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c8d86be3 GKH |
1 | /* IEEE 802.11 SoftMAC layer |
2 | * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it> | |
3 | * | |
4 | * Mostly extracted from the rtl8180-sa2400 driver for the | |
5 | * in-kernel generic ieee802.11 stack. | |
6 | * | |
7 | * Few lines might be stolen from other part of the ieee80211 | |
8 | * stack. Copyright who own it's copyright | |
9 | * | |
10 | * WPA code stolen from the ipw2200 driver. | |
11 | * Copyright who own it's copyright. | |
12 | * | |
13 | * released under the GPL | |
14 | */ | |
15 | ||
16 | ||
17 | #include "ieee80211.h" | |
18 | ||
19 | #include <linux/random.h> | |
20 | #include <linux/delay.h> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
c8d86be3 GKH |
22 | #include <linux/version.h> |
23 | #include <asm/uaccess.h> | |
24 | ||
c8d86be3 | 25 | #include "dot11d.h" |
c8d86be3 GKH |
26 | u8 rsn_authen_cipher_suite[16][4] = { |
27 | {0x00,0x0F,0xAC,0x00}, //Use group key, //Reserved | |
28 | {0x00,0x0F,0xAC,0x01}, //WEP-40 //RSNA default | |
29 | {0x00,0x0F,0xAC,0x02}, //TKIP //NONE //{used just as default} | |
30 | {0x00,0x0F,0xAC,0x03}, //WRAP-historical | |
31 | {0x00,0x0F,0xAC,0x04}, //CCMP | |
32 | {0x00,0x0F,0xAC,0x05}, //WEP-104 | |
33 | }; | |
34 | ||
35 | short ieee80211_is_54g(struct ieee80211_network net) | |
36 | { | |
37 | return ((net.rates_ex_len > 0) || (net.rates_len > 4)); | |
38 | } | |
39 | ||
40 | short ieee80211_is_shortslot(struct ieee80211_network net) | |
41 | { | |
42 | return (net.capability & WLAN_CAPABILITY_SHORT_SLOT); | |
43 | } | |
44 | ||
45 | /* returns the total length needed for pleacing the RATE MFIE | |
46 | * tag and the EXTENDED RATE MFIE tag if needed. | |
47 | * It encludes two bytes per tag for the tag itself and its len | |
48 | */ | |
49 | unsigned int ieee80211_MFIE_rate_len(struct ieee80211_device *ieee) | |
50 | { | |
51 | unsigned int rate_len = 0; | |
52 | ||
53 | if (ieee->modulation & IEEE80211_CCK_MODULATION) | |
54 | rate_len = IEEE80211_CCK_RATE_LEN + 2; | |
55 | ||
56 | if (ieee->modulation & IEEE80211_OFDM_MODULATION) | |
57 | ||
58 | rate_len += IEEE80211_OFDM_RATE_LEN + 2; | |
59 | ||
60 | return rate_len; | |
61 | } | |
62 | ||
63 | /* pleace the MFIE rate, tag to the memory (double) poined. | |
64 | * Then it updates the pointer so that | |
65 | * it points after the new MFIE tag added. | |
66 | */ | |
67 | void ieee80211_MFIE_Brate(struct ieee80211_device *ieee, u8 **tag_p) | |
68 | { | |
69 | u8 *tag = *tag_p; | |
70 | ||
71 | if (ieee->modulation & IEEE80211_CCK_MODULATION){ | |
72 | *tag++ = MFIE_TYPE_RATES; | |
73 | *tag++ = 4; | |
74 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; | |
75 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; | |
76 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB; | |
77 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB; | |
78 | } | |
79 | ||
80 | /* We may add an option for custom rates that specific HW might support */ | |
81 | *tag_p = tag; | |
82 | } | |
83 | ||
84 | void ieee80211_MFIE_Grate(struct ieee80211_device *ieee, u8 **tag_p) | |
85 | { | |
86 | u8 *tag = *tag_p; | |
87 | ||
88 | if (ieee->modulation & IEEE80211_OFDM_MODULATION){ | |
89 | ||
90 | *tag++ = MFIE_TYPE_RATES_EX; | |
91 | *tag++ = 8; | |
92 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB; | |
93 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB; | |
94 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB; | |
95 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB; | |
96 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB; | |
97 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB; | |
98 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB; | |
99 | *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB; | |
100 | ||
101 | } | |
102 | ||
103 | /* We may add an option for custom rates that specific HW might support */ | |
104 | *tag_p = tag; | |
105 | } | |
106 | ||
107 | ||
108 | void ieee80211_WMM_Info(struct ieee80211_device *ieee, u8 **tag_p) { | |
109 | u8 *tag = *tag_p; | |
110 | ||
111 | *tag++ = MFIE_TYPE_GENERIC; //0 | |
112 | *tag++ = 7; | |
113 | *tag++ = 0x00; | |
114 | *tag++ = 0x50; | |
115 | *tag++ = 0xf2; | |
116 | *tag++ = 0x02;//5 | |
117 | *tag++ = 0x00; | |
118 | *tag++ = 0x01; | |
119 | #ifdef SUPPORT_USPD | |
120 | if(ieee->current_network.wmm_info & 0x80) { | |
121 | *tag++ = 0x0f|MAX_SP_Len; | |
122 | } else { | |
123 | *tag++ = MAX_SP_Len; | |
124 | } | |
125 | #else | |
126 | *tag++ = MAX_SP_Len; | |
127 | #endif | |
128 | *tag_p = tag; | |
129 | } | |
130 | ||
c8d86be3 GKH |
131 | void ieee80211_TURBO_Info(struct ieee80211_device *ieee, u8 **tag_p) { |
132 | u8 *tag = *tag_p; | |
133 | ||
134 | *tag++ = MFIE_TYPE_GENERIC; //0 | |
135 | *tag++ = 7; | |
136 | *tag++ = 0x00; | |
137 | *tag++ = 0xe0; | |
138 | *tag++ = 0x4c; | |
139 | *tag++ = 0x01;//5 | |
140 | *tag++ = 0x02; | |
141 | *tag++ = 0x11; | |
142 | *tag++ = 0x00; | |
143 | ||
144 | *tag_p = tag; | |
145 | printk(KERN_ALERT "This is enable turbo mode IE process\n"); | |
146 | } | |
c8d86be3 GKH |
147 | |
148 | void enqueue_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb) | |
149 | { | |
150 | int nh; | |
151 | nh = (ieee->mgmt_queue_head +1) % MGMT_QUEUE_NUM; | |
152 | ||
153 | /* | |
154 | * if the queue is full but we have newer frames then | |
155 | * just overwrites the oldest. | |
156 | * | |
157 | * if (nh == ieee->mgmt_queue_tail) | |
158 | * return -1; | |
159 | */ | |
160 | ieee->mgmt_queue_head = nh; | |
161 | ieee->mgmt_queue_ring[nh] = skb; | |
162 | ||
163 | //return 0; | |
164 | } | |
165 | ||
166 | struct sk_buff *dequeue_mgmt(struct ieee80211_device *ieee) | |
167 | { | |
168 | struct sk_buff *ret; | |
169 | ||
170 | if(ieee->mgmt_queue_tail == ieee->mgmt_queue_head) | |
171 | return NULL; | |
172 | ||
173 | ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail]; | |
174 | ||
175 | ieee->mgmt_queue_tail = | |
176 | (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM; | |
177 | ||
178 | return ret; | |
179 | } | |
180 | ||
181 | void init_mgmt_queue(struct ieee80211_device *ieee) | |
182 | { | |
183 | ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0; | |
184 | } | |
185 | ||
186 | ||
187 | void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl); | |
188 | ||
189 | inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee) | |
190 | { | |
191 | unsigned long flags; | |
192 | short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE; | |
193 | struct ieee80211_hdr_3addr *header= | |
194 | (struct ieee80211_hdr_3addr *) skb->data; | |
195 | ||
196 | ||
197 | spin_lock_irqsave(&ieee->lock, flags); | |
198 | ||
199 | /* called with 2nd param 0, no mgmt lock required */ | |
200 | ieee80211_sta_wakeup(ieee,0); | |
201 | ||
202 | if(single){ | |
203 | if(ieee->queue_stop){ | |
204 | ||
205 | enqueue_mgmt(ieee,skb); | |
206 | }else{ | |
b6b1ac69 | 207 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0]<<4); |
c8d86be3 GKH |
208 | |
209 | if (ieee->seq_ctrl[0] == 0xFFF) | |
210 | ieee->seq_ctrl[0] = 0; | |
211 | else | |
212 | ieee->seq_ctrl[0]++; | |
213 | ||
214 | /* avoid watchdog triggers */ | |
215 | ieee->dev->trans_start = jiffies; | |
216 | ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate); | |
217 | } | |
218 | ||
219 | spin_unlock_irqrestore(&ieee->lock, flags); | |
220 | }else{ | |
221 | spin_unlock_irqrestore(&ieee->lock, flags); | |
222 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags); | |
223 | ||
b6b1ac69 | 224 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
c8d86be3 GKH |
225 | |
226 | if (ieee->seq_ctrl[0] == 0xFFF) | |
227 | ieee->seq_ctrl[0] = 0; | |
228 | else | |
229 | ieee->seq_ctrl[0]++; | |
230 | ||
231 | /* avoid watchdog triggers */ | |
232 | ieee->dev->trans_start = jiffies; | |
233 | ieee->softmac_hard_start_xmit(skb,ieee->dev); | |
234 | ||
235 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags); | |
236 | } | |
237 | } | |
238 | ||
239 | ||
240 | inline void softmac_ps_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee) | |
241 | { | |
242 | ||
243 | short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE; | |
244 | struct ieee80211_hdr_3addr *header = | |
245 | (struct ieee80211_hdr_3addr *) skb->data; | |
246 | ||
247 | ||
248 | if(single){ | |
249 | ||
b6b1ac69 | 250 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
c8d86be3 GKH |
251 | |
252 | if (ieee->seq_ctrl[0] == 0xFFF) | |
253 | ieee->seq_ctrl[0] = 0; | |
254 | else | |
255 | ieee->seq_ctrl[0]++; | |
256 | ||
257 | /* avoid watchdog triggers */ | |
258 | ieee->dev->trans_start = jiffies; | |
259 | ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate); | |
260 | ||
261 | }else{ | |
262 | ||
b6b1ac69 | 263 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
c8d86be3 GKH |
264 | |
265 | if (ieee->seq_ctrl[0] == 0xFFF) | |
266 | ieee->seq_ctrl[0] = 0; | |
267 | else | |
268 | ieee->seq_ctrl[0]++; | |
269 | ||
270 | /* avoid watchdog triggers */ | |
271 | ieee->dev->trans_start = jiffies; | |
272 | ieee->softmac_hard_start_xmit(skb,ieee->dev); | |
273 | ||
274 | } | |
275 | // dev_kfree_skb_any(skb);//edit by thomas | |
276 | } | |
277 | //by amy for power save | |
278 | inline struct sk_buff *ieee80211_disassociate_skb( | |
279 | struct ieee80211_network *beacon, | |
280 | struct ieee80211_device *ieee, | |
281 | u8 asRsn) | |
282 | { | |
283 | struct sk_buff *skb; | |
284 | struct ieee80211_disassoc_frame *disass; | |
285 | ||
286 | skb = dev_alloc_skb(sizeof(struct ieee80211_disassoc_frame)); | |
287 | if (!skb) | |
288 | return NULL; | |
289 | ||
290 | disass = (struct ieee80211_disassoc_frame *) skb_put(skb,sizeof(struct ieee80211_disassoc_frame)); | |
b6b1ac69 | 291 | disass->header.frame_control = cpu_to_le16(IEEE80211_STYPE_DISASSOC); |
c8d86be3 GKH |
292 | disass->header.duration_id = 0; |
293 | ||
294 | memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN); | |
295 | memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN); | |
296 | memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN); | |
297 | ||
298 | disass->reasoncode = asRsn; | |
299 | return skb; | |
300 | } | |
301 | void | |
302 | SendDisassociation( | |
303 | struct ieee80211_device *ieee, | |
304 | u8* asSta, | |
305 | u8 asRsn | |
306 | ) | |
307 | { | |
308 | struct ieee80211_network *beacon = &ieee->current_network; | |
309 | struct sk_buff *skb; | |
310 | skb = ieee80211_disassociate_skb(beacon,ieee,asRsn); | |
311 | if (skb){ | |
312 | softmac_mgmt_xmit(skb, ieee); | |
313 | //dev_kfree_skb_any(skb);//edit by thomas | |
314 | } | |
315 | } | |
316 | ||
317 | //by amy for power save | |
318 | inline struct sk_buff *ieee80211_probe_req(struct ieee80211_device *ieee) | |
319 | { | |
320 | unsigned int len,rate_len; | |
321 | u8 *tag; | |
322 | struct sk_buff *skb; | |
323 | struct ieee80211_probe_request *req; | |
324 | ||
c8d86be3 GKH |
325 | len = ieee->current_network.ssid_len; |
326 | ||
327 | rate_len = ieee80211_MFIE_rate_len(ieee); | |
328 | ||
c8d86be3 GKH |
329 | skb = dev_alloc_skb(sizeof(struct ieee80211_probe_request) + |
330 | 2 + len + rate_len); | |
c8d86be3 GKH |
331 | if (!skb) |
332 | return NULL; | |
333 | ||
334 | req = (struct ieee80211_probe_request *) skb_put(skb,sizeof(struct ieee80211_probe_request)); | |
335 | req->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
336 | req->header.duration_id = 0; //FIXME: is this OK ? | |
337 | ||
338 | memset(req->header.addr1, 0xff, ETH_ALEN); | |
339 | memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN); | |
340 | memset(req->header.addr3, 0xff, ETH_ALEN); | |
341 | ||
342 | tag = (u8 *) skb_put(skb,len+2+rate_len); | |
343 | ||
344 | *tag++ = MFIE_TYPE_SSID; | |
345 | *tag++ = len; | |
346 | memcpy(tag, ieee->current_network.ssid, len); | |
347 | tag += len; | |
348 | ieee80211_MFIE_Brate(ieee,&tag); | |
349 | ieee80211_MFIE_Grate(ieee,&tag); | |
350 | ||
c8d86be3 GKH |
351 | return skb; |
352 | } | |
353 | ||
354 | struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee); | |
355 | ||
c8d86be3 GKH |
356 | void ext_ieee80211_send_beacon_wq(struct ieee80211_device *ieee) |
357 | { | |
c8d86be3 GKH |
358 | struct sk_buff *skb; |
359 | ||
360 | //unsigned long flags; | |
361 | ||
362 | skb = ieee80211_get_beacon_(ieee); | |
363 | ||
364 | if (skb){ | |
365 | softmac_mgmt_xmit(skb, ieee); | |
366 | ieee->softmac_stats.tx_beacons++; | |
367 | dev_kfree_skb_any(skb);//edit by thomas | |
368 | } | |
369 | ||
370 | ||
371 | //printk(KERN_WARNING "[1] beacon sending!\n"); | |
372 | ieee->beacon_timer.expires = jiffies + | |
373 | (MSECS( ieee->current_network.beacon_interval -5)); | |
374 | ||
375 | //spin_lock_irqsave(&ieee->beacon_lock,flags); | |
376 | if(ieee->beacon_txing) | |
377 | add_timer(&ieee->beacon_timer); | |
378 | //spin_unlock_irqrestore(&ieee->beacon_lock,flags); | |
379 | } | |
380 | ||
381 | void ieee80211_send_beacon(struct ieee80211_device *ieee) | |
382 | { | |
383 | struct sk_buff *skb; | |
384 | ||
385 | //unsigned long flags; | |
386 | ||
387 | skb = ieee80211_get_beacon_(ieee); | |
388 | ||
389 | if (skb){ | |
390 | softmac_mgmt_xmit(skb, ieee); | |
391 | ieee->softmac_stats.tx_beacons++; | |
392 | dev_kfree_skb_any(skb);//edit by thomas | |
393 | } | |
394 | ||
395 | //printk(KERN_WARNING "[1] beacon sending!\n"); | |
396 | ieee->beacon_timer.expires = jiffies + | |
397 | (MSECS( ieee->current_network.beacon_interval -5)); | |
398 | ||
399 | //spin_lock_irqsave(&ieee->beacon_lock,flags); | |
400 | if(ieee->beacon_txing) | |
401 | add_timer(&ieee->beacon_timer); | |
402 | //spin_unlock_irqrestore(&ieee->beacon_lock,flags); | |
403 | } | |
404 | ||
405 | ||
406 | void ieee80211_send_beacon_cb(unsigned long _ieee) | |
407 | { | |
408 | struct ieee80211_device *ieee = | |
409 | (struct ieee80211_device *) _ieee; | |
410 | unsigned long flags; | |
411 | ||
412 | spin_lock_irqsave(&ieee->beacon_lock, flags); | |
413 | ieee80211_send_beacon(ieee); | |
414 | spin_unlock_irqrestore(&ieee->beacon_lock, flags); | |
415 | } | |
416 | ||
c8d86be3 GKH |
417 | void ieee80211_send_probe(struct ieee80211_device *ieee) |
418 | { | |
419 | struct sk_buff *skb; | |
420 | ||
c8d86be3 GKH |
421 | skb = ieee80211_probe_req(ieee); |
422 | if (skb){ | |
423 | softmac_mgmt_xmit(skb, ieee); | |
424 | ieee->softmac_stats.tx_probe_rq++; | |
425 | //dev_kfree_skb_any(skb);//edit by thomas | |
426 | } | |
427 | } | |
428 | ||
429 | void ieee80211_send_probe_requests(struct ieee80211_device *ieee) | |
430 | { | |
431 | if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)){ | |
432 | ieee80211_send_probe(ieee); | |
433 | ieee80211_send_probe(ieee); | |
434 | } | |
435 | } | |
436 | ||
437 | /* this performs syncro scan blocking the caller until all channels | |
438 | * in the allowed channel map has been checked. | |
439 | */ | |
440 | void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee) | |
441 | { | |
442 | short ch = 0; | |
c8d86be3 GKH |
443 | u8 channel_map[MAX_CHANNEL_NUMBER+1]; |
444 | memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1); | |
c8d86be3 GKH |
445 | down(&ieee->scan_sem); |
446 | // printk("==================> Sync scan\n"); | |
c8d86be3 GKH |
447 | |
448 | while(1) | |
449 | { | |
450 | ||
451 | do{ | |
452 | ch++; | |
453 | if (ch > MAX_CHANNEL_NUMBER) | |
454 | goto out; /* scan completed */ | |
455 | ||
c8d86be3 | 456 | }while(!channel_map[ch]); |
39831861 | 457 | /* this function can be called in two situations |
c8d86be3 GKH |
458 | * 1- We have switched to ad-hoc mode and we are |
459 | * performing a complete syncro scan before conclude | |
460 | * there are no interesting cell and to create a | |
461 | * new one. In this case the link state is | |
462 | * IEEE80211_NOLINK until we found an interesting cell. | |
463 | * If so the ieee8021_new_net, called by the RX path | |
464 | * will set the state to IEEE80211_LINKED, so we stop | |
465 | * scanning | |
466 | * 2- We are linked and the root uses run iwlist scan. | |
467 | * So we switch to IEEE80211_LINKED_SCANNING to remember | |
468 | * that we are still logically linked (not interested in | |
469 | * new network events, despite for updating the net list, | |
470 | * but we are temporarly 'unlinked' as the driver shall | |
471 | * not filter RX frames and the channel is changing. | |
472 | * So the only situation in witch are interested is to check | |
473 | * if the state become LINKED because of the #1 situation | |
474 | */ | |
475 | ||
476 | if (ieee->state == IEEE80211_LINKED) | |
477 | goto out; | |
478 | ||
479 | ieee->set_chan(ieee->dev, ch); | |
480 | // printk("=====>channel=%d ",ch); | |
c8d86be3 | 481 | if(channel_map[ch] == 1) |
c8d86be3 GKH |
482 | { |
483 | // printk("====send probe request\n"); | |
484 | ieee80211_send_probe_requests(ieee); | |
485 | } | |
486 | /* this prevent excessive time wait when we | |
487 | * need to wait for a syncro scan to end.. | |
488 | */ | |
489 | if (ieee->sync_scan_hurryup) | |
490 | goto out; | |
491 | ||
492 | ||
493 | msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME); | |
494 | ||
495 | } | |
496 | out: | |
497 | ieee->sync_scan_hurryup = 0; | |
498 | up(&ieee->scan_sem); | |
c8d86be3 GKH |
499 | if(IS_DOT11D_ENABLE(ieee)) |
500 | DOT11D_ScanComplete(ieee); | |
c8d86be3 GKH |
501 | } |
502 | ||
503 | void ieee80211_softmac_ips_scan_syncro(struct ieee80211_device *ieee) | |
504 | { | |
505 | int ch; | |
506 | unsigned int watch_dog = 0; | |
c8d86be3 GKH |
507 | u8 channel_map[MAX_CHANNEL_NUMBER+1]; |
508 | memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1); | |
c8d86be3 GKH |
509 | down(&ieee->scan_sem); |
510 | ch = ieee->current_network.channel; | |
511 | // if(ieee->sync_scan_hurryup) | |
512 | // { | |
513 | ||
514 | // printk("stop scan sync\n"); | |
515 | // goto out; | |
516 | // } | |
517 | // printk("=======hh===============>ips scan\n"); | |
518 | while(1) | |
519 | { | |
39831861 | 520 | /* this function can be called in two situations |
c8d86be3 GKH |
521 | * 1- We have switched to ad-hoc mode and we are |
522 | * performing a complete syncro scan before conclude | |
523 | * there are no interesting cell and to create a | |
524 | * new one. In this case the link state is | |
525 | * IEEE80211_NOLINK until we found an interesting cell. | |
526 | * If so the ieee8021_new_net, called by the RX path | |
527 | * will set the state to IEEE80211_LINKED, so we stop | |
528 | * scanning | |
529 | * 2- We are linked and the root uses run iwlist scan. | |
530 | * So we switch to IEEE80211_LINKED_SCANNING to remember | |
531 | * that we are still logically linked (not interested in | |
532 | * new network events, despite for updating the net list, | |
533 | * but we are temporarly 'unlinked' as the driver shall | |
534 | * not filter RX frames and the channel is changing. | |
535 | * So the only situation in witch are interested is to check | |
536 | * if the state become LINKED because of the #1 situation | |
537 | */ | |
538 | if (ieee->state == IEEE80211_LINKED) | |
539 | { | |
540 | goto out; | |
541 | } | |
c8d86be3 | 542 | if(channel_map[ieee->current_network.channel] > 0) |
c8d86be3 GKH |
543 | { |
544 | ieee->set_chan(ieee->dev, ieee->current_network.channel); | |
545 | // printk("======>channel=%d ",ieee->current_network.channel); | |
546 | } | |
c8d86be3 | 547 | if(channel_map[ieee->current_network.channel] == 1) |
c8d86be3 GKH |
548 | { |
549 | // printk("====send probe request\n"); | |
550 | ieee80211_send_probe_requests(ieee); | |
551 | } | |
552 | /* this prevent excessive time wait when we | |
553 | * need to wait for a syncro scan to end.. | |
554 | */ | |
555 | // if (ieee->sync_scan_hurryup) | |
556 | // goto out; | |
557 | ||
558 | msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME); | |
559 | ||
560 | do{ | |
561 | if (watch_dog++ >= MAX_CHANNEL_NUMBER) | |
562 | // if (++watch_dog >= 15);//MAX_CHANNEL_NUMBER) //YJ,modified,080630 | |
563 | goto out; /* scan completed */ | |
564 | ||
565 | ieee->current_network.channel = (ieee->current_network.channel + 1)%MAX_CHANNEL_NUMBER; | |
c8d86be3 | 566 | }while(!channel_map[ieee->current_network.channel]); |
c8d86be3 GKH |
567 | } |
568 | out: | |
569 | //ieee->sync_scan_hurryup = 0; | |
570 | //ieee->set_chan(ieee->dev, ch); | |
571 | //ieee->current_network.channel = ch; | |
572 | ieee->actscanning = false; | |
573 | up(&ieee->scan_sem); | |
c8d86be3 GKH |
574 | if(IS_DOT11D_ENABLE(ieee)) |
575 | DOT11D_ScanComplete(ieee); | |
c8d86be3 GKH |
576 | } |
577 | ||
c8d86be3 GKH |
578 | void ieee80211_softmac_scan_wq(struct work_struct *work) |
579 | { | |
bf6aede7 | 580 | struct delayed_work *dwork = to_delayed_work(work); |
c8d86be3 | 581 | struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq); |
c8d86be3 | 582 | static short watchdog = 0; |
c8d86be3 GKH |
583 | u8 channel_map[MAX_CHANNEL_NUMBER+1]; |
584 | memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1); | |
c8d86be3 | 585 | // printk("ieee80211_softmac_scan_wq ENABLE_IPS\n"); |
d599edca | 586 | // printk("in %s\n",__func__); |
c8d86be3 GKH |
587 | down(&ieee->scan_sem); |
588 | ||
589 | do{ | |
590 | ieee->current_network.channel = | |
591 | (ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER; | |
592 | if (watchdog++ > MAX_CHANNEL_NUMBER) | |
593 | goto out; /* no good chans */ | |
594 | ||
c8d86be3 | 595 | }while(!channel_map[ieee->current_network.channel]); |
c8d86be3 GKH |
596 | |
597 | //printk("current_network.channel:%d\n", ieee->current_network.channel); | |
598 | if (ieee->scanning == 0 ) | |
599 | { | |
600 | printk("error out, scanning = 0\n"); | |
601 | goto out; | |
602 | } | |
603 | ieee->set_chan(ieee->dev, ieee->current_network.channel); | |
c8d86be3 | 604 | if(channel_map[ieee->current_network.channel] == 1) |
c8d86be3 GKH |
605 | ieee80211_send_probe_requests(ieee); |
606 | ||
607 | queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME); | |
608 | up(&ieee->scan_sem); | |
609 | return; | |
610 | out: | |
611 | ieee->actscanning = false; | |
612 | watchdog = 0; | |
613 | ieee->scanning = 0; | |
614 | up(&ieee->scan_sem); | |
615 | ||
c8d86be3 GKH |
616 | if(IS_DOT11D_ENABLE(ieee)) |
617 | DOT11D_ScanComplete(ieee); | |
c8d86be3 GKH |
618 | return; |
619 | } | |
c8d86be3 GKH |
620 | |
621 | void ieee80211_beacons_start(struct ieee80211_device *ieee) | |
622 | { | |
623 | unsigned long flags; | |
624 | ||
625 | spin_lock_irqsave(&ieee->beacon_lock,flags); | |
626 | ||
627 | ieee->beacon_txing = 1; | |
628 | ieee80211_send_beacon(ieee); | |
629 | ||
630 | spin_unlock_irqrestore(&ieee->beacon_lock,flags); | |
631 | } | |
632 | ||
633 | void ieee80211_beacons_stop(struct ieee80211_device *ieee) | |
634 | { | |
635 | unsigned long flags; | |
636 | ||
637 | spin_lock_irqsave(&ieee->beacon_lock,flags); | |
638 | ||
639 | ieee->beacon_txing = 0; | |
640 | del_timer_sync(&ieee->beacon_timer); | |
641 | ||
642 | spin_unlock_irqrestore(&ieee->beacon_lock,flags); | |
643 | ||
644 | } | |
645 | ||
646 | ||
647 | void ieee80211_stop_send_beacons(struct ieee80211_device *ieee) | |
648 | { | |
649 | if(ieee->stop_send_beacons) | |
650 | ieee->stop_send_beacons(ieee->dev); | |
651 | if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS) | |
652 | ieee80211_beacons_stop(ieee); | |
653 | } | |
654 | ||
655 | ||
656 | void ieee80211_start_send_beacons(struct ieee80211_device *ieee) | |
657 | { | |
658 | if(ieee->start_send_beacons) | |
659 | ieee->start_send_beacons(ieee->dev); | |
660 | if(ieee->softmac_features & IEEE_SOFTMAC_BEACONS) | |
661 | ieee80211_beacons_start(ieee); | |
662 | } | |
663 | ||
664 | ||
665 | void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee) | |
666 | { | |
667 | // unsigned long flags; | |
668 | ||
669 | //ieee->sync_scan_hurryup = 1; | |
670 | ||
671 | down(&ieee->scan_sem); | |
672 | // spin_lock_irqsave(&ieee->lock, flags); | |
673 | ||
674 | if (ieee->scanning == 1){ | |
675 | ieee->scanning = 0; | |
676 | //del_timer_sync(&ieee->scan_timer); | |
677 | cancel_delayed_work(&ieee->softmac_scan_wq); | |
678 | } | |
679 | ||
680 | // spin_unlock_irqrestore(&ieee->lock, flags); | |
681 | up(&ieee->scan_sem); | |
682 | } | |
683 | ||
684 | void ieee80211_stop_scan(struct ieee80211_device *ieee) | |
685 | { | |
686 | if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) | |
687 | ieee80211_softmac_stop_scan(ieee); | |
688 | else | |
689 | ieee->stop_scan(ieee->dev); | |
690 | } | |
691 | ||
692 | /* called with ieee->lock held */ | |
df574b8e | 693 | void ieee80211_rtl_start_scan(struct ieee80211_device *ieee) |
c8d86be3 | 694 | { |
c8d86be3 GKH |
695 | if(IS_DOT11D_ENABLE(ieee) ) |
696 | { | |
697 | if(IS_COUNTRY_IE_VALID(ieee)) | |
698 | { | |
699 | RESET_CIE_WATCHDOG(ieee); | |
700 | } | |
701 | } | |
c8d86be3 GKH |
702 | if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){ |
703 | if (ieee->scanning == 0) | |
704 | { | |
705 | ieee->scanning = 1; | |
706 | //ieee80211_softmac_scan(ieee); | |
707 | // queue_work(ieee->wq, &ieee->softmac_scan_wq); | |
708 | //care this,1203,2007,by lawrence | |
709 | #if 1 | |
710 | queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq,0); | |
711 | #endif | |
712 | } | |
713 | }else | |
714 | ieee->start_scan(ieee->dev); | |
715 | ||
716 | } | |
717 | ||
718 | /* called with wx_sem held */ | |
719 | void ieee80211_start_scan_syncro(struct ieee80211_device *ieee) | |
720 | { | |
c8d86be3 GKH |
721 | if(IS_DOT11D_ENABLE(ieee) ) |
722 | { | |
723 | if(IS_COUNTRY_IE_VALID(ieee)) | |
724 | { | |
725 | RESET_CIE_WATCHDOG(ieee); | |
726 | } | |
727 | } | |
c8d86be3 GKH |
728 | ieee->sync_scan_hurryup = 0; |
729 | ||
730 | if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) | |
731 | ieee80211_softmac_scan_syncro(ieee); | |
732 | else | |
733 | ieee->scan_syncro(ieee->dev); | |
734 | ||
735 | } | |
736 | ||
737 | inline struct sk_buff *ieee80211_authentication_req(struct ieee80211_network *beacon, | |
738 | struct ieee80211_device *ieee, int challengelen) | |
739 | { | |
740 | struct sk_buff *skb; | |
741 | struct ieee80211_authentication *auth; | |
742 | ||
743 | skb = dev_alloc_skb(sizeof(struct ieee80211_authentication) + challengelen); | |
744 | ||
745 | if (!skb) return NULL; | |
746 | ||
747 | auth = (struct ieee80211_authentication *) | |
748 | skb_put(skb, sizeof(struct ieee80211_authentication)); | |
749 | ||
750 | auth->header.frame_ctl = IEEE80211_STYPE_AUTH; | |
751 | if (challengelen) auth->header.frame_ctl |= IEEE80211_FCTL_WEP; | |
752 | ||
753 | auth->header.duration_id = 0x013a; //FIXME | |
754 | ||
755 | memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN); | |
756 | memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN); | |
757 | memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN); | |
758 | ||
759 | auth->algorithm = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY; | |
760 | ||
761 | auth->transaction = cpu_to_le16(ieee->associate_seq); | |
762 | ieee->associate_seq++; | |
763 | ||
764 | auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS); | |
765 | ||
766 | return skb; | |
767 | ||
768 | } | |
769 | ||
770 | static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *dest) | |
771 | { | |
772 | u8 *tag; | |
773 | int beacon_size; | |
774 | struct ieee80211_probe_response *beacon_buf; | |
775 | struct sk_buff *skb; | |
776 | int encrypt; | |
777 | int atim_len,erp_len; | |
778 | struct ieee80211_crypt_data* crypt; | |
779 | ||
780 | char *ssid = ieee->current_network.ssid; | |
781 | int ssid_len = ieee->current_network.ssid_len; | |
782 | int rate_len = ieee->current_network.rates_len+2; | |
783 | int rate_ex_len = ieee->current_network.rates_ex_len; | |
784 | int wpa_ie_len = ieee->wpa_ie_len; | |
785 | if(rate_ex_len > 0) rate_ex_len+=2; | |
786 | ||
787 | if(ieee->current_network.capability & WLAN_CAPABILITY_IBSS) | |
788 | atim_len = 4; | |
789 | else | |
790 | atim_len = 0; | |
791 | ||
792 | if(ieee80211_is_54g(ieee->current_network)) | |
793 | erp_len = 3; | |
794 | else | |
795 | erp_len = 0; | |
796 | ||
797 | beacon_size = sizeof(struct ieee80211_probe_response)+ | |
798 | ssid_len | |
799 | +3 //channel | |
800 | +rate_len | |
801 | +rate_ex_len | |
802 | +atim_len | |
803 | +wpa_ie_len | |
804 | +erp_len; | |
805 | ||
806 | skb = dev_alloc_skb(beacon_size); | |
807 | ||
808 | if (!skb) | |
809 | return NULL; | |
810 | ||
811 | beacon_buf = (struct ieee80211_probe_response*) skb_put(skb, beacon_size); | |
812 | ||
813 | memcpy (beacon_buf->header.addr1, dest,ETH_ALEN); | |
814 | memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN); | |
815 | memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN); | |
816 | ||
817 | beacon_buf->header.duration_id = 0; //FIXME | |
818 | beacon_buf->beacon_interval = | |
819 | cpu_to_le16(ieee->current_network.beacon_interval); | |
820 | beacon_buf->capability = | |
821 | cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_IBSS); | |
822 | ||
823 | if(ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT)) | |
824 | cpu_to_le16((beacon_buf->capability |= WLAN_CAPABILITY_SHORT_SLOT)); | |
825 | ||
826 | crypt = ieee->crypt[ieee->tx_keyidx]; | |
827 | ||
828 | encrypt = ieee->host_encrypt && crypt && crypt->ops && | |
829 | ((0 == strcmp(crypt->ops->name, "WEP")) || wpa_ie_len); | |
830 | ||
831 | if (encrypt) | |
832 | beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); | |
833 | ||
834 | ||
835 | beacon_buf->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_RESP); | |
836 | ||
837 | beacon_buf->info_element.id = MFIE_TYPE_SSID; | |
838 | beacon_buf->info_element.len = ssid_len; | |
839 | ||
840 | tag = (u8*) beacon_buf->info_element.data; | |
841 | ||
842 | memcpy(tag, ssid, ssid_len); | |
843 | ||
844 | tag += ssid_len; | |
845 | ||
846 | *(tag++) = MFIE_TYPE_RATES; | |
847 | *(tag++) = rate_len-2; | |
848 | memcpy(tag,ieee->current_network.rates,rate_len-2); | |
849 | tag+=rate_len-2; | |
850 | ||
851 | *(tag++) = MFIE_TYPE_DS_SET; | |
852 | *(tag++) = 1; | |
853 | *(tag++) = ieee->current_network.channel; | |
854 | ||
855 | if(atim_len){ | |
856 | *(tag++) = MFIE_TYPE_IBSS_SET; | |
857 | *(tag++) = 2; | |
858 | *((u16*)(tag)) = cpu_to_le16(ieee->current_network.atim_window); | |
859 | tag+=2; | |
860 | } | |
861 | ||
862 | if(erp_len){ | |
863 | *(tag++) = MFIE_TYPE_ERP; | |
864 | *(tag++) = 1; | |
865 | *(tag++) = 0; | |
866 | } | |
867 | ||
868 | if(rate_ex_len){ | |
869 | *(tag++) = MFIE_TYPE_RATES_EX; | |
870 | *(tag++) = rate_ex_len-2; | |
871 | memcpy(tag,ieee->current_network.rates_ex,rate_ex_len-2); | |
872 | tag+=rate_ex_len-2; | |
873 | } | |
874 | ||
875 | if (wpa_ie_len) | |
876 | { | |
877 | if (ieee->iw_mode == IW_MODE_ADHOC) | |
878 | {//as Windows will set pairwise key same as the group key which is not allowed in Linux, so set this for IOT issue. WB 2008.07.07 | |
879 | memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4); | |
880 | } | |
881 | ||
882 | memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len); | |
883 | } | |
884 | ||
885 | skb->dev = ieee->dev; | |
886 | return skb; | |
887 | } | |
c8d86be3 GKH |
888 | |
889 | struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest) | |
890 | { | |
891 | struct sk_buff *skb; | |
892 | u8* tag; | |
893 | ||
894 | struct ieee80211_crypt_data* crypt; | |
895 | struct ieee80211_assoc_response_frame *assoc; | |
896 | short encrypt; | |
897 | ||
898 | unsigned int rate_len = ieee80211_MFIE_rate_len(ieee); | |
899 | int len = sizeof(struct ieee80211_assoc_response_frame) + rate_len; | |
900 | ||
901 | skb = dev_alloc_skb(len); | |
902 | ||
903 | if (!skb) | |
904 | return NULL; | |
905 | ||
906 | assoc = (struct ieee80211_assoc_response_frame *) | |
907 | skb_put(skb,sizeof(struct ieee80211_assoc_response_frame)); | |
908 | ||
b6b1ac69 | 909 | assoc->header.frame_control = cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP); |
c8d86be3 GKH |
910 | memcpy(assoc->header.addr1, dest,ETH_ALEN); |
911 | memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN); | |
912 | memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN); | |
913 | assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ? | |
914 | WLAN_CAPABILITY_BSS : WLAN_CAPABILITY_IBSS); | |
915 | ||
916 | ||
917 | if(ieee->short_slot) | |
918 | assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT); | |
919 | ||
920 | if (ieee->host_encrypt) | |
921 | crypt = ieee->crypt[ieee->tx_keyidx]; | |
922 | else crypt = NULL; | |
923 | ||
924 | encrypt = ( crypt && crypt->ops); | |
925 | ||
926 | if (encrypt) | |
927 | assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); | |
928 | ||
929 | assoc->status = 0; | |
930 | assoc->aid = cpu_to_le16(ieee->assoc_id); | |
931 | if (ieee->assoc_id == 0x2007) ieee->assoc_id=0; | |
932 | else ieee->assoc_id++; | |
933 | ||
934 | tag = (u8*) skb_put(skb, rate_len); | |
935 | ||
936 | ieee80211_MFIE_Brate(ieee, &tag); | |
937 | ieee80211_MFIE_Grate(ieee, &tag); | |
938 | ||
939 | return skb; | |
940 | } | |
941 | ||
942 | struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,int status, u8 *dest) | |
943 | { | |
944 | struct sk_buff *skb; | |
945 | struct ieee80211_authentication *auth; | |
946 | ||
947 | skb = dev_alloc_skb(sizeof(struct ieee80211_authentication)+1); | |
948 | ||
949 | if (!skb) | |
950 | return NULL; | |
951 | ||
952 | skb->len = sizeof(struct ieee80211_authentication); | |
953 | ||
954 | auth = (struct ieee80211_authentication *)skb->data; | |
955 | ||
956 | auth->status = cpu_to_le16(status); | |
957 | auth->transaction = cpu_to_le16(2); | |
958 | auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN); | |
959 | ||
c8d86be3 | 960 | memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN); |
c8d86be3 GKH |
961 | memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN); |
962 | memcpy(auth->header.addr1, dest, ETH_ALEN); | |
963 | auth->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_AUTH); | |
964 | return skb; | |
965 | ||
966 | ||
967 | } | |
968 | ||
969 | struct sk_buff* ieee80211_null_func(struct ieee80211_device *ieee,short pwr) | |
970 | { | |
971 | struct sk_buff *skb; | |
972 | struct ieee80211_hdr_3addr* hdr; | |
973 | ||
974 | skb = dev_alloc_skb(sizeof(struct ieee80211_hdr_3addr)); | |
975 | ||
976 | if (!skb) | |
977 | return NULL; | |
978 | ||
979 | hdr = (struct ieee80211_hdr_3addr*)skb_put(skb,sizeof(struct ieee80211_hdr_3addr)); | |
980 | ||
981 | memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN); | |
982 | memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN); | |
983 | memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN); | |
984 | ||
b6b1ac69 | 985 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | |
c8d86be3 GKH |
986 | IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS | |
987 | (pwr ? IEEE80211_FCTL_PM:0)); | |
988 | ||
989 | return skb; | |
990 | ||
991 | ||
992 | } | |
993 | ||
994 | ||
995 | void ieee80211_resp_to_assoc_rq(struct ieee80211_device *ieee, u8* dest) | |
996 | { | |
997 | struct sk_buff *buf = ieee80211_assoc_resp(ieee, dest); | |
998 | ||
999 | if (buf){ | |
1000 | softmac_mgmt_xmit(buf, ieee); | |
1001 | dev_kfree_skb_any(buf);//edit by thomas | |
1002 | } | |
1003 | } | |
1004 | ||
1005 | ||
1006 | void ieee80211_resp_to_auth(struct ieee80211_device *ieee, int s, u8* dest) | |
1007 | { | |
1008 | struct sk_buff *buf = ieee80211_auth_resp(ieee, s, dest); | |
1009 | ||
1010 | if (buf){ | |
1011 | softmac_mgmt_xmit(buf, ieee); | |
1012 | dev_kfree_skb_any(buf);//edit by thomas | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | ||
1017 | void ieee80211_resp_to_probe(struct ieee80211_device *ieee, u8 *dest) | |
1018 | { | |
1019 | ||
1020 | struct sk_buff *buf = ieee80211_probe_resp(ieee, dest); | |
1021 | ||
1022 | if (buf) { | |
1023 | softmac_mgmt_xmit(buf, ieee); | |
1024 | dev_kfree_skb_any(buf);//edit by thomas | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | ||
1029 | inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beacon,struct ieee80211_device *ieee) | |
1030 | { | |
1031 | struct sk_buff *skb; | |
1032 | //unsigned long flags; | |
1033 | ||
1034 | struct ieee80211_assoc_request_frame *hdr; | |
1035 | u8 *tag; | |
1036 | //short info_addr = 0; | |
1037 | //int i; | |
1038 | //u16 suite_count = 0; | |
1039 | //u8 suit_select = 0; | |
1040 | unsigned int wpa_len = beacon->wpa_ie_len; | |
1041 | //struct net_device *dev = ieee->dev; | |
1042 | //union iwreq_data wrqu; | |
1043 | //u8 *buff; | |
1044 | //u8 *p; | |
1045 | #if 1 | |
1046 | // for testing purpose | |
1047 | unsigned int rsn_len = beacon->rsn_ie_len; | |
1048 | #else | |
1049 | unsigned int rsn_len = beacon->rsn_ie_len - 4; | |
1050 | #endif | |
1051 | unsigned int rate_len = ieee80211_MFIE_rate_len(ieee); | |
1052 | unsigned int wmm_info_len = beacon->QoS_Enable?9:0; | |
c8d86be3 | 1053 | unsigned int turbo_info_len = beacon->Turbo_Enable?9:0; |
c8d86be3 GKH |
1054 | |
1055 | u8 encry_proto = ieee->wpax_type_notify & 0xff; | |
1056 | //u8 pairwise_type = (ieee->wpax_type_notify >> 8) & 0xff; | |
1057 | //u8 authen_type = (ieee->wpax_type_notify >> 16) & 0xff; | |
1058 | ||
1059 | int len = 0; | |
1060 | ||
1061 | //[0] Notify type of encryption: WPA/WPA2 | |
1062 | //[1] pair wise type | |
1063 | //[2] authen type | |
1064 | if(ieee->wpax_type_set) { | |
1065 | if (IEEE_PROTO_WPA == encry_proto) { | |
1066 | rsn_len = 0; | |
1067 | } else if (IEEE_PROTO_RSN == encry_proto) { | |
1068 | wpa_len = 0; | |
1069 | } | |
1070 | } | |
c8d86be3 GKH |
1071 | len = sizeof(struct ieee80211_assoc_request_frame)+ |
1072 | + beacon->ssid_len//essid tagged val | |
1073 | + rate_len//rates tagged val | |
1074 | + wpa_len | |
1075 | + rsn_len | |
1076 | + wmm_info_len | |
1077 | + turbo_info_len; | |
c8d86be3 | 1078 | |
c8d86be3 GKH |
1079 | skb = dev_alloc_skb(len); |
1080 | ||
1081 | if (!skb) | |
1082 | return NULL; | |
1083 | ||
1084 | hdr = (struct ieee80211_assoc_request_frame *) | |
1085 | skb_put(skb, sizeof(struct ieee80211_assoc_request_frame)); | |
1086 | ||
1087 | ||
b6b1ac69 | 1088 | hdr->header.frame_control = IEEE80211_STYPE_ASSOC_REQ; |
c8d86be3 GKH |
1089 | hdr->header.duration_id= 37; //FIXME |
1090 | memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN); | |
1091 | memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN); | |
1092 | memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN); | |
1093 | memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);//for HW security, John | |
1094 | ||
1095 | hdr->capability = cpu_to_le16(WLAN_CAPABILITY_BSS); | |
1096 | if (beacon->capability & WLAN_CAPABILITY_PRIVACY ) | |
1097 | hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); | |
1098 | if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1099 | hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); | |
1100 | ||
1101 | if(ieee->short_slot) | |
1102 | hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT); | |
1103 | ||
c8d86be3 GKH |
1104 | hdr->listen_interval = 0xa; //FIXME |
1105 | ||
1106 | hdr->info_element.id = MFIE_TYPE_SSID; | |
1107 | ||
1108 | hdr->info_element.len = beacon->ssid_len; | |
1109 | tag = skb_put(skb, beacon->ssid_len); | |
1110 | memcpy(tag, beacon->ssid, beacon->ssid_len); | |
1111 | ||
1112 | tag = skb_put(skb, rate_len); | |
1113 | ||
1114 | ieee80211_MFIE_Brate(ieee, &tag); | |
1115 | ieee80211_MFIE_Grate(ieee, &tag); | |
1116 | ||
1117 | //add rsn==0 condition for ap's mix security mode(wpa+wpa2), john2007.8.9 | |
1118 | //choose AES encryption as default algorithm while using mixed mode | |
c8d86be3 | 1119 | |
c8d86be3 GKH |
1120 | tag = skb_put(skb,ieee->wpa_ie_len); |
1121 | memcpy(tag,ieee->wpa_ie,ieee->wpa_ie_len); | |
5521a513 | 1122 | |
c8d86be3 GKH |
1123 | tag = skb_put(skb,wmm_info_len); |
1124 | if(wmm_info_len) { | |
1125 | ieee80211_WMM_Info(ieee, &tag); | |
1126 | } | |
c8d86be3 GKH |
1127 | tag = skb_put(skb,turbo_info_len); |
1128 | if(turbo_info_len) { | |
1129 | ieee80211_TURBO_Info(ieee, &tag); | |
1130 | } | |
c8d86be3 | 1131 | |
c8d86be3 GKH |
1132 | return skb; |
1133 | } | |
1134 | ||
1135 | void ieee80211_associate_abort(struct ieee80211_device *ieee) | |
1136 | { | |
1137 | ||
1138 | unsigned long flags; | |
1139 | spin_lock_irqsave(&ieee->lock, flags); | |
1140 | ||
1141 | ieee->associate_seq++; | |
1142 | ||
1143 | /* don't scan, and avoid to have the RX path possibily | |
1144 | * try again to associate. Even do not react to AUTH or | |
1145 | * ASSOC response. Just wait for the retry wq to be scheduled. | |
1146 | * Here we will check if there are good nets to associate | |
1147 | * with, so we retry or just get back to NO_LINK and scanning | |
1148 | */ | |
1149 | if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING){ | |
1150 | IEEE80211_DEBUG_MGMT("Authentication failed\n"); | |
1151 | ieee->softmac_stats.no_auth_rs++; | |
1152 | }else{ | |
1153 | IEEE80211_DEBUG_MGMT("Association failed\n"); | |
1154 | ieee->softmac_stats.no_ass_rs++; | |
1155 | } | |
1156 | ||
1157 | ieee->state = IEEE80211_ASSOCIATING_RETRY; | |
1158 | ||
1159 | queue_delayed_work(ieee->wq, &ieee->associate_retry_wq,IEEE80211_SOFTMAC_ASSOC_RETRY_TIME); | |
1160 | ||
1161 | spin_unlock_irqrestore(&ieee->lock, flags); | |
1162 | } | |
1163 | ||
1164 | void ieee80211_associate_abort_cb(unsigned long dev) | |
1165 | { | |
1166 | ieee80211_associate_abort((struct ieee80211_device *) dev); | |
1167 | } | |
1168 | ||
1169 | ||
1170 | void ieee80211_associate_step1(struct ieee80211_device *ieee) | |
1171 | { | |
1172 | struct ieee80211_network *beacon = &ieee->current_network; | |
1173 | struct sk_buff *skb; | |
1174 | ||
1175 | IEEE80211_DEBUG_MGMT("Stopping scan\n"); | |
1176 | ieee->softmac_stats.tx_auth_rq++; | |
1177 | skb=ieee80211_authentication_req(beacon, ieee, 0); | |
c8d86be3 GKH |
1178 | if (!skb){ |
1179 | ||
1180 | ieee80211_associate_abort(ieee); | |
1181 | } | |
1182 | else{ | |
1183 | ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATING ; | |
1184 | IEEE80211_DEBUG_MGMT("Sending authentication request\n"); | |
1185 | //printk("---Sending authentication request\n"); | |
1186 | softmac_mgmt_xmit(skb, ieee); | |
1187 | //BUGON when you try to add_timer twice, using mod_timer may be better, john0709 | |
1188 | if(!timer_pending(&ieee->associate_timer)){ | |
1189 | ieee->associate_timer.expires = jiffies + (HZ / 2); | |
1190 | add_timer(&ieee->associate_timer); | |
1191 | } | |
1192 | //If call dev_kfree_skb_any,a warning will ocur.... | |
1193 | //KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1708) | |
1194 | //So ... 1204 by lawrence. | |
d599edca | 1195 | //printk("\nIn %s,line %d call kfree skb.",__func__,__LINE__); |
c8d86be3 GKH |
1196 | //dev_kfree_skb_any(skb);//edit by thomas |
1197 | } | |
1198 | } | |
1199 | ||
df574b8e | 1200 | void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen) |
c8d86be3 GKH |
1201 | { |
1202 | u8 *c; | |
1203 | struct sk_buff *skb; | |
1204 | struct ieee80211_network *beacon = &ieee->current_network; | |
1205 | // int hlen = sizeof(struct ieee80211_authentication); | |
1206 | del_timer_sync(&ieee->associate_timer); | |
1207 | ieee->associate_seq++; | |
1208 | ieee->softmac_stats.tx_auth_rq++; | |
1209 | ||
1210 | skb = ieee80211_authentication_req(beacon, ieee, chlen+2); | |
1211 | if (!skb) | |
1212 | ieee80211_associate_abort(ieee); | |
1213 | else{ | |
1214 | c = skb_put(skb, chlen+2); | |
1215 | *(c++) = MFIE_TYPE_CHALLENGE; | |
1216 | *(c++) = chlen; | |
1217 | memcpy(c, challenge, chlen); | |
1218 | ||
1219 | IEEE80211_DEBUG_MGMT("Sending authentication challenge response\n"); | |
1220 | ||
1221 | ieee80211_encrypt_fragment(ieee, skb, sizeof(struct ieee80211_hdr_3addr )); | |
1222 | ||
1223 | softmac_mgmt_xmit(skb, ieee); | |
1224 | if (!timer_pending(&ieee->associate_timer)){ | |
1225 | //printk("=========>add timer again, to crash\n"); | |
1226 | ieee->associate_timer.expires = jiffies + (HZ / 2); | |
1227 | add_timer(&ieee->associate_timer); | |
1228 | } | |
1229 | dev_kfree_skb_any(skb);//edit by thomas | |
1230 | } | |
1231 | kfree(challenge); | |
1232 | } | |
1233 | ||
c8d86be3 GKH |
1234 | void ieee80211_associate_step2(struct ieee80211_device *ieee) |
1235 | { | |
1236 | struct sk_buff* skb; | |
1237 | struct ieee80211_network *beacon = &ieee->current_network; | |
1238 | ||
1239 | del_timer_sync(&ieee->associate_timer); | |
1240 | ||
1241 | IEEE80211_DEBUG_MGMT("Sending association request\n"); | |
1242 | ieee->softmac_stats.tx_ass_rq++; | |
1243 | skb=ieee80211_association_req(beacon, ieee); | |
1244 | if (!skb) | |
1245 | ieee80211_associate_abort(ieee); | |
1246 | else{ | |
1247 | softmac_mgmt_xmit(skb, ieee); | |
1248 | if (!timer_pending(&ieee->associate_timer)){ | |
1249 | ieee->associate_timer.expires = jiffies + (HZ / 2); | |
1250 | add_timer(&ieee->associate_timer); | |
1251 | } | |
1252 | //dev_kfree_skb_any(skb);//edit by thomas | |
1253 | } | |
1254 | } | |
1255 | ||
c8d86be3 GKH |
1256 | void ieee80211_associate_complete_wq(struct work_struct *work) |
1257 | { | |
1258 | struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq); | |
0370453f | 1259 | |
c8d86be3 GKH |
1260 | printk(KERN_INFO "Associated successfully\n"); |
1261 | if(ieee80211_is_54g(ieee->current_network) && | |
1262 | (ieee->modulation & IEEE80211_OFDM_MODULATION)){ | |
1263 | ||
1264 | ieee->rate = 540; | |
1265 | printk(KERN_INFO"Using G rates\n"); | |
1266 | }else{ | |
1267 | ieee->rate = 110; | |
1268 | printk(KERN_INFO"Using B rates\n"); | |
1269 | } | |
1270 | ieee->link_change(ieee->dev); | |
1271 | notify_wx_assoc_event(ieee); | |
1272 | if (ieee->data_hard_resume) | |
1273 | ieee->data_hard_resume(ieee->dev); | |
1274 | netif_carrier_on(ieee->dev); | |
1275 | } | |
1276 | ||
1277 | void ieee80211_associate_complete(struct ieee80211_device *ieee) | |
1278 | { | |
1279 | int i; | |
1280 | del_timer_sync(&ieee->associate_timer); | |
1281 | ||
1282 | for(i = 0; i < 6; i++) { | |
1283 | //ieee->seq_ctrl[i] = 0; | |
1284 | } | |
1285 | ieee->state = IEEE80211_LINKED; | |
1286 | IEEE80211_DEBUG_MGMT("Successfully associated\n"); | |
1287 | ||
1288 | queue_work(ieee->wq, &ieee->associate_complete_wq); | |
1289 | } | |
1290 | ||
c8d86be3 GKH |
1291 | void ieee80211_associate_procedure_wq(struct work_struct *work) |
1292 | { | |
1293 | struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_procedure_wq); | |
0370453f | 1294 | |
c8d86be3 GKH |
1295 | ieee->sync_scan_hurryup = 1; |
1296 | down(&ieee->wx_sem); | |
1297 | ||
1298 | if (ieee->data_hard_stop) | |
1299 | ieee->data_hard_stop(ieee->dev); | |
1300 | ||
1301 | ieee80211_stop_scan(ieee); | |
1302 | ieee->set_chan(ieee->dev, ieee->current_network.channel); | |
1303 | ||
1304 | ieee->associate_seq = 1; | |
1305 | ieee80211_associate_step1(ieee); | |
1306 | ||
1307 | up(&ieee->wx_sem); | |
1308 | } | |
c8d86be3 GKH |
1309 | |
1310 | inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee80211_network *net) | |
1311 | { | |
1312 | u8 tmp_ssid[IW_ESSID_MAX_SIZE+1]; | |
1313 | int tmp_ssid_len = 0; | |
1314 | ||
1315 | short apset,ssidset,ssidbroad,apmatch,ssidmatch; | |
1316 | ||
1317 | /* we are interested in new new only if we are not associated | |
1318 | * and we are not associating / authenticating | |
1319 | */ | |
1320 | if (ieee->state != IEEE80211_NOLINK) | |
1321 | return; | |
1322 | ||
1323 | if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_BSS)) | |
1324 | return; | |
1325 | ||
1326 | if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS)) | |
1327 | return; | |
1328 | ||
1329 | ||
1330 | if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC){ | |
1331 | /* if the user specified the AP MAC, we need also the essid | |
1332 | * This could be obtained by beacons or, if the network does not | |
1333 | * broadcast it, it can be put manually. | |
1334 | */ | |
1335 | apset = ieee->wap_set;//(memcmp(ieee->current_network.bssid, zero,ETH_ALEN)!=0 ); | |
1336 | ssidset = ieee->ssid_set;//ieee->current_network.ssid[0] != '\0'; | |
1337 | ssidbroad = !(net->ssid_len == 0 || net->ssid[0]== '\0'); | |
1338 | apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0); | |
1339 | ||
1340 | if(ieee->current_network.ssid_len != net->ssid_len) | |
1341 | ssidmatch = 0; | |
1342 | else | |
1343 | ssidmatch = (0==strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len)); | |
1344 | ||
1345 | //printk("cur: %s, %d, net:%s, %d\n", ieee->current_network.ssid, ieee->current_network.ssid_len, net->ssid, net->ssid_len); | |
1346 | //printk("apset=%d apmatch=%d ssidset=%d ssidbroad=%d ssidmatch=%d\n",apset,apmatch,ssidset,ssidbroad,ssidmatch); | |
1347 | ||
1348 | if ( /* if the user set the AP check if match. | |
1349 | * if the network does not broadcast essid we check the user supplyed ANY essid | |
1350 | * if the network does broadcast and the user does not set essid it is OK | |
1351 | * if the network does broadcast and the user did set essid chech if essid match | |
1352 | */ | |
1353 | ( apset && apmatch && | |
1354 | ((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) ) || | |
1355 | /* if the ap is not set, check that the user set the bssid | |
1356 | * and the network does bradcast and that those two bssid matches | |
1357 | */ | |
1358 | (!apset && ssidset && ssidbroad && ssidmatch) | |
1359 | ){ | |
1360 | ||
1361 | ||
1362 | /* if the essid is hidden replace it with the | |
1363 | * essid provided by the user. | |
1364 | */ | |
1365 | if (!ssidbroad){ | |
1366 | strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE); | |
1367 | tmp_ssid_len = ieee->current_network.ssid_len; | |
1368 | } | |
1369 | memcpy(&ieee->current_network, net, sizeof(struct ieee80211_network)); | |
1370 | ||
1371 | if (!ssidbroad){ | |
1372 | strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE); | |
1373 | ieee->current_network.ssid_len = tmp_ssid_len; | |
1374 | } | |
1375 | printk(KERN_INFO"Linking with %s: channel is %d\n",ieee->current_network.ssid,ieee->current_network.channel); | |
1376 | ||
1377 | if (ieee->iw_mode == IW_MODE_INFRA){ | |
1378 | ieee->state = IEEE80211_ASSOCIATING; | |
1379 | ieee->beinretry = false; | |
1380 | queue_work(ieee->wq, &ieee->associate_procedure_wq); | |
1381 | }else{ | |
1382 | if(ieee80211_is_54g(ieee->current_network) && | |
1383 | (ieee->modulation & IEEE80211_OFDM_MODULATION)){ | |
1384 | ieee->rate = 540; | |
1385 | printk(KERN_INFO"Using G rates\n"); | |
1386 | }else{ | |
1387 | ieee->rate = 110; | |
1388 | printk(KERN_INFO"Using B rates\n"); | |
1389 | } | |
1390 | ieee->state = IEEE80211_LINKED; | |
1391 | ieee->beinretry = false; | |
1392 | } | |
1393 | ||
1394 | } | |
1395 | } | |
1396 | ||
1397 | } | |
1398 | ||
1399 | void ieee80211_softmac_check_all_nets(struct ieee80211_device *ieee) | |
1400 | { | |
1401 | unsigned long flags; | |
1402 | struct ieee80211_network *target; | |
1403 | ||
1404 | spin_lock_irqsave(&ieee->lock, flags); | |
1405 | list_for_each_entry(target, &ieee->network_list, list) { | |
1406 | ||
1407 | /* if the state become different that NOLINK means | |
1408 | * we had found what we are searching for | |
1409 | */ | |
1410 | ||
1411 | if (ieee->state != IEEE80211_NOLINK) | |
1412 | break; | |
1413 | ||
1414 | if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies)) | |
1415 | ieee80211_softmac_new_net(ieee, target); | |
1416 | } | |
1417 | ||
1418 | spin_unlock_irqrestore(&ieee->lock, flags); | |
1419 | ||
1420 | } | |
1421 | ||
1422 | ||
1423 | static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen) | |
1424 | { | |
1425 | struct ieee80211_authentication *a; | |
1426 | u8 *t; | |
1427 | if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){ | |
1428 | IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len); | |
1429 | return 0xcafe; | |
1430 | } | |
1431 | *challenge = NULL; | |
1432 | a = (struct ieee80211_authentication*) skb->data; | |
1433 | if(skb->len > (sizeof(struct ieee80211_authentication) +3)){ | |
1434 | t = skb->data + sizeof(struct ieee80211_authentication); | |
1435 | ||
1436 | if(*(t++) == MFIE_TYPE_CHALLENGE){ | |
1437 | *chlen = *(t++); | |
0875abf8 XW |
1438 | *challenge = kmemdup(t, *chlen, GFP_ATOMIC); |
1439 | if (!*challenge) | |
1440 | return -ENOMEM; | |
c8d86be3 GKH |
1441 | } |
1442 | } | |
1443 | ||
1444 | return cpu_to_le16(a->status); | |
1445 | ||
1446 | } | |
1447 | ||
1448 | ||
1449 | int auth_rq_parse(struct sk_buff *skb,u8* dest) | |
1450 | { | |
1451 | struct ieee80211_authentication *a; | |
1452 | ||
1453 | if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){ | |
1454 | IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len); | |
1455 | return -1; | |
1456 | } | |
1457 | a = (struct ieee80211_authentication*) skb->data; | |
1458 | ||
1459 | memcpy(dest,a->header.addr2, ETH_ALEN); | |
1460 | ||
1461 | if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN) | |
1462 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
1463 | ||
1464 | return WLAN_STATUS_SUCCESS; | |
1465 | } | |
1466 | ||
1467 | static short probe_rq_parse(struct ieee80211_device *ieee, struct sk_buff *skb, u8 *src) | |
1468 | { | |
1469 | u8 *tag; | |
1470 | u8 *skbend; | |
1471 | u8 *ssid=NULL; | |
1472 | u8 ssidlen = 0; | |
1473 | ||
1474 | struct ieee80211_hdr_3addr *header = | |
1475 | (struct ieee80211_hdr_3addr *) skb->data; | |
1476 | ||
1477 | if (skb->len < sizeof (struct ieee80211_hdr_3addr )) | |
1478 | return -1; /* corrupted */ | |
1479 | ||
1480 | memcpy(src,header->addr2, ETH_ALEN); | |
1481 | ||
1482 | skbend = (u8*)skb->data + skb->len; | |
1483 | ||
1484 | tag = skb->data + sizeof (struct ieee80211_hdr_3addr ); | |
1485 | ||
1486 | while (tag+1 < skbend){ | |
1487 | if (*tag == 0){ | |
1488 | ssid = tag+2; | |
1489 | ssidlen = *(tag+1); | |
1490 | break; | |
1491 | } | |
1492 | tag++; /* point to the len field */ | |
1493 | tag = tag + *(tag); /* point to the last data byte of the tag */ | |
1494 | tag++; /* point to the next tag */ | |
1495 | } | |
1496 | ||
1497 | //IEEE80211DMESG("Card MAC address is "MACSTR, MAC2STR(src)); | |
1498 | if (ssidlen == 0) return 1; | |
1499 | ||
1500 | if (!ssid) return 1; /* ssid not found in tagged param */ | |
1501 | return (!strncmp(ssid, ieee->current_network.ssid, ssidlen)); | |
1502 | ||
1503 | } | |
1504 | ||
1505 | int assoc_rq_parse(struct sk_buff *skb,u8* dest) | |
1506 | { | |
1507 | struct ieee80211_assoc_request_frame *a; | |
1508 | ||
1509 | if (skb->len < (sizeof(struct ieee80211_assoc_request_frame) - | |
1510 | sizeof(struct ieee80211_info_element))) { | |
1511 | ||
1512 | IEEE80211_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len); | |
1513 | return -1; | |
1514 | } | |
1515 | ||
1516 | a = (struct ieee80211_assoc_request_frame*) skb->data; | |
1517 | ||
1518 | memcpy(dest,a->header.addr2,ETH_ALEN); | |
1519 | ||
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | static inline u16 assoc_parse(struct sk_buff *skb, int *aid) | |
1524 | { | |
1525 | struct ieee80211_assoc_response_frame *a; | |
1526 | if (skb->len < sizeof(struct ieee80211_assoc_response_frame)){ | |
1527 | IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len); | |
1528 | return 0xcafe; | |
1529 | } | |
1530 | ||
1531 | a = (struct ieee80211_assoc_response_frame*) skb->data; | |
1532 | *aid = le16_to_cpu(a->aid) & 0x3fff; | |
1533 | return le16_to_cpu(a->status); | |
1534 | } | |
1535 | ||
1536 | static inline void | |
1537 | ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb) | |
1538 | { | |
1539 | u8 dest[ETH_ALEN]; | |
1540 | ||
1541 | //IEEE80211DMESG("Rx probe"); | |
1542 | ieee->softmac_stats.rx_probe_rq++; | |
1543 | //DMESG("Dest is "MACSTR, MAC2STR(dest)); | |
1544 | if (probe_rq_parse(ieee, skb, dest)){ | |
1545 | //IEEE80211DMESG("Was for me!"); | |
1546 | ieee->softmac_stats.tx_probe_rs++; | |
1547 | ieee80211_resp_to_probe(ieee, dest); | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | inline void | |
1552 | ieee80211_rx_auth_rq(struct ieee80211_device *ieee, struct sk_buff *skb) | |
1553 | { | |
1554 | u8 dest[ETH_ALEN]; | |
1555 | int status; | |
1556 | //IEEE80211DMESG("Rx probe"); | |
1557 | ieee->softmac_stats.rx_auth_rq++; | |
1558 | ||
53756de3 JP |
1559 | status = auth_rq_parse(skb, dest); |
1560 | if (status != -1) { | |
c8d86be3 GKH |
1561 | ieee80211_resp_to_auth(ieee, status, dest); |
1562 | } | |
1563 | //DMESG("Dest is "MACSTR, MAC2STR(dest)); | |
1564 | ||
1565 | } | |
1566 | ||
1567 | inline void | |
1568 | ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb) | |
1569 | { | |
1570 | ||
1571 | u8 dest[ETH_ALEN]; | |
1572 | //unsigned long flags; | |
1573 | ||
1574 | ieee->softmac_stats.rx_ass_rq++; | |
1575 | if (assoc_rq_parse(skb,dest) != -1){ | |
1576 | ieee80211_resp_to_assoc_rq(ieee, dest); | |
1577 | } | |
1578 | ||
0ee9f67c | 1579 | printk(KERN_INFO"New client associated: %pM\n", dest); |
c8d86be3 GKH |
1580 | } |
1581 | ||
1582 | ||
1583 | ||
1584 | void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr) | |
1585 | { | |
1586 | ||
1587 | struct sk_buff *buf = ieee80211_null_func(ieee, pwr); | |
1588 | ||
1589 | if (buf) | |
1590 | softmac_ps_mgmt_xmit(buf, ieee); | |
1591 | ||
1592 | } | |
1593 | ||
1594 | ||
1595 | short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l) | |
1596 | { | |
c8d86be3 | 1597 | int timeout = 0; |
5521a513 | 1598 | |
c8d86be3 GKH |
1599 | u8 dtim; |
1600 | /*if(ieee->ps == IEEE80211_PS_DISABLED || | |
1601 | ieee->iw_mode != IW_MODE_INFRA || | |
1602 | ieee->state != IEEE80211_LINKED) | |
1603 | ||
1604 | return 0; | |
1605 | */ | |
1606 | dtim = ieee->current_network.dtim_data; | |
1607 | //printk("DTIM\n"); | |
1608 | ||
1609 | if(!(dtim & IEEE80211_DTIM_VALID)) | |
1610 | return 0; | |
1611 | else | |
1612 | timeout = ieee->current_network.beacon_interval; | |
1613 | ||
1614 | //printk("VALID\n"); | |
1615 | ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID; | |
1616 | ||
1617 | if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps)) | |
1618 | return 2; | |
1619 | ||
1620 | if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout))) | |
1621 | return 0; | |
1622 | ||
1623 | if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout))) | |
1624 | return 0; | |
1625 | ||
1626 | if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) && | |
1627 | (ieee->mgmt_queue_tail != ieee->mgmt_queue_head)) | |
1628 | return 0; | |
5521a513 | 1629 | |
c8d86be3 GKH |
1630 | if(time_l){ |
1631 | *time_l = ieee->current_network.last_dtim_sta_time[0] | |
1632 | + MSECS((ieee->current_network.beacon_interval)); | |
1633 | //* ieee->current_network.dtim_period)); | |
1634 | //printk("beacon_interval:%x, dtim_period:%x, totol to Msecs:%x, HZ:%x\n", ieee->current_network.beacon_interval, ieee->current_network.dtim_period, MSECS(((ieee->current_network.beacon_interval * ieee->current_network.dtim_period))), HZ); | |
1635 | } | |
1636 | ||
c8d86be3 GKH |
1637 | if(time_h){ |
1638 | *time_h = ieee->current_network.last_dtim_sta_time[1]; | |
1639 | if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0]) | |
1640 | *time_h += 1; | |
1641 | } | |
1642 | ||
1643 | return 1; | |
1644 | ||
1645 | ||
1646 | } | |
1647 | ||
1648 | inline void ieee80211_sta_ps(struct ieee80211_device *ieee) | |
1649 | { | |
1650 | ||
1651 | u32 th,tl; | |
1652 | short sleep; | |
1653 | ||
1654 | unsigned long flags,flags2; | |
1655 | ||
1656 | spin_lock_irqsave(&ieee->lock, flags); | |
1657 | ||
1658 | if((ieee->ps == IEEE80211_PS_DISABLED || | |
1659 | ||
1660 | ieee->iw_mode != IW_MODE_INFRA || | |
1661 | ieee->state != IEEE80211_LINKED)){ | |
1662 | ||
1663 | //#warning CHECK_LOCK_HERE | |
1664 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); | |
1665 | ||
1666 | ieee80211_sta_wakeup(ieee, 1); | |
1667 | ||
1668 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); | |
1669 | } | |
1670 | ||
1671 | sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl); | |
d599edca | 1672 | // printk("===>%s,%d[2 wake, 1 sleep, 0 do nothing], ieee->sta_sleep = %d\n",__func__, sleep,ieee->sta_sleep); |
c8d86be3 GKH |
1673 | /* 2 wake, 1 sleep, 0 do nothing */ |
1674 | if(sleep == 0) | |
1675 | goto out; | |
1676 | ||
1677 | if(sleep == 1){ | |
1678 | ||
1679 | if(ieee->sta_sleep == 1) | |
1680 | ieee->enter_sleep_state(ieee->dev,th,tl); | |
1681 | ||
1682 | else if(ieee->sta_sleep == 0){ | |
1683 | // printk("send null 1\n"); | |
1684 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); | |
1685 | ||
1686 | if(ieee->ps_is_queue_empty(ieee->dev)){ | |
1687 | ||
1688 | ||
1689 | ieee->sta_sleep = 2; | |
1690 | ||
1691 | ieee->ps_request_tx_ack(ieee->dev); | |
1692 | ||
1693 | ieee80211_sta_ps_send_null_frame(ieee,1); | |
1694 | ||
1695 | ieee->ps_th = th; | |
1696 | ieee->ps_tl = tl; | |
1697 | } | |
1698 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); | |
1699 | ||
1700 | } | |
1701 | ||
1702 | ||
1703 | }else if(sleep == 2){ | |
1704 | //#warning CHECK_LOCK_HERE | |
1705 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); | |
1706 | ||
1707 | // printk("send wakeup packet\n"); | |
1708 | ieee80211_sta_wakeup(ieee,1); | |
1709 | ||
1710 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); | |
1711 | } | |
1712 | ||
1713 | out: | |
1714 | spin_unlock_irqrestore(&ieee->lock, flags); | |
1715 | ||
1716 | } | |
1717 | ||
1718 | void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl) | |
1719 | { | |
1720 | if(ieee->sta_sleep == 0){ | |
1721 | if(nl){ | |
1722 | // printk("Warning: driver is probably failing to report TX ps error\n"); | |
1723 | ieee->ps_request_tx_ack(ieee->dev); | |
1724 | ieee80211_sta_ps_send_null_frame(ieee, 0); | |
1725 | } | |
1726 | return; | |
1727 | ||
1728 | } | |
1729 | ||
1730 | if(ieee->sta_sleep == 1) | |
1731 | ieee->sta_wake_up(ieee->dev); | |
1732 | ||
1733 | ieee->sta_sleep = 0; | |
1734 | ||
1735 | if(nl){ | |
1736 | ieee->ps_request_tx_ack(ieee->dev); | |
1737 | ieee80211_sta_ps_send_null_frame(ieee, 0); | |
1738 | } | |
1739 | } | |
1740 | ||
1741 | void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success) | |
1742 | { | |
1743 | unsigned long flags,flags2; | |
1744 | ||
1745 | spin_lock_irqsave(&ieee->lock, flags); | |
1746 | if(ieee->sta_sleep == 2){ | |
1747 | /* Null frame with PS bit set */ | |
1748 | if(success){ | |
1749 | ||
d599edca | 1750 | // printk("==================> %s::enter sleep state\n",__func__); |
c8d86be3 GKH |
1751 | ieee->sta_sleep = 1; |
1752 | ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl); | |
1753 | } | |
1754 | /* if the card report not success we can't be sure the AP | |
1755 | * has not RXed so we can't assume the AP believe us awake | |
1756 | */ | |
1757 | } | |
1758 | /* 21112005 - tx again null without PS bit if lost */ | |
1759 | else { | |
1760 | ||
1761 | if((ieee->sta_sleep == 0) && !success){ | |
1762 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); | |
1763 | ieee80211_sta_ps_send_null_frame(ieee, 0); | |
1764 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); | |
1765 | } | |
1766 | } | |
1767 | spin_unlock_irqrestore(&ieee->lock, flags); | |
1768 | } | |
1769 | ||
1770 | inline int | |
1771 | ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb, | |
1772 | struct ieee80211_rx_stats *rx_stats, u16 type, | |
1773 | u16 stype) | |
1774 | { | |
1775 | struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data; | |
1776 | u16 errcode; | |
1777 | u8* challenge=NULL; | |
1778 | int chlen=0; | |
1779 | int aid=0; | |
1780 | struct ieee80211_assoc_response_frame *assoc_resp; | |
1781 | struct ieee80211_info_element *info_element; | |
1782 | ||
1783 | if(!ieee->proto_started) | |
1784 | return 0; | |
1785 | ||
1786 | if(ieee->sta_sleep || (ieee->ps != IEEE80211_PS_DISABLED && | |
1787 | ieee->iw_mode == IW_MODE_INFRA && | |
1788 | ieee->state == IEEE80211_LINKED)) | |
1789 | ||
1790 | tasklet_schedule(&ieee->ps_task); | |
1791 | ||
b6b1ac69 LF |
1792 | if (WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_PROBE_RESP && |
1793 | WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_BEACON) | |
c8d86be3 GKH |
1794 | ieee->last_rx_ps_time = jiffies; |
1795 | ||
b6b1ac69 | 1796 | switch (WLAN_FC_GET_STYPE(header->frame_control)) { |
c8d86be3 GKH |
1797 | |
1798 | case IEEE80211_STYPE_ASSOC_RESP: | |
1799 | case IEEE80211_STYPE_REASSOC_RESP: | |
1800 | ||
1801 | IEEE80211_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n", | |
1802 | WLAN_FC_GET_STYPE(header->frame_ctl)); | |
1803 | if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) && | |
1804 | ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED && | |
1805 | ieee->iw_mode == IW_MODE_INFRA){ | |
1806 | if (0 == (errcode=assoc_parse(skb, &aid))){ | |
1807 | u16 left; | |
1808 | ||
1809 | ieee->state=IEEE80211_LINKED; | |
1810 | ieee->assoc_id = aid; | |
1811 | ieee->softmac_stats.rx_ass_ok++; | |
1812 | ||
1813 | //printk(KERN_WARNING "nic_type = %s", (rx_stats->nic_type == 1)?"rtl8187":"rtl8187B"); | |
1814 | if(1 == rx_stats->nic_type) //card type is 8187 | |
1815 | { | |
1816 | goto associate_complete; | |
1817 | } | |
1818 | assoc_resp = (struct ieee80211_assoc_response_frame*)skb->data; | |
1819 | info_element = &assoc_resp->info_element; | |
1820 | left = skb->len - ((void*)info_element - (void*)assoc_resp); | |
1821 | ||
1822 | while (left >= sizeof(struct ieee80211_info_element_hdr)) { | |
1823 | if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) { | |
1824 | printk(KERN_WARNING "[re]associate reeponse error!"); | |
1825 | return 1; | |
1826 | } | |
1827 | switch (info_element->id) { | |
1828 | case MFIE_TYPE_GENERIC: | |
1829 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len); | |
1830 | if (info_element->len >= 8 && | |
1831 | info_element->data[0] == 0x00 && | |
1832 | info_element->data[1] == 0x50 && | |
1833 | info_element->data[2] == 0xf2 && | |
1834 | info_element->data[3] == 0x02 && | |
1835 | info_element->data[4] == 0x01) { | |
1836 | // Not care about version at present. | |
1837 | //WMM Parameter Element | |
1838 | memcpy(ieee->current_network.wmm_param,(u8*)(info_element->data\ | |
1839 | + 8),(info_element->len - 8)); | |
1840 | ||
1841 | if (((ieee->current_network.wmm_info^info_element->data[6])& \ | |
1842 | 0x0f)||(!ieee->init_wmmparam_flag)) { | |
bbc9a991 | 1843 | // refresh parameter element for current network |
c8d86be3 GKH |
1844 | // update the register parameter for hardware |
1845 | ieee->init_wmmparam_flag = 1; | |
1846 | queue_work(ieee->wq, &ieee->wmm_param_update_wq); | |
1847 | ||
1848 | } | |
1849 | //update info_element for current network | |
1850 | ieee->current_network.wmm_info = info_element->data[6]; | |
1851 | } | |
1852 | break; | |
1853 | default: | |
1854 | //nothing to do at present!!! | |
1855 | break; | |
1856 | } | |
1857 | ||
1858 | left -= sizeof(struct ieee80211_info_element_hdr) + | |
1859 | info_element->len; | |
1860 | info_element = (struct ieee80211_info_element *) | |
1861 | &info_element->data[info_element->len]; | |
1862 | } | |
1863 | if(!ieee->init_wmmparam_flag) //legacy AP, reset the AC_xx_param register | |
1864 | { | |
1865 | queue_work(ieee->wq,&ieee->wmm_param_update_wq); | |
1866 | ieee->init_wmmparam_flag = 1;//indicate AC_xx_param upated since last associate | |
1867 | } | |
1868 | associate_complete: | |
1869 | ieee80211_associate_complete(ieee); | |
1870 | }else{ | |
1871 | ieee->softmac_stats.rx_ass_err++; | |
1872 | IEEE80211_DEBUG_MGMT( | |
1873 | "Association response status code 0x%x\n", | |
1874 | errcode); | |
1875 | ieee80211_associate_abort(ieee); | |
1876 | } | |
1877 | } | |
c8d86be3 GKH |
1878 | break; |
1879 | ||
1880 | case IEEE80211_STYPE_ASSOC_REQ: | |
1881 | case IEEE80211_STYPE_REASSOC_REQ: | |
1882 | ||
1883 | if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) && | |
1884 | ieee->iw_mode == IW_MODE_MASTER) | |
1885 | ||
1886 | ieee80211_rx_assoc_rq(ieee, skb); | |
c8d86be3 GKH |
1887 | break; |
1888 | ||
1889 | case IEEE80211_STYPE_AUTH: | |
1890 | ||
c8d86be3 GKH |
1891 | if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){ |
1892 | if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING && | |
1893 | ieee->iw_mode == IW_MODE_INFRA){ | |
1894 | ||
1895 | IEEE80211_DEBUG_MGMT("Received authentication response"); | |
1896 | ||
1897 | if (0 == (errcode=auth_parse(skb, &challenge, &chlen))){ | |
1898 | if(ieee->open_wep || !challenge){ | |
1899 | ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED; | |
1900 | ieee->softmac_stats.rx_auth_rs_ok++; | |
1901 | ||
1902 | ieee80211_associate_step2(ieee); | |
1903 | }else{ | |
df574b8e | 1904 | ieee80211_rtl_auth_challenge(ieee, challenge, chlen); |
c8d86be3 GKH |
1905 | } |
1906 | }else{ | |
1907 | ieee->softmac_stats.rx_auth_rs_err++; | |
1908 | IEEE80211_DEBUG_MGMT("Authentication respose status code 0x%x",errcode); | |
1909 | ieee80211_associate_abort(ieee); | |
1910 | } | |
1911 | ||
1912 | }else if (ieee->iw_mode == IW_MODE_MASTER){ | |
1913 | ieee80211_rx_auth_rq(ieee, skb); | |
1914 | } | |
1915 | } | |
1916 | break; | |
1917 | ||
1918 | case IEEE80211_STYPE_PROBE_REQ: | |
1919 | ||
1920 | if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) && | |
1921 | ((ieee->iw_mode == IW_MODE_ADHOC || | |
1922 | ieee->iw_mode == IW_MODE_MASTER) && | |
1923 | ieee->state == IEEE80211_LINKED)) | |
1924 | ||
1925 | ieee80211_rx_probe_rq(ieee, skb); | |
1926 | break; | |
1927 | ||
1928 | case IEEE80211_STYPE_DISASSOC: | |
1929 | case IEEE80211_STYPE_DEAUTH: | |
c8d86be3 GKH |
1930 | /* FIXME for now repeat all the association procedure |
1931 | * both for disassociation and deauthentication | |
1932 | */ | |
1933 | if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) && | |
1934 | (ieee->state == IEEE80211_LINKED) && | |
1935 | (ieee->iw_mode == IW_MODE_INFRA) && | |
1936 | (!memcmp(header->addr2,ieee->current_network.bssid,ETH_ALEN))){ | |
1937 | ieee->state = IEEE80211_ASSOCIATING; | |
1938 | ieee->softmac_stats.reassoc++; | |
1939 | ||
1940 | //notify_wx_assoc_event(ieee); //YJ,del,080828, do not notify os here | |
1941 | queue_work(ieee->wq, &ieee->associate_procedure_wq); | |
1942 | } | |
1943 | ||
1944 | break; | |
1945 | ||
1946 | default: | |
1947 | return -1; | |
1948 | break; | |
1949 | } | |
1950 | ||
1951 | //dev_kfree_skb_any(skb); | |
1952 | return 0; | |
1953 | } | |
1954 | ||
1955 | ||
1956 | ||
25985edc | 1957 | /* following are for a simpler TX queue management. |
c8d86be3 GKH |
1958 | * Instead of using netif_[stop/wake]_queue the driver |
1959 | * will uses these two function (plus a reset one), that | |
1960 | * will internally uses the kernel netif_* and takes | |
1961 | * care of the ieee802.11 fragmentation. | |
1962 | * So the driver receives a fragment per time and might | |
1963 | * call the stop function when it want without take care | |
bbc9a991 | 1964 | * to have enough room to TX an entire packet. |
c8d86be3 GKH |
1965 | * This might be useful if each fragment need it's own |
1966 | * descriptor, thus just keep a total free memory > than | |
bbc9a991 | 1967 | * the max fragmentation threshold is not enough.. If the |
c8d86be3 GKH |
1968 | * ieee802.11 stack passed a TXB struct then you needed |
1969 | * to keep N free descriptors where | |
1970 | * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD | |
1971 | * In this way you need just one and the 802.11 stack | |
1972 | * will take care of buffering fragments and pass them to | |
1973 | * to the driver later, when it wakes the queue. | |
1974 | */ | |
1975 | ||
1976 | void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee) | |
1977 | { | |
1978 | ||
1979 | ||
1980 | unsigned long flags; | |
1981 | int i; | |
c8d86be3 GKH |
1982 | |
1983 | spin_lock_irqsave(&ieee->lock,flags); | |
c8d86be3 | 1984 | |
c8d86be3 GKH |
1985 | /* called with 2nd parm 0, no tx mgmt lock required */ |
1986 | ieee80211_sta_wakeup(ieee,0); | |
1987 | ||
1988 | for(i = 0; i < txb->nr_frags; i++) { | |
1989 | ||
1990 | if (ieee->queue_stop){ | |
1991 | ieee->tx_pending.txb = txb; | |
1992 | ieee->tx_pending.frag = i; | |
1993 | goto exit; | |
1994 | }else{ | |
1995 | ieee->softmac_data_hard_start_xmit( | |
1996 | txb->fragments[i], | |
c8d86be3 | 1997 | ieee->dev,ieee->rate); |
c8d86be3 GKH |
1998 | //(i+1)<txb->nr_frags); |
1999 | ieee->stats.tx_packets++; | |
2000 | ieee->stats.tx_bytes += txb->fragments[i]->len; | |
2001 | ieee->dev->trans_start = jiffies; | |
2002 | } | |
2003 | } | |
2004 | ||
2005 | ieee80211_txb_free(txb); | |
2006 | ||
2007 | exit: | |
2008 | spin_unlock_irqrestore(&ieee->lock,flags); | |
2009 | ||
2010 | } | |
2011 | ||
2012 | /* called with ieee->lock acquired */ | |
2013 | void ieee80211_resume_tx(struct ieee80211_device *ieee) | |
2014 | { | |
2015 | int i; | |
2016 | for(i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) { | |
2017 | ||
2018 | if (ieee->queue_stop){ | |
2019 | ieee->tx_pending.frag = i; | |
2020 | return; | |
2021 | }else{ | |
2022 | ||
2023 | ieee->softmac_data_hard_start_xmit( | |
2024 | ieee->tx_pending.txb->fragments[i], | |
2025 | ieee->dev,ieee->rate); | |
2026 | //(i+1)<ieee->tx_pending.txb->nr_frags); | |
2027 | ieee->stats.tx_packets++; | |
2028 | ieee->dev->trans_start = jiffies; | |
2029 | } | |
2030 | } | |
2031 | ||
2032 | ||
2033 | ieee80211_txb_free(ieee->tx_pending.txb); | |
2034 | ieee->tx_pending.txb = NULL; | |
2035 | } | |
2036 | ||
2037 | ||
2038 | void ieee80211_reset_queue(struct ieee80211_device *ieee) | |
2039 | { | |
2040 | unsigned long flags; | |
2041 | ||
2042 | spin_lock_irqsave(&ieee->lock,flags); | |
2043 | init_mgmt_queue(ieee); | |
2044 | if (ieee->tx_pending.txb){ | |
2045 | ieee80211_txb_free(ieee->tx_pending.txb); | |
2046 | ieee->tx_pending.txb = NULL; | |
2047 | } | |
2048 | ieee->queue_stop = 0; | |
2049 | spin_unlock_irqrestore(&ieee->lock,flags); | |
2050 | ||
2051 | } | |
2052 | ||
df574b8e | 2053 | void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee) |
c8d86be3 GKH |
2054 | { |
2055 | ||
2056 | unsigned long flags; | |
2057 | struct sk_buff *skb; | |
2058 | struct ieee80211_hdr_3addr *header; | |
2059 | ||
2060 | spin_lock_irqsave(&ieee->lock,flags); | |
2061 | if (! ieee->queue_stop) goto exit; | |
2062 | ||
2063 | ieee->queue_stop = 0; | |
2064 | ||
2065 | if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){ | |
2066 | while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){ | |
2067 | ||
2068 | header = (struct ieee80211_hdr_3addr *) skb->data; | |
2069 | ||
b6b1ac69 | 2070 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
c8d86be3 GKH |
2071 | |
2072 | if (ieee->seq_ctrl[0] == 0xFFF) | |
2073 | ieee->seq_ctrl[0] = 0; | |
2074 | else | |
2075 | ieee->seq_ctrl[0]++; | |
2076 | ||
2077 | //printk(KERN_ALERT "ieee80211_wake_queue \n"); | |
2078 | ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate); | |
2079 | dev_kfree_skb_any(skb);//edit by thomas | |
2080 | } | |
2081 | } | |
2082 | if (!ieee->queue_stop && ieee->tx_pending.txb) | |
2083 | ieee80211_resume_tx(ieee); | |
2084 | ||
2085 | if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){ | |
2086 | ieee->softmac_stats.swtxawake++; | |
2087 | netif_wake_queue(ieee->dev); | |
2088 | } | |
2089 | ||
2090 | exit : | |
2091 | spin_unlock_irqrestore(&ieee->lock,flags); | |
2092 | } | |
2093 | ||
2094 | ||
df574b8e | 2095 | void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee) |
c8d86be3 GKH |
2096 | { |
2097 | //unsigned long flags; | |
2098 | //spin_lock_irqsave(&ieee->lock,flags); | |
2099 | ||
2100 | if (! netif_queue_stopped(ieee->dev)){ | |
2101 | netif_stop_queue(ieee->dev); | |
2102 | ieee->softmac_stats.swtxstop++; | |
2103 | } | |
2104 | ieee->queue_stop = 1; | |
2105 | //spin_unlock_irqrestore(&ieee->lock,flags); | |
2106 | ||
2107 | } | |
2108 | ||
2109 | ||
2110 | inline void ieee80211_randomize_cell(struct ieee80211_device *ieee) | |
2111 | { | |
2112 | ||
2113 | get_random_bytes(ieee->current_network.bssid, ETH_ALEN); | |
2114 | ||
2115 | /* an IBSS cell address must have the two less significant | |
2116 | * bits of the first byte = 2 | |
2117 | */ | |
2118 | ieee->current_network.bssid[0] &= ~0x01; | |
2119 | ieee->current_network.bssid[0] |= 0x02; | |
2120 | } | |
2121 | ||
2122 | /* called in user context only */ | |
2123 | void ieee80211_start_master_bss(struct ieee80211_device *ieee) | |
2124 | { | |
2125 | ieee->assoc_id = 1; | |
2126 | ||
2127 | if (ieee->current_network.ssid_len == 0){ | |
2128 | strncpy(ieee->current_network.ssid, | |
2129 | IEEE80211_DEFAULT_TX_ESSID, | |
2130 | IW_ESSID_MAX_SIZE); | |
2131 | ||
2132 | ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID); | |
2133 | ieee->ssid_set = 1; | |
2134 | } | |
2135 | ||
2136 | memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN); | |
2137 | ||
2138 | ieee->set_chan(ieee->dev, ieee->current_network.channel); | |
2139 | ieee->state = IEEE80211_LINKED; | |
2140 | ieee->link_change(ieee->dev); | |
2141 | notify_wx_assoc_event(ieee); | |
2142 | ||
2143 | if (ieee->data_hard_resume) | |
2144 | ieee->data_hard_resume(ieee->dev); | |
2145 | ||
2146 | netif_carrier_on(ieee->dev); | |
2147 | } | |
2148 | ||
2149 | void ieee80211_start_monitor_mode(struct ieee80211_device *ieee) | |
2150 | { | |
2151 | if(ieee->raw_tx){ | |
2152 | ||
2153 | if (ieee->data_hard_resume) | |
2154 | ieee->data_hard_resume(ieee->dev); | |
2155 | ||
2156 | netif_carrier_on(ieee->dev); | |
2157 | } | |
2158 | } | |
0370453f | 2159 | |
c8d86be3 GKH |
2160 | void ieee80211_start_ibss_wq(struct work_struct *work) |
2161 | { | |
bf6aede7 | 2162 | struct delayed_work *dwork = to_delayed_work(work); |
c8d86be3 | 2163 | struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, start_ibss_wq); |
c8d86be3 GKH |
2164 | |
2165 | /* iwconfig mode ad-hoc will schedule this and return | |
2166 | * on the other hand this will block further iwconfig SET | |
2167 | * operations because of the wx_sem hold. | |
2168 | * Anyway some most set operations set a flag to speed-up | |
2169 | * (abort) this wq (when syncro scanning) before sleeping | |
2170 | * on the semaphore | |
2171 | */ | |
2172 | ||
2173 | down(&ieee->wx_sem); | |
2174 | ||
2175 | ||
2176 | if (ieee->current_network.ssid_len == 0){ | |
2177 | strcpy(ieee->current_network.ssid,IEEE80211_DEFAULT_TX_ESSID); | |
2178 | ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID); | |
2179 | ieee->ssid_set = 1; | |
2180 | } | |
2181 | ||
2182 | /* check if we have this cell in our network list */ | |
2183 | ieee80211_softmac_check_all_nets(ieee); | |
2184 | ||
c8d86be3 GKH |
2185 | if(ieee->state == IEEE80211_NOLINK) |
2186 | ieee->current_network.channel = 10; | |
c8d86be3 GKH |
2187 | /* if not then the state is not linked. Maybe the user swithced to |
2188 | * ad-hoc mode just after being in monitor mode, or just after | |
2189 | * being very few time in managed mode (so the card have had no | |
2190 | * time to scan all the chans..) or we have just run up the iface | |
2191 | * after setting ad-hoc mode. So we have to give another try.. | |
2192 | * Here, in ibss mode, should be safe to do this without extra care | |
2193 | * (in bss mode we had to make sure no-one tryed to associate when | |
2194 | * we had just checked the ieee->state and we was going to start the | |
2195 | * scan) beacause in ibss mode the ieee80211_new_net function, when | |
2196 | * finds a good net, just set the ieee->state to IEEE80211_LINKED, | |
2197 | * so, at worst, we waste a bit of time to initiate an unneeded syncro | |
2198 | * scan, that will stop at the first round because it sees the state | |
2199 | * associated. | |
2200 | */ | |
2201 | if (ieee->state == IEEE80211_NOLINK) | |
2202 | ieee80211_start_scan_syncro(ieee); | |
2203 | ||
2204 | /* the network definitively is not here.. create a new cell */ | |
2205 | if (ieee->state == IEEE80211_NOLINK){ | |
2206 | printk("creating new IBSS cell\n"); | |
2207 | if(!ieee->wap_set) | |
2208 | ieee80211_randomize_cell(ieee); | |
2209 | ||
2210 | if(ieee->modulation & IEEE80211_CCK_MODULATION){ | |
2211 | ||
2212 | ieee->current_network.rates_len = 4; | |
2213 | ||
2214 | ieee->current_network.rates[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; | |
2215 | ieee->current_network.rates[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; | |
2216 | ieee->current_network.rates[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB; | |
2217 | ieee->current_network.rates[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB; | |
2218 | ||
2219 | }else | |
2220 | ieee->current_network.rates_len = 0; | |
2221 | ||
2222 | if(ieee->modulation & IEEE80211_OFDM_MODULATION){ | |
2223 | ieee->current_network.rates_ex_len = 8; | |
2224 | ||
2225 | ieee->current_network.rates_ex[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB; | |
2226 | ieee->current_network.rates_ex[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB; | |
2227 | ieee->current_network.rates_ex[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB; | |
2228 | ieee->current_network.rates_ex[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB; | |
2229 | ieee->current_network.rates_ex[4] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB; | |
2230 | ieee->current_network.rates_ex[5] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB; | |
2231 | ieee->current_network.rates_ex[6] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB; | |
2232 | ieee->current_network.rates_ex[7] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB; | |
2233 | ||
2234 | ieee->rate = 540; | |
2235 | }else{ | |
2236 | ieee->current_network.rates_ex_len = 0; | |
2237 | ieee->rate = 110; | |
2238 | } | |
2239 | ||
2240 | // By default, WMM function will be disabled in IBSS mode | |
2241 | ieee->current_network.QoS_Enable = 0; | |
2242 | ||
2243 | ieee->current_network.atim_window = 0; | |
2244 | ieee->current_network.capability = WLAN_CAPABILITY_IBSS; | |
2245 | if(ieee->short_slot) | |
2246 | ieee->current_network.capability |= WLAN_CAPABILITY_SHORT_SLOT; | |
2247 | ||
2248 | } | |
2249 | ||
2250 | ieee->state = IEEE80211_LINKED; | |
2251 | ieee->set_chan(ieee->dev, ieee->current_network.channel); | |
2252 | ieee->link_change(ieee->dev); | |
2253 | ||
2254 | notify_wx_assoc_event(ieee); | |
2255 | ||
2256 | ieee80211_start_send_beacons(ieee); | |
2257 | printk(KERN_WARNING "after sending beacon packet!\n"); | |
2258 | ||
2259 | if (ieee->data_hard_resume) | |
2260 | ieee->data_hard_resume(ieee->dev); | |
2261 | ||
2262 | netif_carrier_on(ieee->dev); | |
2263 | ||
2264 | up(&ieee->wx_sem); | |
2265 | } | |
2266 | inline void ieee80211_start_ibss(struct ieee80211_device *ieee) | |
2267 | { | |
2268 | queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 100); | |
2269 | } | |
2270 | ||
2271 | /* this is called only in user context, with wx_sem held */ | |
2272 | void ieee80211_start_bss(struct ieee80211_device *ieee) | |
2273 | { | |
2274 | unsigned long flags; | |
c8d86be3 GKH |
2275 | // |
2276 | // Ref: 802.11d 11.1.3.3 | |
2277 | // STA shall not start a BSS unless properly formed Beacon frame including a Country IE. | |
2278 | // | |
2279 | if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) | |
2280 | { | |
2281 | if(! ieee->bGlobalDomain) | |
2282 | { | |
2283 | return; | |
2284 | } | |
2285 | } | |
c8d86be3 GKH |
2286 | /* check if we have already found the net we |
2287 | * are interested in (if any). | |
2288 | * if not (we are disassociated and we are not | |
2289 | * in associating / authenticating phase) start the background scanning. | |
2290 | */ | |
2291 | ieee80211_softmac_check_all_nets(ieee); | |
2292 | ||
2293 | /* ensure no-one start an associating process (thus setting | |
2294 | * the ieee->state to ieee80211_ASSOCIATING) while we | |
2295 | * have just cheked it and we are going to enable scan. | |
2296 | * The ieee80211_new_net function is always called with | |
2297 | * lock held (from both ieee80211_softmac_check_all_nets and | |
2298 | * the rx path), so we cannot be in the middle of such function | |
2299 | */ | |
2300 | spin_lock_irqsave(&ieee->lock, flags); | |
2301 | ||
2302 | //#ifdef ENABLE_IPS | |
2303 | // printk("start bss ENABLE_IPS\n"); | |
2304 | //#else | |
2305 | if (ieee->state == IEEE80211_NOLINK){ | |
2306 | ieee->actscanning = true; | |
df574b8e | 2307 | ieee80211_rtl_start_scan(ieee); |
c8d86be3 GKH |
2308 | } |
2309 | //#endif | |
2310 | spin_unlock_irqrestore(&ieee->lock, flags); | |
2311 | } | |
2312 | ||
2313 | /* called only in userspace context */ | |
2314 | void ieee80211_disassociate(struct ieee80211_device *ieee) | |
2315 | { | |
2316 | netif_carrier_off(ieee->dev); | |
2317 | ||
2318 | if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) | |
2319 | ieee80211_reset_queue(ieee); | |
2320 | ||
2321 | if (ieee->data_hard_stop) | |
2322 | ieee->data_hard_stop(ieee->dev); | |
2323 | ||
c8d86be3 GKH |
2324 | if(IS_DOT11D_ENABLE(ieee)) |
2325 | Dot11d_Reset(ieee); | |
592010bb | 2326 | |
c8d86be3 | 2327 | ieee->link_change(ieee->dev); |
592010bb SO |
2328 | if (ieee->state == IEEE80211_LINKED) |
2329 | notify_wx_assoc_event(ieee); | |
2330 | ieee->state = IEEE80211_NOLINK; | |
c8d86be3 GKH |
2331 | |
2332 | } | |
c8d86be3 GKH |
2333 | void ieee80211_associate_retry_wq(struct work_struct *work) |
2334 | { | |
bf6aede7 | 2335 | struct delayed_work *dwork = to_delayed_work(work); |
c8d86be3 | 2336 | struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, associate_retry_wq); |
c8d86be3 GKH |
2337 | unsigned long flags; |
2338 | down(&ieee->wx_sem); | |
2339 | if(!ieee->proto_started) | |
2340 | goto exit; | |
2341 | if(ieee->state != IEEE80211_ASSOCIATING_RETRY) | |
2342 | goto exit; | |
2343 | /* until we do not set the state to IEEE80211_NOLINK | |
2344 | * there are no possibility to have someone else trying | |
2345 | * to start an association procdure (we get here with | |
2346 | * ieee->state = IEEE80211_ASSOCIATING). | |
2347 | * When we set the state to IEEE80211_NOLINK it is possible | |
2348 | * that the RX path run an attempt to associate, but | |
2349 | * both ieee80211_softmac_check_all_nets and the | |
2350 | * RX path works with ieee->lock held so there are no | |
2351 | * problems. If we are still disassociated then start a scan. | |
2352 | * the lock here is necessary to ensure no one try to start | |
2353 | * an association procedure when we have just checked the | |
2354 | * state and we are going to start the scan. | |
2355 | */ | |
2356 | ieee->state = IEEE80211_NOLINK; | |
2357 | ieee->beinretry = true; | |
2358 | ieee80211_softmac_check_all_nets(ieee); | |
2359 | ||
2360 | spin_lock_irqsave(&ieee->lock, flags); | |
2361 | ||
2362 | if(ieee->state == IEEE80211_NOLINK){ | |
2363 | ieee->beinretry = false; | |
2364 | ieee->actscanning = true; | |
df574b8e | 2365 | ieee80211_rtl_start_scan(ieee); |
c8d86be3 GKH |
2366 | } |
2367 | //YJ,add,080828, notify os here | |
2368 | if(ieee->state == IEEE80211_NOLINK) | |
2369 | { | |
2370 | notify_wx_assoc_event(ieee); | |
2371 | } | |
2372 | //YJ,add,080828,end | |
2373 | spin_unlock_irqrestore(&ieee->lock, flags); | |
2374 | ||
2375 | exit: | |
2376 | up(&ieee->wx_sem); | |
2377 | } | |
2378 | ||
2379 | struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee) | |
2380 | { | |
2381 | u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff}; | |
2382 | ||
2383 | struct sk_buff *skb = NULL; | |
2384 | struct ieee80211_probe_response *b; | |
2385 | ||
c8d86be3 | 2386 | skb = ieee80211_probe_resp(ieee, broadcast_addr); |
c8d86be3 GKH |
2387 | if (!skb) |
2388 | return NULL; | |
2389 | ||
2390 | b = (struct ieee80211_probe_response *) skb->data; | |
2391 | b->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_BEACON); | |
2392 | ||
2393 | return skb; | |
2394 | ||
2395 | } | |
2396 | ||
2397 | struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee) | |
2398 | { | |
2399 | struct sk_buff *skb; | |
2400 | struct ieee80211_probe_response *b; | |
2401 | ||
2402 | skb = ieee80211_get_beacon_(ieee); | |
2403 | if(!skb) | |
2404 | return NULL; | |
2405 | ||
2406 | b = (struct ieee80211_probe_response *) skb->data; | |
2407 | b->header.seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); | |
2408 | ||
2409 | if (ieee->seq_ctrl[0] == 0xFFF) | |
2410 | ieee->seq_ctrl[0] = 0; | |
2411 | else | |
2412 | ieee->seq_ctrl[0]++; | |
2413 | ||
2414 | return skb; | |
2415 | } | |
2416 | ||
2417 | void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee) | |
2418 | { | |
2419 | ieee->sync_scan_hurryup = 1; | |
2420 | down(&ieee->wx_sem); | |
2421 | ieee80211_stop_protocol(ieee); | |
2422 | up(&ieee->wx_sem); | |
2423 | } | |
2424 | ||
2425 | ||
2426 | void ieee80211_stop_protocol(struct ieee80211_device *ieee) | |
2427 | { | |
2428 | if (!ieee->proto_started) | |
2429 | return; | |
2430 | ||
2431 | ieee->proto_started = 0; | |
2432 | ||
c8d86be3 GKH |
2433 | ieee80211_stop_send_beacons(ieee); |
2434 | if((ieee->iw_mode == IW_MODE_INFRA)&&(ieee->state == IEEE80211_LINKED)) { | |
2435 | SendDisassociation(ieee,NULL,WLAN_REASON_DISASSOC_STA_HAS_LEFT); | |
2436 | } | |
2437 | del_timer_sync(&ieee->associate_timer); | |
2438 | cancel_delayed_work(&ieee->associate_retry_wq); | |
2439 | cancel_delayed_work(&ieee->start_ibss_wq); | |
2440 | ieee80211_stop_scan(ieee); | |
2441 | ||
2442 | ieee80211_disassociate(ieee); | |
2443 | } | |
2444 | ||
2445 | void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee) | |
2446 | { | |
2447 | ieee->sync_scan_hurryup = 0; | |
2448 | down(&ieee->wx_sem); | |
2449 | ieee80211_start_protocol(ieee); | |
2450 | up(&ieee->wx_sem); | |
2451 | } | |
2452 | ||
2453 | void ieee80211_start_protocol(struct ieee80211_device *ieee) | |
2454 | { | |
2455 | short ch = 0; | |
2456 | int i = 0; | |
2457 | ||
2458 | if (ieee->proto_started) | |
2459 | return; | |
2460 | ||
2461 | ieee->proto_started = 1; | |
2462 | ||
2463 | if (ieee->current_network.channel == 0){ | |
2464 | do{ | |
2465 | ch++; | |
2466 | if (ch > MAX_CHANNEL_NUMBER) | |
2467 | return; /* no channel found */ | |
2468 | ||
c8d86be3 | 2469 | }while(!GET_DOT11D_INFO(ieee)->channel_map[ch]); |
c8d86be3 GKH |
2470 | |
2471 | ieee->current_network.channel = ch; | |
2472 | } | |
2473 | ||
2474 | if (ieee->current_network.beacon_interval == 0) | |
2475 | ieee->current_network.beacon_interval = 100; | |
2476 | ieee->set_chan(ieee->dev,ieee->current_network.channel); | |
2477 | ||
2478 | for(i = 0; i < 17; i++) { | |
2479 | ieee->last_rxseq_num[i] = -1; | |
2480 | ieee->last_rxfrag_num[i] = -1; | |
2481 | ieee->last_packet_time[i] = 0; | |
2482 | } | |
2483 | ||
2484 | ieee->init_wmmparam_flag = 0;//reinitialize AC_xx_PARAM registers. | |
2485 | ||
2486 | ||
2487 | /* if the user set the MAC of the ad-hoc cell and then | |
2488 | * switch to managed mode, shall we make sure that association | |
2489 | * attempts does not fail just because the user provide the essid | |
2490 | * and the nic is still checking for the AP MAC ?? | |
2491 | */ | |
2492 | switch (ieee->iw_mode) { | |
2493 | case IW_MODE_AUTO: | |
2494 | ieee->iw_mode = IW_MODE_INFRA; | |
2495 | //not set break here intentionly | |
2496 | case IW_MODE_INFRA: | |
2497 | ieee80211_start_bss(ieee); | |
2498 | break; | |
2499 | ||
2500 | case IW_MODE_ADHOC: | |
2501 | ieee80211_start_ibss(ieee); | |
2502 | break; | |
2503 | ||
2504 | case IW_MODE_MASTER: | |
2505 | ieee80211_start_master_bss(ieee); | |
2506 | break; | |
2507 | ||
2508 | case IW_MODE_MONITOR: | |
2509 | ieee80211_start_monitor_mode(ieee); | |
2510 | break; | |
2511 | ||
2512 | default: | |
c8d86be3 GKH |
2513 | ieee->iw_mode = IW_MODE_INFRA; |
2514 | ieee80211_start_bss(ieee); | |
c8d86be3 GKH |
2515 | break; |
2516 | } | |
2517 | } | |
2518 | ||
2519 | ||
2520 | #define DRV_NAME "Ieee80211" | |
2521 | void ieee80211_softmac_init(struct ieee80211_device *ieee) | |
2522 | { | |
2523 | int i; | |
2524 | memset(&ieee->current_network, 0, sizeof(struct ieee80211_network)); | |
2525 | ||
2526 | ieee->state = IEEE80211_NOLINK; | |
2527 | ieee->sync_scan_hurryup = 0; | |
2528 | for(i = 0; i < 5; i++) { | |
2529 | ieee->seq_ctrl[i] = 0; | |
2530 | } | |
2531 | ||
2532 | ieee->assoc_id = 0; | |
2533 | ieee->queue_stop = 0; | |
2534 | ieee->scanning = 0; | |
2535 | ieee->softmac_features = 0; //so IEEE2100-like driver are happy | |
2536 | ieee->wap_set = 0; | |
2537 | ieee->ssid_set = 0; | |
2538 | ieee->proto_started = 0; | |
2539 | ieee->basic_rate = IEEE80211_DEFAULT_BASIC_RATE; | |
2540 | ieee->rate = 3; | |
2541 | //#ifdef ENABLE_LPS | |
2542 | ieee->ps = IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST; | |
2543 | //#else | |
2544 | // ieee->ps = IEEE80211_PS_DISABLED; | |
2545 | //#endif | |
2546 | ieee->sta_sleep = 0; | |
2547 | //by amy | |
2548 | ieee->bInactivePs = false; | |
2549 | ieee->actscanning = false; | |
2550 | ieee->ListenInterval = 2; | |
2551 | ieee->NumRxDataInPeriod = 0; //YJ,add,080828 | |
2552 | ieee->NumRxBcnInPeriod = 0; //YJ,add,080828 | |
2553 | ieee->NumRxOkTotal = 0;//+by amy 080312 | |
2554 | ieee->NumRxUnicast = 0;//YJ,add,080828,for keep alive | |
2555 | ieee->beinretry = false; | |
2556 | ieee->bHwRadioOff = false; | |
2557 | //by amy | |
c8d86be3 GKH |
2558 | |
2559 | init_mgmt_queue(ieee); | |
5521a513 | 2560 | |
c8d86be3 GKH |
2561 | ieee->tx_pending.txb = NULL; |
2562 | ||
2563 | init_timer(&ieee->associate_timer); | |
2564 | ieee->associate_timer.data = (unsigned long)ieee; | |
2565 | ieee->associate_timer.function = ieee80211_associate_abort_cb; | |
2566 | ||
2567 | init_timer(&ieee->beacon_timer); | |
2568 | ieee->beacon_timer.data = (unsigned long) ieee; | |
2569 | ieee->beacon_timer.function = ieee80211_send_beacon_cb; | |
2570 | ||
2571 | #ifdef PF_SYNCTHREAD | |
2572 | ieee->wq = create_workqueue(DRV_NAME,0); | |
2573 | #else | |
2574 | ieee->wq = create_workqueue(DRV_NAME); | |
2575 | #endif | |
c8d86be3 GKH |
2576 | INIT_DELAYED_WORK(&ieee->start_ibss_wq,(void*) ieee80211_start_ibss_wq); |
2577 | INIT_WORK(&ieee->associate_complete_wq,(void*) ieee80211_associate_complete_wq); | |
2578 | INIT_WORK(&ieee->associate_procedure_wq,(void*) ieee80211_associate_procedure_wq); | |
2579 | INIT_DELAYED_WORK(&ieee->softmac_scan_wq,(void*) ieee80211_softmac_scan_wq); | |
2580 | INIT_DELAYED_WORK(&ieee->associate_retry_wq,(void*) ieee80211_associate_retry_wq); | |
2581 | INIT_WORK(&ieee->wx_sync_scan_wq,(void*) ieee80211_wx_sync_scan_wq); | |
2582 | // INIT_WORK(&ieee->watch_dog_wq,(void*) ieee80211_watch_dog_wq); | |
0370453f | 2583 | |
c8d86be3 GKH |
2584 | sema_init(&ieee->wx_sem, 1); |
2585 | sema_init(&ieee->scan_sem, 1); | |
2586 | ||
2587 | spin_lock_init(&ieee->mgmt_tx_lock); | |
2588 | spin_lock_init(&ieee->beacon_lock); | |
2589 | ||
2590 | tasklet_init(&ieee->ps_task, | |
2591 | (void(*)(unsigned long)) ieee80211_sta_ps, | |
2592 | (unsigned long)ieee); | |
c8d86be3 | 2593 | ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC); |
c8d86be3 GKH |
2594 | } |
2595 | ||
2596 | void ieee80211_softmac_free(struct ieee80211_device *ieee) | |
2597 | { | |
2598 | down(&ieee->wx_sem); | |
2599 | ||
2600 | del_timer_sync(&ieee->associate_timer); | |
2601 | cancel_delayed_work(&ieee->associate_retry_wq); | |
2602 | ||
2603 | ||
2604 | //add for RF power on power of by lizhaoming 080512 | |
2605 | cancel_delayed_work(&ieee->GPIOChangeRFWorkItem); | |
2606 | ||
c8d86be3 | 2607 | destroy_workqueue(ieee->wq); |
76be349c | 2608 | kfree(ieee->pDot11dInfo); |
c8d86be3 GKH |
2609 | up(&ieee->wx_sem); |
2610 | } | |
2611 | ||
2612 | /******************************************************** | |
2613 | * Start of WPA code. * | |
2614 | * this is stolen from the ipw2200 driver * | |
2615 | ********************************************************/ | |
2616 | ||
2617 | ||
2618 | static int ieee80211_wpa_enable(struct ieee80211_device *ieee, int value) | |
2619 | { | |
2620 | /* This is called when wpa_supplicant loads and closes the driver | |
2621 | * interface. */ | |
2622 | printk("%s WPA\n",value ? "enabling" : "disabling"); | |
2623 | ieee->wpa_enabled = value; | |
2624 | return 0; | |
2625 | } | |
2626 | ||
2627 | ||
2628 | void ieee80211_wpa_assoc_frame(struct ieee80211_device *ieee, char *wpa_ie, int wpa_ie_len) | |
2629 | { | |
2630 | /* make sure WPA is enabled */ | |
2631 | ieee80211_wpa_enable(ieee, 1); | |
2632 | ||
2633 | ieee80211_disassociate(ieee); | |
2634 | } | |
2635 | ||
2636 | ||
2637 | static int ieee80211_wpa_mlme(struct ieee80211_device *ieee, int command, int reason) | |
2638 | { | |
2639 | ||
2640 | int ret = 0; | |
2641 | ||
2642 | switch (command) { | |
2643 | case IEEE_MLME_STA_DEAUTH: | |
2644 | // silently ignore | |
2645 | break; | |
2646 | ||
2647 | case IEEE_MLME_STA_DISASSOC: | |
2648 | ieee80211_disassociate(ieee); | |
2649 | break; | |
2650 | ||
2651 | default: | |
2652 | printk("Unknown MLME request: %d\n", command); | |
2653 | ret = -EOPNOTSUPP; | |
2654 | } | |
2655 | ||
2656 | return ret; | |
2657 | } | |
2658 | ||
2659 | ||
2660 | static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee, | |
2661 | struct ieee_param *param, int plen) | |
2662 | { | |
2663 | u8 *buf; | |
2664 | ||
2665 | if (param->u.wpa_ie.len > MAX_WPA_IE_LEN || | |
2666 | (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL)) | |
2667 | return -EINVAL; | |
2668 | ||
2669 | if (param->u.wpa_ie.len) { | |
94002c07 JL |
2670 | buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len, |
2671 | GFP_KERNEL); | |
c8d86be3 GKH |
2672 | if (buf == NULL) |
2673 | return -ENOMEM; | |
2674 | ||
c8d86be3 GKH |
2675 | kfree(ieee->wpa_ie); |
2676 | ieee->wpa_ie = buf; | |
2677 | ieee->wpa_ie_len = param->u.wpa_ie.len; | |
2678 | } else { | |
2679 | kfree(ieee->wpa_ie); | |
2680 | ieee->wpa_ie = NULL; | |
2681 | ieee->wpa_ie_len = 0; | |
2682 | } | |
2683 | ||
2684 | ieee80211_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len); | |
2685 | return 0; | |
2686 | } | |
2687 | ||
2688 | #define AUTH_ALG_OPEN_SYSTEM 0x1 | |
2689 | #define AUTH_ALG_SHARED_KEY 0x2 | |
2690 | ||
2691 | static int ieee80211_wpa_set_auth_algs(struct ieee80211_device *ieee, int value) | |
2692 | { | |
2693 | ||
2694 | struct ieee80211_security sec = { | |
2695 | .flags = SEC_AUTH_MODE, | |
2696 | }; | |
2697 | int ret = 0; | |
2698 | ||
2699 | if (value & AUTH_ALG_SHARED_KEY) { | |
2700 | sec.auth_mode = WLAN_AUTH_SHARED_KEY; | |
2701 | ieee->open_wep = 0; | |
2702 | } else { | |
2703 | sec.auth_mode = WLAN_AUTH_OPEN; | |
2704 | ieee->open_wep = 1; | |
2705 | } | |
2706 | ||
2707 | if (ieee->set_security) | |
2708 | ieee->set_security(ieee->dev, &sec); | |
2709 | else | |
2710 | ret = -EOPNOTSUPP; | |
2711 | ||
2712 | return ret; | |
2713 | } | |
2714 | ||
2715 | static int ieee80211_wpa_set_param(struct ieee80211_device *ieee, u8 name, u32 value) | |
2716 | { | |
2717 | int ret=0; | |
2718 | unsigned long flags; | |
2719 | ||
2720 | switch (name) { | |
2721 | case IEEE_PARAM_WPA_ENABLED: | |
2722 | ret = ieee80211_wpa_enable(ieee, value); | |
2723 | break; | |
2724 | ||
2725 | case IEEE_PARAM_TKIP_COUNTERMEASURES: | |
2726 | ieee->tkip_countermeasures=value; | |
2727 | break; | |
2728 | ||
2729 | case IEEE_PARAM_DROP_UNENCRYPTED: { | |
2730 | /* HACK: | |
2731 | * | |
2732 | * wpa_supplicant calls set_wpa_enabled when the driver | |
2733 | * is loaded and unloaded, regardless of if WPA is being | |
2734 | * used. No other calls are made which can be used to | |
2735 | * determine if encryption will be used or not prior to | |
2736 | * association being expected. If encryption is not being | |
2737 | * used, drop_unencrypted is set to false, else true -- we | |
2738 | * can use this to determine if the CAP_PRIVACY_ON bit should | |
2739 | * be set. | |
2740 | */ | |
2741 | struct ieee80211_security sec = { | |
2742 | .flags = SEC_ENABLED, | |
2743 | .enabled = value, | |
2744 | }; | |
2745 | ieee->drop_unencrypted = value; | |
2746 | /* We only change SEC_LEVEL for open mode. Others | |
2747 | * are set by ipw_wpa_set_encryption. | |
2748 | */ | |
2749 | if (!value) { | |
2750 | sec.flags |= SEC_LEVEL; | |
2751 | sec.level = SEC_LEVEL_0; | |
2752 | } | |
2753 | else { | |
2754 | sec.flags |= SEC_LEVEL; | |
2755 | sec.level = SEC_LEVEL_1; | |
2756 | } | |
2757 | if (ieee->set_security) | |
2758 | ieee->set_security(ieee->dev, &sec); | |
2759 | break; | |
2760 | } | |
2761 | ||
2762 | case IEEE_PARAM_PRIVACY_INVOKED: | |
2763 | ieee->privacy_invoked=value; | |
2764 | break; | |
2765 | ||
2766 | case IEEE_PARAM_AUTH_ALGS: | |
2767 | ret = ieee80211_wpa_set_auth_algs(ieee, value); | |
2768 | break; | |
2769 | ||
2770 | case IEEE_PARAM_IEEE_802_1X: | |
2771 | ieee->ieee802_1x=value; | |
2772 | break; | |
2773 | case IEEE_PARAM_WPAX_SELECT: | |
2774 | // added for WPA2 mixed mode | |
2775 | //printk(KERN_WARNING "------------------------>wpax value = %x\n", value); | |
2776 | spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags); | |
2777 | ieee->wpax_type_set = 1; | |
2778 | ieee->wpax_type_notify = value; | |
2779 | spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags); | |
2780 | break; | |
2781 | ||
2782 | default: | |
2783 | printk("Unknown WPA param: %d\n",name); | |
2784 | ret = -EOPNOTSUPP; | |
2785 | } | |
2786 | ||
2787 | return ret; | |
2788 | } | |
2789 | ||
2790 | /* implementation borrowed from hostap driver */ | |
2791 | ||
2792 | static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee, | |
2793 | struct ieee_param *param, int param_len) | |
2794 | { | |
2795 | int ret = 0; | |
2796 | ||
2797 | struct ieee80211_crypto_ops *ops; | |
2798 | struct ieee80211_crypt_data **crypt; | |
2799 | ||
2800 | struct ieee80211_security sec = { | |
2801 | .flags = 0, | |
2802 | }; | |
2803 | ||
2804 | param->u.crypt.err = 0; | |
2805 | param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0'; | |
2806 | ||
2807 | if (param_len != | |
2808 | (int) ((char *) param->u.crypt.key - (char *) param) + | |
2809 | param->u.crypt.key_len) { | |
2810 | printk("Len mismatch %d, %d\n", param_len, | |
2811 | param->u.crypt.key_len); | |
2812 | return -EINVAL; | |
2813 | } | |
2814 | if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && | |
2815 | param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && | |
2816 | param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { | |
2817 | if (param->u.crypt.idx >= WEP_KEYS) | |
2818 | return -EINVAL; | |
2819 | crypt = &ieee->crypt[param->u.crypt.idx]; | |
2820 | } else { | |
2821 | return -EINVAL; | |
2822 | } | |
2823 | ||
2824 | if (strcmp(param->u.crypt.alg, "none") == 0) { | |
2825 | if (crypt) { | |
2826 | sec.enabled = 0; | |
2827 | // FIXME FIXME | |
2828 | //sec.encrypt = 0; | |
2829 | sec.level = SEC_LEVEL_0; | |
2830 | sec.flags |= SEC_ENABLED | SEC_LEVEL; | |
2831 | ieee80211_crypt_delayed_deinit(ieee, crypt); | |
2832 | } | |
2833 | goto done; | |
2834 | } | |
2835 | sec.enabled = 1; | |
2836 | // FIXME FIXME | |
2837 | // sec.encrypt = 1; | |
2838 | sec.flags |= SEC_ENABLED; | |
2839 | ||
2840 | /* IPW HW cannot build TKIP MIC, host decryption still needed. */ | |
2841 | if (!(ieee->host_encrypt || ieee->host_decrypt) && | |
2842 | strcmp(param->u.crypt.alg, "TKIP")) | |
2843 | goto skip_host_crypt; | |
2844 | ||
2845 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); | |
a010a337 | 2846 | if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) |
c8d86be3 | 2847 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
a010a337 | 2848 | else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) |
c8d86be3 | 2849 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
a010a337 | 2850 | else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) |
c8d86be3 | 2851 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
c8d86be3 GKH |
2852 | if (ops == NULL) { |
2853 | printk("unknown crypto alg '%s'\n", param->u.crypt.alg); | |
2854 | param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG; | |
2855 | ret = -EINVAL; | |
2856 | goto done; | |
2857 | } | |
2858 | ||
2859 | if (*crypt == NULL || (*crypt)->ops != ops) { | |
2860 | struct ieee80211_crypt_data *new_crypt; | |
2861 | ||
2862 | ieee80211_crypt_delayed_deinit(ieee, crypt); | |
2863 | ||
32414878 | 2864 | new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL); |
c8d86be3 GKH |
2865 | if (new_crypt == NULL) { |
2866 | ret = -ENOMEM; | |
2867 | goto done; | |
2868 | } | |
2869 | memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data)); | |
2870 | new_crypt->ops = ops; | |
a010a337 | 2871 | if (new_crypt->ops) |
c8d86be3 GKH |
2872 | new_crypt->priv = |
2873 | new_crypt->ops->init(param->u.crypt.idx); | |
2874 | ||
2875 | if (new_crypt->priv == NULL) { | |
2876 | kfree(new_crypt); | |
2877 | param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED; | |
2878 | ret = -EINVAL; | |
2879 | goto done; | |
2880 | } | |
2881 | ||
2882 | *crypt = new_crypt; | |
2883 | } | |
2884 | ||
2885 | if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key && | |
2886 | (*crypt)->ops->set_key(param->u.crypt.key, | |
2887 | param->u.crypt.key_len, param->u.crypt.seq, | |
2888 | (*crypt)->priv) < 0) { | |
2889 | printk("key setting failed\n"); | |
2890 | param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED; | |
2891 | ret = -EINVAL; | |
2892 | goto done; | |
2893 | } | |
2894 | ||
2895 | skip_host_crypt: | |
2896 | if (param->u.crypt.set_tx) { | |
2897 | ieee->tx_keyidx = param->u.crypt.idx; | |
2898 | sec.active_key = param->u.crypt.idx; | |
2899 | sec.flags |= SEC_ACTIVE_KEY; | |
2900 | } else | |
2901 | sec.flags &= ~SEC_ACTIVE_KEY; | |
2902 | ||
2903 | if (param->u.crypt.alg != NULL) { | |
2904 | memcpy(sec.keys[param->u.crypt.idx], | |
2905 | param->u.crypt.key, | |
2906 | param->u.crypt.key_len); | |
2907 | sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len; | |
2908 | sec.flags |= (1 << param->u.crypt.idx); | |
2909 | ||
2910 | if (strcmp(param->u.crypt.alg, "WEP") == 0) { | |
2911 | sec.flags |= SEC_LEVEL; | |
2912 | sec.level = SEC_LEVEL_1; | |
2913 | } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) { | |
2914 | sec.flags |= SEC_LEVEL; | |
2915 | sec.level = SEC_LEVEL_2; | |
2916 | } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) { | |
2917 | sec.flags |= SEC_LEVEL; | |
2918 | sec.level = SEC_LEVEL_3; | |
2919 | } | |
2920 | } | |
2921 | done: | |
2922 | if (ieee->set_security) | |
2923 | ieee->set_security(ieee->dev, &sec); | |
2924 | ||
2925 | /* Do not reset port if card is in Managed mode since resetting will | |
2926 | * generate new IEEE 802.11 authentication which may end up in looping | |
2927 | * with IEEE 802.1X. If your hardware requires a reset after WEP | |
2928 | * configuration (for example... Prism2), implement the reset_port in | |
2929 | * the callbacks structures used to initialize the 802.11 stack. */ | |
2930 | if (ieee->reset_on_keychange && | |
2931 | ieee->iw_mode != IW_MODE_INFRA && | |
2932 | ieee->reset_port && | |
2933 | ieee->reset_port(ieee->dev)) { | |
2934 | printk("reset_port failed\n"); | |
2935 | param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED; | |
2936 | return -EINVAL; | |
2937 | } | |
2938 | ||
2939 | return ret; | |
2940 | } | |
2941 | ||
2942 | int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p) | |
2943 | { | |
2944 | struct ieee_param *param; | |
2945 | int ret=0; | |
2946 | ||
2947 | down(&ieee->wx_sem); | |
2948 | //IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length); | |
2949 | ||
2950 | if (p->length < sizeof(struct ieee_param) || !p->pointer){ | |
2951 | ret = -EINVAL; | |
2952 | goto out; | |
2953 | } | |
2954 | ||
32414878 | 2955 | param = kmalloc(p->length, GFP_KERNEL); |
c8d86be3 GKH |
2956 | if (param == NULL){ |
2957 | ret = -ENOMEM; | |
2958 | goto out; | |
2959 | } | |
2960 | if (copy_from_user(param, p->pointer, p->length)) { | |
2961 | kfree(param); | |
2962 | ret = -EFAULT; | |
2963 | goto out; | |
2964 | } | |
2965 | ||
2966 | switch (param->cmd) { | |
2967 | ||
2968 | case IEEE_CMD_SET_WPA_PARAM: | |
2969 | ret = ieee80211_wpa_set_param(ieee, param->u.wpa_param.name, | |
2970 | param->u.wpa_param.value); | |
2971 | break; | |
2972 | ||
2973 | case IEEE_CMD_SET_WPA_IE: | |
2974 | ret = ieee80211_wpa_set_wpa_ie(ieee, param, p->length); | |
2975 | break; | |
2976 | ||
2977 | case IEEE_CMD_SET_ENCRYPTION: | |
2978 | ret = ieee80211_wpa_set_encryption(ieee, param, p->length); | |
2979 | break; | |
2980 | ||
2981 | case IEEE_CMD_MLME: | |
2982 | ret = ieee80211_wpa_mlme(ieee, param->u.mlme.command, | |
2983 | param->u.mlme.reason_code); | |
2984 | break; | |
2985 | ||
2986 | default: | |
2987 | printk("Unknown WPA supplicant request: %d\n",param->cmd); | |
2988 | ret = -EOPNOTSUPP; | |
2989 | break; | |
2990 | } | |
2991 | ||
2992 | if (ret == 0 && copy_to_user(p->pointer, param, p->length)) | |
2993 | ret = -EFAULT; | |
2994 | ||
2995 | kfree(param); | |
2996 | out: | |
2997 | up(&ieee->wx_sem); | |
2998 | ||
2999 | return ret; | |
3000 | } | |
3001 | ||
3002 | void notify_wx_assoc_event(struct ieee80211_device *ieee) | |
3003 | { | |
3004 | union iwreq_data wrqu; | |
3005 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
3006 | if (ieee->state == IEEE80211_LINKED) | |
3007 | memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN); | |
3008 | else | |
3009 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
3010 | wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL); | |
3011 | } |