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net: Validate xmit SKBs right when we pull them out of the qdisc. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-08-30 19:13:51 -07:00
parent eae3f88ee4
commit 50cbe9ab5f
3 changed files with 6 additions and 6 deletions
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1
include/linux/netdevice.h
View File

@ -2827,6 +2827,7 @@ int dev_set_mac_address(struct net_device *, struct sockaddr *);
int dev_change_carrier(struct net_device *, bool new_carrier);
int dev_get_phys_port_id(struct net_device *dev,
struct netdev_phys_port_id *ppid);
struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev);
int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
struct netdev_queue *txq);
int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);

6
net/core/dev.c
View File

@ -2656,7 +2656,7 @@ struct sk_buff *validate_xmit_vlan(struct sk_buff *skb, netdev_features_t featur
return skb;
}
static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev)
struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev)
{
netdev_features_t features;
@ -2719,10 +2719,6 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
{
int rc = NETDEV_TX_OK;
skb = validate_xmit_skb(skb, dev);
if (!skb)
return rc;
if (likely(!skb->next))
return xmit_one(skb, dev, txq, false);

5
net/sched/sch_generic.c
View File

@ -70,8 +70,11 @@ static inline struct sk_buff *dequeue_skb(struct Qdisc *q)
} else
skb = NULL;
} else {
if (!(q->flags & TCQ_F_ONETXQUEUE) || !netif_xmit_frozen_or_stopped(txq))
if (!(q->flags & TCQ_F_ONETXQUEUE) || !netif_xmit_frozen_or_stopped(txq)) {
skb = q->dequeue(q);
if (skb)
skb = validate_xmit_skb(skb, qdisc_dev(q));
}
}
return skb;