1/*
2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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: interface.h,v 1.105 97/04/26 13:39:58 leres Exp $ (LBL)
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23 */
24
25#ifndef tcpdump_interface_h
26#define tcpdump_interface_h
27
28#include "gnuc.h"
29#ifdef HAVE_OS_PROTO_H
30#include "os-proto.h"
31#endif
32
33struct tok {
34 int v; /* value */
35 char *s; /* string */
36};
37
38extern int aflag; /* translate network and broadcast addresses */
39extern int dflag; /* print filter code */
40extern int eflag; /* print ethernet header */
41extern int fflag; /* don't translate "foreign" IP address */
42extern int nflag; /* leave addresses as numbers */
43extern int Nflag; /* remove domains from printed host names */
44extern int qflag; /* quick (shorter) output */
45extern int Sflag; /* print raw TCP sequence numbers */
46extern int tflag; /* print packet arrival time */
47extern int vflag; /* verbose */
48extern int xflag; /* print packet in hex */
49
50extern int packettype; /* as specified by -T */
51#define PT_VAT 1 /* Visual Audio Tool */
52#define PT_WB 2 /* distributed White Board */
53#define PT_RPC 3 /* Remote Procedure Call */
54#define PT_RTP 4 /* Real-Time Applications protocol */
55#define PT_RTCP 5 /* Real-Time Applications control protocol */
56
57#ifndef min
58#define min(a,b) ((a)>(b)?(b):(a))
59#endif
60#ifndef max
61#define max(a,b) ((b)>(a)?(b):(a))
62#endif
63
64/*
65 * The default snapshot length. This value allows most printers to print
66 * useful information while keeping the amount of unwanted data down.
67 * In particular, it allows for an ethernet header, tcp/ip header, and
68 * 14 bytes of data (assuming no ip options).
69 */
70#define DEFAULT_SNAPLEN 68
71
72#ifndef BIG_ENDIAN
73#define BIG_ENDIAN 4321
74#define LITTLE_ENDIAN 1234
75#endif
76
77#ifdef ETHER_HEADER_HAS_EA
78#define ESRC(ep) ((ep)->ether_shost.ether_addr_octet)
79#define EDST(ep) ((ep)->ether_dhost.ether_addr_octet)
80#else
81#define ESRC(ep) ((ep)->ether_shost)
82#define EDST(ep) ((ep)->ether_dhost)
83#endif
84
85#ifdef ETHER_ARP_HAS_X
86#define SHA(ap) ((ap)->arp_xsha)
87#define THA(ap) ((ap)->arp_xtha)
88#define SPA(ap) ((ap)->arp_xspa)
89#define TPA(ap) ((ap)->arp_xtpa)
90#else
91#ifdef ETHER_ARP_HAS_EA
92#define SHA(ap) ((ap)->arp_sha.ether_addr_octet)
93#define THA(ap) ((ap)->arp_tha.ether_addr_octet)
94#else
95#define SHA(ap) ((ap)->arp_sha)
96#define THA(ap) ((ap)->arp_tha)
97#endif
98#define SPA(ap) ((ap)->arp_spa)
99#define TPA(ap) ((ap)->arp_tpa)
100#endif
101
102#ifndef NTOHL
103#define NTOHL(x) (x) = ntohl(x)
104#define NTOHS(x) (x) = ntohs(x)
105#define HTONL(x) (x) = htonl(x)
106#define HTONS(x) (x) = htons(x)
107#endif
108#endif
109
110extern char *program_name; /* used to generate self-identifying messages */
111
112extern int32_t thiszone; /* seconds offset from gmt to local time */
113
114extern int snaplen;
115/* global pointers to beginning and end of current packet (during printing) */
116extern const u_char *packetp;
117extern const u_char *snapend;
118
119/* True if "l" bytes of "var" were captured */
120#define TTEST2(var, l) ((u_char *)&(var) <= snapend - (l))
121
122/* True if "var" was captured */
123#define TTEST(var) TTEST2(var, sizeof(var))
124
125/* Bail if "l" bytes of "var" were not captured */
126#define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
127
128/* Bail if "var" was not captured */
129#define TCHECK(var) TCHECK2(var, sizeof(var))
130
131#ifdef __STDC__
132struct timeval;
133#endif
134
135extern void ts_print(const struct timeval *);
136
137extern int fn_print(const u_char *, const u_char *);
138extern int fn_printn(const u_char *, u_int, const u_char *);
139extern const char *tok2str(const struct tok *, const char *, int);
140extern char *dnaddr_string(u_short);
141
142extern void wrapup(int);
143
144#if __STDC__
145extern __dead void error(const char *, ...)
146 __attribute__((volatile, format (printf, 1, 2)));
147extern void warning(const char *, ...) __attribute__ ((format (printf, 1, 2)));
148#endif
149
150extern char *read_infile(char *);
151extern char *copy_argv(char **);
152
153extern char *isonsap_string(const u_char *);
154extern char *llcsap_string(u_char);
155extern char *protoid_string(const u_char *);
156extern char *dnname_string(u_short);
157extern char *dnnum_string(u_short);
158
159/* The printer routines. */
160
161#ifdef __STDC__
162struct pcap_pkthdr;
163#endif
164
165extern int ether_encap_print(u_short, const u_char *, u_int, u_int);
166extern int llc_print(const u_char *, u_int, u_int, const u_char *,
167 const u_char *);
168extern void aarp_print(const u_char *, u_int);
169extern void arp_print(const u_char *, u_int, u_int);
170extern void atalk_print(const u_char *, u_int);
171extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
172extern void bootp_print(const u_char *, u_int, u_short, u_short);
173extern void decnet_print(const u_char *, u_int, u_int);
174extern void default_print(const u_char *, u_int);
175extern void default_print_unaligned(const u_char *, u_int);
176extern void dvmrp_print(const u_char *, u_int);
177extern void egp_print(const u_char *, u_int, const u_char *);
178extern void ether_if_print(u_char *, const struct pcap_pkthdr *,
179 const u_char *);
180extern void token_if_print(u_char *, const struct pcap_pkthdr *,
181 const u_char *);
182extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
183extern void gre_print(const u_char *, u_int);
184extern void icmp_print(const u_char *, const u_char *);
185extern void igrp_print(const u_char *, u_int, const u_char *);
186extern void ip_print(const u_char *, u_int);
187extern void ipx_print(const u_char *, u_int);
188extern void isoclns_print(const u_char *, u_int, u_int, const u_char *,
189 const u_char *);
190extern void krb_print(const u_char *, u_int);
191extern void nfsreply_print(const u_char *, u_int, const u_char *);
192extern void nfsreq_print(const u_char *, u_int, const u_char *);
193extern void ns_print(const u_char *, u_int);
194extern void ntp_print(const u_char *, u_int);
195extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
196extern void ospf_print(const u_char *, u_int, const u_char *);
197extern void pim_print(const u_char *, u_int);
198extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
199extern void ppp_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
200 const u_char *);
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202extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
203extern void rip_print(const u_char *, u_int);
204extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
205extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *,
206 const u_char *);
207extern void snmp_print(const u_char *, u_int);
208extern void sunrpcrequest_print(const u_char *, u_int, const u_char *);
209extern void tcp_print(const u_char *, u_int, const u_char *);
210extern void tftp_print(const u_char *, u_int);
211extern void udp_print(const u_char *, u_int, const u_char *);
212extern void wb_print(const void *, u_int);
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