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Elixir Cross Referencer

 * (C) 2008 Krzysztof Piotr Oledzki <>
 * 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.

#include <net/net_namespace.h>
#include <linux/netfilter/nf_conntrack_common.h>
#include <linux/netfilter/nf_conntrack_tuple_common.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_extend.h>

struct nf_conn_counter {
	atomic64_t packets;
	atomic64_t bytes;

static inline
struct nf_conn_counter *nf_conn_acct_find(const struct nf_conn *ct)
	return nf_ct_ext_find(ct, NF_CT_EXT_ACCT);

static inline
struct nf_conn_counter *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
	struct net *net = nf_ct_net(ct);
	struct nf_conn_counter *acct;

	if (!net->ct.sysctl_acct)
		return NULL;

	acct = nf_ct_ext_add(ct, NF_CT_EXT_ACCT, gfp);
	if (!acct)
		pr_debug("failed to add accounting extension area");

	return acct;

extern unsigned int
seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir);

/* Check if connection tracking accounting is enabled */
static inline bool nf_ct_acct_enabled(struct net *net)
	return net->ct.sysctl_acct != 0;

/* Enable/disable connection tracking accounting */
static inline void nf_ct_set_acct(struct net *net, bool enable)
	net->ct.sysctl_acct = enable;

extern int nf_conntrack_acct_pernet_init(struct net *net);
extern void nf_conntrack_acct_pernet_fini(struct net *net);

extern int nf_conntrack_acct_init(void);
extern void nf_conntrack_acct_fini(void);
#endif /* _NF_CONNTRACK_ACCT_H */