More shuffling of GTK-related routines to gtk subdirectory.

svn path=/trunk/; revision=636

1 files changed, 494 insertions, 0 deletions

diff --git a/gtk/capture_dlg.c b/gtk/capture_dlg.c
new file mode 100644
index 0000000000..b9f0663212
--- /dev/null
+++ b/gtk/capture_dlg.c
@@ -0,0 +1,494 @@
+/* capture_dlg.c
+ * Routines for packet capture windows
+ *
+ * $Id: capture_dlg.c,v 1.1 1999/09/09 03:32:00 gram Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@zing.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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <gtk/gtk.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <time.h>
+
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
+
+#ifdef HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+
+#include <signal.h>
+#include <errno.h>
+
+#include <wiretap/wtap.h>
+#include "capture.h"
+#include "globals.h"
+#include "main.h"
+#include "capture_dlg.h"
+#include "prefs_dlg.h"
+#include "util.h"
+
+/* Capture callback data keys */
+#define E_CAP_IFACE_KEY "cap_iface"
+#define E_CAP_FILT_KEY  "cap_filter"
+#define E_CAP_COUNT_KEY "cap_count"
+#define E_CAP_OPEN_KEY  "cap_open"
+#define E_CAP_SNAP_KEY  "cap_snap"
+
+/* Capture filter key */
+#define E_CAP_FILT_TE_KEY "cap_filt_te"
+
+static GList*
+get_interface_list();
+
+static void
+capture_prep_ok_cb(GtkWidget *ok_bt, gpointer parent_w);
+
+static void
+capture_prep_close_cb(GtkWidget *close_bt, gpointer parent_w);
+
+static void
+search_for_if_cb(gpointer data, gpointer user_data);
+
+static void
+free_if_cb(gpointer data, gpointer user_data);
+
+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, *caplen_hb,
+                *bbox, *ok_bt, *cancel_bt, *snap_lb,
+                *snap_sb;
+  GtkAdjustment *adj;
+  GList         *if_list, *count_list = NULL;
+  gchar         *count_item1 = "0 (Infinite)", count_item2[16];
+
+  if_list = get_interface_list();
+  if (if_list == NULL)
+    return;
+  
+  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();
+  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);
+  
+  while (if_list) {
+    g_free(if_list->data);
+    if_list = g_list_remove_link(if_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(prefs_cb), (gpointer) E_PR_PG_FILTER);
+  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);
+
+  /* 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);
+  
+  /* 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_COUNT_KEY, count_cb);
+  gtk_object_set_data(GTK_OBJECT(cap_open_w), E_CAP_SNAP_KEY,  snap_sb);
+
+  gtk_widget_show(cap_open_w);
+}
+
+static void
+capture_prep_ok_cb(GtkWidget *ok_bt, gpointer parent_w) {
+  GtkWidget *if_cb, *filter_te, *count_cb, *snap_sb;
+  gchar *filter_text;
+  char tmpname[128+1];
+
+  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);
+  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);
+
+  if (cf.iface) g_free(cf.iface);
+  cf.iface =
+    g_strdup(gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(if_cb)->entry)));
+
+  filter_text = gtk_entry_get_text(GTK_ENTRY(filter_te));
+  if (cf.cfilter) g_free(cf.cfilter);
+  cf.cfilter = NULL; /* ead 06/16/99 */
+  if (filter_text && filter_text[0]) {
+	  cf.cfilter = g_strdup(gtk_entry_get_text(GTK_ENTRY(filter_te))); 
+  }
+  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;
+
+  gtk_widget_destroy(GTK_WIDGET(parent_w));
+
+  /* Choose a random name for the capture buffer */
+  if (cf.save_file && !cf.user_saved) {
+	unlink(cf.save_file); /* silently ignore error */
+	g_free(cf.save_file);
+  }
+  cf.save_file_fd = create_tempfile(tmpname, sizeof tmpname, "ether");
+  cf.save_file = g_strdup(tmpname);
+  cf.user_saved = 0;
+  
+  if( fork_mode ){	/*  use fork() for capture */
+    int  fork_child;
+    char ssnap[24];
+    char scount[24];	/* need a constant for len of numbers */
+    char save_file_fd[24];
+    int err;
+
+    sprintf(ssnap,"%d",cf.snap); /* in lieu of itoa */
+    sprintf(scount,"%d",cf.count);
+    sprintf(save_file_fd,"%d",cf.save_file_fd);
+    signal(SIGCHLD, SIG_IGN);
+    if (sync_mode) pipe(sync_pipe);
+    if((fork_child = fork()) == 0){
+      /* args: -k -- capture
+       * -i interface specification
+       * -w file to write
+       * -W file descriptor to write
+       * -c count to capture
+       * -Q quit after capture (forces -k)
+       * -s snaplen
+       * -S sync mode
+       * -m / -b fonts
+       * -f "filter expression"
+       */
+       if (sync_mode) {
+	 close(1);
+	 dup(sync_pipe[1]);
+	 close(sync_pipe[0]);
+	 execlp(ethereal_path, "ethereal", "-k", "-Q", "-i", cf.iface,
+		"-w", cf.save_file, "-W", save_file_fd,
+		"-c", scount, "-s", ssnap, "-S", 
+		"-m", medium_font, "-b", bold_font,
+		(cf.cfilter == NULL)? 0 : "-f",
+		(cf.cfilter == NULL)? 0 : cf.cfilter,
+		(const char *)NULL);	
+       }
+       else {
+	 execlp(ethereal_path, "ethereal", "-k", "-Q", "-i", cf.iface,
+		"-w", cf.save_file, "-W", save_file_fd,
+		"-c", scount, "-s", ssnap,
+		"-m", medium_font, "-b", bold_font,
+		(cf.cfilter == NULL)? 0 : "-f",
+		(cf.cfilter == NULL)? 0 : cf.cfilter,
+		(const char *)NULL);
+       }
+    }
+    else {
+       cf.filename = cf.save_file;
+       if (sync_mode) {
+	 close(sync_pipe[1]);
+	 while (!sigusr2_received) {
+	   struct timeval timeout = {1,0};
+	   select(0, NULL, NULL, NULL, &timeout);
+	   if (kill(fork_child, 0) == -1 && errno == ESRCH) 
+	     break;
+	 }
+	 if (sigusr2_received) {
+	   err = tail_cap_file(cf.save_file, &cf);
+	   if (err != 0) {
+	     simple_dialog(ESD_TYPE_WARN, NULL,
+			file_open_error_message(err, FALSE), cf.save_file);
+	   }
+	 }
+	 sigusr2_received = FALSE;
+       }
+    }
+  }
+  else
+    capture();
+}
+
+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));
+}
+
+struct search_user_data {
+	char	*name;
+	int	found;
+};
+
+static GList *
+get_interface_list() {
+  GList  *il = NULL;
+  gint    nonloopback_pos = 0;
+  struct  ifreq *ifr, *last;
+  struct  ifconf ifc;
+  struct  ifreq ifrflags;
+  int     sock = socket(AF_INET, SOCK_DGRAM, 0);
+  struct search_user_data user_data;
+  pcap_t *pch;
+  gchar   err_str[PCAP_ERRBUF_SIZE];
+
+  if (sock < 0)
+  {
+    simple_dialog(ESD_TYPE_WARN, NULL,
+      "Can't list interfaces: error opening socket.");
+    return NULL;
+  }
+
+  /* Since we have to grab the interface list all at once, we'll make
+     plenty of room */
+  ifc.ifc_len = 1024 * sizeof(struct ifreq);
+  ifc.ifc_buf = malloc(ifc.ifc_len);
+
+  if (ioctl(sock, SIOCGIFCONF, &ifc) < 0 ||
+    ifc.ifc_len < sizeof(struct ifreq))
+  {
+    simple_dialog(ESD_TYPE_WARN, NULL,
+      "Can't list interfaces: SIOCGIFCONF error: %s", strerror(errno));
+    goto fail;
+  }
+
+  ifr  = (struct ifreq *) ifc.ifc_req;
+  last = (struct ifreq *) ((char *) ifr + ifc.ifc_len);
+  while (ifr < last)
+  {
+    /*
+     * Skip addresses that begin with "dummy", or that include a ":"
+     * (the latter are Solaris virtuals).
+     */
+    if (strncmp(ifr->ifr_name, "dummy", 5) == 0 ||
+	strchr(ifr->ifr_name, ':') != NULL)
+      goto next;
+
+    /*
+     * If we already have this interface name on the list, don't add
+     * it (SIOCGIFCONF returns, at least on BSD-flavored systems, one
+     * entry per interface *address*; if an interface has multiple
+     * addresses, we get multiple entries for it).
+     */
+    user_data.name = ifr->ifr_name;
+    user_data.found = FALSE;
+    g_list_foreach(il, search_for_if_cb, &user_data);
+    if (user_data.found)
+      goto next;
+
+    /*
+     * Get the interface flags.
+     */
+    memset(&ifrflags, 0, sizeof ifrflags);
+    strncpy(ifrflags.ifr_name, ifr->ifr_name, sizeof ifrflags.ifr_name);
+    if (ioctl(sock, SIOCGIFFLAGS, (char *)&ifrflags) < 0) {
+      if (errno == ENXIO)
+        goto next;
+      simple_dialog(ESD_TYPE_WARN, NULL,
+        "Can't list interfaces: SIOCGIFFLAGS error on %s: %s",
+        ifr->ifr_name, strerror(errno));
+      goto fail;
+    }
+
+    /*
+     * Skip interfaces that aren't up.
+     */
+    if (!(ifrflags.ifr_flags & IFF_UP))
+      goto next;
+
+    /*
+     * Skip interfaces that we can't open with "libpcap".
+     */
+    pch = pcap_open_live(ifr->ifr_name, WTAP_MAX_PACKET_SIZE, 0, 0, err_str);
+    if (pch == NULL)
+      goto next;
+    pcap_close(pch);
+
+    /*
+     * If it's a loopback interface, add it at the end of the list,
+     * otherwise add it after the last non-loopback interface,
+     * so all loopback interfaces go at the end - we don't want a
+     * loopback interface to be the default capture device unless there
+     * are no non-loopback devices.
+     */
+    if ((ifrflags.ifr_flags & IFF_LOOPBACK) ||
+	strncmp(ifr->ifr_name, "lo", 2) == 0)
+      il = g_list_insert(il, g_strdup(ifr->ifr_name), -1);
+    else {
+      il = g_list_insert(il, g_strdup(ifr->ifr_name), nonloopback_pos);
+      /* Insert the next non-loopback interface after this one. */
+      nonloopback_pos++;
+    }
+
+next:
+#ifdef HAVE_SA_LEN
+    ifr = (struct ifreq *) ((char *) ifr + ifr->ifr_addr.sa_len + IFNAMSIZ);
+#else
+    ifr = (struct ifreq *) ((char *) ifr + sizeof(struct ifreq));
+#endif
+  }
+
+  free(ifc.ifc_buf);
+  close(sock);
+
+  if (il == NULL) {
+    simple_dialog(ESD_TYPE_WARN, NULL,
+      "There are no network interfaces that can be opened.\n"
+      "Please check to make sure you have sufficient permission\n"
+      "to capture packets.");
+    return NULL;
+  }
+
+  return il;
+
+fail:
+  if (il != NULL) {
+    g_list_foreach(il, free_if_cb, NULL);
+    g_list_free(il);
+  }
+  free(ifc.ifc_buf);
+  close(sock);
+  return NULL;
+}
+
+static void
+search_for_if_cb(gpointer data, gpointer user_data)
+{
+	struct search_user_data *search_user_data = user_data;
+
+	if (strcmp((char *)data, search_user_data->name) == 0)
+		search_user_data->found = TRUE;
+}
+
+static void
+free_if_cb(gpointer data, gpointer user_data)
+{
+	g_free(data);
+}
+
+