#ifdef HAVE_LIBPCAP
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#endif
-#ifdef HAVE_IO_H
-# include <io.h>
-#endif
-
#include <signal.h>
#include <errno.h>
-#include <pcap.h>
-
#include <glib.h>
#include <epan/packet.h>
#include "file.h"
#include "capture.h"
#include "capture_sync.h"
+#include "capture_info.h"
#include "capture_ui_utils.h"
#include "util.h"
-#include "pcap-util.h"
+#include "capture-pcap-util.h"
#include "alert_box.h"
#include "simple_dialog.h"
#include <epan/prefs.h>
#include "capture-wpcap.h"
#endif
#include "ui_util.h"
+#include "file_util.h"
+#include "log.h"
/* close the currently loaded capture file */
cf_close(capture_opts->cf);
+ g_assert(capture_opts->state == CAPTURE_STOPPED);
+ capture_opts->state = CAPTURE_PREPARING;
+
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Start ...");
+
/* try to start the capture child process */
- ret = sync_pipe_start(capture_opts, capture_opts->save_file == NULL);
+ ret = sync_pipe_start(capture_opts);
if(!ret) {
if(capture_opts->save_file != NULL) {
g_free(capture_opts->save_file);
capture_opts->save_file = NULL;
}
+
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Start failed!");
+ capture_opts->state = CAPTURE_STOPPED;
+ } else {
+ /* the capture child might not respond shortly after bringing it up */
+ /* (especially it will block, if no input coming from an input capture pipe (e.g. mkfifo) is coming in) */
+
+ /* to prevent problems, bring the main GUI into "capture mode" right after successfully */
+ /* spawn/exec the capture child, without waiting for any response from it */
+ cf_callback_invoke(cf_cb_live_capture_prepared, capture_opts);
+
+ if(capture_opts->show_info)
+ capture_info_open(capture_opts->iface);
}
return ret;
void
capture_stop(capture_options *capture_opts)
{
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Stop ...");
+
+ cf_callback_invoke(cf_cb_live_capture_stopping, capture_opts);
+
/* stop the capture child gracefully */
sync_pipe_stop(capture_opts);
}
+
+void
+capture_restart(capture_options *capture_opts)
+{
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Restart");
+
+ capture_opts->restart = TRUE;
+ capture_stop(capture_opts);
+}
+
+
void
capture_kill_child(capture_options *capture_opts)
{
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_INFO, "Capture Kill");
+
/* kill the capture child */
sync_pipe_kill(capture_opts);
}
}
/* if we didn't captured even a single packet, close the file again */
- if(cf_packet_count(capture_opts->cf) == 0) {
+ if(cf_get_packet_count(capture_opts->cf) == 0 && !capture_opts->restart) {
simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
- "%sNo packets captured!%s\n\n"
- "As no data was captured, closing the %scapture file!",
+"%sNo packets captured!%s\n"
+"\n"
+"As no data was captured, closing the %scapture file!\n"
+"\n"
+"\n"
+"Help about capturing can be found at:\n"
+"\n"
+" http://wiki.ethereal.com/CaptureSetup"
+#ifdef _WIN32
+"\n\n"
+"Wireless (Wi-Fi/WLAN):\n"
+"Try to switch off promiscuous mode in the Capture Options!"
+#endif
+"",
simple_dialog_primary_start(), simple_dialog_primary_end(),
(cf_is_tempfile(capture_opts->cf)) ? "temporary " : "");
cf_close(capture_opts->cf);
int err;
- /*g_warning("New capture file: %s", new_file);*/
+ if(capture_opts->state == CAPTURE_PREPARING) {
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started!");
+ }
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
+
+ g_assert(capture_opts->state == CAPTURE_PREPARING || capture_opts->state == CAPTURE_RUNNING);
/* free the old filename */
if(capture_opts->save_file != NULL) {
/* we start a new capture file, close the old one (if we had one before) */
+ /* (we can only have an open capture file in real_time_mode!) */
if( ((capture_file *) capture_opts->cf)->state != FILE_CLOSED) {
cf_callback_invoke(cf_cb_live_capture_update_finished, capture_opts->cf);
cf_finish_tail(capture_opts->cf, &err);
cf_callback_invoke(cf_cb_live_capture_fixed_started, capture_opts);
}
+ if(capture_opts->show_info)
+ capture_info_new_file(new_file);
+
+ capture_opts->state = CAPTURE_RUNNING;
return TRUE;
}
int err;
+ g_assert(capture_opts->save_file);
+
if(capture_opts->real_time_mode) {
- /* Read from the capture file the number of records the child told us
- it added.
- XXX - do something if this fails? */
+ /* Read from the capture file the number of records the child told us it added. */
switch (cf_continue_tail(capture_opts->cf, to_read, &err)) {
case CF_READ_OK:
file.
XXX - abort on a read error? */
+ cf_callback_invoke(cf_cb_live_capture_update_continue, capture_opts->cf);
break;
case CF_READ_ABORTED:
capture_kill_child(capture_opts);
break;
}
+ } else {
+ /* increase capture file packet counter by the number or incoming packets */
+ cf_set_packet_count(capture_opts->cf,
+ cf_get_packet_count(capture_opts->cf) + to_read);
+
+ cf_callback_invoke(cf_cb_live_capture_fixed_continue, capture_opts->cf);
}
+
+ /* update the main window, so we get events (e.g. from the stop toolbar button) */
+ main_window_update();
+
+ if(capture_opts->show_info)
+ capture_info_new_packets(to_read);
+}
+
+
+/* Capture child told us, how many dropped packets it counted.
+ */
+void
+capture_input_drops(capture_options *capture_opts, int dropped)
+{
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_INFO, "%d packet%s dropped", dropped, plurality(dropped, "", "s"));
+
+ g_assert(capture_opts->state == CAPTURE_RUNNING);
+
+ cf_set_drops_known(capture_opts->cf, TRUE);
+ cf_set_drops(capture_opts->cf, dropped);
+}
+
+
+/* Capture child told us, that an error has occurred while starting/running the capture. */
+void
+capture_input_error_message(capture_options *capture_opts, char *error_message)
+{
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Error message from child: \"%s\"", error_message);
+
+ g_assert(capture_opts->state == CAPTURE_PREPARING || capture_opts->state == CAPTURE_RUNNING);
+
+ simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", error_message);
+
+ /* the capture child will close the sync_pipe if required, nothing to do for now */
}
int err;
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture stopped!");
+ g_assert(capture_opts->state == CAPTURE_PREPARING || capture_opts->state == CAPTURE_RUNNING);
+
+ /* if we didn't started the capture, do a fake start */
+ /* (happens if we got an error message - we won't get a filename then) */
+ if(capture_opts->state == CAPTURE_PREPARING) {
+ if(capture_opts->real_time_mode) {
+ cf_callback_invoke(cf_cb_live_capture_update_started, capture_opts);
+ } else {
+ cf_callback_invoke(cf_cb_live_capture_fixed_started, capture_opts);
+ }
+ }
+
if(capture_opts->real_time_mode) {
- /* first of all, we are not doing a capture any more */
+ cf_read_status_t status;
+
+ /* Read what remains of the capture file. */
+ status = cf_finish_tail(capture_opts->cf, &err);
+
+ /* Tell the GUI, we are not doing a capture any more.
+ Must be done after the cf_finish_tail(), so file lengths are displayed
+ correct. */
cf_callback_invoke(cf_cb_live_capture_update_finished, capture_opts->cf);
- /* Read what remains of the capture file, and finish the capture.
- XXX - do something if this fails? */
- switch (cf_finish_tail(capture_opts->cf, &err)) {
+ /* Finish the capture. */
+ switch (status) {
case CF_READ_OK:
- if(cf_packet_count(capture_opts->cf) == 0) {
- simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
- "%sNo packets captured!%s\n\n"
- "As no data was captured, closing the %scapture file!",
+ if(cf_get_packet_count(capture_opts->cf) == 0 && !capture_opts->restart) {
+ simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
+"%sNo packets captured!%s\n"
+"\n"
+"As no data was captured, closing the %scapture file!\n"
+"\n"
+"\n"
+"Help about capturing can be found at:\n"
+"\n"
+" http://wiki.ethereal.com/CaptureSetup"
+#ifdef _WIN32
+"\n\n"
+"Wireless (Wi-Fi/WLAN):\n"
+"Try to switch off promiscuous mode in the Capture Options!"
+#endif
+"",
simple_dialog_primary_start(), simple_dialog_primary_end(),
cf_is_tempfile(capture_opts->cf) ? "temporary " : "");
cf_close(capture_opts->cf);
/* first of all, we are not doing a capture any more */
cf_callback_invoke(cf_cb_live_capture_fixed_finished, capture_opts->cf);
- /* this is a normal mode capture, read in the capture file data */
- capture_input_read_all(capture_opts, cf_is_tempfile(capture_opts->cf),
- cf_get_drops_known(capture_opts->cf), cf_get_drops(capture_opts->cf));
+ /* this is a normal mode capture and if no error happened, read in the capture file data */
+ if(capture_opts->save_file != NULL) {
+ capture_input_read_all(capture_opts, cf_is_tempfile(capture_opts->cf),
+ cf_get_drops_known(capture_opts->cf), cf_get_drops(capture_opts->cf));
+ }
}
- /* We're not doing a capture any more, so we don't have a save file. */
- g_assert(capture_opts->save_file);
- g_free(capture_opts->save_file);
- capture_opts->save_file = NULL;
+ if(capture_opts->show_info)
+ capture_info_close();
+
+ capture_opts->state = CAPTURE_STOPPED;
+
+ /* if we couldn't open a capture file, there's nothing more for us to do */
+ if(capture_opts->save_file == NULL) {
+ cf_close(capture_opts->cf);
+ return;
+ }
+
+ /* does the user wants to restart the current capture? */
+ if(capture_opts->restart) {
+ capture_opts->restart = FALSE;
+
+ eth_unlink(capture_opts->save_file);
+
+ /* if it was a tempfile, throw away the old filename (so it will become a tempfile again) */
+ if(cf_is_tempfile(capture_opts->cf)) {
+ g_free(capture_opts->save_file);
+ capture_opts->save_file = NULL;
+ }
+
+ /* ... and start the capture again */
+ capture_start(capture_opts);
+ } else {
+ /* We're not doing a capture any more, so we don't have a save file. */
+ g_free(capture_opts->save_file);
+ capture_opts->save_file = NULL;
+ }
}
git.samba.org / obnox / wireshark / wip.git / blobdiff