[tor-bugs] #9658 [Tor]: Add extrainfo lines for how many create cells of each handshake type we received/processed

[Tor Bug Tracker & Wiki]

#9658: Add extrainfo lines for how many create cells of each handshake type we
received/processed
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     Reporter:  arma    |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.4.x-final
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  tor-relay
Actual Points:          |  Parent ID:  #9657
       Points:          |
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Comment (by mikeperry):

 This has some downsides. It may allow inferences about the guard nodes of
 popular hidden services to be made using extra-info descriptors. However,
 the extra-info read+write history lines probably already do this?

 What I really want is a way to obtain statistics that can tell us how we
 might rate-limit heavy clients on a per-orconn basis. But this information
 is probably just as sensitive to publish without aggregation or alteration
 first...

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9658#comment:1>
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