DEV_FORWARD_SKB(9) Network device support DEV_FORWARD_SKB(9)
NAME dev_forward_skb - loopback an skb to another netif
SYNOPSIS int dev_forward_skb(struct net_device * dev, struct sk_buff * skb);
ARGUMENTS dev destination network device
skb buffer to forward
RETURN VALUES NET_RX_SUCCESS (no congestion) NET_RX_DROP (packet was dropped, but freed)
dev_forward_skb can be used for injecting an skb from the start_xmit function of one device into the receive queue of another device.
The receiving device may be in another namespace, so we have to clear all information in the skb that could impact namespace isolation.
COPYRIGHT Kernel Hackers Manual 2.6. April 2016 DEV_FORWARD_SKB(9)