commit 33e1c2e6fd614f8cb42a6d5758d411d3f8d5411c Author: Alexander Færøy ahf@torproject.org Date: Tue Mar 31 02:28:12 2020 +0000
Run `tor_tls_cert_matches_key()` Test Suite with both OpenSSL and NSS.
This patch lifts the `tor_tls_cert_matches_key()` tests out of the OpenSSL specific TLS test suite and moves it into the generic TLS test suite that is executed for both OpenSSL and NSS.
This patch is largely a code movement, but we had to rewrite parts of the test to avoid using OpenSSL specific data-types (such as `X509 *`) and replace it with the generic Tor abstraction type (`tor_x509_cert_impl_t *`).
This patch is part of the fix for TROVE-2020-001.
See: https://bugs.torproject.org/33119 --- src/test/test_tortls.c | 73 ++++++++++++++++++++++++++++++++++++++++++ src/test/test_tortls_openssl.c | 70 ---------------------------------------- 2 files changed, 73 insertions(+), 70 deletions(-)
diff --git a/src/test/test_tortls.c b/src/test/test_tortls.c index 11e35be2f..853abc4f9 100644 --- a/src/test/test_tortls.c +++ b/src/test/test_tortls.c @@ -105,6 +105,17 @@ const char* caCertString = "-----BEGIN CERTIFICATE-----\n" "Yy1RT69d0rwYc5u/vnqODz1IjvT90smsrkBumGt791FAFeg=\n" "-----END CERTIFICATE-----\n";
+static tor_x509_cert_t *fixed_x509_cert = NULL; +static tor_x509_cert_t * +get_peer_cert_mock_return_fixed(tor_tls_t *tls) +{ + (void)tls; + if (fixed_x509_cert) + return tor_x509_cert_dup(fixed_x509_cert); + else + return NULL; +} + tor_x509_cert_impl_t * read_cert_from(const char *str) { @@ -513,6 +524,67 @@ test_tortls_verify(void *ignored) crypto_pk_free(k); }
+static void +test_tortls_cert_matches_key(void *ignored) +{ + (void)ignored; + + tor_x509_cert_impl_t *cert1 = NULL, + *cert2 = NULL, + *cert3 = NULL, + *cert4 = NULL; + tor_x509_cert_t *c1 = NULL, *c2 = NULL, *c3 = NULL, *c4 = NULL; + crypto_pk_t *k1 = NULL, *k2 = NULL, *k3 = NULL; + + k1 = pk_generate(1); + k2 = pk_generate(2); + k3 = pk_generate(3); + + cert1 = tor_tls_create_certificate(k1, k2, "A", "B", 1000); + cert2 = tor_tls_create_certificate(k1, k3, "C", "D", 1000); + cert3 = tor_tls_create_certificate(k2, k3, "C", "D", 1000); + cert4 = tor_tls_create_certificate(k3, k2, "E", "F", 1000); + + tt_assert(cert1 && cert2 && cert3 && cert4); + + c1 = tor_x509_cert_new(cert1); cert1 = NULL; + c2 = tor_x509_cert_new(cert2); cert2 = NULL; + c3 = tor_x509_cert_new(cert3); cert3 = NULL; + c4 = tor_x509_cert_new(cert4); cert4 = NULL; + + tt_assert(c1 && c2 && c3 && c4); + + MOCK(tor_tls_get_peer_cert, get_peer_cert_mock_return_fixed); + + fixed_x509_cert = NULL; + /* If the peer has no certificate, it shouldn't match anything. */ + tt_assert(! tor_tls_cert_matches_key(NULL, c1)); + tt_assert(! tor_tls_cert_matches_key(NULL, c2)); + tt_assert(! tor_tls_cert_matches_key(NULL, c3)); + tt_assert(! tor_tls_cert_matches_key(NULL, c4)); + fixed_x509_cert = c1; + /* If the peer has a certificate, it should match every cert with the same + * subject key. */ + tt_assert(tor_tls_cert_matches_key(NULL, c1)); + tt_assert(tor_tls_cert_matches_key(NULL, c2)); + tt_assert(! tor_tls_cert_matches_key(NULL, c3)); + tt_assert(! tor_tls_cert_matches_key(NULL, c4)); + + done: + tor_x509_cert_free(c1); + tor_x509_cert_free(c2); + tor_x509_cert_free(c3); + tor_x509_cert_free(c4); + if (cert1) tor_x509_cert_impl_free(cert1); + if (cert2) tor_x509_cert_impl_free(cert2); + if (cert3) tor_x509_cert_impl_free(cert3); + if (cert4) tor_x509_cert_impl_free(cert4); + crypto_pk_free(k1); + crypto_pk_free(k2); + crypto_pk_free(k3); + UNMOCK(tor_tls_get_peer_cert); +} + #define LOCAL_TEST_CASE(name, flags) \ { #name, test_tortls_##name, (flags|TT_FORK), NULL, NULL }
@@ -533,5 +605,6 @@ struct testcase_t tortls_tests[] = { LOCAL_TEST_CASE(is_server, 0), LOCAL_TEST_CASE(bridge_init, TT_FORK), LOCAL_TEST_CASE(verify, TT_FORK), + LOCAL_TEST_CASE(cert_matches_key, 0), END_OF_TESTCASES }; diff --git a/src/test/test_tortls_openssl.c b/src/test/test_tortls_openssl.c index 73041a871..f039980a2 100644 --- a/src/test/test_tortls_openssl.c +++ b/src/test/test_tortls_openssl.c @@ -479,75 +479,6 @@ fake_x509_free(X509 *cert) } #endif
-static tor_x509_cert_t *fixed_x509_cert = NULL; -static tor_x509_cert_t * -get_peer_cert_mock_return_fixed(tor_tls_t *tls) -{ - (void)tls; - if (fixed_x509_cert) - return tor_x509_cert_dup(fixed_x509_cert); - else - return NULL; -} - -static void -test_tortls_cert_matches_key(void *ignored) -{ - (void)ignored; - - X509 *cert1 = NULL, *cert2 = NULL, *cert3 = NULL, *cert4 = NULL; - tor_x509_cert_t *c1 = NULL, *c2 = NULL, *c3 = NULL, *c4 = NULL; - crypto_pk_t *k1 = NULL, *k2 = NULL, *k3 = NULL; - - k1 = pk_generate(1); - k2 = pk_generate(2); - k3 = pk_generate(3); - - cert1 = tor_tls_create_certificate(k1, k2, "A", "B", 1000); - cert2 = tor_tls_create_certificate(k1, k3, "C", "D", 1000); - cert3 = tor_tls_create_certificate(k2, k3, "C", "D", 1000); - cert4 = tor_tls_create_certificate(k3, k2, "E", "F", 1000); - - tt_assert(cert1 && cert2 && cert3 && cert4); - - c1 = tor_x509_cert_new(cert1); cert1 = NULL; - c2 = tor_x509_cert_new(cert2); cert2 = NULL; - c3 = tor_x509_cert_new(cert3); cert3 = NULL; - c4 = tor_x509_cert_new(cert4); cert4 = NULL; - - tt_assert(c1 && c2 && c3 && c4); - - MOCK(tor_tls_get_peer_cert, get_peer_cert_mock_return_fixed); - - fixed_x509_cert = NULL; - /* If the peer has no certificate, it shouldn't match anything. */ - tt_assert(! tor_tls_cert_matches_key(NULL, c1)); - tt_assert(! tor_tls_cert_matches_key(NULL, c2)); - tt_assert(! tor_tls_cert_matches_key(NULL, c3)); - tt_assert(! tor_tls_cert_matches_key(NULL, c4)); - fixed_x509_cert = c1; - /* If the peer has a certificate, it should match every cert with the same - * subject key. */ - tt_assert(tor_tls_cert_matches_key(NULL, c1)); - tt_assert(tor_tls_cert_matches_key(NULL, c2)); - tt_assert(! tor_tls_cert_matches_key(NULL, c3)); - tt_assert(! tor_tls_cert_matches_key(NULL, c4)); - - done: - tor_x509_cert_free(c1); - tor_x509_cert_free(c2); - tor_x509_cert_free(c3); - tor_x509_cert_free(c4); - if (cert1) X509_free(cert1); - if (cert2) X509_free(cert2); - if (cert3) X509_free(cert3); - if (cert4) X509_free(cert4); - crypto_pk_free(k1); - crypto_pk_free(k2); - crypto_pk_free(k3); - UNMOCK(tor_tls_get_peer_cert); -} - #ifndef OPENSSL_OPAQUE static void test_tortls_cert_get_key(void *ignored) @@ -2279,7 +2210,6 @@ struct testcase_t tortls_openssl_tests[] = { INTRUSIVE_TEST_CASE(get_error, TT_FORK), LOCAL_TEST_CASE(always_accept_verify_cb, 0), INTRUSIVE_TEST_CASE(x509_cert_free, 0), - LOCAL_TEST_CASE(cert_matches_key, 0), INTRUSIVE_TEST_CASE(cert_get_key, 0), LOCAL_TEST_CASE(get_my_client_auth_key, TT_FORK), INTRUSIVE_TEST_CASE(get_ciphersuite_name, 0),