1 /* 2 * cfg80211 - wext compat code 3 * 4 * This is temporary code until all wireless functionality is migrated 5 * into cfg80211, when that happens all the exports here go away and 6 * we directly assign the wireless handlers of wireless interfaces. 7 * 8 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net> 9 */ 10 11 #include <linux/wireless.h> 12 #include <linux/nl80211.h> 13 #include <linux/if_arp.h> 14 #include <linux/etherdevice.h> 15 #include <linux/slab.h> 16 #include <net/iw_handler.h> 17 #include <net/cfg80211.h> 18 #include "wext-compat.h" 19 #include "core.h" 20 21 int cfg80211_wext_giwname(struct net_device *dev, 22 struct iw_request_info *info, 23 char *name, char *extra) 24 { 25 struct wireless_dev *wdev = dev->ieee80211_ptr; 26 struct ieee80211_supported_band *sband; 27 bool is_ht = false, is_a = false, is_b = false, is_g = false; 28 29 if (!wdev) 30 return -EOPNOTSUPP; 31 32 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ]; 33 if (sband) { 34 is_a = true; 35 is_ht |= sband->ht_cap.ht_supported; 36 } 37 38 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ]; 39 if (sband) { 40 int i; 41 /* Check for mandatory rates */ 42 for (i = 0; i < sband->n_bitrates; i++) { 43 if (sband->bitrates[i].bitrate == 10) 44 is_b = true; 45 if (sband->bitrates[i].bitrate == 60) 46 is_g = true; 47 } 48 is_ht |= sband->ht_cap.ht_supported; 49 } 50 51 strcpy(name, "IEEE 802.11"); 52 if (is_a) 53 strcat(name, "a"); 54 if (is_b) 55 strcat(name, "b"); 56 if (is_g) 57 strcat(name, "g"); 58 if (is_ht) 59 strcat(name, "n"); 60 61 return 0; 62 } 63 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname); 64 65 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 66 u32 *mode, char *extra) 67 { 68 struct wireless_dev *wdev = dev->ieee80211_ptr; 69 struct cfg80211_registered_device *rdev; 70 struct vif_params vifparams; 71 enum nl80211_iftype type; 72 int ret; 73 74 rdev = wiphy_to_dev(wdev->wiphy); 75 76 switch (*mode) { 77 case IW_MODE_INFRA: 78 type = NL80211_IFTYPE_STATION; 79 break; 80 case IW_MODE_ADHOC: 81 type = NL80211_IFTYPE_ADHOC; 82 break; 83 case IW_MODE_REPEAT: 84 type = NL80211_IFTYPE_WDS; 85 break; 86 case IW_MODE_MONITOR: 87 type = NL80211_IFTYPE_MONITOR; 88 break; 89 default: 90 return -EINVAL; 91 } 92 93 if (type == wdev->iftype) 94 return 0; 95 96 memset(&vifparams, 0, sizeof(vifparams)); 97 98 cfg80211_lock_rdev(rdev); 99 ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams); 100 cfg80211_unlock_rdev(rdev); 101 102 return ret; 103 } 104 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode); 105 106 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 107 u32 *mode, char *extra) 108 { 109 struct wireless_dev *wdev = dev->ieee80211_ptr; 110 111 if (!wdev) 112 return -EOPNOTSUPP; 113 114 switch (wdev->iftype) { 115 case NL80211_IFTYPE_AP: 116 *mode = IW_MODE_MASTER; 117 break; 118 case NL80211_IFTYPE_STATION: 119 *mode = IW_MODE_INFRA; 120 break; 121 case NL80211_IFTYPE_ADHOC: 122 *mode = IW_MODE_ADHOC; 123 break; 124 case NL80211_IFTYPE_MONITOR: 125 *mode = IW_MODE_MONITOR; 126 break; 127 case NL80211_IFTYPE_WDS: 128 *mode = IW_MODE_REPEAT; 129 break; 130 case NL80211_IFTYPE_AP_VLAN: 131 *mode = IW_MODE_SECOND; /* FIXME */ 132 break; 133 default: 134 *mode = IW_MODE_AUTO; 135 break; 136 } 137 return 0; 138 } 139 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode); 140 141 142 int cfg80211_wext_giwrange(struct net_device *dev, 143 struct iw_request_info *info, 144 struct iw_point *data, char *extra) 145 { 146 struct wireless_dev *wdev = dev->ieee80211_ptr; 147 struct iw_range *range = (struct iw_range *) extra; 148 enum ieee80211_band band; 149 int i, c = 0; 150 151 if (!wdev) 152 return -EOPNOTSUPP; 153 154 data->length = sizeof(struct iw_range); 155 memset(range, 0, sizeof(struct iw_range)); 156 157 range->we_version_compiled = WIRELESS_EXT; 158 range->we_version_source = 21; 159 range->retry_capa = IW_RETRY_LIMIT; 160 range->retry_flags = IW_RETRY_LIMIT; 161 range->min_retry = 0; 162 range->max_retry = 255; 163 range->min_rts = 0; 164 range->max_rts = 2347; 165 range->min_frag = 256; 166 range->max_frag = 2346; 167 168 range->max_encoding_tokens = 4; 169 170 range->max_qual.updated = IW_QUAL_NOISE_INVALID; 171 172 switch (wdev->wiphy->signal_type) { 173 case CFG80211_SIGNAL_TYPE_NONE: 174 break; 175 case CFG80211_SIGNAL_TYPE_MBM: 176 range->max_qual.level = -110; 177 range->max_qual.qual = 70; 178 range->avg_qual.qual = 35; 179 range->max_qual.updated |= IW_QUAL_DBM; 180 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 181 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 182 break; 183 case CFG80211_SIGNAL_TYPE_UNSPEC: 184 range->max_qual.level = 100; 185 range->max_qual.qual = 100; 186 range->avg_qual.qual = 50; 187 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 188 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 189 break; 190 } 191 192 range->avg_qual.level = range->max_qual.level / 2; 193 range->avg_qual.noise = range->max_qual.noise / 2; 194 range->avg_qual.updated = range->max_qual.updated; 195 196 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { 197 switch (wdev->wiphy->cipher_suites[i]) { 198 case WLAN_CIPHER_SUITE_TKIP: 199 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | 200 IW_ENC_CAPA_WPA); 201 break; 202 203 case WLAN_CIPHER_SUITE_CCMP: 204 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | 205 IW_ENC_CAPA_WPA2); 206 break; 207 208 case WLAN_CIPHER_SUITE_WEP40: 209 range->encoding_size[range->num_encoding_sizes++] = 210 WLAN_KEY_LEN_WEP40; 211 break; 212 213 case WLAN_CIPHER_SUITE_WEP104: 214 range->encoding_size[range->num_encoding_sizes++] = 215 WLAN_KEY_LEN_WEP104; 216 break; 217 } 218 } 219 220 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { 221 struct ieee80211_supported_band *sband; 222 223 sband = wdev->wiphy->bands[band]; 224 225 if (!sband) 226 continue; 227 228 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { 229 struct ieee80211_channel *chan = &sband->channels[i]; 230 231 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { 232 range->freq[c].i = 233 ieee80211_frequency_to_channel( 234 chan->center_freq); 235 range->freq[c].m = chan->center_freq; 236 range->freq[c].e = 6; 237 c++; 238 } 239 } 240 } 241 range->num_channels = c; 242 range->num_frequency = c; 243 244 IW_EVENT_CAPA_SET_KERNEL(range->event_capa); 245 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); 246 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); 247 248 if (wdev->wiphy->max_scan_ssids > 0) 249 range->scan_capa |= IW_SCAN_CAPA_ESSID; 250 251 return 0; 252 } 253 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange); 254 255 256 /** 257 * cfg80211_wext_freq - get wext frequency for non-"auto" 258 * @wiphy: the wiphy 259 * @freq: the wext freq encoding 260 * 261 * Returns a frequency, or a negative error code, or 0 for auto. 262 */ 263 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq) 264 { 265 /* 266 * Parse frequency - return 0 for auto and 267 * -EINVAL for impossible things. 268 */ 269 if (freq->e == 0) { 270 if (freq->m < 0) 271 return 0; 272 return ieee80211_channel_to_frequency(freq->m); 273 } else { 274 int i, div = 1000000; 275 for (i = 0; i < freq->e; i++) 276 div /= 10; 277 if (div <= 0) 278 return -EINVAL; 279 return freq->m / div; 280 } 281 } 282 283 int cfg80211_wext_siwrts(struct net_device *dev, 284 struct iw_request_info *info, 285 struct iw_param *rts, char *extra) 286 { 287 struct wireless_dev *wdev = dev->ieee80211_ptr; 288 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 289 u32 orts = wdev->wiphy->rts_threshold; 290 int err; 291 292 if (rts->disabled || !rts->fixed) 293 wdev->wiphy->rts_threshold = (u32) -1; 294 else if (rts->value < 0) 295 return -EINVAL; 296 else 297 wdev->wiphy->rts_threshold = rts->value; 298 299 err = rdev->ops->set_wiphy_params(wdev->wiphy, 300 WIPHY_PARAM_RTS_THRESHOLD); 301 if (err) 302 wdev->wiphy->rts_threshold = orts; 303 304 return err; 305 } 306 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts); 307 308 int cfg80211_wext_giwrts(struct net_device *dev, 309 struct iw_request_info *info, 310 struct iw_param *rts, char *extra) 311 { 312 struct wireless_dev *wdev = dev->ieee80211_ptr; 313 314 rts->value = wdev->wiphy->rts_threshold; 315 rts->disabled = rts->value == (u32) -1; 316 rts->fixed = 1; 317 318 return 0; 319 } 320 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts); 321 322 int cfg80211_wext_siwfrag(struct net_device *dev, 323 struct iw_request_info *info, 324 struct iw_param *frag, char *extra) 325 { 326 struct wireless_dev *wdev = dev->ieee80211_ptr; 327 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 328 u32 ofrag = wdev->wiphy->frag_threshold; 329 int err; 330 331 if (frag->disabled || !frag->fixed) 332 wdev->wiphy->frag_threshold = (u32) -1; 333 else if (frag->value < 256) 334 return -EINVAL; 335 else { 336 /* Fragment length must be even, so strip LSB. */ 337 wdev->wiphy->frag_threshold = frag->value & ~0x1; 338 } 339 340 err = rdev->ops->set_wiphy_params(wdev->wiphy, 341 WIPHY_PARAM_FRAG_THRESHOLD); 342 if (err) 343 wdev->wiphy->frag_threshold = ofrag; 344 345 return err; 346 } 347 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag); 348 349 int cfg80211_wext_giwfrag(struct net_device *dev, 350 struct iw_request_info *info, 351 struct iw_param *frag, char *extra) 352 { 353 struct wireless_dev *wdev = dev->ieee80211_ptr; 354 355 frag->value = wdev->wiphy->frag_threshold; 356 frag->disabled = frag->value == (u32) -1; 357 frag->fixed = 1; 358 359 return 0; 360 } 361 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag); 362 363 int cfg80211_wext_siwretry(struct net_device *dev, 364 struct iw_request_info *info, 365 struct iw_param *retry, char *extra) 366 { 367 struct wireless_dev *wdev = dev->ieee80211_ptr; 368 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 369 u32 changed = 0; 370 u8 olong = wdev->wiphy->retry_long; 371 u8 oshort = wdev->wiphy->retry_short; 372 int err; 373 374 if (retry->disabled || 375 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 376 return -EINVAL; 377 378 if (retry->flags & IW_RETRY_LONG) { 379 wdev->wiphy->retry_long = retry->value; 380 changed |= WIPHY_PARAM_RETRY_LONG; 381 } else if (retry->flags & IW_RETRY_SHORT) { 382 wdev->wiphy->retry_short = retry->value; 383 changed |= WIPHY_PARAM_RETRY_SHORT; 384 } else { 385 wdev->wiphy->retry_short = retry->value; 386 wdev->wiphy->retry_long = retry->value; 387 changed |= WIPHY_PARAM_RETRY_LONG; 388 changed |= WIPHY_PARAM_RETRY_SHORT; 389 } 390 391 if (!changed) 392 return 0; 393 394 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed); 395 if (err) { 396 wdev->wiphy->retry_short = oshort; 397 wdev->wiphy->retry_long = olong; 398 } 399 400 return err; 401 } 402 EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry); 403 404 int cfg80211_wext_giwretry(struct net_device *dev, 405 struct iw_request_info *info, 406 struct iw_param *retry, char *extra) 407 { 408 struct wireless_dev *wdev = dev->ieee80211_ptr; 409 410 retry->disabled = 0; 411 412 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 413 /* 414 * First return short value, iwconfig will ask long value 415 * later if needed 416 */ 417 retry->flags |= IW_RETRY_LIMIT; 418 retry->value = wdev->wiphy->retry_short; 419 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short) 420 retry->flags |= IW_RETRY_LONG; 421 422 return 0; 423 } 424 425 if (retry->flags & IW_RETRY_LONG) { 426 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 427 retry->value = wdev->wiphy->retry_long; 428 } 429 430 return 0; 431 } 432 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); 433 434 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 435 struct net_device *dev, const u8 *addr, 436 bool remove, bool tx_key, int idx, 437 struct key_params *params) 438 { 439 struct wireless_dev *wdev = dev->ieee80211_ptr; 440 int err, i; 441 bool rejoin = false; 442 443 if (!wdev->wext.keys) { 444 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 445 GFP_KERNEL); 446 if (!wdev->wext.keys) 447 return -ENOMEM; 448 for (i = 0; i < 6; i++) 449 wdev->wext.keys->params[i].key = 450 wdev->wext.keys->data[i]; 451 } 452 453 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 454 wdev->iftype != NL80211_IFTYPE_STATION) 455 return -EOPNOTSUPP; 456 457 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 458 if (!wdev->current_bss) 459 return -ENOLINK; 460 461 if (!rdev->ops->set_default_mgmt_key) 462 return -EOPNOTSUPP; 463 464 if (idx < 4 || idx > 5) 465 return -EINVAL; 466 } else if (idx < 0 || idx > 3) 467 return -EINVAL; 468 469 if (remove) { 470 err = 0; 471 if (wdev->current_bss) { 472 /* 473 * If removing the current TX key, we will need to 474 * join a new IBSS without the privacy bit clear. 475 */ 476 if (idx == wdev->wext.default_key && 477 wdev->iftype == NL80211_IFTYPE_ADHOC) { 478 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 479 rejoin = true; 480 } 481 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr); 482 } 483 wdev->wext.connect.privacy = false; 484 /* 485 * Applications using wireless extensions expect to be 486 * able to delete keys that don't exist, so allow that. 487 */ 488 if (err == -ENOENT) 489 err = 0; 490 if (!err) { 491 if (!addr) { 492 wdev->wext.keys->params[idx].key_len = 0; 493 wdev->wext.keys->params[idx].cipher = 0; 494 } 495 if (idx == wdev->wext.default_key) 496 wdev->wext.default_key = -1; 497 else if (idx == wdev->wext.default_mgmt_key) 498 wdev->wext.default_mgmt_key = -1; 499 } 500 501 if (!err && rejoin) 502 err = cfg80211_ibss_wext_join(rdev, wdev); 503 504 return err; 505 } 506 507 if (addr) 508 tx_key = false; 509 510 if (cfg80211_validate_key_settings(rdev, params, idx, addr)) 511 return -EINVAL; 512 513 err = 0; 514 if (wdev->current_bss) 515 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params); 516 if (err) 517 return err; 518 519 if (!addr) { 520 wdev->wext.keys->params[idx] = *params; 521 memcpy(wdev->wext.keys->data[idx], 522 params->key, params->key_len); 523 wdev->wext.keys->params[idx].key = 524 wdev->wext.keys->data[idx]; 525 } 526 527 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 528 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 529 (tx_key || (!addr && wdev->wext.default_key == -1))) { 530 if (wdev->current_bss) { 531 /* 532 * If we are getting a new TX key from not having 533 * had one before we need to join a new IBSS with 534 * the privacy bit set. 535 */ 536 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 537 wdev->wext.default_key == -1) { 538 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 539 rejoin = true; 540 } 541 err = rdev->ops->set_default_key(&rdev->wiphy, 542 dev, idx); 543 } 544 if (!err) { 545 wdev->wext.default_key = idx; 546 if (rejoin) 547 err = cfg80211_ibss_wext_join(rdev, wdev); 548 } 549 return err; 550 } 551 552 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 553 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 554 if (wdev->current_bss) 555 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, 556 dev, idx); 557 if (!err) 558 wdev->wext.default_mgmt_key = idx; 559 return err; 560 } 561 562 return 0; 563 } 564 565 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 566 struct net_device *dev, const u8 *addr, 567 bool remove, bool tx_key, int idx, 568 struct key_params *params) 569 { 570 int err; 571 572 /* devlist mutex needed for possible IBSS re-join */ 573 mutex_lock(&rdev->devlist_mtx); 574 wdev_lock(dev->ieee80211_ptr); 575 err = __cfg80211_set_encryption(rdev, dev, addr, remove, 576 tx_key, idx, params); 577 wdev_unlock(dev->ieee80211_ptr); 578 mutex_unlock(&rdev->devlist_mtx); 579 580 return err; 581 } 582 583 int cfg80211_wext_siwencode(struct net_device *dev, 584 struct iw_request_info *info, 585 struct iw_point *erq, char *keybuf) 586 { 587 struct wireless_dev *wdev = dev->ieee80211_ptr; 588 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 589 int idx, err; 590 bool remove = false; 591 struct key_params params; 592 593 if (wdev->iftype != NL80211_IFTYPE_STATION && 594 wdev->iftype != NL80211_IFTYPE_ADHOC) 595 return -EOPNOTSUPP; 596 597 /* no use -- only MFP (set_default_mgmt_key) is optional */ 598 if (!rdev->ops->del_key || 599 !rdev->ops->add_key || 600 !rdev->ops->set_default_key) 601 return -EOPNOTSUPP; 602 603 idx = erq->flags & IW_ENCODE_INDEX; 604 if (idx == 0) { 605 idx = wdev->wext.default_key; 606 if (idx < 0) 607 idx = 0; 608 } else if (idx < 1 || idx > 4) 609 return -EINVAL; 610 else 611 idx--; 612 613 if (erq->flags & IW_ENCODE_DISABLED) 614 remove = true; 615 else if (erq->length == 0) { 616 /* No key data - just set the default TX key index */ 617 err = 0; 618 wdev_lock(wdev); 619 if (wdev->current_bss) 620 err = rdev->ops->set_default_key(&rdev->wiphy, 621 dev, idx); 622 if (!err) 623 wdev->wext.default_key = idx; 624 wdev_unlock(wdev); 625 return err; 626 } 627 628 memset(¶ms, 0, sizeof(params)); 629 params.key = keybuf; 630 params.key_len = erq->length; 631 if (erq->length == 5) 632 params.cipher = WLAN_CIPHER_SUITE_WEP40; 633 else if (erq->length == 13) 634 params.cipher = WLAN_CIPHER_SUITE_WEP104; 635 else if (!remove) 636 return -EINVAL; 637 638 return cfg80211_set_encryption(rdev, dev, NULL, remove, 639 wdev->wext.default_key == -1, 640 idx, ¶ms); 641 } 642 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode); 643 644 int cfg80211_wext_siwencodeext(struct net_device *dev, 645 struct iw_request_info *info, 646 struct iw_point *erq, char *extra) 647 { 648 struct wireless_dev *wdev = dev->ieee80211_ptr; 649 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 650 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 651 const u8 *addr; 652 int idx; 653 bool remove = false; 654 struct key_params params; 655 u32 cipher; 656 657 if (wdev->iftype != NL80211_IFTYPE_STATION && 658 wdev->iftype != NL80211_IFTYPE_ADHOC) 659 return -EOPNOTSUPP; 660 661 /* no use -- only MFP (set_default_mgmt_key) is optional */ 662 if (!rdev->ops->del_key || 663 !rdev->ops->add_key || 664 !rdev->ops->set_default_key) 665 return -EOPNOTSUPP; 666 667 switch (ext->alg) { 668 case IW_ENCODE_ALG_NONE: 669 remove = true; 670 cipher = 0; 671 break; 672 case IW_ENCODE_ALG_WEP: 673 if (ext->key_len == 5) 674 cipher = WLAN_CIPHER_SUITE_WEP40; 675 else if (ext->key_len == 13) 676 cipher = WLAN_CIPHER_SUITE_WEP104; 677 else 678 return -EINVAL; 679 break; 680 case IW_ENCODE_ALG_TKIP: 681 cipher = WLAN_CIPHER_SUITE_TKIP; 682 break; 683 case IW_ENCODE_ALG_CCMP: 684 cipher = WLAN_CIPHER_SUITE_CCMP; 685 break; 686 case IW_ENCODE_ALG_AES_CMAC: 687 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 688 break; 689 default: 690 return -EOPNOTSUPP; 691 } 692 693 if (erq->flags & IW_ENCODE_DISABLED) 694 remove = true; 695 696 idx = erq->flags & IW_ENCODE_INDEX; 697 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 698 if (idx < 4 || idx > 5) { 699 idx = wdev->wext.default_mgmt_key; 700 if (idx < 0) 701 return -EINVAL; 702 } else 703 idx--; 704 } else { 705 if (idx < 1 || idx > 4) { 706 idx = wdev->wext.default_key; 707 if (idx < 0) 708 return -EINVAL; 709 } else 710 idx--; 711 } 712 713 addr = ext->addr.sa_data; 714 if (is_broadcast_ether_addr(addr)) 715 addr = NULL; 716 717 memset(¶ms, 0, sizeof(params)); 718 params.key = ext->key; 719 params.key_len = ext->key_len; 720 params.cipher = cipher; 721 722 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 723 params.seq = ext->rx_seq; 724 params.seq_len = 6; 725 } 726 727 return cfg80211_set_encryption( 728 rdev, dev, addr, remove, 729 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 730 idx, ¶ms); 731 } 732 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext); 733 734 int cfg80211_wext_giwencode(struct net_device *dev, 735 struct iw_request_info *info, 736 struct iw_point *erq, char *keybuf) 737 { 738 struct wireless_dev *wdev = dev->ieee80211_ptr; 739 int idx; 740 741 if (wdev->iftype != NL80211_IFTYPE_STATION && 742 wdev->iftype != NL80211_IFTYPE_ADHOC) 743 return -EOPNOTSUPP; 744 745 idx = erq->flags & IW_ENCODE_INDEX; 746 if (idx == 0) { 747 idx = wdev->wext.default_key; 748 if (idx < 0) 749 idx = 0; 750 } else if (idx < 1 || idx > 4) 751 return -EINVAL; 752 else 753 idx--; 754 755 erq->flags = idx + 1; 756 757 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 758 erq->flags |= IW_ENCODE_DISABLED; 759 erq->length = 0; 760 return 0; 761 } 762 763 erq->length = min_t(size_t, erq->length, 764 wdev->wext.keys->params[idx].key_len); 765 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 766 erq->flags |= IW_ENCODE_ENABLED; 767 768 return 0; 769 } 770 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode); 771 772 int cfg80211_wext_siwfreq(struct net_device *dev, 773 struct iw_request_info *info, 774 struct iw_freq *wextfreq, char *extra) 775 { 776 struct wireless_dev *wdev = dev->ieee80211_ptr; 777 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 778 int freq, err; 779 780 switch (wdev->iftype) { 781 case NL80211_IFTYPE_STATION: 782 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 783 case NL80211_IFTYPE_ADHOC: 784 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 785 case NL80211_IFTYPE_MONITOR: 786 case NL80211_IFTYPE_WDS: 787 case NL80211_IFTYPE_MESH_POINT: 788 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 789 if (freq < 0) 790 return freq; 791 if (freq == 0) 792 return -EINVAL; 793 wdev_lock(wdev); 794 mutex_lock(&rdev->devlist_mtx); 795 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT); 796 mutex_unlock(&rdev->devlist_mtx); 797 wdev_unlock(wdev); 798 return err; 799 default: 800 return -EOPNOTSUPP; 801 } 802 } 803 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq); 804 805 int cfg80211_wext_giwfreq(struct net_device *dev, 806 struct iw_request_info *info, 807 struct iw_freq *freq, char *extra) 808 { 809 struct wireless_dev *wdev = dev->ieee80211_ptr; 810 811 switch (wdev->iftype) { 812 case NL80211_IFTYPE_STATION: 813 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 814 case NL80211_IFTYPE_ADHOC: 815 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 816 default: 817 if (!wdev->channel) 818 return -EINVAL; 819 freq->m = wdev->channel->center_freq; 820 freq->e = 6; 821 return 0; 822 } 823 } 824 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq); 825 826 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_dev(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->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm)); 876 } 877 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower); 878 879 int cfg80211_wext_giwtxpower(struct net_device *dev, 880 struct iw_request_info *info, 881 union iwreq_data *data, char *extra) 882 { 883 struct wireless_dev *wdev = dev->ieee80211_ptr; 884 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 885 int err, val; 886 887 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 888 return -EINVAL; 889 if (data->txpower.flags & IW_TXPOW_RANGE) 890 return -EINVAL; 891 892 if (!rdev->ops->get_tx_power) 893 return -EOPNOTSUPP; 894 895 err = rdev->ops->get_tx_power(wdev->wiphy, &val); 896 if (err) 897 return err; 898 899 /* well... oh well */ 900 data->txpower.fixed = 1; 901 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 902 data->txpower.value = val; 903 data->txpower.flags = IW_TXPOW_DBM; 904 905 return 0; 906 } 907 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower); 908 909 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 910 s32 auth_alg) 911 { 912 int nr_alg = 0; 913 914 if (!auth_alg) 915 return -EINVAL; 916 917 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 918 IW_AUTH_ALG_SHARED_KEY | 919 IW_AUTH_ALG_LEAP)) 920 return -EINVAL; 921 922 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 923 nr_alg++; 924 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 925 } 926 927 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 928 nr_alg++; 929 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 930 } 931 932 if (auth_alg & IW_AUTH_ALG_LEAP) { 933 nr_alg++; 934 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 935 } 936 937 if (nr_alg > 1) 938 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 939 940 return 0; 941 } 942 943 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 944 { 945 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 946 IW_AUTH_WPA_VERSION_WPA2| 947 IW_AUTH_WPA_VERSION_DISABLED)) 948 return -EINVAL; 949 950 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 951 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 952 IW_AUTH_WPA_VERSION_WPA2))) 953 return -EINVAL; 954 955 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 956 wdev->wext.connect.crypto.wpa_versions &= 957 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 958 959 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 960 wdev->wext.connect.crypto.wpa_versions |= 961 NL80211_WPA_VERSION_1; 962 963 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 964 wdev->wext.connect.crypto.wpa_versions |= 965 NL80211_WPA_VERSION_2; 966 967 return 0; 968 } 969 970 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 971 { 972 if (cipher & IW_AUTH_CIPHER_WEP40) 973 wdev->wext.connect.crypto.cipher_group = 974 WLAN_CIPHER_SUITE_WEP40; 975 else if (cipher & IW_AUTH_CIPHER_WEP104) 976 wdev->wext.connect.crypto.cipher_group = 977 WLAN_CIPHER_SUITE_WEP104; 978 else if (cipher & IW_AUTH_CIPHER_TKIP) 979 wdev->wext.connect.crypto.cipher_group = 980 WLAN_CIPHER_SUITE_TKIP; 981 else if (cipher & IW_AUTH_CIPHER_CCMP) 982 wdev->wext.connect.crypto.cipher_group = 983 WLAN_CIPHER_SUITE_CCMP; 984 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 985 wdev->wext.connect.crypto.cipher_group = 986 WLAN_CIPHER_SUITE_AES_CMAC; 987 else if (cipher & IW_AUTH_CIPHER_NONE) 988 wdev->wext.connect.crypto.cipher_group = 0; 989 else 990 return -EINVAL; 991 992 return 0; 993 } 994 995 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 996 { 997 int nr_ciphers = 0; 998 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 999 1000 if (cipher & IW_AUTH_CIPHER_WEP40) { 1001 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 1002 nr_ciphers++; 1003 } 1004 1005 if (cipher & IW_AUTH_CIPHER_WEP104) { 1006 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1007 nr_ciphers++; 1008 } 1009 1010 if (cipher & IW_AUTH_CIPHER_TKIP) { 1011 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1012 nr_ciphers++; 1013 } 1014 1015 if (cipher & IW_AUTH_CIPHER_CCMP) { 1016 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1017 nr_ciphers++; 1018 } 1019 1020 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1021 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1022 nr_ciphers++; 1023 } 1024 1025 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1026 1027 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1028 1029 return 0; 1030 } 1031 1032 1033 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1034 { 1035 int nr_akm_suites = 0; 1036 1037 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1038 IW_AUTH_KEY_MGMT_PSK)) 1039 return -EINVAL; 1040 1041 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1042 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1043 WLAN_AKM_SUITE_8021X; 1044 nr_akm_suites++; 1045 } 1046 1047 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1048 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1049 WLAN_AKM_SUITE_PSK; 1050 nr_akm_suites++; 1051 } 1052 1053 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1054 1055 return 0; 1056 } 1057 1058 int cfg80211_wext_siwauth(struct net_device *dev, 1059 struct iw_request_info *info, 1060 struct iw_param *data, char *extra) 1061 { 1062 struct wireless_dev *wdev = dev->ieee80211_ptr; 1063 1064 if (wdev->iftype != NL80211_IFTYPE_STATION) 1065 return -EOPNOTSUPP; 1066 1067 switch (data->flags & IW_AUTH_INDEX) { 1068 case IW_AUTH_PRIVACY_INVOKED: 1069 wdev->wext.connect.privacy = data->value; 1070 return 0; 1071 case IW_AUTH_WPA_VERSION: 1072 return cfg80211_set_wpa_version(wdev, data->value); 1073 case IW_AUTH_CIPHER_GROUP: 1074 return cfg80211_set_cipher_group(wdev, data->value); 1075 case IW_AUTH_KEY_MGMT: 1076 return cfg80211_set_key_mgt(wdev, data->value); 1077 case IW_AUTH_CIPHER_PAIRWISE: 1078 return cfg80211_set_cipher_pairwise(wdev, data->value); 1079 case IW_AUTH_80211_AUTH_ALG: 1080 return cfg80211_set_auth_alg(wdev, data->value); 1081 case IW_AUTH_WPA_ENABLED: 1082 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1083 case IW_AUTH_DROP_UNENCRYPTED: 1084 case IW_AUTH_MFP: 1085 return 0; 1086 default: 1087 return -EOPNOTSUPP; 1088 } 1089 } 1090 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth); 1091 1092 int cfg80211_wext_giwauth(struct net_device *dev, 1093 struct iw_request_info *info, 1094 struct iw_param *data, char *extra) 1095 { 1096 /* XXX: what do we need? */ 1097 1098 return -EOPNOTSUPP; 1099 } 1100 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth); 1101 1102 int cfg80211_wext_siwpower(struct net_device *dev, 1103 struct iw_request_info *info, 1104 struct iw_param *wrq, char *extra) 1105 { 1106 struct wireless_dev *wdev = dev->ieee80211_ptr; 1107 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1108 bool ps = wdev->ps; 1109 int timeout = wdev->ps_timeout; 1110 int err; 1111 1112 if (wdev->iftype != NL80211_IFTYPE_STATION) 1113 return -EINVAL; 1114 1115 if (!rdev->ops->set_power_mgmt) 1116 return -EOPNOTSUPP; 1117 1118 if (wrq->disabled) { 1119 ps = false; 1120 } else { 1121 switch (wrq->flags & IW_POWER_MODE) { 1122 case IW_POWER_ON: /* If not specified */ 1123 case IW_POWER_MODE: /* If set all mask */ 1124 case IW_POWER_ALL_R: /* If explicitely state all */ 1125 ps = true; 1126 break; 1127 default: /* Otherwise we ignore */ 1128 return -EINVAL; 1129 } 1130 1131 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1132 return -EINVAL; 1133 1134 if (wrq->flags & IW_POWER_TIMEOUT) 1135 timeout = wrq->value / 1000; 1136 } 1137 1138 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout); 1139 if (err) 1140 return err; 1141 1142 wdev->ps = ps; 1143 wdev->ps_timeout = timeout; 1144 1145 return 0; 1146 1147 } 1148 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower); 1149 1150 int cfg80211_wext_giwpower(struct net_device *dev, 1151 struct iw_request_info *info, 1152 struct iw_param *wrq, char *extra) 1153 { 1154 struct wireless_dev *wdev = dev->ieee80211_ptr; 1155 1156 wrq->disabled = !wdev->ps; 1157 1158 return 0; 1159 } 1160 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower); 1161 1162 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1163 struct iw_request_info *info, 1164 struct sockaddr *addr, char *extra) 1165 { 1166 struct wireless_dev *wdev = dev->ieee80211_ptr; 1167 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1168 int err; 1169 1170 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1171 return -EINVAL; 1172 1173 if (addr->sa_family != ARPHRD_ETHER) 1174 return -EINVAL; 1175 1176 if (netif_running(dev)) 1177 return -EBUSY; 1178 1179 if (!rdev->ops->set_wds_peer) 1180 return -EOPNOTSUPP; 1181 1182 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data); 1183 if (err) 1184 return err; 1185 1186 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1187 1188 return 0; 1189 } 1190 1191 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1192 struct iw_request_info *info, 1193 struct sockaddr *addr, char *extra) 1194 { 1195 struct wireless_dev *wdev = dev->ieee80211_ptr; 1196 1197 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1198 return -EINVAL; 1199 1200 addr->sa_family = ARPHRD_ETHER; 1201 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1202 1203 return 0; 1204 } 1205 1206 int cfg80211_wext_siwrate(struct net_device *dev, 1207 struct iw_request_info *info, 1208 struct iw_param *rate, char *extra) 1209 { 1210 struct wireless_dev *wdev = dev->ieee80211_ptr; 1211 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1212 struct cfg80211_bitrate_mask mask; 1213 u32 fixed, maxrate; 1214 struct ieee80211_supported_band *sband; 1215 int band, ridx; 1216 bool match = false; 1217 1218 if (!rdev->ops->set_bitrate_mask) 1219 return -EOPNOTSUPP; 1220 1221 memset(&mask, 0, sizeof(mask)); 1222 fixed = 0; 1223 maxrate = (u32)-1; 1224 1225 if (rate->value < 0) { 1226 /* nothing */ 1227 } else if (rate->fixed) { 1228 fixed = rate->value / 100000; 1229 } else { 1230 maxrate = rate->value / 100000; 1231 } 1232 1233 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1234 sband = wdev->wiphy->bands[band]; 1235 if (sband == NULL) 1236 continue; 1237 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1238 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1239 if (fixed == srate->bitrate) { 1240 mask.control[band].legacy = 1 << ridx; 1241 match = true; 1242 break; 1243 } 1244 if (srate->bitrate <= maxrate) { 1245 mask.control[band].legacy |= 1 << ridx; 1246 match = true; 1247 } 1248 } 1249 } 1250 1251 if (!match) 1252 return -EINVAL; 1253 1254 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask); 1255 } 1256 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate); 1257 1258 int cfg80211_wext_giwrate(struct net_device *dev, 1259 struct iw_request_info *info, 1260 struct iw_param *rate, char *extra) 1261 { 1262 struct wireless_dev *wdev = dev->ieee80211_ptr; 1263 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1264 /* we are under RTNL - globally locked - so can use a static struct */ 1265 static struct station_info sinfo; 1266 u8 addr[ETH_ALEN]; 1267 int err; 1268 1269 if (wdev->iftype != NL80211_IFTYPE_STATION) 1270 return -EOPNOTSUPP; 1271 1272 if (!rdev->ops->get_station) 1273 return -EOPNOTSUPP; 1274 1275 err = 0; 1276 wdev_lock(wdev); 1277 if (wdev->current_bss) 1278 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1279 else 1280 err = -EOPNOTSUPP; 1281 wdev_unlock(wdev); 1282 if (err) 1283 return err; 1284 1285 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo); 1286 if (err) 1287 return err; 1288 1289 if (!(sinfo.filled & STATION_INFO_TX_BITRATE)) 1290 return -EOPNOTSUPP; 1291 1292 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1293 1294 return 0; 1295 } 1296 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate); 1297 1298 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1299 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1300 { 1301 struct wireless_dev *wdev = dev->ieee80211_ptr; 1302 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1303 /* we are under RTNL - globally locked - so can use static structs */ 1304 static struct iw_statistics wstats; 1305 static struct station_info sinfo; 1306 u8 bssid[ETH_ALEN]; 1307 1308 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1309 return NULL; 1310 1311 if (!rdev->ops->get_station) 1312 return NULL; 1313 1314 /* Grab BSSID of current BSS, if any */ 1315 wdev_lock(wdev); 1316 if (!wdev->current_bss) { 1317 wdev_unlock(wdev); 1318 return NULL; 1319 } 1320 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1321 wdev_unlock(wdev); 1322 1323 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo)) 1324 return NULL; 1325 1326 memset(&wstats, 0, sizeof(wstats)); 1327 1328 switch (rdev->wiphy.signal_type) { 1329 case CFG80211_SIGNAL_TYPE_MBM: 1330 if (sinfo.filled & STATION_INFO_SIGNAL) { 1331 int sig = sinfo.signal; 1332 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1333 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1334 wstats.qual.updated |= IW_QUAL_DBM; 1335 wstats.qual.level = sig; 1336 if (sig < -110) 1337 sig = -110; 1338 else if (sig > -40) 1339 sig = -40; 1340 wstats.qual.qual = sig + 110; 1341 break; 1342 } 1343 case CFG80211_SIGNAL_TYPE_UNSPEC: 1344 if (sinfo.filled & STATION_INFO_SIGNAL) { 1345 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1346 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1347 wstats.qual.level = sinfo.signal; 1348 wstats.qual.qual = sinfo.signal; 1349 break; 1350 } 1351 default: 1352 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1353 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1354 } 1355 1356 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1357 1358 return &wstats; 1359 } 1360 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats); 1361 1362 int cfg80211_wext_siwap(struct net_device *dev, 1363 struct iw_request_info *info, 1364 struct sockaddr *ap_addr, char *extra) 1365 { 1366 struct wireless_dev *wdev = dev->ieee80211_ptr; 1367 1368 switch (wdev->iftype) { 1369 case NL80211_IFTYPE_ADHOC: 1370 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1371 case NL80211_IFTYPE_STATION: 1372 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1373 case NL80211_IFTYPE_WDS: 1374 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1375 default: 1376 return -EOPNOTSUPP; 1377 } 1378 } 1379 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap); 1380 1381 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 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap); 1399 1400 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 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid); 1416 1417 int cfg80211_wext_giwessid(struct net_device *dev, 1418 struct iw_request_info *info, 1419 struct iw_point *data, char *ssid) 1420 { 1421 struct wireless_dev *wdev = dev->ieee80211_ptr; 1422 1423 switch (wdev->iftype) { 1424 case NL80211_IFTYPE_ADHOC: 1425 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1426 case NL80211_IFTYPE_STATION: 1427 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1428 default: 1429 return -EOPNOTSUPP; 1430 } 1431 } 1432 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid); 1433 1434 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_dev(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->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1457 1458 case IW_PMKSA_REMOVE: 1459 if (!rdev->ops->del_pmksa) 1460 return -EOPNOTSUPP; 1461 1462 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1463 1464 case IW_PMKSA_FLUSH: 1465 if (!rdev->ops->flush_pmksa) 1466 return -EOPNOTSUPP; 1467 1468 return rdev->ops->flush_pmksa(&rdev->wiphy, dev); 1469 1470 default: 1471 return -EOPNOTSUPP; 1472 } 1473 } 1474 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa); 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