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Re: [tor-bugs] #24546 [Core Tor/Tor]: Use tor_addr_is_v4() rather than family, or reject all v6-mapped IPv4 addresses

#24546: Use tor_addr_is_v4() rather than family, or reject all v6-mapped IPv4
addresses
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  (none)
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-dirauth, ipv6,                   |  Actual Points:
  033-triage-20180320, 033-removed-20180320      |
Parent ID:                                       |         Points:  1
 Reviewer:                                       |        Sponsor:
                                                 |  SponsorV-can
-------------------------------------------------+-------------------------

Comment (by teor):

 Replying to [comment:1 teor]:
 > We should also audit all uses of tor_addr_compare(a1, a2, CMP_EXACT) to
 see if they should be CMP_SEMANTIC instead.
 >
 > The current uses of CMP_SEMANTIC seem reasonable, but not essential:
 they code would still work if we rejected mapped addresses and did exact
 comparisons instead.

 I split this off into #26436.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24546#comment:7>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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