[unix-history] / usr / src / sys / net / if_slvar.h

/*	if_slvar.h	7.1	89/06/29	*/

/*
 * Definitions for SLIP "interface" data structure.
 *
 * (This exists so that programs can interpret the kernel data structures.)
 */
struct sl_softc {
	struct	ifnet sc_if;		/* network-visible interface */
	short	sc_flags;		/* see below */
	short	sc_ilen;		/* length of input-packet-so-far */
	struct	tty *sc_ttyp;		/* pointer to tty structure */
	char	*sc_mp;			/* pointer to next available buf char */
	char	*sc_buf;		/* input buffer */
	long	sc_lasttime;	/* last time a char arrived - seconds */
	long	sc_starttime;	/* last time a char arrived - seconds */
	long	sc_abortcount;	/* number of abort esacpe chars */
#ifdef INET
	struct	slcompress sc_comp;	/* tcp compression state */
#endif
};

/* flags */
#define	SC_ESCAPED	0x0001		/* saw a FRAME_ESCAPE */
#define	SC_COMPRESS	0x0002		/* compress TCP traffic */
#define	SC_NOICMP	0x0004		/* supress ICMP traffic */
#define	SC_ABORT	0x0008		/* have been sent an abort request */
#define	SC_OACTIVE	0x0010		/* output is active */

/* this stuff doesn't belong here... */
#define	SLIOCGFLAGS	_IOR('t', 90, int)	/* get configuration flags */
#define	SLIOCSFLAGS	_IOW('t', 89, int)	/* set configuration flags */
Commit	Line	Data
404373be MK	1	/* if_slvar.h 7.1 89/06/29 */
	2
	3	/*
	4	* Definitions for SLIP "interface" data structure.
	5	*
	6	* (This exists so that programs can interpret the kernel data structures.)
	7	*/
	8	struct sl_softc {
	9	struct ifnet sc_if; /* network-visible interface */
	10	short sc_flags; /* see below */
	11	short sc_ilen; /* length of input-packet-so-far */
	12	struct tty sc_ttyp; / pointer to tty structure */
	13	char sc_mp; / pointer to next available buf char */
	14	char sc_buf; / input buffer */
	15	long sc_lasttime; /* last time a char arrived - seconds */
	16	long sc_starttime; /* last time a char arrived - seconds */
	17	long sc_abortcount; /* number of abort esacpe chars */
	18	#ifdef INET
	19	struct slcompress sc_comp; /* tcp compression state */
	20	#endif
	21	};
	22
	23	/* flags */
	24	#define SC_ESCAPED 0x0001 /* saw a FRAME_ESCAPE */
	25	#define SC_COMPRESS 0x0002 /* compress TCP traffic */
	26	#define SC_NOICMP 0x0004 /* supress ICMP traffic */
	27	#define SC_ABORT 0x0008 /* have been sent an abort request */
	28	#define SC_OACTIVE 0x0010 /* output is active */
	29
	30	/* this stuff doesn't belong here... */
	31	#define SLIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
	32	#define SLIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */