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__
35 #ifdef HAVE_SYS_TYPES_H
36 # include <sys/types.h> /* for gid_t */
39 #include "capture_ifinfo.h"
43 #endif /* __cplusplus */
45 /* Current state of capture engine. XXX - differentiate states */
47 CAPTURE_STOPPED, /**< stopped */
48 CAPTURE_PREPARING, /**< preparing, but still no response from capture child */
49 CAPTURE_RUNNING /**< capture child signalled ok, capture is running now */
52 #ifdef HAVE_PCAP_REMOTE
53 /* Type of capture source */
55 CAPTURE_IFLOCAL, /**< Local network interface */
56 CAPTURE_IFREMOTE /**< Remote network interface */
59 /* Type of RPCAPD Authentication */
61 CAPTURE_AUTH_NULL, /**< No authentication */
62 CAPTURE_AUTH_PWD /**< User/password authentication */
65 #ifdef HAVE_PCAP_SETSAMPLING
67 * Method of packet sampling (dropping some captured packets),
68 * may require additional integer parameter, marked here as N
71 CAPTURE_SAMP_NONE, /**< No sampling - capture all packets */
72 CAPTURE_SAMP_BY_COUNT, /**< Counter-based sampling -
73 capture 1 packet from every N */
74 CAPTURE_SAMP_BY_TIMER /**< Timer-based sampling -
75 capture no more than 1 packet
80 typedef struct interface_options_tag {
87 gboolean promisc_mode;
88 #if defined(_WIN32) || defined(HAVE_PCAP_CREATE)
91 gboolean monitor_mode;
92 #ifdef HAVE_PCAP_REMOTE
93 capture_source src_type;
96 capture_auth auth_type;
100 gboolean nocap_rpcap;
101 gboolean nocap_local;
103 #ifdef HAVE_PCAP_SETSAMPLING
104 capture_sampling sampling_method;
109 /** Capture options coming from user interface */
110 typedef struct capture_options_tag {
112 void *cf; /**< handle to cfile (note: untyped handle) */
113 GArray *ifaces; /**< array of interfaces.
114 Currently only used by dumpcap. */
115 interface_options default_options;
116 gboolean saving_to_file; /**< TRUE if capture is writing to a file */
117 gchar *save_file; /**< the capture file name */
118 gboolean group_read_access; /**< TRUE is group read permission needs to be set */
119 gboolean use_pcapng; /**< TRUE if file format is pcapng */
122 gboolean real_time_mode; /**< Update list of packets in real time */
123 gboolean show_info; /**< show the info dialog */
124 gboolean quit_after_cap; /**< Makes a "capture only mode". Implies -k */
125 gboolean restart; /**< restart after closing is done */
127 /* multiple files (and ringbuffer) */
128 gboolean multi_files_on; /**< TRUE if ring buffer in use */
130 gboolean has_file_duration; /**< TRUE if ring duration specified */
131 gint32 file_duration; /**< Switch file after n seconds */
132 gboolean has_ring_num_files; /**< TRUE if ring num_files specified */
133 guint32 ring_num_files; /**< Number of multiple buffer files */
135 /* autostop conditions */
136 gboolean has_autostop_files; /**< TRUE if maximum number of capture files
138 gint32 autostop_files; /**< Maximum number of capture files */
140 gboolean has_autostop_packets; /**< TRUE if maximum packet count is
142 int autostop_packets; /**< Maximum packet count */
143 gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
145 gint32 autostop_filesize; /**< Maximum capture file size */
146 gboolean has_autostop_duration; /**< TRUE if maximum capture duration
148 gint32 autostop_duration; /**< Maximum capture duration */
150 /* internally used (don't touch from outside) */
151 int fork_child; /**< If not -1, in parent, process ID of child */
152 int fork_child_status; /**< Child exit status */
154 int signal_pipe_write_fd; /**< the pipe to signal the child */
156 capture_state state; /**< current state of the capture engine */
157 gboolean output_to_pipe; /**< save_file is a pipe (named or stdout) */
159 uid_t owner; /**< owner of the cfile */
160 gid_t group; /**< group of the cfile */
164 /* initialize the capture_options with some reasonable values */
166 capture_opts_init(capture_options *capture_opts, void *cf);
168 /* set a command line option value */
170 capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg, gboolean *start_capture);
172 /* log content of capture_opts */
174 capture_opts_log(const char *log_domain, GLogLevelFlags log_level, capture_options *capture_opts);
176 /* print interface capabilities, including link layer types */
178 capture_opts_print_if_capabilities(if_capabilities_t *caps, char *name,
179 gboolean monitor_mode);
181 /* print list of interfaces */
183 capture_opts_print_interfaces(GList *if_list);
185 /* trim the snaplen entry */
187 capture_opts_trim_snaplen(capture_options *capture_opts, int snaplen_min);
189 /* trim the ring_num_files entry */
191 capture_opts_trim_ring_num_files(capture_options *capture_opts);
193 /* trim the interface entry */
195 capture_opts_trim_iface(capture_options *capture_opts, const char *capture_device);
199 #endif /* __cplusplus */
201 #endif /* capture_opts.h */