1 // SPDX-License-Identifier: GPL-2.0
2 #include <kunit/test.h>
3
4 #include "protocol.h"
5
6 struct test_case {
7 char *key;
8 char *msg;
9 char *result;
10 };
11
12 /* we can't reuse RFC 4231 test vectors, as we have constraint on the
13 * input and key size.
14 */
15 static struct test_case tests[] = {
16 {
17 .key = "0b0b0b0b0b0b0b0b",
18 .msg = "48692054",
19 .result = "8385e24fb4235ac37556b6b886db106284a1da671699f46db1f235ec622dcafa",
20 },
21 {
22 .key = "aaaaaaaaaaaaaaaa",
23 .msg = "dddddddd",
24 .result = "2c5e219164ff1dca1c4a92318d847bb6b9d44492984e1eb71aff9022f71046e9",
25 },
26 {
27 .key = "0102030405060708",
28 .msg = "cdcdcdcd",
29 .result = "e73b9ba9969969cefb04aa0d6df18ec2fcc075b6f23b4d8c4da736a5dbbc6e7d",
30 },
31 };
32
33 static void mptcp_crypto_test_basic(struct kunit *test)
34 {
35 char hmac[32], hmac_hex[65];
36 u32 nonce1, nonce2;
37 u64 key1, key2;
38 u8 msg[8];
39 int i, j;
40
41 for (i = 0; i < ARRAY_SIZE(tests); ++i) {
42 /* mptcp hmap will convert to be before computing the hmac */
43 key1 = be64_to_cpu(*((__be64 *)&tests[i].key[0]));
44 key2 = be64_to_cpu(*((__be64 *)&tests[i].key[8]));
45 nonce1 = be32_to_cpu(*((__be32 *)&tests[i].msg[0]));
46 nonce2 = be32_to_cpu(*((__be32 *)&tests[i].msg[4]));
47
48 put_unaligned_be32(nonce1, &msg[0]);
49 put_unaligned_be32(nonce2, &msg[4]);
50
51 mptcp_crypto_hmac_sha(key1, key2, msg, 8, hmac);
52 for (j = 0; j < 32; ++j)
53 sprintf(&hmac_hex[j << 1], "%02x", hmac[j] & 0xff);
54 hmac_hex[64] = 0;
55
56 KUNIT_EXPECT_STREQ(test, &hmac_hex[0], tests[i].result);
57 }
58 }
59
60 static struct kunit_case mptcp_crypto_test_cases[] = {
61 KUNIT_CASE(mptcp_crypto_test_basic),
62 {}
63 };
64
65 static struct kunit_suite mptcp_crypto_suite = {
66 .name = "mptcp-crypto",
67 .test_cases = mptcp_crypto_test_cases,
68 };
69
70 kunit_test_suite(mptcp_crypto_suite);
71
72 MODULE_LICENSE("GPL");
73 MODULE_DESCRIPTION("KUnit tests for MPTCP Crypto");
74
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