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From: Simon Horman <horms@verge.net.au>
To: Julian Anastasov <ja@ssi.bg>
Cc: Dan Carpenter <dan.carpenter@oracle.com>,
	Wensong Zhang <wensong@linux-vs.org>,
	Pablo Neira Ayuso <pablo@netfilter.org>,
	Patrick McHardy <kaber@trash.net>,
	"David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org, lvs-devel@vger.kernel.org,
	netfilter-devel@vger.kernel.org, netfilter@vger.kernel.org,
	coreteam@netfilter.org
Subject: Re: [patch] ipvs: off by one in set_sctp_state()
Date: Tue, 23 Apr 2013 11:22:43 +0900	[thread overview]
Message-ID: <20130423022243.GQ12017@verge.net.au> (raw)
In-Reply-To: <alpine.LFD.2.00.1304220843560.1626@ja.ssi.bg>

On Mon, Apr 22, 2013 at 09:03:28AM +0300, Julian Anastasov wrote:
> 
> 	Hello,
> 
> On Mon, 22 Apr 2013, Simon Horman wrote:
> 
> > > 	There are more confusing (still, non-fatal)
> > > problems in this IPVS-SCTP support, eg.
> > > 
> > >         if (direction == IP_VS_DIR_OUTPUT)
> > > -               event++;
> > > +               event *= 2;
> > > 
> > > 	I guess we are running with wrong timeouts.
> > 
> > IMHO there seem to be many problems with SCTP, but it is good to
> > fix the ones we find as we find them.
> 
> 	At the time I found it (during IPVS optimizations
> development), it didn't looked fatal, I preferred to
> allocate more time for SCTP for debugging.
> 
> > Would you like to make a patch for the above change or should I?
> 
> 	May be the code is correct, my mistake. I was
> confused from the order in sctp_events[] but ipvs_sctp_event_t
> allocates values for _SER states.

Thanks, it sounds like we should study things more carefully
before making any changes.

> > > 	Also, I'm not sure we support properly the
> > > one-way states as done for TCP (IP_VS_DIR_INPUT_ONLY).
> > > May be this code deserves more serious review, for example,
> > > net/netfilter/nf_conntrack_proto_sctp.c looks as good
> > > source for comparison.
> > 
> > I believe it does need a more serious review.
> 
> Regards
> 
> --
> Julian Anastasov <ja@ssi.bg>
> 

      parent reply	other threads:[~2013-04-23  2:22 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-20 11:24 [patch] ipvs: off by one in set_sctp_state() Dan Carpenter
2013-04-20 12:25 ` Julian Anastasov
2013-04-22  4:11   ` Simon Horman
2013-04-22  6:03     ` Julian Anastasov
2013-04-22  9:17       ` Moahn Reddy
2013-04-22  9:30         ` Dan Carpenter
2013-04-22  9:49           ` Moahn Reddy
2013-04-23  2:22       ` Simon Horman [this message]

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