Annotation of sys/net/if_pppvar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: if_pppvar.h,v 1.15 2003/12/07 15:41:27 markus Exp $ */
2: /* $NetBSD: if_pppvar.h,v 1.5 1997/01/03 07:23:29 mikel Exp $ */
3: /*
4: * if_pppvar.h - private structures and declarations for PPP.
5: *
6: * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: *
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: *
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in
17: * the documentation and/or other materials provided with the
18: * distribution.
19: *
20: * 3. The name(s) of the authors of this software must not be used to
21: * endorse or promote products derived from this software without
22: * prior written permission.
23: *
24: * 4. Redistributions of any form whatsoever must retain the following
25: * acknowledgment:
26: * "This product includes software developed by Paul Mackerras
27: * <paulus@samba.org>".
28: *
29: * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
30: * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
31: * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
32: * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
33: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
34: * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
35: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
36: *
37: * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
38: *
39: * Redistribution and use in source and binary forms, with or without
40: * modification, are permitted provided that the following conditions
41: * are met:
42: *
43: * 1. Redistributions of source code must retain the above copyright
44: * notice, this list of conditions and the following disclaimer.
45: *
46: * 2. Redistributions in binary form must reproduce the above copyright
47: * notice, this list of conditions and the following disclaimer in
48: * the documentation and/or other materials provided with the
49: * distribution.
50: *
51: * 3. The name "Carnegie Mellon University" must not be used to
52: * endorse or promote products derived from this software without
53: * prior written permission. For permission or any legal
54: * details, please contact
55: * Office of Technology Transfer
56: * Carnegie Mellon University
57: * 5000 Forbes Avenue
58: * Pittsburgh, PA 15213-3890
59: * (412) 268-4387, fax: (412) 268-7395
60: * tech-transfer@andrew.cmu.edu
61: *
62: * 4. Redistributions of any form whatsoever must retain the following
63: * acknowledgment:
64: * "This product includes software developed by Computing Services
65: * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
66: *
67: * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
68: * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
69: * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
70: * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
71: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
72: * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
73: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
74: */
75:
76: #ifndef _NET_IF_PPPVAR_H_
77: #define _NET_IF_PPPVAR_H_
78:
79: /*
80: * Supported network protocols. These values are used for
81: * indexing sc_npmode.
82: */
83: #define NP_IP 0 /* Internet Protocol */
84: #define NUM_NP 1 /* Number of NPs. */
85:
86: /*
87: * Structure describing each ppp unit.
88: */
89: struct ppp_softc {
90: struct ifnet sc_if; /* network-visible interface */
91: struct timeout sc_timo; /* timeout control (for ptys) */
92: int sc_unit; /* XXX unit number */
93: u_int sc_flags; /* control/status bits; see if_ppp.h */
94: void *sc_devp; /* pointer to device-dep structure */
95: void (*sc_start)(struct ppp_softc *); /* start output proc */
96: void (*sc_ctlp)(struct ppp_softc *); /* rcvd control pkt */
97: void (*sc_relinq)(struct ppp_softc *); /* relinquish ifunit */
98: u_int16_t sc_mru; /* max receive unit */
99: pid_t sc_xfer; /* used in transferring unit */
100: struct ifqueue sc_rawq; /* received packets */
101: struct ifqueue sc_inq; /* queue of input packets for daemon */
102: struct ifqueue sc_fastq; /* interactive output packet q */
103: struct mbuf *sc_togo; /* output packet ready to go */
104: struct mbuf *sc_npqueue; /* output packets not to be sent yet */
105: struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */
106: struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
107: caddr_t sc_bpf; /* hook for BPF */
108: enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
109: struct compressor *sc_xcomp; /* transmit compressor */
110: void *sc_xc_state; /* transmit compressor state */
111: struct compressor *sc_rcomp; /* receive decompressor */
112: void *sc_rc_state; /* receive decompressor state */
113: time_t sc_last_sent; /* time (secs) last NP pkt sent */
114: time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
115: struct bpf_program sc_pass_filt; /* filter for packets to pass */
116: struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
117: #ifdef VJC
118: struct slcompress *sc_comp; /* vjc control buffer */
119: #endif
120:
121: /* Device-dependent part for async lines. */
122: ext_accm sc_asyncmap; /* async control character map */
123: u_int32_t sc_rasyncmap; /* receive async control char map */
124: struct mbuf *sc_outm; /* mbuf chain currently being output */
125: struct mbuf *sc_m; /* pointer to input mbuf chain */
126: struct mbuf *sc_mc; /* pointer to current input mbuf */
127: char *sc_mp; /* ptr to next char in input mbuf */
128: u_int16_t sc_ilen; /* length of input packet so far */
129: u_int16_t sc_fcs; /* FCS so far (input) */
130: u_int16_t sc_outfcs; /* FCS so far for output packet */
131: u_char sc_rawin[16]; /* chars as received */
132: int sc_rawin_count; /* # in sc_rawin */
133: LIST_ENTRY(ppp_softc) sc_list; /* all ppp interfaces */
134: };
135:
136: #ifdef _KERNEL
137: extern struct ppp_softc ppp_softc[];
138:
139: struct ppp_softc *pppalloc(pid_t pid);
140: void pppdealloc(struct ppp_softc *sc);
141: int pppioctl(struct ppp_softc *sc, u_long cmd, caddr_t data,
142: int flag, struct proc *p);
143: void ppppktin(struct ppp_softc *sc, struct mbuf *m, int lost);
144: struct mbuf *ppp_dequeue(struct ppp_softc *sc);
145: void ppp_restart(struct ppp_softc *sc);
146: int pppoutput(struct ifnet *, struct mbuf *,
147: struct sockaddr *, struct rtentry *);
148: #endif /* _KERNEL */
149: #endif /* _NET_IF_PPPVAR_H_ */
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