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aaf66c8838
The first argument to the restrict_link_func_t functions was a keyring pointer. These functions are called by the key subsystem with this argument set to the destination keyring, but restrict_link_by_signature expects a pointer to the relevant trusted keyring. Restrict functions may need something other than a single struct key pointer to allow or reject key linkage, so the data used to make that decision (such as the trust keyring) is moved to a new, fourth argument. The first argument is now always the destination keyring. Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/* System keyring containing trusted public keys.
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*
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* Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#ifndef _KEYS_SYSTEM_KEYRING_H
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#define _KEYS_SYSTEM_KEYRING_H
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#include <linux/key.h>
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#ifdef CONFIG_SYSTEM_TRUSTED_KEYRING
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extern int restrict_link_by_builtin_trusted(struct key *keyring,
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const struct key_type *type,
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const union key_payload *payload,
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struct key *restriction_key);
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#else
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#define restrict_link_by_builtin_trusted restrict_link_reject
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#endif
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#ifdef CONFIG_SECONDARY_TRUSTED_KEYRING
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extern int restrict_link_by_builtin_and_secondary_trusted(
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struct key *keyring,
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const struct key_type *type,
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const union key_payload *payload,
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struct key *restriction_key);
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#else
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#define restrict_link_by_builtin_and_secondary_trusted restrict_link_by_builtin_trusted
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#endif
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#ifdef CONFIG_SYSTEM_BLACKLIST_KEYRING
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extern int mark_hash_blacklisted(const char *hash);
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extern int is_hash_blacklisted(const u8 *hash, size_t hash_len,
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const char *type);
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#else
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static inline int is_hash_blacklisted(const u8 *hash, size_t hash_len,
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const char *type)
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{
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return 0;
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}
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#endif
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#ifdef CONFIG_IMA_BLACKLIST_KEYRING
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extern struct key *ima_blacklist_keyring;
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static inline struct key *get_ima_blacklist_keyring(void)
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{
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return ima_blacklist_keyring;
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}
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#else
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static inline struct key *get_ima_blacklist_keyring(void)
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{
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return NULL;
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}
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#endif /* CONFIG_IMA_BLACKLIST_KEYRING */
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#endif /* _KEYS_SYSTEM_KEYRING_H */
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