diff options
Diffstat (limited to 'src/lib/util/test_tun.c')
-rw-r--r-- | src/lib/util/test_tun.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/lib/util/test_tun.c b/src/lib/util/test_tun.c new file mode 100644 index 000000000..1086ef3ca --- /dev/null +++ b/src/lib/util/test_tun.c | |||
@@ -0,0 +1,77 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2010, 2011, 2012 Christian Grothoff | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file tun/test_tun.c | ||
23 | * @brief test for tun.c | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | |||
27 | #include "platform.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | |||
30 | static int ret; | ||
31 | |||
32 | static void | ||
33 | test_udp (size_t pll, | ||
34 | int pl_fill, | ||
35 | uint16_t crc) | ||
36 | { | ||
37 | struct GNUNET_TUN_IPv4Header ip; | ||
38 | struct GNUNET_TUN_UdpHeader udp; | ||
39 | char payload[pll]; | ||
40 | struct in_addr src; | ||
41 | struct in_addr dst; | ||
42 | |||
43 | GNUNET_assert (1 == inet_pton (AF_INET, "1.2.3.4", &src)); | ||
44 | GNUNET_assert (1 == inet_pton (AF_INET, "122.2.3.5", &dst)); | ||
45 | memset (payload, pl_fill, sizeof(payload)); | ||
46 | GNUNET_TUN_initialize_ipv4_header (&ip, | ||
47 | IPPROTO_UDP, | ||
48 | pll + sizeof(udp), | ||
49 | &src, | ||
50 | &dst); | ||
51 | udp.source_port = htons (4242); | ||
52 | udp.destination_port = htons (4242); | ||
53 | udp.len = htons (pll); | ||
54 | GNUNET_TUN_calculate_udp4_checksum (&ip, | ||
55 | &udp, | ||
56 | payload, | ||
57 | pll); | ||
58 | if (crc != ntohs (udp.crc)) | ||
59 | { | ||
60 | fprintf (stderr, "Got CRC: %u, wanted: %u\n", | ||
61 | ntohs (udp.crc), | ||
62 | crc); | ||
63 | ret = 1; | ||
64 | } | ||
65 | } | ||
66 | |||
67 | |||
68 | int | ||
69 | main (int argc, | ||
70 | char **argv) | ||
71 | { | ||
72 | test_udp (4, 3, 22439); | ||
73 | test_udp (4, 1, 23467); | ||
74 | test_udp (7, 17, 6516); | ||
75 | test_udp (12451, 251, 42771); | ||
76 | return ret; | ||
77 | } | ||