From: Masahide NAKAMURA <[EMAIL PROTECTED]>
Date: Fri, 25 Aug 2006 19:06:40 +0900
> I've found a problem about MIPv6 CN with the patch below.
We just need to search by priority in the inexact list, even
if we get a hit in the hash table.
The fix is trivial, please try this patch:
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 200e6e5..060f115 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -908,6 +908,7 @@ static struct xfrm_policy *xfrm_policy_l
xfrm_address_t *daddr, *saddr;
struct hlist_node *entry;
struct hlist_head *chain;
+ u32 priority = ~0U;
daddr = xfrm_flowi_daddr(fl, family);
saddr = xfrm_flowi_saddr(fl, family);
@@ -919,21 +920,21 @@ static struct xfrm_policy *xfrm_policy_l
ret = NULL;
hlist_for_each_entry(pol, entry, chain, bydst) {
if (xfrm_policy_match(pol, fl, type, family, dir)) {
- xfrm_pol_hold(pol);
ret = pol;
+ priority = ret->priority;
break;
}
}
- if (!ret) {
- chain = &xfrm_policy_inexact[dir];
- hlist_for_each_entry(pol, entry, chain, bydst) {
- if (xfrm_policy_match(pol, fl, type, family, dir)) {
- xfrm_pol_hold(pol);
- ret = pol;
- break;
- }
+ chain = &xfrm_policy_inexact[dir];
+ hlist_for_each_entry(pol, entry, chain, bydst) {
+ if (xfrm_policy_match(pol, fl, type, family, dir) &&
+ pol->priority < priority) {
+ ret = pol;
+ break;
}
}
+ if (ret)
+ xfrm_pol_hold(ret);
read_unlock_bh(&xfrm_policy_lock);
return ret;
-
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