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/ax25/ax25_dev.c b/net/ax25/ax25_dev.c
new file mode 100644
index 0000000..dab77ef
--- /dev/null
+++ b/net/ax25/ax25_dev.c
@@ -0,0 +1,208 @@
+/*
+ * 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 (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
+ */
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/string.h>
+#include <linux/sockios.h>
+#include <linux/net.h>
+#include <linux/spinlock.h>
+#include <net/ax25.h>
+#include <linux/inet.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <linux/fcntl.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+
+ax25_dev *ax25_dev_list;
+DEFINE_SPINLOCK(ax25_dev_lock);
+
+ax25_dev *ax25_addr_ax25dev(ax25_address *addr)
+{
+ ax25_dev *ax25_dev, *res = NULL;
+
+ spin_lock_bh(&ax25_dev_lock);
+ for (ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next)
+ if (ax25cmp(addr, (ax25_address *)ax25_dev->dev->dev_addr) == 0) {
+ res = ax25_dev;
+ }
+ spin_unlock_bh(&ax25_dev_lock);
+
+ return res;
+}
+
+/*
+ * This is called when an interface is brought up. These are
+ * reasonable defaults.
+ */
+void ax25_dev_device_up(struct net_device *dev)
+{
+ ax25_dev *ax25_dev;
+
+ if ((ax25_dev = kmalloc(sizeof(*ax25_dev), GFP_ATOMIC)) == NULL) {
+ printk(KERN_ERR "AX.25: ax25_dev_device_up - out of memory\n");
+ return;
+ }
+
+ ax25_unregister_sysctl();
+
+ memset(ax25_dev, 0x00, sizeof(*ax25_dev));
+
+ dev->ax25_ptr = ax25_dev;
+ ax25_dev->dev = dev;
+ dev_hold(dev);
+ ax25_dev->forward = NULL;
+
+ ax25_dev->values[AX25_VALUES_IPDEFMODE] = AX25_DEF_IPDEFMODE;
+ ax25_dev->values[AX25_VALUES_AXDEFMODE] = AX25_DEF_AXDEFMODE;
+ ax25_dev->values[AX25_VALUES_BACKOFF] = AX25_DEF_BACKOFF;
+ ax25_dev->values[AX25_VALUES_CONMODE] = AX25_DEF_CONMODE;
+ ax25_dev->values[AX25_VALUES_WINDOW] = AX25_DEF_WINDOW;
+ ax25_dev->values[AX25_VALUES_EWINDOW] = AX25_DEF_EWINDOW;
+ ax25_dev->values[AX25_VALUES_T1] = AX25_DEF_T1;
+ ax25_dev->values[AX25_VALUES_T2] = AX25_DEF_T2;
+ ax25_dev->values[AX25_VALUES_T3] = AX25_DEF_T3;
+ ax25_dev->values[AX25_VALUES_IDLE] = AX25_DEF_IDLE;
+ ax25_dev->values[AX25_VALUES_N2] = AX25_DEF_N2;
+ ax25_dev->values[AX25_VALUES_PACLEN] = AX25_DEF_PACLEN;
+ ax25_dev->values[AX25_VALUES_PROTOCOL] = AX25_DEF_PROTOCOL;
+ ax25_dev->values[AX25_VALUES_DS_TIMEOUT]= AX25_DEF_DS_TIMEOUT;
+
+#if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER)
+ init_timer(&ax25_dev->dama.slave_timer);
+#endif
+
+ spin_lock_bh(&ax25_dev_lock);
+ ax25_dev->next = ax25_dev_list;
+ ax25_dev_list = ax25_dev;
+ spin_unlock_bh(&ax25_dev_lock);
+
+ ax25_register_sysctl();
+}
+
+void ax25_dev_device_down(struct net_device *dev)
+{
+ ax25_dev *s, *ax25_dev;
+
+ if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL)
+ return;
+
+ ax25_unregister_sysctl();
+
+ spin_lock_bh(&ax25_dev_lock);
+
+#ifdef CONFIG_AX25_DAMA_SLAVE
+ ax25_ds_del_timer(ax25_dev);
+#endif
+
+ /*
+ * Remove any packet forwarding that points to this device.
+ */
+ for (s = ax25_dev_list; s != NULL; s = s->next)
+ if (s->forward == dev)
+ s->forward = NULL;
+
+ if ((s = ax25_dev_list) == ax25_dev) {
+ ax25_dev_list = s->next;
+ spin_unlock_bh(&ax25_dev_lock);
+ dev_put(dev);
+ kfree(ax25_dev);
+ ax25_register_sysctl();
+ return;
+ }
+
+ while (s != NULL && s->next != NULL) {
+ if (s->next == ax25_dev) {
+ s->next = ax25_dev->next;
+ spin_unlock_bh(&ax25_dev_lock);
+ dev_put(dev);
+ kfree(ax25_dev);
+ ax25_register_sysctl();
+ return;
+ }
+
+ s = s->next;
+ }
+ spin_unlock_bh(&ax25_dev_lock);
+ dev->ax25_ptr = NULL;
+
+ ax25_register_sysctl();
+}
+
+int ax25_fwd_ioctl(unsigned int cmd, struct ax25_fwd_struct *fwd)
+{
+ ax25_dev *ax25_dev, *fwd_dev;
+
+ if ((ax25_dev = ax25_addr_ax25dev(&fwd->port_from)) == NULL)
+ return -EINVAL;
+
+ switch (cmd) {
+ case SIOCAX25ADDFWD:
+ if ((fwd_dev = ax25_addr_ax25dev(&fwd->port_to)) == NULL)
+ return -EINVAL;
+ if (ax25_dev->forward != NULL)
+ return -EINVAL;
+ ax25_dev->forward = fwd_dev->dev;
+ break;
+
+ case SIOCAX25DELFWD:
+ if (ax25_dev->forward == NULL)
+ return -EINVAL;
+ ax25_dev->forward = NULL;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+struct net_device *ax25_fwd_dev(struct net_device *dev)
+{
+ ax25_dev *ax25_dev;
+
+ if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL)
+ return dev;
+
+ if (ax25_dev->forward == NULL)
+ return dev;
+
+ return ax25_dev->forward;
+}
+
+/*
+ * Free all memory associated with device structures.
+ */
+void __exit ax25_dev_free(void)
+{
+ ax25_dev *s, *ax25_dev;
+
+ spin_lock_bh(&ax25_dev_lock);
+ ax25_dev = ax25_dev_list;
+ while (ax25_dev != NULL) {
+ s = ax25_dev;
+ dev_put(ax25_dev->dev);
+ ax25_dev = ax25_dev->next;
+ kfree(s);
+ }
+ ax25_dev_list = NULL;
+ spin_unlock_bh(&ax25_dev_lock);
+}