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60 lines
1.4 KiB
60 lines
1.4 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* NET3: 802.3 data link hooks used for IPX 802.3 |
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* |
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* 802.3 isn't really a protocol data link layer. Some old IPX stuff |
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* uses it however. Note that there is only one 802.3 protocol layer |
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* in the system. We don't currently support different protocols |
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* running raw 802.3 on different devices. Thankfully nobody else |
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* has done anything like the old IPX. |
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*/ |
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#include <linux/in.h> |
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#include <linux/mm.h> |
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#include <linux/module.h> |
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#include <linux/netdevice.h> |
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#include <linux/skbuff.h> |
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#include <linux/slab.h> |
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#include <net/datalink.h> |
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#include <net/p8022.h> |
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/* |
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* Place an 802.3 header on a packet. The driver will do the mac |
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* addresses, we just need to give it the buffer length. |
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*/ |
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static int p8023_request(struct datalink_proto *dl, |
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struct sk_buff *skb, unsigned char *dest_node) |
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{ |
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struct net_device *dev = skb->dev; |
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dev_hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len); |
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return dev_queue_xmit(skb); |
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} |
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/* |
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* Create an 802.3 client. Note there can be only one 802.3 client |
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*/ |
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struct datalink_proto *make_8023_client(void) |
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{ |
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struct datalink_proto *proto = kmalloc(sizeof(*proto), GFP_ATOMIC); |
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if (proto) { |
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proto->header_length = 0; |
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proto->request = p8023_request; |
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} |
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return proto; |
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} |
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/* |
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* Destroy the 802.3 client. |
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*/ |
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void destroy_8023_client(struct datalink_proto *dl) |
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{ |
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kfree(dl); |
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} |
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EXPORT_SYMBOL(destroy_8023_client); |
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EXPORT_SYMBOL(make_8023_client); |
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MODULE_LICENSE("GPL");
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