1 /* $NetBSD: if_pppvar.h,v 1.8 1998/02/09 17:43:52 perry Exp $ */
2 /* Id: if_pppvar.h,v 1.3 1996/07/01 01:04:37 paulus Exp */
5 * if_pppvar.h - private structures and declarations for PPP.
7 * Copyright (c) 1994 The Australian National University.
10 * Permission to use, copy, modify, and distribute this software and its
11 * documentation is hereby granted, provided that the above copyright
12 * notice appears in all copies. This software is provided without any
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17 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
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30 * Copyright (c) 1989 Carnegie Mellon University.
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46 #ifndef _NET_IF_PPPVAR_H_
47 #define _NET_IF_PPPVAR_H_
50 * Supported network protocols. These values are used for
53 #define NP_IP 0 /* Internet Protocol */
54 #define NUM_NP 1 /* Number of NPs. */
57 * Structure describing each ppp unit.
60 struct ifnet sc_if; /* network-visible interface */
61 int sc_unit; /* XXX unit number */
62 u_int sc_flags; /* control/status bits; see if_ppp.h */
63 void *sc_devp; /* pointer to device-dep structure */
64 void (*sc_start) __P((struct ppp_softc *)); /* start output proc */
65 void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
66 void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
67 u_int16_t sc_mru; /* max receive unit */
68 pid_t sc_xfer; /* used in transferring unit */
69 struct ifqueue sc_rawq; /* received packets */
70 struct ifqueue sc_inq; /* queue of input packets for daemon */
71 struct ifqueue sc_fastq; /* interactive output packet q */
72 struct mbuf *sc_togo; /* output packet ready to go */
73 struct mbuf *sc_npqueue; /* output packets not to be sent yet */
74 struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */
75 struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
76 caddr_t sc_bpf; /* hook for BPF */
77 enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
78 struct compressor *sc_xcomp; /* transmit compressor */
79 void *sc_xc_state; /* transmit compressor state */
80 struct compressor *sc_rcomp; /* receive decompressor */
81 void *sc_rc_state; /* receive decompressor state */
82 time_t sc_last_sent; /* time (secs) last NP pkt sent */
83 time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
85 struct bpf_program sc_pass_filt; /* filter for packets to pass */
86 struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
87 #endif /* PPP_FILTER */
89 struct slcompress *sc_comp; /* vjc control buffer */
92 /* Device-dependent part for async lines. */
93 ext_accm sc_asyncmap; /* async control character map */
94 u_int32_t sc_rasyncmap; /* receive async control char map */
95 struct mbuf *sc_outm; /* mbuf chain currently being output */
96 struct mbuf *sc_m; /* pointer to input mbuf chain */
97 struct mbuf *sc_mc; /* pointer to current input mbuf */
98 char *sc_mp; /* ptr to next char in input mbuf */
99 u_int16_t sc_ilen; /* length of input packet so far */
100 u_int16_t sc_fcs; /* FCS so far (input) */
101 u_int16_t sc_outfcs; /* FCS so far for output packet */
102 u_char sc_rawin[16]; /* chars as received */
103 int sc_rawin_count; /* # in sc_rawin */
107 struct ppp_softc ppp_softc[NPPP];
109 struct ppp_softc *pppalloc __P((pid_t pid));
110 void pppdealloc __P((struct ppp_softc *sc));
111 int pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data,
112 int flag, struct proc *p));
113 void ppp_restart __P((struct ppp_softc *sc));
114 void ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
115 struct mbuf *ppp_dequeue __P((struct ppp_softc *sc));
116 int pppoutput __P((struct ifnet *, struct mbuf *,
117 struct sockaddr *, struct rtentry *));
120 #endif /* _NET_IF_PPPVAR_H_ */