ppp_defs.h revision 11970
111970Speter/* from Id: ppp_defs.h,v 1.7 1995/08/10 06:49:35 paulus Exp */ 211970Speter/* $Id$ */ 311967Speter 411967Speter/* 511967Speter * ppp_defs.h - PPP definitions. 611967Speter * 711967Speter * Copyright (c) 1994 The Australian National University. 811967Speter * All rights reserved. 911967Speter * 1011967Speter * Permission to use, copy, modify, and distribute this software and its 1111967Speter * documentation is hereby granted, provided that the above copyright 1211967Speter * notice appears in all copies. This software is provided without any 1311967Speter * warranty, express or implied. The Australian National University 1411967Speter * makes no representations about the suitability of this software for 1511967Speter * any purpose. 1611967Speter * 1711967Speter * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY 1811967Speter * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 1911967Speter * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF 2011967Speter * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY 2111967Speter * OF SUCH DAMAGE. 2211967Speter * 2311967Speter * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, 2411967Speter * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 2511967Speter * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 2611967Speter * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO 2711967Speter * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 2811967Speter * OR MODIFICATIONS. 2911967Speter */ 3011967Speter 3111967Speter#ifndef _PPP_DEFS_H_ 3211967Speter#define _PPP_DEFS_H_ 3311967Speter 3411967Speter/* 3511967Speter * The basic PPP frame. 3611967Speter */ 3711967Speter#define PPP_HDRLEN 4 /* octets for standard ppp header */ 3811967Speter#define PPP_FCSLEN 2 /* octets for FCS */ 3911967Speter#define PPP_MRU 1500 /* default MRU = max length of info field */ 4011967Speter 4111967Speter#define PPP_ADDRESS(p) (((u_char *)(p))[0]) 4211967Speter#define PPP_CONTROL(p) (((u_char *)(p))[1]) 4311967Speter#define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) 4411967Speter 4511967Speter/* 4611967Speter * Significant octet values. 4711967Speter */ 4811967Speter#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ 4911967Speter#define PPP_UI 0x03 /* Unnumbered Information */ 5011967Speter#define PPP_FLAG 0x7e /* Flag Sequence */ 5111967Speter#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ 5211967Speter#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ 5311967Speter 5411967Speter/* 5511967Speter * Protocol field values. 5611967Speter */ 5711967Speter#define PPP_IP 0x21 /* Internet Protocol */ 5811970Speter#define PPP_XNS 0x25 /* Xerox NS */ 5911970Speter#define PPP_IPX 0x2b /* IPX Datagram (RFC1552) */ 6011967Speter#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ 6111967Speter#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ 6211967Speter#define PPP_COMP 0xfd /* compressed packet */ 6311967Speter#define PPP_IPCP 0x8021 /* IP Control Protocol */ 6411970Speter#define PPP_IPXCP 0x802b /* IPX Control Protocol (RFC1552) */ 6511967Speter#define PPP_CCP 0x80fd /* Compression Control Protocol */ 6611967Speter#define PPP_LCP 0xc021 /* Link Control Protocol */ 6711967Speter#define PPP_PAP 0xc023 /* Password Authentication Protocol */ 6811967Speter#define PPP_LQR 0xc025 /* Link Quality Report protocol */ 6911967Speter#define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ 7011967Speter 7111967Speter/* 7211967Speter * Values for FCS calculations. 7311967Speter */ 7411967Speter#define PPP_INITFCS 0xffff /* Initial FCS value */ 7511967Speter#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ 7611967Speter#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) 7711967Speter 7811967Speter/* 7911967Speter * A 32-bit unsigned integral type. 8011967Speter */ 8111970Speter#if !defined(__BIT_TYPES_DEFINED__) && !defined(_BITYPES) && !defined(__FreeBSD__) 8211967Speter#ifdef UINT32_T 8311967Spetertypedef UINT32_T u_int32_t; 8411967Speter#else 8511967Spetertypedef unsigned int u_int32_t; 8611967Speter#endif 8711967Speter#endif 8811967Speter 8911967Speter/* 9011967Speter * Extended asyncmap - allows any character to be escaped. 9111967Speter */ 9211967Spetertypedef u_int32_t ext_accm[8]; 9311967Speter 9411967Speter/* 9511967Speter * What to do with network protocol (NP) packets. 9611967Speter */ 9711967Speterenum NPmode { 9811967Speter NPMODE_PASS, /* pass the packet through */ 9911967Speter NPMODE_DROP, /* silently drop the packet */ 10011967Speter NPMODE_ERROR, /* return an error */ 10111967Speter NPMODE_QUEUE /* save it up for later. */ 10211967Speter}; 10311967Speter 10411967Speter/* 10511967Speter * Statistics. 10611967Speter */ 10711967Speterstruct pppstat { 10811967Speter u_int ppp_ibytes; /* bytes received */ 10911967Speter u_int ppp_ipackets; /* packets received */ 11011967Speter u_int ppp_ierrors; /* receive errors */ 11111967Speter u_int ppp_obytes; /* bytes sent */ 11211967Speter u_int ppp_opackets; /* packets sent */ 11311967Speter u_int ppp_oerrors; /* transmit errors */ 11411967Speter}; 11511967Speter 11611967Speterstruct vjstat { 11711967Speter u_int vjs_packets; /* outbound packets */ 11811967Speter u_int vjs_compressed; /* outbound compressed packets */ 11911967Speter u_int vjs_searches; /* searches for connection state */ 12011967Speter u_int vjs_misses; /* times couldn't find conn. state */ 12111967Speter u_int vjs_uncompressedin; /* inbound uncompressed packets */ 12211967Speter u_int vjs_compressedin; /* inbound compressed packets */ 12311967Speter u_int vjs_errorin; /* inbound unknown type packets */ 12411967Speter u_int vjs_tossed; /* inbound packets tossed because of error */ 12511967Speter}; 12611967Speter 12711967Speterstruct ppp_stats { 12811967Speter struct pppstat p; /* basic PPP statistics */ 12911967Speter struct vjstat vj; /* VJ header compression statistics */ 13011967Speter}; 13111967Speter 13211967Speterstruct compstat { 13311967Speter u_int unc_bytes; /* total uncompressed bytes */ 13411967Speter u_int unc_packets; /* total uncompressed packets */ 13511967Speter u_int comp_bytes; /* compressed bytes */ 13611967Speter u_int comp_packets; /* compressed packets */ 13711967Speter u_int inc_bytes; /* incompressible bytes */ 13811967Speter u_int inc_packets; /* incompressible packets */ 13911967Speter u_int ratio; /* recent compression ratio << 8 */ 14011967Speter}; 14111967Speter 14211967Speterstruct ppp_comp_stats { 14311967Speter struct compstat c; /* packet compression statistics */ 14411967Speter struct compstat d; /* packet decompression statistics */ 14511967Speter}; 14611967Speter 14711967Speter/* 14811967Speter * The following structure records the time in seconds since 14911967Speter * the last NP packet was sent or received. 15011967Speter */ 15111967Speterstruct ppp_idle { 15211967Speter time_t xmit_idle; /* time since last NP packet sent */ 15311967Speter time_t recv_idle; /* time since last NP packet received */ 15411967Speter}; 15511967Speter 15611967Speter#ifndef __P 15711967Speter#ifdef __STDC__ 15811967Speter#define __P(x) x 15911967Speter#else 16011967Speter#define __P(x) () 16111967Speter#endif 16211967Speter#endif 16311967Speter 16411967Speter#endif /* _PPP_DEFS_H_ */ 165