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.bd_ht_cap_buf, EWC11NHTCap, 4)) 144 ht_cap = (struct ht_capab_ele *) 145 &network->bssht.bd_ht_cap_buf[4]; 146 else 147 ht_cap = (struct ht_capab_ele *) 148 &network->bssht.bd_ht_cap_buf[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, IW_EV_PARAM_LEN); 164 iwe.cmd = IWEVCUSTOM; 165 iwe.u.data.length = p - custom; 166 if (iwe.u.data.length) 167 start = iwe_stream_add_point_rsl(info, start, stop, 168 &iwe, custom); 169 /* Add quality statistics */ 170 /* TODO: Fix these values... */ 171 iwe.cmd = IWEVQUAL; 172 iwe.u.qual.qual = network->stats.signal; 173 iwe.u.qual.level = network->stats.rssi; 174 iwe.u.qual.noise = network->stats.noise; 175 iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK; 176 if (!(network->stats.mask & RTLLIB_STATMASK_RSSI)) 177 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; 178 if (!(network->stats.mask & RTLLIB_STATMASK_NOISE)) 179 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; 180 if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL)) 181 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID; 182 iwe.u.qual.updated = 7; 183 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN); 184 185 iwe.cmd = IWEVCUSTOM; 186 p = custom; 187 iwe.u.data.length = p - custom; 188 if (iwe.u.data.length) 189 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, custom); 190 191 memset(&iwe, 0, sizeof(iwe)); 192 if (network->wpa_ie_len) { 193 char buf[MAX_WPA_IE_LEN]; 194 195 memcpy(buf, network->wpa_ie, network->wpa_ie_len); 196 iwe.cmd = IWEVGENIE; 197 iwe.u.data.length = network->wpa_ie_len; 198 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 199 } 200 memset(&iwe, 0, sizeof(iwe)); 201 if (network->rsn_ie_len) { 202 char buf[MAX_WPA_IE_LEN]; 203 204 memcpy(buf, network->rsn_ie, network->rsn_ie_len); 205 iwe.cmd = IWEVGENIE; 206 iwe.u.data.length = network->rsn_ie_len; 207 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 208 } 209 210 /* add info for WZC */ 211 memset(&iwe, 0, sizeof(iwe)); 212 if (network->wzc_ie_len) { 213 char buf[MAX_WZC_IE_LEN]; 214 215 memcpy(buf, network->wzc_ie, network->wzc_ie_len); 216 iwe.cmd = IWEVGENIE; 217 iwe.u.data.length = network->wzc_ie_len; 218 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf); 219 } 220 221 /* Add EXTRA: Age to display seconds since last beacon/probe response 222 * for given network. 223 */ 224 iwe.cmd = IWEVCUSTOM; 225 p = custom; 226 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), 227 " Last beacon: %lums ago", 228 (jiffies - network->last_scanned) / (HZ / 100)); 229 iwe.u.data.length = p - custom; 230 if (iwe.u.data.length) 231 start = iwe_stream_add_point_rsl(info, start, stop, 232 &iwe, custom); 233 234 return start; 235 } 236 237 int rtllib_wx_get_scan(struct rtllib_device *ieee, 238 struct iw_request_info *info, 239 union iwreq_data *wrqu, char *extra) 240 { 241 struct rtllib_network *network; 242 unsigned long flags; 243 244 char *ev = extra; 245 char *stop = ev + wrqu->data.length; 246 int i = 0; 247 int err = 0; 248 249 netdev_dbg(ieee->dev, "Getting scan\n"); 250 mutex_lock(&ieee->wx_mutex); 251 spin_lock_irqsave(&ieee->lock, flags); 252 253 list_for_each_entry(network, &ieee->network_list, list) { 254 i++; 255 if ((stop - ev) < 200) { 256 err = -E2BIG; 257 break; 258 } 259 if (ieee->scan_age == 0 || 260 time_after(network->last_scanned + ieee->scan_age, jiffies)) 261 ev = rtl819x_translate_scan(ieee, ev, stop, network, 262 info); 263 else 264 netdev_dbg(ieee->dev, 265 "Network '%s ( %pM)' hidden due to age (%lums).\n", 266 escape_essid(network->ssid, 267 network->ssid_len), 268 network->bssid, 269 (jiffies - network->last_scanned) / 270 (HZ / 100)); 271 } 272 273 spin_unlock_irqrestore(&ieee->lock, flags); 274 mutex_unlock(&ieee->wx_mutex); 275 wrqu->data.length = ev - extra; 276 wrqu->data.flags = 0; 277 278 netdev_dbg(ieee->dev, "%s(): %d networks returned.\n", __func__, i); 279 280 return err; 281 } 282 EXPORT_SYMBOL(rtllib_wx_get_scan); 283 284 int rtllib_wx_set_encode(struct rtllib_device *ieee, 285 struct iw_request_info *info, 286 union iwreq_data *wrqu, char *keybuf) 287 { 288 struct iw_point *erq = &(wrqu->encoding); 289 struct net_device *dev = ieee->dev; 290 struct rtllib_security sec = { 291 .flags = 0 292 }; 293 int i, key, key_provided, len; 294 struct lib80211_crypt_data **crypt; 295 296 key = erq->flags & IW_ENCODE_INDEX; 297 if (key) { 298 if (key > NUM_WEP_KEYS) 299 return -EINVAL; 300 key--; 301 key_provided = 1; 302 } else { 303 key_provided = 0; 304 key = ieee->crypt_info.tx_keyidx; 305 } 306 307 netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ? 308 "provided" : "default"); 309 crypt = &ieee->crypt_info.crypt[key]; 310 if (erq->flags & IW_ENCODE_DISABLED) { 311 if (key_provided && *crypt) { 312 netdev_dbg(ieee->dev, 313 "Disabling encryption on key %d.\n", key); 314 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 315 } else 316 netdev_dbg(ieee->dev, "Disabling encryption.\n"); 317 318 /* Check all the keys to see if any are still configured, 319 * and if no key index was provided, de-init them all 320 */ 321 for (i = 0; i < NUM_WEP_KEYS; i++) { 322 if (ieee->crypt_info.crypt[i]) { 323 if (key_provided) 324 break; 325 lib80211_crypt_delayed_deinit(&ieee->crypt_info, 326 &ieee->crypt_info.crypt[i]); 327 } 328 } 329 330 if (i == NUM_WEP_KEYS) { 331 sec.enabled = 0; 332 sec.level = SEC_LEVEL_0; 333 sec.flags |= SEC_ENABLED | SEC_LEVEL; 334 } 335 336 goto done; 337 } 338 339 sec.enabled = 1; 340 sec.flags |= SEC_ENABLED; 341 342 if (*crypt && (*crypt)->ops && 343 strcmp((*crypt)->ops->name, "R-WEP") != 0) { 344 /* changing to use WEP; deinit previously used algorithm 345 * on this key 346 */ 347 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 348 } 349 350 if (!*crypt) { 351 struct lib80211_crypt_data *new_crypt; 352 353 /* take WEP into use */ 354 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); 355 if (!new_crypt) 356 return -ENOMEM; 357 new_crypt->ops = lib80211_get_crypto_ops("R-WEP"); 358 if (!new_crypt->ops) { 359 request_module("rtllib_crypt_wep"); 360 new_crypt->ops = lib80211_get_crypto_ops("R-WEP"); 361 } 362 363 if (new_crypt->ops) 364 new_crypt->priv = new_crypt->ops->init(key); 365 366 if (!new_crypt->ops || !new_crypt->priv) { 367 kfree(new_crypt); 368 new_crypt = NULL; 369 370 netdev_warn(dev, 371 "%s: could not initialize WEP: load module rtllib_crypt_wep\n", 372 dev->name); 373 return -EOPNOTSUPP; 374 } 375 *crypt = new_crypt; 376 } 377 378 /* If a new key was provided, set it up */ 379 if (erq->length > 0) { 380 len = erq->length <= 5 ? 5 : 13; 381 memcpy(sec.keys[key], keybuf, erq->length); 382 if (len > erq->length) 383 memset(sec.keys[key] + erq->length, 0, 384 len - erq->length); 385 netdev_dbg(ieee->dev, "Setting key %d to '%s' (%d:%d bytes)\n", 386 key, escape_essid(sec.keys[key], len), erq->length, 387 len); 388 sec.key_sizes[key] = len; 389 (*crypt)->ops->set_key(sec.keys[key], len, NULL, 390 (*crypt)->priv); 391 sec.flags |= (1 << key); 392 /* This ensures a key will be activated if no key is 393 * explicitly set 394 */ 395 if (key == sec.active_key) 396 sec.flags |= SEC_ACTIVE_KEY; 397 ieee->crypt_info.tx_keyidx = key; 398 399 } else { 400 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, 401 NULL, (*crypt)->priv); 402 if (len == 0) { 403 /* Set a default key of all 0 */ 404 netdev_info(ieee->dev, "Setting key %d to all zero.\n", key); 405 406 memset(sec.keys[key], 0, 13); 407 (*crypt)->ops->set_key(sec.keys[key], 13, NULL, 408 (*crypt)->priv); 409 sec.key_sizes[key] = 13; 410 sec.flags |= (1 << key); 411 } 412 413 /* No key data - just set the default TX key index */ 414 if (key_provided) { 415 netdev_dbg(ieee->dev, 416 "Setting key %d as default Tx key.\n", key); 417 ieee->crypt_info.tx_keyidx = key; 418 sec.active_key = key; 419 sec.flags |= SEC_ACTIVE_KEY; 420 } 421 } 422 done: 423 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); 424 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : 425 WLAN_AUTH_SHARED_KEY; 426 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY; 427 sec.flags |= SEC_AUTH_MODE; 428 netdev_dbg(ieee->dev, "Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ? 429 "OPEN" : "SHARED KEY"); 430 431 /* For now we just support WEP, so only set that security level... 432 * TODO: When WPA is added this is one place that needs to change 433 */ 434 sec.flags |= SEC_LEVEL; 435 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ 436 437 if (ieee->set_security) 438 ieee->set_security(dev, &sec); 439 440 /* Do not reset port if card is in Managed mode since resetting will 441 * generate new IEEE 802.11 authentication which may end up in looping 442 * with IEEE 802.1X. If your hardware requires a reset after WEP 443 * configuration (for example... Prism2), implement the reset_port in 444 * the callbacks structures used to initialize the 802.11 stack. 445 */ 446 if (ieee->reset_on_keychange && 447 ieee->iw_mode != IW_MODE_INFRA && 448 ieee->reset_port && ieee->reset_port(dev)) { 449 netdev_dbg(dev, "%s: reset_port failed\n", dev->name); 450 return -EINVAL; 451 } 452 return 0; 453 } 454 EXPORT_SYMBOL(rtllib_wx_set_encode); 455 456 int rtllib_wx_get_encode(struct rtllib_device *ieee, 457 struct iw_request_info *info, 458 union iwreq_data *wrqu, char *keybuf) 459 { 460 struct iw_point *erq = &(wrqu->encoding); 461 int len, key; 462 struct lib80211_crypt_data *crypt; 463 464 if (ieee->iw_mode == IW_MODE_MONITOR) 465 return -1; 466 467 key = erq->flags & IW_ENCODE_INDEX; 468 if (key) { 469 if (key > NUM_WEP_KEYS) 470 return -EINVAL; 471 key--; 472 } else { 473 key = ieee->crypt_info.tx_keyidx; 474 } 475 crypt = ieee->crypt_info.crypt[key]; 476 477 erq->flags = key + 1; 478 479 if (!crypt || !crypt->ops) { 480 erq->length = 0; 481 erq->flags |= IW_ENCODE_DISABLED; 482 return 0; 483 } 484 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv); 485 486 erq->length = max(len, 0); 487 488 erq->flags |= IW_ENCODE_ENABLED; 489 490 if (ieee->open_wep) 491 erq->flags |= IW_ENCODE_OPEN; 492 else 493 erq->flags |= IW_ENCODE_RESTRICTED; 494 495 return 0; 496 } 497 EXPORT_SYMBOL(rtllib_wx_get_encode); 498 499 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee, 500 struct iw_request_info *info, 501 union iwreq_data *wrqu, char *extra) 502 { 503 int ret = 0; 504 struct net_device *dev = ieee->dev; 505 struct iw_point *encoding = &wrqu->encoding; 506 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; 507 int i, idx; 508 int group_key = 0; 509 const char *alg, *module; 510 struct lib80211_crypto_ops *ops; 511 struct lib80211_crypt_data **crypt; 512 513 struct rtllib_security sec = { 514 .flags = 0, 515 }; 516 idx = encoding->flags & IW_ENCODE_INDEX; 517 if (idx) { 518 if (idx < 1 || idx > NUM_WEP_KEYS) 519 return -EINVAL; 520 idx--; 521 } else { 522 idx = ieee->crypt_info.tx_keyidx; 523 } 524 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) { 525 crypt = &ieee->crypt_info.crypt[idx]; 526 group_key = 1; 527 } else { 528 /* some Cisco APs use idx>0 for unicast in dynamic WEP */ 529 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP) 530 return -EINVAL; 531 if (ieee->iw_mode == IW_MODE_INFRA) 532 crypt = &ieee->crypt_info.crypt[idx]; 533 else 534 return -EINVAL; 535 } 536 537 sec.flags |= SEC_ENABLED; 538 if ((encoding->flags & IW_ENCODE_DISABLED) || 539 ext->alg == IW_ENCODE_ALG_NONE) { 540 if (*crypt) 541 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 542 543 for (i = 0; i < NUM_WEP_KEYS; i++) { 544 if (ieee->crypt_info.crypt[i]) 545 break; 546 } 547 if (i == NUM_WEP_KEYS) { 548 sec.enabled = 0; 549 sec.level = SEC_LEVEL_0; 550 sec.flags |= SEC_LEVEL; 551 } 552 goto done; 553 } 554 555 sec.enabled = 1; 556 switch (ext->alg) { 557 case IW_ENCODE_ALG_WEP: 558 alg = "R-WEP"; 559 module = "rtllib_crypt_wep"; 560 break; 561 case IW_ENCODE_ALG_TKIP: 562 alg = "R-TKIP"; 563 module = "rtllib_crypt_tkip"; 564 break; 565 case IW_ENCODE_ALG_CCMP: 566 alg = "R-CCMP"; 567 module = "rtllib_crypt_ccmp"; 568 break; 569 default: 570 netdev_dbg(ieee->dev, "Unknown crypto alg %d\n", ext->alg); 571 ret = -EINVAL; 572 goto done; 573 } 574 netdev_dbg(dev, "alg name:%s\n", alg); 575 576 ops = lib80211_get_crypto_ops(alg); 577 if (!ops) { 578 char tempbuf[100]; 579 580 memset(tempbuf, 0x00, 100); 581 sprintf(tempbuf, "%s", module); 582 request_module("%s", tempbuf); 583 ops = lib80211_get_crypto_ops(alg); 584 } 585 if (!ops) { 586 netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg); 587 ret = -EINVAL; 588 goto done; 589 } 590 591 if (!*crypt || (*crypt)->ops != ops) { 592 struct lib80211_crypt_data *new_crypt; 593 594 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); 595 596 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); 597 if (!new_crypt) { 598 ret = -ENOMEM; 599 goto done; 600 } 601 new_crypt->ops = ops; 602 if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) 603 new_crypt->priv = new_crypt->ops->init(idx); 604 605 if (!new_crypt->priv) { 606 kfree(new_crypt); 607 ret = -EINVAL; 608 goto done; 609 } 610 *crypt = new_crypt; 611 612 } 613 614 if (ext->key_len > 0 && (*crypt)->ops->set_key && 615 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, 616 (*crypt)->priv) < 0) { 617 netdev_info(dev, "key setting failed\n"); 618 ret = -EINVAL; 619 goto done; 620 } 621 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { 622 ieee->crypt_info.tx_keyidx = idx; 623 sec.active_key = idx; 624 sec.flags |= SEC_ACTIVE_KEY; 625 } 626 if (ext->alg != IW_ENCODE_ALG_NONE) { 627 sec.key_sizes[idx] = ext->key_len; 628 sec.flags |= (1 << idx); 629 if (ext->alg == IW_ENCODE_ALG_WEP) { 630 sec.flags |= SEC_LEVEL; 631 sec.level = SEC_LEVEL_1; 632 } else if (ext->alg == IW_ENCODE_ALG_TKIP) { 633 sec.flags |= SEC_LEVEL; 634 sec.level = SEC_LEVEL_2; 635 } else if (ext->alg == IW_ENCODE_ALG_CCMP) { 636 sec.flags |= SEC_LEVEL; 637 sec.level = SEC_LEVEL_3; 638 } 639 /* Don't set sec level for group keys. */ 640 if (group_key) 641 sec.flags &= ~SEC_LEVEL; 642 } 643 done: 644 if (ieee->set_security) 645 ieee->set_security(ieee->dev, &sec); 646 647 if (ieee->reset_on_keychange && 648 ieee->iw_mode != IW_MODE_INFRA && 649 ieee->reset_port && ieee->reset_port(dev)) { 650 netdev_dbg(ieee->dev, "Port reset failed\n"); 651 return -EINVAL; 652 } 653 return ret; 654 } 655 EXPORT_SYMBOL(rtllib_wx_set_encode_ext); 656 657 int rtllib_wx_set_mlme(struct rtllib_device *ieee, 658 struct iw_request_info *info, 659 union iwreq_data *wrqu, char *extra) 660 { 661 u8 i = 0; 662 bool deauth = false; 663 struct iw_mlme *mlme = (struct iw_mlme *)extra; 664 665 if (ieee->state != RTLLIB_LINKED) 666 return -ENOLINK; 667 668 mutex_lock(&ieee->wx_mutex); 669 670 switch (mlme->cmd) { 671 case IW_MLME_DEAUTH: 672 deauth = true; 673 fallthrough; 674 case IW_MLME_DISASSOC: 675 if (deauth) 676 netdev_info(ieee->dev, "disauth packet !\n"); 677 else 678 netdev_info(ieee->dev, "dis associate packet!\n"); 679 680 ieee->cannot_notify = true; 681 682 SendDisassociation(ieee, deauth, mlme->reason_code); 683 rtllib_disassociate(ieee); 684 685 ieee->wap_set = 0; 686 for (i = 0; i < 6; i++) 687 ieee->current_network.bssid[i] = 0x55; 688 689 ieee->ssid_set = 0; 690 ieee->current_network.ssid[0] = '\0'; 691 ieee->current_network.ssid_len = 0; 692 break; 693 default: 694 mutex_unlock(&ieee->wx_mutex); 695 return -EOPNOTSUPP; 696 } 697 698 mutex_unlock(&ieee->wx_mutex); 699 700 return 0; 701 } 702 EXPORT_SYMBOL(rtllib_wx_set_mlme); 703 704 int rtllib_wx_set_auth(struct rtllib_device *ieee, 705 struct iw_request_info *info, 706 struct iw_param *data, char *extra) 707 { 708 switch (data->flags & IW_AUTH_INDEX) { 709 case IW_AUTH_WPA_VERSION: 710 break; 711 case IW_AUTH_CIPHER_PAIRWISE: 712 case IW_AUTH_CIPHER_GROUP: 713 case IW_AUTH_KEY_MGMT: 714 /* Host AP driver does not use these parameters and allows 715 * wpa_supplicant to control them internally. 716 */ 717 break; 718 case IW_AUTH_TKIP_COUNTERMEASURES: 719 ieee->tkip_countermeasures = data->value; 720 break; 721 case IW_AUTH_DROP_UNENCRYPTED: 722 ieee->drop_unencrypted = data->value; 723 break; 724 725 case IW_AUTH_80211_AUTH_ALG: 726 if (data->value & IW_AUTH_ALG_SHARED_KEY) { 727 ieee->open_wep = 0; 728 ieee->auth_mode = 1; 729 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) { 730 ieee->open_wep = 1; 731 ieee->auth_mode = 0; 732 } else if (data->value & IW_AUTH_ALG_LEAP) { 733 ieee->open_wep = 1; 734 ieee->auth_mode = 2; 735 } else 736 return -EINVAL; 737 break; 738 739 case IW_AUTH_WPA_ENABLED: 740 ieee->wpa_enabled = (data->value) ? 1 : 0; 741 break; 742 743 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 744 ieee->ieee802_1x = data->value; 745 break; 746 case IW_AUTH_PRIVACY_INVOKED: 747 ieee->privacy_invoked = data->value; 748 break; 749 default: 750 return -EOPNOTSUPP; 751 } 752 return 0; 753 } 754 EXPORT_SYMBOL(rtllib_wx_set_auth); 755 756 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len) 757 { 758 u8 *buf; 759 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04}; 760 761 if (len > MAX_WPA_IE_LEN || (len && !ie)) 762 return -EINVAL; 763 764 if (len) { 765 eid = ie[0]; 766 if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2], wps_oui, 4))) { 767 ieee->wps_ie_len = min_t(size_t, len, MAX_WZC_IE_LEN); 768 buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL); 769 if (!buf) 770 return -ENOMEM; 771 ieee->wps_ie = buf; 772 return 0; 773 } 774 } 775 ieee->wps_ie_len = 0; 776 kfree(ieee->wps_ie); 777 ieee->wps_ie = NULL; 778 if (len) { 779 if (len != ie[1]+2) 780 return -EINVAL; 781 buf = kmemdup(ie, len, GFP_KERNEL); 782 if (!buf) 783 return -ENOMEM; 784 kfree(ieee->wpa_ie); 785 ieee->wpa_ie = buf; 786 ieee->wpa_ie_len = len; 787 } else { 788 kfree(ieee->wpa_ie); 789 ieee->wpa_ie = NULL; 790 ieee->wpa_ie_len = 0; 791 } 792 return 0; 793 } 794 EXPORT_SYMBOL(rtllib_wx_set_gen_ie); 795