1 /*
2 * Copyright (c) 2003,2013,2017 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 #undef iflt_attach
38 errno_t
39 iflt_attach(
40 ifnet_t interface,
41 const struct iff_filter *filter,
42 interface_filter_t *filter_ref);
43
44
45 errno_t
iflt_attach_internal(ifnet_t interface,const struct iff_filter * filter,interface_filter_t * filter_ref)46 iflt_attach_internal(
47 ifnet_t interface,
48 const struct iff_filter *filter,
49 interface_filter_t *filter_ref)
50 {
51 if (interface == NULL) {
52 return ENOENT;
53 }
54
55 return dlil_attach_filter(interface, filter, filter_ref,
56 DLIL_IFF_INTERNAL);
57 }
58
59 errno_t
iflt_attach(ifnet_t interface,const struct iff_filter * filter,interface_filter_t * filter_ref)60 iflt_attach(
61 ifnet_t interface,
62 const struct iff_filter *filter,
63 interface_filter_t *filter_ref)
64 {
65 if (interface == NULL) {
66 return ENOENT;
67 }
68
69 return dlil_attach_filter(interface, filter, filter_ref, 0);
70 }
71
72 void
iflt_detach(interface_filter_t filter_ref)73 iflt_detach(
74 interface_filter_t filter_ref)
75 {
76 dlil_detach_filter(filter_ref);
77 }
78