1/*
2 *	NET3:	802.3 data link hooks used for IPX 802.3
3 *
4 *	This program is free software; you can redistribute it and/or
5 *	modify it under the terms of the GNU General Public License
6 *	as published by the Free Software Foundation; either version
7 *	2 of the License, or (at your option) any later version.
8 *
9 *	802.3 isn't really a protocol data link layer. Some old IPX stuff
10 *	uses it however. Note that there is only one 802.3 protocol layer
11 *	in the system. We don't currently support different protocols
12 *	running raw 802.3 on different devices. Thankfully nobody else
13 *	has done anything like the old IPX.
14 */
15
16#include <linux/in.h>
17#include <linux/mm.h>
18#include <linux/module.h>
19#include <linux/netdevice.h>
20#include <linux/skbuff.h>
21#include <linux/slab.h>
22
23#include <net/datalink.h>
24#include <net/p8022.h>
25
26/*
27 *	Place an 802.3 header on a packet. The driver will do the mac
28 *	addresses, we just need to give it the buffer length.
29 */
30static int p8023_request(struct datalink_proto *dl,
31			 struct sk_buff *skb, unsigned char *dest_node)
32{
33	struct net_device *dev = skb->dev;
34
35	dev_hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len);
36	return dev_queue_xmit(skb);
37}
38
39/*
40 *	Create an 802.3 client. Note there can be only one 802.3 client
41 */
42struct datalink_proto *make_8023_client(void)
43{
44	struct datalink_proto *proto = kmalloc(sizeof(*proto), GFP_ATOMIC);
45
46	if (proto) {
47		proto->header_length = 0;
48		proto->request	     = p8023_request;
49	}
50	return proto;
51}
52
53/*
54 *	Destroy the 802.3 client.
55 */
56void destroy_8023_client(struct datalink_proto *dl)
57{
58	kfree(dl);
59}
60
61EXPORT_SYMBOL(destroy_8023_client);
62EXPORT_SYMBOL(make_8023_client);
63
64MODULE_LICENSE("GPL");
65