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