WebRTC connection failed due to DTLS error
Anton Pryima
zingfrid at gmail.com
Thu Dec 24 07:25:25 UTC 2020
Hello Vladimir.
According to both logs provided, I see an issue with OpenSSL. Please ensure
that both ends have correct and working versions of OpenSSL.
Best regards,
Anton
On Thu, Dec 24, 2020, 08:40 Vladimir Tyutin <vladimir.tyutin at gmail.com>
wrote:
> Hello everyone,
> Can someone help me with issue below?
> Please review the log from previous mail and suggest what is the issue
> with dtls and how to fix it.
>
> Thanks,
> Vladimir
>
> On 20 Dec 2020, at 09:53, Vladimir Tyutin <vladimir.tyutin at gmail.com>
> wrote:
>
>
> Please find the log attached with dtls log level set to 7.
> Please help me to understand what is wrong and why peer connection is
> failing.
>
> Thanks,
> Vladimir
>
> On Sun, Dec 20, 2020 at 8:56 AM Vladimir Tyutin <vladimir.tyutin at gmail.com>
> wrote:
>
>> Hi Sean,
>> Thanks for your reply. Could you please advise how better to collect DTLS
>> pcaps?
>> I can activate log for DTLS element like this:
>> export GST_DEBUG=2,dtls*:7
>> Is it enough?
>>
>> By the way I'm trying to get webrtc working between Lindenis V536 camera
>> and iOS app.
>> They have already worked before together. On iOS side nothing is changed.
>> in camera side I have migrated from gstreamer version 1.16.0 to version
>> 1.18.2.
>> So is there any changes in dtls side between these versions.
>> Any suggesting how better to debug this issue I would appreciate.
>>
>> Thanks,
>> Vladimir
>>
>> PS. I will share DTLS element logs once I collect it.
>>
>> On Sun, Dec 20, 2020 at 1:19 AM Sean DuBois <sean at siobud.com> wrote:
>>
>>> Hey Vladimir,
>>>
>>> Would you mind getting a pcap of your DTLS traffic? I assume you are
>>> getting a Close because the clients are incompatible. These are the big
>>> ones I have seen with DTLS.
>>>
>>> * One side doesn't have use_srtp
>>> * DTLS v1.0 and v1.2 mismatch
>>> * One side requiring Extended Master Secret, other side not supporting
>>> * .... lots of other crazy stuff :)
>>>
>>> thanks
>>>
>>> On Sat, Dec 19, 2020 at 04:54:58PM +0300, Vladimir Tyutin wrote:
>>> > Please assist me to solve the issue below.
>>> > I observe WebRTC peer connection can't be established.
>>> > In log I see some errors related to dtls. Please help me understand
>>> the log
>>> > below and get the issue resolved:
>>> >
>>> > 0:01:21.644288173 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1ab0f08 DTLS state: 0x0
>>> > 0:01:21.644405214 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1ab0f08 ICE state: 0x1
>>> > 0:01:21.644569089 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1bed050 DTLS state: 0x3
>>> > 0:01:21.644678631 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1bed050 ICE state: 0x2
>>> > 0:01:21.644764381 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtc>
>>> > ICE connection state: 0x6. DTLS connection state: 0x9
>>> > 0:01:21.644837673 1090 0x1b401b0 FIXME webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1189:_collate_peer_connection_states:<webrtc>
>>> > Undefined situation detected, returning old state
>>> > 0:01:21.762102246 1090 0x1f1b7b0 WARN dtlssrtpdemux
>>> >
>>> gst-plugins-bad-1.18.2/ext/dtls/gstdtlssrtpdemux.c:134:sink_chain:<dtlssrtpdemux2>
>>> > received invalid buffer: 1
>>> > 0:01:21.769914036 1090 0x1f1b7b0 ERROR dtlsconnection
>>> >
>>> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsconnection.c:985:handle_error:<GstDtlsConnection at 0x1da56f0
>>> >
>>> > Fatal SSL error
>>> > 0:01:21.770157620 1090 0x1f1b7b0 ERROR dtlsconnection
>>> >
>>> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsconnection.c:968:ssl_err_cb:<GstDtlsConnection at 0x1da56f0
>>> >
>>> > ssl error:
>>> > 2947169560:error:14102410:lib(20):func(258):reason(1040):NA:0:SSL alert
>>> > number 40
>>> >
>>> > 0:01:21.770551453 1090 0x1f1b7b0 ERROR dtlsdec
>>> >
>>> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsdec.c:502:process_buffer:<dtlsdec2>
>>> > Error processing buffer: Fatal SSL error
>>> > 0:01:21.770553453 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1ab0f08 DTLS state: 0x0
>>> > 0:01:21.770745245 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1ab0f08 ICE state: 0x1
>>> > 0:01:21.770861286 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1bed050 DTLS state: 0x2
>>> > 0:01:21.770951120 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc>
>>> > transceiver 0x1bed050 ICE state: 0x2
>>> > 0:01:21.771039203 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtc>
>>> > ICE connection state: 0x6. DTLS connection state: 0x5
>>> > 0:01:21.771119036 1090 0x1b401b0 TRACE webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1145:_collate_peer_connection_states:<webrtc>
>>> > returning failed
>>> > 0:01:21.771230036 1090 0x1b401b0 INFO webrtcbin
>>> >
>>> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1295:_update_peer_connection_state_task:<webrtc>
>>> > Peer connection state change from connecting(1) to failed(4)
>>> > [CAMERA_DEBUG] Peer connection state: failed
>>> > 0:01:21.770664245 1090 0x1f1b7b0 WARN dtlsdec
>>> >
>>> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsdec.c:503:process_buffer:<dtlsdec2>
>>> > error: Fatal SSL error
>>> > 0:01:21.772238245 1090 0x1f1b7b0 ERROR dtlsdec
>>> > gst-plugins-bad-1.18.2/ext/dtls/gstdtlsdec.c:618:sink_chain:<dtlsdec2>
>>> > Failed to process buffer: error
>>> > 0:01:21.808121366 1090 0x1f1ba90 WARN basesrc
>>> >
>>> gstreamer-1.18.2/libs/gst/base/gstbasesrc.c:3127:gst_base_src_loop:<nicesrc2>
>>> > error: Internal data stream error.
>>> > 0:01:21.808266866 1090 0x1f1ba90 WARN basesrc
>>> >
>>> gstreamer-1.18.2/libs/gst/base/gstbasesrc.c:3127:gst_base_src_loop:<nicesrc2>
>>> > error: streaming stopped, reason error (-5)
>>> > 0:01:21.809681158 1090 0x1f1ba90 WARN queue
>>> >
>>> gstreamer-1.18.2/plugins/elements/gstqueue.c:990:gst_queue_handle_sink_event:<queue8>
>>> > error: Internal data stream error.
>>> > 0:01:21.809811158 1090 0x1f1ba90 WARN queue
>>> >
>>> gstreamer-1.18.2/plugins/elements/gstqueue.c:990:gst_queue_handle_sink_event:<queue8>
>>> > error: streaming stopped, reason error (-5)
>>>
>>> > _______________________________________________
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>>> > gstreamer-devel at lists.freedesktop.org
>>> > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>> _______________________________________________
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>>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>> <log_v536.txt>
>
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