gtk/flow_graph.c

   1 /* flow_graph.c
   2  * $Id:$
   3  * Allows to display a flow graph of the currently displayed packets
   4  *
   5  * Copyright 2004, Ericsson , Spain
   6  * By Francisco Alcoba <francisco.alcoba@ericsson.com>
   7  *
   8  * Ethereal - Network traffic analyzer
   9  * By Gerald Combs <gerald@ethereal.com>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation,  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 #  include <config.h>
  29 #endif
  30
  31 #include "register.h"
  32
  33 #include "globals.h"
  34 #include "epan/filesystem.h"
  35
  36 #include "graph_analysis.h"
  37 #include <epan/stat_cmd_args.h>
  38 #include "../stat_menu.h"
  39 #include "gui_stat_menu.h"
  40 #include "dlg_utils.h"
  41 #include "gui_utils.h"
  42 #include "compat_macros.h"
  43 #include "gtkglobals.h"
  44
  45 #include "simple_dialog.h"
  46
  47 #include <epan/to_str.h>
  48 #include <epan/tap.h>
  49 #include <epan/dissectors/packet-tcp.h>
  50
  51 #include <string.h>
  52
  53 #define DISPLAYED 0
  54 #define ALL 1
  55 #define GENERAL 0
  56 #define TCP 1
  57 #define SRCDST 0
  58 #define NET_SRCDST 1
  59
  60 static int type_of_packets = DISPLAYED;
  61 static int type_of_flow = GENERAL;
  62 static int node_addr_type = SRCDST;
  63
  64 static int tap_identifier;
  65 static gboolean have_frame_tap_listener=FALSE;
  66 static gboolean have_tcp_tap_listener=FALSE;
  67 static graph_analysis_info_t *graph_analysis = NULL;
  68 static graph_analysis_data_t *graph_analysis_data;
  69
  70 static GtkWidget *flow_graph_dlg = NULL;
  71
  72 static GtkWidget *select_all_rb;
  73 static GtkWidget *select_displayed_rb;
  74 static GtkWidget *select_general_rb;
  75 static GtkWidget *select_tcp_rb;
  76 static GtkWidget *src_dst_rb;
  77 static GtkWidget *net_src_dst_rb;
  78
  79 void flow_graph_data_init(void);
  80
  81
  82 /****************************************************************************/
  83 /* free up memory and initialize the pointers */
  84
  85 static void flow_graph_reset(void *ptr _U_)
  86 {
  87
  88         graph_analysis_item_t *graph_item;
  89
  90         GList* list;
  91
  92         if (graph_analysis !=NULL){
  93
  94                 /* free the graph data items */
  95                 list = g_list_first(graph_analysis->list);
  96                 while (list)
  97                 {
  98                         graph_item = list->data;
  99                         g_free(graph_item->frame_label);
 100                         g_free(graph_item->comment);
 101                         g_free(list->data);
 102                         list = g_list_next(list);
 103                 }
 104                 g_list_free(graph_analysis->list);
 105                 graph_analysis->nconv = 0;
 106                 graph_analysis->list = NULL;
 107         }
 108         return;
 109 }
 110
 111 /****************************************************************************/
 112 void flow_graph_data_init(void) {
 113         graph_analysis = g_malloc(sizeof(graph_analysis_info_t));
 114         graph_analysis->nconv = 0;
 115         graph_analysis->list = NULL;
 116         return;
 117 }
 118
 119 /* XXX just copied from gtk/rpc_stat.c */
 120 void protect_thread_critical_region(void);
 121 void unprotect_thread_critical_region(void);
 122
 123 /****************************************************************************/
 124 static void
 125 remove_tap_listener_flow_graph(void)
 126 {
 127         protect_thread_critical_region();
 128         remove_tap_listener(&(tap_identifier));
 129         unprotect_thread_critical_region();
 130
 131         have_frame_tap_listener=FALSE;
 132         have_tcp_tap_listener=FALSE;
 133 }
 134
 135
 136 /****************************************************************************/
 137 /* CALLBACKS                                                                */
 138 /****************************************************************************/
 139 static void
 140 flow_graph_on_destroy(GtkObject *object _U_, gpointer user_data _U_)
 141 {
 142         /* remove_tap_listeners */
 143         remove_tap_listener_flow_graph();
 144
 145         /* Clean up memory used by tap */
 146         flow_graph_reset(NULL);
 147
 148         /* Note that we no longer have a "Flow Graph" dialog box. */
 149         flow_graph_dlg = NULL;
 150 }
 151
 152
 153 /****************************************************************************/
 154 static void
 155 toggle_select_all(GtkWidget *widget _U_, gpointer user_data _U_)
 156 {
 157   /* is the button now active? */
 158         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_all_rb))) {
 159                 type_of_packets = ALL;
 160         }
 161 }
 162
 163 /****************************************************************************/
 164 static void
 165 toggle_select_displayed(GtkWidget *widget _U_, gpointer user_data _U_)
 166 {
 167   /* is the button now active? */
 168         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_displayed_rb))) {
 169                 type_of_packets = DISPLAYED;
 170         }
 171 }
 172
 173 /****************************************************************************/
 174 static void
 175 toggle_select_general(GtkWidget *widget _U_, gpointer user_data _U_)
 176 {
 177   /* is the button now active? */
 178         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_general_rb))) {
 179                 type_of_flow = GENERAL;
 180         }
 181 }
 182
 183 /****************************************************************************/
 184 static void
 185 toggle_select_tcp(GtkWidget *widget _U_, gpointer user_data _U_)
 186 {
 187   /* is the button now active? */
 188         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_tcp_rb))) {
 189                 type_of_flow = TCP;
 190         }
 191 }
 192
 193 /****************************************************************************/
 194 static void
 195 toggle_select_srcdst(GtkWidget *widget _U_, gpointer user_data _U_)
 196 {
 197   /* is the button now active? */
 198         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(src_dst_rb))) {
 199                 node_addr_type = SRCDST;
 200         }
 201 }
 202
 203 /****************************************************************************/
 204 static void
 205 toggle_select_netsrcdst(GtkWidget *widget _U_, gpointer user_data _U_)
 206 {
 207   /* is the button now active? */
 208         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(net_src_dst_rb))) {
 209                 node_addr_type = NET_SRCDST;
 210         }
 211 }
 212
 213 /****************************************************************************/
 214 /* Add a new frame into the graph */
 215 static int flow_graph_frame_add_to_graph(packet_info *pinfo)
 216 {
 217         graph_analysis_item_t *gai;
 218         int i;
 219         gchar *protocol;
 220         gchar *colinfo;
 221
 222         protocol=NULL;
 223         colinfo=NULL;
 224
 225         gai = g_malloc(sizeof(graph_analysis_item_t));
 226         gai->frame_num = pinfo->fd->num;
 227         gai->time= nstime_to_sec(&pinfo->fd->rel_ts);
 228         if (node_addr_type == NET_SRCDST) {
 229                 COPY_ADDRESS(&(gai->src_addr),&(pinfo->net_src));
 230             COPY_ADDRESS(&(gai->dst_addr),&(pinfo->net_dst));
 231         } else {
 232                 COPY_ADDRESS(&(gai->src_addr),&(pinfo->src));
 233                 COPY_ADDRESS(&(gai->dst_addr),&(pinfo->dst));
 234         }
 235         gai->port_src=pinfo->srcport;
 236         gai->port_dst=pinfo->destport;
 237         gai->comment=NULL;
 238         gai->frame_label=NULL;
 239
 240         if (gai->comment!=NULL){
 241                 g_free(gai->comment);
 242         }
 243         if (gai->frame_label!=NULL){
 244                 g_free(gai->frame_label);
 245         }
 246
 247
 248         if (pinfo->cinfo->col_first[COL_INFO]>=0){
 249
 250                 for (i = pinfo->cinfo->col_first[COL_INFO]; i <= pinfo->cinfo->col_last[COL_INFO]; i++) {
 251                 if (pinfo->cinfo->fmt_matx[i][COL_INFO]) {
 252                                 colinfo = g_strdup(pinfo->cinfo->col_data[i]);
 253                         }
 254                 }
 255         }
 256
 257         if (pinfo->cinfo->col_first[COL_PROTOCOL]>=0){
 258
 259                 for (i = pinfo->cinfo->col_first[COL_PROTOCOL]; i <= pinfo->cinfo->col_last[COL_PROTOCOL]; i++) {
 260                 if (pinfo->cinfo->fmt_matx[i][COL_PROTOCOL]) {
 261                                 protocol = g_strdup(pinfo->cinfo->col_data[i]);
 262
 263                         }
 264                 }
 265         }
 266
 267         if (colinfo != NULL) {
 268                 if (protocol != NULL) {
 269                         gai->frame_label = g_strdup_printf("%.19s", colinfo);
 270                         gai->comment = g_strdup_printf("%s: %s", protocol, colinfo);
 271                 } else {
 272                         gai->frame_label = g_strdup_printf("%.19s", colinfo);
 273                         gai->comment = g_strdup_printf("%s", colinfo);
 274                 }
 275         } else {
 276                 /* This will probably never happen...*/
 277                 if (protocol != NULL) {
 278                         gai->frame_label = g_strdup_printf("%.19s", protocol);
 279                         gai->comment = g_strdup_printf("%s", protocol);
 280                 } else {
 281                         gai->frame_label = NULL;
 282                         gai->comment = NULL;
 283                 }
 284         }
 285
 286         if (protocol!=NULL){
 287                 g_free(protocol);
 288         }
 289         if (colinfo!=NULL){
 290                 g_free(colinfo);
 291         }
 292
 293         gai->line_style=1;
 294         gai->conv_num=0;
 295         gai->display=TRUE;
 296
 297         graph_analysis->list = g_list_append(graph_analysis->list, gai);
 298
 299         return 1;
 300
 301 }
 302
 303 /****************************************************************************/
 304 /* Add a new tcp frame into the graph */
 305 static int flow_graph_tcp_add_to_graph(packet_info *pinfo, const struct tcpheader *tcph)
 306 {
 307         graph_analysis_item_t *gai;
 308         /* copied from packet-tcp */
 309         const gchar *fstr[] = {"FIN", "SYN", "RST", "PSH", "ACK", "URG", "ECN", "CWR" };
 310         guint i, bpos;
 311         guint fpos = 0;
 312         gchar flags[64] = "<None>";
 313
 314         gai = g_malloc(sizeof(graph_analysis_item_t));
 315         gai->frame_num = pinfo->fd->num;
 316         gai->time= nstime_to_sec(&pinfo->fd->rel_ts);
 317   if (node_addr_type == NET_SRCDST) {
 318     COPY_ADDRESS(&(gai->src_addr),&(pinfo->net_src));
 319     COPY_ADDRESS(&(gai->dst_addr),&(pinfo->net_dst));
 320   } else {
 321     COPY_ADDRESS(&(gai->src_addr),&(pinfo->src));
 322     COPY_ADDRESS(&(gai->dst_addr),&(pinfo->dst));
 323   }
 324         gai->port_src=pinfo->srcport;
 325         gai->port_dst=pinfo->destport;
 326
 327     for (i = 0; i < 8; i++) {
 328       bpos = 1 << i;
 329       if (tcph->th_flags & bpos) {
 330         if (fpos) {
 331           strcpy(&flags[fpos], ", ");
 332           fpos += 2;
 333         }
 334         strcpy(&flags[fpos], fstr[i]);
 335         fpos += 3;
 336       }
 337     }
 338     flags[fpos] = '\0';
 339     if ((tcph->th_have_seglen)&&(tcph->th_seglen!=0)){
 340       gai->frame_label = g_strdup_printf("%s - Len: %u",flags, tcph->th_seglen);
 341         }
 342         else{
 343       gai->frame_label = g_strdup(flags);
 344         }
 345
 346         gai->comment = g_strdup_printf("Seq = %i Ack = %i",tcph->th_seq, tcph->th_ack);
 347
 348         gai->line_style=1;
 349         gai->conv_num=0;
 350         gai->display=TRUE;
 351
 352         graph_analysis->list = g_list_append(graph_analysis->list, gai);
 353
 354         return 1;
 355
 356 }
 357
 358
 359
 360 /****************************************************************************/
 361 /* whenever a frame packet is seen by the tap listener */
 362 static int
 363 flow_graph_frame_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *dummy _U_)
 364 {
 365
 366         if ((type_of_packets == ALL)||(pinfo->fd->flags.passed_dfilter==1)){
 367                 flow_graph_frame_add_to_graph(pinfo);
 368         }
 369
 370         return 1;
 371 }
 372
 373 /****************************************************************************/
 374 /* whenever a TCP packet is seen by the tap listener */
 375 static int
 376 flow_graph_tcp_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *tcp_info)
 377 {
 378         const struct tcpheader *tcph = tcp_info;
 379
 380         if ((type_of_packets == ALL)||(pinfo->fd->flags.passed_dfilter==1)){
 381                 flow_graph_tcp_add_to_graph(pinfo,tcph);
 382         }
 383
 384         return 1;
 385 }
 386
 387
 388 static void flow_graph_packet_draw(void *prs _U_)
 389 {
 390         return;
 391 }
 392
 393 /****************************************************************************/
 394 static void
 395 flow_graph_on_ok                    (GtkButton       *button _U_,
 396                                         gpointer         user_data _U_)
 397 {
 398
 399         if ((have_frame_tap_listener==TRUE)
 400                 ||(have_tcp_tap_listener==TRUE))
 401         {
 402                 /* remove_tap_listeners */
 403                 remove_tap_listener_flow_graph();
 404         }
 405
 406         /* Scan for displayed packets (retap all packets) */
 407
 408         if (type_of_flow == GENERAL){
 409                 /* Register the tap listener */
 410
 411                 if(have_frame_tap_listener==FALSE)
 412                 {
 413                         /* don't register tap listener, if we have it already */
 414                         register_tap_listener("frame", &tap_identifier, NULL,
 415                                 flow_graph_reset,
 416                                 flow_graph_frame_packet,
 417                                 flow_graph_packet_draw
 418                                 );
 419                         have_frame_tap_listener=TRUE;
 420                 }
 421
 422                 cf_retap_packets(&cfile, TRUE);
 423         }
 424         else if (type_of_flow == TCP){
 425         /* Register the tap listener */
 426
 427                 if(have_tcp_tap_listener==FALSE)
 428                 {
 429                         /* don't register tap listener, if we have it already */
 430                         register_tap_listener("tcp", &tap_identifier, NULL,
 431                                 flow_graph_reset,
 432                                 flow_graph_tcp_packet,
 433                                 flow_graph_packet_draw
 434                                 );
 435                         have_tcp_tap_listener=TRUE;
 436                 }
 437
 438                 cf_retap_packets(&cfile, FALSE);
 439         }
 440
 441         if (graph_analysis_data->dlg.window != NULL){ /* if we still have a window */
 442                 graph_analysis_update(graph_analysis_data);             /* refresh it xxx */
 443         }
 444         else{
 445                 graph_analysis_create(graph_analysis_data);
 446         }
 447
 448 }
 449
 450
 451 /****************************************************************************/
 452 /* INTERFACE                                                                */
 453 /****************************************************************************/
 454
 455 static void flow_graph_dlg_create (void)
 456 {
 457
 458         GtkWidget *flow_graph_dlg_w;
 459         GtkWidget *main_vb;
 460         GtkWidget *hbuttonbox;
 461         GtkWidget *bt_close, *bt_ok;
 462 #if 0
 463         GtkWidget *top_label = NULL;
 464 #endif
 465         GtkWidget *flow_type_fr, *range_fr, *range_tb, *flow_type_tb, *node_addr_fr, *node_addr_tb;
 466 #if GTK_MAJOR_VERSION < 2
 467   GtkAccelGroup *accel_group;
 468 #endif
 469
 470
 471         GtkTooltips *tooltips = gtk_tooltips_new();
 472
 473         flow_graph_dlg_w=window_new(GTK_WINDOW_TOPLEVEL, "Ethereal: Flow Graph");
 474
 475         gtk_window_set_default_size(GTK_WINDOW(flow_graph_dlg_w), 350, 150);
 476
 477         main_vb = gtk_vbox_new (FALSE, 0);
 478         gtk_container_add(GTK_CONTAINER(flow_graph_dlg_w), main_vb);
 479         gtk_container_set_border_width (GTK_CONTAINER (main_vb), 12);
 480
 481 #if GTK_MAJOR_VERSION < 2
 482   /* Accelerator group for the accelerators (or, as they're called in
 483      Windows and, I think, in Motif, "mnemonics"; Alt+<key> is a mnemonic,
 484      Ctrl+<key> is an accelerator). */
 485   accel_group = gtk_accel_group_new();
 486   gtk_window_add_accel_group(GTK_WINDOW(main_vb), accel_group);
 487 #endif
 488
 489 #if 0
 490         top_label = gtk_label_new ("Choose packets to include in the graph");
 491         gtk_box_pack_start (GTK_BOX (main_vb), top_label, FALSE, FALSE, 8);
 492 #endif
 493
 494         gtk_widget_show(flow_graph_dlg_w);
 495
 496         /*** Packet range frame ***/
 497         range_fr = gtk_frame_new("Choose packets");
 498         gtk_box_pack_start(GTK_BOX(main_vb), range_fr, FALSE, FALSE, 0);
 499
 500     range_tb = gtk_table_new(4, 4, FALSE);
 501     gtk_container_border_width(GTK_CONTAINER(range_tb), 5);
 502         gtk_container_add(GTK_CONTAINER(range_fr), range_tb);
 503
 504         /* Process all packets */
 505         select_all_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "_All packets", accel_group);
 506         gtk_tooltips_set_tip (tooltips, select_all_rb,
 507                 ("Process all packets"), NULL);
 508         SIGNAL_CONNECT(select_all_rb, "toggled", toggle_select_all, NULL);
 509         gtk_table_attach_defaults(GTK_TABLE(range_tb), select_all_rb, 0, 1, 0, 1);
 510         if (type_of_packets == ALL) {
 511                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_all_rb),TRUE);
 512         }
 513         gtk_widget_show(select_all_rb);
 514
 515         /* Process displayed packets */
 516         select_displayed_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(select_all_rb, "_Displayed packets", accel_group);
 517         gtk_tooltips_set_tip (tooltips, select_displayed_rb,
 518                 ("Process displayed packets"), NULL);
 519         SIGNAL_CONNECT(select_displayed_rb, "toggled", toggle_select_displayed, NULL);
 520         gtk_table_attach_defaults(GTK_TABLE(range_tb), select_displayed_rb, 1, 2, 0, 1);
 521         if (type_of_packets == DISPLAYED) {
 522                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_displayed_rb),TRUE);
 523         }
 524         gtk_widget_show(select_displayed_rb);
 525
 526         gtk_widget_show(range_tb);
 527
 528         gtk_widget_show(range_fr);
 529
 530         /*** Flow type frame ***/
 531         flow_type_fr = gtk_frame_new("Choose flow type");
 532         gtk_box_pack_start(GTK_BOX(main_vb), flow_type_fr, FALSE, FALSE, 0);
 533
 534     flow_type_tb = gtk_table_new(4, 4, FALSE);
 535     gtk_container_border_width(GTK_CONTAINER(flow_type_tb), 5);
 536         gtk_container_add(GTK_CONTAINER(flow_type_fr), flow_type_tb);
 537
 538         /* General information */
 539         select_general_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "_General flow", accel_group);
 540         gtk_tooltips_set_tip (tooltips, select_general_rb,
 541                 ("Show all packets, with general information"), NULL);
 542         SIGNAL_CONNECT(select_general_rb, "toggled", toggle_select_general, NULL);
 543         gtk_table_attach_defaults(GTK_TABLE(flow_type_tb), select_general_rb, 0, 1, 0, 1);
 544         if (type_of_flow == GENERAL) {
 545                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_general_rb),TRUE);
 546         }
 547         gtk_widget_show(select_general_rb);
 548
 549         /* TCP specific information */
 550         select_tcp_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(select_general_rb, "_TCP flow", accel_group);
 551         gtk_tooltips_set_tip (tooltips, select_tcp_rb,
 552                 ("Show only TCP packets, with TCP specific information"), NULL);
 553         SIGNAL_CONNECT(select_tcp_rb, "toggled", toggle_select_tcp, NULL);
 554         gtk_table_attach_defaults(GTK_TABLE(flow_type_tb), select_tcp_rb, 1, 2, 0, 1);
 555         if (type_of_flow == TCP) {
 556                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_tcp_rb),TRUE);
 557         }
 558
 559         gtk_widget_show(select_tcp_rb);
 560
 561         gtk_widget_show(flow_type_tb);
 562         gtk_widget_show(flow_type_fr);
 563
 564         /*** Node address type frame ***/
 565         node_addr_fr = gtk_frame_new("Choose node address type");
 566         gtk_box_pack_start(GTK_BOX(main_vb), node_addr_fr, FALSE, FALSE, 0);
 567
 568     node_addr_tb = gtk_table_new(4, 4, FALSE);
 569     gtk_container_border_width(GTK_CONTAINER(node_addr_tb), 5);
 570         gtk_container_add(GTK_CONTAINER(node_addr_fr), node_addr_tb);
 571
 572         /* Source / Dest address */
 573         src_dst_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "_Standard source/destination addresses", accel_group);
 574         gtk_tooltips_set_tip (tooltips, src_dst_rb,
 575                 ("Nodes in the diagram are identified with source and destination addresses"), NULL);
 576         SIGNAL_CONNECT(src_dst_rb, "toggled", toggle_select_srcdst, NULL);
 577         gtk_table_attach_defaults(GTK_TABLE(node_addr_tb), src_dst_rb, 0, 1, 0, 1);
 578         if (node_addr_type == SRCDST) {
 579                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(src_dst_rb),TRUE);
 580         }
 581         gtk_widget_show(src_dst_rb);
 582
 583         /* Network source / dest address */
 584         net_src_dst_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(src_dst_rb, "_Network source/destination addresses", accel_group);
 585         gtk_tooltips_set_tip (tooltips, net_src_dst_rb,
 586                 ("Nodes in the diagram are identified with network source and destination addresses"), NULL);
 587         SIGNAL_CONNECT(net_src_dst_rb, "toggled", toggle_select_netsrcdst, NULL);
 588         gtk_table_attach_defaults(GTK_TABLE(node_addr_tb), net_src_dst_rb, 1, 2, 0, 1);
 589         if (node_addr_type == NET_SRCDST) {
 590                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(net_src_dst_rb),TRUE);
 591         }
 592
 593         gtk_widget_show(net_src_dst_rb);
 594
 595         gtk_widget_show(node_addr_tb);
 596         gtk_widget_show(node_addr_fr);
 597
 598         /* button row */
 599         hbuttonbox = gtk_hbutton_box_new ();
 600         gtk_box_pack_start (GTK_BOX (main_vb), hbuttonbox, FALSE, FALSE, 0);
 601         gtk_button_box_set_layout (GTK_BUTTON_BOX (hbuttonbox), GTK_BUTTONBOX_SPREAD);
 602         gtk_button_box_set_spacing (GTK_BUTTON_BOX (hbuttonbox), 30);
 603
 604         bt_ok = BUTTON_NEW_FROM_STOCK(GTK_STOCK_OK);
 605         gtk_container_add(GTK_CONTAINER(hbuttonbox), bt_ok);
 606         gtk_tooltips_set_tip (tooltips, bt_ok, "Show the flow graph", NULL);
 607         SIGNAL_CONNECT(bt_ok, "clicked", flow_graph_on_ok, NULL);
 608         gtk_widget_show(bt_ok);
 609
 610         bt_close = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE);
 611         gtk_container_add (GTK_CONTAINER (hbuttonbox), bt_close);
 612         GTK_WIDGET_SET_FLAGS(bt_close, GTK_CAN_DEFAULT);
 613         gtk_tooltips_set_tip (tooltips, bt_close, "Close this dialog", NULL);
 614         window_set_cancel_button(flow_graph_dlg_w, bt_close, window_cancel_button_cb);
 615
 616         SIGNAL_CONNECT(flow_graph_dlg_w, "delete_event", window_delete_event_cb, NULL);
 617         SIGNAL_CONNECT(flow_graph_dlg_w, "destroy", flow_graph_on_destroy, NULL);
 618
 619         gtk_widget_show_all(flow_graph_dlg_w);
 620         window_present(flow_graph_dlg_w);
 621
 622         flow_graph_dlg = flow_graph_dlg_w;
 623 }
 624
 625 /****************************************************************************/
 626 /* PUBLIC                                                                   */
 627 /****************************************************************************/
 628
 629 /* init function for tap */
 630 static void
 631 flow_graph_init_tap(const char *dummy _U_)
 632 {
 633
 634         /* initialize graph items store */
 635         flow_graph_data_init();
 636
 637         /* init the Graph Analysys */
 638         graph_analysis_data = graph_analysis_init();
 639         graph_analysis_data->graph_info = graph_analysis;
 640
 641         /* create dialog box if necessary */
 642         if (flow_graph_dlg == NULL) {
 643                 flow_graph_dlg_create();
 644         } else {
 645                 /* There's already a dialog box; reactivate it. */
 646                 reactivate_window(flow_graph_dlg);
 647         }
 648
 649 }
 650
 651
 652 /****************************************************************************/
 653 /* entry point when called via the GTK menu */
 654 static void flow_graph_launch(GtkWidget *w _U_, gpointer data _U_)
 655 {
 656         flow_graph_init_tap("");
 657 }
 658
 659 /****************************************************************************/
 660 void
 661 register_tap_listener_flow_graph(void)
 662 {
 663         register_stat_cmd_arg("flow_graph",flow_graph_init_tap);
 664         register_stat_menu_item("Flo_w Graph...", REGISTER_STAT_GROUP_NONE,
 665             flow_graph_launch, NULL, NULL, NULL);
 666
 667 }
 668