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- // 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);
- }
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