/* Asymmetric public-key cryptography data parser
   *
   * See Documentation/crypto/asymmetric-keys.txt
   *
   * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public Licence
   * as published by the Free Software Foundation; either version
   * 2 of the Licence, or (at your option) any later version.
   */
  
  #ifndef _KEYS_ASYMMETRIC_PARSER_H
  #define _KEYS_ASYMMETRIC_PARSER_H
  
  /*
   * 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 */