If we have pcap_open, call it instead of pcap_open_live, otherwise we might

[obnox/wireshark/wip.git] / capture.h

diff --git a/capture.h b/capture.h
index 598d30cf6fd6a7dcce9e2951c9b997493fcbe793..79084bd8334210d96af30cc6a2a36c07b58f3535 100644 (file)
--- a/capture.h
+++ b/capture.h
@@ -1,48 +1,118 @@
 /* capture.h
  * Definitions for packet capture windows
  *
- * $Id: capture.h,v 1.20 1999/10/02 19:24:19 guy Exp $
+ * $Id$
  *
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@zing.org>
+ * 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.
  */
 
+/* This file should only be included if libpcap is present */
+
 #ifndef __CAPTURE_H__
 #define __CAPTURE_H__
 
+/** @file
+ *  Capture related things.
+ */
+
+#include "capture_opts.h"
+
+/**
+ * Start a capture session.
+ *
+ * @param capture_opts the numerous capture options
+ * @return TRUE if the capture starts successfully, FALSE otherwise.
+ */
+extern gboolean capture_start(capture_options *capture_opts);
+
+/** Stop a capture session (usually from a menu item). */
+extern void capture_stop(capture_options *capture_opts);
+
+/** Restart the current captured packets and start again. */
+extern void capture_restart(capture_options *capture_opts);
+
+/** Terminate the capture child cleanly when exiting. */
+extern void capture_kill_child(capture_options *capture_opts);
+
+/**
+ * Capture child told us we have a new (or the first) capture file.
+ */
+extern gboolean capture_input_new_file(capture_options *capture_opts, gchar *new_file);
+
+/**
+ * Capture child told us we have new packets to read.
+ */
+extern void capture_input_new_packets(capture_options *capture_opts, int to_read);
+
+/**
+ * Capture child told us how many dropped packets it counted.
+ */
+extern void capture_input_drops(capture_options *capture_opts, int dropped);
+
+/**
+ * Capture child told us that an error has occurred while starting the capture.
+ */
+extern void capture_input_error_message(capture_options *capture_opts, char *error_message, char *secondary_error_msg);
+
+/**
+ * Capture child told us that an error has occurred while parsing a
+ * capture filter when starting/running the capture.
+ */
+extern void capture_input_cfilter_error_message(capture_options *capture_opts, char *error_message);
+
+/**
+ * Capture child closed its side of the pipe, do the required cleanup.
+ */
+extern void capture_input_closed(capture_options *capture_opts);
+
 #ifdef HAVE_LIBPCAP
+/**
+ * Fetch the interface list from a child process.
+ */
+extern GList *capture_interface_list(int *err, char **err_str);
 
-/* Name we give to the child process when doing a "-S" or "-F" capture. */
-#define        CHILD_NAME      "ethereal-capture"
+/**
+ * Fetch the linktype list for the specified interface from a child process.
+ */
+extern GList *capture_pcap_linktype_list(const char *devname, char **err_str);
 
-extern int sync_mode;  /* allow sync */
-extern int sync_pipe[2]; /* used to sync father */
-extern int fork_mode;  /* fork a child to do the capture */
-extern int quit_after_cap; /* Makes a "capture only mode". Implies -k */
-extern gboolean capture_child; /* if this is the child for "-F"/"-S" */
 
-/* Open a specified file, or create a temporary file, and start a capture
-   to the file in question. */
-void   do_capture(char *capfile_name);
+struct if_stat_cache_s;
+typedef struct if_stat_cache_s if_stat_cache_t;
 
-/* Do the low-level work of a capture. */
-int    capture(void);
+/**
+ * Start gathering capture statistics for the interfaces specified.
+ * @param A GList of if_info_t items
+ * @return A pointer to the statistics state data.
+ */
+extern if_stat_cache_t * capture_stat_start(GList *if_list);
 
+/**
+ * Fetch capture statistics, similar to pcap_stats().
+ */
+struct pcap_stat; /* Stub in case we don't or haven't yet included pcap.h */
+extern gboolean capture_stats(if_stat_cache_t *sc, char *ifname, struct pcap_stat *ps);
+
+/**
+ * Stop gathering capture statistics.
+ */
+void capture_stat_stop(if_stat_cache_t *sc);
 #endif /* HAVE_LIBPCAP */
+
 #endif /* capture.h */