1 /* 2 * Copyright (c) 2012-2012 Quantenna Communications, Inc. 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 */ 16 17 #include <linux/kernel.h> 18 #include <linux/etherdevice.h> 19 #include <linux/vmalloc.h> 20 #include <linux/ieee80211.h> 21 #include <net/cfg80211.h> 22 #include <net/netlink.h> 23 24 #include "cfg80211.h" 25 #include "commands.h" 26 #include "core.h" 27 #include "util.h" 28 #include "bus.h" 29 30 /* Supported rates to be advertised to the cfg80211 */ 31 static struct ieee80211_rate qtnf_rates_2g[] = { 32 {.bitrate = 10, .hw_value = 2, }, 33 {.bitrate = 20, .hw_value = 4, }, 34 {.bitrate = 55, .hw_value = 11, }, 35 {.bitrate = 110, .hw_value = 22, }, 36 {.bitrate = 60, .hw_value = 12, }, 37 {.bitrate = 90, .hw_value = 18, }, 38 {.bitrate = 120, .hw_value = 24, }, 39 {.bitrate = 180, .hw_value = 36, }, 40 {.bitrate = 240, .hw_value = 48, }, 41 {.bitrate = 360, .hw_value = 72, }, 42 {.bitrate = 480, .hw_value = 96, }, 43 {.bitrate = 540, .hw_value = 108, }, 44 }; 45 46 /* Supported rates to be advertised to the cfg80211 */ 47 static struct ieee80211_rate qtnf_rates_5g[] = { 48 {.bitrate = 60, .hw_value = 12, }, 49 {.bitrate = 90, .hw_value = 18, }, 50 {.bitrate = 120, .hw_value = 24, }, 51 {.bitrate = 180, .hw_value = 36, }, 52 {.bitrate = 240, .hw_value = 48, }, 53 {.bitrate = 360, .hw_value = 72, }, 54 {.bitrate = 480, .hw_value = 96, }, 55 {.bitrate = 540, .hw_value = 108, }, 56 }; 57 58 /* Supported crypto cipher suits to be advertised to cfg80211 */ 59 static const u32 qtnf_cipher_suites[] = { 60 WLAN_CIPHER_SUITE_TKIP, 61 WLAN_CIPHER_SUITE_CCMP, 62 WLAN_CIPHER_SUITE_AES_CMAC, 63 }; 64 65 /* Supported mgmt frame types to be advertised to cfg80211 */ 66 static const struct ieee80211_txrx_stypes 67 qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = { 68 [NL80211_IFTYPE_STATION] = { 69 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 70 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 71 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 72 }, 73 [NL80211_IFTYPE_AP] = { 74 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 75 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 76 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 77 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 78 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 79 BIT(IEEE80211_STYPE_AUTH >> 4), 80 }, 81 }; 82 83 static int 84 qtnf_validate_iface_combinations(struct wiphy *wiphy, 85 struct qtnf_vif *change_vif, 86 enum nl80211_iftype new_type) 87 { 88 struct qtnf_wmac *mac; 89 struct qtnf_vif *vif; 90 int i; 91 int ret = 0; 92 struct iface_combination_params params = { 93 .num_different_channels = 1, 94 }; 95 96 mac = wiphy_priv(wiphy); 97 if (!mac) 98 return -EFAULT; 99 100 for (i = 0; i < QTNF_MAX_INTF; i++) { 101 vif = &mac->iflist[i]; 102 if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) 103 params.iftype_num[vif->wdev.iftype]++; 104 } 105 106 if (change_vif) { 107 params.iftype_num[new_type]++; 108 params.iftype_num[change_vif->wdev.iftype]--; 109 } else { 110 params.iftype_num[new_type]++; 111 } 112 113 ret = cfg80211_check_combinations(wiphy, ¶ms); 114 115 return ret; 116 } 117 118 static int 119 qtnf_change_virtual_intf(struct wiphy *wiphy, 120 struct net_device *dev, 121 enum nl80211_iftype type, 122 struct vif_params *params) 123 { 124 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 125 u8 *mac_addr; 126 int ret; 127 128 ret = qtnf_validate_iface_combinations(wiphy, vif, type); 129 if (ret) { 130 pr_err("VIF%u.%u combination check: failed to set type %d\n", 131 vif->mac->macid, vif->vifid, type); 132 return ret; 133 } 134 135 if (params) 136 mac_addr = params->macaddr; 137 else 138 mac_addr = NULL; 139 140 qtnf_scan_done(vif->mac, true); 141 142 ret = qtnf_cmd_send_change_intf_type(vif, type, mac_addr); 143 if (ret) { 144 pr_err("VIF%u.%u: failed to change VIF type: %d\n", 145 vif->mac->macid, vif->vifid, ret); 146 return ret; 147 } 148 149 vif->wdev.iftype = type; 150 return 0; 151 } 152 153 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 154 { 155 struct net_device *netdev = wdev->netdev; 156 struct qtnf_vif *vif; 157 158 if (WARN_ON(!netdev)) 159 return -EFAULT; 160 161 vif = qtnf_netdev_get_priv(wdev->netdev); 162 163 qtnf_scan_done(vif->mac, true); 164 165 /* Stop data */ 166 netif_tx_stop_all_queues(netdev); 167 if (netif_carrier_ok(netdev)) 168 netif_carrier_off(netdev); 169 170 if (netdev->reg_state == NETREG_REGISTERED) 171 unregister_netdevice(netdev); 172 173 if (qtnf_cmd_send_del_intf(vif)) 174 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 175 vif->vifid); 176 177 vif->netdev->ieee80211_ptr = NULL; 178 vif->netdev = NULL; 179 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 180 181 return 0; 182 } 183 184 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 185 const char *name, 186 unsigned char name_assign_t, 187 enum nl80211_iftype type, 188 struct vif_params *params) 189 { 190 struct qtnf_wmac *mac; 191 struct qtnf_vif *vif; 192 u8 *mac_addr = NULL; 193 int ret; 194 195 mac = wiphy_priv(wiphy); 196 197 if (!mac) 198 return ERR_PTR(-EFAULT); 199 200 ret = qtnf_validate_iface_combinations(wiphy, NULL, type); 201 if (ret) { 202 pr_err("MAC%u invalid combination: failed to add type %d\n", 203 mac->macid, type); 204 return ERR_PTR(ret); 205 } 206 207 switch (type) { 208 case NL80211_IFTYPE_STATION: 209 case NL80211_IFTYPE_AP: 210 vif = qtnf_mac_get_free_vif(mac); 211 if (!vif) { 212 pr_err("MAC%u: no free VIF available\n", mac->macid); 213 return ERR_PTR(-EFAULT); 214 } 215 216 eth_zero_addr(vif->mac_addr); 217 eth_zero_addr(vif->bssid); 218 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 219 vif->sta_state = QTNF_STA_DISCONNECTED; 220 memset(&vif->wdev, 0, sizeof(vif->wdev)); 221 vif->wdev.wiphy = wiphy; 222 vif->wdev.iftype = type; 223 break; 224 default: 225 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 226 return ERR_PTR(-ENOTSUPP); 227 } 228 229 if (params) 230 mac_addr = params->macaddr; 231 232 if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) { 233 pr_err("VIF%u.%u: failed to add VIF\n", mac->macid, vif->vifid); 234 goto err_cmd; 235 } 236 237 if (!is_valid_ether_addr(vif->mac_addr)) { 238 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 239 mac->macid, vif->vifid, vif->mac_addr); 240 goto err_mac; 241 } 242 243 if (qtnf_core_net_attach(mac, vif, name, name_assign_t)) { 244 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 245 vif->vifid); 246 goto err_net; 247 } 248 249 vif->wdev.netdev = vif->netdev; 250 return &vif->wdev; 251 252 err_net: 253 vif->netdev = NULL; 254 err_mac: 255 qtnf_cmd_send_del_intf(vif); 256 err_cmd: 257 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 258 259 return ERR_PTR(-EFAULT); 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 } 344 345 return ret; 346 } 347 348 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 349 { 350 struct qtnf_wmac *mac = wiphy_priv(wiphy); 351 struct qtnf_vif *vif; 352 int ret; 353 354 vif = qtnf_mac_get_base_vif(mac); 355 if (!vif) { 356 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 357 return -EFAULT; 358 } 359 360 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 361 pr_err("MAC%u: can't modify retry params\n", mac->macid); 362 return -EOPNOTSUPP; 363 } 364 365 ret = qtnf_cmd_send_update_phy_params(mac, changed); 366 if (ret) 367 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 368 369 return ret; 370 } 371 372 static void 373 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 374 u16 frame_type, bool reg) 375 { 376 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 377 u16 mgmt_type; 378 u16 new_mask; 379 u16 qlink_frame_type = 0; 380 381 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 382 383 if (reg) 384 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 385 else 386 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 387 388 if (new_mask == vif->mgmt_frames_bitmask) 389 return; 390 391 switch (frame_type & IEEE80211_FCTL_STYPE) { 392 case IEEE80211_STYPE_REASSOC_REQ: 393 case IEEE80211_STYPE_ASSOC_REQ: 394 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 395 break; 396 case IEEE80211_STYPE_AUTH: 397 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 398 break; 399 case IEEE80211_STYPE_PROBE_REQ: 400 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 401 break; 402 case IEEE80211_STYPE_ACTION: 403 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 404 break; 405 default: 406 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 407 vif->mac->macid, vif->vifid, 408 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 409 return; 410 } 411 412 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 413 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 414 vif->mac->macid, vif->vifid, reg ? "" : "un", 415 frame_type); 416 return; 417 } 418 419 vif->mgmt_frames_bitmask = new_mask; 420 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 421 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 422 } 423 424 static int 425 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 426 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 427 { 428 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 429 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 430 u32 short_cookie = prandom_u32(); 431 u16 flags = 0; 432 u16 freq; 433 434 *cookie = short_cookie; 435 436 if (params->offchan) 437 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 438 439 if (params->no_cck) 440 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 441 442 if (params->dont_wait_for_ack) 443 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 444 445 /* If channel is not specified, pass "freq = 0" to tell device 446 * firmware to use current channel. 447 */ 448 if (params->chan) 449 freq = params->chan->center_freq; 450 else 451 freq = 0; 452 453 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 454 wdev->netdev->name, freq, 455 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 456 params->len, short_cookie, flags); 457 458 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 459 freq, 460 params->buf, params->len); 461 } 462 463 static int 464 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 465 const u8 *mac, struct station_info *sinfo) 466 { 467 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 468 469 sinfo->generation = vif->generation; 470 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 471 } 472 473 static int 474 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 475 int idx, u8 *mac, struct station_info *sinfo) 476 { 477 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 478 const struct qtnf_sta_node *sta_node; 479 int ret; 480 481 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 482 483 if (unlikely(!sta_node)) 484 return -ENOENT; 485 486 ether_addr_copy(mac, sta_node->mac_addr); 487 488 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo); 489 490 if (unlikely(ret == -ENOENT)) { 491 qtnf_sta_list_del(vif, mac); 492 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 493 sinfo->filled = 0; 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 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 526 vif->mac->macid, vif->vifid, key_index, pairwise); 527 528 return ret; 529 } 530 531 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 532 u8 key_index, bool unicast, bool multicast) 533 { 534 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 535 int ret; 536 537 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 538 if (ret) 539 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 540 vif->mac->macid, vif->vifid, key_index, unicast, 541 multicast); 542 543 return ret; 544 } 545 546 static int 547 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 548 u8 key_index) 549 { 550 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 551 int ret; 552 553 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 554 if (ret) 555 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 556 vif->mac->macid, vif->vifid, key_index); 557 558 return ret; 559 } 560 561 static int 562 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 563 const u8 *mac, struct station_parameters *params) 564 { 565 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 566 int ret; 567 568 ret = qtnf_cmd_send_change_sta(vif, mac, params); 569 if (ret) 570 pr_err("VIF%u.%u: failed to change STA %pM\n", 571 vif->mac->macid, vif->vifid, mac); 572 573 return ret; 574 } 575 576 static int 577 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 578 struct station_del_parameters *params) 579 { 580 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 581 int ret; 582 583 if (params->mac && 584 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 585 !is_broadcast_ether_addr(params->mac) && 586 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 587 return 0; 588 589 ret = qtnf_cmd_send_del_sta(vif, params); 590 if (ret) 591 pr_err("VIF%u.%u: failed to delete STA %pM\n", 592 vif->mac->macid, vif->vifid, params->mac); 593 return ret; 594 } 595 596 static int 597 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 598 { 599 struct qtnf_wmac *mac = wiphy_priv(wiphy); 600 601 cancel_delayed_work_sync(&mac->scan_timeout); 602 603 mac->scan_req = request; 604 605 if (qtnf_cmd_send_scan(mac)) { 606 pr_err("MAC%u: failed to start scan\n", mac->macid); 607 mac->scan_req = NULL; 608 return -EFAULT; 609 } 610 611 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 612 QTNF_SCAN_TIMEOUT_SEC * HZ); 613 614 return 0; 615 } 616 617 static int 618 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 619 struct cfg80211_connect_params *sme) 620 { 621 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 622 int ret; 623 624 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 625 return -EOPNOTSUPP; 626 627 if (vif->sta_state != QTNF_STA_DISCONNECTED) 628 return -EBUSY; 629 630 if (sme->bssid) 631 ether_addr_copy(vif->bssid, sme->bssid); 632 else 633 eth_zero_addr(vif->bssid); 634 635 ret = qtnf_cmd_send_connect(vif, sme); 636 if (ret) { 637 pr_err("VIF%u.%u: failed to connect\n", vif->mac->macid, 638 vif->vifid); 639 return ret; 640 } 641 642 vif->sta_state = QTNF_STA_CONNECTING; 643 return 0; 644 } 645 646 static int 647 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 648 u16 reason_code) 649 { 650 struct qtnf_wmac *mac = wiphy_priv(wiphy); 651 struct qtnf_vif *vif; 652 int ret = 0; 653 654 vif = qtnf_mac_get_base_vif(mac); 655 if (!vif) { 656 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 657 ret = -EFAULT; 658 goto out; 659 } 660 661 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 662 ret = -EOPNOTSUPP; 663 goto out; 664 } 665 666 qtnf_scan_done(mac, true); 667 668 if (vif->sta_state == QTNF_STA_DISCONNECTED) 669 goto out; 670 671 ret = qtnf_cmd_send_disconnect(vif, reason_code); 672 if (ret) { 673 pr_err("VIF%u.%u: failed to disconnect\n", mac->macid, 674 vif->vifid); 675 goto out; 676 } 677 678 out: 679 if (vif->sta_state == QTNF_STA_CONNECTING) 680 vif->sta_state = QTNF_STA_DISCONNECTED; 681 682 return ret; 683 } 684 685 static int 686 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 687 int idx, struct survey_info *survey) 688 { 689 struct qtnf_wmac *mac = wiphy_priv(wiphy); 690 struct wireless_dev *wdev = dev->ieee80211_ptr; 691 struct ieee80211_supported_band *sband; 692 const struct cfg80211_chan_def *chandef = &wdev->chandef; 693 struct ieee80211_channel *chan; 694 struct qtnf_chan_stats stats; 695 struct qtnf_vif *vif; 696 int ret; 697 698 vif = qtnf_netdev_get_priv(dev); 699 700 sband = wiphy->bands[NL80211_BAND_2GHZ]; 701 if (sband && idx >= sband->n_channels) { 702 idx -= sband->n_channels; 703 sband = NULL; 704 } 705 706 if (!sband) 707 sband = wiphy->bands[NL80211_BAND_5GHZ]; 708 709 if (!sband || idx >= sband->n_channels) 710 return -ENOENT; 711 712 chan = &sband->channels[idx]; 713 memset(&stats, 0, sizeof(stats)); 714 715 survey->channel = chan; 716 survey->filled = 0x0; 717 718 if (chandef->chan) { 719 if (chan->hw_value == chandef->chan->hw_value) 720 survey->filled = SURVEY_INFO_IN_USE; 721 } 722 723 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 724 switch (ret) { 725 case 0: 726 if (unlikely(stats.chan_num != chan->hw_value)) { 727 pr_err("received stats for channel %d instead of %d\n", 728 stats.chan_num, chan->hw_value); 729 ret = -EINVAL; 730 break; 731 } 732 733 survey->filled |= SURVEY_INFO_TIME | 734 SURVEY_INFO_TIME_SCAN | 735 SURVEY_INFO_TIME_BUSY | 736 SURVEY_INFO_TIME_RX | 737 SURVEY_INFO_TIME_TX | 738 SURVEY_INFO_NOISE_DBM; 739 740 survey->time_scan = stats.cca_try; 741 survey->time = stats.cca_try; 742 survey->time_tx = stats.cca_tx; 743 survey->time_rx = stats.cca_rx; 744 survey->time_busy = stats.cca_busy; 745 survey->noise = stats.chan_noise; 746 break; 747 case -ENOENT: 748 pr_debug("no stats for channel %u\n", chan->hw_value); 749 ret = 0; 750 break; 751 default: 752 pr_debug("failed to get chan(%d) stats from card\n", 753 chan->hw_value); 754 ret = -EINVAL; 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 goto out; 778 } 779 780 if (!cfg80211_chandef_valid(chandef)) { 781 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 782 ndev->name, chandef->chan->center_freq, 783 chandef->center_freq1, chandef->center_freq2, 784 chandef->width); 785 ret = -ENODATA; 786 } 787 788 out: 789 return ret; 790 } 791 792 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 793 struct cfg80211_csa_settings *params) 794 { 795 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 796 int ret; 797 798 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 799 params->chandef.chan->hw_value, params->count, 800 params->radar_required, params->block_tx); 801 802 if (!cfg80211_chandef_valid(¶ms->chandef)) { 803 pr_err("%s: invalid channel\n", dev->name); 804 return -EINVAL; 805 } 806 807 ret = qtnf_cmd_send_chan_switch(vif, params); 808 if (ret) 809 pr_warn("%s: failed to switch to channel (%u)\n", 810 dev->name, params->chandef.chan->hw_value); 811 812 return ret; 813 } 814 815 static int qtnf_start_radar_detection(struct wiphy *wiphy, 816 struct net_device *ndev, 817 struct cfg80211_chan_def *chandef, 818 u32 cac_time_ms) 819 { 820 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 821 int ret; 822 823 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 824 return -ENOTSUPP; 825 826 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 827 if (ret) 828 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 829 830 return ret; 831 } 832 833 static int qtnf_set_mac_acl(struct wiphy *wiphy, 834 struct net_device *dev, 835 const struct cfg80211_acl_data *params) 836 { 837 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 838 int ret; 839 840 ret = qtnf_cmd_set_mac_acl(vif, params); 841 if (ret) 842 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 843 844 return ret; 845 } 846 847 static struct cfg80211_ops qtn_cfg80211_ops = { 848 .add_virtual_intf = qtnf_add_virtual_intf, 849 .change_virtual_intf = qtnf_change_virtual_intf, 850 .del_virtual_intf = qtnf_del_virtual_intf, 851 .start_ap = qtnf_start_ap, 852 .change_beacon = qtnf_change_beacon, 853 .stop_ap = qtnf_stop_ap, 854 .set_wiphy_params = qtnf_set_wiphy_params, 855 .mgmt_frame_register = qtnf_mgmt_frame_register, 856 .mgmt_tx = qtnf_mgmt_tx, 857 .change_station = qtnf_change_station, 858 .del_station = qtnf_del_station, 859 .get_station = qtnf_get_station, 860 .dump_station = qtnf_dump_station, 861 .add_key = qtnf_add_key, 862 .del_key = qtnf_del_key, 863 .set_default_key = qtnf_set_default_key, 864 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 865 .scan = qtnf_scan, 866 .connect = qtnf_connect, 867 .disconnect = qtnf_disconnect, 868 .dump_survey = qtnf_dump_survey, 869 .get_channel = qtnf_get_channel, 870 .channel_switch = qtnf_channel_switch, 871 .start_radar_detection = qtnf_start_radar_detection, 872 .set_mac_acl = qtnf_set_mac_acl, 873 }; 874 875 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 876 struct regulatory_request *req) 877 { 878 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 879 struct qtnf_bus *bus = mac->bus; 880 struct wiphy *wiphy; 881 unsigned int mac_idx; 882 enum nl80211_band band; 883 int ret; 884 885 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 886 req->alpha2[0], req->alpha2[1]); 887 888 ret = qtnf_cmd_reg_notify(bus, req); 889 if (ret) { 890 if (ret != -EOPNOTSUPP && ret != -EALREADY) 891 pr_err("failed to update reg domain to %c%c\n", 892 req->alpha2[0], req->alpha2[1]); 893 return; 894 } 895 896 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 897 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 898 continue; 899 900 mac = bus->mac[mac_idx]; 901 if (!mac) 902 continue; 903 904 wiphy = priv_to_wiphy(mac); 905 906 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 907 if (!wiphy->bands[band]) 908 continue; 909 910 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 911 if (ret) 912 pr_err("failed to get chan info for mac %u band %u\n", 913 mac_idx, band); 914 } 915 } 916 } 917 918 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 919 { 920 struct wiphy *wiphy; 921 922 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 923 qtn_cfg80211_ops.start_radar_detection = NULL; 924 925 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 926 if (!wiphy) 927 return NULL; 928 929 set_wiphy_dev(wiphy, bus->dev); 930 931 return wiphy; 932 } 933 934 static int 935 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 936 { 937 struct ieee80211_iface_combination *if_comb; 938 size_t n_if_comb; 939 u16 interface_modes = 0; 940 size_t i, j; 941 942 if_comb = mac_info->if_comb; 943 n_if_comb = mac_info->n_if_comb; 944 945 if (!if_comb || !n_if_comb) 946 return -ENOENT; 947 948 for (i = 0; i < n_if_comb; i++) { 949 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 950 951 for (j = 0; j < if_comb[i].n_limits; j++) 952 interface_modes |= if_comb[i].limits[j].types; 953 } 954 955 wiphy->iface_combinations = if_comb; 956 wiphy->n_iface_combinations = n_if_comb; 957 wiphy->interface_modes = interface_modes; 958 959 return 0; 960 } 961 962 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 963 { 964 struct wiphy *wiphy = priv_to_wiphy(mac); 965 struct qtnf_mac_info *macinfo = &mac->macinfo; 966 int ret; 967 968 if (!wiphy) { 969 pr_err("invalid wiphy pointer\n"); 970 return -EFAULT; 971 } 972 973 wiphy->frag_threshold = macinfo->frag_thr; 974 wiphy->rts_threshold = macinfo->rts_thr; 975 wiphy->retry_short = macinfo->sretry_limit; 976 wiphy->retry_long = macinfo->lretry_limit; 977 wiphy->coverage_class = macinfo->coverage_class; 978 979 wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH; 980 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 981 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 982 wiphy->max_remain_on_channel_duration = 5000; 983 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 984 wiphy->max_num_csa_counters = 2; 985 986 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 987 if (ret) 988 goto out; 989 990 /* Initialize cipher suits */ 991 wiphy->cipher_suites = qtnf_cipher_suites; 992 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 993 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 994 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 995 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 996 WIPHY_FLAG_AP_UAPSD | 997 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 998 999 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1000 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1001 1002 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1003 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1004 1005 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1006 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1007 1008 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1009 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1010 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1011 1012 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1013 1014 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1015 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1016 1017 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1018 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1019 REGULATORY_CUSTOM_REG; 1020 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1021 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1022 } else { 1023 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1024 } 1025 1026 strlcpy(wiphy->fw_version, hw_info->fw_version, 1027 sizeof(wiphy->fw_version)); 1028 wiphy->hw_version = hw_info->hw_version; 1029 1030 ret = wiphy_register(wiphy); 1031 if (ret < 0) 1032 goto out; 1033 1034 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1035 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1036 else if (isalpha(hw_info->rd->alpha2[0]) && 1037 isalpha(hw_info->rd->alpha2[1])) 1038 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1039 1040 out: 1041 return ret; 1042 } 1043 1044 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1045 { 1046 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1047 1048 if (qtnf_cmd_send_updown_intf(vif, up)) 1049 pr_err("failed to send up/down command to FW\n"); 1050 } 1051 1052 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1053 { 1054 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1055 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1056 1057 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1058 switch (vif->sta_state) { 1059 case QTNF_STA_DISCONNECTED: 1060 break; 1061 case QTNF_STA_CONNECTING: 1062 cfg80211_connect_result(vif->netdev, 1063 vif->bssid, NULL, 0, 1064 NULL, 0, 1065 WLAN_STATUS_UNSPECIFIED_FAILURE, 1066 GFP_KERNEL); 1067 qtnf_disconnect(vif->wdev.wiphy, ndev, 1068 WLAN_REASON_DEAUTH_LEAVING); 1069 break; 1070 case QTNF_STA_CONNECTED: 1071 cfg80211_disconnected(vif->netdev, 1072 WLAN_REASON_DEAUTH_LEAVING, 1073 NULL, 0, 1, GFP_KERNEL); 1074 qtnf_disconnect(vif->wdev.wiphy, ndev, 1075 WLAN_REASON_DEAUTH_LEAVING); 1076 break; 1077 } 1078 1079 vif->sta_state = QTNF_STA_DISCONNECTED; 1080 } 1081 1082 qtnf_scan_done(mac, true); 1083 } 1084 1085 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1086 { 1087 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1088 switch (vif->sta_state) { 1089 case QTNF_STA_CONNECTING: 1090 cfg80211_connect_result(vif->netdev, 1091 vif->bssid, NULL, 0, 1092 NULL, 0, 1093 WLAN_STATUS_UNSPECIFIED_FAILURE, 1094 GFP_KERNEL); 1095 break; 1096 case QTNF_STA_CONNECTED: 1097 cfg80211_disconnected(vif->netdev, 1098 WLAN_REASON_DEAUTH_LEAVING, 1099 NULL, 0, 1, GFP_KERNEL); 1100 break; 1101 case QTNF_STA_DISCONNECTED: 1102 break; 1103 } 1104 } 1105 1106 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1107 vif->sta_state = QTNF_STA_DISCONNECTED; 1108 } 1109 1110 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1111 { 1112 switch (band->band) { 1113 case NL80211_BAND_2GHZ: 1114 band->bitrates = qtnf_rates_2g; 1115 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1116 break; 1117 case NL80211_BAND_5GHZ: 1118 band->bitrates = qtnf_rates_5g; 1119 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1120 break; 1121 default: 1122 band->bitrates = NULL; 1123 band->n_bitrates = 0; 1124 break; 1125 } 1126 } 1127