1 /****************************************************************************** 2 * 3 * Copyright(c) 2004 Intel Corporation. All rights reserved. 4 * 5 * Portions of this file are based on the WEP enablement code provided by the 6 * Host AP project hostap-drivers v0.1.3 7 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen 8 * <jkmaline@cc.hut.fi> 9 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> 10 * 11 * This program is free software; you can redistribute it and/or modify it 12 * under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but WITHOUT 16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 18 * more details. 19 * 20 * The full GNU General Public License is included in this distribution in the 21 * file called LICENSE. 22 * 23 * Contact Information: 24 * James P. Ketrenos <ipw2100-admin@linux.intel.com> 25 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 26 * 27 *****************************************************************************/ 28 #include <linux/wireless.h> 29 #include <linux/kmod.h> 30 #include <linux/module.h> 31 #include <linux/etherdevice.h> 32 #include "rtllib.h" 33 struct modes_unit { 34 char *mode_string; 35 int mode_size; 36 }; 37 static struct modes_unit rtllib_modes[] = { 38 {"a", 1}, 39 {"b", 1}, 40 {"g", 1}, 41 {"?", 1}, 42 {"N-24G", 5}, 43 {"N-5G", 4}, 44 }; 45 46 #define MAX_CUSTOM_LEN 64 47 static inline char *rtl819x_translate_scan(struct rtllib_device *ieee, 48 char *start, char *stop, 49 struct rtllib_network *network, 50 struct iw_request_info *info) 51 { 52 char custom[MAX_CUSTOM_LEN]; 53 char proto_name[IFNAMSIZ]; 54 char *pname = proto_name; 55 char *p; 56 struct iw_event iwe; 57 int i, j; 58 u16 max_rate, rate; 59 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; 60 61 /* First entry *MUST* be the AP MAC address */ 62 iwe.cmd = SIOCGIWAP; 63 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 64 ether_addr_copy(iwe.u.ap_addr.sa_data, network->bssid); 65 start = iwe_stream_add_event_rsl(info, start, stop, 66 &iwe, IW_EV_ADDR_LEN); 67 /* Remaining entries will be displayed in the order we provide them */ 68 69 /* Add the ESSID */ 70 iwe.cmd = SIOCGIWESSID; 71 iwe.u.data.flags = 1; 72 if (network->ssid_len > 0) { 73 iwe.u.data.length = min_t(u8, network->ssid_len, 32); 74 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, 75 network->ssid); 76 } else if (network->hidden_ssid_len == 0) { 77 iwe.u.data.length = sizeof("<hidden>"); 78 start = iwe_stream_add_point_rsl(info, start, stop, 79 &iwe, "<hidden>"); 80 } else { 81 iwe.u.data.length = min_t(u8, network->hidden_ssid_len, 32); 82 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, 83 network->hidden_ssid); 84 } 85 /* Add the protocol name */ 86 iwe.cmd = SIOCGIWNAME; 87 for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) { 88 if (network->mode&(1<<i)) { 89 sprintf(pname, rtllib_modes[i].mode_string, 90 rtllib_modes[i].mode_size); 91 pname += rtllib_modes[i].mode_size; 92 } 93 } 94 *pname = '\0'; 95 snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name); 96 start = iwe_stream_add_event_rsl(info, start, stop, 97 &iwe, IW_EV_CHAR_LEN); 98 /* Add mode */ 99 iwe.cmd = SIOCGIWMODE; 100 if (network->capability & 101 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { 102 if (network->capability & WLAN_CAPABILITY_ESS) 103 iwe.u.mode = IW_MODE_MASTER; 104 else 105 iwe.u.mode = IW_MODE_ADHOC; 106 start = iwe_stream_add_event_rsl(info, start, stop, 107 &iwe, IW_EV_UINT_LEN); 108 } 109 110 /* Add frequency/channel */ 111 iwe.cmd = SIOCGIWFREQ; 112 iwe.u.freq.m = network->channel; 113 iwe.u.freq.e = 0; 114 iwe.u.freq.i = 0; 115 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, 116 IW_EV_FREQ_LEN); 117 118 /* Add encryption capability */ 119 iwe.cmd = SIOCGIWENCODE; 120 if (network->capability & WLAN_CAPABILITY_PRIVACY) 121 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; 122 else 123 iwe.u.data.flags = IW_ENCODE_DISABLED; 124 iwe.u.data.length = 0; 125 start = iwe_stream_add_point_rsl(info, start, stop, 126 &iwe, network->ssid); 127 /* Add basic and extended rates */ 128 max_rate = 0; 129 p = custom; 130 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): "); 131 for (i = 0, j = 0; i < network->rates_len;) { 132 if (j < network->rates_ex_len && 133 ((network->rates_ex[j] & 0x7F) < 134 (network->rates[i] & 0x7F))) 135 rate = network->rates_ex[j++] & 0x7F; 136 else 137 rate = network->rates[i++] & 0x7F; 138 if (rate > max_rate) 139 max_rate = rate; 140 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), 141 "%d%s ", rate >> 1, (rate & 1) ? ".5" : ""); 142 } 143 for (; j < network->rates_ex_len; j++) { 144 rate = network->rates_ex[j] & 0x7F; 145 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), 146 "%d%s ", rate >> 1, (rate & 1) ? ".5" : ""); 147 if (rate > max_rate) 148 max_rate = rate; 149 } 150 151 if (network->mode >= IEEE_N_24G) { 152 struct ht_capab_ele *ht_cap = NULL; 153 bool is40M = false, isShortGI = false; 154 u8 max_mcs = 0; 155 156 if (!memcmp(network->bssht.bdHTCapBuf, EWC11NHTCap, 4)) 157 ht_cap = (struct ht_capab_ele *) 158 &network->bssht.bdHTCapBuf[4]; 159 else 160 ht_cap = (struct ht_capab_ele *) 161 &network->bssht.bdHTCapBuf[0]; 162 is40M = (ht_cap->ChlWidth) ? 1 : 0; 163 isShortGI = (ht_cap->ChlWidth) ? 164 ((ht_cap->ShortGI40Mhz) ? 1 : 0) : 165 ((ht_cap->ShortGI20Mhz) ? 1 : 0); 166 167 max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS, 168 MCS_FILTER_ALL); 169 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f]; 170 if (rate > max_rate) 171 max_rate = rate; 172 } 173 iwe.cmd = SIOCGIWRATE; 174 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; 175 iwe.u.bitrate.value = max_rate * 500000; 176 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, 177 IW_EV_PARAM_LEN); 178 iwe.cmd = IWEVCUSTOM; 179 iwe.u.data.length = p - custom; 180 if (iwe.u.data.length) 181 start = iwe_stream_add_point_rsl(info, start, stop, 182 &iwe, custom); 183 /* Add quality statistics */ 184 /* TODO: Fix these values... */ 185 iwe.cmd = IWEVQUAL; 186 iwe.u.qual.qual = network->stats.signal; 187 iwe.u.qual.level = network->stats.rssi; 188 iwe.u.qual.noise = network->stats.noise; 189 iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK; 190 if (!(network->stats.mask & RTLLIB_STATMASK_RSSI)) 191 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; 192 if (!(network->stats.mask & RTLLIB_STATMASK_NOISE)) 193 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; 194 if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL)) 195 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID; 196 iwe.u.qual.updated = 7; 197 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, 198 IW_EV_QUAL_LEN); 199 200 iwe.cmd = IWEVCUSTOM; 201 p = custom; 202 iwe.u.data.length = p - custom; 203 if (iwe.u.data.length) 204 start = iwe_stream_add_point_rsl(info, start, stop, 205 &iwe, custom); 206 207 memset(&iwe, 0, sizeof(iwe)); 208 if (network->wpa_ie_len) { 209 char buf[MAX_WPA_IE_LEN]; 210 211 memcpy(buf, network->wpa_ie, network->wpa_ie_len); 212 iwe.cmd = IWEVGENIE; 213 iwe.u.data.length = network->wpa_ie_len; 214 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 215 } 216 memset(&iwe, 0, sizeof(iwe)); 217 if (network->rsn_ie_len) { 218 char buf[MAX_WPA_IE_LEN]; 219 220 memcpy(buf, network->rsn_ie, network->rsn_ie_len); 221 iwe.cmd = IWEVGENIE; 222 iwe.u.data.length = network->rsn_ie_len; 223 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 224 } 225 226 /* add info for WZC */ 227 memset(&iwe, 0, sizeof(iwe)); 228 if (network->wzc_ie_len) { 229 char buf[MAX_WZC_IE_LEN]; 230 231 memcpy(buf, network->wzc_ie, network->wzc_ie_len); 232 iwe.cmd = IWEVGENIE; 233 iwe.u.data.length = network->wzc_ie_len; 234 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 235 } 236 237 /* Add EXTRA: Age to display seconds since last beacon/probe response 238 * for given network. 239 */ 240 iwe.cmd = IWEVCUSTOM; 241 p = custom; 242 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), 243 " Last beacon: %lums ago", 244 (jiffies - network->last_scanned) / (HZ / 100)); 245 iwe.u.data.length = p - custom; 246 if (iwe.u.data.length) 247 start = iwe_stream_add_point_rsl(info, start, stop, 248 &iwe, custom); 249 250 return start; 251 } 252 253 int rtllib_wx_get_scan(struct rtllib_device *ieee, 254 struct iw_request_info *info, 255 union iwreq_data *wrqu, char *extra) 256 { 257 struct rtllib_network *network; 258 unsigned long flags; 259 260 char *ev = extra; 261 char *stop = ev + wrqu->data.length; 262 int i = 0; 263 int err = 0; 264 265 netdev_dbg(ieee->dev, "Getting scan\n"); 266 mutex_lock(&ieee->wx_mutex); 267 spin_lock_irqsave(&ieee->lock, flags); 268 269 list_for_each_entry(network, &ieee->network_list, list) { 270 i++; 271 if ((stop - ev) < 200) { 272 err = -E2BIG; 273 break; 274 } 275 if (ieee->scan_age == 0 || 276 time_after(network->last_scanned + ieee->scan_age, jiffies)) 277 ev = rtl819x_translate_scan(ieee, ev, stop, network, 278 info); 279 else 280 netdev_dbg(ieee->dev, 281 "Network '%s ( %pM)' hidden due to age (%lums).\n", 282 escape_essid(network->ssid, 283 network->ssid_len), 284 network->bssid, 285 (jiffies - network->last_scanned) / 286 (HZ / 100)); 287 } 288 289 spin_unlock_irqrestore(&ieee->lock, flags); 290 mutex_unlock(&ieee->wx_mutex); 291 wrqu->data.length = ev - extra; 292 wrqu->data.flags = 0; 293 294 netdev_dbg(ieee->dev, "%s(): %d networks returned.\n", __func__, i); 295 296 return err; 297 } 298 EXPORT_SYMBOL(rtllib_wx_get_scan); 299 300 int rtllib_wx_set_encode(struct rtllib_device *ieee, 301 struct iw_request_info *info, 302 union iwreq_data *wrqu, char *keybuf) 303 { 304 struct iw_point *erq = &(wrqu->encoding); 305 struct net_device *dev = ieee->dev; 306 struct rtllib_security sec = { 307 .flags = 0 308 }; 309 int i, key, key_provided, len; 310 struct lib80211_crypt_data **crypt; 311 312 netdev_dbg(ieee->dev, "%s()\n", __func__); 313 314 key = erq->flags & IW_ENCODE_INDEX; 315 if (key) { 316 if (key > NUM_WEP_KEYS) 317 return -EINVAL; 318 key--; 319 key_provided = 1; 320 } else { 321 key_provided = 0; 322 key = ieee->crypt_info.tx_keyidx; 323 } 324 325 netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ? 326 "provided" : "default"); 327 crypt = &ieee->crypt_info.crypt[key]; 328 if (erq->flags & IW_ENCODE_DISABLED) { 329 if (key_provided && *crypt) { 330 netdev_dbg(ieee->dev, 331 "Disabling encryption on key %d.\n", key); 332 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 333 } else 334 netdev_dbg(ieee->dev, "Disabling encryption.\n"); 335 336 /* Check all the keys to see if any are still configured, 337 * and if no key index was provided, de-init them all 338 */ 339 for (i = 0; i < NUM_WEP_KEYS; i++) { 340 if (ieee->crypt_info.crypt[i] != NULL) { 341 if (key_provided) 342 break; 343 lib80211_crypt_delayed_deinit(&ieee->crypt_info, 344 &ieee->crypt_info.crypt[i]); 345 } 346 } 347 348 if (i == NUM_WEP_KEYS) { 349 sec.enabled = 0; 350 sec.level = SEC_LEVEL_0; 351 sec.flags |= SEC_ENABLED | SEC_LEVEL; 352 } 353 354 goto done; 355 } 356 357 358 359 sec.enabled = 1; 360 sec.flags |= SEC_ENABLED; 361 362 if (*crypt != NULL && (*crypt)->ops != NULL && 363 strcmp((*crypt)->ops->name, "R-WEP") != 0) { 364 /* changing to use WEP; deinit previously used algorithm 365 * on this key 366 */ 367 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 368 } 369 370 if (*crypt == NULL) { 371 struct lib80211_crypt_data *new_crypt; 372 373 /* take WEP into use */ 374 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); 375 if (new_crypt == NULL) 376 return -ENOMEM; 377 new_crypt->ops = lib80211_get_crypto_ops("R-WEP"); 378 if (!new_crypt->ops) { 379 request_module("rtllib_crypt_wep"); 380 new_crypt->ops = lib80211_get_crypto_ops("R-WEP"); 381 } 382 383 if (new_crypt->ops) 384 new_crypt->priv = new_crypt->ops->init(key); 385 386 if (!new_crypt->ops || !new_crypt->priv) { 387 kfree(new_crypt); 388 new_crypt = NULL; 389 390 netdev_warn(dev, 391 "%s: could not initialize WEP: load module rtllib_crypt_wep\n", 392 dev->name); 393 return -EOPNOTSUPP; 394 } 395 *crypt = new_crypt; 396 } 397 398 /* If a new key was provided, set it up */ 399 if (erq->length > 0) { 400 len = erq->length <= 5 ? 5 : 13; 401 memcpy(sec.keys[key], keybuf, erq->length); 402 if (len > erq->length) 403 memset(sec.keys[key] + erq->length, 0, 404 len - erq->length); 405 netdev_dbg(ieee->dev, "Setting key %d to '%s' (%d:%d bytes)\n", 406 key, escape_essid(sec.keys[key], len), erq->length, 407 len); 408 sec.key_sizes[key] = len; 409 (*crypt)->ops->set_key(sec.keys[key], len, NULL, 410 (*crypt)->priv); 411 sec.flags |= (1 << key); 412 /* This ensures a key will be activated if no key is 413 * explicitly set 414 */ 415 if (key == sec.active_key) 416 sec.flags |= SEC_ACTIVE_KEY; 417 ieee->crypt_info.tx_keyidx = key; 418 419 } else { 420 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, 421 NULL, (*crypt)->priv); 422 if (len == 0) { 423 /* Set a default key of all 0 */ 424 netdev_info(ieee->dev, "Setting key %d to all zero.\n", 425 key); 426 427 memset(sec.keys[key], 0, 13); 428 (*crypt)->ops->set_key(sec.keys[key], 13, NULL, 429 (*crypt)->priv); 430 sec.key_sizes[key] = 13; 431 sec.flags |= (1 << key); 432 } 433 434 /* No key data - just set the default TX key index */ 435 if (key_provided) { 436 netdev_dbg(ieee->dev, 437 "Setting key %d as default Tx key.\n", key); 438 ieee->crypt_info.tx_keyidx = key; 439 sec.active_key = key; 440 sec.flags |= SEC_ACTIVE_KEY; 441 } 442 } 443 done: 444 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); 445 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : 446 WLAN_AUTH_SHARED_KEY; 447 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY; 448 sec.flags |= SEC_AUTH_MODE; 449 netdev_dbg(ieee->dev, "Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ? 450 "OPEN" : "SHARED KEY"); 451 452 /* For now we just support WEP, so only set that security level... 453 * TODO: When WPA is added this is one place that needs to change 454 */ 455 sec.flags |= SEC_LEVEL; 456 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ 457 458 if (ieee->set_security) 459 ieee->set_security(dev, &sec); 460 461 /* Do not reset port if card is in Managed mode since resetting will 462 * generate new IEEE 802.11 authentication which may end up in looping 463 * with IEEE 802.1X. If your hardware requires a reset after WEP 464 * configuration (for example... Prism2), implement the reset_port in 465 * the callbacks structures used to initialize the 802.11 stack. 466 */ 467 if (ieee->reset_on_keychange && 468 ieee->iw_mode != IW_MODE_INFRA && 469 ieee->reset_port && ieee->reset_port(dev)) { 470 netdev_dbg(dev, "%s: reset_port failed\n", dev->name); 471 return -EINVAL; 472 } 473 return 0; 474 } 475 EXPORT_SYMBOL(rtllib_wx_set_encode); 476 477 int rtllib_wx_get_encode(struct rtllib_device *ieee, 478 struct iw_request_info *info, 479 union iwreq_data *wrqu, char *keybuf) 480 { 481 struct iw_point *erq = &(wrqu->encoding); 482 int len, key; 483 struct lib80211_crypt_data *crypt; 484 485 netdev_dbg(ieee->dev, "%s()\n", __func__); 486 487 if (ieee->iw_mode == IW_MODE_MONITOR) 488 return -1; 489 490 key = erq->flags & IW_ENCODE_INDEX; 491 if (key) { 492 if (key > NUM_WEP_KEYS) 493 return -EINVAL; 494 key--; 495 } else { 496 key = ieee->crypt_info.tx_keyidx; 497 } 498 crypt = ieee->crypt_info.crypt[key]; 499 500 erq->flags = key + 1; 501 502 if (crypt == NULL || crypt->ops == NULL) { 503 erq->length = 0; 504 erq->flags |= IW_ENCODE_DISABLED; 505 return 0; 506 } 507 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv); 508 509 erq->length = max(len, 0); 510 511 erq->flags |= IW_ENCODE_ENABLED; 512 513 if (ieee->open_wep) 514 erq->flags |= IW_ENCODE_OPEN; 515 else 516 erq->flags |= IW_ENCODE_RESTRICTED; 517 518 return 0; 519 } 520 EXPORT_SYMBOL(rtllib_wx_get_encode); 521 522 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee, 523 struct iw_request_info *info, 524 union iwreq_data *wrqu, char *extra) 525 { 526 int ret = 0; 527 struct net_device *dev = ieee->dev; 528 struct iw_point *encoding = &wrqu->encoding; 529 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; 530 int i, idx; 531 int group_key = 0; 532 const char *alg, *module; 533 struct lib80211_crypto_ops *ops; 534 struct lib80211_crypt_data **crypt; 535 536 struct rtllib_security sec = { 537 .flags = 0, 538 }; 539 idx = encoding->flags & IW_ENCODE_INDEX; 540 if (idx) { 541 if (idx < 1 || idx > NUM_WEP_KEYS) 542 return -EINVAL; 543 idx--; 544 } else{ 545 idx = ieee->crypt_info.tx_keyidx; 546 } 547 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) { 548 crypt = &ieee->crypt_info.crypt[idx]; 549 group_key = 1; 550 } else { 551 /* some Cisco APs use idx>0 for unicast in dynamic WEP */ 552 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP) 553 return -EINVAL; 554 if (ieee->iw_mode == IW_MODE_INFRA) 555 crypt = &ieee->crypt_info.crypt[idx]; 556 else 557 return -EINVAL; 558 } 559 560 sec.flags |= SEC_ENABLED; 561 if ((encoding->flags & IW_ENCODE_DISABLED) || 562 ext->alg == IW_ENCODE_ALG_NONE) { 563 if (*crypt) 564 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 565 566 for (i = 0; i < NUM_WEP_KEYS; i++) { 567 if (ieee->crypt_info.crypt[i] != NULL) 568 break; 569 } 570 if (i == NUM_WEP_KEYS) { 571 sec.enabled = 0; 572 sec.level = SEC_LEVEL_0; 573 sec.flags |= SEC_LEVEL; 574 } 575 goto done; 576 } 577 578 sec.enabled = 1; 579 switch (ext->alg) { 580 case IW_ENCODE_ALG_WEP: 581 alg = "R-WEP"; 582 module = "rtllib_crypt_wep"; 583 break; 584 case IW_ENCODE_ALG_TKIP: 585 alg = "R-TKIP"; 586 module = "rtllib_crypt_tkip"; 587 break; 588 case IW_ENCODE_ALG_CCMP: 589 alg = "R-CCMP"; 590 module = "rtllib_crypt_ccmp"; 591 break; 592 default: 593 netdev_dbg(ieee->dev, "Unknown crypto alg %d\n", ext->alg); 594 ret = -EINVAL; 595 goto done; 596 } 597 netdev_dbg(dev, "alg name:%s\n", alg); 598 599 ops = lib80211_get_crypto_ops(alg); 600 if (ops == NULL) { 601 char tempbuf[100]; 602 603 memset(tempbuf, 0x00, 100); 604 sprintf(tempbuf, "%s", module); 605 request_module("%s", tempbuf); 606 ops = lib80211_get_crypto_ops(alg); 607 } 608 if (ops == NULL) { 609 netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg); 610 ret = -EINVAL; 611 goto done; 612 } 613 614 if (*crypt == NULL || (*crypt)->ops != ops) { 615 struct lib80211_crypt_data *new_crypt; 616 617 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 618 619 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); 620 if (new_crypt == NULL) { 621 ret = -ENOMEM; 622 goto done; 623 } 624 new_crypt->ops = ops; 625 if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) 626 new_crypt->priv = new_crypt->ops->init(idx); 627 628 if (new_crypt->priv == NULL) { 629 kfree(new_crypt); 630 ret = -EINVAL; 631 goto done; 632 } 633 *crypt = new_crypt; 634 635 } 636 637 if (ext->key_len > 0 && (*crypt)->ops->set_key && 638 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, 639 (*crypt)->priv) < 0) { 640 netdev_info(dev, "key setting failed\n"); 641 ret = -EINVAL; 642 goto done; 643 } 644 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { 645 ieee->crypt_info.tx_keyidx = idx; 646 sec.active_key = idx; 647 sec.flags |= SEC_ACTIVE_KEY; 648 } 649 if (ext->alg != IW_ENCODE_ALG_NONE) { 650 sec.key_sizes[idx] = ext->key_len; 651 sec.flags |= (1 << idx); 652 if (ext->alg == IW_ENCODE_ALG_WEP) { 653 sec.flags |= SEC_LEVEL; 654 sec.level = SEC_LEVEL_1; 655 } else if (ext->alg == IW_ENCODE_ALG_TKIP) { 656 sec.flags |= SEC_LEVEL; 657 sec.level = SEC_LEVEL_2; 658 } else if (ext->alg == IW_ENCODE_ALG_CCMP) { 659 sec.flags |= SEC_LEVEL; 660 sec.level = SEC_LEVEL_3; 661 } 662 /* Don't set sec level for group keys. */ 663 if (group_key) 664 sec.flags &= ~SEC_LEVEL; 665 } 666 done: 667 if (ieee->set_security) 668 ieee->set_security(ieee->dev, &sec); 669 670 if (ieee->reset_on_keychange && 671 ieee->iw_mode != IW_MODE_INFRA && 672 ieee->reset_port && ieee->reset_port(dev)) { 673 netdev_dbg(ieee->dev, "Port reset failed\n"); 674 return -EINVAL; 675 } 676 return ret; 677 } 678 EXPORT_SYMBOL(rtllib_wx_set_encode_ext); 679 680 int rtllib_wx_set_mlme(struct rtllib_device *ieee, 681 struct iw_request_info *info, 682 union iwreq_data *wrqu, char *extra) 683 { 684 u8 i = 0; 685 bool deauth = false; 686 struct iw_mlme *mlme = (struct iw_mlme *) extra; 687 688 if (ieee->state != RTLLIB_LINKED) 689 return -ENOLINK; 690 691 mutex_lock(&ieee->wx_mutex); 692 693 switch (mlme->cmd) { 694 case IW_MLME_DEAUTH: 695 deauth = true; 696 /* fall through */ 697 case IW_MLME_DISASSOC: 698 if (deauth) 699 netdev_info(ieee->dev, "disauth packet !\n"); 700 else 701 netdev_info(ieee->dev, "dis associate packet!\n"); 702 703 ieee->cannot_notify = true; 704 705 SendDisassociation(ieee, deauth, mlme->reason_code); 706 rtllib_disassociate(ieee); 707 708 ieee->wap_set = 0; 709 for (i = 0; i < 6; i++) 710 ieee->current_network.bssid[i] = 0x55; 711 712 ieee->ssid_set = 0; 713 ieee->current_network.ssid[0] = '\0'; 714 ieee->current_network.ssid_len = 0; 715 break; 716 default: 717 mutex_unlock(&ieee->wx_mutex); 718 return -EOPNOTSUPP; 719 } 720 721 mutex_unlock(&ieee->wx_mutex); 722 723 return 0; 724 } 725 EXPORT_SYMBOL(rtllib_wx_set_mlme); 726 727 int rtllib_wx_set_auth(struct rtllib_device *ieee, 728 struct iw_request_info *info, 729 struct iw_param *data, char *extra) 730 { 731 switch (data->flags & IW_AUTH_INDEX) { 732 case IW_AUTH_WPA_VERSION: 733 break; 734 case IW_AUTH_CIPHER_PAIRWISE: 735 case IW_AUTH_CIPHER_GROUP: 736 case IW_AUTH_KEY_MGMT: 737 /* Host AP driver does not use these parameters and allows 738 * wpa_supplicant to control them internally. 739 */ 740 break; 741 case IW_AUTH_TKIP_COUNTERMEASURES: 742 ieee->tkip_countermeasures = data->value; 743 break; 744 case IW_AUTH_DROP_UNENCRYPTED: 745 ieee->drop_unencrypted = data->value; 746 break; 747 748 case IW_AUTH_80211_AUTH_ALG: 749 if (data->value & IW_AUTH_ALG_SHARED_KEY) { 750 ieee->open_wep = 0; 751 ieee->auth_mode = 1; 752 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) { 753 ieee->open_wep = 1; 754 ieee->auth_mode = 0; 755 } else if (data->value & IW_AUTH_ALG_LEAP) { 756 ieee->open_wep = 1; 757 ieee->auth_mode = 2; 758 } else 759 return -EINVAL; 760 break; 761 762 case IW_AUTH_WPA_ENABLED: 763 ieee->wpa_enabled = (data->value) ? 1 : 0; 764 break; 765 766 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 767 ieee->ieee802_1x = data->value; 768 break; 769 case IW_AUTH_PRIVACY_INVOKED: 770 ieee->privacy_invoked = data->value; 771 break; 772 default: 773 return -EOPNOTSUPP; 774 } 775 return 0; 776 } 777 EXPORT_SYMBOL(rtllib_wx_set_auth); 778 779 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len) 780 { 781 u8 *buf; 782 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04}; 783 784 if (len > MAX_WPA_IE_LEN || (len && ie == NULL)) 785 return -EINVAL; 786 787 if (len) { 788 eid = ie[0]; 789 if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2], 790 wps_oui, 4))) { 791 792 ieee->wps_ie_len = min_t(size_t, len, MAX_WZC_IE_LEN); 793 buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL); 794 if (buf == NULL) 795 return -ENOMEM; 796 ieee->wps_ie = buf; 797 return 0; 798 } 799 } 800 ieee->wps_ie_len = 0; 801 kfree(ieee->wps_ie); 802 ieee->wps_ie = NULL; 803 if (len) { 804 if (len != ie[1]+2) 805 return -EINVAL; 806 buf = kmemdup(ie, len, GFP_KERNEL); 807 if (buf == NULL) 808 return -ENOMEM; 809 kfree(ieee->wpa_ie); 810 ieee->wpa_ie = buf; 811 ieee->wpa_ie_len = len; 812 } else { 813 kfree(ieee->wpa_ie); 814 ieee->wpa_ie = NULL; 815 ieee->wpa_ie_len = 0; 816 } 817 return 0; 818 } 819 EXPORT_SYMBOL(rtllib_wx_set_gen_ie); 820