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 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_wep_null();
181 ieee80211_ccmp_null();
193 void free_ieee80211(struct net_device *dev)
195 struct ieee80211_device *ieee = netdev_priv(dev);
197 /* struct list_head *p, *q; */
198 // del_timer_sync(&ieee->SwBwTimer);
199 kfree(ieee->pHTInfo);
200 ieee->pHTInfo = NULL;
202 ieee80211_softmac_free(ieee);
203 del_timer_sync(&ieee->crypt_deinit_timer);
204 ieee80211_crypt_deinit_entries(ieee, 1);
206 for (i = 0; i < WEP_KEYS; i++) {
207 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
210 crypt->ops->deinit(crypt->priv);
212 ieee->crypt[i] = NULL;
216 ieee80211_networks_free(ieee);
220 #ifdef CONFIG_IEEE80211_DEBUG
222 u32 ieee80211_debug_level;
224 // IEEE80211_DL_INFO |
226 // IEEE80211_DL_SCAN |
227 // IEEE80211_DL_STATE |
228 // IEEE80211_DL_MGMT |
229 // IEEE80211_DL_FRAG |
230 // IEEE80211_DL_EAP |
231 // IEEE80211_DL_DROP |
238 // IEEE80211_DL_REORDER|
239 // IEEE80211_DL_TRACE |
240 //IEEE80211_DL_DATA |
241 IEEE80211_DL_ERR /* awayls open this flags to show error out */
243 static struct proc_dir_entry *ieee80211_proc;
245 static int show_debug_level(struct seq_file *m, void *v)
247 seq_printf(m, "0x%08X\n", ieee80211_debug_level);
252 static ssize_t write_debug_level(struct file *file, const char __user *buffer,
253 size_t count, loff_t *ppos)
256 int err = kstrtoul_from_user(buffer, count, 0, &val);
259 ieee80211_debug_level = val;
263 static int open_debug_level(struct inode *inode, struct file *file)
265 return single_open(file, show_debug_level, NULL);
268 static const struct file_operations fops = {
269 .open = open_debug_level,
272 .write = write_debug_level,
273 .release = single_release,
276 int __init ieee80211_debug_init(void)
278 struct proc_dir_entry *e;
280 ieee80211_debug_level = debug;
282 ieee80211_proc = proc_mkdir(DRV_NAME, init_net.proc_net);
283 if (ieee80211_proc == NULL) {
284 IEEE80211_ERROR("Unable to create " DRV_NAME
285 " proc directory\n");
288 e = proc_create("debug_level", S_IRUGO | S_IWUSR,
289 ieee80211_proc, &fops);
291 remove_proc_entry(DRV_NAME, init_net.proc_net);
292 ieee80211_proc = NULL;
298 void __exit ieee80211_debug_exit(void)
300 if (ieee80211_proc) {
301 remove_proc_entry("debug_level", ieee80211_proc);
302 remove_proc_entry(DRV_NAME, init_net.proc_net);
303 ieee80211_proc = NULL;
307 module_param(debug, int, 0444);
308 MODULE_PARM_DESC(debug, "debug output mask");