#ifndef	_SLIP_H
#define	_SLIP_H

#ifndef	_GLOBAL_H
#include "global.h"
#endif

#ifndef _PPP_H
#include "ppp.h"
#endif

#ifndef _SLCOMPRESS_H
#include "slcompre.h"
#endif

#define SLIP_MAX 5		/* Maximum number of slip channels */

/* SLIP definitions */
#define	SLIP_ALLOC	100	/* Receiver allocation increment */

#define	FR_END		0300	/* Frame End */
#define	FR_ESC		0333	/* Frame Escape */
#define	T_FR_END	0334	/* Transposed frame end */
#define	T_FR_ESC	0335	/* Transposed frame escape */

/* Slip protocol control structure */
struct slip {
	struct iface *iface;
	char escaped;		/* Receiver State control flag */
#define SLIP_FLAG	0x01		/* Last char was a frame escape */
#define SLIP_VJCOMPR	0x02		/* TCP header compression enabled */
	struct mbuf *rbp;	/* Head of mbuf chain being filled */
	struct mbuf *rbp1;	/* Pointer to mbuf currently being written */
	char *rcp;		/* Write pointer */
	int16 rcnt;		/* Length of mbuf chain */
	struct mbuf *tbp;	/* Transmit mbuf being sent */
	int16 errors;		/* Receiver input errors */
	int type;		/* Protocol of input */
	int (*send)(int,struct mbuf *);	/* Routine to send mbufs */
	int (*get)(int);	/* Routine to fetch input chars */
	int (*get_rlsd)(int, int);	/* Routine to monitor RLSD signal */
	struct slcompress *slcomp;	/* TCP header compression table */
	struct pppctl *pppio;	/* Control structure for PPP interfaces */
};
extern struct slip Slip[];
/* In slip.c: */
void asy_rx __ARGS((int xdev,void *p1,void *p2));
void asytxdone __ARGS((int dev));
int slip_raw __ARGS((struct iface *iface,struct mbuf *data));
int slip_send __ARGS((struct mbuf *bp,struct iface *iface,int32 gateway,int prec,
	int del,int tput,int rel));
void doslstat __ARGS((struct iface *iface));
#endif	/* _SLIP_H */