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| Rev | Author | Line No. | Line |
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| 422 | giacomo | 1 | /* $Id: ppp_defs.h,v 1.1 2004-01-28 15:26:22 giacomo Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * ppp_defs.h - PPP definitions. |
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| 5 | * |
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| 6 | * Copyright (c) 1994 The Australian National University. |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Permission to use, copy, modify, and distribute this software and its |
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| 10 | * documentation is hereby granted, provided that the above copyright |
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| 11 | * notice appears in all copies. This software is provided without any |
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| 12 | * warranty, express or implied. The Australian National University |
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| 13 | * makes no representations about the suitability of this software for |
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| 14 | * any purpose. |
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| 15 | * |
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| 16 | * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY |
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| 17 | * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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| 18 | * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF |
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| 19 | * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY |
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| 20 | * OF SUCH DAMAGE. |
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| 21 | * |
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| 22 | * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
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| 23 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
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| 24 | * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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| 25 | * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO |
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| 26 | * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, |
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| 27 | * OR MODIFICATIONS. |
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| 28 | */ |
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| 29 | |||
| 30 | /* |
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| 31 | * ==FILEVERSION 20000114== |
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| 32 | * |
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| 33 | * NOTE TO MAINTAINERS: |
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| 34 | * If you modify this file at all, please set the above date. |
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| 35 | * ppp_defs.h is shipped with a PPP distribution as well as with the kernel; |
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| 36 | * if everyone increases the FILEVERSION number above, then scripts |
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| 37 | * can do the right thing when deciding whether to install a new ppp_defs.h |
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| 38 | * file. Don't change the format of that line otherwise, so the |
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| 39 | * installation script can recognize it. |
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| 40 | */ |
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| 41 | |||
| 42 | #ifndef _PPP_DEFS_H_ |
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| 43 | #define _PPP_DEFS_H_ |
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| 44 | |||
| 45 | /* |
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| 46 | * The basic PPP frame. |
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| 47 | */ |
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| 48 | #define PPP_HDRLEN 4 /* octets for standard ppp header */ |
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| 49 | #define PPP_FCSLEN 2 /* octets for FCS */ |
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| 50 | #define PPP_MRU 1500 /* default MRU = max length of info field */ |
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| 51 | |||
| 52 | #define PPP_ADDRESS(p) (((__u8 *)(p))[0]) |
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| 53 | #define PPP_CONTROL(p) (((__u8 *)(p))[1]) |
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| 54 | #define PPP_PROTOCOL(p) ((((__u8 *)(p))[2] << 8) + ((__u8 *)(p))[3]) |
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| 55 | |||
| 56 | /* |
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| 57 | * Significant octet values. |
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| 58 | */ |
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| 59 | #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ |
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| 60 | #define PPP_UI 0x03 /* Unnumbered Information */ |
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| 61 | #define PPP_FLAG 0x7e /* Flag Sequence */ |
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| 62 | #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ |
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| 63 | #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ |
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| 64 | |||
| 65 | /* |
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| 66 | * Protocol field values. |
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| 67 | */ |
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| 68 | #define PPP_IP 0x21 /* Internet Protocol */ |
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| 69 | #define PPP_AT 0x29 /* AppleTalk Protocol */ |
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| 70 | #define PPP_IPX 0x2b /* IPX protocol */ |
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| 71 | #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ |
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| 72 | #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ |
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| 73 | #define PPP_MP 0x3d /* Multilink protocol */ |
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| 74 | #define PPP_IPV6 0x57 /* Internet Protocol Version 6 */ |
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| 75 | #define PPP_COMPFRAG 0xfb /* fragment compressed below bundle */ |
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| 76 | #define PPP_COMP 0xfd /* compressed packet */ |
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| 77 | #define PPP_MPLS_UC 0x0281 /* Multi Protocol Label Switching - Unicast */ |
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| 78 | #define PPP_MPLS_MC 0x0283 /* Multi Protocol Label Switching - Multicast */ |
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| 79 | #define PPP_IPCP 0x8021 /* IP Control Protocol */ |
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| 80 | #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ |
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| 81 | #define PPP_IPXCP 0x802b /* IPX Control Protocol */ |
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| 82 | #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ |
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| 83 | #define PPP_CCPFRAG 0x80fb /* CCP at link level (below MP bundle) */ |
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| 84 | #define PPP_CCP 0x80fd /* Compression Control Protocol */ |
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| 85 | #define PPP_MPLSCP 0x80fd /* MPLS Control Protocol */ |
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| 86 | #define PPP_LCP 0xc021 /* Link Control Protocol */ |
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| 87 | #define PPP_PAP 0xc023 /* Password Authentication Protocol */ |
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| 88 | #define PPP_LQR 0xc025 /* Link Quality Report protocol */ |
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| 89 | #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ |
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| 90 | #define PPP_CBCP 0xc029 /* Callback Control Protocol */ |
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| 91 | |||
| 92 | /* |
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| 93 | * Values for FCS calculations. |
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| 94 | */ |
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| 95 | |||
| 96 | #define PPP_INITFCS 0xffff /* Initial FCS value */ |
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| 97 | #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ |
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| 98 | #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) |
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| 99 | |||
| 100 | /* |
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| 101 | * Extended asyncmap - allows any character to be escaped. |
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| 102 | */ |
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| 103 | |||
| 104 | typedef __u32 ext_accm[8]; |
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| 105 | |||
| 106 | /* |
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| 107 | * What to do with network protocol (NP) packets. |
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| 108 | */ |
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| 109 | enum NPmode { |
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| 110 | NPMODE_PASS, /* pass the packet through */ |
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| 111 | NPMODE_DROP, /* silently drop the packet */ |
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| 112 | NPMODE_ERROR, /* return an error */ |
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| 113 | NPMODE_QUEUE /* save it up for later. */ |
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| 114 | }; |
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| 115 | |||
| 116 | /* |
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| 117 | * Statistics for LQRP and pppstats |
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| 118 | */ |
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| 119 | struct pppstat { |
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| 120 | __u32 ppp_discards; /* # frames discarded */ |
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| 121 | |||
| 122 | __u32 ppp_ibytes; /* bytes received */ |
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| 123 | __u32 ppp_ioctects; /* bytes received not in error */ |
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| 124 | __u32 ppp_ipackets; /* packets received */ |
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| 125 | __u32 ppp_ierrors; /* receive errors */ |
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| 126 | __u32 ppp_ilqrs; /* # LQR frames received */ |
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| 127 | |||
| 128 | __u32 ppp_obytes; /* raw bytes sent */ |
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| 129 | __u32 ppp_ooctects; /* frame bytes sent */ |
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| 130 | __u32 ppp_opackets; /* packets sent */ |
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| 131 | __u32 ppp_oerrors; /* transmit errors */ |
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| 132 | __u32 ppp_olqrs; /* # LQR frames sent */ |
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| 133 | }; |
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| 134 | |||
| 135 | struct vjstat { |
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| 136 | __u32 vjs_packets; /* outbound packets */ |
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| 137 | __u32 vjs_compressed; /* outbound compressed packets */ |
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| 138 | __u32 vjs_searches; /* searches for connection state */ |
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| 139 | __u32 vjs_misses; /* times couldn't find conn. state */ |
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| 140 | __u32 vjs_uncompressedin; /* inbound uncompressed packets */ |
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| 141 | __u32 vjs_compressedin; /* inbound compressed packets */ |
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| 142 | __u32 vjs_errorin; /* inbound unknown type packets */ |
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| 143 | __u32 vjs_tossed; /* inbound packets tossed because of error */ |
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| 144 | }; |
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| 145 | |||
| 146 | struct compstat { |
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| 147 | __u32 unc_bytes; /* total uncompressed bytes */ |
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| 148 | __u32 unc_packets; /* total uncompressed packets */ |
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| 149 | __u32 comp_bytes; /* compressed bytes */ |
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| 150 | __u32 comp_packets; /* compressed packets */ |
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| 151 | __u32 inc_bytes; /* incompressible bytes */ |
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| 152 | __u32 inc_packets; /* incompressible packets */ |
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| 153 | |||
| 154 | /* the compression ratio is defined as in_count / bytes_out */ |
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| 155 | __u32 in_count; /* Bytes received */ |
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| 156 | __u32 bytes_out; /* Bytes transmitted */ |
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| 157 | |||
| 158 | double ratio; /* not computed in kernel. */ |
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| 159 | }; |
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| 160 | |||
| 161 | struct ppp_stats { |
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| 162 | struct pppstat p; /* basic PPP statistics */ |
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| 163 | struct vjstat vj; /* VJ header compression statistics */ |
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| 164 | }; |
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| 165 | |||
| 166 | struct ppp_comp_stats { |
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| 167 | struct compstat c; /* packet compression statistics */ |
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| 168 | struct compstat d; /* packet decompression statistics */ |
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| 169 | }; |
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| 170 | |||
| 171 | /* |
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| 172 | * The following structure records the time in seconds since |
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| 173 | * the last NP packet was sent or received. |
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| 174 | */ |
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| 175 | struct ppp_idle { |
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| 176 | time_t xmit_idle; /* time since last NP packet sent */ |
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| 177 | time_t recv_idle; /* time since last NP packet received */ |
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| 178 | }; |
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| 179 | |||
| 180 | #ifndef __P |
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| 181 | #ifdef __STDC__ |
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| 182 | #define __P(x) x |
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| 183 | #else |
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| 184 | #define __P(x) () |
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| 185 | #endif |
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| 186 | #endif |
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| 187 | |||
| 188 | #endif /* _PPP_DEFS_H_ */ |