Dropping skb's

[Memon, Mazhar I]

dealloc an skb; causing the packet to never be sent (or received):

	skb_unlink(skb);
	dev_kfree_skb(skb);

Instead, when trying to drop outbound skb's, they get sent anyway.  I've
already checked that skb->users drops to zero and should be deallocated when
dev_kfree_skb is called. I've also tried directly calling the
skb->destructor function and manually (and atomically) decrementing
skb->users.

Refer to the packet_handler below:

Regards,
Mazhar

static struct packet_type all_type;
static int pkt_handler(struct sk_buff *skb, struct net_device *dv, struct
packet_type *pt) { 
        switch(skb->pkt_type) {
		case PACKET_OUTGOING:
			printk("outgoing\n");	
			
			skb_unlink(skb);
			dev_kfree_skb(skb);
		
			goto destroy;
			break;
            default:
			printk("incoming\n");	
			break;
        }

pass:
        dev_kfree_skb(skb);
destroy:
        return 0;
}
... 
int init_module(void)
{
        all_type.type = htons(ETH_P_ALL);
        all_type.func = pkt_handler;

        dev_add_pack(&all_type);
        return 0;
}