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/*
KeePassLibN
Copyright (C) 2003-2025 Dominik Reichl <dominik.reichl@t-online.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "AppUtil.h"
#include <AclApi.h>
#include <TChar.h>
using namespace std;
static int g_iIsWine = 0;
static void AuxProtectProcessWithDaclCore(HANDLE hProcess, HANDLE hToken)
{
DWORD cbTokenUser = 0;
GetTokenInformation(hToken, TOKEN_INFORMATION_CLASS::TokenUser, nullptr, 0,
&cbTokenUser);
if(cbTokenUser == 0) { assert(false); return; }
vector<uint8_t> vTokenUser(cbTokenUser, 0);
PTOKEN_USER pTokenUser = (PTOKEN_USER)vTokenUser.data();
if(GetTokenInformation(hToken, TOKEN_INFORMATION_CLASS::TokenUser, pTokenUser,
cbTokenUser, &cbTokenUser) == FALSE)
{
assert(false);
return;
}
PSID pSid = pTokenUser->User.Sid;
if((pSid == nullptr) || (IsValidSid(pSid) == FALSE)) { assert(false); return; }
const DWORD cbAcl = sizeof(ACL) + (sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD)) +
GetLengthSid(pSid);
vector<uint8_t> vAcl(cbAcl, 0);
PACL pAcl = (PACL)vAcl.data();
if(InitializeAcl(pAcl, cbAcl, ACL_REVISION) == FALSE) { assert(false); return; }
if(AddAccessAllowedAce(pAcl, ACL_REVISION, SYNCHRONIZE |
PROCESS_QUERY_LIMITED_INFORMATION | PROCESS_TERMINATE, pSid) == FALSE)
{
assert(false);
return;
}
if(SetSecurityInfo(hProcess, SE_KERNEL_OBJECT, DACL_SECURITY_INFORMATION,
nullptr, nullptr, pAcl, nullptr) != ERROR_SUCCESS)
{
assert(false);
}
}
KPL_API void AuxProtectProcessWithDacl()
{
HANDLE hProcess = GetCurrentProcess();
HANDLE hToken = NULL;
if(OpenProcessToken(hProcess, TOKEN_QUERY, &hToken) != FALSE)
{
AuxProtectProcessWithDaclCore(hProcess, hToken);
if(CloseHandle(hToken) == FALSE) { assert(false); }
}
else { assert(false); }
}
bool AuxIsWine()
{
if(g_iIsWine == 0)
{
// https://gitlab.winehq.org/wine/wine/-/wikis/Developer-FAQ#how-can-i-detect-wine
HMODULE h = LoadLibrary(_T("NTDLL.dll"));
if(h != NULL)
{
g_iIsWine = ((GetProcAddress(h, "wine_get_version") != NULL) ? 1 : -1);
FreeLibrary(h);
}
else { assert(false); g_iIsWine = -1; }
}
return (g_iIsWine > 0);
}
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