[tor-project] Anti-censorship team meeting notes, 2024-09-26
Shelikhoo
shelikhoo at torproject.org
Thu Sep 26 17:12:49 UTC 2024
Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2024/tor-meeting.2024-09-26-16.00.html
And our meeting pad:
Anti-censorship work meeting pad
--------------------------------
Anti-censorship
--------------------------------
Next meeting: Thursday, Octember 03 16:00 UTC
Facilitator: shelikhoo
^^^(See Facilitator Queue at tail)
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: shelikhoo
== 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 projects, 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
* Project 158 <-- meskio working on it
*
https://gitlab.torproject.org/groups/tpo/anti-censorship/-/issues/?label_name%5B%5D=Project%20158
== Announcements ==
* bridges at torproject.org is now served by rdsys, bridgedb is down now
== Discussion ==
* drop in unrestricted proxies
*
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40386
* not urgent, but something to invetigate early next week
* since last week's (2024-09-12) meeting:
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40386#note_3077527
* "The count is down to 2090. Whoever has historical
Prometheus data, could you please check the drop in unrestricted NAT
type per proxy type? See
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40384#note_3077291.
I wonder if only iPtProxy is affected."
* Currently there are virtually no unrestricted iptproxy
proxies, but maybe there were more in the past (before 2024-09-13)?
*
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40384#note_3077291
* cohosh will provide WofWca with prometheus data
starting from a few days before the drop
(Sep 26 New:)
* probetest delay-before-disconnect to reduce incorrect
"restricted" measurements
*
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/397
* shelikhoo will deploy next week, maybe Monday 2024-09-30
== Actions ==
== 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): 2024-09-26
Last week:
- worked with meek bridge operator to update domain names
- dove into family support for bridges (tor#40935)
- TROVE-2024-012
- merged and then unmerged kcp library update
This week:
- take a look at WofWca's big changes to snowflake
- finish snowflake dependency upgrades that were causing problems
- take a look at snowflake web and webext translations and best
practices
- make changes to Lox encrypted bridge table
-
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/147
dcf: 2024-09-26
Last week:
- archived snowflake-webextension-0.9.0
https://archive.org/details/snowflake-webextension-0.9.0
https://lists.torproject.org/pipermail/anti-censorship-team/2024-September/000358.html
- archived snowflake-webextension-0.9.1
https://archive.org/details/snowflake-webextension-0.9.1
- commented on offline stun:stun.bluesip.net:3478
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40384#note_3080524
https://lists.mayfirst.org/pipermail/guardian-dev/2024-September/005718.html
- helped with replacement snowflake broker setup and commented
on new configuration
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40349#note_3079578
- reviewed comment about packet size
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/389
- closed an obsolete issue, broker "status code 400"
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40379
- closed MR that proposed to rename RelayURL to DefaultRelayURL
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/375
- commented on proposed preflight HEAD request for snowflake
bridge authentication
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/385#note_3081173
- reviewed broker bridge list not being set
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/386
- reviewed snowflake webextension manifest v3 running in
background
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/merge_requests/83
- made a merge request for code quality in the snowflake
webextension
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/merge_requests/84
- reviewed an error handling change for invalid relayURL in
proxy
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/387#note_3081235
- commented on probetest delay-before-disconnect
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/397#note_3081268
- commented on kcp-go v5.6.10 upgrade causing new failing tests
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/353#note_3081276
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40389#note_3082472
- commented on adding port number to snowflake proxy allowlist
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/381#note_3081308
- commented on proposal to allow snowflake clients to freely
choose their bridge
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/379#note_3081311
- replied to forwarded upstream communication with guardian-dev
about inaccurate NAT self-tests by iPtProxy snowflake proxies
https://lists.mayfirst.org/pipermail/guardian-dev/2024-September/005719.html
-
Next week:
- open issue to have snowflake-client log whenever KCPInErrors
is nonzero
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40262#note_2886018
- parent:
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40267
- open issue to disable /debug endpoint on snowflake broker
Help with:
- tell me when to restart the brokers for
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40349
meskio: 2023-09-19
Last week:
- fail to recover github gettor (rdsys#189)
- switch email from BridgeDB to rdsys (rdsys#218)
- deploy bridgedb metrics producer (rdsys#218)
- review and fix X-Forwarded-From header handling in https and
moat (rdsys!390 rdsys!388)
- start a conversation with TPA on contanerizing rdsys
(tpa/team#41769)
Next week:
- investigate if bridges are still jumping distributors (rdsys#232)
Shelikhoo: 2024-09-26
Last Week:
- snowflake broker update/reinstall(cont.):
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40349#note_3026336
- Unreliable+unordered WebRTC data channel transport for
Snowflake rev2 (cont.)(
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/315
) improvements
- Merge request review: docs: improve proxy CLI param
descriptions
(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/370)
- Merge request reviews
Next Week/TODO:
- Merge request reviews
- snowflake broker update/reinstall(cont.):
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40349#note_3026336
- Unreliable+unordered WebRTC data channel transport for
Snowflake rev2 (cont.) (
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/315
) improvements
onyinyang: 2023-09-19
Last week(s):
- started looking into troll-patrol integration for Lox bridge
blockage detection
Next week:
- Global Gathering
- continue troll-patrol integration for Lox bridge blockage
detection
- update lox protocols to return duplicate responses for an
already seen request
- Work on outstanding milestone issues:
in particular:
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/issues/69
- key rotation automation
Later:
pending decision on abandoning lox wasm in favour of some kind
of FFI?
https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/43096):
- add pref to handle timing for pubkey checks in Tor browser
- add trusted invitation logic to tor browser integration:
https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/42974
- improve metrics collection/think about how to show Lox is
working/valuable
- sketch out Lox blog post/usage notes for forum
(long term things were discussed at the meeting!):
https://pad.riseup.net/p/tor-ac-community-azaleas-room-keep
- 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?
theodorsm: 2024-09-12
Last weeks:
-
Next weeks:
- Update Snowflake to use latest pion upstream releases,
waiting for WebRTC v4 beta.
- Test Snowflake fork with covert-dtls
- Condensing thesis into paper
Help with:
- Feedback on thesis
Facilitator Queue:
onyinyang meskio shelikhoo
1. First available staff in the Facilitator Queue will be the
facilitator for the meeting
2. After facilitating the meeting, the facilitator will be moved to the
tail of the queue
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