2 * Capture options (all parameters needed to do the actual capture)
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 * Capture options (all parameters needed to do the actual capture)
30 #ifndef __CAPTURE_OPTS_H__
31 #define __CAPTURE_OPTS_H__
33 #ifdef HAVE_SYS_TYPES_H
34 # include <sys/types.h> /* for gid_t */
37 #include <caputils/capture_ifinfo.h>
41 #endif /* __cplusplus */
45 * We do not currently have long options corresponding to all short
46 * options; we should probably pick appropriate option names for them.
48 * For long options with no corresponding short options, we define values
49 * outside the range of ASCII graphic characters, make that the last
50 * component of the entry for the long option, and have a case for that
51 * option in the switch statement.
53 * We also pick values < 4096, so as to leave values >= 4096 for
57 * for tshark, we're using a leading - in the optstring to prevent getopt()
58 * from permuting the argv[] entries, in this case, unknown argv[] entries
59 * will be returned as parameters to a dummy-option 1.
60 * In short: we must not use 1 here, which is another reason to use
61 * values outside the range of ASCII graphic characters.
63 #define LONGOPT_NUM_CAP_COMMENT 128
66 * Options for capturing common to all capturing programs.
68 #ifdef HAVE_PCAP_REMOTE
69 #define OPTSTRING_A "A:"
71 #define OPTSTRING_A ""
74 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
75 #define LONGOPT_BUFFER_SIZE \
76 {"buffer-size", required_argument, NULL, 'B'},
77 #define OPTSTRING_B "B:"
79 #define LONGOPT_BUFFER_SIZE
80 #define OPTSTRING_B ""
83 #ifdef HAVE_PCAP_CREATE
84 #define LONGOPT_MONITOR_MODE {"monitor-mode", no_argument, NULL, 'I'},
85 #define OPTSTRING_I "I"
87 #define LONGOPT_MONITOR_MODE
88 #define OPTSTRING_I ""
91 #define LONGOPT_CAPTURE_COMMON \
92 {"capture-comment", required_argument, NULL, LONGOPT_NUM_CAP_COMMENT}, \
93 {"autostop", required_argument, NULL, 'a'}, \
94 {"ring-buffer", required_argument, NULL, 'b'}, \
96 {"list-interfaces", no_argument, NULL, 'D'}, \
97 {"interface", required_argument, NULL, 'i'}, \
98 LONGOPT_MONITOR_MODE \
99 {"list-data-link-types", no_argument, NULL, 'L'}, \
100 {"no-promiscuous-mode", no_argument, NULL, 'p'}, \
101 {"snapshot-length", required_argument, NULL, 's'}, \
102 {"linktype", required_argument, NULL, 'y'}, \
104 #define OPTSTRING_CAPTURE_COMMON \
105 "a:" OPTSTRING_A "b:" OPTSTRING_B "c:Df:i:" OPTSTRING_I "Lps:y:"
107 #ifdef HAVE_PCAP_REMOTE
108 /* Type of capture source */
110 CAPTURE_IFLOCAL, /**< Local network interface */
111 CAPTURE_IFREMOTE /**< Remote network interface */
114 /* Type of RPCAPD Authentication */
116 CAPTURE_AUTH_NULL, /**< No authentication */
117 CAPTURE_AUTH_PWD /**< User/password authentication */
120 #ifdef HAVE_PCAP_SETSAMPLING
122 * Method of packet sampling (dropping some captured packets),
123 * may require additional integer parameter, marked here as N
126 CAPTURE_SAMP_NONE, /**< No sampling - capture all packets */
127 CAPTURE_SAMP_BY_COUNT, /**< Counter-based sampling -
128 capture 1 packet from every N */
129 CAPTURE_SAMP_BY_TIMER /**< Timer-based sampling -
130 capture no more than 1 packet
135 #ifdef HAVE_PCAP_REMOTE
136 struct remote_host_info {
137 gchar *remote_host; /**< Host name or network address for remote capturing */
138 gchar *remote_port; /**< TCP port of remote RPCAP server */
139 capture_auth auth_type; /**< Authentication type */
140 gchar *auth_username; /**< Remote authentication parameters */
141 gchar *auth_password; /**< Remote authentication parameters */
143 gboolean nocap_rpcap;
144 gboolean nocap_local;
148 gchar *r_host; /**< Host name or network address for remote capturing */
149 gchar *remote_port; /**< TCP port of remote RPCAP server */
150 capture_auth auth_type; /**< Authentication type */
151 gchar *auth_username; /**< Remote authentication parameters */
152 gchar *auth_password; /**< Remote authentication parameters */
155 typedef struct remote_options_tag {
156 capture_source src_type;
157 struct remote_host_info remote_host_opts;
158 #ifdef HAVE_PCAP_SETSAMPLING
159 capture_sampling sampling_method;
163 #endif /* HAVE_PCAP_REMOTE */
165 typedef struct interface_tag {
168 gchar *friendly_name;
176 gboolean has_snaplen;
179 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
182 #ifdef HAVE_PCAP_CREATE
183 gboolean monitor_mode_enabled;
184 gboolean monitor_mode_supported;
186 #ifdef HAVE_PCAP_REMOTE
187 remote_options remote_opts;
189 guint32 last_packets;
196 /* External capture cached data */
197 GHashTable *external_cap_args_settings;
201 typedef struct link_row_tag {
207 #define INVALID_EXTCAP_PID INVALID_HANDLE_VALUE
209 #define INVALID_EXTCAP_PID (GPid)-1
212 typedef struct interface_options_tag {
213 gchar *name; /* the name of the interface provided to winpcap/libpcap to specify the interface */
215 gchar *console_display_name; /* the name displayed in the console, also the basis for autonamed pcap filenames */
217 gboolean has_snaplen;
220 gboolean promisc_mode;
221 interface_type if_type;
225 GHashTable *extcap_args;
226 GPid extcap_pid; /* pid of running process or INVALID_EXTCAP_PID */
227 gpointer extcap_userdata;
228 guint extcap_child_watch;
229 gchar *extcap_control_in;
230 gchar *extcap_control_out;
232 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
235 gboolean monitor_mode;
236 #ifdef HAVE_PCAP_REMOTE
237 capture_source src_type;
240 capture_auth auth_type;
241 gchar *auth_username;
242 gchar *auth_password;
244 gboolean nocap_rpcap;
245 gboolean nocap_local;
247 #ifdef HAVE_PCAP_SETSAMPLING
248 capture_sampling sampling_method;
253 /** Capture options coming from user interface */
254 typedef struct capture_options_tag {
256 GArray *ifaces; /**< the interfaces to use for the
257 next capture, entries are of
258 type interface_options */
259 GArray *all_ifaces; /**< all interfaces, entries are
260 of type interface_t */
261 int ifaces_err; /**< if all_ifaces is null, the error
262 when it was fetched, if any */
263 gchar *ifaces_err_info; /**< error string for that error */
267 * Options to be applied to all interfaces.
269 * Some of these can be set from the GUI, others can't; setting
270 * the link-layer header type, for example, doesn't necessarily
271 * make sense, as different interfaces may support different sets
272 * of link-layer header types.
274 * Some that can't be set from the GUI can be set from the command
275 * line, by specifying them before any interface is specified.
276 * This includes the link-layer header type, so if somebody asks
277 * for a link-layer header type that an interface on which they're
278 * capturing doesn't support, we should report an error and fail
281 * These can be overridden per-interface.
283 interface_options default_options;
285 gboolean saving_to_file; /**< TRUE if capture is writing to a file */
286 gchar *save_file; /**< the capture file name */
287 gboolean group_read_access; /**< TRUE is group read permission needs to be set */
288 gboolean use_pcapng; /**< TRUE if file format is pcapng */
291 gboolean real_time_mode; /**< Update list of packets in real time */
292 gboolean show_info; /**< show the info dialog. GTK+ only. */
293 gboolean restart; /**< restart after closing is done */
294 gchar *orig_save_file; /**< the original capture file name (saved for a restart) */
296 /* multiple files (and ringbuffer) */
297 gboolean multi_files_on; /**< TRUE if ring buffer in use */
299 gboolean has_file_duration; /**< TRUE if ring duration specified */
300 gint32 file_duration; /**< Switch file after n seconds */
301 gboolean has_ring_num_files; /**< TRUE if ring num_files specified */
302 guint32 ring_num_files; /**< Number of multiple buffer files */
304 /* autostop conditions */
305 gboolean has_autostop_files; /**< TRUE if maximum number of capture files
307 gint32 autostop_files; /**< Maximum number of capture files */
309 gboolean has_autostop_packets; /**< TRUE if maximum packet count is
311 int autostop_packets; /**< Maximum packet count */
312 gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
314 guint32 autostop_filesize; /**< Maximum capture file size */
315 gboolean has_autostop_duration; /**< TRUE if maximum capture duration
317 gint32 autostop_duration; /**< Maximum capture duration */
319 gchar *capture_comment; /** capture comment to write to the
322 /* internally used (don't touch from outside) */
323 gboolean output_to_pipe; /**< save_file is a pipe (named or stdout) */
324 gboolean capture_child; /**< hidden option: Wireshark child mode */
327 /* initialize the capture_options with some reasonable values */
329 capture_opts_init(capture_options *capture_opts);
331 /* clean internal structures */
333 capture_opts_cleanup(capture_options *capture_opts);
335 /* set a command line option value */
337 capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg, gboolean *start_capture);
339 /* log content of capture_opts */
341 capture_opts_log(const char *log_domain, GLogLevelFlags log_level, capture_options *capture_opts);
343 /* print interface capabilities, including link layer types */
345 capture_opts_print_if_capabilities(if_capabilities_t *caps, char *name,
346 gboolean monitor_mode);
348 /* print list of interfaces */
350 capture_opts_print_interfaces(GList *if_list);
352 /* trim the snaplen entry */
354 capture_opts_trim_snaplen(capture_options *capture_opts, int snaplen_min);
356 /* trim the ring_num_files entry */
358 capture_opts_trim_ring_num_files(capture_options *capture_opts);
360 /* pick default interface if none was specified */
362 capture_opts_default_iface_if_necessary(capture_options *capture_opts,
363 const char *capture_device);
366 capture_opts_del_iface(capture_options *capture_opts, guint if_index);
369 collect_ifaces(capture_options *capture_opts);
372 capture_opts_free_interface_t(interface_t *device);
374 /* Default capture buffer size in Mbytes. */
375 #define DEFAULT_CAPTURE_BUFFER_SIZE 2
379 #endif /* __cplusplus */
381 #endif /* capture_opts.h */
384 * Editor modelines - http://www.wireshark.org/tools/modelines.html
389 * indent-tabs-mode: nil
392 * vi: set shiftwidth=4 tabstop=8 expandtab:
393 * :indentSize=4:tabSize=8:noTabs=true: