keyctl_chown(3) — Linux manual page


KEYCTL_CHOWN(3)        Linux Key Management Calls        KEYCTL_CHOWN(3)

NAME         top

       keyctl_chown - change the ownership of a key

SYNOPSIS         top

       #include <keyutils.h>

       long keyctl_chown(key_serial_t key, uid_t uid, gid_t gid);

DESCRIPTION         top

       keyctl_chown() changes the user and group ownership details of a

       A setting of -1 on either uid or gid will cause that setting to
       be ignored.

       A process that does not have the SysAdmin capability may not
       change a key's UID or set the key's GID to a value that does not
       match the process's GID or one of its group list.

       The caller must have setattr permission on a key to be able to
       change its ownership.

RETURN VALUE         top

       On success keyctl_chown() returns 0 .  On error, the value -1
       will be returned and errno will have been set to an appropriate

ERRORS         top

       ENOKEY The specified key does not exist.

              The specified key has expired.

              The specified key has been revoked.

       EDQUOT Changing the UID to the one specified would run that UID
              out of quota.

       EACCES The key exists, but does not grant setattr permission to
              the calling process.

LINKING         top

       This is a library function that can be found in libkeyutils.
       When linking, -lkeyutils should 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 the keyutils (key management utilities)
       project.  Information about the project can be found at [unknown
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       bug report for this manual page, send it to  This page was obtained from the
       project's upstream Git repository
       on 2023-12-22.  (At that time, the date of the most recent commit
       that was found in the repository was 2023-03-20.)  If you
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       manual page), send a mail to

Linux                          4 May 2006                KEYCTL_CHOWN(3)

Pages that refer to this page: keyctl(2)keyctl(3)keyrings(7)