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Re: [tor-bugs] #33235 [Core Tor/Tor]: Proposal 312: 3.2.1. Test Address torrc Option Configurations

#33235: Proposal 312: 3.2.1. Test Address torrc Option Configurations
---------------------------+------------------------------------
 Reporter:  teor           |          Owner:  teor
     Type:  task           |         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:  1
 Reviewer:                 |        Sponsor:  Sponsor55-must
---------------------------+------------------------------------
Description changed by teor:

Old description:

> This ticket depends on IPv6 Addresses in #33233, and automatic IPv6
> ORPorts in #33246.
>
> We should support the following combinations of address literals and
> hostnames:
>
> Legacy configurations:
>   A. No configured Address option
>   B. Address IPv4 literal
>   C. Address hostname (use IPv4 and IPv6 DNS addresses)
>
> New configurations:
>   D. Address IPv6 literal
>   E. Address IPv4 literal / Address IPv6 literal
>   F. Address hostname / Address hostname (use IPv4 and IPv6 DNS
> addresses)
>   G. Address IPv4 literal / Address hostname (only use IPv6 DNS
> addresses)
>   H. Address hostname (only use IPv4 DNS addresses) / Address IPv6
> literal
>
> If we can't find an IPv4 or IPv6 address using the configured Address
> options:
>   * No IPv4: guess IPv4, and its reachability must succeed.
>   * No IPv6: guess IPv6, publish if reachability succeeds.
>
> Combinations A and B are the most common legacy configurations. We want
> to support the following outcomes for all legacy configurations:
>   * automatic upgrades to guessed and reachable IPv6 addresses,
>   * continuing to operate on IPv4 when the IPv6 address can't be guessed,
> and
>   * continuing to operate on IPv4 when the IPv6 address has been guessed,
> but it is unreachable.
>
> See proposal 312, section 3.2.1, testing notes:
> ​https://gitweb.torproject.org/torspec.git/tree/proposals/312-relay-auto-
> ipv6-addr.txt#n270

New description:

 This ticket depends on IPv6 Addresses in #33233, and automatic IPv6
 ORPorts in #33246. These tests should be in CI, or they should be repeated
 after each change.

 We should support the following combinations of address literals and
 hostnames:

 Legacy configurations:
   A. No configured Address option
   B. Address IPv4 literal
   C. Address hostname (use IPv4 and IPv6 DNS addresses)

 New configurations:
   D. Address IPv6 literal
   E. Address IPv4 literal / Address IPv6 literal
   F. Address hostname / Address hostname (use IPv4 and IPv6 DNS addresses)
   G. Address IPv4 literal / Address hostname (only use IPv6 DNS addresses)
   H. Address hostname (only use IPv4 DNS addresses) / Address IPv6 literal

 If we can't find an IPv4 or IPv6 address using the configured Address
 options:
   * No IPv4: guess IPv4, and its reachability must succeed.
   * No IPv6: guess IPv6, publish if reachability succeeds.

 Combinations A and B are the most common legacy configurations. We want to
 support the following outcomes for all legacy configurations:
   * automatic upgrades to guessed and reachable IPv6 addresses,
   * continuing to operate on IPv4 when the IPv6 address can't be guessed,
 and
   * continuing to operate on IPv4 when the IPv6 address has been guessed,
 but it is unreachable.

 See proposal 312, section 3.2.1, testing notes:
 ​https://gitweb.torproject.org/torspec.git/tree/proposals/312-relay-auto-
 ipv6-addr.txt#n270

--

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33235#comment:3>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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