xref: /freebsd/sys/netpfil/ipfw/nat64/nat64stl.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2015-2019 Yandex LLC
5  * Copyright (c) 2015-2019 Andrey V. Elsukov <ae@FreeBSD.org>
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  *
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef	_IP_FW_NAT64STL_H_
30 #define	_IP_FW_NAT64STL_H_
31 
32 #include "ip_fw_nat64.h"
33 #include "nat64_translate.h"
34 
35 struct nat64stl_cfg {
36 	struct named_object	no;
37 
38 	uint16_t		map64;	/* table with 6to4 mapping */
39 	uint16_t		map46;	/* table with 4to6 mapping */
40 
41 	struct nat64_config	base;
42 #define	NAT64STL_KIDX		0x0100
43 #define	NAT64STL_46T		0x0200
44 #define	NAT64STL_64T		0x0400
45 	/* flags to pass to userland */
46 #define	NAT64STL_FLAGSMASK	(NAT64_LOG | NAT64_ALLOW_PRIVATE)
47 	char			name[64];
48 };
49 
50 VNET_DECLARE(uint16_t, nat64stl_eid);
51 #define	V_nat64stl_eid	VNET(nat64stl_eid)
52 #define	IPFW_TLV_NAT64STL_NAME	IPFW_TLV_EACTION_NAME(V_nat64stl_eid)
53 
54 int ipfw_nat64stl(struct ip_fw_chain *chain, struct ip_fw_args *args,
55     ipfw_insn *cmd, int *done);
56 
57 #endif
58