88 lines
3.3 KiB
C
88 lines
3.3 KiB
C
/*
|
|
* 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 1.4 1994/05/24 11:22:28 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_PCOMPRESSION 7 /* Protocol Field Compression */
|
|
#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
|
|
|
|
/*
|
|
* LCP-specific packet types.
|
|
*/
|
|
#define PROTREJ 8 /* Protocol Reject */
|
|
#define ECHOREQ 9 /* Echo Request */
|
|
#define ECHOREP 10 /* Echo Reply */
|
|
#define DISCREQ 11 /* Discard Request */
|
|
|
|
/*
|
|
* 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 */
|
|
u_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[];
|
|
extern u_long xmit_accm[][8];
|
|
|
|
#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));
|
|
int lcp_printpkt __ARGS((u_char *, int,
|
|
void (*) __ARGS((void *, char *, ...)), void *));
|
|
|
|
extern int lcp_warnloops; /* Warn about a loopback this often */
|
|
#define DEFWARNLOOPS 10 /* Default value for above */
|