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 ieee = netdev_priv(dev);
117 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
120 err = ieee80211_networks_allocate(ieee);
122 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
126 ieee80211_networks_initialize(ieee);
129 /* Default fragmentation threshold is maximum payload size */
130 ieee->fts = DEFAULT_FTS;
131 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
134 /* Default to enabling full open WEP with host based encrypt/decrypt */
135 ieee->host_encrypt = 1;
136 ieee->host_decrypt = 1;
137 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
139 INIT_LIST_HEAD(&ieee->crypt_deinit_list);
140 init_timer(&ieee->crypt_deinit_timer);
141 ieee->crypt_deinit_timer.data = (unsigned long)ieee;
142 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
144 spin_lock_init(&ieee->lock);
145 spin_lock_init(&ieee->wpax_suitlist_lock);
146 spin_lock_init(&ieee->bw_spinlock);
147 spin_lock_init(&ieee->reorder_spinlock);
149 atomic_set(&(ieee->atm_chnlop), 0);
150 atomic_set(&(ieee->atm_swbw), 0);
152 ieee->wpax_type_set = 0;
153 ieee->wpa_enabled = 0;
154 ieee->tkip_countermeasures = 0;
155 ieee->drop_unencrypted = 0;
156 ieee->privacy_invoked = 0;
157 ieee->ieee802_1x = 1;
159 //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead.
160 ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary.
162 ieee80211_softmac_init(ieee);
164 ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
165 if (ieee->pHTInfo == NULL)
167 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
170 HTUpdateDefaultSetting(ieee);
171 HTInitializeHTInfo(ieee); //may move to other place.
174 INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq);
176 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
177 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
179 for (i = 0; i < 17; i++) {
180 ieee->last_rxseq_num[i] = -1;
181 ieee->last_rxfrag_num[i] = -1;
182 ieee->last_packet_time[i] = 0;
185 //These function were added to load crypte module autoly
186 ieee80211_tkip_null();
187 ieee80211_wep_null();
188 ieee80211_ccmp_null();
200 void free_ieee80211(struct net_device *dev)
202 struct ieee80211_device *ieee = netdev_priv(dev);
204 //struct list_head *p, *q;
205 // del_timer_sync(&ieee->SwBwTimer);
207 if (ieee->pHTInfo != NULL)
209 kfree(ieee->pHTInfo);
210 ieee->pHTInfo = NULL;
214 ieee80211_softmac_free(ieee);
215 del_timer_sync(&ieee->crypt_deinit_timer);
216 ieee80211_crypt_deinit_entries(ieee, 1);
218 for (i = 0; i < WEP_KEYS; i++) {
219 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
222 crypt->ops->deinit(crypt->priv);
223 module_put(crypt->ops->owner);
226 ieee->crypt[i] = NULL;
230 ieee80211_networks_free(ieee);
232 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) {
233 list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) {
234 kfree(list_entry(p, struct ieee_ibss_seq, list));
243 #ifdef CONFIG_IEEE80211_DEBUG
245 u32 ieee80211_debug_level = 0;
247 // IEEE80211_DL_INFO |
249 // IEEE80211_DL_SCAN |
250 // IEEE80211_DL_STATE |
251 // IEEE80211_DL_MGMT |
252 // IEEE80211_DL_FRAG |
253 // IEEE80211_DL_EAP |
254 // IEEE80211_DL_DROP |
261 // IEEE80211_DL_REORDER|
262 // IEEE80211_DL_TRACE |
263 //IEEE80211_DL_DATA |
264 IEEE80211_DL_ERR //awayls open this flags to show error out
266 struct proc_dir_entry *ieee80211_proc = NULL;
268 static int show_debug_level(char *page, char **start, off_t offset,
269 int count, int *eof, void *data)
271 return snprintf(page, count, "0x%08X\n", ieee80211_debug_level);
274 static int store_debug_level(struct file *file, const char *buffer,
275 unsigned long count, void *data)
277 char buf[] = "0x00000000";
278 unsigned long len = min(sizeof(buf) - 1, (u32)count);
279 char *p = (char *)buf;
282 if (copy_from_user(buf, buffer, len))
285 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
287 if (p[0] == 'x' || p[0] == 'X')
289 val = simple_strtoul(p, &p, 16);
291 val = simple_strtoul(p, &p, 10);
293 printk(KERN_INFO DRV_NAME
294 ": %s is not in hex or decimal form.\n", buf);
296 ieee80211_debug_level = val;
298 return strnlen(buf, count);
301 static int __init ieee80211_init(void)
303 struct proc_dir_entry *e;
305 ieee80211_debug_level = debug;
307 ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net);
308 if (ieee80211_proc == NULL) {
309 IEEE80211_ERROR("Unable to create " DRV_NAME
310 " proc directory\n");
313 e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR,
316 remove_proc_entry(DRV_NAME, init_net.proc_net);
317 ieee80211_proc = NULL;
320 e->read_proc = show_debug_level;
321 e->write_proc = store_debug_level;
327 static void __exit ieee80211_exit(void)
329 if (ieee80211_proc) {
330 remove_proc_entry("debug_level", ieee80211_proc);
331 remove_proc_entry(DRV_NAME, init_net.proc_net);
332 ieee80211_proc = NULL;
336 #include <linux/moduleparam.h>
337 module_param(debug, int, 0444);
338 MODULE_PARM_DESC(debug, "debug output mask");
341 module_exit(ieee80211_exit);
342 module_init(ieee80211_init);
345 EXPORT_SYMBOL(alloc_ieee80211);
346 EXPORT_SYMBOL(free_ieee80211);