THREAD-KEYRING(7) - Linux man page online | Overview, conventions, and miscellany

Per-thread keyring.

20 Feb 2014
THREAD-KEYRING(7) Kernel key management THREAD-KEYRING(7)


thread-keyring - Per-thread keyring


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, otherwise error ENOKEY will be issued.


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)
This manual Reference Other manuals
thread-keyring(7) referred by add_key(2) | keyctl(2) | keyrings(7) | keyutils(7) | persistent-keyring(7) | process-keyring(7) | request_key(2) | session-keyring(7) | user-keyring(7) | user-session-keyring(7)
refer to keyctl(1) | keyctl(3) | keyrings(7) | persistent-keyring(7) | process-keyring(7) | session-keyring(7) | user-keyring(7) | user-session-keyring(7)
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