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netfilter: netns nf_conntrack: per-netns unconfirmed list

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What is confirmed connection in one netns can very well be unconfirmed
in another one.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Alexey Dobriyan 2008-10-08 11:35:04 +02:00 committed by Patrick McHardy
parent 9b03f38d04
commit 63c9a26264
4 changed files with 7 additions and 5 deletions
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1
include/net/netfilter/nf_conntrack_core.h
View File

@ -72,6 +72,5 @@ print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_l4proto *proto);
extern spinlock_t nf_conntrack_lock ;
extern struct hlist_head unconfirmed;
#endif /* _NF_CONNTRACK_CORE_H */

2
include/net/netns/conntrack.h
View File

@ -1,6 +1,7 @@
#ifndef __NETNS_CONNTRACK_H
#define __NETNS_CONNTRACK_H
#include <linux/list.h>
#include <asm/atomic.h>
struct netns_ct {
@ -8,6 +9,7 @@ struct netns_ct {
unsigned int expect_count;
struct hlist_head *hash;
struct hlist_head *expect_hash;
struct hlist_head unconfirmed;
int hash_vmalloc;
int expect_vmalloc;
};

7
net/netfilter/nf_conntrack_core.c
View File

@ -54,7 +54,6 @@ struct nf_conn nf_conntrack_untracked __read_mostly;
EXPORT_SYMBOL_GPL(nf_conntrack_untracked);
unsigned int nf_ct_log_invalid __read_mostly;
HLIST_HEAD(unconfirmed);
static struct kmem_cache *nf_conntrack_cachep __read_mostly;
DEFINE_PER_CPU(struct ip_conntrack_stat, nf_conntrack_stat);
@ -596,7 +595,8 @@ init_conntrack(struct net *net,
}
/* Overload tuple linked list to put us in unconfirmed list. */
hlist_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode, &unconfirmed);
hlist_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode,
&net->ct.unconfirmed);
spin_unlock_bh(&nf_conntrack_lock);
@ -957,7 +957,7 @@ get_next_corpse(struct net *net, int (*iter)(struct nf_conn *i, void *data),
goto found;
}
}
hlist_for_each_entry(h, n, &unconfirmed, hnode) {
hlist_for_each_entry(h, n, &net->ct.unconfirmed, hnode) {
ct = nf_ct_tuplehash_to_ctrack(h);
if (iter(ct, data))
set_bit(IPS_DYING_BIT, &ct->status);
@ -1154,6 +1154,7 @@ int nf_conntrack_init(struct net *net)
printk(KERN_ERR "Unable to create nf_conntrack_hash\n");
goto err_out;
}
INIT_HLIST_HEAD(&net->ct.unconfirmed);
nf_conntrack_max = max_factor * nf_conntrack_htable_size;

2
net/netfilter/nf_conntrack_helper.c
View File

@ -156,7 +156,7 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me)
}
/* Get rid of expecteds, set helpers to NULL. */
hlist_for_each_entry(h, n, &unconfirmed, hnode)
hlist_for_each_entry(h, n, &init_net.ct.unconfirmed, hnode)
unhelp(h, me);
for (i = 0; i < nf_conntrack_htable_size; i++) {
hlist_for_each_entry(h, n, &init_net.ct.hash[i], hnode)