65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
/* packet-tcp.h
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*
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* $Id: packet-tcp.h,v 1.12 2002/08/28 21:00:36 jmayer Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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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_TCP_H__
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#define __PACKET_TCP_H__
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/*
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* Private data passed from the TCP dissector to subdissectors.
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*/
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struct tcpinfo {
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guint32 seq; /* Sequence number of first byte in the data */
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gboolean is_reassembled; /* This is reassembled data. */
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gboolean urgent; /* TRUE if "urgent_pointer" is valid */
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guint16 urgent_pointer; /* Urgent pointer value for the current packet. */
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};
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/*
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* Loop for dissecting PDUs within a TCP stream; assumes that a PDU
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* consists of a fixed-length chunk of data that contains enough information
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* to determine the length of the PDU, followed by rest of the PDU.
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*
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* The first three arguments are the arguments passed to the dissector
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* that calls this routine.
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*
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* "proto_desegment" is the dissector's flag controlling whether it should
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* desegment PDUs that cross TCP segment boundaries.
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*
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* "fixed_len" is the length of the fixed-length part of the PDU.
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*
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* "get_pdu_len()" is a routine called to get the length of the PDU from
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* the fixed-length part of the PDU; it's passed "tvb" and "offset".
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*
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* "dissect_pdu()" is the routine to dissect a PDU.
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*/
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extern void
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tcp_dissect_pdus(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
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gboolean proto_desegment, guint fixed_len,
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guint (*get_pdu_len)(tvbuff_t *, int),
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void (*dissect_pdu)(tvbuff_t *, packet_info *, proto_tree *));
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extern void decode_tcp_ports(tvbuff_t *, int, packet_info *,
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proto_tree *, int, int);
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#endif
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