diff options
author | Guy Harris <guy@alum.mit.edu> | 2004-09-04 20:02:11 +0000 |
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committer | Guy Harris <guy@alum.mit.edu> | 2004-09-04 20:02:11 +0000 |
commit | f06c1b5fb05b5085cdcfbf7285ff58690cd1e88b (patch) | |
tree | 2c274f184e59a5071acbaa7fd440f60b2d663aa3 /packet-range.c | |
parent | 0912b731c3a2db9cef542670ff8eef69297e532e (diff) |
The packet range stuff knows about capture_file structures, so it's
really more of an Ethereal/Tethereal component than a libethereal
component (nothing else in libethereal knows about capture files); move
it back out of libethereal. (The range stuff doesn't; we leave it in
libethereal.)
svn path=/trunk/; revision=11898
Diffstat (limited to 'packet-range.c')
-rw-r--r-- | packet-range.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/packet-range.c b/packet-range.c new file mode 100644 index 0000000000..10a2529d72 --- /dev/null +++ b/packet-range.c @@ -0,0 +1,253 @@ +/* packet-range.c + * Packet range routines (save, print, ...) + * + * $Id$ + * + * Dick Gooris <gooris@lucent.com> + * Ulf Lamping <ulf.lamping@web.de> + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> +#include <ctype.h> + +#include <glib.h> + +#include <epan/frame_data.h> + +#include "globals.h" + +#include "packet-range.h" + +/* (re-)calculate the packet counts (except the user specified range) */ +void packet_range_calc(packet_range_t *range) { + guint32 current_count; + guint32 mark_low; + guint32 mark_high; + guint32 displayed_mark_low; + guint32 displayed_mark_high; + frame_data *packet; + + + range->selected_packet = 0L; + + mark_low = 0L; + mark_high = 0L; + range->mark_range_cnt = 0L; + + displayed_mark_low = 0L; + displayed_mark_high = 0L; + range->displayed_cnt = 0L; + range->displayed_marked_cnt = 0L; + range->displayed_mark_range_cnt=0L; + + /* The next for-loop is used to obtain the amount of packets to be processed + * and is used to present the information in the Save/Print As widget. + * We have different types of ranges: All the packets, the number + * of packets of a marked range, a single packet, and a user specified + * packet range. The last one is not calculated here since this + * data must be entered in the widget by the user. + */ + + current_count = 0; + for(packet = cfile.plist; packet != NULL; packet = packet->next) { + current_count++; + if (cfile.current_frame == packet) { + range->selected_packet = current_count; + } + if (packet->flags.passed_dfilter) { + range->displayed_cnt++; + } + if (packet->flags.marked) { + if (packet->flags.passed_dfilter) { + range->displayed_marked_cnt++; + if (displayed_mark_low == 0) { + displayed_mark_low = current_count; + } + if (current_count > displayed_mark_high) { + displayed_mark_high = current_count; + } + } + + if (mark_low == 0) { + mark_low = current_count; + } + if (current_count > mark_high) { + mark_high = current_count; + } + } + } + + current_count = 0; + for(packet = cfile.plist; packet != NULL; packet = packet->next) { + current_count++; + + if (current_count >= mark_low && + current_count <= mark_high) + { + range->mark_range_cnt++; + } + + if (current_count >= displayed_mark_low && + current_count <= displayed_mark_high) + { + if (packet->flags.passed_dfilter) { + range->displayed_mark_range_cnt++; + } + } + } + + /* in case we marked just one packet, we add 1. */ + /*if (cfile.marked_count != 0) { + range->mark_range = mark_high - mark_low + 1; + }*/ + + /* in case we marked just one packet, we add 1. */ + /*if (range->displayed_marked_cnt != 0) { + range->displayed_mark_range = displayed_mark_high - displayed_mark_low + 1; + }*/ +} + + +/* (re-)calculate the user specified packet range counts */ +void packet_range_calc_user(packet_range_t *range) { + guint32 current_count; + frame_data *packet; + + range->user_range_cnt = 0L; + range->displayed_user_range_cnt = 0L; + + current_count = 0; + for(packet = cfile.plist; packet != NULL; packet = packet->next) { + current_count++; + + if (value_is_in_range(&range->user_range, current_count)) { + range->user_range_cnt++; + if (packet->flags.passed_dfilter) { + range->displayed_user_range_cnt++; + } + } + } +} + + +/* init the range struct */ +void packet_range_init(packet_range_t *range) { + + range->process = range_process_all; + range->process_filtered = FALSE; + range_init(&range->user_range); + + /* calculate all packet range counters */ + packet_range_calc(range); + packet_range_calc_user(range); +} + +/* init the processing run */ +void packet_range_process_init(packet_range_t *range) { + /* "enumeration" values */ + range->marked_range_active = FALSE; + range->selected_done = FALSE; + + if (range->process_filtered == FALSE) { + range->marked_range_left = range->mark_range_cnt; + } else { + range->marked_range_left = range->displayed_mark_range_cnt; + } +} + +/* do we have to process all packets? */ +gboolean packet_range_process_all(packet_range_t *range) { + return range->process == range_process_all && !range->process_filtered; +} + +/* do we have to process this packet? */ +range_process_e packet_range_process_packet(packet_range_t *range, frame_data *fdata) { + + switch(range->process) { + case(range_process_all): + break; + case(range_process_selected): + if (range->selected_done) { + return range_processing_finished; + } + if (fdata->num != cfile.current_frame->num) { + return range_process_next; + } + range->selected_done = TRUE; + break; + case(range_process_marked): + if (fdata->flags.marked == FALSE) { + return range_process_next; + } + break; + case(range_process_marked_range): + if (range->marked_range_left == 0) { + return range_processing_finished; + } + if (fdata->flags.marked == TRUE) { + range->marked_range_active = TRUE; + } + if (range->marked_range_active == FALSE ) { + return range_process_next; + } + if (!range->process_filtered || + (range->process_filtered && fdata->flags.passed_dfilter == TRUE)) + { + range->marked_range_left--; + } + break; + case(range_process_user_range): + if (value_is_in_range(&range->user_range, fdata->num) == FALSE) { + return range_process_next; + } + break; + default: + g_assert_not_reached(); + } + + /* this packet has to pass the display filter but didn't? -> try next */ + if (range->process_filtered && fdata->flags.passed_dfilter == FALSE) { + return range_process_next; + } + + /* We fell through the conditions above, so we accept this packet */ + return range_process_this; +} + + +/******************** Range Entry Parser *********************************/ + +/* Converts a range string to a user range. + * The parameter 'es' points to the string to be converted, and is defined in + * the Save/Print-As widget. + */ + +void packet_range_convert_str(packet_range_t *range, const gchar *es) +{ + range_convert_str(&range->user_range, es, cfile.count); + + /* calculate new user specified packet range counts */ + packet_range_calc_user(range); +} /* packet_range_convert_str */ |