2001-04-01 04:11:51 +00:00
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/* frame_data.c
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* Routines for packet disassembly
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*
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2004-07-18 00:24:25 +00:00
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* $Id$
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2001-04-01 04:11:51 +00:00
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*
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2006-05-21 05:12:17 +00:00
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* Wireshark - Network traffic analyzer
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2008-01-08 22:54:51 +00:00
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* By Gerald Combs <gerald@wireshark.org>
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2001-04-01 04:11:51 +00:00
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* Copyright 1998 Gerald Combs
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*
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2002-08-28 20:41:00 +00:00
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*
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2001-04-01 04:11:51 +00:00
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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2002-08-28 20:41:00 +00:00
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*
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2001-04-01 04:11:51 +00:00
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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2002-08-28 20:41:00 +00:00
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*
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2001-04-01 04:11:51 +00:00
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "frame_data.h"
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#include "packet.h"
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2005-08-13 06:21:37 +00:00
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#include "emem.h"
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2009-07-22 08:09:22 +00:00
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#include "timestamp.h"
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2001-04-01 04:11:51 +00:00
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#include <glib.h>
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/* Protocol-specific data attached to a frame_data structure - protocol
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index and opaque pointer. */
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typedef struct _frame_proto_data {
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int proto;
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void *proto_data;
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} frame_proto_data;
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/* XXX - I declared this static, because it only seems to be used by
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* p_get_proto_data and p_add_proto_data
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*/
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static gint p_compare(gconstpointer a, gconstpointer b)
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{
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2002-11-27 22:44:41 +00:00
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const frame_proto_data *ap = (const frame_proto_data *)a;
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const frame_proto_data *bp = (const frame_proto_data *)b;
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2001-04-01 04:11:51 +00:00
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2002-11-27 22:44:41 +00:00
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if (ap -> proto > bp -> proto)
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2001-04-01 04:11:51 +00:00
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return 1;
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2002-11-27 22:44:41 +00:00
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else if (ap -> proto == bp -> proto)
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2001-04-01 04:11:51 +00:00
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return 0;
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else
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return -1;
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}
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void
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p_add_proto_data(frame_data *fd, int proto, void *proto_data)
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{
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2005-08-13 06:21:37 +00:00
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frame_proto_data *p1 = se_alloc(sizeof(frame_proto_data));
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2002-08-28 20:41:00 +00:00
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2001-04-01 04:11:51 +00:00
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g_assert(p1 != NULL);
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p1 -> proto = proto;
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p1 -> proto_data = proto_data;
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/* Add it to the GSLIST */
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fd -> pfd = g_slist_insert_sorted(fd -> pfd,
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(gpointer *)p1,
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p_compare);
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}
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void *
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p_get_proto_data(frame_data *fd, int proto)
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{
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frame_proto_data temp, *p1;
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GSList *item;
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temp.proto = proto;
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temp.proto_data = NULL;
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item = g_slist_find_custom(fd->pfd, (gpointer *)&temp, p_compare);
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if (item) {
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p1 = (frame_proto_data *)item->data;
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return p1->proto_data;
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}
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return NULL;
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}
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void
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2006-01-24 19:03:09 +00:00
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p_remove_proto_data(frame_data *fd, int proto)
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2001-04-01 04:11:51 +00:00
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{
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frame_proto_data temp;
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GSList *item;
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temp.proto = proto;
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temp.proto_data = NULL;
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item = g_slist_find_custom(fd->pfd, (gpointer *)&temp, p_compare);
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if (item) {
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2003-07-08 05:29:42 +00:00
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fd->pfd = g_slist_remove(fd->pfd, item->data);
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2001-04-01 04:11:51 +00:00
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}
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}
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2009-07-22 08:09:22 +00:00
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#define COMPARE_FRAME_NUM() ((fdata1->num < fdata2->num) ? -1 : \
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(fdata1->num > fdata2->num) ? 1 : \
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0)
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#define COMPARE_NUM(f) ((fdata1->f < fdata2->f) ? -1 : \
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(fdata1->f > fdata2->f) ? 1 : \
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COMPARE_FRAME_NUM())
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/* Compare time stamps.
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A packet whose time is a reference time is considered to have
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a lower time stamp than any frame with a non-reference time;
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if both packets' times are reference times, we compare the
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times of the packets. */
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#define COMPARE_TS(ts) \
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((fdata1->flags.ref_time && !fdata2->flags.ref_time) ? -1 : \
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(!fdata1->flags.ref_time && fdata2->flags.ref_time) ? 1 : \
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(fdata1->ts.secs < fdata2->ts.secs) ? -1 : \
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(fdata1->ts.secs > fdata2->ts.secs) ? 1 : \
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(fdata1->ts.nsecs < fdata2->ts.nsecs) ? -1 :\
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(fdata1->ts.nsecs > fdata2->ts.nsecs) ? 1 : \
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COMPARE_FRAME_NUM())
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gint
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frame_data_compare(const frame_data *fdata1, const frame_data *fdata2, int field)
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{
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switch (field) {
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case COL_NUMBER:
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return COMPARE_FRAME_NUM();
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case COL_CLS_TIME:
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switch (timestamp_get_type()) {
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case TS_ABSOLUTE:
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case TS_ABSOLUTE_WITH_DATE:
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case TS_EPOCH:
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return COMPARE_TS(abs_ts);
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case TS_RELATIVE:
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return COMPARE_TS(rel_ts);
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case TS_DELTA:
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return COMPARE_TS(del_cap_ts);
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case TS_DELTA_DIS:
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return COMPARE_TS(del_dis_ts);
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case TS_NOT_SET:
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return 0;
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}
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return 0;
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case COL_ABS_TIME:
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case COL_ABS_DATE_TIME:
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return COMPARE_TS(abs_ts);
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case COL_REL_TIME:
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return COMPARE_TS(rel_ts);
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case COL_DELTA_TIME:
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return COMPARE_TS(del_cap_ts);
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case COL_DELTA_TIME_DIS:
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return COMPARE_TS(del_dis_ts);
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case COL_PACKET_LENGTH:
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return COMPARE_NUM(pkt_len);
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case COL_CUMULATIVE_BYTES:
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return COMPARE_NUM(cum_bytes);
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}
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g_return_val_if_reached(0);
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}
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