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netfilter: ecache: move to separate structure

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This makes it easier for a followup patch to only expose ecache
related parts of nf_conntrack_net structure.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2022-03-23 14:22:01 +01:00 committed by Pablo Neira Ayuso
parent 10377d4228
commit 9027ce0b07
2 changed files with 16 additions and 11 deletions
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8
include/net/netfilter/nf_conntrack.h
View file

@ -43,6 +43,11 @@ union nf_conntrack_expect_proto {
/* insert expect proto private data here */
};
struct nf_conntrack_net_ecache {
struct delayed_work dwork;
struct netns_ct *ct_net;
};
struct nf_conntrack_net {
/* only used when new connection is allocated: */
atomic_t count;
@ -58,8 +63,7 @@ struct nf_conntrack_net {
struct ctl_table_header *sysctl_header;
#endif
#ifdef CONFIG_NF_CONNTRACK_EVENTS
struct delayed_work ecache_dwork;
struct netns_ct *ct_net;
struct nf_conntrack_net_ecache ecache;
#endif
};

19
net/netfilter/nf_conntrack_ecache.c
View file

@ -96,8 +96,8 @@ static enum retry_state ecache_work_evict_list(struct ct_pcpu *pcpu)
static void ecache_work(struct work_struct *work)
{
struct nf_conntrack_net *cnet = container_of(work, struct nf_conntrack_net, ecache_dwork.work);
struct netns_ct *ctnet = cnet->ct_net;
struct nf_conntrack_net *cnet = container_of(work, struct nf_conntrack_net, ecache.dwork.work);
struct netns_ct *ctnet = cnet->ecache.ct_net;
int cpu, delay = -1;
struct ct_pcpu *pcpu;
@ -127,7 +127,7 @@ static void ecache_work(struct work_struct *work)
ctnet->ecache_dwork_pending = delay > 0;
if (delay >= 0)
schedule_delayed_work(&cnet->ecache_dwork, delay);
schedule_delayed_work(&cnet->ecache.dwork, delay);
}
static int __nf_conntrack_eventmask_report(struct nf_conntrack_ecache *e,
@ -293,12 +293,12 @@ void nf_conntrack_ecache_work(struct net *net, enum nf_ct_ecache_state state)
struct nf_conntrack_net *cnet = nf_ct_pernet(net);
if (state == NFCT_ECACHE_DESTROY_FAIL &&
!delayed_work_pending(&cnet->ecache_dwork)) {
schedule_delayed_work(&cnet->ecache_dwork, HZ);
!delayed_work_pending(&cnet->ecache.dwork)) {
schedule_delayed_work(&cnet->ecache.dwork, HZ);
net->ct.ecache_dwork_pending = true;
} else if (state == NFCT_ECACHE_DESTROY_SENT) {
net->ct.ecache_dwork_pending = false;
mod_delayed_work(system_wq, &cnet->ecache_dwork, 0);
mod_delayed_work(system_wq, &cnet->ecache.dwork, 0);
}
}
@ -310,8 +310,9 @@ void nf_conntrack_ecache_pernet_init(struct net *net)
struct nf_conntrack_net *cnet = nf_ct_pernet(net);
net->ct.sysctl_events = nf_ct_events;
cnet->ct_net = &net->ct;
INIT_DELAYED_WORK(&cnet->ecache_dwork, ecache_work);
cnet->ecache.ct_net = &net->ct;
INIT_DELAYED_WORK(&cnet->ecache.dwork, ecache_work);
BUILD_BUG_ON(__IPCT_MAX >= 16); /* e->ctmask is u16 */
}
@ -320,5 +321,5 @@ void nf_conntrack_ecache_pernet_fini(struct net *net)
{
struct nf_conntrack_net *cnet = nf_ct_pernet(net);
cancel_delayed_work_sync(&cnet->ecache_dwork);
cancel_delayed_work_sync(&cnet->ecache.dwork);
}