1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/etherdevice.h> 8 #include <linux/ip.h> 9 #include <linux/fs.h> 10 #include <net/cfg80211.h> 11 #include <net/ipv6.h> 12 #include <net/tcp.h> 13 #include <net/addrconf.h> 14 #include "iwl-modparams.h" 15 #include "fw-api.h" 16 #include "mvm.h" 17 #include "fw/img.h" 18 19 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, 20 struct ieee80211_vif *vif, 21 struct cfg80211_gtk_rekey_data *data) 22 { 23 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 24 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 25 26 mutex_lock(&mvm->mutex); 27 28 mvmvif->rekey_data.kek_len = data->kek_len; 29 mvmvif->rekey_data.kck_len = data->kck_len; 30 memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len); 31 memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len); 32 mvmvif->rekey_data.akm = data->akm & 0xFF; 33 mvmvif->rekey_data.replay_ctr = 34 cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr)); 35 mvmvif->rekey_data.valid = true; 36 37 mutex_unlock(&mvm->mutex); 38 } 39 40 #if IS_ENABLED(CONFIG_IPV6) 41 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, 42 struct ieee80211_vif *vif, 43 struct inet6_dev *idev) 44 { 45 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 46 struct inet6_ifaddr *ifa; 47 int idx = 0; 48 49 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs)); 50 51 read_lock_bh(&idev->lock); 52 list_for_each_entry(ifa, &idev->addr_list, if_list) { 53 mvmvif->target_ipv6_addrs[idx] = ifa->addr; 54 if (ifa->flags & IFA_F_TENTATIVE) 55 __set_bit(idx, mvmvif->tentative_addrs); 56 idx++; 57 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) 58 break; 59 } 60 read_unlock_bh(&idev->lock); 61 62 mvmvif->num_target_ipv6_addrs = idx; 63 } 64 #endif 65 66 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, 67 struct ieee80211_vif *vif, int idx) 68 { 69 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 70 71 mvmvif->tx_key_idx = idx; 72 } 73 74 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) 75 { 76 int i; 77 78 for (i = 0; i < IWL_P1K_SIZE; i++) 79 out[i] = cpu_to_le16(p1k[i]); 80 } 81 82 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key, 83 struct iwl_mvm_key_pn *ptk_pn, 84 struct ieee80211_key_seq *seq, 85 int tid, int queues) 86 { 87 const u8 *ret = seq->ccmp.pn; 88 int i; 89 90 /* get the PN from mac80211, used on the default queue */ 91 ieee80211_get_key_rx_seq(key, tid, seq); 92 93 /* and use the internal data for the other queues */ 94 for (i = 1; i < queues; i++) { 95 const u8 *tmp = ptk_pn->q[i].pn[tid]; 96 97 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0) 98 ret = tmp; 99 } 100 101 return ret; 102 } 103 104 struct wowlan_key_reprogram_data { 105 bool error; 106 int wep_key_idx; 107 }; 108 109 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, 110 struct ieee80211_vif *vif, 111 struct ieee80211_sta *sta, 112 struct ieee80211_key_conf *key, 113 void *_data) 114 { 115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 117 struct wowlan_key_reprogram_data *data = _data; 118 int ret; 119 120 switch (key->cipher) { 121 case WLAN_CIPHER_SUITE_WEP40: 122 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ 123 DEFINE_RAW_FLEX(struct iwl_mvm_wep_key_cmd, wkc, wep_key, 1); 124 struct iwl_mvm_wep_key *wep_key = wkc->wep_key; 125 126 wkc->mac_id_n_color = 127 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 128 mvmvif->color)); 129 wkc->num_keys = 1; 130 /* firmware sets STA_KEY_FLG_WEP_13BYTES */ 131 wkc->decryption_type = STA_KEY_FLG_WEP; 132 wep_key->key_index = key->keyidx; 133 wep_key->key_size = key->keylen; 134 135 /* 136 * This will fail -- the key functions don't set support 137 * pairwise WEP keys. However, that's better than silently 138 * failing WoWLAN. Or maybe not? 139 */ 140 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 141 break; 142 143 memcpy(&wep_key->key[3], key->key, key->keylen); 144 if (key->keyidx == mvmvif->tx_key_idx) { 145 /* TX key must be at offset 0 */ 146 wep_key->key_offset = 0; 147 } else { 148 /* others start at 1 */ 149 data->wep_key_idx++; 150 wep_key->key_offset = data->wep_key_idx; 151 } 152 153 mutex_lock(&mvm->mutex); 154 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, 155 __struct_size(wkc), wkc); 156 data->error = ret != 0; 157 158 mvm->ptk_ivlen = key->iv_len; 159 mvm->ptk_icvlen = key->icv_len; 160 mvm->gtk_ivlen = key->iv_len; 161 mvm->gtk_icvlen = key->icv_len; 162 mutex_unlock(&mvm->mutex); 163 164 /* don't upload key again */ 165 return; 166 } 167 default: 168 data->error = true; 169 return; 170 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 171 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 172 return; 173 case WLAN_CIPHER_SUITE_AES_CMAC: 174 /* 175 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them 176 * but we also shouldn't abort suspend due to that. It does have 177 * support for the IGTK key renewal, but doesn't really use the 178 * IGTK for anything. This means we could spuriously wake up or 179 * be deauthenticated, but that was considered acceptable. 180 */ 181 return; 182 case WLAN_CIPHER_SUITE_TKIP: 183 case WLAN_CIPHER_SUITE_CCMP: 184 case WLAN_CIPHER_SUITE_GCMP: 185 case WLAN_CIPHER_SUITE_GCMP_256: 186 break; 187 } 188 189 mutex_lock(&mvm->mutex); 190 /* 191 * The D3 firmware hardcodes the key offset 0 as the key it 192 * uses to transmit packets to the AP, i.e. the PTK. 193 */ 194 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 195 mvm->ptk_ivlen = key->iv_len; 196 mvm->ptk_icvlen = key->icv_len; 197 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); 198 } else { 199 /* 200 * firmware only supports TSC/RSC for a single key, 201 * so if there are multiple keep overwriting them 202 * with new ones -- this relies on mac80211 doing 203 * list_add_tail(). 204 */ 205 mvm->gtk_ivlen = key->iv_len; 206 mvm->gtk_icvlen = key->icv_len; 207 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); 208 } 209 mutex_unlock(&mvm->mutex); 210 data->error = ret != 0; 211 } 212 213 struct wowlan_key_rsc_tsc_data { 214 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc; 215 bool have_rsc_tsc; 216 }; 217 218 static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw, 219 struct ieee80211_vif *vif, 220 struct ieee80211_sta *sta, 221 struct ieee80211_key_conf *key, 222 void *_data) 223 { 224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 225 struct wowlan_key_rsc_tsc_data *data = _data; 226 struct aes_sc *aes_sc; 227 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; 228 struct ieee80211_key_seq seq; 229 int i; 230 231 switch (key->cipher) { 232 default: 233 break; 234 case WLAN_CIPHER_SUITE_TKIP: 235 if (sta) { 236 u64 pn64; 237 238 tkip_sc = 239 data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc; 240 tkip_tx_sc = 241 &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc; 242 243 pn64 = atomic64_read(&key->tx_pn); 244 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); 245 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); 246 } else { 247 tkip_sc = 248 data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc; 249 } 250 251 /* 252 * For non-QoS this relies on the fact that both the uCode and 253 * mac80211 use TID 0 (as they need to to avoid replay attacks) 254 * for checking the IV in the frames. 255 */ 256 for (i = 0; i < IWL_NUM_RSC; i++) { 257 ieee80211_get_key_rx_seq(key, i, &seq); 258 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); 259 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); 260 } 261 262 data->have_rsc_tsc = true; 263 break; 264 case WLAN_CIPHER_SUITE_CCMP: 265 case WLAN_CIPHER_SUITE_GCMP: 266 case WLAN_CIPHER_SUITE_GCMP_256: 267 if (sta) { 268 struct aes_sc *aes_tx_sc; 269 u64 pn64; 270 271 aes_sc = 272 data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc; 273 aes_tx_sc = 274 &data->rsc_tsc->params.all_tsc_rsc.aes.tsc; 275 276 pn64 = atomic64_read(&key->tx_pn); 277 aes_tx_sc->pn = cpu_to_le64(pn64); 278 } else { 279 aes_sc = 280 data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc; 281 } 282 283 /* 284 * For non-QoS this relies on the fact that both the uCode and 285 * mac80211/our RX code use TID 0 for checking the PN. 286 */ 287 if (sta && iwl_mvm_has_new_rx_api(mvm)) { 288 struct iwl_mvm_sta *mvmsta; 289 struct iwl_mvm_key_pn *ptk_pn; 290 const u8 *pn; 291 292 mvmsta = iwl_mvm_sta_from_mac80211(sta); 293 rcu_read_lock(); 294 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 295 if (WARN_ON(!ptk_pn)) { 296 rcu_read_unlock(); 297 break; 298 } 299 300 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 301 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, 302 mvm->trans->info.num_rxqs); 303 aes_sc[i].pn = cpu_to_le64((u64)pn[5] | 304 ((u64)pn[4] << 8) | 305 ((u64)pn[3] << 16) | 306 ((u64)pn[2] << 24) | 307 ((u64)pn[1] << 32) | 308 ((u64)pn[0] << 40)); 309 } 310 311 rcu_read_unlock(); 312 } else { 313 for (i = 0; i < IWL_NUM_RSC; i++) { 314 u8 *pn = seq.ccmp.pn; 315 316 ieee80211_get_key_rx_seq(key, i, &seq); 317 aes_sc[i].pn = cpu_to_le64((u64)pn[5] | 318 ((u64)pn[4] << 8) | 319 ((u64)pn[3] << 16) | 320 ((u64)pn[2] << 24) | 321 ((u64)pn[1] << 32) | 322 ((u64)pn[0] << 40)); 323 } 324 } 325 data->have_rsc_tsc = true; 326 break; 327 } 328 } 329 330 struct wowlan_key_rsc_v5_data { 331 struct iwl_wowlan_rsc_tsc_params_cmd *rsc; 332 bool have_rsc; 333 int gtks; 334 int gtk_ids[4]; 335 }; 336 337 static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw, 338 struct ieee80211_vif *vif, 339 struct ieee80211_sta *sta, 340 struct ieee80211_key_conf *key, 341 void *_data) 342 { 343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 344 struct wowlan_key_rsc_v5_data *data = _data; 345 struct ieee80211_key_seq seq; 346 __le64 *rsc; 347 int i; 348 349 /* only for ciphers that can be PTK/GTK */ 350 switch (key->cipher) { 351 default: 352 return; 353 case WLAN_CIPHER_SUITE_TKIP: 354 case WLAN_CIPHER_SUITE_CCMP: 355 case WLAN_CIPHER_SUITE_GCMP: 356 case WLAN_CIPHER_SUITE_GCMP_256: 357 break; 358 } 359 360 if (sta) { 361 rsc = data->rsc->ucast_rsc; 362 } else { 363 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids))) 364 return; 365 data->gtk_ids[data->gtks] = key->keyidx; 366 rsc = data->rsc->mcast_rsc[data->gtks % 2]; 367 if (WARN_ON(key->keyidx >= 368 ARRAY_SIZE(data->rsc->mcast_key_id_map))) 369 return; 370 data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2; 371 if (data->gtks >= 2) { 372 int prev = data->gtks - 2; 373 int prev_idx = data->gtk_ids[prev]; 374 375 data->rsc->mcast_key_id_map[prev_idx] = 376 IWL_MCAST_KEY_MAP_INVALID; 377 } 378 data->gtks++; 379 } 380 381 switch (key->cipher) { 382 default: 383 WARN_ON(1); 384 break; 385 case WLAN_CIPHER_SUITE_TKIP: 386 387 /* 388 * For non-QoS this relies on the fact that both the uCode and 389 * mac80211 use TID 0 (as they need to to avoid replay attacks) 390 * for checking the IV in the frames. 391 */ 392 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 393 ieee80211_get_key_rx_seq(key, i, &seq); 394 395 rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) | 396 seq.tkip.iv16); 397 } 398 399 data->have_rsc = true; 400 break; 401 case WLAN_CIPHER_SUITE_CCMP: 402 case WLAN_CIPHER_SUITE_GCMP: 403 case WLAN_CIPHER_SUITE_GCMP_256: 404 /* 405 * For non-QoS this relies on the fact that both the uCode and 406 * mac80211/our RX code use TID 0 for checking the PN. 407 */ 408 if (sta) { 409 struct iwl_mvm_sta *mvmsta; 410 struct iwl_mvm_key_pn *ptk_pn; 411 const u8 *pn; 412 413 mvmsta = iwl_mvm_sta_from_mac80211(sta); 414 rcu_read_lock(); 415 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 416 if (WARN_ON(!ptk_pn)) { 417 rcu_read_unlock(); 418 break; 419 } 420 421 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 422 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, 423 mvm->trans->info.num_rxqs); 424 rsc[i] = cpu_to_le64((u64)pn[5] | 425 ((u64)pn[4] << 8) | 426 ((u64)pn[3] << 16) | 427 ((u64)pn[2] << 24) | 428 ((u64)pn[1] << 32) | 429 ((u64)pn[0] << 40)); 430 } 431 432 rcu_read_unlock(); 433 } else { 434 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 435 u8 *pn = seq.ccmp.pn; 436 437 ieee80211_get_key_rx_seq(key, i, &seq); 438 rsc[i] = cpu_to_le64((u64)pn[5] | 439 ((u64)pn[4] << 8) | 440 ((u64)pn[3] << 16) | 441 ((u64)pn[2] << 24) | 442 ((u64)pn[1] << 32) | 443 ((u64)pn[0] << 40)); 444 } 445 } 446 data->have_rsc = true; 447 break; 448 } 449 } 450 451 static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm, 452 struct ieee80211_vif *vif, 453 struct iwl_mvm_vif_link_info *mvm_link) 454 { 455 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM, 456 IWL_FW_CMD_VER_UNKNOWN); 457 int ret; 458 459 if (ver == 5) { 460 struct wowlan_key_rsc_v5_data data = {}; 461 int i; 462 463 data.rsc = kzalloc(sizeof(*data.rsc), GFP_KERNEL); 464 if (!data.rsc) 465 return -ENOMEM; 466 467 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++) 468 data.rsc->mcast_key_id_map[i] = 469 IWL_MCAST_KEY_MAP_INVALID; 470 data.rsc->sta_id = cpu_to_le32(mvm_link->ap_sta_id); 471 472 ieee80211_iter_keys(mvm->hw, vif, 473 iwl_mvm_wowlan_get_rsc_v5_data, 474 &data); 475 476 if (data.have_rsc) 477 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM, 478 CMD_ASYNC, sizeof(*data.rsc), 479 data.rsc); 480 else 481 ret = 0; 482 kfree(data.rsc); 483 } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) { 484 struct wowlan_key_rsc_tsc_data data = {}; 485 int size; 486 487 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL); 488 if (!data.rsc_tsc) 489 return -ENOMEM; 490 491 if (ver == 4) { 492 size = sizeof(*data.rsc_tsc); 493 data.rsc_tsc->sta_id = 494 cpu_to_le32(mvm_link->ap_sta_id); 495 } else { 496 /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */ 497 size = sizeof(data.rsc_tsc->params); 498 } 499 500 ieee80211_iter_keys(mvm->hw, vif, 501 iwl_mvm_wowlan_get_rsc_tsc_data, 502 &data); 503 504 if (data.have_rsc_tsc) 505 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM, 506 CMD_ASYNC, size, 507 data.rsc_tsc); 508 else 509 ret = 0; 510 kfree(data.rsc_tsc); 511 } else { 512 ret = 0; 513 WARN_ON_ONCE(1); 514 } 515 516 return ret; 517 } 518 519 struct wowlan_key_tkip_data { 520 struct iwl_wowlan_tkip_params_cmd tkip; 521 bool have_tkip_keys; 522 }; 523 524 static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw, 525 struct ieee80211_vif *vif, 526 struct ieee80211_sta *sta, 527 struct ieee80211_key_conf *key, 528 void *_data) 529 { 530 struct wowlan_key_tkip_data *data = _data; 531 struct iwl_p1k_cache *rx_p1ks; 532 u8 *rx_mic_key; 533 struct ieee80211_key_seq seq; 534 u32 cur_rx_iv32 = 0; 535 u16 p1k[IWL_P1K_SIZE]; 536 int i; 537 538 switch (key->cipher) { 539 default: 540 break; 541 case WLAN_CIPHER_SUITE_TKIP: 542 if (sta) { 543 u64 pn64; 544 545 rx_p1ks = data->tkip.rx_uni; 546 547 pn64 = atomic64_read(&key->tx_pn); 548 549 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64), 550 p1k); 551 iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k); 552 553 memcpy(data->tkip.mic_keys.tx, 554 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 555 IWL_MIC_KEY_SIZE); 556 557 rx_mic_key = data->tkip.mic_keys.rx_unicast; 558 } else { 559 rx_p1ks = data->tkip.rx_multi; 560 rx_mic_key = data->tkip.mic_keys.rx_mcast; 561 } 562 563 for (i = 0; i < IWL_NUM_RSC; i++) { 564 ieee80211_get_key_rx_seq(key, i, &seq); 565 /* wrapping isn't allowed, AP must rekey */ 566 if (seq.tkip.iv32 > cur_rx_iv32) 567 cur_rx_iv32 = seq.tkip.iv32; 568 } 569 570 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, 571 cur_rx_iv32, p1k); 572 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); 573 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, 574 cur_rx_iv32 + 1, p1k); 575 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); 576 577 memcpy(rx_mic_key, 578 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 579 IWL_MIC_KEY_SIZE); 580 581 data->have_tkip_keys = true; 582 break; 583 } 584 } 585 586 struct wowlan_key_gtk_type_iter { 587 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd; 588 }; 589 590 static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw, 591 struct ieee80211_vif *vif, 592 struct ieee80211_sta *sta, 593 struct ieee80211_key_conf *key, 594 void *_data) 595 { 596 struct wowlan_key_gtk_type_iter *data = _data; 597 __le32 *cipher = NULL; 598 599 if (key->keyidx == 4 || key->keyidx == 5) 600 cipher = &data->kek_kck_cmd->igtk_cipher; 601 if (key->keyidx == 6 || key->keyidx == 7) 602 cipher = &data->kek_kck_cmd->bigtk_cipher; 603 604 switch (key->cipher) { 605 default: 606 return; 607 case WLAN_CIPHER_SUITE_TKIP: 608 if (!sta) 609 data->kek_kck_cmd->gtk_cipher = 610 cpu_to_le32(STA_KEY_FLG_TKIP); 611 return; 612 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 613 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 614 if (cipher) 615 *cipher = cpu_to_le32(STA_KEY_FLG_GCMP); 616 return; 617 case WLAN_CIPHER_SUITE_AES_CMAC: 618 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 619 if (cipher) 620 *cipher = cpu_to_le32(STA_KEY_FLG_CCM); 621 return; 622 case WLAN_CIPHER_SUITE_CCMP: 623 if (!sta) 624 data->kek_kck_cmd->gtk_cipher = 625 cpu_to_le32(STA_KEY_FLG_CCM); 626 return; 627 case WLAN_CIPHER_SUITE_GCMP: 628 case WLAN_CIPHER_SUITE_GCMP_256: 629 if (!sta) 630 data->kek_kck_cmd->gtk_cipher = 631 cpu_to_le32(STA_KEY_FLG_GCMP); 632 return; 633 } 634 } 635 636 static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm, 637 struct cfg80211_wowlan *wowlan) 638 { 639 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd; 640 struct iwl_host_cmd cmd = { 641 .id = WOWLAN_PATTERNS, 642 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 643 }; 644 int i, err; 645 646 if (!wowlan->n_patterns) 647 return 0; 648 649 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns); 650 651 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); 652 if (!pattern_cmd) 653 return -ENOMEM; 654 655 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); 656 657 for (i = 0; i < wowlan->n_patterns; i++) { 658 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 659 660 memcpy(&pattern_cmd->patterns[i].mask, 661 wowlan->patterns[i].mask, mask_len); 662 memcpy(&pattern_cmd->patterns[i].pattern, 663 wowlan->patterns[i].pattern, 664 wowlan->patterns[i].pattern_len); 665 pattern_cmd->patterns[i].mask_size = mask_len; 666 pattern_cmd->patterns[i].pattern_size = 667 wowlan->patterns[i].pattern_len; 668 } 669 670 cmd.data[0] = pattern_cmd; 671 err = iwl_mvm_send_cmd(mvm, &cmd); 672 kfree(pattern_cmd); 673 return err; 674 } 675 676 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, 677 struct iwl_mvm_vif_link_info *mvm_link, 678 struct cfg80211_wowlan *wowlan) 679 { 680 struct iwl_wowlan_patterns_cmd *pattern_cmd; 681 struct iwl_host_cmd cmd = { 682 .id = WOWLAN_PATTERNS, 683 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 684 }; 685 int i, err; 686 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 687 IWL_FW_CMD_VER_UNKNOWN); 688 689 if (!wowlan->n_patterns) 690 return 0; 691 692 cmd.len[0] = sizeof(*pattern_cmd) + 693 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2); 694 695 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL); 696 if (!pattern_cmd) 697 return -ENOMEM; 698 699 pattern_cmd->n_patterns = wowlan->n_patterns; 700 if (ver >= 3) 701 pattern_cmd->sta_id = mvm_link->ap_sta_id; 702 703 for (i = 0; i < wowlan->n_patterns; i++) { 704 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 705 706 pattern_cmd->patterns[i].pattern_type = 707 WOWLAN_PATTERN_TYPE_BITMASK; 708 709 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask, 710 wowlan->patterns[i].mask, mask_len); 711 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern, 712 wowlan->patterns[i].pattern, 713 wowlan->patterns[i].pattern_len); 714 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len; 715 pattern_cmd->patterns[i].u.bitmask.pattern_size = 716 wowlan->patterns[i].pattern_len; 717 } 718 719 cmd.data[0] = pattern_cmd; 720 err = iwl_mvm_send_cmd(mvm, &cmd); 721 kfree(pattern_cmd); 722 return err; 723 } 724 725 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 726 struct ieee80211_sta *ap_sta) 727 { 728 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 729 struct ieee80211_chanctx_conf *ctx; 730 u8 chains_static, chains_dynamic; 731 struct cfg80211_chan_def chandef, ap_def; 732 int ret, i; 733 struct iwl_binding_cmd_v1 binding_cmd = {}; 734 struct iwl_time_quota_cmd quota_cmd = {}; 735 struct iwl_time_quota_data *quota; 736 u32 status; 737 738 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm) || 739 ieee80211_vif_is_mld(vif))) 740 return -EINVAL; 741 742 /* add back the PHY */ 743 if (WARN_ON(!mvmvif->deflink.phy_ctxt)) 744 return -EINVAL; 745 746 rcu_read_lock(); 747 ctx = rcu_dereference(vif->bss_conf.chanctx_conf); 748 if (WARN_ON(!ctx)) { 749 rcu_read_unlock(); 750 return -EINVAL; 751 } 752 chandef = ctx->def; 753 ap_def = ctx->ap; 754 chains_static = ctx->rx_chains_static; 755 chains_dynamic = ctx->rx_chains_dynamic; 756 rcu_read_unlock(); 757 758 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef, 759 &ap_def, chains_static, chains_dynamic); 760 if (ret) 761 return ret; 762 763 /* add back the MAC */ 764 mvmvif->uploaded = false; 765 766 if (WARN_ON(!vif->cfg.assoc)) 767 return -EINVAL; 768 769 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 770 if (ret) 771 return ret; 772 773 /* add back binding - XXX refactor? */ 774 binding_cmd.id_and_color = 775 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 776 mvmvif->deflink.phy_ctxt->color)); 777 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); 778 binding_cmd.phy = 779 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 780 mvmvif->deflink.phy_ctxt->color)); 781 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 782 mvmvif->color)); 783 for (i = 1; i < MAX_MACS_IN_BINDING; i++) 784 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); 785 786 status = 0; 787 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, 788 IWL_BINDING_CMD_SIZE_V1, &binding_cmd, 789 &status); 790 if (ret) { 791 IWL_ERR(mvm, "Failed to add binding: %d\n", ret); 792 return ret; 793 } 794 795 if (status) { 796 IWL_ERR(mvm, "Binding command failed: %u\n", status); 797 return -EIO; 798 } 799 800 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0); 801 if (ret) 802 return ret; 803 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id], 804 ap_sta); 805 806 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 807 if (ret) 808 return ret; 809 810 /* and some quota */ 811 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0); 812 quota->id_and_color = 813 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 814 mvmvif->deflink.phy_ctxt->color)); 815 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); 816 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); 817 818 for (i = 1; i < MAX_BINDINGS; i++) { 819 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i); 820 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID); 821 } 822 823 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, 824 iwl_mvm_quota_cmd_size(mvm), "a_cmd); 825 if (ret) 826 IWL_ERR(mvm, "Failed to send quota: %d\n", ret); 827 828 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false)) 829 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); 830 831 return 0; 832 } 833 834 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, 835 struct ieee80211_vif *vif) 836 { 837 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 838 struct iwl_nonqos_seq_query_cmd query_cmd = { 839 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), 840 .mac_id_n_color = 841 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 842 mvmvif->color)), 843 }; 844 struct iwl_host_cmd cmd = { 845 .id = NON_QOS_TX_COUNTER_CMD, 846 .flags = CMD_WANT_SKB, 847 }; 848 int err; 849 u32 size; 850 851 cmd.data[0] = &query_cmd; 852 cmd.len[0] = sizeof(query_cmd); 853 854 err = iwl_mvm_send_cmd(mvm, &cmd); 855 if (err) 856 return err; 857 858 size = iwl_rx_packet_payload_len(cmd.resp_pkt); 859 if (size < sizeof(__le16)) { 860 err = -EINVAL; 861 } else { 862 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); 863 /* firmware returns next, not last-used seqno */ 864 err = (u16) (err - 0x10); 865 } 866 867 iwl_free_resp(&cmd); 868 return err; 869 } 870 871 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 872 { 873 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 874 struct iwl_nonqos_seq_query_cmd query_cmd = { 875 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), 876 .mac_id_n_color = 877 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 878 mvmvif->color)), 879 .value = cpu_to_le16(mvmvif->seqno), 880 }; 881 882 /* return if called during restart, not resume from D3 */ 883 if (!mvmvif->seqno_valid) 884 return; 885 886 mvmvif->seqno_valid = false; 887 888 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, 889 sizeof(query_cmd), &query_cmd)) 890 IWL_ERR(mvm, "failed to set non-QoS seqno\n"); 891 } 892 893 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) 894 { 895 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 896 897 iwl_mvm_stop_device(mvm); 898 /* 899 * Set the HW restart bit -- this is mostly true as we're 900 * going to load new firmware and reprogram that, though 901 * the reprogramming is going to be manual to avoid adding 902 * all the MACs that aren't support. 903 * We don't have to clear up everything though because the 904 * reprogramming is manual. When we resume, we'll actually 905 * go through a proper restart sequence again to switch 906 * back to the runtime firmware image. 907 */ 908 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 909 910 /* the fw is reset, so all the keys are cleared */ 911 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 912 913 mvm->ptk_ivlen = 0; 914 mvm->ptk_icvlen = 0; 915 mvm->ptk_ivlen = 0; 916 mvm->ptk_icvlen = 0; 917 918 return iwl_mvm_load_d3_fw(mvm); 919 } 920 921 static int 922 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, 923 struct cfg80211_wowlan *wowlan, 924 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd, 925 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 926 struct ieee80211_sta *ap_sta) 927 { 928 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); 929 930 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ 931 932 wowlan_config_cmd->is_11n_connection = 933 ap_sta->deflink.ht_cap.ht_supported; 934 wowlan_config_cmd->flags = ENABLE_L3_FILTERING | 935 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; 936 937 if (ap_sta->mfp) 938 wowlan_config_cmd->flags |= IS_11W_ASSOC; 939 940 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) { 941 /* Query the last used seqno and set it */ 942 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); 943 944 if (ret < 0) 945 return ret; 946 947 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); 948 } 949 950 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 7) 951 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); 952 953 if (wowlan->disconnect) 954 wowlan_config_cmd->wakeup_filter |= 955 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 956 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 957 if (wowlan->magic_pkt) 958 wowlan_config_cmd->wakeup_filter |= 959 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); 960 if (wowlan->gtk_rekey_failure) 961 wowlan_config_cmd->wakeup_filter |= 962 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); 963 if (wowlan->eap_identity_req) 964 wowlan_config_cmd->wakeup_filter |= 965 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); 966 if (wowlan->four_way_handshake) 967 wowlan_config_cmd->wakeup_filter |= 968 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); 969 if (wowlan->n_patterns) 970 wowlan_config_cmd->wakeup_filter |= 971 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); 972 973 if (wowlan->rfkill_release) 974 wowlan_config_cmd->wakeup_filter |= 975 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); 976 977 if (wowlan->tcp) { 978 /* 979 * Set the "link change" (really "link lost") flag as well 980 * since that implies losing the TCP connection. 981 */ 982 wowlan_config_cmd->wakeup_filter |= 983 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | 984 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | 985 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | 986 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 987 } 988 989 if (wowlan->any) { 990 wowlan_config_cmd->wakeup_filter |= 991 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 992 IWL_WOWLAN_WAKEUP_LINK_CHANGE | 993 IWL_WOWLAN_WAKEUP_RX_FRAME | 994 IWL_WOWLAN_WAKEUP_BCN_FILTERING); 995 } 996 997 return 0; 998 } 999 1000 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, 1001 struct ieee80211_vif *vif, 1002 struct iwl_mvm_vif_link_info *mvm_link) 1003 { 1004 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 1005 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1006 struct wowlan_key_reprogram_data key_data = {}; 1007 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1008 int ret; 1009 u8 cmd_ver; 1010 size_t cmd_size; 1011 1012 if (!unified) { 1013 /* 1014 * if we have to configure keys, call ieee80211_iter_keys(), 1015 * as we need non-atomic context in order to take the 1016 * required locks. 1017 */ 1018 /* 1019 * Note that currently we don't use CMD_ASYNC in the iterator. 1020 * In case of key_data.configure_keys, all the configured 1021 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will 1022 * take care of locking/unlocking mvm->mutex. 1023 */ 1024 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys, 1025 &key_data); 1026 1027 if (key_data.error) 1028 return -EIO; 1029 } 1030 1031 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link); 1032 if (ret) 1033 return ret; 1034 1035 if (!fw_has_api(&mvm->fw->ucode_capa, 1036 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) { 1037 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM, 1038 IWL_FW_CMD_VER_UNKNOWN); 1039 struct wowlan_key_tkip_data tkip_data = {}; 1040 int size; 1041 1042 if (ver == 2) { 1043 size = sizeof(tkip_data.tkip); 1044 tkip_data.tkip.sta_id = 1045 cpu_to_le32(mvm_link->ap_sta_id); 1046 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) { 1047 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1); 1048 } else { 1049 WARN_ON_ONCE(1); 1050 return -EINVAL; 1051 } 1052 1053 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data, 1054 &tkip_data); 1055 1056 if (tkip_data.have_tkip_keys) { 1057 /* send relevant data according to CMD version */ 1058 ret = iwl_mvm_send_cmd_pdu(mvm, 1059 WOWLAN_TKIP_PARAM, 1060 CMD_ASYNC, size, 1061 &tkip_data.tkip); 1062 if (ret) 1063 return ret; 1064 } 1065 } 1066 1067 /* configure rekey data only if offloaded rekey is supported (d3) */ 1068 if (mvmvif->rekey_data.valid) { 1069 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {}; 1070 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd = 1071 &kek_kck_cmd; 1072 struct wowlan_key_gtk_type_iter gtk_type_data = { 1073 .kek_kck_cmd = _kek_kck_cmd, 1074 }; 1075 1076 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1077 WOWLAN_KEK_KCK_MATERIAL, 1078 IWL_FW_CMD_VER_UNKNOWN); 1079 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 && 1080 cmd_ver != IWL_FW_CMD_VER_UNKNOWN)) 1081 return -EINVAL; 1082 1083 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter, 1084 >k_type_data); 1085 1086 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, 1087 mvmvif->rekey_data.kck_len); 1088 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len); 1089 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, 1090 mvmvif->rekey_data.kek_len); 1091 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len); 1092 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; 1093 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm); 1094 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id); 1095 1096 if (cmd_ver == 4) { 1097 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4); 1098 } else { 1099 if (cmd_ver == 3) 1100 cmd_size = 1101 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3); 1102 else 1103 cmd_size = 1104 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2); 1105 /* skip the sta_id at the beginning */ 1106 _kek_kck_cmd = (void *) 1107 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id)); 1108 } 1109 1110 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n", 1111 mvmvif->rekey_data.akm); 1112 1113 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL, 1114 CMD_ASYNC, cmd_size, _kek_kck_cmd); 1115 if (ret) 1116 return ret; 1117 } 1118 1119 return 0; 1120 } 1121 1122 static int 1123 iwl_mvm_wowlan_config(struct iwl_mvm *mvm, 1124 struct cfg80211_wowlan *wowlan, 1125 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd_v6, 1126 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 1127 struct iwl_mvm_vif_link_info *mvm_link, 1128 struct ieee80211_sta *ap_sta) 1129 { 1130 int ret; 1131 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1132 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1133 1134 mvm->offload_tid = wowlan_config_cmd_v6->offloading_tid; 1135 1136 if (!unified_image) { 1137 ret = iwl_mvm_switch_to_d3(mvm); 1138 if (ret) 1139 return ret; 1140 1141 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); 1142 if (ret) 1143 return ret; 1144 } 1145 1146 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link); 1147 if (ret) 1148 return ret; 1149 1150 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) > 6) { 1151 struct iwl_wowlan_config_cmd wowlan_config_cmd = { 1152 .wakeup_filter = wowlan_config_cmd_v6->wakeup_filter, 1153 .wowlan_ba_teardown_tids = 1154 wowlan_config_cmd_v6->wowlan_ba_teardown_tids, 1155 .is_11n_connection = 1156 wowlan_config_cmd_v6->is_11n_connection, 1157 .offloading_tid = wowlan_config_cmd_v6->offloading_tid, 1158 .flags = wowlan_config_cmd_v6->flags, 1159 .sta_id = wowlan_config_cmd_v6->sta_id, 1160 }; 1161 1162 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1163 sizeof(wowlan_config_cmd), 1164 &wowlan_config_cmd); 1165 } else { 1166 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1167 sizeof(*wowlan_config_cmd_v6), 1168 wowlan_config_cmd_v6); 1169 } 1170 if (ret) 1171 return ret; 1172 1173 if (fw_has_api(&mvm->fw->ucode_capa, 1174 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE)) 1175 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan); 1176 else 1177 ret = iwl_mvm_send_patterns_v1(mvm, wowlan); 1178 if (ret) 1179 return ret; 1180 1181 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0, 1182 mvm_link->ap_sta_id); 1183 } 1184 1185 static int 1186 iwl_mvm_netdetect_config(struct iwl_mvm *mvm, 1187 struct cfg80211_wowlan *wowlan, 1188 struct cfg80211_sched_scan_request *nd_config, 1189 struct ieee80211_vif *vif) 1190 { 1191 int ret; 1192 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1193 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1194 1195 if (!unified_image) { 1196 ret = iwl_mvm_switch_to_d3(mvm); 1197 if (ret) 1198 return ret; 1199 } else { 1200 /* In theory, we wouldn't have to stop a running sched 1201 * scan in order to start another one (for 1202 * net-detect). But in practice this doesn't seem to 1203 * work properly, so stop any running sched_scan now. 1204 */ 1205 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 1206 if (ret) 1207 return ret; 1208 } 1209 1210 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, 1211 IWL_MVM_SCAN_NETDETECT); 1212 if (ret) 1213 return ret; 1214 1215 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) 1216 return -EBUSY; 1217 1218 /* save the sched scan matchsets... */ 1219 if (nd_config->n_match_sets) { 1220 mvm->nd_match_sets = kmemdup(nd_config->match_sets, 1221 sizeof(*nd_config->match_sets) * 1222 nd_config->n_match_sets, 1223 GFP_KERNEL); 1224 if (mvm->nd_match_sets) 1225 mvm->n_nd_match_sets = nd_config->n_match_sets; 1226 } 1227 1228 /* ...and the sched scan channels for later reporting */ 1229 mvm->nd_channels = kmemdup(nd_config->channels, 1230 sizeof(*nd_config->channels) * 1231 nd_config->n_channels, 1232 GFP_KERNEL); 1233 if (mvm->nd_channels) 1234 mvm->n_nd_channels = nd_config->n_channels; 1235 1236 return 0; 1237 } 1238 1239 static void iwl_mvm_free_nd(struct iwl_mvm *mvm) 1240 { 1241 kfree(mvm->nd_match_sets); 1242 mvm->nd_match_sets = NULL; 1243 mvm->n_nd_match_sets = 0; 1244 kfree(mvm->nd_channels); 1245 mvm->nd_channels = NULL; 1246 mvm->n_nd_channels = 0; 1247 } 1248 1249 static int __iwl_mvm_suspend(struct ieee80211_hw *hw, 1250 struct cfg80211_wowlan *wowlan, 1251 bool test) 1252 { 1253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1254 struct ieee80211_vif *vif = NULL; 1255 struct iwl_mvm_vif *mvmvif = NULL; 1256 struct ieee80211_sta *ap_sta = NULL; 1257 struct iwl_mvm_vif_link_info *mvm_link; 1258 struct iwl_d3_manager_config d3_cfg_cmd_data = { 1259 /* 1260 * Program the minimum sleep time to 10 seconds, as many 1261 * platforms have issues processing a wakeup signal while 1262 * still being in the process of suspending. 1263 */ 1264 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), 1265 }; 1266 struct iwl_host_cmd d3_cfg_cmd = { 1267 .id = D3_CONFIG_CMD, 1268 .flags = CMD_WANT_SKB, 1269 .data[0] = &d3_cfg_cmd_data, 1270 .len[0] = sizeof(d3_cfg_cmd_data), 1271 }; 1272 int ret; 1273 int len __maybe_unused; 1274 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1275 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1276 1277 if (!wowlan) { 1278 /* 1279 * mac80211 shouldn't get here, but for D3 test 1280 * it doesn't warrant a warning 1281 */ 1282 WARN_ON(!test); 1283 return -EINVAL; 1284 } 1285 1286 vif = iwl_mvm_get_bss_vif(mvm); 1287 if (IS_ERR_OR_NULL(vif)) 1288 return 1; 1289 1290 ret = iwl_mvm_block_esr_sync(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN); 1291 if (ret) 1292 return ret; 1293 1294 mutex_lock(&mvm->mutex); 1295 1296 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1297 1298 synchronize_net(); 1299 1300 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1301 1302 mvm_link = mvmvif->link[iwl_mvm_get_primary_link(vif)]; 1303 if (WARN_ON_ONCE(!mvm_link)) { 1304 ret = -EINVAL; 1305 goto out_noreset; 1306 } 1307 1308 if (mvm_link->ap_sta_id == IWL_INVALID_STA) { 1309 /* if we're not associated, this must be netdetect */ 1310 if (!wowlan->nd_config) { 1311 ret = 1; 1312 goto out_noreset; 1313 } 1314 1315 ret = iwl_mvm_netdetect_config( 1316 mvm, wowlan, wowlan->nd_config, vif); 1317 if (ret) 1318 goto out; 1319 1320 mvm->net_detect = true; 1321 } else { 1322 struct iwl_wowlan_config_cmd_v6 wowlan_config_cmd = { 1323 .offloading_tid = 0, 1324 }; 1325 1326 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id; 1327 1328 ap_sta = rcu_dereference_protected( 1329 mvm->fw_id_to_mac_id[mvm_link->ap_sta_id], 1330 lockdep_is_held(&mvm->mutex)); 1331 if (IS_ERR_OR_NULL(ap_sta)) { 1332 ret = -EINVAL; 1333 goto out_noreset; 1334 } 1335 1336 ret = iwl_mvm_sta_ensure_queue( 1337 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]); 1338 if (ret) 1339 goto out_noreset; 1340 1341 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1342 vif, mvmvif, ap_sta); 1343 if (ret) 1344 goto out_noreset; 1345 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1346 vif, mvmvif, mvm_link, ap_sta); 1347 if (ret) 1348 goto out; 1349 1350 mvm->net_detect = false; 1351 } 1352 1353 ret = iwl_mvm_power_update_device(mvm); 1354 if (ret) 1355 goto out; 1356 1357 ret = iwl_mvm_power_update_mac(mvm); 1358 if (ret) 1359 goto out; 1360 1361 #ifdef CONFIG_IWLWIFI_DEBUGFS 1362 if (mvm->d3_wake_sysassert) 1363 d3_cfg_cmd_data.wakeup_flags |= 1364 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); 1365 #endif 1366 1367 /* 1368 * Prior to 9000 device family the driver needs to stop the dbg 1369 * recording before entering D3. In later devices the FW stops the 1370 * recording automatically. 1371 */ 1372 if (mvm->trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_9000) 1373 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true); 1374 1375 /* must be last -- this switches firmware state */ 1376 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); 1377 if (ret) 1378 goto out; 1379 #ifdef CONFIG_IWLWIFI_DEBUGFS 1380 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); 1381 if (len >= sizeof(u32)) { 1382 mvm->d3_test_pme_ptr = 1383 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); 1384 } 1385 #endif 1386 iwl_free_resp(&d3_cfg_cmd); 1387 1388 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1389 1390 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image); 1391 out: 1392 if (ret < 0) { 1393 iwl_mvm_free_nd(mvm); 1394 1395 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1396 } 1397 out_noreset: 1398 mutex_unlock(&mvm->mutex); 1399 1400 return ret; 1401 } 1402 1403 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) 1404 { 1405 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1406 1407 iwl_mvm_pause_tcm(mvm, true); 1408 1409 mutex_lock(&mvm->mutex); 1410 iwl_fw_runtime_suspend(&mvm->fwrt); 1411 mutex_unlock(&mvm->mutex); 1412 1413 return __iwl_mvm_suspend(hw, wowlan, false); 1414 } 1415 1416 struct iwl_multicast_key_data { 1417 u8 key[WOWLAN_KEY_MAX_SIZE]; 1418 u8 len; 1419 u8 flags; 1420 u8 id; 1421 u8 ipn[6]; 1422 }; 1423 1424 /* converted data from the different status responses */ 1425 struct iwl_wowlan_status_data { 1426 u64 replay_ctr; 1427 u32 num_of_gtk_rekeys; 1428 u32 received_beacons; 1429 u32 wakeup_reasons; 1430 u32 wake_packet_length; 1431 u32 wake_packet_bufsize; 1432 u16 pattern_number; 1433 u16 non_qos_seq_ctr; 1434 u16 qos_seq_ctr[8]; 1435 u8 tid_tear_down; 1436 u8 tid_offloaded_tx; 1437 1438 struct { 1439 /* including RX MIC key for TKIP */ 1440 u8 key[WOWLAN_KEY_MAX_SIZE]; 1441 u8 len; 1442 u8 flags; 1443 u8 id; 1444 } gtk[WOWLAN_GTK_KEYS_NUM]; 1445 1446 struct { 1447 /* 1448 * We store both the TKIP and AES representations 1449 * coming from the firmware because we decode the 1450 * data from there before we iterate the keys and 1451 * know which one we need. 1452 */ 1453 struct { 1454 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1455 } tkip, aes; 1456 1457 /* 1458 * We use -1 for when we have valid data but don't know 1459 * the key ID from firmware, and thus it needs to be 1460 * installed with the last key (depending on rekeying). 1461 */ 1462 s8 key_id; 1463 bool valid; 1464 } gtk_seq[2]; 1465 1466 struct { 1467 /* Same as above */ 1468 struct { 1469 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1470 u64 tx_pn; 1471 } tkip, aes; 1472 } ptk; 1473 1474 struct iwl_multicast_key_data igtk; 1475 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM]; 1476 1477 u8 *wake_packet; 1478 }; 1479 1480 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, 1481 struct ieee80211_vif *vif, 1482 struct iwl_wowlan_status_data *status) 1483 { 1484 struct sk_buff *pkt = NULL; 1485 struct cfg80211_wowlan_wakeup wakeup = { 1486 .pattern_idx = -1, 1487 }; 1488 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 1489 u32 reasons = status->wakeup_reasons; 1490 1491 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 1492 wakeup_report = NULL; 1493 goto report; 1494 } 1495 1496 pm_wakeup_event(mvm->dev, 0); 1497 1498 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) 1499 wakeup.magic_pkt = true; 1500 1501 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) 1502 wakeup.pattern_idx = 1503 status->pattern_number; 1504 1505 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 1506 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH | 1507 IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)) 1508 wakeup.disconnect = true; 1509 1510 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) 1511 wakeup.gtk_rekey_failure = true; 1512 1513 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 1514 wakeup.rfkill_release = true; 1515 1516 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) 1517 wakeup.eap_identity_req = true; 1518 1519 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) 1520 wakeup.four_way_handshake = true; 1521 1522 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) 1523 wakeup.tcp_connlost = true; 1524 1525 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) 1526 wakeup.tcp_nomoretokens = true; 1527 1528 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) 1529 wakeup.tcp_match = true; 1530 1531 if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC) 1532 wakeup.unprot_deauth_disassoc = true; 1533 1534 if (status->wake_packet) { 1535 int pktsize = status->wake_packet_bufsize; 1536 int pktlen = status->wake_packet_length; 1537 const u8 *pktdata = status->wake_packet; 1538 const struct ieee80211_hdr *hdr = (const void *)pktdata; 1539 int truncated = pktlen - pktsize; 1540 1541 /* this would be a firmware bug */ 1542 if (WARN_ON_ONCE(truncated < 0)) 1543 truncated = 0; 1544 1545 if (ieee80211_is_data(hdr->frame_control)) { 1546 int hdrlen = ieee80211_hdrlen(hdr->frame_control); 1547 int ivlen = 0, icvlen = 4; /* also FCS */ 1548 1549 pkt = alloc_skb(pktsize, GFP_KERNEL); 1550 if (!pkt) 1551 goto report; 1552 1553 skb_put_data(pkt, pktdata, hdrlen); 1554 pktdata += hdrlen; 1555 pktsize -= hdrlen; 1556 1557 if (ieee80211_has_protected(hdr->frame_control)) { 1558 /* 1559 * This is unlocked and using gtk_i(c)vlen, 1560 * but since everything is under RTNL still 1561 * that's not really a problem - changing 1562 * it would be difficult. 1563 */ 1564 if (is_multicast_ether_addr(hdr->addr1)) { 1565 ivlen = mvm->gtk_ivlen; 1566 icvlen += mvm->gtk_icvlen; 1567 } else { 1568 ivlen = mvm->ptk_ivlen; 1569 icvlen += mvm->ptk_icvlen; 1570 } 1571 } 1572 1573 /* if truncated, FCS/ICV is (partially) gone */ 1574 if (truncated >= icvlen) { 1575 icvlen = 0; 1576 truncated -= icvlen; 1577 } else { 1578 icvlen -= truncated; 1579 truncated = 0; 1580 } 1581 1582 pktsize -= ivlen + icvlen; 1583 pktdata += ivlen; 1584 1585 skb_put_data(pkt, pktdata, pktsize); 1586 1587 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) 1588 goto report; 1589 wakeup.packet = pkt->data; 1590 wakeup.packet_present_len = pkt->len; 1591 wakeup.packet_len = pkt->len - truncated; 1592 wakeup.packet_80211 = false; 1593 } else { 1594 int fcslen = 4; 1595 1596 if (truncated >= 4) { 1597 truncated -= 4; 1598 fcslen = 0; 1599 } else { 1600 fcslen -= truncated; 1601 truncated = 0; 1602 } 1603 pktsize -= fcslen; 1604 wakeup.packet = status->wake_packet; 1605 wakeup.packet_present_len = pktsize; 1606 wakeup.packet_len = pktlen - truncated; 1607 wakeup.packet_80211 = true; 1608 } 1609 } 1610 1611 report: 1612 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 1613 kfree_skb(pkt); 1614 } 1615 1616 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1617 { 1618 u64 pn = le64_to_cpu(le_pn); 1619 1620 seq->ccmp.pn[0] = pn >> 40; 1621 seq->ccmp.pn[1] = pn >> 32; 1622 seq->ccmp.pn[2] = pn >> 24; 1623 seq->ccmp.pn[3] = pn >> 16; 1624 seq->ccmp.pn[4] = pn >> 8; 1625 seq->ccmp.pn[5] = pn; 1626 } 1627 1628 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, 1629 struct ieee80211_key_seq *seq) 1630 { 1631 iwl_mvm_le64_to_aes_seq(sc->pn, seq); 1632 } 1633 1634 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1635 { 1636 u64 pn = le64_to_cpu(le_pn); 1637 1638 seq->tkip.iv16 = (u16)pn; 1639 seq->tkip.iv32 = (u32)(pn >> 16); 1640 } 1641 1642 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, 1643 struct ieee80211_key_seq *seq) 1644 { 1645 seq->tkip.iv32 = le32_to_cpu(sc->iv32); 1646 seq->tkip.iv16 = le16_to_cpu(sc->iv16); 1647 } 1648 1649 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key, 1650 struct ieee80211_key_seq *seq) 1651 { 1652 int tid; 1653 1654 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) 1655 ieee80211_set_key_rx_seq(key, tid, &seq[tid]); 1656 } 1657 1658 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm, 1659 struct iwl_wowlan_status_data *status, 1660 struct ieee80211_sta *sta, 1661 struct ieee80211_key_conf *key) 1662 { 1663 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1664 struct iwl_mvm_key_pn *ptk_pn; 1665 int tid; 1666 1667 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq); 1668 1669 if (!iwl_mvm_has_new_rx_api(mvm)) 1670 return; 1671 1672 1673 rcu_read_lock(); 1674 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 1675 if (WARN_ON(!ptk_pn)) { 1676 rcu_read_unlock(); 1677 return; 1678 } 1679 1680 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1681 int i; 1682 1683 for (i = 1; i < mvm->trans->info.num_rxqs; i++) 1684 memcpy(ptk_pn->q[i].pn[tid], 1685 status->ptk.aes.seq[tid].ccmp.pn, 1686 IEEE80211_CCMP_PN_LEN); 1687 } 1688 rcu_read_unlock(); 1689 } 1690 1691 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status, 1692 union iwl_all_tsc_rsc *sc) 1693 { 1694 int i; 1695 1696 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1697 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1698 1699 /* GTK RX counters */ 1700 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1701 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i], 1702 &status->gtk_seq[0].tkip.seq[i]); 1703 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i], 1704 &status->gtk_seq[0].aes.seq[i]); 1705 } 1706 status->gtk_seq[0].valid = true; 1707 status->gtk_seq[0].key_id = -1; 1708 1709 /* PTK TX counter */ 1710 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) | 1711 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16); 1712 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn); 1713 1714 /* PTK RX counters */ 1715 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1716 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i], 1717 &status->ptk.tkip.seq[i]); 1718 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i], 1719 &status->ptk.aes.seq[i]); 1720 } 1721 } 1722 1723 static void 1724 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status, 1725 struct iwl_wowlan_all_rsc_tsc_v5 *sc, 1726 unsigned int idx, unsigned int key_id) 1727 { 1728 int tid; 1729 1730 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1731 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid], 1732 &status->gtk_seq[idx].tkip.seq[tid]); 1733 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid], 1734 &status->gtk_seq[idx].aes.seq[tid]); 1735 } 1736 1737 status->gtk_seq[idx].valid = true; 1738 status->gtk_seq[idx].key_id = key_id; 1739 } 1740 1741 static void 1742 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status, 1743 struct iwl_wowlan_all_rsc_tsc_v5 *sc) 1744 { 1745 int i, tid; 1746 1747 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1748 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1749 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq)); 1750 1751 /* GTK RX counters */ 1752 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) { 1753 u8 entry = sc->mcast_key_id_map[i]; 1754 1755 if (entry < ARRAY_SIZE(sc->mcast_rsc)) 1756 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc, 1757 entry, i); 1758 } 1759 1760 /* PTK TX counters not needed, assigned in device */ 1761 1762 /* PTK RX counters */ 1763 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1764 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid], 1765 &status->ptk.tkip.seq[tid]); 1766 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid], 1767 &status->ptk.aes.seq[tid]); 1768 } 1769 } 1770 1771 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key, 1772 struct iwl_wowlan_status_data *status, 1773 int idx) 1774 { 1775 switch (key->cipher) { 1776 case WLAN_CIPHER_SUITE_CCMP: 1777 case WLAN_CIPHER_SUITE_GCMP: 1778 case WLAN_CIPHER_SUITE_GCMP_256: 1779 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq); 1780 break; 1781 case WLAN_CIPHER_SUITE_TKIP: 1782 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq); 1783 break; 1784 default: 1785 WARN_ON(1); 1786 } 1787 } 1788 1789 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, 1790 struct iwl_wowlan_status_data *status) 1791 { 1792 int i; 1793 1794 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) { 1795 if (!status->gtk_seq[i].valid) 1796 continue; 1797 1798 /* Handle the case where we know the key ID */ 1799 if (status->gtk_seq[i].key_id == key->keyidx) { 1800 s8 new_key_id = -1; 1801 1802 if (status->num_of_gtk_rekeys) 1803 new_key_id = status->gtk[0].flags & 1804 IWL_WOWLAN_GTK_IDX_MASK; 1805 1806 /* Don't install a new key's value to an old key */ 1807 if (new_key_id != key->keyidx) 1808 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1809 continue; 1810 } 1811 1812 /* handle the case where we didn't, last key only */ 1813 if (status->gtk_seq[i].key_id == -1 && 1814 (!status->num_of_gtk_rekeys)) 1815 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1816 } 1817 } 1818 1819 struct iwl_mvm_d3_gtk_iter_data { 1820 struct iwl_mvm *mvm; 1821 struct iwl_wowlan_status_data *status; 1822 u32 gtk_cipher, igtk_cipher, bigtk_cipher; 1823 bool unhandled_cipher, igtk_support, bigtk_support; 1824 int num_keys; 1825 }; 1826 1827 static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw, 1828 struct ieee80211_vif *vif, 1829 struct ieee80211_sta *sta, 1830 struct ieee80211_key_conf *key, 1831 void *_data) 1832 { 1833 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1834 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1835 1836 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id) 1837 return; 1838 1839 if (data->unhandled_cipher) 1840 return; 1841 1842 switch (key->cipher) { 1843 case WLAN_CIPHER_SUITE_WEP40: 1844 case WLAN_CIPHER_SUITE_WEP104: 1845 /* ignore WEP completely, nothing to do */ 1846 return; 1847 case WLAN_CIPHER_SUITE_CCMP: 1848 case WLAN_CIPHER_SUITE_GCMP: 1849 case WLAN_CIPHER_SUITE_GCMP_256: 1850 case WLAN_CIPHER_SUITE_TKIP: 1851 /* we support these */ 1852 data->gtk_cipher = key->cipher; 1853 break; 1854 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1855 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1856 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1857 case WLAN_CIPHER_SUITE_AES_CMAC: 1858 /* we support these */ 1859 if (data->igtk_support && 1860 (key->keyidx == 4 || key->keyidx == 5)) { 1861 data->igtk_cipher = key->cipher; 1862 } else if (data->bigtk_support && 1863 (key->keyidx == 6 || key->keyidx == 7)) { 1864 data->bigtk_cipher = key->cipher; 1865 } else { 1866 data->unhandled_cipher = true; 1867 return; 1868 } 1869 break; 1870 default: 1871 /* everything else - disconnect from AP */ 1872 data->unhandled_cipher = true; 1873 return; 1874 } 1875 1876 data->num_keys++; 1877 } 1878 1879 static void 1880 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key, 1881 struct ieee80211_key_seq *seq, u32 cipher) 1882 { 1883 switch (cipher) { 1884 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1885 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1886 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn)); 1887 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn)); 1888 break; 1889 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1890 case WLAN_CIPHER_SUITE_AES_CMAC: 1891 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn)); 1892 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn)); 1893 break; 1894 default: 1895 WARN_ON(1); 1896 } 1897 } 1898 1899 static void 1900 iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status, 1901 struct ieee80211_key_conf *key, 1902 struct iwl_multicast_key_data *key_data) 1903 { 1904 if (status->num_of_gtk_rekeys && key_data->len) { 1905 /* remove rekeyed key */ 1906 ieee80211_remove_key(key); 1907 } else { 1908 struct ieee80211_key_seq seq; 1909 1910 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, 1911 &seq, 1912 key->cipher); 1913 ieee80211_set_key_rx_seq(key, 0, &seq); 1914 } 1915 } 1916 1917 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, 1918 struct ieee80211_vif *vif, 1919 struct ieee80211_sta *sta, 1920 struct ieee80211_key_conf *key, 1921 void *_data) 1922 { 1923 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1924 struct iwl_wowlan_status_data *status = data->status; 1925 s8 keyidx; 1926 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1927 1928 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id) 1929 return; 1930 1931 if (data->unhandled_cipher) 1932 return; 1933 1934 switch (key->cipher) { 1935 case WLAN_CIPHER_SUITE_WEP40: 1936 case WLAN_CIPHER_SUITE_WEP104: 1937 /* ignore WEP completely, nothing to do */ 1938 return; 1939 case WLAN_CIPHER_SUITE_CCMP: 1940 case WLAN_CIPHER_SUITE_GCMP: 1941 case WLAN_CIPHER_SUITE_GCMP_256: 1942 if (sta) { 1943 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn); 1944 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key); 1945 return; 1946 } 1947 fallthrough; 1948 case WLAN_CIPHER_SUITE_TKIP: 1949 if (sta) { 1950 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn); 1951 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq); 1952 return; 1953 } 1954 keyidx = key->keyidx; 1955 /* The current key is always sent by the FW, even if it wasn't 1956 * rekeyed during D3. 1957 * We remove an existing key if it has the same index as 1958 * a new key 1959 */ 1960 if (status->num_of_gtk_rekeys && 1961 ((status->gtk[0].len && keyidx == status->gtk[0].id) || 1962 (status->gtk[1].len && keyidx == status->gtk[1].id))) { 1963 ieee80211_remove_key(key); 1964 } else { 1965 iwl_mvm_set_key_rx_seq(key, data->status); 1966 } 1967 break; 1968 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1969 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1970 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1971 case WLAN_CIPHER_SUITE_AES_CMAC: 1972 if (key->keyidx == 4 || key->keyidx == 5) { 1973 iwl_mvm_d3_update_igtk_bigtk(status, key, 1974 &status->igtk); 1975 } 1976 if (key->keyidx == 6 || key->keyidx == 7) { 1977 u8 idx = key->keyidx == status->bigtk[1].id; 1978 1979 iwl_mvm_d3_update_igtk_bigtk(status, key, 1980 &status->bigtk[idx]); 1981 } 1982 } 1983 } 1984 1985 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status, 1986 struct ieee80211_vif *vif, 1987 struct iwl_mvm *mvm, u32 gtk_cipher) 1988 { 1989 int i, j; 1990 struct ieee80211_key_conf *key; 1991 DEFINE_RAW_FLEX(struct ieee80211_key_conf, conf, key, 1992 WOWLAN_KEY_MAX_SIZE); 1993 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1994 1995 conf->cipher = gtk_cipher; 1996 1997 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP); 1998 BUILD_BUG_ON(WOWLAN_KEY_MAX_SIZE < WLAN_KEY_LEN_CCMP); 1999 BUILD_BUG_ON(WOWLAN_KEY_MAX_SIZE < WLAN_KEY_LEN_GCMP_256); 2000 BUILD_BUG_ON(WOWLAN_KEY_MAX_SIZE < WLAN_KEY_LEN_TKIP); 2001 BUILD_BUG_ON(WOWLAN_KEY_MAX_SIZE < sizeof(status->gtk[0].key)); 2002 2003 switch (gtk_cipher) { 2004 case WLAN_CIPHER_SUITE_CCMP: 2005 case WLAN_CIPHER_SUITE_GCMP: 2006 conf->keylen = WLAN_KEY_LEN_CCMP; 2007 break; 2008 case WLAN_CIPHER_SUITE_GCMP_256: 2009 conf->keylen = WLAN_KEY_LEN_GCMP_256; 2010 break; 2011 case WLAN_CIPHER_SUITE_TKIP: 2012 conf->keylen = WLAN_KEY_LEN_TKIP; 2013 break; 2014 default: 2015 WARN_ON(1); 2016 } 2017 2018 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) { 2019 if (!status->gtk[i].len) 2020 continue; 2021 2022 conf->keyidx = status->gtk[i].id; 2023 IWL_DEBUG_WOWLAN(mvm, 2024 "Received from FW GTK cipher %d, key index %d\n", 2025 conf->cipher, conf->keyidx); 2026 memcpy(conf->key, status->gtk[i].key, 2027 sizeof(status->gtk[i].key)); 2028 2029 key = ieee80211_gtk_rekey_add(vif, conf, link_id); 2030 if (IS_ERR(key)) 2031 return false; 2032 2033 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) { 2034 if (!status->gtk_seq[j].valid || 2035 status->gtk_seq[j].key_id != key->keyidx) 2036 continue; 2037 iwl_mvm_set_key_rx_seq_idx(key, status, j); 2038 break; 2039 } 2040 WARN_ON(j == ARRAY_SIZE(status->gtk_seq)); 2041 } 2042 2043 return true; 2044 } 2045 2046 static bool 2047 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status, 2048 struct ieee80211_vif *vif, u32 cipher, 2049 struct iwl_multicast_key_data *key_data) 2050 { 2051 DEFINE_RAW_FLEX(struct ieee80211_key_conf, conf, key, 2052 WOWLAN_KEY_MAX_SIZE); 2053 struct ieee80211_key_conf *key_config; 2054 struct ieee80211_key_seq seq; 2055 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 2056 2057 conf->cipher = cipher; 2058 conf->keyidx = key_data->id; 2059 2060 if (!key_data->len) 2061 return true; 2062 2063 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf->cipher); 2064 2065 switch (cipher) { 2066 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 2067 conf->keylen = WLAN_KEY_LEN_BIP_GMAC_128; 2068 break; 2069 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 2070 conf->keylen = WLAN_KEY_LEN_BIP_GMAC_256; 2071 break; 2072 case WLAN_CIPHER_SUITE_AES_CMAC: 2073 conf->keylen = WLAN_KEY_LEN_AES_CMAC; 2074 break; 2075 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 2076 conf->keylen = WLAN_KEY_LEN_BIP_CMAC_256; 2077 break; 2078 default: 2079 WARN_ON(1); 2080 } 2081 BUILD_BUG_ON(WOWLAN_KEY_MAX_SIZE < sizeof(key_data->key)); 2082 memcpy(conf->key, key_data->key, conf->keylen); 2083 2084 key_config = ieee80211_gtk_rekey_add(vif, conf, link_id); 2085 if (IS_ERR(key_config)) 2086 return false; 2087 ieee80211_set_key_rx_seq(key_config, 0, &seq); 2088 2089 if (key_config->keyidx == 4 || key_config->keyidx == 5) { 2090 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2091 struct iwl_mvm_vif_link_info *mvm_link; 2092 2093 link_id = link_id < 0 ? 0 : link_id; 2094 mvm_link = mvmvif->link[link_id]; 2095 mvm_link->igtk = key_config; 2096 } 2097 2098 return true; 2099 } 2100 2101 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm) 2102 { 2103 u8 notif_ver; 2104 2105 if (!fw_has_api(&mvm->fw->ucode_capa, 2106 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) 2107 return 6; 2108 2109 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2110 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2111 WOWLAN_GET_STATUSES, 0); 2112 if (!notif_ver) 2113 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 2114 WOWLAN_GET_STATUSES, 7); 2115 2116 return notif_ver; 2117 } 2118 2119 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, 2120 struct ieee80211_vif *vif, 2121 struct iwl_wowlan_status_data *status) 2122 { 2123 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2124 struct iwl_mvm_d3_gtk_iter_data gtkdata = { 2125 .mvm = mvm, 2126 .status = status, 2127 }; 2128 int i; 2129 u32 disconnection_reasons = 2130 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 2131 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; 2132 2133 if (!status || !vif->bss_conf.bssid) 2134 return false; 2135 2136 if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 || 2137 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2138 WOWLAN_INFO_NOTIFICATION, 2139 0)) 2140 gtkdata.igtk_support = true; 2141 2142 if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2143 WOWLAN_INFO_NOTIFICATION, 2144 0) >= 3) 2145 gtkdata.bigtk_support = true; 2146 2147 /* find last GTK that we used initially, if any */ 2148 ieee80211_iter_keys(mvm->hw, vif, 2149 iwl_mvm_d3_find_last_keys, >kdata); 2150 /* not trying to keep connections with MFP/unhandled ciphers */ 2151 if (gtkdata.unhandled_cipher) 2152 return false; 2153 if (!gtkdata.num_keys) 2154 goto out; 2155 2156 /* 2157 * invalidate all other GTKs that might still exist and update 2158 * the one that we used 2159 */ 2160 ieee80211_iter_keys(mvm->hw, vif, 2161 iwl_mvm_d3_update_keys, >kdata); 2162 2163 if (status->num_of_gtk_rekeys) { 2164 __be64 replay_ctr = cpu_to_be64(status->replay_ctr); 2165 2166 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n", 2167 status->num_of_gtk_rekeys); 2168 2169 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher)) 2170 return false; 2171 2172 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2173 gtkdata.igtk_cipher, 2174 &status->igtk)) 2175 return false; 2176 2177 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) { 2178 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2179 gtkdata.bigtk_cipher, 2180 &status->bigtk[i])) 2181 return false; 2182 } 2183 2184 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, 2185 (void *)&replay_ctr, GFP_KERNEL); 2186 } 2187 2188 out: 2189 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2190 WOWLAN_GET_STATUSES, 2191 IWL_FW_CMD_VER_UNKNOWN) < 10) { 2192 mvmvif->seqno_valid = true; 2193 /* +0x10 because the set API expects next-to-use, not last-used */ 2194 mvmvif->seqno = status->non_qos_seq_ctr + 0x10; 2195 } 2196 2197 if (status->wakeup_reasons & disconnection_reasons) 2198 return false; 2199 2200 return true; 2201 } 2202 2203 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, 2204 struct iwl_wowlan_gtk_status_v2 *data) 2205 { 2206 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key)); 2207 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2208 sizeof(data->tkip_mic_key) > 2209 sizeof(status->gtk[0].key)); 2210 2211 status->gtk[0].len = data->key_len; 2212 status->gtk[0].flags = data->key_flags; 2213 2214 memcpy(status->gtk[0].key, data->key, sizeof(data->key)); 2215 2216 /* if it's as long as the TKIP encryption key, copy MIC key */ 2217 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2218 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2219 data->tkip_mic_key, sizeof(data->tkip_mic_key)); 2220 } 2221 2222 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, 2223 struct iwl_wowlan_gtk_status_v3 *data) 2224 { 2225 int data_idx, status_idx = 0; 2226 2227 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key)); 2228 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2229 sizeof(data[0].tkip_mic_key) > 2230 sizeof(status->gtk[0].key)); 2231 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM); 2232 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) { 2233 if (!(data[data_idx].key_len)) 2234 continue; 2235 status->gtk[status_idx].len = data[data_idx].key_len; 2236 status->gtk[status_idx].flags = data[data_idx].key_flags; 2237 status->gtk[status_idx].id = status->gtk[status_idx].flags & 2238 IWL_WOWLAN_GTK_IDX_MASK; 2239 2240 memcpy(status->gtk[status_idx].key, data[data_idx].key, 2241 sizeof(data[data_idx].key)); 2242 2243 /* if it's as long as the TKIP encryption key, copy MIC key */ 2244 if (status->gtk[status_idx].len == 2245 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2246 memcpy(status->gtk[status_idx].key + 2247 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2248 data[data_idx].tkip_mic_key, 2249 sizeof(data[data_idx].tkip_mic_key)); 2250 status_idx++; 2251 } 2252 } 2253 2254 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, 2255 struct iwl_wowlan_igtk_status *data) 2256 { 2257 int i; 2258 2259 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); 2260 BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn)); 2261 2262 if (!data->key_len) 2263 return; 2264 2265 status->igtk.len = data->key_len; 2266 status->igtk.flags = data->key_flags; 2267 status->igtk.id = u32_get_bits(data->key_flags, 2268 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2269 + WOWLAN_IGTK_MIN_INDEX; 2270 2271 memcpy(status->igtk.key, data->key, sizeof(data->key)); 2272 2273 /* mac80211 expects big endian for memcmp() to work, convert */ 2274 for (i = 0; i < sizeof(data->ipn); i++) 2275 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1]; 2276 } 2277 2278 static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status, 2279 const struct iwl_wowlan_igtk_status *data) 2280 { 2281 int data_idx, status_idx = 0; 2282 2283 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM); 2284 2285 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) { 2286 if (!data[data_idx].key_len) 2287 continue; 2288 2289 status->bigtk[status_idx].len = data[data_idx].key_len; 2290 status->bigtk[status_idx].flags = data[data_idx].key_flags; 2291 status->bigtk[status_idx].id = 2292 u32_get_bits(data[data_idx].key_flags, 2293 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2294 + WOWLAN_BIGTK_MIN_INDEX; 2295 2296 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) < 2297 sizeof(data[data_idx].key)); 2298 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) < 2299 sizeof(data[data_idx].ipn)); 2300 2301 memcpy(status->bigtk[status_idx].key, data[data_idx].key, 2302 sizeof(data[data_idx].key)); 2303 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn, 2304 sizeof(data[data_idx].ipn)); 2305 status_idx++; 2306 } 2307 } 2308 2309 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, 2310 struct iwl_wowlan_info_notif *data, 2311 struct iwl_wowlan_status_data *status, 2312 u32 len) 2313 { 2314 if (IWL_FW_CHECK(mvm, data->num_mlo_link_keys, 2315 "MLO is not supported, shouldn't receive MLO keys\n")) 2316 return; 2317 2318 if (len < sizeof(*data)) { 2319 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2320 status = NULL; 2321 return; 2322 } 2323 2324 if (mvm->fast_resume) 2325 return; 2326 2327 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2328 iwl_mvm_convert_gtk_v3(status, data->gtk); 2329 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2330 iwl_mvm_convert_bigtk(status, data->bigtk); 2331 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2332 status->pattern_number = le16_to_cpu(data->pattern_number); 2333 status->tid_offloaded_tx = data->tid_offloaded_tx; 2334 if (IWL_FW_CHECK(mvm, 2335 data->tid_offloaded_tx >= 2336 ARRAY_SIZE(status->qos_seq_ctr), 2337 "tid_offloaded_tx is out of bound %d\n", 2338 data->tid_offloaded_tx)) 2339 data->tid_offloaded_tx = 0; 2340 status->qos_seq_ctr[data->tid_offloaded_tx] = 2341 le16_to_cpu(data->qos_seq_ctr); 2342 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2343 status->num_of_gtk_rekeys = 2344 le32_to_cpu(data->num_of_gtk_rekeys); 2345 status->received_beacons = le32_to_cpu(data->received_beacons); 2346 status->tid_tear_down = data->tid_tear_down; 2347 } 2348 2349 static void 2350 iwl_mvm_parse_wowlan_info_notif_v3(struct iwl_mvm *mvm, 2351 struct iwl_wowlan_info_notif_v3 *data, 2352 struct iwl_wowlan_status_data *status, 2353 u32 len) 2354 { 2355 u32 i; 2356 2357 if (len < sizeof(*data)) { 2358 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2359 status = NULL; 2360 return; 2361 } 2362 2363 if (mvm->fast_resume) 2364 return; 2365 2366 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2367 iwl_mvm_convert_gtk_v3(status, data->gtk); 2368 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2369 iwl_mvm_convert_bigtk(status, data->bigtk); 2370 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2371 status->pattern_number = le16_to_cpu(data->pattern_number); 2372 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2373 status->qos_seq_ctr[i] = 2374 le16_to_cpu(data->qos_seq_ctr[i]); 2375 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2376 status->num_of_gtk_rekeys = 2377 le32_to_cpu(data->num_of_gtk_rekeys); 2378 status->received_beacons = le32_to_cpu(data->received_beacons); 2379 status->tid_tear_down = data->tid_tear_down; 2380 } 2381 2382 static void 2383 iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm, 2384 struct iwl_wowlan_info_notif_v2 *data, 2385 struct iwl_wowlan_status_data *status, 2386 u32 len) 2387 { 2388 u32 i; 2389 2390 if (len < sizeof(*data)) { 2391 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2392 status = NULL; 2393 return; 2394 } 2395 2396 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2397 iwl_mvm_convert_gtk_v3(status, data->gtk); 2398 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2399 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2400 status->pattern_number = le16_to_cpu(data->pattern_number); 2401 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2402 status->qos_seq_ctr[i] = 2403 le16_to_cpu(data->qos_seq_ctr[i]); 2404 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2405 status->num_of_gtk_rekeys = 2406 le32_to_cpu(data->num_of_gtk_rekeys); 2407 status->received_beacons = le32_to_cpu(data->received_beacons); 2408 status->tid_tear_down = data->tid_tear_down; 2409 } 2410 2411 /* Occasionally, templates would be nice. This is one of those times ... */ 2412 #define iwl_mvm_parse_wowlan_status_common(_ver) \ 2413 static struct iwl_wowlan_status_data * \ 2414 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \ 2415 struct iwl_wowlan_status_ ##_ver *data,\ 2416 int len) \ 2417 { \ 2418 struct iwl_wowlan_status_data *status; \ 2419 int data_size, i; \ 2420 \ 2421 if (len < sizeof(*data)) { \ 2422 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2423 return NULL; \ 2424 } \ 2425 \ 2426 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \ 2427 if (len != sizeof(*data) + data_size) { \ 2428 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2429 return NULL; \ 2430 } \ 2431 \ 2432 status = kzalloc(sizeof(*status), GFP_KERNEL); \ 2433 if (!status) \ 2434 return NULL; \ 2435 \ 2436 /* copy all the common fields */ \ 2437 status->replay_ctr = le64_to_cpu(data->replay_ctr); \ 2438 status->pattern_number = le16_to_cpu(data->pattern_number); \ 2439 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \ 2440 for (i = 0; i < 8; i++) \ 2441 status->qos_seq_ctr[i] = \ 2442 le16_to_cpu(data->qos_seq_ctr[i]); \ 2443 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \ 2444 status->num_of_gtk_rekeys = \ 2445 le32_to_cpu(data->num_of_gtk_rekeys); \ 2446 status->received_beacons = le32_to_cpu(data->received_beacons); \ 2447 status->wake_packet_length = \ 2448 le32_to_cpu(data->wake_packet_length); \ 2449 status->wake_packet_bufsize = \ 2450 le32_to_cpu(data->wake_packet_bufsize); \ 2451 if (status->wake_packet_bufsize) { \ 2452 status->wake_packet = \ 2453 kmemdup(data->wake_packet, \ 2454 status->wake_packet_bufsize, \ 2455 GFP_KERNEL); \ 2456 if (!status->wake_packet) { \ 2457 kfree(status); \ 2458 return NULL; \ 2459 } \ 2460 } else { \ 2461 status->wake_packet = NULL; \ 2462 } \ 2463 \ 2464 return status; \ 2465 } 2466 2467 iwl_mvm_parse_wowlan_status_common(v6) 2468 iwl_mvm_parse_wowlan_status_common(v7) 2469 iwl_mvm_parse_wowlan_status_common(v9) 2470 iwl_mvm_parse_wowlan_status_common(v12) 2471 2472 static struct iwl_wowlan_status_data * 2473 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id) 2474 { 2475 struct iwl_wowlan_status_data *status; 2476 struct iwl_wowlan_get_status_cmd get_status_cmd = { 2477 .sta_id = cpu_to_le32(sta_id), 2478 }; 2479 struct iwl_host_cmd cmd = { 2480 .id = WOWLAN_GET_STATUSES, 2481 .flags = CMD_WANT_SKB, 2482 .data = { &get_status_cmd, }, 2483 .len = { sizeof(get_status_cmd), }, 2484 }; 2485 int ret, len; 2486 u8 notif_ver; 2487 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 2488 IWL_FW_CMD_VER_UNKNOWN); 2489 2490 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN) 2491 cmd.len[0] = 0; 2492 2493 lockdep_assert_held(&mvm->mutex); 2494 2495 ret = iwl_mvm_send_cmd(mvm, &cmd); 2496 if (ret) { 2497 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret); 2498 return ERR_PTR(ret); 2499 } 2500 2501 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2502 2503 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2504 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm); 2505 2506 if (notif_ver < 7) { 2507 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data; 2508 2509 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len); 2510 if (!status) 2511 goto out_free_resp; 2512 2513 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) > 2514 sizeof(status->gtk[0].key)); 2515 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2516 sizeof(v6->gtk.tkip_mic_key) > 2517 sizeof(status->gtk[0].key)); 2518 2519 /* copy GTK info to the right place */ 2520 memcpy(status->gtk[0].key, v6->gtk.decrypt_key, 2521 sizeof(v6->gtk.decrypt_key)); 2522 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2523 v6->gtk.tkip_mic_key, 2524 sizeof(v6->gtk.tkip_mic_key)); 2525 2526 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc); 2527 2528 /* hardcode the key length to 16 since v6 only supports 16 */ 2529 status->gtk[0].len = 16; 2530 2531 /* 2532 * The key index only uses 2 bits (values 0 to 3) and 2533 * we always set bit 7 which means this is the 2534 * currently used key. 2535 */ 2536 status->gtk[0].flags = v6->gtk.key_index | BIT(7); 2537 } else if (notif_ver == 7) { 2538 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data; 2539 2540 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len); 2541 if (!status) 2542 goto out_free_resp; 2543 2544 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc); 2545 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]); 2546 iwl_mvm_convert_igtk(status, &v7->igtk[0]); 2547 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) { 2548 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data; 2549 2550 /* these three command versions have same layout and size, the 2551 * difference is only in a few not used (reserved) fields. 2552 */ 2553 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len); 2554 if (!status) 2555 goto out_free_resp; 2556 2557 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc); 2558 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]); 2559 iwl_mvm_convert_igtk(status, &v9->igtk[0]); 2560 2561 status->tid_tear_down = v9->tid_tear_down; 2562 } else if (notif_ver == 12) { 2563 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data; 2564 2565 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len); 2566 if (!status) 2567 goto out_free_resp; 2568 2569 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc); 2570 iwl_mvm_convert_gtk_v3(status, v12->gtk); 2571 iwl_mvm_convert_igtk(status, &v12->igtk[0]); 2572 2573 status->tid_tear_down = v12->tid_tear_down; 2574 } else { 2575 IWL_ERR(mvm, 2576 "Firmware advertises unknown WoWLAN status response %d!\n", 2577 notif_ver); 2578 status = NULL; 2579 } 2580 2581 out_free_resp: 2582 iwl_free_resp(&cmd); 2583 return status; 2584 } 2585 2586 /* releases the MVM mutex */ 2587 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, 2588 struct ieee80211_vif *vif, 2589 struct iwl_wowlan_status_data *status) 2590 { 2591 int i; 2592 bool keep = false; 2593 struct iwl_mvm_sta *mvm_ap_sta; 2594 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2595 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 2596 struct iwl_mvm_vif_link_info *mvm_link = mvmvif->link[link_id]; 2597 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 2598 PROT_OFFLOAD_GROUP, 2599 WOWLAN_INFO_NOTIFICATION, 2600 IWL_FW_CMD_VER_UNKNOWN); 2601 2602 if (WARN_ON(!mvm_link)) 2603 goto out_unlock; 2604 2605 if (!status) 2606 goto out_unlock; 2607 2608 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n", 2609 status->wakeup_reasons); 2610 2611 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, mvm_link->ap_sta_id); 2612 if (!mvm_ap_sta) 2613 goto out_unlock; 2614 2615 /* firmware stores last-used value, we store next value */ 2616 if (wowlan_info_ver >= 5) { 2617 mvm_ap_sta->tid_data[status->tid_offloaded_tx].seq_number = 2618 status->qos_seq_ctr[status->tid_offloaded_tx] + 0x10; 2619 } else { 2620 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2621 mvm_ap_sta->tid_data[i].seq_number = 2622 status->qos_seq_ctr[i] + 0x10; 2623 } 2624 2625 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 2626 i = mvm->offload_tid; 2627 iwl_trans_set_q_ptrs(mvm->trans, 2628 mvm_ap_sta->tid_data[i].txq_id, 2629 mvm_ap_sta->tid_data[i].seq_number >> 4); 2630 } 2631 2632 iwl_mvm_report_wakeup_reasons(mvm, vif, status); 2633 2634 keep = iwl_mvm_setup_connection_keep(mvm, vif, status); 2635 out_unlock: 2636 mutex_unlock(&mvm->mutex); 2637 return keep; 2638 } 2639 2640 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \ 2641 IWL_SCAN_MAX_PROFILES) 2642 2643 struct iwl_mvm_nd_results { 2644 u32 matched_profiles; 2645 u8 matches[ND_QUERY_BUF_LEN]; 2646 }; 2647 2648 static int 2649 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, 2650 struct iwl_mvm_nd_results *results) 2651 { 2652 struct iwl_scan_offload_match_info *query; 2653 struct iwl_host_cmd cmd = { 2654 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, 2655 .flags = CMD_WANT_SKB, 2656 }; 2657 int ret, len; 2658 size_t query_len, matches_len; 2659 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw); 2660 2661 ret = iwl_mvm_send_cmd(mvm, &cmd); 2662 if (ret) { 2663 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); 2664 return ret; 2665 } 2666 2667 if (fw_has_api(&mvm->fw->ucode_capa, 2668 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2669 query_len = sizeof(struct iwl_scan_offload_match_info); 2670 matches_len = sizeof(struct iwl_scan_offload_profile_match) * 2671 max_profiles; 2672 } else { 2673 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1); 2674 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) * 2675 max_profiles; 2676 } 2677 2678 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2679 if (len < query_len) { 2680 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); 2681 ret = -EIO; 2682 goto out_free_resp; 2683 } 2684 2685 query = (void *)cmd.resp_pkt->data; 2686 2687 results->matched_profiles = le32_to_cpu(query->matched_profiles); 2688 memcpy(results->matches, query->matches, matches_len); 2689 2690 #ifdef CONFIG_IWLWIFI_DEBUGFS 2691 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); 2692 #endif 2693 2694 out_free_resp: 2695 iwl_free_resp(&cmd); 2696 return ret; 2697 } 2698 2699 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm, 2700 struct iwl_mvm_nd_results *results, 2701 int idx) 2702 { 2703 int n_chans = 0, i; 2704 2705 if (fw_has_api(&mvm->fw->ucode_capa, 2706 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2707 struct iwl_scan_offload_profile_match *matches = 2708 (void *)results->matches; 2709 2710 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++) 2711 n_chans += hweight8(matches[idx].matching_channels[i]); 2712 } else { 2713 struct iwl_scan_offload_profile_match_v1 *matches = 2714 (void *)results->matches; 2715 2716 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++) 2717 n_chans += hweight8(matches[idx].matching_channels[i]); 2718 } 2719 2720 return n_chans; 2721 } 2722 2723 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm, 2724 struct iwl_mvm_nd_results *results, 2725 struct cfg80211_wowlan_nd_match *match, 2726 int idx) 2727 { 2728 int i; 2729 int n_channels = 0; 2730 2731 if (fw_has_api(&mvm->fw->ucode_capa, 2732 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2733 struct iwl_scan_offload_profile_match *matches = 2734 (void *)results->matches; 2735 2736 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++) 2737 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2738 match->channels[n_channels++] = 2739 mvm->nd_channels[i]->center_freq; 2740 } else { 2741 struct iwl_scan_offload_profile_match_v1 *matches = 2742 (void *)results->matches; 2743 2744 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++) 2745 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2746 match->channels[n_channels++] = 2747 mvm->nd_channels[i]->center_freq; 2748 } 2749 /* We may have ended up with fewer channels than we allocated. */ 2750 match->n_channels = n_channels; 2751 } 2752 2753 /** 2754 * enum iwl_d3_notif - d3 notifications 2755 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received 2756 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received 2757 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received 2758 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received 2759 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received 2760 */ 2761 enum iwl_d3_notif { 2762 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0), 2763 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1), 2764 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2), 2765 IWL_D3_ND_MATCH_INFO = BIT(3), 2766 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4) 2767 }; 2768 2769 /* manage d3 resume data */ 2770 struct iwl_d3_data { 2771 struct iwl_wowlan_status_data *status; 2772 bool test; 2773 u32 d3_end_flags; 2774 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */ 2775 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */ 2776 struct iwl_mvm_nd_results *nd_results; 2777 bool nd_results_valid; 2778 }; 2779 2780 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, 2781 struct ieee80211_vif *vif, 2782 struct iwl_d3_data *d3_data) 2783 { 2784 struct cfg80211_wowlan_nd_info *net_detect = NULL; 2785 struct cfg80211_wowlan_wakeup wakeup = { 2786 .pattern_idx = -1, 2787 }; 2788 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 2789 unsigned long matched_profiles; 2790 u32 reasons = 0; 2791 int i, n_matches, ret; 2792 2793 if (WARN_ON(!d3_data || !d3_data->status)) 2794 goto out; 2795 2796 reasons = d3_data->status->wakeup_reasons; 2797 2798 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 2799 wakeup.rfkill_release = true; 2800 2801 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) 2802 goto out; 2803 2804 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2805 WOWLAN_INFO_NOTIFICATION, 0)) { 2806 IWL_INFO(mvm, "Query FW for ND results\n"); 2807 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results); 2808 2809 } else { 2810 IWL_INFO(mvm, "Notification based ND results\n"); 2811 ret = d3_data->nd_results_valid ? 0 : -1; 2812 } 2813 2814 if (ret || !d3_data->nd_results->matched_profiles) { 2815 wakeup_report = NULL; 2816 goto out; 2817 } 2818 2819 matched_profiles = d3_data->nd_results->matched_profiles; 2820 if (mvm->n_nd_match_sets) { 2821 n_matches = hweight_long(matched_profiles); 2822 } else { 2823 IWL_ERR(mvm, "no net detect match information available\n"); 2824 n_matches = 0; 2825 } 2826 2827 net_detect = kzalloc(struct_size(net_detect, matches, n_matches), 2828 GFP_KERNEL); 2829 if (!net_detect || !n_matches) 2830 goto out_report_nd; 2831 net_detect->n_matches = n_matches; 2832 n_matches = 0; 2833 2834 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { 2835 struct cfg80211_wowlan_nd_match *match; 2836 int idx, n_channels = 0; 2837 2838 n_channels = iwl_mvm_query_num_match_chans(mvm, 2839 d3_data->nd_results, 2840 i); 2841 2842 match = kzalloc(struct_size(match, channels, n_channels), 2843 GFP_KERNEL); 2844 if (!match) 2845 goto out_report_nd; 2846 match->n_channels = n_channels; 2847 2848 net_detect->matches[n_matches++] = match; 2849 2850 /* We inverted the order of the SSIDs in the scan 2851 * request, so invert the index here. 2852 */ 2853 idx = mvm->n_nd_match_sets - i - 1; 2854 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; 2855 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, 2856 match->ssid.ssid_len); 2857 2858 if (mvm->n_nd_channels < n_channels) 2859 continue; 2860 2861 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i); 2862 } 2863 /* We may have fewer matches than we allocated. */ 2864 net_detect->n_matches = n_matches; 2865 2866 out_report_nd: 2867 wakeup.net_detect = net_detect; 2868 out: 2869 iwl_mvm_free_nd(mvm); 2870 2871 mutex_unlock(&mvm->mutex); 2872 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 2873 2874 if (net_detect) { 2875 for (i = 0; i < net_detect->n_matches; i++) 2876 kfree(net_detect->matches[i]); 2877 kfree(net_detect); 2878 } 2879 } 2880 2881 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, 2882 struct ieee80211_vif *vif) 2883 { 2884 /* skip the one we keep connection on */ 2885 if (data == vif) 2886 return; 2887 2888 if (vif->type == NL80211_IFTYPE_STATION) 2889 ieee80211_resume_disconnect(vif); 2890 } 2891 2892 enum rt_status { 2893 FW_ALIVE, 2894 FW_NEEDS_RESET, 2895 FW_ERROR, 2896 }; 2897 2898 static enum rt_status iwl_mvm_check_rt_status(struct iwl_mvm *mvm, 2899 struct ieee80211_vif *vif) 2900 { 2901 u32 err_id; 2902 2903 /* check for lmac1 error */ 2904 if (iwl_fwrt_read_err_table(mvm->trans, 2905 mvm->trans->dbg.lmac_error_event_table[0], 2906 &err_id)) { 2907 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) { 2908 IWL_WARN(mvm, "Rfkill was toggled during suspend\n"); 2909 if (vif) { 2910 struct cfg80211_wowlan_wakeup wakeup = { 2911 .rfkill_release = true, 2912 }; 2913 2914 ieee80211_report_wowlan_wakeup(vif, &wakeup, 2915 GFP_KERNEL); 2916 } 2917 2918 return FW_NEEDS_RESET; 2919 } 2920 return FW_ERROR; 2921 } 2922 2923 /* check if we have lmac2 set and check for error */ 2924 if (iwl_fwrt_read_err_table(mvm->trans, 2925 mvm->trans->dbg.lmac_error_event_table[1], 2926 NULL)) 2927 return FW_ERROR; 2928 2929 /* check for umac error */ 2930 if (iwl_fwrt_read_err_table(mvm->trans, 2931 mvm->trans->dbg.umac_error_event_table, 2932 NULL)) 2933 return FW_ERROR; 2934 2935 return FW_ALIVE; 2936 } 2937 2938 /* 2939 * This function assumes: 2940 * 1. The mutex is already held. 2941 * 2. The callee functions unlock the mutex. 2942 */ 2943 static bool 2944 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm, 2945 struct ieee80211_vif *vif, 2946 struct iwl_d3_data *d3_data) 2947 { 2948 lockdep_assert_held(&mvm->mutex); 2949 2950 /* if FW uses status notification, status shouldn't be NULL here */ 2951 if (!d3_data->status) { 2952 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2953 u8 sta_id = mvm->net_detect ? IWL_INVALID_STA : 2954 mvmvif->deflink.ap_sta_id; 2955 2956 /* bug - FW with MLO has status notification */ 2957 WARN_ON(ieee80211_vif_is_mld(vif)); 2958 2959 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id); 2960 } 2961 2962 if (mvm->net_detect) { 2963 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data); 2964 } else { 2965 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif, 2966 d3_data->status); 2967 2968 #ifdef CONFIG_IWLWIFI_DEBUGFS 2969 if (keep) 2970 mvm->keep_vif = vif; 2971 #endif 2972 2973 return keep; 2974 } 2975 return false; 2976 } 2977 2978 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \ 2979 IWL_WOWLAN_WAKEUP_BY_PATTERN | \ 2980 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\ 2981 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\ 2982 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\ 2983 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD) 2984 2985 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm, 2986 struct iwl_wowlan_wake_pkt_notif *notif, 2987 struct iwl_wowlan_status_data *status, 2988 u32 len) 2989 { 2990 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length); 2991 2992 if (len < sizeof(*notif)) { 2993 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n"); 2994 return -EIO; 2995 } 2996 2997 if (WARN_ON(!status)) { 2998 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n"); 2999 return -EIO; 3000 } 3001 3002 if (WARN_ON(!(status->wakeup_reasons & 3003 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) { 3004 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n", 3005 status->wakeup_reasons); 3006 return -EIO; 3007 } 3008 3009 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet); 3010 3011 /* data_size got the padding from the notification, remove it. */ 3012 if (packet_len < data_size) 3013 data_size = packet_len; 3014 3015 status->wake_packet = kmemdup(notif->wake_packet, data_size, 3016 GFP_ATOMIC); 3017 3018 if (!status->wake_packet) 3019 return -ENOMEM; 3020 3021 status->wake_packet_length = packet_len; 3022 status->wake_packet_bufsize = data_size; 3023 3024 return 0; 3025 } 3026 3027 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm, 3028 struct iwl_d3_data *d3_data, 3029 struct iwl_scan_offload_match_info *notif, 3030 u32 len) 3031 { 3032 struct iwl_wowlan_status_data *status = d3_data->status; 3033 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); 3034 struct iwl_mvm_nd_results *results = d3_data->nd_results; 3035 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) * 3036 iwl_umac_scan_get_max_profiles(mvm->fw); 3037 3038 if (IS_ERR_OR_NULL(vif)) 3039 return; 3040 3041 if (len < sizeof(struct iwl_scan_offload_match_info)) { 3042 IWL_ERR(mvm, "Invalid scan match info notification\n"); 3043 return; 3044 } 3045 3046 if (!mvm->net_detect) { 3047 IWL_ERR(mvm, "Unexpected scan match info notification\n"); 3048 return; 3049 } 3050 3051 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 3052 IWL_ERR(mvm, 3053 "Ignore scan match info notification: no reason\n"); 3054 return; 3055 } 3056 3057 #ifdef CONFIG_IWLWIFI_DEBUGFS 3058 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done); 3059 #endif 3060 3061 results->matched_profiles = le32_to_cpu(notif->matched_profiles); 3062 IWL_INFO(mvm, "number of matched profiles=%u\n", 3063 results->matched_profiles); 3064 3065 if (results->matched_profiles) { 3066 memcpy(results->matches, notif->matches, matches_len); 3067 d3_data->nd_results_valid = true; 3068 } 3069 3070 /* no scan should be active at this point */ 3071 mvm->scan_status = 0; 3072 for (i = 0; i < mvm->max_scans; i++) 3073 mvm->scan_uid_status[i] = 0; 3074 } 3075 3076 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait, 3077 struct iwl_rx_packet *pkt, void *data) 3078 { 3079 struct iwl_mvm *mvm = 3080 container_of(notif_wait, struct iwl_mvm, notif_wait); 3081 struct iwl_d3_data *d3_data = data; 3082 u32 len = iwl_rx_packet_payload_len(pkt); 3083 int ret; 3084 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 3085 PROT_OFFLOAD_GROUP, 3086 WOWLAN_INFO_NOTIFICATION, 3087 IWL_FW_CMD_VER_UNKNOWN); 3088 3089 3090 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) { 3091 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): { 3092 3093 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) { 3094 /* We might get two notifications due to dual bss */ 3095 IWL_DEBUG_WOWLAN(mvm, 3096 "Got additional wowlan info notification\n"); 3097 break; 3098 } 3099 3100 if (wowlan_info_ver < 2) { 3101 struct iwl_wowlan_info_notif_v1 *notif_v1 = 3102 (void *)pkt->data; 3103 struct iwl_wowlan_info_notif_v2 *notif_v2; 3104 3105 notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC); 3106 3107 if (!notif_v2) 3108 return false; 3109 3110 notif_v2->tid_tear_down = notif_v1->tid_tear_down; 3111 notif_v2->station_id = notif_v1->station_id; 3112 memset_after(notif_v2, 0, station_id); 3113 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, 3114 d3_data->status, 3115 len); 3116 kfree(notif_v2); 3117 3118 } else if (wowlan_info_ver == 2) { 3119 struct iwl_wowlan_info_notif_v2 *notif_v2 = 3120 (void *)pkt->data; 3121 3122 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, 3123 d3_data->status, 3124 len); 3125 } else if (wowlan_info_ver == 3) { 3126 struct iwl_wowlan_info_notif_v3 *notif = 3127 (void *)pkt->data; 3128 3129 iwl_mvm_parse_wowlan_info_notif_v3(mvm, notif, 3130 d3_data->status, len); 3131 } else if (wowlan_info_ver == 5) { 3132 struct iwl_wowlan_info_notif *notif = 3133 (void *)pkt->data; 3134 3135 iwl_mvm_parse_wowlan_info_notif(mvm, notif, 3136 d3_data->status, len); 3137 } else { 3138 IWL_FW_CHECK(mvm, 1, 3139 "Firmware advertises unknown WoWLAN info notification %d!\n", 3140 wowlan_info_ver); 3141 return false; 3142 } 3143 3144 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO; 3145 3146 if (d3_data->status && 3147 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT) 3148 /* We are supposed to get also wake packet notif */ 3149 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 3150 3151 break; 3152 } 3153 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): { 3154 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data; 3155 3156 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) { 3157 /* We shouldn't get two wake packet notifications */ 3158 IWL_ERR(mvm, 3159 "Got additional wowlan wake packet notification\n"); 3160 } else { 3161 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 3162 len = iwl_rx_packet_payload_len(pkt); 3163 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif, 3164 d3_data->status, 3165 len); 3166 if (ret) 3167 IWL_ERR(mvm, 3168 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n"); 3169 } 3170 3171 break; 3172 } 3173 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): { 3174 struct iwl_scan_offload_match_info *notif = (void *)pkt->data; 3175 3176 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) { 3177 IWL_ERR(mvm, 3178 "Got additional netdetect match info\n"); 3179 break; 3180 } 3181 3182 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO; 3183 3184 /* explicitly set this in the 'expected' as well */ 3185 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO; 3186 3187 len = iwl_rx_packet_payload_len(pkt); 3188 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len); 3189 break; 3190 } 3191 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): { 3192 struct iwl_d3_end_notif *notif = (void *)pkt->data; 3193 3194 d3_data->d3_end_flags = __le32_to_cpu(notif->flags); 3195 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF; 3196 3197 break; 3198 } 3199 default: 3200 WARN_ON(1); 3201 } 3202 3203 return d3_data->notif_received == d3_data->notif_expected; 3204 } 3205 3206 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test) 3207 { 3208 int ret; 3209 enum iwl_d3_status d3_status; 3210 struct iwl_host_cmd cmd = { 3211 .id = D0I3_END_CMD, 3212 .flags = CMD_WANT_SKB, 3213 }; 3214 bool reset = fw_has_capa(&mvm->fw->ucode_capa, 3215 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3216 3217 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset); 3218 if (ret) 3219 return ret; 3220 3221 if (d3_status != IWL_D3_STATUS_ALIVE) { 3222 IWL_INFO(mvm, "Device was reset during suspend\n"); 3223 return -ENOENT; 3224 } 3225 3226 /* 3227 * We should trigger resume flow using command only for 22000 family 3228 * AX210 and above don't need the command since they have 3229 * the doorbell interrupt. 3230 */ 3231 if (mvm->trans->mac_cfg->device_family <= IWL_DEVICE_FAMILY_22000 && 3232 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) { 3233 ret = iwl_mvm_send_cmd(mvm, &cmd); 3234 if (ret < 0) 3235 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n", 3236 ret); 3237 } 3238 3239 return ret; 3240 } 3241 3242 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 3) 3243 3244 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm, 3245 struct iwl_d3_data *d3_data) 3246 { 3247 static const u16 d3_resume_notif[] = { 3248 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION), 3249 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION), 3250 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF), 3251 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3252 }; 3253 static const u16 d3_fast_resume_notif[] = { 3254 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3255 }; 3256 struct iwl_notification_wait wait_d3_notif; 3257 int ret; 3258 3259 if (mvm->fast_resume) 3260 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3261 d3_fast_resume_notif, 3262 ARRAY_SIZE(d3_fast_resume_notif), 3263 iwl_mvm_wait_d3_notif, d3_data); 3264 else 3265 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3266 d3_resume_notif, 3267 ARRAY_SIZE(d3_resume_notif), 3268 iwl_mvm_wait_d3_notif, d3_data); 3269 3270 ret = iwl_mvm_resume_firmware(mvm, d3_data->test); 3271 if (ret) { 3272 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif); 3273 return ret; 3274 } 3275 3276 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif, 3277 IWL_MVM_D3_NOTIF_TIMEOUT); 3278 } 3279 3280 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm) 3281 { 3282 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3283 WOWLAN_INFO_NOTIFICATION, 0) && 3284 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3285 WOWLAN_WAKE_PKT_NOTIFICATION, 0) && 3286 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3287 D3_END_NOTIFICATION, 0); 3288 } 3289 3290 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) 3291 { 3292 struct ieee80211_vif *vif = NULL; 3293 int ret = 1; 3294 struct iwl_mvm_nd_results results = {}; 3295 struct iwl_d3_data d3_data = { 3296 .test = test, 3297 .notif_expected = 3298 IWL_D3_NOTIF_WOWLAN_INFO | 3299 IWL_D3_NOTIF_D3_END_NOTIF, 3300 .nd_results_valid = false, 3301 .nd_results = &results, 3302 }; 3303 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3304 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3305 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa, 3306 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST); 3307 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm); 3308 enum rt_status rt_status; 3309 bool keep = false; 3310 3311 mutex_lock(&mvm->mutex); 3312 3313 /* Apparently, the device went away and device_powered_off() was called, 3314 * don't even try to read the rt_status, the device is currently 3315 * inaccessible. 3316 */ 3317 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) { 3318 IWL_INFO(mvm, 3319 "Can't resume, device_powered_off() was called during wowlan\n"); 3320 goto err; 3321 } 3322 3323 mvm->last_reset_or_resume_time_jiffies = jiffies; 3324 3325 /* get the BSS vif pointer again */ 3326 vif = iwl_mvm_get_bss_vif(mvm); 3327 if (IS_ERR_OR_NULL(vif)) 3328 goto err; 3329 3330 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3331 3332 rt_status = iwl_mvm_check_rt_status(mvm, vif); 3333 if (rt_status != FW_ALIVE) { 3334 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3335 if (rt_status == FW_ERROR) { 3336 IWL_ERR(mvm, "FW Error occurred during suspend. Restarting.\n"); 3337 iwl_mvm_dump_nic_error_log(mvm); 3338 iwl_dbg_tlv_time_point(&mvm->fwrt, 3339 IWL_FW_INI_TIME_POINT_FW_ASSERT, 3340 NULL); 3341 iwl_fw_dbg_collect_desc(&mvm->fwrt, 3342 &iwl_dump_desc_assert, 3343 false, 0); 3344 } 3345 ret = 1; 3346 goto err; 3347 } 3348 3349 if (resume_notif_based) { 3350 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL); 3351 if (!d3_data.status) { 3352 IWL_ERR(mvm, "Failed to allocate wowlan status\n"); 3353 ret = -ENOMEM; 3354 goto err; 3355 } 3356 3357 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3358 if (ret) 3359 goto err; 3360 } else { 3361 ret = iwl_mvm_resume_firmware(mvm, test); 3362 if (ret < 0) 3363 goto err; 3364 } 3365 3366 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN); 3367 3368 /* when reset is required we can't send these following commands */ 3369 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE) 3370 goto query_wakeup_reasons; 3371 3372 /* 3373 * Query the current location and source from the D3 firmware so we 3374 * can play it back when we re-intiailize the D0 firmware 3375 */ 3376 iwl_mvm_update_changed_regdom(mvm); 3377 3378 /* Re-configure PPAG settings */ 3379 iwl_mvm_ppag_send_cmd(mvm); 3380 3381 if (!unified_image) 3382 /* Re-configure default SAR profile */ 3383 iwl_mvm_sar_select_profile(mvm, 1, 1); 3384 3385 if (mvm->net_detect && unified_image) { 3386 /* If this is a non-unified image, we restart the FW, 3387 * so no need to stop the netdetect scan. If that 3388 * fails, continue and try to get the wake-up reasons, 3389 * but trigger a HW restart by keeping a failure code 3390 * in ret. 3391 */ 3392 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT, 3393 false); 3394 } 3395 3396 query_wakeup_reasons: 3397 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data); 3398 /* has unlocked the mutex, so skip that */ 3399 goto out; 3400 3401 err: 3402 mutex_unlock(&mvm->mutex); 3403 out: 3404 if (d3_data.status) 3405 kfree(d3_data.status->wake_packet); 3406 kfree(d3_data.status); 3407 iwl_mvm_free_nd(mvm); 3408 3409 if (!d3_data.test && !mvm->net_detect) 3410 ieee80211_iterate_active_interfaces_mtx(mvm->hw, 3411 IEEE80211_IFACE_ITER_NORMAL, 3412 iwl_mvm_d3_disconnect_iter, 3413 keep ? vif : NULL); 3414 3415 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3416 3417 /* no need to reset the device in unified images, if successful */ 3418 if (unified_image && !ret) { 3419 /* nothing else to do if we already sent D0I3_END_CMD */ 3420 if (d0i3_first) 3421 return 0; 3422 3423 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3424 D3_END_NOTIFICATION, 0)) { 3425 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL); 3426 if (!ret) 3427 return 0; 3428 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) { 3429 return 0; 3430 } 3431 } 3432 3433 /* 3434 * Reconfigure the device in one of the following cases: 3435 * 1. We are not using a unified image 3436 * 2. We are using a unified image but had an error while exiting D3 3437 */ 3438 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 3439 3440 return 1; 3441 } 3442 3443 int iwl_mvm_resume(struct ieee80211_hw *hw) 3444 { 3445 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3446 int ret; 3447 3448 ret = __iwl_mvm_resume(mvm, false); 3449 3450 iwl_mvm_resume_tcm(mvm); 3451 3452 iwl_fw_runtime_resume(&mvm->fwrt); 3453 3454 return ret; 3455 } 3456 3457 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) 3458 { 3459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3460 3461 device_set_wakeup_enable(mvm->trans->dev, enabled); 3462 } 3463 3464 void iwl_mvm_fast_suspend(struct iwl_mvm *mvm) 3465 { 3466 struct iwl_d3_manager_config d3_cfg_cmd_data = {}; 3467 int ret; 3468 3469 lockdep_assert_held(&mvm->mutex); 3470 3471 IWL_DEBUG_WOWLAN(mvm, "Starting fast suspend flow\n"); 3472 3473 mvm->fast_resume = true; 3474 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3475 3476 WARN_ON(iwl_mvm_power_update_device(mvm)); 3477 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, 0, 3478 sizeof(d3_cfg_cmd_data), &d3_cfg_cmd_data); 3479 if (ret) 3480 IWL_ERR(mvm, 3481 "fast suspend: couldn't send D3_CONFIG_CMD %d\n", ret); 3482 3483 ret = iwl_trans_d3_suspend(mvm->trans, false, false); 3484 if (ret) 3485 IWL_ERR(mvm, "fast suspend: trans_d3_suspend failed %d\n", ret); 3486 } 3487 3488 int iwl_mvm_fast_resume(struct iwl_mvm *mvm) 3489 { 3490 struct iwl_d3_data d3_data = { 3491 .notif_expected = 3492 IWL_D3_NOTIF_D3_END_NOTIF, 3493 }; 3494 enum rt_status rt_status; 3495 int ret; 3496 3497 lockdep_assert_held(&mvm->mutex); 3498 3499 IWL_DEBUG_WOWLAN(mvm, "Starting the fast resume flow\n"); 3500 3501 mvm->last_reset_or_resume_time_jiffies = jiffies; 3502 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3503 3504 rt_status = iwl_mvm_check_rt_status(mvm, NULL); 3505 if (rt_status != FW_ALIVE) { 3506 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3507 if (rt_status == FW_ERROR) { 3508 IWL_ERR(mvm, 3509 "iwl_mvm_check_rt_status failed, device is gone during suspend\n"); 3510 iwl_mvm_dump_nic_error_log(mvm); 3511 iwl_dbg_tlv_time_point(&mvm->fwrt, 3512 IWL_FW_INI_TIME_POINT_FW_ASSERT, 3513 NULL); 3514 iwl_fw_dbg_collect_desc(&mvm->fwrt, 3515 &iwl_dump_desc_assert, 3516 false, 0); 3517 } 3518 mvm->trans->state = IWL_TRANS_NO_FW; 3519 ret = -ENODEV; 3520 3521 goto out; 3522 } 3523 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3524 3525 if (ret) { 3526 IWL_ERR(mvm, "Couldn't get the d3 notif %d\n", ret); 3527 mvm->trans->state = IWL_TRANS_NO_FW; 3528 } 3529 3530 out: 3531 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3532 mvm->fast_resume = false; 3533 3534 return ret; 3535 } 3536 3537 #ifdef CONFIG_IWLWIFI_DEBUGFS 3538 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) 3539 { 3540 struct iwl_mvm *mvm = inode->i_private; 3541 int err; 3542 3543 if (mvm->d3_test_active) 3544 return -EBUSY; 3545 3546 file->private_data = inode->i_private; 3547 3548 iwl_mvm_pause_tcm(mvm, true); 3549 3550 iwl_fw_runtime_suspend(&mvm->fwrt); 3551 3552 /* start pseudo D3 */ 3553 rtnl_lock(); 3554 wiphy_lock(mvm->hw->wiphy); 3555 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); 3556 wiphy_unlock(mvm->hw->wiphy); 3557 rtnl_unlock(); 3558 if (err > 0) 3559 err = -EINVAL; 3560 if (err) 3561 return err; 3562 3563 mvm->d3_test_active = true; 3564 mvm->keep_vif = NULL; 3565 return 0; 3566 } 3567 3568 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, 3569 size_t count, loff_t *ppos) 3570 { 3571 struct iwl_mvm *mvm = file->private_data; 3572 unsigned long end = jiffies + 60 * HZ; 3573 u32 pme_asserted; 3574 3575 while (true) { 3576 /* read pme_ptr if available */ 3577 if (mvm->d3_test_pme_ptr) { 3578 pme_asserted = iwl_trans_read_mem32(mvm->trans, 3579 mvm->d3_test_pme_ptr); 3580 if (pme_asserted) 3581 break; 3582 } 3583 3584 if (msleep_interruptible(100)) 3585 break; 3586 3587 if (time_is_before_jiffies(end)) { 3588 IWL_ERR(mvm, 3589 "ending pseudo-D3 with timeout after ~60 seconds\n"); 3590 return -ETIMEDOUT; 3591 } 3592 } 3593 3594 return 0; 3595 } 3596 3597 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, 3598 struct ieee80211_vif *vif) 3599 { 3600 /* skip the one we keep connection on */ 3601 if (_data == vif) 3602 return; 3603 3604 if (vif->type == NL80211_IFTYPE_STATION) 3605 ieee80211_connection_loss(vif); 3606 } 3607 3608 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) 3609 { 3610 struct iwl_mvm *mvm = inode->i_private; 3611 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3612 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3613 3614 mvm->d3_test_active = false; 3615 3616 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3617 3618 rtnl_lock(); 3619 wiphy_lock(mvm->hw->wiphy); 3620 __iwl_mvm_resume(mvm, true); 3621 wiphy_unlock(mvm->hw->wiphy); 3622 rtnl_unlock(); 3623 3624 iwl_mvm_resume_tcm(mvm); 3625 3626 iwl_fw_runtime_resume(&mvm->fwrt); 3627 3628 iwl_abort_notification_waits(&mvm->notif_wait); 3629 if (!unified_image) { 3630 int remaining_time = 10; 3631 3632 ieee80211_restart_hw(mvm->hw); 3633 3634 /* wait for restart and disconnect all interfaces */ 3635 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3636 remaining_time > 0) { 3637 remaining_time--; 3638 msleep(1000); 3639 } 3640 3641 if (remaining_time == 0) 3642 IWL_ERR(mvm, "Timed out waiting for HW restart!\n"); 3643 } 3644 3645 ieee80211_iterate_active_interfaces_atomic( 3646 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 3647 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); 3648 3649 return 0; 3650 } 3651 3652 const struct file_operations iwl_dbgfs_d3_test_ops = { 3653 .open = iwl_mvm_d3_test_open, 3654 .read = iwl_mvm_d3_test_read, 3655 .release = iwl_mvm_d3_test_release, 3656 }; 3657 #endif 3658