[tor-bugs] #29084 [Core Tor/Tor]: WTF-PAD: Test and improve circuit RTT measurement

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#29084: WTF-PAD: Test and improve circuit RTT measurement
-------------------------+-------------------------------------------------
     Reporter:  asn      |      Owner:  (none)
         Type:  defect   |     Status:  new
     Priority:  Medium   |  Milestone:  Tor: 0.4.0.x-final
    Component:  Core     |    Version:
  Tor/Tor                |   Keywords:  wtf-pad, tor-relay, tor-cell,
     Severity:  Normal   |  padding
Actual Points:           |  Parent ID:  #28632
       Points:           |   Reviewer:
      Sponsor:           |
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 From TODO file:
 {{{
   - Circuit RTT measurement will break on var_cell/EXTEND2 cells
     - Are there any heuristics we can use here?
       - If RELAY_EARLY is only for the first cell of an EXTEND2 series,
         we can use that. But the proposal currently says MAY, but not MUST
         for this behavior.
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29084>
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