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/*      From: if_ppp.h,v 1.3 1995/06/12 11:36:50 paulus Exp */

/*

 * if_ppp.h - Point-to-Point Protocol definitions.

 *

 * Copyright (c) 1989 Carnegie Mellon University.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY AND

 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,

 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER

 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN

 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 */

/*

 *  ==FILEVERSION 960926==

 *

 *  NOTE TO MAINTAINERS:

 *     If you modify this file at all, please set the above date.

 *     if_ppp.h is shipped with a PPP distribution as well as with the kernel;

 *     if everyone increases the FILEVERSION number above, then scripts

 *     can do the right thing when deciding whether to install a new if_ppp.h

 *     file.  Don't change the format of that line otherwise, so the

 *     installation script can recognize it.

 */

#ifndef __NET_IF_PPP_H

#define __NET_IF_PPP_H 1

#include <sys/types.h>

#include <sys/cdefs.h>

#include <net/if.h>

#include <sys/ioctl.h>

#include <net/ppp_defs.h>

__BEGIN_DECLS

/*

 * Packet sizes

 */

#define PPP_MTU         1500    /* Default MTU (size of Info field) */

#define PPP_MAXMRU      65000   /* Largest MRU we allow */

#define PPP_VERSION     "2.2.0"

#define PPP_MAGIC       0x5002  /* Magic value for the ppp structure */

#define PROTO_IPX       0x002b  /* protocol numbers */

#define PROTO_DNA_RT    0x0027  /* DNA Routing */

/*

 * Bit definitions for flags.

 */

#define SC_COMP_PROT    0x00000001      /* protocol compression (output) */

#define SC_COMP_AC      0x00000002      /* header compression (output) */

#define SC_COMP_TCP     0x00000004      /* TCP (VJ) compression (output) */

#define SC_NO_TCP_CCID  0x00000008      /* disable VJ connection-id comp. */

#define SC_REJ_COMP_AC  0x00000010      /* reject adrs/ctrl comp. on input */

#define SC_REJ_COMP_TCP 0x00000020      /* reject TCP (VJ) comp. on input */

#define SC_CCP_OPEN     0x00000040      /* Look at CCP packets */

#define SC_CCP_UP       0x00000080      /* May send/recv compressed packets */

#define SC_ENABLE_IP    0x00000100      /* IP packets may be exchanged */

#define SC_COMP_RUN     0x00001000      /* compressor has been inited */

#define SC_DECOMP_RUN   0x00002000      /* decompressor has been inited */

#define SC_DEBUG        0x00010000      /* enable debug messages */

#define SC_LOG_INPKT    0x00020000      /* log contents of good pkts recvd */

#define SC_LOG_OUTPKT   0x00040000      /* log contents of pkts sent */

#define SC_LOG_RAWIN    0x00080000      /* log all chars received */

#define SC_LOG_FLUSH    0x00100000      /* log all chars flushed */

#define SC_MASK         0x0fE0ffff      /* bits that user can change */

/* state bits */

#define SC_ESCAPED      0x80000000      /* saw a PPP_ESCAPE */

#define SC_FLUSH        0x40000000      /* flush input until next PPP_FLAG */

#define SC_VJ_RESET     0x20000000      /* Need to reset the VJ decompressor */

#define SC_XMIT_BUSY    0x10000000      /* ppp_write_wakeup is active */

#define SC_RCV_ODDP     0x08000000      /* have rcvd char with odd parity */

#define SC_RCV_EVNP     0x04000000      /* have rcvd char with even parity */

#define SC_RCV_B7_1     0x02000000      /* have rcvd char with bit 7 = 1 */

#define SC_RCV_B7_0     0x01000000      /* have rcvd char with bit 7 = 0 */

#define SC_DC_FERROR    0x00800000      /* fatal decomp error detected */

#define SC_DC_ERROR     0x00400000      /* non-fatal decomp error detected */

/*

 * Ioctl definitions.

 */

struct npioctl {

    int         protocol;       /* PPP protocol, e.g. PPP_IP */

    enum NPmode mode;

};

/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */

struct ppp_option_data {

        u_int8_t  *ptr;

        u_int32_t length;

        int       transmit;

};

struct ifpppstatsreq {

  struct ifreq     b;

  struct ppp_stats stats;                       /* statistic information */

};

struct ifpppcstatsreq {

  struct ifreq          b;

  struct ppp_comp_stats stats;

};

#define ifr__name       b.ifr_ifrn.ifrn_name

#define stats_ptr       b.ifr_ifru.ifru_data

/*

 * Ioctl definitions.

 */

#define PPPIOCGFLAGS    _IOR('t', 90, int)      /* get configuration flags */

#define PPPIOCSFLAGS    _IOW('t', 89, int)      /* set configuration flags */

#define PPPIOCGASYNCMAP _IOR('t', 88, int)      /* get async map */

#define PPPIOCSASYNCMAP _IOW('t', 87, int)      /* set async map */

#define PPPIOCGUNIT     _IOR('t', 86, int)      /* get ppp unit number */

#define PPPIOCGRASYNCMAP _IOR('t', 85, int)     /* get receive async map */

#define PPPIOCSRASYNCMAP _IOW('t', 84, int)     /* set receive async map */

#define PPPIOCGMRU      _IOR('t', 83, int)      /* get max receive unit */

#define PPPIOCSMRU      _IOW('t', 82, int)      /* set max receive unit */

#define PPPIOCSMAXCID   _IOW('t', 81, int)      /* set VJ max slot ID */

#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */

#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */

#define PPPIOCXFERUNIT  _IO('t', 78)            /* transfer PPP unit */

#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)

#define PPPIOCGNPMODE   _IOWR('t', 76, struct npioctl) /* get NP mode */

#define PPPIOCSNPMODE   _IOW('t', 75, struct npioctl)  /* set NP mode */

#define PPPIOCGDEBUG    _IOR('t', 65, int)      /* Read debug level */

#define PPPIOCSDEBUG    _IOW('t', 64, int)      /* Set debug level */

#define PPPIOCGIDLE     _IOR('t', 63, struct ppp_idle) /* get idle time */

#define SIOCGPPPSTATS   (SIOCDEVPRIVATE + 0)

#define SIOCGPPPVER     (SIOCDEVPRIVATE + 1)  /* NEVER change this!! */

#define SIOCGPPPCSTATS  (SIOCDEVPRIVATE + 2)

#if !defined(ifr_mtu)

#define ifr_mtu ifr_ifru.ifru_metric

#endif

__END_DECLS

#endif /* net/if_ppp.h */