ppp_defs.h revision 1.2
1 /* $NetBSD: ppp_defs.h,v 1.2 1997/03/12 20:26:59 christos Exp $ */ 2 /* Id: ppp_defs.h,v 1.10 1997/03/04 03:32:37 paulus Exp */ 3 4 /* 5 * ppp_defs.h - PPP definitions. 6 * 7 * Copyright (c) 1994 The Australian National University. 8 * All rights reserved. 9 * 10 * Permission to use, copy, modify, and distribute this software and its 11 * documentation is hereby granted, provided that the above copyright 12 * notice appears in all copies. This software is provided without any 13 * warranty, express or implied. The Australian National University 14 * makes no representations about the suitability of this software for 15 * any purpose. 16 * 17 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY 18 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 19 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF 20 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY 21 * OF SUCH DAMAGE. 22 * 23 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, 24 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 25 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 26 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO 27 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 28 * OR MODIFICATIONS. 29 */ 30 31 #ifndef _PPP_DEFS_H_ 32 #define _PPP_DEFS_H_ 33 34 /* 35 * The basic PPP frame. 36 */ 37 #define PPP_HDRLEN 4 /* octets for standard ppp header */ 38 #define PPP_FCSLEN 2 /* octets for FCS */ 39 #define PPP_MRU 1500 /* default MRU = max length of info field */ 40 41 #define PPP_ADDRESS(p) (((u_char *)(p))[0]) 42 #define PPP_CONTROL(p) (((u_char *)(p))[1]) 43 #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) 44 45 /* 46 * Significant octet values. 47 */ 48 #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ 49 #define PPP_UI 0x03 /* Unnumbered Information */ 50 #define PPP_FLAG 0x7e /* Flag Sequence */ 51 #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ 52 #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ 53 54 /* 55 * Protocol field values. 56 */ 57 #define PPP_IP 0x21 /* Internet Protocol */ 58 #define PPP_AT 0x29 /* AppleTalk Protocol */ 59 #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ 60 #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ 61 #define PPP_COMP 0xfd /* compressed packet */ 62 #define PPP_IPCP 0x8021 /* IP Control Protocol */ 63 #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ 64 #define PPP_CCP 0x80fd /* Compression Control Protocol */ 65 #define PPP_LCP 0xc021 /* Link Control Protocol */ 66 #define PPP_PAP 0xc023 /* Password Authentication Protocol */ 67 #define PPP_LQR 0xc025 /* Link Quality Report protocol */ 68 #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ 69 #define PPP_CBCP 0xc029 /* Callback Control Protocol */ 70 71 /* 72 * Values for FCS calculations. 73 */ 74 #define PPP_INITFCS 0xffff /* Initial FCS value */ 75 #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ 76 #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) 77 78 /* 79 * A 32-bit unsigned integral type. 80 */ 81 #if !defined(__BIT_TYPES_DEFINED__) && !defined(_BITYPES) && !defined(__FreeBSD__) 82 #ifdef UINT32_T 83 typedef UINT32_T u_int32_t; 84 #else 85 typedef unsigned int u_int32_t; 86 #endif 87 #endif 88 89 /* 90 * Extended asyncmap - allows any character to be escaped. 91 */ 92 typedef u_int32_t ext_accm[8]; 93 94 /* 95 * What to do with network protocol (NP) packets. 96 */ 97 enum NPmode { 98 NPMODE_PASS, /* pass the packet through */ 99 NPMODE_DROP, /* silently drop the packet */ 100 NPMODE_ERROR, /* return an error */ 101 NPMODE_QUEUE /* save it up for later. */ 102 }; 103 104 /* 105 * Statistics. 106 */ 107 struct pppstat { 108 unsigned int ppp_ibytes; /* bytes received */ 109 unsigned int ppp_ipackets; /* packets received */ 110 unsigned int ppp_ierrors; /* receive errors */ 111 unsigned int ppp_obytes; /* bytes sent */ 112 unsigned int ppp_opackets; /* packets sent */ 113 unsigned int ppp_oerrors; /* transmit errors */ 114 }; 115 116 struct vjstat { 117 unsigned int vjs_packets; /* outbound packets */ 118 unsigned int vjs_compressed; /* outbound compressed packets */ 119 unsigned int vjs_searches; /* searches for connection state */ 120 unsigned int vjs_misses; /* times couldn't find conn. state */ 121 unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ 122 unsigned int vjs_compressedin; /* inbound compressed packets */ 123 unsigned int vjs_errorin; /* inbound unknown type packets */ 124 unsigned int vjs_tossed; /* inbound packets tossed because of error */ 125 }; 126 127 struct ppp_stats { 128 struct pppstat p; /* basic PPP statistics */ 129 struct vjstat vj; /* VJ header compression statistics */ 130 }; 131 132 struct compstat { 133 unsigned int unc_bytes; /* total uncompressed bytes */ 134 unsigned int unc_packets; /* total uncompressed packets */ 135 unsigned int comp_bytes; /* compressed bytes */ 136 unsigned int comp_packets; /* compressed packets */ 137 unsigned int inc_bytes; /* incompressible bytes */ 138 unsigned int inc_packets; /* incompressible packets */ 139 unsigned int ratio; /* recent compression ratio << 8 */ 140 }; 141 142 struct ppp_comp_stats { 143 struct compstat c; /* packet compression statistics */ 144 struct compstat d; /* packet decompression statistics */ 145 }; 146 147 /* 148 * The following structure records the time in seconds since 149 * the last NP packet was sent or received. 150 */ 151 struct ppp_idle { 152 time_t xmit_idle; /* time since last NP packet sent */ 153 time_t recv_idle; /* time since last NP packet received */ 154 }; 155 156 #ifndef __P 157 #ifdef __STDC__ 158 #define __P(x) x 159 #else 160 #define __P(x) () 161 #endif 162 #endif 163 164 #endif /* _PPP_DEFS_H_ */ 165
Indexes created Mon Sep 29 21:09:56 GMT 2025