/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* (C) 2008 Krzysztof Piotr Oledzki <ole@ans.pl>
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*/
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#ifndef _NF_CONNTRACK_ACCT_H
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#define _NF_CONNTRACK_ACCT_H
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#include <net/net_namespace.h>
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#include <linux/netfilter/nf_conntrack_common.h>
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#include <linux/netfilter/nf_conntrack_tuple_common.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_extend.h>
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struct nf_conn_counter {
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atomic64_t packets;
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atomic64_t bytes;
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};
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struct nf_conn_acct {
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struct nf_conn_counter counter[IP_CT_DIR_MAX];
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};
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static inline
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struct nf_conn_acct *nf_conn_acct_find(const struct nf_conn *ct)
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{
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return nf_ct_ext_find(ct, NF_CT_EXT_ACCT);
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}
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static inline
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struct nf_conn_acct *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
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{
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#if IS_ENABLED(CONFIG_NF_CONNTRACK)
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struct net *net = nf_ct_net(ct);
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struct nf_conn_acct *acct;
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if (!net->ct.sysctl_acct)
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return NULL;
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acct = nf_ct_ext_add(ct, NF_CT_EXT_ACCT, gfp);
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if (!acct)
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pr_debug("failed to add accounting extension area");
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return acct;
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#else
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return NULL;
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#endif
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}
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/* Check if connection tracking accounting is enabled */
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static inline bool nf_ct_acct_enabled(struct net *net)
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{
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#if IS_ENABLED(CONFIG_NF_CONNTRACK)
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return net->ct.sysctl_acct != 0;
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#else
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return false;
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#endif
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}
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/* Enable/disable connection tracking accounting */
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static inline void nf_ct_set_acct(struct net *net, bool enable)
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{
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#if IS_ENABLED(CONFIG_NF_CONNTRACK)
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net->ct.sysctl_acct = enable;
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#endif
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}
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void nf_ct_acct_add(struct nf_conn *ct, u32 dir, unsigned int packets,
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unsigned int bytes);
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static inline void nf_ct_acct_update(struct nf_conn *ct, u32 dir,
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unsigned int bytes)
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{
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#if IS_ENABLED(CONFIG_NF_CONNTRACK)
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nf_ct_acct_add(ct, dir, 1, bytes);
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#endif
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}
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void nf_conntrack_acct_pernet_init(struct net *net);
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int nf_conntrack_acct_init(void);
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void nf_conntrack_acct_fini(void);
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#endif /* _NF_CONNTRACK_ACCT_H */
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