From 63c9a26264be108b52de087724673f8664570e34 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Wed, 8 Oct 2008 11:35:04 +0200 Subject: [PATCH] netfilter: netns nf_conntrack: per-netns unconfirmed list What is confirmed connection in one netns can very well be unconfirmed in another one. Signed-off-by: Alexey Dobriyan Signed-off-by: Patrick McHardy --- include/net/netfilter/nf_conntrack_core.h | 1 - include/net/netns/conntrack.h | 2 ++ net/netfilter/nf_conntrack_core.c | 7 ++++--- net/netfilter/nf_conntrack_helper.c | 2 +- 4 files changed, 7 insertions(+), 5 deletions(-) diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h index 1c373564396a..b4b45c541da6 100644 --- a/include/net/netfilter/nf_conntrack_core.h +++ b/include/net/netfilter/nf_conntrack_core.h @@ -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 */ diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h index e453a33f3e93..6ddf58e142a9 100644 --- a/include/net/netns/conntrack.h +++ b/include/net/netns/conntrack.h @@ -1,6 +1,7 @@ #ifndef __NETNS_CONNTRACK_H #define __NETNS_CONNTRACK_H +#include #include 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; }; diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index c188edea2492..2a105db13307 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -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; diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c index c793db810cd5..920e778539a9 100644 --- a/net/netfilter/nf_conntrack_helper.c +++ b/net/netfilter/nf_conntrack_helper.c @@ -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)