/* SPDX-License-Identifier: GPL-2.0-or-later *//* System keyring containing trusted public keys. * * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #ifndef _KEYS_SYSTEM_KEYRING_H#define _KEYS_SYSTEM_KEYRING_H #include <linux/key.h> enum blacklist_hash_type {	/* TBSCertificate hash */	BLACKLIST_HASH_X509_TBS = 1,	/* Raw data hash */	BLACKLIST_HASH_BINARY = 2,}; #ifdef CONFIG_SYSTEM_TRUSTED_KEYRING extern int restrict_link_by_builtin_trusted(struct key *keyring,					    const struct key_type *type,					    const union key_payload *payload,					    struct key *restriction_key);int restrict_link_by_digsig_builtin(struct key *dest_keyring,				    const struct key_type *type,				    const union key_payload *payload,				    struct key *restriction_key);extern __init int load_module_cert(struct key *keyring); #else#define restrict_link_by_builtin_trusted restrict_link_reject#define restrict_link_by_digsig_builtin restrict_link_reject static inline __init int load_module_cert(struct key *keyring){	return 0;} #endif #ifdef CONFIG_SECONDARY_TRUSTED_KEYRINGextern int restrict_link_by_builtin_and_secondary_trusted(	struct key *keyring,	const struct key_type *type,	const union key_payload *payload,	struct key *restriction_key);int restrict_link_by_digsig_builtin_and_secondary(struct key *keyring,						  const struct key_type *type,						  const union key_payload *payload,						  struct key *restriction_key);void __init add_to_secondary_keyring(const char *source, const void *data, size_t len);#else#define restrict_link_by_builtin_and_secondary_trusted restrict_link_by_builtin_trusted#define restrict_link_by_digsig_builtin_and_secondary restrict_link_by_digsig_builtinstatic inline void __init add_to_secondary_keyring(const char *source, const void *data, size_t len){}#endif #ifdef CONFIG_INTEGRITY_MACHINE_KEYRINGextern int restrict_link_by_builtin_secondary_and_machine(	struct key *dest_keyring,	const struct key_type *type,	const union key_payload *payload,	struct key *restrict_key);extern void __init set_machine_trusted_keys(struct key *keyring);#else#define restrict_link_by_builtin_secondary_and_machine restrict_link_by_builtin_trustedstatic inline void __init set_machine_trusted_keys(struct key *keyring){}#endif #ifdef CONFIG_SYSTEM_BLACKLIST_KEYRINGextern int mark_hash_blacklisted(const u8 *hash, size_t hash_len,			       enum blacklist_hash_type hash_type);extern int is_hash_blacklisted(const u8 *hash, size_t hash_len,			       enum blacklist_hash_type hash_type);extern int is_binary_blacklisted(const u8 *hash, size_t hash_len);#elsestatic inline int is_hash_blacklisted(const u8 *hash, size_t hash_len,				      enum blacklist_hash_type hash_type){	return 0;} static inline int is_binary_blacklisted(const u8 *hash, size_t hash_len){	return 0;}#endif struct pkcs7_message;#ifdef CONFIG_SYSTEM_REVOCATION_LISTextern int add_key_to_revocation_list(const char *data, size_t size);extern int is_key_on_revocation_list(struct pkcs7_message *pkcs7);#elsestatic inline int add_key_to_revocation_list(const char *data, size_t size){	return 0;}static inline int is_key_on_revocation_list(struct pkcs7_message *pkcs7){	return -ENOKEY;}#endif #ifdef CONFIG_IMA_BLACKLIST_KEYRINGextern struct key *ima_blacklist_keyring; static inline struct key *get_ima_blacklist_keyring(void){	return ima_blacklist_keyring;}#elsestatic inline struct key *get_ima_blacklist_keyring(void){	return NULL;}#endif /* CONFIG_IMA_BLACKLIST_KEYRING */ #if defined(CONFIG_INTEGRITY_PLATFORM_KEYRING) && \	defined(CONFIG_SYSTEM_TRUSTED_KEYRING)extern void __init set_platform_trusted_keys(struct key *keyring);#elsestatic inline void set_platform_trusted_keys(struct key *keyring){}#endif #endif /* _KEYS_SYSTEM_KEYRING_H */