1 1.14 is /* $NetBSD: ppp_defs.h,v 1.14 2020/04/04 19:46:01 is Exp $ */ 2 1.3 christos /* Id: ppp_defs.h,v 1.11 1997/04/30 05:46:24 paulus Exp */ 3 1.1 paulus 4 1.1 paulus /* 5 1.1 paulus * ppp_defs.h - PPP definitions. 6 1.1 paulus * 7 1.8 itojun * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved. 8 1.1 paulus * 9 1.8 itojun * Redistribution and use in source and binary forms, with or without 10 1.8 itojun * modification, are permitted provided that the following conditions 11 1.8 itojun * are met: 12 1.8 itojun * 13 1.8 itojun * 1. Redistributions of source code must retain the above copyright 14 1.8 itojun * notice, this list of conditions and the following disclaimer. 15 1.8 itojun * 16 1.8 itojun * 2. Redistributions in binary form must reproduce the above copyright 17 1.8 itojun * notice, this list of conditions and the following disclaimer in 18 1.8 itojun * the documentation and/or other materials provided with the 19 1.8 itojun * distribution. 20 1.8 itojun * 21 1.8 itojun * 3. The name(s) of the authors of this software must not be used to 22 1.8 itojun * endorse or promote products derived from this software without 23 1.8 itojun * prior written permission. 24 1.8 itojun * 25 1.8 itojun * 4. Redistributions of any form whatsoever must retain the following 26 1.8 itojun * acknowledgment: 27 1.8 itojun * "This product includes software developed by Paul Mackerras 28 1.8 itojun * <paulus (at) samba.org>". 29 1.8 itojun * 30 1.8 itojun * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 31 1.8 itojun * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 32 1.8 itojun * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 33 1.8 itojun * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 34 1.8 itojun * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 35 1.8 itojun * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 36 1.8 itojun * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 37 1.1 paulus */ 38 1.1 paulus 39 1.4 perry #ifndef _NET_PPP_DEFS_H_ 40 1.4 perry #define _NET_PPP_DEFS_H_ 41 1.1 paulus 42 1.1 paulus /* 43 1.1 paulus * The basic PPP frame. 44 1.1 paulus */ 45 1.1 paulus #define PPP_HDRLEN 4 /* octets for standard ppp header */ 46 1.1 paulus #define PPP_FCSLEN 2 /* octets for FCS */ 47 1.3 christos 48 1.3 christos /* 49 1.3 christos * Packet sizes 50 1.3 christos * 51 1.3 christos * Note - lcp shouldn't be allowed to negotiate stuff outside these 52 1.3 christos * limits. See lcp.h in the pppd directory. 53 1.3 christos * (XXX - these constants should simply be shared by lcp.c instead 54 1.3 christos * of living in lcp.h) 55 1.3 christos */ 56 1.3 christos #define PPP_MTU 1500 /* Default MTU (size of Info field) */ 57 1.3 christos #define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN) 58 1.3 christos #define PPP_MINMTU 64 59 1.1 paulus #define PPP_MRU 1500 /* default MRU = max length of info field */ 60 1.3 christos #define PPP_MAXMRU 65000 /* Largest MRU we allow */ 61 1.3 christos #define PPP_MINMRU 128 62 1.1 paulus 63 1.12 dyoung #define PPP_ADDRESS(p) (((const u_char *)(p))[0]) 64 1.12 dyoung #define PPP_CONTROL(p) (((const u_char *)(p))[1]) 65 1.12 dyoung #define PPP_PROTOCOL(p) \ 66 1.12 dyoung ((((const u_char *)(p))[2] << 8) + ((const u_char *)(p))[3]) 67 1.1 paulus 68 1.1 paulus /* 69 1.1 paulus * Significant octet values. 70 1.1 paulus */ 71 1.1 paulus #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ 72 1.1 paulus #define PPP_UI 0x03 /* Unnumbered Information */ 73 1.1 paulus #define PPP_FLAG 0x7e /* Flag Sequence */ 74 1.1 paulus #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ 75 1.1 paulus #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ 76 1.1 paulus 77 1.1 paulus /* 78 1.1 paulus * Protocol field values. 79 1.1 paulus */ 80 1.7 sommerfe #define PPP_IP 0x0021 /* Internet Protocol */ 81 1.7 sommerfe #define PPP_ISO 0x0023 /* ISO OSI Protocol */ 82 1.7 sommerfe #define PPP_XNS 0x0025 /* Xerox NS Protocol */ 83 1.7 sommerfe #define PPP_AT 0x0029 /* AppleTalk Protocol */ 84 1.7 sommerfe #define PPP_IPX 0x002b /* IPX protocol */ 85 1.7 sommerfe #define PPP_VJC_COMP 0x002d /* VJ compressed TCP */ 86 1.7 sommerfe #define PPP_VJC_UNCOMP 0x002f /* VJ uncompressed TCP */ 87 1.14 is #define PPP_MP 0x003d /* Multilink PPP Fragment */ 88 1.7 sommerfe #define PPP_IPV6 0x0057 /* Internet Protocol Version 6 */ 89 1.7 sommerfe #define PPP_COMP 0x00fd /* compressed packet */ 90 1.7 sommerfe #define PPP_IPCP 0x8021 /* IP Control Protocol */ 91 1.7 sommerfe #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ 92 1.7 sommerfe #define PPP_IPXCP 0x802b /* IPX Control Protocol */ 93 1.7 sommerfe #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ 94 1.7 sommerfe #define PPP_CCP 0x80fd /* Compression Control Protocol */ 95 1.10 cube #define PPP_ECP 0x8053 /* Encryption Control Protocol */ 96 1.7 sommerfe #define PPP_LCP 0xc021 /* Link Control Protocol */ 97 1.7 sommerfe #define PPP_PAP 0xc023 /* Password Authentication Protocol */ 98 1.7 sommerfe #define PPP_LQR 0xc025 /* Link Quality Report protocol */ 99 1.7 sommerfe #define PPP_CHAP 0xc223 /* Crypto Handshake Auth. Protocol */ 100 1.7 sommerfe #define PPP_CBCP 0xc029 /* Callback Control Protocol */ 101 1.10 cube #define PPP_EAP 0xc227 /* Extensible Authentication Protocol */ 102 1.1 paulus 103 1.1 paulus /* 104 1.1 paulus * Values for FCS calculations. 105 1.1 paulus */ 106 1.1 paulus #define PPP_INITFCS 0xffff /* Initial FCS value */ 107 1.1 paulus #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ 108 1.1 paulus #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) 109 1.1 paulus 110 1.1 paulus /* 111 1.1 paulus * Extended asyncmap - allows any character to be escaped. 112 1.1 paulus */ 113 1.13 matt typedef uint32_t ext_accm[8]; 114 1.1 paulus 115 1.1 paulus /* 116 1.1 paulus * What to do with network protocol (NP) packets. 117 1.1 paulus */ 118 1.1 paulus enum NPmode { 119 1.1 paulus NPMODE_PASS, /* pass the packet through */ 120 1.1 paulus NPMODE_DROP, /* silently drop the packet */ 121 1.1 paulus NPMODE_ERROR, /* return an error */ 122 1.1 paulus NPMODE_QUEUE /* save it up for later. */ 123 1.1 paulus }; 124 1.1 paulus 125 1.1 paulus /* 126 1.1 paulus * Statistics. 127 1.1 paulus */ 128 1.1 paulus struct pppstat { 129 1.2 christos unsigned int ppp_ibytes; /* bytes received */ 130 1.2 christos unsigned int ppp_ipackets; /* packets received */ 131 1.2 christos unsigned int ppp_ierrors; /* receive errors */ 132 1.2 christos unsigned int ppp_obytes; /* bytes sent */ 133 1.2 christos unsigned int ppp_opackets; /* packets sent */ 134 1.2 christos unsigned int ppp_oerrors; /* transmit errors */ 135 1.1 paulus }; 136 1.1 paulus 137 1.1 paulus struct vjstat { 138 1.2 christos unsigned int vjs_packets; /* outbound packets */ 139 1.2 christos unsigned int vjs_compressed; /* outbound compressed packets */ 140 1.2 christos unsigned int vjs_searches; /* searches for connection state */ 141 1.2 christos unsigned int vjs_misses; /* times couldn't find conn. state */ 142 1.2 christos unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ 143 1.2 christos unsigned int vjs_compressedin; /* inbound compressed packets */ 144 1.2 christos unsigned int vjs_errorin; /* inbound unknown type packets */ 145 1.2 christos unsigned int vjs_tossed; /* inbound packets tossed because of error */ 146 1.1 paulus }; 147 1.1 paulus 148 1.1 paulus struct ppp_stats { 149 1.2 christos struct pppstat p; /* basic PPP statistics */ 150 1.2 christos struct vjstat vj; /* VJ header compression statistics */ 151 1.1 paulus }; 152 1.1 paulus 153 1.1 paulus struct compstat { 154 1.2 christos unsigned int unc_bytes; /* total uncompressed bytes */ 155 1.2 christos unsigned int unc_packets; /* total uncompressed packets */ 156 1.2 christos unsigned int comp_bytes; /* compressed bytes */ 157 1.2 christos unsigned int comp_packets; /* compressed packets */ 158 1.2 christos unsigned int inc_bytes; /* incompressible bytes */ 159 1.2 christos unsigned int inc_packets; /* incompressible packets */ 160 1.2 christos unsigned int ratio; /* recent compression ratio << 8 */ 161 1.1 paulus }; 162 1.1 paulus 163 1.1 paulus struct ppp_comp_stats { 164 1.2 christos struct compstat c; /* packet compression statistics */ 165 1.2 christos struct compstat d; /* packet decompression statistics */ 166 1.1 paulus }; 167 1.1 paulus 168 1.1 paulus /* 169 1.1 paulus * The following structure records the time in seconds since 170 1.1 paulus * the last NP packet was sent or received. 171 1.1 paulus */ 172 1.1 paulus struct ppp_idle { 173 1.1 paulus time_t xmit_idle; /* time since last NP packet sent */ 174 1.1 paulus time_t recv_idle; /* time since last NP packet received */ 175 1.1 paulus }; 176 1.1 paulus 177 1.11 elad #endif /* !_NET_PPP_DEFS_H_ */ 178