/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 *
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * 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 1.2 2000/11/08 01:49:03 callie Exp $
 */

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

#define CI_MS_DNS1	129	/* Primary DNS value */
#define CI_MS_WINS1	130	/* Primary WINS value */
#define CI_MS_DNS2	131	/* Secondary DNS value */
#define CI_MS_WINS2	132	/* Secondary WINS value */

#define MAX_STATES 16		/* from slcompress.h */

#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*/ 

typedef struct ipcp_options {
    u_char neg_addr;		/* Negotiate IP Address? */
    u_char old_addrs;		/* Use old (IP-Addresses) option? */
    u_char req_addr;		/* Ask peer to send IP address? */
    u_char proxy_arp;		/* Make proxy ARP entry for peer? */
    u_char neg_vj;		/* Van Jacobson Compression? */
    u_char old_vj;		/* use old (short) form of VJ option? */
    u_char accept_local;		/* accept peer's value for ouraddr */
    u_char accept_remote;		/* accept peer's value for hisaddr */
    u_char req_dns1;		/* Ask peer to send primary DNS address? */
    u_char req_dns2;		/* Ask peer to send secondary DNS address? */
    int  vj_protocol;		/* protocol value to use in VJ option */
    int  maxslotindex;		/* values for RFC1332 VJ compression neg. */
    u_char cflag;
    u_int32_t ouraddr, hisaddr;	/* Addresses in NETWORK BYTE ORDER */
    u_int32_t dnsaddr[2];	/* Primary and secondary MS DNS entries */
    u_int32_t winsaddr[2];	/* Primary and secondary MS WINS entries */
} ipcp_options;


char *ip_ntoa __P((u_int32_t));

extern struct protent ipcp_protent;