[NETFILTER]: Remove IPv4 only connection tracking/NAT

Remove the obsolete IPv4 only connection tracking/NAT as scheduled in
feature-removal-schedule.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 57 deletions

diff --git a/net/netfilter/xt_helper.c b/net/netfilter/xt_helper.c
index 407d1d5da8a1..bc70b26ba5b4 100644
--- a/net/netfilter/xt_helper.c
+++ b/net/netfilter/xt_helper.c
@@ -13,18 +13,11 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/netfilter.h>
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#else
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_core.h>
 #include <net/netfilter/nf_conntrack_helper.h>
-#endif
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/xt_helper.h>
-#include <net/netfilter/nf_conntrack_compat.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Martin Josefsson <gandalf@netfilter.org>");
@@ -38,55 +31,6 @@ MODULE_ALIAS("ip6t_helper");
 #define DEBUGP(format, args...)
 #endif
 
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-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 xt_helper_info *info = matchinfo;
-	struct ip_conntrack *ct;
-	enum ip_conntrack_info ctinfo;
-	int ret = info->invert;
-
-	ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
-	if (!ct) {
-		DEBUGP("xt_helper: Eek! invalid conntrack?\n");
-		return ret;
-	}
-
-	if (!ct->master) {
-		DEBUGP("xt_helper: conntrack %p has no master\n", ct);
-		return ret;
-	}
-
-	read_lock_bh(&ip_conntrack_lock);
-	if (!ct->master->helper) {
-		DEBUGP("xt_helper: master ct %p has no helper\n",
-			exp->expectant);
-		goto out_unlock;
-	}
-
-	DEBUGP("master's name = %s , info->name = %s\n",
-		ct->master->helper->name, info->name);
-
-	if (info->name[0] == '\0')
-		ret ^= 1;
-	else
-		ret ^= !strncmp(ct->master->helper->name, info->name,
-				strlen(ct->master->helper->name));
-out_unlock:
-	read_unlock_bh(&ip_conntrack_lock);
-	return ret;
-}
-
-#else /* CONFIG_IP_NF_CONNTRACK */
-
 static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
@@ -134,7 +78,6 @@ out_unlock:
 	read_unlock_bh(&nf_conntrack_lock);
 	return ret;
 }
-#endif
 
 static int check(const char *tablename,
 		 const void *inf,