source: test/test-vxlan.c

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivelibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file was 3fc3267, checked in by Shane Alcock <salcock@…>, 6 years ago

Add protocol decoder functions for GRE and VXLAN

Many thanks to Perry Lorier for providing this patch.

Includes a test-case for VXLAN parsing.

  • Property mode set to 100644
File size: 3.6 KB
Line 
1/*
2 * This file is part of libtrace
3 *
4 * Copyright (c) 2015 The University of Waikato, Hamilton, New Zealand.
5 * Authors: Daniel Lawson
6 *          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 * $Id: test-rtclient.c,v 1.2 2006/02/27 03:41:12 perry Exp $
28 *
29 */
30#ifndef WIN32
31#  include <sys/time.h>
32#  include <netinet/in.h>
33#  include <netinet/in_systm.h>
34#  include <netinet/tcp.h>
35#  include <netinet/ip.h>
36#  include <netinet/ip_icmp.h>
37#  include <arpa/inet.h>
38#  include <sys/socket.h>
39#endif
40#include <stdio.h>
41#include <stdlib.h>
42#include <assert.h>
43#include <string.h>
44#include <sys/types.h>
45#include <time.h>
46#include <string.h>
47
48#include "dagformat.h"
49#include "libtrace.h"
50#include "libpacketdump.h"
51
52void iferr(libtrace_t *trace)
53{
54        libtrace_err_t err = trace_get_err(trace);
55        if (err.err_num==0)
56                return;
57        printf("Error: %s\n",err.problem);
58        exit(1);
59}
60
61int main(int argc, char *argv[]) {
62    int psize = 0;
63    int error = 0;
64    int ip_count = 0;
65    int arp_count = 0;
66    libtrace_t *trace;
67    libtrace_packet_t *packet;
68
69    (void)argc;
70    (void)argv;
71
72    trace = trace_create("pcapfile:traces/vxlan.pcap");
73    iferr(trace);
74
75    trace_start(trace);
76    iferr(trace);
77
78    packet=trace_create_packet();
79    for (;;) {
80        uint8_t proto;
81        uint32_t remaining;
82        void *transport;
83        void *layer2;
84        void *vxlan;
85
86        if ((psize = trace_read_packet(trace, packet)) < 0) {
87            error = 1;
88            iferr(trace);
89            break;
90        }
91        if (psize == 0) {
92            break;
93        }
94
95        transport = trace_get_transport(packet, &proto, &remaining);
96        if (proto != TRACE_IPPROTO_UDP) {
97            printf("Failed to find a UDP header\n");
98            error = 1;
99            continue;
100        }
101
102        vxlan = trace_get_vxlan_from_udp(transport, &remaining);
103        if (!vxlan) {
104            printf("Failed to find a VXLAN header\n");
105            error = 1;
106            continue;
107        }
108
109        layer2 = trace_get_payload_from_vxlan(vxlan, &remaining);
110
111        switch (ntohs(((libtrace_ether_t *)layer2)->ether_type)) {
112            case 0x0800:
113                ip_count++;
114                break;
115            case 0x0806:
116                arp_count++;
117                break;
118            default:
119                fprintf(stderr, "Unexpected vxlan ethertype: %08x\n",
120                        ntohs(((libtrace_ether_t *)layer2)->ether_type));
121                error = 1;
122                continue;
123        }
124    }
125    trace_destroy_packet(packet);
126    if (ip_count != 8 || arp_count != 2) {
127        fprintf(stderr, "Incorrect number of ip/arp packets\n");
128        error = 1;
129    }
130    if (error == 0) {
131        printf("success\n");
132    } else {
133        iferr(trace);
134    }
135    trace_destroy(trace);
136    return error;
137}
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