[PATCH 2/3 libnftnl] expr: add conntrack label match support

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Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
 include/linux/netfilter/nf_tables.h | 2 ++
 src/expr/ct.c                       | 5 +++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/linux/netfilter/nf_tables.h b/include/linux/netfilter/nf_tables.h
index 31ddd06..5bb7b72 100644
--- a/include/linux/netfilter/nf_tables.h
+++ b/include/linux/netfilter/nf_tables.h
@@ -585,6 +585,7 @@ enum nft_meta_attributes {
  * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
  * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
  * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
+ * @NFT_CT_LABEL: conntrack label
  */
 enum nft_ct_keys {
 	NFT_CT_STATE,
@@ -600,6 +601,7 @@ enum nft_ct_keys {
 	NFT_CT_PROTOCOL,
 	NFT_CT_PROTO_SRC,
 	NFT_CT_PROTO_DST,
+	NFT_CT_LABEL,
 };
 
 /**
diff --git a/src/expr/ct.c b/src/expr/ct.c
index 2df761c..4c18dde 100644
--- a/src/expr/ct.c
+++ b/src/expr/ct.c
@@ -33,7 +33,7 @@ struct nft_expr_ct {
 #define IP_CT_DIR_REPLY		1
 
 #ifndef NFT_CT_MAX
-#define NFT_CT_MAX (NFT_CT_PROTO_DST + 1)
+#define NFT_CT_MAX (NFT_CT_LABEL + 1)
 #endif
 
 static int
@@ -170,7 +170,8 @@ const char *ctkey2str_array[NFT_CT_MAX] = {
 	[NFT_CT_SRC]		= "src",
 	[NFT_CT_DST]		= "dst",
 	[NFT_CT_PROTO_SRC]	= "proto_src",
-	[NFT_CT_PROTO_DST]	= "proto_dst"
+	[NFT_CT_PROTO_DST]	= "proto_dst",
+	[NFT_CT_LABEL]		= "label",
 };
 
 static const char *ctkey2str(uint32_t ctkey)
-- 
1.8.1.5

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