1 /* 2 * Copyright (c) 2012-2015 Qualcomm Atheros, Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/etherdevice.h> 18 #include "wil6210.h" 19 #include "wmi.h" 20 21 #define CHAN60G(_channel, _flags) { \ 22 .band = IEEE80211_BAND_60GHZ, \ 23 .center_freq = 56160 + (2160 * (_channel)), \ 24 .hw_value = (_channel), \ 25 .flags = (_flags), \ 26 .max_antenna_gain = 0, \ 27 .max_power = 40, \ 28 } 29 30 static struct ieee80211_channel wil_60ghz_channels[] = { 31 CHAN60G(1, 0), 32 CHAN60G(2, 0), 33 CHAN60G(3, 0), 34 /* channel 4 not supported yet */ 35 }; 36 37 static struct ieee80211_supported_band wil_band_60ghz = { 38 .channels = wil_60ghz_channels, 39 .n_channels = ARRAY_SIZE(wil_60ghz_channels), 40 .ht_cap = { 41 .ht_supported = true, 42 .cap = 0, /* TODO */ 43 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */ 44 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */ 45 .mcs = { 46 /* MCS 1..12 - SC PHY */ 47 .rx_mask = {0xfe, 0x1f}, /* 1..12 */ 48 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */ 49 }, 50 }, 51 }; 52 53 static const struct ieee80211_txrx_stypes 54 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = { 55 [NL80211_IFTYPE_STATION] = { 56 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 57 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 58 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 59 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 60 }, 61 [NL80211_IFTYPE_AP] = { 62 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 63 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 64 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 65 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 66 }, 67 [NL80211_IFTYPE_P2P_CLIENT] = { 68 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 69 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 70 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 71 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 72 }, 73 [NL80211_IFTYPE_P2P_GO] = { 74 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 75 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 76 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 77 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 78 }, 79 }; 80 81 static const u32 wil_cipher_suites[] = { 82 WLAN_CIPHER_SUITE_GCMP, 83 }; 84 85 int wil_iftype_nl2wmi(enum nl80211_iftype type) 86 { 87 static const struct { 88 enum nl80211_iftype nl; 89 enum wmi_network_type wmi; 90 } __nl2wmi[] = { 91 {NL80211_IFTYPE_ADHOC, WMI_NETTYPE_ADHOC}, 92 {NL80211_IFTYPE_STATION, WMI_NETTYPE_INFRA}, 93 {NL80211_IFTYPE_AP, WMI_NETTYPE_AP}, 94 {NL80211_IFTYPE_P2P_CLIENT, WMI_NETTYPE_P2P}, 95 {NL80211_IFTYPE_P2P_GO, WMI_NETTYPE_P2P}, 96 {NL80211_IFTYPE_MONITOR, WMI_NETTYPE_ADHOC}, /* FIXME */ 97 }; 98 uint i; 99 100 for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) { 101 if (__nl2wmi[i].nl == type) 102 return __nl2wmi[i].wmi; 103 } 104 105 return -EOPNOTSUPP; 106 } 107 108 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid, 109 struct station_info *sinfo) 110 { 111 struct wmi_notify_req_cmd cmd = { 112 .cid = cid, 113 .interval_usec = 0, 114 }; 115 struct { 116 struct wil6210_mbox_hdr_wmi wmi; 117 struct wmi_notify_req_done_event evt; 118 } __packed reply; 119 struct wil_net_stats *stats = &wil->sta[cid].stats; 120 int rc; 121 122 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 123 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20); 124 if (rc) 125 return rc; 126 127 wil_dbg_wmi(wil, "Link status for CID %d: {\n" 128 " MCS %d TSF 0x%016llx\n" 129 " BF status 0x%08x SNR 0x%08x SQI %d%%\n" 130 " Tx Tpt %d goodput %d Rx goodput %d\n" 131 " Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n", 132 cid, le16_to_cpu(reply.evt.bf_mcs), 133 le64_to_cpu(reply.evt.tsf), reply.evt.status, 134 le32_to_cpu(reply.evt.snr_val), 135 reply.evt.sqi, 136 le32_to_cpu(reply.evt.tx_tpt), 137 le32_to_cpu(reply.evt.tx_goodput), 138 le32_to_cpu(reply.evt.rx_goodput), 139 le16_to_cpu(reply.evt.my_rx_sector), 140 le16_to_cpu(reply.evt.my_tx_sector), 141 le16_to_cpu(reply.evt.other_rx_sector), 142 le16_to_cpu(reply.evt.other_tx_sector)); 143 144 sinfo->generation = wil->sinfo_gen; 145 146 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | 147 BIT(NL80211_STA_INFO_TX_BYTES) | 148 BIT(NL80211_STA_INFO_RX_PACKETS) | 149 BIT(NL80211_STA_INFO_TX_PACKETS) | 150 BIT(NL80211_STA_INFO_RX_BITRATE) | 151 BIT(NL80211_STA_INFO_TX_BITRATE) | 152 BIT(NL80211_STA_INFO_RX_DROP_MISC) | 153 BIT(NL80211_STA_INFO_TX_FAILED); 154 155 sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G; 156 sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs); 157 sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G; 158 sinfo->rxrate.mcs = stats->last_mcs_rx; 159 sinfo->rx_bytes = stats->rx_bytes; 160 sinfo->rx_packets = stats->rx_packets; 161 sinfo->rx_dropped_misc = stats->rx_dropped; 162 sinfo->tx_bytes = stats->tx_bytes; 163 sinfo->tx_packets = stats->tx_packets; 164 sinfo->tx_failed = stats->tx_errors; 165 166 if (test_bit(wil_status_fwconnected, wil->status)) { 167 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 168 sinfo->signal = reply.evt.sqi; 169 } 170 171 return rc; 172 } 173 174 static int wil_cfg80211_get_station(struct wiphy *wiphy, 175 struct net_device *ndev, 176 const u8 *mac, struct station_info *sinfo) 177 { 178 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 179 int rc; 180 181 int cid = wil_find_cid(wil, mac); 182 183 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid); 184 if (cid < 0) 185 return cid; 186 187 rc = wil_cid_fill_sinfo(wil, cid, sinfo); 188 189 return rc; 190 } 191 192 /* 193 * Find @idx-th active STA for station dump. 194 */ 195 static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx) 196 { 197 int i; 198 199 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 200 if (wil->sta[i].status == wil_sta_unused) 201 continue; 202 if (idx == 0) 203 return i; 204 idx--; 205 } 206 207 return -ENOENT; 208 } 209 210 static int wil_cfg80211_dump_station(struct wiphy *wiphy, 211 struct net_device *dev, int idx, 212 u8 *mac, struct station_info *sinfo) 213 { 214 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 215 int rc; 216 int cid = wil_find_cid_by_idx(wil, idx); 217 218 if (cid < 0) 219 return -ENOENT; 220 221 ether_addr_copy(mac, wil->sta[cid].addr); 222 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid); 223 224 rc = wil_cid_fill_sinfo(wil, cid, sinfo); 225 226 return rc; 227 } 228 229 static int wil_cfg80211_change_iface(struct wiphy *wiphy, 230 struct net_device *ndev, 231 enum nl80211_iftype type, u32 *flags, 232 struct vif_params *params) 233 { 234 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 235 struct wireless_dev *wdev = wil->wdev; 236 237 switch (type) { 238 case NL80211_IFTYPE_STATION: 239 case NL80211_IFTYPE_AP: 240 case NL80211_IFTYPE_P2P_CLIENT: 241 case NL80211_IFTYPE_P2P_GO: 242 break; 243 case NL80211_IFTYPE_MONITOR: 244 if (flags) 245 wil->monitor_flags = *flags; 246 else 247 wil->monitor_flags = 0; 248 249 break; 250 default: 251 return -EOPNOTSUPP; 252 } 253 254 wdev->iftype = type; 255 256 return 0; 257 } 258 259 static int wil_cfg80211_scan(struct wiphy *wiphy, 260 struct cfg80211_scan_request *request) 261 { 262 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 263 struct wireless_dev *wdev = wil->wdev; 264 struct { 265 struct wmi_start_scan_cmd cmd; 266 u16 chnl[4]; 267 } __packed cmd; 268 uint i, n; 269 int rc; 270 271 if (wil->scan_request) { 272 wil_err(wil, "Already scanning\n"); 273 return -EAGAIN; 274 } 275 276 /* check we are client side */ 277 switch (wdev->iftype) { 278 case NL80211_IFTYPE_STATION: 279 case NL80211_IFTYPE_P2P_CLIENT: 280 break; 281 default: 282 return -EOPNOTSUPP; 283 } 284 285 /* FW don't support scan after connection attempt */ 286 if (test_bit(wil_status_dontscan, wil->status)) { 287 wil_err(wil, "Can't scan now\n"); 288 return -EBUSY; 289 } 290 291 wil_dbg_misc(wil, "Start scan_request 0x%p\n", request); 292 wil_dbg_misc(wil, "SSID count: %d", request->n_ssids); 293 294 for (i = 0; i < request->n_ssids; i++) { 295 wil_dbg_misc(wil, "SSID[%d]", i); 296 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET, 297 request->ssids[i].ssid, 298 request->ssids[i].ssid_len); 299 } 300 301 if (request->n_ssids) 302 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len, 303 request->ssids[0].ssid); 304 else 305 rc = wmi_set_ssid(wil, 0, NULL); 306 307 if (rc) { 308 wil_err(wil, "set SSID for scan request failed: %d\n", rc); 309 return rc; 310 } 311 312 wil->scan_request = request; 313 mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO); 314 315 memset(&cmd, 0, sizeof(cmd)); 316 cmd.cmd.num_channels = 0; 317 n = min(request->n_channels, 4U); 318 for (i = 0; i < n; i++) { 319 int ch = request->channels[i]->hw_value; 320 321 if (ch == 0) { 322 wil_err(wil, 323 "Scan requested for unknown frequency %dMhz\n", 324 request->channels[i]->center_freq); 325 continue; 326 } 327 /* 0-based channel indexes */ 328 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1; 329 wil_dbg_misc(wil, "Scan for ch %d : %d MHz\n", ch, 330 request->channels[i]->center_freq); 331 } 332 333 if (request->ie_len) 334 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET, 335 request->ie, request->ie_len); 336 else 337 wil_dbg_misc(wil, "Scan has no IE's\n"); 338 339 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie); 340 if (rc) 341 goto out; 342 343 rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) + 344 cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0])); 345 346 out: 347 if (rc) { 348 del_timer_sync(&wil->scan_timer); 349 wil->scan_request = NULL; 350 } 351 352 return rc; 353 } 354 355 static void wil_print_crypto(struct wil6210_priv *wil, 356 struct cfg80211_crypto_settings *c) 357 { 358 int i, n; 359 360 wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n", 361 c->wpa_versions, c->cipher_group); 362 wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise); 363 n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise)); 364 for (i = 0; i < n; i++) 365 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i, 366 c->ciphers_pairwise[i]); 367 wil_dbg_misc(wil, "}\n"); 368 wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites); 369 n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites)); 370 for (i = 0; i < n; i++) 371 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i, 372 c->akm_suites[i]); 373 wil_dbg_misc(wil, "}\n"); 374 wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n", 375 c->control_port, be16_to_cpu(c->control_port_ethertype), 376 c->control_port_no_encrypt); 377 } 378 379 static void wil_print_connect_params(struct wil6210_priv *wil, 380 struct cfg80211_connect_params *sme) 381 { 382 wil_info(wil, "Connecting to:\n"); 383 if (sme->channel) { 384 wil_info(wil, " Channel: %d freq %d\n", 385 sme->channel->hw_value, sme->channel->center_freq); 386 } 387 if (sme->bssid) 388 wil_info(wil, " BSSID: %pM\n", sme->bssid); 389 if (sme->ssid) 390 print_hex_dump(KERN_INFO, " SSID: ", DUMP_PREFIX_OFFSET, 391 16, 1, sme->ssid, sme->ssid_len, true); 392 wil_info(wil, " Privacy: %s\n", sme->privacy ? "secure" : "open"); 393 wil_print_crypto(wil, &sme->crypto); 394 } 395 396 static int wil_cfg80211_connect(struct wiphy *wiphy, 397 struct net_device *ndev, 398 struct cfg80211_connect_params *sme) 399 { 400 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 401 struct cfg80211_bss *bss; 402 struct wmi_connect_cmd conn; 403 const u8 *ssid_eid; 404 const u8 *rsn_eid; 405 int ch; 406 int rc = 0; 407 408 wil_print_connect_params(wil, sme); 409 410 if (test_bit(wil_status_fwconnecting, wil->status) || 411 test_bit(wil_status_fwconnected, wil->status)) 412 return -EALREADY; 413 414 if (sme->ie_len > WMI_MAX_IE_LEN) { 415 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len); 416 return -ERANGE; 417 } 418 419 rsn_eid = sme->ie ? 420 cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) : 421 NULL; 422 if (sme->privacy && !rsn_eid) 423 wil_info(wil, "WSC connection\n"); 424 425 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, 426 sme->ssid, sme->ssid_len, 427 IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY); 428 if (!bss) { 429 wil_err(wil, "Unable to find BSS\n"); 430 return -ENOENT; 431 } 432 433 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); 434 if (!ssid_eid) { 435 wil_err(wil, "No SSID\n"); 436 rc = -ENOENT; 437 goto out; 438 } 439 wil->privacy = sme->privacy; 440 441 if (wil->privacy) { 442 /* For secure assoc, remove old keys */ 443 rc = wmi_del_cipher_key(wil, 0, bss->bssid, 444 WMI_KEY_USE_PAIRWISE); 445 if (rc) { 446 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n"); 447 goto out; 448 } 449 rc = wmi_del_cipher_key(wil, 0, bss->bssid, 450 WMI_KEY_USE_RX_GROUP); 451 if (rc) { 452 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n"); 453 goto out; 454 } 455 } 456 457 /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info 458 * elements. Send it also in case it's empty, to erase previously set 459 * ies in FW. 460 */ 461 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie); 462 if (rc) 463 goto out; 464 465 /* WMI_CONNECT_CMD */ 466 memset(&conn, 0, sizeof(conn)); 467 switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) { 468 case WLAN_CAPABILITY_DMG_TYPE_AP: 469 conn.network_type = WMI_NETTYPE_INFRA; 470 break; 471 case WLAN_CAPABILITY_DMG_TYPE_PBSS: 472 conn.network_type = WMI_NETTYPE_P2P; 473 break; 474 default: 475 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n", 476 bss->capability); 477 goto out; 478 } 479 if (wil->privacy) { 480 if (rsn_eid) { /* regular secure connection */ 481 conn.dot11_auth_mode = WMI_AUTH11_SHARED; 482 conn.auth_mode = WMI_AUTH_WPA2_PSK; 483 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP; 484 conn.pairwise_crypto_len = 16; 485 conn.group_crypto_type = WMI_CRYPT_AES_GCMP; 486 conn.group_crypto_len = 16; 487 } else { /* WSC */ 488 conn.dot11_auth_mode = WMI_AUTH11_WSC; 489 conn.auth_mode = WMI_AUTH_NONE; 490 } 491 } else { /* insecure connection */ 492 conn.dot11_auth_mode = WMI_AUTH11_OPEN; 493 conn.auth_mode = WMI_AUTH_NONE; 494 } 495 496 conn.ssid_len = min_t(u8, ssid_eid[1], 32); 497 memcpy(conn.ssid, ssid_eid+2, conn.ssid_len); 498 499 ch = bss->channel->hw_value; 500 if (ch == 0) { 501 wil_err(wil, "BSS at unknown frequency %dMhz\n", 502 bss->channel->center_freq); 503 rc = -EOPNOTSUPP; 504 goto out; 505 } 506 conn.channel = ch - 1; 507 508 ether_addr_copy(conn.bssid, bss->bssid); 509 ether_addr_copy(conn.dst_mac, bss->bssid); 510 511 set_bit(wil_status_fwconnecting, wil->status); 512 513 rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn)); 514 if (rc == 0) { 515 netif_carrier_on(ndev); 516 /* Connect can take lots of time */ 517 mod_timer(&wil->connect_timer, 518 jiffies + msecs_to_jiffies(2000)); 519 } else { 520 clear_bit(wil_status_fwconnecting, wil->status); 521 } 522 523 out: 524 cfg80211_put_bss(wiphy, bss); 525 526 return rc; 527 } 528 529 static int wil_cfg80211_disconnect(struct wiphy *wiphy, 530 struct net_device *ndev, 531 u16 reason_code) 532 { 533 int rc; 534 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 535 536 wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code); 537 538 rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); 539 540 return rc; 541 } 542 543 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 544 struct cfg80211_mgmt_tx_params *params, 545 u64 *cookie) 546 { 547 const u8 *buf = params->buf; 548 size_t len = params->len; 549 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 550 int rc; 551 bool tx_status = false; 552 struct ieee80211_mgmt *mgmt_frame = (void *)buf; 553 struct wmi_sw_tx_req_cmd *cmd; 554 struct { 555 struct wil6210_mbox_hdr_wmi wmi; 556 struct wmi_sw_tx_complete_event evt; 557 } __packed evt; 558 559 cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL); 560 if (!cmd) { 561 rc = -ENOMEM; 562 goto out; 563 } 564 565 memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN); 566 cmd->len = cpu_to_le16(len); 567 memcpy(cmd->payload, buf, len); 568 569 rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len, 570 WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000); 571 if (rc == 0) 572 tx_status = !evt.evt.status; 573 574 kfree(cmd); 575 out: 576 cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len, 577 tx_status, GFP_KERNEL); 578 return rc; 579 } 580 581 static int wil_cfg80211_set_channel(struct wiphy *wiphy, 582 struct cfg80211_chan_def *chandef) 583 { 584 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 585 struct wireless_dev *wdev = wil->wdev; 586 587 wdev->preset_chandef = *chandef; 588 589 return 0; 590 } 591 592 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil, 593 bool pairwise) 594 { 595 struct wireless_dev *wdev = wil->wdev; 596 enum wmi_key_usage rc; 597 static const char * const key_usage_str[] = { 598 [WMI_KEY_USE_PAIRWISE] = "WMI_KEY_USE_PAIRWISE", 599 [WMI_KEY_USE_RX_GROUP] = "WMI_KEY_USE_RX_GROUP", 600 [WMI_KEY_USE_TX_GROUP] = "WMI_KEY_USE_TX_GROUP", 601 }; 602 603 if (pairwise) { 604 rc = WMI_KEY_USE_PAIRWISE; 605 } else { 606 switch (wdev->iftype) { 607 case NL80211_IFTYPE_STATION: 608 rc = WMI_KEY_USE_RX_GROUP; 609 break; 610 case NL80211_IFTYPE_AP: 611 rc = WMI_KEY_USE_TX_GROUP; 612 break; 613 default: 614 /* TODO: Rx GTK or Tx GTK? */ 615 wil_err(wil, "Can't determine GTK type\n"); 616 rc = WMI_KEY_USE_RX_GROUP; 617 break; 618 } 619 } 620 wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]); 621 622 return rc; 623 } 624 625 static int wil_cfg80211_add_key(struct wiphy *wiphy, 626 struct net_device *ndev, 627 u8 key_index, bool pairwise, 628 const u8 *mac_addr, 629 struct key_params *params) 630 { 631 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 632 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise); 633 634 wil_dbg_misc(wil, "%s(%pM[%d] %s)\n", __func__, mac_addr, key_index, 635 pairwise ? "PTK" : "GTK"); 636 637 return wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len, 638 params->key, key_usage); 639 } 640 641 static int wil_cfg80211_del_key(struct wiphy *wiphy, 642 struct net_device *ndev, 643 u8 key_index, bool pairwise, 644 const u8 *mac_addr) 645 { 646 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 647 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise); 648 649 wil_dbg_misc(wil, "%s(%pM[%d] %s)\n", __func__, mac_addr, key_index, 650 pairwise ? "PTK" : "GTK"); 651 652 return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage); 653 } 654 655 /* Need to be present or wiphy_new() will WARN */ 656 static int wil_cfg80211_set_default_key(struct wiphy *wiphy, 657 struct net_device *ndev, 658 u8 key_index, bool unicast, 659 bool multicast) 660 { 661 return 0; 662 } 663 664 static int wil_remain_on_channel(struct wiphy *wiphy, 665 struct wireless_dev *wdev, 666 struct ieee80211_channel *chan, 667 unsigned int duration, 668 u64 *cookie) 669 { 670 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 671 int rc; 672 673 /* TODO: handle duration */ 674 wil_info(wil, "%s(%d, %d ms)\n", __func__, chan->center_freq, duration); 675 676 rc = wmi_set_channel(wil, chan->hw_value); 677 if (rc) 678 return rc; 679 680 rc = wmi_rxon(wil, true); 681 682 return rc; 683 } 684 685 static int wil_cancel_remain_on_channel(struct wiphy *wiphy, 686 struct wireless_dev *wdev, 687 u64 cookie) 688 { 689 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 690 int rc; 691 692 wil_info(wil, "%s()\n", __func__); 693 694 rc = wmi_rxon(wil, false); 695 696 return rc; 697 } 698 699 static void wil_print_bcon_data(struct cfg80211_beacon_data *b) 700 { 701 print_hex_dump_bytes("head ", DUMP_PREFIX_OFFSET, 702 b->head, b->head_len); 703 print_hex_dump_bytes("tail ", DUMP_PREFIX_OFFSET, 704 b->tail, b->tail_len); 705 print_hex_dump_bytes("BCON IE ", DUMP_PREFIX_OFFSET, 706 b->beacon_ies, b->beacon_ies_len); 707 print_hex_dump_bytes("PROBE ", DUMP_PREFIX_OFFSET, 708 b->probe_resp, b->probe_resp_len); 709 print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET, 710 b->proberesp_ies, b->proberesp_ies_len); 711 print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET, 712 b->assocresp_ies, b->assocresp_ies_len); 713 } 714 715 static int wil_fix_bcon(struct wil6210_priv *wil, 716 struct cfg80211_beacon_data *bcon) 717 { 718 struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp; 719 size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); 720 721 if (bcon->probe_resp_len <= hlen) 722 return 0; 723 724 /* always use IE's from full probe frame, they has more info 725 * notable RSN 726 */ 727 bcon->proberesp_ies = f->u.probe_resp.variable; 728 bcon->proberesp_ies_len = bcon->probe_resp_len - hlen; 729 if (!bcon->assocresp_ies) { 730 bcon->assocresp_ies = bcon->proberesp_ies; 731 bcon->assocresp_ies_len = bcon->proberesp_ies_len; 732 } 733 734 return 1; 735 } 736 737 /* internal functions for device reset and starting AP */ 738 static int _wil_cfg80211_set_ies(struct wiphy *wiphy, 739 struct cfg80211_beacon_data *bcon) 740 { 741 int rc; 742 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 743 744 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, bcon->proberesp_ies_len, 745 bcon->proberesp_ies); 746 if (rc) 747 return rc; 748 749 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len, 750 bcon->assocresp_ies); 751 #if 0 /* to use beacon IE's, remove this #if 0 */ 752 if (rc) 753 return rc; 754 755 rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail); 756 #endif 757 758 return rc; 759 } 760 761 static int _wil_cfg80211_start_ap(struct wiphy *wiphy, 762 struct net_device *ndev, 763 const u8 *ssid, size_t ssid_len, u32 privacy, 764 int bi, u8 chan, 765 struct cfg80211_beacon_data *bcon, 766 u8 hidden_ssid) 767 { 768 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 769 int rc; 770 struct wireless_dev *wdev = ndev->ieee80211_ptr; 771 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype); 772 773 wil_set_recovery_state(wil, fw_recovery_idle); 774 775 mutex_lock(&wil->mutex); 776 777 __wil_down(wil); 778 rc = __wil_up(wil); 779 if (rc) 780 goto out; 781 782 rc = wmi_set_ssid(wil, ssid_len, ssid); 783 if (rc) 784 goto out; 785 786 rc = _wil_cfg80211_set_ies(wiphy, bcon); 787 if (rc) 788 goto out; 789 790 wil->privacy = privacy; 791 wil->channel = chan; 792 wil->hidden_ssid = hidden_ssid; 793 794 netif_carrier_on(ndev); 795 796 rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid); 797 if (rc) 798 goto err_pcp_start; 799 800 rc = wil_bcast_init(wil); 801 if (rc) 802 goto err_bcast; 803 804 goto out; /* success */ 805 806 err_bcast: 807 wmi_pcp_stop(wil); 808 err_pcp_start: 809 netif_carrier_off(ndev); 810 out: 811 mutex_unlock(&wil->mutex); 812 return rc; 813 } 814 815 static int wil_cfg80211_change_beacon(struct wiphy *wiphy, 816 struct net_device *ndev, 817 struct cfg80211_beacon_data *bcon) 818 { 819 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 820 int rc; 821 u32 privacy = 0; 822 823 wil_dbg_misc(wil, "%s()\n", __func__); 824 wil_print_bcon_data(bcon); 825 826 if (wil_fix_bcon(wil, bcon)) { 827 wil_dbg_misc(wil, "Fixed bcon\n"); 828 wil_print_bcon_data(bcon); 829 } 830 831 if (bcon->proberesp_ies && 832 cfg80211_find_ie(WLAN_EID_RSN, bcon->proberesp_ies, 833 bcon->proberesp_ies_len)) 834 privacy = 1; 835 836 /* in case privacy has changed, need to restart the AP */ 837 if (wil->privacy != privacy) { 838 struct wireless_dev *wdev = ndev->ieee80211_ptr; 839 840 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n", 841 wil->privacy, privacy); 842 843 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid, 844 wdev->ssid_len, privacy, 845 wdev->beacon_interval, 846 wil->channel, bcon, 847 wil->hidden_ssid); 848 } else { 849 rc = _wil_cfg80211_set_ies(wiphy, bcon); 850 } 851 852 return rc; 853 } 854 855 static int wil_cfg80211_start_ap(struct wiphy *wiphy, 856 struct net_device *ndev, 857 struct cfg80211_ap_settings *info) 858 { 859 int rc; 860 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 861 struct ieee80211_channel *channel = info->chandef.chan; 862 struct cfg80211_beacon_data *bcon = &info->beacon; 863 struct cfg80211_crypto_settings *crypto = &info->crypto; 864 u8 hidden_ssid; 865 866 wil_dbg_misc(wil, "%s()\n", __func__); 867 868 if (!channel) { 869 wil_err(wil, "AP: No channel???\n"); 870 return -EINVAL; 871 } 872 873 switch (info->hidden_ssid) { 874 case NL80211_HIDDEN_SSID_NOT_IN_USE: 875 hidden_ssid = WMI_HIDDEN_SSID_DISABLED; 876 break; 877 878 case NL80211_HIDDEN_SSID_ZERO_LEN: 879 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY; 880 break; 881 882 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 883 hidden_ssid = WMI_HIDDEN_SSID_CLEAR; 884 break; 885 886 default: 887 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid); 888 return -EOPNOTSUPP; 889 } 890 wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value, 891 channel->center_freq, info->privacy ? "secure" : "open"); 892 wil_dbg_misc(wil, "Privacy: %d auth_type %d\n", 893 info->privacy, info->auth_type); 894 wil_dbg_misc(wil, "Hidden SSID mode: %d\n", 895 info->hidden_ssid); 896 wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval, 897 info->dtim_period); 898 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET, 899 info->ssid, info->ssid_len); 900 wil_print_bcon_data(bcon); 901 wil_print_crypto(wil, crypto); 902 903 if (wil_fix_bcon(wil, bcon)) { 904 wil_dbg_misc(wil, "Fixed bcon\n"); 905 wil_print_bcon_data(bcon); 906 } 907 908 rc = _wil_cfg80211_start_ap(wiphy, ndev, 909 info->ssid, info->ssid_len, info->privacy, 910 info->beacon_interval, channel->hw_value, 911 bcon, hidden_ssid); 912 913 return rc; 914 } 915 916 static int wil_cfg80211_stop_ap(struct wiphy *wiphy, 917 struct net_device *ndev) 918 { 919 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 920 921 wil_dbg_misc(wil, "%s()\n", __func__); 922 923 netif_carrier_off(ndev); 924 wil_set_recovery_state(wil, fw_recovery_idle); 925 926 mutex_lock(&wil->mutex); 927 928 wmi_pcp_stop(wil); 929 930 __wil_down(wil); 931 932 mutex_unlock(&wil->mutex); 933 934 return 0; 935 } 936 937 static int wil_cfg80211_del_station(struct wiphy *wiphy, 938 struct net_device *dev, 939 struct station_del_parameters *params) 940 { 941 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 942 943 wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac, 944 params->reason_code); 945 946 mutex_lock(&wil->mutex); 947 wil6210_disconnect(wil, params->mac, params->reason_code, false); 948 mutex_unlock(&wil->mutex); 949 950 return 0; 951 } 952 953 /* probe_client handling */ 954 static void wil_probe_client_handle(struct wil6210_priv *wil, 955 struct wil_probe_client_req *req) 956 { 957 struct net_device *ndev = wil_to_ndev(wil); 958 struct wil_sta_info *sta = &wil->sta[req->cid]; 959 /* assume STA is alive if it is still connected, 960 * else FW will disconnect it 961 */ 962 bool alive = (sta->status == wil_sta_connected); 963 964 cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL); 965 } 966 967 static struct list_head *next_probe_client(struct wil6210_priv *wil) 968 { 969 struct list_head *ret = NULL; 970 971 mutex_lock(&wil->probe_client_mutex); 972 973 if (!list_empty(&wil->probe_client_pending)) { 974 ret = wil->probe_client_pending.next; 975 list_del(ret); 976 } 977 978 mutex_unlock(&wil->probe_client_mutex); 979 980 return ret; 981 } 982 983 void wil_probe_client_worker(struct work_struct *work) 984 { 985 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 986 probe_client_worker); 987 struct wil_probe_client_req *req; 988 struct list_head *lh; 989 990 while ((lh = next_probe_client(wil)) != NULL) { 991 req = list_entry(lh, struct wil_probe_client_req, list); 992 993 wil_probe_client_handle(wil, req); 994 kfree(req); 995 } 996 } 997 998 void wil_probe_client_flush(struct wil6210_priv *wil) 999 { 1000 struct wil_probe_client_req *req, *t; 1001 1002 wil_dbg_misc(wil, "%s()\n", __func__); 1003 1004 mutex_lock(&wil->probe_client_mutex); 1005 1006 list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) { 1007 list_del(&req->list); 1008 kfree(req); 1009 } 1010 1011 mutex_unlock(&wil->probe_client_mutex); 1012 } 1013 1014 static int wil_cfg80211_probe_client(struct wiphy *wiphy, 1015 struct net_device *dev, 1016 const u8 *peer, u64 *cookie) 1017 { 1018 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 1019 struct wil_probe_client_req *req; 1020 int cid = wil_find_cid(wil, peer); 1021 1022 wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid); 1023 1024 if (cid < 0) 1025 return -ENOLINK; 1026 1027 req = kzalloc(sizeof(*req), GFP_KERNEL); 1028 if (!req) 1029 return -ENOMEM; 1030 1031 req->cid = cid; 1032 req->cookie = cid; 1033 1034 mutex_lock(&wil->probe_client_mutex); 1035 list_add_tail(&req->list, &wil->probe_client_pending); 1036 mutex_unlock(&wil->probe_client_mutex); 1037 1038 *cookie = req->cookie; 1039 queue_work(wil->wq_service, &wil->probe_client_worker); 1040 return 0; 1041 } 1042 1043 static int wil_cfg80211_change_bss(struct wiphy *wiphy, 1044 struct net_device *dev, 1045 struct bss_parameters *params) 1046 { 1047 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 1048 1049 if (params->ap_isolate >= 0) { 1050 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__, 1051 wil->ap_isolate, params->ap_isolate); 1052 wil->ap_isolate = params->ap_isolate; 1053 } 1054 1055 return 0; 1056 } 1057 1058 static struct cfg80211_ops wil_cfg80211_ops = { 1059 .scan = wil_cfg80211_scan, 1060 .connect = wil_cfg80211_connect, 1061 .disconnect = wil_cfg80211_disconnect, 1062 .change_virtual_intf = wil_cfg80211_change_iface, 1063 .get_station = wil_cfg80211_get_station, 1064 .dump_station = wil_cfg80211_dump_station, 1065 .remain_on_channel = wil_remain_on_channel, 1066 .cancel_remain_on_channel = wil_cancel_remain_on_channel, 1067 .mgmt_tx = wil_cfg80211_mgmt_tx, 1068 .set_monitor_channel = wil_cfg80211_set_channel, 1069 .add_key = wil_cfg80211_add_key, 1070 .del_key = wil_cfg80211_del_key, 1071 .set_default_key = wil_cfg80211_set_default_key, 1072 /* AP mode */ 1073 .change_beacon = wil_cfg80211_change_beacon, 1074 .start_ap = wil_cfg80211_start_ap, 1075 .stop_ap = wil_cfg80211_stop_ap, 1076 .del_station = wil_cfg80211_del_station, 1077 .probe_client = wil_cfg80211_probe_client, 1078 .change_bss = wil_cfg80211_change_bss, 1079 }; 1080 1081 static void wil_wiphy_init(struct wiphy *wiphy) 1082 { 1083 wiphy->max_scan_ssids = 1; 1084 wiphy->max_scan_ie_len = WMI_MAX_IE_LEN; 1085 wiphy->max_num_pmkids = 0 /* TODO: */; 1086 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1087 BIT(NL80211_IFTYPE_AP) | 1088 BIT(NL80211_IFTYPE_MONITOR); 1089 /* TODO: enable P2P when integrated with supplicant: 1090 * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO) 1091 */ 1092 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1093 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 1094 dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n", 1095 __func__, wiphy->flags); 1096 wiphy->probe_resp_offload = 1097 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1098 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 1099 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 1100 1101 wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz; 1102 1103 /* TODO: figure this out */ 1104 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 1105 1106 wiphy->cipher_suites = wil_cipher_suites; 1107 wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites); 1108 wiphy->mgmt_stypes = wil_mgmt_stypes; 1109 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 1110 } 1111 1112 struct wireless_dev *wil_cfg80211_init(struct device *dev) 1113 { 1114 int rc = 0; 1115 struct wireless_dev *wdev; 1116 1117 dev_dbg(dev, "%s()\n", __func__); 1118 1119 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL); 1120 if (!wdev) 1121 return ERR_PTR(-ENOMEM); 1122 1123 wdev->wiphy = wiphy_new(&wil_cfg80211_ops, 1124 sizeof(struct wil6210_priv)); 1125 if (!wdev->wiphy) { 1126 rc = -ENOMEM; 1127 goto out; 1128 } 1129 1130 set_wiphy_dev(wdev->wiphy, dev); 1131 wil_wiphy_init(wdev->wiphy); 1132 1133 rc = wiphy_register(wdev->wiphy); 1134 if (rc < 0) 1135 goto out_failed_reg; 1136 1137 return wdev; 1138 1139 out_failed_reg: 1140 wiphy_free(wdev->wiphy); 1141 out: 1142 kfree(wdev); 1143 1144 return ERR_PTR(rc); 1145 } 1146 1147 void wil_wdev_free(struct wil6210_priv *wil) 1148 { 1149 struct wireless_dev *wdev = wil_to_wdev(wil); 1150 1151 dev_dbg(wil_to_dev(wil), "%s()\n", __func__); 1152 1153 if (!wdev) 1154 return; 1155 1156 wiphy_unregister(wdev->wiphy); 1157 wiphy_free(wdev->wiphy); 1158 kfree(wdev); 1159 } 1160