denozord/strongswan-ext
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

chunk: Add function to calculate Internet Checksums according to RFC 1071

Browse Source
This commit is contained in:
Tobias Brunner
2014-07-22 11:10:35 +02:00
parent a10eb93566
commit b557f4a7cd
3 changed files with 105 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libstrongswan/tests/suites/test_chunk.c
+49
View File
@@ -783,6 +783,51 @@ START_TEST(test_chunk_hash_static)
}
END_TEST
/*******************************************************************************
* test for chunk_internet_checksum[_inc]()
*/
START_TEST(test_chunk_internet_checksum)
{
chunk_t chunk;
u_int16_t sum;
chunk = chunk_from_chars(0x45,0x00,0x00,0x30,0x44,0x22,0x40,0x00,0x80,0x06,
0x00,0x00,0x8c,0x7c,0x19,0xac,0xae,0x24,0x1e,0x2b);
sum = chunk_internet_checksum(chunk);
ck_assert_int_eq(0x442e, ntohs(sum));
sum = chunk_internet_checksum(chunk_create(chunk.ptr, 10));
sum = chunk_internet_checksum_inc(chunk_create(chunk.ptr+10, 10), sum);
ck_assert_int_eq(0x442e, ntohs(sum));
/* need to compensate for even/odd alignment */
sum = chunk_internet_checksum(chunk_create(chunk.ptr, 9));
sum = ntohs(sum);
sum = chunk_internet_checksum_inc(chunk_create(chunk.ptr+9, 11), sum);
sum = ntohs(sum);
ck_assert_int_eq(0x442e, ntohs(sum));
chunk = chunk_from_chars(0x45,0x00,0x00,0x30,0x44,0x22,0x40,0x00,0x80,0x06,
0x00,0x00,0x8c,0x7c,0x19,0xac,0xae,0x24,0x1e);
sum = chunk_internet_checksum(chunk);
ck_assert_int_eq(0x4459, ntohs(sum));
sum = chunk_internet_checksum(chunk_create(chunk.ptr, 10));
sum = chunk_internet_checksum_inc(chunk_create(chunk.ptr+10, 9), sum);
ck_assert_int_eq(0x4459, ntohs(sum));
/* need to compensate for even/odd alignment */
sum = chunk_internet_checksum(chunk_create(chunk.ptr, 9));
sum = ntohs(sum);
sum = chunk_internet_checksum_inc(chunk_create(chunk.ptr+9, 10), sum);
sum = ntohs(sum);
ck_assert_int_eq(0x4459, ntohs(sum));
}
END_TEST
/*******************************************************************************
* test for chunk_map and friends
*/
@@ -1018,6 +1063,10 @@ Suite *chunk_suite_create()
tcase_add_test(tc, test_chunk_hash_static);
suite_add_tcase(s, tc);
tc = tcase_create("chunk_internet_checksum");
tcase_add_test(tc, test_chunk_internet_checksum);
suite_add_tcase(s, tc);
tc = tcase_create("chunk_map");
tcase_add_test(tc, test_chunk_map);
suite_add_tcase(s, tc);