Linux cli command thread-keyring

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command thread-keyring and provides detailed information about the command thread-keyring, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the thread-keyring.

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NAME 🖥️ thread-keyring 🖥️

keyring - per-thread keyring

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.

SEE ALSO

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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