1 // SPDX-License-Identifier: GPL-2.0+ 2 /* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ 3 4 #include <linux/kernel.h> 5 #include <linux/etherdevice.h> 6 #include <linux/vmalloc.h> 7 #include <linux/ieee80211.h> 8 #include <net/cfg80211.h> 9 #include <net/netlink.h> 10 11 #include "cfg80211.h" 12 #include "commands.h" 13 #include "core.h" 14 #include "util.h" 15 #include "bus.h" 16 17 /* Supported rates to be advertised to the cfg80211 */ 18 static struct ieee80211_rate qtnf_rates_2g[] = { 19 {.bitrate = 10, .hw_value = 2, }, 20 {.bitrate = 20, .hw_value = 4, }, 21 {.bitrate = 55, .hw_value = 11, }, 22 {.bitrate = 110, .hw_value = 22, }, 23 {.bitrate = 60, .hw_value = 12, }, 24 {.bitrate = 90, .hw_value = 18, }, 25 {.bitrate = 120, .hw_value = 24, }, 26 {.bitrate = 180, .hw_value = 36, }, 27 {.bitrate = 240, .hw_value = 48, }, 28 {.bitrate = 360, .hw_value = 72, }, 29 {.bitrate = 480, .hw_value = 96, }, 30 {.bitrate = 540, .hw_value = 108, }, 31 }; 32 33 /* Supported rates to be advertised to the cfg80211 */ 34 static struct ieee80211_rate qtnf_rates_5g[] = { 35 {.bitrate = 60, .hw_value = 12, }, 36 {.bitrate = 90, .hw_value = 18, }, 37 {.bitrate = 120, .hw_value = 24, }, 38 {.bitrate = 180, .hw_value = 36, }, 39 {.bitrate = 240, .hw_value = 48, }, 40 {.bitrate = 360, .hw_value = 72, }, 41 {.bitrate = 480, .hw_value = 96, }, 42 {.bitrate = 540, .hw_value = 108, }, 43 }; 44 45 /* Supported crypto cipher suits to be advertised to cfg80211 */ 46 static const u32 qtnf_cipher_suites[] = { 47 WLAN_CIPHER_SUITE_TKIP, 48 WLAN_CIPHER_SUITE_CCMP, 49 WLAN_CIPHER_SUITE_AES_CMAC, 50 }; 51 52 /* Supported mgmt frame types to be advertised to cfg80211 */ 53 static const struct ieee80211_txrx_stypes 54 qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = { 55 [NL80211_IFTYPE_STATION] = { 56 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 57 BIT(IEEE80211_STYPE_AUTH >> 4), 58 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 59 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 60 BIT(IEEE80211_STYPE_AUTH >> 4), 61 }, 62 [NL80211_IFTYPE_AP] = { 63 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 64 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 65 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 66 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 67 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 68 BIT(IEEE80211_STYPE_AUTH >> 4), 69 }, 70 }; 71 72 static int 73 qtnf_validate_iface_combinations(struct wiphy *wiphy, 74 struct qtnf_vif *change_vif, 75 enum nl80211_iftype new_type) 76 { 77 struct qtnf_wmac *mac; 78 struct qtnf_vif *vif; 79 int i; 80 int ret = 0; 81 struct iface_combination_params params = { 82 .num_different_channels = 1, 83 }; 84 85 mac = wiphy_priv(wiphy); 86 if (!mac) 87 return -EFAULT; 88 89 for (i = 0; i < QTNF_MAX_INTF; i++) { 90 vif = &mac->iflist[i]; 91 if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) 92 params.iftype_num[vif->wdev.iftype]++; 93 } 94 95 if (change_vif) { 96 params.iftype_num[new_type]++; 97 params.iftype_num[change_vif->wdev.iftype]--; 98 } else { 99 params.iftype_num[new_type]++; 100 } 101 102 ret = cfg80211_check_combinations(wiphy, ¶ms); 103 104 return ret; 105 } 106 107 static int 108 qtnf_change_virtual_intf(struct wiphy *wiphy, 109 struct net_device *dev, 110 enum nl80211_iftype type, 111 struct vif_params *params) 112 { 113 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 114 u8 *mac_addr = NULL; 115 int use4addr = 0; 116 int ret; 117 118 ret = qtnf_validate_iface_combinations(wiphy, vif, type); 119 if (ret) { 120 pr_err("VIF%u.%u combination check: failed to set type %d\n", 121 vif->mac->macid, vif->vifid, type); 122 return ret; 123 } 124 125 if (params) { 126 mac_addr = params->macaddr; 127 use4addr = params->use_4addr; 128 } 129 130 qtnf_scan_done(vif->mac, true); 131 132 ret = qtnf_cmd_send_change_intf_type(vif, type, use4addr, mac_addr); 133 if (ret) { 134 pr_err("VIF%u.%u: failed to change type to %d\n", 135 vif->mac->macid, vif->vifid, type); 136 return ret; 137 } 138 139 vif->wdev.iftype = type; 140 return 0; 141 } 142 143 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 144 { 145 struct net_device *netdev = wdev->netdev; 146 struct qtnf_vif *vif; 147 148 if (WARN_ON(!netdev)) 149 return -EFAULT; 150 151 vif = qtnf_netdev_get_priv(wdev->netdev); 152 153 qtnf_scan_done(vif->mac, true); 154 155 /* Stop data */ 156 netif_tx_stop_all_queues(netdev); 157 if (netif_carrier_ok(netdev)) 158 netif_carrier_off(netdev); 159 160 if (netdev->reg_state == NETREG_REGISTERED) 161 unregister_netdevice(netdev); 162 163 if (qtnf_cmd_send_del_intf(vif)) 164 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 165 vif->vifid); 166 167 vif->netdev->ieee80211_ptr = NULL; 168 vif->netdev = NULL; 169 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 170 171 return 0; 172 } 173 174 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 175 const char *name, 176 unsigned char name_assign_t, 177 enum nl80211_iftype type, 178 struct vif_params *params) 179 { 180 struct qtnf_wmac *mac; 181 struct qtnf_vif *vif; 182 u8 *mac_addr = NULL; 183 int use4addr = 0; 184 int ret; 185 186 mac = wiphy_priv(wiphy); 187 188 if (!mac) 189 return ERR_PTR(-EFAULT); 190 191 ret = qtnf_validate_iface_combinations(wiphy, NULL, type); 192 if (ret) { 193 pr_err("MAC%u invalid combination: failed to add type %d\n", 194 mac->macid, type); 195 return ERR_PTR(ret); 196 } 197 198 switch (type) { 199 case NL80211_IFTYPE_STATION: 200 case NL80211_IFTYPE_AP: 201 vif = qtnf_mac_get_free_vif(mac); 202 if (!vif) { 203 pr_err("MAC%u: no free VIF available\n", mac->macid); 204 return ERR_PTR(-EFAULT); 205 } 206 207 eth_zero_addr(vif->mac_addr); 208 eth_zero_addr(vif->bssid); 209 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 210 memset(&vif->wdev, 0, sizeof(vif->wdev)); 211 vif->wdev.wiphy = wiphy; 212 vif->wdev.iftype = type; 213 break; 214 default: 215 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 216 return ERR_PTR(-ENOTSUPP); 217 } 218 219 if (params) { 220 mac_addr = params->macaddr; 221 use4addr = params->use_4addr; 222 } 223 224 ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr); 225 if (ret) { 226 pr_err("VIF%u.%u: failed to add VIF %pM\n", 227 mac->macid, vif->vifid, mac_addr); 228 goto err_cmd; 229 } 230 231 if (!is_valid_ether_addr(vif->mac_addr)) { 232 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 233 mac->macid, vif->vifid, vif->mac_addr); 234 ret = -EINVAL; 235 goto err_mac; 236 } 237 238 ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); 239 if (ret) { 240 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 241 vif->vifid); 242 goto err_net; 243 } 244 245 vif->wdev.netdev = vif->netdev; 246 return &vif->wdev; 247 248 err_net: 249 vif->netdev = NULL; 250 err_mac: 251 qtnf_cmd_send_del_intf(vif); 252 err_cmd: 253 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 254 255 return ERR_PTR(ret); 256 } 257 258 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 259 const struct cfg80211_beacon_data *info) 260 { 261 int ret = 0; 262 263 if (!info->beacon_ies || !info->beacon_ies_len) { 264 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 265 NULL, 0); 266 } else { 267 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 268 info->beacon_ies, 269 info->beacon_ies_len); 270 } 271 272 if (ret) 273 goto out; 274 275 if (!info->proberesp_ies || !info->proberesp_ies_len) { 276 ret = qtnf_cmd_send_mgmt_set_appie(vif, 277 QLINK_IE_SET_PROBE_RESP_IES, 278 NULL, 0); 279 } else { 280 ret = qtnf_cmd_send_mgmt_set_appie(vif, 281 QLINK_IE_SET_PROBE_RESP_IES, 282 info->proberesp_ies, 283 info->proberesp_ies_len); 284 } 285 286 if (ret) 287 goto out; 288 289 if (!info->assocresp_ies || !info->assocresp_ies_len) { 290 ret = qtnf_cmd_send_mgmt_set_appie(vif, 291 QLINK_IE_SET_ASSOC_RESP, 292 NULL, 0); 293 } else { 294 ret = qtnf_cmd_send_mgmt_set_appie(vif, 295 QLINK_IE_SET_ASSOC_RESP, 296 info->assocresp_ies, 297 info->assocresp_ies_len); 298 } 299 300 out: 301 return ret; 302 } 303 304 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 305 struct cfg80211_beacon_data *info) 306 { 307 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 308 309 return qtnf_mgmt_set_appie(vif, info); 310 } 311 312 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 313 struct cfg80211_ap_settings *settings) 314 { 315 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 316 int ret; 317 318 ret = qtnf_cmd_send_start_ap(vif, settings); 319 if (ret) 320 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 321 vif->vifid); 322 323 return ret; 324 } 325 326 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 327 { 328 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 329 int ret; 330 331 qtnf_scan_done(vif->mac, true); 332 333 ret = qtnf_cmd_send_stop_ap(vif); 334 if (ret) 335 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 336 vif->mac->macid, vif->vifid); 337 338 netif_carrier_off(vif->netdev); 339 340 return ret; 341 } 342 343 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 344 { 345 struct qtnf_wmac *mac = wiphy_priv(wiphy); 346 struct qtnf_vif *vif; 347 int ret; 348 349 vif = qtnf_mac_get_base_vif(mac); 350 if (!vif) { 351 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 352 return -EFAULT; 353 } 354 355 ret = qtnf_cmd_send_update_phy_params(mac, changed); 356 if (ret) 357 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 358 359 return ret; 360 } 361 362 static void 363 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 364 u16 frame_type, bool reg) 365 { 366 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 367 u16 mgmt_type; 368 u16 new_mask; 369 u16 qlink_frame_type = 0; 370 371 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 372 373 if (reg) 374 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 375 else 376 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 377 378 if (new_mask == vif->mgmt_frames_bitmask) 379 return; 380 381 switch (frame_type & IEEE80211_FCTL_STYPE) { 382 case IEEE80211_STYPE_REASSOC_REQ: 383 case IEEE80211_STYPE_ASSOC_REQ: 384 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 385 break; 386 case IEEE80211_STYPE_AUTH: 387 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 388 break; 389 case IEEE80211_STYPE_PROBE_REQ: 390 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 391 break; 392 case IEEE80211_STYPE_ACTION: 393 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 394 break; 395 default: 396 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 397 vif->mac->macid, vif->vifid, 398 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 399 return; 400 } 401 402 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 403 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 404 vif->mac->macid, vif->vifid, reg ? "" : "un", 405 frame_type); 406 return; 407 } 408 409 vif->mgmt_frames_bitmask = new_mask; 410 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 411 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 412 } 413 414 static int 415 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 416 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 417 { 418 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 419 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 420 u32 short_cookie = prandom_u32(); 421 u16 flags = 0; 422 u16 freq; 423 424 *cookie = short_cookie; 425 426 if (params->offchan) 427 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 428 429 if (params->no_cck) 430 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 431 432 if (params->dont_wait_for_ack) 433 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 434 435 /* If channel is not specified, pass "freq = 0" to tell device 436 * firmware to use current channel. 437 */ 438 if (params->chan) 439 freq = params->chan->center_freq; 440 else 441 freq = 0; 442 443 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 444 wdev->netdev->name, freq, 445 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 446 params->len, short_cookie, flags); 447 448 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 449 freq, 450 params->buf, params->len); 451 } 452 453 static int 454 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 455 const u8 *mac, struct station_info *sinfo) 456 { 457 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 458 459 sinfo->generation = vif->generation; 460 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 461 } 462 463 static int 464 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 465 int idx, u8 *mac, struct station_info *sinfo) 466 { 467 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 468 const struct qtnf_sta_node *sta_node; 469 int ret; 470 471 switch (vif->wdev.iftype) { 472 case NL80211_IFTYPE_STATION: 473 if (idx != 0 || !vif->wdev.current_bss) 474 return -ENOENT; 475 476 ether_addr_copy(mac, vif->bssid); 477 break; 478 case NL80211_IFTYPE_AP: 479 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 480 if (unlikely(!sta_node)) 481 return -ENOENT; 482 483 ether_addr_copy(mac, sta_node->mac_addr); 484 break; 485 default: 486 return -ENOTSUPP; 487 } 488 489 ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); 490 491 if (vif->wdev.iftype == NL80211_IFTYPE_AP) { 492 if (ret == -ENOENT) { 493 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 494 sinfo->filled = 0; 495 } 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 if (ret == -ENOENT) { 528 pr_debug("VIF%u.%u: key index %d out of bounds\n", 529 vif->mac->macid, vif->vifid, key_index); 530 } else { 531 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 532 vif->mac->macid, vif->vifid, 533 key_index, pairwise); 534 } 535 } 536 537 return ret; 538 } 539 540 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 541 u8 key_index, bool unicast, bool multicast) 542 { 543 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 544 int ret; 545 546 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 547 if (ret) 548 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 549 vif->mac->macid, vif->vifid, key_index, unicast, 550 multicast); 551 552 return ret; 553 } 554 555 static int 556 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 557 u8 key_index) 558 { 559 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 560 int ret; 561 562 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 563 if (ret) 564 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 565 vif->mac->macid, vif->vifid, key_index); 566 567 return ret; 568 } 569 570 static int 571 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 572 const u8 *mac, struct station_parameters *params) 573 { 574 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 575 int ret; 576 577 ret = qtnf_cmd_send_change_sta(vif, mac, params); 578 if (ret) 579 pr_err("VIF%u.%u: failed to change STA %pM\n", 580 vif->mac->macid, vif->vifid, mac); 581 582 return ret; 583 } 584 585 static int 586 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 587 struct station_del_parameters *params) 588 { 589 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 590 int ret; 591 592 if (params->mac && 593 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 594 !is_broadcast_ether_addr(params->mac) && 595 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 596 return 0; 597 598 ret = qtnf_cmd_send_del_sta(vif, params); 599 if (ret) 600 pr_err("VIF%u.%u: failed to delete STA %pM\n", 601 vif->mac->macid, vif->vifid, params->mac); 602 603 return ret; 604 } 605 606 static int 607 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 608 { 609 struct qtnf_wmac *mac = wiphy_priv(wiphy); 610 int ret; 611 612 cancel_delayed_work_sync(&mac->scan_timeout); 613 614 mac->scan_req = request; 615 616 ret = qtnf_cmd_send_scan(mac); 617 if (ret) { 618 pr_err("MAC%u: failed to start scan\n", mac->macid); 619 mac->scan_req = NULL; 620 goto out; 621 } 622 623 pr_debug("MAC%u: scan started\n", mac->macid); 624 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 625 QTNF_SCAN_TIMEOUT_SEC * HZ); 626 627 out: 628 return ret; 629 } 630 631 static int 632 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 633 struct cfg80211_connect_params *sme) 634 { 635 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 636 int ret; 637 638 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 639 return -EOPNOTSUPP; 640 641 if (sme->auth_type == NL80211_AUTHTYPE_SAE && 642 !(sme->flags & CONNECT_REQ_EXTERNAL_AUTH_SUPPORT)) { 643 pr_err("can not offload authentication to userspace\n"); 644 return -EOPNOTSUPP; 645 } 646 647 if (sme->bssid) 648 ether_addr_copy(vif->bssid, sme->bssid); 649 else 650 eth_zero_addr(vif->bssid); 651 652 ret = qtnf_cmd_send_connect(vif, sme); 653 if (ret) { 654 pr_err("VIF%u.%u: failed to connect\n", 655 vif->mac->macid, vif->vifid); 656 goto out; 657 } 658 659 out: 660 return ret; 661 } 662 663 static int 664 qtnf_external_auth(struct wiphy *wiphy, struct net_device *dev, 665 struct cfg80211_external_auth_params *auth) 666 { 667 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 668 int ret; 669 670 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 671 return -EOPNOTSUPP; 672 673 if (!ether_addr_equal(vif->bssid, auth->bssid)) 674 pr_warn("unexpected bssid: %pM", auth->bssid); 675 676 ret = qtnf_cmd_send_external_auth(vif, auth); 677 if (ret) { 678 pr_err("VIF%u.%u: failed to report external auth\n", 679 vif->mac->macid, vif->vifid); 680 goto out; 681 } 682 683 out: 684 return ret; 685 } 686 687 static int 688 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 689 u16 reason_code) 690 { 691 struct qtnf_wmac *mac = wiphy_priv(wiphy); 692 struct qtnf_vif *vif; 693 int ret = 0; 694 695 vif = qtnf_mac_get_base_vif(mac); 696 if (!vif) { 697 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 698 return -EFAULT; 699 } 700 701 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 702 ret = -EOPNOTSUPP; 703 goto out; 704 } 705 706 ret = qtnf_cmd_send_disconnect(vif, reason_code); 707 if (ret) 708 pr_err("VIF%u.%u: failed to disconnect\n", 709 mac->macid, vif->vifid); 710 711 if (vif->wdev.current_bss) { 712 netif_carrier_off(vif->netdev); 713 cfg80211_disconnected(vif->netdev, reason_code, 714 NULL, 0, true, GFP_KERNEL); 715 } 716 717 out: 718 return ret; 719 } 720 721 static int 722 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 723 int idx, struct survey_info *survey) 724 { 725 struct qtnf_wmac *mac = wiphy_priv(wiphy); 726 struct wireless_dev *wdev = dev->ieee80211_ptr; 727 struct ieee80211_supported_band *sband; 728 const struct cfg80211_chan_def *chandef = &wdev->chandef; 729 struct ieee80211_channel *chan; 730 struct qtnf_chan_stats stats; 731 int ret; 732 733 sband = wiphy->bands[NL80211_BAND_2GHZ]; 734 if (sband && idx >= sband->n_channels) { 735 idx -= sband->n_channels; 736 sband = NULL; 737 } 738 739 if (!sband) 740 sband = wiphy->bands[NL80211_BAND_5GHZ]; 741 742 if (!sband || idx >= sband->n_channels) 743 return -ENOENT; 744 745 chan = &sband->channels[idx]; 746 memset(&stats, 0, sizeof(stats)); 747 748 survey->channel = chan; 749 survey->filled = 0x0; 750 751 if (chandef->chan) { 752 if (chan->hw_value == chandef->chan->hw_value) 753 survey->filled = SURVEY_INFO_IN_USE; 754 } 755 756 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 757 switch (ret) { 758 case 0: 759 if (unlikely(stats.chan_num != chan->hw_value)) { 760 pr_err("received stats for channel %d instead of %d\n", 761 stats.chan_num, chan->hw_value); 762 ret = -EINVAL; 763 break; 764 } 765 766 survey->filled |= SURVEY_INFO_TIME | 767 SURVEY_INFO_TIME_SCAN | 768 SURVEY_INFO_TIME_BUSY | 769 SURVEY_INFO_TIME_RX | 770 SURVEY_INFO_TIME_TX | 771 SURVEY_INFO_NOISE_DBM; 772 773 survey->time_scan = stats.cca_try; 774 survey->time = stats.cca_try; 775 survey->time_tx = stats.cca_tx; 776 survey->time_rx = stats.cca_rx; 777 survey->time_busy = stats.cca_busy; 778 survey->noise = stats.chan_noise; 779 break; 780 case -ENOENT: 781 pr_debug("no stats for channel %u\n", chan->hw_value); 782 ret = 0; 783 break; 784 default: 785 pr_debug("failed to get chan(%d) stats from card\n", 786 chan->hw_value); 787 break; 788 } 789 790 return ret; 791 } 792 793 static int 794 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 795 struct cfg80211_chan_def *chandef) 796 { 797 struct net_device *ndev = wdev->netdev; 798 struct qtnf_vif *vif; 799 int ret; 800 801 if (!ndev) 802 return -ENODEV; 803 804 vif = qtnf_netdev_get_priv(wdev->netdev); 805 806 ret = qtnf_cmd_get_channel(vif, chandef); 807 if (ret) { 808 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 809 ret = -ENODATA; 810 goto out; 811 } 812 813 if (!cfg80211_chandef_valid(chandef)) { 814 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 815 ndev->name, chandef->chan->center_freq, 816 chandef->center_freq1, chandef->center_freq2, 817 chandef->width); 818 ret = -ENODATA; 819 goto out; 820 } 821 822 out: 823 return ret; 824 } 825 826 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 827 struct cfg80211_csa_settings *params) 828 { 829 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 830 int ret; 831 832 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 833 params->chandef.chan->hw_value, params->count, 834 params->radar_required, params->block_tx); 835 836 if (!cfg80211_chandef_valid(¶ms->chandef)) { 837 pr_err("%s: invalid channel\n", dev->name); 838 return -EINVAL; 839 } 840 841 ret = qtnf_cmd_send_chan_switch(vif, params); 842 if (ret) 843 pr_warn("%s: failed to switch to channel (%u)\n", 844 dev->name, params->chandef.chan->hw_value); 845 846 return ret; 847 } 848 849 static int qtnf_start_radar_detection(struct wiphy *wiphy, 850 struct net_device *ndev, 851 struct cfg80211_chan_def *chandef, 852 u32 cac_time_ms) 853 { 854 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 855 int ret; 856 857 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 858 return -ENOTSUPP; 859 860 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 861 if (ret) 862 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 863 864 return ret; 865 } 866 867 static int qtnf_set_mac_acl(struct wiphy *wiphy, 868 struct net_device *dev, 869 const struct cfg80211_acl_data *params) 870 { 871 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 872 int ret; 873 874 ret = qtnf_cmd_set_mac_acl(vif, params); 875 if (ret) 876 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 877 878 return ret; 879 } 880 881 static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 882 bool enabled, int timeout) 883 { 884 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 885 int ret; 886 887 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : 888 QLINK_PM_OFF, timeout); 889 if (ret) 890 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); 891 892 return ret; 893 } 894 895 #ifdef CONFIG_PM 896 static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) 897 { 898 struct qtnf_wmac *mac = wiphy_priv(wiphy); 899 struct qtnf_vif *vif; 900 int ret = 0; 901 902 vif = qtnf_mac_get_base_vif(mac); 903 if (!vif) { 904 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 905 ret = -EFAULT; 906 goto exit; 907 } 908 909 if (!wowlan) { 910 pr_debug("WoWLAN triggers are not enabled\n"); 911 qtnf_virtual_intf_cleanup(vif->netdev); 912 goto exit; 913 } 914 915 qtnf_scan_done(vif->mac, true); 916 917 ret = qtnf_cmd_send_wowlan_set(vif, wowlan); 918 if (ret) { 919 pr_err("MAC%u: failed to set WoWLAN triggers\n", 920 mac->macid); 921 goto exit; 922 } 923 924 exit: 925 return ret; 926 } 927 928 static int qtnf_resume(struct wiphy *wiphy) 929 { 930 struct qtnf_wmac *mac = wiphy_priv(wiphy); 931 struct qtnf_vif *vif; 932 int ret = 0; 933 934 vif = qtnf_mac_get_base_vif(mac); 935 if (!vif) { 936 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 937 ret = -EFAULT; 938 goto exit; 939 } 940 941 ret = qtnf_cmd_send_wowlan_set(vif, NULL); 942 if (ret) { 943 pr_err("MAC%u: failed to reset WoWLAN triggers\n", 944 mac->macid); 945 goto exit; 946 } 947 948 exit: 949 return ret; 950 } 951 952 static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) 953 { 954 struct qtnf_wmac *mac = wiphy_priv(wiphy); 955 struct qtnf_bus *bus = mac->bus; 956 957 device_set_wakeup_enable(bus->dev, enabled); 958 } 959 #endif 960 961 static struct cfg80211_ops qtn_cfg80211_ops = { 962 .add_virtual_intf = qtnf_add_virtual_intf, 963 .change_virtual_intf = qtnf_change_virtual_intf, 964 .del_virtual_intf = qtnf_del_virtual_intf, 965 .start_ap = qtnf_start_ap, 966 .change_beacon = qtnf_change_beacon, 967 .stop_ap = qtnf_stop_ap, 968 .set_wiphy_params = qtnf_set_wiphy_params, 969 .mgmt_frame_register = qtnf_mgmt_frame_register, 970 .mgmt_tx = qtnf_mgmt_tx, 971 .change_station = qtnf_change_station, 972 .del_station = qtnf_del_station, 973 .get_station = qtnf_get_station, 974 .dump_station = qtnf_dump_station, 975 .add_key = qtnf_add_key, 976 .del_key = qtnf_del_key, 977 .set_default_key = qtnf_set_default_key, 978 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 979 .scan = qtnf_scan, 980 .connect = qtnf_connect, 981 .external_auth = qtnf_external_auth, 982 .disconnect = qtnf_disconnect, 983 .dump_survey = qtnf_dump_survey, 984 .get_channel = qtnf_get_channel, 985 .channel_switch = qtnf_channel_switch, 986 .start_radar_detection = qtnf_start_radar_detection, 987 .set_mac_acl = qtnf_set_mac_acl, 988 .set_power_mgmt = qtnf_set_power_mgmt, 989 #ifdef CONFIG_PM 990 .suspend = qtnf_suspend, 991 .resume = qtnf_resume, 992 .set_wakeup = qtnf_set_wakeup, 993 #endif 994 }; 995 996 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 997 struct regulatory_request *req) 998 { 999 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 1000 struct qtnf_bus *bus = mac->bus; 1001 struct wiphy *wiphy; 1002 unsigned int mac_idx; 1003 enum nl80211_band band; 1004 int ret; 1005 1006 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 1007 req->alpha2[0], req->alpha2[1]); 1008 1009 ret = qtnf_cmd_reg_notify(bus, req); 1010 if (ret) { 1011 if (ret == -EOPNOTSUPP) { 1012 pr_warn("reg update not supported\n"); 1013 } else if (ret == -EALREADY) { 1014 pr_info("regulatory domain is already set to %c%c", 1015 req->alpha2[0], req->alpha2[1]); 1016 } else { 1017 pr_err("failed to update reg domain to %c%c\n", 1018 req->alpha2[0], req->alpha2[1]); 1019 } 1020 1021 return; 1022 } 1023 1024 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 1025 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 1026 continue; 1027 1028 mac = bus->mac[mac_idx]; 1029 if (!mac) 1030 continue; 1031 1032 wiphy = priv_to_wiphy(mac); 1033 1034 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 1035 if (!wiphy->bands[band]) 1036 continue; 1037 1038 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 1039 if (ret) 1040 pr_err("failed to get chan info for mac %u band %u\n", 1041 mac_idx, band); 1042 } 1043 } 1044 } 1045 1046 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 1047 { 1048 struct wiphy *wiphy; 1049 1050 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1051 qtn_cfg80211_ops.start_radar_detection = NULL; 1052 1053 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT)) 1054 qtn_cfg80211_ops.set_power_mgmt = NULL; 1055 1056 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 1057 if (!wiphy) 1058 return NULL; 1059 1060 set_wiphy_dev(wiphy, bus->dev); 1061 1062 return wiphy; 1063 } 1064 1065 static int 1066 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 1067 { 1068 struct ieee80211_iface_combination *if_comb; 1069 size_t n_if_comb; 1070 u16 interface_modes = 0; 1071 size_t i, j; 1072 1073 if_comb = mac_info->if_comb; 1074 n_if_comb = mac_info->n_if_comb; 1075 1076 if (!if_comb || !n_if_comb) 1077 return -ENOENT; 1078 1079 for (i = 0; i < n_if_comb; i++) { 1080 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 1081 1082 for (j = 0; j < if_comb[i].n_limits; j++) 1083 interface_modes |= if_comb[i].limits[j].types; 1084 } 1085 1086 wiphy->iface_combinations = if_comb; 1087 wiphy->n_iface_combinations = n_if_comb; 1088 wiphy->interface_modes = interface_modes; 1089 1090 return 0; 1091 } 1092 1093 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1094 { 1095 struct wiphy *wiphy = priv_to_wiphy(mac); 1096 struct qtnf_mac_info *macinfo = &mac->macinfo; 1097 int ret; 1098 1099 if (!wiphy) { 1100 pr_err("invalid wiphy pointer\n"); 1101 return -EFAULT; 1102 } 1103 1104 wiphy->frag_threshold = macinfo->frag_thr; 1105 wiphy->rts_threshold = macinfo->rts_thr; 1106 wiphy->retry_short = macinfo->sretry_limit; 1107 wiphy->retry_long = macinfo->lretry_limit; 1108 wiphy->coverage_class = macinfo->coverage_class; 1109 1110 wiphy->max_scan_ssids = 1111 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1; 1112 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1113 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1114 wiphy->max_remain_on_channel_duration = 5000; 1115 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 1116 wiphy->max_num_csa_counters = 2; 1117 1118 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 1119 if (ret) 1120 goto out; 1121 1122 /* Initialize cipher suits */ 1123 wiphy->cipher_suites = qtnf_cipher_suites; 1124 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1125 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1126 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1127 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1128 WIPHY_FLAG_AP_UAPSD | 1129 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 1130 WIPHY_FLAG_4ADDR_STATION; 1131 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 1132 1133 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1134 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1135 1136 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL) 1137 wiphy_ext_feature_set(wiphy, 1138 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 1139 1140 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1141 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1142 1143 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1144 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1145 1146 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1147 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1148 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1149 1150 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1151 1152 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1153 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1154 1155 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR) 1156 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 1157 1158 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN)) 1159 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; 1160 1161 if (hw_info->hw_capab & QLINK_HW_CAPAB_SAE) 1162 wiphy->features |= NL80211_FEATURE_SAE; 1163 1164 #ifdef CONFIG_PM 1165 if (macinfo->wowlan) 1166 wiphy->wowlan = macinfo->wowlan; 1167 #endif 1168 1169 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1170 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1171 REGULATORY_CUSTOM_REG; 1172 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1173 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1174 } else { 1175 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1176 } 1177 1178 if (mac->macinfo.extended_capabilities_len) { 1179 wiphy->extended_capabilities = 1180 mac->macinfo.extended_capabilities; 1181 wiphy->extended_capabilities_mask = 1182 mac->macinfo.extended_capabilities_mask; 1183 wiphy->extended_capabilities_len = 1184 mac->macinfo.extended_capabilities_len; 1185 } 1186 1187 strlcpy(wiphy->fw_version, hw_info->fw_version, 1188 sizeof(wiphy->fw_version)); 1189 wiphy->hw_version = hw_info->hw_version; 1190 1191 ret = wiphy_register(wiphy); 1192 if (ret < 0) 1193 goto out; 1194 1195 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1196 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1197 else if (isalpha(hw_info->rd->alpha2[0]) && 1198 isalpha(hw_info->rd->alpha2[1])) 1199 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1200 1201 out: 1202 return ret; 1203 } 1204 1205 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1206 { 1207 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1208 1209 if (qtnf_cmd_send_updown_intf(vif, up)) 1210 pr_err("failed to send %s command to VIF%u.%u\n", 1211 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); 1212 } 1213 1214 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1215 { 1216 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1217 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1218 1219 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1220 qtnf_disconnect(vif->wdev.wiphy, ndev, 1221 WLAN_REASON_DEAUTH_LEAVING); 1222 1223 qtnf_scan_done(mac, true); 1224 } 1225 1226 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1227 { 1228 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1229 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, 1230 NULL, 0, 1, GFP_KERNEL); 1231 1232 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1233 } 1234 1235 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1236 { 1237 switch (band->band) { 1238 case NL80211_BAND_2GHZ: 1239 band->bitrates = qtnf_rates_2g; 1240 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1241 break; 1242 case NL80211_BAND_5GHZ: 1243 band->bitrates = qtnf_rates_5g; 1244 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1245 break; 1246 default: 1247 band->bitrates = NULL; 1248 band->n_bitrates = 0; 1249 break; 1250 } 1251 } 1252