[tor-bugs] #23507 [Core Tor/Tor]: Add single onion unreachable address algorithm to prop224

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Sep 20 01:58:30 UTC 2017

#23507: Add single onion unreachable address algorithm to prop224
 Reporter:  teor                                 |          Owner:  dgoulet
     Type:  defect                               |         Status:
                                                 |  accepted
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.2.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  doc, tor-spec, prop224, tor-hs,      |  Actual Points:
  single-onion, ipv6                             |
Parent ID:  #23493                               |         Points:  0.5
 Reviewer:                                       |        Sponsor:

Comment (by teor):

 Replying to [comment:1 dgoulet]:
 > I do think we have all this logic in place already *except* for the
 concept of both IPv4 or IPv6 but that is a know limitation for now and
 postponed to 033 (#23502).
 > Can you confirm it?
 > ...
 > Again, you'll notice that the IPv6 problem in #23502 aren't addressed
 but apart from that, is the algorithm you describe followed?

 No, it's broken in several places in (single onion service
 descriptor link specifiers, and fallback 3-hop connections for intro and
 rend). That's why the test doesn't work.

 For fixes for 0.3.2 and a plan for 0.3.3, see

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23507#comment:5>
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