For the benefit of the mailing list archive, here is the merge request:

Add covert-dtls to proxy and client https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

On Mon, Nov 25, 2024 at 10:34:48PM +0100, Theodor Midtlien wrote:

The patch on my GitLab fork is outdated. I have a new patch that I had some issues with and haven't looked at it for a while.

Problems with connectivity in Russia are unfortunate news, and now that the new webrtc version has been merged, I am motivated to work on this ASAP. I will look at it this week, hopefully I will have a patch ready for testing over the weekend.

I will keep everyone posted.

Cheers, Theodor

tor. 21. nov. 2024 kl. 17:37 skrev David Fifield david@bamsoftware.com:

Recently there have been problems with Snowflake connectivity in Russia.
WebRTC data connections are being established, but then stop working
after some amount of traffic is exchanged. cohosh has investigated and
whatever the cause is, it's not straightforward DTLS fingerprinting.
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40407

Theodor, what's the status of your covertDTLS patch to Snowflake?
https://gitlab.torproject.org/theodorsm/snowflake/-/tree/covert-dtls-test
Is it ready to be run as a test client? If so, can you provide brief
instructions on how to do it?

Snowflake recently updated to pion/webrtc/v4, which I seem to recall was
a blocker for covertDTLS integration.
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/433

Here's where we discussed this topic in the team meeting today.
https://meetbot.debian.net/tor-meeting/2024/tor-meeting.2024-11-21-16.00.log.html#l-48
https://lists.torproject.org/mailman3/hyperkitty/list/tor-project@lists.torproject.org/thread/NHLJAXNT6GKY6UXODUQ2ZANYMASB2ETW/

P.S. I Cced the anti-censorship-team@lists.torproject.org mailing list.