120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* 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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#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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enum blacklist_hash_type {
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/* TBSCertificate hash */
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BLACKLIST_HASH_X509_TBS = 1,
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/* Raw data hash */
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BLACKLIST_HASH_BINARY = 2,
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};
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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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extern __init int load_module_cert(struct key *keyring);
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#else
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#define restrict_link_by_builtin_trusted restrict_link_reject
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static inline __init int load_module_cert(struct key *keyring)
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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_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_INTEGRITY_MACHINE_KEYRING
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extern int restrict_link_by_builtin_secondary_and_machine(
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struct key *dest_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 *restrict_key);
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extern void __init set_machine_trusted_keys(struct key *keyring);
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#else
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#define restrict_link_by_builtin_secondary_and_machine restrict_link_by_builtin_trusted
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static inline void __init set_machine_trusted_keys(struct key *keyring)
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{
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}
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#endif
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extern struct pkcs7_message *pkcs7;
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#ifdef CONFIG_SYSTEM_BLACKLIST_KEYRING
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extern int mark_hash_blacklisted(const u8 *hash, size_t hash_len,
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enum blacklist_hash_type hash_type);
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extern int is_hash_blacklisted(const u8 *hash, size_t hash_len,
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enum blacklist_hash_type hash_type);
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extern int is_binary_blacklisted(const u8 *hash, size_t hash_len);
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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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enum blacklist_hash_type hash_type)
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{
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return 0;
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}
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static inline int is_binary_blacklisted(const u8 *hash, size_t hash_len)
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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_SYSTEM_REVOCATION_LIST
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extern int add_key_to_revocation_list(const char *data, size_t size);
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extern int is_key_on_revocation_list(struct pkcs7_message *pkcs7);
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#else
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static inline int add_key_to_revocation_list(const char *data, size_t size)
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{
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return 0;
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}
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static inline int is_key_on_revocation_list(struct pkcs7_message *pkcs7)
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{
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return -ENOKEY;
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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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#if defined(CONFIG_INTEGRITY_PLATFORM_KEYRING) && \
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defined(CONFIG_SYSTEM_TRUSTED_KEYRING)
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extern void __init set_platform_trusted_keys(struct key *keyring);
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#else
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static inline void set_platform_trusted_keys(struct key *keyring)
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{
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}
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#endif
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#endif /* _KEYS_SYSTEM_KEYRING_H */
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