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 <linux/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 setup_timer(&ieee->crypt_deinit_timer,
137 ieee80211_crypt_deinit_handler, (unsigned long)ieee);
139 spin_lock_init(&ieee->lock);
140 spin_lock_init(&ieee->wpax_suitlist_lock);
141 spin_lock_init(&ieee->bw_spinlock);
142 spin_lock_init(&ieee->reorder_spinlock);
144 atomic_set(&(ieee->atm_chnlop), 0);
145 atomic_set(&(ieee->atm_swbw), 0);
147 ieee->wpax_type_set = 0;
148 ieee->wpa_enabled = 0;
149 ieee->tkip_countermeasures = 0;
150 ieee->drop_unencrypted = 0;
151 ieee->privacy_invoked = 0;
152 ieee->ieee802_1x = 1;
154 //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead.
155 ieee->hwsec_active = 0; /* disable hwsec, switch it on when necessary. */
157 ieee80211_softmac_init(ieee);
159 ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
160 if (ieee->pHTInfo == NULL)
162 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
165 HTUpdateDefaultSetting(ieee);
166 HTInitializeHTInfo(ieee); /* may move to other place. */
169 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
170 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
172 for (i = 0; i < 17; i++) {
173 ieee->last_rxseq_num[i] = -1;
174 ieee->last_rxfrag_num[i] = -1;
175 ieee->last_packet_time[i] = 0;
178 /* These function were added to load crypte module autoly */
179 ieee80211_tkip_null();
180 ieee80211_ccmp_null();
192 void free_ieee80211(struct net_device *dev)
194 struct ieee80211_device *ieee = netdev_priv(dev);
196 /* struct list_head *p, *q; */
197 // del_timer_sync(&ieee->SwBwTimer);
198 kfree(ieee->pHTInfo);
199 ieee->pHTInfo = NULL;
201 ieee80211_softmac_free(ieee);
202 del_timer_sync(&ieee->crypt_deinit_timer);
203 ieee80211_crypt_deinit_entries(ieee, 1);
205 for (i = 0; i < WEP_KEYS; i++) {
206 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
209 crypt->ops->deinit(crypt->priv);
211 ieee->crypt[i] = NULL;
215 ieee80211_networks_free(ieee);
219 #ifdef CONFIG_IEEE80211_DEBUG
221 u32 ieee80211_debug_level;
223 // IEEE80211_DL_INFO |
225 // IEEE80211_DL_SCAN |
226 // IEEE80211_DL_STATE |
227 // IEEE80211_DL_MGMT |
228 // IEEE80211_DL_FRAG |
229 // IEEE80211_DL_EAP |
230 // IEEE80211_DL_DROP |
237 // IEEE80211_DL_REORDER|
238 // IEEE80211_DL_TRACE |
239 //IEEE80211_DL_DATA |
240 IEEE80211_DL_ERR /* awayls open this flags to show error out */
242 static struct proc_dir_entry *ieee80211_proc;
244 static int show_debug_level(struct seq_file *m, void *v)
246 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 module_param(debug, int, 0444);
307 MODULE_PARM_DESC(debug, "debug output mask");