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netfilter: nft_meta: add cgroup support

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This allows you to filter traffic by process control group (cgroup).

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Ana Rey 2014-11-03 18:10:50 +01:00 • committed by Pablo Neira Ayuso
commit ce674173e9
2 changed files with 9 additions and 0 deletions
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2
include/uapi/linux/netfilter/nf_tables.h
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@ -579,6 +579,7 @@ enum nft_exthdr_attributes {
* @NFT_META_CPU: cpu id through smp_processor_id()
* @NFT_META_IIFGROUP: packet input interface group
* @NFT_META_OIFGROUP: packet output interface group
* @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
*/
enum nft_meta_keys {
NFT_META_LEN,
@ -604,6 +605,7 @@ enum nft_meta_keys {
NFT_META_CPU,
NFT_META_IIFGROUP,
NFT_META_OIFGROUP,
NFT_META_CGROUP,
};
/**