diff --git a/lib/ssl/ssl.h b/lib/ssl/ssl.h
index 48fa018..0983b5f 100644
--- a/lib/ssl/ssl.h
+++ b/lib/ssl/ssl.h
@@ -1117,6 +1117,9 @@ SSL_IMPORT SECStatus SSL_HandshakeNegotiatedExtension(PRFileDesc * socket,
                                                       SSLExtensionType extId,
                                                       PRBool *yes);
 
+SSL_IMPORT SECStatus SSL_HandshakeResumedSession(PRFileDesc *fd,
+                                                 PRBool *last_handshake_resumed);
+
 /*
 ** How long should we wait before retransmitting the next flight of
 ** the DTLS handshake? Returns SECFailure if not DTLS or not in a
diff --git a/lib/ssl/sslsock.c b/lib/ssl/sslsock.c
index 21754d6..b73f8f6 100644
--- a/lib/ssl/sslsock.c
+++ b/lib/ssl/sslsock.c
@@ -2151,6 +2151,20 @@ SSL_PeerStapledOCSPResponses(PRFileDesc *fd)
     return &ss->sec.ci.sid->peerCertStatus;
 }
 
+SECStatus
+SSL_HandshakeResumedSession(PRFileDesc *fd, PRBool *handshake_resumed) {
+    sslSocket *ss = ssl_FindSocket(fd);
+
+    if (!ss) {
+	SSL_DBG(("%d: SSL[%d]: bad socket in SSL_HandshakeResumedSession",
+		 SSL_GETPID(), fd));
+	return SECFailure;
+    }
+
+    *handshake_resumed = ss->ssl3.hs.isResuming;
+    return SECSuccess;
+}
+
 /************************************************************************/
 /* The following functions are the TOP LEVEL SSL functions.
 ** They all get called through the NSPRIOMethods table below.