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![Jan Engelhardt](/assets/img/avatar_default.png)
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* (C) 2003,2004 USAGI/WIDE Project <http://www.linux-ipv6.org>
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*
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* Based largely upon the original ip_conntrack code which
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* had the following copyright information:
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*
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* (C) 1999-2001 Paul `Rusty' Russell
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* (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Author:
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* Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
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*/
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#include <linux/types.h>
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#include <linux/ip.h>
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#include <linux/netfilter.h>
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#include <linux/module.h>
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#include <linux/skbuff.h>
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#include <linux/icmp.h>
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#include <linux/sysctl.h>
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#include <net/ip.h>
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#include <linux/netfilter_ipv4.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_l4proto.h>
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#include <net/netfilter/nf_conntrack_l3proto.h>
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#include <net/netfilter/nf_conntrack_core.h>
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#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
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static bool generic_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
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struct nf_conntrack_tuple *tuple)
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{
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memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
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memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
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return true;
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}
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static bool generic_invert_tuple(struct nf_conntrack_tuple *tuple,
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const struct nf_conntrack_tuple *orig)
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{
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memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
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memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
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return true;
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}
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static int generic_print_tuple(struct seq_file *s,
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const struct nf_conntrack_tuple *tuple)
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{
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return 0;
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}
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static int generic_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
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unsigned int *dataoff, u_int8_t *protonum)
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{
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/* Never track !!! */
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return -NF_ACCEPT;
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}
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struct nf_conntrack_l3proto nf_conntrack_l3proto_generic __read_mostly = {
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.l3proto = PF_UNSPEC,
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.name = "unknown",
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.pkt_to_tuple = generic_pkt_to_tuple,
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.invert_tuple = generic_invert_tuple,
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.print_tuple = generic_print_tuple,
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.get_l4proto = generic_get_l4proto,
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};
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EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_generic);
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