1 files changed, 153 insertions, 0 deletions
diff --git a/test/unit_tests/security_tests/ut_is_offer_allowed.cpp b/test/unit_tests/security_tests/ut_is_offer_allowed.cpp
new file mode 100644
index 0000000..f60d4ed
--- /dev/null
+++ b/test/unit_tests/security_tests/ut_is_offer_allowed.cpp
@@ -0,0 +1,153 @@
+// Copyright (C) 2022 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <memory>
+#include <gtest/gtest.h>
+#include "../../common/utility.hpp"
+namespace{
+
+vsomeip_v3::uid_t uid_1 = 4003016;
+vsomeip_v3::gid_t gid_1 = 4003016;
+vsomeip_v3::service_t service_1 = 0xf8c2;
+
+vsomeip_v3::service_t deny_service = 0x40;
+
+vsomeip_v3::instance_t instance = 0x03;
+vsomeip_v3::instance_t any_instance = 0xfffe;
+
+vsomeip_v3::uid_t invalid_uid = 1;
+vsomeip_v3::gid_t invalid_gid = 1;
+vsomeip_v3::uid_t ANY_UID = 0xFFFFFFFF;
+vsomeip_v3::gid_t ANY_GID = 0xFFFFFFFF;
+
+vsomeip_v3::gid_t deny_uid  = 9000;
+vsomeip_v3::gid_t deny_gid  = 9000;
+}
+
+TEST(is_offer_allowed, check_no_policies_loaded)
+{
+    std::unique_ptr<vsomeip_v3::policy_manager_impl> security(new vsomeip_v3::policy_manager_impl);
+
+    ASSERT_FALSE(security->is_enabled());
+
+    vsomeip_sec_client_t its_sec_client_invalid = utility::create_uds_client(invalid_uid, invalid_gid);
+
+    // no policies loaded -> is_offer_allowed must return true
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_invalid, service_1, instance));
+}
+
+TEST(is_offer_allowed, check_policies_loaded)
+{
+    std::unique_ptr<vsomeip_v3::policy_manager_impl> security(new vsomeip_v3::policy_manager_impl);
+
+    // force load of some policies
+    std::set<std::string> its_failed;
+    std::vector<vsomeip_v3::configuration_element> policy_elements;
+    std::vector<std::string> dir_skip;
+    utility::read_data(utility::get_all_files_in_dir(utility::get_policies_path(), dir_skip), policy_elements, its_failed);
+
+    // check if the load worked
+    ASSERT_TRUE(policy_elements.size() > 0);
+    ASSERT_TRUE(its_failed.size() == 0);
+
+    for (const auto &e : policy_elements)
+    {
+        security->load(e, false);
+    }
+
+    // check if the policies are loaded and check_credentials_ variable are true
+    ASSERT_TRUE(security->is_enabled());
+    ASSERT_FALSE(security->is_audit());
+
+    // create security clients
+    vsomeip_sec_client_t its_sec_client_valid = utility::create_uds_client(uid_1, gid_1);
+    vsomeip_sec_client_t its_sec_client_invalid = utility::create_uds_client(invalid_uid, invalid_gid);
+    vsomeip_sec_client_t its_sec_client_valid_uid_invalid_gid = utility::create_uds_client(uid_1, invalid_gid);
+    vsomeip_sec_client_t its_sec_client_invalid_uid_valid_gid = utility::create_uds_client(invalid_uid, gid_1);
+    vsomeip_sec_client_t its_sec_client_deny = utility::create_uds_client(deny_uid, deny_gid);
+    vsomeip_sec_client_t its_sec_client_any = utility::create_uds_client(ANY_UID, ANY_GID);
+
+    // valid credential for valid service / instance
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_valid, service_1, instance));
+
+    // request with the same credentials and service but with a different instance
+    // is_offer_allowed return true because it's define ANY_INSTANCE in the policy
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_valid, service_1, any_instance));
+
+    // invalid credential for the service / instance
+    EXPECT_FALSE(security->is_offer_allowed(&its_sec_client_invalid_uid_valid_gid, service_1, instance));
+    EXPECT_FALSE(security->is_offer_allowed(&its_sec_client_valid_uid_invalid_gid, service_1, instance));
+    EXPECT_FALSE(security->is_offer_allowed(&its_sec_client_invalid, service_1, instance));
+
+    // test deny offer
+    // deny client with credentials for the service
+    EXPECT_FALSE(security->is_offer_allowed(&its_sec_client_deny, deny_service, instance));
+    // credentials exists in deny policy, but not for that service
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_deny, service_1, instance));
+
+    // ANY_UID and ANY_GID
+    EXPECT_FALSE(security->is_offer_allowed(&its_sec_client_any, service_1, instance));
+}
+
+// is_offer_allowed with policies loaded but in audit mode
+// vsomeip's security implementation can be put in a so called 'Audit Mode' where
+// all security violations will be logged but allowed.
+// To activate the 'Audit Mode' the 'security' object has to be included in the
+// json file but the 'check_credentials' switch has to be set to false.
+
+TEST(is_offer_allowed, check_policies_loaded_in_audit_mode)
+{
+    std::unique_ptr<vsomeip_v3::policy_manager_impl> security(new vsomeip_v3::policy_manager_impl);
+
+    // create security clients
+    vsomeip_sec_client_t its_sec_client_valid = utility::create_uds_client(uid_1, gid_1);
+    vsomeip_sec_client_t its_sec_client_invalid = utility::create_uds_client(invalid_uid, invalid_gid);
+    vsomeip_sec_client_t its_sec_client_valid_uid_invalid_gid = utility::create_uds_client(uid_1, invalid_gid);
+    vsomeip_sec_client_t its_sec_client_invalid_uid_valid_gid = utility::create_uds_client(invalid_uid, gid_1);
+    vsomeip_sec_client_t its_sec_client_deny = utility::create_uds_client(deny_uid, deny_gid);
+    vsomeip_sec_client_t its_sec_client_any = utility::create_uds_client(ANY_UID, ANY_GID);
+
+    // force load of some policies
+    std::set<std::string> its_failed;
+    std::vector<vsomeip_v3::configuration_element> policy_elements;
+    std::vector<std::string> dir_skip;
+    utility::read_data(utility::get_all_files_in_dir(utility::get_policies_path(), dir_skip), policy_elements, its_failed);
+
+    // check if the load worked
+    ASSERT_TRUE(policy_elements.size() > 0);
+    ASSERT_TRUE(its_failed.size() == 0);
+
+    utility::force_check_credentials(policy_elements, "false");
+
+    for (const auto &e : policy_elements)
+    {
+        security->load(e, false);
+    }
+
+    // check if the policies are loaded and check_credentials_ variable are true
+    ASSERT_TRUE(security->is_enabled());
+    ASSERT_TRUE(security->is_audit());
+
+    // valid credential for valid service / instance
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_valid, service_1, instance));
+
+    // request with the same credentials and service but with a different instance
+    // is_offer_allowed return true because it's define ANY_INSTANCE in the policy
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_valid, service_1, any_instance));
+
+    // invalid credential for the service / instance
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_invalid_uid_valid_gid, service_1, instance));
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_valid_uid_invalid_gid, service_1, instance));
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_invalid, service_1, instance));
+
+    // test deny offer
+    // deny client with credentials for the service
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_deny, deny_service, instance));
+    // credentials exists in deny policy, but not for that service
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_deny, service_1, instance));
+
+    // ANY_UID and ANY_GID
+    EXPECT_TRUE(security->is_offer_allowed(&its_sec_client_any, service_1, instance));
+}