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