2 * Definitions for file structures and routines
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 #include "packet-range.h"
29 #include "wiretap/wtap.h"
30 #include <epan/dfilter/dfilter.h>
33 #include <epan/epan.h>
38 /** Return values from functions that only can succeed or fail. */
40 CF_OK, /**< operation succeeded */
41 CF_ERROR /**< operation got an error (function may provide err with details) */
44 /** Return values from functions that read capture files. */
46 CF_READ_OK, /**< operation succeeded */
47 CF_READ_ERROR, /**< operation got an error (function may provide err with details) */
48 CF_READ_ABORTED /**< operation aborted by user */
51 /** Return values from functions that print sets of packets. */
53 CF_PRINT_OK, /**< print operation succeeded */
54 CF_PRINT_OPEN_ERROR, /**< print operation failed while opening printer */
55 CF_PRINT_WRITE_ERROR /**< print operation failed while writing to the printer */
61 cf_cb_file_read_started,
62 cf_cb_file_read_finished,
63 cf_cb_packet_selected,
64 cf_cb_packet_unselected,
65 cf_cb_field_unselected,
66 cf_cb_file_save_started,
67 cf_cb_file_save_finished,
68 cf_cb_file_save_reload_finished,
69 cf_cb_file_save_failed
72 typedef void (*cf_callback_t) (gint event, gpointer data, gpointer user_data);
75 cf_callback_add(cf_callback_t func, gpointer user_data);
78 cf_callback_remove(cf_callback_t func);
81 * Open a capture file.
83 * @param cf the capture file to be opened
84 * @param fname the filename to be opened
85 * @param is_tempfile is this a temporary file?
86 * @return one of cf_status_t
88 cf_status_t cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err);
91 * Close a capture file.
93 * @param cf the capture file to be closed
95 void cf_close(capture_file *cf);
98 * Reload a capture file.
100 * @param cf the capture file to be reloaded
102 void cf_reload(capture_file *cf);
105 * Read all packets of a capture file into the internal structures.
107 * @param cf the capture file to be read
108 * @param from_save reread asked from cf_save
109 * @return one of cf_read_status_t
111 cf_read_status_t cf_read(capture_file *cf, gboolean from_save);
113 gboolean cf_read_frame_r(capture_file *cf, frame_data *fdata,
114 union wtap_pseudo_header *pseudo_header, guint8 *pd,
115 int *err, gchar **err_info);
117 gboolean cf_read_frame(capture_file *cf, frame_data *fdata,
118 int *err, gchar **err_info);
121 * Start reading from the end of a capture file.
122 * This is used in "Update list of packets in Real-Time".
124 * @param cf the capture file to be read from
125 * @param fname the filename to be read from
126 * @param is_tempfile is this a temporary file?
127 * @param err the error code, if an error had occured
128 * @return one of cf_status_t
130 cf_status_t cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err);
133 * Read packets from the "end" of a capture file.
135 * @param cf the capture file to be read from
136 * @param to_read the number of packets to read
137 * @param err the error code, if an error had occured
138 * @return one of cf_read_status_t
140 cf_read_status_t cf_continue_tail(capture_file *cf, volatile int to_read, int *err);
143 * Finish reading from "end" of a capture file.
145 * @param cf the capture file to be read from
146 * @param err the error code, if an error had occured
147 * @return one of cf_read_status_t
149 cf_read_status_t cf_finish_tail(capture_file *cf, int *err);
152 * Determine whether this capture file (or a range of it) can be saved
153 * (except by copying the raw file data).
155 * @param cf the capture file to check
156 * @return TRUE if it can be saved, FALSE if it can't
158 gboolean cf_can_save_as(capture_file *cf);
161 * Save a capture file (or a range of it).
163 * @param cf the capture file to save to
164 * @param fname the filename to save to
165 * @param range the range of packets to save
166 * @param save_format the format of the file to save (libpcap, ...)
167 * @param compressed whether to gzip compress the file
168 * @return one of cf_status_t
170 cf_status_t cf_save(capture_file * cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed);
173 * Get a displayable name of the capture file.
175 * @param cf the capture file
176 * @return the displayable name (don't have to be g_free'd)
178 const gchar *cf_get_display_name(capture_file *cf);
181 * Set the source of the capture data for temporary files, e.g.
182 * "Interface eth0" or "Pipe from Pong"
184 * @param cf the capture file
185 * @param source the source description. this will be copied internally.
187 void cf_set_tempfile_source(capture_file *cf, gchar *source);
190 * Get the source of the capture data for temporary files. Guaranteed to
191 * return a non-null value. The returned value should not be freed.
193 * @param cf the capture file
194 * @param source the source description. this will be copied internally.
196 const gchar *cf_get_tempfile_source(capture_file *cf);
199 * Get the number of packets in the capture file.
201 * @param cf the capture file
202 * @return the number of packets in the capture file
204 int cf_get_packet_count(capture_file *cf);
207 * Set the number of packets in the capture file.
209 * @param cf the capture file
210 * @param the number of packets in the capture file
212 void cf_set_packet_count(capture_file *cf, int packet_count);
215 * Is this capture file a temporary file?
217 * @param cf the capture file
218 * @return TRUE if it's a temporary file, FALSE otherwise
220 gboolean cf_is_tempfile(capture_file *cf);
223 * Set flag, that this file is a tempfile.
225 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile);
228 * Set flag, if the number of packet drops while capturing are known or not.
230 * @param cf the capture file
231 * @param drops_known TRUE if the number of packet drops are known, FALSE otherwise
233 void cf_set_drops_known(capture_file *cf, gboolean drops_known);
236 * Set the number of packet drops while capturing.
238 * @param cf the capture file
239 * @param drops the number of packet drops occured while capturing
241 void cf_set_drops(capture_file *cf, guint32 drops);
244 * Get flag state, if the number of packet drops while capturing are known or not.
246 * @param cf the capture file
247 * @return TRUE if the number of packet drops are known, FALSE otherwise
249 gboolean cf_get_drops_known(capture_file *cf);
252 * Get the number of packet drops while capturing.
254 * @param cf the capture file
255 * @return the number of packet drops occured while capturing
257 guint32 cf_get_drops(capture_file *cf);
260 * Set the read filter.
261 * @todo this shouldn't be required, remove it somehow
263 * @param cf the capture file
264 * @param rfcode the readfilter
266 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode);
269 * "Display Filter" packets in the capture file.
271 * @param cf the capture file
272 * @param dfilter the display filter
273 * @param force TRUE if do in any case, FALSE only if dfilter changed
274 * @return one of cf_status_t
276 cf_status_t cf_filter_packets(capture_file *cf, gchar *dfilter, gboolean force);
279 * At least one "Refence Time" flag has changed, rescan all packets.
281 * @param cf the capture file
283 void cf_reftime_packets(capture_file *cf);
286 * Return the time it took to load the file
288 gulong cf_get_computed_elapsed(void);
291 * The coloring rules have changed, redo coloring
293 * @param cf the capture file
295 void cf_colorize_packets(capture_file *cf);
298 * "Something" has changed, rescan all packets.
300 * @param cf the capture file
302 void cf_redissect_packets(capture_file *cf);
305 * Rescan all packets and just run taps - don't reconstruct the display.
307 * @param cf the capture file
308 * @return one of cf_read_status_t
310 cf_read_status_t cf_retap_packets(capture_file *cf);
313 * The time format has changed, rescan all packets.
315 * @param cf the capture file
317 void cf_change_time_formats(capture_file *cf);
320 * Adjust timestamp precision if auto is selected.
322 * @param cf the capture file
324 void cf_timestamp_auto_precision(capture_file *cf);
327 * Print the capture file.
329 * @param cf the capture file
330 * @param print_args the arguments what and how to print
331 * @return one of cf_print_status_t
333 cf_print_status_t cf_print_packets(capture_file *cf, print_args_t *print_args);
336 * Print (export) the capture file into PDML format.
338 * @param cf the capture file
339 * @param print_args the arguments what and how to export
340 * @return one of cf_print_status_t
342 cf_print_status_t cf_write_pdml_packets(capture_file *cf, print_args_t *print_args);
345 * Print (export) the capture file into PSML format.
347 * @param cf the capture file
348 * @param print_args the arguments what and how to export
349 * @return one of cf_print_status_t
351 cf_print_status_t cf_write_psml_packets(capture_file *cf, print_args_t *print_args);
354 * Print (export) the capture file into CSV format.
356 * @param cf the capture file
357 * @param print_args the arguments what and how to export
358 * @return one of cf_print_status_t
360 cf_print_status_t cf_write_csv_packets(capture_file *cf, print_args_t *print_args);
363 * Print (export) the capture file into C Arrays format.
365 * @param cf the capture file
366 * @param print_args the arguments what and how to export
367 * @return one of cf_print_status_t
369 cf_print_status_t cf_write_carrays_packets(capture_file *cf, print_args_t *print_args);
372 * Find Packet in protocol tree.
374 * @param cf the capture file
375 * @param string the string to find
376 * @return TRUE if a packet was found, FALSE otherwise
378 gboolean cf_find_packet_protocol_tree(capture_file *cf, const char *string);
381 * Find Packet in summary line.
383 * @param cf the capture file
384 * @param string the string to find
385 * @return TRUE if a packet was found, FALSE otherwise
387 gboolean cf_find_packet_summary_line(capture_file *cf, const char *string);
390 * Find Packet in packet data.
392 * @param cf the capture file
393 * @param string the string to find
394 * @param string_size the size of the string to find
395 * @return TRUE if a packet was found, FALSE otherwise
397 gboolean cf_find_packet_data(capture_file *cf, const guint8 *string,
401 * Find Packet by display filter.
403 * @param cf the capture file
404 * @param sfcode the display filter to find a packet for
405 * @return TRUE if a packet was found, FALSE otherwise
407 gboolean cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode);
410 * GoTo Packet in first row.
412 * @param cf the capture file
413 * @return TRUE if the first row exists, FALSE otherwise
415 gboolean cf_goto_top_frame(capture_file *cf);
418 * GoTo Packet in last row.
420 * @param cf the capture file
421 * @return TRUE if last row exists, FALSE otherwise
423 gboolean cf_goto_bottom_frame(capture_file *cf);
426 * GoTo Packet with the given row.
428 * @param cf the capture file
429 * @param row the row to go to
430 * @return TRUE if this row exists, FALSE otherwise
432 gboolean cf_goto_frame(capture_file *cf, guint row);
435 * Go to frame specified by currently selected protocol tree field.
436 * (Go To Corresponding Packet)
437 * @todo this is ugly and should be improved!
439 * @param cf the capture file
440 * @return TRUE if this packet exists, FALSE otherwise
442 gboolean cf_goto_framenum(capture_file *cf);
445 * Select the packet in the given row.
447 * @param cf the capture file
448 * @param row the row to select
450 void cf_select_packet(capture_file *cf, int row);
453 * Unselect all packets, if any.
455 * @param cf the capture file
456 * @param row the row to select
458 void cf_unselect_packet(capture_file *cf);
461 * Unselect all protocol tree fields, if any.
463 * @param cf the capture file
464 * @param row the row to select
466 void cf_unselect_field(capture_file *cf);
469 * Mark a particular frame in a particular capture.
471 * @param cf the capture file
472 * @param frame the frame to be marked
474 void cf_mark_frame(capture_file *cf, frame_data *frame);
477 * Unmark a particular frame in a particular capture.
479 * @param cf the capture file
480 * @param frame the frame to be unmarked
482 void cf_unmark_frame(capture_file *cf, frame_data *frame);
485 * Ignore a particular frame in a particular capture.
487 * @param cf the capture file
488 * @param frame the frame to be ignored
490 void cf_ignore_frame(capture_file *cf, frame_data *frame);
493 * Unignore a particular frame in a particular capture.
495 * @param cf the capture file
496 * @param frame the frame to be unignored
498 void cf_unignore_frame(capture_file *cf, frame_data *frame);
501 * Convert error number and info to a complete message.
503 * @param err the error number
504 * @param err_info a string with additional details about this error
505 * @return statically allocated error message
507 char *cf_read_error_message(int err, gchar *err_info);
510 * Merge two (or more) capture files into one.
511 * @todo is this the right place for this function? It doesn't have to do a lot with capture_file.
513 * @param out_filename pointer to output filename; if output filename is
514 * NULL, a temporary file name is generated and *out_filename is set
515 * to point to the generated file name
516 * @param in_file_count the number of input files to merge
517 * @param in_filnames array of input filenames
518 * @param file_type the output filetype
519 * @param do_append FALSE to merge chronologically, TRUE simply append
520 * @return one of cf_status_t
523 cf_merge_files(char **out_filename, int in_file_count,
524 char *const *in_filenames, int file_type, gboolean do_append);
526 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
527 void read_keytab_file(const char *);