centos man page for dev_forward_skb

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 3.10					     June 2014							DEV_FORWARD_SKB(9)