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netfilter: conntrack: export nf_ct_acct_update() 

This function allows you to update the conntrack counters.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2020-03-24 12:34:33 +01:00
parent 73348fed35
commit 8ac2bd3577
2 changed files with 9 additions and 8 deletions
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2
include/net/netfilter/nf_conntrack_acct.h
View File

@ -65,6 +65,8 @@ static inline void nf_ct_set_acct(struct net *net, bool enable)
#endif
}
void nf_ct_acct_update(struct nf_conn *ct, u32 dir, unsigned int bytes);
void nf_conntrack_acct_pernet_init(struct net *net);
int nf_conntrack_acct_init(void);

15
net/netfilter/nf_conntrack_core.c
View File

@ -865,9 +865,7 @@ out:
}
EXPORT_SYMBOL_GPL(nf_conntrack_hash_check_insert);
static inline void nf_ct_acct_update(struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int len)
void nf_ct_acct_update(struct nf_conn *ct, u32 dir, unsigned int bytes)
{
struct nf_conn_acct *acct;
@ -875,10 +873,11 @@ static inline void nf_ct_acct_update(struct nf_conn *ct,
if (acct) {
struct nf_conn_counter *counter = acct->counter;
atomic64_inc(&counter[CTINFO2DIR(ctinfo)].packets);
atomic64_add(len, &counter[CTINFO2DIR(ctinfo)].bytes);
atomic64_inc(&counter[dir].packets);
atomic64_add(bytes, &counter[dir].bytes);
}
}
EXPORT_SYMBOL_GPL(nf_ct_acct_update);
static void nf_ct_acct_merge(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
const struct nf_conn *loser_ct)
@ -892,7 +891,7 @@ static void nf_ct_acct_merge(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
/* u32 should be fine since we must have seen one packet. */
bytes = atomic64_read(&counter[CTINFO2DIR(ctinfo)].bytes);
nf_ct_acct_update(ct, ctinfo, bytes);
nf_ct_acct_update(ct, CTINFO2DIR(ctinfo), bytes);
}
}
@ -1933,7 +1932,7 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
WRITE_ONCE(ct->timeout, extra_jiffies);
acct:
if (do_acct)
nf_ct_acct_update(ct, ctinfo, skb->len);
nf_ct_acct_update(ct, CTINFO2DIR(ctinfo), skb->len);
}
EXPORT_SYMBOL_GPL(__nf_ct_refresh_acct);
@ -1941,7 +1940,7 @@ bool nf_ct_kill_acct(struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
const struct sk_buff *skb)
{
nf_ct_acct_update(ct, ctinfo, skb->len);
nf_ct_acct_update(ct, CTINFO2DIR(ctinfo), skb->len);
return nf_ct_delete(ct, 0, 0);
}