1 /*
2 * (C) 2008 Krzysztof Piotr Oledzki <ole@ans.pl>
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.
7 */
8
9 #ifndef _NF_CONNTRACK_ACCT_H
10 #define _NF_CONNTRACK_ACCT_H
11 #include <net/net_namespace.h>
12 #include <linux/netfilter/nf_conntrack_common.h>
13 #include <linux/netfilter/nf_conntrack_tuple_common.h>
14 #include <net/netfilter/nf_conntrack.h>
15 #include <net/netfilter/nf_conntrack_extend.h>
16
17 struct nf_conn_counter {
18 u_int64_t packets;
19 u_int64_t bytes;
20 };
21
22 static inline
23 struct nf_conn_counter *nf_conn_acct_find(const struct nf_conn *ct)
24 {
25 return nf_ct_ext_find(ct, NF_CT_EXT_ACCT);
26 }
27
28 static inline
29 struct nf_conn_counter *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
30 {
31 struct net *net = nf_ct_net(ct);
32 struct nf_conn_counter *acct;
33
34 if (!net->ct.sysctl_acct)
35 return NULL;
36
37 acct = nf_ct_ext_add(ct, NF_CT_EXT_ACCT, gfp);
38 if (!acct)
39 pr_debug("failed to add accounting extension area");
40
41
42 return acct;
43 };
44
45 extern unsigned int
46 seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir);
47
48 extern int nf_conntrack_acct_init(struct net *net);
49 extern void nf_conntrack_acct_fini(struct net *net);
50
51 #endif /* _NF_CONNTRACK_ACCT_H */
52
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