patch-2.1.20 linux/net/802/p8023.c
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- Lines: 67
- Date:
Thu Jan 2 15:13:27 1997
- Orig file:
v2.1.19/linux/net/802/p8023.c
- Orig date:
Mon Mar 25 08:58:23 1996
diff -u --recursive --new-file v2.1.19/linux/net/802/p8023.c linux/net/802/p8023.c
@@ -1,34 +1,59 @@
+/*
+ * NET3: 802.3 data link hooks used for IPX 802.3
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * 802.3 isn't really a protocol data link layer. Some old IPX stuff
+ * uses it however. Note that there is only one 802.3 protocol layer
+ * in the system. We don't currently support different protocols
+ * running raw 802.3 on different devices. Thankfully nobody else
+ * has done anything like the old IPX.
+ */
+
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/datalink.h>
#include <linux/mm.h>
#include <linux/in.h>
-static void
-p8023_datalink_header(struct datalink_proto *dl,
+/*
+ * Place an 802.3 header on a packet. The driver will do the mac
+ * addresses, we just need to give it the buffer length.
+ */
+
+static void p8023_datalink_header(struct datalink_proto *dl,
struct sk_buff *skb, unsigned char *dest_node)
{
struct device *dev = skb->dev;
-
dev->hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len);
}
-struct datalink_proto *
-make_8023_client(void)
+/*
+ * Create an 802.3 client. Note there can be only one 802.3 client
+ */
+
+struct datalink_proto *make_8023_client(void)
{
struct datalink_proto *proto;
proto = (struct datalink_proto *) kmalloc(sizeof(*proto), GFP_ATOMIC);
- if (proto != NULL) {
+ if (proto != NULL)
+ {
proto->type_len = 0;
proto->header_length = 0;
proto->datalink_header = p8023_datalink_header;
proto->string_name = "802.3";
}
-
return proto;
}
+/*
+ * Destroy the 802.3 client.
+ */
+
void destroy_8023_client(struct datalink_proto *dl)
{
if (dl)
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