/* capture_dlg.c * Routines for packet capture windows * * $Id: capture_dlg.c,v 1.19 2000/02/12 06:46:51 guy Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * 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 #include #include #include #include #ifdef HAVE_UNISTD_H #include #endif #include #ifdef NEED_SNPRINTF_H # ifdef HAVE_STDARG_H # include # else # include # endif # include "snprintf.h" #endif #include "capture.h" #include "globals.h" #include "main.h" #include "capture_dlg.h" #include "filter_prefs.h" #include "simple_dialog.h" #include "util.h" /* Capture callback data keys */ #define E_CAP_IFACE_KEY "cap_iface" #define E_CAP_FILT_KEY "cap_filter_te" #define E_CAP_FILE_TE_KEY "cap_file_te" #define E_CAP_COUNT_KEY "cap_count" #define E_CAP_SNAP_KEY "cap_snap" #define E_CAP_SYNC_KEY "cap_sync" #define E_CAP_AUTO_SCROLL_KEY "cap_auto_scroll" #define E_CAP_RESOLVE_KEY "cap_resolve" static void capture_prep_file_cb(GtkWidget *w, gpointer te); static void cap_prep_fs_ok_cb(GtkWidget *w, gpointer data); static void cap_prep_fs_cancel_cb(GtkWidget *w, gpointer data); static void capture_prep_ok_cb(GtkWidget *ok_bt, gpointer parent_w); static void capture_prep_close_cb(GtkWidget *close_bt, gpointer parent_w); void capture_prep_cb(GtkWidget *w, gpointer d) { GtkWidget *cap_open_w, *if_cb, *if_lb, *count_lb, *count_cb, *main_vb, *if_hb, *count_hb, *filter_hb, *filter_bt, *filter_te, *file_hb, *file_bt, *file_te, *caplen_hb, *bbox, *ok_bt, *cancel_bt, *snap_lb, *snap_sb, *sync_cb, *auto_scroll_cb, *resolv_cb; GtkAdjustment *adj; GList *if_list, *count_list = NULL; gchar *count_item1 = "0 (Infinite)", count_item2[16]; int err; char err_str[PCAP_ERRBUF_SIZE]; if_list = get_interface_list(&err, err_str); if (if_list == NULL && err == CANT_GET_INTERFACE_LIST) { simple_dialog(ESD_TYPE_WARN, NULL, "Can't get list of interfaces: %s", err_str); } cap_open_w = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(cap_open_w), "Ethereal: Capture Preferences"); /* Container for each row of widgets */ main_vb = gtk_vbox_new(FALSE, 3); gtk_container_border_width(GTK_CONTAINER(main_vb), 5); gtk_container_add(GTK_CONTAINER(cap_open_w), main_vb); gtk_widget_show(main_vb); /* Interface row */ if_hb = gtk_hbox_new(FALSE, 3); gtk_container_add(GTK_CONTAINER(main_vb), if_hb); gtk_widget_show(if_hb); if_lb = gtk_label_new("Interface:"); gtk_box_pack_start(GTK_BOX(if_hb), if_lb, FALSE, FALSE, 0); gtk_widget_show(if_lb); if_cb = gtk_combo_new(); if (if_list != NULL) gtk_combo_set_popdown_strings(GTK_COMBO(if_cb), if_list); if (cf.iface) gtk_entry_set_text(GTK_ENTRY(GTK_COMBO(if_cb)->entry), cf.iface); else if (if_list) gtk_entry_set_text(GTK_ENTRY(GTK_COMBO(if_cb)->entry), if_list->data); gtk_box_pack_start(GTK_BOX(if_hb), if_cb, FALSE, FALSE, 0); gtk_widget_show(if_cb); free_interface_list(if_list); /* Count row */ count_hb = gtk_hbox_new(FALSE, 3); gtk_container_add(GTK_CONTAINER(main_vb), count_hb); gtk_widget_show(count_hb); count_lb = gtk_label_new("Count:"); gtk_box_pack_start(GTK_BOX(count_hb), count_lb, FALSE, FALSE, 0); gtk_widget_show(count_lb); count_list = g_list_append(count_list, count_item1); if (cf.count) { snprintf(count_item2, 15, "%d", cf.count); count_list = g_list_append(count_list, count_item2); } count_cb = gtk_combo_new(); gtk_combo_set_popdown_strings(GTK_COMBO(count_cb), count_list); gtk_box_pack_start(GTK_BOX(count_hb), count_cb, FALSE, FALSE, 0); gtk_widget_show(count_cb); while (count_list) count_list = g_list_remove_link(count_list, count_list); /* Filter row */ filter_hb = gtk_hbox_new(FALSE, 3); gtk_container_add(GTK_CONTAINER(main_vb), filter_hb); gtk_widget_show(filter_hb); filter_bt = gtk_button_new_with_label("Filter:"); gtk_signal_connect(GTK_OBJECT(filter_bt), "clicked", GTK_SIGNAL_FUNC(filter_dialog_cb), NULL); gtk_box_pack_start(GTK_BOX(filter_hb), filter_bt, FALSE, TRUE, 0); gtk_widget_show(filter_bt); filter_te = gtk_entry_new(); if (cf.cfilter) gtk_entry_set_text(GTK_ENTRY(filter_te), cf.cfilter); gtk_object_set_data(GTK_OBJECT(filter_bt), E_FILT_TE_PTR_KEY, filter_te); gtk_box_pack_start(GTK_BOX(filter_hb), filter_te, TRUE, TRUE, 0); gtk_widget_show(filter_te); /* File row */ file_hb = gtk_hbox_new(FALSE, 1); gtk_container_add(GTK_CONTAINER(main_vb), file_hb); gtk_widget_show(file_hb); file_bt = gtk_button_new_with_label("File:"); gtk_box_pack_start(GTK_BOX(file_hb), file_bt, FALSE, FALSE, 3); gtk_widget_show(file_bt); file_te = gtk_entry_new(); gtk_box_pack_start(GTK_BOX(file_hb), file_te, TRUE, TRUE, 3); gtk_widget_show(file_te); gtk_signal_connect(GTK_OBJECT(file_bt), "clicked", GTK_SIGNAL_FUNC(capture_prep_file_cb), GTK_OBJECT(file_te)); /* Misc row: Capture file checkbox and snap spinbutton */ caplen_hb = gtk_hbox_new(FALSE, 3); gtk_container_add(GTK_CONTAINER(main_vb), caplen_hb); gtk_widget_show(caplen_hb); snap_lb = gtk_label_new("Capture length"); gtk_misc_set_alignment(GTK_MISC(snap_lb), 0, 0.5); gtk_box_pack_start(GTK_BOX(caplen_hb), snap_lb, FALSE, FALSE, 6); gtk_widget_show(snap_lb); adj = (GtkAdjustment *) gtk_adjustment_new((float) cf.snap, MIN_PACKET_SIZE, WTAP_MAX_PACKET_SIZE, 1.0, 10.0, 0.0); snap_sb = gtk_spin_button_new (adj, 0, 0); gtk_spin_button_set_wrap (GTK_SPIN_BUTTON (snap_sb), TRUE); gtk_widget_set_usize (snap_sb, 80, 0); gtk_box_pack_start (GTK_BOX(caplen_hb), snap_sb, FALSE, FALSE, 3); gtk_widget_show(snap_sb); sync_cb = gtk_check_button_new_with_label("Update list of packets in real time"); gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(sync_cb), sync_mode); gtk_container_add(GTK_CONTAINER(main_vb), sync_cb); gtk_widget_show(sync_cb); auto_scroll_cb = gtk_check_button_new_with_label("Automatic scrolling in live capture"); gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(auto_scroll_cb), auto_scroll_live); gtk_container_add(GTK_CONTAINER(main_vb), auto_scroll_cb); gtk_widget_show(auto_scroll_cb); resolv_cb = gtk_check_button_new_with_label("Enable name resolution"); gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(resolv_cb), g_resolving_actif); gtk_container_add(GTK_CONTAINER(main_vb), resolv_cb); gtk_widget_show(resolv_cb); /* Button row: OK and cancel buttons */ bbox = gtk_hbutton_box_new(); gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END); gtk_button_box_set_spacing(GTK_BUTTON_BOX(bbox), 5); gtk_container_add(GTK_CONTAINER(main_vb), bbox); gtk_widget_show(bbox); ok_bt = gtk_button_new_with_label ("OK"); gtk_signal_connect(GTK_OBJECT(ok_bt), "clicked", GTK_SIGNAL_FUNC(capture_prep_ok_cb), GTK_OBJECT(cap_open_w)); GTK_WIDGET_SET_FLAGS(ok_bt, GTK_CAN_DEFAULT); gtk_box_pack_start (GTK_BOX (bbox), ok_bt, TRUE, TRUE, 0); gtk_widget_grab_default(ok_bt); gtk_widget_show(ok_bt); cancel_bt = gtk_button_new_with_label ("Cancel"); gtk_signal_connect(GTK_OBJECT(cancel_bt), "clicked", GTK_SIGNAL_FUNC(capture_prep_close_cb), GTK_OBJECT(cap_open_w)); GTK_WIDGET_SET_FLAGS(cancel_bt, GTK_CAN_DEFAULT); gtk_box_pack_start (GTK_BOX (bbox), cancel_bt, TRUE, TRUE, 0); gtk_widget_show(cancel_bt); /* Attach pointers to needed widgets to the capture prefs window/object */ gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_IFACE_KEY, if_cb); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_FILT_KEY, filter_te); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_FILE_TE_KEY, file_te); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_COUNT_KEY, count_cb); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_SNAP_KEY, snap_sb); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_SYNC_KEY, sync_cb); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_AUTO_SCROLL_KEY, auto_scroll_cb); gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_RESOLVE_KEY, resolv_cb); gtk_widget_show(cap_open_w); } static void capture_prep_file_cb(GtkWidget *w, gpointer file_te) { GtkWidget *fs; fs = gtk_file_selection_new ("Ethereal: Capture File"); gtk_object_set_data(GTK_OBJECT(fs), E_CAP_FILE_TE_KEY, file_te); gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION(fs)->ok_button), "clicked", (GtkSignalFunc) cap_prep_fs_ok_cb, fs); /* Connect the cancel_button to destroy the widget */ gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION(fs)->cancel_button), "clicked", (GtkSignalFunc) cap_prep_fs_cancel_cb, fs); gtk_widget_show(fs); } static void cap_prep_fs_ok_cb(GtkWidget *w, gpointer data) { gtk_entry_set_text(GTK_ENTRY(gtk_object_get_data(GTK_OBJECT(data), E_CAP_FILE_TE_KEY)), gtk_file_selection_get_filename (GTK_FILE_SELECTION(data))); gtk_widget_destroy(GTK_WIDGET(data)); } static void cap_prep_fs_cancel_cb(GtkWidget *w, gpointer data) { gtk_widget_destroy(GTK_WIDGET(data)); } static void capture_prep_ok_cb(GtkWidget *ok_bt, gpointer parent_w) { GtkWidget *if_cb, *filter_te, *file_te, *count_cb, *snap_sb, *sync_cb, *auto_scroll_cb, *resolv_cb; gchar *if_text; gchar *if_name; gchar *filter_text; gchar *save_file; if_cb = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_IFACE_KEY); filter_te = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_FILT_KEY); file_te = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_FILE_TE_KEY); count_cb = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_COUNT_KEY); snap_sb = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_SNAP_KEY); sync_cb = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_SYNC_KEY); auto_scroll_cb = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_AUTO_SCROLL_KEY); resolv_cb = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_CAP_RESOLVE_KEY); if_text = g_strdup(gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(if_cb)->entry))); if_name = strtok(if_text, " \t"); if (if_name == NULL) { simple_dialog(ESD_TYPE_WARN, NULL, "You didn't specify an interface on which to capture packets."); g_free(if_name); return; } if (cf.iface) g_free(cf.iface); cf.iface = g_strdup(if_name); g_free(if_text); /* XXX - don't try to get clever and set "cf.filter" to NULL if the filter string is empty, as an indication that we don't have a filter and thus don't have to set a filter when capturing - the version of libpcap in Red Hat Linux 6.1, and versions based on later patches in that series, don't bind the AF_PACKET socket to an interface until a filter is set, which means they aren't bound at all if no filter is set, which means no packets arrive as input on that socket, which means Ethereal never sees any packets. */ filter_text = gtk_entry_get_text(GTK_ENTRY(filter_te)); if (cf.cfilter) g_free(cf.cfilter); g_assert(filter_text != NULL); cf.cfilter = g_strdup(filter_text); save_file = gtk_entry_get_text(GTK_ENTRY(file_te)); if (save_file && save_file[0]) { /* User specified a file to which the capture should be written. */ save_file = g_strdup(save_file); } else { /* User didn't specify a file; save to a temporary file. */ save_file = NULL; } cf.count = atoi(gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(count_cb)->entry))); cf.snap = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(snap_sb)); if (cf.snap < 1) cf.snap = WTAP_MAX_PACKET_SIZE; else if (cf.snap < MIN_PACKET_SIZE) cf.snap = MIN_PACKET_SIZE; sync_mode = GTK_TOGGLE_BUTTON (sync_cb)->active; auto_scroll_live = GTK_TOGGLE_BUTTON (auto_scroll_cb)->active; g_resolving_actif = GTK_TOGGLE_BUTTON (resolv_cb)->active; gtk_widget_destroy(GTK_WIDGET(parent_w)); do_capture(save_file); } static void capture_prep_close_cb(GtkWidget *close_bt, gpointer parent_w) { gtk_grab_remove(GTK_WIDGET(parent_w)); gtk_widget_destroy(GTK_WIDGET(parent_w)); } #endif /* HAVE_LIBPCAP */