capture.h

   1 /* capture.h
   2  * Definitions for packet capture windows
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 /* This file should only be included if libpcap is present */
  26
  27 #ifndef __CAPTURE_H__
  28 #define __CAPTURE_H__
  29
  30 /** @file
  31  *  Capture related things.
  32  */
  33
  34 #include "capture_opts.h"
  35 #include "capture_session.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif /* __cplusplus */
  40
  41 typedef enum {
  42     capture_cb_capture_prepared,
  43     capture_cb_capture_update_started,
  44     capture_cb_capture_update_continue,
  45     capture_cb_capture_update_finished,
  46     capture_cb_capture_fixed_started,
  47     capture_cb_capture_fixed_continue,
  48     capture_cb_capture_fixed_finished,
  49     capture_cb_capture_stopping,
  50     capture_cb_capture_failed
  51 } capture_cbs;
  52
  53 typedef void (*capture_callback_t) (gint event, capture_session *cap_session,
  54                                     gpointer user_data);
  55
  56 extern void
  57 capture_callback_add(capture_callback_t func, gpointer user_data);
  58
  59 extern void
  60 capture_callback_remove(capture_callback_t func);
  61
  62 /**
  63  * Start a capture session.
  64  *
  65  * @param capture_opts the numerous capture options
  66  * @return TRUE if the capture starts successfully, FALSE otherwise.
  67  */
  68 extern gboolean
  69 capture_start(capture_options *capture_opts, capture_session *cap_session, void(*update_cb)(void));
  70
  71 /** Stop a capture session (usually from a menu item). */
  72 extern void
  73 capture_stop(capture_session *cap_session);
  74
  75 /** Restart the current captured packets and start again. */
  76 extern void
  77 capture_restart(capture_session *cap_session);
  78
  79 /** Terminate the capture child cleanly when exiting. */
  80 extern void
  81 capture_kill_child(capture_session *cap_session);
  82
  83 struct if_stat_cache_s;
  84 typedef struct if_stat_cache_s if_stat_cache_t;
  85
  86 /**
  87  * Start gathering capture statistics for the interfaces specified.
  88  * @param capture_opts A structure containing options for the capture.
  89  * @return A pointer to the statistics state data.
  90  */
  91 extern if_stat_cache_t * capture_stat_start(capture_options *capture_opts);
  92
  93 /**
  94  * Fetch capture statistics, similar to pcap_stats().
  95  */
  96 struct pcap_stat; /* Stub in case we don't or haven't yet included pcap.h */
  97 extern gboolean capture_stats(if_stat_cache_t *sc, char *ifname, struct pcap_stat *ps);
  98
  99 /**
 100  * Stop gathering capture statistics.
 101  */
 102 void capture_stat_stop(if_stat_cache_t *sc);
 103
 104 #ifdef __cplusplus
 105 }
 106 #endif /* __cplusplus */
 107
 108 #endif /* capture.h */