diff --git a/newlib/libc/sys/rtems/include/net/if.h b/newlib/libc/sys/rtems/include/net/if.h
index a60374d54..a5539bdcd 100644
--- a/newlib/libc/sys/rtems/include/net/if.h
+++ b/newlib/libc/sys/rtems/include/net/if.h
@@ -247,6 +247,8 @@ struct if_data {
 #define	IFCAP_TXRTLMT		0x1000000 /* hardware supports TX rate limiting */
 #define	IFCAP_HWRXTSTMP		0x2000000 /* hardware rx timestamping */
 #define	IFCAP_NOMAP		0x4000000 /* can TX unmapped mbufs */
+#define	IFCAP_TXTLS4		0x8000000 /* can do TLS encryption and segmentation for TCP */
+#define	IFCAP_TXTLS6		0x10000000 /* can do TLS encryption and segmentation for TCP6 */
 
 #define IFCAP_HWCSUM_IPV6	(IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6)
 
@@ -254,6 +256,7 @@ struct if_data {
 #define	IFCAP_TSO	(IFCAP_TSO4 | IFCAP_TSO6)
 #define	IFCAP_WOL	(IFCAP_WOL_UCAST | IFCAP_WOL_MCAST | IFCAP_WOL_MAGIC)
 #define	IFCAP_TOE	(IFCAP_TOE4 | IFCAP_TOE6)
+#define	IFCAP_TXTLS	(IFCAP_TXTLS4 | IFCAP_TXTLS6)
 
 #define	IFCAP_CANTCHANGE	(IFCAP_NETMAP)
 
diff --git a/newlib/libc/sys/rtems/include/netinet/tcp.h b/newlib/libc/sys/rtems/include/netinet/tcp.h
index 37cf35caa..bce1d59c6 100644
--- a/newlib/libc/sys/rtems/include/netinet/tcp.h
+++ b/newlib/libc/sys/rtems/include/netinet/tcp.h
@@ -29,7 +29,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)tcp.h	8.1 (Berkeley) 6/10/93
- * $FreeBSD: head/sys/netinet/tcp.h 334804 2018-06-07 18:18:13Z rrs $
+ * $FreeBSD: head/sys/netinet/tcp.h 351522 2019-08-27 00:01:56Z jhb $
  */
 
 #ifndef _NETINET_TCP_H_
@@ -174,6 +174,8 @@ struct tcphdr {
 #define	TCP_LOGDUMP	37	/* dump connection log events to device */
 #define	TCP_LOGDUMPID	38	/* dump events from connections with same ID to
 				   device */
+#define	TCP_TXTLS_ENABLE 39	/* TLS framing and encryption for transmit */
+#define	TCP_TXTLS_MODE	40	/* Transmit TLS mode */
 #define	TCP_CONGESTION	64	/* get/set congestion control algorithm */
 #define	TCP_CCALGOOPT	65	/* get/set cc algorithm specific options */
 #define TCP_DELACK  	72	/* socket option for delayed ack */
@@ -350,4 +352,14 @@ struct tcp_function_set {
 	uint32_t pcbcnt;
 };
 
+/* TLS modes for TCP_TXTLS_MODE */
+#define	TCP_TLS_MODE_NONE	0
+#define	TCP_TLS_MODE_SW		1
+#define	TCP_TLS_MODE_IFNET	2
+
+/*
+ * TCP Control message types
+ */
+#define	TLS_SET_RECORD_TYPE	1
+
 #endif /* !_NETINET_TCP_H_ */