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, 340 request->ie); 341 if (rc) { 342 wil_err(wil, "Aborting scan, set_ie failed: %d\n", rc); 343 goto out; 344 } 345 346 rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) + 347 cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0])); 348 349 out: 350 if (rc) { 351 del_timer_sync(&wil->scan_timer); 352 wil->scan_request = NULL; 353 } 354 355 return rc; 356 } 357 358 static void wil_print_crypto(struct wil6210_priv *wil, 359 struct cfg80211_crypto_settings *c) 360 { 361 int i, n; 362 363 wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n", 364 c->wpa_versions, c->cipher_group); 365 wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise); 366 n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise)); 367 for (i = 0; i < n; i++) 368 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i, 369 c->ciphers_pairwise[i]); 370 wil_dbg_misc(wil, "}\n"); 371 wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites); 372 n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites)); 373 for (i = 0; i < n; i++) 374 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i, 375 c->akm_suites[i]); 376 wil_dbg_misc(wil, "}\n"); 377 wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n", 378 c->control_port, be16_to_cpu(c->control_port_ethertype), 379 c->control_port_no_encrypt); 380 } 381 382 static void wil_print_connect_params(struct wil6210_priv *wil, 383 struct cfg80211_connect_params *sme) 384 { 385 wil_info(wil, "Connecting to:\n"); 386 if (sme->channel) { 387 wil_info(wil, " Channel: %d freq %d\n", 388 sme->channel->hw_value, sme->channel->center_freq); 389 } 390 if (sme->bssid) 391 wil_info(wil, " BSSID: %pM\n", sme->bssid); 392 if (sme->ssid) 393 print_hex_dump(KERN_INFO, " SSID: ", DUMP_PREFIX_OFFSET, 394 16, 1, sme->ssid, sme->ssid_len, true); 395 wil_info(wil, " Privacy: %s\n", sme->privacy ? "secure" : "open"); 396 wil_print_crypto(wil, &sme->crypto); 397 } 398 399 static int wil_cfg80211_connect(struct wiphy *wiphy, 400 struct net_device *ndev, 401 struct cfg80211_connect_params *sme) 402 { 403 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 404 struct cfg80211_bss *bss; 405 struct wmi_connect_cmd conn; 406 const u8 *ssid_eid; 407 const u8 *rsn_eid; 408 int ch; 409 int rc = 0; 410 411 wil_print_connect_params(wil, sme); 412 413 if (test_bit(wil_status_fwconnecting, wil->status) || 414 test_bit(wil_status_fwconnected, wil->status)) 415 return -EALREADY; 416 417 if (sme->ie_len > WMI_MAX_IE_LEN) { 418 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len); 419 return -ERANGE; 420 } 421 422 rsn_eid = sme->ie ? 423 cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) : 424 NULL; 425 if (sme->privacy && !rsn_eid) 426 wil_info(wil, "WSC connection\n"); 427 428 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, 429 sme->ssid, sme->ssid_len, 430 IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY); 431 if (!bss) { 432 wil_err(wil, "Unable to find BSS\n"); 433 return -ENOENT; 434 } 435 436 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); 437 if (!ssid_eid) { 438 wil_err(wil, "No SSID\n"); 439 rc = -ENOENT; 440 goto out; 441 } 442 wil->privacy = sme->privacy; 443 444 if (wil->privacy) { 445 /* For secure assoc, remove old keys */ 446 rc = wmi_del_cipher_key(wil, 0, bss->bssid, 447 WMI_KEY_USE_PAIRWISE); 448 if (rc) { 449 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n"); 450 goto out; 451 } 452 rc = wmi_del_cipher_key(wil, 0, bss->bssid, 453 WMI_KEY_USE_RX_GROUP); 454 if (rc) { 455 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n"); 456 goto out; 457 } 458 } 459 460 /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info 461 * elements. Send it also in case it's empty, to erase previously set 462 * ies in FW. 463 */ 464 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie); 465 if (rc) { 466 wil_err(wil, "WMI_SET_APPIE_CMD failed\n"); 467 goto out; 468 } 469 470 /* WMI_CONNECT_CMD */ 471 memset(&conn, 0, sizeof(conn)); 472 switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) { 473 case WLAN_CAPABILITY_DMG_TYPE_AP: 474 conn.network_type = WMI_NETTYPE_INFRA; 475 break; 476 case WLAN_CAPABILITY_DMG_TYPE_PBSS: 477 conn.network_type = WMI_NETTYPE_P2P; 478 break; 479 default: 480 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n", 481 bss->capability); 482 goto out; 483 } 484 if (wil->privacy) { 485 if (rsn_eid) { /* regular secure connection */ 486 conn.dot11_auth_mode = WMI_AUTH11_SHARED; 487 conn.auth_mode = WMI_AUTH_WPA2_PSK; 488 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP; 489 conn.pairwise_crypto_len = 16; 490 conn.group_crypto_type = WMI_CRYPT_AES_GCMP; 491 conn.group_crypto_len = 16; 492 } else { /* WSC */ 493 conn.dot11_auth_mode = WMI_AUTH11_WSC; 494 conn.auth_mode = WMI_AUTH_NONE; 495 } 496 } else { /* insecure connection */ 497 conn.dot11_auth_mode = WMI_AUTH11_OPEN; 498 conn.auth_mode = WMI_AUTH_NONE; 499 } 500 501 conn.ssid_len = min_t(u8, ssid_eid[1], 32); 502 memcpy(conn.ssid, ssid_eid+2, conn.ssid_len); 503 504 ch = bss->channel->hw_value; 505 if (ch == 0) { 506 wil_err(wil, "BSS at unknown frequency %dMhz\n", 507 bss->channel->center_freq); 508 rc = -EOPNOTSUPP; 509 goto out; 510 } 511 conn.channel = ch - 1; 512 513 ether_addr_copy(conn.bssid, bss->bssid); 514 ether_addr_copy(conn.dst_mac, bss->bssid); 515 516 set_bit(wil_status_fwconnecting, wil->status); 517 518 rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn)); 519 if (rc == 0) { 520 netif_carrier_on(ndev); 521 /* Connect can take lots of time */ 522 mod_timer(&wil->connect_timer, 523 jiffies + msecs_to_jiffies(2000)); 524 } else { 525 clear_bit(wil_status_fwconnecting, wil->status); 526 } 527 528 out: 529 cfg80211_put_bss(wiphy, bss); 530 531 return rc; 532 } 533 534 static int wil_cfg80211_disconnect(struct wiphy *wiphy, 535 struct net_device *ndev, 536 u16 reason_code) 537 { 538 int rc; 539 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 540 541 wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code); 542 543 rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); 544 545 return rc; 546 } 547 548 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 549 struct cfg80211_mgmt_tx_params *params, 550 u64 *cookie) 551 { 552 const u8 *buf = params->buf; 553 size_t len = params->len; 554 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 555 int rc; 556 bool tx_status = false; 557 struct ieee80211_mgmt *mgmt_frame = (void *)buf; 558 struct wmi_sw_tx_req_cmd *cmd; 559 struct { 560 struct wil6210_mbox_hdr_wmi wmi; 561 struct wmi_sw_tx_complete_event evt; 562 } __packed evt; 563 564 cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL); 565 if (!cmd) { 566 rc = -ENOMEM; 567 goto out; 568 } 569 570 memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN); 571 cmd->len = cpu_to_le16(len); 572 memcpy(cmd->payload, buf, len); 573 574 rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len, 575 WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000); 576 if (rc == 0) 577 tx_status = !evt.evt.status; 578 579 kfree(cmd); 580 out: 581 cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len, 582 tx_status, GFP_KERNEL); 583 return rc; 584 } 585 586 static int wil_cfg80211_set_channel(struct wiphy *wiphy, 587 struct cfg80211_chan_def *chandef) 588 { 589 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 590 struct wireless_dev *wdev = wil->wdev; 591 592 wdev->preset_chandef = *chandef; 593 594 return 0; 595 } 596 597 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil, 598 bool pairwise) 599 { 600 struct wireless_dev *wdev = wil->wdev; 601 enum wmi_key_usage rc; 602 static const char * const key_usage_str[] = { 603 [WMI_KEY_USE_PAIRWISE] = "WMI_KEY_USE_PAIRWISE", 604 [WMI_KEY_USE_RX_GROUP] = "WMI_KEY_USE_RX_GROUP", 605 [WMI_KEY_USE_TX_GROUP] = "WMI_KEY_USE_TX_GROUP", 606 }; 607 608 if (pairwise) { 609 rc = WMI_KEY_USE_PAIRWISE; 610 } else { 611 switch (wdev->iftype) { 612 case NL80211_IFTYPE_STATION: 613 rc = WMI_KEY_USE_RX_GROUP; 614 break; 615 case NL80211_IFTYPE_AP: 616 rc = WMI_KEY_USE_TX_GROUP; 617 break; 618 default: 619 /* TODO: Rx GTK or Tx GTK? */ 620 wil_err(wil, "Can't determine GTK type\n"); 621 rc = WMI_KEY_USE_RX_GROUP; 622 break; 623 } 624 } 625 wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]); 626 627 return rc; 628 } 629 630 static int wil_cfg80211_add_key(struct wiphy *wiphy, 631 struct net_device *ndev, 632 u8 key_index, bool pairwise, 633 const u8 *mac_addr, 634 struct key_params *params) 635 { 636 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 637 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise); 638 639 wil_dbg_misc(wil, "%s(%pM[%d] %s)\n", __func__, mac_addr, key_index, 640 pairwise ? "PTK" : "GTK"); 641 642 return wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len, 643 params->key, key_usage); 644 } 645 646 static int wil_cfg80211_del_key(struct wiphy *wiphy, 647 struct net_device *ndev, 648 u8 key_index, bool pairwise, 649 const u8 *mac_addr) 650 { 651 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 652 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise); 653 654 wil_dbg_misc(wil, "%s(%pM[%d] %s)\n", __func__, mac_addr, key_index, 655 pairwise ? "PTK" : "GTK"); 656 657 return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage); 658 } 659 660 /* Need to be present or wiphy_new() will WARN */ 661 static int wil_cfg80211_set_default_key(struct wiphy *wiphy, 662 struct net_device *ndev, 663 u8 key_index, bool unicast, 664 bool multicast) 665 { 666 return 0; 667 } 668 669 static int wil_remain_on_channel(struct wiphy *wiphy, 670 struct wireless_dev *wdev, 671 struct ieee80211_channel *chan, 672 unsigned int duration, 673 u64 *cookie) 674 { 675 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 676 int rc; 677 678 /* TODO: handle duration */ 679 wil_info(wil, "%s(%d, %d ms)\n", __func__, chan->center_freq, duration); 680 681 rc = wmi_set_channel(wil, chan->hw_value); 682 if (rc) 683 return rc; 684 685 rc = wmi_rxon(wil, true); 686 687 return rc; 688 } 689 690 static int wil_cancel_remain_on_channel(struct wiphy *wiphy, 691 struct wireless_dev *wdev, 692 u64 cookie) 693 { 694 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 695 int rc; 696 697 wil_info(wil, "%s()\n", __func__); 698 699 rc = wmi_rxon(wil, false); 700 701 return rc; 702 } 703 704 static void wil_print_bcon_data(struct cfg80211_beacon_data *b) 705 { 706 print_hex_dump_bytes("head ", DUMP_PREFIX_OFFSET, 707 b->head, b->head_len); 708 print_hex_dump_bytes("tail ", DUMP_PREFIX_OFFSET, 709 b->tail, b->tail_len); 710 print_hex_dump_bytes("BCON IE ", DUMP_PREFIX_OFFSET, 711 b->beacon_ies, b->beacon_ies_len); 712 print_hex_dump_bytes("PROBE ", DUMP_PREFIX_OFFSET, 713 b->probe_resp, b->probe_resp_len); 714 print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET, 715 b->proberesp_ies, b->proberesp_ies_len); 716 print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET, 717 b->assocresp_ies, b->assocresp_ies_len); 718 } 719 720 static int wil_fix_bcon(struct wil6210_priv *wil, 721 struct cfg80211_beacon_data *bcon) 722 { 723 struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp; 724 size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); 725 int rc = 0; 726 727 if (bcon->probe_resp_len <= hlen) 728 return 0; 729 730 if (!bcon->assocresp_ies) { 731 bcon->assocresp_ies = f->u.probe_resp.variable; 732 bcon->assocresp_ies_len = bcon->probe_resp_len - hlen; 733 rc = 1; 734 } 735 736 return rc; 737 } 738 739 /* internal functions for device reset and starting AP */ 740 static int _wil_cfg80211_set_ies(struct wiphy *wiphy, 741 size_t probe_ies_len, const u8 *probe_ies, 742 size_t assoc_ies_len, const u8 *assoc_ies) 743 744 { 745 int rc; 746 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 747 748 /* FW do not form regular beacon, so bcon IE's are not set 749 * For the DMG bcon, when it will be supported, bcon IE's will 750 * be reused; add something like: 751 * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len, 752 * bcon->beacon_ies); 753 */ 754 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, probe_ies_len, probe_ies); 755 if (rc) { 756 wil_err(wil, "set_ie(PROBE_RESP) failed\n"); 757 return rc; 758 } 759 760 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, assoc_ies_len, assoc_ies); 761 if (rc) { 762 wil_err(wil, "set_ie(ASSOC_RESP) failed\n"); 763 return rc; 764 } 765 766 return 0; 767 } 768 769 static int _wil_cfg80211_start_ap(struct wiphy *wiphy, 770 struct net_device *ndev, 771 const u8 *ssid, size_t ssid_len, u32 privacy, 772 int bi, u8 chan, 773 size_t probe_ies_len, const u8 *probe_ies, 774 size_t assoc_ies_len, const u8 *assoc_ies, 775 u8 hidden_ssid) 776 { 777 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 778 int rc; 779 struct wireless_dev *wdev = ndev->ieee80211_ptr; 780 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype); 781 782 wil_set_recovery_state(wil, fw_recovery_idle); 783 784 mutex_lock(&wil->mutex); 785 786 __wil_down(wil); 787 rc = __wil_up(wil); 788 if (rc) 789 goto out; 790 791 rc = wmi_set_ssid(wil, ssid_len, ssid); 792 if (rc) 793 goto out; 794 795 rc = _wil_cfg80211_set_ies(wiphy, probe_ies_len, probe_ies, 796 assoc_ies_len, assoc_ies); 797 if (rc) 798 goto out; 799 800 wil->privacy = privacy; 801 wil->channel = chan; 802 wil->hidden_ssid = hidden_ssid; 803 804 netif_carrier_on(ndev); 805 806 rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid); 807 if (rc) 808 goto err_pcp_start; 809 810 rc = wil_bcast_init(wil); 811 if (rc) 812 goto err_bcast; 813 814 goto out; /* success */ 815 816 err_bcast: 817 wmi_pcp_stop(wil); 818 err_pcp_start: 819 netif_carrier_off(ndev); 820 out: 821 mutex_unlock(&wil->mutex); 822 return rc; 823 } 824 825 static int wil_cfg80211_change_beacon(struct wiphy *wiphy, 826 struct net_device *ndev, 827 struct cfg80211_beacon_data *bcon) 828 { 829 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 830 struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp; 831 size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); 832 const u8 *pr_ies = NULL; 833 size_t pr_ies_len = 0; 834 int rc; 835 u32 privacy = 0; 836 837 wil_dbg_misc(wil, "%s()\n", __func__); 838 wil_print_bcon_data(bcon); 839 840 if (bcon->probe_resp_len > hlen) { 841 pr_ies = f->u.probe_resp.variable; 842 pr_ies_len = bcon->probe_resp_len - hlen; 843 } 844 845 if (wil_fix_bcon(wil, bcon)) { 846 wil_dbg_misc(wil, "Fixed bcon\n"); 847 wil_print_bcon_data(bcon); 848 } 849 850 if (pr_ies && cfg80211_find_ie(WLAN_EID_RSN, pr_ies, pr_ies_len)) 851 privacy = 1; 852 853 /* in case privacy has changed, need to restart the AP */ 854 if (wil->privacy != privacy) { 855 struct wireless_dev *wdev = ndev->ieee80211_ptr; 856 857 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n", 858 wil->privacy, privacy); 859 860 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid, 861 wdev->ssid_len, privacy, 862 wdev->beacon_interval, 863 wil->channel, pr_ies_len, pr_ies, 864 bcon->assocresp_ies_len, 865 bcon->assocresp_ies, 866 wil->hidden_ssid); 867 } else { 868 rc = _wil_cfg80211_set_ies(wiphy, pr_ies_len, pr_ies, 869 bcon->assocresp_ies_len, 870 bcon->assocresp_ies); 871 } 872 873 return rc; 874 } 875 876 static int wil_cfg80211_start_ap(struct wiphy *wiphy, 877 struct net_device *ndev, 878 struct cfg80211_ap_settings *info) 879 { 880 int rc; 881 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 882 struct ieee80211_channel *channel = info->chandef.chan; 883 struct cfg80211_beacon_data *bcon = &info->beacon; 884 struct cfg80211_crypto_settings *crypto = &info->crypto; 885 struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp; 886 size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); 887 const u8 *pr_ies = NULL; 888 size_t pr_ies_len = 0; 889 u8 hidden_ssid; 890 891 wil_dbg_misc(wil, "%s()\n", __func__); 892 893 if (!channel) { 894 wil_err(wil, "AP: No channel???\n"); 895 return -EINVAL; 896 } 897 898 switch (info->hidden_ssid) { 899 case NL80211_HIDDEN_SSID_NOT_IN_USE: 900 hidden_ssid = WMI_HIDDEN_SSID_DISABLED; 901 break; 902 903 case NL80211_HIDDEN_SSID_ZERO_LEN: 904 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY; 905 break; 906 907 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 908 hidden_ssid = WMI_HIDDEN_SSID_CLEAR; 909 break; 910 911 default: 912 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid); 913 return -EOPNOTSUPP; 914 } 915 wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value, 916 channel->center_freq, info->privacy ? "secure" : "open"); 917 wil_dbg_misc(wil, "Privacy: %d auth_type %d\n", 918 info->privacy, info->auth_type); 919 wil_dbg_misc(wil, "Hidden SSID mode: %d\n", 920 info->hidden_ssid); 921 wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval, 922 info->dtim_period); 923 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET, 924 info->ssid, info->ssid_len); 925 wil_print_bcon_data(bcon); 926 wil_print_crypto(wil, crypto); 927 928 if (bcon->probe_resp_len > hlen) { 929 pr_ies = f->u.probe_resp.variable; 930 pr_ies_len = bcon->probe_resp_len - hlen; 931 } 932 933 if (wil_fix_bcon(wil, bcon)) { 934 wil_dbg_misc(wil, "Fixed bcon\n"); 935 wil_print_bcon_data(bcon); 936 } 937 938 rc = _wil_cfg80211_start_ap(wiphy, ndev, 939 info->ssid, info->ssid_len, info->privacy, 940 info->beacon_interval, channel->hw_value, 941 pr_ies_len, pr_ies, 942 bcon->assocresp_ies_len, 943 bcon->assocresp_ies, 944 hidden_ssid); 945 946 return rc; 947 } 948 949 static int wil_cfg80211_stop_ap(struct wiphy *wiphy, 950 struct net_device *ndev) 951 { 952 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 953 954 wil_dbg_misc(wil, "%s()\n", __func__); 955 956 netif_carrier_off(ndev); 957 wil_set_recovery_state(wil, fw_recovery_idle); 958 959 mutex_lock(&wil->mutex); 960 961 wmi_pcp_stop(wil); 962 963 __wil_down(wil); 964 965 mutex_unlock(&wil->mutex); 966 967 return 0; 968 } 969 970 static int wil_cfg80211_del_station(struct wiphy *wiphy, 971 struct net_device *dev, 972 struct station_del_parameters *params) 973 { 974 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 975 976 wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac, 977 params->reason_code); 978 979 mutex_lock(&wil->mutex); 980 wil6210_disconnect(wil, params->mac, params->reason_code, false); 981 mutex_unlock(&wil->mutex); 982 983 return 0; 984 } 985 986 /* probe_client handling */ 987 static void wil_probe_client_handle(struct wil6210_priv *wil, 988 struct wil_probe_client_req *req) 989 { 990 struct net_device *ndev = wil_to_ndev(wil); 991 struct wil_sta_info *sta = &wil->sta[req->cid]; 992 /* assume STA is alive if it is still connected, 993 * else FW will disconnect it 994 */ 995 bool alive = (sta->status == wil_sta_connected); 996 997 cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL); 998 } 999 1000 static struct list_head *next_probe_client(struct wil6210_priv *wil) 1001 { 1002 struct list_head *ret = NULL; 1003 1004 mutex_lock(&wil->probe_client_mutex); 1005 1006 if (!list_empty(&wil->probe_client_pending)) { 1007 ret = wil->probe_client_pending.next; 1008 list_del(ret); 1009 } 1010 1011 mutex_unlock(&wil->probe_client_mutex); 1012 1013 return ret; 1014 } 1015 1016 void wil_probe_client_worker(struct work_struct *work) 1017 { 1018 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1019 probe_client_worker); 1020 struct wil_probe_client_req *req; 1021 struct list_head *lh; 1022 1023 while ((lh = next_probe_client(wil)) != NULL) { 1024 req = list_entry(lh, struct wil_probe_client_req, list); 1025 1026 wil_probe_client_handle(wil, req); 1027 kfree(req); 1028 } 1029 } 1030 1031 void wil_probe_client_flush(struct wil6210_priv *wil) 1032 { 1033 struct wil_probe_client_req *req, *t; 1034 1035 wil_dbg_misc(wil, "%s()\n", __func__); 1036 1037 mutex_lock(&wil->probe_client_mutex); 1038 1039 list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) { 1040 list_del(&req->list); 1041 kfree(req); 1042 } 1043 1044 mutex_unlock(&wil->probe_client_mutex); 1045 } 1046 1047 static int wil_cfg80211_probe_client(struct wiphy *wiphy, 1048 struct net_device *dev, 1049 const u8 *peer, u64 *cookie) 1050 { 1051 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 1052 struct wil_probe_client_req *req; 1053 int cid = wil_find_cid(wil, peer); 1054 1055 wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid); 1056 1057 if (cid < 0) 1058 return -ENOLINK; 1059 1060 req = kzalloc(sizeof(*req), GFP_KERNEL); 1061 if (!req) 1062 return -ENOMEM; 1063 1064 req->cid = cid; 1065 req->cookie = cid; 1066 1067 mutex_lock(&wil->probe_client_mutex); 1068 list_add_tail(&req->list, &wil->probe_client_pending); 1069 mutex_unlock(&wil->probe_client_mutex); 1070 1071 *cookie = req->cookie; 1072 queue_work(wil->wq_service, &wil->probe_client_worker); 1073 return 0; 1074 } 1075 1076 static int wil_cfg80211_change_bss(struct wiphy *wiphy, 1077 struct net_device *dev, 1078 struct bss_parameters *params) 1079 { 1080 struct wil6210_priv *wil = wiphy_to_wil(wiphy); 1081 1082 if (params->ap_isolate >= 0) { 1083 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__, 1084 wil->ap_isolate, params->ap_isolate); 1085 wil->ap_isolate = params->ap_isolate; 1086 } 1087 1088 return 0; 1089 } 1090 1091 static struct cfg80211_ops wil_cfg80211_ops = { 1092 .scan = wil_cfg80211_scan, 1093 .connect = wil_cfg80211_connect, 1094 .disconnect = wil_cfg80211_disconnect, 1095 .change_virtual_intf = wil_cfg80211_change_iface, 1096 .get_station = wil_cfg80211_get_station, 1097 .dump_station = wil_cfg80211_dump_station, 1098 .remain_on_channel = wil_remain_on_channel, 1099 .cancel_remain_on_channel = wil_cancel_remain_on_channel, 1100 .mgmt_tx = wil_cfg80211_mgmt_tx, 1101 .set_monitor_channel = wil_cfg80211_set_channel, 1102 .add_key = wil_cfg80211_add_key, 1103 .del_key = wil_cfg80211_del_key, 1104 .set_default_key = wil_cfg80211_set_default_key, 1105 /* AP mode */ 1106 .change_beacon = wil_cfg80211_change_beacon, 1107 .start_ap = wil_cfg80211_start_ap, 1108 .stop_ap = wil_cfg80211_stop_ap, 1109 .del_station = wil_cfg80211_del_station, 1110 .probe_client = wil_cfg80211_probe_client, 1111 .change_bss = wil_cfg80211_change_bss, 1112 }; 1113 1114 static void wil_wiphy_init(struct wiphy *wiphy) 1115 { 1116 wiphy->max_scan_ssids = 1; 1117 wiphy->max_scan_ie_len = WMI_MAX_IE_LEN; 1118 wiphy->max_num_pmkids = 0 /* TODO: */; 1119 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1120 BIT(NL80211_IFTYPE_AP) | 1121 BIT(NL80211_IFTYPE_MONITOR); 1122 /* TODO: enable P2P when integrated with supplicant: 1123 * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO) 1124 */ 1125 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 1126 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 1127 dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n", 1128 __func__, wiphy->flags); 1129 wiphy->probe_resp_offload = 1130 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 1131 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 1132 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 1133 1134 wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz; 1135 1136 /* TODO: figure this out */ 1137 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 1138 1139 wiphy->cipher_suites = wil_cipher_suites; 1140 wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites); 1141 wiphy->mgmt_stypes = wil_mgmt_stypes; 1142 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 1143 } 1144 1145 struct wireless_dev *wil_cfg80211_init(struct device *dev) 1146 { 1147 int rc = 0; 1148 struct wireless_dev *wdev; 1149 1150 dev_dbg(dev, "%s()\n", __func__); 1151 1152 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL); 1153 if (!wdev) 1154 return ERR_PTR(-ENOMEM); 1155 1156 wdev->wiphy = wiphy_new(&wil_cfg80211_ops, 1157 sizeof(struct wil6210_priv)); 1158 if (!wdev->wiphy) { 1159 rc = -ENOMEM; 1160 goto out; 1161 } 1162 1163 set_wiphy_dev(wdev->wiphy, dev); 1164 wil_wiphy_init(wdev->wiphy); 1165 1166 rc = wiphy_register(wdev->wiphy); 1167 if (rc < 0) 1168 goto out_failed_reg; 1169 1170 return wdev; 1171 1172 out_failed_reg: 1173 wiphy_free(wdev->wiphy); 1174 out: 1175 kfree(wdev); 1176 1177 return ERR_PTR(rc); 1178 } 1179 1180 void wil_wdev_free(struct wil6210_priv *wil) 1181 { 1182 struct wireless_dev *wdev = wil_to_wdev(wil); 1183 1184 dev_dbg(wil_to_dev(wil), "%s()\n", __func__); 1185 1186 if (!wdev) 1187 return; 1188 1189 wiphy_unregister(wdev->wiphy); 1190 wiphy_free(wdev->wiphy); 1191 kfree(wdev); 1192 } 1193