1KEYCTL_CHOWN(3) Linux Key Management Calls KEYCTL_CHOWN(3)
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6 keyctl_chown - change the ownership of a key
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9 #include <keyutils.h>
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11 long keyctl_chown(key_serial_t key, uid_t uid, gid_t gid);
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14 keyctl_chown() changes the user and group ownership details of a key.
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16 A setting of -1 on either uid or gid will cause that setting to be
17 ignored.
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19 A process that does not have the SysAdmin capability may not change a
20 key's UID or set the key's GID to a value that does not match the
21 process's GID or one of its group list.
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23 The caller must have setattr permission on a key to be able change its
24 ownership.
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27 On success keyctl_chown() returns 0 . On error, the value -1 will be
28 returned and errno will have been set to an appropriate error.
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31 ENOKEY The specified key does not exist.
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33 EKEYEXPIRED
34 The specified key has expired.
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36 EKEYREVOKED
37 The specified key has been revoked.
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39 EDQUOT Changing the UID to the one specified would run that UID out of
40 quota.
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42 EACCES The key exists, but does not grant setattr permission to the
43 calling process.
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46 This is a library function that can be found in libkeyutils. When
47 linking, -lkeyutils should be specified to the linker.
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50 keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3),
51 keyrings(7), keyutils(7)
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55Linux 4 May 2006 KEYCTL_CHOWN(3)