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Re: [tor-bugs] #9067 [Tor]: Choice of address and match of fascist_firewall_allows_address* need to consider ipv6



#9067: Choice of address and match of fascist_firewall_allows_address* need to
consider ipv6
-------------------------------------------+-------------------------------
 Reporter:  nickm                          |          Owner:  teor
     Type:  defect                         |         Status:  accepted
 Priority:  Medium                         |      Milestone:  Tor:
Component:  Tor                            |  0.2.8.x-final
 Severity:  Normal                         |        Version:
 Keywords:  tor-client, 025-triaged, ipv6  |     Resolution:
Parent ID:  #17840                         |  Actual Points:
  Sponsor:                                 |         Points:
-------------------------------------------+-------------------------------

Comment (by teor):

 Replying to [comment:5 nickm]:
 > Deferring to 0.2.6; fixing it has just as much risk for causing false
 positives.  (For instance, if you have a reachableaddresses policy that is
 accurate for IPv4, but you have no idea what IPv6 stuff your firewall
 blocks.)

 The only risk of false positives is if the policy contains "reject *".
 (And I can't see any way we can work around that.)

 Otherwise, fascist_firewall_allows_address_* eventually calls
 compare_known_tor_addr_to_addr_policy, where the default action is
 ADDR_POLICY_ACCEPTED.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9067#comment:13>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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