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