The Tcpdump Group git mirrors - tcpdump/blob - interface.h

   1 /*      $NetBSD: interface.h,v 1.2 1995/03/06 19:10:18 mycroft Exp $    */
   2
   3 /*
   4  * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that: (1) source code distributions
   9  * retain the above copyright notice and this paragraph in its entirety, (2)
  10  * distributions including binary code include the above copyright notice and
  11  * this paragraph in its entirety in the documentation or other materials
  12  * provided with the distribution, and (3) all advertising materials mentioning
  13  * features or use of this software display the following acknowledgement:
  14  * ``This product includes software developed by the University of California,
  15  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  16  * the University nor the names of its contributors may be used to endorse
  17  * or promote products derived from this software without specific prior
  18  * written permission.
  19  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  20  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  22  *
  23  * @(#) $Header: /tcpdump/master/tcpdump/interface.h,v 1.107 1999-10-17 21:56:53 mcr Exp $ (LBL)
  24  */
  25
  26 #ifdef __GNUC__
  27 #define inline __inline
  28 #ifndef __dead
  29 #define __dead volatile
  30 #endif
  31 #else
  32 #define inline
  33 #define __dead
  34 #endif
  35
  36 #include "os.h"                 /* operating system stuff */
  37 #include "md.h"                 /* machine dependent stuff */
  38
  39 #ifndef SIGRET
  40 #define SIGRET void             /* default */
  41 #endif
  42
  43 struct token {
  44         int v;                  /* value */
  45         char *s;                /* string */
  46 };
  47
  48 extern int dflag;               /* print filter code */
  49 extern int eflag;               /* print ethernet header */
  50 extern int nflag;               /* leave addresses as numbers */
  51 extern int Nflag;               /* remove domains from printed host names */
  52 extern int qflag;               /* quick (shorter) output */
  53 extern int Sflag;               /* print raw TCP sequence numbers */
  54 extern int tflag;               /* print packet arrival time */
  55 extern int vflag;               /* verbose */
  56 extern int xflag;               /* print packet in hex */
  57
  58 extern int packettype;          /* as specified by -T */
  59 #define PT_VAT          1       /* Visual Audio Tool */
  60 #define PT_WB           2       /* distributed White Board */
  61 #define PT_RPC          3       /* Remote Procedure Call */
  62 #define PT_RTP          4       /* Real-Time Applications protocol */
  63 #define PT_RTCP         5       /* Real-Time Applications control protocol */
  64 #define PT_SNMP         6       /* Simple Network Management Protocol */
  65
  66 #ifndef min
  67 #define min(a,b) ((a)>(b)?(b):(a))
  68 #endif
  69 #ifndef max
  70 #define max(a,b) ((b)>(a)?(b):(a))
  71 #endif
  72
  73 /*
  74  * The default snapshot length.  This value allows most printers to print
  75  * useful information while keeping the amount of unwanted data down.
  76  * In particular, it allows for an ethernet header, tcp/ip header, and
  77  * 14 bytes of data (assuming no ip options).
  78  */
  79 #define DEFAULT_SNAPLEN 68
  80
  81 #ifndef BIG_ENDIAN
  82 #define BIG_ENDIAN 4321
  83 #define LITTLE_ENDIAN 1234
  84 #endif
  85
  86 #ifdef ETHER_HEADER_HAS_EA
  87 #define ESRC(ep) ((ep)->ether_shost.ether_addr_octet)
  88 #define EDST(ep) ((ep)->ether_dhost.ether_addr_octet)
  89 #else
  90 #define ESRC(ep) ((ep)->ether_shost)
  91 #define EDST(ep) ((ep)->ether_dhost)
  92 #endif
  93
  94 #ifdef ETHER_ARP_HAS_X
  95 #define SHA(ap) ((ap)->arp_xsha)
  96 #define THA(ap) ((ap)->arp_xtha)
  97 #define SPA(ap) ((ap)->arp_xspa)
  98 #define TPA(ap) ((ap)->arp_xtpa)
  99 #else
 100 #ifdef ETHER_ARP_HAS_EA
 101 #define SHA(ap) ((ap)->arp_sha.ether_addr_octet)
 102 #define THA(ap) ((ap)->arp_tha.ether_addr_octet)
 103 #else
 104 #define SHA(ap) ((ap)->arp_sha)
 105 #define THA(ap) ((ap)->arp_tha)
 106 #endif
 107 #define SPA(ap) ((ap)->arp_spa)
 108 #define TPA(ap) ((ap)->arp_tpa)
 109 #endif
 110
 111 #ifndef NTOHL
 112 #define NTOHL(x)        (x) = ntohl(x)
 113 #define NTOHS(x)        (x) = ntohs(x)
 114 #define HTONL(x)        (x) = htonl(x)
 115 #define HTONS(x)        (x) = htons(x)
 116 #endif
 117 #endif
 118
 119 extern char *program_name;      /* used to generate self-identifying messages */
 120
 121 extern int snaplen;
 122 /* global pointers to beginning and end of current packet (during printing) */
 123 extern const u_char *packetp;
 124 extern const u_char *snapend;
 125
 126 extern int fddipad;     /* alignment offset for FDDI headers, in bytes */
 127
 128 /* Eliminate some bogus warnings. */
 129 struct timeval;
 130
 131 typedef void (*printfunc)(u_char *, struct timeval *, int, int);
 132
 133 extern void ts_print(const struct timeval *);
 134 extern int clock_sigfigs(void);
 135 int gmt2local(void);
 136
 137 extern int fn_print(const u_char *, const u_char *);
 138 extern int fn_printn(const u_char *, u_int, const u_char *);
 139 extern const char *tok2str(const struct token *, const char *, int);
 140 extern char *dnaddr_string(u_short);
 141 extern char *savestr(const char *);
 142
 143 extern int initdevice(char *, int, int *);
 144 extern void wrapup(int);
 145
 146 extern __dead void error(char *, ...);
 147 extern void warning(char *, ...);
 148
 149 extern char *read_infile(char *);
 150 extern char *copy_argv(char **);
 151
 152 extern void usage(void);
 153 extern char *isonsap_string(const u_char *);
 154 extern char *llcsap_string(u_char);
 155 extern char *protoid_string(const u_char *);
 156 extern char *dnname_string(u_short);
 157 extern char *dnnum_string(u_short);
 158
 159 /* The printer routines. */
 160
 161 struct pcap_pkthdr;
 162
 163 extern void ether_if_print(u_char *, const struct pcap_pkthdr *,
 164                            const u_char *);
 165 extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char*);
 166 extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char*);
 167 extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
 168 extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *);
 169
 170 extern void arp_print(const u_char *, int, int);
 171 extern void ip_print(const u_char *, int);
 172 extern void tcp_print(const u_char *, int, const u_char *);
 173 extern void udp_print(const u_char *, int, const u_char *);
 174 extern void icmp_print(const u_char *, const u_char *);
 175 extern void default_print(const u_char *, int);
 176 extern void default_print_unaligned(const u_char *, int);
 177
 178 extern void aarp_print(const u_char *, int);
 179 extern void atalk_print(const u_char *, int);
 180 extern void bootp_print(const u_char *, int, u_short, u_short);
 181 extern void decnet_print(const u_char *, int, int);
 182 extern void egp_print(const u_char *, int, const u_char *);
 183 extern int ether_encap_print(u_short, const u_char *, int, int);
 184 extern void ipx_print(const u_char *, int length);
 185 extern void isoclns_print(const u_char *, int, int,
 186                           const u_char *, const u_char *);
 187 extern int llc_print(const u_char *, int, int, const u_char *, const u_char *);
 188 extern void nfsreply_print(const u_char *, int, const u_char *);
 189 extern void nfsreq_print(const u_char *, int, const u_char *);
 190 extern void ns_print(const u_char *, int);
 191 extern void ntp_print(const u_char *, int);
 192 extern void ospf_print(const u_char *, int, const u_char *);
 193 extern void rip_print(const u_char *, int);
 194 extern void snmp_print(const u_char *, int);
 195 extern void sunrpcrequest_print(const u_char *, int, const u_char *);
 196 extern void tftp_print(const u_char *, int);
 197 extern void wb_print(const void *, int);
 198 extern void print_ipproto(u_int proto, const struct ip *ip, const u_char *cp,  int len);
 199
 200 #define min(a,b) ((a)>(b)?(b):(a))
 201 #define max(a,b) ((b)>(a)?(b):(a))
 202
 203 /*
 204  * The default snapshot length.  This value allows most printers to print
 205  * useful information while keeping the amount of unwanted data down.
 206  * In particular, it allows for an ethernet header, tcp/ip header, and
 207  * 14 bytes of data (assuming no ip options).
 208  */
 209 #define DEFAULT_SNAPLEN 512
 210
 211 #ifndef BIG_ENDIAN
 212 #define BIG_ENDIAN 4321
 213 #define LITTLE_ENDIAN 1234
 214 #endif