This repository has been archived by the owner on Nov 4, 2022. It is now read-only.
forked from wireshark/wireshark
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcapture_opts.h
400 lines (351 loc) · 14.8 KB
/
capture_opts.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
/* capture_opts.h
* Capture options (all parameters needed to do the actual capture)
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <[email protected]>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/** @file
*
* Capture options (all parameters needed to do the actual capture)
*
*/
#ifndef __CAPTURE_OPTS_H__
#define __CAPTURE_OPTS_H__
#include <sys/types.h> /* for gid_t */
#include <capture/capture_ifinfo.h>
#include "ringbuffer.h"
#ifdef _WIN32
#include <windows.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* Long options.
* We do not currently have long options corresponding to all short
* options; we should probably pick appropriate option names for them.
*
* NOTE:
* for tshark, we're using a leading - in the optstring to prevent getopt()
* from permuting the argv[] entries, in this case, unknown argv[] entries
* will be returned as parameters to a dummy-option 1.
* In short: we must not use 1 here, which is another reason to use
* values outside the range of ASCII graphic characters.
*/
#define LONGOPT_NUM_CAP_COMMENT LONGOPT_BASE_CAPTURE+1
#define LONGOPT_LIST_TSTAMP_TYPES LONGOPT_BASE_CAPTURE+2
#define LONGOPT_SET_TSTAMP_TYPE LONGOPT_BASE_CAPTURE+3
#define LONGOPT_COMPRESS_TYPE LONGOPT_BASE_CAPTURE+4
/*
* Options for capturing common to all capturing programs.
*/
#ifdef HAVE_PCAP_REMOTE
#define OPTSTRING_A "A:"
#else
#define OPTSTRING_A
#endif
#ifdef CAN_SET_CAPTURE_BUFFER_SIZE
#define LONGOPT_BUFFER_SIZE \
{"buffer-size", required_argument, NULL, 'B'},
#define OPTSTRING_B "B:"
#else
#define LONGOPT_BUFFER_SIZE
#define OPTSTRING_B
#endif
#ifdef HAVE_PCAP_CREATE
#define LONGOPT_MONITOR_MODE {"monitor-mode", no_argument, NULL, 'I'},
#define OPTSTRING_I "I"
#else
#define LONGOPT_MONITOR_MODE
#define OPTSTRING_I
#endif
#define LONGOPT_CAPTURE_COMMON \
{"capture-comment", required_argument, NULL, LONGOPT_NUM_CAP_COMMENT}, \
{"autostop", required_argument, NULL, 'a'}, \
{"ring-buffer", required_argument, NULL, 'b'}, \
LONGOPT_BUFFER_SIZE \
{"list-interfaces", no_argument, NULL, 'D'}, \
{"interface", required_argument, NULL, 'i'}, \
LONGOPT_MONITOR_MODE \
{"list-data-link-types", no_argument, NULL, 'L'}, \
{"no-promiscuous-mode", no_argument, NULL, 'p'}, \
{"snapshot-length", required_argument, NULL, 's'}, \
{"linktype", required_argument, NULL, 'y'}, \
{"list-time-stamp-types", no_argument, NULL, LONGOPT_LIST_TSTAMP_TYPES}, \
{"time-stamp-type", required_argument, NULL, LONGOPT_SET_TSTAMP_TYPE}, \
{"compress-type", required_argument, NULL, LONGOPT_COMPRESS_TYPE},
#define OPTSTRING_CAPTURE_COMMON \
"a:" OPTSTRING_A "b:" OPTSTRING_B "c:Df:i:" OPTSTRING_I "Lps:y:"
#ifdef HAVE_PCAP_REMOTE
/* Type of capture source */
typedef enum {
CAPTURE_IFLOCAL, /**< Local network interface */
CAPTURE_IFREMOTE /**< Remote network interface */
} capture_source;
/* Type of RPCAPD Authentication */
typedef enum {
CAPTURE_AUTH_NULL, /**< No authentication */
CAPTURE_AUTH_PWD /**< User/password authentication */
} capture_auth;
#endif
#ifdef HAVE_PCAP_SETSAMPLING
/**
* Method of packet sampling (dropping some captured packets),
* may require additional integer parameter, marked here as N
*/
typedef enum {
CAPTURE_SAMP_NONE, /**< No sampling - capture all packets */
CAPTURE_SAMP_BY_COUNT, /**< Counter-based sampling -
capture 1 packet from every N */
CAPTURE_SAMP_BY_TIMER /**< Timer-based sampling -
capture no more than 1 packet
in N milliseconds */
} capture_sampling;
#endif
#ifdef HAVE_PCAP_REMOTE
struct remote_host_info {
gchar *remote_host; /**< Host name or network address for remote capturing */
gchar *remote_port; /**< TCP port of remote RPCAP server */
capture_auth auth_type; /**< Authentication type */
gchar *auth_username; /**< Remote authentication parameters */
gchar *auth_password; /**< Remote authentication parameters */
gboolean datatx_udp;
gboolean nocap_rpcap;
gboolean nocap_local;
};
struct remote_host {
gchar *r_host; /**< Host name or network address for remote capturing */
gchar *remote_port; /**< TCP port of remote RPCAP server */
capture_auth auth_type; /**< Authentication type */
gchar *auth_username; /**< Remote authentication parameters */
gchar *auth_password; /**< Remote authentication parameters */
};
typedef struct remote_options_tag {
capture_source src_type;
struct remote_host_info remote_host_opts;
#ifdef HAVE_PCAP_SETSAMPLING
capture_sampling sampling_method;
int sampling_param;
#endif
} remote_options;
#endif /* HAVE_PCAP_REMOTE */
typedef struct interface_tag {
gchar *name;
gchar *display_name;
gchar *friendly_name;
gchar *vendor_description;
guint type;
gchar *addresses;
gint no_addresses;
gchar *cfilter;
GList *links;
gint active_dlt;
gboolean pmode;
gboolean has_snaplen;
int snaplen;
gboolean local;
#ifdef CAN_SET_CAPTURE_BUFFER_SIZE
gint buffer;
#endif
#ifdef HAVE_PCAP_CREATE
gboolean monitor_mode_enabled;
gboolean monitor_mode_supported;
#endif
#ifdef HAVE_PCAP_REMOTE
remote_options remote_opts;
#endif
guint32 last_packets;
guint32 packet_diff;
if_info_t if_info;
gboolean selected;
gboolean hidden;
/* External capture cached data */
GHashTable *external_cap_args_settings;
gchar *timestamp_type;
} interface_t;
typedef struct link_row_tag {
gchar *name;
gint dlt;
} link_row;
typedef struct interface_options_tag {
gchar *name; /* the name of the interface supplied to libpcap/WinPcap/Npcap to specify the interface */
gchar *descr; /* a more user-friendly description of the interface; may be NULL if none */
gchar *hardware; /* description of the hardware */
gchar *display_name; /* the name displayed in the console and title bar */
gchar *ifname; /* if not null, name to use instead of the interface naem in IDBs */
gchar *cfilter;
gboolean has_snaplen;
int snaplen;
int linktype;
gboolean promisc_mode;
interface_type if_type;
gchar *extcap;
gchar *extcap_fifo;
GHashTable *extcap_args;
GPid extcap_pid; /* pid of running process or WS_INVALID_PID */
gpointer extcap_pipedata;
guint extcap_child_watch;
#ifdef _WIN32
HANDLE extcap_pipe_h;
HANDLE extcap_control_in_h;
HANDLE extcap_control_out_h;
#endif
gchar *extcap_control_in;
gchar *extcap_control_out;
#ifdef CAN_SET_CAPTURE_BUFFER_SIZE
int buffer_size;
#endif
gboolean monitor_mode;
#ifdef HAVE_PCAP_REMOTE
capture_source src_type;
gchar *remote_host;
gchar *remote_port;
capture_auth auth_type;
gchar *auth_username;
gchar *auth_password;
gboolean datatx_udp;
gboolean nocap_rpcap;
gboolean nocap_local;
#endif
#ifdef HAVE_PCAP_SETSAMPLING
capture_sampling sampling_method;
int sampling_param;
#endif
gchar *timestamp_type; /* requested timestamp as string */
int timestamp_type_id; /* Timestamp type to pass to pcap_set_tstamp_type.
only valid if timestamp_type != NULL */
} interface_options;
/** Capture options coming from user interface */
typedef struct capture_options_tag {
/* general */
GArray *ifaces; /**< the interfaces to use for the
next capture, entries are of
type interface_options */
GArray *all_ifaces; /**< all interfaces, entries are
of type interface_t */
int ifaces_err; /**< if all_ifaces is null, the error
when it was fetched, if any */
gchar *ifaces_err_info; /**< error string for that error */
guint num_selected;
/*
* Options to be applied to all interfaces.
*
* Some of these can be set from the GUI, others can't; setting
* the link-layer header type, for example, doesn't necessarily
* make sense, as different interfaces may support different sets
* of link-layer header types.
*
* Some that can't be set from the GUI can be set from the command
* line, by specifying them before any interface is specified.
* This includes the link-layer header type, so if somebody asks
* for a link-layer header type that an interface on which they're
* capturing doesn't support, we should report an error and fail
* to capture.
*
* These can be overridden per-interface.
*/
interface_options default_options;
gboolean saving_to_file; /**< TRUE if capture is writing to a file */
gchar *save_file; /**< the capture file name */
gboolean group_read_access; /**< TRUE is group read permission needs to be set */
gboolean use_pcapng; /**< TRUE if file format is pcapng */
/* GUI related */
gboolean real_time_mode; /**< Update list of packets in real time */
gboolean show_info; /**< show the info dialog. */
gboolean restart; /**< restart after closing is done */
gchar *orig_save_file; /**< the original capture file name (saved for a restart) */
/* multiple files (and ringbuffer) */
gboolean multi_files_on; /**< TRUE if ring buffer in use */
gboolean has_file_duration; /**< TRUE if ring duration specified */
gdouble file_duration; /**< Switch file after n seconds */
gboolean has_file_interval; /**< TRUE if ring interval specified */
gint32 file_interval; /**< Create time intervals of n seconds */
gboolean has_file_packets; /**< TRUE if ring packet count is
specified */
int file_packets; /**< Switch file after n packets */
gboolean has_ring_num_files; /**< TRUE if ring num_files specified */
guint32 ring_num_files; /**< Number of multiple buffer files */
/* autostop conditions */
gboolean has_autostop_files; /**< TRUE if maximum number of capture files
are specified */
int autostop_files; /**< Maximum number of capture files */
gboolean has_autostop_packets; /**< TRUE if maximum packet count is
specified */
int autostop_packets; /**< Maximum packet count */
gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
is specified */
guint32 autostop_filesize; /**< Maximum capture file size in kB */
gboolean has_autostop_duration; /**< TRUE if maximum capture duration
is specified */
gdouble autostop_duration; /**< Maximum capture duration */
gchar *capture_comment; /** capture comment to write to the
output file */
gboolean print_file_names; /**< TRUE if printing names of completed
files as we close them */
gchar *print_name_to; /**< output file name */
/* internally used (don't touch from outside) */
gboolean output_to_pipe; /**< save_file is a pipe (named or stdout) */
gboolean capture_child; /**< hidden option: Wireshark child mode */
gchar *compress_type; /**< compress type */
} capture_options;
/* initialize the capture_options with some reasonable values */
extern void
capture_opts_init(capture_options *capture_opts);
/* clean internal structures */
extern void
capture_opts_cleanup(capture_options *capture_opts);
/* set a command line option value */
extern int
capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg);
/* log content of capture_opts */
extern void
capture_opts_log(const char *log_domain, GLogLevelFlags log_level, capture_options *capture_opts);
enum caps_query {
CAPS_QUERY_LINK_TYPES = 0x1,
CAPS_QUERY_TIMESTAMP_TYPES = 0x2
};
/* print interface capabilities, including link layer types */
extern int
capture_opts_print_if_capabilities(if_capabilities_t *caps,
interface_options *interface_opts,
int queries);
/* print list of interfaces */
extern void
capture_opts_print_interfaces(GList *if_list);
/* trim the snaplen entry */
extern void
capture_opts_trim_snaplen(capture_options *capture_opts, int snaplen_min);
/* trim the ring_num_files entry */
extern void
capture_opts_trim_ring_num_files(capture_options *capture_opts);
/* pick default interface if none was specified */
extern int
capture_opts_default_iface_if_necessary(capture_options *capture_opts,
const char *capture_device);
extern void
capture_opts_del_iface(capture_options *capture_opts, guint if_index);
extern void
collect_ifaces(capture_options *capture_opts);
extern void
capture_opts_free_interface_t(interface_t *device);
/* Default capture buffer size in Mbytes. */
#define DEFAULT_CAPTURE_BUFFER_SIZE 2
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __CAPTURE_OPTS_H__ */
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/