KEYCTL_REVOKE
Section: Linux Key Management Calls (3)
Updated: 4 May 2006
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NAME
keyctl_revoke - revoke a key
SYNOPSIS
#include <keyutils.h>
long keyctl_revoke(key_serial_t key);
DESCRIPTION
keyctl_revoke()
marks a key as being revoked.
After this operation has been performed on a key, attempts to access it will
meet with error
EKEYREVOKED.
The caller must have
write
permission on a key to be able revoke it.
RETURN VALUE
On success
keyctl_revoke()
returns
0.
On error, the value
-1
will be returned and
errno
will have been set to an appropriate error.
ERRORS
- ENOKEY
-
The specified key does not exist.
- EKEYREVOKED
-
The key has already been revoked.
- EACCES
-
The named key exists, but is not
writable
by the calling process.
LINKING
This is a library function that can be found in
libkeyutils.
When linking,
-lkeyutils
should be specified to the linker.
SEE ALSO
keyctl(1),
add_key(2),
keyctl(2),
request_key(2),
keyctl(3),
keyrings(7),
keyutils(7)