1/* $OpenBSD: if_ppp.h,v 1.10 2022/01/02 22:36:03 jsg Exp $ */
2/* $NetBSD: if_ppp.h,v 1.11 1996/03/15 02:28:05 paulus Exp $ */
3
4/*
5 * if_ppp.h - Point-to-Point Protocol definitions.
6 *
7 * Copyright (c) 1984-2000 Carnegie Mellon University. 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 "Carnegie Mellon University" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For permission or any legal
24 * details, please contact
25 * Office of Technology Transfer
26 * Carnegie Mellon University
27 * 5000 Forbes Avenue
28 * Pittsburgh, PA 15213-3890
29 * (412) 268-4387, fax: (412) 268-7395
30 * tech-transfer@andrew.cmu.edu
31 *
32 * 4. Redistributions of any form whatsoever must retain the following
33 * acknowledgment:
34 * "This product includes software developed by Computing Services
35 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
36 *
37 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
38 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
39 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
40 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
41 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
42 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
43 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
44 */
45
46#ifndef _NET_IF_PPP_H_
47#define _NET_IF_PPP_H_
48
49/*
50 * Packet sizes
51 */
52#define PPP_MTU 1500 /* Default MTU (size of Info field) */
53#define PPP_MAXMRU 65000 /* Largest MRU we allow */
54
55/*
56 * Bit definitions for flags.
57 */
58#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */
59#define SC_COMP_AC 0x00000002 /* header compression (output) */
60#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */
61#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */
62#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */
63#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */
64#define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */
65#define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */
66#define SC_DEBUG 0x00010000 /* enable debug messages */
67#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */
68#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */
69#define SC_LOG_RAWIN 0x00080000 /* log all chars received */
70#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */
71#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */
72#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */
73#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */
74#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */
75#define SC_MASK 0x0fff00ff /* bits that user can change */
76
77/*
78 * State bits in sc_flags, not changeable by user.
79 */
80#define SC_TIMEOUT 0x00000400 /* timeout is currently pending */
81#define SC_VJ_RESET 0x00000800 /* need to reset VJ decomp */
82#define SC_COMP_RUN 0x00001000 /* compressor has been inited */
83#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */
84#define SC_DC_ERROR 0x00004000 /* non-fatal decomp error detected */
85#define SC_DC_FERROR 0x00008000 /* fatal decomp error detected */
86#define SC_TBUSY 0x10000000 /* xmitter doesn't need a packet yet */
87#define SC_PKTLOST 0x20000000 /* have lost or dropped a packet */
88#define SC_FLUSH 0x40000000 /* flush input until next PPP_FLAG */
89#define SC_ESCAPED 0x80000000 /* saw a PPP_ESCAPE */
90
91/*
92 * Ioctl definitions.
93 */
94
95struct npioctl {
96 int protocol; /* PPP protocol, e.g. PPP_IP */
97 enum NPmode mode;
98};
99
100/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
101struct ppp_option_data {
102 u_char *ptr;
103 u_int length;
104 int transmit;
105};
106
107struct ifpppstatsreq {
108 char ifr_name[IFNAMSIZ];
109 struct ppp_stats stats;
110};
111
112struct ifpppcstatsreq {
113 char ifr_name[IFNAMSIZ];
114 struct ppp_comp_stats stats;
115};
116
117/*
118 * Ioctl definitions.
119 */
120
121#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
122#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
123#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */
124#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */
125#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */
126#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */
127#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */
128#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */
129#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */
130#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */
131#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
132#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
133#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */
134#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)
135#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */
136#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */
137#define PPPIOCGIDLE _IOR('t', 74, struct ppp_idle) /* get idle time */
138#define PPPIOCSPASS _IOW('t', 71, struct bpf_program) /* set pass filter */
139#define PPPIOCSACTIVE _IOW('t', 70, struct bpf_program) /* set active filt */
140
141/*
142 * These two are interface ioctls so that pppstats can do them on
143 * a socket without having to open the serial device.
144 */
145#define SIOCGPPPSTATS _IOWR('i', 123, struct ifpppstatsreq)
146#define SIOCGPPPCSTATS _IOWR('i', 122, struct ifpppcstatsreq)
147
148#ifdef _KERNEL
149void pppattach(void);
150int pppoutput(struct ifnet *, struct mbuf *, struct sockaddr *,
151 struct rtentry *);
152void pppintr(void);
153#endif
154#endif /* _NET_IF_PPP_H_ */