netfilter: x_tables: added hook number into match extension parameter structure.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>

include/linux/netfilter/x_tables.h

@@ -184,9 +184,10 @@ struct xt_counters_info
  * @matchinfo:	per-match data
  * @fragoff:	packet is a fragment, this is the data offset
  * @thoff:	position of transport header relative to skb->data
- * @hotdrop:	drop packet if we had inspection problems
+ * @hook:	hook number given packet came from
  * @family:	Actual NFPROTO_* through which the function is invoked
  * 		(helpful when match->family == NFPROTO_UNSPEC)
+ * @hotdrop:	drop packet if we had inspection problems
  */
 struct xt_match_param {
 	const struct net_device *in, *out;
@@ -194,8 +195,9 @@ struct xt_match_param {
 	const void *matchinfo;
 	int fragoff;
 	unsigned int thoff;
-	bool *hotdrop;
+	unsigned int hooknum;
 	u_int8_t family;
+	bool *hotdrop;
 };
 
 /**

net/bridge/netfilter/ebtables.c

@@ -170,7 +170,7 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.hotdrop = &hotdrop;
-	tgpar.hooknum = hook;
+	mtpar.hooknum = tgpar.hooknum = hook;
 
 	read_lock_bh(&table->lock);
 	private = table->private;

net/ipv4/netfilter/ip_tables.c

@@ -343,7 +343,7 @@ ipt_do_table(struct sk_buff *skb,
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.family  = tgpar.family = NFPROTO_IPV4;
-	tgpar.hooknum = hook;
+	mtpar.hooknum = tgpar.hooknum = hook;
 
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));
 	xt_info_rdlock_bh();

net/ipv6/netfilter/ip6_tables.c

@@ -369,7 +369,7 @@ ip6t_do_table(struct sk_buff *skb,
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.family  = tgpar.family = NFPROTO_IPV6;
-	tgpar.hooknum = hook;
+	mtpar.hooknum = tgpar.hooknum = hook;
 
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));