Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 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 |
Alexey Dobriyan | d716a4d | 2008-10-08 11:35:09 +0200 | [diff] [blame] | 11 | #include <net/net_namespace.h> |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 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 { |
Eric Dumazet | b3e0bfa | 2011-12-14 14:45:20 +0100 | [diff] [blame] | 18 | atomic64_t packets; |
| 19 | atomic64_t bytes; |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 20 | }; |
| 21 | |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 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 | { |
Alexey Dobriyan | d716a4d | 2008-10-08 11:35:09 +0200 | [diff] [blame] | 31 | struct net *net = nf_ct_net(ct); |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 32 | struct nf_conn_counter *acct; |
| 33 | |
Alexey Dobriyan | d716a4d | 2008-10-08 11:35:09 +0200 | [diff] [blame] | 34 | if (!net->ct.sysctl_acct) |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 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 | |
Tim Gardner | a875620 | 2010-06-25 14:44:07 +0200 | [diff] [blame] | 48 | /* Check if connection tracking accounting is enabled */ |
| 49 | static inline bool nf_ct_acct_enabled(struct net *net) |
| 50 | { |
| 51 | return net->ct.sysctl_acct != 0; |
| 52 | } |
| 53 | |
| 54 | /* Enable/disable connection tracking accounting */ |
| 55 | static inline void nf_ct_set_acct(struct net *net, bool enable) |
| 56 | { |
| 57 | net->ct.sysctl_acct = enable; |
| 58 | } |
| 59 | |
Alexey Dobriyan | d716a4d | 2008-10-08 11:35:09 +0200 | [diff] [blame] | 60 | extern int nf_conntrack_acct_init(struct net *net); |
| 61 | extern void nf_conntrack_acct_fini(struct net *net); |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 62 | |
| 63 | #endif /* _NF_CONNTRACK_ACCT_H */ |