diff --git a/windows/types_windows.go b/windows/types_windows.go
index fac0309..ad67df2 100644
--- a/windows/types_windows.go
+++ b/windows/types_windows.go
@@ -1157,6 +1157,22 @@
 	Flags       uint32
 }
 
+type WSACMSGHDR struct {
+	Len   uintptr
+	Level int32
+	Type  int32
+}
+
+type IN_PKTINFO struct {
+	Addr    [4]byte
+	Ifindex uint32
+}
+
+type IN6_PKTINFO struct {
+	Addr    [16]byte
+	Ifindex uint32
+}
+
 // Flags for WSASocket
 const (
 	WSA_FLAG_OVERLAPPED             = 0x01