87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
|
// 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.
|
||
|
|
|
||
|
|
#include "base/process/process_info.h"
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <memory>
|
||
|
|
|
||
|
|
#include "base/logging.h"
|
||
|
|
#include "base/memory/ptr_util.h"
|
||
|
|
#include "base/time/time.h"
|
||
|
|
#include "base/win/scoped_handle.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
HANDLE GetCurrentProcessToken() {
|
||
|
|
HANDLE process_token;
|
||
|
|
OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &process_token);
|
||
|
|
DCHECK(process_token != NULL && process_token != INVALID_HANDLE_VALUE);
|
||
|
|
return process_token;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
IntegrityLevel GetCurrentProcessIntegrityLevel() {
|
||
|
|
HANDLE process_token(GetCurrentProcessToken());
|
||
|
|
|
||
|
|
DWORD token_info_length = 0;
|
||
|
|
if (::GetTokenInformation(process_token, TokenIntegrityLevel, nullptr, 0,
|
||
|
|
&token_info_length) ||
|
||
|
|
::GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
|
||
|
|
NOTREACHED();
|
||
|
|
return INTEGRITY_UNKNOWN;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto token_label_bytes = std::make_unique<char[]>(token_info_length);
|
||
|
|
TOKEN_MANDATORY_LABEL* token_label =
|
||
|
|
reinterpret_cast<TOKEN_MANDATORY_LABEL*>(token_label_bytes.get());
|
||
|
|
if (!::GetTokenInformation(process_token, TokenIntegrityLevel, token_label,
|
||
|
|
token_info_length, &token_info_length)) {
|
||
|
|
NOTREACHED();
|
||
|
|
return INTEGRITY_UNKNOWN;
|
||
|
|
}
|
||
|
|
|
||
|
|
DWORD integrity_level = *::GetSidSubAuthority(
|
||
|
|
token_label->Label.Sid,
|
||
|
|
static_cast<DWORD>(*::GetSidSubAuthorityCount(token_label->Label.Sid) -
|
||
|
|
1));
|
||
|
|
|
||
|
|
if (integrity_level < SECURITY_MANDATORY_LOW_RID)
|
||
|
|
return UNTRUSTED_INTEGRITY;
|
||
|
|
|
||
|
|
if (integrity_level < SECURITY_MANDATORY_MEDIUM_RID)
|
||
|
|
return LOW_INTEGRITY;
|
||
|
|
|
||
|
|
if (integrity_level >= SECURITY_MANDATORY_MEDIUM_RID &&
|
||
|
|
integrity_level < SECURITY_MANDATORY_HIGH_RID) {
|
||
|
|
return MEDIUM_INTEGRITY;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (integrity_level >= SECURITY_MANDATORY_HIGH_RID)
|
||
|
|
return HIGH_INTEGRITY;
|
||
|
|
|
||
|
|
NOTREACHED();
|
||
|
|
return INTEGRITY_UNKNOWN;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool IsCurrentProcessElevated() {
|
||
|
|
HANDLE process_token(GetCurrentProcessToken());
|
||
|
|
|
||
|
|
// Unlike TOKEN_ELEVATION_TYPE which returns TokenElevationTypeDefault when
|
||
|
|
// UAC is turned off, TOKEN_ELEVATION returns whether the process is elevated.
|
||
|
|
DWORD size;
|
||
|
|
TOKEN_ELEVATION elevation;
|
||
|
|
if (!GetTokenInformation(process_token, TokenElevation, &elevation,
|
||
|
|
sizeof(elevation), &size)) {
|
||
|
|
PLOG(ERROR) << "GetTokenInformation() failed";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return !!elevation.TokenIsElevated;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace base
|