linux-kernel - Re: ext4 encrypted dir becomes sickish after 4-5 days

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Date:   Wed, 14 Sep 2016 19:24:21 +0200
From:   Toralf Förster <toralf.foerster@....de>
To:     Theodore Ts'o <tytso@....edu>, linux-ext4@...r.kernel.org,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: ext4 encrypted dir becomes sickish after 4-5 days

On 09/14/2016 02:49 PM, Theodore Ts'o wrote:
> What does "keyctl list @s" display?  And what hapens if you try to
> rerun the add_key command?  You should see something like this:

# keyctl list @s
1 key in keyring:
 84804552: --alswrv     0 65534 keyring: _uid.0

A rerun of add_key won't help, the output is:

Enter passphrase (echo disabled):
Added key with descriptor [d3b38182555bb6e2]
Added key with descriptor [9d459d03fd3b3adb]
Key with descriptor [9d459d03fd3b3adb] applied to /var/lib/tor.

Accessing the directory works for the user /which has not a login shell):
ssh tfoerste@...fox 'sudo -u tor touch /var/lib/tor/foo.bar'

And it doesn't work run add_key for user root.

Furthermore it starts to fail even after 1 or 2 days.
-- 
Toralf
PGP: C4EACDDE 0076E94E, OTR: 420E74C8 30246EE7