2 * Definitions for packet capture windows
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
8 * Copyright 1998 Gerald Combs
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 * Capture related things.
32 /** Name we give to the child process when doing a "-S" capture. */
33 #define CHILD_NAME "ethereal-capture"
37 /** Capture options coming from user interface */
38 typedef struct capture_options_tag {
41 int buffer_size; /**< the capture buffer size (MB) */
43 gboolean has_snaplen; /**< TRUE if maximum capture packet
44 length is specified */
45 int snaplen; /**< Maximum captured packet length */
46 gboolean promisc_mode; /**< Capture in promiscuous mode */
47 int linktype; /**< Data link type to use, or -1 for
49 gboolean capture_child; /**< True if this is the child for "-S" */
50 int save_file_fd; /**< File descriptor for saved file */
53 gboolean sync_mode; /**< Fork a child to do the capture,
54 and sync between them */
55 gboolean show_info; /**< show the info dialog */
56 gboolean quit_after_cap; /** Makes a "capture only mode". Implies -k */
58 /* multiple files (and ringbuffer) */
59 gboolean multi_files_on; /**< TRUE if ring buffer in use */
61 gboolean has_file_duration; /**< TRUE if ring duration specified */
62 gint32 file_duration; /* Switch file after n seconds */
63 gboolean has_ring_num_files;/**< TRUE if ring num_files specified */
64 guint32 ring_num_files; /**< Number of multiple buffer files */
66 /* autostop conditions */
67 gboolean has_autostop_files;/**< TRUE if maximum number of capture files
69 gint32 autostop_files; /**< Maximum number of capture files */
71 gboolean has_autostop_packets; /**< TRUE if maximum packet count is
73 int autostop_packets; /**< Maximum packet count */
74 gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
76 gint32 autostop_filesize; /**< Maximum capture file size */
77 gboolean has_autostop_duration; /**< TRUE if maximum capture duration
79 gint32 autostop_duration; /**< Maximum capture duration */
83 /** Open a specified file, or create a temporary file, and start a capture
84 * to the file in question.
86 * @return TRUE if the capture starts successfully, FALSE otherwise. */
87 extern gboolean do_capture(capture_options *capture_opts, const char *save_file);
89 /** Do the low-level work of a capture (start the capture child). */
90 extern int capture_start(capture_options *capture_opts, gboolean *stats_known, struct pcap_stat *stats);
92 /** Stop a capture from a menu item. */
93 extern void capture_stop(gboolean sync_mode);
95 /** Terminate the capture child cleanly when exiting. */
96 extern void kill_capture_child(gboolean sync_mode);
98 /** Do the low-level work of a capture. */
99 extern int capture_loop_start(capture_options *capture_opts, gboolean *stats_known, struct pcap_stat *stats);
101 /** Stop a low-level capture. */
102 extern void capture_loop_stop(void);
106 /** Current Capture info. */
109 gpointer callback_data; /**< capture callback handle */
110 gpointer ui; /**< user interfaces own handle */
113 packet_counts *counts; /**< protocol specific counters */
114 time_t running_time; /**< running time since last update */
115 gint new_packets; /**< packets since last update */
119 /** Create the capture info dialog */
120 extern void capture_info_create(
124 /** Update the capture info counters in the dialog */
125 extern void capture_info_update(
126 capture_info *cinfo);
128 /** Destroy the capture info dialog again */
129 extern void capture_info_destroy(
130 capture_info *cinfo);
133 #endif /* HAVE_LIBPCAP */
135 #endif /* capture.h */