sys/net/ppp/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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  18  *
  19  * $FreeBSD: src/sys/net/if_ppp.h,v 1.14 1999/08/28 00:48:20 peter Exp $
  20  * $DragonFly: src/sys/net/ppp/if_ppp.h,v 1.3 2003/08/07 21:17:30 dillon Exp $
  21  */
  22
  23 #ifndef _IF_PPP_H_
  24 #define _IF_PPP_H_
  25
  26 /* XXX this used to be self-contained. */
  27 #include <net/ppp_layer/ppp_defs.h>
  28 #include <net/if.h>
  29 #include <sys/ioccom.h>
  30
  31 /*
  32  * Packet sizes
  33  */
  34 #define PPP_MTU         1500    /* Default MTU (size of Info field) */
  35 #define PPP_MAXMRU      65000   /* Largest MRU we allow */
  36 #define PPP_MAXMTU      16384   /* Largest MTU we allow */
  37
  38 /*
  39  * Bit definitions for flags.
  40  */
  41 #define SC_COMP_PROT    0x00000001      /* protocol compression (output) */
  42 #define SC_COMP_AC      0x00000002      /* header compression (output) */
  43 #define SC_COMP_TCP     0x00000004      /* TCP (VJ) compression (output) */
  44 #define SC_NO_TCP_CCID  0x00000008      /* disable VJ connection-id comp. */
  45 #define SC_REJ_COMP_AC  0x00000010      /* reject adrs/ctrl comp. on input */
  46 #define SC_REJ_COMP_TCP 0x00000020      /* reject TCP (VJ) comp. on input */
  47 #define SC_CCP_OPEN     0x00000040      /* Look at CCP packets */
  48 #define SC_CCP_UP       0x00000080      /* May send/recv compressed packets */
  49 #define SC_DEBUG        0x00010000      /* enable debug messages */
  50 #define SC_LOG_INPKT    0x00020000      /* log contents of good pkts recvd */
  51 #define SC_LOG_OUTPKT   0x00040000      /* log contents of pkts sent */
  52 #define SC_LOG_RAWIN    0x00080000      /* log all chars received */
  53 #define SC_LOG_FLUSH    0x00100000      /* log all chars flushed */
  54 #define SC_RCV_B7_0     0x01000000      /* have rcvd char with bit 7 = 0 */
  55 #define SC_RCV_B7_1     0x02000000      /* have rcvd char with bit 7 = 1 */
  56 #define SC_RCV_EVNP     0x04000000      /* have rcvd char with even parity */
  57 #define SC_RCV_ODDP     0x08000000      /* have rcvd char with odd parity */
  58 #define SC_MASK         0x0fff00ff      /* bits that user can change */
  59
  60 /*
  61  * State bits in sc_flags, not changeable by user.
  62  */
  63 #define SC_TIMEOUT      0x00000400      /* timeout is currently pending */
  64 #define SC_VJ_RESET     0x00000800      /* need to reset VJ decomp */
  65 #define SC_COMP_RUN     0x00001000      /* compressor has been initiated */
  66 #define SC_DECOMP_RUN   0x00002000      /* decompressor has been initiated */
  67 #define SC_DC_ERROR     0x00004000      /* non-fatal decomp error detected */
  68 #define SC_DC_FERROR    0x00008000      /* fatal decomp error detected */
  69 #define SC_TBUSY        0x10000000      /* xmitter doesn't need a packet yet */
  70 #define SC_PKTLOST      0x20000000      /* have lost or dropped a packet */
  71 #define SC_FLUSH        0x40000000      /* flush input until next PPP_FLAG */
  72 #define SC_ESCAPED      0x80000000      /* saw a PPP_ESCAPE */
  73
  74 /*
  75  * Ioctl definitions.
  76  */
  77
  78 struct npioctl {
  79     int         protocol;       /* PPP procotol, e.g. PPP_IP */
  80     enum NPmode mode;
  81 };
  82
  83 /* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
  84 struct ppp_option_data {
  85         u_char  *ptr;
  86         u_int   length;
  87         int     transmit;
  88 };
  89
  90 struct ifpppstatsreq {
  91     char ifr_name[IFNAMSIZ];
  92     struct ppp_stats stats;
  93 };
  94
  95 struct ifpppcstatsreq {
  96     char ifr_name[IFNAMSIZ];
  97     struct ppp_comp_stats stats;
  98 };
  99
 100 /*
 101  * Ioctl definitions.
 102  */
 103
 104 #define PPPIOCGFLAGS    _IOR('t', 90, int)      /* get configuration flags */
 105 #define PPPIOCSFLAGS    _IOW('t', 89, int)      /* set configuration flags */
 106 #define PPPIOCGASYNCMAP _IOR('t', 88, int)      /* get async map */
 107 #define PPPIOCSASYNCMAP _IOW('t', 87, int)      /* set async map */
 108 #define PPPIOCGUNIT     _IOR('t', 86, int)      /* get ppp unit number */
 109 #define PPPIOCGRASYNCMAP _IOR('t', 85, int)     /* get receive async map */
 110 #define PPPIOCSRASYNCMAP _IOW('t', 84, int)     /* set receive async map */
 111 #define PPPIOCGMRU      _IOR('t', 83, int)      /* get max receive unit */
 112 #define PPPIOCSMRU      _IOW('t', 82, int)      /* set max receive unit */
 113 #define PPPIOCSMAXCID   _IOW('t', 81, int)      /* set VJ max slot ID */
 114 #define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
 115 #define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
 116 #define PPPIOCXFERUNIT  _IO('t', 78)            /* transfer PPP unit */
 117 #define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)
 118 #define PPPIOCGNPMODE   _IOWR('t', 76, struct npioctl) /* get NP mode */
 119 #define PPPIOCSNPMODE   _IOW('t', 75, struct npioctl)  /* set NP mode */
 120 #define PPPIOCGIDLE     _IOR('t', 74, struct ppp_idle) /* get idle time */
 121 #define PPPIOCSPASS     _IOW('t', 71, struct bpf_program) /* set pass filter */
 122 #define PPPIOCSACTIVE   _IOW('t', 70, struct bpf_program) /* set active filt */
 123
 124 /* PPPIOC[GS]MTU are alternatives to SIOC[GS]IFMTU, used under Ultrix */
 125 #define PPPIOCGMTU      _IOR('t', 73, int)      /* get interface MTU */
 126 #define PPPIOCSMTU      _IOW('t', 72, int)      /* set interface MTU */
 127
 128 /*
 129  * These two are interface ioctls so that pppstats can do them on
 130  * a socket without having to open the serial device.
 131  */
 132 #define SIOCGPPPSTATS   _IOWR('i', 123, struct ifpppstatsreq)
 133 #define SIOCGPPPCSTATS  _IOWR('i', 122, struct ifpppcstatsreq)
 134
 135 #if !defined(ifr_mtu)
 136 #define ifr_mtu ifr_ifru.ifru_metric
 137 #endif
 138
 139 #endif /* _IF_PPP_H_ */