The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/net/if_ppp.h

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    1 /*
    2  * if_ppp.h - Point-to-Point Protocol definitions.
    3  */
    4 
    5 /*-
    6  * Copyright (c) 1989 Carnegie Mellon University.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms are permitted
   10  * provided that the above copyright notice and this paragraph are
   11  * duplicated in all such forms and that any documentation,
   12  * advertising materials, and other materials related to such
   13  * distribution and use acknowledge that the software was developed
   14  * by Carnegie Mellon University.  The name of the
   15  * University may not be used to endorse or promote products derived
   16  * from this software without specific prior written permission.
   17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
   19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
   20  *
   21  * $FreeBSD$
   22  */
   23 
   24 #ifndef _IF_PPP_H_
   25 #define _IF_PPP_H_
   26 
   27 /* XXX this used to be self-contained. */
   28 #include <net/ppp_defs.h>
   29 #include <net/if.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_ */

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