2 * Definitions for file structures and routines
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
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>
37 /** Return values from functions that read capture files. */
39 CF_OK, /**< operation succeeded */
40 CF_ERROR, /**< operation got an error (function may provide err with details) */
41 CF_ABORTED /**< operation aborted by user */
44 /** Return values from functions that print sets of packets. */
46 CF_PRINT_OK, /**< operation succeeded */
47 CF_PRINT_OPEN_ERROR, /**< print operation failed while opening printer */
48 CF_PRINT_WRITE_ERROR /**< print operation failed while writing to the printer */
52 * Open a capture file.
54 * @param cf the capture file to be opened
55 * @param fname the filename to be opened
56 * @param is_tempfile is this a temporary file?
57 * @return TRUE on success, FALSE on failure
59 gboolean cf_open(capture_file *cf, char *fname, gboolean is_tempfile, int *err);
62 * Close a capture file.
64 * @param cf the capture file to be closed
66 void cf_close(capture_file *cf);
69 * Reload a capture file.
71 * @param cf the capture file to be reloaded
73 void cf_reload(capture_file *cf);
76 * Read all packets of a capture file into the internal structures.
78 * @param cf the capture file to be read
79 * @return one of cf_read_status_t
81 cf_read_status_t cf_read(capture_file *cf);
84 * Start reading from the end of a capture file.
85 * This is used in "Update list of packets in Real-Time".
87 * @param cf the capture file to be read from
88 * @param fname the filename to be read from
89 * @param is_tempfile is this a temporary file?
90 * @param err the error code, if an error had occured
91 * @return TRUE on success, FALSE on failure
93 gboolean cf_start_tail(capture_file *cf, char *fname, gboolean is_tempfile, int *err);
96 * Read packets from the "end" of a capture file.
98 * @param cf the capture file to be read from
99 * @param to_read the number of packets to read
100 * @param err the error code, if an error had occured
101 * @return one of cf_read_status_t
103 cf_read_status_t cf_continue_tail(capture_file *cf, int to_read, int *err);
106 * Finish reading from "end" of a capture file.
108 * @param cf the capture file to be read from
109 * @param err the error code, if an error had occured
110 * @return one of cf_read_status_t
112 cf_read_status_t cf_finish_tail(capture_file *cf, int *err);
115 * Save a capture file (or a range of it).
117 * @param cf the capture file to save to
118 * @param fname the filename to save to
119 * @param range the range of packets to save
120 * @param save_format the format of the file to save (libpcap, ...)
121 * @return TRUE on success, FALSE on failure
123 gboolean cf_save(capture_file * cf, char *fname, packet_range_t *range, guint save_format);
126 * Get a displayable name of the capture file.
128 * @param cf the capture file
129 * @return the displayable name (don't have to be g_free'd)
131 const gchar *cf_get_display_name(capture_file *cf);
134 * Get the number of packets in the capture file.
136 * @param cf the capture file
137 * @return the number of packets in the capture file
139 int cf_packet_count(capture_file *cf);
142 * Is this capture file a temporary file?
144 * @param cf the capture file
145 * @return TRUE if it's a temporary file, FALSE otherwise
147 gboolean cf_is_tempfile(capture_file *cf);
150 * Get the interface name to capture from.
152 * @param cf the capture file
153 * @return the interface name (don't have to be g_free'd)
155 gchar *cf_get_iface(capture_file *cf);
158 * Get the capture filter of this capture file.
160 * @param cf the capture file
161 * @return the capture filter (don't have to be g_free'd)
163 gchar *cf_get_cfilter(capture_file *cf);
166 * Set flag, if the number of packet drops while capturing are known or not.
168 * @param cf the capture file
169 * @param drops_known TRUE if the number of packet drops are known, FALSE otherwise
171 void cf_set_drops_known(capture_file *cf, gboolean drops_known);
174 * Set the number of packet drops while capturing.
176 * @param cf the capture file
177 * @param drops the number of packet drops occured while capturing
179 void cf_set_drops(capture_file *cf, guint32 drops);
182 * Set the read filter.
183 * @todo this shouldn't be required, remove it somehow
185 * @param cf the capture file
186 * @param rfcode the readfilter
188 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode);
191 * "Display Filter" packets in the capture file.
193 * @param cf the capture file
194 * @param dfilter the display filter
195 * @param force TRUE if do in any case, FALSE only if dfilter changed
196 * @return TRUE on success, FALSE on failure
198 gboolean cf_filter_packets(capture_file *cf, gchar *dfilter, gboolean force);
201 * At least one "Refence Time" flag has changed, rescan all packets.
203 * @param cf the capture file
205 void cf_reftime_packets(capture_file *cf);
208 * At least one "Refence Time" flag has changed, rescan all packets.
210 * @param cf the capture file
212 void cf_colorize_packets(capture_file *cf);
215 * "Something" has changed, rescan all packets.
217 * @param cf the capture file
219 void cf_redissect_packets(capture_file *cf);
222 * Rescan all packets and just run taps - don't reconstruct the display.
224 * @param cf the capture file
225 * @return TRUE on success, FALSE on failure
227 gboolean cf_retap_packets(capture_file *cf);
230 * The time format has changed, rescan all packets.
232 * @param cf the capture file
234 void cf_change_time_formats(capture_file *cf);
237 * Print the capture file.
239 * @param cf the capture file
240 * @param print_args the arguments what and how to print
241 * @return one of cf_print_status_t
243 cf_print_status_t cf_print_packets(capture_file *cf, print_args_t *print_args);
246 * Print (export) the capture file into PDML format.
248 * @param cf the capture file
249 * @param print_args the arguments what and how to export
250 * @return one of cf_print_status_t
252 cf_print_status_t cf_write_pdml_packets(capture_file *cf, print_args_t *print_args);
255 * Print (export) the capture file into PSML format.
257 * @param cf the capture file
258 * @param print_args the arguments what and how to export
259 * @return one of cf_print_status_t
261 cf_print_status_t cf_write_psml_packets(capture_file *cf, print_args_t *print_args);
264 * Find Packet in protocol tree.
266 * @param cf the capture file
267 * @param string the string to find
268 * @return TRUE if a packet was found, FALSE otherwise
270 gboolean cf_find_packet_protocol_tree(capture_file *cf, const char *string);
273 * Find Packet in summary line.
275 * @param cf the capture file
276 * @param string the string to find
277 * @return TRUE if a packet was found, FALSE otherwise
279 gboolean cf_find_packet_summary_line(capture_file *cf, const char *string);
282 * Find Packet in packet data.
284 * @param cf the capture file
285 * @param string the string to find
286 * @param string_size the size of the string to find
287 * @return TRUE if a packet was found, FALSE otherwise
289 gboolean cf_find_packet_data(capture_file *cf, const guint8 *string,
293 * Find Packet by display filter.
295 * @param cf the capture file
296 * @param sfcode the display filter to find a packet for
297 * @return TRUE if a packet was found, FALSE otherwise
299 gboolean cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode);
302 * GoTo Packet in first row.
304 * @param cf the capture file
305 * @return TRUE if the first row exists, FALSE otherwise
307 gboolean cf_goto_top_frame(capture_file *cf);
310 * GoTo Packet in last row.
312 * @param cf the capture file
313 * @return TRUE if last row exists, FALSE otherwise
315 gboolean cf_goto_bottom_frame(capture_file *cf);
318 * GoTo Packet with the given row.
320 * @param cf the capture file
321 * @param row the row to go to
322 * @return TRUE if this row exists, FALSE otherwise
324 gboolean cf_goto_frame(capture_file *cf, guint row);
327 * Go to frame specified by currently selected protocol tree field.
328 * (Go To Corresponding Packet)
329 * @todo this is ugly and should be improved!
331 * @param cf the capture file
332 * @return TRUE if this packet exists, FALSE otherwise
334 gboolean cf_goto_framenum(capture_file *cf);
337 * Select the packet in the given row.
339 * @param cf the capture file
340 * @param row the row to select
342 void cf_select_packet(capture_file *cf, int row);
345 * Unselect all packets, if any.
347 * @param cf the capture file
348 * @param row the row to select
350 void cf_unselect_packet(capture_file *cf);
353 * Unselect all protocol tree fields, if any.
355 * @param cf the capture file
356 * @param row the row to select
358 void cf_unselect_field(capture_file *cf);
361 * Mark a particular frame in a particular capture.
363 * @param cf the capture file
364 * @param frame the frame to be marked
366 void cf_mark_frame(capture_file *cf, frame_data *frame);
369 * Unmark a particular frame in a particular capture.
371 * @param cf the capture file
372 * @param frame the frame to be unmarked
374 void cf_unmark_frame(capture_file *cf, frame_data *frame);
377 * Convert error number and info to a complete message.
379 * @param err the error number
380 * @param err_info the additional info about this error (e.g. filename)
381 * @return statically allocated error message
383 char *cf_read_error_message(int err, gchar *err_info);
386 * Merge two (or more) capture files into one.
387 * @todo is this the right place for this function? It doesn't have to do a lot with capture_file.
389 * @param out_filename output filename
390 * @param out_fd output file descriptor
391 * @param in_file_count the number of input files to merge
392 * @param in_filnames array of input filenames
393 * @param file_type the output filetype
394 * @param do_append FALSE to merge chronologically, TRUE simply append
395 * @return TRUE if merging suceeded, FALSE otherwise
398 cf_merge_files(const char *out_filename, int out_fd, int in_file_count,
399 char *const *in_filenames, int file_type, gboolean do_append);