1, 7, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, information),
+	 _Information_UUIE},
+	{FNAME("releaseComplete") SEQ, 1, 2, 11, SKIP | EXT, 0,
+	 _ReleaseComplete_UUIE},
+	{FNAME("facility") SEQ, 3, 5, 21, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, facility), _Facility_UUIE},
+	{FNAME("progress") SEQ, 5, 8, 11, DECODE | EXT,
+	 offsetof(H323_UU_PDU_h323_message_body, progress), _Progress_UUIE},
+	{FNAME("empty") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("status") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+	{FNAME("statusInquiry") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+	{FNAME("setupAcknowledge") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+	{FNAME("notify") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+};
+
+static field_t _RequestMessage[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("masterSlaveDetermination") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("terminalCapabilitySet") SEQ, 3, 5, 5, STOP | EXT, 0, NULL},
+	{FNAME("openLogicalChannel") SEQ, 1, 3, 5, DECODE | EXT,
+	 offsetof(RequestMessage, openLogicalChannel), _OpenLogicalChannel},
+	{FNAME("closeLogicalChannel") SEQ, 0, 2, 3, STOP | EXT, 0, NULL},
+	{FNAME("requestChannelClose") SEQ, 0, 1, 3, STOP | EXT, 0, NULL},
+	{FNAME("multiplexEntrySend") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("requestMultiplexEntry") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("requestMode") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("roundTripDelayRequest") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("maintenanceLoopRequest") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("communicationModeRequest") SEQ, 0, 0, 0, STOP | EXT, 0, NULL},
+	{FNAME("conferenceRequest") CHOICE, 3, 8, 16, STOP | EXT, 0, NULL},
+	{FNAME("multilinkRequest") CHOICE, 3, 5, 5, STOP | EXT, 0, NULL},
+	{FNAME("logicalChannelRateRequest") SEQ, 0, 3, 3, STOP | EXT, 0,
+	 NULL},
+};
+
+static field_t _OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters[] = {	/* CHOICE */
+	{FNAME("h222LogicalChannelParameters") SEQ, 3, 5, 5, SKIP | EXT, 0,
+	 _H222LogicalChannelParameters},
+	{FNAME("h2250LogicalChannelParameters") SEQ, 10, 11, 14, DECODE | EXT,
+	 offsetof
+	 (OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters,
+	  h2250LogicalChannelParameters), _H2250LogicalChannelParameters},
+};
+
+static field_t _OpenLogicalChannelAck_reverseLogicalChannelParameters[] = {	/* SEQUENCE */
+	{FNAME("reverseLogicalChannelNumber") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("portNumber") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("multiplexParameters") CHOICE, 0, 1, 2, DECODE | EXT | OPT,
+	 offsetof(OpenLogicalChannelAck_reverseLogicalChannelParameters,
+		  multiplexParameters),
+	 _OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters},
+	{FNAME("replacementFor") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _H2250LogicalChannelAckParameters_nonStandard[] = {	/* SEQUENCE OF */
+	{FNAME("item") SEQ, 0, 2, 2, SKIP, 0, _H245_NonStandardParameter},
+};
+
+static field_t _H2250LogicalChannelAckParameters[] = {	/* SEQUENCE */
+	{FNAME("nonStandard") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _H2250LogicalChannelAckParameters_nonStandard},
+	{FNAME("sessionID") INT, 8, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("mediaChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+	 offsetof(H2250LogicalChannelAckParameters, mediaChannel),
+	 _H245_TransportAddress},
+	{FNAME("mediaControlChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+	 offsetof(H2250LogicalChannelAckParameters, mediaControlChannel),
+	 _H245_TransportAddress},
+	{FNAME("dynamicRTPPayloadType") INT, 5, 96, 0, SKIP | OPT, 0, NULL},
+	{FNAME("flowControlToZero") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("portNumber") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _OpenLogicalChannelAck_forwardMultiplexAckParameters[] = {	/* CHOICE */
+	{FNAME("h2250LogicalChannelAckParameters") SEQ, 5, 5, 7, DECODE | EXT,
+	 offsetof(OpenLogicalChannelAck_forwardMultiplexAckParameters,
+		  h2250LogicalChannelAckParameters),
+	 _H2250LogicalChannelAckParameters},
+};
+
+static field_t _OpenLogicalChannelAck[] = {	/* SEQUENCE */
+	{FNAME("forwardLogicalChannelNumber") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("reverseLogicalChannelParameters") SEQ, 2, 3, 4,
+	 DECODE | EXT | OPT, offsetof(OpenLogicalChannelAck,
+				      reverseLogicalChannelParameters),
+	 _OpenLogicalChannelAck_reverseLogicalChannelParameters},
+	{FNAME("separateStack") SEQ, 2, 4, 5, SKIP | EXT | OPT, 0, NULL},
+	{FNAME("forwardMultiplexAckParameters") CHOICE, 0, 1, 1,
+	 DECODE | EXT | OPT, offsetof(OpenLogicalChannelAck,
+				      forwardMultiplexAckParameters),
+	 _OpenLogicalChannelAck_forwardMultiplexAckParameters},
+	{FNAME("encryptionSync") SEQ, 2, 4, 4, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _ResponseMessage[] = {	/* CHOICE */
+	{FNAME("nonStandard") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("masterSlaveDeterminationAck") SEQ, 0, 1, 1, STOP | EXT, 0,
+	 NULL},
+	{FNAME("masterSlaveDeterminationReject") SEQ, 0, 1, 1, STOP | EXT, 0,
+	 NULL},
+	{FNAME("terminalCapabilitySetAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("terminalCapabilitySetReject") SEQ, 0, 2, 2, STOP | EXT, 0,
+	 NULL},
+	{FNAME("openLogicalChannelAck") SEQ, 1, 2, 5, DECODE | EXT,
+	 offsetof(ResponseMessage, openLogicalChannelAck),
+	 _OpenLogicalChannelAck},
+	{FNAME("openLogicalChannelReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("closeLogicalChannelAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("requestChannelCloseAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("requestChannelCloseReject") SEQ, 0, 2, 2, STOP | EXT, 0,
+	 NULL},
+	{FNAME("multiplexEntrySendAck") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("multiplexEntrySendReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("requestMultiplexEntryAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("requestMultiplexEntryReject") SEQ, 0, 2, 2, STOP | EXT, 0,
+	 NULL},
+	{FNAME("requestModeAck") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("requestModeReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("roundTripDelayResponse") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("maintenanceLoopAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("maintenanceLoopReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+	{FNAME("communicationModeResponse") CHOICE, 0, 1, 1, STOP | EXT, 0,
+	 NULL},
+	{FNAME("conferenceResponse") CHOICE, 3, 8, 16, STOP | EXT, 0, NULL},
+	{FNAME("multilinkResponse") CHOICE, 3, 5, 5, STOP | EXT, 0, NULL},
+	{FNAME("logicalChannelRateAcknowledge") SEQ, 0, 3, 3, STOP | EXT, 0,
+	 NULL},
+	{FNAME("logicalChannelRateReject") SEQ, 1, 4, 4, STOP | EXT, 0, NULL},
+};
+
+static field_t _MultimediaSystemControlMessage[] = {	/* CHOICE */
+	{FNAME("request") CHOICE, 4, 11, 15, DECODE | EXT,
+	 offsetof(MultimediaSystemControlMessage, request), _RequestMessage},
+	{FNAME("response") CHOICE, 5, 19, 24, DECODE | EXT,
+	 offsetof(MultimediaSystemControlMessage, response),
+	 _ResponseMessage},
+	{FNAME("command") CHOICE, 3, 7, 12, STOP | EXT, 0, NULL},
+	{FNAME("indication") CHOICE, 4, 14, 23, STOP | EXT, 0, NULL},
+};
+
+static field_t _H323_UU_PDU_h245Control[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 2, 4, 4, DECODE | OPEN | EXT,
+	 sizeof(MultimediaSystemControlMessage),
+	 _MultimediaSystemControlMessage}
+	,
+};
+
+static field_t _H323_UU_PDU[] = {	/* SEQUENCE */
+	{FNAME("h323-message-body") CHOICE, 3, 7, 13, DECODE | EXT,
+	 offsetof(H323_UU_PDU, h323_message_body),
+	 _H323_UU_PDU_h323_message_body},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("h4501SupplementaryService") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 NULL},
+	{FNAME("h245Tunneling") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("h245Control") SEQOF, SEMI, 0, 4, DECODE | OPT,
+	 offsetof(H323_UU_PDU, h245Control), _H323_UU_PDU_h245Control},
+	{FNAME("nonStandardControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("callLinkage") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("tunnelledSignallingMessage") SEQ, 2, 4, 4, STOP | EXT | OPT,
+	 0, NULL},
+	{FNAME("provisionalRespToH245Tunneling") NUL, FIXD, 0, 0, STOP | OPT,
+	 0, NULL},
+	{FNAME("stimulusControl") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _H323_UserInformation[] = {	/* SEQUENCE */
+	{FNAME("h323-uu-pdu") SEQ, 1, 2, 11, DECODE | EXT,
+	 offsetof(H323_UserInformation, h323_uu_pdu), _H323_UU_PDU},
+	{FNAME("user-data") SEQ, 0, 2, 2, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _GatekeeperRequest[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(GatekeeperRequest, rasAddress), _TransportAddress},
+	{FNAME("endpointType") SEQ, 6, 8, 10, STOP | EXT, 0, NULL},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("callServices") SEQ, 0, 8, 8, STOP | EXT | OPT, 0, NULL},
+	{FNAME("endpointAlias") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("authenticationCapability") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("algorithmOIDs") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrity") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("supportsAltGK") NUL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _GatekeeperConfirm[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(GatekeeperConfirm, rasAddress), _TransportAddress},
+	{FNAME("alternateGatekeeper") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("authenticationMode") CHOICE, 3, 7, 8, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("algorithmOID") OID, BYTE, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrity") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _RegistrationRequest_callSignalAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+	 sizeof(TransportAddress), _TransportAddress}
+	,
+};
+
+static field_t _RegistrationRequest_rasAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+	 sizeof(TransportAddress), _TransportAddress}
+	,
+};
+
+static field_t _RegistrationRequest_terminalAlias[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _RegistrationRequest[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("discoveryComplete") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+	 offsetof(RegistrationRequest, callSignalAddress),
+	 _RegistrationRequest_callSignalAddress},
+	{FNAME("rasAddress") SEQOF, SEMI, 0, 10, DECODE,
+	 offsetof(RegistrationRequest, rasAddress),
+	 _RegistrationRequest_rasAddress},
+	{FNAME("terminalType") SEQ, 6, 8, 10, SKIP | EXT, 0, _EndpointType},
+	{FNAME("terminalAlias") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _RegistrationRequest_terminalAlias},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("endpointVendor") SEQ, 2, 3, 3, SKIP | EXT, 0,
+	 _VendorIdentifier},
+	{FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("timeToLive") INT, CONS, 1, 0, DECODE | OPT,
+	 offsetof(RegistrationRequest, timeToLive), NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("keepAlive") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("willSupplyUUIEs") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("alternateTransportAddresses") SEQ, 1, 1, 1, STOP | EXT | OPT,
+	 0, NULL},
+	{FNAME("additiveRegistration") NUL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("terminalAliasPattern") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("supportsAltGK") NUL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("usageReportingCapability") SEQ, 3, 4, 4, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("supportedH248Packages") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("callCreditCapability") SEQ, 2, 2, 2, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("capacityReportingCapability") SEQ, 0, 1, 1, STOP | EXT | OPT,
+	 0, NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _RegistrationConfirm_callSignalAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+	 sizeof(TransportAddress), _TransportAddress}
+	,
+};
+
+static field_t _RegistrationConfirm_terminalAlias[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _RegistrationConfirm[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+	 offsetof(RegistrationConfirm, callSignalAddress),
+	 _RegistrationConfirm_callSignalAddress},
+	{FNAME("terminalAlias") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _RegistrationConfirm_terminalAlias},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("alternateGatekeeper") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+	{FNAME("timeToLive") INT, CONS, 1, 0, DECODE | OPT,
+	 offsetof(RegistrationConfirm, timeToLive), NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("willRespondToIRR") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("preGrantedARQ") SEQ, 0, 4, 8, STOP | EXT | OPT, 0, NULL},
+	{FNAME("maintainConnection") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("supportsAdditiveRegistration") NUL, FIXD, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("terminalAliasPattern") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("usageSpec") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("featureServerAlias") CHOICE, 1, 2, 7, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("capacityReportingSpec") SEQ, 0, 1, 1, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _UnregistrationRequest_callSignalAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+	 sizeof(TransportAddress), _TransportAddress}
+	,
+};
+
+static field_t _UnregistrationRequest[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+	 offsetof(UnregistrationRequest, callSignalAddress),
+	 _UnregistrationRequest_callSignalAddress},
+	{FNAME("endpointAlias") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("reason") CHOICE, 2, 4, 5, STOP | EXT | OPT, 0, NULL},
+	{FNAME("endpointAliasPattern") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("alternateGatekeeper") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _CallModel[] = {	/* CHOICE */
+	{FNAME("direct") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+	{FNAME("gatekeeperRouted") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _AdmissionRequest_destinationInfo[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _AdmissionRequest_destExtraCallInfo[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _AdmissionRequest_srcInfo[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _AdmissionRequest[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("callType") CHOICE, 2, 4, 4, SKIP | EXT, 0, _CallType},
+	{FNAME("callModel") CHOICE, 1, 2, 2, SKIP | EXT | OPT, 0, _CallModel},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("destinationInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _AdmissionRequest_destinationInfo},
+	{FNAME("destCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(AdmissionRequest, destCallSignalAddress),
+	 _TransportAddress},
+	{FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+	 _AdmissionRequest_destExtraCallInfo},
+	{FNAME("srcInfo") SEQOF, SEMI, 0, 0, SKIP, 0,
+	 _AdmissionRequest_srcInfo},
+	{FNAME("srcCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+	 offsetof(AdmissionRequest, srcCallSignalAddress), _TransportAddress},
+	{FNAME("bandWidth") INT, CONS, 0, 0, STOP, 0, NULL},
+	{FNAME("callReferenceValue") INT, WORD, 0, 0, STOP, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("callServices") SEQ, 0, 8, 8, STOP | EXT | OPT, 0, NULL},
+	{FNAME("conferenceID") OCTSTR, FIXD, 16, 0, STOP, 0, NULL},
+	{FNAME("activeMC") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("answerCall") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("canMapAlias") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("callIdentifier") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+	{FNAME("srcAlternatives") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("destAlternatives") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("transportQOS") CHOICE, 2, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("willSupplyUUIEs") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("callLinkage") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("gatewayDataRate") SEQ, 2, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("desiredProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("desiredTunnelledProtocol") SEQ, 1, 2, 2, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _AdmissionConfirm[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("bandWidth") INT, CONS, 0, 0, SKIP, 0, NULL},
+	{FNAME("callModel") CHOICE, 1, 2, 2, SKIP | EXT, 0, _CallModel},
+	{FNAME("destCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(AdmissionConfirm, destCallSignalAddress),
+	 _TransportAddress},
+	{FNAME("irrFrequency") INT, WORD, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("destinationInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("destinationType") SEQ, 6, 8, 10, STOP | EXT | OPT, 0, NULL},
+	{FNAME("remoteExtensionAddress") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("transportQOS") CHOICE, 2, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("willRespondToIRR") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("uuiesRequested") SEQ, 0, 9, 13, STOP | EXT, 0, NULL},
+	{FNAME("language") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("alternateTransportAddresses") SEQ, 1, 1, 1, STOP | EXT | OPT,
+	 0, NULL},
+	{FNAME("useSpecifiedTransport") CHOICE, 1, 2, 2, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("usageSpec") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("supportedProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _LocationRequest_destinationInfo[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _LocationRequest[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+	{FNAME("destinationInfo") SEQOF, SEMI, 0, 0, SKIP, 0,
+	 _LocationRequest_destinationInfo},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("replyAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(LocationRequest, replyAddress), _TransportAddress},
+	{FNAME("sourceInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("canMapAlias") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("desiredProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("desiredTunnelledProtocol") SEQ, 1, 2, 2, STOP | EXT | OPT, 0,
+	 NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("hopCount") INT, 8, 1, 0, STOP | OPT, 0, NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _LocationConfirm[] = {	/* SEQUENCE */
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("callSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(LocationConfirm, callSignalAddress), _TransportAddress},
+	{FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(LocationConfirm, rasAddress), _TransportAddress},
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("destinationInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("destinationType") SEQ, 6, 8, 10, STOP | EXT | OPT, 0, NULL},
+	{FNAME("remoteExtensionAddress") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+	 NULL},
+	{FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("alternateTransportAddresses") SEQ, 1, 1, 1, STOP | EXT | OPT,
+	 0, NULL},
+	{FNAME("supportedProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("multipleCalls") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+	{FNAME("serviceControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _InfoRequestResponse_callSignalAddress[] = {	/* SEQUENCE OF */
+	{FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+	 sizeof(TransportAddress), _TransportAddress}
+	,
+};
+
+static field_t _InfoRequestResponse[] = {	/* SEQUENCE */
+	{FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+	 _NonStandardParameter},
+	{FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+	{FNAME("endpointType") SEQ, 6, 8, 10, SKIP | EXT, 0, _EndpointType},
+	{FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+	{FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+	 offsetof(InfoRequestResponse, rasAddress), _TransportAddress},
+	{FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+	 offsetof(InfoRequestResponse, callSignalAddress),
+	 _InfoRequestResponse_callSignalAddress},
+	{FNAME("endpointAlias") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("perCallInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+	{FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+	{FNAME("needResponse") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("capacity") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+	{FNAME("irrStatus") CHOICE, 2, 4, 4, STOP | EXT | OPT, 0, NULL},
+	{FNAME("unsolicited") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+	{FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _RasMessage[] = {	/* CHOICE */
+	{FNAME("gatekeeperRequest") SEQ, 4, 8, 18, DECODE | EXT,
+	 offsetof(RasMessage, gatekeeperRequest), _GatekeeperRequest},
+	{FNAME("gatekeeperConfirm") SEQ, 2, 5, 14, DECODE | EXT,
+	 offsetof(RasMessage, gatekeeperConfirm), _GatekeeperConfirm},
+	{FNAME("gatekeeperReject") SEQ, 2, 5, 11, STOP | EXT, 0, NULL},
+	{FNAME("registrationRequest") SEQ, 3, 10, 31, DECODE | EXT,
+	 offsetof(RasMessage, registrationRequest), _RegistrationRequest},
+	{FNAME("registrationConfirm") SEQ, 3, 7, 24, DECODE | EXT,
+	 offsetof(RasMessage, registrationConfirm), _RegistrationConfirm},
+	{FNAME("registrationReject") SEQ, 2, 5, 11, STOP | EXT, 0, NULL},
+	{FNAME("unregistrationRequest") SEQ, 3, 5, 15, DECODE | EXT,
+	 offsetof(RasMessage, unregistrationRequest), _UnregistrationRequest},
+	{FNAME("unregistrationConfirm") SEQ, 1, 2, 6, STOP | EXT, 0, NULL},
+	{FNAME("unregistrationReject") SEQ, 1, 3, 8, STOP | EXT, 0, NULL},
+	{FNAME("admissionRequest") SEQ, 7, 16, 34, DECODE | EXT,
+	 offsetof(RasMessage, admissionRequest), _AdmissionRequest},
+	{FNAME("admissionConfirm") SEQ, 2, 6, 27, DECODE | EXT,
+	 offsetof(RasMessage, admissionConfirm), _AdmissionConfirm},
+	{FNAME("admissionReject") SEQ, 1, 3, 11, STOP | EXT, 0, NULL},
+	{FNAME("bandwidthRequest") SEQ, 2, 7, 18, STOP | EXT, 0, NULL},
+	{FNAME("bandwidthConfirm") SEQ, 1, 3, 8, STOP | EXT, 0, NULL},
+	{FNAME("bandwidthReject") SEQ, 1, 4, 9, STOP | EXT, 0, NULL},
+	{FNAME("disengageRequest") SEQ, 1, 6, 19, STOP | EXT, 0, NULL},
+	{FNAME("disengageConfirm") SEQ, 1, 2, 9, STOP | EXT, 0, NULL},
+	{FNAME("disengageReject") SEQ, 1, 3, 8, STOP | EXT, 0, NULL},
+	{FNAME("locationRequest") SEQ, 2, 5, 17, DECODE | EXT,
+	 offsetof(RasMessage, locationRequest), _LocationRequest},
+	{FNAME("locationConfirm") SEQ, 1, 4, 19, DECODE | EXT,
+	 offsetof(RasMessage, locationConfirm), _LocationConfirm},
+	{FNAME("locationReject") SEQ, 1, 3, 10, STOP | EXT, 0, NULL},
+	{FNAME("infoRequest") SEQ, 2, 4, 15, STOP | EXT, 0, NULL},
+	{FNAME("infoRequestResponse") SEQ, 3, 8, 16, DECODE | EXT,
+	 offsetof(RasMessage, infoRequestResponse), _InfoRequestResponse},
+	{FNAME("nonStandardMessage") SEQ, 0, 2, 7, STOP | EXT, 0, NULL},
+	{FNAME("unknownMessageResponse") SEQ, 0, 1, 5, STOP | EXT, 0, NULL},
+	{FNAME("requestInProgress") SEQ, 4, 6, 6, STOP | EXT, 0, NULL},
+	{FNAME("resourcesAvailableIndicate") SEQ, 4, 9, 11, STOP | EXT, 0,
+	 NULL},
+	{FNAME("resourcesAvailableConfirm") SEQ, 4, 6, 7, STOP | EXT, 0,
+	 NULL},
+	{FNAME("infoRequestAck") SEQ, 4, 5, 5, STOP | EXT, 0, NULL},
+	{FNAME("infoRequestNak") SEQ, 5, 7, 7, STOP | EXT, 0, NULL},
+	{FNAME("serviceControlIndication") SEQ, 8, 10, 10, STOP | EXT, 0,
+	 NULL},
+	{FNAME("serviceControlResponse") SEQ, 7, 8, 8, STOP | EXT, 0, NULL},
+};
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_types.h b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.h
new file mode 100644
index 0000000..cc98f7a
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.h
@@ -0,0 +1,938 @@
+/* Generated by Jing Min Zhao's ASN.1 parser, Mar 15 2006
+ *
+ * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ */
+
+typedef struct TransportAddress_ipAddress {	/* SEQUENCE */
+	int options;		/* No use */
+	unsigned ip;
+} TransportAddress_ipAddress;
+
+typedef struct TransportAddress {	/* CHOICE */
+	enum {
+		eTransportAddress_ipAddress,
+		eTransportAddress_ipSourceRoute,
+		eTransportAddress_ipxAddress,
+		eTransportAddress_ip6Address,
+		eTransportAddress_netBios,
+		eTransportAddress_nsap,
+		eTransportAddress_nonStandardAddress,
+	} choice;
+	union {
+		TransportAddress_ipAddress ipAddress;
+	};
+} TransportAddress;
+
+typedef struct DataProtocolCapability {	/* CHOICE */
+	enum {
+		eDataProtocolCapability_nonStandard,
+		eDataProtocolCapability_v14buffered,
+		eDataProtocolCapability_v42lapm,
+		eDataProtocolCapability_hdlcFrameTunnelling,
+		eDataProtocolCapability_h310SeparateVCStack,
+		eDataProtocolCapability_h310SingleVCStack,
+		eDataProtocolCapability_transparent,
+		eDataProtocolCapability_segmentationAndReassembly,
+		eDataProtocolCapability_hdlcFrameTunnelingwSAR,
+		eDataProtocolCapability_v120,
+		eDataProtocolCapability_separateLANStack,
+		eDataProtocolCapability_v76wCompression,
+		eDataProtocolCapability_tcp,
+		eDataProtocolCapability_udp,
+	} choice;
+} DataProtocolCapability;
+
+typedef struct DataApplicationCapability_application {	/* CHOICE */
+	enum {
+		eDataApplicationCapability_application_nonStandard,
+		eDataApplicationCapability_application_t120,
+		eDataApplicationCapability_application_dsm_cc,
+		eDataApplicationCapability_application_userData,
+		eDataApplicationCapability_application_t84,
+		eDataApplicationCapability_application_t434,
+		eDataApplicationCapability_application_h224,
+		eDataApplicationCapability_application_nlpid,
+		eDataApplicationCapability_application_dsvdControl,
+		eDataApplicationCapability_application_h222DataPartitioning,
+		eDataApplicationCapability_application_t30fax,
+		eDataApplicationCapability_application_t140,
+		eDataApplicationCapability_application_t38fax,
+		eDataApplicationCapability_application_genericDataCapability,
+	} choice;
+	union {
+		DataProtocolCapability t120;
+	};
+} DataApplicationCapability_application;
+
+typedef struct DataApplicationCapability {	/* SEQUENCE */
+	int options;		/* No use */
+	DataApplicationCapability_application application;
+} DataApplicationCapability;
+
+typedef struct DataType {	/* CHOICE */
+	enum {
+		eDataType_nonStandard,
+		eDataType_nullData,
+		eDataType_videoData,
+		eDataType_audioData,
+		eDataType_data,
+		eDataType_encryptionData,
+		eDataType_h235Control,
+		eDataType_h235Media,
+		eDataType_multiplexedStream,
+	} choice;
+	union {
+		DataApplicationCapability data;
+	};
+} DataType;
+
+typedef struct UnicastAddress_iPAddress {	/* SEQUENCE */
+	int options;		/* No use */
+	unsigned network;
+} UnicastAddress_iPAddress;
+
+typedef struct UnicastAddress {	/* CHOICE */
+	enum {
+		eUnicastAddress_iPAddress,
+		eUnicastAddress_iPXAddress,
+		eUnicastAddress_iP6Address,
+		eUnicastAddress_netBios,
+		eUnicastAddress_iPSourceRouteAddress,
+		eUnicastAddress_nsap,
+		eUnicastAddress_nonStandardAddress,
+	} choice;
+	union {
+		UnicastAddress_iPAddress iPAddress;
+	};
+} UnicastAddress;
+
+typedef struct H245_TransportAddress {	/* CHOICE */
+	enum {
+		eH245_TransportAddress_unicastAddress,
+		eH245_TransportAddress_multicastAddress,
+	} choice;
+	union {
+		UnicastAddress unicastAddress;
+	};
+} H245_TransportAddress;
+
+typedef struct H2250LogicalChannelParameters {	/* SEQUENCE */
+	enum {
+		eH2250LogicalChannelParameters_nonStandard = (1 << 31),
+		eH2250LogicalChannelParameters_associatedSessionID =
+		    (1 << 30),
+		eH2250LogicalChannelParameters_mediaChannel = (1 << 29),
+		eH2250LogicalChannelParameters_mediaGuaranteedDelivery =
+		    (1 << 28),
+		eH2250LogicalChannelParameters_mediaControlChannel =
+		    (1 << 27),
+		eH2250LogicalChannelParameters_mediaControlGuaranteedDelivery
+		    = (1 << 26),
+		eH2250LogicalChannelParameters_silenceSuppression = (1 << 25),
+		eH2250LogicalChannelParameters_destination = (1 << 24),
+		eH2250LogicalChannelParameters_dynamicRTPPayloadType =
+		    (1 << 23),
+		eH2250LogicalChannelParameters_mediaPacketization = (1 << 22),
+		eH2250LogicalChannelParameters_transportCapability =
+		    (1 << 21),
+		eH2250LogicalChannelParameters_redundancyEncoding = (1 << 20),
+		eH2250LogicalChannelParameters_source = (1 << 19),
+	} options;
+	H245_TransportAddress mediaChannel;
+	H245_TransportAddress mediaControlChannel;
+} H2250LogicalChannelParameters;
+
+typedef struct OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters {	/* CHOICE */
+	enum {
+		eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h222LogicalChannelParameters,
+		eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h223LogicalChannelParameters,
+		eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_v76LogicalChannelParameters,
+		eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters,
+		eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_none,
+	} choice;
+	union {
+		H2250LogicalChannelParameters h2250LogicalChannelParameters;
+	};
+} OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters;
+
+typedef struct OpenLogicalChannel_forwardLogicalChannelParameters {	/* SEQUENCE */
+	enum {
+		eOpenLogicalChannel_forwardLogicalChannelParameters_portNumber
+		    = (1 << 31),
+		eOpenLogicalChannel_forwardLogicalChannelParameters_forwardLogicalChannelDependency
+		    = (1 << 30),
+		eOpenLogicalChannel_forwardLogicalChannelParameters_replacementFor
+		    = (1 << 29),
+	} options;
+	DataType dataType;
+	OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters
+	    multiplexParameters;
+} OpenLogicalChannel_forwardLogicalChannelParameters;
+
+typedef struct OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters {	/* CHOICE */
+	enum {
+		eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h223LogicalChannelParameters,
+		eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_v76LogicalChannelParameters,
+		eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters,
+	} choice;
+	union {
+		H2250LogicalChannelParameters h2250LogicalChannelParameters;
+	};
+} OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters;
+
+typedef struct OpenLogicalChannel_reverseLogicalChannelParameters {	/* SEQUENCE */
+	enum {
+		eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters
+		    = (1 << 31),
+		eOpenLogicalChannel_reverseLogicalChannelParameters_reverseLogicalChannelDependency
+		    = (1 << 30),
+		eOpenLogicalChannel_reverseLogicalChannelParameters_replacementFor
+		    = (1 << 29),
+	} options;
+	OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters
+	    multiplexParameters;
+} OpenLogicalChannel_reverseLogicalChannelParameters;
+
+typedef struct NetworkAccessParameters_networkAddress {	/* CHOICE */
+	enum {
+		eNetworkAccessParameters_networkAddress_q2931Address,
+		eNetworkAccessParameters_networkAddress_e164Address,
+		eNetworkAccessParameters_networkAddress_localAreaAddress,
+	} choice;
+	union {
+		H245_TransportAddress localAreaAddress;
+	};
+} NetworkAccessParameters_networkAddress;
+
+typedef struct NetworkAccessParameters {	/* SEQUENCE */
+	enum {
+		eNetworkAccessParameters_distribution = (1 << 31),
+		eNetworkAccessParameters_externalReference = (1 << 30),
+		eNetworkAccessParameters_t120SetupProcedure = (1 << 29),
+	} options;
+	NetworkAccessParameters_networkAddress networkAddress;
+} NetworkAccessParameters;
+
+typedef struct OpenLogicalChannel {	/* SEQUENCE */
+	enum {
+		eOpenLogicalChannel_reverseLogicalChannelParameters =
+		    (1 << 31),
+		eOpenLogicalChannel_separateStack = (1 << 30),
+		eOpenLogicalChannel_encryptionSync = (1 << 29),
+	} options;
+	OpenLogicalChannel_forwardLogicalChannelParameters
+	    forwardLogicalChannelParameters;
+	OpenLogicalChannel_reverseLogicalChannelParameters
+	    reverseLogicalChannelParameters;
+	NetworkAccessParameters separateStack;
+} OpenLogicalChannel;
+
+typedef struct Setup_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} Setup_UUIE_fastStart;
+
+typedef struct Setup_UUIE {	/* SEQUENCE */
+	enum {
+		eSetup_UUIE_h245Address = (1 << 31),
+		eSetup_UUIE_sourceAddress = (1 << 30),
+		eSetup_UUIE_destinationAddress = (1 << 29),
+		eSetup_UUIE_destCallSignalAddress = (1 << 28),
+		eSetup_UUIE_destExtraCallInfo = (1 << 27),
+		eSetup_UUIE_destExtraCRV = (1 << 26),
+		eSetup_UUIE_callServices = (1 << 25),
+		eSetup_UUIE_sourceCallSignalAddress = (1 << 24),
+		eSetup_UUIE_remoteExtensionAddress = (1 << 23),
+		eSetup_UUIE_callIdentifier = (1 << 22),
+		eSetup_UUIE_h245SecurityCapability = (1 << 21),
+		eSetup_UUIE_tokens = (1 << 20),
+		eSetup_UUIE_cryptoTokens = (1 << 19),
+		eSetup_UUIE_fastStart = (1 << 18),
+		eSetup_UUIE_mediaWaitForConnect = (1 << 17),
+		eSetup_UUIE_canOverlapSend = (1 << 16),
+		eSetup_UUIE_endpointIdentifier = (1 << 15),
+		eSetup_UUIE_multipleCalls = (1 << 14),
+		eSetup_UUIE_maintainConnection = (1 << 13),
+		eSetup_UUIE_connectionParameters = (1 << 12),
+		eSetup_UUIE_language = (1 << 11),
+		eSetup_UUIE_presentationIndicator = (1 << 10),
+		eSetup_UUIE_screeningIndicator = (1 << 9),
+		eSetup_UUIE_serviceControl = (1 << 8),
+		eSetup_UUIE_symmetricOperationRequired = (1 << 7),
+		eSetup_UUIE_capacity = (1 << 6),
+		eSetup_UUIE_circuitInfo = (1 << 5),
+		eSetup_UUIE_desiredProtocols = (1 << 4),
+		eSetup_UUIE_neededFeatures = (1 << 3),
+		eSetup_UUIE_desiredFeatures = (1 << 2),
+		eSetup_UUIE_supportedFeatures = (1 << 1),
+		eSetup_UUIE_parallelH245Control = (1 << 0),
+	} options;
+	TransportAddress h245Address;
+	TransportAddress destCallSignalAddress;
+	TransportAddress sourceCallSignalAddress;
+	Setup_UUIE_fastStart fastStart;
+} Setup_UUIE;
+
+typedef struct CallProceeding_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} CallProceeding_UUIE_fastStart;
+
+typedef struct CallProceeding_UUIE {	/* SEQUENCE */
+	enum {
+		eCallProceeding_UUIE_h245Address = (1 << 31),
+		eCallProceeding_UUIE_callIdentifier = (1 << 30),
+		eCallProceeding_UUIE_h245SecurityMode = (1 << 29),
+		eCallProceeding_UUIE_tokens = (1 << 28),
+		eCallProceeding_UUIE_cryptoTokens = (1 << 27),
+		eCallProceeding_UUIE_fastStart = (1 << 26),
+		eCallProceeding_UUIE_multipleCalls = (1 << 25),
+		eCallProceeding_UUIE_maintainConnection = (1 << 24),
+		eCallProceeding_UUIE_fastConnectRefused = (1 << 23),
+		eCallProceeding_UUIE_featureSet = (1 << 22),
+	} options;
+	TransportAddress h245Address;
+	CallProceeding_UUIE_fastStart fastStart;
+} CallProceeding_UUIE;
+
+typedef struct Connect_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} Connect_UUIE_fastStart;
+
+typedef struct Connect_UUIE {	/* SEQUENCE */
+	enum {
+		eConnect_UUIE_h245Address = (1 << 31),
+		eConnect_UUIE_callIdentifier = (1 << 30),
+		eConnect_UUIE_h245SecurityMode = (1 << 29),
+		eConnect_UUIE_tokens = (1 << 28),
+		eConnect_UUIE_cryptoTokens = (1 << 27),
+		eConnect_UUIE_fastStart = (1 << 26),
+		eConnect_UUIE_multipleCalls = (1 << 25),
+		eConnect_UUIE_maintainConnection = (1 << 24),
+		eConnect_UUIE_language = (1 << 23),
+		eConnect_UUIE_connectedAddress = (1 << 22),
+		eConnect_UUIE_presentationIndicator = (1 << 21),
+		eConnect_UUIE_screeningIndicator = (1 << 20),
+		eConnect_UUIE_fastConnectRefused = (1 << 19),
+		eConnect_UUIE_serviceControl = (1 << 18),
+		eConnect_UUIE_capacity = (1 << 17),
+		eConnect_UUIE_featureSet = (1 << 16),
+	} options;
+	TransportAddress h245Address;
+	Connect_UUIE_fastStart fastStart;
+} Connect_UUIE;
+
+typedef struct Alerting_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} Alerting_UUIE_fastStart;
+
+typedef struct Alerting_UUIE {	/* SEQUENCE */
+	enum {
+		eAlerting_UUIE_h245Address = (1 << 31),
+		eAlerting_UUIE_callIdentifier = (1 << 30),
+		eAlerting_UUIE_h245SecurityMode = (1 << 29),
+		eAlerting_UUIE_tokens = (1 << 28),
+		eAlerting_UUIE_cryptoTokens = (1 << 27),
+		eAlerting_UUIE_fastStart = (1 << 26),
+		eAlerting_UUIE_multipleCalls = (1 << 25),
+		eAlerting_UUIE_maintainConnection = (1 << 24),
+		eAlerting_UUIE_alertingAddress = (1 << 23),
+		eAlerting_UUIE_presentationIndicator = (1 << 22),
+		eAlerting_UUIE_screeningIndicator = (1 << 21),
+		eAlerting_UUIE_fastConnectRefused = (1 << 20),
+		eAlerting_UUIE_serviceControl = (1 << 19),
+		eAlerting_UUIE_capacity = (1 << 18),
+		eAlerting_UUIE_featureSet = (1 << 17),
+	} options;
+	TransportAddress h245Address;
+	Alerting_UUIE_fastStart fastStart;
+} Alerting_UUIE;
+
+typedef struct Information_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} Information_UUIE_fastStart;
+
+typedef struct Information_UUIE {	/* SEQUENCE */
+	enum {
+		eInformation_UUIE_callIdentifier = (1 << 31),
+		eInformation_UUIE_tokens = (1 << 30),
+		eInformation_UUIE_cryptoTokens = (1 << 29),
+		eInformation_UUIE_fastStart = (1 << 28),
+		eInformation_UUIE_fastConnectRefused = (1 << 27),
+		eInformation_UUIE_circuitInfo = (1 << 26),
+	} options;
+	Information_UUIE_fastStart fastStart;
+} Information_UUIE;
+
+typedef struct FacilityReason {	/* CHOICE */
+	enum {
+		eFacilityReason_routeCallToGatekeeper,
+		eFacilityReason_callForwarded,
+		eFacilityReason_routeCallToMC,
+		eFacilityReason_undefinedReason,
+		eFacilityReason_conferenceListChoice,
+		eFacilityReason_startH245,
+		eFacilityReason_noH245,
+		eFacilityReason_newTokens,
+		eFacilityReason_featureSetUpdate,
+		eFacilityReason_forwardedElements,
+		eFacilityReason_transportedInformation,
+	} choice;
+} FacilityReason;
+
+typedef struct Facility_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} Facility_UUIE_fastStart;
+
+typedef struct Facility_UUIE {	/* SEQUENCE */
+	enum {
+		eFacility_UUIE_alternativeAddress = (1 << 31),
+		eFacility_UUIE_alternativeAliasAddress = (1 << 30),
+		eFacility_UUIE_conferenceID = (1 << 29),
+		eFacility_UUIE_callIdentifier = (1 << 28),
+		eFacility_UUIE_destExtraCallInfo = (1 << 27),
+		eFacility_UUIE_remoteExtensionAddress = (1 << 26),
+		eFacility_UUIE_tokens = (1 << 25),
+		eFacility_UUIE_cryptoTokens = (1 << 24),
+		eFacility_UUIE_conferences = (1 << 23),
+		eFacility_UUIE_h245Address = (1 << 22),
+		eFacility_UUIE_fastStart = (1 << 21),
+		eFacility_UUIE_multipleCalls = (1 << 20),
+		eFacility_UUIE_maintainConnection = (1 << 19),
+		eFacility_UUIE_fastConnectRefused = (1 << 18),
+		eFacility_UUIE_serviceControl = (1 << 17),
+		eFacility_UUIE_circuitInfo = (1 << 16),
+		eFacility_UUIE_featureSet = (1 << 15),
+		eFacility_UUIE_destinationInfo = (1 << 14),
+		eFacility_UUIE_h245SecurityMode = (1 << 13),
+	} options;
+	FacilityReason reason;
+	TransportAddress h245Address;
+	Facility_UUIE_fastStart fastStart;
+} Facility_UUIE;
+
+typedef struct Progress_UUIE_fastStart {	/* SEQUENCE OF */
+	int count;
+	OpenLogicalChannel item[30];
+} Progress_UUIE_fastStart;
+
+typedef struct Progress_UUIE {	/* SEQUENCE */
+	enum {
+		eProgress_UUIE_h245Address = (1 << 31),
+		eProgress_UUIE_h245SecurityMode = (1 << 30),
+		eProgress_UUIE_tokens = (1 << 29),
+		eProgress_UUIE_cryptoTokens = (1 << 28),
+		eProgress_UUIE_fastStart = (1 << 27),
+		eProgress_UUIE_multipleCalls = (1 << 26),
+		eProgress_UUIE_maintainConnection = (1 << 25),
+		eProgress_UUIE_fastConnectRefused = (1 << 24),
+	} options;
+	TransportAddress h245Address;
+	Progress_UUIE_fastStart fastStart;
+} Progress_UUIE;
+
+typedef struct H323_UU_PDU_h323_message_body {	/* CHOICE */
+	enum {
+		eH323_UU_PDU_h323_message_body_setup,
+		eH323_UU_PDU_h323_message_body_callProceeding,
+		eH323_UU_PDU_h323_message_body_connect,
+		eH323_UU_PDU_h323_message_body_alerting,
+		eH323_UU_PDU_h323_message_body_information,
+		eH323_UU_PDU_h323_message_body_releaseComplete,
+		eH323_UU_PDU_h323_message_body_facility,
+		eH323_UU_PDU_h323_message_body_progress,
+		eH323_UU_PDU_h323_message_body_empty,
+		eH323_UU_PDU_h323_message_body_status,
+		eH323_UU_PDU_h323_message_body_statusInquiry,
+		eH323_UU_PDU_h323_message_body_setupAcknowledge,
+		eH323_UU_PDU_h323_message_body_notify,
+	} choice;
+	union {
+		Setup_UUIE setup;
+		CallProceeding_UUIE callProceeding;
+		Connect_UUIE connect;
+		Alerting_UUIE alerting;
+		Information_UUIE information;
+		Facility_UUIE facility;
+		Progress_UUIE progress;
+	};
+} H323_UU_PDU_h323_message_body;
+
+typedef struct RequestMessage {	/* CHOICE */
+	enum {
+		eRequestMessage_nonStandard,
+		eRequestMessage_masterSlaveDetermination,
+		eRequestMessage_terminalCapabilitySet,
+		eRequestMessage_openLogicalChannel,
+		eRequestMessage_closeLogicalChannel,
+		eRequestMessage_requestChannelClose,
+		eRequestMessage_multiplexEntrySend,
+		eRequestMessage_requestMultiplexEntry,
+		eRequestMessage_requestMode,
+		eRequestMessage_roundTripDelayRequest,
+		eRequestMessage_maintenanceLoopRequest,
+		eRequestMessage_communicationModeRequest,
+		eRequestMessage_conferenceRequest,
+		eRequestMessage_multilinkRequest,
+		eRequestMessage_logicalChannelRateRequest,
+	} choice;
+	union {
+		OpenLogicalChannel openLogicalChannel;
+	};
+} RequestMessage;
+
+typedef struct OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters {	/* CHOICE */
+	enum {
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h222LogicalChannelParameters,
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters,
+	} choice;
+	union {
+		H2250LogicalChannelParameters h2250LogicalChannelParameters;
+	};
+} OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters;
+
+typedef struct OpenLogicalChannelAck_reverseLogicalChannelParameters {	/* SEQUENCE */
+	enum {
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters_portNumber
+		    = (1 << 31),
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters
+		    = (1 << 30),
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters_replacementFor
+		    = (1 << 29),
+	} options;
+	OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters
+	    multiplexParameters;
+} OpenLogicalChannelAck_reverseLogicalChannelParameters;
+
+typedef struct H2250LogicalChannelAckParameters {	/* SEQUENCE */
+	enum {
+		eH2250LogicalChannelAckParameters_nonStandard = (1 << 31),
+		eH2250LogicalChannelAckParameters_sessionID = (1 << 30),
+		eH2250LogicalChannelAckParameters_mediaChannel = (1 << 29),
+		eH2250LogicalChannelAckParameters_mediaControlChannel =
+		    (1 << 28),
+		eH2250LogicalChannelAckParameters_dynamicRTPPayloadType =
+		    (1 << 27),
+		eH2250LogicalChannelAckParameters_flowControlToZero =
+		    (1 << 26),
+		eH2250LogicalChannelAckParameters_portNumber = (1 << 25),
+	} options;
+	H245_TransportAddress mediaChannel;
+	H245_TransportAddress mediaControlChannel;
+} H2250LogicalChannelAckParameters;
+
+typedef struct OpenLogicalChannelAck_forwardMultiplexAckParameters {	/* CHOICE */
+	enum {
+		eOpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters,
+	} choice;
+	union {
+		H2250LogicalChannelAckParameters
+		    h2250LogicalChannelAckParameters;
+	};
+} OpenLogicalChannelAck_forwardMultiplexAckParameters;
+
+typedef struct OpenLogicalChannelAck {	/* SEQUENCE */
+	enum {
+		eOpenLogicalChannelAck_reverseLogicalChannelParameters =
+		    (1 << 31),
+		eOpenLogicalChannelAck_separateStack = (1 << 30),
+		eOpenLogicalChannelAck_forwardMultiplexAckParameters =
+		    (1 << 29),
+		eOpenLogicalChannelAck_encryptionSync = (1 << 28),
+	} options;
+	OpenLogicalChannelAck_reverseLogicalChannelParameters
+	    reverseLogicalChannelParameters;
+	OpenLogicalChannelAck_forwardMultiplexAckParameters
+	    forwardMultiplexAckParameters;
+} OpenLogicalChannelAck;
+
+typedef struct ResponseMessage {	/* CHOICE */
+	enum {
+		eResponseMessage_nonStandard,
+		eResponseMessage_masterSlaveDeterminationAck,
+		eResponseMessage_masterSlaveDeterminationReject,
+		eResponseMessage_terminalCapabilitySetAck,
+		eResponseMessage_terminalCapabilitySetReject,
+		eResponseMessage_openLogicalChannelAck,
+		eResponseMessage_openLogicalChannelReject,
+		eResponseMessage_closeLogicalChannelAck,
+		eResponseMessage_requestChannelCloseAck,
+		eResponseMessage_requestChannelCloseReject,
+		eResponseMessage_multiplexEntrySendAck,
+		eResponseMessage_multiplexEntrySendReject,
+		eResponseMessage_requestMultiplexEntryAck,
+		eResponseMessage_requestMultiplexEntryReject,
+		eResponseMessage_requestModeAck,
+		eResponseMessage_requestModeReject,
+		eResponseMessage_roundTripDelayResponse,
+		eResponseMessage_maintenanceLoopAck,
+		eResponseMessage_maintenanceLoopReject,
+		eResponseMessage_communicationModeResponse,
+		eResponseMessage_conferenceResponse,
+		eResponseMessage_multilinkResponse,
+		eResponseMessage_logicalChannelRateAcknowledge,
+		eResponseMessage_logicalChannelRateReject,
+	} choice;
+	union {
+		OpenLogicalChannelAck openLogicalChannelAck;
+	};
+} ResponseMessage;
+
+typedef struct MultimediaSystemControlMessage {	/* CHOICE */
+	enum {
+		eMultimediaSystemControlMessage_request,
+		eMultimediaSystemControlMessage_response,
+		eMultimediaSystemControlMessage_command,
+		eMultimediaSystemControlMessage_indication,
+	} choice;
+	union {
+		RequestMessage request;
+		ResponseMessage response;
+	};
+} MultimediaSystemControlMessage;
+
+typedef struct H323_UU_PDU_h245Control {	/* SEQUENCE OF */
+	int count;
+	MultimediaSystemControlMessage item[4];
+} H323_UU_PDU_h245Control;
+
+typedef struct H323_UU_PDU {	/* SEQUENCE */
+	enum {
+		eH323_UU_PDU_nonStandardData = (1 << 31),
+		eH323_UU_PDU_h4501SupplementaryService = (1 << 30),
+		eH323_UU_PDU_h245Tunneling = (1 << 29),
+		eH323_UU_PDU_h245Control = (1 << 28),
+		eH323_UU_PDU_nonStandardControl = (1 << 27),
+		eH323_UU_PDU_callLinkage = (1 << 26),
+		eH323_UU_PDU_tunnelledSignallingMessage = (1 << 25),
+		eH323_UU_PDU_provisionalRespToH245Tunneling = (1 << 24),
+		eH323_UU_PDU_stimulusControl = (1 << 23),
+		eH323_UU_PDU_genericData = (1 << 22),
+	} options;
+	H323_UU_PDU_h323_message_body h323_message_body;
+	H323_UU_PDU_h245Control h245Control;
+} H323_UU_PDU;
+
+typedef struct H323_UserInformation {	/* SEQUENCE */
+	enum {
+		eH323_UserInformation_user_data = (1 << 31),
+	} options;
+	H323_UU_PDU h323_uu_pdu;
+} H323_UserInformation;
+
+typedef struct GatekeeperRequest {	/* SEQUENCE */
+	enum {
+		eGatekeeperRequest_nonStandardData = (1 << 31),
+		eGatekeeperRequest_gatekeeperIdentifier = (1 << 30),
+		eGatekeeperRequest_callServices = (1 << 29),
+		eGatekeeperRequest_endpointAlias = (1 << 28),
+		eGatekeeperRequest_alternateEndpoints = (1 << 27),
+		eGatekeeperRequest_tokens = (1 << 26),
+		eGatekeeperRequest_cryptoTokens = (1 << 25),
+		eGatekeeperRequest_authenticationCapability = (1 << 24),
+		eGatekeeperRequest_algorithmOIDs = (1 << 23),
+		eGatekeeperRequest_integrity = (1 << 22),
+		eGatekeeperRequest_integrityCheckValue = (1 << 21),
+		eGatekeeperRequest_supportsAltGK = (1 << 20),
+		eGatekeeperRequest_featureSet = (1 << 19),
+		eGatekeeperRequest_genericData = (1 << 18),
+	} options;
+	TransportAddress rasAddress;
+} GatekeeperRequest;
+
+typedef struct GatekeeperConfirm {	/* SEQUENCE */
+	enum {
+		eGatekeeperConfirm_nonStandardData = (1 << 31),
+		eGatekeeperConfirm_gatekeeperIdentifier = (1 << 30),
+		eGatekeeperConfirm_alternateGatekeeper = (1 << 29),
+		eGatekeeperConfirm_authenticationMode = (1 << 28),
+		eGatekeeperConfirm_tokens = (1 << 27),
+		eGatekeeperConfirm_cryptoTokens = (1 << 26),
+		eGatekeeperConfirm_algorithmOID = (1 << 25),
+		eGatekeeperConfirm_integrity = (1 << 24),
+		eGatekeeperConfirm_integrityCheckValue = (1 << 23),
+		eGatekeeperConfirm_featureSet = (1 << 22),
+		eGatekeeperConfirm_genericData = (1 << 21),
+	} options;
+	TransportAddress rasAddress;
+} GatekeeperConfirm;
+
+typedef struct RegistrationRequest_callSignalAddress {	/* SEQUENCE OF */
+	int count;
+	TransportAddress item[10];
+} RegistrationRequest_callSignalAddress;
+
+typedef struct RegistrationRequest_rasAddress {	/* SEQUENCE OF */
+	int count;
+	TransportAddress item[10];
+} RegistrationRequest_rasAddress;
+
+typedef struct RegistrationRequest {	/* SEQUENCE */
+	enum {
+		eRegistrationRequest_nonStandardData = (1 << 31),
+		eRegistrationRequest_terminalAlias = (1 << 30),
+		eRegistrationRequest_gatekeeperIdentifier = (1 << 29),
+		eRegistrationRequest_alternateEndpoints = (1 << 28),
+		eRegistrationRequest_timeToLive = (1 << 27),
+		eRegistrationRequest_tokens = (1 << 26),
+		eRegistrationRequest_cryptoTokens = (1 << 25),
+		eRegistrationRequest_integrityCheckValue = (1 << 24),
+		eRegistrationRequest_keepAlive = (1 << 23),
+		eRegistrationRequest_endpointIdentifier = (1 << 22),
+		eRegistrationRequest_willSupplyUUIEs = (1 << 21),
+		eRegistrationRequest_maintainConnection = (1 << 20),
+		eRegistrationRequest_alternateTransportAddresses = (1 << 19),
+		eRegistrationRequest_additiveRegistration = (1 << 18),
+		eRegistrationRequest_terminalAliasPattern = (1 << 17),
+		eRegistrationRequest_supportsAltGK = (1 << 16),
+		eRegistrationRequest_usageReportingCapability = (1 << 15),
+		eRegistrationRequest_multipleCalls = (1 << 14),
+		eRegistrationRequest_supportedH248Packages = (1 << 13),
+		eRegistrationRequest_callCreditCapability = (1 << 12),
+		eRegistrationRequest_capacityReportingCapability = (1 << 11),
+		eRegistrationRequest_capacity = (1 << 10),
+		eRegistrationRequest_featureSet = (1 << 9),
+		eRegistrationRequest_genericData = (1 << 8),
+	} options;
+	RegistrationRequest_callSignalAddress callSignalAddress;
+	RegistrationRequest_rasAddress rasAddress;
+	unsigned timeToLive;
+} RegistrationRequest;
+
+typedef struct RegistrationConfirm_callSignalAddress {	/* SEQUENCE OF */
+	int count;
+	TransportAddress item[10];
+} RegistrationConfirm_callSignalAddress;
+
+typedef struct RegistrationConfirm {	/* SEQUENCE */
+	enum {
+		eRegistrationConfirm_nonStandardData = (1 << 31),
+		eRegistrationConfirm_terminalAlias = (1 << 30),
+		eRegistrationConfirm_gatekeeperIdentifier = (1 << 29),
+		eRegistrationConfirm_alternateGatekeeper = (1 << 28),
+		eRegistrationConfirm_timeToLive = (1 << 27),
+		eRegistrationConfirm_tokens = (1 << 26),
+		eRegistrationConfirm_cryptoTokens = (1 << 25),
+		eRegistrationConfirm_integrityCheckValue = (1 << 24),
+		eRegistrationConfirm_willRespondToIRR = (1 << 23),
+		eRegistrationConfirm_preGrantedARQ = (1 << 22),
+		eRegistrationConfirm_maintainConnection = (1 << 21),
+		eRegistrationConfirm_serviceControl = (1 << 20),
+		eRegistrationConfirm_supportsAdditiveRegistration = (1 << 19),
+		eRegistrationConfirm_terminalAliasPattern = (1 << 18),
+		eRegistrationConfirm_supportedPrefixes = (1 << 17),
+		eRegistrationConfirm_usageSpec = (1 << 16),
+		eRegistrationConfirm_featureServerAlias = (1 << 15),
+		eRegistrationConfirm_capacityReportingSpec = (1 << 14),
+		eRegistrationConfirm_featureSet = (1 << 13),
+		eRegistrationConfirm_genericData = (1 << 12),
+	} options;
+	RegistrationConfirm_callSignalAddress callSignalAddress;
+	unsigned timeToLive;
+} RegistrationConfirm;
+
+typedef struct UnregistrationRequest_callSignalAddress {	/* SEQUENCE OF */
+	int count;
+	TransportAddress item[10];
+} UnregistrationRequest_callSignalAddress;
+
+typedef struct UnregistrationRequest {	/* SEQUENCE */
+	enum {
+		eUnregistrationRequest_endpointAlias = (1 << 31),
+		eUnregistrationRequest_nonStandardData = (1 << 30),
+		eUnregistrationRequest_endpointIdentifier = (1 << 29),
+		eUnregistrationRequest_alternateEndpoints = (1 << 28),
+		eUnregistrationRequest_gatekeeperIdentifier = (1 << 27),
+		eUnregistrationRequest_tokens = (1 << 26),
+		eUnregistrationRequest_cryptoTokens = (1 << 25),
+		eUnregistrationRequest_integrityCheckValue = (1 << 24),
+		eUnregistrationRequest_reason = (1 << 23),
+		eUnregistrationRequest_endpointAliasPattern = (1 << 22),
+		eUnregistrationRequest_supportedPrefixes = (1 << 21),
+		eUnregistrationRequest_alternateGatekeeper = (1 << 20),
+		eUnregistrationRequest_genericData = (1 << 19),
+	} options;
+	UnregistrationRequest_callSignalAddress callSignalAddress;
+} UnregistrationRequest;
+
+typedef struct AdmissionRequest {	/* SEQUENCE */
+	enum {
+		eAdmissionRequest_callModel = (1 << 31),
+		eAdmissionRequest_destinationInfo = (1 << 30),
+		eAdmissionRequest_destCallSignalAddress = (1 << 29),
+		eAdmissionRequest_destExtraCallInfo = (1 << 28),
+		eAdmissionRequest_srcCallSignalAddress = (1 << 27),
+		eAdmissionRequest_nonStandardData = (1 << 26),
+		eAdmissionRequest_callServices = (1 << 25),
+		eAdmissionRequest_canMapAlias = (1 << 24),
+		eAdmissionRequest_callIdentifier = (1 << 23),
+		eAdmissionRequest_srcAlternatives = (1 << 22),
+		eAdmissionRequest_destAlternatives = (1 << 21),
+		eAdmissionRequest_gatekeeperIdentifier = (1 << 20),
+		eAdmissionRequest_tokens = (1 << 19),
+		eAdmissionRequest_cryptoTokens = (1 << 18),
+		eAdmissionRequest_integrityCheckValue = (1 << 17),
+		eAdmissionRequest_transportQOS = (1 << 16),
+		eAdmissionRequest_willSupplyUUIEs = (1 << 15),
+		eAdmissionRequest_callLinkage = (1 << 14),
+		eAdmissionRequest_gatewayDataRate = (1 << 13),
+		eAdmissionRequest_capacity = (1 << 12),
+		eAdmissionRequest_circuitInfo = (1 << 11),
+		eAdmissionRequest_desiredProtocols = (1 << 10),
+		eAdmissionRequest_desiredTunnelledProtocol = (1 << 9),
+		eAdmissionRequest_featureSet = (1 << 8),
+		eAdmissionRequest_genericData = (1 << 7),
+	} options;
+	TransportAddress destCallSignalAddress;
+	TransportAddress srcCallSignalAddress;
+} AdmissionRequest;
+
+typedef struct AdmissionConfirm {	/* SEQUENCE */
+	enum {
+		eAdmissionConfirm_irrFrequency = (1 << 31),
+		eAdmissionConfirm_nonStandardData = (1 << 30),
+		eAdmissionConfirm_destinationInfo = (1 << 29),
+		eAdmissionConfirm_destExtraCallInfo = (1 << 28),
+		eAdmissionConfirm_destinationType = (1 << 27),
+		eAdmissionConfirm_remoteExtensionAddress = (1 << 26),
+		eAdmissionConfirm_alternateEndpoints = (1 << 25),
+		eAdmissionConfirm_tokens = (1 << 24),
+		eAdmissionConfirm_cryptoTokens = (1 << 23),
+		eAdmissionConfirm_integrityCheckValue = (1 << 22),
+		eAdmissionConfirm_transportQOS = (1 << 21),
+		eAdmissionConfirm_willRespondToIRR = (1 << 20),
+		eAdmissionConfirm_uuiesRequested = (1 << 19),
+		eAdmissionConfirm_language = (1 << 18),
+		eAdmissionConfirm_alternateTransportAddresses = (1 << 17),
+		eAdmissionConfirm_useSpecifiedTransport = (1 << 16),
+		eAdmissionConfirm_circuitInfo = (1 << 15),
+		eAdmissionConfirm_usageSpec = (1 << 14),
+		eAdmissionConfirm_supportedProtocols = (1 << 13),
+		eAdmissionConfirm_serviceControl = (1 << 12),
+		eAdmissionConfirm_multipleCalls = (1 << 11),
+		eAdmissionConfirm_featureSet = (1 << 10),
+		eAdmissionConfirm_genericData = (1 << 9),
+	} options;
+	TransportAddress destCallSignalAddress;
+} AdmissionConfirm;
+
+typedef struct LocationRequest {	/* SEQUENCE */
+	enum {
+		eLocationRequest_endpointIdentifier = (1 << 31),
+		eLocationRequest_nonStandardData = (1 << 30),
+		eLocationRequest_sourceInfo = (1 << 29),
+		eLocationRequest_canMapAlias = (1 << 28),
+		eLocationRequest_gatekeeperIdentifier = (1 << 27),
+		eLocationRequest_tokens = (1 << 26),
+		eLocationRequest_cryptoTokens = (1 << 25),
+		eLocationRequest_integrityCheckValue = (1 << 24),
+		eLocationRequest_desiredProtocols = (1 << 23),
+		eLocationRequest_desiredTunnelledProtocol = (1 << 22),
+		eLocationRequest_featureSet = (1 << 21),
+		eLocationRequest_genericData = (1 << 20),
+		eLocationRequest_hopCount = (1 << 19),
+		eLocationRequest_circuitInfo = (1 << 18),
+	} options;
+	TransportAddress replyAddress;
+} LocationRequest;
+
+typedef struct LocationConfirm {	/* SEQUENCE */
+	enum {
+		eLocationConfirm_nonStandardData = (1 << 31),
+		eLocationConfirm_destinationInfo = (1 << 30),
+		eLocationConfirm_destExtraCallInfo = (1 << 29),
+		eLocationConfirm_destinationType = (1 << 28),
+		eLocationConfirm_remoteExtensionAddress = (1 << 27),
+		eLocationConfirm_alternateEndpoints = (1 << 26),
+		eLocationConfirm_tokens = (1 << 25),
+		eLocationConfirm_cryptoTokens = (1 << 24),
+		eLocationConfirm_integrityCheckValue = (1 << 23),
+		eLocationConfirm_alternateTransportAddresses = (1 << 22),
+		eLocationConfirm_supportedProtocols = (1 << 21),
+		eLocationConfirm_multipleCalls = (1 << 20),
+		eLocationConfirm_featureSet = (1 << 19),
+		eLocationConfirm_genericData = (1 << 18),
+		eLocationConfirm_circuitInfo = (1 << 17),
+		eLocationConfirm_serviceControl = (1 << 16),
+	} options;
+	TransportAddress callSignalAddress;
+	TransportAddress rasAddress;
+} LocationConfirm;
+
+typedef struct InfoRequestResponse_callSignalAddress {	/* SEQUENCE OF */
+	int count;
+	TransportAddress item[10];
+} InfoRequestResponse_callSignalAddress;
+
+typedef struct InfoRequestResponse {	/* SEQUENCE */
+	enum {
+		eInfoRequestResponse_nonStandardData = (1 << 31),
+		eInfoRequestResponse_endpointAlias = (1 << 30),
+		eInfoRequestResponse_perCallInfo = (1 << 29),
+		eInfoRequestResponse_tokens = (1 << 28),
+		eInfoRequestResponse_cryptoTokens = (1 << 27),
+		eInfoRequestResponse_integrityCheckValue = (1 << 26),
+		eInfoRequestResponse_needResponse = (1 << 25),
+		eInfoRequestResponse_capacity = (1 << 24),
+		eInfoRequestResponse_irrStatus = (1 << 23),
+		eInfoRequestResponse_unsolicited = (1 << 22),
+		eInfoRequestResponse_genericData = (1 << 21),
+	} options;
+	TransportAddress rasAddress;
+	InfoRequestResponse_callSignalAddress callSignalAddress;
+} InfoRequestResponse;
+
+typedef struct RasMessage {	/* CHOICE */
+	enum {
+		eRasMessage_gatekeeperRequest,
+		eRasMessage_gatekeeperConfirm,
+		eRasMessage_gatekeeperReject,
+		eRasMessage_registrationRequest,
+		eRasMessage_registrationConfirm,
+		eRasMessage_registrationReject,
+		eRasMessage_unregistrationRequest,
+		eRasMessage_unregistrationConfirm,
+		eRasMessage_unregistrationReject,
+		eRasMessage_admissionRequest,
+		eRasMessage_admissionConfirm,
+		eRasMessage_admissionReject,
+		eRasMessage_bandwidthRequest,
+		eRasMessage_bandwidthConfirm,
+		eRasMessage_bandwidthReject,
+		eRasMessage_disengageRequest,
+		eRasMessage_disengageConfirm,
+		eRasMessage_disengageReject,
+		eRasMessage_locationRequest,
+		eRasMessage_locationConfirm,
+		eRasMessage_locationReject,
+		eRasMessage_infoRequest,
+		eRasMessage_infoRequestResponse,
+		eRasMessage_nonStandardMessage,
+		eRasMessage_unknownMessageResponse,
+		eRasMessage_requestInProgress,
+		eRasMessage_resourcesAvailableIndicate,
+		eRasMessage_resourcesAvailableConfirm,
+		eRasMessage_infoRequestAck,
+		eRasMessage_infoRequestNak,
+		eRasMessage_serviceControlIndication,
+		eRasMessage_serviceControlResponse,
+	} choice;
+	union {
+		GatekeeperRequest gatekeeperRequest;
+		GatekeeperConfirm gatekeeperConfirm;
+		RegistrationRequest registrationRequest;
+		RegistrationConfirm registrationConfirm;
+		UnregistrationRequest unregistrationRequest;
+		AdmissionRequest admissionRequest;
+		AdmissionConfirm admissionConfirm;
+		LocationRequest locationRequest;
+		LocationConfirm locationConfirm;
+		InfoRequestResponse infoRequestResponse;
+	};
+} RasMessage;
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c
index e0b5926..9b6e19b 100644
--- a/net/ipv4/netfilter/ip_conntrack_netlink.c
+++ b/net/ipv4/netfilter/ip_conntrack_netlink.c
@@ -4,7 +4,7 @@
  * (C) 2001 by Jay Schulist <jschlst@samba.org>
  * (C) 2002-2005 by Harald Welte <laforge@gnumonks.org>
  * (C) 2003 by Patrick Mchardy <kaber@trash.net>
- * (C) 2005 by Pablo Neira Ayuso <pablo@eurodev.net>
+ * (C) 2005-2006 by Pablo Neira Ayuso <pablo@eurodev.net>
  *
  * I've reworked this stuff to use attributes instead of conntrack 
  * structures. 5.44 am. I need more tea. --pablo 05/07/11.
@@ -53,20 +53,18 @@ static char __initdata version[] = "0.90";
 
 static inline int
 ctnetlink_dump_tuples_proto(struct sk_buff *skb, 
-			    const struct ip_conntrack_tuple *tuple)
+			    const struct ip_conntrack_tuple *tuple,
+			    struct ip_conntrack_protocol *proto)
 {
-	struct ip_conntrack_protocol *proto;
 	int ret = 0;
+	struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_PROTO);
 
 	NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
 
-	/* If no protocol helper is found, this function will return the
-	 * generic protocol helper, so proto won't *ever* be NULL */
-	proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
 	if (likely(proto->tuple_to_nfattr))
 		ret = proto->tuple_to_nfattr(skb, tuple);
 	
-	ip_conntrack_proto_put(proto);
+	NFA_NEST_END(skb, nest_parms);
 
 	return ret;
 
@@ -75,28 +73,41 @@ nfattr_failure:
 }
 
 static inline int
-ctnetlink_dump_tuples(struct sk_buff *skb, 
-		      const struct ip_conntrack_tuple *tuple)
+ctnetlink_dump_tuples_ip(struct sk_buff *skb,
+			 const struct ip_conntrack_tuple *tuple)
 {
-	struct nfattr *nest_parms;
-	int ret;
+	struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_IP);
 	
-	nest_parms = NFA_NEST(skb, CTA_TUPLE_IP);
 	NFA_PUT(skb, CTA_IP_V4_SRC, sizeof(u_int32_t), &tuple->src.ip);
 	NFA_PUT(skb, CTA_IP_V4_DST, sizeof(u_int32_t), &tuple->dst.ip);
-	NFA_NEST_END(skb, nest_parms);
 
-	nest_parms = NFA_NEST(skb, CTA_TUPLE_PROTO);
-	ret = ctnetlink_dump_tuples_proto(skb, tuple);
 	NFA_NEST_END(skb, nest_parms);
 
-	return ret;
+	return 0;
 
 nfattr_failure:
 	return -1;
 }
 
 static inline int
+ctnetlink_dump_tuples(struct sk_buff *skb,
+		      const struct ip_conntrack_tuple *tuple)
+{
+	int ret;
+	struct ip_conntrack_protocol *proto;
+
+	ret = ctnetlink_dump_tuples_ip(skb, tuple);
+	if (unlikely(ret < 0))
+		return ret;
+
+	proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
+	ret = ctnetlink_dump_tuples_proto(skb, tuple, proto);
+	ip_conntrack_proto_put(proto);
+
+	return ret;
+}
+
+static inline int
 ctnetlink_dump_status(struct sk_buff *skb, const struct ip_conntrack *ct)
 {
 	u_int32_t status = htonl((u_int32_t) ct->status);
@@ -327,9 +338,10 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
 		group = NFNLGRP_CONNTRACK_UPDATE;
 	} else 
 		return NOTIFY_DONE;
-	
-  /* FIXME: Check if there are any listeners before, don't hurt performance */
-	
+
+	if (!nfnetlink_has_listeners(group))
+		return NOTIFY_DONE;
+
 	skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
 	if (!skb)
 		return NOTIFY_DONE;
@@ -1134,6 +1146,33 @@ nfattr_failure:
 }			
 
 static inline int
+ctnetlink_exp_dump_mask(struct sk_buff *skb,
+			const struct ip_conntrack_tuple *tuple,
+			const struct ip_conntrack_tuple *mask)
+{
+	int ret;
+	struct ip_conntrack_protocol *proto;
+	struct nfattr *nest_parms = NFA_NEST(skb, CTA_EXPECT_MASK);
+
+	ret = ctnetlink_dump_tuples_ip(skb, mask);
+	if (unlikely(ret < 0))
+		goto nfattr_failure;
+
+	proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
+	ret = ctnetlink_dump_tuples_proto(skb, mask, proto);
+	ip_conntrack_proto_put(proto);
+	if (unlikely(ret < 0))
+		goto nfattr_failure;
+
+	NFA_NEST_END(skb, nest_parms);
+
+	return 0;
+
+nfattr_failure:
+	return -1;
+}
+
+static inline int
 ctnetlink_exp_dump_expect(struct sk_buff *skb,
                           const struct ip_conntrack_expect *exp)
 {
@@ -1143,7 +1182,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
 
 	if (ctnetlink_exp_dump_tuple(skb, &exp->tuple, CTA_EXPECT_TUPLE) < 0)
 		goto nfattr_failure;
-	if (ctnetlink_exp_dump_tuple(skb, &exp->mask, CTA_EXPECT_MASK) < 0)
+	if (ctnetlink_exp_dump_mask(skb, &exp->tuple, &exp->mask) < 0)
 		goto nfattr_failure;
 	if (ctnetlink_exp_dump_tuple(skb,
 				 &master->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
diff --git a/net/ipv4/netfilter/ip_nat_helper_h323.c b/net/ipv4/netfilter/ip_nat_helper_h323.c
new file mode 100644
index 0000000..a0bc883
--- /dev/null
+++ b/net/ipv4/netfilter/ip_nat_helper_h323.c
@@ -0,0 +1,605 @@
+/*
+ * 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>
+ *
+ * Changes:
+ *	2006-02-01 - initial version 0.1
+ *
+ *	2006-02-20 - version 0.2
+ *	  1. Changed source format to follow kernel conventions
+ *	  2. Deleted some unnecessary structures
+ *	  3. Minor fixes
+ *
+ * 	2006-03-10 - version 0.3
+ * 	  1. Added support for multiple TPKTs in one packet (suggested by
+ * 	     Patrick McHardy)
+ * 	  2. Added support for non-linear skb (based on Patrick McHardy's patch)
+ * 	  3. Eliminated unnecessary return code
+ *
+ * 	2006-03-15 - version 0.4
+ * 	  1. Added support for T.120 channels
+ * 	  2. Added parameter gkrouted_only (suggested by Patrick McHardy)
+ */
+
+#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>
+
+#include "ip_conntrack_helper_h323_asn1.h"
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+extern int get_h245_addr(unsigned char *data, H245_TransportAddress * addr,
+			 u_int32_t * ip, u_int16_t * port);
+extern int get_h225_addr(unsigned char *data, TransportAddress * addr,
+			 u_int32_t * ip, u_int16_t * port);
+extern void ip_conntrack_h245_expect(struct ip_conntrack *new,
+				     struct ip_conntrack_expect *this);
+extern void ip_conntrack_q931_expect(struct ip_conntrack *new,
+				     struct ip_conntrack_expect *this);
+extern int (*set_h245_addr_hook) (struct sk_buff ** pskb,
+				  unsigned char **data, int dataoff,
+				  H245_TransportAddress * addr,
+				  u_int32_t ip, u_int16_t port);
+extern int (*set_h225_addr_hook) (struct sk_buff ** pskb,
+				  unsigned char **data, int dataoff,
+				  TransportAddress * addr,
+				  u_int32_t ip, u_int16_t port);
+extern int (*set_sig_addr_hook) (struct sk_buff ** pskb,
+				 struct ip_conntrack * ct,
+				 enum ip_conntrack_info ctinfo,
+				 unsigned char **data,
+				 TransportAddress * addr, int count);
+extern int (*set_ras_addr_hook) (struct sk_buff ** pskb,
+				 struct ip_conntrack * ct,
+				 enum ip_conntrack_info ctinfo,
+				 unsigned char **data,
+				 TransportAddress * addr, int count);
+extern int (*nat_rtp_rtcp_hook) (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);
+extern int (*nat_t120_hook) (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);
+extern int (*nat_h245_hook) (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);
+extern int (*nat_q931_hook) (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);
+
+
+/****************************************************************************/
+static int set_addr(struct sk_buff **pskb,
+		    unsigned char **data, int dataoff,
+		    unsigned int addroff, u_int32_t ip, u_int16_t port)
+{
+	enum ip_conntrack_info ctinfo;
+	struct ip_conntrack *ct = ip_conntrack_get(*pskb, &ctinfo);
+	struct {
+		u_int32_t ip;
+		u_int16_t 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,
+			 u_int32_t 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,
+			 u_int32_t 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;
+	u_int32_t 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;
+	u_int32_t 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;
+	u_int32_t 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 int __init init(void)
+{
+	BUG_ON(set_h245_addr_hook != NULL);
+	BUG_ON(set_h225_addr_hook != NULL);
+	BUG_ON(set_sig_addr_hook != NULL);
+	BUG_ON(set_ras_addr_hook != NULL);
+	BUG_ON(nat_rtp_rtcp_hook != NULL);
+	BUG_ON(nat_t120_hook != NULL);
+	BUG_ON(nat_h245_hook != NULL);
+	BUG_ON(nat_q931_hook != NULL);
+
+	set_h245_addr_hook = set_h245_addr;
+	set_h225_addr_hook = set_h225_addr;
+	set_sig_addr_hook = set_sig_addr;
+	set_ras_addr_hook = set_ras_addr;
+	nat_rtp_rtcp_hook = nat_rtp_rtcp;
+	nat_t120_hook = nat_t120;
+	nat_h245_hook = nat_h245;
+	nat_q931_hook = nat_q931;
+
+	DEBUGP("ip_nat_h323: init success\n");
+	return 0;
+}
+
+/****************************************************************************/
+static void __exit fini(void)
+{
+	set_h245_addr_hook = NULL;
+	set_h225_addr_hook = NULL;
+	set_sig_addr_hook = NULL;
+	set_ras_addr_hook = NULL;
+	nat_rtp_rtcp_hook = NULL;
+	nat_t120_hook = NULL;
+	nat_h245_hook = NULL;
+	nat_q931_hook = NULL;
+	synchronize_net();
+}
+
+/****************************************************************************/
+module_init(init);
+module_exit(fini);
+
+MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
+MODULE_DESCRIPTION("H.323 NAT helper");
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/ip_nat_helper_pptp.c b/net/ipv4/netfilter/ip_nat_helper_pptp.c
index ac004895..b9c016c 100644
--- a/net/ipv4/netfilter/ip_nat_helper_pptp.c
+++ b/net/ipv4/netfilter/ip_nat_helper_pptp.c
@@ -52,6 +52,8 @@
 
 #define IP_NAT_PPTP_VERSION "3.0"
 
+#define REQ_CID(req, off)		(*(u_int16_t *)((char *)(req) + (off)))
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
 MODULE_DESCRIPTION("Netfilter NAT helper module for PPTP");
@@ -198,7 +200,7 @@ pptp_outbound_pkt(struct sk_buff **pskb,
 	/* only OUT_CALL_REQUEST, IN_CALL_REPLY, CALL_CLEAR_REQUEST pass
 	 * down to here */
 	DEBUGP("altering call id from 0x%04x to 0x%04x\n",
-		ntohs(*(u_int16_t *)pptpReq + cid_off), ntohs(new_callid));
+		ntohs(REQ_CID(pptpReq, cid_off)), ntohs(new_callid));
 
 	/* mangle packet */
 	if (ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
@@ -342,7 +344,7 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 
 	/* mangle packet */
 	DEBUGP("altering peer call id from 0x%04x to 0x%04x\n",
-		ntohs(*(u_int16_t *)pptpReq + pcid_off), ntohs(new_pcid));
+		ntohs(REQ_CID(pptpReq, pcid_off)), ntohs(new_pcid));
 
 	if (ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
 	                             pcid_off + sizeof(struct pptp_pkt_hdr) +
@@ -353,7 +355,7 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 
 	if (new_cid) {
 		DEBUGP("altering call id from 0x%04x to 0x%04x\n",
-			ntohs(*(u_int16_t *)pptpReq + cid_off), ntohs(new_cid));
+			ntohs(REQ_CID(pptpReq, cid_off)), ntohs(new_cid));
 		if (ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
 		                             cid_off + sizeof(struct pptp_pkt_hdr) +
 					     sizeof(struct PptpControlHeader),
diff --git a/net/ipv4/netfilter/ip_nat_rule.c b/net/ipv4/netfilter/ip_nat_rule.c
index 1de8628..efba8c4 100644
--- a/net/ipv4/netfilter/ip_nat_rule.c
+++ b/net/ipv4/netfilter/ip_nat_rule.c
@@ -103,6 +103,7 @@ static unsigned int ipt_snat_target(struct sk_buff **pskb,
 				    const struct net_device *in,
 				    const struct net_device *out,
 				    unsigned int hooknum,
+				    const struct ipt_target *target,
 				    const void *targinfo,
 				    void *userinfo)
 {
@@ -145,6 +146,7 @@ static unsigned int ipt_dnat_target(struct sk_buff **pskb,
 				    const struct net_device *in,
 				    const struct net_device *out,
 				    unsigned int hooknum,
+				    const struct ipt_target *target,
 				    const void *targinfo,
 				    void *userinfo)
 {
@@ -170,6 +172,7 @@ static unsigned int ipt_dnat_target(struct sk_buff **pskb,
 
 static int ipt_snat_checkentry(const char *tablename,
 			       const void *entry,
+			       const struct ipt_target *target,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hook_mask)
@@ -181,28 +184,12 @@ static int ipt_snat_checkentry(const char *tablename,
 		printk("SNAT: multiple ranges no longer supported\n");
 		return 0;
 	}
-
-	if (targinfosize != IPT_ALIGN(sizeof(struct ip_nat_multi_range_compat))) {
-		DEBUGP("SNAT: Target size %u wrong for %u ranges\n",
-		       targinfosize, mr->rangesize);
-		return 0;
-	}
-
-	/* Only allow these for NAT. */
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP("SNAT: wrong table %s\n", tablename);
-		return 0;
-	}
-
-	if (hook_mask & ~(1 << NF_IP_POST_ROUTING)) {
-		DEBUGP("SNAT: hook mask 0x%x bad\n", hook_mask);
-		return 0;
-	}
 	return 1;
 }
 
 static int ipt_dnat_checkentry(const char *tablename,
 			       const void *entry,
+			       const struct ipt_target *target,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hook_mask)
@@ -214,24 +201,6 @@ static int ipt_dnat_checkentry(const char *tablename,
 		printk("DNAT: multiple ranges no longer supported\n");
 		return 0;
 	}
-
-	if (targinfosize != IPT_ALIGN(sizeof(struct ip_nat_multi_range_compat))) {
-		DEBUGP("DNAT: Target size %u wrong for %u ranges\n",
-		       targinfosize, mr->rangesize);
-		return 0;
-	}
-
-	/* Only allow these for NAT. */
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP("DNAT: wrong table %s\n", tablename);
-		return 0;
-	}
-
-	if (hook_mask & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT))) {
-		DEBUGP("DNAT: hook mask 0x%x bad\n", hook_mask);
-		return 0;
-	}
-	
 	return 1;
 }
 
@@ -299,12 +268,18 @@ int ip_nat_rule_find(struct sk_buff **pskb,
 static struct ipt_target ipt_snat_reg = {
 	.name		= "SNAT",
 	.target		= ipt_snat_target,
+	.targetsize	= sizeof(struct ip_nat_multi_range_compat),
+	.table		= "nat",
+	.hooks		= 1 << NF_IP_POST_ROUTING,
 	.checkentry	= ipt_snat_checkentry,
 };
 
 static struct ipt_target ipt_dnat_reg = {
 	.name		= "DNAT",
 	.target		= ipt_dnat_target,
+	.targetsize	= sizeof(struct ip_nat_multi_range_compat),
+	.table		= "nat",
+	.hooks		= 1 << NF_IP_PRE_ROUTING,
 	.checkentry	= ipt_dnat_checkentry,
 };
 
diff --git a/net/ipv4/netfilter/ip_nat_snmp_basic.c b/net/ipv4/netfilter/ip_nat_snmp_basic.c
index 4f95d47..f029da2 100644
--- a/net/ipv4/netfilter/ip_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/ip_nat_snmp_basic.c
@@ -250,6 +250,7 @@ static unsigned char asn1_header_decode(struct asn1_ctx *ctx,
 	if (!asn1_id_decode(ctx, cls, con, tag))
 		return 0;
 		
+	def = len = 0;
 	if (!asn1_length_decode(ctx, &def, &len))
 		return 0;
 		
@@ -669,7 +670,7 @@ static unsigned char snmp_object_decode(struct asn1_ctx *ctx,
 	unsigned char *eoc, *end, *p;
 	unsigned long *lp, *id;
 	unsigned long ul;
-	long  l;
+	long l;
 	
 	*obj = NULL;
 	id = NULL;
@@ -699,11 +700,13 @@ static unsigned char snmp_object_decode(struct asn1_ctx *ctx,
 		return 0;
 	}
 	
+	type = 0;
 	if (!snmp_tag_cls2syntax(tag, cls, &type)) {
 		kfree(id);
 		return 0;
 	}
 	
+	l = 0;
 	switch (type) {
 		case SNMP_INTEGER:
 			len = sizeof(long);
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 36339eb..1655866 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -35,6 +35,7 @@
 #include <linux/sysctl.h>
 #include <linux/proc_fs.h>
 #include <linux/security.h>
+#include <linux/mutex.h>
 #include <net/sock.h>
 #include <net/route.h>
 
@@ -61,7 +62,7 @@ static unsigned int queue_dropped = 0;
 static unsigned int queue_user_dropped = 0;
 static struct sock *ipqnl;
 static LIST_HEAD(queue_list);
-static DECLARE_MUTEX(ipqnl_sem);
+static DEFINE_MUTEX(ipqnl_mutex);
 
 static void
 ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict)
@@ -524,7 +525,7 @@ ipq_rcv_skb(struct sk_buff *skb)
 	write_unlock_bh(&queue_lock);
 	
 	status = ipq_receive_peer(NLMSG_DATA(nlh), type,
-	                          skblen - NLMSG_LENGTH(0));
+	                          nlmsglen - NLMSG_LENGTH(0));
 	if (status < 0)
 		RCV_SKB_FAIL(status);
 		
@@ -539,7 +540,7 @@ ipq_rcv_sk(struct sock *sk, int len)
 	struct sk_buff *skb;
 	unsigned int qlen;
 
-	down(&ipqnl_sem);
+	mutex_lock(&ipqnl_mutex);
 			
 	for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) {
 		skb = skb_dequeue(&sk->sk_receive_queue);
@@ -547,7 +548,7 @@ ipq_rcv_sk(struct sock *sk, int len)
 		kfree_skb(skb);
 	}
 		
-	up(&ipqnl_sem);
+	mutex_unlock(&ipqnl_mutex);
 }
 
 static int
@@ -708,8 +709,8 @@ cleanup_sysctl:
 	
 cleanup_ipqnl:
 	sock_release(ipqnl->sk_socket);
-	down(&ipqnl_sem);
-	up(&ipqnl_sem);
+	mutex_lock(&ipqnl_mutex);
+	mutex_unlock(&ipqnl_mutex);
 	
 cleanup_netlink_notifier:
 	netlink_unregister_notifier(&ipq_nl_notifier);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 16f47c6..a7b194c 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -25,7 +25,7 @@
 #include <linux/icmp.h>
 #include <net/ip.h>
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <linux/proc_fs.h>
 #include <linux/err.h>
 #include <linux/cpumask.h>
@@ -179,6 +179,7 @@ ipt_error(struct sk_buff **pskb,
 	  const struct net_device *in,
 	  const struct net_device *out,
 	  unsigned int hooknum,
+	  const struct xt_target *target,
 	  const void *targinfo,
 	  void *userinfo)
 {
@@ -197,8 +198,8 @@ int do_match(struct ipt_entry_match *m,
 	     int *hotdrop)
 {
 	/* Stop iteration if it doesn't match */
-	if (!m->u.kernel.match->match(skb, in, out, m->data, offset, 
-	    skb->nh.iph->ihl*4, hotdrop))
+	if (!m->u.kernel.match->match(skb, in, out, m->u.kernel.match, m->data,
+				      offset, skb->nh.iph->ihl*4, hotdrop))
 		return 1;
 	else
 		return 0;
@@ -305,6 +306,7 @@ ipt_do_table(struct sk_buff **pskb,
 				verdict = t->u.kernel.target->target(pskb,
 								     in, out,
 								     hook,
+								     t->u.kernel.target,
 								     t->data,
 								     userdata);
 
@@ -464,7 +466,7 @@ cleanup_match(struct ipt_entry_match *m, unsigned int *i)
 		return 1;
 
 	if (m->u.kernel.match->destroy)
-		m->u.kernel.match->destroy(m->data,
+		m->u.kernel.match->destroy(m->u.kernel.match, m->data,
 					   m->u.match_size - sizeof(*m));
 	module_put(m->u.kernel.match->me);
 	return 0;
@@ -477,21 +479,12 @@ standard_check(const struct ipt_entry_target *t,
 	struct ipt_standard_target *targ = (void *)t;
 
 	/* Check standard info. */
-	if (t->u.target_size
-	    != IPT_ALIGN(sizeof(struct ipt_standard_target))) {
-		duprintf("standard_check: target size %u != %u\n",
-			 t->u.target_size,
-			 IPT_ALIGN(sizeof(struct ipt_standard_target)));
-		return 0;
-	}
-
 	if (targ->verdict >= 0
 	    && targ->verdict > max_offset - sizeof(struct ipt_entry)) {
 		duprintf("ipt_standard_check: bad verdict (%i)\n",
 			 targ->verdict);
 		return 0;
 	}
-
 	if (targ->verdict < -NF_MAX_VERDICT - 1) {
 		duprintf("ipt_standard_check: bad negative verdict (%i)\n",
 			 targ->verdict);
@@ -508,6 +501,7 @@ check_match(struct ipt_entry_match *m,
 	    unsigned int *i)
 {
 	struct ipt_match *match;
+	int ret;
 
 	match = try_then_request_module(xt_find_match(AF_INET, m->u.user.name,
 						   m->u.user.revision),
@@ -518,18 +512,27 @@ check_match(struct ipt_entry_match *m,
 	}
 	m->u.kernel.match = match;
 
+	ret = xt_check_match(match, AF_INET, m->u.match_size - sizeof(*m),
+			     name, hookmask, ip->proto,
+			     ip->invflags & IPT_INV_PROTO);
+	if (ret)
+		goto err;
+
 	if (m->u.kernel.match->checkentry
-	    && !m->u.kernel.match->checkentry(name, ip, m->data,
+	    && !m->u.kernel.match->checkentry(name, ip, match, m->data,
 					      m->u.match_size - sizeof(*m),
 					      hookmask)) {
-		module_put(m->u.kernel.match->me);
 		duprintf("ip_tables: check failed for `%s'.\n",
 			 m->u.kernel.match->name);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err;
 	}
 
 	(*i)++;
 	return 0;
+err:
+	module_put(m->u.kernel.match->me);
+	return ret;
 }
 
 static struct ipt_target ipt_standard_target;
@@ -565,26 +568,32 @@ check_entry(struct ipt_entry *e, const char *name, unsigned int size,
 	}
 	t->u.kernel.target = target;
 
+	ret = xt_check_target(target, AF_INET, t->u.target_size - sizeof(*t),
+			      name, e->comefrom, e->ip.proto,
+			      e->ip.invflags & IPT_INV_PROTO);
+	if (ret)
+		goto err;
+
 	if (t->u.kernel.target == &ipt_standard_target) {
 		if (!standard_check(t, size)) {
 			ret = -EINVAL;
 			goto cleanup_matches;
 		}
 	} else if (t->u.kernel.target->checkentry
-		   && !t->u.kernel.target->checkentry(name, e, t->data,
+		   && !t->u.kernel.target->checkentry(name, e, target, t->data,
 						      t->u.target_size
 						      - sizeof(*t),
 						      e->comefrom)) {
-		module_put(t->u.kernel.target->me);
 		duprintf("ip_tables: check failed for `%s'.\n",
 			 t->u.kernel.target->name);
 		ret = -EINVAL;
-		goto cleanup_matches;
+		goto err;
 	}
 
 	(*i)++;
 	return 0;
-
+ err:
+	module_put(t->u.kernel.target->me);
  cleanup_matches:
 	IPT_MATCH_ITERATE(e, cleanup_match, &j);
 	return ret;
@@ -645,7 +654,7 @@ cleanup_entry(struct ipt_entry *e, unsigned int *i)
 	IPT_MATCH_ITERATE(e, cleanup_match, NULL);
 	t = ipt_get_target(e);
 	if (t->u.kernel.target->destroy)
-		t->u.kernel.target->destroy(t->data,
+		t->u.kernel.target->destroy(t->u.kernel.target, t->data,
 					    t->u.target_size - sizeof(*t));
 	module_put(t->u.kernel.target->me);
 	return 0;
@@ -1277,6 +1286,7 @@ static int
 icmp_match(const struct sk_buff *skb,
 	   const struct net_device *in,
 	   const struct net_device *out,
+	   const struct xt_match *match,
 	   const void *matchinfo,
 	   int offset,
 	   unsigned int protoff,
@@ -1310,28 +1320,29 @@ icmp_match(const struct sk_buff *skb,
 static int
 icmp_checkentry(const char *tablename,
 	   const void *info,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
 {
-	const struct ipt_ip *ip = info;
 	const struct ipt_icmp *icmpinfo = matchinfo;
 
-	/* Must specify proto == ICMP, and no unknown invflags */
-	return ip->proto == IPPROTO_ICMP
-		&& !(ip->invflags & IPT_INV_PROTO)
-		&& matchsize == IPT_ALIGN(sizeof(struct ipt_icmp))
-		&& !(icmpinfo->invflags & ~IPT_ICMP_INV);
+	/* Must specify no unknown invflags */
+	return !(icmpinfo->invflags & ~IPT_ICMP_INV);
 }
 
 /* The built-in targets: standard (NULL) and error. */
 static struct ipt_target ipt_standard_target = {
 	.name		= IPT_STANDARD_TARGET,
+	.targetsize	= sizeof(int),
+	.family		= AF_INET,
 };
 
 static struct ipt_target ipt_error_target = {
 	.name		= IPT_ERROR_TARGET,
 	.target		= ipt_error,
+	.targetsize	= IPT_FUNCTION_MAXNAMELEN,
+	.family		= AF_INET,
 };
 
 static struct nf_sockopt_ops ipt_sockopts = {
@@ -1346,8 +1357,11 @@ static struct nf_sockopt_ops ipt_sockopts = {
 
 static struct ipt_match icmp_matchstruct = {
 	.name		= "icmp",
-	.match		= &icmp_match,
-	.checkentry	= &icmp_checkentry,
+	.match		= icmp_match,
+	.matchsize	= sizeof(struct ipt_icmp),
+	.proto		= IPPROTO_ICMP,
+	.family		= AF_INET,
+	.checkentry	= icmp_checkentry,
 };
 
 static int __init init(void)
@@ -1357,9 +1371,9 @@ static int __init init(void)
 	xt_proto_init(AF_INET);
 
 	/* Noone else will be downing sem now, so we won't sleep */
-	xt_register_target(AF_INET, &ipt_standard_target);
-	xt_register_target(AF_INET, &ipt_error_target);
-	xt_register_match(AF_INET, &icmp_matchstruct);
+	xt_register_target(&ipt_standard_target);
+	xt_register_target(&ipt_error_target);
+	xt_register_match(&icmp_matchstruct);
 
 	/* Register setsockopt */
 	ret = nf_register_sockopt(&ipt_sockopts);
@@ -1376,9 +1390,9 @@ static void __exit fini(void)
 {
 	nf_unregister_sockopt(&ipt_sockopts);
 
-	xt_unregister_match(AF_INET, &icmp_matchstruct);
-	xt_unregister_target(AF_INET, &ipt_error_target);
-	xt_unregister_target(AF_INET, &ipt_standard_target);
+	xt_unregister_match(&icmp_matchstruct);
+	xt_unregister_target(&ipt_error_target);
+	xt_unregister_target(&ipt_standard_target);
 
 	xt_proto_fini(AF_INET);
 }
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index d9bc971..61e11ed 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -311,6 +311,7 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
+       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -380,6 +381,7 @@ target(struct sk_buff **pskb,
 static int
 checkentry(const char *tablename,
 	   const void *e_void,
+	   const struct xt_target *target,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
@@ -389,13 +391,6 @@ checkentry(const char *tablename,
 
 	struct clusterip_config *config;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_clusterip_tgt_info))) {
-		printk(KERN_WARNING "CLUSTERIP: targinfosize %u != %Zu\n",
-		       targinfosize,
-		       IPT_ALIGN(sizeof(struct ipt_clusterip_tgt_info)));
-		return 0;
-	}
-
 	if (cipinfo->hash_mode != CLUSTERIP_HASHMODE_SIP &&
 	    cipinfo->hash_mode != CLUSTERIP_HASHMODE_SIP_SPT &&
 	    cipinfo->hash_mode != CLUSTERIP_HASHMODE_SIP_SPT_DPT) {
@@ -465,9 +460,10 @@ checkentry(const char *tablename,
 }
 
 /* drop reference count of cluster config when rule is deleted */
-static void destroy(void *matchinfo, unsigned int matchinfosize)
+static void destroy(const struct xt_target *target, void *targinfo,
+		    unsigned int targinfosize)
 {
-	struct ipt_clusterip_tgt_info *cipinfo = matchinfo;
+	struct ipt_clusterip_tgt_info *cipinfo = targinfo;
 
 	/* if no more entries are referencing the config, remove it
 	 * from the list and destroy the proc entry */
@@ -476,12 +472,13 @@ static void destroy(void *matchinfo, unsigned int matchinfosize)
 	clusterip_config_put(cipinfo->config);
 }
 
-static struct ipt_target clusterip_tgt = { 
-	.name = "CLUSTERIP",
-	.target = &target, 
-	.checkentry = &checkentry, 
-	.destroy = &destroy,
-	.me = THIS_MODULE
+static struct ipt_target clusterip_tgt = {
+	.name		= "CLUSTERIP",
+	.target		= target,
+	.targetsize	= sizeof(struct ipt_clusterip_tgt_info),
+	.checkentry	= checkentry,
+	.destroy	= destroy,
+	.me		= THIS_MODULE
 };
 
 
diff --git a/net/ipv4/netfilter/ipt_DSCP.c b/net/ipv4/netfilter/ipt_DSCP.c
index 898cdf7..cfb0b90 100644
--- a/net/ipv4/netfilter/ipt_DSCP.c
+++ b/net/ipv4/netfilter/ipt_DSCP.c
@@ -29,6 +29,7 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
+       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -58,35 +59,25 @@ target(struct sk_buff **pskb,
 static int
 checkentry(const char *tablename,
 	   const void *e_void,
+	   const struct xt_target *target,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
 	const u_int8_t dscp = ((struct ipt_DSCP_info *)targinfo)->dscp;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_DSCP_info))) {
-		printk(KERN_WARNING "DSCP: targinfosize %u != %Zu\n",
-		       targinfosize,
-		       IPT_ALIGN(sizeof(struct ipt_DSCP_info)));
-		return 0;
-	}
-
-	if (strcmp(tablename, "mangle") != 0) {
-		printk(KERN_WARNING "DSCP: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
-		return 0;
-	}
-
 	if ((dscp > IPT_DSCP_MAX)) {
 		printk(KERN_WARNING "DSCP: dscp %x out of range\n", dscp);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_target ipt_dscp_reg = {
 	.name		= "DSCP",
 	.target		= target,
+	.targetsize	= sizeof(struct ipt_DSCP_info),
+	.table		= "mangle",
 	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c
index 7064454..b9b80f9 100644
--- a/net/ipv4/netfilter/ipt_ECN.c
+++ b/net/ipv4/netfilter/ipt_ECN.c
@@ -94,6 +94,7 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
+       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -114,6 +115,7 @@ target(struct sk_buff **pskb,
 static int
 checkentry(const char *tablename,
 	   const void *e_void,
+	   const struct xt_target *target,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
@@ -121,18 +123,6 @@ checkentry(const char *tablename,
 	const struct ipt_ECN_info *einfo = (struct ipt_ECN_info *)targinfo;
 	const struct ipt_entry *e = e_void;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_ECN_info))) {
-		printk(KERN_WARNING "ECN: targinfosize %u != %Zu\n",
-		       targinfosize,
-		       IPT_ALIGN(sizeof(struct ipt_ECN_info)));
-		return 0;
-	}
-
-	if (strcmp(tablename, "mangle") != 0) {
-		printk(KERN_WARNING "ECN: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
-		return 0;
-	}
-
 	if (einfo->operation & IPT_ECN_OP_MASK) {
 		printk(KERN_WARNING "ECN: unsupported ECN operation %x\n",
 			einfo->operation);
@@ -143,20 +133,20 @@ checkentry(const char *tablename,
 			einfo->ip_ect);
 		return 0;
 	}
-
 	if ((einfo->operation & (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR))
 	    && (e->ip.proto != IPPROTO_TCP || (e->ip.invflags & IPT_INV_PROTO))) {
 		printk(KERN_WARNING "ECN: cannot use TCP operations on a "
 		       "non-tcp rule\n");
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_target ipt_ecn_reg = {
 	.name		= "ECN",
 	.target		= target,
+	.targetsize	= sizeof(struct ipt_ECN_info),
+	.table		= "mangle",
 	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index 6606ddb..750d322 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/net/ipv4/netfilter/ipt_LOG.c
@@ -415,6 +415,7 @@ ipt_log_target(struct sk_buff **pskb,
 	       const struct net_device *in,
 	       const struct net_device *out,
 	       unsigned int hooknum,
+	       const struct xt_target *target,
 	       const void *targinfo,
 	       void *userinfo)
 {
@@ -425,42 +426,41 @@ ipt_log_target(struct sk_buff **pskb,
 	li.u.log.level = loginfo->level;
 	li.u.log.logflags = loginfo->logflags;
 
-	nf_log_packet(PF_INET, hooknum, *pskb, in, out, &li, loginfo->prefix);
+	if (loginfo->logflags & IPT_LOG_NFLOG)
+		nf_log_packet(PF_INET, hooknum, *pskb, in, out, &li,
+		              loginfo->prefix);
+	else
+		ipt_log_packet(PF_INET, hooknum, *pskb, in, out, &li,
+		               loginfo->prefix);
 
 	return IPT_CONTINUE;
 }
 
 static int ipt_log_checkentry(const char *tablename,
 			      const void *e,
+			      const struct xt_target *target,
 			      void *targinfo,
 			      unsigned int targinfosize,
 			      unsigned int hook_mask)
 {
 	const struct ipt_log_info *loginfo = targinfo;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_log_info))) {
-		DEBUGP("LOG: targinfosize %u != %u\n",
-		       targinfosize, IPT_ALIGN(sizeof(struct ipt_log_info)));
-		return 0;
-	}
-
 	if (loginfo->level >= 8) {
 		DEBUGP("LOG: level %u >= 8\n", loginfo->level);
 		return 0;
 	}
-
 	if (loginfo->prefix[sizeof(loginfo->prefix)-1] != '\0') {
 		DEBUGP("LOG: prefix term %i\n",
 		       loginfo->prefix[sizeof(loginfo->prefix)-1]);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_target ipt_log_reg = {
 	.name		= "LOG",
 	.target		= ipt_log_target,
+	.targetsize	= sizeof(struct ipt_log_info),
 	.checkentry	= ipt_log_checkentry,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 12c56d3..e0c321c 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -41,25 +41,13 @@ static DEFINE_RWLOCK(masq_lock);
 static int
 masquerade_check(const char *tablename,
 		 const void *e,
+		 const struct xt_target *target,
 		 void *targinfo,
 		 unsigned int targinfosize,
 		 unsigned int hook_mask)
 {
 	const struct ip_nat_multi_range_compat *mr = targinfo;
 
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP("masquerade_check: bad table `%s'.\n", tablename);
-		return 0;
-	}
-	if (targinfosize != IPT_ALIGN(sizeof(*mr))) {
-		DEBUGP("masquerade_check: size %u != %u.\n",
-		       targinfosize, sizeof(*mr));
-		return 0;
-	}
-	if (hook_mask & ~(1 << NF_IP_POST_ROUTING)) {
-		DEBUGP("masquerade_check: bad hooks %x.\n", hook_mask);
-		return 0;
-	}
 	if (mr->range[0].flags & IP_NAT_RANGE_MAP_IPS) {
 		DEBUGP("masquerade_check: bad MAP_IPS.\n");
 		return 0;
@@ -76,6 +64,7 @@ masquerade_target(struct sk_buff **pskb,
 		  const struct net_device *in,
 		  const struct net_device *out,
 		  unsigned int hooknum,
+		  const struct xt_target *target,
 		  const void *targinfo,
 		  void *userinfo)
 {
@@ -179,6 +168,9 @@ static struct notifier_block masq_inet_notifier = {
 static struct ipt_target masquerade = {
 	.name		= "MASQUERADE",
 	.target		= masquerade_target,
+	.targetsize	= sizeof(struct ip_nat_multi_range_compat),
+	.table		= "nat",
+	.hooks		= 1 << NF_IP_POST_ROUTING,
 	.checkentry	= masquerade_check,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_NETMAP.c b/net/ipv4/netfilter/ipt_NETMAP.c
index b074467..fba181c 100644
--- a/net/ipv4/netfilter/ipt_NETMAP.c
+++ b/net/ipv4/netfilter/ipt_NETMAP.c
@@ -32,25 +32,13 @@ MODULE_DESCRIPTION("iptables 1:1 NAT mapping of IP networks target");
 static int
 check(const char *tablename,
       const void *e,
+      const struct xt_target *target,
       void *targinfo,
       unsigned int targinfosize,
       unsigned int hook_mask)
 {
 	const struct ip_nat_multi_range_compat *mr = targinfo;
 
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP(MODULENAME":check: bad table `%s'.\n", tablename);
-		return 0;
-	}
-	if (targinfosize != IPT_ALIGN(sizeof(*mr))) {
-		DEBUGP(MODULENAME":check: size %u.\n", targinfosize);
-		return 0;
-	}
-	if (hook_mask & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_POST_ROUTING) |
-	                  (1 << NF_IP_LOCAL_OUT))) {
-		DEBUGP(MODULENAME":check: bad hooks %x.\n", hook_mask);
-		return 0;
-	}
 	if (!(mr->range[0].flags & IP_NAT_RANGE_MAP_IPS)) {
 		DEBUGP(MODULENAME":check: bad MAP_IPS.\n");
 		return 0;
@@ -67,6 +55,7 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
+       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -101,6 +90,10 @@ target(struct sk_buff **pskb,
 static struct ipt_target target_module = { 
 	.name 		= MODULENAME,
 	.target 	= target, 
+	.targetsize	= sizeof(struct ip_nat_multi_range_compat),
+	.table		= "nat",
+	.hooks		= (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_POST_ROUTING) |
+			  (1 << NF_IP_LOCAL_OUT),
 	.checkentry 	= check,
     	.me 		= THIS_MODULE 
 };
diff --git a/net/ipv4/netfilter/ipt_REDIRECT.c b/net/ipv4/netfilter/ipt_REDIRECT.c
index 140be51..be3da7c 100644
--- a/net/ipv4/netfilter/ipt_REDIRECT.c
+++ b/net/ipv4/netfilter/ipt_REDIRECT.c
@@ -34,24 +34,13 @@ MODULE_DESCRIPTION("iptables REDIRECT target module");
 static int
 redirect_check(const char *tablename,
 	       const void *e,
+	       const struct xt_target *target,
 	       void *targinfo,
 	       unsigned int targinfosize,
 	       unsigned int hook_mask)
 {
 	const struct ip_nat_multi_range_compat *mr = targinfo;
 
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP("redirect_check: bad table `%s'.\n", table);
-		return 0;
-	}
-	if (targinfosize != IPT_ALIGN(sizeof(*mr))) {
-		DEBUGP("redirect_check: size %u.\n", targinfosize);
-		return 0;
-	}
-	if (hook_mask & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT))) {
-		DEBUGP("redirect_check: bad hooks %x.\n", hook_mask);
-		return 0;
-	}
 	if (mr->range[0].flags & IP_NAT_RANGE_MAP_IPS) {
 		DEBUGP("redirect_check: bad MAP_IPS.\n");
 		return 0;
@@ -68,6 +57,7 @@ redirect_target(struct sk_buff **pskb,
 		const struct net_device *in,
 		const struct net_device *out,
 		unsigned int hooknum,
+		const struct xt_target *target,
 		const void *targinfo,
 		void *userinfo)
 {
@@ -115,6 +105,9 @@ redirect_target(struct sk_buff **pskb,
 static struct ipt_target redirect_reg = {
 	.name		= "REDIRECT",
 	.target		= redirect_target,
+	.targetsize	= sizeof(struct ip_nat_multi_range_compat),
+	.table		= "nat",
+	.hooks		= (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT),
 	.checkentry	= redirect_check,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 3eb47aa..9d3b357 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -154,10 +154,6 @@ static void send_reset(struct sk_buff *oldskb, int hook)
 	/* This packet will not be the same as the other: clear nf fields */
 	nf_reset(nskb);
 	nskb->nfmark = 0;
-#ifdef CONFIG_BRIDGE_NETFILTER
-	nf_bridge_put(nskb->nf_bridge);
-	nskb->nf_bridge = NULL;
-#endif
 
 	tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl);
 
@@ -236,6 +232,7 @@ static unsigned int reject(struct sk_buff **pskb,
 			   const struct net_device *in,
 			   const struct net_device *out,
 			   unsigned int hooknum,
+			   const struct xt_target *target,
 			   const void *targinfo,
 			   void *userinfo)
 {
@@ -283,6 +280,7 @@ static unsigned int reject(struct sk_buff **pskb,
 
 static int check(const char *tablename,
 		 const void *e_void,
+		 const struct xt_target *target,
 		 void *targinfo,
 		 unsigned int targinfosize,
 		 unsigned int hook_mask)
@@ -290,23 +288,6 @@ static int check(const char *tablename,
  	const struct ipt_reject_info *rejinfo = targinfo;
 	const struct ipt_entry *e = e_void;
 
- 	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_reject_info))) {
-  		DEBUGP("REJECT: targinfosize %u != 0\n", targinfosize);
-  		return 0;
-  	}
-
-	/* Only allow these for packet filtering. */
-	if (strcmp(tablename, "filter") != 0) {
-		DEBUGP("REJECT: bad table `%s'.\n", tablename);
-		return 0;
-	}
-	if ((hook_mask & ~((1 << NF_IP_LOCAL_IN)
-			   | (1 << NF_IP_FORWARD)
-			   | (1 << NF_IP_LOCAL_OUT))) != 0) {
-		DEBUGP("REJECT: bad hook mask %X\n", hook_mask);
-		return 0;
-	}
-
 	if (rejinfo->with == IPT_ICMP_ECHOREPLY) {
 		printk("REJECT: ECHOREPLY no longer supported.\n");
 		return 0;
@@ -318,13 +299,16 @@ static int check(const char *tablename,
 			return 0;
 		}
 	}
-
 	return 1;
 }
 
 static struct ipt_target ipt_reject_reg = {
 	.name		= "REJECT",
 	.target		= reject,
+	.targetsize	= sizeof(struct ipt_reject_info),
+	.table		= "filter",
+	.hooks		= (1 << NF_IP_LOCAL_IN) | (1 << NF_IP_FORWARD) |
+			  (1 << NF_IP_LOCAL_OUT),
 	.checkentry	= check,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_SAME.c b/net/ipv4/netfilter/ipt_SAME.c
index a22de59..7e2ebc9 100644
--- a/net/ipv4/netfilter/ipt_SAME.c
+++ b/net/ipv4/netfilter/ipt_SAME.c
@@ -50,6 +50,7 @@ MODULE_DESCRIPTION("iptables special SNAT module for consistent sourceip");
 static int
 same_check(const char *tablename,
 	      const void *e,
+	      const struct xt_target *target,
 	      void *targinfo,
 	      unsigned int targinfosize,
 	      unsigned int hook_mask)
@@ -59,18 +60,6 @@ same_check(const char *tablename,
 
 	mr->ipnum = 0;
 
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP("same_check: bad table `%s'.\n", tablename);
-		return 0;
-	}
-	if (targinfosize != IPT_ALIGN(sizeof(*mr))) {
-		DEBUGP("same_check: size %u.\n", targinfosize);
-		return 0;
-	}
-	if (hook_mask & ~(1 << NF_IP_PRE_ROUTING | 1 << NF_IP_POST_ROUTING)) {
-		DEBUGP("same_check: bad hooks %x.\n", hook_mask);
-		return 0;
-	}
 	if (mr->rangesize < 1) {
 		DEBUGP("same_check: need at least one dest range.\n");
 		return 0;
@@ -127,7 +116,7 @@ same_check(const char *tablename,
 }
 
 static void 
-same_destroy(void *targinfo,
+same_destroy(const struct xt_target *target, void *targinfo,
 		unsigned int targinfosize)
 {
 	struct ipt_same_info *mr = targinfo;
@@ -143,6 +132,7 @@ same_target(struct sk_buff **pskb,
 		const struct net_device *in,
 		const struct net_device *out,
 		unsigned int hooknum,
+		const struct xt_target *target,
 		const void *targinfo,
 		void *userinfo)
 {
@@ -191,6 +181,9 @@ same_target(struct sk_buff **pskb,
 static struct ipt_target same_reg = { 
 	.name		= "SAME",
 	.target		= same_target,
+	.targetsize	= sizeof(struct ipt_same_info),
+	.table		= "nat",
+	.hooks		= (1 << NF_IP_PRE_ROUTING | 1 << NF_IP_POST_ROUTING),
 	.checkentry	= same_check,
 	.destroy	= same_destroy,
 	.me		= THIS_MODULE,
diff --git a/net/ipv4/netfilter/ipt_TCPMSS.c b/net/ipv4/netfilter/ipt_TCPMSS.c
index c122841..c4fc50e 100644
--- a/net/ipv4/netfilter/ipt_TCPMSS.c
+++ b/net/ipv4/netfilter/ipt_TCPMSS.c
@@ -48,6 +48,7 @@ ipt_tcpmss_target(struct sk_buff **pskb,
 		  const struct net_device *in,
 		  const struct net_device *out,
 		  unsigned int hooknum,
+		  const struct xt_target *target,
 		  const void *targinfo,
 		  void *userinfo)
 {
@@ -211,6 +212,7 @@ static inline int find_syn_match(const struct ipt_entry_match *m)
 static int
 ipt_tcpmss_checkentry(const char *tablename,
 		      const void *e_void,
+		      const struct xt_target *target,
 		      void *targinfo,
 		      unsigned int targinfosize,
 		      unsigned int hook_mask)
@@ -218,13 +220,6 @@ ipt_tcpmss_checkentry(const char *tablename,
 	const struct ipt_tcpmss_info *tcpmssinfo = targinfo;
 	const struct ipt_entry *e = e_void;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_tcpmss_info))) {
-		DEBUGP("ipt_tcpmss_checkentry: targinfosize %u != %u\n",
-		       targinfosize, IPT_ALIGN(sizeof(struct ipt_tcpmss_info)));
-		return 0;
-	}
-
-
 	if((tcpmssinfo->mss == IPT_TCPMSS_CLAMP_PMTU) && 
 			((hook_mask & ~((1 << NF_IP_FORWARD)
 			   	| (1 << NF_IP_LOCAL_OUT)
@@ -233,11 +228,8 @@ ipt_tcpmss_checkentry(const char *tablename,
 		return 0;
 	}
 
-	if (e->ip.proto == IPPROTO_TCP
-	    && !(e->ip.invflags & IPT_INV_PROTO)
-	    && IPT_MATCH_ITERATE(e, find_syn_match))
+	if (IPT_MATCH_ITERATE(e, find_syn_match))
 		return 1;
-
 	printk("TCPMSS: Only works on TCP SYN packets\n");
 	return 0;
 }
@@ -245,6 +237,8 @@ ipt_tcpmss_checkentry(const char *tablename,
 static struct ipt_target ipt_tcpmss_reg = {
 	.name		= "TCPMSS",
 	.target		= ipt_tcpmss_target,
+	.targetsize	= sizeof(struct ipt_tcpmss_info),
+	.proto		= IPPROTO_TCP,
 	.checkentry	= ipt_tcpmss_checkentry,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_TOS.c b/net/ipv4/netfilter/ipt_TOS.c
index 3a44a56..9aa7817 100644
--- a/net/ipv4/netfilter/ipt_TOS.c
+++ b/net/ipv4/netfilter/ipt_TOS.c
@@ -25,6 +25,7 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
+       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -53,24 +54,13 @@ target(struct sk_buff **pskb,
 static int
 checkentry(const char *tablename,
 	   const void *e_void,
+	   const struct xt_target *target,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
 	const u_int8_t tos = ((struct ipt_tos_target_info *)targinfo)->tos;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_tos_target_info))) {
-		printk(KERN_WARNING "TOS: targinfosize %u != %Zu\n",
-		       targinfosize,
-		       IPT_ALIGN(sizeof(struct ipt_tos_target_info)));
-		return 0;
-	}
-
-	if (strcmp(tablename, "mangle") != 0) {
-		printk(KERN_WARNING "TOS: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
-		return 0;
-	}
-
 	if (tos != IPTOS_LOWDELAY
 	    && tos != IPTOS_THROUGHPUT
 	    && tos != IPTOS_RELIABILITY
@@ -79,13 +69,14 @@ checkentry(const char *tablename,
 		printk(KERN_WARNING "TOS: bad tos value %#x\n", tos);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_target ipt_tos_reg = {
 	.name		= "TOS",
 	.target		= target,
+	.targetsize	= sizeof(struct ipt_tos_target_info),
+	.table		= "mangle",
 	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_TTL.c b/net/ipv4/netfilter/ipt_TTL.c
index b769eb2..5009a00 100644
--- a/net/ipv4/netfilter/ipt_TTL.c
+++ b/net/ipv4/netfilter/ipt_TTL.c
@@ -20,9 +20,10 @@ MODULE_DESCRIPTION("IP tables TTL modification module");
 MODULE_LICENSE("GPL");
 
 static unsigned int 
-ipt_ttl_target(struct sk_buff **pskb, const struct net_device *in, 
-		const struct net_device *out, unsigned int hooknum, 
-		const void *targinfo, void *userinfo)
+ipt_ttl_target(struct sk_buff **pskb,
+	       const struct net_device *in, const struct net_device *out,
+	       unsigned int hooknum, const struct xt_target *target,
+	       const void *targinfo, void *userinfo)
 {
 	struct iphdr *iph;
 	const struct ipt_TTL_info *info = targinfo;
@@ -67,40 +68,28 @@ ipt_ttl_target(struct sk_buff **pskb, const struct net_device *in,
 
 static int ipt_ttl_checkentry(const char *tablename,
 		const void *e,
+		const struct xt_target *target,
 		void *targinfo,
 		unsigned int targinfosize,
 		unsigned int hook_mask)
 {
 	struct ipt_TTL_info *info = targinfo;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_TTL_info))) {
-		printk(KERN_WARNING "ipt_TTL: targinfosize %u != %Zu\n",
-				targinfosize,
-				IPT_ALIGN(sizeof(struct ipt_TTL_info)));
-		return 0;
-	}
-
-	if (strcmp(tablename, "mangle")) {
-		printk(KERN_WARNING "ipt_TTL: can only be called from "
-			"\"mangle\" table, not \"%s\"\n", tablename);
-		return 0;
-	}
-
 	if (info->mode > IPT_TTL_MAXMODE) {
 		printk(KERN_WARNING "ipt_TTL: invalid or unknown Mode %u\n", 
 			info->mode);
 		return 0;
 	}
-
 	if ((info->mode != IPT_TTL_SET) && (info->ttl == 0))
 		return 0;
-
 	return 1;
 }
 
 static struct ipt_target ipt_TTL = { 
 	.name 		= "TTL",
 	.target 	= ipt_ttl_target, 
+	.targetsize	= sizeof(struct ipt_TTL_info),
+	.table		= "mangle",
 	.checkentry 	= ipt_ttl_checkentry, 
 	.me 		= THIS_MODULE,
 };
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 180a9ea..a82a32e 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -303,6 +303,7 @@ static unsigned int ipt_ulog_target(struct sk_buff **pskb,
 				    const struct net_device *in,
 				    const struct net_device *out,
 				    unsigned int hooknum,
+				    const struct xt_target *target,
 				    const void *targinfo, void *userinfo)
 {
 	struct ipt_ulog_info *loginfo = (struct ipt_ulog_info *) targinfo;
@@ -339,42 +340,37 @@ static void ipt_logfn(unsigned int pf,
 
 static int ipt_ulog_checkentry(const char *tablename,
 			       const void *e,
+			       const struct xt_target *target,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hookmask)
 {
 	struct ipt_ulog_info *loginfo = (struct ipt_ulog_info *) targinfo;
 
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_ulog_info))) {
-		DEBUGP("ipt_ULOG: targinfosize %u != 0\n", targinfosize);
-		return 0;
-	}
-
 	if (loginfo->prefix[sizeof(loginfo->prefix) - 1] != '\0') {
 		DEBUGP("ipt_ULOG: prefix term %i\n",
 		       loginfo->prefix[sizeof(loginfo->prefix) - 1]);
 		return 0;
 	}
-
 	if (loginfo->qthreshold > ULOG_MAX_QLEN) {
 		DEBUGP("ipt_ULOG: queue threshold %i > MAX_QLEN\n",
 			loginfo->qthreshold);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_target ipt_ulog_reg = {
 	.name		= "ULOG",
 	.target		= ipt_ulog_target,
+	.targetsize	= sizeof(struct ipt_ulog_info),
 	.checkentry	= ipt_ulog_checkentry,
 	.me		= THIS_MODULE,
 };
 
 static struct nf_logger ipt_ulog_logger = {
 	.name		= "ipt_ULOG",
-	.logfn		= &ipt_logfn,
+	.logfn		= ipt_logfn,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_addrtype.c b/net/ipv4/netfilter/ipt_addrtype.c
index d6b83a9..5fdf85d 100644
--- a/net/ipv4/netfilter/ipt_addrtype.c
+++ b/net/ipv4/netfilter/ipt_addrtype.c
@@ -27,8 +27,9 @@ static inline int match_type(u_int32_t addr, u_int16_t mask)
 	return !!(mask & (1 << inet_addr_type(addr)));
 }
 
-static int match(const struct sk_buff *skb, const struct net_device *in,
-		 const struct net_device *out, const void *matchinfo,
+static int match(const struct sk_buff *skb,
+		 const struct net_device *in, const struct net_device *out,
+		 const struct xt_match *match, const void *matchinfo,
 		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_addrtype_info *info = matchinfo;
@@ -43,23 +44,10 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return ret;
 }
 
-static int checkentry(const char *tablename, const void *ip,
-		      void *matchinfo, unsigned int matchsize,
-		      unsigned int hook_mask)
-{
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_addrtype_info))) {
-		printk(KERN_ERR "ipt_addrtype: invalid size (%u != %Zu)\n",
-		       matchsize, IPT_ALIGN(sizeof(struct ipt_addrtype_info)));
-		return 0;
-	}
-
-	return 1;
-}
-
 static struct ipt_match addrtype_match = {
 	.name		= "addrtype",
 	.match		= match,
-	.checkentry	= checkentry,
+	.matchsize	= sizeof(struct ipt_addrtype_info),
 	.me		= THIS_MODULE
 };
 
diff --git a/net/ipv4/netfilter/ipt_ah.c b/net/ipv4/netfilter/ipt_ah.c
index 144adfe..35a21fb 100644
--- a/net/ipv4/netfilter/ipt_ah.c
+++ b/net/ipv4/netfilter/ipt_ah.c
@@ -39,6 +39,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -71,37 +72,27 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *ip_void,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ipt_ah *ahinfo = matchinfo;
-	const struct ipt_ip *ip = ip_void;
 
-	/* Must specify proto == AH, and no unknown invflags */
-	if (ip->proto != IPPROTO_AH || (ip->invflags & IPT_INV_PROTO)) {
-		duprintf("ipt_ah: Protocol %u != %u\n", ip->proto,
-			 IPPROTO_AH);
-		return 0;
-	}
-	if (matchinfosize != IPT_ALIGN(sizeof(struct ipt_ah))) {
-		duprintf("ipt_ah: matchsize %u != %u\n",
-			 matchinfosize, IPT_ALIGN(sizeof(struct ipt_ah)));
-		return 0;
-	}
+	/* Must specify no unknown invflags */
 	if (ahinfo->invflags & ~IPT_AH_INV_MASK) {
-		duprintf("ipt_ah: unknown flags %X\n",
-			 ahinfo->invflags);
+		duprintf("ipt_ah: unknown flags %X\n", ahinfo->invflags);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_match ah_match = {
 	.name		= "ah",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_ah),
+	.proto		= IPPROTO_AH,
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_dscp.c b/net/ipv4/netfilter/ipt_dscp.c
index 92063b4..11963c3 100644
--- a/net/ipv4/netfilter/ipt_dscp.c
+++ b/net/ipv4/netfilter/ipt_dscp.c
@@ -19,8 +19,9 @@ MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
 MODULE_DESCRIPTION("iptables DSCP matching module");
 MODULE_LICENSE("GPL");
 
-static int match(const struct sk_buff *skb, const struct net_device *in,
-		 const struct net_device *out, const void *matchinfo,
+static int match(const struct sk_buff *skb,
+		 const struct net_device *in, const struct net_device *out,
+		 const struct xt_match *match, const void *matchinfo,
 		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_dscp_info *info = matchinfo;
@@ -31,20 +32,10 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return ((iph->tos&IPT_DSCP_MASK) == sh_dscp) ^ info->invert;
 }
 
-static int checkentry(const char *tablename, const void *ip,
-		      void *matchinfo, unsigned int matchsize,
-		      unsigned int hook_mask)
-{
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_dscp_info)))
-		return 0;
-
-	return 1;
-}
-
 static struct ipt_match dscp_match = {
 	.name		= "dscp",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_dscp_info),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index e68b0c7..d7e29f6 100644
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/net/ipv4/netfilter/ipt_ecn.c
@@ -65,8 +65,9 @@ static inline int match_tcp(const struct sk_buff *skb,
 	return 1;
 }
 
-static int match(const struct sk_buff *skb, const struct net_device *in,
-		 const struct net_device *out, const void *matchinfo,
+static int match(const struct sk_buff *skb,
+		 const struct net_device *in, const struct net_device *out,
+		 const struct xt_match *match, const void *matchinfo,
 		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_ecn_info *info = matchinfo;
@@ -86,15 +87,13 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 }
 
 static int checkentry(const char *tablename, const void *ip_void,
+		      const struct xt_match *match,
 		      void *matchinfo, unsigned int matchsize,
 		      unsigned int hook_mask)
 {
 	const struct ipt_ecn_info *info = matchinfo;
 	const struct ipt_ip *ip = ip_void;
 
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_ecn_info)))
-		return 0;
-
 	if (info->operation & IPT_ECN_OP_MATCH_MASK)
 		return 0;
 
@@ -113,8 +112,9 @@ static int checkentry(const char *tablename, const void *ip_void,
 
 static struct ipt_match ecn_match = {
 	.name		= "ecn",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_ecn_info),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_esp.c b/net/ipv4/netfilter/ipt_esp.c
index 9de191a..af0d5ec 100644
--- a/net/ipv4/netfilter/ipt_esp.c
+++ b/net/ipv4/netfilter/ipt_esp.c
@@ -40,6 +40,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -72,37 +73,27 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *ip_void,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ipt_esp *espinfo = matchinfo;
-	const struct ipt_ip *ip = ip_void;
 
-	/* Must specify proto == ESP, and no unknown invflags */
-	if (ip->proto != IPPROTO_ESP || (ip->invflags & IPT_INV_PROTO)) {
-		duprintf("ipt_esp: Protocol %u != %u\n", ip->proto,
-			 IPPROTO_ESP);
-		return 0;
-	}
-	if (matchinfosize != IPT_ALIGN(sizeof(struct ipt_esp))) {
-		duprintf("ipt_esp: matchsize %u != %u\n",
-			 matchinfosize, IPT_ALIGN(sizeof(struct ipt_esp)));
-		return 0;
-	}
+	/* Must specify no unknown invflags */
 	if (espinfo->invflags & ~IPT_ESP_INV_MASK) {
-		duprintf("ipt_esp: unknown flags %X\n",
-			 espinfo->invflags);
+		duprintf("ipt_esp: unknown flags %X\n", espinfo->invflags);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_match esp_match = {
 	.name		= "esp",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_esp),
+	.proto		= IPPROTO_ESP,
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c
index 4fe48c1..dc1521c 100644
--- a/net/ipv4/netfilter/ipt_hashlimit.c
+++ b/net/ipv4/netfilter/ipt_hashlimit.c
@@ -427,6 +427,7 @@ static int
 hashlimit_match(const struct sk_buff *skb,
 		const struct net_device *in,
 		const struct net_device *out,
+		const struct xt_match *match,
 		const void *matchinfo,
 		int offset,
 		unsigned int protoff,
@@ -506,15 +507,13 @@ hashlimit_match(const struct sk_buff *skb,
 static int
 hashlimit_checkentry(const char *tablename,
 		     const void *inf,
+		     const struct xt_match *match,
 		     void *matchinfo,
 		     unsigned int matchsize,
 		     unsigned int hook_mask)
 {
 	struct ipt_hashlimit_info *r = matchinfo;
 
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_hashlimit_info)))
-		return 0;
-
 	/* Check for overflow. */
 	if (r->cfg.burst == 0
 	    || user2credits(r->cfg.avg * r->cfg.burst) < 
@@ -558,19 +557,21 @@ hashlimit_checkentry(const char *tablename,
 }
 
 static void
-hashlimit_destroy(void *matchinfo, unsigned int matchsize)
+hashlimit_destroy(const struct xt_match *match, void *matchinfo,
+		  unsigned int matchsize)
 {
 	struct ipt_hashlimit_info *r = (struct ipt_hashlimit_info *) matchinfo;
 
 	htable_put(r->hinfo);
 }
 
-static struct ipt_match ipt_hashlimit = { 
-	.name = "hashlimit", 
-	.match = hashlimit_match, 
-	.checkentry = hashlimit_checkentry, 
-	.destroy = hashlimit_destroy,
-	.me = THIS_MODULE 
+static struct ipt_match ipt_hashlimit = {
+	.name		= "hashlimit",
+	.match		= hashlimit_match,
+	.matchsize	= sizeof(struct ipt_hashlimit_info),
+	.checkentry	= hashlimit_checkentry,
+	.destroy	= hashlimit_destroy,
+	.me		= THIS_MODULE
 };
 
 /* PROC stuff */
diff --git a/net/ipv4/netfilter/ipt_iprange.c b/net/ipv4/netfilter/ipt_iprange.c
index 13fb16f..ae70112 100644
--- a/net/ipv4/netfilter/ipt_iprange.c
+++ b/net/ipv4/netfilter/ipt_iprange.c
@@ -27,6 +27,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset, unsigned int protoff, int *hotdrop)
 {
@@ -62,27 +63,12 @@ match(const struct sk_buff *skb,
 	return 1;
 }
 
-static int check(const char *tablename,
-		 const void *inf,
-		 void *matchinfo,
-		 unsigned int matchsize,
-		 unsigned int hook_mask)
-{
-	/* verify size */
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_iprange_info)))
-		return 0;
-
-	return 1;
-}
-
-static struct ipt_match iprange_match = 
-{ 
-	.list = { NULL, NULL }, 
-	.name = "iprange", 
-	.match = &match, 
-	.checkentry = &check, 
-	.destroy = NULL, 
-	.me = THIS_MODULE
+static struct ipt_match iprange_match = {
+	.name		= "iprange",
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_iprange_info),
+	.destroy	= NULL,
+	.me		= THIS_MODULE
 };
 
 static int __init init(void)
diff --git a/net/ipv4/netfilter/ipt_multiport.c b/net/ipv4/netfilter/ipt_multiport.c
index 2d52326..bd07f7c 100644
--- a/net/ipv4/netfilter/ipt_multiport.c
+++ b/net/ipv4/netfilter/ipt_multiport.c
@@ -95,6 +95,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -127,6 +128,7 @@ static int
 match_v1(const struct sk_buff *skb,
 	 const struct net_device *in,
 	 const struct net_device *out,
+	 const struct xt_match *match,
 	 const void *matchinfo,
 	 int offset,
 	 unsigned int protoff,
@@ -153,40 +155,19 @@ match_v1(const struct sk_buff *skb,
 	return ports_match_v1(multiinfo, ntohs(pptr[0]), ntohs(pptr[1]));
 }
 
-/* Called when user tries to insert an entry of this type. */
-static int
-checkentry(const char *tablename,
-	   const void *ip,
-	   void *matchinfo,
-	   unsigned int matchsize,
-	   unsigned int hook_mask)
-{
-	return (matchsize == IPT_ALIGN(sizeof(struct ipt_multiport)));
-}
-
-static int
-checkentry_v1(const char *tablename,
-	      const void *ip,
-	      void *matchinfo,
-	      unsigned int matchsize,
-	      unsigned int hook_mask)
-{
-	return (matchsize == IPT_ALIGN(sizeof(struct ipt_multiport_v1)));
-}
-
 static struct ipt_match multiport_match = {
 	.name		= "multiport",
 	.revision	= 0,
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_multiport),
 	.me		= THIS_MODULE,
 };
 
 static struct ipt_match multiport_match_v1 = {
 	.name		= "multiport",
 	.revision	= 1,
-	.match		= &match_v1,
-	.checkentry	= &checkentry_v1,
+	.match		= match_v1,
+	.matchsize	= sizeof(struct ipt_multiport_v1),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_owner.c b/net/ipv4/netfilter/ipt_owner.c
index 4843d0c..3900428 100644
--- a/net/ipv4/netfilter/ipt_owner.c
+++ b/net/ipv4/netfilter/ipt_owner.c
@@ -25,6 +25,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -53,37 +54,27 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
            const void *ip,
+	   const struct xt_match *match,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
 	const struct ipt_owner_info *info = matchinfo;
 
-        if (hook_mask
-            & ~((1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_POST_ROUTING))) {
-                printk("ipt_owner: only valid for LOCAL_OUT or POST_ROUTING.\n");
-                return 0;
-        }
-
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_owner_info))) {
-		printk("Matchsize %u != %Zu\n", matchsize,
-		       IPT_ALIGN(sizeof(struct ipt_owner_info)));
-		return 0;
-	}
-
 	if (info->match & (IPT_OWNER_PID|IPT_OWNER_SID|IPT_OWNER_COMM)) {
 		printk("ipt_owner: pid, sid and command matching "
 		       "not supported anymore\n");
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ipt_match owner_match = {
 	.name		= "owner",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_owner_info),
+	.hooks		= (1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_POST_ROUTING),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_policy.c b/net/ipv4/netfilter/ipt_policy.c
deleted file mode 100644
index 5a7a265..0000000
--- a/net/ipv4/netfilter/ipt_policy.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/* IP tables module for matching IPsec policy
- *
- * Copyright (c) 2004,2005 Patrick McHardy, <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/init.h>
-#include <net/xfrm.h>
-
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_policy.h>
-
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_DESCRIPTION("IPtables IPsec policy matching module");
-MODULE_LICENSE("GPL");
-
-
-static inline int
-match_xfrm_state(struct xfrm_state *x, const struct ipt_policy_elem *e)
-{
-#define MATCH_ADDR(x,y,z)	(!e->match.x ||				     \
-		                 ((e->x.a4.s_addr == (e->y.a4.s_addr & (z))) \
-				  ^ e->invert.x))
-#define MATCH(x,y)		(!e->match.x || ((e->x == (y)) ^ e->invert.x))
-
-	return MATCH_ADDR(saddr, smask, x->props.saddr.a4) &&
-	       MATCH_ADDR(daddr, dmask, x->id.daddr.a4) &&
-	       MATCH(proto, x->id.proto) &&
-	       MATCH(mode, x->props.mode) &&
-	       MATCH(spi, x->id.spi) &&
-	       MATCH(reqid, x->props.reqid);
-}
-
-static int
-match_policy_in(const struct sk_buff *skb, const struct ipt_policy_info *info)
-{
-	const struct ipt_policy_elem *e;
-	struct sec_path *sp = skb->sp;
-	int strict = info->flags & IPT_POLICY_MATCH_STRICT;
-	int i, pos;
-
-	if (sp == NULL)
-		return -1;
-	if (strict && info->len != sp->len)
-		return 0;
-
-	for (i = sp->len - 1; i >= 0; i--) {
-		pos = strict ? i - sp->len + 1 : 0;
-		if (pos >= info->len)
-			return 0;
-		e = &info->pol[pos];
-
-		if (match_xfrm_state(sp->x[i].xvec, e)) {
-			if (!strict)
-				return 1;
-		} else if (strict)
-			return 0;
-	}
-
-	return strict ? 1 : 0;
-}
-
-static int
-match_policy_out(const struct sk_buff *skb, const struct ipt_policy_info *info)
-{
-	const struct ipt_policy_elem *e;
-	struct dst_entry *dst = skb->dst;
-	int strict = info->flags & IPT_POLICY_MATCH_STRICT;
-	int i, pos;
-
-	if (dst->xfrm == NULL)
-		return -1;
-
-	for (i = 0; dst && dst->xfrm; dst = dst->child, i++) {
-		pos = strict ? i : 0;
-		if (pos >= info->len)
-			return 0;
-		e = &info->pol[pos];
-
-		if (match_xfrm_state(dst->xfrm, e)) {
-			if (!strict)
-				return 1;
-		} else if (strict)
-			return 0;
-	}
-
-	return strict ? i == info->len : 0;
-}
-
-static int match(const struct sk_buff *skb,
-                 const struct net_device *in,
-                 const struct net_device *out,
-                 const void *matchinfo,
-                 int offset,
-                 unsigned int protoff,
-                 int *hotdrop)
-{
-	const struct ipt_policy_info *info = matchinfo;
-	int ret;
-
-	if (info->flags & IPT_POLICY_MATCH_IN)
-		ret = match_policy_in(skb, info);
-	else
-		ret = match_policy_out(skb, info);
-
-	if (ret < 0)
-		ret = info->flags & IPT_POLICY_MATCH_NONE ? 1 : 0;
-	else if (info->flags & IPT_POLICY_MATCH_NONE)
-		ret = 0;
-
-	return ret;
-}
-
-static int checkentry(const char *tablename, const void *ip_void,
-                      void *matchinfo, unsigned int matchsize,
-                      unsigned int hook_mask)
-{
-	struct ipt_policy_info *info = matchinfo;
-
-	if (matchsize != IPT_ALIGN(sizeof(*info))) {
-		printk(KERN_ERR "ipt_policy: matchsize %u != %zu\n",
-		       matchsize, IPT_ALIGN(sizeof(*info)));
-		return 0;
-	}
-	if (!(info->flags & (IPT_POLICY_MATCH_IN|IPT_POLICY_MATCH_OUT))) {
-		printk(KERN_ERR "ipt_policy: neither incoming nor "
-		                "outgoing policy selected\n");
-		return 0;
-	}
-	if (hook_mask & (1 << NF_IP_PRE_ROUTING | 1 << NF_IP_LOCAL_IN)
-	    && info->flags & IPT_POLICY_MATCH_OUT) {
-		printk(KERN_ERR "ipt_policy: output policy not valid in "
-		                "PRE_ROUTING and INPUT\n");
-		return 0;
-	}
-	if (hook_mask & (1 << NF_IP_POST_ROUTING | 1 << NF_IP_LOCAL_OUT)
-	    && info->flags & IPT_POLICY_MATCH_IN) {
-		printk(KERN_ERR "ipt_policy: input policy not valid in "
-		                "POST_ROUTING and OUTPUT\n");
-		return 0;
-	}
-	if (info->len > IPT_POLICY_MAX_ELEM) {
-		printk(KERN_ERR "ipt_policy: too many policy elements\n");
-		return 0;
-	}
-
-	return 1;
-}
-
-static struct ipt_match policy_match = {
-	.name		= "policy",
-	.match		= match,
-	.checkentry 	= checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ipt_register_match(&policy_match);
-}
-
-static void __exit fini(void)
-{
-	ipt_unregister_match(&policy_match);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv4/netfilter/ipt_recent.c b/net/ipv4/netfilter/ipt_recent.c
index 44611d6..06792ea 100644
--- a/net/ipv4/netfilter/ipt_recent.c
+++ b/net/ipv4/netfilter/ipt_recent.c
@@ -102,6 +102,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -318,7 +319,7 @@ static int ip_recent_ctrl(struct file *file, const char __user *input, unsigned
 	skb->nh.iph->daddr = 0;
 	/* Clear ttl since we have no way of knowing it */
 	skb->nh.iph->ttl = 0;
-	match(skb,NULL,NULL,info,0,0,NULL);
+	match(skb,NULL,NULL,NULL,info,0,0,NULL);
 
 	kfree(skb->nh.iph);
 out_free_skb:
@@ -356,6 +357,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -657,6 +659,7 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
            const void *ip,
+	   const struct xt_match *match,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
@@ -670,8 +673,6 @@ checkentry(const char *tablename,
 	if(debug) printk(KERN_INFO RECENT_NAME ": checkentry() entered.\n");
 #endif
 
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_recent_info))) return 0;
-
 	/* seconds and hit_count only valid for CHECK/UPDATE */
 	if(info->check_set & IPT_RECENT_SET) { flag++; if(info->seconds || info->hit_count) return 0; }
 	if(info->check_set & IPT_RECENT_REMOVE) { flag++; if(info->seconds || info->hit_count) return 0; }
@@ -871,7 +872,7 @@ checkentry(const char *tablename,
  * up its memory.
  */
 static void
-destroy(void *matchinfo, unsigned int matchsize)
+destroy(const struct xt_match *match, void *matchinfo, unsigned int matchsize)
 {
 	const struct ipt_recent_info *info = matchinfo;
 	struct recent_ip_tables *curr_table, *last_table;
@@ -951,12 +952,13 @@ destroy(void *matchinfo, unsigned int matchsize)
 /* This is the structure we pass to ipt_register to register our
  * module with iptables.
  */
-static struct ipt_match recent_match = { 
-  .name = "recent", 
-  .match = &match, 
-  .checkentry = &checkentry, 
-  .destroy = &destroy, 
-  .me = THIS_MODULE
+static struct ipt_match recent_match = {
+	.name		= "recent",
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_recent_info),
+	.checkentry	= checkentry,
+	.destroy	= destroy,
+	.me		= THIS_MODULE
 };
 
 /* Kernel module initialization. */
diff --git a/net/ipv4/netfilter/ipt_tos.c b/net/ipv4/netfilter/ipt_tos.c
index 9ab765e..e404e92d 100644
--- a/net/ipv4/netfilter/ipt_tos.c
+++ b/net/ipv4/netfilter/ipt_tos.c
@@ -21,6 +21,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -31,23 +32,10 @@ match(const struct sk_buff *skb,
 	return (skb->nh.iph->tos == info->tos) ^ info->invert;
 }
 
-static int
-checkentry(const char *tablename,
-           const void *ip,
-           void *matchinfo,
-           unsigned int matchsize,
-           unsigned int hook_mask)
-{
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_tos_info)))
-		return 0;
-
-	return 1;
-}
-
 static struct ipt_match tos_match = {
 	.name		= "tos",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_tos_info),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/ipt_ttl.c b/net/ipv4/netfilter/ipt_ttl.c
index 82da53f..ae7ce4d 100644
--- a/net/ipv4/netfilter/ipt_ttl.c
+++ b/net/ipv4/netfilter/ipt_ttl.c
@@ -19,8 +19,9 @@ MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
 MODULE_DESCRIPTION("IP tables TTL matching module");
 MODULE_LICENSE("GPL");
 
-static int match(const struct sk_buff *skb, const struct net_device *in,
-		 const struct net_device *out, const void *matchinfo,
+static int match(const struct sk_buff *skb,
+		 const struct net_device *in, const struct net_device *out,
+		 const struct xt_match *match, const void *matchinfo,
 		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_ttl_info *info = matchinfo;
@@ -47,20 +48,10 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return 0;
 }
 
-static int checkentry(const char *tablename, const void  *ip,
-		      void *matchinfo, unsigned int matchsize,
-		      unsigned int hook_mask)
-{
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_ttl_info)))
-		return 0;
-
-	return 1;
-}
-
 static struct ipt_match ttl_match = {
 	.name		= "ttl",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ipt_ttl_info),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 6c8624a..c8abc9d 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -141,19 +141,21 @@ static unsigned int ipv4_conntrack_help(unsigned int hooknum,
 {
 	struct nf_conn *ct;
 	enum ip_conntrack_info ctinfo;
+	struct nf_conn_help *help;
 
 	/* This is where we call the helper: as the packet goes out. */
 	ct = nf_ct_get(*pskb, &ctinfo);
-	if (ct && ct->helper) {
-		unsigned int ret;
-		ret = ct->helper->help(pskb,
-				       (*pskb)->nh.raw - (*pskb)->data
-						       + (*pskb)->nh.iph->ihl*4,
-				       ct, ctinfo);
-		if (ret != NF_ACCEPT)
-			return ret;
-	}
-	return NF_ACCEPT;
+	if (!ct)
+		return NF_ACCEPT;
+
+	help = nfct_help(ct);
+	if (!help || !help->helper)
+		return NF_ACCEPT;
+
+	return help->helper->help(pskb,
+			       (*pskb)->nh.raw - (*pskb)->data
+					       + (*pskb)->nh.iph->ihl*4,
+			       ct, ctinfo);
 }
 
 static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
@@ -566,6 +568,7 @@ static int init_or_cleanup(int init)
 	return ret;
 }
 
+MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET));
 MODULE_LICENSE("GPL");
 
 static int __init init(void)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index f29a12d..fc25624 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -660,12 +660,9 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
 out:	return ret;
 }
 
-static int raw_setsockopt(struct sock *sk, int level, int optname, 
+static int do_raw_setsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int optlen)
 {
-	if (level != SOL_RAW)
-		return ip_setsockopt(sk, level, optname, optval, optlen);
-
 	if (optname == ICMP_FILTER) {
 		if (inet_sk(sk)->num != IPPROTO_ICMP)
 			return -EOPNOTSUPP;
@@ -675,12 +672,27 @@ static int raw_setsockopt(struct sock *sk, int level, int optname,
 	return -ENOPROTOOPT;
 }
 
-static int raw_getsockopt(struct sock *sk, int level, int optname, 
-			  char __user *optval, int __user *optlen)
+static int raw_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int optlen)
 {
 	if (level != SOL_RAW)
-		return ip_getsockopt(sk, level, optname, optval, optlen);
+		return ip_setsockopt(sk, level, optname, optval, optlen);
+	return do_raw_setsockopt(sk, level, optname, optval, optlen);
+}
 
+#ifdef CONFIG_COMPAT
+static int compat_raw_setsockopt(struct sock *sk, int level, int optname,
+				 char __user *optval, int optlen)
+{
+	if (level != SOL_RAW)
+		return compat_ip_setsockopt(sk, level, optname, optval, optlen);
+	return do_raw_setsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
+static int do_raw_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
 	if (optname == ICMP_FILTER) {
 		if (inet_sk(sk)->num != IPPROTO_ICMP)
 			return -EOPNOTSUPP;
@@ -690,6 +702,24 @@ static int raw_getsockopt(struct sock *sk, int level, int optname,
 	return -ENOPROTOOPT;
 }
 
+static int raw_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
+	if (level != SOL_RAW)
+		return ip_getsockopt(sk, level, optname, optval, optlen);
+	return do_raw_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_raw_getsockopt(struct sock *sk, int level, int optname,
+				 char __user *optval, int __user *optlen)
+{
+	if (level != SOL_RAW)
+		return compat_ip_getsockopt(sk, level, optname, optval, optlen);
+	return do_raw_getsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
 static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
 {
 	switch (cmd) {
@@ -719,22 +749,26 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
 }
 
 struct proto raw_prot = {
-	.name =		"RAW",
-	.owner =	THIS_MODULE,
-	.close =	raw_close,
-	.connect =	ip4_datagram_connect,
-	.disconnect =	udp_disconnect,
-	.ioctl =	raw_ioctl,
-	.init =		raw_init,
-	.setsockopt =	raw_setsockopt,
-	.getsockopt =	raw_getsockopt,
-	.sendmsg =	raw_sendmsg,
-	.recvmsg =	raw_recvmsg,
-	.bind =		raw_bind,
-	.backlog_rcv =	raw_rcv_skb,
-	.hash =		raw_v4_hash,
-	.unhash =	raw_v4_unhash,
-	.obj_size =	sizeof(struct raw_sock),
+	.name		   = "RAW",
+	.owner		   = THIS_MODULE,
+	.close		   = raw_close,
+	.connect	   = ip4_datagram_connect,
+	.disconnect	   = udp_disconnect,
+	.ioctl		   = raw_ioctl,
+	.init		   = raw_init,
+	.setsockopt	   = raw_setsockopt,
+	.getsockopt	   = raw_getsockopt,
+	.sendmsg	   = raw_sendmsg,
+	.recvmsg	   = raw_recvmsg,
+	.bind		   = raw_bind,
+	.backlog_rcv	   = raw_rcv_skb,
+	.hash		   = raw_v4_hash,
+	.unhash		   = raw_v4_unhash,
+	.obj_size	   = sizeof(struct raw_sock),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_raw_setsockopt,
+	.compat_getsockopt = compat_raw_getsockopt,
+#endif
 };
 
 #ifdef CONFIG_PROC_FS
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 16984d4..6b6c3ad 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -664,7 +664,30 @@ ctl_table ipv4_table[] = {
 		.mode		= 0644,
 		.proc_handler	= &proc_dointvec,
 	},
-
+	{
+		.ctl_name	= NET_TCP_MTU_PROBING,
+		.procname	= "tcp_mtu_probing",
+		.data		= &sysctl_tcp_mtu_probing,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= NET_TCP_BASE_MSS,
+		.procname	= "tcp_base_mss",
+		.data		= &sysctl_tcp_base_mss,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+        {
+		.ctl_name	= NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS,
+		.procname	= "tcp_workaround_signed_windows",
+		.data		= &sysctl_tcp_workaround_signed_windows,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
 	{ .ctl_name = 0 }
 };
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 00aa80e..4b0272c 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1687,18 +1687,14 @@ int tcp_disconnect(struct sock *sk, int flags)
 /*
  *	Socket option code for TCP.
  */
-int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
-		   int optlen)
+static int do_tcp_setsockopt(struct sock *sk, int level,
+		int optname, char __user *optval, int optlen)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	int val;
 	int err = 0;
 
-	if (level != SOL_TCP)
-		return icsk->icsk_af_ops->setsockopt(sk, level, optname,
-						     optval, optlen);
-
 	/* This is a string value all the others are int's */
 	if (optname == TCP_CONGESTION) {
 		char name[TCP_CA_NAME_MAX];
@@ -1871,6 +1867,30 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
 	return err;
 }
 
+int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
+		   int optlen)
+{
+	struct inet_connection_sock *icsk = inet_csk(sk);
+
+	if (level != SOL_TCP)
+		return icsk->icsk_af_ops->setsockopt(sk, level, optname,
+						     optval, optlen);
+	return do_tcp_setsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+int compat_tcp_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int optlen)
+{
+	if (level != SOL_TCP)
+		return inet_csk_compat_setsockopt(sk, level, optname,
+						  optval, optlen);
+	return do_tcp_setsockopt(sk, level, optname, optval, optlen);
+}
+
+EXPORT_SYMBOL(compat_tcp_setsockopt);
+#endif
+
 /* Return information about state of tcp endpoint in API format. */
 void tcp_get_info(struct sock *sk, struct tcp_info *info)
 {
@@ -1931,17 +1951,13 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info)
 
 EXPORT_SYMBOL_GPL(tcp_get_info);
 
-int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
-		   int __user *optlen)
+static int do_tcp_getsockopt(struct sock *sk, int level,
+		int optname, char __user *optval, int __user *optlen)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
 	int val, len;
 
-	if (level != SOL_TCP)
-		return icsk->icsk_af_ops->getsockopt(sk, level, optname,
-						     optval, optlen);
-
 	if (get_user(len, optlen))
 		return -EFAULT;
 
@@ -2025,6 +2041,29 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
 	return 0;
 }
 
+int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
+		   int __user *optlen)
+{
+	struct inet_connection_sock *icsk = inet_csk(sk);
+
+	if (level != SOL_TCP)
+		return icsk->icsk_af_ops->getsockopt(sk, level, optname,
+						     optval, optlen);
+	return do_tcp_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
+	if (level != SOL_TCP)
+		return inet_csk_compat_getsockopt(sk, level, optname,
+						  optval, optlen);
+	return do_tcp_getsockopt(sk, level, optname, optval, optlen);
+}
+
+EXPORT_SYMBOL(compat_tcp_getsockopt);
+#endif
 
 extern void __skb_cb_too_small_for_tcp(int, int);
 extern struct tcp_congestion_ops tcp_reno;
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index 63cf7e5..e0e9d13 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -125,7 +125,7 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt,
 		/* Update AIMD parameters */
 		if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) {
 			while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
-			       ca->ai < HSTCP_AIMD_MAX)
+			       ca->ai < HSTCP_AIMD_MAX - 1)
 				ca->ai++;
 		} else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) {
 			while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 128de4d..1b2ff53 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -27,12 +27,12 @@ struct htcp {
 	u16	alpha;		/* Fixed point arith, << 7 */
 	u8	beta;           /* Fixed point arith, << 7 */
 	u8	modeswitch;     /* Delay modeswitch until we had at least one congestion event */
-	u8	ccount;		/* Number of RTTs since last congestion event */
-	u8	undo_ccount;
-	u16	packetcount;
+	u32	last_cong;	/* Time since last congestion event end */
+	u32	undo_last_cong;
+	u16	pkts_acked;
+	u32	packetcount;
 	u32	minRTT;
 	u32	maxRTT;
-	u32	snd_cwnd_cnt2;
 
 	u32	undo_maxRTT;
 	u32	undo_old_maxB;
@@ -45,21 +45,30 @@ struct htcp {
 	u32	lasttime;
 };
 
+static inline u32 htcp_cong_time(struct htcp *ca)
+{
+	return jiffies - ca->last_cong;
+}
+
+static inline u32 htcp_ccount(struct htcp *ca)
+{
+	return htcp_cong_time(ca)/ca->minRTT;
+}
+
 static inline void htcp_reset(struct htcp *ca)
 {
-	ca->undo_ccount = ca->ccount;
+	ca->undo_last_cong = ca->last_cong;
 	ca->undo_maxRTT = ca->maxRTT;
 	ca->undo_old_maxB = ca->old_maxB;
 
-	ca->ccount = 0;
-	ca->snd_cwnd_cnt2 = 0;
+	ca->last_cong = jiffies;
 }
 
 static u32 htcp_cwnd_undo(struct sock *sk)
 {
 	const struct tcp_sock *tp = tcp_sk(sk);
 	struct htcp *ca = inet_csk_ca(sk);
-	ca->ccount = ca->undo_ccount;
+	ca->last_cong = ca->undo_last_cong;
 	ca->maxRTT = ca->undo_maxRTT;
 	ca->old_maxB = ca->undo_old_maxB;
 	return max(tp->snd_cwnd, (tp->snd_ssthresh<<7)/ca->beta);
@@ -77,10 +86,10 @@ static inline void measure_rtt(struct sock *sk)
 		ca->minRTT = srtt;
 
 	/* max RTT */
-	if (icsk->icsk_ca_state == TCP_CA_Open && tp->snd_ssthresh < 0xFFFF && ca->ccount > 3) {
+	if (icsk->icsk_ca_state == TCP_CA_Open && tp->snd_ssthresh < 0xFFFF && htcp_ccount(ca) > 3) {
 		if (ca->maxRTT < ca->minRTT)
 			ca->maxRTT = ca->minRTT;
-		if (ca->maxRTT < srtt && srtt <= ca->maxRTT+HZ/50)
+		if (ca->maxRTT < srtt && srtt <= ca->maxRTT+msecs_to_jiffies(20))
 			ca->maxRTT = srtt;
 	}
 }
@@ -92,6 +101,12 @@ static void measure_achieved_throughput(struct sock *sk, u32 pkts_acked)
 	struct htcp *ca = inet_csk_ca(sk);
 	u32 now = tcp_time_stamp;
 
+	if (icsk->icsk_ca_state == TCP_CA_Open)
+		ca->pkts_acked = pkts_acked;
+
+	if (!use_bandwidth_switch)
+		return;
+
 	/* achieved throughput calculations */
 	if (icsk->icsk_ca_state != TCP_CA_Open &&
 	    icsk->icsk_ca_state != TCP_CA_Disorder) {
@@ -106,7 +121,7 @@ static void measure_achieved_throughput(struct sock *sk, u32 pkts_acked)
 			&& now - ca->lasttime >= ca->minRTT
 			&& ca->minRTT > 0) {
 		__u32 cur_Bi = ca->packetcount*HZ/(now - ca->lasttime);
-		if (ca->ccount <= 3) {
+		if (htcp_ccount(ca) <= 3) {
 			/* just after backoff */
 			ca->minB = ca->maxB = ca->Bi = cur_Bi;
 		} else {
@@ -135,7 +150,7 @@ static inline void htcp_beta_update(struct htcp *ca, u32 minRTT, u32 maxRTT)
 		}
 	}
 
-	if (ca->modeswitch && minRTT > max(HZ/100, 1) && maxRTT) {
+	if (ca->modeswitch && minRTT > msecs_to_jiffies(10) && maxRTT) {
 		ca->beta = (minRTT<<7)/maxRTT;
 		if (ca->beta < BETA_MIN)
 			ca->beta = BETA_MIN;
@@ -151,7 +166,7 @@ static inline void htcp_alpha_update(struct htcp *ca)
 {
 	u32 minRTT = ca->minRTT;
 	u32 factor = 1;
-	u32 diff = ca->ccount * minRTT; /* time since last backoff */
+	u32 diff = htcp_cong_time(ca);
 
 	if (diff > HZ) {
 		diff -= HZ;
@@ -216,21 +231,18 @@ static void htcp_cong_avoid(struct sock *sk, u32 ack, u32 rtt,
 
 		measure_rtt(sk);
 
-		/* keep track of number of round-trip times since last backoff event */
-		if (ca->snd_cwnd_cnt2++ > tp->snd_cwnd) {
-			ca->ccount++;
-			ca->snd_cwnd_cnt2 = 0;
-			htcp_alpha_update(ca);
-		}
-
 		/* In dangerous area, increase slowly.
 		 * In theory this is tp->snd_cwnd += alpha / tp->snd_cwnd
 		 */
-		if ((tp->snd_cwnd_cnt++ * ca->alpha)>>7 >= tp->snd_cwnd) {
+		if ((tp->snd_cwnd_cnt * ca->alpha)>>7 >= tp->snd_cwnd) {
 			if (tp->snd_cwnd < tp->snd_cwnd_clamp)
 				tp->snd_cwnd++;
 			tp->snd_cwnd_cnt = 0;
-		}
+			htcp_alpha_update(ca);
+		} else
+			tp->snd_cwnd_cnt += ca->pkts_acked;
+
+		ca->pkts_acked = 1;
 	}
 }
 
@@ -249,11 +261,19 @@ static void htcp_init(struct sock *sk)
 	memset(ca, 0, sizeof(struct htcp));
 	ca->alpha = ALPHA_BASE;
 	ca->beta = BETA_MIN;
+	ca->pkts_acked = 1;
+	ca->last_cong = jiffies;
 }
 
 static void htcp_state(struct sock *sk, u8 new_state)
 {
 	switch (new_state) {
+	case TCP_CA_Open:
+		{
+			struct htcp *ca = inet_csk_ca(sk);
+			ca->last_cong = jiffies;
+		}
+		break;
 	case TCP_CA_CWR:
 	case TCP_CA_Recovery:
 	case TCP_CA_Loss:
@@ -278,8 +298,6 @@ static int __init htcp_register(void)
 {
 	BUG_ON(sizeof(struct htcp) > ICSK_CA_PRIV_SIZE);
 	BUILD_BUG_ON(BETA_MIN >= BETA_MAX);
-	if (!use_bandwidth_switch)
-		htcp.pkts_acked = NULL;
 	return tcp_register_congestion_control(&htcp);
 }
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e9a54ae..195d835 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1891,6 +1891,34 @@ static void tcp_try_to_open(struct sock *sk, struct tcp_sock *tp, int flag)
 	}
 }
 
+static void tcp_mtup_probe_failed(struct sock *sk)
+{
+	struct inet_connection_sock *icsk = inet_csk(sk);
+
+	icsk->icsk_mtup.search_high = icsk->icsk_mtup.probe_size - 1;
+	icsk->icsk_mtup.probe_size = 0;
+}
+
+static void tcp_mtup_probe_success(struct sock *sk, struct sk_buff *skb)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
+
+	/* FIXME: breaks with very large cwnd */
+	tp->prior_ssthresh = tcp_current_ssthresh(sk);
+	tp->snd_cwnd = tp->snd_cwnd *
+		       tcp_mss_to_mtu(sk, tp->mss_cache) /
+		       icsk->icsk_mtup.probe_size;
+	tp->snd_cwnd_cnt = 0;
+	tp->snd_cwnd_stamp = tcp_time_stamp;
+	tp->rcv_ssthresh = tcp_current_ssthresh(sk);
+
+	icsk->icsk_mtup.search_low = icsk->icsk_mtup.probe_size;
+	icsk->icsk_mtup.probe_size = 0;
+	tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
+}
+
+
 /* Process an event, which can update packets-in-flight not trivially.
  * Main goal of this function is to calculate new estimate for left_out,
  * taking into account both packets sitting in receiver's buffer and
@@ -2023,6 +2051,17 @@ tcp_fastretrans_alert(struct sock *sk, u32 prior_snd_una,
 			return;
 		}
 
+		/* MTU probe failure: don't reduce cwnd */
+		if (icsk->icsk_ca_state < TCP_CA_CWR &&
+		    icsk->icsk_mtup.probe_size &&
+		    tp->snd_una == tp->mtu_probe.probe_seq_start) {
+			tcp_mtup_probe_failed(sk);
+			/* Restores the reduction we did in tcp_mtup_probe() */
+			tp->snd_cwnd++;
+			tcp_simple_retransmit(sk);
+			return;
+		}
+
 		/* Otherwise enter Recovery state */
 
 		if (IsReno(tp))
@@ -2243,6 +2282,13 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
 			tp->retrans_stamp = 0;
 		}
 
+		/* MTU probing checks */
+		if (icsk->icsk_mtup.probe_size) {
+			if (!after(tp->mtu_probe.probe_seq_end, TCP_SKB_CB(skb)->end_seq)) {
+				tcp_mtup_probe_success(sk, skb);
+			}
+		}
+
 		if (sacked) {
 			if (sacked & TCPCB_RETRANS) {
 				if(sacked & TCPCB_SACKED_RETRANS)
@@ -4101,6 +4147,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
 		if (tp->rx_opt.sack_ok && sysctl_tcp_fack)
 			tp->rx_opt.sack_ok |= 2;
 
+		tcp_mtup_init(sk);
 		tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
 		tcp_initialize_rcv_mss(sk);
 
@@ -4211,6 +4258,7 @@ discard:
 		if (tp->ecn_flags&TCP_ECN_OK)
 			sock_set_flag(sk, SOCK_NO_LARGESEND);
 
+		tcp_mtup_init(sk);
 		tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
 		tcp_initialize_rcv_mss(sk);
 
@@ -4399,6 +4447,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 				 */
 				tp->lsndtime = tcp_time_stamp;
 
+				tcp_mtup_init(sk);
 				tcp_initialize_rcv_mss(sk);
 				tcp_init_buffer_space(sk);
 				tcp_fast_path_on(tp);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 233bdf2..9e85c04 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -900,6 +900,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 		inet_csk(newsk)->icsk_ext_hdr_len = newinet->opt->optlen;
 	newinet->id = newtp->write_seq ^ jiffies;
 
+	tcp_mtup_init(newsk);
 	tcp_sync_mss(newsk, dst_mtu(dst));
 	newtp->advmss = dst_metric(dst, RTAX_ADVMSS);
 	tcp_initialize_rcv_mss(newsk);
@@ -1216,17 +1217,21 @@ int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw)
 }
 
 struct inet_connection_sock_af_ops ipv4_specific = {
-	.queue_xmit	=	ip_queue_xmit,
-	.send_check	=	tcp_v4_send_check,
-	.rebuild_header	=	inet_sk_rebuild_header,
-	.conn_request	=	tcp_v4_conn_request,
-	.syn_recv_sock	=	tcp_v4_syn_recv_sock,
-	.remember_stamp	=	tcp_v4_remember_stamp,
-	.net_header_len	=	sizeof(struct iphdr),
-	.setsockopt	=	ip_setsockopt,
-	.getsockopt	=	ip_getsockopt,
-	.addr2sockaddr	=	inet_csk_addr2sockaddr,
-	.sockaddr_len	=	sizeof(struct sockaddr_in),
+	.queue_xmit	   = ip_queue_xmit,
+	.send_check	   = tcp_v4_send_check,
+	.rebuild_header	   = inet_sk_rebuild_header,
+	.conn_request	   = tcp_v4_conn_request,
+	.syn_recv_sock	   = tcp_v4_syn_recv_sock,
+	.remember_stamp	   = tcp_v4_remember_stamp,
+	.net_header_len	   = sizeof(struct iphdr),
+	.setsockopt	   = ip_setsockopt,
+	.getsockopt	   = ip_getsockopt,
+	.addr2sockaddr	   = inet_csk_addr2sockaddr,
+	.sockaddr_len	   = sizeof(struct sockaddr_in),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_ip_setsockopt,
+	.compat_getsockopt = compat_ip_getsockopt,
+#endif
 };
 
 /* NOTE: A lot of things set to zero explicitly by call to
@@ -1825,23 +1830,16 @@ struct proto tcp_prot = {
 	.obj_size		= sizeof(struct tcp_sock),
 	.twsk_prot		= &tcp_timewait_sock_ops,
 	.rsk_prot		= &tcp_request_sock_ops,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt	= compat_tcp_setsockopt,
+	.compat_getsockopt	= compat_tcp_getsockopt,
+#endif
 };
 
-
-
 void __init tcp_v4_init(struct net_proto_family *ops)
 {
-	int err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_TCP, &tcp_socket);
-	if (err < 0)
+	if (inet_csk_ctl_sock_create(&tcp_socket, PF_INET, SOCK_RAW, IPPROTO_TCP) < 0)
 		panic("Failed to create the TCP control socket.\n");
-	tcp_socket->sk->sk_allocation   = GFP_ATOMIC;
-	inet_sk(tcp_socket->sk)->uc_ttl = -1;
-
-	/* Unhash it so that IP input processing does not even
-	 * see it, we do not wish this socket to see incoming
-	 * packets.
-	 */
-	tcp_socket->sk->sk_prot->unhash(tcp_socket->sk);
 }
 
 EXPORT_SYMBOL(ipv4_specific);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index a7623ea..9d79546 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -45,12 +45,23 @@
 /* People can turn this off for buggy TCP's found in printers etc. */
 int sysctl_tcp_retrans_collapse = 1;
 
+/* People can turn this on to  work with those rare, broken TCPs that
+ * interpret the window field as a signed quantity.
+ */
+int sysctl_tcp_workaround_signed_windows = 0;
+
 /* This limits the percentage of the congestion window which we
  * will allow a single TSO frame to consume.  Building TSO frames
  * which are too large can cause TCP streams to be bursty.
  */
 int sysctl_tcp_tso_win_divisor = 3;
 
+int sysctl_tcp_mtu_probing = 0;
+int sysctl_tcp_base_mss = 512;
+
+EXPORT_SYMBOL(sysctl_tcp_mtu_probing);
+EXPORT_SYMBOL(sysctl_tcp_base_mss);
+
 static void update_send_head(struct sock *sk, struct tcp_sock *tp,
 			     struct sk_buff *skb)
 {
@@ -171,12 +182,18 @@ void tcp_select_initial_window(int __space, __u32 mss,
 		space = (space / mss) * mss;
 
 	/* NOTE: offering an initial window larger than 32767
-	 * will break some buggy TCP stacks. We try to be nice.
-	 * If we are not window scaling, then this truncates
-	 * our initial window offering to 32k. There should also
-	 * be a sysctl option to stop being nice.
+	 * will break some buggy TCP stacks. If the admin tells us
+	 * it is likely we could be speaking with such a buggy stack
+	 * we will truncate our initial window offering to 32K-1
+	 * unless the remote has sent us a window scaling option,
+	 * which we interpret as a sign the remote TCP is not
+	 * misinterpreting the window field as a signed quantity.
 	 */
-	(*rcv_wnd) = min(space, MAX_TCP_WINDOW);
+	if (sysctl_tcp_workaround_signed_windows)
+		(*rcv_wnd) = min(space, MAX_TCP_WINDOW);
+	else
+		(*rcv_wnd) = space;
+
 	(*rcv_wscale) = 0;
 	if (wscale_ok) {
 		/* Set window scaling on max possible window
@@ -235,7 +252,7 @@ static u16 tcp_select_window(struct sock *sk)
 	/* Make sure we do not exceed the maximum possible
 	 * scaled window.
 	 */
-	if (!tp->rx_opt.rcv_wscale)
+	if (!tp->rx_opt.rcv_wscale && sysctl_tcp_workaround_signed_windows)
 		new_win = min(new_win, MAX_TCP_WINDOW);
 	else
 		new_win = min(new_win, (65535U << tp->rx_opt.rcv_wscale));
@@ -681,6 +698,62 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
 	return 0;
 }
 
+/* Not accounting for SACKs here. */
+int tcp_mtu_to_mss(struct sock *sk, int pmtu)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
+	int mss_now;
+
+	/* Calculate base mss without TCP options:
+	   It is MMS_S - sizeof(tcphdr) of rfc1122
+	 */
+	mss_now = pmtu - icsk->icsk_af_ops->net_header_len - sizeof(struct tcphdr);
+
+	/* Clamp it (mss_clamp does not include tcp options) */
+	if (mss_now > tp->rx_opt.mss_clamp)
+		mss_now = tp->rx_opt.mss_clamp;
+
+	/* Now subtract optional transport overhead */
+	mss_now -= icsk->icsk_ext_hdr_len;
+
+	/* Then reserve room for full set of TCP options and 8 bytes of data */
+	if (mss_now < 48)
+		mss_now = 48;
+
+	/* Now subtract TCP options size, not including SACKs */
+	mss_now -= tp->tcp_header_len - sizeof(struct tcphdr);
+
+	return mss_now;
+}
+
+/* Inverse of above */
+int tcp_mss_to_mtu(struct sock *sk, int mss)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
+	int mtu;
+
+	mtu = mss +
+	      tp->tcp_header_len +
+	      icsk->icsk_ext_hdr_len +
+	      icsk->icsk_af_ops->net_header_len;
+
+	return mtu;
+}
+
+void tcp_mtup_init(struct sock *sk)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
+
+	icsk->icsk_mtup.enabled = sysctl_tcp_mtu_probing > 1;
+	icsk->icsk_mtup.search_high = tp->rx_opt.mss_clamp + sizeof(struct tcphdr) +
+	                       icsk->icsk_af_ops->net_header_len;
+	icsk->icsk_mtup.search_low = tcp_mss_to_mtu(sk, sysctl_tcp_base_mss);
+	icsk->icsk_mtup.probe_size = 0;
+}
+
 /* This function synchronize snd mss to current pmtu/exthdr set.
 
    tp->rx_opt.user_mss is mss set by user by TCP_MAXSEG. It does NOT counts
@@ -708,25 +781,12 @@ unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct inet_connection_sock *icsk = inet_csk(sk);
-	/* Calculate base mss without TCP options:
-	   It is MMS_S - sizeof(tcphdr) of rfc1122
-	 */
-	int mss_now = (pmtu - icsk->icsk_af_ops->net_header_len -
-		       sizeof(struct tcphdr));
+	int mss_now;
 
-	/* Clamp it (mss_clamp does not include tcp options) */
-	if (mss_now > tp->rx_opt.mss_clamp)
-		mss_now = tp->rx_opt.mss_clamp;
+	if (icsk->icsk_mtup.search_high > pmtu)
+		icsk->icsk_mtup.search_high = pmtu;
 
-	/* Now subtract optional transport overhead */
-	mss_now -= icsk->icsk_ext_hdr_len;
-
-	/* Then reserve room for full set of TCP options and 8 bytes of data */
-	if (mss_now < 48)
-		mss_now = 48;
-
-	/* Now subtract TCP options size, not including SACKs */
-	mss_now -= tp->tcp_header_len - sizeof(struct tcphdr);
+	mss_now = tcp_mtu_to_mss(sk, pmtu);
 
 	/* Bound mss with half of window */
 	if (tp->max_window && mss_now > (tp->max_window>>1))
@@ -734,6 +794,8 @@ unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu)
 
 	/* And store cached results */
 	icsk->icsk_pmtu_cookie = pmtu;
+	if (icsk->icsk_mtup.enabled)
+		mss_now = min(mss_now, tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_low));
 	tp->mss_cache = mss_now;
 
 	return mss_now;
@@ -1036,6 +1098,10 @@ static int tcp_tso_should_defer(struct sock *sk, struct tcp_sock *tp, struct sk_
 
 	limit = min(send_win, cong_win);
 
+	/* If a full-sized TSO skb can be sent, do it. */
+	if (limit >= 65536)
+		return 0;
+
 	if (sysctl_tcp_tso_win_divisor) {
 		u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);
 
@@ -1059,6 +1125,140 @@ static int tcp_tso_should_defer(struct sock *sk, struct tcp_sock *tp, struct sk_
 	return 1;
 }
 
+/* Create a new MTU probe if we are ready.
+ * Returns 0 if we should wait to probe (no cwnd available),
+ *         1 if a probe was sent,
+ *         -1 otherwise */
+static int tcp_mtu_probe(struct sock *sk)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
+	struct sk_buff *skb, *nskb, *next;
+	int len;
+	int probe_size;
+	unsigned int pif;
+	int copy;
+	int mss_now;
+
+	/* Not currently probing/verifying,
+	 * not in recovery,
+	 * have enough cwnd, and
+	 * not SACKing (the variable headers throw things off) */
+	if (!icsk->icsk_mtup.enabled ||
+	    icsk->icsk_mtup.probe_size ||
+	    inet_csk(sk)->icsk_ca_state != TCP_CA_Open ||
+	    tp->snd_cwnd < 11 ||
+	    tp->rx_opt.eff_sacks)
+		return -1;
+
+	/* Very simple search strategy: just double the MSS. */
+	mss_now = tcp_current_mss(sk, 0);
+	probe_size = 2*tp->mss_cache;
+	if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high)) {
+		/* TODO: set timer for probe_converge_event */
+		return -1;
+	}
+
+	/* Have enough data in the send queue to probe? */
+	len = 0;
+	if ((skb = sk->sk_send_head) == NULL)
+		return -1;
+	while ((len += skb->len) < probe_size && !tcp_skb_is_last(sk, skb))
+		skb = skb->next;
+	if (len < probe_size)
+		return -1;
+
+	/* Receive window check. */
+	if (after(TCP_SKB_CB(skb)->seq + probe_size, tp->snd_una + tp->snd_wnd)) {
+		if (tp->snd_wnd < probe_size)
+			return -1;
+		else
+			return 0;
+	}
+
+	/* Do we need to wait to drain cwnd? */
+	pif = tcp_packets_in_flight(tp);
+	if (pif + 2 > tp->snd_cwnd) {
+		/* With no packets in flight, don't stall. */
+		if (pif == 0)
+			return -1;
+		else
+			return 0;
+	}
+
+	/* We're allowed to probe.  Build it now. */
+	if ((nskb = sk_stream_alloc_skb(sk, probe_size, GFP_ATOMIC)) == NULL)
+		return -1;
+	sk_charge_skb(sk, nskb);
+
+	skb = sk->sk_send_head;
+	__skb_insert(nskb, skb->prev, skb, &sk->sk_write_queue);
+	sk->sk_send_head = nskb;
+
+	TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(skb)->seq;
+	TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size;
+	TCP_SKB_CB(nskb)->flags = TCPCB_FLAG_ACK;
+	TCP_SKB_CB(nskb)->sacked = 0;
+	nskb->csum = 0;
+	if (skb->ip_summed == CHECKSUM_HW)
+		nskb->ip_summed = CHECKSUM_HW;
+
+	len = 0;
+	while (len < probe_size) {
+		next = skb->next;
+
+		copy = min_t(int, skb->len, probe_size - len);
+		if (nskb->ip_summed)
+			skb_copy_bits(skb, 0, skb_put(nskb, copy), copy);
+		else
+			nskb->csum = skb_copy_and_csum_bits(skb, 0,
+			                 skb_put(nskb, copy), copy, nskb->csum);
+
+		if (skb->len <= copy) {
+			/* We've eaten all the data from this skb.
+			 * Throw it away. */
+			TCP_SKB_CB(nskb)->flags |= TCP_SKB_CB(skb)->flags;
+			__skb_unlink(skb, &sk->sk_write_queue);
+			sk_stream_free_skb(sk, skb);
+		} else {
+			TCP_SKB_CB(nskb)->flags |= TCP_SKB_CB(skb)->flags &
+			                           ~(TCPCB_FLAG_FIN|TCPCB_FLAG_PSH);
+			if (!skb_shinfo(skb)->nr_frags) {
+				skb_pull(skb, copy);
+				if (skb->ip_summed != CHECKSUM_HW)
+					skb->csum = csum_partial(skb->data, skb->len, 0);
+			} else {
+				__pskb_trim_head(skb, copy);
+				tcp_set_skb_tso_segs(sk, skb, mss_now);
+			}
+			TCP_SKB_CB(skb)->seq += copy;
+		}
+
+		len += copy;
+		skb = next;
+	}
+	tcp_init_tso_segs(sk, nskb, nskb->len);
+
+	/* We're ready to send.  If this fails, the probe will
+	 * be resegmented into mss-sized pieces by tcp_write_xmit(). */
+	TCP_SKB_CB(nskb)->when = tcp_time_stamp;
+	if (!tcp_transmit_skb(sk, nskb, 1, GFP_ATOMIC)) {
+		/* Decrement cwnd here because we are sending
+		* effectively two packets. */
+		tp->snd_cwnd--;
+		update_send_head(sk, tp, nskb);
+
+		icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);
+		tp->mtu_probe.probe_seq_start = TCP_SKB_CB(nskb)->seq;
+		tp->mtu_probe.probe_seq_end = TCP_SKB_CB(nskb)->end_seq;
+
+		return 1;
+	}
+
+	return -1;
+}
+
+
 /* This routine writes packets to the network.  It advances the
  * send_head.  This happens as incoming acks open up the remote
  * window for us.
@@ -1072,6 +1272,7 @@ static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle)
 	struct sk_buff *skb;
 	unsigned int tso_segs, sent_pkts;
 	int cwnd_quota;
+	int result;
 
 	/* If we are closed, the bytes will have to remain here.
 	 * In time closedown will finish, we empty the write queue and all
@@ -1081,6 +1282,14 @@ static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle)
 		return 0;
 
 	sent_pkts = 0;
+
+	/* Do MTU probing. */
+	if ((result = tcp_mtu_probe(sk)) == 0) {
+		return 0;
+	} else if (result > 0) {
+		sent_pkts = 1;
+	}
+
 	while ((skb = sk->sk_send_head)) {
 		unsigned int limit;
 
@@ -1451,9 +1660,15 @@ void tcp_simple_retransmit(struct sock *sk)
 int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
  	unsigned int cur_mss = tcp_current_mss(sk, 0);
 	int err;
 
+	/* Inconslusive MTU probe */
+	if (icsk->icsk_mtup.probe_size) {
+		icsk->icsk_mtup.probe_size = 0;
+	}
+
 	/* Do not sent more than we queued. 1/4 is reserved for possible
 	 * copying overhead: fragmentation, tunneling, mangling etc.
 	 */
@@ -1879,6 +2094,7 @@ static void tcp_connect_init(struct sock *sk)
 	if (tp->rx_opt.user_mss)
 		tp->rx_opt.mss_clamp = tp->rx_opt.user_mss;
 	tp->max_window = 0;
+	tcp_mtup_init(sk);
 	tcp_sync_mss(sk, dst_mtu(dst));
 
 	if (!tp->window_clamp)
@@ -2176,3 +2392,4 @@ EXPORT_SYMBOL(tcp_make_synack);
 EXPORT_SYMBOL(tcp_simple_retransmit);
 EXPORT_SYMBOL(tcp_sync_mss);
 EXPORT_SYMBOL(sysctl_tcp_tso_win_divisor);
+EXPORT_SYMBOL(tcp_mtup_init);
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index e188095..7c1bde3 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -119,8 +119,10 @@ static int tcp_orphan_retries(struct sock *sk, int alive)
 /* A write timeout has occurred. Process the after effects. */
 static int tcp_write_timeout(struct sock *sk)
 {
-	const struct inet_connection_sock *icsk = inet_csk(sk);
+	struct inet_connection_sock *icsk = inet_csk(sk);
+	struct tcp_sock *tp = tcp_sk(sk);
 	int retry_until;
+	int mss;
 
 	if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
 		if (icsk->icsk_retransmits)
@@ -128,25 +130,19 @@ static int tcp_write_timeout(struct sock *sk)
 		retry_until = icsk->icsk_syn_retries ? : sysctl_tcp_syn_retries;
 	} else {
 		if (icsk->icsk_retransmits >= sysctl_tcp_retries1) {
-			/* NOTE. draft-ietf-tcpimpl-pmtud-01.txt requires pmtu black
-			   hole detection. :-(
-
-			   It is place to make it. It is not made. I do not want
-			   to make it. It is disgusting. It does not work in any
-			   case. Let me to cite the same draft, which requires for
-			   us to implement this:
-
-   "The one security concern raised by this memo is that ICMP black holes
-   are often caused by over-zealous security administrators who block
-   all ICMP messages.  It is vitally important that those who design and
-   deploy security systems understand the impact of strict filtering on
-   upper-layer protocols.  The safest web site in the world is worthless
-   if most TCP implementations cannot transfer data from it.  It would
-   be far nicer to have all of the black holes fixed rather than fixing
-   all of the TCP implementations."
-
-                           Golden words :-).
-		   */
+			/* Black hole detection */
+			if (sysctl_tcp_mtu_probing) {
+				if (!icsk->icsk_mtup.enabled) {
+					icsk->icsk_mtup.enabled = 1;
+					tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
+				} else {
+					mss = min(sysctl_tcp_base_mss,
+					          tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_low)/2);
+					mss = max(mss, 68 - tp->tcp_header_len);
+					icsk->icsk_mtup.search_low = tcp_mss_to_mtu(sk, mss);
+					tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
+				}
+			}
 
 			dst_negative_advice(&sk->sk_dst_cache);
 		}
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 0084047..3f93292 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1207,16 +1207,13 @@ static int udp_destroy_sock(struct sock *sk)
 /*
  *	Socket option code for UDP
  */
-static int udp_setsockopt(struct sock *sk, int level, int optname, 
+static int do_udp_setsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int optlen)
 {
 	struct udp_sock *up = udp_sk(sk);
 	int val;
 	int err = 0;
 
-	if (level != SOL_UDP)
-		return ip_setsockopt(sk, level, optname, optval, optlen);
-
 	if(optlen<sizeof(int))
 		return -EINVAL;
 
@@ -1256,15 +1253,30 @@ static int udp_setsockopt(struct sock *sk, int level, int optname,
 	return err;
 }
 
-static int udp_getsockopt(struct sock *sk, int level, int optname, 
+static int udp_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int optlen)
+{
+	if (level != SOL_UDP)
+		return ip_setsockopt(sk, level, optname, optval, optlen);
+	return do_udp_setsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udp_setsockopt(struct sock *sk, int level, int optname,
+				 char __user *optval, int optlen)
+{
+	if (level != SOL_UDP)
+		return compat_ip_setsockopt(sk, level, optname, optval, optlen);
+	return do_udp_setsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
+static int do_udp_getsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int __user *optlen)
 {
 	struct udp_sock *up = udp_sk(sk);
 	int val, len;
 
-	if (level != SOL_UDP)
-		return ip_getsockopt(sk, level, optname, optval, optlen);
-
 	if(get_user(len,optlen))
 		return -EFAULT;
 
@@ -1293,6 +1305,23 @@ static int udp_getsockopt(struct sock *sk, int level, int optname,
   	return 0;
 }
 
+static int udp_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
+	if (level != SOL_UDP)
+		return ip_getsockopt(sk, level, optname, optval, optlen);
+	return do_udp_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udp_getsockopt(struct sock *sk, int level, int optname,
+				 char __user *optval, int __user *optlen)
+{
+	if (level != SOL_UDP)
+		return compat_ip_getsockopt(sk, level, optname, optval, optlen);
+	return do_udp_getsockopt(sk, level, optname, optval, optlen);
+}
+#endif
 /**
  * 	udp_poll - wait for a UDP event.
  *	@file - file struct
@@ -1341,23 +1370,27 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
 }
 
 struct proto udp_prot = {
- 	.name =		"UDP",
-	.owner =	THIS_MODULE,
-	.close =	udp_close,
-	.connect =	ip4_datagram_connect,
-	.disconnect =	udp_disconnect,
-	.ioctl =	udp_ioctl,
-	.destroy =	udp_destroy_sock,
-	.setsockopt =	udp_setsockopt,
-	.getsockopt =	udp_getsockopt,
-	.sendmsg =	udp_sendmsg,
-	.recvmsg =	udp_recvmsg,
-	.sendpage =	udp_sendpage,
-	.backlog_rcv =	udp_queue_rcv_skb,
-	.hash =		udp_v4_hash,
-	.unhash =	udp_v4_unhash,
-	.get_port =	udp_v4_get_port,
-	.obj_size =	sizeof(struct udp_sock),
+ 	.name		   = "UDP",
+	.owner		   = THIS_MODULE,
+	.close		   = udp_close,
+	.connect	   = ip4_datagram_connect,
+	.disconnect	   = udp_disconnect,
+	.ioctl		   = udp_ioctl,
+	.destroy	   = udp_destroy_sock,
+	.setsockopt	   = udp_setsockopt,
+	.getsockopt	   = udp_getsockopt,
+	.sendmsg	   = udp_sendmsg,
+	.recvmsg	   = udp_recvmsg,
+	.sendpage	   = udp_sendpage,
+	.backlog_rcv	   = udp_queue_rcv_skb,
+	.hash		   = udp_v4_hash,
+	.unhash		   = udp_v4_unhash,
+	.get_port	   = udp_v4_get_port,
+	.obj_size	   = sizeof(struct udp_sock),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_udp_setsockopt,
+	.compat_getsockopt = compat_udp_getsockopt,
+#endif
 };
 
 /* ------------------------------------------------------------------------ */
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index afbb0d4..b08d56b 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -5,6 +5,7 @@
 
 #include <linux/skbuff.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 #include <net/xfrm.h>
 #include <net/ip.h>
 #include <net/protocol.h>
@@ -26,19 +27,19 @@ static int ipip_xfrm_rcv(struct xfrm_state *x, struct xfrm_decap_state *decap, s
 }
 
 static struct xfrm_tunnel *ipip_handler;
-static DECLARE_MUTEX(xfrm4_tunnel_sem);
+static DEFINE_MUTEX(xfrm4_tunnel_mutex);
 
 int xfrm4_tunnel_register(struct xfrm_tunnel *handler)
 {
 	int ret;
 
-	down(&xfrm4_tunnel_sem);
+	mutex_lock(&xfrm4_tunnel_mutex);
 	ret = 0;
 	if (ipip_handler != NULL)
 		ret = -EINVAL;
 	if (!ret)
 		ipip_handler = handler;
-	up(&xfrm4_tunnel_sem);
+	mutex_unlock(&xfrm4_tunnel_mutex);
 
 	return ret;
 }
@@ -49,13 +50,13 @@ int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler)
 {
 	int ret;
 
-	down(&xfrm4_tunnel_sem);
+	mutex_lock(&xfrm4_tunnel_mutex);
 	ret = 0;
 	if (ipip_handler != handler)
 		ret = -EINVAL;
 	if (!ret)
 		ipip_handler = NULL;
-	up(&xfrm4_tunnel_sem);
+	mutex_unlock(&xfrm4_tunnel_mutex);
 
 	synchronize_net();