[tor-bugs] #9574 [Tor]: Process ntor create cells before tap create cells?

[Tor Bug Tracker & Wiki]

#9574: Process ntor create cells before tap create cells?
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     Reporter:  arma         |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  normal       |  Milestone:  Tor: 0.2.5.x-final
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-relay, maybe-proposal
Actual Points:               |  Parent ID:
       Points:               |
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Changes (by mikeperry):

 * cc: nickm (added)


Comment:

 We've begun to see this in the form of a botnet/popular software update
 that has decided to use Tor: https://metrics.torproject.org/users.html.
 Many relays are already at 100% CPU and are dropping onionskins as a
 result. Based on the lack of increase in users in Iran and other places
 where 0.2.3.x is blocked but 0.2.4.x is not, it is likely that the botnet
 is using 0.2.3.x and TAP.

 I'm also wondering if it wouldn't be simpler just to throw our hands up on
 0.2.3.x and write a patch to disable TAP entirely via a consensus
 parameter. I am not sure how much longer the Tor network will remain
 functional under this load.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9574#comment:1>
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