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keyctl_move(3) — Linux manual page

KEYCTL_MOVE(3)          Linux Key Management CallsKEYCTL_MOVE(3)

NAME        top

       keyctl_move - Move a key between keyrings

SYNOPSIS        top

#include <keyutils.h>long keyctl_move(key_serial_tkey, key_serial_tfrom_keyring,key_serial_tto_keyring, unsigned intflags);

DESCRIPTION        top

keyctl_move() atomically unlinkskey fromfrom_keyring and links       it intoto_keyring in a single operation.  Depending on the flags       set, a link to any matching key in to_keyring may get displaced.flags is a bitwise-OR of zero or more of the following flags:KEYCTL_MOVE_EXCL              If there's a matching key in to_keyring, don't displace it              but rather return an error.       The caller must havewritepermission on both keyring to be able       to create or remove links in them.       The caller must havelinkpermission on a key to be able to create       a new link to it.

RETURN VALUE        top

       On successkeyctl_move() return0.  On error, the value-1will be       returned anderrno will have been set to an appropriate error.

ERRORS        top

ENOKEYThe key or one of the keyrings specified are invalid.ENOKEYA key with the same type and description is present in              to_keyring and KEYCTL_MOVE_EXCL is set.EKEYEXPIRED              The key or one of the keyrings specified have expired.EKEYREVOKED              The key or one of the keyrings specified have been revoked.EACCESThe key exists, but is notlinkableby the calling process.EACCESThe keyrings exist, but are notwritableby the calling              process.ENOMEMInsufficient memory to effect the changes.EDQUOTExpanding to_keyring would exceed the keyring owner's              quota.

LINKING        top

       This is a library function that can be found inlibkeyutils.  When       linking,-lkeyutilsshould be specified to the linker.

SEE ALSO        top

keyctl(1),add_key(2),keyctl(2),request_key(2),keyctl(3),keyrings(7),keyutils(7)

COLOPHON        top

       This page is part of thekeyutils (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 2025-08-11.  (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 isnot part of the original manual page), send a       mail to man-pages@man7.orgLinux                          29 May 2019KEYCTL_MOVE(3)

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