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xfrm: wrong hash value for temporary SA

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When kernel inserts a temporary SA for IKE, it uses the wrong hash
value for dst list. Two hash values were calcultated before: one with
source address and one with a wildcard source address.

Bug hinted by Junwei Zhang <junwei.zhang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2009-04-27 02:58:59 -07:00 committed by David S. Miller
parent 8f955d7f04
commit 6a783c9067
1 changed files with 3 additions and 3 deletions
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6
net/xfrm/xfrm_state.c
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@ -794,7 +794,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
{
static xfrm_address_t saddr_wildcard = { };
struct net *net = xp_net(pol);
unsigned int h;
unsigned int h, h_wildcard;
struct hlist_node *entry;
struct xfrm_state *x, *x0, *to_put;
int acquire_in_progress = 0;
@ -819,8 +819,8 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
if (best)
goto found;
h = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, family);
hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
h_wildcard = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, family);
hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h_wildcard, bydst) {
if (x->props.family == family &&
x->props.reqid == tmpl->reqid &&
!(x->props.flags & XFRM_STATE_WILDRECV) &&