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33#include <linux/compiler.h>
34
35#include <linux/errno.h>
36#include <linux/if_arp.h>
37#include <linux/in6.h>
38#include <linux/in.h>
39#include <linux/ip.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>
53#include <net/arp.h>
54
55#include "ieee80211.h"
56
57MODULE_DESCRIPTION("802.11 data/management/control stack");
58MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
59MODULE_LICENSE("GPL");
60
61#define DRV_NAME "ieee80211"
62
63static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
64{
65 if (ieee->networks)
66 return 0;
67
68 ieee->networks = kmalloc(
69 MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
70 GFP_KERNEL);
71 if (!ieee->networks) {
72 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
73 ieee->dev->name);
74 return -ENOMEM;
75 }
76
77 memset(ieee->networks, 0,
78 MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
79
80 return 0;
81}
82
83static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
84{
85 if (!ieee->networks)
86 return;
87 kfree(ieee->networks);
88 ieee->networks = NULL;
89}
90
91static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee)
92{
93 int i;
94
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);
99}
100
101
102struct net_device *alloc_ieee80211(int sizeof_priv)
103{
104 struct ieee80211_device *ieee;
105 struct net_device *dev;
106 int i,err;
107
108 IEEE80211_DEBUG_INFO("Initializing...\n");
109
110 dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
111 if (!dev) {
112 IEEE80211_ERROR("Unable to network device.\n");
113 goto failed;
114 }
115
116#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
117 ieee = netdev_priv(dev);
118#else
119 ieee = (struct ieee80211_device *)dev->priv;
120#endif
121#if 0
122 dev->hard_start_xmit = ieee80211_xmit;
123#endif
124
125 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
126 ieee->dev = dev;
127
128 err = ieee80211_networks_allocate(ieee);
129 if (err) {
130 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
131 err);
132 goto failed;
133 }
134 ieee80211_networks_initialize(ieee);
135
136
137
138 ieee->fts = DEFAULT_FTS;
139 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
140 ieee->open_wep = 1;
141
142
143 ieee->host_encrypt = 1;
144 ieee->host_decrypt = 1;
145 ieee->ieee802_1x = 1;
146
147 INIT_LIST_HEAD(&ieee->crypt_deinit_list);
148 init_timer(&ieee->crypt_deinit_timer);
149 ieee->crypt_deinit_timer.data = (unsigned long)ieee;
150 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
151
152 spin_lock_init(&ieee->lock);
153 spin_lock_init(&ieee->wpax_suitlist_lock);
154 spin_lock_init(&ieee->bw_spinlock);
155 spin_lock_init(&ieee->reorder_spinlock);
156
157 atomic_set(&(ieee->atm_chnlop), 0);
158 atomic_set(&(ieee->atm_swbw), 0);
159
160 ieee->wpax_type_set = 0;
161 ieee->wpa_enabled = 0;
162 ieee->tkip_countermeasures = 0;
163 ieee->drop_unencrypted = 0;
164 ieee->privacy_invoked = 0;
165 ieee->ieee802_1x = 1;
166 ieee->raw_tx = 0;
167
168 ieee->hwsec_active = 0;
169
170 ieee80211_softmac_init(ieee);
171
172#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
173 ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
174#else
175 ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kmalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
176 memset(ieee->pHTInfo,0,sizeof(RT_HIGH_THROUGHPUT));
177#endif
178 if (ieee->pHTInfo == NULL)
179 {
180 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
181 return NULL;
182 }
183 HTUpdateDefaultSetting(ieee);
184 HTInitializeHTInfo(ieee);
185 TSInitialize(ieee);
186#if 0
187#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
188 INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq);
189#else
190 INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq, ieee);
191#endif
192#endif
193 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
194 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
195
196 for (i = 0; i < 17; i++) {
197 ieee->last_rxseq_num[i] = -1;
198 ieee->last_rxfrag_num[i] = -1;
199 ieee->last_packet_time[i] = 0;
200 }
201
202
203 ieee80211_tkip_null();
204 ieee80211_wep_null();
205 ieee80211_ccmp_null();
206
207 return dev;
208
209 failed:
210 if (dev)
211#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
212 free_netdev(dev);
213#else
214 kfree(dev);
215#endif
216 return NULL;
217}
218
219
220void free_ieee80211(struct net_device *dev)
221{
222#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
223 struct ieee80211_device *ieee = netdev_priv(dev);
224#else
225 struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv;
226#endif
227 int i;
228
229
230#if 1
231 if (ieee->pHTInfo != NULL)
232 {
233 kfree(ieee->pHTInfo);
234 ieee->pHTInfo = NULL;
235 }
236#endif
237 RemoveAllTS(ieee);
238 ieee80211_softmac_free(ieee);
239 del_timer_sync(&ieee->crypt_deinit_timer);
240 ieee80211_crypt_deinit_entries(ieee, 1);
241
242 for (i = 0; i < WEP_KEYS; i++) {
243 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
244 if (crypt) {
245 if (crypt->ops)
246 crypt->ops->deinit(crypt->priv);
247 kfree(crypt);
248 ieee->crypt[i] = NULL;
249 }
250 }
251
252 ieee80211_networks_free(ieee);
253#if 0
254 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) {
255 list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) {
256 kfree(list_entry(p, struct ieee_ibss_seq, list));
257 list_del(p);
258 }
259 }
260
261#endif
262#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
263 free_netdev(dev);
264#else
265 kfree(dev);
266#endif
267}
268
269#ifdef CONFIG_IEEE80211_DEBUG
270
271u32 ieee80211_debug_level = 0;
272static int debug = \
273
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289
290 IEEE80211_DL_ERR
291 ;
292struct proc_dir_entry *ieee80211_proc = NULL;
293
294static int show_debug_level(char *page, char **start, off_t offset,
295 int count, int *eof, void *data)
296{
297 return snprintf(page, count, "0x%08X\n", ieee80211_debug_level);
298}
299
300static int store_debug_level(struct file *file, const char *buffer,
301 unsigned long count, void *data)
302{
303 char buf[] = "0x00000000";
304 unsigned long len = min(sizeof(buf) - 1, (u32)count);
305 char *p = (char *)buf;
306 unsigned long val;
307
308 if (copy_from_user(buf, buffer, len))
309 return count;
310 buf[len] = 0;
311 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
312 p++;
313 if (p[0] == 'x' || p[0] == 'X')
314 p++;
315 val = simple_strtoul(p, &p, 16);
316 } else
317 val = simple_strtoul(p, &p, 10);
318 if (p == buf)
319 printk(KERN_INFO DRV_NAME
320 ": %s is not in hex or decimal form.\n", buf);
321 else
322 ieee80211_debug_level = val;
323
324 return strnlen(buf, count);
325}
326
327extern int ieee80211_crypto_init(void);
328extern void ieee80211_crypto_deinit(void);
329extern int ieee80211_crypto_tkip_init(void);
330extern void ieee80211_crypto_tkip_exit(void);
331extern int ieee80211_crypto_ccmp_init(void);
332extern void ieee80211_crypto_ccmp_exit(void);
333extern int ieee80211_crypto_wep_init(void);
334extern void ieee80211_crypto_wep_exit(void);
335
336int __init ieee80211_init(void)
337{
338 struct proc_dir_entry *e;
339 int retval;
340
341 retval = ieee80211_crypto_init();
342 if (retval)
343 return retval;
344 retval = ieee80211_crypto_tkip_init();
345 if (retval) {
346 ieee80211_crypto_deinit();
347 return retval;
348 }
349 retval = ieee80211_crypto_ccmp_init();
350 if (retval) {
351 ieee80211_crypto_tkip_exit();
352 ieee80211_crypto_deinit();
353 return retval;
354 }
355 retval = ieee80211_crypto_wep_init();
356 if (retval) {
357 ieee80211_crypto_ccmp_exit();
358 ieee80211_crypto_tkip_exit();
359 ieee80211_crypto_deinit();
360 return retval;
361 }
362
363 ieee80211_debug_level = debug;
364#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
365 ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, proc_net);
366#else
367 ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net);
368#endif
369 if (ieee80211_proc == NULL) {
370 IEEE80211_ERROR("Unable to create " DRV_NAME
371 " proc directory\n");
372 return -EIO;
373 }
374 e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR,
375 ieee80211_proc);
376 if (!e) {
377#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
378 remove_proc_entry(DRV_NAME, proc_net);
379#else
380 remove_proc_entry(DRV_NAME, init_net.proc_net);
381#endif
382 ieee80211_proc = NULL;
383 return -EIO;
384 }
385 e->read_proc = show_debug_level;
386 e->write_proc = store_debug_level;
387 e->data = NULL;
388
389 return 0;
390}
391
392void __exit ieee80211_exit(void)
393{
394 if (ieee80211_proc) {
395 remove_proc_entry("debug_level", ieee80211_proc);
396#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
397 remove_proc_entry(DRV_NAME, proc_net);
398#else
399 remove_proc_entry(DRV_NAME, init_net.proc_net);
400#endif
401 ieee80211_proc = NULL;
402 }
403 ieee80211_crypto_wep_exit();
404 ieee80211_crypto_ccmp_exit();
405 ieee80211_crypto_tkip_exit();
406 ieee80211_crypto_deinit();
407}
408
409#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
410#include <linux/moduleparam.h>
411module_param(debug, int, 0444);
412MODULE_PARM_DESC(debug, "debug output mask");
413
414
415
416
417#endif
418#endif
419
420#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
421
422
423#else
424EXPORT_SYMBOL_NOVERS(alloc_ieee80211);
425EXPORT_SYMBOL_NOVERS(free_ieee80211);
426#endif
427
