| /*	$Id: ppp_defs.h,v 1.2 2007-06-08 04:02:37 gerg Exp $	*/ | 
 |  | 
 | /* | 
 |  * ppp_defs.h - PPP definitions. | 
 |  * | 
 |  * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved. | 
 |  * | 
 |  * 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. The name(s) of the authors of this software must not be used to | 
 |  *    endorse or promote products derived from this software without | 
 |  *    prior written permission. | 
 |  * | 
 |  * 4. Redistributions of any form whatsoever must retain the following | 
 |  *    acknowledgment: | 
 |  *    "This product includes software developed by Paul Mackerras | 
 |  *     <paulus@samba.org>". | 
 |  * | 
 |  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO | 
 |  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY | 
 |  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY | 
 |  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | 
 |  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN | 
 |  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING | 
 |  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | 
 |  */ | 
 |  | 
 | /* | 
 |  *  ==FILEVERSION 20020521== | 
 |  * | 
 |  *  NOTE TO MAINTAINERS: | 
 |  *     If you modify this file at all, please set the above date. | 
 |  *     ppp_defs.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 ppp_defs.h | 
 |  *     file.  Don't change the format of that line otherwise, so the | 
 |  *     installation script can recognize it. | 
 |  */ | 
 |  | 
 | #ifndef _PPP_DEFS_H_ | 
 | #define _PPP_DEFS_H_ | 
 |  | 
 | /* | 
 |  * The basic PPP frame. | 
 |  */ | 
 | #define PPP_HDRLEN	4	/* octets for standard ppp header */ | 
 | #define PPP_FCSLEN	2	/* octets for FCS */ | 
 | #define PPP_MRU		1500	/* default MRU = max length of info field */ | 
 |  | 
 | #define PPP_ADDRESS(p)	(((__u8 *)(p))[0]) | 
 | #define PPP_CONTROL(p)	(((__u8 *)(p))[1]) | 
 | #define PPP_PROTOCOL(p)	((((__u8 *)(p))[2] << 8) + ((__u8 *)(p))[3]) | 
 |  | 
 | /* | 
 |  * Significant octet values. | 
 |  */ | 
 | #define	PPP_ALLSTATIONS	0xff	/* All-Stations broadcast address */ | 
 | #define	PPP_UI		0x03	/* Unnumbered Information */ | 
 | #define	PPP_FLAG	0x7e	/* Flag Sequence */ | 
 | #define	PPP_ESCAPE	0x7d	/* Asynchronous Control Escape */ | 
 | #define	PPP_TRANS	0x20	/* Asynchronous transparency modifier */ | 
 |  | 
 | /* | 
 |  * Protocol field values. | 
 |  */ | 
 | #define PPP_IP		0x21	/* Internet Protocol */ | 
 | #define PPP_AT		0x29	/* AppleTalk Protocol */ | 
 | #define PPP_IPX		0x2b	/* IPX protocol */ | 
 | #define	PPP_VJC_COMP	0x2d	/* VJ compressed TCP */ | 
 | #define	PPP_VJC_UNCOMP	0x2f	/* VJ uncompressed TCP */ | 
 | #define PPP_MP		0x3d	/* Multilink protocol */ | 
 | #define PPP_IPV6	0x57	/* Internet Protocol Version 6 */ | 
 | #define PPP_COMPFRAG	0xfb	/* fragment compressed below bundle */ | 
 | #define PPP_COMP	0xfd	/* compressed packet */ | 
 | #define PPP_IPCP	0x8021	/* IP Control Protocol */ | 
 | #define PPP_ATCP	0x8029	/* AppleTalk Control Protocol */ | 
 | #define PPP_IPXCP	0x802b	/* IPX Control Protocol */ | 
 | #define PPP_IPV6CP	0x8057	/* IPv6 Control Protocol */ | 
 | #define PPP_CCPFRAG	0x80fb	/* CCP at link level (below MP bundle) */ | 
 | #define PPP_CCP		0x80fd	/* Compression Control Protocol */ | 
 | #define PPP_ECPFRAG	0x8055	/* ECP at link level (below MP bundle) */ | 
 | #define PPP_ECP		0x8053	/* Encryption Control Protocol */ | 
 | #define PPP_LCP		0xc021	/* Link Control Protocol */ | 
 | #define PPP_PAP		0xc023	/* Password Authentication Protocol */ | 
 | #define PPP_LQR		0xc025	/* Link Quality Report protocol */ | 
 | #define PPP_CHAP	0xc223	/* Cryptographic Handshake Auth. Protocol */ | 
 | #define PPP_CBCP	0xc029	/* Callback Control Protocol */ | 
 |  | 
 | /* | 
 |  * Values for FCS calculations. | 
 |  */ | 
 |  | 
 | #define PPP_INITFCS	0xffff	/* Initial FCS value */ | 
 | #define PPP_GOODFCS	0xf0b8	/* Good final FCS value */ | 
 | #define PPP_FCS(fcs, c)	(((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) | 
 |  | 
 | /* | 
 |  * Extended asyncmap - allows any character to be escaped. | 
 |  */ | 
 |  | 
 | typedef __u32		ext_accm[8]; | 
 |  | 
 | /* | 
 |  * What to do with network protocol (NP) packets. | 
 |  */ | 
 | enum NPmode { | 
 |     NPMODE_PASS,		/* pass the packet through */ | 
 |     NPMODE_DROP,		/* silently drop the packet */ | 
 |     NPMODE_ERROR,		/* return an error */ | 
 |     NPMODE_QUEUE		/* save it up for later. */ | 
 | }; | 
 |  | 
 | /* | 
 |  * Statistics for LQRP and pppstats | 
 |  */ | 
 | struct pppstat	{ | 
 |     __u32	ppp_discards;	/* # frames discarded */ | 
 |  | 
 |     __u32	ppp_ibytes;	/* bytes received */ | 
 |     __u32	ppp_ioctects;	/* bytes received not in error */ | 
 |     __u32	ppp_ipackets;	/* packets received */ | 
 |     __u32	ppp_ierrors;	/* receive errors */ | 
 |     __u32	ppp_ilqrs;	/* # LQR frames received */ | 
 |  | 
 |     __u32	ppp_obytes;	/* raw bytes sent */ | 
 |     __u32	ppp_ooctects;	/* frame bytes sent */ | 
 |     __u32	ppp_opackets;	/* packets sent */ | 
 |     __u32	ppp_oerrors;	/* transmit errors */  | 
 |     __u32	ppp_olqrs;	/* # LQR frames sent */ | 
 | }; | 
 |  | 
 | struct vjstat { | 
 |     __u32	vjs_packets;	/* outbound packets */ | 
 |     __u32	vjs_compressed;	/* outbound compressed packets */ | 
 |     __u32	vjs_searches;	/* searches for connection state */ | 
 |     __u32	vjs_misses;	/* times couldn't find conn. state */ | 
 |     __u32	vjs_uncompressedin; /* inbound uncompressed packets */ | 
 |     __u32	vjs_compressedin;   /* inbound compressed packets */ | 
 |     __u32	vjs_errorin;	/* inbound unknown type packets */ | 
 |     __u32	vjs_tossed;	/* inbound packets tossed because of error */ | 
 | }; | 
 |  | 
 | struct compstat { | 
 |     __u32	unc_bytes;	/* total uncompressed bytes */ | 
 |     __u32	unc_packets;	/* total uncompressed packets */ | 
 |     __u32	comp_bytes;	/* compressed bytes */ | 
 |     __u32	comp_packets;	/* compressed packets */ | 
 |     __u32	inc_bytes;	/* incompressible bytes */ | 
 |     __u32	inc_packets;	/* incompressible packets */ | 
 |  | 
 |     /* the compression ratio is defined as in_count / bytes_out */ | 
 |     __u32       in_count;	/* Bytes received */ | 
 |     __u32       bytes_out;	/* Bytes transmitted */ | 
 |  | 
 |     double	ratio;		/* not computed in kernel. */ | 
 | }; | 
 |  | 
 | struct ppp_stats { | 
 |     struct pppstat	p;	/* basic PPP statistics */ | 
 |     struct vjstat	vj;	/* VJ header compression statistics */ | 
 | }; | 
 |  | 
 | struct ppp_comp_stats { | 
 |     struct compstat	c;	/* packet compression statistics */ | 
 |     struct compstat	d;	/* packet decompression statistics */ | 
 | }; | 
 |  | 
 | /* | 
 |  * The following structure records the time in seconds since | 
 |  * the last NP packet was sent or received. | 
 |  */ | 
 | struct ppp_idle { | 
 |     time_t xmit_idle;		/* time since last NP packet sent */ | 
 |     time_t recv_idle;		/* time since last NP packet received */ | 
 | }; | 
 |  | 
 | #ifndef __P | 
 | #ifdef __STDC__ | 
 | #define __P(x)	x | 
 | #else | 
 | #define __P(x)	() | 
 | #endif | 
 | #endif | 
 |  | 
 | #endif /* _PPP_DEFS_H_ */ |