1 /* 2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and 9 * this paragraph in its entirety in the documentation or other materials 10 * provided with the distribution, and (3) all advertising materials mentioning 11 * features or use of this software display the following acknowledgement: 12 * ``This product includes software developed by the University of California, 13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 14 * the University nor the names of its contributors may be used to endorse 15 * or promote products derived from this software without specific prior 16 * written permission. 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 20 * 21 * @(#) $Header: /tcpdump/master/tcpdump/interface.h,v 1.118 1999/12/22 15:44:09 itojun Exp $ (LBL) 22 * $FreeBSD$ 23 */ 24 25 #ifndef tcpdump_interface_h 26 #define tcpdump_interface_h 27 28 #include "gnuc.h" 29 #ifdef HAVE_OS_PROTO_H 30 #include "os-proto.h" 31 #endif 32 33 struct tok { 34 int v; /* value */ 35 char *s; /* string */ 36 }; 37 38 extern int aflag; /* translate network and broadcast addresses */ 39 extern int dflag; /* print filter code */ 40 extern int eflag; /* print ethernet header */ 41 extern int fflag; /* don't translate "foreign" IP address */ 42 extern int nflag; /* leave addresses as numbers */ 43 extern int Nflag; /* remove domains from printed host names */ 44 extern int qflag; /* quick (shorter) output */ 45 extern int Rflag; /* print sequence # field in AH/ESP*/ 46 extern int sflag; /* use the libsmi to translate OIDs */ 47 extern int Sflag; /* print raw TCP sequence numbers */ 48 extern int tflag; /* print packet arrival time */ 49 extern int vflag; /* verbose */ 50 extern int xflag; /* print packet in hex */ 51 extern int Xflag; /* print packet in hex/ascii */ 52 53 extern char *ahsecret; 54 extern char *espsecret; 55 56 extern int packettype; /* as specified by -T */ 57 #define PT_VAT 1 /* Visual Audio Tool */ 58 #define PT_WB 2 /* distributed White Board */ 59 #define PT_RPC 3 /* Remote Procedure Call */ 60 #define PT_RTP 4 /* Real-Time Applications protocol */ 61 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 62 #define PT_SNMP 6 /* Simple Network Management Protocol */ 63 64 #ifndef min 65 #define min(a,b) ((a)>(b)?(b):(a)) 66 #endif 67 #ifndef max 68 #define max(a,b) ((b)>(a)?(b):(a)) 69 #endif 70 71 #ifndef INET6 72 /* 73 * The default snapshot length. This value allows most printers to print 74 * useful information while keeping the amount of unwanted data down. 75 * In particular, it allows for an ethernet header, tcp/ip header, and 76 * 14 bytes of data (assuming no ip options). 77 */ 78 #define DEFAULT_SNAPLEN 68 79 #else 80 #define DEFAULT_SNAPLEN 96 81 #endif 82 83 #ifndef BIG_ENDIAN 84 #define BIG_ENDIAN 4321 85 #define LITTLE_ENDIAN 1234 86 #endif 87 88 #ifdef ETHER_HEADER_HAS_EA 89 #define ESRC(ep) ((ep)->ether_shost.ether_addr_octet) 90 #define EDST(ep) ((ep)->ether_dhost.ether_addr_octet) 91 #else 92 #define ESRC(ep) ((ep)->ether_shost) 93 #define EDST(ep) ((ep)->ether_dhost) 94 #endif 95 96 #ifdef ETHER_ARP_HAS_X 97 #define SHA(ap) ((ap)->arp_xsha) 98 #define THA(ap) ((ap)->arp_xtha) 99 #define SPA(ap) ((ap)->arp_xspa) 100 #define TPA(ap) ((ap)->arp_xtpa) 101 #else 102 #ifdef ETHER_ARP_HAS_EA 103 #define SHA(ap) ((ap)->arp_sha.ether_addr_octet) 104 #define THA(ap) ((ap)->arp_tha.ether_addr_octet) 105 #else 106 #define SHA(ap) ((ap)->arp_sha) 107 #define THA(ap) ((ap)->arp_tha) 108 #endif 109 #define SPA(ap) ((ap)->arp_spa) 110 #define TPA(ap) ((ap)->arp_tpa) 111 #endif 112 113 #ifndef NTOHL 114 #define NTOHL(x) (x) = ntohl(x) 115 #define NTOHS(x) (x) = ntohs(x) 116 #define HTONL(x) (x) = htonl(x) 117 #define HTONS(x) (x) = htons(x) 118 #endif 119 #endif 120 121 extern char *program_name; /* used to generate self-identifying messages */ 122 123 extern int32_t thiszone; /* seconds offset from gmt to local time */ 124 125 extern int snaplen; 126 /* global pointers to beginning and end of current packet (during printing) */ 127 extern const u_char *packetp; 128 extern const u_char *snapend; 129 130 /* True if "l" bytes of "var" were captured */ 131 #define TTEST2(var, l) ((u_char *)&(var) <= snapend - (l)) 132 133 /* True if "var" was captured */ 134 #define TTEST(var) TTEST2(var, sizeof(var)) 135 136 /* Bail if "l" bytes of "var" were not captured */ 137 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc 138 139 /* Bail if "var" was not captured */ 140 #define TCHECK(var) TCHECK2(var, sizeof(var)) 141 142 #ifdef __STDC__ 143 struct timeval; 144 #endif 145 146 extern void ts_print(const struct timeval *); 147 extern void relts_print(int); 148 149 extern int fn_print(const u_char *, const u_char *); 150 extern int fn_printn(const u_char *, u_int, const u_char *); 151 extern const char *tok2str(const struct tok *, const char *, int); 152 extern char *dnaddr_string(u_short); 153 154 extern void wrapup(int); 155 156 #if __STDC__ 157 extern __dead void error(const char *, ...) 158 __attribute__((volatile, format (printf, 1, 2))); 159 extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2))); 160 #endif 161 162 extern char *read_infile(char *); 163 extern char *copy_argv(char **); 164 165 extern char *isonsap_string(const u_char *); 166 extern char *llcsap_string(u_char); 167 extern char *protoid_string(const u_char *); 168 extern char *dnname_string(u_short); 169 extern char *dnnum_string(u_short); 170 171 /* The printer routines. */ 172 173 #ifdef __STDC__ 174 struct pcap_pkthdr; 175 #endif 176 177 extern void ascii_print_with_offset(const u_char *, u_int, u_int); 178 extern void ascii_print(const u_char *, u_int); 179 extern void hex_print_with_offset(const u_char *, u_int, u_int); 180 extern void telnet_print(const u_char *, u_int); 181 extern void hex_print(const u_char *, u_int); 182 extern int ether_encap_print(u_short, const u_char *, u_int, u_int); 183 extern int llc_print(const u_char *, u_int, u_int, const u_char *, 184 const u_char *); 185 extern void aarp_print(const u_char *, u_int); 186 extern void arp_print(const u_char *, u_int, u_int); 187 extern void atalk_print(const u_char *, u_int); 188 extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 189 extern void bootp_print(const u_char *, u_int, u_short, u_short); 190 extern void bgp_print(const u_char *, int); 191 extern void decnet_print(const u_char *, u_int, u_int); 192 extern void default_print(const u_char *, u_int); 193 extern void default_print_unaligned(const u_char *, u_int); 194 extern void dvmrp_print(const u_char *, u_int); 195 extern void egp_print(const u_char *, u_int, const u_char *); 196 extern void ether_if_print(u_char *, const struct pcap_pkthdr *, 197 const u_char *); 198 extern void token_if_print(u_char *, const struct pcap_pkthdr *, 199 const u_char *); 200 extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 201 extern void gre_print(const u_char *, u_int); 202 extern void icmp_print(const u_char *, u_int, const u_char *); 203 extern void igrp_print(const u_char *, u_int, const u_char *); 204 extern void ip_print(const u_char *, u_int); 205 extern void ipx_print(const u_char *, u_int); 206 extern void isoclns_print(const u_char *, u_int, u_int, const u_char *, 207 const u_char *); 208 extern void krb_print(const u_char *, u_int); 209 extern void nfsreply_print(const u_char *, u_int, const u_char *); 210 extern void nfsreq_print(const u_char *, u_int, const u_char *); 211 extern void ns_print(const u_char *, u_int); 212 extern void ntp_print(const u_char *, u_int); 213 extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 214 extern void ospf_print(const u_char *, u_int, const u_char *); 215 extern void pimv1_print(const u_char *, u_int); 216 extern void cisco_autorp_print(const u_char *, u_int); 217 extern void mobile_print(const u_char *, u_int); 218 extern void pim_print(const u_char *, u_int); 219 extern void pppoe_print(const u_char *, u_int); 220 extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 221 extern void ppp_bsdos_if_print(u_char *, const struct pcap_pkthdr *, 222 const u_char *); 223 extern int vjc_print(register const char *, register u_int, u_short); 224 extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 225 extern void rip_print(const u_char *, u_int); 226 extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 227 extern void lane_if_print(u_char *, const struct pcap_pkthdr *,const u_char *); 228 extern void cip_if_print(u_char *, const struct pcap_pkthdr *,const u_char *); 229 extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *, 230 const u_char *); 231 extern void chdlc_if_print(u_char *, const struct pcap_pkthdr *, 232 const u_char *); 233 extern void snmp_print(const u_char *, u_int); 234 extern void sunrpcrequest_print(const u_char *, u_int, const u_char *); 235 extern void tcp_print(const u_char *, u_int, const u_char *); 236 extern void tftp_print(const u_char *, u_int); 237 extern void udp_print(const u_char *, u_int, const u_char *); 238 extern void wb_print(const void *, u_int); 239 extern int ah_print(register const u_char *, register const u_char *); 240 extern int esp_print(register const u_char *, register const u_char *, int *); 241 extern void isakmp_print(const u_char *, u_int, const u_char *); 242 extern int ipcomp_print(register const u_char *, register const u_char *, int *); 243 extern void rx_print(register const u_char *, int, int, int, u_char *); 244 extern void netbeui_print(const u_char *, const u_char *); 245 extern void ipx_netbios_print(const u_char *, const u_char *); 246 extern void nbt_tcp_print(const u_char *, int); 247 extern void nbt_udp137_print(const u_char *data, int); 248 extern void nbt_udp138_print(const u_char *data, int); 249 extern char *smb_errstr(int, int); 250 extern void print_data(const unsigned char *, int); 251 extern void l2tp_print(const u_char *, u_int); 252 extern void lcp_print(const u_char *, u_int); 253 254 #ifdef INET6 255 extern void ip6_print(const u_char *, int); 256 extern void ip6_opt_print(const u_char *, int); 257 extern int hbhopt_print(const u_char *); 258 extern int dstopt_print(const u_char *); 259 extern int frag6_print(const u_char *, const u_char *); 260 extern void icmp6_print(const u_char *, const u_char *); 261 extern void ripng_print(const u_char *, int); 262 extern int rt6_print(const u_char *, const u_char *); 263 extern void ospf6_print(const u_char *, u_int); 264 extern void dhcp6_print(const u_char *, u_int, u_short, u_short); 265 #endif /*INET6*/ 266 extern u_short in_cksum(const u_short *addr, register int len, u_short csum); 267