[tor-bugs] #27284 [Core Tor/Tor]: Check IPv6 exit policies on microdescs

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#27284: Check IPv6 exit policies on microdescs
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  neel
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.4.2.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.2.3.1-alpha
 Severity:  Normal                               |     Resolution:
 Keywords:  consider-backport-after-042-stable,  |  Actual Points:
  029-backport, 035-backport, 040-backport,      |
  041-backport, 042-backport, ipv6,              |
  040-deferred-20190220, teor-                   |
  unreached-2019-03-08                           |
Parent ID:  #27248                               |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by teor):

 Replying to [comment:16 neel]:
 > The statement `policy == NULL` exists because a pure `!policy` doesn't
 work (I believe it's a pointer) and fails the existing tests. It may also
 be a bug.
 >
 > I will add tests tomorrow and then set as needs review.

 policy == NULL  and !policy should be equivalent?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27284#comment:18>
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