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
iwl_mvm_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)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)
iwl_mvm_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct inet6_dev * idev)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
iwl_mvm_set_default_unicast_key(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int idx)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
iwl_mvm_convert_p1k(u16 * p1k,__le16 * out)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
iwl_mvm_find_max_pn(struct ieee80211_key_conf * key,struct iwl_mvm_key_pn * ptk_pn,struct ieee80211_key_seq * seq,int tid,int queues)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
iwl_mvm_wowlan_program_keys(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)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
iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)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
iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)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
iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_vif_link_info * mvm_link)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
iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)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
iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)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
iwl_mvm_send_patterns_v1(struct iwl_mvm * mvm,struct cfg80211_wowlan * wowlan)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
iwl_mvm_send_patterns(struct iwl_mvm * mvm,struct iwl_mvm_vif_link_info * mvm_link,struct cfg80211_wowlan * wowlan)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
iwl_mvm_d3_reprogram(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * ap_sta)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
iwl_mvm_get_last_nonqos_seq(struct iwl_mvm * mvm,struct ieee80211_vif * vif)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
iwl_mvm_set_last_nonqos_seq(struct iwl_mvm * mvm,struct ieee80211_vif * vif)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
iwl_mvm_switch_to_d3(struct iwl_mvm * mvm)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
iwl_mvm_get_wowlan_config(struct iwl_mvm * mvm,struct cfg80211_wowlan * wowlan,struct iwl_wowlan_config_cmd * wowlan_config_cmd,struct ieee80211_vif * vif,struct iwl_mvm_vif * mvmvif,struct ieee80211_sta * ap_sta)923 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
924 struct cfg80211_wowlan *wowlan,
925 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
926 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
927 struct ieee80211_sta *ap_sta)
928 {
929 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
930
931 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
932
933 wowlan_config_cmd->is_11n_connection =
934 ap_sta->deflink.ht_cap.ht_supported;
935 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
936 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
937
938 if (ap_sta->mfp)
939 wowlan_config_cmd->flags |= IS_11W_ASSOC;
940
941 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
942 /* Query the last used seqno and set it */
943 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
944
945 if (ret < 0)
946 return ret;
947
948 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
949 }
950
951 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
952
953 if (wowlan->disconnect)
954 wowlan_config_cmd->wakeup_filter |=
955 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
956 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
957 if (wowlan->magic_pkt)
958 wowlan_config_cmd->wakeup_filter |=
959 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
960 if (wowlan->gtk_rekey_failure)
961 wowlan_config_cmd->wakeup_filter |=
962 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
963 if (wowlan->eap_identity_req)
964 wowlan_config_cmd->wakeup_filter |=
965 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
966 if (wowlan->four_way_handshake)
967 wowlan_config_cmd->wakeup_filter |=
968 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
969 if (wowlan->n_patterns)
970 wowlan_config_cmd->wakeup_filter |=
971 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
972
973 if (wowlan->rfkill_release)
974 wowlan_config_cmd->wakeup_filter |=
975 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
976
977 if (wowlan->tcp) {
978 /*
979 * Set the "link change" (really "link lost") flag as well
980 * since that implies losing the TCP connection.
981 */
982 wowlan_config_cmd->wakeup_filter |=
983 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
984 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
985 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
986 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
987 }
988
989 if (wowlan->any) {
990 wowlan_config_cmd->wakeup_filter |=
991 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
992 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
993 IWL_WOWLAN_WAKEUP_RX_FRAME |
994 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
995 }
996
997 return 0;
998 }
999
iwl_mvm_wowlan_config_key_params(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_vif_link_info * mvm_link)1000 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
1001 struct ieee80211_vif *vif,
1002 struct iwl_mvm_vif_link_info *mvm_link)
1003 {
1004 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
1005 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1006 struct wowlan_key_reprogram_data key_data = {};
1007 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1008 int ret;
1009 u8 cmd_ver;
1010 size_t cmd_size;
1011
1012 if (!unified) {
1013 /*
1014 * if we have to configure keys, call ieee80211_iter_keys(),
1015 * as we need non-atomic context in order to take the
1016 * required locks.
1017 */
1018 /*
1019 * Note that currently we don't use CMD_ASYNC in the iterator.
1020 * In case of key_data.configure_keys, all the configured
1021 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1022 * take care of locking/unlocking mvm->mutex.
1023 */
1024 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1025 &key_data);
1026
1027 if (key_data.error)
1028 return -EIO;
1029 }
1030
1031 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link);
1032 if (ret)
1033 return ret;
1034
1035 if (!fw_has_api(&mvm->fw->ucode_capa,
1036 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
1037 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
1038 IWL_FW_CMD_VER_UNKNOWN);
1039 struct wowlan_key_tkip_data tkip_data = {};
1040 int size;
1041
1042 if (ver == 2) {
1043 size = sizeof(tkip_data.tkip);
1044 tkip_data.tkip.sta_id =
1045 cpu_to_le32(mvm_link->ap_sta_id);
1046 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1047 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1048 } else {
1049 WARN_ON_ONCE(1);
1050 return -EINVAL;
1051 }
1052
1053 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1054 &tkip_data);
1055
1056 if (tkip_data.have_tkip_keys) {
1057 /* send relevant data according to CMD version */
1058 ret = iwl_mvm_send_cmd_pdu(mvm,
1059 WOWLAN_TKIP_PARAM,
1060 CMD_ASYNC, size,
1061 &tkip_data.tkip);
1062 if (ret)
1063 return ret;
1064 }
1065 }
1066
1067 /* configure rekey data only if offloaded rekey is supported (d3) */
1068 if (mvmvif->rekey_data.valid) {
1069 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1070 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1071 &kek_kck_cmd;
1072 struct wowlan_key_gtk_type_iter gtk_type_data = {
1073 .kek_kck_cmd = _kek_kck_cmd,
1074 };
1075
1076 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1077 WOWLAN_KEK_KCK_MATERIAL,
1078 IWL_FW_CMD_VER_UNKNOWN);
1079 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
1080 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1081 return -EINVAL;
1082
1083 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1084 >k_type_data);
1085
1086 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1087 mvmvif->rekey_data.kck_len);
1088 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
1089 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1090 mvmvif->rekey_data.kek_len);
1091 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
1092 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1093 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
1094 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id);
1095
1096 if (cmd_ver == 4) {
1097 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1098 } else {
1099 if (cmd_ver == 3)
1100 cmd_size =
1101 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1102 else
1103 cmd_size =
1104 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1105 /* skip the sta_id at the beginning */
1106 _kek_kck_cmd = (void *)
1107 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
1108 }
1109
1110 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1111 mvmvif->rekey_data.akm);
1112
1113 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1114 CMD_ASYNC, cmd_size, _kek_kck_cmd);
1115 if (ret)
1116 return ret;
1117 }
1118
1119 return 0;
1120 }
1121
1122 static int
iwl_mvm_wowlan_config(struct iwl_mvm * mvm,struct cfg80211_wowlan * wowlan,struct iwl_wowlan_config_cmd * wowlan_config_cmd,struct ieee80211_vif * vif,struct iwl_mvm_vif * mvmvif,struct iwl_mvm_vif_link_info * mvm_link,struct ieee80211_sta * ap_sta)1123 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1124 struct cfg80211_wowlan *wowlan,
1125 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1126 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1127 struct iwl_mvm_vif_link_info *mvm_link,
1128 struct ieee80211_sta *ap_sta)
1129 {
1130 int ret;
1131 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1132 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1133
1134 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1135
1136 if (!unified_image) {
1137 ret = iwl_mvm_switch_to_d3(mvm);
1138 if (ret)
1139 return ret;
1140
1141 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1142 if (ret)
1143 return ret;
1144 }
1145
1146 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link);
1147 if (ret)
1148 return ret;
1149
1150 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1151 sizeof(*wowlan_config_cmd),
1152 wowlan_config_cmd);
1153 if (ret)
1154 return ret;
1155
1156 if (fw_has_api(&mvm->fw->ucode_capa,
1157 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
1158 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan);
1159 else
1160 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
1161 if (ret)
1162 return ret;
1163
1164 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0,
1165 mvm_link->ap_sta_id);
1166 }
1167
1168 static int
iwl_mvm_netdetect_config(struct iwl_mvm * mvm,struct cfg80211_wowlan * wowlan,struct cfg80211_sched_scan_request * nd_config,struct ieee80211_vif * vif)1169 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1170 struct cfg80211_wowlan *wowlan,
1171 struct cfg80211_sched_scan_request *nd_config,
1172 struct ieee80211_vif *vif)
1173 {
1174 int ret;
1175 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1176 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1177
1178 if (!unified_image) {
1179 ret = iwl_mvm_switch_to_d3(mvm);
1180 if (ret)
1181 return ret;
1182 } else {
1183 /* In theory, we wouldn't have to stop a running sched
1184 * scan in order to start another one (for
1185 * net-detect). But in practice this doesn't seem to
1186 * work properly, so stop any running sched_scan now.
1187 */
1188 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1189 if (ret)
1190 return ret;
1191 }
1192
1193 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1194 IWL_MVM_SCAN_NETDETECT);
1195 if (ret)
1196 return ret;
1197
1198 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1199 return -EBUSY;
1200
1201 /* save the sched scan matchsets... */
1202 if (nd_config->n_match_sets) {
1203 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1204 sizeof(*nd_config->match_sets) *
1205 nd_config->n_match_sets,
1206 GFP_KERNEL);
1207 if (mvm->nd_match_sets)
1208 mvm->n_nd_match_sets = nd_config->n_match_sets;
1209 }
1210
1211 /* ...and the sched scan channels for later reporting */
1212 mvm->nd_channels = kmemdup(nd_config->channels,
1213 sizeof(*nd_config->channels) *
1214 nd_config->n_channels,
1215 GFP_KERNEL);
1216 if (mvm->nd_channels)
1217 mvm->n_nd_channels = nd_config->n_channels;
1218
1219 return 0;
1220 }
1221
iwl_mvm_free_nd(struct iwl_mvm * mvm)1222 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1223 {
1224 kfree(mvm->nd_match_sets);
1225 mvm->nd_match_sets = NULL;
1226 mvm->n_nd_match_sets = 0;
1227 kfree(mvm->nd_channels);
1228 mvm->nd_channels = NULL;
1229 mvm->n_nd_channels = 0;
1230 }
1231
__iwl_mvm_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan,bool test)1232 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1233 struct cfg80211_wowlan *wowlan,
1234 bool test)
1235 {
1236 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1237 struct ieee80211_vif *vif = NULL;
1238 struct iwl_mvm_vif *mvmvif = NULL;
1239 struct ieee80211_sta *ap_sta = NULL;
1240 struct iwl_mvm_vif_link_info *mvm_link;
1241 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1242 /*
1243 * Program the minimum sleep time to 10 seconds, as many
1244 * platforms have issues processing a wakeup signal while
1245 * still being in the process of suspending.
1246 */
1247 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1248 };
1249 struct iwl_host_cmd d3_cfg_cmd = {
1250 .id = D3_CONFIG_CMD,
1251 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1252 .data[0] = &d3_cfg_cmd_data,
1253 .len[0] = sizeof(d3_cfg_cmd_data),
1254 };
1255 int ret;
1256 int len __maybe_unused;
1257 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1258 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1259
1260 if (!wowlan) {
1261 /*
1262 * mac80211 shouldn't get here, but for D3 test
1263 * it doesn't warrant a warning
1264 */
1265 WARN_ON(!test);
1266 return -EINVAL;
1267 }
1268
1269 vif = iwl_mvm_get_bss_vif(mvm);
1270 if (IS_ERR_OR_NULL(vif))
1271 return 1;
1272
1273 ret = iwl_mvm_block_esr_sync(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN);
1274 if (ret)
1275 return ret;
1276
1277 mutex_lock(&mvm->mutex);
1278
1279 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1280
1281 synchronize_net();
1282
1283 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1284
1285 mvm_link = mvmvif->link[iwl_mvm_get_primary_link(vif)];
1286 if (WARN_ON_ONCE(!mvm_link)) {
1287 ret = -EINVAL;
1288 goto out_noreset;
1289 }
1290
1291 if (mvm_link->ap_sta_id == IWL_MVM_INVALID_STA) {
1292 /* if we're not associated, this must be netdetect */
1293 if (!wowlan->nd_config) {
1294 ret = 1;
1295 goto out_noreset;
1296 }
1297
1298 ret = iwl_mvm_netdetect_config(
1299 mvm, wowlan, wowlan->nd_config, vif);
1300 if (ret)
1301 goto out;
1302
1303 mvm->net_detect = true;
1304 } else {
1305 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1306 .offloading_tid = 0,
1307 };
1308
1309 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id;
1310
1311 ap_sta = rcu_dereference_protected(
1312 mvm->fw_id_to_mac_id[mvm_link->ap_sta_id],
1313 lockdep_is_held(&mvm->mutex));
1314 if (IS_ERR_OR_NULL(ap_sta)) {
1315 ret = -EINVAL;
1316 goto out_noreset;
1317 }
1318
1319 ret = iwl_mvm_sta_ensure_queue(
1320 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]);
1321 if (ret)
1322 goto out_noreset;
1323
1324 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1325 vif, mvmvif, ap_sta);
1326 if (ret)
1327 goto out_noreset;
1328 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1329 vif, mvmvif, mvm_link, ap_sta);
1330 if (ret)
1331 goto out;
1332
1333 mvm->net_detect = false;
1334 }
1335
1336 ret = iwl_mvm_power_update_device(mvm);
1337 if (ret)
1338 goto out;
1339
1340 ret = iwl_mvm_power_update_mac(mvm);
1341 if (ret)
1342 goto out;
1343
1344 #ifdef CONFIG_IWLWIFI_DEBUGFS
1345 if (mvm->d3_wake_sysassert)
1346 d3_cfg_cmd_data.wakeup_flags |=
1347 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1348 #endif
1349
1350 /*
1351 * Prior to 9000 device family the driver needs to stop the dbg
1352 * recording before entering D3. In later devices the FW stops the
1353 * recording automatically.
1354 */
1355 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1356 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1357
1358 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1359
1360 /* must be last -- this switches firmware state */
1361 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1362 if (ret)
1363 goto out;
1364 #ifdef CONFIG_IWLWIFI_DEBUGFS
1365 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1366 if (len >= sizeof(u32)) {
1367 mvm->d3_test_pme_ptr =
1368 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1369 }
1370 #endif
1371 iwl_free_resp(&d3_cfg_cmd);
1372
1373 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1374
1375 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1376 out:
1377 if (ret < 0) {
1378 iwl_mvm_free_nd(mvm);
1379
1380 if (!unified_image) {
1381 if (mvm->fw_restart > 0) {
1382 mvm->fw_restart--;
1383 ieee80211_restart_hw(mvm->hw);
1384 }
1385 }
1386
1387 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1388 }
1389 out_noreset:
1390 mutex_unlock(&mvm->mutex);
1391
1392 return ret;
1393 }
1394
iwl_mvm_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1395 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1396 {
1397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1398
1399 iwl_mvm_pause_tcm(mvm, true);
1400
1401 mutex_lock(&mvm->mutex);
1402 iwl_fw_runtime_suspend(&mvm->fwrt);
1403 mutex_unlock(&mvm->mutex);
1404
1405 return __iwl_mvm_suspend(hw, wowlan, false);
1406 }
1407
1408 struct iwl_multicast_key_data {
1409 u8 key[WOWLAN_KEY_MAX_SIZE];
1410 u8 len;
1411 u8 flags;
1412 u8 id;
1413 u8 ipn[6];
1414 };
1415
1416 /* converted data from the different status responses */
1417 struct iwl_wowlan_status_data {
1418 u64 replay_ctr;
1419 u32 num_of_gtk_rekeys;
1420 u32 received_beacons;
1421 u32 wakeup_reasons;
1422 u32 wake_packet_length;
1423 u32 wake_packet_bufsize;
1424 u16 pattern_number;
1425 u16 non_qos_seq_ctr;
1426 u16 qos_seq_ctr[8];
1427 u8 tid_tear_down;
1428
1429 struct {
1430 /* including RX MIC key for TKIP */
1431 u8 key[WOWLAN_KEY_MAX_SIZE];
1432 u8 len;
1433 u8 flags;
1434 u8 id;
1435 } gtk[WOWLAN_GTK_KEYS_NUM];
1436
1437 struct {
1438 /*
1439 * We store both the TKIP and AES representations
1440 * coming from the firmware because we decode the
1441 * data from there before we iterate the keys and
1442 * know which one we need.
1443 */
1444 struct {
1445 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1446 } tkip, aes;
1447
1448 /*
1449 * We use -1 for when we have valid data but don't know
1450 * the key ID from firmware, and thus it needs to be
1451 * installed with the last key (depending on rekeying).
1452 */
1453 s8 key_id;
1454 bool valid;
1455 } gtk_seq[2];
1456
1457 struct {
1458 /* Same as above */
1459 struct {
1460 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1461 u64 tx_pn;
1462 } tkip, aes;
1463 } ptk;
1464
1465 struct iwl_multicast_key_data igtk;
1466 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM];
1467
1468 int num_mlo_keys;
1469 struct iwl_wowlan_mlo_gtk mlo_keys[WOWLAN_MAX_MLO_KEYS];
1470
1471 u8 *wake_packet;
1472 };
1473
iwl_mvm_report_wakeup_reasons(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_wowlan_status_data * status)1474 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1475 struct ieee80211_vif *vif,
1476 struct iwl_wowlan_status_data *status)
1477 {
1478 struct sk_buff *pkt = NULL;
1479 struct cfg80211_wowlan_wakeup wakeup = {
1480 .pattern_idx = -1,
1481 };
1482 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1483 u32 reasons = status->wakeup_reasons;
1484
1485 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1486 wakeup_report = NULL;
1487 goto report;
1488 }
1489
1490 pm_wakeup_event(mvm->dev, 0);
1491
1492 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1493 wakeup.magic_pkt = true;
1494
1495 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1496 wakeup.pattern_idx =
1497 status->pattern_number;
1498
1499 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1500 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH |
1501 IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE))
1502 wakeup.disconnect = true;
1503
1504 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1505 wakeup.gtk_rekey_failure = true;
1506
1507 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1508 wakeup.rfkill_release = true;
1509
1510 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1511 wakeup.eap_identity_req = true;
1512
1513 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1514 wakeup.four_way_handshake = true;
1515
1516 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1517 wakeup.tcp_connlost = true;
1518
1519 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1520 wakeup.tcp_nomoretokens = true;
1521
1522 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1523 wakeup.tcp_match = true;
1524
1525 if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC)
1526 wakeup.unprot_deauth_disassoc = true;
1527
1528 if (status->wake_packet) {
1529 int pktsize = status->wake_packet_bufsize;
1530 int pktlen = status->wake_packet_length;
1531 const u8 *pktdata = status->wake_packet;
1532 const struct ieee80211_hdr *hdr = (const void *)pktdata;
1533 int truncated = pktlen - pktsize;
1534
1535 /* this would be a firmware bug */
1536 if (WARN_ON_ONCE(truncated < 0))
1537 truncated = 0;
1538
1539 if (ieee80211_is_data(hdr->frame_control)) {
1540 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1541 int ivlen = 0, icvlen = 4; /* also FCS */
1542
1543 pkt = alloc_skb(pktsize, GFP_KERNEL);
1544 if (!pkt)
1545 goto report;
1546
1547 skb_put_data(pkt, pktdata, hdrlen);
1548 pktdata += hdrlen;
1549 pktsize -= hdrlen;
1550
1551 if (ieee80211_has_protected(hdr->frame_control)) {
1552 /*
1553 * This is unlocked and using gtk_i(c)vlen,
1554 * but since everything is under RTNL still
1555 * that's not really a problem - changing
1556 * it would be difficult.
1557 */
1558 if (is_multicast_ether_addr(hdr->addr1)) {
1559 ivlen = mvm->gtk_ivlen;
1560 icvlen += mvm->gtk_icvlen;
1561 } else {
1562 ivlen = mvm->ptk_ivlen;
1563 icvlen += mvm->ptk_icvlen;
1564 }
1565 }
1566
1567 /* if truncated, FCS/ICV is (partially) gone */
1568 if (truncated >= icvlen) {
1569 icvlen = 0;
1570 truncated -= icvlen;
1571 } else {
1572 icvlen -= truncated;
1573 truncated = 0;
1574 }
1575
1576 pktsize -= ivlen + icvlen;
1577 pktdata += ivlen;
1578
1579 skb_put_data(pkt, pktdata, pktsize);
1580
1581 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1582 goto report;
1583 wakeup.packet = pkt->data;
1584 wakeup.packet_present_len = pkt->len;
1585 wakeup.packet_len = pkt->len - truncated;
1586 wakeup.packet_80211 = false;
1587 } else {
1588 int fcslen = 4;
1589
1590 if (truncated >= 4) {
1591 truncated -= 4;
1592 fcslen = 0;
1593 } else {
1594 fcslen -= truncated;
1595 truncated = 0;
1596 }
1597 pktsize -= fcslen;
1598 wakeup.packet = status->wake_packet;
1599 wakeup.packet_present_len = pktsize;
1600 wakeup.packet_len = pktlen - truncated;
1601 wakeup.packet_80211 = true;
1602 }
1603 }
1604
1605 report:
1606 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1607 kfree_skb(pkt);
1608 }
1609
iwl_mvm_le64_to_aes_seq(__le64 le_pn,struct ieee80211_key_seq * seq)1610 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1611 {
1612 u64 pn = le64_to_cpu(le_pn);
1613
1614 seq->ccmp.pn[0] = pn >> 40;
1615 seq->ccmp.pn[1] = pn >> 32;
1616 seq->ccmp.pn[2] = pn >> 24;
1617 seq->ccmp.pn[3] = pn >> 16;
1618 seq->ccmp.pn[4] = pn >> 8;
1619 seq->ccmp.pn[5] = pn;
1620 }
1621
iwl_mvm_aes_sc_to_seq(struct aes_sc * sc,struct ieee80211_key_seq * seq)1622 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1623 struct ieee80211_key_seq *seq)
1624 {
1625 iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1626 }
1627
iwl_mvm_le64_to_tkip_seq(__le64 le_pn,struct ieee80211_key_seq * seq)1628 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1629 {
1630 u64 pn = le64_to_cpu(le_pn);
1631
1632 seq->tkip.iv16 = (u16)pn;
1633 seq->tkip.iv32 = (u32)(pn >> 16);
1634 }
1635
iwl_mvm_tkip_sc_to_seq(struct tkip_sc * sc,struct ieee80211_key_seq * seq)1636 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1637 struct ieee80211_key_seq *seq)
1638 {
1639 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1640 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1641 }
1642
iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf * key,struct ieee80211_key_seq * seq)1643 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1644 struct ieee80211_key_seq *seq)
1645 {
1646 int tid;
1647
1648 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1649 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1650 }
1651
iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm * mvm,struct iwl_wowlan_status_data * status,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)1652 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1653 struct iwl_wowlan_status_data *status,
1654 struct ieee80211_sta *sta,
1655 struct ieee80211_key_conf *key)
1656 {
1657 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1658 struct iwl_mvm_key_pn *ptk_pn;
1659 int tid;
1660
1661 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
1662
1663 if (!iwl_mvm_has_new_rx_api(mvm))
1664 return;
1665
1666
1667 rcu_read_lock();
1668 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1669 if (WARN_ON(!ptk_pn)) {
1670 rcu_read_unlock();
1671 return;
1672 }
1673
1674 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1675 int i;
1676
1677 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1678 memcpy(ptk_pn->q[i].pn[tid],
1679 status->ptk.aes.seq[tid].ccmp.pn,
1680 IEEE80211_CCMP_PN_LEN);
1681 }
1682 rcu_read_unlock();
1683 }
1684
iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data * status,union iwl_all_tsc_rsc * sc)1685 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1686 union iwl_all_tsc_rsc *sc)
1687 {
1688 int i;
1689
1690 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1691 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1692
1693 /* GTK RX counters */
1694 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1695 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
1696 &status->gtk_seq[0].tkip.seq[i]);
1697 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
1698 &status->gtk_seq[0].aes.seq[i]);
1699 }
1700 status->gtk_seq[0].valid = true;
1701 status->gtk_seq[0].key_id = -1;
1702
1703 /* PTK TX counter */
1704 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1705 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1706 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1707
1708 /* PTK RX counters */
1709 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1710 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1711 &status->ptk.tkip.seq[i]);
1712 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1713 &status->ptk.aes.seq[i]);
1714 }
1715 }
1716
1717 static void
iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data * status,struct iwl_wowlan_all_rsc_tsc_v5 * sc,unsigned int idx,unsigned int key_id)1718 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1719 struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1720 unsigned int idx, unsigned int key_id)
1721 {
1722 int tid;
1723
1724 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1725 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1726 &status->gtk_seq[idx].tkip.seq[tid]);
1727 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1728 &status->gtk_seq[idx].aes.seq[tid]);
1729 }
1730
1731 status->gtk_seq[idx].valid = true;
1732 status->gtk_seq[idx].key_id = key_id;
1733 }
1734
1735 static void
iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data * status,struct iwl_wowlan_all_rsc_tsc_v5 * sc)1736 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1737 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1738 {
1739 int i, tid;
1740
1741 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1742 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1743 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1744
1745 /* GTK RX counters */
1746 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1747 u8 entry = sc->mcast_key_id_map[i];
1748
1749 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1750 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1751 entry, i);
1752 }
1753
1754 /* PTK TX counters not needed, assigned in device */
1755
1756 /* PTK RX counters */
1757 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1758 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1759 &status->ptk.tkip.seq[tid]);
1760 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1761 &status->ptk.aes.seq[tid]);
1762 }
1763 }
1764
iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf * key,struct iwl_wowlan_status_data * status,int idx)1765 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1766 struct iwl_wowlan_status_data *status,
1767 int idx)
1768 {
1769 switch (key->cipher) {
1770 case WLAN_CIPHER_SUITE_CCMP:
1771 case WLAN_CIPHER_SUITE_GCMP:
1772 case WLAN_CIPHER_SUITE_GCMP_256:
1773 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
1774 break;
1775 case WLAN_CIPHER_SUITE_TKIP:
1776 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
1777 break;
1778 default:
1779 WARN_ON(1);
1780 }
1781 }
1782
iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf * key,struct iwl_wowlan_status_data * status,bool installed)1783 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1784 struct iwl_wowlan_status_data *status,
1785 bool installed)
1786 {
1787 int i;
1788
1789 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1790 if (!status->gtk_seq[i].valid)
1791 continue;
1792
1793 /* Handle the case where we know the key ID */
1794 if (status->gtk_seq[i].key_id == key->keyidx) {
1795 s8 new_key_id = -1;
1796
1797 if (status->num_of_gtk_rekeys)
1798 new_key_id = status->gtk[0].flags &
1799 IWL_WOWLAN_GTK_IDX_MASK;
1800
1801 /* Don't install a new key's value to an old key */
1802 if (new_key_id != key->keyidx)
1803 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1804 continue;
1805 }
1806
1807 /* handle the case where we didn't, last key only */
1808 if (status->gtk_seq[i].key_id == -1 &&
1809 (!status->num_of_gtk_rekeys || installed))
1810 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1811 }
1812 }
1813
1814 struct iwl_mvm_d3_gtk_iter_data {
1815 struct iwl_mvm *mvm;
1816 struct iwl_wowlan_status_data *status;
1817 u32 gtk_cipher, igtk_cipher, bigtk_cipher;
1818 bool unhandled_cipher, igtk_support, bigtk_support;
1819 int num_keys;
1820 };
1821
iwl_mvm_d3_find_last_keys(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)1822 static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw,
1823 struct ieee80211_vif *vif,
1824 struct ieee80211_sta *sta,
1825 struct ieee80211_key_conf *key,
1826 void *_data)
1827 {
1828 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1829 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
1830
1831 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id)
1832 return;
1833
1834 if (data->unhandled_cipher)
1835 return;
1836
1837 switch (key->cipher) {
1838 case WLAN_CIPHER_SUITE_WEP40:
1839 case WLAN_CIPHER_SUITE_WEP104:
1840 /* ignore WEP completely, nothing to do */
1841 return;
1842 case WLAN_CIPHER_SUITE_CCMP:
1843 case WLAN_CIPHER_SUITE_GCMP:
1844 case WLAN_CIPHER_SUITE_GCMP_256:
1845 case WLAN_CIPHER_SUITE_TKIP:
1846 /* we support these */
1847 data->gtk_cipher = key->cipher;
1848 break;
1849 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1850 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1851 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1852 case WLAN_CIPHER_SUITE_AES_CMAC:
1853 /* we support these */
1854 if (data->igtk_support &&
1855 (key->keyidx == 4 || key->keyidx == 5)) {
1856 data->igtk_cipher = key->cipher;
1857 } else if (data->bigtk_support &&
1858 (key->keyidx == 6 || key->keyidx == 7)) {
1859 data->bigtk_cipher = key->cipher;
1860 } else {
1861 data->unhandled_cipher = true;
1862 return;
1863 }
1864 break;
1865 default:
1866 /* everything else - disconnect from AP */
1867 data->unhandled_cipher = true;
1868 return;
1869 }
1870
1871 data->num_keys++;
1872 }
1873
1874 static void
iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data * key,struct ieee80211_key_seq * seq,u32 cipher)1875 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key,
1876 struct ieee80211_key_seq *seq, u32 cipher)
1877 {
1878 switch (cipher) {
1879 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1880 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1881 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn));
1882 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn));
1883 break;
1884 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1885 case WLAN_CIPHER_SUITE_AES_CMAC:
1886 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn));
1887 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn));
1888 break;
1889 default:
1890 WARN_ON(1);
1891 }
1892 }
1893
1894 static void
iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data * status,struct ieee80211_key_conf * key,struct iwl_multicast_key_data * key_data)1895 iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status,
1896 struct ieee80211_key_conf *key,
1897 struct iwl_multicast_key_data *key_data)
1898 {
1899 if (status->num_of_gtk_rekeys && key_data->len) {
1900 /* remove rekeyed key */
1901 ieee80211_remove_key(key);
1902 } else {
1903 struct ieee80211_key_seq seq;
1904
1905 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data,
1906 &seq,
1907 key->cipher);
1908 ieee80211_set_key_rx_seq(key, 0, &seq);
1909 }
1910 }
1911
iwl_mvm_d3_update_keys(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * _data)1912 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1913 struct ieee80211_vif *vif,
1914 struct ieee80211_sta *sta,
1915 struct ieee80211_key_conf *key,
1916 void *_data)
1917 {
1918 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1919 struct iwl_wowlan_status_data *status = data->status;
1920 s8 keyidx;
1921 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
1922
1923 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id)
1924 return;
1925
1926 if (data->unhandled_cipher)
1927 return;
1928
1929 switch (key->cipher) {
1930 case WLAN_CIPHER_SUITE_WEP40:
1931 case WLAN_CIPHER_SUITE_WEP104:
1932 /* ignore WEP completely, nothing to do */
1933 return;
1934 case WLAN_CIPHER_SUITE_CCMP:
1935 case WLAN_CIPHER_SUITE_GCMP:
1936 case WLAN_CIPHER_SUITE_GCMP_256:
1937 if (sta) {
1938 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1939 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
1940 return;
1941 }
1942 fallthrough;
1943 case WLAN_CIPHER_SUITE_TKIP:
1944 if (sta) {
1945 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1946 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
1947 return;
1948 }
1949 keyidx = key->keyidx;
1950 /* The current key is always sent by the FW, even if it wasn't
1951 * rekeyed during D3.
1952 * We remove an existing key if it has the same index as
1953 * a new key
1954 */
1955 if (status->num_of_gtk_rekeys &&
1956 ((status->gtk[0].len && keyidx == status->gtk[0].id) ||
1957 (status->gtk[1].len && keyidx == status->gtk[1].id))) {
1958 ieee80211_remove_key(key);
1959 } else {
1960 iwl_mvm_set_key_rx_seq(key, data->status, false);
1961 }
1962 break;
1963 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1964 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1965 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1966 case WLAN_CIPHER_SUITE_AES_CMAC:
1967 if (key->keyidx == 4 || key->keyidx == 5) {
1968 iwl_mvm_d3_update_igtk_bigtk(status, key,
1969 &status->igtk);
1970 }
1971 if (key->keyidx == 6 || key->keyidx == 7) {
1972 u8 idx = key->keyidx == status->bigtk[1].id;
1973
1974 iwl_mvm_d3_update_igtk_bigtk(status, key,
1975 &status->bigtk[idx]);
1976 }
1977 }
1978 }
1979
1980 struct iwl_mvm_d3_mlo_old_keys {
1981 u32 cipher[IEEE80211_MLD_MAX_NUM_LINKS][WOWLAN_MLO_GTK_KEY_NUM_TYPES];
1982 struct ieee80211_key_conf *key[IEEE80211_MLD_MAX_NUM_LINKS][8];
1983 };
1984
iwl_mvm_mlo_key_ciphers(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * data)1985 static void iwl_mvm_mlo_key_ciphers(struct ieee80211_hw *hw,
1986 struct ieee80211_vif *vif,
1987 struct ieee80211_sta *sta,
1988 struct ieee80211_key_conf *key,
1989 void *data)
1990 {
1991 struct iwl_mvm_d3_mlo_old_keys *old_keys = data;
1992 enum iwl_wowlan_mlo_gtk_type key_type;
1993
1994 if (key->link_id < 0)
1995 return;
1996
1997 if (WARN_ON(key->link_id >= IEEE80211_MLD_MAX_NUM_LINKS ||
1998 key->keyidx >= 8))
1999 return;
2000
2001 if (WARN_ON(old_keys->key[key->link_id][key->keyidx]))
2002 return;
2003
2004 switch (key->cipher) {
2005 case WLAN_CIPHER_SUITE_CCMP:
2006 case WLAN_CIPHER_SUITE_GCMP:
2007 case WLAN_CIPHER_SUITE_GCMP_256:
2008 key_type = WOWLAN_MLO_GTK_KEY_TYPE_GTK;
2009 break;
2010 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2011 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2012 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2013 case WLAN_CIPHER_SUITE_AES_CMAC:
2014 if (key->keyidx == 4 || key->keyidx == 5) {
2015 key_type = WOWLAN_MLO_GTK_KEY_TYPE_IGTK;
2016 break;
2017 } else if (key->keyidx == 6 || key->keyidx == 7) {
2018 key_type = WOWLAN_MLO_GTK_KEY_TYPE_BIGTK;
2019 break;
2020 }
2021 return;
2022 default:
2023 /* ignore WEP/TKIP or unknown ciphers */
2024 return;
2025 }
2026
2027 old_keys->cipher[key->link_id][key_type] = key->cipher;
2028 old_keys->key[key->link_id][key->keyidx] = key;
2029 }
2030
iwl_mvm_mlo_gtk_rekey(struct iwl_wowlan_status_data * status,struct ieee80211_vif * vif,struct iwl_mvm * mvm)2031 static bool iwl_mvm_mlo_gtk_rekey(struct iwl_wowlan_status_data *status,
2032 struct ieee80211_vif *vif,
2033 struct iwl_mvm *mvm)
2034 {
2035 int i;
2036 struct iwl_mvm_d3_mlo_old_keys *old_keys;
2037 bool ret = true;
2038
2039 IWL_DEBUG_WOWLAN(mvm, "Num of MLO Keys: %d\n", status->num_mlo_keys);
2040 if (!status->num_mlo_keys)
2041 return true;
2042
2043 old_keys = kzalloc(sizeof(*old_keys), GFP_KERNEL);
2044 if (!old_keys)
2045 return false;
2046
2047 /* find the cipher for each mlo key */
2048 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_mlo_key_ciphers, old_keys);
2049
2050 for (i = 0; i < status->num_mlo_keys; i++) {
2051 struct iwl_wowlan_mlo_gtk *mlo_key = &status->mlo_keys[i];
2052 struct ieee80211_key_conf *key, *old_key;
2053 struct ieee80211_key_seq seq;
2054 struct {
2055 struct ieee80211_key_conf conf;
2056 u8 key[32];
2057 } conf = {};
2058 u16 flags = le16_to_cpu(mlo_key->flags);
2059 int j, link_id, key_id, key_type;
2060
2061 link_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_LINK_ID_MSK);
2062 key_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_KEY_ID_MSK);
2063 key_type = u16_get_bits(flags,
2064 WOWLAN_MLO_GTK_FLAG_KEY_TYPE_MSK);
2065
2066 if (!(vif->valid_links & BIT(link_id)))
2067 continue;
2068
2069 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS ||
2070 key_id >= 8 ||
2071 key_type >= WOWLAN_MLO_GTK_KEY_NUM_TYPES))
2072 continue;
2073
2074 conf.conf.cipher = old_keys->cipher[link_id][key_type];
2075 /* WARN_ON? */
2076 if (!conf.conf.cipher)
2077 continue;
2078
2079 conf.conf.keylen = 0;
2080 switch (conf.conf.cipher) {
2081 case WLAN_CIPHER_SUITE_CCMP:
2082 case WLAN_CIPHER_SUITE_GCMP:
2083 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2084 break;
2085 case WLAN_CIPHER_SUITE_GCMP_256:
2086 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
2087 break;
2088 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2089 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2090 break;
2091 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2092 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2093 break;
2094 case WLAN_CIPHER_SUITE_AES_CMAC:
2095 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2096 break;
2097 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2098 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2099 break;
2100 }
2101
2102 if (WARN_ON(!conf.conf.keylen ||
2103 conf.conf.keylen > sizeof(conf.key)))
2104 continue;
2105
2106 memcpy(conf.conf.key, mlo_key->key, conf.conf.keylen);
2107 conf.conf.keyidx = key_id;
2108
2109 old_key = old_keys->key[link_id][key_id];
2110 if (old_key) {
2111 IWL_DEBUG_WOWLAN(mvm,
2112 "Remove MLO key id %d, link id %d\n",
2113 key_id, link_id);
2114 ieee80211_remove_key(old_key);
2115 }
2116
2117 IWL_DEBUG_WOWLAN(mvm, "Add MLO key id %d, link id %d\n",
2118 key_id, link_id);
2119 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2120 if (WARN_ON(IS_ERR(key))) {
2121 ret = false;
2122 goto out;
2123 }
2124
2125 /*
2126 * mac80211 expects the pn in big-endian
2127 * also note that seq is a union of all cipher types
2128 * (ccmp, gcmp, cmac, gmac), and they all have the same
2129 * pn field (of length 6) so just copy it to ccmp.pn.
2130 */
2131 for (j = 5; j >= 0; j--)
2132 seq.ccmp.pn[5 - j] = mlo_key->pn[j];
2133
2134 /* group keys are non-QoS and use TID 0 */
2135 ieee80211_set_key_rx_seq(key, 0, &seq);
2136 }
2137
2138 out:
2139 kfree(old_keys);
2140 return ret;
2141 }
2142
iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data * status,struct ieee80211_vif * vif,struct iwl_mvm * mvm,u32 gtk_cipher)2143 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status,
2144 struct ieee80211_vif *vif,
2145 struct iwl_mvm *mvm, u32 gtk_cipher)
2146 {
2147 int i, j;
2148 struct ieee80211_key_conf *key;
2149 struct {
2150 struct ieee80211_key_conf conf;
2151 u8 key[32];
2152 } conf = {
2153 .conf.cipher = gtk_cipher,
2154 };
2155 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
2156
2157 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
2158 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
2159 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
2160 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
2161 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key));
2162
2163 switch (gtk_cipher) {
2164 case WLAN_CIPHER_SUITE_CCMP:
2165 case WLAN_CIPHER_SUITE_GCMP:
2166 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2167 break;
2168 case WLAN_CIPHER_SUITE_GCMP_256:
2169 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
2170 break;
2171 case WLAN_CIPHER_SUITE_TKIP:
2172 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
2173 break;
2174 default:
2175 WARN_ON(1);
2176 }
2177
2178 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) {
2179 if (!status->gtk[i].len)
2180 continue;
2181
2182 conf.conf.keyidx = status->gtk[i].id;
2183 IWL_DEBUG_WOWLAN(mvm,
2184 "Received from FW GTK cipher %d, key index %d\n",
2185 conf.conf.cipher, conf.conf.keyidx);
2186 memcpy(conf.conf.key, status->gtk[i].key,
2187 sizeof(status->gtk[i].key));
2188
2189 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2190 if (IS_ERR(key))
2191 return false;
2192
2193 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) {
2194 if (!status->gtk_seq[j].valid ||
2195 status->gtk_seq[j].key_id != key->keyidx)
2196 continue;
2197 iwl_mvm_set_key_rx_seq_idx(key, status, j);
2198 break;
2199 }
2200 WARN_ON(j == ARRAY_SIZE(status->gtk_seq));
2201 }
2202
2203 return true;
2204 }
2205
2206 static bool
iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data * status,struct ieee80211_vif * vif,u32 cipher,struct iwl_multicast_key_data * key_data)2207 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status,
2208 struct ieee80211_vif *vif, u32 cipher,
2209 struct iwl_multicast_key_data *key_data)
2210 {
2211 struct ieee80211_key_conf *key_config;
2212 struct {
2213 struct ieee80211_key_conf conf;
2214 u8 key[WOWLAN_KEY_MAX_SIZE];
2215 } conf = {
2216 .conf.cipher = cipher,
2217 .conf.keyidx = key_data->id,
2218 };
2219 struct ieee80211_key_seq seq;
2220 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
2221
2222 if (!key_data->len)
2223 return true;
2224
2225 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher);
2226
2227 switch (cipher) {
2228 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2229 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2230 break;
2231 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2232 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2233 break;
2234 case WLAN_CIPHER_SUITE_AES_CMAC:
2235 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2236 break;
2237 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2238 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2239 break;
2240 default:
2241 WARN_ON(1);
2242 }
2243 BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key));
2244 memcpy(conf.conf.key, key_data->key, conf.conf.keylen);
2245
2246 key_config = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2247 if (IS_ERR(key_config))
2248 return false;
2249 ieee80211_set_key_rx_seq(key_config, 0, &seq);
2250
2251 if (key_config->keyidx == 4 || key_config->keyidx == 5) {
2252 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2253 struct iwl_mvm_vif_link_info *mvm_link;
2254
2255 link_id = link_id < 0 ? 0 : link_id;
2256 mvm_link = mvmvif->link[link_id];
2257 mvm_link->igtk = key_config;
2258 }
2259
2260 return true;
2261 }
2262
iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm * mvm)2263 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm)
2264 {
2265 u8 notif_ver;
2266
2267 if (!fw_has_api(&mvm->fw->ucode_capa,
2268 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL))
2269 return 6;
2270
2271 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2272 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2273 WOWLAN_GET_STATUSES, 0);
2274 if (!notif_ver)
2275 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2276 WOWLAN_GET_STATUSES, 7);
2277
2278 return notif_ver;
2279 }
2280
iwl_mvm_setup_connection_keep(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_wowlan_status_data * status)2281 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
2282 struct ieee80211_vif *vif,
2283 struct iwl_wowlan_status_data *status)
2284 {
2285 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2286 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
2287 .mvm = mvm,
2288 .status = status,
2289 };
2290 int i;
2291 u32 disconnection_reasons =
2292 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
2293 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
2294
2295 if (!status || !vif->bss_conf.bssid)
2296 return false;
2297
2298 if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 ||
2299 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2300 WOWLAN_INFO_NOTIFICATION,
2301 0))
2302 gtkdata.igtk_support = true;
2303
2304 if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2305 WOWLAN_INFO_NOTIFICATION,
2306 0) >= 3)
2307 gtkdata.bigtk_support = true;
2308
2309 /* find last GTK that we used initially, if any */
2310 ieee80211_iter_keys(mvm->hw, vif,
2311 iwl_mvm_d3_find_last_keys, >kdata);
2312 /* not trying to keep connections with MFP/unhandled ciphers */
2313 if (gtkdata.unhandled_cipher)
2314 return false;
2315 if (!gtkdata.num_keys)
2316 goto out;
2317
2318 /*
2319 * invalidate all other GTKs that might still exist and update
2320 * the one that we used
2321 */
2322 ieee80211_iter_keys(mvm->hw, vif,
2323 iwl_mvm_d3_update_keys, >kdata);
2324
2325 if (status->num_of_gtk_rekeys) {
2326 __be64 replay_ctr = cpu_to_be64(status->replay_ctr);
2327
2328 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
2329 status->num_of_gtk_rekeys);
2330
2331 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher))
2332 return false;
2333
2334 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2335 gtkdata.igtk_cipher,
2336 &status->igtk))
2337 return false;
2338
2339 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) {
2340 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2341 gtkdata.bigtk_cipher,
2342 &status->bigtk[i]))
2343 return false;
2344 }
2345
2346 if (!iwl_mvm_mlo_gtk_rekey(status, vif, mvm))
2347 return false;
2348
2349 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
2350 (void *)&replay_ctr, GFP_KERNEL);
2351 }
2352
2353 out:
2354 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2355 WOWLAN_GET_STATUSES,
2356 IWL_FW_CMD_VER_UNKNOWN) < 10) {
2357 mvmvif->seqno_valid = true;
2358 /* +0x10 because the set API expects next-to-use, not last-used */
2359 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
2360 }
2361
2362 if (status->wakeup_reasons & disconnection_reasons)
2363 return false;
2364
2365 return true;
2366 }
2367
iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data * status,struct iwl_wowlan_gtk_status_v2 * data)2368 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2369 struct iwl_wowlan_gtk_status_v2 *data)
2370 {
2371 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key));
2372 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2373 sizeof(data->tkip_mic_key) >
2374 sizeof(status->gtk[0].key));
2375
2376 status->gtk[0].len = data->key_len;
2377 status->gtk[0].flags = data->key_flags;
2378
2379 memcpy(status->gtk[0].key, data->key, sizeof(data->key));
2380
2381 /* if it's as long as the TKIP encryption key, copy MIC key */
2382 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2383 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2384 data->tkip_mic_key, sizeof(data->tkip_mic_key));
2385 }
2386
iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data * status,struct iwl_wowlan_gtk_status_v3 * data)2387 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2388 struct iwl_wowlan_gtk_status_v3 *data)
2389 {
2390 int data_idx, status_idx = 0;
2391
2392 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key));
2393 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2394 sizeof(data[0].tkip_mic_key) >
2395 sizeof(status->gtk[0].key));
2396 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM);
2397 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) {
2398 if (!(data[data_idx].key_len))
2399 continue;
2400 status->gtk[status_idx].len = data[data_idx].key_len;
2401 status->gtk[status_idx].flags = data[data_idx].key_flags;
2402 status->gtk[status_idx].id = status->gtk[status_idx].flags &
2403 IWL_WOWLAN_GTK_IDX_MASK;
2404
2405 memcpy(status->gtk[status_idx].key, data[data_idx].key,
2406 sizeof(data[data_idx].key));
2407
2408 /* if it's as long as the TKIP encryption key, copy MIC key */
2409 if (status->gtk[status_idx].len ==
2410 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2411 memcpy(status->gtk[status_idx].key +
2412 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2413 data[data_idx].tkip_mic_key,
2414 sizeof(data[data_idx].tkip_mic_key));
2415 status_idx++;
2416 }
2417 }
2418
iwl_mvm_convert_igtk(struct iwl_wowlan_status_data * status,struct iwl_wowlan_igtk_status * data)2419 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2420 struct iwl_wowlan_igtk_status *data)
2421 {
2422 int i;
2423
2424 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2425 BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn));
2426
2427 if (!data->key_len)
2428 return;
2429
2430 status->igtk.len = data->key_len;
2431 status->igtk.flags = data->key_flags;
2432 status->igtk.id = u32_get_bits(data->key_flags,
2433 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2434 + WOWLAN_IGTK_MIN_INDEX;
2435
2436 memcpy(status->igtk.key, data->key, sizeof(data->key));
2437
2438 /* mac80211 expects big endian for memcmp() to work, convert */
2439 for (i = 0; i < sizeof(data->ipn); i++)
2440 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1];
2441 }
2442
iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data * status,const struct iwl_wowlan_igtk_status * data)2443 static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status,
2444 const struct iwl_wowlan_igtk_status *data)
2445 {
2446 int data_idx, status_idx = 0;
2447
2448 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM);
2449
2450 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) {
2451 if (!data[data_idx].key_len)
2452 continue;
2453
2454 status->bigtk[status_idx].len = data[data_idx].key_len;
2455 status->bigtk[status_idx].flags = data[data_idx].key_flags;
2456 status->bigtk[status_idx].id =
2457 u32_get_bits(data[data_idx].key_flags,
2458 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2459 + WOWLAN_BIGTK_MIN_INDEX;
2460
2461 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) <
2462 sizeof(data[data_idx].key));
2463 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) <
2464 sizeof(data[data_idx].ipn));
2465
2466 memcpy(status->bigtk[status_idx].key, data[data_idx].key,
2467 sizeof(data[data_idx].key));
2468 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn,
2469 sizeof(data[data_idx].ipn));
2470 status_idx++;
2471 }
2472 }
2473
iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm * mvm,struct iwl_wowlan_info_notif * data,struct iwl_wowlan_status_data * status,u32 len,bool has_mlo_keys)2474 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
2475 struct iwl_wowlan_info_notif *data,
2476 struct iwl_wowlan_status_data *status,
2477 u32 len, bool has_mlo_keys)
2478 {
2479 u32 i;
2480 u32 expected_len = sizeof(*data);
2481
2482 if (!data) {
2483 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2484 status = NULL;
2485 return;
2486 }
2487
2488 if (has_mlo_keys)
2489 expected_len += (data->num_mlo_link_keys *
2490 sizeof(status->mlo_keys[0]));
2491
2492 if (len < expected_len) {
2493 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2494 status = NULL;
2495 return;
2496 }
2497
2498 if (mvm->fast_resume)
2499 return;
2500
2501 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2502 iwl_mvm_convert_gtk_v3(status, data->gtk);
2503 iwl_mvm_convert_igtk(status, &data->igtk[0]);
2504 iwl_mvm_convert_bigtk(status, data->bigtk);
2505 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2506 status->pattern_number = le16_to_cpu(data->pattern_number);
2507 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2508 status->qos_seq_ctr[i] =
2509 le16_to_cpu(data->qos_seq_ctr[i]);
2510 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2511 status->num_of_gtk_rekeys =
2512 le32_to_cpu(data->num_of_gtk_rekeys);
2513 status->received_beacons = le32_to_cpu(data->received_beacons);
2514 status->tid_tear_down = data->tid_tear_down;
2515
2516 if (has_mlo_keys && data->num_mlo_link_keys) {
2517 status->num_mlo_keys = data->num_mlo_link_keys;
2518 if (IWL_FW_CHECK(mvm,
2519 status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS,
2520 "Too many mlo keys: %d, max %d\n",
2521 status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS))
2522 status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS;
2523 memcpy(status->mlo_keys, data->mlo_gtks,
2524 status->num_mlo_keys * sizeof(status->mlo_keys[0]));
2525 }
2526 }
2527
2528 static void
iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm * mvm,struct iwl_wowlan_info_notif_v2 * data,struct iwl_wowlan_status_data * status,u32 len)2529 iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm,
2530 struct iwl_wowlan_info_notif_v2 *data,
2531 struct iwl_wowlan_status_data *status,
2532 u32 len)
2533 {
2534 u32 i;
2535
2536 if (!data) {
2537 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2538 status = NULL;
2539 return;
2540 }
2541
2542 if (len < sizeof(*data)) {
2543 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2544 status = NULL;
2545 return;
2546 }
2547
2548 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2549 iwl_mvm_convert_gtk_v3(status, data->gtk);
2550 iwl_mvm_convert_igtk(status, &data->igtk[0]);
2551 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2552 status->pattern_number = le16_to_cpu(data->pattern_number);
2553 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2554 status->qos_seq_ctr[i] =
2555 le16_to_cpu(data->qos_seq_ctr[i]);
2556 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2557 status->num_of_gtk_rekeys =
2558 le32_to_cpu(data->num_of_gtk_rekeys);
2559 status->received_beacons = le32_to_cpu(data->received_beacons);
2560 status->tid_tear_down = data->tid_tear_down;
2561 }
2562
2563 /* Occasionally, templates would be nice. This is one of those times ... */
2564 #define iwl_mvm_parse_wowlan_status_common(_ver) \
2565 static struct iwl_wowlan_status_data * \
2566 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
2567 struct iwl_wowlan_status_ ##_ver *data,\
2568 int len) \
2569 { \
2570 struct iwl_wowlan_status_data *status; \
2571 int data_size, i; \
2572 \
2573 if (len < sizeof(*data)) { \
2574 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
2575 return NULL; \
2576 } \
2577 \
2578 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
2579 if (len != sizeof(*data) + data_size) { \
2580 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
2581 return NULL; \
2582 } \
2583 \
2584 status = kzalloc(sizeof(*status), GFP_KERNEL); \
2585 if (!status) \
2586 return NULL; \
2587 \
2588 /* copy all the common fields */ \
2589 status->replay_ctr = le64_to_cpu(data->replay_ctr); \
2590 status->pattern_number = le16_to_cpu(data->pattern_number); \
2591 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \
2592 for (i = 0; i < 8; i++) \
2593 status->qos_seq_ctr[i] = \
2594 le16_to_cpu(data->qos_seq_ctr[i]); \
2595 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \
2596 status->num_of_gtk_rekeys = \
2597 le32_to_cpu(data->num_of_gtk_rekeys); \
2598 status->received_beacons = le32_to_cpu(data->received_beacons); \
2599 status->wake_packet_length = \
2600 le32_to_cpu(data->wake_packet_length); \
2601 status->wake_packet_bufsize = \
2602 le32_to_cpu(data->wake_packet_bufsize); \
2603 if (status->wake_packet_bufsize) { \
2604 status->wake_packet = \
2605 kmemdup(data->wake_packet, \
2606 status->wake_packet_bufsize, \
2607 GFP_KERNEL); \
2608 if (!status->wake_packet) { \
2609 kfree(status); \
2610 return NULL; \
2611 } \
2612 } else { \
2613 status->wake_packet = NULL; \
2614 } \
2615 \
2616 return status; \
2617 }
2618
2619 iwl_mvm_parse_wowlan_status_common(v6)
iwl_mvm_parse_wowlan_status_common(v7)2620 iwl_mvm_parse_wowlan_status_common(v7)
2621 iwl_mvm_parse_wowlan_status_common(v9)
2622 iwl_mvm_parse_wowlan_status_common(v12)
2623
2624 static struct iwl_wowlan_status_data *
2625 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2626 {
2627 struct iwl_wowlan_status_data *status;
2628 struct iwl_wowlan_get_status_cmd get_status_cmd = {
2629 .sta_id = cpu_to_le32(sta_id),
2630 };
2631 struct iwl_host_cmd cmd = {
2632 .id = WOWLAN_GET_STATUSES,
2633 .flags = CMD_WANT_SKB,
2634 .data = { &get_status_cmd, },
2635 .len = { sizeof(get_status_cmd), },
2636 };
2637 int ret, len;
2638 u8 notif_ver;
2639 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
2640 IWL_FW_CMD_VER_UNKNOWN);
2641
2642 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2643 cmd.len[0] = 0;
2644
2645 lockdep_assert_held(&mvm->mutex);
2646
2647 ret = iwl_mvm_send_cmd(mvm, &cmd);
2648 if (ret) {
2649 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2650 return ERR_PTR(ret);
2651 }
2652
2653 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2654
2655 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2656 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm);
2657
2658 if (notif_ver < 7) {
2659 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2660
2661 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
2662 if (!status)
2663 goto out_free_resp;
2664
2665 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
2666 sizeof(status->gtk[0].key));
2667 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2668 sizeof(v6->gtk.tkip_mic_key) >
2669 sizeof(status->gtk[0].key));
2670
2671 /* copy GTK info to the right place */
2672 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
2673 sizeof(v6->gtk.decrypt_key));
2674 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2675 v6->gtk.tkip_mic_key,
2676 sizeof(v6->gtk.tkip_mic_key));
2677
2678 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2679
2680 /* hardcode the key length to 16 since v6 only supports 16 */
2681 status->gtk[0].len = 16;
2682
2683 /*
2684 * The key index only uses 2 bits (values 0 to 3) and
2685 * we always set bit 7 which means this is the
2686 * currently used key.
2687 */
2688 status->gtk[0].flags = v6->gtk.key_index | BIT(7);
2689 } else if (notif_ver == 7) {
2690 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2691
2692 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
2693 if (!status)
2694 goto out_free_resp;
2695
2696 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2697 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
2698 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
2699 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
2700 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
2701
2702 /* these three command versions have same layout and size, the
2703 * difference is only in a few not used (reserved) fields.
2704 */
2705 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
2706 if (!status)
2707 goto out_free_resp;
2708
2709 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2710 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
2711 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2712
2713 status->tid_tear_down = v9->tid_tear_down;
2714 } else if (notif_ver == 12) {
2715 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2716
2717 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
2718 if (!status)
2719 goto out_free_resp;
2720
2721 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2722 iwl_mvm_convert_gtk_v3(status, v12->gtk);
2723 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2724
2725 status->tid_tear_down = v12->tid_tear_down;
2726 } else {
2727 IWL_ERR(mvm,
2728 "Firmware advertises unknown WoWLAN status response %d!\n",
2729 notif_ver);
2730 status = NULL;
2731 }
2732
2733 out_free_resp:
2734 iwl_free_resp(&cmd);
2735 return status;
2736 }
2737
2738 /* releases the MVM mutex */
iwl_mvm_query_wakeup_reasons(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_wowlan_status_data * status)2739 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
2740 struct ieee80211_vif *vif,
2741 struct iwl_wowlan_status_data *status)
2742 {
2743 int i;
2744 bool keep = false;
2745 struct iwl_mvm_sta *mvm_ap_sta;
2746 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2747 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
2748 struct iwl_mvm_vif_link_info *mvm_link = mvmvif->link[link_id];
2749
2750 if (WARN_ON(!mvm_link))
2751 goto out_unlock;
2752
2753 if (!status)
2754 goto out_unlock;
2755
2756 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
2757 status->wakeup_reasons);
2758
2759 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, mvm_link->ap_sta_id);
2760 if (!mvm_ap_sta)
2761 goto out_unlock;
2762
2763 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
2764 u16 seq = status->qos_seq_ctr[i];
2765 /* firmware stores last-used value, we store next value */
2766 seq += 0x10;
2767 mvm_ap_sta->tid_data[i].seq_number = seq;
2768 }
2769
2770 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
2771 i = mvm->offload_tid;
2772 iwl_trans_set_q_ptrs(mvm->trans,
2773 mvm_ap_sta->tid_data[i].txq_id,
2774 mvm_ap_sta->tid_data[i].seq_number >> 4);
2775 }
2776
2777 iwl_mvm_report_wakeup_reasons(mvm, vif, status);
2778
2779 keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
2780 out_unlock:
2781 mutex_unlock(&mvm->mutex);
2782 return keep;
2783 }
2784
2785 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2786 IWL_SCAN_MAX_PROFILES)
2787
2788 struct iwl_mvm_nd_results {
2789 u32 matched_profiles;
2790 u8 matches[ND_QUERY_BUF_LEN];
2791 };
2792
2793 static int
iwl_mvm_netdetect_query_results(struct iwl_mvm * mvm,struct iwl_mvm_nd_results * results)2794 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2795 struct iwl_mvm_nd_results *results)
2796 {
2797 struct iwl_scan_offload_match_info *query;
2798 struct iwl_host_cmd cmd = {
2799 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2800 .flags = CMD_WANT_SKB,
2801 };
2802 int ret, len;
2803 size_t query_len, matches_len;
2804 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
2805
2806 ret = iwl_mvm_send_cmd(mvm, &cmd);
2807 if (ret) {
2808 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
2809 return ret;
2810 }
2811
2812 if (fw_has_api(&mvm->fw->ucode_capa,
2813 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2814 query_len = sizeof(struct iwl_scan_offload_match_info);
2815 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2816 max_profiles;
2817 } else {
2818 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2819 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
2820 max_profiles;
2821 }
2822
2823 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2824 if (len < query_len) {
2825 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
2826 ret = -EIO;
2827 goto out_free_resp;
2828 }
2829
2830 query = (void *)cmd.resp_pkt->data;
2831
2832 results->matched_profiles = le32_to_cpu(query->matched_profiles);
2833 memcpy(results->matches, query->matches, matches_len);
2834
2835 #ifdef CONFIG_IWLWIFI_DEBUGFS
2836 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2837 #endif
2838
2839 out_free_resp:
2840 iwl_free_resp(&cmd);
2841 return ret;
2842 }
2843
iwl_mvm_query_num_match_chans(struct iwl_mvm * mvm,struct iwl_mvm_nd_results * results,int idx)2844 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2845 struct iwl_mvm_nd_results *results,
2846 int idx)
2847 {
2848 int n_chans = 0, i;
2849
2850 if (fw_has_api(&mvm->fw->ucode_capa,
2851 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2852 struct iwl_scan_offload_profile_match *matches =
2853 (void *)results->matches;
2854
2855 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2856 n_chans += hweight8(matches[idx].matching_channels[i]);
2857 } else {
2858 struct iwl_scan_offload_profile_match_v1 *matches =
2859 (void *)results->matches;
2860
2861 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2862 n_chans += hweight8(matches[idx].matching_channels[i]);
2863 }
2864
2865 return n_chans;
2866 }
2867
iwl_mvm_query_set_freqs(struct iwl_mvm * mvm,struct iwl_mvm_nd_results * results,struct cfg80211_wowlan_nd_match * match,int idx)2868 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2869 struct iwl_mvm_nd_results *results,
2870 struct cfg80211_wowlan_nd_match *match,
2871 int idx)
2872 {
2873 int i;
2874
2875 if (fw_has_api(&mvm->fw->ucode_capa,
2876 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2877 struct iwl_scan_offload_profile_match *matches =
2878 (void *)results->matches;
2879
2880 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2881 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2882 match->channels[match->n_channels++] =
2883 mvm->nd_channels[i]->center_freq;
2884 } else {
2885 struct iwl_scan_offload_profile_match_v1 *matches =
2886 (void *)results->matches;
2887
2888 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2889 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2890 match->channels[match->n_channels++] =
2891 mvm->nd_channels[i]->center_freq;
2892 }
2893 }
2894
2895 /**
2896 * enum iwl_d3_notif - d3 notifications
2897 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2898 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received
2899 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received
2900 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received
2901 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received
2902 */
2903 enum iwl_d3_notif {
2904 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0),
2905 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1),
2906 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2),
2907 IWL_D3_ND_MATCH_INFO = BIT(3),
2908 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4)
2909 };
2910
2911 /* manage d3 resume data */
2912 struct iwl_d3_data {
2913 struct iwl_wowlan_status_data *status;
2914 bool test;
2915 u32 d3_end_flags;
2916 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */
2917 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */
2918 struct iwl_mvm_nd_results *nd_results;
2919 bool nd_results_valid;
2920 };
2921
iwl_mvm_query_netdetect_reasons(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_d3_data * d3_data)2922 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
2923 struct ieee80211_vif *vif,
2924 struct iwl_d3_data *d3_data)
2925 {
2926 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2927 struct cfg80211_wowlan_wakeup wakeup = {
2928 .pattern_idx = -1,
2929 };
2930 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
2931 unsigned long matched_profiles;
2932 u32 reasons = 0;
2933 int i, n_matches, ret;
2934
2935 if (WARN_ON(!d3_data || !d3_data->status))
2936 goto out;
2937
2938 reasons = d3_data->status->wakeup_reasons;
2939
2940 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2941 wakeup.rfkill_release = true;
2942
2943 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2944 goto out;
2945
2946 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2947 WOWLAN_INFO_NOTIFICATION, 0)) {
2948 IWL_INFO(mvm, "Query FW for ND results\n");
2949 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results);
2950
2951 } else {
2952 IWL_INFO(mvm, "Notification based ND results\n");
2953 ret = d3_data->nd_results_valid ? 0 : -1;
2954 }
2955
2956 if (ret || !d3_data->nd_results->matched_profiles) {
2957 wakeup_report = NULL;
2958 goto out;
2959 }
2960
2961 matched_profiles = d3_data->nd_results->matched_profiles;
2962 if (mvm->n_nd_match_sets) {
2963 n_matches = hweight_long(matched_profiles);
2964 } else {
2965 IWL_ERR(mvm, "no net detect match information available\n");
2966 n_matches = 0;
2967 }
2968
2969 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
2970 GFP_KERNEL);
2971 if (!net_detect || !n_matches)
2972 goto out_report_nd;
2973
2974 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2975 struct cfg80211_wowlan_nd_match *match;
2976 int idx, n_channels = 0;
2977
2978 n_channels = iwl_mvm_query_num_match_chans(mvm,
2979 d3_data->nd_results,
2980 i);
2981
2982 match = kzalloc(struct_size(match, channels, n_channels),
2983 GFP_KERNEL);
2984 if (!match)
2985 goto out_report_nd;
2986
2987 net_detect->matches[net_detect->n_matches++] = match;
2988
2989 /* We inverted the order of the SSIDs in the scan
2990 * request, so invert the index here.
2991 */
2992 idx = mvm->n_nd_match_sets - i - 1;
2993 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2994 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
2995 match->ssid.ssid_len);
2996
2997 if (mvm->n_nd_channels < n_channels)
2998 continue;
2999
3000 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i);
3001 }
3002
3003 out_report_nd:
3004 wakeup.net_detect = net_detect;
3005 out:
3006 iwl_mvm_free_nd(mvm);
3007
3008 mutex_unlock(&mvm->mutex);
3009 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
3010
3011 if (net_detect) {
3012 for (i = 0; i < net_detect->n_matches; i++)
3013 kfree(net_detect->matches[i]);
3014 kfree(net_detect);
3015 }
3016 }
3017
iwl_mvm_d3_disconnect_iter(void * data,u8 * mac,struct ieee80211_vif * vif)3018 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
3019 struct ieee80211_vif *vif)
3020 {
3021 /* skip the one we keep connection on */
3022 if (data == vif)
3023 return;
3024
3025 if (vif->type == NL80211_IFTYPE_STATION)
3026 ieee80211_resume_disconnect(vif);
3027 }
3028
iwl_mvm_rt_status(struct iwl_trans * trans,u32 base,u32 * err_id)3029 static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
3030 {
3031 struct error_table_start {
3032 /* cf. struct iwl_error_event_table */
3033 u32 valid;
3034 __le32 err_id;
3035 } err_info;
3036
3037 if (!base)
3038 return false;
3039
3040 iwl_trans_read_mem_bytes(trans, base,
3041 &err_info, sizeof(err_info));
3042 if (err_info.valid && err_id)
3043 *err_id = le32_to_cpu(err_info.err_id);
3044
3045 return !!err_info.valid;
3046 }
3047
iwl_mvm_check_rt_status(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3048 static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
3049 struct ieee80211_vif *vif)
3050 {
3051 u32 err_id;
3052
3053 /* check for lmac1 error */
3054 if (iwl_mvm_rt_status(mvm->trans,
3055 mvm->trans->dbg.lmac_error_event_table[0],
3056 &err_id)) {
3057 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN && vif) {
3058 struct cfg80211_wowlan_wakeup wakeup = {
3059 .rfkill_release = true,
3060 };
3061 ieee80211_report_wowlan_wakeup(vif, &wakeup,
3062 GFP_KERNEL);
3063 }
3064 return true;
3065 }
3066
3067 /* check if we have lmac2 set and check for error */
3068 if (iwl_mvm_rt_status(mvm->trans,
3069 mvm->trans->dbg.lmac_error_event_table[1], NULL))
3070 return true;
3071
3072 /* check for umac error */
3073 if (iwl_mvm_rt_status(mvm->trans,
3074 mvm->trans->dbg.umac_error_event_table, NULL))
3075 return true;
3076
3077 return false;
3078 }
3079
3080 /*
3081 * This function assumes:
3082 * 1. The mutex is already held.
3083 * 2. The callee functions unlock the mutex.
3084 */
3085 static bool
iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_d3_data * d3_data)3086 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
3087 struct ieee80211_vif *vif,
3088 struct iwl_d3_data *d3_data)
3089 {
3090 lockdep_assert_held(&mvm->mutex);
3091
3092 /* if FW uses status notification, status shouldn't be NULL here */
3093 if (!d3_data->status) {
3094 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3095 u8 sta_id = mvm->net_detect ? IWL_MVM_INVALID_STA :
3096 mvmvif->deflink.ap_sta_id;
3097
3098 /* bug - FW with MLO has status notification */
3099 WARN_ON(ieee80211_vif_is_mld(vif));
3100
3101 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id);
3102 }
3103
3104 if (mvm->net_detect) {
3105 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data);
3106 } else {
3107 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
3108 d3_data->status);
3109
3110 #ifdef CONFIG_IWLWIFI_DEBUGFS
3111 if (keep)
3112 mvm->keep_vif = vif;
3113 #endif
3114
3115 return keep;
3116 }
3117 return false;
3118 }
3119
3120 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
3121 IWL_WOWLAN_WAKEUP_BY_PATTERN | \
3122 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\
3123 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\
3124 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\
3125 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD)
3126
iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm * mvm,struct iwl_wowlan_wake_pkt_notif * notif,struct iwl_wowlan_status_data * status,u32 len)3127 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm,
3128 struct iwl_wowlan_wake_pkt_notif *notif,
3129 struct iwl_wowlan_status_data *status,
3130 u32 len)
3131 {
3132 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length);
3133
3134 if (len < sizeof(*notif)) {
3135 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n");
3136 return -EIO;
3137 }
3138
3139 if (WARN_ON(!status)) {
3140 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n");
3141 return -EIO;
3142 }
3143
3144 if (WARN_ON(!(status->wakeup_reasons &
3145 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) {
3146 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n",
3147 status->wakeup_reasons);
3148 return -EIO;
3149 }
3150
3151 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet);
3152
3153 /* data_size got the padding from the notification, remove it. */
3154 if (packet_len < data_size)
3155 data_size = packet_len;
3156
3157 status->wake_packet = kmemdup(notif->wake_packet, data_size,
3158 GFP_ATOMIC);
3159
3160 if (!status->wake_packet)
3161 return -ENOMEM;
3162
3163 status->wake_packet_length = packet_len;
3164 status->wake_packet_bufsize = data_size;
3165
3166 return 0;
3167 }
3168
iwl_mvm_nd_match_info_handler(struct iwl_mvm * mvm,struct iwl_d3_data * d3_data,struct iwl_scan_offload_match_info * notif,u32 len)3169 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
3170 struct iwl_d3_data *d3_data,
3171 struct iwl_scan_offload_match_info *notif,
3172 u32 len)
3173 {
3174 struct iwl_wowlan_status_data *status = d3_data->status;
3175 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
3176 struct iwl_mvm_nd_results *results = d3_data->nd_results;
3177 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) *
3178 iwl_umac_scan_get_max_profiles(mvm->fw);
3179
3180 if (IS_ERR_OR_NULL(vif))
3181 return;
3182
3183 if (len < sizeof(struct iwl_scan_offload_match_info)) {
3184 IWL_ERR(mvm, "Invalid scan match info notification\n");
3185 return;
3186 }
3187
3188 if (!mvm->net_detect) {
3189 IWL_ERR(mvm, "Unexpected scan match info notification\n");
3190 return;
3191 }
3192
3193 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
3194 IWL_ERR(mvm,
3195 "Ignore scan match info notification: no reason\n");
3196 return;
3197 }
3198
3199 #ifdef CONFIG_IWLWIFI_DEBUGFS
3200 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done);
3201 #endif
3202
3203 results->matched_profiles = le32_to_cpu(notif->matched_profiles);
3204 IWL_INFO(mvm, "number of matched profiles=%u\n",
3205 results->matched_profiles);
3206
3207 if (results->matched_profiles) {
3208 memcpy(results->matches, notif->matches, matches_len);
3209 d3_data->nd_results_valid = true;
3210 }
3211
3212 /* no scan should be active at this point */
3213 mvm->scan_status = 0;
3214 for (i = 0; i < mvm->max_scans; i++)
3215 mvm->scan_uid_status[i] = 0;
3216 }
3217
iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)3218 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
3219 struct iwl_rx_packet *pkt, void *data)
3220 {
3221 struct iwl_mvm *mvm =
3222 container_of(notif_wait, struct iwl_mvm, notif_wait);
3223 struct iwl_d3_data *d3_data = data;
3224 u32 len = iwl_rx_packet_payload_len(pkt);
3225 int ret;
3226 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
3227 PROT_OFFLOAD_GROUP,
3228 WOWLAN_INFO_NOTIFICATION,
3229 IWL_FW_CMD_VER_UNKNOWN);
3230
3231
3232 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
3233 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
3234
3235 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
3236 /* We might get two notifications due to dual bss */
3237 IWL_DEBUG_WOWLAN(mvm,
3238 "Got additional wowlan info notification\n");
3239 break;
3240 }
3241
3242 if (wowlan_info_ver < 2) {
3243 struct iwl_wowlan_info_notif_v1 *notif_v1 =
3244 (void *)pkt->data;
3245 struct iwl_wowlan_info_notif_v2 *notif_v2;
3246
3247 notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC);
3248
3249 if (!notif_v2)
3250 return false;
3251
3252 notif_v2->tid_tear_down = notif_v1->tid_tear_down;
3253 notif_v2->station_id = notif_v1->station_id;
3254 memset_after(notif_v2, 0, station_id);
3255 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3256 d3_data->status,
3257 len);
3258 kfree(notif_v2);
3259
3260 } else if (wowlan_info_ver == 2) {
3261 struct iwl_wowlan_info_notif_v2 *notif_v2 =
3262 (void *)pkt->data;
3263
3264 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3265 d3_data->status,
3266 len);
3267 } else {
3268 struct iwl_wowlan_info_notif *notif =
3269 (void *)pkt->data;
3270
3271 iwl_mvm_parse_wowlan_info_notif(mvm, notif,
3272 d3_data->status, len,
3273 wowlan_info_ver > 3);
3274 }
3275
3276 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
3277
3278 if (d3_data->status &&
3279 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT)
3280 /* We are supposed to get also wake packet notif */
3281 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3282
3283 break;
3284 }
3285 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): {
3286 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data;
3287
3288 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) {
3289 /* We shouldn't get two wake packet notifications */
3290 IWL_ERR(mvm,
3291 "Got additional wowlan wake packet notification\n");
3292 } else {
3293 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3294 len = iwl_rx_packet_payload_len(pkt);
3295 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif,
3296 d3_data->status,
3297 len);
3298 if (ret)
3299 IWL_ERR(mvm,
3300 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n");
3301 }
3302
3303 break;
3304 }
3305 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): {
3306 struct iwl_scan_offload_match_info *notif = (void *)pkt->data;
3307
3308 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) {
3309 IWL_ERR(mvm,
3310 "Got additional netdetect match info\n");
3311 break;
3312 }
3313
3314 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO;
3315
3316 /* explicitly set this in the 'expected' as well */
3317 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO;
3318
3319 len = iwl_rx_packet_payload_len(pkt);
3320 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len);
3321 break;
3322 }
3323 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): {
3324 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data;
3325
3326 d3_data->d3_end_flags = __le32_to_cpu(notif->flags);
3327 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF;
3328
3329 break;
3330 }
3331 default:
3332 WARN_ON(1);
3333 }
3334
3335 return d3_data->notif_received == d3_data->notif_expected;
3336 }
3337
iwl_mvm_resume_firmware(struct iwl_mvm * mvm,bool test)3338 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test)
3339 {
3340 int ret;
3341 enum iwl_d3_status d3_status;
3342 struct iwl_host_cmd cmd = {
3343 .id = D0I3_END_CMD,
3344 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
3345 };
3346 bool reset = fw_has_capa(&mvm->fw->ucode_capa,
3347 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3348
3349 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset);
3350 if (ret)
3351 return ret;
3352
3353 if (d3_status != IWL_D3_STATUS_ALIVE) {
3354 IWL_INFO(mvm, "Device was reset during suspend\n");
3355 return -ENOENT;
3356 }
3357
3358 /*
3359 * We should trigger resume flow using command only for 22000 family
3360 * AX210 and above don't need the command since they have
3361 * the doorbell interrupt.
3362 */
3363 if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 &&
3364 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) {
3365 ret = iwl_mvm_send_cmd(mvm, &cmd);
3366 if (ret < 0)
3367 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
3368 ret);
3369 }
3370
3371 return ret;
3372 }
3373
3374 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 3)
3375
iwl_mvm_d3_notif_wait(struct iwl_mvm * mvm,struct iwl_d3_data * d3_data)3376 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
3377 struct iwl_d3_data *d3_data)
3378 {
3379 static const u16 d3_resume_notif[] = {
3380 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION),
3381 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION),
3382 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF),
3383 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3384 };
3385 static const u16 d3_fast_resume_notif[] = {
3386 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3387 };
3388 struct iwl_notification_wait wait_d3_notif;
3389 int ret;
3390
3391 if (mvm->fast_resume)
3392 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3393 d3_fast_resume_notif,
3394 ARRAY_SIZE(d3_fast_resume_notif),
3395 iwl_mvm_wait_d3_notif, d3_data);
3396 else
3397 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3398 d3_resume_notif,
3399 ARRAY_SIZE(d3_resume_notif),
3400 iwl_mvm_wait_d3_notif, d3_data);
3401
3402 ret = iwl_mvm_resume_firmware(mvm, d3_data->test);
3403 if (ret) {
3404 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
3405 return ret;
3406 }
3407
3408 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
3409 IWL_MVM_D3_NOTIF_TIMEOUT);
3410 }
3411
iwl_mvm_d3_resume_notif_based(struct iwl_mvm * mvm)3412 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm)
3413 {
3414 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3415 WOWLAN_INFO_NOTIFICATION, 0) &&
3416 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3417 WOWLAN_WAKE_PKT_NOTIFICATION, 0) &&
3418 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3419 D3_END_NOTIFICATION, 0);
3420 }
3421
__iwl_mvm_resume(struct iwl_mvm * mvm,bool test)3422 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
3423 {
3424 struct ieee80211_vif *vif = NULL;
3425 int ret = 1;
3426 struct iwl_mvm_nd_results results = {};
3427 struct iwl_d3_data d3_data = {
3428 .test = test,
3429 .notif_expected =
3430 IWL_D3_NOTIF_WOWLAN_INFO |
3431 IWL_D3_NOTIF_D3_END_NOTIF,
3432 .nd_results_valid = false,
3433 .nd_results = &results,
3434 };
3435 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3436 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3437 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
3438 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
3439 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
3440 bool keep = false;
3441
3442 mutex_lock(&mvm->mutex);
3443
3444 /* Apparently, the device went away and device_powered_off() was called,
3445 * don't even try to read the rt_status, the device is currently
3446 * inaccessible.
3447 */
3448 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
3449 IWL_INFO(mvm,
3450 "Can't resume, device_powered_off() was called during wowlan\n");
3451 goto err;
3452 }
3453
3454 mvm->last_reset_or_resume_time_jiffies = jiffies;
3455
3456 /* get the BSS vif pointer again */
3457 vif = iwl_mvm_get_bss_vif(mvm);
3458 if (IS_ERR_OR_NULL(vif))
3459 goto err;
3460
3461 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3462
3463 if (iwl_mvm_check_rt_status(mvm, vif)) {
3464 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3465 iwl_mvm_dump_nic_error_log(mvm);
3466 iwl_dbg_tlv_time_point(&mvm->fwrt,
3467 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3468 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3469 false, 0);
3470 ret = 1;
3471 goto err;
3472 }
3473
3474 if (resume_notif_based) {
3475 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
3476 if (!d3_data.status) {
3477 IWL_ERR(mvm, "Failed to allocate wowlan status\n");
3478 ret = -ENOMEM;
3479 goto err;
3480 }
3481
3482 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3483 if (ret)
3484 goto err;
3485 } else {
3486 ret = iwl_mvm_resume_firmware(mvm, test);
3487 if (ret < 0)
3488 goto err;
3489 }
3490
3491 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN);
3492
3493 /* after the successful handshake, we're out of D3 */
3494 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3495
3496 /* when reset is required we can't send these following commands */
3497 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)
3498 goto query_wakeup_reasons;
3499
3500 /*
3501 * Query the current location and source from the D3 firmware so we
3502 * can play it back when we re-intiailize the D0 firmware
3503 */
3504 iwl_mvm_update_changed_regdom(mvm);
3505
3506 /* Re-configure PPAG settings */
3507 iwl_mvm_ppag_send_cmd(mvm);
3508
3509 if (!unified_image)
3510 /* Re-configure default SAR profile */
3511 iwl_mvm_sar_select_profile(mvm, 1, 1);
3512
3513 if (mvm->net_detect && unified_image) {
3514 /* If this is a non-unified image, we restart the FW,
3515 * so no need to stop the netdetect scan. If that
3516 * fails, continue and try to get the wake-up reasons,
3517 * but trigger a HW restart by keeping a failure code
3518 * in ret.
3519 */
3520 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
3521 false);
3522 }
3523
3524 query_wakeup_reasons:
3525 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
3526 /* has unlocked the mutex, so skip that */
3527 goto out;
3528
3529 err:
3530 mutex_unlock(&mvm->mutex);
3531 out:
3532 if (d3_data.status)
3533 kfree(d3_data.status->wake_packet);
3534 kfree(d3_data.status);
3535 iwl_mvm_free_nd(mvm);
3536
3537 if (!d3_data.test && !mvm->net_detect)
3538 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
3539 IEEE80211_IFACE_ITER_NORMAL,
3540 iwl_mvm_d3_disconnect_iter,
3541 keep ? vif : NULL);
3542
3543 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3544
3545 /* no need to reset the device in unified images, if successful */
3546 if (unified_image && !ret) {
3547 /* nothing else to do if we already sent D0I3_END_CMD */
3548 if (d0i3_first)
3549 return 0;
3550
3551 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3552 D3_END_NOTIFICATION, 0)) {
3553 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
3554 if (!ret)
3555 return 0;
3556 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) {
3557 return 0;
3558 }
3559 }
3560
3561 /*
3562 * Reconfigure the device in one of the following cases:
3563 * 1. We are not using a unified image
3564 * 2. We are using a unified image but had an error while exiting D3
3565 */
3566 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
3567
3568 /* regardless of what happened, we're now out of D3 */
3569 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3570
3571 return 1;
3572 }
3573
iwl_mvm_resume(struct ieee80211_hw * hw)3574 int iwl_mvm_resume(struct ieee80211_hw *hw)
3575 {
3576 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3577 int ret;
3578
3579 ret = __iwl_mvm_resume(mvm, false);
3580
3581 iwl_mvm_resume_tcm(mvm);
3582
3583 iwl_fw_runtime_resume(&mvm->fwrt);
3584
3585 return ret;
3586 }
3587
iwl_mvm_set_wakeup(struct ieee80211_hw * hw,bool enabled)3588 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
3589 {
3590 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3591
3592 device_set_wakeup_enable(mvm->trans->dev, enabled);
3593 }
3594
iwl_mvm_fast_suspend(struct iwl_mvm * mvm)3595 void iwl_mvm_fast_suspend(struct iwl_mvm *mvm)
3596 {
3597 struct iwl_d3_manager_config d3_cfg_cmd_data = {};
3598 int ret;
3599
3600 lockdep_assert_held(&mvm->mutex);
3601
3602 IWL_DEBUG_WOWLAN(mvm, "Starting fast suspend flow\n");
3603
3604 mvm->fast_resume = true;
3605 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3606
3607 WARN_ON(iwl_mvm_power_update_device(mvm));
3608 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
3609 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SEND_IN_D3,
3610 sizeof(d3_cfg_cmd_data), &d3_cfg_cmd_data);
3611 if (ret)
3612 IWL_ERR(mvm,
3613 "fast suspend: couldn't send D3_CONFIG_CMD %d\n", ret);
3614
3615 WARN_ON(iwl_mvm_power_update_mac(mvm));
3616
3617 ret = iwl_trans_d3_suspend(mvm->trans, false, false);
3618 if (ret)
3619 IWL_ERR(mvm, "fast suspend: trans_d3_suspend failed %d\n", ret);
3620 }
3621
iwl_mvm_fast_resume(struct iwl_mvm * mvm)3622 int iwl_mvm_fast_resume(struct iwl_mvm *mvm)
3623 {
3624 struct iwl_d3_data d3_data = {
3625 .notif_expected =
3626 IWL_D3_NOTIF_D3_END_NOTIF,
3627 };
3628 int ret;
3629
3630 lockdep_assert_held(&mvm->mutex);
3631
3632 IWL_DEBUG_WOWLAN(mvm, "Starting the fast resume flow\n");
3633
3634 mvm->last_reset_or_resume_time_jiffies = jiffies;
3635 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3636
3637 if (iwl_mvm_check_rt_status(mvm, NULL)) {
3638 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3639 iwl_mvm_dump_nic_error_log(mvm);
3640 iwl_dbg_tlv_time_point(&mvm->fwrt,
3641 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3642 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3643 false, 0);
3644 return -ENODEV;
3645 }
3646 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3647 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3648 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3649 mvm->fast_resume = false;
3650
3651 if (ret)
3652 IWL_ERR(mvm, "Couldn't get the d3 notif %d\n", ret);
3653
3654 return ret;
3655 }
3656
3657 #ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_mvm_d3_test_open(struct inode * inode,struct file * file)3658 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
3659 {
3660 struct iwl_mvm *mvm = inode->i_private;
3661 int err;
3662
3663 if (mvm->d3_test_active)
3664 return -EBUSY;
3665
3666 file->private_data = inode->i_private;
3667
3668 iwl_mvm_pause_tcm(mvm, true);
3669
3670 iwl_fw_runtime_suspend(&mvm->fwrt);
3671
3672 /* start pseudo D3 */
3673 rtnl_lock();
3674 wiphy_lock(mvm->hw->wiphy);
3675 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
3676 wiphy_unlock(mvm->hw->wiphy);
3677 rtnl_unlock();
3678 if (err > 0)
3679 err = -EINVAL;
3680 if (err)
3681 return err;
3682
3683 mvm->d3_test_active = true;
3684 mvm->keep_vif = NULL;
3685 return 0;
3686 }
3687
iwl_mvm_d3_test_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)3688 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
3689 size_t count, loff_t *ppos)
3690 {
3691 struct iwl_mvm *mvm = file->private_data;
3692 unsigned long end = jiffies + 60 * HZ;
3693 u32 pme_asserted;
3694
3695 while (true) {
3696 /* read pme_ptr if available */
3697 if (mvm->d3_test_pme_ptr) {
3698 pme_asserted = iwl_trans_read_mem32(mvm->trans,
3699 mvm->d3_test_pme_ptr);
3700 if (pme_asserted)
3701 break;
3702 }
3703
3704 if (msleep_interruptible(100))
3705 break;
3706
3707 if (time_is_before_jiffies(end)) {
3708 IWL_ERR(mvm,
3709 "ending pseudo-D3 with timeout after ~60 seconds\n");
3710 return -ETIMEDOUT;
3711 }
3712 }
3713
3714 return 0;
3715 }
3716
iwl_mvm_d3_test_disconn_work_iter(void * _data,u8 * mac,struct ieee80211_vif * vif)3717 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
3718 struct ieee80211_vif *vif)
3719 {
3720 /* skip the one we keep connection on */
3721 if (_data == vif)
3722 return;
3723
3724 if (vif->type == NL80211_IFTYPE_STATION)
3725 ieee80211_connection_loss(vif);
3726 }
3727
iwl_mvm_d3_test_release(struct inode * inode,struct file * file)3728 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
3729 {
3730 struct iwl_mvm *mvm = inode->i_private;
3731 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3732 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3733
3734 mvm->d3_test_active = false;
3735
3736 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3737
3738 rtnl_lock();
3739 wiphy_lock(mvm->hw->wiphy);
3740 __iwl_mvm_resume(mvm, true);
3741 wiphy_unlock(mvm->hw->wiphy);
3742 rtnl_unlock();
3743
3744 iwl_mvm_resume_tcm(mvm);
3745
3746 iwl_fw_runtime_resume(&mvm->fwrt);
3747
3748 iwl_abort_notification_waits(&mvm->notif_wait);
3749 if (!unified_image) {
3750 int remaining_time = 10;
3751
3752 ieee80211_restart_hw(mvm->hw);
3753
3754 /* wait for restart and disconnect all interfaces */
3755 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3756 remaining_time > 0) {
3757 remaining_time--;
3758 msleep(1000);
3759 }
3760
3761 if (remaining_time == 0)
3762 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
3763 }
3764
3765 ieee80211_iterate_active_interfaces_atomic(
3766 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
3767 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
3768
3769 return 0;
3770 }
3771
3772 const struct file_operations iwl_dbgfs_d3_test_ops = {
3773 .open = iwl_mvm_d3_test_open,
3774 .read = iwl_mvm_d3_test_read,
3775 .release = iwl_mvm_d3_test_release,
3776 };
3777 #endif
3778