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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include "tls/s2n_crl.h"
#include "s2n_test.h"
#include "testlib/s2n_testlib.h"
#define S2N_CRL_ROOT_CERT "../pems/crl/root_cert.pem"
#define S2N_CRL_NONE_REVOKED_CERT_CHAIN "../pems/crl/none_revoked_cert_chain.pem"
#define S2N_CRL_NONE_REVOKED_KEY "../pems/crl/none_revoked_key.pem"
#define S2N_CRL_INTERMEDIATE_REVOKED_CERT_CHAIN "../pems/crl/intermediate_revoked_cert_chain.pem"
#define S2N_CRL_INTERMEDIATE_REVOKED_KEY "../pems/crl/intermediate_revoked_key.pem"
#define S2N_CRL_LEAF_REVOKED_CERT_CHAIN "../pems/crl/leaf_revoked_cert_chain.pem"
#define S2N_CRL_LEAF_REVOKED_KEY "../pems/crl/leaf_revoked_key.pem"
#define S2N_CRL_ALL_REVOKED_CERT_CHAIN "../pems/crl/all_revoked_cert_chain.pem"
#define S2N_CRL_ALL_REVOKED_KEY "../pems/crl/all_revoked_key.pem"
#define S2N_CRL_ROOT_CRL "../pems/crl/root_crl.pem"
#define S2N_CRL_INTERMEDIATE_CRL "../pems/crl/intermediate_crl.pem"
#define S2N_CRL_INTERMEDIATE_REVOKED_CRL "../pems/crl/intermediate_revoked_crl.pem"
#define S2N_CRL_INTERMEDIATE_INVALID_THIS_UPDATE_CRL "../pems/crl/intermediate_invalid_this_update_crl.pem"
#define S2N_CRL_INTERMEDIATE_INVALID_NEXT_UPDATE_CRL "../pems/crl/intermediate_invalid_next_update_crl.pem"
#define CRL_TEST_CHAIN_LEN 2
struct crl_lookup_data {
struct s2n_crl *crls[5];
X509 *certs[5];
uint8_t callback_invoked_count;
};
static int crl_lookup_test_callback(struct s2n_crl_lookup *lookup, void *context)
{
struct crl_lookup_data *crl_data = (struct crl_lookup_data *) context;
crl_data->callback_invoked_count += 1;
crl_data->certs[lookup->cert_idx] = lookup->cert;
struct s2n_crl *crl = crl_data->crls[lookup->cert_idx];
if (crl == NULL) {
POSIX_GUARD(s2n_crl_lookup_ignore(lookup));
} else {
POSIX_GUARD(s2n_crl_lookup_set(lookup, crl));
}
return 0;
}
static int crl_lookup_noop(struct s2n_crl_lookup *lookup, void *context)
{
return 0;
}
static int crl_lookup_callback_fail(struct s2n_crl_lookup *lookup, void *context)
{
return 1;
}
static uint8_t verify_host_always_allow(const char *host_name, size_t host_name_len, void *data)
{
return 1;
}
static struct s2n_crl *load_test_crl(const char *pem_path)
{
uint8_t crl_pem[S2N_MAX_TEST_PEM_SIZE] = { 0 };
uint32_t pem_len = 0;
PTR_GUARD_POSIX(s2n_read_test_pem_and_len(pem_path, crl_pem, &pem_len, S2N_MAX_TEST_PEM_SIZE));
DEFER_CLEANUP(struct s2n_crl *crl = s2n_crl_new(), s2n_crl_free);
PTR_ENSURE_REF(crl);
PTR_GUARD_POSIX(s2n_crl_load_pem(crl, crl_pem, pem_len));
struct s2n_crl *crl_ret = crl;
ZERO_TO_DISABLE_DEFER_CLEANUP(crl);
return crl_ret;
}
int main(int argc, char *argv[])
{
BEGIN_TEST();
/* s2n_crl_new allocates and frees a s2n_crl */
{
struct s2n_crl *crl = s2n_crl_new();
EXPECT_NOT_NULL(crl);
EXPECT_SUCCESS(s2n_crl_free(&crl));
EXPECT_NULL(crl);
/* Multiple calls to free succeed */
EXPECT_SUCCESS(s2n_crl_free(&crl));
EXPECT_NULL(crl);
};
/* s2n_crl_new allocates and frees a s2n_crl with an internal X509_CRL set */
{
struct s2n_crl *crl = load_test_crl(S2N_CRL_ROOT_CRL);
EXPECT_NOT_NULL(crl);
EXPECT_NOT_NULL(crl->crl);
EXPECT_SUCCESS(s2n_crl_free(&crl));
EXPECT_NULL(crl);
/* Multiple calls to free succeed */
EXPECT_SUCCESS(s2n_crl_free(&crl));
EXPECT_NULL(crl);
};
/* Ensure s2n_crl_load_pem produces a valid X509_CRL internally */
{
DEFER_CLEANUP(struct s2n_crl *crl = load_test_crl(S2N_CRL_ROOT_CRL), s2n_crl_free);
EXPECT_NOT_NULL(crl);
EXPECT_NOT_NULL(crl->crl);
/* Make sure an OpenSSL operation succeeds on the internal X509_CRL */
X509_NAME *crl_name = X509_CRL_get_issuer(crl->crl);
POSIX_ENSURE_REF(crl_name);
};
/* s2n_crl_load_pem fails if provided a bad pem */
{
uint8_t crl_pem[S2N_MAX_TEST_PEM_SIZE] = { 0 };
uint32_t crl_pem_len = 0;
EXPECT_SUCCESS(s2n_read_test_pem_and_len(S2N_CRL_ROOT_CRL, crl_pem, &crl_pem_len, S2N_MAX_TEST_PEM_SIZE));
DEFER_CLEANUP(struct s2n_crl *crl = s2n_crl_new(), s2n_crl_free);
EXPECT_NOT_NULL(crl);
EXPECT_SUCCESS(s2n_crl_load_pem(crl, crl_pem, crl_pem_len));
/* Change a random byte in the pem to make it invalid */
crl_pem[50] = 1;
DEFER_CLEANUP(struct s2n_crl *invalid_crl = s2n_crl_new(), s2n_crl_free);
EXPECT_NOT_NULL(invalid_crl);
EXPECT_FAILURE_WITH_ERRNO(s2n_crl_load_pem(invalid_crl, crl_pem, crl_pem_len),
S2N_ERR_INVALID_PEM);
};
/* CRL issuer hash is retrieved successfully */
{
DEFER_CLEANUP(struct s2n_crl *crl = load_test_crl(S2N_CRL_ROOT_CRL), s2n_crl_free);
EXPECT_NOT_NULL(crl);
uint64_t hash = 0;
EXPECT_SUCCESS(s2n_crl_get_issuer_hash(crl, &hash));
EXPECT_TRUE(hash != 0);
};
DEFER_CLEANUP(struct s2n_crl *root_crl = load_test_crl(S2N_CRL_ROOT_CRL), s2n_crl_free);
EXPECT_NOT_NULL(root_crl);
DEFER_CLEANUP(struct s2n_crl *intermediate_crl = load_test_crl(S2N_CRL_INTERMEDIATE_CRL), s2n_crl_free);
EXPECT_NOT_NULL(intermediate_crl);
DEFER_CLEANUP(struct s2n_crl *intermediate_revoked_crl = load_test_crl(S2N_CRL_INTERMEDIATE_REVOKED_CRL), s2n_crl_free);
EXPECT_NOT_NULL(intermediate_revoked_crl);
DEFER_CLEANUP(struct s2n_crl *intermediate_invalid_this_update_crl =
load_test_crl(S2N_CRL_INTERMEDIATE_INVALID_THIS_UPDATE_CRL),
s2n_crl_free);
EXPECT_NOT_NULL(intermediate_invalid_this_update_crl);
DEFER_CLEANUP(struct s2n_crl *intermediate_invalid_next_update_crl =
load_test_crl(S2N_CRL_INTERMEDIATE_INVALID_NEXT_UPDATE_CRL),
s2n_crl_free);
EXPECT_NOT_NULL(intermediate_invalid_next_update_crl);
/* Save a list of received X509s for s2n_crl_lookup tests */
struct crl_lookup_data received_lookup_data = { 0 };
DEFER_CLEANUP(struct s2n_x509_validator received_lookup_data_validator, s2n_x509_validator_wipe);
/* CRL validation succeeds for unrevoked certificate chain */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
EXPECT_SUCCESS(s2n_x509_validator_init(&received_lookup_data_validator, &trust_store, 0));
received_lookup_data.crls[0] = intermediate_crl;
received_lookup_data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &received_lookup_data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_NONE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_OK(s2n_x509_validator_validate_cert_chain(&received_lookup_data_validator, connection, chain_data,
chain_len, &pkey_type, &public_key_out));
EXPECT_TRUE(received_lookup_data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
/* Ensure all certificates were received in the callback */
for (int i = 0; i < CRL_TEST_CHAIN_LEN; i++) {
EXPECT_NOT_NULL(received_lookup_data.certs[i]);
}
};
/* CRL validation errors when a leaf certificate is revoked */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_crl;
data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_LEAF_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data,
chain_len, &pkey_type, &public_key_out),
S2N_ERR_CERT_REVOKED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* CRL validation errors when an intermediate certificate is revoked */
for (int i = 0; i < 2; i++) {
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_revoked_crl;
data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
if (i == 0) {
/* Ensure CRL validation fails when only the intermediate certificate is revoked */
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_INTERMEDIATE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
} else if (i == 1) {
/* Ensure CRL validation fails when both the intermediate and leaf certificates are revoked */
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_ALL_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
}
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data,
chain_len, &pkey_type, &public_key_out),
S2N_ERR_CERT_REVOKED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
}
/* CRL validation fails when a certificate is rejected from the callback */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_NONE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data,
chain_len, &pkey_type, &public_key_out),
S2N_ERR_CRL_LOOKUP_FAILED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* CRL validation succeeds for unrevoked certificate chain when extraneous certificate is rejected */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_crl;
data.crls[1] = root_crl;
/* Reject the extraneous cert */
data.crls[2] = NULL;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
uint8_t cert_chain_pem[S2N_MAX_TEST_PEM_SIZE * 2];
uint32_t pem_len_1 = 0;
EXPECT_SUCCESS(s2n_read_test_pem_and_len(S2N_CRL_NONE_REVOKED_CERT_CHAIN, cert_chain_pem, &pem_len_1,
S2N_MAX_TEST_PEM_SIZE));
/* Add an arbitrary cert to the chain that won't be included in the chain of trust */
uint32_t pem_len_2 = 0;
EXPECT_SUCCESS(s2n_read_test_pem_and_len(S2N_RSA_2048_SHA256_CLIENT_CERT, cert_chain_pem + pem_len_1,
&pem_len_2, S2N_MAX_TEST_PEM_SIZE));
uint32_t cert_chain_len = pem_len_1 + pem_len_2;
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem_data(connection, cert_chain_pem, cert_chain_len, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_OK(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len, &pkey_type,
&public_key_out));
EXPECT_TRUE(data.callback_invoked_count == 3);
};
/* s2n_x509_validator_validate_cert_chain blocks until all CRL callbacks respond */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_noop, NULL));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_NONE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
/* Blocks if no response received from callbacks */
for (int i = 0; i < 10; i++) {
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len,
&pkey_type, &public_key_out),
S2N_ERR_ASYNC_BLOCKED);
}
/* Continues to block if only one callback has sent a response */
struct s2n_crl_lookup *lookup = NULL;
EXPECT_OK(s2n_array_get(validator.crl_lookup_list, 0, (void **) &lookup));
EXPECT_NOT_NULL(lookup);
EXPECT_SUCCESS(s2n_crl_lookup_set(lookup, root_crl));
for (int i = 0; i < 10; ++i) {
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len,
&pkey_type, &public_key_out),
S2N_ERR_ASYNC_BLOCKED);
}
/* Unblocks when all callbacks send a response */
lookup = NULL;
EXPECT_OK(s2n_array_get(validator.crl_lookup_list, 1, (void **) &lookup));
EXPECT_NOT_NULL(lookup);
EXPECT_SUCCESS(s2n_crl_lookup_set(lookup, intermediate_crl));
EXPECT_OK(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len, &pkey_type,
&public_key_out));
};
/* CRL validation fails when a callback returns unsuccessfully */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_callback_fail, NULL));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_NONE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data,
chain_len, &pkey_type, &public_key_out),
S2N_ERR_CANCELLED);
};
/* CRL validation succeeds for a CRL with an invalid thisUpdate date */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_invalid_this_update_crl;
data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_NONE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_OK(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len, &pkey_type,
&public_key_out));
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* CRL validation fails for a revoked leaf certificate, with a CRL that has an invalid thisUpdate date */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_invalid_this_update_crl;
data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_LEAF_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len,
&pkey_type, &public_key_out),
S2N_ERR_CERT_REVOKED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* CRL validation succeeds for a CRL with an invalid nextUpdate date */
for (int disable_time_validation = 0; disable_time_validation <= 1; disable_time_validation += 1) {
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_invalid_next_update_crl;
data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
/* Ensure that validation succeeds for a CRL with an invalid nextUpdate field when time
* validation is disabled.
*/
if (disable_time_validation) {
EXPECT_SUCCESS(s2n_config_disable_x509_time_verification(config));
}
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_NONE_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_OK(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len, &pkey_type,
&public_key_out));
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* CRL validation fails for a revoked leaf certificate, with a CRL that has an invalid nextUpdate date */
{
DEFER_CLEANUP(struct s2n_x509_trust_store trust_store = { 0 }, s2n_x509_trust_store_wipe);
s2n_x509_trust_store_init_empty(&trust_store);
char root_cert[S2N_MAX_TEST_PEM_SIZE];
EXPECT_SUCCESS(s2n_read_test_pem(S2N_CRL_ROOT_CERT, root_cert, S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(s2n_x509_trust_store_add_pem(&trust_store, root_cert));
DEFER_CLEANUP(struct s2n_x509_validator validator, s2n_x509_validator_wipe);
EXPECT_SUCCESS(s2n_x509_validator_init(&validator, &trust_store, 0));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_invalid_next_update_crl;
data.crls[1] = root_crl;
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *connection = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(connection);
EXPECT_SUCCESS(s2n_connection_set_config(connection, config));
EXPECT_SUCCESS(s2n_set_server_name(connection, "localhost"));
DEFER_CLEANUP(struct s2n_stuffer cert_chain_stuffer = { 0 }, s2n_stuffer_free);
EXPECT_OK(s2n_test_cert_chain_data_from_pem(connection, S2N_CRL_LEAF_REVOKED_CERT_CHAIN, &cert_chain_stuffer));
uint32_t chain_len = s2n_stuffer_data_available(&cert_chain_stuffer);
uint8_t *chain_data = s2n_stuffer_raw_read(&cert_chain_stuffer, chain_len);
EXPECT_NOT_NULL(chain_data);
DEFER_CLEANUP(struct s2n_pkey public_key_out = { 0 }, s2n_pkey_free);
EXPECT_SUCCESS(s2n_pkey_zero_init(&public_key_out));
s2n_pkey_type pkey_type = S2N_PKEY_TYPE_UNKNOWN;
EXPECT_ERROR_WITH_ERRNO(s2n_x509_validator_validate_cert_chain(&validator, connection, chain_data, chain_len,
&pkey_type, &public_key_out),
S2N_ERR_CERT_REVOKED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* Self-talk: server certificate is not revoked */
{
DEFER_CLEANUP(struct s2n_cert_chain_and_key *chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&chain_and_key,
S2N_CRL_NONE_REVOKED_CERT_CHAIN, S2N_CRL_NONE_REVOKED_KEY));
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(config, chain_and_key));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(config, S2N_CRL_ROOT_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(config, "default"));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_crl;
data.crls[1] = root_crl;
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "localhost"));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* Self-talk: server certificate is revoked */
{
DEFER_CLEANUP(struct s2n_cert_chain_and_key *chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&chain_and_key,
S2N_CRL_LEAF_REVOKED_CERT_CHAIN, S2N_CRL_LEAF_REVOKED_KEY));
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(config, chain_and_key));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(config, S2N_CRL_ROOT_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(config, "default"));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_crl;
data.crls[1] = root_crl;
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
EXPECT_SUCCESS(s2n_connection_set_blinding(server_conn, S2N_SELF_SERVICE_BLINDING));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "localhost"));
EXPECT_SUCCESS(s2n_connection_set_blinding(client_conn, S2N_SELF_SERVICE_BLINDING));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(server_conn, &io_pair));
EXPECT_FAILURE_WITH_ERRNO(s2n_negotiate_test_server_and_client(server_conn, client_conn),
S2N_ERR_CERT_REVOKED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* Self-talk: client certificate is not revoked */
{
DEFER_CLEANUP(struct s2n_cert_chain_and_key *server_chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&server_chain_and_key,
S2N_DEFAULT_TEST_CERT_CHAIN, S2N_DEFAULT_TEST_PRIVATE_KEY));
DEFER_CLEANUP(struct s2n_config *server_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(server_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, server_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(server_config, S2N_CRL_ROOT_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default"));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(server_config, S2N_CERT_AUTH_REQUIRED));
DEFER_CLEANUP(struct s2n_cert_chain_and_key *client_chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&client_chain_and_key,
S2N_CRL_NONE_REVOKED_CERT_CHAIN, S2N_CRL_NONE_REVOKED_KEY));
DEFER_CLEANUP(struct s2n_config *client_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(client_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(client_config, client_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(client_config, S2N_DEFAULT_TEST_CERT_CHAIN, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default"));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(client_config, S2N_CERT_AUTH_REQUIRED));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_crl;
data.crls[1] = root_crl;
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(server_config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
EXPECT_SUCCESS(s2n_connection_set_verify_host_callback(server_conn, verify_host_always_allow, NULL));
EXPECT_SUCCESS(s2n_connection_set_blinding(server_conn, S2N_SELF_SERVICE_BLINDING));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "localhost"));
EXPECT_SUCCESS(s2n_connection_set_blinding(client_conn, S2N_SELF_SERVICE_BLINDING));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* Self-talk: client certificate is revoked */
{
DEFER_CLEANUP(struct s2n_cert_chain_and_key *server_chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&server_chain_and_key,
S2N_DEFAULT_TEST_CERT_CHAIN, S2N_DEFAULT_TEST_PRIVATE_KEY));
DEFER_CLEANUP(struct s2n_config *server_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(server_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, server_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(server_config, S2N_CRL_ROOT_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default"));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(server_config, S2N_CERT_AUTH_REQUIRED));
DEFER_CLEANUP(struct s2n_cert_chain_and_key *client_chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&client_chain_and_key,
S2N_CRL_LEAF_REVOKED_CERT_CHAIN, S2N_CRL_LEAF_REVOKED_KEY));
DEFER_CLEANUP(struct s2n_config *client_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(client_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(client_config, client_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(client_config, S2N_DEFAULT_TEST_CERT_CHAIN, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default"));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(client_config, S2N_CERT_AUTH_REQUIRED));
struct crl_lookup_data data = { 0 };
data.crls[0] = intermediate_crl;
data.crls[1] = root_crl;
EXPECT_SUCCESS(s2n_config_set_crl_lookup_cb(server_config, crl_lookup_test_callback, &data));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
EXPECT_SUCCESS(s2n_connection_set_verify_host_callback(server_conn, verify_host_always_allow, NULL));
EXPECT_SUCCESS(s2n_connection_set_blinding(server_conn, S2N_SELF_SERVICE_BLINDING));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "localhost"));
EXPECT_SUCCESS(s2n_connection_set_blinding(client_conn, S2N_SELF_SERVICE_BLINDING));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(server_conn, &io_pair));
EXPECT_FAILURE_WITH_ERRNO(s2n_negotiate_test_server_and_client(server_conn, client_conn),
S2N_ERR_CERT_REVOKED);
EXPECT_TRUE(data.callback_invoked_count == CRL_TEST_CHAIN_LEN);
};
/* Calling s2n_crl_lookup return functions correctly set context fields */
{
struct s2n_crl_lookup lookup = { 0 };
lookup.status = AWAITING_RESPONSE;
EXPECT_SUCCESS(s2n_crl_lookup_set(&lookup, root_crl));
EXPECT_TRUE(lookup.status == FINISHED);
EXPECT_NOT_NULL(lookup.crl);
lookup.status = AWAITING_RESPONSE;
EXPECT_SUCCESS(s2n_crl_lookup_ignore(&lookup));
EXPECT_TRUE(lookup.status == FINISHED);
EXPECT_NULL(lookup.crl);
};
/* Certificate issuer hash is retrieved successfully */
{
struct s2n_crl_lookup lookup = { 0 };
EXPECT_NOT_NULL(received_lookup_data.certs[0]);
lookup.cert = received_lookup_data.certs[0];
uint64_t hash = 0;
EXPECT_SUCCESS(s2n_crl_lookup_get_cert_issuer_hash(&lookup, &hash));
EXPECT_TRUE(hash != 0);
};
/* Retrieved hash values for certificates match CRL hashes */
{
/* The hash of the leaf certificate matches the hash of the intermediate CRL */
struct s2n_crl_lookup leaf_lookup = { 0 };
EXPECT_NOT_NULL(received_lookup_data.certs[0]);
leaf_lookup.cert = received_lookup_data.certs[0];
uint64_t leaf_cert_hash = 0;
EXPECT_SUCCESS(s2n_crl_lookup_get_cert_issuer_hash(&leaf_lookup, &leaf_cert_hash));
EXPECT_TRUE(leaf_cert_hash != 0);
uint64_t intermediate_crl_hash = 0;
EXPECT_SUCCESS(s2n_crl_get_issuer_hash(intermediate_crl, &intermediate_crl_hash));
EXPECT_TRUE(intermediate_crl_hash != 0);
EXPECT_TRUE(leaf_cert_hash == intermediate_crl_hash);
/* The hash of the intermediate certificate matches the hash of the root CRL */
struct s2n_crl_lookup intermediate_lookup = { 0 };
EXPECT_NOT_NULL(received_lookup_data.certs[1]);
intermediate_lookup.cert = received_lookup_data.certs[1];
uint64_t intermediate_cert_hash = 0;
EXPECT_SUCCESS(s2n_crl_lookup_get_cert_issuer_hash(&intermediate_lookup, &intermediate_cert_hash));
EXPECT_TRUE(intermediate_cert_hash != 0);
uint64_t root_crl_hash = 0;
EXPECT_SUCCESS(s2n_crl_get_issuer_hash(root_crl, &root_crl_hash));
EXPECT_TRUE(root_crl_hash != 0);
EXPECT_TRUE(intermediate_cert_hash == root_crl_hash);
/* If the certificate and CRL were issued by different CAs, their hashes should not match */
EXPECT_TRUE(leaf_cert_hash != root_crl_hash);
};
/* s2n_crl_validate_active tests */
{
/* Succeeds for valid CRL */
EXPECT_SUCCESS(s2n_crl_validate_active(intermediate_crl));
/* Succeeds for expired CRL */
EXPECT_SUCCESS(s2n_crl_validate_active(intermediate_invalid_next_update_crl));
/* Fails for CRL that is not yet valid */
EXPECT_FAILURE_WITH_ERRNO(s2n_crl_validate_active(intermediate_invalid_this_update_crl),
S2N_ERR_CRL_NOT_YET_VALID);
};
/* s2n_crl_validate_not_expired tests */
{
/* Succeeds for valid CRL */
EXPECT_SUCCESS(s2n_crl_validate_not_expired(intermediate_crl));
/* Succeeds for CRL that is not yet valid */
EXPECT_SUCCESS(s2n_crl_validate_not_expired(intermediate_invalid_this_update_crl));
/* Fails for expired CRL */
EXPECT_FAILURE_WITH_ERRNO(s2n_crl_validate_not_expired(intermediate_invalid_next_update_crl),
S2N_ERR_CRL_EXPIRED);
};
END_TEST();
}
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