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 19void 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) 41void 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 66void 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 74static 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 82static 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 104struct wowlan_key_reprogram_data { 105 bool error; 106 int wep_key_idx; 107}; 108 109static 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 214struct wowlan_key_rsc_tsc_data { 215 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc; 216 bool have_rsc_tsc; 217}; 218 219static 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 331struct 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 338static 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 452static 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 520struct wowlan_key_tkip_data { 521 struct iwl_wowlan_tkip_params_cmd tkip; 522 bool have_tkip_keys; 523}; 524 525static 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 587struct wowlan_key_gtk_type_iter { 588 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd; 589}; 590 591static 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; 598 599 switch (key->cipher) { 600 default: 601 return; 602 case WLAN_CIPHER_SUITE_TKIP: 603 if (!sta) 604 data->kek_kck_cmd->gtk_cipher = 605 cpu_to_le32(STA_KEY_FLG_TKIP); 606 return; 607 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 608 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 609 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP); 610 return; 611 case WLAN_CIPHER_SUITE_AES_CMAC: 612 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM); 613 return; 614 case WLAN_CIPHER_SUITE_CCMP: 615 if (!sta) 616 data->kek_kck_cmd->gtk_cipher = 617 cpu_to_le32(STA_KEY_FLG_CCM); 618 return; 619 case WLAN_CIPHER_SUITE_GCMP: 620 case WLAN_CIPHER_SUITE_GCMP_256: 621 if (!sta) 622 data->kek_kck_cmd->gtk_cipher = 623 cpu_to_le32(STA_KEY_FLG_GCMP); 624 return; 625 } 626} 627 628static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm, 629 struct cfg80211_wowlan *wowlan) 630{ 631 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd; 632 struct iwl_host_cmd cmd = { 633 .id = WOWLAN_PATTERNS, 634 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 635 }; 636 int i, err; 637 638 if (!wowlan->n_patterns) 639 return 0; 640 641 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns); 642 643 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); 644 if (!pattern_cmd) 645 return -ENOMEM; 646 647 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); 648 649 for (i = 0; i < wowlan->n_patterns; i++) { 650 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 651 652 memcpy(&pattern_cmd->patterns[i].mask, 653 wowlan->patterns[i].mask, mask_len); 654 memcpy(&pattern_cmd->patterns[i].pattern, 655 wowlan->patterns[i].pattern, 656 wowlan->patterns[i].pattern_len); 657 pattern_cmd->patterns[i].mask_size = mask_len; 658 pattern_cmd->patterns[i].pattern_size = 659 wowlan->patterns[i].pattern_len; 660 } 661 662 cmd.data[0] = pattern_cmd; 663 err = iwl_mvm_send_cmd(mvm, &cmd); 664 kfree(pattern_cmd); 665 return err; 666} 667 668static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, 669 struct iwl_mvm_vif_link_info *mvm_link, 670 struct cfg80211_wowlan *wowlan) 671{ 672 struct iwl_wowlan_patterns_cmd *pattern_cmd; 673 struct iwl_host_cmd cmd = { 674 .id = WOWLAN_PATTERNS, 675 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 676 }; 677 int i, err; 678 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 679 IWL_FW_CMD_VER_UNKNOWN); 680 681 if (!wowlan->n_patterns) 682 return 0; 683 684 cmd.len[0] = sizeof(*pattern_cmd) + 685 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2); 686 687 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL); 688 if (!pattern_cmd) 689 return -ENOMEM; 690 691 pattern_cmd->n_patterns = wowlan->n_patterns; 692 if (ver >= 3) 693 pattern_cmd->sta_id = mvm_link->ap_sta_id; 694 695 for (i = 0; i < wowlan->n_patterns; i++) { 696 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 697 698 pattern_cmd->patterns[i].pattern_type = 699 WOWLAN_PATTERN_TYPE_BITMASK; 700 701 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask, 702 wowlan->patterns[i].mask, mask_len); 703 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern, 704 wowlan->patterns[i].pattern, 705 wowlan->patterns[i].pattern_len); 706 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len; 707 pattern_cmd->patterns[i].u.bitmask.pattern_size = 708 wowlan->patterns[i].pattern_len; 709 } 710 711 cmd.data[0] = pattern_cmd; 712 err = iwl_mvm_send_cmd(mvm, &cmd); 713 kfree(pattern_cmd); 714 return err; 715} 716 717static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 718 struct ieee80211_sta *ap_sta) 719{ 720 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 721 struct ieee80211_chanctx_conf *ctx; 722 u8 chains_static, chains_dynamic; 723 struct cfg80211_chan_def chandef, ap_def; 724 int ret, i; 725 struct iwl_binding_cmd_v1 binding_cmd = {}; 726 struct iwl_time_quota_cmd quota_cmd = {}; 727 struct iwl_time_quota_data *quota; 728 u32 status; 729 730 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm) || 731 ieee80211_vif_is_mld(vif))) 732 return -EINVAL; 733 734 /* add back the PHY */ 735 if (WARN_ON(!mvmvif->deflink.phy_ctxt)) 736 return -EINVAL; 737 738 rcu_read_lock(); 739 ctx = rcu_dereference(vif->bss_conf.chanctx_conf); 740 if (WARN_ON(!ctx)) { 741 rcu_read_unlock(); 742 return -EINVAL; 743 } 744 chandef = ctx->def; 745 ap_def = ctx->ap; 746 chains_static = ctx->rx_chains_static; 747 chains_dynamic = ctx->rx_chains_dynamic; 748 rcu_read_unlock(); 749 750 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef, 751 &ap_def, chains_static, chains_dynamic); 752 if (ret) 753 return ret; 754 755 /* add back the MAC */ 756 mvmvif->uploaded = false; 757 758 if (WARN_ON(!vif->cfg.assoc)) 759 return -EINVAL; 760 761 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 762 if (ret) 763 return ret; 764 765 /* add back binding - XXX refactor? */ 766 binding_cmd.id_and_color = 767 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 768 mvmvif->deflink.phy_ctxt->color)); 769 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); 770 binding_cmd.phy = 771 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 772 mvmvif->deflink.phy_ctxt->color)); 773 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 774 mvmvif->color)); 775 for (i = 1; i < MAX_MACS_IN_BINDING; i++) 776 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); 777 778 status = 0; 779 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, 780 IWL_BINDING_CMD_SIZE_V1, &binding_cmd, 781 &status); 782 if (ret) { 783 IWL_ERR(mvm, "Failed to add binding: %d\n", ret); 784 return ret; 785 } 786 787 if (status) { 788 IWL_ERR(mvm, "Binding command failed: %u\n", status); 789 return -EIO; 790 } 791 792 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0); 793 if (ret) 794 return ret; 795 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id], 796 ap_sta); 797 798 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 799 if (ret) 800 return ret; 801 802 /* and some quota */ 803 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0); 804 quota->id_and_color = 805 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 806 mvmvif->deflink.phy_ctxt->color)); 807 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); 808 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); 809 810 for (i = 1; i < MAX_BINDINGS; i++) { 811 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i); 812 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID); 813 } 814 815 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, 816 iwl_mvm_quota_cmd_size(mvm), "a_cmd); 817 if (ret) 818 IWL_ERR(mvm, "Failed to send quota: %d\n", ret); 819 820 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false)) 821 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); 822 823 return 0; 824} 825 826static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, 827 struct ieee80211_vif *vif) 828{ 829 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 830 struct iwl_nonqos_seq_query_cmd query_cmd = { 831 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), 832 .mac_id_n_color = 833 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 834 mvmvif->color)), 835 }; 836 struct iwl_host_cmd cmd = { 837 .id = NON_QOS_TX_COUNTER_CMD, 838 .flags = CMD_WANT_SKB, 839 }; 840 int err; 841 u32 size; 842 843 cmd.data[0] = &query_cmd; 844 cmd.len[0] = sizeof(query_cmd); 845 846 err = iwl_mvm_send_cmd(mvm, &cmd); 847 if (err) 848 return err; 849 850 size = iwl_rx_packet_payload_len(cmd.resp_pkt); 851 if (size < sizeof(__le16)) { 852 err = -EINVAL; 853 } else { 854 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); 855 /* firmware returns next, not last-used seqno */ 856 err = (u16) (err - 0x10); 857 } 858 859 iwl_free_resp(&cmd); 860 return err; 861} 862 863void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 864{ 865 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 866 struct iwl_nonqos_seq_query_cmd query_cmd = { 867 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), 868 .mac_id_n_color = 869 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 870 mvmvif->color)), 871 .value = cpu_to_le16(mvmvif->seqno), 872 }; 873 874 /* return if called during restart, not resume from D3 */ 875 if (!mvmvif->seqno_valid) 876 return; 877 878 mvmvif->seqno_valid = false; 879 880 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, 881 sizeof(query_cmd), &query_cmd)) 882 IWL_ERR(mvm, "failed to set non-QoS seqno\n"); 883} 884 885static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) 886{ 887 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 888 889 iwl_mvm_stop_device(mvm); 890 /* 891 * Set the HW restart bit -- this is mostly true as we're 892 * going to load new firmware and reprogram that, though 893 * the reprogramming is going to be manual to avoid adding 894 * all the MACs that aren't support. 895 * We don't have to clear up everything though because the 896 * reprogramming is manual. When we resume, we'll actually 897 * go through a proper restart sequence again to switch 898 * back to the runtime firmware image. 899 */ 900 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 901 902 /* the fw is reset, so all the keys are cleared */ 903 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 904 905 mvm->ptk_ivlen = 0; 906 mvm->ptk_icvlen = 0; 907 mvm->ptk_ivlen = 0; 908 mvm->ptk_icvlen = 0; 909 910 return iwl_mvm_load_d3_fw(mvm); 911} 912 913static int 914iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, 915 struct cfg80211_wowlan *wowlan, 916 struct iwl_wowlan_config_cmd *wowlan_config_cmd, 917 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 918 struct ieee80211_sta *ap_sta) 919{ 920 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); 921 922 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ 923 924 wowlan_config_cmd->is_11n_connection = 925 ap_sta->deflink.ht_cap.ht_supported; 926 wowlan_config_cmd->flags = ENABLE_L3_FILTERING | 927 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; 928 929 if (ap_sta->mfp) 930 wowlan_config_cmd->flags |= IS_11W_ASSOC; 931 932 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) { 933 /* Query the last used seqno and set it */ 934 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); 935 936 if (ret < 0) 937 return ret; 938 939 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); 940 } 941 942 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); 943 944 if (wowlan->disconnect) 945 wowlan_config_cmd->wakeup_filter |= 946 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 947 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 948 if (wowlan->magic_pkt) 949 wowlan_config_cmd->wakeup_filter |= 950 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); 951 if (wowlan->gtk_rekey_failure) 952 wowlan_config_cmd->wakeup_filter |= 953 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); 954 if (wowlan->eap_identity_req) 955 wowlan_config_cmd->wakeup_filter |= 956 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); 957 if (wowlan->four_way_handshake) 958 wowlan_config_cmd->wakeup_filter |= 959 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); 960 if (wowlan->n_patterns) 961 wowlan_config_cmd->wakeup_filter |= 962 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); 963 964 if (wowlan->rfkill_release) 965 wowlan_config_cmd->wakeup_filter |= 966 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); 967 968 if (wowlan->tcp) { 969 /* 970 * Set the "link change" (really "link lost") flag as well 971 * since that implies losing the TCP connection. 972 */ 973 wowlan_config_cmd->wakeup_filter |= 974 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | 975 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | 976 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | 977 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 978 } 979 980 if (wowlan->any) { 981 wowlan_config_cmd->wakeup_filter |= 982 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 983 IWL_WOWLAN_WAKEUP_LINK_CHANGE | 984 IWL_WOWLAN_WAKEUP_RX_FRAME | 985 IWL_WOWLAN_WAKEUP_BCN_FILTERING); 986 } 987 988 return 0; 989} 990 991static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, 992 struct ieee80211_vif *vif, 993 struct iwl_mvm_vif_link_info *mvm_link) 994{ 995 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 996 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 997 struct wowlan_key_reprogram_data key_data = {}; 998 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 999 int ret; 1000 u8 cmd_ver; 1001 size_t cmd_size; 1002 1003 if (!unified) { 1004 /* 1005 * if we have to configure keys, call ieee80211_iter_keys(), 1006 * as we need non-atomic context in order to take the 1007 * required locks. 1008 */ 1009 /* 1010 * Note that currently we don't use CMD_ASYNC in the iterator. 1011 * In case of key_data.configure_keys, all the configured 1012 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will 1013 * take care of locking/unlocking mvm->mutex. 1014 */ 1015 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys, 1016 &key_data); 1017 1018 if (key_data.error) 1019 return -EIO; 1020 } 1021 1022 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link); 1023 if (ret) 1024 return ret; 1025 1026 if (!fw_has_api(&mvm->fw->ucode_capa, 1027 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) { 1028 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM, 1029 IWL_FW_CMD_VER_UNKNOWN); 1030 struct wowlan_key_tkip_data tkip_data = {}; 1031 int size; 1032 1033 if (ver == 2) { 1034 size = sizeof(tkip_data.tkip); 1035 tkip_data.tkip.sta_id = 1036 cpu_to_le32(mvm_link->ap_sta_id); 1037 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) { 1038 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1); 1039 } else { 1040 WARN_ON_ONCE(1); 1041 return -EINVAL; 1042 } 1043 1044 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data, 1045 &tkip_data); 1046 1047 if (tkip_data.have_tkip_keys) { 1048 /* send relevant data according to CMD version */ 1049 ret = iwl_mvm_send_cmd_pdu(mvm, 1050 WOWLAN_TKIP_PARAM, 1051 CMD_ASYNC, size, 1052 &tkip_data.tkip); 1053 if (ret) 1054 return ret; 1055 } 1056 } 1057 1058 /* configure rekey data only if offloaded rekey is supported (d3) */ 1059 if (mvmvif->rekey_data.valid) { 1060 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {}; 1061 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd = 1062 &kek_kck_cmd; 1063 struct wowlan_key_gtk_type_iter gtk_type_data = { 1064 .kek_kck_cmd = _kek_kck_cmd, 1065 }; 1066 1067 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1068 WOWLAN_KEK_KCK_MATERIAL, 1069 IWL_FW_CMD_VER_UNKNOWN); 1070 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 && 1071 cmd_ver != IWL_FW_CMD_VER_UNKNOWN)) 1072 return -EINVAL; 1073 1074 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter, 1075 >k_type_data); 1076 1077 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, 1078 mvmvif->rekey_data.kck_len); 1079 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len); 1080 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, 1081 mvmvif->rekey_data.kek_len); 1082 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len); 1083 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; 1084 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm); 1085 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id); 1086 1087 if (cmd_ver == 4) { 1088 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4); 1089 } else { 1090 if (cmd_ver == 3) 1091 cmd_size = 1092 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3); 1093 else 1094 cmd_size = 1095 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2); 1096 /* skip the sta_id at the beginning */ 1097 _kek_kck_cmd = (void *) 1098 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id)); 1099 } 1100 1101 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n", 1102 mvmvif->rekey_data.akm); 1103 1104 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL, 1105 CMD_ASYNC, cmd_size, _kek_kck_cmd); 1106 if (ret) 1107 return ret; 1108 } 1109 1110 return 0; 1111} 1112 1113static int 1114iwl_mvm_wowlan_config(struct iwl_mvm *mvm, 1115 struct cfg80211_wowlan *wowlan, 1116 struct iwl_wowlan_config_cmd *wowlan_config_cmd, 1117 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 1118 struct iwl_mvm_vif_link_info *mvm_link, 1119 struct ieee80211_sta *ap_sta) 1120{ 1121 int ret; 1122 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1123 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1124 1125 mvm->offload_tid = wowlan_config_cmd->offloading_tid; 1126 1127 if (!unified_image) { 1128 ret = iwl_mvm_switch_to_d3(mvm); 1129 if (ret) 1130 return ret; 1131 1132 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); 1133 if (ret) 1134 return ret; 1135 } 1136 1137 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link); 1138 if (ret) 1139 return ret; 1140 1141 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1142 sizeof(*wowlan_config_cmd), 1143 wowlan_config_cmd); 1144 if (ret) 1145 return ret; 1146 1147 if (fw_has_api(&mvm->fw->ucode_capa, 1148 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE)) 1149 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan); 1150 else 1151 ret = iwl_mvm_send_patterns_v1(mvm, wowlan); 1152 if (ret) 1153 return ret; 1154 1155 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0); 1156} 1157 1158static int 1159iwl_mvm_netdetect_config(struct iwl_mvm *mvm, 1160 struct cfg80211_wowlan *wowlan, 1161 struct cfg80211_sched_scan_request *nd_config, 1162 struct ieee80211_vif *vif) 1163{ 1164 int ret; 1165 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1166 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1167 1168 if (!unified_image) { 1169 ret = iwl_mvm_switch_to_d3(mvm); 1170 if (ret) 1171 return ret; 1172 } else { 1173 /* In theory, we wouldn't have to stop a running sched 1174 * scan in order to start another one (for 1175 * net-detect). But in practice this doesn't seem to 1176 * work properly, so stop any running sched_scan now. 1177 */ 1178 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 1179 if (ret) 1180 return ret; 1181 } 1182 1183 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, 1184 IWL_MVM_SCAN_NETDETECT); 1185 if (ret) 1186 return ret; 1187 1188 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) 1189 return -EBUSY; 1190 1191 /* save the sched scan matchsets... */ 1192 if (nd_config->n_match_sets) { 1193 mvm->nd_match_sets = kmemdup(nd_config->match_sets, 1194 sizeof(*nd_config->match_sets) * 1195 nd_config->n_match_sets, 1196 GFP_KERNEL); 1197 if (mvm->nd_match_sets) 1198 mvm->n_nd_match_sets = nd_config->n_match_sets; 1199 } 1200 1201 /* ...and the sched scan channels for later reporting */ 1202 mvm->nd_channels = kmemdup(nd_config->channels, 1203 sizeof(*nd_config->channels) * 1204 nd_config->n_channels, 1205 GFP_KERNEL); 1206 if (mvm->nd_channels) 1207 mvm->n_nd_channels = nd_config->n_channels; 1208 1209 return 0; 1210} 1211 1212static void iwl_mvm_free_nd(struct iwl_mvm *mvm) 1213{ 1214 kfree(mvm->nd_match_sets); 1215 mvm->nd_match_sets = NULL; 1216 mvm->n_nd_match_sets = 0; 1217 kfree(mvm->nd_channels); 1218 mvm->nd_channels = NULL; 1219 mvm->n_nd_channels = 0; 1220} 1221 1222static int __iwl_mvm_suspend(struct ieee80211_hw *hw, 1223 struct cfg80211_wowlan *wowlan, 1224 bool test) 1225{ 1226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1227 struct ieee80211_vif *vif = NULL; 1228 struct iwl_mvm_vif *mvmvif = NULL; 1229 struct ieee80211_sta *ap_sta = NULL; 1230 struct iwl_mvm_vif_link_info *mvm_link; 1231 struct iwl_d3_manager_config d3_cfg_cmd_data = { 1232 /* 1233 * Program the minimum sleep time to 10 seconds, as many 1234 * platforms have issues processing a wakeup signal while 1235 * still being in the process of suspending. 1236 */ 1237 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), 1238 }; 1239 struct iwl_host_cmd d3_cfg_cmd = { 1240 .id = D3_CONFIG_CMD, 1241 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3, 1242 .data[0] = &d3_cfg_cmd_data, 1243 .len[0] = sizeof(d3_cfg_cmd_data), 1244 }; 1245 int ret, primary_link; 1246 int len __maybe_unused; 1247 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1248 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1249 1250 if (!wowlan) { 1251 /* 1252 * mac80211 shouldn't get here, but for D3 test 1253 * it doesn't warrant a warning 1254 */ 1255 WARN_ON(!test); 1256 return -EINVAL; 1257 } 1258 1259 vif = iwl_mvm_get_bss_vif(mvm); 1260 if (IS_ERR_OR_NULL(vif)) 1261 return 1; 1262 1263 if (hweight16(vif->active_links) > 1) { 1264 /* 1265 * Select the 'best' link. 1266 * May need to revisit, it seems better to not optimize 1267 * for throughput but rather range, reliability and 1268 * power here - and select 2.4 GHz ... 1269 */ 1270 primary_link = iwl_mvm_mld_get_primary_link(mvm, vif, 1271 vif->active_links); 1272 1273 if (WARN_ONCE(primary_link < 0, "no primary link in 0x%x\n", 1274 vif->active_links)) 1275 primary_link = __ffs(vif->active_links); 1276 1277 ret = ieee80211_set_active_links(vif, BIT(primary_link)); 1278 if (ret) 1279 return ret; 1280 } else if (vif->active_links) { 1281 primary_link = __ffs(vif->active_links); 1282 } else { 1283 primary_link = 0; 1284 } 1285 1286 mutex_lock(&mvm->mutex); 1287 1288 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1289 1290 synchronize_net(); 1291 1292 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1293 1294 mvm_link = mvmvif->link[primary_link]; 1295 if (WARN_ON_ONCE(!mvm_link)) { 1296 ret = -EINVAL; 1297 goto out_noreset; 1298 } 1299 1300 if (mvm_link->ap_sta_id == IWL_MVM_INVALID_STA) { 1301 /* if we're not associated, this must be netdetect */ 1302 if (!wowlan->nd_config) { 1303 ret = 1; 1304 goto out_noreset; 1305 } 1306 1307 ret = iwl_mvm_netdetect_config( 1308 mvm, wowlan, wowlan->nd_config, vif); 1309 if (ret) 1310 goto out; 1311 1312 mvm->net_detect = true; 1313 } else { 1314 struct iwl_wowlan_config_cmd wowlan_config_cmd = { 1315 .offloading_tid = 0, 1316 }; 1317 1318 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id; 1319 1320 ap_sta = rcu_dereference_protected( 1321 mvm->fw_id_to_mac_id[mvm_link->ap_sta_id], 1322 lockdep_is_held(&mvm->mutex)); 1323 if (IS_ERR_OR_NULL(ap_sta)) { 1324 ret = -EINVAL; 1325 goto out_noreset; 1326 } 1327 1328 ret = iwl_mvm_sta_ensure_queue( 1329 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]); 1330 if (ret) 1331 goto out_noreset; 1332 1333 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1334 vif, mvmvif, ap_sta); 1335 if (ret) 1336 goto out_noreset; 1337 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1338 vif, mvmvif, mvm_link, ap_sta); 1339 if (ret) 1340 goto out; 1341 1342 mvm->net_detect = false; 1343 } 1344 1345 ret = iwl_mvm_power_update_device(mvm); 1346 if (ret) 1347 goto out; 1348 1349 ret = iwl_mvm_power_update_mac(mvm); 1350 if (ret) 1351 goto out; 1352 1353#ifdef CONFIG_IWLWIFI_DEBUGFS 1354 if (mvm->d3_wake_sysassert) 1355 d3_cfg_cmd_data.wakeup_flags |= 1356 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); 1357#endif 1358 1359 /* 1360 * Prior to 9000 device family the driver needs to stop the dbg 1361 * recording before entering D3. In later devices the FW stops the 1362 * recording automatically. 1363 */ 1364 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) 1365 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true); 1366 1367 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; 1368 1369 /* must be last -- this switches firmware state */ 1370 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); 1371 if (ret) 1372 goto out; 1373#ifdef CONFIG_IWLWIFI_DEBUGFS 1374 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); 1375 if (len >= sizeof(u32)) { 1376 mvm->d3_test_pme_ptr = 1377 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); 1378 } 1379#endif 1380 iwl_free_resp(&d3_cfg_cmd); 1381 1382 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1383 1384 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image); 1385 out: 1386 if (ret < 0) { 1387 iwl_mvm_free_nd(mvm); 1388 1389 if (!unified_image) { 1390 if (mvm->fw_restart > 0) { 1391 mvm->fw_restart--; 1392 ieee80211_restart_hw(mvm->hw); 1393 } 1394 } 1395 1396 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1397 } 1398 out_noreset: 1399 mutex_unlock(&mvm->mutex); 1400 1401 return ret; 1402} 1403 1404int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) 1405{ 1406 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1407 1408 iwl_mvm_pause_tcm(mvm, true); 1409 1410 iwl_fw_runtime_suspend(&mvm->fwrt); 1411 1412 return __iwl_mvm_suspend(hw, wowlan, false); 1413} 1414 1415struct iwl_multicast_key_data { 1416 u8 key[WOWLAN_KEY_MAX_SIZE]; 1417 u8 len; 1418 u8 flags; 1419 u8 id; 1420 u8 ipn[6]; 1421}; 1422 1423/* converted data from the different status responses */ 1424struct iwl_wowlan_status_data { 1425 u64 replay_ctr; 1426 u32 num_of_gtk_rekeys; 1427 u32 received_beacons; 1428 u32 wakeup_reasons; 1429 u32 wake_packet_length; 1430 u32 wake_packet_bufsize; 1431 u16 pattern_number; 1432 u16 non_qos_seq_ctr; 1433 u16 qos_seq_ctr[8]; 1434 u8 tid_tear_down; 1435 1436 struct { 1437 /* including RX MIC key for TKIP */ 1438 u8 key[WOWLAN_KEY_MAX_SIZE]; 1439 u8 len; 1440 u8 flags; 1441 u8 id; 1442 } gtk[WOWLAN_GTK_KEYS_NUM]; 1443 1444 struct { 1445 /* 1446 * We store both the TKIP and AES representations 1447 * coming from the firmware because we decode the 1448 * data from there before we iterate the keys and 1449 * know which one we need. 1450 */ 1451 struct { 1452 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1453 } tkip, aes; 1454 1455 /* 1456 * We use -1 for when we have valid data but don't know 1457 * the key ID from firmware, and thus it needs to be 1458 * installed with the last key (depending on rekeying). 1459 */ 1460 s8 key_id; 1461 bool valid; 1462 } gtk_seq[2]; 1463 1464 struct { 1465 /* Same as above */ 1466 struct { 1467 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1468 u64 tx_pn; 1469 } tkip, aes; 1470 } ptk; 1471 1472 struct iwl_multicast_key_data igtk; 1473 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM]; 1474 1475 u8 *wake_packet; 1476}; 1477 1478static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, 1479 struct ieee80211_vif *vif, 1480 struct iwl_wowlan_status_data *status) 1481{ 1482 struct sk_buff *pkt = NULL; 1483 struct cfg80211_wowlan_wakeup wakeup = { 1484 .pattern_idx = -1, 1485 }; 1486 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 1487 u32 reasons = status->wakeup_reasons; 1488 1489 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 1490 wakeup_report = NULL; 1491 goto report; 1492 } 1493 1494 pm_wakeup_event(mvm->dev, 0); 1495 1496 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) 1497 wakeup.magic_pkt = true; 1498 1499 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) 1500 wakeup.pattern_idx = 1501 status->pattern_number; 1502 1503 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 1504 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH | 1505 IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)) 1506 wakeup.disconnect = true; 1507 1508 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) 1509 wakeup.gtk_rekey_failure = true; 1510 1511 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 1512 wakeup.rfkill_release = true; 1513 1514 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) 1515 wakeup.eap_identity_req = true; 1516 1517 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) 1518 wakeup.four_way_handshake = true; 1519 1520 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) 1521 wakeup.tcp_connlost = true; 1522 1523 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) 1524 wakeup.tcp_nomoretokens = true; 1525 1526 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) 1527 wakeup.tcp_match = true; 1528 1529 if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC) 1530 wakeup.unprot_deauth_disassoc = true; 1531 1532 if (status->wake_packet) { 1533 int pktsize = status->wake_packet_bufsize; 1534 int pktlen = status->wake_packet_length; 1535 const u8 *pktdata = status->wake_packet; 1536 const struct ieee80211_hdr *hdr = (const void *)pktdata; 1537 int truncated = pktlen - pktsize; 1538 1539 /* this would be a firmware bug */ 1540 if (WARN_ON_ONCE(truncated < 0)) 1541 truncated = 0; 1542 1543 if (ieee80211_is_data(hdr->frame_control)) { 1544 int hdrlen = ieee80211_hdrlen(hdr->frame_control); 1545 int ivlen = 0, icvlen = 4; /* also FCS */ 1546 1547 pkt = alloc_skb(pktsize, GFP_KERNEL); 1548 if (!pkt) 1549 goto report; 1550 1551 skb_put_data(pkt, pktdata, hdrlen); 1552 pktdata += hdrlen; 1553 pktsize -= hdrlen; 1554 1555 if (ieee80211_has_protected(hdr->frame_control)) { 1556 /* 1557 * This is unlocked and using gtk_i(c)vlen, 1558 * but since everything is under RTNL still 1559 * that's not really a problem - changing 1560 * it would be difficult. 1561 */ 1562 if (is_multicast_ether_addr(hdr->addr1)) { 1563 ivlen = mvm->gtk_ivlen; 1564 icvlen += mvm->gtk_icvlen; 1565 } else { 1566 ivlen = mvm->ptk_ivlen; 1567 icvlen += mvm->ptk_icvlen; 1568 } 1569 } 1570 1571 /* if truncated, FCS/ICV is (partially) gone */ 1572 if (truncated >= icvlen) { 1573 icvlen = 0; 1574 truncated -= icvlen; 1575 } else { 1576 icvlen -= truncated; 1577 truncated = 0; 1578 } 1579 1580 pktsize -= ivlen + icvlen; 1581 pktdata += ivlen; 1582 1583 skb_put_data(pkt, pktdata, pktsize); 1584 1585 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) 1586 goto report; 1587 wakeup.packet = pkt->data; 1588 wakeup.packet_present_len = pkt->len; 1589 wakeup.packet_len = pkt->len - truncated; 1590 wakeup.packet_80211 = false; 1591 } else { 1592 int fcslen = 4; 1593 1594 if (truncated >= 4) { 1595 truncated -= 4; 1596 fcslen = 0; 1597 } else { 1598 fcslen -= truncated; 1599 truncated = 0; 1600 } 1601 pktsize -= fcslen; 1602 wakeup.packet = status->wake_packet; 1603 wakeup.packet_present_len = pktsize; 1604 wakeup.packet_len = pktlen - truncated; 1605 wakeup.packet_80211 = true; 1606 } 1607 } 1608 1609 report: 1610 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 1611 kfree_skb(pkt); 1612} 1613 1614static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1615{ 1616 u64 pn = le64_to_cpu(le_pn); 1617 1618 seq->ccmp.pn[0] = pn >> 40; 1619 seq->ccmp.pn[1] = pn >> 32; 1620 seq->ccmp.pn[2] = pn >> 24; 1621 seq->ccmp.pn[3] = pn >> 16; 1622 seq->ccmp.pn[4] = pn >> 8; 1623 seq->ccmp.pn[5] = pn; 1624} 1625 1626static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, 1627 struct ieee80211_key_seq *seq) 1628{ 1629 iwl_mvm_le64_to_aes_seq(sc->pn, seq); 1630} 1631 1632static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1633{ 1634 u64 pn = le64_to_cpu(le_pn); 1635 1636 seq->tkip.iv16 = (u16)pn; 1637 seq->tkip.iv32 = (u32)(pn >> 16); 1638} 1639 1640static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, 1641 struct ieee80211_key_seq *seq) 1642{ 1643 seq->tkip.iv32 = le32_to_cpu(sc->iv32); 1644 seq->tkip.iv16 = le16_to_cpu(sc->iv16); 1645} 1646 1647static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key, 1648 struct ieee80211_key_seq *seq) 1649{ 1650 int tid; 1651 1652 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) 1653 ieee80211_set_key_rx_seq(key, tid, &seq[tid]); 1654} 1655 1656static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm, 1657 struct iwl_wowlan_status_data *status, 1658 struct ieee80211_sta *sta, 1659 struct ieee80211_key_conf *key) 1660{ 1661 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1662 struct iwl_mvm_key_pn *ptk_pn; 1663 int tid; 1664 1665 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq); 1666 1667 if (!iwl_mvm_has_new_rx_api(mvm)) 1668 return; 1669 1670 1671 rcu_read_lock(); 1672 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 1673 if (WARN_ON(!ptk_pn)) { 1674 rcu_read_unlock(); 1675 return; 1676 } 1677 1678 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1679 int i; 1680 1681 for (i = 1; i < mvm->trans->num_rx_queues; i++) 1682 memcpy(ptk_pn->q[i].pn[tid], 1683 status->ptk.aes.seq[tid].ccmp.pn, 1684 IEEE80211_CCMP_PN_LEN); 1685 } 1686 rcu_read_unlock(); 1687} 1688 1689static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status, 1690 union iwl_all_tsc_rsc *sc) 1691{ 1692 int i; 1693 1694 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1695 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1696 1697 /* GTK RX counters */ 1698 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1699 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i], 1700 &status->gtk_seq[0].tkip.seq[i]); 1701 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i], 1702 &status->gtk_seq[0].aes.seq[i]); 1703 } 1704 status->gtk_seq[0].valid = true; 1705 status->gtk_seq[0].key_id = -1; 1706 1707 /* PTK TX counter */ 1708 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) | 1709 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16); 1710 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn); 1711 1712 /* PTK RX counters */ 1713 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1714 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i], 1715 &status->ptk.tkip.seq[i]); 1716 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i], 1717 &status->ptk.aes.seq[i]); 1718 } 1719} 1720 1721static void 1722iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status, 1723 struct iwl_wowlan_all_rsc_tsc_v5 *sc, 1724 unsigned int idx, unsigned int key_id) 1725{ 1726 int tid; 1727 1728 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1729 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid], 1730 &status->gtk_seq[idx].tkip.seq[tid]); 1731 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid], 1732 &status->gtk_seq[idx].aes.seq[tid]); 1733 } 1734 1735 status->gtk_seq[idx].valid = true; 1736 status->gtk_seq[idx].key_id = key_id; 1737} 1738 1739static void 1740iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status, 1741 struct iwl_wowlan_all_rsc_tsc_v5 *sc) 1742{ 1743 int i, tid; 1744 1745 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1746 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1747 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq)); 1748 1749 /* GTK RX counters */ 1750 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) { 1751 u8 entry = sc->mcast_key_id_map[i]; 1752 1753 if (entry < ARRAY_SIZE(sc->mcast_rsc)) 1754 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc, 1755 entry, i); 1756 } 1757 1758 /* PTK TX counters not needed, assigned in device */ 1759 1760 /* PTK RX counters */ 1761 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1762 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid], 1763 &status->ptk.tkip.seq[tid]); 1764 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid], 1765 &status->ptk.aes.seq[tid]); 1766 } 1767} 1768 1769static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key, 1770 struct iwl_wowlan_status_data *status, 1771 int idx) 1772{ 1773 switch (key->cipher) { 1774 case WLAN_CIPHER_SUITE_CCMP: 1775 case WLAN_CIPHER_SUITE_GCMP: 1776 case WLAN_CIPHER_SUITE_GCMP_256: 1777 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq); 1778 break; 1779 case WLAN_CIPHER_SUITE_TKIP: 1780 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq); 1781 break; 1782 default: 1783 WARN_ON(1); 1784 } 1785} 1786 1787static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, 1788 struct iwl_wowlan_status_data *status, 1789 bool installed) 1790{ 1791 int i; 1792 1793 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) { 1794 if (!status->gtk_seq[i].valid) 1795 continue; 1796 1797 /* Handle the case where we know the key ID */ 1798 if (status->gtk_seq[i].key_id == key->keyidx) { 1799 s8 new_key_id = -1; 1800 1801 if (status->num_of_gtk_rekeys) 1802 new_key_id = status->gtk[0].flags & 1803 IWL_WOWLAN_GTK_IDX_MASK; 1804 1805 /* Don't install a new key's value to an old key */ 1806 if (new_key_id != key->keyidx) 1807 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1808 continue; 1809 } 1810 1811 /* handle the case where we didn't, last key only */ 1812 if (status->gtk_seq[i].key_id == -1 && 1813 (!status->num_of_gtk_rekeys || installed)) 1814 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1815 } 1816} 1817 1818struct iwl_mvm_d3_gtk_iter_data { 1819 struct iwl_mvm *mvm; 1820 struct iwl_wowlan_status_data *status; 1821 u32 gtk_cipher, igtk_cipher, bigtk_cipher; 1822 bool unhandled_cipher, igtk_support, bigtk_support; 1823 int num_keys; 1824}; 1825 1826static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw, 1827 struct ieee80211_vif *vif, 1828 struct ieee80211_sta *sta, 1829 struct ieee80211_key_conf *key, 1830 void *_data) 1831{ 1832 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1833 1834 if (data->unhandled_cipher) 1835 return; 1836 1837 switch (key->cipher) { 1838 case WLAN_CIPHER_SUITE_WEP40: 1839 case WLAN_CIPHER_SUITE_WEP104: 1840 /* ignore WEP completely, nothing to do */ 1841 return; 1842 case WLAN_CIPHER_SUITE_CCMP: 1843 case WLAN_CIPHER_SUITE_GCMP: 1844 case WLAN_CIPHER_SUITE_GCMP_256: 1845 case WLAN_CIPHER_SUITE_TKIP: 1846 /* we support these */ 1847 data->gtk_cipher = key->cipher; 1848 break; 1849 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1850 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1851 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1852 case WLAN_CIPHER_SUITE_AES_CMAC: 1853 /* we support these */ 1854 if (data->igtk_support && 1855 (key->keyidx == 4 || key->keyidx == 5)) { 1856 data->igtk_cipher = key->cipher; 1857 } else if (data->bigtk_support && 1858 (key->keyidx == 6 || key->keyidx == 7)) { 1859 data->bigtk_cipher = key->cipher; 1860 } else { 1861 data->unhandled_cipher = true; 1862 return; 1863 } 1864 break; 1865 default: 1866 /* everything else - disconnect from AP */ 1867 data->unhandled_cipher = true; 1868 return; 1869 } 1870 1871 data->num_keys++; 1872} 1873 1874static void 1875iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key, 1876 struct ieee80211_key_seq *seq, u32 cipher) 1877{ 1878 switch (cipher) { 1879 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1880 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1881 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn)); 1882 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn)); 1883 break; 1884 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1885 case WLAN_CIPHER_SUITE_AES_CMAC: 1886 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn)); 1887 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn)); 1888 break; 1889 default: 1890 WARN_ON(1); 1891 } 1892} 1893 1894static void 1895iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status, 1896 struct ieee80211_key_conf *key, 1897 struct iwl_multicast_key_data *key_data) 1898{ 1899 if (status->num_of_gtk_rekeys && key_data->len) { 1900 /* remove rekeyed key */ 1901 ieee80211_remove_key(key); 1902 } else { 1903 struct ieee80211_key_seq seq; 1904 1905 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, 1906 &seq, 1907 key->cipher); 1908 ieee80211_set_key_rx_seq(key, 0, &seq); 1909 } 1910} 1911 1912static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, 1913 struct ieee80211_vif *vif, 1914 struct ieee80211_sta *sta, 1915 struct ieee80211_key_conf *key, 1916 void *_data) 1917{ 1918 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1919 struct iwl_wowlan_status_data *status = data->status; 1920 s8 keyidx; 1921 1922 if (data->unhandled_cipher) 1923 return; 1924 1925 switch (key->cipher) { 1926 case WLAN_CIPHER_SUITE_WEP40: 1927 case WLAN_CIPHER_SUITE_WEP104: 1928 /* ignore WEP completely, nothing to do */ 1929 return; 1930 case WLAN_CIPHER_SUITE_CCMP: 1931 case WLAN_CIPHER_SUITE_GCMP: 1932 case WLAN_CIPHER_SUITE_GCMP_256: 1933 if (sta) { 1934 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn); 1935 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key); 1936 return; 1937 } 1938 fallthrough; 1939 case WLAN_CIPHER_SUITE_TKIP: 1940 if (sta) { 1941 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn); 1942 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq); 1943 return; 1944 } 1945 keyidx = key->keyidx; 1946 /* The current key is always sent by the FW, even if it wasn't 1947 * rekeyed during D3. 1948 * We remove an existing key if it has the same index as 1949 * a new key 1950 */ 1951 if (status->num_of_gtk_rekeys && 1952 ((status->gtk[0].len && keyidx == status->gtk[0].id) || 1953 (status->gtk[1].len && keyidx == status->gtk[1].id))) { 1954 ieee80211_remove_key(key); 1955 } else { 1956 iwl_mvm_set_key_rx_seq(key, data->status, false); 1957 } 1958 break; 1959 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1960 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1961 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1962 case WLAN_CIPHER_SUITE_AES_CMAC: 1963 if (key->keyidx == 4 || key->keyidx == 5) { 1964 iwl_mvm_d3_update_igtk_bigtk(status, key, 1965 &status->igtk); 1966 } 1967 if (key->keyidx == 6 || key->keyidx == 7) { 1968 u8 idx = key->keyidx == status->bigtk[1].id; 1969 1970 iwl_mvm_d3_update_igtk_bigtk(status, key, 1971 &status->bigtk[idx]); 1972 } 1973 } 1974} 1975 1976static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status, 1977 struct ieee80211_vif *vif, 1978 struct iwl_mvm *mvm, u32 gtk_cipher) 1979{ 1980 int i, j; 1981 struct ieee80211_key_conf *key; 1982 struct { 1983 struct ieee80211_key_conf conf; 1984 u8 key[32]; 1985 } conf = { 1986 .conf.cipher = gtk_cipher, 1987 }; 1988 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1989 1990 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP); 1991 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP); 1992 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256); 1993 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP); 1994 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key)); 1995 1996 switch (gtk_cipher) { 1997 case WLAN_CIPHER_SUITE_CCMP: 1998 case WLAN_CIPHER_SUITE_GCMP: 1999 conf.conf.keylen = WLAN_KEY_LEN_CCMP; 2000 break; 2001 case WLAN_CIPHER_SUITE_GCMP_256: 2002 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256; 2003 break; 2004 case WLAN_CIPHER_SUITE_TKIP: 2005 conf.conf.keylen = WLAN_KEY_LEN_TKIP; 2006 break; 2007 default: 2008 WARN_ON(1); 2009 } 2010 2011 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) { 2012 if (!status->gtk[i].len) 2013 continue; 2014 2015 conf.conf.keyidx = status->gtk[i].id; 2016 IWL_DEBUG_WOWLAN(mvm, 2017 "Received from FW GTK cipher %d, key index %d\n", 2018 conf.conf.cipher, conf.conf.keyidx); 2019 memcpy(conf.conf.key, status->gtk[i].key, 2020 sizeof(status->gtk[i].key)); 2021 2022 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id); 2023 if (IS_ERR(key)) 2024 return false; 2025 2026 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) { 2027 if (!status->gtk_seq[j].valid || 2028 status->gtk_seq[j].key_id != key->keyidx) 2029 continue; 2030 iwl_mvm_set_key_rx_seq_idx(key, status, j); 2031 break; 2032 } 2033 WARN_ON(j == ARRAY_SIZE(status->gtk_seq)); 2034 } 2035 2036 return true; 2037} 2038 2039static bool 2040iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status, 2041 struct ieee80211_vif *vif, u32 cipher, 2042 struct iwl_multicast_key_data *key_data) 2043{ 2044 struct ieee80211_key_conf *key_config; 2045 struct { 2046 struct ieee80211_key_conf conf; 2047 u8 key[WOWLAN_KEY_MAX_SIZE]; 2048 } conf = { 2049 .conf.cipher = cipher, 2050 .conf.keyidx = key_data->id, 2051 }; 2052 struct ieee80211_key_seq seq; 2053 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 2054 2055 if (!key_data->len) 2056 return true; 2057 2058 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher); 2059 2060 switch (cipher) { 2061 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 2062 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128; 2063 break; 2064 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 2065 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256; 2066 break; 2067 case WLAN_CIPHER_SUITE_AES_CMAC: 2068 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC; 2069 break; 2070 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 2071 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256; 2072 break; 2073 default: 2074 WARN_ON(1); 2075 } 2076 BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key)); 2077 memcpy(conf.conf.key, key_data->key, conf.conf.keylen); 2078 2079 key_config = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id); 2080 if (IS_ERR(key_config)) 2081 return false; 2082 ieee80211_set_key_rx_seq(key_config, 0, &seq); 2083 2084 if (key_config->keyidx == 4 || key_config->keyidx == 5) { 2085 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2086 struct iwl_mvm_vif_link_info *mvm_link; 2087 2088 link_id = link_id < 0 ? 0 : link_id; 2089 mvm_link = mvmvif->link[link_id]; 2090 mvm_link->igtk = key_config; 2091 } 2092 2093 return true; 2094} 2095 2096static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm) 2097{ 2098 u8 notif_ver; 2099 2100 if (!fw_has_api(&mvm->fw->ucode_capa, 2101 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) 2102 return 6; 2103 2104 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2105 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2106 WOWLAN_GET_STATUSES, 0); 2107 if (!notif_ver) 2108 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 2109 WOWLAN_GET_STATUSES, 7); 2110 2111 return notif_ver; 2112} 2113 2114static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, 2115 struct ieee80211_vif *vif, 2116 struct iwl_wowlan_status_data *status) 2117{ 2118 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2119 struct iwl_mvm_d3_gtk_iter_data gtkdata = { 2120 .mvm = mvm, 2121 .status = status, 2122 }; 2123 int i; 2124 u32 disconnection_reasons = 2125 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 2126 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; 2127 2128 if (!status || !vif->bss_conf.bssid) 2129 return false; 2130 2131 if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 || 2132 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2133 WOWLAN_INFO_NOTIFICATION, 2134 0)) 2135 gtkdata.igtk_support = true; 2136 2137 if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2138 WOWLAN_INFO_NOTIFICATION, 2139 0) >= 3) 2140 gtkdata.bigtk_support = true; 2141 2142 /* find last GTK that we used initially, if any */ 2143 ieee80211_iter_keys(mvm->hw, vif, 2144 iwl_mvm_d3_find_last_keys, >kdata); 2145 /* not trying to keep connections with MFP/unhandled ciphers */ 2146 if (gtkdata.unhandled_cipher) 2147 return false; 2148 if (!gtkdata.num_keys) 2149 goto out; 2150 2151 /* 2152 * invalidate all other GTKs that might still exist and update 2153 * the one that we used 2154 */ 2155 ieee80211_iter_keys(mvm->hw, vif, 2156 iwl_mvm_d3_update_keys, >kdata); 2157 2158 if (status->num_of_gtk_rekeys) { 2159 __be64 replay_ctr = cpu_to_be64(status->replay_ctr); 2160 2161 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n", 2162 status->num_of_gtk_rekeys); 2163 2164 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher)) 2165 return false; 2166 2167 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2168 gtkdata.igtk_cipher, 2169 &status->igtk)) 2170 return false; 2171 2172 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) { 2173 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2174 gtkdata.bigtk_cipher, 2175 &status->bigtk[i])) 2176 return false; 2177 } 2178 2179 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, 2180 (void *)&replay_ctr, GFP_KERNEL); 2181 } 2182 2183out: 2184 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2185 WOWLAN_GET_STATUSES, 0) < 10) { 2186 mvmvif->seqno_valid = true; 2187 /* +0x10 because the set API expects next-to-use, not last-used */ 2188 mvmvif->seqno = status->non_qos_seq_ctr + 0x10; 2189 } 2190 2191 if (status->wakeup_reasons & disconnection_reasons) 2192 return false; 2193 2194 return true; 2195} 2196 2197static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, 2198 struct iwl_wowlan_gtk_status_v2 *data) 2199{ 2200 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key)); 2201 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2202 sizeof(data->tkip_mic_key) > 2203 sizeof(status->gtk[0].key)); 2204 2205 status->gtk[0].len = data->key_len; 2206 status->gtk[0].flags = data->key_flags; 2207 2208 memcpy(status->gtk[0].key, data->key, sizeof(data->key)); 2209 2210 /* if it's as long as the TKIP encryption key, copy MIC key */ 2211 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2212 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2213 data->tkip_mic_key, sizeof(data->tkip_mic_key)); 2214} 2215 2216static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, 2217 struct iwl_wowlan_gtk_status_v3 *data) 2218{ 2219 int data_idx, status_idx = 0; 2220 2221 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key)); 2222 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2223 sizeof(data[0].tkip_mic_key) > 2224 sizeof(status->gtk[0].key)); 2225 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM); 2226 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) { 2227 if (!(data[data_idx].key_len)) 2228 continue; 2229 status->gtk[status_idx].len = data[data_idx].key_len; 2230 status->gtk[status_idx].flags = data[data_idx].key_flags; 2231 status->gtk[status_idx].id = status->gtk[status_idx].flags & 2232 IWL_WOWLAN_GTK_IDX_MASK; 2233 2234 memcpy(status->gtk[status_idx].key, data[data_idx].key, 2235 sizeof(data[data_idx].key)); 2236 2237 /* if it's as long as the TKIP encryption key, copy MIC key */ 2238 if (status->gtk[status_idx].len == 2239 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2240 memcpy(status->gtk[status_idx].key + 2241 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2242 data[data_idx].tkip_mic_key, 2243 sizeof(data[data_idx].tkip_mic_key)); 2244 status_idx++; 2245 } 2246} 2247 2248static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, 2249 struct iwl_wowlan_igtk_status *data) 2250{ 2251 int i; 2252 2253 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); 2254 BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn)); 2255 2256 if (!data->key_len) 2257 return; 2258 2259 status->igtk.len = data->key_len; 2260 status->igtk.flags = data->key_flags; 2261 status->igtk.id = u32_get_bits(data->key_flags, 2262 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2263 + WOWLAN_IGTK_MIN_INDEX; 2264 2265 memcpy(status->igtk.key, data->key, sizeof(data->key)); 2266 2267 /* mac80211 expects big endian for memcmp() to work, convert */ 2268 for (i = 0; i < sizeof(data->ipn); i++) 2269 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1]; 2270} 2271 2272static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status, 2273 const struct iwl_wowlan_igtk_status *data) 2274{ 2275 int data_idx, status_idx = 0; 2276 2277 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM); 2278 2279 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) { 2280 if (!data[data_idx].key_len) 2281 continue; 2282 2283 status->bigtk[status_idx].len = data[data_idx].key_len; 2284 status->bigtk[status_idx].flags = data[data_idx].key_flags; 2285 status->bigtk[status_idx].id = 2286 u32_get_bits(data[data_idx].key_flags, 2287 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2288 + WOWLAN_BIGTK_MIN_INDEX; 2289 2290 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) < 2291 sizeof(data[data_idx].key)); 2292 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) < 2293 sizeof(data[data_idx].ipn)); 2294 2295 memcpy(status->bigtk[status_idx].key, data[data_idx].key, 2296 sizeof(data[data_idx].key)); 2297 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn, 2298 sizeof(data[data_idx].ipn)); 2299 status_idx++; 2300 } 2301} 2302 2303static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, 2304 struct iwl_wowlan_info_notif *data, 2305 struct iwl_wowlan_status_data *status, 2306 u32 len) 2307{ 2308 u32 i; 2309 2310 if (!data) { 2311 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); 2312 status = NULL; 2313 return; 2314 } 2315 2316 if (len < sizeof(*data)) { 2317 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2318 status = NULL; 2319 return; 2320 } 2321 2322 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2323 iwl_mvm_convert_gtk_v3(status, data->gtk); 2324 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2325 iwl_mvm_convert_bigtk(status, data->bigtk); 2326 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2327 status->pattern_number = le16_to_cpu(data->pattern_number); 2328 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2329 status->qos_seq_ctr[i] = 2330 le16_to_cpu(data->qos_seq_ctr[i]); 2331 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2332 status->num_of_gtk_rekeys = 2333 le32_to_cpu(data->num_of_gtk_rekeys); 2334 status->received_beacons = le32_to_cpu(data->received_beacons); 2335 status->tid_tear_down = data->tid_tear_down; 2336} 2337 2338static void 2339iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm, 2340 struct iwl_wowlan_info_notif_v2 *data, 2341 struct iwl_wowlan_status_data *status, 2342 u32 len) 2343{ 2344 u32 i; 2345 2346 if (!data) { 2347 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); 2348 status = NULL; 2349 return; 2350 } 2351 2352 if (len < sizeof(*data)) { 2353 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2354 status = NULL; 2355 return; 2356 } 2357 2358 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2359 iwl_mvm_convert_gtk_v3(status, data->gtk); 2360 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2361 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2362 status->pattern_number = le16_to_cpu(data->pattern_number); 2363 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2364 status->qos_seq_ctr[i] = 2365 le16_to_cpu(data->qos_seq_ctr[i]); 2366 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2367 status->num_of_gtk_rekeys = 2368 le32_to_cpu(data->num_of_gtk_rekeys); 2369 status->received_beacons = le32_to_cpu(data->received_beacons); 2370 status->tid_tear_down = data->tid_tear_down; 2371} 2372 2373/* Occasionally, templates would be nice. This is one of those times ... */ 2374#define iwl_mvm_parse_wowlan_status_common(_ver) \ 2375static struct iwl_wowlan_status_data * \ 2376iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \ 2377 struct iwl_wowlan_status_ ##_ver *data,\ 2378 int len) \ 2379{ \ 2380 struct iwl_wowlan_status_data *status; \ 2381 int data_size, i; \ 2382 \ 2383 if (len < sizeof(*data)) { \ 2384 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2385 return NULL; \ 2386 } \ 2387 \ 2388 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \ 2389 if (len != sizeof(*data) + data_size) { \ 2390 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2391 return NULL; \ 2392 } \ 2393 \ 2394 status = kzalloc(sizeof(*status), GFP_KERNEL); \ 2395 if (!status) \ 2396 return NULL; \ 2397 \ 2398 /* copy all the common fields */ \ 2399 status->replay_ctr = le64_to_cpu(data->replay_ctr); \ 2400 status->pattern_number = le16_to_cpu(data->pattern_number); \ 2401 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \ 2402 for (i = 0; i < 8; i++) \ 2403 status->qos_seq_ctr[i] = \ 2404 le16_to_cpu(data->qos_seq_ctr[i]); \ 2405 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \ 2406 status->num_of_gtk_rekeys = \ 2407 le32_to_cpu(data->num_of_gtk_rekeys); \ 2408 status->received_beacons = le32_to_cpu(data->received_beacons); \ 2409 status->wake_packet_length = \ 2410 le32_to_cpu(data->wake_packet_length); \ 2411 status->wake_packet_bufsize = \ 2412 le32_to_cpu(data->wake_packet_bufsize); \ 2413 if (status->wake_packet_bufsize) { \ 2414 status->wake_packet = \ 2415 kmemdup(data->wake_packet, \ 2416 status->wake_packet_bufsize, \ 2417 GFP_KERNEL); \ 2418 if (!status->wake_packet) { \ 2419 kfree(status); \ 2420 return NULL; \ 2421 } \ 2422 } else { \ 2423 status->wake_packet = NULL; \ 2424 } \ 2425 \ 2426 return status; \ 2427} 2428 2429iwl_mvm_parse_wowlan_status_common(v6) 2430iwl_mvm_parse_wowlan_status_common(v7) 2431iwl_mvm_parse_wowlan_status_common(v9) 2432iwl_mvm_parse_wowlan_status_common(v12) 2433 2434static struct iwl_wowlan_status_data * 2435iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id) 2436{ 2437 struct iwl_wowlan_status_data *status; 2438 struct iwl_wowlan_get_status_cmd get_status_cmd = { 2439 .sta_id = cpu_to_le32(sta_id), 2440 }; 2441 struct iwl_host_cmd cmd = { 2442 .id = WOWLAN_GET_STATUSES, 2443 .flags = CMD_WANT_SKB, 2444 .data = { &get_status_cmd, }, 2445 .len = { sizeof(get_status_cmd), }, 2446 }; 2447 int ret, len; 2448 u8 notif_ver; 2449 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 2450 IWL_FW_CMD_VER_UNKNOWN); 2451 2452 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN) 2453 cmd.len[0] = 0; 2454 2455 lockdep_assert_held(&mvm->mutex); 2456 2457 ret = iwl_mvm_send_cmd(mvm, &cmd); 2458 if (ret) { 2459 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret); 2460 return ERR_PTR(ret); 2461 } 2462 2463 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2464 2465 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2466 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm); 2467 2468 if (notif_ver < 7) { 2469 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data; 2470 2471 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len); 2472 if (!status) 2473 goto out_free_resp; 2474 2475 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) > 2476 sizeof(status->gtk[0].key)); 2477 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2478 sizeof(v6->gtk.tkip_mic_key) > 2479 sizeof(status->gtk[0].key)); 2480 2481 /* copy GTK info to the right place */ 2482 memcpy(status->gtk[0].key, v6->gtk.decrypt_key, 2483 sizeof(v6->gtk.decrypt_key)); 2484 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2485 v6->gtk.tkip_mic_key, 2486 sizeof(v6->gtk.tkip_mic_key)); 2487 2488 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc); 2489 2490 /* hardcode the key length to 16 since v6 only supports 16 */ 2491 status->gtk[0].len = 16; 2492 2493 /* 2494 * The key index only uses 2 bits (values 0 to 3) and 2495 * we always set bit 7 which means this is the 2496 * currently used key. 2497 */ 2498 status->gtk[0].flags = v6->gtk.key_index | BIT(7); 2499 } else if (notif_ver == 7) { 2500 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data; 2501 2502 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len); 2503 if (!status) 2504 goto out_free_resp; 2505 2506 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc); 2507 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]); 2508 iwl_mvm_convert_igtk(status, &v7->igtk[0]); 2509 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) { 2510 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data; 2511 2512 /* these three command versions have same layout and size, the 2513 * difference is only in a few not used (reserved) fields. 2514 */ 2515 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len); 2516 if (!status) 2517 goto out_free_resp; 2518 2519 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc); 2520 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]); 2521 iwl_mvm_convert_igtk(status, &v9->igtk[0]); 2522 2523 status->tid_tear_down = v9->tid_tear_down; 2524 } else if (notif_ver == 12) { 2525 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data; 2526 2527 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len); 2528 if (!status) 2529 goto out_free_resp; 2530 2531 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc); 2532 iwl_mvm_convert_gtk_v3(status, v12->gtk); 2533 iwl_mvm_convert_igtk(status, &v12->igtk[0]); 2534 2535 status->tid_tear_down = v12->tid_tear_down; 2536 } else { 2537 IWL_ERR(mvm, 2538 "Firmware advertises unknown WoWLAN status response %d!\n", 2539 notif_ver); 2540 status = NULL; 2541 } 2542 2543out_free_resp: 2544 iwl_free_resp(&cmd); 2545 return status; 2546} 2547 2548/* releases the MVM mutex */ 2549static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, 2550 struct ieee80211_vif *vif, 2551 struct iwl_wowlan_status_data *status) 2552{ 2553 int i; 2554 bool keep = false; 2555 struct iwl_mvm_sta *mvm_ap_sta; 2556 2557 if (!status) 2558 goto out_unlock; 2559 2560 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n", 2561 status->wakeup_reasons); 2562 2563 /* still at hard-coded place 0 for D3 image */ 2564 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0); 2565 if (!mvm_ap_sta) 2566 goto out_unlock; 2567 2568 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 2569 u16 seq = status->qos_seq_ctr[i]; 2570 /* firmware stores last-used value, we store next value */ 2571 seq += 0x10; 2572 mvm_ap_sta->tid_data[i].seq_number = seq; 2573 } 2574 2575 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 2576 i = mvm->offload_tid; 2577 iwl_trans_set_q_ptrs(mvm->trans, 2578 mvm_ap_sta->tid_data[i].txq_id, 2579 mvm_ap_sta->tid_data[i].seq_number >> 4); 2580 } 2581 2582 iwl_mvm_report_wakeup_reasons(mvm, vif, status); 2583 2584 keep = iwl_mvm_setup_connection_keep(mvm, vif, status); 2585out_unlock: 2586 mutex_unlock(&mvm->mutex); 2587 return keep; 2588} 2589 2590#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \ 2591 IWL_SCAN_MAX_PROFILES) 2592 2593struct iwl_mvm_nd_results { 2594 u32 matched_profiles; 2595 u8 matches[ND_QUERY_BUF_LEN]; 2596}; 2597 2598static int 2599iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, 2600 struct iwl_mvm_nd_results *results) 2601{ 2602 struct iwl_scan_offload_match_info *query; 2603 struct iwl_host_cmd cmd = { 2604 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, 2605 .flags = CMD_WANT_SKB, 2606 }; 2607 int ret, len; 2608 size_t query_len, matches_len; 2609 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw); 2610 2611 ret = iwl_mvm_send_cmd(mvm, &cmd); 2612 if (ret) { 2613 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); 2614 return ret; 2615 } 2616 2617 if (fw_has_api(&mvm->fw->ucode_capa, 2618 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2619 query_len = sizeof(struct iwl_scan_offload_match_info); 2620 matches_len = sizeof(struct iwl_scan_offload_profile_match) * 2621 max_profiles; 2622 } else { 2623 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1); 2624 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) * 2625 max_profiles; 2626 } 2627 2628 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2629 if (len < query_len) { 2630 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); 2631 ret = -EIO; 2632 goto out_free_resp; 2633 } 2634 2635 query = (void *)cmd.resp_pkt->data; 2636 2637 results->matched_profiles = le32_to_cpu(query->matched_profiles); 2638 memcpy(results->matches, query->matches, matches_len); 2639 2640#ifdef CONFIG_IWLWIFI_DEBUGFS 2641 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); 2642#endif 2643 2644out_free_resp: 2645 iwl_free_resp(&cmd); 2646 return ret; 2647} 2648 2649static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm, 2650 struct iwl_mvm_nd_results *results, 2651 int idx) 2652{ 2653 int n_chans = 0, i; 2654 2655 if (fw_has_api(&mvm->fw->ucode_capa, 2656 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2657 struct iwl_scan_offload_profile_match *matches = 2658 (void *)results->matches; 2659 2660 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++) 2661 n_chans += hweight8(matches[idx].matching_channels[i]); 2662 } else { 2663 struct iwl_scan_offload_profile_match_v1 *matches = 2664 (void *)results->matches; 2665 2666 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++) 2667 n_chans += hweight8(matches[idx].matching_channels[i]); 2668 } 2669 2670 return n_chans; 2671} 2672 2673static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm, 2674 struct iwl_mvm_nd_results *results, 2675 struct cfg80211_wowlan_nd_match *match, 2676 int idx) 2677{ 2678 int i; 2679 2680 if (fw_has_api(&mvm->fw->ucode_capa, 2681 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2682 struct iwl_scan_offload_profile_match *matches = 2683 (void *)results->matches; 2684 2685 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++) 2686 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2687 match->channels[match->n_channels++] = 2688 mvm->nd_channels[i]->center_freq; 2689 } else { 2690 struct iwl_scan_offload_profile_match_v1 *matches = 2691 (void *)results->matches; 2692 2693 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++) 2694 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2695 match->channels[match->n_channels++] = 2696 mvm->nd_channels[i]->center_freq; 2697 } 2698} 2699 2700/** 2701 * enum iwl_d3_notif - d3 notifications 2702 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received 2703 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received 2704 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received 2705 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received 2706 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received 2707 */ 2708enum iwl_d3_notif { 2709 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0), 2710 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1), 2711 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2), 2712 IWL_D3_ND_MATCH_INFO = BIT(3), 2713 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4) 2714}; 2715 2716/* manage d3 resume data */ 2717struct iwl_d3_data { 2718 struct iwl_wowlan_status_data *status; 2719 bool test; 2720 u32 d3_end_flags; 2721 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */ 2722 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */ 2723 struct iwl_mvm_nd_results *nd_results; 2724 bool nd_results_valid; 2725}; 2726 2727static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, 2728 struct ieee80211_vif *vif, 2729 struct iwl_d3_data *d3_data) 2730{ 2731 struct cfg80211_wowlan_nd_info *net_detect = NULL; 2732 struct cfg80211_wowlan_wakeup wakeup = { 2733 .pattern_idx = -1, 2734 }; 2735 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 2736 unsigned long matched_profiles; 2737 u32 reasons = 0; 2738 int i, n_matches, ret; 2739 2740 if (WARN_ON(!d3_data || !d3_data->status)) 2741 goto out; 2742 2743 reasons = d3_data->status->wakeup_reasons; 2744 2745 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 2746 wakeup.rfkill_release = true; 2747 2748 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) 2749 goto out; 2750 2751 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2752 WOWLAN_INFO_NOTIFICATION, 0)) { 2753 IWL_INFO(mvm, "Query FW for ND results\n"); 2754 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results); 2755 2756 } else { 2757 IWL_INFO(mvm, "Notification based ND results\n"); 2758 ret = d3_data->nd_results_valid ? 0 : -1; 2759 } 2760 2761 if (ret || !d3_data->nd_results->matched_profiles) { 2762 wakeup_report = NULL; 2763 goto out; 2764 } 2765 2766 matched_profiles = d3_data->nd_results->matched_profiles; 2767 if (mvm->n_nd_match_sets) { 2768 n_matches = hweight_long(matched_profiles); 2769 } else { 2770 IWL_ERR(mvm, "no net detect match information available\n"); 2771 n_matches = 0; 2772 } 2773 2774 net_detect = kzalloc(struct_size(net_detect, matches, n_matches), 2775 GFP_KERNEL); 2776 if (!net_detect || !n_matches) 2777 goto out_report_nd; 2778 2779 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { 2780 struct cfg80211_wowlan_nd_match *match; 2781 int idx, n_channels = 0; 2782 2783 n_channels = iwl_mvm_query_num_match_chans(mvm, 2784 d3_data->nd_results, 2785 i); 2786 2787 match = kzalloc(struct_size(match, channels, n_channels), 2788 GFP_KERNEL); 2789 if (!match) 2790 goto out_report_nd; 2791 2792 net_detect->matches[net_detect->n_matches++] = match; 2793 2794 /* We inverted the order of the SSIDs in the scan 2795 * request, so invert the index here. 2796 */ 2797 idx = mvm->n_nd_match_sets - i - 1; 2798 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; 2799 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, 2800 match->ssid.ssid_len); 2801 2802 if (mvm->n_nd_channels < n_channels) 2803 continue; 2804 2805 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i); 2806 } 2807 2808out_report_nd: 2809 wakeup.net_detect = net_detect; 2810out: 2811 iwl_mvm_free_nd(mvm); 2812 2813 mutex_unlock(&mvm->mutex); 2814 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 2815 2816 if (net_detect) { 2817 for (i = 0; i < net_detect->n_matches; i++) 2818 kfree(net_detect->matches[i]); 2819 kfree(net_detect); 2820 } 2821} 2822 2823static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, 2824 struct ieee80211_vif *vif) 2825{ 2826 /* skip the one we keep connection on */ 2827 if (data == vif) 2828 return; 2829 2830 if (vif->type == NL80211_IFTYPE_STATION) 2831 ieee80211_resume_disconnect(vif); 2832} 2833 2834static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id) 2835{ 2836 struct error_table_start { 2837 /* cf. struct iwl_error_event_table */ 2838 u32 valid; 2839 __le32 err_id; 2840 } err_info; 2841 2842 if (!base) 2843 return false; 2844 2845 iwl_trans_read_mem_bytes(trans, base, 2846 &err_info, sizeof(err_info)); 2847 if (err_info.valid && err_id) 2848 *err_id = le32_to_cpu(err_info.err_id); 2849 2850 return !!err_info.valid; 2851} 2852 2853static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm, 2854 struct ieee80211_vif *vif) 2855{ 2856 u32 err_id; 2857 2858 /* check for lmac1 error */ 2859 if (iwl_mvm_rt_status(mvm->trans, 2860 mvm->trans->dbg.lmac_error_event_table[0], 2861 &err_id)) { 2862 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) { 2863 struct cfg80211_wowlan_wakeup wakeup = { 2864 .rfkill_release = true, 2865 }; 2866 ieee80211_report_wowlan_wakeup(vif, &wakeup, 2867 GFP_KERNEL); 2868 } 2869 return true; 2870 } 2871 2872 /* check if we have lmac2 set and check for error */ 2873 if (iwl_mvm_rt_status(mvm->trans, 2874 mvm->trans->dbg.lmac_error_event_table[1], NULL)) 2875 return true; 2876 2877 /* check for umac error */ 2878 if (iwl_mvm_rt_status(mvm->trans, 2879 mvm->trans->dbg.umac_error_event_table, NULL)) 2880 return true; 2881 2882 return false; 2883} 2884 2885/* 2886 * This function assumes: 2887 * 1. The mutex is already held. 2888 * 2. The callee functions unlock the mutex. 2889 */ 2890static bool 2891iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm, 2892 struct ieee80211_vif *vif, 2893 struct iwl_d3_data *d3_data) 2894{ 2895 lockdep_assert_held(&mvm->mutex); 2896 2897 /* if FW uses status notification, status shouldn't be NULL here */ 2898 if (!d3_data->status) { 2899 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2900 u8 sta_id = mvm->net_detect ? IWL_MVM_INVALID_STA : 2901 mvmvif->deflink.ap_sta_id; 2902 2903 /* bug - FW with MLO has status notification */ 2904 WARN_ON(ieee80211_vif_is_mld(vif)); 2905 2906 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id); 2907 } 2908 2909 if (mvm->net_detect) { 2910 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data); 2911 } else { 2912 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif, 2913 d3_data->status); 2914 2915#ifdef CONFIG_IWLWIFI_DEBUGFS 2916 if (keep) 2917 mvm->keep_vif = vif; 2918#endif 2919 2920 return keep; 2921 } 2922 return false; 2923} 2924 2925#define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \ 2926 IWL_WOWLAN_WAKEUP_BY_PATTERN | \ 2927 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\ 2928 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\ 2929 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\ 2930 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD) 2931 2932static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm, 2933 struct iwl_wowlan_wake_pkt_notif *notif, 2934 struct iwl_wowlan_status_data *status, 2935 u32 len) 2936{ 2937 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length); 2938 2939 if (len < sizeof(*notif)) { 2940 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n"); 2941 return -EIO; 2942 } 2943 2944 if (WARN_ON(!status)) { 2945 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n"); 2946 return -EIO; 2947 } 2948 2949 if (WARN_ON(!(status->wakeup_reasons & 2950 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) { 2951 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n", 2952 status->wakeup_reasons); 2953 return -EIO; 2954 } 2955 2956 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet); 2957 2958 /* data_size got the padding from the notification, remove it. */ 2959 if (packet_len < data_size) 2960 data_size = packet_len; 2961 2962 status->wake_packet = kmemdup(notif->wake_packet, data_size, 2963 GFP_ATOMIC); 2964 2965 if (!status->wake_packet) 2966 return -ENOMEM; 2967 2968 status->wake_packet_length = packet_len; 2969 status->wake_packet_bufsize = data_size; 2970 2971 return 0; 2972} 2973 2974static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm, 2975 struct iwl_d3_data *d3_data, 2976 struct iwl_scan_offload_match_info *notif, 2977 u32 len) 2978{ 2979 struct iwl_wowlan_status_data *status = d3_data->status; 2980 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); 2981 struct iwl_mvm_nd_results *results = d3_data->nd_results; 2982 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) * 2983 iwl_umac_scan_get_max_profiles(mvm->fw); 2984 2985 if (IS_ERR_OR_NULL(vif)) 2986 return; 2987 2988 if (len < sizeof(struct iwl_scan_offload_match_info)) { 2989 IWL_ERR(mvm, "Invalid scan match info notification\n"); 2990 return; 2991 } 2992 2993 if (!mvm->net_detect) { 2994 IWL_ERR(mvm, "Unexpected scan match info notification\n"); 2995 return; 2996 } 2997 2998 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 2999 IWL_ERR(mvm, 3000 "Ignore scan match info notification: no reason\n"); 3001 return; 3002 } 3003 3004#ifdef CONFIG_IWLWIFI_DEBUGFS 3005 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done); 3006#endif 3007 3008 results->matched_profiles = le32_to_cpu(notif->matched_profiles); 3009 IWL_INFO(mvm, "number of matched profiles=%u\n", 3010 results->matched_profiles); 3011 3012 if (results->matched_profiles) { 3013 memcpy(results->matches, notif->matches, matches_len); 3014 d3_data->nd_results_valid = true; 3015 } 3016 3017 /* no scan should be active at this point */ 3018 mvm->scan_status = 0; 3019 for (i = 0; i < mvm->max_scans; i++) 3020 mvm->scan_uid_status[i] = 0; 3021} 3022 3023static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait, 3024 struct iwl_rx_packet *pkt, void *data) 3025{ 3026 struct iwl_mvm *mvm = 3027 container_of(notif_wait, struct iwl_mvm, notif_wait); 3028 struct iwl_d3_data *d3_data = data; 3029 u32 len = iwl_rx_packet_payload_len(pkt); 3030 int ret; 3031 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 3032 PROT_OFFLOAD_GROUP, 3033 WOWLAN_INFO_NOTIFICATION, 3034 IWL_FW_CMD_VER_UNKNOWN); 3035 3036 3037 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) { 3038 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): { 3039 3040 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) { 3041 /* We might get two notifications due to dual bss */ 3042 IWL_DEBUG_WOWLAN(mvm, 3043 "Got additional wowlan info notification\n"); 3044 break; 3045 } 3046 3047 if (wowlan_info_ver < 2) { 3048 struct iwl_wowlan_info_notif_v1 *notif_v1 = 3049 (void *)pkt->data; 3050 struct iwl_wowlan_info_notif_v2 *notif_v2; 3051 3052 notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC); 3053 3054 if (!notif_v2) 3055 return false; 3056 3057 notif_v2->tid_tear_down = notif_v1->tid_tear_down; 3058 notif_v2->station_id = notif_v1->station_id; 3059 memset_after(notif_v2, 0, station_id); 3060 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, 3061 d3_data->status, 3062 len); 3063 kfree(notif_v2); 3064 3065 } else if (wowlan_info_ver == 2) { 3066 struct iwl_wowlan_info_notif_v2 *notif_v2 = 3067 (void *)pkt->data; 3068 3069 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, 3070 d3_data->status, 3071 len); 3072 } else { 3073 struct iwl_wowlan_info_notif *notif = 3074 (void *)pkt->data; 3075 3076 iwl_mvm_parse_wowlan_info_notif(mvm, notif, 3077 d3_data->status, len); 3078 } 3079 3080 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO; 3081 3082 if (d3_data->status && 3083 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT) 3084 /* We are supposed to get also wake packet notif */ 3085 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 3086 3087 break; 3088 } 3089 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): { 3090 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data; 3091 3092 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) { 3093 /* We shouldn't get two wake packet notifications */ 3094 IWL_ERR(mvm, 3095 "Got additional wowlan wake packet notification\n"); 3096 } else { 3097 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 3098 len = iwl_rx_packet_payload_len(pkt); 3099 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif, 3100 d3_data->status, 3101 len); 3102 if (ret) 3103 IWL_ERR(mvm, 3104 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n"); 3105 } 3106 3107 break; 3108 } 3109 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): { 3110 struct iwl_scan_offload_match_info *notif = (void *)pkt->data; 3111 3112 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) { 3113 IWL_ERR(mvm, 3114 "Got additional netdetect match info\n"); 3115 break; 3116 } 3117 3118 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO; 3119 3120 /* explicitly set this in the 'expected' as well */ 3121 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO; 3122 3123 len = iwl_rx_packet_payload_len(pkt); 3124 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len); 3125 break; 3126 } 3127 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): { 3128 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data; 3129 3130 d3_data->d3_end_flags = __le32_to_cpu(notif->flags); 3131 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF; 3132 3133 break; 3134 } 3135 default: 3136 WARN_ON(1); 3137 } 3138 3139 return d3_data->notif_received == d3_data->notif_expected; 3140} 3141 3142static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test) 3143{ 3144 int ret; 3145 enum iwl_d3_status d3_status; 3146 struct iwl_host_cmd cmd = { 3147 .id = D0I3_END_CMD, 3148 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3, 3149 }; 3150 bool reset = fw_has_capa(&mvm->fw->ucode_capa, 3151 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3152 3153 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset); 3154 if (ret) 3155 return ret; 3156 3157 if (d3_status != IWL_D3_STATUS_ALIVE) { 3158 IWL_INFO(mvm, "Device was reset during suspend\n"); 3159 return -ENOENT; 3160 } 3161 3162 /* 3163 * We should trigger resume flow using command only for 22000 family 3164 * AX210 and above don't need the command since they have 3165 * the doorbell interrupt. 3166 */ 3167 if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 && 3168 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) { 3169 ret = iwl_mvm_send_cmd(mvm, &cmd); 3170 if (ret < 0) 3171 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n", 3172 ret); 3173 } 3174 3175 return ret; 3176} 3177 3178#define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 5) 3179 3180static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm, 3181 struct iwl_d3_data *d3_data) 3182{ 3183 static const u16 d3_resume_notif[] = { 3184 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION), 3185 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION), 3186 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF), 3187 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3188 }; 3189 struct iwl_notification_wait wait_d3_notif; 3190 int ret; 3191 3192 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3193 d3_resume_notif, ARRAY_SIZE(d3_resume_notif), 3194 iwl_mvm_wait_d3_notif, d3_data); 3195 3196 ret = iwl_mvm_resume_firmware(mvm, d3_data->test); 3197 if (ret) { 3198 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif); 3199 return ret; 3200 } 3201 3202 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif, 3203 IWL_MVM_D3_NOTIF_TIMEOUT); 3204} 3205 3206static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm) 3207{ 3208 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3209 WOWLAN_INFO_NOTIFICATION, 0) && 3210 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3211 WOWLAN_WAKE_PKT_NOTIFICATION, 0) && 3212 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3213 D3_END_NOTIFICATION, 0); 3214} 3215 3216static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) 3217{ 3218 struct ieee80211_vif *vif = NULL; 3219 int ret = 1; 3220 struct iwl_mvm_nd_results results = {}; 3221 struct iwl_d3_data d3_data = { 3222 .test = test, 3223 .notif_expected = 3224 IWL_D3_NOTIF_WOWLAN_INFO | 3225 IWL_D3_NOTIF_D3_END_NOTIF, 3226 .nd_results_valid = false, 3227 .nd_results = &results, 3228 }; 3229 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3230 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3231 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa, 3232 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST); 3233 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm); 3234 bool keep = false; 3235 3236 mutex_lock(&mvm->mutex); 3237 3238 mvm->last_reset_or_resume_time_jiffies = jiffies; 3239 3240 /* get the BSS vif pointer again */ 3241 vif = iwl_mvm_get_bss_vif(mvm); 3242 if (IS_ERR_OR_NULL(vif)) 3243 goto err; 3244 3245 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3246 3247 if (iwl_mvm_check_rt_status(mvm, vif)) { 3248 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3249 iwl_mvm_dump_nic_error_log(mvm); 3250 iwl_dbg_tlv_time_point(&mvm->fwrt, 3251 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL); 3252 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert, 3253 false, 0); 3254 ret = 1; 3255 goto err; 3256 } 3257 3258 if (resume_notif_based) { 3259 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL); 3260 if (!d3_data.status) { 3261 IWL_ERR(mvm, "Failed to allocate wowlan status\n"); 3262 ret = -ENOMEM; 3263 goto err; 3264 } 3265 3266 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3267 if (ret) 3268 goto err; 3269 } else { 3270 ret = iwl_mvm_resume_firmware(mvm, test); 3271 if (ret < 0) 3272 goto err; 3273 } 3274 3275 /* after the successful handshake, we're out of D3 */ 3276 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; 3277 3278 /* when reset is required we can't send these following commands */ 3279 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE) 3280 goto query_wakeup_reasons; 3281 3282 /* 3283 * Query the current location and source from the D3 firmware so we 3284 * can play it back when we re-intiailize the D0 firmware 3285 */ 3286 iwl_mvm_update_changed_regdom(mvm); 3287 3288 /* Re-configure PPAG settings */ 3289 iwl_mvm_ppag_send_cmd(mvm); 3290 3291 if (!unified_image) 3292 /* Re-configure default SAR profile */ 3293 iwl_mvm_sar_select_profile(mvm, 1, 1); 3294 3295 if (mvm->net_detect && unified_image) { 3296 /* If this is a non-unified image, we restart the FW, 3297 * so no need to stop the netdetect scan. If that 3298 * fails, continue and try to get the wake-up reasons, 3299 * but trigger a HW restart by keeping a failure code 3300 * in ret. 3301 */ 3302 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT, 3303 false); 3304 } 3305 3306query_wakeup_reasons: 3307 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data); 3308 /* has unlocked the mutex, so skip that */ 3309 goto out; 3310 3311err: 3312 mutex_unlock(&mvm->mutex); 3313out: 3314 if (d3_data.status) 3315 kfree(d3_data.status->wake_packet); 3316 kfree(d3_data.status); 3317 iwl_mvm_free_nd(mvm); 3318 3319 if (!d3_data.test && !mvm->net_detect) 3320 ieee80211_iterate_active_interfaces_mtx(mvm->hw, 3321 IEEE80211_IFACE_ITER_NORMAL, 3322 iwl_mvm_d3_disconnect_iter, 3323 keep ? vif : NULL); 3324 3325 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3326 3327 /* no need to reset the device in unified images, if successful */ 3328 if (unified_image && !ret) { 3329 /* nothing else to do if we already sent D0I3_END_CMD */ 3330 if (d0i3_first) 3331 return 0; 3332 3333 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3334 D3_END_NOTIFICATION, 0)) { 3335 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL); 3336 if (!ret) 3337 return 0; 3338 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) { 3339 return 0; 3340 } 3341 } 3342 3343 /* 3344 * Reconfigure the device in one of the following cases: 3345 * 1. We are not using a unified image 3346 * 2. We are using a unified image but had an error while exiting D3 3347 */ 3348 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 3349 3350 /* regardless of what happened, we're now out of D3 */ 3351 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; 3352 3353 return 1; 3354} 3355 3356int iwl_mvm_resume(struct ieee80211_hw *hw) 3357{ 3358 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3359 int ret; 3360 3361 ret = __iwl_mvm_resume(mvm, false); 3362 3363 iwl_mvm_resume_tcm(mvm); 3364 3365 iwl_fw_runtime_resume(&mvm->fwrt); 3366 3367 return ret; 3368} 3369 3370void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) 3371{ 3372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3373 3374 device_set_wakeup_enable(mvm->trans->dev, enabled); 3375} 3376 3377#ifdef CONFIG_IWLWIFI_DEBUGFS 3378static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) 3379{ 3380 struct iwl_mvm *mvm = inode->i_private; 3381 int err; 3382 3383 if (mvm->d3_test_active) 3384 return -EBUSY; 3385 3386 file->private_data = inode->i_private; 3387 3388 iwl_mvm_pause_tcm(mvm, true); 3389 3390 iwl_fw_runtime_suspend(&mvm->fwrt); 3391 3392 /* start pseudo D3 */ 3393 rtnl_lock(); 3394 wiphy_lock(mvm->hw->wiphy); 3395 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); 3396 wiphy_unlock(mvm->hw->wiphy); 3397 rtnl_unlock(); 3398 if (err > 0) 3399 err = -EINVAL; 3400 if (err) 3401 return err; 3402 3403 mvm->d3_test_active = true; 3404 mvm->keep_vif = NULL; 3405 return 0; 3406} 3407 3408static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, 3409 size_t count, loff_t *ppos) 3410{ 3411 struct iwl_mvm *mvm = file->private_data; 3412 unsigned long end = jiffies + 60 * HZ; 3413 u32 pme_asserted; 3414 3415 while (true) { 3416 /* read pme_ptr if available */ 3417 if (mvm->d3_test_pme_ptr) { 3418 pme_asserted = iwl_trans_read_mem32(mvm->trans, 3419 mvm->d3_test_pme_ptr); 3420 if (pme_asserted) 3421 break; 3422 } 3423 3424 if (msleep_interruptible(100)) 3425 break; 3426 3427 if (time_is_before_jiffies(end)) { 3428 IWL_ERR(mvm, 3429 "ending pseudo-D3 with timeout after ~60 seconds\n"); 3430 return -ETIMEDOUT; 3431 } 3432 } 3433 3434 return 0; 3435} 3436 3437static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, 3438 struct ieee80211_vif *vif) 3439{ 3440 /* skip the one we keep connection on */ 3441 if (_data == vif) 3442 return; 3443 3444 if (vif->type == NL80211_IFTYPE_STATION) 3445 ieee80211_connection_loss(vif); 3446} 3447 3448static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) 3449{ 3450 struct iwl_mvm *mvm = inode->i_private; 3451 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3452 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3453 3454 mvm->d3_test_active = false; 3455 3456 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3457 3458 rtnl_lock(); 3459 wiphy_lock(mvm->hw->wiphy); 3460 __iwl_mvm_resume(mvm, true); 3461 wiphy_unlock(mvm->hw->wiphy); 3462 rtnl_unlock(); 3463 3464 iwl_mvm_resume_tcm(mvm); 3465 3466 iwl_fw_runtime_resume(&mvm->fwrt); 3467 3468 iwl_abort_notification_waits(&mvm->notif_wait); 3469 if (!unified_image) { 3470 int remaining_time = 10; 3471 3472 ieee80211_restart_hw(mvm->hw); 3473 3474 /* wait for restart and disconnect all interfaces */ 3475 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3476 remaining_time > 0) { 3477 remaining_time--; 3478 msleep(1000); 3479 } 3480 3481 if (remaining_time == 0) 3482 IWL_ERR(mvm, "Timed out waiting for HW restart!\n"); 3483 } 3484 3485 ieee80211_iterate_active_interfaces_atomic( 3486 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 3487 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); 3488 3489 return 0; 3490} 3491 3492const struct file_operations iwl_dbgfs_d3_test_ops = { 3493 .llseek = no_llseek, 3494 .open = iwl_mvm_d3_test_open, 3495 .read = iwl_mvm_d3_test_read, 3496 .release = iwl_mvm_d3_test_release, 3497}; 3498#endif 3499