netdev - eBPF equivalent of SKF_AD_HATYPE / skb->dev->type

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Message-ID: <CANP3RGcxAOY6mBBqFa26Cc4s3++T0QH1z+mcLFbPGdbxZXqTYQ@mail.gmail.com>
Date:   Thu, 24 Jan 2019 03:27:07 -0800
From:   Maciej Żenczykowski <zenczykowski@...il.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     Linux NetDev <netdev@...r.kernel.org>
Subject: eBPF equivalent of SKF_AD_HATYPE / skb->dev->type

In classic BPF 'SKF_AD_HATYPE' can be used to fetch skb->dev->type.

Are my eyes deceiving me, or is there a similar way to get at it from eBPF?

(while we're at it, skb->dev->mtu would probably be useful too)

Cheers,
Maciej