Commit | Line | Data |
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a992ca2a PNA |
1 | /* |
2 | * (C) 2010 Pablo Neira Ayuso <pablo@netfilter.org> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation (or any later at your option). | |
7 | */ | |
8 | ||
5191d70f AS |
9 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
10 | ||
a992ca2a PNA |
11 | #include <linux/netfilter.h> |
12 | #include <linux/slab.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/moduleparam.h> | |
15 | ||
16 | #include <net/netfilter/nf_conntrack.h> | |
17 | #include <net/netfilter/nf_conntrack_extend.h> | |
18 | #include <net/netfilter/nf_conntrack_timestamp.h> | |
19 | ||
eb939922 | 20 | static bool nf_ct_tstamp __read_mostly; |
a992ca2a PNA |
21 | |
22 | module_param_named(tstamp, nf_ct_tstamp, bool, 0644); | |
23 | MODULE_PARM_DESC(tstamp, "Enable connection tracking flow timestamping."); | |
24 | ||
23f671a1 | 25 | static const struct nf_ct_ext_type tstamp_extend = { |
a992ca2a PNA |
26 | .len = sizeof(struct nf_conn_tstamp), |
27 | .align = __alignof__(struct nf_conn_tstamp), | |
28 | .id = NF_CT_EXT_TSTAMP, | |
29 | }; | |
30 | ||
fc3893fd | 31 | void nf_conntrack_tstamp_pernet_init(struct net *net) |
a992ca2a | 32 | { |
a992ca2a | 33 | net->ct.sysctl_tstamp = nf_ct_tstamp; |
73f4001a | 34 | } |
a992ca2a | 35 | |
73f4001a G |
36 | int nf_conntrack_tstamp_init(void) |
37 | { | |
38 | int ret; | |
39 | ret = nf_ct_extend_register(&tstamp_extend); | |
a992ca2a | 40 | if (ret < 0) |
5191d70f | 41 | pr_err("Unable to register extension\n"); |
a992ca2a PNA |
42 | return ret; |
43 | } | |
44 | ||
73f4001a | 45 | void nf_conntrack_tstamp_fini(void) |
a992ca2a | 46 | { |
73f4001a | 47 | nf_ct_extend_unregister(&tstamp_extend); |
a992ca2a | 48 | } |