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| author | Gao feng <gaofeng@cn.fujitsu.com> | 2013-09-25 15:38:45 +0800 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-10-17 10:47:58 +0200 |
| commit | 26a89e435462bfdde586ad062bf190cdbfe53a49 (patch) | |
| tree | 8523b04b9963b9b03102304a86da5961031ccfc1 /net/ipv4 | |
| parent | ce4ff76c15a877a62097807a35518fc808c1853c (diff) | |
| download | op-kernel-dev-26a89e435462bfdde586ad062bf190cdbfe53a49.zip op-kernel-dev-26a89e435462bfdde586ad062bf190cdbfe53a49.tar.gz | |
netfilter: ipt_CLUSTERIP: make clusterip_list per net namespace
clusterip_configs should be per net namespace, so operate
cluster in one net namespace won't affect other net
namespace. right now, only allow to operate the clusterip_configs
of init net namespace.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/netfilter/ipt_CLUSTERIP.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c index e66b91b..8ef3e6f 100644 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c @@ -58,8 +58,6 @@ struct clusterip_config { struct rcu_head rcu; }; -static LIST_HEAD(clusterip_configs); - /* clusterip_lock protects the clusterip_configs list */ static DEFINE_SPINLOCK(clusterip_lock); @@ -70,6 +68,7 @@ static const struct file_operations clusterip_proc_fops; static int clusterip_net_id __read_mostly; struct clusterip_net { + struct list_head configs; #ifdef CONFIG_PROC_FS struct proc_dir_entry *procdir; #endif @@ -124,8 +123,9 @@ static struct clusterip_config * __clusterip_config_find(__be32 clusterip) { struct clusterip_config *c; + struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id); - list_for_each_entry_rcu(c, &clusterip_configs, list) { + list_for_each_entry_rcu(c, &cn->configs, list) { if (c->clusterip == clusterip) return c; } @@ -199,7 +199,7 @@ clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip, #endif spin_lock_bh(&clusterip_lock); - list_add_rcu(&c->list, &clusterip_configs); + list_add_rcu(&c->list, &cn->configs); spin_unlock_bh(&clusterip_lock); return c; @@ -709,9 +709,11 @@ static const struct file_operations clusterip_proc_fops = { static int clusterip_net_init(struct net *net) { -#ifdef CONFIG_PROC_FS struct clusterip_net *cn = net_generic(net, clusterip_net_id); + INIT_LIST_HEAD(&cn->configs); + +#ifdef CONFIG_PROC_FS cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net); if (!cn->procdir) { pr_err("Unable to proc dir entry\n"); |
