191 lines
6.5 KiB
C
191 lines
6.5 KiB
C
|
/* $Id: ppp_defs.h,v 1.2 1994/09/21 01:31:06 paulus Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ppp_defs.h - PPP definitions.
|
||
|
|
*
|
||
|
|
* Copyright (c) 1994 The Australian National University.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and distribute this software and its
|
||
|
|
* documentation is hereby granted, provided that the above copyright
|
||
|
|
* notice appears in all copies. This software is provided without any
|
||
|
|
* warranty, express or implied. The Australian National University
|
||
|
|
* makes no representations about the suitability of this software for
|
||
|
|
* any purpose.
|
||
|
|
*
|
||
|
|
* IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
|
||
|
|
* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
||
|
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
|
||
|
|
* THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
|
||
|
|
* OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
|
||
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
||
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
||
|
|
* ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
|
||
|
|
* OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
|
||
|
|
* OR MODIFICATIONS.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ==FILEVERSION 20000114==
|
||
|
|
*
|
||
|
|
* 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_
|
||
|
|
|
||
|
|
#include <linux/crc-ccitt.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_MPLS_UC 0x0281 /* Multi Protocol Label Switching - Unicast */
|
||
|
|
#define PPP_MPLS_MC 0x0283 /* Multi Protocol Label Switching - Multicast */
|
||
|
|
#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_MPLSCP 0x80fd /* MPLS 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) crc_ccitt_byte(fcs, c)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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_ */
|