41 static void wipe_master_key_secret(struct fscrypt_master_key_secret *secret)  in wipe_master_key_secret()  argument
43 	fscrypt_destroy_hkdf(&secret->hkdf);  in wipe_master_key_secret()
44 	memzero_explicit(secret, sizeof(*secret));  in wipe_master_key_secret()
414 			      struct fscrypt_master_key_secret *secret,  in add_new_master_key()  argument
441 	move_master_key_secret(&mk->mk_secret, secret);  in add_new_master_key()
458 				   struct fscrypt_master_key_secret *secret)  in add_existing_master_key()  argument
485 		move_master_key_secret(&mk->mk_secret, secret);  in add_existing_master_key()
492 			     struct fscrypt_master_key_secret *secret,  in do_add_master_key()  argument
506 			err = add_new_master_key(sb, secret, mk_spec);  in do_add_master_key()
513 		err = add_existing_master_key(mk, secret);  in do_add_master_key()
522 			err = add_new_master_key(sb, secret, mk_spec);  in do_add_master_key()
531 			  struct fscrypt_master_key_secret *secret,  in add_master_key()  argument
538 		u8 *kdf_key = secret->raw;  in add_master_key()
539 		unsigned int kdf_key_size = secret->size;  in add_master_key()
548 		if (secret->is_hw_wrapped) {  in add_master_key()
549 			err = fscrypt_derive_sw_secret(sb, secret->raw,  in add_master_key()
550 						       secret->size, sw_secret);  in add_master_key()
556 		err = fscrypt_init_hkdf(&secret->hkdf, kdf_key, kdf_key_size);  in add_master_key()
566 		err = fscrypt_hkdf_expand(&secret->hkdf, keyid_kdf_ctx, NULL, 0,  in add_master_key()
572 	return do_add_master_key(sb, secret, key_spec);  in add_master_key()
646 			   struct fscrypt_master_key_secret *secret)  in get_keyring_key()  argument
666 	secret->size = key->datalen - sizeof(*payload);  in get_keyring_key()
667 	memcpy(secret->raw, payload->raw, secret->size);  in get_keyring_key()
707 	struct fscrypt_master_key_secret secret;  in fscrypt_ioctl_add_key()  local
728 	memset(&secret, 0, sizeof(secret));  in fscrypt_ioctl_add_key()
735 		secret.is_hw_wrapped = true;  in fscrypt_ioctl_add_key()
741 		err = get_keyring_key(arg.key_id, arg.key_spec.type, &secret);  in fscrypt_ioctl_add_key()
745 		if (secret.size > FSCRYPT_MAX_STANDARD_KEY_SIZE &&  in fscrypt_ioctl_add_key()
746 		    !secret.is_hw_wrapped)  in fscrypt_ioctl_add_key()
750 		    arg.raw_size > (secret.is_hw_wrapped ?  in fscrypt_ioctl_add_key()
754 		secret.size = arg.raw_size;  in fscrypt_ioctl_add_key()
756 		if (copy_from_user(secret.raw, uarg->raw, secret.size))  in fscrypt_ioctl_add_key()
760 	err = add_master_key(sb, &secret, &arg.key_spec);  in fscrypt_ioctl_add_key()
772 	wipe_master_key_secret(&secret);  in fscrypt_ioctl_add_key()
778 fscrypt_get_test_dummy_secret(struct fscrypt_master_key_secret *secret)  in fscrypt_get_test_dummy_secret()  argument
784 	memset(secret, 0, sizeof(*secret));  in fscrypt_get_test_dummy_secret()
785 	secret->size = sizeof(test_key);  in fscrypt_get_test_dummy_secret()
786 	memcpy(secret->raw, test_key, sizeof(test_key));  in fscrypt_get_test_dummy_secret()
792 	struct fscrypt_master_key_secret secret;  in fscrypt_get_test_dummy_key_identifier()  local
795 	fscrypt_get_test_dummy_secret(&secret);  in fscrypt_get_test_dummy_key_identifier()
797 	err = fscrypt_init_hkdf(&secret.hkdf, secret.raw, secret.size);  in fscrypt_get_test_dummy_key_identifier()
800 	err = fscrypt_hkdf_expand(&secret.hkdf, HKDF_CONTEXT_KEY_IDENTIFIER,  in fscrypt_get_test_dummy_key_identifier()
804 	wipe_master_key_secret(&secret);  in fscrypt_get_test_dummy_key_identifier()
823 	struct fscrypt_master_key_secret secret;  in fscrypt_add_test_dummy_key()  local
826 	fscrypt_get_test_dummy_secret(&secret);  in fscrypt_add_test_dummy_key()
827 	err = add_master_key(sb, &secret, key_spec);  in fscrypt_add_test_dummy_key()
828 	wipe_master_key_secret(&secret);  in fscrypt_add_test_dummy_key()