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!
diff --git a/net/llc/llc_output.c b/net/llc/llc_output.c
new file mode 100644
index 0000000..ab5784c
--- /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);