[tor-bugs] #23827 [Core Tor/Tor]: Clients/Relays: Use IPv6 Addresses from microdesc consensus

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#23827: Clients/Relays: Use IPv6 Addresses from microdesc consensus
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 Reporter:  teor              |          Owner:  (none)
     Type:  enhancement       |         Status:  new
 Priority:  Medium            |      Milestone:  Tor: 0.3.3.x-final
Component:  Core Tor/Tor      |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:  ipv6, regression  |  Actual Points:
Parent ID:  #20916            |         Points:  0.5
 Reviewer:                    |        Sponsor:
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Comment (by teor):

 The existing code from 0.2.8 will behave the right way once IPv6 addresses
 are moved into the microdesc consensus.

 It checks addresses in this order:
 * routerinfo / descriptor / rewrite bridge address
 * routerstatus / consensus
 * microdesc

 There are some minor changes needed to IPv6-only bootstrap (skipping the
 special case where the IPv6 microdescs come from fallbacks).

 We should probably revise node_get_pref_ipv6_orport() so that it's a bit
 smarter, but let's do that in a different ticket.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23827#comment:2>
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