1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * (C) 2010 Pablo Neira Ayuso <pablo@netfilter.org>
6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8 #include <linux/netfilter.h>
9 #include <linux/slab.h>
10 #include <linux/kernel.h>
11 #include <linux/moduleparam.h>
13 #include <net/netfilter/nf_conntrack.h>
14 #include <net/netfilter/nf_conntrack_extend.h>
15 #include <net/netfilter/nf_conntrack_timestamp.h>
17 static bool nf_ct_tstamp __read_mostly
;
19 module_param_named(tstamp
, nf_ct_tstamp
, bool, 0644);
20 MODULE_PARM_DESC(tstamp
, "Enable connection tracking flow timestamping.");
22 static const struct nf_ct_ext_type tstamp_extend
= {
23 .len
= sizeof(struct nf_conn_tstamp
),
24 .align
= __alignof__(struct nf_conn_tstamp
),
25 .id
= NF_CT_EXT_TSTAMP
,
28 void nf_conntrack_tstamp_pernet_init(struct net
*net
)
30 net
->ct
.sysctl_tstamp
= nf_ct_tstamp
;
33 int nf_conntrack_tstamp_init(void)
36 ret
= nf_ct_extend_register(&tstamp_extend
);
38 pr_err("Unable to register extension\n");
42 void nf_conntrack_tstamp_fini(void)
44 nf_ct_extend_unregister(&tstamp_extend
);