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 = NULL; 126 int use4addr = 0; 127 int ret; 128 129 ret = qtnf_validate_iface_combinations(wiphy, vif, type); 130 if (ret) { 131 pr_err("VIF%u.%u combination check: failed to set type %d\n", 132 vif->mac->macid, vif->vifid, type); 133 return ret; 134 } 135 136 if (params) { 137 mac_addr = params->macaddr; 138 use4addr = params->use_4addr; 139 } 140 141 qtnf_scan_done(vif->mac, true); 142 143 ret = qtnf_cmd_send_change_intf_type(vif, type, use4addr, mac_addr); 144 if (ret) { 145 pr_err("VIF%u.%u: failed to change type to %d\n", 146 vif->mac->macid, vif->vifid, type); 147 return ret; 148 } 149 150 vif->wdev.iftype = type; 151 return 0; 152 } 153 154 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 155 { 156 struct net_device *netdev = wdev->netdev; 157 struct qtnf_vif *vif; 158 159 if (WARN_ON(!netdev)) 160 return -EFAULT; 161 162 vif = qtnf_netdev_get_priv(wdev->netdev); 163 164 qtnf_scan_done(vif->mac, true); 165 166 /* Stop data */ 167 netif_tx_stop_all_queues(netdev); 168 if (netif_carrier_ok(netdev)) 169 netif_carrier_off(netdev); 170 171 if (netdev->reg_state == NETREG_REGISTERED) 172 unregister_netdevice(netdev); 173 174 if (qtnf_cmd_send_del_intf(vif)) 175 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 176 vif->vifid); 177 178 vif->netdev->ieee80211_ptr = NULL; 179 vif->netdev = NULL; 180 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 181 182 return 0; 183 } 184 185 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 186 const char *name, 187 unsigned char name_assign_t, 188 enum nl80211_iftype type, 189 struct vif_params *params) 190 { 191 struct qtnf_wmac *mac; 192 struct qtnf_vif *vif; 193 u8 *mac_addr = NULL; 194 int use4addr = 0; 195 int ret; 196 197 mac = wiphy_priv(wiphy); 198 199 if (!mac) 200 return ERR_PTR(-EFAULT); 201 202 ret = qtnf_validate_iface_combinations(wiphy, NULL, type); 203 if (ret) { 204 pr_err("MAC%u invalid combination: failed to add type %d\n", 205 mac->macid, type); 206 return ERR_PTR(ret); 207 } 208 209 switch (type) { 210 case NL80211_IFTYPE_STATION: 211 case NL80211_IFTYPE_AP: 212 vif = qtnf_mac_get_free_vif(mac); 213 if (!vif) { 214 pr_err("MAC%u: no free VIF available\n", mac->macid); 215 return ERR_PTR(-EFAULT); 216 } 217 218 eth_zero_addr(vif->mac_addr); 219 eth_zero_addr(vif->bssid); 220 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 221 memset(&vif->wdev, 0, sizeof(vif->wdev)); 222 vif->wdev.wiphy = wiphy; 223 vif->wdev.iftype = type; 224 break; 225 default: 226 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 227 return ERR_PTR(-ENOTSUPP); 228 } 229 230 if (params) { 231 mac_addr = params->macaddr; 232 use4addr = params->use_4addr; 233 } 234 235 ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr); 236 if (ret) { 237 pr_err("VIF%u.%u: failed to add VIF %pM\n", 238 mac->macid, vif->vifid, mac_addr); 239 goto err_cmd; 240 } 241 242 if (!is_valid_ether_addr(vif->mac_addr)) { 243 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 244 mac->macid, vif->vifid, vif->mac_addr); 245 ret = -EINVAL; 246 goto err_mac; 247 } 248 249 ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); 250 if (ret) { 251 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 252 vif->vifid); 253 goto err_net; 254 } 255 256 vif->wdev.netdev = vif->netdev; 257 return &vif->wdev; 258 259 err_net: 260 vif->netdev = NULL; 261 err_mac: 262 qtnf_cmd_send_del_intf(vif); 263 err_cmd: 264 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 265 266 return ERR_PTR(ret); 267 } 268 269 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 270 const struct cfg80211_beacon_data *info) 271 { 272 int ret = 0; 273 274 if (!info->beacon_ies || !info->beacon_ies_len) { 275 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 276 NULL, 0); 277 } else { 278 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 279 info->beacon_ies, 280 info->beacon_ies_len); 281 } 282 283 if (ret) 284 goto out; 285 286 if (!info->proberesp_ies || !info->proberesp_ies_len) { 287 ret = qtnf_cmd_send_mgmt_set_appie(vif, 288 QLINK_IE_SET_PROBE_RESP_IES, 289 NULL, 0); 290 } else { 291 ret = qtnf_cmd_send_mgmt_set_appie(vif, 292 QLINK_IE_SET_PROBE_RESP_IES, 293 info->proberesp_ies, 294 info->proberesp_ies_len); 295 } 296 297 if (ret) 298 goto out; 299 300 if (!info->assocresp_ies || !info->assocresp_ies_len) { 301 ret = qtnf_cmd_send_mgmt_set_appie(vif, 302 QLINK_IE_SET_ASSOC_RESP, 303 NULL, 0); 304 } else { 305 ret = qtnf_cmd_send_mgmt_set_appie(vif, 306 QLINK_IE_SET_ASSOC_RESP, 307 info->assocresp_ies, 308 info->assocresp_ies_len); 309 } 310 311 out: 312 return ret; 313 } 314 315 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 316 struct cfg80211_beacon_data *info) 317 { 318 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 319 320 return qtnf_mgmt_set_appie(vif, info); 321 } 322 323 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 324 struct cfg80211_ap_settings *settings) 325 { 326 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 327 int ret; 328 329 ret = qtnf_cmd_send_start_ap(vif, settings); 330 if (ret) 331 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 332 vif->vifid); 333 334 return ret; 335 } 336 337 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 338 { 339 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 340 int ret; 341 342 qtnf_scan_done(vif->mac, true); 343 344 ret = qtnf_cmd_send_stop_ap(vif); 345 if (ret) 346 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 347 vif->mac->macid, vif->vifid); 348 349 netif_carrier_off(vif->netdev); 350 351 return ret; 352 } 353 354 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 355 { 356 struct qtnf_wmac *mac = wiphy_priv(wiphy); 357 struct qtnf_vif *vif; 358 int ret; 359 360 vif = qtnf_mac_get_base_vif(mac); 361 if (!vif) { 362 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 363 return -EFAULT; 364 } 365 366 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 367 pr_err("MAC%u: can't modify retry params\n", mac->macid); 368 return -EOPNOTSUPP; 369 } 370 371 ret = qtnf_cmd_send_update_phy_params(mac, changed); 372 if (ret) 373 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 374 375 return ret; 376 } 377 378 static void 379 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 380 u16 frame_type, bool reg) 381 { 382 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 383 u16 mgmt_type; 384 u16 new_mask; 385 u16 qlink_frame_type = 0; 386 387 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 388 389 if (reg) 390 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 391 else 392 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 393 394 if (new_mask == vif->mgmt_frames_bitmask) 395 return; 396 397 switch (frame_type & IEEE80211_FCTL_STYPE) { 398 case IEEE80211_STYPE_REASSOC_REQ: 399 case IEEE80211_STYPE_ASSOC_REQ: 400 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 401 break; 402 case IEEE80211_STYPE_AUTH: 403 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 404 break; 405 case IEEE80211_STYPE_PROBE_REQ: 406 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 407 break; 408 case IEEE80211_STYPE_ACTION: 409 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 410 break; 411 default: 412 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 413 vif->mac->macid, vif->vifid, 414 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 415 return; 416 } 417 418 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 419 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 420 vif->mac->macid, vif->vifid, reg ? "" : "un", 421 frame_type); 422 return; 423 } 424 425 vif->mgmt_frames_bitmask = new_mask; 426 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 427 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 428 } 429 430 static int 431 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 432 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 433 { 434 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 435 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 436 u32 short_cookie = prandom_u32(); 437 u16 flags = 0; 438 u16 freq; 439 440 *cookie = short_cookie; 441 442 if (params->offchan) 443 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 444 445 if (params->no_cck) 446 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 447 448 if (params->dont_wait_for_ack) 449 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 450 451 /* If channel is not specified, pass "freq = 0" to tell device 452 * firmware to use current channel. 453 */ 454 if (params->chan) 455 freq = params->chan->center_freq; 456 else 457 freq = 0; 458 459 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 460 wdev->netdev->name, freq, 461 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 462 params->len, short_cookie, flags); 463 464 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 465 freq, 466 params->buf, params->len); 467 } 468 469 static int 470 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 471 const u8 *mac, struct station_info *sinfo) 472 { 473 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 474 475 sinfo->generation = vif->generation; 476 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 477 } 478 479 static int 480 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 481 int idx, u8 *mac, struct station_info *sinfo) 482 { 483 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 484 const struct qtnf_sta_node *sta_node; 485 int ret; 486 487 switch (vif->wdev.iftype) { 488 case NL80211_IFTYPE_STATION: 489 if (idx != 0 || !vif->wdev.current_bss) 490 return -ENOENT; 491 492 ether_addr_copy(mac, vif->bssid); 493 break; 494 case NL80211_IFTYPE_AP: 495 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 496 if (unlikely(!sta_node)) 497 return -ENOENT; 498 499 ether_addr_copy(mac, sta_node->mac_addr); 500 break; 501 default: 502 return -ENOTSUPP; 503 } 504 505 ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); 506 507 if (vif->wdev.iftype == NL80211_IFTYPE_AP) { 508 if (ret == -ENOENT) { 509 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 510 sinfo->filled = 0; 511 } 512 } 513 514 sinfo->generation = vif->generation; 515 516 return ret; 517 } 518 519 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 520 u8 key_index, bool pairwise, const u8 *mac_addr, 521 struct key_params *params) 522 { 523 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 524 int ret; 525 526 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 527 if (ret) 528 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 529 vif->mac->macid, vif->vifid, params->cipher, key_index, 530 pairwise); 531 532 return ret; 533 } 534 535 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 536 u8 key_index, bool pairwise, const u8 *mac_addr) 537 { 538 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 539 int ret; 540 541 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 542 if (ret) { 543 if (ret == -ENOENT) { 544 pr_debug("VIF%u.%u: key index %d out of bounds\n", 545 vif->mac->macid, vif->vifid, key_index); 546 } else { 547 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 548 vif->mac->macid, vif->vifid, 549 key_index, pairwise); 550 } 551 } 552 553 return ret; 554 } 555 556 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 557 u8 key_index, bool unicast, bool multicast) 558 { 559 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 560 int ret; 561 562 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 563 if (ret) 564 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 565 vif->mac->macid, vif->vifid, key_index, unicast, 566 multicast); 567 568 return ret; 569 } 570 571 static int 572 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 573 u8 key_index) 574 { 575 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 576 int ret; 577 578 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 579 if (ret) 580 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 581 vif->mac->macid, vif->vifid, key_index); 582 583 return ret; 584 } 585 586 static int 587 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 588 const u8 *mac, struct station_parameters *params) 589 { 590 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 591 int ret; 592 593 ret = qtnf_cmd_send_change_sta(vif, mac, params); 594 if (ret) 595 pr_err("VIF%u.%u: failed to change STA %pM\n", 596 vif->mac->macid, vif->vifid, mac); 597 598 return ret; 599 } 600 601 static int 602 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 603 struct station_del_parameters *params) 604 { 605 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 606 int ret; 607 608 if (params->mac && 609 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 610 !is_broadcast_ether_addr(params->mac) && 611 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 612 return 0; 613 614 ret = qtnf_cmd_send_del_sta(vif, params); 615 if (ret) 616 pr_err("VIF%u.%u: failed to delete STA %pM\n", 617 vif->mac->macid, vif->vifid, params->mac); 618 619 return ret; 620 } 621 622 static int 623 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 624 { 625 struct qtnf_wmac *mac = wiphy_priv(wiphy); 626 int ret; 627 628 cancel_delayed_work_sync(&mac->scan_timeout); 629 630 mac->scan_req = request; 631 632 ret = qtnf_cmd_send_scan(mac); 633 if (ret) { 634 pr_err("MAC%u: failed to start scan\n", mac->macid); 635 mac->scan_req = NULL; 636 goto out; 637 } 638 639 pr_debug("MAC%u: scan started\n", mac->macid); 640 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, 641 QTNF_SCAN_TIMEOUT_SEC * HZ); 642 643 out: 644 return ret; 645 } 646 647 static int 648 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 649 struct cfg80211_connect_params *sme) 650 { 651 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 652 int ret; 653 654 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 655 return -EOPNOTSUPP; 656 657 if (sme->bssid) 658 ether_addr_copy(vif->bssid, sme->bssid); 659 else 660 eth_zero_addr(vif->bssid); 661 662 ret = qtnf_cmd_send_connect(vif, sme); 663 if (ret) { 664 pr_err("VIF%u.%u: failed to connect\n", 665 vif->mac->macid, vif->vifid); 666 goto out; 667 } 668 669 out: 670 return ret; 671 } 672 673 static int 674 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 675 u16 reason_code) 676 { 677 struct qtnf_wmac *mac = wiphy_priv(wiphy); 678 struct qtnf_vif *vif; 679 int ret = 0; 680 681 vif = qtnf_mac_get_base_vif(mac); 682 if (!vif) { 683 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 684 return -EFAULT; 685 } 686 687 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { 688 ret = -EOPNOTSUPP; 689 goto out; 690 } 691 692 ret = qtnf_cmd_send_disconnect(vif, reason_code); 693 if (ret) 694 pr_err("VIF%u.%u: failed to disconnect\n", 695 mac->macid, vif->vifid); 696 697 if (vif->wdev.current_bss) { 698 netif_carrier_off(vif->netdev); 699 cfg80211_disconnected(vif->netdev, reason_code, 700 NULL, 0, true, GFP_KERNEL); 701 } 702 703 out: 704 return ret; 705 } 706 707 static int 708 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 709 int idx, struct survey_info *survey) 710 { 711 struct qtnf_wmac *mac = wiphy_priv(wiphy); 712 struct wireless_dev *wdev = dev->ieee80211_ptr; 713 struct ieee80211_supported_band *sband; 714 const struct cfg80211_chan_def *chandef = &wdev->chandef; 715 struct ieee80211_channel *chan; 716 struct qtnf_chan_stats stats; 717 int ret; 718 719 sband = wiphy->bands[NL80211_BAND_2GHZ]; 720 if (sband && idx >= sband->n_channels) { 721 idx -= sband->n_channels; 722 sband = NULL; 723 } 724 725 if (!sband) 726 sband = wiphy->bands[NL80211_BAND_5GHZ]; 727 728 if (!sband || idx >= sband->n_channels) 729 return -ENOENT; 730 731 chan = &sband->channels[idx]; 732 memset(&stats, 0, sizeof(stats)); 733 734 survey->channel = chan; 735 survey->filled = 0x0; 736 737 if (chandef->chan) { 738 if (chan->hw_value == chandef->chan->hw_value) 739 survey->filled = SURVEY_INFO_IN_USE; 740 } 741 742 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 743 switch (ret) { 744 case 0: 745 if (unlikely(stats.chan_num != chan->hw_value)) { 746 pr_err("received stats for channel %d instead of %d\n", 747 stats.chan_num, chan->hw_value); 748 ret = -EINVAL; 749 break; 750 } 751 752 survey->filled |= SURVEY_INFO_TIME | 753 SURVEY_INFO_TIME_SCAN | 754 SURVEY_INFO_TIME_BUSY | 755 SURVEY_INFO_TIME_RX | 756 SURVEY_INFO_TIME_TX | 757 SURVEY_INFO_NOISE_DBM; 758 759 survey->time_scan = stats.cca_try; 760 survey->time = stats.cca_try; 761 survey->time_tx = stats.cca_tx; 762 survey->time_rx = stats.cca_rx; 763 survey->time_busy = stats.cca_busy; 764 survey->noise = stats.chan_noise; 765 break; 766 case -ENOENT: 767 pr_debug("no stats for channel %u\n", chan->hw_value); 768 ret = 0; 769 break; 770 default: 771 pr_debug("failed to get chan(%d) stats from card\n", 772 chan->hw_value); 773 break; 774 } 775 776 return ret; 777 } 778 779 static int 780 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 781 struct cfg80211_chan_def *chandef) 782 { 783 struct net_device *ndev = wdev->netdev; 784 struct qtnf_vif *vif; 785 int ret; 786 787 if (!ndev) 788 return -ENODEV; 789 790 vif = qtnf_netdev_get_priv(wdev->netdev); 791 792 ret = qtnf_cmd_get_channel(vif, chandef); 793 if (ret) { 794 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 795 ret = -ENODATA; 796 goto out; 797 } 798 799 if (!cfg80211_chandef_valid(chandef)) { 800 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", 801 ndev->name, chandef->chan->center_freq, 802 chandef->center_freq1, chandef->center_freq2, 803 chandef->width); 804 ret = -ENODATA; 805 goto out; 806 } 807 808 out: 809 return ret; 810 } 811 812 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 813 struct cfg80211_csa_settings *params) 814 { 815 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 816 int ret; 817 818 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 819 params->chandef.chan->hw_value, params->count, 820 params->radar_required, params->block_tx); 821 822 if (!cfg80211_chandef_valid(¶ms->chandef)) { 823 pr_err("%s: invalid channel\n", dev->name); 824 return -EINVAL; 825 } 826 827 ret = qtnf_cmd_send_chan_switch(vif, params); 828 if (ret) 829 pr_warn("%s: failed to switch to channel (%u)\n", 830 dev->name, params->chandef.chan->hw_value); 831 832 return ret; 833 } 834 835 static int qtnf_start_radar_detection(struct wiphy *wiphy, 836 struct net_device *ndev, 837 struct cfg80211_chan_def *chandef, 838 u32 cac_time_ms) 839 { 840 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 841 int ret; 842 843 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) 844 return -ENOTSUPP; 845 846 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); 847 if (ret) 848 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); 849 850 return ret; 851 } 852 853 static int qtnf_set_mac_acl(struct wiphy *wiphy, 854 struct net_device *dev, 855 const struct cfg80211_acl_data *params) 856 { 857 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 858 int ret; 859 860 ret = qtnf_cmd_set_mac_acl(vif, params); 861 if (ret) 862 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); 863 864 return ret; 865 } 866 867 static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 868 bool enabled, int timeout) 869 { 870 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 871 int ret; 872 873 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : 874 QLINK_PM_OFF, timeout); 875 if (ret) 876 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); 877 878 return ret; 879 } 880 881 #ifdef CONFIG_PM 882 static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) 883 { 884 struct qtnf_wmac *mac = wiphy_priv(wiphy); 885 struct qtnf_vif *vif; 886 int ret = 0; 887 888 vif = qtnf_mac_get_base_vif(mac); 889 if (!vif) { 890 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 891 ret = -EFAULT; 892 goto exit; 893 } 894 895 if (!wowlan) { 896 pr_debug("WoWLAN triggers are not enabled\n"); 897 qtnf_virtual_intf_cleanup(vif->netdev); 898 goto exit; 899 } 900 901 qtnf_scan_done(vif->mac, true); 902 903 ret = qtnf_cmd_send_wowlan_set(vif, wowlan); 904 if (ret) { 905 pr_err("MAC%u: failed to set WoWLAN triggers\n", 906 mac->macid); 907 goto exit; 908 } 909 910 exit: 911 return ret; 912 } 913 914 static int qtnf_resume(struct wiphy *wiphy) 915 { 916 struct qtnf_wmac *mac = wiphy_priv(wiphy); 917 struct qtnf_vif *vif; 918 int ret = 0; 919 920 vif = qtnf_mac_get_base_vif(mac); 921 if (!vif) { 922 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 923 ret = -EFAULT; 924 goto exit; 925 } 926 927 ret = qtnf_cmd_send_wowlan_set(vif, NULL); 928 if (ret) { 929 pr_err("MAC%u: failed to reset WoWLAN triggers\n", 930 mac->macid); 931 goto exit; 932 } 933 934 exit: 935 return ret; 936 } 937 938 static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) 939 { 940 struct qtnf_wmac *mac = wiphy_priv(wiphy); 941 struct qtnf_bus *bus = mac->bus; 942 943 device_set_wakeup_enable(bus->dev, enabled); 944 } 945 #endif 946 947 static struct cfg80211_ops qtn_cfg80211_ops = { 948 .add_virtual_intf = qtnf_add_virtual_intf, 949 .change_virtual_intf = qtnf_change_virtual_intf, 950 .del_virtual_intf = qtnf_del_virtual_intf, 951 .start_ap = qtnf_start_ap, 952 .change_beacon = qtnf_change_beacon, 953 .stop_ap = qtnf_stop_ap, 954 .set_wiphy_params = qtnf_set_wiphy_params, 955 .mgmt_frame_register = qtnf_mgmt_frame_register, 956 .mgmt_tx = qtnf_mgmt_tx, 957 .change_station = qtnf_change_station, 958 .del_station = qtnf_del_station, 959 .get_station = qtnf_get_station, 960 .dump_station = qtnf_dump_station, 961 .add_key = qtnf_add_key, 962 .del_key = qtnf_del_key, 963 .set_default_key = qtnf_set_default_key, 964 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 965 .scan = qtnf_scan, 966 .connect = qtnf_connect, 967 .disconnect = qtnf_disconnect, 968 .dump_survey = qtnf_dump_survey, 969 .get_channel = qtnf_get_channel, 970 .channel_switch = qtnf_channel_switch, 971 .start_radar_detection = qtnf_start_radar_detection, 972 .set_mac_acl = qtnf_set_mac_acl, 973 .set_power_mgmt = qtnf_set_power_mgmt, 974 #ifdef CONFIG_PM 975 .suspend = qtnf_suspend, 976 .resume = qtnf_resume, 977 .set_wakeup = qtnf_set_wakeup, 978 #endif 979 }; 980 981 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 982 struct regulatory_request *req) 983 { 984 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 985 struct qtnf_bus *bus = mac->bus; 986 struct wiphy *wiphy; 987 unsigned int mac_idx; 988 enum nl80211_band band; 989 int ret; 990 991 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 992 req->alpha2[0], req->alpha2[1]); 993 994 ret = qtnf_cmd_reg_notify(bus, req); 995 if (ret) { 996 if (ret == -EOPNOTSUPP) { 997 pr_warn("reg update not supported\n"); 998 } else if (ret == -EALREADY) { 999 pr_info("regulatory domain is already set to %c%c", 1000 req->alpha2[0], req->alpha2[1]); 1001 } else { 1002 pr_err("failed to update reg domain to %c%c\n", 1003 req->alpha2[0], req->alpha2[1]); 1004 } 1005 1006 return; 1007 } 1008 1009 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 1010 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 1011 continue; 1012 1013 mac = bus->mac[mac_idx]; 1014 if (!mac) 1015 continue; 1016 1017 wiphy = priv_to_wiphy(mac); 1018 1019 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 1020 if (!wiphy->bands[band]) 1021 continue; 1022 1023 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 1024 if (ret) 1025 pr_err("failed to get chan info for mac %u band %u\n", 1026 mac_idx, band); 1027 } 1028 } 1029 } 1030 1031 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 1032 { 1033 struct wiphy *wiphy; 1034 1035 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1036 qtn_cfg80211_ops.start_radar_detection = NULL; 1037 1038 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT)) 1039 qtn_cfg80211_ops.set_power_mgmt = NULL; 1040 1041 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 1042 if (!wiphy) 1043 return NULL; 1044 1045 set_wiphy_dev(wiphy, bus->dev); 1046 1047 return wiphy; 1048 } 1049 1050 static int 1051 qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) 1052 { 1053 struct ieee80211_iface_combination *if_comb; 1054 size_t n_if_comb; 1055 u16 interface_modes = 0; 1056 size_t i, j; 1057 1058 if_comb = mac_info->if_comb; 1059 n_if_comb = mac_info->n_if_comb; 1060 1061 if (!if_comb || !n_if_comb) 1062 return -ENOENT; 1063 1064 for (i = 0; i < n_if_comb; i++) { 1065 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; 1066 1067 for (j = 0; j < if_comb[i].n_limits; j++) 1068 interface_modes |= if_comb[i].limits[j].types; 1069 } 1070 1071 wiphy->iface_combinations = if_comb; 1072 wiphy->n_iface_combinations = n_if_comb; 1073 wiphy->interface_modes = interface_modes; 1074 1075 return 0; 1076 } 1077 1078 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1079 { 1080 struct wiphy *wiphy = priv_to_wiphy(mac); 1081 struct qtnf_mac_info *macinfo = &mac->macinfo; 1082 int ret; 1083 1084 if (!wiphy) { 1085 pr_err("invalid wiphy pointer\n"); 1086 return -EFAULT; 1087 } 1088 1089 wiphy->frag_threshold = macinfo->frag_thr; 1090 wiphy->rts_threshold = macinfo->rts_thr; 1091 wiphy->retry_short = macinfo->sretry_limit; 1092 wiphy->retry_long = macinfo->lretry_limit; 1093 wiphy->coverage_class = macinfo->coverage_class; 1094 1095 wiphy->max_scan_ssids = 1096 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1; 1097 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1098 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1099 wiphy->max_remain_on_channel_duration = 5000; 1100 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; 1101 wiphy->max_num_csa_counters = 2; 1102 1103 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); 1104 if (ret) 1105 goto out; 1106 1107 /* Initialize cipher suits */ 1108 wiphy->cipher_suites = qtnf_cipher_suites; 1109 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1110 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1111 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1112 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1113 WIPHY_FLAG_AP_UAPSD | 1114 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 1115 WIPHY_FLAG_4ADDR_STATION; 1116 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 1117 1118 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD) 1119 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); 1120 1121 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL) 1122 wiphy_ext_feature_set(wiphy, 1123 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 1124 1125 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1126 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1127 1128 wiphy->available_antennas_tx = macinfo->num_tx_chain; 1129 wiphy->available_antennas_rx = macinfo->num_rx_chain; 1130 1131 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; 1132 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; 1133 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; 1134 1135 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1136 1137 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 1138 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 1139 1140 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR) 1141 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 1142 1143 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN)) 1144 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; 1145 1146 #ifdef CONFIG_PM 1147 if (macinfo->wowlan) 1148 wiphy->wowlan = macinfo->wowlan; 1149 #endif 1150 1151 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 1152 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1153 REGULATORY_CUSTOM_REG; 1154 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1155 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1156 } else { 1157 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1158 } 1159 1160 if (mac->macinfo.extended_capabilities_len) { 1161 wiphy->extended_capabilities = 1162 mac->macinfo.extended_capabilities; 1163 wiphy->extended_capabilities_mask = 1164 mac->macinfo.extended_capabilities_mask; 1165 wiphy->extended_capabilities_len = 1166 mac->macinfo.extended_capabilities_len; 1167 } 1168 1169 strlcpy(wiphy->fw_version, hw_info->fw_version, 1170 sizeof(wiphy->fw_version)); 1171 wiphy->hw_version = hw_info->hw_version; 1172 1173 ret = wiphy_register(wiphy); 1174 if (ret < 0) 1175 goto out; 1176 1177 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1178 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1179 else if (isalpha(hw_info->rd->alpha2[0]) && 1180 isalpha(hw_info->rd->alpha2[1])) 1181 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1182 1183 out: 1184 return ret; 1185 } 1186 1187 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1188 { 1189 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1190 1191 if (qtnf_cmd_send_updown_intf(vif, up)) 1192 pr_err("failed to send %s command to VIF%u.%u\n", 1193 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); 1194 } 1195 1196 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1197 { 1198 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1199 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1200 1201 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1202 qtnf_disconnect(vif->wdev.wiphy, ndev, 1203 WLAN_REASON_DEAUTH_LEAVING); 1204 1205 qtnf_scan_done(mac, true); 1206 } 1207 1208 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1209 { 1210 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) 1211 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, 1212 NULL, 0, 1, GFP_KERNEL); 1213 1214 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1215 } 1216 1217 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1218 { 1219 switch (band->band) { 1220 case NL80211_BAND_2GHZ: 1221 band->bitrates = qtnf_rates_2g; 1222 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1223 break; 1224 case NL80211_BAND_5GHZ: 1225 band->bitrates = qtnf_rates_5g; 1226 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1227 break; 1228 default: 1229 band->bitrates = NULL; 1230 band->n_bitrates = 0; 1231 break; 1232 } 1233 } 1234