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KEYS: Allow expiry time to be set when preparsing a key

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Allow a key type's preparsing routine to set the expiry time for a key.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Sage Weil <sage@redhat.com>
This commit is contained in:
David Howells
2014-07-18 18:56:34 +01:00
parent fc7c70e0b6
commit 7dfa0ca6a9
3 changed files with 16 additions and 3 deletions
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10
Documentation/security/keys.txt
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@@ -1150,20 +1150,24 @@ The structure has a number of fields, some of which are mandatory:
const void *data;
size_t datalen;
size_t quotalen;
time_t expiry;
};
Before calling the method, the caller will fill in data and datalen with
the payload blob parameters; quotalen will be filled in with the default
quota size from the key type and the rest will be cleared.
quota size from the key type; expiry will be set to TIME_T_MAX and the
rest will be cleared.
If a description can be proposed from the payload contents, that should be
attached as a string to the description field. This will be used for the
key description if the caller of add_key() passes NULL or "".
The method can attach anything it likes to type_data[] and payload. These
are merely passed along to the instantiate() or update() operations.
are merely passed along to the instantiate() or update() operations. If
set, the expiry time will be applied to the key if it is instantiated from
this data.
The method should return 0 if success ful or a negative error code
The method should return 0 if successful or a negative error code
otherwise.