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
64 #define LONGOPT_LIST_TSTAMP_TYPES 129
65 #define LONGOPT_SET_TSTAMP_TYPE 130
68 * Options for capturing common to all capturing programs.
70 #ifdef HAVE_PCAP_REMOTE
71 #define OPTSTRING_A "A:"
73 #define OPTSTRING_A ""
76 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
77 #define LONGOPT_BUFFER_SIZE \
78 {"buffer-size", required_argument, NULL, 'B'},
79 #define OPTSTRING_B "B:"
81 #define LONGOPT_BUFFER_SIZE
82 #define OPTSTRING_B ""
85 #ifdef HAVE_PCAP_CREATE
86 #define LONGOPT_MONITOR_MODE {"monitor-mode", no_argument, NULL, 'I'},
87 #define OPTSTRING_I "I"
89 #define LONGOPT_MONITOR_MODE
90 #define OPTSTRING_I ""
93 #define LONGOPT_CAPTURE_COMMON \
94 {"capture-comment", required_argument, NULL, LONGOPT_NUM_CAP_COMMENT}, \
95 {"autostop", required_argument, NULL, 'a'}, \
96 {"ring-buffer", required_argument, NULL, 'b'}, \
98 {"list-interfaces", no_argument, NULL, 'D'}, \
99 {"interface", required_argument, NULL, 'i'}, \
100 LONGOPT_MONITOR_MODE \
101 {"list-data-link-types", no_argument, NULL, 'L'}, \
102 {"no-promiscuous-mode", no_argument, NULL, 'p'}, \
103 {"snapshot-length", required_argument, NULL, 's'}, \
104 {"linktype", required_argument, NULL, 'y'}, \
105 {"list-time-stamp-types", no_argument, NULL, LONGOPT_LIST_TSTAMP_TYPES}, \
106 {"time-stamp-type", required_argument, NULL, LONGOPT_SET_TSTAMP_TYPE},
109 #define OPTSTRING_CAPTURE_COMMON \
110 "a:" OPTSTRING_A "b:" OPTSTRING_B "c:Df:i:" OPTSTRING_I "Lps:y:"
112 #ifdef HAVE_PCAP_REMOTE
113 /* Type of capture source */
115 CAPTURE_IFLOCAL, /**< Local network interface */
116 CAPTURE_IFREMOTE /**< Remote network interface */
119 /* Type of RPCAPD Authentication */
121 CAPTURE_AUTH_NULL, /**< No authentication */
122 CAPTURE_AUTH_PWD /**< User/password authentication */
125 #ifdef HAVE_PCAP_SETSAMPLING
127 * Method of packet sampling (dropping some captured packets),
128 * may require additional integer parameter, marked here as N
131 CAPTURE_SAMP_NONE, /**< No sampling - capture all packets */
132 CAPTURE_SAMP_BY_COUNT, /**< Counter-based sampling -
133 capture 1 packet from every N */
134 CAPTURE_SAMP_BY_TIMER /**< Timer-based sampling -
135 capture no more than 1 packet
140 #ifdef HAVE_PCAP_REMOTE
141 struct remote_host_info {
142 gchar *remote_host; /**< Host name or network address for remote capturing */
143 gchar *remote_port; /**< TCP port of remote RPCAP server */
144 capture_auth auth_type; /**< Authentication type */
145 gchar *auth_username; /**< Remote authentication parameters */
146 gchar *auth_password; /**< Remote authentication parameters */
148 gboolean nocap_rpcap;
149 gboolean nocap_local;
153 gchar *r_host; /**< Host name or network address for remote capturing */
154 gchar *remote_port; /**< TCP port of remote RPCAP server */
155 capture_auth auth_type; /**< Authentication type */
156 gchar *auth_username; /**< Remote authentication parameters */
157 gchar *auth_password; /**< Remote authentication parameters */
160 typedef struct remote_options_tag {
161 capture_source src_type;
162 struct remote_host_info remote_host_opts;
163 #ifdef HAVE_PCAP_SETSAMPLING
164 capture_sampling sampling_method;
168 #endif /* HAVE_PCAP_REMOTE */
170 typedef struct interface_tag {
173 gchar *friendly_name;
181 gboolean has_snaplen;
184 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
187 #ifdef HAVE_PCAP_CREATE
188 gboolean monitor_mode_enabled;
189 gboolean monitor_mode_supported;
191 #ifdef HAVE_PCAP_REMOTE
192 remote_options remote_opts;
194 guint32 last_packets;
201 /* External capture cached data */
202 GHashTable *external_cap_args_settings;
206 typedef struct link_row_tag {
212 #define INVALID_EXTCAP_PID INVALID_HANDLE_VALUE
214 #define INVALID_EXTCAP_PID (GPid)-1
217 typedef struct interface_options_tag {
218 gchar *name; /* the name of the interface provided to winpcap/libpcap to specify the interface */
220 gchar *console_display_name; /* the name displayed in the console, also the basis for autonamed pcap filenames */
222 gboolean has_snaplen;
225 gboolean promisc_mode;
226 interface_type if_type;
230 GHashTable *extcap_args;
231 GPid extcap_pid; /* pid of running process or INVALID_EXTCAP_PID */
232 gpointer extcap_userdata;
233 guint extcap_child_watch;
234 gchar *extcap_control_in;
235 gchar *extcap_control_out;
237 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
240 gboolean monitor_mode;
241 #ifdef HAVE_PCAP_REMOTE
242 capture_source src_type;
245 capture_auth auth_type;
246 gchar *auth_username;
247 gchar *auth_password;
249 gboolean nocap_rpcap;
250 gboolean nocap_local;
252 #ifdef HAVE_PCAP_SETSAMPLING
253 capture_sampling sampling_method;
256 gchar *timestamp_type; /* requested timestamp as string */
257 int timestamp_type_id; /* Timestamp type to pass to pcap_set_tstamp_type.
258 only valid if timestamp_type != NULL */
261 /** Capture options coming from user interface */
262 typedef struct capture_options_tag {
264 GArray *ifaces; /**< the interfaces to use for the
265 next capture, entries are of
266 type interface_options */
267 GArray *all_ifaces; /**< all interfaces, entries are
268 of type interface_t */
269 int ifaces_err; /**< if all_ifaces is null, the error
270 when it was fetched, if any */
271 gchar *ifaces_err_info; /**< error string for that error */
275 * Options to be applied to all interfaces.
277 * Some of these can be set from the GUI, others can't; setting
278 * the link-layer header type, for example, doesn't necessarily
279 * make sense, as different interfaces may support different sets
280 * of link-layer header types.
282 * Some that can't be set from the GUI can be set from the command
283 * line, by specifying them before any interface is specified.
284 * This includes the link-layer header type, so if somebody asks
285 * for a link-layer header type that an interface on which they're
286 * capturing doesn't support, we should report an error and fail
289 * These can be overridden per-interface.
291 interface_options default_options;
293 gboolean saving_to_file; /**< TRUE if capture is writing to a file */
294 gchar *save_file; /**< the capture file name */
295 gboolean group_read_access; /**< TRUE is group read permission needs to be set */
296 gboolean use_pcapng; /**< TRUE if file format is pcapng */
299 gboolean real_time_mode; /**< Update list of packets in real time */
300 gboolean show_info; /**< show the info dialog. GTK+ only. */
301 gboolean restart; /**< restart after closing is done */
302 gchar *orig_save_file; /**< the original capture file name (saved for a restart) */
304 /* multiple files (and ringbuffer) */
305 gboolean multi_files_on; /**< TRUE if ring buffer in use */
307 gboolean has_file_duration; /**< TRUE if ring duration specified */
308 gint32 file_duration; /**< Switch file after n seconds */
309 gboolean has_file_interval; /**< TRUE if ring interval specified */
310 gint32 file_interval; /**< Create time intervals of n seconds */
311 gboolean has_ring_num_files; /**< TRUE if ring num_files specified */
312 guint32 ring_num_files; /**< Number of multiple buffer files */
314 /* autostop conditions */
315 gboolean has_autostop_files; /**< TRUE if maximum number of capture files
317 gint32 autostop_files; /**< Maximum number of capture files */
319 gboolean has_autostop_packets; /**< TRUE if maximum packet count is
321 int autostop_packets; /**< Maximum packet count */
322 gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
324 guint32 autostop_filesize; /**< Maximum capture file size */
325 gboolean has_autostop_duration; /**< TRUE if maximum capture duration
327 gint32 autostop_duration; /**< Maximum capture duration */
329 gchar *capture_comment; /** capture comment to write to the
332 /* internally used (don't touch from outside) */
333 gboolean output_to_pipe; /**< save_file is a pipe (named or stdout) */
334 gboolean capture_child; /**< hidden option: Wireshark child mode */
337 /* initialize the capture_options with some reasonable values */
339 capture_opts_init(capture_options *capture_opts);
341 /* clean internal structures */
343 capture_opts_cleanup(capture_options *capture_opts);
345 /* set a command line option value */
347 capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg, gboolean *start_capture);
349 /* log content of capture_opts */
351 capture_opts_log(const char *log_domain, GLogLevelFlags log_level, capture_options *capture_opts);
354 CAPS_MONITOR_MODE = 0x1,
355 CAPS_QUERY_LINK_TYPES = 0x2,
356 CAPS_QUERY_TIMESTAMP_TYPES = 0x4
359 /* print interface capabilities, including link layer types */
361 capture_opts_print_if_capabilities(if_capabilities_t *caps, char *name, int queries);
363 /* print list of interfaces */
365 capture_opts_print_interfaces(GList *if_list);
367 /* trim the snaplen entry */
369 capture_opts_trim_snaplen(capture_options *capture_opts, int snaplen_min);
371 /* trim the ring_num_files entry */
373 capture_opts_trim_ring_num_files(capture_options *capture_opts);
375 /* pick default interface if none was specified */
377 capture_opts_default_iface_if_necessary(capture_options *capture_opts,
378 const char *capture_device);
381 capture_opts_del_iface(capture_options *capture_opts, guint if_index);
384 collect_ifaces(capture_options *capture_opts);
387 capture_opts_free_interface_t(interface_t *device);
389 /* Default capture buffer size in Mbytes. */
390 #define DEFAULT_CAPTURE_BUFFER_SIZE 2
394 #endif /* __cplusplus */
396 #endif /* capture_opts.h */
399 * Editor modelines - http://www.wireshark.org/tools/modelines.html
404 * indent-tabs-mode: nil
407 * vi: set shiftwidth=4 tabstop=8 expandtab:
408 * :indentSize=4:tabSize=8:noTabs=true: