--- Gnu-Mach/device/if_hdr.h	2020/09/02 04:36:57	1.1
+++ Gnu-Mach/device/if_hdr.h	2020/09/02 04:45:31	1.1.1.3
@@ -30,17 +30,29 @@
  * Copyright (c) 1982, 1986 Regents of the University of California.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. The name of the Laboratory may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
  *
  *	@(#)if.h	7.3 (Berkeley) 6/27/88
  */
@@ -79,8 +91,11 @@ struct ifnet {
 	char	*if_address;		/* pointer to hardware address */
 	struct ifqueue if_snd;		/* output queue */
 	queue_head_t if_rcv_port_list;	/* input filter list */
+	queue_head_t if_snd_port_list;	/* output filter list */
+	decl_simple_lock_data(,
+		if_rcv_port_list_lock)	/* lock for input filter list */
 	decl_simple_lock_data(,
-		if_rcv_port_list_lock)	/* lock for filter list */
+		if_snd_port_list_lock)	/* lock for output filter list */
 /* statistics */
 	int	if_ipackets;		/* packets received */
 	int	if_ierrors;		/* input errors */
@@ -147,4 +162,4 @@ struct ifnet {
 
 #define	IFNET_SLOWHZ	1		/* granularity is 1 second */
 
-#endif	_IF_HDR_
+#endif	/* _IF_HDR_ */