Hi All, I operate OpenSIPs in front of a bank of FreeSWITCH instances and I'm currently seeing an issue with FreeSWITCH crashing during a SRTP DTLS renegotiation triggered by a RE-INVITE.
I've tracked this down to a WSS registrar which is issuing rtpengine_offer(...) for the INVITE and any subsequent RE-INVITE. This happens thousands of times a day without issue however on occasion OpenSIPs sends that RE-INVITE request to a different rtpengine server from the pool. This writes in the new RTP proxy IP and initiates a new ICE negotiation, the client fails to handle this and the DTLS negotiation breaks down - RTPEngine warns "*Received invalid STUN packet from 1.8.4.1:58184 <http://1.8.4.1:58184>: MESSAGE_INTEGRITY attribute missing*" and FreeSWITCH segfaults. Can anyone advise on what might be causing OpenSIPs to pick an unrelated RTP instance for the dialog? Any ideas for preventing that would be appreciated! I could conceivably save the socket after the initial offer against the dialog and use that for additional offers but hopefully that can be avoided. I use RTPEngine only as a proxy, perhaps I should simply prevent RE-INVITE's from sending additional offers so I only have one offer/answer/delete per call? Thanks, Callum -- *0333 332 0000 | x-on.co.uk <https://www.x-on.co.uk> | ** <https://www.linkedin.com/company/x-on> <https://www.facebook.com/XonTel> <https://twitter.com/xonuk> ** | **Practice Index Reviews <https://practiceindex.co.uk/gp/x-on>* *Our new office address: 22 Riduna Park, Melton IP12 1QT.* X-on is a trading name of Storacall Technology Ltd a limited company registered in England and Wales. Registered Office : Glebe Farm, Down Street, Dummer, Basingstoke, Hampshire, England RG25 2AD. Company Registration No. 2578478. The information in this e-mail is confidential and for use by the addressee(s) only. If you are not the intended recipient, please notify X-on immediately on +44(0)333 332 0000 and delete the message from your computer. If you are not a named addressee you must not use, disclose, disseminate, distribute, copy, print or reply to this email. Views or opinions expressed by an individual within this email may not necessarily reflect the views of X-on or its associated companies. Although X-on routinely screens for viruses, addressees should scan this email and any attachments for viruses. X-on makes no representation or warranty as to the absence of viruses in this email or any attachments.
_______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users