[tor-bugs] #9068 [Tor]: Unify reachableaddresses and IPv6 settings

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#9068: Unify reachableaddresses and IPv6 settings
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 Reporter:  nickm            |          Owner:  teor
     Type:  enhancement      |         Status:  accepted
 Priority:  Medium           |      Milestone:  Tor: 0.2.8.x-final
Component:  Tor              |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:  tor-client ipv6  |  Actual Points:
Parent ID:  #17840           |         Points:
  Sponsor:                   |
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Comment (by teor):

 Replying to [comment:13 teor]:
 > Replying to [comment:12 teor]:
 > > Replying to [comment:5 teor]:
 > > >       * Make ClientUseIPv6 1 append "accept [::]/0" to
 Reachable*Addresses
 > > >         * "For backwards-compatibility with IPv4-only
 Reachable*Addresses policies, when ClientUseIPv6 is set to 1,
 Reachable*Addresses will consider all IPv6 addresses reachable by default.
 End Reachable*Addresses with "reject *:*" to only allow explicitly
 specified IPv6 addresses."
 > It turns out my current code is sufficient, as the default fascist
 firewall policy action is ADDR_POLICY_ACCEPTED. See #9067 for details.
 >

 Ugh, options_validate() appends reject *:*. If ClientIPv6 is set and
 Reachable*Addresses looks IPv4-only, I'll warn the user. (See #9067.)

 This ticket can close when #17840 has been thoroughly tested to see if it
 ever uses IPv4/6 when ClientUseIPv4/6 0 is set.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9068#comment:14>
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