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                 if (!wil->p2p.p2p_dev_started) {
 382                         wil_err(wil, "P2P search requested on stopped P2P device\n");
 383                         return -EIO;
 384                 }
 385                 wil->scan_request = request;
 386                 wil->radio_wdev = wdev;
 387                 rc = wil_p2p_search(wil, request);
 388                 if (rc) {
 389                         wil->radio_wdev = wil_to_wdev(wil);
 390                         wil->scan_request = NULL;
 391                 }
 392                 return rc;
 393         }
 394
 395         (void)wil_p2p_stop_discovery(wil);
 396
 397         wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
 398         wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
 399
 400         for (i = 0; i < request->n_ssids; i++) {
 401                 wil_dbg_misc(wil, "SSID[%d]", i);
 402                 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 403                                      request->ssids[i].ssid,
 404                                      request->ssids[i].ssid_len);
 405         }
 406
 407         if (request->n_ssids)
 408                 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
 409                                   request->ssids[0].ssid);
 410         else
 411                 rc = wmi_set_ssid(wil, 0, NULL);
 412
 413         if (rc) {
 414                 wil_err(wil, "set SSID for scan request failed: %d\n", rc);
 415                 return rc;
 416         }
 417
 418         wil->scan_request = request;
 419         mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 420
 421         memset(&cmd, 0, sizeof(cmd));
 422         cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
 423         cmd.cmd.num_channels = 0;
 424         n = min(request->n_channels, 4U);
 425         for (i = 0; i < n; i++) {
 426                 int ch = request->channels[i]->hw_value;
 427
 428                 if (ch == 0) {
 429                         wil_err(wil,
 430                                 "Scan requested for unknown frequency %dMhz\n",
 431                                 request->channels[i]->center_freq);
 432                         continue;
 433                 }
 434                 /* 0-based channel indexes */
 435                 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 436                 wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 437                              request->channels[i]->center_freq);
 438         }
 439
 440         if (request->ie_len)
 441                 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
 442                                      request->ie, request->ie_len);
 443         else
 444                 wil_dbg_misc(wil, "Scan has no IE's\n");
 445
 446         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie);
 447         if (rc)
 448                 goto out;
 449
 450         if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
 451                 cmd.cmd.discovery_mode = 1;
 452                 wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
 453         }
 454
 455         wil->radio_wdev = wdev;
 456         rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 457                         cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 458
 459 out:
 460         if (rc) {
 461                 del_timer_sync(&wil->scan_timer);
 462                 wil->radio_wdev = wil_to_wdev(wil);
 463                 wil->scan_request = NULL;
 464         }
 465
 466         return rc;
 467 }
 468
 469 static void wil_print_crypto(struct wil6210_priv *wil,
 470                              struct cfg80211_crypto_settings *c)
 471 {
 472         int i, n;
 473
 474         wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
 475                      c->wpa_versions, c->cipher_group);
 476         wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
 477         n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
 478         for (i = 0; i < n; i++)
 479                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 480                              c->ciphers_pairwise[i]);
 481         wil_dbg_misc(wil, "}\n");
 482         wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
 483         n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
 484         for (i = 0; i < n; i++)
 485                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 486                              c->akm_suites[i]);
 487         wil_dbg_misc(wil, "}\n");
 488         wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
 489                      c->control_port, be16_to_cpu(c->control_port_ethertype),
 490                      c->control_port_no_encrypt);
 491 }
 492
 493 static void wil_print_connect_params(struct wil6210_priv *wil,
 494                                      struct cfg80211_connect_params *sme)
 495 {
 496         wil_info(wil, "Connecting to:\n");
 497         if (sme->channel) {
 498                 wil_info(wil, "  Channel: %d freq %d\n",
 499                          sme->channel->hw_value, sme->channel->center_freq);
 500         }
 501         if (sme->bssid)
 502                 wil_info(wil, "  BSSID: %pM\n", sme->bssid);
 503         if (sme->ssid)
 504                 print_hex_dump(KERN_INFO, "  SSID: ", DUMP_PREFIX_OFFSET,
 505                                16, 1, sme->ssid, sme->ssid_len, true);
 506         wil_info(wil, "  Privacy: %s\n", sme->privacy ? "secure" : "open");
 507         wil_info(wil, "  PBSS: %d\n", sme->pbss);
 508         wil_print_crypto(wil, &sme->crypto);
 509 }
 510
 511 static int wil_cfg80211_connect(struct wiphy *wiphy,
 512                                 struct net_device *ndev,
 513                                 struct cfg80211_connect_params *sme)
 514 {
 515         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 516         struct cfg80211_bss *bss;
 517         struct wmi_connect_cmd conn;
 518         const u8 *ssid_eid;
 519         const u8 *rsn_eid;
 520         int ch;
 521         int rc = 0;
 522         enum ieee80211_bss_type bss_type = IEEE80211_BSS_TYPE_ESS;
 523
 524         wil_dbg_misc(wil, "%s()\n", __func__);
 525         wil_print_connect_params(wil, sme);
 526
 527         if (test_bit(wil_status_fwconnecting, wil->status) ||
 528             test_bit(wil_status_fwconnected, wil->status))
 529                 return -EALREADY;
 530
 531         if (sme->ie_len > WMI_MAX_IE_LEN) {
 532                 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
 533                 return -ERANGE;
 534         }
 535
 536         rsn_eid = sme->ie ?
 537                         cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 538                         NULL;
 539         if (sme->privacy && !rsn_eid)
 540                 wil_info(wil, "WSC connection\n");
 541
 542         if (sme->pbss)
 543                 bss_type = IEEE80211_BSS_TYPE_PBSS;
 544
 545         bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 546                                sme->ssid, sme->ssid_len,
 547                                bss_type, IEEE80211_PRIVACY_ANY);
 548         if (!bss) {
 549                 wil_err(wil, "Unable to find BSS\n");
 550                 return -ENOENT;
 551         }
 552
 553         ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 554         if (!ssid_eid) {
 555                 wil_err(wil, "No SSID\n");
 556                 rc = -ENOENT;
 557                 goto out;
 558         }
 559         wil->privacy = sme->privacy;
 560
 561         if (wil->privacy) {
 562                 /* For secure assoc, remove old keys */
 563                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 564                                         WMI_KEY_USE_PAIRWISE);
 565                 if (rc) {
 566                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
 567                         goto out;
 568                 }
 569                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 570                                         WMI_KEY_USE_RX_GROUP);
 571                 if (rc) {
 572                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
 573                         goto out;
 574                 }
 575         }
 576
 577         /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
 578          * elements. Send it also in case it's empty, to erase previously set
 579          * ies in FW.
 580          */
 581         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 582         if (rc)
 583                 goto out;
 584
 585         /* WMI_CONNECT_CMD */
 586         memset(&conn, 0, sizeof(conn));
 587         switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
 588         case WLAN_CAPABILITY_DMG_TYPE_AP:
 589                 conn.network_type = WMI_NETTYPE_INFRA;
 590                 break;
 591         case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 592                 conn.network_type = WMI_NETTYPE_P2P;
 593                 break;
 594         default:
 595                 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 596                         bss->capability);
 597                 goto out;
 598         }
 599         if (wil->privacy) {
 600                 if (rsn_eid) { /* regular secure connection */
 601                         conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 602                         conn.auth_mode = WMI_AUTH_WPA2_PSK;
 603                         conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 604                         conn.pairwise_crypto_len = 16;
 605                         conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
 606                         conn.group_crypto_len = 16;
 607                 } else { /* WSC */
 608                         conn.dot11_auth_mode = WMI_AUTH11_WSC;
 609                         conn.auth_mode = WMI_AUTH_NONE;
 610                 }
 611         } else { /* insecure connection */
 612                 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 613                 conn.auth_mode = WMI_AUTH_NONE;
 614         }
 615
 616         conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 617         memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 618
 619         ch = bss->channel->hw_value;
 620         if (ch == 0) {
 621                 wil_err(wil, "BSS at unknown frequency %dMhz\n",
 622                         bss->channel->center_freq);
 623                 rc = -EOPNOTSUPP;
 624                 goto out;
 625         }
 626         conn.channel = ch - 1;
 627
 628         ether_addr_copy(conn.bssid, bss->bssid);
 629         ether_addr_copy(conn.dst_mac, bss->bssid);
 630
 631         set_bit(wil_status_fwconnecting, wil->status);
 632
 633         rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 634         if (rc == 0) {
 635                 netif_carrier_on(ndev);
 636                 /* Connect can take lots of time */
 637                 mod_timer(&wil->connect_timer,
 638                           jiffies + msecs_to_jiffies(2000));
 639         } else {
 640                 clear_bit(wil_status_fwconnecting, wil->status);
 641         }
 642
 643  out:
 644         cfg80211_put_bss(wiphy, bss);
 645
 646         return rc;
 647 }
 648
 649 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 650                                    struct net_device *ndev,
 651                                    u16 reason_code)
 652 {
 653         int rc;
 654         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 655
 656         wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
 657
 658         if (!(test_bit(wil_status_fwconnecting, wil->status) ||
 659               test_bit(wil_status_fwconnected, wil->status))) {
 660                 wil_err(wil, "%s: Disconnect was called while disconnected\n",
 661                         __func__);
 662                 return 0;
 663         }
 664
 665         rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
 666                       WMI_DISCONNECT_EVENTID, NULL, 0,
 667                       WIL6210_DISCONNECT_TO_MS);
 668         if (rc)
 669                 wil_err(wil, "%s: disconnect error %d\n", __func__, rc);
 670
 671         return rc;
 672 }
 673
 674 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 675                          struct cfg80211_mgmt_tx_params *params,
 676                          u64 *cookie)
 677 {
 678         const u8 *buf = params->buf;
 679         size_t len = params->len;
 680         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 681         int rc;
 682         bool tx_status = false;
 683         struct ieee80211_mgmt *mgmt_frame = (void *)buf;
 684         struct wmi_sw_tx_req_cmd *cmd;
 685         struct {
 686                 struct wmi_cmd_hdr wmi;
 687                 struct wmi_sw_tx_complete_event evt;
 688         } __packed evt;
 689
 690         /* Note, currently we do not support the "wait" parameter, user-space
 691          * must call remain_on_channel before mgmt_tx or listen on a channel
 692          * another way (AP/PCP or connected station)
 693          * in addition we need to check if specified "chan" argument is
 694          * different from currently "listened" channel and fail if it is.
 695          */
 696
 697         wil_dbg_misc(wil, "%s()\n", __func__);
 698         print_hex_dump_bytes("mgmt tx frame ", DUMP_PREFIX_OFFSET, buf, len);
 699
 700         cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
 701         if (!cmd) {
 702                 rc = -ENOMEM;
 703                 goto out;
 704         }
 705
 706         memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
 707         cmd->len = cpu_to_le16(len);
 708         memcpy(cmd->payload, buf, len);
 709
 710         rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
 711                       WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 712         if (rc == 0)
 713                 tx_status = !evt.evt.status;
 714
 715         kfree(cmd);
 716  out:
 717         cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 718                                 tx_status, GFP_KERNEL);
 719         return rc;
 720 }
 721
 722 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 723                                     struct cfg80211_chan_def *chandef)
 724 {
 725         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 726         struct wireless_dev *wdev = wil_to_wdev(wil);
 727
 728         wdev->preset_chandef = *chandef;
 729
 730         return 0;
 731 }
 732
 733 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
 734                                                bool pairwise)
 735 {
 736         struct wireless_dev *wdev = wil_to_wdev(wil);
 737         enum wmi_key_usage rc;
 738
 739         if (pairwise) {
 740                 rc = WMI_KEY_USE_PAIRWISE;
 741         } else {
 742                 switch (wdev->iftype) {
 743                 case NL80211_IFTYPE_STATION:
 744                 case NL80211_IFTYPE_P2P_CLIENT:
 745                         rc = WMI_KEY_USE_RX_GROUP;
 746                         break;
 747                 case NL80211_IFTYPE_AP:
 748                 case NL80211_IFTYPE_P2P_GO:
 749                         rc = WMI_KEY_USE_TX_GROUP;
 750                         break;
 751                 default:
 752                         /* TODO: Rx GTK or Tx GTK? */
 753                         wil_err(wil, "Can't determine GTK type\n");
 754                         rc = WMI_KEY_USE_RX_GROUP;
 755                         break;
 756                 }
 757         }
 758         wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
 759
 760         return rc;
 761 }
 762
 763 static struct wil_tid_crypto_rx_single *
 764 wil_find_crypto_ctx(struct wil6210_priv *wil, u8 key_index,
 765                     enum wmi_key_usage key_usage, const u8 *mac_addr)
 766 {
 767         int cid = -EINVAL;
 768         int tid = 0;
 769         struct wil_sta_info *s;
 770         struct wil_tid_crypto_rx *c;
 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[%d]\n", mac_addr,
 782                         key_usage_str[key_usage], key_index);
 783                 return ERR_PTR(cid);
 784         }
 785
 786         s = &wil->sta[cid];
 787         if (key_usage == WMI_KEY_USE_PAIRWISE)
 788                 c = &s->tid_crypto_rx[tid];
 789         else
 790                 c = &s->group_crypto_rx;
 791
 792         return &c->key_id[key_index];
 793 }
 794
 795 static int wil_cfg80211_add_key(struct wiphy *wiphy,
 796                                 struct net_device *ndev,
 797                                 u8 key_index, bool pairwise,
 798                                 const u8 *mac_addr,
 799                                 struct key_params *params)
 800 {
 801         int rc;
 802         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 803         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 804         struct wil_tid_crypto_rx_single *cc = wil_find_crypto_ctx(wil,
 805                                                                   key_index,
 806                                                                   key_usage,
 807                                                                   mac_addr);
 808
 809         wil_dbg_misc(wil, "%s(%pM %s[%d] PN %*phN)\n", __func__,
 810                      mac_addr, key_usage_str[key_usage], key_index,
 811                      params->seq_len, params->seq);
 812
 813         if (IS_ERR(cc)) {
 814                 wil_err(wil, "Not connected, %s(%pM %s[%d] PN %*phN)\n",
 815                         __func__, mac_addr, key_usage_str[key_usage], key_index,
 816                         params->seq_len, params->seq);
 817                 return -EINVAL;
 818         }
 819
 820         if (cc)
 821                 cc->key_set = false;
 822
 823         if (params->seq && params->seq_len != IEEE80211_GCMP_PN_LEN) {
 824                 wil_err(wil,
 825                         "Wrong PN len %d, %s(%pM %s[%d] PN %*phN)\n",
 826                         params->seq_len, __func__, mac_addr,
 827                         key_usage_str[key_usage], key_index,
 828                         params->seq_len, params->seq);
 829                 return -EINVAL;
 830         }
 831
 832         rc = wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
 833                                 params->key, key_usage);
 834         if ((rc == 0) && cc) {
 835                 if (params->seq)
 836                         memcpy(cc->pn, params->seq, IEEE80211_GCMP_PN_LEN);
 837                 else
 838                         memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
 839                 cc->key_set = true;
 840         }
 841
 842         return rc;
 843 }
 844
 845 static int wil_cfg80211_del_key(struct wiphy *wiphy,
 846                                 struct net_device *ndev,
 847                                 u8 key_index, bool pairwise,
 848                                 const u8 *mac_addr)
 849 {
 850         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 851         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 852         struct wil_tid_crypto_rx_single *cc = wil_find_crypto_ctx(wil,
 853                                                                   key_index,
 854                                                                   key_usage,
 855                                                                   mac_addr);
 856
 857         wil_dbg_misc(wil, "%s(%pM %s[%d])\n", __func__, mac_addr,
 858                      key_usage_str[key_usage], key_index);
 859
 860         if (IS_ERR(cc))
 861                 wil_info(wil, "Not connected, %s(%pM %s[%d])\n", __func__,
 862                          mac_addr, key_usage_str[key_usage], key_index);
 863
 864         if (!IS_ERR_OR_NULL(cc))
 865                 cc->key_set = false;
 866
 867         return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
 868 }
 869
 870 /* Need to be present or wiphy_new() will WARN */
 871 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 872                                         struct net_device *ndev,
 873                                         u8 key_index, bool unicast,
 874                                         bool multicast)
 875 {
 876         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 877
 878         wil_dbg_misc(wil, "%s: entered\n", __func__);
 879         return 0;
 880 }
 881
 882 static int wil_remain_on_channel(struct wiphy *wiphy,
 883                                  struct wireless_dev *wdev,
 884                                  struct ieee80211_channel *chan,
 885                                  unsigned int duration,
 886                                  u64 *cookie)
 887 {
 888         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 889         int rc;
 890
 891         wil_dbg_misc(wil, "%s() center_freq=%d, duration=%d iftype=%d\n",
 892                      __func__, chan->center_freq, duration, wdev->iftype);
 893
 894         rc = wil_p2p_listen(wil, duration, chan, cookie);
 895         if (rc)
 896                 return rc;
 897
 898         wil->radio_wdev = wdev;
 899
 900         cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
 901                                   GFP_KERNEL);
 902
 903         return 0;
 904 }
 905
 906 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
 907                                         struct wireless_dev *wdev,
 908                                         u64 cookie)
 909 {
 910         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 911
 912         wil_dbg_misc(wil, "%s()\n", __func__);
 913
 914         return wil_p2p_cancel_listen(wil, cookie);
 915 }
 916
 917 /**
 918  * find a specific IE in a list of IEs
 919  * return a pointer to the beginning of IE in the list
 920  * or NULL if not found
 921  */
 922 static const u8 *_wil_cfg80211_find_ie(const u8 *ies, u16 ies_len, const u8 *ie,
 923                                        u16 ie_len)
 924 {
 925         struct ieee80211_vendor_ie *vie;
 926         u32 oui;
 927
 928         /* IE tag at offset 0, length at offset 1 */
 929         if (ie_len < 2 || 2 + ie[1] > ie_len)
 930                 return NULL;
 931
 932         if (ie[0] != WLAN_EID_VENDOR_SPECIFIC)
 933                 return cfg80211_find_ie(ie[0], ies, ies_len);
 934
 935         /* make sure there is room for 3 bytes OUI + 1 byte OUI type */
 936         if (ie[1] < 4)
 937                 return NULL;
 938         vie = (struct ieee80211_vendor_ie *)ie;
 939         oui = vie->oui[0] << 16 | vie->oui[1] << 8 | vie->oui[2];
 940         return cfg80211_find_vendor_ie(oui, vie->oui_type, ies,
 941                                        ies_len);
 942 }
 943
 944 /**
 945  * merge the IEs in two lists into a single list.
 946  * do not include IEs from the second list which exist in the first list.
 947  * add only vendor specific IEs from second list to keep
 948  * the merged list sorted (since vendor-specific IE has the
 949  * highest tag number)
 950  * caller must free the allocated memory for merged IEs
 951  */
 952 static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len,
 953                                          const u8 *ies2, u16 ies2_len,
 954                                          u8 **merged_ies, u16 *merged_len)
 955 {
 956         u8 *buf, *dpos;
 957         const u8 *spos;
 958
 959         if (ies1_len == 0 && ies2_len == 0) {
 960                 *merged_ies = NULL;
 961                 *merged_len = 0;
 962                 return 0;
 963         }
 964
 965         buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL);
 966         if (!buf)
 967                 return -ENOMEM;
 968         memcpy(buf, ies1, ies1_len);
 969         dpos = buf + ies1_len;
 970         spos = ies2;
 971         while (spos + 1 < ies2 + ies2_len) {
 972                 /* IE tag at offset 0, length at offset 1 */
 973                 u16 ielen = 2 + spos[1];
 974
 975                 if (spos + ielen > ies2 + ies2_len)
 976                         break;
 977                 if (spos[0] == WLAN_EID_VENDOR_SPECIFIC &&
 978                     !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) {
 979                         memcpy(dpos, spos, ielen);
 980                         dpos += ielen;
 981                 }
 982                 spos += ielen;
 983         }
 984
 985         *merged_ies = buf;
 986         *merged_len = dpos - buf;
 987         return 0;
 988 }
 989
 990 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
 991 {
 992         print_hex_dump_bytes("head     ", DUMP_PREFIX_OFFSET,
 993                              b->head, b->head_len);
 994         print_hex_dump_bytes("tail     ", DUMP_PREFIX_OFFSET,
 995                              b->tail, b->tail_len);
 996         print_hex_dump_bytes("BCON IE  ", DUMP_PREFIX_OFFSET,
 997                              b->beacon_ies, b->beacon_ies_len);
 998         print_hex_dump_bytes("PROBE    ", DUMP_PREFIX_OFFSET,
 999                              b->probe_resp, b->probe_resp_len);
1000         print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
1001                              b->proberesp_ies, b->proberesp_ies_len);
1002         print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
1003                              b->assocresp_ies, b->assocresp_ies_len);
1004 }
1005
1006 /* internal functions for device reset and starting AP */
1007 static int _wil_cfg80211_set_ies(struct wiphy *wiphy,
1008                                  struct cfg80211_beacon_data *bcon)
1009 {
1010         int rc;
1011         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1012         u16 len = 0, proberesp_len = 0;
1013         u8 *ies = NULL, *proberesp = NULL;
1014
1015         if (bcon->probe_resp) {
1016                 struct ieee80211_mgmt *f =
1017                         (struct ieee80211_mgmt *)bcon->probe_resp;
1018                 size_t hlen = offsetof(struct ieee80211_mgmt,
1019                                        u.probe_resp.variable);
1020                 proberesp = f->u.probe_resp.variable;
1021                 proberesp_len = bcon->probe_resp_len - hlen;
1022         }
1023         rc = _wil_cfg80211_merge_extra_ies(proberesp,
1024                                            proberesp_len,
1025                                            bcon->proberesp_ies,
1026                                            bcon->proberesp_ies_len,
1027                                            &ies, &len);
1028
1029         if (rc)
1030                 goto out;
1031
1032         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, len, ies);
1033         if (rc)
1034                 goto out;
1035
1036         if (bcon->assocresp_ies)
1037                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
1038                                 bcon->assocresp_ies_len, bcon->assocresp_ies);
1039         else
1040                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, len, ies);
1041 #if 0 /* to use beacon IE's, remove this #if 0 */
1042         if (rc)
1043                 goto out;
1044
1045         rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail);
1046 #endif
1047 out:
1048         kfree(ies);
1049         return rc;
1050 }
1051
1052 static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
1053                                   struct net_device *ndev,
1054                                   const u8 *ssid, size_t ssid_len, u32 privacy,
1055                                   int bi, u8 chan,
1056                                   struct cfg80211_beacon_data *bcon,
1057                                   u8 hidden_ssid, u32 pbss)
1058 {
1059         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1060         int rc;
1061         struct wireless_dev *wdev = ndev->ieee80211_ptr;
1062         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
1063         u8 is_go = (wdev->iftype == NL80211_IFTYPE_P2P_GO);
1064
1065         if (pbss)
1066                 wmi_nettype = WMI_NETTYPE_P2P;
1067
1068         wil_dbg_misc(wil, "%s: is_go=%d\n", __func__, is_go);
1069         if (is_go && !pbss) {
1070                 wil_err(wil, "%s: P2P GO must be in PBSS\n", __func__);
1071                 return -ENOTSUPP;
1072         }
1073
1074         wil_set_recovery_state(wil, fw_recovery_idle);
1075
1076         mutex_lock(&wil->mutex);
1077
1078         __wil_down(wil);
1079         rc = __wil_up(wil);
1080         if (rc)
1081                 goto out;
1082
1083         rc = wmi_set_ssid(wil, ssid_len, ssid);
1084         if (rc)
1085                 goto out;
1086
1087         rc = _wil_cfg80211_set_ies(wiphy, bcon);
1088         if (rc)
1089                 goto out;
1090
1091         wil->privacy = privacy;
1092         wil->channel = chan;
1093         wil->hidden_ssid = hidden_ssid;
1094         wil->pbss = pbss;
1095
1096         netif_carrier_on(ndev);
1097
1098         rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid, is_go);
1099         if (rc)
1100                 goto err_pcp_start;
1101
1102         rc = wil_bcast_init(wil);
1103         if (rc)
1104                 goto err_bcast;
1105
1106         goto out; /* success */
1107
1108 err_bcast:
1109         wmi_pcp_stop(wil);
1110 err_pcp_start:
1111         netif_carrier_off(ndev);
1112 out:
1113         mutex_unlock(&wil->mutex);
1114         return rc;
1115 }
1116
1117 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
1118                                       struct net_device *ndev,
1119                                       struct cfg80211_beacon_data *bcon)
1120 {
1121         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1122         int rc;
1123         u32 privacy = 0;
1124
1125         wil_dbg_misc(wil, "%s()\n", __func__);
1126         wil_print_bcon_data(bcon);
1127
1128         if (bcon->tail &&
1129             cfg80211_find_ie(WLAN_EID_RSN, bcon->tail,
1130                              bcon->tail_len))
1131                 privacy = 1;
1132
1133         /* in case privacy has changed, need to restart the AP */
1134         if (wil->privacy != privacy) {
1135                 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1136
1137                 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
1138                              wil->privacy, privacy);
1139
1140                 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
1141                                             wdev->ssid_len, privacy,
1142                                             wdev->beacon_interval,
1143                                             wil->channel, bcon,
1144                                             wil->hidden_ssid,
1145                                             wil->pbss);
1146         } else {
1147                 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1148         }
1149
1150         return rc;
1151 }
1152
1153 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
1154                                  struct net_device *ndev,
1155                                  struct cfg80211_ap_settings *info)
1156 {
1157         int rc;
1158         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1159         struct ieee80211_channel *channel = info->chandef.chan;
1160         struct cfg80211_beacon_data *bcon = &info->beacon;
1161         struct cfg80211_crypto_settings *crypto = &info->crypto;
1162         u8 hidden_ssid;
1163
1164         wil_dbg_misc(wil, "%s()\n", __func__);
1165
1166         if (!channel) {
1167                 wil_err(wil, "AP: No channel???\n");
1168                 return -EINVAL;
1169         }
1170
1171         switch (info->hidden_ssid) {
1172         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1173                 hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
1174                 break;
1175
1176         case NL80211_HIDDEN_SSID_ZERO_LEN:
1177                 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
1178                 break;
1179
1180         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1181                 hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
1182                 break;
1183
1184         default:
1185                 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid);
1186                 return -EOPNOTSUPP;
1187         }
1188         wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
1189                      channel->center_freq, info->privacy ? "secure" : "open");
1190         wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
1191                      info->privacy, info->auth_type);
1192         wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
1193                      info->hidden_ssid);
1194         wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
1195                      info->dtim_period);
1196         wil_dbg_misc(wil, "PBSS %d\n", info->pbss);
1197         print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
1198                              info->ssid, info->ssid_len);
1199         wil_print_bcon_data(bcon);
1200         wil_print_crypto(wil, crypto);
1201
1202         rc = _wil_cfg80211_start_ap(wiphy, ndev,
1203                                     info->ssid, info->ssid_len, info->privacy,
1204                                     info->beacon_interval, channel->hw_value,
1205                                     bcon, hidden_ssid, info->pbss);
1206
1207         return rc;
1208 }
1209
1210 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
1211                                 struct net_device *ndev)
1212 {
1213         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1214
1215         wil_dbg_misc(wil, "%s()\n", __func__);
1216
1217         netif_carrier_off(ndev);
1218         wil_set_recovery_state(wil, fw_recovery_idle);
1219
1220         mutex_lock(&wil->mutex);
1221
1222         wmi_pcp_stop(wil);
1223
1224         __wil_down(wil);
1225
1226         mutex_unlock(&wil->mutex);
1227
1228         return 0;
1229 }
1230
1231 static int wil_cfg80211_del_station(struct wiphy *wiphy,
1232                                     struct net_device *dev,
1233                                     struct station_del_parameters *params)
1234 {
1235         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1236
1237         wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
1238                      params->reason_code);
1239
1240         mutex_lock(&wil->mutex);
1241         wil6210_disconnect(wil, params->mac, params->reason_code, false);
1242         mutex_unlock(&wil->mutex);
1243
1244         return 0;
1245 }
1246
1247 /* probe_client handling */
1248 static void wil_probe_client_handle(struct wil6210_priv *wil,
1249                                     struct wil_probe_client_req *req)
1250 {
1251         struct net_device *ndev = wil_to_ndev(wil);
1252         struct wil_sta_info *sta = &wil->sta[req->cid];
1253         /* assume STA is alive if it is still connected,
1254          * else FW will disconnect it
1255          */
1256         bool alive = (sta->status == wil_sta_connected);
1257
1258         cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
1259 }
1260
1261 static struct list_head *next_probe_client(struct wil6210_priv *wil)
1262 {
1263         struct list_head *ret = NULL;
1264
1265         mutex_lock(&wil->probe_client_mutex);
1266
1267         if (!list_empty(&wil->probe_client_pending)) {
1268                 ret = wil->probe_client_pending.next;
1269                 list_del(ret);
1270         }
1271
1272         mutex_unlock(&wil->probe_client_mutex);
1273
1274         return ret;
1275 }
1276
1277 void wil_probe_client_worker(struct work_struct *work)
1278 {
1279         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1280                                                 probe_client_worker);
1281         struct wil_probe_client_req *req;
1282         struct list_head *lh;
1283
1284         while ((lh = next_probe_client(wil)) != NULL) {
1285                 req = list_entry(lh, struct wil_probe_client_req, list);
1286
1287                 wil_probe_client_handle(wil, req);
1288                 kfree(req);
1289         }
1290 }
1291
1292 void wil_probe_client_flush(struct wil6210_priv *wil)
1293 {
1294         struct wil_probe_client_req *req, *t;
1295
1296         wil_dbg_misc(wil, "%s()\n", __func__);
1297
1298         mutex_lock(&wil->probe_client_mutex);
1299
1300         list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
1301                 list_del(&req->list);
1302                 kfree(req);
1303         }
1304
1305         mutex_unlock(&wil->probe_client_mutex);
1306 }
1307
1308 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
1309                                      struct net_device *dev,
1310                                      const u8 *peer, u64 *cookie)
1311 {
1312         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1313         struct wil_probe_client_req *req;
1314         int cid = wil_find_cid(wil, peer);
1315
1316         wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1317
1318         if (cid < 0)
1319                 return -ENOLINK;
1320
1321         req = kzalloc(sizeof(*req), GFP_KERNEL);
1322         if (!req)
1323                 return -ENOMEM;
1324
1325         req->cid = cid;
1326         req->cookie = cid;
1327
1328         mutex_lock(&wil->probe_client_mutex);
1329         list_add_tail(&req->list, &wil->probe_client_pending);
1330         mutex_unlock(&wil->probe_client_mutex);
1331
1332         *cookie = req->cookie;
1333         queue_work(wil->wq_service, &wil->probe_client_worker);
1334         return 0;
1335 }
1336
1337 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1338                                    struct net_device *dev,
1339                                    struct bss_parameters *params)
1340 {
1341         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1342
1343         if (params->ap_isolate >= 0) {
1344                 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1345                              wil->ap_isolate, params->ap_isolate);
1346                 wil->ap_isolate = params->ap_isolate;
1347         }
1348
1349         return 0;
1350 }
1351
1352 static int wil_cfg80211_start_p2p_device(struct wiphy *wiphy,
1353                                          struct wireless_dev *wdev)
1354 {
1355         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1356
1357         wil_dbg_misc(wil, "%s: entered\n", __func__);
1358         wil->p2p.p2p_dev_started = 1;
1359         return 0;
1360 }
1361
1362 static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy,
1363                                          struct wireless_dev *wdev)
1364 {
1365         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1366         u8 started;
1367
1368         wil_dbg_misc(wil, "%s: entered\n", __func__);
1369         mutex_lock(&wil->mutex);
1370         started = wil_p2p_stop_discovery(wil);
1371         if (started && wil->scan_request) {
1372                 struct cfg80211_scan_info info = {
1373                         .aborted = true,
1374                 };
1375
1376                 cfg80211_scan_done(wil->scan_request, &info);
1377                 wil->scan_request = NULL;
1378                 wil->radio_wdev = wil->wdev;
1379         }
1380         mutex_unlock(&wil->mutex);
1381
1382         wil->p2p.p2p_dev_started = 0;
1383 }
1384
1385 static struct cfg80211_ops wil_cfg80211_ops = {
1386         .add_virtual_intf = wil_cfg80211_add_iface,
1387         .del_virtual_intf = wil_cfg80211_del_iface,
1388         .scan = wil_cfg80211_scan,
1389         .connect = wil_cfg80211_connect,
1390         .disconnect = wil_cfg80211_disconnect,
1391         .change_virtual_intf = wil_cfg80211_change_iface,
1392         .get_station = wil_cfg80211_get_station,
1393         .dump_station = wil_cfg80211_dump_station,
1394         .remain_on_channel = wil_remain_on_channel,
1395         .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1396         .mgmt_tx = wil_cfg80211_mgmt_tx,
1397         .set_monitor_channel = wil_cfg80211_set_channel,
1398         .add_key = wil_cfg80211_add_key,
1399         .del_key = wil_cfg80211_del_key,
1400         .set_default_key = wil_cfg80211_set_default_key,
1401         /* AP mode */
1402         .change_beacon = wil_cfg80211_change_beacon,
1403         .start_ap = wil_cfg80211_start_ap,
1404         .stop_ap = wil_cfg80211_stop_ap,
1405         .del_station = wil_cfg80211_del_station,
1406         .probe_client = wil_cfg80211_probe_client,
1407         .change_bss = wil_cfg80211_change_bss,
1408         /* P2P device */
1409         .start_p2p_device = wil_cfg80211_start_p2p_device,
1410         .stop_p2p_device = wil_cfg80211_stop_p2p_device,
1411 };
1412
1413 static void wil_wiphy_init(struct wiphy *wiphy)
1414 {
1415         wiphy->max_scan_ssids = 1;
1416         wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1417         wiphy->max_remain_on_channel_duration = WIL_MAX_ROC_DURATION_MS;
1418         wiphy->max_num_pmkids = 0 /* TODO: */;
1419         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1420                                  BIT(NL80211_IFTYPE_AP) |
1421                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
1422                                  BIT(NL80211_IFTYPE_P2P_GO) |
1423                                  BIT(NL80211_IFTYPE_P2P_DEVICE) |
1424                                  BIT(NL80211_IFTYPE_MONITOR);
1425         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1426                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1427                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1428         dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1429                 __func__, wiphy->flags);
1430         wiphy->probe_resp_offload =
1431                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1432                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1433                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1434
1435         wiphy->bands[NL80211_BAND_60GHZ] = &wil_band_60ghz;
1436
1437         /* TODO: figure this out */
1438         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1439
1440         wiphy->cipher_suites = wil_cipher_suites;
1441         wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1442         wiphy->mgmt_stypes = wil_mgmt_stypes;
1443         wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1444 }
1445
1446 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1447 {
1448         int rc = 0;
1449         struct wireless_dev *wdev;
1450
1451         dev_dbg(dev, "%s()\n", __func__);
1452
1453         wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1454         if (!wdev)
1455                 return ERR_PTR(-ENOMEM);
1456
1457         wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1458                                 sizeof(struct wil6210_priv));
1459         if (!wdev->wiphy) {
1460                 rc = -ENOMEM;
1461                 goto out;
1462         }
1463
1464         set_wiphy_dev(wdev->wiphy, dev);
1465         wil_wiphy_init(wdev->wiphy);
1466
1467         rc = wiphy_register(wdev->wiphy);
1468         if (rc < 0)
1469                 goto out_failed_reg;
1470
1471         return wdev;
1472
1473 out_failed_reg:
1474         wiphy_free(wdev->wiphy);
1475 out:
1476         kfree(wdev);
1477
1478         return ERR_PTR(rc);
1479 }
1480
1481 void wil_wdev_free(struct wil6210_priv *wil)
1482 {
1483         struct wireless_dev *wdev = wil_to_wdev(wil);
1484
1485         dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1486
1487         if (!wdev)
1488                 return;
1489
1490         wiphy_unregister(wdev->wiphy);
1491         wiphy_free(wdev->wiphy);
1492         kfree(wdev);
1493 }
1494
1495 void wil_p2p_wdev_free(struct wil6210_priv *wil)
1496 {
1497         struct wireless_dev *p2p_wdev;
1498
1499         mutex_lock(&wil->p2p_wdev_mutex);
1500         p2p_wdev = wil->p2p_wdev;
1501         if (p2p_wdev) {
1502                 wil->p2p_wdev = NULL;
1503                 wil->radio_wdev = wil_to_wdev(wil);
1504                 cfg80211_unregister_wdev(p2p_wdev);
1505                 kfree(p2p_wdev);
1506         }
1507         mutex_unlock(&wil->p2p_wdev_mutex);
1508 }