1 /* PKCS#7 crypto data parser
2  *
3  * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells (dhowells@redhat.com)
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public Licence
8  * as published by the Free Software Foundation; either version
9  * 2 of the Licence, or (at your option) any later version.
10  */
11 
12 #ifndef _CRYPTO_PKCS7_H
13 #define _CRYPTO_PKCS7_H
14 
15 #include <linux/verification.h>
16 #include <crypto/public_key.h>
17 
18 struct key;
19 struct pkcs7_message;
20 
21 /*
22  * pkcs7_parser.c
23  */
24 extern struct pkcs7_message *pkcs7_parse_message(const void *data,
25 						 size_t datalen);
26 extern void pkcs7_free_message(struct pkcs7_message *pkcs7);
27 
28 extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
29 				  const void **_data, size_t *_datalen,
30 				  size_t *_headerlen);
31 
32 /*
33  * pkcs7_trust.c
34  */
35 extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
36 				struct key *trust_keyring);
37 
38 /*
39  * pkcs7_verify.c
40  */
41 extern int pkcs7_verify(struct pkcs7_message *pkcs7,
42 			enum key_being_used_for usage);
43 
44 extern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
45 				      const void *data, size_t datalen);
46 
47 #endif /* _CRYPTO_PKCS7_H */
48