PiDevCfgEnumDeviceKeys

__int64 __fastcall PiDevCfgEnumDeviceKeys(
        __int64 a1,
        __int64 a2,
        __int64 a3,
        int a4,
        char a5,
        __int64 (__fastcall *a6)(__int64, __int64, int *, void *),
        __int64 a7){
  int *v7; 
  void *v8; 
  unsigned int v11; 
  unsigned int v12; 
  NTSTATUS v13; 
  int v15; 
  int DeviceRegProp; 
  __int64 v17; 
  __int64 v18; 
  __int64 v19; 
  int v20; 
  WCHAR v21; 
  const WCHAR *v22; 
  const wchar_t *v23; 
  NTSTATUS v24; 
  int v25; 
  int v26; 
  HANDLE Handle; 
  void *KeyHandle; 
  int v29; 
  int v30; 
  void *v31; 
  struct _UNICODE_STRING DestinationString; 
  __int64 v33; 
  __int64 v34; 
  __int64(__fastcall *v35)(__int64, __int64, int *, void *); 
  void *v36; 
  struct _OBJECT_ATTRIBUTES ObjectAttributes; 
  struct _OBJECT_ATTRIBUTES v38; 
  char v39[76]; 
  __int16 v40; 
  v7 = &dword_140985B9C;
  v35 = a6;
  v8 = (void *)a3;
  v33 = a7;
  v36 = (void *)a3;
  v34 = a1;
  v11 = 0;
  KeyHandle = 0i64;
  DestinationString = 0i64;
  Handle = 0i64;
  v12 = 0;
  v31 = 0i64;
  v29 = 0;
  v30 = 0;
  while( 1 )
  {
    if( (a4 & *(v7 - 1)) == 0 )
      goto LABEL_4;
    RtlInitUnicodeString(&DestinationString, *(PCWSTR *)(v7 - 3), a3);
    *(_QWORD *)&ObjectAttributes.Length = 48i64;
    KeyHandle = 0i64;
    *(_QWORD *)&ObjectAttributes.Attributes = 576i64;
    ObjectAttributes.ObjectName = &DestinationString;
    ObjectAttributes.RootDirectory = v8;
    *(_OWORD *)&ObjectAttributes.SecurityDescriptor = 0i64;
    v13 = ZwOpenKey(&KeyHandle, 0x20019u, &ObjectAttributes);
    if( v13 == -1073741772 )
      goto LABEL_4;
    if( v13 < 0 )
      goto LABEL_26;
    v15 = v7[1];
    if( v15 )
    {
      DeviceRegProp = CmOpenDeviceRegKey(
                        PiPnpRtlCtx,
                        *(const wchar_t **)(a2 + 8),
                        v15,
                        0,
                        983103,
                        a5,
                        (__int64)&Handle,
                        0i64);
      goto LABEL_14;
    }
    if( !CmIsStateSeparationEnabled() )
      goto LABEL_20;
    if( (_DWORD)v17 == 4 )
    {
      LODWORD(v17) = 4;
LABEL_20:
      v20 = PnpCtxOpenContextBaseKey(v18, v17, v19, 0xF003Fu, &Handle);
      goto LABEL_21;
    }
    if( (_DWORD)v17 == 6 )
      goto LABEL_36;
    v20 = PnpCtxOpenContextNodeBaseKey(v18, v17, v19, v17, v25, v26, &Handle);
LABEL_21:
    DeviceRegProp = v20;
    if( v20 < 0 )
      goto LABEL_14;
    if( *v7 == 7 )
    {
      v23 = *(const wchar_t **)(a2 + 8);
      v29 = 78;
      DeviceRegProp = CmGetDeviceRegProp(PiPnpRtlCtx, v23, 0i64, 9, (__int64)&v30, (__int64)v39, (__int64)&v29, 0);
      if( DeviceRegProp < 0 )
        goto LABEL_14;
      if( v30 != 1 )
      {
LABEL_36:
        ZwClose(KeyHandle);
        KeyHandle = 0i64;
        goto LABEL_4;
      }
      v40 = 0;
      v22 = (const WCHAR *)v39;
    }
    else
    {
      v22 = *(const WCHAR **)(v7 + 3);
    }
    if( v22 )
    {
      RtlInitUnicodeString(&DestinationString, v22, v21);
      *(_QWORD *)&v38.Length = 48i64;
      v31 = 0i64;
      v38.RootDirectory = Handle;
      *(_QWORD *)&v38.Attributes = 576i64;
      v38.ObjectName = &DestinationString;
      *(_OWORD *)&v38.SecurityDescriptor = 0i64;
      v24 = ZwOpenKey(&v31, 0xF003Fu, &v38);
      DeviceRegProp = v24;
      if( v24 >= 0 )
      {
        ZwClose(Handle);
        Handle = v31;
      }
    }
LABEL_14:
    if( DeviceRegProp == -1073741772 )
      goto LABEL_36;
    if( DeviceRegProp < 0 )
      break;
    v26 = v33;
    v25 = (int)Handle;
    v13 = v35(v34, a2, v7 - 3, KeyHandle);
    if( v13 == -1073741248 )
      goto LABEL_6;
    if( v13 < 0 )
    {
LABEL_26:
      v11 = v13;
      goto LABEL_6;
    }
    ZwClose(KeyHandle);
    KeyHandle = 0i64;
    ZwClose(Handle);
    Handle = 0i64;
LABEL_4:
    ++v12;
    v7 += 8;
    if( v12 >= 7 )
      goto LABEL_6;
    v8 = v36;
  }
  v11 = DeviceRegProp;
LABEL_6:
  if( KeyHandle )
    ZwClose(KeyHandle);
  if( Handle )
    ZwClose(Handle);
  return v11;
}

Referenced by: