source: lib/protocols_application.c @ 756b8f9

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivelibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 756b8f9 was d8b05b7, checked in by Shane Alcock <salcock@…>, 6 years ago

Make sure our copyright covers recent years

Consistency across all of our source files is also nice.

  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 * This file is part of libtrace
3 *
4 * Copyright (c) 2007-2015 The University of Waikato, Hamilton, New Zealand.
5 *
6 * Authors: Perry Lorier
7 *
8 * All rights reserved.
9 *
10 * This code has been developed by the University of Waikato WAND
11 * research group. For further information please see http://www.wand.net.nz/
12 *
13 * libtrace is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * libtrace 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.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with libtrace; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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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