1 /* 2 * Copyright (c) 1988-2002 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 1.217.2.5 2004/03/17 19:47:48 guy Exp $ (LBL) 22 * 23 * $FreeBSD$ 24 */ 25 26 #ifndef tcpdump_interface_h 27 #define tcpdump_interface_h 28 29 #ifdef HAVE_OS_PROTO_H 30 #include "os-proto.h" 31 #endif 32 33 #ifndef HAVE___ATTRIBUTE__ 34 #define __attribute__(x) 35 #endif 36 37 /* snprintf et al */ 38 39 #include <stdarg.h> 40 41 #if !defined(HAVE_SNPRINTF) 42 int snprintf(char *, size_t, const char *, ...) 43 __attribute__((format(printf, 3, 4))); 44 #endif 45 46 #if !defined(HAVE_VSNPRINTF) 47 int vsnprintf(char *, size_t, const char *, va_list) 48 __attribute__((format(printf, 3, 0))); 49 #endif 50 51 #ifndef HAVE_STRLCAT 52 extern size_t strlcat(char *, const char *, size_t); 53 #endif 54 #ifndef HAVE_STRLCPY 55 extern size_t strlcpy(char *, const char *, size_t); 56 #endif 57 58 #ifndef HAVE_STRDUP 59 extern char *strdup(const char *); 60 #endif 61 62 #ifndef HAVE_STRSEP 63 extern char *strsep(char **, const char *); 64 #endif 65 66 struct tok { 67 int v; /* value */ 68 const char *s; /* string */ 69 }; 70 71 extern int aflag; /* translate network and broadcast addresses */ 72 extern int dflag; /* print filter code */ 73 extern int eflag; /* print ethernet header */ 74 extern int fflag; /* don't translate "foreign" IP address */ 75 extern int nflag; /* leave addresses as numbers */ 76 extern int Nflag; /* remove domains from printed host names */ 77 extern int qflag; /* quick (shorter) output */ 78 extern int Rflag; /* print sequence # field in AH/ESP*/ 79 extern int sflag; /* use the libsmi to translate OIDs */ 80 extern int Sflag; /* print raw TCP sequence numbers */ 81 extern int tflag; /* print packet arrival time */ 82 extern int uflag; /* Print undecoded NFS handles */ 83 extern int vflag; /* verbose */ 84 extern int xflag; /* print packet in hex */ 85 extern int Xflag; /* print packet in hex/ascii */ 86 extern int Aflag; /* print packet only in ascii observing TAB, LF, CR and SPACE as graphical chars */ 87 extern char *espsecret; 88 89 extern int packettype; /* as specified by -T */ 90 #define PT_VAT 1 /* Visual Audio Tool */ 91 #define PT_WB 2 /* distributed White Board */ 92 #define PT_RPC 3 /* Remote Procedure Call */ 93 #define PT_RTP 4 /* Real-Time Applications protocol */ 94 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 95 #define PT_SNMP 6 /* Simple Network Management Protocol */ 96 #define PT_CNFP 7 /* Cisco NetFlow protocol */ 97 #define PT_TFTP 8 /* trivial file transfer protocol */ 98 #define PT_AODV 9 /* Ad-hoc On-demand Distance Vector Protocol */ 99 100 #ifndef min 101 #define min(a,b) ((a)>(b)?(b):(a)) 102 #endif 103 #ifndef max 104 #define max(a,b) ((b)>(a)?(b):(a)) 105 #endif 106 107 /* 108 * The default snapshot length. This value allows most printers to print 109 * useful information while keeping the amount of unwanted data down. 110 */ 111 #ifndef INET6 112 #define DEFAULT_SNAPLEN 68 /* ether + IPv4 + TCP + 14 */ 113 #else 114 #define DEFAULT_SNAPLEN 96 /* ether + IPv6 + TCP + 22 */ 115 #endif 116 117 #ifndef BIG_ENDIAN 118 #define BIG_ENDIAN 4321 119 #define LITTLE_ENDIAN 1234 120 #endif 121 122 #define ESRC(ep) ((ep)->ether_shost) 123 #define EDST(ep) ((ep)->ether_dhost) 124 125 #ifndef NTOHL 126 #define NTOHL(x) (x) = ntohl(x) 127 #define NTOHS(x) (x) = ntohs(x) 128 #define HTONL(x) (x) = htonl(x) 129 #define HTONS(x) (x) = htons(x) 130 #endif 131 #endif 132 133 extern char *program_name; /* used to generate self-identifying messages */ 134 135 extern int32_t thiszone; /* seconds offset from gmt to local time */ 136 137 extern int snaplen; 138 /* global pointer to end of current packet (during printing) */ 139 extern const u_char *snapend; 140 141 /* 142 * True if "l" bytes of "var" were captured. 143 * 144 * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large 145 * that "snapend - (l)" underflows. 146 * 147 * The check is for <= rather than < because "l" might be 0. 148 */ 149 #define TTEST2(var, l) (snapend - (l) <= snapend && \ 150 (const u_char *)&(var) <= snapend - (l)) 151 152 /* True if "var" was captured */ 153 #define TTEST(var) TTEST2(var, sizeof(var)) 154 155 /* Bail if "l" bytes of "var" were not captured */ 156 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc 157 158 /* Bail if "var" was not captured */ 159 #define TCHECK(var) TCHECK2(var, sizeof(var)) 160 161 extern void ts_print(const struct timeval *); 162 extern void relts_print(int); 163 164 extern int fn_print(const u_char *, const u_char *); 165 extern int fn_printn(const u_char *, u_int, const u_char *); 166 extern const char *tok2str(const struct tok *, const char *, int); 167 extern int mask2plen(u_int32_t); 168 extern char *bittok2str(const struct tok *, const char *, int); 169 extern const char *tok2strary_internal(const char **, int, const char *, int); 170 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i) 171 172 extern const char *dnaddr_string(u_short); 173 174 extern void error(const char *, ...) 175 __attribute__((noreturn, format (printf, 1, 2))); 176 extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2))); 177 178 extern char *read_infile(char *); 179 extern char *copy_argv(char **); 180 181 extern void safeputchar(int); 182 extern void safeputs(const char *); 183 184 extern const char *isonsap_string(const u_char *); 185 extern const char *llcsap_string(u_char); 186 extern const char *protoid_string(const u_char *); 187 extern const char *ipxsap_string(u_short); 188 extern const char *dnname_string(u_short); 189 extern const char *dnnum_string(u_short); 190 191 /* The printer routines. */ 192 193 #include <pcap.h> 194 195 extern int print_unknown_data(const u_char *, const char *,int); 196 extern void ascii_print_with_offset(const u_char *, const u_char *, u_int, u_int); 197 extern void ascii_print(const u_char *, const u_char *, u_int); 198 extern void hex_print_with_offset(const u_char *, const u_char *, u_int, u_int); 199 extern void telnet_print(const u_char *, u_int); 200 extern void hex_print(const u_char *, const u_char *, u_int); 201 extern int ether_encap_print(u_short, const u_char *, u_int, u_int, u_short *); 202 extern int llc_print(const u_char *, u_int, u_int, const u_char *, 203 const u_char *, u_short *); 204 extern int snap_print(const u_char *, u_int, u_int, u_short *, u_int32_t, 205 u_short, u_int); 206 extern void aarp_print(const u_char *, u_int); 207 extern void aodv_print(const u_char *, u_int, int); 208 extern void arp_print(const u_char *, u_int, u_int); 209 extern void atalk_print(const u_char *, u_int); 210 extern void atm_print(u_int, u_int, u_int, const u_char *, u_int, u_int); 211 extern u_int atm_if_print(const struct pcap_pkthdr *, const u_char *); 212 extern u_int sunatm_if_print(const struct pcap_pkthdr *, const u_char *); 213 extern void bootp_print(const u_char *, u_int); 214 extern void bgp_print(const u_char *, int); 215 extern void beep_print(const u_char *, u_int); 216 extern void cnfp_print(const u_char *, const u_char *); 217 extern void decnet_print(const u_char *, u_int, u_int); 218 extern void default_print(const u_char *, u_int); 219 extern void default_print_unaligned(const u_char *, u_int); 220 extern void dvmrp_print(const u_char *, u_int); 221 extern void egp_print(const u_char *); 222 extern u_int enc_if_print(const struct pcap_pkthdr *, const u_char *); 223 extern u_int pflog_if_print(const struct pcap_pkthdr *, const u_char *); 224 extern u_int arcnet_if_print(const struct pcap_pkthdr *, const u_char *); 225 extern u_int arcnet_linux_if_print(const struct pcap_pkthdr *, const u_char *); 226 extern void ether_print(const u_char *, u_int, u_int); 227 extern u_int ether_if_print(const struct pcap_pkthdr *, const u_char *); 228 extern u_int token_print(const u_char *, u_int, u_int); 229 extern u_int token_if_print(const struct pcap_pkthdr *, const u_char *); 230 extern void fddi_print(const u_char *, u_int, u_int); 231 extern u_int fddi_if_print(const struct pcap_pkthdr *, const u_char *); 232 extern u_int fr_if_print(const struct pcap_pkthdr *, const u_char *); 233 extern u_int ieee802_11_if_print(const struct pcap_pkthdr *, const u_char *); 234 extern u_int ieee802_11_radio_if_print(const struct pcap_pkthdr *, 235 const u_char *); 236 extern u_int ap1394_if_print(const struct pcap_pkthdr *, const u_char *); 237 extern void gre_print(const u_char *, u_int); 238 extern void icmp_print(const u_char *, u_int, const u_char *, int); 239 extern void igmp_print(const u_char *, u_int); 240 extern void igrp_print(const u_char *, u_int, const u_char *); 241 extern void ip_print(const u_char *, u_int); 242 extern void ipN_print(const u_char *, u_int); 243 extern u_int ipfc_if_print(const struct pcap_pkthdr *, const u_char *); 244 extern void ipx_print(const u_char *, u_int); 245 extern void isoclns_print(const u_char *, u_int, u_int); 246 extern void krb_print(const u_char *); 247 extern u_int llap_print(const u_char *, u_int); 248 extern u_int ltalk_if_print(const struct pcap_pkthdr *, const u_char *); 249 extern void msdp_print(const unsigned char *, u_int); 250 extern void nfsreply_print(const u_char *, u_int, const u_char *); 251 extern void nfsreq_print(const u_char *, u_int, const u_char *); 252 extern void ns_print(const u_char *, u_int, int); 253 extern void ntp_print(const u_char *, u_int); 254 extern u_int null_if_print(const struct pcap_pkthdr *, const u_char *); 255 extern void ospf_print(const u_char *, u_int, const u_char *); 256 extern void pimv1_print(const u_char *, u_int); 257 extern void cisco_autorp_print(const u_char *, u_int); 258 extern void rsvp_print(const u_char *, u_int); 259 extern void ldp_print(const u_char *, u_int); 260 extern void mobile_print(const u_char *, u_int); 261 extern void pim_print(const u_char *, u_int); 262 extern u_int pppoe_print(const u_char *, u_int); 263 extern u_int ppp_print(register const u_char *, u_int); 264 extern u_int ppp_if_print(const struct pcap_pkthdr *, const u_char *); 265 extern u_int ppp_hdlc_if_print(const struct pcap_pkthdr *, const u_char *); 266 extern u_int ppp_bsdos_if_print(const struct pcap_pkthdr *, const u_char *); 267 extern u_int pppoe_if_print(const struct pcap_pkthdr *, const u_char *); 268 extern u_int prism_if_print(const struct pcap_pkthdr *, const u_char *); 269 extern int vjc_print(register const char *, u_short); 270 extern u_int raw_if_print(const struct pcap_pkthdr *, const u_char *); 271 extern void rip_print(const u_char *, u_int); 272 extern u_int sl_if_print(const struct pcap_pkthdr *, const u_char *); 273 extern void lane_print(const u_char *, u_int, u_int); 274 extern u_int lane_if_print(const struct pcap_pkthdr *, const u_char *); 275 extern u_int cip_if_print(const struct pcap_pkthdr *, const u_char *); 276 extern u_int sl_bsdos_if_print(const struct pcap_pkthdr *, const u_char *); 277 extern u_int chdlc_if_print(const struct pcap_pkthdr *, const u_char *); 278 extern u_int sll_if_print(const struct pcap_pkthdr *, const u_char *); 279 extern void snmp_print(const u_char *, u_int); 280 extern void sunrpcrequest_print(const u_char *, u_int, const u_char *); 281 extern void tcp_print(const u_char *, u_int, const u_char *, int); 282 extern void tftp_print(const u_char *, u_int); 283 extern void timed_print(const u_char *); 284 extern void udp_print(const u_char *, u_int, const u_char *, int); 285 extern void wb_print(const void *, u_int); 286 extern int ah_print(register const u_char *); 287 extern int esp_print(register const u_char *, register const u_char *, int *, int *); 288 extern void isakmp_print(const u_char *, u_int, const u_char *); 289 extern int ipcomp_print(register const u_char *, int *); 290 extern void rx_print(register const u_char *, int, int, int, u_char *); 291 extern void netbeui_print(u_short, const u_char *, int); 292 extern void ipx_netbios_print(const u_char *, u_int); 293 extern void nbt_tcp_print(const u_char *, int); 294 extern void nbt_udp137_print(const u_char *, int); 295 extern void nbt_udp138_print(const u_char *, int); 296 extern char *smb_errstr(int, int); 297 extern void print_data(const unsigned char *, int); 298 extern void l2tp_print(const u_char *, u_int); 299 extern void vrrp_print(const u_char *, u_int, int); 300 extern void cdp_print(const u_char *, u_int, u_int); 301 extern void stp_print(const u_char *, u_int); 302 extern void radius_print(const u_char *, u_int); 303 extern void lwres_print(const u_char *, u_int); 304 extern void pptp_print(const u_char *); 305 extern void sctp_print(const u_char *, const u_char *, u_int); 306 extern void mpls_print(const u_char *, u_int); 307 extern void mpls_lsp_ping_print(const u_char *, u_int); 308 extern void zephyr_print(const u_char *, int); 309 extern void hsrp_print(const u_char *, u_int); 310 extern void bfd_print(const u_char *, u_int, u_int); 311 312 #ifdef INET6 313 extern void ip6_print(const u_char *, u_int); 314 extern void ip6_opt_print(const u_char *, int); 315 extern int hbhopt_print(const u_char *); 316 extern int dstopt_print(const u_char *); 317 extern int frag6_print(const u_char *, const u_char *); 318 extern int mobility_print(const u_char *, const u_char *); 319 extern void icmp6_print(const u_char *, u_int, const u_char *, int); 320 extern void ripng_print(const u_char *, unsigned int); 321 extern int rt6_print(const u_char *, const u_char *); 322 extern void ospf6_print(const u_char *, u_int); 323 extern void dhcp6_print(const u_char *, u_int); 324 #endif /*INET6*/ 325 extern u_short in_cksum(const u_short *, register u_int, int); 326 extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t); 327 328 #ifndef HAVE_BPF_DUMP 329 struct bpf_program; 330 331 extern void bpf_dump(struct bpf_program *, int); 332 #endif 333