1 /*!\file net/if_pppva.h
2 * PPP structures and declarations.
5 /* $NetBSD: if_pppvar.h,v 1.7 1997/05/17 21:12:03 christos Exp $ */
6 /* Id: if_pppvar.h,v 1.3 1996/07/01 01:04:37 paulus Exp */
9 * if_pppvar.h - private structures and declarations for PPP.
11 * Copyright (c) 1994 The Australian National University.
12 * All rights reserved.
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34 * Copyright (c) 1989 Carnegie Mellon University.
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50 #ifndef __NET_IF_PPPVAR_H
51 #define __NET_IF_PPPVAR_H
54 * Supported network protocols. These values are used for
57 #define NP_IP 0 /* Internet Protocol */
58 #define NUM_NP 1 /* Number of NPs. */
61 * Structure describing each ppp unit.
64 struct ifnet sc_if; /* network-visible interface */
65 int sc_unit; /* XXX unit number */
66 u_int sc_flags; /* control/status bits; see if_ppp.h */
67 void *sc_devp; /* pointer to device-dep structure */
68 void (*sc_start) __P((struct ppp_softc *)); /* start output proc */
69 void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
70 void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
71 u_int16_t sc_mru; /* max receive unit */
72 int sc_xfer; /* used in transferring unit */
73 struct ifqueue sc_rawq; /* received packets */
74 struct ifqueue sc_inq; /* queue of input packets for daemon */
75 struct ifqueue sc_fastq; /* interactive output packet q */
76 struct mbuf *sc_togo; /* output packet ready to go */
77 struct mbuf *sc_npqueue; /* output packets not to be sent yet */
78 struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */
79 struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
80 caddr_t sc_bpf; /* hook for BPF */
81 enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
82 struct compressor *sc_xcomp; /* transmit compressor */
83 void *sc_xc_state; /* transmit compressor state */
84 struct compressor *sc_rcomp; /* receive decompressor */
85 void *sc_rc_state; /* receive decompressor state */
86 time_t sc_last_sent; /* time (secs) last NP pkt sent */
87 time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
89 struct bpf_program sc_pass_filt; /* filter for packets to pass */
90 struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
91 #endif /* PPP_FILTER */
93 struct slcompress *sc_comp; /* vjc control buffer */
96 /* Device-dependent part for async lines. */
97 ext_accm sc_asyncmap; /* async control character map */
98 u_int32_t sc_rasyncmap; /* receive async control char map */
99 struct mbuf *sc_outm; /* mbuf chain currently being output */
100 struct mbuf *sc_m; /* pointer to input mbuf chain */
101 struct mbuf *sc_mc; /* pointer to current input mbuf */
102 char *sc_mp; /* ptr to next char in input mbuf */
103 u_int16_t sc_ilen; /* length of input packet so far */
104 u_int16_t sc_fcs; /* FCS so far (input) */
105 u_int16_t sc_outfcs; /* FCS so far for output packet */
106 u_char sc_rawin[16]; /* chars as received */
107 int sc_rawin_count; /* # in sc_rawin */