Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2023/tor-meeting.2023-07-31-15.58.html
And our meeting pad:
Anti-censorship work meeting pad
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THIS IS A PUBLIC PAD
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Anti-censorship
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Next meeting: Thursday, Aug 10 16:00 UTC
Facilitator: shelikhoo
Weekly meetings, every Thursday at 16:00 UTC, in #tor-meeting at OFTC
(channel is logged while meetings are in progress)
This week's Facilitator: onyinyang
== Goal of this meeting ==
Weekly check-in about the status of anti-censorship work at Tor.
Coordinate collaboration between people/teams on anti-censorship at the Tor Project and Tor community.
== Links to Useful documents ==
\* Our anti\-censorship roadmap:
\* Roadmap: https://gitlab.torproject.org/groups/tpo/anti-censorship/-/boards
\* The anti\-censorship team's wiki page:
\* https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/home
\* Past meeting notes can be found at:
\* https://lists.torproject.org/pipermail/tor-project/
\* Tickets that need reviews: from sponsors, we are working on:
\* All needs review tickets:
\* https://gitlab.torproject.org/groups/tpo/anti-censorship/-/merge_requests?scope=all&utf8=%E2%9C%93&state=opened&assignee_id=None
\* Sponsor 96 <\-\- meskio, shell, onyinyang, cohosh
\* https://gitlab.torproject.org/groups/tpo/-/milestones/24
\* Sponsor 139 <\-\- hackerncoder, irl, joydeep, meskio, emmapeel working on it
\* https://pad.riseup.net/p/sponsor139-meeting-pad
== Announcements ==
\*
== Discussion ==
This week:
* ptspec status version support
* to be included in 0.4.8
* Add support for PT STATUS TYPE=version messages. (!731) · Merge requests · The Tor Project / Core / Tor · GitLab
* Add STATUS version support (!1) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / goptlib · GitLab
* goptlib not blocking core tor
\* Webtunnel soft release and next phase: https://gitlab.torproject.org/tpo/community/team/-/issues/94
\* Feedback collected
\* improving the docs for compiling from the source
\* some ppl asked apache instructions and not just nginx
\* didn't work in china and worked in russia
\* Next steps
\* gus will improve and move the documentation to the community portal
\* will talk with applications to include webtunnel in the upcoming TB 13 in september
\* we'll organize a call for bridges
\* HTTP CONNECT as an alternative to SOCKS for PT interfacing
\* HTTP CONNECT proxy has advantages over SOCKS4/5, one of which is abundant room to encode bridge parameters
\* Mentioned in an issue about bridge line length
\* https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/104#note_2918118
\* dcf: server\-side SOCKS \(needed for client PT\) has poor support in standard programming language packages, which is why goptlib and Proteus implement their own SOCKS server:
\* https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/goptlib/-/blob/v1.4.0/socks.go
\* https://github.com/unblockable/proteus/tree/v0.1.0/src/net/proto/socks
\* What about MASQUE \(https://datatracker.ietf.org/wg/masque/about/) more generally \(HTTP proxying but more general than just HTTP CONNECT, would leave room for e\.g\. datagram\-based proxying\)?
\* "The primary goal of this working group is to develop mechanism\(s\) that allow configuring and concurrently running multiple proxied stream\- and datagram\-based flows inside an HTTP connection\."
== Actions ==
\* Next week \(August 10th\): follow up on Snowflake/Pion incompatibility with Android 11\+ and SDK >29\) when Guardian project responds and shelikhoo returns:
\* https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40278
\* might only affect android apps that target android>11, but google will start requiring it soon \(end of August 2023\)
\* https://support.google.com/googleplay/android-developer/answer/11926878
\* Issue on pion side, closed as wontfix: https://github.com/pion/transport/issues/228
\* we ought to be up to date with dependencies, as renovatebot is connected to the snowflake repo
\* meskio will cc Guardian Project on \#40278 to see if they have any insight
\* shelikhoo will try to reproduce and will try the available patches
\* no news 2023\-08\-03
== Interesting links ==
\*
== Reading group ==
\* We will discuss "" on
\*
\* Questions to ask and goals to have:
\* What aspects of the paper are questionable?
\* Are there immediate actions we can take based on this work?
\* Are there long\-term actions we can take based on this work?
\* Is there future work that we want to call out in hopes that others will pick it up?
== Updates ==
Name:
This week:
- What you worked on this week.
Next week:
- What you are planning to work on next week.
Help with:
- Something you need help with.
cecylia (cohosh): away until 2023-08-17
Last week:
This week:
Needs help with:
dcf: 2023-08-03
Last week:
- wrote forum post for proxy churn measurements Advisory: Mistakenly collected proxy churn measurements on the Snowflake broker have been deleted and made issue public Snowflake Broker IP Change Rate Data HMAC Key Used the default value (#40161) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab Snowflake Broker Deployment 22-07-22 (#40162) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- fixed standalone proxy DefaultRelayURL to point back at snowflake.torproject.net Change DefaultRelayURL back to wss://snowflake.torproject.net/. (!156) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
Next week:
- review goptlib STATUS TYPE=version Add STATUS version support (!1) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / goptlib · GitLab
- revise encapsulation.ReadData redesign to return an error in the case of a short buffer Have encapsulation.ReadData read into a provided buffer (!154) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- open issue to have snowflake-client log whenever KCPInErrors is nonzero Deploy snowflake-server for QueuePacketConn buffer reuse fix (#40260) (#40262) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- parent: Improve bug discovery process (#40267) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- open issue to disable /debug endpoint on snowflake broker
Help with:
meskio: 2023-08-03
Last week:
- release and deploy rdsys with telegram bot translations
- test tor's support for status version (tor!731)
- add support for goptlib for status version (goptlib!1)
- review and deploy new circumvention rules for Turkmenistan (rdsys-admin!16)
- update obfs4 docker image to don't expose OrPort (team#129)
- review lox merge requests (lox-rs!15 !18 !21)
Next week:
- organize work for BridgeDB deprecation
Shelikhoo: 2023-07-27
Last Week:
- [Merge Request Awaiting] Add SOCKS5 forward proxy support to snowflake (snowflake!64) (stalled)
- [Research] HTTPT Planning Add HTTPT as a pluggable transport to Tor Browser (#1) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / HTTPT · GitLab
- logcollector alert system - ongoing
- Reviewing & comment on merge requests
- FOCI Keynote and attendence
Next Week/TODO:
- logcollector alert system <- immediate todo
onyinyang: 2023-08-03
Last week(s):
- Implemented db
- decided against polodb and went for sled instead
- not sure if reading/writing the lox-context to json should still be supported at all or just removed
\- Implemented and tested a basic k\-invites for open entry distribution
- Thought more deeply about how best to sync Lox with rdsys given Change labelling of resources failing tests from `gone` (#168) · Issues · The Tor Project / Anti-censorship / rdsys · GitLab
- the rdsys API is really not designed for a distributor like Lox that needs persistence. Even a lastPassed flag will only be helpful for `gone` resources if Lox stores all of the resource info from rdsys and checks it regularly. This diverges from the original intention of rdsys, in which rdsys should be the 'arbiter of truth' for the status of resources.
- The next step is to check the rdsys API and see if the get functionality can improve this situation. I think ideally we want a list of all resources assigned to Lox and their current statuses that can then be checked against something like the `lastPassed` flag each time Lox polls rdsys.
This week:
- Continue with implementing db and synchronization between Lox/rdsys (possibly reliant on some aspects of the former point)
- Work on adding metrics
- AFK from August 5 - 21!
(long term things were discussed at the meeting!):
Riseup Pad
- brainstorming grouping strategies for Lox buckets (of bridges) and gathering context on how types of bridges are distributed/use in practice
Question: What makes a bridge usable for a given user, and how can we encode that to best ensure we're getting the most appropriate resources to people?
1. Are there some obvious grouping strategies that we can already consider?
e.g., by pt, by bandwidth (lower bandwidth bridges sacrificed to open-invitation buckets?), by locale (to be matched with a requesting user's geoip or something?)
2. Does it make sense to group 3 bridges/bucket, so trusted users have access to 3 bridges (and untrusted users have access to 1)? More? Less?
Itchy Onion: 2023-06-08
Last week:
- fixed snowflake pipeline due to outdated Debian image
- continue working on rdsys#56 implementation. Still need to do the following:
- finish up computing bridge distribution in Kraken
- does it have to be deterministic?
- does the disproportion have to be strictly followed
- finish writing tests
- refactor code because some functions are getting extremely long
- what to do with stencil package?
This week:
- review MRs
- continue working on rdsys#56 implementation. Still need to do the following:
- fixed a problem with vanilla bridges not being added properly to the database
- still working on tests
- adding a migaration patch (Consider persistent storage of bridge information (#56) · Issues · The Tor Project / Anti-censorship / rdsys · GitLab)
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onyinyang
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