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Arthur Edelstein
2bd91dbd34
Previously, circuit_stream_is_being_handled incorrectly reported that (1) an exit port was "handled" by a circuit regardless of whether the circuit was already isolated in some way, and (2) that a stream could be "handled" by a circuit even if their isolation settings were incompatible. As a result of (1), in Tor Browser, circuit_get_unhandled_ports was reporting that all ports were handled even though all non-internal circuits had already been isolated by a SOCKS username+password. Therefore, circuit_predict_and_launch_new was declining to launch new exit circuits. Then, when the user visited a new site in Tor Browser, a stream with new SOCKS credentials would be initiated, and the stream would have to wait while a new circuit with those credentials could be built. That wait was making the time-to-first-byte longer than it needed to be. Now, clean, not-yet-isolated circuit(s) will be automatically launched ahead of time and be ready for use whenever a new stream with new SOCKS credentials (or other isolation criteria) is initiated. Fixes bug 18859. Thanks to Nick Mathewson for improvements.
Tor protects your privacy on the internet by hiding the connection
between your Internet address and the services you use. We believe Tor
is reasonably secure, but please ensure you read the instructions and
configure it properly.
To build Tor from source:
./configure && make && make install
To build Tor from a just-cloned git repository:
sh autogen.sh && ./configure && make && make install
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https://wiki.torproject.org/projects/tor/wiki/doc/TorifyHOWTO
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