Annotation of sys/net/ppp_defs.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ppp_defs.h,v 1.13 2002/09/13 00:12:07 deraadt Exp $ */
! 2: /* $NetBSD: ppp_defs.h,v 1.1 1995/07/04 06:28:26 paulus Exp $ */
! 3:
! 4: /*
! 5: * ppp_defs.h - PPP definitions.
! 6: *
! 7: * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: *
! 13: * 1. Redistributions of source code must retain the above copyright
! 14: * notice, this list of conditions and the following disclaimer.
! 15: *
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in
! 18: * the documentation and/or other materials provided with the
! 19: * distribution.
! 20: *
! 21: * 3. The name(s) of the authors of this software must not be used to
! 22: * endorse or promote products derived from this software without
! 23: * prior written permission.
! 24: *
! 25: * 4. Redistributions of any form whatsoever must retain the following
! 26: * acknowledgment:
! 27: * "This product includes software developed by Paul Mackerras
! 28: * <paulus@samba.org>".
! 29: *
! 30: * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
! 31: * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
! 32: * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
! 33: * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 34: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
! 35: * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
! 36: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 37: */
! 38:
! 39: #ifndef _PPP_DEFS_H_
! 40: #define _PPP_DEFS_H_
! 41:
! 42: /*
! 43: * The basic PPP frame.
! 44: */
! 45: #define PPP_HDRLEN 4 /* octets for standard ppp header */
! 46: #define PPP_FCSLEN 2 /* octets for FCS */
! 47: #define PPP_MRU 1500 /* default MRU = max length of info field */
! 48:
! 49: #define PPP_ADDRESS(p) (((u_char *)(p))[0])
! 50: #define PPP_CONTROL(p) (((u_char *)(p))[1])
! 51: #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3])
! 52:
! 53: /*
! 54: * Significant octet values.
! 55: */
! 56: #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */
! 57: #define PPP_UI 0x03 /* Unnumbered Information */
! 58: #define PPP_FLAG 0x7e /* Flag Sequence */
! 59: #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */
! 60: #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */
! 61:
! 62: /*
! 63: * Protocol field values.
! 64: */
! 65: #define PPP_IP 0x21 /* Internet Protocol */
! 66: #define PPP_XNS 0x25 /* Xerox NS */
! 67: #define PPP_AT 0x29 /* AppleTalk Protocol */
! 68: #define PPP_IPX 0x2b /* Internetwork Packet Exchange */
! 69: #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
! 70: #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
! 71: #define PPP_IPV6 0x57 /* Internet Protocol Version 6 */
! 72: #define PPP_COMP 0xfd /* compressed packet */
! 73: #define PPP_IPCP 0x8021 /* IP Control Protocol */
! 74: #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */
! 75: #define PPP_IPXCP 0x802b /* IPX Control Protocol */
! 76: #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */
! 77: #define PPP_CCP 0x80fd /* Compression Control Protocol */
! 78: #define PPP_LCP 0xc021 /* Link Control Protocol */
! 79: #define PPP_PAP 0xc023 /* Password Authentication Protocol */
! 80: #define PPP_LQR 0xc025 /* Link Quality Report protocol */
! 81: #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */
! 82: #define PPP_CBCP 0xc029 /* Callback Control Protocol */
! 83:
! 84: /*
! 85: * Values for FCS calculations.
! 86: */
! 87: #define PPP_INITFCS 0xffff /* Initial FCS value */
! 88: #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
! 89: #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
! 90:
! 91: /*
! 92: * A 32-bit unsigned integral type.
! 93: */
! 94: #ifndef __BIT_TYPES_DEFINED__
! 95: #ifdef UINT32_T
! 96: typedef UINT32_T u_int32_t;
! 97: #else
! 98: typedef unsigned int u_int32_t;
! 99: typedef unsigned short u_int16_t;
! 100: #endif
! 101: #endif
! 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: u_int ppp_ibytes; /* bytes received */
! 123: u_int ppp_ipackets; /* packets received */
! 124: u_int ppp_ierrors; /* receive errors */
! 125: u_int ppp_obytes; /* bytes sent */
! 126: u_int ppp_opackets; /* packets sent */
! 127: u_int ppp_oerrors; /* transmit errors */
! 128: };
! 129:
! 130: struct vjstat {
! 131: u_int vjs_packets; /* outbound packets */
! 132: u_int vjs_compressed; /* outbound compressed packets */
! 133: u_int vjs_searches; /* searches for connection state */
! 134: u_int vjs_misses; /* times couldn't find conn. state */
! 135: u_int vjs_uncompressedin; /* inbound uncompressed packets */
! 136: u_int vjs_compressedin; /* inbound compressed packets */
! 137: u_int vjs_errorin; /* inbound unknown type packets */
! 138: u_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: u_int unc_bytes; /* total uncompressed bytes */
! 148: u_int unc_packets; /* total uncompressed packets */
! 149: u_int comp_bytes; /* compressed bytes */
! 150: u_int comp_packets; /* compressed packets */
! 151: u_int inc_bytes; /* incompressible bytes */
! 152: u_int inc_packets; /* incompressible packets */
! 153: u_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: #endif /* _PPP_DEFS_H_ */
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