1 // SPDX-License-Identifier: GPL-2.0 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 * Contact Information: 12 * James P. Ketrenos <ipw2100-admin@linux.intel.com> 13 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 14 */ 15 #include <linux/wireless.h> 16 #include <linux/kmod.h> 17 #include <linux/module.h> 18 #include <linux/etherdevice.h> 19 #include "rtllib.h" 20 struct modes_unit { 21 char *mode_string; 22 int mode_size; 23 }; 24 static struct modes_unit rtllib_modes[] = { 25 {"a", 1}, 26 {"b", 1}, 27 {"g", 1}, 28 {"?", 1}, 29 {"N-24G", 5}, 30 {"N-5G", 4}, 31 }; 32 33 #define MAX_CUSTOM_LEN 64 34 static inline char *rtl819x_translate_scan(struct rtllib_device *ieee, 35 char *start, char *stop, 36 struct rtllib_network *network, 37 struct iw_request_info *info) 38 { 39 char custom[MAX_CUSTOM_LEN]; 40 char proto_name[IFNAMSIZ]; 41 char *pname = proto_name; 42 char *p; 43 struct iw_event iwe; 44 int i, j; 45 u16 max_rate, rate; 46 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; 47 48 /* First entry *MUST* be the AP MAC address */ 49 iwe.cmd = SIOCGIWAP; 50 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 51 ether_addr_copy(iwe.u.ap_addr.sa_data, network->bssid); 52 start = iwe_stream_add_event_rsl(info, start, stop, 53 &iwe, IW_EV_ADDR_LEN); 54 /* Remaining entries will be displayed in the order we provide them */ 55 56 /* Add the ESSID */ 57 iwe.cmd = SIOCGIWESSID; 58 iwe.u.data.flags = 1; 59 if (network->ssid_len > 0) { 60 iwe.u.data.length = min_t(u8, network->ssid_len, 32); 61 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, 62 network->ssid); 63 } else if (network->hidden_ssid_len == 0) { 64 iwe.u.data.length = sizeof("<hidden>"); 65 start = iwe_stream_add_point_rsl(info, start, stop, 66 &iwe, "<hidden>"); 67 } else { 68 iwe.u.data.length = min_t(u8, network->hidden_ssid_len, 32); 69 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, 70 network->hidden_ssid); 71 } 72 /* Add the protocol name */ 73 iwe.cmd = SIOCGIWNAME; 74 for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) { 75 if (network->mode&(1<<i)) { 76 sprintf(pname, rtllib_modes[i].mode_string, 77 rtllib_modes[i].mode_size); 78 pname += rtllib_modes[i].mode_size; 79 } 80 } 81 *pname = '\0'; 82 snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name); 83 start = iwe_stream_add_event_rsl(info, start, stop, 84 &iwe, IW_EV_CHAR_LEN); 85 /* Add mode */ 86 iwe.cmd = SIOCGIWMODE; 87 if (network->capability & 88 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { 89 if (network->capability & WLAN_CAPABILITY_ESS) 90 iwe.u.mode = IW_MODE_MASTER; 91 else 92 iwe.u.mode = IW_MODE_ADHOC; 93 start = iwe_stream_add_event_rsl(info, start, stop, 94 &iwe, IW_EV_UINT_LEN); 95 } 96 97 /* Add frequency/channel */ 98 iwe.cmd = SIOCGIWFREQ; 99 iwe.u.freq.m = network->channel; 100 iwe.u.freq.e = 0; 101 iwe.u.freq.i = 0; 102 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, 103 IW_EV_FREQ_LEN); 104 105 /* Add encryption capability */ 106 iwe.cmd = SIOCGIWENCODE; 107 if (network->capability & WLAN_CAPABILITY_PRIVACY) 108 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; 109 else 110 iwe.u.data.flags = IW_ENCODE_DISABLED; 111 iwe.u.data.length = 0; 112 start = iwe_stream_add_point_rsl(info, start, stop, 113 &iwe, network->ssid); 114 /* Add basic and extended rates */ 115 max_rate = 0; 116 p = custom; 117 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): "); 118 for (i = 0, j = 0; i < network->rates_len;) { 119 if (j < network->rates_ex_len && 120 ((network->rates_ex[j] & 0x7F) < 121 (network->rates[i] & 0x7F))) 122 rate = network->rates_ex[j++] & 0x7F; 123 else 124 rate = network->rates[i++] & 0x7F; 125 if (rate > max_rate) 126 max_rate = rate; 127 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), 128 "%d%s ", rate >> 1, (rate & 1) ? ".5" : ""); 129 } 130 for (; j < network->rates_ex_len; j++) { 131 rate = network->rates_ex[j] & 0x7F; 132 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), 133 "%d%s ", rate >> 1, (rate & 1) ? ".5" : ""); 134 if (rate > max_rate) 135 max_rate = rate; 136 } 137 138 if (network->mode >= IEEE_N_24G) { 139 struct ht_capab_ele *ht_cap = NULL; 140 bool is40M = false, isShortGI = false; 141 u8 max_mcs = 0; 142 143 if (!memcmp(network->bssht.bdHTCapBuf, EWC11NHTCap, 4)) 144 ht_cap = (struct ht_capab_ele *) 145 &network->bssht.bdHTCapBuf[4]; 146 else 147 ht_cap = (struct ht_capab_ele *) 148 &network->bssht.bdHTCapBuf[0]; 149 is40M = (ht_cap->ChlWidth) ? 1 : 0; 150 isShortGI = (ht_cap->ChlWidth) ? 151 ((ht_cap->ShortGI40Mhz) ? 1 : 0) : 152 ((ht_cap->ShortGI20Mhz) ? 1 : 0); 153 154 max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS, 155 MCS_FILTER_ALL); 156 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f]; 157 if (rate > max_rate) 158 max_rate = rate; 159 } 160 iwe.cmd = SIOCGIWRATE; 161 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; 162 iwe.u.bitrate.value = max_rate * 500000; 163 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, 164 IW_EV_PARAM_LEN); 165 iwe.cmd = IWEVCUSTOM; 166 iwe.u.data.length = p - custom; 167 if (iwe.u.data.length) 168 start = iwe_stream_add_point_rsl(info, start, stop, 169 &iwe, custom); 170 /* Add quality statistics */ 171 /* TODO: Fix these values... */ 172 iwe.cmd = IWEVQUAL; 173 iwe.u.qual.qual = network->stats.signal; 174 iwe.u.qual.level = network->stats.rssi; 175 iwe.u.qual.noise = network->stats.noise; 176 iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK; 177 if (!(network->stats.mask & RTLLIB_STATMASK_RSSI)) 178 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; 179 if (!(network->stats.mask & RTLLIB_STATMASK_NOISE)) 180 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; 181 if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL)) 182 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID; 183 iwe.u.qual.updated = 7; 184 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, 185 IW_EV_QUAL_LEN); 186 187 iwe.cmd = IWEVCUSTOM; 188 p = custom; 189 iwe.u.data.length = p - custom; 190 if (iwe.u.data.length) 191 start = iwe_stream_add_point_rsl(info, start, stop, 192 &iwe, custom); 193 194 memset(&iwe, 0, sizeof(iwe)); 195 if (network->wpa_ie_len) { 196 char buf[MAX_WPA_IE_LEN]; 197 198 memcpy(buf, network->wpa_ie, network->wpa_ie_len); 199 iwe.cmd = IWEVGENIE; 200 iwe.u.data.length = network->wpa_ie_len; 201 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 202 } 203 memset(&iwe, 0, sizeof(iwe)); 204 if (network->rsn_ie_len) { 205 char buf[MAX_WPA_IE_LEN]; 206 207 memcpy(buf, network->rsn_ie, network->rsn_ie_len); 208 iwe.cmd = IWEVGENIE; 209 iwe.u.data.length = network->rsn_ie_len; 210 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 211 } 212 213 /* add info for WZC */ 214 memset(&iwe, 0, sizeof(iwe)); 215 if (network->wzc_ie_len) { 216 char buf[MAX_WZC_IE_LEN]; 217 218 memcpy(buf, network->wzc_ie, network->wzc_ie_len); 219 iwe.cmd = IWEVGENIE; 220 iwe.u.data.length = network->wzc_ie_len; 221 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 222 } 223 224 /* Add EXTRA: Age to display seconds since last beacon/probe response 225 * for given network. 226 */ 227 iwe.cmd = IWEVCUSTOM; 228 p = custom; 229 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), 230 " Last beacon: %lums ago", 231 (jiffies - network->last_scanned) / (HZ / 100)); 232 iwe.u.data.length = p - custom; 233 if (iwe.u.data.length) 234 start = iwe_stream_add_point_rsl(info, start, stop, 235 &iwe, custom); 236 237 return start; 238 } 239 240 int rtllib_wx_get_scan(struct rtllib_device *ieee, 241 struct iw_request_info *info, 242 union iwreq_data *wrqu, char *extra) 243 { 244 struct rtllib_network *network; 245 unsigned long flags; 246 247 char *ev = extra; 248 char *stop = ev + wrqu->data.length; 249 int i = 0; 250 int err = 0; 251 252 netdev_dbg(ieee->dev, "Getting scan\n"); 253 mutex_lock(&ieee->wx_mutex); 254 spin_lock_irqsave(&ieee->lock, flags); 255 256 list_for_each_entry(network, &ieee->network_list, list) { 257 i++; 258 if ((stop - ev) < 200) { 259 err = -E2BIG; 260 break; 261 } 262 if (ieee->scan_age == 0 || 263 time_after(network->last_scanned + ieee->scan_age, jiffies)) 264 ev = rtl819x_translate_scan(ieee, ev, stop, network, 265 info); 266 else 267 netdev_dbg(ieee->dev, 268 "Network '%s ( %pM)' hidden due to age (%lums).\n", 269 escape_essid(network->ssid, 270 network->ssid_len), 271 network->bssid, 272 (jiffies - network->last_scanned) / 273 (HZ / 100)); 274 } 275 276 spin_unlock_irqrestore(&ieee->lock, flags); 277 mutex_unlock(&ieee->wx_mutex); 278 wrqu->data.length = ev - extra; 279 wrqu->data.flags = 0; 280 281 netdev_dbg(ieee->dev, "%s(): %d networks returned.\n", __func__, i); 282 283 return err; 284 } 285 EXPORT_SYMBOL(rtllib_wx_get_scan); 286 287 int rtllib_wx_set_encode(struct rtllib_device *ieee, 288 struct iw_request_info *info, 289 union iwreq_data *wrqu, char *keybuf) 290 { 291 struct iw_point *erq = &(wrqu->encoding); 292 struct net_device *dev = ieee->dev; 293 struct rtllib_security sec = { 294 .flags = 0 295 }; 296 int i, key, key_provided, len; 297 struct lib80211_crypt_data **crypt; 298 299 netdev_dbg(ieee->dev, "%s()\n", __func__); 300 301 key = erq->flags & IW_ENCODE_INDEX; 302 if (key) { 303 if (key > NUM_WEP_KEYS) 304 return -EINVAL; 305 key--; 306 key_provided = 1; 307 } else { 308 key_provided = 0; 309 key = ieee->crypt_info.tx_keyidx; 310 } 311 312 netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ? 313 "provided" : "default"); 314 crypt = &ieee->crypt_info.crypt[key]; 315 if (erq->flags & IW_ENCODE_DISABLED) { 316 if (key_provided && *crypt) { 317 netdev_dbg(ieee->dev, 318 "Disabling encryption on key %d.\n", key); 319 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 320 } else 321 netdev_dbg(ieee->dev, "Disabling encryption.\n"); 322 323 /* Check all the keys to see if any are still configured, 324 * and if no key index was provided, de-init them all 325 */ 326 for (i = 0; i < NUM_WEP_KEYS; i++) { 327 if (ieee->crypt_info.crypt[i] != NULL) { 328 if (key_provided) 329 break; 330 lib80211_crypt_delayed_deinit(&ieee->crypt_info, 331 &ieee->crypt_info.crypt[i]); 332 } 333 } 334 335 if (i == NUM_WEP_KEYS) { 336 sec.enabled = 0; 337 sec.level = SEC_LEVEL_0; 338 sec.flags |= SEC_ENABLED | SEC_LEVEL; 339 } 340 341 goto done; 342 } 343 344 sec.enabled = 1; 345 sec.flags |= SEC_ENABLED; 346 347 if (*crypt != NULL && (*crypt)->ops != NULL && 348 strcmp((*crypt)->ops->name, "R-WEP") != 0) { 349 /* changing to use WEP; deinit previously used algorithm 350 * on this key 351 */ 352 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 353 } 354 355 if (*crypt == NULL) { 356 struct lib80211_crypt_data *new_crypt; 357 358 /* take WEP into use */ 359 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); 360 if (new_crypt == NULL) 361 return -ENOMEM; 362 new_crypt->ops = lib80211_get_crypto_ops("R-WEP"); 363 if (!new_crypt->ops) { 364 request_module("rtllib_crypt_wep"); 365 new_crypt->ops = lib80211_get_crypto_ops("R-WEP"); 366 } 367 368 if (new_crypt->ops) 369 new_crypt->priv = new_crypt->ops->init(key); 370 371 if (!new_crypt->ops || !new_crypt->priv) { 372 kfree(new_crypt); 373 new_crypt = NULL; 374 375 netdev_warn(dev, 376 "%s: could not initialize WEP: load module rtllib_crypt_wep\n", 377 dev->name); 378 return -EOPNOTSUPP; 379 } 380 *crypt = new_crypt; 381 } 382 383 /* If a new key was provided, set it up */ 384 if (erq->length > 0) { 385 len = erq->length <= 5 ? 5 : 13; 386 memcpy(sec.keys[key], keybuf, erq->length); 387 if (len > erq->length) 388 memset(sec.keys[key] + erq->length, 0, 389 len - erq->length); 390 netdev_dbg(ieee->dev, "Setting key %d to '%s' (%d:%d bytes)\n", 391 key, escape_essid(sec.keys[key], len), erq->length, 392 len); 393 sec.key_sizes[key] = len; 394 (*crypt)->ops->set_key(sec.keys[key], len, NULL, 395 (*crypt)->priv); 396 sec.flags |= (1 << key); 397 /* This ensures a key will be activated if no key is 398 * explicitly set 399 */ 400 if (key == sec.active_key) 401 sec.flags |= SEC_ACTIVE_KEY; 402 ieee->crypt_info.tx_keyidx = key; 403 404 } else { 405 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, 406 NULL, (*crypt)->priv); 407 if (len == 0) { 408 /* Set a default key of all 0 */ 409 netdev_info(ieee->dev, "Setting key %d to all zero.\n", 410 key); 411 412 memset(sec.keys[key], 0, 13); 413 (*crypt)->ops->set_key(sec.keys[key], 13, NULL, 414 (*crypt)->priv); 415 sec.key_sizes[key] = 13; 416 sec.flags |= (1 << key); 417 } 418 419 /* No key data - just set the default TX key index */ 420 if (key_provided) { 421 netdev_dbg(ieee->dev, 422 "Setting key %d as default Tx key.\n", key); 423 ieee->crypt_info.tx_keyidx = key; 424 sec.active_key = key; 425 sec.flags |= SEC_ACTIVE_KEY; 426 } 427 } 428 done: 429 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); 430 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : 431 WLAN_AUTH_SHARED_KEY; 432 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY; 433 sec.flags |= SEC_AUTH_MODE; 434 netdev_dbg(ieee->dev, "Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ? 435 "OPEN" : "SHARED KEY"); 436 437 /* For now we just support WEP, so only set that security level... 438 * TODO: When WPA is added this is one place that needs to change 439 */ 440 sec.flags |= SEC_LEVEL; 441 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ 442 443 if (ieee->set_security) 444 ieee->set_security(dev, &sec); 445 446 /* Do not reset port if card is in Managed mode since resetting will 447 * generate new IEEE 802.11 authentication which may end up in looping 448 * with IEEE 802.1X. If your hardware requires a reset after WEP 449 * configuration (for example... Prism2), implement the reset_port in 450 * the callbacks structures used to initialize the 802.11 stack. 451 */ 452 if (ieee->reset_on_keychange && 453 ieee->iw_mode != IW_MODE_INFRA && 454 ieee->reset_port && ieee->reset_port(dev)) { 455 netdev_dbg(dev, "%s: reset_port failed\n", dev->name); 456 return -EINVAL; 457 } 458 return 0; 459 } 460 EXPORT_SYMBOL(rtllib_wx_set_encode); 461 462 int rtllib_wx_get_encode(struct rtllib_device *ieee, 463 struct iw_request_info *info, 464 union iwreq_data *wrqu, char *keybuf) 465 { 466 struct iw_point *erq = &(wrqu->encoding); 467 int len, key; 468 struct lib80211_crypt_data *crypt; 469 470 netdev_dbg(ieee->dev, "%s()\n", __func__); 471 472 if (ieee->iw_mode == IW_MODE_MONITOR) 473 return -1; 474 475 key = erq->flags & IW_ENCODE_INDEX; 476 if (key) { 477 if (key > NUM_WEP_KEYS) 478 return -EINVAL; 479 key--; 480 } else { 481 key = ieee->crypt_info.tx_keyidx; 482 } 483 crypt = ieee->crypt_info.crypt[key]; 484 485 erq->flags = key + 1; 486 487 if (crypt == NULL || crypt->ops == NULL) { 488 erq->length = 0; 489 erq->flags |= IW_ENCODE_DISABLED; 490 return 0; 491 } 492 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv); 493 494 erq->length = max(len, 0); 495 496 erq->flags |= IW_ENCODE_ENABLED; 497 498 if (ieee->open_wep) 499 erq->flags |= IW_ENCODE_OPEN; 500 else 501 erq->flags |= IW_ENCODE_RESTRICTED; 502 503 return 0; 504 } 505 EXPORT_SYMBOL(rtllib_wx_get_encode); 506 507 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee, 508 struct iw_request_info *info, 509 union iwreq_data *wrqu, char *extra) 510 { 511 int ret = 0; 512 struct net_device *dev = ieee->dev; 513 struct iw_point *encoding = &wrqu->encoding; 514 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; 515 int i, idx; 516 int group_key = 0; 517 const char *alg, *module; 518 struct lib80211_crypto_ops *ops; 519 struct lib80211_crypt_data **crypt; 520 521 struct rtllib_security sec = { 522 .flags = 0, 523 }; 524 idx = encoding->flags & IW_ENCODE_INDEX; 525 if (idx) { 526 if (idx < 1 || idx > NUM_WEP_KEYS) 527 return -EINVAL; 528 idx--; 529 } else { 530 idx = ieee->crypt_info.tx_keyidx; 531 } 532 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) { 533 crypt = &ieee->crypt_info.crypt[idx]; 534 group_key = 1; 535 } else { 536 /* some Cisco APs use idx>0 for unicast in dynamic WEP */ 537 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP) 538 return -EINVAL; 539 if (ieee->iw_mode == IW_MODE_INFRA) 540 crypt = &ieee->crypt_info.crypt[idx]; 541 else 542 return -EINVAL; 543 } 544 545 sec.flags |= SEC_ENABLED; 546 if ((encoding->flags & IW_ENCODE_DISABLED) || 547 ext->alg == IW_ENCODE_ALG_NONE) { 548 if (*crypt) 549 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 550 551 for (i = 0; i < NUM_WEP_KEYS; i++) { 552 if (ieee->crypt_info.crypt[i] != NULL) 553 break; 554 } 555 if (i == NUM_WEP_KEYS) { 556 sec.enabled = 0; 557 sec.level = SEC_LEVEL_0; 558 sec.flags |= SEC_LEVEL; 559 } 560 goto done; 561 } 562 563 sec.enabled = 1; 564 switch (ext->alg) { 565 case IW_ENCODE_ALG_WEP: 566 alg = "R-WEP"; 567 module = "rtllib_crypt_wep"; 568 break; 569 case IW_ENCODE_ALG_TKIP: 570 alg = "R-TKIP"; 571 module = "rtllib_crypt_tkip"; 572 break; 573 case IW_ENCODE_ALG_CCMP: 574 alg = "R-CCMP"; 575 module = "rtllib_crypt_ccmp"; 576 break; 577 default: 578 netdev_dbg(ieee->dev, "Unknown crypto alg %d\n", ext->alg); 579 ret = -EINVAL; 580 goto done; 581 } 582 netdev_dbg(dev, "alg name:%s\n", alg); 583 584 ops = lib80211_get_crypto_ops(alg); 585 if (ops == NULL) { 586 char tempbuf[100]; 587 588 memset(tempbuf, 0x00, 100); 589 sprintf(tempbuf, "%s", module); 590 request_module("%s", tempbuf); 591 ops = lib80211_get_crypto_ops(alg); 592 } 593 if (ops == NULL) { 594 netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg); 595 ret = -EINVAL; 596 goto done; 597 } 598 599 if (*crypt == NULL || (*crypt)->ops != ops) { 600 struct lib80211_crypt_data *new_crypt; 601 602 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 603 604 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); 605 if (new_crypt == NULL) { 606 ret = -ENOMEM; 607 goto done; 608 } 609 new_crypt->ops = ops; 610 if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) 611 new_crypt->priv = new_crypt->ops->init(idx); 612 613 if (new_crypt->priv == NULL) { 614 kfree(new_crypt); 615 ret = -EINVAL; 616 goto done; 617 } 618 *crypt = new_crypt; 619 620 } 621 622 if (ext->key_len > 0 && (*crypt)->ops->set_key && 623 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, 624 (*crypt)->priv) < 0) { 625 netdev_info(dev, "key setting failed\n"); 626 ret = -EINVAL; 627 goto done; 628 } 629 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { 630 ieee->crypt_info.tx_keyidx = idx; 631 sec.active_key = idx; 632 sec.flags |= SEC_ACTIVE_KEY; 633 } 634 if (ext->alg != IW_ENCODE_ALG_NONE) { 635 sec.key_sizes[idx] = ext->key_len; 636 sec.flags |= (1 << idx); 637 if (ext->alg == IW_ENCODE_ALG_WEP) { 638 sec.flags |= SEC_LEVEL; 639 sec.level = SEC_LEVEL_1; 640 } else if (ext->alg == IW_ENCODE_ALG_TKIP) { 641 sec.flags |= SEC_LEVEL; 642 sec.level = SEC_LEVEL_2; 643 } else if (ext->alg == IW_ENCODE_ALG_CCMP) { 644 sec.flags |= SEC_LEVEL; 645 sec.level = SEC_LEVEL_3; 646 } 647 /* Don't set sec level for group keys. */ 648 if (group_key) 649 sec.flags &= ~SEC_LEVEL; 650 } 651 done: 652 if (ieee->set_security) 653 ieee->set_security(ieee->dev, &sec); 654 655 if (ieee->reset_on_keychange && 656 ieee->iw_mode != IW_MODE_INFRA && 657 ieee->reset_port && ieee->reset_port(dev)) { 658 netdev_dbg(ieee->dev, "Port reset failed\n"); 659 return -EINVAL; 660 } 661 return ret; 662 } 663 EXPORT_SYMBOL(rtllib_wx_set_encode_ext); 664 665 int rtllib_wx_set_mlme(struct rtllib_device *ieee, 666 struct iw_request_info *info, 667 union iwreq_data *wrqu, char *extra) 668 { 669 u8 i = 0; 670 bool deauth = false; 671 struct iw_mlme *mlme = (struct iw_mlme *) extra; 672 673 if (ieee->state != RTLLIB_LINKED) 674 return -ENOLINK; 675 676 mutex_lock(&ieee->wx_mutex); 677 678 switch (mlme->cmd) { 679 case IW_MLME_DEAUTH: 680 deauth = true; 681 fallthrough; 682 case IW_MLME_DISASSOC: 683 if (deauth) 684 netdev_info(ieee->dev, "disauth packet !\n"); 685 else 686 netdev_info(ieee->dev, "dis associate packet!\n"); 687 688 ieee->cannot_notify = true; 689 690 SendDisassociation(ieee, deauth, mlme->reason_code); 691 rtllib_disassociate(ieee); 692 693 ieee->wap_set = 0; 694 for (i = 0; i < 6; i++) 695 ieee->current_network.bssid[i] = 0x55; 696 697 ieee->ssid_set = 0; 698 ieee->current_network.ssid[0] = '\0'; 699 ieee->current_network.ssid_len = 0; 700 break; 701 default: 702 mutex_unlock(&ieee->wx_mutex); 703 return -EOPNOTSUPP; 704 } 705 706 mutex_unlock(&ieee->wx_mutex); 707 708 return 0; 709 } 710 EXPORT_SYMBOL(rtllib_wx_set_mlme); 711 712 int rtllib_wx_set_auth(struct rtllib_device *ieee, 713 struct iw_request_info *info, 714 struct iw_param *data, char *extra) 715 { 716 switch (data->flags & IW_AUTH_INDEX) { 717 case IW_AUTH_WPA_VERSION: 718 break; 719 case IW_AUTH_CIPHER_PAIRWISE: 720 case IW_AUTH_CIPHER_GROUP: 721 case IW_AUTH_KEY_MGMT: 722 /* Host AP driver does not use these parameters and allows 723 * wpa_supplicant to control them internally. 724 */ 725 break; 726 case IW_AUTH_TKIP_COUNTERMEASURES: 727 ieee->tkip_countermeasures = data->value; 728 break; 729 case IW_AUTH_DROP_UNENCRYPTED: 730 ieee->drop_unencrypted = data->value; 731 break; 732 733 case IW_AUTH_80211_AUTH_ALG: 734 if (data->value & IW_AUTH_ALG_SHARED_KEY) { 735 ieee->open_wep = 0; 736 ieee->auth_mode = 1; 737 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) { 738 ieee->open_wep = 1; 739 ieee->auth_mode = 0; 740 } else if (data->value & IW_AUTH_ALG_LEAP) { 741 ieee->open_wep = 1; 742 ieee->auth_mode = 2; 743 } else 744 return -EINVAL; 745 break; 746 747 case IW_AUTH_WPA_ENABLED: 748 ieee->wpa_enabled = (data->value) ? 1 : 0; 749 break; 750 751 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 752 ieee->ieee802_1x = data->value; 753 break; 754 case IW_AUTH_PRIVACY_INVOKED: 755 ieee->privacy_invoked = data->value; 756 break; 757 default: 758 return -EOPNOTSUPP; 759 } 760 return 0; 761 } 762 EXPORT_SYMBOL(rtllib_wx_set_auth); 763 764 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len) 765 { 766 u8 *buf; 767 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04}; 768 769 if (len > MAX_WPA_IE_LEN || (len && ie == NULL)) 770 return -EINVAL; 771 772 if (len) { 773 eid = ie[0]; 774 if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2], 775 wps_oui, 4))) { 776 777 ieee->wps_ie_len = min_t(size_t, len, MAX_WZC_IE_LEN); 778 buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL); 779 if (buf == NULL) 780 return -ENOMEM; 781 ieee->wps_ie = buf; 782 return 0; 783 } 784 } 785 ieee->wps_ie_len = 0; 786 kfree(ieee->wps_ie); 787 ieee->wps_ie = NULL; 788 if (len) { 789 if (len != ie[1]+2) 790 return -EINVAL; 791 buf = kmemdup(ie, len, GFP_KERNEL); 792 if (buf == NULL) 793 return -ENOMEM; 794 kfree(ieee->wpa_ie); 795 ieee->wpa_ie = buf; 796 ieee->wpa_ie_len = len; 797 } else { 798 kfree(ieee->wpa_ie); 799 ieee->wpa_ie = NULL; 800 ieee->wpa_ie_len = 0; 801 } 802 return 0; 803 } 804 EXPORT_SYMBOL(rtllib_wx_set_gen_ie); 805