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 Paul Mackerras. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. The name(s) of the authors of this software must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission.
25 * 4. Redistributions of any form whatsoever must retain the following
27 * "This product includes software developed by Paul Mackerras
28 * <paulus@samba.org>".
30 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
31 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
32 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
33 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
34 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
35 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
36 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
38 * Copyright (c) 1989 Carnegie Mellon University.
39 * All rights reserved.
41 * Redistribution and use in source and binary forms are permitted
42 * provided that the above copyright notice and this paragraph are
43 * duplicated in all such forms and that any documentation,
44 * advertising materials, and other materials related to such
45 * distribution and use acknowledge that the software was developed
46 * by Carnegie Mellon University. The name of the
47 * University may not be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
50 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
51 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
54 #ifndef _NET_IF_PPPVAR_H_
55 #define _NET_IF_PPPVAR_H_
58 * Supported network protocols. These values are used for
61 #define NP_IP 0 /* Internet Protocol */
62 #define NUM_NP 1 /* Number of NPs. */
65 * Structure describing each ppp unit.
68 struct ifnet sc_if; /* network-visible interface */
69 int sc_unit; /* XXX unit number */
70 u_int sc_flags; /* control/status bits; see if_ppp.h */
71 void *sc_devp; /* pointer to device-dep structure */
72 void (*sc_start) __P((struct ppp_softc *)); /* start output proc */
73 void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
74 void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
75 u_int16_t sc_mru; /* max receive unit */
76 pid_t sc_xfer; /* used in transferring unit */
77 struct ifqueue sc_rawq; /* received packets */
78 struct ifqueue sc_inq; /* queue of input packets for daemon */
79 struct ifqueue sc_fastq; /* interactive output packet q */
80 struct mbuf *sc_togo; /* output packet ready to go */
81 struct mbuf *sc_npqueue; /* output packets not to be sent yet */
82 struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */
83 struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
84 caddr_t sc_bpf; /* hook for BPF */
85 enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
86 struct compressor *sc_xcomp; /* transmit compressor */
87 void *sc_xc_state; /* transmit compressor state */
88 struct compressor *sc_rcomp; /* receive decompressor */
89 void *sc_rc_state; /* receive decompressor state */
90 time_t sc_last_sent; /* time (secs) last NP pkt sent */
91 time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
93 struct bpf_program sc_pass_filt; /* filter for packets to pass */
94 struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
95 #endif /* PPP_FILTER */
97 struct slcompress *sc_comp; /* vjc control buffer */
100 /* Device-dependent part for async lines. */
101 ext_accm sc_asyncmap; /* async control character map */
102 u_int32_t sc_rasyncmap; /* receive async control char map */
103 struct mbuf *sc_outm; /* mbuf chain currently being output */
104 struct mbuf *sc_m; /* pointer to input mbuf chain */
105 struct mbuf *sc_mc; /* pointer to current input mbuf */
106 char *sc_mp; /* ptr to next char in input mbuf */
107 u_int16_t sc_ilen; /* length of input packet so far */
108 u_int16_t sc_fcs; /* FCS so far (input) */
109 u_int16_t sc_outfcs; /* FCS so far for output packet */
110 u_char sc_rawin[16]; /* chars as received */
111 int sc_rawin_count; /* # in sc_rawin */
115 struct ppp_softc ppp_softc[NPPP];
117 struct ppp_softc *pppalloc __P((pid_t pid));
118 void pppdealloc __P((struct ppp_softc *sc));
119 int pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data,
120 int flag, struct proc *p));
121 void ppp_restart __P((struct ppp_softc *sc));
122 void ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
123 struct mbuf *ppp_dequeue __P((struct ppp_softc *sc));
124 int pppoutput __P((struct ifnet *, struct mbuf *,
125 struct sockaddr *, struct rtentry *));
128 #endif /* _NET_IF_PPPVAR_H_ */