| /* Accouting handling for netfilter. */ |
| |
| /* |
| * (C) 2008 Krzysztof Piotr Oledzki <ole@ans.pl> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/netfilter.h> |
| #include <linux/slab.h> |
| #include <linux/kernel.h> |
| #include <linux/moduleparam.h> |
| #include <linux/export.h> |
| |
| #include <net/netfilter/nf_conntrack.h> |
| #include <net/netfilter/nf_conntrack_extend.h> |
| #include <net/netfilter/nf_conntrack_acct.h> |
| |
| static bool nf_ct_acct __read_mostly; |
| |
| module_param_named(acct, nf_ct_acct, bool, 0644); |
| MODULE_PARM_DESC(acct, "Enable connection tracking flow accounting."); |
| |
| static const struct nf_ct_ext_type acct_extend = { |
| .len = sizeof(struct nf_conn_acct), |
| .align = __alignof__(struct nf_conn_acct), |
| .id = NF_CT_EXT_ACCT, |
| }; |
| |
| void nf_conntrack_acct_pernet_init(struct net *net) |
| { |
| net->ct.sysctl_acct = nf_ct_acct; |
| } |
| |
| int nf_conntrack_acct_init(void) |
| { |
| int ret = nf_ct_extend_register(&acct_extend); |
| if (ret < 0) |
| pr_err("Unable to register extension\n"); |
| return ret; |
| } |
| |
| void nf_conntrack_acct_fini(void) |
| { |
| nf_ct_extend_unregister(&acct_extend); |
| } |