2 * Definitions for file structures and routines
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
8 * SPDX-License-Identifier: GPL-2.0-or-later
16 #include <wiretap/wtap.h>
17 #include <epan/epan.h>
18 #include <epan/print.h>
19 #include <ui/packet_range.h>
23 #endif /* __cplusplus */
25 /** Return values from functions that only can succeed or fail. */
27 CF_OK, /**< operation succeeded */
28 CF_ERROR /**< operation got an error (function may provide err with details) */
31 /** Return values from functions that read capture files. */
33 CF_READ_OK, /**< operation succeeded */
34 CF_READ_ERROR, /**< operation got an error (function may provide err with details) */
35 CF_READ_ABORTED /**< operation aborted by user */
38 /** Return values from functions that write out packets. */
40 CF_WRITE_OK, /**< operation succeeded */
41 CF_WRITE_ERROR, /**< operation got an error (function may provide err with details) */
42 CF_WRITE_ABORTED /**< operation aborted by user */
45 /** Return values from functions that print sets of packets. */
47 CF_PRINT_OK, /**< print operation succeeded */
48 CF_PRINT_OPEN_ERROR, /**< print operation failed while opening printer */
49 CF_PRINT_WRITE_ERROR /**< print operation failed while writing to the printer */
56 cf_cb_file_read_started,
57 cf_cb_file_read_finished,
58 cf_cb_file_reload_started,
59 cf_cb_file_reload_finished,
60 cf_cb_file_rescan_started,
61 cf_cb_file_rescan_finished,
62 cf_cb_file_retap_started,
63 cf_cb_file_retap_finished,
64 cf_cb_file_merge_started, /* Qt only */
65 cf_cb_file_merge_finished, /* Qt only */
66 cf_cb_file_fast_save_finished, /* GTK+ only? */
67 cf_cb_packet_selected, /* GTK+ only. */
68 cf_cb_packet_unselected, /* GTK+ only. */
69 cf_cb_field_unselected, /* GTK+ only. */
70 cf_cb_file_save_started,
71 cf_cb_file_save_finished,
72 cf_cb_file_save_failed,
73 cf_cb_file_save_stopped,
74 cf_cb_file_export_specified_packets_started, /* GTK+ only. */
75 cf_cb_file_export_specified_packets_finished, /* GTK+ only. */
76 cf_cb_file_export_specified_packets_failed, /* GTK+ only. */
77 cf_cb_file_export_specified_packets_stopped /* GTK+ only. */
80 typedef void (*cf_callback_t) (gint event, gpointer data, gpointer user_data);
86 gboolean frame_matched;
91 * Add a capture file event callback.
93 * @param func The function to be called for each event.
94 * The function will be passed three parameters: The event type (event),
95 * event-dependent data (data), and user-supplied data (user_data).
96 * Event-dependent data may be a capture_file pointer, character pointer,
98 * @param user_data User-supplied data to pass to the callback. May be NULL.
102 cf_callback_add(cf_callback_t func, gpointer user_data);
105 * Remove a capture file event callback.
107 * @param func The function to be removed.
108 * @param user_data User-supplied data. Must be the same value supplied to cf_callback_add.
112 cf_callback_remove(cf_callback_t func, gpointer user_data);
115 * Open a capture file.
117 * @param cf the capture file to be opened
118 * @param fname the filename to be opened
119 * @param type WTAP_TYPE_AUTO for automatic or index to direct open routine
120 * @param is_tempfile is this a temporary file?
121 * @param err error code
122 * @return one of cf_status_t
124 cf_status_t cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err);
127 * Close a capture file.
129 * @param cf the capture file to be closed
131 void cf_close(capture_file *cf);
134 * Reload a capture file.
136 * @param cf the capture file to be reloaded
138 void cf_reload(capture_file *cf);
141 * Read all packets of a capture file into the internal structures.
143 * @param cf the capture file to be read
144 * @param from_save reread asked from cf_save_records
145 * @return one of cf_read_status_t
147 cf_read_status_t cf_read(capture_file *cf, gboolean from_save);
150 * Read the metadata and raw data for a record. It will pop
151 * up an alert box if there's an error.
153 * @param cf the capture file from which to read the record
154 * @param fdata the frame_data structure for the record in question
155 * @param rec pointer to a wtap_rec structure to contain the
157 * @param buf a Buffer into which to read the record's raw data
158 * @return TRUE if the read succeeded, FALSE if there was an error
160 gboolean cf_read_record_r(capture_file *cf, const frame_data *fdata,
161 wtap_rec *rec, Buffer *buf);
164 * Read the metadata and raw data for a record into a
165 * capture_file structure's phdr and buf members.
166 * It will pop up an alert box if there's an error.
168 * @param cf the capture file from which to read the record
169 * @param fdata the frame_data structure for the record in question
170 * @return TRUE if the read succeeded, FALSE if there was an error
172 gboolean cf_read_record(capture_file *cf, frame_data *fdata);
175 * Read packets from the "end" of a capture file.
177 * @param cf the capture file to be read from
178 * @param to_read the number of packets to read
179 * @param err the error code, if an error had occurred
180 * @return one of cf_read_status_t
182 cf_read_status_t cf_continue_tail(capture_file *cf, volatile int to_read, int *err);
185 * Fake reading packets from the "end" of a capture file.
187 * @param cf the capture file to be read from
189 void cf_fake_continue_tail(capture_file *cf);
192 * Finish reading from "end" of a capture file.
194 * @param cf the capture file to be read from
195 * @param err the error code, if an error had occurred
196 * @return one of cf_read_status_t
198 cf_read_status_t cf_finish_tail(capture_file *cf, int *err);
201 * Determine whether this capture file (or a range of it) can be written
202 * in any format using Wiretap rather than by copying the raw data.
204 * @param cf the capture file to check
205 * @return TRUE if it can be written, FALSE if it can't
207 gboolean cf_can_write_with_wiretap(capture_file *cf);
210 * Determine whether this capture file can be saved with a "save" operation;
211 * if there's nothing unsaved, it can't.
213 * @param cf the capture file to check
214 * @return TRUE if it can be saved, FALSE if it can't
216 gboolean cf_can_save(capture_file *cf);
219 * Determine whether this capture file can be saved with a "save as" operation.
221 * @param cf the capture file to check
222 * @return TRUE if it can be saved, FALSE if it can't
224 gboolean cf_can_save_as(capture_file *cf);
227 * Determine whether this capture file has unsaved data.
229 * @param cf the capture file to check
230 * @return TRUE if it has unsaved data, FALSE if it doesn't
232 gboolean cf_has_unsaved_data(capture_file *cf);
235 * Save all packets in a capture file to a new file, and, if that succeeds,
236 * make that file the current capture file. If there's already a file with
237 * that name, do a "safe save", writing to a temporary file in the same
238 * directory and, if the write succeeds, renaming the new file on top of the
239 * old file, so that if the write fails, the old file is still intact.
241 * @param cf the capture file to save to
242 * @param fname the filename to save to
243 * @param save_format the format of the file to save (libpcap, ...)
244 * @param compressed whether to gzip compress the file
245 * @param discard_comments TRUE if we should discard comments if the save
246 * succeeds (because we saved in a format that doesn't support
248 * @param dont_reopen TRUE if it shouldn't reopen and make that file the
249 * current capture file
250 * @return one of cf_write_status_t
252 cf_write_status_t cf_save_records(capture_file * cf, const char *fname,
253 guint save_format, gboolean compressed,
254 gboolean discard_comments,
255 gboolean dont_reopen);
258 * Export some or all packets from a capture file to a new file. If there's
259 * already a file with that name, do a "safe save", writing to a temporary
260 * file in the same directory and, if the write succeeds, renaming the new
261 * file on top of the old file, so that if the write fails, the old file is
264 * @param cf the capture file to write to
265 * @param fname the filename to write to
266 * @param range the range of packets to write
267 * @param save_format the format of the file to write (libpcap, ...)
268 * @param compressed whether to gzip compress the file
269 * @return one of cf_write_status_t
271 cf_write_status_t cf_export_specified_packets(capture_file *cf,
273 packet_range_t *range,
275 gboolean compressed);
278 * Get a displayable name of the capture file.
280 * @param cf the capture file
281 * @return the displayable name (must be g_free'd)
283 gchar *cf_get_display_name(capture_file *cf);
286 * Set the source of the capture data for temporary files, e.g.
287 * "Interface eth0" or "Pipe from Pong"
289 * @param cf the capture file
290 * @param source the source description. this will be copied internally.
292 void cf_set_tempfile_source(capture_file *cf, gchar *source);
295 * Get the source of the capture data for temporary files. Guaranteed to
296 * return a non-null value. The returned value should not be freed.
298 * @param cf the capture file
300 const gchar *cf_get_tempfile_source(capture_file *cf);
303 * Get the number of packets in the capture file.
305 * @param cf the capture file
306 * @return the number of packets in the capture file
308 int cf_get_packet_count(capture_file *cf);
311 * Is this capture file a temporary file?
313 * @param cf the capture file
314 * @return TRUE if it's a temporary file, FALSE otherwise
316 gboolean cf_is_tempfile(capture_file *cf);
319 * Set flag, that this file is a tempfile.
321 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile);
324 * Set flag, if the number of packet drops while capturing are known or not.
326 * @param cf the capture file
327 * @param drops_known TRUE if the number of packet drops are known, FALSE otherwise
329 void cf_set_drops_known(capture_file *cf, gboolean drops_known);
332 * Set the number of packet drops while capturing.
334 * @param cf the capture file
335 * @param drops the number of packet drops occurred while capturing
337 void cf_set_drops(capture_file *cf, guint32 drops);
340 * Get flag state, if the number of packet drops while capturing are known or not.
342 * @param cf the capture file
343 * @return TRUE if the number of packet drops are known, FALSE otherwise
345 gboolean cf_get_drops_known(capture_file *cf);
348 * Get the number of packet drops while capturing.
350 * @param cf the capture file
351 * @return the number of packet drops occurred while capturing
353 guint32 cf_get_drops(capture_file *cf);
356 * Set the read filter.
357 * @todo this shouldn't be required, remove it somehow
359 * @param cf the capture file
360 * @param rfcode the readfilter
362 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode);
365 * "Display Filter" packets in the capture file.
367 * @param cf the capture file
368 * @param dfilter the display filter
369 * @param force TRUE if do in any case, FALSE only if dfilter changed
370 * @return one of cf_status_t
372 cf_status_t cf_filter_packets(capture_file *cf, gchar *dfilter, gboolean force);
375 * At least one "Refence Time" flag has changed, rescan all packets.
377 * @param cf the capture file
379 void cf_reftime_packets(capture_file *cf);
382 * Return the time it took to load the file (in msec).
384 gulong cf_get_computed_elapsed(capture_file *cf);
387 * "Something" has changed, rescan all packets.
389 * @param cf the capture file
391 void cf_redissect_packets(capture_file *cf);
394 * Rescan all packets and just run taps - don't reconstruct the display.
396 * @param cf the capture file
397 * @return one of cf_read_status_t
399 cf_read_status_t cf_retap_packets(capture_file *cf);
402 * Adjust timestamp precision if auto is selected.
404 * @param cf the capture file
406 void cf_timestamp_auto_precision(capture_file *cf);
408 /* print_range, enum which frames should be printed */
410 print_range_selected_only, /* selected frame(s) only (currently only one) */
411 print_range_marked_only, /* marked frames only */
412 print_range_all_displayed, /* all frames currently displayed */
413 print_range_all_captured /* all frames in capture */
417 print_stream_t *stream; /* the stream to which we're printing */
418 print_format_e format; /* plain text or PostScript */
419 gboolean to_file; /* TRUE if we're printing to a file */
420 char *file; /* file output pathname */
421 char *cmd; /* print command string (not win32) */
422 packet_range_t range;
424 gboolean print_summary; /* TRUE if we should print summary line. */
425 gboolean print_col_headings; /* TRUE if we should print column headings */
426 print_dissections_e print_dissections;
427 gboolean print_hex; /* TRUE if we should print hex data;
428 * FALSE if we should print only if not dissected. */
429 gboolean print_formfeed; /* TRUE if a formfeed should be printed before
434 * Print the capture file.
436 * @param cf the capture file
437 * @param print_args the arguments what and how to print
438 * @param show_progress_bar TRUE if a progress bar is to be shown
439 * @return one of cf_print_status_t
441 cf_print_status_t cf_print_packets(capture_file *cf, print_args_t *print_args,
442 gboolean show_progress_bar);
445 * Print (export) the capture file into PDML format.
447 * @param cf the capture file
448 * @param print_args the arguments what and how to export
449 * @return one of cf_print_status_t
451 cf_print_status_t cf_write_pdml_packets(capture_file *cf, print_args_t *print_args);
454 * Print (export) the capture file into PSML format.
456 * @param cf the capture file
457 * @param print_args the arguments what and how to export
458 * @return one of cf_print_status_t
460 cf_print_status_t cf_write_psml_packets(capture_file *cf, print_args_t *print_args);
463 * Print (export) the capture file into CSV format.
465 * @param cf the capture file
466 * @param print_args the arguments what and how to export
467 * @return one of cf_print_status_t
469 cf_print_status_t cf_write_csv_packets(capture_file *cf, print_args_t *print_args);
472 * Print (export) the capture file into C Arrays format.
474 * @param cf the capture file
475 * @param print_args the arguments what and how to export
476 * @return one of cf_print_status_t
478 cf_print_status_t cf_write_carrays_packets(capture_file *cf, print_args_t *print_args);
481 * Print (export) the capture file into JSON format.
483 * @param cf the capture file
484 * @param print_args the arguments what and how to export
485 * @return one of cf_print_status_t
487 cf_print_status_t cf_write_json_packets(capture_file *cf, print_args_t *print_args);
490 * Find packet with a protocol tree item that contains a specified text string.
492 * @param cf the capture file
493 * @param string the string to find
494 * @param dir direction in which to search
495 * @return TRUE if a packet was found, FALSE otherwise
497 gboolean cf_find_packet_protocol_tree(capture_file *cf, const char *string,
498 search_direction dir);
501 * Find field with a label that contains text string cfile->sfilter.
503 * @param cf the capture file
504 * @param tree the protocol tree
505 * @param mdata the first field (mdata->finfo) that matched the string
506 * @return TRUE if a packet was found, FALSE otherwise
508 extern gboolean cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree,
512 * Find packet whose summary line contains a specified text string.
514 * @param cf the capture file
515 * @param string the string to find
516 * @param dir direction in which to search
517 * @return TRUE if a packet was found, FALSE otherwise
519 gboolean cf_find_packet_summary_line(capture_file *cf, const char *string,
520 search_direction dir);
523 * Find packet whose data contains a specified byte string.
525 * @param cf the capture file
526 * @param string the string to find
527 * @param string_size the size of the string to find
528 * @param dir direction in which to search
529 * @return TRUE if a packet was found, FALSE otherwise
531 gboolean cf_find_packet_data(capture_file *cf, const guint8 *string,
532 size_t string_size, search_direction dir);
535 * Find packet that matches a compiled display filter.
537 * @param cf the capture file
538 * @param sfcode the display filter to match
539 * @param dir direction in which to search
540 * @return TRUE if a packet was found, FALSE otherwise
542 gboolean cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
543 search_direction dir);
546 * Find packet that matches a display filter given as a text string.
548 * @param cf the capture file
549 * @param filter the display filter to match
550 * @param dir direction in which to search
551 * @return TRUE if a packet was found, FALSE otherwise
554 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
555 search_direction dir);
558 * Find marked packet.
560 * @param cf the capture file
561 * @param dir direction in which to search
562 * @return TRUE if a packet was found, FALSE otherwise
564 gboolean cf_find_packet_marked(capture_file *cf, search_direction dir);
567 * Find time-reference packet.
569 * @param cf the capture file
570 * @param dir direction in which to search
571 * @return TRUE if a packet was found, FALSE otherwise
573 gboolean cf_find_packet_time_reference(capture_file *cf, search_direction dir);
576 * GoTo Packet with the given row.
578 * @param cf the capture file
579 * @param row the row to go to
580 * @return TRUE if this row exists, FALSE otherwise
582 gboolean cf_goto_frame(capture_file *cf, guint row);
585 * Go to frame specified by currently selected protocol tree field.
586 * (Go To Corresponding Packet)
587 * @todo this is ugly and should be improved!
589 * @param cf the capture file
590 * @return TRUE if this packet exists, FALSE otherwise
592 gboolean cf_goto_framenum(capture_file *cf);
595 * Select the packet in the given row.
597 * @param cf the capture file
598 * @param row the row to select
600 void cf_select_packet(capture_file *cf, int row);
603 * Unselect all packets, if any.
605 * @param cf the capture file
607 void cf_unselect_packet(capture_file *cf);
610 * Unselect all protocol tree fields, if any.
612 * @param cf the capture file
614 void cf_unselect_field(capture_file *cf);
617 * Mark a particular frame in a particular capture.
619 * @param cf the capture file
620 * @param frame the frame to be marked
622 void cf_mark_frame(capture_file *cf, frame_data *frame);
625 * Unmark a particular frame in a particular capture.
627 * @param cf the capture file
628 * @param frame the frame to be unmarked
630 void cf_unmark_frame(capture_file *cf, frame_data *frame);
633 * Ignore a particular frame in a particular capture.
635 * @param cf the capture file
636 * @param frame the frame to be ignored
638 void cf_ignore_frame(capture_file *cf, frame_data *frame);
641 * Unignore a particular frame in a particular capture.
643 * @param cf the capture file
644 * @param frame the frame to be unignored
646 void cf_unignore_frame(capture_file *cf, frame_data *frame);
649 * Merge two or more capture files into a temporary file.
650 * @todo is this the right place for this function? It doesn't have to do a lot with capture_file.
652 * @param pd_window Window pointer suitable for use by delayed_create_progress_dlg.
653 * @param out_filenamep Points to a pointer that's set to point to the
654 * pathname of the temporary file; it's allocated with g_malloc()
655 * @param in_file_count the number of input files to merge
656 * @param in_filenames array of input filenames
657 * @param file_type the output filetype
658 * @param do_append FALSE to merge chronologically, TRUE simply append
659 * @return one of cf_status_t
662 cf_merge_files_to_tempfile(gpointer pd_window, char **out_filenamep,
663 int in_file_count, char *const *in_filenames,
664 int file_type, gboolean do_append);
668 * Get the comment on a capture from the SHB data block
669 * XXX - should support multiple sections.
671 * @param cf the capture file
673 const gchar* cf_read_section_comment(capture_file *cf);
676 * Update(replace) the comment on a capture from the SHB data block
677 * XXX - should support multiple sections.
679 * @param cf the capture file
680 * @param comment the string replacing the old comment
682 void cf_update_section_comment(capture_file *cf, gchar *comment);
685 * Get the comment on a packet (record).
686 * If the comment has been edited, it returns the result of the edit,
687 * otherwise it returns the comment from the file.
689 * @param cf the capture file
690 * @param fd the frame_data structure for the frame
692 char *cf_get_packet_comment(capture_file *cf, const frame_data *fd);
695 * Update(replace) the comment on a capture from a frame
697 * @param cf the capture file
698 * @param fd the frame_data structure for the frame
699 * @param new_comment the string replacing the old comment
701 gboolean cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment);
704 * What types of comments does this file have?
706 * @param cf the capture file
707 * @return bitset of WTAP_COMMENT_ values
709 guint32 cf_comment_types(capture_file *cf);
712 * Add a resolved address to this file's list of resolved addresses.
714 * @param cf the capture file
715 * @param addr a string representing an IPv4 or IPv6 address
716 * @param name a string containing a name corresponding to that address
717 * @return TRUE if it succeeds, FALSE if not
719 gboolean cf_add_ip_name_from_string(capture_file *cf, const char *addr, const char *name);
723 #endif /* __cplusplus */
728 * Editor modelines - http://www.wireshark.org/tools/modelines.html
733 * indent-tabs-mode: nil
736 * vi: set shiftwidth=4 tabstop=8 expandtab:
737 * :indentSize=4:tabSize=8:noTabs=true: