/*****************************************************************************
* ipcp.h -  PPP IP NCP: Internet Protocol Network Control Protocol header file.
*
* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
* portions Copyright (c) 1997 Global Election Systems Inc.
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice and the following disclaimer are included verbatim in any 
* distributions. No written agreement, license, or royalty fee is required
* for any of the authorized uses.
*
* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
* REVISION HISTORY
*
* 03-01-01 Marc Boucher <marc@mbsi.ca>
*   Ported to lwIP.
* 97-12-04 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
*	Original derived from BSD codes.
*****************************************************************************/
/*
 * ipcp.h - IP Control Protocol definitions.
 *
 * Copyright (c) 1989 Carnegie Mellon University.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by Carnegie Mellon University.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * $Id: ipcp.h,v 1.1 2003/05/27 14:37:56 jani Exp $
 */

#ifndef IPCP_H
#define IPCP_H

/*************************
*** PUBLIC DEFINITIONS ***
*************************/
/*
 * Options.
 */
#define CI_ADDRS	1			/* IP Addresses */
#define CI_COMPRESSTYPE	2		/* Compression Type */
#define	CI_ADDR		3

#define CI_MS_WINS1	128			/* Primary WINS value */
#define CI_MS_DNS1	129			/* Primary DNS value */
#define CI_MS_WINS2	130			/* Secondary WINS value */
#define CI_MS_DNS2	131			/* Secondary DNS value */

#define IPCP_VJMODE_OLD 1		/* "old" mode (option # = 0x0037) */
#define IPCP_VJMODE_RFC1172 2	/* "old-rfc"mode (option # = 0x002d) */
#define IPCP_VJMODE_RFC1332 3	/* "new-rfc"mode (option # = 0x002d, */
                                /*  maxslot and slot number compression) */

#define IPCP_VJ_COMP 0x002d		/* current value for VJ compression option*/
#define IPCP_VJ_COMP_OLD 0x0037	/* "old" (i.e, broken) value for VJ */
								/* compression option*/ 


/************************
*** PUBLIC DATA TYPES ***
************************/

typedef struct ipcp_options {
    u_int neg_addr : 1;			/* Negotiate IP Address? */
    u_int old_addrs : 1;			/* Use old (IP-Addresses) option? */
    u_int req_addr : 1;			/* Ask peer to send IP address? */
    u_int default_route : 1;		/* Assign default route through interface? */
    u_int proxy_arp : 1;			/* Make proxy ARP entry for peer? */
    u_int neg_vj : 1;				/* Van Jacobson Compression? */
    u_int old_vj : 1;				/* use old (short) form of VJ option? */
    u_int accept_local : 1;		/* accept peer's value for ouraddr */
    u_int accept_remote : 1;		/* accept peer's value for hisaddr */
    u_int req_dns1 : 1;			/* Ask peer to send primary DNS address? */
    u_int req_dns2 : 1;			/* Ask peer to send secondary DNS address? */
    u_short vj_protocol;		/* protocol value to use in VJ option */
    u_char maxslotindex;		/* VJ slots - 1. */
    u_char cflag;				/* VJ slot compression flag. */
    u32_t ouraddr, hisaddr;	/* Addresses in NETWORK BYTE ORDER */
    u32_t dnsaddr[2];		/* Primary and secondary MS DNS entries */
    u32_t winsaddr[2];		/* Primary and secondary MS WINS entries */
} ipcp_options;


/*****************************
*** PUBLIC DATA STRUCTURES ***
*****************************/

extern fsm ipcp_fsm[];
extern ipcp_options ipcp_wantoptions[];
extern ipcp_options ipcp_gotoptions[];
extern ipcp_options ipcp_allowoptions[];
extern ipcp_options ipcp_hisoptions[];

extern struct protent ipcp_protent;


/***********************
*** PUBLIC FUNCTIONS ***
***********************/


#endif /* IPCP_H */