[tor-bugs] #18604 [Tor]: Deleting an ephemeral service doesn't always destroy intro circuits
Tor Bug Tracker & Wiki
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Mon Mar 21 13:17:57 UTC 2016
#18604: Deleting an ephemeral service doesn't always destroy intro circuits
-------------------------+--------------------
Reporter: special | Owner:
Type: defect | Status: new
Priority: Medium | Milestone:
Component: Tor | Version:
Severity: Normal | Keywords: tor-hs
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
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On tor 0.2.7.6 with hidden services configured via ADD_ONION, this warning
appeared several times:
{{{
log_warn(LD_REND, "Unrecognized service ID %s on introduction circuit
%u.",
serviceid, (unsigned)circuit->base_.n_circ_id);
}}}
This happens when an introduction circuit finishes building and the
service it was built for no longer exists.
When removing an ephemeral service, we close all S_ESTABLISH_INTRO or
S_INTRO circuits that are CIRCUIT_STATE_OPEN. I suspect this warning
happens when the service is removed before an introduction circuit reaches
STATE_OPEN.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18604>
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