source: lib/protocols_application.c @ db84bb2

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivendag_formatrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since db84bb2 was ee6e802, checked in by Shane Alcock <salcock@…>, 5 years ago

Updated copyright blurb on all source files

In some cases, this meant adding copyright blurbs to files that
had never had them before.

  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 *
3 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
4 * All rights reserved.
5 *
6 * This file is part of libtrace.
7 *
8 * This code has been developed by the University of Waikato WAND
9 * research group. For further information please see http://www.wand.net.nz/
10 *
11 * libtrace is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * libtrace is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 *
24 *
25 */
26
27#include <stdlib.h>
28#include "libtrace.h"
29
30void *trace_get_payload_from_vxlan(libtrace_vxlan_t *vxlan, uint32_t *remaining)
31{
32    if (remaining) {
33        if (*remaining < sizeof(*vxlan)) {
34            *remaining = 0;
35            return NULL;
36        }
37
38        *remaining -= sizeof(*vxlan);
39    }
40
41    return (void*)((char *)vxlan + sizeof(*vxlan));
42}
43
44
45libtrace_vxlan_t *trace_get_vxlan_from_udp(libtrace_udp_t *udp,
46        uint32_t *remaining)
47{
48    if (udp->dest != htons(4789)) { /* UDP port number for vxlan */
49        return NULL; /* Not a vxlan packet. */
50    }
51
52    return trace_get_payload_from_udp(udp, remaining);
53}
54
55
56
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