fc3893fd5c
after moving sysctl handling into single place, the init functions can't fail anymore and some of the fini functions are empty. Remove them and change return type to void. This also simplifies error unwinding in conntrack module init path. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
|
|
* (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.
|
|
*/
|
|
|
|
#ifndef _NF_CONNTRACK_ACCT_H
|
|
#define _NF_CONNTRACK_ACCT_H
|
|
#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;
|
|
};
|
|
|
|
struct nf_conn_acct {
|
|
struct nf_conn_counter counter[IP_CT_DIR_MAX];
|
|
};
|
|
|
|
static inline
|
|
struct nf_conn_acct *nf_conn_acct_find(const struct nf_conn *ct)
|
|
{
|
|
return nf_ct_ext_find(ct, NF_CT_EXT_ACCT);
|
|
}
|
|
|
|
static inline
|
|
struct nf_conn_acct *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
|
|
{
|
|
struct net *net = nf_ct_net(ct);
|
|
struct nf_conn_acct *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;
|
|
};
|
|
|
|
/* 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;
|
|
}
|
|
|
|
void nf_conntrack_acct_pernet_init(struct net *net);
|
|
|
|
int nf_conntrack_acct_init(void);
|
|
void nf_conntrack_acct_fini(void);
|
|
#endif /* _NF_CONNTRACK_ACCT_H */
|