1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* Asymmetric public-key cryptography data parser
3  *
4  * See Documentation/crypto/asymmetric-keys.rst
5  *
6  * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
7  * Written by David Howells (dhowells@redhat.com)
8  */
9 
10 #ifndef _KEYS_ASYMMETRIC_PARSER_H
11 #define _KEYS_ASYMMETRIC_PARSER_H
12 
13 struct key_preparsed_payload;
14 
15 /*
16  * Key data parser.  Called during key instantiation.
17  */
18 struct asymmetric_key_parser {
19 	struct list_head	link;
20 	struct module		*owner;
21 	const char		*name;
22 
23 	/* Attempt to parse a key from the data blob passed to add_key() or
24 	 * keyctl_instantiate().  Should also generate a proposed description
25 	 * that the caller can optionally use for the key.
26 	 *
27 	 * Return EBADMSG if not recognised.
28 	 */
29 	int (*parse)(struct key_preparsed_payload *prep);
30 };
31 
32 extern int register_asymmetric_key_parser(struct asymmetric_key_parser *);
33 extern void unregister_asymmetric_key_parser(struct asymmetric_key_parser *);
34 
35 #endif /* _KEYS_ASYMMETRIC_PARSER_H */
36