xref: /linux/include/crypto/pkcs7.h (revision 99db4435)
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 <crypto/public_key.h>
16 
17 struct key;
18 struct pkcs7_message;
19 
20 /*
21  * pkcs7_parser.c
22  */
23 extern struct pkcs7_message *pkcs7_parse_message(const void *data,
24 						 size_t datalen);
25 extern void pkcs7_free_message(struct pkcs7_message *pkcs7);
26 
27 extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
28 				  const void **_data, size_t *_datalen,
29 				  bool want_wrapper);
30 
31 /*
32  * pkcs7_trust.c
33  */
34 extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
35 				struct key *trust_keyring,
36 				bool *_trusted);
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