Add config tests for including provider config files

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22598)

test/conf_include_test.c

@@ -37,28 +37,32 @@
 #endif
 
 /* changes path to that of the filename */
-static int change_path(const char *file)
+static char *change_path(const char *file)
 {
     char *s = OPENSSL_strdup(file);
     char *p = s;
     char *last = NULL;
     int ret = 0;
+    char *new_config_name = NULL;
 
     if (s == NULL)
-        return -1;
+        return NULL;
 
     while ((p = strpbrk(p, DIRSEP)) != NULL) {
         last = p++;
     }
     if (last == NULL)
         goto err;
-    last[DIRSEP_PRESERVE] = 0;
 
+    last[DIRSEP_PRESERVE] = 0;
     TEST_note("changing path to %s", s);
+
     ret = chdir(s);
+    if (ret == 0)
+        new_config_name = strdup(last + DIRSEP_PRESERVE + 1);
  err:
     OPENSSL_free(s);
-    return ret;
+    return new_config_name;
 }
 
 /*
@@ -68,6 +72,9 @@ static int change_path(const char *file)
 static CONF *conf;
 static BIO *in;
 static int expect_failure = 0;
+static int test_providers = 0;
+static OSSL_LIB_CTX *libctx = NULL;
+static char *rel_conf_file = NULL;
 
 static int test_load_config(void)
 {
@@ -116,6 +123,27 @@ static int test_load_config(void)
         return 0;
     }
 
+    if (test_providers != 0) {
+        /* test for `active` directive in configuration file */
+        val = 0;
+        if (!TEST_int_eq(NCONF_get_number(conf, "null_sect", "activate", &val), 1)
+            || !TEST_int_eq(val, 1)) {
+            TEST_note("null provider not activated");
+            return 0;
+        }
+        val = 0;
+        if (!TEST_int_eq(NCONF_get_number(conf, "default_sect", "activate", &val), 1)
+            || !TEST_int_eq(val, 1)) {
+            TEST_note("default provider not activated");
+            return 0;
+        }
+        val = 0;
+        if (!TEST_int_eq(NCONF_get_number(conf, "legacy_sect", "activate", &val), 1)
+            || !TEST_int_eq(val, 1)) {
+            TEST_note("legacy provider not activated");
+            return 0;
+        }
+    }
     return 1;
 }
 
@@ -174,10 +202,33 @@ static int test_check_overflow(void)
     return 1;
 }
 
+static int test_available_providers(void)
+{
+    libctx = OSSL_LIB_CTX_new();
+    if (!TEST_ptr(libctx))
+        return 0;
+
+    if (!TEST_ptr(rel_conf_file) || !OSSL_LIB_CTX_load_config(libctx, rel_conf_file)) {
+        TEST_note("Failed to load config");
+        return 0;
+    }
+
+    if (OSSL_PROVIDER_available(libctx, "default") != 1) {
+        TEST_note("Default provider is missing");
+        return 0;
+    }
+    if (OSSL_PROVIDER_available(libctx, "legacy") != 1) {
+        TEST_note("Legacy provider is missing");
+        return 0;
+    }
+    return 1;
+}
+
 typedef enum OPTION_choice {
     OPT_ERR = -1,
     OPT_EOF = 0,
     OPT_FAIL,
+    OPT_TEST_PROV,
     OPT_TEST_ENUM
 } OPTION_CHOICE;
 
@@ -186,6 +237,8 @@ const OPTIONS *test_get_options(void)
     static const OPTIONS test_options[] = {
         OPT_TEST_OPTIONS_WITH_EXTRA_USAGE("conf_file\n"),
         { "f", OPT_FAIL, '-', "A failure is expected" },
+        { "providers", OPT_TEST_PROV, '-',
+          "Test for activated default and legacy providers"},
         { NULL }
     };
     return test_options;
@@ -193,7 +246,7 @@ const OPTIONS *test_get_options(void)
 
 int setup_tests(void)
 {
-    const char *conf_file;
+    char *conf_file = NULL;
     OPTION_CHOICE o;
 
     if (!TEST_ptr(conf = NCONF_new(NULL)))
@@ -204,6 +257,8 @@ int setup_tests(void)
         case OPT_FAIL:
             expect_failure = 1;
             break;
+        case OPT_TEST_PROV:
+            test_providers = 1;
         case OPT_TEST_CASES:
             break;
         default:
@@ -222,16 +277,24 @@ int setup_tests(void)
      * For this test we need to chdir as we use relative
      * path names in the config files.
      */
-    change_path(conf_file);
+    rel_conf_file = change_path(conf_file);
+    if (!TEST_ptr(rel_conf_file)) {
+        TEST_note("Unable to change path");
+        return 0;
+    }
 
     ADD_TEST(test_load_config);
     ADD_TEST(test_check_null_numbers);
     ADD_TEST(test_check_overflow);
+    if (test_providers != 0)
+        ADD_TEST(test_available_providers);
+
     return 1;
 }
 
 void cleanup_tests(void)
 {
+    OPENSSL_free(rel_conf_file);
     BIO_vfree(in);
     NCONF_free(conf);
     CONF_modules_unload(1);

test/recipes/90-test_includes.t

@@ -2,8 +2,9 @@
 
 use strict;
 use warnings;
-use OpenSSL::Test qw/:DEFAULT data_file/;
+use OpenSSL::Test qw/:DEFAULT bldtop_dir data_file/;
 use OpenSSL::Test::Utils;
+use Cwd qw(abs_path);
 
 setup("test_includes");
 
@@ -13,9 +14,11 @@ plan skip_all => "test_includes doesn't work without posix-io"
 delete $ENV{OPENSSL_CONF_INCLUDE};
 
 plan tests =>                   # The number of tests being performed
-    6
+    7
     + ($^O eq "VMS" ? 2 : 0);
 
+$ENV{OPENSSL_MODULES} = abs_path(bldtop_dir("providers"));
+
 ok(run(test(["conf_include_test", data_file("includes.cnf")])), "test directory includes");
 ok(run(test(["conf_include_test", data_file("includes-file.cnf")])), "test file includes");
 ok(run(test(["conf_include_test", data_file("includes-eq.cnf")])), "test includes with equal character");
@@ -28,3 +31,10 @@ if ($^O eq "VMS") {
 }
 ok(run(test(["conf_include_test", "-f", data_file("includes-broken.cnf")])), "test broken includes");
 ok(run(test(["conf_include_test",  "-f", data_file("incdir.cnf")])), "test includedir");
+
+SKIP: {
+    skip "Skipping legacy test", 1
+        if disabled("legacy");
+    ok(run(test(["conf_include_test", "-providers", data_file("includes-prov-dir.cnf")])),
+       "test directory includes with provider configs");
+}

test/recipes/90-test_includes_data/conf-includes-prov/inc-default.cnf

@@ -0,0 +1,5 @@
+[provider_sect]
+default = default_sect
+
+[default_sect]
+activate = 1

test/recipes/90-test_includes_data/conf-includes-prov/inc-legacy.cnf

@@ -0,0 +1,5 @@
+[provider_sect]
+legacy = legacy_sect
+
+[legacy_sect]
+activate = 1

test/recipes/90-test_includes_data/includes-prov-dir.cnf

@@ -0,0 +1,17 @@
+#
+# Example configuration file using includes to load providers.
+#
+
+openssl_conf = openssl_init
+
+[openssl_init]
+providers = provider_sect
+
+[provider_sect]
+null = null_sect
+
+[null_sect]
+activate = 1
+
+.include conf-includes
+.include conf-includes-prov