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/*****************************************************************************

* 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 2 2011-07-17 20:13:17Z filepang@gmail.com $

 */

#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 */