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!

1 files changed, 107 insertions, 0 deletions

diff --git a/net/llc/llc_output.c b/net/llc/llc_output.c
new file mode 100644
index 000000000000..ab5784cf163e
--- /dev/null
+++ b/net/llc/llc_output.c
@@ -0,0 +1,107 @@
+/*
+ * llc_output.c - LLC minimal output path
+ *
+ * Copyright (c) 1997 by Procom Technology, Inc.
+ * 		 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ * This program can be redistributed or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation.
+ * This program is distributed without any warranty or implied warranty
+ * of merchantability or fitness for a particular purpose.
+ *
+ * See the GNU General Public License version 2 for more details.
+ */
+
+#include <linux/if_arp.h>
+#include <linux/if_tr.h>
+#include <linux/netdevice.h>
+#include <linux/trdevice.h>
+#include <linux/skbuff.h>
+#include <net/llc.h>
+#include <net/llc_pdu.h>
+
+/**
+ *	llc_mac_hdr_init - fills MAC header fields
+ *	@skb: Address of the frame to initialize its MAC header
+ *	@sa: The MAC source address
+ *	@da: The MAC destination address
+ *
+ *	Fills MAC header fields, depending on MAC type. Returns 0, If MAC type
+ *	is a valid type and initialization completes correctly 1, otherwise.
+ */
+int llc_mac_hdr_init(struct sk_buff *skb, unsigned char *sa, unsigned char *da)
+{
+	int rc = 0;
+
+	switch (skb->dev->type) {
+#ifdef CONFIG_TR
+	case ARPHRD_IEEE802_TR: {
+		struct net_device *dev = skb->dev;
+		struct trh_hdr *trh;
+		
+		skb->mac.raw = skb_push(skb, sizeof(*trh));
+		trh = tr_hdr(skb);
+		trh->ac = AC;
+		trh->fc = LLC_FRAME;
+		if (sa)
+			memcpy(trh->saddr, sa, dev->addr_len);
+		else
+			memset(trh->saddr, 0, dev->addr_len);
+		if (da) {
+			memcpy(trh->daddr, da, dev->addr_len);
+			tr_source_route(skb, trh, dev);
+			skb->mac.raw = skb->data;
+		}
+		break;
+	}
+#endif
+	case ARPHRD_ETHER:
+	case ARPHRD_LOOPBACK: {
+		unsigned short len = skb->len;
+		struct ethhdr *eth;
+
+		skb->mac.raw = skb_push(skb, sizeof(*eth));
+		eth = eth_hdr(skb);
+		eth->h_proto = htons(len);
+		memcpy(eth->h_dest, da, ETH_ALEN);
+		memcpy(eth->h_source, sa, ETH_ALEN);
+		break;
+	}
+	default:
+		printk(KERN_WARNING "device type not supported: %d\n",
+		       skb->dev->type);
+		rc = -EINVAL;
+	}
+	return rc;
+}
+
+/**
+ *	llc_build_and_send_ui_pkt - unitdata request interface for upper layers
+ *	@sap: sap to use
+ *	@skb: packet to send
+ *	@dmac: destination mac address
+ *	@dsap: destination sap
+ *
+ *	Upper layers calls this function when upper layer wants to send data
+ *	using connection-less mode communication (UI pdu).
+ *
+ *	Accept data frame from network layer to be sent using connection-
+ *	less mode communication; timeout/retries handled by network layer;
+ *	package primitive as an event and send to SAP event handler
+ */
+int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
+			      unsigned char *dmac, unsigned char dsap)
+{
+	int rc;
+	llc_pdu_header_init(skb, LLC_PDU_TYPE_U, sap->laddr.lsap,
+			    dsap, LLC_PDU_CMD);
+	llc_pdu_init_as_ui_cmd(skb);
+	rc = llc_mac_hdr_init(skb, skb->dev->dev_addr, dmac);
+	if (!rc)
+		rc = dev_queue_xmit(skb);
+	return rc;
+}
+
+EXPORT_SYMBOL(llc_mac_hdr_init);
+EXPORT_SYMBOL(llc_build_and_send_ui_pkt);