[asterisk-bugs] [JIRA] (ASTERISK-27624) WebRTC regression with Asterisk 15 and Chrome 64 to receive calls

[Ludovic Gasc (Eyepea) (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=241819#comment-241819 ] 

Ludovic Gasc (Eyepea) commented on ASTERISK-27624:
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After more tests, when we have disabled strictrtp in rtp.conf, we don't have the problem for now with incoming calls and Asterisk 15.2.

The other difference might be the version libsrtp we use:
We use libsrtp2 because it's packaged by Debian distribution, contrary to the recommended version of libsrtp, 1.5.4: https://wiki.asterisk.org/wiki/display/AST/libsrtp
On Debian Stretch, we have only libsrtp 1.4.5, that seems dangerous to use, based on the content of the wiki page.

> WebRTC regression with Asterisk 15 and Chrome 64 to receive calls
> -----------------------------------------------------------------
>
>                 Key: ASTERISK-27624
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27624
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_rtp_asterisk
>    Affects Versions: 15.2.0
>         Environment: Debian 9 64 bits, libsrtp 2.0.0
>            Reporter: Ludovic Gasc (Eyepea)
>              Labels: webrtc
>         Attachments: dtls_error_unexpected_message.pcapng.gz
>
>
> Hi,
> With the new release of Chrome 64 two days ago, we have now a regression with Chrome 64+WebRTC+chan_sip, for the incoming calls on a WebRTC endpoint.
> When the webphone picks up the incoming call, Asterisk hangs up.
> We have this log message in Asterisk console:
> {quote}
> [Jan 25 20:04:52] ERROR[2431][C-00000006]: res_rtp_asterisk.c:2818 __rtp_recvfrom: DTLS failure occurred on RTP instance '0x7fe6140046b8' due to reason 'unexpected message', terminating
> [Jan 25 20:04:52] WARNING[2431][C-00000006]: res_rtp_asterisk.c:5802 ast_rtp_read: RTP Read error: Unspecified.  Hanging up.
> {quote}
> I have also the DTLS+STUN trace for this incoming call.
> It works pretty well with Firefox or an older version of Chrome.
> Do you think it's necessary to open an issue on the bug tracker of Chrome or it's something missing in Asterisk ?
> Do you need more details ?
> Thanks for your help.



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