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[XFRM]: Fix existence lookup in xfrm_state_find 

Use 'daddr' instead of &tmpl->id.daddr, since the latter
might be zero.  Also, only perform the lookup when
tmpl->id.spi is non-zero.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2005-04-21 20:12:32 -07:00 committed by David S. Miller
parent 7938109fff
commit 5c5d281a93
1 changed files with 3 additions and 2 deletions
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5
net/xfrm/xfrm_state.c
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@ -357,8 +357,9 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
x = best; x = best;
if (!x && !error && !acquire_in_progress) { if (!x && !error && !acquire_in_progress) {
x0 = afinfo->state_lookup(&tmpl->id.daddr, tmpl->id.spi, tmpl->id.proto); if (tmpl->id.spi &&
if (x0 != NULL) { (x0 = afinfo->state_lookup(daddr, tmpl->id.spi,
tmpl->id.proto)) != NULL) {
xfrm_state_put(x0); xfrm_state_put(x0);
error = -EEXIST; error = -EEXIST;
goto out; goto out;