ppp_defs.h revision 250887
11638Srgrimes/* 250476Speter * ppp_defs.h - PPP definitions. 31638Srgrimes */ 474856Sru/*- 589320Sdwhite * Copyright (c) 1994 The Australian National University. 613987Smpp * All rights reserved. 748210Sjmg * 848210Sjmg * Permission to use, copy, modify, and distribute this software and its 913987Smpp * documentation is hereby granted, provided that the above copyright 107139Sbde * notice appears in all copies. This software is provided without any 117139Sbde * warranty, express or implied. The Australian National University 127139Sbde * makes no representations about the suitability of this software for 137139Sbde * any purpose. 1433107Sjlemon * 1560435Sphantom * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY 1660435Sphantom * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 1760435Sphantom * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF 1860435Sphantom * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY 1961582Sjake * OF SUCH DAMAGE. 2060435Sphantom * 2160435Sphantom * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, 2260435Sphantom * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 2360435Sphantom * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 2460435Sphantom * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO 2560435Sphantom * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 2660435Sphantom * OR MODIFICATIONS. 2760435Sphantom * 2860435Sphantom * $FreeBSD: head/sys/net/ppp_defs.h 250887 2013-05-21 21:20:10Z ed $ 2960435Sphantom */ 3060435Sphantom 3160435Sphantom#ifndef _PPP_DEFS_H_ 3260435Sphantom#define _PPP_DEFS_H_ 3361582Sjake 3460435Sphantom#include <sys/_types.h> 3560435Sphantom 3660435Sphantom/* 3760435Sphantom * The basic PPP frame. 3860435Sphantom */ 3960435Sphantom#define PPP_HDRLEN 4 /* octets for standard ppp header */ 4060435Sphantom#define PPP_FCSLEN 2 /* octets for FCS */ 4160435Sphantom#define PPP_MRU 1500 /* default MRU = max length of info field */ 4260435Sphantom 4360435Sphantom#define PPP_ADDRESS(p) (((u_char *)(p))[0]) 4460435Sphantom#define PPP_CONTROL(p) (((u_char *)(p))[1]) 4561582Sjake#define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) 4660435Sphantom 4760435Sphantom/* 4860435Sphantom * Significant octet values. 4960435Sphantom */ 5060435Sphantom#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ 5160435Sphantom#define PPP_UI 0x03 /* Unnumbered Information */ 5215058Smpp#define PPP_FLAG 0x7e /* Flag Sequence */ 5360435Sphantom#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ 5460435Sphantom#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ 5560435Sphantom 5660435Sphantom/* 5761582Sjake * Protocol field values. 5861582Sjake */ 5960435Sphantom#define PPP_IP 0x21 /* Internet Protocol */ 6061582Sjake#define PPP_XNS 0x25 /* Xerox NS */ 6160435Sphantom#define PPP_AT 0x29 /* AppleTalk Protocol */ 6260435Sphantom#define PPP_IPX 0x2b /* IPX Datagram (RFC1552) */ 6360435Sphantom#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ 6460435Sphantom#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ 6560435Sphantom#define PPP_COMP 0xfd /* compressed packet */ 6660435Sphantom#define PPP_IPCP 0x8021 /* IP Control Protocol */ 6760435Sphantom#define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ 6860435Sphantom#define PPP_IPXCP 0x802b /* IPX Control Protocol (RFC1552) */ 6960435Sphantom#define PPP_CCP 0x80fd /* Compression Control Protocol */ 7060435Sphantom#define PPP_LCP 0xc021 /* Link Control Protocol */ 711638Srgrimes#define PPP_PAP 0xc023 /* Password Authentication Protocol */ 721638Srgrimes#define PPP_LQR 0xc025 /* Link Quality Report protocol */ 731638Srgrimes#define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ 7489320Sdwhite#define PPP_CBCP 0xc029 /* Callback Control Protocol */ 7589320Sdwhite#define PPP_IPV6 0x57 /* Internet Protocol version 6*/ 761638Srgrimes#define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ 77 78/* 79 * Values for FCS calculations. 80 */ 81#define PPP_INITFCS 0xffff /* Initial FCS value */ 82#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ 83#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) 84 85/* 86 * Extended asyncmap - allows any character to be escaped. 87 */ 88typedef __uint32_t ext_accm[8]; 89 90/* 91 * What to do with network protocol (NP) packets. 92 */ 93enum NPmode { 94 NPMODE_PASS, /* pass the packet through */ 95 NPMODE_DROP, /* silently drop the packet */ 96 NPMODE_ERROR, /* return an error */ 97 NPMODE_QUEUE /* save it up for later. */ 98}; 99 100/* 101 * Statistics. 102 */ 103struct pppstat { 104 unsigned int ppp_ibytes; /* bytes received */ 105 unsigned int ppp_ipackets; /* packets received */ 106 unsigned int ppp_ierrors; /* receive errors */ 107 unsigned int ppp_obytes; /* bytes sent */ 108 unsigned int ppp_opackets; /* packets sent */ 109 unsigned int ppp_oerrors; /* transmit errors */ 110}; 111 112struct vjstat { 113 unsigned int vjs_packets; /* outbound packets */ 114 unsigned int vjs_compressed; /* outbound compressed packets */ 115 unsigned int vjs_searches; /* searches for connection state */ 116 unsigned int vjs_misses; /* times couldn't find conn. state */ 117 unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ 118 unsigned int vjs_compressedin; /* inbound compressed packets */ 119 unsigned int vjs_errorin; /* inbound unknown type packets */ 120 unsigned int vjs_tossed; /* inbound packets tossed because of error */ 121}; 122 123struct ppp_stats { 124 struct pppstat p; /* basic PPP statistics */ 125 struct vjstat vj; /* VJ header compression statistics */ 126}; 127 128struct compstat { 129 unsigned int unc_bytes; /* total uncompressed bytes */ 130 unsigned int unc_packets; /* total uncompressed packets */ 131 unsigned int comp_bytes; /* compressed bytes */ 132 unsigned int comp_packets; /* compressed packets */ 133 unsigned int inc_bytes; /* incompressible bytes */ 134 unsigned int inc_packets; /* incompressible packets */ 135 unsigned int ratio; /* recent compression ratio << 8 */ 136}; 137 138struct ppp_comp_stats { 139 struct compstat c; /* packet compression statistics */ 140 struct compstat d; /* packet decompression statistics */ 141}; 142 143/* 144 * The following structure records the time in seconds since 145 * the last NP packet was sent or received. 146 */ 147struct ppp_idle { 148 __time_t xmit_idle; /* time since last NP packet sent */ 149 __time_t recv_idle; /* time since last NP packet received */ 150}; 151 152#ifndef __P 153#ifdef __STDC__ 154#define __P(x) x 155#else 156#define __P(x) () 157#endif 158#endif 159 160#endif /* _PPP_DEFS_H_ */ 161