Hi Steffen,

I am working on a ticket complaining about netfilter policy match
missing packets in OUTPUT chain if XFRM interface is being used.

I don't fully overlook the relevant code path, but it seems like
skb_dest(skb)->xfrm is not yet assigned when the skb is routed towards
XFRM interface and already cleared again (by xfrm_output_one?) before it
makes its way towards the real output interface. NF_INET_POST_ROUTING
hook works though.

Is this a bug or an expected quirk when using XFRM interface?

Cheers, Phil

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