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         mutex_lock(&wil->p2p_wdev_mutex);
 358         if (wil->scan_request) {
 359                 wil_err(wil, "Already scanning\n");
 360                 mutex_unlock(&wil->p2p_wdev_mutex);
 361                 return -EAGAIN;
 362         }
 363         mutex_unlock(&wil->p2p_wdev_mutex);
 364
 365         /* check we are client side */
 366         switch (wdev->iftype) {
 367         case NL80211_IFTYPE_STATION:
 368         case NL80211_IFTYPE_P2P_CLIENT:
 369         case NL80211_IFTYPE_P2P_DEVICE:
 370                 break;
 371         default:
 372                 return -EOPNOTSUPP;
 373         }
 374
 375         /* FW don't support scan after connection attempt */
 376         if (test_bit(wil_status_dontscan, wil->status)) {
 377                 wil_err(wil, "Can't scan now\n");
 378                 return -EBUSY;
 379         }
 380
 381         /* social scan on P2P_DEVICE is handled as p2p search */
 382         if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
 383             wil_p2p_is_social_scan(request)) {
 384                 if (!wil->p2p.p2p_dev_started) {
 385                         wil_err(wil, "P2P search requested on stopped P2P device\n");
 386                         return -EIO;
 387                 }
 388                 wil->scan_request = request;
 389                 wil->radio_wdev = wdev;
 390                 rc = wil_p2p_search(wil, request);
 391                 if (rc) {
 392                         wil->radio_wdev = wil_to_wdev(wil);
 393                         wil->scan_request = NULL;
 394                 }
 395                 return rc;
 396         }
 397
 398         (void)wil_p2p_stop_discovery(wil);
 399
 400         wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
 401         wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
 402
 403         for (i = 0; i < request->n_ssids; i++) {
 404                 wil_dbg_misc(wil, "SSID[%d]", i);
 405                 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 406                                      request->ssids[i].ssid,
 407                                      request->ssids[i].ssid_len);
 408         }
 409
 410         if (request->n_ssids)
 411                 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
 412                                   request->ssids[0].ssid);
 413         else
 414                 rc = wmi_set_ssid(wil, 0, NULL);
 415
 416         if (rc) {
 417                 wil_err(wil, "set SSID for scan request failed: %d\n", rc);
 418                 return rc;
 419         }
 420
 421         wil->scan_request = request;
 422         mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 423
 424         memset(&cmd, 0, sizeof(cmd));
 425         cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
 426         cmd.cmd.num_channels = 0;
 427         n = min(request->n_channels, 4U);
 428         for (i = 0; i < n; i++) {
 429                 int ch = request->channels[i]->hw_value;
 430
 431                 if (ch == 0) {
 432                         wil_err(wil,
 433                                 "Scan requested for unknown frequency %dMhz\n",
 434                                 request->channels[i]->center_freq);
 435                         continue;
 436                 }
 437                 /* 0-based channel indexes */
 438                 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 439                 wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 440                              request->channels[i]->center_freq);
 441         }
 442
 443         if (request->ie_len)
 444                 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
 445                                      request->ie, request->ie_len);
 446         else
 447                 wil_dbg_misc(wil, "Scan has no IE's\n");
 448
 449         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie);
 450         if (rc)
 451                 goto out;
 452
 453         if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
 454                 cmd.cmd.discovery_mode = 1;
 455                 wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
 456         }
 457
 458         wil->radio_wdev = wdev;
 459         rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 460                         cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 461
 462 out:
 463         if (rc) {
 464                 del_timer_sync(&wil->scan_timer);
 465                 wil->radio_wdev = wil_to_wdev(wil);
 466                 wil->scan_request = NULL;
 467         }
 468
 469         return rc;
 470 }
 471
 472 static void wil_print_crypto(struct wil6210_priv *wil,
 473                              struct cfg80211_crypto_settings *c)
 474 {
 475         int i, n;
 476
 477         wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
 478                      c->wpa_versions, c->cipher_group);
 479         wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
 480         n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
 481         for (i = 0; i < n; i++)
 482                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 483                              c->ciphers_pairwise[i]);
 484         wil_dbg_misc(wil, "}\n");
 485         wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
 486         n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
 487         for (i = 0; i < n; i++)
 488                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 489                              c->akm_suites[i]);
 490         wil_dbg_misc(wil, "}\n");
 491         wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
 492                      c->control_port, be16_to_cpu(c->control_port_ethertype),
 493                      c->control_port_no_encrypt);
 494 }
 495
 496 static void wil_print_connect_params(struct wil6210_priv *wil,
 497                                      struct cfg80211_connect_params *sme)
 498 {
 499         wil_info(wil, "Connecting to:\n");
 500         if (sme->channel) {
 501                 wil_info(wil, "  Channel: %d freq %d\n",
 502                          sme->channel->hw_value, sme->channel->center_freq);
 503         }
 504         if (sme->bssid)
 505                 wil_info(wil, "  BSSID: %pM\n", sme->bssid);
 506         if (sme->ssid)
 507                 print_hex_dump(KERN_INFO, "  SSID: ", DUMP_PREFIX_OFFSET,
 508                                16, 1, sme->ssid, sme->ssid_len, true);
 509         wil_info(wil, "  Privacy: %s\n", sme->privacy ? "secure" : "open");
 510         wil_info(wil, "  PBSS: %d\n", sme->pbss);
 511         wil_print_crypto(wil, &sme->crypto);
 512 }
 513
 514 static int wil_cfg80211_connect(struct wiphy *wiphy,
 515                                 struct net_device *ndev,
 516                                 struct cfg80211_connect_params *sme)
 517 {
 518         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 519         struct cfg80211_bss *bss;
 520         struct wmi_connect_cmd conn;
 521         const u8 *ssid_eid;
 522         const u8 *rsn_eid;
 523         int ch;
 524         int rc = 0;
 525         enum ieee80211_bss_type bss_type = IEEE80211_BSS_TYPE_ESS;
 526
 527         wil_dbg_misc(wil, "%s()\n", __func__);
 528         wil_print_connect_params(wil, sme);
 529
 530         if (test_bit(wil_status_fwconnecting, wil->status) ||
 531             test_bit(wil_status_fwconnected, wil->status))
 532                 return -EALREADY;
 533
 534         if (sme->ie_len > WMI_MAX_IE_LEN) {
 535                 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
 536                 return -ERANGE;
 537         }
 538
 539         rsn_eid = sme->ie ?
 540                         cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 541                         NULL;
 542         if (sme->privacy && !rsn_eid)
 543                 wil_info(wil, "WSC connection\n");
 544
 545         if (sme->pbss)
 546                 bss_type = IEEE80211_BSS_TYPE_PBSS;
 547
 548         bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 549                                sme->ssid, sme->ssid_len,
 550                                bss_type, IEEE80211_PRIVACY_ANY);
 551         if (!bss) {
 552                 wil_err(wil, "Unable to find BSS\n");
 553                 return -ENOENT;
 554         }
 555
 556         ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 557         if (!ssid_eid) {
 558                 wil_err(wil, "No SSID\n");
 559                 rc = -ENOENT;
 560                 goto out;
 561         }
 562         wil->privacy = sme->privacy;
 563
 564         if (wil->privacy) {
 565                 /* For secure assoc, remove old keys */
 566                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 567                                         WMI_KEY_USE_PAIRWISE);
 568                 if (rc) {
 569                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
 570                         goto out;
 571                 }
 572                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 573                                         WMI_KEY_USE_RX_GROUP);
 574                 if (rc) {
 575                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
 576                         goto out;
 577                 }
 578         }
 579
 580         /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
 581          * elements. Send it also in case it's empty, to erase previously set
 582          * ies in FW.
 583          */
 584         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 585         if (rc)
 586                 goto out;
 587
 588         /* WMI_CONNECT_CMD */
 589         memset(&conn, 0, sizeof(conn));
 590         switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
 591         case WLAN_CAPABILITY_DMG_TYPE_AP:
 592                 conn.network_type = WMI_NETTYPE_INFRA;
 593                 break;
 594         case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 595                 conn.network_type = WMI_NETTYPE_P2P;
 596                 break;
 597         default:
 598                 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 599                         bss->capability);
 600                 goto out;
 601         }
 602         if (wil->privacy) {
 603                 if (rsn_eid) { /* regular secure connection */
 604                         conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 605                         conn.auth_mode = WMI_AUTH_WPA2_PSK;
 606                         conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 607                         conn.pairwise_crypto_len = 16;
 608                         conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
 609                         conn.group_crypto_len = 16;
 610                 } else { /* WSC */
 611                         conn.dot11_auth_mode = WMI_AUTH11_WSC;
 612                         conn.auth_mode = WMI_AUTH_NONE;
 613                 }
 614         } else { /* insecure connection */
 615                 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 616                 conn.auth_mode = WMI_AUTH_NONE;
 617         }
 618
 619         conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 620         memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 621
 622         ch = bss->channel->hw_value;
 623         if (ch == 0) {
 624                 wil_err(wil, "BSS at unknown frequency %dMhz\n",
 625                         bss->channel->center_freq);
 626                 rc = -EOPNOTSUPP;
 627                 goto out;
 628         }
 629         conn.channel = ch - 1;
 630
 631         ether_addr_copy(conn.bssid, bss->bssid);
 632         ether_addr_copy(conn.dst_mac, bss->bssid);
 633
 634         set_bit(wil_status_fwconnecting, wil->status);
 635
 636         rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 637         if (rc == 0) {
 638                 netif_carrier_on(ndev);
 639                 /* Connect can take lots of time */
 640                 mod_timer(&wil->connect_timer,
 641                           jiffies + msecs_to_jiffies(2000));
 642         } else {
 643                 clear_bit(wil_status_fwconnecting, wil->status);
 644         }
 645
 646  out:
 647         cfg80211_put_bss(wiphy, bss);
 648
 649         return rc;
 650 }
 651
 652 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 653                                    struct net_device *ndev,
 654                                    u16 reason_code)
 655 {
 656         int rc;
 657         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 658
 659         wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
 660
 661         if (!(test_bit(wil_status_fwconnecting, wil->status) ||
 662               test_bit(wil_status_fwconnected, wil->status))) {
 663                 wil_err(wil, "%s: Disconnect was called while disconnected\n",
 664                         __func__);
 665                 return 0;
 666         }
 667
 668         rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
 669                       WMI_DISCONNECT_EVENTID, NULL, 0,
 670                       WIL6210_DISCONNECT_TO_MS);
 671         if (rc)
 672                 wil_err(wil, "%s: disconnect error %d\n", __func__, rc);
 673
 674         return rc;
 675 }
 676
 677 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 678                          struct cfg80211_mgmt_tx_params *params,
 679                          u64 *cookie)
 680 {
 681         const u8 *buf = params->buf;
 682         size_t len = params->len;
 683         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 684         int rc;
 685         bool tx_status = false;
 686         struct ieee80211_mgmt *mgmt_frame = (void *)buf;
 687         struct wmi_sw_tx_req_cmd *cmd;
 688         struct {
 689                 struct wmi_cmd_hdr wmi;
 690                 struct wmi_sw_tx_complete_event evt;
 691         } __packed evt;
 692
 693         /* Note, currently we do not support the "wait" parameter, user-space
 694          * must call remain_on_channel before mgmt_tx or listen on a channel
 695          * another way (AP/PCP or connected station)
 696          * in addition we need to check if specified "chan" argument is
 697          * different from currently "listened" channel and fail if it is.
 698          */
 699
 700         wil_dbg_misc(wil, "%s()\n", __func__);
 701         print_hex_dump_bytes("mgmt tx frame ", DUMP_PREFIX_OFFSET, buf, len);
 702
 703         cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
 704         if (!cmd) {
 705                 rc = -ENOMEM;
 706                 goto out;
 707         }
 708
 709         memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
 710         cmd->len = cpu_to_le16(len);
 711         memcpy(cmd->payload, buf, len);
 712
 713         rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
 714                       WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 715         if (rc == 0)
 716                 tx_status = !evt.evt.status;
 717
 718         kfree(cmd);
 719  out:
 720         cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 721                                 tx_status, GFP_KERNEL);
 722         return rc;
 723 }
 724
 725 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 726                                     struct cfg80211_chan_def *chandef)
 727 {
 728         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 729         struct wireless_dev *wdev = wil_to_wdev(wil);
 730
 731         wdev->preset_chandef = *chandef;
 732
 733         return 0;
 734 }
 735
 736 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
 737                                                bool pairwise)
 738 {
 739         struct wireless_dev *wdev = wil_to_wdev(wil);
 740         enum wmi_key_usage rc;
 741
 742         if (pairwise) {
 743                 rc = WMI_KEY_USE_PAIRWISE;
 744         } else {
 745                 switch (wdev->iftype) {
 746                 case NL80211_IFTYPE_STATION:
 747                 case NL80211_IFTYPE_P2P_CLIENT:
 748                         rc = WMI_KEY_USE_RX_GROUP;
 749                         break;
 750                 case NL80211_IFTYPE_AP:
 751                 case NL80211_IFTYPE_P2P_GO:
 752                         rc = WMI_KEY_USE_TX_GROUP;
 753                         break;
 754                 default:
 755                         /* TODO: Rx GTK or Tx GTK? */
 756                         wil_err(wil, "Can't determine GTK type\n");
 757                         rc = WMI_KEY_USE_RX_GROUP;
 758                         break;
 759                 }
 760         }
 761         wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
 762
 763         return rc;
 764 }
 765
 766 static struct wil_sta_info *
 767 wil_find_sta_by_key_usage(struct wil6210_priv *wil,
 768                           enum wmi_key_usage key_usage, const u8 *mac_addr)
 769 {
 770         int cid = -EINVAL;
 771
 772         if (key_usage == WMI_KEY_USE_TX_GROUP)
 773                 return NULL; /* not needed */
 774
 775         /* supplicant provides Rx group key in STA mode with NULL MAC address */
 776         if (mac_addr)
 777                 cid = wil_find_cid(wil, mac_addr);
 778         else if (key_usage == WMI_KEY_USE_RX_GROUP)
 779                 cid = wil_find_cid_by_idx(wil, 0);
 780         if (cid < 0) {
 781                 wil_err(wil, "No CID for %pM %s\n", mac_addr,
 782                         key_usage_str[key_usage]);
 783                 return ERR_PTR(cid);
 784         }
 785
 786         return &wil->sta[cid];
 787 }
 788
 789 static void wil_set_crypto_rx(u8 key_index, enum wmi_key_usage key_usage,
 790                               struct wil_sta_info *cs,
 791                               struct key_params *params)
 792 {
 793         struct wil_tid_crypto_rx_single *cc;
 794         int tid;
 795
 796         if (!cs)
 797                 return;
 798
 799         switch (key_usage) {
 800         case WMI_KEY_USE_PAIRWISE:
 801                 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
 802                         cc = &cs->tid_crypto_rx[tid].key_id[key_index];
 803                         if (params->seq)
 804                                 memcpy(cc->pn, params->seq,
 805                                        IEEE80211_GCMP_PN_LEN);
 806                         else
 807                                 memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
 808                         cc->key_set = true;
 809                 }
 810                 break;
 811         case WMI_KEY_USE_RX_GROUP:
 812                 cc = &cs->group_crypto_rx.key_id[key_index];
 813                 if (params->seq)
 814                         memcpy(cc->pn, params->seq, IEEE80211_GCMP_PN_LEN);
 815                 else
 816                         memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
 817                 cc->key_set = true;
 818                 break;
 819         default:
 820                 break;
 821         }
 822 }
 823
 824 static void wil_del_rx_key(u8 key_index, enum wmi_key_usage key_usage,
 825                            struct wil_sta_info *cs)
 826 {
 827         struct wil_tid_crypto_rx_single *cc;
 828         int tid;
 829
 830         if (!cs)
 831                 return;
 832
 833         switch (key_usage) {
 834         case WMI_KEY_USE_PAIRWISE:
 835                 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
 836                         cc = &cs->tid_crypto_rx[tid].key_id[key_index];
 837                         cc->key_set = false;
 838                 }
 839                 break;
 840         case WMI_KEY_USE_RX_GROUP:
 841                 cc = &cs->group_crypto_rx.key_id[key_index];
 842                 cc->key_set = false;
 843                 break;
 844         default:
 845                 break;
 846         }
 847 }
 848
 849 static int wil_cfg80211_add_key(struct wiphy *wiphy,
 850                                 struct net_device *ndev,
 851                                 u8 key_index, bool pairwise,
 852                                 const u8 *mac_addr,
 853                                 struct key_params *params)
 854 {
 855         int rc;
 856         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 857         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 858         struct wil_sta_info *cs = wil_find_sta_by_key_usage(wil, key_usage,
 859                                                             mac_addr);
 860
 861         if (!params) {
 862                 wil_err(wil, "NULL params\n");
 863                 return -EINVAL;
 864         }
 865
 866         wil_dbg_misc(wil, "%s(%pM %s[%d] PN %*phN)\n", __func__,
 867                      mac_addr, key_usage_str[key_usage], key_index,
 868                      params->seq_len, params->seq);
 869
 870         if (IS_ERR(cs)) {
 871                 wil_err(wil, "Not connected, %s(%pM %s[%d] PN %*phN)\n",
 872                         __func__, mac_addr, key_usage_str[key_usage], key_index,
 873                         params->seq_len, params->seq);
 874                 return -EINVAL;
 875         }
 876
 877         wil_del_rx_key(key_index, key_usage, cs);
 878
 879         if (params->seq && params->seq_len != IEEE80211_GCMP_PN_LEN) {
 880                 wil_err(wil,
 881                         "Wrong PN len %d, %s(%pM %s[%d] PN %*phN)\n",
 882                         params->seq_len, __func__, mac_addr,
 883                         key_usage_str[key_usage], key_index,
 884                         params->seq_len, params->seq);
 885                 return -EINVAL;
 886         }
 887
 888         rc = wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
 889                                 params->key, key_usage);
 890         if (!rc)
 891                 wil_set_crypto_rx(key_index, key_usage, cs, params);
 892
 893         return rc;
 894 }
 895
 896 static int wil_cfg80211_del_key(struct wiphy *wiphy,
 897                                 struct net_device *ndev,
 898                                 u8 key_index, bool pairwise,
 899                                 const u8 *mac_addr)
 900 {
 901         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 902         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 903         struct wil_sta_info *cs = wil_find_sta_by_key_usage(wil, key_usage,
 904                                                             mac_addr);
 905
 906         wil_dbg_misc(wil, "%s(%pM %s[%d])\n", __func__, mac_addr,
 907                      key_usage_str[key_usage], key_index);
 908
 909         if (IS_ERR(cs))
 910                 wil_info(wil, "Not connected, %s(%pM %s[%d])\n", __func__,
 911                          mac_addr, key_usage_str[key_usage], key_index);
 912
 913         if (!IS_ERR_OR_NULL(cs))
 914                 wil_del_rx_key(key_index, key_usage, cs);
 915
 916         return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
 917 }
 918
 919 /* Need to be present or wiphy_new() will WARN */
 920 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 921                                         struct net_device *ndev,
 922                                         u8 key_index, bool unicast,
 923                                         bool multicast)
 924 {
 925         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 926
 927         wil_dbg_misc(wil, "%s: entered\n", __func__);
 928         return 0;
 929 }
 930
 931 static int wil_remain_on_channel(struct wiphy *wiphy,
 932                                  struct wireless_dev *wdev,
 933                                  struct ieee80211_channel *chan,
 934                                  unsigned int duration,
 935                                  u64 *cookie)
 936 {
 937         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 938         int rc;
 939
 940         wil_dbg_misc(wil, "%s() center_freq=%d, duration=%d iftype=%d\n",
 941                      __func__, chan->center_freq, duration, wdev->iftype);
 942
 943         rc = wil_p2p_listen(wil, duration, chan, cookie);
 944         if (rc)
 945                 return rc;
 946
 947         wil->radio_wdev = wdev;
 948
 949         cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
 950                                   GFP_KERNEL);
 951
 952         return 0;
 953 }
 954
 955 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
 956                                         struct wireless_dev *wdev,
 957                                         u64 cookie)
 958 {
 959         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 960
 961         wil_dbg_misc(wil, "%s()\n", __func__);
 962
 963         return wil_p2p_cancel_listen(wil, cookie);
 964 }
 965
 966 /**
 967  * find a specific IE in a list of IEs
 968  * return a pointer to the beginning of IE in the list
 969  * or NULL if not found
 970  */
 971 static const u8 *_wil_cfg80211_find_ie(const u8 *ies, u16 ies_len, const u8 *ie,
 972                                        u16 ie_len)
 973 {
 974         struct ieee80211_vendor_ie *vie;
 975         u32 oui;
 976
 977         /* IE tag at offset 0, length at offset 1 */
 978         if (ie_len < 2 || 2 + ie[1] > ie_len)
 979                 return NULL;
 980
 981         if (ie[0] != WLAN_EID_VENDOR_SPECIFIC)
 982                 return cfg80211_find_ie(ie[0], ies, ies_len);
 983
 984         /* make sure there is room for 3 bytes OUI + 1 byte OUI type */
 985         if (ie[1] < 4)
 986                 return NULL;
 987         vie = (struct ieee80211_vendor_ie *)ie;
 988         oui = vie->oui[0] << 16 | vie->oui[1] << 8 | vie->oui[2];
 989         return cfg80211_find_vendor_ie(oui, vie->oui_type, ies,
 990                                        ies_len);
 991 }
 992
 993 /**
 994  * merge the IEs in two lists into a single list.
 995  * do not include IEs from the second list which exist in the first list.
 996  * add only vendor specific IEs from second list to keep
 997  * the merged list sorted (since vendor-specific IE has the
 998  * highest tag number)
 999  * caller must free the allocated memory for merged IEs
1000  */
1001 static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len,
1002                                          const u8 *ies2, u16 ies2_len,
1003                                          u8 **merged_ies, u16 *merged_len)
1004 {
1005         u8 *buf, *dpos;
1006         const u8 *spos;
1007
1008         if (ies1_len == 0 && ies2_len == 0) {
1009                 *merged_ies = NULL;
1010                 *merged_len = 0;
1011                 return 0;
1012         }
1013
1014         buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL);
1015         if (!buf)
1016                 return -ENOMEM;
1017         memcpy(buf, ies1, ies1_len);
1018         dpos = buf + ies1_len;
1019         spos = ies2;
1020         while (spos + 1 < ies2 + ies2_len) {
1021                 /* IE tag at offset 0, length at offset 1 */
1022                 u16 ielen = 2 + spos[1];
1023
1024                 if (spos + ielen > ies2 + ies2_len)
1025                         break;
1026                 if (spos[0] == WLAN_EID_VENDOR_SPECIFIC &&
1027                     !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) {
1028                         memcpy(dpos, spos, ielen);
1029                         dpos += ielen;
1030                 }
1031                 spos += ielen;
1032         }
1033
1034         *merged_ies = buf;
1035         *merged_len = dpos - buf;
1036         return 0;
1037 }
1038
1039 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
1040 {
1041         print_hex_dump_bytes("head     ", DUMP_PREFIX_OFFSET,
1042                              b->head, b->head_len);
1043         print_hex_dump_bytes("tail     ", DUMP_PREFIX_OFFSET,
1044                              b->tail, b->tail_len);
1045         print_hex_dump_bytes("BCON IE  ", DUMP_PREFIX_OFFSET,
1046                              b->beacon_ies, b->beacon_ies_len);
1047         print_hex_dump_bytes("PROBE    ", DUMP_PREFIX_OFFSET,
1048                              b->probe_resp, b->probe_resp_len);
1049         print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
1050                              b->proberesp_ies, b->proberesp_ies_len);
1051         print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
1052                              b->assocresp_ies, b->assocresp_ies_len);
1053 }
1054
1055 /* internal functions for device reset and starting AP */
1056 static int _wil_cfg80211_set_ies(struct wiphy *wiphy,
1057                                  struct cfg80211_beacon_data *bcon)
1058 {
1059         int rc;
1060         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1061         u16 len = 0, proberesp_len = 0;
1062         u8 *ies = NULL, *proberesp = NULL;
1063
1064         if (bcon->probe_resp) {
1065                 struct ieee80211_mgmt *f =
1066                         (struct ieee80211_mgmt *)bcon->probe_resp;
1067                 size_t hlen = offsetof(struct ieee80211_mgmt,
1068                                        u.probe_resp.variable);
1069                 proberesp = f->u.probe_resp.variable;
1070                 proberesp_len = bcon->probe_resp_len - hlen;
1071         }
1072         rc = _wil_cfg80211_merge_extra_ies(proberesp,
1073                                            proberesp_len,
1074                                            bcon->proberesp_ies,
1075                                            bcon->proberesp_ies_len,
1076                                            &ies, &len);
1077
1078         if (rc)
1079                 goto out;
1080
1081         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, len, ies);
1082         if (rc)
1083                 goto out;
1084
1085         if (bcon->assocresp_ies)
1086                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
1087                                 bcon->assocresp_ies_len, bcon->assocresp_ies);
1088         else
1089                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, len, ies);
1090 #if 0 /* to use beacon IE's, remove this #if 0 */
1091         if (rc)
1092                 goto out;
1093
1094         rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail);
1095 #endif
1096 out:
1097         kfree(ies);
1098         return rc;
1099 }
1100
1101 static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
1102                                   struct net_device *ndev,
1103                                   const u8 *ssid, size_t ssid_len, u32 privacy,
1104                                   int bi, u8 chan,
1105                                   struct cfg80211_beacon_data *bcon,
1106                                   u8 hidden_ssid, u32 pbss)
1107 {
1108         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1109         int rc;
1110         struct wireless_dev *wdev = ndev->ieee80211_ptr;
1111         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
1112         u8 is_go = (wdev->iftype == NL80211_IFTYPE_P2P_GO);
1113
1114         if (pbss)
1115                 wmi_nettype = WMI_NETTYPE_P2P;
1116
1117         wil_dbg_misc(wil, "%s: is_go=%d\n", __func__, is_go);
1118         if (is_go && !pbss) {
1119                 wil_err(wil, "%s: P2P GO must be in PBSS\n", __func__);
1120                 return -ENOTSUPP;
1121         }
1122
1123         wil_set_recovery_state(wil, fw_recovery_idle);
1124
1125         mutex_lock(&wil->mutex);
1126
1127         __wil_down(wil);
1128         rc = __wil_up(wil);
1129         if (rc)
1130                 goto out;
1131
1132         rc = wmi_set_ssid(wil, ssid_len, ssid);
1133         if (rc)
1134                 goto out;
1135
1136         rc = _wil_cfg80211_set_ies(wiphy, bcon);
1137         if (rc)
1138                 goto out;
1139
1140         wil->privacy = privacy;
1141         wil->channel = chan;
1142         wil->hidden_ssid = hidden_ssid;
1143         wil->pbss = pbss;
1144
1145         netif_carrier_on(ndev);
1146
1147         rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid, is_go);
1148         if (rc)
1149                 goto err_pcp_start;
1150
1151         rc = wil_bcast_init(wil);
1152         if (rc)
1153                 goto err_bcast;
1154
1155         goto out; /* success */
1156
1157 err_bcast:
1158         wmi_pcp_stop(wil);
1159 err_pcp_start:
1160         netif_carrier_off(ndev);
1161 out:
1162         mutex_unlock(&wil->mutex);
1163         return rc;
1164 }
1165
1166 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
1167                                       struct net_device *ndev,
1168                                       struct cfg80211_beacon_data *bcon)
1169 {
1170         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1171         int rc;
1172         u32 privacy = 0;
1173
1174         wil_dbg_misc(wil, "%s()\n", __func__);
1175         wil_print_bcon_data(bcon);
1176
1177         if (bcon->tail &&
1178             cfg80211_find_ie(WLAN_EID_RSN, bcon->tail,
1179                              bcon->tail_len))
1180                 privacy = 1;
1181
1182         /* in case privacy has changed, need to restart the AP */
1183         if (wil->privacy != privacy) {
1184                 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1185
1186                 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
1187                              wil->privacy, privacy);
1188
1189                 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
1190                                             wdev->ssid_len, privacy,
1191                                             wdev->beacon_interval,
1192                                             wil->channel, bcon,
1193                                             wil->hidden_ssid,
1194                                             wil->pbss);
1195         } else {
1196                 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1197         }
1198
1199         return rc;
1200 }
1201
1202 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
1203                                  struct net_device *ndev,
1204                                  struct cfg80211_ap_settings *info)
1205 {
1206         int rc;
1207         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1208         struct ieee80211_channel *channel = info->chandef.chan;
1209         struct cfg80211_beacon_data *bcon = &info->beacon;
1210         struct cfg80211_crypto_settings *crypto = &info->crypto;
1211         u8 hidden_ssid;
1212
1213         wil_dbg_misc(wil, "%s()\n", __func__);
1214
1215         if (!channel) {
1216                 wil_err(wil, "AP: No channel???\n");
1217                 return -EINVAL;
1218         }
1219
1220         switch (info->hidden_ssid) {
1221         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1222                 hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
1223                 break;
1224
1225         case NL80211_HIDDEN_SSID_ZERO_LEN:
1226                 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
1227                 break;
1228
1229         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1230                 hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
1231                 break;
1232
1233         default:
1234                 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid);
1235                 return -EOPNOTSUPP;
1236         }
1237         wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
1238                      channel->center_freq, info->privacy ? "secure" : "open");
1239         wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
1240                      info->privacy, info->auth_type);
1241         wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
1242                      info->hidden_ssid);
1243         wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
1244                      info->dtim_period);
1245         wil_dbg_misc(wil, "PBSS %d\n", info->pbss);
1246         print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
1247                              info->ssid, info->ssid_len);
1248         wil_print_bcon_data(bcon);
1249         wil_print_crypto(wil, crypto);
1250
1251         rc = _wil_cfg80211_start_ap(wiphy, ndev,
1252                                     info->ssid, info->ssid_len, info->privacy,
1253                                     info->beacon_interval, channel->hw_value,
1254                                     bcon, hidden_ssid, info->pbss);
1255
1256         return rc;
1257 }
1258
1259 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
1260                                 struct net_device *ndev)
1261 {
1262         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1263
1264         wil_dbg_misc(wil, "%s()\n", __func__);
1265
1266         netif_carrier_off(ndev);
1267         wil_set_recovery_state(wil, fw_recovery_idle);
1268
1269         mutex_lock(&wil->mutex);
1270
1271         wmi_pcp_stop(wil);
1272
1273         __wil_down(wil);
1274
1275         mutex_unlock(&wil->mutex);
1276
1277         return 0;
1278 }
1279
1280 static int wil_cfg80211_del_station(struct wiphy *wiphy,
1281                                     struct net_device *dev,
1282                                     struct station_del_parameters *params)
1283 {
1284         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1285
1286         wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
1287                      params->reason_code);
1288
1289         mutex_lock(&wil->mutex);
1290         wil6210_disconnect(wil, params->mac, params->reason_code, false);
1291         mutex_unlock(&wil->mutex);
1292
1293         return 0;
1294 }
1295
1296 /* probe_client handling */
1297 static void wil_probe_client_handle(struct wil6210_priv *wil,
1298                                     struct wil_probe_client_req *req)
1299 {
1300         struct net_device *ndev = wil_to_ndev(wil);
1301         struct wil_sta_info *sta = &wil->sta[req->cid];
1302         /* assume STA is alive if it is still connected,
1303          * else FW will disconnect it
1304          */
1305         bool alive = (sta->status == wil_sta_connected);
1306
1307         cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
1308 }
1309
1310 static struct list_head *next_probe_client(struct wil6210_priv *wil)
1311 {
1312         struct list_head *ret = NULL;
1313
1314         mutex_lock(&wil->probe_client_mutex);
1315
1316         if (!list_empty(&wil->probe_client_pending)) {
1317                 ret = wil->probe_client_pending.next;
1318                 list_del(ret);
1319         }
1320
1321         mutex_unlock(&wil->probe_client_mutex);
1322
1323         return ret;
1324 }
1325
1326 void wil_probe_client_worker(struct work_struct *work)
1327 {
1328         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1329                                                 probe_client_worker);
1330         struct wil_probe_client_req *req;
1331         struct list_head *lh;
1332
1333         while ((lh = next_probe_client(wil)) != NULL) {
1334                 req = list_entry(lh, struct wil_probe_client_req, list);
1335
1336                 wil_probe_client_handle(wil, req);
1337                 kfree(req);
1338         }
1339 }
1340
1341 void wil_probe_client_flush(struct wil6210_priv *wil)
1342 {
1343         struct wil_probe_client_req *req, *t;
1344
1345         wil_dbg_misc(wil, "%s()\n", __func__);
1346
1347         mutex_lock(&wil->probe_client_mutex);
1348
1349         list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
1350                 list_del(&req->list);
1351                 kfree(req);
1352         }
1353
1354         mutex_unlock(&wil->probe_client_mutex);
1355 }
1356
1357 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
1358                                      struct net_device *dev,
1359                                      const u8 *peer, u64 *cookie)
1360 {
1361         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1362         struct wil_probe_client_req *req;
1363         int cid = wil_find_cid(wil, peer);
1364
1365         wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1366
1367         if (cid < 0)
1368                 return -ENOLINK;
1369
1370         req = kzalloc(sizeof(*req), GFP_KERNEL);
1371         if (!req)
1372                 return -ENOMEM;
1373
1374         req->cid = cid;
1375         req->cookie = cid;
1376
1377         mutex_lock(&wil->probe_client_mutex);
1378         list_add_tail(&req->list, &wil->probe_client_pending);
1379         mutex_unlock(&wil->probe_client_mutex);
1380
1381         *cookie = req->cookie;
1382         queue_work(wil->wq_service, &wil->probe_client_worker);
1383         return 0;
1384 }
1385
1386 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1387                                    struct net_device *dev,
1388                                    struct bss_parameters *params)
1389 {
1390         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1391
1392         if (params->ap_isolate >= 0) {
1393                 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1394                              wil->ap_isolate, params->ap_isolate);
1395                 wil->ap_isolate = params->ap_isolate;
1396         }
1397
1398         return 0;
1399 }
1400
1401 static int wil_cfg80211_start_p2p_device(struct wiphy *wiphy,
1402                                          struct wireless_dev *wdev)
1403 {
1404         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1405
1406         wil_dbg_misc(wil, "%s: entered\n", __func__);
1407         wil->p2p.p2p_dev_started = 1;
1408         return 0;
1409 }
1410
1411 static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy,
1412                                          struct wireless_dev *wdev)
1413 {
1414         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1415         struct wil_p2p_info *p2p = &wil->p2p;
1416
1417         if (!p2p->p2p_dev_started)
1418                 return;
1419
1420         wil_dbg_misc(wil, "%s: entered\n", __func__);
1421         mutex_lock(&wil->mutex);
1422         wil_p2p_stop_radio_operations(wil);
1423         p2p->p2p_dev_started = 0;
1424         mutex_unlock(&wil->mutex);
1425 }
1426
1427 static struct cfg80211_ops wil_cfg80211_ops = {
1428         .add_virtual_intf = wil_cfg80211_add_iface,
1429         .del_virtual_intf = wil_cfg80211_del_iface,
1430         .scan = wil_cfg80211_scan,
1431         .connect = wil_cfg80211_connect,
1432         .disconnect = wil_cfg80211_disconnect,
1433         .change_virtual_intf = wil_cfg80211_change_iface,
1434         .get_station = wil_cfg80211_get_station,
1435         .dump_station = wil_cfg80211_dump_station,
1436         .remain_on_channel = wil_remain_on_channel,
1437         .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1438         .mgmt_tx = wil_cfg80211_mgmt_tx,
1439         .set_monitor_channel = wil_cfg80211_set_channel,
1440         .add_key = wil_cfg80211_add_key,
1441         .del_key = wil_cfg80211_del_key,
1442         .set_default_key = wil_cfg80211_set_default_key,
1443         /* AP mode */
1444         .change_beacon = wil_cfg80211_change_beacon,
1445         .start_ap = wil_cfg80211_start_ap,
1446         .stop_ap = wil_cfg80211_stop_ap,
1447         .del_station = wil_cfg80211_del_station,
1448         .probe_client = wil_cfg80211_probe_client,
1449         .change_bss = wil_cfg80211_change_bss,
1450         /* P2P device */
1451         .start_p2p_device = wil_cfg80211_start_p2p_device,
1452         .stop_p2p_device = wil_cfg80211_stop_p2p_device,
1453 };
1454
1455 static void wil_wiphy_init(struct wiphy *wiphy)
1456 {
1457         wiphy->max_scan_ssids = 1;
1458         wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1459         wiphy->max_remain_on_channel_duration = WIL_MAX_ROC_DURATION_MS;
1460         wiphy->max_num_pmkids = 0 /* TODO: */;
1461         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1462                                  BIT(NL80211_IFTYPE_AP) |
1463                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
1464                                  BIT(NL80211_IFTYPE_P2P_GO) |
1465                                  BIT(NL80211_IFTYPE_P2P_DEVICE) |
1466                                  BIT(NL80211_IFTYPE_MONITOR);
1467         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1468                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1469                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1470         dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1471                 __func__, wiphy->flags);
1472         wiphy->probe_resp_offload =
1473                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1474                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1475                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1476
1477         wiphy->bands[NL80211_BAND_60GHZ] = &wil_band_60ghz;
1478
1479         /* TODO: figure this out */
1480         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1481
1482         wiphy->cipher_suites = wil_cipher_suites;
1483         wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1484         wiphy->mgmt_stypes = wil_mgmt_stypes;
1485         wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1486 }
1487
1488 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1489 {
1490         int rc = 0;
1491         struct wireless_dev *wdev;
1492
1493         dev_dbg(dev, "%s()\n", __func__);
1494
1495         wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1496         if (!wdev)
1497                 return ERR_PTR(-ENOMEM);
1498
1499         wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1500                                 sizeof(struct wil6210_priv));
1501         if (!wdev->wiphy) {
1502                 rc = -ENOMEM;
1503                 goto out;
1504         }
1505
1506         set_wiphy_dev(wdev->wiphy, dev);
1507         wil_wiphy_init(wdev->wiphy);
1508
1509         return wdev;
1510
1511 out:
1512         kfree(wdev);
1513
1514         return ERR_PTR(rc);
1515 }
1516
1517 void wil_wdev_free(struct wil6210_priv *wil)
1518 {
1519         struct wireless_dev *wdev = wil_to_wdev(wil);
1520
1521         dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1522
1523         if (!wdev)
1524                 return;
1525
1526         wiphy_free(wdev->wiphy);
1527         kfree(wdev);
1528 }
1529
1530 void wil_p2p_wdev_free(struct wil6210_priv *wil)
1531 {
1532         struct wireless_dev *p2p_wdev;
1533
1534         mutex_lock(&wil->p2p_wdev_mutex);
1535         p2p_wdev = wil->p2p_wdev;
1536         wil->p2p_wdev = NULL;
1537         wil->radio_wdev = wil_to_wdev(wil);
1538         mutex_unlock(&wil->p2p_wdev_mutex);
1539         if (p2p_wdev) {
1540                 cfg80211_unregister_wdev(p2p_wdev);
1541                 kfree(p2p_wdev);
1542         }
1543 }