62 static int fscrypt_key_instantiate(struct key *key,  in fscrypt_key_instantiate()  argument
65 	key->payload.data[0] = (struct fscrypt_master_key *)prep->data;  in fscrypt_key_instantiate()
69 static void fscrypt_key_destroy(struct key *key)  in fscrypt_key_destroy()  argument
71 	free_master_key(key->payload.data[0]);  in fscrypt_key_destroy()
74 static void fscrypt_key_describe(const struct key *key, struct seq_file *m)  in fscrypt_key_describe()  argument
76 	seq_puts(m, key->description);  in fscrypt_key_describe()
78 	if (key_is_positive(key)) {  in fscrypt_key_describe()
79 		const struct fscrypt_master_key *mk = key->payload.data[0];  in fscrypt_key_describe()
100 static int fscrypt_user_key_instantiate(struct key *key,  in fscrypt_user_key_instantiate()  argument
108 	return key_payload_reserve(key, FSCRYPT_MAX_KEY_SIZE);  in fscrypt_user_key_instantiate()
111 static void fscrypt_user_key_describe(const struct key *key, struct seq_file *m)  in fscrypt_user_key_describe()  argument
113 	seq_puts(m, key->description);  in fscrypt_user_key_describe()
133 static struct key *search_fscrypt_keyring(struct key *keyring,  in search_fscrypt_keyring()
201 	struct key *keyring;  in allocate_filesystem_keyring()
229 struct key *fscrypt_find_master_key(struct super_block *sb,  in fscrypt_find_master_key()
232 	struct key *keyring;  in fscrypt_find_master_key()
247 	struct key *keyring;  in allocate_master_key_users_keyring()
266 static struct key *find_master_key_user(struct fscrypt_master_key *mk)  in find_master_key_user()
284 	struct key *mk_user;  in add_master_key_user()
307 	struct key *mk_user;  in remove_master_key_user()
325 			      struct key *keyring)  in add_new_master_key()
329 	struct key *key;  in add_new_master_key()  local
360 	key = key_alloc(&key_type_fscrypt, description,  in add_new_master_key()
364 	if (IS_ERR(key)) {  in add_new_master_key()
365 		err = PTR_ERR(key);  in add_new_master_key()
368 	err = key_instantiate_and_link(key, mk, sizeof(*mk), keyring, NULL);  in add_new_master_key()
369 	key_put(key);  in add_new_master_key()
385 	struct key *mk_user;  in add_existing_master_key()
432 	struct key *key;  in add_master_key()  local
437 	key = fscrypt_find_master_key(sb, mk_spec);  in add_master_key()
438 	if (IS_ERR(key)) {  in add_master_key()
439 		err = PTR_ERR(key);  in add_master_key()
452 		down_write(&key->sem);  in add_master_key()
453 		err = add_existing_master_key(key->payload.data[0], secret);  in add_master_key()
454 		up_write(&key->sem);  in add_master_key()
457 			key_invalidate(key);  in add_master_key()
458 			key_put(key);  in add_master_key()
461 		key_put(key);  in add_master_key()
617 	struct key *key, *mk_user;  in fscrypt_verify_key_added()  local
624 	key = fscrypt_find_master_key(sb, &mk_spec);  in fscrypt_verify_key_added()
625 	if (IS_ERR(key)) {  in fscrypt_verify_key_added()
626 		err = PTR_ERR(key);  in fscrypt_verify_key_added()
629 	mk = key->payload.data[0];  in fscrypt_verify_key_added()
637 	key_put(key);  in fscrypt_verify_key_added()
827 	struct key *key;  in do_remove_key()  local
851 	key = fscrypt_find_master_key(sb, &arg.key_spec);  in do_remove_key()
852 	if (IS_ERR(key))  in do_remove_key()
853 		return PTR_ERR(key);  in do_remove_key()
854 	mk = key->payload.data[0];  in do_remove_key()
856 	down_write(&key->sem);  in do_remove_key()
865 			up_write(&key->sem);  in do_remove_key()
877 			up_write(&key->sem);  in do_remove_key()
890 	up_write(&key->sem);  in do_remove_key()
896 		key_invalidate(key);  in do_remove_key()
914 	key_put(key);  in do_remove_key()
961 	struct key *key;  in fscrypt_ioctl_get_key_status()  local
978 	key = fscrypt_find_master_key(sb, &arg.key_spec);  in fscrypt_ioctl_get_key_status()
979 	if (IS_ERR(key)) {  in fscrypt_ioctl_get_key_status()
980 		if (key != ERR_PTR(-ENOKEY))  in fscrypt_ioctl_get_key_status()
981 			return PTR_ERR(key);  in fscrypt_ioctl_get_key_status()
986 	mk = key->payload.data[0];  in fscrypt_ioctl_get_key_status()
987 	down_read(&key->sem);  in fscrypt_ioctl_get_key_status()
997 		struct key *mk_user;  in fscrypt_ioctl_get_key_status()
1012 	up_read(&key->sem);  in fscrypt_ioctl_get_key_status()
1013 	key_put(key);  in fscrypt_ioctl_get_key_status()