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// Windows/SecurityUtils.cpp
#include "StdAfx.h"
#include "SecurityUtils.h"
namespace NWindows {
namespace NSecurity {
/*
bool MyLookupAccountSid(LPCTSTR systemName, PSID sid,
CSysString &accountName, CSysString &domainName, PSID_NAME_USE sidNameUse)
{
DWORD accountNameSize = 0, domainNameSize = 0;
if (!::LookupAccountSid(systemName, sid,
accountName.GetBuf(0), &accountNameSize,
domainName.GetBuf(0), &domainNameSize, sidNameUse))
{
if (::GetLastError() != ERROR_INSUFFICIENT_BUFFER)
return false;
}
DWORD accountNameSize2 = accountNameSize, domainNameSize2 = domainNameSize;
bool result = BOOLToBool(::LookupAccountSid(systemName, sid,
accountName.GetBuf(accountNameSize), &accountNameSize2,
domainName.GetBuf(domainNameSize), &domainNameSize2, sidNameUse));
accountName.ReleaseBuf_CalcLen(accountNameSize);
domainName.ReleaseBuf_CalcLen(domainNameSize);
return result;
}
*/
static void SetLsaString(LPWSTR src, PLSA_UNICODE_STRING dest)
{
const size_t len = (size_t)wcslen(src);
dest->Length = (USHORT)(len * sizeof(WCHAR));
dest->MaximumLength = (USHORT)((len + 1) * sizeof(WCHAR));
dest->Buffer = src;
}
/*
static void MyLookupSids(CPolicy &policy, PSID ps)
{
LSA_REFERENCED_DOMAIN_LIST *referencedDomains = NULL;
LSA_TRANSLATED_NAME *names = NULL;
NTSTATUS nts = policy.LookupSids(1, &ps, &referencedDomains, &names);
int res = LsaNtStatusToWinError(nts);
LsaFreeMemory(referencedDomains);
LsaFreeMemory(names);
}
*/
extern "C" {
#ifndef _UNICODE
typedef BOOL (WINAPI * Func_LookupAccountNameW)(
LPCWSTR lpSystemName,
LPCWSTR lpAccountName,
PSID Sid,
LPDWORD cbSid,
LPWSTR ReferencedDomainName,
LPDWORD cchReferencedDomainName,
PSID_NAME_USE peUse
);
#endif
}
static PSID GetSid(LPWSTR accountName)
{
#ifndef _UNICODE
const HMODULE hModule = GetModuleHandle(TEXT("advapi32.dll"));
if (!hModule)
return NULL;
const
Func_LookupAccountNameW lookupAccountNameW = Z7_GET_PROC_ADDRESS(
Func_LookupAccountNameW, hModule,
"LookupAccountNameW");
if (!lookupAccountNameW)
return NULL;
#endif
DWORD sidLen = 0, domainLen = 0;
SID_NAME_USE sidNameUse;
if (!
#ifdef _UNICODE
::LookupAccountNameW
#else
lookupAccountNameW
#endif
(NULL, accountName, NULL, &sidLen, NULL, &domainLen, &sidNameUse))
{
if (::GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
const PSID pSid = ::HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sidLen);
LPWSTR domainName = (LPWSTR)::HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (domainLen + 1) * sizeof(WCHAR));
const BOOL res =
#ifdef _UNICODE
::LookupAccountNameW
#else
lookupAccountNameW
#endif
(NULL, accountName, pSid, &sidLen, domainName, &domainLen, &sidNameUse);
::HeapFree(GetProcessHeap(), 0, domainName);
if (res)
return pSid;
}
}
return NULL;
}
#define Z7_WIN_SE_LOCK_MEMORY_NAME L"SeLockMemoryPrivilege"
bool AddLockMemoryPrivilege()
{
CPolicy policy;
LSA_OBJECT_ATTRIBUTES attr;
attr.Length = sizeof(attr);
attr.RootDirectory = NULL;
attr.ObjectName = NULL;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (policy.Open(NULL, &attr,
// GENERIC_WRITE)
POLICY_ALL_ACCESS)
// STANDARD_RIGHTS_REQUIRED,
// GENERIC_READ | GENERIC_EXECUTE | POLICY_VIEW_LOCAL_INFORMATION | POLICY_LOOKUP_NAMES)
!= 0)
return false;
LSA_UNICODE_STRING userRights;
wchar_t s[128] = Z7_WIN_SE_LOCK_MEMORY_NAME;
SetLsaString(s, &userRights);
WCHAR userName[256 + 2];
DWORD size = 256;
if (!GetUserNameW(userName, &size))
return false;
const PSID psid = GetSid(userName);
if (psid == NULL)
return false;
bool res = false;
/*
PLSA_UNICODE_STRING userRightsArray;
ULONG countOfRights;
NTSTATUS status = policy.EnumerateAccountRights(psid, &userRightsArray, &countOfRights);
if (status != 0)
return false;
bool finded = false;
for (ULONG i = 0; i < countOfRights; i++)
{
LSA_UNICODE_STRING &ur = userRightsArray[i];
if (ur.Length != s.Length() * sizeof(WCHAR))
continue;
if (wcsncmp(ur.Buffer, s, s.Length()) != 0)
continue;
finded = true;
res = true;
break;
}
if (!finded)
*/
{
/*
LSA_ENUMERATION_INFORMATION *enums;
ULONG countReturned;
NTSTATUS status = policy.EnumerateAccountsWithUserRight(&userRights, &enums, &countReturned);
if (status == 0)
{
for (ULONG i = 0; i < countReturned; i++)
MyLookupSids(policy, enums[i].Sid);
if (enums)
::LsaFreeMemory(enums);
res = true;
}
*/
const NTSTATUS status = policy.AddAccountRights(psid, &userRights);
if (status == 0)
res = true;
// ULONG res = LsaNtStatusToWinError(status);
}
HeapFree(GetProcessHeap(), 0, psid);
return res;
}
}}
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