![Guy Harris](/assets/img/avatar_default.png)
const pointer (so that we don't get complaints when we make the tap-specific data argument to "tap_queue_packet()" a const pointer, allowing dissectors to hand const data to a tap without a complaint), we should make the tap per-packet function take a const pointer as an argument as well. Do so. In some taps, use _U_, or actually use the argument, rather than sticking in dummy "X = X" assignments to fake use of parameters. (This means that the tap functions in question no longer have the notion that they act on a particular static structure wired in.) svn path=/trunk/; revision=12910
571 lines
20 KiB
C
571 lines
20 KiB
C
/* h323_analysis.c
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* H323 analysis addition for ethereal
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*
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* $Id$
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*
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* Copyright 2004, Iskratel, Ltd, Kranj
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* By Miha Jemec <m.jemec@iskratel.si>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/*do not define this symbol. will be added soon*/
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/*#define USE_CONVERSATION_GRAPH 1*/
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#include "h323_analysis.h"
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#include "h323_conversations.h"
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#include "h323_conversations_dlg.h"
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#include <epan/epan_dissect.h>
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#include <epan/filesystem.h>
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#include "globals.h"
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#include "util.h"
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#include <epan/tap.h>
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#include <epan/dissectors/packet-h225.h>
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#include <epan/dissectors/packet-h245.h>
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/* in /gtk ... */
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#include "dlg_utils.h"
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#include "ui_util.h"
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#include "alert_box.h"
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#include "simple_dialog.h"
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#include "tap_menu.h"
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#include "main.h"
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#include "progress_dlg.h"
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#include "compat_macros.h"
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#include <string.h>
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/****************************************************************************/
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/* structure that holds general information about the connection */
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typedef struct _user_data_t {
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/* tap associated data*/
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guint32 ip_src;
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guint16 port_src;
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guint32 ip_dst;
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guint16 port_dst;
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guint32 ip_src_h245;
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guint16 port_src_h245;
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guint16 transport;
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GtkWidget *window;
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GtkCList *clist1;
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GtkWidget *label_stats;
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GtkCList *selected_clist1;
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gint selected_row;
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} user_data_t;
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/* Column titles. */
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static gchar *titles[7] = {
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"Packet",
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"Time",
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"Delay",
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" Side A",
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"Direction",
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" Side B",
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"Comment"
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};
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typedef const guint8 * ip_addr_p;
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static gint32 last_sec = 0, last_usec = 0;
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/****************************************************************************/
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/* TAP FUNCTIONS */
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/****************************************************************************/
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/* when there is a [re]reading of packet's */
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static void
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h225_reset(void *user_data_arg _U_)
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{
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last_sec = 0;
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last_usec = 0;
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return;
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}
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/****************************************************************************/
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/* here we can redraw the output */
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/* not used yet */
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static void h225_draw(void *prs _U_)
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{
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return;
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}
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static const GdkColor COLOR_DEFAULT = {0, 0xffff, 0xffff, 0xffff};
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static const GdkColor COLOR_ERROR = {0, 0xffff, 0xbfff, 0xbfff};
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static const GdkColor COLOR_WARNING = {0, 0xffff, 0xdfff, 0xbfff};
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static const GdkColor COLOR_CN = {0, 0xbfff, 0xbfff, 0xffff};
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/****************************************************************************/
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/* append a line to clist1 */
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static void add_to_clist1(GtkCList *clist1, guint32 number, gchar *time,
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double delay, gchar *sideA, gboolean direction, gchar *sideB,
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gchar *comment, GdkColor *color)
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{
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guint added_row;
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gchar *data[7];
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gchar field[7][32];
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data[0]=&field[0][0];
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data[1]=&field[1][0];
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data[2]=&field[2][0];
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data[3]=&field[3][0];
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data[4]=&field[4][0];
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data[5]=&field[5][0];
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data[6]=&field[6][0];
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g_snprintf(field[0], 32, "%u", number);
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g_snprintf(field[1], 32, "%s", time);
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g_snprintf(field[2], 32, "%f", delay);
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g_snprintf(field[3], 32, "%s", sideA);
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g_snprintf(field[4], 20, "%s", direction? "---->" : "<----");
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g_snprintf(field[5], 32, "%s", sideB);
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g_snprintf(field[6], 32, "%s", comment);
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added_row = gtk_clist_append(GTK_CLIST(clist1), data);
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gtk_clist_set_row_data(GTK_CLIST(clist1), added_row, GUINT_TO_POINTER(number));
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gtk_clist_set_background(GTK_CLIST(clist1), added_row, color);
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}
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/****************************************************************************/
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/* whenever a h225 packet is seen by the tap listener */
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static int h225_packet(void *user_data_arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *h225info_arg)
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{
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user_data_t *user_data = user_data_arg;
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const h225_packet_info *h225ptr_info = h225info_arg;
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GdkColor color = COLOR_DEFAULT;
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gchar timeStr[32];
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gchar message[32];
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guint32 src, dst;
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double delay;
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gint32 delay_sec, delay_usec;
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/* time since beginning of capture */
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g_snprintf(timeStr, sizeof(timeStr), "%d.%06d", pinfo->fd->rel_secs, pinfo->fd->rel_usecs);
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/* time since previous packet seen in tap listener */
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delay_sec = pinfo->fd->rel_secs - last_sec;
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delay_usec = pinfo->fd->rel_usecs - last_usec;
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delay = (double)delay_sec + ((double)delay_usec)/1000000;
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last_sec = pinfo->fd->rel_secs;
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last_usec = pinfo->fd->rel_usecs;
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switch (h225ptr_info->cs_type) {
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case H225_SETUP:
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g_snprintf(message, sizeof(message),"H225 Setup");
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break;
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case H225_CALL_PROCEDING:
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g_snprintf(message, sizeof(message),"H225 Call Proceding");
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break;
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case H225_ALERTING:
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g_snprintf(message, sizeof(message),"H225 Alerting");
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break;
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case H225_CONNECT:
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g_snprintf(message, sizeof(message),"H225 Connect");
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break;
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case H225_RELEASE_COMPLET:
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g_snprintf(message, sizeof(message),"H225 Release Complet");
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break;
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case H225_OTHER:
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g_snprintf(message, sizeof(message),"H225 Other");
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}
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g_memmove(&src, pinfo->src.data, 4);
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g_memmove(&dst, pinfo->dst.data, 4);
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if (src == user_data->ip_src)
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add_to_clist1(user_data->clist1,pinfo->fd->num,timeStr,delay,message, 1, "", "", &color);
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else
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add_to_clist1(user_data->clist1, pinfo->fd->num, timeStr,delay, "", 0, message, "", &color);
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return 0;
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}
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/****************************************************************************/
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/* whenever a h245 packet is seen by the tap listener */
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static int h245_packet(void *user_data_arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *h245info_arg)
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{
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user_data_t *user_data = user_data_arg;
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const h245_packet_info *h245ptr_info = h245info_arg;
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GdkColor color = COLOR_DEFAULT;
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gchar timeStr[32];
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gchar message[32];
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guint32 src, dst;
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double delay;
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gint32 delay_sec, delay_usec;
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/* time since beginning of capture */
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g_snprintf(timeStr, sizeof(timeStr), "%d.%06d", pinfo->fd->rel_secs, pinfo->fd->rel_usecs);
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/* time since previous packet seen in tap listener */
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delay_sec = pinfo->fd->rel_secs - last_sec;
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delay_usec = pinfo->fd->rel_usecs - last_usec;
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delay = (double)delay_sec + ((double)delay_usec)/1000000;
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last_sec = pinfo->fd->rel_secs;
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last_usec = pinfo->fd->rel_usecs;
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switch (h245ptr_info->msg_type) {
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case H245_TermCapSet:
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g_snprintf(message, sizeof(message),"H245 TermCapSet");
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break;
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case H245_TermCapSetAck:
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g_snprintf(message, sizeof(message),"H245_TermCapSetAck");
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break;
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case H245_TermCapSetRjc:
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g_snprintf(message, sizeof(message),"H245_TermCapSetRjc");
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break;
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case H245_TermCapSetRls:
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g_snprintf(message, sizeof(message),"H245_TermCapSetRls");
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break;
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case H245_OpenLogChn:
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g_snprintf(message, sizeof(message),"H245_OpenLogChn");
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break;
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case H245_OpenLogChnCnf:
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g_snprintf(message, sizeof(message),"H245_OpenLogChnCnf");
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break;
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case H245_OpenLogChnAck:
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g_snprintf(message, sizeof(message),"H245_OpenLogChnAck");
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break;
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case H245_OpenLogChnRjc:
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g_snprintf(message, sizeof(message),"H245_OpenLogChnRjc");
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break;
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case H245_CloseLogChn:
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g_snprintf(message, sizeof(message),"H245_CloseLogChn");
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break;
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case H245_CloseLogChnAck:
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g_snprintf(message, sizeof(message),"H245_CloseLogChnAck");
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break;
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case H245_MastSlvDet:
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g_snprintf(message, sizeof(message),"H245_MastSlvDet");
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break;
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case H245_MastSlvDetAck:
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g_snprintf(message, sizeof(message),"H245_MastSlvDetAck");
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break;
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case H245_MastSlvDetRjc:
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g_snprintf(message, sizeof(message),"H245_MastSlvDetRjc");
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break;
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case H245_MastSlvDetRls:
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g_snprintf(message, sizeof(message),"H245_MastSlvDetRls");
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break;
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case H245_OTHER:
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g_snprintf(message, sizeof(message),"H225 Other");
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}
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g_memmove(&src, pinfo->src.data, 4);
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g_memmove(&dst, pinfo->dst.data, 4);
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if (src == user_data->ip_src)
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add_to_clist1(user_data->clist1,pinfo->fd->num,timeStr,delay,message, 1, "", "", &color);
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else
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add_to_clist1(user_data->clist1, pinfo->fd->num, timeStr,delay, "", 0, message, "", &color);
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return 0;
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}
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/**************** Callbacks *************************************************/
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/****************************************************************************/
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/* XXX just copied from gtk/rpc_stat.c */
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void protect_thread_critical_region(void);
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void unprotect_thread_critical_region(void);
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/****************************************************************************/
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/* close the dialog window and remove the tap listener */
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static void on_destroy(GtkWidget *win _U_, user_data_t *user_data _U_)
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{
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g_free(user_data);
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}
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/****************************************************************************/
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static void on_clist_select_row(GtkCList *clist1 _U_,
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gint row _U_,
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gint column _U_,
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GdkEvent *event _U_,
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user_data_t *user_data _U_)
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{
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user_data->selected_clist1 = clist1;
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user_data->selected_row = row;
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}
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/****************************************************************************/
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static void on_goto_bt_clicked(GtkWidget *bt _U_, user_data_t *user_data _U_)
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{
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guint fnumber;
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if (user_data->selected_clist1!=NULL) {
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fnumber = GPOINTER_TO_UINT(gtk_clist_get_row_data(
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GTK_CLIST(user_data->selected_clist1), user_data->selected_row) );
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goto_frame(&cfile, fnumber);
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}
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}
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/****************************************************************************/
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/* re-dissects all packets */
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static void on_refresh_bt_clicked(GtkWidget *bt _U_, user_data_t *user_data _U_)
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{
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gchar filter_text_h225[256];
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gchar filter_text_h245[256];
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/*gchar filter_text_rtp[256];*/
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dfilter_t *sfcode;
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GString *error_string;
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/* clear the dialog box clists */
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gtk_clist_clear(GTK_CLIST(user_data->clist1));
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/* try to compile the filter for h225 */
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g_snprintf(filter_text_h225,sizeof(filter_text_h225),
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"h225 && (( ip.src==%s && %s.srcport==%u && ip.dst==%s && %s.dstport==%u ) || ( ip.src==%s && %s.srcport==%u && ip.dst==%s && %s.dstport==%u ))",
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ip_to_str((ip_addr_p)&(user_data->ip_src)),
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transport_prot_name[user_data->transport],
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user_data->port_src,
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ip_to_str((ip_addr_p)&(user_data->ip_dst)),
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transport_prot_name[user_data->transport],
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user_data->port_dst,
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ip_to_str((ip_addr_p)&(user_data->ip_dst)),
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transport_prot_name[user_data->transport],
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user_data->port_dst,
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ip_to_str((ip_addr_p)&(user_data->ip_src)),
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transport_prot_name[user_data->transport],
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user_data->port_src
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);
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if (!dfilter_compile(filter_text_h225, &sfcode)) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dfilter_error_msg);
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return;
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}
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/* try to compile the filter for h245 */
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g_snprintf(filter_text_h245,sizeof(filter_text_h245),
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"h245 && (( ip.src==%s && %s.srcport==%u ) || ( ip.dst==%s && %s.dstport==%u ))",
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ip_to_str((ip_addr_p)&(user_data->ip_src_h245)),
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transport_prot_name[user_data->transport],
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user_data->port_src_h245,
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ip_to_str((ip_addr_p)&(user_data->ip_src_h245)),
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transport_prot_name[user_data->transport],
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user_data->port_src_h245
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);
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if (!dfilter_compile(filter_text_h245, &sfcode)) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dfilter_error_msg);
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return;
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}
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/* register tap h225 listener */
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error_string = register_tap_listener("h225", user_data, filter_text_h225,
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h225_reset, h225_packet, h225_draw);
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if (error_string != NULL) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, error_string->str);
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g_string_free(error_string, TRUE);
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return;
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}
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/* register tap h245 listener */
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error_string = register_tap_listener("h245", user_data, filter_text_h245,
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NULL, h245_packet, NULL);
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if (error_string != NULL) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, error_string->str);
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g_string_free(error_string, TRUE);
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return;
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}
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/* retap all packets */
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retap_packets(&cfile);
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/* remove tap listener again */
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protect_thread_critical_region();
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remove_tap_listener(user_data);
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remove_tap_listener(user_data);
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unprotect_thread_critical_region();
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}
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/************************************************************************************/
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/************** Create the dialog box with all widgets ******************************/
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void create_h225_dialog(user_data_t* user_data)
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{
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GtkWidget *window = NULL;
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GtkWidget *clist_h225;
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/*GtkWidget *label_stats;*/
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GtkWidget *main_vb;
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GtkWidget *label;
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GtkWidget *scrolled_window;
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GtkWidget *box4, *goto_bt, *close_bt, *refresh_bt;
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GtkTooltips *tooltips = gtk_tooltips_new();
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gchar label_forward[150];
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gchar str_ip_src[16];
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gchar str_ip_dst[16];
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/* as multiple analysis windows can be opened,
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* don't use window_new_with_geom(), as that will place them on top of each other! */
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window = window_new(GTK_WINDOW_TOPLEVEL, "Ethereal: H.323 VoIP Analysis");
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gtk_window_set_default_size(GTK_WINDOW(window), 700, 350);
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/* Container for each row of widgets */
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main_vb = gtk_vbox_new(FALSE, 2);
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gtk_container_add(GTK_CONTAINER(window), main_vb);
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gtk_container_set_border_width(GTK_CONTAINER(main_vb), 2);
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gtk_widget_show(main_vb);
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strcpy(str_ip_src, ip_to_str((ip_addr_p)&user_data->ip_src));
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strcpy(str_ip_dst, ip_to_str((ip_addr_p)&user_data->ip_dst));
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g_snprintf(label_forward, 149,
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"\nAnalysing H.323 Call between %s port %u (Side A) and %s port %u (Side B)\n",
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str_ip_src, user_data->port_src, str_ip_dst, user_data->port_dst);
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/* label */
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label = gtk_label_new(label_forward);
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gtk_box_pack_start (GTK_BOX (main_vb), label, FALSE, FALSE, 0);
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/* scrolled window */
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scrolled_window = scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
|
|
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
|
|
gtk_box_pack_start (GTK_BOX (main_vb), scrolled_window, TRUE, TRUE, 0);
|
|
|
|
/* place for some statistics */
|
|
/*label_stats = gtk_label_new("\n");*/
|
|
/*gtk_box_pack_start(GTK_BOX(main_vb), label_stats, FALSE, FALSE, 0);*/
|
|
|
|
/* packet clist */
|
|
clist_h225 = gtk_clist_new_with_titles(7, titles);
|
|
gtk_container_add(GTK_CONTAINER(scrolled_window), clist_h225);
|
|
gtk_widget_show(clist_h225);
|
|
SIGNAL_CONNECT(clist_h225, "select_row", on_clist_select_row, user_data);
|
|
|
|
/* column widths and justification */
|
|
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 0, 45);
|
|
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 1, 90);
|
|
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 2, 90);
|
|
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 3, 140);
|
|
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 4, 60);
|
|
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 5, 140);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 0, GTK_JUSTIFY_CENTER);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 1, GTK_JUSTIFY_CENTER);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 2, GTK_JUSTIFY_CENTER);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 3, GTK_JUSTIFY_LEFT);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 4, GTK_JUSTIFY_CENTER);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 5, GTK_JUSTIFY_LEFT);
|
|
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 6, GTK_JUSTIFY_CENTER);
|
|
|
|
gtk_widget_show(scrolled_window);
|
|
|
|
/* buttons */
|
|
box4 = gtk_hbutton_box_new();
|
|
gtk_box_pack_start(GTK_BOX(main_vb), box4, FALSE, FALSE, 0);
|
|
gtk_container_set_border_width(GTK_CONTAINER(box4), 10);
|
|
gtk_button_box_set_layout(GTK_BUTTON_BOX (box4), GTK_BUTTONBOX_END);
|
|
gtk_button_box_set_spacing(GTK_BUTTON_BOX (box4), 10);
|
|
gtk_button_box_set_child_ipadding(GTK_BUTTON_BOX (box4), 4, 0);
|
|
gtk_widget_show(box4);
|
|
|
|
refresh_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_REFRESH);
|
|
gtk_container_add(GTK_CONTAINER(box4), refresh_bt);
|
|
gtk_widget_show(refresh_bt);
|
|
SIGNAL_CONNECT(refresh_bt, "clicked", on_refresh_bt_clicked, user_data);
|
|
gtk_tooltips_set_tip (tooltips, refresh_bt, "Refresh data", NULL);
|
|
|
|
goto_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_JUMP_TO);
|
|
gtk_container_add(GTK_CONTAINER(box4), goto_bt);
|
|
gtk_widget_show(goto_bt);
|
|
SIGNAL_CONNECT(goto_bt, "clicked", on_goto_bt_clicked, user_data);
|
|
gtk_tooltips_set_tip (tooltips, goto_bt, "Jump to the selected packet", NULL);
|
|
|
|
close_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE);
|
|
gtk_container_add(GTK_CONTAINER(box4), close_bt);
|
|
GTK_WIDGET_SET_FLAGS(close_bt, GTK_CAN_DEFAULT);
|
|
gtk_widget_show(close_bt);
|
|
gtk_tooltips_set_tip (tooltips, close_bt, "Close this dialog", NULL);
|
|
window_set_cancel_button(window, close_bt, window_cancel_button_cb);
|
|
|
|
SIGNAL_CONNECT(window, "delete_event", window_delete_event_cb, NULL);
|
|
SIGNAL_CONNECT(window, "destroy", on_destroy, user_data);
|
|
|
|
gtk_widget_show_all(window);
|
|
window_present(window);
|
|
|
|
/* some widget references need to be saved for outside use */
|
|
user_data->window = window;
|
|
user_data->clist1 = GTK_CLIST(clist_h225);
|
|
user_data->label_stats = label;
|
|
user_data->selected_clist1 = GTK_CLIST(clist_h225);
|
|
user_data->selected_row = 0;
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
void h323_analysis(
|
|
guint32 ip_src,
|
|
guint16 port_src,
|
|
guint32 ip_dst,
|
|
guint16 port_dst,
|
|
guint32 ip_src_h245,
|
|
guint16 port_src_h245,
|
|
guint16 transport
|
|
)
|
|
{
|
|
user_data_t *user_data;
|
|
|
|
/* init */
|
|
user_data = g_malloc(sizeof(user_data_t));
|
|
|
|
user_data->ip_src = ip_src;
|
|
user_data->port_src = port_src;
|
|
user_data->ip_dst = ip_dst;
|
|
user_data->port_dst = port_dst;
|
|
user_data->ip_src_h245 = ip_src_h245;
|
|
user_data->port_src_h245 = port_src_h245;
|
|
user_data->transport = transport;
|
|
|
|
/* create the dialog box */
|
|
create_h225_dialog(user_data);
|
|
|
|
/* proceed as if the Refresh button would have been pressed */
|
|
on_refresh_bt_clicked(NULL, user_data);
|
|
}
|
|
|
|
|