Merge "msm: netfilter: NATTYPE Refresh Timer Changes" (d71bf758) · Commits · e / devices / android_kernel_fairphone_FP3

include/net/netfilter/nf_conntrack_core.h

+3 −1

Original line number	Original line	Diff line number	Diff line
	@@ -54,7 +54,9 @@ bool nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
	const struct nf_conntrack_l3proto *l3proto,		const struct nf_conntrack_l3proto *l3proto,
	const struct nf_conntrack_l4proto *l4proto);		const struct nf_conntrack_l4proto *l4proto);
	extern void (delete_sfe_entry)(struct nf_conn ct);		extern void (delete_sfe_entry)(struct nf_conn ct);
	extern bool (*nattype_refresh_timer)(unsigned long nattype);		extern bool (*nattype_refresh_timer)
			(unsigned long nattype,
			unsigned long timeout_value);

	/* Find a connection corresponding to a tuple. */		/* Find a connection corresponding to a tuple. */
	struct nf_conntrack_tuple_hash *		struct nf_conntrack_tuple_hash *

net/ipv4/netfilter/ipt_NATTYPE.c

+75 −56

Original line number	Original line	Diff line number	Diff line
	@@ -24,6 +24,7 @@
	* Ubicom32 implementation derived from		* Ubicom32 implementation derived from
	* Cameo's implementation(with many thanks):		* Cameo's implementation(with many thanks):
	*/		*/

	#include <linux/types.h>		#include <linux/types.h>
	#include <linux/ip.h>		#include <linux/ip.h>
	#include <linux/udp.h>		#include <linux/udp.h>
	@@ -36,21 +37,17 @@
	#include <linux/tcp.h>		#include <linux/tcp.h>
	#include <net/netfilter/nf_conntrack.h>		#include <net/netfilter/nf_conntrack.h>
	#include <net/netfilter/nf_conntrack_core.h>		#include <net/netfilter/nf_conntrack_core.h>
	#include <net/netfilter/nf_nat_rule.h>		#include <net/netfilter/nf_nat.h>
	#include <linux/netfilter/x_tables.h>		#include <linux/netfilter/x_tables.h>
	#include <linux/netfilter_ipv4/ipt_NATTYPE.h>		#include <linux/netfilter_ipv4/ipt_NATTYPE.h>
	#include <linux/atomic.h>		#include <linux/atomic.h>

	#if !defined(NATTYPE_DEBUG)
	#define DEBUGP(type, args...)
	#else
	static const char * const types[] = {"TYPE_PORT_ADDRESS_RESTRICTED",		static const char * const types[] = {"TYPE_PORT_ADDRESS_RESTRICTED",
	"TYPE_ENDPOINT_INDEPENDENT",		"TYPE_ENDPOINT_INDEPENDENT",
	"TYPE_ADDRESS_RESTRICTED"};		"TYPE_ADDRESS_RESTRICTED"};
	static const char * const modes[] = {"MODE_DNAT", "MODE_FORWARD_IN",		static const char * const modes[] = {"MODE_DNAT", "MODE_FORWARD_IN",
	"MODE_FORWARD_OUT"};		"MODE_FORWARD_OUT"};
	#define DEBUGP(args...) pr_debug(args)		#define DEBUGP(args...) pr_debug(args)
	#endif

	/* netfilter NATTYPE TODO:		/* netfilter NATTYPE TODO:
	* Add magic value checks to data structure.		* Add magic value checks to data structure.
	@@ -58,14 +55,17 @@ static const char * const modes[] = {"MODE_DNAT", "MODE_FORWARD_IN",
	struct ipt_nattype {		struct ipt_nattype {
	struct list_head list;		struct list_head list;
	struct timer_list timeout;		struct timer_list timeout;
	unsigned char is_valid;		unsigned long timeout_value;
			unsigned int nattype_cookie;
	unsigned short proto; /* Protocol: TCP or UDP */		unsigned short proto; /* Protocol: TCP or UDP */
	struct nf_nat_ipv4_range range; /* LAN side src info*/		struct nf_nat_range range; /* LAN side source information */
	unsigned short nat_port; /* Routed NAT port */		unsigned short nat_port; /* Routed NAT port */
	unsigned int dest_addr; /* Original egress packets dst addr */		unsigned int dest_addr; /* Original egress packets dst addr */
	unsigned short dest_port;/* Original egress packets destination port */		unsigned short dest_port;/* Original egress packets destination port */
	};		};

			#define NATTYPE_COOKIE 0x11abcdef

	/* TODO: It might be better to use a hash table for performance in		/* TODO: It might be better to use a hash table for performance in
	* heavy traffic.		* heavy traffic.
	*/		*/
	@@ -78,11 +78,13 @@ static DEFINE_SPINLOCK(nattype_lock);
	static void nattype_nte_debug_print(const struct ipt_nattype *nte,		static void nattype_nte_debug_print(const struct ipt_nattype *nte,
	const char *s)		const char *s)
	{		{
	DEBUGP("%p: %s - proto[%d], src[%pI4:%d], nat[<x>:%d], dest[%pI4:%d]\n",		DEBUGP("%p:%s-proto[%d],src[%pI4:%d],nat[%d],dest[%pI4:%d]\n",
	nte, s, nte->proto,		nte, s, nte->proto,
	&nte->range.min_ip, ntohs(nte->range.min.all),		&nte->range.min_addr.ip, ntohs(nte->range.min_proto.all),
	ntohs(nte->nat_port),		ntohs(nte->nat_port),
	&nte->dest_addr, ntohs(nte->dest_port));		&nte->dest_addr, ntohs(nte->dest_port));
			DEBUGP("Timeout[%lx], Expires[%lx]\n", nte->timeout_value,
			nte->timeout.expires);
	}		}

	/* netfilter NATTYPE nattype_free()		/* netfilter NATTYPE nattype_free()
	@@ -90,28 +92,28 @@ static void nattype_nte_debug_print(const struct ipt_nattype *nte,
	*/		*/
	static void nattype_free(struct ipt_nattype *nte)		static void nattype_free(struct ipt_nattype *nte)
	{		{
	nattype_nte_debug_print(nte, "free");
	kfree(nte);		kfree(nte);
	}		}

	/* netfilter NATTYPE nattype_refresh_timer()		/* netfilter NATTYPE nattype_refresh_timer()
	* Refresh the timer for this object.		* Refresh the timer for this object.
	*/		*/
	bool nattype_refresh_timer_impl(unsigned long nat_type)		bool nattype_refresh_timer(unsigned long nat_type, unsigned long timeout_value)
	{		{
	struct ipt_nattype nte = (struct ipt_nattype )nat_type;		struct ipt_nattype nte = (struct ipt_nattype )nat_type;

	if (!nte)		if (!nte)
	return false;		return false;
	spin_lock_bh(&nattype_lock);		spin_lock_bh(&nattype_lock);
	if (!nte->is_valid) {		if (nte->nattype_cookie != NATTYPE_COOKIE) {
	spin_unlock_bh(&nattype_lock);		spin_unlock_bh(&nattype_lock);
	return false;		return false;
	}		}
	if (del_timer(&nte->timeout)) {		if (del_timer(&nte->timeout)) {
	nte->timeout.expires = jiffies + NATTYPE_TIMEOUT * HZ;		nte->timeout.expires = timeout_value;
	add_timer(&nte->timeout);		add_timer(&nte->timeout);
	spin_unlock_bh(&nattype_lock);		spin_unlock_bh(&nattype_lock);
			nattype_nte_debug_print(nte, "refresh");
	return true;		return true;
	}		}
	spin_unlock_bh(&nattype_lock);		spin_unlock_bh(&nattype_lock);
	@@ -213,7 +215,8 @@ static bool nattype_packet_in_match(const struct ipt_nattype *nte,
	/* netfilter NATTYPE nattype_compare		/* netfilter NATTYPE nattype_compare
	* Compare two entries, return true if relevant fields are the same.		* Compare two entries, return true if relevant fields are the same.
	*/		*/
	static bool nattype_compare(struct ipt_nattype n1, struct ipt_nattype n2)		static bool nattype_compare(struct ipt_nattype n1, struct ipt_nattype n2,
			const struct ipt_nattype_info *info)
	{		{
	/* netfilter NATTYPE Protocol		/* netfilter NATTYPE Protocol
	* compare.		* compare.
	@@ -228,16 +231,16 @@ static bool nattype_compare(struct ipt_nattype n1, struct ipt_nattype n2)
	* Since we always keep min/max values the same,		* Since we always keep min/max values the same,
	* just compare the min values.		* just compare the min values.
	*/		*/
	if (n1->range.min_ip != n2->range.min_ip) {		if (n1->range.min_addr.ip != n2->range.min_addr.ip) {
	DEBUGP("nattype_compare: r.min_ip mismatch: %pI4:%pI4\n",		DEBUGP("nattype_compare: r.min_addr.ip mismatch: %pI4:%pI4\n",
	&n1->range.min_ip, &n2->range.min_ip);		&n1->range.min_addr.ip, &n2->range.min_addr.ip);
	return false;		return false;
	}		}

	if (n1->range.min.all != n2->range.min.all) {		if (n1->range.min_proto.all != n2->range.min_proto.all) {
	DEBUGP("nattype_compare: r.min mismatch: %d:%d\n",		DEBUGP("nattype_compare: r.min mismatch: %d:%d\n",
	ntohs(n1->range.min.all),		ntohs(n1->range.min_proto.all),
	ntohs(n2->range.min.all));		ntohs(n2->range.min_proto.all));
	return false;		return false;
	}		}

	@@ -250,20 +253,16 @@ static bool nattype_compare(struct ipt_nattype n1, struct ipt_nattype n2)
	return false;		return false;
	}		}

	/* netfilter NATTYPE		/* netfilter NATTYPE Destination compare
	* Destination compare		* Destination Comapre for Address Restricted Cone NAT.
	*/		*/
	if (n1->dest_addr != n2->dest_addr) {		if ((info->type == TYPE_ADDRESS_RESTRICTED) &&
			(n1->dest_addr != n2->dest_addr)) {
	DEBUGP("nattype_compare: dest_addr mismatch: %pI4:%pI4\n",		DEBUGP("nattype_compare: dest_addr mismatch: %pI4:%pI4\n",
	&n1->dest_addr, &n2->dest_addr);		&n1->dest_addr, &n2->dest_addr);
	return false;		return false;
	}		}

	if (n1->dest_port != n2->dest_port) {
	DEBUGP("nattype_compare: dest_port mismatch: %d:%d\n",
	ntohs(n1->dest_port), ntohs(n2->dest_port));
	return false;
	}
	return true;		return true;
	}		}

	@@ -283,7 +282,7 @@ static unsigned int nattype_nat(struct sk_buff *skb,
	list_for_each_entry(nte, &nattype_list, list) {		list_for_each_entry(nte, &nattype_list, list) {
	struct nf_conn *ct;		struct nf_conn *ct;
	enum ip_conntrack_info ctinfo;		enum ip_conntrack_info ctinfo;
	struct nf_nat_ipv4_range newrange;		struct nf_nat_range newrange;
	unsigned int ret;		unsigned int ret;

	if (!nattype_packet_in_match(nte, skb, par->targinfo))		if (!nattype_packet_in_match(nte, skb, par->targinfo))
	@@ -304,11 +303,21 @@ static unsigned int nattype_nat(struct sk_buff *skb,
	return XT_CONTINUE;		return XT_CONTINUE;
	}		}

	/* Expand the ingress conntrack		/* netfilter
	* to include the reply as source		* Refresh the timer, if we fail, break
			* out and forward fail as though we never
			* found the entry.
			*/
			if (!nattype_refresh_timer((unsigned long)nte,
			jiffies + nte->timeout_value))
			break;

			/* netfilter
			* Expand the ingress conntrack to include the reply as source
	*/		*/
	DEBUGP("Expand ingress conntrack=%p, type=%d, src[%pI4:%d]\n",		DEBUGP("Expand ingress conntrack=%p, type=%d, src[%pI4:%d]\n",
	ct, ctinfo, &newrange.min_ip, ntohs(newrange.min.all));		ct, ctinfo, &newrange.min_addr.ip,
			ntohs(newrange.min_proto.all));
	ct->nattype_entry = (unsigned long)nte;		ct->nattype_entry = (unsigned long)nte;
	ret = nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_DST);		ret = nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_DST);
	DEBUGP("Expand returned: %d\n", ret);		DEBUGP("Expand returned: %d\n", ret);
	@@ -332,12 +341,22 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	enum ip_conntrack_info ctinfo;		enum ip_conntrack_info ctinfo;
	const struct ipt_nattype_info *info = par->targinfo;		const struct ipt_nattype_info *info = par->targinfo;
	u16 nat_port;		u16 nat_port;
			enum ip_conntrack_dir dir;

	if (par->hooknum != NF_INET_FORWARD)
			if (par->hooknum != NF_INET_POST_ROUTING)
			return XT_CONTINUE;

			/* netfilter
			* Egress packet, create a new rule in our list. If conntrack does
			* not have an entry, skip this packet.
			*/
			ct = nf_ct_get(skb, &ctinfo);
			if (!ct)
	return XT_CONTINUE;		return XT_CONTINUE;

	/* Ingress packet,		/* netfilter
	* refresh the timer if we find an entry.		* Ingress packet, refresh the timer if we find an entry.
	*/		*/
	if (info->mode == MODE_FORWARD_IN) {		if (info->mode == MODE_FORWARD_IN) {
	spin_lock_bh(&nattype_lock);		spin_lock_bh(&nattype_lock);
	@@ -355,7 +374,8 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	* out and forward fail as though we never		* out and forward fail as though we never
	* found the entry.		* found the entry.
	*/		*/
	if (!nattype_refresh_timer((unsigned long)nte))		if (!nattype_refresh_timer((unsigned long)nte,
			ct->timeout.expires))
	break;		break;

	/* netfilter NATTYPE		/* netfilter NATTYPE
	@@ -372,15 +392,9 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	return XT_CONTINUE;		return XT_CONTINUE;
	}		}

	/* netfilter NATTYPE		dir = CTINFO2DIR(ctinfo);
	* Egress packet, create a new rule in our list. If conntrack does
	* not have an entry, skip this packet.
	*/
	ct = nf_ct_get(skb, &ctinfo);
	if (!ct \|\| (ctinfo == IP_CT_NEW && ctinfo == IP_CT_RELATED))
	return XT_CONTINUE;

	nat_port = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.all;		nat_port = ct->tuplehash[!dir].tuple.dst.u.all;

	/* netfilter NATTYPE		/* netfilter NATTYPE
	* Allocate a new entry		* Allocate a new entry
	@@ -396,20 +410,22 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	nte->proto = iph->protocol;		nte->proto = iph->protocol;
	nte->nat_port = nat_port;		nte->nat_port = nat_port;
	nte->dest_addr = iph->daddr;		nte->dest_addr = iph->daddr;
	nte->range.min_ip = iph->saddr;		nte->range.min_addr.ip = iph->saddr;
	nte->range.max_ip = nte->range.min_ip;		nte->range.max_addr.ip = nte->range.min_addr.ip;

	/* netfilter NATTYPE		/* netfilter NATTYPE
	* TOOD: Would it be better to get this information from the		* TOOD: Would it be better to get this information from the
	* conntrack instead of the headers.		* conntrack instead of the headers.
	*/		*/
	if (iph->protocol == IPPROTO_TCP) {		if (iph->protocol == IPPROTO_TCP) {
	nte->range.min.tcp.port = ((struct tcphdr *)protoh)->source;		nte->range.min_proto.tcp.port =
	nte->range.max.tcp.port = nte->range.min.tcp.port;		((struct tcphdr *)protoh)->source;
			nte->range.max_proto.tcp.port = nte->range.min_proto.tcp.port;
	nte->dest_port = ((struct tcphdr *)protoh)->dest;		nte->dest_port = ((struct tcphdr *)protoh)->dest;
	} else if (iph->protocol == IPPROTO_UDP) {		} else if (iph->protocol == IPPROTO_UDP) {
	nte->range.min.udp.port = ((struct udphdr *)protoh)->source;		nte->range.min_proto.udp.port =
	nte->range.max.udp.port = nte->range.min.udp.port;		((struct udphdr *)protoh)->source;
			nte->range.max_proto.udp.port = nte->range.min_proto.udp.port;
	nte->dest_port = ((struct udphdr *)protoh)->dest;		nte->dest_port = ((struct udphdr *)protoh)->dest;
	}		}
	nte->range.flags = (NF_NAT_RANGE_MAP_IPS \|		nte->range.flags = (NF_NAT_RANGE_MAP_IPS \|
	@@ -430,7 +446,7 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	*/		*/
	spin_lock_bh(&nattype_lock);		spin_lock_bh(&nattype_lock);
	list_for_each_entry(nte2, &nattype_list, list) {		list_for_each_entry(nte2, &nattype_list, list) {
	if (!nattype_compare(nte, nte2))		if (!nattype_compare(nte, nte2, info))
	continue;		continue;
	spin_unlock_bh(&nattype_lock);		spin_unlock_bh(&nattype_lock);
	/* netfilter NATTYPE		/* netfilter NATTYPE
	@@ -438,7 +454,9 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	* entry as this one is timed out and will be removed		* entry as this one is timed out and will be removed
	* from the list shortly.		* from the list shortly.
	*/		*/
	if (!nattype_refresh_timer((unsigned long)nte2))		if (!nattype_refresh_timer(
			(unsigned long)nte2,
			jiffies + nte2->timeout_value))
	break;		break;

	/* netfilter NATTYPE		/* netfilter NATTYPE
	@@ -455,11 +473,12 @@ static unsigned int nattype_forward(struct sk_buff *skb,
	/* netfilter NATTYPE		/* netfilter NATTYPE
	* Add the new entry to the list.		* Add the new entry to the list.
	*/		*/
	nte->timeout.expires = jiffies + (NATTYPE_TIMEOUT * HZ);		nte->timeout_value = ct->timeout.expires;
			nte->timeout.expires = ct->timeout.expires + jiffies;
	add_timer(&nte->timeout);		add_timer(&nte->timeout);
	list_add(&nte->list, &nattype_list);		list_add(&nte->list, &nattype_list);
	ct->nattype_entry = (unsigned long)nte;		ct->nattype_entry = (unsigned long)nte;
	nte->is_valid = 1;		nte->nattype_cookie = NATTYPE_COOKIE;
	spin_unlock_bh(&nattype_lock);		spin_unlock_bh(&nattype_lock);
	nattype_nte_debug_print(nte, "ADD");		nattype_nte_debug_print(nte, "ADD");
	return XT_CONTINUE;		return XT_CONTINUE;
	@@ -549,7 +568,7 @@ static int nattype_check(const struct xt_tgchk_param *par)
	types[info->type], modes[info->mode]);		types[info->type], modes[info->mode]);

	if (par->hook_mask & ~((1 << NF_INET_PRE_ROUTING) \|		if (par->hook_mask & ~((1 << NF_INET_PRE_ROUTING) \|
	(1 << NF_INET_FORWARD))) {		(1 << NF_INET_POST_ROUTING))) {
	DEBUGP("nattype_check: bad hooks %x.\n", par->hook_mask);		DEBUGP("nattype_check: bad hooks %x.\n", par->hook_mask);
	return -EINVAL;		return -EINVAL;
	}		}
	@@ -590,7 +609,7 @@ static struct xt_target nattype = {
	.checkentry = nattype_check,		.checkentry = nattype_check,
	.targetsize = sizeof(struct ipt_nattype_info),		.targetsize = sizeof(struct ipt_nattype_info),
	.hooks = ((1 << NF_INET_PRE_ROUTING) \|		.hooks = ((1 << NF_INET_PRE_ROUTING) \|
	(1 << NF_INET_FORWARD)),		(1 << NF_INET_POST_ROUTING)),
	.me = THIS_MODULE,		.me = THIS_MODULE,
	};		};

net/ipv4/netfilter/nf_nat_masquerade_ipv4.c

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -68,7 +68,13 @@ nf_nat_masquerade_ipv4(struct sk_buff *skb, unsigned int hooknum,
	newrange.max_proto = range->max_proto;		newrange.max_proto = range->max_proto;

	/* Hand modified range to generic setup. */		/* Hand modified range to generic setup. */
			#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)
			nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_SRC);
			return XT_CONTINUE;
			#else
	return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_SRC);		return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_SRC);
			#endif

	}		}
	EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv4);		EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv4);

net/netfilter/nf_conntrack_core.c

+11 −3

Original line number	Original line	Diff line number	Diff line
	@@ -72,7 +72,10 @@ EXPORT_SYMBOL_GPL(nf_conntrack_expect_lock);
	struct hlist_nulls_head *nf_conntrack_hash __read_mostly;		struct hlist_nulls_head *nf_conntrack_hash __read_mostly;
	EXPORT_SYMBOL_GPL(nf_conntrack_hash);		EXPORT_SYMBOL_GPL(nf_conntrack_hash);

	bool (*nattype_refresh_timer)(unsigned long nattype) __rcu __read_mostly;		bool (*nattype_refresh_timer)
			(unsigned long nattype,
			unsigned long timeout_value)
			__rcu __read_mostly;
	EXPORT_SYMBOL(nattype_refresh_timer);		EXPORT_SYMBOL(nattype_refresh_timer);

	struct conntrack_gc_work {		struct conntrack_gc_work {
	@@ -1110,6 +1113,9 @@ __nf_conntrack_alloc(struct net *net,

	nf_ct_zone_add(ct, zone);		nf_ct_zone_add(ct, zone);

			#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)
			ct->nattype_entry = 0;
			#endif
	/* Because we use RCU lookups, we set ct_general.use to zero before		/* Because we use RCU lookups, we set ct_general.use to zero before
	* this is inserted in any list.		* this is inserted in any list.
	*/		*/
	@@ -1482,7 +1488,9 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
	struct nf_conn_acct *acct;		struct nf_conn_acct *acct;
	u64 pkts;		u64 pkts;
	#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)		#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)
	bool (*nattype_ref_timer)(unsigned long nattype);		bool (*nattype_ref_timer)
			(unsigned long nattype,
			unsigned long timeout_value);
	#endif		#endif

	NF_CT_ASSERT(skb);		NF_CT_ASSERT(skb);
	@@ -1500,7 +1508,7 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
	#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)		#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)
	nattype_ref_timer = rcu_dereference(nattype_refresh_timer);		nattype_ref_timer = rcu_dereference(nattype_refresh_timer);
	if (nattype_ref_timer)		if (nattype_ref_timer)
	nattype_ref_timer(ct->nattype_entry);		nattype_ref_timer(ct->nattype_entry, ct->timeout.expires);
	#endif		#endif

	acct:		acct:

net/netfilter/nf_conntrack_netlink.c

+11 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1540,12 +1540,23 @@ static int ctnetlink_change_timeout(struct nf_conn *ct,
	const struct nlattr * const cda[])		const struct nlattr * const cda[])
	{		{
	u_int32_t timeout = ntohl(nla_get_be32(cda[CTA_TIMEOUT]));		u_int32_t timeout = ntohl(nla_get_be32(cda[CTA_TIMEOUT]));
			#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)
			bool (*nattype_ref_timer)
			(unsigned long nattype,
			unsigned long timeout_value);
			#endif

	ct->timeout = nfct_time_stamp + timeout * HZ;		ct->timeout = nfct_time_stamp + timeout * HZ;

	if (test_bit(IPS_DYING_BIT, &ct->status))		if (test_bit(IPS_DYING_BIT, &ct->status))
	return -ETIME;		return -ETIME;

			/* Refresh the NAT type entry. */
			#if defined(CONFIG_IP_NF_TARGET_NATTYPE_MODULE)
			nattype_ref_timer = rcu_dereference(nattype_refresh_timer);
			if (nattype_ref_timer)
			nattype_ref_timer(ct->nattype_entry, ct->timeout.expires);
			#endif
	return 0;		return 0;
	}		}