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 #include "rdev-ops.h" 23 24 int cfg80211_wext_giwname(struct net_device *dev, 25 struct iw_request_info *info, 26 char *name, char *extra) 27 { 28 struct wireless_dev *wdev = dev->ieee80211_ptr; 29 struct ieee80211_supported_band *sband; 30 bool is_ht = false, is_a = false, is_b = false, is_g = false; 31 32 if (!wdev) 33 return -EOPNOTSUPP; 34 35 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ]; 36 if (sband) { 37 is_a = true; 38 is_ht |= sband->ht_cap.ht_supported; 39 } 40 41 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ]; 42 if (sband) { 43 int i; 44 /* Check for mandatory rates */ 45 for (i = 0; i < sband->n_bitrates; i++) { 46 if (sband->bitrates[i].bitrate == 10) 47 is_b = true; 48 if (sband->bitrates[i].bitrate == 60) 49 is_g = true; 50 } 51 is_ht |= sband->ht_cap.ht_supported; 52 } 53 54 strcpy(name, "IEEE 802.11"); 55 if (is_a) 56 strcat(name, "a"); 57 if (is_b) 58 strcat(name, "b"); 59 if (is_g) 60 strcat(name, "g"); 61 if (is_ht) 62 strcat(name, "n"); 63 64 return 0; 65 } 66 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname); 67 68 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 69 u32 *mode, char *extra) 70 { 71 struct wireless_dev *wdev = dev->ieee80211_ptr; 72 struct cfg80211_registered_device *rdev; 73 struct vif_params vifparams; 74 enum nl80211_iftype type; 75 int ret; 76 77 rdev = wiphy_to_dev(wdev->wiphy); 78 79 switch (*mode) { 80 case IW_MODE_INFRA: 81 type = NL80211_IFTYPE_STATION; 82 break; 83 case IW_MODE_ADHOC: 84 type = NL80211_IFTYPE_ADHOC; 85 break; 86 case IW_MODE_REPEAT: 87 type = NL80211_IFTYPE_WDS; 88 break; 89 case IW_MODE_MONITOR: 90 type = NL80211_IFTYPE_MONITOR; 91 break; 92 default: 93 return -EINVAL; 94 } 95 96 if (type == wdev->iftype) 97 return 0; 98 99 memset(&vifparams, 0, sizeof(vifparams)); 100 101 cfg80211_lock_rdev(rdev); 102 ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams); 103 cfg80211_unlock_rdev(rdev); 104 105 return ret; 106 } 107 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode); 108 109 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 110 u32 *mode, char *extra) 111 { 112 struct wireless_dev *wdev = dev->ieee80211_ptr; 113 114 if (!wdev) 115 return -EOPNOTSUPP; 116 117 switch (wdev->iftype) { 118 case NL80211_IFTYPE_AP: 119 *mode = IW_MODE_MASTER; 120 break; 121 case NL80211_IFTYPE_STATION: 122 *mode = IW_MODE_INFRA; 123 break; 124 case NL80211_IFTYPE_ADHOC: 125 *mode = IW_MODE_ADHOC; 126 break; 127 case NL80211_IFTYPE_MONITOR: 128 *mode = IW_MODE_MONITOR; 129 break; 130 case NL80211_IFTYPE_WDS: 131 *mode = IW_MODE_REPEAT; 132 break; 133 case NL80211_IFTYPE_AP_VLAN: 134 *mode = IW_MODE_SECOND; /* FIXME */ 135 break; 136 default: 137 *mode = IW_MODE_AUTO; 138 break; 139 } 140 return 0; 141 } 142 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode); 143 144 145 int cfg80211_wext_giwrange(struct net_device *dev, 146 struct iw_request_info *info, 147 struct iw_point *data, char *extra) 148 { 149 struct wireless_dev *wdev = dev->ieee80211_ptr; 150 struct iw_range *range = (struct iw_range *) extra; 151 enum ieee80211_band band; 152 int i, c = 0; 153 154 if (!wdev) 155 return -EOPNOTSUPP; 156 157 data->length = sizeof(struct iw_range); 158 memset(range, 0, sizeof(struct iw_range)); 159 160 range->we_version_compiled = WIRELESS_EXT; 161 range->we_version_source = 21; 162 range->retry_capa = IW_RETRY_LIMIT; 163 range->retry_flags = IW_RETRY_LIMIT; 164 range->min_retry = 0; 165 range->max_retry = 255; 166 range->min_rts = 0; 167 range->max_rts = 2347; 168 range->min_frag = 256; 169 range->max_frag = 2346; 170 171 range->max_encoding_tokens = 4; 172 173 range->max_qual.updated = IW_QUAL_NOISE_INVALID; 174 175 switch (wdev->wiphy->signal_type) { 176 case CFG80211_SIGNAL_TYPE_NONE: 177 break; 178 case CFG80211_SIGNAL_TYPE_MBM: 179 range->max_qual.level = (u8)-110; 180 range->max_qual.qual = 70; 181 range->avg_qual.qual = 35; 182 range->max_qual.updated |= IW_QUAL_DBM; 183 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 184 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 185 break; 186 case CFG80211_SIGNAL_TYPE_UNSPEC: 187 range->max_qual.level = 100; 188 range->max_qual.qual = 100; 189 range->avg_qual.qual = 50; 190 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 191 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 192 break; 193 } 194 195 range->avg_qual.level = range->max_qual.level / 2; 196 range->avg_qual.noise = range->max_qual.noise / 2; 197 range->avg_qual.updated = range->max_qual.updated; 198 199 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { 200 switch (wdev->wiphy->cipher_suites[i]) { 201 case WLAN_CIPHER_SUITE_TKIP: 202 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | 203 IW_ENC_CAPA_WPA); 204 break; 205 206 case WLAN_CIPHER_SUITE_CCMP: 207 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | 208 IW_ENC_CAPA_WPA2); 209 break; 210 211 case WLAN_CIPHER_SUITE_WEP40: 212 range->encoding_size[range->num_encoding_sizes++] = 213 WLAN_KEY_LEN_WEP40; 214 break; 215 216 case WLAN_CIPHER_SUITE_WEP104: 217 range->encoding_size[range->num_encoding_sizes++] = 218 WLAN_KEY_LEN_WEP104; 219 break; 220 } 221 } 222 223 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { 224 struct ieee80211_supported_band *sband; 225 226 sband = wdev->wiphy->bands[band]; 227 228 if (!sband) 229 continue; 230 231 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { 232 struct ieee80211_channel *chan = &sband->channels[i]; 233 234 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { 235 range->freq[c].i = 236 ieee80211_frequency_to_channel( 237 chan->center_freq); 238 range->freq[c].m = chan->center_freq; 239 range->freq[c].e = 6; 240 c++; 241 } 242 } 243 } 244 range->num_channels = c; 245 range->num_frequency = c; 246 247 IW_EVENT_CAPA_SET_KERNEL(range->event_capa); 248 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); 249 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); 250 251 if (wdev->wiphy->max_scan_ssids > 0) 252 range->scan_capa |= IW_SCAN_CAPA_ESSID; 253 254 return 0; 255 } 256 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange); 257 258 259 /** 260 * cfg80211_wext_freq - get wext frequency for non-"auto" 261 * @wiphy: the wiphy 262 * @freq: the wext freq encoding 263 * 264 * Returns a frequency, or a negative error code, or 0 for auto. 265 */ 266 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq) 267 { 268 /* 269 * Parse frequency - return 0 for auto and 270 * -EINVAL for impossible things. 271 */ 272 if (freq->e == 0) { 273 enum ieee80211_band band = IEEE80211_BAND_2GHZ; 274 if (freq->m < 0) 275 return 0; 276 if (freq->m > 14) 277 band = IEEE80211_BAND_5GHZ; 278 return ieee80211_channel_to_frequency(freq->m, band); 279 } else { 280 int i, div = 1000000; 281 for (i = 0; i < freq->e; i++) 282 div /= 10; 283 if (div <= 0) 284 return -EINVAL; 285 return freq->m / div; 286 } 287 } 288 289 int cfg80211_wext_siwrts(struct net_device *dev, 290 struct iw_request_info *info, 291 struct iw_param *rts, char *extra) 292 { 293 struct wireless_dev *wdev = dev->ieee80211_ptr; 294 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 295 u32 orts = wdev->wiphy->rts_threshold; 296 int err; 297 298 if (rts->disabled || !rts->fixed) 299 wdev->wiphy->rts_threshold = (u32) -1; 300 else if (rts->value < 0) 301 return -EINVAL; 302 else 303 wdev->wiphy->rts_threshold = rts->value; 304 305 err = rdev_set_wiphy_params(rdev, 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_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD); 346 if (err) 347 wdev->wiphy->frag_threshold = ofrag; 348 349 return err; 350 } 351 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag); 352 353 int cfg80211_wext_giwfrag(struct net_device *dev, 354 struct iw_request_info *info, 355 struct iw_param *frag, char *extra) 356 { 357 struct wireless_dev *wdev = dev->ieee80211_ptr; 358 359 frag->value = wdev->wiphy->frag_threshold; 360 frag->disabled = frag->value == (u32) -1; 361 frag->fixed = 1; 362 363 return 0; 364 } 365 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag); 366 367 static int cfg80211_wext_siwretry(struct net_device *dev, 368 struct iw_request_info *info, 369 struct iw_param *retry, char *extra) 370 { 371 struct wireless_dev *wdev = dev->ieee80211_ptr; 372 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 373 u32 changed = 0; 374 u8 olong = wdev->wiphy->retry_long; 375 u8 oshort = wdev->wiphy->retry_short; 376 int err; 377 378 if (retry->disabled || 379 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 380 return -EINVAL; 381 382 if (retry->flags & IW_RETRY_LONG) { 383 wdev->wiphy->retry_long = retry->value; 384 changed |= WIPHY_PARAM_RETRY_LONG; 385 } else if (retry->flags & IW_RETRY_SHORT) { 386 wdev->wiphy->retry_short = retry->value; 387 changed |= WIPHY_PARAM_RETRY_SHORT; 388 } else { 389 wdev->wiphy->retry_short = retry->value; 390 wdev->wiphy->retry_long = retry->value; 391 changed |= WIPHY_PARAM_RETRY_LONG; 392 changed |= WIPHY_PARAM_RETRY_SHORT; 393 } 394 395 if (!changed) 396 return 0; 397 398 err = rdev_set_wiphy_params(rdev, changed); 399 if (err) { 400 wdev->wiphy->retry_short = oshort; 401 wdev->wiphy->retry_long = olong; 402 } 403 404 return err; 405 } 406 407 int cfg80211_wext_giwretry(struct net_device *dev, 408 struct iw_request_info *info, 409 struct iw_param *retry, char *extra) 410 { 411 struct wireless_dev *wdev = dev->ieee80211_ptr; 412 413 retry->disabled = 0; 414 415 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 416 /* 417 * First return short value, iwconfig will ask long value 418 * later if needed 419 */ 420 retry->flags |= IW_RETRY_LIMIT; 421 retry->value = wdev->wiphy->retry_short; 422 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short) 423 retry->flags |= IW_RETRY_LONG; 424 425 return 0; 426 } 427 428 if (retry->flags & IW_RETRY_LONG) { 429 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 430 retry->value = wdev->wiphy->retry_long; 431 } 432 433 return 0; 434 } 435 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); 436 437 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 438 struct net_device *dev, bool pairwise, 439 const u8 *addr, bool remove, bool tx_key, 440 int idx, struct key_params *params) 441 { 442 struct wireless_dev *wdev = dev->ieee80211_ptr; 443 int err, i; 444 bool rejoin = false; 445 446 if (pairwise && !addr) 447 return -EINVAL; 448 449 if (!wdev->wext.keys) { 450 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 451 GFP_KERNEL); 452 if (!wdev->wext.keys) 453 return -ENOMEM; 454 for (i = 0; i < 6; i++) 455 wdev->wext.keys->params[i].key = 456 wdev->wext.keys->data[i]; 457 } 458 459 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 460 wdev->iftype != NL80211_IFTYPE_STATION) 461 return -EOPNOTSUPP; 462 463 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 464 if (!wdev->current_bss) 465 return -ENOLINK; 466 467 if (!rdev->ops->set_default_mgmt_key) 468 return -EOPNOTSUPP; 469 470 if (idx < 4 || idx > 5) 471 return -EINVAL; 472 } else if (idx < 0 || idx > 3) 473 return -EINVAL; 474 475 if (remove) { 476 err = 0; 477 if (wdev->current_bss) { 478 /* 479 * If removing the current TX key, we will need to 480 * join a new IBSS without the privacy bit clear. 481 */ 482 if (idx == wdev->wext.default_key && 483 wdev->iftype == NL80211_IFTYPE_ADHOC) { 484 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 485 rejoin = true; 486 } 487 488 if (!pairwise && addr && 489 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 490 err = -ENOENT; 491 else 492 err = rdev_del_key(rdev, dev, idx, pairwise, 493 addr); 494 } 495 wdev->wext.connect.privacy = false; 496 /* 497 * Applications using wireless extensions expect to be 498 * able to delete keys that don't exist, so allow that. 499 */ 500 if (err == -ENOENT) 501 err = 0; 502 if (!err) { 503 if (!addr) { 504 wdev->wext.keys->params[idx].key_len = 0; 505 wdev->wext.keys->params[idx].cipher = 0; 506 } 507 if (idx == wdev->wext.default_key) 508 wdev->wext.default_key = -1; 509 else if (idx == wdev->wext.default_mgmt_key) 510 wdev->wext.default_mgmt_key = -1; 511 } 512 513 if (!err && rejoin) 514 err = cfg80211_ibss_wext_join(rdev, wdev); 515 516 return err; 517 } 518 519 if (addr) 520 tx_key = false; 521 522 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 523 return -EINVAL; 524 525 err = 0; 526 if (wdev->current_bss) 527 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params); 528 if (err) 529 return err; 530 531 if (!addr) { 532 wdev->wext.keys->params[idx] = *params; 533 memcpy(wdev->wext.keys->data[idx], 534 params->key, params->key_len); 535 wdev->wext.keys->params[idx].key = 536 wdev->wext.keys->data[idx]; 537 } 538 539 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 540 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 541 (tx_key || (!addr && wdev->wext.default_key == -1))) { 542 if (wdev->current_bss) { 543 /* 544 * If we are getting a new TX key from not having 545 * had one before we need to join a new IBSS with 546 * the privacy bit set. 547 */ 548 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 549 wdev->wext.default_key == -1) { 550 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 551 rejoin = true; 552 } 553 err = rdev_set_default_key(rdev, dev, idx, true, true); 554 } 555 if (!err) { 556 wdev->wext.default_key = idx; 557 if (rejoin) 558 err = cfg80211_ibss_wext_join(rdev, wdev); 559 } 560 return err; 561 } 562 563 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 564 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 565 if (wdev->current_bss) 566 err = rdev_set_default_mgmt_key(rdev, 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 static 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_set_default_key(rdev, dev, idx, true, 631 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 } 652 653 static int cfg80211_wext_siwencodeext(struct net_device *dev, 654 struct iw_request_info *info, 655 struct iw_point *erq, char *extra) 656 { 657 struct wireless_dev *wdev = dev->ieee80211_ptr; 658 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 659 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 660 const u8 *addr; 661 int idx; 662 bool remove = false; 663 struct key_params params; 664 u32 cipher; 665 666 if (wdev->iftype != NL80211_IFTYPE_STATION && 667 wdev->iftype != NL80211_IFTYPE_ADHOC) 668 return -EOPNOTSUPP; 669 670 /* no use -- only MFP (set_default_mgmt_key) is optional */ 671 if (!rdev->ops->del_key || 672 !rdev->ops->add_key || 673 !rdev->ops->set_default_key) 674 return -EOPNOTSUPP; 675 676 switch (ext->alg) { 677 case IW_ENCODE_ALG_NONE: 678 remove = true; 679 cipher = 0; 680 break; 681 case IW_ENCODE_ALG_WEP: 682 if (ext->key_len == 5) 683 cipher = WLAN_CIPHER_SUITE_WEP40; 684 else if (ext->key_len == 13) 685 cipher = WLAN_CIPHER_SUITE_WEP104; 686 else 687 return -EINVAL; 688 break; 689 case IW_ENCODE_ALG_TKIP: 690 cipher = WLAN_CIPHER_SUITE_TKIP; 691 break; 692 case IW_ENCODE_ALG_CCMP: 693 cipher = WLAN_CIPHER_SUITE_CCMP; 694 break; 695 case IW_ENCODE_ALG_AES_CMAC: 696 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 697 break; 698 default: 699 return -EOPNOTSUPP; 700 } 701 702 if (erq->flags & IW_ENCODE_DISABLED) 703 remove = true; 704 705 idx = erq->flags & IW_ENCODE_INDEX; 706 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 707 if (idx < 4 || idx > 5) { 708 idx = wdev->wext.default_mgmt_key; 709 if (idx < 0) 710 return -EINVAL; 711 } else 712 idx--; 713 } else { 714 if (idx < 1 || idx > 4) { 715 idx = wdev->wext.default_key; 716 if (idx < 0) 717 return -EINVAL; 718 } else 719 idx--; 720 } 721 722 addr = ext->addr.sa_data; 723 if (is_broadcast_ether_addr(addr)) 724 addr = NULL; 725 726 memset(¶ms, 0, sizeof(params)); 727 params.key = ext->key; 728 params.key_len = ext->key_len; 729 params.cipher = cipher; 730 731 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 732 params.seq = ext->rx_seq; 733 params.seq_len = 6; 734 } 735 736 return cfg80211_set_encryption( 737 rdev, dev, 738 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 739 addr, remove, 740 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 741 idx, ¶ms); 742 } 743 744 static int cfg80211_wext_giwencode(struct net_device *dev, 745 struct iw_request_info *info, 746 struct iw_point *erq, char *keybuf) 747 { 748 struct wireless_dev *wdev = dev->ieee80211_ptr; 749 int idx; 750 751 if (wdev->iftype != NL80211_IFTYPE_STATION && 752 wdev->iftype != NL80211_IFTYPE_ADHOC) 753 return -EOPNOTSUPP; 754 755 idx = erq->flags & IW_ENCODE_INDEX; 756 if (idx == 0) { 757 idx = wdev->wext.default_key; 758 if (idx < 0) 759 idx = 0; 760 } else if (idx < 1 || idx > 4) 761 return -EINVAL; 762 else 763 idx--; 764 765 erq->flags = idx + 1; 766 767 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 768 erq->flags |= IW_ENCODE_DISABLED; 769 erq->length = 0; 770 return 0; 771 } 772 773 erq->length = min_t(size_t, erq->length, 774 wdev->wext.keys->params[idx].key_len); 775 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 776 erq->flags |= IW_ENCODE_ENABLED; 777 778 return 0; 779 } 780 781 static int cfg80211_wext_siwfreq(struct net_device *dev, 782 struct iw_request_info *info, 783 struct iw_freq *wextfreq, char *extra) 784 { 785 struct wireless_dev *wdev = dev->ieee80211_ptr; 786 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 787 struct cfg80211_chan_def chandef = { 788 .width = NL80211_CHAN_WIDTH_20_NOHT, 789 }; 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 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 799 if (freq < 0) 800 return freq; 801 if (freq == 0) 802 return -EINVAL; 803 chandef.center_freq1 = freq; 804 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 805 if (!chandef.chan) 806 return -EINVAL; 807 mutex_lock(&rdev->devlist_mtx); 808 err = cfg80211_set_monitor_channel(rdev, &chandef); 809 mutex_unlock(&rdev->devlist_mtx); 810 return err; 811 case NL80211_IFTYPE_MESH_POINT: 812 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 813 if (freq < 0) 814 return freq; 815 if (freq == 0) 816 return -EINVAL; 817 chandef.center_freq1 = freq; 818 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 819 if (!chandef.chan) 820 return -EINVAL; 821 mutex_lock(&rdev->devlist_mtx); 822 err = cfg80211_set_mesh_channel(rdev, wdev, &chandef); 823 mutex_unlock(&rdev->devlist_mtx); 824 return err; 825 default: 826 return -EOPNOTSUPP; 827 } 828 } 829 830 static int cfg80211_wext_giwfreq(struct net_device *dev, 831 struct iw_request_info *info, 832 struct iw_freq *freq, char *extra) 833 { 834 struct wireless_dev *wdev = dev->ieee80211_ptr; 835 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 836 struct cfg80211_chan_def chandef; 837 int ret; 838 839 switch (wdev->iftype) { 840 case NL80211_IFTYPE_STATION: 841 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 842 case NL80211_IFTYPE_ADHOC: 843 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 844 case NL80211_IFTYPE_MONITOR: 845 if (!rdev->ops->get_channel) 846 return -EINVAL; 847 848 ret = rdev_get_channel(rdev, wdev, &chandef); 849 if (ret) 850 return ret; 851 freq->m = chandef.chan->center_freq; 852 freq->e = 6; 853 return 0; 854 default: 855 return -EINVAL; 856 } 857 } 858 859 static int cfg80211_wext_siwtxpower(struct net_device *dev, 860 struct iw_request_info *info, 861 union iwreq_data *data, char *extra) 862 { 863 struct wireless_dev *wdev = dev->ieee80211_ptr; 864 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 865 enum nl80211_tx_power_setting type; 866 int dbm = 0; 867 868 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 869 return -EINVAL; 870 if (data->txpower.flags & IW_TXPOW_RANGE) 871 return -EINVAL; 872 873 if (!rdev->ops->set_tx_power) 874 return -EOPNOTSUPP; 875 876 /* only change when not disabling */ 877 if (!data->txpower.disabled) { 878 rfkill_set_sw_state(rdev->rfkill, false); 879 880 if (data->txpower.fixed) { 881 /* 882 * wext doesn't support negative values, see 883 * below where it's for automatic 884 */ 885 if (data->txpower.value < 0) 886 return -EINVAL; 887 dbm = data->txpower.value; 888 type = NL80211_TX_POWER_FIXED; 889 /* TODO: do regulatory check! */ 890 } else { 891 /* 892 * Automatic power level setting, max being the value 893 * passed in from userland. 894 */ 895 if (data->txpower.value < 0) { 896 type = NL80211_TX_POWER_AUTOMATIC; 897 } else { 898 dbm = data->txpower.value; 899 type = NL80211_TX_POWER_LIMITED; 900 } 901 } 902 } else { 903 rfkill_set_sw_state(rdev->rfkill, true); 904 schedule_work(&rdev->rfkill_sync); 905 return 0; 906 } 907 908 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); 909 } 910 911 static int cfg80211_wext_giwtxpower(struct net_device *dev, 912 struct iw_request_info *info, 913 union iwreq_data *data, char *extra) 914 { 915 struct wireless_dev *wdev = dev->ieee80211_ptr; 916 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 917 int err, val; 918 919 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 920 return -EINVAL; 921 if (data->txpower.flags & IW_TXPOW_RANGE) 922 return -EINVAL; 923 924 if (!rdev->ops->get_tx_power) 925 return -EOPNOTSUPP; 926 927 err = rdev_get_tx_power(rdev, wdev, &val); 928 if (err) 929 return err; 930 931 /* well... oh well */ 932 data->txpower.fixed = 1; 933 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 934 data->txpower.value = val; 935 data->txpower.flags = IW_TXPOW_DBM; 936 937 return 0; 938 } 939 940 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 941 s32 auth_alg) 942 { 943 int nr_alg = 0; 944 945 if (!auth_alg) 946 return -EINVAL; 947 948 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 949 IW_AUTH_ALG_SHARED_KEY | 950 IW_AUTH_ALG_LEAP)) 951 return -EINVAL; 952 953 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 954 nr_alg++; 955 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 956 } 957 958 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 959 nr_alg++; 960 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 961 } 962 963 if (auth_alg & IW_AUTH_ALG_LEAP) { 964 nr_alg++; 965 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 966 } 967 968 if (nr_alg > 1) 969 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 970 971 return 0; 972 } 973 974 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 975 { 976 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 977 IW_AUTH_WPA_VERSION_WPA2| 978 IW_AUTH_WPA_VERSION_DISABLED)) 979 return -EINVAL; 980 981 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 982 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 983 IW_AUTH_WPA_VERSION_WPA2))) 984 return -EINVAL; 985 986 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 987 wdev->wext.connect.crypto.wpa_versions &= 988 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 989 990 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 991 wdev->wext.connect.crypto.wpa_versions |= 992 NL80211_WPA_VERSION_1; 993 994 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 995 wdev->wext.connect.crypto.wpa_versions |= 996 NL80211_WPA_VERSION_2; 997 998 return 0; 999 } 1000 1001 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 1002 { 1003 if (cipher & IW_AUTH_CIPHER_WEP40) 1004 wdev->wext.connect.crypto.cipher_group = 1005 WLAN_CIPHER_SUITE_WEP40; 1006 else if (cipher & IW_AUTH_CIPHER_WEP104) 1007 wdev->wext.connect.crypto.cipher_group = 1008 WLAN_CIPHER_SUITE_WEP104; 1009 else if (cipher & IW_AUTH_CIPHER_TKIP) 1010 wdev->wext.connect.crypto.cipher_group = 1011 WLAN_CIPHER_SUITE_TKIP; 1012 else if (cipher & IW_AUTH_CIPHER_CCMP) 1013 wdev->wext.connect.crypto.cipher_group = 1014 WLAN_CIPHER_SUITE_CCMP; 1015 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 1016 wdev->wext.connect.crypto.cipher_group = 1017 WLAN_CIPHER_SUITE_AES_CMAC; 1018 else if (cipher & IW_AUTH_CIPHER_NONE) 1019 wdev->wext.connect.crypto.cipher_group = 0; 1020 else 1021 return -EINVAL; 1022 1023 return 0; 1024 } 1025 1026 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 1027 { 1028 int nr_ciphers = 0; 1029 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 1030 1031 if (cipher & IW_AUTH_CIPHER_WEP40) { 1032 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 1033 nr_ciphers++; 1034 } 1035 1036 if (cipher & IW_AUTH_CIPHER_WEP104) { 1037 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1038 nr_ciphers++; 1039 } 1040 1041 if (cipher & IW_AUTH_CIPHER_TKIP) { 1042 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1043 nr_ciphers++; 1044 } 1045 1046 if (cipher & IW_AUTH_CIPHER_CCMP) { 1047 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1048 nr_ciphers++; 1049 } 1050 1051 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1052 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1053 nr_ciphers++; 1054 } 1055 1056 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1057 1058 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1059 1060 return 0; 1061 } 1062 1063 1064 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1065 { 1066 int nr_akm_suites = 0; 1067 1068 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1069 IW_AUTH_KEY_MGMT_PSK)) 1070 return -EINVAL; 1071 1072 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1073 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1074 WLAN_AKM_SUITE_8021X; 1075 nr_akm_suites++; 1076 } 1077 1078 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1079 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1080 WLAN_AKM_SUITE_PSK; 1081 nr_akm_suites++; 1082 } 1083 1084 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1085 1086 return 0; 1087 } 1088 1089 static int cfg80211_wext_siwauth(struct net_device *dev, 1090 struct iw_request_info *info, 1091 struct iw_param *data, char *extra) 1092 { 1093 struct wireless_dev *wdev = dev->ieee80211_ptr; 1094 1095 if (wdev->iftype != NL80211_IFTYPE_STATION) 1096 return -EOPNOTSUPP; 1097 1098 switch (data->flags & IW_AUTH_INDEX) { 1099 case IW_AUTH_PRIVACY_INVOKED: 1100 wdev->wext.connect.privacy = data->value; 1101 return 0; 1102 case IW_AUTH_WPA_VERSION: 1103 return cfg80211_set_wpa_version(wdev, data->value); 1104 case IW_AUTH_CIPHER_GROUP: 1105 return cfg80211_set_cipher_group(wdev, data->value); 1106 case IW_AUTH_KEY_MGMT: 1107 return cfg80211_set_key_mgt(wdev, data->value); 1108 case IW_AUTH_CIPHER_PAIRWISE: 1109 return cfg80211_set_cipher_pairwise(wdev, data->value); 1110 case IW_AUTH_80211_AUTH_ALG: 1111 return cfg80211_set_auth_alg(wdev, data->value); 1112 case IW_AUTH_WPA_ENABLED: 1113 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1114 case IW_AUTH_DROP_UNENCRYPTED: 1115 case IW_AUTH_MFP: 1116 return 0; 1117 default: 1118 return -EOPNOTSUPP; 1119 } 1120 } 1121 1122 static int cfg80211_wext_giwauth(struct net_device *dev, 1123 struct iw_request_info *info, 1124 struct iw_param *data, char *extra) 1125 { 1126 /* XXX: what do we need? */ 1127 1128 return -EOPNOTSUPP; 1129 } 1130 1131 static int cfg80211_wext_siwpower(struct net_device *dev, 1132 struct iw_request_info *info, 1133 struct iw_param *wrq, char *extra) 1134 { 1135 struct wireless_dev *wdev = dev->ieee80211_ptr; 1136 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1137 bool ps = wdev->ps; 1138 int timeout = wdev->ps_timeout; 1139 int err; 1140 1141 if (wdev->iftype != NL80211_IFTYPE_STATION) 1142 return -EINVAL; 1143 1144 if (!rdev->ops->set_power_mgmt) 1145 return -EOPNOTSUPP; 1146 1147 if (wrq->disabled) { 1148 ps = false; 1149 } else { 1150 switch (wrq->flags & IW_POWER_MODE) { 1151 case IW_POWER_ON: /* If not specified */ 1152 case IW_POWER_MODE: /* If set all mask */ 1153 case IW_POWER_ALL_R: /* If explicitely state all */ 1154 ps = true; 1155 break; 1156 default: /* Otherwise we ignore */ 1157 return -EINVAL; 1158 } 1159 1160 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1161 return -EINVAL; 1162 1163 if (wrq->flags & IW_POWER_TIMEOUT) 1164 timeout = wrq->value / 1000; 1165 } 1166 1167 err = rdev_set_power_mgmt(rdev, dev, ps, timeout); 1168 if (err) 1169 return err; 1170 1171 wdev->ps = ps; 1172 wdev->ps_timeout = timeout; 1173 1174 return 0; 1175 1176 } 1177 1178 static int cfg80211_wext_giwpower(struct net_device *dev, 1179 struct iw_request_info *info, 1180 struct iw_param *wrq, char *extra) 1181 { 1182 struct wireless_dev *wdev = dev->ieee80211_ptr; 1183 1184 wrq->disabled = !wdev->ps; 1185 1186 return 0; 1187 } 1188 1189 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1190 struct iw_request_info *info, 1191 struct sockaddr *addr, char *extra) 1192 { 1193 struct wireless_dev *wdev = dev->ieee80211_ptr; 1194 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1195 int err; 1196 1197 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1198 return -EINVAL; 1199 1200 if (addr->sa_family != ARPHRD_ETHER) 1201 return -EINVAL; 1202 1203 if (netif_running(dev)) 1204 return -EBUSY; 1205 1206 if (!rdev->ops->set_wds_peer) 1207 return -EOPNOTSUPP; 1208 1209 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data); 1210 if (err) 1211 return err; 1212 1213 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1214 1215 return 0; 1216 } 1217 1218 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1219 struct iw_request_info *info, 1220 struct sockaddr *addr, char *extra) 1221 { 1222 struct wireless_dev *wdev = dev->ieee80211_ptr; 1223 1224 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1225 return -EINVAL; 1226 1227 addr->sa_family = ARPHRD_ETHER; 1228 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1229 1230 return 0; 1231 } 1232 1233 static int cfg80211_wext_siwrate(struct net_device *dev, 1234 struct iw_request_info *info, 1235 struct iw_param *rate, char *extra) 1236 { 1237 struct wireless_dev *wdev = dev->ieee80211_ptr; 1238 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1239 struct cfg80211_bitrate_mask mask; 1240 u32 fixed, maxrate; 1241 struct ieee80211_supported_band *sband; 1242 int band, ridx; 1243 bool match = false; 1244 1245 if (!rdev->ops->set_bitrate_mask) 1246 return -EOPNOTSUPP; 1247 1248 memset(&mask, 0, sizeof(mask)); 1249 fixed = 0; 1250 maxrate = (u32)-1; 1251 1252 if (rate->value < 0) { 1253 /* nothing */ 1254 } else if (rate->fixed) { 1255 fixed = rate->value / 100000; 1256 } else { 1257 maxrate = rate->value / 100000; 1258 } 1259 1260 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1261 sband = wdev->wiphy->bands[band]; 1262 if (sband == NULL) 1263 continue; 1264 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1265 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1266 if (fixed == srate->bitrate) { 1267 mask.control[band].legacy = 1 << ridx; 1268 match = true; 1269 break; 1270 } 1271 if (srate->bitrate <= maxrate) { 1272 mask.control[band].legacy |= 1 << ridx; 1273 match = true; 1274 } 1275 } 1276 } 1277 1278 if (!match) 1279 return -EINVAL; 1280 1281 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); 1282 } 1283 1284 static int cfg80211_wext_giwrate(struct net_device *dev, 1285 struct iw_request_info *info, 1286 struct iw_param *rate, char *extra) 1287 { 1288 struct wireless_dev *wdev = dev->ieee80211_ptr; 1289 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1290 /* we are under RTNL - globally locked - so can use a static struct */ 1291 static struct station_info sinfo; 1292 u8 addr[ETH_ALEN]; 1293 int err; 1294 1295 if (wdev->iftype != NL80211_IFTYPE_STATION) 1296 return -EOPNOTSUPP; 1297 1298 if (!rdev->ops->get_station) 1299 return -EOPNOTSUPP; 1300 1301 err = 0; 1302 wdev_lock(wdev); 1303 if (wdev->current_bss) 1304 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1305 else 1306 err = -EOPNOTSUPP; 1307 wdev_unlock(wdev); 1308 if (err) 1309 return err; 1310 1311 err = rdev_get_station(rdev, dev, addr, &sinfo); 1312 if (err) 1313 return err; 1314 1315 if (!(sinfo.filled & STATION_INFO_TX_BITRATE)) 1316 return -EOPNOTSUPP; 1317 1318 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1319 1320 return 0; 1321 } 1322 1323 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1324 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1325 { 1326 struct wireless_dev *wdev = dev->ieee80211_ptr; 1327 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1328 /* we are under RTNL - globally locked - so can use static structs */ 1329 static struct iw_statistics wstats; 1330 static struct station_info sinfo; 1331 u8 bssid[ETH_ALEN]; 1332 1333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1334 return NULL; 1335 1336 if (!rdev->ops->get_station) 1337 return NULL; 1338 1339 /* Grab BSSID of current BSS, if any */ 1340 wdev_lock(wdev); 1341 if (!wdev->current_bss) { 1342 wdev_unlock(wdev); 1343 return NULL; 1344 } 1345 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1346 wdev_unlock(wdev); 1347 1348 if (rdev_get_station(rdev, dev, bssid, &sinfo)) 1349 return NULL; 1350 1351 memset(&wstats, 0, sizeof(wstats)); 1352 1353 switch (rdev->wiphy.signal_type) { 1354 case CFG80211_SIGNAL_TYPE_MBM: 1355 if (sinfo.filled & STATION_INFO_SIGNAL) { 1356 int sig = sinfo.signal; 1357 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1358 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1359 wstats.qual.updated |= IW_QUAL_DBM; 1360 wstats.qual.level = sig; 1361 if (sig < -110) 1362 sig = -110; 1363 else if (sig > -40) 1364 sig = -40; 1365 wstats.qual.qual = sig + 110; 1366 break; 1367 } 1368 case CFG80211_SIGNAL_TYPE_UNSPEC: 1369 if (sinfo.filled & STATION_INFO_SIGNAL) { 1370 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1371 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1372 wstats.qual.level = sinfo.signal; 1373 wstats.qual.qual = sinfo.signal; 1374 break; 1375 } 1376 default: 1377 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1378 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1379 } 1380 1381 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1382 if (sinfo.filled & STATION_INFO_RX_DROP_MISC) 1383 wstats.discard.misc = sinfo.rx_dropped_misc; 1384 if (sinfo.filled & STATION_INFO_TX_FAILED) 1385 wstats.discard.retries = sinfo.tx_failed; 1386 1387 return &wstats; 1388 } 1389 1390 static int cfg80211_wext_siwap(struct net_device *dev, 1391 struct iw_request_info *info, 1392 struct sockaddr *ap_addr, char *extra) 1393 { 1394 struct wireless_dev *wdev = dev->ieee80211_ptr; 1395 1396 switch (wdev->iftype) { 1397 case NL80211_IFTYPE_ADHOC: 1398 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1399 case NL80211_IFTYPE_STATION: 1400 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1401 case NL80211_IFTYPE_WDS: 1402 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1403 default: 1404 return -EOPNOTSUPP; 1405 } 1406 } 1407 1408 static int cfg80211_wext_giwap(struct net_device *dev, 1409 struct iw_request_info *info, 1410 struct sockaddr *ap_addr, char *extra) 1411 { 1412 struct wireless_dev *wdev = dev->ieee80211_ptr; 1413 1414 switch (wdev->iftype) { 1415 case NL80211_IFTYPE_ADHOC: 1416 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1417 case NL80211_IFTYPE_STATION: 1418 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1419 case NL80211_IFTYPE_WDS: 1420 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1421 default: 1422 return -EOPNOTSUPP; 1423 } 1424 } 1425 1426 static int cfg80211_wext_siwessid(struct net_device *dev, 1427 struct iw_request_info *info, 1428 struct iw_point *data, char *ssid) 1429 { 1430 struct wireless_dev *wdev = dev->ieee80211_ptr; 1431 1432 switch (wdev->iftype) { 1433 case NL80211_IFTYPE_ADHOC: 1434 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1435 case NL80211_IFTYPE_STATION: 1436 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1437 default: 1438 return -EOPNOTSUPP; 1439 } 1440 } 1441 1442 static int cfg80211_wext_giwessid(struct net_device *dev, 1443 struct iw_request_info *info, 1444 struct iw_point *data, char *ssid) 1445 { 1446 struct wireless_dev *wdev = dev->ieee80211_ptr; 1447 1448 data->flags = 0; 1449 data->length = 0; 1450 1451 switch (wdev->iftype) { 1452 case NL80211_IFTYPE_ADHOC: 1453 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1454 case NL80211_IFTYPE_STATION: 1455 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1456 default: 1457 return -EOPNOTSUPP; 1458 } 1459 } 1460 1461 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1462 struct iw_request_info *info, 1463 struct iw_point *data, char *extra) 1464 { 1465 struct wireless_dev *wdev = dev->ieee80211_ptr; 1466 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1467 struct cfg80211_pmksa cfg_pmksa; 1468 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1469 1470 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1471 1472 if (wdev->iftype != NL80211_IFTYPE_STATION) 1473 return -EINVAL; 1474 1475 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1476 cfg_pmksa.pmkid = pmksa->pmkid; 1477 1478 switch (pmksa->cmd) { 1479 case IW_PMKSA_ADD: 1480 if (!rdev->ops->set_pmksa) 1481 return -EOPNOTSUPP; 1482 1483 return rdev_set_pmksa(rdev, dev, &cfg_pmksa); 1484 1485 case IW_PMKSA_REMOVE: 1486 if (!rdev->ops->del_pmksa) 1487 return -EOPNOTSUPP; 1488 1489 return rdev_del_pmksa(rdev, dev, &cfg_pmksa); 1490 1491 case IW_PMKSA_FLUSH: 1492 if (!rdev->ops->flush_pmksa) 1493 return -EOPNOTSUPP; 1494 1495 return rdev_flush_pmksa(rdev, dev); 1496 1497 default: 1498 return -EOPNOTSUPP; 1499 } 1500 } 1501 1502 static const iw_handler cfg80211_handlers[] = { 1503 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1504 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1505 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1506 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1507 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1508 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1509 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1510 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1511 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1512 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1513 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1514 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1515 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1516 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1517 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1518 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1519 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1520 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1521 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1522 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1523 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1524 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1525 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1526 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1527 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1528 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1529 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1530 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1531 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1532 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1533 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1534 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1535 }; 1536 1537 const struct iw_handler_def cfg80211_wext_handler = { 1538 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1539 .standard = cfg80211_handlers, 1540 .get_wireless_stats = cfg80211_wireless_stats, 1541 }; 1542