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path: root/drivers/net/wireless/ipw2x00/libipw_module.c
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Diffstat (limited to 'drivers/net/wireless/ipw2x00/libipw_module.c')
-rw-r--r--drivers/net/wireless/ipw2x00/libipw_module.c293
1 files changed, 293 insertions, 0 deletions
diff --git a/drivers/net/wireless/ipw2x00/libipw_module.c b/drivers/net/wireless/ipw2x00/libipw_module.c
new file mode 100644
index 00000000000..a2f5616d5b0
--- /dev/null
+++ b/drivers/net/wireless/ipw2x00/libipw_module.c
@@ -0,0 +1,293 @@
+/*******************************************************************************
+
+ Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
+
+ Portions of this file are based on the WEP enablement code provided by the
+ Host AP project hostap-drivers v0.1.3
+ Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ <j@w1.fi>
+ Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc., 59
+ Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ The full GNU General Public License is included in this distribution in the
+ file called LICENSE.
+
+ Contact Information:
+ James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include <linux/compiler.h>
+#include <linux/errno.h>
+#include <linux/if_arp.h>
+#include <linux/in6.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/tcp.h>
+#include <linux/types.h>
+#include <linux/wireless.h>
+#include <linux/etherdevice.h>
+#include <asm/uaccess.h>
+#include <net/net_namespace.h>
+#include <net/arp.h>
+
+#include <net/ieee80211.h>
+
+#define DRV_DESCRIPTION "802.11 data/management/control stack"
+#define DRV_NAME "ieee80211"
+#define DRV_VERSION IEEE80211_VERSION
+#define DRV_COPYRIGHT "Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>"
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+
+static int ieee80211_networks_allocate(struct ieee80211_device *ieee)
+{
+ if (ieee->networks)
+ return 0;
+
+ ieee->networks =
+ kzalloc(MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
+ GFP_KERNEL);
+ if (!ieee->networks) {
+ printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
+ ieee->dev->name);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void ieee80211_network_reset(struct ieee80211_network *network)
+{
+ if (!network)
+ return;
+
+ if (network->ibss_dfs) {
+ kfree(network->ibss_dfs);
+ network->ibss_dfs = NULL;
+ }
+}
+
+static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
+{
+ int i;
+
+ if (!ieee->networks)
+ return;
+
+ for (i = 0; i < MAX_NETWORK_COUNT; i++)
+ if (ieee->networks[i].ibss_dfs)
+ kfree(ieee->networks[i].ibss_dfs);
+
+ kfree(ieee->networks);
+ ieee->networks = NULL;
+}
+
+static void ieee80211_networks_initialize(struct ieee80211_device *ieee)
+{
+ int i;
+
+ INIT_LIST_HEAD(&ieee->network_free_list);
+ INIT_LIST_HEAD(&ieee->network_list);
+ for (i = 0; i < MAX_NETWORK_COUNT; i++)
+ list_add_tail(&ieee->networks[i].list,
+ &ieee->network_free_list);
+}
+
+static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
+{
+ if ((new_mtu < 68) || (new_mtu > IEEE80211_DATA_LEN))
+ return -EINVAL;
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+static struct net_device_stats *ieee80211_generic_get_stats(
+ struct net_device *dev)
+{
+ struct ieee80211_device *ieee = netdev_priv(dev);
+ return &ieee->stats;
+}
+
+struct net_device *alloc_ieee80211(int sizeof_priv)
+{
+ struct ieee80211_device *ieee;
+ struct net_device *dev;
+ int err;
+
+ IEEE80211_DEBUG_INFO("Initializing...\n");
+
+ dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
+ if (!dev) {
+ IEEE80211_ERROR("Unable to allocate network device.\n");
+ goto failed;
+ }
+ ieee = netdev_priv(dev);
+ dev->hard_start_xmit = ieee80211_xmit;
+ dev->change_mtu = ieee80211_change_mtu;
+
+ /* Drivers are free to override this if the generic implementation
+ * does not meet their needs. */
+ dev->get_stats = ieee80211_generic_get_stats;
+
+ ieee->dev = dev;
+
+ err = ieee80211_networks_allocate(ieee);
+ if (err) {
+ IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", err);
+ goto failed_free_netdev;
+ }
+ ieee80211_networks_initialize(ieee);
+
+ /* Default fragmentation threshold is maximum payload size */
+ ieee->fts = DEFAULT_FTS;
+ ieee->rts = DEFAULT_FTS;
+ ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
+ ieee->open_wep = 1;
+
+ /* Default to enabling full open WEP with host based encrypt/decrypt */
+ ieee->host_encrypt = 1;
+ ieee->host_decrypt = 1;
+ ieee->host_mc_decrypt = 1;
+
+ /* Host fragementation in Open mode. Default is enabled.
+ * Note: host fragmentation is always enabled if host encryption
+ * is enabled. For cards can do hardware encryption, they must do
+ * hardware fragmentation as well. So we don't need a variable
+ * like host_enc_frag. */
+ ieee->host_open_frag = 1;
+ ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
+
+ spin_lock_init(&ieee->lock);
+
+ lib80211_crypt_info_init(&ieee->crypt_info, dev->name, &ieee->lock);
+
+ ieee->wpa_enabled = 0;
+ ieee->drop_unencrypted = 0;
+ ieee->privacy_invoked = 0;
+
+ return dev;
+
+failed_free_netdev:
+ free_netdev(dev);
+failed:
+ return NULL;
+}
+
+void free_ieee80211(struct net_device *dev)
+{
+ struct ieee80211_device *ieee = netdev_priv(dev);
+
+ lib80211_crypt_info_free(&ieee->crypt_info);
+
+ ieee80211_networks_free(ieee);
+ free_netdev(dev);
+}
+
+#ifdef CONFIG_IEEE80211_DEBUG
+
+static int debug = 0;
+u32 ieee80211_debug_level = 0;
+EXPORT_SYMBOL_GPL(ieee80211_debug_level);
+static struct proc_dir_entry *ieee80211_proc = NULL;
+
+static int show_debug_level(char *page, char **start, off_t offset,
+ int count, int *eof, void *data)
+{
+ return snprintf(page, count, "0x%08X\n", ieee80211_debug_level);
+}
+
+static int store_debug_level(struct file *file, const char __user * buffer,
+ unsigned long count, void *data)
+{
+ char buf[] = "0x00000000\n";
+ unsigned long len = min((unsigned long)sizeof(buf) - 1, count);
+ unsigned long val;
+
+ if (copy_from_user(buf, buffer, len))
+ return count;
+ buf[len] = 0;
+ if (sscanf(buf, "%li", &val) != 1)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in hex or decimal form.\n", buf);
+ else
+ ieee80211_debug_level = val;
+
+ return strnlen(buf, len);
+}
+#endif /* CONFIG_IEEE80211_DEBUG */
+
+static int __init ieee80211_init(void)
+{
+#ifdef CONFIG_IEEE80211_DEBUG
+ struct proc_dir_entry *e;
+
+ ieee80211_debug_level = debug;
+ ieee80211_proc = proc_mkdir(DRV_NAME, init_net.proc_net);
+ if (ieee80211_proc == NULL) {
+ IEEE80211_ERROR("Unable to create " DRV_NAME
+ " proc directory\n");
+ return -EIO;
+ }
+ e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR,
+ ieee80211_proc);
+ if (!e) {
+ remove_proc_entry(DRV_NAME, init_net.proc_net);
+ ieee80211_proc = NULL;
+ return -EIO;
+ }
+ e->read_proc = show_debug_level;
+ e->write_proc = store_debug_level;
+ e->data = NULL;
+#endif /* CONFIG_IEEE80211_DEBUG */
+
+ printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+
+ return 0;
+}
+
+static void __exit ieee80211_exit(void)
+{
+#ifdef CONFIG_IEEE80211_DEBUG
+ if (ieee80211_proc) {
+ remove_proc_entry("debug_level", ieee80211_proc);
+ remove_proc_entry(DRV_NAME, init_net.proc_net);
+ ieee80211_proc = NULL;
+ }
+#endif /* CONFIG_IEEE80211_DEBUG */
+}
+
+#ifdef CONFIG_IEEE80211_DEBUG
+#include <linux/moduleparam.h>
+module_param(debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+#endif /* CONFIG_IEEE80211_DEBUG */
+
+module_exit(ieee80211_exit);
+module_init(ieee80211_init);
+
+EXPORT_SYMBOL(alloc_ieee80211);
+EXPORT_SYMBOL(free_ieee80211);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-14 19:56:08 +0000