projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| 22 | #include <net/datalink.h> | |
| 23 | ||
| 24 | /* | |
| 25 | * Place an 802.3 header on a packet. The driver will do the mac | |
| 26 | * addresses, we just need to give it the buffer length. | |
| 27 | */ | |
| 28 | static int p8023_request(struct datalink_proto *dl, | |
| 29 | struct sk_buff *skb, unsigned char *dest_node) | |
| 30 | { | |
| 31 | struct net_device *dev = skb->dev; | |
| 32 | ||
| 33 | dev->hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len); | |
| 34 | return dev_queue_xmit(skb); | |
| 35 | } | |
| 36 | ||
| 37 | /* | |
| 38 | * Create an 802.3 client. Note there can be only one 802.3 client | |
| 39 | */ | |
| 40 | struct datalink_proto *make_8023_client(void) | |
| 41 | { | |
| 42 | struct datalink_proto *proto = kmalloc(sizeof(*proto), GFP_ATOMIC); | |
| 43 | ||
| 44 | if (proto) { | |
| 45 | proto->header_length = 0; | |
| 46 | proto->request = p8023_request; | |
| 47 | } | |
| 48 | return proto; | |
| 49 | } | |
| 50 | ||
| 51 | /* | |
| 52 | * Destroy the 802.3 client. | |
| 53 | */ | |
| 54 | void destroy_8023_client(struct datalink_proto *dl) | |
| 55 | { | |
| 56 | if (dl) | |
| 57 | kfree(dl); | |
| 58 | } | |
| 59 | ||
| 60 | EXPORT_SYMBOL(destroy_8023_client); | |
| 61 | EXPORT_SYMBOL(make_8023_client); |