1 | /* |
2 | * Copyright (c) 2008-2013 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 | /*- |
30 | * Copyright (c) 2003 Sam Leffler, Errno Consulting |
31 | * All rights reserved. |
32 | * |
33 | * Redistribution and use in source and binary forms, with or without |
34 | * modification, are permitted provided that the following conditions |
35 | * are met: |
36 | * 1. Redistributions of source code must retain the above copyright |
37 | * notice, this list of conditions and the following disclaimer, |
38 | * without modification. |
39 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
40 | * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any |
41 | * redistribution must be conditioned upon including a substantially |
42 | * similar Disclaimer requirement for further binary redistribution. |
43 | * 3. Neither the names of the above-listed copyright holders nor the names |
44 | * of any contributors may be used to endorse or promote products derived |
45 | * from this software without specific prior written permission. |
46 | * |
47 | * NO WARRANTY |
48 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
49 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
50 | * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY |
51 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
52 | * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, |
53 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
54 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
55 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
56 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
57 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
58 | * THE POSSIBILITY OF SUCH DAMAGES. |
59 | * |
60 | * $FreeBSD: src/sys/netinet/ip_divert.h,v 1.3 2004/02/25 19:55:28 mlaier Exp $ |
61 | */ |
62 | |
63 | #ifndef _NETINET_IP_DIVERT_H_ |
64 | #define _NETINET_IP_DIVERT_H_ |
65 | |
66 | #if IPDIVERT |
67 | #ifdef BSD_KERNEL_PRIVATE |
68 | /* |
69 | * Divert socket definitions. |
70 | */ |
71 | |
72 | /* 32-bit unique unsigned value used to identify a module */ |
73 | |
74 | struct divert_tag { |
75 | u_int32_t info; /* port & flags */ |
76 | u_int16_t cookie; /* ipfw rule number */ |
77 | }; |
78 | |
79 | /* |
80 | * Return the divert cookie associated with the mbuf; if any. |
81 | */ |
82 | static __inline u_int16_t |
83 | divert_cookie(struct m_tag *mtag) |
84 | { |
85 | return ((struct divert_tag *)(mtag+1))->cookie; |
86 | } |
87 | static __inline u_int16_t |
88 | divert_find_cookie(struct mbuf *m) |
89 | { |
90 | struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, |
91 | KERNEL_TAG_TYPE_DIVERT, NULL); |
92 | return mtag ? divert_cookie(mtag) : 0; |
93 | } |
94 | |
95 | /* |
96 | * Return the divert info associated with the mbuf; if any. |
97 | */ |
98 | static __inline u_int32_t |
99 | divert_info(struct m_tag *mtag) |
100 | { |
101 | return ((struct divert_tag *)(mtag+1))->info; |
102 | } |
103 | static __inline u_int32_t |
104 | divert_find_info(struct mbuf *m) |
105 | { |
106 | struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, |
107 | KERNEL_TAG_TYPE_DIVERT, NULL); |
108 | return mtag ? divert_info(mtag) : 0; |
109 | } |
110 | |
111 | extern void div_init(struct protosw *, struct domain *); |
112 | extern void div_input(struct mbuf *, int); |
113 | lck_mtx_t * |
114 | div_getlock(struct socket *, int ); |
115 | int div_unlock(struct socket *, int, void *); |
116 | int div_lock(struct socket *, int , void *); |
117 | extern void divert_packet(struct mbuf *m, int incoming, int port, int rule); |
118 | extern struct pr_usrreqs div_usrreqs; |
119 | |
120 | #endif /* BSD_KERNEL_PRIVATE */ |
121 | #endif /* IPDIVERT */ |
122 | #endif /* _NETINET_IP_DIVERT_H_ */ |
123 | |