[tor-bugs] #17928 [Tor]: Warnings in syslog for wrong permissions on hidden service dir are misleading

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#17928: Warnings in syslog for wrong permissions on hidden service dir are
misleading
---------------------------------+---------------------------------
     Reporter:  throwaway232344  |      Owner:
         Type:  enhancement      |     Status:  new
     Priority:  Very Low         |  Milestone:
    Component:  Tor              |    Version:  Tor: 0.2.7.5
     Severity:  Trivial          |   Keywords:  logging permissions
Actual Points:                   |  Parent ID:
       Points:                   |    Sponsor:
---------------------------------+---------------------------------
 I had the wrong permissions on my hidden service directory which caused
 the tor service to fail starting. Logging doesn't work when the
 permissions are not set properly, so I could only get info from the
 syslog. I see the following errors:

 Dec 24 00:46:28 ArchLaptop tor[7297]: Dec 24 00:46:28.460 [notice] Read
 configuration file "/etc/tor/torrc".
 Dec 24 00:46:28 ArchLaptop tor[7297]: Dec 24 00:46:28.465 [warn]
 Permissions on directory /home/merito/hidden_service/ are too permissive.
 Dec 24 00:46:28 ArchLaptop tor[7297]: Dec 24 00:46:28.465 [warn] Failed to
 parse/validate config: Failed to configure rendezvous options. See logs
 for details.
 Dec 24 00:46:28 ArchLaptop tor[7297]: Dec 24 00:46:28.465 [err] Reading
 config failed--see warnings above.
 Dec 24 00:46:28 ArchLaptop systemd[1]: tor.service: Main process exited,
 code=exited, status=1/FAILURE

 Maybe the log entry on the permissions for the directory should be of
 level err? A warning seems to suggest that this is acceptable, so I tried
 to find an issue in the parsing of the config, thinking there might be
 some kind of complicated problem with configuring rendezvous options.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17928>
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