sys/net/if_ppp.h

   1 /*      $NetBSD: if_ppp.h,v 1.24 2008/11/25 02:40:36 cube Exp $ */
   2 /*      Id: if_ppp.h,v 1.16 1997/04/30 05:46:04 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  * Bit definitions for flags.
  51  */
  52 #define SC_COMP_PROT    0x00000001      /* protocol compression (output) */
  53 #define SC_COMP_AC      0x00000002      /* header compression (output) */
  54 #define SC_COMP_TCP     0x00000004      /* TCP (VJ) compression (output) */
  55 #define SC_NO_TCP_CCID  0x00000008      /* disable VJ connection-id comp. */
  56 #define SC_REJ_COMP_AC  0x00000010      /* reject adrs/ctrl comp. on input */
  57 #define SC_REJ_COMP_TCP 0x00000020      /* reject TCP (VJ) comp. on input */
  58 #define SC_CCP_OPEN     0x00000040      /* Look at CCP packets */
  59 #define SC_CCP_UP       0x00000080      /* May send/recv compressed packets */
  60 #define SC_DEBUG        0x00010000      /* enable debug messages */
  61 #define SC_LOG_INPKT    0x00020000      /* log contents of good pkts recvd */
  62 #define SC_LOG_OUTPKT   0x00040000      /* log contents of pkts sent */
  63 #define SC_LOG_RAWIN    0x00080000      /* log all chars received */
  64 #define SC_LOG_FLUSH    0x00100000      /* log all chars flushed */
  65 #define SC_SYNC         0x00200000      /* synchronous HDLC */
  66 #define SC_RCV_B7_0     0x01000000      /* have rcvd char with bit 7 = 0 */
  67 #define SC_RCV_B7_1     0x02000000      /* have rcvd char with bit 7 = 1 */
  68 #define SC_RCV_EVNP     0x04000000      /* have rcvd char with even parity */
  69 #define SC_RCV_ODDP     0x08000000      /* have rcvd char with odd parity */
  70
  71 #define SC_MASK         0x0fff00ff      /* bits that user can change */
  72
  73 /*
  74  * State bits in sc_flags, not changeable by user.
  75  */
  76 #define SC_TIMEOUT      0x00000400      /* timeout is currently pending */
  77 #define SC_VJ_RESET     0x00000800      /* need to reset VJ decomp */
  78 #define SC_COMP_RUN     0x00001000      /* compressor has been inited */
  79 #define SC_DECOMP_RUN   0x00002000      /* decompressor has been inited */
  80 #define SC_DC_ERROR     0x00004000      /* non-fatal decomp error detected */
  81 #define SC_DC_FERROR    0x00008000      /* fatal decomp error detected */
  82 #define SC_TBUSY        0x10000000      /* xmitter doesn't need a packet yet */
  83 #define SC_PKTLOST      0x20000000      /* have lost or dropped a packet */
  84 #define SC_FLUSH        0x40000000      /* flush input until next PPP_FLAG */
  85 #define SC_ESCAPED      0x80000000      /* saw a PPP_ESCAPE */
  86
  87 /*
  88  * Ioctl definitions.
  89  */
  90
  91 struct npioctl {
  92     int         protocol;       /* PPP procotol, e.g. PPP_IP */
  93     enum NPmode mode;
  94 };
  95
  96 /* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
  97 struct ppp_option_data {
  98         u_char  *ptr;
  99         u_int   length;
 100         int     transmit;
 101 };
 102
 103 struct ifpppstatsreq {
 104     char ifr_name[IFNAMSIZ];
 105     struct ppp_stats stats;
 106 };
 107
 108 struct ifpppcstatsreq {
 109     char ifr_name[IFNAMSIZ];
 110     struct ppp_comp_stats stats;
 111 };
 112
 113 struct ppp_rawin {
 114     u_char buf[63];
 115     u_char count;
 116 };
 117
 118 /*
 119  * Ioctl definitions.
 120  */
 121
 122 #define PPPIOCGRAWIN    _IOR('t', 91, struct ppp_rawin) /* get raw input */
 123 #define PPPIOCGFLAGS    _IOR('t', 90, int)      /* get configuration flags */
 124 #define PPPIOCSFLAGS    _IOW('t', 89, int)      /* set configuration flags */
 125 #define PPPIOCGASYNCMAP _IOR('t', 88, int)      /* get async map */
 126 #define PPPIOCSASYNCMAP _IOW('t', 87, int)      /* set async map */
 127 #define PPPIOCGUNIT     _IOR('t', 86, int)      /* get ppp unit number */
 128 #define PPPIOCGRASYNCMAP _IOR('t', 85, int)     /* get receive async map */
 129 #define PPPIOCSRASYNCMAP _IOW('t', 84, int)     /* set receive async map */
 130 #define PPPIOCGMRU      _IOR('t', 83, int)      /* get max receive unit */
 131 #define PPPIOCSMRU      _IOW('t', 82, int)      /* set max receive unit */
 132 #define PPPIOCSMAXCID   _IOW('t', 81, int)      /* set VJ max slot ID */
 133 #define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
 134 #define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
 135 #define PPPIOCXFERUNIT  _IO('t', 78)            /* transfer PPP unit */
 136 #define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)
 137 #define PPPIOCGNPMODE   _IOWR('t', 76, struct npioctl) /* get NP mode */
 138 #define PPPIOCSNPMODE   _IOW('t', 75, struct npioctl)  /* set NP mode */
 139 #define PPPIOCGIDLE     _IOR('t', 74, struct ppp_idle) /* get idle time */
 140 #ifdef PPP_FILTER
 141 /*
 142  * XXX These are deprecated; they can no longer be used, because they
 143  * XXX don't play well with multiple encaps.  The defs are here so that
 144  * XXX we can return decent errors to old pppds, and so that new pppds
 145  * XXX will work with old kernels.
 146  */
 147 #define PPPIOCSPASS     _IOW('t', 71, struct bpf_program) /* set pass filter */
 148 #define PPPIOCSACTIVE   _IOW('t', 70, struct bpf_program) /* set active filt */
 149
 150 /*
 151  * Use these instead.
 152  */
 153 #define PPPIOCSIPASS    _IOW('t', 69, struct bpf_program) /* set in pass flt */
 154 #define PPPIOCSOPASS    _IOW('t', 68, struct bpf_program) /* set out pass flt */
 155 #define PPPIOCSIACTIVE  _IOW('t', 67, struct bpf_program) /* set in act flt */
 156 #define PPPIOCSOACTIVE  _IOW('t', 66, struct bpf_program) /* set out act flt */
 157 #endif /* PPP_FILTER */
 158
 159 /* PPPIOC[GS]MTU are alternatives to SIOC[GS]IFMTU, used under Ultrix */
 160 #define PPPIOCGMTU      _IOR('t', 73, int)      /* get interface MTU */
 161 #define PPPIOCSMTU      _IOW('t', 72, int)      /* set interface MTU */
 162
 163 /*
 164  * These two are interface ioctls so that pppstats can do them on
 165  * a socket without having to open the serial device.
 166  */
 167 #define SIOCGPPPSTATS   _IOWR('i', 123, struct ifpppstatsreq)
 168 #define SIOCGPPPCSTATS  _IOWR('i', 122, struct ifpppcstatsreq)
 169
 170 #if !defined(ifr_mtu)
 171 #define ifr_mtu ifr_ifru.ifru_metric
 172 #endif
 173
 174 #if defined(_KERNEL) || defined(KERNEL)
 175 void    pppattach(void);
 176
 177 struct compressor;
 178 int     ppp_register_compressor(struct compressor *, size_t);
 179 int     ppp_unregister_compressor(struct compressor *, size_t);
 180 #endif
 181 #endif /* !_NET_IF_PPP_H_ */