#ifndef LLC_IF_H
  #define LLC_IF_H
  /*
   * Copyright (c) 1997 by Procom Technology,Inc.
   * 		 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   *
   * This program can be redistributed or modified under the terms of the
   * GNU General Public License as published by the Free Software Foundation.
   * This program is distributed without any warranty or implied warranty
   * of merchantability or fitness for a particular purpose.
   *
   * See the GNU General Public License for more details.
   */
  /* Defines LLC interface to network layer */
  /* Available primitives */
  #include <linux/if.h>
  #include <linux/if_arp.h>
  #include <linux/llc.h>

  #include <linux/etherdevice.h>

  #include <net/llc.h>
  
  #define LLC_DATAUNIT_PRIM	1
  #define LLC_CONN_PRIM		2
  #define LLC_DATA_PRIM		3
  #define LLC_DISC_PRIM		4
  #define LLC_RESET_PRIM		5
  #define LLC_FLOWCONTROL_PRIM	6 /* Not supported at this time */
  #define LLC_DISABLE_PRIM	7
  #define LLC_XID_PRIM		8
  #define LLC_TEST_PRIM		9
  #define LLC_SAP_ACTIVATION     10
  #define LLC_SAP_DEACTIVATION   11
  
  #define LLC_NBR_PRIMITIVES     11
  
  #define LLC_IND			1
  #define LLC_CONFIRM		2
  
  /* Primitive type */
  #define LLC_PRIM_TYPE_REQ	1
  #define LLC_PRIM_TYPE_IND	2
  #define LLC_PRIM_TYPE_RESP	3
  #define LLC_PRIM_TYPE_CONFIRM	4
  
  /* Reset reasons, remote entity or local LLC */
  #define LLC_RESET_REASON_REMOTE	1
  #define LLC_RESET_REASON_LOCAL	2
  
  /* Disconnect reasons */
  #define LLC_DISC_REASON_RX_DM_RSP_PDU	0
  #define LLC_DISC_REASON_RX_DISC_CMD_PDU	1
  #define LLC_DISC_REASON_ACK_TMR_EXP	2
  
  /* Confirm reasons */
  #define LLC_STATUS_CONN		0 /* connect confirm & reset confirm */
  #define LLC_STATUS_DISC		1 /* connect confirm & reset confirm */
  #define LLC_STATUS_FAILED	2 /* connect confirm & reset confirm */
  #define LLC_STATUS_IMPOSSIBLE	3 /* connect confirm */
  #define LLC_STATUS_RECEIVED	4 /* data conn */
  #define LLC_STATUS_REMOTE_BUSY	5 /* data conn */
  #define LLC_STATUS_REFUSE	6 /* data conn */
  #define LLC_STATUS_CONFLICT	7 /* disconnect conn */
  #define LLC_STATUS_RESET_DONE	8 /*  */

  /**
   *      llc_mac_null - determines if a address is a null mac address
   *      @mac: Mac address to test if null.
   *
   *      Determines if a given address is a null mac address.  Returns 0 if the
   *      address is not a null mac, 1 if the address is a null mac.
   */

  static inline int llc_mac_null(const u8 *mac)

  {

  	return is_zero_ether_addr(mac);

  }

  static inline int llc_mac_multicast(const u8 *mac)
  {
  	return is_multicast_ether_addr(mac);
  }

  /**
   *	llc_mac_match - determines if two mac addresses are the same
   *	@mac1: First mac address to compare.
   *	@mac2: Second mac address to compare.
   *
   *	Determines if two given mac address are the same.  Returns 0 if there
   *	is not a complete match up to len, 1 if a complete match up to len is
   *	found.
   */

  static inline int llc_mac_match(const u8 *mac1, const u8 *mac2)

  {

  	return !compare_ether_addr(mac1, mac2);

  }
  
  extern int llc_establish_connection(struct sock *sk, u8 *lmac,
  				    u8 *dmac, u8 dsap);
  extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
  extern int llc_send_disc(struct sock *sk);
  #endif /* LLC_IF_H */