KEYCTL_SESSION_TO_PARENT(3)nux Key Management CallsYCTL_SESSION_TO_PARENT(3)
keyctl_session_to_parent - set the parent process's session keyring
#include <keyutils.h> long keyctl_session_to_parent();
keyctl_session_to_parent() changes the session keyring to which the calling process's parent subscribes to be the that of the calling process. The keyring must have link permission available to the calling process, the parent process must have the same UIDs/GIDs as the calling process, and the LSM must not reject the replacement. Furthermore, this may not be used to affect init or a kernel thread. Note that the replacement will not take immediate effect upon the parent process, but will rather be deferred to the next time it returns to userspace from kernel space.
On success keyctl_session_to_parent() returns 0. On error, the value -1 will be returned and errno will have been set to an appropriate error.
ENOMEM Insufficient memory to create a key. EPERM The credentials of the parent don't match those of the caller. EACCES The named keyring exists, but is not linkable by the calling process.
This is a library function that can be found in libkeyutils. When linking, -lkeyutils should be specified to the linker.
keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3), keyrings(7), keyutils(7), session-keyring(7), user-session-keyring(7)
This page is part of the keyutils (key management utilities) project. Information about the project can be found at [unknown -- if you know, please contact email@example.com] If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨http://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git⟩ on 2020-07-14. (At that time, the date of the most recent commit that was found in the repository was 2020-07-07.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com Linux 20 Feb 2014 KEYCTL_SESSION_TO_PARENT(3)
Pages that refer to this page: keyctl(2), keyctl(3), session-keyring(7)