// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* (C) 2010 Pablo Neira Ayuso <pablo@netfilter.org>
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/netfilter.h>
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/moduleparam.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_extend.h>
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#include <net/netfilter/nf_conntrack_timestamp.h>
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static bool nf_ct_tstamp __read_mostly;
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module_param_named(tstamp, nf_ct_tstamp, bool, 0644);
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MODULE_PARM_DESC(tstamp, "Enable connection tracking flow timestamping.");
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static const struct nf_ct_ext_type tstamp_extend = {
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.len = sizeof(struct nf_conn_tstamp),
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.align = __alignof__(struct nf_conn_tstamp),
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.id = NF_CT_EXT_TSTAMP,
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};
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void nf_conntrack_tstamp_pernet_init(struct net *net)
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{
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net->ct.sysctl_tstamp = nf_ct_tstamp;
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}
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int nf_conntrack_tstamp_init(void)
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{
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int ret;
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ret = nf_ct_extend_register(&tstamp_extend);
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if (ret < 0)
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pr_err("Unable to register extension\n");
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return ret;
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}
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void nf_conntrack_tstamp_fini(void)
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{
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nf_ct_extend_unregister(&tstamp_extend);
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}
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