1 | /* $NetBSD: if_pppvar.h,v 1.28 2016/04/28 00:16:56 ozaki-r Exp $ */ |
2 | /* Id: if_pppvar.h,v 1.3 1996/07/01 01:04:37 paulus Exp */ |
3 | |
4 | /* |
5 | * if_pppvar.h - private structures and declarations for PPP. |
6 | * |
7 | * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved. |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * |
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 |
19 | * distribution. |
20 | * |
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. |
24 | * |
25 | * 4. Redistributions of any form whatsoever must retain the following |
26 | * acknowledgment: |
27 | * "This product includes software developed by Paul Mackerras |
28 | * <paulus@samba.org>". |
29 | * |
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. |
37 | * |
38 | * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. |
39 | * |
40 | * Redistribution and use in source and binary forms, with or without |
41 | * modification, are permitted provided that the following conditions |
42 | * are met: |
43 | * |
44 | * 1. Redistributions of source code must retain the above copyright |
45 | * notice, this list of conditions and the following disclaimer. |
46 | * |
47 | * 2. Redistributions in binary form must reproduce the above copyright |
48 | * notice, this list of conditions and the following disclaimer in |
49 | * the documentation and/or other materials provided with the |
50 | * distribution. |
51 | * |
52 | * 3. The name "Carnegie Mellon University" must not be used to |
53 | * endorse or promote products derived from this software without |
54 | * prior written permission. For permission or any legal |
55 | * details, please contact |
56 | * Office of Technology Transfer |
57 | * Carnegie Mellon University |
58 | * 5000 Forbes Avenue |
59 | * Pittsburgh, PA 15213-3890 |
60 | * (412) 268-4387, fax: (412) 268-7395 |
61 | * tech-transfer@andrew.cmu.edu |
62 | * |
63 | * 4. Redistributions of any form whatsoever must retain the following |
64 | * acknowledgment: |
65 | * "This product includes software developed by Computing Services |
66 | * at Carnegie Mellon University (http://www.cmu.edu/computing/)." |
67 | * |
68 | * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO |
69 | * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
70 | * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE |
71 | * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
72 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN |
73 | * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
74 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
75 | */ |
76 | |
77 | #ifndef _NET_IF_PPPVAR_H_ |
78 | #define _NET_IF_PPPVAR_H_ |
79 | |
80 | #include <sys/callout.h> |
81 | |
82 | /* |
83 | * Supported network protocols. These values are used for |
84 | * indexing sc_npmode. |
85 | */ |
86 | #define NP_IP 0 /* Internet Protocol */ |
87 | #define NP_IPV6 1 /* Internet Protocol version 6 */ |
88 | #define NUM_NP 2 /* Number of NPs. */ |
89 | |
90 | /* |
91 | * Structure describing each ppp unit. |
92 | */ |
93 | struct ppp_softc { |
94 | struct ifnet sc_if; /* network-visible interface */ |
95 | int sc_unit; /* XXX unit number */ |
96 | u_int sc_flags; /* control/status bits; see if_ppp.h */ |
97 | void *sc_devp; /* pointer to device-dep structure */ |
98 | void (*sc_start)(struct ppp_softc *); /* start output proc */ |
99 | void (*sc_ctlp)(struct ppp_softc *); /* rcvd control pkt */ |
100 | void (*sc_relinq)(struct ppp_softc *); /* relinquish ifunit */ |
101 | struct callout sc_timo_ch; /* timeout callout */ |
102 | uint16_t sc_mru; /* max receive unit */ |
103 | pid_t sc_xfer; /* used in transferring unit */ |
104 | struct ifqueue sc_rawq; /* received packets */ |
105 | struct ifqueue sc_inq; /* queue of input packets for daemon */ |
106 | struct ifqueue sc_fastq; /* interactive output packet q */ |
107 | struct mbuf *sc_togo; /* output packet ready to go */ |
108 | struct mbuf *sc_npqueue; /* output packets not to be sent yet */ |
109 | struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */ |
110 | struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */ |
111 | enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */ |
112 | struct compressor *sc_xcomp; /* transmit compressor */ |
113 | void *sc_xc_state; /* transmit compressor state */ |
114 | struct compressor *sc_rcomp; /* receive decompressor */ |
115 | void *sc_rc_state; /* receive decompressor state */ |
116 | time_t sc_last_sent; /* time (secs) last NP pkt sent */ |
117 | time_t sc_last_recv; /* time (secs) last NP pkt rcvd */ |
118 | void *sc_si; /* software interrupt handle */ |
119 | #ifdef PPP_FILTER |
120 | /* Filter for packets to pass. */ |
121 | struct bpf_program sc_pass_filt_in; |
122 | struct bpf_program sc_pass_filt_out; |
123 | |
124 | /* Filter for "non-idle" packets. */ |
125 | struct bpf_program sc_active_filt_in; |
126 | struct bpf_program sc_active_filt_out; |
127 | #endif /* PPP_FILTER */ |
128 | #ifdef VJC |
129 | struct slcompress *sc_comp; /* vjc control buffer */ |
130 | #endif |
131 | |
132 | /* Device-dependent part for async lines. */ |
133 | ext_accm sc_asyncmap; /* async control character map */ |
134 | uint32_t sc_rasyncmap; /* receive async control char map */ |
135 | struct mbuf *sc_outm; /* mbuf chain currently being output */ |
136 | struct mbuf *sc_m; /* pointer to input mbuf chain */ |
137 | struct mbuf *sc_mc; /* pointer to current input mbuf */ |
138 | char *sc_mp; /* ptr to next char in input mbuf */ |
139 | uint16_t sc_ilen; /* length of input packet so far */ |
140 | uint16_t sc_fcs; /* FCS so far (input) */ |
141 | uint16_t sc_outfcs; /* FCS so far for output packet */ |
142 | uint16_t sc_maxfastq; /* Maximum number of packets that |
143 | * can be received back-to-back in |
144 | * the high priority queue */ |
145 | uint8_t sc_nfastq; /* Number of packets received |
146 | * back-to-back in the high priority |
147 | * queue */ |
148 | u_char sc_rawin_start; /* current char start */ |
149 | struct ppp_rawin sc_rawin; /* chars as received */ |
150 | LIST_ENTRY(ppp_softc) sc_iflist; |
151 | }; |
152 | |
153 | #ifdef _KERNEL |
154 | |
155 | struct ppp_softc *pppalloc(pid_t); |
156 | void pppdealloc(struct ppp_softc *); |
157 | int pppioctl(struct ppp_softc *, u_long, void *, int, struct lwp *); |
158 | void ppp_restart(struct ppp_softc *); |
159 | void ppppktin(struct ppp_softc *, struct mbuf *, int); |
160 | struct mbuf *ppp_dequeue(struct ppp_softc *); |
161 | int pppoutput(struct ifnet *, struct mbuf *, const struct sockaddr *, |
162 | const struct rtentry *); |
163 | #endif /* _KERNEL */ |
164 | |
165 | #endif /* !_NET_IF_PPPVAR_H_ */ |
166 | |