Re: Bug in giop_recv_buffer_unuse()? BiDir GIOP related?

[Jules Colding <colding omesc com>]

On Wed, 2005-12-14 at 14:27 +0100, Jules Colding wrote:
> Hi,
> 
> On Wed, 2005-12-14 at 14:05 +0100, Jules Colding wrote:
> > I have opened the port on which the communication is happening (tcp/951)
> > and enabled BiDir GIOP in the server app. The server answer to the test
> > client should therefore happen on port 951 as well.
> > 
> > I can see in my firewall logs that a request is indeed coming on the
> > right port, but the client unconditionally fails in
> > giop_recv_buffer_unuse() with memory corruption before receiving any
> > answer.
> 
> Not entirely true. I got this log from the firewall:
> 
> # tcpdump -n -e -ttt -i pflog0
> tcpdump: WARNING: pflog0: no IPv4 address assigned
> tcpdump: listening on pflog0
> Dec 14 13:35:21.564142 rule 10/0(match): pass in on fxp0: 80.62.76.190.54808 > 10.0.3.4.951: S 4139262222:4139262222(0) win 5840 <mss 1460,sackOK,timestamp[|tcp]> (DF)
> Dec 14 13:35:21.564952 rule 10/0(match): pass out on fxp0: 80.163.83.94.951 > 80.62.76.190.54808: S 3105447711:3105447711(0) ack 4139262223 win 64240 <mss 1460,nop,wscale 0,[|tcp]> (DF)
> Dec 14 13:35:21.594544 rule 10/0(match): pass in on fxp0: 80.62.76.190.54808 > 10.0.3.4.951: . ack 3105447712 win 1460 <nop,nop,timestamp 4733229[|tcp]> (DF)
> Dec 14 13:35:21.596702 rule 10/0(match): pass out on fxp0: 80.163.83.94.951 > 80.62.76.190.54808: . ack 1 win 64240 <nop,nop,timestamp 4275059[|tcp]> (DF)
> Dec 14 13:35:21.607406 rule 10/0(match): pass in on fxp0: 80.62.76.190.54808 > 10.0.3.4.951: P 0:556(556) ack 1 win 1460 <nop,nop,timestamp 4733229[|tcp]> (DF)
> Dec 14 13:35:21.609692 rule 10/0(match): pass out on fxp0: 80.163.83.94.951 > 80.62.76.190.54808: P 1:193(192) ack 557 win 65535 <nop,nop,timestamp 4275060[|tcp]> (DF)
> Dec 14 13:35:21.632247 rule 10/0(match): pass in on fxp0: 80.62.76.190.54808 > 10.0.3.4.951: . ack 193 win 1728 <nop,nop,timestamp 4733238[|tcp]> (DF)
> Dec 14 13:35:21.634311 rule 10/0(match): pass in on fxp0: 80.62.76.190.54808 > 10.0.3.4.951: F 556:556(0) ack 193 win 1728 <nop,nop,timestamp 4733239[|tcp]> (DF)
> Dec 14 13:35:21.634708 rule 10/0(match): pass out on fxp0: 80.163.83.94.951 > 80.62.76.190.54808: . ack 558 win 65535 <nop,nop,timestamp 4275060[|tcp]> (DF)
> Dec 14 13:35:21.634943 rule 10/0(match): pass out on fxp0: 80.163.83.94.951 > 80.62.76.190.54808: F 193:193(0) ack 558 win 65535 <nop,nop,timestamp 4275060[|tcp]> (DF)
> Dec 14 13:35:21.713648 rule 10/0(match): pass in on fxp0: 80.62.76.190.54808 > 10.0.3.4.951: . ack 194 win 1728 <nop,nop,timestamp 4733244[|tcp]> (DF)
> 
> The test client is 80.62.76.190, the server is 10.0.3.4 and the
> communication seems to be happening in a BiDir GIOP conforming way.

BTW, the firewall is 80.163.83.94 and it is doing NAT.

-- 
  jules