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 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 58 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 59 }, 60 [NL80211_IFTYPE_AP] = { 61 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 62 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 63 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 64 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 65 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 66 BIT(IEEE80211_STYPE_AUTH >> 4), 67 }, 68 }; 69 70 static int 71 qtnf_validate_iface_combinations(struct wiphy *wiphy, 72 struct qtnf_vif *change_vif, 73 enum nl80211_iftype new_type) 74 { 75 struct qtnf_wmac *mac; 76 struct qtnf_vif *vif; 77 int i; 78 int ret = 0; 79 struct iface_combination_params params = { 80 .num_different_channels = 1, 81 }; 82 83 mac = wiphy_priv(wiphy); 84 if (!mac) 85 return -EFAULT; 86 87 for (i = 0; i < QTNF_MAX_INTF; i++) { 88 vif = &mac->iflist[i]; 89 if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) 90 params.iftype_num[vif->wdev.iftype]++; 91 } 92 93 if (change_vif) { 94 params.iftype_num[new_type]++; 95 params.iftype_num[change_vif->wdev.iftype]--; 96 } else { 97 params.iftype_num[new_type]++; 98 } 99 100 ret = cfg80211_check_combinations(wiphy, ¶ms); 101 102 return ret; 103 } 104 105 static int 106 qtnf_change_virtual_intf(struct wiphy *wiphy, 107 struct net_device *dev, 108 enum nl80211_iftype type, 109 struct vif_params *params) 110 { 111 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 112 u8 *mac_addr = NULL; 113 int use4addr = 0; 114 int ret; 115 116 ret = qtnf_validate_iface_combinations(wiphy, vif, type); 117 if (ret) { 118 pr_err("VIF%u.%u combination check: failed to set type %d\n", 119 vif->mac->macid, vif->vifid, type); 120 return ret; 121 } 122 123 if (params) { 124 mac_addr = params->macaddr; 125 use4addr = params->use_4addr; 126 } 127 128 qtnf_scan_done(vif->mac, true); 129 130 ret = qtnf_cmd_send_change_intf_type(vif, type, use4addr, mac_addr); 131 if (ret) { 132 pr_err("VIF%u.%u: failed to change type to %d\n", 133 vif->mac->macid, vif->vifid, type); 134 return ret; 135 } 136 137 vif->wdev.iftype = type; 138 return 0; 139 } 140 141 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 142 { 143 struct net_device *netdev = wdev->netdev; 144 struct qtnf_vif *vif; 145 146 if (WARN_ON(!netdev)) 147 return -EFAULT; 148 149 vif = qtnf_netdev_get_priv(wdev->netdev); 150 151 qtnf_scan_done(vif->mac, true); 152 153 /* Stop data */ 154 netif_tx_stop_all_queues(netdev); 155 if (netif_carrier_ok(netdev)) 156 netif_carrier_off(netdev); 157 158 if (netdev->reg_state == NETREG_REGISTERED) 159 unregister_netdevice(netdev); 160 161 if (qtnf_cmd_send_del_intf(vif)) 162 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 163 vif->vifid); 164 165 vif->netdev->ieee80211_ptr = NULL; 166 vif->netdev = NULL; 167 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 168 169 return 0; 170 } 171 172 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_t, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct qtnf_wmac *mac; 179 struct qtnf_vif *vif; 180 u8 *mac_addr = NULL; 181 int use4addr = 0; 182 int ret; 183 184 mac = wiphy_priv(wiphy); 185 186 if (!mac) 187 return ERR_PTR(-EFAULT); 188 189 ret = qtnf_validate_iface_combinations(wiphy, NULL, type); 190 if (ret) { 191 pr_err("MAC%u invalid combination: failed to add type %d\n", 192 mac->macid, type); 193 return ERR_PTR(ret); 194 } 195 196 switch (type) { 197 case NL80211_IFTYPE_STATION: 198 case NL80211_IFTYPE_AP: 199 vif = qtnf_mac_get_free_vif(mac); 200 if (!vif) { 201 pr_err("MAC%u: no free VIF available\n", mac->macid); 202 return ERR_PTR(-EFAULT); 203 } 204 205 eth_zero_addr(vif->mac_addr); 206 eth_zero_addr(vif->bssid); 207 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 208 memset(&vif->wdev, 0, sizeof(vif->wdev)); 209 vif->wdev.wiphy = wiphy; 210 vif->wdev.iftype = type; 211 break; 212 default: 213 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 214 return ERR_PTR(-ENOTSUPP); 215 } 216 217 if (params) { 218 mac_addr = params->macaddr; 219 use4addr = params->use_4addr; 220 } 221 222 ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr); 223 if (ret) { 224 pr_err("VIF%u.%u: failed to add VIF %pM\n", 225 mac->macid, vif->vifid, mac_addr); 226 goto err_cmd; 227 } 228 229 if (!is_valid_ether_addr(vif->mac_addr)) { 230 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 231 mac->macid, vif->vifid, vif->mac_addr); 232 ret = -EINVAL; 233 goto err_mac; 234 } 235 236 ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); 237 if (ret) { 238 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 239 vif->vifid); 240 goto err_net; 241 } 242 243 vif->wdev.netdev = vif->netdev; 244 return &vif->wdev; 245 246 err_net: 247 vif->netdev = NULL; 248 err_mac: 249 qtnf_cmd_send_del_intf(vif); 250 err_cmd: 251 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 252 253 return ERR_PTR(ret); 254 } 255 256 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 257 const struct cfg80211_beacon_data *info) 258 { 259 int ret = 0; 260 261 if (!info->beacon_ies || !info->beacon_ies_len) { 262 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 263 NULL, 0); 264 } else { 265 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 266 info->beacon_ies, 267 info->beacon_ies_len); 268 } 269 270 if (ret) 271 goto out; 272 273 if (!info->proberesp_ies || !info->proberesp_ies_len) { 274 ret = qtnf_cmd_send_mgmt_set_appie(vif, 275 QLINK_IE_SET_PROBE_RESP_IES, 276 NULL, 0); 277 } else { 278 ret = qtnf_cmd_send_mgmt_set_appie(vif, 279 QLINK_IE_SET_PROBE_RESP_IES, 280 info->proberesp_ies, 281 info->proberesp_ies_len); 282 } 283 284 if (ret) 285 goto out; 286 287 if (!info->assocresp_ies || !info->assocresp_ies_len) { 288 ret = qtnf_cmd_send_mgmt_set_appie(vif, 289 QLINK_IE_SET_ASSOC_RESP, 290 NULL, 0); 291 } else { 292 ret = qtnf_cmd_send_mgmt_set_appie(vif, 293 QLINK_IE_SET_ASSOC_RESP, 294 info->assocresp_ies, 295 info->assocresp_ies_len); 296 } 297 298 out: 299 return ret; 300 } 301 302 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 303 struct cfg80211_beacon_data *info) 304 { 305 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 306 307 return qtnf_mgmt_set_appie(vif, info); 308 } 309 310 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 311 struct cfg80211_ap_settings *settings) 312 { 313 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 314 int ret; 315 316 ret = qtnf_cmd_send_start_ap(vif, settings); 317 if (ret) 318 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 319 vif->vifid); 320 321 return ret; 322 } 323 324 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 325 { 326 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 327 int ret; 328 329 qtnf_scan_done(vif->mac, true); 330 331 ret = qtnf_cmd_send_stop_ap(vif); 332 if (ret) 333 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 334 vif->mac->macid, vif->vifid); 335 336 netif_carrier_off(vif->netdev); 337 338 return ret; 339 } 340 341 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 342 { 343 struct qtnf_wmac *mac = wiphy_priv(wiphy); 344 struct qtnf_vif *vif; 345 int ret; 346 347 vif = qtnf_mac_get_base_vif(mac); 348 if (!vif) { 349 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 350 return -EFAULT; 351 } 352 353 ret = qtnf_cmd_send_update_phy_params(mac, changed); 354 if (ret) 355 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 356 357 return ret; 358 } 359 360 static void 361 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 362 u16 frame_type, bool reg) 363 { 364 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 365 u16 mgmt_type; 366 u16 new_mask; 367 u16 qlink_frame_type = 0; 368 369 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 370 371 if (reg) 372 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 373 else 374 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 375 376 if (new_mask == vif->mgmt_frames_bitmask) 377 return; 378 379 switch (frame_type & IEEE80211_FCTL_STYPE) { 380 case IEEE80211_STYPE_REASSOC_REQ: 381 case IEEE80211_STYPE_ASSOC_REQ: 382 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 383 break; 384 case IEEE80211_STYPE_AUTH: 385 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 386 break; 387 case IEEE80211_STYPE_PROBE_REQ: 388 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 389 break; 390 case IEEE80211_STYPE_ACTION: 391 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 392 break; 393 default: 394 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 395 vif->mac->macid, vif->vifid, 396 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 397 return; 398 } 399 400 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 401 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 402 vif->mac->macid, vif->vifid, reg ? "" : "un", 403 frame_type); 404 return; 405 } 406 407 vif->mgmt_frames_bitmask = new_mask; 408 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 409 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 410 } 411 412 static int 413 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 414 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 415 { 416 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 417 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 418 u32 short_cookie = prandom_u32(); 419 u16 flags = 0; 420 u16 freq; 421 422 *cookie = short_cookie; 423 424 if (params->offchan) 425 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 426 427 if (params->no_cck) 428 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 429 430 if (params->dont_wait_for_ack) 431 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 432 433 /* If channel is not specified, pass "freq = 0" to tell device 434 * firmware to use current channel. 435 */ 436 if (params->chan) 437 freq = params->chan->center_freq; 438 else 439 freq = 0; 440 441 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 442 wdev->netdev->name, freq, 443 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 444 params->len, short_cookie, flags); 445 446 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 447 freq, 448 params->buf, params->len); 449 } 450 451 static int 452 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 453 const u8 *mac, struct station_info *sinfo) 454 { 455 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 456 457 sinfo->generation = vif->generation; 458 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 459 } 460 461 static int 462 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 463 int idx, u8 *mac, struct station_info *sinfo) 464 { 465 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 466 const struct qtnf_sta_node *sta_node; 467 int ret; 468 469 switch (vif->wdev.iftype) { 470 case NL80211_IFTYPE_STATION: 471 if (idx != 0 || !vif->wdev.current_bss) 472 return -ENOENT; 473 474 ether_addr_copy(mac, vif->bssid); 475 break; 476 case NL80211_IFTYPE_AP: 477 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 478 if (unlikely(!sta_node)) 479 return -ENOENT; 480 481 ether_addr_copy(mac, sta_node->mac_addr); 482 break; 483 default: 484 return -ENOTSUPP; 485 } 486 487 ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); 488 489 if (vif->wdev.iftype == NL80211_IFTYPE_AP) { 490 if (ret == -ENOENT) { 491 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 492 sinfo->filled = 0; 493 } 494 } 495 496 sinfo->generation = vif->generation; 497 498 return ret; 499 } 500 501 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_index, bool pairwise, const u8 *mac_addr, 503 struct key_params *params) 504 { 505 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 506 int ret; 507 508 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 509 if (ret) 510 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 511 vif->mac->macid, vif->vifid, params->cipher, key_index, 512 pairwise); 513 514 return ret; 515 } 516 517 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 518 u8 key_index, bool pairwise, const u8 *mac_addr) 519 { 520 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 521 int ret; 522 523 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 524 if (ret) { 525 if (ret == -ENOENT) { 526 pr_debug("VIF%u.%u: key index %d out of bounds\n", 527 vif->mac->macid, vif->vifid, key_index); 528 } else { 529 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 530 vif->mac->macid, vif->vifid, 531 key_index, pairwise); 532 } 533 } 534 535 return ret; 536 } 537 538 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 539 u8 key_index, bool unicast, bool multicast) 540 { 541 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 542 int ret; 543 544 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 545 if (ret) 546 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 547 vif->mac->macid, vif->vifid, key_index, unicast, 548 multicast); 549 550 return ret; 551 } 552 553 static int 554 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 555 u8 key_index) 556 { 557 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 558 int ret; 559 560 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 561 if (ret) 562 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 563 vif->mac->macid, vif->vifid, key_index); 564 565 return ret; 566 } 567 568 static int 569 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 570 const u8 *mac, struct station_parameters *params) 571 { 572 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 573 int ret; 574 575 ret = qtnf_cmd_send_change_sta(vif, mac, params); 576 if (ret) 577 pr_err("VIF%u.%u: failed to change STA %pM\n", 578 vif->mac->macid, vif->vifid, mac); 579 580 return ret; 581 } 582 583 static int 584 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 585 struct station_del_parameters *params) 586 { 587 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 588 int ret; 589 590 if (params->mac && 591 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 592 !is_broadcast_ether_addr(params->mac) && 593 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 594 return 0; 595 596 ret = qtnf_cmd_send_del_sta(vif, params); 597 if (ret) 598 pr_err("VIF%u.%u: failed to delete STA %pM\n", 599 vif->mac->macid, vif->vifid, params->mac); 600 601 return ret; 602 } 603 604 static int 605 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 606 { 607 struct qtnf_wmac *mac = wiphy_priv(wiphy); 608 int ret; 609 610 cancel_delayed_work_sync(&mac->scan_timeout); 611 612 mac->scan_req = request; 613 614 ret = qtnf_cmd_send_scan(mac); 615 if (ret) { 616 pr_err("MAC%u: failed to start scan\n", mac->macid); 617 mac->scan_req = NULL; 618 goto out; 619 } 620 621 pr_debug("MAC%u: scan started\n", mac->macid); 622 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 623 QTNF_SCAN_TIMEOUT_SEC * HZ); 624 625 out: 626 return ret; 627 } 628 629 static int 630 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 631 struct cfg80211_connect_params *sme) 632 { 633 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 634 int ret; 635 636 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 637 return -EOPNOTSUPP; 638 639 if (sme->bssid) 640 ether_addr_copy(vif->bssid, sme->bssid); 641 else 642 eth_zero_addr(vif->bssid); 643 644 ret = qtnf_cmd_send_connect(vif, sme); 645 if (ret) { 646 pr_err("VIF%u.%u: failed to connect\n", 647 vif->mac->macid, vif->vifid); 648 goto out; 649 } 650 651 out: 652 return ret; 653 } 654 655 static int 656 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 657 u16 reason_code) 658 { 659 struct qtnf_wmac *mac = wiphy_priv(wiphy); 660 struct qtnf_vif *vif; 661 int ret = 0; 662 663 vif = qtnf_mac_get_base_vif(mac); 664 if (!vif) { 665 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 666 return -EFAULT; 667 } 668 669 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 670 ret = -EOPNOTSUPP; 671 goto out; 672 } 673 674 ret = qtnf_cmd_send_disconnect(vif, reason_code); 675 if (ret) 676 pr_err("VIF%u.%u: failed to disconnect\n", 677 mac->macid, vif->vifid); 678 679 if (vif->wdev.current_bss) { 680 netif_carrier_off(vif->netdev); 681 cfg80211_disconnected(vif->netdev, reason_code, 682 NULL, 0, true, GFP_KERNEL); 683 } 684 685 out: 686 return ret; 687 } 688 689 static int 690 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 691 int idx, struct survey_info *survey) 692 { 693 struct qtnf_wmac *mac = wiphy_priv(wiphy); 694 struct wireless_dev *wdev = dev->ieee80211_ptr; 695 struct ieee80211_supported_band *sband; 696 const struct cfg80211_chan_def *chandef = &wdev->chandef; 697 struct ieee80211_channel *chan; 698 struct qtnf_chan_stats stats; 699 int ret; 700 701 sband = wiphy->bands[NL80211_BAND_2GHZ]; 702 if (sband && idx >= sband->n_channels) { 703 idx -= sband->n_channels; 704 sband = NULL; 705 } 706 707 if (!sband) 708 sband = wiphy->bands[NL80211_BAND_5GHZ]; 709 710 if (!sband || idx >= sband->n_channels) 711 return -ENOENT; 712 713 chan = &sband->channels[idx]; 714 memset(&stats, 0, sizeof(stats)); 715 716 survey->channel = chan; 717 survey->filled = 0x0; 718 719 if (chandef->chan) { 720 if (chan->hw_value == chandef->chan->hw_value) 721 survey->filled = SURVEY_INFO_IN_USE; 722 } 723 724 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 725 switch (ret) { 726 case 0: 727 if (unlikely(stats.chan_num != chan->hw_value)) { 728 pr_err("received stats for channel %d instead of %d\n", 729 stats.chan_num, chan->hw_value); 730 ret = -EINVAL; 731 break; 732 } 733 734 survey->filled |= SURVEY_INFO_TIME | 735 SURVEY_INFO_TIME_SCAN | 736 SURVEY_INFO_TIME_BUSY | 737 SURVEY_INFO_TIME_RX | 738 SURVEY_INFO_TIME_TX | 739 SURVEY_INFO_NOISE_DBM; 740 741 survey->time_scan = stats.cca_try; 742 survey->time = stats.cca_try; 743 survey->time_tx = stats.cca_tx; 744 survey->time_rx = stats.cca_rx; 745 survey->time_busy = stats.cca_busy; 746 survey->noise = stats.chan_noise; 747 break; 748 case -ENOENT: 749 pr_debug("no stats for channel %u\n", chan->hw_value); 750 ret = 0; 751 break; 752 default: 753 pr_debug("failed to get chan(%d) stats from card\n", 754 chan->hw_value); 755 break; 756 } 757 758 return ret; 759 } 760 761 static int 762 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 763 struct cfg80211_chan_def *chandef) 764 { 765 struct net_device *ndev = wdev->netdev; 766 struct qtnf_vif *vif; 767 int ret; 768 769 if (!ndev) 770 return -ENODEV; 771 772 vif = qtnf_netdev_get_priv(wdev->netdev); 773 774 ret = qtnf_cmd_get_channel(vif, chandef); 775 if (ret) { 776 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 777 ret = -ENODATA; 778 goto out; 779 } 780 781 if (!cfg80211_chandef_valid(chandef)) { 782 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 783 ndev->name, chandef->chan->center_freq, 784 chandef->center_freq1, chandef->center_freq2, 785 chandef->width); 786 ret = -ENODATA; 787 goto out; 788 } 789 790 out: 791 return ret; 792 } 793 794 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 795 struct cfg80211_csa_settings *params) 796 { 797 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 798 int ret; 799 800 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 801 params->chandef.chan->hw_value, params->count, 802 params->radar_required, params->block_tx); 803 804 if (!cfg80211_chandef_valid(¶ms->chandef)) { 805 pr_err("%s: invalid channel\n", dev->name); 806 return -EINVAL; 807 } 808 809 ret = qtnf_cmd_send_chan_switch(vif, params); 810 if (ret) 811 pr_warn("%s: failed to switch to channel (%u)\n", 812 dev->name, params->chandef.chan->hw_value); 813 814 return ret; 815 } 816 817 static int qtnf_start_radar_detection(struct wiphy *wiphy, 818 struct net_device *ndev, 819 struct cfg80211_chan_def *chandef, 820 u32 cac_time_ms) 821 { 822 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 823 int ret; 824 825 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 826 return -ENOTSUPP; 827 828 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 829 if (ret) 830 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 831 832 return ret; 833 } 834 835 static int qtnf_set_mac_acl(struct wiphy *wiphy, 836 struct net_device *dev, 837 const struct cfg80211_acl_data *params) 838 { 839 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 840 int ret; 841 842 ret = qtnf_cmd_set_mac_acl(vif, params); 843 if (ret) 844 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 845 846 return ret; 847 } 848 849 static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 850 bool enabled, int timeout) 851 { 852 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 853 int ret; 854 855 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : 856 QLINK_PM_OFF, timeout); 857 if (ret) 858 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); 859 860 return ret; 861 } 862 863 #ifdef CONFIG_PM 864 static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) 865 { 866 struct qtnf_wmac *mac = wiphy_priv(wiphy); 867 struct qtnf_vif *vif; 868 int ret = 0; 869 870 vif = qtnf_mac_get_base_vif(mac); 871 if (!vif) { 872 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 873 ret = -EFAULT; 874 goto exit; 875 } 876 877 if (!wowlan) { 878 pr_debug("WoWLAN triggers are not enabled\n"); 879 qtnf_virtual_intf_cleanup(vif->netdev); 880 goto exit; 881 } 882 883 qtnf_scan_done(vif->mac, true); 884 885 ret = qtnf_cmd_send_wowlan_set(vif, wowlan); 886 if (ret) { 887 pr_err("MAC%u: failed to set WoWLAN triggers\n", 888 mac->macid); 889 goto exit; 890 } 891 892 exit: 893 return ret; 894 } 895 896 static int qtnf_resume(struct wiphy *wiphy) 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 ret = qtnf_cmd_send_wowlan_set(vif, NULL); 910 if (ret) { 911 pr_err("MAC%u: failed to reset WoWLAN triggers\n", 912 mac->macid); 913 goto exit; 914 } 915 916 exit: 917 return ret; 918 } 919 920 static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) 921 { 922 struct qtnf_wmac *mac = wiphy_priv(wiphy); 923 struct qtnf_bus *bus = mac->bus; 924 925 device_set_wakeup_enable(bus->dev, enabled); 926 } 927 #endif 928 929 static struct cfg80211_ops qtn_cfg80211_ops = { 930 .add_virtual_intf = qtnf_add_virtual_intf, 931 .change_virtual_intf = qtnf_change_virtual_intf, 932 .del_virtual_intf = qtnf_del_virtual_intf, 933 .start_ap = qtnf_start_ap, 934 .change_beacon = qtnf_change_beacon, 935 .stop_ap = qtnf_stop_ap, 936 .set_wiphy_params = qtnf_set_wiphy_params, 937 .mgmt_frame_register = qtnf_mgmt_frame_register, 938 .mgmt_tx = qtnf_mgmt_tx, 939 .change_station = qtnf_change_station, 940 .del_station = qtnf_del_station, 941 .get_station = qtnf_get_station, 942 .dump_station = qtnf_dump_station, 943 .add_key = qtnf_add_key, 944 .del_key = qtnf_del_key, 945 .set_default_key = qtnf_set_default_key, 946 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 947 .scan = qtnf_scan, 948 .connect = qtnf_connect, 949 .disconnect = qtnf_disconnect, 950 .dump_survey = qtnf_dump_survey, 951 .get_channel = qtnf_get_channel, 952 .channel_switch = qtnf_channel_switch, 953 .start_radar_detection = qtnf_start_radar_detection, 954 .set_mac_acl = qtnf_set_mac_acl, 955 .set_power_mgmt = qtnf_set_power_mgmt, 956 #ifdef CONFIG_PM 957 .suspend = qtnf_suspend, 958 .resume = qtnf_resume, 959 .set_wakeup = qtnf_set_wakeup, 960 #endif 961 }; 962 963 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 964 struct regulatory_request *req) 965 { 966 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 967 struct qtnf_bus *bus = mac->bus; 968 struct wiphy *wiphy; 969 unsigned int mac_idx; 970 enum nl80211_band band; 971 int ret; 972 973 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 974 req->alpha2[0], req->alpha2[1]); 975 976 ret = qtnf_cmd_reg_notify(bus, req); 977 if (ret) { 978 if (ret == -EOPNOTSUPP) { 979 pr_warn("reg update not supported\n"); 980 } else if (ret == -EALREADY) { 981 pr_info("regulatory domain is already set to %c%c", 982 req->alpha2[0], req->alpha2[1]); 983 } else { 984 pr_err("failed to update reg domain to %c%c\n", 985 req->alpha2[0], req->alpha2[1]); 986 } 987 988 return; 989 } 990 991 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 992 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 993 continue; 994 995 mac = bus->mac[mac_idx]; 996 if (!mac) 997 continue; 998 999 wiphy = priv_to_wiphy(mac); 1000 1001 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 1002 if (!wiphy->bands[band]) 1003 continue; 1004 1005 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 1006 if (ret) 1007 pr_err("failed to get chan info for mac %u band %u\n", 1008 mac_idx, band); 1009 } 1010 } 1011 } 1012 1013 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 1014 { 1015 struct wiphy *wiphy; 1016 1017 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1018 qtn_cfg80211_ops.start_radar_detection = NULL; 1019 1020 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT)) 1021 qtn_cfg80211_ops.set_power_mgmt = NULL; 1022 1023 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 1024 if (!wiphy) 1025 return NULL; 1026 1027 set_wiphy_dev(wiphy, bus->dev); 1028 1029 return wiphy; 1030 } 1031 1032 static int 1033 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 1034 { 1035 struct ieee80211_iface_combination *if_comb; 1036 size_t n_if_comb; 1037 u16 interface_modes = 0; 1038 size_t i, j; 1039 1040 if_comb = mac_info->if_comb; 1041 n_if_comb = mac_info->n_if_comb; 1042 1043 if (!if_comb || !n_if_comb) 1044 return -ENOENT; 1045 1046 for (i = 0; i < n_if_comb; i++) { 1047 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 1048 1049 for (j = 0; j < if_comb[i].n_limits; j++) 1050 interface_modes |= if_comb[i].limits[j].types; 1051 } 1052 1053 wiphy->iface_combinations = if_comb; 1054 wiphy->n_iface_combinations = n_if_comb; 1055 wiphy->interface_modes = interface_modes; 1056 1057 return 0; 1058 } 1059 1060 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1061 { 1062 struct wiphy *wiphy = priv_to_wiphy(mac); 1063 struct qtnf_mac_info *macinfo = &mac->macinfo; 1064 int ret; 1065 1066 if (!wiphy) { 1067 pr_err("invalid wiphy pointer\n"); 1068 return -EFAULT; 1069 } 1070 1071 wiphy->frag_threshold = macinfo->frag_thr; 1072 wiphy->rts_threshold = macinfo->rts_thr; 1073 wiphy->retry_short = macinfo->sretry_limit; 1074 wiphy->retry_long = macinfo->lretry_limit; 1075 wiphy->coverage_class = macinfo->coverage_class; 1076 1077 wiphy->max_scan_ssids = 1078 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1; 1079 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1080 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1081 wiphy->max_remain_on_channel_duration = 5000; 1082 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 1083 wiphy->max_num_csa_counters = 2; 1084 1085 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 1086 if (ret) 1087 goto out; 1088 1089 /* Initialize cipher suits */ 1090 wiphy->cipher_suites = qtnf_cipher_suites; 1091 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1092 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1093 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1094 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1095 WIPHY_FLAG_AP_UAPSD | 1096 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 1097 WIPHY_FLAG_4ADDR_STATION; 1098 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 1099 1100 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1101 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1102 1103 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL) 1104 wiphy_ext_feature_set(wiphy, 1105 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 1106 1107 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1108 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1109 1110 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1111 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1112 1113 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1114 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1115 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1116 1117 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1118 1119 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1120 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1121 1122 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR) 1123 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 1124 1125 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN)) 1126 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; 1127 1128 #ifdef CONFIG_PM 1129 if (macinfo->wowlan) 1130 wiphy->wowlan = macinfo->wowlan; 1131 #endif 1132 1133 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1134 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1135 REGULATORY_CUSTOM_REG; 1136 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1137 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1138 } else { 1139 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1140 } 1141 1142 if (mac->macinfo.extended_capabilities_len) { 1143 wiphy->extended_capabilities = 1144 mac->macinfo.extended_capabilities; 1145 wiphy->extended_capabilities_mask = 1146 mac->macinfo.extended_capabilities_mask; 1147 wiphy->extended_capabilities_len = 1148 mac->macinfo.extended_capabilities_len; 1149 } 1150 1151 strlcpy(wiphy->fw_version, hw_info->fw_version, 1152 sizeof(wiphy->fw_version)); 1153 wiphy->hw_version = hw_info->hw_version; 1154 1155 ret = wiphy_register(wiphy); 1156 if (ret < 0) 1157 goto out; 1158 1159 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1160 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1161 else if (isalpha(hw_info->rd->alpha2[0]) && 1162 isalpha(hw_info->rd->alpha2[1])) 1163 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1164 1165 out: 1166 return ret; 1167 } 1168 1169 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1170 { 1171 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1172 1173 if (qtnf_cmd_send_updown_intf(vif, up)) 1174 pr_err("failed to send %s command to VIF%u.%u\n", 1175 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); 1176 } 1177 1178 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1179 { 1180 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1181 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1182 1183 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1184 qtnf_disconnect(vif->wdev.wiphy, ndev, 1185 WLAN_REASON_DEAUTH_LEAVING); 1186 1187 qtnf_scan_done(mac, true); 1188 } 1189 1190 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1191 { 1192 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1193 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, 1194 NULL, 0, 1, GFP_KERNEL); 1195 1196 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1197 } 1198 1199 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1200 { 1201 switch (band->band) { 1202 case NL80211_BAND_2GHZ: 1203 band->bitrates = qtnf_rates_2g; 1204 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1205 break; 1206 case NL80211_BAND_5GHZ: 1207 band->bitrates = qtnf_rates_5g; 1208 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1209 break; 1210 default: 1211 band->bitrates = NULL; 1212 band->n_bitrates = 0; 1213 break; 1214 } 1215 } 1216