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 type to %d\n", 145 vif->mac->macid, vif->vifid, type); 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 memset(&vif->wdev, 0, sizeof(vif->wdev)); 220 vif->wdev.wiphy = wiphy; 221 vif->wdev.iftype = type; 222 break; 223 default: 224 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 225 return ERR_PTR(-ENOTSUPP); 226 } 227 228 if (params) 229 mac_addr = params->macaddr; 230 231 ret = qtnf_cmd_send_add_intf(vif, type, mac_addr); 232 if (ret) { 233 pr_err("VIF%u.%u: failed to add VIF %pM\n", 234 mac->macid, vif->vifid, mac_addr); 235 goto err_cmd; 236 } 237 238 if (!is_valid_ether_addr(vif->mac_addr)) { 239 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 240 mac->macid, vif->vifid, vif->mac_addr); 241 ret = -EINVAL; 242 goto err_mac; 243 } 244 245 ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); 246 if (ret) { 247 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 248 vif->vifid); 249 goto err_net; 250 } 251 252 vif->wdev.netdev = vif->netdev; 253 return &vif->wdev; 254 255 err_net: 256 vif->netdev = NULL; 257 err_mac: 258 qtnf_cmd_send_del_intf(vif); 259 err_cmd: 260 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 261 262 return ERR_PTR(ret); 263 } 264 265 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 266 const struct cfg80211_beacon_data *info) 267 { 268 int ret = 0; 269 270 if (!info->beacon_ies || !info->beacon_ies_len) { 271 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 272 NULL, 0); 273 } else { 274 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 275 info->beacon_ies, 276 info->beacon_ies_len); 277 } 278 279 if (ret) 280 goto out; 281 282 if (!info->proberesp_ies || !info->proberesp_ies_len) { 283 ret = qtnf_cmd_send_mgmt_set_appie(vif, 284 QLINK_IE_SET_PROBE_RESP_IES, 285 NULL, 0); 286 } else { 287 ret = qtnf_cmd_send_mgmt_set_appie(vif, 288 QLINK_IE_SET_PROBE_RESP_IES, 289 info->proberesp_ies, 290 info->proberesp_ies_len); 291 } 292 293 if (ret) 294 goto out; 295 296 if (!info->assocresp_ies || !info->assocresp_ies_len) { 297 ret = qtnf_cmd_send_mgmt_set_appie(vif, 298 QLINK_IE_SET_ASSOC_RESP, 299 NULL, 0); 300 } else { 301 ret = qtnf_cmd_send_mgmt_set_appie(vif, 302 QLINK_IE_SET_ASSOC_RESP, 303 info->assocresp_ies, 304 info->assocresp_ies_len); 305 } 306 307 out: 308 return ret; 309 } 310 311 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 312 struct cfg80211_beacon_data *info) 313 { 314 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 315 316 return qtnf_mgmt_set_appie(vif, info); 317 } 318 319 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 320 struct cfg80211_ap_settings *settings) 321 { 322 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 323 int ret; 324 325 ret = qtnf_cmd_send_start_ap(vif, settings); 326 if (ret) 327 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 328 vif->vifid); 329 330 return ret; 331 } 332 333 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 334 { 335 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 336 int ret; 337 338 qtnf_scan_done(vif->mac, true); 339 340 ret = qtnf_cmd_send_stop_ap(vif); 341 if (ret) 342 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 343 vif->mac->macid, vif->vifid); 344 345 netif_carrier_off(vif->netdev); 346 347 return ret; 348 } 349 350 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 351 { 352 struct qtnf_wmac *mac = wiphy_priv(wiphy); 353 struct qtnf_vif *vif; 354 int ret; 355 356 vif = qtnf_mac_get_base_vif(mac); 357 if (!vif) { 358 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 359 return -EFAULT; 360 } 361 362 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 363 pr_err("MAC%u: can't modify retry params\n", mac->macid); 364 return -EOPNOTSUPP; 365 } 366 367 ret = qtnf_cmd_send_update_phy_params(mac, changed); 368 if (ret) 369 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 370 371 return ret; 372 } 373 374 static void 375 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 376 u16 frame_type, bool reg) 377 { 378 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 379 u16 mgmt_type; 380 u16 new_mask; 381 u16 qlink_frame_type = 0; 382 383 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 384 385 if (reg) 386 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 387 else 388 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 389 390 if (new_mask == vif->mgmt_frames_bitmask) 391 return; 392 393 switch (frame_type & IEEE80211_FCTL_STYPE) { 394 case IEEE80211_STYPE_REASSOC_REQ: 395 case IEEE80211_STYPE_ASSOC_REQ: 396 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 397 break; 398 case IEEE80211_STYPE_AUTH: 399 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 400 break; 401 case IEEE80211_STYPE_PROBE_REQ: 402 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 403 break; 404 case IEEE80211_STYPE_ACTION: 405 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 406 break; 407 default: 408 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 409 vif->mac->macid, vif->vifid, 410 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 411 return; 412 } 413 414 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 415 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 416 vif->mac->macid, vif->vifid, reg ? "" : "un", 417 frame_type); 418 return; 419 } 420 421 vif->mgmt_frames_bitmask = new_mask; 422 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 423 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 424 } 425 426 static int 427 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 428 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 429 { 430 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 431 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 432 u32 short_cookie = prandom_u32(); 433 u16 flags = 0; 434 u16 freq; 435 436 *cookie = short_cookie; 437 438 if (params->offchan) 439 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 440 441 if (params->no_cck) 442 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 443 444 if (params->dont_wait_for_ack) 445 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 446 447 /* If channel is not specified, pass "freq = 0" to tell device 448 * firmware to use current channel. 449 */ 450 if (params->chan) 451 freq = params->chan->center_freq; 452 else 453 freq = 0; 454 455 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 456 wdev->netdev->name, freq, 457 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 458 params->len, short_cookie, flags); 459 460 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 461 freq, 462 params->buf, params->len); 463 } 464 465 static int 466 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 467 const u8 *mac, struct station_info *sinfo) 468 { 469 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 470 471 sinfo->generation = vif->generation; 472 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 473 } 474 475 static int 476 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 477 int idx, u8 *mac, struct station_info *sinfo) 478 { 479 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 480 const struct qtnf_sta_node *sta_node; 481 int ret; 482 483 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 484 485 if (unlikely(!sta_node)) 486 return -ENOENT; 487 488 ether_addr_copy(mac, sta_node->mac_addr); 489 490 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo); 491 492 if (unlikely(ret == -ENOENT)) { 493 qtnf_sta_list_del(vif, mac); 494 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 495 sinfo->filled = 0; 496 } 497 498 sinfo->generation = vif->generation; 499 500 return ret; 501 } 502 503 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 504 u8 key_index, bool pairwise, const u8 *mac_addr, 505 struct key_params *params) 506 { 507 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 508 int ret; 509 510 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 511 if (ret) 512 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 513 vif->mac->macid, vif->vifid, params->cipher, key_index, 514 pairwise); 515 516 return ret; 517 } 518 519 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 520 u8 key_index, bool pairwise, const u8 *mac_addr) 521 { 522 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 523 int ret; 524 525 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 526 if (ret) { 527 if (ret == -ENOENT) { 528 pr_debug("VIF%u.%u: key index %d out of bounds\n", 529 vif->mac->macid, vif->vifid, key_index); 530 } else { 531 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 532 vif->mac->macid, vif->vifid, 533 key_index, pairwise); 534 } 535 } 536 537 return ret; 538 } 539 540 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 541 u8 key_index, bool unicast, bool multicast) 542 { 543 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 544 int ret; 545 546 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 547 if (ret) 548 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 549 vif->mac->macid, vif->vifid, key_index, unicast, 550 multicast); 551 552 return ret; 553 } 554 555 static int 556 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 557 u8 key_index) 558 { 559 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 560 int ret; 561 562 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 563 if (ret) 564 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 565 vif->mac->macid, vif->vifid, key_index); 566 567 return ret; 568 } 569 570 static int 571 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 572 const u8 *mac, struct station_parameters *params) 573 { 574 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 575 int ret; 576 577 ret = qtnf_cmd_send_change_sta(vif, mac, params); 578 if (ret) 579 pr_err("VIF%u.%u: failed to change STA %pM\n", 580 vif->mac->macid, vif->vifid, mac); 581 582 return ret; 583 } 584 585 static int 586 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 587 struct station_del_parameters *params) 588 { 589 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 590 int ret; 591 592 if (params->mac && 593 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 594 !is_broadcast_ether_addr(params->mac) && 595 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 596 return 0; 597 598 ret = qtnf_cmd_send_del_sta(vif, params); 599 if (ret) 600 pr_err("VIF%u.%u: failed to delete STA %pM\n", 601 vif->mac->macid, vif->vifid, params->mac); 602 603 return ret; 604 } 605 606 static int 607 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 608 { 609 struct qtnf_wmac *mac = wiphy_priv(wiphy); 610 int ret; 611 612 cancel_delayed_work_sync(&mac->scan_timeout); 613 614 mac->scan_req = request; 615 616 ret = qtnf_cmd_send_scan(mac); 617 if (ret) { 618 pr_err("MAC%u: failed to start scan\n", mac->macid); 619 mac->scan_req = NULL; 620 goto out; 621 } 622 623 pr_debug("MAC%u: scan started\n", mac->macid); 624 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 625 QTNF_SCAN_TIMEOUT_SEC * HZ); 626 627 out: 628 return ret; 629 } 630 631 static int 632 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 633 struct cfg80211_connect_params *sme) 634 { 635 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 636 int ret; 637 638 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 639 return -EOPNOTSUPP; 640 641 if (sme->bssid) 642 ether_addr_copy(vif->bssid, sme->bssid); 643 else 644 eth_zero_addr(vif->bssid); 645 646 ret = qtnf_cmd_send_connect(vif, sme); 647 if (ret) { 648 pr_err("VIF%u.%u: failed to connect\n", 649 vif->mac->macid, vif->vifid); 650 goto out; 651 } 652 653 out: 654 return ret; 655 } 656 657 static int 658 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 659 u16 reason_code) 660 { 661 struct qtnf_wmac *mac = wiphy_priv(wiphy); 662 struct qtnf_vif *vif; 663 int ret = 0; 664 665 vif = qtnf_mac_get_base_vif(mac); 666 if (!vif) { 667 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 668 return -EFAULT; 669 } 670 671 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 672 ret = -EOPNOTSUPP; 673 goto out; 674 } 675 676 ret = qtnf_cmd_send_disconnect(vif, reason_code); 677 if (ret) 678 pr_err("VIF%u.%u: failed to disconnect\n", 679 mac->macid, vif->vifid); 680 681 if (vif->wdev.current_bss) { 682 netif_carrier_off(vif->netdev); 683 cfg80211_disconnected(vif->netdev, reason_code, 684 NULL, 0, true, GFP_KERNEL); 685 } 686 687 out: 688 return ret; 689 } 690 691 static int 692 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 693 int idx, struct survey_info *survey) 694 { 695 struct qtnf_wmac *mac = wiphy_priv(wiphy); 696 struct wireless_dev *wdev = dev->ieee80211_ptr; 697 struct ieee80211_supported_band *sband; 698 const struct cfg80211_chan_def *chandef = &wdev->chandef; 699 struct ieee80211_channel *chan; 700 struct qtnf_chan_stats stats; 701 int ret; 702 703 sband = wiphy->bands[NL80211_BAND_2GHZ]; 704 if (sband && idx >= sband->n_channels) { 705 idx -= sband->n_channels; 706 sband = NULL; 707 } 708 709 if (!sband) 710 sband = wiphy->bands[NL80211_BAND_5GHZ]; 711 712 if (!sband || idx >= sband->n_channels) 713 return -ENOENT; 714 715 chan = &sband->channels[idx]; 716 memset(&stats, 0, sizeof(stats)); 717 718 survey->channel = chan; 719 survey->filled = 0x0; 720 721 if (chandef->chan) { 722 if (chan->hw_value == chandef->chan->hw_value) 723 survey->filled = SURVEY_INFO_IN_USE; 724 } 725 726 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 727 switch (ret) { 728 case 0: 729 if (unlikely(stats.chan_num != chan->hw_value)) { 730 pr_err("received stats for channel %d instead of %d\n", 731 stats.chan_num, chan->hw_value); 732 ret = -EINVAL; 733 break; 734 } 735 736 survey->filled |= SURVEY_INFO_TIME | 737 SURVEY_INFO_TIME_SCAN | 738 SURVEY_INFO_TIME_BUSY | 739 SURVEY_INFO_TIME_RX | 740 SURVEY_INFO_TIME_TX | 741 SURVEY_INFO_NOISE_DBM; 742 743 survey->time_scan = stats.cca_try; 744 survey->time = stats.cca_try; 745 survey->time_tx = stats.cca_tx; 746 survey->time_rx = stats.cca_rx; 747 survey->time_busy = stats.cca_busy; 748 survey->noise = stats.chan_noise; 749 break; 750 case -ENOENT: 751 pr_debug("no stats for channel %u\n", chan->hw_value); 752 ret = 0; 753 break; 754 default: 755 pr_debug("failed to get chan(%d) stats from card\n", 756 chan->hw_value); 757 break; 758 } 759 760 return ret; 761 } 762 763 static int 764 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 765 struct cfg80211_chan_def *chandef) 766 { 767 struct net_device *ndev = wdev->netdev; 768 struct qtnf_vif *vif; 769 int ret; 770 771 if (!ndev) 772 return -ENODEV; 773 774 vif = qtnf_netdev_get_priv(wdev->netdev); 775 776 ret = qtnf_cmd_get_channel(vif, chandef); 777 if (ret) { 778 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 779 ret = -ENODATA; 780 goto out; 781 } 782 783 if (!cfg80211_chandef_valid(chandef)) { 784 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 785 ndev->name, chandef->chan->center_freq, 786 chandef->center_freq1, chandef->center_freq2, 787 chandef->width); 788 ret = -ENODATA; 789 goto out; 790 } 791 792 out: 793 return ret; 794 } 795 796 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 797 struct cfg80211_csa_settings *params) 798 { 799 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 800 int ret; 801 802 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 803 params->chandef.chan->hw_value, params->count, 804 params->radar_required, params->block_tx); 805 806 if (!cfg80211_chandef_valid(¶ms->chandef)) { 807 pr_err("%s: invalid channel\n", dev->name); 808 return -EINVAL; 809 } 810 811 ret = qtnf_cmd_send_chan_switch(vif, params); 812 if (ret) 813 pr_warn("%s: failed to switch to channel (%u)\n", 814 dev->name, params->chandef.chan->hw_value); 815 816 return ret; 817 } 818 819 static int qtnf_start_radar_detection(struct wiphy *wiphy, 820 struct net_device *ndev, 821 struct cfg80211_chan_def *chandef, 822 u32 cac_time_ms) 823 { 824 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 825 int ret; 826 827 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 828 return -ENOTSUPP; 829 830 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 831 if (ret) 832 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 833 834 return ret; 835 } 836 837 static int qtnf_set_mac_acl(struct wiphy *wiphy, 838 struct net_device *dev, 839 const struct cfg80211_acl_data *params) 840 { 841 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 842 int ret; 843 844 ret = qtnf_cmd_set_mac_acl(vif, params); 845 if (ret) 846 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 847 848 return ret; 849 } 850 851 static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 852 bool enabled, int timeout) 853 { 854 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 855 int ret; 856 857 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : 858 QLINK_PM_OFF, timeout); 859 if (ret) 860 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); 861 862 return ret; 863 } 864 865 #ifdef CONFIG_PM 866 static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) 867 { 868 struct qtnf_wmac *mac = wiphy_priv(wiphy); 869 struct qtnf_vif *vif; 870 int ret = 0; 871 872 vif = qtnf_mac_get_base_vif(mac); 873 if (!vif) { 874 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 875 ret = -EFAULT; 876 goto exit; 877 } 878 879 if (!wowlan) { 880 pr_debug("WoWLAN triggers are not enabled\n"); 881 qtnf_virtual_intf_cleanup(vif->netdev); 882 goto exit; 883 } 884 885 qtnf_scan_done(vif->mac, true); 886 887 ret = qtnf_cmd_send_wowlan_set(vif, wowlan); 888 if (ret) { 889 pr_err("MAC%u: failed to set WoWLAN triggers\n", 890 mac->macid); 891 goto exit; 892 } 893 894 exit: 895 return ret; 896 } 897 898 static int qtnf_resume(struct wiphy *wiphy) 899 { 900 struct qtnf_wmac *mac = wiphy_priv(wiphy); 901 struct qtnf_vif *vif; 902 int ret = 0; 903 904 vif = qtnf_mac_get_base_vif(mac); 905 if (!vif) { 906 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 907 ret = -EFAULT; 908 goto exit; 909 } 910 911 ret = qtnf_cmd_send_wowlan_set(vif, NULL); 912 if (ret) { 913 pr_err("MAC%u: failed to reset WoWLAN triggers\n", 914 mac->macid); 915 goto exit; 916 } 917 918 exit: 919 return ret; 920 } 921 922 static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) 923 { 924 struct qtnf_wmac *mac = wiphy_priv(wiphy); 925 struct qtnf_bus *bus = mac->bus; 926 927 device_set_wakeup_enable(bus->dev, enabled); 928 } 929 #endif 930 931 static struct cfg80211_ops qtn_cfg80211_ops = { 932 .add_virtual_intf = qtnf_add_virtual_intf, 933 .change_virtual_intf = qtnf_change_virtual_intf, 934 .del_virtual_intf = qtnf_del_virtual_intf, 935 .start_ap = qtnf_start_ap, 936 .change_beacon = qtnf_change_beacon, 937 .stop_ap = qtnf_stop_ap, 938 .set_wiphy_params = qtnf_set_wiphy_params, 939 .mgmt_frame_register = qtnf_mgmt_frame_register, 940 .mgmt_tx = qtnf_mgmt_tx, 941 .change_station = qtnf_change_station, 942 .del_station = qtnf_del_station, 943 .get_station = qtnf_get_station, 944 .dump_station = qtnf_dump_station, 945 .add_key = qtnf_add_key, 946 .del_key = qtnf_del_key, 947 .set_default_key = qtnf_set_default_key, 948 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 949 .scan = qtnf_scan, 950 .connect = qtnf_connect, 951 .disconnect = qtnf_disconnect, 952 .dump_survey = qtnf_dump_survey, 953 .get_channel = qtnf_get_channel, 954 .channel_switch = qtnf_channel_switch, 955 .start_radar_detection = qtnf_start_radar_detection, 956 .set_mac_acl = qtnf_set_mac_acl, 957 .set_power_mgmt = qtnf_set_power_mgmt, 958 #ifdef CONFIG_PM 959 .suspend = qtnf_suspend, 960 .resume = qtnf_resume, 961 .set_wakeup = qtnf_set_wakeup, 962 #endif 963 }; 964 965 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 966 struct regulatory_request *req) 967 { 968 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 969 struct qtnf_bus *bus = mac->bus; 970 struct wiphy *wiphy; 971 unsigned int mac_idx; 972 enum nl80211_band band; 973 int ret; 974 975 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 976 req->alpha2[0], req->alpha2[1]); 977 978 ret = qtnf_cmd_reg_notify(bus, req); 979 if (ret) { 980 if (ret == -EOPNOTSUPP) { 981 pr_warn("reg update not supported\n"); 982 } else if (ret == -EALREADY) { 983 pr_info("regulatory domain is already set to %c%c", 984 req->alpha2[0], req->alpha2[1]); 985 } else { 986 pr_err("failed to update reg domain to %c%c\n", 987 req->alpha2[0], req->alpha2[1]); 988 } 989 990 return; 991 } 992 993 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 994 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 995 continue; 996 997 mac = bus->mac[mac_idx]; 998 if (!mac) 999 continue; 1000 1001 wiphy = priv_to_wiphy(mac); 1002 1003 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 1004 if (!wiphy->bands[band]) 1005 continue; 1006 1007 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 1008 if (ret) 1009 pr_err("failed to get chan info for mac %u band %u\n", 1010 mac_idx, band); 1011 } 1012 } 1013 } 1014 1015 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 1016 { 1017 struct wiphy *wiphy; 1018 1019 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1020 qtn_cfg80211_ops.start_radar_detection = NULL; 1021 1022 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT)) 1023 qtn_cfg80211_ops.set_power_mgmt = NULL; 1024 1025 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 1026 if (!wiphy) 1027 return NULL; 1028 1029 set_wiphy_dev(wiphy, bus->dev); 1030 1031 return wiphy; 1032 } 1033 1034 static int 1035 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 1036 { 1037 struct ieee80211_iface_combination *if_comb; 1038 size_t n_if_comb; 1039 u16 interface_modes = 0; 1040 size_t i, j; 1041 1042 if_comb = mac_info->if_comb; 1043 n_if_comb = mac_info->n_if_comb; 1044 1045 if (!if_comb || !n_if_comb) 1046 return -ENOENT; 1047 1048 for (i = 0; i < n_if_comb; i++) { 1049 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 1050 1051 for (j = 0; j < if_comb[i].n_limits; j++) 1052 interface_modes |= if_comb[i].limits[j].types; 1053 } 1054 1055 wiphy->iface_combinations = if_comb; 1056 wiphy->n_iface_combinations = n_if_comb; 1057 wiphy->interface_modes = interface_modes; 1058 1059 return 0; 1060 } 1061 1062 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1063 { 1064 struct wiphy *wiphy = priv_to_wiphy(mac); 1065 struct qtnf_mac_info *macinfo = &mac->macinfo; 1066 int ret; 1067 1068 if (!wiphy) { 1069 pr_err("invalid wiphy pointer\n"); 1070 return -EFAULT; 1071 } 1072 1073 wiphy->frag_threshold = macinfo->frag_thr; 1074 wiphy->rts_threshold = macinfo->rts_thr; 1075 wiphy->retry_short = macinfo->sretry_limit; 1076 wiphy->retry_long = macinfo->lretry_limit; 1077 wiphy->coverage_class = macinfo->coverage_class; 1078 1079 wiphy->max_scan_ssids = 1080 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1; 1081 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1082 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1083 wiphy->max_remain_on_channel_duration = 5000; 1084 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 1085 wiphy->max_num_csa_counters = 2; 1086 1087 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 1088 if (ret) 1089 goto out; 1090 1091 /* Initialize cipher suits */ 1092 wiphy->cipher_suites = qtnf_cipher_suites; 1093 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1094 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1095 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1096 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1097 WIPHY_FLAG_AP_UAPSD | 1098 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 1099 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 1100 1101 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1102 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1103 1104 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1105 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1106 1107 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1108 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1109 1110 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1111 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1112 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1113 1114 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1115 1116 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1117 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1118 1119 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR) 1120 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 1121 1122 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN)) 1123 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; 1124 1125 #ifdef CONFIG_PM 1126 if (macinfo->wowlan) 1127 wiphy->wowlan = macinfo->wowlan; 1128 #endif 1129 1130 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1131 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1132 REGULATORY_CUSTOM_REG; 1133 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1134 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1135 } else { 1136 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1137 } 1138 1139 if (mac->macinfo.extended_capabilities_len) { 1140 wiphy->extended_capabilities = 1141 mac->macinfo.extended_capabilities; 1142 wiphy->extended_capabilities_mask = 1143 mac->macinfo.extended_capabilities_mask; 1144 wiphy->extended_capabilities_len = 1145 mac->macinfo.extended_capabilities_len; 1146 } 1147 1148 strlcpy(wiphy->fw_version, hw_info->fw_version, 1149 sizeof(wiphy->fw_version)); 1150 wiphy->hw_version = hw_info->hw_version; 1151 1152 ret = wiphy_register(wiphy); 1153 if (ret < 0) 1154 goto out; 1155 1156 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1157 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1158 else if (isalpha(hw_info->rd->alpha2[0]) && 1159 isalpha(hw_info->rd->alpha2[1])) 1160 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1161 1162 out: 1163 return ret; 1164 } 1165 1166 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1167 { 1168 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1169 1170 if (qtnf_cmd_send_updown_intf(vif, up)) 1171 pr_err("failed to send %s command to VIF%u.%u\n", 1172 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); 1173 } 1174 1175 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1176 { 1177 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1178 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1179 1180 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1181 qtnf_disconnect(vif->wdev.wiphy, ndev, 1182 WLAN_REASON_DEAUTH_LEAVING); 1183 1184 qtnf_scan_done(mac, true); 1185 } 1186 1187 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1188 { 1189 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1190 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, 1191 NULL, 0, 1, GFP_KERNEL); 1192 1193 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1194 } 1195 1196 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1197 { 1198 switch (band->band) { 1199 case NL80211_BAND_2GHZ: 1200 band->bitrates = qtnf_rates_2g; 1201 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1202 break; 1203 case NL80211_BAND_5GHZ: 1204 band->bitrates = qtnf_rates_5g; 1205 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1206 break; 1207 default: 1208 band->bitrates = NULL; 1209 band->n_bitrates = 0; 1210 break; 1211 } 1212 } 1213