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[PATCH] Keys: Allow in-kernel key requestor to pass auxiliary data to upcaller

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The proposed NFS key type uses its own method of passing key requests to
userspace (upcalling) rather than invoking /sbin/request-key.  This is
because the responsible userspace daemon should already be running and will
be contacted through rpc_pipefs.

This patch permits the NFS filesystem to pass auxiliary data to the upcall
operation (struct key_type::request_key) so that the upcaller can use a
pre-existing communications channel more easily.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-By: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
David Howells
2006-06-29 02:24:28 -07:00
committed by Linus Torvalds
parent 94583779e6
commit 4e54f08543
6 changed files with 108 additions and 30 deletions
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1
security/keys/internal.h
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@ -99,6 +99,7 @@ extern int install_process_keyring(struct task_struct *tsk);
extern struct key *request_key_and_link(struct key_type *type,
const char *description,
const char *callout_info,
void *aux,
struct key *dest_keyring,
unsigned long flags);