508 lines
20 KiB
C
508 lines
20 KiB
C
/*
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* Copyright (c) 1988-1997
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* The Regents of the University of California. All rights reserved.
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*
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* Copyright (c) 1998-2004 Michael Richardson <mcr@tcpdump.org>
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* The TCPDUMP project
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* @(#) $Header: /tcpdump/master/tcpdump/netdissect.h,v 1.27 2008-08-16 11:36:20 hannes Exp $ (LBL)
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*/
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#ifndef netdissect_h
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#define netdissect_h
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#ifdef HAVE_OS_PROTO_H
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#include "os-proto.h"
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#endif
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#include <sys/types.h>
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#ifndef HAVE___ATTRIBUTE__
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#define __attribute__(x)
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#endif
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/* snprintf et al */
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#include <stdarg.h>
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#if !defined(HAVE_SNPRINTF)
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int snprintf (char *str, size_t sz, const char *format, ...)
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__attribute__ ((format (printf, 3, 4)));
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#endif
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#if !defined(HAVE_VSNPRINTF)
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int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
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__attribute__((format (printf, 3, 0)));
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#endif
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#ifndef HAVE_STRLCAT
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extern size_t strlcat (char *, const char *, size_t);
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#endif
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#ifndef HAVE_STRLCPY
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extern size_t strlcpy (char *, const char *, size_t);
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#endif
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#ifndef HAVE_STRDUP
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extern char *strdup (const char *str);
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#endif
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#ifndef HAVE_STRSEP
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extern char *strsep(char **, const char *);
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#endif
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struct tok {
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int v; /* value */
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const char *s; /* string */
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};
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#define TOKBUFSIZE 128
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extern const char *tok2strbuf(const struct tok *, const char *, int,
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char *buf, size_t bufsize);
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/* tok2str is deprecated */
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extern const char *tok2str(const struct tok *, const char *, int);
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extern char *bittok2str(const struct tok *, const char *, int);
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extern char *bittok2str_nosep(const struct tok *, const char *, int);
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typedef struct netdissect_options netdissect_options;
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struct netdissect_options {
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int ndo_aflag; /* translate network and broadcast addresses */
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int ndo_bflag; /* print 4 byte ASes in ASDOT notation */
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int ndo_eflag; /* print ethernet header */
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int ndo_fflag; /* don't translate "foreign" IP address */
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int ndo_Kflag; /* don't check TCP checksums */
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int ndo_nflag; /* leave addresses as numbers */
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int ndo_Nflag; /* remove domains from printed host names */
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int ndo_qflag; /* quick (shorter) output */
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int ndo_Rflag; /* print sequence # field in AH/ESP*/
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int ndo_sflag; /* use the libsmi to translate OIDs */
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int ndo_Sflag; /* print raw TCP sequence numbers */
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int ndo_tflag; /* print packet arrival time */
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int ndo_Uflag; /* "unbuffered" output of dump files */
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int ndo_uflag; /* Print undecoded NFS handles */
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int ndo_vflag; /* verbose */
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int ndo_xflag; /* print packet in hex */
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int ndo_Xflag; /* print packet in hex/ascii */
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int ndo_Aflag; /* print packet only in ascii observing TAB,
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* LF, CR and SPACE as graphical chars
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*/
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int ndo_Bflag; /* buffer size */
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int ndo_Iflag; /* rfmon (monitor) mode */
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int ndo_Oflag; /* run filter code optimizer */
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int ndo_dlt; /* if != -1, ask libpcap for the DLT it names*/
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int ndo_jflag; /* packet time stamp source */
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int ndo_pflag; /* don't go promiscuous */
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int ndo_Cflag; /* rotate dump files after this many bytes */
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int ndo_Cflag_count; /* Keep track of which file number we're writing */
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int ndo_Gflag; /* rotate dump files after this many seconds */
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int ndo_Gflag_count; /* number of files created with Gflag rotation */
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time_t ndo_Gflag_time; /* The last time_t the dump file was rotated. */
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int ndo_Wflag; /* recycle output files after this number of files */
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int ndo_WflagChars;
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int ndo_Hflag; /* dissect 802.11s draft mesh standard */
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int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */
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const char *ndo_dltname;
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char *ndo_espsecret;
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struct sa_list *ndo_sa_list_head; /* used by print-esp.c */
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struct sa_list *ndo_sa_default;
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char *ndo_sigsecret; /* Signature verification secret key */
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struct esp_algorithm *ndo_espsecret_xform; /* cache of decoded */
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char *ndo_espsecret_key;
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int ndo_packettype; /* as specified by -T */
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char *ndo_program_name; /*used to generate self-identifying messages */
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int32_t ndo_thiszone; /* seconds offset from gmt to local time */
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int ndo_snaplen;
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/*global pointers to beginning and end of current packet (during printing) */
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const u_char *ndo_packetp;
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const u_char *ndo_snapend;
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/* bookkeeping for ^T output */
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int ndo_infodelay;
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/* pointer to void function to output stuff */
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void (*ndo_default_print)(netdissect_options *,
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register const u_char *bp, register u_int length);
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void (*ndo_info)(netdissect_options *, int verbose);
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int (*ndo_printf)(netdissect_options *,
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const char *fmt, ...)
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#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
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__attribute__ ((format (printf, 2, 3)))
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#endif
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;
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void (*ndo_error)(netdissect_options *,
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const char *fmt, ...)
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#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
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__attribute__ ((noreturn, format (printf, 2, 3)))
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#endif
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;
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void (*ndo_warning)(netdissect_options *,
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const char *fmt, ...)
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#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
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__attribute__ ((format (printf, 2, 3)))
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#endif
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;
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};
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#define PT_VAT 1 /* Visual Audio Tool */
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#define PT_WB 2 /* distributed White Board */
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#define PT_RPC 3 /* Remote Procedure Call */
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#define PT_RTP 4 /* Real-Time Applications protocol */
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#define PT_RTCP 5 /* Real-Time Applications control protocol */
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#define PT_SNMP 6 /* Simple Network Management Protocol */
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#define PT_CNFP 7 /* Cisco NetFlow protocol */
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#ifndef min
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#define min(a,b) ((a)>(b)?(b):(a))
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#endif
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#ifndef max
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#define max(a,b) ((b)>(a)?(b):(a))
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#endif
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/*
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* Maximum snapshot length. This should be enough to capture the full
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* packet on most network interfaces.
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*
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* XXX - could it be larger? If so, should it? Some applications might
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* use the snapshot length in a savefile header to control the size of
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* the buffer they allocate, so a size of, say, 2^31-1 might not work
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* well.
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*/
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#define MAXIMUM_SNAPLEN 65535
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/*
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* The default snapshot length is the maximum.
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*/
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#define DEFAULT_SNAPLEN MAXIMUM_SNAPLEN
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#define ESRC(ep) ((ep)->ether_shost)
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#define EDST(ep) ((ep)->ether_dhost)
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#ifndef NTOHL
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#define NTOHL(x) (x) = ntohl(x)
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#define NTOHS(x) (x) = ntohs(x)
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#define HTONL(x) (x) = htonl(x)
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#define HTONS(x) (x) = htons(x)
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#endif
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/*
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* True if "l" bytes of "var" were captured.
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*
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* The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
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* "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
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*
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* The check is for <= rather than < because "l" might be 0.
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*/
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#define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
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(const u_char *)&(var) <= ndo->ndo_snapend - (l))
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/* True if "var" was captured */
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#define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
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/* Bail if "l" bytes of "var" were not captured */
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#define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
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/* Bail if "var" was not captured */
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#define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
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#define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
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#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
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#if 0
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extern void ts_print(netdissect_options *ipdo,
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const struct timeval *);
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extern void relts_print(int);
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#endif
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extern int fn_print(const u_char *, const u_char *);
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extern int fn_printn(const u_char *, u_int, const u_char *);
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extern const char *tok2str(const struct tok *, const char *, int);
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extern void wrapup(int);
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#if 0
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extern char *read_infile(netdissect_options *, char *);
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extern char *copy_argv(netdissect_options *, char **);
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#endif
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extern void safeputchar(int);
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extern void safeputs(const char *, int);
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#define PLURAL_SUFFIX(n) \
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(((n) != 1) ? "s" : "")
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#if 0
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extern const char *isonsap_string(netdissect_options *, const u_char *);
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extern const char *protoid_string(netdissect_options *, const u_char *);
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extern const char *dnname_string(netdissect_options *, u_short);
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extern const char *dnnum_string(netdissect_options *, u_short);
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#endif
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/* The printer routines. */
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#include <pcap.h>
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typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
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const struct pcap_pkthdr *, const u_char *);
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typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
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extern if_ndo_printer lookup_ndo_printer(int);
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extern if_printer lookup_printer(int);
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extern void eap_print(netdissect_options *,const u_char *, u_int);
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extern int esp_print(netdissect_options *,
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register const u_char *bp, int len, register const u_char *bp2,
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int *nhdr, int *padlen);
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extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
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extern void icmp6_print(netdissect_options *ndo, const u_char *,
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u_int, const u_char *, int);
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extern void isakmp_print(netdissect_options *,const u_char *,
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u_int, const u_char *);
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extern void isakmp_rfc3948_print(netdissect_options *,const u_char *,
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u_int, const u_char *);
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extern void ip_print(netdissect_options *,const u_char *, u_int);
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extern void ip_print_inner(netdissect_options *ndo,
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const u_char *bp, u_int length, u_int nh,
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const u_char *bp2);
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extern void rrcp_print(netdissect_options *,const u_char *, u_int);
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extern void ether_print(netdissect_options *,
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const u_char *, u_int, u_int,
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void (*)(netdissect_options *, const u_char *),
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const u_char *);
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extern u_int ether_if_print(netdissect_options *,
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const struct pcap_pkthdr *,const u_char *);
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extern u_int netanalyzer_if_print(netdissect_options *,
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const struct pcap_pkthdr *,const u_char *);
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extern u_int netanalyzer_transparent_if_print(netdissect_options *,
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const struct pcap_pkthdr *,
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const u_char *);
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extern int ethertype_print(netdissect_options *,u_short, const u_char *,
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u_int, u_int);
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/* stuff that has not yet been rototiled */
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#if 0
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extern void ascii_print(netdissect_options *,u_int);
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extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *,
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u_int, u_int);
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extern void hex_and_ascii_print(netdissect_options *,const char *, u_int);
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extern void hex_print_with_offset(netdissect_options *,const char *,
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u_int, u_int);
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extern void hex_print(netdissect_options *,const char *, u_int);
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extern void telnet_print(netdissect_options *,const u_char *, u_int);
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extern int llc_print(netdissect_options *,
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const u_char *, u_int, u_int, const u_char *,
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const u_char *, u_short *);
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extern void aarp_print(netdissect_options *,const u_char *, u_int);
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extern void atalk_print(netdissect_options *,const u_char *, u_int);
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extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void bootp_print(netdissect_options *,const u_char *,
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u_int, u_short, u_short);
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extern void bgp_print(netdissect_options *,const u_char *, int);
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extern void bxxp_print(netdissect_options *,const u_char *, u_int);
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extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h,
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register const u_char *p);
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extern void chdlc_print(netdissect_options *ndo,
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register const u_char *p, u_int length, u_int caplen);
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extern void cisco_autorp_print(netdissect_options *,
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const u_char *, u_int);
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extern void cnfp_print(netdissect_options *,const u_char *cp,
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u_int len, const u_char *bp);
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extern void decnet_print(netdissect_options *,const u_char *,
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u_int, u_int);
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extern void default_print(netdissect_options *,const u_char *, u_int);
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extern void dvmrp_print(netdissect_options *,const u_char *, u_int);
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extern void egp_print(netdissect_options *,const u_char *, u_int,
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const u_char *);
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extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *);
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extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
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extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void gre_print(netdissect_options *,const u_char *, u_int);
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extern void icmp_print(netdissect_options *,const u_char *, u_int,
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const u_char *);
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extern void hsrp_print(netdissect_options *ndo,
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register const u_char *bp, register u_int len);
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extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void igmp_print(netdissect_options *,
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register const u_char *, u_int);
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extern void igrp_print(netdissect_options *,const u_char *, u_int,
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const u_char *);
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extern int nextproto4_cksum(const struct ip *, const u_int8_t *, u_int, u_int);
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extern void ipN_print(netdissect_options *,const u_char *, u_int);
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extern void ipx_print(netdissect_options *,const u_char *, u_int);
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extern void isoclns_print(netdissect_options *,const u_char *,
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u_int, u_int, const u_char *, const u_char *);
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extern void krb_print(netdissect_options *,const u_char *, u_int);
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extern void llap_print(netdissect_options *,const u_char *, u_int);
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extern const char *linkaddr_string(netdissect_options *ndo,
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const u_char *ep, const unsigned int len);
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extern void ltalk_if_print(netdissect_options *ndo,
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u_char *user, const struct pcap_pkthdr *h,
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const u_char *p);
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extern void mpls_print(netdissect_options *ndo,
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const u_char *bp, u_int length);
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extern void msdp_print(netdissect_options *ndo,
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const unsigned char *sp, u_int length);
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extern void nfsreply_print(netdissect_options *,const u_char *,
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u_int, const u_char *);
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extern void nfsreq_print(netdissect_options *,const u_char *,
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u_int, const u_char *);
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extern void ns_print(netdissect_options *,const u_char *, u_int);
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extern void ntp_print(netdissect_options *,const u_char *, u_int);
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extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void ospf_print(netdissect_options *,const u_char *,
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u_int, const u_char *);
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extern void pimv1_print(netdissect_options *,const u_char *, u_int);
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extern void mobile_print(netdissect_options *,const u_char *, u_int);
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extern void pim_print(netdissect_options *,const u_char *, u_int, u_int);
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extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void pppoe_print(netdissect_options *,const u_char *, u_int);
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extern void ppp_print(netdissect_options *,
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register const u_char *, u_int);
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extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void ppp_hdlc_if_print(u_char *,
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const struct pcap_pkthdr *, const u_char *);
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extern void ppp_bsdos_if_print(u_char *,
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const struct pcap_pkthdr *, const u_char *);
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extern int vjc_print(netdissect_options *,register const char *,
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register u_int, u_short);
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extern void raw_if_print(u_char *,
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const struct pcap_pkthdr *, const u_char *);
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extern void rip_print(netdissect_options *,const u_char *, u_int);
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extern void rpki_rtr_print(netdissect_options *,const u_char *, u_int);
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extern void sctp_print(netdissect_options *ndo,
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const u_char *bp, const u_char *bp2,
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u_int sctpPacketLength);
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extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
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extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
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extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
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extern void sl_bsdos_if_print(u_char *,
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const struct pcap_pkthdr *, const u_char *);
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extern void sll_if_print(u_char *,
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const struct pcap_pkthdr *, const u_char *);
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extern void snmp_print(netdissect_options *,const u_char *, u_int);
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extern void sunrpcrequest_print(netdissect_options *,const u_char *,
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u_int, const u_char *);
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extern void tcp_print(netdissect_options *,const u_char *, u_int,
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const u_char *, int);
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extern void tftp_print(netdissect_options *,const u_char *, u_int);
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extern void timed_print(netdissect_options *,const u_char *, u_int);
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extern void udp_print(netdissect_options *,const u_char *, u_int,
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const u_char *, int);
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extern void wb_print(netdissect_options *,const void *, u_int);
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extern int ah_print(netdissect_options *,register const u_char *,
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register const u_char *);
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extern void esp_print_decodesecret(netdissect_options *ndo);
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extern int ipcomp_print(netdissect_options *,register const u_char *,
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register const u_char *, int *);
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extern void rx_print(netdissect_options *,register const u_char *,
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int, int, int, u_char *);
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extern void netbeui_print(netdissect_options *,u_short,
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const u_char *, int);
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extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int);
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extern void nbt_tcp_print(netdissect_options *,const u_char *, int);
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extern void nbt_udp137_print(netdissect_options *,
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const u_char *data, int);
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extern void nbt_udp138_print(netdissect_options *,
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const u_char *data, int);
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extern char *smb_errstr(netdissect_options *,int, int);
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extern const char *nt_errstr(netdissect_options *, u_int32_t);
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extern void print_data(netdissect_options *,const unsigned char *, int);
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extern void l2tp_print(netdissect_options *,const u_char *, u_int);
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extern void lcp_print(netdissect_options *,const u_char *, u_int);
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extern void vrrp_print(netdissect_options *,const u_char *bp,
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u_int len, int ttl);
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extern void carp_print(netdissect_options *,const u_char *bp,
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u_int len, int ttl);
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extern void cdp_print(netdissect_options *,const u_char *,
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u_int, u_int, const u_char *, const u_char *);
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extern void stp_print(netdissect_options *,const u_char *p, u_int length);
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extern void radius_print(netdissect_options *,const u_char *, u_int);
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extern void lwres_print(netdissect_options *,const u_char *, u_int);
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extern void pptp_print(netdissect_options *,const u_char *, u_int);
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#endif
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extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
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extern u_int ppi_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
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extern u_int ieee802_15_4_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
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#ifdef INET6
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extern void ip6_print(netdissect_options *,const u_char *, u_int);
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#if 0
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extern void ip6_opt_print(netdissect_options *,const u_char *, int);
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extern int nextproto6_cksum(const struct ip6_hdr *, const u_int8_t *, u_int, u_int);
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extern int hbhopt_print(netdissect_options *,const u_char *);
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extern int dstopt_print(netdissect_options *,const u_char *);
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extern int frag6_print(netdissect_options *,const u_char *,
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const u_char *);
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extern void icmp6_print(netdissect_options *,const u_char *,
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const u_char *);
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extern void ripng_print(netdissect_options *,const u_char *, int);
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extern int rt6_print(netdissect_options *,const u_char *, const u_char *);
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extern void ospf6_print(netdissect_options *,const u_char *, u_int);
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extern void dhcp6_print(netdissect_options *,const u_char *,
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u_int, u_int16_t, u_int16_t);
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extern void zephyr_print(netdissect_options * ndo,
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const u_char *cp, int length);
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#endif /* 0 */
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#endif /*INET6*/
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#if 0
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struct cksum_vec {
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const u_int8_t *ptr;
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int len;
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};
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extern u_int16_t in_cksum(const struct cksum_vec *, int);
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extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
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#endif
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extern void esp_print_decodesecret(netdissect_options *ndo);
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extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
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int initiator,
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u_char spii[8], u_char spir[8],
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u_char *buf, u_char *end);
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#endif /* netdissect_h */
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