[tor-bugs] #24344 [Metrics/Consensus Health]: Add an "UnreachableIPv6" flag to relays in consensus health

[Tor Bug Tracker & Wiki]

#24344: Add an "UnreachableIPv6" flag to relays in consensus health
------------------------------------------+------------------
     Reporter:  teor                      |      Owner:  tom
         Type:  enhancement               |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Metrics/Consensus Health  |    Version:
     Severity:  Normal                    |   Keywords:  IPv6
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+------------------
 Split off #24287.

 If you ever have access to relay descriptors in consensus-health, a
 feature like OnionOO's #21637 (which will show unreachable addresses on
 RelaySearch/Atlas) would be great:

 If a relay declares an IPv6 address in its descriptor (in an "a" line),
 but an authority doesn't vote for it, that relay should get the
 UnreachableIPv6 pseudo-flag from that authority.

 If an authority's vote contains any "a" lines with IPv6 addresses, the
 authority should be marked as knowing the "ReachableIPv6" and
 "UnreachableIPv6" pseudo-flags.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24344>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online