[unix-history] / libexec / pppd / lcp.h

/*
 * lcp.h - Link 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: lcp.h,v 1.1 1993/11/11 03:54:25 paulus Exp $
 */

/*
 * Options.
 */
#define CI_MRU		1	/* Maximum Receive Unit */
#define CI_ASYNCMAP	2	/* Async Control Character Map */
#define CI_AUTHTYPE	3	/* Authentication Type */
#define CI_QUALITY	4	/* Quality Protocol */
#define CI_MAGICNUMBER	5	/* Magic Number */
#define CI_KEEPALIVE	6	/* Keep Alive Parameters - OBSOLETE */
#define CI_PCOMPRESSION	7	/* Protocol Field Compression */
#define CI_ACCOMPRESSION 8	/* Address/Control Field Compression */


/*
 * The state of options is described by an lcp_options structure.
 */
typedef struct lcp_options {
    int passive : 1;		/* Don't die if we don't get a response */
    int silent : 1;		/* Wait for the other end to start first */
    int restart : 1;		/* Restart vs. exit after close */
    int neg_mru : 1;		/* Negotiate the MRU? */
    int neg_asyncmap : 1;	/* Negotiate the async map? */
    int neg_upap : 1;		/* Ask for UPAP authentication? */
    int neg_chap : 1;		/* Ask for CHAP authentication? */
    int neg_magicnumber : 1;	/* Ask for magic number? */
    int neg_pcompression : 1;	/* HDLC Protocol Field Compression? */
    int neg_accompression : 1;	/* HDLC Address/Control Field Compression? */
    int neg_lqr : 1;		/* Negotiate use of Link Quality Reports */
    u_short mru;		/* Value of MRU */
    char chap_mdtype;		/* which MD type (hashing algorithm) */
    u_long asyncmap;		/* Value of async map */
    u_long magicnumber;
    int numloops;		/* Number of loops during magic number neg. */
    u_long lqr_period;		/* Reporting period for link quality */
} lcp_options;

extern fsm lcp_fsm[];
extern lcp_options lcp_wantoptions[];
extern lcp_options lcp_gotoptions[];
extern lcp_options lcp_allowoptions[];
extern lcp_options lcp_hisoptions[];

#define DEFMRU	1500		/* Try for this */
#define MINMRU	128		/* No MRUs below this */
#define MAXMRU	16384		/* Normally limit MRU to this */

void lcp_init __ARGS((int));
void lcp_open __ARGS((int));
void lcp_close __ARGS((int));
void lcp_lowerup __ARGS((int));
void lcp_lowerdown __ARGS((int));
void lcp_input __ARGS((int, u_char *, int));
void lcp_protrej __ARGS((int));
void lcp_sprotrej __ARGS((int, u_char *, int));

extern int lcp_warnloops;	/* Warn about a loopback this often */
#define DEFWARNLOOPS	10	/* Default value for above */
Commit	Line	Data
2a905848 RG	1	/*
	2	* lcp.h - Link Control Protocol definitions.
	3	*
	4	* Copyright (c) 1989 Carnegie Mellon University.
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms are permitted
	8	* provided that the above copyright notice and this paragraph are
	9	* duplicated in all such forms and that any documentation,
	10	* advertising materials, and other materials related to such
	11	* distribution and use acknowledge that the software was developed
	12	* by Carnegie Mellon University. The name of the
	13	* University may not be used to endorse or promote products derived
	14	* from this software without specific prior written permission.
	15	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	16	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	17	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
f381ea37 JH	18	*
f381ea37 JH	19	* $Id: lcp.h,v 1.1 1993/11/11 03:54:25 paulus Exp $
2a905848 RG	20	*/
	21
	22	/*
	23	* Options.
	24	*/
	25	#define CI_MRU 1 /* Maximum Receive Unit */
	26	#define CI_ASYNCMAP 2 /* Async Control Character Map */
	27	#define CI_AUTHTYPE 3 /* Authentication Type */
f381ea37	28	#define CI_QUALITY 4 /* Quality Protocol */
2a905848	29	#define CI_MAGICNUMBER 5 /* Magic Number */
f381ea37	30	#define CI_KEEPALIVE 6 /* Keep Alive Parameters - OBSOLETE */
2a905848 RG	31	#define CI_PCOMPRESSION 7 /* Protocol Field Compression */
	32	#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
	33
	34
	35	/*
	36	* The state of options is described by an lcp_options structure.
	37	*/
	38	typedef struct lcp_options {
f381ea37 JH	39	int passive : 1; /* Don't die if we don't get a response */
f381ea37 JH	40	int silent : 1; /* Wait for the other end to start first */
2a905848 RG	41	int restart : 1; /* Restart vs. exit after close */
2a905848 RG	42	int neg_mru : 1; /* Negotiate the MRU? */
f381ea37 JH	43	int neg_asyncmap : 1; /* Negotiate the async map? */
	44	int neg_upap : 1; /* Ask for UPAP authentication? */
	45	int neg_chap : 1; /* Ask for CHAP authentication? */
	46	int neg_magicnumber : 1; /* Ask for magic number? */
2a905848 RG	47	int neg_pcompression : 1; /* HDLC Protocol Field Compression? */
2a905848 RG	48	int neg_accompression : 1; /* HDLC Address/Control Field Compression? */
f381ea37 JH	49	int neg_lqr : 1; /* Negotiate use of Link Quality Reports */
	50	u_short mru; /* Value of MRU */
	51	char chap_mdtype; /* which MD type (hashing algorithm) */
	52	u_long asyncmap; /* Value of async map */
	53	u_long magicnumber;
	54	int numloops; /* Number of loops during magic number neg. */
	55	u_long lqr_period; /* Reporting period for link quality */
2a905848 RG	56	} lcp_options;
	57
	58	extern fsm lcp_fsm[];
	59	extern lcp_options lcp_wantoptions[];
	60	extern lcp_options lcp_gotoptions[];
	61	extern lcp_options lcp_allowoptions[];
	62	extern lcp_options lcp_hisoptions[];
	63
	64	#define DEFMRU 1500 /* Try for this */
	65	#define MINMRU 128 /* No MRUs below this */
f381ea37	66	#define MAXMRU 16384 /* Normally limit MRU to this */
2a905848 RG	67
2a905848 RG	68	void lcp_init __ARGS((int));
f381ea37	69	void lcp_open __ARGS((int));
2a905848 RG	70	void lcp_close __ARGS((int));
	71	void lcp_lowerup __ARGS((int));
	72	void lcp_lowerdown __ARGS((int));
	73	void lcp_input __ARGS((int, u_char *, int));
	74	void lcp_protrej __ARGS((int));
	75	void lcp_sprotrej __ARGS((int, u_char *, int));
f381ea37 JH	76
	77	extern int lcp_warnloops; /* Warn about a loopback this often */
	78	#define DEFWARNLOOPS 10 /* Default value for above */