drivers/net/wireless/intel/iwlwifi/mvm/d3.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
   4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
   5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
   6  */
   7 #include <linux/etherdevice.h>
   8 #include <linux/ip.h>
   9 #include <linux/fs.h>
  10 #include <net/cfg80211.h>
  11 #include <net/ipv6.h>
  12 #include <net/tcp.h>
  13 #include <net/addrconf.h>
  14 #include "iwl-modparams.h"
  15 #include "fw-api.h"
  16 #include "mvm.h"
  17 #include "fw/img.h"
  18
  19 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
  20                             struct ieee80211_vif *vif,
  21                             struct cfg80211_gtk_rekey_data *data)
  22 {
  23         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
  24         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
  25
  26         mutex_lock(&mvm->mutex);
  27
  28         mvmvif->rekey_data.kek_len = data->kek_len;
  29         mvmvif->rekey_data.kck_len = data->kck_len;
  30         memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len);
  31         memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len);
  32         mvmvif->rekey_data.akm = data->akm & 0xFF;
  33         mvmvif->rekey_data.replay_ctr =
  34                 cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr));
  35         mvmvif->rekey_data.valid = true;
  36
  37         mutex_unlock(&mvm->mutex);
  38 }
  39
  40 #if IS_ENABLED(CONFIG_IPV6)
  41 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
  42                               struct ieee80211_vif *vif,
  43                               struct inet6_dev *idev)
  44 {
  45         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
  46         struct inet6_ifaddr *ifa;
  47         int idx = 0;
  48
  49         memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
  50
  51         read_lock_bh(&idev->lock);
  52         list_for_each_entry(ifa, &idev->addr_list, if_list) {
  53                 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
  54                 if (ifa->flags & IFA_F_TENTATIVE)
  55                         __set_bit(idx, mvmvif->tentative_addrs);
  56                 idx++;
  57                 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
  58                         break;
  59         }
  60         read_unlock_bh(&idev->lock);
  61
  62         mvmvif->num_target_ipv6_addrs = idx;
  63 }
  64 #endif
  65
  66 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
  67                                      struct ieee80211_vif *vif, int idx)
  68 {
  69         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
  70
  71         mvmvif->tx_key_idx = idx;
  72 }
  73
  74 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
  75 {
  76         int i;
  77
  78         for (i = 0; i < IWL_P1K_SIZE; i++)
  79                 out[i] = cpu_to_le16(p1k[i]);
  80 }
  81
  82 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
  83                                      struct iwl_mvm_key_pn *ptk_pn,
  84                                      struct ieee80211_key_seq *seq,
  85                                      int tid, int queues)
  86 {
  87         const u8 *ret = seq->ccmp.pn;
  88         int i;
  89
  90         /* get the PN from mac80211, used on the default queue */
  91         ieee80211_get_key_rx_seq(key, tid, seq);
  92
  93         /* and use the internal data for the other queues */
  94         for (i = 1; i < queues; i++) {
  95                 const u8 *tmp = ptk_pn->q[i].pn[tid];
  96
  97                 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
  98                         ret = tmp;
  99         }
 100
 101         return ret;
 102 }
 103
 104 struct wowlan_key_reprogram_data {
 105         bool error;
 106         int wep_key_idx;
 107 };
 108
 109 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
 110                                         struct ieee80211_vif *vif,
 111                                         struct ieee80211_sta *sta,
 112                                         struct ieee80211_key_conf *key,
 113                                         void *_data)
 114 {
 115         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 116         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 117         struct wowlan_key_reprogram_data *data = _data;
 118         int ret;
 119
 120         switch (key->cipher) {
 121         case WLAN_CIPHER_SUITE_WEP40:
 122         case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
 123                 struct {
 124                         struct iwl_mvm_wep_key_cmd wep_key_cmd;
 125                         struct iwl_mvm_wep_key wep_key;
 126                 } __packed wkc = {
 127                         .wep_key_cmd.mac_id_n_color =
 128                                 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 129                                                                 mvmvif->color)),
 130                         .wep_key_cmd.num_keys = 1,
 131                         /* firmware sets STA_KEY_FLG_WEP_13BYTES */
 132                         .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
 133                         .wep_key.key_index = key->keyidx,
 134                         .wep_key.key_size = key->keylen,
 135                 };
 136
 137                 /*
 138                  * This will fail -- the key functions don't set support
 139                  * pairwise WEP keys. However, that's better than silently
 140                  * failing WoWLAN. Or maybe not?
 141                  */
 142                 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
 143                         break;
 144
 145                 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
 146                 if (key->keyidx == mvmvif->tx_key_idx) {
 147                         /* TX key must be at offset 0 */
 148                         wkc.wep_key.key_offset = 0;
 149                 } else {
 150                         /* others start at 1 */
 151                         data->wep_key_idx++;
 152                         wkc.wep_key.key_offset = data->wep_key_idx;
 153                 }
 154
 155                 mutex_lock(&mvm->mutex);
 156                 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc);
 157                 data->error = ret != 0;
 158
 159                 mvm->ptk_ivlen = key->iv_len;
 160                 mvm->ptk_icvlen = key->icv_len;
 161                 mvm->gtk_ivlen = key->iv_len;
 162                 mvm->gtk_icvlen = key->icv_len;
 163                 mutex_unlock(&mvm->mutex);
 164
 165                 /* don't upload key again */
 166                 return;
 167         }
 168         default:
 169                 data->error = true;
 170                 return;
 171         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 172         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 173                 return;
 174         case WLAN_CIPHER_SUITE_AES_CMAC:
 175                 /*
 176                  * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
 177                  * but we also shouldn't abort suspend due to that. It does have
 178                  * support for the IGTK key renewal, but doesn't really use the
 179                  * IGTK for anything. This means we could spuriously wake up or
 180                  * be deauthenticated, but that was considered acceptable.
 181                  */
 182                 return;
 183         case WLAN_CIPHER_SUITE_TKIP:
 184         case WLAN_CIPHER_SUITE_CCMP:
 185         case WLAN_CIPHER_SUITE_GCMP:
 186         case WLAN_CIPHER_SUITE_GCMP_256:
 187                 break;
 188         }
 189
 190         mutex_lock(&mvm->mutex);
 191         /*
 192          * The D3 firmware hardcodes the key offset 0 as the key it
 193          * uses to transmit packets to the AP, i.e. the PTK.
 194          */
 195         if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
 196                 mvm->ptk_ivlen = key->iv_len;
 197                 mvm->ptk_icvlen = key->icv_len;
 198                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
 199         } else {
 200                 /*
 201                  * firmware only supports TSC/RSC for a single key,
 202                  * so if there are multiple keep overwriting them
 203                  * with new ones -- this relies on mac80211 doing
 204                  * list_add_tail().
 205                  */
 206                 mvm->gtk_ivlen = key->iv_len;
 207                 mvm->gtk_icvlen = key->icv_len;
 208                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
 209         }
 210         mutex_unlock(&mvm->mutex);
 211         data->error = ret != 0;
 212 }
 213
 214 struct wowlan_key_rsc_tsc_data {
 215         struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
 216         bool have_rsc_tsc;
 217 };
 218
 219 static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw,
 220                                             struct ieee80211_vif *vif,
 221                                             struct ieee80211_sta *sta,
 222                                             struct ieee80211_key_conf *key,
 223                                             void *_data)
 224 {
 225         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 226         struct wowlan_key_rsc_tsc_data *data = _data;
 227         struct aes_sc *aes_sc;
 228         struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
 229         struct ieee80211_key_seq seq;
 230         int i;
 231
 232         switch (key->cipher) {
 233         default:
 234                 break;
 235         case WLAN_CIPHER_SUITE_TKIP:
 236                 if (sta) {
 237                         u64 pn64;
 238
 239                         tkip_sc =
 240                            data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc;
 241                         tkip_tx_sc =
 242                                 &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc;
 243
 244                         pn64 = atomic64_read(&key->tx_pn);
 245                         tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
 246                         tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
 247                 } else {
 248                         tkip_sc =
 249                           data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
 250                 }
 251
 252                 /*
 253                  * For non-QoS this relies on the fact that both the uCode and
 254                  * mac80211 use TID 0 (as they need to to avoid replay attacks)
 255                  * for checking the IV in the frames.
 256                  */
 257                 for (i = 0; i < IWL_NUM_RSC; i++) {
 258                         ieee80211_get_key_rx_seq(key, i, &seq);
 259                         tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
 260                         tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
 261                 }
 262
 263                 data->have_rsc_tsc = true;
 264                 break;
 265         case WLAN_CIPHER_SUITE_CCMP:
 266         case WLAN_CIPHER_SUITE_GCMP:
 267         case WLAN_CIPHER_SUITE_GCMP_256:
 268                 if (sta) {
 269                         struct aes_sc *aes_tx_sc;
 270                         u64 pn64;
 271
 272                         aes_sc =
 273                            data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc;
 274                         aes_tx_sc =
 275                                 &data->rsc_tsc->params.all_tsc_rsc.aes.tsc;
 276
 277                         pn64 = atomic64_read(&key->tx_pn);
 278                         aes_tx_sc->pn = cpu_to_le64(pn64);
 279                 } else {
 280                         aes_sc =
 281                            data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
 282                 }
 283
 284                 /*
 285                  * For non-QoS this relies on the fact that both the uCode and
 286                  * mac80211/our RX code use TID 0 for checking the PN.
 287                  */
 288                 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
 289                         struct iwl_mvm_sta *mvmsta;
 290                         struct iwl_mvm_key_pn *ptk_pn;
 291                         const u8 *pn;
 292
 293                         mvmsta = iwl_mvm_sta_from_mac80211(sta);
 294                         rcu_read_lock();
 295                         ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
 296                         if (WARN_ON(!ptk_pn)) {
 297                                 rcu_read_unlock();
 298                                 break;
 299                         }
 300
 301                         for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
 302                                 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
 303                                                 mvm->trans->num_rx_queues);
 304                                 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
 305                                                            ((u64)pn[4] << 8) |
 306                                                            ((u64)pn[3] << 16) |
 307                                                            ((u64)pn[2] << 24) |
 308                                                            ((u64)pn[1] << 32) |
 309                                                            ((u64)pn[0] << 40));
 310                         }
 311
 312                         rcu_read_unlock();
 313                 } else {
 314                         for (i = 0; i < IWL_NUM_RSC; i++) {
 315                                 u8 *pn = seq.ccmp.pn;
 316
 317                                 ieee80211_get_key_rx_seq(key, i, &seq);
 318                                 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
 319                                                            ((u64)pn[4] << 8) |
 320                                                            ((u64)pn[3] << 16) |
 321                                                            ((u64)pn[2] << 24) |
 322                                                            ((u64)pn[1] << 32) |
 323                                                            ((u64)pn[0] << 40));
 324                         }
 325                 }
 326                 data->have_rsc_tsc = true;
 327                 break;
 328         }
 329 }
 330
 331 struct wowlan_key_rsc_v5_data {
 332         struct iwl_wowlan_rsc_tsc_params_cmd *rsc;
 333         bool have_rsc;
 334         int gtks;
 335         int gtk_ids[4];
 336 };
 337
 338 static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw,
 339                                            struct ieee80211_vif *vif,
 340                                            struct ieee80211_sta *sta,
 341                                            struct ieee80211_key_conf *key,
 342                                            void *_data)
 343 {
 344         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 345         struct wowlan_key_rsc_v5_data *data = _data;
 346         struct ieee80211_key_seq seq;
 347         __le64 *rsc;
 348         int i;
 349
 350         /* only for ciphers that can be PTK/GTK */
 351         switch (key->cipher) {
 352         default:
 353                 return;
 354         case WLAN_CIPHER_SUITE_TKIP:
 355         case WLAN_CIPHER_SUITE_CCMP:
 356         case WLAN_CIPHER_SUITE_GCMP:
 357         case WLAN_CIPHER_SUITE_GCMP_256:
 358                 break;
 359         }
 360
 361         if (sta) {
 362                 rsc = data->rsc->ucast_rsc;
 363         } else {
 364                 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
 365                         return;
 366                 data->gtk_ids[data->gtks] = key->keyidx;
 367                 rsc = data->rsc->mcast_rsc[data->gtks % 2];
 368                 if (WARN_ON(key->keyidx >=
 369                                 ARRAY_SIZE(data->rsc->mcast_key_id_map)))
 370                         return;
 371                 data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2;
 372                 if (data->gtks >= 2) {
 373                         int prev = data->gtks - 2;
 374                         int prev_idx = data->gtk_ids[prev];
 375
 376                         data->rsc->mcast_key_id_map[prev_idx] =
 377                                 IWL_MCAST_KEY_MAP_INVALID;
 378                 }
 379                 data->gtks++;
 380         }
 381
 382         switch (key->cipher) {
 383         default:
 384                 WARN_ON(1);
 385                 break;
 386         case WLAN_CIPHER_SUITE_TKIP:
 387
 388                 /*
 389                  * For non-QoS this relies on the fact that both the uCode and
 390                  * mac80211 use TID 0 (as they need to to avoid replay attacks)
 391                  * for checking the IV in the frames.
 392                  */
 393                 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
 394                         ieee80211_get_key_rx_seq(key, i, &seq);
 395
 396                         rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) |
 397                                              seq.tkip.iv16);
 398                 }
 399
 400                 data->have_rsc = true;
 401                 break;
 402         case WLAN_CIPHER_SUITE_CCMP:
 403         case WLAN_CIPHER_SUITE_GCMP:
 404         case WLAN_CIPHER_SUITE_GCMP_256:
 405                 /*
 406                  * For non-QoS this relies on the fact that both the uCode and
 407                  * mac80211/our RX code use TID 0 for checking the PN.
 408                  */
 409                 if (sta) {
 410                         struct iwl_mvm_sta *mvmsta;
 411                         struct iwl_mvm_key_pn *ptk_pn;
 412                         const u8 *pn;
 413
 414                         mvmsta = iwl_mvm_sta_from_mac80211(sta);
 415                         rcu_read_lock();
 416                         ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
 417                         if (WARN_ON(!ptk_pn)) {
 418                                 rcu_read_unlock();
 419                                 break;
 420                         }
 421
 422                         for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
 423                                 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
 424                                                 mvm->trans->num_rx_queues);
 425                                 rsc[i] = cpu_to_le64((u64)pn[5] |
 426                                                      ((u64)pn[4] << 8) |
 427                                                      ((u64)pn[3] << 16) |
 428                                                      ((u64)pn[2] << 24) |
 429                                                      ((u64)pn[1] << 32) |
 430                                                      ((u64)pn[0] << 40));
 431                         }
 432
 433                         rcu_read_unlock();
 434                 } else {
 435                         for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
 436                                 u8 *pn = seq.ccmp.pn;
 437
 438                                 ieee80211_get_key_rx_seq(key, i, &seq);
 439                                 rsc[i] = cpu_to_le64((u64)pn[5] |
 440                                                      ((u64)pn[4] << 8) |
 441                                                      ((u64)pn[3] << 16) |
 442                                                      ((u64)pn[2] << 24) |
 443                                                      ((u64)pn[1] << 32) |
 444                                                      ((u64)pn[0] << 40));
 445                         }
 446                 }
 447                 data->have_rsc = true;
 448                 break;
 449         }
 450 }
 451
 452 static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm,
 453                                          struct ieee80211_vif *vif,
 454                                          struct iwl_mvm_vif_link_info *mvm_link)
 455 {
 456         int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM,
 457                                         IWL_FW_CMD_VER_UNKNOWN);
 458         int ret;
 459
 460         if (ver == 5) {
 461                 struct wowlan_key_rsc_v5_data data = {};
 462                 int i;
 463
 464                 data.rsc = kzalloc(sizeof(*data.rsc), GFP_KERNEL);
 465                 if (!data.rsc)
 466                         return -ENOMEM;
 467
 468                 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
 469                         data.rsc->mcast_key_id_map[i] =
 470                                 IWL_MCAST_KEY_MAP_INVALID;
 471                 data.rsc->sta_id = cpu_to_le32(mvm_link->ap_sta_id);
 472
 473                 ieee80211_iter_keys(mvm->hw, vif,
 474                                     iwl_mvm_wowlan_get_rsc_v5_data,
 475                                     &data);
 476
 477                 if (data.have_rsc)
 478                         ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
 479                                                    CMD_ASYNC, sizeof(*data.rsc),
 480                                                    data.rsc);
 481                 else
 482                         ret = 0;
 483                 kfree(data.rsc);
 484         } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
 485                 struct wowlan_key_rsc_tsc_data data = {};
 486                 int size;
 487
 488                 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
 489                 if (!data.rsc_tsc)
 490                         return -ENOMEM;
 491
 492                 if (ver == 4) {
 493                         size = sizeof(*data.rsc_tsc);
 494                         data.rsc_tsc->sta_id =
 495                                 cpu_to_le32(mvm_link->ap_sta_id);
 496                 } else {
 497                         /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
 498                         size = sizeof(data.rsc_tsc->params);
 499                 }
 500
 501                 ieee80211_iter_keys(mvm->hw, vif,
 502                                     iwl_mvm_wowlan_get_rsc_tsc_data,
 503                                     &data);
 504
 505                 if (data.have_rsc_tsc)
 506                         ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
 507                                                    CMD_ASYNC, size,
 508                                                    data.rsc_tsc);
 509                 else
 510                         ret = 0;
 511                 kfree(data.rsc_tsc);
 512         } else {
 513                 ret = 0;
 514                 WARN_ON_ONCE(1);
 515         }
 516
 517         return ret;
 518 }
 519
 520 struct wowlan_key_tkip_data {
 521         struct iwl_wowlan_tkip_params_cmd tkip;
 522         bool have_tkip_keys;
 523 };
 524
 525 static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw,
 526                                          struct ieee80211_vif *vif,
 527                                          struct ieee80211_sta *sta,
 528                                          struct ieee80211_key_conf *key,
 529                                          void *_data)
 530 {
 531         struct wowlan_key_tkip_data *data = _data;
 532         struct iwl_p1k_cache *rx_p1ks;
 533         u8 *rx_mic_key;
 534         struct ieee80211_key_seq seq;
 535         u32 cur_rx_iv32 = 0;
 536         u16 p1k[IWL_P1K_SIZE];
 537         int i;
 538
 539         switch (key->cipher) {
 540         default:
 541                 break;
 542         case WLAN_CIPHER_SUITE_TKIP:
 543                 if (sta) {
 544                         u64 pn64;
 545
 546                         rx_p1ks = data->tkip.rx_uni;
 547
 548                         pn64 = atomic64_read(&key->tx_pn);
 549
 550                         ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
 551                                                   p1k);
 552                         iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k);
 553
 554                         memcpy(data->tkip.mic_keys.tx,
 555                                &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
 556                                IWL_MIC_KEY_SIZE);
 557
 558                         rx_mic_key = data->tkip.mic_keys.rx_unicast;
 559                 } else {
 560                         rx_p1ks = data->tkip.rx_multi;
 561                         rx_mic_key = data->tkip.mic_keys.rx_mcast;
 562                 }
 563
 564                 for (i = 0; i < IWL_NUM_RSC; i++) {
 565                         ieee80211_get_key_rx_seq(key, i, &seq);
 566                         /* wrapping isn't allowed, AP must rekey */
 567                         if (seq.tkip.iv32 > cur_rx_iv32)
 568                                 cur_rx_iv32 = seq.tkip.iv32;
 569                 }
 570
 571                 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
 572                                           cur_rx_iv32, p1k);
 573                 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
 574                 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
 575                                           cur_rx_iv32 + 1, p1k);
 576                 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
 577
 578                 memcpy(rx_mic_key,
 579                        &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
 580                        IWL_MIC_KEY_SIZE);
 581
 582                 data->have_tkip_keys = true;
 583                 break;
 584         }
 585 }
 586
 587 struct wowlan_key_gtk_type_iter {
 588         struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
 589 };
 590
 591 static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
 592                                          struct ieee80211_vif *vif,
 593                                          struct ieee80211_sta *sta,
 594                                          struct ieee80211_key_conf *key,
 595                                          void *_data)
 596 {
 597         struct wowlan_key_gtk_type_iter *data = _data;
 598         __le32 *cipher = NULL;
 599
 600         if (key->keyidx == 4 || key->keyidx == 5)
 601                 cipher = &data->kek_kck_cmd->igtk_cipher;
 602         if (key->keyidx == 6 || key->keyidx == 7)
 603                 cipher = &data->kek_kck_cmd->bigtk_cipher;
 604
 605         switch (key->cipher) {
 606         default:
 607                 return;
 608         case WLAN_CIPHER_SUITE_TKIP:
 609                 if (!sta)
 610                         data->kek_kck_cmd->gtk_cipher =
 611                                 cpu_to_le32(STA_KEY_FLG_TKIP);
 612                 return;
 613         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 614         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 615                 if (cipher)
 616                         *cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
 617                 return;
 618         case WLAN_CIPHER_SUITE_AES_CMAC:
 619         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 620                 if (cipher)
 621                         *cipher = cpu_to_le32(STA_KEY_FLG_CCM);
 622                 return;
 623         case WLAN_CIPHER_SUITE_CCMP:
 624                 if (!sta)
 625                         data->kek_kck_cmd->gtk_cipher =
 626                                 cpu_to_le32(STA_KEY_FLG_CCM);
 627                 return;
 628         case WLAN_CIPHER_SUITE_GCMP:
 629         case WLAN_CIPHER_SUITE_GCMP_256:
 630                 if (!sta)
 631                         data->kek_kck_cmd->gtk_cipher =
 632                                 cpu_to_le32(STA_KEY_FLG_GCMP);
 633                 return;
 634         }
 635 }
 636
 637 static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
 638                                     struct cfg80211_wowlan *wowlan)
 639 {
 640         struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
 641         struct iwl_host_cmd cmd = {
 642                 .id = WOWLAN_PATTERNS,
 643                 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
 644         };
 645         int i, err;
 646
 647         if (!wowlan->n_patterns)
 648                 return 0;
 649
 650         cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
 651
 652         pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
 653         if (!pattern_cmd)
 654                 return -ENOMEM;
 655
 656         pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
 657
 658         for (i = 0; i < wowlan->n_patterns; i++) {
 659                 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
 660
 661                 memcpy(&pattern_cmd->patterns[i].mask,
 662                        wowlan->patterns[i].mask, mask_len);
 663                 memcpy(&pattern_cmd->patterns[i].pattern,
 664                        wowlan->patterns[i].pattern,
 665                        wowlan->patterns[i].pattern_len);
 666                 pattern_cmd->patterns[i].mask_size = mask_len;
 667                 pattern_cmd->patterns[i].pattern_size =
 668                         wowlan->patterns[i].pattern_len;
 669         }
 670
 671         cmd.data[0] = pattern_cmd;
 672         err = iwl_mvm_send_cmd(mvm, &cmd);
 673         kfree(pattern_cmd);
 674         return err;
 675 }
 676
 677 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
 678                                  struct iwl_mvm_vif_link_info *mvm_link,
 679                                  struct cfg80211_wowlan *wowlan)
 680 {
 681         struct iwl_wowlan_patterns_cmd *pattern_cmd;
 682         struct iwl_host_cmd cmd = {
 683                 .id = WOWLAN_PATTERNS,
 684                 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
 685         };
 686         int i, err;
 687         int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
 688                                         IWL_FW_CMD_VER_UNKNOWN);
 689
 690         if (!wowlan->n_patterns)
 691                 return 0;
 692
 693         cmd.len[0] = sizeof(*pattern_cmd) +
 694                 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
 695
 696         pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
 697         if (!pattern_cmd)
 698                 return -ENOMEM;
 699
 700         pattern_cmd->n_patterns = wowlan->n_patterns;
 701         if (ver >= 3)
 702                 pattern_cmd->sta_id = mvm_link->ap_sta_id;
 703
 704         for (i = 0; i < wowlan->n_patterns; i++) {
 705                 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
 706
 707                 pattern_cmd->patterns[i].pattern_type =
 708                         WOWLAN_PATTERN_TYPE_BITMASK;
 709
 710                 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
 711                        wowlan->patterns[i].mask, mask_len);
 712                 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
 713                        wowlan->patterns[i].pattern,
 714                        wowlan->patterns[i].pattern_len);
 715                 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
 716                 pattern_cmd->patterns[i].u.bitmask.pattern_size =
 717                         wowlan->patterns[i].pattern_len;
 718         }
 719
 720         cmd.data[0] = pattern_cmd;
 721         err = iwl_mvm_send_cmd(mvm, &cmd);
 722         kfree(pattern_cmd);
 723         return err;
 724 }
 725
 726 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 727                                 struct ieee80211_sta *ap_sta)
 728 {
 729         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 730         struct ieee80211_chanctx_conf *ctx;
 731         u8 chains_static, chains_dynamic;
 732         struct cfg80211_chan_def chandef, ap_def;
 733         int ret, i;
 734         struct iwl_binding_cmd_v1 binding_cmd = {};
 735         struct iwl_time_quota_cmd quota_cmd = {};
 736         struct iwl_time_quota_data *quota;
 737         u32 status;
 738
 739         if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm) ||
 740                          ieee80211_vif_is_mld(vif)))
 741                 return -EINVAL;
 742
 743         /* add back the PHY */
 744         if (WARN_ON(!mvmvif->deflink.phy_ctxt))
 745                 return -EINVAL;
 746
 747         rcu_read_lock();
 748         ctx = rcu_dereference(vif->bss_conf.chanctx_conf);
 749         if (WARN_ON(!ctx)) {
 750                 rcu_read_unlock();
 751                 return -EINVAL;
 752         }
 753         chandef = ctx->def;
 754         ap_def = ctx->ap;
 755         chains_static = ctx->rx_chains_static;
 756         chains_dynamic = ctx->rx_chains_dynamic;
 757         rcu_read_unlock();
 758
 759         ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef,
 760                                    &ap_def, chains_static, chains_dynamic);
 761         if (ret)
 762                 return ret;
 763
 764         /* add back the MAC */
 765         mvmvif->uploaded = false;
 766
 767         if (WARN_ON(!vif->cfg.assoc))
 768                 return -EINVAL;
 769
 770         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
 771         if (ret)
 772                 return ret;
 773
 774         /* add back binding - XXX refactor? */
 775         binding_cmd.id_and_color =
 776                 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
 777                                                 mvmvif->deflink.phy_ctxt->color));
 778         binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
 779         binding_cmd.phy =
 780                 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
 781                                                 mvmvif->deflink.phy_ctxt->color));
 782         binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 783                                                               mvmvif->color));
 784         for (i = 1; i < MAX_MACS_IN_BINDING; i++)
 785                 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
 786
 787         status = 0;
 788         ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
 789                                           IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
 790                                           &status);
 791         if (ret) {
 792                 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
 793                 return ret;
 794         }
 795
 796         if (status) {
 797                 IWL_ERR(mvm, "Binding command failed: %u\n", status);
 798                 return -EIO;
 799         }
 800
 801         ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
 802         if (ret)
 803                 return ret;
 804         rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
 805                            ap_sta);
 806
 807         ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
 808         if (ret)
 809                 return ret;
 810
 811         /* and some quota */
 812         quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, 0);
 813         quota->id_and_color =
 814                 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
 815                                                 mvmvif->deflink.phy_ctxt->color));
 816         quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
 817         quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
 818
 819         for (i = 1; i < MAX_BINDINGS; i++) {
 820                 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, i);
 821                 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
 822         }
 823
 824         ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
 825                                    iwl_mvm_quota_cmd_size(mvm), &quota_cmd);
 826         if (ret)
 827                 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
 828
 829         if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false))
 830                 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
 831
 832         return 0;
 833 }
 834
 835 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
 836                                        struct ieee80211_vif *vif)
 837 {
 838         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 839         struct iwl_nonqos_seq_query_cmd query_cmd = {
 840                 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
 841                 .mac_id_n_color =
 842                         cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 843                                                         mvmvif->color)),
 844         };
 845         struct iwl_host_cmd cmd = {
 846                 .id = NON_QOS_TX_COUNTER_CMD,
 847                 .flags = CMD_WANT_SKB,
 848         };
 849         int err;
 850         u32 size;
 851
 852         cmd.data[0] = &query_cmd;
 853         cmd.len[0] = sizeof(query_cmd);
 854
 855         err = iwl_mvm_send_cmd(mvm, &cmd);
 856         if (err)
 857                 return err;
 858
 859         size = iwl_rx_packet_payload_len(cmd.resp_pkt);
 860         if (size < sizeof(__le16)) {
 861                 err = -EINVAL;
 862         } else {
 863                 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
 864                 /* firmware returns next, not last-used seqno */
 865                 err = (u16) (err - 0x10);
 866         }
 867
 868         iwl_free_resp(&cmd);
 869         return err;
 870 }
 871
 872 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 873 {
 874         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 875         struct iwl_nonqos_seq_query_cmd query_cmd = {
 876                 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
 877                 .mac_id_n_color =
 878                         cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 879                                                         mvmvif->color)),
 880                 .value = cpu_to_le16(mvmvif->seqno),
 881         };
 882
 883         /* return if called during restart, not resume from D3 */
 884         if (!mvmvif->seqno_valid)
 885                 return;
 886
 887         mvmvif->seqno_valid = false;
 888
 889         if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
 890                                  sizeof(query_cmd), &query_cmd))
 891                 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
 892 }
 893
 894 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
 895 {
 896         iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
 897
 898         iwl_mvm_stop_device(mvm);
 899         /*
 900          * Set the HW restart bit -- this is mostly true as we're
 901          * going to load new firmware and reprogram that, though
 902          * the reprogramming is going to be manual to avoid adding
 903          * all the MACs that aren't support.
 904          * We don't have to clear up everything though because the
 905          * reprogramming is manual. When we resume, we'll actually
 906          * go through a proper restart sequence again to switch
 907          * back to the runtime firmware image.
 908          */
 909         set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
 910
 911         /* the fw is reset, so all the keys are cleared */
 912         memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
 913
 914         mvm->ptk_ivlen = 0;
 915         mvm->ptk_icvlen = 0;
 916         mvm->ptk_ivlen = 0;
 917         mvm->ptk_icvlen = 0;
 918
 919         return iwl_mvm_load_d3_fw(mvm);
 920 }
 921
 922 static int
 923 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
 924                           struct cfg80211_wowlan *wowlan,
 925                           struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd,
 926                           struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
 927                           struct ieee80211_sta *ap_sta)
 928 {
 929         struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
 930
 931         /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
 932
 933         wowlan_config_cmd->is_11n_connection =
 934                                         ap_sta->deflink.ht_cap.ht_supported;
 935         wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
 936                 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
 937
 938         if (ap_sta->mfp)
 939                 wowlan_config_cmd->flags |= IS_11W_ASSOC;
 940
 941         if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
 942                 /* Query the last used seqno and set it */
 943                 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
 944
 945                 if (ret < 0)
 946                         return ret;
 947
 948                 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
 949         }
 950
 951         if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 7)
 952                 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
 953
 954         if (wowlan->disconnect)
 955                 wowlan_config_cmd->wakeup_filter |=
 956                         cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
 957                                     IWL_WOWLAN_WAKEUP_LINK_CHANGE);
 958         if (wowlan->magic_pkt)
 959                 wowlan_config_cmd->wakeup_filter |=
 960                         cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
 961         if (wowlan->gtk_rekey_failure)
 962                 wowlan_config_cmd->wakeup_filter |=
 963                         cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
 964         if (wowlan->eap_identity_req)
 965                 wowlan_config_cmd->wakeup_filter |=
 966                         cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
 967         if (wowlan->four_way_handshake)
 968                 wowlan_config_cmd->wakeup_filter |=
 969                         cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
 970         if (wowlan->n_patterns)
 971                 wowlan_config_cmd->wakeup_filter |=
 972                         cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
 973
 974         if (wowlan->rfkill_release)
 975                 wowlan_config_cmd->wakeup_filter |=
 976                         cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
 977
 978         if (wowlan->tcp) {
 979                 /*
 980                  * Set the "link change" (really "link lost") flag as well
 981                  * since that implies losing the TCP connection.
 982                  */
 983                 wowlan_config_cmd->wakeup_filter |=
 984                         cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
 985                                     IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
 986                                     IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
 987                                     IWL_WOWLAN_WAKEUP_LINK_CHANGE);
 988         }
 989
 990         if (wowlan->any) {
 991                 wowlan_config_cmd->wakeup_filter |=
 992                         cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
 993                                     IWL_WOWLAN_WAKEUP_LINK_CHANGE |
 994                                     IWL_WOWLAN_WAKEUP_RX_FRAME |
 995                                     IWL_WOWLAN_WAKEUP_BCN_FILTERING);
 996         }
 997
 998         return 0;
 999 }
1000
1001 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
1002                                             struct ieee80211_vif *vif,
1003                                             struct iwl_mvm_vif_link_info *mvm_link)
1004 {
1005         bool unified = fw_has_capa(&mvm->fw->ucode_capa,
1006                                    IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1007         struct wowlan_key_reprogram_data key_data = {};
1008         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1009         int ret;
1010         u8 cmd_ver;
1011         size_t cmd_size;
1012
1013         if (!unified) {
1014                 /*
1015                  * if we have to configure keys, call ieee80211_iter_keys(),
1016                  * as we need non-atomic context in order to take the
1017                  * required locks.
1018                  */
1019                 /*
1020                  * Note that currently we don't use CMD_ASYNC in the iterator.
1021                  * In case of key_data.configure_keys, all the configured
1022                  * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1023                  * take care of locking/unlocking mvm->mutex.
1024                  */
1025                 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1026                                     &key_data);
1027
1028                 if (key_data.error)
1029                         return -EIO;
1030         }
1031
1032         ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link);
1033         if (ret)
1034                 return ret;
1035
1036         if (!fw_has_api(&mvm->fw->ucode_capa,
1037                         IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
1038                 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
1039                                                 IWL_FW_CMD_VER_UNKNOWN);
1040                 struct wowlan_key_tkip_data tkip_data = {};
1041                 int size;
1042
1043                 if (ver == 2) {
1044                         size = sizeof(tkip_data.tkip);
1045                         tkip_data.tkip.sta_id =
1046                                 cpu_to_le32(mvm_link->ap_sta_id);
1047                 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1048                         size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1049                 } else {
1050                         WARN_ON_ONCE(1);
1051                         return -EINVAL;
1052                 }
1053
1054                 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1055                                     &tkip_data);
1056
1057                 if (tkip_data.have_tkip_keys) {
1058                         /* send relevant data according to CMD version */
1059                         ret = iwl_mvm_send_cmd_pdu(mvm,
1060                                                    WOWLAN_TKIP_PARAM,
1061                                                    CMD_ASYNC, size,
1062                                                    &tkip_data.tkip);
1063                         if (ret)
1064                                 return ret;
1065                 }
1066         }
1067
1068         /* configure rekey data only if offloaded rekey is supported (d3) */
1069         if (mvmvif->rekey_data.valid) {
1070                 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1071                 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1072                         &kek_kck_cmd;
1073                 struct wowlan_key_gtk_type_iter gtk_type_data = {
1074                         .kek_kck_cmd = _kek_kck_cmd,
1075                 };
1076
1077                 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1078                                                 WOWLAN_KEK_KCK_MATERIAL,
1079                                                 IWL_FW_CMD_VER_UNKNOWN);
1080                 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
1081                             cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1082                         return -EINVAL;
1083
1084                 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1085                                     &gtk_type_data);
1086
1087                 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1088                        mvmvif->rekey_data.kck_len);
1089                 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
1090                 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1091                        mvmvif->rekey_data.kek_len);
1092                 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
1093                 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1094                 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
1095                 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id);
1096
1097                 if (cmd_ver == 4) {
1098                         cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1099                 } else {
1100                         if (cmd_ver == 3)
1101                                 cmd_size =
1102                                         sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1103                         else
1104                                 cmd_size =
1105                                         sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1106                         /* skip the sta_id at the beginning */
1107                         _kek_kck_cmd = (void *)
1108                                 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
1109                 }
1110
1111                 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1112                                  mvmvif->rekey_data.akm);
1113
1114                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1115                                            CMD_ASYNC, cmd_size, _kek_kck_cmd);
1116                 if (ret)
1117                         return ret;
1118         }
1119
1120         return 0;
1121 }
1122
1123 static int
1124 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1125                       struct cfg80211_wowlan *wowlan,
1126                       struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd_v6,
1127                       struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1128                       struct iwl_mvm_vif_link_info *mvm_link,
1129                       struct ieee80211_sta *ap_sta)
1130 {
1131         int ret;
1132         bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1133                                          IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1134
1135         mvm->offload_tid = wowlan_config_cmd_v6->offloading_tid;
1136
1137         if (!unified_image) {
1138                 ret = iwl_mvm_switch_to_d3(mvm);
1139                 if (ret)
1140                         return ret;
1141
1142                 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1143                 if (ret)
1144                         return ret;
1145         }
1146
1147         ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link);
1148         if (ret)
1149                 return ret;
1150
1151         if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) > 6) {
1152                 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1153                         .wakeup_filter = wowlan_config_cmd_v6->wakeup_filter,
1154                         .wowlan_ba_teardown_tids =
1155                                 wowlan_config_cmd_v6->wowlan_ba_teardown_tids,
1156                         .is_11n_connection =
1157                                 wowlan_config_cmd_v6->is_11n_connection,
1158                         .offloading_tid = wowlan_config_cmd_v6->offloading_tid,
1159                         .flags = wowlan_config_cmd_v6->flags,
1160                         .sta_id = wowlan_config_cmd_v6->sta_id,
1161                 };
1162
1163                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1164                                            sizeof(wowlan_config_cmd),
1165                                            &wowlan_config_cmd);
1166         } else {
1167                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1168                                            sizeof(*wowlan_config_cmd_v6),
1169                                            wowlan_config_cmd_v6);
1170         }
1171         if (ret)
1172                 return ret;
1173
1174         if (fw_has_api(&mvm->fw->ucode_capa,
1175                        IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
1176                 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan);
1177         else
1178                 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
1179         if (ret)
1180                 return ret;
1181
1182         return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0,
1183                                           mvm_link->ap_sta_id);
1184 }
1185
1186 static int
1187 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1188                          struct cfg80211_wowlan *wowlan,
1189                          struct cfg80211_sched_scan_request *nd_config,
1190                          struct ieee80211_vif *vif)
1191 {
1192         int ret;
1193         bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1194                                          IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1195
1196         if (!unified_image) {
1197                 ret = iwl_mvm_switch_to_d3(mvm);
1198                 if (ret)
1199                         return ret;
1200         } else {
1201                 /* In theory, we wouldn't have to stop a running sched
1202                  * scan in order to start another one (for
1203                  * net-detect).  But in practice this doesn't seem to
1204                  * work properly, so stop any running sched_scan now.
1205                  */
1206                 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1207                 if (ret)
1208                         return ret;
1209         }
1210
1211         ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1212                                        IWL_MVM_SCAN_NETDETECT);
1213         if (ret)
1214                 return ret;
1215
1216         if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1217                 return -EBUSY;
1218
1219         /* save the sched scan matchsets... */
1220         if (nd_config->n_match_sets) {
1221                 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1222                                              sizeof(*nd_config->match_sets) *
1223                                              nd_config->n_match_sets,
1224                                              GFP_KERNEL);
1225                 if (mvm->nd_match_sets)
1226                         mvm->n_nd_match_sets = nd_config->n_match_sets;
1227         }
1228
1229         /* ...and the sched scan channels for later reporting */
1230         mvm->nd_channels = kmemdup(nd_config->channels,
1231                                    sizeof(*nd_config->channels) *
1232                                    nd_config->n_channels,
1233                                    GFP_KERNEL);
1234         if (mvm->nd_channels)
1235                 mvm->n_nd_channels = nd_config->n_channels;
1236
1237         return 0;
1238 }
1239
1240 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1241 {
1242         kfree(mvm->nd_match_sets);
1243         mvm->nd_match_sets = NULL;
1244         mvm->n_nd_match_sets = 0;
1245         kfree(mvm->nd_channels);
1246         mvm->nd_channels = NULL;
1247         mvm->n_nd_channels = 0;
1248 }
1249
1250 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1251                              struct cfg80211_wowlan *wowlan,
1252                              bool test)
1253 {
1254         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1255         struct ieee80211_vif *vif = NULL;
1256         struct iwl_mvm_vif *mvmvif = NULL;
1257         struct ieee80211_sta *ap_sta = NULL;
1258         struct iwl_mvm_vif_link_info *mvm_link;
1259         struct iwl_d3_manager_config d3_cfg_cmd_data = {
1260                 /*
1261                  * Program the minimum sleep time to 10 seconds, as many
1262                  * platforms have issues processing a wakeup signal while
1263                  * still being in the process of suspending.
1264                  */
1265                 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1266         };
1267         struct iwl_host_cmd d3_cfg_cmd = {
1268                 .id = D3_CONFIG_CMD,
1269                 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1270                 .data[0] = &d3_cfg_cmd_data,
1271                 .len[0] = sizeof(d3_cfg_cmd_data),
1272         };
1273         int ret;
1274         int len __maybe_unused;
1275         bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1276                                          IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1277
1278         if (!wowlan) {
1279                 /*
1280                  * mac80211 shouldn't get here, but for D3 test
1281                  * it doesn't warrant a warning
1282                  */
1283                 WARN_ON(!test);
1284                 return -EINVAL;
1285         }
1286
1287         vif = iwl_mvm_get_bss_vif(mvm);
1288         if (IS_ERR_OR_NULL(vif))
1289                 return 1;
1290
1291         ret = iwl_mvm_block_esr_sync(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN);
1292         if (ret)
1293                 return ret;
1294
1295         mutex_lock(&mvm->mutex);
1296
1297         set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1298
1299         synchronize_net();
1300
1301         mvmvif = iwl_mvm_vif_from_mac80211(vif);
1302
1303         mvm_link = mvmvif->link[iwl_mvm_get_primary_link(vif)];
1304         if (WARN_ON_ONCE(!mvm_link)) {
1305                 ret = -EINVAL;
1306                 goto out_noreset;
1307         }
1308
1309         if (mvm_link->ap_sta_id == IWL_INVALID_STA) {
1310                 /* if we're not associated, this must be netdetect */
1311                 if (!wowlan->nd_config) {
1312                         ret = 1;
1313                         goto out_noreset;
1314                 }
1315
1316                 ret = iwl_mvm_netdetect_config(
1317                         mvm, wowlan, wowlan->nd_config, vif);
1318                 if (ret)
1319                         goto out;
1320
1321                 mvm->net_detect = true;
1322         } else {
1323                 struct iwl_wowlan_config_cmd_v6 wowlan_config_cmd = {
1324                         .offloading_tid = 0,
1325                 };
1326
1327                 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id;
1328
1329                 ap_sta = rcu_dereference_protected(
1330                         mvm->fw_id_to_mac_id[mvm_link->ap_sta_id],
1331                         lockdep_is_held(&mvm->mutex));
1332                 if (IS_ERR_OR_NULL(ap_sta)) {
1333                         ret = -EINVAL;
1334                         goto out_noreset;
1335                 }
1336
1337                 ret = iwl_mvm_sta_ensure_queue(
1338                         mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]);
1339                 if (ret)
1340                         goto out_noreset;
1341
1342                 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1343                                                 vif, mvmvif, ap_sta);
1344                 if (ret)
1345                         goto out_noreset;
1346                 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1347                                             vif, mvmvif, mvm_link, ap_sta);
1348                 if (ret)
1349                         goto out;
1350
1351                 mvm->net_detect = false;
1352         }
1353
1354         ret = iwl_mvm_power_update_device(mvm);
1355         if (ret)
1356                 goto out;
1357
1358         ret = iwl_mvm_power_update_mac(mvm);
1359         if (ret)
1360                 goto out;
1361
1362 #ifdef CONFIG_IWLWIFI_DEBUGFS
1363         if (mvm->d3_wake_sysassert)
1364                 d3_cfg_cmd_data.wakeup_flags |=
1365                         cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1366 #endif
1367
1368         /*
1369          * Prior to 9000 device family the driver needs to stop the dbg
1370          * recording before entering D3. In later devices the FW stops the
1371          * recording automatically.
1372          */
1373         if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1374                 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1375
1376         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1377
1378         /* must be last -- this switches firmware state */
1379         ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1380         if (ret)
1381                 goto out;
1382 #ifdef CONFIG_IWLWIFI_DEBUGFS
1383         len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1384         if (len >= sizeof(u32)) {
1385                 mvm->d3_test_pme_ptr =
1386                         le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1387         }
1388 #endif
1389         iwl_free_resp(&d3_cfg_cmd);
1390
1391         clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1392
1393         ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1394  out:
1395         if (ret < 0) {
1396                 iwl_mvm_free_nd(mvm);
1397
1398                 if (!unified_image) {
1399                         if (mvm->fw_restart > 0) {
1400                                 mvm->fw_restart--;
1401                                 ieee80211_restart_hw(mvm->hw);
1402                         }
1403                 }
1404
1405                 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1406         }
1407  out_noreset:
1408         mutex_unlock(&mvm->mutex);
1409
1410         return ret;
1411 }
1412
1413 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1414 {
1415         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1416
1417         iwl_mvm_pause_tcm(mvm, true);
1418
1419         mutex_lock(&mvm->mutex);
1420         iwl_fw_runtime_suspend(&mvm->fwrt);
1421         mutex_unlock(&mvm->mutex);
1422
1423         return __iwl_mvm_suspend(hw, wowlan, false);
1424 }
1425
1426 struct iwl_multicast_key_data {
1427         u8 key[WOWLAN_KEY_MAX_SIZE];
1428         u8 len;
1429         u8 flags;
1430         u8 id;
1431         u8 ipn[6];
1432 };
1433
1434 /* converted data from the different status responses */
1435 struct iwl_wowlan_status_data {
1436         u64 replay_ctr;
1437         u32 num_of_gtk_rekeys;
1438         u32 received_beacons;
1439         u32 wakeup_reasons;
1440         u32 wake_packet_length;
1441         u32 wake_packet_bufsize;
1442         u16 pattern_number;
1443         u16 non_qos_seq_ctr;
1444         u16 qos_seq_ctr[8];
1445         u8 tid_tear_down;
1446         u8 tid_offloaded_tx;
1447
1448         struct {
1449                 /* including RX MIC key for TKIP */
1450                 u8 key[WOWLAN_KEY_MAX_SIZE];
1451                 u8 len;
1452                 u8 flags;
1453                 u8 id;
1454         } gtk[WOWLAN_GTK_KEYS_NUM];
1455
1456         struct {
1457                 /*
1458                  * We store both the TKIP and AES representations
1459                  * coming from the firmware because we decode the
1460                  * data from there before we iterate the keys and
1461                  * know which one we need.
1462                  */
1463                 struct {
1464                         struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1465                 } tkip, aes;
1466
1467                 /*
1468                  * We use -1 for when we have valid data but don't know
1469                  * the key ID from firmware, and thus it needs to be
1470                  * installed with the last key (depending on rekeying).
1471                  */
1472                 s8 key_id;
1473                 bool valid;
1474         } gtk_seq[2];
1475
1476         struct {
1477                 /* Same as above */
1478                 struct {
1479                         struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1480                         u64 tx_pn;
1481                 } tkip, aes;
1482         } ptk;
1483
1484         struct iwl_multicast_key_data igtk;
1485         struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM];
1486
1487         int num_mlo_keys;
1488         struct iwl_wowlan_mlo_gtk mlo_keys[WOWLAN_MAX_MLO_KEYS];
1489
1490         u8 *wake_packet;
1491 };
1492
1493 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1494                                           struct ieee80211_vif *vif,
1495                                           struct iwl_wowlan_status_data *status)
1496 {
1497         struct sk_buff *pkt = NULL;
1498         struct cfg80211_wowlan_wakeup wakeup = {
1499                 .pattern_idx = -1,
1500         };
1501         struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1502         u32 reasons = status->wakeup_reasons;
1503
1504         if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1505                 wakeup_report = NULL;
1506                 goto report;
1507         }
1508
1509         pm_wakeup_event(mvm->dev, 0);
1510
1511         if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1512                 wakeup.magic_pkt = true;
1513
1514         if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1515                 wakeup.pattern_idx =
1516                         status->pattern_number;
1517
1518         if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1519                        IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH |
1520                        IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE))
1521                 wakeup.disconnect = true;
1522
1523         if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1524                 wakeup.gtk_rekey_failure = true;
1525
1526         if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1527                 wakeup.rfkill_release = true;
1528
1529         if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1530                 wakeup.eap_identity_req = true;
1531
1532         if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1533                 wakeup.four_way_handshake = true;
1534
1535         if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1536                 wakeup.tcp_connlost = true;
1537
1538         if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1539                 wakeup.tcp_nomoretokens = true;
1540
1541         if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1542                 wakeup.tcp_match = true;
1543
1544         if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC)
1545                 wakeup.unprot_deauth_disassoc = true;
1546
1547         if (status->wake_packet) {
1548                 int pktsize = status->wake_packet_bufsize;
1549                 int pktlen = status->wake_packet_length;
1550                 const u8 *pktdata = status->wake_packet;
1551                 const struct ieee80211_hdr *hdr = (const void *)pktdata;
1552                 int truncated = pktlen - pktsize;
1553
1554                 /* this would be a firmware bug */
1555                 if (WARN_ON_ONCE(truncated < 0))
1556                         truncated = 0;
1557
1558                 if (ieee80211_is_data(hdr->frame_control)) {
1559                         int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1560                         int ivlen = 0, icvlen = 4; /* also FCS */
1561
1562                         pkt = alloc_skb(pktsize, GFP_KERNEL);
1563                         if (!pkt)
1564                                 goto report;
1565
1566                         skb_put_data(pkt, pktdata, hdrlen);
1567                         pktdata += hdrlen;
1568                         pktsize -= hdrlen;
1569
1570                         if (ieee80211_has_protected(hdr->frame_control)) {
1571                                 /*
1572                                  * This is unlocked and using gtk_i(c)vlen,
1573                                  * but since everything is under RTNL still
1574                                  * that's not really a problem - changing
1575                                  * it would be difficult.
1576                                  */
1577                                 if (is_multicast_ether_addr(hdr->addr1)) {
1578                                         ivlen = mvm->gtk_ivlen;
1579                                         icvlen += mvm->gtk_icvlen;
1580                                 } else {
1581                                         ivlen = mvm->ptk_ivlen;
1582                                         icvlen += mvm->ptk_icvlen;
1583                                 }
1584                         }
1585
1586                         /* if truncated, FCS/ICV is (partially) gone */
1587                         if (truncated >= icvlen) {
1588                                 icvlen = 0;
1589                                 truncated -= icvlen;
1590                         } else {
1591                                 icvlen -= truncated;
1592                                 truncated = 0;
1593                         }
1594
1595                         pktsize -= ivlen + icvlen;
1596                         pktdata += ivlen;
1597
1598                         skb_put_data(pkt, pktdata, pktsize);
1599
1600                         if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1601                                 goto report;
1602                         wakeup.packet = pkt->data;
1603                         wakeup.packet_present_len = pkt->len;
1604                         wakeup.packet_len = pkt->len - truncated;
1605                         wakeup.packet_80211 = false;
1606                 } else {
1607                         int fcslen = 4;
1608
1609                         if (truncated >= 4) {
1610                                 truncated -= 4;
1611                                 fcslen = 0;
1612                         } else {
1613                                 fcslen -= truncated;
1614                                 truncated = 0;
1615                         }
1616                         pktsize -= fcslen;
1617                         wakeup.packet = status->wake_packet;
1618                         wakeup.packet_present_len = pktsize;
1619                         wakeup.packet_len = pktlen - truncated;
1620                         wakeup.packet_80211 = true;
1621                 }
1622         }
1623
1624  report:
1625         ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1626         kfree_skb(pkt);
1627 }
1628
1629 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1630 {
1631         u64 pn = le64_to_cpu(le_pn);
1632
1633         seq->ccmp.pn[0] = pn >> 40;
1634         seq->ccmp.pn[1] = pn >> 32;
1635         seq->ccmp.pn[2] = pn >> 24;
1636         seq->ccmp.pn[3] = pn >> 16;
1637         seq->ccmp.pn[4] = pn >> 8;
1638         seq->ccmp.pn[5] = pn;
1639 }
1640
1641 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1642                                   struct ieee80211_key_seq *seq)
1643 {
1644         iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1645 }
1646
1647 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1648 {
1649         u64 pn = le64_to_cpu(le_pn);
1650
1651         seq->tkip.iv16 = (u16)pn;
1652         seq->tkip.iv32 = (u32)(pn >> 16);
1653 }
1654
1655 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1656                                    struct ieee80211_key_seq *seq)
1657 {
1658         seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1659         seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1660 }
1661
1662 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1663                                         struct ieee80211_key_seq *seq)
1664 {
1665         int tid;
1666
1667         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1668                 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1669 }
1670
1671 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1672                                        struct iwl_wowlan_status_data *status,
1673                                        struct ieee80211_sta *sta,
1674                                        struct ieee80211_key_conf *key)
1675 {
1676         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1677         struct iwl_mvm_key_pn *ptk_pn;
1678         int tid;
1679
1680         iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
1681
1682         if (!iwl_mvm_has_new_rx_api(mvm))
1683                 return;
1684
1685
1686         rcu_read_lock();
1687         ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1688         if (WARN_ON(!ptk_pn)) {
1689                 rcu_read_unlock();
1690                 return;
1691         }
1692
1693         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1694                 int i;
1695
1696                 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1697                         memcpy(ptk_pn->q[i].pn[tid],
1698                                status->ptk.aes.seq[tid].ccmp.pn,
1699                                IEEE80211_CCMP_PN_LEN);
1700         }
1701         rcu_read_unlock();
1702 }
1703
1704 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1705                                          union iwl_all_tsc_rsc *sc)
1706 {
1707         int i;
1708
1709         BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1710         BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1711
1712         /* GTK RX counters */
1713         for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1714                 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
1715                                        &status->gtk_seq[0].tkip.seq[i]);
1716                 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
1717                                       &status->gtk_seq[0].aes.seq[i]);
1718         }
1719         status->gtk_seq[0].valid = true;
1720         status->gtk_seq[0].key_id = -1;
1721
1722         /* PTK TX counter */
1723         status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1724                                  ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1725         status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1726
1727         /* PTK RX counters */
1728         for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1729                 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1730                                        &status->ptk.tkip.seq[i]);
1731                 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1732                                       &status->ptk.aes.seq[i]);
1733         }
1734 }
1735
1736 static void
1737 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1738                                         struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1739                                         unsigned int idx, unsigned int key_id)
1740 {
1741         int tid;
1742
1743         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1744                 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1745                                          &status->gtk_seq[idx].tkip.seq[tid]);
1746                 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1747                                         &status->gtk_seq[idx].aes.seq[tid]);
1748         }
1749
1750         status->gtk_seq[idx].valid = true;
1751         status->gtk_seq[idx].key_id = key_id;
1752 }
1753
1754 static void
1755 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1756                                 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1757 {
1758         int i, tid;
1759
1760         BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1761         BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1762         BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1763
1764         /* GTK RX counters */
1765         for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1766                 u8 entry = sc->mcast_key_id_map[i];
1767
1768                 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1769                         iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1770                                                                 entry, i);
1771         }
1772
1773         /* PTK TX counters not needed, assigned in device */
1774
1775         /* PTK RX counters */
1776         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1777                 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1778                                          &status->ptk.tkip.seq[tid]);
1779                 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1780                                         &status->ptk.aes.seq[tid]);
1781         }
1782 }
1783
1784 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1785                                        struct iwl_wowlan_status_data *status,
1786                                        int idx)
1787 {
1788         switch (key->cipher) {
1789         case WLAN_CIPHER_SUITE_CCMP:
1790         case WLAN_CIPHER_SUITE_GCMP:
1791         case WLAN_CIPHER_SUITE_GCMP_256:
1792                 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
1793                 break;
1794         case WLAN_CIPHER_SUITE_TKIP:
1795                 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
1796                 break;
1797         default:
1798                 WARN_ON(1);
1799         }
1800 }
1801
1802 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1803                                    struct iwl_wowlan_status_data *status,
1804                                    bool installed)
1805 {
1806         int i;
1807
1808         for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1809                 if (!status->gtk_seq[i].valid)
1810                         continue;
1811
1812                 /* Handle the case where we know the key ID */
1813                 if (status->gtk_seq[i].key_id == key->keyidx) {
1814                         s8 new_key_id = -1;
1815
1816                         if (status->num_of_gtk_rekeys)
1817                                 new_key_id = status->gtk[0].flags &
1818                                                 IWL_WOWLAN_GTK_IDX_MASK;
1819
1820                         /* Don't install a new key's value to an old key */
1821                         if (new_key_id != key->keyidx)
1822                                 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1823                         continue;
1824                 }
1825
1826                 /* handle the case where we didn't, last key only */
1827                 if (status->gtk_seq[i].key_id == -1 &&
1828                     (!status->num_of_gtk_rekeys || installed))
1829                         iwl_mvm_set_key_rx_seq_idx(key, status, i);
1830         }
1831 }
1832
1833 struct iwl_mvm_d3_gtk_iter_data {
1834         struct iwl_mvm *mvm;
1835         struct iwl_wowlan_status_data *status;
1836         u32 gtk_cipher, igtk_cipher, bigtk_cipher;
1837         bool unhandled_cipher, igtk_support, bigtk_support;
1838         int num_keys;
1839 };
1840
1841 static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw,
1842                                       struct ieee80211_vif *vif,
1843                                       struct ieee80211_sta *sta,
1844                                       struct ieee80211_key_conf *key,
1845                                       void *_data)
1846 {
1847         struct iwl_mvm_d3_gtk_iter_data *data = _data;
1848         int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
1849
1850         if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id)
1851                 return;
1852
1853         if (data->unhandled_cipher)
1854                 return;
1855
1856         switch (key->cipher) {
1857         case WLAN_CIPHER_SUITE_WEP40:
1858         case WLAN_CIPHER_SUITE_WEP104:
1859                 /* ignore WEP completely, nothing to do */
1860                 return;
1861         case WLAN_CIPHER_SUITE_CCMP:
1862         case WLAN_CIPHER_SUITE_GCMP:
1863         case WLAN_CIPHER_SUITE_GCMP_256:
1864         case WLAN_CIPHER_SUITE_TKIP:
1865                 /* we support these */
1866                 data->gtk_cipher = key->cipher;
1867                 break;
1868         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1869         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1870         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1871         case WLAN_CIPHER_SUITE_AES_CMAC:
1872                 /* we support these */
1873                 if (data->igtk_support &&
1874                     (key->keyidx == 4 || key->keyidx == 5)) {
1875                         data->igtk_cipher = key->cipher;
1876                 } else if (data->bigtk_support &&
1877                            (key->keyidx == 6 || key->keyidx == 7)) {
1878                         data->bigtk_cipher = key->cipher;
1879                 } else {
1880                         data->unhandled_cipher = true;
1881                         return;
1882                 }
1883                 break;
1884         default:
1885                 /* everything else - disconnect from AP */
1886                 data->unhandled_cipher = true;
1887                 return;
1888         }
1889
1890         data->num_keys++;
1891 }
1892
1893 static void
1894 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key,
1895                               struct ieee80211_key_seq *seq, u32 cipher)
1896 {
1897         switch (cipher) {
1898         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1899         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1900                 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn));
1901                 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn));
1902                 break;
1903         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1904         case WLAN_CIPHER_SUITE_AES_CMAC:
1905                 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn));
1906                 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn));
1907                 break;
1908         default:
1909                 WARN_ON(1);
1910         }
1911 }
1912
1913 static void
1914 iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status,
1915                              struct ieee80211_key_conf *key,
1916                              struct iwl_multicast_key_data *key_data)
1917 {
1918         if (status->num_of_gtk_rekeys && key_data->len) {
1919                 /* remove rekeyed key */
1920                 ieee80211_remove_key(key);
1921         } else {
1922                 struct ieee80211_key_seq seq;
1923
1924                 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data,
1925                                               &seq,
1926                                               key->cipher);
1927                 ieee80211_set_key_rx_seq(key, 0, &seq);
1928         }
1929 }
1930
1931 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1932                                    struct ieee80211_vif *vif,
1933                                    struct ieee80211_sta *sta,
1934                                    struct ieee80211_key_conf *key,
1935                                    void *_data)
1936 {
1937         struct iwl_mvm_d3_gtk_iter_data *data = _data;
1938         struct iwl_wowlan_status_data *status = data->status;
1939         s8 keyidx;
1940         int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
1941
1942         if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id)
1943                 return;
1944
1945         if (data->unhandled_cipher)
1946                 return;
1947
1948         switch (key->cipher) {
1949         case WLAN_CIPHER_SUITE_WEP40:
1950         case WLAN_CIPHER_SUITE_WEP104:
1951                 /* ignore WEP completely, nothing to do */
1952                 return;
1953         case WLAN_CIPHER_SUITE_CCMP:
1954         case WLAN_CIPHER_SUITE_GCMP:
1955         case WLAN_CIPHER_SUITE_GCMP_256:
1956                 if (sta) {
1957                         atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1958                         iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
1959                         return;
1960                 }
1961                 fallthrough;
1962         case WLAN_CIPHER_SUITE_TKIP:
1963                 if (sta) {
1964                         atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1965                         iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
1966                         return;
1967                 }
1968                 keyidx = key->keyidx;
1969                 /* The current key is always sent by the FW, even if it wasn't
1970                  * rekeyed during D3.
1971                  * We remove an existing key if it has the same index as
1972                  * a new key
1973                  */
1974                 if (status->num_of_gtk_rekeys &&
1975                     ((status->gtk[0].len && keyidx == status->gtk[0].id) ||
1976                      (status->gtk[1].len && keyidx == status->gtk[1].id))) {
1977                         ieee80211_remove_key(key);
1978                 } else {
1979                         iwl_mvm_set_key_rx_seq(key, data->status, false);
1980                 }
1981                 break;
1982         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1983         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1984         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1985         case WLAN_CIPHER_SUITE_AES_CMAC:
1986                 if (key->keyidx == 4 || key->keyidx == 5) {
1987                         iwl_mvm_d3_update_igtk_bigtk(status, key,
1988                                                      &status->igtk);
1989                 }
1990                 if (key->keyidx == 6 || key->keyidx == 7) {
1991                         u8 idx = key->keyidx == status->bigtk[1].id;
1992
1993                         iwl_mvm_d3_update_igtk_bigtk(status, key,
1994                                                      &status->bigtk[idx]);
1995                 }
1996         }
1997 }
1998
1999 struct iwl_mvm_d3_mlo_old_keys {
2000         u32 cipher[IEEE80211_MLD_MAX_NUM_LINKS][WOWLAN_MLO_GTK_KEY_NUM_TYPES];
2001         struct ieee80211_key_conf *key[IEEE80211_MLD_MAX_NUM_LINKS][8];
2002 };
2003
2004 static void iwl_mvm_mlo_key_ciphers(struct ieee80211_hw *hw,
2005                                     struct ieee80211_vif *vif,
2006                                     struct ieee80211_sta *sta,
2007                                     struct ieee80211_key_conf *key,
2008                                     void *data)
2009 {
2010         struct iwl_mvm_d3_mlo_old_keys *old_keys = data;
2011         enum iwl_wowlan_mlo_gtk_type key_type;
2012
2013         if (key->link_id < 0)
2014                 return;
2015
2016         if (WARN_ON(key->link_id >= IEEE80211_MLD_MAX_NUM_LINKS ||
2017                     key->keyidx >= 8))
2018                 return;
2019
2020         if (WARN_ON(old_keys->key[key->link_id][key->keyidx]))
2021                 return;
2022
2023         switch (key->cipher) {
2024         case WLAN_CIPHER_SUITE_CCMP:
2025         case WLAN_CIPHER_SUITE_GCMP:
2026         case WLAN_CIPHER_SUITE_GCMP_256:
2027                 key_type = WOWLAN_MLO_GTK_KEY_TYPE_GTK;
2028                 break;
2029         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2030         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2031         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2032         case WLAN_CIPHER_SUITE_AES_CMAC:
2033                 if (key->keyidx == 4 || key->keyidx == 5) {
2034                         key_type = WOWLAN_MLO_GTK_KEY_TYPE_IGTK;
2035                         break;
2036                 } else if (key->keyidx == 6 || key->keyidx == 7) {
2037                         key_type = WOWLAN_MLO_GTK_KEY_TYPE_BIGTK;
2038                         break;
2039                 }
2040                 return;
2041         default:
2042                 /* ignore WEP/TKIP or unknown ciphers */
2043                 return;
2044         }
2045
2046         old_keys->cipher[key->link_id][key_type] = key->cipher;
2047         old_keys->key[key->link_id][key->keyidx] = key;
2048 }
2049
2050 static bool iwl_mvm_mlo_gtk_rekey(struct iwl_wowlan_status_data *status,
2051                                   struct ieee80211_vif *vif,
2052                                   struct iwl_mvm *mvm)
2053 {
2054         int i;
2055         struct iwl_mvm_d3_mlo_old_keys *old_keys;
2056         bool ret = true;
2057
2058         IWL_DEBUG_WOWLAN(mvm, "Num of MLO Keys: %d\n", status->num_mlo_keys);
2059         if (!status->num_mlo_keys)
2060                 return true;
2061
2062         old_keys = kzalloc(sizeof(*old_keys), GFP_KERNEL);
2063         if (!old_keys)
2064                 return false;
2065
2066         /* find the cipher for each mlo key */
2067         ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_mlo_key_ciphers, old_keys);
2068
2069         for (i = 0; i < status->num_mlo_keys; i++) {
2070                 struct iwl_wowlan_mlo_gtk *mlo_key = &status->mlo_keys[i];
2071                 struct ieee80211_key_conf *key, *old_key;
2072                 struct ieee80211_key_seq seq;
2073                 struct {
2074                         struct ieee80211_key_conf conf;
2075                         u8 key[32];
2076                 } conf = {};
2077                 u16 flags = le16_to_cpu(mlo_key->flags);
2078                 int j, link_id, key_id, key_type;
2079
2080                 link_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_LINK_ID_MSK);
2081                 key_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_KEY_ID_MSK);
2082                 key_type = u16_get_bits(flags,
2083                                         WOWLAN_MLO_GTK_FLAG_KEY_TYPE_MSK);
2084
2085                 if (!(vif->valid_links & BIT(link_id)))
2086                         continue;
2087
2088                 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS ||
2089                             key_id >= 8 ||
2090                             key_type >= WOWLAN_MLO_GTK_KEY_NUM_TYPES))
2091                         continue;
2092
2093                 conf.conf.cipher = old_keys->cipher[link_id][key_type];
2094                 /* WARN_ON? */
2095                 if (!conf.conf.cipher)
2096                         continue;
2097
2098                 conf.conf.keylen = 0;
2099                 switch (conf.conf.cipher) {
2100                 case WLAN_CIPHER_SUITE_CCMP:
2101                 case WLAN_CIPHER_SUITE_GCMP:
2102                         conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2103                         break;
2104                 case WLAN_CIPHER_SUITE_GCMP_256:
2105                         conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
2106                         break;
2107                 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2108                         conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2109                         break;
2110                 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2111                         conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2112                         break;
2113                 case WLAN_CIPHER_SUITE_AES_CMAC:
2114                         conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2115                         break;
2116                 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2117                         conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2118                         break;
2119                 }
2120
2121                 if (WARN_ON(!conf.conf.keylen ||
2122                             conf.conf.keylen > sizeof(conf.key)))
2123                         continue;
2124
2125                 memcpy(conf.conf.key, mlo_key->key, conf.conf.keylen);
2126                 conf.conf.keyidx = key_id;
2127
2128                 old_key = old_keys->key[link_id][key_id];
2129                 if (old_key) {
2130                         IWL_DEBUG_WOWLAN(mvm,
2131                                          "Remove MLO key id %d, link id %d\n",
2132                                          key_id, link_id);
2133                         ieee80211_remove_key(old_key);
2134                 }
2135
2136                 IWL_DEBUG_WOWLAN(mvm, "Add MLO key id %d, link id %d\n",
2137                                  key_id, link_id);
2138                 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2139                 if (WARN_ON(IS_ERR(key))) {
2140                         ret = false;
2141                         goto out;
2142                 }
2143
2144                 /*
2145                  * mac80211 expects the pn in big-endian
2146                  * also note that seq is a union of all cipher types
2147                  * (ccmp, gcmp, cmac, gmac), and they all have the same
2148                  * pn field (of length 6) so just copy it to ccmp.pn.
2149                  */
2150                 for (j = 5; j >= 0; j--)
2151                         seq.ccmp.pn[5 - j] = mlo_key->pn[j];
2152
2153                 /* group keys are non-QoS and use TID 0 */
2154                 ieee80211_set_key_rx_seq(key, 0, &seq);
2155         }
2156
2157 out:
2158         kfree(old_keys);
2159         return ret;
2160 }
2161
2162 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status,
2163                               struct ieee80211_vif *vif,
2164                               struct iwl_mvm *mvm, u32 gtk_cipher)
2165 {
2166         int i, j;
2167         struct ieee80211_key_conf *key;
2168         struct {
2169                 struct ieee80211_key_conf conf;
2170                 u8 key[32];
2171         } conf = {
2172                 .conf.cipher = gtk_cipher,
2173         };
2174         int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
2175
2176         BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
2177         BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
2178         BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
2179         BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
2180         BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key));
2181
2182         switch (gtk_cipher) {
2183         case WLAN_CIPHER_SUITE_CCMP:
2184         case WLAN_CIPHER_SUITE_GCMP:
2185                 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2186                 break;
2187         case WLAN_CIPHER_SUITE_GCMP_256:
2188                 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
2189                 break;
2190         case WLAN_CIPHER_SUITE_TKIP:
2191                 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
2192                 break;
2193         default:
2194                 WARN_ON(1);
2195         }
2196
2197         for (i = 0; i < ARRAY_SIZE(status->gtk); i++) {
2198                 if (!status->gtk[i].len)
2199                         continue;
2200
2201                 conf.conf.keyidx = status->gtk[i].id;
2202                 IWL_DEBUG_WOWLAN(mvm,
2203                                  "Received from FW GTK cipher %d, key index %d\n",
2204                                  conf.conf.cipher, conf.conf.keyidx);
2205                 memcpy(conf.conf.key, status->gtk[i].key,
2206                        sizeof(status->gtk[i].key));
2207
2208                 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2209                 if (IS_ERR(key))
2210                         return false;
2211
2212                 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) {
2213                         if (!status->gtk_seq[j].valid ||
2214                             status->gtk_seq[j].key_id != key->keyidx)
2215                                 continue;
2216                         iwl_mvm_set_key_rx_seq_idx(key, status, j);
2217                         break;
2218                 }
2219                 WARN_ON(j == ARRAY_SIZE(status->gtk_seq));
2220         }
2221
2222         return true;
2223 }
2224
2225 static bool
2226 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status,
2227                                 struct ieee80211_vif *vif, u32 cipher,
2228                                 struct iwl_multicast_key_data *key_data)
2229 {
2230         struct ieee80211_key_conf *key_config;
2231         struct {
2232                 struct ieee80211_key_conf conf;
2233                 u8 key[WOWLAN_KEY_MAX_SIZE];
2234         } conf = {
2235                 .conf.cipher = cipher,
2236                 .conf.keyidx = key_data->id,
2237         };
2238         struct ieee80211_key_seq seq;
2239         int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
2240
2241         if (!key_data->len)
2242                 return true;
2243
2244         iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher);
2245
2246         switch (cipher) {
2247         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2248                 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2249                 break;
2250         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2251                 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2252                 break;
2253         case WLAN_CIPHER_SUITE_AES_CMAC:
2254                 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2255                 break;
2256         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2257                 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2258                 break;
2259         default:
2260                 WARN_ON(1);
2261         }
2262         BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key));
2263         memcpy(conf.conf.key, key_data->key, conf.conf.keylen);
2264
2265         key_config = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2266         if (IS_ERR(key_config))
2267                 return false;
2268         ieee80211_set_key_rx_seq(key_config, 0, &seq);
2269
2270         if (key_config->keyidx == 4 || key_config->keyidx == 5) {
2271                 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2272                 struct iwl_mvm_vif_link_info *mvm_link;
2273
2274                 link_id = link_id < 0 ? 0 : link_id;
2275                 mvm_link = mvmvif->link[link_id];
2276                 mvm_link->igtk = key_config;
2277         }
2278
2279         return true;
2280 }
2281
2282 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm)
2283 {
2284         u8 notif_ver;
2285
2286         if (!fw_has_api(&mvm->fw->ucode_capa,
2287                         IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL))
2288                 return 6;
2289
2290         /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2291         notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2292                                             WOWLAN_GET_STATUSES, 0);
2293         if (!notif_ver)
2294                 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2295                                                     WOWLAN_GET_STATUSES, 7);
2296
2297         return notif_ver;
2298 }
2299
2300 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
2301                                           struct ieee80211_vif *vif,
2302                                           struct iwl_wowlan_status_data *status)
2303 {
2304         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2305         struct iwl_mvm_d3_gtk_iter_data gtkdata = {
2306                 .mvm = mvm,
2307                 .status = status,
2308         };
2309         int i;
2310         u32 disconnection_reasons =
2311                 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
2312                 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
2313
2314         if (!status || !vif->bss_conf.bssid)
2315                 return false;
2316
2317         if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 ||
2318             iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2319                                     WOWLAN_INFO_NOTIFICATION,
2320                                     0))
2321                 gtkdata.igtk_support = true;
2322
2323         if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2324                                     WOWLAN_INFO_NOTIFICATION,
2325                                     0) >= 3)
2326                 gtkdata.bigtk_support = true;
2327
2328         /* find last GTK that we used initially, if any */
2329         ieee80211_iter_keys(mvm->hw, vif,
2330                             iwl_mvm_d3_find_last_keys, &gtkdata);
2331         /* not trying to keep connections with MFP/unhandled ciphers */
2332         if (gtkdata.unhandled_cipher)
2333                 return false;
2334         if (!gtkdata.num_keys)
2335                 goto out;
2336
2337         /*
2338          * invalidate all other GTKs that might still exist and update
2339          * the one that we used
2340          */
2341         ieee80211_iter_keys(mvm->hw, vif,
2342                             iwl_mvm_d3_update_keys, &gtkdata);
2343
2344         if (status->num_of_gtk_rekeys) {
2345                 __be64 replay_ctr = cpu_to_be64(status->replay_ctr);
2346
2347                 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
2348                                  status->num_of_gtk_rekeys);
2349
2350                 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher))
2351                         return false;
2352
2353                 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2354                                                      gtkdata.igtk_cipher,
2355                                                      &status->igtk))
2356                         return false;
2357
2358                 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) {
2359                         if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2360                                                              gtkdata.bigtk_cipher,
2361                                                              &status->bigtk[i]))
2362                                 return false;
2363                 }
2364
2365                 if (!iwl_mvm_mlo_gtk_rekey(status, vif, mvm))
2366                         return false;
2367
2368                 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
2369                                            (void *)&replay_ctr, GFP_KERNEL);
2370         }
2371
2372 out:
2373         if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2374                                     WOWLAN_GET_STATUSES,
2375                                     IWL_FW_CMD_VER_UNKNOWN) < 10) {
2376                 mvmvif->seqno_valid = true;
2377                 /* +0x10 because the set API expects next-to-use, not last-used */
2378                 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
2379         }
2380
2381         if (status->wakeup_reasons & disconnection_reasons)
2382                 return false;
2383
2384         return true;
2385 }
2386
2387 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2388                                    struct iwl_wowlan_gtk_status_v2 *data)
2389 {
2390         BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key));
2391         BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2392                      sizeof(data->tkip_mic_key) >
2393                      sizeof(status->gtk[0].key));
2394
2395         status->gtk[0].len = data->key_len;
2396         status->gtk[0].flags = data->key_flags;
2397
2398         memcpy(status->gtk[0].key, data->key, sizeof(data->key));
2399
2400         /* if it's as long as the TKIP encryption key, copy MIC key */
2401         if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2402                 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2403                        data->tkip_mic_key, sizeof(data->tkip_mic_key));
2404 }
2405
2406 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2407                                    struct iwl_wowlan_gtk_status_v3 *data)
2408 {
2409         int data_idx, status_idx = 0;
2410
2411         BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key));
2412         BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2413                      sizeof(data[0].tkip_mic_key) >
2414                      sizeof(status->gtk[0].key));
2415         BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM);
2416         for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) {
2417                 if (!(data[data_idx].key_len))
2418                         continue;
2419                 status->gtk[status_idx].len = data[data_idx].key_len;
2420                 status->gtk[status_idx].flags = data[data_idx].key_flags;
2421                 status->gtk[status_idx].id = status->gtk[status_idx].flags &
2422                                     IWL_WOWLAN_GTK_IDX_MASK;
2423
2424                 memcpy(status->gtk[status_idx].key, data[data_idx].key,
2425                        sizeof(data[data_idx].key));
2426
2427                 /* if it's as long as the TKIP encryption key, copy MIC key */
2428                 if (status->gtk[status_idx].len ==
2429                     NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2430                         memcpy(status->gtk[status_idx].key +
2431                                NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2432                                data[data_idx].tkip_mic_key,
2433                                sizeof(data[data_idx].tkip_mic_key));
2434                 status_idx++;
2435         }
2436 }
2437
2438 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2439                                  struct iwl_wowlan_igtk_status *data)
2440 {
2441         int i;
2442
2443         BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2444         BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn));
2445
2446         if (!data->key_len)
2447                 return;
2448
2449         status->igtk.len = data->key_len;
2450         status->igtk.flags = data->key_flags;
2451         status->igtk.id = u32_get_bits(data->key_flags,
2452                                        IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2453                 + WOWLAN_IGTK_MIN_INDEX;
2454
2455         memcpy(status->igtk.key, data->key, sizeof(data->key));
2456
2457         /* mac80211 expects big endian for memcmp() to work, convert */
2458         for (i = 0; i < sizeof(data->ipn); i++)
2459                 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1];
2460 }
2461
2462 static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status,
2463                                   const struct iwl_wowlan_igtk_status *data)
2464 {
2465         int data_idx, status_idx = 0;
2466
2467         BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM);
2468
2469         for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) {
2470                 if (!data[data_idx].key_len)
2471                         continue;
2472
2473                 status->bigtk[status_idx].len = data[data_idx].key_len;
2474                 status->bigtk[status_idx].flags = data[data_idx].key_flags;
2475                 status->bigtk[status_idx].id =
2476                         u32_get_bits(data[data_idx].key_flags,
2477                                      IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2478                         + WOWLAN_BIGTK_MIN_INDEX;
2479
2480                 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) <
2481                              sizeof(data[data_idx].key));
2482                 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) <
2483                              sizeof(data[data_idx].ipn));
2484
2485                 memcpy(status->bigtk[status_idx].key, data[data_idx].key,
2486                        sizeof(data[data_idx].key));
2487                 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn,
2488                        sizeof(data[data_idx].ipn));
2489                 status_idx++;
2490         }
2491 }
2492
2493 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
2494                                             struct iwl_wowlan_info_notif *data,
2495                                             struct iwl_wowlan_status_data *status,
2496                                             u32 len)
2497 {
2498         u32 expected_len = sizeof(*data) +
2499                 data->num_mlo_link_keys * sizeof(status->mlo_keys[0]);
2500
2501         if (!data) {
2502                 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2503                 status = NULL;
2504                 return;
2505         }
2506
2507         if (len < expected_len) {
2508                 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2509                 status = NULL;
2510                 return;
2511         }
2512
2513         if (mvm->fast_resume)
2514                 return;
2515
2516         iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2517         iwl_mvm_convert_gtk_v3(status, data->gtk);
2518         iwl_mvm_convert_igtk(status, &data->igtk[0]);
2519         iwl_mvm_convert_bigtk(status, data->bigtk);
2520         status->replay_ctr = le64_to_cpu(data->replay_ctr);
2521         status->pattern_number = le16_to_cpu(data->pattern_number);
2522         status->tid_offloaded_tx = data->tid_offloaded_tx;
2523         if (IWL_FW_CHECK(mvm,
2524                          data->tid_offloaded_tx >=
2525                          ARRAY_SIZE(status->qos_seq_ctr),
2526                          "tid_offloaded_tx is out of bound %d\n",
2527                          data->tid_offloaded_tx))
2528                 data->tid_offloaded_tx = 0;
2529         status->qos_seq_ctr[data->tid_offloaded_tx] =
2530                 le16_to_cpu(data->qos_seq_ctr);
2531         status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2532         status->num_of_gtk_rekeys =
2533                 le32_to_cpu(data->num_of_gtk_rekeys);
2534         status->received_beacons = le32_to_cpu(data->received_beacons);
2535         status->tid_tear_down = data->tid_tear_down;
2536
2537         if (data->num_mlo_link_keys) {
2538                 status->num_mlo_keys = data->num_mlo_link_keys;
2539                 if (IWL_FW_CHECK(mvm,
2540                                  status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS,
2541                                  "Too many mlo keys: %d, max %d\n",
2542                                  status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS))
2543                         status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS;
2544                 memcpy(status->mlo_keys, data->mlo_gtks,
2545                        status->num_mlo_keys * sizeof(status->mlo_keys[0]));
2546         }
2547 }
2548
2549 static void
2550 iwl_mvm_parse_wowlan_info_notif_v4(struct iwl_mvm *mvm,
2551                                    struct iwl_wowlan_info_notif_v4 *data,
2552                                    struct iwl_wowlan_status_data *status,
2553                                    u32 len, bool has_mlo_keys)
2554 {
2555         u32 i;
2556         u32 expected_len = sizeof(*data);
2557
2558         if (!data) {
2559                 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2560                 status = NULL;
2561                 return;
2562         }
2563
2564         if (has_mlo_keys)
2565                 expected_len += (data->num_mlo_link_keys *
2566                                  sizeof(status->mlo_keys[0]));
2567
2568         if (len < expected_len) {
2569                 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2570                 status = NULL;
2571                 return;
2572         }
2573
2574         if (mvm->fast_resume)
2575                 return;
2576
2577         iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2578         iwl_mvm_convert_gtk_v3(status, data->gtk);
2579         iwl_mvm_convert_igtk(status, &data->igtk[0]);
2580         iwl_mvm_convert_bigtk(status, data->bigtk);
2581         status->replay_ctr = le64_to_cpu(data->replay_ctr);
2582         status->pattern_number = le16_to_cpu(data->pattern_number);
2583         for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2584                 status->qos_seq_ctr[i] =
2585                         le16_to_cpu(data->qos_seq_ctr[i]);
2586         status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2587         status->num_of_gtk_rekeys =
2588                 le32_to_cpu(data->num_of_gtk_rekeys);
2589         status->received_beacons = le32_to_cpu(data->received_beacons);
2590         status->tid_tear_down = data->tid_tear_down;
2591
2592         if (has_mlo_keys && data->num_mlo_link_keys) {
2593                 status->num_mlo_keys = data->num_mlo_link_keys;
2594                 if (IWL_FW_CHECK(mvm,
2595                                  status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS,
2596                                  "Too many mlo keys: %d, max %d\n",
2597                                  status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS))
2598                         status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS;
2599                 memcpy(status->mlo_keys, data->mlo_gtks,
2600                        status->num_mlo_keys * sizeof(status->mlo_keys[0]));
2601         }
2602 }
2603
2604 static void
2605 iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm,
2606                                    struct iwl_wowlan_info_notif_v2 *data,
2607                                    struct iwl_wowlan_status_data *status,
2608                                    u32 len)
2609 {
2610         u32 i;
2611
2612         if (!data) {
2613                 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2614                 status = NULL;
2615                 return;
2616         }
2617
2618         if (len < sizeof(*data)) {
2619                 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2620                 status = NULL;
2621                 return;
2622         }
2623
2624         iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2625         iwl_mvm_convert_gtk_v3(status, data->gtk);
2626         iwl_mvm_convert_igtk(status, &data->igtk[0]);
2627         status->replay_ctr = le64_to_cpu(data->replay_ctr);
2628         status->pattern_number = le16_to_cpu(data->pattern_number);
2629         for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2630                 status->qos_seq_ctr[i] =
2631                         le16_to_cpu(data->qos_seq_ctr[i]);
2632         status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2633         status->num_of_gtk_rekeys =
2634                 le32_to_cpu(data->num_of_gtk_rekeys);
2635         status->received_beacons = le32_to_cpu(data->received_beacons);
2636         status->tid_tear_down = data->tid_tear_down;
2637 }
2638
2639 /* Occasionally, templates would be nice. This is one of those times ... */
2640 #define iwl_mvm_parse_wowlan_status_common(_ver)                        \
2641 static struct iwl_wowlan_status_data *                                  \
2642 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm,        \
2643                                             struct iwl_wowlan_status_ ##_ver *data,\
2644                                             int len)                    \
2645 {                                                                       \
2646         struct iwl_wowlan_status_data *status;                          \
2647         int data_size, i;                                               \
2648                                                                         \
2649         if (len < sizeof(*data)) {                                      \
2650                 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");      \
2651                 return NULL;                                            \
2652         }                                                               \
2653                                                                         \
2654         data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4);   \
2655         if (len != sizeof(*data) + data_size) {                         \
2656                 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");      \
2657                 return NULL;                                            \
2658         }                                                               \
2659                                                                         \
2660         status = kzalloc(sizeof(*status), GFP_KERNEL);                  \
2661         if (!status)                                                    \
2662                 return NULL;                                            \
2663                                                                         \
2664         /* copy all the common fields */                                \
2665         status->replay_ctr = le64_to_cpu(data->replay_ctr);             \
2666         status->pattern_number = le16_to_cpu(data->pattern_number);     \
2667         status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr);   \
2668         for (i = 0; i < 8; i++)                                         \
2669                 status->qos_seq_ctr[i] =                                \
2670                         le16_to_cpu(data->qos_seq_ctr[i]);              \
2671         status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);     \
2672         status->num_of_gtk_rekeys =                                     \
2673                 le32_to_cpu(data->num_of_gtk_rekeys);                   \
2674         status->received_beacons = le32_to_cpu(data->received_beacons); \
2675         status->wake_packet_length =                                    \
2676                 le32_to_cpu(data->wake_packet_length);                  \
2677         status->wake_packet_bufsize =                                   \
2678                 le32_to_cpu(data->wake_packet_bufsize);                 \
2679         if (status->wake_packet_bufsize) {                              \
2680                 status->wake_packet =                                   \
2681                         kmemdup(data->wake_packet,                      \
2682                                 status->wake_packet_bufsize,            \
2683                                 GFP_KERNEL);                            \
2684                 if (!status->wake_packet) {                             \
2685                         kfree(status);                                  \
2686                         return NULL;                                    \
2687                 }                                                       \
2688         } else {                                                        \
2689                 status->wake_packet = NULL;                             \
2690         }                                                               \
2691                                                                         \
2692         return status;                                                  \
2693 }
2694
2695 iwl_mvm_parse_wowlan_status_common(v6)
2696 iwl_mvm_parse_wowlan_status_common(v7)
2697 iwl_mvm_parse_wowlan_status_common(v9)
2698 iwl_mvm_parse_wowlan_status_common(v12)
2699
2700 static struct iwl_wowlan_status_data *
2701 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2702 {
2703         struct iwl_wowlan_status_data *status;
2704         struct iwl_wowlan_get_status_cmd get_status_cmd = {
2705                 .sta_id = cpu_to_le32(sta_id),
2706         };
2707         struct iwl_host_cmd cmd = {
2708                 .id = WOWLAN_GET_STATUSES,
2709                 .flags = CMD_WANT_SKB,
2710                 .data = { &get_status_cmd, },
2711                 .len = { sizeof(get_status_cmd), },
2712         };
2713         int ret, len;
2714         u8 notif_ver;
2715         u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
2716                                            IWL_FW_CMD_VER_UNKNOWN);
2717
2718         if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2719                 cmd.len[0] = 0;
2720
2721         lockdep_assert_held(&mvm->mutex);
2722
2723         ret = iwl_mvm_send_cmd(mvm, &cmd);
2724         if (ret) {
2725                 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2726                 return ERR_PTR(ret);
2727         }
2728
2729         len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2730
2731         /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2732         notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm);
2733
2734         if (notif_ver < 7) {
2735                 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2736
2737                 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
2738                 if (!status)
2739                         goto out_free_resp;
2740
2741                 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
2742                              sizeof(status->gtk[0].key));
2743                 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2744                              sizeof(v6->gtk.tkip_mic_key) >
2745                              sizeof(status->gtk[0].key));
2746
2747                 /* copy GTK info to the right place */
2748                 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
2749                        sizeof(v6->gtk.decrypt_key));
2750                 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2751                        v6->gtk.tkip_mic_key,
2752                        sizeof(v6->gtk.tkip_mic_key));
2753
2754                 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2755
2756                 /* hardcode the key length to 16 since v6 only supports 16 */
2757                 status->gtk[0].len = 16;
2758
2759                 /*
2760                  * The key index only uses 2 bits (values 0 to 3) and
2761                  * we always set bit 7 which means this is the
2762                  * currently used key.
2763                  */
2764                 status->gtk[0].flags = v6->gtk.key_index | BIT(7);
2765         } else if (notif_ver == 7) {
2766                 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2767
2768                 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
2769                 if (!status)
2770                         goto out_free_resp;
2771
2772                 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2773                 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
2774                 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
2775         } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
2776                 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
2777
2778                 /* these three command versions have same layout and size, the
2779                  * difference is only in a few not used (reserved) fields.
2780                  */
2781                 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
2782                 if (!status)
2783                         goto out_free_resp;
2784
2785                 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2786                 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
2787                 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2788
2789                 status->tid_tear_down = v9->tid_tear_down;
2790         } else if (notif_ver == 12) {
2791                 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2792
2793                 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
2794                 if (!status)
2795                         goto out_free_resp;
2796
2797                 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2798                 iwl_mvm_convert_gtk_v3(status, v12->gtk);
2799                 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2800
2801                 status->tid_tear_down = v12->tid_tear_down;
2802         } else {
2803                 IWL_ERR(mvm,
2804                         "Firmware advertises unknown WoWLAN status response %d!\n",
2805                         notif_ver);
2806                 status = NULL;
2807         }
2808
2809 out_free_resp:
2810         iwl_free_resp(&cmd);
2811         return status;
2812 }
2813
2814 /* releases the MVM mutex */
2815 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
2816                                          struct ieee80211_vif *vif,
2817                                          struct iwl_wowlan_status_data *status)
2818 {
2819         int i;
2820         bool keep = false;
2821         struct iwl_mvm_sta *mvm_ap_sta;
2822         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2823         int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
2824         struct iwl_mvm_vif_link_info *mvm_link = mvmvif->link[link_id];
2825         int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
2826                                                       PROT_OFFLOAD_GROUP,
2827                                                       WOWLAN_INFO_NOTIFICATION,
2828                                                       IWL_FW_CMD_VER_UNKNOWN);
2829
2830         if (WARN_ON(!mvm_link))
2831                 goto out_unlock;
2832
2833         if (!status)
2834                 goto out_unlock;
2835
2836         IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
2837                          status->wakeup_reasons);
2838
2839         mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, mvm_link->ap_sta_id);
2840         if (!mvm_ap_sta)
2841                 goto out_unlock;
2842
2843         /* firmware stores last-used value, we store next value */
2844         if (wowlan_info_ver >= 5) {
2845                 mvm_ap_sta->tid_data[status->tid_offloaded_tx].seq_number =
2846                         status->qos_seq_ctr[status->tid_offloaded_tx] + 0x10;
2847         } else {
2848                 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2849                         mvm_ap_sta->tid_data[i].seq_number =
2850                                 status->qos_seq_ctr[i] + 0x10;
2851         }
2852
2853         if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
2854                 i = mvm->offload_tid;
2855                 iwl_trans_set_q_ptrs(mvm->trans,
2856                                      mvm_ap_sta->tid_data[i].txq_id,
2857                                      mvm_ap_sta->tid_data[i].seq_number >> 4);
2858         }
2859
2860         iwl_mvm_report_wakeup_reasons(mvm, vif, status);
2861
2862         keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
2863 out_unlock:
2864         mutex_unlock(&mvm->mutex);
2865         return keep;
2866 }
2867
2868 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2869                           IWL_SCAN_MAX_PROFILES)
2870
2871 struct iwl_mvm_nd_results {
2872         u32 matched_profiles;
2873         u8 matches[ND_QUERY_BUF_LEN];
2874 };
2875
2876 static int
2877 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2878                                 struct iwl_mvm_nd_results *results)
2879 {
2880         struct iwl_scan_offload_match_info *query;
2881         struct iwl_host_cmd cmd = {
2882                 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2883                 .flags = CMD_WANT_SKB,
2884         };
2885         int ret, len;
2886         size_t query_len, matches_len;
2887         int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
2888
2889         ret = iwl_mvm_send_cmd(mvm, &cmd);
2890         if (ret) {
2891                 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
2892                 return ret;
2893         }
2894
2895         if (fw_has_api(&mvm->fw->ucode_capa,
2896                        IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2897                 query_len = sizeof(struct iwl_scan_offload_match_info);
2898                 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2899                         max_profiles;
2900         } else {
2901                 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2902                 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
2903                         max_profiles;
2904         }
2905
2906         len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2907         if (len < query_len) {
2908                 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
2909                 ret = -EIO;
2910                 goto out_free_resp;
2911         }
2912
2913         query = (void *)cmd.resp_pkt->data;
2914
2915         results->matched_profiles = le32_to_cpu(query->matched_profiles);
2916         memcpy(results->matches, query->matches, matches_len);
2917
2918 #ifdef CONFIG_IWLWIFI_DEBUGFS
2919         mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2920 #endif
2921
2922 out_free_resp:
2923         iwl_free_resp(&cmd);
2924         return ret;
2925 }
2926
2927 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2928                                          struct iwl_mvm_nd_results *results,
2929                                          int idx)
2930 {
2931         int n_chans = 0, i;
2932
2933         if (fw_has_api(&mvm->fw->ucode_capa,
2934                        IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2935                 struct iwl_scan_offload_profile_match *matches =
2936                         (void *)results->matches;
2937
2938                 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2939                         n_chans += hweight8(matches[idx].matching_channels[i]);
2940         } else {
2941                 struct iwl_scan_offload_profile_match_v1 *matches =
2942                         (void *)results->matches;
2943
2944                 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2945                         n_chans += hweight8(matches[idx].matching_channels[i]);
2946         }
2947
2948         return n_chans;
2949 }
2950
2951 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2952                                     struct iwl_mvm_nd_results *results,
2953                                     struct cfg80211_wowlan_nd_match *match,
2954                                     int idx)
2955 {
2956         int i;
2957         int n_channels = 0;
2958
2959         if (fw_has_api(&mvm->fw->ucode_capa,
2960                        IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2961                 struct iwl_scan_offload_profile_match *matches =
2962                          (void *)results->matches;
2963
2964                 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2965                         if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2966                                 match->channels[n_channels++] =
2967                                         mvm->nd_channels[i]->center_freq;
2968         } else {
2969                 struct iwl_scan_offload_profile_match_v1 *matches =
2970                          (void *)results->matches;
2971
2972                 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2973                         if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2974                                 match->channels[n_channels++] =
2975                                         mvm->nd_channels[i]->center_freq;
2976         }
2977         /* We may have ended up with fewer channels than we allocated. */
2978         match->n_channels = n_channels;
2979 }
2980
2981 /**
2982  * enum iwl_d3_notif - d3 notifications
2983  * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2984  * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received
2985  * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received
2986  * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received
2987  * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received
2988  */
2989 enum iwl_d3_notif {
2990         IWL_D3_NOTIF_WOWLAN_INFO =      BIT(0),
2991         IWL_D3_NOTIF_WOWLAN_WAKE_PKT =  BIT(1),
2992         IWL_D3_NOTIF_PROT_OFFLOAD =     BIT(2),
2993         IWL_D3_ND_MATCH_INFO      =     BIT(3),
2994         IWL_D3_NOTIF_D3_END_NOTIF =     BIT(4)
2995 };
2996
2997 /* manage d3 resume data */
2998 struct iwl_d3_data {
2999         struct iwl_wowlan_status_data *status;
3000         bool test;
3001         u32 d3_end_flags;
3002         u32 notif_expected;     /* bitmap - see &enum iwl_d3_notif */
3003         u32 notif_received;     /* bitmap - see &enum iwl_d3_notif */
3004         struct iwl_mvm_nd_results *nd_results;
3005         bool nd_results_valid;
3006 };
3007
3008 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
3009                                             struct ieee80211_vif *vif,
3010                                             struct iwl_d3_data *d3_data)
3011 {
3012         struct cfg80211_wowlan_nd_info *net_detect = NULL;
3013         struct cfg80211_wowlan_wakeup wakeup = {
3014                 .pattern_idx = -1,
3015         };
3016         struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
3017         unsigned long matched_profiles;
3018         u32 reasons = 0;
3019         int i, n_matches, ret;
3020
3021         if (WARN_ON(!d3_data || !d3_data->status))
3022                 goto out;
3023
3024         reasons = d3_data->status->wakeup_reasons;
3025
3026         if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
3027                 wakeup.rfkill_release = true;
3028
3029         if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
3030                 goto out;
3031
3032         if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3033                                      WOWLAN_INFO_NOTIFICATION, 0)) {
3034                 IWL_INFO(mvm, "Query FW for ND results\n");
3035                 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results);
3036
3037         } else {
3038                 IWL_INFO(mvm, "Notification based ND results\n");
3039                 ret = d3_data->nd_results_valid ? 0 : -1;
3040         }
3041
3042         if (ret || !d3_data->nd_results->matched_profiles) {
3043                 wakeup_report = NULL;
3044                 goto out;
3045         }
3046
3047         matched_profiles = d3_data->nd_results->matched_profiles;
3048         if (mvm->n_nd_match_sets) {
3049                 n_matches = hweight_long(matched_profiles);
3050         } else {
3051                 IWL_ERR(mvm, "no net detect match information available\n");
3052                 n_matches = 0;
3053         }
3054
3055         net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
3056                              GFP_KERNEL);
3057         if (!net_detect || !n_matches)
3058                 goto out_report_nd;
3059         net_detect->n_matches = n_matches;
3060         n_matches = 0;
3061
3062         for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
3063                 struct cfg80211_wowlan_nd_match *match;
3064                 int idx, n_channels = 0;
3065
3066                 n_channels = iwl_mvm_query_num_match_chans(mvm,
3067                                                            d3_data->nd_results,
3068                                                            i);
3069
3070                 match = kzalloc(struct_size(match, channels, n_channels),
3071                                 GFP_KERNEL);
3072                 if (!match)
3073                         goto out_report_nd;
3074                 match->n_channels = n_channels;
3075
3076                 net_detect->matches[n_matches++] = match;
3077
3078                 /* We inverted the order of the SSIDs in the scan
3079                  * request, so invert the index here.
3080                  */
3081                 idx = mvm->n_nd_match_sets - i - 1;
3082                 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
3083                 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
3084                        match->ssid.ssid_len);
3085
3086                 if (mvm->n_nd_channels < n_channels)
3087                         continue;
3088
3089                 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i);
3090         }
3091         /* We may have fewer matches than we allocated. */
3092         net_detect->n_matches = n_matches;
3093
3094 out_report_nd:
3095         wakeup.net_detect = net_detect;
3096 out:
3097         iwl_mvm_free_nd(mvm);
3098
3099         mutex_unlock(&mvm->mutex);
3100         ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
3101
3102         if (net_detect) {
3103                 for (i = 0; i < net_detect->n_matches; i++)
3104                         kfree(net_detect->matches[i]);
3105                 kfree(net_detect);
3106         }
3107 }
3108
3109 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
3110                                        struct ieee80211_vif *vif)
3111 {
3112         /* skip the one we keep connection on */
3113         if (data == vif)
3114                 return;
3115
3116         if (vif->type == NL80211_IFTYPE_STATION)
3117                 ieee80211_resume_disconnect(vif);
3118 }
3119
3120 static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
3121                                    struct ieee80211_vif *vif)
3122 {
3123         u32 err_id;
3124
3125         /* check for lmac1 error */
3126         if (iwl_fwrt_read_err_table(mvm->trans,
3127                                     mvm->trans->dbg.lmac_error_event_table[0],
3128                                     &err_id)) {
3129                 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN && vif) {
3130                         struct cfg80211_wowlan_wakeup wakeup = {
3131                                 .rfkill_release = true,
3132                         };
3133                         ieee80211_report_wowlan_wakeup(vif, &wakeup,
3134                                                        GFP_KERNEL);
3135                 }
3136                 return true;
3137         }
3138
3139         /* check if we have lmac2 set and check for error */
3140         if (iwl_fwrt_read_err_table(mvm->trans,
3141                                     mvm->trans->dbg.lmac_error_event_table[1],
3142                                     NULL))
3143                 return true;
3144
3145         /* check for umac error */
3146         if (iwl_fwrt_read_err_table(mvm->trans,
3147                                     mvm->trans->dbg.umac_error_event_table,
3148                                     NULL))
3149                 return true;
3150
3151         return false;
3152 }
3153
3154 /*
3155  * This function assumes:
3156  *      1. The mutex is already held.
3157  *      2. The callee functions unlock the mutex.
3158  */
3159 static bool
3160 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
3161                                     struct ieee80211_vif *vif,
3162                                     struct iwl_d3_data *d3_data)
3163 {
3164         lockdep_assert_held(&mvm->mutex);
3165
3166         /* if FW uses status notification, status shouldn't be NULL here */
3167         if (!d3_data->status) {
3168                 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3169                 u8 sta_id = mvm->net_detect ? IWL_INVALID_STA :
3170                                               mvmvif->deflink.ap_sta_id;
3171
3172                 /* bug - FW with MLO has status notification */
3173                 WARN_ON(ieee80211_vif_is_mld(vif));
3174
3175                 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id);
3176         }
3177
3178         if (mvm->net_detect) {
3179                 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data);
3180         } else {
3181                 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
3182                                                          d3_data->status);
3183
3184 #ifdef CONFIG_IWLWIFI_DEBUGFS
3185                 if (keep)
3186                         mvm->keep_vif = vif;
3187 #endif
3188
3189                 return keep;
3190         }
3191         return false;
3192 }
3193
3194 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
3195                                                  IWL_WOWLAN_WAKEUP_BY_PATTERN | \
3196                                                  IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\
3197                                                  IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\
3198                                                  IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\
3199                                                  IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD)
3200
3201 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm,
3202                                          struct iwl_wowlan_wake_pkt_notif *notif,
3203                                          struct iwl_wowlan_status_data *status,
3204                                          u32 len)
3205 {
3206         u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length);
3207
3208         if (len < sizeof(*notif)) {
3209                 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n");
3210                 return -EIO;
3211         }
3212
3213         if (WARN_ON(!status)) {
3214                 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n");
3215                 return -EIO;
3216         }
3217
3218         if (WARN_ON(!(status->wakeup_reasons &
3219                       IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) {
3220                 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n",
3221                         status->wakeup_reasons);
3222                 return -EIO;
3223         }
3224
3225         data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet);
3226
3227         /* data_size got the padding from the notification, remove it. */
3228         if (packet_len < data_size)
3229                 data_size = packet_len;
3230
3231         status->wake_packet = kmemdup(notif->wake_packet, data_size,
3232                                       GFP_ATOMIC);
3233
3234         if (!status->wake_packet)
3235                 return -ENOMEM;
3236
3237         status->wake_packet_length = packet_len;
3238         status->wake_packet_bufsize = data_size;
3239
3240         return 0;
3241 }
3242
3243 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
3244                                           struct iwl_d3_data *d3_data,
3245                                           struct iwl_scan_offload_match_info *notif,
3246                                           u32 len)
3247 {
3248         struct iwl_wowlan_status_data *status = d3_data->status;
3249         struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
3250         struct iwl_mvm_nd_results *results = d3_data->nd_results;
3251         size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) *
3252                 iwl_umac_scan_get_max_profiles(mvm->fw);
3253
3254         if (IS_ERR_OR_NULL(vif))
3255                 return;
3256
3257         if (len < sizeof(struct iwl_scan_offload_match_info)) {
3258                 IWL_ERR(mvm, "Invalid scan match info notification\n");
3259                 return;
3260         }
3261
3262         if (!mvm->net_detect) {
3263                 IWL_ERR(mvm, "Unexpected scan match info notification\n");
3264                 return;
3265         }
3266
3267         if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
3268                 IWL_ERR(mvm,
3269                         "Ignore scan match info notification: no reason\n");
3270                 return;
3271         }
3272
3273 #ifdef CONFIG_IWLWIFI_DEBUGFS
3274         mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done);
3275 #endif
3276
3277         results->matched_profiles = le32_to_cpu(notif->matched_profiles);
3278         IWL_INFO(mvm, "number of matched profiles=%u\n",
3279                  results->matched_profiles);
3280
3281         if (results->matched_profiles) {
3282                 memcpy(results->matches, notif->matches, matches_len);
3283                 d3_data->nd_results_valid = true;
3284         }
3285
3286         /* no scan should be active at this point */
3287         mvm->scan_status = 0;
3288         for (i = 0; i < mvm->max_scans; i++)
3289                 mvm->scan_uid_status[i] = 0;
3290 }
3291
3292 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
3293                                   struct iwl_rx_packet *pkt, void *data)
3294 {
3295         struct iwl_mvm *mvm =
3296                 container_of(notif_wait, struct iwl_mvm, notif_wait);
3297         struct iwl_d3_data *d3_data = data;
3298         u32 len = iwl_rx_packet_payload_len(pkt);
3299         int ret;
3300         int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
3301                                                       PROT_OFFLOAD_GROUP,
3302                                                       WOWLAN_INFO_NOTIFICATION,
3303                                                       IWL_FW_CMD_VER_UNKNOWN);
3304
3305
3306         switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
3307         case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
3308
3309                 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
3310                         /* We might get two notifications due to dual bss */
3311                         IWL_DEBUG_WOWLAN(mvm,
3312                                          "Got additional wowlan info notification\n");
3313                         break;
3314                 }
3315
3316                 if (wowlan_info_ver < 2) {
3317                         struct iwl_wowlan_info_notif_v1 *notif_v1 =
3318                                 (void *)pkt->data;
3319                         struct iwl_wowlan_info_notif_v2 *notif_v2;
3320
3321                         notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC);
3322
3323                         if (!notif_v2)
3324                                 return false;
3325
3326                         notif_v2->tid_tear_down = notif_v1->tid_tear_down;
3327                         notif_v2->station_id = notif_v1->station_id;
3328                         memset_after(notif_v2, 0, station_id);
3329                         iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3330                                                            d3_data->status,
3331                                                            len);
3332                         kfree(notif_v2);
3333
3334                 } else if (wowlan_info_ver == 2) {
3335                         struct iwl_wowlan_info_notif_v2 *notif_v2 =
3336                                 (void *)pkt->data;
3337
3338                         iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3339                                                            d3_data->status,
3340                                                            len);
3341                 } else if (wowlan_info_ver < 5) {
3342                         struct iwl_wowlan_info_notif_v4 *notif =
3343                                 (void *)pkt->data;
3344
3345                         iwl_mvm_parse_wowlan_info_notif_v4(mvm, notif,
3346                                                            d3_data->status, len,
3347                                                            wowlan_info_ver > 3);
3348                 } else {
3349                         struct iwl_wowlan_info_notif *notif =
3350                                 (void *)pkt->data;
3351
3352                         iwl_mvm_parse_wowlan_info_notif(mvm, notif,
3353                                                         d3_data->status, len);
3354                 }
3355
3356                 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
3357
3358                 if (d3_data->status &&
3359                     d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT)
3360                         /* We are supposed to get also wake packet notif */
3361                         d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3362
3363                 break;
3364         }
3365         case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): {
3366                 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data;
3367
3368                 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) {
3369                         /* We shouldn't get two wake packet notifications */
3370                         IWL_ERR(mvm,
3371                                 "Got additional wowlan wake packet notification\n");
3372                 } else {
3373                         d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3374                         len =  iwl_rx_packet_payload_len(pkt);
3375                         ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif,
3376                                                             d3_data->status,
3377                                                             len);
3378                         if (ret)
3379                                 IWL_ERR(mvm,
3380                                         "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n");
3381                 }
3382
3383                 break;
3384         }
3385         case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): {
3386                 struct iwl_scan_offload_match_info *notif = (void *)pkt->data;
3387
3388                 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) {
3389                         IWL_ERR(mvm,
3390                                 "Got additional netdetect match info\n");
3391                         break;
3392                 }
3393
3394                 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO;
3395
3396                 /* explicitly set this in the 'expected' as well */
3397                 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO;
3398
3399                 len = iwl_rx_packet_payload_len(pkt);
3400                 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len);
3401                 break;
3402         }
3403         case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): {
3404                 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data;
3405
3406                 d3_data->d3_end_flags = __le32_to_cpu(notif->flags);
3407                 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF;
3408
3409                 break;
3410         }
3411         default:
3412                 WARN_ON(1);
3413         }
3414
3415         return d3_data->notif_received == d3_data->notif_expected;
3416 }
3417
3418 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test)
3419 {
3420         int ret;
3421         enum iwl_d3_status d3_status;
3422         struct iwl_host_cmd cmd = {
3423                         .id = D0I3_END_CMD,
3424                         .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
3425                 };
3426         bool reset = fw_has_capa(&mvm->fw->ucode_capa,
3427                                  IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3428
3429         ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset);
3430         if (ret)
3431                 return ret;
3432
3433         if (d3_status != IWL_D3_STATUS_ALIVE) {
3434                 IWL_INFO(mvm, "Device was reset during suspend\n");
3435                 return -ENOENT;
3436         }
3437
3438         /*
3439          * We should trigger resume flow using command only for 22000 family
3440          * AX210 and above don't need the command since they have
3441          * the doorbell interrupt.
3442          */
3443         if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 &&
3444             fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) {
3445                 ret = iwl_mvm_send_cmd(mvm, &cmd);
3446                 if (ret < 0)
3447                         IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
3448                                 ret);
3449         }
3450
3451         return ret;
3452 }
3453
3454 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 3)
3455
3456 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
3457                                  struct iwl_d3_data *d3_data)
3458 {
3459         static const u16 d3_resume_notif[] = {
3460                 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION),
3461                 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION),
3462                 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF),
3463                 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3464         };
3465         static const u16 d3_fast_resume_notif[] = {
3466                 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3467         };
3468         struct iwl_notification_wait wait_d3_notif;
3469         int ret;
3470
3471         if (mvm->fast_resume)
3472                 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3473                                            d3_fast_resume_notif,
3474                                            ARRAY_SIZE(d3_fast_resume_notif),
3475                                            iwl_mvm_wait_d3_notif, d3_data);
3476         else
3477                 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3478                                            d3_resume_notif,
3479                                            ARRAY_SIZE(d3_resume_notif),
3480                                            iwl_mvm_wait_d3_notif, d3_data);
3481
3482         ret = iwl_mvm_resume_firmware(mvm, d3_data->test);
3483         if (ret) {
3484                 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
3485                 return ret;
3486         }
3487
3488         return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
3489                                      IWL_MVM_D3_NOTIF_TIMEOUT);
3490 }
3491
3492 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm)
3493 {
3494         return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3495                                        WOWLAN_INFO_NOTIFICATION, 0) &&
3496                 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3497                                         WOWLAN_WAKE_PKT_NOTIFICATION, 0) &&
3498                 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3499                                         D3_END_NOTIFICATION, 0);
3500 }
3501
3502 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
3503 {
3504         struct ieee80211_vif *vif = NULL;
3505         int ret = 1;
3506         struct iwl_mvm_nd_results results = {};
3507         struct iwl_d3_data d3_data = {
3508                 .test = test,
3509                 .notif_expected =
3510                         IWL_D3_NOTIF_WOWLAN_INFO |
3511                         IWL_D3_NOTIF_D3_END_NOTIF,
3512                 .nd_results_valid = false,
3513                 .nd_results = &results,
3514         };
3515         bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3516                                          IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3517         bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
3518                                       IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
3519         bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
3520         bool keep = false;
3521
3522         mutex_lock(&mvm->mutex);
3523
3524         /* Apparently, the device went away and device_powered_off() was called,
3525          * don't even try to read the rt_status, the device is currently
3526          * inaccessible.
3527          */
3528         if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
3529                 IWL_INFO(mvm,
3530                          "Can't resume, device_powered_off() was called during wowlan\n");
3531                 goto err;
3532         }
3533
3534         mvm->last_reset_or_resume_time_jiffies = jiffies;
3535
3536         /* get the BSS vif pointer again */
3537         vif = iwl_mvm_get_bss_vif(mvm);
3538         if (IS_ERR_OR_NULL(vif))
3539                 goto err;
3540
3541         iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3542
3543         if (iwl_mvm_check_rt_status(mvm, vif)) {
3544                 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3545                 iwl_mvm_dump_nic_error_log(mvm);
3546                 iwl_dbg_tlv_time_point(&mvm->fwrt,
3547                                        IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3548                 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3549                                         false, 0);
3550                 ret = 1;
3551                 goto err;
3552         }
3553
3554         if (resume_notif_based) {
3555                 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
3556                 if (!d3_data.status) {
3557                         IWL_ERR(mvm, "Failed to allocate wowlan status\n");
3558                         ret = -ENOMEM;
3559                         goto err;
3560                 }
3561
3562                 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3563                 if (ret)
3564                         goto err;
3565         } else {
3566                 ret = iwl_mvm_resume_firmware(mvm, test);
3567                 if (ret < 0)
3568                         goto err;
3569         }
3570
3571         iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN);
3572
3573         /* after the successful handshake, we're out of D3 */
3574         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3575
3576         /* when reset is required we can't send these following commands */
3577         if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)
3578                 goto query_wakeup_reasons;
3579
3580         /*
3581          * Query the current location and source from the D3 firmware so we
3582          * can play it back when we re-intiailize the D0 firmware
3583          */
3584         iwl_mvm_update_changed_regdom(mvm);
3585
3586         /* Re-configure PPAG settings */
3587         iwl_mvm_ppag_send_cmd(mvm);
3588
3589         if (!unified_image)
3590                 /*  Re-configure default SAR profile */
3591                 iwl_mvm_sar_select_profile(mvm, 1, 1);
3592
3593         if (mvm->net_detect && unified_image) {
3594                 /* If this is a non-unified image, we restart the FW,
3595                  * so no need to stop the netdetect scan.  If that
3596                  * fails, continue and try to get the wake-up reasons,
3597                  * but trigger a HW restart by keeping a failure code
3598                  * in ret.
3599                  */
3600                 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
3601                                         false);
3602         }
3603
3604 query_wakeup_reasons:
3605         keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
3606         /* has unlocked the mutex, so skip that */
3607         goto out;
3608
3609 err:
3610         mutex_unlock(&mvm->mutex);
3611 out:
3612         if (d3_data.status)
3613                 kfree(d3_data.status->wake_packet);
3614         kfree(d3_data.status);
3615         iwl_mvm_free_nd(mvm);
3616
3617         if (!d3_data.test && !mvm->net_detect)
3618                 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
3619                                                         IEEE80211_IFACE_ITER_NORMAL,
3620                                                         iwl_mvm_d3_disconnect_iter,
3621                                                         keep ? vif : NULL);
3622
3623         clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3624
3625         /* no need to reset the device in unified images, if successful */
3626         if (unified_image && !ret) {
3627                 /* nothing else to do if we already sent D0I3_END_CMD */
3628                 if (d0i3_first)
3629                         return 0;
3630
3631                 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3632                                              D3_END_NOTIFICATION, 0)) {
3633                         ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
3634                         if (!ret)
3635                                 return 0;
3636                 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) {
3637                         return 0;
3638                 }
3639         }
3640
3641         /*
3642          * Reconfigure the device in one of the following cases:
3643          * 1. We are not using a unified image
3644          * 2. We are using a unified image but had an error while exiting D3
3645          */
3646         set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
3647
3648         /* regardless of what happened, we're now out of D3 */
3649         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3650
3651         return 1;
3652 }
3653
3654 int iwl_mvm_resume(struct ieee80211_hw *hw)
3655 {
3656         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3657         int ret;
3658
3659         ret = __iwl_mvm_resume(mvm, false);
3660
3661         iwl_mvm_resume_tcm(mvm);
3662
3663         iwl_fw_runtime_resume(&mvm->fwrt);
3664
3665         return ret;
3666 }
3667
3668 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
3669 {
3670         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3671
3672         device_set_wakeup_enable(mvm->trans->dev, enabled);
3673 }
3674
3675 void iwl_mvm_fast_suspend(struct iwl_mvm *mvm)
3676 {
3677         struct iwl_d3_manager_config d3_cfg_cmd_data = {};
3678         int ret;
3679
3680         lockdep_assert_held(&mvm->mutex);
3681
3682         IWL_DEBUG_WOWLAN(mvm, "Starting fast suspend flow\n");
3683
3684         mvm->fast_resume = true;
3685         set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3686
3687         WARN_ON(iwl_mvm_power_update_device(mvm));
3688         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
3689         ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SEND_IN_D3,
3690                                    sizeof(d3_cfg_cmd_data), &d3_cfg_cmd_data);
3691         if (ret)
3692                 IWL_ERR(mvm,
3693                         "fast suspend: couldn't send D3_CONFIG_CMD %d\n", ret);
3694
3695         ret = iwl_trans_d3_suspend(mvm->trans, false, false);
3696         if (ret)
3697                 IWL_ERR(mvm, "fast suspend: trans_d3_suspend failed %d\n", ret);
3698 }
3699
3700 int iwl_mvm_fast_resume(struct iwl_mvm *mvm)
3701 {
3702         struct iwl_d3_data d3_data = {
3703                 .notif_expected =
3704                         IWL_D3_NOTIF_D3_END_NOTIF,
3705         };
3706         int ret;
3707
3708         lockdep_assert_held(&mvm->mutex);
3709
3710         IWL_DEBUG_WOWLAN(mvm, "Starting the fast resume flow\n");
3711
3712         mvm->last_reset_or_resume_time_jiffies = jiffies;
3713         iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3714
3715         if (iwl_mvm_check_rt_status(mvm, NULL)) {
3716                 IWL_ERR(mvm,
3717                         "iwl_mvm_check_rt_status failed, device is gone during suspend\n");
3718                 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3719                 iwl_mvm_dump_nic_error_log(mvm);
3720                 iwl_dbg_tlv_time_point(&mvm->fwrt,
3721                                        IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3722                 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3723                                         false, 0);
3724                 mvm->trans->state = IWL_TRANS_NO_FW;
3725                 ret = -ENODEV;
3726
3727                 goto out;
3728         }
3729         ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3730
3731         if (ret) {
3732                 IWL_ERR(mvm, "Couldn't get the d3 notif %d\n", ret);
3733                 mvm->trans->state = IWL_TRANS_NO_FW;
3734         }
3735
3736 out:
3737         clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3738         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3739         mvm->fast_resume = false;
3740
3741         return ret;
3742 }
3743
3744 #ifdef CONFIG_IWLWIFI_DEBUGFS
3745 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
3746 {
3747         struct iwl_mvm *mvm = inode->i_private;
3748         int err;
3749
3750         if (mvm->d3_test_active)
3751                 return -EBUSY;
3752
3753         file->private_data = inode->i_private;
3754
3755         iwl_mvm_pause_tcm(mvm, true);
3756
3757         iwl_fw_runtime_suspend(&mvm->fwrt);
3758
3759         /* start pseudo D3 */
3760         rtnl_lock();
3761         wiphy_lock(mvm->hw->wiphy);
3762         err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
3763         wiphy_unlock(mvm->hw->wiphy);
3764         rtnl_unlock();
3765         if (err > 0)
3766                 err = -EINVAL;
3767         if (err)
3768                 return err;
3769
3770         mvm->d3_test_active = true;
3771         mvm->keep_vif = NULL;
3772         return 0;
3773 }
3774
3775 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
3776                                     size_t count, loff_t *ppos)
3777 {
3778         struct iwl_mvm *mvm = file->private_data;
3779         unsigned long end = jiffies + 60 * HZ;
3780         u32 pme_asserted;
3781
3782         while (true) {
3783                 /* read pme_ptr if available */
3784                 if (mvm->d3_test_pme_ptr) {
3785                         pme_asserted = iwl_trans_read_mem32(mvm->trans,
3786                                                 mvm->d3_test_pme_ptr);
3787                         if (pme_asserted)
3788                                 break;
3789                 }
3790
3791                 if (msleep_interruptible(100))
3792                         break;
3793
3794                 if (time_is_before_jiffies(end)) {
3795                         IWL_ERR(mvm,
3796                                 "ending pseudo-D3 with timeout after ~60 seconds\n");
3797                         return -ETIMEDOUT;
3798                 }
3799         }
3800
3801         return 0;
3802 }
3803
3804 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
3805                                               struct ieee80211_vif *vif)
3806 {
3807         /* skip the one we keep connection on */
3808         if (_data == vif)
3809                 return;
3810
3811         if (vif->type == NL80211_IFTYPE_STATION)
3812                 ieee80211_connection_loss(vif);
3813 }
3814
3815 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
3816 {
3817         struct iwl_mvm *mvm = inode->i_private;
3818         bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3819                                          IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3820
3821         mvm->d3_test_active = false;
3822
3823         iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3824
3825         rtnl_lock();
3826         wiphy_lock(mvm->hw->wiphy);
3827         __iwl_mvm_resume(mvm, true);
3828         wiphy_unlock(mvm->hw->wiphy);
3829         rtnl_unlock();
3830
3831         iwl_mvm_resume_tcm(mvm);
3832
3833         iwl_fw_runtime_resume(&mvm->fwrt);
3834
3835         iwl_abort_notification_waits(&mvm->notif_wait);
3836         if (!unified_image) {
3837                 int remaining_time = 10;
3838
3839                 ieee80211_restart_hw(mvm->hw);
3840
3841                 /* wait for restart and disconnect all interfaces */
3842                 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3843                        remaining_time > 0) {
3844                         remaining_time--;
3845                         msleep(1000);
3846                 }
3847
3848                 if (remaining_time == 0)
3849                         IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
3850         }
3851
3852         ieee80211_iterate_active_interfaces_atomic(
3853                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
3854                 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
3855
3856         return 0;
3857 }
3858
3859 const struct file_operations iwl_dbgfs_d3_test_ops = {
3860         .open = iwl_mvm_d3_test_open,
3861         .read = iwl_mvm_d3_test_read,
3862         .release = iwl_mvm_d3_test_release,
3863 };
3864 #endif