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_WEXT_HANDLER(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_rdev(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_WEXT_HANDLER(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_WEXT_HANDLER(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_WEXT_HANDLER(cfg80211_wext_giwrange); 252 253 254 /** 255 * cfg80211_wext_freq - get wext frequency for non-"auto" 256 * @dev: the net device 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 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_rdev(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_WEXT_HANDLER(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_WEXT_HANDLER(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_rdev(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_WEXT_HANDLER(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_WEXT_HANDLER(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_rdev(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_WEXT_HANDLER(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 memset(wdev->wext.keys->data[idx], 0, 500 sizeof(wdev->wext.keys->data[idx])); 501 wdev->wext.keys->params[idx].key_len = 0; 502 wdev->wext.keys->params[idx].cipher = 0; 503 } 504 if (idx == wdev->wext.default_key) 505 wdev->wext.default_key = -1; 506 else if (idx == wdev->wext.default_mgmt_key) 507 wdev->wext.default_mgmt_key = -1; 508 } 509 510 if (!err && rejoin) 511 err = cfg80211_ibss_wext_join(rdev, wdev); 512 513 return err; 514 } 515 516 if (addr) 517 tx_key = false; 518 519 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) 520 return -EINVAL; 521 522 err = 0; 523 if (wdev->current_bss) 524 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params); 525 if (err) 526 return err; 527 528 if (!addr) { 529 wdev->wext.keys->params[idx] = *params; 530 memcpy(wdev->wext.keys->data[idx], 531 params->key, params->key_len); 532 wdev->wext.keys->params[idx].key = 533 wdev->wext.keys->data[idx]; 534 } 535 536 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || 537 params->cipher == WLAN_CIPHER_SUITE_WEP104) && 538 (tx_key || (!addr && wdev->wext.default_key == -1))) { 539 if (wdev->current_bss) { 540 /* 541 * If we are getting a new TX key from not having 542 * had one before we need to join a new IBSS with 543 * the privacy bit set. 544 */ 545 if (wdev->iftype == NL80211_IFTYPE_ADHOC && 546 wdev->wext.default_key == -1) { 547 __cfg80211_leave_ibss(rdev, wdev->netdev, true); 548 rejoin = true; 549 } 550 err = rdev_set_default_key(rdev, dev, idx, true, true); 551 } 552 if (!err) { 553 wdev->wext.default_key = idx; 554 if (rejoin) 555 err = cfg80211_ibss_wext_join(rdev, wdev); 556 } 557 return err; 558 } 559 560 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && 561 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { 562 if (wdev->current_bss) 563 err = rdev_set_default_mgmt_key(rdev, dev, idx); 564 if (!err) 565 wdev->wext.default_mgmt_key = idx; 566 return err; 567 } 568 569 return 0; 570 } 571 572 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, 573 struct net_device *dev, bool pairwise, 574 const u8 *addr, bool remove, bool tx_key, 575 int idx, struct key_params *params) 576 { 577 int err; 578 579 wdev_lock(dev->ieee80211_ptr); 580 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, 581 remove, tx_key, idx, params); 582 wdev_unlock(dev->ieee80211_ptr); 583 584 return err; 585 } 586 587 static int cfg80211_wext_siwencode(struct net_device *dev, 588 struct iw_request_info *info, 589 struct iw_point *erq, char *keybuf) 590 { 591 struct wireless_dev *wdev = dev->ieee80211_ptr; 592 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 593 int idx, err; 594 bool remove = false; 595 struct key_params params; 596 597 if (wdev->iftype != NL80211_IFTYPE_STATION && 598 wdev->iftype != NL80211_IFTYPE_ADHOC) 599 return -EOPNOTSUPP; 600 601 /* no use -- only MFP (set_default_mgmt_key) is optional */ 602 if (!rdev->ops->del_key || 603 !rdev->ops->add_key || 604 !rdev->ops->set_default_key) 605 return -EOPNOTSUPP; 606 607 idx = erq->flags & IW_ENCODE_INDEX; 608 if (idx == 0) { 609 idx = wdev->wext.default_key; 610 if (idx < 0) 611 idx = 0; 612 } else if (idx < 1 || idx > 4) 613 return -EINVAL; 614 else 615 idx--; 616 617 if (erq->flags & IW_ENCODE_DISABLED) 618 remove = true; 619 else if (erq->length == 0) { 620 /* No key data - just set the default TX key index */ 621 err = 0; 622 wdev_lock(wdev); 623 if (wdev->current_bss) 624 err = rdev_set_default_key(rdev, dev, idx, true, 625 true); 626 if (!err) 627 wdev->wext.default_key = idx; 628 wdev_unlock(wdev); 629 return err; 630 } 631 632 memset(¶ms, 0, sizeof(params)); 633 params.key = keybuf; 634 params.key_len = erq->length; 635 if (erq->length == 5) 636 params.cipher = WLAN_CIPHER_SUITE_WEP40; 637 else if (erq->length == 13) 638 params.cipher = WLAN_CIPHER_SUITE_WEP104; 639 else if (!remove) 640 return -EINVAL; 641 642 return cfg80211_set_encryption(rdev, dev, false, NULL, remove, 643 wdev->wext.default_key == -1, 644 idx, ¶ms); 645 } 646 647 static int cfg80211_wext_siwencodeext(struct net_device *dev, 648 struct iw_request_info *info, 649 struct iw_point *erq, char *extra) 650 { 651 struct wireless_dev *wdev = dev->ieee80211_ptr; 652 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 653 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; 654 const u8 *addr; 655 int idx; 656 bool remove = false; 657 struct key_params params; 658 u32 cipher; 659 660 if (wdev->iftype != NL80211_IFTYPE_STATION && 661 wdev->iftype != NL80211_IFTYPE_ADHOC) 662 return -EOPNOTSUPP; 663 664 /* no use -- only MFP (set_default_mgmt_key) is optional */ 665 if (!rdev->ops->del_key || 666 !rdev->ops->add_key || 667 !rdev->ops->set_default_key) 668 return -EOPNOTSUPP; 669 670 switch (ext->alg) { 671 case IW_ENCODE_ALG_NONE: 672 remove = true; 673 cipher = 0; 674 break; 675 case IW_ENCODE_ALG_WEP: 676 if (ext->key_len == 5) 677 cipher = WLAN_CIPHER_SUITE_WEP40; 678 else if (ext->key_len == 13) 679 cipher = WLAN_CIPHER_SUITE_WEP104; 680 else 681 return -EINVAL; 682 break; 683 case IW_ENCODE_ALG_TKIP: 684 cipher = WLAN_CIPHER_SUITE_TKIP; 685 break; 686 case IW_ENCODE_ALG_CCMP: 687 cipher = WLAN_CIPHER_SUITE_CCMP; 688 break; 689 case IW_ENCODE_ALG_AES_CMAC: 690 cipher = WLAN_CIPHER_SUITE_AES_CMAC; 691 break; 692 default: 693 return -EOPNOTSUPP; 694 } 695 696 if (erq->flags & IW_ENCODE_DISABLED) 697 remove = true; 698 699 idx = erq->flags & IW_ENCODE_INDEX; 700 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { 701 if (idx < 4 || idx > 5) { 702 idx = wdev->wext.default_mgmt_key; 703 if (idx < 0) 704 return -EINVAL; 705 } else 706 idx--; 707 } else { 708 if (idx < 1 || idx > 4) { 709 idx = wdev->wext.default_key; 710 if (idx < 0) 711 return -EINVAL; 712 } else 713 idx--; 714 } 715 716 addr = ext->addr.sa_data; 717 if (is_broadcast_ether_addr(addr)) 718 addr = NULL; 719 720 memset(¶ms, 0, sizeof(params)); 721 params.key = ext->key; 722 params.key_len = ext->key_len; 723 params.cipher = cipher; 724 725 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { 726 params.seq = ext->rx_seq; 727 params.seq_len = 6; 728 } 729 730 return cfg80211_set_encryption( 731 rdev, dev, 732 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), 733 addr, remove, 734 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, 735 idx, ¶ms); 736 } 737 738 static int cfg80211_wext_giwencode(struct net_device *dev, 739 struct iw_request_info *info, 740 struct iw_point *erq, char *keybuf) 741 { 742 struct wireless_dev *wdev = dev->ieee80211_ptr; 743 int idx; 744 745 if (wdev->iftype != NL80211_IFTYPE_STATION && 746 wdev->iftype != NL80211_IFTYPE_ADHOC) 747 return -EOPNOTSUPP; 748 749 idx = erq->flags & IW_ENCODE_INDEX; 750 if (idx == 0) { 751 idx = wdev->wext.default_key; 752 if (idx < 0) 753 idx = 0; 754 } else if (idx < 1 || idx > 4) 755 return -EINVAL; 756 else 757 idx--; 758 759 erq->flags = idx + 1; 760 761 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { 762 erq->flags |= IW_ENCODE_DISABLED; 763 erq->length = 0; 764 return 0; 765 } 766 767 erq->length = min_t(size_t, erq->length, 768 wdev->wext.keys->params[idx].key_len); 769 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); 770 erq->flags |= IW_ENCODE_ENABLED; 771 772 return 0; 773 } 774 775 static int cfg80211_wext_siwfreq(struct net_device *dev, 776 struct iw_request_info *info, 777 struct iw_freq *wextfreq, char *extra) 778 { 779 struct wireless_dev *wdev = dev->ieee80211_ptr; 780 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 781 struct cfg80211_chan_def chandef = { 782 .width = NL80211_CHAN_WIDTH_20_NOHT, 783 }; 784 int freq; 785 786 switch (wdev->iftype) { 787 case NL80211_IFTYPE_STATION: 788 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); 789 case NL80211_IFTYPE_ADHOC: 790 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); 791 case NL80211_IFTYPE_MONITOR: 792 freq = cfg80211_wext_freq(wextfreq); 793 if (freq < 0) 794 return freq; 795 if (freq == 0) 796 return -EINVAL; 797 chandef.center_freq1 = freq; 798 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 799 if (!chandef.chan) 800 return -EINVAL; 801 return cfg80211_set_monitor_channel(rdev, &chandef); 802 case NL80211_IFTYPE_MESH_POINT: 803 freq = cfg80211_wext_freq(wextfreq); 804 if (freq < 0) 805 return freq; 806 if (freq == 0) 807 return -EINVAL; 808 chandef.center_freq1 = freq; 809 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); 810 if (!chandef.chan) 811 return -EINVAL; 812 return cfg80211_set_mesh_channel(rdev, wdev, &chandef); 813 default: 814 return -EOPNOTSUPP; 815 } 816 } 817 818 static int cfg80211_wext_giwfreq(struct net_device *dev, 819 struct iw_request_info *info, 820 struct iw_freq *freq, char *extra) 821 { 822 struct wireless_dev *wdev = dev->ieee80211_ptr; 823 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 824 struct cfg80211_chan_def chandef; 825 int ret; 826 827 switch (wdev->iftype) { 828 case NL80211_IFTYPE_STATION: 829 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); 830 case NL80211_IFTYPE_ADHOC: 831 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); 832 case NL80211_IFTYPE_MONITOR: 833 if (!rdev->ops->get_channel) 834 return -EINVAL; 835 836 ret = rdev_get_channel(rdev, wdev, &chandef); 837 if (ret) 838 return ret; 839 freq->m = chandef.chan->center_freq; 840 freq->e = 6; 841 return 0; 842 default: 843 return -EINVAL; 844 } 845 } 846 847 static int cfg80211_wext_siwtxpower(struct net_device *dev, 848 struct iw_request_info *info, 849 union iwreq_data *data, char *extra) 850 { 851 struct wireless_dev *wdev = dev->ieee80211_ptr; 852 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 853 enum nl80211_tx_power_setting type; 854 int dbm = 0; 855 856 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 857 return -EINVAL; 858 if (data->txpower.flags & IW_TXPOW_RANGE) 859 return -EINVAL; 860 861 if (!rdev->ops->set_tx_power) 862 return -EOPNOTSUPP; 863 864 /* only change when not disabling */ 865 if (!data->txpower.disabled) { 866 rfkill_set_sw_state(rdev->rfkill, false); 867 868 if (data->txpower.fixed) { 869 /* 870 * wext doesn't support negative values, see 871 * below where it's for automatic 872 */ 873 if (data->txpower.value < 0) 874 return -EINVAL; 875 dbm = data->txpower.value; 876 type = NL80211_TX_POWER_FIXED; 877 /* TODO: do regulatory check! */ 878 } else { 879 /* 880 * Automatic power level setting, max being the value 881 * passed in from userland. 882 */ 883 if (data->txpower.value < 0) { 884 type = NL80211_TX_POWER_AUTOMATIC; 885 } else { 886 dbm = data->txpower.value; 887 type = NL80211_TX_POWER_LIMITED; 888 } 889 } 890 } else { 891 rfkill_set_sw_state(rdev->rfkill, true); 892 schedule_work(&rdev->rfkill_sync); 893 return 0; 894 } 895 896 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); 897 } 898 899 static int cfg80211_wext_giwtxpower(struct net_device *dev, 900 struct iw_request_info *info, 901 union iwreq_data *data, char *extra) 902 { 903 struct wireless_dev *wdev = dev->ieee80211_ptr; 904 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 905 int err, val; 906 907 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) 908 return -EINVAL; 909 if (data->txpower.flags & IW_TXPOW_RANGE) 910 return -EINVAL; 911 912 if (!rdev->ops->get_tx_power) 913 return -EOPNOTSUPP; 914 915 err = rdev_get_tx_power(rdev, wdev, &val); 916 if (err) 917 return err; 918 919 /* well... oh well */ 920 data->txpower.fixed = 1; 921 data->txpower.disabled = rfkill_blocked(rdev->rfkill); 922 data->txpower.value = val; 923 data->txpower.flags = IW_TXPOW_DBM; 924 925 return 0; 926 } 927 928 static int cfg80211_set_auth_alg(struct wireless_dev *wdev, 929 s32 auth_alg) 930 { 931 int nr_alg = 0; 932 933 if (!auth_alg) 934 return -EINVAL; 935 936 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | 937 IW_AUTH_ALG_SHARED_KEY | 938 IW_AUTH_ALG_LEAP)) 939 return -EINVAL; 940 941 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { 942 nr_alg++; 943 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 944 } 945 946 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { 947 nr_alg++; 948 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; 949 } 950 951 if (auth_alg & IW_AUTH_ALG_LEAP) { 952 nr_alg++; 953 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; 954 } 955 956 if (nr_alg > 1) 957 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; 958 959 return 0; 960 } 961 962 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) 963 { 964 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | 965 IW_AUTH_WPA_VERSION_WPA2| 966 IW_AUTH_WPA_VERSION_DISABLED)) 967 return -EINVAL; 968 969 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && 970 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| 971 IW_AUTH_WPA_VERSION_WPA2))) 972 return -EINVAL; 973 974 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) 975 wdev->wext.connect.crypto.wpa_versions &= 976 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); 977 978 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) 979 wdev->wext.connect.crypto.wpa_versions |= 980 NL80211_WPA_VERSION_1; 981 982 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) 983 wdev->wext.connect.crypto.wpa_versions |= 984 NL80211_WPA_VERSION_2; 985 986 return 0; 987 } 988 989 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) 990 { 991 if (cipher & IW_AUTH_CIPHER_WEP40) 992 wdev->wext.connect.crypto.cipher_group = 993 WLAN_CIPHER_SUITE_WEP40; 994 else if (cipher & IW_AUTH_CIPHER_WEP104) 995 wdev->wext.connect.crypto.cipher_group = 996 WLAN_CIPHER_SUITE_WEP104; 997 else if (cipher & IW_AUTH_CIPHER_TKIP) 998 wdev->wext.connect.crypto.cipher_group = 999 WLAN_CIPHER_SUITE_TKIP; 1000 else if (cipher & IW_AUTH_CIPHER_CCMP) 1001 wdev->wext.connect.crypto.cipher_group = 1002 WLAN_CIPHER_SUITE_CCMP; 1003 else if (cipher & IW_AUTH_CIPHER_AES_CMAC) 1004 wdev->wext.connect.crypto.cipher_group = 1005 WLAN_CIPHER_SUITE_AES_CMAC; 1006 else if (cipher & IW_AUTH_CIPHER_NONE) 1007 wdev->wext.connect.crypto.cipher_group = 0; 1008 else 1009 return -EINVAL; 1010 1011 return 0; 1012 } 1013 1014 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) 1015 { 1016 int nr_ciphers = 0; 1017 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; 1018 1019 if (cipher & IW_AUTH_CIPHER_WEP40) { 1020 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; 1021 nr_ciphers++; 1022 } 1023 1024 if (cipher & IW_AUTH_CIPHER_WEP104) { 1025 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; 1026 nr_ciphers++; 1027 } 1028 1029 if (cipher & IW_AUTH_CIPHER_TKIP) { 1030 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; 1031 nr_ciphers++; 1032 } 1033 1034 if (cipher & IW_AUTH_CIPHER_CCMP) { 1035 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; 1036 nr_ciphers++; 1037 } 1038 1039 if (cipher & IW_AUTH_CIPHER_AES_CMAC) { 1040 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; 1041 nr_ciphers++; 1042 } 1043 1044 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); 1045 1046 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; 1047 1048 return 0; 1049 } 1050 1051 1052 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) 1053 { 1054 int nr_akm_suites = 0; 1055 1056 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | 1057 IW_AUTH_KEY_MGMT_PSK)) 1058 return -EINVAL; 1059 1060 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { 1061 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1062 WLAN_AKM_SUITE_8021X; 1063 nr_akm_suites++; 1064 } 1065 1066 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { 1067 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = 1068 WLAN_AKM_SUITE_PSK; 1069 nr_akm_suites++; 1070 } 1071 1072 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; 1073 1074 return 0; 1075 } 1076 1077 static int cfg80211_wext_siwauth(struct net_device *dev, 1078 struct iw_request_info *info, 1079 struct iw_param *data, char *extra) 1080 { 1081 struct wireless_dev *wdev = dev->ieee80211_ptr; 1082 1083 if (wdev->iftype != NL80211_IFTYPE_STATION) 1084 return -EOPNOTSUPP; 1085 1086 switch (data->flags & IW_AUTH_INDEX) { 1087 case IW_AUTH_PRIVACY_INVOKED: 1088 wdev->wext.connect.privacy = data->value; 1089 return 0; 1090 case IW_AUTH_WPA_VERSION: 1091 return cfg80211_set_wpa_version(wdev, data->value); 1092 case IW_AUTH_CIPHER_GROUP: 1093 return cfg80211_set_cipher_group(wdev, data->value); 1094 case IW_AUTH_KEY_MGMT: 1095 return cfg80211_set_key_mgt(wdev, data->value); 1096 case IW_AUTH_CIPHER_PAIRWISE: 1097 return cfg80211_set_cipher_pairwise(wdev, data->value); 1098 case IW_AUTH_80211_AUTH_ALG: 1099 return cfg80211_set_auth_alg(wdev, data->value); 1100 case IW_AUTH_WPA_ENABLED: 1101 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 1102 case IW_AUTH_DROP_UNENCRYPTED: 1103 case IW_AUTH_MFP: 1104 return 0; 1105 default: 1106 return -EOPNOTSUPP; 1107 } 1108 } 1109 1110 static int cfg80211_wext_giwauth(struct net_device *dev, 1111 struct iw_request_info *info, 1112 struct iw_param *data, char *extra) 1113 { 1114 /* XXX: what do we need? */ 1115 1116 return -EOPNOTSUPP; 1117 } 1118 1119 static int cfg80211_wext_siwpower(struct net_device *dev, 1120 struct iw_request_info *info, 1121 struct iw_param *wrq, char *extra) 1122 { 1123 struct wireless_dev *wdev = dev->ieee80211_ptr; 1124 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1125 bool ps = wdev->ps; 1126 int timeout = wdev->ps_timeout; 1127 int err; 1128 1129 if (wdev->iftype != NL80211_IFTYPE_STATION) 1130 return -EINVAL; 1131 1132 if (!rdev->ops->set_power_mgmt) 1133 return -EOPNOTSUPP; 1134 1135 if (wrq->disabled) { 1136 ps = false; 1137 } else { 1138 switch (wrq->flags & IW_POWER_MODE) { 1139 case IW_POWER_ON: /* If not specified */ 1140 case IW_POWER_MODE: /* If set all mask */ 1141 case IW_POWER_ALL_R: /* If explicitely state all */ 1142 ps = true; 1143 break; 1144 default: /* Otherwise we ignore */ 1145 return -EINVAL; 1146 } 1147 1148 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) 1149 return -EINVAL; 1150 1151 if (wrq->flags & IW_POWER_TIMEOUT) 1152 timeout = wrq->value / 1000; 1153 } 1154 1155 err = rdev_set_power_mgmt(rdev, dev, ps, timeout); 1156 if (err) 1157 return err; 1158 1159 wdev->ps = ps; 1160 wdev->ps_timeout = timeout; 1161 1162 return 0; 1163 1164 } 1165 1166 static int cfg80211_wext_giwpower(struct net_device *dev, 1167 struct iw_request_info *info, 1168 struct iw_param *wrq, char *extra) 1169 { 1170 struct wireless_dev *wdev = dev->ieee80211_ptr; 1171 1172 wrq->disabled = !wdev->ps; 1173 1174 return 0; 1175 } 1176 1177 static int cfg80211_wds_wext_siwap(struct net_device *dev, 1178 struct iw_request_info *info, 1179 struct sockaddr *addr, char *extra) 1180 { 1181 struct wireless_dev *wdev = dev->ieee80211_ptr; 1182 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1183 int err; 1184 1185 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1186 return -EINVAL; 1187 1188 if (addr->sa_family != ARPHRD_ETHER) 1189 return -EINVAL; 1190 1191 if (netif_running(dev)) 1192 return -EBUSY; 1193 1194 if (!rdev->ops->set_wds_peer) 1195 return -EOPNOTSUPP; 1196 1197 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data); 1198 if (err) 1199 return err; 1200 1201 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN); 1202 1203 return 0; 1204 } 1205 1206 static int cfg80211_wds_wext_giwap(struct net_device *dev, 1207 struct iw_request_info *info, 1208 struct sockaddr *addr, char *extra) 1209 { 1210 struct wireless_dev *wdev = dev->ieee80211_ptr; 1211 1212 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS)) 1213 return -EINVAL; 1214 1215 addr->sa_family = ARPHRD_ETHER; 1216 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN); 1217 1218 return 0; 1219 } 1220 1221 static int cfg80211_wext_siwrate(struct net_device *dev, 1222 struct iw_request_info *info, 1223 struct iw_param *rate, char *extra) 1224 { 1225 struct wireless_dev *wdev = dev->ieee80211_ptr; 1226 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1227 struct cfg80211_bitrate_mask mask; 1228 u32 fixed, maxrate; 1229 struct ieee80211_supported_band *sband; 1230 int band, ridx; 1231 bool match = false; 1232 1233 if (!rdev->ops->set_bitrate_mask) 1234 return -EOPNOTSUPP; 1235 1236 memset(&mask, 0, sizeof(mask)); 1237 fixed = 0; 1238 maxrate = (u32)-1; 1239 1240 if (rate->value < 0) { 1241 /* nothing */ 1242 } else if (rate->fixed) { 1243 fixed = rate->value / 100000; 1244 } else { 1245 maxrate = rate->value / 100000; 1246 } 1247 1248 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 1249 sband = wdev->wiphy->bands[band]; 1250 if (sband == NULL) 1251 continue; 1252 for (ridx = 0; ridx < sband->n_bitrates; ridx++) { 1253 struct ieee80211_rate *srate = &sband->bitrates[ridx]; 1254 if (fixed == srate->bitrate) { 1255 mask.control[band].legacy = 1 << ridx; 1256 match = true; 1257 break; 1258 } 1259 if (srate->bitrate <= maxrate) { 1260 mask.control[band].legacy |= 1 << ridx; 1261 match = true; 1262 } 1263 } 1264 } 1265 1266 if (!match) 1267 return -EINVAL; 1268 1269 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); 1270 } 1271 1272 static int cfg80211_wext_giwrate(struct net_device *dev, 1273 struct iw_request_info *info, 1274 struct iw_param *rate, char *extra) 1275 { 1276 struct wireless_dev *wdev = dev->ieee80211_ptr; 1277 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1278 /* we are under RTNL - globally locked - so can use a static struct */ 1279 static struct station_info sinfo; 1280 u8 addr[ETH_ALEN]; 1281 int err; 1282 1283 if (wdev->iftype != NL80211_IFTYPE_STATION) 1284 return -EOPNOTSUPP; 1285 1286 if (!rdev->ops->get_station) 1287 return -EOPNOTSUPP; 1288 1289 err = 0; 1290 wdev_lock(wdev); 1291 if (wdev->current_bss) 1292 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN); 1293 else 1294 err = -EOPNOTSUPP; 1295 wdev_unlock(wdev); 1296 if (err) 1297 return err; 1298 1299 err = rdev_get_station(rdev, dev, addr, &sinfo); 1300 if (err) 1301 return err; 1302 1303 if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE))) 1304 return -EOPNOTSUPP; 1305 1306 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); 1307 1308 return 0; 1309 } 1310 1311 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ 1312 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) 1313 { 1314 struct wireless_dev *wdev = dev->ieee80211_ptr; 1315 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1316 /* we are under RTNL - globally locked - so can use static structs */ 1317 static struct iw_statistics wstats; 1318 static struct station_info sinfo; 1319 u8 bssid[ETH_ALEN]; 1320 1321 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) 1322 return NULL; 1323 1324 if (!rdev->ops->get_station) 1325 return NULL; 1326 1327 /* Grab BSSID of current BSS, if any */ 1328 wdev_lock(wdev); 1329 if (!wdev->current_bss) { 1330 wdev_unlock(wdev); 1331 return NULL; 1332 } 1333 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN); 1334 wdev_unlock(wdev); 1335 1336 memset(&sinfo, 0, sizeof(sinfo)); 1337 1338 if (rdev_get_station(rdev, dev, bssid, &sinfo)) 1339 return NULL; 1340 1341 memset(&wstats, 0, sizeof(wstats)); 1342 1343 switch (rdev->wiphy.signal_type) { 1344 case CFG80211_SIGNAL_TYPE_MBM: 1345 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) { 1346 int sig = sinfo.signal; 1347 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1348 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1349 wstats.qual.updated |= IW_QUAL_DBM; 1350 wstats.qual.level = sig; 1351 if (sig < -110) 1352 sig = -110; 1353 else if (sig > -40) 1354 sig = -40; 1355 wstats.qual.qual = sig + 110; 1356 break; 1357 } 1358 case CFG80211_SIGNAL_TYPE_UNSPEC: 1359 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) { 1360 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; 1361 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; 1362 wstats.qual.level = sinfo.signal; 1363 wstats.qual.qual = sinfo.signal; 1364 break; 1365 } 1366 default: 1367 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; 1368 wstats.qual.updated |= IW_QUAL_QUAL_INVALID; 1369 } 1370 1371 wstats.qual.updated |= IW_QUAL_NOISE_INVALID; 1372 if (sinfo.filled & BIT(NL80211_STA_INFO_RX_DROP_MISC)) 1373 wstats.discard.misc = sinfo.rx_dropped_misc; 1374 if (sinfo.filled & BIT(NL80211_STA_INFO_TX_FAILED)) 1375 wstats.discard.retries = sinfo.tx_failed; 1376 1377 return &wstats; 1378 } 1379 1380 static int cfg80211_wext_siwap(struct net_device *dev, 1381 struct iw_request_info *info, 1382 struct sockaddr *ap_addr, char *extra) 1383 { 1384 struct wireless_dev *wdev = dev->ieee80211_ptr; 1385 1386 switch (wdev->iftype) { 1387 case NL80211_IFTYPE_ADHOC: 1388 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); 1389 case NL80211_IFTYPE_STATION: 1390 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); 1391 case NL80211_IFTYPE_WDS: 1392 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); 1393 default: 1394 return -EOPNOTSUPP; 1395 } 1396 } 1397 1398 static int cfg80211_wext_giwap(struct net_device *dev, 1399 struct iw_request_info *info, 1400 struct sockaddr *ap_addr, char *extra) 1401 { 1402 struct wireless_dev *wdev = dev->ieee80211_ptr; 1403 1404 switch (wdev->iftype) { 1405 case NL80211_IFTYPE_ADHOC: 1406 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); 1407 case NL80211_IFTYPE_STATION: 1408 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); 1409 case NL80211_IFTYPE_WDS: 1410 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); 1411 default: 1412 return -EOPNOTSUPP; 1413 } 1414 } 1415 1416 static int cfg80211_wext_siwessid(struct net_device *dev, 1417 struct iw_request_info *info, 1418 struct iw_point *data, char *ssid) 1419 { 1420 struct wireless_dev *wdev = dev->ieee80211_ptr; 1421 1422 switch (wdev->iftype) { 1423 case NL80211_IFTYPE_ADHOC: 1424 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); 1425 case NL80211_IFTYPE_STATION: 1426 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); 1427 default: 1428 return -EOPNOTSUPP; 1429 } 1430 } 1431 1432 static int cfg80211_wext_giwessid(struct net_device *dev, 1433 struct iw_request_info *info, 1434 struct iw_point *data, char *ssid) 1435 { 1436 struct wireless_dev *wdev = dev->ieee80211_ptr; 1437 1438 data->flags = 0; 1439 data->length = 0; 1440 1441 switch (wdev->iftype) { 1442 case NL80211_IFTYPE_ADHOC: 1443 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); 1444 case NL80211_IFTYPE_STATION: 1445 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); 1446 default: 1447 return -EOPNOTSUPP; 1448 } 1449 } 1450 1451 static int cfg80211_wext_siwpmksa(struct net_device *dev, 1452 struct iw_request_info *info, 1453 struct iw_point *data, char *extra) 1454 { 1455 struct wireless_dev *wdev = dev->ieee80211_ptr; 1456 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); 1457 struct cfg80211_pmksa cfg_pmksa; 1458 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; 1459 1460 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); 1461 1462 if (wdev->iftype != NL80211_IFTYPE_STATION) 1463 return -EINVAL; 1464 1465 cfg_pmksa.bssid = pmksa->bssid.sa_data; 1466 cfg_pmksa.pmkid = pmksa->pmkid; 1467 1468 switch (pmksa->cmd) { 1469 case IW_PMKSA_ADD: 1470 if (!rdev->ops->set_pmksa) 1471 return -EOPNOTSUPP; 1472 1473 return rdev_set_pmksa(rdev, dev, &cfg_pmksa); 1474 1475 case IW_PMKSA_REMOVE: 1476 if (!rdev->ops->del_pmksa) 1477 return -EOPNOTSUPP; 1478 1479 return rdev_del_pmksa(rdev, dev, &cfg_pmksa); 1480 1481 case IW_PMKSA_FLUSH: 1482 if (!rdev->ops->flush_pmksa) 1483 return -EOPNOTSUPP; 1484 1485 return rdev_flush_pmksa(rdev, dev); 1486 1487 default: 1488 return -EOPNOTSUPP; 1489 } 1490 } 1491 1492 static const iw_handler cfg80211_handlers[] = { 1493 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, 1494 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq, 1495 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq, 1496 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode, 1497 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode, 1498 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange, 1499 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap, 1500 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap, 1501 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme, 1502 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan, 1503 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan, 1504 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid, 1505 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid, 1506 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate, 1507 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate, 1508 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts, 1509 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts, 1510 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag, 1511 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag, 1512 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower, 1513 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower, 1514 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry, 1515 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry, 1516 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode, 1517 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode, 1518 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower, 1519 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower, 1520 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, 1521 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth, 1522 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth, 1523 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext, 1524 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa, 1525 }; 1526 1527 const struct iw_handler_def cfg80211_wext_handler = { 1528 .num_standard = ARRAY_SIZE(cfg80211_handlers), 1529 .standard = cfg80211_handlers, 1530 .get_wireless_stats = cfg80211_wireless_stats, 1531 }; 1532