datapath: Validate ToS when flow is added.

[sliver-openvswitch.git] / datapath / actions.c

diff --git a/datapath/actions.c b/datapath/actions.c
index b6d5488..4767862 100644 (file)
--- a/datapath/actions.c
+++ b/datapath/actions.c
@@ -292,7 +292,7 @@ static struct sk_buff *set_nw_tos(struct sk_buff *skb,
                u8 new;
 
                /* Set the DSCP bits and preserve the ECN bits. */
-               new = (a->nw_tos & ~INET_ECN_MASK) | (nh->tos & INET_ECN_MASK);
+               new = a->nw_tos | (nh->tos & INET_ECN_MASK);
                update_csum(&nh->check, skb, htons((uint16_t)old),
                                htons((uint16_t)new), 0);
                *f = new;