xref: /freebsd/contrib/tcpdump/interface.h (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
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  * $FreeBSD$
22  * @(#) $Header: /tcpdump/master/tcpdump/interface.h,v 1.280.2.4 2008-04-04 19:42:52 guy Exp $ (LBL)
23  */
24 
25 #ifndef tcpdump_interface_h
26 #define tcpdump_interface_h
27 
28 #ifdef HAVE_OS_PROTO_H
29 #include "os-proto.h"
30 #endif
31 
32 #ifndef HAVE___ATTRIBUTE__
33 #define __attribute__(x)
34 #endif
35 
36 /* snprintf et al */
37 
38 #include <stdarg.h>
39 
40 #if HAVE_STDINT_H
41 #include <stdint.h>
42 #endif
43 
44 #if !defined(HAVE_SNPRINTF)
45 int snprintf(char *, size_t, const char *, ...)
46      __attribute__((format(printf, 3, 4)));
47 #endif
48 
49 #if !defined(HAVE_VSNPRINTF)
50 int vsnprintf(char *, size_t, const char *, va_list)
51      __attribute__((format(printf, 3, 0)));
52 #endif
53 
54 #ifndef HAVE_STRLCAT
55 extern size_t strlcat(char *, const char *, size_t);
56 #endif
57 #ifndef HAVE_STRLCPY
58 extern size_t strlcpy(char *, const char *, size_t);
59 #endif
60 
61 #ifndef HAVE_STRDUP
62 extern char *strdup(const char *);
63 #endif
64 
65 #ifndef HAVE_STRSEP
66 extern char *strsep(char **, const char *);
67 #endif
68 
69 #define PT_VAT		1	/* Visual Audio Tool */
70 #define PT_WB		2	/* distributed White Board */
71 #define PT_RPC		3	/* Remote Procedure Call */
72 #define PT_RTP		4	/* Real-Time Applications protocol */
73 #define PT_RTCP		5	/* Real-Time Applications control protocol */
74 #define PT_SNMP		6	/* Simple Network Management Protocol */
75 #define PT_CNFP		7	/* Cisco NetFlow protocol */
76 #define PT_TFTP		8	/* trivial file transfer protocol */
77 #define PT_AODV		9	/* Ad-hoc On-demand Distance Vector Protocol */
78 
79 #ifndef min
80 #define min(a,b) ((a)>(b)?(b):(a))
81 #endif
82 #ifndef max
83 #define max(a,b) ((b)>(a)?(b):(a))
84 #endif
85 
86 /*
87  * The default snapshot length.  This value allows most printers to print
88  * useful information while keeping the amount of unwanted data down.
89  */
90 #ifndef INET6
91 #define DEFAULT_SNAPLEN 68	/* ether + IPv4 + TCP + 14 */
92 #else
93 #define DEFAULT_SNAPLEN 96	/* ether + IPv6 + TCP + 22 */
94 #endif
95 
96 #ifndef BIG_ENDIAN
97 #define BIG_ENDIAN 4321
98 #define LITTLE_ENDIAN 1234
99 #endif
100 
101 #define ESRC(ep) ((ep)->ether_shost)
102 #define EDST(ep) ((ep)->ether_dhost)
103 
104 #ifndef NTOHL
105 #define NTOHL(x)	(x) = ntohl(x)
106 #define NTOHS(x)	(x) = ntohs(x)
107 #define HTONL(x)	(x) = htonl(x)
108 #define HTONS(x)	(x) = htons(x)
109 #endif
110 #endif
111 
112 #ifndef MIN
113 #define MIN(a,b) ((a)<(b)?(a):(b))
114 #endif
115 
116 extern char *program_name;	/* used to generate self-identifying messages */
117 
118 extern int32_t thiszone;	/* seconds offset from gmt to local time */
119 
120 /*
121  * True if  "l" bytes of "var" were captured.
122  *
123  * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large
124  * that "snapend - (l)" underflows.
125  *
126  * The check is for <= rather than < because "l" might be 0.
127  */
128 #define TTEST2(var, l) (snapend - (l) <= snapend && \
129 			(const u_char *)&(var) <= snapend - (l))
130 
131 /* True if "var" was captured */
132 #define TTEST(var) TTEST2(var, sizeof(var))
133 
134 /* Bail if "l" bytes of "var" were not captured */
135 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
136 
137 /* Bail if "var" was not captured */
138 #define TCHECK(var) TCHECK2(var, sizeof(var))
139 
140 extern void ts_print(const struct timeval *);
141 extern void relts_print(int);
142 
143 extern int fn_print(const u_char *, const u_char *);
144 extern int fn_printn(const u_char *, u_int, const u_char *);
145 extern int fn_printzp(const u_char *, u_int, const u_char *);
146 extern int mask2plen(u_int32_t);
147 extern const char *tok2strary_internal(const char **, int, const char *, int);
148 #define	tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i)
149 
150 extern const char *dnaddr_string(u_short);
151 
152 extern void error(const char *, ...)
153     __attribute__((noreturn, format (printf, 1, 2)));
154 extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2)));
155 
156 extern char *read_infile(char *);
157 extern char *copy_argv(char **);
158 
159 extern void safeputchar(int);
160 extern void safeputs(const char *, int);
161 
162 extern const char *isonsap_string(const u_char *, register u_int);
163 extern const char *protoid_string(const u_char *);
164 extern const char *ipxsap_string(u_short);
165 extern const char *dnname_string(u_short);
166 extern const char *dnnum_string(u_short);
167 
168 /* checksum routines */
169 extern void init_checksum(void);
170 extern u_int16_t verify_crc10_cksum(u_int16_t, const u_char *, int);
171 extern u_int16_t create_osi_cksum(const u_int8_t *, int, int);
172 
173 /* The printer routines. */
174 
175 #include <pcap.h>
176 
177 extern int print_unknown_data(const u_char *, const char *,int);
178 extern void ascii_print(const u_char *, u_int);
179 extern void hex_and_ascii_print_with_offset(const char *, const u_char *,
180 	u_int, u_int);
181 extern void hex_and_ascii_print(const char *, const u_char *, u_int);
182 extern void hex_print_with_offset(const char *, const u_char *, u_int, u_int);
183 extern void hex_print(const char *, const u_char *, u_int);
184 extern void telnet_print(const u_char *, u_int);
185 extern int ether_encap_print(u_short, const u_char *, u_int, u_int, u_short *);
186 extern int llc_print(const u_char *, u_int, u_int, const u_char *,
187 	const u_char *, u_short *);
188 extern int snap_print(const u_char *, u_int, u_int, u_short *, u_int);
189 extern void aarp_print(const u_char *, u_int);
190 extern void aodv_print(const u_char *, u_int, int);
191 extern void atalk_print(const u_char *, u_int);
192 extern void atm_print(u_int, u_int, u_int, const u_char *, u_int, u_int);
193 extern u_int atm_if_print(const struct pcap_pkthdr *, const u_char *);
194 extern u_int sunatm_if_print(const struct pcap_pkthdr *, const u_char *);
195 extern int oam_print(const u_char *, u_int, u_int);
196 extern void bootp_print(const u_char *, u_int);
197 extern void bgp_print(const u_char *, int);
198 extern void beep_print(const u_char *, u_int);
199 extern void cnfp_print(const u_char *, const u_char *);
200 extern void decnet_print(const u_char *, u_int, u_int);
201 extern void default_print(const u_char *, u_int);
202 extern void dvmrp_print(const u_char *, u_int);
203 extern void egp_print(const u_char *, u_int);
204 extern u_int enc_if_print(const struct pcap_pkthdr *, const u_char *);
205 extern u_int pflog_if_print(const struct pcap_pkthdr *, const u_char *);
206 extern u_int arcnet_if_print(const struct pcap_pkthdr *, const u_char *);
207 extern u_int arcnet_linux_if_print(const struct pcap_pkthdr *, const u_char *);
208 extern void ether_print(const u_char *, u_int, u_int);
209 extern u_int ether_if_print(const struct pcap_pkthdr *, const u_char *);
210 extern u_int token_print(const u_char *, u_int, u_int);
211 extern u_int token_if_print(const struct pcap_pkthdr *, const u_char *);
212 extern void fddi_print(const u_char *, u_int, u_int);
213 extern u_int fddi_if_print(const struct pcap_pkthdr *, const u_char *);
214 extern u_int fr_if_print(const struct pcap_pkthdr *, const u_char *);
215 extern u_int mfr_if_print(const struct pcap_pkthdr *, const u_char *);
216 extern u_int fr_print(register const u_char *, u_int);
217 extern u_int mfr_print(register const u_char *, u_int);
218 extern char *q922_string(const u_char *);
219 extern u_int ieee802_11_if_print(const struct pcap_pkthdr *, const u_char *);
220 extern u_int ieee802_11_radio_if_print(const struct pcap_pkthdr *,
221 	const u_char *);
222 extern u_int ap1394_if_print(const struct pcap_pkthdr *, const u_char *);
223 extern u_int ieee802_11_radio_avs_if_print(const struct pcap_pkthdr *,
224 	const u_char *);
225 extern void gre_print(const u_char *, u_int);
226 extern void icmp_print(const u_char *, u_int, const u_char *, int);
227 extern void igmp_print(const u_char *, u_int);
228 extern void igrp_print(const u_char *, u_int, const u_char *);
229 extern void ipN_print(const u_char *, u_int);
230 extern u_int ipfc_if_print(const struct pcap_pkthdr *, const u_char *);
231 extern void ipx_print(const u_char *, u_int);
232 extern void isoclns_print(const u_char *, u_int, u_int);
233 extern void krb_print(const u_char *);
234 extern u_int llap_print(const u_char *, u_int);
235 extern u_int ltalk_if_print(const struct pcap_pkthdr *, const u_char *);
236 extern void msdp_print(const unsigned char *, u_int);
237 extern void nfsreply_print(const u_char *, u_int, const u_char *);
238 extern void nfsreq_print(const u_char *, u_int, const u_char *);
239 extern void ns_print(const u_char *, u_int, int);
240 extern void ntp_print(const u_char *, u_int);
241 extern u_int null_if_print(const struct pcap_pkthdr *, const u_char *);
242 extern void ospf_print(const u_char *, u_int, const u_char *);
243 extern void olsr_print (const u_char *, u_int);
244 extern void pimv1_print(const u_char *, u_int);
245 extern void cisco_autorp_print(const u_char *, u_int);
246 extern void rsvp_print(const u_char *, u_int);
247 extern void ldp_print(const u_char *, u_int);
248 extern void lldp_print(const u_char *, u_int);
249 extern void lmp_print(const u_char *, u_int);
250 extern void lspping_print(const u_char *, u_int);
251 extern void lwapp_control_print(const u_char *, u_int, int);
252 extern void lwapp_data_print(const u_char *, u_int);
253 extern void eigrp_print(const u_char *, u_int);
254 extern void mobile_print(const u_char *, u_int);
255 extern void pim_print(const u_char *, u_int);
256 extern u_int pppoe_print(const u_char *, u_int);
257 extern u_int ppp_print(register const u_char *, u_int);
258 extern u_int ppp_if_print(const struct pcap_pkthdr *, const u_char *);
259 extern u_int ppp_hdlc_if_print(const struct pcap_pkthdr *, const u_char *);
260 extern u_int ppp_bsdos_if_print(const struct pcap_pkthdr *, const u_char *);
261 extern u_int pppoe_if_print(const struct pcap_pkthdr *, const u_char *);
262 extern u_int prism_if_print(const struct pcap_pkthdr *, const u_char *);
263 extern void q933_print(const u_char *, u_int);
264 extern int vjc_print(register const char *, u_short);
265 extern void vqp_print(register const u_char *, register u_int);
266 extern u_int raw_if_print(const struct pcap_pkthdr *, const u_char *);
267 extern void rip_print(const u_char *, u_int);
268 extern u_int sl_if_print(const struct pcap_pkthdr *, const u_char *);
269 extern void lane_print(const u_char *, u_int, u_int);
270 extern u_int lane_if_print(const struct pcap_pkthdr *, const u_char *);
271 extern u_int cip_if_print(const struct pcap_pkthdr *, const u_char *);
272 extern u_int sl_bsdos_if_print(const struct pcap_pkthdr *, const u_char *);
273 extern u_int chdlc_if_print(const struct pcap_pkthdr *, const u_char *);
274 extern u_int chdlc_print(register const u_char *, u_int);
275 extern u_int juniper_atm1_print(const struct pcap_pkthdr *, const u_char *);
276 extern u_int juniper_atm2_print(const struct pcap_pkthdr *, const u_char *);
277 extern u_int juniper_mfr_print(const struct pcap_pkthdr *, register const u_char *);
278 extern u_int juniper_mlfr_print(const struct pcap_pkthdr *, const u_char *);
279 extern u_int juniper_mlppp_print(const struct pcap_pkthdr *, const u_char *);
280 extern u_int juniper_pppoe_print(const struct pcap_pkthdr *, const u_char *);
281 extern u_int juniper_pppoe_atm_print(const struct pcap_pkthdr *, const u_char *);
282 extern u_int juniper_ggsn_print(const struct pcap_pkthdr *, const u_char *);
283 extern u_int juniper_es_print(const struct pcap_pkthdr *, const u_char *);
284 extern u_int juniper_monitor_print(const struct pcap_pkthdr *, const u_char *);
285 extern u_int juniper_services_print(const struct pcap_pkthdr *, const u_char *);
286 extern u_int juniper_ether_print(const struct pcap_pkthdr *, const u_char *);
287 extern u_int juniper_ppp_print(const struct pcap_pkthdr *, const u_char *);
288 extern u_int juniper_frelay_print(const struct pcap_pkthdr *, const u_char *);
289 extern u_int juniper_chdlc_print(const struct pcap_pkthdr *, const u_char *);
290 extern u_int sll_if_print(const struct pcap_pkthdr *, const u_char *);
291 extern void snmp_print(const u_char *, u_int);
292 extern void sunrpcrequest_print(const u_char *, u_int, const u_char *);
293 extern u_int symantec_if_print(const struct pcap_pkthdr *, const u_char *);
294 extern void tcp_print(const u_char *, u_int, const u_char *, int);
295 extern void tftp_print(const u_char *, u_int);
296 extern void timed_print(const u_char *);
297 extern void udld_print(const u_char *, u_int);
298 extern void udp_print(const u_char *, u_int, const u_char *, int);
299 extern void vtp_print(const u_char *, u_int);
300 extern void wb_print(const void *, u_int);
301 extern int ah_print(register const u_char *);
302 extern int ipcomp_print(register const u_char *, int *);
303 extern void rx_print(register const u_char *, int, int, int, u_char *);
304 extern void netbeui_print(u_short, const u_char *, int);
305 extern void ipx_netbios_print(const u_char *, u_int);
306 extern void nbt_tcp_print(const u_char *, int);
307 extern void nbt_udp137_print(const u_char *, int);
308 extern void nbt_udp138_print(const u_char *, int);
309 extern void smb_tcp_print(const u_char *, int);
310 extern char *smb_errstr(int, int);
311 extern const char *nt_errstr(u_int32_t);
312 extern void print_data(const unsigned char *, int);
313 extern void l2tp_print(const u_char *, u_int);
314 extern void vrrp_print(const u_char *, u_int, int);
315 extern void slow_print(const u_char *, u_int);
316 extern void sflow_print(const u_char *, u_int);
317 extern void mpcp_print(const u_char *, u_int);
318 extern void cfm_print(const u_char *, u_int);
319 extern void pgm_print(const u_char *, u_int, const u_char *);
320 extern void cdp_print(const u_char *, u_int, u_int);
321 extern void dtp_print(const u_char *, u_int);
322 extern void stp_print(const u_char *, u_int);
323 extern void radius_print(const u_char *, u_int);
324 extern void lwres_print(const u_char *, u_int);
325 extern void pptp_print(const u_char *);
326 extern void dccp_print(const u_char *, const u_char *, u_int);
327 extern void sctp_print(const u_char *, const u_char *, u_int);
328 extern void mpls_print(const u_char *, u_int);
329 extern void mpls_lsp_ping_print(const u_char *, u_int);
330 extern void zephyr_print(const u_char *, int);
331 extern void hsrp_print(const u_char *, u_int);
332 extern void bfd_print(const u_char *, u_int, u_int);
333 extern void sip_print(const u_char *, u_int);
334 extern void syslog_print(const u_char *, u_int);
335 extern u_int bt_if_print(const struct pcap_pkthdr *, const u_char *);
336 
337 #ifdef INET6
338 extern void ip6_print(const u_char *, u_int);
339 extern void ip6_opt_print(const u_char *, int);
340 extern int hbhopt_print(const u_char *);
341 extern int dstopt_print(const u_char *);
342 extern int frag6_print(const u_char *, const u_char *);
343 extern int mobility_print(const u_char *, const u_char *);
344 extern void icmp6_print(const u_char *, u_int, const u_char *, int);
345 extern void ripng_print(const u_char *, unsigned int);
346 extern int rt6_print(const u_char *, const u_char *);
347 extern void ospf6_print(const u_char *, u_int);
348 extern void dhcp6_print(const u_char *, u_int);
349 #endif /*INET6*/
350 extern u_short in_cksum(const u_short *, register u_int, int);
351 extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
352 
353 #ifndef HAVE_BPF_DUMP
354 struct bpf_program;
355 
356 extern void bpf_dump(const struct bpf_program *, int);
357 
358 #endif
359 
360 #include "netdissect.h"
361 
362 /* forward compatibility */
363 
364 #ifndef NETDISSECT_REWORKED
365 extern netdissect_options *gndo;
366 
367 #define eflag gndo->ndo_eflag
368 #define fflag gndo->ndo_fflag
369 #define Kflag gndo->ndo_Kflag
370 #define nflag gndo->ndo_nflag
371 #define Nflag gndo->ndo_Nflag
372 #define Oflag gndo->ndo_Oflag
373 #define pflag gndo->ndo_pflag
374 #define qflag gndo->ndo_qflag
375 #define Rflag gndo->ndo_Rflag
376 #define sflag gndo->ndo_sflag
377 #define Sflag gndo->ndo_Sflag
378 #define tflag gndo->ndo_tflag
379 #define Uflag gndo->ndo_Uflag
380 #define uflag gndo->ndo_uflag
381 #define vflag gndo->ndo_vflag
382 #define xflag gndo->ndo_xflag
383 #define Xflag gndo->ndo_Xflag
384 #define Cflag gndo->ndo_Cflag
385 #define Gflag gndo->ndo_Gflag
386 #define Aflag gndo->ndo_Aflag
387 #define Bflag gndo->ndo_Bflag
388 #define Iflag gndo->ndo_Iflag
389 #define suppress_default_print gndo->ndo_suppress_default_print
390 #define packettype gndo->ndo_packettype
391 #define tcpmd5secret gndo->ndo_tcpmd5secret
392 #define Wflag gndo->ndo_Wflag
393 #define WflagChars gndo->ndo_WflagChars
394 #define Cflag_count gndo->ndo_Cflag_count
395 #define Gflag_count gndo->ndo_Gflag_count
396 #define Gflag_time gndo->ndo_Gflag_time
397 #define snaplen     gndo->ndo_snaplen
398 #define snapend     gndo->ndo_snapend
399 
400 #endif
401