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Hello,
On Tue, 6 Jan 2015, Marcelo Ricardo Leitner wrote:
> > I guess, we here try to avoid old sync message to
> > expire new connection. The problem is that UDP conns and
> > templates are always IP_VS_CONN_F_INACTIVE, may be a TCP+SCTP
> > protocol check is needed.
>
> Yes, that's the idea, avoiding the old sync messages. I don't think we need a
> check for protocol here because the outer if() (the one that checks daddr and
> dport) wouldn't happen for UDP, right? Unless it was really recycled.. But
> yeah I missed the template case. Perhaps we can just move this block together
> with the previous if(!).
OK, just make sure patch has short lines (80):
# scripts/checkpatch.pl --strict /tmp/file.patch
>
> if (!(flags & IP_VS_CONN_F_TEMPLATE)) {
> cp = ip_vs_conn_in_get(param);
> if (cp && ((cp->dport != dport) ||
> !ip_vs_addr_equal(cp->daf, &cp->daddr, daddr))) {
> if (!(flags & IP_VS_CONN_F_INACTIVE)) {
> ip_vs_conn_expire_now(cp);
> __ip_vs_conn_put(cp);
> cp = NULL;
> } else {
I assume we will not stop here sync for some connection that
was normally expired in master but was delayed in backup. TCP sync
starts for EST state, so I think it will hit the above case.
> /* This is the expiration message for the
> * connection that was already replaced, so we
> * just ignore it.
> */
> goto out;
> }
> }
> } else {
> cp = ip_vs_ct_in_get(param);
> }
Regards
--
Julian Anastasov <ja@xxxxxx>
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