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KEYS: Add an iovec version of KEYCTL_INSTANTIATE

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Add a keyctl op (KEYCTL_INSTANTIATE_IOV) that is like KEYCTL_INSTANTIATE, but
takes an iovec array and concatenates the data in-kernel into one buffer.
Since the KEYCTL_INSTANTIATE copies the data anyway, this isn't too much of a
problem.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
David Howells 2011-03-07 15:06:20 +00:00 • committed by James Morris
parent fdd1b94581
commit ee009e4a0d
6 changed files with 167 additions and 11 deletions
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1
include/linux/keyctl.h
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@ -54,5 +54,6 @@
#define KEYCTL_GET_SECURITY 17 /* get key security label */
#define KEYCTL_SESSION_TO_PARENT 18 /* apply session keyring to parent process */
#define KEYCTL_REJECT 19 /* reject a partially constructed key */
#define KEYCTL_INSTANTIATE_IOV 20 /* instantiate a partially constructed key */
#endif /* _LINUX_KEYCTL_H */