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netfilter: nf_tables: atomic dump and reset for stateful objects

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This patch adds a new NFT_MSG_GETOBJ_RESET command perform an atomic
dump-and-reset of the stateful object. This also comes with add support
for atomic dump and reset for counter and quota objects.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2016-11-28 00:05:44 +01:00
parent 795595f68d
commit 43da04a593
5 changed files with 85 additions and 23 deletions
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2
include/uapi/linux/netfilter/nf_tables.h
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@ -89,6 +89,7 @@ enum nft_verdicts {
* @NFT_MSG_NEWOBJ: create a stateful object (enum nft_obj_attributes)
* @NFT_MSG_GETOBJ: get a stateful object (enum nft_obj_attributes)
* @NFT_MSG_DELOBJ: delete a stateful object (enum nft_obj_attributes)
* @NFT_MSG_GETOBJ_RESET: get and reset a stateful object (enum nft_obj_attributes)
*/
enum nf_tables_msg_types {
NFT_MSG_NEWTABLE,
@ -112,6 +113,7 @@ enum nf_tables_msg_types {
NFT_MSG_NEWOBJ,
NFT_MSG_GETOBJ,
NFT_MSG_DELOBJ,
NFT_MSG_GETOBJ_RESET,
NFT_MSG_MAX,
};