2 * Capture options (all parameters needed to do the actual capture)
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
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.
28 * Capture options (all parameters needed to do the actual capture)
32 #ifndef __CAPTURE_OPTS_H__
33 #define __CAPTURE_OPTS_H__
36 /* Current state of capture engine. XXX - differentiate states */
38 CAPTURE_STOPPED, /**< stopped */
39 CAPTURE_PREPARING, /**< preparing, but still no response from capture child */
40 CAPTURE_RUNNING /**< capture child signalled ok, capture is running now */
44 /** Capture options coming from user interface */
45 typedef struct capture_options_tag {
47 void *cf; /**< handle to cfile (note: untyped handle) */
48 gboolean has_cfilter; /**< TRUE if capture filter specified on command line */
49 gchar *cfilter; /**< Capture filter string */
50 gchar *iface; /**< the network interface to capture from */
51 gchar *iface_descr; /**< A human readable description of iface.
52 *< NOTE: capture_opts.c is not able to
53 *< set this field because doing so
54 *< requires too many dependencies.
55 *< Readers of this field should use
56 *< get_iface_description() from
57 *< "capture_ui_utils.h" to access it. */
60 int buffer_size; /**< the capture buffer size (MB) */
62 gboolean has_snaplen; /**< TRUE if maximum capture packet length
64 int snaplen; /**< Maximum captured packet length */
65 gboolean promisc_mode; /**< Capture in promiscuous mode */
66 int linktype; /**< Data link type to use, or -1 for
68 gboolean saving_to_file; /**< TRUE if capture is writing to a file */
69 gchar *save_file; /**< the capture file name */
72 gboolean real_time_mode; /**< Update list of packets in real time */
73 gboolean show_info; /**< show the info dialog */
74 gboolean quit_after_cap; /**< Makes a "capture only mode". Implies -k */
75 gboolean restart; /**< restart after closing is done */
77 /* multiple files (and ringbuffer) */
78 gboolean multi_files_on; /**< TRUE if ring buffer in use */
80 gboolean has_file_duration; /**< TRUE if ring duration specified */
81 gint32 file_duration; /**< Switch file after n seconds */
82 gboolean has_ring_num_files; /**< TRUE if ring num_files specified */
83 guint32 ring_num_files; /**< Number of multiple buffer files */
85 /* autostop conditions */
86 gboolean has_autostop_files; /**< TRUE if maximum number of capture files
88 gint32 autostop_files; /**< Maximum number of capture files */
90 gboolean has_autostop_packets; /**< TRUE if maximum packet count is
92 int autostop_packets; /**< Maximum packet count */
93 gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
95 gint32 autostop_filesize; /**< Maximum capture file size */
96 gboolean has_autostop_duration; /**< TRUE if maximum capture duration
98 gint32 autostop_duration; /**< Maximum capture duration */
100 /* internally used (don't touch from outside) */
101 int fork_child; /**< If not -1, in parent, process ID of child */
103 int signal_pipe_write_fd; /**< the pipe to signal the child */
105 capture_state state; /**< current state of the capture engine */
106 gboolean output_to_pipe; /**< save_file is a pipe (named or stdout) */
108 uid_t owner; /**< owner of the cfile */
109 gid_t group; /**< group of the cfile */
113 /* initialize the capture_options with some reasonable values */
115 capture_opts_init(capture_options *capture_opts, void *cfile);
117 /* set a command line option value */
119 capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg, gboolean *start_capture);
121 /* log content of capture_opts */
123 capture_opts_log(const char *log_domain, GLogLevelFlags log_level, capture_options *capture_opts);
125 /* list link layer types */
127 capture_opts_list_link_layer_types(capture_options *capture_opts, gboolean machine_readable);
129 /* list interfaces */
131 capture_opts_list_interfaces(gboolean machine_readable);
133 /* print interface statistics */
135 capture_opts_print_statistics(gboolean machine_readable);
137 /* trim the snaplen entry */
139 capture_opts_trim_snaplen(capture_options *capture_opts, int snaplen_min);
141 /* trim the ring_num_files entry */
143 capture_opts_trim_ring_num_files(capture_options *capture_opts);
145 /* trim the interface entry */
147 capture_opts_trim_iface(capture_options *capture_opts, const char *capture_device);
149 #endif /* capture_opts.h */