[mirror_ubuntu-jammy-kernel.git] / net / netfilter / nf_conntrack_timestamp.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * (C) 2010 Pablo Neira Ayuso <pablo@netfilter.org>
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/netfilter.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>

#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_extend.h>
#include <net/netfilter/nf_conntrack_timestamp.h>

static bool nf_ct_tstamp __read_mostly;

module_param_named(tstamp, nf_ct_tstamp, bool, 0644);
MODULE_PARM_DESC(tstamp, "Enable connection tracking flow timestamping.");

static const struct nf_ct_ext_type tstamp_extend = {
	.len	= sizeof(struct nf_conn_tstamp),
	.align	= __alignof__(struct nf_conn_tstamp),
	.id	= NF_CT_EXT_TSTAMP,
};

void nf_conntrack_tstamp_pernet_init(struct net *net)
{
	net->ct.sysctl_tstamp = nf_ct_tstamp;
}

int nf_conntrack_tstamp_init(void)
{
	int ret;
	ret = nf_ct_extend_register(&tstamp_extend);
	if (ret < 0)
		pr_err("Unable to register extension\n");
	return ret;
}

void nf_conntrack_tstamp_fini(void)
{
	nf_ct_extend_unregister(&tstamp_extend);
}
Commit	Line	Data
e97150df	1	// SPDX-License-Identifier: GPL-2.0-or-later
a992ca2a PNA	2	/*
a992ca2a PNA	3	* (C) 2010 Pablo Neira Ayuso <pablo@netfilter.org>
a992ca2a PNA	4	*/
a992ca2a PNA	5
5191d70f AS	6	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
5191d70f AS	7
a992ca2a PNA	8	#include <linux/netfilter.h>
	9	#include <linux/slab.h>
	10	#include <linux/kernel.h>
	11	#include <linux/moduleparam.h>
	12
	13	#include <net/netfilter/nf_conntrack.h>
	14	#include <net/netfilter/nf_conntrack_extend.h>
	15	#include <net/netfilter/nf_conntrack_timestamp.h>
	16
eb939922	17	static bool nf_ct_tstamp __read_mostly;
a992ca2a PNA	18
	19	module_param_named(tstamp, nf_ct_tstamp, bool, 0644);
	20	MODULE_PARM_DESC(tstamp, "Enable connection tracking flow timestamping.");
	21
23f671a1	22	static const struct nf_ct_ext_type tstamp_extend = {
a992ca2a PNA	23	.len = sizeof(struct nf_conn_tstamp),
	24	.align = __alignof__(struct nf_conn_tstamp),
	25	.id = NF_CT_EXT_TSTAMP,
	26	};
	27
fc3893fd	28	void nf_conntrack_tstamp_pernet_init(struct net *net)
a992ca2a	29	{
a992ca2a	30	net->ct.sysctl_tstamp = nf_ct_tstamp;
73f4001a	31	}
a992ca2a	32
73f4001a G	33	int nf_conntrack_tstamp_init(void)
	34	{
	35	int ret;
	36	ret = nf_ct_extend_register(&tstamp_extend);
a992ca2a	37	if (ret < 0)
5191d70f	38	pr_err("Unable to register extension\n");
a992ca2a PNA	39	return ret;
	40	}
	41
73f4001a	42	void nf_conntrack_tstamp_fini(void)
a992ca2a	43	{
73f4001a	44	nf_ct_extend_unregister(&tstamp_extend);
a992ca2a	45	}