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/export.h> 12 #include <linux/wireless.h> 13 #include <linux/nl80211.h> 14 #include <linux/if_arp.h> 15 #include <linux/etherdevice.h> 16 #include <linux/slab.h> 17 #include <net/iw_handler.h> 18 #include <net/cfg80211.h> 19 #include <net/cfg80211-wext.h> 20 #include "wext-compat.h" 21 #include "core.h" 22 23 int cfg80211_wext_giwname(struct net_device *dev, 24 struct iw_request_info *info, 25 char *name, char *extra) 26 { 27 struct wireless_dev *wdev = dev->ieee80211_ptr; 28 struct ieee80211_supported_band *sband; 29 bool is_ht = false, is_a = false, is_b = false, is_g = false; 30 31 if (!wdev) 32 return -EOPNOTSUPP; 33 34 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ]; 35 if (sband) { 36 is_a = true; 37 is_ht |= sband->ht_cap.ht_supported; 38 } 39 40 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ]; 41 if (sband) { 42 int i; 43 /* Check for mandatory rates */ 44 for (i = 0; i < sband->n_bitrates; i++) { 45 if (sband->bitrates[i].bitrate == 10) 46 is_b = true; 47 if (sband->bitrates[i].bitrate == 60) 48 is_g = true; 49 } 50 is_ht |= sband->ht_cap.ht_supported; 51 } 52 53 strcpy(name, "IEEE 802.11"); 54 if (is_a) 55 strcat(name, "a"); 56 if (is_b) 57 strcat(name, "b"); 58 if (is_g) 59 strcat(name, "g"); 60 if (is_ht) 61 strcat(name, "n"); 62 63 return 0; 64 } 65 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname); 66 67 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 68 u32 *mode, char *extra) 69 { 70 struct wireless_dev *wdev = dev->ieee80211_ptr; 71 struct cfg80211_registered_device *rdev; 72 struct vif_params vifparams; 73 enum nl80211_iftype type; 74 int ret; 75 76 rdev = wiphy_to_dev(wdev->wiphy); 77 78 switch (*mode) { 79 case IW_MODE_INFRA: 80 type = NL80211_IFTYPE_STATION; 81 break; 82 case IW_MODE_ADHOC: 83 type = NL80211_IFTYPE_ADHOC; 84 break; 85 case IW_MODE_REPEAT: 86 type = NL80211_IFTYPE_WDS; 87 break; 88 case IW_MODE_MONITOR: 89 type = NL80211_IFTYPE_MONITOR; 90 break; 91 default: 92 return -EINVAL; 93 } 94 95 if (type == wdev->iftype) 96 return 0; 97 98 memset(&vifparams, 0, sizeof(vifparams)); 99 100 cfg80211_lock_rdev(rdev); 101 ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams); 102 cfg80211_unlock_rdev(rdev); 103 104 return ret; 105 } 106 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode); 107 108 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 109 u32 *mode, char *extra) 110 { 111 struct wireless_dev *wdev = dev->ieee80211_ptr; 112 113 if (!wdev) 114 return -EOPNOTSUPP; 115 116 switch (wdev->iftype) { 117 case NL80211_IFTYPE_AP: 118 *mode = IW_MODE_MASTER; 119 break; 120 case NL80211_IFTYPE_STATION: 121 *mode = IW_MODE_INFRA; 122 break; 123 case NL80211_IFTYPE_ADHOC: 124 *mode = IW_MODE_ADHOC; 125 break; 126 case NL80211_IFTYPE_MONITOR: 127 *mode = IW_MODE_MONITOR; 128 break; 129 case NL80211_IFTYPE_WDS: 130 *mode = IW_MODE_REPEAT; 131 break; 132 case NL80211_IFTYPE_AP_VLAN: 133 *mode = IW_MODE_SECOND; /* FIXME */ 134 break; 135 default: 136 *mode = IW_MODE_AUTO; 137 break; 138 } 139 return 0; 140 } 141 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode); 142 143 144 int cfg80211_wext_giwrange(struct net_device *dev, 145 struct iw_request_info *info, 146 struct iw_point *data, char *extra) 147 { 148 struct wireless_dev *wdev = dev->ieee80211_ptr; 149 struct iw_range *range = (struct iw_range *) extra; 150 enum ieee80211_band band; 151 int i, c = 0; 152 153 if (!wdev) 154 return -EOPNOTSUPP; 155 156 data->length = sizeof(struct iw_range); 157 memset(range, 0, sizeof(struct iw_range)); 158 159 range->we_version_compiled = WIRELESS_EXT; 160 range->we_version_source = 21; 161 range->retry_capa = IW_RETRY_LIMIT; 162 range->retry_flags = IW_RETRY_LIMIT; 163 range->min_retry = 0; 164 range->max_retry = 255; 165 range->min_rts = 0; 166 range->max_rts = 2347; 167 range->min_frag = 256; 168 range->max_frag = 2346; 169 170 range->max_encoding_tokens = 4; 171 172 range->max_qual.updated = IW_QUAL_NOISE_INVALID; 173 174 switch (wdev->wiphy->signal_type) { 175 case CFG80211_SIGNAL_TYPE_NONE: 176 break; 177 case CFG80211_SIGNAL_TYPE_MBM: 178 range->max_qual.level = -110; 179 range->max_qual.qual = 70; 180 range->avg_qual.qual = 35; 181 range->max_qual.updated |= IW_QUAL_DBM; 182 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 183 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 184 break; 185 case CFG80211_SIGNAL_TYPE_UNSPEC: 186 range->max_qual.level = 100; 187 range->max_qual.qual = 100; 188 range->avg_qual.qual = 50; 189 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 190 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 191 break; 192 } 193 194 range->avg_qual.level = range->max_qual.level / 2; 195 range->avg_qual.noise = range->max_qual.noise / 2; 196 range->avg_qual.updated = range->max_qual.updated; 197 198 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { 199 switch (wdev->wiphy->cipher_suites[i]) { 200 case WLAN_CIPHER_SUITE_TKIP: 201 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | 202 IW_ENC_CAPA_WPA); 203 break; 204 205 case WLAN_CIPHER_SUITE_CCMP: 206 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | 207 IW_ENC_CAPA_WPA2); 208 break; 209 210 case WLAN_CIPHER_SUITE_WEP40: 211 range->encoding_size[range->num_encoding_sizes++] = 212 WLAN_KEY_LEN_WEP40; 213 break; 214 215 case WLAN_CIPHER_SUITE_WEP104: 216 range->encoding_size[range->num_encoding_sizes++] = 217 WLAN_KEY_LEN_WEP104; 218 break; 219 } 220 } 221 222 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { 223 struct ieee80211_supported_band *sband; 224 225 sband = wdev->wiphy->bands[band]; 226 227 if (!sband) 228 continue; 229 230 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { 231 struct ieee80211_channel *chan = &sband->channels[i]; 232 233 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { 234 range->freq[c].i = 235 ieee80211_frequency_to_channel( 236 chan->center_freq); 237 range->freq[c].m = chan->center_freq; 238 range->freq[c].e = 6; 239 c++; 240 } 241 } 242 } 243 range->num_channels = c; 244 range->num_frequency = c; 245 246 IW_EVENT_CAPA_SET_KERNEL(range->event_capa); 247 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); 248 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); 249 250 if (wdev->wiphy->max_scan_ssids > 0) 251 range->scan_capa |= IW_SCAN_CAPA_ESSID; 252 253 return 0; 254 } 255 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange); 256 257 258 /** 259 * cfg80211_wext_freq - get wext frequency for non-"auto" 260 * @wiphy: the wiphy 261 * @freq: the wext freq encoding 262 * 263 * Returns a frequency, or a negative error code, or 0 for auto. 264 */ 265 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq) 266 { 267 /* 268 * Parse frequency - return 0 for auto and 269 * -EINVAL for impossible things. 270 */ 271 if (freq->e == 0) { 272 enum ieee80211_band band = IEEE80211_BAND_2GHZ; 273 if (freq->m < 0) 274 return 0; 275 if (freq->m > 14) 276 band = IEEE80211_BAND_5GHZ; 277 return ieee80211_channel_to_frequency(freq->m, band); 278 } else { 279 int i, div = 1000000; 280 for (i = 0; i < freq->e; i++) 281 div /= 10; 282 if (div <= 0) 283 return -EINVAL; 284 return freq->m / div; 285 } 286 } 287 288 int cfg80211_wext_siwrts(struct net_device *dev, 289 struct iw_request_info *info, 290 struct iw_param *rts, char *extra) 291 { 292 struct wireless_dev *wdev = dev->ieee80211_ptr; 293 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 294 u32 orts = wdev->wiphy->rts_threshold; 295 int err; 296 297 if (rts->disabled || !rts->fixed) 298 wdev->wiphy->rts_threshold = (u32) -1; 299 else if (rts->value < 0) 300 return -EINVAL; 301 else 302 wdev->wiphy->rts_threshold = rts->value; 303 304 err = rdev->ops->set_wiphy_params(wdev->wiphy, 305 WIPHY_PARAM_RTS_THRESHOLD); 306 if (err) 307 wdev->wiphy->rts_threshold = orts; 308 309 return err; 310 } 311 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts); 312 313 int cfg80211_wext_giwrts(struct net_device *dev, 314 struct iw_request_info *info, 315 struct iw_param *rts, char *extra) 316 { 317 struct wireless_dev *wdev = dev->ieee80211_ptr; 318 319 rts->value = wdev->wiphy->rts_threshold; 320 rts->disabled = rts->value == (u32) -1; 321 rts->fixed = 1; 322 323 return 0; 324 } 325 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts); 326 327 int cfg80211_wext_siwfrag(struct net_device *dev, 328 struct iw_request_info *info, 329 struct iw_param *frag, char *extra) 330 { 331 struct wireless_dev *wdev = dev->ieee80211_ptr; 332 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 333 u32 ofrag = wdev->wiphy->frag_threshold; 334 int err; 335 336 if (frag->disabled || !frag->fixed) 337 wdev->wiphy->frag_threshold = (u32) -1; 338 else if (frag->value < 256) 339 return -EINVAL; 340 else { 341 /* Fragment length must be even, so strip LSB. */ 342 wdev->wiphy->frag_threshold = frag->value & ~0x1; 343 } 344 345 err = rdev->ops->set_wiphy_params(wdev->wiphy, 346 WIPHY_PARAM_FRAG_THRESHOLD); 347 if (err) 348 wdev->wiphy->frag_threshold = ofrag; 349 350 return err; 351 } 352 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag); 353 354 int cfg80211_wext_giwfrag(struct net_device *dev, 355 struct iw_request_info *info, 356 struct iw_param *frag, char *extra) 357 { 358 struct wireless_dev *wdev = dev->ieee80211_ptr; 359 360 frag->value = wdev->wiphy->frag_threshold; 361 frag->disabled = frag->value == (u32) -1; 362 frag->fixed = 1; 363 364 return 0; 365 } 366 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag); 367 368 static int cfg80211_wext_siwretry(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 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 374 u32 changed = 0; 375 u8 olong = wdev->wiphy->retry_long; 376 u8 oshort = wdev->wiphy->retry_short; 377 int err; 378 379 if (retry->disabled || 380 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 381 return -EINVAL; 382 383 if (retry->flags & IW_RETRY_LONG) { 384 wdev->wiphy->retry_long = retry->value; 385 changed |= WIPHY_PARAM_RETRY_LONG; 386 } else if (retry->flags & IW_RETRY_SHORT) { 387 wdev->wiphy->retry_short = retry->value; 388 changed |= WIPHY_PARAM_RETRY_SHORT; 389 } else { 390 wdev->wiphy->retry_short = retry->value; 391 wdev->wiphy->retry_long = retry->value; 392 changed |= WIPHY_PARAM_RETRY_LONG; 393 changed |= WIPHY_PARAM_RETRY_SHORT; 394 } 395 396 if (!changed) 397 return 0; 398 399 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed); 400 if (err) { 401 wdev->wiphy->retry_short = oshort; 402 wdev->wiphy->retry_long = olong; 403 } 404 405 return err; 406 } 407 408 int cfg80211_wext_giwretry(struct net_device *dev, 409 struct iw_request_info *info, 410 struct iw_param *retry, char *extra) 411 { 412 struct wireless_dev *wdev = dev->ieee80211_ptr; 413 414 retry->disabled = 0; 415 416 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 417 /* 418 * First return short value, iwconfig will ask long value 419 * later if needed 420 */ 421 retry->flags |= IW_RETRY_LIMIT; 422 retry->value = wdev->wiphy->retry_short; 423 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short) 424 retry->flags |= IW_RETRY_LONG; 425 426 return 0; 427 } 428 429 if (retry->flags & IW_RETRY_LONG) { 430 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 431 retry->value = wdev->wiphy->retry_long; 432 } 433 434 return 0; 435 } 436 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); 437 438 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 439 struct net_device *dev, bool pairwise, 440 const u8 *addr, bool remove, bool tx_key, 441 int idx, struct key_params *params) 442 { 443 struct wireless_dev *wdev = dev->ieee80211_ptr; 444 int err, i; 445 bool rejoin = false; 446 447 if (pairwise && !addr) 448 return -EINVAL; 449 450 if (!wdev->wext.keys) { 451 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 452 GFP_KERNEL); 453 if (!wdev->wext.keys) 454 return -ENOMEM; 455 for (i = 0; i < 6; i++) 456 wdev->wext.keys->params[i].key = 457 wdev->wext.keys->data[i]; 458 } 459 460 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 461 wdev->iftype != NL80211_IFTYPE_STATION) 462 return -EOPNOTSUPP; 463 464 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 465 if (!wdev->current_bss) 466 return -ENOLINK; 467 468 if (!rdev->ops->set_default_mgmt_key) 469 return -EOPNOTSUPP; 470 471 if (idx < 4 || idx > 5) 472 return -EINVAL; 473 } else if (idx < 0 || idx > 3) 474 return -EINVAL; 475 476 if (remove) { 477 err = 0; 478 if (wdev->current_bss) { 479 /* 480 * If removing the current TX key, we will need to 481 * join a new IBSS without the privacy bit clear. 482 */ 483 if (idx == wdev->wext.default_key && 484 wdev->iftype == NL80211_IFTYPE_ADHOC) { 485 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 486 rejoin = true; 487 } 488 489 if (!pairwise && addr && 490 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 491 err = -ENOENT; 492 else 493 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, 494 pairwise, addr); 495 } 496 wdev->wext.connect.privacy = false; 497 /* 498 * Applications using wireless extensions expect to be 499 * able to delete keys that don't exist, so allow that. 500 */ 501 if (err == -ENOENT) 502 err = 0; 503 if (!err) { 504 if (!addr) { 505 wdev->wext.keys->params[idx].key_len = 0; 506 wdev->wext.keys->params[idx].cipher = 0; 507 } 508 if (idx == wdev->wext.default_key) 509 wdev->wext.default_key = -1; 510 else if (idx == wdev->wext.default_mgmt_key) 511 wdev->wext.default_mgmt_key = -1; 512 } 513 514 if (!err && rejoin) 515 err = cfg80211_ibss_wext_join(rdev, wdev); 516 517 return err; 518 } 519 520 if (addr) 521 tx_key = false; 522 523 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 524 return -EINVAL; 525 526 err = 0; 527 if (wdev->current_bss) 528 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, 529 pairwise, addr, params); 530 if (err) 531 return err; 532 533 if (!addr) { 534 wdev->wext.keys->params[idx] = *params; 535 memcpy(wdev->wext.keys->data[idx], 536 params->key, params->key_len); 537 wdev->wext.keys->params[idx].key = 538 wdev->wext.keys->data[idx]; 539 } 540 541 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 542 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 543 (tx_key || (!addr && wdev->wext.default_key == -1))) { 544 if (wdev->current_bss) { 545 /* 546 * If we are getting a new TX key from not having 547 * had one before we need to join a new IBSS with 548 * the privacy bit set. 549 */ 550 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 551 wdev->wext.default_key == -1) { 552 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 553 rejoin = true; 554 } 555 err = rdev->ops->set_default_key(&rdev->wiphy, dev, 556 idx, true, true); 557 } 558 if (!err) { 559 wdev->wext.default_key = idx; 560 if (rejoin) 561 err = cfg80211_ibss_wext_join(rdev, wdev); 562 } 563 return err; 564 } 565 566 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 567 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 568 if (wdev->current_bss) 569 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, 570 dev, idx); 571 if (!err) 572 wdev->wext.default_mgmt_key = idx; 573 return err; 574 } 575 576 return 0; 577 } 578 579 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 580 struct net_device *dev, bool pairwise, 581 const u8 *addr, bool remove, bool tx_key, 582 int idx, struct key_params *params) 583 { 584 int err; 585 586 /* devlist mutex needed for possible IBSS re-join */ 587 mutex_lock(&rdev->devlist_mtx); 588 wdev_lock(dev->ieee80211_ptr); 589 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 590 remove, tx_key, idx, params); 591 wdev_unlock(dev->ieee80211_ptr); 592 mutex_unlock(&rdev->devlist_mtx); 593 594 return err; 595 } 596 597 static int cfg80211_wext_siwencode(struct net_device *dev, 598 struct iw_request_info *info, 599 struct iw_point *erq, char *keybuf) 600 { 601 struct wireless_dev *wdev = dev->ieee80211_ptr; 602 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 603 int idx, err; 604 bool remove = false; 605 struct key_params params; 606 607 if (wdev->iftype != NL80211_IFTYPE_STATION && 608 wdev->iftype != NL80211_IFTYPE_ADHOC) 609 return -EOPNOTSUPP; 610 611 /* no use -- only MFP (set_default_mgmt_key) is optional */ 612 if (!rdev->ops->del_key || 613 !rdev->ops->add_key || 614 !rdev->ops->set_default_key) 615 return -EOPNOTSUPP; 616 617 idx = erq->flags & IW_ENCODE_INDEX; 618 if (idx == 0) { 619 idx = wdev->wext.default_key; 620 if (idx < 0) 621 idx = 0; 622 } else if (idx < 1 || idx > 4) 623 return -EINVAL; 624 else 625 idx--; 626 627 if (erq->flags & IW_ENCODE_DISABLED) 628 remove = true; 629 else if (erq->length == 0) { 630 /* No key data - just set the default TX key index */ 631 err = 0; 632 wdev_lock(wdev); 633 if (wdev->current_bss) 634 err = rdev->ops->set_default_key(&rdev->wiphy, dev, 635 idx, true, true); 636 if (!err) 637 wdev->wext.default_key = idx; 638 wdev_unlock(wdev); 639 return err; 640 } 641 642 memset(¶ms, 0, sizeof(params)); 643 params.key = keybuf; 644 params.key_len = erq->length; 645 if (erq->length == 5) 646 params.cipher = WLAN_CIPHER_SUITE_WEP40; 647 else if (erq->length == 13) 648 params.cipher = WLAN_CIPHER_SUITE_WEP104; 649 else if (!remove) 650 return -EINVAL; 651 652 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 653 wdev->wext.default_key == -1, 654 idx, ¶ms); 655 } 656 657 static int cfg80211_wext_siwencodeext(struct net_device *dev, 658 struct iw_request_info *info, 659 struct iw_point *erq, char *extra) 660 { 661 struct wireless_dev *wdev = dev->ieee80211_ptr; 662 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 663 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 664 const u8 *addr; 665 int idx; 666 bool remove = false; 667 struct key_params params; 668 u32 cipher; 669 670 if (wdev->iftype != NL80211_IFTYPE_STATION && 671 wdev->iftype != NL80211_IFTYPE_ADHOC) 672 return -EOPNOTSUPP; 673 674 /* no use -- only MFP (set_default_mgmt_key) is optional */ 675 if (!rdev->ops->del_key || 676 !rdev->ops->add_key || 677 !rdev->ops->set_default_key) 678 return -EOPNOTSUPP; 679 680 switch (ext->alg) { 681 case IW_ENCODE_ALG_NONE: 682 remove = true; 683 cipher = 0; 684 break; 685 case IW_ENCODE_ALG_WEP: 686 if (ext->key_len == 5) 687 cipher = WLAN_CIPHER_SUITE_WEP40; 688 else if (ext->key_len == 13) 689 cipher = WLAN_CIPHER_SUITE_WEP104; 690 else 691 return -EINVAL; 692 break; 693 case IW_ENCODE_ALG_TKIP: 694 cipher = WLAN_CIPHER_SUITE_TKIP; 695 break; 696 case IW_ENCODE_ALG_CCMP: 697 cipher = WLAN_CIPHER_SUITE_CCMP; 698 break; 699 case IW_ENCODE_ALG_AES_CMAC: 700 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 701 break; 702 default: 703 return -EOPNOTSUPP; 704 } 705 706 if (erq->flags & IW_ENCODE_DISABLED) 707 remove = true; 708 709 idx = erq->flags & IW_ENCODE_INDEX; 710 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 711 if (idx < 4 || idx > 5) { 712 idx = wdev->wext.default_mgmt_key; 713 if (idx < 0) 714 return -EINVAL; 715 } else 716 idx--; 717 } else { 718 if (idx < 1 || idx > 4) { 719 idx = wdev->wext.default_key; 720 if (idx < 0) 721 return -EINVAL; 722 } else 723 idx--; 724 } 725 726 addr = ext->addr.sa_data; 727 if (is_broadcast_ether_addr(addr)) 728 addr = NULL; 729 730 memset(¶ms, 0, sizeof(params)); 731 params.key = ext->key; 732 params.key_len = ext->key_len; 733 params.cipher = cipher; 734 735 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 736 params.seq = ext->rx_seq; 737 params.seq_len = 6; 738 } 739 740 return cfg80211_set_encryption( 741 rdev, dev, 742 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 743 addr, remove, 744 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 745 idx, ¶ms); 746 } 747 748 static int cfg80211_wext_giwencode(struct net_device *dev, 749 struct iw_request_info *info, 750 struct iw_point *erq, char *keybuf) 751 { 752 struct wireless_dev *wdev = dev->ieee80211_ptr; 753 int idx; 754 755 if (wdev->iftype != NL80211_IFTYPE_STATION && 756 wdev->iftype != NL80211_IFTYPE_ADHOC) 757 return -EOPNOTSUPP; 758 759 idx = erq->flags & IW_ENCODE_INDEX; 760 if (idx == 0) { 761 idx = wdev->wext.default_key; 762 if (idx < 0) 763 idx = 0; 764 } else if (idx < 1 || idx > 4) 765 return -EINVAL; 766 else 767 idx--; 768 769 erq->flags = idx + 1; 770 771 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 772 erq->flags |= IW_ENCODE_DISABLED; 773 erq->length = 0; 774 return 0; 775 } 776 777 erq->length = min_t(size_t, erq->length, 778 wdev->wext.keys->params[idx].key_len); 779 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 780 erq->flags |= IW_ENCODE_ENABLED; 781 782 return 0; 783 } 784 785 static int cfg80211_wext_siwfreq(struct net_device *dev, 786 struct iw_request_info *info, 787 struct iw_freq *wextfreq, char *extra) 788 { 789 struct wireless_dev *wdev = dev->ieee80211_ptr; 790 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 791 int freq, err; 792 793 switch (wdev->iftype) { 794 case NL80211_IFTYPE_STATION: 795 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 796 case NL80211_IFTYPE_ADHOC: 797 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 798 case NL80211_IFTYPE_MONITOR: 799 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 800 if (freq < 0) 801 return freq; 802 if (freq == 0) 803 return -EINVAL; 804 mutex_lock(&rdev->devlist_mtx); 805 err = cfg80211_set_monitor_channel(rdev, freq, NL80211_CHAN_NO_HT); 806 mutex_unlock(&rdev->devlist_mtx); 807 return err; 808 case NL80211_IFTYPE_MESH_POINT: 809 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 810 if (freq < 0) 811 return freq; 812 if (freq == 0) 813 return -EINVAL; 814 mutex_lock(&rdev->devlist_mtx); 815 err = cfg80211_set_mesh_freq(rdev, wdev, freq, 816 NL80211_CHAN_NO_HT); 817 mutex_unlock(&rdev->devlist_mtx); 818 return err; 819 default: 820 return -EOPNOTSUPP; 821 } 822 } 823 824 static int cfg80211_wext_giwfreq(struct net_device *dev, 825 struct iw_request_info *info, 826 struct iw_freq *freq, char *extra) 827 { 828 struct wireless_dev *wdev = dev->ieee80211_ptr; 829 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 830 struct ieee80211_channel *chan; 831 enum nl80211_channel_type channel_type; 832 833 switch (wdev->iftype) { 834 case NL80211_IFTYPE_STATION: 835 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 836 case NL80211_IFTYPE_ADHOC: 837 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 838 case NL80211_IFTYPE_MONITOR: 839 if (!rdev->ops->get_channel) 840 return -EINVAL; 841 842 chan = rdev->ops->get_channel(wdev->wiphy, wdev, &channel_type); 843 if (!chan) 844 return -EINVAL; 845 freq->m = chan->center_freq; 846 freq->e = 6; 847 return 0; 848 default: 849 return -EINVAL; 850 } 851 } 852 853 static int cfg80211_wext_siwtxpower(struct net_device *dev, 854 struct iw_request_info *info, 855 union iwreq_data *data, char *extra) 856 { 857 struct wireless_dev *wdev = dev->ieee80211_ptr; 858 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 859 enum nl80211_tx_power_setting type; 860 int dbm = 0; 861 862 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 863 return -EINVAL; 864 if (data->txpower.flags & IW_TXPOW_RANGE) 865 return -EINVAL; 866 867 if (!rdev->ops->set_tx_power) 868 return -EOPNOTSUPP; 869 870 /* only change when not disabling */ 871 if (!data->txpower.disabled) { 872 rfkill_set_sw_state(rdev->rfkill, false); 873 874 if (data->txpower.fixed) { 875 /* 876 * wext doesn't support negative values, see 877 * below where it's for automatic 878 */ 879 if (data->txpower.value < 0) 880 return -EINVAL; 881 dbm = data->txpower.value; 882 type = NL80211_TX_POWER_FIXED; 883 /* TODO: do regulatory check! */ 884 } else { 885 /* 886 * Automatic power level setting, max being the value 887 * passed in from userland. 888 */ 889 if (data->txpower.value < 0) { 890 type = NL80211_TX_POWER_AUTOMATIC; 891 } else { 892 dbm = data->txpower.value; 893 type = NL80211_TX_POWER_LIMITED; 894 } 895 } 896 } else { 897 rfkill_set_sw_state(rdev->rfkill, true); 898 schedule_work(&rdev->rfkill_sync); 899 return 0; 900 } 901 902 return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm)); 903 } 904 905 static int cfg80211_wext_giwtxpower(struct net_device *dev, 906 struct iw_request_info *info, 907 union iwreq_data *data, char *extra) 908 { 909 struct wireless_dev *wdev = dev->ieee80211_ptr; 910 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 911 int err, val; 912 913 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 914 return -EINVAL; 915 if (data->txpower.flags & IW_TXPOW_RANGE) 916 return -EINVAL; 917 918 if (!rdev->ops->get_tx_power) 919 return -EOPNOTSUPP; 920 921 err = rdev->ops->get_tx_power(wdev->wiphy, &val); 922 if (err) 923 return err; 924 925 /* well... oh well */ 926 data->txpower.fixed = 1; 927 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 928 data->txpower.value = val; 929 data->txpower.flags = IW_TXPOW_DBM; 930 931 return 0; 932 } 933 934 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 935 s32 auth_alg) 936 { 937 int nr_alg = 0; 938 939 if (!auth_alg) 940 return -EINVAL; 941 942 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 943 IW_AUTH_ALG_SHARED_KEY | 944 IW_AUTH_ALG_LEAP)) 945 return -EINVAL; 946 947 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 948 nr_alg++; 949 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 950 } 951 952 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 953 nr_alg++; 954 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 955 } 956 957 if (auth_alg & IW_AUTH_ALG_LEAP) { 958 nr_alg++; 959 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 960 } 961 962 if (nr_alg > 1) 963 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 964 965 return 0; 966 } 967 968 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 969 { 970 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 971 IW_AUTH_WPA_VERSION_WPA2| 972 IW_AUTH_WPA_VERSION_DISABLED)) 973 return -EINVAL; 974 975 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 976 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 977 IW_AUTH_WPA_VERSION_WPA2))) 978 return -EINVAL; 979 980 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 981 wdev->wext.connect.crypto.wpa_versions &= 982 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 983 984 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 985 wdev->wext.connect.crypto.wpa_versions |= 986 NL80211_WPA_VERSION_1; 987 988 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 989 wdev->wext.connect.crypto.wpa_versions |= 990 NL80211_WPA_VERSION_2; 991 992 return 0; 993 } 994 995 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 996 { 997 if (cipher & IW_AUTH_CIPHER_WEP40) 998 wdev->wext.connect.crypto.cipher_group = 999 WLAN_CIPHER_SUITE_WEP40; 1000 else if (cipher & IW_AUTH_CIPHER_WEP104) 1001 wdev->wext.connect.crypto.cipher_group = 1002 WLAN_CIPHER_SUITE_WEP104; 1003 else if (cipher & IW_AUTH_CIPHER_TKIP) 1004 wdev->wext.connect.crypto.cipher_group = 1005 WLAN_CIPHER_SUITE_TKIP; 1006 else if (cipher & IW_AUTH_CIPHER_CCMP) 1007 wdev->wext.connect.crypto.cipher_group = 1008 WLAN_CIPHER_SUITE_CCMP; 1009 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 1010 wdev->wext.connect.crypto.cipher_group = 1011 WLAN_CIPHER_SUITE_AES_CMAC; 1012 else if (cipher & IW_AUTH_CIPHER_NONE) 1013 wdev->wext.connect.crypto.cipher_group = 0; 1014 else 1015 return -EINVAL; 1016 1017 return 0; 1018 } 1019 1020 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 1021 { 1022 int nr_ciphers = 0; 1023 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 1024 1025 if (cipher & IW_AUTH_CIPHER_WEP40) { 1026 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 1027 nr_ciphers++; 1028 } 1029 1030 if (cipher & IW_AUTH_CIPHER_WEP104) { 1031 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1032 nr_ciphers++; 1033 } 1034 1035 if (cipher & IW_AUTH_CIPHER_TKIP) { 1036 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1037 nr_ciphers++; 1038 } 1039 1040 if (cipher & IW_AUTH_CIPHER_CCMP) { 1041 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1042 nr_ciphers++; 1043 } 1044 1045 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1046 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1047 nr_ciphers++; 1048 } 1049 1050 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1051 1052 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1053 1054 return 0; 1055 } 1056 1057 1058 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1059 { 1060 int nr_akm_suites = 0; 1061 1062 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1063 IW_AUTH_KEY_MGMT_PSK)) 1064 return -EINVAL; 1065 1066 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1067 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1068 WLAN_AKM_SUITE_8021X; 1069 nr_akm_suites++; 1070 } 1071 1072 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1073 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1074 WLAN_AKM_SUITE_PSK; 1075 nr_akm_suites++; 1076 } 1077 1078 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1079 1080 return 0; 1081 } 1082 1083 static int cfg80211_wext_siwauth(struct net_device *dev, 1084 struct iw_request_info *info, 1085 struct iw_param *data, char *extra) 1086 { 1087 struct wireless_dev *wdev = dev->ieee80211_ptr; 1088 1089 if (wdev->iftype != NL80211_IFTYPE_STATION) 1090 return -EOPNOTSUPP; 1091 1092 switch (data->flags & IW_AUTH_INDEX) { 1093 case IW_AUTH_PRIVACY_INVOKED: 1094 wdev->wext.connect.privacy = data->value; 1095 return 0; 1096 case IW_AUTH_WPA_VERSION: 1097 return cfg80211_set_wpa_version(wdev, data->value); 1098 case IW_AUTH_CIPHER_GROUP: 1099 return cfg80211_set_cipher_group(wdev, data->value); 1100 case IW_AUTH_KEY_MGMT: 1101 return cfg80211_set_key_mgt(wdev, data->value); 1102 case IW_AUTH_CIPHER_PAIRWISE: 1103 return cfg80211_set_cipher_pairwise(wdev, data->value); 1104 case IW_AUTH_80211_AUTH_ALG: 1105 return cfg80211_set_auth_alg(wdev, data->value); 1106 case IW_AUTH_WPA_ENABLED: 1107 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1108 case IW_AUTH_DROP_UNENCRYPTED: 1109 case IW_AUTH_MFP: 1110 return 0; 1111 default: 1112 return -EOPNOTSUPP; 1113 } 1114 } 1115 1116 static int cfg80211_wext_giwauth(struct net_device *dev, 1117 struct iw_request_info *info, 1118 struct iw_param *data, char *extra) 1119 { 1120 /* XXX: what do we need? */ 1121 1122 return -EOPNOTSUPP; 1123 } 1124 1125 static int cfg80211_wext_siwpower(struct net_device *dev, 1126 struct iw_request_info *info, 1127 struct iw_param *wrq, char *extra) 1128 { 1129 struct wireless_dev *wdev = dev->ieee80211_ptr; 1130 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1131 bool ps = wdev->ps; 1132 int timeout = wdev->ps_timeout; 1133 int err; 1134 1135 if (wdev->iftype != NL80211_IFTYPE_STATION) 1136 return -EINVAL; 1137 1138 if (!rdev->ops->set_power_mgmt) 1139 return -EOPNOTSUPP; 1140 1141 if (wrq->disabled) { 1142 ps = false; 1143 } else { 1144 switch (wrq->flags & IW_POWER_MODE) { 1145 case IW_POWER_ON: /* If not specified */ 1146 case IW_POWER_MODE: /* If set all mask */ 1147 case IW_POWER_ALL_R: /* If explicitely state all */ 1148 ps = true; 1149 break; 1150 default: /* Otherwise we ignore */ 1151 return -EINVAL; 1152 } 1153 1154 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1155 return -EINVAL; 1156 1157 if (wrq->flags & IW_POWER_TIMEOUT) 1158 timeout = wrq->value / 1000; 1159 } 1160 1161 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout); 1162 if (err) 1163 return err; 1164 1165 wdev->ps = ps; 1166 wdev->ps_timeout = timeout; 1167 1168 return 0; 1169 1170 } 1171 1172 static int cfg80211_wext_giwpower(struct net_device *dev, 1173 struct iw_request_info *info, 1174 struct iw_param *wrq, char *extra) 1175 { 1176 struct wireless_dev *wdev = dev->ieee80211_ptr; 1177 1178 wrq->disabled = !wdev->ps; 1179 1180 return 0; 1181 } 1182 1183 static int cfg80211_wds_wext_siwap(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 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1189 int err; 1190 1191 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1192 return -EINVAL; 1193 1194 if (addr->sa_family != ARPHRD_ETHER) 1195 return -EINVAL; 1196 1197 if (netif_running(dev)) 1198 return -EBUSY; 1199 1200 if (!rdev->ops->set_wds_peer) 1201 return -EOPNOTSUPP; 1202 1203 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data); 1204 if (err) 1205 return err; 1206 1207 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1208 1209 return 0; 1210 } 1211 1212 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1213 struct iw_request_info *info, 1214 struct sockaddr *addr, char *extra) 1215 { 1216 struct wireless_dev *wdev = dev->ieee80211_ptr; 1217 1218 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1219 return -EINVAL; 1220 1221 addr->sa_family = ARPHRD_ETHER; 1222 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1223 1224 return 0; 1225 } 1226 1227 static int cfg80211_wext_siwrate(struct net_device *dev, 1228 struct iw_request_info *info, 1229 struct iw_param *rate, char *extra) 1230 { 1231 struct wireless_dev *wdev = dev->ieee80211_ptr; 1232 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1233 struct cfg80211_bitrate_mask mask; 1234 u32 fixed, maxrate; 1235 struct ieee80211_supported_band *sband; 1236 int band, ridx; 1237 bool match = false; 1238 1239 if (!rdev->ops->set_bitrate_mask) 1240 return -EOPNOTSUPP; 1241 1242 memset(&mask, 0, sizeof(mask)); 1243 fixed = 0; 1244 maxrate = (u32)-1; 1245 1246 if (rate->value < 0) { 1247 /* nothing */ 1248 } else if (rate->fixed) { 1249 fixed = rate->value / 100000; 1250 } else { 1251 maxrate = rate->value / 100000; 1252 } 1253 1254 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1255 sband = wdev->wiphy->bands[band]; 1256 if (sband == NULL) 1257 continue; 1258 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1259 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1260 if (fixed == srate->bitrate) { 1261 mask.control[band].legacy = 1 << ridx; 1262 match = true; 1263 break; 1264 } 1265 if (srate->bitrate <= maxrate) { 1266 mask.control[band].legacy |= 1 << ridx; 1267 match = true; 1268 } 1269 } 1270 } 1271 1272 if (!match) 1273 return -EINVAL; 1274 1275 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask); 1276 } 1277 1278 static int cfg80211_wext_giwrate(struct net_device *dev, 1279 struct iw_request_info *info, 1280 struct iw_param *rate, char *extra) 1281 { 1282 struct wireless_dev *wdev = dev->ieee80211_ptr; 1283 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1284 /* we are under RTNL - globally locked - so can use a static struct */ 1285 static struct station_info sinfo; 1286 u8 addr[ETH_ALEN]; 1287 int err; 1288 1289 if (wdev->iftype != NL80211_IFTYPE_STATION) 1290 return -EOPNOTSUPP; 1291 1292 if (!rdev->ops->get_station) 1293 return -EOPNOTSUPP; 1294 1295 err = 0; 1296 wdev_lock(wdev); 1297 if (wdev->current_bss) 1298 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1299 else 1300 err = -EOPNOTSUPP; 1301 wdev_unlock(wdev); 1302 if (err) 1303 return err; 1304 1305 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo); 1306 if (err) 1307 return err; 1308 1309 if (!(sinfo.filled & STATION_INFO_TX_BITRATE)) 1310 return -EOPNOTSUPP; 1311 1312 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1313 1314 return 0; 1315 } 1316 1317 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1318 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1319 { 1320 struct wireless_dev *wdev = dev->ieee80211_ptr; 1321 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1322 /* we are under RTNL - globally locked - so can use static structs */ 1323 static struct iw_statistics wstats; 1324 static struct station_info sinfo; 1325 u8 bssid[ETH_ALEN]; 1326 1327 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1328 return NULL; 1329 1330 if (!rdev->ops->get_station) 1331 return NULL; 1332 1333 /* Grab BSSID of current BSS, if any */ 1334 wdev_lock(wdev); 1335 if (!wdev->current_bss) { 1336 wdev_unlock(wdev); 1337 return NULL; 1338 } 1339 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1340 wdev_unlock(wdev); 1341 1342 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo)) 1343 return NULL; 1344 1345 memset(&wstats, 0, sizeof(wstats)); 1346 1347 switch (rdev->wiphy.signal_type) { 1348 case CFG80211_SIGNAL_TYPE_MBM: 1349 if (sinfo.filled & STATION_INFO_SIGNAL) { 1350 int sig = sinfo.signal; 1351 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1352 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1353 wstats.qual.updated |= IW_QUAL_DBM; 1354 wstats.qual.level = sig; 1355 if (sig < -110) 1356 sig = -110; 1357 else if (sig > -40) 1358 sig = -40; 1359 wstats.qual.qual = sig + 110; 1360 break; 1361 } 1362 case CFG80211_SIGNAL_TYPE_UNSPEC: 1363 if (sinfo.filled & STATION_INFO_SIGNAL) { 1364 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1365 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1366 wstats.qual.level = sinfo.signal; 1367 wstats.qual.qual = sinfo.signal; 1368 break; 1369 } 1370 default: 1371 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1372 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1373 } 1374 1375 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1376 if (sinfo.filled & STATION_INFO_RX_DROP_MISC) 1377 wstats.discard.misc = sinfo.rx_dropped_misc; 1378 if (sinfo.filled & STATION_INFO_TX_FAILED) 1379 wstats.discard.retries = sinfo.tx_failed; 1380 1381 return &wstats; 1382 } 1383 1384 static int cfg80211_wext_siwap(struct net_device *dev, 1385 struct iw_request_info *info, 1386 struct sockaddr *ap_addr, char *extra) 1387 { 1388 struct wireless_dev *wdev = dev->ieee80211_ptr; 1389 1390 switch (wdev->iftype) { 1391 case NL80211_IFTYPE_ADHOC: 1392 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1393 case NL80211_IFTYPE_STATION: 1394 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1395 case NL80211_IFTYPE_WDS: 1396 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1397 default: 1398 return -EOPNOTSUPP; 1399 } 1400 } 1401 1402 static int cfg80211_wext_giwap(struct net_device *dev, 1403 struct iw_request_info *info, 1404 struct sockaddr *ap_addr, char *extra) 1405 { 1406 struct wireless_dev *wdev = dev->ieee80211_ptr; 1407 1408 switch (wdev->iftype) { 1409 case NL80211_IFTYPE_ADHOC: 1410 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1411 case NL80211_IFTYPE_STATION: 1412 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1413 case NL80211_IFTYPE_WDS: 1414 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1415 default: 1416 return -EOPNOTSUPP; 1417 } 1418 } 1419 1420 static int cfg80211_wext_siwessid(struct net_device *dev, 1421 struct iw_request_info *info, 1422 struct iw_point *data, char *ssid) 1423 { 1424 struct wireless_dev *wdev = dev->ieee80211_ptr; 1425 1426 switch (wdev->iftype) { 1427 case NL80211_IFTYPE_ADHOC: 1428 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1429 case NL80211_IFTYPE_STATION: 1430 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1431 default: 1432 return -EOPNOTSUPP; 1433 } 1434 } 1435 1436 static int cfg80211_wext_giwessid(struct net_device *dev, 1437 struct iw_request_info *info, 1438 struct iw_point *data, char *ssid) 1439 { 1440 struct wireless_dev *wdev = dev->ieee80211_ptr; 1441 1442 data->flags = 0; 1443 data->length = 0; 1444 1445 switch (wdev->iftype) { 1446 case NL80211_IFTYPE_ADHOC: 1447 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1448 case NL80211_IFTYPE_STATION: 1449 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1450 default: 1451 return -EOPNOTSUPP; 1452 } 1453 } 1454 1455 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1456 struct iw_request_info *info, 1457 struct iw_point *data, char *extra) 1458 { 1459 struct wireless_dev *wdev = dev->ieee80211_ptr; 1460 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1461 struct cfg80211_pmksa cfg_pmksa; 1462 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1463 1464 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1465 1466 if (wdev->iftype != NL80211_IFTYPE_STATION) 1467 return -EINVAL; 1468 1469 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1470 cfg_pmksa.pmkid = pmksa->pmkid; 1471 1472 switch (pmksa->cmd) { 1473 case IW_PMKSA_ADD: 1474 if (!rdev->ops->set_pmksa) 1475 return -EOPNOTSUPP; 1476 1477 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1478 1479 case IW_PMKSA_REMOVE: 1480 if (!rdev->ops->del_pmksa) 1481 return -EOPNOTSUPP; 1482 1483 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1484 1485 case IW_PMKSA_FLUSH: 1486 if (!rdev->ops->flush_pmksa) 1487 return -EOPNOTSUPP; 1488 1489 return rdev->ops->flush_pmksa(&rdev->wiphy, dev); 1490 1491 default: 1492 return -EOPNOTSUPP; 1493 } 1494 } 1495 1496 static const iw_handler cfg80211_handlers[] = { 1497 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1498 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1499 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1500 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1501 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1502 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1503 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1504 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1505 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1506 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1507 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1508 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1509 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1510 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1511 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1512 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1513 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1514 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1515 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1516 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1517 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1518 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1519 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1520 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1521 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1522 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1523 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1524 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1525 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1526 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1527 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1528 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1529 }; 1530 1531 const struct iw_handler_def cfg80211_wext_handler = { 1532 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1533 .standard = cfg80211_handlers, 1534 .get_wireless_stats = cfg80211_wireless_stats, 1535 }; 1536