netdev - Re: [PATCH nf-next v2 2/2] netfilter: nft_meta: Add NFT_META_BRI

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Date:   Wed, 26 Jun 2019 12:29:35 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     wenxu@...oud.cn
Cc:     fw@...len.de, netfilter-devel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH nf-next v2 2/2] netfilter: nft_meta: Add
 NFT_META_BRI_VLAN support

Could you add a NFT_META_BRI_VLAN_PROTO? Similar to patch 1/2, to
retrieve p->br->vlan_proto.

Then, add a generic way to set the vlan metadata. I'm attaching an
incomplete patch, so there is something like:

        meta vlan set 0x88a8:20

to set q-in-q.

we could also add a shortcut for simple vlan case (no q-in-q), ie.
assuming protocol is 0x8100:

        meta vlan set 20

Does this make sense to you?

And we have a way to set the meta vlan information from ingress to
then, which is something I also need here.

Thanks.

View attachment "x.patch" of type "text/x-diff" (2342 bytes)