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 struct sk_buff *skb; 148 149 if (WARN_ON(!netdev)) 150 return -EFAULT; 151 152 vif = qtnf_netdev_get_priv(wdev->netdev); 153 154 qtnf_scan_done(vif->mac, true); 155 156 /* Stop data */ 157 netif_tx_stop_all_queues(netdev); 158 if (netif_carrier_ok(netdev)) 159 netif_carrier_off(netdev); 160 161 while ((skb = skb_dequeue(&vif->high_pri_tx_queue))) 162 dev_kfree_skb_any(skb); 163 164 cancel_work_sync(&vif->high_pri_tx_work); 165 166 if (netdev->reg_state == NETREG_REGISTERED) 167 unregister_netdevice(netdev); 168 169 if (qtnf_cmd_send_del_intf(vif)) 170 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 171 vif->vifid); 172 173 vif->netdev->ieee80211_ptr = NULL; 174 vif->netdev = NULL; 175 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 176 177 return 0; 178 } 179 180 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 181 const char *name, 182 unsigned char name_assign_t, 183 enum nl80211_iftype type, 184 struct vif_params *params) 185 { 186 struct qtnf_wmac *mac; 187 struct qtnf_vif *vif; 188 u8 *mac_addr = NULL; 189 int use4addr = 0; 190 int ret; 191 192 mac = wiphy_priv(wiphy); 193 194 if (!mac) 195 return ERR_PTR(-EFAULT); 196 197 ret = qtnf_validate_iface_combinations(wiphy, NULL, type); 198 if (ret) { 199 pr_err("MAC%u invalid combination: failed to add type %d\n", 200 mac->macid, type); 201 return ERR_PTR(ret); 202 } 203 204 switch (type) { 205 case NL80211_IFTYPE_STATION: 206 case NL80211_IFTYPE_AP: 207 vif = qtnf_mac_get_free_vif(mac); 208 if (!vif) { 209 pr_err("MAC%u: no free VIF available\n", mac->macid); 210 return ERR_PTR(-EFAULT); 211 } 212 213 eth_zero_addr(vif->mac_addr); 214 eth_zero_addr(vif->bssid); 215 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 216 memset(&vif->wdev, 0, sizeof(vif->wdev)); 217 vif->wdev.wiphy = wiphy; 218 vif->wdev.iftype = type; 219 break; 220 default: 221 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 222 return ERR_PTR(-ENOTSUPP); 223 } 224 225 if (params) { 226 mac_addr = params->macaddr; 227 use4addr = params->use_4addr; 228 } 229 230 ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr); 231 if (ret) { 232 pr_err("VIF%u.%u: failed to add VIF %pM\n", 233 mac->macid, vif->vifid, mac_addr); 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 ret = -EINVAL; 241 goto error_del_vif; 242 } 243 244 ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); 245 if (ret) { 246 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 247 vif->vifid); 248 goto error_del_vif; 249 } 250 251 vif->wdev.netdev = vif->netdev; 252 return &vif->wdev; 253 254 error_del_vif: 255 qtnf_cmd_send_del_intf(vif); 256 err_cmd: 257 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 258 259 return ERR_PTR(ret); 260 } 261 262 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 263 const struct cfg80211_beacon_data *info) 264 { 265 int ret = 0; 266 267 if (!info->beacon_ies || !info->beacon_ies_len) { 268 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 269 NULL, 0); 270 } else { 271 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 272 info->beacon_ies, 273 info->beacon_ies_len); 274 } 275 276 if (ret) 277 goto out; 278 279 if (!info->proberesp_ies || !info->proberesp_ies_len) { 280 ret = qtnf_cmd_send_mgmt_set_appie(vif, 281 QLINK_IE_SET_PROBE_RESP_IES, 282 NULL, 0); 283 } else { 284 ret = qtnf_cmd_send_mgmt_set_appie(vif, 285 QLINK_IE_SET_PROBE_RESP_IES, 286 info->proberesp_ies, 287 info->proberesp_ies_len); 288 } 289 290 if (ret) 291 goto out; 292 293 if (!info->assocresp_ies || !info->assocresp_ies_len) { 294 ret = qtnf_cmd_send_mgmt_set_appie(vif, 295 QLINK_IE_SET_ASSOC_RESP, 296 NULL, 0); 297 } else { 298 ret = qtnf_cmd_send_mgmt_set_appie(vif, 299 QLINK_IE_SET_ASSOC_RESP, 300 info->assocresp_ies, 301 info->assocresp_ies_len); 302 } 303 304 out: 305 return ret; 306 } 307 308 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 309 struct cfg80211_beacon_data *info) 310 { 311 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 312 313 return qtnf_mgmt_set_appie(vif, info); 314 } 315 316 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 317 struct cfg80211_ap_settings *settings) 318 { 319 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 320 int ret; 321 322 ret = qtnf_cmd_send_start_ap(vif, settings); 323 if (ret) 324 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 325 vif->vifid); 326 327 return ret; 328 } 329 330 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 331 { 332 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 333 int ret; 334 335 qtnf_scan_done(vif->mac, true); 336 337 ret = qtnf_cmd_send_stop_ap(vif); 338 if (ret) 339 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 340 vif->mac->macid, vif->vifid); 341 342 netif_carrier_off(vif->netdev); 343 344 return ret; 345 } 346 347 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 348 { 349 struct qtnf_wmac *mac = wiphy_priv(wiphy); 350 struct qtnf_vif *vif; 351 int ret; 352 353 vif = qtnf_mac_get_base_vif(mac); 354 if (!vif) { 355 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 356 return -EFAULT; 357 } 358 359 ret = qtnf_cmd_send_update_phy_params(mac, changed); 360 if (ret) 361 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 362 363 return ret; 364 } 365 366 static void 367 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 368 u16 frame_type, bool reg) 369 { 370 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 371 u16 mgmt_type; 372 u16 new_mask; 373 u16 qlink_frame_type = 0; 374 375 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 376 377 if (reg) 378 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 379 else 380 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 381 382 if (new_mask == vif->mgmt_frames_bitmask) 383 return; 384 385 switch (frame_type & IEEE80211_FCTL_STYPE) { 386 case IEEE80211_STYPE_REASSOC_REQ: 387 case IEEE80211_STYPE_ASSOC_REQ: 388 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 389 break; 390 case IEEE80211_STYPE_AUTH: 391 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 392 break; 393 case IEEE80211_STYPE_PROBE_REQ: 394 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 395 break; 396 case IEEE80211_STYPE_ACTION: 397 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 398 break; 399 default: 400 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 401 vif->mac->macid, vif->vifid, 402 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 403 return; 404 } 405 406 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 407 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 408 vif->mac->macid, vif->vifid, reg ? "" : "un", 409 frame_type); 410 return; 411 } 412 413 vif->mgmt_frames_bitmask = new_mask; 414 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 415 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 416 } 417 418 static int 419 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 420 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 421 { 422 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 423 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 424 u32 short_cookie = prandom_u32(); 425 u16 flags = 0; 426 u16 freq; 427 428 *cookie = short_cookie; 429 430 if (params->offchan) 431 flags |= QLINK_FRAME_TX_FLAG_OFFCHAN; 432 433 if (params->no_cck) 434 flags |= QLINK_FRAME_TX_FLAG_NO_CCK; 435 436 if (params->dont_wait_for_ack) 437 flags |= QLINK_FRAME_TX_FLAG_ACK_NOWAIT; 438 439 /* If channel is not specified, pass "freq = 0" to tell device 440 * firmware to use current channel. 441 */ 442 if (params->chan) 443 freq = params->chan->center_freq; 444 else 445 freq = 0; 446 447 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 448 wdev->netdev->name, freq, 449 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 450 params->len, short_cookie, flags); 451 452 return qtnf_cmd_send_frame(vif, short_cookie, flags, 453 freq, params->buf, params->len); 454 } 455 456 static int 457 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 458 const u8 *mac, struct station_info *sinfo) 459 { 460 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 461 462 sinfo->generation = vif->generation; 463 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 464 } 465 466 static int 467 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 468 int idx, u8 *mac, struct station_info *sinfo) 469 { 470 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 471 const struct qtnf_sta_node *sta_node; 472 int ret; 473 474 switch (vif->wdev.iftype) { 475 case NL80211_IFTYPE_STATION: 476 if (idx != 0 || !vif->wdev.current_bss) 477 return -ENOENT; 478 479 ether_addr_copy(mac, vif->bssid); 480 break; 481 case NL80211_IFTYPE_AP: 482 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 483 if (unlikely(!sta_node)) 484 return -ENOENT; 485 486 ether_addr_copy(mac, sta_node->mac_addr); 487 break; 488 default: 489 return -ENOTSUPP; 490 } 491 492 ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); 493 494 if (vif->wdev.iftype == NL80211_IFTYPE_AP) { 495 if (ret == -ENOENT) { 496 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 497 sinfo->filled = 0; 498 } 499 } 500 501 sinfo->generation = vif->generation; 502 503 return ret; 504 } 505 506 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 507 u8 key_index, bool pairwise, const u8 *mac_addr, 508 struct key_params *params) 509 { 510 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 511 int ret; 512 513 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 514 if (ret) 515 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 516 vif->mac->macid, vif->vifid, params->cipher, key_index, 517 pairwise); 518 519 return ret; 520 } 521 522 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 523 u8 key_index, bool pairwise, const u8 *mac_addr) 524 { 525 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 526 int ret; 527 528 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 529 if (ret) { 530 if (ret == -ENOENT) { 531 pr_debug("VIF%u.%u: key index %d out of bounds\n", 532 vif->mac->macid, vif->vifid, key_index); 533 } else { 534 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 535 vif->mac->macid, vif->vifid, 536 key_index, pairwise); 537 } 538 } 539 540 return ret; 541 } 542 543 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 544 u8 key_index, bool unicast, bool multicast) 545 { 546 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 547 int ret; 548 549 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 550 if (ret) 551 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 552 vif->mac->macid, vif->vifid, key_index, unicast, 553 multicast); 554 555 return ret; 556 } 557 558 static int 559 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 560 u8 key_index) 561 { 562 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 563 int ret; 564 565 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 566 if (ret) 567 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 568 vif->mac->macid, vif->vifid, key_index); 569 570 return ret; 571 } 572 573 static int 574 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 575 const u8 *mac, struct station_parameters *params) 576 { 577 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 578 int ret; 579 580 ret = qtnf_cmd_send_change_sta(vif, mac, params); 581 if (ret) 582 pr_err("VIF%u.%u: failed to change STA %pM\n", 583 vif->mac->macid, vif->vifid, mac); 584 585 return ret; 586 } 587 588 static int 589 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 590 struct station_del_parameters *params) 591 { 592 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 593 int ret; 594 595 if (params->mac && 596 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 597 !is_broadcast_ether_addr(params->mac) && 598 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 599 return 0; 600 601 ret = qtnf_cmd_send_del_sta(vif, params); 602 if (ret) 603 pr_err("VIF%u.%u: failed to delete STA %pM\n", 604 vif->mac->macid, vif->vifid, params->mac); 605 606 return ret; 607 } 608 609 static int 610 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 611 { 612 struct qtnf_wmac *mac = wiphy_priv(wiphy); 613 int ret; 614 615 cancel_delayed_work_sync(&mac->scan_timeout); 616 617 mac->scan_req = request; 618 619 ret = qtnf_cmd_send_scan(mac); 620 if (ret) { 621 pr_err("MAC%u: failed to start scan\n", mac->macid); 622 mac->scan_req = NULL; 623 goto out; 624 } 625 626 pr_debug("MAC%u: scan started\n", mac->macid); 627 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 628 QTNF_SCAN_TIMEOUT_SEC * HZ); 629 630 out: 631 return ret; 632 } 633 634 static int 635 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 636 struct cfg80211_connect_params *sme) 637 { 638 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 639 int ret; 640 641 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 642 return -EOPNOTSUPP; 643 644 if (sme->auth_type == NL80211_AUTHTYPE_SAE && 645 !(sme->flags & CONNECT_REQ_EXTERNAL_AUTH_SUPPORT)) { 646 pr_err("can not offload authentication to userspace\n"); 647 return -EOPNOTSUPP; 648 } 649 650 if (sme->bssid) 651 ether_addr_copy(vif->bssid, sme->bssid); 652 else 653 eth_zero_addr(vif->bssid); 654 655 ret = qtnf_cmd_send_connect(vif, sme); 656 if (ret) { 657 pr_err("VIF%u.%u: failed to connect\n", 658 vif->mac->macid, vif->vifid); 659 goto out; 660 } 661 662 out: 663 return ret; 664 } 665 666 static int 667 qtnf_external_auth(struct wiphy *wiphy, struct net_device *dev, 668 struct cfg80211_external_auth_params *auth) 669 { 670 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 671 int ret; 672 673 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 674 return -EOPNOTSUPP; 675 676 if (!ether_addr_equal(vif->bssid, auth->bssid)) 677 pr_warn("unexpected bssid: %pM", auth->bssid); 678 679 ret = qtnf_cmd_send_external_auth(vif, auth); 680 if (ret) { 681 pr_err("VIF%u.%u: failed to report external auth\n", 682 vif->mac->macid, vif->vifid); 683 goto out; 684 } 685 686 out: 687 return ret; 688 } 689 690 static int 691 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 692 u16 reason_code) 693 { 694 struct qtnf_wmac *mac = wiphy_priv(wiphy); 695 struct qtnf_vif *vif; 696 int ret = 0; 697 698 vif = qtnf_mac_get_base_vif(mac); 699 if (!vif) { 700 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 701 return -EFAULT; 702 } 703 704 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 705 ret = -EOPNOTSUPP; 706 goto out; 707 } 708 709 ret = qtnf_cmd_send_disconnect(vif, reason_code); 710 if (ret) 711 pr_err("VIF%u.%u: failed to disconnect\n", 712 mac->macid, vif->vifid); 713 714 if (vif->wdev.current_bss) { 715 netif_carrier_off(vif->netdev); 716 cfg80211_disconnected(vif->netdev, reason_code, 717 NULL, 0, true, GFP_KERNEL); 718 } 719 720 out: 721 return ret; 722 } 723 724 static int 725 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 726 int idx, struct survey_info *survey) 727 { 728 struct qtnf_wmac *mac = wiphy_priv(wiphy); 729 struct wireless_dev *wdev = dev->ieee80211_ptr; 730 struct ieee80211_supported_band *sband; 731 const struct cfg80211_chan_def *chandef = &wdev->chandef; 732 struct ieee80211_channel *chan; 733 struct qtnf_chan_stats stats; 734 int ret; 735 736 sband = wiphy->bands[NL80211_BAND_2GHZ]; 737 if (sband && idx >= sband->n_channels) { 738 idx -= sband->n_channels; 739 sband = NULL; 740 } 741 742 if (!sband) 743 sband = wiphy->bands[NL80211_BAND_5GHZ]; 744 745 if (!sband || idx >= sband->n_channels) 746 return -ENOENT; 747 748 chan = &sband->channels[idx]; 749 memset(&stats, 0, sizeof(stats)); 750 751 survey->channel = chan; 752 survey->filled = 0x0; 753 754 if (chandef->chan) { 755 if (chan->hw_value == chandef->chan->hw_value) 756 survey->filled = SURVEY_INFO_IN_USE; 757 } 758 759 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 760 switch (ret) { 761 case 0: 762 if (unlikely(stats.chan_num != chan->hw_value)) { 763 pr_err("received stats for channel %d instead of %d\n", 764 stats.chan_num, chan->hw_value); 765 ret = -EINVAL; 766 break; 767 } 768 769 survey->filled |= SURVEY_INFO_TIME | 770 SURVEY_INFO_TIME_SCAN | 771 SURVEY_INFO_TIME_BUSY | 772 SURVEY_INFO_TIME_RX | 773 SURVEY_INFO_TIME_TX | 774 SURVEY_INFO_NOISE_DBM; 775 776 survey->time_scan = stats.cca_try; 777 survey->time = stats.cca_try; 778 survey->time_tx = stats.cca_tx; 779 survey->time_rx = stats.cca_rx; 780 survey->time_busy = stats.cca_busy; 781 survey->noise = stats.chan_noise; 782 break; 783 case -ENOENT: 784 pr_debug("no stats for channel %u\n", chan->hw_value); 785 ret = 0; 786 break; 787 default: 788 pr_debug("failed to get chan(%d) stats from card\n", 789 chan->hw_value); 790 break; 791 } 792 793 return ret; 794 } 795 796 static int 797 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 798 struct cfg80211_chan_def *chandef) 799 { 800 struct net_device *ndev = wdev->netdev; 801 struct qtnf_vif *vif; 802 int ret; 803 804 if (!ndev) 805 return -ENODEV; 806 807 vif = qtnf_netdev_get_priv(wdev->netdev); 808 809 ret = qtnf_cmd_get_channel(vif, chandef); 810 if (ret) { 811 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 812 ret = -ENODATA; 813 goto out; 814 } 815 816 if (!cfg80211_chandef_valid(chandef)) { 817 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 818 ndev->name, chandef->chan->center_freq, 819 chandef->center_freq1, chandef->center_freq2, 820 chandef->width); 821 ret = -ENODATA; 822 goto out; 823 } 824 825 out: 826 return ret; 827 } 828 829 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 830 struct cfg80211_csa_settings *params) 831 { 832 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 833 int ret; 834 835 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 836 params->chandef.chan->hw_value, params->count, 837 params->radar_required, params->block_tx); 838 839 if (!cfg80211_chandef_valid(¶ms->chandef)) { 840 pr_err("%s: invalid channel\n", dev->name); 841 return -EINVAL; 842 } 843 844 ret = qtnf_cmd_send_chan_switch(vif, params); 845 if (ret) 846 pr_warn("%s: failed to switch to channel (%u)\n", 847 dev->name, params->chandef.chan->hw_value); 848 849 return ret; 850 } 851 852 static int qtnf_start_radar_detection(struct wiphy *wiphy, 853 struct net_device *ndev, 854 struct cfg80211_chan_def *chandef, 855 u32 cac_time_ms) 856 { 857 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 858 int ret; 859 860 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 861 return -ENOTSUPP; 862 863 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 864 if (ret) 865 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 866 867 return ret; 868 } 869 870 static int qtnf_set_mac_acl(struct wiphy *wiphy, 871 struct net_device *dev, 872 const struct cfg80211_acl_data *params) 873 { 874 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 875 int ret; 876 877 ret = qtnf_cmd_set_mac_acl(vif, params); 878 if (ret) 879 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 880 881 return ret; 882 } 883 884 static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 885 bool enabled, int timeout) 886 { 887 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 888 int ret; 889 890 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : 891 QLINK_PM_OFF, timeout); 892 if (ret) 893 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); 894 895 return ret; 896 } 897 898 static int qtnf_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 899 int *dbm) 900 { 901 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 902 int ret; 903 904 ret = qtnf_cmd_get_tx_power(vif, dbm); 905 if (ret) 906 pr_err("MAC%u: failed to get Tx power\n", vif->mac->macid); 907 908 return ret; 909 } 910 911 static int qtnf_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 912 enum nl80211_tx_power_setting type, int mbm) 913 { 914 struct qtnf_vif *vif; 915 int ret; 916 917 if (wdev) { 918 vif = qtnf_netdev_get_priv(wdev->netdev); 919 } else { 920 struct qtnf_wmac *mac = wiphy_priv(wiphy); 921 922 vif = qtnf_mac_get_base_vif(mac); 923 if (!vif) { 924 pr_err("MAC%u: primary VIF is not configured\n", 925 mac->macid); 926 return -EFAULT; 927 } 928 } 929 930 ret = qtnf_cmd_set_tx_power(vif, type, mbm); 931 if (ret) 932 pr_err("MAC%u: failed to set Tx power\n", vif->mac->macid); 933 934 return ret; 935 } 936 937 #ifdef CONFIG_PM 938 static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) 939 { 940 struct qtnf_wmac *mac = wiphy_priv(wiphy); 941 struct qtnf_vif *vif; 942 int ret = 0; 943 944 vif = qtnf_mac_get_base_vif(mac); 945 if (!vif) { 946 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 947 ret = -EFAULT; 948 goto exit; 949 } 950 951 if (!wowlan) { 952 pr_debug("WoWLAN triggers are not enabled\n"); 953 qtnf_virtual_intf_cleanup(vif->netdev); 954 goto exit; 955 } 956 957 qtnf_scan_done(vif->mac, true); 958 959 ret = qtnf_cmd_send_wowlan_set(vif, wowlan); 960 if (ret) { 961 pr_err("MAC%u: failed to set WoWLAN triggers\n", 962 mac->macid); 963 goto exit; 964 } 965 966 exit: 967 return ret; 968 } 969 970 static int qtnf_resume(struct wiphy *wiphy) 971 { 972 struct qtnf_wmac *mac = wiphy_priv(wiphy); 973 struct qtnf_vif *vif; 974 int ret = 0; 975 976 vif = qtnf_mac_get_base_vif(mac); 977 if (!vif) { 978 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 979 ret = -EFAULT; 980 goto exit; 981 } 982 983 ret = qtnf_cmd_send_wowlan_set(vif, NULL); 984 if (ret) { 985 pr_err("MAC%u: failed to reset WoWLAN triggers\n", 986 mac->macid); 987 goto exit; 988 } 989 990 exit: 991 return ret; 992 } 993 994 static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) 995 { 996 struct qtnf_wmac *mac = wiphy_priv(wiphy); 997 struct qtnf_bus *bus = mac->bus; 998 999 device_set_wakeup_enable(bus->dev, enabled); 1000 } 1001 #endif 1002 1003 static struct cfg80211_ops qtn_cfg80211_ops = { 1004 .add_virtual_intf = qtnf_add_virtual_intf, 1005 .change_virtual_intf = qtnf_change_virtual_intf, 1006 .del_virtual_intf = qtnf_del_virtual_intf, 1007 .start_ap = qtnf_start_ap, 1008 .change_beacon = qtnf_change_beacon, 1009 .stop_ap = qtnf_stop_ap, 1010 .set_wiphy_params = qtnf_set_wiphy_params, 1011 .mgmt_frame_register = qtnf_mgmt_frame_register, 1012 .mgmt_tx = qtnf_mgmt_tx, 1013 .change_station = qtnf_change_station, 1014 .del_station = qtnf_del_station, 1015 .get_station = qtnf_get_station, 1016 .dump_station = qtnf_dump_station, 1017 .add_key = qtnf_add_key, 1018 .del_key = qtnf_del_key, 1019 .set_default_key = qtnf_set_default_key, 1020 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 1021 .scan = qtnf_scan, 1022 .connect = qtnf_connect, 1023 .external_auth = qtnf_external_auth, 1024 .disconnect = qtnf_disconnect, 1025 .dump_survey = qtnf_dump_survey, 1026 .get_channel = qtnf_get_channel, 1027 .channel_switch = qtnf_channel_switch, 1028 .start_radar_detection = qtnf_start_radar_detection, 1029 .set_mac_acl = qtnf_set_mac_acl, 1030 .set_power_mgmt = qtnf_set_power_mgmt, 1031 .get_tx_power = qtnf_get_tx_power, 1032 .set_tx_power = qtnf_set_tx_power, 1033 #ifdef CONFIG_PM 1034 .suspend = qtnf_suspend, 1035 .resume = qtnf_resume, 1036 .set_wakeup = qtnf_set_wakeup, 1037 #endif 1038 }; 1039 1040 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy, 1041 struct regulatory_request *req) 1042 { 1043 struct qtnf_wmac *mac = wiphy_priv(wiphy); 1044 enum nl80211_band band; 1045 int ret; 1046 1047 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 1048 req->alpha2[0], req->alpha2[1]); 1049 1050 ret = qtnf_cmd_reg_notify(mac, req, qtnf_mac_slave_radar_get(wiphy)); 1051 if (ret) { 1052 pr_err("MAC%u: failed to update region to %c%c: %d\n", 1053 mac->macid, req->alpha2[0], req->alpha2[1], ret); 1054 return; 1055 } 1056 1057 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 1058 if (!wiphy->bands[band]) 1059 continue; 1060 1061 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 1062 if (ret) 1063 pr_err("MAC%u: failed to update band %u\n", 1064 mac->macid, band); 1065 } 1066 } 1067 1068 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 1069 { 1070 struct wiphy *wiphy; 1071 1072 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1073 qtn_cfg80211_ops.start_radar_detection = NULL; 1074 1075 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT)) 1076 qtn_cfg80211_ops.set_power_mgmt = NULL; 1077 1078 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 1079 if (!wiphy) 1080 return NULL; 1081 1082 set_wiphy_dev(wiphy, bus->dev); 1083 1084 return wiphy; 1085 } 1086 1087 static int 1088 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 1089 { 1090 struct ieee80211_iface_combination *if_comb; 1091 size_t n_if_comb; 1092 u16 interface_modes = 0; 1093 size_t i, j; 1094 1095 if_comb = mac_info->if_comb; 1096 n_if_comb = mac_info->n_if_comb; 1097 1098 if (!if_comb || !n_if_comb) 1099 return -ENOENT; 1100 1101 for (i = 0; i < n_if_comb; i++) { 1102 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 1103 1104 for (j = 0; j < if_comb[i].n_limits; j++) 1105 interface_modes |= if_comb[i].limits[j].types; 1106 } 1107 1108 wiphy->iface_combinations = if_comb; 1109 wiphy->n_iface_combinations = n_if_comb; 1110 wiphy->interface_modes = interface_modes; 1111 1112 return 0; 1113 } 1114 1115 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1116 { 1117 struct wiphy *wiphy = priv_to_wiphy(mac); 1118 struct qtnf_mac_info *macinfo = &mac->macinfo; 1119 int ret; 1120 bool regdomain_is_known; 1121 1122 if (!wiphy) { 1123 pr_err("invalid wiphy pointer\n"); 1124 return -EFAULT; 1125 } 1126 1127 wiphy->frag_threshold = macinfo->frag_thr; 1128 wiphy->rts_threshold = macinfo->rts_thr; 1129 wiphy->retry_short = macinfo->sretry_limit; 1130 wiphy->retry_long = macinfo->lretry_limit; 1131 wiphy->coverage_class = macinfo->coverage_class; 1132 1133 wiphy->max_scan_ssids = 1134 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1; 1135 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1136 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1137 wiphy->max_remain_on_channel_duration = 5000; 1138 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 1139 wiphy->max_num_csa_counters = 2; 1140 1141 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 1142 if (ret) 1143 goto out; 1144 1145 /* Initialize cipher suits */ 1146 wiphy->cipher_suites = qtnf_cipher_suites; 1147 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1148 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1149 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1150 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1151 WIPHY_FLAG_AP_UAPSD | 1152 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 1153 WIPHY_FLAG_4ADDR_STATION | 1154 WIPHY_FLAG_NETNS_OK; 1155 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 1156 1157 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1158 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1159 1160 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL) 1161 wiphy_ext_feature_set(wiphy, 1162 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 1163 1164 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1165 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1166 1167 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1168 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1169 1170 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1171 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1172 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1173 1174 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1175 1176 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1177 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1178 1179 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR) 1180 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 1181 1182 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN)) 1183 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; 1184 1185 if (hw_info->hw_capab & QLINK_HW_CAPAB_SAE) 1186 wiphy->features |= NL80211_FEATURE_SAE; 1187 1188 #ifdef CONFIG_PM 1189 if (macinfo->wowlan) 1190 wiphy->wowlan = macinfo->wowlan; 1191 #endif 1192 1193 regdomain_is_known = isalpha(mac->rd->alpha2[0]) && 1194 isalpha(mac->rd->alpha2[1]); 1195 1196 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1197 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1198 1199 if (mac->rd->alpha2[0] == '9' && mac->rd->alpha2[1] == '9') { 1200 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 1201 REGULATORY_STRICT_REG; 1202 wiphy_apply_custom_regulatory(wiphy, mac->rd); 1203 } else if (regdomain_is_known) { 1204 wiphy->regulatory_flags |= REGULATORY_STRICT_REG; 1205 } 1206 } else { 1207 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1208 } 1209 1210 if (mac->macinfo.extended_capabilities_len) { 1211 wiphy->extended_capabilities = 1212 mac->macinfo.extended_capabilities; 1213 wiphy->extended_capabilities_mask = 1214 mac->macinfo.extended_capabilities_mask; 1215 wiphy->extended_capabilities_len = 1216 mac->macinfo.extended_capabilities_len; 1217 } 1218 1219 strlcpy(wiphy->fw_version, hw_info->fw_version, 1220 sizeof(wiphy->fw_version)); 1221 wiphy->hw_version = hw_info->hw_version; 1222 1223 ret = wiphy_register(wiphy); 1224 if (ret < 0) 1225 goto out; 1226 1227 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1228 ret = regulatory_set_wiphy_regd(wiphy, mac->rd); 1229 else if (regdomain_is_known) 1230 ret = regulatory_hint(wiphy, mac->rd->alpha2); 1231 1232 out: 1233 return ret; 1234 } 1235 1236 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1237 { 1238 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1239 1240 if (qtnf_cmd_send_updown_intf(vif, up)) 1241 pr_err("failed to send %s command to VIF%u.%u\n", 1242 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); 1243 } 1244 1245 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1246 { 1247 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1248 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1249 1250 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1251 qtnf_disconnect(vif->wdev.wiphy, ndev, 1252 WLAN_REASON_DEAUTH_LEAVING); 1253 1254 qtnf_scan_done(mac, true); 1255 } 1256 1257 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1258 { 1259 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1260 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, 1261 NULL, 0, 1, GFP_KERNEL); 1262 1263 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1264 } 1265 1266 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1267 { 1268 switch (band->band) { 1269 case NL80211_BAND_2GHZ: 1270 band->bitrates = qtnf_rates_2g; 1271 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1272 break; 1273 case NL80211_BAND_5GHZ: 1274 band->bitrates = qtnf_rates_5g; 1275 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1276 break; 1277 default: 1278 band->bitrates = NULL; 1279 band->n_bitrates = 0; 1280 break; 1281 } 1282 } 1283