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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
19void 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((__be64 *)data->replay_ctr));
35 mvmvif->rekey_data.valid = true;
36
37 mutex_unlock(&mvm->mutex);
38}
39
40#if IS_ENABLED(CONFIG_IPV6)
41void 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
66void 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
74static 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
82static 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
91 ieee80211_get_key_rx_seq(key, tid, seq);
92
93
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
104struct wowlan_key_data {
105 struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc;
106 struct iwl_wowlan_tkip_params_cmd *tkip;
107 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
108 bool error, use_rsc_tsc, use_tkip, configure_keys;
109 int wep_key_idx;
110};
111
112static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
113 struct ieee80211_vif *vif,
114 struct ieee80211_sta *sta,
115 struct ieee80211_key_conf *key,
116 void *_data)
117{
118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
119 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
120 struct wowlan_key_data *data = _data;
121 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
122 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
123 struct iwl_p1k_cache *rx_p1ks;
124 u8 *rx_mic_key;
125 struct ieee80211_key_seq seq;
126 u32 cur_rx_iv32 = 0;
127 u16 p1k[IWL_P1K_SIZE];
128 int ret, i;
129
130 switch (key->cipher) {
131 case WLAN_CIPHER_SUITE_WEP40:
132 case WLAN_CIPHER_SUITE_WEP104: {
133 struct {
134 struct iwl_mvm_wep_key_cmd wep_key_cmd;
135 struct iwl_mvm_wep_key wep_key;
136 } __packed wkc = {
137 .wep_key_cmd.mac_id_n_color =
138 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
139 mvmvif->color)),
140 .wep_key_cmd.num_keys = 1,
141
142 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
143 .wep_key.key_index = key->keyidx,
144 .wep_key.key_size = key->keylen,
145 };
146
147
148
149
150
151
152 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
153 break;
154
155 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
156 if (key->keyidx == mvmvif->tx_key_idx) {
157
158 wkc.wep_key.key_offset = 0;
159 } else {
160
161 data->wep_key_idx++;
162 wkc.wep_key.key_offset = data->wep_key_idx;
163 }
164
165 if (data->configure_keys) {
166 mutex_lock(&mvm->mutex);
167 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0,
168 sizeof(wkc), &wkc);
169 data->error = ret != 0;
170
171 mvm->ptk_ivlen = key->iv_len;
172 mvm->ptk_icvlen = key->icv_len;
173 mvm->gtk_ivlen = key->iv_len;
174 mvm->gtk_icvlen = key->icv_len;
175 mutex_unlock(&mvm->mutex);
176 }
177
178
179 return;
180 }
181 default:
182 data->error = true;
183 return;
184 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
185 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
186 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
187 return;
188 case WLAN_CIPHER_SUITE_AES_CMAC:
189 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
190
191
192
193
194
195
196
197 return;
198 case WLAN_CIPHER_SUITE_TKIP:
199 if (sta) {
200 u64 pn64;
201
202 tkip_sc =
203 data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc;
204 tkip_tx_sc =
205 &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc;
206
207 rx_p1ks = data->tkip->rx_uni;
208
209 pn64 = atomic64_read(&key->tx_pn);
210 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
211 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
212
213 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
214 p1k);
215 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
216
217 memcpy(data->tkip->mic_keys.tx,
218 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
219 IWL_MIC_KEY_SIZE);
220
221 rx_mic_key = data->tkip->mic_keys.rx_unicast;
222 } else {
223 tkip_sc =
224 data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
225 rx_p1ks = data->tkip->rx_multi;
226 rx_mic_key = data->tkip->mic_keys.rx_mcast;
227 data->kek_kck_cmd->gtk_cipher =
228 cpu_to_le32(STA_KEY_FLG_TKIP);
229 }
230
231
232
233
234
235
236 for (i = 0; i < IWL_NUM_RSC; i++) {
237 ieee80211_get_key_rx_seq(key, i, &seq);
238 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
239 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
240
241 if (seq.tkip.iv32 > cur_rx_iv32)
242 cur_rx_iv32 = seq.tkip.iv32;
243 }
244
245 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
246 cur_rx_iv32, p1k);
247 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
248 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
249 cur_rx_iv32 + 1, p1k);
250 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
251
252 memcpy(rx_mic_key,
253 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
254 IWL_MIC_KEY_SIZE);
255
256 data->use_tkip = true;
257 data->use_rsc_tsc = true;
258 break;
259 case WLAN_CIPHER_SUITE_CCMP:
260 case WLAN_CIPHER_SUITE_GCMP:
261 case WLAN_CIPHER_SUITE_GCMP_256:
262 if (sta) {
263 u64 pn64;
264
265 aes_sc =
266 data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc;
267 aes_tx_sc =
268 &data->rsc_tsc->params.all_tsc_rsc.aes.tsc;
269
270 pn64 = atomic64_read(&key->tx_pn);
271 aes_tx_sc->pn = cpu_to_le64(pn64);
272 } else {
273 aes_sc =
274 data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
275 data->kek_kck_cmd->gtk_cipher =
276 key->cipher == WLAN_CIPHER_SUITE_CCMP ?
277 cpu_to_le32(STA_KEY_FLG_CCM) :
278 cpu_to_le32(STA_KEY_FLG_GCMP);
279 }
280
281
282
283
284
285 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
286 struct iwl_mvm_sta *mvmsta;
287 struct iwl_mvm_key_pn *ptk_pn;
288 const u8 *pn;
289
290 mvmsta = iwl_mvm_sta_from_mac80211(sta);
291 rcu_read_lock();
292 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
293 if (WARN_ON(!ptk_pn)) {
294 rcu_read_unlock();
295 break;
296 }
297
298 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
299 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
300 mvm->trans->num_rx_queues);
301 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
302 ((u64)pn[4] << 8) |
303 ((u64)pn[3] << 16) |
304 ((u64)pn[2] << 24) |
305 ((u64)pn[1] << 32) |
306 ((u64)pn[0] << 40));
307 }
308
309 rcu_read_unlock();
310 } else {
311 for (i = 0; i < IWL_NUM_RSC; i++) {
312 u8 *pn = seq.ccmp.pn;
313
314 ieee80211_get_key_rx_seq(key, i, &seq);
315 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
316 ((u64)pn[4] << 8) |
317 ((u64)pn[3] << 16) |
318 ((u64)pn[2] << 24) |
319 ((u64)pn[1] << 32) |
320 ((u64)pn[0] << 40));
321 }
322 }
323 data->use_rsc_tsc = true;
324 break;
325 }
326
327 IWL_DEBUG_WOWLAN(mvm, "GTK cipher %d\n", data->kek_kck_cmd->gtk_cipher);
328
329 if (data->configure_keys) {
330 mutex_lock(&mvm->mutex);
331
332
333
334
335 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
336 mvm->ptk_ivlen = key->iv_len;
337 mvm->ptk_icvlen = key->icv_len;
338 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
339 } else {
340
341
342
343
344
345
346 mvm->gtk_ivlen = key->iv_len;
347 mvm->gtk_icvlen = key->icv_len;
348 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
349 }
350 mutex_unlock(&mvm->mutex);
351 data->error = ret != 0;
352 }
353}
354
355static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
356 struct cfg80211_wowlan *wowlan)
357{
358 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
359 struct iwl_host_cmd cmd = {
360 .id = WOWLAN_PATTERNS,
361 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
362 };
363 int i, err;
364
365 if (!wowlan->n_patterns)
366 return 0;
367
368 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
369
370 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
371 if (!pattern_cmd)
372 return -ENOMEM;
373
374 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
375
376 for (i = 0; i < wowlan->n_patterns; i++) {
377 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
378
379 memcpy(&pattern_cmd->patterns[i].mask,
380 wowlan->patterns[i].mask, mask_len);
381 memcpy(&pattern_cmd->patterns[i].pattern,
382 wowlan->patterns[i].pattern,
383 wowlan->patterns[i].pattern_len);
384 pattern_cmd->patterns[i].mask_size = mask_len;
385 pattern_cmd->patterns[i].pattern_size =
386 wowlan->patterns[i].pattern_len;
387 }
388
389 cmd.data[0] = pattern_cmd;
390 err = iwl_mvm_send_cmd(mvm, &cmd);
391 kfree(pattern_cmd);
392 return err;
393}
394
395static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
396 struct ieee80211_vif *vif,
397 struct cfg80211_wowlan *wowlan)
398{
399 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
400 struct iwl_wowlan_patterns_cmd *pattern_cmd;
401 struct iwl_host_cmd cmd = {
402 .id = WOWLAN_PATTERNS,
403 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
404 };
405 int i, err;
406 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
407 WOWLAN_PATTERNS,
408 IWL_FW_CMD_VER_UNKNOWN);
409
410 if (!wowlan->n_patterns)
411 return 0;
412
413 cmd.len[0] = sizeof(*pattern_cmd) +
414 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
415
416 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
417 if (!pattern_cmd)
418 return -ENOMEM;
419
420 pattern_cmd->n_patterns = wowlan->n_patterns;
421 if (ver >= 3)
422 pattern_cmd->sta_id = mvmvif->ap_sta_id;
423
424 for (i = 0; i < wowlan->n_patterns; i++) {
425 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
426
427 pattern_cmd->patterns[i].pattern_type =
428 WOWLAN_PATTERN_TYPE_BITMASK;
429
430 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
431 wowlan->patterns[i].mask, mask_len);
432 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
433 wowlan->patterns[i].pattern,
434 wowlan->patterns[i].pattern_len);
435 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
436 pattern_cmd->patterns[i].u.bitmask.pattern_size =
437 wowlan->patterns[i].pattern_len;
438 }
439
440 cmd.data[0] = pattern_cmd;
441 err = iwl_mvm_send_cmd(mvm, &cmd);
442 kfree(pattern_cmd);
443 return err;
444}
445
446static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
447 struct ieee80211_sta *ap_sta)
448{
449 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
450 struct ieee80211_chanctx_conf *ctx;
451 u8 chains_static, chains_dynamic;
452 struct cfg80211_chan_def chandef;
453 int ret, i;
454 struct iwl_binding_cmd_v1 binding_cmd = {};
455 struct iwl_time_quota_cmd quota_cmd = {};
456 struct iwl_time_quota_data *quota;
457 u32 status;
458
459 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
460 return -EINVAL;
461
462
463 if (WARN_ON(!mvmvif->phy_ctxt))
464 return -EINVAL;
465
466 rcu_read_lock();
467 ctx = rcu_dereference(vif->chanctx_conf);
468 if (WARN_ON(!ctx)) {
469 rcu_read_unlock();
470 return -EINVAL;
471 }
472 chandef = ctx->def;
473 chains_static = ctx->rx_chains_static;
474 chains_dynamic = ctx->rx_chains_dynamic;
475 rcu_read_unlock();
476
477 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
478 chains_static, chains_dynamic);
479 if (ret)
480 return ret;
481
482
483 mvmvif->uploaded = false;
484
485 if (WARN_ON(!vif->bss_conf.assoc))
486 return -EINVAL;
487
488 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
489 if (ret)
490 return ret;
491
492
493 binding_cmd.id_and_color =
494 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
495 mvmvif->phy_ctxt->color));
496 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
497 binding_cmd.phy =
498 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
499 mvmvif->phy_ctxt->color));
500 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
501 mvmvif->color));
502 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
503 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
504
505 status = 0;
506 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
507 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
508 &status);
509 if (ret) {
510 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
511 return ret;
512 }
513
514 if (status) {
515 IWL_ERR(mvm, "Binding command failed: %u\n", status);
516 return -EIO;
517 }
518
519 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
520 if (ret)
521 return ret;
522 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
523
524 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
525 if (ret)
526 return ret;
527
528
529 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0);
530 quota->id_and_color =
531 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
532 mvmvif->phy_ctxt->color));
533 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
534 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
535
536 for (i = 1; i < MAX_BINDINGS; i++) {
537 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i);
538 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
539 }
540
541 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
542 iwl_mvm_quota_cmd_size(mvm), "a_cmd);
543 if (ret)
544 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
545
546 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
547 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
548
549 return 0;
550}
551
552static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
553 struct ieee80211_vif *vif)
554{
555 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
556 struct iwl_nonqos_seq_query_cmd query_cmd = {
557 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
558 .mac_id_n_color =
559 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
560 mvmvif->color)),
561 };
562 struct iwl_host_cmd cmd = {
563 .id = NON_QOS_TX_COUNTER_CMD,
564 .flags = CMD_WANT_SKB,
565 };
566 int err;
567 u32 size;
568
569 cmd.data[0] = &query_cmd;
570 cmd.len[0] = sizeof(query_cmd);
571
572 err = iwl_mvm_send_cmd(mvm, &cmd);
573 if (err)
574 return err;
575
576 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
577 if (size < sizeof(__le16)) {
578 err = -EINVAL;
579 } else {
580 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
581
582 err = (u16) (err - 0x10);
583 }
584
585 iwl_free_resp(&cmd);
586 return err;
587}
588
589void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
590{
591 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
592 struct iwl_nonqos_seq_query_cmd query_cmd = {
593 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
594 .mac_id_n_color =
595 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
596 mvmvif->color)),
597 .value = cpu_to_le16(mvmvif->seqno),
598 };
599
600
601 if (!mvmvif->seqno_valid)
602 return;
603
604 mvmvif->seqno_valid = false;
605
606 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
607 sizeof(query_cmd), &query_cmd))
608 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
609}
610
611static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
612{
613 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
614
615 iwl_mvm_stop_device(mvm);
616
617
618
619
620
621
622
623
624
625
626 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
627
628
629 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
630
631 mvm->ptk_ivlen = 0;
632 mvm->ptk_icvlen = 0;
633 mvm->ptk_ivlen = 0;
634 mvm->ptk_icvlen = 0;
635
636 return iwl_mvm_load_d3_fw(mvm);
637}
638
639static int
640iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
641 struct cfg80211_wowlan *wowlan,
642 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
643 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
644 struct ieee80211_sta *ap_sta)
645{
646 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
647
648
649
650 wowlan_config_cmd->is_11n_connection =
651 ap_sta->ht_cap.ht_supported;
652 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
653 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
654
655 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
656 WOWLAN_CONFIGURATION, 0) < 6) {
657
658 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
659
660 if (ret < 0)
661 return ret;
662
663 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
664 }
665
666 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
667
668 if (wowlan->disconnect)
669 wowlan_config_cmd->wakeup_filter |=
670 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
671 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
672 if (wowlan->magic_pkt)
673 wowlan_config_cmd->wakeup_filter |=
674 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
675 if (wowlan->gtk_rekey_failure)
676 wowlan_config_cmd->wakeup_filter |=
677 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
678 if (wowlan->eap_identity_req)
679 wowlan_config_cmd->wakeup_filter |=
680 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
681 if (wowlan->four_way_handshake)
682 wowlan_config_cmd->wakeup_filter |=
683 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
684 if (wowlan->n_patterns)
685 wowlan_config_cmd->wakeup_filter |=
686 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
687
688 if (wowlan->rfkill_release)
689 wowlan_config_cmd->wakeup_filter |=
690 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
691
692 if (wowlan->tcp) {
693
694
695
696
697 wowlan_config_cmd->wakeup_filter |=
698 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
699 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
700 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
701 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
702 }
703
704 if (wowlan->any) {
705 wowlan_config_cmd->wakeup_filter |=
706 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
707 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
708 IWL_WOWLAN_WAKEUP_RX_FRAME |
709 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
710 }
711
712 return 0;
713}
714
715static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
716 struct ieee80211_vif *vif,
717 u32 cmd_flags)
718{
719 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
720 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd = &kek_kck_cmd;
721 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
722 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
723 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
724 struct wowlan_key_data key_data = {
725 .configure_keys = !unified,
726 .use_rsc_tsc = false,
727 .tkip = &tkip_cmd,
728 .use_tkip = false,
729 .kek_kck_cmd = _kek_kck_cmd,
730 };
731 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
732 int ret;
733 u8 cmd_ver;
734 size_t cmd_size;
735
736 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
737 if (!key_data.rsc_tsc)
738 return -ENOMEM;
739
740
741
742
743
744
745
746
747
748
749
750
751
752 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
753 &key_data);
754
755 if (key_data.error) {
756 ret = -EIO;
757 goto out;
758 }
759
760 if (key_data.use_rsc_tsc) {
761 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
762 WOWLAN_TSC_RSC_PARAM,
763 IWL_FW_CMD_VER_UNKNOWN);
764 int size;
765
766 if (ver == 4) {
767 size = sizeof(*key_data.rsc_tsc);
768 key_data.rsc_tsc->sta_id =
769 cpu_to_le32(mvmvif->ap_sta_id);
770
771 } else if (ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
772 size = sizeof(key_data.rsc_tsc->params);
773 } else {
774 ret = 0;
775 WARN_ON_ONCE(1);
776 goto out;
777 }
778
779 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
780 cmd_flags,
781 size,
782 key_data.rsc_tsc);
783
784 if (ret)
785 goto out;
786 }
787
788 if (key_data.use_tkip &&
789 !fw_has_api(&mvm->fw->ucode_capa,
790 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
791 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
792 WOWLAN_TKIP_PARAM,
793 IWL_FW_CMD_VER_UNKNOWN);
794 int size;
795
796 if (ver == 2) {
797 size = sizeof(tkip_cmd);
798 key_data.tkip->sta_id =
799 cpu_to_le32(mvmvif->ap_sta_id);
800 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
801 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
802 } else {
803 ret = -EINVAL;
804 WARN_ON_ONCE(1);
805 goto out;
806 }
807
808
809 ret = iwl_mvm_send_cmd_pdu(mvm,
810 WOWLAN_TKIP_PARAM,
811 cmd_flags, size,
812 &tkip_cmd);
813 if (ret)
814 goto out;
815 }
816
817
818 if (mvmvif->rekey_data.valid) {
819 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
820 IWL_ALWAYS_LONG_GROUP,
821 WOWLAN_KEK_KCK_MATERIAL,
822 IWL_FW_CMD_VER_UNKNOWN);
823 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
824 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
825 return -EINVAL;
826
827 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
828 mvmvif->rekey_data.kck_len);
829 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
830 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
831 mvmvif->rekey_data.kek_len);
832 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
833 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
834 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
835 kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->ap_sta_id);
836
837 if (cmd_ver == 4) {
838 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
839 } else {
840 if (cmd_ver == 3)
841 cmd_size =
842 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
843 else
844 cmd_size =
845 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
846
847 _kek_kck_cmd = (void *)
848 ((u8 *)_kek_kck_cmd) + sizeof(kek_kck_cmd.sta_id);
849 }
850
851 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
852 mvmvif->rekey_data.akm);
853
854 ret = iwl_mvm_send_cmd_pdu(mvm,
855 WOWLAN_KEK_KCK_MATERIAL, cmd_flags,
856 cmd_size,
857 _kek_kck_cmd);
858 if (ret)
859 goto out;
860 }
861 ret = 0;
862out:
863 kfree(key_data.rsc_tsc);
864 return ret;
865}
866
867static int
868iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
869 struct cfg80211_wowlan *wowlan,
870 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
871 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
872 struct ieee80211_sta *ap_sta)
873{
874 int ret;
875 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
876 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
877
878 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
879
880 if (!unified_image) {
881 ret = iwl_mvm_switch_to_d3(mvm);
882 if (ret)
883 return ret;
884
885 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
886 if (ret)
887 return ret;
888 }
889
890
891
892
893
894
895 mutex_unlock(&mvm->mutex);
896 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, CMD_ASYNC);
897 mutex_lock(&mvm->mutex);
898 if (ret)
899 return ret;
900
901 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
902 sizeof(*wowlan_config_cmd),
903 wowlan_config_cmd);
904 if (ret)
905 return ret;
906
907 if (fw_has_api(&mvm->fw->ucode_capa,
908 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
909 ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
910 else
911 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
912 if (ret)
913 return ret;
914
915 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
916}
917
918static int
919iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
920 struct cfg80211_wowlan *wowlan,
921 struct cfg80211_sched_scan_request *nd_config,
922 struct ieee80211_vif *vif)
923{
924 int ret;
925 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
926 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
927
928 if (!unified_image) {
929 ret = iwl_mvm_switch_to_d3(mvm);
930 if (ret)
931 return ret;
932 } else {
933
934
935
936
937
938 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
939 if (ret)
940 return ret;
941 }
942
943 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
944 IWL_MVM_SCAN_NETDETECT);
945 if (ret)
946 return ret;
947
948 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
949 return -EBUSY;
950
951
952 if (nd_config->n_match_sets) {
953 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
954 sizeof(*nd_config->match_sets) *
955 nd_config->n_match_sets,
956 GFP_KERNEL);
957 if (mvm->nd_match_sets)
958 mvm->n_nd_match_sets = nd_config->n_match_sets;
959 }
960
961
962 mvm->nd_channels = kmemdup(nd_config->channels,
963 sizeof(*nd_config->channels) *
964 nd_config->n_channels,
965 GFP_KERNEL);
966 if (mvm->nd_channels)
967 mvm->n_nd_channels = nd_config->n_channels;
968
969 return 0;
970}
971
972static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
973{
974 kfree(mvm->nd_match_sets);
975 mvm->nd_match_sets = NULL;
976 mvm->n_nd_match_sets = 0;
977 kfree(mvm->nd_channels);
978 mvm->nd_channels = NULL;
979 mvm->n_nd_channels = 0;
980}
981
982static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
983 struct cfg80211_wowlan *wowlan,
984 bool test)
985{
986 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
987 struct ieee80211_vif *vif = NULL;
988 struct iwl_mvm_vif *mvmvif = NULL;
989 struct ieee80211_sta *ap_sta = NULL;
990 struct iwl_d3_manager_config d3_cfg_cmd_data = {
991
992
993
994
995
996 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
997 };
998 struct iwl_host_cmd d3_cfg_cmd = {
999 .id = D3_CONFIG_CMD,
1000 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1001 .data[0] = &d3_cfg_cmd_data,
1002 .len[0] = sizeof(d3_cfg_cmd_data),
1003 };
1004 int ret;
1005 int len __maybe_unused;
1006 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1007 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1008
1009 if (!wowlan) {
1010
1011
1012
1013
1014 WARN_ON(!test);
1015 return -EINVAL;
1016 }
1017
1018 mutex_lock(&mvm->mutex);
1019
1020 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1021
1022 synchronize_net();
1023
1024 vif = iwl_mvm_get_bss_vif(mvm);
1025 if (IS_ERR_OR_NULL(vif)) {
1026 ret = 1;
1027 goto out_noreset;
1028 }
1029
1030 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1031
1032 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
1033
1034 if (!wowlan->nd_config) {
1035 ret = 1;
1036 goto out_noreset;
1037 }
1038
1039 ret = iwl_mvm_netdetect_config(
1040 mvm, wowlan, wowlan->nd_config, vif);
1041 if (ret)
1042 goto out;
1043
1044 mvm->net_detect = true;
1045 } else {
1046 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1047
1048 wowlan_config_cmd.sta_id = mvmvif->ap_sta_id;
1049
1050 ap_sta = rcu_dereference_protected(
1051 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1052 lockdep_is_held(&mvm->mutex));
1053 if (IS_ERR_OR_NULL(ap_sta)) {
1054 ret = -EINVAL;
1055 goto out_noreset;
1056 }
1057
1058 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1059 vif, mvmvif, ap_sta);
1060 if (ret)
1061 goto out_noreset;
1062 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1063 vif, mvmvif, ap_sta);
1064 if (ret)
1065 goto out;
1066
1067 mvm->net_detect = false;
1068 }
1069
1070 ret = iwl_mvm_power_update_device(mvm);
1071 if (ret)
1072 goto out;
1073
1074 ret = iwl_mvm_power_update_mac(mvm);
1075 if (ret)
1076 goto out;
1077
1078#ifdef CONFIG_IWLWIFI_DEBUGFS
1079 if (mvm->d3_wake_sysassert)
1080 d3_cfg_cmd_data.wakeup_flags |=
1081 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1082#endif
1083
1084
1085
1086
1087
1088
1089 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1090 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1091
1092 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1093
1094
1095 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1096 if (ret)
1097 goto out;
1098#ifdef CONFIG_IWLWIFI_DEBUGFS
1099 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1100 if (len >= sizeof(u32)) {
1101 mvm->d3_test_pme_ptr =
1102 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1103 }
1104#endif
1105 iwl_free_resp(&d3_cfg_cmd);
1106
1107 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1108
1109 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1110 out:
1111 if (ret < 0) {
1112 iwl_mvm_free_nd(mvm);
1113
1114 if (!unified_image) {
1115 if (mvm->fw_restart > 0) {
1116 mvm->fw_restart--;
1117 ieee80211_restart_hw(mvm->hw);
1118 }
1119 }
1120
1121 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1122 }
1123 out_noreset:
1124 mutex_unlock(&mvm->mutex);
1125
1126 return ret;
1127}
1128
1129int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1130{
1131 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1132
1133 iwl_mvm_pause_tcm(mvm, true);
1134
1135 iwl_fw_runtime_suspend(&mvm->fwrt);
1136
1137 return __iwl_mvm_suspend(hw, wowlan, false);
1138}
1139
1140
1141struct iwl_wowlan_status_data {
1142 u16 pattern_number;
1143 u16 qos_seq_ctr[8];
1144 u32 wakeup_reasons;
1145 u32 wake_packet_length;
1146 u32 wake_packet_bufsize;
1147 const u8 *wake_packet;
1148};
1149
1150static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1151 struct ieee80211_vif *vif,
1152 struct iwl_wowlan_status_data *status)
1153{
1154 struct sk_buff *pkt = NULL;
1155 struct cfg80211_wowlan_wakeup wakeup = {
1156 .pattern_idx = -1,
1157 };
1158 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1159 u32 reasons = status->wakeup_reasons;
1160
1161 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1162 wakeup_report = NULL;
1163 goto report;
1164 }
1165
1166 pm_wakeup_event(mvm->dev, 0);
1167
1168 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1169 wakeup.magic_pkt = true;
1170
1171 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1172 wakeup.pattern_idx =
1173 status->pattern_number;
1174
1175 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1176 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1177 wakeup.disconnect = true;
1178
1179 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1180 wakeup.gtk_rekey_failure = true;
1181
1182 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1183 wakeup.rfkill_release = true;
1184
1185 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1186 wakeup.eap_identity_req = true;
1187
1188 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1189 wakeup.four_way_handshake = true;
1190
1191 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1192 wakeup.tcp_connlost = true;
1193
1194 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1195 wakeup.tcp_nomoretokens = true;
1196
1197 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1198 wakeup.tcp_match = true;
1199
1200 if (status->wake_packet_bufsize) {
1201 int pktsize = status->wake_packet_bufsize;
1202 int pktlen = status->wake_packet_length;
1203 const u8 *pktdata = status->wake_packet;
1204 struct ieee80211_hdr *hdr = (void *)pktdata;
1205 int truncated = pktlen - pktsize;
1206
1207
1208 if (WARN_ON_ONCE(truncated < 0))
1209 truncated = 0;
1210
1211 if (ieee80211_is_data(hdr->frame_control)) {
1212 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1213 int ivlen = 0, icvlen = 4;
1214
1215 pkt = alloc_skb(pktsize, GFP_KERNEL);
1216 if (!pkt)
1217 goto report;
1218
1219 skb_put_data(pkt, pktdata, hdrlen);
1220 pktdata += hdrlen;
1221 pktsize -= hdrlen;
1222
1223 if (ieee80211_has_protected(hdr->frame_control)) {
1224
1225
1226
1227
1228
1229
1230 if (is_multicast_ether_addr(hdr->addr1)) {
1231 ivlen = mvm->gtk_ivlen;
1232 icvlen += mvm->gtk_icvlen;
1233 } else {
1234 ivlen = mvm->ptk_ivlen;
1235 icvlen += mvm->ptk_icvlen;
1236 }
1237 }
1238
1239
1240 if (truncated >= icvlen) {
1241 icvlen = 0;
1242 truncated -= icvlen;
1243 } else {
1244 icvlen -= truncated;
1245 truncated = 0;
1246 }
1247
1248 pktsize -= ivlen + icvlen;
1249 pktdata += ivlen;
1250
1251 skb_put_data(pkt, pktdata, pktsize);
1252
1253 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1254 goto report;
1255 wakeup.packet = pkt->data;
1256 wakeup.packet_present_len = pkt->len;
1257 wakeup.packet_len = pkt->len - truncated;
1258 wakeup.packet_80211 = false;
1259 } else {
1260 int fcslen = 4;
1261
1262 if (truncated >= 4) {
1263 truncated -= 4;
1264 fcslen = 0;
1265 } else {
1266 fcslen -= truncated;
1267 truncated = 0;
1268 }
1269 pktsize -= fcslen;
1270 wakeup.packet = status->wake_packet;
1271 wakeup.packet_present_len = pktsize;
1272 wakeup.packet_len = pktlen - truncated;
1273 wakeup.packet_80211 = true;
1274 }
1275 }
1276
1277 report:
1278 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1279 kfree_skb(pkt);
1280}
1281
1282static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1283 struct ieee80211_key_seq *seq)
1284{
1285 u64 pn;
1286
1287 pn = le64_to_cpu(sc->pn);
1288 seq->ccmp.pn[0] = pn >> 40;
1289 seq->ccmp.pn[1] = pn >> 32;
1290 seq->ccmp.pn[2] = pn >> 24;
1291 seq->ccmp.pn[3] = pn >> 16;
1292 seq->ccmp.pn[4] = pn >> 8;
1293 seq->ccmp.pn[5] = pn;
1294}
1295
1296static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1297 struct ieee80211_key_seq *seq)
1298{
1299 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1300 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1301}
1302
1303static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs,
1304 struct ieee80211_sta *sta,
1305 struct ieee80211_key_conf *key)
1306{
1307 int tid;
1308
1309 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1310
1311 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
1312 struct iwl_mvm_sta *mvmsta;
1313 struct iwl_mvm_key_pn *ptk_pn;
1314
1315 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1316
1317 rcu_read_lock();
1318 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1319 if (WARN_ON(!ptk_pn)) {
1320 rcu_read_unlock();
1321 return;
1322 }
1323
1324 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1325 struct ieee80211_key_seq seq = {};
1326 int i;
1327
1328 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1329 ieee80211_set_key_rx_seq(key, tid, &seq);
1330 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1331 memcpy(ptk_pn->q[i].pn[tid],
1332 seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1333 }
1334 rcu_read_unlock();
1335 } else {
1336 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1337 struct ieee80211_key_seq seq = {};
1338
1339 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1340 ieee80211_set_key_rx_seq(key, tid, &seq);
1341 }
1342 }
1343}
1344
1345static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1346 struct ieee80211_key_conf *key)
1347{
1348 int tid;
1349
1350 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1351
1352 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1353 struct ieee80211_key_seq seq = {};
1354
1355 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1356 ieee80211_set_key_rx_seq(key, tid, &seq);
1357 }
1358}
1359
1360static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
1361 struct ieee80211_key_conf *key,
1362 struct iwl_wowlan_status *status)
1363{
1364 union iwl_all_tsc_rsc *rsc = &status->gtk[0].rsc.all_tsc_rsc;
1365
1366 switch (key->cipher) {
1367 case WLAN_CIPHER_SUITE_CCMP:
1368 case WLAN_CIPHER_SUITE_GCMP:
1369 case WLAN_CIPHER_SUITE_GCMP_256:
1370 iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key);
1371 break;
1372 case WLAN_CIPHER_SUITE_TKIP:
1373 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1374 break;
1375 default:
1376 WARN_ON(1);
1377 }
1378}
1379
1380struct iwl_mvm_d3_gtk_iter_data {
1381 struct iwl_mvm *mvm;
1382 struct iwl_wowlan_status *status;
1383 void *last_gtk;
1384 u32 cipher;
1385 bool find_phase, unhandled_cipher;
1386 int num_keys;
1387};
1388
1389static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1390 struct ieee80211_vif *vif,
1391 struct ieee80211_sta *sta,
1392 struct ieee80211_key_conf *key,
1393 void *_data)
1394{
1395 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1396
1397 if (data->unhandled_cipher)
1398 return;
1399
1400 switch (key->cipher) {
1401 case WLAN_CIPHER_SUITE_WEP40:
1402 case WLAN_CIPHER_SUITE_WEP104:
1403
1404 return;
1405 case WLAN_CIPHER_SUITE_CCMP:
1406 case WLAN_CIPHER_SUITE_GCMP:
1407 case WLAN_CIPHER_SUITE_GCMP_256:
1408 case WLAN_CIPHER_SUITE_TKIP:
1409
1410 break;
1411 default:
1412
1413 data->unhandled_cipher = true;
1414 return;
1415 }
1416
1417 data->num_keys++;
1418
1419
1420
1421
1422
1423 if (sta) {
1424 struct ieee80211_key_seq seq = {};
1425 union iwl_all_tsc_rsc *sc =
1426 &data->status->gtk[0].rsc.all_tsc_rsc;
1427
1428 if (data->find_phase)
1429 return;
1430
1431 switch (key->cipher) {
1432 case WLAN_CIPHER_SUITE_CCMP:
1433 case WLAN_CIPHER_SUITE_GCMP:
1434 case WLAN_CIPHER_SUITE_GCMP_256:
1435 iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
1436 sta, key);
1437 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
1438 break;
1439 case WLAN_CIPHER_SUITE_TKIP:
1440 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1441 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1442 atomic64_set(&key->tx_pn,
1443 (u64)seq.tkip.iv16 |
1444 ((u64)seq.tkip.iv32 << 16));
1445 break;
1446 }
1447
1448
1449 return;
1450 }
1451
1452 if (data->find_phase) {
1453 data->last_gtk = key;
1454 data->cipher = key->cipher;
1455 return;
1456 }
1457
1458 if (data->status->num_of_gtk_rekeys)
1459 ieee80211_remove_key(key);
1460 else if (data->last_gtk == key)
1461 iwl_mvm_set_key_rx_seq(data->mvm, key, data->status);
1462}
1463
1464static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1465 struct ieee80211_vif *vif,
1466 struct iwl_wowlan_status *status)
1467{
1468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1469 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1470 .mvm = mvm,
1471 .status = status,
1472 };
1473 u32 disconnection_reasons =
1474 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1475 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1476
1477 if (!status || !vif->bss_conf.bssid)
1478 return false;
1479
1480 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1481 return false;
1482
1483
1484 gtkdata.find_phase = true;
1485 ieee80211_iter_keys(mvm->hw, vif,
1486 iwl_mvm_d3_update_keys, >kdata);
1487
1488 if (gtkdata.unhandled_cipher)
1489 return false;
1490 if (!gtkdata.num_keys)
1491 goto out;
1492 if (!gtkdata.last_gtk)
1493 return false;
1494
1495
1496
1497
1498
1499 gtkdata.find_phase = false;
1500 ieee80211_iter_keys(mvm->hw, vif,
1501 iwl_mvm_d3_update_keys, >kdata);
1502
1503 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
1504 le32_to_cpu(status->num_of_gtk_rekeys));
1505 if (status->num_of_gtk_rekeys) {
1506 struct ieee80211_key_conf *key;
1507 struct {
1508 struct ieee80211_key_conf conf;
1509 u8 key[32];
1510 } conf = {
1511 .conf.cipher = gtkdata.cipher,
1512 .conf.keyidx =
1513 iwlmvm_wowlan_gtk_idx(&status->gtk[0]),
1514 };
1515 __be64 replay_ctr;
1516
1517 IWL_DEBUG_WOWLAN(mvm,
1518 "Received from FW GTK cipher %d, key index %d\n",
1519 conf.conf.cipher, conf.conf.keyidx);
1520 switch (gtkdata.cipher) {
1521 case WLAN_CIPHER_SUITE_CCMP:
1522 case WLAN_CIPHER_SUITE_GCMP:
1523 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1524 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1525 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1526 memcpy(conf.conf.key, status->gtk[0].key,
1527 WLAN_KEY_LEN_CCMP);
1528 break;
1529 case WLAN_CIPHER_SUITE_GCMP_256:
1530 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1531 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
1532 memcpy(conf.conf.key, status->gtk[0].key,
1533 WLAN_KEY_LEN_GCMP_256);
1534 break;
1535 case WLAN_CIPHER_SUITE_TKIP:
1536 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1537 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1538 memcpy(conf.conf.key, status->gtk[0].key, 16);
1539
1540 memcpy(conf.conf.key +
1541 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1542 status->gtk[0].tkip_mic_key, 8);
1543 break;
1544 }
1545
1546 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1547 if (IS_ERR(key))
1548 return false;
1549 iwl_mvm_set_key_rx_seq(mvm, key, status);
1550
1551 replay_ctr =
1552 cpu_to_be64(le64_to_cpu(status->replay_ctr));
1553
1554 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1555 (void *)&replay_ctr, GFP_KERNEL);
1556 }
1557
1558out:
1559 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1560 WOWLAN_GET_STATUSES, 0) < 10) {
1561 mvmvif->seqno_valid = true;
1562
1563 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1564 }
1565
1566 return true;
1567}
1568
1569
1570#define iwl_mvm_parse_wowlan_status_common(_ver) \
1571static struct iwl_wowlan_status * \
1572iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
1573 void *_data, int len) \
1574{ \
1575 struct iwl_wowlan_status *status; \
1576 struct iwl_wowlan_status_ ##_ver *data = _data; \
1577 int data_size; \
1578 \
1579 if (len < sizeof(*data)) { \
1580 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
1581 return ERR_PTR(-EIO); \
1582 } \
1583 \
1584 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
1585 if (len != sizeof(*data) + data_size) { \
1586 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
1587 return ERR_PTR(-EIO); \
1588 } \
1589 \
1590 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL); \
1591 if (!status) \
1592 return ERR_PTR(-ENOMEM); \
1593 \
1594 \
1595 status->replay_ctr = data->replay_ctr; \
1596 status->pattern_number = data->pattern_number; \
1597 status->non_qos_seq_ctr = data->non_qos_seq_ctr; \
1598 memcpy(status->qos_seq_ctr, data->qos_seq_ctr, \
1599 sizeof(status->qos_seq_ctr)); \
1600 status->wakeup_reasons = data->wakeup_reasons; \
1601 status->num_of_gtk_rekeys = data->num_of_gtk_rekeys; \
1602 status->received_beacons = data->received_beacons; \
1603 status->wake_packet_length = data->wake_packet_length; \
1604 status->wake_packet_bufsize = data->wake_packet_bufsize; \
1605 memcpy(status->wake_packet, data->wake_packet, \
1606 le32_to_cpu(status->wake_packet_bufsize)); \
1607 \
1608 return status; \
1609}
1610
1611iwl_mvm_parse_wowlan_status_common(v6)
1612iwl_mvm_parse_wowlan_status_common(v7)
1613iwl_mvm_parse_wowlan_status_common(v9)
1614
1615static struct iwl_wowlan_status *
1616iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
1617{
1618 struct iwl_wowlan_status *status;
1619 struct iwl_wowlan_get_status_cmd get_status_cmd = {
1620 .sta_id = cpu_to_le32(sta_id),
1621 };
1622 struct iwl_host_cmd cmd = {
1623 .id = WOWLAN_GET_STATUSES,
1624 .flags = CMD_WANT_SKB,
1625 .data = { &get_status_cmd, },
1626 .len = { sizeof(get_status_cmd), },
1627 };
1628 int ret, len;
1629 u8 notif_ver;
1630 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1631 WOWLAN_GET_STATUSES,
1632 IWL_FW_CMD_VER_UNKNOWN);
1633
1634 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
1635 cmd.len[0] = 0;
1636
1637 lockdep_assert_held(&mvm->mutex);
1638
1639 ret = iwl_mvm_send_cmd(mvm, &cmd);
1640 if (ret) {
1641 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
1642 return ERR_PTR(ret);
1643 }
1644
1645 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1646
1647
1648 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1649 WOWLAN_GET_STATUSES, 0);
1650 if (!notif_ver)
1651 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
1652 WOWLAN_GET_STATUSES, 7);
1653
1654 if (!fw_has_api(&mvm->fw->ucode_capa,
1655 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
1656 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
1657
1658 status = iwl_mvm_parse_wowlan_status_common_v6(mvm,
1659 cmd.resp_pkt->data,
1660 len);
1661 if (IS_ERR(status))
1662 goto out_free_resp;
1663
1664 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
1665 sizeof(status->gtk[0].key));
1666 BUILD_BUG_ON(sizeof(v6->gtk.tkip_mic_key) >
1667 sizeof(status->gtk[0].tkip_mic_key));
1668
1669
1670 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
1671 sizeof(v6->gtk.decrypt_key));
1672 memcpy(status->gtk[0].tkip_mic_key, v6->gtk.tkip_mic_key,
1673 sizeof(v6->gtk.tkip_mic_key));
1674 memcpy(&status->gtk[0].rsc, &v6->gtk.rsc,
1675 sizeof(status->gtk[0].rsc));
1676
1677
1678 status->gtk[0].key_len = 16;
1679
1680
1681
1682
1683
1684
1685 status->gtk[0].key_flags = v6->gtk.key_index | BIT(7);
1686 } else if (notif_ver == 7) {
1687 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
1688
1689 status = iwl_mvm_parse_wowlan_status_common_v7(mvm,
1690 cmd.resp_pkt->data,
1691 len);
1692 if (IS_ERR(status))
1693 goto out_free_resp;
1694
1695 status->gtk[0] = v7->gtk[0];
1696 status->igtk[0] = v7->igtk[0];
1697 } else if (notif_ver == 9 || notif_ver == 10) {
1698 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
1699
1700 status = iwl_mvm_parse_wowlan_status_common_v9(mvm,
1701 cmd.resp_pkt->data,
1702 len);
1703 if (IS_ERR(status))
1704 goto out_free_resp;
1705
1706 status->gtk[0] = v9->gtk[0];
1707 status->igtk[0] = v9->igtk[0];
1708
1709 status->tid_tear_down = v9->tid_tear_down;
1710 } else {
1711 IWL_ERR(mvm,
1712 "Firmware advertises unknown WoWLAN status response %d!\n",
1713 notif_ver);
1714 status = ERR_PTR(-EIO);
1715 }
1716
1717out_free_resp:
1718 iwl_free_resp(&cmd);
1719 return status;
1720}
1721
1722static struct iwl_wowlan_status *
1723iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, u8 sta_id)
1724{
1725 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1726 OFFLOADS_QUERY_CMD,
1727 IWL_FW_CMD_VER_UNKNOWN);
1728 __le32 station_id = cpu_to_le32(sta_id);
1729 u32 cmd_size = cmd_ver != IWL_FW_CMD_VER_UNKNOWN ? sizeof(station_id) : 0;
1730
1731 if (!mvm->net_detect) {
1732
1733 int ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0,
1734 cmd_size, &station_id);
1735 if (ret)
1736 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1737 }
1738
1739 return iwl_mvm_send_wowlan_get_status(mvm, sta_id);
1740}
1741
1742
1743static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1744 struct ieee80211_vif *vif)
1745{
1746 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1747 struct iwl_wowlan_status_data status;
1748 struct iwl_wowlan_status *fw_status;
1749 int i;
1750 bool keep;
1751 struct iwl_mvm_sta *mvm_ap_sta;
1752
1753 fw_status = iwl_mvm_get_wakeup_status(mvm, mvmvif->ap_sta_id);
1754 if (IS_ERR_OR_NULL(fw_status))
1755 goto out_unlock;
1756
1757 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
1758 le32_to_cpu(fw_status->wakeup_reasons));
1759
1760 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
1761 for (i = 0; i < 8; i++)
1762 status.qos_seq_ctr[i] =
1763 le16_to_cpu(fw_status->qos_seq_ctr[i]);
1764 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
1765 status.wake_packet_length =
1766 le32_to_cpu(fw_status->wake_packet_length);
1767 status.wake_packet_bufsize =
1768 le32_to_cpu(fw_status->wake_packet_bufsize);
1769 status.wake_packet = fw_status->wake_packet;
1770
1771
1772 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
1773 if (!mvm_ap_sta)
1774 goto out_free;
1775
1776 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1777 u16 seq = status.qos_seq_ctr[i];
1778
1779 seq += 0x10;
1780 mvm_ap_sta->tid_data[i].seq_number = seq;
1781 }
1782
1783 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
1784 i = mvm->offload_tid;
1785 iwl_trans_set_q_ptrs(mvm->trans,
1786 mvm_ap_sta->tid_data[i].txq_id,
1787 mvm_ap_sta->tid_data[i].seq_number >> 4);
1788 }
1789
1790
1791 mutex_unlock(&mvm->mutex);
1792
1793 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
1794
1795 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
1796
1797 kfree(fw_status);
1798 return keep;
1799
1800out_free:
1801 kfree(fw_status);
1802out_unlock:
1803 mutex_unlock(&mvm->mutex);
1804 return false;
1805}
1806
1807#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
1808 IWL_SCAN_MAX_PROFILES)
1809
1810struct iwl_mvm_nd_query_results {
1811 u32 matched_profiles;
1812 u8 matches[ND_QUERY_BUF_LEN];
1813};
1814
1815static int
1816iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
1817 struct iwl_mvm_nd_query_results *results)
1818{
1819 struct iwl_scan_offload_profiles_query *query;
1820 struct iwl_host_cmd cmd = {
1821 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
1822 .flags = CMD_WANT_SKB,
1823 };
1824 int ret, len;
1825 size_t query_len, matches_len;
1826 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
1827
1828 ret = iwl_mvm_send_cmd(mvm, &cmd);
1829 if (ret) {
1830 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
1831 return ret;
1832 }
1833
1834 if (fw_has_api(&mvm->fw->ucode_capa,
1835 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1836 query_len = sizeof(struct iwl_scan_offload_profiles_query);
1837 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
1838 max_profiles;
1839 } else {
1840 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
1841 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
1842 max_profiles;
1843 }
1844
1845 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1846 if (len < query_len) {
1847 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
1848 ret = -EIO;
1849 goto out_free_resp;
1850 }
1851
1852 query = (void *)cmd.resp_pkt->data;
1853
1854 results->matched_profiles = le32_to_cpu(query->matched_profiles);
1855 memcpy(results->matches, query->matches, matches_len);
1856
1857#ifdef CONFIG_IWLWIFI_DEBUGFS
1858 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
1859#endif
1860
1861out_free_resp:
1862 iwl_free_resp(&cmd);
1863 return ret;
1864}
1865
1866static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
1867 struct iwl_mvm_nd_query_results *query,
1868 int idx)
1869{
1870 int n_chans = 0, i;
1871
1872 if (fw_has_api(&mvm->fw->ucode_capa,
1873 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1874 struct iwl_scan_offload_profile_match *matches =
1875 (struct iwl_scan_offload_profile_match *)query->matches;
1876
1877 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
1878 n_chans += hweight8(matches[idx].matching_channels[i]);
1879 } else {
1880 struct iwl_scan_offload_profile_match_v1 *matches =
1881 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
1882
1883 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
1884 n_chans += hweight8(matches[idx].matching_channels[i]);
1885 }
1886
1887 return n_chans;
1888}
1889
1890static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
1891 struct iwl_mvm_nd_query_results *query,
1892 struct cfg80211_wowlan_nd_match *match,
1893 int idx)
1894{
1895 int i;
1896
1897 if (fw_has_api(&mvm->fw->ucode_capa,
1898 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1899 struct iwl_scan_offload_profile_match *matches =
1900 (struct iwl_scan_offload_profile_match *)query->matches;
1901
1902 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
1903 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
1904 match->channels[match->n_channels++] =
1905 mvm->nd_channels[i]->center_freq;
1906 } else {
1907 struct iwl_scan_offload_profile_match_v1 *matches =
1908 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
1909
1910 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
1911 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
1912 match->channels[match->n_channels++] =
1913 mvm->nd_channels[i]->center_freq;
1914 }
1915}
1916
1917static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
1918 struct ieee80211_vif *vif)
1919{
1920 struct cfg80211_wowlan_nd_info *net_detect = NULL;
1921 struct cfg80211_wowlan_wakeup wakeup = {
1922 .pattern_idx = -1,
1923 };
1924 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1925 struct iwl_mvm_nd_query_results query;
1926 struct iwl_wowlan_status *fw_status;
1927 unsigned long matched_profiles;
1928 u32 reasons = 0;
1929 int i, n_matches, ret;
1930
1931 fw_status = iwl_mvm_get_wakeup_status(mvm, IWL_MVM_INVALID_STA);
1932 if (!IS_ERR_OR_NULL(fw_status)) {
1933 reasons = le32_to_cpu(fw_status->wakeup_reasons);
1934 kfree(fw_status);
1935 }
1936
1937 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1938 wakeup.rfkill_release = true;
1939
1940 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
1941 goto out;
1942
1943 ret = iwl_mvm_netdetect_query_results(mvm, &query);
1944 if (ret || !query.matched_profiles) {
1945 wakeup_report = NULL;
1946 goto out;
1947 }
1948
1949 matched_profiles = query.matched_profiles;
1950 if (mvm->n_nd_match_sets) {
1951 n_matches = hweight_long(matched_profiles);
1952 } else {
1953 IWL_ERR(mvm, "no net detect match information available\n");
1954 n_matches = 0;
1955 }
1956
1957 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
1958 GFP_KERNEL);
1959 if (!net_detect || !n_matches)
1960 goto out_report_nd;
1961
1962 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
1963 struct cfg80211_wowlan_nd_match *match;
1964 int idx, n_channels = 0;
1965
1966 n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
1967
1968 match = kzalloc(struct_size(match, channels, n_channels),
1969 GFP_KERNEL);
1970 if (!match)
1971 goto out_report_nd;
1972
1973 net_detect->matches[net_detect->n_matches++] = match;
1974
1975
1976
1977
1978 idx = mvm->n_nd_match_sets - i - 1;
1979 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
1980 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
1981 match->ssid.ssid_len);
1982
1983 if (mvm->n_nd_channels < n_channels)
1984 continue;
1985
1986 iwl_mvm_query_set_freqs(mvm, &query, match, i);
1987 }
1988
1989out_report_nd:
1990 wakeup.net_detect = net_detect;
1991out:
1992 iwl_mvm_free_nd(mvm);
1993
1994 mutex_unlock(&mvm->mutex);
1995 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1996
1997 if (net_detect) {
1998 for (i = 0; i < net_detect->n_matches; i++)
1999 kfree(net_detect->matches[i]);
2000 kfree(net_detect);
2001 }
2002}
2003
2004static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2005 struct ieee80211_vif *vif)
2006{
2007
2008 if (data == vif)
2009 return;
2010
2011 if (vif->type == NL80211_IFTYPE_STATION)
2012 ieee80211_resume_disconnect(vif);
2013}
2014
2015static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
2016{
2017 struct error_table_start {
2018
2019 u32 valid;
2020 __le32 err_id;
2021 } err_info;
2022
2023 if (!base)
2024 return false;
2025
2026 iwl_trans_read_mem_bytes(trans, base,
2027 &err_info, sizeof(err_info));
2028 if (err_info.valid && err_id)
2029 *err_id = le32_to_cpu(err_info.err_id);
2030
2031 return !!err_info.valid;
2032}
2033
2034static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2035 struct ieee80211_vif *vif)
2036{
2037 u32 err_id;
2038
2039
2040 if (iwl_mvm_rt_status(mvm->trans,
2041 mvm->trans->dbg.lmac_error_event_table[0],
2042 &err_id)) {
2043 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2044 struct cfg80211_wowlan_wakeup wakeup = {
2045 .rfkill_release = true,
2046 };
2047 ieee80211_report_wowlan_wakeup(vif, &wakeup,
2048 GFP_KERNEL);
2049 }
2050 return true;
2051 }
2052
2053
2054 if (iwl_mvm_rt_status(mvm->trans,
2055 mvm->trans->dbg.lmac_error_event_table[1], NULL))
2056 return true;
2057
2058
2059 if (iwl_mvm_rt_status(mvm->trans,
2060 mvm->trans->dbg.umac_error_event_table, NULL))
2061 return true;
2062
2063 return false;
2064}
2065
2066static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
2067{
2068 struct ieee80211_vif *vif = NULL;
2069 int ret = 1;
2070 enum iwl_d3_status d3_status;
2071 bool keep = false;
2072 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2073 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2074 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2075 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
2076
2077 mutex_lock(&mvm->mutex);
2078
2079 mvm->last_reset_or_resume_time_jiffies = jiffies;
2080
2081
2082 vif = iwl_mvm_get_bss_vif(mvm);
2083 if (IS_ERR_OR_NULL(vif))
2084 goto err;
2085
2086 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2087
2088 if (iwl_mvm_check_rt_status(mvm, vif)) {
2089 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2090 iwl_mvm_dump_nic_error_log(mvm);
2091 iwl_dbg_tlv_time_point(&mvm->fwrt,
2092 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
2093 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
2094 false, 0);
2095 ret = 1;
2096 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2097 goto err;
2098 }
2099
2100 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
2101 if (ret)
2102 goto err;
2103
2104 if (d3_status != IWL_D3_STATUS_ALIVE) {
2105 IWL_INFO(mvm, "Device was reset during suspend\n");
2106 goto err;
2107 }
2108
2109 if (d0i3_first) {
2110 struct iwl_host_cmd cmd = {
2111 .id = D0I3_END_CMD,
2112 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
2113 };
2114 int len;
2115
2116 ret = iwl_mvm_send_cmd(mvm, &cmd);
2117 if (ret < 0) {
2118 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2119 ret);
2120 goto err;
2121 }
2122 switch (mvm->cmd_ver.d0i3_resp) {
2123 case 0:
2124 break;
2125 case 1:
2126 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2127 if (len != sizeof(u32)) {
2128 IWL_ERR(mvm,
2129 "Error with D0I3_END_CMD response size (%d)\n",
2130 len);
2131 goto err;
2132 }
2133 if (IWL_D0I3_RESET_REQUIRE &
2134 le32_to_cpu(*(__le32 *)cmd.resp_pkt->data)) {
2135 iwl_write32(mvm->trans, CSR_RESET,
2136 CSR_RESET_REG_FLAG_FORCE_NMI);
2137 iwl_free_resp(&cmd);
2138 }
2139 break;
2140 default:
2141 WARN_ON(1);
2142 }
2143 }
2144
2145 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2146
2147
2148
2149
2150
2151 iwl_mvm_update_changed_regdom(mvm);
2152
2153
2154 iwl_mvm_ppag_send_cmd(mvm);
2155
2156 if (!unified_image)
2157
2158 iwl_mvm_sar_select_profile(mvm, 1, 1);
2159
2160 if (mvm->net_detect) {
2161
2162
2163
2164
2165
2166
2167 if (unified_image)
2168 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2169 false);
2170
2171 iwl_mvm_query_netdetect_reasons(mvm, vif);
2172
2173 goto out;
2174 } else {
2175 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
2176#ifdef CONFIG_IWLWIFI_DEBUGFS
2177 if (keep)
2178 mvm->keep_vif = vif;
2179#endif
2180
2181 goto out_iterate;
2182 }
2183
2184err:
2185 iwl_mvm_free_nd(mvm);
2186 mutex_unlock(&mvm->mutex);
2187
2188out_iterate:
2189 if (!test)
2190 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
2191 IEEE80211_IFACE_ITER_NORMAL,
2192 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
2193
2194out:
2195 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
2196
2197
2198 if (unified_image && !ret) {
2199
2200 if (d0i3_first)
2201 return 0;
2202
2203 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2204 if (!ret)
2205 return 0;
2206 }
2207
2208
2209
2210
2211
2212
2213 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
2214
2215 return 1;
2216}
2217
2218int iwl_mvm_resume(struct ieee80211_hw *hw)
2219{
2220 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2221 int ret;
2222
2223 ret = __iwl_mvm_resume(mvm, false);
2224
2225 iwl_mvm_resume_tcm(mvm);
2226
2227 iwl_fw_runtime_resume(&mvm->fwrt);
2228
2229 return ret;
2230}
2231
2232void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2233{
2234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2235
2236 device_set_wakeup_enable(mvm->trans->dev, enabled);
2237}
2238
2239#ifdef CONFIG_IWLWIFI_DEBUGFS
2240static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2241{
2242 struct iwl_mvm *mvm = inode->i_private;
2243 int err;
2244
2245 if (mvm->d3_test_active)
2246 return -EBUSY;
2247
2248 file->private_data = inode->i_private;
2249
2250 iwl_mvm_pause_tcm(mvm, true);
2251
2252 iwl_fw_runtime_suspend(&mvm->fwrt);
2253
2254
2255 rtnl_lock();
2256 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2257 rtnl_unlock();
2258 if (err > 0)
2259 err = -EINVAL;
2260 if (err)
2261 return err;
2262
2263 mvm->d3_test_active = true;
2264 mvm->keep_vif = NULL;
2265 return 0;
2266}
2267
2268static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2269 size_t count, loff_t *ppos)
2270{
2271 struct iwl_mvm *mvm = file->private_data;
2272 u32 pme_asserted;
2273
2274 while (true) {
2275
2276 if (mvm->d3_test_pme_ptr) {
2277 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2278 mvm->d3_test_pme_ptr);
2279 if (pme_asserted)
2280 break;
2281 }
2282
2283 if (msleep_interruptible(100))
2284 break;
2285 }
2286
2287 return 0;
2288}
2289
2290static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2291 struct ieee80211_vif *vif)
2292{
2293
2294 if (_data == vif)
2295 return;
2296
2297 if (vif->type == NL80211_IFTYPE_STATION)
2298 ieee80211_connection_loss(vif);
2299}
2300
2301static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2302{
2303 struct iwl_mvm *mvm = inode->i_private;
2304 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2305 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2306
2307 mvm->d3_test_active = false;
2308
2309 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2310
2311 rtnl_lock();
2312 __iwl_mvm_resume(mvm, true);
2313 rtnl_unlock();
2314
2315 iwl_mvm_resume_tcm(mvm);
2316
2317 iwl_fw_runtime_resume(&mvm->fwrt);
2318
2319 iwl_abort_notification_waits(&mvm->notif_wait);
2320 if (!unified_image) {
2321 int remaining_time = 10;
2322
2323 ieee80211_restart_hw(mvm->hw);
2324
2325
2326 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2327 remaining_time > 0) {
2328 remaining_time--;
2329 msleep(1000);
2330 }
2331
2332 if (remaining_time == 0)
2333 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2334 }
2335
2336 ieee80211_iterate_active_interfaces_atomic(
2337 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2338 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2339
2340 return 0;
2341}
2342
2343const struct file_operations iwl_dbgfs_d3_test_ops = {
2344 .llseek = no_llseek,
2345 .open = iwl_mvm_d3_test_open,
2346 .read = iwl_mvm_d3_test_read,
2347 .release = iwl_mvm_d3_test_release,
2348};
2349#endif
2350