Merge tag '5.2-smb3' of git://git.samba.org/sfrench/cifs-2.6
[sfrench/cifs-2.6.git] / include / keys / system_keyring.h
1 /* System keyring containing trusted public keys.
2  *
3  * Copyright (C) 2013 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 _KEYS_SYSTEM_KEYRING_H
13 #define _KEYS_SYSTEM_KEYRING_H
14
15 #include <linux/key.h>
16
17 #ifdef CONFIG_SYSTEM_TRUSTED_KEYRING
18
19 extern int restrict_link_by_builtin_trusted(struct key *keyring,
20                                             const struct key_type *type,
21                                             const union key_payload *payload,
22                                             struct key *restriction_key);
23
24 #else
25 #define restrict_link_by_builtin_trusted restrict_link_reject
26 #endif
27
28 #ifdef CONFIG_SECONDARY_TRUSTED_KEYRING
29 extern int restrict_link_by_builtin_and_secondary_trusted(
30         struct key *keyring,
31         const struct key_type *type,
32         const union key_payload *payload,
33         struct key *restriction_key);
34 #else
35 #define restrict_link_by_builtin_and_secondary_trusted restrict_link_by_builtin_trusted
36 #endif
37
38 #ifdef CONFIG_SYSTEM_BLACKLIST_KEYRING
39 extern int mark_hash_blacklisted(const char *hash);
40 extern int is_hash_blacklisted(const u8 *hash, size_t hash_len,
41                                const char *type);
42 #else
43 static inline int is_hash_blacklisted(const u8 *hash, size_t hash_len,
44                                       const char *type)
45 {
46         return 0;
47 }
48 #endif
49
50 #ifdef CONFIG_IMA_BLACKLIST_KEYRING
51 extern struct key *ima_blacklist_keyring;
52
53 static inline struct key *get_ima_blacklist_keyring(void)
54 {
55         return ima_blacklist_keyring;
56 }
57 #else
58 static inline struct key *get_ima_blacklist_keyring(void)
59 {
60         return NULL;
61 }
62 #endif /* CONFIG_IMA_BLACKLIST_KEYRING */
63
64 #if defined(CONFIG_INTEGRITY_PLATFORM_KEYRING) && \
65         defined(CONFIG_SYSTEM_TRUSTED_KEYRING)
66 extern void __init set_platform_trusted_keys(struct key *keyring);
67 #else
68 static inline void set_platform_trusted_keys(struct key *keyring)
69 {
70 }
71 #endif
72
73 #endif /* _KEYS_SYSTEM_KEYRING_H */