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Annotation of 43BSDReno/sys/net/if_slvar.h, revision 1.1

1.1     ! root        1: /*     @(#)if_slvar.h  7.4 (Berkeley) 1/20/90 */
        !             2: 
        !             3: /*
        !             4:  * Definitions for SLIP interface data structures
        !             5:  * 
        !             6:  * (this exists so programs like slstats can get at the definition
        !             7:  *  of sl_softc.)
        !             8:  *
        !             9:  * $Header: if_slvar.h,v 1.3 89/05/31 02:25:18 van Exp $
        !            10:  */
        !            11: struct sl_softc {
        !            12:        struct  ifnet sc_if;            /* network-visible interface */
        !            13:        struct  ifqueue sc_fastq;       /* interactive output queue */
        !            14:        struct  tty *sc_ttyp;           /* pointer to tty structure */
        !            15:        u_char  *sc_mp;                 /* pointer to next available buf char */
        !            16:        u_char  *sc_ep;                 /* pointer to last available buf char */
        !            17:        u_char  *sc_buf;                /* input buffer */
        !            18:        u_int   sc_flags;               /* see below */
        !            19:        u_int   sc_escape;      /* =1 if last char input was FRAME_ESCAPE */
        !            20:        u_int   sc_bytessent;
        !            21:        u_int   sc_bytesrcvd;
        !            22:        long    sc_lasttime;            /* last time a char arrived */
        !            23:        long    sc_starttime;           /* last time a char arrived */
        !            24:        long    sc_abortcount;          /* number of abort esacpe chars */
        !            25: #ifdef INET                            /* XXX */
        !            26:        struct  slcompress sc_comp;     /* tcp compression data */
        !            27: #endif
        !            28: };
        !            29: 
        !            30: /* visible flags */
        !            31: #define        SC_COMPRESS     0x0002          /* compress TCP traffic */
        !            32: #define        SC_NOICMP       0x0004          /* supress ICMP traffic */
        !            33: #define        SC_AUTOCOMP     0x0008          /* auto-enable TCP compression */
        !            34: /* internal flags (should be separate) */
        !            35: #define        SC_ABORT        0x10000         /* have been sent an abort request */
        !            36: 
        !            37: /* this stuff doesn't belong here... */
        !            38: #define        SLIOCGFLAGS     _IOR('t', 90, int)      /* get configuration flags */
        !            39: #define        SLIOCSFLAGS     _IOW('t', 89, int)      /* set configuration flags */
        !            40: #define        SLIOGUNIT       _IOW('t', 88, int)      /* get slip unit number */

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