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 key.

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

       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 error.

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              The specified key has been revoked.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 -- if you
       know, please contact] If you have a bug report for
       this manual page, send it to  This page was
       obtained from the project's upstream Git repository
       on 2020-08-13.  (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

Linux                            4 May 2006                  KEYCTL_CHOWN(3)

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