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vrf: plug skb leaks 

Currently whenever a packet different from ETH_P_IP is sent through the
VRF device it is leaked so plug the leaks and properly drop these
packets.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2015-08-19 06:12:29 +03:00 committed by David S. Miller
parent 18041e3174
commit 57b8efa1a5
1 changed files with 10 additions and 3 deletions
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13
drivers/net/vrf.c
View File

@ -97,6 +97,12 @@ static bool is_ip_rx_frame(struct sk_buff *skb)
return false;
}
static void vrf_tx_error(struct net_device *vrf_dev, struct sk_buff *skb)
{
vrf_dev->stats.tx_errors++;
kfree_skb(skb);
}
/* note: already called with rcu_read_lock */
static rx_handler_result_t vrf_handle_frame(struct sk_buff **pskb)
{
@ -149,7 +155,8 @@ static struct rtnl_link_stats64 *vrf_get_stats64(struct net_device *dev,
static netdev_tx_t vrf_process_v6_outbound(struct sk_buff *skb,
struct net_device *dev)
{
return 0;
vrf_tx_error(dev, skb);
return NET_XMIT_DROP;
}
static int vrf_send_v4_prep(struct sk_buff *skb, struct flowi4 *fl4,
@ -206,8 +213,7 @@ static netdev_tx_t vrf_process_v4_outbound(struct sk_buff *skb,
out:
return ret;
err:
vrf_dev->stats.tx_errors++;
kfree_skb(skb);
vrf_tx_error(vrf_dev, skb);
goto out;
}
@ -219,6 +225,7 @@ static netdev_tx_t is_ip_tx_frame(struct sk_buff *skb, struct net_device *dev)
case htons(ETH_P_IPV6):
return vrf_process_v6_outbound(skb, dev);
default:
vrf_tx_error(dev, skb);
return NET_XMIT_DROP;
}
}