[tor-bugs] #33247 [Core Tor/Tor]: Prop 312: 3.2.7. Publish IPv4 Descriptor on Guessed IPv6 Reachability Failure

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#33247: Prop 312: 3.2.7. Publish IPv4 Descriptor on Guessed IPv6 Reachability
Failure
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 Reporter:  teor           |          Owner:  teor
     Type:  enhancement    |         Status:  assigned
 Priority:  Medium         |      Milestone:  Tor: 0.4.4.x-final
Component:  Core Tor/Tor   |        Version:
 Severity:  Normal         |     Resolution:
 Keywords:  prop312, ipv6  |  Actual Points:
Parent ID:  #33049         |         Points:  0.5
 Reviewer:                 |        Sponsor:  Sponsor55-must
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Description changed by teor:

Old description:

> As implemented in ticket #33221, if both reachability checks succeed,
> relays should publish their IPv4 and IPv6 ORPorts in their descriptor.
>
> If only the IPv4 ORPort check succeeds, and the IPv6 address was guessed
> (rather than being explicitly configured), then relays should:
>   * publish their IPv4 ORPort in their descriptor,
>   * stop publishing their IPv6 ORPort in their descriptor, and
>   * log a notice about the failed IPv6 ORPort reachability check.
>
> See proposal 312, section 3.2.7, Guessed IPv6 Reachability Failure part:
> https://gitweb.torproject.org/torspec.git/tree/proposals/312-relay-auto-
> ipv6-addr.txt#n567

New description:

 Depends on guessing IPv6 addresses in #33238, and disabling descriptor
 publication on reachability failures in #33223.

 If both reachability checks succeed, relays should publish their IPv4 and
 IPv6 ORPorts in their descriptor.

 If only the IPv4 ORPort check succeeds, and the IPv6 address was guessed
 (rather than being explicitly configured), then relays should:
   * publish their IPv4 ORPort in their descriptor,
   * stop publishing their IPv6 ORPort in their descriptor, and
   * log a notice about the failed IPv6 ORPort reachability check.

 See proposal 312, section 3.2.7, Guessed IPv6 Reachability Failure part:
 https://gitweb.torproject.org/torspec.git/tree/proposals/312-relay-auto-
 ipv6-addr.txt#n567

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33247#comment:1>
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