[tor-bugs] #7733 [Tor]: Two channels required for bootstrap
Tor Bug Tracker & Wiki
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Mon Sep 22 04:00:44 UTC 2014
#7733: Two channels required for bootstrap
-------------------------+-------------------------------------------------
Reporter: dcf | Owner: nickm
Type: defect | Status: needs_review
Priority: normal | Milestone: Tor: 0.2.6.x-final
Component: Tor | Version:
Resolution: | Keywords: tor-client, flashproxy,
Actual Points: | 026-triaged-0, nickm-patch
Points: | Parent ID:
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Comment (by dcf):
Replying to [comment:14 andrea]:
> Review: the patch looks like it does what it says it does, but I'd feel
better about it if we had a way to repro the problem and test that this is
actually the cause.
It's really easy to reproduce. Just use a SOCKS tunnel as a
pseudo–pluggable transport.
{{{
ssh -v -N -D 9001 people.torproject.org
}}}
Without a fingerprint, you get two connections through the tunnel:
{{{
tor ClientTransportPlugin "dummy socks5 127.0.0.1:9001" UseBridges 1
Bridge "dummy 128.31.0.34:9101"
}}}
{{{
debug1: Connection to port 9001 forwarding to socks port 0 requested.
debug1: channel 2: new [dynamic-tcpip]
debug1: Connection to port 9001 forwarding to socks port 0 requested.
debug1: channel 3: new [dynamic-tcpip]
}}}
If you include the fingerprint, you only get one:
{{{
tor ClientTransportPlugin "dummy socks5 127.0.0.1:9001" UseBridges 1
Bridge "dummy 128.31.0.34:9101 9695DFC35FFEB861329B9F1AB04C46397020CE31"
}}}
{{{
debug1: Connection to port 9001 forwarding to socks port 0 requested.
debug1: channel 2: new [dynamic-tcpip]
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7733#comment:15>
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