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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / net / wireless / intel / iwlwifi / mvm / d3.c
blobf85c01e04ebf667c544a23a512175c4c4342529a
1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/etherdevice.h>
8 #include <linux/ip.h>
9 #include <linux/fs.h>
10 #include <net/cfg80211.h>
11 #include <net/ipv6.h>
12 #include <net/tcp.h>
13 #include <net/addrconf.h>
14 #include "iwl-modparams.h"
15 #include "fw-api.h"
16 #include "mvm.h"
17 #include "fw/img.h"
18
19 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
20 struct ieee80211_vif *vif,
21 struct cfg80211_gtk_rekey_data *data)
22 {
23 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
24 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
25
26 mutex_lock(&mvm->mutex);
27
28 mvmvif->rekey_data.kek_len = data->kek_len;
29 mvmvif->rekey_data.kck_len = data->kck_len;
30 memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len);
31 memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len);
32 mvmvif->rekey_data.akm = data->akm & 0xFF;
33 mvmvif->rekey_data.replay_ctr =
34 cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr));
35 mvmvif->rekey_data.valid = true;
36
37 mutex_unlock(&mvm->mutex);
38 }
39
40 #if IS_ENABLED(CONFIG_IPV6)
41 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
42 struct ieee80211_vif *vif,
43 struct inet6_dev *idev)
44 {
45 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
46 struct inet6_ifaddr *ifa;
47 int idx = 0;
48
49 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
50
51 read_lock_bh(&idev->lock);
52 list_for_each_entry(ifa, &idev->addr_list, if_list) {
53 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
54 if (ifa->flags & IFA_F_TENTATIVE)
55 __set_bit(idx, mvmvif->tentative_addrs);
56 idx++;
57 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
58 break;
59 }
60 read_unlock_bh(&idev->lock);
61
62 mvmvif->num_target_ipv6_addrs = idx;
63 }
64 #endif
65
66 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
67 struct ieee80211_vif *vif, int idx)
68 {
69 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
70
71 mvmvif->tx_key_idx = idx;
72 }
73
74 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
75 {
76 int i;
77
78 for (i = 0; i < IWL_P1K_SIZE; i++)
79 out[i] = cpu_to_le16(p1k[i]);
80 }
81
82 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
83 struct iwl_mvm_key_pn *ptk_pn,
84 struct ieee80211_key_seq *seq,
85 int tid, int queues)
86 {
87 const u8 *ret = seq->ccmp.pn;
88 int i;
89
90 /* get the PN from mac80211, used on the default queue */
91 ieee80211_get_key_rx_seq(key, tid, seq);
92
93 /* and use the internal data for the other queues */
94 for (i = 1; i < queues; i++) {
95 const u8 *tmp = ptk_pn->q[i].pn[tid];
96
97 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
98 ret = tmp;
99 }
100
101 return ret;
102 }
103
104 struct wowlan_key_reprogram_data {
105 bool error;
106 int wep_key_idx;
107 };
108
109 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
110 struct ieee80211_vif *vif,
111 struct ieee80211_sta *sta,
112 struct ieee80211_key_conf *key,
113 void *_data)
114 {
115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
117 struct wowlan_key_reprogram_data *data = _data;
118 int ret;
119
120 switch (key->cipher) {
121 case WLAN_CIPHER_SUITE_WEP40:
122 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
123 struct {
124 struct iwl_mvm_wep_key_cmd wep_key_cmd;
125 struct iwl_mvm_wep_key wep_key;
126 } __packed wkc = {
127 .wep_key_cmd.mac_id_n_color =
128 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
129 mvmvif->color)),
130 .wep_key_cmd.num_keys = 1,
131 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
132 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
133 .wep_key.key_index = key->keyidx,
134 .wep_key.key_size = key->keylen,
135 };
136
137 /*
138 * This will fail -- the key functions don't set support
139 * pairwise WEP keys. However, that's better than silently
140 * failing WoWLAN. Or maybe not?
141 */
142 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
143 break;
144
145 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
146 if (key->keyidx == mvmvif->tx_key_idx) {
147 /* TX key must be at offset 0 */
148 wkc.wep_key.key_offset = 0;
149 } else {
150 /* others start at 1 */
151 data->wep_key_idx++;
152 wkc.wep_key.key_offset = data->wep_key_idx;
153 }
154
155 mutex_lock(&mvm->mutex);
156 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc);
157 data->error = ret != 0;
158
159 mvm->ptk_ivlen = key->iv_len;
160 mvm->ptk_icvlen = key->icv_len;
161 mvm->gtk_ivlen = key->iv_len;
162 mvm->gtk_icvlen = key->icv_len;
163 mutex_unlock(&mvm->mutex);
164
165 /* don't upload key again */
166 return;
167 }
168 default:
169 data->error = true;
170 return;
171 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
173 return;
174 case WLAN_CIPHER_SUITE_AES_CMAC:
175 /*
176 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
177 * but we also shouldn't abort suspend due to that. It does have
178 * support for the IGTK key renewal, but doesn't really use the
179 * IGTK for anything. This means we could spuriously wake up or
180 * be deauthenticated, but that was considered acceptable.
181 */
182 return;
183 case WLAN_CIPHER_SUITE_TKIP:
184 case WLAN_CIPHER_SUITE_CCMP:
185 case WLAN_CIPHER_SUITE_GCMP:
186 case WLAN_CIPHER_SUITE_GCMP_256:
187 break;
188 }
189
190 mutex_lock(&mvm->mutex);
191 /*
192 * The D3 firmware hardcodes the key offset 0 as the key it
193 * uses to transmit packets to the AP, i.e. the PTK.
194 */
195 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
196 mvm->ptk_ivlen = key->iv_len;
197 mvm->ptk_icvlen = key->icv_len;
198 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
199 } else {
200 /*
201 * firmware only supports TSC/RSC for a single key,
202 * so if there are multiple keep overwriting them
203 * with new ones -- this relies on mac80211 doing
204 * list_add_tail().
205 */
206 mvm->gtk_ivlen = key->iv_len;
207 mvm->gtk_icvlen = key->icv_len;
208 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
209 }
210 mutex_unlock(&mvm->mutex);
211 data->error = ret != 0;
212 }
213
214 struct wowlan_key_rsc_tsc_data {
215 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
216 bool have_rsc_tsc;
217 };
218
219 static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw,
220 struct ieee80211_vif *vif,
221 struct ieee80211_sta *sta,
222 struct ieee80211_key_conf *key,
223 void *_data)
224 {
225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
226 struct wowlan_key_rsc_tsc_data *data = _data;
227 struct aes_sc *aes_sc;
228 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
229 struct ieee80211_key_seq seq;
230 int i;
231
232 switch (key->cipher) {
233 default:
234 break;
235 case WLAN_CIPHER_SUITE_TKIP:
236 if (sta) {
237 u64 pn64;
238
239 tkip_sc =
240 data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc;
241 tkip_tx_sc =
242 &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc;
243
244 pn64 = atomic64_read(&key->tx_pn);
245 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
246 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
247 } else {
248 tkip_sc =
249 data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
250 }
251
252 /*
253 * For non-QoS this relies on the fact that both the uCode and
254 * mac80211 use TID 0 (as they need to to avoid replay attacks)
255 * for checking the IV in the frames.
256 */
257 for (i = 0; i < IWL_NUM_RSC; i++) {
258 ieee80211_get_key_rx_seq(key, i, &seq);
259 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
260 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
261 }
262
263 data->have_rsc_tsc = true;
264 break;
265 case WLAN_CIPHER_SUITE_CCMP:
266 case WLAN_CIPHER_SUITE_GCMP:
267 case WLAN_CIPHER_SUITE_GCMP_256:
268 if (sta) {
269 struct aes_sc *aes_tx_sc;
270 u64 pn64;
271
272 aes_sc =
273 data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc;
274 aes_tx_sc =
275 &data->rsc_tsc->params.all_tsc_rsc.aes.tsc;
276
277 pn64 = atomic64_read(&key->tx_pn);
278 aes_tx_sc->pn = cpu_to_le64(pn64);
279 } else {
280 aes_sc =
281 data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
282 }
283
284 /*
285 * For non-QoS this relies on the fact that both the uCode and
286 * mac80211/our RX code use TID 0 for checking the PN.
287 */
288 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
289 struct iwl_mvm_sta *mvmsta;
290 struct iwl_mvm_key_pn *ptk_pn;
291 const u8 *pn;
292
293 mvmsta = iwl_mvm_sta_from_mac80211(sta);
294 rcu_read_lock();
295 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
296 if (WARN_ON(!ptk_pn)) {
297 rcu_read_unlock();
298 break;
299 }
300
301 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
302 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
303 mvm->trans->num_rx_queues);
304 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
305 ((u64)pn[4] << 8) |
306 ((u64)pn[3] << 16) |
307 ((u64)pn[2] << 24) |
308 ((u64)pn[1] << 32) |
309 ((u64)pn[0] << 40));
310 }
311
312 rcu_read_unlock();
313 } else {
314 for (i = 0; i < IWL_NUM_RSC; i++) {
315 u8 *pn = seq.ccmp.pn;
316
317 ieee80211_get_key_rx_seq(key, i, &seq);
318 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
319 ((u64)pn[4] << 8) |
320 ((u64)pn[3] << 16) |
321 ((u64)pn[2] << 24) |
322 ((u64)pn[1] << 32) |
323 ((u64)pn[0] << 40));
324 }
325 }
326 data->have_rsc_tsc = true;
327 break;
328 }
329 }
330
331 struct wowlan_key_rsc_v5_data {
332 struct iwl_wowlan_rsc_tsc_params_cmd *rsc;
333 bool have_rsc;
334 int gtks;
335 int gtk_ids[4];
336 };
337
338 static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw,
339 struct ieee80211_vif *vif,
340 struct ieee80211_sta *sta,
341 struct ieee80211_key_conf *key,
342 void *_data)
343 {
344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
345 struct wowlan_key_rsc_v5_data *data = _data;
346 struct ieee80211_key_seq seq;
347 __le64 *rsc;
348 int i;
349
350 /* only for ciphers that can be PTK/GTK */
351 switch (key->cipher) {
352 default:
353 return;
354 case WLAN_CIPHER_SUITE_TKIP:
355 case WLAN_CIPHER_SUITE_CCMP:
356 case WLAN_CIPHER_SUITE_GCMP:
357 case WLAN_CIPHER_SUITE_GCMP_256:
358 break;
359 }
360
361 if (sta) {
362 rsc = data->rsc->ucast_rsc;
363 } else {
364 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
365 return;
366 data->gtk_ids[data->gtks] = key->keyidx;
367 rsc = data->rsc->mcast_rsc[data->gtks % 2];
368 if (WARN_ON(key->keyidx >=
369 ARRAY_SIZE(data->rsc->mcast_key_id_map)))
370 return;
371 data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2;
372 if (data->gtks >= 2) {
373 int prev = data->gtks - 2;
374 int prev_idx = data->gtk_ids[prev];
375
376 data->rsc->mcast_key_id_map[prev_idx] =
377 IWL_MCAST_KEY_MAP_INVALID;
378 }
379 data->gtks++;
380 }
381
382 switch (key->cipher) {
383 default:
384 WARN_ON(1);
385 break;
386 case WLAN_CIPHER_SUITE_TKIP:
387
388 /*
389 * For non-QoS this relies on the fact that both the uCode and
390 * mac80211 use TID 0 (as they need to to avoid replay attacks)
391 * for checking the IV in the frames.
392 */
393 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
394 ieee80211_get_key_rx_seq(key, i, &seq);
395
396 rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) |
397 seq.tkip.iv16);
398 }
399
400 data->have_rsc = true;
401 break;
402 case WLAN_CIPHER_SUITE_CCMP:
403 case WLAN_CIPHER_SUITE_GCMP:
404 case WLAN_CIPHER_SUITE_GCMP_256:
405 /*
406 * For non-QoS this relies on the fact that both the uCode and
407 * mac80211/our RX code use TID 0 for checking the PN.
408 */
409 if (sta) {
410 struct iwl_mvm_sta *mvmsta;
411 struct iwl_mvm_key_pn *ptk_pn;
412 const u8 *pn;
413
414 mvmsta = iwl_mvm_sta_from_mac80211(sta);
415 rcu_read_lock();
416 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
417 if (WARN_ON(!ptk_pn)) {
418 rcu_read_unlock();
419 break;
420 }
421
422 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
423 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
424 mvm->trans->num_rx_queues);
425 rsc[i] = cpu_to_le64((u64)pn[5] |
426 ((u64)pn[4] << 8) |
427 ((u64)pn[3] << 16) |
428 ((u64)pn[2] << 24) |
429 ((u64)pn[1] << 32) |
430 ((u64)pn[0] << 40));
431 }
432
433 rcu_read_unlock();
434 } else {
435 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
436 u8 *pn = seq.ccmp.pn;
437
438 ieee80211_get_key_rx_seq(key, i, &seq);
439 rsc[i] = cpu_to_le64((u64)pn[5] |
440 ((u64)pn[4] << 8) |
441 ((u64)pn[3] << 16) |
442 ((u64)pn[2] << 24) |
443 ((u64)pn[1] << 32) |
444 ((u64)pn[0] << 40));
445 }
446 }
447 data->have_rsc = true;
448 break;
449 }
450 }
451
452 static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm,
453 struct ieee80211_vif *vif,
454 struct iwl_mvm_vif_link_info *mvm_link)
455 {
456 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM,
457 IWL_FW_CMD_VER_UNKNOWN);
458 int ret;
459
460 if (ver == 5) {
461 struct wowlan_key_rsc_v5_data data = {};
462 int i;
463
464 data.rsc = kzalloc(sizeof(*data.rsc), GFP_KERNEL);
465 if (!data.rsc)
466 return -ENOMEM;
467
468 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
469 data.rsc->mcast_key_id_map[i] =
470 IWL_MCAST_KEY_MAP_INVALID;
471 data.rsc->sta_id = cpu_to_le32(mvm_link->ap_sta_id);
472
473 ieee80211_iter_keys(mvm->hw, vif,
474 iwl_mvm_wowlan_get_rsc_v5_data,
475 &data);
476
477 if (data.have_rsc)
478 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
479 CMD_ASYNC, sizeof(*data.rsc),
480 data.rsc);
481 else
482 ret = 0;
483 kfree(data.rsc);
484 } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
485 struct wowlan_key_rsc_tsc_data data = {};
486 int size;
487
488 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
489 if (!data.rsc_tsc)
490 return -ENOMEM;
491
492 if (ver == 4) {
493 size = sizeof(*data.rsc_tsc);
494 data.rsc_tsc->sta_id =
495 cpu_to_le32(mvm_link->ap_sta_id);
496 } else {
497 /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
498 size = sizeof(data.rsc_tsc->params);
499 }
500
501 ieee80211_iter_keys(mvm->hw, vif,
502 iwl_mvm_wowlan_get_rsc_tsc_data,
503 &data);
504
505 if (data.have_rsc_tsc)
506 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
507 CMD_ASYNC, size,
508 data.rsc_tsc);
509 else
510 ret = 0;
511 kfree(data.rsc_tsc);
512 } else {
513 ret = 0;
514 WARN_ON_ONCE(1);
515 }
516
517 return ret;
518 }
519
520 struct wowlan_key_tkip_data {
521 struct iwl_wowlan_tkip_params_cmd tkip;
522 bool have_tkip_keys;
523 };
524
525 static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw,
526 struct ieee80211_vif *vif,
527 struct ieee80211_sta *sta,
528 struct ieee80211_key_conf *key,
529 void *_data)
530 {
531 struct wowlan_key_tkip_data *data = _data;
532 struct iwl_p1k_cache *rx_p1ks;
533 u8 *rx_mic_key;
534 struct ieee80211_key_seq seq;
535 u32 cur_rx_iv32 = 0;
536 u16 p1k[IWL_P1K_SIZE];
537 int i;
538
539 switch (key->cipher) {
540 default:
541 break;
542 case WLAN_CIPHER_SUITE_TKIP:
543 if (sta) {
544 u64 pn64;
545
546 rx_p1ks = data->tkip.rx_uni;
547
548 pn64 = atomic64_read(&key->tx_pn);
549
550 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
551 p1k);
552 iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k);
553
554 memcpy(data->tkip.mic_keys.tx,
555 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
556 IWL_MIC_KEY_SIZE);
557
558 rx_mic_key = data->tkip.mic_keys.rx_unicast;
559 } else {
560 rx_p1ks = data->tkip.rx_multi;
561 rx_mic_key = data->tkip.mic_keys.rx_mcast;
562 }
563
564 for (i = 0; i < IWL_NUM_RSC; i++) {
565 ieee80211_get_key_rx_seq(key, i, &seq);
566 /* wrapping isn't allowed, AP must rekey */
567 if (seq.tkip.iv32 > cur_rx_iv32)
568 cur_rx_iv32 = seq.tkip.iv32;
569 }
570
571 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
572 cur_rx_iv32, p1k);
573 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
574 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
575 cur_rx_iv32 + 1, p1k);
576 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
577
578 memcpy(rx_mic_key,
579 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
580 IWL_MIC_KEY_SIZE);
581
582 data->have_tkip_keys = true;
583 break;
584 }
585 }
586
587 struct wowlan_key_gtk_type_iter {
588 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
589 };
590
591 static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
592 struct ieee80211_vif *vif,
593 struct ieee80211_sta *sta,
594 struct ieee80211_key_conf *key,
595 void *_data)
596 {
597 struct wowlan_key_gtk_type_iter *data = _data;
598 __le32 *cipher = NULL;
599
600 if (key->keyidx == 4 || key->keyidx == 5)
601 cipher = &data->kek_kck_cmd->igtk_cipher;
602 if (key->keyidx == 6 || key->keyidx == 7)
603 cipher = &data->kek_kck_cmd->bigtk_cipher;
604
605 switch (key->cipher) {
606 default:
607 return;
608 case WLAN_CIPHER_SUITE_TKIP:
609 if (!sta)
610 data->kek_kck_cmd->gtk_cipher =
611 cpu_to_le32(STA_KEY_FLG_TKIP);
612 return;
613 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
614 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
615 if (cipher)
616 *cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
617 return;
618 case WLAN_CIPHER_SUITE_AES_CMAC:
619 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
620 if (cipher)
621 *cipher = cpu_to_le32(STA_KEY_FLG_CCM);
622 return;
623 case WLAN_CIPHER_SUITE_CCMP:
624 if (!sta)
625 data->kek_kck_cmd->gtk_cipher =
626 cpu_to_le32(STA_KEY_FLG_CCM);
627 return;
628 case WLAN_CIPHER_SUITE_GCMP:
629 case WLAN_CIPHER_SUITE_GCMP_256:
630 if (!sta)
631 data->kek_kck_cmd->gtk_cipher =
632 cpu_to_le32(STA_KEY_FLG_GCMP);
633 return;
634 }
635 }
636
637 static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
638 struct cfg80211_wowlan *wowlan)
639 {
640 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
641 struct iwl_host_cmd cmd = {
642 .id = WOWLAN_PATTERNS,
643 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
644 };
645 int i, err;
646
647 if (!wowlan->n_patterns)
648 return 0;
649
650 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
651
652 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
653 if (!pattern_cmd)
654 return -ENOMEM;
655
656 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
657
658 for (i = 0; i < wowlan->n_patterns; i++) {
659 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
660
661 memcpy(&pattern_cmd->patterns[i].mask,
662 wowlan->patterns[i].mask, mask_len);
663 memcpy(&pattern_cmd->patterns[i].pattern,
664 wowlan->patterns[i].pattern,
665 wowlan->patterns[i].pattern_len);
666 pattern_cmd->patterns[i].mask_size = mask_len;
667 pattern_cmd->patterns[i].pattern_size =
668 wowlan->patterns[i].pattern_len;
669 }
670
671 cmd.data[0] = pattern_cmd;
672 err = iwl_mvm_send_cmd(mvm, &cmd);
673 kfree(pattern_cmd);
674 return err;
675 }
676
677 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
678 struct iwl_mvm_vif_link_info *mvm_link,
679 struct cfg80211_wowlan *wowlan)
680 {
681 struct iwl_wowlan_patterns_cmd *pattern_cmd;
682 struct iwl_host_cmd cmd = {
683 .id = WOWLAN_PATTERNS,
684 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
685 };
686 int i, err;
687 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
688 IWL_FW_CMD_VER_UNKNOWN);
689
690 if (!wowlan->n_patterns)
691 return 0;
692
693 cmd.len[0] = sizeof(*pattern_cmd) +
694 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
695
696 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
697 if (!pattern_cmd)
698 return -ENOMEM;
699
700 pattern_cmd->n_patterns = wowlan->n_patterns;
701 if (ver >= 3)
702 pattern_cmd->sta_id = mvm_link->ap_sta_id;
703
704 for (i = 0; i < wowlan->n_patterns; i++) {
705 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
706
707 pattern_cmd->patterns[i].pattern_type =
708 WOWLAN_PATTERN_TYPE_BITMASK;
709
710 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
711 wowlan->patterns[i].mask, mask_len);
712 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
713 wowlan->patterns[i].pattern,
714 wowlan->patterns[i].pattern_len);
715 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
716 pattern_cmd->patterns[i].u.bitmask.pattern_size =
717 wowlan->patterns[i].pattern_len;
718 }
719
720 cmd.data[0] = pattern_cmd;
721 err = iwl_mvm_send_cmd(mvm, &cmd);
722 kfree(pattern_cmd);
723 return err;
724 }
725
726 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
727 struct ieee80211_sta *ap_sta)
728 {
729 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
730 struct ieee80211_chanctx_conf *ctx;
731 u8 chains_static, chains_dynamic;
732 struct cfg80211_chan_def chandef, ap_def;
733 int ret, i;
734 struct iwl_binding_cmd_v1 binding_cmd = {};
735 struct iwl_time_quota_cmd quota_cmd = {};
736 struct iwl_time_quota_data *quota;
737 u32 status;
738
739 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm) ||
740 ieee80211_vif_is_mld(vif)))
741 return -EINVAL;
742
743 /* add back the PHY */
744 if (WARN_ON(!mvmvif->deflink.phy_ctxt))
745 return -EINVAL;
746
747 rcu_read_lock();
748 ctx = rcu_dereference(vif->bss_conf.chanctx_conf);
749 if (WARN_ON(!ctx)) {
750 rcu_read_unlock();
751 return -EINVAL;
752 }
753 chandef = ctx->def;
754 ap_def = ctx->ap;
755 chains_static = ctx->rx_chains_static;
756 chains_dynamic = ctx->rx_chains_dynamic;
757 rcu_read_unlock();
758
759 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef,
760 &ap_def, chains_static, chains_dynamic);
761 if (ret)
762 return ret;
763
764 /* add back the MAC */
765 mvmvif->uploaded = false;
766
767 if (WARN_ON(!vif->cfg.assoc))
768 return -EINVAL;
769
770 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
771 if (ret)
772 return ret;
773
774 /* add back binding - XXX refactor? */
775 binding_cmd.id_and_color =
776 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
777 mvmvif->deflink.phy_ctxt->color));
778 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
779 binding_cmd.phy =
780 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
781 mvmvif->deflink.phy_ctxt->color));
782 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
783 mvmvif->color));
784 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
785 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
786
787 status = 0;
788 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
789 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
790 &status);
791 if (ret) {
792 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
793 return ret;
794 }
795
796 if (status) {
797 IWL_ERR(mvm, "Binding command failed: %u\n", status);
798 return -EIO;
799 }
800
801 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
802 if (ret)
803 return ret;
804 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
805 ap_sta);
806
807 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
808 if (ret)
809 return ret;
810
811 /* and some quota */
812 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_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, &quota_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), &quota_cmd);
826 if (ret)
827 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
828
829 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false))
830 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
831
832 return 0;
833 }
834
835 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
836 struct ieee80211_vif *vif)
837 {
838 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
839 struct iwl_nonqos_seq_query_cmd query_cmd = {
840 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
841 .mac_id_n_color =
842 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
843 mvmvif->color)),
844 };
845 struct iwl_host_cmd cmd = {
846 .id = NON_QOS_TX_COUNTER_CMD,
847 .flags = CMD_WANT_SKB,
848 };
849 int err;
850 u32 size;
851
852 cmd.data[0] = &query_cmd;
853 cmd.len[0] = sizeof(query_cmd);
854
855 err = iwl_mvm_send_cmd(mvm, &cmd);
856 if (err)
857 return err;
858
859 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
860 if (size < sizeof(__le16)) {
861 err = -EINVAL;
862 } else {
863 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
864 /* firmware returns next, not last-used seqno */
865 err = (u16) (err - 0x10);
866 }
867
868 iwl_free_resp(&cmd);
869 return err;
870 }
871
872 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
873 {
874 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
875 struct iwl_nonqos_seq_query_cmd query_cmd = {
876 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
877 .mac_id_n_color =
878 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
879 mvmvif->color)),
880 .value = cpu_to_le16(mvmvif->seqno),
881 };
882
883 /* return if called during restart, not resume from D3 */
884 if (!mvmvif->seqno_valid)
885 return;
886
887 mvmvif->seqno_valid = false;
888
889 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
890 sizeof(query_cmd), &query_cmd))
891 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
892 }
893
894 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
895 {
896 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
897
898 iwl_mvm_stop_device(mvm);
899 /*
900 * Set the HW restart bit -- this is mostly true as we're
901 * going to load new firmware and reprogram that, though
902 * the reprogramming is going to be manual to avoid adding
903 * all the MACs that aren't support.
904 * We don't have to clear up everything though because the
905 * reprogramming is manual. When we resume, we'll actually
906 * go through a proper restart sequence again to switch
907 * back to the runtime firmware image.
908 */
909 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
910
911 /* the fw is reset, so all the keys are cleared */
912 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
913
914 mvm->ptk_ivlen = 0;
915 mvm->ptk_icvlen = 0;
916 mvm->ptk_ivlen = 0;
917 mvm->ptk_icvlen = 0;
918
919 return iwl_mvm_load_d3_fw(mvm);
920 }
921
922 static int
923 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
924 struct cfg80211_wowlan *wowlan,
925 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd,
926 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
927 struct ieee80211_sta *ap_sta)
928 {
929 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
930
931 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
932
933 wowlan_config_cmd->is_11n_connection =
934 ap_sta->deflink.ht_cap.ht_supported;
935 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
936 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
937
938 if (ap_sta->mfp)
939 wowlan_config_cmd->flags |= IS_11W_ASSOC;
940
941 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
942 /* Query the last used seqno and set it */
943 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
944
945 if (ret < 0)
946 return ret;
947
948 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
949 }
950
951 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 7)
952 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
953
954 if (wowlan->disconnect)
955 wowlan_config_cmd->wakeup_filter |=
956 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
957 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
958 if (wowlan->magic_pkt)
959 wowlan_config_cmd->wakeup_filter |=
960 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
961 if (wowlan->gtk_rekey_failure)
962 wowlan_config_cmd->wakeup_filter |=
963 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
964 if (wowlan->eap_identity_req)
965 wowlan_config_cmd->wakeup_filter |=
966 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
967 if (wowlan->four_way_handshake)
968 wowlan_config_cmd->wakeup_filter |=
969 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
970 if (wowlan->n_patterns)
971 wowlan_config_cmd->wakeup_filter |=
972 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
973
974 if (wowlan->rfkill_release)
975 wowlan_config_cmd->wakeup_filter |=
976 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
977
978 if (wowlan->tcp) {
979 /*
980 * Set the "link change" (really "link lost") flag as well
981 * since that implies losing the TCP connection.
982 */
983 wowlan_config_cmd->wakeup_filter |=
984 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
985 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
986 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
987 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
988 }
989
990 if (wowlan->any) {
991 wowlan_config_cmd->wakeup_filter |=
992 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
993 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
994 IWL_WOWLAN_WAKEUP_RX_FRAME |
995 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
996 }
997
998 return 0;
999 }
1000
1001 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
1002 struct ieee80211_vif *vif,
1003 struct iwl_mvm_vif_link_info *mvm_link)
1004 {
1005 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
1006 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1007 struct wowlan_key_reprogram_data key_data = {};
1008 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1009 int ret;
1010 u8 cmd_ver;
1011 size_t cmd_size;
1012
1013 if (!unified) {
1014 /*
1015 * if we have to configure keys, call ieee80211_iter_keys(),
1016 * as we need non-atomic context in order to take the
1017 * required locks.
1018 */
1019 /*
1020 * Note that currently we don't use CMD_ASYNC in the iterator.
1021 * In case of key_data.configure_keys, all the configured
1022 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1023 * take care of locking/unlocking mvm->mutex.
1024 */
1025 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1026 &key_data);
1027
1028 if (key_data.error)
1029 return -EIO;
1030 }
1031
1032 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link);
1033 if (ret)
1034 return ret;
1035
1036 if (!fw_has_api(&mvm->fw->ucode_capa,
1037 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
1038 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
1039 IWL_FW_CMD_VER_UNKNOWN);
1040 struct wowlan_key_tkip_data tkip_data = {};
1041 int size;
1042
1043 if (ver == 2) {
1044 size = sizeof(tkip_data.tkip);
1045 tkip_data.tkip.sta_id =
1046 cpu_to_le32(mvm_link->ap_sta_id);
1047 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1048 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1049 } else {
1050 WARN_ON_ONCE(1);
1051 return -EINVAL;
1052 }
1053
1054 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1055 &tkip_data);
1056
1057 if (tkip_data.have_tkip_keys) {
1058 /* send relevant data according to CMD version */
1059 ret = iwl_mvm_send_cmd_pdu(mvm,
1060 WOWLAN_TKIP_PARAM,
1061 CMD_ASYNC, size,
1062 &tkip_data.tkip);
1063 if (ret)
1064 return ret;
1065 }
1066 }
1067
1068 /* configure rekey data only if offloaded rekey is supported (d3) */
1069 if (mvmvif->rekey_data.valid) {
1070 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1071 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1072 &kek_kck_cmd;
1073 struct wowlan_key_gtk_type_iter gtk_type_data = {
1074 .kek_kck_cmd = _kek_kck_cmd,
1075 };
1076
1077 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1078 WOWLAN_KEK_KCK_MATERIAL,
1079 IWL_FW_CMD_VER_UNKNOWN);
1080 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
1081 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1082 return -EINVAL;
1083
1084 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1085 &gtk_type_data);
1086
1087 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1088 mvmvif->rekey_data.kck_len);
1089 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
1090 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1091 mvmvif->rekey_data.kek_len);
1092 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
1093 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1094 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
1095 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id);
1096
1097 if (cmd_ver == 4) {
1098 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1099 } else {
1100 if (cmd_ver == 3)
1101 cmd_size =
1102 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1103 else
1104 cmd_size =
1105 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1106 /* skip the sta_id at the beginning */
1107 _kek_kck_cmd = (void *)
1108 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
1109 }
1110
1111 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1112 mvmvif->rekey_data.akm);
1113
1114 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1115 CMD_ASYNC, cmd_size, _kek_kck_cmd);
1116 if (ret)
1117 return ret;
1118 }
1119
1120 return 0;
1121 }
1122
1123 static int
1124 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1125 struct cfg80211_wowlan *wowlan,
1126 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd_v6,
1127 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1128 struct iwl_mvm_vif_link_info *mvm_link,
1129 struct ieee80211_sta *ap_sta)
1130 {
1131 int ret;
1132 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1133 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1134
1135 mvm->offload_tid = wowlan_config_cmd_v6->offloading_tid;
1136
1137 if (!unified_image) {
1138 ret = iwl_mvm_switch_to_d3(mvm);
1139 if (ret)
1140 return ret;
1141
1142 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1143 if (ret)
1144 return ret;
1145 }
1146
1147 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link);
1148 if (ret)
1149 return ret;
1150
1151 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) > 6) {
1152 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1153 .wakeup_filter = wowlan_config_cmd_v6->wakeup_filter,
1154 .wowlan_ba_teardown_tids =
1155 wowlan_config_cmd_v6->wowlan_ba_teardown_tids,
1156 .is_11n_connection =
1157 wowlan_config_cmd_v6->is_11n_connection,
1158 .offloading_tid = wowlan_config_cmd_v6->offloading_tid,
1159 .flags = wowlan_config_cmd_v6->flags,
1160 .sta_id = wowlan_config_cmd_v6->sta_id,
1161 };
1162
1163 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1164 sizeof(wowlan_config_cmd),
1165 &wowlan_config_cmd);
1166 } else {
1167 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1168 sizeof(*wowlan_config_cmd_v6),
1169 wowlan_config_cmd_v6);
1170 }
1171 if (ret)
1172 return ret;
1173
1174 if (fw_has_api(&mvm->fw->ucode_capa,
1175 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
1176 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan);
1177 else
1178 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
1179 if (ret)
1180 return ret;
1181
1182 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0,
1183 mvm_link->ap_sta_id);
1184 }
1185
1186 static int
1187 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1188 struct cfg80211_wowlan *wowlan,
1189 struct cfg80211_sched_scan_request *nd_config,
1190 struct ieee80211_vif *vif)
1191 {
1192 int ret;
1193 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1194 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1195
1196 if (!unified_image) {
1197 ret = iwl_mvm_switch_to_d3(mvm);
1198 if (ret)
1199 return ret;
1200 } else {
1201 /* In theory, we wouldn't have to stop a running sched
1202 * scan in order to start another one (for
1203 * net-detect). But in practice this doesn't seem to
1204 * work properly, so stop any running sched_scan now.
1205 */
1206 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1207 if (ret)
1208 return ret;
1209 }
1210
1211 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1212 IWL_MVM_SCAN_NETDETECT);
1213 if (ret)
1214 return ret;
1215
1216 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1217 return -EBUSY;
1218
1219 /* save the sched scan matchsets... */
1220 if (nd_config->n_match_sets) {
1221 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1222 sizeof(*nd_config->match_sets) *
1223 nd_config->n_match_sets,
1224 GFP_KERNEL);
1225 if (mvm->nd_match_sets)
1226 mvm->n_nd_match_sets = nd_config->n_match_sets;
1227 }
1228
1229 /* ...and the sched scan channels for later reporting */
1230 mvm->nd_channels = kmemdup(nd_config->channels,
1231 sizeof(*nd_config->channels) *
1232 nd_config->n_channels,
1233 GFP_KERNEL);
1234 if (mvm->nd_channels)
1235 mvm->n_nd_channels = nd_config->n_channels;
1236
1237 return 0;
1238 }
1239
1240 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1241 {
1242 kfree(mvm->nd_match_sets);
1243 mvm->nd_match_sets = NULL;
1244 mvm->n_nd_match_sets = 0;
1245 kfree(mvm->nd_channels);
1246 mvm->nd_channels = NULL;
1247 mvm->n_nd_channels = 0;
1248 }
1249
1250 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1251 struct cfg80211_wowlan *wowlan,
1252 bool test)
1253 {
1254 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1255 struct ieee80211_vif *vif = NULL;
1256 struct iwl_mvm_vif *mvmvif = NULL;
1257 struct ieee80211_sta *ap_sta = NULL;
1258 struct iwl_mvm_vif_link_info *mvm_link;
1259 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1260 /*
1261 * Program the minimum sleep time to 10 seconds, as many
1262 * platforms have issues processing a wakeup signal while
1263 * still being in the process of suspending.
1264 */
1265 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1266 };
1267 struct iwl_host_cmd d3_cfg_cmd = {
1268 .id = D3_CONFIG_CMD,
1269 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1270 .data[0] = &d3_cfg_cmd_data,
1271 .len[0] = sizeof(d3_cfg_cmd_data),
1272 };
1273 int ret;
1274 int len __maybe_unused;
1275 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1276 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1277
1278 if (!wowlan) {
1279 /*
1280 * mac80211 shouldn't get here, but for D3 test
1281 * it doesn't warrant a warning
1282 */
1283 WARN_ON(!test);
1284 return -EINVAL;
1285 }
1286
1287 vif = iwl_mvm_get_bss_vif(mvm);
1288 if (IS_ERR_OR_NULL(vif))
1289 return 1;
1290
1291 ret = iwl_mvm_block_esr_sync(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN);
1292 if (ret)
1293 return ret;
1294
1295 mutex_lock(&mvm->mutex);
1296
1297 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1298
1299 synchronize_net();
1300
1301 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1302
1303 mvm_link = mvmvif->link[iwl_mvm_get_primary_link(vif)];
1304 if (WARN_ON_ONCE(!mvm_link)) {
1305 ret = -EINVAL;
1306 goto out_noreset;
1307 }
1308
1309 if (mvm_link->ap_sta_id == IWL_INVALID_STA) {
1310 /* if we're not associated, this must be netdetect */
1311 if (!wowlan->nd_config) {
1312 ret = 1;
1313 goto out_noreset;
1314 }
1315
1316 ret = iwl_mvm_netdetect_config(
1317 mvm, wowlan, wowlan->nd_config, vif);
1318 if (ret)
1319 goto out;
1320
1321 mvm->net_detect = true;
1322 } else {
1323 struct iwl_wowlan_config_cmd_v6 wowlan_config_cmd = {
1324 .offloading_tid = 0,
1325 };
1326
1327 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id;
1328
1329 ap_sta = rcu_dereference_protected(
1330 mvm->fw_id_to_mac_id[mvm_link->ap_sta_id],
1331 lockdep_is_held(&mvm->mutex));
1332 if (IS_ERR_OR_NULL(ap_sta)) {
1333 ret = -EINVAL;
1334 goto out_noreset;
1335 }
1336
1337 ret = iwl_mvm_sta_ensure_queue(
1338 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]);
1339 if (ret)
1340 goto out_noreset;
1341
1342 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1343 vif, mvmvif, ap_sta);
1344 if (ret)
1345 goto out_noreset;
1346 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1347 vif, mvmvif, mvm_link, ap_sta);
1348 if (ret)
1349 goto out;
1350
1351 mvm->net_detect = false;
1352 }
1353
1354 ret = iwl_mvm_power_update_device(mvm);
1355 if (ret)
1356 goto out;
1357
1358 ret = iwl_mvm_power_update_mac(mvm);
1359 if (ret)
1360 goto out;
1361
1362 #ifdef CONFIG_IWLWIFI_DEBUGFS
1363 if (mvm->d3_wake_sysassert)
1364 d3_cfg_cmd_data.wakeup_flags |=
1365 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1366 #endif
1367
1368 /*
1369 * Prior to 9000 device family the driver needs to stop the dbg
1370 * recording before entering D3. In later devices the FW stops the
1371 * recording automatically.
1372 */
1373 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1374 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1375
1376 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1377
1378 /* must be last -- this switches firmware state */
1379 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1380 if (ret)
1381 goto out;
1382 #ifdef CONFIG_IWLWIFI_DEBUGFS
1383 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1384 if (len >= sizeof(u32)) {
1385 mvm->d3_test_pme_ptr =
1386 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1387 }
1388 #endif
1389 iwl_free_resp(&d3_cfg_cmd);
1390
1391 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1392
1393 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1394 out:
1395 if (ret < 0) {
1396 iwl_mvm_free_nd(mvm);
1397
1398 if (!unified_image) {
1399 if (mvm->fw_restart > 0) {
1400 mvm->fw_restart--;
1401 ieee80211_restart_hw(mvm->hw);
1402 }
1403 }
1404
1405 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1406 }
1407 out_noreset:
1408 mutex_unlock(&mvm->mutex);
1409
1410 return ret;
1411 }
1412
1413 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1414 {
1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1416
1417 iwl_mvm_pause_tcm(mvm, true);
1418
1419 mutex_lock(&mvm->mutex);
1420 iwl_fw_runtime_suspend(&mvm->fwrt);
1421 mutex_unlock(&mvm->mutex);
1422
1423 return __iwl_mvm_suspend(hw, wowlan, false);
1424 }
1425
1426 struct iwl_multicast_key_data {
1427 u8 key[WOWLAN_KEY_MAX_SIZE];
1428 u8 len;
1429 u8 flags;
1430 u8 id;
1431 u8 ipn[6];
1432 };
1433
1434 /* converted data from the different status responses */
1435 struct iwl_wowlan_status_data {
1436 u64 replay_ctr;
1437 u32 num_of_gtk_rekeys;
1438 u32 received_beacons;
1439 u32 wakeup_reasons;
1440 u32 wake_packet_length;
1441 u32 wake_packet_bufsize;
1442 u16 pattern_number;
1443 u16 non_qos_seq_ctr;
1444 u16 qos_seq_ctr[8];
1445 u8 tid_tear_down;
1446 u8 tid_offloaded_tx;
1447
1448 struct {
1449 /* including RX MIC key for TKIP */
1450 u8 key[WOWLAN_KEY_MAX_SIZE];
1451 u8 len;
1452 u8 flags;
1453 u8 id;
1454 } gtk[WOWLAN_GTK_KEYS_NUM];
1455
1456 struct {
1457 /*
1458 * We store both the TKIP and AES representations
1459 * coming from the firmware because we decode the
1460 * data from there before we iterate the keys and
1461 * know which one we need.
1462 */
1463 struct {
1464 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1465 } tkip, aes;
1466
1467 /*
1468 * We use -1 for when we have valid data but don't know
1469 * the key ID from firmware, and thus it needs to be
1470 * installed with the last key (depending on rekeying).
1471 */
1472 s8 key_id;
1473 bool valid;
1474 } gtk_seq[2];
1475
1476 struct {
1477 /* Same as above */
1478 struct {
1479 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1480 u64 tx_pn;
1481 } tkip, aes;
1482 } ptk;
1483
1484 struct iwl_multicast_key_data igtk;
1485 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM];
1486
1487 int num_mlo_keys;
1488 struct iwl_wowlan_mlo_gtk mlo_keys[WOWLAN_MAX_MLO_KEYS];
1489
1490 u8 *wake_packet;
1491 };
1492
1493 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1494 struct ieee80211_vif *vif,
1495 struct iwl_wowlan_status_data *status)
1496 {
1497 struct sk_buff *pkt = NULL;
1498 struct cfg80211_wowlan_wakeup wakeup = {
1499 .pattern_idx = -1,
1500 };
1501 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1502 u32 reasons = status->wakeup_reasons;
1503
1504 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1505 wakeup_report = NULL;
1506 goto report;
1507 }
1508
1509 pm_wakeup_event(mvm->dev, 0);
1510
1511 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1512 wakeup.magic_pkt = true;
1513
1514 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1515 wakeup.pattern_idx =
1516 status->pattern_number;
1517
1518 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1519 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH |
1520 IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE))
1521 wakeup.disconnect = true;
1522
1523 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1524 wakeup.gtk_rekey_failure = true;
1525
1526 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1527 wakeup.rfkill_release = true;
1528
1529 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1530 wakeup.eap_identity_req = true;
1531
1532 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1533 wakeup.four_way_handshake = true;
1534
1535 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1536 wakeup.tcp_connlost = true;
1537
1538 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1539 wakeup.tcp_nomoretokens = true;
1540
1541 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1542 wakeup.tcp_match = true;
1543
1544 if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC)
1545 wakeup.unprot_deauth_disassoc = true;
1546
1547 if (status->wake_packet) {
1548 int pktsize = status->wake_packet_bufsize;
1549 int pktlen = status->wake_packet_length;
1550 const u8 *pktdata = status->wake_packet;
1551 const struct ieee80211_hdr *hdr = (const void *)pktdata;
1552 int truncated = pktlen - pktsize;
1553
1554 /* this would be a firmware bug */
1555 if (WARN_ON_ONCE(truncated < 0))
1556 truncated = 0;
1557
1558 if (ieee80211_is_data(hdr->frame_control)) {
1559 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1560 int ivlen = 0, icvlen = 4; /* also FCS */
1561
1562 pkt = alloc_skb(pktsize, GFP_KERNEL);
1563 if (!pkt)
1564 goto report;
1565
1566 skb_put_data(pkt, pktdata, hdrlen);
1567 pktdata += hdrlen;
1568 pktsize -= hdrlen;
1569
1570 if (ieee80211_has_protected(hdr->frame_control)) {
1571 /*
1572 * This is unlocked and using gtk_i(c)vlen,
1573 * but since everything is under RTNL still
1574 * that's not really a problem - changing
1575 * it would be difficult.
1576 */
1577 if (is_multicast_ether_addr(hdr->addr1)) {
1578 ivlen = mvm->gtk_ivlen;
1579 icvlen += mvm->gtk_icvlen;
1580 } else {
1581 ivlen = mvm->ptk_ivlen;
1582 icvlen += mvm->ptk_icvlen;
1583 }
1584 }
1585
1586 /* if truncated, FCS/ICV is (partially) gone */
1587 if (truncated >= icvlen) {
1588 icvlen = 0;
1589 truncated -= icvlen;
1590 } else {
1591 icvlen -= truncated;
1592 truncated = 0;
1593 }
1594
1595 pktsize -= ivlen + icvlen;
1596 pktdata += ivlen;
1597
1598 skb_put_data(pkt, pktdata, pktsize);
1599
1600 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1601 goto report;
1602 wakeup.packet = pkt->data;
1603 wakeup.packet_present_len = pkt->len;
1604 wakeup.packet_len = pkt->len - truncated;
1605 wakeup.packet_80211 = false;
1606 } else {
1607 int fcslen = 4;
1608
1609 if (truncated >= 4) {
1610 truncated -= 4;
1611 fcslen = 0;
1612 } else {
1613 fcslen -= truncated;
1614 truncated = 0;
1615 }
1616 pktsize -= fcslen;
1617 wakeup.packet = status->wake_packet;
1618 wakeup.packet_present_len = pktsize;
1619 wakeup.packet_len = pktlen - truncated;
1620 wakeup.packet_80211 = true;
1621 }
1622 }
1623
1624 report:
1625 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1626 kfree_skb(pkt);
1627 }
1628
1629 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1630 {
1631 u64 pn = le64_to_cpu(le_pn);
1632
1633 seq->ccmp.pn[0] = pn >> 40;
1634 seq->ccmp.pn[1] = pn >> 32;
1635 seq->ccmp.pn[2] = pn >> 24;
1636 seq->ccmp.pn[3] = pn >> 16;
1637 seq->ccmp.pn[4] = pn >> 8;
1638 seq->ccmp.pn[5] = pn;
1639 }
1640
1641 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1642 struct ieee80211_key_seq *seq)
1643 {
1644 iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1645 }
1646
1647 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1648 {
1649 u64 pn = le64_to_cpu(le_pn);
1650
1651 seq->tkip.iv16 = (u16)pn;
1652 seq->tkip.iv32 = (u32)(pn >> 16);
1653 }
1654
1655 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1656 struct ieee80211_key_seq *seq)
1657 {
1658 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1659 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1660 }
1661
1662 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1663 struct ieee80211_key_seq *seq)
1664 {
1665 int tid;
1666
1667 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1668 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1669 }
1670
1671 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1672 struct iwl_wowlan_status_data *status,
1673 struct ieee80211_sta *sta,
1674 struct ieee80211_key_conf *key)
1675 {
1676 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1677 struct iwl_mvm_key_pn *ptk_pn;
1678 int tid;
1679
1680 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
1681
1682 if (!iwl_mvm_has_new_rx_api(mvm))
1683 return;
1684
1685
1686 rcu_read_lock();
1687 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1688 if (WARN_ON(!ptk_pn)) {
1689 rcu_read_unlock();
1690 return;
1691 }
1692
1693 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1694 int i;
1695
1696 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1697 memcpy(ptk_pn->q[i].pn[tid],
1698 status->ptk.aes.seq[tid].ccmp.pn,
1699 IEEE80211_CCMP_PN_LEN);
1700 }
1701 rcu_read_unlock();
1702 }
1703
1704 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1705 union iwl_all_tsc_rsc *sc)
1706 {
1707 int i;
1708
1709 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1710 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1711
1712 /* GTK RX counters */
1713 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1714 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
1715 &status->gtk_seq[0].tkip.seq[i]);
1716 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
1717 &status->gtk_seq[0].aes.seq[i]);
1718 }
1719 status->gtk_seq[0].valid = true;
1720 status->gtk_seq[0].key_id = -1;
1721
1722 /* PTK TX counter */
1723 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1724 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1725 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1726
1727 /* PTK RX counters */
1728 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1729 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1730 &status->ptk.tkip.seq[i]);
1731 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1732 &status->ptk.aes.seq[i]);
1733 }
1734 }
1735
1736 static void
1737 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1738 struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1739 unsigned int idx, unsigned int key_id)
1740 {
1741 int tid;
1742
1743 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1744 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1745 &status->gtk_seq[idx].tkip.seq[tid]);
1746 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1747 &status->gtk_seq[idx].aes.seq[tid]);
1748 }
1749
1750 status->gtk_seq[idx].valid = true;
1751 status->gtk_seq[idx].key_id = key_id;
1752 }
1753
1754 static void
1755 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1756 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1757 {
1758 int i, tid;
1759
1760 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1761 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1762 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1763
1764 /* GTK RX counters */
1765 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1766 u8 entry = sc->mcast_key_id_map[i];
1767
1768 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1769 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1770 entry, i);
1771 }
1772
1773 /* PTK TX counters not needed, assigned in device */
1774
1775 /* PTK RX counters */
1776 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1777 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1778 &status->ptk.tkip.seq[tid]);
1779 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1780 &status->ptk.aes.seq[tid]);
1781 }
1782 }
1783
1784 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1785 struct iwl_wowlan_status_data *status,
1786 int idx)
1787 {
1788 switch (key->cipher) {
1789 case WLAN_CIPHER_SUITE_CCMP:
1790 case WLAN_CIPHER_SUITE_GCMP:
1791 case WLAN_CIPHER_SUITE_GCMP_256:
1792 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
1793 break;
1794 case WLAN_CIPHER_SUITE_TKIP:
1795 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
1796 break;
1797 default:
1798 WARN_ON(1);
1799 }
1800 }
1801
1802 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1803 struct iwl_wowlan_status_data *status,
1804 bool installed)
1805 {
1806 int i;
1807
1808 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1809 if (!status->gtk_seq[i].valid)
1810 continue;
1811
1812 /* Handle the case where we know the key ID */
1813 if (status->gtk_seq[i].key_id == key->keyidx) {
1814 s8 new_key_id = -1;
1815
1816 if (status->num_of_gtk_rekeys)
1817 new_key_id = status->gtk[0].flags &
1818 IWL_WOWLAN_GTK_IDX_MASK;
1819
1820 /* Don't install a new key's value to an old key */
1821 if (new_key_id != key->keyidx)
1822 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1823 continue;
1824 }
1825
1826 /* handle the case where we didn't, last key only */
1827 if (status->gtk_seq[i].key_id == -1 &&
1828 (!status->num_of_gtk_rekeys || installed))
1829 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1830 }
1831 }
1832
1833 struct iwl_mvm_d3_gtk_iter_data {
1834 struct iwl_mvm *mvm;
1835 struct iwl_wowlan_status_data *status;
1836 u32 gtk_cipher, igtk_cipher, bigtk_cipher;
1837 bool unhandled_cipher, igtk_support, bigtk_support;
1838 int num_keys;
1839 };
1840
1841 static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw,
1842 struct ieee80211_vif *vif,
1843 struct ieee80211_sta *sta,
1844 struct ieee80211_key_conf *key,
1845 void *_data)
1846 {
1847 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1848 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
1849
1850 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id)
1851 return;
1852
1853 if (data->unhandled_cipher)
1854 return;
1855
1856 switch (key->cipher) {
1857 case WLAN_CIPHER_SUITE_WEP40:
1858 case WLAN_CIPHER_SUITE_WEP104:
1859 /* ignore WEP completely, nothing to do */
1860 return;
1861 case WLAN_CIPHER_SUITE_CCMP:
1862 case WLAN_CIPHER_SUITE_GCMP:
1863 case WLAN_CIPHER_SUITE_GCMP_256:
1864 case WLAN_CIPHER_SUITE_TKIP:
1865 /* we support these */
1866 data->gtk_cipher = key->cipher;
1867 break;
1868 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1869 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1870 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1871 case WLAN_CIPHER_SUITE_AES_CMAC:
1872 /* we support these */
1873 if (data->igtk_support &&
1874 (key->keyidx == 4 || key->keyidx == 5)) {
1875 data->igtk_cipher = key->cipher;
1876 } else if (data->bigtk_support &&
1877 (key->keyidx == 6 || key->keyidx == 7)) {
1878 data->bigtk_cipher = key->cipher;
1879 } else {
1880 data->unhandled_cipher = true;
1881 return;
1882 }
1883 break;
1884 default:
1885 /* everything else - disconnect from AP */
1886 data->unhandled_cipher = true;
1887 return;
1888 }
1889
1890 data->num_keys++;
1891 }
1892
1893 static void
1894 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key,
1895 struct ieee80211_key_seq *seq, u32 cipher)
1896 {
1897 switch (cipher) {
1898 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1899 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1900 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn));
1901 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn));
1902 break;
1903 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1904 case WLAN_CIPHER_SUITE_AES_CMAC:
1905 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn));
1906 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn));
1907 break;
1908 default:
1909 WARN_ON(1);
1910 }
1911 }
1912
1913 static void
1914 iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status,
1915 struct ieee80211_key_conf *key,
1916 struct iwl_multicast_key_data *key_data)
1917 {
1918 if (status->num_of_gtk_rekeys && key_data->len) {
1919 /* remove rekeyed key */
1920 ieee80211_remove_key(key);
1921 } else {
1922 struct ieee80211_key_seq seq;
1923
1924 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data,
1925 &seq,
1926 key->cipher);
1927 ieee80211_set_key_rx_seq(key, 0, &seq);
1928 }
1929 }
1930
1931 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1932 struct ieee80211_vif *vif,
1933 struct ieee80211_sta *sta,
1934 struct ieee80211_key_conf *key,
1935 void *_data)
1936 {
1937 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1938 struct iwl_wowlan_status_data *status = data->status;
1939 s8 keyidx;
1940 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
1941
1942 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id)
1943 return;
1944
1945 if (data->unhandled_cipher)
1946 return;
1947
1948 switch (key->cipher) {
1949 case WLAN_CIPHER_SUITE_WEP40:
1950 case WLAN_CIPHER_SUITE_WEP104:
1951 /* ignore WEP completely, nothing to do */
1952 return;
1953 case WLAN_CIPHER_SUITE_CCMP:
1954 case WLAN_CIPHER_SUITE_GCMP:
1955 case WLAN_CIPHER_SUITE_GCMP_256:
1956 if (sta) {
1957 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1958 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
1959 return;
1960 }
1961 fallthrough;
1962 case WLAN_CIPHER_SUITE_TKIP:
1963 if (sta) {
1964 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1965 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
1966 return;
1967 }
1968 keyidx = key->keyidx;
1969 /* The current key is always sent by the FW, even if it wasn't
1970 * rekeyed during D3.
1971 * We remove an existing key if it has the same index as
1972 * a new key
1973 */
1974 if (status->num_of_gtk_rekeys &&
1975 ((status->gtk[0].len && keyidx == status->gtk[0].id) ||
1976 (status->gtk[1].len && keyidx == status->gtk[1].id))) {
1977 ieee80211_remove_key(key);
1978 } else {
1979 iwl_mvm_set_key_rx_seq(key, data->status, false);
1980 }
1981 break;
1982 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1983 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1984 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1985 case WLAN_CIPHER_SUITE_AES_CMAC:
1986 if (key->keyidx == 4 || key->keyidx == 5) {
1987 iwl_mvm_d3_update_igtk_bigtk(status, key,
1988 &status->igtk);
1989 }
1990 if (key->keyidx == 6 || key->keyidx == 7) {
1991 u8 idx = key->keyidx == status->bigtk[1].id;
1992
1993 iwl_mvm_d3_update_igtk_bigtk(status, key,
1994 &status->bigtk[idx]);
1995 }
1996 }
1997 }
1998
1999 struct iwl_mvm_d3_mlo_old_keys {
2000 u32 cipher[IEEE80211_MLD_MAX_NUM_LINKS][WOWLAN_MLO_GTK_KEY_NUM_TYPES];
2001 struct ieee80211_key_conf *key[IEEE80211_MLD_MAX_NUM_LINKS][8];
2002 };
2003
2004 static void iwl_mvm_mlo_key_ciphers(struct ieee80211_hw *hw,
2005 struct ieee80211_vif *vif,
2006 struct ieee80211_sta *sta,
2007 struct ieee80211_key_conf *key,
2008 void *data)
2009 {
2010 struct iwl_mvm_d3_mlo_old_keys *old_keys = data;
2011 enum iwl_wowlan_mlo_gtk_type key_type;
2012
2013 if (key->link_id < 0)
2014 return;
2015
2016 if (WARN_ON(key->link_id >= IEEE80211_MLD_MAX_NUM_LINKS ||
2017 key->keyidx >= 8))
2018 return;
2019
2020 if (WARN_ON(old_keys->key[key->link_id][key->keyidx]))
2021 return;
2022
2023 switch (key->cipher) {
2024 case WLAN_CIPHER_SUITE_CCMP:
2025 case WLAN_CIPHER_SUITE_GCMP:
2026 case WLAN_CIPHER_SUITE_GCMP_256:
2027 key_type = WOWLAN_MLO_GTK_KEY_TYPE_GTK;
2028 break;
2029 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2030 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2031 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2032 case WLAN_CIPHER_SUITE_AES_CMAC:
2033 if (key->keyidx == 4 || key->keyidx == 5) {
2034 key_type = WOWLAN_MLO_GTK_KEY_TYPE_IGTK;
2035 break;
2036 } else if (key->keyidx == 6 || key->keyidx == 7) {
2037 key_type = WOWLAN_MLO_GTK_KEY_TYPE_BIGTK;
2038 break;
2039 }
2040 return;
2041 default:
2042 /* ignore WEP/TKIP or unknown ciphers */
2043 return;
2044 }
2045
2046 old_keys->cipher[key->link_id][key_type] = key->cipher;
2047 old_keys->key[key->link_id][key->keyidx] = key;
2048 }
2049
2050 static bool iwl_mvm_mlo_gtk_rekey(struct iwl_wowlan_status_data *status,
2051 struct ieee80211_vif *vif,
2052 struct iwl_mvm *mvm)
2053 {
2054 int i;
2055 struct iwl_mvm_d3_mlo_old_keys *old_keys;
2056 bool ret = true;
2057
2058 IWL_DEBUG_WOWLAN(mvm, "Num of MLO Keys: %d\n", status->num_mlo_keys);
2059 if (!status->num_mlo_keys)
2060 return true;
2061
2062 old_keys = kzalloc(sizeof(*old_keys), GFP_KERNEL);
2063 if (!old_keys)
2064 return false;
2065
2066 /* find the cipher for each mlo key */
2067 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_mlo_key_ciphers, old_keys);
2068
2069 for (i = 0; i < status->num_mlo_keys; i++) {
2070 struct iwl_wowlan_mlo_gtk *mlo_key = &status->mlo_keys[i];
2071 struct ieee80211_key_conf *key, *old_key;
2072 struct ieee80211_key_seq seq;
2073 struct {
2074 struct ieee80211_key_conf conf;
2075 u8 key[32];
2076 } conf = {};
2077 u16 flags = le16_to_cpu(mlo_key->flags);
2078 int j, link_id, key_id, key_type;
2079
2080 link_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_LINK_ID_MSK);
2081 key_id = u16_get_bits(flags, WOWLAN_MLO_GTK_FLAG_KEY_ID_MSK);
2082 key_type = u16_get_bits(flags,
2083 WOWLAN_MLO_GTK_FLAG_KEY_TYPE_MSK);
2084
2085 if (!(vif->valid_links & BIT(link_id)))
2086 continue;
2087
2088 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS ||
2089 key_id >= 8 ||
2090 key_type >= WOWLAN_MLO_GTK_KEY_NUM_TYPES))
2091 continue;
2092
2093 conf.conf.cipher = old_keys->cipher[link_id][key_type];
2094 /* WARN_ON? */
2095 if (!conf.conf.cipher)
2096 continue;
2097
2098 conf.conf.keylen = 0;
2099 switch (conf.conf.cipher) {
2100 case WLAN_CIPHER_SUITE_CCMP:
2101 case WLAN_CIPHER_SUITE_GCMP:
2102 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2103 break;
2104 case WLAN_CIPHER_SUITE_GCMP_256:
2105 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
2106 break;
2107 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2108 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2109 break;
2110 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2111 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2112 break;
2113 case WLAN_CIPHER_SUITE_AES_CMAC:
2114 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2115 break;
2116 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2117 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2118 break;
2119 }
2120
2121 if (WARN_ON(!conf.conf.keylen ||
2122 conf.conf.keylen > sizeof(conf.key)))
2123 continue;
2124
2125 memcpy(conf.conf.key, mlo_key->key, conf.conf.keylen);
2126 conf.conf.keyidx = key_id;
2127
2128 old_key = old_keys->key[link_id][key_id];
2129 if (old_key) {
2130 IWL_DEBUG_WOWLAN(mvm,
2131 "Remove MLO key id %d, link id %d\n",
2132 key_id, link_id);
2133 ieee80211_remove_key(old_key);
2134 }
2135
2136 IWL_DEBUG_WOWLAN(mvm, "Add MLO key id %d, link id %d\n",
2137 key_id, link_id);
2138 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2139 if (WARN_ON(IS_ERR(key))) {
2140 ret = false;
2141 goto out;
2142 }
2143
2144 /*
2145 * mac80211 expects the pn in big-endian
2146 * also note that seq is a union of all cipher types
2147 * (ccmp, gcmp, cmac, gmac), and they all have the same
2148 * pn field (of length 6) so just copy it to ccmp.pn.
2149 */
2150 for (j = 5; j >= 0; j--)
2151 seq.ccmp.pn[5 - j] = mlo_key->pn[j];
2152
2153 /* group keys are non-QoS and use TID 0 */
2154 ieee80211_set_key_rx_seq(key, 0, &seq);
2155 }
2156
2157 out:
2158 kfree(old_keys);
2159 return ret;
2160 }
2161
2162 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status,
2163 struct ieee80211_vif *vif,
2164 struct iwl_mvm *mvm, u32 gtk_cipher)
2165 {
2166 int i, j;
2167 struct ieee80211_key_conf *key;
2168 struct {
2169 struct ieee80211_key_conf conf;
2170 u8 key[32];
2171 } conf = {
2172 .conf.cipher = gtk_cipher,
2173 };
2174 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
2175
2176 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
2177 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
2178 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
2179 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
2180 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key));
2181
2182 switch (gtk_cipher) {
2183 case WLAN_CIPHER_SUITE_CCMP:
2184 case WLAN_CIPHER_SUITE_GCMP:
2185 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2186 break;
2187 case WLAN_CIPHER_SUITE_GCMP_256:
2188 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
2189 break;
2190 case WLAN_CIPHER_SUITE_TKIP:
2191 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
2192 break;
2193 default:
2194 WARN_ON(1);
2195 }
2196
2197 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) {
2198 if (!status->gtk[i].len)
2199 continue;
2200
2201 conf.conf.keyidx = status->gtk[i].id;
2202 IWL_DEBUG_WOWLAN(mvm,
2203 "Received from FW GTK cipher %d, key index %d\n",
2204 conf.conf.cipher, conf.conf.keyidx);
2205 memcpy(conf.conf.key, status->gtk[i].key,
2206 sizeof(status->gtk[i].key));
2207
2208 key = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2209 if (IS_ERR(key))
2210 return false;
2211
2212 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) {
2213 if (!status->gtk_seq[j].valid ||
2214 status->gtk_seq[j].key_id != key->keyidx)
2215 continue;
2216 iwl_mvm_set_key_rx_seq_idx(key, status, j);
2217 break;
2218 }
2219 WARN_ON(j == ARRAY_SIZE(status->gtk_seq));
2220 }
2221
2222 return true;
2223 }
2224
2225 static bool
2226 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status,
2227 struct ieee80211_vif *vif, u32 cipher,
2228 struct iwl_multicast_key_data *key_data)
2229 {
2230 struct ieee80211_key_conf *key_config;
2231 struct {
2232 struct ieee80211_key_conf conf;
2233 u8 key[WOWLAN_KEY_MAX_SIZE];
2234 } conf = {
2235 .conf.cipher = cipher,
2236 .conf.keyidx = key_data->id,
2237 };
2238 struct ieee80211_key_seq seq;
2239 int link_id = vif->active_links ? __ffs(vif->active_links) : -1;
2240
2241 if (!key_data->len)
2242 return true;
2243
2244 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher);
2245
2246 switch (cipher) {
2247 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2248 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2249 break;
2250 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2251 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2252 break;
2253 case WLAN_CIPHER_SUITE_AES_CMAC:
2254 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2255 break;
2256 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2257 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2258 break;
2259 default:
2260 WARN_ON(1);
2261 }
2262 BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key));
2263 memcpy(conf.conf.key, key_data->key, conf.conf.keylen);
2264
2265 key_config = ieee80211_gtk_rekey_add(vif, &conf.conf, link_id);
2266 if (IS_ERR(key_config))
2267 return false;
2268 ieee80211_set_key_rx_seq(key_config, 0, &seq);
2269
2270 if (key_config->keyidx == 4 || key_config->keyidx == 5) {
2271 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2272 struct iwl_mvm_vif_link_info *mvm_link;
2273
2274 link_id = link_id < 0 ? 0 : link_id;
2275 mvm_link = mvmvif->link[link_id];
2276 mvm_link->igtk = key_config;
2277 }
2278
2279 return true;
2280 }
2281
2282 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm)
2283 {
2284 u8 notif_ver;
2285
2286 if (!fw_has_api(&mvm->fw->ucode_capa,
2287 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL))
2288 return 6;
2289
2290 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2291 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2292 WOWLAN_GET_STATUSES, 0);
2293 if (!notif_ver)
2294 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2295 WOWLAN_GET_STATUSES, 7);
2296
2297 return notif_ver;
2298 }
2299
2300 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
2301 struct ieee80211_vif *vif,
2302 struct iwl_wowlan_status_data *status)
2303 {
2304 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2305 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
2306 .mvm = mvm,
2307 .status = status,
2308 };
2309 int i;
2310 u32 disconnection_reasons =
2311 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
2312 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
2313
2314 if (!status || !vif->bss_conf.bssid)
2315 return false;
2316
2317 if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 ||
2318 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2319 WOWLAN_INFO_NOTIFICATION,
2320 0))
2321 gtkdata.igtk_support = true;
2322
2323 if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2324 WOWLAN_INFO_NOTIFICATION,
2325 0) >= 3)
2326 gtkdata.bigtk_support = true;
2327
2328 /* find last GTK that we used initially, if any */
2329 ieee80211_iter_keys(mvm->hw, vif,
2330 iwl_mvm_d3_find_last_keys, &gtkdata);
2331 /* not trying to keep connections with MFP/unhandled ciphers */
2332 if (gtkdata.unhandled_cipher)
2333 return false;
2334 if (!gtkdata.num_keys)
2335 goto out;
2336
2337 /*
2338 * invalidate all other GTKs that might still exist and update
2339 * the one that we used
2340 */
2341 ieee80211_iter_keys(mvm->hw, vif,
2342 iwl_mvm_d3_update_keys, &gtkdata);
2343
2344 if (status->num_of_gtk_rekeys) {
2345 __be64 replay_ctr = cpu_to_be64(status->replay_ctr);
2346
2347 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
2348 status->num_of_gtk_rekeys);
2349
2350 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher))
2351 return false;
2352
2353 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2354 gtkdata.igtk_cipher,
2355 &status->igtk))
2356 return false;
2357
2358 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) {
2359 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2360 gtkdata.bigtk_cipher,
2361 &status->bigtk[i]))
2362 return false;
2363 }
2364
2365 if (!iwl_mvm_mlo_gtk_rekey(status, vif, mvm))
2366 return false;
2367
2368 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
2369 (void *)&replay_ctr, GFP_KERNEL);
2370 }
2371
2372 out:
2373 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2374 WOWLAN_GET_STATUSES,
2375 IWL_FW_CMD_VER_UNKNOWN) < 10) {
2376 mvmvif->seqno_valid = true;
2377 /* +0x10 because the set API expects next-to-use, not last-used */
2378 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
2379 }
2380
2381 if (status->wakeup_reasons & disconnection_reasons)
2382 return false;
2383
2384 return true;
2385 }
2386
2387 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2388 struct iwl_wowlan_gtk_status_v2 *data)
2389 {
2390 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key));
2391 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2392 sizeof(data->tkip_mic_key) >
2393 sizeof(status->gtk[0].key));
2394
2395 status->gtk[0].len = data->key_len;
2396 status->gtk[0].flags = data->key_flags;
2397
2398 memcpy(status->gtk[0].key, data->key, sizeof(data->key));
2399
2400 /* if it's as long as the TKIP encryption key, copy MIC key */
2401 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2402 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2403 data->tkip_mic_key, sizeof(data->tkip_mic_key));
2404 }
2405
2406 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2407 struct iwl_wowlan_gtk_status_v3 *data)
2408 {
2409 int data_idx, status_idx = 0;
2410
2411 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key));
2412 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2413 sizeof(data[0].tkip_mic_key) >
2414 sizeof(status->gtk[0].key));
2415 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM);
2416 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) {
2417 if (!(data[data_idx].key_len))
2418 continue;
2419 status->gtk[status_idx].len = data[data_idx].key_len;
2420 status->gtk[status_idx].flags = data[data_idx].key_flags;
2421 status->gtk[status_idx].id = status->gtk[status_idx].flags &
2422 IWL_WOWLAN_GTK_IDX_MASK;
2423
2424 memcpy(status->gtk[status_idx].key, data[data_idx].key,
2425 sizeof(data[data_idx].key));
2426
2427 /* if it's as long as the TKIP encryption key, copy MIC key */
2428 if (status->gtk[status_idx].len ==
2429 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2430 memcpy(status->gtk[status_idx].key +
2431 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2432 data[data_idx].tkip_mic_key,
2433 sizeof(data[data_idx].tkip_mic_key));
2434 status_idx++;
2435 }
2436 }
2437
2438 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2439 struct iwl_wowlan_igtk_status *data)
2440 {
2441 int i;
2442
2443 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2444 BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn));
2445
2446 if (!data->key_len)
2447 return;
2448
2449 status->igtk.len = data->key_len;
2450 status->igtk.flags = data->key_flags;
2451 status->igtk.id = u32_get_bits(data->key_flags,
2452 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2453 + WOWLAN_IGTK_MIN_INDEX;
2454
2455 memcpy(status->igtk.key, data->key, sizeof(data->key));
2456
2457 /* mac80211 expects big endian for memcmp() to work, convert */
2458 for (i = 0; i < sizeof(data->ipn); i++)
2459 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1];
2460 }
2461
2462 static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status,
2463 const struct iwl_wowlan_igtk_status *data)
2464 {
2465 int data_idx, status_idx = 0;
2466
2467 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM);
2468
2469 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) {
2470 if (!data[data_idx].key_len)
2471 continue;
2472
2473 status->bigtk[status_idx].len = data[data_idx].key_len;
2474 status->bigtk[status_idx].flags = data[data_idx].key_flags;
2475 status->bigtk[status_idx].id =
2476 u32_get_bits(data[data_idx].key_flags,
2477 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2478 + WOWLAN_BIGTK_MIN_INDEX;
2479
2480 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) <
2481 sizeof(data[data_idx].key));
2482 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) <
2483 sizeof(data[data_idx].ipn));
2484
2485 memcpy(status->bigtk[status_idx].key, data[data_idx].key,
2486 sizeof(data[data_idx].key));
2487 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn,
2488 sizeof(data[data_idx].ipn));
2489 status_idx++;
2490 }
2491 }
2492
2493 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
2494 struct iwl_wowlan_info_notif *data,
2495 struct iwl_wowlan_status_data *status,
2496 u32 len)
2497 {
2498 u32 expected_len = sizeof(*data) +
2499 data->num_mlo_link_keys * sizeof(status->mlo_keys[0]);
2500
2501 if (!data) {
2502 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2503 status = NULL;
2504 return;
2505 }
2506
2507 if (len < expected_len) {
2508 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2509 status = NULL;
2510 return;
2511 }
2512
2513 if (mvm->fast_resume)
2514 return;
2515
2516 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2517 iwl_mvm_convert_gtk_v3(status, data->gtk);
2518 iwl_mvm_convert_igtk(status, &data->igtk[0]);
2519 iwl_mvm_convert_bigtk(status, data->bigtk);
2520 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2521 status->pattern_number = le16_to_cpu(data->pattern_number);
2522 status->tid_offloaded_tx = data->tid_offloaded_tx;
2523 if (IWL_FW_CHECK(mvm,
2524 data->tid_offloaded_tx >=
2525 ARRAY_SIZE(status->qos_seq_ctr),
2526 "tid_offloaded_tx is out of bound %d\n",
2527 data->tid_offloaded_tx))
2528 data->tid_offloaded_tx = 0;
2529 status->qos_seq_ctr[data->tid_offloaded_tx] =
2530 le16_to_cpu(data->qos_seq_ctr);
2531 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2532 status->num_of_gtk_rekeys =
2533 le32_to_cpu(data->num_of_gtk_rekeys);
2534 status->received_beacons = le32_to_cpu(data->received_beacons);
2535 status->tid_tear_down = data->tid_tear_down;
2536
2537 if (data->num_mlo_link_keys) {
2538 status->num_mlo_keys = data->num_mlo_link_keys;
2539 if (IWL_FW_CHECK(mvm,
2540 status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS,
2541 "Too many mlo keys: %d, max %d\n",
2542 status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS))
2543 status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS;
2544 memcpy(status->mlo_keys, data->mlo_gtks,
2545 status->num_mlo_keys * sizeof(status->mlo_keys[0]));
2546 }
2547 }
2548
2549 static void
2550 iwl_mvm_parse_wowlan_info_notif_v4(struct iwl_mvm *mvm,
2551 struct iwl_wowlan_info_notif_v4 *data,
2552 struct iwl_wowlan_status_data *status,
2553 u32 len, bool has_mlo_keys)
2554 {
2555 u32 i;
2556 u32 expected_len = sizeof(*data);
2557
2558 if (!data) {
2559 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2560 status = NULL;
2561 return;
2562 }
2563
2564 if (has_mlo_keys)
2565 expected_len += (data->num_mlo_link_keys *
2566 sizeof(status->mlo_keys[0]));
2567
2568 if (len < expected_len) {
2569 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2570 status = NULL;
2571 return;
2572 }
2573
2574 if (mvm->fast_resume)
2575 return;
2576
2577 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2578 iwl_mvm_convert_gtk_v3(status, data->gtk);
2579 iwl_mvm_convert_igtk(status, &data->igtk[0]);
2580 iwl_mvm_convert_bigtk(status, data->bigtk);
2581 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2582 status->pattern_number = le16_to_cpu(data->pattern_number);
2583 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2584 status->qos_seq_ctr[i] =
2585 le16_to_cpu(data->qos_seq_ctr[i]);
2586 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2587 status->num_of_gtk_rekeys =
2588 le32_to_cpu(data->num_of_gtk_rekeys);
2589 status->received_beacons = le32_to_cpu(data->received_beacons);
2590 status->tid_tear_down = data->tid_tear_down;
2591
2592 if (has_mlo_keys && data->num_mlo_link_keys) {
2593 status->num_mlo_keys = data->num_mlo_link_keys;
2594 if (IWL_FW_CHECK(mvm,
2595 status->num_mlo_keys > WOWLAN_MAX_MLO_KEYS,
2596 "Too many mlo keys: %d, max %d\n",
2597 status->num_mlo_keys, WOWLAN_MAX_MLO_KEYS))
2598 status->num_mlo_keys = WOWLAN_MAX_MLO_KEYS;
2599 memcpy(status->mlo_keys, data->mlo_gtks,
2600 status->num_mlo_keys * sizeof(status->mlo_keys[0]));
2601 }
2602 }
2603
2604 static void
2605 iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm,
2606 struct iwl_wowlan_info_notif_v2 *data,
2607 struct iwl_wowlan_status_data *status,
2608 u32 len)
2609 {
2610 u32 i;
2611
2612 if (!data) {
2613 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2614 status = NULL;
2615 return;
2616 }
2617
2618 if (len < sizeof(*data)) {
2619 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2620 status = NULL;
2621 return;
2622 }
2623
2624 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2625 iwl_mvm_convert_gtk_v3(status, data->gtk);
2626 iwl_mvm_convert_igtk(status, &data->igtk[0]);
2627 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2628 status->pattern_number = le16_to_cpu(data->pattern_number);
2629 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2630 status->qos_seq_ctr[i] =
2631 le16_to_cpu(data->qos_seq_ctr[i]);
2632 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2633 status->num_of_gtk_rekeys =
2634 le32_to_cpu(data->num_of_gtk_rekeys);
2635 status->received_beacons = le32_to_cpu(data->received_beacons);
2636 status->tid_tear_down = data->tid_tear_down;
2637 }
2638
2639 /* Occasionally, templates would be nice. This is one of those times ... */
2640 #define iwl_mvm_parse_wowlan_status_common(_ver) \
2641 static struct iwl_wowlan_status_data * \
2642 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
2643 struct iwl_wowlan_status_ ##_ver *data,\
2644 int len) \
2645 { \
2646 struct iwl_wowlan_status_data *status; \
2647 int data_size, i; \
2648 \
2649 if (len < sizeof(*data)) { \
2650 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
2651 return NULL; \
2652 } \
2653 \
2654 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
2655 if (len != sizeof(*data) + data_size) { \
2656 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
2657 return NULL; \
2658 } \
2659 \
2660 status = kzalloc(sizeof(*status), GFP_KERNEL); \
2661 if (!status) \
2662 return NULL; \
2663 \
2664 /* copy all the common fields */ \
2665 status->replay_ctr = le64_to_cpu(data->replay_ctr); \
2666 status->pattern_number = le16_to_cpu(data->pattern_number); \
2667 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \
2668 for (i = 0; i < 8; i++) \
2669 status->qos_seq_ctr[i] = \
2670 le16_to_cpu(data->qos_seq_ctr[i]); \
2671 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \
2672 status->num_of_gtk_rekeys = \
2673 le32_to_cpu(data->num_of_gtk_rekeys); \
2674 status->received_beacons = le32_to_cpu(data->received_beacons); \
2675 status->wake_packet_length = \
2676 le32_to_cpu(data->wake_packet_length); \
2677 status->wake_packet_bufsize = \
2678 le32_to_cpu(data->wake_packet_bufsize); \
2679 if (status->wake_packet_bufsize) { \
2680 status->wake_packet = \
2681 kmemdup(data->wake_packet, \
2682 status->wake_packet_bufsize, \
2683 GFP_KERNEL); \
2684 if (!status->wake_packet) { \
2685 kfree(status); \
2686 return NULL; \
2687 } \
2688 } else { \
2689 status->wake_packet = NULL; \
2690 } \
2691 \
2692 return status; \
2693 }
2694
2695 iwl_mvm_parse_wowlan_status_common(v6)
2696 iwl_mvm_parse_wowlan_status_common(v7)
2697 iwl_mvm_parse_wowlan_status_common(v9)
2698 iwl_mvm_parse_wowlan_status_common(v12)
2699
2700 static struct iwl_wowlan_status_data *
2701 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2702 {
2703 struct iwl_wowlan_status_data *status;
2704 struct iwl_wowlan_get_status_cmd get_status_cmd = {
2705 .sta_id = cpu_to_le32(sta_id),
2706 };
2707 struct iwl_host_cmd cmd = {
2708 .id = WOWLAN_GET_STATUSES,
2709 .flags = CMD_WANT_SKB,
2710 .data = { &get_status_cmd, },
2711 .len = { sizeof(get_status_cmd), },
2712 };
2713 int ret, len;
2714 u8 notif_ver;
2715 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
2716 IWL_FW_CMD_VER_UNKNOWN);
2717
2718 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2719 cmd.len[0] = 0;
2720
2721 lockdep_assert_held(&mvm->mutex);
2722
2723 ret = iwl_mvm_send_cmd(mvm, &cmd);
2724 if (ret) {
2725 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2726 return ERR_PTR(ret);
2727 }
2728
2729 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2730
2731 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2732 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm);
2733
2734 if (notif_ver < 7) {
2735 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2736
2737 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
2738 if (!status)
2739 goto out_free_resp;
2740
2741 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
2742 sizeof(status->gtk[0].key));
2743 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2744 sizeof(v6->gtk.tkip_mic_key) >
2745 sizeof(status->gtk[0].key));
2746
2747 /* copy GTK info to the right place */
2748 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
2749 sizeof(v6->gtk.decrypt_key));
2750 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2751 v6->gtk.tkip_mic_key,
2752 sizeof(v6->gtk.tkip_mic_key));
2753
2754 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2755
2756 /* hardcode the key length to 16 since v6 only supports 16 */
2757 status->gtk[0].len = 16;
2758
2759 /*
2760 * The key index only uses 2 bits (values 0 to 3) and
2761 * we always set bit 7 which means this is the
2762 * currently used key.
2763 */
2764 status->gtk[0].flags = v6->gtk.key_index | BIT(7);
2765 } else if (notif_ver == 7) {
2766 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2767
2768 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
2769 if (!status)
2770 goto out_free_resp;
2771
2772 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2773 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
2774 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
2775 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
2776 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
2777
2778 /* these three command versions have same layout and size, the
2779 * difference is only in a few not used (reserved) fields.
2780 */
2781 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
2782 if (!status)
2783 goto out_free_resp;
2784
2785 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2786 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
2787 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2788
2789 status->tid_tear_down = v9->tid_tear_down;
2790 } else if (notif_ver == 12) {
2791 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2792
2793 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
2794 if (!status)
2795 goto out_free_resp;
2796
2797 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2798 iwl_mvm_convert_gtk_v3(status, v12->gtk);
2799 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2800
2801 status->tid_tear_down = v12->tid_tear_down;
2802 } else {
2803 IWL_ERR(mvm,
2804 "Firmware advertises unknown WoWLAN status response %d!\n",
2805 notif_ver);
2806 status = NULL;
2807 }
2808
2809 out_free_resp:
2810 iwl_free_resp(&cmd);
2811 return status;
2812 }
2813
2814 /* releases the MVM mutex */
2815 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
2816 struct ieee80211_vif *vif,
2817 struct iwl_wowlan_status_data *status)
2818 {
2819 int i;
2820 bool keep = false;
2821 struct iwl_mvm_sta *mvm_ap_sta;
2822 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2823 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
2824 struct iwl_mvm_vif_link_info *mvm_link = mvmvif->link[link_id];
2825 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
2826 PROT_OFFLOAD_GROUP,
2827 WOWLAN_INFO_NOTIFICATION,
2828 IWL_FW_CMD_VER_UNKNOWN);
2829
2830 if (WARN_ON(!mvm_link))
2831 goto out_unlock;
2832
2833 if (!status)
2834 goto out_unlock;
2835
2836 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
2837 status->wakeup_reasons);
2838
2839 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, mvm_link->ap_sta_id);
2840 if (!mvm_ap_sta)
2841 goto out_unlock;
2842
2843 /* firmware stores last-used value, we store next value */
2844 if (wowlan_info_ver >= 5) {
2845 mvm_ap_sta->tid_data[status->tid_offloaded_tx].seq_number =
2846 status->qos_seq_ctr[status->tid_offloaded_tx] + 0x10;
2847 } else {
2848 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2849 mvm_ap_sta->tid_data[i].seq_number =
2850 status->qos_seq_ctr[i] + 0x10;
2851 }
2852
2853 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
2854 i = mvm->offload_tid;
2855 iwl_trans_set_q_ptrs(mvm->trans,
2856 mvm_ap_sta->tid_data[i].txq_id,
2857 mvm_ap_sta->tid_data[i].seq_number >> 4);
2858 }
2859
2860 iwl_mvm_report_wakeup_reasons(mvm, vif, status);
2861
2862 keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
2863 out_unlock:
2864 mutex_unlock(&mvm->mutex);
2865 return keep;
2866 }
2867
2868 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2869 IWL_SCAN_MAX_PROFILES)
2870
2871 struct iwl_mvm_nd_results {
2872 u32 matched_profiles;
2873 u8 matches[ND_QUERY_BUF_LEN];
2874 };
2875
2876 static int
2877 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2878 struct iwl_mvm_nd_results *results)
2879 {
2880 struct iwl_scan_offload_match_info *query;
2881 struct iwl_host_cmd cmd = {
2882 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2883 .flags = CMD_WANT_SKB,
2884 };
2885 int ret, len;
2886 size_t query_len, matches_len;
2887 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
2888
2889 ret = iwl_mvm_send_cmd(mvm, &cmd);
2890 if (ret) {
2891 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
2892 return ret;
2893 }
2894
2895 if (fw_has_api(&mvm->fw->ucode_capa,
2896 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2897 query_len = sizeof(struct iwl_scan_offload_match_info);
2898 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2899 max_profiles;
2900 } else {
2901 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2902 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
2903 max_profiles;
2904 }
2905
2906 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2907 if (len < query_len) {
2908 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
2909 ret = -EIO;
2910 goto out_free_resp;
2911 }
2912
2913 query = (void *)cmd.resp_pkt->data;
2914
2915 results->matched_profiles = le32_to_cpu(query->matched_profiles);
2916 memcpy(results->matches, query->matches, matches_len);
2917
2918 #ifdef CONFIG_IWLWIFI_DEBUGFS
2919 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2920 #endif
2921
2922 out_free_resp:
2923 iwl_free_resp(&cmd);
2924 return ret;
2925 }
2926
2927 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2928 struct iwl_mvm_nd_results *results,
2929 int idx)
2930 {
2931 int n_chans = 0, i;
2932
2933 if (fw_has_api(&mvm->fw->ucode_capa,
2934 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2935 struct iwl_scan_offload_profile_match *matches =
2936 (void *)results->matches;
2937
2938 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2939 n_chans += hweight8(matches[idx].matching_channels[i]);
2940 } else {
2941 struct iwl_scan_offload_profile_match_v1 *matches =
2942 (void *)results->matches;
2943
2944 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2945 n_chans += hweight8(matches[idx].matching_channels[i]);
2946 }
2947
2948 return n_chans;
2949 }
2950
2951 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2952 struct iwl_mvm_nd_results *results,
2953 struct cfg80211_wowlan_nd_match *match,
2954 int idx)
2955 {
2956 int i;
2957
2958 if (fw_has_api(&mvm->fw->ucode_capa,
2959 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2960 struct iwl_scan_offload_profile_match *matches =
2961 (void *)results->matches;
2962
2963 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2964 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2965 match->channels[match->n_channels++] =
2966 mvm->nd_channels[i]->center_freq;
2967 } else {
2968 struct iwl_scan_offload_profile_match_v1 *matches =
2969 (void *)results->matches;
2970
2971 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2972 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2973 match->channels[match->n_channels++] =
2974 mvm->nd_channels[i]->center_freq;
2975 }
2976 }
2977
2978 /**
2979 * enum iwl_d3_notif - d3 notifications
2980 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2981 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received
2982 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received
2983 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received
2984 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received
2985 */
2986 enum iwl_d3_notif {
2987 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0),
2988 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1),
2989 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2),
2990 IWL_D3_ND_MATCH_INFO = BIT(3),
2991 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4)
2992 };
2993
2994 /* manage d3 resume data */
2995 struct iwl_d3_data {
2996 struct iwl_wowlan_status_data *status;
2997 bool test;
2998 u32 d3_end_flags;
2999 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */
3000 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */
3001 struct iwl_mvm_nd_results *nd_results;
3002 bool nd_results_valid;
3003 };
3004
3005 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
3006 struct ieee80211_vif *vif,
3007 struct iwl_d3_data *d3_data)
3008 {
3009 struct cfg80211_wowlan_nd_info *net_detect = NULL;
3010 struct cfg80211_wowlan_wakeup wakeup = {
3011 .pattern_idx = -1,
3012 };
3013 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
3014 unsigned long matched_profiles;
3015 u32 reasons = 0;
3016 int i, n_matches, ret;
3017
3018 if (WARN_ON(!d3_data || !d3_data->status))
3019 goto out;
3020
3021 reasons = d3_data->status->wakeup_reasons;
3022
3023 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
3024 wakeup.rfkill_release = true;
3025
3026 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
3027 goto out;
3028
3029 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3030 WOWLAN_INFO_NOTIFICATION, 0)) {
3031 IWL_INFO(mvm, "Query FW for ND results\n");
3032 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results);
3033
3034 } else {
3035 IWL_INFO(mvm, "Notification based ND results\n");
3036 ret = d3_data->nd_results_valid ? 0 : -1;
3037 }
3038
3039 if (ret || !d3_data->nd_results->matched_profiles) {
3040 wakeup_report = NULL;
3041 goto out;
3042 }
3043
3044 matched_profiles = d3_data->nd_results->matched_profiles;
3045 if (mvm->n_nd_match_sets) {
3046 n_matches = hweight_long(matched_profiles);
3047 } else {
3048 IWL_ERR(mvm, "no net detect match information available\n");
3049 n_matches = 0;
3050 }
3051
3052 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
3053 GFP_KERNEL);
3054 if (!net_detect || !n_matches)
3055 goto out_report_nd;
3056
3057 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
3058 struct cfg80211_wowlan_nd_match *match;
3059 int idx, n_channels = 0;
3060
3061 n_channels = iwl_mvm_query_num_match_chans(mvm,
3062 d3_data->nd_results,
3063 i);
3064
3065 match = kzalloc(struct_size(match, channels, n_channels),
3066 GFP_KERNEL);
3067 if (!match)
3068 goto out_report_nd;
3069
3070 net_detect->matches[net_detect->n_matches++] = match;
3071
3072 /* We inverted the order of the SSIDs in the scan
3073 * request, so invert the index here.
3074 */
3075 idx = mvm->n_nd_match_sets - i - 1;
3076 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
3077 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
3078 match->ssid.ssid_len);
3079
3080 if (mvm->n_nd_channels < n_channels)
3081 continue;
3082
3083 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i);
3084 }
3085
3086 out_report_nd:
3087 wakeup.net_detect = net_detect;
3088 out:
3089 iwl_mvm_free_nd(mvm);
3090
3091 mutex_unlock(&mvm->mutex);
3092 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
3093
3094 if (net_detect) {
3095 for (i = 0; i < net_detect->n_matches; i++)
3096 kfree(net_detect->matches[i]);
3097 kfree(net_detect);
3098 }
3099 }
3100
3101 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
3102 struct ieee80211_vif *vif)
3103 {
3104 /* skip the one we keep connection on */
3105 if (data == vif)
3106 return;
3107
3108 if (vif->type == NL80211_IFTYPE_STATION)
3109 ieee80211_resume_disconnect(vif);
3110 }
3111
3112 static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
3113 struct ieee80211_vif *vif)
3114 {
3115 u32 err_id;
3116
3117 /* check for lmac1 error */
3118 if (iwl_fwrt_read_err_table(mvm->trans,
3119 mvm->trans->dbg.lmac_error_event_table[0],
3120 &err_id)) {
3121 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN && vif) {
3122 struct cfg80211_wowlan_wakeup wakeup = {
3123 .rfkill_release = true,
3124 };
3125 ieee80211_report_wowlan_wakeup(vif, &wakeup,
3126 GFP_KERNEL);
3127 }
3128 return true;
3129 }
3130
3131 /* check if we have lmac2 set and check for error */
3132 if (iwl_fwrt_read_err_table(mvm->trans,
3133 mvm->trans->dbg.lmac_error_event_table[1],
3134 NULL))
3135 return true;
3136
3137 /* check for umac error */
3138 if (iwl_fwrt_read_err_table(mvm->trans,
3139 mvm->trans->dbg.umac_error_event_table,
3140 NULL))
3141 return true;
3142
3143 return false;
3144 }
3145
3146 /*
3147 * This function assumes:
3148 * 1. The mutex is already held.
3149 * 2. The callee functions unlock the mutex.
3150 */
3151 static bool
3152 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
3153 struct ieee80211_vif *vif,
3154 struct iwl_d3_data *d3_data)
3155 {
3156 lockdep_assert_held(&mvm->mutex);
3157
3158 /* if FW uses status notification, status shouldn't be NULL here */
3159 if (!d3_data->status) {
3160 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3161 u8 sta_id = mvm->net_detect ? IWL_INVALID_STA :
3162 mvmvif->deflink.ap_sta_id;
3163
3164 /* bug - FW with MLO has status notification */
3165 WARN_ON(ieee80211_vif_is_mld(vif));
3166
3167 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id);
3168 }
3169
3170 if (mvm->net_detect) {
3171 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data);
3172 } else {
3173 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
3174 d3_data->status);
3175
3176 #ifdef CONFIG_IWLWIFI_DEBUGFS
3177 if (keep)
3178 mvm->keep_vif = vif;
3179 #endif
3180
3181 return keep;
3182 }
3183 return false;
3184 }
3185
3186 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
3187 IWL_WOWLAN_WAKEUP_BY_PATTERN | \
3188 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\
3189 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\
3190 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\
3191 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD)
3192
3193 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm,
3194 struct iwl_wowlan_wake_pkt_notif *notif,
3195 struct iwl_wowlan_status_data *status,
3196 u32 len)
3197 {
3198 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length);
3199
3200 if (len < sizeof(*notif)) {
3201 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n");
3202 return -EIO;
3203 }
3204
3205 if (WARN_ON(!status)) {
3206 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n");
3207 return -EIO;
3208 }
3209
3210 if (WARN_ON(!(status->wakeup_reasons &
3211 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) {
3212 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n",
3213 status->wakeup_reasons);
3214 return -EIO;
3215 }
3216
3217 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet);
3218
3219 /* data_size got the padding from the notification, remove it. */
3220 if (packet_len < data_size)
3221 data_size = packet_len;
3222
3223 status->wake_packet = kmemdup(notif->wake_packet, data_size,
3224 GFP_ATOMIC);
3225
3226 if (!status->wake_packet)
3227 return -ENOMEM;
3228
3229 status->wake_packet_length = packet_len;
3230 status->wake_packet_bufsize = data_size;
3231
3232 return 0;
3233 }
3234
3235 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
3236 struct iwl_d3_data *d3_data,
3237 struct iwl_scan_offload_match_info *notif,
3238 u32 len)
3239 {
3240 struct iwl_wowlan_status_data *status = d3_data->status;
3241 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
3242 struct iwl_mvm_nd_results *results = d3_data->nd_results;
3243 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) *
3244 iwl_umac_scan_get_max_profiles(mvm->fw);
3245
3246 if (IS_ERR_OR_NULL(vif))
3247 return;
3248
3249 if (len < sizeof(struct iwl_scan_offload_match_info)) {
3250 IWL_ERR(mvm, "Invalid scan match info notification\n");
3251 return;
3252 }
3253
3254 if (!mvm->net_detect) {
3255 IWL_ERR(mvm, "Unexpected scan match info notification\n");
3256 return;
3257 }
3258
3259 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
3260 IWL_ERR(mvm,
3261 "Ignore scan match info notification: no reason\n");
3262 return;
3263 }
3264
3265 #ifdef CONFIG_IWLWIFI_DEBUGFS
3266 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done);
3267 #endif
3268
3269 results->matched_profiles = le32_to_cpu(notif->matched_profiles);
3270 IWL_INFO(mvm, "number of matched profiles=%u\n",
3271 results->matched_profiles);
3272
3273 if (results->matched_profiles) {
3274 memcpy(results->matches, notif->matches, matches_len);
3275 d3_data->nd_results_valid = true;
3276 }
3277
3278 /* no scan should be active at this point */
3279 mvm->scan_status = 0;
3280 for (i = 0; i < mvm->max_scans; i++)
3281 mvm->scan_uid_status[i] = 0;
3282 }
3283
3284 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
3285 struct iwl_rx_packet *pkt, void *data)
3286 {
3287 struct iwl_mvm *mvm =
3288 container_of(notif_wait, struct iwl_mvm, notif_wait);
3289 struct iwl_d3_data *d3_data = data;
3290 u32 len = iwl_rx_packet_payload_len(pkt);
3291 int ret;
3292 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
3293 PROT_OFFLOAD_GROUP,
3294 WOWLAN_INFO_NOTIFICATION,
3295 IWL_FW_CMD_VER_UNKNOWN);
3296
3297
3298 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
3299 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
3300
3301 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
3302 /* We might get two notifications due to dual bss */
3303 IWL_DEBUG_WOWLAN(mvm,
3304 "Got additional wowlan info notification\n");
3305 break;
3306 }
3307
3308 if (wowlan_info_ver < 2) {
3309 struct iwl_wowlan_info_notif_v1 *notif_v1 =
3310 (void *)pkt->data;
3311 struct iwl_wowlan_info_notif_v2 *notif_v2;
3312
3313 notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC);
3314
3315 if (!notif_v2)
3316 return false;
3317
3318 notif_v2->tid_tear_down = notif_v1->tid_tear_down;
3319 notif_v2->station_id = notif_v1->station_id;
3320 memset_after(notif_v2, 0, station_id);
3321 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3322 d3_data->status,
3323 len);
3324 kfree(notif_v2);
3325
3326 } else if (wowlan_info_ver == 2) {
3327 struct iwl_wowlan_info_notif_v2 *notif_v2 =
3328 (void *)pkt->data;
3329
3330 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3331 d3_data->status,
3332 len);
3333 } else if (wowlan_info_ver < 5) {
3334 struct iwl_wowlan_info_notif_v4 *notif =
3335 (void *)pkt->data;
3336
3337 iwl_mvm_parse_wowlan_info_notif_v4(mvm, notif,
3338 d3_data->status, len,
3339 wowlan_info_ver > 3);
3340 } else {
3341 struct iwl_wowlan_info_notif *notif =
3342 (void *)pkt->data;
3343
3344 iwl_mvm_parse_wowlan_info_notif(mvm, notif,
3345 d3_data->status, len);
3346 }
3347
3348 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
3349
3350 if (d3_data->status &&
3351 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT)
3352 /* We are supposed to get also wake packet notif */
3353 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3354
3355 break;
3356 }
3357 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): {
3358 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data;
3359
3360 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) {
3361 /* We shouldn't get two wake packet notifications */
3362 IWL_ERR(mvm,
3363 "Got additional wowlan wake packet notification\n");
3364 } else {
3365 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3366 len = iwl_rx_packet_payload_len(pkt);
3367 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif,
3368 d3_data->status,
3369 len);
3370 if (ret)
3371 IWL_ERR(mvm,
3372 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n");
3373 }
3374
3375 break;
3376 }
3377 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): {
3378 struct iwl_scan_offload_match_info *notif = (void *)pkt->data;
3379
3380 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) {
3381 IWL_ERR(mvm,
3382 "Got additional netdetect match info\n");
3383 break;
3384 }
3385
3386 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO;
3387
3388 /* explicitly set this in the 'expected' as well */
3389 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO;
3390
3391 len = iwl_rx_packet_payload_len(pkt);
3392 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len);
3393 break;
3394 }
3395 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): {
3396 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data;
3397
3398 d3_data->d3_end_flags = __le32_to_cpu(notif->flags);
3399 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF;
3400
3401 break;
3402 }
3403 default:
3404 WARN_ON(1);
3405 }
3406
3407 return d3_data->notif_received == d3_data->notif_expected;
3408 }
3409
3410 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test)
3411 {
3412 int ret;
3413 enum iwl_d3_status d3_status;
3414 struct iwl_host_cmd cmd = {
3415 .id = D0I3_END_CMD,
3416 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
3417 };
3418 bool reset = fw_has_capa(&mvm->fw->ucode_capa,
3419 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3420
3421 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset);
3422 if (ret)
3423 return ret;
3424
3425 if (d3_status != IWL_D3_STATUS_ALIVE) {
3426 IWL_INFO(mvm, "Device was reset during suspend\n");
3427 return -ENOENT;
3428 }
3429
3430 /*
3431 * We should trigger resume flow using command only for 22000 family
3432 * AX210 and above don't need the command since they have
3433 * the doorbell interrupt.
3434 */
3435 if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 &&
3436 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) {
3437 ret = iwl_mvm_send_cmd(mvm, &cmd);
3438 if (ret < 0)
3439 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
3440 ret);
3441 }
3442
3443 return ret;
3444 }
3445
3446 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 3)
3447
3448 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
3449 struct iwl_d3_data *d3_data)
3450 {
3451 static const u16 d3_resume_notif[] = {
3452 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION),
3453 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION),
3454 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF),
3455 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3456 };
3457 static const u16 d3_fast_resume_notif[] = {
3458 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3459 };
3460 struct iwl_notification_wait wait_d3_notif;
3461 int ret;
3462
3463 if (mvm->fast_resume)
3464 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3465 d3_fast_resume_notif,
3466 ARRAY_SIZE(d3_fast_resume_notif),
3467 iwl_mvm_wait_d3_notif, d3_data);
3468 else
3469 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3470 d3_resume_notif,
3471 ARRAY_SIZE(d3_resume_notif),
3472 iwl_mvm_wait_d3_notif, d3_data);
3473
3474 ret = iwl_mvm_resume_firmware(mvm, d3_data->test);
3475 if (ret) {
3476 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
3477 return ret;
3478 }
3479
3480 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
3481 IWL_MVM_D3_NOTIF_TIMEOUT);
3482 }
3483
3484 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm)
3485 {
3486 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3487 WOWLAN_INFO_NOTIFICATION, 0) &&
3488 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3489 WOWLAN_WAKE_PKT_NOTIFICATION, 0) &&
3490 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3491 D3_END_NOTIFICATION, 0);
3492 }
3493
3494 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
3495 {
3496 struct ieee80211_vif *vif = NULL;
3497 int ret = 1;
3498 struct iwl_mvm_nd_results results = {};
3499 struct iwl_d3_data d3_data = {
3500 .test = test,
3501 .notif_expected =
3502 IWL_D3_NOTIF_WOWLAN_INFO |
3503 IWL_D3_NOTIF_D3_END_NOTIF,
3504 .nd_results_valid = false,
3505 .nd_results = &results,
3506 };
3507 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3508 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3509 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
3510 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
3511 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
3512 bool keep = false;
3513
3514 mutex_lock(&mvm->mutex);
3515
3516 /* Apparently, the device went away and device_powered_off() was called,
3517 * don't even try to read the rt_status, the device is currently
3518 * inaccessible.
3519 */
3520 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
3521 IWL_INFO(mvm,
3522 "Can't resume, device_powered_off() was called during wowlan\n");
3523 goto err;
3524 }
3525
3526 mvm->last_reset_or_resume_time_jiffies = jiffies;
3527
3528 /* get the BSS vif pointer again */
3529 vif = iwl_mvm_get_bss_vif(mvm);
3530 if (IS_ERR_OR_NULL(vif))
3531 goto err;
3532
3533 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3534
3535 if (iwl_mvm_check_rt_status(mvm, vif)) {
3536 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3537 iwl_mvm_dump_nic_error_log(mvm);
3538 iwl_dbg_tlv_time_point(&mvm->fwrt,
3539 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3540 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3541 false, 0);
3542 ret = 1;
3543 goto err;
3544 }
3545
3546 if (resume_notif_based) {
3547 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
3548 if (!d3_data.status) {
3549 IWL_ERR(mvm, "Failed to allocate wowlan status\n");
3550 ret = -ENOMEM;
3551 goto err;
3552 }
3553
3554 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3555 if (ret)
3556 goto err;
3557 } else {
3558 ret = iwl_mvm_resume_firmware(mvm, test);
3559 if (ret < 0)
3560 goto err;
3561 }
3562
3563 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_WOWLAN);
3564
3565 /* after the successful handshake, we're out of D3 */
3566 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3567
3568 /* when reset is required we can't send these following commands */
3569 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)
3570 goto query_wakeup_reasons;
3571
3572 /*
3573 * Query the current location and source from the D3 firmware so we
3574 * can play it back when we re-intiailize the D0 firmware
3575 */
3576 iwl_mvm_update_changed_regdom(mvm);
3577
3578 /* Re-configure PPAG settings */
3579 iwl_mvm_ppag_send_cmd(mvm);
3580
3581 if (!unified_image)
3582 /* Re-configure default SAR profile */
3583 iwl_mvm_sar_select_profile(mvm, 1, 1);
3584
3585 if (mvm->net_detect && unified_image) {
3586 /* If this is a non-unified image, we restart the FW,
3587 * so no need to stop the netdetect scan. If that
3588 * fails, continue and try to get the wake-up reasons,
3589 * but trigger a HW restart by keeping a failure code
3590 * in ret.
3591 */
3592 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
3593 false);
3594 }
3595
3596 query_wakeup_reasons:
3597 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
3598 /* has unlocked the mutex, so skip that */
3599 goto out;
3600
3601 err:
3602 mutex_unlock(&mvm->mutex);
3603 out:
3604 if (d3_data.status)
3605 kfree(d3_data.status->wake_packet);
3606 kfree(d3_data.status);
3607 iwl_mvm_free_nd(mvm);
3608
3609 if (!d3_data.test && !mvm->net_detect)
3610 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
3611 IEEE80211_IFACE_ITER_NORMAL,
3612 iwl_mvm_d3_disconnect_iter,
3613 keep ? vif : NULL);
3614
3615 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3616
3617 /* no need to reset the device in unified images, if successful */
3618 if (unified_image && !ret) {
3619 /* nothing else to do if we already sent D0I3_END_CMD */
3620 if (d0i3_first)
3621 return 0;
3622
3623 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3624 D3_END_NOTIFICATION, 0)) {
3625 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
3626 if (!ret)
3627 return 0;
3628 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) {
3629 return 0;
3630 }
3631 }
3632
3633 /*
3634 * Reconfigure the device in one of the following cases:
3635 * 1. We are not using a unified image
3636 * 2. We are using a unified image but had an error while exiting D3
3637 */
3638 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
3639
3640 /* regardless of what happened, we're now out of D3 */
3641 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3642
3643 return 1;
3644 }
3645
3646 int iwl_mvm_resume(struct ieee80211_hw *hw)
3647 {
3648 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3649 int ret;
3650
3651 ret = __iwl_mvm_resume(mvm, false);
3652
3653 iwl_mvm_resume_tcm(mvm);
3654
3655 iwl_fw_runtime_resume(&mvm->fwrt);
3656
3657 return ret;
3658 }
3659
3660 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
3661 {
3662 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3663
3664 device_set_wakeup_enable(mvm->trans->dev, enabled);
3665 }
3666
3667 void iwl_mvm_fast_suspend(struct iwl_mvm *mvm)
3668 {
3669 struct iwl_d3_manager_config d3_cfg_cmd_data = {};
3670 int ret;
3671
3672 lockdep_assert_held(&mvm->mutex);
3673
3674 IWL_DEBUG_WOWLAN(mvm, "Starting fast suspend flow\n");
3675
3676 mvm->fast_resume = true;
3677 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3678
3679 WARN_ON(iwl_mvm_power_update_device(mvm));
3680 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
3681 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SEND_IN_D3,
3682 sizeof(d3_cfg_cmd_data), &d3_cfg_cmd_data);
3683 if (ret)
3684 IWL_ERR(mvm,
3685 "fast suspend: couldn't send D3_CONFIG_CMD %d\n", ret);
3686
3687 ret = iwl_trans_d3_suspend(mvm->trans, false, false);
3688 if (ret)
3689 IWL_ERR(mvm, "fast suspend: trans_d3_suspend failed %d\n", ret);
3690 }
3691
3692 int iwl_mvm_fast_resume(struct iwl_mvm *mvm)
3693 {
3694 struct iwl_d3_data d3_data = {
3695 .notif_expected =
3696 IWL_D3_NOTIF_D3_END_NOTIF,
3697 };
3698 int ret;
3699
3700 lockdep_assert_held(&mvm->mutex);
3701
3702 IWL_DEBUG_WOWLAN(mvm, "Starting the fast resume flow\n");
3703
3704 mvm->last_reset_or_resume_time_jiffies = jiffies;
3705 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3706
3707 if (iwl_mvm_check_rt_status(mvm, NULL)) {
3708 IWL_ERR(mvm,
3709 "iwl_mvm_check_rt_status failed, device is gone during suspend\n");
3710 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3711 iwl_mvm_dump_nic_error_log(mvm);
3712 iwl_dbg_tlv_time_point(&mvm->fwrt,
3713 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3714 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3715 false, 0);
3716 mvm->trans->state = IWL_TRANS_NO_FW;
3717 ret = -ENODEV;
3718
3719 goto out;
3720 }
3721 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3722
3723 if (ret) {
3724 IWL_ERR(mvm, "Couldn't get the d3 notif %d\n", ret);
3725 mvm->trans->state = IWL_TRANS_NO_FW;
3726 }
3727
3728 out:
3729 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3730 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3731 mvm->fast_resume = false;
3732
3733 return ret;
3734 }
3735
3736 #ifdef CONFIG_IWLWIFI_DEBUGFS
3737 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
3738 {
3739 struct iwl_mvm *mvm = inode->i_private;
3740 int err;
3741
3742 if (mvm->d3_test_active)
3743 return -EBUSY;
3744
3745 file->private_data = inode->i_private;
3746
3747 iwl_mvm_pause_tcm(mvm, true);
3748
3749 iwl_fw_runtime_suspend(&mvm->fwrt);
3750
3751 /* start pseudo D3 */
3752 rtnl_lock();
3753 wiphy_lock(mvm->hw->wiphy);
3754 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
3755 wiphy_unlock(mvm->hw->wiphy);
3756 rtnl_unlock();
3757 if (err > 0)
3758 err = -EINVAL;
3759 if (err)
3760 return err;
3761
3762 mvm->d3_test_active = true;
3763 mvm->keep_vif = NULL;
3764 return 0;
3765 }
3766
3767 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
3768 size_t count, loff_t *ppos)
3769 {
3770 struct iwl_mvm *mvm = file->private_data;
3771 unsigned long end = jiffies + 60 * HZ;
3772 u32 pme_asserted;
3773
3774 while (true) {
3775 /* read pme_ptr if available */
3776 if (mvm->d3_test_pme_ptr) {
3777 pme_asserted = iwl_trans_read_mem32(mvm->trans,
3778 mvm->d3_test_pme_ptr);
3779 if (pme_asserted)
3780 break;
3781 }
3782
3783 if (msleep_interruptible(100))
3784 break;
3785
3786 if (time_is_before_jiffies(end)) {
3787 IWL_ERR(mvm,
3788 "ending pseudo-D3 with timeout after ~60 seconds\n");
3789 return -ETIMEDOUT;
3790 }
3791 }
3792
3793 return 0;
3794 }
3795
3796 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
3797 struct ieee80211_vif *vif)
3798 {
3799 /* skip the one we keep connection on */
3800 if (_data == vif)
3801 return;
3802
3803 if (vif->type == NL80211_IFTYPE_STATION)
3804 ieee80211_connection_loss(vif);
3805 }
3806
3807 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
3808 {
3809 struct iwl_mvm *mvm = inode->i_private;
3810 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3811 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3812
3813 mvm->d3_test_active = false;
3814
3815 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3816
3817 rtnl_lock();
3818 wiphy_lock(mvm->hw->wiphy);
3819 __iwl_mvm_resume(mvm, true);
3820 wiphy_unlock(mvm->hw->wiphy);
3821 rtnl_unlock();
3822
3823 iwl_mvm_resume_tcm(mvm);
3824
3825 iwl_fw_runtime_resume(&mvm->fwrt);
3826
3827 iwl_abort_notification_waits(&mvm->notif_wait);
3828 if (!unified_image) {
3829 int remaining_time = 10;
3830
3831 ieee80211_restart_hw(mvm->hw);
3832
3833 /* wait for restart and disconnect all interfaces */
3834 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3835 remaining_time > 0) {
3836 remaining_time--;
3837 msleep(1000);
3838 }
3839
3840 if (remaining_time == 0)
3841 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
3842 }
3843
3844 ieee80211_iterate_active_interfaces_atomic(
3845 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
3846 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
3847
3848 return 0;
3849 }
3850
3851 const struct file_operations iwl_dbgfs_d3_test_ops = {
3852 .open = iwl_mvm_d3_test_open,
3853 .read = iwl_mvm_d3_test_read,
3854 .release = iwl_mvm_d3_test_release,
3855 };
3856 #endif
Kernel DRM miscellaneous fixes and cross-tree changes