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 strcpy(name, "IEEE 802.11"); 29 return 0; 30 } 31 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname); 32 33 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 34 u32 *mode, char *extra) 35 { 36 struct wireless_dev *wdev = dev->ieee80211_ptr; 37 struct cfg80211_registered_device *rdev; 38 struct vif_params vifparams; 39 enum nl80211_iftype type; 40 41 rdev = wiphy_to_rdev(wdev->wiphy); 42 43 switch (*mode) { 44 case IW_MODE_INFRA: 45 type = NL80211_IFTYPE_STATION; 46 break; 47 case IW_MODE_ADHOC: 48 type = NL80211_IFTYPE_ADHOC; 49 break; 50 case IW_MODE_REPEAT: 51 type = NL80211_IFTYPE_WDS; 52 break; 53 case IW_MODE_MONITOR: 54 type = NL80211_IFTYPE_MONITOR; 55 break; 56 default: 57 return -EINVAL; 58 } 59 60 if (type == wdev->iftype) 61 return 0; 62 63 memset(&vifparams, 0, sizeof(vifparams)); 64 65 return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams); 66 } 67 EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode); 68 69 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 70 u32 *mode, char *extra) 71 { 72 struct wireless_dev *wdev = dev->ieee80211_ptr; 73 74 if (!wdev) 75 return -EOPNOTSUPP; 76 77 switch (wdev->iftype) { 78 case NL80211_IFTYPE_AP: 79 *mode = IW_MODE_MASTER; 80 break; 81 case NL80211_IFTYPE_STATION: 82 *mode = IW_MODE_INFRA; 83 break; 84 case NL80211_IFTYPE_ADHOC: 85 *mode = IW_MODE_ADHOC; 86 break; 87 case NL80211_IFTYPE_MONITOR: 88 *mode = IW_MODE_MONITOR; 89 break; 90 case NL80211_IFTYPE_WDS: 91 *mode = IW_MODE_REPEAT; 92 break; 93 case NL80211_IFTYPE_AP_VLAN: 94 *mode = IW_MODE_SECOND; /* FIXME */ 95 break; 96 default: 97 *mode = IW_MODE_AUTO; 98 break; 99 } 100 return 0; 101 } 102 EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode); 103 104 105 int cfg80211_wext_giwrange(struct net_device *dev, 106 struct iw_request_info *info, 107 struct iw_point *data, char *extra) 108 { 109 struct wireless_dev *wdev = dev->ieee80211_ptr; 110 struct iw_range *range = (struct iw_range *) extra; 111 enum nl80211_band band; 112 int i, c = 0; 113 114 if (!wdev) 115 return -EOPNOTSUPP; 116 117 data->length = sizeof(struct iw_range); 118 memset(range, 0, sizeof(struct iw_range)); 119 120 range->we_version_compiled = WIRELESS_EXT; 121 range->we_version_source = 21; 122 range->retry_capa = IW_RETRY_LIMIT; 123 range->retry_flags = IW_RETRY_LIMIT; 124 range->min_retry = 0; 125 range->max_retry = 255; 126 range->min_rts = 0; 127 range->max_rts = 2347; 128 range->min_frag = 256; 129 range->max_frag = 2346; 130 131 range->max_encoding_tokens = 4; 132 133 range->max_qual.updated = IW_QUAL_NOISE_INVALID; 134 135 switch (wdev->wiphy->signal_type) { 136 case CFG80211_SIGNAL_TYPE_NONE: 137 break; 138 case CFG80211_SIGNAL_TYPE_MBM: 139 range->max_qual.level = (u8)-110; 140 range->max_qual.qual = 70; 141 range->avg_qual.qual = 35; 142 range->max_qual.updated |= IW_QUAL_DBM; 143 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 144 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 145 break; 146 case CFG80211_SIGNAL_TYPE_UNSPEC: 147 range->max_qual.level = 100; 148 range->max_qual.qual = 100; 149 range->avg_qual.qual = 50; 150 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; 151 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; 152 break; 153 } 154 155 range->avg_qual.level = range->max_qual.level / 2; 156 range->avg_qual.noise = range->max_qual.noise / 2; 157 range->avg_qual.updated = range->max_qual.updated; 158 159 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { 160 switch (wdev->wiphy->cipher_suites[i]) { 161 case WLAN_CIPHER_SUITE_TKIP: 162 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | 163 IW_ENC_CAPA_WPA); 164 break; 165 166 case WLAN_CIPHER_SUITE_CCMP: 167 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | 168 IW_ENC_CAPA_WPA2); 169 break; 170 171 case WLAN_CIPHER_SUITE_WEP40: 172 range->encoding_size[range->num_encoding_sizes++] = 173 WLAN_KEY_LEN_WEP40; 174 break; 175 176 case WLAN_CIPHER_SUITE_WEP104: 177 range->encoding_size[range->num_encoding_sizes++] = 178 WLAN_KEY_LEN_WEP104; 179 break; 180 } 181 } 182 183 for (band = 0; band < NUM_NL80211_BANDS; band ++) { 184 struct ieee80211_supported_band *sband; 185 186 sband = wdev->wiphy->bands[band]; 187 188 if (!sband) 189 continue; 190 191 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { 192 struct ieee80211_channel *chan = &sband->channels[i]; 193 194 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { 195 range->freq[c].i = 196 ieee80211_frequency_to_channel( 197 chan->center_freq); 198 range->freq[c].m = chan->center_freq; 199 range->freq[c].e = 6; 200 c++; 201 } 202 } 203 } 204 range->num_channels = c; 205 range->num_frequency = c; 206 207 IW_EVENT_CAPA_SET_KERNEL(range->event_capa); 208 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); 209 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); 210 211 if (wdev->wiphy->max_scan_ssids > 0) 212 range->scan_capa |= IW_SCAN_CAPA_ESSID; 213 214 return 0; 215 } 216 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange); 217 218 219 /** 220 * cfg80211_wext_freq - get wext frequency for non-"auto" 221 * @dev: the net device 222 * @freq: the wext freq encoding 223 * 224 * Returns a frequency, or a negative error code, or 0 for auto. 225 */ 226 int cfg80211_wext_freq(struct iw_freq *freq) 227 { 228 /* 229 * Parse frequency - return 0 for auto and 230 * -EINVAL for impossible things. 231 */ 232 if (freq->e == 0) { 233 enum nl80211_band band = NL80211_BAND_2GHZ; 234 if (freq->m < 0) 235 return 0; 236 if (freq->m > 14) 237 band = NL80211_BAND_5GHZ; 238 return ieee80211_channel_to_frequency(freq->m, band); 239 } else { 240 int i, div = 1000000; 241 for (i = 0; i < freq->e; i++) 242 div /= 10; 243 if (div <= 0) 244 return -EINVAL; 245 return freq->m / div; 246 } 247 } 248 249 int cfg80211_wext_siwrts(struct net_device *dev, 250 struct iw_request_info *info, 251 struct iw_param *rts, char *extra) 252 { 253 struct wireless_dev *wdev = dev->ieee80211_ptr; 254 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 255 u32 orts = wdev->wiphy->rts_threshold; 256 int err; 257 258 if (rts->disabled || !rts->fixed) 259 wdev->wiphy->rts_threshold = (u32) -1; 260 else if (rts->value < 0) 261 return -EINVAL; 262 else 263 wdev->wiphy->rts_threshold = rts->value; 264 265 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD); 266 if (err) 267 wdev->wiphy->rts_threshold = orts; 268 269 return err; 270 } 271 EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts); 272 273 int cfg80211_wext_giwrts(struct net_device *dev, 274 struct iw_request_info *info, 275 struct iw_param *rts, char *extra) 276 { 277 struct wireless_dev *wdev = dev->ieee80211_ptr; 278 279 rts->value = wdev->wiphy->rts_threshold; 280 rts->disabled = rts->value == (u32) -1; 281 rts->fixed = 1; 282 283 return 0; 284 } 285 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts); 286 287 int cfg80211_wext_siwfrag(struct net_device *dev, 288 struct iw_request_info *info, 289 struct iw_param *frag, char *extra) 290 { 291 struct wireless_dev *wdev = dev->ieee80211_ptr; 292 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 293 u32 ofrag = wdev->wiphy->frag_threshold; 294 int err; 295 296 if (frag->disabled || !frag->fixed) 297 wdev->wiphy->frag_threshold = (u32) -1; 298 else if (frag->value < 256) 299 return -EINVAL; 300 else { 301 /* Fragment length must be even, so strip LSB. */ 302 wdev->wiphy->frag_threshold = frag->value & ~0x1; 303 } 304 305 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD); 306 if (err) 307 wdev->wiphy->frag_threshold = ofrag; 308 309 return err; 310 } 311 EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag); 312 313 int cfg80211_wext_giwfrag(struct net_device *dev, 314 struct iw_request_info *info, 315 struct iw_param *frag, char *extra) 316 { 317 struct wireless_dev *wdev = dev->ieee80211_ptr; 318 319 frag->value = wdev->wiphy->frag_threshold; 320 frag->disabled = frag->value == (u32) -1; 321 frag->fixed = 1; 322 323 return 0; 324 } 325 EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag); 326 327 static int cfg80211_wext_siwretry(struct net_device *dev, 328 struct iw_request_info *info, 329 struct iw_param *retry, char *extra) 330 { 331 struct wireless_dev *wdev = dev->ieee80211_ptr; 332 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 333 u32 changed = 0; 334 u8 olong = wdev->wiphy->retry_long; 335 u8 oshort = wdev->wiphy->retry_short; 336 int err; 337 338 if (retry->disabled || retry->value < 1 || retry->value > 255 || 339 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) 340 return -EINVAL; 341 342 if (retry->flags & IW_RETRY_LONG) { 343 wdev->wiphy->retry_long = retry->value; 344 changed |= WIPHY_PARAM_RETRY_LONG; 345 } else if (retry->flags & IW_RETRY_SHORT) { 346 wdev->wiphy->retry_short = retry->value; 347 changed |= WIPHY_PARAM_RETRY_SHORT; 348 } else { 349 wdev->wiphy->retry_short = retry->value; 350 wdev->wiphy->retry_long = retry->value; 351 changed |= WIPHY_PARAM_RETRY_LONG; 352 changed |= WIPHY_PARAM_RETRY_SHORT; 353 } 354 355 if (!changed) 356 return 0; 357 358 err = rdev_set_wiphy_params(rdev, changed); 359 if (err) { 360 wdev->wiphy->retry_short = oshort; 361 wdev->wiphy->retry_long = olong; 362 } 363 364 return err; 365 } 366 367 int cfg80211_wext_giwretry(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; 372 373 retry->disabled = 0; 374 375 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { 376 /* 377 * First return short value, iwconfig will ask long value 378 * later if needed 379 */ 380 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT; 381 retry->value = wdev->wiphy->retry_short; 382 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short) 383 retry->flags |= IW_RETRY_LONG; 384 385 return 0; 386 } 387 388 if (retry->flags & IW_RETRY_LONG) { 389 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 390 retry->value = wdev->wiphy->retry_long; 391 } 392 393 return 0; 394 } 395 EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry); 396 397 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 398 struct net_device *dev, bool pairwise, 399 const u8 *addr, bool remove, bool tx_key, 400 int idx, struct key_params *params) 401 { 402 struct wireless_dev *wdev = dev->ieee80211_ptr; 403 int err, i; 404 bool rejoin = false; 405 406 if (pairwise && !addr) 407 return -EINVAL; 408 409 /* 410 * In many cases we won't actually need this, but it's better 411 * to do it first in case the allocation fails. Don't use wext. 412 */ 413 if (!wdev->wext.keys) { 414 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), 415 GFP_KERNEL); 416 if (!wdev->wext.keys) 417 return -ENOMEM; 418 for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++) 419 wdev->wext.keys->params[i].key = 420 wdev->wext.keys->data[i]; 421 } 422 423 if (wdev->iftype != NL80211_IFTYPE_ADHOC && 424 wdev->iftype != NL80211_IFTYPE_STATION) 425 return -EOPNOTSUPP; 426 427 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 428 if (!wdev->current_bss) 429 return -ENOLINK; 430 431 if (!rdev->ops->set_default_mgmt_key) 432 return -EOPNOTSUPP; 433 434 if (idx < 4 || idx > 5) 435 return -EINVAL; 436 } else if (idx < 0 || idx > 3) 437 return -EINVAL; 438 439 if (remove) { 440 err = 0; 441 if (wdev->current_bss) { 442 /* 443 * If removing the current TX key, we will need to 444 * join a new IBSS without the privacy bit clear. 445 */ 446 if (idx == wdev->wext.default_key && 447 wdev->iftype == NL80211_IFTYPE_ADHOC) { 448 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 449 rejoin = true; 450 } 451 452 if (!pairwise && addr && 453 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) 454 err = -ENOENT; 455 else 456 err = rdev_del_key(rdev, dev, idx, pairwise, 457 addr); 458 } 459 wdev->wext.connect.privacy = false; 460 /* 461 * Applications using wireless extensions expect to be 462 * able to delete keys that don't exist, so allow that. 463 */ 464 if (err == -ENOENT) 465 err = 0; 466 if (!err) { 467 if (!addr && idx < 4) { 468 memset(wdev->wext.keys->data[idx], 0, 469 sizeof(wdev->wext.keys->data[idx])); 470 wdev->wext.keys->params[idx].key_len = 0; 471 wdev->wext.keys->params[idx].cipher = 0; 472 } 473 if (idx == wdev->wext.default_key) 474 wdev->wext.default_key = -1; 475 else if (idx == wdev->wext.default_mgmt_key) 476 wdev->wext.default_mgmt_key = -1; 477 } 478 479 if (!err && rejoin) 480 err = cfg80211_ibss_wext_join(rdev, wdev); 481 482 return err; 483 } 484 485 if (addr) 486 tx_key = false; 487 488 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 489 return -EINVAL; 490 491 err = 0; 492 if (wdev->current_bss) 493 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params); 494 else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 && 495 params->cipher != WLAN_CIPHER_SUITE_WEP104) 496 return -EINVAL; 497 if (err) 498 return err; 499 500 /* 501 * We only need to store WEP keys, since they're the only keys that 502 * can be be set before a connection is established and persist after 503 * disconnecting. 504 */ 505 if (!addr && (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 506 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 507 wdev->wext.keys->params[idx] = *params; 508 memcpy(wdev->wext.keys->data[idx], 509 params->key, params->key_len); 510 wdev->wext.keys->params[idx].key = 511 wdev->wext.keys->data[idx]; 512 } 513 514 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 515 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 516 (tx_key || (!addr && wdev->wext.default_key == -1))) { 517 if (wdev->current_bss) { 518 /* 519 * If we are getting a new TX key from not having 520 * had one before we need to join a new IBSS with 521 * the privacy bit set. 522 */ 523 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 524 wdev->wext.default_key == -1) { 525 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 526 rejoin = true; 527 } 528 err = rdev_set_default_key(rdev, dev, idx, true, true); 529 } 530 if (!err) { 531 wdev->wext.default_key = idx; 532 if (rejoin) 533 err = cfg80211_ibss_wext_join(rdev, wdev); 534 } 535 return err; 536 } 537 538 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 539 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 540 if (wdev->current_bss) 541 err = rdev_set_default_mgmt_key(rdev, dev, idx); 542 if (!err) 543 wdev->wext.default_mgmt_key = idx; 544 return err; 545 } 546 547 return 0; 548 } 549 550 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 551 struct net_device *dev, bool pairwise, 552 const u8 *addr, bool remove, bool tx_key, 553 int idx, struct key_params *params) 554 { 555 int err; 556 557 wdev_lock(dev->ieee80211_ptr); 558 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 559 remove, tx_key, idx, params); 560 wdev_unlock(dev->ieee80211_ptr); 561 562 return err; 563 } 564 565 static int cfg80211_wext_siwencode(struct net_device *dev, 566 struct iw_request_info *info, 567 struct iw_point *erq, char *keybuf) 568 { 569 struct wireless_dev *wdev = dev->ieee80211_ptr; 570 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 571 int idx, err; 572 bool remove = false; 573 struct key_params params; 574 575 if (wdev->iftype != NL80211_IFTYPE_STATION && 576 wdev->iftype != NL80211_IFTYPE_ADHOC) 577 return -EOPNOTSUPP; 578 579 /* no use -- only MFP (set_default_mgmt_key) is optional */ 580 if (!rdev->ops->del_key || 581 !rdev->ops->add_key || 582 !rdev->ops->set_default_key) 583 return -EOPNOTSUPP; 584 585 idx = erq->flags & IW_ENCODE_INDEX; 586 if (idx == 0) { 587 idx = wdev->wext.default_key; 588 if (idx < 0) 589 idx = 0; 590 } else if (idx < 1 || idx > 4) 591 return -EINVAL; 592 else 593 idx--; 594 595 if (erq->flags & IW_ENCODE_DISABLED) 596 remove = true; 597 else if (erq->length == 0) { 598 /* No key data - just set the default TX key index */ 599 err = 0; 600 wdev_lock(wdev); 601 if (wdev->current_bss) 602 err = rdev_set_default_key(rdev, dev, idx, true, 603 true); 604 if (!err) 605 wdev->wext.default_key = idx; 606 wdev_unlock(wdev); 607 return err; 608 } 609 610 memset(¶ms, 0, sizeof(params)); 611 params.key = keybuf; 612 params.key_len = erq->length; 613 if (erq->length == 5) 614 params.cipher = WLAN_CIPHER_SUITE_WEP40; 615 else if (erq->length == 13) 616 params.cipher = WLAN_CIPHER_SUITE_WEP104; 617 else if (!remove) 618 return -EINVAL; 619 620 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 621 wdev->wext.default_key == -1, 622 idx, ¶ms); 623 } 624 625 static int cfg80211_wext_siwencodeext(struct net_device *dev, 626 struct iw_request_info *info, 627 struct iw_point *erq, char *extra) 628 { 629 struct wireless_dev *wdev = dev->ieee80211_ptr; 630 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 631 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 632 const u8 *addr; 633 int idx; 634 bool remove = false; 635 struct key_params params; 636 u32 cipher; 637 638 if (wdev->iftype != NL80211_IFTYPE_STATION && 639 wdev->iftype != NL80211_IFTYPE_ADHOC) 640 return -EOPNOTSUPP; 641 642 /* no use -- only MFP (set_default_mgmt_key) is optional */ 643 if (!rdev->ops->del_key || 644 !rdev->ops->add_key || 645 !rdev->ops->set_default_key) 646 return -EOPNOTSUPP; 647 648 switch (ext->alg) { 649 case IW_ENCODE_ALG_NONE: 650 remove = true; 651 cipher = 0; 652 break; 653 case IW_ENCODE_ALG_WEP: 654 if (ext->key_len == 5) 655 cipher = WLAN_CIPHER_SUITE_WEP40; 656 else if (ext->key_len == 13) 657 cipher = WLAN_CIPHER_SUITE_WEP104; 658 else 659 return -EINVAL; 660 break; 661 case IW_ENCODE_ALG_TKIP: 662 cipher = WLAN_CIPHER_SUITE_TKIP; 663 break; 664 case IW_ENCODE_ALG_CCMP: 665 cipher = WLAN_CIPHER_SUITE_CCMP; 666 break; 667 case IW_ENCODE_ALG_AES_CMAC: 668 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 669 break; 670 default: 671 return -EOPNOTSUPP; 672 } 673 674 if (erq->flags & IW_ENCODE_DISABLED) 675 remove = true; 676 677 idx = erq->flags & IW_ENCODE_INDEX; 678 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 679 if (idx < 4 || idx > 5) { 680 idx = wdev->wext.default_mgmt_key; 681 if (idx < 0) 682 return -EINVAL; 683 } else 684 idx--; 685 } else { 686 if (idx < 1 || idx > 4) { 687 idx = wdev->wext.default_key; 688 if (idx < 0) 689 return -EINVAL; 690 } else 691 idx--; 692 } 693 694 addr = ext->addr.sa_data; 695 if (is_broadcast_ether_addr(addr)) 696 addr = NULL; 697 698 memset(¶ms, 0, sizeof(params)); 699 params.key = ext->key; 700 params.key_len = ext->key_len; 701 params.cipher = cipher; 702 703 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 704 params.seq = ext->rx_seq; 705 params.seq_len = 6; 706 } 707 708 return cfg80211_set_encryption( 709 rdev, dev, 710 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 711 addr, remove, 712 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 713 idx, ¶ms); 714 } 715 716 static int cfg80211_wext_giwencode(struct net_device *dev, 717 struct iw_request_info *info, 718 struct iw_point *erq, char *keybuf) 719 { 720 struct wireless_dev *wdev = dev->ieee80211_ptr; 721 int idx; 722 723 if (wdev->iftype != NL80211_IFTYPE_STATION && 724 wdev->iftype != NL80211_IFTYPE_ADHOC) 725 return -EOPNOTSUPP; 726 727 idx = erq->flags & IW_ENCODE_INDEX; 728 if (idx == 0) { 729 idx = wdev->wext.default_key; 730 if (idx < 0) 731 idx = 0; 732 } else if (idx < 1 || idx > 4) 733 return -EINVAL; 734 else 735 idx--; 736 737 erq->flags = idx + 1; 738 739 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 740 erq->flags |= IW_ENCODE_DISABLED; 741 erq->length = 0; 742 return 0; 743 } 744 745 erq->length = min_t(size_t, erq->length, 746 wdev->wext.keys->params[idx].key_len); 747 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 748 erq->flags |= IW_ENCODE_ENABLED; 749 750 return 0; 751 } 752 753 static int cfg80211_wext_siwfreq(struct net_device *dev, 754 struct iw_request_info *info, 755 struct iw_freq *wextfreq, char *extra) 756 { 757 struct wireless_dev *wdev = dev->ieee80211_ptr; 758 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 759 struct cfg80211_chan_def chandef = { 760 .width = NL80211_CHAN_WIDTH_20_NOHT, 761 }; 762 int freq; 763 764 switch (wdev->iftype) { 765 case NL80211_IFTYPE_STATION: 766 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 767 case NL80211_IFTYPE_ADHOC: 768 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 769 case NL80211_IFTYPE_MONITOR: 770 freq = cfg80211_wext_freq(wextfreq); 771 if (freq < 0) 772 return freq; 773 if (freq == 0) 774 return -EINVAL; 775 chandef.center_freq1 = freq; 776 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 777 if (!chandef.chan) 778 return -EINVAL; 779 return cfg80211_set_monitor_channel(rdev, &chandef); 780 case NL80211_IFTYPE_MESH_POINT: 781 freq = cfg80211_wext_freq(wextfreq); 782 if (freq < 0) 783 return freq; 784 if (freq == 0) 785 return -EINVAL; 786 chandef.center_freq1 = freq; 787 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 788 if (!chandef.chan) 789 return -EINVAL; 790 return cfg80211_set_mesh_channel(rdev, wdev, &chandef); 791 default: 792 return -EOPNOTSUPP; 793 } 794 } 795 796 static int cfg80211_wext_giwfreq(struct net_device *dev, 797 struct iw_request_info *info, 798 struct iw_freq *freq, char *extra) 799 { 800 struct wireless_dev *wdev = dev->ieee80211_ptr; 801 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 802 struct cfg80211_chan_def chandef; 803 int ret; 804 805 switch (wdev->iftype) { 806 case NL80211_IFTYPE_STATION: 807 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 808 case NL80211_IFTYPE_ADHOC: 809 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 810 case NL80211_IFTYPE_MONITOR: 811 if (!rdev->ops->get_channel) 812 return -EINVAL; 813 814 ret = rdev_get_channel(rdev, wdev, &chandef); 815 if (ret) 816 return ret; 817 freq->m = chandef.chan->center_freq; 818 freq->e = 6; 819 return 0; 820 default: 821 return -EINVAL; 822 } 823 } 824 825 static int cfg80211_wext_siwtxpower(struct net_device *dev, 826 struct iw_request_info *info, 827 union iwreq_data *data, char *extra) 828 { 829 struct wireless_dev *wdev = dev->ieee80211_ptr; 830 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 831 enum nl80211_tx_power_setting type; 832 int dbm = 0; 833 834 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 835 return -EINVAL; 836 if (data->txpower.flags & IW_TXPOW_RANGE) 837 return -EINVAL; 838 839 if (!rdev->ops->set_tx_power) 840 return -EOPNOTSUPP; 841 842 /* only change when not disabling */ 843 if (!data->txpower.disabled) { 844 rfkill_set_sw_state(rdev->rfkill, false); 845 846 if (data->txpower.fixed) { 847 /* 848 * wext doesn't support negative values, see 849 * below where it's for automatic 850 */ 851 if (data->txpower.value < 0) 852 return -EINVAL; 853 dbm = data->txpower.value; 854 type = NL80211_TX_POWER_FIXED; 855 /* TODO: do regulatory check! */ 856 } else { 857 /* 858 * Automatic power level setting, max being the value 859 * passed in from userland. 860 */ 861 if (data->txpower.value < 0) { 862 type = NL80211_TX_POWER_AUTOMATIC; 863 } else { 864 dbm = data->txpower.value; 865 type = NL80211_TX_POWER_LIMITED; 866 } 867 } 868 } else { 869 rfkill_set_sw_state(rdev->rfkill, true); 870 schedule_work(&rdev->rfkill_sync); 871 return 0; 872 } 873 874 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); 875 } 876 877 static int cfg80211_wext_giwtxpower(struct net_device *dev, 878 struct iw_request_info *info, 879 union iwreq_data *data, char *extra) 880 { 881 struct wireless_dev *wdev = dev->ieee80211_ptr; 882 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 883 int err, val; 884 885 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 886 return -EINVAL; 887 if (data->txpower.flags & IW_TXPOW_RANGE) 888 return -EINVAL; 889 890 if (!rdev->ops->get_tx_power) 891 return -EOPNOTSUPP; 892 893 err = rdev_get_tx_power(rdev, wdev, &val); 894 if (err) 895 return err; 896 897 /* well... oh well */ 898 data->txpower.fixed = 1; 899 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 900 data->txpower.value = val; 901 data->txpower.flags = IW_TXPOW_DBM; 902 903 return 0; 904 } 905 906 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 907 s32 auth_alg) 908 { 909 int nr_alg = 0; 910 911 if (!auth_alg) 912 return -EINVAL; 913 914 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 915 IW_AUTH_ALG_SHARED_KEY | 916 IW_AUTH_ALG_LEAP)) 917 return -EINVAL; 918 919 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 920 nr_alg++; 921 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 922 } 923 924 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 925 nr_alg++; 926 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 927 } 928 929 if (auth_alg & IW_AUTH_ALG_LEAP) { 930 nr_alg++; 931 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 932 } 933 934 if (nr_alg > 1) 935 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 936 937 return 0; 938 } 939 940 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 941 { 942 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 943 IW_AUTH_WPA_VERSION_WPA2| 944 IW_AUTH_WPA_VERSION_DISABLED)) 945 return -EINVAL; 946 947 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 948 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 949 IW_AUTH_WPA_VERSION_WPA2))) 950 return -EINVAL; 951 952 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 953 wdev->wext.connect.crypto.wpa_versions &= 954 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 955 956 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 957 wdev->wext.connect.crypto.wpa_versions |= 958 NL80211_WPA_VERSION_1; 959 960 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 961 wdev->wext.connect.crypto.wpa_versions |= 962 NL80211_WPA_VERSION_2; 963 964 return 0; 965 } 966 967 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 968 { 969 if (cipher & IW_AUTH_CIPHER_WEP40) 970 wdev->wext.connect.crypto.cipher_group = 971 WLAN_CIPHER_SUITE_WEP40; 972 else if (cipher & IW_AUTH_CIPHER_WEP104) 973 wdev->wext.connect.crypto.cipher_group = 974 WLAN_CIPHER_SUITE_WEP104; 975 else if (cipher & IW_AUTH_CIPHER_TKIP) 976 wdev->wext.connect.crypto.cipher_group = 977 WLAN_CIPHER_SUITE_TKIP; 978 else if (cipher & IW_AUTH_CIPHER_CCMP) 979 wdev->wext.connect.crypto.cipher_group = 980 WLAN_CIPHER_SUITE_CCMP; 981 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 982 wdev->wext.connect.crypto.cipher_group = 983 WLAN_CIPHER_SUITE_AES_CMAC; 984 else if (cipher & IW_AUTH_CIPHER_NONE) 985 wdev->wext.connect.crypto.cipher_group = 0; 986 else 987 return -EINVAL; 988 989 return 0; 990 } 991 992 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 993 { 994 int nr_ciphers = 0; 995 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 996 997 if (cipher & IW_AUTH_CIPHER_WEP40) { 998 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 999 nr_ciphers++; 1000 } 1001 1002 if (cipher & IW_AUTH_CIPHER_WEP104) { 1003 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1004 nr_ciphers++; 1005 } 1006 1007 if (cipher & IW_AUTH_CIPHER_TKIP) { 1008 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1009 nr_ciphers++; 1010 } 1011 1012 if (cipher & IW_AUTH_CIPHER_CCMP) { 1013 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1014 nr_ciphers++; 1015 } 1016 1017 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1018 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1019 nr_ciphers++; 1020 } 1021 1022 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1023 1024 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1025 1026 return 0; 1027 } 1028 1029 1030 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1031 { 1032 int nr_akm_suites = 0; 1033 1034 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1035 IW_AUTH_KEY_MGMT_PSK)) 1036 return -EINVAL; 1037 1038 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1039 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1040 WLAN_AKM_SUITE_8021X; 1041 nr_akm_suites++; 1042 } 1043 1044 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1045 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1046 WLAN_AKM_SUITE_PSK; 1047 nr_akm_suites++; 1048 } 1049 1050 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1051 1052 return 0; 1053 } 1054 1055 static int cfg80211_wext_siwauth(struct net_device *dev, 1056 struct iw_request_info *info, 1057 struct iw_param *data, char *extra) 1058 { 1059 struct wireless_dev *wdev = dev->ieee80211_ptr; 1060 1061 if (wdev->iftype != NL80211_IFTYPE_STATION) 1062 return -EOPNOTSUPP; 1063 1064 switch (data->flags & IW_AUTH_INDEX) { 1065 case IW_AUTH_PRIVACY_INVOKED: 1066 wdev->wext.connect.privacy = data->value; 1067 return 0; 1068 case IW_AUTH_WPA_VERSION: 1069 return cfg80211_set_wpa_version(wdev, data->value); 1070 case IW_AUTH_CIPHER_GROUP: 1071 return cfg80211_set_cipher_group(wdev, data->value); 1072 case IW_AUTH_KEY_MGMT: 1073 return cfg80211_set_key_mgt(wdev, data->value); 1074 case IW_AUTH_CIPHER_PAIRWISE: 1075 return cfg80211_set_cipher_pairwise(wdev, data->value); 1076 case IW_AUTH_80211_AUTH_ALG: 1077 return cfg80211_set_auth_alg(wdev, data->value); 1078 case IW_AUTH_WPA_ENABLED: 1079 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1080 case IW_AUTH_DROP_UNENCRYPTED: 1081 case IW_AUTH_MFP: 1082 return 0; 1083 default: 1084 return -EOPNOTSUPP; 1085 } 1086 } 1087 1088 static int cfg80211_wext_giwauth(struct net_device *dev, 1089 struct iw_request_info *info, 1090 struct iw_param *data, char *extra) 1091 { 1092 /* XXX: what do we need? */ 1093 1094 return -EOPNOTSUPP; 1095 } 1096 1097 static int cfg80211_wext_siwpower(struct net_device *dev, 1098 struct iw_request_info *info, 1099 struct iw_param *wrq, char *extra) 1100 { 1101 struct wireless_dev *wdev = dev->ieee80211_ptr; 1102 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1103 bool ps = wdev->ps; 1104 int timeout = wdev->ps_timeout; 1105 int err; 1106 1107 if (wdev->iftype != NL80211_IFTYPE_STATION) 1108 return -EINVAL; 1109 1110 if (!rdev->ops->set_power_mgmt) 1111 return -EOPNOTSUPP; 1112 1113 if (wrq->disabled) { 1114 ps = false; 1115 } else { 1116 switch (wrq->flags & IW_POWER_MODE) { 1117 case IW_POWER_ON: /* If not specified */ 1118 case IW_POWER_MODE: /* If set all mask */ 1119 case IW_POWER_ALL_R: /* If explicitely state all */ 1120 ps = true; 1121 break; 1122 default: /* Otherwise we ignore */ 1123 return -EINVAL; 1124 } 1125 1126 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1127 return -EINVAL; 1128 1129 if (wrq->flags & IW_POWER_TIMEOUT) 1130 timeout = wrq->value / 1000; 1131 } 1132 1133 err = rdev_set_power_mgmt(rdev, dev, ps, timeout); 1134 if (err) 1135 return err; 1136 1137 wdev->ps = ps; 1138 wdev->ps_timeout = timeout; 1139 1140 return 0; 1141 1142 } 1143 1144 static int cfg80211_wext_giwpower(struct net_device *dev, 1145 struct iw_request_info *info, 1146 struct iw_param *wrq, char *extra) 1147 { 1148 struct wireless_dev *wdev = dev->ieee80211_ptr; 1149 1150 wrq->disabled = !wdev->ps; 1151 1152 return 0; 1153 } 1154 1155 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1156 struct iw_request_info *info, 1157 struct sockaddr *addr, char *extra) 1158 { 1159 struct wireless_dev *wdev = dev->ieee80211_ptr; 1160 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1161 int err; 1162 1163 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1164 return -EINVAL; 1165 1166 if (addr->sa_family != ARPHRD_ETHER) 1167 return -EINVAL; 1168 1169 if (netif_running(dev)) 1170 return -EBUSY; 1171 1172 if (!rdev->ops->set_wds_peer) 1173 return -EOPNOTSUPP; 1174 1175 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data); 1176 if (err) 1177 return err; 1178 1179 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1180 1181 return 0; 1182 } 1183 1184 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1185 struct iw_request_info *info, 1186 struct sockaddr *addr, char *extra) 1187 { 1188 struct wireless_dev *wdev = dev->ieee80211_ptr; 1189 1190 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1191 return -EINVAL; 1192 1193 addr->sa_family = ARPHRD_ETHER; 1194 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1195 1196 return 0; 1197 } 1198 1199 static int cfg80211_wext_siwrate(struct net_device *dev, 1200 struct iw_request_info *info, 1201 struct iw_param *rate, char *extra) 1202 { 1203 struct wireless_dev *wdev = dev->ieee80211_ptr; 1204 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1205 struct cfg80211_bitrate_mask mask; 1206 u32 fixed, maxrate; 1207 struct ieee80211_supported_band *sband; 1208 int band, ridx; 1209 bool match = false; 1210 1211 if (!rdev->ops->set_bitrate_mask) 1212 return -EOPNOTSUPP; 1213 1214 memset(&mask, 0, sizeof(mask)); 1215 fixed = 0; 1216 maxrate = (u32)-1; 1217 1218 if (rate->value < 0) { 1219 /* nothing */ 1220 } else if (rate->fixed) { 1221 fixed = rate->value / 100000; 1222 } else { 1223 maxrate = rate->value / 100000; 1224 } 1225 1226 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1227 sband = wdev->wiphy->bands[band]; 1228 if (sband == NULL) 1229 continue; 1230 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1231 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1232 if (fixed == srate->bitrate) { 1233 mask.control[band].legacy = 1 << ridx; 1234 match = true; 1235 break; 1236 } 1237 if (srate->bitrate <= maxrate) { 1238 mask.control[band].legacy |= 1 << ridx; 1239 match = true; 1240 } 1241 } 1242 } 1243 1244 if (!match) 1245 return -EINVAL; 1246 1247 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); 1248 } 1249 1250 static int cfg80211_wext_giwrate(struct net_device *dev, 1251 struct iw_request_info *info, 1252 struct iw_param *rate, char *extra) 1253 { 1254 struct wireless_dev *wdev = dev->ieee80211_ptr; 1255 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1256 /* we are under RTNL - globally locked - so can use a static struct */ 1257 static struct station_info sinfo; 1258 u8 addr[ETH_ALEN]; 1259 int err; 1260 1261 if (wdev->iftype != NL80211_IFTYPE_STATION) 1262 return -EOPNOTSUPP; 1263 1264 if (!rdev->ops->get_station) 1265 return -EOPNOTSUPP; 1266 1267 err = 0; 1268 wdev_lock(wdev); 1269 if (wdev->current_bss) 1270 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1271 else 1272 err = -EOPNOTSUPP; 1273 wdev_unlock(wdev); 1274 if (err) 1275 return err; 1276 1277 err = rdev_get_station(rdev, dev, addr, &sinfo); 1278 if (err) 1279 return err; 1280 1281 if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE))) 1282 return -EOPNOTSUPP; 1283 1284 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1285 1286 return 0; 1287 } 1288 1289 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1290 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1291 { 1292 struct wireless_dev *wdev = dev->ieee80211_ptr; 1293 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1294 /* we are under RTNL - globally locked - so can use static structs */ 1295 static struct iw_statistics wstats; 1296 static struct station_info sinfo; 1297 u8 bssid[ETH_ALEN]; 1298 1299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1300 return NULL; 1301 1302 if (!rdev->ops->get_station) 1303 return NULL; 1304 1305 /* Grab BSSID of current BSS, if any */ 1306 wdev_lock(wdev); 1307 if (!wdev->current_bss) { 1308 wdev_unlock(wdev); 1309 return NULL; 1310 } 1311 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1312 wdev_unlock(wdev); 1313 1314 memset(&sinfo, 0, sizeof(sinfo)); 1315 1316 if (rdev_get_station(rdev, dev, bssid, &sinfo)) 1317 return NULL; 1318 1319 memset(&wstats, 0, sizeof(wstats)); 1320 1321 switch (rdev->wiphy.signal_type) { 1322 case CFG80211_SIGNAL_TYPE_MBM: 1323 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) { 1324 int sig = sinfo.signal; 1325 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1326 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1327 wstats.qual.updated |= IW_QUAL_DBM; 1328 wstats.qual.level = sig; 1329 if (sig < -110) 1330 sig = -110; 1331 else if (sig > -40) 1332 sig = -40; 1333 wstats.qual.qual = sig + 110; 1334 break; 1335 } 1336 case CFG80211_SIGNAL_TYPE_UNSPEC: 1337 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) { 1338 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1339 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1340 wstats.qual.level = sinfo.signal; 1341 wstats.qual.qual = sinfo.signal; 1342 break; 1343 } 1344 default: 1345 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1346 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1347 } 1348 1349 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1350 if (sinfo.filled & BIT(NL80211_STA_INFO_RX_DROP_MISC)) 1351 wstats.discard.misc = sinfo.rx_dropped_misc; 1352 if (sinfo.filled & BIT(NL80211_STA_INFO_TX_FAILED)) 1353 wstats.discard.retries = sinfo.tx_failed; 1354 1355 return &wstats; 1356 } 1357 1358 static int cfg80211_wext_siwap(struct net_device *dev, 1359 struct iw_request_info *info, 1360 struct sockaddr *ap_addr, char *extra) 1361 { 1362 struct wireless_dev *wdev = dev->ieee80211_ptr; 1363 1364 switch (wdev->iftype) { 1365 case NL80211_IFTYPE_ADHOC: 1366 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1367 case NL80211_IFTYPE_STATION: 1368 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1369 case NL80211_IFTYPE_WDS: 1370 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1371 default: 1372 return -EOPNOTSUPP; 1373 } 1374 } 1375 1376 static int cfg80211_wext_giwap(struct net_device *dev, 1377 struct iw_request_info *info, 1378 struct sockaddr *ap_addr, char *extra) 1379 { 1380 struct wireless_dev *wdev = dev->ieee80211_ptr; 1381 1382 switch (wdev->iftype) { 1383 case NL80211_IFTYPE_ADHOC: 1384 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1385 case NL80211_IFTYPE_STATION: 1386 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1387 case NL80211_IFTYPE_WDS: 1388 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1389 default: 1390 return -EOPNOTSUPP; 1391 } 1392 } 1393 1394 static int cfg80211_wext_siwessid(struct net_device *dev, 1395 struct iw_request_info *info, 1396 struct iw_point *data, char *ssid) 1397 { 1398 struct wireless_dev *wdev = dev->ieee80211_ptr; 1399 1400 switch (wdev->iftype) { 1401 case NL80211_IFTYPE_ADHOC: 1402 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1403 case NL80211_IFTYPE_STATION: 1404 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1405 default: 1406 return -EOPNOTSUPP; 1407 } 1408 } 1409 1410 static int cfg80211_wext_giwessid(struct net_device *dev, 1411 struct iw_request_info *info, 1412 struct iw_point *data, char *ssid) 1413 { 1414 struct wireless_dev *wdev = dev->ieee80211_ptr; 1415 1416 data->flags = 0; 1417 data->length = 0; 1418 1419 switch (wdev->iftype) { 1420 case NL80211_IFTYPE_ADHOC: 1421 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1422 case NL80211_IFTYPE_STATION: 1423 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1424 default: 1425 return -EOPNOTSUPP; 1426 } 1427 } 1428 1429 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1430 struct iw_request_info *info, 1431 struct iw_point *data, char *extra) 1432 { 1433 struct wireless_dev *wdev = dev->ieee80211_ptr; 1434 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1435 struct cfg80211_pmksa cfg_pmksa; 1436 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1437 1438 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1439 1440 if (wdev->iftype != NL80211_IFTYPE_STATION) 1441 return -EINVAL; 1442 1443 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1444 cfg_pmksa.pmkid = pmksa->pmkid; 1445 1446 switch (pmksa->cmd) { 1447 case IW_PMKSA_ADD: 1448 if (!rdev->ops->set_pmksa) 1449 return -EOPNOTSUPP; 1450 1451 return rdev_set_pmksa(rdev, dev, &cfg_pmksa); 1452 1453 case IW_PMKSA_REMOVE: 1454 if (!rdev->ops->del_pmksa) 1455 return -EOPNOTSUPP; 1456 1457 return rdev_del_pmksa(rdev, dev, &cfg_pmksa); 1458 1459 case IW_PMKSA_FLUSH: 1460 if (!rdev->ops->flush_pmksa) 1461 return -EOPNOTSUPP; 1462 1463 return rdev_flush_pmksa(rdev, dev); 1464 1465 default: 1466 return -EOPNOTSUPP; 1467 } 1468 } 1469 1470 static const iw_handler cfg80211_handlers[] = { 1471 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1472 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1473 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1474 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1475 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1476 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1477 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1478 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1479 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1480 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1481 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1482 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1483 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1484 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1485 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1486 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1487 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1488 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1489 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1490 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1491 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1492 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1493 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1494 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1495 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1496 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1497 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1498 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1499 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1500 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1501 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1502 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1503 }; 1504 1505 const struct iw_handler_def cfg80211_wext_handler = { 1506 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1507 .standard = cfg80211_handlers, 1508 .get_wireless_stats = cfg80211_wireless_stats, 1509 }; 1510