From d8bcc768c80e73cf4e948cb327949174b4b5b9e7 Mon Sep 17 00:00:00 2001 From: Tomasz Bursztyka Date: Thu, 12 Dec 2013 15:00:42 +0200 Subject: netfilter: nf_tables: Expose the table usage counter via netlink Userspace can therefore know whether a table is in use or not, and by how many chains. Suggested by Pablo Neira Ayuso. Signed-off-by: Tomasz Bursztyka Signed-off-by: Pablo Neira Ayuso --- include/uapi/linux/netfilter/nf_tables.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index 256d36b1b94a..b25481e16f0a 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -110,11 +110,13 @@ enum nft_table_flags { * * @NFTA_TABLE_NAME: name of the table (NLA_STRING) * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32) + * @NFTA_TABLE_USE: number of chains in this table (NLA_U32) */ enum nft_table_attributes { NFTA_TABLE_UNSPEC, NFTA_TABLE_NAME, NFTA_TABLE_FLAGS, + NFTA_TABLE_USE, __NFTA_TABLE_MAX }; #define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1) -- cgit v1.2.3