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[tor-bugs] #23101 [Core Tor/Tor]: Predict and build specific HS purpose circuits (rather than GENERAL)



#23101: Predict and build specific HS purpose circuits (rather than GENERAL)
--------------------------+------------------------------------------------
     Reporter:            |      Owner:
  mikeperry               |
         Type:            |     Status:  new
  enhancement             |
     Priority:  Medium    |  Milestone:  Tor: unspecified
    Component:  Core      |    Version:
  Tor/Tor                 |
     Severity:  Normal    |   Keywords:  tor-hs, tor-guard, guard-discovery
Actual Points:            |  Parent ID:  #9001
       Points:            |   Reviewer:
      Sponsor:            |
--------------------------+------------------------------------------------
 circuit_predict_and_launch_new() builds CIRCUIT_PURPOSE_C_GENERAL
 circuits, even for hidden service circuits. When we implement
 Proposa247/#9001, we will need to give all hidden service circuits their
 specific purposes right from build time, in order to ensure that they are
 build using Vanguards. We will also need to disable cannibalization for
 them, since cannibalized GENERAL circuits will not use our vanguards,
 either.

 This means we need to change the prediction recording and circuit building
 to record, predict, and build each HS circuit type independently.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23101>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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