1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Accounting handling for netfilter. */
5 * (C) 2008 Krzysztof Piotr Oledzki <ole@ans.pl>
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
10 #include <linux/netfilter.h>
11 #include <linux/slab.h>
12 #include <linux/kernel.h>
13 #include <linux/moduleparam.h>
14 #include <linux/export.h>
16 #include <net/netfilter/nf_conntrack.h>
17 #include <net/netfilter/nf_conntrack_extend.h>
18 #include <net/netfilter/nf_conntrack_acct.h>
20 static bool nf_ct_acct __read_mostly;
22 module_param_named(acct, nf_ct_acct, bool, 0644);
23 MODULE_PARM_DESC(acct, "Enable connection tracking flow accounting.");
25 static const struct nf_ct_ext_type acct_extend = {
26 .len = sizeof(struct nf_conn_acct),
27 .align = __alignof__(struct nf_conn_acct),
31 void nf_conntrack_acct_pernet_init(struct net *net)
33 net->ct.sysctl_acct = nf_ct_acct;
36 int nf_conntrack_acct_init(void)
38 int ret = nf_ct_extend_register(&acct_extend);
40 pr_err("Unable to register extension\n");
44 void nf_conntrack_acct_fini(void)
46 nf_ct_extend_unregister(&acct_extend);