2 * Packet range routines (save, print, ...)
6 * Dick Gooris <gooris@lucent.com>
7 * Ulf Lamping <ulf.lamping@web.de>
9 * Wireshark - Network traffic analyzer
10 * By Gerald Combs <gerald@wireshark.org>
11 * Copyright 1998 Gerald Combs
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
38 #include <epan/frame_data.h>
42 #include "packet-range.h"
44 /* (re-)calculate the packet counts (except the user specified range) */
45 static void packet_range_calc(packet_range_t *range) {
46 guint32 current_count;
49 guint32 displayed_mark_low;
50 guint32 displayed_mark_high;
54 range->selected_packet = 0L;
58 range->mark_range_cnt = 0L;
60 displayed_mark_low = 0L;
61 displayed_mark_high = 0L;
62 range->displayed_cnt = 0L;
63 range->displayed_marked_cnt = 0L;
64 range->displayed_mark_range_cnt=0L;
66 /* The next for-loop is used to obtain the amount of packets to be processed
67 * and is used to present the information in the Save/Print As widget.
68 * We have different types of ranges: All the packets, the number
69 * of packets of a marked range, a single packet, and a user specified
70 * packet range. The last one is not calculated here since this
71 * data must be entered in the widget by the user.
75 for(packet = cfile.plist_start; packet != NULL; packet = packet->next) {
77 if (cfile.current_frame == packet) {
78 range->selected_packet = current_count;
80 if (packet->flags.passed_dfilter) {
81 range->displayed_cnt++;
83 if (packet->flags.marked) {
84 if (packet->flags.passed_dfilter) {
85 range->displayed_marked_cnt++;
86 if (displayed_mark_low == 0) {
87 displayed_mark_low = current_count;
89 if (current_count > displayed_mark_high) {
90 displayed_mark_high = current_count;
95 mark_low = current_count;
97 if (current_count > mark_high) {
98 mark_high = current_count;
104 for(packet = cfile.plist_start; packet != NULL; packet = packet->next) {
107 if (current_count >= mark_low &&
108 current_count <= mark_high)
110 range->mark_range_cnt++;
113 if (current_count >= displayed_mark_low &&
114 current_count <= displayed_mark_high)
116 if (packet->flags.passed_dfilter) {
117 range->displayed_mark_range_cnt++;
122 /* in case we marked just one packet, we add 1. */
123 /*if (cfile.marked_count != 0) {
124 range->mark_range = mark_high - mark_low + 1;
127 /* in case we marked just one packet, we add 1. */
128 /*if (range->displayed_marked_cnt != 0) {
129 range->displayed_mark_range = displayed_mark_high - displayed_mark_low + 1;
134 /* (re-)calculate the user specified packet range counts */
135 static void packet_range_calc_user(packet_range_t *range) {
136 guint32 current_count;
139 range->user_range_cnt = 0L;
140 range->displayed_user_range_cnt = 0L;
143 for(packet = cfile.plist_start; packet != NULL; packet = packet->next) {
146 if (value_is_in_range(range->user_range, current_count)) {
147 range->user_range_cnt++;
148 if (packet->flags.passed_dfilter) {
149 range->displayed_user_range_cnt++;
156 /* init the range struct */
157 void packet_range_init(packet_range_t *range) {
159 range->process = range_process_all;
160 range->process_filtered = FALSE;
161 range->user_range = range_empty();
163 /* calculate all packet range counters */
164 packet_range_calc(range);
165 packet_range_calc_user(range);
168 /* check whether the packet range is OK */
169 convert_ret_t packet_range_check(packet_range_t *range) {
170 if (range->process == range_process_user_range && range->user_range == NULL) {
171 /* Not valid - return the error. */
172 return range->user_range_status;
177 /* init the processing run */
178 void packet_range_process_init(packet_range_t *range) {
179 /* Check that, if an explicit range was selected, it's valid. */
180 /* "enumeration" values */
181 range->marked_range_active = FALSE;
182 range->selected_done = FALSE;
184 if (range->process_filtered == FALSE) {
185 range->marked_range_left = range->mark_range_cnt;
187 range->marked_range_left = range->displayed_mark_range_cnt;
191 /* do we have to process all packets? */
192 gboolean packet_range_process_all(packet_range_t *range) {
193 return range->process == range_process_all && !range->process_filtered;
196 /* do we have to process this packet? */
197 range_process_e packet_range_process_packet(packet_range_t *range, frame_data *fdata) {
199 switch(range->process) {
200 case(range_process_all):
202 case(range_process_selected):
203 if (range->selected_done) {
204 return range_processing_finished;
206 if (fdata->num != cfile.current_frame->num) {
207 return range_process_next;
209 range->selected_done = TRUE;
211 case(range_process_marked):
212 if (fdata->flags.marked == FALSE) {
213 return range_process_next;
216 case(range_process_marked_range):
217 if (range->marked_range_left == 0) {
218 return range_processing_finished;
220 if (fdata->flags.marked == TRUE) {
221 range->marked_range_active = TRUE;
223 if (range->marked_range_active == FALSE ) {
224 return range_process_next;
226 if (!range->process_filtered ||
227 (range->process_filtered && fdata->flags.passed_dfilter == TRUE))
229 range->marked_range_left--;
232 case(range_process_user_range):
233 if (value_is_in_range(range->user_range, fdata->num) == FALSE) {
234 return range_process_next;
238 g_assert_not_reached();
241 /* this packet has to pass the display filter but didn't? -> try next */
242 if (range->process_filtered && fdata->flags.passed_dfilter == FALSE) {
243 return range_process_next;
246 /* We fell through the conditions above, so we accept this packet */
247 return range_process_this;
251 /******************** Range Entry Parser *********************************/
253 /* Converts a range string to a user range.
254 * The parameter 'es' points to the string to be converted, and is defined in
255 * the Save/Print-As widget.
258 void packet_range_convert_str(packet_range_t *range, const gchar *es)
263 if (range->user_range != NULL)
264 g_free(range->user_range);
265 ret = range_convert_str(&new_range, es, cfile.count);
266 if (ret != CVT_NO_ERROR) {
267 /* range isn't valid */
268 range->user_range = NULL;
269 range->user_range_status = ret;
270 range->user_range_cnt = 0L;
271 range->displayed_user_range_cnt = 0L;
274 range->user_range = new_range;
276 /* calculate new user specified packet range counts */
277 packet_range_calc_user(range);
278 } /* packet_range_convert_str */