[Freeswitch-users] FS-9113, still experiencing TLS crashes

[Emrah]

Stan, we were able to reproduce the issue. You even commented on the jira about it. I went MIA after using the fix provided by Ethan so we never really got to the bottom of it. 
Could you please share the snapshot of that machine with me? We should take that environment as the base and try the same environment updated to the latest unstable also.

Best,
Emrah
> On Nov 12, 2016, at 10:45 PM, Stanislav Sinyagin <ssinyagin at gmail.com> wrote:
> 
> We actually built a test server, but weren't able to reproduce the issue.
> I can bring it up again if needed.
> 
> 
> On 10 Nov 2016 20:25, "Emrah" <lists at kavun.ch <mailto:lists at kavun.ch>> wrote:
> I agree, as long as I get to reproduce it that way. I am suspecting everything here. From the keysize to the CA to the TCP transport getting compromised to openssl not reliably transmitting certain packets to FS.
> 
> Thanks for the suggestion
>> On Nov 10, 2016, at 5:58 PM, Alejandro Recarey <ar at cyberfonica.com <mailto:ar at cyberfonica.com>> wrote:
>> 
>> You could either use a self-signed cert for a nonexistent domain (example.com <http://example.com/>?) and modify your hosts file or DNS to point to he server. I think that should give you an environment to reproduce the crash which you could share without leaking your private cert.
>> 
>> 
>> On 9 Nov 2016, at 20:28, Emrah <lists at kavun.ch <mailto:lists at kavun.ch>> wrote:
>> 
>>> It's the "reliably" part that's tricky. 
>>> I'm using commercial certificates, so let me figure out how to replicate a similar environment. I'll email you the info once I have a setup, and you can circulate where needed.
>>> 
>>> Thanks for helping on this
>>>> On Nov 9, 2016, at 4:25 PM, Michael Jerris <mike at jerris.com <mailto:mike at jerris.com>> wrote:
>>>> 
>>>> I need a recipie to reliably reproduce this so I can dig in the code.  Is there a way you can put together an environment where this can be reproduced on demand?
>>>> 
>>>>> On Nov 9, 2016, at 3:39 AM, Emrah <lists at kavun.ch <mailto:lists at kavun.ch>> wrote:
>>>>> 
>>>>> No Sir, the response packet to the 407 Proxy Authentication Required is never received. So the session then eventually gets abandoned by FS. On the client side, and this is generalized, the packet is sent, except the TLS session breaks.
>>>>> 
>>>>>> On Nov 8, 2016, at 11:41 PM, Michael Jerris <mike at jerris.com <mailto:mike at jerris.com>> wrote:
>>>>>> 
>>>>>> Can you confirm if the packet is shown in freeswitch tport_log?
>>>>>> 
>>>>>>> On Nov 8, 2016, at 5:02 PM, Emrah <lists at kavun.ch <mailto:lists at kavun.ch>> wrote:
>>>>>>> 
>>>>>>> Hello List,
>>>>>>> Thanks to the help provided by Stanislav, I learned of issue #9113, https://freeswitch.org/jira/si/jira.issueviews:issue-html/FS-9113/FS-9113.html <https://freeswitch.org/jira/si/jira.issueviews:issue-html/FS-9113/FS-9113.html>, which seems to be related to the issues I have been experiencing with FreeSWITCH, TLS and failed call setups.
>>>>>>> Coincidentally, or not, the fix pushed on that issue was aligned with whole months where I did not experience any TLS issues. Calls were going through fine, until all of a sudden they started failing again. This is on 2 distinct servers running a load balanced FS setup, and using Yealink phones.
>>>>>>> 
>>>>>>> To sum up, here is what is going on.
>>>>>>> From the Yealink, calls with TLS work if I don't use SRTP.
>>>>>>> From the Yealink, calls crash if I use TLS and SRTP.
>>>>>>> From my laptop softphone, calls only crash sometimes if I use TLS and SRTP.
>>>>>>> 
>>>>>>> How can I debug the TLS session on the FreeSWITCH side to see what happens with the TLS thread? I don't mean packet capture.
>>>>>>> 
>>>>>>> I have a feeling that the packet size is too large and doesn't make it to the FS box intact after the 407 Proxy Required is received by the client.
>>>>>>> 
>>>>>>> Here is the log for the Yealink:
>>>>>>> http://pastebin.com/smKP286x <http://pastebin.com/smKP286x>
>>>>>>> 
>>>>>>> Your lights would be so appreciated, I'm losing my mind over this.
>>>>>> 
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> 
> _________________________________________________________________________
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