[NETFILTER]: merge ipt_owner/ip6t_owner in xt_owner

xt_owner merges ipt_owner and ip6t_owner, and adds a flag to match
on socket (non-)existence.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 693f861..4bc0552 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -554,6 +554,14 @@
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config NETFILTER_XT_MATCH_OWNER
+	tristate '"owner" match support'
+	depends on NETFILTER_XTABLES
+	---help---
+	Socket owner matching allows you to match locally-generated packets
+	based on who created the socket: the user or group. It is also
+	possible to check whether a socket actually exists.
+
 config NETFILTER_XT_MATCH_POLICY
 	tristate 'IPsec "policy" match support'
 	depends on NETFILTER_XTABLES && XFRM