Add sandbox to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 177 insertions, 0 deletions

diff --git a/sandbox/src/service_resolver_unittest.cc b/sandbox/src/service_resolver_unittest.cc
new file mode 100644
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+++ b/sandbox/src/service_resolver_unittest.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// 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.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may 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.
+
+// This file contains unit tests for ServiceResolverThunk.
+
+#include "base/basictypes.h"
+#include "base/scoped_ptr.h"
+#include "sandbox/src/resolver.h"
+#include "sandbox/src/sandbox_utils.h"
+#include "sandbox/src/service_resolver.h"
+#include "sandbox/src/wow64.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+// This is the concrete resolver used to perform service-call type functions
+// inside ntdll.dll.
+template<typename T>
+class ResolverThunkTest : public T {
+ public:
+  // The service resolver needs a child process to write to.
+  explicit ResolverThunkTest(bool relaxed)
+      : T(::GetCurrentProcess(), relaxed) {}
+
+  // Sets the interception target to the desired address.
+  void set_target(void* target) {
+    fake_target_ = target;
+  }
+
+ protected:
+  // Overrides Resolver::Init
+  virtual NTSTATUS Init(const void* target_module,
+                        const void* interceptor_module,
+                        const char* target_name,
+                        const char* interceptor_name,
+                        const void* interceptor_entry_point,
+                        void* thunk_storage,
+                        uint32 storage_bytes) {
+    NTSTATUS ret = STATUS_SUCCESS;
+    ret = ResolverThunk::Init(target_module, interceptor_module, target_name,
+                              interceptor_name, interceptor_entry_point,
+                              thunk_storage, storage_bytes);
+    EXPECT_EQ(STATUS_SUCCESS, ret);
+
+    target_ = fake_target_;
+    ntdll_base_ = ::GetModuleHandle(L"ntdll.dll");
+    return ret;
+  };
+
+ private:
+  // Holds the address of the fake target.
+  void* fake_target_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(ResolverThunkTest);
+};
+
+typedef ResolverThunkTest<sandbox::Win2kResolverThunk> Win2kResolverTest;
+typedef ResolverThunkTest<sandbox::ServiceResolverThunk> WinXpResolverTest;
+typedef ResolverThunkTest<sandbox::Wow64ResolverThunk> Wow64ResolverTest;
+
+NTSTATUS PatchNtdll(const char* function, bool relaxed) {
+  HMODULE ntdll_base = ::GetModuleHandle(L"ntdll.dll");
+  EXPECT_TRUE(NULL != ntdll_base);
+
+  void* target = ::GetProcAddress(ntdll_base, function);
+  EXPECT_TRUE(NULL != target);
+  if (NULL == target)
+    return STATUS_UNSUCCESSFUL;
+
+  char service[50];
+  memcpy(service, target, sizeof(service));
+  sandbox::Wow64 WowHelper(NULL, ntdll_base);
+
+  sandbox::ServiceResolverThunk* resolver;
+  if (WowHelper.IsWow64())
+    resolver = new Wow64ResolverTest(relaxed);
+  else if (!sandbox::IsXPSP2OrLater())
+    resolver = new Win2kResolverTest(relaxed);
+  else
+    resolver = new WinXpResolverTest(relaxed);
+
+  static_cast<WinXpResolverTest*>(resolver)->set_target(service);
+
+  // Any pointer will do as an interception_entry_point
+  void* function_entry = resolver;
+  size_t thunk_size = resolver->GetThunkSize();
+  scoped_ptr<char> thunk(new char[thunk_size]);
+  uint32 used;
+
+  NTSTATUS ret = resolver->Setup(ntdll_base, NULL, function, NULL,
+                                 function_entry, thunk.get(), thunk_size,
+                                 &used);
+  if (NT_SUCCESS(ret)) {
+    EXPECT_EQ(thunk_size, used);
+    EXPECT_NE(0, memcmp(service, target, sizeof(service)));
+
+    if (relaxed) {
+      // It's already patched, let's patch again.
+      ret = resolver->Setup(ntdll_base, NULL, function, NULL, function_entry,
+                            thunk.get(), thunk_size, &used);
+    }
+  }
+
+  delete resolver;
+
+  return ret;
+}
+
+TEST(ServiceResolverTest, PatchesServices) {
+  NTSTATUS ret = PatchNtdll("NtClose", false);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtClose, last error: " << ::GetLastError();
+
+  ret = PatchNtdll("NtCreateFile", false);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtCreateFile, last error: " <<
+    ::GetLastError();
+
+  ret = PatchNtdll("NtCreateMutant", false);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtCreateMutant, last error: " <<
+    ::GetLastError();
+
+  ret = PatchNtdll("NtMapViewOfSection", false);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtMapViewOfSection, last error: " <<
+    ::GetLastError();
+}
+
+TEST(ServiceResolverTest, FailsIfNotService) {
+  NTSTATUS ret = PatchNtdll("RtlUlongByteSwap", false);
+  EXPECT_NE(STATUS_SUCCESS, ret);
+
+  ret = PatchNtdll("LdrLoadDll", false);
+  EXPECT_NE(STATUS_SUCCESS, ret);
+}
+
+TEST(ServiceResolverTest, PatchesPatchedServices) {
+  NTSTATUS ret = PatchNtdll("NtClose", true);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtClose, last error: " << ::GetLastError();
+
+  ret = PatchNtdll("NtCreateFile", true);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtCreateFile, last error: " <<
+    ::GetLastError();
+
+  ret = PatchNtdll("NtCreateMutant", true);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtCreateMutant, last error: " <<
+    ::GetLastError();
+
+  ret = PatchNtdll("NtMapViewOfSection", true);
+  EXPECT_EQ(STATUS_SUCCESS, ret) << "NtMapViewOfSection, last error: " <<
+    ::GetLastError();
+}
+
+}  // namespace