1 /*******************************************************************************
3 Copyright(c) 2004 Intel Corporation. All rights reserved.
5 Portions of this file are based on the WEP enablement code provided by the
6 Host AP project hostap-drivers v0.1.3
7 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9 Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
11 This program is free software; you can redistribute it and/or modify it
12 under the terms of version 2 of the GNU General Public License as
13 published by the Free Software Foundation.
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
20 You should have received a copy of the GNU General Public License along with
21 this program; if not, write to the Free Software Foundation, Inc., 59
22 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 The full GNU General Public License is included in this distribution in the
28 James P. Ketrenos <ipw2100-admin@linux.intel.com>
29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *******************************************************************************/
33 #include <linux/compiler.h>
34 //#include <linux/config.h>
35 #include <linux/errno.h>
36 #include <linux/if_arp.h>
37 #include <linux/in6.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/netdevice.h>
43 #include <linux/pci.h>
44 #include <linux/proc_fs.h>
45 #include <linux/skbuff.h>
46 #include <linux/slab.h>
47 #include <linux/tcp.h>
48 #include <linux/types.h>
49 #include <linux/version.h>
50 #include <linux/wireless.h>
51 #include <linux/etherdevice.h>
52 #include <asm/uaccess.h>
55 #include "ieee80211.h"
57 MODULE_DESCRIPTION("802.11 data/management/control stack");
58 MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
59 MODULE_LICENSE("GPL");
61 #define DRV_NAME "ieee80211"
63 static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
68 ieee->networks = kmalloc(
69 MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
71 if (!ieee->networks) {
72 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
77 memset(ieee->networks, 0,
78 MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
83 static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
87 kfree(ieee->networks);
88 ieee->networks = NULL;
91 static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee)
95 INIT_LIST_HEAD(&ieee->network_free_list);
96 INIT_LIST_HEAD(&ieee->network_list);
97 for (i = 0; i < MAX_NETWORK_COUNT; i++)
98 list_add_tail(&ieee->networks[i].list, &ieee->network_free_list);
102 struct net_device *alloc_ieee80211(int sizeof_priv)
104 struct ieee80211_device *ieee;
105 struct net_device *dev;
108 IEEE80211_DEBUG_INFO("Initializing...\n");
110 dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
112 IEEE80211_ERROR("Unable to network device.\n");
116 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
117 ieee = netdev_priv(dev);
119 ieee = (struct ieee80211_device *)dev->priv;
122 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
125 err = ieee80211_networks_allocate(ieee);
127 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
131 ieee80211_networks_initialize(ieee);
134 /* Default fragmentation threshold is maximum payload size */
135 ieee->fts = DEFAULT_FTS;
136 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
139 /* Default to enabling full open WEP with host based encrypt/decrypt */
140 ieee->host_encrypt = 1;
141 ieee->host_decrypt = 1;
142 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
144 INIT_LIST_HEAD(&ieee->crypt_deinit_list);
145 init_timer(&ieee->crypt_deinit_timer);
146 ieee->crypt_deinit_timer.data = (unsigned long)ieee;
147 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
149 spin_lock_init(&ieee->lock);
150 spin_lock_init(&ieee->wpax_suitlist_lock);
151 spin_lock_init(&ieee->bw_spinlock);
152 spin_lock_init(&ieee->reorder_spinlock);
154 atomic_set(&(ieee->atm_chnlop), 0);
155 atomic_set(&(ieee->atm_swbw), 0);
157 ieee->wpax_type_set = 0;
158 ieee->wpa_enabled = 0;
159 ieee->tkip_countermeasures = 0;
160 ieee->drop_unencrypted = 0;
161 ieee->privacy_invoked = 0;
162 ieee->ieee802_1x = 1;
164 //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead.
165 ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary.
167 ieee80211_softmac_init(ieee);
169 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
170 ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
172 ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kmalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
173 memset(ieee->pHTInfo,0,sizeof(RT_HIGH_THROUGHPUT));
175 if (ieee->pHTInfo == NULL)
177 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
180 HTUpdateDefaultSetting(ieee);
181 HTInitializeHTInfo(ieee); //may move to other place.
184 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
185 INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq);
187 INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq, ieee);
190 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
191 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
193 for (i = 0; i < 17; i++) {
194 ieee->last_rxseq_num[i] = -1;
195 ieee->last_rxfrag_num[i] = -1;
196 ieee->last_packet_time[i] = 0;
199 //These function were added to load crypte module autoly
200 ieee80211_tkip_null();
201 ieee80211_wep_null();
202 ieee80211_ccmp_null();
208 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
217 void free_ieee80211(struct net_device *dev)
219 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
220 struct ieee80211_device *ieee = netdev_priv(dev);
222 struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv;
225 //struct list_head *p, *q;
226 // del_timer_sync(&ieee->SwBwTimer);
228 if (ieee->pHTInfo != NULL)
230 kfree(ieee->pHTInfo);
231 ieee->pHTInfo = NULL;
235 ieee80211_softmac_free(ieee);
236 del_timer_sync(&ieee->crypt_deinit_timer);
237 ieee80211_crypt_deinit_entries(ieee, 1);
239 for (i = 0; i < WEP_KEYS; i++) {
240 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
243 crypt->ops->deinit(crypt->priv);
244 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
245 module_put(crypt->ops->owner);
247 __MOD_DEC_USE_COUNT(crypt->ops->owner);
251 ieee->crypt[i] = NULL;
255 ieee80211_networks_free(ieee);
257 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) {
258 list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) {
259 kfree(list_entry(p, struct ieee_ibss_seq, list));
265 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
272 #ifdef CONFIG_IEEE80211_DEBUG
274 u32 ieee80211_debug_level = 0;
276 // IEEE80211_DL_INFO |
278 // IEEE80211_DL_SCAN |
279 // IEEE80211_DL_STATE |
280 // IEEE80211_DL_MGMT |
281 // IEEE80211_DL_FRAG |
282 // IEEE80211_DL_EAP |
283 // IEEE80211_DL_DROP |
290 // IEEE80211_DL_REORDER|
291 // IEEE80211_DL_TRACE |
292 //IEEE80211_DL_DATA |
293 IEEE80211_DL_ERR //awayls open this flags to show error out
295 struct proc_dir_entry *ieee80211_proc = NULL;
297 static int show_debug_level(char *page, char **start, off_t offset,
298 int count, int *eof, void *data)
300 return snprintf(page, count, "0x%08X\n", ieee80211_debug_level);
303 static int store_debug_level(struct file *file, const char *buffer,
304 unsigned long count, void *data)
306 char buf[] = "0x00000000";
307 unsigned long len = min(sizeof(buf) - 1, (u32)count);
308 char *p = (char *)buf;
311 if (copy_from_user(buf, buffer, len))
314 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
316 if (p[0] == 'x' || p[0] == 'X')
318 val = simple_strtoul(p, &p, 16);
320 val = simple_strtoul(p, &p, 10);
322 printk(KERN_INFO DRV_NAME
323 ": %s is not in hex or decimal form.\n", buf);
325 ieee80211_debug_level = val;
327 return strnlen(buf, count);
330 static int __init ieee80211_init(void)
332 struct proc_dir_entry *e;
334 ieee80211_debug_level = debug;
335 #if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
336 ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, proc_net);
338 ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net);
340 if (ieee80211_proc == NULL) {
341 IEEE80211_ERROR("Unable to create " DRV_NAME
342 " proc directory\n");
345 e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR,
348 #if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
349 remove_proc_entry(DRV_NAME, proc_net);
351 remove_proc_entry(DRV_NAME, init_net.proc_net);
353 ieee80211_proc = NULL;
356 e->read_proc = show_debug_level;
357 e->write_proc = store_debug_level;
363 static void __exit ieee80211_exit(void)
365 if (ieee80211_proc) {
366 remove_proc_entry("debug_level", ieee80211_proc);
367 #if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
368 remove_proc_entry(DRV_NAME, proc_net);
370 remove_proc_entry(DRV_NAME, init_net.proc_net);
372 ieee80211_proc = NULL;
376 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
377 #include <linux/moduleparam.h>
378 module_param(debug, int, 0444);
379 MODULE_PARM_DESC(debug, "debug output mask");
382 module_exit(ieee80211_exit);
383 module_init(ieee80211_init);
387 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
388 EXPORT_SYMBOL(alloc_ieee80211);
389 EXPORT_SYMBOL(free_ieee80211);
391 EXPORT_SYMBOL_NOVERS(alloc_ieee80211);
392 EXPORT_SYMBOL_NOVERS(free_ieee80211);