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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | LINKING | SEE ALSO | COLOPHON |
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KEYCTL_LINK(3) Linux Key Management Calls KEYCTL_LINK(3)
keyctl_link, keyctl_unlink - link/unlink a key to/from a keyring
#include <keyutils.h>
long keyctl_link(key_serial_t key, key_serial_t keyring);
long keyctl_unlink(key_serial_t key, key_serial_t keyring);
keyctl_link() creates a link from keyring to key, displacing any
link to another key of the same type and description in that
keyring if one exists.
keyctl_unlink() removes the link from keyring to key if it
exists.
The caller must have write permission on a keyring to be able to
create or remove links in it.
The caller must have link permission on a key to be able to
create a link to it.
On success keyctl_link() and keyctl_unlink() return 0. On error,
the value -1 will be returned and errno will have been set to an
appropriate error.
ENOKEY The key or the keyring specified are invalid.
EKEYEXPIRED
The key or the keyring specified have expired.
EKEYREVOKED
The key or the keyring specified have been revoked.
EACCES The keyring exists, but is not writable by the calling
process.
For keyctl_link() only:
ENOMEM Insufficient memory to expand the keyring
EDQUOT Expanding the keyring would exceed the keyring owner's
quota.
EACCES The key 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)
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 2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2023-03-20.) 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 4 May 2006 KEYCTL_LINK(3)
Pages that refer to this page: keyctl(2), keyctl(3), keyrings(7)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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