x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
THREAD KEYRING(7) Kernel key management THREAD KEYRING(7)
NAME
thread keyring - Per-thread keyring
DESCRIPTION
The thread keyring is a keyring used to anchor keys on behalf of a
process. It is only created when a thread requests it.
A special serial number value, KEY_SPEC_THREAD_KEYRING, is defined that
can be used in lieu of the calling thread's thread keyring's actual
serial number.
From the keyctl utility, '@t' can be used instead of a numeric key ID
in much the same way, but as keyctl is a program run after forking,
this is of no utility.
Thread keyrings are not inherited across clone() and are cleared by
execve(). A thread keyring is destroyed when the thread that refers to
it exits.
If a thread doesn't have a thread keyring when it is accessed, then the
thread keyring will be created if the keyring is to be modified, other-
wise error ENOKEY will be issued.
SEE ALSO
keyctl(1),
keyctl(3),
keyrings(7),
process-keyring(7),
session-keyring(7),
user-keyring(7),
user-session-keyring(7)
persistent-keyring(7)
Linux 20 Feb 2014 THREAD KEYRING(7)
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