diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/netfilter/Kconfig | 8 | ||||
| -rw-r--r-- | net/ipv4/netfilter/Makefile | 1 | ||||
| -rw-r--r-- | net/ipv4/netfilter/nf_nat_redirect_ipv4.c | 82 | ||||
| -rw-r--r-- | net/ipv4/netfilter/nft_redir_ipv4.c | 2 |
4 files changed, 2 insertions, 91 deletions
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig index 8358b2da1549..59f883d9cadf 100644 --- a/net/ipv4/netfilter/Kconfig +++ b/net/ipv4/netfilter/Kconfig @@ -104,12 +104,6 @@ config NF_NAT_MASQUERADE_IPV4 This is the kernel functionality to provide NAT in the masquerade flavour (automatic source address selection). -config NF_NAT_REDIRECT_IPV4 - tristate "IPv4 redirect support" - help - This is the kernel functionality to provide NAT in the redirect - flavour (redirect packets to local machine). - config NFT_MASQ_IPV4 tristate "IPv4 masquerading support for nf_tables" depends on NF_TABLES_IPV4 @@ -123,7 +117,7 @@ config NFT_REDIR_IPV4 tristate "IPv4 redirect support for nf_tables" depends on NF_TABLES_IPV4 depends on NFT_REDIR - select NF_NAT_REDIRECT_IPV4 + select NF_NAT_REDIRECT help This is the expression that provides IPv4 redirect support for nf_tables. diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile index 902bcd1597bb..7fe6c703528f 100644 --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile @@ -31,7 +31,6 @@ obj-$(CONFIG_NF_NAT_H323) += nf_nat_h323.o obj-$(CONFIG_NF_NAT_PPTP) += nf_nat_pptp.o obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o obj-$(CONFIG_NF_NAT_MASQUERADE_IPV4) += nf_nat_masquerade_ipv4.o -obj-$(CONFIG_NF_NAT_REDIRECT_IPV4) += nf_nat_redirect_ipv4.o # NAT protocols (nf_nat) obj-$(CONFIG_NF_NAT_PROTO_GRE) += nf_nat_proto_gre.o diff --git a/net/ipv4/netfilter/nf_nat_redirect_ipv4.c b/net/ipv4/netfilter/nf_nat_redirect_ipv4.c deleted file mode 100644 index a220552fc532..000000000000 --- a/net/ipv4/netfilter/nf_nat_redirect_ipv4.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * (C) 1999-2001 Paul `Rusty' Russell - * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org> - * Copyright (c) 2011 Patrick McHardy <kaber@trash.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Based on Rusty Russell's IPv4 REDIRECT target. Development of IPv6 - * NAT funded by Astaro. - */ - -#include <linux/if.h> -#include <linux/inetdevice.h> -#include <linux/ip.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/netfilter.h> -#include <linux/types.h> -#include <linux/netfilter_ipv4.h> -#include <linux/netfilter/x_tables.h> -#include <net/addrconf.h> -#include <net/checksum.h> -#include <net/protocol.h> -#include <net/netfilter/nf_nat.h> -#include <net/netfilter/ipv4/nf_nat_redirect.h> - -unsigned int -nf_nat_redirect_ipv4(struct sk_buff *skb, - const struct nf_nat_ipv4_multi_range_compat *mr, - unsigned int hooknum) -{ - struct nf_conn *ct; - enum ip_conntrack_info ctinfo; - __be32 newdst; - struct nf_nat_range newrange; - - NF_CT_ASSERT(hooknum == NF_INET_PRE_ROUTING || - hooknum == NF_INET_LOCAL_OUT); - - ct = nf_ct_get(skb, &ctinfo); - NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED)); - - /* Local packets: make them go to loopback */ - if (hooknum == NF_INET_LOCAL_OUT) { - newdst = htonl(0x7F000001); - } else { - struct in_device *indev; - struct in_ifaddr *ifa; - - newdst = 0; - - rcu_read_lock(); - indev = __in_dev_get_rcu(skb->dev); - if (indev != NULL) { - ifa = indev->ifa_list; - newdst = ifa->ifa_local; - } - rcu_read_unlock(); - - if (!newdst) - return NF_DROP; - } - - /* Transfer from original range. */ - memset(&newrange.min_addr, 0, sizeof(newrange.min_addr)); - memset(&newrange.max_addr, 0, sizeof(newrange.max_addr)); - newrange.flags = mr->range[0].flags | NF_NAT_RANGE_MAP_IPS; - newrange.min_addr.ip = newdst; - newrange.max_addr.ip = newdst; - newrange.min_proto = mr->range[0].min; - newrange.max_proto = mr->range[0].max; - - /* Hand modified range to generic setup. */ - return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_DST); -} -EXPORT_SYMBOL_GPL(nf_nat_redirect_ipv4); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); diff --git a/net/ipv4/netfilter/nft_redir_ipv4.c b/net/ipv4/netfilter/nft_redir_ipv4.c index 643c5967aa27..ff2d23d8c87a 100644 --- a/net/ipv4/netfilter/nft_redir_ipv4.c +++ b/net/ipv4/netfilter/nft_redir_ipv4.c @@ -14,7 +14,7 @@ #include <linux/netfilter/nf_tables.h> #include <net/netfilter/nf_tables.h> #include <net/netfilter/nf_nat.h> -#include <net/netfilter/ipv4/nf_nat_redirect.h> +#include <net/netfilter/nf_nat_redirect.h> #include <net/netfilter/nft_redir.h> static void nft_redir_ipv4_eval(const struct nft_expr *expr, |