ui/gtk/bootp_stat.c

   1 /* bootp_stat.c
   2  * boop_stat   2003 Jean-Michel FAYARD
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23  */
  24
  25 /* #define DEBUG        do{ printf("%s:%d  ",__FILE__,__LINE__);} while(0); */
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <gtk/gtk.h>
  31 #include <string.h>
  32
  33 #include <epan/packet_info.h>
  34 #include <epan/epan.h>
  35 #include <epan/tap.h>
  36
  37 #include "../stat_menu.h"
  38
  39 #include "ui/simple_dialog.h"
  40
  41 #include "ui/gtk/gui_utils.h"
  42 #include "ui/gtk/dlg_utils.h"
  43 #include "ui/gtk/tap_param_dlg.h"
  44 #include "ui/gtk/main.h"
  45
  46 #include "ui/gtk/old-gtk-compat.h"
  47
  48 typedef const char* bootp_info_value_t;
  49
  50 /* used to keep track of the statictics for an entire program interface */
  51 typedef struct _dhcp_stats_t {
  52         char            *filter;
  53         GtkWidget       *win;
  54         GHashTable      *hash;
  55         GtkWidget       *table_message_type;
  56         guint            index; /* Number of  to display */
  57 } dhcpstat_t;
  58 /* used to keep track of a single DHCP message type */
  59 typedef struct _dhcp_message_type_t {
  60         const char      *name;
  61         guint32          packets;
  62         GtkWidget       *widget;/* label in which we print the number of packets */
  63         dhcpstat_t      *sp;    /* entire program interface */
  64 } dhcp_message_type_t;
  65
  66 static void
  67 dhcp_free_hash( gpointer key _U_ , gpointer value, gpointer user_data _U_ )
  68 {
  69         g_free(value);
  70 }
  71 static void
  72 dhcp_reset_hash(gchar *key _U_ , dhcp_message_type_t *data, gpointer ptr _U_ )
  73 {
  74         data->packets = 0;
  75 }
  76
  77 /* Update the entry corresponding to the number of packets of a special DHCP Message Type
  78  * or create it if it don't exist.
  79  */
  80 static void
  81 dhcp_draw_message_type(gchar *key _U_, dhcp_message_type_t *data, gchar * unused _U_ )
  82 {
  83         char string_buff[256];
  84
  85         if ((data==NULL) || (data->packets==0))
  86                 return;
  87         if (data->widget==NULL){        /* create an entry in the table */
  88                 GtkWidget       *tmp;
  89                 int x = 2*((data->sp->index) % 2);
  90                 int y = (data->sp->index) /2;
  91
  92
  93                 /* Maybe we should display the hexadecimal value ? */
  94                 /* g_snprintf(string_buff, sizeof(string_buff), "%s  (0X%x)", data->name, *key); */
  95                 tmp = gtk_label_new( data->name  /* string_buff */ );
  96                 gtk_table_attach_defaults(GTK_TABLE(data->sp->table_message_type), tmp, x, x+1, y, y+1);
  97                 gtk_label_set_justify(GTK_LABEL(tmp), GTK_JUSTIFY_LEFT);
  98                 gtk_widget_show(tmp);
  99
 100                 g_snprintf( string_buff, sizeof(string_buff), "%9d", data->packets );
 101                 data->widget = gtk_label_new( string_buff );
 102                 gtk_table_attach_defaults(GTK_TABLE(data->sp->table_message_type), data->widget, x+1, x+2, y, y+1);
 103                 gtk_label_set_justify(GTK_LABEL(data->widget), GTK_JUSTIFY_LEFT);
 104                 gtk_widget_show( data->widget );
 105
 106                 data->sp->index++;
 107         } else {
 108                 /* Just update the label string */
 109                 g_snprintf( string_buff, sizeof(string_buff), "%9d", data->packets );
 110                 gtk_label_set_text( GTK_LABEL(data->widget), string_buff);
 111         }
 112 }
 113 static void
 114 dhcpstat_reset(void *psp)
 115 {
 116         dhcpstat_t *sp=psp;
 117         g_hash_table_foreach( sp->hash, (GHFunc)dhcp_reset_hash, NULL);
 118 }
 119 static int
 120 dhcpstat_packet(void *psp, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *pri)
 121 {
 122         dhcpstat_t *sp=psp;
 123         const bootp_info_value_t value=pri;
 124         dhcp_message_type_t *sc;
 125
 126         if (sp==NULL)
 127                 return 0;
 128         sc = g_hash_table_lookup(
 129                         sp->hash,
 130                         value);
 131         if (!sc) {
 132                 /*g_warning("%s:%d What's Wrong for %s, doc ?", __FILE__, __LINE__, value);*/
 133                 sc = g_malloc( sizeof(dhcp_message_type_t) );
 134                 sc -> packets = 1;
 135                 sc -> name = value;
 136                 sc -> widget=NULL;
 137                 sc -> sp = sp;
 138                 g_hash_table_insert(
 139                                 sp->hash,
 140                                 (gpointer) value,
 141                                 sc);
 142         } else {
 143                 /*g_warning("sc(%s)->packets++", sc->name);*/
 144                 sc->packets++;
 145         }
 146         return 1;
 147 }
 148
 149
 150 static void
 151 dhcpstat_draw(void *psp)
 152 {
 153         dhcpstat_t *sp=psp;
 154         guint idx;
 155
 156         idx=sp->index;
 157         g_hash_table_foreach( sp->hash, (GHFunc) dhcp_draw_message_type, NULL );
 158         if (idx != sp->index){
 159                 /* We have inserted a new entry corresponding to a status code ,
 160                  * let's resize the table */
 161                 gtk_table_resize ( GTK_TABLE(sp->table_message_type), sp->index  % 2 , 4);
 162         }
 163
 164 }
 165
 166
 167
 168 /* since the gtk2 implementation of tap is multithreaded we must protect
 169  * remove_tap_listener() from modifying the list while draw_tap_listener()
 170  * is running.  the other protected block is in main.c
 171  *
 172  * there should not be any other critical regions in gtk2
 173  */
 174 static void
 175 win_destroy_cb(GtkWindow *win _U_, gpointer data)
 176 {
 177         dhcpstat_t *sp=(dhcpstat_t *)data;
 178
 179         protect_thread_critical_region();
 180         remove_tap_listener(sp);
 181         unprotect_thread_critical_region();
 182
 183         g_free(sp->filter);
 184         g_hash_table_foreach( sp->hash, (GHFunc)dhcp_free_hash, NULL);
 185         g_hash_table_destroy( sp->hash);
 186         g_free(sp);
 187 }
 188
 189
 190 /* When called, this function will create a new instance of gtk2-dhcpstat.
 191  */
 192 static void
 193 dhcpstat_init(const char *optarg, void *userdata _U_)
 194 {
 195         dhcpstat_t *sp;
 196         const char      *filter=NULL;
 197         char            *title=NULL;
 198         GString         *error_string;
 199         GtkWidget       *message_type_fr;
 200         GtkWidget       *vbox;
 201         GtkWidget       *bt_close;
 202         GtkWidget       *bbox;
 203
 204         if (strncmp (optarg, "bootp,stat,", 11) == 0){
 205                 filter=optarg+11;
 206         } else {
 207                 filter=NULL;
 208         }
 209
 210         sp = g_malloc( sizeof(dhcpstat_t) );
 211         sp->hash = g_hash_table_new( g_str_hash, g_str_equal);
 212         if(filter){
 213                 sp->filter=g_strdup(filter);
 214                 title=g_strdup_printf("DHCP statistics with filter: %s", filter);
 215         } else {
 216                 sp->filter=NULL;
 217                 title=g_strdup("DHCP statistics");
 218         }
 219
 220         /* transient_for top_level */
 221         sp->win= dlg_window_new(title);
 222         gtk_window_set_destroy_with_parent (GTK_WINDOW(sp->win), TRUE);
 223         g_free(title);
 224
 225         vbox = gtk_vbox_new(FALSE, 3);
 226         gtk_container_add(GTK_CONTAINER(sp->win), vbox);
 227         gtk_container_set_border_width(GTK_CONTAINER(vbox), 12);
 228
 229         /* Status Codes frame */
 230         message_type_fr = gtk_frame_new("DHCP Message Type");
 231         gtk_container_add(GTK_CONTAINER(vbox), message_type_fr);
 232         gtk_widget_show(message_type_fr);
 233
 234         sp->table_message_type = gtk_table_new( 0, 4, FALSE);
 235         gtk_table_set_col_spacings( GTK_TABLE(sp->table_message_type), 10);
 236         gtk_container_add( GTK_CONTAINER( message_type_fr), sp->table_message_type);
 237         gtk_container_set_border_width( GTK_CONTAINER(sp->table_message_type) , 10);
 238         sp->index = 0;          /* Nothing to display yet */
 239
 240
 241         error_string = register_tap_listener(
 242                         "bootp",
 243                         sp,
 244                         filter,
 245                         0,
 246                         dhcpstat_reset,
 247                         dhcpstat_packet,
 248                         dhcpstat_draw);
 249         if (error_string){
 250                 /* error, we failed to attach to the tap. clean up */
 251                 simple_dialog( ESD_TYPE_ERROR, ESD_BTN_OK, "%s", error_string->str );
 252                 g_free(sp->filter);
 253                 g_free(sp);
 254                 g_string_free(error_string, TRUE);
 255                 return ;
 256         }
 257
 258         /* Button row. */
 259         bbox = dlg_button_row_new(GTK_STOCK_CLOSE, NULL);
 260         gtk_box_pack_start(GTK_BOX(vbox), bbox, FALSE, FALSE, 0);
 261
 262         bt_close = g_object_get_data(G_OBJECT(bbox), GTK_STOCK_CLOSE);
 263         window_set_cancel_button(sp->win, bt_close, window_cancel_button_cb);
 264
 265         g_signal_connect(sp->win, "delete_event", G_CALLBACK(window_delete_event_cb), NULL);
 266         g_signal_connect(sp->win, "destroy", G_CALLBACK(win_destroy_cb), sp);
 267
 268         gtk_widget_show_all(sp->win);
 269
 270         window_present(sp->win);
 271
 272         cf_retap_packets(&cfile);
 273         gdk_window_raise(gtk_widget_get_window(sp->win));
 274 }
 275
 276 static tap_param bootp_stat_params[] = {
 277         { PARAM_FILTER, "Filter", NULL }
 278 };
 279
 280 static tap_param_dlg dhcp_stat_dlg = {
 281         "BOOTP-DHCP Packet Counter",
 282         "bootp,stat",
 283         dhcpstat_init,
 284         -1,
 285         G_N_ELEMENTS(bootp_stat_params),
 286         bootp_stat_params
 287 };
 288
 289 void
 290 register_tap_listener_gtkdhcpstat(void)
 291 {
 292         register_dfilter_stat(&dhcp_stat_dlg, "BOOTP-DHCP",
 293             REGISTER_STAT_GROUP_UNSORTED);
 294 }
 295
 296
 297 void bootp_dhcp_stat_cb(GtkAction *action, gpointer user_data _U_)
 298 {
 299         tap_param_dlg_cb(action, &dhcp_stat_dlg);
 300 }
 301