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net
netfilter
nf_conntrack_timeout.c
Go to the documentation of this file.
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/*
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* (C) 2012 by Pablo Neira Ayuso <
[email protected]
>
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* (C) 2012 by Vyatta Inc. <http://www.vyatta.com>
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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 (or any later at your option).
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*/
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#include <linux/types.h>
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#include <linux/netfilter.h>
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#include <
linux/skbuff.h
>
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#include <
linux/vmalloc.h
>
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#include <linux/stddef.h>
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#include <
linux/err.h
>
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#include <
linux/percpu.h
>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <linux/slab.h>
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#include <linux/export.h>
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#include <
net/netfilter/nf_conntrack.h
>
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#include <
net/netfilter/nf_conntrack_core.h
>
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#include <
net/netfilter/nf_conntrack_extend.h
>
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#include <
net/netfilter/nf_conntrack_timeout.h
>
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struct
ctnl_timeout
*
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(*nf_ct_timeout_find_get_hook)(
const
char
*
name
)
__read_mostly
;
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EXPORT_SYMBOL_GPL
(
nf_ct_timeout_find_get_hook
);
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void
(*
nf_ct_timeout_put_hook
)(
struct
ctnl_timeout
*
timeout
)
__read_mostly
;
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EXPORT_SYMBOL_GPL
(
nf_ct_timeout_put_hook
);
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static
struct
nf_ct_ext_type
timeout_extend
__read_mostly
= {
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.len =
sizeof
(
struct
nf_conn_timeout
),
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.
align
= __alignof__(
struct
nf_conn_timeout
),
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.id = NF_CT_EXT_TIMEOUT,
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};
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int
nf_conntrack_timeout_init
(
struct
net
*
net
)
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{
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int
ret
= 0;
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if
(net_eq(net, &
init_net
)) {
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ret =
nf_ct_extend_register
(&timeout_extend);
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if
(ret < 0) {
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printk
(
KERN_ERR
"nf_ct_timeout: Unable to register "
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"timeout extension.\n"
);
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return
ret
;
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}
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}
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return
0;
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}
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void
nf_conntrack_timeout_fini
(
struct
net
*
net
)
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{
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if
(net_eq(net, &
init_net
))
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nf_ct_extend_unregister
(&timeout_extend);
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}
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