*
* $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
+ * 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
#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 && !capture_opts->restart) {
+ 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.wireshark.org/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);
}
-/* capture child tells us, we have a new (or the first) capture file */
+/* capture child tells us we have a new (or the first) capture file */
gboolean
capture_input_new_file(capture_options *capture_opts, gchar *new_file)
{
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);
/* if we are in real-time mode, open the new file now */
if(capture_opts->real_time_mode) {
/* Attempt to open the capture file and set up to read from it. */
- switch(cf_start_tail(capture_opts->cf, capture_opts->save_file, is_tempfile, &err)) {
+ switch(cf_start_tail(capture_opts->cf, capture_opts->save_file, is_tempfile, &err)) {
case CF_OK:
break;
case CF_ERROR:
return FALSE;
break;
}
+ }
+
+ if(capture_opts->show_info) {
+ if (!capture_info_new_file(new_file))
+ return FALSE;
+ }
+ 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);
}
-
+ capture_opts->state = CAPTURE_RUNNING;
return TRUE;
}
-/* capture child tells us, we have new packets to read */
+/* capture child tells us we have new packets to read */
void
capture_input_new_packets(capture_options *capture_opts, int to_read)
{
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:
XXX - abort on a read error? */
cf_callback_invoke(cf_cb_live_capture_update_continue, capture_opts->cf);
- main_window_update();
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 closed it's side ot the pipe, do the required cleanup */
+/* 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.
+ The buffer we're handed has *two* null-terminated strings in it - a
+ primary message and a secondary message, one right after the other.
+ The secondary message might be a null string.
+ */
+void
+capture_input_error_message(capture_options *capture_opts, char *error_msg, char *secondary_error_msg)
+{
+ gchar *safe_error_msg;
+ gchar *safe_secondary_error_msg;
+
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Error message from child: \"%s\", \"%s\"",
+ error_msg, secondary_error_msg);
+
+ g_assert(capture_opts->state == CAPTURE_PREPARING || capture_opts->state == CAPTURE_RUNNING);
+
+ safe_error_msg = simple_dialog_format_message(error_msg);
+ if (*secondary_error_msg != '\0') {
+ /* We have both primary and secondary messages. */
+ safe_secondary_error_msg = simple_dialog_format_message(secondary_error_msg);
+ simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s%s%s\n\n%s",
+ simple_dialog_primary_start(), safe_error_msg,
+ simple_dialog_primary_end(), safe_secondary_error_msg);
+ g_free(safe_secondary_error_msg);
+ } else {
+ /* We have only a primary message. */
+ simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s%s%s",
+ simple_dialog_primary_start(), safe_error_msg,
+ simple_dialog_primary_end());
+ }
+ g_free(safe_error_msg);
+
+ /* the capture child will close the sync_pipe if required, nothing to do for now */
+}
+
+
+
+/* Capture child told us that an error has occurred while parsing a
+ capture filter when starting/running the capture.
+ */
+void
+capture_input_cfilter_error_message(capture_options *capture_opts, char *error_message)
+{
+ dfilter_t *rfcode = NULL;
+ gchar *safe_cfilter = simple_dialog_format_message(capture_opts->cfilter);
+ gchar *safe_cfilter_error_msg = simple_dialog_format_message(error_message);
+
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture filter error message from child: \"%s\"", error_message);
+
+ g_assert(capture_opts->state == CAPTURE_PREPARING || capture_opts->state == CAPTURE_RUNNING);
+
+ /* Did the user try a display filter? */
+ if (dfilter_compile(capture_opts->cfilter, &rfcode) && rfcode != NULL) {
+ simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
+ "%sInvalid capture filter: \"%s\"!%s\n"
+ "\n"
+ "That string looks like a valid display filter; however, it isn't a valid\n"
+ "capture filter (%s).\n"
+ "\n"
+ "Note that display filters and capture filters don't have the same syntax,\n"
+ "so you can't use most display filter expressions as capture filters.\n"
+ "\n"
+ "See the User's Guide for a description of the capture filter syntax.",
+ simple_dialog_primary_start(), safe_cfilter,
+ simple_dialog_primary_end(), safe_cfilter_error_msg);
+ dfilter_free(rfcode);
+ } else {
+ simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
+ "%sInvalid capture filter: \"%s\"!%s\n"
+ "\n"
+ "That string isn't a valid capture filter (%s).\n"
+ "See the User's Guide for a description of the capture filter syntax.",
+ simple_dialog_primary_start(), safe_cfilter,
+ simple_dialog_primary_end(), safe_cfilter_error_msg);
+ }
+ g_free(safe_cfilter_error_msg);
+ g_free(safe_cfilter);
+
+ /* the capture child will close the sync_pipe if required, nothing to do for now */
+}
+
+
+/* capture child closed its side of the pipe, do the required cleanup */
void
capture_input_closed(capture_options *capture_opts)
{
int err;
- /* if we have no file (happens if an error occured), do a fake start */
- if(capture_opts->save_file == NULL) {
+ 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 {
}
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 && !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!",
+ 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.wireshark.org/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);
}
}
+ 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);
if(capture_opts->restart) {
capture_opts->restart = FALSE;
- unlink(capture_opts->save_file);
+ 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)) {
git.samba.org / obnox / wireshark / wip.git / blobdiff