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 switch (vif->wdev.iftype) { 484 case NL80211_IFTYPE_STATION: 485 if (idx != 0 || !vif->wdev.current_bss) 486 return -ENOENT; 487 488 ether_addr_copy(mac, vif->bssid); 489 break; 490 case NL80211_IFTYPE_AP: 491 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 492 if (unlikely(!sta_node)) 493 return -ENOENT; 494 495 ether_addr_copy(mac, sta_node->mac_addr); 496 break; 497 default: 498 return -ENOTSUPP; 499 } 500 501 ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); 502 503 if (vif->wdev.iftype == NL80211_IFTYPE_AP) { 504 if (ret == -ENOENT) { 505 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 506 sinfo->filled = 0; 507 } 508 } 509 510 sinfo->generation = vif->generation; 511 512 return ret; 513 } 514 515 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 516 u8 key_index, bool pairwise, const u8 *mac_addr, 517 struct key_params *params) 518 { 519 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 520 int ret; 521 522 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 523 if (ret) 524 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 525 vif->mac->macid, vif->vifid, params->cipher, key_index, 526 pairwise); 527 528 return ret; 529 } 530 531 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 532 u8 key_index, bool pairwise, const u8 *mac_addr) 533 { 534 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 535 int ret; 536 537 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 538 if (ret) { 539 if (ret == -ENOENT) { 540 pr_debug("VIF%u.%u: key index %d out of bounds\n", 541 vif->mac->macid, vif->vifid, key_index); 542 } else { 543 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 544 vif->mac->macid, vif->vifid, 545 key_index, pairwise); 546 } 547 } 548 549 return ret; 550 } 551 552 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 553 u8 key_index, bool unicast, bool multicast) 554 { 555 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 556 int ret; 557 558 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 559 if (ret) 560 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 561 vif->mac->macid, vif->vifid, key_index, unicast, 562 multicast); 563 564 return ret; 565 } 566 567 static int 568 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 569 u8 key_index) 570 { 571 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 572 int ret; 573 574 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 575 if (ret) 576 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 577 vif->mac->macid, vif->vifid, key_index); 578 579 return ret; 580 } 581 582 static int 583 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 584 const u8 *mac, struct station_parameters *params) 585 { 586 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 587 int ret; 588 589 ret = qtnf_cmd_send_change_sta(vif, mac, params); 590 if (ret) 591 pr_err("VIF%u.%u: failed to change STA %pM\n", 592 vif->mac->macid, vif->vifid, mac); 593 594 return ret; 595 } 596 597 static int 598 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 599 struct station_del_parameters *params) 600 { 601 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 602 int ret; 603 604 if (params->mac && 605 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 606 !is_broadcast_ether_addr(params->mac) && 607 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 608 return 0; 609 610 ret = qtnf_cmd_send_del_sta(vif, params); 611 if (ret) 612 pr_err("VIF%u.%u: failed to delete STA %pM\n", 613 vif->mac->macid, vif->vifid, params->mac); 614 615 return ret; 616 } 617 618 static int 619 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 620 { 621 struct qtnf_wmac *mac = wiphy_priv(wiphy); 622 int ret; 623 624 cancel_delayed_work_sync(&mac->scan_timeout); 625 626 mac->scan_req = request; 627 628 ret = qtnf_cmd_send_scan(mac); 629 if (ret) { 630 pr_err("MAC%u: failed to start scan\n", mac->macid); 631 mac->scan_req = NULL; 632 goto out; 633 } 634 635 pr_debug("MAC%u: scan started\n", mac->macid); 636 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 637 QTNF_SCAN_TIMEOUT_SEC * HZ); 638 639 out: 640 return ret; 641 } 642 643 static int 644 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 645 struct cfg80211_connect_params *sme) 646 { 647 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 648 int ret; 649 650 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 651 return -EOPNOTSUPP; 652 653 if (sme->bssid) 654 ether_addr_copy(vif->bssid, sme->bssid); 655 else 656 eth_zero_addr(vif->bssid); 657 658 ret = qtnf_cmd_send_connect(vif, sme); 659 if (ret) { 660 pr_err("VIF%u.%u: failed to connect\n", 661 vif->mac->macid, vif->vifid); 662 goto out; 663 } 664 665 out: 666 return ret; 667 } 668 669 static int 670 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 671 u16 reason_code) 672 { 673 struct qtnf_wmac *mac = wiphy_priv(wiphy); 674 struct qtnf_vif *vif; 675 int ret = 0; 676 677 vif = qtnf_mac_get_base_vif(mac); 678 if (!vif) { 679 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 680 return -EFAULT; 681 } 682 683 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 684 ret = -EOPNOTSUPP; 685 goto out; 686 } 687 688 ret = qtnf_cmd_send_disconnect(vif, reason_code); 689 if (ret) 690 pr_err("VIF%u.%u: failed to disconnect\n", 691 mac->macid, vif->vifid); 692 693 if (vif->wdev.current_bss) { 694 netif_carrier_off(vif->netdev); 695 cfg80211_disconnected(vif->netdev, reason_code, 696 NULL, 0, true, GFP_KERNEL); 697 } 698 699 out: 700 return ret; 701 } 702 703 static int 704 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 705 int idx, struct survey_info *survey) 706 { 707 struct qtnf_wmac *mac = wiphy_priv(wiphy); 708 struct wireless_dev *wdev = dev->ieee80211_ptr; 709 struct ieee80211_supported_band *sband; 710 const struct cfg80211_chan_def *chandef = &wdev->chandef; 711 struct ieee80211_channel *chan; 712 struct qtnf_chan_stats stats; 713 int ret; 714 715 sband = wiphy->bands[NL80211_BAND_2GHZ]; 716 if (sband && idx >= sband->n_channels) { 717 idx -= sband->n_channels; 718 sband = NULL; 719 } 720 721 if (!sband) 722 sband = wiphy->bands[NL80211_BAND_5GHZ]; 723 724 if (!sband || idx >= sband->n_channels) 725 return -ENOENT; 726 727 chan = &sband->channels[idx]; 728 memset(&stats, 0, sizeof(stats)); 729 730 survey->channel = chan; 731 survey->filled = 0x0; 732 733 if (chandef->chan) { 734 if (chan->hw_value == chandef->chan->hw_value) 735 survey->filled = SURVEY_INFO_IN_USE; 736 } 737 738 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 739 switch (ret) { 740 case 0: 741 if (unlikely(stats.chan_num != chan->hw_value)) { 742 pr_err("received stats for channel %d instead of %d\n", 743 stats.chan_num, chan->hw_value); 744 ret = -EINVAL; 745 break; 746 } 747 748 survey->filled |= SURVEY_INFO_TIME | 749 SURVEY_INFO_TIME_SCAN | 750 SURVEY_INFO_TIME_BUSY | 751 SURVEY_INFO_TIME_RX | 752 SURVEY_INFO_TIME_TX | 753 SURVEY_INFO_NOISE_DBM; 754 755 survey->time_scan = stats.cca_try; 756 survey->time = stats.cca_try; 757 survey->time_tx = stats.cca_tx; 758 survey->time_rx = stats.cca_rx; 759 survey->time_busy = stats.cca_busy; 760 survey->noise = stats.chan_noise; 761 break; 762 case -ENOENT: 763 pr_debug("no stats for channel %u\n", chan->hw_value); 764 ret = 0; 765 break; 766 default: 767 pr_debug("failed to get chan(%d) stats from card\n", 768 chan->hw_value); 769 break; 770 } 771 772 return ret; 773 } 774 775 static int 776 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 777 struct cfg80211_chan_def *chandef) 778 { 779 struct net_device *ndev = wdev->netdev; 780 struct qtnf_vif *vif; 781 int ret; 782 783 if (!ndev) 784 return -ENODEV; 785 786 vif = qtnf_netdev_get_priv(wdev->netdev); 787 788 ret = qtnf_cmd_get_channel(vif, chandef); 789 if (ret) { 790 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 791 ret = -ENODATA; 792 goto out; 793 } 794 795 if (!cfg80211_chandef_valid(chandef)) { 796 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 797 ndev->name, chandef->chan->center_freq, 798 chandef->center_freq1, chandef->center_freq2, 799 chandef->width); 800 ret = -ENODATA; 801 goto out; 802 } 803 804 out: 805 return ret; 806 } 807 808 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 809 struct cfg80211_csa_settings *params) 810 { 811 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 812 int ret; 813 814 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 815 params->chandef.chan->hw_value, params->count, 816 params->radar_required, params->block_tx); 817 818 if (!cfg80211_chandef_valid(¶ms->chandef)) { 819 pr_err("%s: invalid channel\n", dev->name); 820 return -EINVAL; 821 } 822 823 ret = qtnf_cmd_send_chan_switch(vif, params); 824 if (ret) 825 pr_warn("%s: failed to switch to channel (%u)\n", 826 dev->name, params->chandef.chan->hw_value); 827 828 return ret; 829 } 830 831 static int qtnf_start_radar_detection(struct wiphy *wiphy, 832 struct net_device *ndev, 833 struct cfg80211_chan_def *chandef, 834 u32 cac_time_ms) 835 { 836 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 837 int ret; 838 839 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 840 return -ENOTSUPP; 841 842 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 843 if (ret) 844 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 845 846 return ret; 847 } 848 849 static int qtnf_set_mac_acl(struct wiphy *wiphy, 850 struct net_device *dev, 851 const struct cfg80211_acl_data *params) 852 { 853 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 854 int ret; 855 856 ret = qtnf_cmd_set_mac_acl(vif, params); 857 if (ret) 858 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 859 860 return ret; 861 } 862 863 static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 864 bool enabled, int timeout) 865 { 866 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 867 int ret; 868 869 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : 870 QLINK_PM_OFF, timeout); 871 if (ret) 872 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); 873 874 return ret; 875 } 876 877 #ifdef CONFIG_PM 878 static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) 879 { 880 struct qtnf_wmac *mac = wiphy_priv(wiphy); 881 struct qtnf_vif *vif; 882 int ret = 0; 883 884 vif = qtnf_mac_get_base_vif(mac); 885 if (!vif) { 886 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 887 ret = -EFAULT; 888 goto exit; 889 } 890 891 if (!wowlan) { 892 pr_debug("WoWLAN triggers are not enabled\n"); 893 qtnf_virtual_intf_cleanup(vif->netdev); 894 goto exit; 895 } 896 897 qtnf_scan_done(vif->mac, true); 898 899 ret = qtnf_cmd_send_wowlan_set(vif, wowlan); 900 if (ret) { 901 pr_err("MAC%u: failed to set WoWLAN triggers\n", 902 mac->macid); 903 goto exit; 904 } 905 906 exit: 907 return ret; 908 } 909 910 static int qtnf_resume(struct wiphy *wiphy) 911 { 912 struct qtnf_wmac *mac = wiphy_priv(wiphy); 913 struct qtnf_vif *vif; 914 int ret = 0; 915 916 vif = qtnf_mac_get_base_vif(mac); 917 if (!vif) { 918 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 919 ret = -EFAULT; 920 goto exit; 921 } 922 923 ret = qtnf_cmd_send_wowlan_set(vif, NULL); 924 if (ret) { 925 pr_err("MAC%u: failed to reset WoWLAN triggers\n", 926 mac->macid); 927 goto exit; 928 } 929 930 exit: 931 return ret; 932 } 933 934 static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) 935 { 936 struct qtnf_wmac *mac = wiphy_priv(wiphy); 937 struct qtnf_bus *bus = mac->bus; 938 939 device_set_wakeup_enable(bus->dev, enabled); 940 } 941 #endif 942 943 static struct cfg80211_ops qtn_cfg80211_ops = { 944 .add_virtual_intf = qtnf_add_virtual_intf, 945 .change_virtual_intf = qtnf_change_virtual_intf, 946 .del_virtual_intf = qtnf_del_virtual_intf, 947 .start_ap = qtnf_start_ap, 948 .change_beacon = qtnf_change_beacon, 949 .stop_ap = qtnf_stop_ap, 950 .set_wiphy_params = qtnf_set_wiphy_params, 951 .mgmt_frame_register = qtnf_mgmt_frame_register, 952 .mgmt_tx = qtnf_mgmt_tx, 953 .change_station = qtnf_change_station, 954 .del_station = qtnf_del_station, 955 .get_station = qtnf_get_station, 956 .dump_station = qtnf_dump_station, 957 .add_key = qtnf_add_key, 958 .del_key = qtnf_del_key, 959 .set_default_key = qtnf_set_default_key, 960 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 961 .scan = qtnf_scan, 962 .connect = qtnf_connect, 963 .disconnect = qtnf_disconnect, 964 .dump_survey = qtnf_dump_survey, 965 .get_channel = qtnf_get_channel, 966 .channel_switch = qtnf_channel_switch, 967 .start_radar_detection = qtnf_start_radar_detection, 968 .set_mac_acl = qtnf_set_mac_acl, 969 .set_power_mgmt = qtnf_set_power_mgmt, 970 #ifdef CONFIG_PM 971 .suspend = qtnf_suspend, 972 .resume = qtnf_resume, 973 .set_wakeup = qtnf_set_wakeup, 974 #endif 975 }; 976 977 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 978 struct regulatory_request *req) 979 { 980 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 981 struct qtnf_bus *bus = mac->bus; 982 struct wiphy *wiphy; 983 unsigned int mac_idx; 984 enum nl80211_band band; 985 int ret; 986 987 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 988 req->alpha2[0], req->alpha2[1]); 989 990 ret = qtnf_cmd_reg_notify(bus, req); 991 if (ret) { 992 if (ret == -EOPNOTSUPP) { 993 pr_warn("reg update not supported\n"); 994 } else if (ret == -EALREADY) { 995 pr_info("regulatory domain is already set to %c%c", 996 req->alpha2[0], req->alpha2[1]); 997 } else { 998 pr_err("failed to update reg domain to %c%c\n", 999 req->alpha2[0], req->alpha2[1]); 1000 } 1001 1002 return; 1003 } 1004 1005 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 1006 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 1007 continue; 1008 1009 mac = bus->mac[mac_idx]; 1010 if (!mac) 1011 continue; 1012 1013 wiphy = priv_to_wiphy(mac); 1014 1015 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 1016 if (!wiphy->bands[band]) 1017 continue; 1018 1019 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 1020 if (ret) 1021 pr_err("failed to get chan info for mac %u band %u\n", 1022 mac_idx, band); 1023 } 1024 } 1025 } 1026 1027 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 1028 { 1029 struct wiphy *wiphy; 1030 1031 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1032 qtn_cfg80211_ops.start_radar_detection = NULL; 1033 1034 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT)) 1035 qtn_cfg80211_ops.set_power_mgmt = NULL; 1036 1037 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 1038 if (!wiphy) 1039 return NULL; 1040 1041 set_wiphy_dev(wiphy, bus->dev); 1042 1043 return wiphy; 1044 } 1045 1046 static int 1047 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 1048 { 1049 struct ieee80211_iface_combination *if_comb; 1050 size_t n_if_comb; 1051 u16 interface_modes = 0; 1052 size_t i, j; 1053 1054 if_comb = mac_info->if_comb; 1055 n_if_comb = mac_info->n_if_comb; 1056 1057 if (!if_comb || !n_if_comb) 1058 return -ENOENT; 1059 1060 for (i = 0; i < n_if_comb; i++) { 1061 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 1062 1063 for (j = 0; j < if_comb[i].n_limits; j++) 1064 interface_modes |= if_comb[i].limits[j].types; 1065 } 1066 1067 wiphy->iface_combinations = if_comb; 1068 wiphy->n_iface_combinations = n_if_comb; 1069 wiphy->interface_modes = interface_modes; 1070 1071 return 0; 1072 } 1073 1074 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1075 { 1076 struct wiphy *wiphy = priv_to_wiphy(mac); 1077 struct qtnf_mac_info *macinfo = &mac->macinfo; 1078 int ret; 1079 1080 if (!wiphy) { 1081 pr_err("invalid wiphy pointer\n"); 1082 return -EFAULT; 1083 } 1084 1085 wiphy->frag_threshold = macinfo->frag_thr; 1086 wiphy->rts_threshold = macinfo->rts_thr; 1087 wiphy->retry_short = macinfo->sretry_limit; 1088 wiphy->retry_long = macinfo->lretry_limit; 1089 wiphy->coverage_class = macinfo->coverage_class; 1090 1091 wiphy->max_scan_ssids = 1092 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1; 1093 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1094 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1095 wiphy->max_remain_on_channel_duration = 5000; 1096 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 1097 wiphy->max_num_csa_counters = 2; 1098 1099 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 1100 if (ret) 1101 goto out; 1102 1103 /* Initialize cipher suits */ 1104 wiphy->cipher_suites = qtnf_cipher_suites; 1105 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1106 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1107 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1108 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1109 WIPHY_FLAG_AP_UAPSD | 1110 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 1111 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 1112 1113 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1114 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1115 1116 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL) 1117 wiphy_ext_feature_set(wiphy, 1118 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 1119 1120 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1121 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1122 1123 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1124 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1125 1126 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1127 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1128 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1129 1130 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1131 1132 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1133 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1134 1135 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR) 1136 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 1137 1138 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN)) 1139 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; 1140 1141 #ifdef CONFIG_PM 1142 if (macinfo->wowlan) 1143 wiphy->wowlan = macinfo->wowlan; 1144 #endif 1145 1146 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1147 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1148 REGULATORY_CUSTOM_REG; 1149 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1150 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1151 } else { 1152 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1153 } 1154 1155 if (mac->macinfo.extended_capabilities_len) { 1156 wiphy->extended_capabilities = 1157 mac->macinfo.extended_capabilities; 1158 wiphy->extended_capabilities_mask = 1159 mac->macinfo.extended_capabilities_mask; 1160 wiphy->extended_capabilities_len = 1161 mac->macinfo.extended_capabilities_len; 1162 } 1163 1164 strlcpy(wiphy->fw_version, hw_info->fw_version, 1165 sizeof(wiphy->fw_version)); 1166 wiphy->hw_version = hw_info->hw_version; 1167 1168 ret = wiphy_register(wiphy); 1169 if (ret < 0) 1170 goto out; 1171 1172 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1173 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1174 else if (isalpha(hw_info->rd->alpha2[0]) && 1175 isalpha(hw_info->rd->alpha2[1])) 1176 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1177 1178 out: 1179 return ret; 1180 } 1181 1182 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1183 { 1184 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1185 1186 if (qtnf_cmd_send_updown_intf(vif, up)) 1187 pr_err("failed to send %s command to VIF%u.%u\n", 1188 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); 1189 } 1190 1191 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1192 { 1193 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1194 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1195 1196 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1197 qtnf_disconnect(vif->wdev.wiphy, ndev, 1198 WLAN_REASON_DEAUTH_LEAVING); 1199 1200 qtnf_scan_done(mac, true); 1201 } 1202 1203 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1204 { 1205 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1206 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, 1207 NULL, 0, 1, GFP_KERNEL); 1208 1209 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1210 } 1211 1212 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1213 { 1214 switch (band->band) { 1215 case NL80211_BAND_2GHZ: 1216 band->bitrates = qtnf_rates_2g; 1217 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1218 break; 1219 case NL80211_BAND_5GHZ: 1220 band->bitrates = qtnf_rates_5g; 1221 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1222 break; 1223 default: 1224 band->bitrates = NULL; 1225 band->n_bitrates = 0; 1226 break; 1227 } 1228 } 1229