[tor-bugs] #21967 [Core Tor/Tor]: obfs4proxy not killed when unused
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Tue Apr 18 02:35:18 UTC 2017
#21967: obfs4proxy not killed when unused
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Reporter: asn | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.3.1.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: tor-pt | Actual Points:
Parent ID: | Points: 1.5
Reviewer: | Sponsor:
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Comment (by arma):
Wugh. There's some sort of subtlety in pt_configure_remaining_proxies()
where it restarts managed proxies sometimes, and it might implicitly drop
transports it doesn't know it needs, or something. See the call to
sweep_transport_list() in proxy_prepare_for_restart(). But by then it's
too late because pt_kickstart_proxy set mp->marked_for_removal to 0 and
nothing ever marks it again.
(Whoever decided that transport_t should have a marked_for_removal flag,
and managed_proxy_t should have an identically named marked_for_removal
flag, is not a nice person.)
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21967#comment:8>
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