[tor-bugs] #21346 [Core Tor/Tor]: Clients with NoIPv4Traffic should only choose IPv6-supporting Exits

[Tor Bug Tracker & Wiki]

#21346: Clients with NoIPv4Traffic should only choose IPv6-supporting Exits
------------------------------+--------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.1.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  ipv6
Actual Points:                |  Parent ID:  #21311
       Points:  0.5           |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 Tor logs a warning when this happens in
 connection_ap_get_begincell_flags(), but it should actually fail.

 Earlier in the process, it should choose an IPv6-supporting exit when
 NoIPv4Traffic is set (and choose an IPv4-supporting exit when NoIPv6
 traffic is set).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21346>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online