Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* Signature verification
3 *
4 * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8#ifndef _LINUX_VERIFICATION_H
9#define _LINUX_VERIFICATION_H
10
11/*
12 * Indicate that both builtin trusted keys and secondary trusted keys
13 * should be used.
14 */
15#define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL)
16#define VERIFY_USE_PLATFORM_KEYRING ((struct key *)2UL)
17
18/*
19 * The use to which an asymmetric key is being put.
20 */
21enum key_being_used_for {
22 VERIFYING_MODULE_SIGNATURE,
23 VERIFYING_FIRMWARE_SIGNATURE,
24 VERIFYING_KEXEC_PE_SIGNATURE,
25 VERIFYING_KEY_SIGNATURE,
26 VERIFYING_KEY_SELF_SIGNATURE,
27 VERIFYING_UNSPECIFIED_SIGNATURE,
28 NR__KEY_BEING_USED_FOR
29};
30extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];
31
32#ifdef CONFIG_SYSTEM_DATA_VERIFICATION
33
34struct key;
35
36extern int verify_pkcs7_signature(const void *data, size_t len,
37 const void *raw_pkcs7, size_t pkcs7_len,
38 struct key *trusted_keys,
39 enum key_being_used_for usage,
40 int (*view_content)(void *ctx,
41 const void *data, size_t len,
42 size_t asn1hdrlen),
43 void *ctx);
44
45#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
46extern int verify_pefile_signature(const void *pebuf, unsigned pelen,
47 struct key *trusted_keys,
48 enum key_being_used_for usage);
49#endif
50
51#endif /* CONFIG_SYSTEM_DATA_VERIFICATION */
52#endif /* _LINUX_VERIFY_PEFILE_H */