/* capture_if_dlg.c
 * Routines for the capture interface dialog
 *
 * $Id$
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <gtk/gtk.h>

#ifdef HAVE_LIBPCAP

#include <string.h>

#ifdef __linux__
#include <sys/types.h>
#include <sys/stat.h>
#endif

#include <epan/prefs.h>

#include "../capture_ifinfo.h"
#include "../capture.h"
#include "../capture-pcap-util.h"
#include "../capture_ui_utils.h"
#include "wsutil/file_util.h"
#include <wiretap/wtap.h>

#include "ui/recent.h"
#include "ui/simple_dialog.h"

#ifdef _WIN32
#include "ui/gtk/capture_if_details_dlg_win32.h"
#include "../../capture-wpcap.h"
#endif

#include "ui/gtk/stock_icons.h"
#include "ui/gtk/capture_dlg.h"
#include "ui/gtk/capture_if_dlg.h"
#include "ui/gtk/gui_utils.h"
#include "ui/gtk/dlg_utils.h"
#include "ui/gtk/main.h"
#include "ui/gtk/main_toolbar.h"
#include "ui/gtk/help_dlg.h"
#include "ui/gtk/keys.h"
#include "ui/gtk/webbrowser.h"
#include "ui/gtk/capture_globals.h"
#include "ui/gtk/network_icons.h"
#include "ui/gtk/pipe_icon.h"
#include "ui/gtk/main_welcome.h"
#include "ui/gtk/menus.h"

#include "ui/gtk/old-gtk-compat.h"

#ifdef HAVE_AIRPCAP
#include "../../image/toolbar/capture_airpcap_16.xpm"
#endif

#if defined(HAVE_PCAP_REMOTE)
#include "ui/gtk/remote_icons.h"
#endif

#ifdef _WIN32
#include "../../image/toolbar/capture_ethernet_16.xpm"
#include "../../image/toolbar/modem_16.xpm"
#endif

#include "../../image/toolbar/network_virtual_16.xpm"

/* new buttons to be used instead of labels for 'Capture','Prepare',' */
/*#include "../../image/toolbar/capture_capture_16.xpm"*/
/*#include "../../image/toolbar/capture_prepare_16.xpm"*/
/*#include "../../image/toolbar/capture_details_16.xpm"*/


#ifdef HAVE_AIRPCAP
#include "airpcap.h"
#include "airpcap_loader.h"
#include "airpcap_gui_utils.h"
#include "airpcap_dlg.h"
#endif

#define CAPTURE_IF_IP_ADDR_LABEL      "capture_if_ip_addr_label"
#define CAPTURE_IF_SELECTED_IP_ADDR   "capture_if_selected_ip_addr"

/*
 * Keep a static pointer to the current "Capture Interfaces" window, if
 * any, so that if somebody tries to do "Capture:Start" while there's
 * already a "Capture Interfaces" window up, we just pop up the existing
 * one, rather than creating a new one.
 */
static GtkWidget *cap_if_w;

static guint     timer_id;

static GtkWidget *stop_bt, *capture_bt, *options_bt;

static GList     *if_list;

static GArray    *gtk_list;

static if_stat_cache_t   *sc;

/*
 * Timeout, in milliseconds, for reads from the stream of captured packets.
 */
#define	CAP_READ_TIMEOUT	250


/* the "runtime" data of one interface */
typedef struct if_dlg_data_s {
    gchar       *device;
    GtkWidget   *device_lb;
    GtkWidget   *descr_lb;
    GtkWidget   *ip_lb;
    GtkWidget   *curr_lb;
    GtkWidget   *last_lb;
    GtkWidget   *choose_bt;
#ifdef _WIN32
    GtkWidget   *details_bt;
#endif
} if_dlg_data_t;

static gboolean gbl_capture_in_progress = FALSE;

void
update_selected_interface(gchar *name)
{
  guint i;
  interface_t device;
  if_dlg_data_t data;

  for (i = 0; i < global_capture_opts.all_ifaces->len; i++) {
    device = g_array_index(global_capture_opts.all_ifaces, interface_t, i);
    data = g_array_index(gtk_list, if_dlg_data_t, i);
    if (strcmp(name, device.name) == 0) {
      gtk_toggle_button_set_active((GtkToggleButton *)data.choose_bt, device.selected);
      break;
    }
  }
}

static void
store_selected(GtkWidget *choose_bt, gpointer name)
{
  interface_t device;
  guint i;
  gboolean found;
  for (i = 0; i < global_capture_opts.all_ifaces->len; i++) {
    device = g_array_index(global_capture_opts.all_ifaces, interface_t, i);
    found = FALSE;
    if (strcmp(name, device.if_info.name) == 0) {
      found = TRUE;
      if (!device.locked) {
        device.selected ^= 1;
        if (device.selected) {
          global_capture_opts.num_selected++;
        } else {
          global_capture_opts.num_selected--;
        }
        global_capture_opts.all_ifaces = g_array_remove_index(global_capture_opts.all_ifaces, i);
        g_array_insert_val(global_capture_opts.all_ifaces, i, device);
        if (gtk_widget_is_focus(choose_bt) && get_welcome_window()) {
          change_interface_selection(device.name, device.selected);
        }
        if (gtk_widget_is_focus(choose_bt) && dlg_window_present()) {
          enable_selected_interface(device.name, device.selected);
        }
        device.locked = FALSE;
        global_capture_opts.all_ifaces = g_array_remove_index(global_capture_opts.all_ifaces, i);
        g_array_insert_val(global_capture_opts.all_ifaces, i, device);
      }
      break;
    }
  }
  if (cap_if_w) {
    gtk_widget_set_sensitive(capture_bt, !gbl_capture_in_progress && (global_capture_opts.num_selected > 0));
  }
}

/* start capture button was pressed */
static void
#ifdef HAVE_AIRPCAP
capture_do_cb(GtkWidget *capture_bt _U_, gpointer if_data)
#else
capture_do_cb(GtkWidget *capture_bt _U_, gpointer if_data _U_)
#endif
{
  if_dlg_data_t data;
  guint ifs;

  for (ifs = 0; ifs < gtk_list->len; ifs++) {
    data = g_array_index(gtk_list, if_dlg_data_t, ifs);
    gtk_widget_set_sensitive(data.choose_bt, FALSE);
    gtk_list = g_array_remove_index(gtk_list, ifs);
    g_array_insert_val(gtk_list, ifs, data);
#ifdef HAVE_AIRPCAP
    airpcap_if_active = get_airpcap_if_from_name(airpcap_if_list, gtk_label_get_text(GTK_LABEL(data.device_lb)));
    airpcap_if_selected = airpcap_if_active;
#endif
  }

  /* XXX - remove this? */
  if (global_capture_opts.save_file) {
    g_free(global_capture_opts.save_file);
    global_capture_opts.save_file = NULL;
  }

  if (global_capture_opts.ifaces->len > 1) {
    global_capture_opts.use_pcapng = TRUE;
  }
  /* stop capturing from all interfaces, we are going to do real work now ... */
  window_destroy(cap_if_w);

  capture_start_cb(NULL, NULL);
}


/* prepare capture button was pressed */
static void
capture_prepare_cb(GtkWidget *prepare_bt _U_, gpointer if_data _U_)
{
  /* stop capturing from all interfaces, we are going to do real work now ... */
  window_destroy(cap_if_w);
  if (global_capture_opts.ifaces->len > 1) {
    global_capture_opts.use_pcapng = TRUE;
  }
  capture_prep_cb(NULL, NULL);
}


#ifdef _WIN32
/* capture details button was pressed */
static void
capture_details_cb(GtkWidget *details_bt _U_, gpointer if_data)
{
  if_dlg_data_t *if_dlg_data = if_data;


  capture_if_details_open(if_dlg_data->device);
}
#endif

/* update a single interface */
static void
update_if(gchar *name, if_stat_cache_t *sc)
{
  struct pcap_stat stats;
  gchar *str;
  guint diff, ifs;
  interface_t  device;
  if_dlg_data_t data;
  gboolean  found = FALSE;


  /*
   * Note that some versions of libpcap, on some versions of UN*X,
   * pcap_stats() returns the number of packets since the last
   * pcap_stats call.
   *
   * That's a bug, and should be fixed; "pcap_stats()" is supposed
   * to work the same way on all platforms.
   */
  device.last_packets = 0;
  data.curr_lb = NULL;
  data.last_lb = NULL;
  if (sc) {
    for (ifs = 0; ifs < global_capture_opts.all_ifaces->len; ifs++) {
        device = g_array_index(global_capture_opts.all_ifaces, interface_t, ifs);
        data = g_array_index(gtk_list, if_dlg_data_t, ifs);
        if (!device.hidden && strcmp(name, device.name) == 0) {
          found = TRUE;
          break;
        }
    }
    if (found) {
      if (capture_stats(sc, name, &stats)) {
        diff = stats.ps_recv - device.last_packets;
        device.last_packets = stats.ps_recv;

        str = g_strdup_printf("%u", device.last_packets);
        gtk_label_set_text(GTK_LABEL(data.curr_lb), str);
        g_free(str);
        str = g_strdup_printf("%u", diff);
        gtk_label_set_text(GTK_LABEL(data.last_lb), str);
        g_free(str);

        gtk_widget_set_sensitive(data.curr_lb, diff);
        gtk_widget_set_sensitive(data.last_lb, diff);
      } else {
        gtk_label_set_text(GTK_LABEL(data.curr_lb), "error");
        gtk_label_set_text(GTK_LABEL(data.last_lb), "error");
      }
      global_capture_opts.all_ifaces = g_array_remove_index(global_capture_opts.all_ifaces, ifs);
      g_array_insert_val(global_capture_opts.all_ifaces, ifs, device);
      gtk_list = g_array_remove_index(gtk_list, ifs);
      g_array_insert_val(gtk_list, ifs, data);
    }
  }
}

/* update all interfaces */
static gboolean
update_all(gpointer data)
{
  interface_t device;
  guint ifs;
  if_stat_cache_t *sc = data;

  if (!cap_if_w) {
    return FALSE;
  }

  for (ifs = 0; ifs < global_capture_opts.all_ifaces->len; ifs++) {
    device = g_array_index(global_capture_opts.all_ifaces, interface_t, ifs);
    update_if(device.name, sc);
  }

  return TRUE;
}

/* a live capture has started or stopped */
void
set_capture_if_dialog_for_capture_in_progress(gboolean capture_in_progress)
{
  gbl_capture_in_progress = capture_in_progress;
  if (cap_if_w) {
    gtk_widget_set_sensitive(stop_bt, capture_in_progress);
    gtk_widget_set_sensitive(capture_bt, !capture_in_progress && (global_capture_opts.num_selected > 0));
  }
}


/* the window was closed, cleanup things */
static void
capture_if_destroy_cb(GtkWidget *win _U_, gpointer user_data _U_)
{
  g_source_remove(timer_id);

  free_interface_list(if_list);

  /* Note that we no longer have a "Capture Options" dialog box. */
  cap_if_w = NULL;

  capture_stat_stop(sc);

#ifdef HAVE_AIRPCAP
  airpcap_set_toolbar_stop_capture(airpcap_if_active);
#endif
}


/*
 * Sorts the Interface List in alphabetical order
 */
gint if_list_comparator_alph (const void *first_arg, const void *second_arg){
  const if_info_t *first = first_arg, *second = second_arg;

  if (first != NULL && first->description != NULL &&
      second != NULL && second->description != NULL) {
    return g_ascii_strcasecmp(first->description, second->description);
  } else {
    return 0;
  }
}


/*
 * Used to retrieve the interface icon.
 * This is hideously platform-dependent.
 */
GtkWidget * capture_get_if_icon(interface_t *device)
{
#ifdef HAVE_PCAP_REMOTE
  if (!device->local) {
    return pixbuf_to_widget(remote_sat_pb_data);
  }
#endif
  switch (device->type) {
#ifdef _WIN32
  case IF_DIALUP:
    return xpm_to_widget(modem_16_xpm);
#endif
  case IF_WIRELESS: 
    return pixbuf_to_widget(network_wireless_pb_data);
#ifdef HAVE_AIRPCAP
  case IF_AIRPCAP:
    return xpm_to_widget(capture_airpcap_16_xpm);
#endif
  case IF_BLUETOOTH:
    return pixbuf_to_widget(network_bluetooth_pb_data);
  case IF_USB:
    return pixbuf_to_widget(network_usb_pb_data);
  case IF_VIRTUAL:
    return xpm_to_widget(network_virtual_16_xpm);
  case IF_WIRED:
    return pixbuf_to_widget(network_wired_pb_data);
  case IF_PIPE:
  case IF_STDIN:
    return pixbuf_to_widget(pipe_pb_data);
  default:
    printf("unknown device type\n");
  }
  return pixbuf_to_widget(network_wired_pb_data);
}


static int
get_ip_addr_count(GSList *addr_list)
{
  GSList *curr_addr;
  if_addr_t *addr;
  int count;

  count = 0;
  for (curr_addr = addr_list; curr_addr != NULL;
       curr_addr = g_slist_next(curr_addr)) {
    addr = (if_addr_t *)curr_addr->data;
    switch (addr->ifat_type) {

    case IF_AT_IPv4:
    case IF_AT_IPv6:
      count++;
      break;

    default:
      /* In case we add non-IP addresses */
      break;
    }
  }
  return count;
}

static const gchar *
set_ip_addr_label(GSList *addr_list, GtkWidget *ip_lb, guint selected_ip_addr)
{
  GSList *curr_addr;
  if_addr_t *addr;
  const gchar *addr_str = NULL;

  curr_addr = g_slist_nth(addr_list, selected_ip_addr);
  if (curr_addr) {
    addr = (if_addr_t *)curr_addr->data;
    switch (addr->ifat_type) {

    case IF_AT_IPv4:
      addr_str = ip_to_str((guint8 *)&addr->addr.ip4_addr);
      break;

    case IF_AT_IPv6:
      addr_str = ip6_to_str((struct e_in6_addr *)&addr->addr.ip6_addr);
      break;

    default:
      /* Ignore non-IP addresses, in case we ever support them */
      break;
    }
  }

  if (addr_str) {
    gtk_label_set_text(GTK_LABEL(ip_lb), addr_str);
  } else {
    gtk_label_set_text(GTK_LABEL(ip_lb), "none");
  }
  g_object_set_data(G_OBJECT(ip_lb), CAPTURE_IF_SELECTED_IP_ADDR, GINT_TO_POINTER(selected_ip_addr));

  return addr_str;
}


static gboolean
ip_label_enter_cb(GtkWidget *eb, GdkEventCrossing *event _U_, gpointer user_data _U_)
{
    gtk_widget_set_state(eb, GTK_STATE_PRELIGHT);

    return FALSE;
}


static gboolean
ip_label_leave_cb(GtkWidget *eb, GdkEvent *event _U_, gpointer user_data _U_)
{
    gtk_widget_set_state(eb, GTK_STATE_NORMAL);

    return FALSE;
}


static gboolean
ip_label_press_cb(GtkWidget *widget, GdkEvent *event _U_, gpointer data)
{
  GtkWidget *ip_lb = (GtkWidget *)g_object_get_data(G_OBJECT(widget), CAPTURE_IF_IP_ADDR_LABEL);
  GSList *addr_list = (GSList *)data;
  GSList *curr_addr, *start_addr;
  if_addr_t *addr;
  guint selected_ip_addr = GPOINTER_TO_UINT(g_object_get_data(G_OBJECT(ip_lb), CAPTURE_IF_SELECTED_IP_ADDR));

  /* Select next IP address */
  start_addr = g_slist_nth(addr_list, selected_ip_addr);
  for (;;) {
    selected_ip_addr++;
    if (g_slist_length(addr_list) <= selected_ip_addr) {
      /* Wrap around */
      selected_ip_addr = 0;
    }
    curr_addr = g_slist_nth(addr_list, selected_ip_addr);
    if (curr_addr == start_addr) {
      /* We wrapped all the way around */
      break;
    }

    addr = (if_addr_t *)curr_addr->data;
    switch (addr->ifat_type) {

    case IF_AT_IPv4:
    case IF_AT_IPv6:
      goto found;

    default:
      /* In case we add non-IP addresses */
      break;
    }
  }

found:
  set_ip_addr_label(addr_list, ip_lb, selected_ip_addr);

  return FALSE;
}

static void
capture_if_stop_cb(GtkWidget *w _U_, gpointer d _U_)
{
  guint ifs;
  if_dlg_data_t data;

  for (ifs = 0; ifs < gtk_list->len; ifs++) {
    data = g_array_index(gtk_list, if_dlg_data_t, ifs);
    gtk_widget_set_sensitive(data.choose_bt, TRUE);
    gtk_list = g_array_remove_index(gtk_list, ifs);
    g_array_insert_val(gtk_list, ifs, data);
  }
  capture_stop_cb(NULL, NULL);
}

static void
make_gtk_array(void)
{
  interface_t   device;
  if_dlg_data_t data;
  guint         i;

  gtk_list = g_array_new(FALSE, FALSE, sizeof(if_dlg_data_t));

  for (i = 0; i < global_capture_opts.all_ifaces->len; i++) {
     device = g_array_index(global_capture_opts.all_ifaces, interface_t, i);
     data.device_lb  = NULL;
     data.descr_lb   = NULL;
     data.ip_lb      = NULL;
     data.curr_lb    = NULL;
     data.last_lb    = NULL;
     data.choose_bt  = NULL;
#ifdef _WIN32
     data.details_bt = NULL;
#endif
     g_array_append_val(gtk_list, data);
  }
}

/* start getting capture stats from all interfaces */
void
capture_if_cb(GtkWidget *w _U_, gpointer d _U_)
{
  GtkWidget         *main_vb,
                    *main_sw,
                    *bbox,
                    *close_bt,
                    *help_bt;

#ifdef HAVE_AIRPCAP
  GtkWidget         *decryption_cb;
#endif

  GtkWidget         *if_tb, *icon;
  GtkWidget         *if_lb;
  GtkWidget         *eb;
  GtkRequisition    requisition;
  int               row, height;
  guint             ifs;
  interface_t       device;
  GString           *if_tool_str = g_string_new("");
  const gchar       *addr_str;
  gchar             *user_descr;
  if_dlg_data_t     data;

  if (cap_if_w != NULL) {
    /* There's already a "Capture Interfaces" dialog box; reactivate it. */
    reactivate_window(cap_if_w);
    return;
  }
  
  if (global_capture_opts.all_ifaces->len == 0) {
    simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
                  "There are no interfaces on which a capture can be done.");
    return;
  }
#ifdef _WIN32
  /* Is WPcap loaded? */
  if (!has_wpcap) {
    char *detailed_err;

    detailed_err = cant_load_winpcap_err("Wireshark");
    simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", detailed_err);
    g_free(detailed_err);
    return;
  }
#endif

#ifdef HAVE_AIRPCAP
  /* LOAD AIRPCAP INTERFACES */

  decryption_cb = g_object_get_data(G_OBJECT(airpcap_tb),AIRPCAP_TOOLBAR_DECRYPTION_KEY);
  update_decryption_mode_list(decryption_cb);

  /* If no airpcap interface is present, gray everything */
  if (airpcap_if_active == NULL) {
    if (airpcap_if_list == NULL) {
      /*No airpcap device found */
      airpcap_enable_toolbar_widgets(airpcap_tb,FALSE);
    } else {
      /* default adapter is not airpcap... or is airpcap but is not found*/
      airpcap_set_toolbar_stop_capture(airpcap_if_active);
      airpcap_enable_toolbar_widgets(airpcap_tb,FALSE);
    }
  }

  airpcap_set_toolbar_start_capture(airpcap_if_active);
#endif

  make_gtk_array();
  cap_if_w = dlg_window_new("Wireshark: Capture Interfaces");  /* transient_for top_level */
  gtk_window_set_destroy_with_parent (GTK_WINDOW(cap_if_w), TRUE);

  main_sw = gtk_scrolled_window_new(NULL, NULL);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(main_sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
  gtk_container_add(GTK_CONTAINER(cap_if_w), main_sw);

  main_vb = gtk_vbox_new(FALSE, 0);
  gtk_container_set_border_width(GTK_CONTAINER(main_vb), 5);
  gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(main_sw), main_vb);

  if_tb = gtk_table_new(1,9, FALSE);
  gtk_table_set_row_spacings(GTK_TABLE(if_tb), 3);
  gtk_table_set_col_spacings(GTK_TABLE(if_tb), 3);
  gtk_box_pack_start(GTK_BOX(main_vb), if_tb, FALSE, FALSE, 0);

  row = 0;
  height = 0;

  /* This is the icon column, used to display which kind of interface we have */
  if_lb = gtk_label_new("");
  gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 0, 1, row, row+1);

#ifndef _WIN32
  /*
   * On Windows, device names are generally not meaningful - NT 5
   * uses long blobs with GUIDs in them, for example - so we don't
   * bother showing them.
   */
  if_lb = gtk_label_new("Device");
  gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 1, 4, row, row+1);
#endif
  if_lb = gtk_label_new("Description");
  gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 4, 5, row, row+1);

  if_lb = gtk_label_new(" IP ");
  gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 5, 6, row, row+1);

  if_lb = gtk_label_new("Packets");
  gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 6, 7, row, row+1);

  if_lb = gtk_label_new(" Packets/s ");
  gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 7, 8, row, row+1);
  row++;

  height += 30;
  /* Start gathering statistics (using dumpcap) */
  sc = capture_stat_start(&global_capture_opts);

  /* List the interfaces */
  for (ifs = 0; ifs < global_capture_opts.all_ifaces->len; ifs++) {
    device = g_array_index(global_capture_opts.all_ifaces, interface_t, ifs);
    data = g_array_index(gtk_list, if_dlg_data_t, ifs);
    g_string_assign(if_tool_str, "");
    /* Continue if capture device is hidden */
    if (device.hidden) {
      continue;
    }
    data.choose_bt = gtk_check_button_new();
    gtk_table_attach_defaults(GTK_TABLE(if_tb), data.choose_bt, 0, 1, row, row+1);
    if (gbl_capture_in_progress) {
      gtk_widget_set_sensitive(data.choose_bt, FALSE);
    } else {
      gtk_widget_set_sensitive(data.choose_bt, TRUE);
    }
    gtk_toggle_button_set_active((GtkToggleButton *)data.choose_bt, device.selected);
    g_signal_connect(data.choose_bt, "toggled", G_CALLBACK(store_selected), device.name);
    /* Kind of adaptor (icon) */
    icon = capture_get_if_icon(&(device));
    gtk_table_attach_defaults(GTK_TABLE(if_tb), icon, 1, 2, row, row+1);

      /* device name */
    data.device_lb = gtk_label_new(device.name);
#ifndef _WIN32
    gtk_misc_set_alignment(GTK_MISC(data.device_lb), 0.0f, 0.5f);
    gtk_table_attach_defaults(GTK_TABLE(if_tb), data.device_lb, 2, 4, row, row+1);
#endif
    g_string_append(if_tool_str, "Device: ");
    g_string_append(if_tool_str, device.name);
    g_string_append(if_tool_str, "\n");

    /* description */
    user_descr = capture_dev_user_descr_find(device.name);
    if (user_descr) {
      data.descr_lb = gtk_label_new(user_descr);
      g_free (user_descr);
    } else {
      if (device.if_info.description)
        data.descr_lb = gtk_label_new(device.if_info.description);
      else
        data.descr_lb = gtk_label_new("");
    }
    gtk_misc_set_alignment(GTK_MISC(data.descr_lb), 0.0f, 0.5f);
    gtk_table_attach_defaults(GTK_TABLE(if_tb), data.descr_lb, 4, 5, row, row+1);
    if (device.if_info.description) {
      g_string_append(if_tool_str, "Description: ");
      g_string_append(if_tool_str, device.if_info.description);
      g_string_append(if_tool_str, "\n");
    }

    /* IP address */
    /* Only one IP address will be shown, start with the first */
    g_string_append(if_tool_str, "IP: ");
    data.ip_lb = gtk_label_new("");
    addr_str = set_ip_addr_label (device.if_info.addrs, data.ip_lb, 0);
    if (addr_str) {
      gtk_widget_set_sensitive(data.ip_lb, TRUE);
      g_string_append(if_tool_str, addr_str);
    } else {
      gtk_widget_set_sensitive(data.ip_lb, FALSE);
      g_string_append(if_tool_str, "none");
    }
    eb = gtk_event_box_new ();
    gtk_container_add(GTK_CONTAINER(eb), data.ip_lb);
    gtk_table_attach_defaults(GTK_TABLE(if_tb), eb, 5, 6, row, row+1);
    if (get_ip_addr_count(device.if_info.addrs) > 1) {
      /* More than one IP address, make it possible to toggle */
      g_object_set_data(G_OBJECT(eb), CAPTURE_IF_IP_ADDR_LABEL, data.ip_lb);
      g_signal_connect(eb, "enter-notify-event", G_CALLBACK(ip_label_enter_cb), NULL);
      g_signal_connect(eb, "leave-notify-event", G_CALLBACK(ip_label_leave_cb), NULL);
      g_signal_connect(eb, "button-press-event", G_CALLBACK(ip_label_press_cb), device.if_info.addrs);
    }
    g_string_append(if_tool_str, "\n");

    /* packets */
    data.curr_lb = gtk_label_new("-");
    gtk_table_attach_defaults(GTK_TABLE(if_tb), data.curr_lb, 6, 7, row, row+1);

    /* packets/s */
    data.last_lb = gtk_label_new("-");
    gtk_table_attach_defaults(GTK_TABLE(if_tb), data.last_lb, 7, 8, row, row+1);

    /* details button */
#ifdef _WIN32
    data.details_bt = gtk_button_new_from_stock(WIRESHARK_STOCK_CAPTURE_DETAILS);
    gtk_widget_set_tooltip_text(data.details_bt, "Open the capture details dialog of this interface.");
    gtk_table_attach_defaults(GTK_TABLE(if_tb), data.details_bt, 8, 9, row, row+1);
    if (capture_if_has_details(device.name)) {
      g_signal_connect(data.details_bt, "clicked", G_CALLBACK(capture_details_cb), device.name);
    } else {
      gtk_widget_set_sensitive(data.details_bt, FALSE);
    }
#endif
    gtk_list = g_array_remove_index(gtk_list, ifs);
    g_array_insert_val(gtk_list, ifs, data);
    
    row++;
    if (row <= 10) {
        /* Lets add up 10 rows of interfaces, otherwise the window may become too high */
      gtk_widget_get_preferred_size(GTK_WIDGET(data.choose_bt), &requisition, NULL);
      height += requisition.height;
    } 
  }

  g_string_free(if_tool_str, TRUE);

  /* Button row: close, help, stop, start, and options button */
  bbox = dlg_button_row_new(GTK_STOCK_HELP, WIRESHARK_STOCK_CAPTURE_START, WIRESHARK_STOCK_CAPTURE_OPTIONS, WIRESHARK_STOCK_CAPTURE_STOP, GTK_STOCK_CLOSE, NULL);

  gtk_box_pack_start(GTK_BOX(main_vb), bbox, FALSE, FALSE, 5);
  help_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_HELP);
  g_signal_connect(help_bt, "clicked", G_CALLBACK(topic_cb), (gpointer)(HELP_CAPTURE_INTERFACES_DIALOG));

  stop_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), WIRESHARK_STOCK_CAPTURE_STOP);
  g_signal_connect(stop_bt, "clicked", G_CALLBACK(capture_if_stop_cb), NULL);
  close_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_CLOSE);
  window_set_cancel_button(cap_if_w, close_bt, window_cancel_button_cb);
  gtk_widget_set_tooltip_text(close_bt, "Close this window.");
  options_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), WIRESHARK_STOCK_CAPTURE_OPTIONS);
  g_signal_connect(options_bt, "clicked", G_CALLBACK(capture_prepare_cb), device.name);
  capture_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), WIRESHARK_STOCK_CAPTURE_START);
  g_signal_connect(capture_bt, "clicked", G_CALLBACK(capture_do_cb), device.name);
  gtk_widget_get_preferred_size(GTK_WIDGET(close_bt), &requisition, NULL);
  /* height + static offset + what the GTK MS Windows Engine needs in addition per interface */
  height += requisition.height + 40 + ifs;
  gtk_window_set_default_size(GTK_WINDOW(cap_if_w), -1, height);

  gtk_widget_grab_default(close_bt);

  g_signal_connect(cap_if_w, "delete_event", G_CALLBACK(window_delete_event_cb), NULL);
  g_signal_connect(cap_if_w, "destroy", G_CALLBACK(capture_if_destroy_cb), sc);

  gtk_widget_show_all(cap_if_w);
  window_present(cap_if_w);

  set_capture_if_dialog_for_capture_in_progress(gbl_capture_in_progress);

  /* update the interface list every 1000ms */
  timer_id = g_timeout_add(1000, update_all, sc);
}

gboolean interfaces_dialog_window_present(void)
{
  return (cap_if_w?TRUE:FALSE);
}

void refresh_if_window(void)
{
  capture_if_destroy_cb(NULL, NULL);
  capture_if_cb(NULL, NULL);
}

void select_all_interfaces(gboolean enable _U_)
{
  guint ifs;
  interface_t device;

  for (ifs = 0; ifs < global_capture_opts.all_ifaces->len; ifs++) {
    device = g_array_index(global_capture_opts.all_ifaces, interface_t, ifs);
    update_selected_interface(device.if_info.name);
  }
}

void destroy_if_window(void)
{
  if (cap_if_w) {
    window_destroy(cap_if_w);
  }
}
#else /* HAVE_LIBPCAP */

void
set_capture_if_dialog_for_capture_in_progress(gboolean capture_in_progress _U_)
{
}

#endif /* HAVE_LIBPCAP */