]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
Staging: Drop memory allocation cast
[net-next-2.6.git] / drivers / staging / rtl8192e / ieee80211 / ieee80211_module.c
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1/*******************************************************************************
2
3 Copyright(c) 2004 Intel Corporation. All rights reserved.
4
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
8 <jkmaline@cc.hut.fi>
9 Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
10
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.
14
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
18 more details.
19
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.
23
24 The full GNU General Public License is included in this distribution in the
25 file called LICENSE.
26
27 Contact Information:
28 James P. Ketrenos <ipw2100-admin@linux.intel.com>
29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30
31*******************************************************************************/
32
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>
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
fb5fe277 122 dev->hard_start_xmit = ieee80211_rtl_xmit;
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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 /* Default fragmentation threshold is maximum payload size */
138 ieee->fts = DEFAULT_FTS;
139 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
140 ieee->open_wep = 1;
141
142 /* Default to enabling full open WEP with host based encrypt/decrypt */
143 ieee->host_encrypt = 1;
144 ieee->host_decrypt = 1;
145 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
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 //added by WB
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;
bbc9a991 167 //ieee->hwsec_support = 1; //default support hw security. //use module_param instead.
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168 ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary.
169
170 ieee80211_softmac_init(ieee);
171
172#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
32414878 173 ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
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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); //may move to other place.
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//These function were added to load crypte module autoly
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 //struct list_head *p, *q;
229// del_timer_sync(&ieee->SwBwTimer);
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) {
a010a337 245 if (crypt->ops)
ecdfa446 246 crypt->ops->deinit(crypt->priv);
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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 // IEEE80211_DL_INFO |
274 // IEEE80211_DL_WX |
275 // IEEE80211_DL_SCAN |
276 // IEEE80211_DL_STATE |
277 // IEEE80211_DL_MGMT |
278 // IEEE80211_DL_FRAG |
279 // IEEE80211_DL_EAP |
280 // IEEE80211_DL_DROP |
281 // IEEE80211_DL_TX |
282 // IEEE80211_DL_RX |
283 //IEEE80211_DL_QOS |
284 // IEEE80211_DL_HT |
285 // IEEE80211_DL_TS |
286// IEEE80211_DL_BA |
287 // IEEE80211_DL_REORDER|
288// IEEE80211_DL_TRACE |
289 //IEEE80211_DL_DATA |
290 IEEE80211_DL_ERR //awayls open this flags to show error out
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
fb5fe277 336int __init ieee80211_rtl_init(void)
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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
fb5fe277 392void __exit ieee80211_rtl_exit(void)
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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
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415//module_exit(ieee80211_rtl_exit);
416//module_init(ieee80211_rtl_init);
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417#endif
418#endif
419
420#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
421//EXPORT_SYMBOL(alloc_ieee80211);
422//EXPORT_SYMBOL(free_ieee80211);
423#else
424EXPORT_SYMBOL_NOVERS(alloc_ieee80211);
425EXPORT_SYMBOL_NOVERS(free_ieee80211);
426#endif