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authorJoy Latten <latten@austin.ibm.com>2007-03-13 03:14:07 +0300
committerDavid S. Miller <davem@davemloft.net>2007-03-13 03:14:07 +0300
commit75e252d981c0e80c14ce90df246e9b1300474c4f (patch)
tree668f2df92fb85e17574a1fbdf34062539eff69d7
parentce0ecd594d78710422599918a608e96dd1ee6024 (diff)
downloadlinux-75e252d981c0e80c14ce90df246e9b1300474c4f.tar.xz
[XFRM]: Fix missing protocol comparison of larval SAs.
I noticed that in xfrm_state_add we look for the larval SA in a few places without checking for protocol match. So when using both AH and ESP, whichever one gets added first, deletes the larval SA. It seems AH always gets added first and ESP is always the larval SA's protocol since the xfrm->tmpl has it first. Thus causing the additional km_query() Adding the check eliminates accidental double SA creation. Signed-off-by: Joy Latten <latten@austin.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/xfrm/xfrm_state.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index a35f9e4ede26..5c5f6dcab974 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -704,7 +704,8 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
x->props.mode != mode ||
x->props.family != family ||
x->km.state != XFRM_STATE_ACQ ||
- x->id.spi != 0)
+ x->id.spi != 0 ||
+ x->id.proto != proto)
continue;
switch (family) {
@@ -801,7 +802,8 @@ int xfrm_state_add(struct xfrm_state *x)
if (use_spi && x->km.seq) {
x1 = __xfrm_find_acq_byseq(x->km.seq);
- if (x1 && xfrm_addr_cmp(&x1->id.daddr, &x->id.daddr, family)) {
+ if (x1 && ((x1->id.proto != x->id.proto) ||
+ xfrm_addr_cmp(&x1->id.daddr, &x->id.daddr, family))) {
xfrm_state_put(x1);
x1 = NULL;
}