[tor-bugs] #29570 [Core Tor/Tor]: Enforce mutually exclusive logic for IPv6 ORPort flags

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#29570: Enforce mutually exclusive logic for IPv6 ORPort flags
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 Reporter:  s7r                            |          Owner:  (none)
     Type:  defect                         |         Status:  new
 Priority:  Medium                         |      Milestone:  Tor:
                                           |  unspecified
Component:  Core Tor/Tor                   |        Version:  Tor:
                                           |  unspecified
 Severity:  Normal                         |     Resolution:
 Keywords:  tor-relay, ipv6, reachability  |  Actual Points:
Parent ID:                                 |         Points:
 Reviewer:                                 |        Sponsor:
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Comment (by s7r):

 Actually I am not sure if the correct action here is to just correct the
 descriptor and continue with a warning in logs (in cases of dual stack
 relays where v4 is correctly set-up, but just v6 is not configured
 properly) or better '''terminate and exit''' until everything is either
 corrected, either removed entirely from the config.

 Thinking on the really long term when IPv6 will take over or at least be
 mandatory in Tor, so we don't have to go back to this. After all, it's
 broken config / setup in terms of relay ports, it's not bad to exit on
 mistakes at such important config parameters.

 Let's see what others think about it.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29570#comment:2>
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