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diff --git a/p11-kit/test-modules.c b/p11-kit/test-modules.c
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+/*
+ * Copyright (c) 2012 Red Hat Inc
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions of source code must retain the above
+ *       copyright notice, this list of conditions and the
+ *       following disclaimer.
+ *     * Redistributions in binary form must reproduce the
+ *       above copyright notice, this list of conditions and
+ *       the following disclaimer in the documentation and/or
+ *       other materials provided with the distribution.
+ *     * The names of contributors to this software may not be
+ *       used to endorse or promote products derived from this
+ *       software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * Author: Stef Walter <stefw@redhat.com>
+ */
+
+#include "config.h"
+#include "test.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "debug.h"
+#include "library.h"
+#include "p11-kit.h"
+#include "private.h"
+#include "dict.h"
+
+static CK_FUNCTION_LIST_PTR_PTR
+initialize_and_get_modules (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+
+	modules = p11_kit_modules_load_and_initialize (0);
+	assert (modules != NULL && modules[0] != NULL);
+
+	return modules;
+}
+
+static void
+finalize_and_free_modules (CK_FUNCTION_LIST_PTR_PTR modules)
+{
+	p11_kit_modules_finalize_and_release (modules);
+}
+
+static void
+test_no_duplicates (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+	p11_dict *paths;
+	p11_dict *funcs;
+	char *path;
+	int i;
+
+	modules = initialize_and_get_modules ();
+	paths = p11_dict_new (p11_dict_str_hash, p11_dict_str_equal, NULL, NULL);
+	funcs = p11_dict_new (p11_dict_direct_hash, p11_dict_direct_equal, NULL, NULL);
+
+	/* The loaded modules should not contain duplicates */
+	for (i = 0; modules[i] != NULL; i++) {
+		path = p11_kit_config_option (modules[i], "module");
+
+		if (p11_dict_get (funcs, modules[i]))
+			assert_fail ("found duplicate function list pointer", NULL);
+		if (p11_dict_get (paths, path))
+			assert_fail ("found duplicate path name", NULL);
+
+		if (!p11_dict_set (funcs, modules[i], ""))
+			assert_not_reached ();
+		if (!p11_dict_set (paths, path, ""))
+			assert_not_reached ();
+
+		free (path);
+	}
+
+	p11_dict_free (paths);
+	p11_dict_free (funcs);
+	finalize_and_free_modules (modules);
+}
+
+static CK_FUNCTION_LIST_PTR
+lookup_module_with_name (CK_FUNCTION_LIST_PTR_PTR modules,
+                         const char *name)
+{
+	CK_FUNCTION_LIST_PTR match = NULL;
+	CK_FUNCTION_LIST_PTR module;
+	char *module_name;
+	int i;
+
+	for (i = 0; match == NULL && modules[i] != NULL; i++) {
+		module_name = p11_kit_module_get_name (modules[i]);
+		assert_ptr_not_null (module_name);
+		if (strcmp (module_name, name) == 0)
+			match = modules[i];
+		free (module_name);
+	}
+
+	/*
+	 * As a side effect, we should check that the results of this function
+	 * matches the above search.
+	 */
+	module = p11_kit_module_for_name (modules, name);
+	if (module != match)
+		assert_fail ("different result from p11_kit_module_for_name ()", NULL);
+
+	return match;
+}
+
+static void
+test_disable (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+
+	/*
+	 * The module four should be present, as we don't match any prognames
+	 * that it has disabled.
+	 */
+
+	modules = initialize_and_get_modules ();
+	assert (lookup_module_with_name (modules, "four") != NULL);
+	finalize_and_free_modules (modules);
+
+	/*
+	 * The module two shouldn't have been loaded, because in its config
+	 * file we have:
+	 *
+	 * disable-in: test-disable
+	 */
+
+	p11_kit_set_progname ("test-disable");
+
+	modules = initialize_and_get_modules ();
+	assert (lookup_module_with_name (modules, "four") == NULL);
+	finalize_and_free_modules (modules);
+
+	p11_kit_set_progname (NULL);
+}
+
+static void
+test_disable_later (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+
+	/*
+	 * The module two shouldn't be matched, because in its config
+	 * file we have:
+	 *
+	 * disable-in: test-disable
+	 */
+
+	p11_kit_set_progname ("test-disable");
+
+	modules = p11_kit_modules_load_and_initialize (0);
+	assert (modules != NULL && modules[0] != NULL);
+
+	assert (lookup_module_with_name (modules, "two") == NULL);
+	finalize_and_free_modules (modules);
+
+	p11_kit_set_progname (NULL);
+}
+
+static void
+test_enable (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+
+	/*
+	 * The module three should not be present, as we don't match the current
+	 * program.
+	 */
+
+	modules = initialize_and_get_modules ();
+	assert (lookup_module_with_name (modules, "three") == NULL);
+	finalize_and_free_modules (modules);
+
+	/*
+	 * The module three should be loaded here , because in its config
+	 * file we have:
+	 *
+	 * enable-in: test-enable
+	 */
+
+	p11_kit_set_progname ("test-enable");
+
+	modules = initialize_and_get_modules ();
+	assert (lookup_module_with_name (modules, "three") != NULL);
+	finalize_and_free_modules (modules);
+
+	p11_kit_set_progname (NULL);
+}
+
+static void
+test_priority (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+	char *name;
+	int i;
+
+	/*
+	 * The expected order.
+	 * - four is marked with a priority of 4, the highest therefore first
+	 * - three is marked with a priority of 3, next highest
+	 * - one and two do not have priority marked, so they default to zero
+	 *   and fallback to sorting alphabetically. 'o' comes before 't'
+	 */
+
+	const char *expected[] = { "four", "three", "one", "two.badname" };
+
+	/* This enables module three */
+	p11_kit_set_progname ("test-enable");
+
+	modules = initialize_and_get_modules ();
+
+	/* The loaded modules should not contain duplicates */
+	for (i = 0; modules[i] != NULL; i++) {
+		name = p11_kit_module_get_name (modules[i]);
+		assert_ptr_not_null (name);
+
+		/* Either one of these can be loaded, as this is a duplicate module */
+		if (strcmp (name, "two-duplicate") == 0) {
+			free (name);
+			name = strdup ("two.badname");
+		}
+
+		assert_str_eq (expected[i], name);
+		free (name);
+	}
+
+	assert_num_eq (4, i);
+	finalize_and_free_modules (modules);
+}
+
+static void
+test_module_name (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+	CK_FUNCTION_LIST_PTR module;
+	char *name;
+
+	/*
+	 * The module three should not be present, as we don't match the current
+	 * program.
+	 */
+
+	modules = initialize_and_get_modules ();
+
+	module = p11_kit_module_for_name (modules, "one");
+	assert_ptr_not_null (module);
+	name = p11_kit_module_get_name (module);
+	assert_str_eq ("one", name);
+	free (name);
+
+	module = p11_kit_module_for_name (modules, "invalid");
+	assert_ptr_eq (NULL, module);
+
+	module = p11_kit_module_for_name (NULL, "one");
+	assert_ptr_eq (NULL, module);
+
+	finalize_and_free_modules (modules);
+}
+
+static void
+test_module_flags (void)
+{
+	CK_FUNCTION_LIST **modules;
+	CK_FUNCTION_LIST **unmanaged;
+	int flags;
+
+	/*
+	 * The module three should not be present, as we don't match the current
+	 * program.
+	 */
+
+	modules = initialize_and_get_modules ();
+
+	flags = p11_kit_module_get_flags (modules[0]);
+	assert_num_eq (0, flags);
+
+	unmanaged = p11_kit_modules_load (NULL, P11_KIT_MODULE_UNMANAGED);
+	assert (unmanaged != NULL && unmanaged[0] != NULL);
+
+	flags = p11_kit_module_get_flags (unmanaged[0]);
+	assert_num_eq (P11_KIT_MODULE_UNMANAGED, flags);
+
+	finalize_and_free_modules (modules);
+	p11_kit_modules_release (unmanaged);
+}
+
+static void
+test_module_trusted_only (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+	char *name;
+
+	modules = p11_kit_modules_load_and_initialize (P11_KIT_MODULE_TRUSTED);
+	assert_ptr_not_null (modules);
+	assert_ptr_not_null (modules[0]);
+	assert (modules[1] == NULL);
+
+	name = p11_kit_module_get_name (modules[0]);
+	assert_str_eq (name, "one");
+	free (name);
+
+	assert_num_eq (p11_kit_module_get_flags (modules[0]), P11_KIT_MODULE_TRUSTED);
+
+	finalize_and_free_modules (modules);
+}
+
+static void
+test_module_trust_flags (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+	char *name;
+	int flags;
+	int i;
+
+	modules = initialize_and_get_modules ();
+	assert_ptr_not_null (modules);
+
+	for (i = 0; modules[i] != NULL; i++) {
+		name = p11_kit_module_get_name (modules[i]);
+		assert_ptr_not_null (name);
+
+		flags = p11_kit_module_get_flags (modules[i]);
+		if (strcmp (name, "one") == 0) {
+			assert_num_eq (flags, P11_KIT_MODULE_TRUSTED);
+		} else {
+			assert_num_eq (flags, 0);
+		}
+
+		free (name);
+	}
+
+	finalize_and_free_modules (modules);
+}
+
+static void
+test_config_option (void)
+{
+	CK_FUNCTION_LIST_PTR_PTR modules;
+	CK_FUNCTION_LIST_PTR module;
+	char *value;
+
+	/*
+	 * The module three should not be present, as we don't match the current
+	 * program.
+	 */
+
+	modules = initialize_and_get_modules ();
+
+	value = p11_kit_config_option (NULL, "new");
+	assert_str_eq ("world", value);
+	free (value);
+
+	module = p11_kit_module_for_name (modules, "one");
+	assert_ptr_not_null (module);
+
+	value = p11_kit_config_option (module, "setting");
+	assert_str_eq ("user1", value);
+	free (value);
+
+	value = p11_kit_config_option (NULL, "invalid");
+	assert_ptr_eq (NULL, value);
+
+	value = p11_kit_config_option (module, "invalid");
+	assert_ptr_eq (NULL, value);
+
+	/* Invalid but non-NULL module pointer */
+	value = p11_kit_config_option (module + 1, "setting");
+	assert_ptr_eq (NULL, value);
+
+	finalize_and_free_modules (modules);
+}
+
+int
+main (int argc,
+      char *argv[])
+{
+	p11_library_init ();
+
+	p11_test (test_no_duplicates, "/modules/test_no_duplicates");
+	p11_test (test_disable, "/modules/test_disable");
+	p11_test (test_disable_later, "/modules/test_disable_later");
+	p11_test (test_enable, "/modules/test_enable");
+	p11_test (test_priority, "/modules/test_priority");
+	p11_test (test_module_name, "/modules/test_module_name");
+	p11_test (test_module_flags, "/modules/test_module_flags");
+	p11_test (test_config_option, "/modules/test_config_option");
+	p11_test (test_module_trusted_only, "/modules/trusted-only");
+	p11_test (test_module_trust_flags, "/modules/trust-flags");
+
+	p11_kit_be_quiet ();
+
+	return p11_test_run (argc, argv);
+}