Watt-32 tcp/ip  2.2 dev-rel.10
if_pppva.h
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1 
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 */
7 
8 /*
9  * if_pppvar.h - private structures and declarations for PPP.
10  *
11  * Copyright (c) 1994 The Australian National University.
12  * All rights reserved.
13  *
14  * Permission to use, copy, modify, and distribute this software and its
15  * documentation is hereby granted, provided that the above copyright
16  * notice appears in all copies. This software is provided without any
17  * warranty, express or implied. The Australian National University
18  * makes no representations about the suitability of this software for
19  * any purpose.
20  *
21  * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
22  * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
23  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
24  * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
25  * OF SUCH DAMAGE.
26  *
27  * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
28  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
29  * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
30  * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
31  * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
32  * OR MODIFICATIONS.
33  *
34  * Copyright (c) 1989 Carnegie Mellon University.
35  * All rights reserved.
36  *
37  * Redistribution and use in source and binary forms are permitted
38  * provided that the above copyright notice and this paragraph are
39  * duplicated in all such forms and that any documentation,
40  * advertising materials, and other materials related to such
41  * distribution and use acknowledge that the software was developed
42  * by Carnegie Mellon University. The name of the
43  * University may not be used to endorse or promote products derived
44  * from this software without specific prior written permission.
45  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
46  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
47  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
48  */
49 
50 #ifndef __NET_IF_PPPVAR_H
51 #define __NET_IF_PPPVAR_H
52 
53 #ifndef __SYS_MBUF_H
54 #include <sys/mbuf.h>
55 #endif
56 
57 /*
58  * Supported network protocols. These values are used for
59  * indexing sc_npmode.
60  */
61 #define NP_IP 0 /* Internet Protocol */
62 #define NUM_NP 1 /* Number of NPs. */
63 
64 /*
65  * Structure describing each ppp unit.
66  */
67 struct ppp_softc {
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  int 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 */
92 #ifdef PPP_FILTER
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 */
96 #ifdef VJC
97  struct slcompress *sc_comp; /* vjc control buffer */
98 #endif
99 
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 */
112 };
113 
114 #endif
Definition: if.h:130
Definition: mbuf.h:6