/* $OpenBSD: ppp_defs.h,v 1.13 2002/09/13 00:12:07 deraadt Exp $ */ /* $NetBSD: ppp_defs.h,v 1.1 1995/07/04 06:28:26 paulus Exp $ */ /* * ppp_defs.h - PPP definitions. * * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The name(s) of the authors of this software must not be used to * endorse or promote products derived from this software without * prior written permission. * * 4. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by Paul Mackerras * <paulus@samba.org>". * * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _PPP_DEFS_H_ #define _PPP_DEFS_H_ /* * The basic PPP frame. */ #define PPP_HDRLEN 4 /* octets for standard ppp header */ #define PPP_FCSLEN 2 /* octets for FCS */ #define PPP_MRU 1500 /* default MRU = max length of info field */ #define PPP_ADDRESS(p) (((u_char *)(p))[0]) #define PPP_CONTROL(p) (((u_char *)(p))[1]) #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) /* * Significant octet values. */ #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ #define PPP_UI 0x03 /* Unnumbered Information */ #define PPP_FLAG 0x7e /* Flag Sequence */ #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ /* * Protocol field values. */ #define PPP_IP 0x21 /* Internet Protocol */ #define PPP_XNS 0x25 /* Xerox NS */ #define PPP_AT 0x29 /* AppleTalk Protocol */ #define PPP_IPX 0x2b /* Internetwork Packet Exchange */ #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ #define PPP_IPV6 0x57 /* Internet Protocol Version 6 */ #define PPP_COMP 0xfd /* compressed packet */ #define PPP_IPCP 0x8021 /* IP Control Protocol */ #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ #define PPP_IPXCP 0x802b /* IPX Control Protocol */ #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ #define PPP_CCP 0x80fd /* Compression Control Protocol */ #define PPP_LCP 0xc021 /* Link Control Protocol */ #define PPP_PAP 0xc023 /* Password Authentication Protocol */ #define PPP_LQR 0xc025 /* Link Quality Report protocol */ #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ #define PPP_CBCP 0xc029 /* Callback Control Protocol */ /* * Values for FCS calculations. */ #define PPP_INITFCS 0xffff /* Initial FCS value */ #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) /* * A 32-bit unsigned integral type. */ #ifndef __BIT_TYPES_DEFINED__ #ifdef UINT32_T typedef UINT32_T u_int32_t; #else typedef unsigned int u_int32_t; typedef unsigned short u_int16_t; #endif #endif /* * Extended asyncmap - allows any character to be escaped. */ typedef u_int32_t ext_accm[8]; /* * What to do with network protocol (NP) packets. */ enum NPmode { NPMODE_PASS, /* pass the packet through */ NPMODE_DROP, /* silently drop the packet */ NPMODE_ERROR, /* return an error */ NPMODE_QUEUE /* save it up for later. */ }; /* * Statistics. */ struct pppstat { u_int ppp_ibytes; /* bytes received */ u_int ppp_ipackets; /* packets received */ u_int ppp_ierrors; /* receive errors */ u_int ppp_obytes; /* bytes sent */ u_int ppp_opackets; /* packets sent */ u_int ppp_oerrors; /* transmit errors */ }; struct vjstat { u_int vjs_packets; /* outbound packets */ u_int vjs_compressed; /* outbound compressed packets */ u_int vjs_searches; /* searches for connection state */ u_int vjs_misses; /* times couldn't find conn. state */ u_int vjs_uncompressedin; /* inbound uncompressed packets */ u_int vjs_compressedin; /* inbound compressed packets */ u_int vjs_errorin; /* inbound unknown type packets */ u_int vjs_tossed; /* inbound packets tossed because of error */ }; struct ppp_stats { struct pppstat p; /* basic PPP statistics */ struct vjstat vj; /* VJ header compression statistics */ }; struct compstat { u_int unc_bytes; /* total uncompressed bytes */ u_int unc_packets; /* total uncompressed packets */ u_int comp_bytes; /* compressed bytes */ u_int comp_packets; /* compressed packets */ u_int inc_bytes; /* incompressible bytes */ u_int inc_packets; /* incompressible packets */ u_int ratio; /* recent compression ratio << 8 */ }; struct ppp_comp_stats { struct compstat c; /* packet compression statistics */ struct compstat d; /* packet decompression statistics */ }; /* * The following structure records the time in seconds since * the last NP packet was sent or received. */ struct ppp_idle { time_t xmit_idle; /* time since last NP packet sent */ time_t recv_idle; /* time since last NP packet received */ }; #endif /* _PPP_DEFS_H_ */
