1 files changed, 298 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_module.c b/drivers/net/wireless/intel/ipw2x00/libipw_module.c
new file mode 100644
index 0000000..745c439
--- /dev/null
+++ b/drivers/net/wireless/intel/ipw2x00/libipw_module.c
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*******************************************************************************
+
+  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>
+
+
+  Contact Information:
+  Intel Linux Wireless <ilw@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 <linux/uaccess.h>
+#include <net/net_namespace.h>
+#include <net/arp.h>
+
+#include "libipw.h"
+
+#define DRV_DESCRIPTION "802.11 data/management/control stack"
+#define DRV_NAME        "libipw"
+#define DRV_PROCNAME	"ieee80211"
+#define DRV_VERSION	LIBIPW_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 struct cfg80211_ops libipw_config_ops = { };
+static void *libipw_wiphy_privid = &libipw_wiphy_privid;
+
+static int libipw_networks_allocate(struct libipw_device *ieee)
+{
+	int i, j;
+
+	for (i = 0; i < MAX_NETWORK_COUNT; i++) {
+		ieee->networks[i] = kzalloc(sizeof(struct libipw_network),
+					    GFP_KERNEL);
+		if (!ieee->networks[i]) {
+			LIBIPW_ERROR("Out of memory allocating beacons\n");
+			for (j = 0; j < i; j++)
+				kfree(ieee->networks[j]);
+			return -ENOMEM;
+		}
+	}
+
+	return 0;
+}
+
+static inline void libipw_networks_free(struct libipw_device *ieee)
+{
+	int i;
+
+	for (i = 0; i < MAX_NETWORK_COUNT; i++)
+		kfree(ieee->networks[i]);
+}
+
+void libipw_networks_age(struct libipw_device *ieee,
+                            unsigned long age_secs)
+{
+	struct libipw_network *network = NULL;
+	unsigned long flags;
+	unsigned long age_jiffies = msecs_to_jiffies(age_secs * MSEC_PER_SEC);
+
+	spin_lock_irqsave(&ieee->lock, flags);
+	list_for_each_entry(network, &ieee->network_list, list) {
+		network->last_scanned -= age_jiffies;
+	}
+	spin_unlock_irqrestore(&ieee->lock, flags);
+}
+EXPORT_SYMBOL(libipw_networks_age);
+
+static void libipw_networks_initialize(struct libipw_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);
+}
+
+struct net_device *alloc_libipw(int sizeof_priv, int monitor)
+{
+	struct libipw_device *ieee;
+	struct net_device *dev;
+	int err;
+
+	LIBIPW_DEBUG_INFO("Initializing...\n");
+
+	dev = alloc_etherdev(sizeof(struct libipw_device) + sizeof_priv);
+	if (!dev)
+		goto failed;
+
+	ieee = netdev_priv(dev);
+
+	ieee->dev = dev;
+
+	if (!monitor) {
+		ieee->wdev.wiphy = wiphy_new(&libipw_config_ops, 0);
+		if (!ieee->wdev.wiphy) {
+			LIBIPW_ERROR("Unable to allocate wiphy.\n");
+			goto failed_free_netdev;
+		}
+
+		ieee->dev->ieee80211_ptr = &ieee->wdev;
+		ieee->wdev.iftype = NL80211_IFTYPE_STATION;
+
+		/* Fill-out wiphy structure bits we know...  Not enough info
+		   here to call set_wiphy_dev or set MAC address or channel info
+		   -- have to do that in ->ndo_init... */
+		ieee->wdev.wiphy->privid = libipw_wiphy_privid;
+
+		ieee->wdev.wiphy->max_scan_ssids = 1;
+		ieee->wdev.wiphy->max_scan_ie_len = 0;
+		ieee->wdev.wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
+						| BIT(NL80211_IFTYPE_ADHOC);
+	}
+
+	err = libipw_networks_allocate(ieee);
+	if (err) {
+		LIBIPW_ERROR("Unable to allocate beacon storage: %d\n", err);
+		goto failed_free_wiphy;
+	}
+	libipw_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 fragmentation 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_wiphy:
+	if (!monitor)
+		wiphy_free(ieee->wdev.wiphy);
+failed_free_netdev:
+	free_netdev(dev);
+failed:
+	return NULL;
+}
+EXPORT_SYMBOL(alloc_libipw);
+
+void free_libipw(struct net_device *dev, int monitor)
+{
+	struct libipw_device *ieee = netdev_priv(dev);
+
+	lib80211_crypt_info_free(&ieee->crypt_info);
+
+	libipw_networks_free(ieee);
+
+	/* free cfg80211 resources */
+	if (!monitor)
+		wiphy_free(ieee->wdev.wiphy);
+
+	free_netdev(dev);
+}
+EXPORT_SYMBOL(free_libipw);
+
+#ifdef CPTCFG_LIBIPW_DEBUG
+
+static int debug = 0;
+u32 libipw_debug_level = 0;
+EXPORT_SYMBOL_GPL(libipw_debug_level);
+static struct proc_dir_entry *libipw_proc = NULL;
+
+static int debug_level_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "0x%08X\n", libipw_debug_level);
+	return 0;
+}
+
+static int debug_level_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, debug_level_proc_show, NULL);
+}
+
+static ssize_t debug_level_proc_write(struct file *file,
+		const char __user *buffer, size_t count, loff_t *pos)
+{
+	char buf[] = "0x00000000\n";
+	size_t len = min(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
+		libipw_debug_level = val;
+
+	return strnlen(buf, len);
+}
+
+static const struct file_operations debug_level_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_level_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= debug_level_proc_write,
+};
+#endif				/* CPTCFG_LIBIPW_DEBUG */
+
+static int __init libipw_init(void)
+{
+#ifdef CPTCFG_LIBIPW_DEBUG
+	struct proc_dir_entry *e;
+
+	libipw_debug_level = debug;
+	libipw_proc = proc_mkdir(DRV_PROCNAME, init_net.proc_net);
+	if (libipw_proc == NULL) {
+		LIBIPW_ERROR("Unable to create " DRV_PROCNAME
+				" proc directory\n");
+		return -EIO;
+	}
+	e = proc_create("debug_level", 0644, libipw_proc,
+			&debug_level_proc_fops);
+	if (!e) {
+		remove_proc_entry(DRV_PROCNAME, init_net.proc_net);
+		libipw_proc = NULL;
+		return -EIO;
+	}
+#endif				/* CPTCFG_LIBIPW_DEBUG */
+
+	printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+	printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+
+	return 0;
+}
+
+static void __exit libipw_exit(void)
+{
+#ifdef CPTCFG_LIBIPW_DEBUG
+	if (libipw_proc) {
+		remove_proc_entry("debug_level", libipw_proc);
+		remove_proc_entry(DRV_PROCNAME, init_net.proc_net);
+		libipw_proc = NULL;
+	}
+#endif				/* CPTCFG_LIBIPW_DEBUG */
+}
+
+#ifdef CPTCFG_LIBIPW_DEBUG
+#include <linux/moduleparam.h>
+module_param(debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+#endif				/* CPTCFG_LIBIPW_DEBUG */
+
+module_exit(libipw_exit);
+module_init(libipw_init);