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Re: [tor-bugs] #5903 [Tor]: Restore ExcludeEntryNodes feature

#5903: Restore ExcludeEntryNodes feature
--------------------------------------+-------------------------------------
 Reporter:  cypherpunks               |          Owner:                    
     Type:  enhancement               |         Status:  new               
 Priority:  normal                    |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor                       |        Version:                    
 Keywords:  tor-relay needs-proposal  |         Parent:                    
   Points:                            |   Actualpoints:                    
--------------------------------------+-------------------------------------
Changes (by nickm):

  * keywords:  tor-relay => tor-relay needs-proposal


Comment:

 The tricky parts to get right will be:

   * Making sure it applies to entry nodes on the codepath where we pick
 guards at random from all guards, AND on the codepath where we pick guards
 from configured EntryNodes, AND on the codepath where directory guards are
 turned off entirely.
   * Deciding whether it applies to anonymous connections only, or to
 direct directory requests as well.
   * Figuring out what should happen when
   * Figuring out what should happen when the user has no consensus
 networkstatus document, and they have excluded every authority and
 directory source that they know about.
   * Figuring out what should happen if a specified bridge is excluded.
   * Figuring out what should happen if a bridge is excluded by
 fingerprint, but we don't learn its fingerprint until after connecting to
 it.
   * Refactoring the code and/or adding mocking stubs to the code
 sufficient for us to have rigorous testing for all of the above.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5903#comment:5>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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