drivers/net/wireless/ath/wil6210/cfg80211.c

   1 /*
   2  * Copyright (c) 2012-2016 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 WIL_MAX_ROC_DURATION_MS 5000
  22
  23 #define CHAN60G(_channel, _flags) {                             \
  24         .band                   = NL80211_BAND_60GHZ,           \
  25         .center_freq            = 56160 + (2160 * (_channel)),  \
  26         .hw_value               = (_channel),                   \
  27         .flags                  = (_flags),                     \
  28         .max_antenna_gain       = 0,                            \
  29         .max_power              = 40,                           \
  30 }
  31
  32 static struct ieee80211_channel wil_60ghz_channels[] = {
  33         CHAN60G(1, 0),
  34         CHAN60G(2, 0),
  35         CHAN60G(3, 0),
  36 /* channel 4 not supported yet */
  37 };
  38
  39 static struct ieee80211_supported_band wil_band_60ghz = {
  40         .channels = wil_60ghz_channels,
  41         .n_channels = ARRAY_SIZE(wil_60ghz_channels),
  42         .ht_cap = {
  43                 .ht_supported = true,
  44                 .cap = 0, /* TODO */
  45                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
  46                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
  47                 .mcs = {
  48                                 /* MCS 1..12 - SC PHY */
  49                         .rx_mask = {0xfe, 0x1f}, /* 1..12 */
  50                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
  51                 },
  52         },
  53 };
  54
  55 static const struct ieee80211_txrx_stypes
  56 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
  57         [NL80211_IFTYPE_STATION] = {
  58                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  59                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  60                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  61                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  62         },
  63         [NL80211_IFTYPE_AP] = {
  64                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  65                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  66                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  67                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  68         },
  69         [NL80211_IFTYPE_P2P_CLIENT] = {
  70                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  71                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  72                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  73                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  74         },
  75         [NL80211_IFTYPE_P2P_GO] = {
  76                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  77                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  78                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  79                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  80         },
  81         [NL80211_IFTYPE_P2P_DEVICE] = {
  82                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  83                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  84                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  85                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  86         },
  87 };
  88
  89 static const u32 wil_cipher_suites[] = {
  90         WLAN_CIPHER_SUITE_GCMP,
  91 };
  92
  93 static const char * const key_usage_str[] = {
  94         [WMI_KEY_USE_PAIRWISE]  = "PTK",
  95         [WMI_KEY_USE_RX_GROUP]  = "RX_GTK",
  96         [WMI_KEY_USE_TX_GROUP]  = "TX_GTK",
  97 };
  98
  99 int wil_iftype_nl2wmi(enum nl80211_iftype type)
 100 {
 101         static const struct {
 102                 enum nl80211_iftype nl;
 103                 enum wmi_network_type wmi;
 104         } __nl2wmi[] = {
 105                 {NL80211_IFTYPE_ADHOC,          WMI_NETTYPE_ADHOC},
 106                 {NL80211_IFTYPE_STATION,        WMI_NETTYPE_INFRA},
 107                 {NL80211_IFTYPE_AP,             WMI_NETTYPE_AP},
 108                 {NL80211_IFTYPE_P2P_CLIENT,     WMI_NETTYPE_P2P},
 109                 {NL80211_IFTYPE_P2P_GO,         WMI_NETTYPE_P2P},
 110                 {NL80211_IFTYPE_MONITOR,        WMI_NETTYPE_ADHOC}, /* FIXME */
 111         };
 112         uint i;
 113
 114         for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
 115                 if (__nl2wmi[i].nl == type)
 116                         return __nl2wmi[i].wmi;
 117         }
 118
 119         return -EOPNOTSUPP;
 120 }
 121
 122 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
 123                        struct station_info *sinfo)
 124 {
 125         struct wmi_notify_req_cmd cmd = {
 126                 .cid = cid,
 127                 .interval_usec = 0,
 128         };
 129         struct {
 130                 struct wmi_cmd_hdr wmi;
 131                 struct wmi_notify_req_done_event evt;
 132         } __packed reply;
 133         struct wil_net_stats *stats = &wil->sta[cid].stats;
 134         int rc;
 135
 136         rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
 137                       WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
 138         if (rc)
 139                 return rc;
 140
 141         wil_dbg_wmi(wil, "Link status for CID %d: {\n"
 142                     "  MCS %d TSF 0x%016llx\n"
 143                     "  BF status 0x%08x SNR 0x%08x SQI %d%%\n"
 144                     "  Tx Tpt %d goodput %d Rx goodput %d\n"
 145                     "  Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n",
 146                     cid, le16_to_cpu(reply.evt.bf_mcs),
 147                     le64_to_cpu(reply.evt.tsf), reply.evt.status,
 148                     le32_to_cpu(reply.evt.snr_val),
 149                     reply.evt.sqi,
 150                     le32_to_cpu(reply.evt.tx_tpt),
 151                     le32_to_cpu(reply.evt.tx_goodput),
 152                     le32_to_cpu(reply.evt.rx_goodput),
 153                     le16_to_cpu(reply.evt.my_rx_sector),
 154                     le16_to_cpu(reply.evt.my_tx_sector),
 155                     le16_to_cpu(reply.evt.other_rx_sector),
 156                     le16_to_cpu(reply.evt.other_tx_sector));
 157
 158         sinfo->generation = wil->sinfo_gen;
 159
 160         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) |
 161                         BIT(NL80211_STA_INFO_TX_BYTES) |
 162                         BIT(NL80211_STA_INFO_RX_PACKETS) |
 163                         BIT(NL80211_STA_INFO_TX_PACKETS) |
 164                         BIT(NL80211_STA_INFO_RX_BITRATE) |
 165                         BIT(NL80211_STA_INFO_TX_BITRATE) |
 166                         BIT(NL80211_STA_INFO_RX_DROP_MISC) |
 167                         BIT(NL80211_STA_INFO_TX_FAILED);
 168
 169         sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 170         sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
 171         sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 172         sinfo->rxrate.mcs = stats->last_mcs_rx;
 173         sinfo->rx_bytes = stats->rx_bytes;
 174         sinfo->rx_packets = stats->rx_packets;
 175         sinfo->rx_dropped_misc = stats->rx_dropped;
 176         sinfo->tx_bytes = stats->tx_bytes;
 177         sinfo->tx_packets = stats->tx_packets;
 178         sinfo->tx_failed = stats->tx_errors;
 179
 180         if (test_bit(wil_status_fwconnected, wil->status)) {
 181                 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
 182                 sinfo->signal = reply.evt.sqi;
 183         }
 184
 185         return rc;
 186 }
 187
 188 static int wil_cfg80211_get_station(struct wiphy *wiphy,
 189                                     struct net_device *ndev,
 190                                     const u8 *mac, struct station_info *sinfo)
 191 {
 192         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 193         int rc;
 194
 195         int cid = wil_find_cid(wil, mac);
 196
 197         wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
 198         if (cid < 0)
 199                 return cid;
 200
 201         rc = wil_cid_fill_sinfo(wil, cid, sinfo);
 202
 203         return rc;
 204 }
 205
 206 /*
 207  * Find @idx-th active STA for station dump.
 208  */
 209 static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx)
 210 {
 211         int i;
 212
 213         for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
 214                 if (wil->sta[i].status == wil_sta_unused)
 215                         continue;
 216                 if (idx == 0)
 217                         return i;
 218                 idx--;
 219         }
 220
 221         return -ENOENT;
 222 }
 223
 224 static int wil_cfg80211_dump_station(struct wiphy *wiphy,
 225                                      struct net_device *dev, int idx,
 226                                      u8 *mac, struct station_info *sinfo)
 227 {
 228         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 229         int rc;
 230         int cid = wil_find_cid_by_idx(wil, idx);
 231
 232         if (cid < 0)
 233                 return -ENOENT;
 234
 235         ether_addr_copy(mac, wil->sta[cid].addr);
 236         wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
 237
 238         rc = wil_cid_fill_sinfo(wil, cid, sinfo);
 239
 240         return rc;
 241 }
 242
 243 static struct wireless_dev *
 244 wil_cfg80211_add_iface(struct wiphy *wiphy, const char *name,
 245                        unsigned char name_assign_type,
 246                        enum nl80211_iftype type,
 247                        u32 *flags, struct vif_params *params)
 248 {
 249         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 250         struct net_device *ndev = wil_to_ndev(wil);
 251         struct wireless_dev *p2p_wdev;
 252
 253         wil_dbg_misc(wil, "%s()\n", __func__);
 254
 255         if (type != NL80211_IFTYPE_P2P_DEVICE) {
 256                 wil_err(wil, "%s: unsupported iftype %d\n", __func__, type);
 257                 return ERR_PTR(-EINVAL);
 258         }
 259
 260         if (wil->p2p_wdev) {
 261                 wil_err(wil, "%s: P2P_DEVICE interface already created\n",
 262                         __func__);
 263                 return ERR_PTR(-EINVAL);
 264         }
 265
 266         p2p_wdev = kzalloc(sizeof(*p2p_wdev), GFP_KERNEL);
 267         if (!p2p_wdev)
 268                 return ERR_PTR(-ENOMEM);
 269
 270         p2p_wdev->iftype = type;
 271         p2p_wdev->wiphy = wiphy;
 272         /* use our primary ethernet address */
 273         ether_addr_copy(p2p_wdev->address, ndev->perm_addr);
 274
 275         wil->p2p_wdev = p2p_wdev;
 276
 277         return p2p_wdev;
 278 }
 279
 280 static int wil_cfg80211_del_iface(struct wiphy *wiphy,
 281                                   struct wireless_dev *wdev)
 282 {
 283         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 284
 285         wil_dbg_misc(wil, "%s()\n", __func__);
 286
 287         if (wdev != wil->p2p_wdev) {
 288                 wil_err(wil, "%s: delete of incorrect interface 0x%p\n",
 289                         __func__, wdev);
 290                 return -EINVAL;
 291         }
 292
 293         wil_p2p_wdev_free(wil);
 294
 295         return 0;
 296 }
 297
 298 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
 299                                      struct net_device *ndev,
 300                                      enum nl80211_iftype type, u32 *flags,
 301                                      struct vif_params *params)
 302 {
 303         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 304         struct wireless_dev *wdev = wil_to_wdev(wil);
 305         int rc;
 306
 307         wil_dbg_misc(wil, "%s() type=%d\n", __func__, type);
 308
 309         if (netif_running(wil_to_ndev(wil)) && !wil_is_recovery_blocked(wil)) {
 310                 wil_dbg_misc(wil, "interface is up. resetting...\n");
 311                 mutex_lock(&wil->mutex);
 312                 __wil_down(wil);
 313                 rc = __wil_up(wil);
 314                 mutex_unlock(&wil->mutex);
 315
 316                 if (rc)
 317                         return rc;
 318         }
 319
 320         switch (type) {
 321         case NL80211_IFTYPE_STATION:
 322         case NL80211_IFTYPE_AP:
 323         case NL80211_IFTYPE_P2P_CLIENT:
 324         case NL80211_IFTYPE_P2P_GO:
 325                 break;
 326         case NL80211_IFTYPE_MONITOR:
 327                 if (flags)
 328                         wil->monitor_flags = *flags;
 329                 else
 330                         wil->monitor_flags = 0;
 331
 332                 break;
 333         default:
 334                 return -EOPNOTSUPP;
 335         }
 336
 337         wdev->iftype = type;
 338
 339         return 0;
 340 }
 341
 342 static int wil_cfg80211_scan(struct wiphy *wiphy,
 343                              struct cfg80211_scan_request *request)
 344 {
 345         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 346         struct wireless_dev *wdev = request->wdev;
 347         struct {
 348                 struct wmi_start_scan_cmd cmd;
 349                 u16 chnl[4];
 350         } __packed cmd;
 351         uint i, n;
 352         int rc;
 353
 354         wil_dbg_misc(wil, "%s(), wdev=0x%p iftype=%d\n",
 355                      __func__, wdev, wdev->iftype);
 356
 357         if (wil->scan_request) {
 358                 wil_err(wil, "Already scanning\n");
 359                 return -EAGAIN;
 360         }
 361
 362         /* check we are client side */
 363         switch (wdev->iftype) {
 364         case NL80211_IFTYPE_STATION:
 365         case NL80211_IFTYPE_P2P_CLIENT:
 366         case NL80211_IFTYPE_P2P_DEVICE:
 367                 break;
 368         default:
 369                 return -EOPNOTSUPP;
 370         }
 371
 372         /* FW don't support scan after connection attempt */
 373         if (test_bit(wil_status_dontscan, wil->status)) {
 374                 wil_err(wil, "Can't scan now\n");
 375                 return -EBUSY;
 376         }
 377
 378         /* social scan on P2P_DEVICE is handled as p2p search */
 379         if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
 380             wil_p2p_is_social_scan(request)) {
 381                 wil->scan_request = request;
 382                 wil->radio_wdev = wdev;
 383                 rc = wil_p2p_search(wil, request);
 384                 if (rc) {
 385                         wil->radio_wdev = wil_to_wdev(wil);
 386                         wil->scan_request = NULL;
 387                 }
 388                 return rc;
 389         }
 390
 391         (void)wil_p2p_stop_discovery(wil);
 392
 393         wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
 394         wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
 395
 396         for (i = 0; i < request->n_ssids; i++) {
 397                 wil_dbg_misc(wil, "SSID[%d]", i);
 398                 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 399                                      request->ssids[i].ssid,
 400                                      request->ssids[i].ssid_len);
 401         }
 402
 403         if (request->n_ssids)
 404                 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
 405                                   request->ssids[0].ssid);
 406         else
 407                 rc = wmi_set_ssid(wil, 0, NULL);
 408
 409         if (rc) {
 410                 wil_err(wil, "set SSID for scan request failed: %d\n", rc);
 411                 return rc;
 412         }
 413
 414         wil->scan_request = request;
 415         mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 416
 417         memset(&cmd, 0, sizeof(cmd));
 418         cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
 419         cmd.cmd.num_channels = 0;
 420         n = min(request->n_channels, 4U);
 421         for (i = 0; i < n; i++) {
 422                 int ch = request->channels[i]->hw_value;
 423
 424                 if (ch == 0) {
 425                         wil_err(wil,
 426                                 "Scan requested for unknown frequency %dMhz\n",
 427                                 request->channels[i]->center_freq);
 428                         continue;
 429                 }
 430                 /* 0-based channel indexes */
 431                 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 432                 wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 433                              request->channels[i]->center_freq);
 434         }
 435
 436         if (request->ie_len)
 437                 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
 438                                      request->ie, request->ie_len);
 439         else
 440                 wil_dbg_misc(wil, "Scan has no IE's\n");
 441
 442         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie);
 443         if (rc)
 444                 goto out;
 445
 446         if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
 447                 cmd.cmd.discovery_mode = 1;
 448                 wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
 449         }
 450
 451         wil->radio_wdev = wdev;
 452         rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 453                         cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 454
 455 out:
 456         if (rc) {
 457                 del_timer_sync(&wil->scan_timer);
 458                 wil->radio_wdev = wil_to_wdev(wil);
 459                 wil->scan_request = NULL;
 460         }
 461
 462         return rc;
 463 }
 464
 465 static void wil_print_crypto(struct wil6210_priv *wil,
 466                              struct cfg80211_crypto_settings *c)
 467 {
 468         int i, n;
 469
 470         wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
 471                      c->wpa_versions, c->cipher_group);
 472         wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
 473         n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
 474         for (i = 0; i < n; i++)
 475                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 476                              c->ciphers_pairwise[i]);
 477         wil_dbg_misc(wil, "}\n");
 478         wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
 479         n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
 480         for (i = 0; i < n; i++)
 481                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 482                              c->akm_suites[i]);
 483         wil_dbg_misc(wil, "}\n");
 484         wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
 485                      c->control_port, be16_to_cpu(c->control_port_ethertype),
 486                      c->control_port_no_encrypt);
 487 }
 488
 489 static void wil_print_connect_params(struct wil6210_priv *wil,
 490                                      struct cfg80211_connect_params *sme)
 491 {
 492         wil_info(wil, "Connecting to:\n");
 493         if (sme->channel) {
 494                 wil_info(wil, "  Channel: %d freq %d\n",
 495                          sme->channel->hw_value, sme->channel->center_freq);
 496         }
 497         if (sme->bssid)
 498                 wil_info(wil, "  BSSID: %pM\n", sme->bssid);
 499         if (sme->ssid)
 500                 print_hex_dump(KERN_INFO, "  SSID: ", DUMP_PREFIX_OFFSET,
 501                                16, 1, sme->ssid, sme->ssid_len, true);
 502         wil_info(wil, "  Privacy: %s\n", sme->privacy ? "secure" : "open");
 503         wil_info(wil, "  PBSS: %d\n", sme->pbss);
 504         wil_print_crypto(wil, &sme->crypto);
 505 }
 506
 507 static int wil_cfg80211_connect(struct wiphy *wiphy,
 508                                 struct net_device *ndev,
 509                                 struct cfg80211_connect_params *sme)
 510 {
 511         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 512         struct cfg80211_bss *bss;
 513         struct wmi_connect_cmd conn;
 514         const u8 *ssid_eid;
 515         const u8 *rsn_eid;
 516         int ch;
 517         int rc = 0;
 518         enum ieee80211_bss_type bss_type = IEEE80211_BSS_TYPE_ESS;
 519
 520         wil_dbg_misc(wil, "%s()\n", __func__);
 521         wil_print_connect_params(wil, sme);
 522
 523         if (test_bit(wil_status_fwconnecting, wil->status) ||
 524             test_bit(wil_status_fwconnected, wil->status))
 525                 return -EALREADY;
 526
 527         if (sme->ie_len > WMI_MAX_IE_LEN) {
 528                 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
 529                 return -ERANGE;
 530         }
 531
 532         rsn_eid = sme->ie ?
 533                         cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 534                         NULL;
 535         if (sme->privacy && !rsn_eid)
 536                 wil_info(wil, "WSC connection\n");
 537
 538         if (sme->pbss)
 539                 bss_type = IEEE80211_BSS_TYPE_PBSS;
 540
 541         bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 542                                sme->ssid, sme->ssid_len,
 543                                bss_type, IEEE80211_PRIVACY_ANY);
 544         if (!bss) {
 545                 wil_err(wil, "Unable to find BSS\n");
 546                 return -ENOENT;
 547         }
 548
 549         ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 550         if (!ssid_eid) {
 551                 wil_err(wil, "No SSID\n");
 552                 rc = -ENOENT;
 553                 goto out;
 554         }
 555         wil->privacy = sme->privacy;
 556
 557         if (wil->privacy) {
 558                 /* For secure assoc, remove old keys */
 559                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 560                                         WMI_KEY_USE_PAIRWISE);
 561                 if (rc) {
 562                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
 563                         goto out;
 564                 }
 565                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 566                                         WMI_KEY_USE_RX_GROUP);
 567                 if (rc) {
 568                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
 569                         goto out;
 570                 }
 571         }
 572
 573         /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
 574          * elements. Send it also in case it's empty, to erase previously set
 575          * ies in FW.
 576          */
 577         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 578         if (rc)
 579                 goto out;
 580
 581         /* WMI_CONNECT_CMD */
 582         memset(&conn, 0, sizeof(conn));
 583         switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
 584         case WLAN_CAPABILITY_DMG_TYPE_AP:
 585                 conn.network_type = WMI_NETTYPE_INFRA;
 586                 break;
 587         case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 588                 conn.network_type = WMI_NETTYPE_P2P;
 589                 break;
 590         default:
 591                 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 592                         bss->capability);
 593                 goto out;
 594         }
 595         if (wil->privacy) {
 596                 if (rsn_eid) { /* regular secure connection */
 597                         conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 598                         conn.auth_mode = WMI_AUTH_WPA2_PSK;
 599                         conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 600                         conn.pairwise_crypto_len = 16;
 601                         conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
 602                         conn.group_crypto_len = 16;
 603                 } else { /* WSC */
 604                         conn.dot11_auth_mode = WMI_AUTH11_WSC;
 605                         conn.auth_mode = WMI_AUTH_NONE;
 606                 }
 607         } else { /* insecure connection */
 608                 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 609                 conn.auth_mode = WMI_AUTH_NONE;
 610         }
 611
 612         conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 613         memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 614
 615         ch = bss->channel->hw_value;
 616         if (ch == 0) {
 617                 wil_err(wil, "BSS at unknown frequency %dMhz\n",
 618                         bss->channel->center_freq);
 619                 rc = -EOPNOTSUPP;
 620                 goto out;
 621         }
 622         conn.channel = ch - 1;
 623
 624         ether_addr_copy(conn.bssid, bss->bssid);
 625         ether_addr_copy(conn.dst_mac, bss->bssid);
 626
 627         set_bit(wil_status_fwconnecting, wil->status);
 628
 629         rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 630         if (rc == 0) {
 631                 netif_carrier_on(ndev);
 632                 /* Connect can take lots of time */
 633                 mod_timer(&wil->connect_timer,
 634                           jiffies + msecs_to_jiffies(2000));
 635         } else {
 636                 clear_bit(wil_status_fwconnecting, wil->status);
 637         }
 638
 639  out:
 640         cfg80211_put_bss(wiphy, bss);
 641
 642         return rc;
 643 }
 644
 645 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 646                                    struct net_device *ndev,
 647                                    u16 reason_code)
 648 {
 649         int rc;
 650         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 651
 652         wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
 653
 654         if (!(test_bit(wil_status_fwconnecting, wil->status) ||
 655               test_bit(wil_status_fwconnected, wil->status))) {
 656                 wil_err(wil, "%s: Disconnect was called while disconnected\n",
 657                         __func__);
 658                 return 0;
 659         }
 660
 661         rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
 662                       WMI_DISCONNECT_EVENTID, NULL, 0,
 663                       WIL6210_DISCONNECT_TO_MS);
 664         if (rc)
 665                 wil_err(wil, "%s: disconnect error %d\n", __func__, rc);
 666
 667         return rc;
 668 }
 669
 670 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 671                          struct cfg80211_mgmt_tx_params *params,
 672                          u64 *cookie)
 673 {
 674         const u8 *buf = params->buf;
 675         size_t len = params->len;
 676         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 677         int rc;
 678         bool tx_status = false;
 679         struct ieee80211_mgmt *mgmt_frame = (void *)buf;
 680         struct wmi_sw_tx_req_cmd *cmd;
 681         struct {
 682                 struct wmi_cmd_hdr wmi;
 683                 struct wmi_sw_tx_complete_event evt;
 684         } __packed evt;
 685
 686         /* Note, currently we do not support the "wait" parameter, user-space
 687          * must call remain_on_channel before mgmt_tx or listen on a channel
 688          * another way (AP/PCP or connected station)
 689          * in addition we need to check if specified "chan" argument is
 690          * different from currently "listened" channel and fail if it is.
 691          */
 692
 693         wil_dbg_misc(wil, "%s()\n", __func__);
 694         print_hex_dump_bytes("mgmt tx frame ", DUMP_PREFIX_OFFSET, buf, len);
 695
 696         cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
 697         if (!cmd) {
 698                 rc = -ENOMEM;
 699                 goto out;
 700         }
 701
 702         memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
 703         cmd->len = cpu_to_le16(len);
 704         memcpy(cmd->payload, buf, len);
 705
 706         rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
 707                       WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 708         if (rc == 0)
 709                 tx_status = !evt.evt.status;
 710
 711         kfree(cmd);
 712  out:
 713         cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 714                                 tx_status, GFP_KERNEL);
 715         return rc;
 716 }
 717
 718 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 719                                     struct cfg80211_chan_def *chandef)
 720 {
 721         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 722         struct wireless_dev *wdev = wil_to_wdev(wil);
 723
 724         wdev->preset_chandef = *chandef;
 725
 726         return 0;
 727 }
 728
 729 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
 730                                                bool pairwise)
 731 {
 732         struct wireless_dev *wdev = wil_to_wdev(wil);
 733         enum wmi_key_usage rc;
 734
 735         if (pairwise) {
 736                 rc = WMI_KEY_USE_PAIRWISE;
 737         } else {
 738                 switch (wdev->iftype) {
 739                 case NL80211_IFTYPE_STATION:
 740                 case NL80211_IFTYPE_P2P_CLIENT:
 741                         rc = WMI_KEY_USE_RX_GROUP;
 742                         break;
 743                 case NL80211_IFTYPE_AP:
 744                 case NL80211_IFTYPE_P2P_GO:
 745                         rc = WMI_KEY_USE_TX_GROUP;
 746                         break;
 747                 default:
 748                         /* TODO: Rx GTK or Tx GTK? */
 749                         wil_err(wil, "Can't determine GTK type\n");
 750                         rc = WMI_KEY_USE_RX_GROUP;
 751                         break;
 752                 }
 753         }
 754         wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
 755
 756         return rc;
 757 }
 758
 759 static struct wil_tid_crypto_rx_single *
 760 wil_find_crypto_ctx(struct wil6210_priv *wil, u8 key_index,
 761                     enum wmi_key_usage key_usage, const u8 *mac_addr)
 762 {
 763         int cid = -EINVAL;
 764         int tid = 0;
 765         struct wil_sta_info *s;
 766         struct wil_tid_crypto_rx *c;
 767
 768         if (key_usage == WMI_KEY_USE_TX_GROUP)
 769                 return NULL; /* not needed */
 770
 771         /* supplicant provides Rx group key in STA mode with NULL MAC address */
 772         if (mac_addr)
 773                 cid = wil_find_cid(wil, mac_addr);
 774         else if (key_usage == WMI_KEY_USE_RX_GROUP)
 775                 cid = wil_find_cid_by_idx(wil, 0);
 776         if (cid < 0) {
 777                 wil_err(wil, "No CID for %pM %s[%d]\n", mac_addr,
 778                         key_usage_str[key_usage], key_index);
 779                 return ERR_PTR(cid);
 780         }
 781
 782         s = &wil->sta[cid];
 783         if (key_usage == WMI_KEY_USE_PAIRWISE)
 784                 c = &s->tid_crypto_rx[tid];
 785         else
 786                 c = &s->group_crypto_rx;
 787
 788         return &c->key_id[key_index];
 789 }
 790
 791 static int wil_cfg80211_add_key(struct wiphy *wiphy,
 792                                 struct net_device *ndev,
 793                                 u8 key_index, bool pairwise,
 794                                 const u8 *mac_addr,
 795                                 struct key_params *params)
 796 {
 797         int rc;
 798         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 799         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 800         struct wil_tid_crypto_rx_single *cc = wil_find_crypto_ctx(wil,
 801                                                                   key_index,
 802                                                                   key_usage,
 803                                                                   mac_addr);
 804
 805         wil_dbg_misc(wil, "%s(%pM %s[%d] PN %*phN)\n", __func__,
 806                      mac_addr, key_usage_str[key_usage], key_index,
 807                      params->seq_len, params->seq);
 808
 809         if (IS_ERR(cc)) {
 810                 wil_err(wil, "Not connected, %s(%pM %s[%d] PN %*phN)\n",
 811                         __func__, mac_addr, key_usage_str[key_usage], key_index,
 812                         params->seq_len, params->seq);
 813                 return -EINVAL;
 814         }
 815
 816         if (cc)
 817                 cc->key_set = false;
 818
 819         if (params->seq && params->seq_len != IEEE80211_GCMP_PN_LEN) {
 820                 wil_err(wil,
 821                         "Wrong PN len %d, %s(%pM %s[%d] PN %*phN)\n",
 822                         params->seq_len, __func__, mac_addr,
 823                         key_usage_str[key_usage], key_index,
 824                         params->seq_len, params->seq);
 825                 return -EINVAL;
 826         }
 827
 828         rc = wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
 829                                 params->key, key_usage);
 830         if ((rc == 0) && cc) {
 831                 if (params->seq)
 832                         memcpy(cc->pn, params->seq, IEEE80211_GCMP_PN_LEN);
 833                 else
 834                         memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
 835                 cc->key_set = true;
 836         }
 837
 838         return rc;
 839 }
 840
 841 static int wil_cfg80211_del_key(struct wiphy *wiphy,
 842                                 struct net_device *ndev,
 843                                 u8 key_index, bool pairwise,
 844                                 const u8 *mac_addr)
 845 {
 846         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 847         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 848         struct wil_tid_crypto_rx_single *cc = wil_find_crypto_ctx(wil,
 849                                                                   key_index,
 850                                                                   key_usage,
 851                                                                   mac_addr);
 852
 853         wil_dbg_misc(wil, "%s(%pM %s[%d])\n", __func__, mac_addr,
 854                      key_usage_str[key_usage], key_index);
 855
 856         if (IS_ERR(cc))
 857                 wil_info(wil, "Not connected, %s(%pM %s[%d])\n", __func__,
 858                          mac_addr, key_usage_str[key_usage], key_index);
 859
 860         if (!IS_ERR_OR_NULL(cc))
 861                 cc->key_set = false;
 862
 863         return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
 864 }
 865
 866 /* Need to be present or wiphy_new() will WARN */
 867 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 868                                         struct net_device *ndev,
 869                                         u8 key_index, bool unicast,
 870                                         bool multicast)
 871 {
 872         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 873
 874         wil_dbg_misc(wil, "%s: entered\n", __func__);
 875         return 0;
 876 }
 877
 878 static int wil_remain_on_channel(struct wiphy *wiphy,
 879                                  struct wireless_dev *wdev,
 880                                  struct ieee80211_channel *chan,
 881                                  unsigned int duration,
 882                                  u64 *cookie)
 883 {
 884         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 885         int rc;
 886
 887         wil_dbg_misc(wil, "%s() center_freq=%d, duration=%d iftype=%d\n",
 888                      __func__, chan->center_freq, duration, wdev->iftype);
 889
 890         rc = wil_p2p_listen(wil, duration, chan, cookie);
 891         if (rc)
 892                 return rc;
 893
 894         wil->radio_wdev = wdev;
 895
 896         cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
 897                                   GFP_KERNEL);
 898
 899         return 0;
 900 }
 901
 902 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
 903                                         struct wireless_dev *wdev,
 904                                         u64 cookie)
 905 {
 906         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 907
 908         wil_dbg_misc(wil, "%s()\n", __func__);
 909
 910         return wil_p2p_cancel_listen(wil, cookie);
 911 }
 912
 913 /**
 914  * find a specific IE in a list of IEs
 915  * return a pointer to the beginning of IE in the list
 916  * or NULL if not found
 917  */
 918 static const u8 *_wil_cfg80211_find_ie(const u8 *ies, u16 ies_len, const u8 *ie,
 919                                        u16 ie_len)
 920 {
 921         struct ieee80211_vendor_ie *vie;
 922         u32 oui;
 923
 924         /* IE tag at offset 0, length at offset 1 */
 925         if (ie_len < 2 || 2 + ie[1] > ie_len)
 926                 return NULL;
 927
 928         if (ie[0] != WLAN_EID_VENDOR_SPECIFIC)
 929                 return cfg80211_find_ie(ie[0], ies, ies_len);
 930
 931         /* make sure there is room for 3 bytes OUI + 1 byte OUI type */
 932         if (ie[1] < 4)
 933                 return NULL;
 934         vie = (struct ieee80211_vendor_ie *)ie;
 935         oui = vie->oui[0] << 16 | vie->oui[1] << 8 | vie->oui[2];
 936         return cfg80211_find_vendor_ie(oui, vie->oui_type, ies,
 937                                        ies_len);
 938 }
 939
 940 /**
 941  * merge the IEs in two lists into a single list.
 942  * do not include IEs from the second list which exist in the first list.
 943  * add only vendor specific IEs from second list to keep
 944  * the merged list sorted (since vendor-specific IE has the
 945  * highest tag number)
 946  * caller must free the allocated memory for merged IEs
 947  */
 948 static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len,
 949                                          const u8 *ies2, u16 ies2_len,
 950                                          u8 **merged_ies, u16 *merged_len)
 951 {
 952         u8 *buf, *dpos;
 953         const u8 *spos;
 954
 955         if (ies1_len == 0 && ies2_len == 0) {
 956                 *merged_ies = NULL;
 957                 *merged_len = 0;
 958                 return 0;
 959         }
 960
 961         buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL);
 962         if (!buf)
 963                 return -ENOMEM;
 964         memcpy(buf, ies1, ies1_len);
 965         dpos = buf + ies1_len;
 966         spos = ies2;
 967         while (spos + 1 < ies2 + ies2_len) {
 968                 /* IE tag at offset 0, length at offset 1 */
 969                 u16 ielen = 2 + spos[1];
 970
 971                 if (spos + ielen > ies2 + ies2_len)
 972                         break;
 973                 if (spos[0] == WLAN_EID_VENDOR_SPECIFIC &&
 974                     !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) {
 975                         memcpy(dpos, spos, ielen);
 976                         dpos += ielen;
 977                 }
 978                 spos += ielen;
 979         }
 980
 981         *merged_ies = buf;
 982         *merged_len = dpos - buf;
 983         return 0;
 984 }
 985
 986 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
 987 {
 988         print_hex_dump_bytes("head     ", DUMP_PREFIX_OFFSET,
 989                              b->head, b->head_len);
 990         print_hex_dump_bytes("tail     ", DUMP_PREFIX_OFFSET,
 991                              b->tail, b->tail_len);
 992         print_hex_dump_bytes("BCON IE  ", DUMP_PREFIX_OFFSET,
 993                              b->beacon_ies, b->beacon_ies_len);
 994         print_hex_dump_bytes("PROBE    ", DUMP_PREFIX_OFFSET,
 995                              b->probe_resp, b->probe_resp_len);
 996         print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
 997                              b->proberesp_ies, b->proberesp_ies_len);
 998         print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
 999                              b->assocresp_ies, b->assocresp_ies_len);
1000 }
1001
1002 /* internal functions for device reset and starting AP */
1003 static int _wil_cfg80211_set_ies(struct wiphy *wiphy,
1004                                  struct cfg80211_beacon_data *bcon)
1005 {
1006         int rc;
1007         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1008         u16 len = 0, proberesp_len = 0;
1009         u8 *ies = NULL, *proberesp = NULL;
1010
1011         if (bcon->probe_resp) {
1012                 struct ieee80211_mgmt *f =
1013                         (struct ieee80211_mgmt *)bcon->probe_resp;
1014                 size_t hlen = offsetof(struct ieee80211_mgmt,
1015                                        u.probe_resp.variable);
1016                 proberesp = f->u.probe_resp.variable;
1017                 proberesp_len = bcon->probe_resp_len - hlen;
1018         }
1019         rc = _wil_cfg80211_merge_extra_ies(proberesp,
1020                                            proberesp_len,
1021                                            bcon->proberesp_ies,
1022                                            bcon->proberesp_ies_len,
1023                                            &ies, &len);
1024
1025         if (rc)
1026                 goto out;
1027
1028         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, len, ies);
1029         if (rc)
1030                 goto out;
1031
1032         if (bcon->assocresp_ies)
1033                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
1034                                 bcon->assocresp_ies_len, bcon->assocresp_ies);
1035         else
1036                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, len, ies);
1037 #if 0 /* to use beacon IE's, remove this #if 0 */
1038         if (rc)
1039                 goto out;
1040
1041         rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail);
1042 #endif
1043 out:
1044         kfree(ies);
1045         return rc;
1046 }
1047
1048 static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
1049                                   struct net_device *ndev,
1050                                   const u8 *ssid, size_t ssid_len, u32 privacy,
1051                                   int bi, u8 chan,
1052                                   struct cfg80211_beacon_data *bcon,
1053                                   u8 hidden_ssid, u32 pbss)
1054 {
1055         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1056         int rc;
1057         struct wireless_dev *wdev = ndev->ieee80211_ptr;
1058         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
1059         u8 is_go = (wdev->iftype == NL80211_IFTYPE_P2P_GO);
1060
1061         if (pbss)
1062                 wmi_nettype = WMI_NETTYPE_P2P;
1063
1064         wil_dbg_misc(wil, "%s: is_go=%d\n", __func__, is_go);
1065         if (is_go && !pbss) {
1066                 wil_err(wil, "%s: P2P GO must be in PBSS\n", __func__);
1067                 return -ENOTSUPP;
1068         }
1069
1070         wil_set_recovery_state(wil, fw_recovery_idle);
1071
1072         mutex_lock(&wil->mutex);
1073
1074         __wil_down(wil);
1075         rc = __wil_up(wil);
1076         if (rc)
1077                 goto out;
1078
1079         rc = wmi_set_ssid(wil, ssid_len, ssid);
1080         if (rc)
1081                 goto out;
1082
1083         rc = _wil_cfg80211_set_ies(wiphy, bcon);
1084         if (rc)
1085                 goto out;
1086
1087         wil->privacy = privacy;
1088         wil->channel = chan;
1089         wil->hidden_ssid = hidden_ssid;
1090         wil->pbss = pbss;
1091
1092         netif_carrier_on(ndev);
1093
1094         rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid, is_go);
1095         if (rc)
1096                 goto err_pcp_start;
1097
1098         rc = wil_bcast_init(wil);
1099         if (rc)
1100                 goto err_bcast;
1101
1102         goto out; /* success */
1103
1104 err_bcast:
1105         wmi_pcp_stop(wil);
1106 err_pcp_start:
1107         netif_carrier_off(ndev);
1108 out:
1109         mutex_unlock(&wil->mutex);
1110         return rc;
1111 }
1112
1113 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
1114                                       struct net_device *ndev,
1115                                       struct cfg80211_beacon_data *bcon)
1116 {
1117         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1118         int rc;
1119         u32 privacy = 0;
1120
1121         wil_dbg_misc(wil, "%s()\n", __func__);
1122         wil_print_bcon_data(bcon);
1123
1124         if (bcon->tail &&
1125             cfg80211_find_ie(WLAN_EID_RSN, bcon->tail,
1126                              bcon->tail_len))
1127                 privacy = 1;
1128
1129         /* in case privacy has changed, need to restart the AP */
1130         if (wil->privacy != privacy) {
1131                 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1132
1133                 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
1134                              wil->privacy, privacy);
1135
1136                 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
1137                                             wdev->ssid_len, privacy,
1138                                             wdev->beacon_interval,
1139                                             wil->channel, bcon,
1140                                             wil->hidden_ssid,
1141                                             wil->pbss);
1142         } else {
1143                 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1144         }
1145
1146         return rc;
1147 }
1148
1149 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
1150                                  struct net_device *ndev,
1151                                  struct cfg80211_ap_settings *info)
1152 {
1153         int rc;
1154         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1155         struct ieee80211_channel *channel = info->chandef.chan;
1156         struct cfg80211_beacon_data *bcon = &info->beacon;
1157         struct cfg80211_crypto_settings *crypto = &info->crypto;
1158         u8 hidden_ssid;
1159
1160         wil_dbg_misc(wil, "%s()\n", __func__);
1161
1162         if (!channel) {
1163                 wil_err(wil, "AP: No channel???\n");
1164                 return -EINVAL;
1165         }
1166
1167         switch (info->hidden_ssid) {
1168         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1169                 hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
1170                 break;
1171
1172         case NL80211_HIDDEN_SSID_ZERO_LEN:
1173                 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
1174                 break;
1175
1176         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1177                 hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
1178                 break;
1179
1180         default:
1181                 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid);
1182                 return -EOPNOTSUPP;
1183         }
1184         wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
1185                      channel->center_freq, info->privacy ? "secure" : "open");
1186         wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
1187                      info->privacy, info->auth_type);
1188         wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
1189                      info->hidden_ssid);
1190         wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
1191                      info->dtim_period);
1192         wil_dbg_misc(wil, "PBSS %d\n", info->pbss);
1193         print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
1194                              info->ssid, info->ssid_len);
1195         wil_print_bcon_data(bcon);
1196         wil_print_crypto(wil, crypto);
1197
1198         rc = _wil_cfg80211_start_ap(wiphy, ndev,
1199                                     info->ssid, info->ssid_len, info->privacy,
1200                                     info->beacon_interval, channel->hw_value,
1201                                     bcon, hidden_ssid, info->pbss);
1202
1203         return rc;
1204 }
1205
1206 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
1207                                 struct net_device *ndev)
1208 {
1209         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1210
1211         wil_dbg_misc(wil, "%s()\n", __func__);
1212
1213         netif_carrier_off(ndev);
1214         wil_set_recovery_state(wil, fw_recovery_idle);
1215
1216         mutex_lock(&wil->mutex);
1217
1218         wmi_pcp_stop(wil);
1219
1220         __wil_down(wil);
1221
1222         mutex_unlock(&wil->mutex);
1223
1224         return 0;
1225 }
1226
1227 static int wil_cfg80211_del_station(struct wiphy *wiphy,
1228                                     struct net_device *dev,
1229                                     struct station_del_parameters *params)
1230 {
1231         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1232
1233         wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
1234                      params->reason_code);
1235
1236         mutex_lock(&wil->mutex);
1237         wil6210_disconnect(wil, params->mac, params->reason_code, false);
1238         mutex_unlock(&wil->mutex);
1239
1240         return 0;
1241 }
1242
1243 /* probe_client handling */
1244 static void wil_probe_client_handle(struct wil6210_priv *wil,
1245                                     struct wil_probe_client_req *req)
1246 {
1247         struct net_device *ndev = wil_to_ndev(wil);
1248         struct wil_sta_info *sta = &wil->sta[req->cid];
1249         /* assume STA is alive if it is still connected,
1250          * else FW will disconnect it
1251          */
1252         bool alive = (sta->status == wil_sta_connected);
1253
1254         cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
1255 }
1256
1257 static struct list_head *next_probe_client(struct wil6210_priv *wil)
1258 {
1259         struct list_head *ret = NULL;
1260
1261         mutex_lock(&wil->probe_client_mutex);
1262
1263         if (!list_empty(&wil->probe_client_pending)) {
1264                 ret = wil->probe_client_pending.next;
1265                 list_del(ret);
1266         }
1267
1268         mutex_unlock(&wil->probe_client_mutex);
1269
1270         return ret;
1271 }
1272
1273 void wil_probe_client_worker(struct work_struct *work)
1274 {
1275         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1276                                                 probe_client_worker);
1277         struct wil_probe_client_req *req;
1278         struct list_head *lh;
1279
1280         while ((lh = next_probe_client(wil)) != NULL) {
1281                 req = list_entry(lh, struct wil_probe_client_req, list);
1282
1283                 wil_probe_client_handle(wil, req);
1284                 kfree(req);
1285         }
1286 }
1287
1288 void wil_probe_client_flush(struct wil6210_priv *wil)
1289 {
1290         struct wil_probe_client_req *req, *t;
1291
1292         wil_dbg_misc(wil, "%s()\n", __func__);
1293
1294         mutex_lock(&wil->probe_client_mutex);
1295
1296         list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
1297                 list_del(&req->list);
1298                 kfree(req);
1299         }
1300
1301         mutex_unlock(&wil->probe_client_mutex);
1302 }
1303
1304 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
1305                                      struct net_device *dev,
1306                                      const u8 *peer, u64 *cookie)
1307 {
1308         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1309         struct wil_probe_client_req *req;
1310         int cid = wil_find_cid(wil, peer);
1311
1312         wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1313
1314         if (cid < 0)
1315                 return -ENOLINK;
1316
1317         req = kzalloc(sizeof(*req), GFP_KERNEL);
1318         if (!req)
1319                 return -ENOMEM;
1320
1321         req->cid = cid;
1322         req->cookie = cid;
1323
1324         mutex_lock(&wil->probe_client_mutex);
1325         list_add_tail(&req->list, &wil->probe_client_pending);
1326         mutex_unlock(&wil->probe_client_mutex);
1327
1328         *cookie = req->cookie;
1329         queue_work(wil->wq_service, &wil->probe_client_worker);
1330         return 0;
1331 }
1332
1333 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1334                                    struct net_device *dev,
1335                                    struct bss_parameters *params)
1336 {
1337         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1338
1339         if (params->ap_isolate >= 0) {
1340                 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1341                              wil->ap_isolate, params->ap_isolate);
1342                 wil->ap_isolate = params->ap_isolate;
1343         }
1344
1345         return 0;
1346 }
1347
1348 static int wil_cfg80211_start_p2p_device(struct wiphy *wiphy,
1349                                          struct wireless_dev *wdev)
1350 {
1351         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1352
1353         wil_dbg_misc(wil, "%s: entered\n", __func__);
1354         return 0;
1355 }
1356
1357 static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy,
1358                                          struct wireless_dev *wdev)
1359 {
1360         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1361
1362         wil_dbg_misc(wil, "%s: entered\n", __func__);
1363 }
1364
1365 static struct cfg80211_ops wil_cfg80211_ops = {
1366         .add_virtual_intf = wil_cfg80211_add_iface,
1367         .del_virtual_intf = wil_cfg80211_del_iface,
1368         .scan = wil_cfg80211_scan,
1369         .connect = wil_cfg80211_connect,
1370         .disconnect = wil_cfg80211_disconnect,
1371         .change_virtual_intf = wil_cfg80211_change_iface,
1372         .get_station = wil_cfg80211_get_station,
1373         .dump_station = wil_cfg80211_dump_station,
1374         .remain_on_channel = wil_remain_on_channel,
1375         .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1376         .mgmt_tx = wil_cfg80211_mgmt_tx,
1377         .set_monitor_channel = wil_cfg80211_set_channel,
1378         .add_key = wil_cfg80211_add_key,
1379         .del_key = wil_cfg80211_del_key,
1380         .set_default_key = wil_cfg80211_set_default_key,
1381         /* AP mode */
1382         .change_beacon = wil_cfg80211_change_beacon,
1383         .start_ap = wil_cfg80211_start_ap,
1384         .stop_ap = wil_cfg80211_stop_ap,
1385         .del_station = wil_cfg80211_del_station,
1386         .probe_client = wil_cfg80211_probe_client,
1387         .change_bss = wil_cfg80211_change_bss,
1388         /* P2P device */
1389         .start_p2p_device = wil_cfg80211_start_p2p_device,
1390         .stop_p2p_device = wil_cfg80211_stop_p2p_device,
1391 };
1392
1393 static void wil_wiphy_init(struct wiphy *wiphy)
1394 {
1395         wiphy->max_scan_ssids = 1;
1396         wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1397         wiphy->max_remain_on_channel_duration = WIL_MAX_ROC_DURATION_MS;
1398         wiphy->max_num_pmkids = 0 /* TODO: */;
1399         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1400                                  BIT(NL80211_IFTYPE_AP) |
1401                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
1402                                  BIT(NL80211_IFTYPE_P2P_GO) |
1403                                  BIT(NL80211_IFTYPE_P2P_DEVICE) |
1404                                  BIT(NL80211_IFTYPE_MONITOR);
1405         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1406                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1407                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1408         dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1409                 __func__, wiphy->flags);
1410         wiphy->probe_resp_offload =
1411                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1412                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1413                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1414
1415         wiphy->bands[NL80211_BAND_60GHZ] = &wil_band_60ghz;
1416
1417         /* TODO: figure this out */
1418         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1419
1420         wiphy->cipher_suites = wil_cipher_suites;
1421         wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1422         wiphy->mgmt_stypes = wil_mgmt_stypes;
1423         wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1424 }
1425
1426 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1427 {
1428         int rc = 0;
1429         struct wireless_dev *wdev;
1430
1431         dev_dbg(dev, "%s()\n", __func__);
1432
1433         wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1434         if (!wdev)
1435                 return ERR_PTR(-ENOMEM);
1436
1437         wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1438                                 sizeof(struct wil6210_priv));
1439         if (!wdev->wiphy) {
1440                 rc = -ENOMEM;
1441                 goto out;
1442         }
1443
1444         set_wiphy_dev(wdev->wiphy, dev);
1445         wil_wiphy_init(wdev->wiphy);
1446
1447         rc = wiphy_register(wdev->wiphy);
1448         if (rc < 0)
1449                 goto out_failed_reg;
1450
1451         return wdev;
1452
1453 out_failed_reg:
1454         wiphy_free(wdev->wiphy);
1455 out:
1456         kfree(wdev);
1457
1458         return ERR_PTR(rc);
1459 }
1460
1461 void wil_wdev_free(struct wil6210_priv *wil)
1462 {
1463         struct wireless_dev *wdev = wil_to_wdev(wil);
1464
1465         dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1466
1467         if (!wdev)
1468                 return;
1469
1470         wiphy_unregister(wdev->wiphy);
1471         wiphy_free(wdev->wiphy);
1472         kfree(wdev);
1473 }
1474
1475 void wil_p2p_wdev_free(struct wil6210_priv *wil)
1476 {
1477         struct wireless_dev *p2p_wdev;
1478
1479         mutex_lock(&wil->p2p_wdev_mutex);
1480         p2p_wdev = wil->p2p_wdev;
1481         if (p2p_wdev) {
1482                 wil->p2p_wdev = NULL;
1483                 wil->radio_wdev = wil_to_wdev(wil);
1484                 cfg80211_unregister_wdev(p2p_wdev);
1485                 kfree(p2p_wdev);
1486         }
1487         mutex_unlock(&wil->p2p_wdev_mutex);
1488 }