File: capture.h

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/* capture.h
 * Definitions for packet capture windows
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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"
#include "capture_session.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

typedef enum {
    capture_cb_capture_prepared,
    capture_cb_capture_update_started,
    capture_cb_capture_update_continue,
    capture_cb_capture_update_finished,
    capture_cb_capture_fixed_started,
    capture_cb_capture_fixed_continue,
    capture_cb_capture_fixed_finished,
    capture_cb_capture_stopping,
    capture_cb_capture_failed
} capture_cbs;

typedef void (*capture_callback_t) (gint event, capture_session *cap_session,
                                    gpointer user_data);

extern void
capture_callback_add(capture_callback_t func, gpointer user_data);

extern void
capture_callback_remove(capture_callback_t func);

/**
 * Start a capture session.
 *
 * @param capture_opts the numerous capture options
 * @param cap_session a handle for the capture session
 * @param update_cb update screen
 * @return TRUE if the capture starts successfully, FALSE otherwise.
 */
extern gboolean
capture_start(capture_options *capture_opts, capture_session *cap_session, void(*update_cb)(void));

/** Stop a capture session (usually from a menu item). */
extern void
capture_stop(capture_session *cap_session);

/** Restart the current captured packets and start again. */
extern void
capture_restart(capture_session *cap_session);

/** Terminate the capture child cleanly when exiting. */
extern void
capture_kill_child(capture_session *cap_session);

struct if_stat_cache_s;
typedef struct if_stat_cache_s if_stat_cache_t;

/**
 * Start gathering capture statistics for the interfaces specified.
 * @param capture_opts A structure containing options for the capture.
 * @return A pointer to the statistics state data.
 */
extern if_stat_cache_t * capture_stat_start(capture_options *capture_opts);

/**
 * 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);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* capture.h */