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_v6 *wowlan_config_cmd, 926 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 927 struct ieee80211_sta *ap_sta) 928 { 929 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); 930 931 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ 932 933 wowlan_config_cmd->is_11n_connection = 934 ap_sta->deflink.ht_cap.ht_supported; 935 wowlan_config_cmd->flags = ENABLE_L3_FILTERING | 936 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; 937 938 if (ap_sta->mfp) 939 wowlan_config_cmd->flags |= IS_11W_ASSOC; 940 941 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) { 942 /* Query the last used seqno and set it */ 943 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); 944 945 if (ret < 0) 946 return ret; 947 948 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); 949 } 950 951 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 7) 952 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); 953 954 if (wowlan->disconnect) 955 wowlan_config_cmd->wakeup_filter |= 956 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 957 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 958 if (wowlan->magic_pkt) 959 wowlan_config_cmd->wakeup_filter |= 960 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); 961 if (wowlan->gtk_rekey_failure) 962 wowlan_config_cmd->wakeup_filter |= 963 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); 964 if (wowlan->eap_identity_req) 965 wowlan_config_cmd->wakeup_filter |= 966 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); 967 if (wowlan->four_way_handshake) 968 wowlan_config_cmd->wakeup_filter |= 969 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); 970 if (wowlan->n_patterns) 971 wowlan_config_cmd->wakeup_filter |= 972 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); 973 974 if (wowlan->rfkill_release) 975 wowlan_config_cmd->wakeup_filter |= 976 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); 977 978 if (wowlan->tcp) { 979 /* 980 * Set the "link change" (really "link lost") flag as well 981 * since that implies losing the TCP connection. 982 */ 983 wowlan_config_cmd->wakeup_filter |= 984 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | 985 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | 986 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | 987 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 988 } 989 990 if (wowlan->any) { 991 wowlan_config_cmd->wakeup_filter |= 992 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 993 IWL_WOWLAN_WAKEUP_LINK_CHANGE | 994 IWL_WOWLAN_WAKEUP_RX_FRAME | 995 IWL_WOWLAN_WAKEUP_BCN_FILTERING); 996 } 997 998 return 0; 999 } 1000 1001 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, 1002 struct ieee80211_vif *vif, 1003 struct iwl_mvm_vif_link_info *mvm_link) 1004 { 1005 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 1006 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1007 struct wowlan_key_reprogram_data key_data = {}; 1008 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1009 int ret; 1010 u8 cmd_ver; 1011 size_t cmd_size; 1012 1013 if (!unified) { 1014 /* 1015 * if we have to configure keys, call ieee80211_iter_keys(), 1016 * as we need non-atomic context in order to take the 1017 * required locks. 1018 */ 1019 /* 1020 * Note that currently we don't use CMD_ASYNC in the iterator. 1021 * In case of key_data.configure_keys, all the configured 1022 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will 1023 * take care of locking/unlocking mvm->mutex. 1024 */ 1025 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys, 1026 &key_data); 1027 1028 if (key_data.error) 1029 return -EIO; 1030 } 1031 1032 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link); 1033 if (ret) 1034 return ret; 1035 1036 if (!fw_has_api(&mvm->fw->ucode_capa, 1037 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) { 1038 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM, 1039 IWL_FW_CMD_VER_UNKNOWN); 1040 struct wowlan_key_tkip_data tkip_data = {}; 1041 int size; 1042 1043 if (ver == 2) { 1044 size = sizeof(tkip_data.tkip); 1045 tkip_data.tkip.sta_id = 1046 cpu_to_le32(mvm_link->ap_sta_id); 1047 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) { 1048 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1); 1049 } else { 1050 WARN_ON_ONCE(1); 1051 return -EINVAL; 1052 } 1053 1054 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data, 1055 &tkip_data); 1056 1057 if (tkip_data.have_tkip_keys) { 1058 /* send relevant data according to CMD version */ 1059 ret = iwl_mvm_send_cmd_pdu(mvm, 1060 WOWLAN_TKIP_PARAM, 1061 CMD_ASYNC, size, 1062 &tkip_data.tkip); 1063 if (ret) 1064 return ret; 1065 } 1066 } 1067 1068 /* configure rekey data only if offloaded rekey is supported (d3) */ 1069 if (mvmvif->rekey_data.valid) { 1070 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {}; 1071 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd = 1072 &kek_kck_cmd; 1073 struct wowlan_key_gtk_type_iter gtk_type_data = { 1074 .kek_kck_cmd = _kek_kck_cmd, 1075 }; 1076 1077 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1078 WOWLAN_KEK_KCK_MATERIAL, 1079 IWL_FW_CMD_VER_UNKNOWN); 1080 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 && 1081 cmd_ver != IWL_FW_CMD_VER_UNKNOWN)) 1082 return -EINVAL; 1083 1084 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter, 1085 >k_type_data); 1086 1087 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, 1088 mvmvif->rekey_data.kck_len); 1089 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len); 1090 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, 1091 mvmvif->rekey_data.kek_len); 1092 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len); 1093 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; 1094 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm); 1095 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id); 1096 1097 if (cmd_ver == 4) { 1098 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4); 1099 } else { 1100 if (cmd_ver == 3) 1101 cmd_size = 1102 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3); 1103 else 1104 cmd_size = 1105 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2); 1106 /* skip the sta_id at the beginning */ 1107 _kek_kck_cmd = (void *) 1108 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id)); 1109 } 1110 1111 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n", 1112 mvmvif->rekey_data.akm); 1113 1114 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL, 1115 CMD_ASYNC, cmd_size, _kek_kck_cmd); 1116 if (ret) 1117 return ret; 1118 } 1119 1120 return 0; 1121 } 1122 1123 static int 1124 iwl_mvm_wowlan_config(struct iwl_mvm *mvm, 1125 struct cfg80211_wowlan *wowlan, 1126 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd_v6, 1127 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 1128 struct iwl_mvm_vif_link_info *mvm_link, 1129 struct ieee80211_sta *ap_sta) 1130 { 1131 int ret; 1132 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1133 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1134 1135 mvm->offload_tid = wowlan_config_cmd_v6->offloading_tid; 1136 1137 if (!unified_image) { 1138 ret = iwl_mvm_switch_to_d3(mvm); 1139 if (ret) 1140 return ret; 1141 1142 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); 1143 if (ret) 1144 return ret; 1145 } 1146 1147 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link); 1148 if (ret) 1149 return ret; 1150 1151 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) > 6) { 1152 struct iwl_wowlan_config_cmd wowlan_config_cmd = { 1153 .wakeup_filter = wowlan_config_cmd_v6->wakeup_filter, 1154 .wowlan_ba_teardown_tids = 1155 wowlan_config_cmd_v6->wowlan_ba_teardown_tids, 1156 .is_11n_connection = 1157 wowlan_config_cmd_v6->is_11n_connection, 1158 .offloading_tid = wowlan_config_cmd_v6->offloading_tid, 1159 .flags = wowlan_config_cmd_v6->flags, 1160 .sta_id = wowlan_config_cmd_v6->sta_id, 1161 }; 1162 1163 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1164 sizeof(wowlan_config_cmd), 1165 &wowlan_config_cmd); 1166 } else { 1167 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1168 sizeof(*wowlan_config_cmd_v6), 1169 wowlan_config_cmd_v6); 1170 } 1171 if (ret) 1172 return ret; 1173 1174 if (fw_has_api(&mvm->fw->ucode_capa, 1175 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE)) 1176 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan); 1177 else 1178 ret = iwl_mvm_send_patterns_v1(mvm, wowlan); 1179 if (ret) 1180 return ret; 1181 1182 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0, 1183 mvm_link->ap_sta_id); 1184 } 1185 1186 static int 1187 iwl_mvm_netdetect_config(struct iwl_mvm *mvm, 1188 struct cfg80211_wowlan *wowlan, 1189 struct cfg80211_sched_scan_request *nd_config, 1190 struct ieee80211_vif *vif) 1191 { 1192 int ret; 1193 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1194 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1195 1196 if (!unified_image) { 1197 ret = iwl_mvm_switch_to_d3(mvm); 1198 if (ret) 1199 return ret; 1200 } else { 1201 /* In theory, we wouldn't have to stop a running sched 1202 * scan in order to start another one (for 1203 * net-detect). But in practice this doesn't seem to 1204 * work properly, so stop any running sched_scan now. 1205 */ 1206 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 1207 if (ret) 1208 return ret; 1209 } 1210 1211 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, 1212 IWL_MVM_SCAN_NETDETECT); 1213 if (ret) 1214 return ret; 1215 1216 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) 1217 return -EBUSY; 1218 1219 /* save the sched scan matchsets... */ 1220 if (nd_config->n_match_sets) { 1221 mvm->nd_match_sets = kmemdup(nd_config->match_sets, 1222 sizeof(*nd_config->match_sets) * 1223 nd_config->n_match_sets, 1224 GFP_KERNEL); 1225 if (mvm->nd_match_sets) 1226 mvm->n_nd_match_sets = nd_config->n_match_sets; 1227 } 1228 1229 /* ...and the sched scan channels for later reporting */ 1230 mvm->nd_channels = kmemdup(nd_config->channels, 1231 sizeof(*nd_config->channels) * 1232 nd_config->n_channels, 1233 GFP_KERNEL); 1234 if (mvm->nd_channels) 1235 mvm->n_nd_channels = nd_config->n_channels; 1236 1237 return 0; 1238 } 1239 1240 static void iwl_mvm_free_nd(struct iwl_mvm *mvm) 1241 { 1242 kfree(mvm->nd_match_sets); 1243 mvm->nd_match_sets = NULL; 1244 mvm->n_nd_match_sets = 0; 1245 kfree(mvm->nd_channels); 1246 mvm->nd_channels = NULL; 1247 mvm->n_nd_channels = 0; 1248 } 1249 1250 static int __iwl_mvm_suspend(struct ieee80211_hw *hw, 1251 struct cfg80211_wowlan *wowlan, 1252 bool test) 1253 { 1254 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1255 struct ieee80211_vif *vif = NULL; 1256 struct iwl_mvm_vif *mvmvif = NULL; 1257 struct ieee80211_sta *ap_sta = NULL; 1258 struct iwl_mvm_vif_link_info *mvm_link; 1259 struct iwl_d3_manager_config d3_cfg_cmd_data = { 1260 /* 1261 * Program the minimum sleep time to 10 seconds, as many 1262 * platforms have issues processing a wakeup signal while 1263 * still being in the process of suspending. 1264 */ 1265 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), 1266 }; 1267 struct iwl_host_cmd d3_cfg_cmd = { 1268 .id = D3_CONFIG_CMD, 1269 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3, 1270 .data[0] = &d3_cfg_cmd_data, 1271 .len[0] = sizeof(d3_cfg_cmd_data), 1272 }; 1273 int ret; 1274 int len __maybe_unused; 1275 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1276 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1277 1278 if (!wowlan) { 1279 /* 1280 * mac80211 shouldn't get here, but for D3 test 1281 * it doesn't warrant a warning 1282 */ 1283 WARN_ON(!test); 1284 return -EINVAL; 1285 } 1286 1287 vif = iwl_mvm_get_bss_vif(mvm); 1288 if (IS_ERR_OR_NULL(vif)) 1289 return 1; 1290 1291 ret = iwl_mvm_block_esr_sync(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN); 1292 if (ret) 1293 return ret; 1294 1295 mutex_lock(&mvm->mutex); 1296 1297 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1298 1299 synchronize_net(); 1300 1301 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1302 1303 mvm_link = mvmvif->link[iwl_mvm_get_primary_link(vif)]; 1304 if (WARN_ON_ONCE(!mvm_link)) { 1305 ret = -EINVAL; 1306 goto out_noreset; 1307 } 1308 1309 if (mvm_link->ap_sta_id == IWL_INVALID_STA) { 1310 /* if we're not associated, this must be netdetect */ 1311 if (!wowlan->nd_config) { 1312 ret = 1; 1313 goto out_noreset; 1314 } 1315 1316 ret = iwl_mvm_netdetect_config( 1317 mvm, wowlan, wowlan->nd_config, vif); 1318 if (ret) 1319 goto out; 1320 1321 mvm->net_detect = true; 1322 } else { 1323 struct iwl_wowlan_config_cmd_v6 wowlan_config_cmd = { 1324 .offloading_tid = 0, 1325 }; 1326 1327 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id; 1328 1329 ap_sta = rcu_dereference_protected( 1330 mvm->fw_id_to_mac_id[mvm_link->ap_sta_id], 1331 lockdep_is_held(&mvm->mutex)); 1332 if (IS_ERR_OR_NULL(ap_sta)) { 1333 ret = -EINVAL; 1334 goto out_noreset; 1335 } 1336 1337 ret = iwl_mvm_sta_ensure_queue( 1338 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]); 1339 if (ret) 1340 goto out_noreset; 1341 1342 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1343 vif, mvmvif, ap_sta); 1344 if (ret) 1345 goto out_noreset; 1346 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1347 vif, mvmvif, mvm_link, ap_sta); 1348 if (ret) 1349 goto out; 1350 1351 mvm->net_detect = false; 1352 } 1353 1354 ret = iwl_mvm_power_update_device(mvm); 1355 if (ret) 1356 goto out; 1357 1358 ret = iwl_mvm_power_update_mac(mvm); 1359 if (ret) 1360 goto out; 1361 1362 #ifdef CONFIG_IWLWIFI_DEBUGFS 1363 if (mvm->d3_wake_sysassert) 1364 d3_cfg_cmd_data.wakeup_flags |= 1365 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); 1366 #endif 1367 1368 /* 1369 * Prior to 9000 device family the driver needs to stop the dbg 1370 * recording before entering D3. In later devices the FW stops the 1371 * recording automatically. 1372 */ 1373 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) 1374 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true); 1375 1376 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; 1377 1378 /* must be last -- this switches firmware state */ 1379 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); 1380 if (ret) 1381 goto out; 1382 #ifdef CONFIG_IWLWIFI_DEBUGFS 1383 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); 1384 if (len >= sizeof(u32)) { 1385 mvm->d3_test_pme_ptr = 1386 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); 1387 } 1388 #endif 1389 iwl_free_resp(&d3_cfg_cmd); 1390 1391 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1392 1393 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image); 1394 out: 1395 if (ret < 0) { 1396 iwl_mvm_free_nd(mvm); 1397 1398 if (!unified_image) { 1399 if (mvm->fw_restart > 0) { 1400 mvm->fw_restart--; 1401 ieee80211_restart_hw(mvm->hw); 1402 } 1403 } 1404 1405 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1406 } 1407 out_noreset: 1408 mutex_unlock(&mvm->mutex); 1409 1410 return ret; 1411 } 1412 1413 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) 1414 { 1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1416 1417 iwl_mvm_pause_tcm(mvm, true); 1418 1419 mutex_lock(&mvm->mutex); 1420 iwl_fw_runtime_suspend(&mvm->fwrt); 1421 mutex_unlock(&mvm->mutex); 1422 1423 return __iwl_mvm_suspend(hw, wowlan, false); 1424 } 1425 1426 struct iwl_multicast_key_data { 1427 u8 key[WOWLAN_KEY_MAX_SIZE]; 1428 u8 len; 1429 u8 flags; 1430 u8 id; 1431 u8 ipn[6]; 1432 }; 1433 1434 /* converted data from the different status responses */ 1435 struct iwl_wowlan_status_data { 1436 u64 replay_ctr; 1437 u32 num_of_gtk_rekeys; 1438 u32 received_beacons; 1439 u32 wakeup_reasons; 1440 u32 wake_packet_length; 1441 u32 wake_packet_bufsize; 1442 u16 pattern_number; 1443 u16 non_qos_seq_ctr; 1444 u16 qos_seq_ctr[8]; 1445 u8 tid_tear_down; 1446 u8 tid_offloaded_tx; 1447 1448 struct { 1449 /* including RX MIC key for TKIP */ 1450 u8 key[WOWLAN_KEY_MAX_SIZE]; 1451 u8 len; 1452 u8 flags; 1453 u8 id; 1454 } gtk[WOWLAN_GTK_KEYS_NUM]; 1455 1456 struct { 1457 /* 1458 * We store both the TKIP and AES representations 1459 * coming from the firmware because we decode the 1460 * data from there before we iterate the keys and 1461 * know which one we need. 1462 */ 1463 struct { 1464 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1465 } tkip, aes; 1466 1467 /* 1468 * We use -1 for when we have valid data but don't know 1469 * the key ID from firmware, and thus it needs to be 1470 * installed with the last key (depending on rekeying). 1471 */ 1472 s8 key_id; 1473 bool valid; 1474 } gtk_seq[2]; 1475 1476 struct { 1477 /* Same as above */ 1478 struct { 1479 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1480 u64 tx_pn; 1481 } tkip, aes; 1482 } ptk; 1483 1484 struct iwl_multicast_key_data igtk; 1485 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM]; 1486 1487 int num_mlo_keys; 1488 struct iwl_wowlan_mlo_gtk mlo_keys[WOWLAN_MAX_MLO_KEYS]; 1489 1490 u8 *wake_packet; 1491 }; 1492 1493 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, 1494 struct ieee80211_vif *vif, 1495 struct iwl_wowlan_status_data *status) 1496 { 1497 struct sk_buff *pkt = NULL; 1498 struct cfg80211_wowlan_wakeup wakeup = { 1499 .pattern_idx = -1, 1500 }; 1501 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 1502 u32 reasons = status->wakeup_reasons; 1503 1504 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 1505 wakeup_report = NULL; 1506 goto report; 1507 } 1508 1509 pm_wakeup_event(mvm->dev, 0); 1510 1511 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) 1512 wakeup.magic_pkt = true; 1513 1514 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) 1515 wakeup.pattern_idx = 1516 status->pattern_number; 1517 1518 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 1519 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH | 1520 IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)) 1521 wakeup.disconnect = true; 1522 1523 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) 1524 wakeup.gtk_rekey_failure = true; 1525 1526 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 1527 wakeup.rfkill_release = true; 1528 1529 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) 1530 wakeup.eap_identity_req = true; 1531 1532 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) 1533 wakeup.four_way_handshake = true; 1534 1535 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) 1536 wakeup.tcp_connlost = true; 1537 1538 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) 1539 wakeup.tcp_nomoretokens = true; 1540 1541 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) 1542 wakeup.tcp_match = true; 1543 1544 if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC) 1545 wakeup.unprot_deauth_disassoc = true; 1546 1547 if (status->wake_packet) { 1548 int pktsize = status->wake_packet_bufsize; 1549 int pktlen = status->wake_packet_length; 1550 const u8 *pktdata = status->wake_packet; 1551 const struct ieee80211_hdr *hdr = (const void *)pktdata; 1552 int truncated = pktlen - pktsize; 1553 1554 /* this would be a firmware bug */ 1555 if (WARN_ON_ONCE(truncated < 0)) 1556 truncated = 0; 1557 1558 if (ieee80211_is_data(hdr->frame_control)) { 1559 int hdrlen = ieee80211_hdrlen(hdr->frame_control); 1560 int ivlen = 0, icvlen = 4; /* also FCS */ 1561 1562 pkt = alloc_skb(pktsize, GFP_KERNEL); 1563 if (!pkt) 1564 goto report; 1565 1566 skb_put_data(pkt, pktdata, hdrlen); 1567 pktdata += hdrlen; 1568 pktsize -= hdrlen; 1569 1570 if (ieee80211_has_protected(hdr->frame_control)) { 1571 /* 1572 * This is unlocked and using gtk_i(c)vlen, 1573 * but since everything is under RTNL still 1574 * that's not really a problem - changing 1575 * it would be difficult. 1576 */ 1577 if (is_multicast_ether_addr(hdr->addr1)) { 1578 ivlen = mvm->gtk_ivlen; 1579 icvlen += mvm->gtk_icvlen; 1580 } else { 1581 ivlen = mvm->ptk_ivlen; 1582 icvlen += mvm->ptk_icvlen; 1583 } 1584 } 1585 1586 /* if truncated, FCS/ICV is (partially) gone */ 1587 if (truncated >= icvlen) { 1588 icvlen = 0; 1589 truncated -= icvlen; 1590 } else { 1591 icvlen -= truncated; 1592 truncated = 0; 1593 } 1594 1595 pktsize -= ivlen + icvlen; 1596 pktdata += ivlen; 1597 1598 skb_put_data(pkt, pktdata, pktsize); 1599 1600 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) 1601 goto report; 1602 wakeup.packet = pkt->data; 1603 wakeup.packet_present_len = pkt->len; 1604 wakeup.packet_len = pkt->len - truncated; 1605 wakeup.packet_80211 = false; 1606 } else { 1607 int fcslen = 4; 1608 1609 if (truncated >= 4) { 1610 truncated -= 4; 1611 fcslen = 0; 1612 } else { 1613 fcslen -= truncated; 1614 truncated = 0; 1615 } 1616 pktsize -= fcslen; 1617 wakeup.packet = status->wake_packet; 1618 wakeup.packet_present_len = pktsize; 1619 wakeup.packet_len = pktlen - truncated; 1620 wakeup.packet_80211 = true; 1621 } 1622 } 1623 1624 report: 1625 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 1626 kfree_skb(pkt); 1627 } 1628 1629 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1630 { 1631 u64 pn = le64_to_cpu(le_pn); 1632 1633 seq->ccmp.pn[0] = pn >> 40; 1634 seq->ccmp.pn[1] = pn >> 32; 1635 seq->ccmp.pn[2] = pn >> 24; 1636 seq->ccmp.pn[3] = pn >> 16; 1637 seq->ccmp.pn[4] = pn >> 8; 1638 seq->ccmp.pn[5] = pn; 1639 } 1640 1641 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, 1642 struct ieee80211_key_seq *seq) 1643 { 1644 iwl_mvm_le64_to_aes_seq(sc->pn, seq); 1645 } 1646 1647 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1648 { 1649 u64 pn = le64_to_cpu(le_pn); 1650 1651 seq->tkip.iv16 = (u16)pn; 1652 seq->tkip.iv32 = (u32)(pn >> 16); 1653 } 1654 1655 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, 1656 struct ieee80211_key_seq *seq) 1657 { 1658 seq->tkip.iv32 = le32_to_cpu(sc->iv32); 1659 seq->tkip.iv16 = le16_to_cpu(sc->iv16); 1660 } 1661 1662 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key, 1663 struct ieee80211_key_seq *seq) 1664 { 1665 int tid; 1666 1667 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) 1668 ieee80211_set_key_rx_seq(key, tid, &seq[tid]); 1669 } 1670 1671 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm, 1672 struct iwl_wowlan_status_data *status, 1673 struct ieee80211_sta *sta, 1674 struct ieee80211_key_conf *key) 1675 { 1676 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1677 struct iwl_mvm_key_pn *ptk_pn; 1678 int tid; 1679 1680 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq); 1681 1682 if (!iwl_mvm_has_new_rx_api(mvm)) 1683 return; 1684 1685 1686 rcu_read_lock(); 1687 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 1688 if (WARN_ON(!ptk_pn)) { 1689 rcu_read_unlock(); 1690 return; 1691 } 1692 1693 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1694 int i; 1695 1696 for (i = 1; i < mvm->trans->num_rx_queues; i++) 1697 memcpy(ptk_pn->q[i].pn[tid], 1698 status->ptk.aes.seq[tid].ccmp.pn, 1699 IEEE80211_CCMP_PN_LEN); 1700 } 1701 rcu_read_unlock(); 1702 } 1703 1704 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status, 1705 union iwl_all_tsc_rsc *sc) 1706 { 1707 int i; 1708 1709 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1710 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1711 1712 /* GTK RX counters */ 1713 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1714 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i], 1715 &status->gtk_seq[0].tkip.seq[i]); 1716 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i], 1717 &status->gtk_seq[0].aes.seq[i]); 1718 } 1719 status->gtk_seq[0].valid = true; 1720 status->gtk_seq[0].key_id = -1; 1721 1722 /* PTK TX counter */ 1723 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) | 1724 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16); 1725 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn); 1726 1727 /* PTK RX counters */ 1728 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1729 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i], 1730 &status->ptk.tkip.seq[i]); 1731 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i], 1732 &status->ptk.aes.seq[i]); 1733 } 1734 } 1735 1736 static void 1737 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status, 1738 struct iwl_wowlan_all_rsc_tsc_v5 *sc, 1739 unsigned int idx, unsigned int key_id) 1740 { 1741 int tid; 1742 1743 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1744 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid], 1745 &status->gtk_seq[idx].tkip.seq[tid]); 1746 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid], 1747 &status->gtk_seq[idx].aes.seq[tid]); 1748 } 1749 1750 status->gtk_seq[idx].valid = true; 1751 status->gtk_seq[idx].key_id = key_id; 1752 } 1753 1754 static void 1755 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status, 1756 struct iwl_wowlan_all_rsc_tsc_v5 *sc) 1757 { 1758 int i, tid; 1759 1760 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1761 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1762 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq)); 1763 1764 /* GTK RX counters */ 1765 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) { 1766 u8 entry = sc->mcast_key_id_map[i]; 1767 1768 if (entry < ARRAY_SIZE(sc->mcast_rsc)) 1769 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc, 1770 entry, i); 1771 } 1772 1773 /* PTK TX counters not needed, assigned in device */ 1774 1775 /* PTK RX counters */ 1776 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1777 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid], 1778 &status->ptk.tkip.seq[tid]); 1779 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid], 1780 &status->ptk.aes.seq[tid]); 1781 } 1782 } 1783 1784 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key, 1785 struct iwl_wowlan_status_data *status, 1786 int idx) 1787 { 1788 switch (key->cipher) { 1789 case WLAN_CIPHER_SUITE_CCMP: 1790 case WLAN_CIPHER_SUITE_GCMP: 1791 case WLAN_CIPHER_SUITE_GCMP_256: 1792 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq); 1793 break; 1794 case WLAN_CIPHER_SUITE_TKIP: 1795 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq); 1796 break; 1797 default: 1798 WARN_ON(1); 1799 } 1800 } 1801 1802 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, 1803 struct iwl_wowlan_status_data *status, 1804 bool installed) 1805 { 1806 int i; 1807 1808 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) { 1809 if (!status->gtk_seq[i].valid) 1810 continue; 1811 1812 /* Handle the case where we know the key ID */ 1813 if (status->gtk_seq[i].key_id == key->keyidx) { 1814 s8 new_key_id = -1; 1815 1816 if (status->num_of_gtk_rekeys) 1817 new_key_id = status->gtk[0].flags & 1818 IWL_WOWLAN_GTK_IDX_MASK; 1819 1820 /* Don't install a new key's value to an old key */ 1821 if (new_key_id != key->keyidx) 1822 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1823 continue; 1824 } 1825 1826 /* handle the case where we didn't, last key only */ 1827 if (status->gtk_seq[i].key_id == -1 && 1828 (!status->num_of_gtk_rekeys || installed)) 1829 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1830 } 1831 } 1832 1833 struct iwl_mvm_d3_gtk_iter_data { 1834 struct iwl_mvm *mvm; 1835 struct iwl_wowlan_status_data *status; 1836 u32 gtk_cipher, igtk_cipher, bigtk_cipher; 1837 bool unhandled_cipher, igtk_support, bigtk_support; 1838 int num_keys; 1839 }; 1840 1841 static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw, 1842 struct ieee80211_vif *vif, 1843 struct ieee80211_sta *sta, 1844 struct ieee80211_key_conf *key, 1845 void *_data) 1846 { 1847 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1848 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1849 1850 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id) 1851 return; 1852 1853 if (data->unhandled_cipher) 1854 return; 1855 1856 switch (key->cipher) { 1857 case WLAN_CIPHER_SUITE_WEP40: 1858 case WLAN_CIPHER_SUITE_WEP104: 1859 /* ignore WEP completely, nothing to do */ 1860 return; 1861 case WLAN_CIPHER_SUITE_CCMP: 1862 case WLAN_CIPHER_SUITE_GCMP: 1863 case WLAN_CIPHER_SUITE_GCMP_256: 1864 case WLAN_CIPHER_SUITE_TKIP: 1865 /* we support these */ 1866 data->gtk_cipher = key->cipher; 1867 break; 1868 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1869 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1870 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1871 case WLAN_CIPHER_SUITE_AES_CMAC: 1872 /* we support these */ 1873 if (data->igtk_support && 1874 (key->keyidx == 4 || key->keyidx == 5)) { 1875 data->igtk_cipher = key->cipher; 1876 } else if (data->bigtk_support && 1877 (key->keyidx == 6 || key->keyidx == 7)) { 1878 data->bigtk_cipher = key->cipher; 1879 } else { 1880 data->unhandled_cipher = true; 1881 return; 1882 } 1883 break; 1884 default: 1885 /* everything else - disconnect from AP */ 1886 data->unhandled_cipher = true; 1887 return; 1888 } 1889 1890 data->num_keys++; 1891 } 1892 1893 static void 1894 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key, 1895 struct ieee80211_key_seq *seq, u32 cipher) 1896 { 1897 switch (cipher) { 1898 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1899 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1900 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn)); 1901 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn)); 1902 break; 1903 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1904 case WLAN_CIPHER_SUITE_AES_CMAC: 1905 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn)); 1906 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn)); 1907 break; 1908 default: 1909 WARN_ON(1); 1910 } 1911 } 1912 1913 static void 1914 iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status, 1915 struct ieee80211_key_conf *key, 1916 struct iwl_multicast_key_data *key_data) 1917 { 1918 if (status->num_of_gtk_rekeys && key_data->len) { 1919 /* remove rekeyed key */ 1920 ieee80211_remove_key(key); 1921 } else { 1922 struct ieee80211_key_seq seq; 1923 1924 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, 1925 &seq, 1926 key->cipher); 1927 ieee80211_set_key_rx_seq(key, 0, &seq); 1928 } 1929 } 1930 1931 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, 1932 struct ieee80211_vif *vif, 1933 struct ieee80211_sta *sta, 1934 struct ieee80211_key_conf *key, 1935 void *_data) 1936 { 1937 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1938 struct iwl_wowlan_status_data *status = data->status; 1939 s8 keyidx; 1940 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1941 1942 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id) 1943 return; 1944 1945 if (data->unhandled_cipher) 1946 return; 1947 1948 switch (key->cipher) { 1949 case WLAN_CIPHER_SUITE_WEP40: 1950 case WLAN_CIPHER_SUITE_WEP104: 1951 /* ignore WEP completely, nothing to do */ 1952 return; 1953 case WLAN_CIPHER_SUITE_CCMP: 1954 case WLAN_CIPHER_SUITE_GCMP: 1955 case WLAN_CIPHER_SUITE_GCMP_256: 1956 if (sta) { 1957 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn); 1958 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key); 1959 return; 1960 } 1961 fallthrough; 1962 case WLAN_CIPHER_SUITE_TKIP: 1963 if (sta) { 1964 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn); 1965 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq); 1966 return; 1967 } 1968 keyidx = key->keyidx; 1969 /* The current key is always sent by the FW, even if it wasn't 1970 * rekeyed during D3. 1971 * We remove an existing key if it has the same index as 1972 * a new key 1973 */ 1974 if (status->num_of_gtk_rekeys && 1975 ((status->gtk[0].len && keyidx == status->gtk[0].id) || 1976 (status->gtk[1].len && keyidx == status->gtk[1].id))) { 1977 ieee80211_remove_key(key); 1978 } else { 1979 iwl_mvm_set_key_rx_seq(key, data->status, false); 1980 } 1981 break; 1982 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1983 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1984 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1985 case WLAN_CIPHER_SUITE_AES_CMAC: 1986 if (key->keyidx == 4 || key->keyidx == 5) { 1987 iwl_mvm_d3_update_igtk_bigtk(status, key, 1988 &status->igtk); 1989 } 1990 if (key->keyidx == 6 || key->keyidx == 7) { 1991 u8 idx = key->keyidx == status->bigtk[1].id; 1992 1993 iwl_mvm_d3_update_igtk_bigtk(status, key, 1994 &status->bigtk[idx]); 1995 } 1996 } 1997 } 1998 1999 struct iwl_mvm_d3_mlo_old_keys { 2000 u32 cipher[IEEE80211_MLD_MAX_NUM_LINKS][WOWLAN_MLO_GTK_KEY_NUM_TYPES]; 2001 struct ieee80211_key_conf *key[IEEE80211_MLD_MAX_NUM_LINKS][8]; 2002 }; 2003 2004 static void iwl_mvm_mlo_key_ciphers(struct ieee80211_hw *hw, 2005 struct ieee80211_vif *vif, 2006 struct ieee80211_sta *sta, 2007 struct ieee80211_key_conf *key, 2008 void *data) 2009 { 2010 struct iwl_mvm_d3_mlo_old_keys *old_keys = data; 2011 enum iwl_wowlan_mlo_gtk_type key_type; 2012 2013 if (key->link_id < 0) 2014 return; 2015 2016 if (WARN_ON(key->link_id >= IEEE80211_MLD_MAX_NUM_LINKS || 2017 key->keyidx >= 8)) 2018 return; 2019 2020 if (WARN_ON(old_keys->key[key->link_id][key->keyidx])) 2021 return; 2022 2023 switch (key->cipher) { 2024 case WLAN_CIPHER_SUITE_CCMP: 2025 case WLAN_CIPHER_SUITE_GCMP: 2026 case WLAN_CIPHER_SUITE_GCMP_256: 2027 key_type = WOWLAN_MLO_GTK_KEY_TYPE_GTK; 2028 break; 2029 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 2030 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 2031 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 2032 case WLAN_CIPHER_SUITE_AES_CMAC: 2033 if (key->keyidx == 4 || key->keyidx == 5) { 2034 key_type = WOWLAN_MLO_GTK_KEY_TYPE_IGTK; 2035 break; 2036 } else if (key->keyidx == 6 || key->keyidx == 7) { 2037 key_type = WOWLAN_MLO_GTK_KEY_TYPE_BIGTK; 2038 break; 2039 } 2040 return; 2041 default: 2042 /* ignore WEP/TKIP or unknown ciphers */ 2043 return; 2044 } 2045 2046 old_keys->cipher[key->link_id][key_type] = key->cipher; 2047 old_keys->key[key->link_id][key->keyidx] = key; 2048 } 2049 2050 static bool iwl_mvm_mlo_gtk_rekey(struct iwl_wowlan_status_data *status, 2051 struct ieee80211_vif *vif, 2052 struct iwl_mvm *mvm) 2053 { 2054 int i; 2055 struct iwl_mvm_d3_mlo_old_keys *old_keys; 2056 bool ret = true; 2057 2058 IWL_DEBUG_WOWLAN(mvm, "Num of MLO Keys: %d\n", status->num_mlo_keys); 2059 if (!status->num_mlo_keys) 2060 return true; 2061 2062 old_keys = kzalloc(sizeof(*old_keys), GFP_KERNEL); 2063 if (!old_keys) 2064 return false; 2065 2066 /* find the cipher for each mlo key */ 2067 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_mlo_key_ciphers, old_keys); 2068 2069 for (i = 0; i < status->num_mlo_keys; i++) { 2070 struct iwl_wowlan_mlo_gtk *mlo_key = &status->mlo_keys[i]; 2071 struct ieee80211_key_conf *key, *old_key; 2072 struct ieee80211_key_seq seq; 2073 struct { 2074 struct ieee80211_key_conf conf; 2075 u8 key[32]; 2076 } conf = {}; 2077 u16 flags = le16_to_cpu(mlo_key->flags); 2078 int j, link_id, key_id, key_type; 2079 2080 link_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_LINK_ID_MSK); 2081 key_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_KEY_ID_MSK); 2082 key_type = u16_get_bits(flags, 2083 WOWLAN_MLO_GTK_FLAG_KEY_TYPE_MSK); 2084 2085 if (!(vif->valid_links & BIT(link_id))) 2086 continue; 2087 2088 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS || 2089 key_id >= 8 || 2090 key_type >= WOWLAN_MLO_GTK_KEY_NUM_TYPES)) 2091 continue; 2092 2093 conf.conf.cipher = old_keys->cipher[link_id][key_type]; 2094 /* WARN_ON? */ 2095 if (!conf.conf.cipher) 2096 continue; 2097 2098 conf.conf.keylen = 0; 2099 switch (conf.conf.cipher) { 2100 case WLAN_CIPHER_SUITE_CCMP: 2101 case WLAN_CIPHER_SUITE_GCMP: 2102 conf.conf.keylen = WLAN_KEY_LEN_CCMP; 2103 break; 2104 case WLAN_CIPHER_SUITE_GCMP_256: 2105 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256; 2106 break; 2107 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 2108 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128; 2109 break; 2110 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 2111 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256; 2112 break; 2113 case WLAN_CIPHER_SUITE_AES_CMAC: 2114 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC; 2115 break; 2116 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 2117 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256; 2118 break; 2119 } 2120 2121 if (WARN_ON(!conf.conf.keylen || 2122 conf.conf.keylen > sizeof(conf.key))) 2123 continue; 2124 2125 memcpy(conf.conf.key, mlo_key->key, conf.conf.keylen); 2126 conf.conf.keyidx = key_id; 2127 2128 old_key = old_keys->key[link_id][key_id]; 2129 if (old_key) { 2130 IWL_DEBUG_WOWLAN(mvm, 2131 "Remove MLO key id %d, link id %d\n", 2132 key_id, link_id); 2133 ieee80211_remove_key(old_key); 2134 } 2135 2136 IWL_DEBUG_WOWLAN(mvm, "Add MLO key id %d, link id %d\n", 2137 key_id, link_id); 2138 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id); 2139 if (WARN_ON(IS_ERR(key))) { 2140 ret = false; 2141 goto out; 2142 } 2143 2144 /* 2145 * mac80211 expects the pn in big-endian 2146 * also note that seq is a union of all cipher types 2147 * (ccmp, gcmp, cmac, gmac), and they all have the same 2148 * pn field (of length 6) so just copy it to ccmp.pn. 2149 */ 2150 for (j = 5; j >= 0; j--) 2151 seq.ccmp.pn[5 - j] = mlo_key->pn[j]; 2152 2153 /* group keys are non-QoS and use TID 0 */ 2154 ieee80211_set_key_rx_seq(key, 0, &seq); 2155 } 2156 2157 out: 2158 kfree(old_keys); 2159 return ret; 2160 } 2161 2162 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status, 2163 struct ieee80211_vif *vif, 2164 struct iwl_mvm *mvm, u32 gtk_cipher) 2165 { 2166 int i, j; 2167 struct ieee80211_key_conf *key; 2168 struct { 2169 struct ieee80211_key_conf conf; 2170 u8 key[32]; 2171 } conf = { 2172 .conf.cipher = gtk_cipher, 2173 }; 2174 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 2175 2176 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP); 2177 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP); 2178 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256); 2179 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP); 2180 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key)); 2181 2182 switch (gtk_cipher) { 2183 case WLAN_CIPHER_SUITE_CCMP: 2184 case WLAN_CIPHER_SUITE_GCMP: 2185 conf.conf.keylen = WLAN_KEY_LEN_CCMP; 2186 break; 2187 case WLAN_CIPHER_SUITE_GCMP_256: 2188 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256; 2189 break; 2190 case WLAN_CIPHER_SUITE_TKIP: 2191 conf.conf.keylen = WLAN_KEY_LEN_TKIP; 2192 break; 2193 default: 2194 WARN_ON(1); 2195 } 2196 2197 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) { 2198 if (!status->gtk[i].len) 2199 continue; 2200 2201 conf.conf.keyidx = status->gtk[i].id; 2202 IWL_DEBUG_WOWLAN(mvm, 2203 "Received from FW GTK cipher %d, key index %d\n", 2204 conf.conf.cipher, conf.conf.keyidx); 2205 memcpy(conf.conf.key, status->gtk[i].key, 2206 sizeof(status->gtk[i].key)); 2207 2208 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id); 2209 if (IS_ERR(key)) 2210 return false; 2211 2212 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) { 2213 if (!status->gtk_seq[j].valid || 2214 status->gtk_seq[j].key_id != key->keyidx) 2215 continue; 2216 iwl_mvm_set_key_rx_seq_idx(key, status, j); 2217 break; 2218 } 2219 WARN_ON(j == ARRAY_SIZE(status->gtk_seq)); 2220 } 2221 2222 return true; 2223 } 2224 2225 static bool 2226 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status, 2227 struct ieee80211_vif *vif, u32 cipher, 2228 struct iwl_multicast_key_data *key_data) 2229 { 2230 struct ieee80211_key_conf *key_config; 2231 struct { 2232 struct ieee80211_key_conf conf; 2233 u8 key[WOWLAN_KEY_MAX_SIZE]; 2234 } conf = { 2235 .conf.cipher = cipher, 2236 .conf.keyidx = key_data->id, 2237 }; 2238 struct ieee80211_key_seq seq; 2239 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 2240 2241 if (!key_data->len) 2242 return true; 2243 2244 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher); 2245 2246 switch (cipher) { 2247 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 2248 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128; 2249 break; 2250 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 2251 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256; 2252 break; 2253 case WLAN_CIPHER_SUITE_AES_CMAC: 2254 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC; 2255 break; 2256 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 2257 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256; 2258 break; 2259 default: 2260 WARN_ON(1); 2261 } 2262 BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key)); 2263 memcpy(conf.conf.key, key_data->key, conf.conf.keylen); 2264 2265 key_config = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id); 2266 if (IS_ERR(key_config)) 2267 return false; 2268 ieee80211_set_key_rx_seq(key_config, 0, &seq); 2269 2270 if (key_config->keyidx == 4 || key_config->keyidx == 5) { 2271 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2272 struct iwl_mvm_vif_link_info *mvm_link; 2273 2274 link_id = link_id < 0 ? 0 : link_id; 2275 mvm_link = mvmvif->link[link_id]; 2276 mvm_link->igtk = key_config; 2277 } 2278 2279 return true; 2280 } 2281 2282 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm) 2283 { 2284 u8 notif_ver; 2285 2286 if (!fw_has_api(&mvm->fw->ucode_capa, 2287 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) 2288 return 6; 2289 2290 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2291 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2292 WOWLAN_GET_STATUSES, 0); 2293 if (!notif_ver) 2294 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 2295 WOWLAN_GET_STATUSES, 7); 2296 2297 return notif_ver; 2298 } 2299 2300 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, 2301 struct ieee80211_vif *vif, 2302 struct iwl_wowlan_status_data *status) 2303 { 2304 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2305 struct iwl_mvm_d3_gtk_iter_data gtkdata = { 2306 .mvm = mvm, 2307 .status = status, 2308 }; 2309 int i; 2310 u32 disconnection_reasons = 2311 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 2312 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; 2313 2314 if (!status || !vif->bss_conf.bssid) 2315 return false; 2316 2317 if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 || 2318 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2319 WOWLAN_INFO_NOTIFICATION, 2320 0)) 2321 gtkdata.igtk_support = true; 2322 2323 if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2324 WOWLAN_INFO_NOTIFICATION, 2325 0) >= 3) 2326 gtkdata.bigtk_support = true; 2327 2328 /* find last GTK that we used initially, if any */ 2329 ieee80211_iter_keys(mvm->hw, vif, 2330 iwl_mvm_d3_find_last_keys, >kdata); 2331 /* not trying to keep connections with MFP/unhandled ciphers */ 2332 if (gtkdata.unhandled_cipher) 2333 return false; 2334 if (!gtkdata.num_keys) 2335 goto out; 2336 2337 /* 2338 * invalidate all other GTKs that might still exist and update 2339 * the one that we used 2340 */ 2341 ieee80211_iter_keys(mvm->hw, vif, 2342 iwl_mvm_d3_update_keys, >kdata); 2343 2344 if (status->num_of_gtk_rekeys) { 2345 __be64 replay_ctr = cpu_to_be64(status->replay_ctr); 2346 2347 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n", 2348 status->num_of_gtk_rekeys); 2349 2350 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher)) 2351 return false; 2352 2353 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2354 gtkdata.igtk_cipher, 2355 &status->igtk)) 2356 return false; 2357 2358 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) { 2359 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2360 gtkdata.bigtk_cipher, 2361 &status->bigtk[i])) 2362 return false; 2363 } 2364 2365 if (!iwl_mvm_mlo_gtk_rekey(status, vif, mvm)) 2366 return false; 2367 2368 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, 2369 (void *)&replay_ctr, GFP_KERNEL); 2370 } 2371 2372 out: 2373 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2374 WOWLAN_GET_STATUSES, 2375 IWL_FW_CMD_VER_UNKNOWN) < 10) { 2376 mvmvif->seqno_valid = true; 2377 /* +0x10 because the set API expects next-to-use, not last-used */ 2378 mvmvif->seqno = status->non_qos_seq_ctr + 0x10; 2379 } 2380 2381 if (status->wakeup_reasons & disconnection_reasons) 2382 return false; 2383 2384 return true; 2385 } 2386 2387 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, 2388 struct iwl_wowlan_gtk_status_v2 *data) 2389 { 2390 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key)); 2391 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2392 sizeof(data->tkip_mic_key) > 2393 sizeof(status->gtk[0].key)); 2394 2395 status->gtk[0].len = data->key_len; 2396 status->gtk[0].flags = data->key_flags; 2397 2398 memcpy(status->gtk[0].key, data->key, sizeof(data->key)); 2399 2400 /* if it's as long as the TKIP encryption key, copy MIC key */ 2401 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2402 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2403 data->tkip_mic_key, sizeof(data->tkip_mic_key)); 2404 } 2405 2406 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, 2407 struct iwl_wowlan_gtk_status_v3 *data) 2408 { 2409 int data_idx, status_idx = 0; 2410 2411 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key)); 2412 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2413 sizeof(data[0].tkip_mic_key) > 2414 sizeof(status->gtk[0].key)); 2415 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM); 2416 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) { 2417 if (!(data[data_idx].key_len)) 2418 continue; 2419 status->gtk[status_idx].len = data[data_idx].key_len; 2420 status->gtk[status_idx].flags = data[data_idx].key_flags; 2421 status->gtk[status_idx].id = status->gtk[status_idx].flags & 2422 IWL_WOWLAN_GTK_IDX_MASK; 2423 2424 memcpy(status->gtk[status_idx].key, data[data_idx].key, 2425 sizeof(data[data_idx].key)); 2426 2427 /* if it's as long as the TKIP encryption key, copy MIC key */ 2428 if (status->gtk[status_idx].len == 2429 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2430 memcpy(status->gtk[status_idx].key + 2431 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2432 data[data_idx].tkip_mic_key, 2433 sizeof(data[data_idx].tkip_mic_key)); 2434 status_idx++; 2435 } 2436 } 2437 2438 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, 2439 struct iwl_wowlan_igtk_status *data) 2440 { 2441 int i; 2442 2443 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); 2444 BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn)); 2445 2446 if (!data->key_len) 2447 return; 2448 2449 status->igtk.len = data->key_len; 2450 status->igtk.flags = data->key_flags; 2451 status->igtk.id = u32_get_bits(data->key_flags, 2452 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2453 + WOWLAN_IGTK_MIN_INDEX; 2454 2455 memcpy(status->igtk.key, data->key, sizeof(data->key)); 2456 2457 /* mac80211 expects big endian for memcmp() to work, convert */ 2458 for (i = 0; i < sizeof(data->ipn); i++) 2459 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1]; 2460 } 2461 2462 static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status, 2463 const struct iwl_wowlan_igtk_status *data) 2464 { 2465 int data_idx, status_idx = 0; 2466 2467 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM); 2468 2469 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) { 2470 if (!data[data_idx].key_len) 2471 continue; 2472 2473 status->bigtk[status_idx].len = data[data_idx].key_len; 2474 status->bigtk[status_idx].flags = data[data_idx].key_flags; 2475 status->bigtk[status_idx].id = 2476 u32_get_bits(data[data_idx].key_flags, 2477 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2478 + WOWLAN_BIGTK_MIN_INDEX; 2479 2480 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) < 2481 sizeof(data[data_idx].key)); 2482 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) < 2483 sizeof(data[data_idx].ipn)); 2484 2485 memcpy(status->bigtk[status_idx].key, data[data_idx].key, 2486 sizeof(data[data_idx].key)); 2487 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn, 2488 sizeof(data[data_idx].ipn)); 2489 status_idx++; 2490 } 2491 } 2492 2493 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, 2494 struct iwl_wowlan_info_notif *data, 2495 struct iwl_wowlan_status_data *status, 2496 u32 len) 2497 { 2498 u32 expected_len = sizeof(*data) + 2499 data->num_mlo_link_keys * sizeof(status->mlo_keys[0]); 2500 2501 if (!data) { 2502 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); 2503 status = NULL; 2504 return; 2505 } 2506 2507 if (len < expected_len) { 2508 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2509 status = NULL; 2510 return; 2511 } 2512 2513 if (mvm->fast_resume) 2514 return; 2515 2516 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2517 iwl_mvm_convert_gtk_v3(status, data->gtk); 2518 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2519 iwl_mvm_convert_bigtk(status, data->bigtk); 2520 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2521 status->pattern_number = le16_to_cpu(data->pattern_number); 2522 status->tid_offloaded_tx = data->tid_offloaded_tx; 2523 if (IWL_FW_CHECK(mvm, 2524 data->tid_offloaded_tx >= 2525 ARRAY_SIZE(status->qos_seq_ctr), 2526 "tid_offloaded_tx is out of bound %d\n", 2527 data->tid_offloaded_tx)) 2528 data->tid_offloaded_tx = 0; 2529 status->qos_seq_ctr[data->tid_offloaded_tx] = 2530 le16_to_cpu(data->qos_seq_ctr); 2531 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2532 status->num_of_gtk_rekeys = 2533 le32_to_cpu(data->num_of_gtk_rekeys); 2534 status->received_beacons = le32_to_cpu(data->received_beacons); 2535 status->tid_tear_down = data->tid_tear_down; 2536 2537 if (data->num_mlo_link_keys) { 2538 status->num_mlo_keys = data->num_mlo_link_keys; 2539 if (IWL_FW_CHECK(mvm, 2540 status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS, 2541 "Too many mlo keys: %d, max %d\n", 2542 status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS)) 2543 status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS; 2544 memcpy(status->mlo_keys, data->mlo_gtks, 2545 status->num_mlo_keys * sizeof(status->mlo_keys[0])); 2546 } 2547 } 2548 2549 static void 2550 iwl_mvm_parse_wowlan_info_notif_v4(struct iwl_mvm *mvm, 2551 struct iwl_wowlan_info_notif_v4 *data, 2552 struct iwl_wowlan_status_data *status, 2553 u32 len, bool has_mlo_keys) 2554 { 2555 u32 i; 2556 u32 expected_len = sizeof(*data); 2557 2558 if (!data) { 2559 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); 2560 status = NULL; 2561 return; 2562 } 2563 2564 if (has_mlo_keys) 2565 expected_len += (data->num_mlo_link_keys * 2566 sizeof(status->mlo_keys[0])); 2567 2568 if (len < expected_len) { 2569 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2570 status = NULL; 2571 return; 2572 } 2573 2574 if (mvm->fast_resume) 2575 return; 2576 2577 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2578 iwl_mvm_convert_gtk_v3(status, data->gtk); 2579 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2580 iwl_mvm_convert_bigtk(status, data->bigtk); 2581 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2582 status->pattern_number = le16_to_cpu(data->pattern_number); 2583 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2584 status->qos_seq_ctr[i] = 2585 le16_to_cpu(data->qos_seq_ctr[i]); 2586 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2587 status->num_of_gtk_rekeys = 2588 le32_to_cpu(data->num_of_gtk_rekeys); 2589 status->received_beacons = le32_to_cpu(data->received_beacons); 2590 status->tid_tear_down = data->tid_tear_down; 2591 2592 if (has_mlo_keys && data->num_mlo_link_keys) { 2593 status->num_mlo_keys = data->num_mlo_link_keys; 2594 if (IWL_FW_CHECK(mvm, 2595 status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS, 2596 "Too many mlo keys: %d, max %d\n", 2597 status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS)) 2598 status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS; 2599 memcpy(status->mlo_keys, data->mlo_gtks, 2600 status->num_mlo_keys * sizeof(status->mlo_keys[0])); 2601 } 2602 } 2603 2604 static void 2605 iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm, 2606 struct iwl_wowlan_info_notif_v2 *data, 2607 struct iwl_wowlan_status_data *status, 2608 u32 len) 2609 { 2610 u32 i; 2611 2612 if (!data) { 2613 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); 2614 status = NULL; 2615 return; 2616 } 2617 2618 if (len < sizeof(*data)) { 2619 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2620 status = NULL; 2621 return; 2622 } 2623 2624 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2625 iwl_mvm_convert_gtk_v3(status, data->gtk); 2626 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2627 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2628 status->pattern_number = le16_to_cpu(data->pattern_number); 2629 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2630 status->qos_seq_ctr[i] = 2631 le16_to_cpu(data->qos_seq_ctr[i]); 2632 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2633 status->num_of_gtk_rekeys = 2634 le32_to_cpu(data->num_of_gtk_rekeys); 2635 status->received_beacons = le32_to_cpu(data->received_beacons); 2636 status->tid_tear_down = data->tid_tear_down; 2637 } 2638 2639 /* Occasionally, templates would be nice. This is one of those times ... */ 2640 #define iwl_mvm_parse_wowlan_status_common(_ver) \ 2641 static struct iwl_wowlan_status_data * \ 2642 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \ 2643 struct iwl_wowlan_status_ ##_ver *data,\ 2644 int len) \ 2645 { \ 2646 struct iwl_wowlan_status_data *status; \ 2647 int data_size, i; \ 2648 \ 2649 if (len < sizeof(*data)) { \ 2650 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2651 return NULL; \ 2652 } \ 2653 \ 2654 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \ 2655 if (len != sizeof(*data) + data_size) { \ 2656 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2657 return NULL; \ 2658 } \ 2659 \ 2660 status = kzalloc(sizeof(*status), GFP_KERNEL); \ 2661 if (!status) \ 2662 return NULL; \ 2663 \ 2664 /* copy all the common fields */ \ 2665 status->replay_ctr = le64_to_cpu(data->replay_ctr); \ 2666 status->pattern_number = le16_to_cpu(data->pattern_number); \ 2667 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \ 2668 for (i = 0; i < 8; i++) \ 2669 status->qos_seq_ctr[i] = \ 2670 le16_to_cpu(data->qos_seq_ctr[i]); \ 2671 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \ 2672 status->num_of_gtk_rekeys = \ 2673 le32_to_cpu(data->num_of_gtk_rekeys); \ 2674 status->received_beacons = le32_to_cpu(data->received_beacons); \ 2675 status->wake_packet_length = \ 2676 le32_to_cpu(data->wake_packet_length); \ 2677 status->wake_packet_bufsize = \ 2678 le32_to_cpu(data->wake_packet_bufsize); \ 2679 if (status->wake_packet_bufsize) { \ 2680 status->wake_packet = \ 2681 kmemdup(data->wake_packet, \ 2682 status->wake_packet_bufsize, \ 2683 GFP_KERNEL); \ 2684 if (!status->wake_packet) { \ 2685 kfree(status); \ 2686 return NULL; \ 2687 } \ 2688 } else { \ 2689 status->wake_packet = NULL; \ 2690 } \ 2691 \ 2692 return status; \ 2693 } 2694 2695 iwl_mvm_parse_wowlan_status_common(v6) 2696 iwl_mvm_parse_wowlan_status_common(v7) 2697 iwl_mvm_parse_wowlan_status_common(v9) 2698 iwl_mvm_parse_wowlan_status_common(v12) 2699 2700 static struct iwl_wowlan_status_data * 2701 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id) 2702 { 2703 struct iwl_wowlan_status_data *status; 2704 struct iwl_wowlan_get_status_cmd get_status_cmd = { 2705 .sta_id = cpu_to_le32(sta_id), 2706 }; 2707 struct iwl_host_cmd cmd = { 2708 .id = WOWLAN_GET_STATUSES, 2709 .flags = CMD_WANT_SKB, 2710 .data = { &get_status_cmd, }, 2711 .len = { sizeof(get_status_cmd), }, 2712 }; 2713 int ret, len; 2714 u8 notif_ver; 2715 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 2716 IWL_FW_CMD_VER_UNKNOWN); 2717 2718 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN) 2719 cmd.len[0] = 0; 2720 2721 lockdep_assert_held(&mvm->mutex); 2722 2723 ret = iwl_mvm_send_cmd(mvm, &cmd); 2724 if (ret) { 2725 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret); 2726 return ERR_PTR(ret); 2727 } 2728 2729 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2730 2731 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2732 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm); 2733 2734 if (notif_ver < 7) { 2735 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data; 2736 2737 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len); 2738 if (!status) 2739 goto out_free_resp; 2740 2741 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) > 2742 sizeof(status->gtk[0].key)); 2743 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2744 sizeof(v6->gtk.tkip_mic_key) > 2745 sizeof(status->gtk[0].key)); 2746 2747 /* copy GTK info to the right place */ 2748 memcpy(status->gtk[0].key, v6->gtk.decrypt_key, 2749 sizeof(v6->gtk.decrypt_key)); 2750 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2751 v6->gtk.tkip_mic_key, 2752 sizeof(v6->gtk.tkip_mic_key)); 2753 2754 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc); 2755 2756 /* hardcode the key length to 16 since v6 only supports 16 */ 2757 status->gtk[0].len = 16; 2758 2759 /* 2760 * The key index only uses 2 bits (values 0 to 3) and 2761 * we always set bit 7 which means this is the 2762 * currently used key. 2763 */ 2764 status->gtk[0].flags = v6->gtk.key_index | BIT(7); 2765 } else if (notif_ver == 7) { 2766 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data; 2767 2768 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len); 2769 if (!status) 2770 goto out_free_resp; 2771 2772 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc); 2773 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]); 2774 iwl_mvm_convert_igtk(status, &v7->igtk[0]); 2775 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) { 2776 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data; 2777 2778 /* these three command versions have same layout and size, the 2779 * difference is only in a few not used (reserved) fields. 2780 */ 2781 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len); 2782 if (!status) 2783 goto out_free_resp; 2784 2785 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc); 2786 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]); 2787 iwl_mvm_convert_igtk(status, &v9->igtk[0]); 2788 2789 status->tid_tear_down = v9->tid_tear_down; 2790 } else if (notif_ver == 12) { 2791 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data; 2792 2793 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len); 2794 if (!status) 2795 goto out_free_resp; 2796 2797 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc); 2798 iwl_mvm_convert_gtk_v3(status, v12->gtk); 2799 iwl_mvm_convert_igtk(status, &v12->igtk[0]); 2800 2801 status->tid_tear_down = v12->tid_tear_down; 2802 } else { 2803 IWL_ERR(mvm, 2804 "Firmware advertises unknown WoWLAN status response %d!\n", 2805 notif_ver); 2806 status = NULL; 2807 } 2808 2809 out_free_resp: 2810 iwl_free_resp(&cmd); 2811 return status; 2812 } 2813 2814 /* releases the MVM mutex */ 2815 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, 2816 struct ieee80211_vif *vif, 2817 struct iwl_wowlan_status_data *status) 2818 { 2819 int i; 2820 bool keep = false; 2821 struct iwl_mvm_sta *mvm_ap_sta; 2822 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2823 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 2824 struct iwl_mvm_vif_link_info *mvm_link = mvmvif->link[link_id]; 2825 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 2826 PROT_OFFLOAD_GROUP, 2827 WOWLAN_INFO_NOTIFICATION, 2828 IWL_FW_CMD_VER_UNKNOWN); 2829 2830 if (WARN_ON(!mvm_link)) 2831 goto out_unlock; 2832 2833 if (!status) 2834 goto out_unlock; 2835 2836 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n", 2837 status->wakeup_reasons); 2838 2839 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, mvm_link->ap_sta_id); 2840 if (!mvm_ap_sta) 2841 goto out_unlock; 2842 2843 /* firmware stores last-used value, we store next value */ 2844 if (wowlan_info_ver >= 5) { 2845 mvm_ap_sta->tid_data[status->tid_offloaded_tx].seq_number = 2846 status->qos_seq_ctr[status->tid_offloaded_tx] + 0x10; 2847 } else { 2848 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2849 mvm_ap_sta->tid_data[i].seq_number = 2850 status->qos_seq_ctr[i] + 0x10; 2851 } 2852 2853 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 2854 i = mvm->offload_tid; 2855 iwl_trans_set_q_ptrs(mvm->trans, 2856 mvm_ap_sta->tid_data[i].txq_id, 2857 mvm_ap_sta->tid_data[i].seq_number >> 4); 2858 } 2859 2860 iwl_mvm_report_wakeup_reasons(mvm, vif, status); 2861 2862 keep = iwl_mvm_setup_connection_keep(mvm, vif, status); 2863 out_unlock: 2864 mutex_unlock(&mvm->mutex); 2865 return keep; 2866 } 2867 2868 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \ 2869 IWL_SCAN_MAX_PROFILES) 2870 2871 struct iwl_mvm_nd_results { 2872 u32 matched_profiles; 2873 u8 matches[ND_QUERY_BUF_LEN]; 2874 }; 2875 2876 static int 2877 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, 2878 struct iwl_mvm_nd_results *results) 2879 { 2880 struct iwl_scan_offload_match_info *query; 2881 struct iwl_host_cmd cmd = { 2882 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, 2883 .flags = CMD_WANT_SKB, 2884 }; 2885 int ret, len; 2886 size_t query_len, matches_len; 2887 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw); 2888 2889 ret = iwl_mvm_send_cmd(mvm, &cmd); 2890 if (ret) { 2891 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); 2892 return ret; 2893 } 2894 2895 if (fw_has_api(&mvm->fw->ucode_capa, 2896 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2897 query_len = sizeof(struct iwl_scan_offload_match_info); 2898 matches_len = sizeof(struct iwl_scan_offload_profile_match) * 2899 max_profiles; 2900 } else { 2901 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1); 2902 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) * 2903 max_profiles; 2904 } 2905 2906 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2907 if (len < query_len) { 2908 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); 2909 ret = -EIO; 2910 goto out_free_resp; 2911 } 2912 2913 query = (void *)cmd.resp_pkt->data; 2914 2915 results->matched_profiles = le32_to_cpu(query->matched_profiles); 2916 memcpy(results->matches, query->matches, matches_len); 2917 2918 #ifdef CONFIG_IWLWIFI_DEBUGFS 2919 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); 2920 #endif 2921 2922 out_free_resp: 2923 iwl_free_resp(&cmd); 2924 return ret; 2925 } 2926 2927 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm, 2928 struct iwl_mvm_nd_results *results, 2929 int idx) 2930 { 2931 int n_chans = 0, i; 2932 2933 if (fw_has_api(&mvm->fw->ucode_capa, 2934 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2935 struct iwl_scan_offload_profile_match *matches = 2936 (void *)results->matches; 2937 2938 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++) 2939 n_chans += hweight8(matches[idx].matching_channels[i]); 2940 } else { 2941 struct iwl_scan_offload_profile_match_v1 *matches = 2942 (void *)results->matches; 2943 2944 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++) 2945 n_chans += hweight8(matches[idx].matching_channels[i]); 2946 } 2947 2948 return n_chans; 2949 } 2950 2951 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm, 2952 struct iwl_mvm_nd_results *results, 2953 struct cfg80211_wowlan_nd_match *match, 2954 int idx) 2955 { 2956 int i; 2957 2958 if (fw_has_api(&mvm->fw->ucode_capa, 2959 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2960 struct iwl_scan_offload_profile_match *matches = 2961 (void *)results->matches; 2962 2963 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++) 2964 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2965 match->channels[match->n_channels++] = 2966 mvm->nd_channels[i]->center_freq; 2967 } else { 2968 struct iwl_scan_offload_profile_match_v1 *matches = 2969 (void *)results->matches; 2970 2971 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++) 2972 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2973 match->channels[match->n_channels++] = 2974 mvm->nd_channels[i]->center_freq; 2975 } 2976 } 2977 2978 /** 2979 * enum iwl_d3_notif - d3 notifications 2980 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received 2981 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received 2982 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received 2983 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received 2984 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received 2985 */ 2986 enum iwl_d3_notif { 2987 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0), 2988 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1), 2989 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2), 2990 IWL_D3_ND_MATCH_INFO = BIT(3), 2991 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4) 2992 }; 2993 2994 /* manage d3 resume data */ 2995 struct iwl_d3_data { 2996 struct iwl_wowlan_status_data *status; 2997 bool test; 2998 u32 d3_end_flags; 2999 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */ 3000 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */ 3001 struct iwl_mvm_nd_results *nd_results; 3002 bool nd_results_valid; 3003 }; 3004 3005 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, 3006 struct ieee80211_vif *vif, 3007 struct iwl_d3_data *d3_data) 3008 { 3009 struct cfg80211_wowlan_nd_info *net_detect = NULL; 3010 struct cfg80211_wowlan_wakeup wakeup = { 3011 .pattern_idx = -1, 3012 }; 3013 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 3014 unsigned long matched_profiles; 3015 u32 reasons = 0; 3016 int i, n_matches, ret; 3017 3018 if (WARN_ON(!d3_data || !d3_data->status)) 3019 goto out; 3020 3021 reasons = d3_data->status->wakeup_reasons; 3022 3023 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 3024 wakeup.rfkill_release = true; 3025 3026 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) 3027 goto out; 3028 3029 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3030 WOWLAN_INFO_NOTIFICATION, 0)) { 3031 IWL_INFO(mvm, "Query FW for ND results\n"); 3032 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results); 3033 3034 } else { 3035 IWL_INFO(mvm, "Notification based ND results\n"); 3036 ret = d3_data->nd_results_valid ? 0 : -1; 3037 } 3038 3039 if (ret || !d3_data->nd_results->matched_profiles) { 3040 wakeup_report = NULL; 3041 goto out; 3042 } 3043 3044 matched_profiles = d3_data->nd_results->matched_profiles; 3045 if (mvm->n_nd_match_sets) { 3046 n_matches = hweight_long(matched_profiles); 3047 } else { 3048 IWL_ERR(mvm, "no net detect match information available\n"); 3049 n_matches = 0; 3050 } 3051 3052 net_detect = kzalloc(struct_size(net_detect, matches, n_matches), 3053 GFP_KERNEL); 3054 if (!net_detect || !n_matches) 3055 goto out_report_nd; 3056 3057 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { 3058 struct cfg80211_wowlan_nd_match *match; 3059 int idx, n_channels = 0; 3060 3061 n_channels = iwl_mvm_query_num_match_chans(mvm, 3062 d3_data->nd_results, 3063 i); 3064 3065 match = kzalloc(struct_size(match, channels, n_channels), 3066 GFP_KERNEL); 3067 if (!match) 3068 goto out_report_nd; 3069 3070 net_detect->matches[net_detect->n_matches++] = match; 3071 3072 /* We inverted the order of the SSIDs in the scan 3073 * request, so invert the index here. 3074 */ 3075 idx = mvm->n_nd_match_sets - i - 1; 3076 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; 3077 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, 3078 match->ssid.ssid_len); 3079 3080 if (mvm->n_nd_channels < n_channels) 3081 continue; 3082 3083 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i); 3084 } 3085 3086 out_report_nd: 3087 wakeup.net_detect = net_detect; 3088 out: 3089 iwl_mvm_free_nd(mvm); 3090 3091 mutex_unlock(&mvm->mutex); 3092 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 3093 3094 if (net_detect) { 3095 for (i = 0; i < net_detect->n_matches; i++) 3096 kfree(net_detect->matches[i]); 3097 kfree(net_detect); 3098 } 3099 } 3100 3101 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, 3102 struct ieee80211_vif *vif) 3103 { 3104 /* skip the one we keep connection on */ 3105 if (data == vif) 3106 return; 3107 3108 if (vif->type == NL80211_IFTYPE_STATION) 3109 ieee80211_resume_disconnect(vif); 3110 } 3111 3112 static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm, 3113 struct ieee80211_vif *vif) 3114 { 3115 u32 err_id; 3116 3117 /* check for lmac1 error */ 3118 if (iwl_fwrt_read_err_table(mvm->trans, 3119 mvm->trans->dbg.lmac_error_event_table[0], 3120 &err_id)) { 3121 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN && vif) { 3122 struct cfg80211_wowlan_wakeup wakeup = { 3123 .rfkill_release = true, 3124 }; 3125 ieee80211_report_wowlan_wakeup(vif, &wakeup, 3126 GFP_KERNEL); 3127 } 3128 return true; 3129 } 3130 3131 /* check if we have lmac2 set and check for error */ 3132 if (iwl_fwrt_read_err_table(mvm->trans, 3133 mvm->trans->dbg.lmac_error_event_table[1], 3134 NULL)) 3135 return true; 3136 3137 /* check for umac error */ 3138 if (iwl_fwrt_read_err_table(mvm->trans, 3139 mvm->trans->dbg.umac_error_event_table, 3140 NULL)) 3141 return true; 3142 3143 return false; 3144 } 3145 3146 /* 3147 * This function assumes: 3148 * 1. The mutex is already held. 3149 * 2. The callee functions unlock the mutex. 3150 */ 3151 static bool 3152 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm, 3153 struct ieee80211_vif *vif, 3154 struct iwl_d3_data *d3_data) 3155 { 3156 lockdep_assert_held(&mvm->mutex); 3157 3158 /* if FW uses status notification, status shouldn't be NULL here */ 3159 if (!d3_data->status) { 3160 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3161 u8 sta_id = mvm->net_detect ? IWL_INVALID_STA : 3162 mvmvif->deflink.ap_sta_id; 3163 3164 /* bug - FW with MLO has status notification */ 3165 WARN_ON(ieee80211_vif_is_mld(vif)); 3166 3167 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id); 3168 } 3169 3170 if (mvm->net_detect) { 3171 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data); 3172 } else { 3173 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif, 3174 d3_data->status); 3175 3176 #ifdef CONFIG_IWLWIFI_DEBUGFS 3177 if (keep) 3178 mvm->keep_vif = vif; 3179 #endif 3180 3181 return keep; 3182 } 3183 return false; 3184 } 3185 3186 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \ 3187 IWL_WOWLAN_WAKEUP_BY_PATTERN | \ 3188 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\ 3189 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\ 3190 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\ 3191 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD) 3192 3193 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm, 3194 struct iwl_wowlan_wake_pkt_notif *notif, 3195 struct iwl_wowlan_status_data *status, 3196 u32 len) 3197 { 3198 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length); 3199 3200 if (len < sizeof(*notif)) { 3201 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n"); 3202 return -EIO; 3203 } 3204 3205 if (WARN_ON(!status)) { 3206 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n"); 3207 return -EIO; 3208 } 3209 3210 if (WARN_ON(!(status->wakeup_reasons & 3211 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) { 3212 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n", 3213 status->wakeup_reasons); 3214 return -EIO; 3215 } 3216 3217 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet); 3218 3219 /* data_size got the padding from the notification, remove it. */ 3220 if (packet_len < data_size) 3221 data_size = packet_len; 3222 3223 status->wake_packet = kmemdup(notif->wake_packet, data_size, 3224 GFP_ATOMIC); 3225 3226 if (!status->wake_packet) 3227 return -ENOMEM; 3228 3229 status->wake_packet_length = packet_len; 3230 status->wake_packet_bufsize = data_size; 3231 3232 return 0; 3233 } 3234 3235 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm, 3236 struct iwl_d3_data *d3_data, 3237 struct iwl_scan_offload_match_info *notif, 3238 u32 len) 3239 { 3240 struct iwl_wowlan_status_data *status = d3_data->status; 3241 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); 3242 struct iwl_mvm_nd_results *results = d3_data->nd_results; 3243 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) * 3244 iwl_umac_scan_get_max_profiles(mvm->fw); 3245 3246 if (IS_ERR_OR_NULL(vif)) 3247 return; 3248 3249 if (len < sizeof(struct iwl_scan_offload_match_info)) { 3250 IWL_ERR(mvm, "Invalid scan match info notification\n"); 3251 return; 3252 } 3253 3254 if (!mvm->net_detect) { 3255 IWL_ERR(mvm, "Unexpected scan match info notification\n"); 3256 return; 3257 } 3258 3259 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 3260 IWL_ERR(mvm, 3261 "Ignore scan match info notification: no reason\n"); 3262 return; 3263 } 3264 3265 #ifdef CONFIG_IWLWIFI_DEBUGFS 3266 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done); 3267 #endif 3268 3269 results->matched_profiles = le32_to_cpu(notif->matched_profiles); 3270 IWL_INFO(mvm, "number of matched profiles=%u\n", 3271 results->matched_profiles); 3272 3273 if (results->matched_profiles) { 3274 memcpy(results->matches, notif->matches, matches_len); 3275 d3_data->nd_results_valid = true; 3276 } 3277 3278 /* no scan should be active at this point */ 3279 mvm->scan_status = 0; 3280 for (i = 0; i < mvm->max_scans; i++) 3281 mvm->scan_uid_status[i] = 0; 3282 } 3283 3284 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait, 3285 struct iwl_rx_packet *pkt, void *data) 3286 { 3287 struct iwl_mvm *mvm = 3288 container_of(notif_wait, struct iwl_mvm, notif_wait); 3289 struct iwl_d3_data *d3_data = data; 3290 u32 len = iwl_rx_packet_payload_len(pkt); 3291 int ret; 3292 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 3293 PROT_OFFLOAD_GROUP, 3294 WOWLAN_INFO_NOTIFICATION, 3295 IWL_FW_CMD_VER_UNKNOWN); 3296 3297 3298 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) { 3299 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): { 3300 3301 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) { 3302 /* We might get two notifications due to dual bss */ 3303 IWL_DEBUG_WOWLAN(mvm, 3304 "Got additional wowlan info notification\n"); 3305 break; 3306 } 3307 3308 if (wowlan_info_ver < 2) { 3309 struct iwl_wowlan_info_notif_v1 *notif_v1 = 3310 (void *)pkt->data; 3311 struct iwl_wowlan_info_notif_v2 *notif_v2; 3312 3313 notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC); 3314 3315 if (!notif_v2) 3316 return false; 3317 3318 notif_v2->tid_tear_down = notif_v1->tid_tear_down; 3319 notif_v2->station_id = notif_v1->station_id; 3320 memset_after(notif_v2, 0, station_id); 3321 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, 3322 d3_data->status, 3323 len); 3324 kfree(notif_v2); 3325 3326 } else if (wowlan_info_ver == 2) { 3327 struct iwl_wowlan_info_notif_v2 *notif_v2 = 3328 (void *)pkt->data; 3329 3330 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, 3331 d3_data->status, 3332 len); 3333 } else if (wowlan_info_ver < 5) { 3334 struct iwl_wowlan_info_notif_v4 *notif = 3335 (void *)pkt->data; 3336 3337 iwl_mvm_parse_wowlan_info_notif_v4(mvm, notif, 3338 d3_data->status, len, 3339 wowlan_info_ver > 3); 3340 } else { 3341 struct iwl_wowlan_info_notif *notif = 3342 (void *)pkt->data; 3343 3344 iwl_mvm_parse_wowlan_info_notif(mvm, notif, 3345 d3_data->status, len); 3346 } 3347 3348 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO; 3349 3350 if (d3_data->status && 3351 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT) 3352 /* We are supposed to get also wake packet notif */ 3353 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 3354 3355 break; 3356 } 3357 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): { 3358 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data; 3359 3360 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) { 3361 /* We shouldn't get two wake packet notifications */ 3362 IWL_ERR(mvm, 3363 "Got additional wowlan wake packet notification\n"); 3364 } else { 3365 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 3366 len = iwl_rx_packet_payload_len(pkt); 3367 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif, 3368 d3_data->status, 3369 len); 3370 if (ret) 3371 IWL_ERR(mvm, 3372 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n"); 3373 } 3374 3375 break; 3376 } 3377 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): { 3378 struct iwl_scan_offload_match_info *notif = (void *)pkt->data; 3379 3380 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) { 3381 IWL_ERR(mvm, 3382 "Got additional netdetect match info\n"); 3383 break; 3384 } 3385 3386 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO; 3387 3388 /* explicitly set this in the 'expected' as well */ 3389 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO; 3390 3391 len = iwl_rx_packet_payload_len(pkt); 3392 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len); 3393 break; 3394 } 3395 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): { 3396 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data; 3397 3398 d3_data->d3_end_flags = __le32_to_cpu(notif->flags); 3399 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF; 3400 3401 break; 3402 } 3403 default: 3404 WARN_ON(1); 3405 } 3406 3407 return d3_data->notif_received == d3_data->notif_expected; 3408 } 3409 3410 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test) 3411 { 3412 int ret; 3413 enum iwl_d3_status d3_status; 3414 struct iwl_host_cmd cmd = { 3415 .id = D0I3_END_CMD, 3416 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3, 3417 }; 3418 bool reset = fw_has_capa(&mvm->fw->ucode_capa, 3419 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3420 3421 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset); 3422 if (ret) 3423 return ret; 3424 3425 if (d3_status != IWL_D3_STATUS_ALIVE) { 3426 IWL_INFO(mvm, "Device was reset during suspend\n"); 3427 return -ENOENT; 3428 } 3429 3430 /* 3431 * We should trigger resume flow using command only for 22000 family 3432 * AX210 and above don't need the command since they have 3433 * the doorbell interrupt. 3434 */ 3435 if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 && 3436 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) { 3437 ret = iwl_mvm_send_cmd(mvm, &cmd); 3438 if (ret < 0) 3439 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n", 3440 ret); 3441 } 3442 3443 return ret; 3444 } 3445 3446 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 3) 3447 3448 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm, 3449 struct iwl_d3_data *d3_data) 3450 { 3451 static const u16 d3_resume_notif[] = { 3452 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION), 3453 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION), 3454 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF), 3455 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3456 }; 3457 static const u16 d3_fast_resume_notif[] = { 3458 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3459 }; 3460 struct iwl_notification_wait wait_d3_notif; 3461 int ret; 3462 3463 if (mvm->fast_resume) 3464 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3465 d3_fast_resume_notif, 3466 ARRAY_SIZE(d3_fast_resume_notif), 3467 iwl_mvm_wait_d3_notif, d3_data); 3468 else 3469 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3470 d3_resume_notif, 3471 ARRAY_SIZE(d3_resume_notif), 3472 iwl_mvm_wait_d3_notif, d3_data); 3473 3474 ret = iwl_mvm_resume_firmware(mvm, d3_data->test); 3475 if (ret) { 3476 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif); 3477 return ret; 3478 } 3479 3480 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif, 3481 IWL_MVM_D3_NOTIF_TIMEOUT); 3482 } 3483 3484 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm) 3485 { 3486 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3487 WOWLAN_INFO_NOTIFICATION, 0) && 3488 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3489 WOWLAN_WAKE_PKT_NOTIFICATION, 0) && 3490 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3491 D3_END_NOTIFICATION, 0); 3492 } 3493 3494 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) 3495 { 3496 struct ieee80211_vif *vif = NULL; 3497 int ret = 1; 3498 struct iwl_mvm_nd_results results = {}; 3499 struct iwl_d3_data d3_data = { 3500 .test = test, 3501 .notif_expected = 3502 IWL_D3_NOTIF_WOWLAN_INFO | 3503 IWL_D3_NOTIF_D3_END_NOTIF, 3504 .nd_results_valid = false, 3505 .nd_results = &results, 3506 }; 3507 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3508 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3509 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa, 3510 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST); 3511 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm); 3512 bool keep = false; 3513 3514 mutex_lock(&mvm->mutex); 3515 3516 /* Apparently, the device went away and device_powered_off() was called, 3517 * don't even try to read the rt_status, the device is currently 3518 * inaccessible. 3519 */ 3520 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) { 3521 IWL_INFO(mvm, 3522 "Can't resume, device_powered_off() was called during wowlan\n"); 3523 goto err; 3524 } 3525 3526 mvm->last_reset_or_resume_time_jiffies = jiffies; 3527 3528 /* get the BSS vif pointer again */ 3529 vif = iwl_mvm_get_bss_vif(mvm); 3530 if (IS_ERR_OR_NULL(vif)) 3531 goto err; 3532 3533 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3534 3535 if (iwl_mvm_check_rt_status(mvm, vif)) { 3536 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3537 iwl_mvm_dump_nic_error_log(mvm); 3538 iwl_dbg_tlv_time_point(&mvm->fwrt, 3539 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL); 3540 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert, 3541 false, 0); 3542 ret = 1; 3543 goto err; 3544 } 3545 3546 if (resume_notif_based) { 3547 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL); 3548 if (!d3_data.status) { 3549 IWL_ERR(mvm, "Failed to allocate wowlan status\n"); 3550 ret = -ENOMEM; 3551 goto err; 3552 } 3553 3554 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3555 if (ret) 3556 goto err; 3557 } else { 3558 ret = iwl_mvm_resume_firmware(mvm, test); 3559 if (ret < 0) 3560 goto err; 3561 } 3562 3563 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN); 3564 3565 /* after the successful handshake, we're out of D3 */ 3566 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; 3567 3568 /* when reset is required we can't send these following commands */ 3569 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE) 3570 goto query_wakeup_reasons; 3571 3572 /* 3573 * Query the current location and source from the D3 firmware so we 3574 * can play it back when we re-intiailize the D0 firmware 3575 */ 3576 iwl_mvm_update_changed_regdom(mvm); 3577 3578 /* Re-configure PPAG settings */ 3579 iwl_mvm_ppag_send_cmd(mvm); 3580 3581 if (!unified_image) 3582 /* Re-configure default SAR profile */ 3583 iwl_mvm_sar_select_profile(mvm, 1, 1); 3584 3585 if (mvm->net_detect && unified_image) { 3586 /* If this is a non-unified image, we restart the FW, 3587 * so no need to stop the netdetect scan. If that 3588 * fails, continue and try to get the wake-up reasons, 3589 * but trigger a HW restart by keeping a failure code 3590 * in ret. 3591 */ 3592 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT, 3593 false); 3594 } 3595 3596 query_wakeup_reasons: 3597 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data); 3598 /* has unlocked the mutex, so skip that */ 3599 goto out; 3600 3601 err: 3602 mutex_unlock(&mvm->mutex); 3603 out: 3604 if (d3_data.status) 3605 kfree(d3_data.status->wake_packet); 3606 kfree(d3_data.status); 3607 iwl_mvm_free_nd(mvm); 3608 3609 if (!d3_data.test && !mvm->net_detect) 3610 ieee80211_iterate_active_interfaces_mtx(mvm->hw, 3611 IEEE80211_IFACE_ITER_NORMAL, 3612 iwl_mvm_d3_disconnect_iter, 3613 keep ? vif : NULL); 3614 3615 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3616 3617 /* no need to reset the device in unified images, if successful */ 3618 if (unified_image && !ret) { 3619 /* nothing else to do if we already sent D0I3_END_CMD */ 3620 if (d0i3_first) 3621 return 0; 3622 3623 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3624 D3_END_NOTIFICATION, 0)) { 3625 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL); 3626 if (!ret) 3627 return 0; 3628 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) { 3629 return 0; 3630 } 3631 } 3632 3633 /* 3634 * Reconfigure the device in one of the following cases: 3635 * 1. We are not using a unified image 3636 * 2. We are using a unified image but had an error while exiting D3 3637 */ 3638 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 3639 3640 /* regardless of what happened, we're now out of D3 */ 3641 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; 3642 3643 return 1; 3644 } 3645 3646 int iwl_mvm_resume(struct ieee80211_hw *hw) 3647 { 3648 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3649 int ret; 3650 3651 ret = __iwl_mvm_resume(mvm, false); 3652 3653 iwl_mvm_resume_tcm(mvm); 3654 3655 iwl_fw_runtime_resume(&mvm->fwrt); 3656 3657 return ret; 3658 } 3659 3660 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) 3661 { 3662 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3663 3664 device_set_wakeup_enable(mvm->trans->dev, enabled); 3665 } 3666 3667 void iwl_mvm_fast_suspend(struct iwl_mvm *mvm) 3668 { 3669 struct iwl_d3_manager_config d3_cfg_cmd_data = {}; 3670 int ret; 3671 3672 lockdep_assert_held(&mvm->mutex); 3673 3674 IWL_DEBUG_WOWLAN(mvm, "Starting fast suspend flow\n"); 3675 3676 mvm->fast_resume = true; 3677 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3678 3679 WARN_ON(iwl_mvm_power_update_device(mvm)); 3680 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; 3681 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SEND_IN_D3, 3682 sizeof(d3_cfg_cmd_data), &d3_cfg_cmd_data); 3683 if (ret) 3684 IWL_ERR(mvm, 3685 "fast suspend: couldn't send D3_CONFIG_CMD %d\n", ret); 3686 3687 ret = iwl_trans_d3_suspend(mvm->trans, false, false); 3688 if (ret) 3689 IWL_ERR(mvm, "fast suspend: trans_d3_suspend failed %d\n", ret); 3690 } 3691 3692 int iwl_mvm_fast_resume(struct iwl_mvm *mvm) 3693 { 3694 struct iwl_d3_data d3_data = { 3695 .notif_expected = 3696 IWL_D3_NOTIF_D3_END_NOTIF, 3697 }; 3698 int ret; 3699 3700 lockdep_assert_held(&mvm->mutex); 3701 3702 IWL_DEBUG_WOWLAN(mvm, "Starting the fast resume flow\n"); 3703 3704 mvm->last_reset_or_resume_time_jiffies = jiffies; 3705 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3706 3707 if (iwl_mvm_check_rt_status(mvm, NULL)) { 3708 IWL_ERR(mvm, 3709 "iwl_mvm_check_rt_status failed, device is gone during suspend\n"); 3710 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3711 iwl_mvm_dump_nic_error_log(mvm); 3712 iwl_dbg_tlv_time_point(&mvm->fwrt, 3713 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL); 3714 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert, 3715 false, 0); 3716 mvm->trans->state = IWL_TRANS_NO_FW; 3717 ret = -ENODEV; 3718 3719 goto out; 3720 } 3721 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3722 3723 if (ret) { 3724 IWL_ERR(mvm, "Couldn't get the d3 notif %d\n", ret); 3725 mvm->trans->state = IWL_TRANS_NO_FW; 3726 } 3727 3728 out: 3729 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3730 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; 3731 mvm->fast_resume = false; 3732 3733 return ret; 3734 } 3735 3736 #ifdef CONFIG_IWLWIFI_DEBUGFS 3737 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) 3738 { 3739 struct iwl_mvm *mvm = inode->i_private; 3740 int err; 3741 3742 if (mvm->d3_test_active) 3743 return -EBUSY; 3744 3745 file->private_data = inode->i_private; 3746 3747 iwl_mvm_pause_tcm(mvm, true); 3748 3749 iwl_fw_runtime_suspend(&mvm->fwrt); 3750 3751 /* start pseudo D3 */ 3752 rtnl_lock(); 3753 wiphy_lock(mvm->hw->wiphy); 3754 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); 3755 wiphy_unlock(mvm->hw->wiphy); 3756 rtnl_unlock(); 3757 if (err > 0) 3758 err = -EINVAL; 3759 if (err) 3760 return err; 3761 3762 mvm->d3_test_active = true; 3763 mvm->keep_vif = NULL; 3764 return 0; 3765 } 3766 3767 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, 3768 size_t count, loff_t *ppos) 3769 { 3770 struct iwl_mvm *mvm = file->private_data; 3771 unsigned long end = jiffies + 60 * HZ; 3772 u32 pme_asserted; 3773 3774 while (true) { 3775 /* read pme_ptr if available */ 3776 if (mvm->d3_test_pme_ptr) { 3777 pme_asserted = iwl_trans_read_mem32(mvm->trans, 3778 mvm->d3_test_pme_ptr); 3779 if (pme_asserted) 3780 break; 3781 } 3782 3783 if (msleep_interruptible(100)) 3784 break; 3785 3786 if (time_is_before_jiffies(end)) { 3787 IWL_ERR(mvm, 3788 "ending pseudo-D3 with timeout after ~60 seconds\n"); 3789 return -ETIMEDOUT; 3790 } 3791 } 3792 3793 return 0; 3794 } 3795 3796 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, 3797 struct ieee80211_vif *vif) 3798 { 3799 /* skip the one we keep connection on */ 3800 if (_data == vif) 3801 return; 3802 3803 if (vif->type == NL80211_IFTYPE_STATION) 3804 ieee80211_connection_loss(vif); 3805 } 3806 3807 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) 3808 { 3809 struct iwl_mvm *mvm = inode->i_private; 3810 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3811 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3812 3813 mvm->d3_test_active = false; 3814 3815 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3816 3817 rtnl_lock(); 3818 wiphy_lock(mvm->hw->wiphy); 3819 __iwl_mvm_resume(mvm, true); 3820 wiphy_unlock(mvm->hw->wiphy); 3821 rtnl_unlock(); 3822 3823 iwl_mvm_resume_tcm(mvm); 3824 3825 iwl_fw_runtime_resume(&mvm->fwrt); 3826 3827 iwl_abort_notification_waits(&mvm->notif_wait); 3828 if (!unified_image) { 3829 int remaining_time = 10; 3830 3831 ieee80211_restart_hw(mvm->hw); 3832 3833 /* wait for restart and disconnect all interfaces */ 3834 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3835 remaining_time > 0) { 3836 remaining_time--; 3837 msleep(1000); 3838 } 3839 3840 if (remaining_time == 0) 3841 IWL_ERR(mvm, "Timed out waiting for HW restart!\n"); 3842 } 3843 3844 ieee80211_iterate_active_interfaces_atomic( 3845 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 3846 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); 3847 3848 return 0; 3849 } 3850 3851 const struct file_operations iwl_dbgfs_d3_test_ops = { 3852 .open = iwl_mvm_d3_test_open, 3853 .read = iwl_mvm_d3_test_read, 3854 .release = iwl_mvm_d3_test_release, 3855 }; 3856 #endif 3857