брелок на резьбу (per-thread keyring)
Имя (Name)
thread-keyring - per-thread keyring
Описание (Description)
The thread keyring is a keyring used to anchor keys on behalf of
a process. It is created only when a thread requests it. The
thread keyring has the name (description) _tid.
A special serial number value, KEY_SPEC_THREAD_KEYRING, is
defined that can be used in lieu of the actual serial number of
the calling thread's thread keyring.
From the keyctl(1) utility, '@t' can be used instead of a numeric
key ID in much the same way, but as keyctl(1) is a program run
after forking, this is of no utility.
Thread keyrings are not inherited across clone(2) and fork(2) and
are cleared by execve(2). A thread keyring is destroyed when the
thread that refers to it terminates.
Initially, a thread does not have a thread keyring. If a thread
doesn't have a thread keyring when it is accessed, then it will
be created if it is to be modified; otherwise the operation fails
with the error ENOKEY.
Смотри также (See also)
keyctl(1), keyctl(3), keyrings(7), persistent-keyring(7),
process-keyring(7), session-keyring(7), user-keyring(7),
user-session-keyring(7)
