bsd/net/kpi_interfacefilter.c

   1 /*
   2  * Copyright (c) 2003,2013 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include "kpi_interfacefilter.h"
  30
  31 #include <sys/malloc.h>
  32 #include <sys/param.h>
  33 #include <sys/socket.h>
  34 #include <sys/kern_event.h>
  35 #include <net/dlil.h>
  36
  37 errno_t
  38 iflt_attach(
  39         ifnet_t interface,
  40         const struct iff_filter *filter,
  41         interface_filter_t *filter_ref)
  42 {
  43         if (interface == NULL) return ENOENT;
  44
  45         return dlil_attach_filter(interface, filter, filter_ref, 0);
  46 }
  47
  48 void
  49 iflt_detach(
  50         interface_filter_t filter_ref)
  51 {
  52         dlil_detach_filter(filter_ref);
  53 }