1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* PKCS#7 crypto data parser
3 *
4 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8#ifndef _CRYPTO_PKCS7_H
9#define _CRYPTO_PKCS7_H
10
11#include <linux/verification.h>
12#include <linux/hash_info.h>
13#include <crypto/public_key.h>
14
15struct key;
16struct pkcs7_message;
17
18/*
19 * pkcs7_parser.c
20 */
21extern struct pkcs7_message *pkcs7_parse_message(const void *data,
22 size_t datalen);
23extern void pkcs7_free_message(struct pkcs7_message *pkcs7);
24
25extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
26 const void **_data, size_t *_datalen,
27 size_t *_headerlen);
28
29/*
30 * pkcs7_trust.c
31 */
32extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
33 struct key *trust_keyring);
34
35/*
36 * pkcs7_verify.c
37 */
38extern int pkcs7_verify(struct pkcs7_message *pkcs7,
39 enum key_being_used_for usage);
40
41extern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
42 const void *data, size_t datalen);
43
44extern int pkcs7_get_digest(struct pkcs7_message *pkcs7, const u8 **buf,
45 u32 *len, enum hash_algo *hash_algo);
46
47#endif /* _CRYPTO_PKCS7_H */
48