Sure. I can look at this. Can you share a sample pcap file with the scenario you outlined. I can make changes to the code to work in your and my pcap scenario.
Vasu Sent from my iPhone > On Feb 1, 2014, at 11:42 AM, Ben Pfaff <b...@nicira.com> wrote: > > I see. Handling this case would require some extra code. It also > raises the question of how to detect the start of an OpenFlow message > within a TCP stream, since any given TCP segment might begin in the > middle of an OpenFlow message. One could ignore the problem, but then > there might be a lot of desynchronized garbage in the output stream. > > If you want to contribute a patch that works toward better handling > here, that would be nice. > >> On Sat, Feb 01, 2014 at 10:45:39AM -0500, Vasu Dasari wrote: >> No I do not have them. The pcap is an extract of OF packets alone. I am >> attaching the pcap I used here. >> >> -Vasu >> >> >>> On Sat, Feb 1, 2014 at 10:34 AM, Ben Pfaff <b...@nicira.com> wrote: >>> >>>> On Sat, Feb 01, 2014 at 08:46:27AM -0500, Vasu Dasari wrote: >>>> Thanks Ben. I was using 2.09. When I updated my git, I could see the >>>> command you suggested. But, unfortunately it was not working. >>>> >>>> vdasari@mininet:~$ ovs-ofctl ofp-parse-pcap of.pcap >>>> vdasari@mininet:~$ >>>> >>>> On digging through the code, I found that there could be an issue with >>>> tcp_reader_run() or tcp_stream_lookup() and seq_no. "stream->seq_no is >>>> always 0". Once I force the code to return the "payload" by not checking >>>> for seq_no,, from tcp_reader_run() function, I could see the right >>>> output.And this logic is working for me. Probably there is something you >>>> had thought of regarding sequence numbers which I might be overlooking. >>> >>> Does your pcap file include the start of the TCP connection (the SYN and >>> SYN/ACK packets)? I am not sure that I tested without that. > > _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
