1 files changed, 91 insertions, 0 deletions
diff --git a/test/prov_config_test.c b/test/prov_config_test.c
new file mode 100644
index 000000000000..b44ec78d8d24
--- /dev/null
+++ b/test/prov_config_test.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/evp.h>
+#include <openssl/conf.h>
+#include "testutil.h"
+
+static char *configfile = NULL;
+static char *recurseconfigfile = NULL;
+
+/*
+ * Test to make sure there are no leaks or failures from loading the config
+ * file twice.
+ */
+static int test_double_config(void)
+{
+    OSSL_LIB_CTX *ctx = OSSL_LIB_CTX_new();
+    int testresult = 0;
+    EVP_MD *sha256 = NULL;
+
+    if (!TEST_ptr(configfile))
+        return 0;
+    if (!TEST_ptr(ctx))
+        return 0;
+
+    if (!TEST_true(OSSL_LIB_CTX_load_config(ctx, configfile)))
+        return 0;
+    if (!TEST_true(OSSL_LIB_CTX_load_config(ctx, configfile)))
+        return 0;
+
+    /* Check we can actually fetch something */
+    sha256 = EVP_MD_fetch(ctx, "SHA2-256", NULL);
+    if (!TEST_ptr(sha256))
+        goto err;
+
+    testresult = 1;
+ err:
+    EVP_MD_free(sha256);
+    OSSL_LIB_CTX_free(ctx);
+    return testresult;
+}
+
+static int test_recursive_config(void)
+{
+    OSSL_LIB_CTX *ctx = OSSL_LIB_CTX_new();
+    int testresult = 0;
+    unsigned long err;
+
+    if (!TEST_ptr(recurseconfigfile))
+        goto err;
+
+    if (!TEST_ptr(ctx))
+        goto err;
+
+    if (!TEST_false(OSSL_LIB_CTX_load_config(ctx, recurseconfigfile)))
+        goto err;
+
+    err = ERR_peek_error();
+    /* We expect to get a recursion error here */
+    if (ERR_GET_REASON(err) == CONF_R_RECURSIVE_SECTION_REFERENCE)
+        testresult = 1;
+ err:
+    OSSL_LIB_CTX_free(ctx);
+    return testresult;
+}
+
+OPT_TEST_DECLARE_USAGE("configfile\n")
+
+int setup_tests(void)
+{
+    if (!test_skip_common_options()) {
+        TEST_error("Error parsing test options\n");
+        return 0;
+    }
+
+    if (!TEST_ptr(configfile = test_get_argument(0)))
+        return 0;
+
+    if (!TEST_ptr(recurseconfigfile = test_get_argument(1)))
+        return 0;
+
+    ADD_TEST(test_recursive_config);
+    ADD_TEST(test_double_config);
+    return 1;
+}