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Re: [tor-bugs] #26136 [Core Tor/Tor]: DirPort reachability test inconsistency when only "DirPort x.x.x.x:x NoAdvertise" configured
#26136: DirPort reachability test inconsistency when only "DirPort x.x.x.x:x
NoAdvertise" configured
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Reporter: starlight | Owner: (none)
Type: defect | Status:
| needs_information
Priority: Medium | Milestone: Tor:
| 0.3.4.x-final
Component: Core Tor/Tor | Version: Tor:
| 0.3.4.1-alpha
Severity: Normal | Resolution:
Keywords: regression-maybe, 034-must-maybe | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by starlight):
A quick review of 0.3.4 code reveals the bug appears subtle, and likely to
be present in prior releases.
The flag DirPort_set in or.h determines whether DirPort self-checking
should occur. The test-circuit launch is attempted but results in "exit
point is not known" because the NoAdvertise address is a non-routable
address and/or because it does not match the relay descriptor public
addresses, is not present in the descriptor.
DirPort_set does not consider NoAdvertise. For this to work correctly
some logic examining NoAdvertise is required and none is evident.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26136#comment:5>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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