Re: [PATCH] icmp: Fixed bug in raw sockets causing incorrect ICMP SNMP counter values

From: Eric Dumazet
Date: Sun Oct 11 2015 - 19:38:18 EST


Please do not top-post on netdev and/or lkml


On Mon, 2015-10-12 at 00:14 +0100, Ben Cox wrote:
> Nice!
>
> That works in my head at least, Sorry about not seeing that fairly
> glaring memory issue there.

No problem, this is why we review patches ;)

>
> Are you sure " skb->transport_header += iphlen; " won't have a knock
> on affect when it's given to NF_HOOK ( as in, would a potential
> userspace program get something it does not expect anymore ) ?


netfilter does not depend on transport_header being set (otherwise as
you can see RAW packets would have problems with netfilter since the
very beginning.


> How does submission work at this point if the above is not a issue
> (apologies if this is already in a FAQ somewhere I missed)?
>

Just send a V2 of the patch, using following title :

[PATCH v2 net] raw: increment correct SNMP counters for ICMP messages


I'll add my 'Acked-by:' after your 'Signed-off-by:'

Thanks !


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