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 }, 78 }; 79 80 static int 81 qtnf_change_virtual_intf(struct wiphy *wiphy, 82 struct net_device *dev, 83 enum nl80211_iftype type, 84 struct vif_params *params) 85 { 86 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 87 u8 *mac_addr; 88 int ret; 89 90 if (params) 91 mac_addr = params->macaddr; 92 else 93 mac_addr = NULL; 94 95 qtnf_scan_done(vif->mac, true); 96 97 ret = qtnf_cmd_send_change_intf_type(vif, type, mac_addr); 98 if (ret) { 99 pr_err("VIF%u.%u: failed to change VIF type: %d\n", 100 vif->mac->macid, vif->vifid, ret); 101 return ret; 102 } 103 104 vif->wdev.iftype = type; 105 return 0; 106 } 107 108 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 109 { 110 struct net_device *netdev = wdev->netdev; 111 struct qtnf_vif *vif; 112 113 if (WARN_ON(!netdev)) 114 return -EFAULT; 115 116 vif = qtnf_netdev_get_priv(wdev->netdev); 117 118 if (qtnf_cmd_send_del_intf(vif)) 119 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 120 vif->vifid); 121 122 /* Stop data */ 123 netif_tx_stop_all_queues(netdev); 124 if (netif_carrier_ok(netdev)) 125 netif_carrier_off(netdev); 126 127 if (netdev->reg_state == NETREG_REGISTERED) 128 unregister_netdevice(netdev); 129 130 vif->netdev->ieee80211_ptr = NULL; 131 vif->netdev = NULL; 132 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 133 eth_zero_addr(vif->mac_addr); 134 135 return 0; 136 } 137 138 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 139 const char *name, 140 unsigned char name_assign_t, 141 enum nl80211_iftype type, 142 struct vif_params *params) 143 { 144 struct qtnf_wmac *mac; 145 struct qtnf_vif *vif; 146 u8 *mac_addr = NULL; 147 148 mac = wiphy_priv(wiphy); 149 150 if (!mac) 151 return ERR_PTR(-EFAULT); 152 153 switch (type) { 154 case NL80211_IFTYPE_STATION: 155 case NL80211_IFTYPE_AP: 156 vif = qtnf_mac_get_free_vif(mac); 157 if (!vif) { 158 pr_err("MAC%u: no free VIF available\n", mac->macid); 159 return ERR_PTR(-EFAULT); 160 } 161 162 eth_zero_addr(vif->mac_addr); 163 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 164 vif->wdev.wiphy = wiphy; 165 vif->wdev.iftype = type; 166 vif->sta_state = QTNF_STA_DISCONNECTED; 167 break; 168 default: 169 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 170 return ERR_PTR(-ENOTSUPP); 171 } 172 173 if (params) 174 mac_addr = params->macaddr; 175 176 if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) { 177 pr_err("VIF%u.%u: failed to add VIF\n", mac->macid, vif->vifid); 178 goto err_cmd; 179 } 180 181 if (!is_valid_ether_addr(vif->mac_addr)) { 182 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 183 mac->macid, vif->vifid, vif->mac_addr); 184 goto err_mac; 185 } 186 187 if (qtnf_core_net_attach(mac, vif, name, name_assign_t, type)) { 188 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 189 vif->vifid); 190 goto err_net; 191 } 192 193 vif->wdev.netdev = vif->netdev; 194 return &vif->wdev; 195 196 err_net: 197 vif->netdev = NULL; 198 err_mac: 199 qtnf_cmd_send_del_intf(vif); 200 err_cmd: 201 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 202 203 return ERR_PTR(-EFAULT); 204 } 205 206 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 207 const struct cfg80211_beacon_data *info) 208 { 209 int ret = 0; 210 211 if (!info->beacon_ies || !info->beacon_ies_len) { 212 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_MGMT_FRAME_BEACON, 213 NULL, 0); 214 } else { 215 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_MGMT_FRAME_BEACON, 216 info->beacon_ies, 217 info->beacon_ies_len); 218 } 219 220 if (ret) 221 goto out; 222 223 if (!info->proberesp_ies || !info->proberesp_ies_len) { 224 ret = qtnf_cmd_send_mgmt_set_appie(vif, 225 QLINK_MGMT_FRAME_PROBE_RESP, 226 NULL, 0); 227 } else { 228 ret = qtnf_cmd_send_mgmt_set_appie(vif, 229 QLINK_MGMT_FRAME_PROBE_RESP, 230 info->proberesp_ies, 231 info->proberesp_ies_len); 232 } 233 234 if (ret) 235 goto out; 236 237 if (!info->assocresp_ies || !info->assocresp_ies_len) { 238 ret = qtnf_cmd_send_mgmt_set_appie(vif, 239 QLINK_MGMT_FRAME_ASSOC_RESP, 240 NULL, 0); 241 } else { 242 ret = qtnf_cmd_send_mgmt_set_appie(vif, 243 QLINK_MGMT_FRAME_ASSOC_RESP, 244 info->assocresp_ies, 245 info->assocresp_ies_len); 246 } 247 248 out: 249 return ret; 250 } 251 252 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 253 struct cfg80211_beacon_data *info) 254 { 255 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 256 257 if (!(vif->bss_status & QTNF_STATE_AP_START)) { 258 pr_err("VIF%u.%u: not started\n", vif->mac->macid, vif->vifid); 259 return -EFAULT; 260 } 261 262 return qtnf_mgmt_set_appie(vif, info); 263 } 264 265 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 266 struct cfg80211_ap_settings *settings) 267 { 268 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 269 struct qtnf_wmac *mac = wiphy_priv(wiphy); 270 struct qtnf_bss_config *bss_cfg; 271 int ret; 272 273 if (!cfg80211_chandef_identical(&mac->chandef, &settings->chandef)) { 274 memcpy(&mac->chandef, &settings->chandef, sizeof(mac->chandef)); 275 if (vif->vifid != 0) 276 pr_warn("%s: unexpected chan %u (%u MHz)\n", dev->name, 277 settings->chandef.chan->hw_value, 278 settings->chandef.chan->center_freq); 279 } 280 281 bss_cfg = &vif->bss_cfg; 282 memset(bss_cfg, 0, sizeof(*bss_cfg)); 283 284 bss_cfg->bcn_period = settings->beacon_interval; 285 bss_cfg->dtim = settings->dtim_period; 286 bss_cfg->auth_type = settings->auth_type; 287 bss_cfg->privacy = settings->privacy; 288 289 bss_cfg->ssid_len = settings->ssid_len; 290 memcpy(&bss_cfg->ssid, settings->ssid, bss_cfg->ssid_len); 291 292 memcpy(&bss_cfg->crypto, &settings->crypto, 293 sizeof(struct cfg80211_crypto_settings)); 294 295 ret = qtnf_cmd_send_config_ap(vif); 296 if (ret) { 297 pr_err("VIF%u.%u: failed to push config to FW\n", 298 vif->mac->macid, vif->vifid); 299 goto out; 300 } 301 302 if (!(vif->bss_status & QTNF_STATE_AP_CONFIG)) { 303 pr_err("VIF%u.%u: AP config failed in FW\n", vif->mac->macid, 304 vif->vifid); 305 ret = -EFAULT; 306 goto out; 307 } 308 309 ret = qtnf_mgmt_set_appie(vif, &settings->beacon); 310 if (ret) { 311 pr_err("VIF%u.%u: failed to add IEs to beacon\n", 312 vif->mac->macid, vif->vifid); 313 goto out; 314 } 315 316 ret = qtnf_cmd_send_start_ap(vif); 317 if (ret) { 318 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 319 vif->vifid); 320 goto out; 321 } 322 323 if (!(vif->bss_status & QTNF_STATE_AP_START)) { 324 pr_err("VIF%u.%u: FW failed to start AP operation\n", 325 vif->mac->macid, vif->vifid); 326 ret = -EFAULT; 327 } 328 329 out: 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 ret = qtnf_cmd_send_stop_ap(vif); 339 if (ret) { 340 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 341 vif->mac->macid, vif->vifid); 342 vif->bss_status &= ~QTNF_STATE_AP_START; 343 vif->bss_status &= ~QTNF_STATE_AP_CONFIG; 344 345 netif_carrier_off(vif->netdev); 346 } 347 348 return ret; 349 } 350 351 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 352 { 353 struct qtnf_wmac *mac = wiphy_priv(wiphy); 354 struct qtnf_vif *vif; 355 int ret; 356 357 vif = qtnf_mac_get_base_vif(mac); 358 if (!vif) { 359 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 360 return -EFAULT; 361 } 362 363 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 364 pr_err("MAC%u: can't modify retry params\n", mac->macid); 365 return -EOPNOTSUPP; 366 } 367 368 ret = qtnf_cmd_send_update_phy_params(mac, changed); 369 if (ret) 370 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 371 372 return ret; 373 } 374 375 static void 376 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 377 u16 frame_type, bool reg) 378 { 379 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 380 u16 mgmt_type; 381 u16 new_mask; 382 u16 qlink_frame_type = 0; 383 384 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 385 386 if (reg) 387 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 388 else 389 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 390 391 if (new_mask == vif->mgmt_frames_bitmask) 392 return; 393 394 switch (frame_type & IEEE80211_FCTL_STYPE) { 395 case IEEE80211_STYPE_PROBE_REQ: 396 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 397 break; 398 case IEEE80211_STYPE_ACTION: 399 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 400 break; 401 default: 402 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 403 vif->mac->macid, vif->vifid, 404 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 405 return; 406 } 407 408 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 409 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 410 vif->mac->macid, vif->vifid, reg ? "" : "un", 411 frame_type); 412 return; 413 } 414 415 vif->mgmt_frames_bitmask = new_mask; 416 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 417 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 418 } 419 420 static int 421 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 422 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 423 { 424 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 425 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 426 u32 short_cookie = prandom_u32(); 427 u16 flags = 0; 428 429 *cookie = short_cookie; 430 431 if (params->offchan) 432 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 433 434 if (params->no_cck) 435 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 436 437 if (params->dont_wait_for_ack) 438 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 439 440 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 441 wdev->netdev->name, params->chan->center_freq, 442 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 443 params->len, short_cookie, flags); 444 445 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 446 params->chan->center_freq, 447 params->buf, params->len); 448 } 449 450 static int 451 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 452 const u8 *mac, struct station_info *sinfo) 453 { 454 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 455 456 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 457 } 458 459 static int 460 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 461 int idx, u8 *mac, struct station_info *sinfo) 462 { 463 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 464 const struct qtnf_sta_node *sta_node; 465 int ret; 466 467 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 468 469 if (unlikely(!sta_node)) 470 return -ENOENT; 471 472 ether_addr_copy(mac, sta_node->mac_addr); 473 474 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo); 475 476 if (unlikely(ret == -ENOENT)) { 477 qtnf_sta_list_del(&vif->sta_list, mac); 478 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 479 sinfo->filled = 0; 480 } 481 482 return ret; 483 } 484 485 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 486 u8 key_index, bool pairwise, const u8 *mac_addr, 487 struct key_params *params) 488 { 489 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 490 int ret; 491 492 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 493 if (ret) 494 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 495 vif->mac->macid, vif->vifid, params->cipher, key_index, 496 pairwise); 497 498 return ret; 499 } 500 501 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_index, bool pairwise, const u8 *mac_addr) 503 { 504 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 505 int ret; 506 507 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 508 if (ret) 509 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 510 vif->mac->macid, vif->vifid, key_index, pairwise); 511 512 return ret; 513 } 514 515 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 516 u8 key_index, bool unicast, bool multicast) 517 { 518 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 519 int ret; 520 521 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 522 if (ret) 523 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 524 vif->mac->macid, vif->vifid, key_index, unicast, 525 multicast); 526 527 return ret; 528 } 529 530 static int 531 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 532 u8 key_index) 533 { 534 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 535 int ret; 536 537 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 538 if (ret) 539 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 540 vif->mac->macid, vif->vifid, key_index); 541 542 return ret; 543 } 544 545 static int 546 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 547 const u8 *mac, struct station_parameters *params) 548 { 549 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 550 int ret; 551 552 ret = qtnf_cmd_send_change_sta(vif, mac, params); 553 if (ret) 554 pr_err("VIF%u.%u: failed to change STA %pM\n", 555 vif->mac->macid, vif->vifid, mac); 556 557 return ret; 558 } 559 560 static int 561 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 562 struct station_del_parameters *params) 563 { 564 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 565 int ret; 566 567 if (params->mac && 568 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 569 !is_broadcast_ether_addr(params->mac) && 570 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 571 return 0; 572 573 qtnf_scan_done(vif->mac, true); 574 575 ret = qtnf_cmd_send_del_sta(vif, params); 576 if (ret) 577 pr_err("VIF%u.%u: failed to delete STA %pM\n", 578 vif->mac->macid, vif->vifid, params->mac); 579 return ret; 580 } 581 582 static void qtnf_scan_timeout(unsigned long data) 583 { 584 struct qtnf_wmac *mac = (struct qtnf_wmac *)data; 585 586 pr_warn("mac%d scan timed out\n", mac->macid); 587 qtnf_scan_done(mac, true); 588 } 589 590 static int 591 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 592 { 593 struct qtnf_wmac *mac = wiphy_priv(wiphy); 594 595 mac->scan_req = request; 596 597 if (qtnf_cmd_send_scan(mac)) { 598 pr_err("MAC%u: failed to start scan\n", mac->macid); 599 mac->scan_req = NULL; 600 return -EFAULT; 601 } 602 603 mac->scan_timeout.data = (unsigned long)mac; 604 mac->scan_timeout.function = qtnf_scan_timeout; 605 mod_timer(&mac->scan_timeout, 606 jiffies + QTNF_SCAN_TIMEOUT_SEC * HZ); 607 608 return 0; 609 } 610 611 static int 612 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 613 struct cfg80211_connect_params *sme) 614 { 615 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 616 struct qtnf_wmac *mac = wiphy_priv(wiphy); 617 struct cfg80211_chan_def chandef; 618 struct qtnf_bss_config *bss_cfg; 619 int ret; 620 621 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 622 return -EOPNOTSUPP; 623 624 if (vif->sta_state != QTNF_STA_DISCONNECTED) 625 return -EBUSY; 626 627 bss_cfg = &vif->bss_cfg; 628 memset(bss_cfg, 0, sizeof(*bss_cfg)); 629 630 if (sme->channel) { 631 /* FIXME: need to set proper nl80211_channel_type value */ 632 cfg80211_chandef_create(&chandef, sme->channel, 633 NL80211_CHAN_HT20); 634 /* fall-back to minimal safe chandef description */ 635 if (!cfg80211_chandef_valid(&chandef)) 636 cfg80211_chandef_create(&chandef, sme->channel, 637 NL80211_CHAN_HT20); 638 639 memcpy(&mac->chandef, &chandef, sizeof(mac->chandef)); 640 } 641 642 bss_cfg->ssid_len = sme->ssid_len; 643 memcpy(&bss_cfg->ssid, sme->ssid, bss_cfg->ssid_len); 644 bss_cfg->auth_type = sme->auth_type; 645 bss_cfg->privacy = sme->privacy; 646 bss_cfg->mfp = sme->mfp; 647 648 if ((sme->bg_scan_period > 0) && 649 (sme->bg_scan_period <= QTNF_MAX_BG_SCAN_PERIOD)) 650 bss_cfg->bg_scan_period = sme->bg_scan_period; 651 else if (sme->bg_scan_period == -1) 652 bss_cfg->bg_scan_period = QTNF_DEFAULT_BG_SCAN_PERIOD; 653 else 654 bss_cfg->bg_scan_period = 0; /* disabled */ 655 656 bss_cfg->connect_flags = 0; 657 658 if (sme->flags & ASSOC_REQ_DISABLE_HT) 659 bss_cfg->connect_flags |= QLINK_STA_CONNECT_DISABLE_HT; 660 if (sme->flags & ASSOC_REQ_DISABLE_VHT) 661 bss_cfg->connect_flags |= QLINK_STA_CONNECT_DISABLE_VHT; 662 if (sme->flags & ASSOC_REQ_USE_RRM) 663 bss_cfg->connect_flags |= QLINK_STA_CONNECT_USE_RRM; 664 665 memcpy(&bss_cfg->crypto, &sme->crypto, sizeof(bss_cfg->crypto)); 666 if (sme->bssid) 667 ether_addr_copy(bss_cfg->bssid, sme->bssid); 668 else 669 eth_zero_addr(bss_cfg->bssid); 670 671 ret = qtnf_cmd_send_connect(vif, sme); 672 if (ret) { 673 pr_err("VIF%u.%u: failed to connect\n", vif->mac->macid, 674 vif->vifid); 675 return ret; 676 } 677 678 vif->sta_state = QTNF_STA_CONNECTING; 679 return 0; 680 } 681 682 static int 683 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 684 u16 reason_code) 685 { 686 struct qtnf_wmac *mac = wiphy_priv(wiphy); 687 struct qtnf_vif *vif; 688 int ret; 689 690 vif = qtnf_mac_get_base_vif(mac); 691 if (!vif) { 692 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 693 return -EFAULT; 694 } 695 696 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 697 return -EOPNOTSUPP; 698 699 if (vif->sta_state == QTNF_STA_DISCONNECTED) 700 return 0; 701 702 ret = qtnf_cmd_send_disconnect(vif, reason_code); 703 if (ret) { 704 pr_err("VIF%u.%u: failed to disconnect\n", mac->macid, 705 vif->vifid); 706 return ret; 707 } 708 709 vif->sta_state = QTNF_STA_DISCONNECTED; 710 return 0; 711 } 712 713 static int 714 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 715 int idx, struct survey_info *survey) 716 { 717 struct qtnf_wmac *mac = wiphy_priv(wiphy); 718 struct ieee80211_supported_band *sband; 719 struct cfg80211_chan_def *chandef; 720 struct ieee80211_channel *chan; 721 struct qtnf_chan_stats stats; 722 struct qtnf_vif *vif; 723 int ret; 724 725 vif = qtnf_netdev_get_priv(dev); 726 chandef = &mac->chandef; 727 728 sband = wiphy->bands[NL80211_BAND_2GHZ]; 729 if (sband && idx >= sband->n_channels) { 730 idx -= sband->n_channels; 731 sband = NULL; 732 } 733 734 if (!sband) 735 sband = wiphy->bands[NL80211_BAND_5GHZ]; 736 737 if (!sband || idx >= sband->n_channels) 738 return -ENOENT; 739 740 chan = &sband->channels[idx]; 741 memset(&stats, 0, sizeof(stats)); 742 743 survey->channel = chan; 744 survey->filled = 0x0; 745 746 if (chandef->chan) { 747 if (chan->hw_value == chandef->chan->hw_value) 748 survey->filled = SURVEY_INFO_IN_USE; 749 } 750 751 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 752 switch (ret) { 753 case 0: 754 if (unlikely(stats.chan_num != chan->hw_value)) { 755 pr_err("received stats for channel %d instead of %d\n", 756 stats.chan_num, chan->hw_value); 757 ret = -EINVAL; 758 break; 759 } 760 761 survey->filled |= SURVEY_INFO_TIME | 762 SURVEY_INFO_TIME_SCAN | 763 SURVEY_INFO_TIME_BUSY | 764 SURVEY_INFO_TIME_RX | 765 SURVEY_INFO_TIME_TX | 766 SURVEY_INFO_NOISE_DBM; 767 768 survey->time_scan = stats.cca_try; 769 survey->time = stats.cca_try; 770 survey->time_tx = stats.cca_tx; 771 survey->time_rx = stats.cca_rx; 772 survey->time_busy = stats.cca_busy; 773 survey->noise = stats.chan_noise; 774 break; 775 case -ENOENT: 776 pr_debug("no stats for channel %u\n", chan->hw_value); 777 ret = 0; 778 break; 779 default: 780 pr_debug("failed to get chan(%d) stats from card\n", 781 chan->hw_value); 782 ret = -EINVAL; 783 break; 784 } 785 786 return ret; 787 } 788 789 static int 790 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 791 struct cfg80211_chan_def *chandef) 792 { 793 struct qtnf_wmac *mac = wiphy_priv(wiphy); 794 struct net_device *ndev = wdev->netdev; 795 struct qtnf_vif *vif; 796 797 if (!ndev) 798 return -ENODEV; 799 800 vif = qtnf_netdev_get_priv(wdev->netdev); 801 802 switch (vif->wdev.iftype) { 803 case NL80211_IFTYPE_STATION: 804 if (vif->sta_state == QTNF_STA_DISCONNECTED) { 805 pr_warn("%s: STA disconnected\n", ndev->name); 806 return -ENODATA; 807 } 808 break; 809 case NL80211_IFTYPE_AP: 810 if (!(vif->bss_status & QTNF_STATE_AP_START)) { 811 pr_warn("%s: AP not started\n", ndev->name); 812 return -ENODATA; 813 } 814 break; 815 default: 816 pr_err("unsupported vif type (%d)\n", vif->wdev.iftype); 817 return -ENODATA; 818 } 819 820 if (!cfg80211_chandef_valid(&mac->chandef)) { 821 pr_err("invalid channel settings on %s\n", ndev->name); 822 return -ENODATA; 823 } 824 825 memcpy(chandef, &mac->chandef, sizeof(*chandef)); 826 return 0; 827 } 828 829 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 830 struct cfg80211_csa_settings *params) 831 { 832 struct qtnf_wmac *mac = wiphy_priv(wiphy); 833 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 834 int ret; 835 836 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 837 params->chandef.chan->hw_value, params->count, 838 params->radar_required, params->block_tx); 839 840 switch (vif->wdev.iftype) { 841 case NL80211_IFTYPE_AP: 842 if (!(vif->bss_status & QTNF_STATE_AP_START)) { 843 pr_warn("AP not started on %s\n", dev->name); 844 return -ENOTCONN; 845 } 846 break; 847 default: 848 pr_err("unsupported vif type (%d) on %s\n", 849 vif->wdev.iftype, dev->name); 850 return -EOPNOTSUPP; 851 } 852 853 if (vif->vifid != 0) { 854 if (!(mac->status & QTNF_MAC_CSA_ACTIVE)) 855 return -EOPNOTSUPP; 856 857 if (!cfg80211_chandef_identical(¶ms->chandef, 858 &mac->csa_chandef)) 859 return -EINVAL; 860 861 return 0; 862 } 863 864 if (!cfg80211_chandef_valid(¶ms->chandef)) { 865 pr_err("%s: invalid channel\n", dev->name); 866 return -EINVAL; 867 } 868 869 if (cfg80211_chandef_identical(¶ms->chandef, &mac->chandef)) { 870 pr_err("%s: switch request to the same channel\n", dev->name); 871 return -EALREADY; 872 } 873 874 ret = qtnf_cmd_send_chan_switch(mac, params); 875 if (ret) 876 pr_warn("%s: failed to switch to channel (%u)\n", 877 dev->name, params->chandef.chan->hw_value); 878 879 return ret; 880 } 881 882 static struct cfg80211_ops qtn_cfg80211_ops = { 883 .add_virtual_intf = qtnf_add_virtual_intf, 884 .change_virtual_intf = qtnf_change_virtual_intf, 885 .del_virtual_intf = qtnf_del_virtual_intf, 886 .start_ap = qtnf_start_ap, 887 .change_beacon = qtnf_change_beacon, 888 .stop_ap = qtnf_stop_ap, 889 .set_wiphy_params = qtnf_set_wiphy_params, 890 .mgmt_frame_register = qtnf_mgmt_frame_register, 891 .mgmt_tx = qtnf_mgmt_tx, 892 .change_station = qtnf_change_station, 893 .del_station = qtnf_del_station, 894 .get_station = qtnf_get_station, 895 .dump_station = qtnf_dump_station, 896 .add_key = qtnf_add_key, 897 .del_key = qtnf_del_key, 898 .set_default_key = qtnf_set_default_key, 899 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 900 .scan = qtnf_scan, 901 .connect = qtnf_connect, 902 .disconnect = qtnf_disconnect, 903 .dump_survey = qtnf_dump_survey, 904 .get_channel = qtnf_get_channel, 905 .channel_switch = qtnf_channel_switch 906 }; 907 908 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 909 struct regulatory_request *req) 910 { 911 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 912 struct qtnf_bus *bus = mac->bus; 913 struct wiphy *wiphy; 914 unsigned int mac_idx; 915 enum nl80211_band band; 916 int ret; 917 918 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 919 req->alpha2[0], req->alpha2[1]); 920 921 ret = qtnf_cmd_reg_notify(bus, req); 922 if (ret) { 923 if (ret != -EOPNOTSUPP && ret != -EALREADY) 924 pr_err("failed to update reg domain to %c%c\n", 925 req->alpha2[0], req->alpha2[1]); 926 return; 927 } 928 929 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 930 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 931 continue; 932 933 mac = bus->mac[mac_idx]; 934 wiphy = priv_to_wiphy(mac); 935 936 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 937 if (!wiphy->bands[band]) 938 continue; 939 940 ret = qtnf_cmd_get_mac_chan_info(mac, 941 wiphy->bands[band]); 942 if (ret) 943 pr_err("failed to get chan info for mac %u band %u\n", 944 mac_idx, band); 945 } 946 } 947 } 948 949 void qtnf_band_setup_htvht_caps(struct qtnf_mac_info *macinfo, 950 struct ieee80211_supported_band *band) 951 { 952 struct ieee80211_sta_ht_cap *ht_cap; 953 struct ieee80211_sta_vht_cap *vht_cap; 954 955 ht_cap = &band->ht_cap; 956 ht_cap->ht_supported = true; 957 memcpy(&ht_cap->cap, &macinfo->ht_cap.cap_info, 958 sizeof(u16)); 959 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 960 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 961 memcpy(&ht_cap->mcs, &macinfo->ht_cap.mcs, 962 sizeof(ht_cap->mcs)); 963 964 if (macinfo->phymode_cap & QLINK_PHYMODE_AC) { 965 vht_cap = &band->vht_cap; 966 vht_cap->vht_supported = true; 967 memcpy(&vht_cap->cap, 968 &macinfo->vht_cap.vht_cap_info, sizeof(u32)); 969 /* Update MCS support for VHT */ 970 memcpy(&vht_cap->vht_mcs, 971 &macinfo->vht_cap.supp_mcs, 972 sizeof(struct ieee80211_vht_mcs_info)); 973 } 974 } 975 976 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 977 { 978 struct wiphy *wiphy; 979 980 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 981 if (!wiphy) 982 return NULL; 983 984 set_wiphy_dev(wiphy, bus->dev); 985 986 return wiphy; 987 } 988 989 static int qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, 990 struct ieee80211_iface_combination *if_comb, 991 const struct qtnf_mac_info *mac_info) 992 { 993 size_t max_interfaces = 0; 994 u16 interface_modes = 0; 995 size_t i; 996 997 if (unlikely(!mac_info->limits || !mac_info->n_limits)) 998 return -ENOENT; 999 1000 if_comb->limits = mac_info->limits; 1001 if_comb->n_limits = mac_info->n_limits; 1002 1003 for (i = 0; i < mac_info->n_limits; i++) { 1004 max_interfaces += mac_info->limits[i].max; 1005 interface_modes |= mac_info->limits[i].types; 1006 } 1007 1008 if_comb->num_different_channels = 1; 1009 if_comb->beacon_int_infra_match = true; 1010 if_comb->max_interfaces = max_interfaces; 1011 if_comb->radar_detect_widths = mac_info->radar_detect_widths; 1012 wiphy->interface_modes = interface_modes; 1013 1014 return 0; 1015 } 1016 1017 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 1018 { 1019 struct wiphy *wiphy = priv_to_wiphy(mac); 1020 struct ieee80211_iface_combination *iface_comb = NULL; 1021 int ret; 1022 1023 if (!wiphy) { 1024 pr_err("invalid wiphy pointer\n"); 1025 return -EFAULT; 1026 } 1027 1028 iface_comb = kzalloc(sizeof(*iface_comb), GFP_KERNEL); 1029 if (!iface_comb) 1030 return -ENOMEM; 1031 1032 ret = qtnf_wiphy_setup_if_comb(wiphy, iface_comb, &mac->macinfo); 1033 if (ret) 1034 goto out; 1035 1036 pr_info("MAC%u: phymode=%#x radar=%#x\n", mac->macid, 1037 mac->macinfo.phymode_cap, mac->macinfo.radar_detect_widths); 1038 1039 wiphy->frag_threshold = mac->macinfo.frag_thr; 1040 wiphy->rts_threshold = mac->macinfo.rts_thr; 1041 wiphy->retry_short = mac->macinfo.sretry_limit; 1042 wiphy->retry_long = mac->macinfo.lretry_limit; 1043 wiphy->coverage_class = mac->macinfo.coverage_class; 1044 1045 wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH; 1046 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 1047 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 1048 wiphy->max_remain_on_channel_duration = 5000; 1049 1050 wiphy->iface_combinations = iface_comb; 1051 wiphy->n_iface_combinations = 1; 1052 wiphy->max_num_csa_counters = 2; 1053 1054 /* Initialize cipher suits */ 1055 wiphy->cipher_suites = qtnf_cipher_suites; 1056 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 1057 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1058 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1059 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 1060 WIPHY_FLAG_AP_UAPSD | 1061 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 1062 1063 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1064 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 1065 1066 wiphy->available_antennas_tx = mac->macinfo.num_tx_chain; 1067 wiphy->available_antennas_rx = mac->macinfo.num_rx_chain; 1068 1069 wiphy->max_ap_assoc_sta = mac->macinfo.max_ap_assoc_sta; 1070 1071 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 1072 1073 if (hw_info->hw_capab & QLINK_HW_SUPPORTS_REG_UPDATE) { 1074 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 1075 REGULATORY_CUSTOM_REG; 1076 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 1077 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 1078 } else { 1079 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 1080 } 1081 1082 ret = wiphy_register(wiphy); 1083 if (ret < 0) 1084 goto out; 1085 1086 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 1087 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 1088 else if (isalpha(hw_info->rd->alpha2[0]) && 1089 isalpha(hw_info->rd->alpha2[1])) 1090 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 1091 1092 out: 1093 if (ret) { 1094 kfree(iface_comb); 1095 return ret; 1096 } 1097 1098 return 0; 1099 } 1100 1101 void qtnf_netdev_updown(struct net_device *ndev, bool up) 1102 { 1103 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1104 1105 if (qtnf_cmd_send_updown_intf(vif, up)) 1106 pr_err("failed to send up/down command to FW\n"); 1107 } 1108 1109 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 1110 { 1111 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1112 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1113 1114 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1115 switch (vif->sta_state) { 1116 case QTNF_STA_DISCONNECTED: 1117 break; 1118 case QTNF_STA_CONNECTING: 1119 cfg80211_connect_result(vif->netdev, 1120 vif->bss_cfg.bssid, NULL, 0, 1121 NULL, 0, 1122 WLAN_STATUS_UNSPECIFIED_FAILURE, 1123 GFP_KERNEL); 1124 qtnf_disconnect(vif->wdev.wiphy, ndev, 1125 WLAN_REASON_DEAUTH_LEAVING); 1126 break; 1127 case QTNF_STA_CONNECTED: 1128 cfg80211_disconnected(vif->netdev, 1129 WLAN_REASON_DEAUTH_LEAVING, 1130 NULL, 0, 1, GFP_KERNEL); 1131 qtnf_disconnect(vif->wdev.wiphy, ndev, 1132 WLAN_REASON_DEAUTH_LEAVING); 1133 break; 1134 } 1135 1136 vif->sta_state = QTNF_STA_DISCONNECTED; 1137 qtnf_scan_done(mac, true); 1138 } 1139 } 1140 1141 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1142 { 1143 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1144 switch (vif->sta_state) { 1145 case QTNF_STA_CONNECTING: 1146 cfg80211_connect_result(vif->netdev, 1147 vif->bss_cfg.bssid, NULL, 0, 1148 NULL, 0, 1149 WLAN_STATUS_UNSPECIFIED_FAILURE, 1150 GFP_KERNEL); 1151 break; 1152 case QTNF_STA_CONNECTED: 1153 cfg80211_disconnected(vif->netdev, 1154 WLAN_REASON_DEAUTH_LEAVING, 1155 NULL, 0, 1, GFP_KERNEL); 1156 break; 1157 case QTNF_STA_DISCONNECTED: 1158 break; 1159 } 1160 } 1161 1162 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1163 vif->sta_state = QTNF_STA_DISCONNECTED; 1164 } 1165 1166 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1167 { 1168 switch (band->band) { 1169 case NL80211_BAND_2GHZ: 1170 band->bitrates = qtnf_rates_2g; 1171 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1172 break; 1173 case NL80211_BAND_5GHZ: 1174 band->bitrates = qtnf_rates_5g; 1175 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1176 break; 1177 default: 1178 band->bitrates = NULL; 1179 band->n_bitrates = 0; 1180 break; 1181 } 1182 } 1183