--- /dev/null
+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#ifndef _VLANCONFIGURATION_H
+#define _VLANCONFIGURATION_H
+
+
+#include <sys/cdefs.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+
+typedef const struct __VLANInterface * VLANInterfaceRef;
+
+typedef const struct __VLANPreferences * VLANPreferencesRef;
+
+
+__BEGIN_DECLS
+
+// ----------
+
+Boolean
+IsVLANSupported (CFStringRef device); // e.g. "en0", "en1", ...
+
+// ----------
+
+CFTypeID
+VLANInterfaceGetTypeID (void);
+
+CFStringRef
+VLANInterfaceGetInterface (VLANInterfaceRef vlan); // returns "vlan0", "vlan1", ...
+
+CFStringRef
+VLANInterfaceGetDevice (VLANInterfaceRef vlan); // returns "en0", "en1, ...
+
+CFNumberRef
+VLANInterfaceGetTag (VLANInterfaceRef vlan); // returns 1 <= tag <= 4094
+
+CFDictionaryRef
+VLANInterfaceGetOptions (VLANInterfaceRef vlan); // e.g. UserDefinedName, ...
+
+// ----------
+
+CFTypeID
+VLANPreferencesGetTypeID (void);
+
+VLANPreferencesRef
+VLANPreferencesCreate (CFAllocatorRef allocator);
+
+CFArrayRef /* of VLANInterfaceRef's */
+VLANPreferencesCopyInterfaces (VLANPreferencesRef prefs);
+
+VLANInterfaceRef
+VLANPreferencesAddInterface (VLANPreferencesRef prefs,
+ CFStringRef device, // e.g. "en0", "en1", ...
+ CFNumberRef tag, // e.g. 1 <= tag <= 4094
+ CFDictionaryRef options); // e.g. UserDefinedName, ...
+
+Boolean
+VLANPreferencesUpdateInterface (VLANPreferencesRef prefs,
+ VLANInterfaceRef vlan,
+ CFStringRef newDevice,
+ CFNumberRef newTag,
+ CFDictionaryRef newOptions);
+
+Boolean
+VLANPreferencesRemoveInterface (VLANPreferencesRef prefs,
+ VLANInterfaceRef vlan);
+
+Boolean
+VLANPreferencesCommitChanges (VLANPreferencesRef prefs);
+
+Boolean
+VLANPreferencesApplyChanges (VLANPreferencesRef prefs);
+
+// ----------
+
+__END_DECLS
+
+#endif /* _VLANCONFIGURATION_H */