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/wireless.h>
50 #include <linux/etherdevice.h>
51 #include <asm/uaccess.h>
54 #include "ieee80211.h"
56 MODULE_DESCRIPTION("802.11 data/management/control stack");
57 MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
58 MODULE_LICENSE("GPL");
60 #define DRV_NAME "ieee80211"
62 static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
67 ieee->networks = kcalloc(
68 MAX_NETWORK_COUNT, sizeof(struct ieee80211_network),
70 if (!ieee->networks) {
71 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
79 static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
83 kfree(ieee->networks);
84 ieee->networks = NULL;
87 static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee)
91 INIT_LIST_HEAD(&ieee->network_free_list);
92 INIT_LIST_HEAD(&ieee->network_list);
93 for (i = 0; i < MAX_NETWORK_COUNT; i++)
94 list_add_tail(&ieee->networks[i].list, &ieee->network_free_list);
98 struct net_device *alloc_ieee80211(int sizeof_priv)
100 struct ieee80211_device *ieee;
101 struct net_device *dev;
104 IEEE80211_DEBUG_INFO("Initializing...\n");
106 dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
108 IEEE80211_ERROR("Unable to network device.\n");
112 ieee = netdev_priv(dev);
113 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
116 err = ieee80211_networks_allocate(ieee);
118 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
122 ieee80211_networks_initialize(ieee);
125 /* Default fragmentation threshold is maximum payload size */
126 ieee->fts = DEFAULT_FTS;
127 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
130 /* Default to enabling full open WEP with host based encrypt/decrypt */
131 ieee->host_encrypt = 1;
132 ieee->host_decrypt = 1;
133 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
135 INIT_LIST_HEAD(&ieee->crypt_deinit_list);
136 init_timer(&ieee->crypt_deinit_timer);
137 ieee->crypt_deinit_timer.data = (unsigned long)ieee;
138 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
140 spin_lock_init(&ieee->lock);
141 spin_lock_init(&ieee->wpax_suitlist_lock);
142 spin_lock_init(&ieee->bw_spinlock);
143 spin_lock_init(&ieee->reorder_spinlock);
145 atomic_set(&(ieee->atm_chnlop), 0);
146 atomic_set(&(ieee->atm_swbw), 0);
148 ieee->wpax_type_set = 0;
149 ieee->wpa_enabled = 0;
150 ieee->tkip_countermeasures = 0;
151 ieee->drop_unencrypted = 0;
152 ieee->privacy_invoked = 0;
153 ieee->ieee802_1x = 1;
155 //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead.
156 ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary.
158 ieee80211_softmac_init(ieee);
160 ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
161 if (ieee->pHTInfo == NULL)
163 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
166 HTUpdateDefaultSetting(ieee);
167 HTInitializeHTInfo(ieee); //may move to other place.
170 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
171 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
173 for (i = 0; i < 17; i++) {
174 ieee->last_rxseq_num[i] = -1;
175 ieee->last_rxfrag_num[i] = -1;
176 ieee->last_packet_time[i] = 0;
179 //These function were added to load crypte module autoly
180 ieee80211_tkip_null();
181 ieee80211_wep_null();
182 ieee80211_ccmp_null();
194 void free_ieee80211(struct net_device *dev)
196 struct ieee80211_device *ieee = netdev_priv(dev);
198 //struct list_head *p, *q;
199 // del_timer_sync(&ieee->SwBwTimer);
200 kfree(ieee->pHTInfo);
201 ieee->pHTInfo = NULL;
203 ieee80211_softmac_free(ieee);
204 del_timer_sync(&ieee->crypt_deinit_timer);
205 ieee80211_crypt_deinit_entries(ieee, 1);
207 for (i = 0; i < WEP_KEYS; i++) {
208 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
211 crypt->ops->deinit(crypt->priv);
213 ieee->crypt[i] = NULL;
217 ieee80211_networks_free(ieee);
221 #ifdef CONFIG_IEEE80211_DEBUG
223 u32 ieee80211_debug_level;
225 // IEEE80211_DL_INFO |
227 // IEEE80211_DL_SCAN |
228 // IEEE80211_DL_STATE |
229 // IEEE80211_DL_MGMT |
230 // IEEE80211_DL_FRAG |
231 // IEEE80211_DL_EAP |
232 // IEEE80211_DL_DROP |
239 // IEEE80211_DL_REORDER|
240 // IEEE80211_DL_TRACE |
241 //IEEE80211_DL_DATA |
242 IEEE80211_DL_ERR //awayls open this flags to show error out
244 static struct proc_dir_entry *ieee80211_proc;
246 static int show_debug_level(struct seq_file *m, void *v)
248 return seq_printf(m, "0x%08X\n", ieee80211_debug_level);
251 static ssize_t write_debug_level(struct file *file, const char __user *buffer,
252 size_t count, loff_t *ppos)
255 int err = kstrtoul_from_user(buffer, count, 0, &val);
258 ieee80211_debug_level = val;
262 static int open_debug_level(struct inode *inode, struct file *file)
264 return single_open(file, show_debug_level, NULL);
267 static const struct file_operations fops = {
268 .open = open_debug_level,
271 .write = write_debug_level,
272 .release = single_release,
275 int __init ieee80211_debug_init(void)
277 struct proc_dir_entry *e;
279 ieee80211_debug_level = debug;
281 ieee80211_proc = proc_mkdir(DRV_NAME, init_net.proc_net);
282 if (ieee80211_proc == NULL) {
283 IEEE80211_ERROR("Unable to create " DRV_NAME
284 " proc directory\n");
287 e = proc_create("debug_level", S_IRUGO | S_IWUSR,
288 ieee80211_proc, &fops);
290 remove_proc_entry(DRV_NAME, init_net.proc_net);
291 ieee80211_proc = NULL;
297 void __exit ieee80211_debug_exit(void)
299 if (ieee80211_proc) {
300 remove_proc_entry("debug_level", ieee80211_proc);
301 remove_proc_entry(DRV_NAME, init_net.proc_net);
302 ieee80211_proc = NULL;
306 #include <linux/moduleparam.h>
307 module_param(debug, int, 0444);
308 MODULE_PARM_DESC(debug, "debug output mask");