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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | LINKING | SEE ALSO | COLOPHON |
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 man-pages@man7.org] If you have a bug report for
this manual page, send it to keyrings@linux-nfs.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 2017-07-05. 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 man-pages@man7.org
Linux 20 Feb 2014 KEYCTL_SESSION_TO_PARENT(3)
Pages that refer to this page: keyctl(2), keyctl(3), session-keyring(7)