2003-10-28 06:44:21 +00:00
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/* packet-tpcp.c
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* Routines for Transparent Proxy Cache Protocol packet disassembly
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2004-02-23 16:33:14 +00:00
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* (c) Copyright Giles Scott <giles.scott1 [AT] btinternet.com>
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2003-10-28 06:44:21 +00:00
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*
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2004-07-18 00:24:25 +00:00
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* $Id$
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2003-10-28 06:44:21 +00:00
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*
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2006-05-21 04:49:01 +00:00
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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2003-10-28 06:44:21 +00:00
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* Copyright 1998 Gerald Combs
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2011-09-21 23:42:55 +00:00
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*
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2003-10-28 06:44:21 +00:00
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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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2011-09-21 23:42:55 +00:00
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*
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2003-10-28 06:44:21 +00:00
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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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2011-09-21 23:42:55 +00:00
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*
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2003-10-28 06:44:21 +00:00
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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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2012-06-28 22:56:06 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2003-10-28 06:44:21 +00:00
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*/
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2012-09-20 02:03:38 +00:00
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#include "config.h"
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2003-10-28 06:44:21 +00:00
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2010-08-05 07:09:59 +00:00
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#include <string.h>
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2003-10-28 06:44:21 +00:00
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#include <glib.h>
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2012-05-15 19:23:35 +00:00
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2003-10-28 06:44:21 +00:00
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#include <epan/packet.h>
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2004-08-06 19:57:49 +00:00
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#include <epan/addr_resolv.h> /* this is for get_hostname and get_udp_port */
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2003-10-28 06:44:21 +00:00
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2013-12-14 16:09:57 +00:00
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void proto_register_tpcp(void);
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void proto_reg_handoff_tpcp(void);
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2011-09-21 23:42:55 +00:00
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#define UDP_PORT_TPCP 3121
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2003-10-28 06:44:21 +00:00
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/* TPCP version1/2 PDU format */
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typedef struct _tpcppdu_t {
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2011-10-12 17:30:31 +00:00
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guint8 version; /* PDU version 1 */
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guint8 type; /* PDU type: 1=request, 2=reply, 3=add filter, 4=rem filter */
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/* Version 2 adds 5=add session 6= remove session */
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guint16 flags; /* 0x0001: 0=UDP, 1=TCP*/
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/* 0x0002: 0=NONE, 1=DONT REDIRECT */
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/* 0x0004: 0=NONE, 1=Xon */
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/* 0x0008: 0=NONE, 1=Xoff */
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guint16 id; /* request/response identification or TTL */
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guint16 cport; /* client UDP or TCP port number */
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guint32 caddr; /* client IPv4 address */
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guint32 saddr; /* server IPV4 address */
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2003-10-28 06:44:21 +00:00
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/* tpcp version 2 only*/
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2011-10-12 17:30:31 +00:00
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guint32 vaddr; /* Virtual Server IPv4 address */
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guint32 rasaddr; /* RAS server IPv4 address */
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guint32 signature; /* 0x74706370 - tpcp */
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2003-10-28 06:44:21 +00:00
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} tpcpdu_t;
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static const value_string type_vals[] = {
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{ 1, "Request" },
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{ 2, "Reply" },
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{ 3, "Add Filter" },
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{ 4, "Remove Filter" },
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/* 5 and 6 are for version 2 only */
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{ 5, "Add Session" },
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{ 6, "Remove Session" },
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{ 0, NULL }
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};
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/* TPCP Flags */
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#define TF_TPCP_UDPTCP 0x0001
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#define TF_TPCP_DONTREDIRECT 0x0002
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#define TF_TPCP_XON 0x0004
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#define TF_TPCP_XOFF 0x0008
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/* Version info */
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#define TPCP_VER_1 1
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#define TPCP_VER_2 2
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2012-05-15 19:23:35 +00:00
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2003-10-28 06:44:21 +00:00
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#define TPCP_VER_1_LENGTH 16
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#define TPCP_VER_2_LENGTH 28
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/* things we can do filters on */
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static int hf_tpcp_version = -1;
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static int hf_tpcp_type = -1;
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static int hf_tpcp_flags_tcp = -1;
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static int hf_tpcp_flags_redir = -1;
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static int hf_tpcp_flags_xon = -1;
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static int hf_tpcp_flags_xoff = -1;
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static int hf_tpcp_id = -1;
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static int hf_tpcp_cport = -1;
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static int hf_tpcp_caddr = -1;
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static int hf_tpcp_saddr = -1;
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static int hf_tpcp_vaddr = -1;
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static int hf_tpcp_rasaddr = -1;
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static int proto_tpcp = -1;
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static gint ett_tpcp = -1;
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static gint ett_tpcp_flags = -1;
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2011-09-21 23:42:55 +00:00
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static void
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2003-10-28 06:44:21 +00:00
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dissect_tpcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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2012-05-15 19:23:35 +00:00
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tpcpdu_t tpcph;
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2003-10-28 06:44:21 +00:00
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proto_tree *tpcp_tree = NULL, *field_tree = NULL;
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proto_item *ti, *tf;
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2012-05-15 19:23:35 +00:00
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guint8 length = TPCP_VER_1_LENGTH;
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2011-09-21 23:42:55 +00:00
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2009-08-09 06:26:46 +00:00
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "TPCP");
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2009-08-09 07:36:13 +00:00
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col_clear(pinfo->cinfo, COL_INFO);
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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/* need to find out which version!! */
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tpcph.version = tvb_get_guint8(tvb, 0);
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/* as version 1 and 2 are so similar use the same structure, just don't use as much for version 1*/
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2012-05-15 19:23:35 +00:00
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/* XXX: Doing a memcpy into a struct is *not* kosher */
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2003-10-28 06:44:21 +00:00
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if (tpcph.version == TPCP_VER_1) {
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length = TPCP_VER_1_LENGTH;
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tvb_memcpy(tvb, (guint8 *) &tpcph, 0, length);
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} else if (tpcph.version == TPCP_VER_2){
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length = TPCP_VER_2_LENGTH;
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tvb_memcpy(tvb, (guint8 *) &tpcph, 0, length);
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2010-08-05 07:09:59 +00:00
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} else {
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memset (&tpcph, 0, sizeof (tpcph));
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2003-10-28 06:44:21 +00:00
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}
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2011-09-21 23:42:55 +00:00
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2011-10-12 17:30:31 +00:00
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tpcph.id = g_ntohs(tpcph.id);
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tpcph.flags = g_ntohs(tpcph.flags);
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tpcph.cport = g_ntohs(tpcph.cport);
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2012-05-15 19:23:35 +00:00
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tpcph.signature = g_ntohl(tpcph.signature);
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2011-09-21 23:42:55 +00:00
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2013-06-14 01:56:28 +00:00
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col_add_fstr(pinfo->cinfo, COL_INFO,"%s id %d CPort %s CIP %s SIP %s",
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2012-08-10 22:55:02 +00:00
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val_to_str_const(tpcph.type, type_vals, "Unknown"),
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2003-10-28 06:44:21 +00:00
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tpcph.id,
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get_udp_port(tpcph.cport),
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ip_to_str((guint8 *)&tpcph.caddr),
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ip_to_str((guint8 *)&tpcph.saddr));
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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if (tree) {
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ti = proto_tree_add_protocol_format(tree, proto_tpcp, tvb, 0, length,
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"Alteon WebSystems - Transparent Proxy Cache Protocol");
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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tpcp_tree = proto_item_add_subtree(ti, ett_tpcp);
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2011-09-21 23:42:55 +00:00
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2011-10-12 17:30:31 +00:00
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proto_tree_add_uint(tpcp_tree, hf_tpcp_version, tvb, 0, 1, tpcph.version);
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2013-09-16 10:39:06 +00:00
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proto_tree_add_uint(tpcp_tree, hf_tpcp_type, tvb, 1, 1, tpcph.type);
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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/* flags next , i'll do that when I can work out how to do it :-( */
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tf = proto_tree_add_text(tpcp_tree, tvb, 2, 2, "Flags: 0x%04x",tpcph.flags);
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2011-09-21 23:42:55 +00:00
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field_tree = proto_item_add_subtree(tf, ett_tpcp_flags);
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2003-10-28 06:44:21 +00:00
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proto_tree_add_boolean(field_tree, hf_tpcp_flags_tcp, tvb, 2, 2, tpcph.flags);
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proto_tree_add_boolean(field_tree, hf_tpcp_flags_redir, tvb, 2,2, tpcph.flags);
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proto_tree_add_boolean(field_tree, hf_tpcp_flags_xon, tvb, 2, 2, tpcph.flags);
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proto_tree_add_boolean(field_tree, hf_tpcp_flags_xoff, tvb, 2, 2, tpcph.flags);
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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proto_tree_add_uint(tpcp_tree, hf_tpcp_id, tvb, 4, 2, tpcph.id);
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2011-09-21 23:42:55 +00:00
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2013-09-16 10:39:06 +00:00
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proto_tree_add_uint_format_value(tpcp_tree, hf_tpcp_cport, tvb, 6, 2, tpcph.cport,
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"%s", get_udp_port(tpcph.cport));
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2011-09-21 23:42:55 +00:00
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proto_tree_add_ipv4(tpcp_tree, hf_tpcp_caddr, tvb, 8, 4, tpcph.caddr);
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proto_tree_add_ipv4(tpcp_tree, hf_tpcp_saddr, tvb, 12, 4, tpcph.saddr);
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2003-10-28 06:44:21 +00:00
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if (tpcph.version == TPCP_VER_2) {
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2011-09-21 23:42:55 +00:00
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proto_tree_add_ipv4(tpcp_tree, hf_tpcp_vaddr, tvb, 16, 4, tpcph.vaddr);
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proto_tree_add_ipv4(tpcp_tree, hf_tpcp_rasaddr, tvb, 20, 4, tpcph.rasaddr);
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2003-10-28 06:44:21 +00:00
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proto_tree_add_text(tpcp_tree, tvb, 24, 4, "Signature: %u", tpcph.signature);
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}
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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}
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}
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void
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proto_register_tpcp(void)
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{
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static hf_register_info hf[] = {
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{ &hf_tpcp_version,
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{ "Version", "tpcp.version", FT_UINT8, BASE_DEC, NULL, 0x0,
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"TPCP version", HFILL }},
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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{ &hf_tpcp_type,
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2013-09-16 10:39:06 +00:00
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{ "Type", "tpcp.type", FT_UINT8, BASE_DEC, VALS(type_vals), 0x0,
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2003-10-28 06:44:21 +00:00
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"PDU type", HFILL }},
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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{ &hf_tpcp_flags_tcp,
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2009-07-07 14:54:15 +00:00
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{ "UDP/TCP", "tpcp.flags.tcp", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_UDPTCP,
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2003-10-28 06:44:21 +00:00
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"Protocol type", HFILL }},
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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{ &hf_tpcp_flags_redir,
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2009-07-07 14:54:15 +00:00
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{ "No Redirect", "tpcp.flags.redir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_DONTREDIRECT,
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2003-10-28 06:44:21 +00:00
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"Don't redirect client", HFILL }},
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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{ &hf_tpcp_flags_xon,
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2009-07-07 14:54:15 +00:00
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{ "XON", "tpcp.flags.xon", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_XON,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
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NULL, HFILL }},
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2011-09-21 23:42:55 +00:00
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2003-10-28 06:44:21 +00:00
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{ &hf_tpcp_flags_xoff,
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2009-07-07 14:54:15 +00:00
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{ "XOFF", "tpcp.flags.xoff", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_XOFF,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
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|
2003-10-28 06:44:21 +00:00
|
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|
{ &hf_tpcp_id,
|
|
|
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{ "Client indent", "tpcp.cid", FT_UINT16, BASE_DEC, NULL, 0x0,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
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|
|
2003-10-28 06:44:21 +00:00
|
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|
{ &hf_tpcp_cport,
|
|
|
|
{ "Client Source Port", "tpcp.cport", FT_UINT16, BASE_DEC, NULL, 0x0,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2003-10-28 06:44:21 +00:00
|
|
|
{ &hf_tpcp_caddr,
|
|
|
|
{ "Client Source IP address", "tpcp.caddr", FT_IPv4, BASE_NONE, NULL, 0x0,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2003-10-28 06:44:21 +00:00
|
|
|
{ &hf_tpcp_saddr,
|
|
|
|
{ "Server IP address", "tpcp.saddr", FT_IPv4, BASE_NONE, NULL, 0x0,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2003-10-28 06:44:21 +00:00
|
|
|
{ &hf_tpcp_vaddr,
|
|
|
|
{ "Virtual Server IP address", "tpcp.vaddr", FT_IPv4, BASE_NONE, NULL, 0x0,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2003-10-28 06:44:21 +00:00
|
|
|
{ &hf_tpcp_rasaddr,
|
|
|
|
{ "RAS server IP address", "tpcp.rasaddr", FT_IPv4, BASE_NONE, NULL, 0x0,
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
NULL, HFILL }},
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2003-10-28 06:44:21 +00:00
|
|
|
};
|
2011-09-21 23:42:55 +00:00
|
|
|
|
|
|
|
|
2012-05-15 19:23:35 +00:00
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_tpcp,
|
|
|
|
&ett_tpcp_flags,
|
|
|
|
};
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2012-05-15 19:23:35 +00:00
|
|
|
proto_tpcp = proto_register_protocol("Alteon - Transparent Proxy Cache Protocol",
|
|
|
|
"TPCP", "tpcp");
|
|
|
|
proto_register_field_array(proto_tpcp, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
2003-10-28 06:44:21 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_tpcp(void)
|
|
|
|
{
|
2012-05-15 19:23:35 +00:00
|
|
|
dissector_handle_t tpcp_handle;
|
2011-09-21 23:42:55 +00:00
|
|
|
|
2012-05-15 19:23:35 +00:00
|
|
|
tpcp_handle = create_dissector_handle(dissect_tpcp, proto_tpcp);
|
|
|
|
dissector_add_uint("udp.port", UDP_PORT_TPCP, tpcp_handle);
|
2003-10-28 06:44:21 +00:00
|
|
|
}
|