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ip_fw_nat64.c
(4.36 KB)
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ip_fw_nat64.h
(2.21 KB)
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nat64_translate.c
(46.75 KB)
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nat64_translate.h
(5.4 KB)
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nat64clat.c
(7.12 KB)
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nat64clat.h
(2.01 KB)
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nat64clat_control.c
(15.66 KB)
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nat64lsn.c
(47.6 KB)
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nat64lsn.h
(7.86 KB)
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nat64lsn_control.c
(24.56 KB)
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nat64stl.c
(7.38 KB)
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nat64stl.h
(2.13 KB)
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nat64stl_control.c
(15.49 KB)
Editing: ip_fw_nat64.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2015-2019 Yandex LLC * Copyright (c) 2015-2019 Andrey V. Elsukov <ae@FreeBSD.org> * * 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. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, 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 DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/malloc.h> #include <sys/module.h> #include <sys/rwlock.h> #include <sys/socket.h> #include <sys/sysctl.h> #include <net/if.h> #include <net/vnet.h> #include <netinet/in.h> #include <netinet/ip_var.h> #include <netinet/ip_fw.h> #include <netpfil/ipfw/ip_fw_private.h> #include "ip_fw_nat64.h" #include "nat64_translate.h" VNET_DEFINE(int, nat64_debug) = 0; SYSCTL_DECL(_net_inet_ip_fw); SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, nat64_debug, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nat64_debug), 0, "Debug level for NAT64 module"); static int sysctl_direct_output(SYSCTL_HANDLER_ARGS) { uint32_t value; int error; value = nat64_get_output_method(); error = sysctl_handle_32(oidp, &value, 0, req); /* Read operation or some error */ if ((error != 0) || (req->newptr == NULL)) return (error); nat64_set_output_method(value); return (0); } SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, nat64_direct_output, CTLFLAG_VNET | CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 0, 0, sysctl_direct_output, "IU", "Use if_output directly instead of deffered netisr-based processing"); static int vnet_ipfw_nat64_init(const void *arg __unused) { struct ip_fw_chain *ch; int first, error; ch = &V_layer3_chain; first = IS_DEFAULT_VNET(curvnet) ? 1: 0; /* Initialize V_nat64out methods explicitly. */ nat64_set_output_method(0); error = nat64stl_init(ch, first); if (error != 0) return (error); error = nat64clat_init(ch, first); if (error != 0) { nat64stl_uninit(ch, first); return (error); } error = nat64lsn_init(ch, first); if (error != 0) { nat64stl_uninit(ch, first); nat64clat_uninit(ch, first); return (error); } return (0); } static int vnet_ipfw_nat64_uninit(const void *arg __unused) { struct ip_fw_chain *ch; int last; ch = &V_layer3_chain; last = IS_DEFAULT_VNET(curvnet) ? 1: 0; nat64stl_uninit(ch, last); nat64clat_uninit(ch, last); nat64lsn_uninit(ch, last); return (0); } static int ipfw_nat64_modevent(module_t mod, int type, void *unused) { switch (type) { case MOD_LOAD: case MOD_UNLOAD: break; default: return (EOPNOTSUPP); } return (0); } static moduledata_t ipfw_nat64_mod = { "ipfw_nat64", ipfw_nat64_modevent, 0 }; /* Define startup order. */ #define IPFW_NAT64_SI_SUB_FIREWALL SI_SUB_PROTO_IFATTACHDOMAIN #define IPFW_NAT64_MODEVENT_ORDER (SI_ORDER_ANY - 128) /* after ipfw */ #define IPFW_NAT64_MODULE_ORDER (IPFW_NAT64_MODEVENT_ORDER + 1) #define IPFW_NAT64_VNET_ORDER (IPFW_NAT64_MODEVENT_ORDER + 2) DECLARE_MODULE(ipfw_nat64, ipfw_nat64_mod, IPFW_NAT64_SI_SUB_FIREWALL, SI_ORDER_ANY); MODULE_DEPEND(ipfw_nat64, ipfw, 3, 3, 3); MODULE_VERSION(ipfw_nat64, 1); VNET_SYSINIT(vnet_ipfw_nat64_init, IPFW_NAT64_SI_SUB_FIREWALL, IPFW_NAT64_VNET_ORDER, vnet_ipfw_nat64_init, NULL); VNET_SYSUNINIT(vnet_ipfw_nat64_uninit, IPFW_NAT64_SI_SUB_FIREWALL, IPFW_NAT64_VNET_ORDER, vnet_ipfw_nat64_uninit, NULL);
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