From a00a582203dbc43ea311a50e979038fc0c8ee19f Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Fri, 26 Jun 2020 19:30:01 +0200 Subject: mptcp: move crypto test to KUNIT currently MPTCP uses a custom hook to executed unit tests at boot time. Let's use the KUNIT framework instead. Additionally move the relevant code to a separate file and export the function needed by the test when self-tests are build as a module. Co-developed-by: Matthieu Baerts Signed-off-by: Matthieu Baerts Signed-off-by: Paolo Abeni Reviewed-by: Mat Martineau Signed-off-by: David S. Miller --- net/mptcp/crypto_test.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 net/mptcp/crypto_test.c (limited to 'net/mptcp/crypto_test.c') diff --git a/net/mptcp/crypto_test.c b/net/mptcp/crypto_test.c new file mode 100644 index 000000000000..017248dea038 --- /dev/null +++ b/net/mptcp/crypto_test.c @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0 +#include + +#include "protocol.h" + +struct test_case { + char *key; + char *msg; + char *result; +}; + +/* we can't reuse RFC 4231 test vectors, as we have constraint on the + * input and key size. + */ +static struct test_case tests[] = { + { + .key = "0b0b0b0b0b0b0b0b", + .msg = "48692054", + .result = "8385e24fb4235ac37556b6b886db106284a1da671699f46db1f235ec622dcafa", + }, + { + .key = "aaaaaaaaaaaaaaaa", + .msg = "dddddddd", + .result = "2c5e219164ff1dca1c4a92318d847bb6b9d44492984e1eb71aff9022f71046e9", + }, + { + .key = "0102030405060708", + .msg = "cdcdcdcd", + .result = "e73b9ba9969969cefb04aa0d6df18ec2fcc075b6f23b4d8c4da736a5dbbc6e7d", + }, +}; + +static void mptcp_crypto_test_basic(struct kunit *test) +{ + char hmac[32], hmac_hex[65]; + u32 nonce1, nonce2; + u64 key1, key2; + u8 msg[8]; + int i, j; + + for (i = 0; i < ARRAY_SIZE(tests); ++i) { + /* mptcp hmap will convert to be before computing the hmac */ + key1 = be64_to_cpu(*((__be64 *)&tests[i].key[0])); + key2 = be64_to_cpu(*((__be64 *)&tests[i].key[8])); + nonce1 = be32_to_cpu(*((__be32 *)&tests[i].msg[0])); + nonce2 = be32_to_cpu(*((__be32 *)&tests[i].msg[4])); + + put_unaligned_be32(nonce1, &msg[0]); + put_unaligned_be32(nonce2, &msg[4]); + + mptcp_crypto_hmac_sha(key1, key2, msg, 8, hmac); + for (j = 0; j < 32; ++j) + sprintf(&hmac_hex[j << 1], "%02x", hmac[j] & 0xff); + hmac_hex[64] = 0; + + KUNIT_EXPECT_STREQ(test, &hmac_hex[0], tests[i].result); + } +} + +static struct kunit_case mptcp_crypto_test_cases[] = { + KUNIT_CASE(mptcp_crypto_test_basic), + {} +}; + +static struct kunit_suite mptcp_crypto_suite = { + .name = "mptcp-crypto", + .test_cases = mptcp_crypto_test_cases, +}; + +kunit_test_suite(mptcp_crypto_suite); + +MODULE_LICENSE("GPL"); -- cgit v1.2.3