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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * NET3: 802.3 data link hooks used for IPX 802.3 | |
4 | * | |
1da177e4 LT |
5 | * 802.3 isn't really a protocol data link layer. Some old IPX stuff |
6 | * uses it however. Note that there is only one 802.3 protocol layer | |
7 | * in the system. We don't currently support different protocols | |
8 | * running raw 802.3 on different devices. Thankfully nobody else | |
9 | * has done anything like the old IPX. | |
10 | */ | |
11 | ||
12 | #include <linux/in.h> | |
13 | #include <linux/mm.h> | |
14 | #include <linux/module.h> | |
15 | #include <linux/netdevice.h> | |
16 | #include <linux/skbuff.h> | |
5a0e3ad6 | 17 | #include <linux/slab.h> |
1da177e4 LT |
18 | |
19 | #include <net/datalink.h> | |
20380731 | 20 | #include <net/p8022.h> |
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21 | |
22 | /* | |
23 | * Place an 802.3 header on a packet. The driver will do the mac | |
24 | * addresses, we just need to give it the buffer length. | |
25 | */ | |
26 | static int p8023_request(struct datalink_proto *dl, | |
27 | struct sk_buff *skb, unsigned char *dest_node) | |
28 | { | |
29 | struct net_device *dev = skb->dev; | |
30 | ||
0c4e8581 | 31 | dev_hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len); |
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32 | return dev_queue_xmit(skb); |
33 | } | |
34 | ||
35 | /* | |
36 | * Create an 802.3 client. Note there can be only one 802.3 client | |
37 | */ | |
38 | struct datalink_proto *make_8023_client(void) | |
39 | { | |
40 | struct datalink_proto *proto = kmalloc(sizeof(*proto), GFP_ATOMIC); | |
41 | ||
42 | if (proto) { | |
43 | proto->header_length = 0; | |
44 | proto->request = p8023_request; | |
45 | } | |
46 | return proto; | |
47 | } | |
48 | ||
49 | /* | |
50 | * Destroy the 802.3 client. | |
51 | */ | |
52 | void destroy_8023_client(struct datalink_proto *dl) | |
53 | { | |
a51482bd | 54 | kfree(dl); |
1da177e4 LT |
55 | } |
56 | ||
57 | EXPORT_SYMBOL(destroy_8023_client); | |
58 | EXPORT_SYMBOL(make_8023_client); | |
99e382af DJ |
59 | |
60 | MODULE_LICENSE("GPL"); |