Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame^] | 21 | #include <linux/slab.h> |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 22 | #include <linux/version.h> |
| 23 | #include <asm/uaccess.h> |
| 24 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 25 | #include "dot11d.h" |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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{ |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 207 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0]<<4); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 224 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 250 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 263 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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)); |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 291 | disass->header.frame_control = cpu_to_le16(IEEE80211_STYPE_DISASSOC); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 325 | len = ieee->current_network.ssid_len; |
| 326 | |
| 327 | rate_len = ieee80211_MFIE_rate_len(ieee); |
| 328 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 329 | skb = dev_alloc_skb(sizeof(struct ieee80211_probe_request) + |
| 330 | 2 + len + rate_len); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 351 | return skb; |
| 352 | } |
| 353 | |
| 354 | struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee); |
| 355 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 356 | void ext_ieee80211_send_beacon_wq(struct ieee80211_device *ieee) |
| 357 | { |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 417 | void ieee80211_send_probe(struct ieee80211_device *ieee) |
| 418 | { |
| 419 | struct sk_buff *skb; |
| 420 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 443 | u8 channel_map[MAX_CHANNEL_NUMBER+1]; |
| 444 | memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 445 | down(&ieee->scan_sem); |
| 446 | // printk("==================> Sync scan\n"); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 447 | |
| 448 | while(1) |
| 449 | { |
| 450 | |
| 451 | do{ |
| 452 | ch++; |
| 453 | if (ch > MAX_CHANNEL_NUMBER) |
| 454 | goto out; /* scan completed */ |
| 455 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 456 | }while(!channel_map[ch]); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 457 | /* this fuction can be called in two situations |
| 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); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 481 | if(channel_map[ch] == 1) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 499 | if(IS_DOT11D_ENABLE(ieee)) |
| 500 | DOT11D_ScanComplete(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | void ieee80211_softmac_ips_scan_syncro(struct ieee80211_device *ieee) |
| 504 | { |
| 505 | int ch; |
| 506 | unsigned int watch_dog = 0; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 507 | u8 channel_map[MAX_CHANNEL_NUMBER+1]; |
| 508 | memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | { |
| 520 | /* this fuction can be called in two situations |
| 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 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 542 | if(channel_map[ieee->current_network.channel] > 0) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 543 | { |
| 544 | ieee->set_chan(ieee->dev, ieee->current_network.channel); |
| 545 | // printk("======>channel=%d ",ieee->current_network.channel); |
| 546 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 547 | if(channel_map[ieee->current_network.channel] == 1) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 566 | }while(!channel_map[ieee->current_network.channel]); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 574 | if(IS_DOT11D_ENABLE(ieee)) |
| 575 | DOT11D_ScanComplete(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 576 | } |
| 577 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 578 | void ieee80211_softmac_scan_wq(struct work_struct *work) |
| 579 | { |
Jean Delvare | bf6aede | 2009-04-02 16:56:54 -0700 | [diff] [blame] | 580 | struct delayed_work *dwork = to_delayed_work(work); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 581 | struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 582 | static short watchdog = 0; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 583 | u8 channel_map[MAX_CHANNEL_NUMBER+1]; |
| 584 | memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 585 | // printk("ieee80211_softmac_scan_wq ENABLE_IPS\n"); |
Harvey Harrison | d599edc | 2009-01-07 14:31:57 -0800 | [diff] [blame] | 586 | // printk("in %s\n",__func__); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 595 | }while(!channel_map[ieee->current_network.channel]); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 604 | if(channel_map[ieee->current_network.channel] == 1) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 616 | if(IS_DOT11D_ENABLE(ieee)) |
| 617 | DOT11D_ScanComplete(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 618 | return; |
| 619 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 */ |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 693 | void ieee80211_rtl_start_scan(struct ieee80211_device *ieee) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 694 | { |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 695 | if(IS_DOT11D_ENABLE(ieee) ) |
| 696 | { |
| 697 | if(IS_COUNTRY_IE_VALID(ieee)) |
| 698 | { |
| 699 | RESET_CIE_WATCHDOG(ieee); |
| 700 | } |
| 701 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | { |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 721 | if(IS_DOT11D_ENABLE(ieee) ) |
| 722 | { |
| 723 | if(IS_COUNTRY_IE_VALID(ieee)) |
| 724 | { |
| 725 | RESET_CIE_WATCHDOG(ieee); |
| 726 | } |
| 727 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 909 | assoc->header.frame_control = cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 960 | memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 985 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1053 | unsigned int turbo_info_len = beacon->Turbo_Enable?9:0; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1078 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 1088 | hdr->header.frame_control = IEEE80211_STYPE_ASSOC_REQ; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1119 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1120 | tag = skb_put(skb,ieee->wpa_ie_len); |
| 1121 | memcpy(tag,ieee->wpa_ie,ieee->wpa_ie_len); |
Bartlomiej Zolnierkiewicz | 5521a51 | 2009-06-28 16:19:23 +0200 | [diff] [blame] | 1122 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1123 | tag = skb_put(skb,wmm_info_len); |
| 1124 | if(wmm_info_len) { |
| 1125 | ieee80211_WMM_Info(ieee, &tag); |
| 1126 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1127 | tag = skb_put(skb,turbo_info_len); |
| 1128 | if(turbo_info_len) { |
| 1129 | ieee80211_TURBO_Info(ieee, &tag); |
| 1130 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1131 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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. |
Harvey Harrison | d599edc | 2009-01-07 14:31:57 -0800 | [diff] [blame] | 1195 | //printk("\nIn %s,line %d call kfree skb.",__func__,__LINE__); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1196 | //dev_kfree_skb_any(skb);//edit by thomas |
| 1197 | } |
| 1198 | } |
| 1199 | |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 1200 | void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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); |
Bartlomiej Zolnierkiewicz | 0370453 | 2009-06-13 18:30:28 +0200 | [diff] [blame] | 1259 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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); |
Bartlomiej Zolnierkiewicz | 0370453 | 2009-06-13 18:30:28 +0200 | [diff] [blame] | 1294 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 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++); |
| 1438 | *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC); |
| 1439 | memcpy(*challenge, t, *chlen); |
| 1440 | } |
| 1441 | } |
| 1442 | |
| 1443 | return cpu_to_le16(a->status); |
| 1444 | |
| 1445 | } |
| 1446 | |
| 1447 | |
| 1448 | int auth_rq_parse(struct sk_buff *skb,u8* dest) |
| 1449 | { |
| 1450 | struct ieee80211_authentication *a; |
| 1451 | |
| 1452 | if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){ |
| 1453 | IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len); |
| 1454 | return -1; |
| 1455 | } |
| 1456 | a = (struct ieee80211_authentication*) skb->data; |
| 1457 | |
| 1458 | memcpy(dest,a->header.addr2, ETH_ALEN); |
| 1459 | |
| 1460 | if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN) |
| 1461 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; |
| 1462 | |
| 1463 | return WLAN_STATUS_SUCCESS; |
| 1464 | } |
| 1465 | |
| 1466 | static short probe_rq_parse(struct ieee80211_device *ieee, struct sk_buff *skb, u8 *src) |
| 1467 | { |
| 1468 | u8 *tag; |
| 1469 | u8 *skbend; |
| 1470 | u8 *ssid=NULL; |
| 1471 | u8 ssidlen = 0; |
| 1472 | |
| 1473 | struct ieee80211_hdr_3addr *header = |
| 1474 | (struct ieee80211_hdr_3addr *) skb->data; |
| 1475 | |
| 1476 | if (skb->len < sizeof (struct ieee80211_hdr_3addr )) |
| 1477 | return -1; /* corrupted */ |
| 1478 | |
| 1479 | memcpy(src,header->addr2, ETH_ALEN); |
| 1480 | |
| 1481 | skbend = (u8*)skb->data + skb->len; |
| 1482 | |
| 1483 | tag = skb->data + sizeof (struct ieee80211_hdr_3addr ); |
| 1484 | |
| 1485 | while (tag+1 < skbend){ |
| 1486 | if (*tag == 0){ |
| 1487 | ssid = tag+2; |
| 1488 | ssidlen = *(tag+1); |
| 1489 | break; |
| 1490 | } |
| 1491 | tag++; /* point to the len field */ |
| 1492 | tag = tag + *(tag); /* point to the last data byte of the tag */ |
| 1493 | tag++; /* point to the next tag */ |
| 1494 | } |
| 1495 | |
| 1496 | //IEEE80211DMESG("Card MAC address is "MACSTR, MAC2STR(src)); |
| 1497 | if (ssidlen == 0) return 1; |
| 1498 | |
| 1499 | if (!ssid) return 1; /* ssid not found in tagged param */ |
| 1500 | return (!strncmp(ssid, ieee->current_network.ssid, ssidlen)); |
| 1501 | |
| 1502 | } |
| 1503 | |
| 1504 | int assoc_rq_parse(struct sk_buff *skb,u8* dest) |
| 1505 | { |
| 1506 | struct ieee80211_assoc_request_frame *a; |
| 1507 | |
| 1508 | if (skb->len < (sizeof(struct ieee80211_assoc_request_frame) - |
| 1509 | sizeof(struct ieee80211_info_element))) { |
| 1510 | |
| 1511 | IEEE80211_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len); |
| 1512 | return -1; |
| 1513 | } |
| 1514 | |
| 1515 | a = (struct ieee80211_assoc_request_frame*) skb->data; |
| 1516 | |
| 1517 | memcpy(dest,a->header.addr2,ETH_ALEN); |
| 1518 | |
| 1519 | return 0; |
| 1520 | } |
| 1521 | |
| 1522 | static inline u16 assoc_parse(struct sk_buff *skb, int *aid) |
| 1523 | { |
| 1524 | struct ieee80211_assoc_response_frame *a; |
| 1525 | if (skb->len < sizeof(struct ieee80211_assoc_response_frame)){ |
| 1526 | IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len); |
| 1527 | return 0xcafe; |
| 1528 | } |
| 1529 | |
| 1530 | a = (struct ieee80211_assoc_response_frame*) skb->data; |
| 1531 | *aid = le16_to_cpu(a->aid) & 0x3fff; |
| 1532 | return le16_to_cpu(a->status); |
| 1533 | } |
| 1534 | |
| 1535 | static inline void |
| 1536 | ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb) |
| 1537 | { |
| 1538 | u8 dest[ETH_ALEN]; |
| 1539 | |
| 1540 | //IEEE80211DMESG("Rx probe"); |
| 1541 | ieee->softmac_stats.rx_probe_rq++; |
| 1542 | //DMESG("Dest is "MACSTR, MAC2STR(dest)); |
| 1543 | if (probe_rq_parse(ieee, skb, dest)){ |
| 1544 | //IEEE80211DMESG("Was for me!"); |
| 1545 | ieee->softmac_stats.tx_probe_rs++; |
| 1546 | ieee80211_resp_to_probe(ieee, dest); |
| 1547 | } |
| 1548 | } |
| 1549 | |
| 1550 | inline void |
| 1551 | ieee80211_rx_auth_rq(struct ieee80211_device *ieee, struct sk_buff *skb) |
| 1552 | { |
| 1553 | u8 dest[ETH_ALEN]; |
| 1554 | int status; |
| 1555 | //IEEE80211DMESG("Rx probe"); |
| 1556 | ieee->softmac_stats.rx_auth_rq++; |
| 1557 | |
| 1558 | if ((status = auth_rq_parse(skb, dest))!= -1){ |
| 1559 | ieee80211_resp_to_auth(ieee, status, dest); |
| 1560 | } |
| 1561 | //DMESG("Dest is "MACSTR, MAC2STR(dest)); |
| 1562 | |
| 1563 | } |
| 1564 | |
| 1565 | inline void |
| 1566 | ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb) |
| 1567 | { |
| 1568 | |
| 1569 | u8 dest[ETH_ALEN]; |
| 1570 | //unsigned long flags; |
| 1571 | |
| 1572 | ieee->softmac_stats.rx_ass_rq++; |
| 1573 | if (assoc_rq_parse(skb,dest) != -1){ |
| 1574 | ieee80211_resp_to_assoc_rq(ieee, dest); |
| 1575 | } |
| 1576 | |
Joe Perches | 0ee9f67 | 2009-12-06 11:34:52 -0800 | [diff] [blame] | 1577 | printk(KERN_INFO"New client associated: %pM\n", dest); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1578 | } |
| 1579 | |
| 1580 | |
| 1581 | |
| 1582 | void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr) |
| 1583 | { |
| 1584 | |
| 1585 | struct sk_buff *buf = ieee80211_null_func(ieee, pwr); |
| 1586 | |
| 1587 | if (buf) |
| 1588 | softmac_ps_mgmt_xmit(buf, ieee); |
| 1589 | |
| 1590 | } |
| 1591 | |
| 1592 | |
| 1593 | short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l) |
| 1594 | { |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1595 | int timeout = 0; |
Bartlomiej Zolnierkiewicz | 5521a51 | 2009-06-28 16:19:23 +0200 | [diff] [blame] | 1596 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1597 | u8 dtim; |
| 1598 | /*if(ieee->ps == IEEE80211_PS_DISABLED || |
| 1599 | ieee->iw_mode != IW_MODE_INFRA || |
| 1600 | ieee->state != IEEE80211_LINKED) |
| 1601 | |
| 1602 | return 0; |
| 1603 | */ |
| 1604 | dtim = ieee->current_network.dtim_data; |
| 1605 | //printk("DTIM\n"); |
| 1606 | |
| 1607 | if(!(dtim & IEEE80211_DTIM_VALID)) |
| 1608 | return 0; |
| 1609 | else |
| 1610 | timeout = ieee->current_network.beacon_interval; |
| 1611 | |
| 1612 | //printk("VALID\n"); |
| 1613 | ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID; |
| 1614 | |
| 1615 | if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps)) |
| 1616 | return 2; |
| 1617 | |
| 1618 | if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout))) |
| 1619 | return 0; |
| 1620 | |
| 1621 | if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout))) |
| 1622 | return 0; |
| 1623 | |
| 1624 | if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) && |
| 1625 | (ieee->mgmt_queue_tail != ieee->mgmt_queue_head)) |
| 1626 | return 0; |
Bartlomiej Zolnierkiewicz | 5521a51 | 2009-06-28 16:19:23 +0200 | [diff] [blame] | 1627 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1628 | if(time_l){ |
| 1629 | *time_l = ieee->current_network.last_dtim_sta_time[0] |
| 1630 | + MSECS((ieee->current_network.beacon_interval)); |
| 1631 | //* ieee->current_network.dtim_period)); |
| 1632 | //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); |
| 1633 | } |
| 1634 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1635 | if(time_h){ |
| 1636 | *time_h = ieee->current_network.last_dtim_sta_time[1]; |
| 1637 | if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0]) |
| 1638 | *time_h += 1; |
| 1639 | } |
| 1640 | |
| 1641 | return 1; |
| 1642 | |
| 1643 | |
| 1644 | } |
| 1645 | |
| 1646 | inline void ieee80211_sta_ps(struct ieee80211_device *ieee) |
| 1647 | { |
| 1648 | |
| 1649 | u32 th,tl; |
| 1650 | short sleep; |
| 1651 | |
| 1652 | unsigned long flags,flags2; |
| 1653 | |
| 1654 | spin_lock_irqsave(&ieee->lock, flags); |
| 1655 | |
| 1656 | if((ieee->ps == IEEE80211_PS_DISABLED || |
| 1657 | |
| 1658 | ieee->iw_mode != IW_MODE_INFRA || |
| 1659 | ieee->state != IEEE80211_LINKED)){ |
| 1660 | |
| 1661 | //#warning CHECK_LOCK_HERE |
| 1662 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); |
| 1663 | |
| 1664 | ieee80211_sta_wakeup(ieee, 1); |
| 1665 | |
| 1666 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); |
| 1667 | } |
| 1668 | |
| 1669 | sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl); |
Harvey Harrison | d599edc | 2009-01-07 14:31:57 -0800 | [diff] [blame] | 1670 | // printk("===>%s,%d[2 wake, 1 sleep, 0 do nothing], ieee->sta_sleep = %d\n",__func__, sleep,ieee->sta_sleep); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1671 | /* 2 wake, 1 sleep, 0 do nothing */ |
| 1672 | if(sleep == 0) |
| 1673 | goto out; |
| 1674 | |
| 1675 | if(sleep == 1){ |
| 1676 | |
| 1677 | if(ieee->sta_sleep == 1) |
| 1678 | ieee->enter_sleep_state(ieee->dev,th,tl); |
| 1679 | |
| 1680 | else if(ieee->sta_sleep == 0){ |
| 1681 | // printk("send null 1\n"); |
| 1682 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); |
| 1683 | |
| 1684 | if(ieee->ps_is_queue_empty(ieee->dev)){ |
| 1685 | |
| 1686 | |
| 1687 | ieee->sta_sleep = 2; |
| 1688 | |
| 1689 | ieee->ps_request_tx_ack(ieee->dev); |
| 1690 | |
| 1691 | ieee80211_sta_ps_send_null_frame(ieee,1); |
| 1692 | |
| 1693 | ieee->ps_th = th; |
| 1694 | ieee->ps_tl = tl; |
| 1695 | } |
| 1696 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); |
| 1697 | |
| 1698 | } |
| 1699 | |
| 1700 | |
| 1701 | }else if(sleep == 2){ |
| 1702 | //#warning CHECK_LOCK_HERE |
| 1703 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); |
| 1704 | |
| 1705 | // printk("send wakeup packet\n"); |
| 1706 | ieee80211_sta_wakeup(ieee,1); |
| 1707 | |
| 1708 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); |
| 1709 | } |
| 1710 | |
| 1711 | out: |
| 1712 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 1713 | |
| 1714 | } |
| 1715 | |
| 1716 | void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl) |
| 1717 | { |
| 1718 | if(ieee->sta_sleep == 0){ |
| 1719 | if(nl){ |
| 1720 | // printk("Warning: driver is probably failing to report TX ps error\n"); |
| 1721 | ieee->ps_request_tx_ack(ieee->dev); |
| 1722 | ieee80211_sta_ps_send_null_frame(ieee, 0); |
| 1723 | } |
| 1724 | return; |
| 1725 | |
| 1726 | } |
| 1727 | |
| 1728 | if(ieee->sta_sleep == 1) |
| 1729 | ieee->sta_wake_up(ieee->dev); |
| 1730 | |
| 1731 | ieee->sta_sleep = 0; |
| 1732 | |
| 1733 | if(nl){ |
| 1734 | ieee->ps_request_tx_ack(ieee->dev); |
| 1735 | ieee80211_sta_ps_send_null_frame(ieee, 0); |
| 1736 | } |
| 1737 | } |
| 1738 | |
| 1739 | void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success) |
| 1740 | { |
| 1741 | unsigned long flags,flags2; |
| 1742 | |
| 1743 | spin_lock_irqsave(&ieee->lock, flags); |
| 1744 | if(ieee->sta_sleep == 2){ |
| 1745 | /* Null frame with PS bit set */ |
| 1746 | if(success){ |
| 1747 | |
Harvey Harrison | d599edc | 2009-01-07 14:31:57 -0800 | [diff] [blame] | 1748 | // printk("==================> %s::enter sleep state\n",__func__); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1749 | ieee->sta_sleep = 1; |
| 1750 | ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl); |
| 1751 | } |
| 1752 | /* if the card report not success we can't be sure the AP |
| 1753 | * has not RXed so we can't assume the AP believe us awake |
| 1754 | */ |
| 1755 | } |
| 1756 | /* 21112005 - tx again null without PS bit if lost */ |
| 1757 | else { |
| 1758 | |
| 1759 | if((ieee->sta_sleep == 0) && !success){ |
| 1760 | spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); |
| 1761 | ieee80211_sta_ps_send_null_frame(ieee, 0); |
| 1762 | spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); |
| 1763 | } |
| 1764 | } |
| 1765 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 1766 | } |
| 1767 | |
| 1768 | inline int |
| 1769 | ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb, |
| 1770 | struct ieee80211_rx_stats *rx_stats, u16 type, |
| 1771 | u16 stype) |
| 1772 | { |
| 1773 | struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data; |
| 1774 | u16 errcode; |
| 1775 | u8* challenge=NULL; |
| 1776 | int chlen=0; |
| 1777 | int aid=0; |
| 1778 | struct ieee80211_assoc_response_frame *assoc_resp; |
| 1779 | struct ieee80211_info_element *info_element; |
| 1780 | |
| 1781 | if(!ieee->proto_started) |
| 1782 | return 0; |
| 1783 | |
| 1784 | if(ieee->sta_sleep || (ieee->ps != IEEE80211_PS_DISABLED && |
| 1785 | ieee->iw_mode == IW_MODE_INFRA && |
| 1786 | ieee->state == IEEE80211_LINKED)) |
| 1787 | |
| 1788 | tasklet_schedule(&ieee->ps_task); |
| 1789 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 1790 | if (WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_PROBE_RESP && |
| 1791 | WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_BEACON) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1792 | ieee->last_rx_ps_time = jiffies; |
| 1793 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 1794 | switch (WLAN_FC_GET_STYPE(header->frame_control)) { |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1795 | |
| 1796 | case IEEE80211_STYPE_ASSOC_RESP: |
| 1797 | case IEEE80211_STYPE_REASSOC_RESP: |
| 1798 | |
| 1799 | IEEE80211_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n", |
| 1800 | WLAN_FC_GET_STYPE(header->frame_ctl)); |
| 1801 | if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) && |
| 1802 | ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED && |
| 1803 | ieee->iw_mode == IW_MODE_INFRA){ |
| 1804 | if (0 == (errcode=assoc_parse(skb, &aid))){ |
| 1805 | u16 left; |
| 1806 | |
| 1807 | ieee->state=IEEE80211_LINKED; |
| 1808 | ieee->assoc_id = aid; |
| 1809 | ieee->softmac_stats.rx_ass_ok++; |
| 1810 | |
| 1811 | //printk(KERN_WARNING "nic_type = %s", (rx_stats->nic_type == 1)?"rtl8187":"rtl8187B"); |
| 1812 | if(1 == rx_stats->nic_type) //card type is 8187 |
| 1813 | { |
| 1814 | goto associate_complete; |
| 1815 | } |
| 1816 | assoc_resp = (struct ieee80211_assoc_response_frame*)skb->data; |
| 1817 | info_element = &assoc_resp->info_element; |
| 1818 | left = skb->len - ((void*)info_element - (void*)assoc_resp); |
| 1819 | |
| 1820 | while (left >= sizeof(struct ieee80211_info_element_hdr)) { |
| 1821 | if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) { |
| 1822 | printk(KERN_WARNING "[re]associate reeponse error!"); |
| 1823 | return 1; |
| 1824 | } |
| 1825 | switch (info_element->id) { |
| 1826 | case MFIE_TYPE_GENERIC: |
| 1827 | IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len); |
| 1828 | if (info_element->len >= 8 && |
| 1829 | info_element->data[0] == 0x00 && |
| 1830 | info_element->data[1] == 0x50 && |
| 1831 | info_element->data[2] == 0xf2 && |
| 1832 | info_element->data[3] == 0x02 && |
| 1833 | info_element->data[4] == 0x01) { |
| 1834 | // Not care about version at present. |
| 1835 | //WMM Parameter Element |
| 1836 | memcpy(ieee->current_network.wmm_param,(u8*)(info_element->data\ |
| 1837 | + 8),(info_element->len - 8)); |
| 1838 | |
| 1839 | if (((ieee->current_network.wmm_info^info_element->data[6])& \ |
| 1840 | 0x0f)||(!ieee->init_wmmparam_flag)) { |
André Goddard Rosa | bbc9a99 | 2009-11-14 13:09:06 -0200 | [diff] [blame] | 1841 | // refresh parameter element for current network |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1842 | // update the register parameter for hardware |
| 1843 | ieee->init_wmmparam_flag = 1; |
| 1844 | queue_work(ieee->wq, &ieee->wmm_param_update_wq); |
| 1845 | |
| 1846 | } |
| 1847 | //update info_element for current network |
| 1848 | ieee->current_network.wmm_info = info_element->data[6]; |
| 1849 | } |
| 1850 | break; |
| 1851 | default: |
| 1852 | //nothing to do at present!!! |
| 1853 | break; |
| 1854 | } |
| 1855 | |
| 1856 | left -= sizeof(struct ieee80211_info_element_hdr) + |
| 1857 | info_element->len; |
| 1858 | info_element = (struct ieee80211_info_element *) |
| 1859 | &info_element->data[info_element->len]; |
| 1860 | } |
| 1861 | if(!ieee->init_wmmparam_flag) //legacy AP, reset the AC_xx_param register |
| 1862 | { |
| 1863 | queue_work(ieee->wq,&ieee->wmm_param_update_wq); |
| 1864 | ieee->init_wmmparam_flag = 1;//indicate AC_xx_param upated since last associate |
| 1865 | } |
| 1866 | associate_complete: |
| 1867 | ieee80211_associate_complete(ieee); |
| 1868 | }else{ |
| 1869 | ieee->softmac_stats.rx_ass_err++; |
| 1870 | IEEE80211_DEBUG_MGMT( |
| 1871 | "Association response status code 0x%x\n", |
| 1872 | errcode); |
| 1873 | ieee80211_associate_abort(ieee); |
| 1874 | } |
| 1875 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1876 | break; |
| 1877 | |
| 1878 | case IEEE80211_STYPE_ASSOC_REQ: |
| 1879 | case IEEE80211_STYPE_REASSOC_REQ: |
| 1880 | |
| 1881 | if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) && |
| 1882 | ieee->iw_mode == IW_MODE_MASTER) |
| 1883 | |
| 1884 | ieee80211_rx_assoc_rq(ieee, skb); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1885 | break; |
| 1886 | |
| 1887 | case IEEE80211_STYPE_AUTH: |
| 1888 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1889 | if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){ |
| 1890 | if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING && |
| 1891 | ieee->iw_mode == IW_MODE_INFRA){ |
| 1892 | |
| 1893 | IEEE80211_DEBUG_MGMT("Received authentication response"); |
| 1894 | |
| 1895 | if (0 == (errcode=auth_parse(skb, &challenge, &chlen))){ |
| 1896 | if(ieee->open_wep || !challenge){ |
| 1897 | ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED; |
| 1898 | ieee->softmac_stats.rx_auth_rs_ok++; |
| 1899 | |
| 1900 | ieee80211_associate_step2(ieee); |
| 1901 | }else{ |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 1902 | ieee80211_rtl_auth_challenge(ieee, challenge, chlen); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1903 | } |
| 1904 | }else{ |
| 1905 | ieee->softmac_stats.rx_auth_rs_err++; |
| 1906 | IEEE80211_DEBUG_MGMT("Authentication respose status code 0x%x",errcode); |
| 1907 | ieee80211_associate_abort(ieee); |
| 1908 | } |
| 1909 | |
| 1910 | }else if (ieee->iw_mode == IW_MODE_MASTER){ |
| 1911 | ieee80211_rx_auth_rq(ieee, skb); |
| 1912 | } |
| 1913 | } |
| 1914 | break; |
| 1915 | |
| 1916 | case IEEE80211_STYPE_PROBE_REQ: |
| 1917 | |
| 1918 | if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) && |
| 1919 | ((ieee->iw_mode == IW_MODE_ADHOC || |
| 1920 | ieee->iw_mode == IW_MODE_MASTER) && |
| 1921 | ieee->state == IEEE80211_LINKED)) |
| 1922 | |
| 1923 | ieee80211_rx_probe_rq(ieee, skb); |
| 1924 | break; |
| 1925 | |
| 1926 | case IEEE80211_STYPE_DISASSOC: |
| 1927 | case IEEE80211_STYPE_DEAUTH: |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1928 | /* FIXME for now repeat all the association procedure |
| 1929 | * both for disassociation and deauthentication |
| 1930 | */ |
| 1931 | if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) && |
| 1932 | (ieee->state == IEEE80211_LINKED) && |
| 1933 | (ieee->iw_mode == IW_MODE_INFRA) && |
| 1934 | (!memcmp(header->addr2,ieee->current_network.bssid,ETH_ALEN))){ |
| 1935 | ieee->state = IEEE80211_ASSOCIATING; |
| 1936 | ieee->softmac_stats.reassoc++; |
| 1937 | |
| 1938 | //notify_wx_assoc_event(ieee); //YJ,del,080828, do not notify os here |
| 1939 | queue_work(ieee->wq, &ieee->associate_procedure_wq); |
| 1940 | } |
| 1941 | |
| 1942 | break; |
| 1943 | |
| 1944 | default: |
| 1945 | return -1; |
| 1946 | break; |
| 1947 | } |
| 1948 | |
| 1949 | //dev_kfree_skb_any(skb); |
| 1950 | return 0; |
| 1951 | } |
| 1952 | |
| 1953 | |
| 1954 | |
| 1955 | /* following are for a simplier TX queue management. |
| 1956 | * Instead of using netif_[stop/wake]_queue the driver |
| 1957 | * will uses these two function (plus a reset one), that |
| 1958 | * will internally uses the kernel netif_* and takes |
| 1959 | * care of the ieee802.11 fragmentation. |
| 1960 | * So the driver receives a fragment per time and might |
| 1961 | * call the stop function when it want without take care |
André Goddard Rosa | bbc9a99 | 2009-11-14 13:09:06 -0200 | [diff] [blame] | 1962 | * to have enough room to TX an entire packet. |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1963 | * This might be useful if each fragment need it's own |
| 1964 | * descriptor, thus just keep a total free memory > than |
André Goddard Rosa | bbc9a99 | 2009-11-14 13:09:06 -0200 | [diff] [blame] | 1965 | * the max fragmentation threshold is not enough.. If the |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1966 | * ieee802.11 stack passed a TXB struct then you needed |
| 1967 | * to keep N free descriptors where |
| 1968 | * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD |
| 1969 | * In this way you need just one and the 802.11 stack |
| 1970 | * will take care of buffering fragments and pass them to |
| 1971 | * to the driver later, when it wakes the queue. |
| 1972 | */ |
| 1973 | |
| 1974 | void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee) |
| 1975 | { |
| 1976 | |
| 1977 | |
| 1978 | unsigned long flags; |
| 1979 | int i; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1980 | |
| 1981 | spin_lock_irqsave(&ieee->lock,flags); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1982 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1983 | /* called with 2nd parm 0, no tx mgmt lock required */ |
| 1984 | ieee80211_sta_wakeup(ieee,0); |
| 1985 | |
| 1986 | for(i = 0; i < txb->nr_frags; i++) { |
| 1987 | |
| 1988 | if (ieee->queue_stop){ |
| 1989 | ieee->tx_pending.txb = txb; |
| 1990 | ieee->tx_pending.frag = i; |
| 1991 | goto exit; |
| 1992 | }else{ |
| 1993 | ieee->softmac_data_hard_start_xmit( |
| 1994 | txb->fragments[i], |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1995 | ieee->dev,ieee->rate); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1996 | //(i+1)<txb->nr_frags); |
| 1997 | ieee->stats.tx_packets++; |
| 1998 | ieee->stats.tx_bytes += txb->fragments[i]->len; |
| 1999 | ieee->dev->trans_start = jiffies; |
| 2000 | } |
| 2001 | } |
| 2002 | |
| 2003 | ieee80211_txb_free(txb); |
| 2004 | |
| 2005 | exit: |
| 2006 | spin_unlock_irqrestore(&ieee->lock,flags); |
| 2007 | |
| 2008 | } |
| 2009 | |
| 2010 | /* called with ieee->lock acquired */ |
| 2011 | void ieee80211_resume_tx(struct ieee80211_device *ieee) |
| 2012 | { |
| 2013 | int i; |
| 2014 | for(i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) { |
| 2015 | |
| 2016 | if (ieee->queue_stop){ |
| 2017 | ieee->tx_pending.frag = i; |
| 2018 | return; |
| 2019 | }else{ |
| 2020 | |
| 2021 | ieee->softmac_data_hard_start_xmit( |
| 2022 | ieee->tx_pending.txb->fragments[i], |
| 2023 | ieee->dev,ieee->rate); |
| 2024 | //(i+1)<ieee->tx_pending.txb->nr_frags); |
| 2025 | ieee->stats.tx_packets++; |
| 2026 | ieee->dev->trans_start = jiffies; |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | |
| 2031 | ieee80211_txb_free(ieee->tx_pending.txb); |
| 2032 | ieee->tx_pending.txb = NULL; |
| 2033 | } |
| 2034 | |
| 2035 | |
| 2036 | void ieee80211_reset_queue(struct ieee80211_device *ieee) |
| 2037 | { |
| 2038 | unsigned long flags; |
| 2039 | |
| 2040 | spin_lock_irqsave(&ieee->lock,flags); |
| 2041 | init_mgmt_queue(ieee); |
| 2042 | if (ieee->tx_pending.txb){ |
| 2043 | ieee80211_txb_free(ieee->tx_pending.txb); |
| 2044 | ieee->tx_pending.txb = NULL; |
| 2045 | } |
| 2046 | ieee->queue_stop = 0; |
| 2047 | spin_unlock_irqrestore(&ieee->lock,flags); |
| 2048 | |
| 2049 | } |
| 2050 | |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 2051 | void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2052 | { |
| 2053 | |
| 2054 | unsigned long flags; |
| 2055 | struct sk_buff *skb; |
| 2056 | struct ieee80211_hdr_3addr *header; |
| 2057 | |
| 2058 | spin_lock_irqsave(&ieee->lock,flags); |
| 2059 | if (! ieee->queue_stop) goto exit; |
| 2060 | |
| 2061 | ieee->queue_stop = 0; |
| 2062 | |
| 2063 | if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){ |
| 2064 | while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){ |
| 2065 | |
| 2066 | header = (struct ieee80211_hdr_3addr *) skb->data; |
| 2067 | |
Larry Finger | b6b1ac6 | 2010-01-14 13:13:47 -0600 | [diff] [blame] | 2068 | header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2069 | |
| 2070 | if (ieee->seq_ctrl[0] == 0xFFF) |
| 2071 | ieee->seq_ctrl[0] = 0; |
| 2072 | else |
| 2073 | ieee->seq_ctrl[0]++; |
| 2074 | |
| 2075 | //printk(KERN_ALERT "ieee80211_wake_queue \n"); |
| 2076 | ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate); |
| 2077 | dev_kfree_skb_any(skb);//edit by thomas |
| 2078 | } |
| 2079 | } |
| 2080 | if (!ieee->queue_stop && ieee->tx_pending.txb) |
| 2081 | ieee80211_resume_tx(ieee); |
| 2082 | |
| 2083 | if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){ |
| 2084 | ieee->softmac_stats.swtxawake++; |
| 2085 | netif_wake_queue(ieee->dev); |
| 2086 | } |
| 2087 | |
| 2088 | exit : |
| 2089 | spin_unlock_irqrestore(&ieee->lock,flags); |
| 2090 | } |
| 2091 | |
| 2092 | |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 2093 | void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2094 | { |
| 2095 | //unsigned long flags; |
| 2096 | //spin_lock_irqsave(&ieee->lock,flags); |
| 2097 | |
| 2098 | if (! netif_queue_stopped(ieee->dev)){ |
| 2099 | netif_stop_queue(ieee->dev); |
| 2100 | ieee->softmac_stats.swtxstop++; |
| 2101 | } |
| 2102 | ieee->queue_stop = 1; |
| 2103 | //spin_unlock_irqrestore(&ieee->lock,flags); |
| 2104 | |
| 2105 | } |
| 2106 | |
| 2107 | |
| 2108 | inline void ieee80211_randomize_cell(struct ieee80211_device *ieee) |
| 2109 | { |
| 2110 | |
| 2111 | get_random_bytes(ieee->current_network.bssid, ETH_ALEN); |
| 2112 | |
| 2113 | /* an IBSS cell address must have the two less significant |
| 2114 | * bits of the first byte = 2 |
| 2115 | */ |
| 2116 | ieee->current_network.bssid[0] &= ~0x01; |
| 2117 | ieee->current_network.bssid[0] |= 0x02; |
| 2118 | } |
| 2119 | |
| 2120 | /* called in user context only */ |
| 2121 | void ieee80211_start_master_bss(struct ieee80211_device *ieee) |
| 2122 | { |
| 2123 | ieee->assoc_id = 1; |
| 2124 | |
| 2125 | if (ieee->current_network.ssid_len == 0){ |
| 2126 | strncpy(ieee->current_network.ssid, |
| 2127 | IEEE80211_DEFAULT_TX_ESSID, |
| 2128 | IW_ESSID_MAX_SIZE); |
| 2129 | |
| 2130 | ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID); |
| 2131 | ieee->ssid_set = 1; |
| 2132 | } |
| 2133 | |
| 2134 | memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN); |
| 2135 | |
| 2136 | ieee->set_chan(ieee->dev, ieee->current_network.channel); |
| 2137 | ieee->state = IEEE80211_LINKED; |
| 2138 | ieee->link_change(ieee->dev); |
| 2139 | notify_wx_assoc_event(ieee); |
| 2140 | |
| 2141 | if (ieee->data_hard_resume) |
| 2142 | ieee->data_hard_resume(ieee->dev); |
| 2143 | |
| 2144 | netif_carrier_on(ieee->dev); |
| 2145 | } |
| 2146 | |
| 2147 | void ieee80211_start_monitor_mode(struct ieee80211_device *ieee) |
| 2148 | { |
| 2149 | if(ieee->raw_tx){ |
| 2150 | |
| 2151 | if (ieee->data_hard_resume) |
| 2152 | ieee->data_hard_resume(ieee->dev); |
| 2153 | |
| 2154 | netif_carrier_on(ieee->dev); |
| 2155 | } |
| 2156 | } |
Bartlomiej Zolnierkiewicz | 0370453 | 2009-06-13 18:30:28 +0200 | [diff] [blame] | 2157 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2158 | void ieee80211_start_ibss_wq(struct work_struct *work) |
| 2159 | { |
Jean Delvare | bf6aede | 2009-04-02 16:56:54 -0700 | [diff] [blame] | 2160 | struct delayed_work *dwork = to_delayed_work(work); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2161 | struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, start_ibss_wq); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2162 | |
| 2163 | /* iwconfig mode ad-hoc will schedule this and return |
| 2164 | * on the other hand this will block further iwconfig SET |
| 2165 | * operations because of the wx_sem hold. |
| 2166 | * Anyway some most set operations set a flag to speed-up |
| 2167 | * (abort) this wq (when syncro scanning) before sleeping |
| 2168 | * on the semaphore |
| 2169 | */ |
| 2170 | |
| 2171 | down(&ieee->wx_sem); |
| 2172 | |
| 2173 | |
| 2174 | if (ieee->current_network.ssid_len == 0){ |
| 2175 | strcpy(ieee->current_network.ssid,IEEE80211_DEFAULT_TX_ESSID); |
| 2176 | ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID); |
| 2177 | ieee->ssid_set = 1; |
| 2178 | } |
| 2179 | |
| 2180 | /* check if we have this cell in our network list */ |
| 2181 | ieee80211_softmac_check_all_nets(ieee); |
| 2182 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2183 | if(ieee->state == IEEE80211_NOLINK) |
| 2184 | ieee->current_network.channel = 10; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2185 | /* if not then the state is not linked. Maybe the user swithced to |
| 2186 | * ad-hoc mode just after being in monitor mode, or just after |
| 2187 | * being very few time in managed mode (so the card have had no |
| 2188 | * time to scan all the chans..) or we have just run up the iface |
| 2189 | * after setting ad-hoc mode. So we have to give another try.. |
| 2190 | * Here, in ibss mode, should be safe to do this without extra care |
| 2191 | * (in bss mode we had to make sure no-one tryed to associate when |
| 2192 | * we had just checked the ieee->state and we was going to start the |
| 2193 | * scan) beacause in ibss mode the ieee80211_new_net function, when |
| 2194 | * finds a good net, just set the ieee->state to IEEE80211_LINKED, |
| 2195 | * so, at worst, we waste a bit of time to initiate an unneeded syncro |
| 2196 | * scan, that will stop at the first round because it sees the state |
| 2197 | * associated. |
| 2198 | */ |
| 2199 | if (ieee->state == IEEE80211_NOLINK) |
| 2200 | ieee80211_start_scan_syncro(ieee); |
| 2201 | |
| 2202 | /* the network definitively is not here.. create a new cell */ |
| 2203 | if (ieee->state == IEEE80211_NOLINK){ |
| 2204 | printk("creating new IBSS cell\n"); |
| 2205 | if(!ieee->wap_set) |
| 2206 | ieee80211_randomize_cell(ieee); |
| 2207 | |
| 2208 | if(ieee->modulation & IEEE80211_CCK_MODULATION){ |
| 2209 | |
| 2210 | ieee->current_network.rates_len = 4; |
| 2211 | |
| 2212 | ieee->current_network.rates[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; |
| 2213 | ieee->current_network.rates[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; |
| 2214 | ieee->current_network.rates[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB; |
| 2215 | ieee->current_network.rates[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB; |
| 2216 | |
| 2217 | }else |
| 2218 | ieee->current_network.rates_len = 0; |
| 2219 | |
| 2220 | if(ieee->modulation & IEEE80211_OFDM_MODULATION){ |
| 2221 | ieee->current_network.rates_ex_len = 8; |
| 2222 | |
| 2223 | ieee->current_network.rates_ex[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB; |
| 2224 | ieee->current_network.rates_ex[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB; |
| 2225 | ieee->current_network.rates_ex[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB; |
| 2226 | ieee->current_network.rates_ex[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB; |
| 2227 | ieee->current_network.rates_ex[4] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB; |
| 2228 | ieee->current_network.rates_ex[5] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB; |
| 2229 | ieee->current_network.rates_ex[6] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB; |
| 2230 | ieee->current_network.rates_ex[7] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB; |
| 2231 | |
| 2232 | ieee->rate = 540; |
| 2233 | }else{ |
| 2234 | ieee->current_network.rates_ex_len = 0; |
| 2235 | ieee->rate = 110; |
| 2236 | } |
| 2237 | |
| 2238 | // By default, WMM function will be disabled in IBSS mode |
| 2239 | ieee->current_network.QoS_Enable = 0; |
| 2240 | |
| 2241 | ieee->current_network.atim_window = 0; |
| 2242 | ieee->current_network.capability = WLAN_CAPABILITY_IBSS; |
| 2243 | if(ieee->short_slot) |
| 2244 | ieee->current_network.capability |= WLAN_CAPABILITY_SHORT_SLOT; |
| 2245 | |
| 2246 | } |
| 2247 | |
| 2248 | ieee->state = IEEE80211_LINKED; |
| 2249 | ieee->set_chan(ieee->dev, ieee->current_network.channel); |
| 2250 | ieee->link_change(ieee->dev); |
| 2251 | |
| 2252 | notify_wx_assoc_event(ieee); |
| 2253 | |
| 2254 | ieee80211_start_send_beacons(ieee); |
| 2255 | printk(KERN_WARNING "after sending beacon packet!\n"); |
| 2256 | |
| 2257 | if (ieee->data_hard_resume) |
| 2258 | ieee->data_hard_resume(ieee->dev); |
| 2259 | |
| 2260 | netif_carrier_on(ieee->dev); |
| 2261 | |
| 2262 | up(&ieee->wx_sem); |
| 2263 | } |
| 2264 | inline void ieee80211_start_ibss(struct ieee80211_device *ieee) |
| 2265 | { |
| 2266 | queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 100); |
| 2267 | } |
| 2268 | |
| 2269 | /* this is called only in user context, with wx_sem held */ |
| 2270 | void ieee80211_start_bss(struct ieee80211_device *ieee) |
| 2271 | { |
| 2272 | unsigned long flags; |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2273 | // |
| 2274 | // Ref: 802.11d 11.1.3.3 |
| 2275 | // STA shall not start a BSS unless properly formed Beacon frame including a Country IE. |
| 2276 | // |
| 2277 | if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) |
| 2278 | { |
| 2279 | if(! ieee->bGlobalDomain) |
| 2280 | { |
| 2281 | return; |
| 2282 | } |
| 2283 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2284 | /* check if we have already found the net we |
| 2285 | * are interested in (if any). |
| 2286 | * if not (we are disassociated and we are not |
| 2287 | * in associating / authenticating phase) start the background scanning. |
| 2288 | */ |
| 2289 | ieee80211_softmac_check_all_nets(ieee); |
| 2290 | |
| 2291 | /* ensure no-one start an associating process (thus setting |
| 2292 | * the ieee->state to ieee80211_ASSOCIATING) while we |
| 2293 | * have just cheked it and we are going to enable scan. |
| 2294 | * The ieee80211_new_net function is always called with |
| 2295 | * lock held (from both ieee80211_softmac_check_all_nets and |
| 2296 | * the rx path), so we cannot be in the middle of such function |
| 2297 | */ |
| 2298 | spin_lock_irqsave(&ieee->lock, flags); |
| 2299 | |
| 2300 | //#ifdef ENABLE_IPS |
| 2301 | // printk("start bss ENABLE_IPS\n"); |
| 2302 | //#else |
| 2303 | if (ieee->state == IEEE80211_NOLINK){ |
| 2304 | ieee->actscanning = true; |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 2305 | ieee80211_rtl_start_scan(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2306 | } |
| 2307 | //#endif |
| 2308 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 2309 | } |
| 2310 | |
| 2311 | /* called only in userspace context */ |
| 2312 | void ieee80211_disassociate(struct ieee80211_device *ieee) |
| 2313 | { |
| 2314 | netif_carrier_off(ieee->dev); |
| 2315 | |
| 2316 | if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) |
| 2317 | ieee80211_reset_queue(ieee); |
| 2318 | |
| 2319 | if (ieee->data_hard_stop) |
| 2320 | ieee->data_hard_stop(ieee->dev); |
| 2321 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2322 | if(IS_DOT11D_ENABLE(ieee)) |
| 2323 | Dot11d_Reset(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2324 | ieee->state = IEEE80211_NOLINK; |
| 2325 | ieee->link_change(ieee->dev); |
| 2326 | notify_wx_assoc_event(ieee); |
| 2327 | |
| 2328 | } |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2329 | void ieee80211_associate_retry_wq(struct work_struct *work) |
| 2330 | { |
Jean Delvare | bf6aede | 2009-04-02 16:56:54 -0700 | [diff] [blame] | 2331 | struct delayed_work *dwork = to_delayed_work(work); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2332 | struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, associate_retry_wq); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2333 | unsigned long flags; |
| 2334 | down(&ieee->wx_sem); |
| 2335 | if(!ieee->proto_started) |
| 2336 | goto exit; |
| 2337 | if(ieee->state != IEEE80211_ASSOCIATING_RETRY) |
| 2338 | goto exit; |
| 2339 | /* until we do not set the state to IEEE80211_NOLINK |
| 2340 | * there are no possibility to have someone else trying |
| 2341 | * to start an association procdure (we get here with |
| 2342 | * ieee->state = IEEE80211_ASSOCIATING). |
| 2343 | * When we set the state to IEEE80211_NOLINK it is possible |
| 2344 | * that the RX path run an attempt to associate, but |
| 2345 | * both ieee80211_softmac_check_all_nets and the |
| 2346 | * RX path works with ieee->lock held so there are no |
| 2347 | * problems. If we are still disassociated then start a scan. |
| 2348 | * the lock here is necessary to ensure no one try to start |
| 2349 | * an association procedure when we have just checked the |
| 2350 | * state and we are going to start the scan. |
| 2351 | */ |
| 2352 | ieee->state = IEEE80211_NOLINK; |
| 2353 | ieee->beinretry = true; |
| 2354 | ieee80211_softmac_check_all_nets(ieee); |
| 2355 | |
| 2356 | spin_lock_irqsave(&ieee->lock, flags); |
| 2357 | |
| 2358 | if(ieee->state == IEEE80211_NOLINK){ |
| 2359 | ieee->beinretry = false; |
| 2360 | ieee->actscanning = true; |
George Kadianakis | df574b8 | 2009-12-17 01:16:00 +0200 | [diff] [blame] | 2361 | ieee80211_rtl_start_scan(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2362 | } |
| 2363 | //YJ,add,080828, notify os here |
| 2364 | if(ieee->state == IEEE80211_NOLINK) |
| 2365 | { |
| 2366 | notify_wx_assoc_event(ieee); |
| 2367 | } |
| 2368 | //YJ,add,080828,end |
| 2369 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 2370 | |
| 2371 | exit: |
| 2372 | up(&ieee->wx_sem); |
| 2373 | } |
| 2374 | |
| 2375 | struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee) |
| 2376 | { |
| 2377 | u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff}; |
| 2378 | |
| 2379 | struct sk_buff *skb = NULL; |
| 2380 | struct ieee80211_probe_response *b; |
| 2381 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2382 | skb = ieee80211_probe_resp(ieee, broadcast_addr); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2383 | if (!skb) |
| 2384 | return NULL; |
| 2385 | |
| 2386 | b = (struct ieee80211_probe_response *) skb->data; |
| 2387 | b->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_BEACON); |
| 2388 | |
| 2389 | return skb; |
| 2390 | |
| 2391 | } |
| 2392 | |
| 2393 | struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee) |
| 2394 | { |
| 2395 | struct sk_buff *skb; |
| 2396 | struct ieee80211_probe_response *b; |
| 2397 | |
| 2398 | skb = ieee80211_get_beacon_(ieee); |
| 2399 | if(!skb) |
| 2400 | return NULL; |
| 2401 | |
| 2402 | b = (struct ieee80211_probe_response *) skb->data; |
| 2403 | b->header.seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4); |
| 2404 | |
| 2405 | if (ieee->seq_ctrl[0] == 0xFFF) |
| 2406 | ieee->seq_ctrl[0] = 0; |
| 2407 | else |
| 2408 | ieee->seq_ctrl[0]++; |
| 2409 | |
| 2410 | return skb; |
| 2411 | } |
| 2412 | |
| 2413 | void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee) |
| 2414 | { |
| 2415 | ieee->sync_scan_hurryup = 1; |
| 2416 | down(&ieee->wx_sem); |
| 2417 | ieee80211_stop_protocol(ieee); |
| 2418 | up(&ieee->wx_sem); |
| 2419 | } |
| 2420 | |
| 2421 | |
| 2422 | void ieee80211_stop_protocol(struct ieee80211_device *ieee) |
| 2423 | { |
| 2424 | if (!ieee->proto_started) |
| 2425 | return; |
| 2426 | |
| 2427 | ieee->proto_started = 0; |
| 2428 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2429 | ieee80211_stop_send_beacons(ieee); |
| 2430 | if((ieee->iw_mode == IW_MODE_INFRA)&&(ieee->state == IEEE80211_LINKED)) { |
| 2431 | SendDisassociation(ieee,NULL,WLAN_REASON_DISASSOC_STA_HAS_LEFT); |
| 2432 | } |
| 2433 | del_timer_sync(&ieee->associate_timer); |
| 2434 | cancel_delayed_work(&ieee->associate_retry_wq); |
| 2435 | cancel_delayed_work(&ieee->start_ibss_wq); |
| 2436 | ieee80211_stop_scan(ieee); |
| 2437 | |
| 2438 | ieee80211_disassociate(ieee); |
| 2439 | } |
| 2440 | |
| 2441 | void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee) |
| 2442 | { |
| 2443 | ieee->sync_scan_hurryup = 0; |
| 2444 | down(&ieee->wx_sem); |
| 2445 | ieee80211_start_protocol(ieee); |
| 2446 | up(&ieee->wx_sem); |
| 2447 | } |
| 2448 | |
| 2449 | void ieee80211_start_protocol(struct ieee80211_device *ieee) |
| 2450 | { |
| 2451 | short ch = 0; |
| 2452 | int i = 0; |
| 2453 | |
| 2454 | if (ieee->proto_started) |
| 2455 | return; |
| 2456 | |
| 2457 | ieee->proto_started = 1; |
| 2458 | |
| 2459 | if (ieee->current_network.channel == 0){ |
| 2460 | do{ |
| 2461 | ch++; |
| 2462 | if (ch > MAX_CHANNEL_NUMBER) |
| 2463 | return; /* no channel found */ |
| 2464 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2465 | }while(!GET_DOT11D_INFO(ieee)->channel_map[ch]); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2466 | |
| 2467 | ieee->current_network.channel = ch; |
| 2468 | } |
| 2469 | |
| 2470 | if (ieee->current_network.beacon_interval == 0) |
| 2471 | ieee->current_network.beacon_interval = 100; |
| 2472 | ieee->set_chan(ieee->dev,ieee->current_network.channel); |
| 2473 | |
| 2474 | for(i = 0; i < 17; i++) { |
| 2475 | ieee->last_rxseq_num[i] = -1; |
| 2476 | ieee->last_rxfrag_num[i] = -1; |
| 2477 | ieee->last_packet_time[i] = 0; |
| 2478 | } |
| 2479 | |
| 2480 | ieee->init_wmmparam_flag = 0;//reinitialize AC_xx_PARAM registers. |
| 2481 | |
| 2482 | |
| 2483 | /* if the user set the MAC of the ad-hoc cell and then |
| 2484 | * switch to managed mode, shall we make sure that association |
| 2485 | * attempts does not fail just because the user provide the essid |
| 2486 | * and the nic is still checking for the AP MAC ?? |
| 2487 | */ |
| 2488 | switch (ieee->iw_mode) { |
| 2489 | case IW_MODE_AUTO: |
| 2490 | ieee->iw_mode = IW_MODE_INFRA; |
| 2491 | //not set break here intentionly |
| 2492 | case IW_MODE_INFRA: |
| 2493 | ieee80211_start_bss(ieee); |
| 2494 | break; |
| 2495 | |
| 2496 | case IW_MODE_ADHOC: |
| 2497 | ieee80211_start_ibss(ieee); |
| 2498 | break; |
| 2499 | |
| 2500 | case IW_MODE_MASTER: |
| 2501 | ieee80211_start_master_bss(ieee); |
| 2502 | break; |
| 2503 | |
| 2504 | case IW_MODE_MONITOR: |
| 2505 | ieee80211_start_monitor_mode(ieee); |
| 2506 | break; |
| 2507 | |
| 2508 | default: |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2509 | ieee->iw_mode = IW_MODE_INFRA; |
| 2510 | ieee80211_start_bss(ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2511 | break; |
| 2512 | } |
| 2513 | } |
| 2514 | |
| 2515 | |
| 2516 | #define DRV_NAME "Ieee80211" |
| 2517 | void ieee80211_softmac_init(struct ieee80211_device *ieee) |
| 2518 | { |
| 2519 | int i; |
| 2520 | memset(&ieee->current_network, 0, sizeof(struct ieee80211_network)); |
| 2521 | |
| 2522 | ieee->state = IEEE80211_NOLINK; |
| 2523 | ieee->sync_scan_hurryup = 0; |
| 2524 | for(i = 0; i < 5; i++) { |
| 2525 | ieee->seq_ctrl[i] = 0; |
| 2526 | } |
| 2527 | |
| 2528 | ieee->assoc_id = 0; |
| 2529 | ieee->queue_stop = 0; |
| 2530 | ieee->scanning = 0; |
| 2531 | ieee->softmac_features = 0; //so IEEE2100-like driver are happy |
| 2532 | ieee->wap_set = 0; |
| 2533 | ieee->ssid_set = 0; |
| 2534 | ieee->proto_started = 0; |
| 2535 | ieee->basic_rate = IEEE80211_DEFAULT_BASIC_RATE; |
| 2536 | ieee->rate = 3; |
| 2537 | //#ifdef ENABLE_LPS |
| 2538 | ieee->ps = IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST; |
| 2539 | //#else |
| 2540 | // ieee->ps = IEEE80211_PS_DISABLED; |
| 2541 | //#endif |
| 2542 | ieee->sta_sleep = 0; |
| 2543 | //by amy |
| 2544 | ieee->bInactivePs = false; |
| 2545 | ieee->actscanning = false; |
| 2546 | ieee->ListenInterval = 2; |
| 2547 | ieee->NumRxDataInPeriod = 0; //YJ,add,080828 |
| 2548 | ieee->NumRxBcnInPeriod = 0; //YJ,add,080828 |
| 2549 | ieee->NumRxOkTotal = 0;//+by amy 080312 |
| 2550 | ieee->NumRxUnicast = 0;//YJ,add,080828,for keep alive |
| 2551 | ieee->beinretry = false; |
| 2552 | ieee->bHwRadioOff = false; |
| 2553 | //by amy |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2554 | |
| 2555 | init_mgmt_queue(ieee); |
Bartlomiej Zolnierkiewicz | 5521a51 | 2009-06-28 16:19:23 +0200 | [diff] [blame] | 2556 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2557 | ieee->tx_pending.txb = NULL; |
| 2558 | |
| 2559 | init_timer(&ieee->associate_timer); |
| 2560 | ieee->associate_timer.data = (unsigned long)ieee; |
| 2561 | ieee->associate_timer.function = ieee80211_associate_abort_cb; |
| 2562 | |
| 2563 | init_timer(&ieee->beacon_timer); |
| 2564 | ieee->beacon_timer.data = (unsigned long) ieee; |
| 2565 | ieee->beacon_timer.function = ieee80211_send_beacon_cb; |
| 2566 | |
| 2567 | #ifdef PF_SYNCTHREAD |
| 2568 | ieee->wq = create_workqueue(DRV_NAME,0); |
| 2569 | #else |
| 2570 | ieee->wq = create_workqueue(DRV_NAME); |
| 2571 | #endif |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2572 | INIT_DELAYED_WORK(&ieee->start_ibss_wq,(void*) ieee80211_start_ibss_wq); |
| 2573 | INIT_WORK(&ieee->associate_complete_wq,(void*) ieee80211_associate_complete_wq); |
| 2574 | INIT_WORK(&ieee->associate_procedure_wq,(void*) ieee80211_associate_procedure_wq); |
| 2575 | INIT_DELAYED_WORK(&ieee->softmac_scan_wq,(void*) ieee80211_softmac_scan_wq); |
| 2576 | INIT_DELAYED_WORK(&ieee->associate_retry_wq,(void*) ieee80211_associate_retry_wq); |
| 2577 | INIT_WORK(&ieee->wx_sync_scan_wq,(void*) ieee80211_wx_sync_scan_wq); |
| 2578 | // INIT_WORK(&ieee->watch_dog_wq,(void*) ieee80211_watch_dog_wq); |
Bartlomiej Zolnierkiewicz | 0370453 | 2009-06-13 18:30:28 +0200 | [diff] [blame] | 2579 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2580 | sema_init(&ieee->wx_sem, 1); |
| 2581 | sema_init(&ieee->scan_sem, 1); |
| 2582 | |
| 2583 | spin_lock_init(&ieee->mgmt_tx_lock); |
| 2584 | spin_lock_init(&ieee->beacon_lock); |
| 2585 | |
| 2586 | tasklet_init(&ieee->ps_task, |
| 2587 | (void(*)(unsigned long)) ieee80211_sta_ps, |
| 2588 | (unsigned long)ieee); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2589 | ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2590 | } |
| 2591 | |
| 2592 | void ieee80211_softmac_free(struct ieee80211_device *ieee) |
| 2593 | { |
| 2594 | down(&ieee->wx_sem); |
| 2595 | |
| 2596 | del_timer_sync(&ieee->associate_timer); |
| 2597 | cancel_delayed_work(&ieee->associate_retry_wq); |
| 2598 | |
| 2599 | |
| 2600 | //add for RF power on power of by lizhaoming 080512 |
| 2601 | cancel_delayed_work(&ieee->GPIOChangeRFWorkItem); |
| 2602 | |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2603 | destroy_workqueue(ieee->wq); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2604 | if(NULL != ieee->pDot11dInfo) |
| 2605 | kfree(ieee->pDot11dInfo); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2606 | up(&ieee->wx_sem); |
| 2607 | } |
| 2608 | |
| 2609 | /******************************************************** |
| 2610 | * Start of WPA code. * |
| 2611 | * this is stolen from the ipw2200 driver * |
| 2612 | ********************************************************/ |
| 2613 | |
| 2614 | |
| 2615 | static int ieee80211_wpa_enable(struct ieee80211_device *ieee, int value) |
| 2616 | { |
| 2617 | /* This is called when wpa_supplicant loads and closes the driver |
| 2618 | * interface. */ |
| 2619 | printk("%s WPA\n",value ? "enabling" : "disabling"); |
| 2620 | ieee->wpa_enabled = value; |
| 2621 | return 0; |
| 2622 | } |
| 2623 | |
| 2624 | |
| 2625 | void ieee80211_wpa_assoc_frame(struct ieee80211_device *ieee, char *wpa_ie, int wpa_ie_len) |
| 2626 | { |
| 2627 | /* make sure WPA is enabled */ |
| 2628 | ieee80211_wpa_enable(ieee, 1); |
| 2629 | |
| 2630 | ieee80211_disassociate(ieee); |
| 2631 | } |
| 2632 | |
| 2633 | |
| 2634 | static int ieee80211_wpa_mlme(struct ieee80211_device *ieee, int command, int reason) |
| 2635 | { |
| 2636 | |
| 2637 | int ret = 0; |
| 2638 | |
| 2639 | switch (command) { |
| 2640 | case IEEE_MLME_STA_DEAUTH: |
| 2641 | // silently ignore |
| 2642 | break; |
| 2643 | |
| 2644 | case IEEE_MLME_STA_DISASSOC: |
| 2645 | ieee80211_disassociate(ieee); |
| 2646 | break; |
| 2647 | |
| 2648 | default: |
| 2649 | printk("Unknown MLME request: %d\n", command); |
| 2650 | ret = -EOPNOTSUPP; |
| 2651 | } |
| 2652 | |
| 2653 | return ret; |
| 2654 | } |
| 2655 | |
| 2656 | |
| 2657 | static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee, |
| 2658 | struct ieee_param *param, int plen) |
| 2659 | { |
| 2660 | u8 *buf; |
| 2661 | |
| 2662 | if (param->u.wpa_ie.len > MAX_WPA_IE_LEN || |
| 2663 | (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL)) |
| 2664 | return -EINVAL; |
| 2665 | |
| 2666 | if (param->u.wpa_ie.len) { |
| 2667 | buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL); |
| 2668 | if (buf == NULL) |
| 2669 | return -ENOMEM; |
| 2670 | |
| 2671 | memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len); |
| 2672 | kfree(ieee->wpa_ie); |
| 2673 | ieee->wpa_ie = buf; |
| 2674 | ieee->wpa_ie_len = param->u.wpa_ie.len; |
| 2675 | } else { |
| 2676 | kfree(ieee->wpa_ie); |
| 2677 | ieee->wpa_ie = NULL; |
| 2678 | ieee->wpa_ie_len = 0; |
| 2679 | } |
| 2680 | |
| 2681 | ieee80211_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len); |
| 2682 | return 0; |
| 2683 | } |
| 2684 | |
| 2685 | #define AUTH_ALG_OPEN_SYSTEM 0x1 |
| 2686 | #define AUTH_ALG_SHARED_KEY 0x2 |
| 2687 | |
| 2688 | static int ieee80211_wpa_set_auth_algs(struct ieee80211_device *ieee, int value) |
| 2689 | { |
| 2690 | |
| 2691 | struct ieee80211_security sec = { |
| 2692 | .flags = SEC_AUTH_MODE, |
| 2693 | }; |
| 2694 | int ret = 0; |
| 2695 | |
| 2696 | if (value & AUTH_ALG_SHARED_KEY) { |
| 2697 | sec.auth_mode = WLAN_AUTH_SHARED_KEY; |
| 2698 | ieee->open_wep = 0; |
| 2699 | } else { |
| 2700 | sec.auth_mode = WLAN_AUTH_OPEN; |
| 2701 | ieee->open_wep = 1; |
| 2702 | } |
| 2703 | |
| 2704 | if (ieee->set_security) |
| 2705 | ieee->set_security(ieee->dev, &sec); |
| 2706 | else |
| 2707 | ret = -EOPNOTSUPP; |
| 2708 | |
| 2709 | return ret; |
| 2710 | } |
| 2711 | |
| 2712 | static int ieee80211_wpa_set_param(struct ieee80211_device *ieee, u8 name, u32 value) |
| 2713 | { |
| 2714 | int ret=0; |
| 2715 | unsigned long flags; |
| 2716 | |
| 2717 | switch (name) { |
| 2718 | case IEEE_PARAM_WPA_ENABLED: |
| 2719 | ret = ieee80211_wpa_enable(ieee, value); |
| 2720 | break; |
| 2721 | |
| 2722 | case IEEE_PARAM_TKIP_COUNTERMEASURES: |
| 2723 | ieee->tkip_countermeasures=value; |
| 2724 | break; |
| 2725 | |
| 2726 | case IEEE_PARAM_DROP_UNENCRYPTED: { |
| 2727 | /* HACK: |
| 2728 | * |
| 2729 | * wpa_supplicant calls set_wpa_enabled when the driver |
| 2730 | * is loaded and unloaded, regardless of if WPA is being |
| 2731 | * used. No other calls are made which can be used to |
| 2732 | * determine if encryption will be used or not prior to |
| 2733 | * association being expected. If encryption is not being |
| 2734 | * used, drop_unencrypted is set to false, else true -- we |
| 2735 | * can use this to determine if the CAP_PRIVACY_ON bit should |
| 2736 | * be set. |
| 2737 | */ |
| 2738 | struct ieee80211_security sec = { |
| 2739 | .flags = SEC_ENABLED, |
| 2740 | .enabled = value, |
| 2741 | }; |
| 2742 | ieee->drop_unencrypted = value; |
| 2743 | /* We only change SEC_LEVEL for open mode. Others |
| 2744 | * are set by ipw_wpa_set_encryption. |
| 2745 | */ |
| 2746 | if (!value) { |
| 2747 | sec.flags |= SEC_LEVEL; |
| 2748 | sec.level = SEC_LEVEL_0; |
| 2749 | } |
| 2750 | else { |
| 2751 | sec.flags |= SEC_LEVEL; |
| 2752 | sec.level = SEC_LEVEL_1; |
| 2753 | } |
| 2754 | if (ieee->set_security) |
| 2755 | ieee->set_security(ieee->dev, &sec); |
| 2756 | break; |
| 2757 | } |
| 2758 | |
| 2759 | case IEEE_PARAM_PRIVACY_INVOKED: |
| 2760 | ieee->privacy_invoked=value; |
| 2761 | break; |
| 2762 | |
| 2763 | case IEEE_PARAM_AUTH_ALGS: |
| 2764 | ret = ieee80211_wpa_set_auth_algs(ieee, value); |
| 2765 | break; |
| 2766 | |
| 2767 | case IEEE_PARAM_IEEE_802_1X: |
| 2768 | ieee->ieee802_1x=value; |
| 2769 | break; |
| 2770 | case IEEE_PARAM_WPAX_SELECT: |
| 2771 | // added for WPA2 mixed mode |
| 2772 | //printk(KERN_WARNING "------------------------>wpax value = %x\n", value); |
| 2773 | spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags); |
| 2774 | ieee->wpax_type_set = 1; |
| 2775 | ieee->wpax_type_notify = value; |
| 2776 | spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags); |
| 2777 | break; |
| 2778 | |
| 2779 | default: |
| 2780 | printk("Unknown WPA param: %d\n",name); |
| 2781 | ret = -EOPNOTSUPP; |
| 2782 | } |
| 2783 | |
| 2784 | return ret; |
| 2785 | } |
| 2786 | |
| 2787 | /* implementation borrowed from hostap driver */ |
| 2788 | |
| 2789 | static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee, |
| 2790 | struct ieee_param *param, int param_len) |
| 2791 | { |
| 2792 | int ret = 0; |
| 2793 | |
| 2794 | struct ieee80211_crypto_ops *ops; |
| 2795 | struct ieee80211_crypt_data **crypt; |
| 2796 | |
| 2797 | struct ieee80211_security sec = { |
| 2798 | .flags = 0, |
| 2799 | }; |
| 2800 | |
| 2801 | param->u.crypt.err = 0; |
| 2802 | param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0'; |
| 2803 | |
| 2804 | if (param_len != |
| 2805 | (int) ((char *) param->u.crypt.key - (char *) param) + |
| 2806 | param->u.crypt.key_len) { |
| 2807 | printk("Len mismatch %d, %d\n", param_len, |
| 2808 | param->u.crypt.key_len); |
| 2809 | return -EINVAL; |
| 2810 | } |
| 2811 | if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && |
| 2812 | param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && |
| 2813 | param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { |
| 2814 | if (param->u.crypt.idx >= WEP_KEYS) |
| 2815 | return -EINVAL; |
| 2816 | crypt = &ieee->crypt[param->u.crypt.idx]; |
| 2817 | } else { |
| 2818 | return -EINVAL; |
| 2819 | } |
| 2820 | |
| 2821 | if (strcmp(param->u.crypt.alg, "none") == 0) { |
| 2822 | if (crypt) { |
| 2823 | sec.enabled = 0; |
| 2824 | // FIXME FIXME |
| 2825 | //sec.encrypt = 0; |
| 2826 | sec.level = SEC_LEVEL_0; |
| 2827 | sec.flags |= SEC_ENABLED | SEC_LEVEL; |
| 2828 | ieee80211_crypt_delayed_deinit(ieee, crypt); |
| 2829 | } |
| 2830 | goto done; |
| 2831 | } |
| 2832 | sec.enabled = 1; |
| 2833 | // FIXME FIXME |
| 2834 | // sec.encrypt = 1; |
| 2835 | sec.flags |= SEC_ENABLED; |
| 2836 | |
| 2837 | /* IPW HW cannot build TKIP MIC, host decryption still needed. */ |
| 2838 | if (!(ieee->host_encrypt || ieee->host_decrypt) && |
| 2839 | strcmp(param->u.crypt.alg, "TKIP")) |
| 2840 | goto skip_host_crypt; |
| 2841 | |
| 2842 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
Herton Ronaldo Krzesinski | a010a33 | 2009-10-02 11:03:38 -0300 | [diff] [blame] | 2843 | if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2844 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
Herton Ronaldo Krzesinski | a010a33 | 2009-10-02 11:03:38 -0300 | [diff] [blame] | 2845 | else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2846 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
Herton Ronaldo Krzesinski | a010a33 | 2009-10-02 11:03:38 -0300 | [diff] [blame] | 2847 | else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2848 | ops = ieee80211_get_crypto_ops(param->u.crypt.alg); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2849 | if (ops == NULL) { |
| 2850 | printk("unknown crypto alg '%s'\n", param->u.crypt.alg); |
| 2851 | param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG; |
| 2852 | ret = -EINVAL; |
| 2853 | goto done; |
| 2854 | } |
| 2855 | |
| 2856 | if (*crypt == NULL || (*crypt)->ops != ops) { |
| 2857 | struct ieee80211_crypt_data *new_crypt; |
| 2858 | |
| 2859 | ieee80211_crypt_delayed_deinit(ieee, crypt); |
| 2860 | |
| 2861 | new_crypt = (struct ieee80211_crypt_data *) |
| 2862 | kmalloc(sizeof(*new_crypt), GFP_KERNEL); |
| 2863 | if (new_crypt == NULL) { |
| 2864 | ret = -ENOMEM; |
| 2865 | goto done; |
| 2866 | } |
| 2867 | memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data)); |
| 2868 | new_crypt->ops = ops; |
Herton Ronaldo Krzesinski | a010a33 | 2009-10-02 11:03:38 -0300 | [diff] [blame] | 2869 | if (new_crypt->ops) |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 2870 | new_crypt->priv = |
| 2871 | new_crypt->ops->init(param->u.crypt.idx); |
| 2872 | |
| 2873 | if (new_crypt->priv == NULL) { |
| 2874 | kfree(new_crypt); |
| 2875 | param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED; |
| 2876 | ret = -EINVAL; |
| 2877 | goto done; |
| 2878 | } |
| 2879 | |
| 2880 | *crypt = new_crypt; |
| 2881 | } |
| 2882 | |
| 2883 | if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key && |
| 2884 | (*crypt)->ops->set_key(param->u.crypt.key, |
| 2885 | param->u.crypt.key_len, param->u.crypt.seq, |
| 2886 | (*crypt)->priv) < 0) { |
| 2887 | printk("key setting failed\n"); |
| 2888 | param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED; |
| 2889 | ret = -EINVAL; |
| 2890 | goto done; |
| 2891 | } |
| 2892 | |
| 2893 | skip_host_crypt: |
| 2894 | if (param->u.crypt.set_tx) { |
| 2895 | ieee->tx_keyidx = param->u.crypt.idx; |
| 2896 | sec.active_key = param->u.crypt.idx; |
| 2897 | sec.flags |= SEC_ACTIVE_KEY; |
| 2898 | } else |
| 2899 | sec.flags &= ~SEC_ACTIVE_KEY; |
| 2900 | |
| 2901 | if (param->u.crypt.alg != NULL) { |
| 2902 | memcpy(sec.keys[param->u.crypt.idx], |
| 2903 | param->u.crypt.key, |
| 2904 | param->u.crypt.key_len); |
| 2905 | sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len; |
| 2906 | sec.flags |= (1 << param->u.crypt.idx); |
| 2907 | |
| 2908 | if (strcmp(param->u.crypt.alg, "WEP") == 0) { |
| 2909 | sec.flags |= SEC_LEVEL; |
| 2910 | sec.level = SEC_LEVEL_1; |
| 2911 | } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) { |
| 2912 | sec.flags |= SEC_LEVEL; |
| 2913 | sec.level = SEC_LEVEL_2; |
| 2914 | } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) { |
| 2915 | sec.flags |= SEC_LEVEL; |
| 2916 | sec.level = SEC_LEVEL_3; |
| 2917 | } |
| 2918 | } |
| 2919 | done: |
| 2920 | if (ieee->set_security) |
| 2921 | ieee->set_security(ieee->dev, &sec); |
| 2922 | |
| 2923 | /* Do not reset port if card is in Managed mode since resetting will |
| 2924 | * generate new IEEE 802.11 authentication which may end up in looping |
| 2925 | * with IEEE 802.1X. If your hardware requires a reset after WEP |
| 2926 | * configuration (for example... Prism2), implement the reset_port in |
| 2927 | * the callbacks structures used to initialize the 802.11 stack. */ |
| 2928 | if (ieee->reset_on_keychange && |
| 2929 | ieee->iw_mode != IW_MODE_INFRA && |
| 2930 | ieee->reset_port && |
| 2931 | ieee->reset_port(ieee->dev)) { |
| 2932 | printk("reset_port failed\n"); |
| 2933 | param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED; |
| 2934 | return -EINVAL; |
| 2935 | } |
| 2936 | |
| 2937 | return ret; |
| 2938 | } |
| 2939 | |
| 2940 | int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p) |
| 2941 | { |
| 2942 | struct ieee_param *param; |
| 2943 | int ret=0; |
| 2944 | |
| 2945 | down(&ieee->wx_sem); |
| 2946 | //IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length); |
| 2947 | |
| 2948 | if (p->length < sizeof(struct ieee_param) || !p->pointer){ |
| 2949 | ret = -EINVAL; |
| 2950 | goto out; |
| 2951 | } |
| 2952 | |
| 2953 | param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL); |
| 2954 | if (param == NULL){ |
| 2955 | ret = -ENOMEM; |
| 2956 | goto out; |
| 2957 | } |
| 2958 | if (copy_from_user(param, p->pointer, p->length)) { |
| 2959 | kfree(param); |
| 2960 | ret = -EFAULT; |
| 2961 | goto out; |
| 2962 | } |
| 2963 | |
| 2964 | switch (param->cmd) { |
| 2965 | |
| 2966 | case IEEE_CMD_SET_WPA_PARAM: |
| 2967 | ret = ieee80211_wpa_set_param(ieee, param->u.wpa_param.name, |
| 2968 | param->u.wpa_param.value); |
| 2969 | break; |
| 2970 | |
| 2971 | case IEEE_CMD_SET_WPA_IE: |
| 2972 | ret = ieee80211_wpa_set_wpa_ie(ieee, param, p->length); |
| 2973 | break; |
| 2974 | |
| 2975 | case IEEE_CMD_SET_ENCRYPTION: |
| 2976 | ret = ieee80211_wpa_set_encryption(ieee, param, p->length); |
| 2977 | break; |
| 2978 | |
| 2979 | case IEEE_CMD_MLME: |
| 2980 | ret = ieee80211_wpa_mlme(ieee, param->u.mlme.command, |
| 2981 | param->u.mlme.reason_code); |
| 2982 | break; |
| 2983 | |
| 2984 | default: |
| 2985 | printk("Unknown WPA supplicant request: %d\n",param->cmd); |
| 2986 | ret = -EOPNOTSUPP; |
| 2987 | break; |
| 2988 | } |
| 2989 | |
| 2990 | if (ret == 0 && copy_to_user(p->pointer, param, p->length)) |
| 2991 | ret = -EFAULT; |
| 2992 | |
| 2993 | kfree(param); |
| 2994 | out: |
| 2995 | up(&ieee->wx_sem); |
| 2996 | |
| 2997 | return ret; |
| 2998 | } |
| 2999 | |
| 3000 | void notify_wx_assoc_event(struct ieee80211_device *ieee) |
| 3001 | { |
| 3002 | union iwreq_data wrqu; |
| 3003 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 3004 | if (ieee->state == IEEE80211_LINKED) |
| 3005 | memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN); |
| 3006 | else |
| 3007 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 3008 | wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL); |
| 3009 | } |