提交 c7f5ea3a 编写于 作者: D David S. Miller

[XFRM]: Do not flush all bundles on SA insert.

Instead, simply set all potentially aliasing existing xfrm_state
objects to have the current generation counter value.

This will make routes get relooked up the next time an existing
route mentioning these aliased xfrm_state objects gets used,
via xfrm_dst_check().
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 2575b654
......@@ -996,7 +996,6 @@ struct xfrm_state * xfrm_find_acq(u8 mode, u32 reqid, u8 proto,
extern void xfrm_policy_flush(u8 type);
extern int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol);
extern int xfrm_flush_bundles(void);
extern void xfrm_flush_all_bundles(void);
extern int xfrm_bundle_ok(struct xfrm_dst *xdst, struct flowi *fl, int family, int strict);
extern void xfrm_init_pmtu(struct dst_entry *dst);
......
......@@ -1478,16 +1478,6 @@ int xfrm_flush_bundles(void)
return 0;
}
static int always_true(struct dst_entry *dst)
{
return 1;
}
void xfrm_flush_all_bundles(void)
{
xfrm_prune_bundles(always_true);
}
void xfrm_init_pmtu(struct dst_entry *dst)
{
do {
......
......@@ -761,13 +761,30 @@ static void __xfrm_state_insert(struct xfrm_state *x)
schedule_work(&xfrm_hash_work);
}
/* xfrm_state_lock is held */
static void __xfrm_state_bump_genids(struct xfrm_state *xnew)
{
unsigned short family = xnew->props.family;
u32 reqid = xnew->props.reqid;
struct xfrm_state *x;
struct hlist_node *entry;
unsigned int h;
h = xfrm_dst_hash(&xnew->id.daddr, reqid, family);
hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
if (x->props.family == family &&
x->props.reqid == reqid &&
!xfrm_addr_cmp(&x->id.daddr, &xnew->id.daddr, family))
x->genid = xfrm_state_genid;
}
}
void xfrm_state_insert(struct xfrm_state *x)
{
spin_lock_bh(&xfrm_state_lock);
__xfrm_state_bump_genids(x);
__xfrm_state_insert(x);
spin_unlock_bh(&xfrm_state_lock);
xfrm_flush_all_bundles();
}
EXPORT_SYMBOL(xfrm_state_insert);
......@@ -889,15 +906,13 @@ int xfrm_state_add(struct xfrm_state *x)
x->id.proto,
&x->id.daddr, &x->props.saddr, 0);
__xfrm_state_bump_genids(x);
__xfrm_state_insert(x);
err = 0;
out:
spin_unlock_bh(&xfrm_state_lock);
if (!err)
xfrm_flush_all_bundles();
if (x1) {
xfrm_state_delete(x1);
xfrm_state_put(x1);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册