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1/*
2 * if_ppp.h - Point-to-Point Protocol definitions.
3 *
4 * Copyright (c) 1989 Carnegie Mellon University.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by Carnegie Mellon University. The name of the
13 * University may not be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 */
20
21/*
22 * ==FILEVERSION 20050812==
23 *
24 * NOTE TO MAINTAINERS:
25 * If you modify this file at all, please set the above date.
26 * if_ppp.h is shipped with a PPP distribution as well as with the kernel;
27 * if everyone increases the FILEVERSION number above, then scripts
28 * can do the right thing when deciding whether to install a new if_ppp.h
29 * file. Don't change the format of that line otherwise, so the
30 * installation script can recognize it.
31 */
32
33#ifndef _IF_PPP_H_
34#define _IF_PPP_H_
35
36#include <linux/types.h>
37#include <linux/compiler.h>
38
39/*
40 * Packet sizes
41 */
42
43#define PPP_MTU 1500 /* Default MTU (size of Info field) */
44#define PPP_MAXMRU 65000 /* Largest MRU we allow */
45#define PROTO_IPX 0x002b /* protocol numbers */
46#define PROTO_DNA_RT 0x0027 /* DNA Routing */
47
48
49/*
50 * Bit definitions for flags.
51 */
52
53#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */
54#define SC_COMP_AC 0x00000002 /* header compression (output) */
55#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */
56#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */
57#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */
58#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */
59#define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */
60#define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */
61#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */
62#define SC_LOOP_TRAFFIC 0x00000200 /* send traffic to pppd */
63#define SC_MULTILINK 0x00000400 /* do multilink encapsulation */
64#define SC_MP_SHORTSEQ 0x00000800 /* use short MP sequence numbers */
65#define SC_COMP_RUN 0x00001000 /* compressor has been inited */
66#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */
67#define SC_MP_XSHORTSEQ 0x00004000 /* transmit short MP seq numbers */
68#define SC_DEBUG 0x00010000 /* enable debug messages */
69#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */
70#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */
71#define SC_LOG_RAWIN 0x00080000 /* log all chars received */
72#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */
73#define SC_SYNC 0x00200000 /* synchronous serial mode */
74#define SC_MUST_COMP 0x00400000 /* no uncompressed packets may be sent or received */
75#define SC_MASK 0x0f600fff /* bits that user can change */
76
77/* state bits */
78#define SC_XMIT_BUSY 0x10000000 /* (used by isdn_ppp?) */
79#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */
80#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */
81#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */
82#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */
83#define SC_DC_FERROR 0x00800000 /* fatal decomp error detected */
84#define SC_DC_ERROR 0x00400000 /* non-fatal decomp error detected */
85
86/*
87 * Ioctl definitions.
88 */
89
90struct npioctl {
91 int protocol; /* PPP protocol, e.g. PPP_IP */
92 enum NPmode mode;
93};
94
95/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
96struct ppp_option_data {
97 __u8 __user *ptr;
98 __u32 length;
99 int transmit;
100};
101
102struct ifpppstatsreq {
103 struct ifreq b;
104 struct ppp_stats stats; /* statistic information */
105};
106
107struct ifpppcstatsreq {
108 struct ifreq b;
109 struct ppp_comp_stats stats;
110};
111
112/* For PPPIOCGL2TPSTATS */
113struct pppol2tp_ioc_stats {
114 __u16 tunnel_id; /* redundant */
115 __u16 session_id; /* if zero, get tunnel stats */
116 __u32 using_ipsec:1; /* valid only for session_id == 0 */
117 __aligned_u64 tx_packets;
118 __aligned_u64 tx_bytes;
119 __aligned_u64 tx_errors;
120 __aligned_u64 rx_packets;
121 __aligned_u64 rx_bytes;
122 __aligned_u64 rx_seq_discards;
123 __aligned_u64 rx_oos_packets;
124 __aligned_u64 rx_errors;
125};
126
127#define ifr__name b.ifr_ifrn.ifrn_name
128#define stats_ptr b.ifr_ifru.ifru_data
129
130/*
131 * Ioctl definitions.
132 */
133
134#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
135#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
136#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */
137#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */
138#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */
139#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */
140#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */
141#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */
142#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */
143#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */
144#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
145#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
146#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */
147#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)
148#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */
149#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */
150#define PPPIOCSPASS _IOW('t', 71, struct sock_fprog) /* set pass filter */
151#define PPPIOCSACTIVE _IOW('t', 70, struct sock_fprog) /* set active filt */
152#define PPPIOCGDEBUG _IOR('t', 65, int) /* Read debug level */
153#define PPPIOCSDEBUG _IOW('t', 64, int) /* Set debug level */
154#define PPPIOCGIDLE _IOR('t', 63, struct ppp_idle) /* get idle time */
155#define PPPIOCNEWUNIT _IOWR('t', 62, int) /* create new ppp unit */
156#define PPPIOCATTACH _IOW('t', 61, int) /* attach to ppp unit */
157#define PPPIOCDETACH _IOW('t', 60, int) /* detach from ppp unit/chan */
158#define PPPIOCSMRRU _IOW('t', 59, int) /* set multilink MRU */
159#define PPPIOCCONNECT _IOW('t', 58, int) /* connect channel to unit */
160#define PPPIOCDISCONN _IO('t', 57) /* disconnect channel */
161#define PPPIOCATTCHAN _IOW('t', 56, int) /* attach to ppp channel */
162#define PPPIOCGCHAN _IOR('t', 55, int) /* get ppp channel number */
163#define PPPIOCGL2TPSTATS _IOR('t', 54, struct pppol2tp_ioc_stats)
164
165#define SIOCGPPPSTATS (SIOCDEVPRIVATE + 0)
166#define SIOCGPPPVER (SIOCDEVPRIVATE + 1) /* NEVER change this!! */
167#define SIOCGPPPCSTATS (SIOCDEVPRIVATE + 2)
168
169#if !defined(ifr_mtu)
170#define ifr_mtu ifr_ifru.ifru_metric
171#endif
172
173#endif /* _IF_PPP_H_ */