/*
   *   fs/cifs/cifs_spnego.h -- SPNEGO upcall management for CIFS
   *
   *   Copyright (c) 2007 Red Hat, Inc.
   *   Author(s): Jeff Layton (jlayton@redhat.com)
   *              Steve French (sfrench@us.ibm.com)
   *
   *   This library is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU Lesser General Public License as published
   *   by the Free Software Foundation; either version 2.1 of the License, or
   *   (at your option) any later version.
   *
   *   This library is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
   *   the GNU Lesser General Public License for more details.
   *
   *   You should have received a copy of the GNU Lesser General Public License
   *   along with this library; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
   */
  
  #ifndef _CIFS_SPNEGO_H
  #define _CIFS_SPNEGO_H

  #define CIFS_SPNEGO_UPCALL_VERSION 2

  
  /*
   * The version field should always be set to CIFS_SPNEGO_UPCALL_VERSION.
   * The flags field is for future use. The request-key callout should set
   * sesskey_len and secblob_len, and then concatenate the SessKey+SecBlob
   * and stuff it in the data field.
   */
  struct cifs_spnego_msg {
  	uint32_t	version;
  	uint32_t	flags;
  	uint32_t	sesskey_len;
  	uint32_t	secblob_len;
  	uint8_t		data[1];
  };
  
  #ifdef __KERNEL__
  extern struct key_type cifs_spnego_key_type;

  extern struct key *cifs_get_spnego_key(struct cifs_ses *sesInfo);

  #endif /* KERNEL */
  
  #endif /* _CIFS_SPNEGO_H */