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dos: Pass transport name on new client connection

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For a bridge configured with a pluggable transport, the transport name is
used, with the IP address, for the GeoIP client cache entry.

However, the DoS subsystem was not aware of it and always passing NULL when
doing a lookup into the GeoIP cache.

This resulted in bridges with a PT are never able to apply DoS defenses for
newly created connections.

Fixes #33491

Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit is contained in:
David Goulet
2020-03-10 14:45:13 -04:00
parent b9c7c61ea5
commit 894ff2dc84
5 changed files with 23 additions and 16 deletions
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changes/ticket33491
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o Major bugfixes (DoS defenses, bridges, pluggable transport):
- DoS subsystem was not given the transport name of the client connection
when tor is a bridge and thus failing to find the GeoIP cache entry for
that client address. This resulted in failing to apply DoS defenses on
bridges with a pluggable transport. Fixes bug 33491; bugfix on
0.3.3.2-alpha.