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/netrom/nr_dev.c b/net/netrom/nr_dev.c
new file mode 100644
index 0000000..220bf74
--- /dev/null
+++ b/net/netrom/nr_dev.c
@@ -0,0 +1,220 @@
+/*
+ * 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.
+ *
+ * Copyright Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
+ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/sysctl.h>
+#include <linux/string.h>
+#include <linux/socket.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/in.h>
+#include <linux/if_ether.h> /* For the statistics structure. */
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <linux/inet.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/skbuff.h>
+
+#include <net/ip.h>
+#include <net/arp.h>
+
+#include <net/ax25.h>
+#include <net/netrom.h>
+
+#ifdef CONFIG_INET
+
+/*
+ * Only allow IP over NET/ROM frames through if the netrom device is up.
+ */
+
+int nr_rx_ip(struct sk_buff *skb, struct net_device *dev)
+{
+ struct net_device_stats *stats = netdev_priv(dev);
+
+ if (!netif_running(dev)) {
+ stats->rx_errors++;
+ return 0;
+ }
+
+ stats->rx_packets++;
+ stats->rx_bytes += skb->len;
+
+ skb->protocol = htons(ETH_P_IP);
+
+ /* Spoof incoming device */
+ skb->dev = dev;
+ skb->h.raw = skb->data;
+ skb->nh.raw = skb->data;
+ skb->pkt_type = PACKET_HOST;
+
+ ip_rcv(skb, skb->dev, NULL);
+
+ return 1;
+}
+
+
+static int nr_rebuild_header(struct sk_buff *skb)
+{
+ struct net_device *dev = skb->dev;
+ struct net_device_stats *stats = netdev_priv(dev);
+ struct sk_buff *skbn;
+ unsigned char *bp = skb->data;
+ int len;
+
+ if (arp_find(bp + 7, skb)) {
+ return 1;
+ }
+
+ bp[6] &= ~AX25_CBIT;
+ bp[6] &= ~AX25_EBIT;
+ bp[6] |= AX25_SSSID_SPARE;
+ bp += AX25_ADDR_LEN;
+
+ bp[6] &= ~AX25_CBIT;
+ bp[6] |= AX25_EBIT;
+ bp[6] |= AX25_SSSID_SPARE;
+
+ if ((skbn = skb_clone(skb, GFP_ATOMIC)) == NULL) {
+ kfree_skb(skb);
+ return 1;
+ }
+
+ if (skb->sk != NULL)
+ skb_set_owner_w(skbn, skb->sk);
+
+ kfree_skb(skb);
+
+ len = skbn->len;
+
+ if (!nr_route_frame(skbn, NULL)) {
+ kfree_skb(skbn);
+ stats->tx_errors++;
+ }
+
+ stats->tx_packets++;
+ stats->tx_bytes += len;
+
+ return 1;
+}
+
+#else
+
+static int nr_rebuild_header(struct sk_buff *skb)
+{
+ return 1;
+}
+
+#endif
+
+static int nr_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
+ void *daddr, void *saddr, unsigned len)
+{
+ unsigned char *buff = skb_push(skb, NR_NETWORK_LEN + NR_TRANSPORT_LEN);
+
+ memcpy(buff, (saddr != NULL) ? saddr : dev->dev_addr, dev->addr_len);
+ buff[6] &= ~AX25_CBIT;
+ buff[6] &= ~AX25_EBIT;
+ buff[6] |= AX25_SSSID_SPARE;
+ buff += AX25_ADDR_LEN;
+
+ if (daddr != NULL)
+ memcpy(buff, daddr, dev->addr_len);
+ buff[6] &= ~AX25_CBIT;
+ buff[6] |= AX25_EBIT;
+ buff[6] |= AX25_SSSID_SPARE;
+ buff += AX25_ADDR_LEN;
+
+ *buff++ = sysctl_netrom_network_ttl_initialiser;
+
+ *buff++ = NR_PROTO_IP;
+ *buff++ = NR_PROTO_IP;
+ *buff++ = 0;
+ *buff++ = 0;
+ *buff++ = NR_PROTOEXT;
+
+ if (daddr != NULL)
+ return 37;
+
+ return -37;
+}
+
+static int nr_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct sockaddr *sa = addr;
+
+ if (dev->flags & IFF_UP)
+ ax25_listen_release((ax25_address *)dev->dev_addr, NULL);
+
+ memcpy(dev->dev_addr, sa->sa_data, dev->addr_len);
+
+ if (dev->flags & IFF_UP)
+ ax25_listen_register((ax25_address *)dev->dev_addr, NULL);
+
+ return 0;
+}
+
+static int nr_open(struct net_device *dev)
+{
+ netif_start_queue(dev);
+ ax25_listen_register((ax25_address *)dev->dev_addr, NULL);
+ return 0;
+}
+
+static int nr_close(struct net_device *dev)
+{
+ ax25_listen_release((ax25_address *)dev->dev_addr, NULL);
+ netif_stop_queue(dev);
+ return 0;
+}
+
+static int nr_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct net_device_stats *stats = netdev_priv(dev);
+ dev_kfree_skb(skb);
+ stats->tx_errors++;
+ return 0;
+}
+
+static struct net_device_stats *nr_get_stats(struct net_device *dev)
+{
+ return netdev_priv(dev);
+}
+
+void nr_setup(struct net_device *dev)
+{
+ SET_MODULE_OWNER(dev);
+ dev->mtu = NR_MAX_PACKET_SIZE;
+ dev->hard_start_xmit = nr_xmit;
+ dev->open = nr_open;
+ dev->stop = nr_close;
+
+ dev->hard_header = nr_header;
+ dev->hard_header_len = NR_NETWORK_LEN + NR_TRANSPORT_LEN;
+ dev->addr_len = AX25_ADDR_LEN;
+ dev->type = ARPHRD_NETROM;
+ dev->tx_queue_len = 40;
+ dev->rebuild_header = nr_rebuild_header;
+ dev->set_mac_address = nr_set_mac_address;
+
+ /* New-style flags. */
+ dev->flags = 0;
+
+ dev->get_stats = nr_get_stats;
+}