2 * Copyright (c) 1988-2002
3 * The Regents of the University of California. All rights reserved.
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
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.
21 * @(#) $Header: /tcpdump/master/tcpdump/interface.h,v 1.178 2002/01/21 11:39:58 mcr Exp $ (LBL)
26 #ifndef tcpdump_interface_h
27 #define tcpdump_interface_h
29 #ifdef HAVE_OS_PROTO_H
32 #include <sys/types.h>
35 #ifndef HAVE___ATTRIBUTE__
36 #define __attribute__(x)
43 #if !defined(HAVE_SNPRINTF)
44 int snprintf(char *, size_t, const char *, ...)
45 __attribute__((format(printf, 3, 4)));
48 #if !defined(HAVE_VSNPRINTF)
49 int vsnprintf(char *, size_t, const char *, va_list)
50 __attribute__((format(printf, 3, 0)));
54 extern size_t strlcat(char *, const char *, size_t);
57 extern size_t strlcpy(char *, const char *, size_t);
61 extern char *strdup(const char *);
66 const char *s; /* string */
69 extern int aflag; /* translate network and broadcast addresses */
70 extern int dflag; /* print filter code */
71 extern int eflag; /* print ethernet header */
72 extern int fflag; /* don't translate "foreign" IP address */
73 extern int nflag; /* leave addresses as numbers */
74 extern int Nflag; /* remove domains from printed host names */
75 extern int qflag; /* quick (shorter) output */
76 extern int Rflag; /* print sequence # field in AH/ESP*/
77 extern int sflag; /* use the libsmi to translate OIDs */
78 extern int Sflag; /* print raw TCP sequence numbers */
79 extern int tflag; /* print packet arrival time */
80 extern int uflag; /* Print undecoded NFS handles */
81 extern int vflag; /* verbose */
82 extern int xflag; /* print packet in hex */
83 extern int Xflag; /* print packet in hex/ascii */
85 extern char *espsecret;
86 extern struct esp_algorithm *espsecret_xform; /* cache of decoded alg. */
87 extern char *espsecret_key;
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 */
99 #define min(a,b) ((a)>(b)?(b):(a))
102 #define max(a,b) ((b)>(a)?(b):(a))
106 * The default snapshot length. This value allows most printers to print
107 * useful information while keeping the amount of unwanted data down.
110 #define DEFAULT_SNAPLEN 68 /* ether + IPv4 + TCP + 14 */
112 #define DEFAULT_SNAPLEN 96 /* ether + IPv6 + TCP + 22 */
116 #define BIG_ENDIAN 4321
117 #define LITTLE_ENDIAN 1234
120 #define ESRC(ep) ((ep)->ether_shost)
121 #define EDST(ep) ((ep)->ether_dhost)
124 #define NTOHL(x) (x) = ntohl(x)
125 #define NTOHS(x) (x) = ntohs(x)
126 #define HTONL(x) (x) = htonl(x)
127 #define HTONS(x) (x) = htons(x)
131 extern char *program_name; /* used to generate self-identifying messages */
133 extern int32_t thiszone; /* seconds offset from gmt to local time */
136 /* global pointers to beginning and end of current packet (during printing) */
137 extern const u_char *packetp;
138 extern const u_char *snapend;
141 * True if "l" bytes of "var" were captured.
143 * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large
144 * that "snapend - (l)" underflows.
146 * The check is for <= rather than < because "l" might be 0.
148 #define TTEST2(var, l) (snapend - (l) <= snapend && \
149 (const u_char *)&(var) <= snapend - (l))
151 /* True if "var" was captured */
152 #define TTEST(var) TTEST2(var, sizeof(var))
154 /* Bail if "l" bytes of "var" were not captured */
155 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
157 /* Bail if "var" was not captured */
158 #define TCHECK(var) TCHECK2(var, sizeof(var))
160 extern void ts_print(const struct timeval *);
161 extern void relts_print(int);
163 extern int fn_print(const u_char *, const u_char *);
164 extern int fn_printn(const u_char *, u_int, const u_char *);
165 extern const char *tok2str(const struct tok *, const char *, int);
166 extern const char *tok2strary_internal(const char **, int, const char *, int);
167 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i)
169 extern const char *dnaddr_string(u_short);
171 extern void info(int);
172 extern int infodelay;
173 extern int infoprint;
175 extern void error(const char *, ...)
176 __attribute__((noreturn, format (printf, 1, 2)));
177 extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2)));
179 extern char *read_infile(char *);
180 extern char *copy_argv(char **);
182 extern void safeputchar(int);
183 extern void safeputs(const char *);
185 extern const char *isonsap_string(const u_char *);
186 extern const char *llcsap_string(u_char);
187 extern const char *protoid_string(const u_char *);
188 extern const char *ipxsap_string(u_short);
189 extern const char *dnname_string(u_short);
190 extern const char *dnnum_string(u_short);
192 /* The printer routines. */
196 extern void ascii_print_with_offset(const u_char *, u_int, u_int);
197 extern void ascii_print(const u_char *, u_int);
198 extern void hex_print_with_offset(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 *, 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 void aarp_print(const u_char *, u_int);
205 extern void arp_print(const u_char *, u_int, u_int);
206 extern void atalk_print(const u_char *, u_int);
207 extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
208 extern void bootp_print(const u_char *, u_int, u_short, u_short);
209 extern void bgp_print(const u_char *, int);
210 extern void beep_print(const u_char *, u_int);
211 extern void cnfp_print(const u_char *, u_int, const u_char *);
212 extern void decnet_print(const u_char *, u_int, u_int);
213 extern void default_print(const u_char *, u_int);
214 extern void default_print_unaligned(const u_char *, u_int);
215 extern void dvmrp_print(const u_char *, u_int);
216 extern void egp_print(const u_char *, u_int, const u_char *);
217 extern void arcnet_if_print(u_char *, const struct pcap_pkthdr *,
219 extern void ether_if_print(u_char *, const struct pcap_pkthdr *,
221 extern void token_if_print(u_char *, const struct pcap_pkthdr *,
223 extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
224 extern void ieee802_11_if_print(u_char *, const struct pcap_pkthdr *,
226 extern void gre_print(const u_char *, u_int);
227 extern void icmp_print(const u_char *, u_int, const u_char *);
228 extern void igmp_print(const u_char *, u_int);
229 extern void igrp_print(const u_char *, u_int, const u_char *);
230 extern void ip_print(const u_char *, u_int);
231 extern void ipN_print(const u_char *, u_int);
232 extern void ipx_print(const u_char *, u_int);
233 extern void isoclns_print(const u_char *, u_int, u_int, const u_char *,
235 extern void krb_print(const u_char *, u_int);
236 extern void llap_print(const u_char *, u_int);
237 extern void ltalk_if_print(u_char *, const struct pcap_pkthdr *,
239 extern void msdp_print(const unsigned char *, u_int);
240 extern void nfsreply_print(const u_char *, u_int, const u_char *);
241 extern void nfsreq_print(const u_char *, u_int, const u_char *);
242 extern void ns_print(const u_char *, u_int);
243 extern void ntp_print(const u_char *, u_int);
244 extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
245 extern void ospf_print(const u_char *, u_int, const u_char *);
246 extern void pimv1_print(const u_char *, u_int);
247 extern void cisco_autorp_print(const u_char *, u_int);
248 extern void mobile_print(const u_char *, u_int);
249 extern void pim_print(const u_char *, u_int);
250 extern void pppoe_print(const u_char *, u_int);
251 extern void ppp_print(register const u_char *, u_int);
252 extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
253 extern void ppp_hdlc_if_print(u_char *, const struct pcap_pkthdr *,
255 extern void ppp_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
257 extern void pppoe_if_print(u_char *, const struct pcap_pkthdr *,
259 extern int vjc_print(register const char *, register u_int, u_short);
260 extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
261 extern void rip_print(const u_char *, u_int);
262 extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
263 extern void lane_if_print(u_char *, const struct pcap_pkthdr *,const u_char *);
264 extern void cip_if_print(u_char *, const struct pcap_pkthdr *,const u_char *);
265 extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
267 extern void chdlc_if_print(u_char *, const struct pcap_pkthdr *,
269 extern void chdlc_print(register const u_char *, u_int, u_int);
270 extern void sll_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
271 extern void snmp_print(const u_char *, u_int);
272 extern void sunrpcrequest_print(const u_char *, u_int, const u_char *);
273 extern void tcp_print(const u_char *, u_int, const u_char *, int);
274 extern void tftp_print(const u_char *, u_int);
275 extern void timed_print(const u_char *, u_int);
276 extern void udp_print(const u_char *, u_int, const u_char *, int);
277 extern void wb_print(const void *, u_int);
278 extern int ah_print(register const u_char *, register const u_char *);
279 extern int esp_print(register const u_char *, register const u_char *, int *, int *);
280 extern void isakmp_print(const u_char *, u_int, const u_char *);
281 extern int ipcomp_print(register const u_char *, register const u_char *, int *);
282 extern void rx_print(register const u_char *, int, int, int, u_char *);
283 extern void netbeui_print(u_short, const u_char *, int);
284 extern void ipx_netbios_print(const u_char *, u_int);
285 extern void nbt_tcp_print(const u_char *, int);
286 extern void nbt_udp137_print(const u_char *, int);
287 extern void nbt_udp138_print(const u_char *, int);
288 extern char *smb_errstr(int, int);
289 extern void print_data(const unsigned char *, int);
290 extern void l2tp_print(const u_char *, u_int);
291 extern void lcp_print(const u_char *, u_int);
292 extern void vrrp_print(const u_char *, u_int, int);
293 extern void cdp_print(const u_char *, u_int, u_int, const u_char *,
295 extern void stp_print(const u_char *, u_int);
296 extern void radius_print(const u_char *, u_int);
297 extern void lwres_print(const u_char *, u_int);
298 extern void pptp_print(const u_char *, u_int);
299 extern void sctp_print(const u_char *, const u_char *, u_int);
300 extern void mpls_print(const u_char *, u_int);
301 extern void zephyr_print(const u_char *, int);
302 extern void hsrp_print(const u_char *, u_int);
305 extern void ip6_print(const u_char *, u_int);
306 extern void ip6_opt_print(const u_char *, int);
307 extern int hbhopt_print(const u_char *);
308 extern int dstopt_print(const u_char *);
309 extern int frag6_print(const u_char *, const u_char *);
310 extern void icmp6_print(const u_char *, const u_char *);
311 extern void ripng_print(const u_char *, unsigned int);
312 extern int rt6_print(const u_char *, const u_char *);
313 extern void ospf6_print(const u_char *, u_int);
314 extern void dhcp6_print(const u_char *, u_int, u_int16_t, u_int16_t);
316 extern u_short in_cksum(const u_short *, register u_int, int);
318 #ifndef HAVE_BPF_DUMP
321 extern void bpf_dump(struct bpf_program *, int);