There's no such things as DTLS1_AD_MISSING_HANDSHAKE_MESSAGE.

For now, anyway.

ssl/d1_pkt.c

@@ -1551,6 +1551,7 @@ int dtls1_dispatch_alert(SSL *s)
 	*ptr++ = s->s3->send_alert[0];
 	*ptr++ = s->s3->send_alert[1];
 
+#ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
 	if (s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE)
 		{	
 		s2n(s->d1->handshake_read_seq, ptr);
@@ -1566,6 +1567,7 @@ int dtls1_dispatch_alert(SSL *s)
 #endif
 		l2n3(s->d1->r_msg_hdr.frag_off, ptr);
 		}
+#endif
 
 	i = do_dtls1_write(s, SSL3_RT_ALERT, &buf[0], sizeof(buf), 0);
 	if (i <= 0)
@@ -1575,8 +1577,11 @@ int dtls1_dispatch_alert(SSL *s)
 		}
 	else
 		{
-		if ( s->s3->send_alert[0] == SSL3_AL_FATAL ||
-			s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE)
+		if (s->s3->send_alert[0] == SSL3_AL_FATAL
+#ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
+		    || s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
+#endif
+		    )
 			(void)BIO_flush(s->wbio);
 
 		if (s->msg_callback)

ssl/dtls1.h

@@ -71,7 +71,9 @@ extern "C" {
 #define DTLS1_VERSION_MAJOR		0x01
 #define DTLS1_VERSION_MINOR		0x00
 
+#if 0
 #define DTLS1_AD_MISSING_HANDSHAKE_MESSAGE    110
+#endif
 
 /* lengths of messages */
 #define DTLS1_COOKIE_LENGTH                     32

ssl/t1_enc.c

@@ -828,8 +828,10 @@ int tls1_alert_code(int code)
 	case SSL_AD_UNRECOGNIZED_NAME:	return(TLS1_AD_UNRECOGNIZED_NAME);
 	case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE);
 	case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE);
+#if 0 /* not appropriate for TLS, not used for DTLS */
 	case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: return 
 					  (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE);
+#endif
 	default:			return(-1);
 		}
 	}

ssl/tls1.h

@@ -360,6 +360,3 @@ SSL_ctrl(s,SSL_CTRL_SET_TLSEXT_SERVERNAME_DONE,t, NULL)
 }
 #endif
 #endif
-
-
-