<div dir="auto">Hello Vladimir,<div dir="auto">Can you mount host's HDD folder with NFS, and redirect logs there? I'm not quite sure what is problem about, so I can't say for sure what components should be enabled. After some googling your problem, it is recommended to look through libnice logs and ice candidates. So, it is not useful to have dtls, and rtp logs. </div><div dir="auto">Same issue, for example, can be caused if there are too much ice candidates, which libnice unable to handle.</div><div dir="auto"><br></div><div dir="auto">Best regards,</div><div dir="auto">Anton.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 29, 2020, 18:14 Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr">I could not collect log with GST_DEBUG=7 because it's too much for my camera device. <div>So I collected logs for these plugins:</div><div>export GST_DEBUG=2,webrtc*:7,*rtp*:7,*dtls*:7<br></div><div><br></div><div>Log started from moment I ask webrtc to create SDP offer. </div><div>Please give me any idea what might be wrong and how to solve it. </div><div><br></div><div>Thanks,</div><div>Vladimir</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 29, 2020 at 4:06 PM Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" target="_blank" rel="noreferrer">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>I can collect it from the moment when webrtc offer is generating. <div><br></div><div>My architecture is:</div><div>1. Remote client (iOS, Android, Web) send MQTT request to camera device to generate SDP offer</div><div>2. Offer is generating on camera and sent to client. </div><div>3. Client responds with SDP answer and webrtc session starts</div><div><br></div><div>I can collect log at the moment offer is generating on camera device.<br><div><br><blockquote type="cite"><div>On 29 Dec 2020, at 15:56, Anton Pryima <<a href="mailto:zingfrid@gmail.com" target="_blank" rel="noreferrer">zingfrid@gmail.com</a>> wrote:</div><br><div><div dir="ltr">if it is possible, it will be better to have GST_DEBUG=*:7, but cut only the connection state (you know, when it will be.... :)<div><br></div><div>Best regards,</div><div>Anton</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 29, 2020 at 2:52 PM Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" target="_blank" rel="noreferrer">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>Sure Anton,<div>I will collect it once again and attach it to the next email. </div><div><br></div><div>I use the following command to activate logging:</div><div>“export GST_DEBUG=2,webrtc*:6,*dtls*:7”</div><div><br></div><div>Let me know if I need to include any other plugins to logging that might assist to analyse the issue. </div><div><br></div><div>Thanks,</div><div>Vladimir <br><div><br><blockquote type="cite"><div>On 29 Dec 2020, at 15:22, Anton Pryima <<a href="mailto:zingfrid@gmail.com" target="_blank" rel="noreferrer">zingfrid@gmail.com</a>> wrote:</div><br><div><div dir="ltr">Hello Vladimir,<div><br></div><div>I've tried to google your errors and it looks like that dtls is not the reason. Can you please attach the full connection log from the beginning?</div><div><br></div><div>Best regards,</div><div>Anton.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 29, 2020 at 10:02 AM Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" target="_blank" rel="noreferrer">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Anton, <div>It's difficult to do on opponent side because there I have:</div><div>1. iOS application with webrtc</div><div>2. Android application with webrtc</div><div>3. JS application with webrtc</div><div><br></div><div>Can you advise how to check openssl there?</div><div>But all three applications worked well when I used gstreamer version 1.16.0 on my Linux camera device. </div><div>Once I updated gstreamer version to 1.18.2 on camera device something broke. </div><div>So I'm pretty sure issue on camera side but I have no idea how to understand this log with dtls error and what should I fix.</div><div><br></div><div>Moreover on my linux camera device I have gnutls and openssl. What is used by dtls plugin? Is it openssl or gnutls?</div><div><br></div><div>Thanks,</div><div>Vladimir </div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 29, 2020 at 10:49 AM Anton Pryima <<a href="mailto:zingfrid@gmail.com" target="_blank" rel="noreferrer">zingfrid@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Hello Vladimir.<div dir="auto"><br></div><div dir="auto">Try to execute 'openssl version' at the both sides and provide output.</div><div dir="auto"><br></div><div dir="auto">Best regards,</div><div dir="auto">Anton.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Dec 28, 2020, 22:03 Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" target="_blank" rel="noreferrer">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">I still can't resolve the issue. <div>Can someone with dtls plugin experience analyze the log attached and tell me what is wrong and how to fix it?</div><div><br></div><div>DTLS plugin exists. Openssl is available on my camera device:</div><div><div>root@tina:~# openssl version</div><div>OpenSSL 1.1.0i 14 Aug 2018</div></div><div><br></div><div>So why webrtc can't connect due to dtls issue?</div><div><br></div><div>Same code was working on gstreamer version 1.16.0. The issue appeared when I migrated to gstreamer version 1.18.2.</div><div><br></div><div>I have also updated libnice to the latest version. </div><div><br></div><div>Please help me.</div><div><br></div><div>Thanks,</div><div>Vladimir</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Dec 24, 2020 at 10:48 AM Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" rel="noreferrer noreferrer" target="_blank">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div dir="ltr">Thanks Anton,</div><div dir="ltr">Do you know if there any command in Linux to verify OpenSSL exists and running well?</div><div dir="ltr">In my build for openwrt Linux OpenSSL is included. </div><div dir="ltr"><br><blockquote type="cite">On 24 Dec 2020, at 10:25, Anton Pryima <<a href="mailto:zingfrid@gmail.com" rel="noreferrer noreferrer" target="_blank">zingfrid@gmail.com</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="auto"><div>Hello Vladimir.</div><div dir="auto"><br></div><div dir="auto">According to both logs provided, I see an issue with OpenSSL. Please ensure that both ends have correct and working versions of OpenSSL.</div><div dir="auto"><br></div><div dir="auto">Best regards,</div><div dir="auto">Anton<br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Thu, Dec 24, 2020, 08:40 Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" rel="noreferrer noreferrer" target="_blank">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div dir="ltr">Hello everyone,</div><div dir="ltr">Can someone help me with issue below?</div><div dir="ltr">Please review the log from previous mail and suggest what is the issue with dtls and how to fix it. </div><div dir="ltr"><br></div><div dir="ltr">Thanks,</div><div dir="ltr">Vladimir </div><div dir="ltr"><br><blockquote type="cite">On 20 Dec 2020, at 09:53, Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" rel="noreferrer noreferrer noreferrer" target="_blank">vladimir.tyutin@gmail.com</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">Please find the log attached with dtls log level set to 7. <div>Please help me to understand what is wrong and why peer connection is failing. </div><div><br></div><div>Thanks,</div><div>Vladimir</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Dec 20, 2020 at 8:56 AM Vladimir Tyutin <<a href="mailto:vladimir.tyutin@gmail.com" rel="noreferrer noreferrer noreferrer" target="_blank">vladimir.tyutin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi Sean,<div>Thanks for your reply. Could you please advise how better to collect DTLS pcaps?</div><div>I can activate log for DTLS element like this:</div><div>export GST_DEBUG=2,dtls*:7</div><div>Is it enough?</div><div><br></div><div>By the way I'm trying to get webrtc working between Lindenis V536 camera and iOS app. </div><div>They have already worked before together. On iOS side nothing is changed. </div><div>in camera side I have migrated from gstreamer version 1.16.0 to version 1.18.2. </div><div>So is there any changes in dtls side between these versions. </div><div>Any suggesting how better to debug this issue I would appreciate.</div><div><br></div><div>Thanks,</div><div>Vladimir</div><div><br></div><div>PS. I will share DTLS element logs once I collect it.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Dec 20, 2020 at 1:19 AM Sean DuBois <<a href="mailto:sean@siobud.com" rel="noreferrer noreferrer noreferrer" target="_blank">sean@siobud.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hey Vladimir,<br>
<br>
Would you mind getting a pcap of your DTLS traffic? I assume you are<br>
getting a Close because the clients are incompatible. These are the big<br>
ones I have seen with DTLS.<br>
<br>
* One side doesn't have use_srtp<br>
* DTLS v1.0 and v1.2 mismatch<br>
* One side requiring Extended Master Secret, other side not supporting<br>
* .... lots of other crazy stuff :)<br>
<br>
thanks<br>
<br>
On Sat, Dec 19, 2020 at 04:54:58PM +0300, Vladimir Tyutin wrote:<br>
> Please assist me to solve the issue below.<br>
> I observe WebRTC peer connection can't be established.<br>
> In log I see some errors related to dtls. Please help me understand the log<br>
> below and get the issue resolved:<br>
><br>
> 0:01:21.644288173 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1ab0f08 DTLS state: 0x0<br>
> 0:01:21.644405214 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1ab0f08 ICE state: 0x1<br>
> 0:01:21.644569089 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1bed050 DTLS state: 0x3<br>
> 0:01:21.644678631 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1bed050 ICE state: 0x2<br>
> 0:01:21.644764381 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtc><br>
> ICE connection state: 0x6. DTLS connection state: 0x9<br>
> 0:01:21.644837673 1090 0x1b401b0 FIXME webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1189:_collate_peer_connection_states:<webrtc><br>
> Undefined situation detected, returning old state<br>
> 0:01:21.762102246 1090 0x1f1b7b0 WARN dtlssrtpdemux<br>
> gst-plugins-bad-1.18.2/ext/dtls/gstdtlssrtpdemux.c:134:sink_chain:<dtlssrtpdemux2><br>
> received invalid buffer: 1<br>
> 0:01:21.769914036 1090 0x1f1b7b0 ERROR dtlsconnection<br>
> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsconnection.c:985:handle_error:<GstDtlsConnection@0x1da56f0><br>
> Fatal SSL error<br>
> 0:01:21.770157620 1090 0x1f1b7b0 ERROR dtlsconnection<br>
> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsconnection.c:968:ssl_err_cb:<GstDtlsConnection@0x1da56f0><br>
> ssl error:<br>
> 2947169560:error:14102410:lib(20):func(258):reason(1040):NA:0:SSL alert<br>
> number 40<br>
><br>
> 0:01:21.770551453 1090 0x1f1b7b0 ERROR dtlsdec<br>
> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsdec.c:502:process_buffer:<dtlsdec2><br>
> Error processing buffer: Fatal SSL error<br>
> 0:01:21.770553453 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1ab0f08 DTLS state: 0x0<br>
> 0:01:21.770745245 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1ab0f08 ICE state: 0x1<br>
> 0:01:21.770861286 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1bed050 DTLS state: 0x2<br>
> 0:01:21.770951120 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtc><br>
> transceiver 0x1bed050 ICE state: 0x2<br>
> 0:01:21.771039203 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtc><br>
> ICE connection state: 0x6. DTLS connection state: 0x5<br>
> 0:01:21.771119036 1090 0x1b401b0 TRACE webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1145:_collate_peer_connection_states:<webrtc><br>
> returning failed<br>
> 0:01:21.771230036 1090 0x1b401b0 INFO webrtcbin<br>
> gst-plugins-bad-1.18.2/ext/webrtc/gstwebrtcbin.c:1295:_update_peer_connection_state_task:<webrtc><br>
> Peer connection state change from connecting(1) to failed(4)<br>
> [CAMERA_DEBUG] Peer connection state: failed<br>
> 0:01:21.770664245 1090 0x1f1b7b0 WARN dtlsdec<br>
> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsdec.c:503:process_buffer:<dtlsdec2><br>
> error: Fatal SSL error<br>
> 0:01:21.772238245 1090 0x1f1b7b0 ERROR dtlsdec<br>
> gst-plugins-bad-1.18.2/ext/dtls/gstdtlsdec.c:618:sink_chain:<dtlsdec2><br>
> Failed to process buffer: error<br>
> 0:01:21.808121366 1090 0x1f1ba90 WARN basesrc<br>
> gstreamer-1.18.2/libs/gst/base/gstbasesrc.c:3127:gst_base_src_loop:<nicesrc2><br>
> error: Internal data stream error.<br>
> 0:01:21.808266866 1090 0x1f1ba90 WARN basesrc<br>
> gstreamer-1.18.2/libs/gst/base/gstbasesrc.c:3127:gst_base_src_loop:<nicesrc2><br>
> error: streaming stopped, reason error (-5)<br>
> 0:01:21.809681158 1090 0x1f1ba90 WARN queue<br>
> gstreamer-1.18.2/plugins/elements/gstqueue.c:990:gst_queue_handle_sink_event:<queue8><br>
> error: Internal data stream error.<br>
> 0:01:21.809811158 1090 0x1f1ba90 WARN queue<br>
> gstreamer-1.18.2/plugins/elements/gstqueue.c:990:gst_queue_handle_sink_event:<queue8><br>
> error: streaming stopped, reason error (-5)<br>
<br>
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