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/* (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.
*/
#include <linux/types.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/netfilter.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
static bool generic_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
{
tuple->src.u.all = 0;
tuple->dst.u.all = 0;
return true;
}
static bool generic_invert_tuple(struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_tuple *orig)
{
tuple->src.u.all = 0;
tuple->dst.u.all = 0;
return true;
}
/* Print out the per-protocol part of the tuple. */
static int generic_print_tuple(struct seq_file *s,
const struct nf_conntrack_tuple *tuple)
{
return 0;
}
/* Returns verdict for packet, or -1 for invalid. */
static int packet(struct nf_conn *ct,
const struct sk_buff *skb,
unsigned int dataoff,
enum ip_conntrack_info ctinfo,
u_int8_t pf,
unsigned int hooknum)
{
nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_generic_timeout);
return NF_ACCEPT;
}
/* Called when a new connection for this protocol found. */
static bool new(struct nf_conn *ct, const struct sk_buff *skb,
unsigned int dataoff)
{
return true;
}
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *generic_sysctl_header;
static struct ctl_table generic_sysctl_table[] = {
{
.procname = "nf_conntrack_generic_timeout",
.data = &nf_ct_generic_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{ }
};
#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
static struct ctl_table generic_compat_sysctl_table[] = {
{
.procname = "ip_conntrack_generic_timeout",
.data = &nf_ct_generic_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{ }
};
#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
{
.l3proto = PF_UNSPEC,
.l4proto = 255,
.name = "unknown",
.pkt_to_tuple = generic_pkt_to_tuple,
.invert_tuple = generic_invert_tuple,
.print_tuple = generic_print_tuple,
.packet = packet,
.new = new,
#ifdef CONFIG_SYSCTL
.ctl_table_header = &generic_sysctl_header,
.ctl_table = generic_sysctl_table,
#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
.ctl_compat_table = generic_compat_sysctl_table,
#endif
#endif
};
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