[tor-bugs] #18357 [Core Tor/Tor]: HiddenServicePort IPv6 broken (was: HiddenServicePort IPv6 broken on FreeBSD)

[Tor Bug Tracker & Wiki]

#18357: HiddenServicePort IPv6 broken
--------------------------+------------------------------------
 Reporter:  sega01        |          Owner:
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.2.9.x-final
Component:  Core Tor/Tor  |        Version:  Tor: 0.2.6.10
 Severity:  Normal        |     Resolution:
 Keywords:  ipv6, tor-hs  |  Actual Points:
Parent ID:                |         Points:  0.5
 Reviewer:                |        Sponsor:  SponsorR-can
--------------------------+------------------------------------
Changes (by teor):

 * milestone:  Tor: 0.2.??? => Tor: 0.2.9.x-final
 * points:  small/medium => 0.5


Comment:

 This doesn't work on any tor version I've tried on OS X or Linux.
 I suspect IPv6 HiddenServicePort was never implemented correctly.

 I can confirm that IPv6 HiddenServicePort doesn't work on 0.2.8.7 when the
 backend server is:
 {{{
 nc -l ::1 1234
 }}}

 But it does work when the HiddenServicePort is explicit or implicit IPv4
 127.0.0.1, and the backend server is:
 {{{
 nc -l 127.0.0.1 1234
 }}}

 I also tested this with Tor 0.2.7.6, and it doesn't work.
 I suspect it's likely this has never worked as documented, and that a good
 workaround is to use an IPv4 or unix socket HiddenServicePort.

 We should add a chutney test for this when we fix it, so it doesn't break
 and remain unnoticed, see #20142.

 Moving to 0.2.9 as the duplicate #20127 was in 0.2.9.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18357#comment:6>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online