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 76 rdev = wiphy_to_dev(wdev->wiphy); 77 78 switch (*mode) { 79 case IW_MODE_INFRA: 80 type = NL80211_IFTYPE_STATION; 81 break; 82 case IW_MODE_ADHOC: 83 type = NL80211_IFTYPE_ADHOC; 84 break; 85 case IW_MODE_REPEAT: 86 type = NL80211_IFTYPE_WDS; 87 break; 88 case IW_MODE_MONITOR: 89 type = NL80211_IFTYPE_MONITOR; 90 break; 91 default: 92 return -EINVAL; 93 } 94 95 if (type == wdev->iftype) 96 return 0; 97 98 memset(&vifparams, 0, sizeof(vifparams)); 99 100 return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams); 101 } 102 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode); 103 104 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 105 u32 *mode, char *extra) 106 { 107 struct wireless_dev *wdev = dev->ieee80211_ptr; 108 109 if (!wdev) 110 return -EOPNOTSUPP; 111 112 switch (wdev->iftype) { 113 case NL80211_IFTYPE_AP: 114 *mode = IW_MODE_MASTER; 115 break; 116 case NL80211_IFTYPE_STATION: 117 *mode = IW_MODE_INFRA; 118 break; 119 case NL80211_IFTYPE_ADHOC: 120 *mode = IW_MODE_ADHOC; 121 break; 122 case NL80211_IFTYPE_MONITOR: 123 *mode = IW_MODE_MONITOR; 124 break; 125 case NL80211_IFTYPE_WDS: 126 *mode = IW_MODE_REPEAT; 127 break; 128 case NL80211_IFTYPE_AP_VLAN: 129 *mode = IW_MODE_SECOND; /* FIXME */ 130 break; 131 default: 132 *mode = IW_MODE_AUTO; 133 break; 134 } 135 return 0; 136 } 137 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode); 138 139 140 int cfg80211_wext_giwrange(struct net_device *dev, 141 struct iw_request_info *info, 142 struct iw_point *data, char *extra) 143 { 144 struct wireless_dev *wdev = dev->ieee80211_ptr; 145 struct iw_range *range = (struct iw_range *) extra; 146 enum ieee80211_band band; 147 int i, c = 0; 148 149 if (!wdev) 150 return -EOPNOTSUPP; 151 152 data->length = sizeof(struct iw_range); 153 memset(range, 0, sizeof(struct iw_range)); 154 155 range->we_version_compiled = WIRELESS_EXT; 156 range->we_version_source = 21; 157 range->retry_capa = IW_RETRY_LIMIT; 158 range->retry_flags = IW_RETRY_LIMIT; 159 range->min_retry = 0; 160 range->max_retry = 255; 161 range->min_rts = 0; 162 range->max_rts = 2347; 163 range->min_frag = 256; 164 range->max_frag = 2346; 165 166 range->max_encoding_tokens = 4; 167 168 range->max_qual.updated = IW_QUAL_NOISE_INVALID; 169 170 switch (wdev->wiphy->signal_type) { 171 case CFG80211_SIGNAL_TYPE_NONE: 172 break; 173 case CFG80211_SIGNAL_TYPE_MBM: 174 range->max_qual.level = (u8)-110; 175 range->max_qual.qual = 70; 176 range->avg_qual.qual = 35; 177 range->max_qual.updated |= IW_QUAL_DBM; 178 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 179 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 180 break; 181 case CFG80211_SIGNAL_TYPE_UNSPEC: 182 range->max_qual.level = 100; 183 range->max_qual.qual = 100; 184 range->avg_qual.qual = 50; 185 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 186 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 187 break; 188 } 189 190 range->avg_qual.level = range->max_qual.level / 2; 191 range->avg_qual.noise = range->max_qual.noise / 2; 192 range->avg_qual.updated = range->max_qual.updated; 193 194 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { 195 switch (wdev->wiphy->cipher_suites[i]) { 196 case WLAN_CIPHER_SUITE_TKIP: 197 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | 198 IW_ENC_CAPA_WPA); 199 break; 200 201 case WLAN_CIPHER_SUITE_CCMP: 202 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | 203 IW_ENC_CAPA_WPA2); 204 break; 205 206 case WLAN_CIPHER_SUITE_WEP40: 207 range->encoding_size[range->num_encoding_sizes++] = 208 WLAN_KEY_LEN_WEP40; 209 break; 210 211 case WLAN_CIPHER_SUITE_WEP104: 212 range->encoding_size[range->num_encoding_sizes++] = 213 WLAN_KEY_LEN_WEP104; 214 break; 215 } 216 } 217 218 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { 219 struct ieee80211_supported_band *sband; 220 221 sband = wdev->wiphy->bands[band]; 222 223 if (!sband) 224 continue; 225 226 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { 227 struct ieee80211_channel *chan = &sband->channels[i]; 228 229 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { 230 range->freq[c].i = 231 ieee80211_frequency_to_channel( 232 chan->center_freq); 233 range->freq[c].m = chan->center_freq; 234 range->freq[c].e = 6; 235 c++; 236 } 237 } 238 } 239 range->num_channels = c; 240 range->num_frequency = c; 241 242 IW_EVENT_CAPA_SET_KERNEL(range->event_capa); 243 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); 244 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); 245 246 if (wdev->wiphy->max_scan_ssids > 0) 247 range->scan_capa |= IW_SCAN_CAPA_ESSID; 248 249 return 0; 250 } 251 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange); 252 253 254 /** 255 * cfg80211_wext_freq - get wext frequency for non-"auto" 256 * @wiphy: the wiphy 257 * @freq: the wext freq encoding 258 * 259 * Returns a frequency, or a negative error code, or 0 for auto. 260 */ 261 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq) 262 { 263 /* 264 * Parse frequency - return 0 for auto and 265 * -EINVAL for impossible things. 266 */ 267 if (freq->e == 0) { 268 enum ieee80211_band band = IEEE80211_BAND_2GHZ; 269 if (freq->m < 0) 270 return 0; 271 if (freq->m > 14) 272 band = IEEE80211_BAND_5GHZ; 273 return ieee80211_channel_to_frequency(freq->m, band); 274 } else { 275 int i, div = 1000000; 276 for (i = 0; i < freq->e; i++) 277 div /= 10; 278 if (div <= 0) 279 return -EINVAL; 280 return freq->m / div; 281 } 282 } 283 284 int cfg80211_wext_siwrts(struct net_device *dev, 285 struct iw_request_info *info, 286 struct iw_param *rts, char *extra) 287 { 288 struct wireless_dev *wdev = dev->ieee80211_ptr; 289 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 290 u32 orts = wdev->wiphy->rts_threshold; 291 int err; 292 293 if (rts->disabled || !rts->fixed) 294 wdev->wiphy->rts_threshold = (u32) -1; 295 else if (rts->value < 0) 296 return -EINVAL; 297 else 298 wdev->wiphy->rts_threshold = rts->value; 299 300 err = rdev_set_wiphy_params(rdev, 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_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD); 341 if (err) 342 wdev->wiphy->frag_threshold = ofrag; 343 344 return err; 345 } 346 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag); 347 348 int cfg80211_wext_giwfrag(struct net_device *dev, 349 struct iw_request_info *info, 350 struct iw_param *frag, char *extra) 351 { 352 struct wireless_dev *wdev = dev->ieee80211_ptr; 353 354 frag->value = wdev->wiphy->frag_threshold; 355 frag->disabled = frag->value == (u32) -1; 356 frag->fixed = 1; 357 358 return 0; 359 } 360 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag); 361 362 static int cfg80211_wext_siwretry(struct net_device *dev, 363 struct iw_request_info *info, 364 struct iw_param *retry, char *extra) 365 { 366 struct wireless_dev *wdev = dev->ieee80211_ptr; 367 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 368 u32 changed = 0; 369 u8 olong = wdev->wiphy->retry_long; 370 u8 oshort = wdev->wiphy->retry_short; 371 int err; 372 373 if (retry->disabled || retry->value < 1 || retry->value > 255 || 374 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 375 return -EINVAL; 376 377 if (retry->flags & IW_RETRY_LONG) { 378 wdev->wiphy->retry_long = retry->value; 379 changed |= WIPHY_PARAM_RETRY_LONG; 380 } else if (retry->flags & IW_RETRY_SHORT) { 381 wdev->wiphy->retry_short = retry->value; 382 changed |= WIPHY_PARAM_RETRY_SHORT; 383 } else { 384 wdev->wiphy->retry_short = retry->value; 385 wdev->wiphy->retry_long = retry->value; 386 changed |= WIPHY_PARAM_RETRY_LONG; 387 changed |= WIPHY_PARAM_RETRY_SHORT; 388 } 389 390 if (!changed) 391 return 0; 392 393 err = rdev_set_wiphy_params(rdev, changed); 394 if (err) { 395 wdev->wiphy->retry_short = oshort; 396 wdev->wiphy->retry_long = olong; 397 } 398 399 return err; 400 } 401 402 int cfg80211_wext_giwretry(struct net_device *dev, 403 struct iw_request_info *info, 404 struct iw_param *retry, char *extra) 405 { 406 struct wireless_dev *wdev = dev->ieee80211_ptr; 407 408 retry->disabled = 0; 409 410 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 411 /* 412 * First return short value, iwconfig will ask long value 413 * later if needed 414 */ 415 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT; 416 retry->value = wdev->wiphy->retry_short; 417 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short) 418 retry->flags |= IW_RETRY_LONG; 419 420 return 0; 421 } 422 423 if (retry->flags & IW_RETRY_LONG) { 424 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 425 retry->value = wdev->wiphy->retry_long; 426 } 427 428 return 0; 429 } 430 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); 431 432 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 433 struct net_device *dev, bool pairwise, 434 const u8 *addr, bool remove, bool tx_key, 435 int idx, struct key_params *params) 436 { 437 struct wireless_dev *wdev = dev->ieee80211_ptr; 438 int err, i; 439 bool rejoin = false; 440 441 if (pairwise && !addr) 442 return -EINVAL; 443 444 if (!wdev->wext.keys) { 445 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 446 GFP_KERNEL); 447 if (!wdev->wext.keys) 448 return -ENOMEM; 449 for (i = 0; i < 6; i++) 450 wdev->wext.keys->params[i].key = 451 wdev->wext.keys->data[i]; 452 } 453 454 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 455 wdev->iftype != NL80211_IFTYPE_STATION) 456 return -EOPNOTSUPP; 457 458 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 459 if (!wdev->current_bss) 460 return -ENOLINK; 461 462 if (!rdev->ops->set_default_mgmt_key) 463 return -EOPNOTSUPP; 464 465 if (idx < 4 || idx > 5) 466 return -EINVAL; 467 } else if (idx < 0 || idx > 3) 468 return -EINVAL; 469 470 if (remove) { 471 err = 0; 472 if (wdev->current_bss) { 473 /* 474 * If removing the current TX key, we will need to 475 * join a new IBSS without the privacy bit clear. 476 */ 477 if (idx == wdev->wext.default_key && 478 wdev->iftype == NL80211_IFTYPE_ADHOC) { 479 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 480 rejoin = true; 481 } 482 483 if (!pairwise && addr && 484 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 485 err = -ENOENT; 486 else 487 err = rdev_del_key(rdev, dev, idx, pairwise, 488 addr); 489 } 490 wdev->wext.connect.privacy = false; 491 /* 492 * Applications using wireless extensions expect to be 493 * able to delete keys that don't exist, so allow that. 494 */ 495 if (err == -ENOENT) 496 err = 0; 497 if (!err) { 498 if (!addr) { 499 wdev->wext.keys->params[idx].key_len = 0; 500 wdev->wext.keys->params[idx].cipher = 0; 501 } 502 if (idx == wdev->wext.default_key) 503 wdev->wext.default_key = -1; 504 else if (idx == wdev->wext.default_mgmt_key) 505 wdev->wext.default_mgmt_key = -1; 506 } 507 508 if (!err && rejoin) 509 err = cfg80211_ibss_wext_join(rdev, wdev); 510 511 return err; 512 } 513 514 if (addr) 515 tx_key = false; 516 517 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 518 return -EINVAL; 519 520 err = 0; 521 if (wdev->current_bss) 522 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params); 523 if (err) 524 return err; 525 526 if (!addr) { 527 wdev->wext.keys->params[idx] = *params; 528 memcpy(wdev->wext.keys->data[idx], 529 params->key, params->key_len); 530 wdev->wext.keys->params[idx].key = 531 wdev->wext.keys->data[idx]; 532 } 533 534 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 535 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 536 (tx_key || (!addr && wdev->wext.default_key == -1))) { 537 if (wdev->current_bss) { 538 /* 539 * If we are getting a new TX key from not having 540 * had one before we need to join a new IBSS with 541 * the privacy bit set. 542 */ 543 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 544 wdev->wext.default_key == -1) { 545 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 546 rejoin = true; 547 } 548 err = rdev_set_default_key(rdev, dev, idx, true, true); 549 } 550 if (!err) { 551 wdev->wext.default_key = idx; 552 if (rejoin) 553 err = cfg80211_ibss_wext_join(rdev, wdev); 554 } 555 return err; 556 } 557 558 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 559 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 560 if (wdev->current_bss) 561 err = rdev_set_default_mgmt_key(rdev, dev, idx); 562 if (!err) 563 wdev->wext.default_mgmt_key = idx; 564 return err; 565 } 566 567 return 0; 568 } 569 570 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 571 struct net_device *dev, bool pairwise, 572 const u8 *addr, bool remove, bool tx_key, 573 int idx, struct key_params *params) 574 { 575 int err; 576 577 wdev_lock(dev->ieee80211_ptr); 578 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 579 remove, tx_key, idx, params); 580 wdev_unlock(dev->ieee80211_ptr); 581 582 return err; 583 } 584 585 static int cfg80211_wext_siwencode(struct net_device *dev, 586 struct iw_request_info *info, 587 struct iw_point *erq, char *keybuf) 588 { 589 struct wireless_dev *wdev = dev->ieee80211_ptr; 590 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 591 int idx, err; 592 bool remove = false; 593 struct key_params params; 594 595 if (wdev->iftype != NL80211_IFTYPE_STATION && 596 wdev->iftype != NL80211_IFTYPE_ADHOC) 597 return -EOPNOTSUPP; 598 599 /* no use -- only MFP (set_default_mgmt_key) is optional */ 600 if (!rdev->ops->del_key || 601 !rdev->ops->add_key || 602 !rdev->ops->set_default_key) 603 return -EOPNOTSUPP; 604 605 idx = erq->flags & IW_ENCODE_INDEX; 606 if (idx == 0) { 607 idx = wdev->wext.default_key; 608 if (idx < 0) 609 idx = 0; 610 } else if (idx < 1 || idx > 4) 611 return -EINVAL; 612 else 613 idx--; 614 615 if (erq->flags & IW_ENCODE_DISABLED) 616 remove = true; 617 else if (erq->length == 0) { 618 /* No key data - just set the default TX key index */ 619 err = 0; 620 wdev_lock(wdev); 621 if (wdev->current_bss) 622 err = rdev_set_default_key(rdev, dev, idx, true, 623 true); 624 if (!err) 625 wdev->wext.default_key = idx; 626 wdev_unlock(wdev); 627 return err; 628 } 629 630 memset(¶ms, 0, sizeof(params)); 631 params.key = keybuf; 632 params.key_len = erq->length; 633 if (erq->length == 5) 634 params.cipher = WLAN_CIPHER_SUITE_WEP40; 635 else if (erq->length == 13) 636 params.cipher = WLAN_CIPHER_SUITE_WEP104; 637 else if (!remove) 638 return -EINVAL; 639 640 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 641 wdev->wext.default_key == -1, 642 idx, ¶ms); 643 } 644 645 static int cfg80211_wext_siwencodeext(struct net_device *dev, 646 struct iw_request_info *info, 647 struct iw_point *erq, char *extra) 648 { 649 struct wireless_dev *wdev = dev->ieee80211_ptr; 650 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 651 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 652 const u8 *addr; 653 int idx; 654 bool remove = false; 655 struct key_params params; 656 u32 cipher; 657 658 if (wdev->iftype != NL80211_IFTYPE_STATION && 659 wdev->iftype != NL80211_IFTYPE_ADHOC) 660 return -EOPNOTSUPP; 661 662 /* no use -- only MFP (set_default_mgmt_key) is optional */ 663 if (!rdev->ops->del_key || 664 !rdev->ops->add_key || 665 !rdev->ops->set_default_key) 666 return -EOPNOTSUPP; 667 668 switch (ext->alg) { 669 case IW_ENCODE_ALG_NONE: 670 remove = true; 671 cipher = 0; 672 break; 673 case IW_ENCODE_ALG_WEP: 674 if (ext->key_len == 5) 675 cipher = WLAN_CIPHER_SUITE_WEP40; 676 else if (ext->key_len == 13) 677 cipher = WLAN_CIPHER_SUITE_WEP104; 678 else 679 return -EINVAL; 680 break; 681 case IW_ENCODE_ALG_TKIP: 682 cipher = WLAN_CIPHER_SUITE_TKIP; 683 break; 684 case IW_ENCODE_ALG_CCMP: 685 cipher = WLAN_CIPHER_SUITE_CCMP; 686 break; 687 case IW_ENCODE_ALG_AES_CMAC: 688 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 689 break; 690 default: 691 return -EOPNOTSUPP; 692 } 693 694 if (erq->flags & IW_ENCODE_DISABLED) 695 remove = true; 696 697 idx = erq->flags & IW_ENCODE_INDEX; 698 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 699 if (idx < 4 || idx > 5) { 700 idx = wdev->wext.default_mgmt_key; 701 if (idx < 0) 702 return -EINVAL; 703 } else 704 idx--; 705 } else { 706 if (idx < 1 || idx > 4) { 707 idx = wdev->wext.default_key; 708 if (idx < 0) 709 return -EINVAL; 710 } else 711 idx--; 712 } 713 714 addr = ext->addr.sa_data; 715 if (is_broadcast_ether_addr(addr)) 716 addr = NULL; 717 718 memset(¶ms, 0, sizeof(params)); 719 params.key = ext->key; 720 params.key_len = ext->key_len; 721 params.cipher = cipher; 722 723 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 724 params.seq = ext->rx_seq; 725 params.seq_len = 6; 726 } 727 728 return cfg80211_set_encryption( 729 rdev, dev, 730 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 731 addr, remove, 732 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 733 idx, ¶ms); 734 } 735 736 static int cfg80211_wext_giwencode(struct net_device *dev, 737 struct iw_request_info *info, 738 struct iw_point *erq, char *keybuf) 739 { 740 struct wireless_dev *wdev = dev->ieee80211_ptr; 741 int idx; 742 743 if (wdev->iftype != NL80211_IFTYPE_STATION && 744 wdev->iftype != NL80211_IFTYPE_ADHOC) 745 return -EOPNOTSUPP; 746 747 idx = erq->flags & IW_ENCODE_INDEX; 748 if (idx == 0) { 749 idx = wdev->wext.default_key; 750 if (idx < 0) 751 idx = 0; 752 } else if (idx < 1 || idx > 4) 753 return -EINVAL; 754 else 755 idx--; 756 757 erq->flags = idx + 1; 758 759 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 760 erq->flags |= IW_ENCODE_DISABLED; 761 erq->length = 0; 762 return 0; 763 } 764 765 erq->length = min_t(size_t, erq->length, 766 wdev->wext.keys->params[idx].key_len); 767 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 768 erq->flags |= IW_ENCODE_ENABLED; 769 770 return 0; 771 } 772 773 static int cfg80211_wext_siwfreq(struct net_device *dev, 774 struct iw_request_info *info, 775 struct iw_freq *wextfreq, char *extra) 776 { 777 struct wireless_dev *wdev = dev->ieee80211_ptr; 778 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 779 struct cfg80211_chan_def chandef = { 780 .width = NL80211_CHAN_WIDTH_20_NOHT, 781 }; 782 int freq; 783 784 switch (wdev->iftype) { 785 case NL80211_IFTYPE_STATION: 786 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 787 case NL80211_IFTYPE_ADHOC: 788 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 789 case NL80211_IFTYPE_MONITOR: 790 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 791 if (freq < 0) 792 return freq; 793 if (freq == 0) 794 return -EINVAL; 795 chandef.center_freq1 = freq; 796 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 797 if (!chandef.chan) 798 return -EINVAL; 799 return cfg80211_set_monitor_channel(rdev, &chandef); 800 case NL80211_IFTYPE_MESH_POINT: 801 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); 802 if (freq < 0) 803 return freq; 804 if (freq == 0) 805 return -EINVAL; 806 chandef.center_freq1 = freq; 807 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 808 if (!chandef.chan) 809 return -EINVAL; 810 return cfg80211_set_mesh_channel(rdev, wdev, &chandef); 811 default: 812 return -EOPNOTSUPP; 813 } 814 } 815 816 static int cfg80211_wext_giwfreq(struct net_device *dev, 817 struct iw_request_info *info, 818 struct iw_freq *freq, char *extra) 819 { 820 struct wireless_dev *wdev = dev->ieee80211_ptr; 821 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 822 struct cfg80211_chan_def chandef; 823 int ret; 824 825 switch (wdev->iftype) { 826 case NL80211_IFTYPE_STATION: 827 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 828 case NL80211_IFTYPE_ADHOC: 829 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 830 case NL80211_IFTYPE_MONITOR: 831 if (!rdev->ops->get_channel) 832 return -EINVAL; 833 834 ret = rdev_get_channel(rdev, wdev, &chandef); 835 if (ret) 836 return ret; 837 freq->m = chandef.chan->center_freq; 838 freq->e = 6; 839 return 0; 840 default: 841 return -EINVAL; 842 } 843 } 844 845 static int cfg80211_wext_siwtxpower(struct net_device *dev, 846 struct iw_request_info *info, 847 union iwreq_data *data, char *extra) 848 { 849 struct wireless_dev *wdev = dev->ieee80211_ptr; 850 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 851 enum nl80211_tx_power_setting type; 852 int dbm = 0; 853 854 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 855 return -EINVAL; 856 if (data->txpower.flags & IW_TXPOW_RANGE) 857 return -EINVAL; 858 859 if (!rdev->ops->set_tx_power) 860 return -EOPNOTSUPP; 861 862 /* only change when not disabling */ 863 if (!data->txpower.disabled) { 864 rfkill_set_sw_state(rdev->rfkill, false); 865 866 if (data->txpower.fixed) { 867 /* 868 * wext doesn't support negative values, see 869 * below where it's for automatic 870 */ 871 if (data->txpower.value < 0) 872 return -EINVAL; 873 dbm = data->txpower.value; 874 type = NL80211_TX_POWER_FIXED; 875 /* TODO: do regulatory check! */ 876 } else { 877 /* 878 * Automatic power level setting, max being the value 879 * passed in from userland. 880 */ 881 if (data->txpower.value < 0) { 882 type = NL80211_TX_POWER_AUTOMATIC; 883 } else { 884 dbm = data->txpower.value; 885 type = NL80211_TX_POWER_LIMITED; 886 } 887 } 888 } else { 889 rfkill_set_sw_state(rdev->rfkill, true); 890 schedule_work(&rdev->rfkill_sync); 891 return 0; 892 } 893 894 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); 895 } 896 897 static int cfg80211_wext_giwtxpower(struct net_device *dev, 898 struct iw_request_info *info, 899 union iwreq_data *data, char *extra) 900 { 901 struct wireless_dev *wdev = dev->ieee80211_ptr; 902 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 903 int err, val; 904 905 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 906 return -EINVAL; 907 if (data->txpower.flags & IW_TXPOW_RANGE) 908 return -EINVAL; 909 910 if (!rdev->ops->get_tx_power) 911 return -EOPNOTSUPP; 912 913 err = rdev_get_tx_power(rdev, wdev, &val); 914 if (err) 915 return err; 916 917 /* well... oh well */ 918 data->txpower.fixed = 1; 919 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 920 data->txpower.value = val; 921 data->txpower.flags = IW_TXPOW_DBM; 922 923 return 0; 924 } 925 926 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 927 s32 auth_alg) 928 { 929 int nr_alg = 0; 930 931 if (!auth_alg) 932 return -EINVAL; 933 934 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 935 IW_AUTH_ALG_SHARED_KEY | 936 IW_AUTH_ALG_LEAP)) 937 return -EINVAL; 938 939 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 940 nr_alg++; 941 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 942 } 943 944 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 945 nr_alg++; 946 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 947 } 948 949 if (auth_alg & IW_AUTH_ALG_LEAP) { 950 nr_alg++; 951 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 952 } 953 954 if (nr_alg > 1) 955 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 956 957 return 0; 958 } 959 960 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 961 { 962 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 963 IW_AUTH_WPA_VERSION_WPA2| 964 IW_AUTH_WPA_VERSION_DISABLED)) 965 return -EINVAL; 966 967 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 968 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 969 IW_AUTH_WPA_VERSION_WPA2))) 970 return -EINVAL; 971 972 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 973 wdev->wext.connect.crypto.wpa_versions &= 974 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 975 976 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 977 wdev->wext.connect.crypto.wpa_versions |= 978 NL80211_WPA_VERSION_1; 979 980 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 981 wdev->wext.connect.crypto.wpa_versions |= 982 NL80211_WPA_VERSION_2; 983 984 return 0; 985 } 986 987 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 988 { 989 if (cipher & IW_AUTH_CIPHER_WEP40) 990 wdev->wext.connect.crypto.cipher_group = 991 WLAN_CIPHER_SUITE_WEP40; 992 else if (cipher & IW_AUTH_CIPHER_WEP104) 993 wdev->wext.connect.crypto.cipher_group = 994 WLAN_CIPHER_SUITE_WEP104; 995 else if (cipher & IW_AUTH_CIPHER_TKIP) 996 wdev->wext.connect.crypto.cipher_group = 997 WLAN_CIPHER_SUITE_TKIP; 998 else if (cipher & IW_AUTH_CIPHER_CCMP) 999 wdev->wext.connect.crypto.cipher_group = 1000 WLAN_CIPHER_SUITE_CCMP; 1001 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 1002 wdev->wext.connect.crypto.cipher_group = 1003 WLAN_CIPHER_SUITE_AES_CMAC; 1004 else if (cipher & IW_AUTH_CIPHER_NONE) 1005 wdev->wext.connect.crypto.cipher_group = 0; 1006 else 1007 return -EINVAL; 1008 1009 return 0; 1010 } 1011 1012 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 1013 { 1014 int nr_ciphers = 0; 1015 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 1016 1017 if (cipher & IW_AUTH_CIPHER_WEP40) { 1018 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 1019 nr_ciphers++; 1020 } 1021 1022 if (cipher & IW_AUTH_CIPHER_WEP104) { 1023 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1024 nr_ciphers++; 1025 } 1026 1027 if (cipher & IW_AUTH_CIPHER_TKIP) { 1028 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1029 nr_ciphers++; 1030 } 1031 1032 if (cipher & IW_AUTH_CIPHER_CCMP) { 1033 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1034 nr_ciphers++; 1035 } 1036 1037 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1038 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1039 nr_ciphers++; 1040 } 1041 1042 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1043 1044 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1045 1046 return 0; 1047 } 1048 1049 1050 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1051 { 1052 int nr_akm_suites = 0; 1053 1054 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1055 IW_AUTH_KEY_MGMT_PSK)) 1056 return -EINVAL; 1057 1058 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1059 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1060 WLAN_AKM_SUITE_8021X; 1061 nr_akm_suites++; 1062 } 1063 1064 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1065 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1066 WLAN_AKM_SUITE_PSK; 1067 nr_akm_suites++; 1068 } 1069 1070 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1071 1072 return 0; 1073 } 1074 1075 static int cfg80211_wext_siwauth(struct net_device *dev, 1076 struct iw_request_info *info, 1077 struct iw_param *data, char *extra) 1078 { 1079 struct wireless_dev *wdev = dev->ieee80211_ptr; 1080 1081 if (wdev->iftype != NL80211_IFTYPE_STATION) 1082 return -EOPNOTSUPP; 1083 1084 switch (data->flags & IW_AUTH_INDEX) { 1085 case IW_AUTH_PRIVACY_INVOKED: 1086 wdev->wext.connect.privacy = data->value; 1087 return 0; 1088 case IW_AUTH_WPA_VERSION: 1089 return cfg80211_set_wpa_version(wdev, data->value); 1090 case IW_AUTH_CIPHER_GROUP: 1091 return cfg80211_set_cipher_group(wdev, data->value); 1092 case IW_AUTH_KEY_MGMT: 1093 return cfg80211_set_key_mgt(wdev, data->value); 1094 case IW_AUTH_CIPHER_PAIRWISE: 1095 return cfg80211_set_cipher_pairwise(wdev, data->value); 1096 case IW_AUTH_80211_AUTH_ALG: 1097 return cfg80211_set_auth_alg(wdev, data->value); 1098 case IW_AUTH_WPA_ENABLED: 1099 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1100 case IW_AUTH_DROP_UNENCRYPTED: 1101 case IW_AUTH_MFP: 1102 return 0; 1103 default: 1104 return -EOPNOTSUPP; 1105 } 1106 } 1107 1108 static int cfg80211_wext_giwauth(struct net_device *dev, 1109 struct iw_request_info *info, 1110 struct iw_param *data, char *extra) 1111 { 1112 /* XXX: what do we need? */ 1113 1114 return -EOPNOTSUPP; 1115 } 1116 1117 static int cfg80211_wext_siwpower(struct net_device *dev, 1118 struct iw_request_info *info, 1119 struct iw_param *wrq, char *extra) 1120 { 1121 struct wireless_dev *wdev = dev->ieee80211_ptr; 1122 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1123 bool ps = wdev->ps; 1124 int timeout = wdev->ps_timeout; 1125 int err; 1126 1127 if (wdev->iftype != NL80211_IFTYPE_STATION) 1128 return -EINVAL; 1129 1130 if (!rdev->ops->set_power_mgmt) 1131 return -EOPNOTSUPP; 1132 1133 if (wrq->disabled) { 1134 ps = false; 1135 } else { 1136 switch (wrq->flags & IW_POWER_MODE) { 1137 case IW_POWER_ON: /* If not specified */ 1138 case IW_POWER_MODE: /* If set all mask */ 1139 case IW_POWER_ALL_R: /* If explicitely state all */ 1140 ps = true; 1141 break; 1142 default: /* Otherwise we ignore */ 1143 return -EINVAL; 1144 } 1145 1146 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1147 return -EINVAL; 1148 1149 if (wrq->flags & IW_POWER_TIMEOUT) 1150 timeout = wrq->value / 1000; 1151 } 1152 1153 err = rdev_set_power_mgmt(rdev, dev, ps, timeout); 1154 if (err) 1155 return err; 1156 1157 wdev->ps = ps; 1158 wdev->ps_timeout = timeout; 1159 1160 return 0; 1161 1162 } 1163 1164 static int cfg80211_wext_giwpower(struct net_device *dev, 1165 struct iw_request_info *info, 1166 struct iw_param *wrq, char *extra) 1167 { 1168 struct wireless_dev *wdev = dev->ieee80211_ptr; 1169 1170 wrq->disabled = !wdev->ps; 1171 1172 return 0; 1173 } 1174 1175 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1176 struct iw_request_info *info, 1177 struct sockaddr *addr, char *extra) 1178 { 1179 struct wireless_dev *wdev = dev->ieee80211_ptr; 1180 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1181 int err; 1182 1183 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1184 return -EINVAL; 1185 1186 if (addr->sa_family != ARPHRD_ETHER) 1187 return -EINVAL; 1188 1189 if (netif_running(dev)) 1190 return -EBUSY; 1191 1192 if (!rdev->ops->set_wds_peer) 1193 return -EOPNOTSUPP; 1194 1195 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data); 1196 if (err) 1197 return err; 1198 1199 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1200 1201 return 0; 1202 } 1203 1204 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1205 struct iw_request_info *info, 1206 struct sockaddr *addr, char *extra) 1207 { 1208 struct wireless_dev *wdev = dev->ieee80211_ptr; 1209 1210 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1211 return -EINVAL; 1212 1213 addr->sa_family = ARPHRD_ETHER; 1214 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1215 1216 return 0; 1217 } 1218 1219 static int cfg80211_wext_siwrate(struct net_device *dev, 1220 struct iw_request_info *info, 1221 struct iw_param *rate, char *extra) 1222 { 1223 struct wireless_dev *wdev = dev->ieee80211_ptr; 1224 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1225 struct cfg80211_bitrate_mask mask; 1226 u32 fixed, maxrate; 1227 struct ieee80211_supported_band *sband; 1228 int band, ridx; 1229 bool match = false; 1230 1231 if (!rdev->ops->set_bitrate_mask) 1232 return -EOPNOTSUPP; 1233 1234 memset(&mask, 0, sizeof(mask)); 1235 fixed = 0; 1236 maxrate = (u32)-1; 1237 1238 if (rate->value < 0) { 1239 /* nothing */ 1240 } else if (rate->fixed) { 1241 fixed = rate->value / 100000; 1242 } else { 1243 maxrate = rate->value / 100000; 1244 } 1245 1246 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1247 sband = wdev->wiphy->bands[band]; 1248 if (sband == NULL) 1249 continue; 1250 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1251 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1252 if (fixed == srate->bitrate) { 1253 mask.control[band].legacy = 1 << ridx; 1254 match = true; 1255 break; 1256 } 1257 if (srate->bitrate <= maxrate) { 1258 mask.control[band].legacy |= 1 << ridx; 1259 match = true; 1260 } 1261 } 1262 } 1263 1264 if (!match) 1265 return -EINVAL; 1266 1267 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); 1268 } 1269 1270 static 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_get_station(rdev, 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 1309 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1310 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1311 { 1312 struct wireless_dev *wdev = dev->ieee80211_ptr; 1313 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1314 /* we are under RTNL - globally locked - so can use static structs */ 1315 static struct iw_statistics wstats; 1316 static struct station_info sinfo; 1317 u8 bssid[ETH_ALEN]; 1318 1319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1320 return NULL; 1321 1322 if (!rdev->ops->get_station) 1323 return NULL; 1324 1325 /* Grab BSSID of current BSS, if any */ 1326 wdev_lock(wdev); 1327 if (!wdev->current_bss) { 1328 wdev_unlock(wdev); 1329 return NULL; 1330 } 1331 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1332 wdev_unlock(wdev); 1333 1334 if (rdev_get_station(rdev, dev, bssid, &sinfo)) 1335 return NULL; 1336 1337 memset(&wstats, 0, sizeof(wstats)); 1338 1339 switch (rdev->wiphy.signal_type) { 1340 case CFG80211_SIGNAL_TYPE_MBM: 1341 if (sinfo.filled & STATION_INFO_SIGNAL) { 1342 int sig = sinfo.signal; 1343 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1344 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1345 wstats.qual.updated |= IW_QUAL_DBM; 1346 wstats.qual.level = sig; 1347 if (sig < -110) 1348 sig = -110; 1349 else if (sig > -40) 1350 sig = -40; 1351 wstats.qual.qual = sig + 110; 1352 break; 1353 } 1354 case CFG80211_SIGNAL_TYPE_UNSPEC: 1355 if (sinfo.filled & STATION_INFO_SIGNAL) { 1356 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1357 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1358 wstats.qual.level = sinfo.signal; 1359 wstats.qual.qual = sinfo.signal; 1360 break; 1361 } 1362 default: 1363 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1364 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1365 } 1366 1367 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1368 if (sinfo.filled & STATION_INFO_RX_DROP_MISC) 1369 wstats.discard.misc = sinfo.rx_dropped_misc; 1370 if (sinfo.filled & STATION_INFO_TX_FAILED) 1371 wstats.discard.retries = sinfo.tx_failed; 1372 1373 return &wstats; 1374 } 1375 1376 static int cfg80211_wext_siwap(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_siwap(dev, info, ap_addr, extra); 1385 case NL80211_IFTYPE_STATION: 1386 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1387 case NL80211_IFTYPE_WDS: 1388 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1389 default: 1390 return -EOPNOTSUPP; 1391 } 1392 } 1393 1394 static int cfg80211_wext_giwap(struct net_device *dev, 1395 struct iw_request_info *info, 1396 struct sockaddr *ap_addr, char *extra) 1397 { 1398 struct wireless_dev *wdev = dev->ieee80211_ptr; 1399 1400 switch (wdev->iftype) { 1401 case NL80211_IFTYPE_ADHOC: 1402 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1403 case NL80211_IFTYPE_STATION: 1404 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1405 case NL80211_IFTYPE_WDS: 1406 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1407 default: 1408 return -EOPNOTSUPP; 1409 } 1410 } 1411 1412 static int cfg80211_wext_siwessid(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_siwessid(dev, info, data, ssid); 1421 case NL80211_IFTYPE_STATION: 1422 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1423 default: 1424 return -EOPNOTSUPP; 1425 } 1426 } 1427 1428 static int cfg80211_wext_giwessid(struct net_device *dev, 1429 struct iw_request_info *info, 1430 struct iw_point *data, char *ssid) 1431 { 1432 struct wireless_dev *wdev = dev->ieee80211_ptr; 1433 1434 data->flags = 0; 1435 data->length = 0; 1436 1437 switch (wdev->iftype) { 1438 case NL80211_IFTYPE_ADHOC: 1439 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1440 case NL80211_IFTYPE_STATION: 1441 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1442 default: 1443 return -EOPNOTSUPP; 1444 } 1445 } 1446 1447 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1448 struct iw_request_info *info, 1449 struct iw_point *data, char *extra) 1450 { 1451 struct wireless_dev *wdev = dev->ieee80211_ptr; 1452 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); 1453 struct cfg80211_pmksa cfg_pmksa; 1454 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1455 1456 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1457 1458 if (wdev->iftype != NL80211_IFTYPE_STATION) 1459 return -EINVAL; 1460 1461 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1462 cfg_pmksa.pmkid = pmksa->pmkid; 1463 1464 switch (pmksa->cmd) { 1465 case IW_PMKSA_ADD: 1466 if (!rdev->ops->set_pmksa) 1467 return -EOPNOTSUPP; 1468 1469 return rdev_set_pmksa(rdev, dev, &cfg_pmksa); 1470 1471 case IW_PMKSA_REMOVE: 1472 if (!rdev->ops->del_pmksa) 1473 return -EOPNOTSUPP; 1474 1475 return rdev_del_pmksa(rdev, dev, &cfg_pmksa); 1476 1477 case IW_PMKSA_FLUSH: 1478 if (!rdev->ops->flush_pmksa) 1479 return -EOPNOTSUPP; 1480 1481 return rdev_flush_pmksa(rdev, dev); 1482 1483 default: 1484 return -EOPNOTSUPP; 1485 } 1486 } 1487 1488 static const iw_handler cfg80211_handlers[] = { 1489 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1490 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1491 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1492 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1493 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1494 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1495 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1496 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1497 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1498 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1499 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1500 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1501 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1502 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1503 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1504 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1505 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1506 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1507 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1508 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1509 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1510 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1511 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1512 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1513 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1514 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1515 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1516 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1517 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1518 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1519 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1520 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1521 }; 1522 1523 const struct iw_handler_def cfg80211_wext_handler = { 1524 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1525 .standard = cfg80211_handlers, 1526 .get_wireless_stats = cfg80211_wireless_stats, 1527 }; 1528