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Re: [PATCH] ipvs: sctp: fix checksumming on snat and dnat handlers

To: David Laight <David.Laight@xxxxxxxxxx>
Subject: Re: [PATCH] ipvs: sctp: fix checksumming on snat and dnat handlers
Cc: Simon Horman <horms@xxxxxxxxxxxx>, Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>, lvs-devel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, netfilter-devel@xxxxxxxxxxxxxxx, Wensong Zhang <wensong@xxxxxxxxxxxx>, Julian Anastasov <ja@xxxxxx>
From: Daniel Borkmann <dborkman@xxxxxxxxxx>
Date: Wed, 06 Feb 2013 12:20:57 +0100
On 02/06/2013 10:18 AM, David Laight wrote:
If the NAT code has only modified a few bytes inside one of the SCTP
chunks, then the crc can be modified by knowing the changed bits and
the number of bytes to the end of the chunk (without looking at
any other data bytes).
That would (probably) be faster (may not really matter for INIT-ACK.

If applicable, this could be a follow-up optimization after the bug fix.
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