<div dir="ltr"><div><div>Yeah I can usually get it to happen within about 5 minutes or so of testing. Still getting all setup to build freeswitch in this environment, but I should have it working by tomorrow. I will try more w/o dtls/srtp as well and make sure it does not need to be on.<br><br></div>Thanks<br></div>Luke<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 11, 2017 at 4:20 PM, Michael Jerris <span dir="ltr"><<a href="mailto:mike@jerris.com" target="_blank">mike@jerris.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">if you can reproduce this reliably, i’d try master as well. Unless this is a bug in openssl, i can’t imagine how dtls would come into play in something like this.<br>
<span class=""><br>
> On May 11, 2017, at 5:48 PM, Luke Wahlmeier <<a href="mailto:lwahlmeier@gmail.com">lwahlmeier@gmail.com</a>> wrote:<br>
><br>
> I keep semi-regularly running into issues using the wss transport when using dtls/strp/ice. This is on the latest 1.6.17~34~0fc0946 on Debian jessie, but I am pretty sure it was happening on the last couple releases as well.<br>
><br>
> It seems like something bad/wrong happens to the encrypted data going over the websocket coming from freeswitch when more then 1 websocket connection are going and so far ice/srtp/dtls also seem to be needed in the invite to duplicate it.<br>
><br>
> I have tried many different languages and network/ssl stacks and keep running into this. It is always on data coming in from freeswitch on the websocket connection, and its very very random. Sometimes I will get it 20 times in a row, other times it takes thousands of connections/sessions before it happen. It also, obviously, completely goes away if I use plain ws instead wss.<br>
><br>
> Here are the errors:<br>
> python:<br>
> SSLError: [SSL: DECRYPTION_FAILED_OR_BAD_<wbr>RECORD_MAC] decryption failed or bad record mac (_ssl.c:1750)<br>
> c/c++ (stunnel4):<br>
> SSL_read: 1408F119: error:1408F119:SSL routines:SSL3_GET_RECORD:<wbr>decryption failed or bad record mac<br>
> Java:<br>
> java.lang.<wbr>IllegalArgumentException: Bad arguments<br>
> at javax.crypto.Mac.update(Mac.<wbr>java:509)<br>
> at sun.security.ssl.MAC.compute(<wbr>MAC.java:135)<br>
> at sun.security.ssl.InputRecord.<wbr>checkMacTags(InputRecord.java:<wbr>265)<br>
> at sun.security.ssl.InputRecord.<wbr>decrypt(InputRecord.java:216)<br>
> at sun.security.ssl.<wbr>EngineInputRecord.decrypt(<wbr>EngineInputRecord.java:177)<br>
> at sun.security.ssl.<wbr>SSLEngineImpl.readRecord(<wbr>SSLEngineImpl.java:974)<br>
> at sun.security.ssl.<wbr>SSLEngineImpl.readNetRecord(<wbr>SSLEngineImpl.java:907)<br>
> at sun.security.ssl.<wbr>SSLEngineImpl.unwrap(<wbr>SSLEngineImpl.java:781)<br>
> at javax.net.ssl.SSLEngine.<wbr>unwrap(SSLEngine.java:624)<br>
><br>
> Attached are a simple python script to do the load, my dialplan and sip_profile. The python script can take a few runs before it see the error, and I know its not completing the sip or rtp, but even if it does this still happens.<br>
><br>
> I have also looked at libsofia-sip-ua/tport/ws.c and I dont see anything obvious. I am getting setup to build v1.6 head and test this any guidance on ways I can trouble shoot this better or requests for more info are very welcome.<br>
><br>
<br>
<br>
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