netfilter: nft_meta: add cgroup support
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>
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Pablo Neira Ayuso

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c5a589cc30
commit
ce674173e9
@@ -579,6 +579,7 @@ enum nft_exthdr_attributes {
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* @NFT_META_CPU: cpu id through smp_processor_id()
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* @NFT_META_IIFGROUP: packet input interface group
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* @NFT_META_OIFGROUP: packet output interface group
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* @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
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*/
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enum nft_meta_keys {
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NFT_META_LEN,
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@@ -604,6 +605,7 @@ enum nft_meta_keys {
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NFT_META_CPU,
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NFT_META_IIFGROUP,
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NFT_META_OIFGROUP,
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NFT_META_CGROUP,
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};
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/**
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