[tor-bugs] #27736 [Core Tor/Tor]: Make sure that Tor doesn't build an IPv4 and an IPv6 connection to the same relay

Mon Sep 17 01:58:44 UTC 2018

#27736: Make sure that Tor doesn't build an IPv4 and an IPv6 connection to the same
relay
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     Reporter:  teor          |      Owner:  teor
         Type:  defect        |     Status:  assigned
     Priority:  Medium        |  Milestone:  Tor: unspecified
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-client ipv6
Actual Points:                |  Parent ID:  #17835
       Points:                |   Reviewer:
      Sponsor:                |
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 When we implement #17835, Tor will choose between IPv4 and IPv6 at random.

 I'm pretty sure that we prefer existing connections to the same relay,
 even if the chosen address doesn't match.

 But I need to read the client code to make sure this check is done on
 clients and relays. And I need to run the new code to make sure we're not
 doubling the number of connections that Tor clients make.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27736>
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