gtk/h323_analysis.c

   1 /* h323_analysis.c
   2  * H323 analysis addition for ethereal
   3  *
   4  * $Id$
   5  *
   6  * Copyright 2004, Iskratel, Ltd, Kranj
   7  * By Miha Jemec <m.jemec@iskratel.si>
   8  *
   9  * Ethereal - Network traffic analyzer
  10  * By Gerald Combs <gerald@ethereal.com>
  11  * Copyright 1998 Gerald Combs
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation,  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26  */
  27
  28 #ifdef HAVE_CONFIG_H
  29 #include "config.h"
  30 #endif
  31
  32 /*do not define this symbol. will be added soon*/
  33 /*#define USE_CONVERSATION_GRAPH 1*/
  34
  35 #include "h323_analysis.h"
  36 #include "h323_conversations.h"
  37 #include "h323_conversations_dlg.h"
  38
  39 #include <epan/epan_dissect.h>
  40 #include <epan/filesystem.h>
  41
  42 #include "globals.h"
  43
  44 #include "util.h"
  45 #include <epan/tap.h>
  46
  47 #include <epan/dissectors/packet-h225.h>
  48 #include <epan/dissectors/packet-h245.h>
  49
  50 /* in /gtk ... */
  51 #include "dlg_utils.h"
  52 #include "ui_util.h"
  53 #include "alert_box.h"
  54 #include "simple_dialog.h"
  55 #include "tap_menu.h"
  56 #include "main.h"
  57 #include "progress_dlg.h"
  58 #include "compat_macros.h"
  59
  60 #include <string.h>
  61
  62 /****************************************************************************/
  63 /* structure that holds general information about the connection */
  64 typedef struct _user_data_t {
  65         /* tap associated data*/
  66         guint32 ip_src;
  67         guint16 port_src;
  68         guint32 ip_dst;
  69         guint16 port_dst;
  70         guint32 ip_src_h245;
  71         guint16 port_src_h245;
  72         guint16 transport;
  73
  74         GtkWidget *window;
  75         GtkCList *clist1;
  76         GtkWidget *label_stats;
  77         GtkCList *selected_clist1;
  78         gint selected_row;
  79
  80 } user_data_t;
  81
  82 /* Column titles. */
  83 static gchar *titles[7] =  {
  84         "Packet",
  85         "Time",
  86         "Delay",
  87         "             Side A",
  88         "Direction",
  89         "             Side B",
  90         "Comment"
  91 };
  92
  93 typedef const guint8 * ip_addr_p;
  94
  95 static gint32 last_sec = 0, last_usec = 0;
  96
  97
  98 /****************************************************************************/
  99 /* TAP FUNCTIONS */
 100
 101 /****************************************************************************/
 102 /* when there is a [re]reading of packet's */
 103 static void
 104 h225_reset(void *user_data_arg _U_)
 105 {
 106         last_sec = 0;
 107         last_usec = 0;
 108         return;
 109 }
 110
 111 /****************************************************************************/
 112 /* here we can redraw the output */
 113 /* not used yet */
 114 static void h225_draw(void *prs _U_)
 115 {
 116         return;
 117 }
 118
 119
 120 static const GdkColor COLOR_DEFAULT = {0, 0xffff, 0xffff, 0xffff};
 121 static const GdkColor COLOR_ERROR = {0, 0xffff, 0xbfff, 0xbfff};
 122 static const GdkColor COLOR_WARNING = {0, 0xffff, 0xdfff, 0xbfff};
 123 static const GdkColor COLOR_CN = {0, 0xbfff, 0xbfff, 0xffff};
 124
 125 /****************************************************************************/
 126 /* append a line to clist1 */
 127 static void add_to_clist1(GtkCList *clist1, guint32 number, gchar *time,
 128                          double delay, gchar *sideA, gboolean direction, gchar *sideB,
 129                          gchar *comment, GdkColor *color)
 130 {
 131         guint added_row;
 132         gchar *data[7];
 133         gchar field[7][32];
 134
 135         data[0]=&field[0][0];
 136         data[1]=&field[1][0];
 137         data[2]=&field[2][0];
 138         data[3]=&field[3][0];
 139         data[4]=&field[4][0];
 140         data[5]=&field[5][0];
 141         data[6]=&field[6][0];
 142
 143         g_snprintf(field[0], 32, "%u", number);
 144         g_snprintf(field[1], 32, "%s", time);
 145         g_snprintf(field[2], 32, "%f", delay);
 146         g_snprintf(field[3], 32, "%s", sideA);
 147         g_snprintf(field[4], 20, "%s", direction? "---->" : "<----");
 148         g_snprintf(field[5], 32, "%s", sideB);
 149         g_snprintf(field[6], 32, "%s", comment);
 150
 151         added_row = gtk_clist_append(GTK_CLIST(clist1), data);
 152         gtk_clist_set_row_data(GTK_CLIST(clist1), added_row, GUINT_TO_POINTER(number));
 153         gtk_clist_set_background(GTK_CLIST(clist1), added_row, color);
 154 }
 155
 156
 157 /****************************************************************************/
 158 /* whenever a h225 packet is seen by the tap listener */
 159 static int h225_packet(void *user_data_arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *h225info_arg)
 160 {
 161         user_data_t *user_data = user_data_arg;
 162         const h225_packet_info *h225ptr_info = h225info_arg;
 163         GdkColor color = COLOR_DEFAULT;
 164
 165         gchar timeStr[32];
 166         gchar message[32];
 167         guint32 src, dst;
 168         double delay;
 169         gint32 delay_sec, delay_usec;
 170
 171         /* time since beginning of capture */
 172         g_snprintf(timeStr, sizeof(timeStr), "%d.%06d", pinfo->fd->rel_secs, pinfo->fd->rel_usecs);
 173
 174         /* time since previous packet seen in tap listener */
 175         delay_sec = pinfo->fd->rel_secs - last_sec;
 176         delay_usec = pinfo->fd->rel_usecs - last_usec;
 177
 178         delay = (double)delay_sec + ((double)delay_usec)/1000000;
 179
 180         last_sec = pinfo->fd->rel_secs;
 181         last_usec = pinfo->fd->rel_usecs;
 182
 183         switch (h225ptr_info->cs_type) {
 184
 185                 case H225_SETUP:
 186                         g_snprintf(message, sizeof(message),"H225 Setup");
 187                         break;
 188                 case H225_CALL_PROCEDING:
 189                         g_snprintf(message, sizeof(message),"H225 Call Proceding");
 190                         break;
 191                 case H225_ALERTING:
 192                         g_snprintf(message, sizeof(message),"H225 Alerting");
 193                         break;
 194                 case H225_CONNECT:
 195                         g_snprintf(message, sizeof(message),"H225 Connect");
 196                         break;
 197                 case H225_RELEASE_COMPLET:
 198                         g_snprintf(message, sizeof(message),"H225 Release Complet");
 199                         break;
 200                 case H225_OTHER:
 201                         g_snprintf(message, sizeof(message),"H225 Other");
 202                 }
 203
 204         g_memmove(&src, pinfo->src.data, 4);
 205         g_memmove(&dst, pinfo->dst.data, 4);
 206
 207         if (src == user_data->ip_src)
 208                 add_to_clist1(user_data->clist1,pinfo->fd->num,timeStr,delay,message, 1, "", "", &color);
 209         else
 210                 add_to_clist1(user_data->clist1, pinfo->fd->num, timeStr,delay, "", 0, message, "", &color);
 211
 212         return 0;
 213 }
 214
 215
 216 /****************************************************************************/
 217 /* whenever a h245 packet is seen by the tap listener */
 218 static int h245_packet(void *user_data_arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *h245info_arg)
 219 {
 220
 221         user_data_t *user_data = user_data_arg;
 222         const h245_packet_info *h245ptr_info = h245info_arg;
 223         GdkColor color = COLOR_DEFAULT;
 224
 225         gchar timeStr[32];
 226         gchar message[32];
 227         guint32 src, dst;
 228         double delay;
 229         gint32 delay_sec, delay_usec;
 230
 231         /* time since beginning of capture */
 232         g_snprintf(timeStr, sizeof(timeStr), "%d.%06d", pinfo->fd->rel_secs, pinfo->fd->rel_usecs);
 233
 234         /* time since previous packet seen in tap listener */
 235         delay_sec = pinfo->fd->rel_secs - last_sec;
 236         delay_usec = pinfo->fd->rel_usecs - last_usec;
 237
 238         delay = (double)delay_sec + ((double)delay_usec)/1000000;
 239
 240         last_sec = pinfo->fd->rel_secs;
 241         last_usec = pinfo->fd->rel_usecs;
 242
 243         switch (h245ptr_info->msg_type) {
 244
 245                 case H245_TermCapSet:
 246                         g_snprintf(message, sizeof(message),"H245 TermCapSet");
 247                         break;
 248                 case H245_TermCapSetAck:
 249                         g_snprintf(message, sizeof(message),"H245_TermCapSetAck");
 250                         break;
 251                 case H245_TermCapSetRjc:
 252                         g_snprintf(message, sizeof(message),"H245_TermCapSetRjc");
 253                         break;
 254                 case H245_TermCapSetRls:
 255                         g_snprintf(message, sizeof(message),"H245_TermCapSetRls");
 256                         break;
 257                 case H245_OpenLogChn:
 258                         g_snprintf(message, sizeof(message),"H245_OpenLogChn");
 259                         break;
 260                 case H245_OpenLogChnCnf:
 261                         g_snprintf(message, sizeof(message),"H245_OpenLogChnCnf");
 262                         break;
 263                 case H245_OpenLogChnAck:
 264                         g_snprintf(message, sizeof(message),"H245_OpenLogChnAck");
 265                         break;
 266                 case H245_OpenLogChnRjc:
 267                         g_snprintf(message, sizeof(message),"H245_OpenLogChnRjc");
 268                         break;
 269                 case H245_CloseLogChn:
 270                         g_snprintf(message, sizeof(message),"H245_CloseLogChn");
 271                         break;
 272                 case H245_CloseLogChnAck:
 273                         g_snprintf(message, sizeof(message),"H245_CloseLogChnAck");
 274                         break;
 275                 case H245_MastSlvDet:
 276                         g_snprintf(message, sizeof(message),"H245_MastSlvDet");
 277                         break;
 278                 case H245_MastSlvDetAck:
 279                         g_snprintf(message, sizeof(message),"H245_MastSlvDetAck");
 280                         break;
 281                 case H245_MastSlvDetRjc:
 282                         g_snprintf(message, sizeof(message),"H245_MastSlvDetRjc");
 283                         break;
 284                 case H245_MastSlvDetRls:
 285                         g_snprintf(message, sizeof(message),"H245_MastSlvDetRls");
 286                         break;
 287                 case H245_OTHER:
 288                         g_snprintf(message, sizeof(message),"H225 Other");
 289                 }
 290
 291         g_memmove(&src, pinfo->src.data, 4);
 292         g_memmove(&dst, pinfo->dst.data, 4);
 293
 294         if (src == user_data->ip_src)
 295                 add_to_clist1(user_data->clist1,pinfo->fd->num,timeStr,delay,message, 1, "", "", &color);
 296         else
 297                 add_to_clist1(user_data->clist1, pinfo->fd->num, timeStr,delay, "", 0, message, "", &color);
 298
 299         return 0;
 300 }
 301
 302
 303 /**************** Callbacks *************************************************/
 304 /****************************************************************************/
 305 /* XXX just copied from gtk/rpc_stat.c */
 306 void protect_thread_critical_region(void);
 307 void unprotect_thread_critical_region(void);
 308
 309
 310 /****************************************************************************/
 311 /* close the dialog window and remove the tap listener */
 312 static void on_destroy(GtkWidget *win _U_, user_data_t *user_data _U_)
 313 {
 314         g_free(user_data);
 315 }
 316
 317 /****************************************************************************/
 318 static void on_clist_select_row(GtkCList        *clist1 _U_,
 319                                 gint             row _U_,
 320                                 gint             column _U_,
 321                                 GdkEvent        *event _U_,
 322                                 user_data_t     *user_data _U_)
 323 {
 324         user_data->selected_clist1 = clist1;
 325         user_data->selected_row = row;
 326 }
 327
 328 /****************************************************************************/
 329 static void on_goto_bt_clicked(GtkWidget *bt _U_, user_data_t *user_data _U_)
 330 {
 331         guint fnumber;
 332
 333         if (user_data->selected_clist1!=NULL) {
 334                 fnumber = GPOINTER_TO_UINT(gtk_clist_get_row_data(
 335                         GTK_CLIST(user_data->selected_clist1), user_data->selected_row) );
 336                goto_frame(&cfile, fnumber);
 337         }
 338 }
 339
 340
 341 /****************************************************************************/
 342 /* re-dissects all packets */
 343 static void on_refresh_bt_clicked(GtkWidget *bt _U_, user_data_t *user_data _U_)
 344 {
 345         gchar filter_text_h225[256];
 346         gchar filter_text_h245[256];
 347         /*gchar filter_text_rtp[256];*/
 348         dfilter_t *sfcode;
 349         GString *error_string;
 350
 351         /* clear the dialog box clists */
 352         gtk_clist_clear(GTK_CLIST(user_data->clist1));
 353
 354         /* try to compile the filter for h225 */
 355         g_snprintf(filter_text_h225,sizeof(filter_text_h225),
 356         "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 ))",
 357                 ip_to_str((ip_addr_p)&(user_data->ip_src)),
 358                                 transport_prot_name[user_data->transport],
 359                 user_data->port_src,
 360                 ip_to_str((ip_addr_p)&(user_data->ip_dst)),
 361                                 transport_prot_name[user_data->transport],
 362                 user_data->port_dst,
 363                 ip_to_str((ip_addr_p)&(user_data->ip_dst)),
 364                                 transport_prot_name[user_data->transport],
 365                 user_data->port_dst,
 366                 ip_to_str((ip_addr_p)&(user_data->ip_src)),
 367                                 transport_prot_name[user_data->transport],
 368                 user_data->port_src
 369                 );
 370
 371         if (!dfilter_compile(filter_text_h225, &sfcode)) {
 372                 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dfilter_error_msg);
 373                 return;
 374         }
 375
 376         /* try to compile the filter for h245 */
 377         g_snprintf(filter_text_h245,sizeof(filter_text_h245),
 378         "h245 && (( ip.src==%s && %s.srcport==%u ) || ( ip.dst==%s && %s.dstport==%u ))",
 379                 ip_to_str((ip_addr_p)&(user_data->ip_src_h245)),
 380                                 transport_prot_name[user_data->transport],
 381                 user_data->port_src_h245,
 382                 ip_to_str((ip_addr_p)&(user_data->ip_src_h245)),
 383                                 transport_prot_name[user_data->transport],
 384                 user_data->port_src_h245
 385                 );
 386
 387         if (!dfilter_compile(filter_text_h245, &sfcode)) {
 388                 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dfilter_error_msg);
 389                 return;
 390         }
 391
 392         /* register tap h225 listener */
 393         error_string = register_tap_listener("h225", user_data, filter_text_h225,
 394                 h225_reset, h225_packet, h225_draw);
 395         if (error_string != NULL) {
 396                 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, error_string->str);
 397                         g_string_free(error_string, TRUE);
 398                 return;
 399         }
 400
 401         /* register tap h245 listener */
 402         error_string = register_tap_listener("h245", user_data, filter_text_h245,
 403                 NULL, h245_packet, NULL);
 404         if (error_string != NULL) {
 405                 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, error_string->str);
 406                         g_string_free(error_string, TRUE);
 407                 return;
 408         }
 409
 410         /* retap all packets */
 411         retap_packets(&cfile);
 412
 413         /* remove tap listener again */
 414         protect_thread_critical_region();
 415         remove_tap_listener(user_data);
 416         remove_tap_listener(user_data);
 417         unprotect_thread_critical_region();
 418
 419 }
 420
 421
 422 /************************************************************************************/
 423 /************** Create the dialog box with all widgets ******************************/
 424 void create_h225_dialog(user_data_t* user_data)
 425 {
 426         GtkWidget *window = NULL;
 427         GtkWidget *clist_h225;
 428         /*GtkWidget *label_stats;*/
 429
 430         GtkWidget *main_vb;
 431         GtkWidget *label;
 432         GtkWidget *scrolled_window;
 433         GtkWidget *box4, *goto_bt, *close_bt, *refresh_bt;
 434         GtkTooltips *tooltips = gtk_tooltips_new();
 435
 436         gchar label_forward[150];
 437
 438         gchar str_ip_src[16];
 439         gchar str_ip_dst[16];
 440
 441         /* as multiple analysis windows can be opened,
 442          * don't use window_new_with_geom(), as that will place them on top of each other! */
 443         window = window_new(GTK_WINDOW_TOPLEVEL, "Ethereal: H.323 VoIP Analysis");
 444         gtk_window_set_default_size(GTK_WINDOW(window), 700, 350);
 445
 446         /* Container for each row of widgets */
 447         main_vb = gtk_vbox_new(FALSE, 2);
 448         gtk_container_add(GTK_CONTAINER(window), main_vb);
 449         gtk_container_set_border_width(GTK_CONTAINER(main_vb), 2);
 450         gtk_widget_show(main_vb);
 451
 452         strcpy(str_ip_src, ip_to_str((ip_addr_p)&user_data->ip_src));
 453         strcpy(str_ip_dst, ip_to_str((ip_addr_p)&user_data->ip_dst));
 454
 455         g_snprintf(label_forward, 149,
 456                 "\nAnalysing H.323 Call between  %s port %u (Side A) and  %s port %u (Side B)\n",
 457                 str_ip_src, user_data->port_src, str_ip_dst, user_data->port_dst);
 458
 459         /* label */
 460         label = gtk_label_new(label_forward);
 461         gtk_box_pack_start (GTK_BOX (main_vb), label, FALSE, FALSE, 0);
 462
 463         /* scrolled window */
 464         scrolled_window = scrolled_window_new (NULL, NULL);
 465         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
 466                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 467         gtk_box_pack_start (GTK_BOX (main_vb), scrolled_window, TRUE, TRUE, 0);
 468
 469         /* place for some statistics */
 470         /*label_stats = gtk_label_new("\n");*/
 471         /*gtk_box_pack_start(GTK_BOX(main_vb), label_stats, FALSE, FALSE, 0);*/
 472
 473         /* packet clist */
 474         clist_h225 = gtk_clist_new_with_titles(7, titles);
 475         gtk_container_add(GTK_CONTAINER(scrolled_window), clist_h225);
 476         gtk_widget_show(clist_h225);
 477         SIGNAL_CONNECT(clist_h225, "select_row", on_clist_select_row, user_data);
 478
 479         /* column widths and justification */
 480         gtk_clist_set_column_width(GTK_CLIST(clist_h225), 0, 45);
 481         gtk_clist_set_column_width(GTK_CLIST(clist_h225), 1, 90);
 482         gtk_clist_set_column_width(GTK_CLIST(clist_h225), 2, 90);
 483         gtk_clist_set_column_width(GTK_CLIST(clist_h225), 3, 140);
 484         gtk_clist_set_column_width(GTK_CLIST(clist_h225), 4, 60);
 485         gtk_clist_set_column_width(GTK_CLIST(clist_h225), 5, 140);
 486         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 0, GTK_JUSTIFY_CENTER);
 487         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 1, GTK_JUSTIFY_CENTER);
 488         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 2, GTK_JUSTIFY_CENTER);
 489         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 3, GTK_JUSTIFY_LEFT);
 490         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 4, GTK_JUSTIFY_CENTER);
 491         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 5, GTK_JUSTIFY_LEFT);
 492         gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 6, GTK_JUSTIFY_CENTER);
 493
 494         gtk_widget_show(scrolled_window);
 495
 496         /* buttons */
 497         box4 = gtk_hbutton_box_new();
 498         gtk_box_pack_start(GTK_BOX(main_vb), box4, FALSE, FALSE, 0);
 499         gtk_container_set_border_width(GTK_CONTAINER(box4), 10);
 500         gtk_button_box_set_layout(GTK_BUTTON_BOX (box4), GTK_BUTTONBOX_END);
 501         gtk_button_box_set_spacing(GTK_BUTTON_BOX (box4), 10);
 502         gtk_button_box_set_child_ipadding(GTK_BUTTON_BOX (box4), 4, 0);
 503         gtk_widget_show(box4);
 504
 505         refresh_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_REFRESH);
 506         gtk_container_add(GTK_CONTAINER(box4), refresh_bt);
 507         gtk_widget_show(refresh_bt);
 508         SIGNAL_CONNECT(refresh_bt, "clicked", on_refresh_bt_clicked, user_data);
 509         gtk_tooltips_set_tip (tooltips, refresh_bt, "Refresh data", NULL);
 510
 511         goto_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_JUMP_TO);
 512         gtk_container_add(GTK_CONTAINER(box4), goto_bt);
 513         gtk_widget_show(goto_bt);
 514         SIGNAL_CONNECT(goto_bt, "clicked", on_goto_bt_clicked, user_data);
 515         gtk_tooltips_set_tip (tooltips, goto_bt, "Jump to the selected packet", NULL);
 516
 517         close_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE);
 518         gtk_container_add(GTK_CONTAINER(box4), close_bt);
 519         GTK_WIDGET_SET_FLAGS(close_bt, GTK_CAN_DEFAULT);
 520         gtk_widget_show(close_bt);
 521         gtk_tooltips_set_tip (tooltips, close_bt, "Close this dialog", NULL);
 522         window_set_cancel_button(window, close_bt, window_cancel_button_cb);
 523
 524         SIGNAL_CONNECT(window, "delete_event", window_delete_event_cb, NULL);
 525         SIGNAL_CONNECT(window, "destroy", on_destroy, user_data);
 526
 527         gtk_widget_show_all(window);
 528         window_present(window);
 529
 530         /* some widget references need to be saved for outside use */
 531         user_data->window = window;
 532         user_data->clist1 = GTK_CLIST(clist_h225);
 533         user_data->label_stats = label;
 534         user_data->selected_clist1 = GTK_CLIST(clist_h225);
 535         user_data->selected_row = 0;
 536 }
 537
 538
 539 /****************************************************************************/
 540 void h323_analysis(
 541                 guint32 ip_src,
 542                 guint16 port_src,
 543                 guint32 ip_dst,
 544                 guint16 port_dst,
 545                 guint32 ip_src_h245,
 546                 guint16 port_src_h245,
 547                 guint16 transport
 548                 )
 549 {
 550         user_data_t *user_data;
 551
 552         /* init */
 553         user_data = g_malloc(sizeof(user_data_t));
 554
 555         user_data->ip_src = ip_src;
 556         user_data->port_src = port_src;
 557         user_data->ip_dst = ip_dst;
 558         user_data->port_dst = port_dst;
 559         user_data->ip_src_h245 = ip_src_h245;
 560         user_data->port_src_h245 = port_src_h245;
 561         user_data->transport = transport;
 562
 563         /* create the dialog box */
 564         create_h225_dialog(user_data);
 565
 566         /* proceed as if the Refresh button would have been pressed */
 567         on_refresh_bt_clicked(NULL, user_data);
 568 }
 569
 570