interface.h revision 1.34
1/* $OpenBSD: interface.h,v 1.34 2002/11/30 00:20:46 deraadt Exp $ */ 2 3/* 4 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that: (1) source code distributions 9 * retain the above copyright notice and this paragraph in its entirety, (2) 10 * distributions including binary code include the above copyright notice and 11 * this paragraph in its entirety in the documentation or other materials 12 * provided with the distribution, and (3) all advertising materials mentioning 13 * features or use of this software display the following acknowledgement: 14 * ``This product includes software developed by the University of California, 15 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 16 * the University nor the names of its contributors may be used to endorse 17 * or promote products derived from this software without specific prior 18 * written permission. 19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 20 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 22 * 23 * @(#) $Header: /usr/local/opengrok/home/cvs-mirror/mirrors/openbsd/src/usr.sbin/tcpdump/interface.h,v 1.34 2002/11/30 00:20:46 deraadt Exp $ (LBL) 24 */ 25 26#ifndef tcpdump_interface_h 27#define tcpdump_interface_h 28 29#include "gnuc.h" 30#ifdef HAVE_OS_PROTO_H 31#include "os-proto.h" 32#endif 33 34struct tok { 35 int v; /* value */ 36 char *s; /* string */ 37}; 38 39extern int aflag; /* translate network and broadcast addresses */ 40extern int dflag; /* print filter code */ 41extern int eflag; /* print ethernet header */ 42extern int fflag; /* don't translate "foreign" IP address */ 43extern int nflag; /* leave addresses as numbers */ 44extern int Nflag; /* remove domains from printed host names */ 45extern int qflag; /* quick (shorter) output */ 46extern int Sflag; /* print raw TCP sequence numbers */ 47extern int tflag; /* print packet arrival time */ 48extern int vflag; /* verbose */ 49extern int xflag; /* print packet in hex */ 50extern int Xflag; /* print packet in hex/ascii */ 51 52extern int packettype; /* as specified by -T */ 53#define PT_VAT 1 /* Visual Audio Tool */ 54#define PT_WB 2 /* distributed White Board */ 55#define PT_RPC 3 /* Remote Procedure Call */ 56#define PT_RTP 4 /* Real-Time Applications protocol */ 57#define PT_RTCP 5 /* Real-Time Applications control protocol */ 58#define PT_CNFP 6 /* Cisco NetFlow protocol */ 59 60#ifndef min 61#define min(a,b) ((a)>(b)?(b):(a)) 62#endif 63#ifndef max 64#define max(a,b) ((b)>(a)?(b):(a)) 65#endif 66 67#ifndef INET6 68/* 69 * The default snapshot length. This value allows most printers to print 70 * useful information while keeping the amount of unwanted data down. 71 * In particular, it allows for an ethernet header, tcp/ip header, and 72 * 14 bytes of data (assuming no ip options). 73 */ 74#define DEFAULT_SNAPLEN 68 75#else 76#define DEFAULT_SNAPLEN 96 77#endif /* INET6 */ 78#define SACK_SNAPLEN 94 79 80#ifndef BIG_ENDIAN 81#define BIG_ENDIAN 4321 82#define LITTLE_ENDIAN 1234 83#endif 84 85#ifdef ETHER_HEADER_HAS_EA 86#define ESRC(ep) ((ep)->ether_shost.ether_addr_octet) 87#define EDST(ep) ((ep)->ether_dhost.ether_addr_octet) 88#else 89#define ESRC(ep) ((ep)->ether_shost) 90#define EDST(ep) ((ep)->ether_dhost) 91#endif 92 93#ifdef ETHER_ARP_HAS_X 94#define SHA(ap) ((ap)->arp_xsha) 95#define THA(ap) ((ap)->arp_xtha) 96#define SPA(ap) ((ap)->arp_xspa) 97#define TPA(ap) ((ap)->arp_xtpa) 98#else 99#ifdef ETHER_ARP_HAS_EA 100#define SHA(ap) ((ap)->arp_sha.ether_addr_octet) 101#define THA(ap) ((ap)->arp_tha.ether_addr_octet) 102#else 103#define SHA(ap) ((ap)->arp_sha) 104#define THA(ap) ((ap)->arp_tha) 105#endif 106#define SPA(ap) ((ap)->arp_spa) 107#define TPA(ap) ((ap)->arp_tpa) 108#endif 109 110#ifndef NTOHL 111#define NTOHL(x) (x) = ntohl(x) 112#define NTOHS(x) (x) = ntohs(x) 113#define HTONL(x) (x) = htonl(x) 114#define HTONS(x) (x) = htons(x) 115#endif 116#endif 117 118extern char *program_name; /* used to generate self-identifying messages */ 119 120extern int32_t thiszone; /* seconds offset from gmt to local time */ 121 122extern int snaplen; 123/* global pointers to beginning and end of current packet (during printing) */ 124extern const u_char *packetp; 125extern const u_char *snapend; 126 127/* 128 * True if "l" bytes of "var" were captured. 129 * 130 * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large 131 * that "snapend - (l)" underflows. 132 * 133 * The check is for <= rather than < because "l" might be 0. 134 */ 135#define TTEST2(var, l) (snapend - (l) <= snapend && \ 136 (const u_char *)&(var) <= snapend - (l)) 137 138/* True if "var" was captured */ 139#define TTEST(var) TTEST2(var, sizeof(var)) 140 141/* Bail if "l" bytes of "var" were not captured */ 142#define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc 143 144/* Bail if "var" was not captured */ 145#define TCHECK(var) TCHECK2(var, sizeof(var)) 146 147struct timeval; 148struct bpf_timeval; 149 150extern void ts_print(const struct bpf_timeval *); 151 152extern int fn_print(const u_char *, const u_char *); 153extern int fn_printn(const u_char *, u_int, const u_char *); 154extern void relts_print(int); 155extern const char *tok2str(const struct tok *, const char *, int); 156extern char *dnaddr_string(u_short); 157extern void safeputs(const char *); 158extern void safeputchar(int); 159 160extern void wrapup(int); 161 162extern __dead void error(const char *, ...) 163 __attribute__((volatile, format (printf, 1, 2))); 164extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2))); 165 166extern char *read_infile(char *); 167extern char *copy_argv(char **); 168 169extern char *isonsap_string(const u_char *); 170extern char *llcsap_string(u_char); 171extern char *protoid_string(const u_char *); 172extern char *dnname_string(u_short); 173extern char *dnnum_string(u_short); 174 175/* The printer routines. */ 176 177struct pcap_pkthdr; 178 179extern int ether_encap_print(u_short, const u_char *, u_int, u_int); 180extern int llc_print(const u_char *, u_int, u_int, const u_char *, 181 const u_char *); 182extern int pppoe_if_print(u_short, const u_char *, u_int, u_int); 183extern void aarp_print(const u_char *, u_int); 184extern void arp_print(const u_char *, u_int, u_int); 185extern void atalk_print(const u_char *, u_int); 186extern void atalk_print_llap(const u_char *, u_int); 187extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 188extern void bootp_print(const u_char *, u_int, u_short, u_short); 189extern void bgp_print(const u_char *, int); 190extern void decnet_print(const u_char *, u_int, u_int); 191extern void default_print(const u_char *, u_int); 192extern void default_print_unaligned(const u_char *, u_int); 193extern void dvmrp_print(const u_char *, u_int); 194extern void egp_print(const u_char *, u_int, const u_char *); 195extern void enc_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 196extern void pflog_if_print(u_char *, const struct pcap_pkthdr *, 197 const u_char *); 198extern void ether_if_print(u_char *, const struct pcap_pkthdr *, 199 const u_char *); 200extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 201extern void gre_print(const u_char *, u_int); 202extern void icmp_print(const u_char *, const u_char *); 203extern void igrp_print(const u_char *, u_int, const u_char *); 204extern void ip_print(const u_char *, u_int); 205extern void ipx_print(const u_char *, u_int); 206extern void isoclns_print(const u_char *, u_int, u_int, const u_char *, 207 const u_char *); 208extern void krb_print(const u_char *, u_int); 209extern void netbeui_print(u_short, const u_char *, const u_char *); 210extern void ipx_netbios_print(const u_char *, const u_char *); 211extern void nbt_tcp_print(const u_char *, int); 212extern void nbt_udp137_print(const u_char *data, int); 213extern void nbt_udp138_print(const u_char *data, int); 214extern char *smb_errstr(int, int); 215extern void print_data(const unsigned char *, int); 216extern void l2tp_print(const u_char *dat, u_int length); 217extern void vrrp_print(const u_char *bp, u_int len, int ttl); 218extern void hsrp_print(const u_char *, u_int); 219extern void nfsreply_print(const u_char *, u_int, const u_char *); 220extern void nfsreq_print(const u_char *, u_int, const u_char *); 221extern void ns_print(const u_char *, u_int); 222extern void ntp_print(const u_char *, u_int); 223extern void loop_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 224extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 225extern void ospf_print(const u_char *, u_int, const u_char *); 226extern void mobile_print(const u_char *, u_int); 227extern void pim_print(const u_char *, u_int); 228extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 229extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 230extern void rip_print(const u_char *, u_int); 231extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 232extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *, 233 const u_char *); 234extern void snmp_print(const u_char *, u_int); 235extern void sunrpcrequest_print(const u_char *, u_int, const u_char *); 236extern void cnfp_print(const u_char *, u_int, const u_char *); 237extern void tcp_print(const u_char *, u_int, const u_char *); 238extern void tftp_print(const u_char *, u_int); 239extern void timed_print(const u_char *, u_int); 240extern void udp_print(const u_char *, u_int, const u_char *); 241extern void wb_print(const void *, u_int); 242extern void ike_print(const u_char *, u_int); 243extern void ah_print(const u_char *, u_int, const u_char *); 244extern void esp_print(const u_char *, u_int, const u_char *); 245extern void cdp_print(const u_char *, u_int, u_int, const u_char *, 246 const u_char *); 247extern void stp_print(const u_char *, u_int); 248extern void radius_print(const u_char *, u_int); 249extern void lwres_print(const u_char *, u_int); 250extern void ether_print(const u_char *, u_int); 251extern void etherip_print(const u_char *, u_int, const u_char *); 252 253#ifdef INET6 254extern void ip6_print(const u_char *, int); 255extern void ip6_opt_print(const u_char *, int); 256extern int hbhopt_print(const u_char *); 257extern int dstopt_print(const u_char *); 258extern int frag6_print(const u_char *, const u_char *); 259extern void icmp6_print(const u_char *, const u_char *); 260extern void ripng_print(const u_char *, int); 261extern int rt6_print(const u_char *, const u_char *); 262extern void ospf6_print(const u_char *, u_int); 263extern void dhcp6_print(const u_char *, u_int, u_short, u_short); 264#endif /*INET6*/ 265 266extern u_short in_cksum(const u_short *addr, register int len, u_short csum); 267