| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * The contents of this file constitute Original Code as defined in and |
| | 7 | * are subject to the Apple Public Source License Version 1.1 (the |
| | 8 | * "License"). You may not use this file except in compliance with the |
| | 9 | * License. Please obtain a copy of the License at |
| | 10 | * http://www.apple.com/publicsource and read it before using this file. |
| | 11 | * |
| | 12 | * This Original Code and all software distributed under the License are |
| | 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| | 17 | * License for the specific language governing rights and limitations |
| | 18 | * under the License. |
| | 19 | * |
| | 20 | * @APPLE_LICENSE_HEADER_END@ |
| | 21 | */ |
| | 22 | /* |
| | 23 | * ppp_defs.h - PPP definitions. |
| | 24 | * |
| | 25 | * Copyright (c) 1994 The Australian National University. |
| | 26 | * All rights reserved. |
| | 27 | * |
| | 28 | * Permission to use, copy, modify, and distribute this software and its |
| | 29 | * documentation is hereby granted, provided that the above copyright |
| | 30 | * notice appears in all copies. This software is provided without any |
| | 31 | * warranty, express or implied. The Australian National University |
| | 32 | * makes no representations about the suitability of this software for |
| | 33 | * any purpose. |
| | 34 | * |
| | 35 | * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY |
| | 36 | * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| | 37 | * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF |
| | 38 | * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY |
| | 39 | * OF SUCH DAMAGE. |
| | 40 | * |
| | 41 | * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
| | 42 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
| | 43 | * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| | 44 | * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO |
| | 45 | * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, |
| | 46 | * OR MODIFICATIONS. |
| | 47 | * |
| | 48 | */ |
| | 49 | |
| | 50 | #ifndef _PPP_DEFS_H_ |
| | 51 | #define _PPP_DEFS_H_ |
| | 52 | #include <sys/appleapiopts.h> |
| | 53 | |
| | 54 | /* |
| | 55 | * The basic PPP frame. |
| | 56 | */ |
| | 57 | #define PPP_HDRLEN 4 /* octets for standard ppp header */ |
| | 58 | #define PPP_FCSLEN 2 /* octets for FCS */ |
| | 59 | #define PPP_MRU 1500 /* default MRU = max length of info field */ |
| | 60 | |
| | 61 | #define PPP_ADDRESS(p) (((u_char *)(p))[0]) |
| | 62 | #define PPP_CONTROL(p) (((u_char *)(p))[1]) |
| | 63 | #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) |
| | 64 | |
| | 65 | /* |
| | 66 | * Significant octet values. |
| | 67 | */ |
| | 68 | #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ |
| | 69 | #define PPP_UI 0x03 /* Unnumbered Information */ |
| | 70 | #define PPP_FLAG 0x7e /* Flag Sequence */ |
| | 71 | #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ |
| | 72 | #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ |
| | 73 | |
| | 74 | /* |
| | 75 | * Protocol field values. |
| | 76 | */ |
| | 77 | #define PPP_IP 0x21 /* Internet Protocol */ |
| | 78 | #define PPP_XNS 0x25 /* Xerox NS */ |
| | 79 | #define PPP_AT 0x29 /* AppleTalk Protocol */ |
| | 80 | #define PPP_IPX 0x2b /* IPX Datagram (RFC1552) */ |
| | 81 | #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ |
| | 82 | #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ |
| | 83 | #define PPP_COMP 0xfd /* compressed packet */ |
| | 84 | #define PPP_IPCP 0x8021 /* IP Control Protocol */ |
| | 85 | #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ |
| | 86 | #define PPP_IPXCP 0x802b /* IPX Control Protocol (RFC1552) */ |
| | 87 | #define PPP_CCP 0x80fd /* Compression Control Protocol */ |
| | 88 | #define PPP_LCP 0xc021 /* Link Control Protocol */ |
| | 89 | #define PPP_PAP 0xc023 /* Password Authentication Protocol */ |
| | 90 | #define PPP_LQR 0xc025 /* Link Quality Report protocol */ |
| | 91 | #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ |
| | 92 | #define PPP_CBCP 0xc029 /* Callback Control Protocol */ |
| | 93 | #define PPP_IPV6 0x57 /* Internet Protocol version 6*/ |
| | 94 | #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ |
| | 95 | |
| | 96 | /* |
| | 97 | * Values for FCS calculations. |
| | 98 | */ |
| | 99 | #define PPP_INITFCS 0xffff /* Initial FCS value */ |
| | 100 | #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ |
| | 101 | #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) |
| | 102 | |
| | 103 | /* |
| | 104 | * Extended asyncmap - allows any character to be escaped. |
| | 105 | */ |
| | 106 | typedef u_int32_t ext_accm[8]; |
| | 107 | |
| | 108 | /* |
| | 109 | * What to do with network protocol (NP) packets. |
| | 110 | */ |
| | 111 | enum NPmode { |
| | 112 | NPMODE_PASS, /* pass the packet through */ |
| | 113 | NPMODE_DROP, /* silently drop the packet */ |
| | 114 | NPMODE_ERROR, /* return an error */ |
| | 115 | NPMODE_QUEUE /* save it up for later. */ |
| | 116 | }; |
| | 117 | |
| | 118 | /* |
| | 119 | * Statistics. |
| | 120 | */ |
| | 121 | struct pppstat { |
| | 122 | unsigned int ppp_ibytes; /* bytes received */ |
| | 123 | unsigned int ppp_ipackets; /* packets received */ |
| | 124 | unsigned int ppp_ierrors; /* receive errors */ |
| | 125 | unsigned int ppp_obytes; /* bytes sent */ |
| | 126 | unsigned int ppp_opackets; /* packets sent */ |
| | 127 | unsigned int ppp_oerrors; /* transmit errors */ |
| | 128 | }; |
| | 129 | |
| | 130 | struct vjstat { |
| | 131 | unsigned int vjs_packets; /* outbound packets */ |
| | 132 | unsigned int vjs_compressed; /* outbound compressed packets */ |
| | 133 | unsigned int vjs_searches; /* searches for connection state */ |
| | 134 | unsigned int vjs_misses; /* times couldn't find conn. state */ |
| | 135 | unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ |
| | 136 | unsigned int vjs_compressedin; /* inbound compressed packets */ |
| | 137 | unsigned int vjs_errorin; /* inbound unknown type packets */ |
| | 138 | unsigned int vjs_tossed; /* inbound packets tossed because of error */ |
| | 139 | }; |
| | 140 | |
| | 141 | struct ppp_stats { |
| | 142 | struct pppstat p; /* basic PPP statistics */ |
| | 143 | struct vjstat vj; /* VJ header compression statistics */ |
| | 144 | }; |
| | 145 | |
| | 146 | struct compstat { |
| | 147 | unsigned int unc_bytes; /* total uncompressed bytes */ |
| | 148 | unsigned int unc_packets; /* total uncompressed packets */ |
| | 149 | unsigned int comp_bytes; /* compressed bytes */ |
| | 150 | unsigned int comp_packets; /* compressed packets */ |
| | 151 | unsigned int inc_bytes; /* incompressible bytes */ |
| | 152 | unsigned int inc_packets; /* incompressible packets */ |
| | 153 | unsigned int ratio; /* recent compression ratio << 8 */ |
| | 154 | }; |
| | 155 | |
| | 156 | struct ppp_comp_stats { |
| | 157 | struct compstat c; /* packet compression statistics */ |
| | 158 | struct compstat d; /* packet decompression statistics */ |
| | 159 | }; |
| | 160 | |
| | 161 | /* |
| | 162 | * The following structure records the time in seconds since |
| | 163 | * the last NP packet was sent or received. |
| | 164 | */ |
| | 165 | struct ppp_idle { |
| | 166 | time_t xmit_idle; /* time since last NP packet sent */ |
| | 167 | time_t recv_idle; /* time since last NP packet received */ |
| | 168 | }; |
| | 169 | |
| | 170 | #ifndef __P |
| | 171 | #ifdef __STDC__ |
| | 172 | #define __P(x) x |
| | 173 | #else |
| | 174 | #define __P(x) () |
| | 175 | #endif |
| | 176 | #endif |
| | 177 | |
| | 178 | #endif /* _PPP_DEFS_H_ */ |
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