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interface.h (98348) interface.h (98527)
1/*
1/*
2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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 *
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 1.149 2001/01/02 22:47:06 guy Exp $ (LBL)
22 * $FreeBSD: head/contrib/tcpdump/interface.h 98348 2002-06-17 15:26:56Z fenner $
21 * @(#) $Header: /tcpdump/master/tcpdump/interface.h,v 1.178 2002/01/21 11:39:58 mcr Exp $ (LBL)
22 *
23 * $FreeBSD: head/contrib/tcpdump/interface.h 98527 2002-06-21 00:49:02Z fenner $
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

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35#define __attribute__(x)
36#endif
37
38/* snprintf et al */
39
40#include <stdarg.h>
41
42#if !defined(HAVE_SNPRINTF)
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

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36#define __attribute__(x)
37#endif
38
39/* snprintf et al */
40
41#include <stdarg.h>
42
43#if !defined(HAVE_SNPRINTF)
43int snprintf (char *str, size_t sz, const char *format, ...)
44 __attribute__ ((format (printf, 3, 4)));
44int snprintf(char *, size_t, const char *, ...)
45 __attribute__((format(printf, 3, 4)));
45#endif
46
47#if !defined(HAVE_VSNPRINTF)
46#endif
47
48#if !defined(HAVE_VSNPRINTF)
48int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
49 __attribute__((format (printf, 3, 0)));
49int vsnprintf(char *, size_t, const char *, va_list)
50 __attribute__((format(printf, 3, 0)));
50#endif
51
52#ifndef HAVE_STRLCAT
51#endif
52
53#ifndef HAVE_STRLCAT
53extern size_t strlcat (char *, const char *, size_t);
54extern size_t strlcat(char *, const char *, size_t);
54#endif
55#ifndef HAVE_STRLCPY
55#endif
56#ifndef HAVE_STRLCPY
56extern size_t strlcpy (char *, const char *, size_t);
57extern size_t strlcpy(char *, const char *, size_t);
57#endif
58
58#endif
59
60#ifndef HAVE_STRDUP
61extern char *strdup(const char *);
62#endif
63
59struct tok {
60 int v; /* value */
64struct tok {
65 int v; /* value */
61 char *s; /* string */
66 const char *s; /* string */
62};
63
64extern int aflag; /* translate network and broadcast addresses */
65extern int dflag; /* print filter code */
66extern int eflag; /* print ethernet header */
67extern int fflag; /* don't translate "foreign" IP address */
68extern int nflag; /* leave addresses as numbers */
69extern int Nflag; /* remove domains from printed host names */
70extern int qflag; /* quick (shorter) output */
71extern int Rflag; /* print sequence # field in AH/ESP*/
72extern int sflag; /* use the libsmi to translate OIDs */
73extern int Sflag; /* print raw TCP sequence numbers */
74extern int tflag; /* print packet arrival time */
75extern int uflag; /* Print undecoded NFS handles */
76extern int vflag; /* verbose */
77extern int xflag; /* print packet in hex */
78extern int Xflag; /* print packet in hex/ascii */
79
80extern char *espsecret;
67};
68
69extern int aflag; /* translate network and broadcast addresses */
70extern int dflag; /* print filter code */
71extern int eflag; /* print ethernet header */
72extern int fflag; /* don't translate "foreign" IP address */
73extern int nflag; /* leave addresses as numbers */
74extern int Nflag; /* remove domains from printed host names */
75extern int qflag; /* quick (shorter) output */
76extern int Rflag; /* print sequence # field in AH/ESP*/
77extern int sflag; /* use the libsmi to translate OIDs */
78extern int Sflag; /* print raw TCP sequence numbers */
79extern int tflag; /* print packet arrival time */
80extern int uflag; /* Print undecoded NFS handles */
81extern int vflag; /* verbose */
82extern int xflag; /* print packet in hex */
83extern int Xflag; /* print packet in hex/ascii */
84
85extern char *espsecret;
86extern struct esp_algorithm *espsecret_xform; /* cache of decoded alg. */
87extern char *espsecret_key;
81
82extern int packettype; /* as specified by -T */
83#define PT_VAT 1 /* Visual Audio Tool */
84#define PT_WB 2 /* distributed White Board */
85#define PT_RPC 3 /* Remote Procedure Call */
86#define PT_RTP 4 /* Real-Time Applications protocol */
87#define PT_RTCP 5 /* Real-Time Applications control protocol */
88#define PT_SNMP 6 /* Simple Network Management Protocol */
89#define PT_CNFP 7 /* Cisco NetFlow protocol */
90
91#ifndef min
92#define min(a,b) ((a)>(b)?(b):(a))
93#endif
94#ifndef max
95#define max(a,b) ((b)>(a)?(b):(a))
96#endif
97
88
89extern 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
98#ifndef min
99#define min(a,b) ((a)>(b)?(b):(a))
100#endif
101#ifndef max
102#define max(a,b) ((b)>(a)?(b):(a))
103#endif
104
98#ifndef INET6
99/*
100 * The default snapshot length. This value allows most printers to print
101 * useful information while keeping the amount of unwanted data down.
105/*
106 * The default snapshot length. This value allows most printers to print
107 * useful information while keeping the amount of unwanted data down.
102 * In particular, it allows for an ethernet header, tcp/ip header, and
103 * 14 bytes of data (assuming no ip options).
104 */
108 */
105#define DEFAULT_SNAPLEN 68
109#ifndef INET6
110#define DEFAULT_SNAPLEN 68 /* ether + IPv4 + TCP + 14 */
106#else
111#else
107#define DEFAULT_SNAPLEN 96
112#define DEFAULT_SNAPLEN 96 /* ether + IPv6 + TCP + 22 */
108#endif
109
110#ifndef BIG_ENDIAN
111#define BIG_ENDIAN 4321
112#define LITTLE_ENDIAN 1234
113#endif
114
115#define ESRC(ep) ((ep)->ether_shost)

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147#define TTEST(var) TTEST2(var, sizeof(var))
148
149/* Bail if "l" bytes of "var" were not captured */
150#define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
151
152/* Bail if "var" was not captured */
153#define TCHECK(var) TCHECK2(var, sizeof(var))
154
113#endif
114
115#ifndef BIG_ENDIAN
116#define BIG_ENDIAN 4321
117#define LITTLE_ENDIAN 1234
118#endif
119
120#define ESRC(ep) ((ep)->ether_shost)

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152#define TTEST(var) TTEST2(var, sizeof(var))
153
154/* Bail if "l" bytes of "var" were not captured */
155#define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
156
157/* Bail if "var" was not captured */
158#define TCHECK(var) TCHECK2(var, sizeof(var))
159
155struct timeval;
156
157extern void ts_print(const struct timeval *);
158extern void relts_print(int);
159
160extern int fn_print(const u_char *, const u_char *);
161extern int fn_printn(const u_char *, u_int, const u_char *);
162extern const char *tok2str(const struct tok *, const char *, int);
160extern void ts_print(const struct timeval *);
161extern void relts_print(int);
162
163extern int fn_print(const u_char *, const u_char *);
164extern int fn_printn(const u_char *, u_int, const u_char *);
165extern const char *tok2str(const struct tok *, const char *, int);
163extern char *dnaddr_string(u_short);
166extern 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)
164
168
165extern void wrapup(int);
169extern const char *dnaddr_string(u_short);
166
170
171extern void info(int);
172extern int infodelay;
173extern int infoprint;
174
167extern void error(const char *, ...)
168 __attribute__((noreturn, format (printf, 1, 2)));
169extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2)));
170
171extern char *read_infile(char *);
172extern char *copy_argv(char **);
173
174extern void safeputchar(int);
175extern void safeputs(const char *);
176
175extern void error(const char *, ...)
176 __attribute__((noreturn, format (printf, 1, 2)));
177extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2)));
178
179extern char *read_infile(char *);
180extern char *copy_argv(char **);
181
182extern void safeputchar(int);
183extern void safeputs(const char *);
184
177extern char *isonsap_string(const u_char *);
178extern char *llcsap_string(u_char);
179extern char *protoid_string(const u_char *);
180extern char *dnname_string(u_short);
181extern char *dnnum_string(u_short);
185extern const char *isonsap_string(const u_char *);
186extern const char *llcsap_string(u_char);
187extern const char *protoid_string(const u_char *);
188extern const char *ipxsap_string(u_short);
189extern const char *dnname_string(u_short);
190extern const char *dnnum_string(u_short);
182
183/* The printer routines. */
184
191
192/* The printer routines. */
193
185struct pcap_pkthdr;
194#include <pcap.h>
186
187extern void ascii_print_with_offset(const u_char *, u_int, u_int);
188extern void ascii_print(const u_char *, u_int);
189extern void hex_print_with_offset(const u_char *, u_int, u_int);
190extern void telnet_print(const u_char *, u_int);
191extern void hex_print(const u_char *, u_int);
192extern int ether_encap_print(u_short, const u_char *, u_int, u_int, u_short *);
193extern int llc_print(const u_char *, u_int, u_int, const u_char *,
194 const u_char *, u_short *);
195extern void aarp_print(const u_char *, u_int);
196extern void arp_print(const u_char *, u_int, u_int);
197extern void atalk_print(const u_char *, u_int);
198extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
199extern void bootp_print(const u_char *, u_int, u_short, u_short);
200extern void bgp_print(const u_char *, int);
195
196extern void ascii_print_with_offset(const u_char *, u_int, u_int);
197extern void ascii_print(const u_char *, u_int);
198extern void hex_print_with_offset(const u_char *, u_int, u_int);
199extern void telnet_print(const u_char *, u_int);
200extern void hex_print(const u_char *, u_int);
201extern int ether_encap_print(u_short, const u_char *, u_int, u_int, u_short *);
202extern int llc_print(const u_char *, u_int, u_int, const u_char *,
203 const u_char *, u_short *);
204extern void aarp_print(const u_char *, u_int);
205extern void arp_print(const u_char *, u_int, u_int);
206extern void atalk_print(const u_char *, u_int);
207extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
208extern void bootp_print(const u_char *, u_int, u_short, u_short);
209extern void bgp_print(const u_char *, int);
201extern void bxxp_print(const u_char *, u_int);
202extern void cnfp_print(const u_char *cp, u_int len, const u_char *bp);
210extern void beep_print(const u_char *, u_int);
211extern void cnfp_print(const u_char *, u_int, const u_char *);
203extern void decnet_print(const u_char *, u_int, u_int);
204extern void default_print(const u_char *, u_int);
205extern void default_print_unaligned(const u_char *, u_int);
206extern void dvmrp_print(const u_char *, u_int);
207extern void egp_print(const u_char *, u_int, const u_char *);
212extern void decnet_print(const u_char *, u_int, u_int);
213extern void default_print(const u_char *, u_int);
214extern void default_print_unaligned(const u_char *, u_int);
215extern void dvmrp_print(const u_char *, u_int);
216extern void egp_print(const u_char *, u_int, const u_char *);
217extern void arcnet_if_print(u_char *, const struct pcap_pkthdr *,
218 const u_char *);
208extern void ether_if_print(u_char *, const struct pcap_pkthdr *,
209 const u_char *);
210extern void token_if_print(u_char *, const struct pcap_pkthdr *,
211 const u_char *);
212extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
219extern void ether_if_print(u_char *, const struct pcap_pkthdr *,
220 const u_char *);
221extern void token_if_print(u_char *, const struct pcap_pkthdr *,
222 const u_char *);
223extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
224extern void ieee802_11_if_print(u_char *, const struct pcap_pkthdr *,
225 const u_char *);
213extern void gre_print(const u_char *, u_int);
214extern void icmp_print(const u_char *, u_int, const u_char *);
226extern void gre_print(const u_char *, u_int);
227extern void icmp_print(const u_char *, u_int, const u_char *);
215extern void igmp_print(const u_char *, u_int, const u_char *);
228extern void igmp_print(const u_char *, u_int);
216extern void igrp_print(const u_char *, u_int, const u_char *);
217extern void ip_print(const u_char *, u_int);
218extern void ipN_print(const u_char *, u_int);
219extern void ipx_print(const u_char *, u_int);
220extern void isoclns_print(const u_char *, u_int, u_int, const u_char *,
221 const u_char *);
222extern void krb_print(const u_char *, u_int);
223extern void llap_print(const u_char *, u_int);
229extern void igrp_print(const u_char *, u_int, const u_char *);
230extern void ip_print(const u_char *, u_int);
231extern void ipN_print(const u_char *, u_int);
232extern void ipx_print(const u_char *, u_int);
233extern void isoclns_print(const u_char *, u_int, u_int, const u_char *,
234 const u_char *);
235extern void krb_print(const u_char *, u_int);
236extern void llap_print(const u_char *, u_int);
237extern void ltalk_if_print(u_char *, const struct pcap_pkthdr *,
238 const u_char *);
239extern void msdp_print(const unsigned char *, u_int);
224extern void nfsreply_print(const u_char *, u_int, const u_char *);
225extern void nfsreq_print(const u_char *, u_int, const u_char *);
226extern void ns_print(const u_char *, u_int);
227extern void ntp_print(const u_char *, u_int);
228extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
229extern void ospf_print(const u_char *, u_int, const u_char *);
230extern void pimv1_print(const u_char *, u_int);
231extern void cisco_autorp_print(const u_char *, u_int);
232extern void mobile_print(const u_char *, u_int);
233extern void pim_print(const u_char *, u_int);
234extern void pppoe_print(const u_char *, u_int);
235extern void ppp_print(register const u_char *, u_int);
236extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
237extern void ppp_hdlc_if_print(u_char *, const struct pcap_pkthdr *,
238 const u_char *);
239extern void ppp_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
240 const u_char *);
240extern void nfsreply_print(const u_char *, u_int, const u_char *);
241extern void nfsreq_print(const u_char *, u_int, const u_char *);
242extern void ns_print(const u_char *, u_int);
243extern void ntp_print(const u_char *, u_int);
244extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
245extern void ospf_print(const u_char *, u_int, const u_char *);
246extern void pimv1_print(const u_char *, u_int);
247extern void cisco_autorp_print(const u_char *, u_int);
248extern void mobile_print(const u_char *, u_int);
249extern void pim_print(const u_char *, u_int);
250extern void pppoe_print(const u_char *, u_int);
251extern void ppp_print(register const u_char *, u_int);
252extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
253extern void ppp_hdlc_if_print(u_char *, const struct pcap_pkthdr *,
254 const u_char *);
255extern void ppp_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
256 const u_char *);
257extern void pppoe_if_print(u_char *, const struct pcap_pkthdr *,
258 const u_char *);
241extern int vjc_print(register const char *, register u_int, u_short);
242extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
243extern void rip_print(const u_char *, u_int);
244extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
245extern void lane_if_print(u_char *, const struct pcap_pkthdr *,const u_char *);
246extern void cip_if_print(u_char *, const struct pcap_pkthdr *,const u_char *);
247extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
248 const u_char *);
249extern void chdlc_if_print(u_char *, const struct pcap_pkthdr *,
250 const u_char *);
259extern int vjc_print(register const char *, register u_int, u_short);
260extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
261extern void rip_print(const u_char *, u_int);
262extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
263extern void lane_if_print(u_char *, const struct pcap_pkthdr *,const u_char *);
264extern void cip_if_print(u_char *, const struct pcap_pkthdr *,const u_char *);
265extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
266 const u_char *);
267extern void chdlc_if_print(u_char *, const struct pcap_pkthdr *,
268 const u_char *);
269extern void chdlc_print(register const u_char *, u_int, u_int);
251extern void sll_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
252extern void snmp_print(const u_char *, u_int);
253extern void sunrpcrequest_print(const u_char *, u_int, const u_char *);
254extern void tcp_print(const u_char *, u_int, const u_char *, int);
255extern void tftp_print(const u_char *, u_int);
256extern void timed_print(const u_char *, u_int);
257extern void udp_print(const u_char *, u_int, const u_char *, int);
258extern void wb_print(const void *, u_int);
259extern int ah_print(register const u_char *, register const u_char *);
270extern void sll_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
271extern void snmp_print(const u_char *, u_int);
272extern void sunrpcrequest_print(const u_char *, u_int, const u_char *);
273extern void tcp_print(const u_char *, u_int, const u_char *, int);
274extern void tftp_print(const u_char *, u_int);
275extern void timed_print(const u_char *, u_int);
276extern void udp_print(const u_char *, u_int, const u_char *, int);
277extern void wb_print(const void *, u_int);
278extern int ah_print(register const u_char *, register const u_char *);
260extern int esp_print(register const u_char *, register const u_char *, int *);
279extern int esp_print(register const u_char *, register const u_char *, int *, int *);
261extern void isakmp_print(const u_char *, u_int, const u_char *);
262extern int ipcomp_print(register const u_char *, register const u_char *, int *);
263extern void rx_print(register const u_char *, int, int, int, u_char *);
280extern void isakmp_print(const u_char *, u_int, const u_char *);
281extern int ipcomp_print(register const u_char *, register const u_char *, int *);
282extern void rx_print(register const u_char *, int, int, int, u_char *);
264extern void netbeui_print(u_short, const u_char *, const u_char *);
265extern void ipx_netbios_print(const u_char *, const u_char *);
283extern void netbeui_print(u_short, const u_char *, int);
284extern void ipx_netbios_print(const u_char *, u_int);
266extern void nbt_tcp_print(const u_char *, int);
285extern void nbt_tcp_print(const u_char *, int);
267extern void nbt_udp137_print(const u_char *data, int);
268extern void nbt_udp138_print(const u_char *data, int);
286extern void nbt_udp137_print(const u_char *, int);
287extern void nbt_udp138_print(const u_char *, int);
269extern char *smb_errstr(int, int);
270extern void print_data(const unsigned char *, int);
271extern void l2tp_print(const u_char *, u_int);
272extern void lcp_print(const u_char *, u_int);
288extern char *smb_errstr(int, int);
289extern void print_data(const unsigned char *, int);
290extern void l2tp_print(const u_char *, u_int);
291extern void lcp_print(const u_char *, u_int);
273extern void vrrp_print(const u_char *bp, u_int len, int ttl);
274extern void cdp_print(const u_char *p, u_int length, u_int caplen,
275 const u_char *esrc, const u_char *edst);
276extern void stp_print(const u_char *p, u_int length);
292extern void vrrp_print(const u_char *, u_int, int);
293extern void cdp_print(const u_char *, u_int, u_int, const u_char *,
294 const u_char *);
295extern void stp_print(const u_char *, u_int);
277extern void radius_print(const u_char *, u_int);
296extern void radius_print(const u_char *, u_int);
297extern void lwres_print(const u_char *, u_int);
298extern void pptp_print(const u_char *, u_int);
299extern void sctp_print(const u_char *, const u_char *, u_int);
300extern void mpls_print(const u_char *, u_int);
301extern void zephyr_print(const u_char *, int);
302extern void hsrp_print(const u_char *, u_int);
278
279#ifdef INET6
303
304#ifdef INET6
280extern void ip6_print(const u_char *, int);
305extern void ip6_print(const u_char *, u_int);
281extern void ip6_opt_print(const u_char *, int);
282extern int hbhopt_print(const u_char *);
283extern int dstopt_print(const u_char *);
284extern int frag6_print(const u_char *, const u_char *);
285extern void icmp6_print(const u_char *, const u_char *);
306extern void ip6_opt_print(const u_char *, int);
307extern int hbhopt_print(const u_char *);
308extern int dstopt_print(const u_char *);
309extern int frag6_print(const u_char *, const u_char *);
310extern void icmp6_print(const u_char *, const u_char *);
286extern void ripng_print(const u_char *, int);
311extern void ripng_print(const u_char *, unsigned int);
287extern int rt6_print(const u_char *, const u_char *);
288extern void ospf6_print(const u_char *, u_int);
289extern void dhcp6_print(const u_char *, u_int, u_int16_t, u_int16_t);
290#endif /*INET6*/
312extern int rt6_print(const u_char *, const u_char *);
313extern void ospf6_print(const u_char *, u_int);
314extern void dhcp6_print(const u_char *, u_int, u_int16_t, u_int16_t);
315#endif /*INET6*/
291extern u_short in_cksum(const u_short *addr, register int len, u_short csum);
316extern u_short in_cksum(const u_short *, register u_int, int);
317
318#ifndef HAVE_BPF_DUMP
319struct bpf_program;
320
321extern void bpf_dump(struct bpf_program *, int);
322#endif