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wireshark/gtk/capture_if_dlg.c

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/* 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
#ifdef HAVE_LIBPCAP
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#include <gtk/gtk.h>
#include "globals.h"
#include "capture-pcap-util.h"
#ifdef _WIN32
#include "capture-wpcap.h"
#endif
#include "compat_macros.h"
#include "simple_dialog.h"
#include "capture.h"
#include "capture_dlg.h"
#include "capture_if_details_dlg.h"
#include "capture_errs.h"
#include "capture_ui_utils.h"
#include "recent.h"
#include <epan/prefs.h>
#include "gui_utils.h"
#include "dlg_utils.h"
#include "main.h"
#include "wtap.h"
#include "help_dlg.h"
#include "toolbar.h"
#include "keys.h"
#include "webbrowser.h"
#ifdef HAVE_AIRPCAP
#include "../image/toolbar/capture_airpcap_16.xpm"
#endif
#include "../image/toolbar/capture_ethernet_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
/*
* 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;
#ifdef HAVE_AIRPCAP
static GtkWidget *cap_air_w;
#endif
GList *if_data = NULL;
guint timer_id;
GtkWidget *stop_bt;
GList *if_list;
/*
* 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 {
GtkWidget *device_lb;
GtkWidget *descr_lb;
GtkWidget *ip_lb;
GtkWidget *curr_lb;
GtkWidget *last_lb;
GtkWidget *capture_bt;
GtkWidget *prepare_bt;
#ifdef _WIN32
GtkWidget *details_bt;
#endif
guint32 last_packets;
gchar *device;
if_info_t if_info;
} if_dlg_data_t;
/* start capture button was pressed */
static void
capture_do_cb(GtkWidget *capture_bt _U_, gpointer if_data)
{
if_dlg_data_t *if_dlg_data = if_data;
#ifdef HAVE_AIRPCAP
airpcap_if_active = get_airpcap_if_from_name(airpcap_if_list, if_dlg_data->if_info.name);
airpcap_if_selected = airpcap_if_active;
#endif
if (capture_opts->iface)
g_free(capture_opts->iface);
if (capture_opts->iface_descr)
g_free(capture_opts->iface_descr);
capture_opts->iface = g_strdup(if_dlg_data->device);
capture_opts->iface_descr = get_interface_descriptive_name(capture_opts->iface);
/* XXX - remove this? */
if (capture_opts->save_file) {
g_free(capture_opts->save_file);
capture_opts->save_file = NULL;
}
/* 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)
{
if_dlg_data_t *if_dlg_data = if_data;
if (capture_opts->iface)
g_free(capture_opts->iface);
if (capture_opts->iface_descr)
g_free(capture_opts->iface_descr);
capture_opts->iface = g_strdup(if_dlg_data->device);
capture_opts->iface_descr = get_interface_descriptive_name(capture_opts->iface);
/* stop capturing from all interfaces, we are going to do real work now ... */
window_destroy(cap_if_w);
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 */
void
update_if(if_dlg_data_t *if_dlg_data, if_stat_cache_t *sc)
{
struct pcap_stat stats;
gchar *str;
guint diff;
/* pcap_stats() stats values differ on libpcap and winpcap!
* libpcap: returns the number of packets since pcap_open_live
* winpcap: returns the number of packets since the last pcap_stats call
* XXX - if that's true, that's a bug, and should be fixed; "pcap_stats()"
* is supposed to work the same way on all platforms, including Windows.
* Note that the WinPcap 3.0 documentation says "The values represent
* packet statistics from the start of the run to the time of the call."
* (Note also that some versions of libpcap, on some versions of UN*X,
* have the same bug.)
*/
if (sc) {
if(capture_stats(sc, if_dlg_data->device, &stats)) {
#ifdef _WIN32
diff = stats.ps_recv - if_dlg_data->last_packets;
if_dlg_data->last_packets = stats.ps_recv;
#else
diff = stats.ps_recv;
if_dlg_data->last_packets = stats.ps_recv + if_dlg_data->last_packets;
#endif
str = g_strdup_printf("%u", if_dlg_data->last_packets);
gtk_label_set_text(GTK_LABEL(if_dlg_data->curr_lb), str);
g_free(str);
str = g_strdup_printf("%u", diff);
gtk_label_set_text(GTK_LABEL(if_dlg_data->last_lb), str);
g_free(str);
gtk_widget_set_sensitive(if_dlg_data->curr_lb, diff);
gtk_widget_set_sensitive(if_dlg_data->last_lb, diff);
} else {
gtk_label_set_text(GTK_LABEL(if_dlg_data->curr_lb), "error");
gtk_label_set_text(GTK_LABEL(if_dlg_data->last_lb), "error");
}
}
}
/* update all interfaces */
static gboolean
update_all(gpointer data)
{
GList *curr;
int ifs;
if_stat_cache_t *sc = data;
if(!cap_if_w) {
return FALSE;
}
for(ifs = 0; (curr = g_list_nth(if_data, ifs)); ifs++) {
update_if(curr->data, sc);
}
return TRUE;
}
/* a live capture has started or stopped */
void
set_capture_if_dialog_for_capture_in_progress(gboolean capture_in_progress)
{
GList *curr;
int ifs;
if(cap_if_w) {
gtk_widget_set_sensitive(stop_bt, capture_in_progress);
for(ifs = 0; (curr = g_list_nth(if_data, ifs)); ifs++) {
if_dlg_data_t *if_dlg_data = curr->data;
gtk_widget_set_sensitive(if_dlg_data->capture_bt, !capture_in_progress);
gtk_widget_set_sensitive(if_dlg_data->prepare_bt, !capture_in_progress);
}
}
}
/* the window was closed, cleanup things */
static void
capture_if_destroy_cb(GtkWidget *win _U_, gpointer user_data)
{
GList *curr;
int ifs;
if_stat_cache_t *sc = user_data;
gtk_timeout_remove(timer_id);
for(ifs = 0; (curr = g_list_nth(if_data, ifs)); ifs++) {
g_free(curr->data);
}
if_data = NULL;
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
}
GtkWidget*
combo_channel_new(void)
{
GtkWidget* channel_cb;
GList* popdown;
channel_cb = gtk_combo_new();
gtk_entry_set_text(GTK_ENTRY(GTK_COMBO(channel_cb)->entry), "1");
popdown = NULL;
popdown = g_list_append(popdown, "1");
popdown = g_list_append(popdown, "2");
popdown = g_list_append(popdown, "3");
popdown = g_list_append(popdown, "4");
popdown = g_list_append(popdown, "5");
popdown = g_list_append(popdown, "6");
popdown = g_list_append(popdown, "7");
popdown = g_list_append(popdown, "8");
popdown = g_list_append(popdown, "9");
popdown = g_list_append(popdown, "10");
popdown = g_list_append(popdown, "11");
popdown = g_list_append(popdown, "12");
popdown = g_list_append(popdown, "13");
popdown = g_list_append(popdown, "14");
gtk_combo_set_popdown_strings( GTK_COMBO(channel_cb), popdown) ;
#if GTK_MAJOR_VERSION < 2
gtk_widget_set_usize( GTK_WIDGET(channel_cb),
45,
10 );
#else
gtk_widget_set_size_request( GTK_WIDGET(channel_cb),
45,
10 );
#endif
return channel_cb;
}
/*
* 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_strcasecmp(first->description, second->description);
} else {
return 0;
}
}
/* 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,
*icon;
#ifdef HAVE_AIRPCAP
GtkWidget *decryption_cm;
#endif
GtkWidget *if_tb;
GtkWidget *if_lb;
#if GTK_MAJOR_VERSION < 2
GtkAccelGroup *accel_group;
#endif
GtkTooltips *tooltips;
int err;
gchar *err_str;
GtkRequisition requisition;
int row, height;
if_dlg_data_t *if_dlg_data;
int ifs;
GList *curr;
if_info_t *if_info;
GSList *curr_ip;
if_addr_t *ip_addr;
GString *if_tool_str = g_string_new("");
gchar *tmp_str;
if_stat_cache_t *sc;
if (cap_if_w != NULL) {
/* There's already a "Capture Interfaces" dialog box; reactivate it. */
reactivate_window(cap_if_w);
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
/* LOAD THE INTERFACES */
if_list = capture_interface_list(&err, &err_str);
if_list = g_list_sort (if_list, if_list_comparator_alph);
if (if_list == NULL && err == CANT_GET_INTERFACE_LIST) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", err_str);
g_free(err_str);
return;
}
#ifdef HAVE_AIRPCAP
/* LOAD AIRPCAP INTERFACES */
airpcap_if_list = get_airpcap_interface_list(&err, &err_str);
if (airpcap_if_list == NULL)
airpcap_if_active = airpcap_if_selected = NULL;
decryption_cm = OBJECT_GET_DATA(airpcap_tb,AIRPCAP_TOOLBAR_DECRYPTION_KEY);
update_decryption_mode_list(decryption_cm);
if (airpcap_if_list == NULL && err == CANT_GET_AIRPCAP_INTERFACE_LIST) {
#if 0
/* XXX - Do we need to show an error here? */
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", err_str);
#endif
g_free(err_str);
}
/* 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
cap_if_w = window_new(GTK_WINDOW_TOPLEVEL, "Wireshark: Capture Interfaces");
tooltips = gtk_tooltips_new();
#if GTK_MAJOR_VERSION < 2
/* Accelerator group for the accelerators (or, as they're called in
Windows and, I think, in Motif, "mnemonics"; Alt+<key> is a mnemonic,
Ctrl+<key> is an accelerator). */
accel_group = gtk_accel_group_new();
gtk_window_add_accel_group(GTK_WINDOW(cap_if_w), accel_group);
#endif
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_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, 2, row, row+1);
#endif
if_lb = gtk_label_new("Description");
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 2, 3, row, row+1);
if_lb = gtk_label_new(" IP ");
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 3, 4, row, row+1);
if_lb = gtk_label_new("Packets");
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 4, 5, row, row+1);
if_lb = gtk_label_new(" Packets/s ");
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_lb, 5, 6, row, row+1);
stop_bt = BUTTON_NEW_FROM_STOCK(WIRESHARK_STOCK_CAPTURE_STOP);
gtk_tooltips_set_tip(tooltips, stop_bt,
"Stop a running capture.", NULL);
#ifdef _WIN32
gtk_table_attach_defaults(GTK_TABLE(if_tb), stop_bt, 6, 9, row, row+1);
#else
gtk_table_attach_defaults(GTK_TABLE(if_tb), stop_bt, 6, 8, row, row+1);
#endif
SIGNAL_CONNECT(stop_bt, "clicked", capture_stop_cb, NULL);
row++;
gtk_widget_size_request(stop_bt, &requisition);
height += requisition.height + 15;
/* Start gathering statistics (using dumpcap) */
sc = capture_stat_start(if_list);
/* List the interfaces */
for(ifs = 0; (curr = g_list_nth(if_list, ifs)); ifs++) {
g_string_assign(if_tool_str, "");
if_info = curr->data;
if_dlg_data = g_malloc0(sizeof(if_dlg_data_t));
if_dlg_data->if_info = *if_info;
/* Kind of adaptor (icon) */
#ifdef HAVE_AIRPCAP
if(get_airpcap_if_from_name(airpcap_if_list,if_info->name) != NULL)
icon = xpm_to_widget(capture_airpcap_16_xpm);
else
icon = xpm_to_widget(capture_ethernet_16_xpm);
#else
icon = xpm_to_widget(capture_ethernet_16_xpm);
#endif
gtk_table_attach_defaults(GTK_TABLE(if_tb), icon, 0, 1, row, row+1);
/* device name */
if_dlg_data->device_lb = gtk_label_new(if_info->name);
if_dlg_data->device = if_info->name;
#ifndef _WIN32
gtk_misc_set_alignment(GTK_MISC(if_dlg_data->device_lb), 0.0, 0.5);
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->device_lb, 1, 2, row, row+1);
#endif
g_string_append(if_tool_str, "Device: ");
g_string_append(if_tool_str, if_info->name);
g_string_append(if_tool_str, "\n");
/* description */
if (if_info->description != NULL)
if_dlg_data->descr_lb = gtk_label_new(if_info->description);
else
if_dlg_data->descr_lb = gtk_label_new("");
gtk_misc_set_alignment(GTK_MISC(if_dlg_data->descr_lb), 0.0, 0.5);
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->descr_lb, 2, 3, row, row+1);
if (if_info->description) {
g_string_append(if_tool_str, "Description: ");
g_string_append(if_tool_str, if_info->description);
g_string_append(if_tool_str, "\n");
}
/* IP address */
/* only the first IP address will be shown */
g_string_append(if_tool_str, "IP: ");
curr_ip = g_slist_nth(if_info->ip_addr, 0);
if(curr_ip) {
ip_addr = (if_addr_t *)curr_ip->data;
switch (ip_addr->type) {
case AT_IPv4:
tmp_str = ip_to_str((guint8 *)&ip_addr->ip_addr.ip4_addr);
break;
case AT_IPv6:
tmp_str = ip6_to_str((struct e_in6_addr *)&ip_addr->ip_addr.ip6_addr);
break;
default:
g_assert_not_reached();
tmp_str = NULL;
}
if_dlg_data->ip_lb = gtk_label_new(tmp_str);
gtk_widget_set_sensitive(if_dlg_data->ip_lb, TRUE);
g_string_append(if_tool_str, tmp_str);
} else {
if_dlg_data->ip_lb = gtk_label_new("unknown");
gtk_widget_set_sensitive(if_dlg_data->ip_lb, FALSE);
g_string_append(if_tool_str, "unknown");
}
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->ip_lb, 3, 4, row, row+1);
g_string_append(if_tool_str, "\n");
/* packets */
if_dlg_data->curr_lb = gtk_label_new("-");
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->curr_lb, 4, 5, row, row+1);
/* packets/s */
if_dlg_data->last_lb = gtk_label_new("-");
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->last_lb, 5, 6, row, row+1);
/* capture button */
if_dlg_data->capture_bt = BUTTON_NEW_FROM_STOCK(WIRESHARK_STOCK_CAPTURE_START);
SIGNAL_CONNECT(if_dlg_data->capture_bt, "clicked", capture_do_cb, if_dlg_data);
tmp_str = g_strdup_printf("Immediately start a capture from this interface:\n\n%s", if_tool_str->str);
gtk_tooltips_set_tip(tooltips, if_dlg_data->capture_bt,
tmp_str, NULL);
g_free(tmp_str);
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->capture_bt, 6, 7, row, row+1);
/* prepare button */
if_dlg_data->prepare_bt = BUTTON_NEW_FROM_STOCK(WIRESHARK_STOCK_CAPTURE_OPTIONS);
SIGNAL_CONNECT(if_dlg_data->prepare_bt, "clicked", capture_prepare_cb, if_dlg_data);
gtk_tooltips_set_tip(tooltips, if_dlg_data->prepare_bt,
"Open the capture options dialog with this interface selected.", NULL);
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->prepare_bt, 7, 8, row, row+1);
/* details button */
#ifdef _WIN32
if_dlg_data->details_bt = BUTTON_NEW_FROM_STOCK(WIRESHARK_STOCK_CAPTURE_DETAILS);
SIGNAL_CONNECT(if_dlg_data->details_bt, "clicked", capture_details_cb, if_dlg_data);
gtk_tooltips_set_tip(tooltips, if_dlg_data->details_bt,
"Open the capture details dialog of this interface.", NULL);
gtk_table_attach_defaults(GTK_TABLE(if_tb), if_dlg_data->details_bt, 8, 9, row, row+1);
#endif
if_data = g_list_append(if_data, if_dlg_data);
row++;
if (row <= 10) {
/* Lets add up 10 rows of interfaces, otherwise the window may become too high */
gtk_widget_size_request(GTK_WIDGET(if_dlg_data->prepare_bt), &requisition);
height += requisition.height;
}
}
g_string_free(if_tool_str, TRUE);
/* Button row: close button */
if(topic_available(HELP_CAPTURE_INTERFACES_DIALOG)) {
bbox = dlg_button_row_new(GTK_STOCK_CLOSE, GTK_STOCK_HELP, NULL);
} else {
bbox = dlg_button_row_new(GTK_STOCK_CLOSE, NULL);
}
gtk_box_pack_start(GTK_BOX(main_vb), bbox, FALSE, FALSE, 5);
close_bt = OBJECT_GET_DATA(bbox, GTK_STOCK_CLOSE);
window_set_cancel_button(cap_if_w, close_bt, window_cancel_button_cb);
gtk_tooltips_set_tip(tooltips, close_bt, "Close this window.", NULL);
if(topic_available(HELP_CAPTURE_INTERFACES_DIALOG)) {
help_bt = OBJECT_GET_DATA(bbox, GTK_STOCK_HELP);
SIGNAL_CONNECT(help_bt, "clicked", topic_cb, HELP_CAPTURE_INTERFACES_DIALOG);
}
gtk_widget_size_request(GTK_WIDGET(close_bt), &requisition);
/* height + static offset + what GTK-Wimp needs in addition per interface */
height += requisition.height + 20 + ifs;
gtk_window_set_default_size(GTK_WINDOW(cap_if_w), -1, height);
gtk_widget_grab_default(close_bt);
SIGNAL_CONNECT(cap_if_w, "delete_event", window_delete_event_cb, NULL);
SIGNAL_CONNECT(cap_if_w, "destroy", 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(is_capture_in_progress());
/* update the interface list every 1000ms */
timer_id = gtk_timeout_add(1000, update_all, sc);
}
#endif /* HAVE_LIBPCAP */
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