pppd/include/net/ppp_defs.h - platform/external/ppp - Git at Google

 /*	$Id: ppp_defs.h,v 1.17 2002/12/06 09:49:15 paulus Exp $	*/

 /*
  * ppp_defs.h - PPP definitions.
  *
  * Copyright (c) 1984 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.
  */

 #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 */

 /*
  * Packet sizes
  *
  * Note - lcp shouldn't be allowed to negotiate stuff outside these
  *	  limits.  See lcp.h in the pppd directory.
  * (XXX - these constants should simply be shared by lcp.c instead
  *	  of living in lcp.h)
  */
 #define	PPP_MTU		1500	/* Default MTU (size of Info field) */
 #define PPP_MAXMTU	65535 - (PPP_HDRLEN + PPP_FCSLEN)
 #define PPP_MINMTU	64
 #define PPP_MRU		1500	/* default MRU = max length of info field */
 #define PPP_MAXMRU	65000	/* Largest MRU we allow */
 #define PPP_MINMRU	128

 #define PPP_ADDRESS(p)	(((u_char *)(p))[0])
 #define PPP_CONTROL(p)	(((u_char *)(p))[1])
 #define PPP_PROTOCOL(p)	((((u_char *)(p))[2] << 8) + ((u_char *)(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_IPV6	0x57	/* Internet Protocol Version 6 */
 #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_CCP		0x80fd	/* Compression Control Protocol */
 #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 */
 #define PPP_EAP		0xc227	/* Extensible Authentication 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])

 /*
  * A 32-bit unsigned integral type.
  */

 #if !defined(__BIT_TYPES_DEFINED__) && !defined(_BITYPES) \
  && !defined(__FreeBSD__) && (NS_TARGET < 40)
 #ifdef	UINT32_T
 typedef UINT32_T	u_int32_t;
 #else
 typedef unsigned int	u_int32_t;
 typedef unsigned short  u_int16_t;
 #endif
 #endif

 /*
  * Extended asyncmap - allows any character to be escaped.
  */
 typedef u_int32_t	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.
  */
 struct pppstat	{
     unsigned int ppp_ibytes;	/* bytes received */
     unsigned int ppp_ipackets;	/* packets received */
     unsigned int ppp_ierrors;	/* receive errors */
     unsigned int ppp_obytes;	/* bytes sent */
     unsigned int ppp_opackets;	/* packets sent */
     unsigned int ppp_oerrors;	/* transmit errors */
 };

 struct vjstat {
     unsigned int vjs_packets;	/* outbound packets */
     unsigned int vjs_compressed; /* outbound compressed packets */
     unsigned int vjs_searches;	/* searches for connection state */
     unsigned int vjs_misses;	/* times couldn't find conn. state */
     unsigned int vjs_uncompressedin; /* inbound uncompressed packets */
     unsigned int vjs_compressedin; /* inbound compressed packets */
     unsigned int vjs_errorin;	/* inbound unknown type packets */
     unsigned int vjs_tossed;	/* inbound packets tossed because of error */
 };

 struct ppp_stats {
     struct pppstat p;		/* basic PPP statistics */
     struct vjstat vj;		/* VJ header compression statistics */
 };

 struct compstat {
     unsigned int unc_bytes;	/* total uncompressed bytes */
     unsigned int unc_packets;	/* total uncompressed packets */
     unsigned int comp_bytes;	/* compressed bytes */
     unsigned int comp_packets;	/* compressed packets */
     unsigned int inc_bytes;	/* incompressible bytes */
     unsigned int inc_packets;	/* incompressible packets */
     unsigned int ratio;		/* recent compression ratio << 8 */
 };

 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_ */
	/* $Id: ppp_defs.h,v 1.17 2002/12/06 09:49:15 paulus Exp $ */

	/*
	* ppp_defs.h - PPP definitions.
	*
	* Copyright (c) 1984 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.
	*/

	#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 */

	/*
	* Packet sizes
	*
	* Note - lcp shouldn't be allowed to negotiate stuff outside these
	* limits. See lcp.h in the pppd directory.
	* (XXX - these constants should simply be shared by lcp.c instead
	* of living in lcp.h)
	*/
	#define PPP_MTU 1500 /* Default MTU (size of Info field) */
	#define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN)
	#define PPP_MINMTU 64
	#define PPP_MRU 1500 /* default MRU = max length of info field */
	#define PPP_MAXMRU 65000 /* Largest MRU we allow */
	#define PPP_MINMRU 128

	#define PPP_ADDRESS(p) (((u_char *)(p))[0])
	#define PPP_CONTROL(p) (((u_char *)(p))[1])
	#define PPP_PROTOCOL(p) ((((u_char )(p))[2] << 8) + ((u_char )(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_IPV6 0x57 /* Internet Protocol Version 6 */
	#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_CCP 0x80fd /* Compression Control Protocol */
	#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 */
	#define PPP_EAP 0xc227 /* Extensible Authentication 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])

	/*
	* A 32-bit unsigned integral type.
	*/

	#if !defined(__BIT_TYPES_DEFINED__) && !defined(_BITYPES) \
	&& !defined(__FreeBSD__) && (NS_TARGET < 40)
	#ifdef UINT32_T
	typedef UINT32_T u_int32_t;
	#else
	typedef unsigned int u_int32_t;
	typedef unsigned short u_int16_t;
	#endif
	#endif

	/*
	* Extended asyncmap - allows any character to be escaped.
	*/
	typedef u_int32_t 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.
	*/
	struct pppstat {
	unsigned int ppp_ibytes; /* bytes received */
	unsigned int ppp_ipackets; /* packets received */
	unsigned int ppp_ierrors; /* receive errors */
	unsigned int ppp_obytes; /* bytes sent */
	unsigned int ppp_opackets; /* packets sent */
	unsigned int ppp_oerrors; /* transmit errors */
	};

	struct vjstat {
	unsigned int vjs_packets; /* outbound packets */
	unsigned int vjs_compressed; /* outbound compressed packets */
	unsigned int vjs_searches; /* searches for connection state */
	unsigned int vjs_misses; /* times couldn't find conn. state */
	unsigned int vjs_uncompressedin; /* inbound uncompressed packets */
	unsigned int vjs_compressedin; /* inbound compressed packets */
	unsigned int vjs_errorin; /* inbound unknown type packets */
	unsigned int vjs_tossed; /* inbound packets tossed because of error */
	};

	struct ppp_stats {
	struct pppstat p; /* basic PPP statistics */
	struct vjstat vj; /* VJ header compression statistics */
	};

	struct compstat {
	unsigned int unc_bytes; /* total uncompressed bytes */
	unsigned int unc_packets; /* total uncompressed packets */
	unsigned int comp_bytes; /* compressed bytes */
	unsigned int comp_packets; /* compressed packets */
	unsigned int inc_bytes; /* incompressible bytes */
	unsigned int inc_packets; /* incompressible packets */
	unsigned int ratio; /* recent compression ratio << 8 */
	};

	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_ */