[tor-bugs] #15515 [Tor]: Don't allow multiple INTRODUCE1s on the same circuit

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#15515: Don't allow multiple INTRODUCE1s on the same circuit
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     Reporter:  asn     |      Owner:
         Type:  defect  |     Status:  needs_review
     Priority:  normal  |  Milestone:  Tor: 0.2.7.x-final
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:
Actual Points:          |  Parent ID:  #15463
       Points:          |
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Comment (by asn):

 some more thoughts:
 16:31 < qwerty1> maybe it would be better to return 0 instead of goto err
 16:31 < qwerty1> if they get a nack they will know to try a new circuit
 16:32 < asn> qwerty1: hm plausible. maybe we should also not waste cells
 for them.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15515#comment:3>
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