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- /*
- * (C) 2003,2004 USAGI/WIDE Project <http://www.linux-ipv6.org>
- *
- * Based largely upon the original ip_conntrack code which
- * had the following copyright information:
- *
- * (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * 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.
- *
- * Author:
- * Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- */
- #include <linux/types.h>
- #include <linux/ip.h>
- #include <linux/netfilter.h>
- #include <linux/module.h>
- #include <linux/skbuff.h>
- #include <linux/icmp.h>
- #include <linux/sysctl.h>
- #include <net/ip.h>
- #include <linux/netfilter_ipv4.h>
- #include <net/netfilter/nf_conntrack.h>
- #include <net/netfilter/nf_conntrack_l4proto.h>
- #include <net/netfilter/nf_conntrack_l3proto.h>
- #include <net/netfilter/nf_conntrack_core.h>
- #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
- #if 0
- #define DEBUGP printk
- #else
- #define DEBUGP(format, args...)
- #endif
- static int generic_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
- struct nf_conntrack_tuple *tuple)
- {
- memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
- memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
- return 1;
- }
- static int generic_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
- {
- memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
- memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
- return 1;
- }
- static int generic_print_tuple(struct seq_file *s,
- const struct nf_conntrack_tuple *tuple)
- {
- return 0;
- }
- static int generic_print_conntrack(struct seq_file *s,
- const struct nf_conn *conntrack)
- {
- return 0;
- }
- static int
- generic_prepare(struct sk_buff **pskb, unsigned int hooknum,
- unsigned int *dataoff, u_int8_t *protonum)
- {
- /* Never track !!! */
- return -NF_ACCEPT;
- }
- static u_int32_t generic_get_features(const struct nf_conntrack_tuple *tuple)
- {
- return NF_CT_F_BASIC;
- }
- struct nf_conntrack_l3proto nf_conntrack_l3proto_generic = {
- .l3proto = PF_UNSPEC,
- .name = "unknown",
- .pkt_to_tuple = generic_pkt_to_tuple,
- .invert_tuple = generic_invert_tuple,
- .print_tuple = generic_print_tuple,
- .print_conntrack = generic_print_conntrack,
- .prepare = generic_prepare,
- .get_features = generic_get_features,
- };
- EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_generic);
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