netfilter: xt_CT: add alias flag

This patch adds the alias flag to support full NOTRACK target
aliasing.

Based on initial patch from Jozsef Kadlecsik.

Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hi>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/uapi/linux/netfilter/xt_CT.h b/include/uapi/linux/netfilter/xt_CT.h
index a064b8af360c..5a688c1ca4d7 100644
--- a/include/uapi/linux/netfilter/xt_CT.h
+++ b/include/uapi/linux/netfilter/xt_CT.h
@@ -3,7 +3,11 @@
 
 #include <linux/types.h>
 
-#define XT_CT_NOTRACK   0x1
+enum {
+        XT_CT_NOTRACK           = 1 << 0,
+        XT_CT_NOTRACK_ALIAS     = 1 << 1,
+        XT_CT_MASK              = XT_CT_NOTRACK | XT_CT_NOTRACK_ALIAS,
+};
 
 struct xt_ct_target_info {
         __u16 flags;