Re: [PATCH net-next-2.6] net/ipv4: push IP options to CB inip_fragment

[David Miller]

From: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Date: Tue, 31 Aug 2010 07:20:31 +0200

> We could have a padding in front of struct br_input_skb_cb to make sure
> we dont overwrite IP (4|6) CB in bridge ?
> 
> Something like this untested patch :

This will not help Brandan's case.

His packets are coming straight from TUN/TAP.  They did not live in
the IP stack at all before hitting the bridge and then heading to
ip_fragment().

Therefore I'm inclined to agree with Herbert that we need to parse the
options explicitly before invoke ip_fragment().  We must call it with
an SKB in the state it expects, and that means with options parsing
already performed.


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