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      1 /*	$Id: if_ppp.h,v 1.21 2000/03/27 06:03:36 paulus Exp $	*/
      2 
      3 /*
      4  * if_ppp.h - Point-to-Point Protocol definitions.
      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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     20  *
     21  */
     22 
     23 /*
     24  *  ==FILEVERSION 20050812==
     25  *
     26  *  NOTE TO MAINTAINERS:
     27  *     If you modify this file at all, please set the above date.
     28  *     if_ppp.h is shipped with a PPP distribution as well as with the kernel;
     29  *     if everyone increases the FILEVERSION number above, then scripts
     30  *     can do the right thing when deciding whether to install a new if_ppp.h
     31  *     file.  Don't change the format of that line otherwise, so the
     32  *     installation script can recognize it.
     33  */
     34 
     35 #ifndef _IF_PPP_H_
     36 #define _IF_PPP_H_
     37 
     38 #include <linux/compiler.h>
     39 
     40 /*
     41  * Packet sizes
     42  */
     43 
     44 #define	PPP_MTU		1500	/* Default MTU (size of Info field) */
     45 #define PPP_MAXMRU	65000	/* Largest MRU we allow */
     46 #define PROTO_IPX	0x002b	/* protocol numbers */
     47 #define PROTO_DNA_RT    0x0027  /* DNA Routing */
     48 
     49 
     50 /*
     51  * Bit definitions for flags.
     52  */
     53 
     54 #define SC_COMP_PROT	0x00000001	/* protocol compression (output) */
     55 #define SC_COMP_AC	0x00000002	/* header compression (output) */
     56 #define	SC_COMP_TCP	0x00000004	/* TCP (VJ) compression (output) */
     57 #define SC_NO_TCP_CCID	0x00000008	/* disable VJ connection-id comp. */
     58 #define SC_REJ_COMP_AC	0x00000010	/* reject adrs/ctrl comp. on input */
     59 #define SC_REJ_COMP_TCP	0x00000020	/* reject TCP (VJ) comp. on input */
     60 #define SC_CCP_OPEN	0x00000040	/* Look at CCP packets */
     61 #define SC_CCP_UP	0x00000080	/* May send/recv compressed packets */
     62 #define SC_ENABLE_IP	0x00000100	/* IP packets may be exchanged */
     63 #define SC_LOOP_TRAFFIC	0x00000200	/* send traffic to pppd */
     64 #define SC_MULTILINK	0x00000400	/* do multilink encapsulation */
     65 #define SC_MP_SHORTSEQ	0x00000800	/* use short MP sequence numbers */
     66 #define SC_COMP_RUN	0x00001000	/* compressor has been inited */
     67 #define SC_DECOMP_RUN	0x00002000	/* decompressor has been inited */
     68 #define SC_MP_XSHORTSEQ	0x00004000	/* transmit short MP seq numbers */
     69 #define SC_DEBUG	0x00010000	/* enable debug messages */
     70 #define SC_LOG_INPKT	0x00020000	/* log contents of good pkts recvd */
     71 #define SC_LOG_OUTPKT	0x00040000	/* log contents of pkts sent */
     72 #define SC_LOG_RAWIN	0x00080000	/* log all chars received */
     73 #define SC_LOG_FLUSH	0x00100000	/* log all chars flushed */
     74 #define	SC_SYNC		0x00200000	/* synchronous serial mode */
     75 #define	SC_MUST_COMP    0x00400000	/* no uncompressed packets may be sent or received */
     76 #define	SC_MASK		0x0f600fff	/* bits that user can change */
     77 
     78 /* state bits */
     79 #define SC_XMIT_BUSY	0x10000000	/* (used by isdn_ppp?) */
     80 #define SC_RCV_ODDP	0x08000000	/* have rcvd char with odd parity */
     81 #define SC_RCV_EVNP	0x04000000	/* have rcvd char with even parity */
     82 #define SC_RCV_B7_1	0x02000000	/* have rcvd char with bit 7 = 1 */
     83 #define SC_RCV_B7_0	0x01000000	/* have rcvd char with bit 7 = 0 */
     84 #define SC_DC_FERROR	0x00800000	/* fatal decomp error detected */
     85 #define SC_DC_ERROR	0x00400000	/* non-fatal decomp error detected */
     86 
     87 /*
     88  * Ioctl definitions.
     89  */
     90 
     91 struct npioctl {
     92 	int		protocol;	/* PPP protocol, 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 	__u8	__user *ptr;
     99 	__u32	length;
    100 	int	transmit;
    101 };
    102 
    103 struct ifpppstatsreq {
    104 	struct ifreq	 b;
    105 	struct ppp_stats stats;			/* statistic information */
    106 };
    107 
    108 struct ifpppcstatsreq {
    109 	struct ifreq	      b;
    110 	struct ppp_comp_stats stats;
    111 };
    112 
    113 #define ifr__name       b.ifr_ifrn.ifrn_name
    114 #define stats_ptr       b.ifr_ifru.ifru_data
    115 
    116 /*
    117  * Ioctl definitions.
    118  */
    119 
    120 #define	PPPIOCGFLAGS	_IOR('t', 90, int)	/* get configuration flags */
    121 #define	PPPIOCSFLAGS	_IOW('t', 89, int)	/* set configuration flags */
    122 #define	PPPIOCGASYNCMAP	_IOR('t', 88, int)	/* get async map */
    123 #define	PPPIOCSASYNCMAP	_IOW('t', 87, int)	/* set async map */
    124 #define	PPPIOCGUNIT	_IOR('t', 86, int)	/* get ppp unit number */
    125 #define	PPPIOCGRASYNCMAP _IOR('t', 85, int)	/* get receive async map */
    126 #define	PPPIOCSRASYNCMAP _IOW('t', 84, int)	/* set receive async map */
    127 #define	PPPIOCGMRU	_IOR('t', 83, int)	/* get max receive unit */
    128 #define	PPPIOCSMRU	_IOW('t', 82, int)	/* set max receive unit */
    129 #define	PPPIOCSMAXCID	_IOW('t', 81, int)	/* set VJ max slot ID */
    130 #define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
    131 #define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
    132 #define PPPIOCXFERUNIT	_IO('t', 78)		/* transfer PPP unit */
    133 #define PPPIOCSCOMPRESS	_IOW('t', 77, struct ppp_option_data)
    134 #define PPPIOCGNPMODE	_IOWR('t', 76, struct npioctl) /* get NP mode */
    135 #define PPPIOCSNPMODE	_IOW('t', 75, struct npioctl)  /* set NP mode */
    136 #define PPPIOCSPASS	_IOW('t', 71, struct sock_fprog) /* set pass filter */
    137 #define PPPIOCSACTIVE	_IOW('t', 70, struct sock_fprog) /* set active filt */
    138 #define PPPIOCGDEBUG	_IOR('t', 65, int)	/* Read debug level */
    139 #define PPPIOCSDEBUG	_IOW('t', 64, int)	/* Set debug level */
    140 #define PPPIOCGIDLE	_IOR('t', 63, struct ppp_idle) /* get idle time */
    141 #define PPPIOCNEWUNIT	_IOWR('t', 62, int)	/* create new ppp unit */
    142 #define PPPIOCATTACH	_IOW('t', 61, int)	/* attach to ppp unit */
    143 #define PPPIOCDETACH	_IOW('t', 60, int)	/* detach from ppp unit/chan */
    144 #define PPPIOCSMRRU	_IOW('t', 59, int)	/* set multilink MRU */
    145 #define PPPIOCCONNECT	_IOW('t', 58, int)	/* connect channel to unit */
    146 #define PPPIOCDISCONN	_IO('t', 57)		/* disconnect channel */
    147 #define PPPIOCATTCHAN	_IOW('t', 56, int)	/* attach to ppp channel */
    148 #define PPPIOCGCHAN	_IOR('t', 55, int)	/* get ppp channel number */
    149 
    150 #define SIOCGPPPSTATS   (SIOCDEVPRIVATE + 0)
    151 #define SIOCGPPPVER     (SIOCDEVPRIVATE + 1)	/* NEVER change this!! */
    152 #define SIOCGPPPCSTATS  (SIOCDEVPRIVATE + 2)
    153 
    154 #if !defined(ifr_mtu)
    155 #define ifr_mtu	ifr_ifru.ifru_metric
    156 #endif
    157 
    158 #endif /* _IF_PPP_H_ */
    159