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yaml
---
r: 341863
b: refs/heads/master
c: 04dac01
h: refs/heads/master
i:
  341861: 10a63fe
  341859: 214059c
  341855: 1649d9e
v: v3
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Pablo Neira Ayuso committed Dec 3, 2012
1 parent 9c6ab6d commit 2d79aa3
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Showing 4 changed files with 12 additions and 19 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9076aea76538556224e7d73ab718f8841330818a
refs/heads/master: 04dac0111da7e1d284952cd415162451ffaa094d
2 changes: 1 addition & 1 deletion trunk/include/net/netfilter/nf_conntrack.h
Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,7 @@ __nf_conntrack_find(struct net *net, u16 zone,

extern int nf_conntrack_hash_check_insert(struct nf_conn *ct);
extern void nf_ct_delete_from_lists(struct nf_conn *ct);
extern void nf_ct_insert_dying_list(struct nf_conn *ct);
extern void nf_ct_dying_timeout(struct nf_conn *ct);

extern void nf_conntrack_flush_report(struct net *net, u32 pid, int report);

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25 changes: 9 additions & 16 deletions trunk/net/netfilter/nf_conntrack_core.c
Original file line number Diff line number Diff line change
Expand Up @@ -221,11 +221,9 @@ destroy_conntrack(struct nf_conntrack *nfct)
* too. */
nf_ct_remove_expectations(ct);

/* We overload first tuple to link into unconfirmed list. */
if (!nf_ct_is_confirmed(ct)) {
BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
}
/* We overload first tuple to link into unconfirmed or dying list.*/
BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);

NF_CT_STAT_INC(net, delete);
spin_unlock_bh(&nf_conntrack_lock);
Expand All @@ -247,6 +245,9 @@ void nf_ct_delete_from_lists(struct nf_conn *ct)
* Otherwise we can get spurious warnings. */
NF_CT_STAT_INC(net, delete_list);
clean_from_lists(ct);
/* add this conntrack to the dying list */
hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
&net->ct.dying);
spin_unlock_bh(&nf_conntrack_lock);
}
EXPORT_SYMBOL_GPL(nf_ct_delete_from_lists);
Expand All @@ -268,31 +269,23 @@ static void death_by_event(unsigned long ul_conntrack)
}
/* we've got the event delivered, now it's dying */
set_bit(IPS_DYING_BIT, &ct->status);
spin_lock(&nf_conntrack_lock);
hlist_nulls_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
spin_unlock(&nf_conntrack_lock);
nf_ct_put(ct);
}

void nf_ct_insert_dying_list(struct nf_conn *ct)
void nf_ct_dying_timeout(struct nf_conn *ct)
{
struct net *net = nf_ct_net(ct);
struct nf_conntrack_ecache *ecache = nf_ct_ecache_find(ct);

BUG_ON(ecache == NULL);

/* add this conntrack to the dying list */
spin_lock_bh(&nf_conntrack_lock);
hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
&net->ct.dying);
spin_unlock_bh(&nf_conntrack_lock);
/* set a new timer to retry event delivery */
setup_timer(&ecache->timeout, death_by_event, (unsigned long)ct);
ecache->timeout.expires = jiffies +
(random32() % net->ct.sysctl_events_retry_timeout);
add_timer(&ecache->timeout);
}
EXPORT_SYMBOL_GPL(nf_ct_insert_dying_list);
EXPORT_SYMBOL_GPL(nf_ct_dying_timeout);

static void death_by_timeout(unsigned long ul_conntrack)
{
Expand All @@ -307,7 +300,7 @@ static void death_by_timeout(unsigned long ul_conntrack)
unlikely(nf_conntrack_event(IPCT_DESTROY, ct) < 0)) {
/* destroy event was not delivered */
nf_ct_delete_from_lists(ct);
nf_ct_insert_dying_list(ct);
nf_ct_dying_timeout(ct);
return;
}
set_bit(IPS_DYING_BIT, &ct->status);
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2 changes: 1 addition & 1 deletion trunk/net/netfilter/nf_conntrack_netlink.c
Original file line number Diff line number Diff line change
Expand Up @@ -989,7 +989,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
nlmsg_report(nlh)) < 0) {
nf_ct_delete_from_lists(ct);
/* we failed to report the event, try later */
nf_ct_insert_dying_list(ct);
nf_ct_dying_timeout(ct);
nf_ct_put(ct);
return 0;
}
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