keyctl_set_timeout() sets the expiration timer on a key to timeout
seconds into the future. Setting timeout to zero cancels the
expiration, assuming the key hasn't already expired.
When the key expires, further attempts to access it will be met with
The caller must have setattr permission on a key to be able change
its permissions mask.
ENOKEY The specified key does not exist.
The specified key has already expired.
The specified key has been revoked.
EACCES The named key exists, but does not grant setattr permission to
the calling process.
This page is part of the keyutils (key management utilities) project.
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Linux 4 May 2006 KEYCTL_SET_TIMEOUT(3)