1 /* $OpenBSD: interface.h,v 1.46 2004/06/20 17:51:55 avsm 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: /home/cvs/src/usr.sbin/tcpdump/interface.h,v 1.46 2004/06/20 17:51:55 avsm 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 34 struct tok { 35 int v; /* value */ 36 char *s; /* string */ 37 }; 38 39 extern int aflag; /* translate network and broadcast addresses */ 40 extern int dflag; /* print filter code */ 41 extern int eflag; /* print ethernet header */ 42 extern int fflag; /* don't translate "foreign" IP address */ 43 extern int nflag; /* leave addresses as numbers */ 44 extern int Nflag; /* remove domains from printed host names */ 45 extern int oflag; /* OS fingerprint */ 46 extern int qflag; /* quick (shorter) output */ 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 int packettype; /* as specified by -T */ 54 #define PT_VAT 1 /* Visual Audio Tool */ 55 #define PT_WB 2 /* distributed White Board */ 56 #define PT_RPC 3 /* Remote Procedure Call */ 57 #define PT_RTP 4 /* Real-Time Applications protocol */ 58 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 59 #define PT_CNFP 6 /* Cisco NetFlow protocol */ 60 #define PT_VRRP 7 /* Virtual Router Redundancy protocol */ 61 62 #ifndef min 63 #define min(a,b) ((a)>(b)?(b):(a)) 64 #endif 65 #ifndef max 66 #define max(a,b) ((b)>(a)?(b):(a)) 67 #endif 68 69 #ifndef INET6 70 /* 71 * The default snapshot length. This value allows most printers to print 72 * useful information while keeping the amount of unwanted data down. 73 * In particular, it allows for an ethernet header, tcp/ip header, and 74 * 14 bytes of data (assuming no ip options). 75 */ 76 #define DEFAULT_SNAPLEN 68 77 #else 78 #define DEFAULT_SNAPLEN 96 79 #endif /* INET6 */ 80 #define SACK_SNAPLEN 94 81 82 #ifndef BIG_ENDIAN 83 #define BIG_ENDIAN 4321 84 #define LITTLE_ENDIAN 1234 85 #endif 86 87 #ifdef ETHER_HEADER_HAS_EA 88 #define ESRC(ep) ((ep)->ether_shost.ether_addr_octet) 89 #define EDST(ep) ((ep)->ether_dhost.ether_addr_octet) 90 #else 91 #define ESRC(ep) ((ep)->ether_shost) 92 #define EDST(ep) ((ep)->ether_dhost) 93 #endif 94 95 #ifdef ETHER_ARP_HAS_X 96 #define SHA(ap) ((ap)->arp_xsha) 97 #define THA(ap) ((ap)->arp_xtha) 98 #define SPA(ap) ((ap)->arp_xspa) 99 #define TPA(ap) ((ap)->arp_xtpa) 100 #else 101 #ifdef ETHER_ARP_HAS_EA 102 #define SHA(ap) ((ap)->arp_sha.ether_addr_octet) 103 #define THA(ap) ((ap)->arp_tha.ether_addr_octet) 104 #else 105 #define SHA(ap) ((ap)->arp_sha) 106 #define THA(ap) ((ap)->arp_tha) 107 #endif 108 #define SPA(ap) ((ap)->arp_spa) 109 #define TPA(ap) ((ap)->arp_tpa) 110 #endif 111 112 #ifndef NTOHL 113 #define NTOHL(x) (x) = ntohl(x) 114 #define NTOHS(x) (x) = ntohs(x) 115 #define HTONL(x) (x) = htonl(x) 116 #define HTONS(x) (x) = htons(x) 117 #endif 118 #endif 119 120 extern char *program_name; /* used to generate self-identifying messages */ 121 122 extern int32_t thiszone; /* seconds offset from gmt to local time */ 123 124 extern int snaplen; 125 /* global pointers to beginning and end of current packet (during printing) */ 126 extern const u_char *packetp; 127 extern const u_char *snapend; 128 129 /* 130 * True if "l" bytes of "var" were captured. 131 * 132 * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large 133 * that "snapend - (l)" underflows. 134 * 135 * The check is for <= rather than < because "l" might be 0. 136 */ 137 #define TTEST2(var, l) (snapend - (l) <= snapend && \ 138 (const u_char *)&(var) <= snapend - (l)) 139 140 /* True if "var" was captured */ 141 #define TTEST(var) TTEST2(var, sizeof(var)) 142 143 /* Bail if "l" bytes of "var" were not captured */ 144 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc 145 146 /* Bail if "var" was not captured */ 147 #define TCHECK(var) TCHECK2(var, sizeof(var)) 148 149 struct timeval; 150 struct bpf_timeval; 151 152 extern void ts_print(const struct bpf_timeval *); 153 154 extern int fn_print(const u_char *, const u_char *); 155 extern int fn_printn(const u_char *, u_int, const u_char *); 156 extern void relts_print(int); 157 extern const char *tok2str(const struct tok *, const char *, int); 158 extern char *dnaddr_string(u_short); 159 extern void safeputs(const char *); 160 extern void safeputchar(int); 161 162 extern void wrapup(int); 163 164 extern __dead void error(const char *, ...) 165 __attribute__((__format__ (printf, 1, 2))); 166 extern void warning(const char *, ...) 167 __attribute__ ((__format__ (printf, 1, 2))); 168 169 extern char *read_infile(char *); 170 extern char *copy_argv(char * const *); 171 172 extern char *isonsap_string(const u_char *); 173 extern char *llcsap_string(u_char); 174 extern char *protoid_string(const u_char *); 175 extern char *dnname_string(u_short); 176 extern char *dnnum_string(u_short); 177 178 /* The printer routines. */ 179 180 struct pcap_pkthdr; 181 182 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 int pppoe_if_print(u_short, const u_char *, u_int, u_int); 186 extern void aarp_print(const u_char *, u_int); 187 extern void arp_print(const u_char *, u_int, u_int); 188 extern void atalk_print(const u_char *, u_int); 189 extern void atalk_print_llap(const u_char *, u_int); 190 extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 191 extern void bootp_print(const u_char *, u_int, u_short, u_short); 192 extern void bgp_print(const u_char *, int); 193 extern void decnet_print(const u_char *, u_int, u_int); 194 extern void default_print(const u_char *, u_int); 195 extern void default_print_unaligned(const u_char *, u_int); 196 extern void dvmrp_print(const u_char *, u_int); 197 extern void egp_print(const u_char *, u_int, const u_char *); 198 extern void enc_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 199 extern void pflog_if_print(u_char *, const struct pcap_pkthdr *, 200 const u_char *); 201 extern void pflog_old_if_print(u_char *, const struct pcap_pkthdr *, 202 const u_char *); 203 extern void pfsync_if_print(u_char *, const struct pcap_pkthdr *, 204 const u_char *); 205 extern void pfsync_ip_print(const u_char *, u_int, const u_char *); 206 extern void ether_if_print(u_char *, const struct pcap_pkthdr *, 207 const u_char *); 208 extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 209 extern void ppp_ether_if_print(u_char *, const struct pcap_pkthdr *, 210 const u_char *); 211 extern void gre_print(const u_char *, u_int); 212 extern void icmp_print(const u_char *, const u_char *); 213 extern void igrp_print(const u_char *, u_int, const u_char *); 214 extern void ip_print(const u_char *, u_int); 215 extern void ipx_print(const u_char *, u_int); 216 extern void isoclns_print(const u_char *, u_int, u_int, const u_char *, 217 const u_char *); 218 extern void krb_print(const u_char *, u_int); 219 extern void netbeui_print(u_short, const u_char *, const u_char *); 220 extern void ipx_netbios_print(const u_char *, const u_char *); 221 extern void nbt_tcp_print(const u_char *, int); 222 extern void nbt_udp137_print(const u_char *data, int); 223 extern void nbt_udp138_print(const u_char *data, int); 224 extern char *smb_errstr(int, int); 225 extern void print_data(const unsigned char *, int); 226 extern void l2tp_print(const u_char *dat, u_int length); 227 extern void vrrp_print(const u_char *bp, u_int len, int ttl); 228 extern void carp_print(const u_char *bp, u_int len, int ttl); 229 extern void hsrp_print(const u_char *, u_int); 230 extern void nfsreply_print(const u_char *, u_int, const u_char *); 231 extern void nfsreq_print(const u_char *, u_int, const u_char *); 232 extern void ns_print(const u_char *, u_int, int); 233 extern void ntp_print(const u_char *, u_int); 234 extern void loop_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 235 extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 236 extern void ospf_print(const u_char *, u_int, const u_char *); 237 extern void mobile_print(const u_char *, u_int); 238 extern void pim_print(const u_char *, u_int); 239 extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 240 extern void ppp_hdlc_print(const u_char *, int); 241 extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 242 extern void rip_print(const u_char *, u_int); 243 extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); 244 extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *, 245 const u_char *); 246 extern void snmp_print(const u_char *, u_int); 247 extern void sunrpcrequest_print(const u_char *, u_int, const u_char *); 248 extern void cnfp_print(const u_char *, u_int, const u_char *); 249 extern void tcp_print(const u_char *, u_int, const u_char *); 250 extern void tftp_print(const u_char *, u_int); 251 extern void timed_print(const u_char *, u_int); 252 extern void udp_print(const u_char *, u_int, const u_char *); 253 extern void wb_print(const void *, u_int); 254 extern void ike_print(const u_char *, u_int); 255 extern void udpencap_print(const u_char *, u_int, const u_char *); 256 extern void ah_print(const u_char *, u_int, const u_char *); 257 extern void esp_print(const u_char *, u_int, const u_char *); 258 extern void cdp_print(const u_char *, u_int, u_int, const u_char *, 259 const u_char *); 260 extern void stp_print(const u_char *, u_int); 261 extern void radius_print(const u_char *, u_int); 262 extern void lwres_print(const u_char *, u_int); 263 extern void ether_print(const u_char *, u_int); 264 extern void etherip_print(const u_char *, u_int, const u_char *); 265 extern void ipcomp_print(const u_char *, u_int, const u_char *); 266 267 #ifdef INET6 268 extern void ip6_print(const u_char *, int); 269 extern void ip6_opt_print(const u_char *, int); 270 extern int hbhopt_print(const u_char *); 271 extern int dstopt_print(const u_char *); 272 extern int frag6_print(const u_char *, const u_char *); 273 extern void icmp6_print(const u_char *, const u_char *); 274 extern void ripng_print(const u_char *, int); 275 extern int rt6_print(const u_char *, const u_char *); 276 extern void ospf6_print(const u_char *, u_int); 277 extern void dhcp6_print(const u_char *, u_int, u_short, u_short); 278 #endif /*INET6*/ 279 280 extern u_short in_cksum(const u_short *addr, register int len, u_short csum); 281