1 //
2 //
3 // Copyright 2018 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <stdio.h>
20 #include <string.h>
21
22 #include <gtest/gtest.h>
23
24 #include <grpc/support/alloc.h>
25 #include <grpc/support/log.h>
26 #include <grpc/support/port_platform.h>
27
28 #include "src/core/lib/gpr/tmpfile.h"
29 #include "src/core/lib/gprpp/crash.h"
30 #include "src/core/lib/security/credentials/alts/check_gcp_environment.h"
31
32 #ifdef GPR_WINDOWS
33
34 namespace grpc_core {
35 namespace internal {
36
37 bool check_windows_registry_product_name(HKEY root_key,
38 const char* reg_key_path,
39 const char* reg_key_name);
40
41 } // namespace internal
42 } // namespace grpc_core
43
check_bios_data_windows_test(const char * data)44 static bool check_bios_data_windows_test(const char* data) {
45 char const reg_key_path[] = "SYSTEM\\HardwareConfig\\Current\\";
46 char const reg_key_name[] = "grpcTestValueName";
47 // Modify the registry for the current user to contain the
48 // test value. We cannot use the system registry because the
49 // user may not have privileges to change it.
50 auto rc = RegSetKeyValueA(HKEY_CURRENT_USER, reg_key_path, reg_key_name,
51 REG_SZ, reinterpret_cast<const BYTE*>(data),
52 static_cast<DWORD>(strlen(data)));
53 if (rc != 0) {
54 return false;
55 }
56
57 auto result = grpc_core::internal::check_windows_registry_product_name(
58 HKEY_CURRENT_USER, reg_key_path, reg_key_name);
59
60 (void)RegDeleteKeyValueA(HKEY_CURRENT_USER, reg_key_path, reg_key_name);
61
62 return result;
63 }
64
TEST(CheckGcpEnvironmentWindowsTest,GcpEnvironmentCheckSuccess)65 TEST(CheckGcpEnvironmentWindowsTest, GcpEnvironmentCheckSuccess) {
66 // This is the only value observed in production.
67 ASSERT_TRUE(check_bios_data_windows_test("Google Compute Engine"));
68 // Be generous and accept other values that were accepted by the previous
69 // implementation.
70 ASSERT_TRUE(check_bios_data_windows_test("Google"));
71 ASSERT_TRUE(check_bios_data_windows_test("Google\n"));
72 ASSERT_TRUE(check_bios_data_windows_test("Google\r"));
73 ASSERT_TRUE(check_bios_data_windows_test("Google\r\n"));
74 ASSERT_TRUE(check_bios_data_windows_test(" Google \r\n"));
75 ASSERT_TRUE(check_bios_data_windows_test(" \t\t Google\r\n"));
76 ASSERT_TRUE(check_bios_data_windows_test(" \t\t Google\t\t \r\n"));
77 }
78
TEST(CheckGcpEnvironmentWindowsTest,GcpEnvironmentCheckFailure)79 TEST(CheckGcpEnvironmentWindowsTest, GcpEnvironmentCheckFailure) {
80 ASSERT_FALSE(check_bios_data_windows_test("\t\tAmazon\n"));
81 ASSERT_FALSE(check_bios_data_windows_test(" Amazon\r\n"));
82 }
83
84 #endif // GPR_WINDOWS
85
main(int argc,char ** argv)86 int main(int argc, char** argv) {
87 ::testing::InitGoogleTest(&argc, argv);
88 return RUN_ALL_TESTS();
89 }
90