1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*-
* Copyright (c) 2003 Sam Leffler, Errno Consulting
* All rights reserved.
*
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#ifndef _NETINET_IP_DIVERT_H_
#define _NETINET_IP_DIVERT_H_
/*
* Divert socket definitions.
*/
struct divert_tag {
u_int32_t info; /* port & flags */
u_int16_t cookie; /* ipfw rule number */
};
/*
* Return the divert cookie associated with the mbuf; if any.
*/
static __inline u_int16_t
divert_cookie(struct m_tag *mtag)
{
return ((struct divert_tag *)(mtag+1))->cookie;
}
static __inline u_int16_t
divert_find_cookie(struct mbuf *m)
{
struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL);
return mtag ? divert_cookie(mtag) : 0;
}
/*
* Return the divert info associated with the mbuf; if any.
*/
static __inline u_int32_t
divert_info(struct m_tag *mtag)
{
return ((struct divert_tag *)(mtag+1))->info;
}
static __inline u_int32_t
divert_find_info(struct mbuf *m)
{
struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL);
return mtag ? divert_info(mtag) : 0;
}
extern void div_init(void);
extern void div_input(struct mbuf *, int);
extern void div_ctlinput(int, struct sockaddr *, void *);
extern void divert_packet(struct mbuf *m, int incoming);
extern struct mbuf *divert_clone(struct mbuf *);
extern struct pr_usrreqs div_usrreqs;
#endif /* _NETINET_IP_DIVERT_H_ */
|
