1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * cfg80211 - wext compat code 4 * 5 * This is temporary code until all wireless functionality is migrated 6 * into cfg80211, when that happens all the exports here go away and 7 * we directly assign the wireless handlers of wireless interfaces. 8 * 9 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net> 10 * Copyright (C) 2019 Intel Corporation 11 */ 12 13 #include <linux/export.h> 14 #include <linux/wireless.h> 15 #include <linux/nl80211.h> 16 #include <linux/if_arp.h> 17 #include <linux/etherdevice.h> 18 #include <linux/slab.h> 19 #include <net/iw_handler.h> 20 #include <net/cfg80211.h> 21 #include <net/cfg80211-wext.h> 22 #include "wext-compat.h" 23 #include "core.h" 24 #include "rdev-ops.h" 25 26 int cfg80211_wext_giwname(struct net_device *dev, 27 struct iw_request_info *info, 28 char *name, char *extra) 29 { 30 strcpy(name, "IEEE 802.11"); 31 return 0; 32 } 33 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname); 34 35 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 36 u32 *mode, char *extra) 37 { 38 struct wireless_dev *wdev = dev->ieee80211_ptr; 39 struct cfg80211_registered_device *rdev; 40 struct vif_params vifparams; 41 enum nl80211_iftype type; 42 43 rdev = wiphy_to_rdev(wdev->wiphy); 44 45 switch (*mode) { 46 case IW_MODE_INFRA: 47 type = NL80211_IFTYPE_STATION; 48 break; 49 case IW_MODE_ADHOC: 50 type = NL80211_IFTYPE_ADHOC; 51 break; 52 case IW_MODE_REPEAT: 53 type = NL80211_IFTYPE_WDS; 54 break; 55 case IW_MODE_MONITOR: 56 type = NL80211_IFTYPE_MONITOR; 57 break; 58 default: 59 return -EINVAL; 60 } 61 62 if (type == wdev->iftype) 63 return 0; 64 65 memset(&vifparams, 0, sizeof(vifparams)); 66 67 return cfg80211_change_iface(rdev, dev, type, &vifparams); 68 } 69 EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode); 70 71 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 72 u32 *mode, char *extra) 73 { 74 struct wireless_dev *wdev = dev->ieee80211_ptr; 75 76 if (!wdev) 77 return -EOPNOTSUPP; 78 79 switch (wdev->iftype) { 80 case NL80211_IFTYPE_AP: 81 *mode = IW_MODE_MASTER; 82 break; 83 case NL80211_IFTYPE_STATION: 84 *mode = IW_MODE_INFRA; 85 break; 86 case NL80211_IFTYPE_ADHOC: 87 *mode = IW_MODE_ADHOC; 88 break; 89 case NL80211_IFTYPE_MONITOR: 90 *mode = IW_MODE_MONITOR; 91 break; 92 case NL80211_IFTYPE_WDS: 93 *mode = IW_MODE_REPEAT; 94 break; 95 case NL80211_IFTYPE_AP_VLAN: 96 *mode = IW_MODE_SECOND; /* FIXME */ 97 break; 98 default: 99 *mode = IW_MODE_AUTO; 100 break; 101 } 102 return 0; 103 } 104 EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode); 105 106 107 int cfg80211_wext_giwrange(struct net_device *dev, 108 struct iw_request_info *info, 109 struct iw_point *data, char *extra) 110 { 111 struct wireless_dev *wdev = dev->ieee80211_ptr; 112 struct iw_range *range = (struct iw_range *) extra; 113 enum nl80211_band band; 114 int i, c = 0; 115 116 if (!wdev) 117 return -EOPNOTSUPP; 118 119 data->length = sizeof(struct iw_range); 120 memset(range, 0, sizeof(struct iw_range)); 121 122 range->we_version_compiled = WIRELESS_EXT; 123 range->we_version_source = 21; 124 range->retry_capa = IW_RETRY_LIMIT; 125 range->retry_flags = IW_RETRY_LIMIT; 126 range->min_retry = 0; 127 range->max_retry = 255; 128 range->min_rts = 0; 129 range->max_rts = 2347; 130 range->min_frag = 256; 131 range->max_frag = 2346; 132 133 range->max_encoding_tokens = 4; 134 135 range->max_qual.updated = IW_QUAL_NOISE_INVALID; 136 137 switch (wdev->wiphy->signal_type) { 138 case CFG80211_SIGNAL_TYPE_NONE: 139 break; 140 case CFG80211_SIGNAL_TYPE_MBM: 141 range->max_qual.level = (u8)-110; 142 range->max_qual.qual = 70; 143 range->avg_qual.qual = 35; 144 range->max_qual.updated |= IW_QUAL_DBM; 145 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 146 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 147 break; 148 case CFG80211_SIGNAL_TYPE_UNSPEC: 149 range->max_qual.level = 100; 150 range->max_qual.qual = 100; 151 range->avg_qual.qual = 50; 152 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 153 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 154 break; 155 } 156 157 range->avg_qual.level = range->max_qual.level / 2; 158 range->avg_qual.noise = range->max_qual.noise / 2; 159 range->avg_qual.updated = range->max_qual.updated; 160 161 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { 162 switch (wdev->wiphy->cipher_suites[i]) { 163 case WLAN_CIPHER_SUITE_TKIP: 164 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | 165 IW_ENC_CAPA_WPA); 166 break; 167 168 case WLAN_CIPHER_SUITE_CCMP: 169 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | 170 IW_ENC_CAPA_WPA2); 171 break; 172 173 case WLAN_CIPHER_SUITE_WEP40: 174 range->encoding_size[range->num_encoding_sizes++] = 175 WLAN_KEY_LEN_WEP40; 176 break; 177 178 case WLAN_CIPHER_SUITE_WEP104: 179 range->encoding_size[range->num_encoding_sizes++] = 180 WLAN_KEY_LEN_WEP104; 181 break; 182 } 183 } 184 185 for (band = 0; band < NUM_NL80211_BANDS; band ++) { 186 struct ieee80211_supported_band *sband; 187 188 sband = wdev->wiphy->bands[band]; 189 190 if (!sband) 191 continue; 192 193 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { 194 struct ieee80211_channel *chan = &sband->channels[i]; 195 196 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { 197 range->freq[c].i = 198 ieee80211_frequency_to_channel( 199 chan->center_freq); 200 range->freq[c].m = chan->center_freq; 201 range->freq[c].e = 6; 202 c++; 203 } 204 } 205 } 206 range->num_channels = c; 207 range->num_frequency = c; 208 209 IW_EVENT_CAPA_SET_KERNEL(range->event_capa); 210 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); 211 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); 212 213 if (wdev->wiphy->max_scan_ssids > 0) 214 range->scan_capa |= IW_SCAN_CAPA_ESSID; 215 216 return 0; 217 } 218 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange); 219 220 221 /** 222 * cfg80211_wext_freq - get wext frequency for non-"auto" 223 * @freq: the wext freq encoding 224 * 225 * Returns a frequency, or a negative error code, or 0 for auto. 226 */ 227 int cfg80211_wext_freq(struct iw_freq *freq) 228 { 229 /* 230 * Parse frequency - return 0 for auto and 231 * -EINVAL for impossible things. 232 */ 233 if (freq->e == 0) { 234 enum nl80211_band band = NL80211_BAND_2GHZ; 235 if (freq->m < 0) 236 return 0; 237 if (freq->m > 14) 238 band = NL80211_BAND_5GHZ; 239 return ieee80211_channel_to_frequency(freq->m, band); 240 } else { 241 int i, div = 1000000; 242 for (i = 0; i < freq->e; i++) 243 div /= 10; 244 if (div <= 0) 245 return -EINVAL; 246 return freq->m / div; 247 } 248 } 249 250 int cfg80211_wext_siwrts(struct net_device *dev, 251 struct iw_request_info *info, 252 struct iw_param *rts, char *extra) 253 { 254 struct wireless_dev *wdev = dev->ieee80211_ptr; 255 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 256 u32 orts = wdev->wiphy->rts_threshold; 257 int err; 258 259 if (rts->disabled || !rts->fixed) 260 wdev->wiphy->rts_threshold = (u32) -1; 261 else if (rts->value < 0) 262 return -EINVAL; 263 else 264 wdev->wiphy->rts_threshold = rts->value; 265 266 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD); 267 if (err) 268 wdev->wiphy->rts_threshold = orts; 269 270 return err; 271 } 272 EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts); 273 274 int cfg80211_wext_giwrts(struct net_device *dev, 275 struct iw_request_info *info, 276 struct iw_param *rts, char *extra) 277 { 278 struct wireless_dev *wdev = dev->ieee80211_ptr; 279 280 rts->value = wdev->wiphy->rts_threshold; 281 rts->disabled = rts->value == (u32) -1; 282 rts->fixed = 1; 283 284 return 0; 285 } 286 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts); 287 288 int cfg80211_wext_siwfrag(struct net_device *dev, 289 struct iw_request_info *info, 290 struct iw_param *frag, char *extra) 291 { 292 struct wireless_dev *wdev = dev->ieee80211_ptr; 293 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 294 u32 ofrag = wdev->wiphy->frag_threshold; 295 int err; 296 297 if (frag->disabled || !frag->fixed) 298 wdev->wiphy->frag_threshold = (u32) -1; 299 else if (frag->value < 256) 300 return -EINVAL; 301 else { 302 /* Fragment length must be even, so strip LSB. */ 303 wdev->wiphy->frag_threshold = frag->value & ~0x1; 304 } 305 306 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD); 307 if (err) 308 wdev->wiphy->frag_threshold = ofrag; 309 310 return err; 311 } 312 EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag); 313 314 int cfg80211_wext_giwfrag(struct net_device *dev, 315 struct iw_request_info *info, 316 struct iw_param *frag, char *extra) 317 { 318 struct wireless_dev *wdev = dev->ieee80211_ptr; 319 320 frag->value = wdev->wiphy->frag_threshold; 321 frag->disabled = frag->value == (u32) -1; 322 frag->fixed = 1; 323 324 return 0; 325 } 326 EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag); 327 328 static int cfg80211_wext_siwretry(struct net_device *dev, 329 struct iw_request_info *info, 330 struct iw_param *retry, char *extra) 331 { 332 struct wireless_dev *wdev = dev->ieee80211_ptr; 333 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 334 u32 changed = 0; 335 u8 olong = wdev->wiphy->retry_long; 336 u8 oshort = wdev->wiphy->retry_short; 337 int err; 338 339 if (retry->disabled || retry->value < 1 || retry->value > 255 || 340 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 341 return -EINVAL; 342 343 if (retry->flags & IW_RETRY_LONG) { 344 wdev->wiphy->retry_long = retry->value; 345 changed |= WIPHY_PARAM_RETRY_LONG; 346 } else if (retry->flags & IW_RETRY_SHORT) { 347 wdev->wiphy->retry_short = retry->value; 348 changed |= WIPHY_PARAM_RETRY_SHORT; 349 } else { 350 wdev->wiphy->retry_short = retry->value; 351 wdev->wiphy->retry_long = retry->value; 352 changed |= WIPHY_PARAM_RETRY_LONG; 353 changed |= WIPHY_PARAM_RETRY_SHORT; 354 } 355 356 err = rdev_set_wiphy_params(rdev, changed); 357 if (err) { 358 wdev->wiphy->retry_short = oshort; 359 wdev->wiphy->retry_long = olong; 360 } 361 362 return err; 363 } 364 365 int cfg80211_wext_giwretry(struct net_device *dev, 366 struct iw_request_info *info, 367 struct iw_param *retry, char *extra) 368 { 369 struct wireless_dev *wdev = dev->ieee80211_ptr; 370 371 retry->disabled = 0; 372 373 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 374 /* 375 * First return short value, iwconfig will ask long value 376 * later if needed 377 */ 378 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT; 379 retry->value = wdev->wiphy->retry_short; 380 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short) 381 retry->flags |= IW_RETRY_LONG; 382 383 return 0; 384 } 385 386 if (retry->flags & IW_RETRY_LONG) { 387 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 388 retry->value = wdev->wiphy->retry_long; 389 } 390 391 return 0; 392 } 393 EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry); 394 395 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 396 struct net_device *dev, bool pairwise, 397 const u8 *addr, bool remove, bool tx_key, 398 int idx, struct key_params *params) 399 { 400 struct wireless_dev *wdev = dev->ieee80211_ptr; 401 int err, i; 402 bool rejoin = false; 403 404 if (pairwise && !addr) 405 return -EINVAL; 406 407 /* 408 * In many cases we won't actually need this, but it's better 409 * to do it first in case the allocation fails. Don't use wext. 410 */ 411 if (!wdev->wext.keys) { 412 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 413 GFP_KERNEL); 414 if (!wdev->wext.keys) 415 return -ENOMEM; 416 for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++) 417 wdev->wext.keys->params[i].key = 418 wdev->wext.keys->data[i]; 419 } 420 421 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 422 wdev->iftype != NL80211_IFTYPE_STATION) 423 return -EOPNOTSUPP; 424 425 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 426 if (!wdev->current_bss) 427 return -ENOLINK; 428 429 if (!rdev->ops->set_default_mgmt_key) 430 return -EOPNOTSUPP; 431 432 if (idx < 4 || idx > 5) 433 return -EINVAL; 434 } else if (idx < 0 || idx > 3) 435 return -EINVAL; 436 437 if (remove) { 438 err = 0; 439 if (wdev->current_bss) { 440 /* 441 * If removing the current TX key, we will need to 442 * join a new IBSS without the privacy bit clear. 443 */ 444 if (idx == wdev->wext.default_key && 445 wdev->iftype == NL80211_IFTYPE_ADHOC) { 446 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 447 rejoin = true; 448 } 449 450 if (!pairwise && addr && 451 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 452 err = -ENOENT; 453 else 454 err = rdev_del_key(rdev, dev, idx, pairwise, 455 addr); 456 } 457 wdev->wext.connect.privacy = false; 458 /* 459 * Applications using wireless extensions expect to be 460 * able to delete keys that don't exist, so allow that. 461 */ 462 if (err == -ENOENT) 463 err = 0; 464 if (!err) { 465 if (!addr && idx < 4) { 466 memset(wdev->wext.keys->data[idx], 0, 467 sizeof(wdev->wext.keys->data[idx])); 468 wdev->wext.keys->params[idx].key_len = 0; 469 wdev->wext.keys->params[idx].cipher = 0; 470 } 471 if (idx == wdev->wext.default_key) 472 wdev->wext.default_key = -1; 473 else if (idx == wdev->wext.default_mgmt_key) 474 wdev->wext.default_mgmt_key = -1; 475 } 476 477 if (!err && rejoin) 478 err = cfg80211_ibss_wext_join(rdev, wdev); 479 480 return err; 481 } 482 483 if (addr) 484 tx_key = false; 485 486 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 487 return -EINVAL; 488 489 err = 0; 490 if (wdev->current_bss) 491 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params); 492 else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 && 493 params->cipher != WLAN_CIPHER_SUITE_WEP104) 494 return -EINVAL; 495 if (err) 496 return err; 497 498 /* 499 * We only need to store WEP keys, since they're the only keys that 500 * can be set before a connection is established and persist after 501 * disconnecting. 502 */ 503 if (!addr && (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 504 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 505 wdev->wext.keys->params[idx] = *params; 506 memcpy(wdev->wext.keys->data[idx], 507 params->key, params->key_len); 508 wdev->wext.keys->params[idx].key = 509 wdev->wext.keys->data[idx]; 510 } 511 512 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 513 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 514 (tx_key || (!addr && wdev->wext.default_key == -1))) { 515 if (wdev->current_bss) { 516 /* 517 * If we are getting a new TX key from not having 518 * had one before we need to join a new IBSS with 519 * the privacy bit set. 520 */ 521 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 522 wdev->wext.default_key == -1) { 523 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 524 rejoin = true; 525 } 526 err = rdev_set_default_key(rdev, dev, idx, true, true); 527 } 528 if (!err) { 529 wdev->wext.default_key = idx; 530 if (rejoin) 531 err = cfg80211_ibss_wext_join(rdev, wdev); 532 } 533 return err; 534 } 535 536 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 537 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 538 if (wdev->current_bss) 539 err = rdev_set_default_mgmt_key(rdev, dev, idx); 540 if (!err) 541 wdev->wext.default_mgmt_key = idx; 542 return err; 543 } 544 545 return 0; 546 } 547 548 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 549 struct net_device *dev, bool pairwise, 550 const u8 *addr, bool remove, bool tx_key, 551 int idx, struct key_params *params) 552 { 553 int err; 554 555 wdev_lock(dev->ieee80211_ptr); 556 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 557 remove, tx_key, idx, params); 558 wdev_unlock(dev->ieee80211_ptr); 559 560 return err; 561 } 562 563 static int cfg80211_wext_siwencode(struct net_device *dev, 564 struct iw_request_info *info, 565 struct iw_point *erq, char *keybuf) 566 { 567 struct wireless_dev *wdev = dev->ieee80211_ptr; 568 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 569 int idx, err; 570 bool remove = false; 571 struct key_params params; 572 573 if (wdev->iftype != NL80211_IFTYPE_STATION && 574 wdev->iftype != NL80211_IFTYPE_ADHOC) 575 return -EOPNOTSUPP; 576 577 /* no use -- only MFP (set_default_mgmt_key) is optional */ 578 if (!rdev->ops->del_key || 579 !rdev->ops->add_key || 580 !rdev->ops->set_default_key) 581 return -EOPNOTSUPP; 582 583 idx = erq->flags & IW_ENCODE_INDEX; 584 if (idx == 0) { 585 idx = wdev->wext.default_key; 586 if (idx < 0) 587 idx = 0; 588 } else if (idx < 1 || idx > 4) 589 return -EINVAL; 590 else 591 idx--; 592 593 if (erq->flags & IW_ENCODE_DISABLED) 594 remove = true; 595 else if (erq->length == 0) { 596 /* No key data - just set the default TX key index */ 597 err = 0; 598 wdev_lock(wdev); 599 if (wdev->current_bss) 600 err = rdev_set_default_key(rdev, dev, idx, true, 601 true); 602 if (!err) 603 wdev->wext.default_key = idx; 604 wdev_unlock(wdev); 605 return err; 606 } 607 608 memset(¶ms, 0, sizeof(params)); 609 params.key = keybuf; 610 params.key_len = erq->length; 611 if (erq->length == 5) 612 params.cipher = WLAN_CIPHER_SUITE_WEP40; 613 else if (erq->length == 13) 614 params.cipher = WLAN_CIPHER_SUITE_WEP104; 615 else if (!remove) 616 return -EINVAL; 617 618 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 619 wdev->wext.default_key == -1, 620 idx, ¶ms); 621 } 622 623 static int cfg80211_wext_siwencodeext(struct net_device *dev, 624 struct iw_request_info *info, 625 struct iw_point *erq, char *extra) 626 { 627 struct wireless_dev *wdev = dev->ieee80211_ptr; 628 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 629 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 630 const u8 *addr; 631 int idx; 632 bool remove = false; 633 struct key_params params; 634 u32 cipher; 635 636 if (wdev->iftype != NL80211_IFTYPE_STATION && 637 wdev->iftype != NL80211_IFTYPE_ADHOC) 638 return -EOPNOTSUPP; 639 640 /* no use -- only MFP (set_default_mgmt_key) is optional */ 641 if (!rdev->ops->del_key || 642 !rdev->ops->add_key || 643 !rdev->ops->set_default_key) 644 return -EOPNOTSUPP; 645 646 switch (ext->alg) { 647 case IW_ENCODE_ALG_NONE: 648 remove = true; 649 cipher = 0; 650 break; 651 case IW_ENCODE_ALG_WEP: 652 if (ext->key_len == 5) 653 cipher = WLAN_CIPHER_SUITE_WEP40; 654 else if (ext->key_len == 13) 655 cipher = WLAN_CIPHER_SUITE_WEP104; 656 else 657 return -EINVAL; 658 break; 659 case IW_ENCODE_ALG_TKIP: 660 cipher = WLAN_CIPHER_SUITE_TKIP; 661 break; 662 case IW_ENCODE_ALG_CCMP: 663 cipher = WLAN_CIPHER_SUITE_CCMP; 664 break; 665 case IW_ENCODE_ALG_AES_CMAC: 666 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 667 break; 668 default: 669 return -EOPNOTSUPP; 670 } 671 672 if (erq->flags & IW_ENCODE_DISABLED) 673 remove = true; 674 675 idx = erq->flags & IW_ENCODE_INDEX; 676 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 677 if (idx < 4 || idx > 5) { 678 idx = wdev->wext.default_mgmt_key; 679 if (idx < 0) 680 return -EINVAL; 681 } else 682 idx--; 683 } else { 684 if (idx < 1 || idx > 4) { 685 idx = wdev->wext.default_key; 686 if (idx < 0) 687 return -EINVAL; 688 } else 689 idx--; 690 } 691 692 addr = ext->addr.sa_data; 693 if (is_broadcast_ether_addr(addr)) 694 addr = NULL; 695 696 memset(¶ms, 0, sizeof(params)); 697 params.key = ext->key; 698 params.key_len = ext->key_len; 699 params.cipher = cipher; 700 701 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 702 params.seq = ext->rx_seq; 703 params.seq_len = 6; 704 } 705 706 return cfg80211_set_encryption( 707 rdev, dev, 708 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 709 addr, remove, 710 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 711 idx, ¶ms); 712 } 713 714 static int cfg80211_wext_giwencode(struct net_device *dev, 715 struct iw_request_info *info, 716 struct iw_point *erq, char *keybuf) 717 { 718 struct wireless_dev *wdev = dev->ieee80211_ptr; 719 int idx; 720 721 if (wdev->iftype != NL80211_IFTYPE_STATION && 722 wdev->iftype != NL80211_IFTYPE_ADHOC) 723 return -EOPNOTSUPP; 724 725 idx = erq->flags & IW_ENCODE_INDEX; 726 if (idx == 0) { 727 idx = wdev->wext.default_key; 728 if (idx < 0) 729 idx = 0; 730 } else if (idx < 1 || idx > 4) 731 return -EINVAL; 732 else 733 idx--; 734 735 erq->flags = idx + 1; 736 737 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 738 erq->flags |= IW_ENCODE_DISABLED; 739 erq->length = 0; 740 return 0; 741 } 742 743 erq->length = min_t(size_t, erq->length, 744 wdev->wext.keys->params[idx].key_len); 745 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 746 erq->flags |= IW_ENCODE_ENABLED; 747 748 return 0; 749 } 750 751 static int cfg80211_wext_siwfreq(struct net_device *dev, 752 struct iw_request_info *info, 753 struct iw_freq *wextfreq, char *extra) 754 { 755 struct wireless_dev *wdev = dev->ieee80211_ptr; 756 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 757 struct cfg80211_chan_def chandef = { 758 .width = NL80211_CHAN_WIDTH_20_NOHT, 759 }; 760 int freq; 761 762 switch (wdev->iftype) { 763 case NL80211_IFTYPE_STATION: 764 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 765 case NL80211_IFTYPE_ADHOC: 766 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 767 case NL80211_IFTYPE_MONITOR: 768 freq = cfg80211_wext_freq(wextfreq); 769 if (freq < 0) 770 return freq; 771 if (freq == 0) 772 return -EINVAL; 773 chandef.center_freq1 = freq; 774 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 775 if (!chandef.chan) 776 return -EINVAL; 777 return cfg80211_set_monitor_channel(rdev, &chandef); 778 case NL80211_IFTYPE_MESH_POINT: 779 freq = cfg80211_wext_freq(wextfreq); 780 if (freq < 0) 781 return freq; 782 if (freq == 0) 783 return -EINVAL; 784 chandef.center_freq1 = freq; 785 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 786 if (!chandef.chan) 787 return -EINVAL; 788 return cfg80211_set_mesh_channel(rdev, wdev, &chandef); 789 default: 790 return -EOPNOTSUPP; 791 } 792 } 793 794 static int cfg80211_wext_giwfreq(struct net_device *dev, 795 struct iw_request_info *info, 796 struct iw_freq *freq, char *extra) 797 { 798 struct wireless_dev *wdev = dev->ieee80211_ptr; 799 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 800 struct cfg80211_chan_def chandef = {}; 801 int ret; 802 803 switch (wdev->iftype) { 804 case NL80211_IFTYPE_STATION: 805 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 806 case NL80211_IFTYPE_ADHOC: 807 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 808 case NL80211_IFTYPE_MONITOR: 809 if (!rdev->ops->get_channel) 810 return -EINVAL; 811 812 ret = rdev_get_channel(rdev, wdev, &chandef); 813 if (ret) 814 return ret; 815 freq->m = chandef.chan->center_freq; 816 freq->e = 6; 817 return 0; 818 default: 819 return -EINVAL; 820 } 821 } 822 823 static int cfg80211_wext_siwtxpower(struct net_device *dev, 824 struct iw_request_info *info, 825 union iwreq_data *data, char *extra) 826 { 827 struct wireless_dev *wdev = dev->ieee80211_ptr; 828 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 829 enum nl80211_tx_power_setting type; 830 int dbm = 0; 831 832 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 833 return -EINVAL; 834 if (data->txpower.flags & IW_TXPOW_RANGE) 835 return -EINVAL; 836 837 if (!rdev->ops->set_tx_power) 838 return -EOPNOTSUPP; 839 840 /* only change when not disabling */ 841 if (!data->txpower.disabled) { 842 rfkill_set_sw_state(rdev->rfkill, false); 843 844 if (data->txpower.fixed) { 845 /* 846 * wext doesn't support negative values, see 847 * below where it's for automatic 848 */ 849 if (data->txpower.value < 0) 850 return -EINVAL; 851 dbm = data->txpower.value; 852 type = NL80211_TX_POWER_FIXED; 853 /* TODO: do regulatory check! */ 854 } else { 855 /* 856 * Automatic power level setting, max being the value 857 * passed in from userland. 858 */ 859 if (data->txpower.value < 0) { 860 type = NL80211_TX_POWER_AUTOMATIC; 861 } else { 862 dbm = data->txpower.value; 863 type = NL80211_TX_POWER_LIMITED; 864 } 865 } 866 } else { 867 if (rfkill_set_sw_state(rdev->rfkill, true)) 868 schedule_work(&rdev->rfkill_block); 869 return 0; 870 } 871 872 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); 873 } 874 875 static int cfg80211_wext_giwtxpower(struct net_device *dev, 876 struct iw_request_info *info, 877 union iwreq_data *data, char *extra) 878 { 879 struct wireless_dev *wdev = dev->ieee80211_ptr; 880 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 881 int err, val; 882 883 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 884 return -EINVAL; 885 if (data->txpower.flags & IW_TXPOW_RANGE) 886 return -EINVAL; 887 888 if (!rdev->ops->get_tx_power) 889 return -EOPNOTSUPP; 890 891 err = rdev_get_tx_power(rdev, wdev, &val); 892 if (err) 893 return err; 894 895 /* well... oh well */ 896 data->txpower.fixed = 1; 897 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 898 data->txpower.value = val; 899 data->txpower.flags = IW_TXPOW_DBM; 900 901 return 0; 902 } 903 904 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 905 s32 auth_alg) 906 { 907 int nr_alg = 0; 908 909 if (!auth_alg) 910 return -EINVAL; 911 912 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 913 IW_AUTH_ALG_SHARED_KEY | 914 IW_AUTH_ALG_LEAP)) 915 return -EINVAL; 916 917 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 918 nr_alg++; 919 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 920 } 921 922 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 923 nr_alg++; 924 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 925 } 926 927 if (auth_alg & IW_AUTH_ALG_LEAP) { 928 nr_alg++; 929 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 930 } 931 932 if (nr_alg > 1) 933 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 934 935 return 0; 936 } 937 938 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 939 { 940 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 941 IW_AUTH_WPA_VERSION_WPA2| 942 IW_AUTH_WPA_VERSION_DISABLED)) 943 return -EINVAL; 944 945 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 946 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 947 IW_AUTH_WPA_VERSION_WPA2))) 948 return -EINVAL; 949 950 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 951 wdev->wext.connect.crypto.wpa_versions &= 952 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 953 954 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 955 wdev->wext.connect.crypto.wpa_versions |= 956 NL80211_WPA_VERSION_1; 957 958 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 959 wdev->wext.connect.crypto.wpa_versions |= 960 NL80211_WPA_VERSION_2; 961 962 return 0; 963 } 964 965 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 966 { 967 if (cipher & IW_AUTH_CIPHER_WEP40) 968 wdev->wext.connect.crypto.cipher_group = 969 WLAN_CIPHER_SUITE_WEP40; 970 else if (cipher & IW_AUTH_CIPHER_WEP104) 971 wdev->wext.connect.crypto.cipher_group = 972 WLAN_CIPHER_SUITE_WEP104; 973 else if (cipher & IW_AUTH_CIPHER_TKIP) 974 wdev->wext.connect.crypto.cipher_group = 975 WLAN_CIPHER_SUITE_TKIP; 976 else if (cipher & IW_AUTH_CIPHER_CCMP) 977 wdev->wext.connect.crypto.cipher_group = 978 WLAN_CIPHER_SUITE_CCMP; 979 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 980 wdev->wext.connect.crypto.cipher_group = 981 WLAN_CIPHER_SUITE_AES_CMAC; 982 else if (cipher & IW_AUTH_CIPHER_NONE) 983 wdev->wext.connect.crypto.cipher_group = 0; 984 else 985 return -EINVAL; 986 987 return 0; 988 } 989 990 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 991 { 992 int nr_ciphers = 0; 993 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 994 995 if (cipher & IW_AUTH_CIPHER_WEP40) { 996 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 997 nr_ciphers++; 998 } 999 1000 if (cipher & IW_AUTH_CIPHER_WEP104) { 1001 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1002 nr_ciphers++; 1003 } 1004 1005 if (cipher & IW_AUTH_CIPHER_TKIP) { 1006 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1007 nr_ciphers++; 1008 } 1009 1010 if (cipher & IW_AUTH_CIPHER_CCMP) { 1011 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1012 nr_ciphers++; 1013 } 1014 1015 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1016 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1017 nr_ciphers++; 1018 } 1019 1020 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1021 1022 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1023 1024 return 0; 1025 } 1026 1027 1028 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1029 { 1030 int nr_akm_suites = 0; 1031 1032 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1033 IW_AUTH_KEY_MGMT_PSK)) 1034 return -EINVAL; 1035 1036 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1037 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1038 WLAN_AKM_SUITE_8021X; 1039 nr_akm_suites++; 1040 } 1041 1042 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1043 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1044 WLAN_AKM_SUITE_PSK; 1045 nr_akm_suites++; 1046 } 1047 1048 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1049 1050 return 0; 1051 } 1052 1053 static int cfg80211_wext_siwauth(struct net_device *dev, 1054 struct iw_request_info *info, 1055 struct iw_param *data, char *extra) 1056 { 1057 struct wireless_dev *wdev = dev->ieee80211_ptr; 1058 1059 if (wdev->iftype != NL80211_IFTYPE_STATION) 1060 return -EOPNOTSUPP; 1061 1062 switch (data->flags & IW_AUTH_INDEX) { 1063 case IW_AUTH_PRIVACY_INVOKED: 1064 wdev->wext.connect.privacy = data->value; 1065 return 0; 1066 case IW_AUTH_WPA_VERSION: 1067 return cfg80211_set_wpa_version(wdev, data->value); 1068 case IW_AUTH_CIPHER_GROUP: 1069 return cfg80211_set_cipher_group(wdev, data->value); 1070 case IW_AUTH_KEY_MGMT: 1071 return cfg80211_set_key_mgt(wdev, data->value); 1072 case IW_AUTH_CIPHER_PAIRWISE: 1073 return cfg80211_set_cipher_pairwise(wdev, data->value); 1074 case IW_AUTH_80211_AUTH_ALG: 1075 return cfg80211_set_auth_alg(wdev, data->value); 1076 case IW_AUTH_WPA_ENABLED: 1077 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1078 case IW_AUTH_DROP_UNENCRYPTED: 1079 case IW_AUTH_MFP: 1080 return 0; 1081 default: 1082 return -EOPNOTSUPP; 1083 } 1084 } 1085 1086 static int cfg80211_wext_giwauth(struct net_device *dev, 1087 struct iw_request_info *info, 1088 struct iw_param *data, char *extra) 1089 { 1090 /* XXX: what do we need? */ 1091 1092 return -EOPNOTSUPP; 1093 } 1094 1095 static int cfg80211_wext_siwpower(struct net_device *dev, 1096 struct iw_request_info *info, 1097 struct iw_param *wrq, char *extra) 1098 { 1099 struct wireless_dev *wdev = dev->ieee80211_ptr; 1100 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1101 bool ps = wdev->ps; 1102 int timeout = wdev->ps_timeout; 1103 int err; 1104 1105 if (wdev->iftype != NL80211_IFTYPE_STATION) 1106 return -EINVAL; 1107 1108 if (!rdev->ops->set_power_mgmt) 1109 return -EOPNOTSUPP; 1110 1111 if (wrq->disabled) { 1112 ps = false; 1113 } else { 1114 switch (wrq->flags & IW_POWER_MODE) { 1115 case IW_POWER_ON: /* If not specified */ 1116 case IW_POWER_MODE: /* If set all mask */ 1117 case IW_POWER_ALL_R: /* If explicitely state all */ 1118 ps = true; 1119 break; 1120 default: /* Otherwise we ignore */ 1121 return -EINVAL; 1122 } 1123 1124 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1125 return -EINVAL; 1126 1127 if (wrq->flags & IW_POWER_TIMEOUT) 1128 timeout = wrq->value / 1000; 1129 } 1130 1131 err = rdev_set_power_mgmt(rdev, dev, ps, timeout); 1132 if (err) 1133 return err; 1134 1135 wdev->ps = ps; 1136 wdev->ps_timeout = timeout; 1137 1138 return 0; 1139 1140 } 1141 1142 static int cfg80211_wext_giwpower(struct net_device *dev, 1143 struct iw_request_info *info, 1144 struct iw_param *wrq, char *extra) 1145 { 1146 struct wireless_dev *wdev = dev->ieee80211_ptr; 1147 1148 wrq->disabled = !wdev->ps; 1149 1150 return 0; 1151 } 1152 1153 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1154 struct iw_request_info *info, 1155 struct sockaddr *addr, char *extra) 1156 { 1157 struct wireless_dev *wdev = dev->ieee80211_ptr; 1158 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1159 int err; 1160 1161 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1162 return -EINVAL; 1163 1164 if (addr->sa_family != ARPHRD_ETHER) 1165 return -EINVAL; 1166 1167 if (netif_running(dev)) 1168 return -EBUSY; 1169 1170 if (!rdev->ops->set_wds_peer) 1171 return -EOPNOTSUPP; 1172 1173 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data); 1174 if (err) 1175 return err; 1176 1177 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1178 1179 return 0; 1180 } 1181 1182 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1183 struct iw_request_info *info, 1184 struct sockaddr *addr, char *extra) 1185 { 1186 struct wireless_dev *wdev = dev->ieee80211_ptr; 1187 1188 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1189 return -EINVAL; 1190 1191 addr->sa_family = ARPHRD_ETHER; 1192 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1193 1194 return 0; 1195 } 1196 1197 static int cfg80211_wext_siwrate(struct net_device *dev, 1198 struct iw_request_info *info, 1199 struct iw_param *rate, char *extra) 1200 { 1201 struct wireless_dev *wdev = dev->ieee80211_ptr; 1202 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1203 struct cfg80211_bitrate_mask mask; 1204 u32 fixed, maxrate; 1205 struct ieee80211_supported_band *sband; 1206 int band, ridx; 1207 bool match = false; 1208 1209 if (!rdev->ops->set_bitrate_mask) 1210 return -EOPNOTSUPP; 1211 1212 memset(&mask, 0, sizeof(mask)); 1213 fixed = 0; 1214 maxrate = (u32)-1; 1215 1216 if (rate->value < 0) { 1217 /* nothing */ 1218 } else if (rate->fixed) { 1219 fixed = rate->value / 100000; 1220 } else { 1221 maxrate = rate->value / 100000; 1222 } 1223 1224 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1225 sband = wdev->wiphy->bands[band]; 1226 if (sband == NULL) 1227 continue; 1228 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1229 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1230 if (fixed == srate->bitrate) { 1231 mask.control[band].legacy = 1 << ridx; 1232 match = true; 1233 break; 1234 } 1235 if (srate->bitrate <= maxrate) { 1236 mask.control[band].legacy |= 1 << ridx; 1237 match = true; 1238 } 1239 } 1240 } 1241 1242 if (!match) 1243 return -EINVAL; 1244 1245 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); 1246 } 1247 1248 static int cfg80211_wext_giwrate(struct net_device *dev, 1249 struct iw_request_info *info, 1250 struct iw_param *rate, char *extra) 1251 { 1252 struct wireless_dev *wdev = dev->ieee80211_ptr; 1253 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1254 struct station_info sinfo = {}; 1255 u8 addr[ETH_ALEN]; 1256 int err; 1257 1258 if (wdev->iftype != NL80211_IFTYPE_STATION) 1259 return -EOPNOTSUPP; 1260 1261 if (!rdev->ops->get_station) 1262 return -EOPNOTSUPP; 1263 1264 err = 0; 1265 wdev_lock(wdev); 1266 if (wdev->current_bss) 1267 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1268 else 1269 err = -EOPNOTSUPP; 1270 wdev_unlock(wdev); 1271 if (err) 1272 return err; 1273 1274 err = rdev_get_station(rdev, dev, addr, &sinfo); 1275 if (err) 1276 return err; 1277 1278 if (!(sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))) { 1279 err = -EOPNOTSUPP; 1280 goto free; 1281 } 1282 1283 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1284 1285 free: 1286 cfg80211_sinfo_release_content(&sinfo); 1287 return err; 1288 } 1289 1290 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1291 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1292 { 1293 struct wireless_dev *wdev = dev->ieee80211_ptr; 1294 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1295 /* we are under RTNL - globally locked - so can use static structs */ 1296 static struct iw_statistics wstats; 1297 static struct station_info sinfo = {}; 1298 u8 bssid[ETH_ALEN]; 1299 1300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1301 return NULL; 1302 1303 if (!rdev->ops->get_station) 1304 return NULL; 1305 1306 /* Grab BSSID of current BSS, if any */ 1307 wdev_lock(wdev); 1308 if (!wdev->current_bss) { 1309 wdev_unlock(wdev); 1310 return NULL; 1311 } 1312 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1313 wdev_unlock(wdev); 1314 1315 memset(&sinfo, 0, sizeof(sinfo)); 1316 1317 if (rdev_get_station(rdev, dev, bssid, &sinfo)) 1318 return NULL; 1319 1320 memset(&wstats, 0, sizeof(wstats)); 1321 1322 switch (rdev->wiphy.signal_type) { 1323 case CFG80211_SIGNAL_TYPE_MBM: 1324 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) { 1325 int sig = sinfo.signal; 1326 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1327 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1328 wstats.qual.updated |= IW_QUAL_DBM; 1329 wstats.qual.level = sig; 1330 if (sig < -110) 1331 sig = -110; 1332 else if (sig > -40) 1333 sig = -40; 1334 wstats.qual.qual = sig + 110; 1335 break; 1336 } 1337 fallthrough; 1338 case CFG80211_SIGNAL_TYPE_UNSPEC: 1339 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) { 1340 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1341 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1342 wstats.qual.level = sinfo.signal; 1343 wstats.qual.qual = sinfo.signal; 1344 break; 1345 } 1346 fallthrough; 1347 default: 1348 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1349 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1350 } 1351 1352 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1353 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC)) 1354 wstats.discard.misc = sinfo.rx_dropped_misc; 1355 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_FAILED)) 1356 wstats.discard.retries = sinfo.tx_failed; 1357 1358 cfg80211_sinfo_release_content(&sinfo); 1359 1360 return &wstats; 1361 } 1362 1363 static int cfg80211_wext_siwap(struct net_device *dev, 1364 struct iw_request_info *info, 1365 struct sockaddr *ap_addr, char *extra) 1366 { 1367 struct wireless_dev *wdev = dev->ieee80211_ptr; 1368 1369 switch (wdev->iftype) { 1370 case NL80211_IFTYPE_ADHOC: 1371 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1372 case NL80211_IFTYPE_STATION: 1373 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1374 case NL80211_IFTYPE_WDS: 1375 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1376 default: 1377 return -EOPNOTSUPP; 1378 } 1379 } 1380 1381 static int cfg80211_wext_giwap(struct net_device *dev, 1382 struct iw_request_info *info, 1383 struct sockaddr *ap_addr, char *extra) 1384 { 1385 struct wireless_dev *wdev = dev->ieee80211_ptr; 1386 1387 switch (wdev->iftype) { 1388 case NL80211_IFTYPE_ADHOC: 1389 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1390 case NL80211_IFTYPE_STATION: 1391 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1392 case NL80211_IFTYPE_WDS: 1393 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1394 default: 1395 return -EOPNOTSUPP; 1396 } 1397 } 1398 1399 static int cfg80211_wext_siwessid(struct net_device *dev, 1400 struct iw_request_info *info, 1401 struct iw_point *data, char *ssid) 1402 { 1403 struct wireless_dev *wdev = dev->ieee80211_ptr; 1404 1405 switch (wdev->iftype) { 1406 case NL80211_IFTYPE_ADHOC: 1407 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1408 case NL80211_IFTYPE_STATION: 1409 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1410 default: 1411 return -EOPNOTSUPP; 1412 } 1413 } 1414 1415 static int cfg80211_wext_giwessid(struct net_device *dev, 1416 struct iw_request_info *info, 1417 struct iw_point *data, char *ssid) 1418 { 1419 struct wireless_dev *wdev = dev->ieee80211_ptr; 1420 1421 data->flags = 0; 1422 data->length = 0; 1423 1424 switch (wdev->iftype) { 1425 case NL80211_IFTYPE_ADHOC: 1426 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1427 case NL80211_IFTYPE_STATION: 1428 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1429 default: 1430 return -EOPNOTSUPP; 1431 } 1432 } 1433 1434 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1435 struct iw_request_info *info, 1436 struct iw_point *data, char *extra) 1437 { 1438 struct wireless_dev *wdev = dev->ieee80211_ptr; 1439 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1440 struct cfg80211_pmksa cfg_pmksa; 1441 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1442 1443 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1444 1445 if (wdev->iftype != NL80211_IFTYPE_STATION) 1446 return -EINVAL; 1447 1448 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1449 cfg_pmksa.pmkid = pmksa->pmkid; 1450 1451 switch (pmksa->cmd) { 1452 case IW_PMKSA_ADD: 1453 if (!rdev->ops->set_pmksa) 1454 return -EOPNOTSUPP; 1455 1456 return rdev_set_pmksa(rdev, dev, &cfg_pmksa); 1457 1458 case IW_PMKSA_REMOVE: 1459 if (!rdev->ops->del_pmksa) 1460 return -EOPNOTSUPP; 1461 1462 return rdev_del_pmksa(rdev, dev, &cfg_pmksa); 1463 1464 case IW_PMKSA_FLUSH: 1465 if (!rdev->ops->flush_pmksa) 1466 return -EOPNOTSUPP; 1467 1468 return rdev_flush_pmksa(rdev, dev); 1469 1470 default: 1471 return -EOPNOTSUPP; 1472 } 1473 } 1474 1475 static const iw_handler cfg80211_handlers[] = { 1476 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1477 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1478 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1479 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1480 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1481 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1482 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1483 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1484 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1485 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1486 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1487 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1488 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1489 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1490 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1491 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1492 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1493 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1494 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1495 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1496 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1497 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1498 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1499 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1500 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1501 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1502 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1503 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1504 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1505 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1506 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1507 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1508 }; 1509 1510 const struct iw_handler_def cfg80211_wext_handler = { 1511 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1512 .standard = cfg80211_handlers, 1513 .get_wireless_stats = cfg80211_wireless_stats, 1514 }; 1515