[tor-bugs] #22136 [Core Tor/Tor]: Make guards expire client connections

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#22136: Make guards expire client connections
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 Reporter:  teor          |          Owner:
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.1.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:  #22805        |         Points:  0.3
 Reviewer:                |        Sponsor:
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Comment (by mikeperry):

 Well, the padding code tries to set connection lifetimes on the order of
 an hour by controlling idle circuit lifetime. It tries to ensure that you
 always have some kind of circuit open for around 30-60 minutes, even if
 the client is idle. After that point, it stops holding circuits open or
 building new ones, and then a few minutes after that, the client should
 close the orconn itself.

 So this bug should only affect padding overhead if there are buggy clients
 (or alternate client implementations) that do not close their own idle
 circuits and orconns.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22136#comment:2>
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