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/*
* if_ppp.h - Point-to-Point 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.
*/
/* Portions Copyright (C) 1990 Brad K. Clements (streams support)
*/
#import <kernserv/prototypes.h>
/*
* Supported network protocols. These values are used for
* indexing sc_npmode.
*/
#define NP_IP 0 /* Internet Protocol */
#define NUM_NP 1 /* Number of NPs. */
#include "nbq.h"
/* only defined in the posix universe... */
//typedef int pid_t;
typedef unsigned short u_int16_t;
struct ppp_softc {
netif_t sc_if; /* network-visible interface */
u_int sc_flags; /* control/status bits; see if_ppp.h */
struct tty *sc_devp; /* pointer to device-dep structure */
void (*sc_start) __P((struct ppp_softc *)); /* start output proc */
void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
u_int16_t sc_mru; /* max receive unit */
pid_t sc_xfer; /* used in transferring unit */
NETBUF_T sc_m; /* Current TTY input netbuf */
struct nb_queue sc_freeq; /* reserve netbufs */
struct nb_queue sc_rawq; /* Raw input buffers */
struct nb_queue sc_fastq; /* For telnet, rlogin, and ftp control */
struct nb_queue sc_slowq; /* Everything else */
struct nb_queue sc_inq; /* Input available to user ppp */
struct nb_queue sc_npq; /* output packets not to be sent yet */
struct nb_queue sc_compq; /* Cache of compressed bufs to be sent */
#ifdef VJC
struct vjcompress sc_comp;
#endif
u_int sc_bytessent; /* count of octets sent */
u_int sc_bytesrcvd; /* count of octets received */
#if NBPFILTER
caddr_t sc_bpf; /* hook for BPF */
int if_pcount; /* Really belongs in ifnet_t */
#endif
enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
#ifdef PPP_COMPRESS
struct compressor *sc_xcomp; /* transmit compressor */
void *sc_xc_state; /* transmit compressor state */
struct compressor *sc_rcomp; /* receive decompressor */
void *sc_rc_state; /* receive decompressor state */
#endif
time_t sc_last_sent; /* time (secs) last NP pkt sent */
time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
short sc_compsched; /* synchronize compression callouts */
short sc_decompsched; /* synchronize decompression callouts */
/* Device-dependent part for async lines. */
ext_accm sc_asyncmap; /* async control character map */
u_int32_t sc_rasyncmap; /* receive async control char map */
NETBUF_T sc_outm; /* netbuf currently being output */
char *sc_mp; /* ptr to next char in input netbuf */
u_int16_t sc_ilen; /* length of input packet so far */
u_int16_t sc_fcs; /* FCS so far (input) */
u_int16_t sc_outfcs; /* FCS so far for output packet */
u_char sc_rawin[16]; /* chars as received */
int sc_rawin_count; /* # in sc_rawin */
};
extern struct ppp_softc ppp_softc[];
struct ppp_softc *pppalloc __P((pid_t pid));
void pppdealloc __P((struct ppp_softc *sc));
int pppioctl __P((struct ppp_softc *sc, u_long cmd, void *data, int flag));
void ppppktin __P((struct ppp_softc *sc, NETBUF_T m, int lost));
NETBUF_T ppp_dequeue __P((struct ppp_softc *sc));
#define t_sc T_LINEP
#define incr_cnt(ifp,field) field##_set(ifp, field(ifp) + 1)
#ifdef VJC
#define VJ_HDRLEN 128
#endif
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