| Message ID | 1415034651-27242-2-git-send-email-anarey@gmail.com |
|---|---|
| State | Accepted |
| Delegated to: | Pablo Neira |
| Headers | show |
On Mon, Nov 03, 2014 at 06:10:50PM +0100, Ana Rey wrote:
> This allows you to filter traffic by process control group (cgroup).
Applied to nf-next, thanks Ana.
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diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index c26df67..8ee8429 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -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: packet cgroup */ 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, }; /** diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c index 1e7c076..e99911e 100644 --- a/net/netfilter/nft_meta.c +++ b/net/netfilter/nft_meta.c @@ -165,6 +165,12 @@ void nft_meta_get_eval(const struct nft_expr *expr, goto err; dest->data[0] = out->group; break; + case NFT_META_CGROUP: + if (skb->sk == NULL) + break; + + dest->data[0] = skb->sk->sk_classid; + break; default: WARN_ON(1); goto err; @@ -240,6 +246,7 @@ int nft_meta_get_init(const struct nft_ctx *ctx, case NFT_META_CPU: case NFT_META_IIFGROUP: case NFT_META_OIFGROUP: + case NFT_META_CGROUP: break; default: return -EOPNOTSUPP;
This allows you to filter traffic by process control group (cgroup). Signed-off-by: Ana Rey <anarey@gmail.com> --- include/uapi/linux/netfilter/nf_tables.h | 2 ++ net/netfilter/nft_meta.c | 7 +++++++ 2 files changed, 9 insertions(+)