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[tor-bugs] #21406 [Core Tor/Tor]: The channel is_client flag is inaccurate



#21406: The channel is_client flag is inaccurate
------------------------------+------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: unspecified
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+------------------------------
 The channel_t is_client flag is inaccurate: relays set it when the other
 end uses a CREATE_FAST cell, but usecreatefast is set to 0 in the
 consensus.

 This means that the only time CREATE_FAST is used is when a relay gets an
 extend request *without* an ntor key, and the purpose of the circuit is
 *not* one of the hidden service purposes where TAP is allowed.

 See should_use_create_fast_for_circuit() for details.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21406>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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