Index: lib/libifconfig/Makefile
===================================================================
--- lib/libifconfig/Makefile
+++ lib/libifconfig/Makefile
@@ -8,8 +8,14 @@
 
 SHLIBDIR?=	/lib
 SHLIB_MAJOR=	1
-SRCS=		libifconfig.c libifconfig_carp.c libifconfig_inet.c
-SRCS+=		libifconfig_inet6.c libifconfig_internal.c libifconfig_lagg.c
+SRCS= 
+SRCS+=		libifconfig.c
+SRCS+=		libifconfig_bridge.c
+SRCS+=		libifconfig_carp.c
+SRCS+=		libifconfig_inet.c
+SRCS+=		libifconfig_inet6.c
+SRCS+=		libifconfig_internal.c
+SRCS+=		libifconfig_lagg.c
 SRCS+=		libifconfig_media.c
 
 INCSDIR=	${INCLUDEDIR}
Index: lib/libifconfig/libifconfig.h
===================================================================
--- lib/libifconfig/libifconfig.h
+++ lib/libifconfig/libifconfig.h
@@ -238,14 +238,14 @@
 
 /** Creates a (virtual) interface
  * @param name Name of interface to create. Example: bridge or bridge42
- * @param name ifname Is set to actual name of created interface
+ * @param ifname Is set to actual name of created interface
  */
 int ifconfig_create_interface(ifconfig_handle_t *h, const char *name,
     char **ifname);
 
 /** Creates a (virtual) interface
  * @param name Name of interface to create. Example: vlan0 or ix0.50
- * @param name ifname Is set to actual name of created interface
+ * @param ifname ifname Is set to actual name of created interface
  * @param vlandev Name of interface to attach to
  * @param vlanid VLAN ID/Tag. Must not be 0.
  */
@@ -254,3 +254,17 @@
 
 int ifconfig_set_vlantag(ifconfig_handle_t *h, const char *name,
     const char *vlandev, const unsigned short vlantag);
+
+/** Adds interface to bridge 
+ * @param name Name of bridge
+ * @param membername Name of interface to add as member of bridge
+ */
+int ifconfig_bridge_add_member(ifconfig_handle_t *h, const char *name,
+	const char *membername);
+
+/** Adds interface to bridge 
+ * @param name Name of bridge
+ * @param membername Name of interface to remove from bridge
+ */
+int ifconfig_bridge_remove_member(ifconfig_handle_t *h, const char *name,
+	const char *membername);
Index: lib/libifconfig/libifconfig_bridge.c
===================================================================
--- /dev/null
+++ lib/libifconfig/libifconfig_bridge.c
@@ -0,0 +1,99 @@
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
+ * Copyright 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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.
+ */
+
+
+#include <sys/sockio.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_bridgevar.h>
+
+#include <string.h>
+
+#include "libifconfig.h"
+#include "libifconfig_internal.h"
+
+static int
+do_cmd(ifconfig_handle_t *h, const char *bridgename, 
+    u_long op, void *arg, size_t argsize, int set)
+{
+	struct ifdrv ifd;
+
+	memset(&ifd, 0, sizeof(ifd));
+
+	strlcpy(ifd.ifd_name, bridgename, sizeof(ifd.ifd_name));
+	ifd.ifd_cmd = op;
+	ifd.ifd_len = argsize;
+	ifd.ifd_data = arg;
+
+	return (ifconfig_ioctlwrap(h, AF_LOCAL,
+        set ? SIOCSDRVSPEC : SIOCGDRVSPEC, &ifd));
+}
+
+static int
+ifconfig_bridge_addrem_member(ifconfig_handle_t *h, const char *name,
+    const char *membername, int add)
+{
+    struct ifbreq req;
+
+    memset(&req, 0, sizeof(req));
+
+    strlcpy(req.ifbr_ifsname, membername, sizeof(req.ifbr_ifsname));
+
+    if (do_cmd(h, name, add ? BRDGADD : BRDGDEL, &req,
+        sizeof(req), 1) < 0)
+    {
+		return (-1);
+    }
+    return 0;
+}
+
+int ifconfig_bridge_add_member(ifconfig_handle_t *h, const char *name,
+    const char *membername)
+{
+    return ifconfig_bridge_addrem_member(h, name, membername, 1);
+}
+
+int ifconfig_bridge_remove_member(ifconfig_handle_t *h, const char *name,
+    const char *membername)
+{
+    return ifconfig_bridge_addrem_member(h, name, membername, 0);
+}
+