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 default: 786 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 787 if (freq < 0) 788 return freq; 789 if (freq == 0) 790 return -EINVAL; 791 mutex_lock(&rdev->devlist_mtx); 792 err = rdev_set_freq(rdev, NULL, freq, NL80211_CHAN_NO_HT); 793 mutex_unlock(&rdev->devlist_mtx); 794 return err; 795 } 796 } 797 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq); 798 799 int cfg80211_wext_giwfreq(struct net_device *dev, 800 struct iw_request_info *info, 801 struct iw_freq *freq, char *extra) 802 { 803 struct wireless_dev *wdev = dev->ieee80211_ptr; 804 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 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 default: 812 if (!rdev->channel) 813 return -EINVAL; 814 freq->m = rdev->channel->center_freq; 815 freq->e = 6; 816 return 0; 817 } 818 } 819 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq); 820 821 int cfg80211_wext_siwtxpower(struct net_device *dev, 822 struct iw_request_info *info, 823 union iwreq_data *data, char *extra) 824 { 825 struct wireless_dev *wdev = dev->ieee80211_ptr; 826 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 827 enum tx_power_setting type; 828 int dbm = 0; 829 830 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 831 return -EINVAL; 832 if (data->txpower.flags & IW_TXPOW_RANGE) 833 return -EINVAL; 834 835 if (!rdev->ops->set_tx_power) 836 return -EOPNOTSUPP; 837 838 /* only change when not disabling */ 839 if (!data->txpower.disabled) { 840 rfkill_set_sw_state(rdev->rfkill, false); 841 842 if (data->txpower.fixed) { 843 /* 844 * wext doesn't support negative values, see 845 * below where it's for automatic 846 */ 847 if (data->txpower.value < 0) 848 return -EINVAL; 849 dbm = data->txpower.value; 850 type = TX_POWER_FIXED; 851 /* TODO: do regulatory check! */ 852 } else { 853 /* 854 * Automatic power level setting, max being the value 855 * passed in from userland. 856 */ 857 if (data->txpower.value < 0) { 858 type = TX_POWER_AUTOMATIC; 859 } else { 860 dbm = data->txpower.value; 861 type = TX_POWER_LIMITED; 862 } 863 } 864 } else { 865 rfkill_set_sw_state(rdev->rfkill, true); 866 schedule_work(&rdev->rfkill_sync); 867 return 0; 868 } 869 870 return rdev->ops->set_tx_power(wdev->wiphy, type, dbm); 871 } 872 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower); 873 874 int cfg80211_wext_giwtxpower(struct net_device *dev, 875 struct iw_request_info *info, 876 union iwreq_data *data, char *extra) 877 { 878 struct wireless_dev *wdev = dev->ieee80211_ptr; 879 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 880 int err, val; 881 882 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 883 return -EINVAL; 884 if (data->txpower.flags & IW_TXPOW_RANGE) 885 return -EINVAL; 886 887 if (!rdev->ops->get_tx_power) 888 return -EOPNOTSUPP; 889 890 err = rdev->ops->get_tx_power(wdev->wiphy, &val); 891 if (err) 892 return err; 893 894 /* well... oh well */ 895 data->txpower.fixed = 1; 896 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 897 data->txpower.value = val; 898 data->txpower.flags = IW_TXPOW_DBM; 899 900 return 0; 901 } 902 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower); 903 904 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 905 s32 auth_alg) 906 { 907 int nr_alg = 0; 908 909 if (!auth_alg) 910 return -EINVAL; 911 912 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 913 IW_AUTH_ALG_SHARED_KEY | 914 IW_AUTH_ALG_LEAP)) 915 return -EINVAL; 916 917 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 918 nr_alg++; 919 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 920 } 921 922 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 923 nr_alg++; 924 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 925 } 926 927 if (auth_alg & IW_AUTH_ALG_LEAP) { 928 nr_alg++; 929 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 930 } 931 932 if (nr_alg > 1) 933 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 934 935 return 0; 936 } 937 938 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 939 { 940 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 941 IW_AUTH_WPA_VERSION_WPA2| 942 IW_AUTH_WPA_VERSION_DISABLED)) 943 return -EINVAL; 944 945 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 946 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 947 IW_AUTH_WPA_VERSION_WPA2))) 948 return -EINVAL; 949 950 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 951 wdev->wext.connect.crypto.wpa_versions &= 952 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 953 954 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 955 wdev->wext.connect.crypto.wpa_versions |= 956 NL80211_WPA_VERSION_1; 957 958 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 959 wdev->wext.connect.crypto.wpa_versions |= 960 NL80211_WPA_VERSION_2; 961 962 return 0; 963 } 964 965 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 966 { 967 if (cipher & IW_AUTH_CIPHER_WEP40) 968 wdev->wext.connect.crypto.cipher_group = 969 WLAN_CIPHER_SUITE_WEP40; 970 else if (cipher & IW_AUTH_CIPHER_WEP104) 971 wdev->wext.connect.crypto.cipher_group = 972 WLAN_CIPHER_SUITE_WEP104; 973 else if (cipher & IW_AUTH_CIPHER_TKIP) 974 wdev->wext.connect.crypto.cipher_group = 975 WLAN_CIPHER_SUITE_TKIP; 976 else if (cipher & IW_AUTH_CIPHER_CCMP) 977 wdev->wext.connect.crypto.cipher_group = 978 WLAN_CIPHER_SUITE_CCMP; 979 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 980 wdev->wext.connect.crypto.cipher_group = 981 WLAN_CIPHER_SUITE_AES_CMAC; 982 else if (cipher & IW_AUTH_CIPHER_NONE) 983 wdev->wext.connect.crypto.cipher_group = 0; 984 else 985 return -EINVAL; 986 987 return 0; 988 } 989 990 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 991 { 992 int nr_ciphers = 0; 993 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 994 995 if (cipher & IW_AUTH_CIPHER_WEP40) { 996 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 997 nr_ciphers++; 998 } 999 1000 if (cipher & IW_AUTH_CIPHER_WEP104) { 1001 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1002 nr_ciphers++; 1003 } 1004 1005 if (cipher & IW_AUTH_CIPHER_TKIP) { 1006 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1007 nr_ciphers++; 1008 } 1009 1010 if (cipher & IW_AUTH_CIPHER_CCMP) { 1011 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1012 nr_ciphers++; 1013 } 1014 1015 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1016 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1017 nr_ciphers++; 1018 } 1019 1020 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1021 1022 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1023 1024 return 0; 1025 } 1026 1027 1028 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1029 { 1030 int nr_akm_suites = 0; 1031 1032 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1033 IW_AUTH_KEY_MGMT_PSK)) 1034 return -EINVAL; 1035 1036 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1037 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1038 WLAN_AKM_SUITE_8021X; 1039 nr_akm_suites++; 1040 } 1041 1042 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1043 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1044 WLAN_AKM_SUITE_PSK; 1045 nr_akm_suites++; 1046 } 1047 1048 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1049 1050 return 0; 1051 } 1052 1053 int cfg80211_wext_siwauth(struct net_device *dev, 1054 struct iw_request_info *info, 1055 struct iw_param *data, char *extra) 1056 { 1057 struct wireless_dev *wdev = dev->ieee80211_ptr; 1058 1059 if (wdev->iftype != NL80211_IFTYPE_STATION) 1060 return -EOPNOTSUPP; 1061 1062 switch (data->flags & IW_AUTH_INDEX) { 1063 case IW_AUTH_PRIVACY_INVOKED: 1064 wdev->wext.connect.privacy = data->value; 1065 return 0; 1066 case IW_AUTH_WPA_VERSION: 1067 return cfg80211_set_wpa_version(wdev, data->value); 1068 case IW_AUTH_CIPHER_GROUP: 1069 return cfg80211_set_cipher_group(wdev, data->value); 1070 case IW_AUTH_KEY_MGMT: 1071 return cfg80211_set_key_mgt(wdev, data->value); 1072 case IW_AUTH_CIPHER_PAIRWISE: 1073 return cfg80211_set_cipher_pairwise(wdev, data->value); 1074 case IW_AUTH_80211_AUTH_ALG: 1075 return cfg80211_set_auth_alg(wdev, data->value); 1076 case IW_AUTH_WPA_ENABLED: 1077 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1078 case IW_AUTH_DROP_UNENCRYPTED: 1079 case IW_AUTH_MFP: 1080 return 0; 1081 default: 1082 return -EOPNOTSUPP; 1083 } 1084 } 1085 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth); 1086 1087 int cfg80211_wext_giwauth(struct net_device *dev, 1088 struct iw_request_info *info, 1089 struct iw_param *data, char *extra) 1090 { 1091 /* XXX: what do we need? */ 1092 1093 return -EOPNOTSUPP; 1094 } 1095 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth); 1096 1097 int cfg80211_wext_siwpower(struct net_device *dev, 1098 struct iw_request_info *info, 1099 struct iw_param *wrq, char *extra) 1100 { 1101 struct wireless_dev *wdev = dev->ieee80211_ptr; 1102 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1103 bool ps = wdev->ps; 1104 int timeout = wdev->ps_timeout; 1105 int err; 1106 1107 if (wdev->iftype != NL80211_IFTYPE_STATION) 1108 return -EINVAL; 1109 1110 if (!rdev->ops->set_power_mgmt) 1111 return -EOPNOTSUPP; 1112 1113 if (wrq->disabled) { 1114 ps = false; 1115 } else { 1116 switch (wrq->flags & IW_POWER_MODE) { 1117 case IW_POWER_ON: /* If not specified */ 1118 case IW_POWER_MODE: /* If set all mask */ 1119 case IW_POWER_ALL_R: /* If explicitely state all */ 1120 ps = true; 1121 break; 1122 default: /* Otherwise we ignore */ 1123 return -EINVAL; 1124 } 1125 1126 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1127 return -EINVAL; 1128 1129 if (wrq->flags & IW_POWER_TIMEOUT) 1130 timeout = wrq->value / 1000; 1131 } 1132 1133 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout); 1134 if (err) 1135 return err; 1136 1137 wdev->ps = ps; 1138 wdev->ps_timeout = timeout; 1139 1140 return 0; 1141 1142 } 1143 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower); 1144 1145 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 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower); 1156 1157 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1158 struct iw_request_info *info, 1159 struct sockaddr *addr, char *extra) 1160 { 1161 struct wireless_dev *wdev = dev->ieee80211_ptr; 1162 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1163 int err; 1164 1165 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1166 return -EINVAL; 1167 1168 if (addr->sa_family != ARPHRD_ETHER) 1169 return -EINVAL; 1170 1171 if (netif_running(dev)) 1172 return -EBUSY; 1173 1174 if (!rdev->ops->set_wds_peer) 1175 return -EOPNOTSUPP; 1176 1177 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data); 1178 if (err) 1179 return err; 1180 1181 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1182 1183 return 0; 1184 } 1185 1186 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1187 struct iw_request_info *info, 1188 struct sockaddr *addr, char *extra) 1189 { 1190 struct wireless_dev *wdev = dev->ieee80211_ptr; 1191 1192 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1193 return -EINVAL; 1194 1195 addr->sa_family = ARPHRD_ETHER; 1196 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1197 1198 return 0; 1199 } 1200 1201 int cfg80211_wext_siwrate(struct net_device *dev, 1202 struct iw_request_info *info, 1203 struct iw_param *rate, char *extra) 1204 { 1205 struct wireless_dev *wdev = dev->ieee80211_ptr; 1206 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1207 struct cfg80211_bitrate_mask mask; 1208 u32 fixed, maxrate; 1209 struct ieee80211_supported_band *sband; 1210 int band, ridx; 1211 bool match = false; 1212 1213 if (!rdev->ops->set_bitrate_mask) 1214 return -EOPNOTSUPP; 1215 1216 memset(&mask, 0, sizeof(mask)); 1217 fixed = 0; 1218 maxrate = (u32)-1; 1219 1220 if (rate->value < 0) { 1221 /* nothing */ 1222 } else if (rate->fixed) { 1223 fixed = rate->value / 100000; 1224 } else { 1225 maxrate = rate->value / 100000; 1226 } 1227 1228 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1229 sband = wdev->wiphy->bands[band]; 1230 if (sband == NULL) 1231 continue; 1232 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1233 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1234 if (fixed == srate->bitrate) { 1235 mask.control[band].legacy = 1 << ridx; 1236 match = true; 1237 break; 1238 } 1239 if (srate->bitrate <= maxrate) { 1240 mask.control[band].legacy |= 1 << ridx; 1241 match = true; 1242 } 1243 } 1244 } 1245 1246 if (!match) 1247 return -EINVAL; 1248 1249 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask); 1250 } 1251 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate); 1252 1253 int cfg80211_wext_giwrate(struct net_device *dev, 1254 struct iw_request_info *info, 1255 struct iw_param *rate, char *extra) 1256 { 1257 struct wireless_dev *wdev = dev->ieee80211_ptr; 1258 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1259 /* we are under RTNL - globally locked - so can use a static struct */ 1260 static struct station_info sinfo; 1261 u8 addr[ETH_ALEN]; 1262 int err; 1263 1264 if (wdev->iftype != NL80211_IFTYPE_STATION) 1265 return -EOPNOTSUPP; 1266 1267 if (!rdev->ops->get_station) 1268 return -EOPNOTSUPP; 1269 1270 err = 0; 1271 wdev_lock(wdev); 1272 if (wdev->current_bss) 1273 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1274 else 1275 err = -EOPNOTSUPP; 1276 wdev_unlock(wdev); 1277 if (err) 1278 return err; 1279 1280 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo); 1281 if (err) 1282 return err; 1283 1284 if (!(sinfo.filled & STATION_INFO_TX_BITRATE)) 1285 return -EOPNOTSUPP; 1286 1287 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1288 1289 return 0; 1290 } 1291 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate); 1292 1293 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1294 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1295 { 1296 struct wireless_dev *wdev = dev->ieee80211_ptr; 1297 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1298 /* we are under RTNL - globally locked - so can use static structs */ 1299 static struct iw_statistics wstats; 1300 static struct station_info sinfo; 1301 u8 bssid[ETH_ALEN]; 1302 1303 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1304 return NULL; 1305 1306 if (!rdev->ops->get_station) 1307 return NULL; 1308 1309 /* Grab BSSID of current BSS, if any */ 1310 wdev_lock(wdev); 1311 if (!wdev->current_bss) { 1312 wdev_unlock(wdev); 1313 return NULL; 1314 } 1315 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1316 wdev_unlock(wdev); 1317 1318 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo)) 1319 return NULL; 1320 1321 memset(&wstats, 0, sizeof(wstats)); 1322 1323 switch (rdev->wiphy.signal_type) { 1324 case CFG80211_SIGNAL_TYPE_MBM: 1325 if (sinfo.filled & STATION_INFO_SIGNAL) { 1326 int sig = sinfo.signal; 1327 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1328 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1329 wstats.qual.updated |= IW_QUAL_DBM; 1330 wstats.qual.level = sig; 1331 if (sig < -110) 1332 sig = -110; 1333 else if (sig > -40) 1334 sig = -40; 1335 wstats.qual.qual = sig + 110; 1336 break; 1337 } 1338 case CFG80211_SIGNAL_TYPE_UNSPEC: 1339 if (sinfo.filled & STATION_INFO_SIGNAL) { 1340 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1341 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1342 wstats.qual.level = sinfo.signal; 1343 wstats.qual.qual = sinfo.signal; 1344 break; 1345 } 1346 default: 1347 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1348 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1349 } 1350 1351 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1352 1353 return &wstats; 1354 } 1355 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats); 1356 1357 int cfg80211_wext_siwap(struct net_device *dev, 1358 struct iw_request_info *info, 1359 struct sockaddr *ap_addr, char *extra) 1360 { 1361 struct wireless_dev *wdev = dev->ieee80211_ptr; 1362 1363 switch (wdev->iftype) { 1364 case NL80211_IFTYPE_ADHOC: 1365 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1366 case NL80211_IFTYPE_STATION: 1367 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1368 case NL80211_IFTYPE_WDS: 1369 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1370 default: 1371 return -EOPNOTSUPP; 1372 } 1373 } 1374 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap); 1375 1376 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 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap); 1394 1395 int cfg80211_wext_siwessid(struct net_device *dev, 1396 struct iw_request_info *info, 1397 struct iw_point *data, char *ssid) 1398 { 1399 struct wireless_dev *wdev = dev->ieee80211_ptr; 1400 1401 switch (wdev->iftype) { 1402 case NL80211_IFTYPE_ADHOC: 1403 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1404 case NL80211_IFTYPE_STATION: 1405 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1406 default: 1407 return -EOPNOTSUPP; 1408 } 1409 } 1410 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid); 1411 1412 int cfg80211_wext_giwessid(struct net_device *dev, 1413 struct iw_request_info *info, 1414 struct iw_point *data, char *ssid) 1415 { 1416 struct wireless_dev *wdev = dev->ieee80211_ptr; 1417 1418 switch (wdev->iftype) { 1419 case NL80211_IFTYPE_ADHOC: 1420 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1421 case NL80211_IFTYPE_STATION: 1422 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1423 default: 1424 return -EOPNOTSUPP; 1425 } 1426 } 1427 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid); 1428 1429 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_dev(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->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1452 1453 case IW_PMKSA_REMOVE: 1454 if (!rdev->ops->del_pmksa) 1455 return -EOPNOTSUPP; 1456 1457 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1458 1459 case IW_PMKSA_FLUSH: 1460 if (!rdev->ops->flush_pmksa) 1461 return -EOPNOTSUPP; 1462 1463 return rdev->ops->flush_pmksa(&rdev->wiphy, 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