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

#ifndef _KEYS_ASYMMETRIC_PARSER_H
#define _KEYS_ASYMMETRIC_PARSER_H

struct key_preparsed_payload;

/*
 * Key data parser.  Called during key instantiation.
 */
struct asymmetric_key_parser {
    struct list_head    link;
    struct module        *owner;
    const char        *name;

    /* Attempt to parse a key from the data blob passed to add_key() or
     * keyctl_instantiate().  Should also generate a proposed description
     * that the caller can optionally use for the key.
     *
     * Return EBADMSG if not recognised.
     */
    int (*parse)(struct key_preparsed_payload *prep);
};

extern int register_asymmetric_key_parser(struct asymmetric_key_parser *);
extern void unregister_asymmetric_key_parser(struct asymmetric_key_parser *);

#endif /* _KEYS_ASYMMETRIC_PARSER_H */