private LSAPR_SID_ENUM_BUFFER Marshal_LSAPR_SID_ENUM_BUFFER(SecurityIdentifier[] SidEnumBuffer, List <GCHandle> HandleToFree)
{
LSAPR_SID_ENUM_BUFFER output = new LSAPR_SID_ENUM_BUFFER();
output.Entries = (UInt32)SidEnumBuffer.Length;
IntPtr[] sidPtr = new IntPtr[SidEnumBuffer.Length];
for (int i = 0; i < SidEnumBuffer.Length; i++)
{
byte[] sid = new byte[SidEnumBuffer[i].BinaryLength];
SidEnumBuffer[i].GetBinaryForm(sid, 0);
GCHandle handlesid = GCHandle.Alloc(sid, GCHandleType.Pinned);
HandleToFree.Add(handlesid);
sidPtr[i] = handlesid.AddrOfPinnedObject();
}
GCHandle handle = GCHandle.Alloc(sidPtr, GCHandleType.Pinned);
HandleToFree.Add(handle);
output.SidInfo = handle.AddrOfPinnedObject();
return(output);
}
public Int32 LsarLookupSids(IntPtr PolicyHandle, SecurityIdentifier[] SidEnumBuffer, out LSA_LOOKUP_RESULT[] LookupResult, UInt32 LookupLevel, out UInt32 MappedCount)
{
List <GCHandle> HandleToFree = new List <GCHandle>();
IntPtr result = IntPtr.Zero;
LookupResult = null;
MappedCount = 0;
try
{
IntPtr IntPtrReferencedDomains = IntPtr.Zero;
LSAPR_TRANSLATED_NAMES TranslatedNames = new LSAPR_TRANSLATED_NAMES();
GCHandle handleTranslatedNames = GCHandle.Alloc(TranslatedNames, GCHandleType.Pinned);
// translatedNamesValuePointer points to a copy of TranslatedNames
IntPtr IntPtrTranslatedNames = handleTranslatedNames.AddrOfPinnedObject();
HandleToFree.Add(handleTranslatedNames);
LSAPR_SID_ENUM_BUFFER enumBuffer = Marshal_LSAPR_SID_ENUM_BUFFER(SidEnumBuffer, HandleToFree);
if (IntPtr.Size == 8)
{
result = NativeMethods.NdrClientCall2x64(GetStubHandle(), GetProcStringHandle(522), PolicyHandle, enumBuffer, out IntPtrReferencedDomains, IntPtrTranslatedNames, LookupLevel, out MappedCount);
}
else
{
GCHandle handle1 = GCHandle.Alloc(enumBuffer, GCHandleType.Pinned);
IntPtr tempValuePointer1 = handle1.AddrOfPinnedObject();
IntPtr tempValue2 = IntPtr.Zero;
GCHandle handle2 = GCHandle.Alloc(tempValue2, GCHandleType.Pinned);
IntPtr tempValuePointer2 = handle2.AddrOfPinnedObject();
IntPtr tempValue4 = IntPtr.Zero;
GCHandle handle4 = GCHandle.Alloc(tempValue4, GCHandleType.Pinned);
IntPtr tempValuePointer4 = handle4.AddrOfPinnedObject();
try
{
result = CallNdrClientCall2x86(492, PolicyHandle, tempValuePointer1, tempValuePointer2, IntPtrTranslatedNames, new IntPtr(LookupLevel), tempValuePointer4);
// each pinvoke work on a copy of the arguments (without an out specifier)
// get back the data
IntPtrReferencedDomains = Marshal.ReadIntPtr(tempValuePointer2);
MappedCount = (UInt32)Marshal.ReadInt32(tempValuePointer4);
}
finally
{
handle1.Free();
handle2.Free();
handle4.Free();
}
}
if (result == IntPtr.Zero || result == new IntPtr(0x00000107))
{
LookupResult = Marshal_LsarLookupSids_Output(IntPtrReferencedDomains, IntPtrTranslatedNames);
}
}
catch (SEHException)
{
Trace.WriteLine("LsarLookupSids failed 0x" + Marshal.GetExceptionCode().ToString("x"));
return(Marshal.GetExceptionCode());
}
finally
{
foreach (GCHandle handle in HandleToFree)
{
handle.Free();
}
}
return((int)result.ToInt64());
}
