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001: /*
002:  * if_ppp.h - Point-to-Point Protocol definitions.
003:  *
004:  * Copyright (c) 1989 Carnegie Mellon University.
005:  * All rights reserved.
006:  *
007:  * Redistribution and use in source and binary forms are permitted
008:  * provided that the above copyright notice and this paragraph are
009:  * duplicated in all such forms and that any documentation,
010:  * advertising materials, and other materials related to such
011:  * distribution and use acknowledge that the software was developed
012:  * by Carnegie Mellon University.  The name of the
013:  * University may not be used to endorse or promote products derived
014:  * from this software without specific prior written permission.
015:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
016:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
017:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
018:  *
019:  */
020: 
021: /*
022:  *  ==FILEVERSION 20050812==
023:  *
024:  *  NOTE TO MAINTAINERS:
025:  *     If you modify this file at all, please set the above date.
026:  *     if_ppp.h is shipped with a PPP distribution as well as with the kernel;
027:  *     if everyone increases the FILEVERSION number above, then scripts
028:  *     can do the right thing when deciding whether to install a new if_ppp.h
029:  *     file.  Don't change the format of that line otherwise, so the
030:  *     installation script can recognize it.
031:  */
032: 
033: #ifndef _IF_PPP_H_
034: #define _IF_PPP_H_
035: 
036: #include <linux/types.h>
037: 
038: 
039: /*
040:  * Packet sizes
041:  */
042: 
043: #define PPP_MTU         1500    /* Default MTU (size of Info field) */
044: #define PPP_MAXMRU      65000   /* Largest MRU we allow */
045: #define PROTO_IPX       0x002b  /* protocol numbers */
046: #define PROTO_DNA_RT    0x0027  /* DNA Routing */
047: 
048: 
049: /*
050:  * Bit definitions for flags.
051:  */
052: 
053: #define SC_COMP_PROT    0x00000001      /* protocol compression (output) */
054: #define SC_COMP_AC      0x00000002      /* header compression (output) */
055: #define SC_COMP_TCP     0x00000004      /* TCP (VJ) compression (output) */
056: #define SC_NO_TCP_CCID  0x00000008      /* disable VJ connection-id comp. */
057: #define SC_REJ_COMP_AC  0x00000010      /* reject adrs/ctrl comp. on input */
058: #define SC_REJ_COMP_TCP 0x00000020      /* reject TCP (VJ) comp. on input */
059: #define SC_CCP_OPEN     0x00000040      /* Look at CCP packets */
060: #define SC_CCP_UP       0x00000080      /* May send/recv compressed packets */
061: #define SC_ENABLE_IP    0x00000100      /* IP packets may be exchanged */
062: #define SC_LOOP_TRAFFIC 0x00000200      /* send traffic to pppd */
063: #define SC_MULTILINK    0x00000400      /* do multilink encapsulation */
064: #define SC_MP_SHORTSEQ  0x00000800      /* use short MP sequence numbers */
065: #define SC_COMP_RUN     0x00001000      /* compressor has been inited */
066: #define SC_DECOMP_RUN   0x00002000      /* decompressor has been inited */
067: #define SC_MP_XSHORTSEQ 0x00004000      /* transmit short MP seq numbers */
068: #define SC_DEBUG        0x00010000      /* enable debug messages */
069: #define SC_LOG_INPKT    0x00020000      /* log contents of good pkts recvd */
070: #define SC_LOG_OUTPKT   0x00040000      /* log contents of pkts sent */
071: #define SC_LOG_RAWIN    0x00080000      /* log all chars received */
072: #define SC_LOG_FLUSH    0x00100000      /* log all chars flushed */
073: #define SC_SYNC         0x00200000      /* synchronous serial mode */
074: #define SC_MUST_COMP    0x00400000      /* no uncompressed packets may be sent or received */
075: #define SC_MASK         0x0f600fff      /* bits that user can change */
076: 
077: /* state bits */
078: #define SC_XMIT_BUSY    0x10000000      /* (used by isdn_ppp?) */
079: #define SC_RCV_ODDP     0x08000000      /* have rcvd char with odd parity */
080: #define SC_RCV_EVNP     0x04000000      /* have rcvd char with even parity */
081: #define SC_RCV_B7_1     0x02000000      /* have rcvd char with bit 7 = 1 */
082: #define SC_RCV_B7_0     0x01000000      /* have rcvd char with bit 7 = 0 */
083: #define SC_DC_FERROR    0x00800000      /* fatal decomp error detected */
084: #define SC_DC_ERROR     0x00400000      /* non-fatal decomp error detected */
085: 
086: /*
087:  * Ioctl definitions.
088:  */
089: 
090: struct npioctl {
091:         int             protocol;       /* PPP protocol, e.g. PPP_IP */
092:         enum NPmode     mode;
093: };
094: 
095: /* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
096: struct ppp_option_data {
097:         __u8    *ptr;
098:         __u32   length;
099:         int     transmit;
100: };
101: 
102: struct ifpppstatsreq {
103:         struct ifreq     b;
104:         struct ppp_stats stats;                 /* statistic information */
105: };
106: 
107: struct ifpppcstatsreq {
108:         struct ifreq          b;
109:         struct ppp_comp_stats stats;
110: };
111: 
112: /* For PPPIOCGL2TPSTATS */
113: struct 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_ */
174: 

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