Hi,
I'm trying to implement a webrtc gateway in Java, and I'm currently working on
DTLS-SRTP setup.
I'm able to work as a DTLS client (Firefox start the peer connection, ICE is
ok, and a DTLS-SRTP handshake is done, with my gateway in the DTLS client role).
But, when trying to add the DTLS server mode (starting a peerconnection using
my gateway), the DTLS handshake seems ok but I'm not seeing any media from
Firefox.
On the client side, firefox doesn't play / capture any media.
Using wireshark, I'm seeing the following exchange for my DTLS handshake :
Outgoing ( working, gateway is 119, firefox is 138 ) :
No. Time Source Destination Protocol
131 16.406458000 192.168.2.138 192.168.2.119 STUN
Binding Success Response XOR-MAPPED-ADDRESS: 192.168.2.119:15000
135 16.414422000 192.168.2.119 192.168.2.138 STUN
Binding Indication
150 16.682423000 192.168.2.119 192.168.2.138 DTLSv1.0
Client Hello
151 16.688362000 192.168.2.138 192.168.2.119 DTLSv1.0
Server Hello, Certificate, Server Key Exchange, Certificate Request, Server
Hello Done
152 16.690099000 192.168.2.119 192.168.2.138 DTLSv1.0
Certificate
154 16.709109000 192.168.2.119 192.168.2.138 DTLSv1.0
Client Key Exchange
155 16.737320000 192.168.2.119 192.168.2.138 DTLSv1.0
Certificate Verify
156 16.738039000 192.168.2.119 192.168.2.138 DTLSv1.0
Change Cipher Spec
157 16.738122000 192.168.2.119 192.168.2.138 DTLSv1.0
Encrypted Handshake Message
158 16.739044000 192.168.2.138 192.168.2.119 DTLSv1.0
Change Cipher Spec, Encrypted Handshake Message
159 16.748613000 192.168.2.119 192.168.2.138 UDP
Source port: 15000 Destination port: 51405
160 16.750621000 192.168.2.138 192.168.2.119 UDP
Source port: 51405 Destination port: 15000
161 16.768591000 192.168.2.119 192.168.2.138 UDP
Source port: 15000 Destination port: 51405
162 16.770416000 192.168.2.138 192.168.2.119 UDP
Source port: 51405 Destination port: 15000
Incoming (not working, gateway is 119, firefox is 138) :
No. Time Source Destination Protocol
359 26.659827000 192.168.2.138 192.168.2.119 STUN
Binding Success Response XOR-MAPPED-ADDRESS: 192.168.2.119:15000
361 26.680108000 192.168.2.138 192.168.2.119 DTLSv1.0
Client Hello
364 26.683913000 192.168.2.119 192.168.2.138 STUN
Binding Indication
366 26.854047000 192.168.2.119 192.168.2.138 DTLSv1.0
Server Hello
367 26.854444000 192.168.2.119 192.168.2.138 DTLSv1.0
Certificate
370 26.878839000 192.168.2.119 192.168.2.138 DTLSv1.0
Server Key Exchange
371 26.878927000 192.168.2.119 192.168.2.138 DTLSv1.0
Certificate Request
372 26.878979000 192.168.2.119 192.168.2.138 DTLSv1.0
Server Hello Done
376 26.886514000 192.168.2.138 192.168.2.119 DTLSv1.0
Certificate, Client Key Exchange, Certificate Verify, Change Cipher Spec,
Encrypted Handshake Message
378 26.907428000 192.168.2.119 192.168.2.138 DTLSv1.0
Change Cipher Spec
379 26.907526000 192.168.2.119 192.168.2.138 DTLSv1.0
Encrypted Handshake Message
380 26.916769000 192.168.2.119 192.168.2.138 UDP
Source port: 15000 Destination port: 53024
383 26.936579000 192.168.2.119 192.168.2.138 UDP
Source port: 15000 Destination port: 53024
384 26.957456000 192.168.2.119 192.168.2.138 UDP
Source port: 15000 Destination port: 53024
385 26.976910000 192.168.2.119 192.168.2.138 UDP
Source port: 15000 Destination port: 53024
I'm using bouncycastle for DTLS, but a glance to the wireshark traces indicate
that the handshake is completed normally.
How can I get more logs / traces from firefox in order to debug this (firebug /
firefox console doesn't print any errors) ?
My firefox instance is running on a windows machine, and is a stock Firefox
23.0.1
I can also provide more details / a wireshark capture if someone is interested.
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