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keys: allow the callout data to be passed as a blob rather than a string

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Allow the callout data to be passed as a blob rather than a string for
internal kernel services that call any request_key_*() interface other than
request_key().  request_key() itself still takes a NUL-terminated string.

The functions that change are:

	request_key_with_auxdata()
	request_key_async()
	request_key_async_with_auxdata()

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Paul Moore <paul.moore@hp.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Howells
2008-04-29 01:01:24 -07:00
committed by Linus Torvalds
parent dceba99441
commit 4a38e122e2
7 changed files with 70 additions and 41 deletions
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9
include/linux/key.h
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@@ -208,16 +208,19 @@ extern struct key *request_key(struct key_type *type,
extern struct key *request_key_with_auxdata(struct key_type *type,
const char *description,
const char *callout_info,
const void *callout_info,
size_t callout_len,
void *aux);
extern struct key *request_key_async(struct key_type *type,
const char *description,
const char *callout_info);
const void *callout_info,
size_t callout_len);
extern struct key *request_key_async_with_auxdata(struct key_type *type,
const char *description,
const char *callout_info,
const void *callout_info,
size_t callout_len,
void *aux);
extern int wait_for_key_construction(struct key *key, bool intr);