[tor-bugs] #30350 [Obfuscation/Snowflake]: Hello, in China, currently, Tor Browser 8.5a11 version can't connect to Tor network through Snowflake bridge.

[Tor Bug Tracker & Wiki]

#30350: Hello, in China, currently, Tor Browser 8.5a11 version can't connect to Tor
network through Snowflake bridge.
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 Reporter:  amiableclarity2011     |          Owner:  cohosh
     Type:  defect                 |         Status:  accepted
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:                         |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:
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Comment (by dcf):

 Replying to [comment:10 cohosh]:
 > This makes sense to me, I think we do need to do something about item 2
 as well though. I wasn't able to test the behaviour of tor browser at the
 VPS but just the Tor client was having trouble quickly deciding whether or
 not the proxy was being blocked. I suppose this won't be as big an issues
 when we have more diverse proxies though.

 No disagreement there. Snowflake can do better about detecting a lack of
 connectivity. Actually it's kind of a general thing that affects more than
 just Snowflake. See #24640 for meek for example. The PT interface was
 designed with a mindset of obfs4-like transport that make a single TCP
 connection to a single bridge and always have a well-defined connectedness
 state--it doesn't map perfectly onto transports that don't work like that.
 I think there are bugs on the tor side as well--see comment:3:ticket:26891
 where deleting a state file made the connection start working, which looks
 like #11301 even though that is supposed to be fixed.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30350#comment:11>
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