src: add support for chain ID attribute

his patch allows you to refer to chains via the chain ID. The semantics
are similar to the NFTA_RULE_ID attribute.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/data_reg.h b/include/data_reg.h
index 10517ba..d9578aa 100644
--- a/include/data_reg.h
+++ b/include/data_reg.h
@@ -21,6 +21,7 @@ union nftnl_data_reg {
 	struct {
 		uint32_t	verdict;
 		const char	*chain;
+		uint32_t	chain_id;
 	};
 };