private IntPtr GetLsaPolicy(LSA_AccessPolicy access)
{
IntPtr LsaPolicyHandle;
uint ntsResult = LsaOpenPolicy(ref this.localsystem, ref this.objectAttributes, (uint)access, out LsaPolicyHandle);
uint winErrorCode = LsaNtStatusToWinError(ntsResult);
if (winErrorCode != 0)
{
throw new Exception("LsaOpenPolicy failed: " + winErrorCode);
}
return(LsaPolicyHandle);
}
public LSAPolicy(LSA_AccessPolicy access)
{
//initialize an empty unicode-string
string systemName = null;
//these attributes are not used, but LsaOpenPolicy wants them to exist
// (MSDN: "the structure members are not used, initalize them to NULL or zero")
var objectAttributes = new LSA_OBJECT_ATTRIBUTES();
// objectAttributes.Length = 0;
// objectAttributes.RootDirectory = IntPtr.Zero;
// objectAttributes.Attributes = 0;
// objectAttributes.SecurityDescriptor = IntPtr.Zero;
// objectAttributes.SecurityQualityOfService = IntPtr.Zero;
//
//get a policy handle
var resultPolicy = LsaOpenPolicy(ref systemName, ref objectAttributes, (int)access, out _policy);
var winErrorCode = LsaNtStatusToWinError(resultPolicy);
if (winErrorCode != 0)
{
throw new Win32Exception(winErrorCode, "OpenPolicy failed: " + winErrorCode);
}
}
