linux/include/keys/asymmetric-subtype.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Asymmetric public-key cryptography key subtype
 *
 * See Documentation/crypto/asymmetric-keys.rst
 *
 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 */

#ifndef _KEYS_ASYMMETRIC_SUBTYPE_H
#define _KEYS_ASYMMETRIC_SUBTYPE_H

#include <linux/seq_file.h>
#include <keys/asymmetric-type.h>

struct kernel_pkey_query;
struct kernel_pkey_params;
struct public_key_signature;

/*
 * Keys of this type declare a subtype that indicates the handlers and
 * capabilities.
 */
struct asymmetric_key_subtype { … };

/**
 * asymmetric_key_subtype - Get the subtype from an asymmetric key
 * @key: The key of interest.
 *
 * Retrieves and returns the subtype pointer of the asymmetric key from the
 * type-specific data attached to the key.
 */
static inline
struct asymmetric_key_subtype *asymmetric_key_subtype(const struct key *key)
{ … }

#endif /* _KEYS_ASYMMETRIC_SUBTYPE_H */