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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/802/p8023.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'net/802/p8023.c')
-rw-r--r--net/802/p8023.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/net/802/p8023.c b/net/802/p8023.c
new file mode 100644
index 000000000000..a0b61b40225f
--- /dev/null
+++ b/net/802/p8023.c
@@ -0,0 +1,61 @@
+/*
+ * 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/in.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+
+#include <net/datalink.h>
+
+/*
+ * 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 int p8023_request(struct datalink_proto *dl,
+ struct sk_buff *skb, unsigned char *dest_node)
+{
+ struct net_device *dev = skb->dev;
+
+ dev->hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len);
+ return dev_queue_xmit(skb);
+}
+
+/*
+ * 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 = kmalloc(sizeof(*proto), GFP_ATOMIC);
+
+ if (proto) {
+ proto->header_length = 0;
+ proto->request = p8023_request;
+ }
+ return proto;
+}
+
+/*
+ * Destroy the 802.3 client.
+ */
+void destroy_8023_client(struct datalink_proto *dl)
+{
+ if (dl)
+ kfree(dl);
+}
+
+EXPORT_SYMBOL(destroy_8023_client);
+EXPORT_SYMBOL(make_8023_client);

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