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Diffstat (limited to 'net/sched/act_nat.c')
-rw-r--r--net/sched/act_nat.c46
1 files changed, 11 insertions, 35 deletions
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 876f0ef2969..270a030d5fd 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -30,15 +30,6 @@
#define NAT_TAB_MASK 15
-static struct tcf_common *tcf_nat_ht[NAT_TAB_MASK + 1];
-static u32 nat_idx_gen;
-static DEFINE_RWLOCK(nat_lock);
-
-static struct tcf_hashinfo nat_hash_info = {
- .htab = tcf_nat_ht,
- .hmask = NAT_TAB_MASK,
- .lock = &nat_lock,
-};
static const struct nla_policy nat_policy[TCA_NAT_MAX + 1] = {
[TCA_NAT_PARMS] = { .len = sizeof(struct tc_nat) },
@@ -51,7 +42,6 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
struct tc_nat *parm;
int ret = 0, err;
struct tcf_nat *p;
- struct tcf_common *pc;
if (nla == NULL)
return -EINVAL;
@@ -64,21 +54,19 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
return -EINVAL;
parm = nla_data(tb[TCA_NAT_PARMS]);
- pc = tcf_hash_check(parm->index, a, bind, &nat_hash_info);
- if (!pc) {
- pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
- &nat_idx_gen, &nat_hash_info);
- if (IS_ERR(pc))
- return PTR_ERR(pc);
- p = to_tcf_nat(pc);
+ if (!tcf_hash_check(parm->index, a, bind)) {
+ ret = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
+ if (ret)
+ return ret;
ret = ACT_P_CREATED;
} else {
- p = to_tcf_nat(pc);
- if (!ovr) {
- tcf_hash_release(pc, bind, &nat_hash_info);
+ if (bind)
+ return 0;
+ tcf_hash_release(a, bind);
+ if (!ovr)
return -EEXIST;
- }
}
+ p = to_tcf_nat(a);
spin_lock_bh(&p->tcf_lock);
p->old_addr = parm->old_addr;
@@ -90,18 +78,11 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
spin_unlock_bh(&p->tcf_lock);
if (ret == ACT_P_CREATED)
- tcf_hash_insert(pc, &nat_hash_info);
+ tcf_hash_insert(a);
return ret;
}
-static int tcf_nat_cleanup(struct tc_action *a, int bind)
-{
- struct tcf_nat *p = a->priv;
-
- return tcf_hash_release(&p->common, bind, &nat_hash_info);
-}
-
static int tcf_nat(struct sk_buff *skb, const struct tc_action *a,
struct tcf_result *res)
{
@@ -301,16 +282,11 @@ nla_put_failure:
static struct tc_action_ops act_nat_ops = {
.kind = "nat",
- .hinfo = &nat_hash_info,
.type = TCA_ACT_NAT,
- .capab = TCA_CAP_NONE,
.owner = THIS_MODULE,
.act = tcf_nat,
.dump = tcf_nat_dump,
- .cleanup = tcf_nat_cleanup,
- .lookup = tcf_hash_search,
.init = tcf_nat_init,
- .walk = tcf_generic_walker
};
MODULE_DESCRIPTION("Stateless NAT actions");
@@ -318,7 +294,7 @@ MODULE_LICENSE("GPL");
static int __init nat_init_module(void)
{
- return tcf_register_action(&act_nat_ops);
+ return tcf_register_action(&act_nat_ops, NAT_TAB_MASK);
}
static void __exit nat_cleanup_module(void)