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129 lines
4.5 KiB
C
129 lines
4.5 KiB
C
/*
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* Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @{
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*
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* @file
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*/
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#include <errno.h>
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#include <stdlib.h>
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#include "embUnit.h"
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#include "net/ng_inet_csum.h"
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#include "unittests-constants.h"
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#include "tests-inet_csum.h"
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static void test_inet_csum__rfc_example(void)
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{
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/* source: https://tools.ietf.org/html/rfc1071#section-3 */
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uint8_t data[] = {
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0x00, 0x01, 0xf2, 0x03, 0xf4, 0xf5, 0xf6, 0xf7
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};
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TEST_ASSERT_EQUAL_INT(0xddf2, ng_inet_csum(0, data, sizeof(data)));
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}
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static void test_inet_csum__ipv6_pseudo_hdr(void)
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{
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/* source: https://www.cloudshark.org/captures/ea72fbab241b (No. 56) */
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uint8_t data[] = {
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0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* IPv6 source */
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0x5a, 0x6d, 0x8f, 0xff, 0xfe, 0x56, 0x30, 0x09,
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0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* IPv6 destination */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x3a, /* payload length + next header */
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0x86, 0x00, 0xab, 0x32, 0x40, 0x58, 0x07, 0x08, /* ICMPv6 payload */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00,
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0x20, 0x02, 0x18, 0x3d, 0xdb, 0xa4, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x01, 0x58, 0x6d, 0x8f, 0x56, 0x30, 0x09
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};
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/* result unnormalized: take 1's-complement of 0 */
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TEST_ASSERT_EQUAL_INT(0xffff, ng_inet_csum(0x0, data, sizeof(data)));
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}
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static void test_inet_csum__set_initial_sum(void)
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{
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/* source: https://www.cloudshark.org/captures/ea72fbab241b (No. 56) */
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uint8_t data[] = {
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0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* IPv6 source */
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0x5a, 0x6d, 0x8f, 0xff, 0xfe, 0x56, 0x30, 0x09,
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0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* IPv6 destination */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
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0x86, 0x00, 0xab, 0x32, 0x40, 0x58, 0x07, 0x08, /* ICMPv6 payload */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00,
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0x20, 0x02, 0x18, 0x3d, 0xdb, 0xa4, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x01, 0x58, 0x6d, 0x8f, 0x56, 0x30, 0x09
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};
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/* result unnormalized: take 1's-complement of 0
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* set next header and payload length as initial value */
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TEST_ASSERT_EQUAL_INT(0xffff, ng_inet_csum(0x38 + 0x3a, data, sizeof(data)));
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}
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static void test_inet_csum__calculate_csum(void)
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{
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/* source: http://en.wikipedia.org/w/index.php?title=IPv4_header_checksum&oldid=645516564
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* but left checksum 0 */
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uint8_t data[] = {
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0x45, 0x00, 0x00, 0x73, 0x00, 0x00, 0x40, 0x00,
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0x40, 0x11, 0x00, 0x00, 0xc0, 0xa8, 0x00, 0x01,
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0xc0, 0xa8, 0x00, 0xc7,
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};
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/* result unnormalized: take 1's-complement of 0xb861 */
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TEST_ASSERT_EQUAL_INT(0x479e, ng_inet_csum(0, data, sizeof(data)));
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}
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static void test_inet_csum__odd_len(void)
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{
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/* source: https://www.cloudshark.org/captures/ea72fbab241b (No. 1) */
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uint8_t data[] = {
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0xc0, 0xa8, 0x01, 0x91, 0x4b, 0x4b, 0x4b, 0x4b, /* IPv4 source + dest*/
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0xf6, 0xfb, 0x00, 0x35, 0x00, 0x27, 0xd1, 0xa2, /* UDP header */
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0xa5, 0x6f, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, /* DNS payload */
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0x00, 0x00, 0x00, 0x00, 0x09, 0x74, 0x65, 0x73,
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0x74, 0x2d, 0x69, 0x70, 0x76, 0x36, 0x03, 0x63,
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0x6f, 0x6d, 0x00, 0x00, 0x01, 0x00, 0x01,
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};
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/* result unnormalized: take 1's-complement of 0
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* set next header and payload length as initial value */
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TEST_ASSERT_EQUAL_INT(0xffff, ng_inet_csum(17 + 39, data, sizeof(data)));
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}
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Test *tests_inet_csum_tests(void)
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{
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EMB_UNIT_TESTFIXTURES(fixtures) {
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new_TestFixture(test_inet_csum__rfc_example),
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new_TestFixture(test_inet_csum__ipv6_pseudo_hdr),
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new_TestFixture(test_inet_csum__set_initial_sum),
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new_TestFixture(test_inet_csum__calculate_csum),
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new_TestFixture(test_inet_csum__odd_len),
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};
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EMB_UNIT_TESTCALLER(inet_csum_tests, NULL, NULL, fixtures);
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return (Test *)&inet_csum_tests;
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}
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void tests_inet_csum(void)
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{
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TESTS_RUN(tests_inet_csum_tests());
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}
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/** @} */
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