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      1 /*	From: if_ppp.h,v 1.3 1995/06/12 11:36:50 paulus Exp */
      2 
      3 /*
      4  * if_ppp.h - Point-to-Point Protocol definitions.
      5  *
      6  * Copyright (c) 1989 Carnegie Mellon University.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the University nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY AND
     21  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
     22  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE FOR ANY
     25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     27  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
     29  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     31  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /*
     36  *  ==FILEVERSION 960926==
     37  *
     38  *  NOTE TO MAINTAINERS:
     39  *     If you modify this file at all, please set the above date.
     40  *     if_ppp.h is shipped with a PPP distribution as well as with the kernel;
     41  *     if everyone increases the FILEVERSION number above, then scripts
     42  *     can do the right thing when deciding whether to install a new if_ppp.h
     43  *     file.  Don't change the format of that line otherwise, so the
     44  *     installation script can recognize it.
     45  */
     46 
     47 
     48 #ifndef __NET_IF_PPP_H
     49 #define __NET_IF_PPP_H 1
     50 
     51 #include <sys/types.h>
     52 #include <sys/cdefs.h>
     53 
     54 #include <net/if.h>
     55 #include <sys/ioctl.h>
     56 #include <net/ppp_defs.h>
     57 
     58 __BEGIN_DECLS
     59 
     60 /*
     61  * Packet sizes
     62  */
     63 
     64 #define	PPP_MTU		1500	/* Default MTU (size of Info field) */
     65 #define PPP_MAXMRU	65000	/* Largest MRU we allow */
     66 #define PPP_VERSION	"2.2.0"
     67 #define PPP_MAGIC	0x5002	/* Magic value for the ppp structure */
     68 #define PROTO_IPX	0x002b	/* protocol numbers */
     69 #define PROTO_DNA_RT    0x0027  /* DNA Routing */
     70 
     71 
     72 /*
     73  * Bit definitions for flags.
     74  */
     75 
     76 #define SC_COMP_PROT	0x00000001	/* protocol compression (output) */
     77 #define SC_COMP_AC	0x00000002	/* header compression (output) */
     78 #define	SC_COMP_TCP	0x00000004	/* TCP (VJ) compression (output) */
     79 #define SC_NO_TCP_CCID	0x00000008	/* disable VJ connection-id comp. */
     80 #define SC_REJ_COMP_AC	0x00000010	/* reject adrs/ctrl comp. on input */
     81 #define SC_REJ_COMP_TCP	0x00000020	/* reject TCP (VJ) comp. on input */
     82 #define SC_CCP_OPEN	0x00000040	/* Look at CCP packets */
     83 #define SC_CCP_UP	0x00000080	/* May send/recv compressed packets */
     84 #define SC_ENABLE_IP	0x00000100	/* IP packets may be exchanged */
     85 #define SC_COMP_RUN	0x00001000	/* compressor has been inited */
     86 #define SC_DECOMP_RUN	0x00002000	/* decompressor has been inited */
     87 #define SC_DEBUG	0x00010000	/* enable debug messages */
     88 #define SC_LOG_INPKT	0x00020000	/* log contents of good pkts recvd */
     89 #define SC_LOG_OUTPKT	0x00040000	/* log contents of pkts sent */
     90 #define SC_LOG_RAWIN	0x00080000	/* log all chars received */
     91 #define SC_LOG_FLUSH	0x00100000	/* log all chars flushed */
     92 #define	SC_MASK		0x0fE0ffff	/* bits that user can change */
     93 
     94 /* state bits */
     95 #define	SC_ESCAPED	0x80000000	/* saw a PPP_ESCAPE */
     96 #define	SC_FLUSH	0x40000000	/* flush input until next PPP_FLAG */
     97 #define SC_VJ_RESET	0x20000000	/* Need to reset the VJ decompressor */
     98 #define SC_XMIT_BUSY	0x10000000	/* ppp_write_wakeup is active */
     99 #define SC_RCV_ODDP	0x08000000	/* have rcvd char with odd parity */
    100 #define SC_RCV_EVNP	0x04000000	/* have rcvd char with even parity */
    101 #define SC_RCV_B7_1	0x02000000	/* have rcvd char with bit 7 = 1 */
    102 #define SC_RCV_B7_0	0x01000000	/* have rcvd char with bit 7 = 0 */
    103 #define SC_DC_FERROR	0x00800000	/* fatal decomp error detected */
    104 #define SC_DC_ERROR	0x00400000	/* non-fatal decomp error detected */
    105 
    106 /*
    107  * Ioctl definitions.
    108  */
    109 
    110 struct npioctl {
    111     int		protocol;	/* PPP protocol, e.g. PPP_IP */
    112     enum NPmode	mode;
    113 };
    114 
    115 /* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
    116 struct ppp_option_data {
    117 	u_int8_t  *ptr;
    118 	u_int32_t length;
    119 	int	  transmit;
    120 };
    121 
    122 struct ifpppstatsreq {
    123   struct ifreq	   b;
    124   struct ppp_stats stats;			/* statistic information */
    125 };
    126 
    127 struct ifpppcstatsreq {
    128   struct ifreq		b;
    129   struct ppp_comp_stats stats;
    130 };
    131 
    132 #define ifr__name       b.ifr_ifrn.ifrn_name
    133 #define stats_ptr       b.ifr_ifru.ifru_data
    134 
    135 /*
    136  * Ioctl definitions.
    137  */
    138 
    139 #define	PPPIOCGFLAGS	_IOR('t', 90, int)	/* get configuration flags */
    140 #define	PPPIOCSFLAGS	_IOW('t', 89, int)	/* set configuration flags */
    141 #define	PPPIOCGASYNCMAP	_IOR('t', 88, int)	/* get async map */
    142 #define	PPPIOCSASYNCMAP	_IOW('t', 87, int)	/* set async map */
    143 #define	PPPIOCGUNIT	_IOR('t', 86, int)	/* get ppp unit number */
    144 #define	PPPIOCGRASYNCMAP _IOR('t', 85, int)	/* get receive async map */
    145 #define	PPPIOCSRASYNCMAP _IOW('t', 84, int)	/* set receive async map */
    146 #define	PPPIOCGMRU	_IOR('t', 83, int)	/* get max receive unit */
    147 #define	PPPIOCSMRU	_IOW('t', 82, int)	/* set max receive unit */
    148 #define	PPPIOCSMAXCID	_IOW('t', 81, int)	/* set VJ max slot ID */
    149 #define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
    150 #define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
    151 #define PPPIOCXFERUNIT	_IO('t', 78)		/* transfer PPP unit */
    152 #define PPPIOCSCOMPRESS	_IOW('t', 77, struct ppp_option_data)
    153 #define PPPIOCGNPMODE	_IOWR('t', 76, struct npioctl) /* get NP mode */
    154 #define PPPIOCSNPMODE	_IOW('t', 75, struct npioctl)  /* set NP mode */
    155 #define PPPIOCGDEBUG	_IOR('t', 65, int)	/* Read debug level */
    156 #define PPPIOCSDEBUG	_IOW('t', 64, int)	/* Set debug level */
    157 #define PPPIOCGIDLE	_IOR('t', 63, struct ppp_idle) /* get idle time */
    158 
    159 #define SIOCGPPPSTATS   (SIOCDEVPRIVATE + 0)
    160 #define SIOCGPPPVER     (SIOCDEVPRIVATE + 1)  /* NEVER change this!! */
    161 #define SIOCGPPPCSTATS  (SIOCDEVPRIVATE + 2)
    162 
    163 #if !defined(ifr_mtu)
    164 #define ifr_mtu	ifr_ifru.ifru_metric
    165 #endif
    166 
    167 __END_DECLS
    168 
    169 #endif /* net/if_ppp.h */
    170