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netns xfrm: per-netns policy list 

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2008-11-25 17:22:11 -08:00 committed by David S. Miller
parent 0331b1f383
commit adfcf0b27e
2 changed files with 8 additions and 6 deletions
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2
include/net/netns/xfrm.h
View File

@ -25,6 +25,8 @@ struct netns_xfrm {
struct work_struct state_gc_work;
wait_queue_head_t km_waitq;
struct list_head policy_all;
};
#endif

12
net/xfrm/xfrm_policy.c
View File

@ -46,7 +46,6 @@ EXPORT_SYMBOL(xfrm_cfg_mutex);
static DEFINE_RWLOCK(xfrm_policy_lock);
static struct list_head xfrm_policy_all;
unsigned int xfrm_policy_count[XFRM_POLICY_MAX*2];
EXPORT_SYMBOL(xfrm_policy_count);
@ -615,7 +614,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
policy->curlft.use_time = 0;
if (!mod_timer(&policy->timer, jiffies + HZ))
xfrm_pol_hold(policy);
list_add(&policy->walk.all, &xfrm_policy_all);
list_add(&policy->walk.all, &init_net.xfrm.policy_all);
write_unlock_bh(&xfrm_policy_lock);
if (delpol)
@ -881,10 +880,10 @@ int xfrm_policy_walk(struct xfrm_policy_walk *walk,
write_lock_bh(&xfrm_policy_lock);
if (list_empty(&walk->walk.all))
x = list_first_entry(&xfrm_policy_all, struct xfrm_policy_walk_entry, all);
x = list_first_entry(&init_net.xfrm.policy_all, struct xfrm_policy_walk_entry, all);
else
x = list_entry(&walk->walk.all, struct xfrm_policy_walk_entry, all);
list_for_each_entry_from(x, &xfrm_policy_all, all) {
list_for_each_entry_from(x, &init_net.xfrm.policy_all, all) {
if (x->dead)
continue;
pol = container_of(x, struct xfrm_policy, walk);
@ -1086,7 +1085,7 @@ static void __xfrm_policy_link(struct xfrm_policy *pol, int dir)
struct hlist_head *chain = policy_hash_bysel(&pol->selector,
pol->family, dir);
list_add(&pol->walk.all, &xfrm_policy_all);
list_add(&pol->walk.all, &init_net.xfrm.policy_all);
hlist_add_head(&pol->bydst, chain);
hlist_add_head(&pol->byidx, xfrm_policy_byidx+idx_hash(pol->index));
xfrm_policy_count[dir]++;
@ -2426,7 +2425,7 @@ static int __net_init xfrm_policy_init(struct net *net)
panic("XFRM: failed to allocate bydst hash\n");
}
INIT_LIST_HEAD(&xfrm_policy_all);
INIT_LIST_HEAD(&net->xfrm.policy_all);
if (net_eq(net, &init_net))
register_netdevice_notifier(&xfrm_dev_notifier);
return 0;
@ -2434,6 +2433,7 @@ static int __net_init xfrm_policy_init(struct net *net)
static void xfrm_policy_fini(struct net *net)
{
WARN_ON(!list_empty(&net->xfrm.policy_all));
}
static int __net_init xfrm_net_init(struct net *net)