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, bool pairwise, 436 const u8 *addr, bool remove, bool tx_key, 437 int idx, struct key_params *params) 438 { 439 struct wireless_dev *wdev = dev->ieee80211_ptr; 440 int err, i; 441 bool rejoin = false; 442 443 if (pairwise && !addr) 444 return -EINVAL; 445 446 if (!wdev->wext.keys) { 447 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 448 GFP_KERNEL); 449 if (!wdev->wext.keys) 450 return -ENOMEM; 451 for (i = 0; i < 6; i++) 452 wdev->wext.keys->params[i].key = 453 wdev->wext.keys->data[i]; 454 } 455 456 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 457 wdev->iftype != NL80211_IFTYPE_STATION) 458 return -EOPNOTSUPP; 459 460 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 461 if (!wdev->current_bss) 462 return -ENOLINK; 463 464 if (!rdev->ops->set_default_mgmt_key) 465 return -EOPNOTSUPP; 466 467 if (idx < 4 || idx > 5) 468 return -EINVAL; 469 } else if (idx < 0 || idx > 3) 470 return -EINVAL; 471 472 if (remove) { 473 err = 0; 474 if (wdev->current_bss) { 475 /* 476 * If removing the current TX key, we will need to 477 * join a new IBSS without the privacy bit clear. 478 */ 479 if (idx == wdev->wext.default_key && 480 wdev->iftype == NL80211_IFTYPE_ADHOC) { 481 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 482 rejoin = true; 483 } 484 485 if (!pairwise && addr && 486 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 487 err = -ENOENT; 488 else 489 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, 490 pairwise, addr); 491 } 492 wdev->wext.connect.privacy = false; 493 /* 494 * Applications using wireless extensions expect to be 495 * able to delete keys that don't exist, so allow that. 496 */ 497 if (err == -ENOENT) 498 err = 0; 499 if (!err) { 500 if (!addr) { 501 wdev->wext.keys->params[idx].key_len = 0; 502 wdev->wext.keys->params[idx].cipher = 0; 503 } 504 if (idx == wdev->wext.default_key) 505 wdev->wext.default_key = -1; 506 else if (idx == wdev->wext.default_mgmt_key) 507 wdev->wext.default_mgmt_key = -1; 508 } 509 510 if (!err && rejoin) 511 err = cfg80211_ibss_wext_join(rdev, wdev); 512 513 return err; 514 } 515 516 if (addr) 517 tx_key = false; 518 519 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 520 return -EINVAL; 521 522 err = 0; 523 if (wdev->current_bss) 524 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, 525 pairwise, addr, params); 526 if (err) 527 return err; 528 529 if (!addr) { 530 wdev->wext.keys->params[idx] = *params; 531 memcpy(wdev->wext.keys->data[idx], 532 params->key, params->key_len); 533 wdev->wext.keys->params[idx].key = 534 wdev->wext.keys->data[idx]; 535 } 536 537 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 538 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 539 (tx_key || (!addr && wdev->wext.default_key == -1))) { 540 if (wdev->current_bss) { 541 /* 542 * If we are getting a new TX key from not having 543 * had one before we need to join a new IBSS with 544 * the privacy bit set. 545 */ 546 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 547 wdev->wext.default_key == -1) { 548 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 549 rejoin = true; 550 } 551 err = rdev->ops->set_default_key(&rdev->wiphy, dev, 552 idx, true, true); 553 } 554 if (!err) { 555 wdev->wext.default_key = idx; 556 if (rejoin) 557 err = cfg80211_ibss_wext_join(rdev, wdev); 558 } 559 return err; 560 } 561 562 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 563 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 564 if (wdev->current_bss) 565 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, 566 dev, idx); 567 if (!err) 568 wdev->wext.default_mgmt_key = idx; 569 return err; 570 } 571 572 return 0; 573 } 574 575 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 576 struct net_device *dev, bool pairwise, 577 const u8 *addr, bool remove, bool tx_key, 578 int idx, struct key_params *params) 579 { 580 int err; 581 582 /* devlist mutex needed for possible IBSS re-join */ 583 mutex_lock(&rdev->devlist_mtx); 584 wdev_lock(dev->ieee80211_ptr); 585 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 586 remove, tx_key, idx, params); 587 wdev_unlock(dev->ieee80211_ptr); 588 mutex_unlock(&rdev->devlist_mtx); 589 590 return err; 591 } 592 593 int cfg80211_wext_siwencode(struct net_device *dev, 594 struct iw_request_info *info, 595 struct iw_point *erq, char *keybuf) 596 { 597 struct wireless_dev *wdev = dev->ieee80211_ptr; 598 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 599 int idx, err; 600 bool remove = false; 601 struct key_params params; 602 603 if (wdev->iftype != NL80211_IFTYPE_STATION && 604 wdev->iftype != NL80211_IFTYPE_ADHOC) 605 return -EOPNOTSUPP; 606 607 /* no use -- only MFP (set_default_mgmt_key) is optional */ 608 if (!rdev->ops->del_key || 609 !rdev->ops->add_key || 610 !rdev->ops->set_default_key) 611 return -EOPNOTSUPP; 612 613 idx = erq->flags & IW_ENCODE_INDEX; 614 if (idx == 0) { 615 idx = wdev->wext.default_key; 616 if (idx < 0) 617 idx = 0; 618 } else if (idx < 1 || idx > 4) 619 return -EINVAL; 620 else 621 idx--; 622 623 if (erq->flags & IW_ENCODE_DISABLED) 624 remove = true; 625 else if (erq->length == 0) { 626 /* No key data - just set the default TX key index */ 627 err = 0; 628 wdev_lock(wdev); 629 if (wdev->current_bss) 630 err = rdev->ops->set_default_key(&rdev->wiphy, dev, 631 idx, true, true); 632 if (!err) 633 wdev->wext.default_key = idx; 634 wdev_unlock(wdev); 635 return err; 636 } 637 638 memset(¶ms, 0, sizeof(params)); 639 params.key = keybuf; 640 params.key_len = erq->length; 641 if (erq->length == 5) 642 params.cipher = WLAN_CIPHER_SUITE_WEP40; 643 else if (erq->length == 13) 644 params.cipher = WLAN_CIPHER_SUITE_WEP104; 645 else if (!remove) 646 return -EINVAL; 647 648 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 649 wdev->wext.default_key == -1, 650 idx, ¶ms); 651 } 652 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode); 653 654 int cfg80211_wext_siwencodeext(struct net_device *dev, 655 struct iw_request_info *info, 656 struct iw_point *erq, char *extra) 657 { 658 struct wireless_dev *wdev = dev->ieee80211_ptr; 659 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 660 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 661 const u8 *addr; 662 int idx; 663 bool remove = false; 664 struct key_params params; 665 u32 cipher; 666 667 if (wdev->iftype != NL80211_IFTYPE_STATION && 668 wdev->iftype != NL80211_IFTYPE_ADHOC) 669 return -EOPNOTSUPP; 670 671 /* no use -- only MFP (set_default_mgmt_key) is optional */ 672 if (!rdev->ops->del_key || 673 !rdev->ops->add_key || 674 !rdev->ops->set_default_key) 675 return -EOPNOTSUPP; 676 677 switch (ext->alg) { 678 case IW_ENCODE_ALG_NONE: 679 remove = true; 680 cipher = 0; 681 break; 682 case IW_ENCODE_ALG_WEP: 683 if (ext->key_len == 5) 684 cipher = WLAN_CIPHER_SUITE_WEP40; 685 else if (ext->key_len == 13) 686 cipher = WLAN_CIPHER_SUITE_WEP104; 687 else 688 return -EINVAL; 689 break; 690 case IW_ENCODE_ALG_TKIP: 691 cipher = WLAN_CIPHER_SUITE_TKIP; 692 break; 693 case IW_ENCODE_ALG_CCMP: 694 cipher = WLAN_CIPHER_SUITE_CCMP; 695 break; 696 case IW_ENCODE_ALG_AES_CMAC: 697 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 698 break; 699 default: 700 return -EOPNOTSUPP; 701 } 702 703 if (erq->flags & IW_ENCODE_DISABLED) 704 remove = true; 705 706 idx = erq->flags & IW_ENCODE_INDEX; 707 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 708 if (idx < 4 || idx > 5) { 709 idx = wdev->wext.default_mgmt_key; 710 if (idx < 0) 711 return -EINVAL; 712 } else 713 idx--; 714 } else { 715 if (idx < 1 || idx > 4) { 716 idx = wdev->wext.default_key; 717 if (idx < 0) 718 return -EINVAL; 719 } else 720 idx--; 721 } 722 723 addr = ext->addr.sa_data; 724 if (is_broadcast_ether_addr(addr)) 725 addr = NULL; 726 727 memset(¶ms, 0, sizeof(params)); 728 params.key = ext->key; 729 params.key_len = ext->key_len; 730 params.cipher = cipher; 731 732 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 733 params.seq = ext->rx_seq; 734 params.seq_len = 6; 735 } 736 737 return cfg80211_set_encryption( 738 rdev, dev, 739 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 740 addr, remove, 741 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 742 idx, ¶ms); 743 } 744 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext); 745 746 int cfg80211_wext_giwencode(struct net_device *dev, 747 struct iw_request_info *info, 748 struct iw_point *erq, char *keybuf) 749 { 750 struct wireless_dev *wdev = dev->ieee80211_ptr; 751 int idx; 752 753 if (wdev->iftype != NL80211_IFTYPE_STATION && 754 wdev->iftype != NL80211_IFTYPE_ADHOC) 755 return -EOPNOTSUPP; 756 757 idx = erq->flags & IW_ENCODE_INDEX; 758 if (idx == 0) { 759 idx = wdev->wext.default_key; 760 if (idx < 0) 761 idx = 0; 762 } else if (idx < 1 || idx > 4) 763 return -EINVAL; 764 else 765 idx--; 766 767 erq->flags = idx + 1; 768 769 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 770 erq->flags |= IW_ENCODE_DISABLED; 771 erq->length = 0; 772 return 0; 773 } 774 775 erq->length = min_t(size_t, erq->length, 776 wdev->wext.keys->params[idx].key_len); 777 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 778 erq->flags |= IW_ENCODE_ENABLED; 779 780 return 0; 781 } 782 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode); 783 784 int cfg80211_wext_siwfreq(struct net_device *dev, 785 struct iw_request_info *info, 786 struct iw_freq *wextfreq, char *extra) 787 { 788 struct wireless_dev *wdev = dev->ieee80211_ptr; 789 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 790 int freq, err; 791 792 switch (wdev->iftype) { 793 case NL80211_IFTYPE_STATION: 794 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 795 case NL80211_IFTYPE_ADHOC: 796 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 797 case NL80211_IFTYPE_MONITOR: 798 case NL80211_IFTYPE_WDS: 799 case NL80211_IFTYPE_MESH_POINT: 800 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 801 if (freq < 0) 802 return freq; 803 if (freq == 0) 804 return -EINVAL; 805 wdev_lock(wdev); 806 mutex_lock(&rdev->devlist_mtx); 807 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT); 808 mutex_unlock(&rdev->devlist_mtx); 809 wdev_unlock(wdev); 810 return err; 811 default: 812 return -EOPNOTSUPP; 813 } 814 } 815 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq); 816 817 int cfg80211_wext_giwfreq(struct net_device *dev, 818 struct iw_request_info *info, 819 struct iw_freq *freq, char *extra) 820 { 821 struct wireless_dev *wdev = dev->ieee80211_ptr; 822 823 switch (wdev->iftype) { 824 case NL80211_IFTYPE_STATION: 825 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 826 case NL80211_IFTYPE_ADHOC: 827 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 828 default: 829 if (!wdev->channel) 830 return -EINVAL; 831 freq->m = wdev->channel->center_freq; 832 freq->e = 6; 833 return 0; 834 } 835 } 836 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq); 837 838 int cfg80211_wext_siwtxpower(struct net_device *dev, 839 struct iw_request_info *info, 840 union iwreq_data *data, char *extra) 841 { 842 struct wireless_dev *wdev = dev->ieee80211_ptr; 843 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 844 enum nl80211_tx_power_setting type; 845 int dbm = 0; 846 847 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 848 return -EINVAL; 849 if (data->txpower.flags & IW_TXPOW_RANGE) 850 return -EINVAL; 851 852 if (!rdev->ops->set_tx_power) 853 return -EOPNOTSUPP; 854 855 /* only change when not disabling */ 856 if (!data->txpower.disabled) { 857 rfkill_set_sw_state(rdev->rfkill, false); 858 859 if (data->txpower.fixed) { 860 /* 861 * wext doesn't support negative values, see 862 * below where it's for automatic 863 */ 864 if (data->txpower.value < 0) 865 return -EINVAL; 866 dbm = data->txpower.value; 867 type = NL80211_TX_POWER_FIXED; 868 /* TODO: do regulatory check! */ 869 } else { 870 /* 871 * Automatic power level setting, max being the value 872 * passed in from userland. 873 */ 874 if (data->txpower.value < 0) { 875 type = NL80211_TX_POWER_AUTOMATIC; 876 } else { 877 dbm = data->txpower.value; 878 type = NL80211_TX_POWER_LIMITED; 879 } 880 } 881 } else { 882 rfkill_set_sw_state(rdev->rfkill, true); 883 schedule_work(&rdev->rfkill_sync); 884 return 0; 885 } 886 887 return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm)); 888 } 889 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower); 890 891 int cfg80211_wext_giwtxpower(struct net_device *dev, 892 struct iw_request_info *info, 893 union iwreq_data *data, char *extra) 894 { 895 struct wireless_dev *wdev = dev->ieee80211_ptr; 896 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 897 int err, val; 898 899 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 900 return -EINVAL; 901 if (data->txpower.flags & IW_TXPOW_RANGE) 902 return -EINVAL; 903 904 if (!rdev->ops->get_tx_power) 905 return -EOPNOTSUPP; 906 907 err = rdev->ops->get_tx_power(wdev->wiphy, &val); 908 if (err) 909 return err; 910 911 /* well... oh well */ 912 data->txpower.fixed = 1; 913 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 914 data->txpower.value = val; 915 data->txpower.flags = IW_TXPOW_DBM; 916 917 return 0; 918 } 919 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower); 920 921 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 922 s32 auth_alg) 923 { 924 int nr_alg = 0; 925 926 if (!auth_alg) 927 return -EINVAL; 928 929 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 930 IW_AUTH_ALG_SHARED_KEY | 931 IW_AUTH_ALG_LEAP)) 932 return -EINVAL; 933 934 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 935 nr_alg++; 936 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 937 } 938 939 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 940 nr_alg++; 941 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 942 } 943 944 if (auth_alg & IW_AUTH_ALG_LEAP) { 945 nr_alg++; 946 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 947 } 948 949 if (nr_alg > 1) 950 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 951 952 return 0; 953 } 954 955 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 956 { 957 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 958 IW_AUTH_WPA_VERSION_WPA2| 959 IW_AUTH_WPA_VERSION_DISABLED)) 960 return -EINVAL; 961 962 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 963 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 964 IW_AUTH_WPA_VERSION_WPA2))) 965 return -EINVAL; 966 967 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 968 wdev->wext.connect.crypto.wpa_versions &= 969 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 970 971 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 972 wdev->wext.connect.crypto.wpa_versions |= 973 NL80211_WPA_VERSION_1; 974 975 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 976 wdev->wext.connect.crypto.wpa_versions |= 977 NL80211_WPA_VERSION_2; 978 979 return 0; 980 } 981 982 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 983 { 984 if (cipher & IW_AUTH_CIPHER_WEP40) 985 wdev->wext.connect.crypto.cipher_group = 986 WLAN_CIPHER_SUITE_WEP40; 987 else if (cipher & IW_AUTH_CIPHER_WEP104) 988 wdev->wext.connect.crypto.cipher_group = 989 WLAN_CIPHER_SUITE_WEP104; 990 else if (cipher & IW_AUTH_CIPHER_TKIP) 991 wdev->wext.connect.crypto.cipher_group = 992 WLAN_CIPHER_SUITE_TKIP; 993 else if (cipher & IW_AUTH_CIPHER_CCMP) 994 wdev->wext.connect.crypto.cipher_group = 995 WLAN_CIPHER_SUITE_CCMP; 996 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 997 wdev->wext.connect.crypto.cipher_group = 998 WLAN_CIPHER_SUITE_AES_CMAC; 999 else if (cipher & IW_AUTH_CIPHER_NONE) 1000 wdev->wext.connect.crypto.cipher_group = 0; 1001 else 1002 return -EINVAL; 1003 1004 return 0; 1005 } 1006 1007 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 1008 { 1009 int nr_ciphers = 0; 1010 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 1011 1012 if (cipher & IW_AUTH_CIPHER_WEP40) { 1013 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 1014 nr_ciphers++; 1015 } 1016 1017 if (cipher & IW_AUTH_CIPHER_WEP104) { 1018 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1019 nr_ciphers++; 1020 } 1021 1022 if (cipher & IW_AUTH_CIPHER_TKIP) { 1023 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1024 nr_ciphers++; 1025 } 1026 1027 if (cipher & IW_AUTH_CIPHER_CCMP) { 1028 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1029 nr_ciphers++; 1030 } 1031 1032 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1033 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1034 nr_ciphers++; 1035 } 1036 1037 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1038 1039 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1040 1041 return 0; 1042 } 1043 1044 1045 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1046 { 1047 int nr_akm_suites = 0; 1048 1049 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1050 IW_AUTH_KEY_MGMT_PSK)) 1051 return -EINVAL; 1052 1053 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1054 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1055 WLAN_AKM_SUITE_8021X; 1056 nr_akm_suites++; 1057 } 1058 1059 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1060 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1061 WLAN_AKM_SUITE_PSK; 1062 nr_akm_suites++; 1063 } 1064 1065 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1066 1067 return 0; 1068 } 1069 1070 int cfg80211_wext_siwauth(struct net_device *dev, 1071 struct iw_request_info *info, 1072 struct iw_param *data, char *extra) 1073 { 1074 struct wireless_dev *wdev = dev->ieee80211_ptr; 1075 1076 if (wdev->iftype != NL80211_IFTYPE_STATION) 1077 return -EOPNOTSUPP; 1078 1079 switch (data->flags & IW_AUTH_INDEX) { 1080 case IW_AUTH_PRIVACY_INVOKED: 1081 wdev->wext.connect.privacy = data->value; 1082 return 0; 1083 case IW_AUTH_WPA_VERSION: 1084 return cfg80211_set_wpa_version(wdev, data->value); 1085 case IW_AUTH_CIPHER_GROUP: 1086 return cfg80211_set_cipher_group(wdev, data->value); 1087 case IW_AUTH_KEY_MGMT: 1088 return cfg80211_set_key_mgt(wdev, data->value); 1089 case IW_AUTH_CIPHER_PAIRWISE: 1090 return cfg80211_set_cipher_pairwise(wdev, data->value); 1091 case IW_AUTH_80211_AUTH_ALG: 1092 return cfg80211_set_auth_alg(wdev, data->value); 1093 case IW_AUTH_WPA_ENABLED: 1094 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1095 case IW_AUTH_DROP_UNENCRYPTED: 1096 case IW_AUTH_MFP: 1097 return 0; 1098 default: 1099 return -EOPNOTSUPP; 1100 } 1101 } 1102 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth); 1103 1104 int cfg80211_wext_giwauth(struct net_device *dev, 1105 struct iw_request_info *info, 1106 struct iw_param *data, char *extra) 1107 { 1108 /* XXX: what do we need? */ 1109 1110 return -EOPNOTSUPP; 1111 } 1112 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth); 1113 1114 int cfg80211_wext_siwpower(struct net_device *dev, 1115 struct iw_request_info *info, 1116 struct iw_param *wrq, char *extra) 1117 { 1118 struct wireless_dev *wdev = dev->ieee80211_ptr; 1119 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1120 bool ps = wdev->ps; 1121 int timeout = wdev->ps_timeout; 1122 int err; 1123 1124 if (wdev->iftype != NL80211_IFTYPE_STATION) 1125 return -EINVAL; 1126 1127 if (!rdev->ops->set_power_mgmt) 1128 return -EOPNOTSUPP; 1129 1130 if (wrq->disabled) { 1131 ps = false; 1132 } else { 1133 switch (wrq->flags & IW_POWER_MODE) { 1134 case IW_POWER_ON: /* If not specified */ 1135 case IW_POWER_MODE: /* If set all mask */ 1136 case IW_POWER_ALL_R: /* If explicitely state all */ 1137 ps = true; 1138 break; 1139 default: /* Otherwise we ignore */ 1140 return -EINVAL; 1141 } 1142 1143 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1144 return -EINVAL; 1145 1146 if (wrq->flags & IW_POWER_TIMEOUT) 1147 timeout = wrq->value / 1000; 1148 } 1149 1150 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout); 1151 if (err) 1152 return err; 1153 1154 wdev->ps = ps; 1155 wdev->ps_timeout = timeout; 1156 1157 return 0; 1158 1159 } 1160 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower); 1161 1162 int cfg80211_wext_giwpower(struct net_device *dev, 1163 struct iw_request_info *info, 1164 struct iw_param *wrq, char *extra) 1165 { 1166 struct wireless_dev *wdev = dev->ieee80211_ptr; 1167 1168 wrq->disabled = !wdev->ps; 1169 1170 return 0; 1171 } 1172 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower); 1173 1174 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1175 struct iw_request_info *info, 1176 struct sockaddr *addr, char *extra) 1177 { 1178 struct wireless_dev *wdev = dev->ieee80211_ptr; 1179 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1180 int err; 1181 1182 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1183 return -EINVAL; 1184 1185 if (addr->sa_family != ARPHRD_ETHER) 1186 return -EINVAL; 1187 1188 if (netif_running(dev)) 1189 return -EBUSY; 1190 1191 if (!rdev->ops->set_wds_peer) 1192 return -EOPNOTSUPP; 1193 1194 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data); 1195 if (err) 1196 return err; 1197 1198 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1199 1200 return 0; 1201 } 1202 1203 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1204 struct iw_request_info *info, 1205 struct sockaddr *addr, char *extra) 1206 { 1207 struct wireless_dev *wdev = dev->ieee80211_ptr; 1208 1209 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1210 return -EINVAL; 1211 1212 addr->sa_family = ARPHRD_ETHER; 1213 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1214 1215 return 0; 1216 } 1217 1218 int cfg80211_wext_siwrate(struct net_device *dev, 1219 struct iw_request_info *info, 1220 struct iw_param *rate, char *extra) 1221 { 1222 struct wireless_dev *wdev = dev->ieee80211_ptr; 1223 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1224 struct cfg80211_bitrate_mask mask; 1225 u32 fixed, maxrate; 1226 struct ieee80211_supported_band *sband; 1227 int band, ridx; 1228 bool match = false; 1229 1230 if (!rdev->ops->set_bitrate_mask) 1231 return -EOPNOTSUPP; 1232 1233 memset(&mask, 0, sizeof(mask)); 1234 fixed = 0; 1235 maxrate = (u32)-1; 1236 1237 if (rate->value < 0) { 1238 /* nothing */ 1239 } else if (rate->fixed) { 1240 fixed = rate->value / 100000; 1241 } else { 1242 maxrate = rate->value / 100000; 1243 } 1244 1245 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1246 sband = wdev->wiphy->bands[band]; 1247 if (sband == NULL) 1248 continue; 1249 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1250 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1251 if (fixed == srate->bitrate) { 1252 mask.control[band].legacy = 1 << ridx; 1253 match = true; 1254 break; 1255 } 1256 if (srate->bitrate <= maxrate) { 1257 mask.control[band].legacy |= 1 << ridx; 1258 match = true; 1259 } 1260 } 1261 } 1262 1263 if (!match) 1264 return -EINVAL; 1265 1266 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask); 1267 } 1268 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate); 1269 1270 int cfg80211_wext_giwrate(struct net_device *dev, 1271 struct iw_request_info *info, 1272 struct iw_param *rate, char *extra) 1273 { 1274 struct wireless_dev *wdev = dev->ieee80211_ptr; 1275 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1276 /* we are under RTNL - globally locked - so can use a static struct */ 1277 static struct station_info sinfo; 1278 u8 addr[ETH_ALEN]; 1279 int err; 1280 1281 if (wdev->iftype != NL80211_IFTYPE_STATION) 1282 return -EOPNOTSUPP; 1283 1284 if (!rdev->ops->get_station) 1285 return -EOPNOTSUPP; 1286 1287 err = 0; 1288 wdev_lock(wdev); 1289 if (wdev->current_bss) 1290 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1291 else 1292 err = -EOPNOTSUPP; 1293 wdev_unlock(wdev); 1294 if (err) 1295 return err; 1296 1297 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo); 1298 if (err) 1299 return err; 1300 1301 if (!(sinfo.filled & STATION_INFO_TX_BITRATE)) 1302 return -EOPNOTSUPP; 1303 1304 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1305 1306 return 0; 1307 } 1308 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate); 1309 1310 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1311 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1312 { 1313 struct wireless_dev *wdev = dev->ieee80211_ptr; 1314 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1315 /* we are under RTNL - globally locked - so can use static structs */ 1316 static struct iw_statistics wstats; 1317 static struct station_info sinfo; 1318 u8 bssid[ETH_ALEN]; 1319 1320 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1321 return NULL; 1322 1323 if (!rdev->ops->get_station) 1324 return NULL; 1325 1326 /* Grab BSSID of current BSS, if any */ 1327 wdev_lock(wdev); 1328 if (!wdev->current_bss) { 1329 wdev_unlock(wdev); 1330 return NULL; 1331 } 1332 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1333 wdev_unlock(wdev); 1334 1335 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo)) 1336 return NULL; 1337 1338 memset(&wstats, 0, sizeof(wstats)); 1339 1340 switch (rdev->wiphy.signal_type) { 1341 case CFG80211_SIGNAL_TYPE_MBM: 1342 if (sinfo.filled & STATION_INFO_SIGNAL) { 1343 int sig = sinfo.signal; 1344 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1345 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1346 wstats.qual.updated |= IW_QUAL_DBM; 1347 wstats.qual.level = sig; 1348 if (sig < -110) 1349 sig = -110; 1350 else if (sig > -40) 1351 sig = -40; 1352 wstats.qual.qual = sig + 110; 1353 break; 1354 } 1355 case CFG80211_SIGNAL_TYPE_UNSPEC: 1356 if (sinfo.filled & STATION_INFO_SIGNAL) { 1357 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1358 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1359 wstats.qual.level = sinfo.signal; 1360 wstats.qual.qual = sinfo.signal; 1361 break; 1362 } 1363 default: 1364 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1365 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1366 } 1367 1368 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1369 if (sinfo.filled & STATION_INFO_RX_DROP_MISC) 1370 wstats.discard.misc = sinfo.rx_dropped_misc; 1371 if (sinfo.filled & STATION_INFO_TX_FAILED) 1372 wstats.discard.retries = sinfo.tx_failed; 1373 1374 return &wstats; 1375 } 1376 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats); 1377 1378 int cfg80211_wext_siwap(struct net_device *dev, 1379 struct iw_request_info *info, 1380 struct sockaddr *ap_addr, char *extra) 1381 { 1382 struct wireless_dev *wdev = dev->ieee80211_ptr; 1383 1384 switch (wdev->iftype) { 1385 case NL80211_IFTYPE_ADHOC: 1386 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1387 case NL80211_IFTYPE_STATION: 1388 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1389 case NL80211_IFTYPE_WDS: 1390 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1391 default: 1392 return -EOPNOTSUPP; 1393 } 1394 } 1395 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap); 1396 1397 int cfg80211_wext_giwap(struct net_device *dev, 1398 struct iw_request_info *info, 1399 struct sockaddr *ap_addr, char *extra) 1400 { 1401 struct wireless_dev *wdev = dev->ieee80211_ptr; 1402 1403 switch (wdev->iftype) { 1404 case NL80211_IFTYPE_ADHOC: 1405 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1406 case NL80211_IFTYPE_STATION: 1407 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1408 case NL80211_IFTYPE_WDS: 1409 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1410 default: 1411 return -EOPNOTSUPP; 1412 } 1413 } 1414 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap); 1415 1416 int cfg80211_wext_siwessid(struct net_device *dev, 1417 struct iw_request_info *info, 1418 struct iw_point *data, char *ssid) 1419 { 1420 struct wireless_dev *wdev = dev->ieee80211_ptr; 1421 1422 switch (wdev->iftype) { 1423 case NL80211_IFTYPE_ADHOC: 1424 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1425 case NL80211_IFTYPE_STATION: 1426 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1427 default: 1428 return -EOPNOTSUPP; 1429 } 1430 } 1431 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid); 1432 1433 int cfg80211_wext_giwessid(struct net_device *dev, 1434 struct iw_request_info *info, 1435 struct iw_point *data, char *ssid) 1436 { 1437 struct wireless_dev *wdev = dev->ieee80211_ptr; 1438 1439 data->flags = 0; 1440 data->length = 0; 1441 1442 switch (wdev->iftype) { 1443 case NL80211_IFTYPE_ADHOC: 1444 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1445 case NL80211_IFTYPE_STATION: 1446 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1447 default: 1448 return -EOPNOTSUPP; 1449 } 1450 } 1451 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid); 1452 1453 int cfg80211_wext_siwpmksa(struct net_device *dev, 1454 struct iw_request_info *info, 1455 struct iw_point *data, char *extra) 1456 { 1457 struct wireless_dev *wdev = dev->ieee80211_ptr; 1458 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1459 struct cfg80211_pmksa cfg_pmksa; 1460 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1461 1462 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1463 1464 if (wdev->iftype != NL80211_IFTYPE_STATION) 1465 return -EINVAL; 1466 1467 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1468 cfg_pmksa.pmkid = pmksa->pmkid; 1469 1470 switch (pmksa->cmd) { 1471 case IW_PMKSA_ADD: 1472 if (!rdev->ops->set_pmksa) 1473 return -EOPNOTSUPP; 1474 1475 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1476 1477 case IW_PMKSA_REMOVE: 1478 if (!rdev->ops->del_pmksa) 1479 return -EOPNOTSUPP; 1480 1481 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa); 1482 1483 case IW_PMKSA_FLUSH: 1484 if (!rdev->ops->flush_pmksa) 1485 return -EOPNOTSUPP; 1486 1487 return rdev->ops->flush_pmksa(&rdev->wiphy, dev); 1488 1489 default: 1490 return -EOPNOTSUPP; 1491 } 1492 } 1493 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa); 1494 1495 static const iw_handler cfg80211_handlers[] = { 1496 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1497 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1498 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1499 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1500 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1501 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1502 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1503 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1504 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1505 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1506 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1507 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1508 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1509 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1510 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1511 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1512 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1513 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1514 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1515 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1516 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1517 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1518 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1519 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1520 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1521 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1522 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1523 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1524 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1525 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1526 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1527 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1528 }; 1529 1530 const struct iw_handler_def cfg80211_wext_handler = { 1531 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1532 .standard = cfg80211_handlers, 1533 .get_wireless_stats = cfg80211_wireless_stats, 1534 }; 1535