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 * @dev: the net device 224 * @freq: the wext freq encoding 225 * 226 * Returns a frequency, or a negative error code, or 0 for auto. 227 */ 228 int cfg80211_wext_freq(struct iw_freq *freq) 229 { 230 /* 231 * Parse frequency - return 0 for auto and 232 * -EINVAL for impossible things. 233 */ 234 if (freq->e == 0) { 235 enum nl80211_band band = NL80211_BAND_2GHZ; 236 if (freq->m < 0) 237 return 0; 238 if (freq->m > 14) 239 band = NL80211_BAND_5GHZ; 240 return ieee80211_channel_to_frequency(freq->m, band); 241 } else { 242 int i, div = 1000000; 243 for (i = 0; i < freq->e; i++) 244 div /= 10; 245 if (div <= 0) 246 return -EINVAL; 247 return freq->m / div; 248 } 249 } 250 251 int cfg80211_wext_siwrts(struct net_device *dev, 252 struct iw_request_info *info, 253 struct iw_param *rts, char *extra) 254 { 255 struct wireless_dev *wdev = dev->ieee80211_ptr; 256 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 257 u32 orts = wdev->wiphy->rts_threshold; 258 int err; 259 260 if (rts->disabled || !rts->fixed) 261 wdev->wiphy->rts_threshold = (u32) -1; 262 else if (rts->value < 0) 263 return -EINVAL; 264 else 265 wdev->wiphy->rts_threshold = rts->value; 266 267 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD); 268 if (err) 269 wdev->wiphy->rts_threshold = orts; 270 271 return err; 272 } 273 EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts); 274 275 int cfg80211_wext_giwrts(struct net_device *dev, 276 struct iw_request_info *info, 277 struct iw_param *rts, char *extra) 278 { 279 struct wireless_dev *wdev = dev->ieee80211_ptr; 280 281 rts->value = wdev->wiphy->rts_threshold; 282 rts->disabled = rts->value == (u32) -1; 283 rts->fixed = 1; 284 285 return 0; 286 } 287 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts); 288 289 int cfg80211_wext_siwfrag(struct net_device *dev, 290 struct iw_request_info *info, 291 struct iw_param *frag, char *extra) 292 { 293 struct wireless_dev *wdev = dev->ieee80211_ptr; 294 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 295 u32 ofrag = wdev->wiphy->frag_threshold; 296 int err; 297 298 if (frag->disabled || !frag->fixed) 299 wdev->wiphy->frag_threshold = (u32) -1; 300 else if (frag->value < 256) 301 return -EINVAL; 302 else { 303 /* Fragment length must be even, so strip LSB. */ 304 wdev->wiphy->frag_threshold = frag->value & ~0x1; 305 } 306 307 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD); 308 if (err) 309 wdev->wiphy->frag_threshold = ofrag; 310 311 return err; 312 } 313 EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag); 314 315 int cfg80211_wext_giwfrag(struct net_device *dev, 316 struct iw_request_info *info, 317 struct iw_param *frag, char *extra) 318 { 319 struct wireless_dev *wdev = dev->ieee80211_ptr; 320 321 frag->value = wdev->wiphy->frag_threshold; 322 frag->disabled = frag->value == (u32) -1; 323 frag->fixed = 1; 324 325 return 0; 326 } 327 EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag); 328 329 static int cfg80211_wext_siwretry(struct net_device *dev, 330 struct iw_request_info *info, 331 struct iw_param *retry, char *extra) 332 { 333 struct wireless_dev *wdev = dev->ieee80211_ptr; 334 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 335 u32 changed = 0; 336 u8 olong = wdev->wiphy->retry_long; 337 u8 oshort = wdev->wiphy->retry_short; 338 int err; 339 340 if (retry->disabled || retry->value < 1 || retry->value > 255 || 341 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 342 return -EINVAL; 343 344 if (retry->flags & IW_RETRY_LONG) { 345 wdev->wiphy->retry_long = retry->value; 346 changed |= WIPHY_PARAM_RETRY_LONG; 347 } else if (retry->flags & IW_RETRY_SHORT) { 348 wdev->wiphy->retry_short = retry->value; 349 changed |= WIPHY_PARAM_RETRY_SHORT; 350 } else { 351 wdev->wiphy->retry_short = retry->value; 352 wdev->wiphy->retry_long = retry->value; 353 changed |= WIPHY_PARAM_RETRY_LONG; 354 changed |= WIPHY_PARAM_RETRY_SHORT; 355 } 356 357 err = rdev_set_wiphy_params(rdev, changed); 358 if (err) { 359 wdev->wiphy->retry_short = oshort; 360 wdev->wiphy->retry_long = olong; 361 } 362 363 return err; 364 } 365 366 int cfg80211_wext_giwretry(struct net_device *dev, 367 struct iw_request_info *info, 368 struct iw_param *retry, char *extra) 369 { 370 struct wireless_dev *wdev = dev->ieee80211_ptr; 371 372 retry->disabled = 0; 373 374 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 375 /* 376 * First return short value, iwconfig will ask long value 377 * later if needed 378 */ 379 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT; 380 retry->value = wdev->wiphy->retry_short; 381 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short) 382 retry->flags |= IW_RETRY_LONG; 383 384 return 0; 385 } 386 387 if (retry->flags & IW_RETRY_LONG) { 388 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 389 retry->value = wdev->wiphy->retry_long; 390 } 391 392 return 0; 393 } 394 EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry); 395 396 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 397 struct net_device *dev, bool pairwise, 398 const u8 *addr, bool remove, bool tx_key, 399 int idx, struct key_params *params) 400 { 401 struct wireless_dev *wdev = dev->ieee80211_ptr; 402 int err, i; 403 bool rejoin = false; 404 405 if (pairwise && !addr) 406 return -EINVAL; 407 408 /* 409 * In many cases we won't actually need this, but it's better 410 * to do it first in case the allocation fails. Don't use wext. 411 */ 412 if (!wdev->wext.keys) { 413 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 414 GFP_KERNEL); 415 if (!wdev->wext.keys) 416 return -ENOMEM; 417 for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++) 418 wdev->wext.keys->params[i].key = 419 wdev->wext.keys->data[i]; 420 } 421 422 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 423 wdev->iftype != NL80211_IFTYPE_STATION) 424 return -EOPNOTSUPP; 425 426 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 427 if (!wdev->current_bss) 428 return -ENOLINK; 429 430 if (!rdev->ops->set_default_mgmt_key) 431 return -EOPNOTSUPP; 432 433 if (idx < 4 || idx > 5) 434 return -EINVAL; 435 } else if (idx < 0 || idx > 3) 436 return -EINVAL; 437 438 if (remove) { 439 err = 0; 440 if (wdev->current_bss) { 441 /* 442 * If removing the current TX key, we will need to 443 * join a new IBSS without the privacy bit clear. 444 */ 445 if (idx == wdev->wext.default_key && 446 wdev->iftype == NL80211_IFTYPE_ADHOC) { 447 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 448 rejoin = true; 449 } 450 451 if (!pairwise && addr && 452 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 453 err = -ENOENT; 454 else 455 err = rdev_del_key(rdev, dev, idx, pairwise, 456 addr); 457 } 458 wdev->wext.connect.privacy = false; 459 /* 460 * Applications using wireless extensions expect to be 461 * able to delete keys that don't exist, so allow that. 462 */ 463 if (err == -ENOENT) 464 err = 0; 465 if (!err) { 466 if (!addr && idx < 4) { 467 memset(wdev->wext.keys->data[idx], 0, 468 sizeof(wdev->wext.keys->data[idx])); 469 wdev->wext.keys->params[idx].key_len = 0; 470 wdev->wext.keys->params[idx].cipher = 0; 471 } 472 if (idx == wdev->wext.default_key) 473 wdev->wext.default_key = -1; 474 else if (idx == wdev->wext.default_mgmt_key) 475 wdev->wext.default_mgmt_key = -1; 476 } 477 478 if (!err && rejoin) 479 err = cfg80211_ibss_wext_join(rdev, wdev); 480 481 return err; 482 } 483 484 if (addr) 485 tx_key = false; 486 487 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 488 return -EINVAL; 489 490 err = 0; 491 if (wdev->current_bss) 492 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params); 493 else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 && 494 params->cipher != WLAN_CIPHER_SUITE_WEP104) 495 return -EINVAL; 496 if (err) 497 return err; 498 499 /* 500 * We only need to store WEP keys, since they're the only keys that 501 * can be be set before a connection is established and persist after 502 * disconnecting. 503 */ 504 if (!addr && (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 505 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 506 wdev->wext.keys->params[idx] = *params; 507 memcpy(wdev->wext.keys->data[idx], 508 params->key, params->key_len); 509 wdev->wext.keys->params[idx].key = 510 wdev->wext.keys->data[idx]; 511 } 512 513 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 514 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 515 (tx_key || (!addr && wdev->wext.default_key == -1))) { 516 if (wdev->current_bss) { 517 /* 518 * If we are getting a new TX key from not having 519 * had one before we need to join a new IBSS with 520 * the privacy bit set. 521 */ 522 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 523 wdev->wext.default_key == -1) { 524 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 525 rejoin = true; 526 } 527 err = rdev_set_default_key(rdev, dev, idx, true, true); 528 } 529 if (!err) { 530 wdev->wext.default_key = idx; 531 if (rejoin) 532 err = cfg80211_ibss_wext_join(rdev, wdev); 533 } 534 return err; 535 } 536 537 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 538 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 539 if (wdev->current_bss) 540 err = rdev_set_default_mgmt_key(rdev, dev, idx); 541 if (!err) 542 wdev->wext.default_mgmt_key = idx; 543 return err; 544 } 545 546 return 0; 547 } 548 549 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 550 struct net_device *dev, bool pairwise, 551 const u8 *addr, bool remove, bool tx_key, 552 int idx, struct key_params *params) 553 { 554 int err; 555 556 wdev_lock(dev->ieee80211_ptr); 557 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 558 remove, tx_key, idx, params); 559 wdev_unlock(dev->ieee80211_ptr); 560 561 return err; 562 } 563 564 static int cfg80211_wext_siwencode(struct net_device *dev, 565 struct iw_request_info *info, 566 struct iw_point *erq, char *keybuf) 567 { 568 struct wireless_dev *wdev = dev->ieee80211_ptr; 569 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 570 int idx, err; 571 bool remove = false; 572 struct key_params params; 573 574 if (wdev->iftype != NL80211_IFTYPE_STATION && 575 wdev->iftype != NL80211_IFTYPE_ADHOC) 576 return -EOPNOTSUPP; 577 578 /* no use -- only MFP (set_default_mgmt_key) is optional */ 579 if (!rdev->ops->del_key || 580 !rdev->ops->add_key || 581 !rdev->ops->set_default_key) 582 return -EOPNOTSUPP; 583 584 idx = erq->flags & IW_ENCODE_INDEX; 585 if (idx == 0) { 586 idx = wdev->wext.default_key; 587 if (idx < 0) 588 idx = 0; 589 } else if (idx < 1 || idx > 4) 590 return -EINVAL; 591 else 592 idx--; 593 594 if (erq->flags & IW_ENCODE_DISABLED) 595 remove = true; 596 else if (erq->length == 0) { 597 /* No key data - just set the default TX key index */ 598 err = 0; 599 wdev_lock(wdev); 600 if (wdev->current_bss) 601 err = rdev_set_default_key(rdev, dev, idx, true, 602 true); 603 if (!err) 604 wdev->wext.default_key = idx; 605 wdev_unlock(wdev); 606 return err; 607 } 608 609 memset(¶ms, 0, sizeof(params)); 610 params.key = keybuf; 611 params.key_len = erq->length; 612 if (erq->length == 5) 613 params.cipher = WLAN_CIPHER_SUITE_WEP40; 614 else if (erq->length == 13) 615 params.cipher = WLAN_CIPHER_SUITE_WEP104; 616 else if (!remove) 617 return -EINVAL; 618 619 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 620 wdev->wext.default_key == -1, 621 idx, ¶ms); 622 } 623 624 static int cfg80211_wext_siwencodeext(struct net_device *dev, 625 struct iw_request_info *info, 626 struct iw_point *erq, char *extra) 627 { 628 struct wireless_dev *wdev = dev->ieee80211_ptr; 629 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 630 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 631 const u8 *addr; 632 int idx; 633 bool remove = false; 634 struct key_params params; 635 u32 cipher; 636 637 if (wdev->iftype != NL80211_IFTYPE_STATION && 638 wdev->iftype != NL80211_IFTYPE_ADHOC) 639 return -EOPNOTSUPP; 640 641 /* no use -- only MFP (set_default_mgmt_key) is optional */ 642 if (!rdev->ops->del_key || 643 !rdev->ops->add_key || 644 !rdev->ops->set_default_key) 645 return -EOPNOTSUPP; 646 647 switch (ext->alg) { 648 case IW_ENCODE_ALG_NONE: 649 remove = true; 650 cipher = 0; 651 break; 652 case IW_ENCODE_ALG_WEP: 653 if (ext->key_len == 5) 654 cipher = WLAN_CIPHER_SUITE_WEP40; 655 else if (ext->key_len == 13) 656 cipher = WLAN_CIPHER_SUITE_WEP104; 657 else 658 return -EINVAL; 659 break; 660 case IW_ENCODE_ALG_TKIP: 661 cipher = WLAN_CIPHER_SUITE_TKIP; 662 break; 663 case IW_ENCODE_ALG_CCMP: 664 cipher = WLAN_CIPHER_SUITE_CCMP; 665 break; 666 case IW_ENCODE_ALG_AES_CMAC: 667 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 668 break; 669 default: 670 return -EOPNOTSUPP; 671 } 672 673 if (erq->flags & IW_ENCODE_DISABLED) 674 remove = true; 675 676 idx = erq->flags & IW_ENCODE_INDEX; 677 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 678 if (idx < 4 || idx > 5) { 679 idx = wdev->wext.default_mgmt_key; 680 if (idx < 0) 681 return -EINVAL; 682 } else 683 idx--; 684 } else { 685 if (idx < 1 || idx > 4) { 686 idx = wdev->wext.default_key; 687 if (idx < 0) 688 return -EINVAL; 689 } else 690 idx--; 691 } 692 693 addr = ext->addr.sa_data; 694 if (is_broadcast_ether_addr(addr)) 695 addr = NULL; 696 697 memset(¶ms, 0, sizeof(params)); 698 params.key = ext->key; 699 params.key_len = ext->key_len; 700 params.cipher = cipher; 701 702 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 703 params.seq = ext->rx_seq; 704 params.seq_len = 6; 705 } 706 707 return cfg80211_set_encryption( 708 rdev, dev, 709 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 710 addr, remove, 711 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 712 idx, ¶ms); 713 } 714 715 static int cfg80211_wext_giwencode(struct net_device *dev, 716 struct iw_request_info *info, 717 struct iw_point *erq, char *keybuf) 718 { 719 struct wireless_dev *wdev = dev->ieee80211_ptr; 720 int idx; 721 722 if (wdev->iftype != NL80211_IFTYPE_STATION && 723 wdev->iftype != NL80211_IFTYPE_ADHOC) 724 return -EOPNOTSUPP; 725 726 idx = erq->flags & IW_ENCODE_INDEX; 727 if (idx == 0) { 728 idx = wdev->wext.default_key; 729 if (idx < 0) 730 idx = 0; 731 } else if (idx < 1 || idx > 4) 732 return -EINVAL; 733 else 734 idx--; 735 736 erq->flags = idx + 1; 737 738 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 739 erq->flags |= IW_ENCODE_DISABLED; 740 erq->length = 0; 741 return 0; 742 } 743 744 erq->length = min_t(size_t, erq->length, 745 wdev->wext.keys->params[idx].key_len); 746 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 747 erq->flags |= IW_ENCODE_ENABLED; 748 749 return 0; 750 } 751 752 static int cfg80211_wext_siwfreq(struct net_device *dev, 753 struct iw_request_info *info, 754 struct iw_freq *wextfreq, char *extra) 755 { 756 struct wireless_dev *wdev = dev->ieee80211_ptr; 757 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 758 struct cfg80211_chan_def chandef = { 759 .width = NL80211_CHAN_WIDTH_20_NOHT, 760 }; 761 int freq; 762 763 switch (wdev->iftype) { 764 case NL80211_IFTYPE_STATION: 765 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 766 case NL80211_IFTYPE_ADHOC: 767 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 768 case NL80211_IFTYPE_MONITOR: 769 freq = cfg80211_wext_freq(wextfreq); 770 if (freq < 0) 771 return freq; 772 if (freq == 0) 773 return -EINVAL; 774 chandef.center_freq1 = freq; 775 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 776 if (!chandef.chan) 777 return -EINVAL; 778 return cfg80211_set_monitor_channel(rdev, &chandef); 779 case NL80211_IFTYPE_MESH_POINT: 780 freq = cfg80211_wext_freq(wextfreq); 781 if (freq < 0) 782 return freq; 783 if (freq == 0) 784 return -EINVAL; 785 chandef.center_freq1 = freq; 786 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 787 if (!chandef.chan) 788 return -EINVAL; 789 return cfg80211_set_mesh_channel(rdev, wdev, &chandef); 790 default: 791 return -EOPNOTSUPP; 792 } 793 } 794 795 static int cfg80211_wext_giwfreq(struct net_device *dev, 796 struct iw_request_info *info, 797 struct iw_freq *freq, char *extra) 798 { 799 struct wireless_dev *wdev = dev->ieee80211_ptr; 800 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 801 struct cfg80211_chan_def chandef = {}; 802 int ret; 803 804 switch (wdev->iftype) { 805 case NL80211_IFTYPE_STATION: 806 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 807 case NL80211_IFTYPE_ADHOC: 808 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 809 case NL80211_IFTYPE_MONITOR: 810 if (!rdev->ops->get_channel) 811 return -EINVAL; 812 813 ret = rdev_get_channel(rdev, wdev, &chandef); 814 if (ret) 815 return ret; 816 freq->m = chandef.chan->center_freq; 817 freq->e = 6; 818 return 0; 819 default: 820 return -EINVAL; 821 } 822 } 823 824 static int cfg80211_wext_siwtxpower(struct net_device *dev, 825 struct iw_request_info *info, 826 union iwreq_data *data, char *extra) 827 { 828 struct wireless_dev *wdev = dev->ieee80211_ptr; 829 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 830 enum nl80211_tx_power_setting type; 831 int dbm = 0; 832 833 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 834 return -EINVAL; 835 if (data->txpower.flags & IW_TXPOW_RANGE) 836 return -EINVAL; 837 838 if (!rdev->ops->set_tx_power) 839 return -EOPNOTSUPP; 840 841 /* only change when not disabling */ 842 if (!data->txpower.disabled) { 843 rfkill_set_sw_state(rdev->rfkill, false); 844 845 if (data->txpower.fixed) { 846 /* 847 * wext doesn't support negative values, see 848 * below where it's for automatic 849 */ 850 if (data->txpower.value < 0) 851 return -EINVAL; 852 dbm = data->txpower.value; 853 type = NL80211_TX_POWER_FIXED; 854 /* TODO: do regulatory check! */ 855 } else { 856 /* 857 * Automatic power level setting, max being the value 858 * passed in from userland. 859 */ 860 if (data->txpower.value < 0) { 861 type = NL80211_TX_POWER_AUTOMATIC; 862 } else { 863 dbm = data->txpower.value; 864 type = NL80211_TX_POWER_LIMITED; 865 } 866 } 867 } else { 868 if (rfkill_set_sw_state(rdev->rfkill, true)) 869 schedule_work(&rdev->rfkill_block); 870 return 0; 871 } 872 873 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); 874 } 875 876 static int cfg80211_wext_giwtxpower(struct net_device *dev, 877 struct iw_request_info *info, 878 union iwreq_data *data, char *extra) 879 { 880 struct wireless_dev *wdev = dev->ieee80211_ptr; 881 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 882 int err, val; 883 884 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 885 return -EINVAL; 886 if (data->txpower.flags & IW_TXPOW_RANGE) 887 return -EINVAL; 888 889 if (!rdev->ops->get_tx_power) 890 return -EOPNOTSUPP; 891 892 err = rdev_get_tx_power(rdev, wdev, &val); 893 if (err) 894 return err; 895 896 /* well... oh well */ 897 data->txpower.fixed = 1; 898 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 899 data->txpower.value = val; 900 data->txpower.flags = IW_TXPOW_DBM; 901 902 return 0; 903 } 904 905 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 906 s32 auth_alg) 907 { 908 int nr_alg = 0; 909 910 if (!auth_alg) 911 return -EINVAL; 912 913 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 914 IW_AUTH_ALG_SHARED_KEY | 915 IW_AUTH_ALG_LEAP)) 916 return -EINVAL; 917 918 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 919 nr_alg++; 920 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 921 } 922 923 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 924 nr_alg++; 925 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 926 } 927 928 if (auth_alg & IW_AUTH_ALG_LEAP) { 929 nr_alg++; 930 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 931 } 932 933 if (nr_alg > 1) 934 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 935 936 return 0; 937 } 938 939 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 940 { 941 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 942 IW_AUTH_WPA_VERSION_WPA2| 943 IW_AUTH_WPA_VERSION_DISABLED)) 944 return -EINVAL; 945 946 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 947 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 948 IW_AUTH_WPA_VERSION_WPA2))) 949 return -EINVAL; 950 951 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 952 wdev->wext.connect.crypto.wpa_versions &= 953 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 954 955 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 956 wdev->wext.connect.crypto.wpa_versions |= 957 NL80211_WPA_VERSION_1; 958 959 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 960 wdev->wext.connect.crypto.wpa_versions |= 961 NL80211_WPA_VERSION_2; 962 963 return 0; 964 } 965 966 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 967 { 968 if (cipher & IW_AUTH_CIPHER_WEP40) 969 wdev->wext.connect.crypto.cipher_group = 970 WLAN_CIPHER_SUITE_WEP40; 971 else if (cipher & IW_AUTH_CIPHER_WEP104) 972 wdev->wext.connect.crypto.cipher_group = 973 WLAN_CIPHER_SUITE_WEP104; 974 else if (cipher & IW_AUTH_CIPHER_TKIP) 975 wdev->wext.connect.crypto.cipher_group = 976 WLAN_CIPHER_SUITE_TKIP; 977 else if (cipher & IW_AUTH_CIPHER_CCMP) 978 wdev->wext.connect.crypto.cipher_group = 979 WLAN_CIPHER_SUITE_CCMP; 980 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 981 wdev->wext.connect.crypto.cipher_group = 982 WLAN_CIPHER_SUITE_AES_CMAC; 983 else if (cipher & IW_AUTH_CIPHER_NONE) 984 wdev->wext.connect.crypto.cipher_group = 0; 985 else 986 return -EINVAL; 987 988 return 0; 989 } 990 991 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 992 { 993 int nr_ciphers = 0; 994 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 995 996 if (cipher & IW_AUTH_CIPHER_WEP40) { 997 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 998 nr_ciphers++; 999 } 1000 1001 if (cipher & IW_AUTH_CIPHER_WEP104) { 1002 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1003 nr_ciphers++; 1004 } 1005 1006 if (cipher & IW_AUTH_CIPHER_TKIP) { 1007 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1008 nr_ciphers++; 1009 } 1010 1011 if (cipher & IW_AUTH_CIPHER_CCMP) { 1012 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1013 nr_ciphers++; 1014 } 1015 1016 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1017 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1018 nr_ciphers++; 1019 } 1020 1021 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1022 1023 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1024 1025 return 0; 1026 } 1027 1028 1029 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1030 { 1031 int nr_akm_suites = 0; 1032 1033 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1034 IW_AUTH_KEY_MGMT_PSK)) 1035 return -EINVAL; 1036 1037 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1038 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1039 WLAN_AKM_SUITE_8021X; 1040 nr_akm_suites++; 1041 } 1042 1043 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1044 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1045 WLAN_AKM_SUITE_PSK; 1046 nr_akm_suites++; 1047 } 1048 1049 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1050 1051 return 0; 1052 } 1053 1054 static int cfg80211_wext_siwauth(struct net_device *dev, 1055 struct iw_request_info *info, 1056 struct iw_param *data, char *extra) 1057 { 1058 struct wireless_dev *wdev = dev->ieee80211_ptr; 1059 1060 if (wdev->iftype != NL80211_IFTYPE_STATION) 1061 return -EOPNOTSUPP; 1062 1063 switch (data->flags & IW_AUTH_INDEX) { 1064 case IW_AUTH_PRIVACY_INVOKED: 1065 wdev->wext.connect.privacy = data->value; 1066 return 0; 1067 case IW_AUTH_WPA_VERSION: 1068 return cfg80211_set_wpa_version(wdev, data->value); 1069 case IW_AUTH_CIPHER_GROUP: 1070 return cfg80211_set_cipher_group(wdev, data->value); 1071 case IW_AUTH_KEY_MGMT: 1072 return cfg80211_set_key_mgt(wdev, data->value); 1073 case IW_AUTH_CIPHER_PAIRWISE: 1074 return cfg80211_set_cipher_pairwise(wdev, data->value); 1075 case IW_AUTH_80211_AUTH_ALG: 1076 return cfg80211_set_auth_alg(wdev, data->value); 1077 case IW_AUTH_WPA_ENABLED: 1078 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1079 case IW_AUTH_DROP_UNENCRYPTED: 1080 case IW_AUTH_MFP: 1081 return 0; 1082 default: 1083 return -EOPNOTSUPP; 1084 } 1085 } 1086 1087 static int cfg80211_wext_giwauth(struct net_device *dev, 1088 struct iw_request_info *info, 1089 struct iw_param *data, char *extra) 1090 { 1091 /* XXX: what do we need? */ 1092 1093 return -EOPNOTSUPP; 1094 } 1095 1096 static int cfg80211_wext_siwpower(struct net_device *dev, 1097 struct iw_request_info *info, 1098 struct iw_param *wrq, char *extra) 1099 { 1100 struct wireless_dev *wdev = dev->ieee80211_ptr; 1101 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1102 bool ps = wdev->ps; 1103 int timeout = wdev->ps_timeout; 1104 int err; 1105 1106 if (wdev->iftype != NL80211_IFTYPE_STATION) 1107 return -EINVAL; 1108 1109 if (!rdev->ops->set_power_mgmt) 1110 return -EOPNOTSUPP; 1111 1112 if (wrq->disabled) { 1113 ps = false; 1114 } else { 1115 switch (wrq->flags & IW_POWER_MODE) { 1116 case IW_POWER_ON: /* If not specified */ 1117 case IW_POWER_MODE: /* If set all mask */ 1118 case IW_POWER_ALL_R: /* If explicitely state all */ 1119 ps = true; 1120 break; 1121 default: /* Otherwise we ignore */ 1122 return -EINVAL; 1123 } 1124 1125 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1126 return -EINVAL; 1127 1128 if (wrq->flags & IW_POWER_TIMEOUT) 1129 timeout = wrq->value / 1000; 1130 } 1131 1132 err = rdev_set_power_mgmt(rdev, dev, ps, timeout); 1133 if (err) 1134 return err; 1135 1136 wdev->ps = ps; 1137 wdev->ps_timeout = timeout; 1138 1139 return 0; 1140 1141 } 1142 1143 static int cfg80211_wext_giwpower(struct net_device *dev, 1144 struct iw_request_info *info, 1145 struct iw_param *wrq, char *extra) 1146 { 1147 struct wireless_dev *wdev = dev->ieee80211_ptr; 1148 1149 wrq->disabled = !wdev->ps; 1150 1151 return 0; 1152 } 1153 1154 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1155 struct iw_request_info *info, 1156 struct sockaddr *addr, char *extra) 1157 { 1158 struct wireless_dev *wdev = dev->ieee80211_ptr; 1159 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1160 int err; 1161 1162 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1163 return -EINVAL; 1164 1165 if (addr->sa_family != ARPHRD_ETHER) 1166 return -EINVAL; 1167 1168 if (netif_running(dev)) 1169 return -EBUSY; 1170 1171 if (!rdev->ops->set_wds_peer) 1172 return -EOPNOTSUPP; 1173 1174 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data); 1175 if (err) 1176 return err; 1177 1178 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1179 1180 return 0; 1181 } 1182 1183 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1184 struct iw_request_info *info, 1185 struct sockaddr *addr, char *extra) 1186 { 1187 struct wireless_dev *wdev = dev->ieee80211_ptr; 1188 1189 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1190 return -EINVAL; 1191 1192 addr->sa_family = ARPHRD_ETHER; 1193 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1194 1195 return 0; 1196 } 1197 1198 static int cfg80211_wext_siwrate(struct net_device *dev, 1199 struct iw_request_info *info, 1200 struct iw_param *rate, char *extra) 1201 { 1202 struct wireless_dev *wdev = dev->ieee80211_ptr; 1203 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1204 struct cfg80211_bitrate_mask mask; 1205 u32 fixed, maxrate; 1206 struct ieee80211_supported_band *sband; 1207 int band, ridx; 1208 bool match = false; 1209 1210 if (!rdev->ops->set_bitrate_mask) 1211 return -EOPNOTSUPP; 1212 1213 memset(&mask, 0, sizeof(mask)); 1214 fixed = 0; 1215 maxrate = (u32)-1; 1216 1217 if (rate->value < 0) { 1218 /* nothing */ 1219 } else if (rate->fixed) { 1220 fixed = rate->value / 100000; 1221 } else { 1222 maxrate = rate->value / 100000; 1223 } 1224 1225 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1226 sband = wdev->wiphy->bands[band]; 1227 if (sband == NULL) 1228 continue; 1229 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1230 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1231 if (fixed == srate->bitrate) { 1232 mask.control[band].legacy = 1 << ridx; 1233 match = true; 1234 break; 1235 } 1236 if (srate->bitrate <= maxrate) { 1237 mask.control[band].legacy |= 1 << ridx; 1238 match = true; 1239 } 1240 } 1241 } 1242 1243 if (!match) 1244 return -EINVAL; 1245 1246 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); 1247 } 1248 1249 static int cfg80211_wext_giwrate(struct net_device *dev, 1250 struct iw_request_info *info, 1251 struct iw_param *rate, char *extra) 1252 { 1253 struct wireless_dev *wdev = dev->ieee80211_ptr; 1254 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1255 struct station_info sinfo = {}; 1256 u8 addr[ETH_ALEN]; 1257 int err; 1258 1259 if (wdev->iftype != NL80211_IFTYPE_STATION) 1260 return -EOPNOTSUPP; 1261 1262 if (!rdev->ops->get_station) 1263 return -EOPNOTSUPP; 1264 1265 err = 0; 1266 wdev_lock(wdev); 1267 if (wdev->current_bss) 1268 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1269 else 1270 err = -EOPNOTSUPP; 1271 wdev_unlock(wdev); 1272 if (err) 1273 return err; 1274 1275 err = rdev_get_station(rdev, dev, addr, &sinfo); 1276 if (err) 1277 return err; 1278 1279 if (!(sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))) { 1280 err = -EOPNOTSUPP; 1281 goto free; 1282 } 1283 1284 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1285 1286 free: 1287 cfg80211_sinfo_release_content(&sinfo); 1288 return err; 1289 } 1290 1291 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1292 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1293 { 1294 struct wireless_dev *wdev = dev->ieee80211_ptr; 1295 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1296 /* we are under RTNL - globally locked - so can use static structs */ 1297 static struct iw_statistics wstats; 1298 static struct station_info sinfo = {}; 1299 u8 bssid[ETH_ALEN]; 1300 1301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1302 return NULL; 1303 1304 if (!rdev->ops->get_station) 1305 return NULL; 1306 1307 /* Grab BSSID of current BSS, if any */ 1308 wdev_lock(wdev); 1309 if (!wdev->current_bss) { 1310 wdev_unlock(wdev); 1311 return NULL; 1312 } 1313 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1314 wdev_unlock(wdev); 1315 1316 memset(&sinfo, 0, sizeof(sinfo)); 1317 1318 if (rdev_get_station(rdev, dev, bssid, &sinfo)) 1319 return NULL; 1320 1321 memset(&wstats, 0, sizeof(wstats)); 1322 1323 switch (rdev->wiphy.signal_type) { 1324 case CFG80211_SIGNAL_TYPE_MBM: 1325 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) { 1326 int sig = sinfo.signal; 1327 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1328 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1329 wstats.qual.updated |= IW_QUAL_DBM; 1330 wstats.qual.level = sig; 1331 if (sig < -110) 1332 sig = -110; 1333 else if (sig > -40) 1334 sig = -40; 1335 wstats.qual.qual = sig + 110; 1336 break; 1337 } 1338 /* fall through */ 1339 case CFG80211_SIGNAL_TYPE_UNSPEC: 1340 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) { 1341 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1342 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1343 wstats.qual.level = sinfo.signal; 1344 wstats.qual.qual = sinfo.signal; 1345 break; 1346 } 1347 /* fall through */ 1348 default: 1349 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1350 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1351 } 1352 1353 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1354 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC)) 1355 wstats.discard.misc = sinfo.rx_dropped_misc; 1356 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_FAILED)) 1357 wstats.discard.retries = sinfo.tx_failed; 1358 1359 cfg80211_sinfo_release_content(&sinfo); 1360 1361 return &wstats; 1362 } 1363 1364 static int cfg80211_wext_siwap(struct net_device *dev, 1365 struct iw_request_info *info, 1366 struct sockaddr *ap_addr, char *extra) 1367 { 1368 struct wireless_dev *wdev = dev->ieee80211_ptr; 1369 1370 switch (wdev->iftype) { 1371 case NL80211_IFTYPE_ADHOC: 1372 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1373 case NL80211_IFTYPE_STATION: 1374 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1375 case NL80211_IFTYPE_WDS: 1376 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1377 default: 1378 return -EOPNOTSUPP; 1379 } 1380 } 1381 1382 static int cfg80211_wext_giwap(struct net_device *dev, 1383 struct iw_request_info *info, 1384 struct sockaddr *ap_addr, char *extra) 1385 { 1386 struct wireless_dev *wdev = dev->ieee80211_ptr; 1387 1388 switch (wdev->iftype) { 1389 case NL80211_IFTYPE_ADHOC: 1390 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1391 case NL80211_IFTYPE_STATION: 1392 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1393 case NL80211_IFTYPE_WDS: 1394 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1395 default: 1396 return -EOPNOTSUPP; 1397 } 1398 } 1399 1400 static int cfg80211_wext_siwessid(struct net_device *dev, 1401 struct iw_request_info *info, 1402 struct iw_point *data, char *ssid) 1403 { 1404 struct wireless_dev *wdev = dev->ieee80211_ptr; 1405 1406 switch (wdev->iftype) { 1407 case NL80211_IFTYPE_ADHOC: 1408 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1409 case NL80211_IFTYPE_STATION: 1410 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1411 default: 1412 return -EOPNOTSUPP; 1413 } 1414 } 1415 1416 static int cfg80211_wext_giwessid(struct net_device *dev, 1417 struct iw_request_info *info, 1418 struct iw_point *data, char *ssid) 1419 { 1420 struct wireless_dev *wdev = dev->ieee80211_ptr; 1421 1422 data->flags = 0; 1423 data->length = 0; 1424 1425 switch (wdev->iftype) { 1426 case NL80211_IFTYPE_ADHOC: 1427 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1428 case NL80211_IFTYPE_STATION: 1429 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1430 default: 1431 return -EOPNOTSUPP; 1432 } 1433 } 1434 1435 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1436 struct iw_request_info *info, 1437 struct iw_point *data, char *extra) 1438 { 1439 struct wireless_dev *wdev = dev->ieee80211_ptr; 1440 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1441 struct cfg80211_pmksa cfg_pmksa; 1442 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1443 1444 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1445 1446 if (wdev->iftype != NL80211_IFTYPE_STATION) 1447 return -EINVAL; 1448 1449 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1450 cfg_pmksa.pmkid = pmksa->pmkid; 1451 1452 switch (pmksa->cmd) { 1453 case IW_PMKSA_ADD: 1454 if (!rdev->ops->set_pmksa) 1455 return -EOPNOTSUPP; 1456 1457 return rdev_set_pmksa(rdev, dev, &cfg_pmksa); 1458 1459 case IW_PMKSA_REMOVE: 1460 if (!rdev->ops->del_pmksa) 1461 return -EOPNOTSUPP; 1462 1463 return rdev_del_pmksa(rdev, dev, &cfg_pmksa); 1464 1465 case IW_PMKSA_FLUSH: 1466 if (!rdev->ops->flush_pmksa) 1467 return -EOPNOTSUPP; 1468 1469 return rdev_flush_pmksa(rdev, dev); 1470 1471 default: 1472 return -EOPNOTSUPP; 1473 } 1474 } 1475 1476 static const iw_handler cfg80211_handlers[] = { 1477 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1478 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1479 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1480 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1481 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1482 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1483 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1484 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1485 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1486 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1487 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1488 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1489 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1490 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1491 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1492 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1493 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1494 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1495 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1496 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1497 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1498 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1499 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1500 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1501 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1502 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1503 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1504 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1505 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1506 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1507 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1508 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1509 }; 1510 1511 const struct iw_handler_def cfg80211_wext_handler = { 1512 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1513 .standard = cfg80211_handlers, 1514 .get_wireless_stats = cfg80211_wireless_stats, 1515 }; 1516