Windows sbox: Warmup locales before sandbox lockdown (and tests)

sandbox/win/src/lpc_policy_test.cc

Index: sandbox/win/src/lpc_policy_test.cc
diff --git a/sandbox/win/src/lpc_policy_test.cc b/sandbox/win/src/lpc_policy_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7308f96181bf56f869769f8081c830a9a2617b65
--- /dev/null
+++ b/sandbox/win/src/lpc_policy_test.cc
@@ -0,0 +1,86 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// These tests have been added to specifically tests issues arising from (A)LPC
+// lock down.
+
+#include <algorithm>
+#include <cctype>
+
+#include <windows.h>
+#include <winioctl.h>
+
+#include "base/win/windows_version.h"
+#include "sandbox/win/src/sandbox.h"
+#include "sandbox/win/src/sandbox_factory.h"
+#include "sandbox/win/src/sandbox_policy.h"
+#include "sandbox/win/tests/common/controller.h"
+#include "sandbox/win/tests/common/test_utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace sandbox {
+
+SBOX_TESTS_COMMAND int Lpc_GetUserDefaultLangID(int argc, wchar_t** argv) {
+  ::GetUserDefaultLangID();
+  return SBOX_TEST_SUCCEEDED;
+}
+
+TEST(LpcPolicyTest, GetUserDefaultLangID) {
+  TestRunner runner;
+  EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"Lpc_GetUserDefaultLangID"));
+}
+
+SBOX_TESTS_COMMAND int Lpc_GetUserDefaultLCID(int argc, wchar_t** argv) {
+  ::GetUserDefaultLCID();

[Will Harris, 2015/10/21 15:37:34]

was there a reason why these tests were abbreviated in the latest patchset?

+  return SBOX_TEST_SUCCEEDED;
+}
+
+TEST(LpcPolicyTest, GetUserDefaultLCID) {
+  TestRunner runner;
+  EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"Lpc_GetUserDefaultLCID"));
+}
+
+// GetUserDefaultLocaleName is not available on WIN XP.  So we'll
+// load it on-the-fly.
+const wchar_t kKernel32DllName[] = L"kernel32.dll";
+typedef int(WINAPI* GetUserDefaultLocaleNameFunction)(LPWSTR lpLocaleName,
+                                                      int cchLocaleName);
+
+SBOX_TESTS_COMMAND int Lpc_GetUserDefaultLocaleName(int argc, wchar_t** argv) {
+  static GetUserDefaultLocaleNameFunction GetUserDefaultLocaleName_func = NULL;
+  if (!GetUserDefaultLocaleName_func) {
+    // GetUserDefaultLocaleName is not available on WIN XP.  So we'll
+    // load it on-the-fly.
+    HMODULE kernel32_dll = ::GetModuleHandle(kKernel32DllName);
+    if (!kernel32_dll) {
+      return SBOX_TEST_FAILED;
+    }
+    GetUserDefaultLocaleName_func =
+        reinterpret_cast<GetUserDefaultLocaleNameFunction>(
+            GetProcAddress(kernel32_dll, "GetUserDefaultLocaleName"));
+    if (!GetUserDefaultLocaleName_func) {
+      return SBOX_TEST_FAILED;
+    }
+  }
+  wchar_t localeName[LOCALE_NAME_MAX_LENGTH] = {0};
+  int ret = GetUserDefaultLocaleName_func(
+      localeName, LOCALE_NAME_MAX_LENGTH * sizeof(wchar_t));
+  if (!ret) {
+    return SBOX_TEST_FAILED;
+  }
+  if (!wcsnlen(localeName, LOCALE_NAME_MAX_LENGTH)) {
+    return SBOX_TEST_FAILED;
+  }
+  return SBOX_TEST_SUCCEEDED;
+}
+
+TEST(LpcPolicyTest, GetUserDefaultLocaleName) {
+  if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
+    TestRunner runner;
+    EXPECT_EQ(SBOX_TEST_SUCCEEDED,
+              runner.RunTest(L"Lpc_GetUserDefaultLocaleName"));
+  }
+}
+
+}  // namespace sandbox