diff --git a/include/efi_api.h b/include/efi_api.h
index f07d074..99ee749 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -616,6 +616,7 @@
 #  define DEVICE_PATH_SUB_TYPE_MSG_SCSI		0x02
 #  define DEVICE_PATH_SUB_TYPE_MSG_USB		0x05
 #  define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR	0x0b
+#  define DEVICE_PATH_SUB_TYPE_MSG_IPV4		0x0c
 #  define DEVICE_PATH_SUB_TYPE_MSG_UART		0x0e
 #  define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS	0x0f
 #  define DEVICE_PATH_SUB_TYPE_MSG_USB_WWI	0x10
@@ -691,6 +692,22 @@
 	u8 uri[];
 } __packed;
 
+struct efi_ipv4_address {
+	u8 ip_addr[4];
+};
+
+struct efi_device_path_ipv4 {
+	struct efi_device_path dp;
+	struct efi_ipv4_address local_ip_address;
+	struct efi_ipv4_address remote_ip_address;
+	u16 local_port;
+	u16 remote_port;
+	u16 protocol;
+	u8 static_ip_address;
+	struct efi_ipv4_address gateway_ip_address;
+	struct efi_ipv4_address subnet_mask;
+} __packed;
+
 #define DEVICE_PATH_TYPE_MEDIA_DEVICE		0x04
 #  define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH	0x01
 #  define DEVICE_PATH_SUB_TYPE_CDROM_PATH	0x02