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Diffstat (limited to 'chromium/rlz/win/lib/lib_mutex.cc')
-rw-r--r--chromium/rlz/win/lib/lib_mutex.cc67
1 files changed, 0 insertions, 67 deletions
diff --git a/chromium/rlz/win/lib/lib_mutex.cc b/chromium/rlz/win/lib/lib_mutex.cc
deleted file mode 100644
index 73dfaded0f7..00000000000
--- a/chromium/rlz/win/lib/lib_mutex.cc
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2012 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.
-//
-// Mutex to guarantee serialization of RLZ key accesses.
-
-#include "rlz/win/lib/lib_mutex.h"
-
-#include <windows.h>
-#include <Sddl.h> // For SDDL_REVISION_1, ConvertStringSecurityDescript..
-#include <Aclapi.h> // For SetSecurityInfo
-
-#include "base/logging.h"
-#include "base/win/windows_version.h"
-
-namespace {
-
-const wchar_t kMutexName[] = L"{A946A6A9-917E-4949-B9BC-6BADA8C7FD63}";
-
-} // namespace anonymous
-
-namespace rlz_lib {
-
-// Needed to allow synchronization across integrity levels.
-static bool SetObjectToLowIntegrity(HANDLE object,
- SE_OBJECT_TYPE type = SE_KERNEL_OBJECT) {
- if (base::win::GetVersion() < base::win::VERSION_VISTA)
- return true; // Not needed on XP.
-
- // The LABEL_SECURITY_INFORMATION SDDL SACL to be set for low integrity.
- static const wchar_t kLowIntegritySddlSacl[] = L"S:(ML;;NW;;;LW)";
-
- bool result = false;
- DWORD error = ERROR_SUCCESS;
- PSECURITY_DESCRIPTOR security_descriptor = NULL;
- PACL sacl = NULL;
- BOOL sacl_present = FALSE;
- BOOL sacl_defaulted = FALSE;
-
- if (ConvertStringSecurityDescriptorToSecurityDescriptorW(
- kLowIntegritySddlSacl, SDDL_REVISION_1, &security_descriptor, NULL)) {
- if (GetSecurityDescriptorSacl(security_descriptor, &sacl_present,
- &sacl, &sacl_defaulted)) {
- error = SetSecurityInfo(object, type, LABEL_SECURITY_INFORMATION,
- NULL, NULL, NULL, sacl);
- result = (ERROR_SUCCESS == error);
- }
- LocalFree(security_descriptor);
- }
-
- return result;
-}
-
-LibMutex::LibMutex() : acquired_(false), mutex_(NULL) {
- mutex_ = CreateMutex(NULL, false, kMutexName);
- bool result = SetObjectToLowIntegrity(mutex_);
- if (result) {
- acquired_ = (WAIT_OBJECT_0 == WaitForSingleObject(mutex_, 5000L));
- }
-}
-
-LibMutex::~LibMutex() {
- if (acquired_) ReleaseMutex(mutex_);
- CloseHandle(mutex_);
-}
-
-} // namespace rlz_lib