1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2003 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer,
12 *    without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 *    redistribution must be conditioned upon including a substantially
16 *    similar Disclaimer requirement for further binary redistribution.
17 * 3. Neither the names of the above-listed copyright holders nor the names
18 *    of any contributors may be used to endorse or promote products derived
19 *    from this software without specific prior written permission.
20 *
21 * NO WARRANTY
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
25 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
26 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
27 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
30 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGES.
33 */
34
35#ifndef _NETINET_IP_DIVERT_H_
36#define	_NETINET_IP_DIVERT_H_
37#include <sys/types.h>
38
39/*
40 * All communication occurs through a sockaddr_in socket where
41 *
42 * kernel-->userland
43 *	sin_port = matching rule, host format;
44 * 	sin_addr = IN: first address of the incoming interface;
45 *		   OUT: INADDR_ANY
46 *	sin_zero = if fits, the interface name (max 7 bytes + NUL)
47 *
48 * userland->kernel
49 *	sin_port = restart-rule - 1, host order
50 *		(we restart at sin_port + 1)
51 *	sin_addr = IN: address of the incoming interface;
52 *		   OUT: INADDR_ANY
53 */
54
55struct divstat {
56	uint64_t	div_diverted;	/* successfully diverted to userland */
57	uint64_t	div_noport;	/* failed due to no bound socket */
58	uint64_t	div_outbound;	/* re-injected as outbound */
59	uint64_t	div_inbound;	/* re-injected as inbound */
60};
61#endif /* _NETINET_IP_DIVERT_H_ */
62