include/linux/if_ppp.h

   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
  90 struct 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 */
  96 struct ppp_option_data {
  97         __u8    __user *ptr;
  98         __u32   length;
  99         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_ */