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 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 61 show_nat(ipfw_insn *cmd, int show_or) 62 { 63 printf(" nat %u", cmd->arg1); 64 } 65 66 void 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