1 /*
2 * Copyright (c) 2014 - 2018 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Bill Yuan <bycn82@dragonflybsd.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
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <stdio.h>
36 #include <stdlib.h>
37
38 #include <net/if.h>
39 #include <net/route.h>
40 #include <net/pfil.h>
41 #include <netinet/in.h>
42
43 #include <net/ipfw3/ip_fw3.h>
44 #include "../../../sbin/ipfw3/ipfw3.h"
45 #include "ipfw3_nat.h"
46
47
48 void
parse_nat(ipfw_insn ** cmd,int * ac,char ** av[])49 parse_nat(ipfw_insn **cmd, int *ac, char **av[])
50 {
51 NEXT_ARG1;
52 (*cmd)->opcode = O_NAT_NAT;
53 (*cmd)->module = MODULE_NAT_ID;
54 (*cmd)->len = F_INSN_SIZE(ipfw_insn_nat);
55 (*cmd)->arg1 = strtoul(**av, NULL, 10);
56 ((ipfw_insn_nat *)(*cmd))->nat = NULL;
57 NEXT_ARG1;
58 }
59
60 void
show_nat(ipfw_insn * cmd,int show_or)61 show_nat(ipfw_insn *cmd, int show_or)
62 {
63 printf(" nat %u", cmd->arg1);
64 }
65
66 void
load_module(register_func function,register_keyword keyword)67 load_module(register_func function, register_keyword keyword)
68 {
69 keyword(MODULE_NAT_ID, O_NAT_NAT, "nat", ACTION);
70 function(MODULE_NAT_ID, O_NAT_NAT,
71 (parser_func)parse_nat, (shower_func)show_nat);
72 }
73