forked from osmocom/wireshark
546 lines
18 KiB
C
546 lines
18 KiB
C
/* packet.h
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* Definitions for packet disassembly structures and routines
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*
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* $Id: packet.h,v 1.93 1999/09/03 00:38:49 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PACKET_H__
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#define __PACKET_H__
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#ifndef __WTAP_H__
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#include "wiretap/wtap.h"
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#endif
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#ifndef __PROTO_H__
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#include "proto.h"
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#endif
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/* Pointer versions of ntohs and ntohl. Given a pointer to a member of a
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* byte array, returns the value of the two or four bytes at the pointer.
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* The pletoh[sl] versions return the little-endian representation.
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*/
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#define pntohs(p) ((guint16) \
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((guint16)*((guint8 *)p+0)<<8| \
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(guint16)*((guint8 *)p+1)<<0))
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#define pntohl(p) ((guint32)*((guint8 *)p+0)<<24| \
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(guint32)*((guint8 *)p+1)<<16| \
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(guint32)*((guint8 *)p+2)<<8| \
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(guint32)*((guint8 *)p+3)<<0)
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#define pletohs(p) ((guint16) \
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((guint16)*((guint8 *)p+1)<<8| \
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(guint16)*((guint8 *)p+0)<<0))
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#define pletohl(p) ((guint32)*((guint8 *)p+3)<<24| \
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(guint32)*((guint8 *)p+2)<<16| \
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(guint32)*((guint8 *)p+1)<<8| \
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(guint32)*((guint8 *)p+0)<<0)
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#define hi_nibble(b) ((b & 0xf0) >> 4)
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#define lo_nibble(b) (b & 0x0f)
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/* Byte ordering */
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#ifndef BYTE_ORDER
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#define LITTLE_ENDIAN 4321
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#define BIG_ENDIAN 1234
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#ifdef WORDS_BIGENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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/* Useful when you have an array whose size you can tell at compile-time */
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#define array_length(x) (sizeof x / sizeof x[0])
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/* Useful when highlighting regions inside a dissect_*() function. With this
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* macro, you can highlight from an arbitrary offset to the end of the
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* packet (which may come before the end of the frame).
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* See dissect_data() for an example.
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*/
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#define END_OF_FRAME (pi.captured_len - offset)
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/* To pass one of two strings, singular or plural */
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#define plurality(d,s,p) ((d) == 1 ? (s) : (p))
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typedef struct _column_info {
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gint num_cols; /* Number of columns */
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gint *col_fmt; /* Format of column */
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gboolean **fmt_matx; /* Specifies which formats apply to a column */
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gint *col_width; /* Column widths to use during a "-S" capture */
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gchar **col_data; /* Column data */
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} column_info;
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#define COL_MAX_LEN 256
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typedef struct _packet_counts {
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gint tcp;
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gint udp;
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gint icmp;
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gint ospf;
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gint gre;
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gint netbios;
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gint other;
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gint total;
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} packet_counts;
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typedef struct _frame_data {
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struct _frame_data *next; /* Next element in list */
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guint32 pkt_len; /* Packet length */
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guint32 cap_len; /* Amount actually captured */
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guint32 rel_secs; /* Relative seconds */
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guint32 rel_usecs; /* Relative microseconds */
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guint32 abs_secs; /* Absolute seconds */
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guint32 abs_usecs; /* Absolute microseconds */
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guint32 del_secs; /* Delta seconds */
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guint32 del_usecs; /* Delta microseconds */
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long file_off; /* File offset */
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column_info *cinfo; /* Column formatting information */
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gint row; /* Row number for this packet in the display */
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int lnk_t; /* Per-packet encapsulation/data-link type */
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gboolean passed_dfilter; /* TRUE = display, FALSE = no display */
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union pseudo_header pseudo_header; /* "pseudo-header" from wiretap */
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} frame_data;
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typedef struct _packet_info {
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int len;
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int captured_len;
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guint32 ip_src;
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guint32 ip_dst;
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guint32 ipproto;
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guint32 srcport;
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guint32 destport;
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guint32 match_port;
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int iplen;
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int iphdrlen;
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} packet_info;
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extern packet_info pi;
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/* Struct for the match_strval function */
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typedef struct _value_string {
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guint32 value;
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gchar *strptr;
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} value_string;
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/* Many of the structs and definitions below and in packet-*.c files
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* were taken from include files in the Linux distribution. */
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typedef struct tcp_extra_data {
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int match_port;
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int sport;
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int dport;
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} tcp_extra_data;
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/* Tree types. Each dissect_* routine should have one for each
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add_subtree() call. */
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enum {
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ETT_NONE,
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ETT_FRAME,
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ETT_IEEE8023,
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ETT_ETHER2,
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ETT_LLC,
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ETT_TOKEN_RING,
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ETT_TOKEN_RING_AC,
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ETT_TOKEN_RING_FC,
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ETT_TR_IERR_CNT,
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ETT_TR_NERR_CNT,
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ETT_TR_MAC,
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ETT_PPP,
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ETT_ARP,
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ETT_FDDI,
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ETT_NULL,
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ETT_IP,
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ETT_IP_OPTIONS,
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ETT_IP_OPTION_SEC,
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ETT_IP_OPTION_ROUTE,
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ETT_IP_OPTION_TIMESTAMP,
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ETT_IP_TOS,
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ETT_IP_OFF,
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ETT_UDP,
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ETT_TCP,
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ETT_TCP_OPTIONS,
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ETT_TCP_OPTION_SACK,
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ETT_TCP_FLAGS,
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ETT_ICMP,
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ETT_IGMP,
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ETT_IPX,
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ETT_SPX,
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ETT_NCP,
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ETT_NCP_REQUEST_FIELDS,
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ETT_NCP_REPLY_FIELDS,
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ETT_DNS,
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ETT_DNS_FLAGS,
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ETT_DNS_QRY,
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ETT_DNS_QD,
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ETT_DNS_ANS,
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ETT_DNS_RR,
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ETT_ISAKMP,
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ETT_ISAKMP_FLAGS,
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ETT_ISAKMP_PAYLOAD,
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ETT_RIP,
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ETT_RIP_VEC,
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ETT_OSPF,
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ETT_OSPF_HDR,
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ETT_OSPF_HELLO,
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ETT_OSPF_DESC,
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ETT_OSPF_LSR,
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ETT_OSPF_LSA_UPD,
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ETT_OSPF_LSA,
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ETT_LPD,
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ETT_RAW,
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ETT_CLIP,
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ETT_BOOTP,
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ETT_BOOTP_OPTION,
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ETT_IPv6,
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ETT_CLNP,
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ETT_COTP,
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ETT_VINES_FRP,
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ETT_VINES,
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ETT_VINES_ARP,
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ETT_VINES_ICP,
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ETT_VINES_IPC,
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ETT_VINES_RTP,
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ETT_VINES_SPP,
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ETT_IPXRIP,
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ETT_IPXSAP,
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ETT_IPXSAP_SERVER,
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ETT_NBNS,
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ETT_NBNS_FLAGS,
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ETT_NBNS_NB_FLAGS,
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ETT_NBNS_NAME_FLAGS,
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ETT_NBNS_QRY,
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ETT_NBNS_QD,
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ETT_NETB,
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ETT_NETB_FLAGS,
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ETT_NETB_NAME,
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ETT_NBNS_ANS,
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ETT_NBNS_RR,
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ETT_NBIPX,
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ETT_NBIPX_NAME_TYPE_FLAGS,
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ETT_AARP,
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ETT_GIOP,
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ETT_NBDGM,
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ETT_CDP,
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ETT_CDP_TLV,
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ETT_HTTP,
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ETT_TFTP,
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ETT_AH,
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ETT_ESP,
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ETT_ICMPv6,
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ETT_ICMPv6OPT,
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ETT_ICMPv6FLAG,
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ETT_POP,
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ETT_FTP,
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ETT_TELNET,
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ETT_TELNET_SUBOPT,
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ETT_NNTP,
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ETT_SNMP,
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ETT_NBSS,
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ETT_NBSS_FLAGS,
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ETT_SMB,
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ETT_SMB_FLAGS,
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ETT_SMB_FLAGS2,
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ETT_SMB_DIALECTS,
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ETT_SMB_MODE,
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ETT_SMB_CAPABILITIES,
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ETT_SMB_RAWMODE,
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ETT_SMB_AFLAGS,
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ETT_SMB_DESIREDACCESS,
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ETT_SMB_SEARCH,
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ETT_SMB_FILE,
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ETT_SMB_OPENFUNCTION,
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ETT_SMB_FILEATTRIBUTES,
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ETT_SMB_FILETYPE,
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ETT_SMB_ACTION,
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ETT_PPTP,
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ETT_GRE,
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ETT_GRE_FLAGS,
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ETT_PPPOED,
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ETT_PPPOED_TAGS,
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ETT_PPPOES,
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ETT_LCP,
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ETT_LCP_OPTIONS,
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ETT_LCP_MRU_OPT,
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ETT_LCP_ASYNC_MAP_OPT,
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ETT_LCP_AUTHPROT_OPT,
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ETT_LCP_QUALPROT_OPT,
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ETT_LCP_MAGICNUM_OPT,
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ETT_LCP_FCS_ALTERNATIVES_OPT,
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ETT_LCP_NUMBERED_MODE_OPT,
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ETT_LCP_CALLBACK_OPT,
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ETT_LCP_MULTILINK_EP_DISC_OPT,
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ETT_LCP_INTERNATIONALIZATION_OPT,
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ETT_IPCP,
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ETT_IPCP_OPTIONS,
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ETT_IPCP_IPADDRS_OPT,
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ETT_IPCP_COMPRESSPROT_OPT,
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ETT_RSVP,
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ETT_RSVP_UNKNOWN_CLASS,
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ETT_RSVP_HDR,
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ETT_RSVP_SESSION,
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ETT_RSVP_SGROUP,
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ETT_RSVP_HOP,
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ETT_RSVP_INTEGRITY,
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ETT_RSVP_TIME_VALUES,
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ETT_RSVP_ERROR,
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ETT_RSVP_SCOPE,
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ETT_RSVP_STYLE,
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ETT_RSVP_FLOWSPEC,
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ETT_RSVP_FILTER_SPEC,
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ETT_RSVP_SENDER_TEMPLATE,
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ETT_RSVP_SENDER_TSPEC,
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ETT_RSVP_ADSPEC,
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ETT_RSVP_POLICY,
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ETT_RSVP_CONFIRM,
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ETT_RSVP_ADSPEC_SUBTREE1,
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ETT_RSVP_ADSPEC_SUBTREE2,
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ETT_RSVP_ADSPEC_SUBTREE3,
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ETT_RTSP,
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ETT_SDP,
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ETT_RADIUS,
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ETT_RADIUS_AVP,
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ETT_LAPB,
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ETT_X25,
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ETT_XDLC_CONTROL,
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ETT_ATM,
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ETT_ATM_LANE,
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ETT_ATM_LANE_LC_FLAGS,
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ETT_ATM_LANE_LC_LAN_DEST,
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ETT_ATM_LANE_LC_LAN_DEST_RD,
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NUM_TREE_TYPES /* last item number plus one */
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};
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/* Utility routines used by packet*.c */
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gchar* ether_to_str(const guint8 *);
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gchar* ip_to_str(const guint8 *);
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gchar* abs_time_to_str(struct timeval*);
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gchar* time_secs_to_str(guint32);
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gchar* bytes_to_str(const guint8 *, int);
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const u_char *find_line_end(const u_char *data, const u_char *dataend,
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const u_char **eol);
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int get_token_len(const u_char *linep, const u_char *lineend,
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const u_char **next_token);
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gchar* format_text(const u_char *line, int len);
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gchar* val_to_str(guint32, const value_string *, const char *);
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gchar* match_strval(guint32, const value_string*);
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const char *decode_boolean_bitfield(guint32 val, guint32 mask, int width,
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const char *truedesc, const char *falsedesc);
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const char *decode_enumerated_bitfield(guint32 val, guint32 mask, int width,
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const value_string *tab, const char *fmt);
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const char *decode_numeric_bitfield(guint32 val, guint32 mask, int width,
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const char *fmt);
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gint check_col(frame_data *, gint);
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#if __GNUC__ == 2
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void col_add_fstr(frame_data *, gint, gchar *, ...)
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__attribute__((format (printf, 3, 4)));
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void col_append_fstr(frame_data *, gint, gchar *, ...)
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__attribute__((format (printf, 3, 4)));
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#else
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void col_add_fstr(frame_data *, gint, gchar *, ...);
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void col_append_fstr(frame_data *, gint, gchar *, ...);
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#endif
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void col_add_str(frame_data *, gint, const gchar *);
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void col_append_str(frame_data *, gint, gchar *);
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void dissect_packet(const u_char *, frame_data *, proto_tree *);
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/*
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* Routines in packet-*.c
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* Routines should take three args: packet data *, cap_len, packet_counts *
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* They should never modify the packet data.
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*/
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void capture_clip(const u_char *, guint32, packet_counts *);
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void capture_eth(const u_char *, guint32, packet_counts *);
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void capture_fddi(const u_char *, guint32, packet_counts *);
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void capture_null(const u_char *, guint32, packet_counts *);
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void capture_ppp(const u_char *, guint32, packet_counts *);
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void capture_raw(const u_char *, guint32, packet_counts *);
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void capture_tr(const u_char *, guint32, packet_counts *);
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/*
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* Routines in packet-*.c
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* Routines should take four args: packet data *, offset, cap_len,
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* packet_counts *
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* They should never modify the packet data.
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*/
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void capture_netbios(const u_char *, int, guint32, packet_counts *);
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void capture_llc(const u_char *, int, guint32, packet_counts *);
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void capture_ip(const u_char *, int, guint32, packet_counts *);
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/*
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* Routines in packet-*.c
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* Routines should take three args: packet data *, frame_data *, tree *
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* They should never modify the packet data.
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*/
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void dissect_atm(const u_char *, frame_data *, proto_tree *);
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void dissect_clip(const u_char *, frame_data *, proto_tree *);
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void dissect_lapb(const u_char *, frame_data *, proto_tree *);
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void dissect_null(const u_char *, frame_data *, proto_tree *);
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void dissect_ppp(const u_char *, frame_data *, proto_tree *);
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void dissect_raw(const u_char *, frame_data *, proto_tree *);
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/*
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* Routines in packet-*.c
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* Routines should take four args: packet data *, frame_data *, tree *,
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* gboolean
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* They should never modify the packet data.
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*/
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void dissect_fddi(const u_char *, frame_data *, proto_tree *, gboolean);
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/*
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* Routines in packet-*.c
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* Routines should take four args: packet data *, offset, frame_data *,
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* tree *
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* They should never modify the packet data.
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*/
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int dissect_ah(const u_char *, int, frame_data *, proto_tree *);
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void dissect_aarp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_arp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_bootp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_cdp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_cotp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_data(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ddp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_dns(const u_char *, int, frame_data *, proto_tree *);
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void dissect_esp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_eth(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ftp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ftpdata(const u_char *, int, frame_data *, proto_tree *);
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void dissect_giop(const u_char *, int, frame_data *, proto_tree *);
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void dissect_http(const u_char *, int, frame_data *, proto_tree *);
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void dissect_icmp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_icmpv6(const u_char *, int, frame_data *, proto_tree *);
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void dissect_igmp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ip(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ipv6(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ipx(const u_char *, int, frame_data *, proto_tree *);
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void dissect_llc(const u_char *, int, frame_data *, proto_tree *);
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void dissect_lpd(const u_char *, int, frame_data *, proto_tree *);
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void dissect_nbdgm(const u_char *, int, frame_data *, proto_tree *);
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void dissect_netbios(const u_char *, int, frame_data *, proto_tree *);
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void dissect_nbipx(const u_char *, int, frame_data *, proto_tree *);
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void dissect_nbns(const u_char *, int, frame_data *, proto_tree *);
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void dissect_nbss(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ncp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_nntp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_nwlink_dg(const u_char *, int, frame_data *, proto_tree *);
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void dissect_osi(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ospf(const u_char *, int, frame_data *, proto_tree *);
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void dissect_ospf_hello(const u_char *, int, frame_data *, proto_tree *);
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void dissect_pop(const u_char *, int, frame_data *, proto_tree *);
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void dissect_pppoed(const u_char *, int, frame_data *, proto_tree *);
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void dissect_pppoes(const u_char *, int, frame_data *, proto_tree *);
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void dissect_isakmp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_radius(const u_char *, int, frame_data *, proto_tree *);
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void dissect_rip(const u_char *, int, frame_data *, proto_tree *);
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void dissect_rsvp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_rtsp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_sdp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_snmp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_tcp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_telnet(const u_char *, int, frame_data *, proto_tree *);
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void dissect_tftp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_tr(const u_char *, int, frame_data *, proto_tree *);
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void dissect_trmac(const u_char *, int, frame_data *, proto_tree *);
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void dissect_udp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines_arp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines_frp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines_icp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines_ipc(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines_rtp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_vines_spp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_payload_ppp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_x25(const u_char *, int, frame_data *, proto_tree *);
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|
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void dissect_smb(const u_char *, int, frame_data *, proto_tree *, int);
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void dissect_pptp(const u_char *, int, frame_data *, proto_tree *);
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void dissect_gre(const u_char *, int, frame_data *, proto_tree *);
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|
|
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void init_dissect_udp(void);
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void init_dissect_x25(void);
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|
|
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/* These functions are in ethertype.c */
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void capture_ethertype(guint16 etype, int offset,
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const u_char *pd, guint32 cap_len, packet_counts *ld);
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void ethertype(guint16 etype, int offset,
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|
const u_char *pd, frame_data *fd, proto_tree *tree,
|
|
proto_tree *fh_tree, int item_id);
|
|
extern const value_string etype_vals[];
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|
|
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/* These functions are in packet-arp.c */
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gchar *arphrdaddr_to_str(guint8 *ad, int ad_len, guint16 type);
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gchar *arphrdtype_to_str(guint16 hwtype, const char *fmt);
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|
|
|
/*
|
|
* All of the possible columns in summary listing.
|
|
*
|
|
* NOTE: The SRC and DST entries MUST remain in this order, or else you
|
|
* need to fix the offset #defines before get_column_format!
|
|
*/
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|
enum {
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|
COL_NUMBER, /* Packet list item number */
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|
COL_CLS_TIME, /* Command line-specified time (default relative) */
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|
COL_REL_TIME, /* Relative time */
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|
COL_ABS_TIME, /* Absolute time */
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|
COL_DELTA_TIME, /* Delta time */
|
|
COL_DEF_SRC, /* Source address */
|
|
COL_RES_SRC, /* Resolved source */
|
|
COL_UNRES_SRC, /* Unresolved source */
|
|
COL_DEF_DL_SRC, /* Data link layer source address */
|
|
COL_RES_DL_SRC, /* Resolved DL source */
|
|
COL_UNRES_DL_SRC, /* Unresolved DL source */
|
|
COL_DEF_NET_SRC, /* Network layer source address */
|
|
COL_RES_NET_SRC, /* Resolved net source */
|
|
COL_UNRES_NET_SRC, /* Unresolved net source */
|
|
COL_DEF_DST, /* Destination address */
|
|
COL_RES_DST, /* Resolved dest */
|
|
COL_UNRES_DST, /* Unresolved dest */
|
|
COL_DEF_DL_DST, /* Data link layer dest address */
|
|
COL_RES_DL_DST, /* Resolved DL dest */
|
|
COL_UNRES_DL_DST, /* Unresolved DL dest */
|
|
COL_DEF_NET_DST, /* Network layer dest address */
|
|
COL_RES_NET_DST, /* Resolved net dest */
|
|
COL_UNRES_NET_DST, /* Unresolved net dest */
|
|
COL_DEF_SRC_PORT, /* Source port */
|
|
COL_RES_SRC_PORT, /* Resolved source port */
|
|
COL_UNRES_SRC_PORT, /* Unresolved source port */
|
|
COL_DEF_DST_PORT, /* Destination port */
|
|
COL_RES_DST_PORT, /* Resolved dest port */
|
|
COL_UNRES_DST_PORT, /* Unresolved dest port */
|
|
COL_PROTOCOL, /* Protocol */
|
|
COL_INFO, /* Description */
|
|
COL_PACKET_LENGTH, /* Packet length in bytes */
|
|
NUM_COL_FMTS /* Should always be last */
|
|
};
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|
|
|
#endif /* packet.h */
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