1 /* 2 * Copyright (c) 2012-2012 Quantenna Communications, Inc. 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 */ 16 17 #include <linux/kernel.h> 18 #include <linux/etherdevice.h> 19 #include <linux/vmalloc.h> 20 #include <linux/ieee80211.h> 21 #include <net/cfg80211.h> 22 #include <net/netlink.h> 23 24 #include "cfg80211.h" 25 #include "commands.h" 26 #include "core.h" 27 #include "util.h" 28 #include "bus.h" 29 30 /* Supported rates to be advertised to the cfg80211 */ 31 static struct ieee80211_rate qtnf_rates_2g[] = { 32 {.bitrate = 10, .hw_value = 2, }, 33 {.bitrate = 20, .hw_value = 4, }, 34 {.bitrate = 55, .hw_value = 11, }, 35 {.bitrate = 110, .hw_value = 22, }, 36 {.bitrate = 60, .hw_value = 12, }, 37 {.bitrate = 90, .hw_value = 18, }, 38 {.bitrate = 120, .hw_value = 24, }, 39 {.bitrate = 180, .hw_value = 36, }, 40 {.bitrate = 240, .hw_value = 48, }, 41 {.bitrate = 360, .hw_value = 72, }, 42 {.bitrate = 480, .hw_value = 96, }, 43 {.bitrate = 540, .hw_value = 108, }, 44 }; 45 46 /* Supported rates to be advertised to the cfg80211 */ 47 static struct ieee80211_rate qtnf_rates_5g[] = { 48 {.bitrate = 60, .hw_value = 12, }, 49 {.bitrate = 90, .hw_value = 18, }, 50 {.bitrate = 120, .hw_value = 24, }, 51 {.bitrate = 180, .hw_value = 36, }, 52 {.bitrate = 240, .hw_value = 48, }, 53 {.bitrate = 360, .hw_value = 72, }, 54 {.bitrate = 480, .hw_value = 96, }, 55 {.bitrate = 540, .hw_value = 108, }, 56 }; 57 58 /* Supported crypto cipher suits to be advertised to cfg80211 */ 59 static const u32 qtnf_cipher_suites[] = { 60 WLAN_CIPHER_SUITE_TKIP, 61 WLAN_CIPHER_SUITE_CCMP, 62 WLAN_CIPHER_SUITE_AES_CMAC, 63 }; 64 65 /* Supported mgmt frame types to be advertised to cfg80211 */ 66 static const struct ieee80211_txrx_stypes 67 qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = { 68 [NL80211_IFTYPE_STATION] = { 69 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 70 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 71 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 72 }, 73 [NL80211_IFTYPE_AP] = { 74 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 75 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 76 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 77 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 78 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 79 BIT(IEEE80211_STYPE_AUTH >> 4), 80 }, 81 }; 82 83 static int 84 qtnf_validate_iface_combinations(struct wiphy *wiphy, 85 struct qtnf_vif *change_vif, 86 enum nl80211_iftype new_type) 87 { 88 struct qtnf_wmac *mac; 89 struct qtnf_vif *vif; 90 int i; 91 int ret = 0; 92 struct iface_combination_params params = { 93 .num_different_channels = 1, 94 }; 95 96 mac = wiphy_priv(wiphy); 97 if (!mac) 98 return -EFAULT; 99 100 for (i = 0; i < QTNF_MAX_INTF; i++) { 101 vif = &mac->iflist[i]; 102 if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) 103 params.iftype_num[vif->wdev.iftype]++; 104 } 105 106 if (change_vif) { 107 params.iftype_num[new_type]++; 108 params.iftype_num[change_vif->wdev.iftype]--; 109 } else { 110 params.iftype_num[new_type]++; 111 } 112 113 ret = cfg80211_check_combinations(wiphy, ¶ms); 114 115 return ret; 116 } 117 118 static int 119 qtnf_change_virtual_intf(struct wiphy *wiphy, 120 struct net_device *dev, 121 enum nl80211_iftype type, 122 struct vif_params *params) 123 { 124 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 125 u8 *mac_addr; 126 int ret; 127 128 ret = qtnf_validate_iface_combinations(wiphy, vif, type); 129 if (ret) { 130 pr_err("VIF%u.%u combination check: failed to set type %d\n", 131 vif->mac->macid, vif->vifid, type); 132 return ret; 133 } 134 135 if (params) 136 mac_addr = params->macaddr; 137 else 138 mac_addr = NULL; 139 140 qtnf_scan_done(vif->mac, true); 141 142 ret = qtnf_cmd_send_change_intf_type(vif, type, mac_addr); 143 if (ret) { 144 pr_err("VIF%u.%u: failed to change VIF type: %d\n", 145 vif->mac->macid, vif->vifid, ret); 146 return ret; 147 } 148 149 vif->wdev.iftype = type; 150 return 0; 151 } 152 153 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 154 { 155 struct net_device *netdev = wdev->netdev; 156 struct qtnf_vif *vif; 157 158 if (WARN_ON(!netdev)) 159 return -EFAULT; 160 161 vif = qtnf_netdev_get_priv(wdev->netdev); 162 163 qtnf_scan_done(vif->mac, true); 164 165 /* Stop data */ 166 netif_tx_stop_all_queues(netdev); 167 if (netif_carrier_ok(netdev)) 168 netif_carrier_off(netdev); 169 170 if (netdev->reg_state == NETREG_REGISTERED) 171 unregister_netdevice(netdev); 172 173 if (qtnf_cmd_send_del_intf(vif)) 174 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 175 vif->vifid); 176 177 vif->netdev->ieee80211_ptr = NULL; 178 vif->netdev = NULL; 179 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 180 eth_zero_addr(vif->mac_addr); 181 eth_zero_addr(vif->bssid); 182 183 return 0; 184 } 185 186 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 187 const char *name, 188 unsigned char name_assign_t, 189 enum nl80211_iftype type, 190 struct vif_params *params) 191 { 192 struct qtnf_wmac *mac; 193 struct qtnf_vif *vif; 194 u8 *mac_addr = NULL; 195 int ret; 196 197 mac = wiphy_priv(wiphy); 198 199 if (!mac) 200 return ERR_PTR(-EFAULT); 201 202 ret = qtnf_validate_iface_combinations(wiphy, NULL, type); 203 if (ret) { 204 pr_err("MAC%u invalid combination: failed to add type %d\n", 205 mac->macid, type); 206 return ERR_PTR(ret); 207 } 208 209 switch (type) { 210 case NL80211_IFTYPE_STATION: 211 case NL80211_IFTYPE_AP: 212 vif = qtnf_mac_get_free_vif(mac); 213 if (!vif) { 214 pr_err("MAC%u: no free VIF available\n", mac->macid); 215 return ERR_PTR(-EFAULT); 216 } 217 218 eth_zero_addr(vif->mac_addr); 219 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 220 vif->wdev.wiphy = wiphy; 221 vif->wdev.iftype = type; 222 vif->sta_state = QTNF_STA_DISCONNECTED; 223 break; 224 default: 225 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 226 return ERR_PTR(-ENOTSUPP); 227 } 228 229 if (params) 230 mac_addr = params->macaddr; 231 232 if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) { 233 pr_err("VIF%u.%u: failed to add VIF\n", mac->macid, vif->vifid); 234 goto err_cmd; 235 } 236 237 if (!is_valid_ether_addr(vif->mac_addr)) { 238 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 239 mac->macid, vif->vifid, vif->mac_addr); 240 goto err_mac; 241 } 242 243 if (qtnf_core_net_attach(mac, vif, name, name_assign_t)) { 244 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 245 vif->vifid); 246 goto err_net; 247 } 248 249 vif->wdev.netdev = vif->netdev; 250 return &vif->wdev; 251 252 err_net: 253 vif->netdev = NULL; 254 err_mac: 255 qtnf_cmd_send_del_intf(vif); 256 err_cmd: 257 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 258 eth_zero_addr(vif->mac_addr); 259 eth_zero_addr(vif->bssid); 260 261 return ERR_PTR(-EFAULT); 262 } 263 264 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 265 const struct cfg80211_beacon_data *info) 266 { 267 int ret = 0; 268 269 if (!info->beacon_ies || !info->beacon_ies_len) { 270 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 271 NULL, 0); 272 } else { 273 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 274 info->beacon_ies, 275 info->beacon_ies_len); 276 } 277 278 if (ret) 279 goto out; 280 281 if (!info->proberesp_ies || !info->proberesp_ies_len) { 282 ret = qtnf_cmd_send_mgmt_set_appie(vif, 283 QLINK_IE_SET_PROBE_RESP_IES, 284 NULL, 0); 285 } else { 286 ret = qtnf_cmd_send_mgmt_set_appie(vif, 287 QLINK_IE_SET_PROBE_RESP_IES, 288 info->proberesp_ies, 289 info->proberesp_ies_len); 290 } 291 292 if (ret) 293 goto out; 294 295 if (!info->assocresp_ies || !info->assocresp_ies_len) { 296 ret = qtnf_cmd_send_mgmt_set_appie(vif, 297 QLINK_IE_SET_ASSOC_RESP, 298 NULL, 0); 299 } else { 300 ret = qtnf_cmd_send_mgmt_set_appie(vif, 301 QLINK_IE_SET_ASSOC_RESP, 302 info->assocresp_ies, 303 info->assocresp_ies_len); 304 } 305 306 out: 307 return ret; 308 } 309 310 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 311 struct cfg80211_beacon_data *info) 312 { 313 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 314 315 return qtnf_mgmt_set_appie(vif, info); 316 } 317 318 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 319 struct cfg80211_ap_settings *settings) 320 { 321 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 322 int ret; 323 324 ret = qtnf_cmd_send_start_ap(vif, settings); 325 if (ret) 326 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 327 vif->vifid); 328 329 return ret; 330 } 331 332 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 333 { 334 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 335 int ret; 336 337 qtnf_scan_done(vif->mac, true); 338 339 ret = qtnf_cmd_send_stop_ap(vif); 340 if (ret) { 341 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 342 vif->mac->macid, vif->vifid); 343 344 netif_carrier_off(vif->netdev); 345 } 346 347 return ret; 348 } 349 350 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 351 { 352 struct qtnf_wmac *mac = wiphy_priv(wiphy); 353 struct qtnf_vif *vif; 354 int ret; 355 356 vif = qtnf_mac_get_base_vif(mac); 357 if (!vif) { 358 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 359 return -EFAULT; 360 } 361 362 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 363 pr_err("MAC%u: can't modify retry params\n", mac->macid); 364 return -EOPNOTSUPP; 365 } 366 367 ret = qtnf_cmd_send_update_phy_params(mac, changed); 368 if (ret) 369 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 370 371 return ret; 372 } 373 374 static void 375 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 376 u16 frame_type, bool reg) 377 { 378 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 379 u16 mgmt_type; 380 u16 new_mask; 381 u16 qlink_frame_type = 0; 382 383 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 384 385 if (reg) 386 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 387 else 388 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 389 390 if (new_mask == vif->mgmt_frames_bitmask) 391 return; 392 393 switch (frame_type & IEEE80211_FCTL_STYPE) { 394 case IEEE80211_STYPE_REASSOC_REQ: 395 case IEEE80211_STYPE_ASSOC_REQ: 396 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 397 break; 398 case IEEE80211_STYPE_AUTH: 399 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 400 break; 401 case IEEE80211_STYPE_PROBE_REQ: 402 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 403 break; 404 case IEEE80211_STYPE_ACTION: 405 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 406 break; 407 default: 408 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 409 vif->mac->macid, vif->vifid, 410 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 411 return; 412 } 413 414 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 415 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 416 vif->mac->macid, vif->vifid, reg ? "" : "un", 417 frame_type); 418 return; 419 } 420 421 vif->mgmt_frames_bitmask = new_mask; 422 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 423 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 424 } 425 426 static int 427 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 428 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 429 { 430 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 431 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 432 u32 short_cookie = prandom_u32(); 433 u16 flags = 0; 434 u16 freq; 435 436 *cookie = short_cookie; 437 438 if (params->offchan) 439 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 440 441 if (params->no_cck) 442 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 443 444 if (params->dont_wait_for_ack) 445 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 446 447 /* If channel is not specified, pass "freq = 0" to tell device 448 * firmware to use current channel. 449 */ 450 if (params->chan) 451 freq = params->chan->center_freq; 452 else 453 freq = 0; 454 455 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 456 wdev->netdev->name, freq, 457 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 458 params->len, short_cookie, flags); 459 460 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 461 freq, 462 params->buf, params->len); 463 } 464 465 static int 466 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 467 const u8 *mac, struct station_info *sinfo) 468 { 469 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 470 471 sinfo->generation = vif->generation; 472 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 473 } 474 475 static int 476 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 477 int idx, u8 *mac, struct station_info *sinfo) 478 { 479 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 480 const struct qtnf_sta_node *sta_node; 481 int ret; 482 483 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 484 485 if (unlikely(!sta_node)) 486 return -ENOENT; 487 488 ether_addr_copy(mac, sta_node->mac_addr); 489 490 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo); 491 492 if (unlikely(ret == -ENOENT)) { 493 qtnf_sta_list_del(vif, mac); 494 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 495 sinfo->filled = 0; 496 } 497 498 sinfo->generation = vif->generation; 499 500 return ret; 501 } 502 503 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 504 u8 key_index, bool pairwise, const u8 *mac_addr, 505 struct key_params *params) 506 { 507 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 508 int ret; 509 510 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 511 if (ret) 512 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 513 vif->mac->macid, vif->vifid, params->cipher, key_index, 514 pairwise); 515 516 return ret; 517 } 518 519 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 520 u8 key_index, bool pairwise, const u8 *mac_addr) 521 { 522 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 523 int ret; 524 525 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 526 if (ret) 527 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 528 vif->mac->macid, vif->vifid, key_index, pairwise); 529 530 return ret; 531 } 532 533 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 534 u8 key_index, bool unicast, bool multicast) 535 { 536 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 537 int ret; 538 539 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 540 if (ret) 541 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 542 vif->mac->macid, vif->vifid, key_index, unicast, 543 multicast); 544 545 return ret; 546 } 547 548 static int 549 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 550 u8 key_index) 551 { 552 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 553 int ret; 554 555 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 556 if (ret) 557 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 558 vif->mac->macid, vif->vifid, key_index); 559 560 return ret; 561 } 562 563 static int 564 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 565 const u8 *mac, struct station_parameters *params) 566 { 567 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 568 int ret; 569 570 ret = qtnf_cmd_send_change_sta(vif, mac, params); 571 if (ret) 572 pr_err("VIF%u.%u: failed to change STA %pM\n", 573 vif->mac->macid, vif->vifid, mac); 574 575 return ret; 576 } 577 578 static int 579 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 580 struct station_del_parameters *params) 581 { 582 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 583 int ret; 584 585 if (params->mac && 586 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 587 !is_broadcast_ether_addr(params->mac) && 588 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 589 return 0; 590 591 ret = qtnf_cmd_send_del_sta(vif, params); 592 if (ret) 593 pr_err("VIF%u.%u: failed to delete STA %pM\n", 594 vif->mac->macid, vif->vifid, params->mac); 595 return ret; 596 } 597 598 static int 599 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 600 { 601 struct qtnf_wmac *mac = wiphy_priv(wiphy); 602 603 cancel_delayed_work_sync(&mac->scan_timeout); 604 605 mac->scan_req = request; 606 607 if (qtnf_cmd_send_scan(mac)) { 608 pr_err("MAC%u: failed to start scan\n", mac->macid); 609 mac->scan_req = NULL; 610 return -EFAULT; 611 } 612 613 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 614 QTNF_SCAN_TIMEOUT_SEC * HZ); 615 616 return 0; 617 } 618 619 static int 620 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 621 struct cfg80211_connect_params *sme) 622 { 623 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 624 int ret; 625 626 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 627 return -EOPNOTSUPP; 628 629 if (vif->sta_state != QTNF_STA_DISCONNECTED) 630 return -EBUSY; 631 632 if (sme->bssid) 633 ether_addr_copy(vif->bssid, sme->bssid); 634 else 635 eth_zero_addr(vif->bssid); 636 637 ret = qtnf_cmd_send_connect(vif, sme); 638 if (ret) { 639 pr_err("VIF%u.%u: failed to connect\n", vif->mac->macid, 640 vif->vifid); 641 return ret; 642 } 643 644 vif->sta_state = QTNF_STA_CONNECTING; 645 return 0; 646 } 647 648 static int 649 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 650 u16 reason_code) 651 { 652 struct qtnf_wmac *mac = wiphy_priv(wiphy); 653 struct qtnf_vif *vif; 654 int ret; 655 656 vif = qtnf_mac_get_base_vif(mac); 657 if (!vif) { 658 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 659 return -EFAULT; 660 } 661 662 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 663 return -EOPNOTSUPP; 664 665 if (vif->sta_state == QTNF_STA_DISCONNECTED) 666 return 0; 667 668 ret = qtnf_cmd_send_disconnect(vif, reason_code); 669 if (ret) { 670 pr_err("VIF%u.%u: failed to disconnect\n", mac->macid, 671 vif->vifid); 672 return ret; 673 } 674 675 return 0; 676 } 677 678 static int 679 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 680 int idx, struct survey_info *survey) 681 { 682 struct qtnf_wmac *mac = wiphy_priv(wiphy); 683 struct wireless_dev *wdev = dev->ieee80211_ptr; 684 struct ieee80211_supported_band *sband; 685 const struct cfg80211_chan_def *chandef = &wdev->chandef; 686 struct ieee80211_channel *chan; 687 struct qtnf_chan_stats stats; 688 struct qtnf_vif *vif; 689 int ret; 690 691 vif = qtnf_netdev_get_priv(dev); 692 693 sband = wiphy->bands[NL80211_BAND_2GHZ]; 694 if (sband && idx >= sband->n_channels) { 695 idx -= sband->n_channels; 696 sband = NULL; 697 } 698 699 if (!sband) 700 sband = wiphy->bands[NL80211_BAND_5GHZ]; 701 702 if (!sband || idx >= sband->n_channels) 703 return -ENOENT; 704 705 chan = &sband->channels[idx]; 706 memset(&stats, 0, sizeof(stats)); 707 708 survey->channel = chan; 709 survey->filled = 0x0; 710 711 if (chandef->chan) { 712 if (chan->hw_value == chandef->chan->hw_value) 713 survey->filled = SURVEY_INFO_IN_USE; 714 } 715 716 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 717 switch (ret) { 718 case 0: 719 if (unlikely(stats.chan_num != chan->hw_value)) { 720 pr_err("received stats for channel %d instead of %d\n", 721 stats.chan_num, chan->hw_value); 722 ret = -EINVAL; 723 break; 724 } 725 726 survey->filled |= SURVEY_INFO_TIME | 727 SURVEY_INFO_TIME_SCAN | 728 SURVEY_INFO_TIME_BUSY | 729 SURVEY_INFO_TIME_RX | 730 SURVEY_INFO_TIME_TX | 731 SURVEY_INFO_NOISE_DBM; 732 733 survey->time_scan = stats.cca_try; 734 survey->time = stats.cca_try; 735 survey->time_tx = stats.cca_tx; 736 survey->time_rx = stats.cca_rx; 737 survey->time_busy = stats.cca_busy; 738 survey->noise = stats.chan_noise; 739 break; 740 case -ENOENT: 741 pr_debug("no stats for channel %u\n", chan->hw_value); 742 ret = 0; 743 break; 744 default: 745 pr_debug("failed to get chan(%d) stats from card\n", 746 chan->hw_value); 747 ret = -EINVAL; 748 break; 749 } 750 751 return ret; 752 } 753 754 static int 755 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 756 struct cfg80211_chan_def *chandef) 757 { 758 struct net_device *ndev = wdev->netdev; 759 struct qtnf_vif *vif; 760 int ret; 761 762 if (!ndev) 763 return -ENODEV; 764 765 vif = qtnf_netdev_get_priv(wdev->netdev); 766 767 ret = qtnf_cmd_get_channel(vif, chandef); 768 if (ret) { 769 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 770 goto out; 771 } 772 773 if (!cfg80211_chandef_valid(chandef)) { 774 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 775 ndev->name, chandef->chan->center_freq, 776 chandef->center_freq1, chandef->center_freq2, 777 chandef->width); 778 ret = -ENODATA; 779 } 780 781 out: 782 return ret; 783 } 784 785 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 786 struct cfg80211_csa_settings *params) 787 { 788 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 789 int ret; 790 791 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 792 params->chandef.chan->hw_value, params->count, 793 params->radar_required, params->block_tx); 794 795 if (!cfg80211_chandef_valid(¶ms->chandef)) { 796 pr_err("%s: invalid channel\n", dev->name); 797 return -EINVAL; 798 } 799 800 ret = qtnf_cmd_send_chan_switch(vif, params); 801 if (ret) 802 pr_warn("%s: failed to switch to channel (%u)\n", 803 dev->name, params->chandef.chan->hw_value); 804 805 return ret; 806 } 807 808 static int qtnf_start_radar_detection(struct wiphy *wiphy, 809 struct net_device *ndev, 810 struct cfg80211_chan_def *chandef, 811 u32 cac_time_ms) 812 { 813 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 814 int ret; 815 816 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 817 if (ret) 818 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 819 820 return ret; 821 } 822 823 static int qtnf_set_mac_acl(struct wiphy *wiphy, 824 struct net_device *dev, 825 const struct cfg80211_acl_data *params) 826 { 827 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 828 int ret; 829 830 ret = qtnf_cmd_set_mac_acl(vif, params); 831 if (ret) 832 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 833 834 return ret; 835 } 836 837 static struct cfg80211_ops qtn_cfg80211_ops = { 838 .add_virtual_intf = qtnf_add_virtual_intf, 839 .change_virtual_intf = qtnf_change_virtual_intf, 840 .del_virtual_intf = qtnf_del_virtual_intf, 841 .start_ap = qtnf_start_ap, 842 .change_beacon = qtnf_change_beacon, 843 .stop_ap = qtnf_stop_ap, 844 .set_wiphy_params = qtnf_set_wiphy_params, 845 .mgmt_frame_register = qtnf_mgmt_frame_register, 846 .mgmt_tx = qtnf_mgmt_tx, 847 .change_station = qtnf_change_station, 848 .del_station = qtnf_del_station, 849 .get_station = qtnf_get_station, 850 .dump_station = qtnf_dump_station, 851 .add_key = qtnf_add_key, 852 .del_key = qtnf_del_key, 853 .set_default_key = qtnf_set_default_key, 854 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 855 .scan = qtnf_scan, 856 .connect = qtnf_connect, 857 .disconnect = qtnf_disconnect, 858 .dump_survey = qtnf_dump_survey, 859 .get_channel = qtnf_get_channel, 860 .channel_switch = qtnf_channel_switch, 861 .start_radar_detection = qtnf_start_radar_detection, 862 .set_mac_acl = qtnf_set_mac_acl, 863 }; 864 865 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 866 struct regulatory_request *req) 867 { 868 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 869 struct qtnf_bus *bus = mac->bus; 870 struct wiphy *wiphy; 871 unsigned int mac_idx; 872 enum nl80211_band band; 873 int ret; 874 875 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 876 req->alpha2[0], req->alpha2[1]); 877 878 ret = qtnf_cmd_reg_notify(bus, req); 879 if (ret) { 880 if (ret != -EOPNOTSUPP && ret != -EALREADY) 881 pr_err("failed to update reg domain to %c%c\n", 882 req->alpha2[0], req->alpha2[1]); 883 return; 884 } 885 886 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 887 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 888 continue; 889 890 mac = bus->mac[mac_idx]; 891 if (!mac) 892 continue; 893 894 wiphy = priv_to_wiphy(mac); 895 896 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 897 if (!wiphy->bands[band]) 898 continue; 899 900 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 901 if (ret) 902 pr_err("failed to get chan info for mac %u band %u\n", 903 mac_idx, band); 904 } 905 } 906 } 907 908 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 909 { 910 struct wiphy *wiphy; 911 912 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 913 if (!wiphy) 914 return NULL; 915 916 set_wiphy_dev(wiphy, bus->dev); 917 918 return wiphy; 919 } 920 921 static int 922 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 923 { 924 struct ieee80211_iface_combination *if_comb; 925 size_t n_if_comb; 926 u16 interface_modes = 0; 927 size_t i, j; 928 929 if_comb = mac_info->if_comb; 930 n_if_comb = mac_info->n_if_comb; 931 932 if (!if_comb || !n_if_comb) 933 return -ENOENT; 934 935 for (i = 0; i < n_if_comb; i++) { 936 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 937 938 for (j = 0; j < if_comb[i].n_limits; j++) 939 interface_modes |= if_comb[i].limits[j].types; 940 } 941 942 wiphy->iface_combinations = if_comb; 943 wiphy->n_iface_combinations = n_if_comb; 944 wiphy->interface_modes = interface_modes; 945 946 return 0; 947 } 948 949 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 950 { 951 struct wiphy *wiphy = priv_to_wiphy(mac); 952 int ret; 953 954 if (!wiphy) { 955 pr_err("invalid wiphy pointer\n"); 956 return -EFAULT; 957 } 958 959 wiphy->frag_threshold = mac->macinfo.frag_thr; 960 wiphy->rts_threshold = mac->macinfo.rts_thr; 961 wiphy->retry_short = mac->macinfo.sretry_limit; 962 wiphy->retry_long = mac->macinfo.lretry_limit; 963 wiphy->coverage_class = mac->macinfo.coverage_class; 964 965 wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH; 966 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 967 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 968 wiphy->max_remain_on_channel_duration = 5000; 969 wiphy->max_acl_mac_addrs = mac->macinfo.max_acl_mac_addrs; 970 wiphy->max_num_csa_counters = 2; 971 972 ret = qtnf_wiphy_setup_if_comb(wiphy, &mac->macinfo); 973 if (ret) 974 goto out; 975 976 /* Initialize cipher suits */ 977 wiphy->cipher_suites = qtnf_cipher_suites; 978 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 979 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 980 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 981 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 982 WIPHY_FLAG_AP_UAPSD | 983 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 984 985 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 986 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 987 988 wiphy->available_antennas_tx = mac->macinfo.num_tx_chain; 989 wiphy->available_antennas_rx = mac->macinfo.num_rx_chain; 990 991 wiphy->max_ap_assoc_sta = mac->macinfo.max_ap_assoc_sta; 992 wiphy->ht_capa_mod_mask = &mac->macinfo.ht_cap_mod_mask; 993 wiphy->vht_capa_mod_mask = &mac->macinfo.vht_cap_mod_mask; 994 995 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 996 997 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 998 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 999 1000 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1001 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1002 REGULATORY_CUSTOM_REG; 1003 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1004 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1005 } else { 1006 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1007 } 1008 1009 strlcpy(wiphy->fw_version, hw_info->fw_version, 1010 sizeof(wiphy->fw_version)); 1011 wiphy->hw_version = hw_info->hw_version; 1012 1013 ret = wiphy_register(wiphy); 1014 if (ret < 0) 1015 goto out; 1016 1017 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1018 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1019 else if (isalpha(hw_info->rd->alpha2[0]) && 1020 isalpha(hw_info->rd->alpha2[1])) 1021 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1022 1023 out: 1024 return ret; 1025 } 1026 1027 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1028 { 1029 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1030 1031 if (qtnf_cmd_send_updown_intf(vif, up)) 1032 pr_err("failed to send up/down command to FW\n"); 1033 } 1034 1035 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1036 { 1037 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1038 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1039 1040 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1041 switch (vif->sta_state) { 1042 case QTNF_STA_DISCONNECTED: 1043 break; 1044 case QTNF_STA_CONNECTING: 1045 cfg80211_connect_result(vif->netdev, 1046 vif->bssid, NULL, 0, 1047 NULL, 0, 1048 WLAN_STATUS_UNSPECIFIED_FAILURE, 1049 GFP_KERNEL); 1050 qtnf_disconnect(vif->wdev.wiphy, ndev, 1051 WLAN_REASON_DEAUTH_LEAVING); 1052 break; 1053 case QTNF_STA_CONNECTED: 1054 cfg80211_disconnected(vif->netdev, 1055 WLAN_REASON_DEAUTH_LEAVING, 1056 NULL, 0, 1, GFP_KERNEL); 1057 qtnf_disconnect(vif->wdev.wiphy, ndev, 1058 WLAN_REASON_DEAUTH_LEAVING); 1059 break; 1060 } 1061 1062 vif->sta_state = QTNF_STA_DISCONNECTED; 1063 } 1064 1065 qtnf_scan_done(mac, true); 1066 } 1067 1068 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1069 { 1070 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1071 switch (vif->sta_state) { 1072 case QTNF_STA_CONNECTING: 1073 cfg80211_connect_result(vif->netdev, 1074 vif->bssid, NULL, 0, 1075 NULL, 0, 1076 WLAN_STATUS_UNSPECIFIED_FAILURE, 1077 GFP_KERNEL); 1078 break; 1079 case QTNF_STA_CONNECTED: 1080 cfg80211_disconnected(vif->netdev, 1081 WLAN_REASON_DEAUTH_LEAVING, 1082 NULL, 0, 1, GFP_KERNEL); 1083 break; 1084 case QTNF_STA_DISCONNECTED: 1085 break; 1086 } 1087 } 1088 1089 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1090 vif->sta_state = QTNF_STA_DISCONNECTED; 1091 } 1092 1093 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1094 { 1095 switch (band->band) { 1096 case NL80211_BAND_2GHZ: 1097 band->bitrates = qtnf_rates_2g; 1098 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1099 break; 1100 case NL80211_BAND_5GHZ: 1101 band->bitrates = qtnf_rates_5g; 1102 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1103 break; 1104 default: 1105 band->bitrates = NULL; 1106 band->n_bitrates = 0; 1107 break; 1108 } 1109 } 1110