On 02/06/11 02:09, Simon Horman wrote:
> From: Julian Anastasov <ja@xxxxxx>
> Fix the IPVS priority in LOCAL_IN hook,
> so that SNAT target in POSTROUTING is supported for IPVS
> traffic as in 2.6.36 where it worked depending on
> module load order.
> Before 2.6.37 we used priority 100 in LOCAL_IN to
> process remote requests. We used the same priority as
> iptables SNAT and if IPVS handlers are installed before
> SNAT handlers we supported SNAT in POSTROUTING for the IPVS
> traffic. If SNAT is installed before IPVS, the netfilter
> handlers are before IPVS and netfilter checks the NAT
> table twice for the IPVS requests: once in LOCAL_IN where
> IPS_SRC_NAT_DONE is set and second time in POSTROUTING
> where the SNAT rules are ignored because IPS_SRC_NAT_DONE
> was already set in LOCAL_IN.
> But in 2.6.37 we changed the IPVS priority for
> LOCAL_IN with the goal to be unique (101) forgetting the
> fact that for IPVS traffic we should not walk both
> LOCAL_IN and POSTROUTING nat tables.
> So, change the priority for processing remote
> IPVS requests from 101 to 99, i.e. before NAT_SRC (100)
> because we prefer to support SNAT in POSTROUTING
> instead of LOCAL_IN. It also moves the priority for
> IPVS replies from 99 to 98. Use constants instead of
> magic numbers at these places.
I have applied this to my net-next-2.6 tree. Once it hits linus tree,
I'll pass it to -stable.
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