2005-05-13 10:48:20 +08:00
|
|
|
/*******************************************************************************
|
|
|
|
|
|
|
|
Copyright(c) 2004 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
|
|
|
|
<jkmaline@cc.hut.fi>
|
|
|
|
Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.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/config.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/version.h>
|
|
|
|
#include <linux/wireless.h>
|
|
|
|
#include <linux/etherdevice.h>
|
|
|
|
#include <asm/uaccess.h>
|
|
|
|
#include <net/arp.h>
|
|
|
|
|
|
|
|
#include <net/ieee80211.h>
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("802.11 data/management/control stack");
|
|
|
|
MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
|
|
#define DRV_NAME "ieee80211"
|
|
|
|
|
|
|
|
static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
|
|
|
|
{
|
|
|
|
if (ieee->networks)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
ieee->networks = kmalloc(
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
|
|
|
memset(ieee->networks, 0,
|
|
|
|
MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
|
|
|
|
{
|
|
|
|
if (!ieee->networks)
|
|
|
|
return;
|
|
|
|
kfree(ieee->networks);
|
|
|
|
ieee->networks = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline 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);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
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 network device.\n");
|
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
ieee = netdev_priv(dev);
|
|
|
|
dev->hard_start_xmit = ieee80211_xmit;
|
|
|
|
|
|
|
|
ieee->dev = dev;
|
|
|
|
|
|
|
|
err = ieee80211_networks_allocate(ieee);
|
|
|
|
if (err) {
|
|
|
|
IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
|
|
|
|
err);
|
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
ieee80211_networks_initialize(ieee);
|
|
|
|
|
|
|
|
/* Default fragmentation threshold is maximum payload size */
|
|
|
|
ieee->fts = 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->ieee802_1x = 1; /* Default to supporting 802.1x */
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&ieee->crypt_deinit_list);
|
|
|
|
init_timer(&ieee->crypt_deinit_timer);
|
|
|
|
ieee->crypt_deinit_timer.data = (unsigned long)ieee;
|
|
|
|
ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
|
|
|
|
|
|
|
|
spin_lock_init(&ieee->lock);
|
|
|
|
|
|
|
|
ieee->wpa_enabled = 0;
|
|
|
|
ieee->tkip_countermeasures = 0;
|
|
|
|
ieee->drop_unencrypted = 0;
|
|
|
|
ieee->privacy_invoked = 0;
|
|
|
|
ieee->ieee802_1x = 1;
|
|
|
|
|
|
|
|
return dev;
|
|
|
|
|
|
|
|
failed:
|
|
|
|
if (dev)
|
|
|
|
free_netdev(dev);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void free_ieee80211(struct net_device *dev)
|
|
|
|
{
|
|
|
|
struct ieee80211_device *ieee = netdev_priv(dev);
|
|
|
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
del_timer_sync(&ieee->crypt_deinit_timer);
|
|
|
|
ieee80211_crypt_deinit_entries(ieee, 1);
|
|
|
|
|
|
|
|
for (i = 0; i < WEP_KEYS; i++) {
|
|
|
|
struct ieee80211_crypt_data *crypt = ieee->crypt[i];
|
|
|
|
if (crypt) {
|
|
|
|
if (crypt->ops) {
|
|
|
|
crypt->ops->deinit(crypt->priv);
|
|
|
|
module_put(crypt->ops->owner);
|
|
|
|
}
|
|
|
|
kfree(crypt);
|
|
|
|
ieee->crypt[i] = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ieee80211_networks_free(ieee);
|
|
|
|
free_netdev(dev);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_IEEE80211_DEBUG
|
|
|
|
|
|
|
|
static int debug = 0;
|
|
|
|
u32 ieee80211_debug_level = 0;
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2005-04-03 16:15:52 +08:00
|
|
|
static int store_debug_level(struct file *file, const char __user *buffer,
|
2005-05-13 10:48:20 +08:00
|
|
|
unsigned long count, void *data)
|
|
|
|
{
|
|
|
|
char buf[] = "0x00000000";
|
|
|
|
char *p = (char *)buf;
|
|
|
|
unsigned long val;
|
|
|
|
|
2005-04-03 16:15:52 +08:00
|
|
|
if (count > sizeof(buf) - 1)
|
|
|
|
count = sizeof(buf) - 1;
|
|
|
|
|
|
|
|
if (copy_from_user(buf, buffer, count))
|
2005-05-13 10:48:20 +08:00
|
|
|
return count;
|
2005-04-03 16:15:52 +08:00
|
|
|
buf[count] = 0;
|
|
|
|
/*
|
|
|
|
* what a FPOS... What, sscanf(buf, "%i", &val) would be too
|
|
|
|
* scary?
|
|
|
|
*/
|
2005-05-13 10:48:20 +08:00
|
|
|
if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
|
|
|
|
p++;
|
|
|
|
if (p[0] == 'x' || p[0] == 'X')
|
|
|
|
p++;
|
|
|
|
val = simple_strtoul(p, &p, 16);
|
|
|
|
} else
|
|
|
|
val = simple_strtoul(p, &p, 10);
|
|
|
|
if (p == buf)
|
|
|
|
printk(KERN_INFO DRV_NAME
|
|
|
|
": %s is not in hex or decimal form.\n", buf);
|
|
|
|
else
|
|
|
|
ieee80211_debug_level = val;
|
|
|
|
|
2005-04-03 16:15:52 +08:00
|
|
|
return strlen(buf);
|
2005-05-13 10:48:20 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int __init ieee80211_init(void)
|
|
|
|
{
|
|
|
|
struct proc_dir_entry *e;
|
|
|
|
|
|
|
|
ieee80211_debug_level = debug;
|
|
|
|
ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, 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, proc_net);
|
|
|
|
ieee80211_proc = NULL;
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
e->read_proc = show_debug_level;
|
|
|
|
e->write_proc = store_debug_level;
|
|
|
|
e->data = NULL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit ieee80211_exit(void)
|
|
|
|
{
|
|
|
|
if (ieee80211_proc) {
|
|
|
|
remove_proc_entry("debug_level", ieee80211_proc);
|
|
|
|
remove_proc_entry(DRV_NAME, proc_net);
|
|
|
|
ieee80211_proc = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#include <linux/moduleparam.h>
|
|
|
|
module_param(debug, int, 0444);
|
|
|
|
MODULE_PARM_DESC(debug, "debug output mask");
|
|
|
|
|
|
|
|
|
|
|
|
module_exit(ieee80211_exit);
|
|
|
|
module_init(ieee80211_init);
|
|
|
|
#endif
|
|
|
|
|
2005-08-26 08:00:53 +08:00
|
|
|
|
|
|
|
const char *escape_essid(const char *essid, u8 essid_len) {
|
|
|
|
static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
|
|
|
|
const char *s = essid;
|
|
|
|
char *d = escaped;
|
|
|
|
|
|
|
|
if (ieee80211_is_empty_essid(essid, essid_len)) {
|
|
|
|
memcpy(escaped, "<hidden>", sizeof("<hidden>"));
|
|
|
|
return escaped;
|
|
|
|
}
|
|
|
|
|
|
|
|
essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE);
|
|
|
|
while (essid_len--) {
|
|
|
|
if (*s == '\0') {
|
|
|
|
*d++ = '\\';
|
|
|
|
*d++ = '0';
|
|
|
|
s++;
|
|
|
|
} else {
|
|
|
|
*d++ = *s++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
*d = '\0';
|
|
|
|
return escaped;
|
|
|
|
}
|
|
|
|
|
2005-05-13 10:48:20 +08:00
|
|
|
EXPORT_SYMBOL(alloc_ieee80211);
|
|
|
|
EXPORT_SYMBOL(free_ieee80211);
|
2005-08-26 08:00:53 +08:00
|
|
|
EXPORT_SYMBOL(escape_essid);
|