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68#include <linux/etherdevice.h>
69#include <linux/ip.h>
70#include <linux/fs.h>
71#include <net/cfg80211.h>
72#include <net/ipv6.h>
73#include <net/tcp.h>
74#include <net/addrconf.h>
75#include "iwl-modparams.h"
76#include "fw-api.h"
77#include "mvm.h"
78
79void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
80 struct ieee80211_vif *vif,
81 struct cfg80211_gtk_rekey_data *data)
82{
83 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
84 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
85
86 if (iwlwifi_mod_params.sw_crypto)
87 return;
88
89 mutex_lock(&mvm->mutex);
90
91 memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN);
92 memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN);
93 mvmvif->rekey_data.replay_ctr =
94 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
95 mvmvif->rekey_data.valid = true;
96
97 mutex_unlock(&mvm->mutex);
98}
99
100#if IS_ENABLED(CONFIG_IPV6)
101void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
102 struct ieee80211_vif *vif,
103 struct inet6_dev *idev)
104{
105 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
106 struct inet6_ifaddr *ifa;
107 int idx = 0;
108
109 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
110
111 read_lock_bh(&idev->lock);
112 list_for_each_entry(ifa, &idev->addr_list, if_list) {
113 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
114 if (ifa->flags & IFA_F_TENTATIVE)
115 __set_bit(idx, mvmvif->tentative_addrs);
116 idx++;
117 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
118 break;
119 }
120 read_unlock_bh(&idev->lock);
121
122 mvmvif->num_target_ipv6_addrs = idx;
123}
124#endif
125
126void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
127 struct ieee80211_vif *vif, int idx)
128{
129 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
130
131 mvmvif->tx_key_idx = idx;
132}
133
134static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
135{
136 int i;
137
138 for (i = 0; i < IWL_P1K_SIZE; i++)
139 out[i] = cpu_to_le16(p1k[i]);
140}
141
142static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
143 struct iwl_mvm_key_pn *ptk_pn,
144 struct ieee80211_key_seq *seq,
145 int tid, int queues)
146{
147 const u8 *ret = seq->ccmp.pn;
148 int i;
149
150
151 ieee80211_get_key_rx_seq(key, tid, seq);
152
153
154 for (i = 1; i < queues; i++) {
155 const u8 *tmp = ptk_pn->q[i].pn[tid];
156
157 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
158 ret = tmp;
159 }
160
161 return ret;
162}
163
164struct wowlan_key_data {
165 struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc;
166 struct iwl_wowlan_tkip_params_cmd *tkip;
167 bool error, use_rsc_tsc, use_tkip, configure_keys;
168 int wep_key_idx;
169};
170
171static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
172 struct ieee80211_vif *vif,
173 struct ieee80211_sta *sta,
174 struct ieee80211_key_conf *key,
175 void *_data)
176{
177 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
178 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
179 struct wowlan_key_data *data = _data;
180 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
181 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
182 struct iwl_p1k_cache *rx_p1ks;
183 u8 *rx_mic_key;
184 struct ieee80211_key_seq seq;
185 u32 cur_rx_iv32 = 0;
186 u16 p1k[IWL_P1K_SIZE];
187 int ret, i;
188
189 switch (key->cipher) {
190 case WLAN_CIPHER_SUITE_WEP40:
191 case WLAN_CIPHER_SUITE_WEP104: {
192 struct {
193 struct iwl_mvm_wep_key_cmd wep_key_cmd;
194 struct iwl_mvm_wep_key wep_key;
195 } __packed wkc = {
196 .wep_key_cmd.mac_id_n_color =
197 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
198 mvmvif->color)),
199 .wep_key_cmd.num_keys = 1,
200
201 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
202 .wep_key.key_index = key->keyidx,
203 .wep_key.key_size = key->keylen,
204 };
205
206
207
208
209
210
211 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
212 break;
213
214 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
215 if (key->keyidx == mvmvif->tx_key_idx) {
216
217 wkc.wep_key.key_offset = 0;
218 } else {
219
220 data->wep_key_idx++;
221 wkc.wep_key.key_offset = data->wep_key_idx;
222 }
223
224 if (data->configure_keys) {
225 mutex_lock(&mvm->mutex);
226 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0,
227 sizeof(wkc), &wkc);
228 data->error = ret != 0;
229
230 mvm->ptk_ivlen = key->iv_len;
231 mvm->ptk_icvlen = key->icv_len;
232 mvm->gtk_ivlen = key->iv_len;
233 mvm->gtk_icvlen = key->icv_len;
234 mutex_unlock(&mvm->mutex);
235 }
236
237
238 return;
239 }
240 default:
241 data->error = true;
242 return;
243 case WLAN_CIPHER_SUITE_AES_CMAC:
244
245
246
247
248
249
250
251 return;
252 case WLAN_CIPHER_SUITE_TKIP:
253 if (sta) {
254 u64 pn64;
255
256 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
257 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
258
259 rx_p1ks = data->tkip->rx_uni;
260
261 pn64 = atomic64_read(&key->tx_pn);
262 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
263 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
264
265 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
266 p1k);
267 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
268
269 memcpy(data->tkip->mic_keys.tx,
270 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
271 IWL_MIC_KEY_SIZE);
272
273 rx_mic_key = data->tkip->mic_keys.rx_unicast;
274 } else {
275 tkip_sc =
276 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
277 rx_p1ks = data->tkip->rx_multi;
278 rx_mic_key = data->tkip->mic_keys.rx_mcast;
279 }
280
281
282
283
284
285
286 for (i = 0; i < IWL_NUM_RSC; i++) {
287 ieee80211_get_key_rx_seq(key, i, &seq);
288 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
289 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
290
291 if (seq.tkip.iv32 > cur_rx_iv32)
292 cur_rx_iv32 = seq.tkip.iv32;
293 }
294
295 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
296 cur_rx_iv32, p1k);
297 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
298 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
299 cur_rx_iv32 + 1, p1k);
300 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
301
302 memcpy(rx_mic_key,
303 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
304 IWL_MIC_KEY_SIZE);
305
306 data->use_tkip = true;
307 data->use_rsc_tsc = true;
308 break;
309 case WLAN_CIPHER_SUITE_CCMP:
310 if (sta) {
311 u64 pn64;
312
313 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
314 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
315
316 pn64 = atomic64_read(&key->tx_pn);
317 aes_tx_sc->pn = cpu_to_le64(pn64);
318 } else {
319 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
320 }
321
322
323
324
325
326 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
327 struct iwl_mvm_sta *mvmsta;
328 struct iwl_mvm_key_pn *ptk_pn;
329 const u8 *pn;
330
331 mvmsta = iwl_mvm_sta_from_mac80211(sta);
332 ptk_pn = rcu_dereference_protected(
333 mvmsta->ptk_pn[key->keyidx],
334 lockdep_is_held(&mvm->mutex));
335 if (WARN_ON(!ptk_pn))
336 break;
337
338 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
339 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
340 mvm->trans->num_rx_queues);
341 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
342 ((u64)pn[4] << 8) |
343 ((u64)pn[3] << 16) |
344 ((u64)pn[2] << 24) |
345 ((u64)pn[1] << 32) |
346 ((u64)pn[0] << 40));
347 }
348 } else {
349 for (i = 0; i < IWL_NUM_RSC; i++) {
350 u8 *pn = seq.ccmp.pn;
351
352 ieee80211_get_key_rx_seq(key, i, &seq);
353 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
354 ((u64)pn[4] << 8) |
355 ((u64)pn[3] << 16) |
356 ((u64)pn[2] << 24) |
357 ((u64)pn[1] << 32) |
358 ((u64)pn[0] << 40));
359 }
360 }
361 data->use_rsc_tsc = true;
362 break;
363 }
364
365 if (data->configure_keys) {
366 mutex_lock(&mvm->mutex);
367
368
369
370
371 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
372 mvm->ptk_ivlen = key->iv_len;
373 mvm->ptk_icvlen = key->icv_len;
374 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
375 } else {
376
377
378
379
380
381
382 mvm->gtk_ivlen = key->iv_len;
383 mvm->gtk_icvlen = key->icv_len;
384 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
385 }
386 mutex_unlock(&mvm->mutex);
387 data->error = ret != 0;
388 }
389}
390
391static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
392 struct cfg80211_wowlan *wowlan)
393{
394 struct iwl_wowlan_patterns_cmd *pattern_cmd;
395 struct iwl_host_cmd cmd = {
396 .id = WOWLAN_PATTERNS,
397 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
398 };
399 int i, err;
400
401 if (!wowlan->n_patterns)
402 return 0;
403
404 cmd.len[0] = sizeof(*pattern_cmd) +
405 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern);
406
407 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
408 if (!pattern_cmd)
409 return -ENOMEM;
410
411 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
412
413 for (i = 0; i < wowlan->n_patterns; i++) {
414 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
415
416 memcpy(&pattern_cmd->patterns[i].mask,
417 wowlan->patterns[i].mask, mask_len);
418 memcpy(&pattern_cmd->patterns[i].pattern,
419 wowlan->patterns[i].pattern,
420 wowlan->patterns[i].pattern_len);
421 pattern_cmd->patterns[i].mask_size = mask_len;
422 pattern_cmd->patterns[i].pattern_size =
423 wowlan->patterns[i].pattern_len;
424 }
425
426 cmd.data[0] = pattern_cmd;
427 err = iwl_mvm_send_cmd(mvm, &cmd);
428 kfree(pattern_cmd);
429 return err;
430}
431
432enum iwl_mvm_tcp_packet_type {
433 MVM_TCP_TX_SYN,
434 MVM_TCP_RX_SYNACK,
435 MVM_TCP_TX_DATA,
436 MVM_TCP_RX_ACK,
437 MVM_TCP_RX_WAKE,
438 MVM_TCP_TX_FIN,
439};
440
441static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr)
442{
443 __sum16 check = tcp_v4_check(len, saddr, daddr, 0);
444 return cpu_to_le16(be16_to_cpu((__force __be16)check));
445}
446
447static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif,
448 struct cfg80211_wowlan_tcp *tcp,
449 void *_pkt, u8 *mask,
450 __le16 *pseudo_hdr_csum,
451 enum iwl_mvm_tcp_packet_type ptype)
452{
453 struct {
454 struct ethhdr eth;
455 struct iphdr ip;
456 struct tcphdr tcp;
457 u8 data[];
458 } __packed *pkt = _pkt;
459 u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr);
460 int i;
461
462 pkt->eth.h_proto = cpu_to_be16(ETH_P_IP),
463 pkt->ip.version = 4;
464 pkt->ip.ihl = 5;
465 pkt->ip.protocol = IPPROTO_TCP;
466
467 switch (ptype) {
468 case MVM_TCP_TX_SYN:
469 case MVM_TCP_TX_DATA:
470 case MVM_TCP_TX_FIN:
471 memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN);
472 memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN);
473 pkt->ip.ttl = 128;
474 pkt->ip.saddr = tcp->src;
475 pkt->ip.daddr = tcp->dst;
476 pkt->tcp.source = cpu_to_be16(tcp->src_port);
477 pkt->tcp.dest = cpu_to_be16(tcp->dst_port);
478
479 pkt->tcp.doff = sizeof(struct tcphdr) / 4;
480 pkt->tcp.window = cpu_to_be16(65000);
481 break;
482 case MVM_TCP_RX_SYNACK:
483 case MVM_TCP_RX_ACK:
484 case MVM_TCP_RX_WAKE:
485 memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN);
486 memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN);
487 pkt->ip.saddr = tcp->dst;
488 pkt->ip.daddr = tcp->src;
489 pkt->tcp.source = cpu_to_be16(tcp->dst_port);
490 pkt->tcp.dest = cpu_to_be16(tcp->src_port);
491 break;
492 default:
493 WARN_ON(1);
494 return;
495 }
496
497 switch (ptype) {
498 case MVM_TCP_TX_SYN:
499
500 memset(pkt->data, 0x01, 8);
501 ip_tot_len += 8;
502 pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4;
503 pkt->tcp.syn = 1;
504 break;
505 case MVM_TCP_TX_DATA:
506 ip_tot_len += tcp->payload_len;
507 memcpy(pkt->data, tcp->payload, tcp->payload_len);
508 pkt->tcp.psh = 1;
509 pkt->tcp.ack = 1;
510 break;
511 case MVM_TCP_TX_FIN:
512 pkt->tcp.fin = 1;
513 pkt->tcp.ack = 1;
514 break;
515 case MVM_TCP_RX_SYNACK:
516 pkt->tcp.syn = 1;
517 pkt->tcp.ack = 1;
518 break;
519 case MVM_TCP_RX_ACK:
520 pkt->tcp.ack = 1;
521 break;
522 case MVM_TCP_RX_WAKE:
523 ip_tot_len += tcp->wake_len;
524 pkt->tcp.psh = 1;
525 pkt->tcp.ack = 1;
526 memcpy(pkt->data, tcp->wake_data, tcp->wake_len);
527 break;
528 }
529
530 switch (ptype) {
531 case MVM_TCP_TX_SYN:
532 case MVM_TCP_TX_DATA:
533 case MVM_TCP_TX_FIN:
534 pkt->ip.tot_len = cpu_to_be16(ip_tot_len);
535 pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl);
536 break;
537 case MVM_TCP_RX_WAKE:
538 for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) {
539 u8 tmp = tcp->wake_mask[i];
540 mask[i + 6] |= tmp << 6;
541 if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8))
542 mask[i + 7] = tmp >> 2;
543 }
544
545 case MVM_TCP_RX_SYNACK:
546 case MVM_TCP_RX_ACK:
547 mask[0] = 0xff;
548
549
550
551
552 mask[1] = 0x7f;
553 mask[2] = 0x80;
554 mask[3] = 0xfc;
555 mask[4] = 0x3f;
556 mask[5] = 0x80;
557
558 break;
559 };
560
561 *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr),
562 pkt->ip.saddr, pkt->ip.daddr);
563}
564
565static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
566 struct ieee80211_vif *vif,
567 struct cfg80211_wowlan_tcp *tcp)
568{
569 struct iwl_wowlan_remote_wake_config *cfg;
570 struct iwl_host_cmd cmd = {
571 .id = REMOTE_WAKE_CONFIG_CMD,
572 .len = { sizeof(*cfg), },
573 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
574 };
575 int ret;
576
577 if (!tcp)
578 return 0;
579
580 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
581 if (!cfg)
582 return -ENOMEM;
583 cmd.data[0] = cfg;
584
585 cfg->max_syn_retries = 10;
586 cfg->max_data_retries = 10;
587 cfg->tcp_syn_ack_timeout = 1;
588 cfg->tcp_ack_timeout = 1;
589
590
591 iwl_mvm_build_tcp_packet(
592 vif, tcp, cfg->syn_tx.data, NULL,
593 &cfg->syn_tx.info.tcp_pseudo_header_checksum,
594 MVM_TCP_TX_SYN);
595 cfg->syn_tx.info.tcp_payload_length = 0;
596
597
598 iwl_mvm_build_tcp_packet(
599 vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask,
600 &cfg->synack_rx.info.tcp_pseudo_header_checksum,
601 MVM_TCP_RX_SYNACK);
602 cfg->synack_rx.info.tcp_payload_length = 0;
603
604
605 iwl_mvm_build_tcp_packet(
606 vif, tcp, cfg->keepalive_tx.data, NULL,
607 &cfg->keepalive_tx.info.tcp_pseudo_header_checksum,
608 MVM_TCP_TX_DATA);
609 cfg->keepalive_tx.info.tcp_payload_length =
610 cpu_to_le16(tcp->payload_len);
611 cfg->sequence_number_offset = tcp->payload_seq.offset;
612
613 cfg->sequence_number_length = tcp->payload_seq.len;
614 cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start);
615 cfg->keepalive_interval = cpu_to_le16(tcp->data_interval);
616 if (tcp->payload_tok.len) {
617 cfg->token_offset = tcp->payload_tok.offset;
618 cfg->token_length = tcp->payload_tok.len;
619 cfg->num_tokens =
620 cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len);
621 memcpy(cfg->tokens, tcp->payload_tok.token_stream,
622 tcp->tokens_size);
623 } else {
624
625 cfg->num_tokens = cpu_to_le16(65535);
626 }
627
628
629 iwl_mvm_build_tcp_packet(
630 vif, tcp, cfg->keepalive_ack_rx.data,
631 cfg->keepalive_ack_rx.rx_mask,
632 &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum,
633 MVM_TCP_RX_ACK);
634 cfg->keepalive_ack_rx.info.tcp_payload_length = 0;
635
636
637 iwl_mvm_build_tcp_packet(
638 vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask,
639 &cfg->wake_rx.info.tcp_pseudo_header_checksum,
640 MVM_TCP_RX_WAKE);
641 cfg->wake_rx.info.tcp_payload_length =
642 cpu_to_le16(tcp->wake_len);
643
644
645 iwl_mvm_build_tcp_packet(
646 vif, tcp, cfg->fin_tx.data, NULL,
647 &cfg->fin_tx.info.tcp_pseudo_header_checksum,
648 MVM_TCP_TX_FIN);
649 cfg->fin_tx.info.tcp_payload_length = 0;
650
651 ret = iwl_mvm_send_cmd(mvm, &cmd);
652 kfree(cfg);
653
654 return ret;
655}
656
657static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
658 struct ieee80211_sta *ap_sta)
659{
660 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
661 struct ieee80211_chanctx_conf *ctx;
662 u8 chains_static, chains_dynamic;
663 struct cfg80211_chan_def chandef;
664 int ret, i;
665 struct iwl_binding_cmd binding_cmd = {};
666 struct iwl_time_quota_cmd quota_cmd = {};
667 u32 status;
668
669
670 if (WARN_ON(!mvmvif->phy_ctxt))
671 return -EINVAL;
672
673 rcu_read_lock();
674 ctx = rcu_dereference(vif->chanctx_conf);
675 if (WARN_ON(!ctx)) {
676 rcu_read_unlock();
677 return -EINVAL;
678 }
679 chandef = ctx->def;
680 chains_static = ctx->rx_chains_static;
681 chains_dynamic = ctx->rx_chains_dynamic;
682 rcu_read_unlock();
683
684 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
685 chains_static, chains_dynamic);
686 if (ret)
687 return ret;
688
689
690 mvmvif->uploaded = false;
691
692 if (WARN_ON(!vif->bss_conf.assoc))
693 return -EINVAL;
694
695 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
696 if (ret)
697 return ret;
698
699
700 binding_cmd.id_and_color =
701 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
702 mvmvif->phy_ctxt->color));
703 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
704 binding_cmd.phy =
705 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
706 mvmvif->phy_ctxt->color));
707 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
708 mvmvif->color));
709 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
710 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
711
712 status = 0;
713 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
714 sizeof(binding_cmd), &binding_cmd,
715 &status);
716 if (ret) {
717 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
718 return ret;
719 }
720
721 if (status) {
722 IWL_ERR(mvm, "Binding command failed: %u\n", status);
723 return -EIO;
724 }
725
726 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
727 if (ret)
728 return ret;
729 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
730
731 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
732 if (ret)
733 return ret;
734
735
736 quota_cmd.quotas[0].id_and_color =
737 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
738 mvmvif->phy_ctxt->color));
739 quota_cmd.quotas[0].quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
740 quota_cmd.quotas[0].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
741
742 for (i = 1; i < MAX_BINDINGS; i++)
743 quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID);
744
745 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
746 sizeof(quota_cmd), "a_cmd);
747 if (ret)
748 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
749
750 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
751 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
752
753 return 0;
754}
755
756static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
757 struct ieee80211_vif *vif)
758{
759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
760 struct iwl_nonqos_seq_query_cmd query_cmd = {
761 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
762 .mac_id_n_color =
763 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
764 mvmvif->color)),
765 };
766 struct iwl_host_cmd cmd = {
767 .id = NON_QOS_TX_COUNTER_CMD,
768 .flags = CMD_WANT_SKB,
769 };
770 int err;
771 u32 size;
772
773 cmd.data[0] = &query_cmd;
774 cmd.len[0] = sizeof(query_cmd);
775
776 err = iwl_mvm_send_cmd(mvm, &cmd);
777 if (err)
778 return err;
779
780 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
781 if (size < sizeof(__le16)) {
782 err = -EINVAL;
783 } else {
784 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
785
786 err = (u16) (err - 0x10);
787 }
788
789 iwl_free_resp(&cmd);
790 return err;
791}
792
793void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
794{
795 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
796 struct iwl_nonqos_seq_query_cmd query_cmd = {
797 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
798 .mac_id_n_color =
799 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
800 mvmvif->color)),
801 .value = cpu_to_le16(mvmvif->seqno),
802 };
803
804
805 if (!mvmvif->seqno_valid)
806 return;
807
808 mvmvif->seqno_valid = false;
809
810 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
811 sizeof(query_cmd), &query_cmd))
812 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
813}
814
815static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
816{
817 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
818
819 iwl_mvm_stop_device(mvm);
820
821
822
823
824
825
826
827
828
829
830 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
831
832
833 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
834
835 mvm->ptk_ivlen = 0;
836 mvm->ptk_icvlen = 0;
837 mvm->ptk_ivlen = 0;
838 mvm->ptk_icvlen = 0;
839
840 return iwl_mvm_load_d3_fw(mvm);
841}
842
843static int
844iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
845 struct cfg80211_wowlan *wowlan,
846 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
847 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
848 struct ieee80211_sta *ap_sta)
849{
850 int ret;
851 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
852
853
854
855 wowlan_config_cmd->is_11n_connection =
856 ap_sta->ht_cap.ht_supported;
857 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
858 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
859
860
861 ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
862 if (ret < 0)
863 return ret;
864
865 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
866
867 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
868
869 if (wowlan->disconnect)
870 wowlan_config_cmd->wakeup_filter |=
871 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
872 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
873 if (wowlan->magic_pkt)
874 wowlan_config_cmd->wakeup_filter |=
875 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
876 if (wowlan->gtk_rekey_failure)
877 wowlan_config_cmd->wakeup_filter |=
878 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
879 if (wowlan->eap_identity_req)
880 wowlan_config_cmd->wakeup_filter |=
881 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
882 if (wowlan->four_way_handshake)
883 wowlan_config_cmd->wakeup_filter |=
884 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
885 if (wowlan->n_patterns)
886 wowlan_config_cmd->wakeup_filter |=
887 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
888
889 if (wowlan->rfkill_release)
890 wowlan_config_cmd->wakeup_filter |=
891 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
892
893 if (wowlan->tcp) {
894
895
896
897
898 wowlan_config_cmd->wakeup_filter |=
899 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
900 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
901 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
902 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
903 }
904
905 return 0;
906}
907
908static void
909iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm *mvm,
910 struct ieee80211_vif *vif,
911 void (*iter)(struct ieee80211_hw *hw,
912 struct ieee80211_vif *vif,
913 struct ieee80211_sta *sta,
914 struct ieee80211_key_conf *key,
915 void *data),
916 void *data)
917{
918 struct ieee80211_sta *ap_sta;
919
920 rcu_read_lock();
921
922 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id]);
923 if (IS_ERR_OR_NULL(ap_sta))
924 goto out;
925
926 ieee80211_iter_keys_rcu(mvm->hw, vif, iter, data);
927out:
928 rcu_read_unlock();
929}
930
931int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
932 struct ieee80211_vif *vif,
933 bool d0i3,
934 u32 cmd_flags)
935{
936 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
937 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
938 struct wowlan_key_data key_data = {
939 .configure_keys = !d0i3,
940 .use_rsc_tsc = false,
941 .tkip = &tkip_cmd,
942 .use_tkip = false,
943 };
944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
945 int ret;
946
947 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
948 if (!key_data.rsc_tsc)
949 return -ENOMEM;
950
951
952
953
954
955
956
957
958 if (!d0i3) {
959
960
961
962
963
964
965
966 ieee80211_iter_keys(mvm->hw, vif,
967 iwl_mvm_wowlan_program_keys,
968 &key_data);
969 } else {
970 iwl_mvm_iter_d0i3_ap_keys(mvm, vif,
971 iwl_mvm_wowlan_program_keys,
972 &key_data);
973 }
974
975 if (key_data.error) {
976 ret = -EIO;
977 goto out;
978 }
979
980 if (key_data.use_rsc_tsc) {
981 ret = iwl_mvm_send_cmd_pdu(mvm,
982 WOWLAN_TSC_RSC_PARAM, cmd_flags,
983 sizeof(*key_data.rsc_tsc),
984 key_data.rsc_tsc);
985 if (ret)
986 goto out;
987 }
988
989 if (key_data.use_tkip) {
990 ret = iwl_mvm_send_cmd_pdu(mvm,
991 WOWLAN_TKIP_PARAM,
992 cmd_flags, sizeof(tkip_cmd),
993 &tkip_cmd);
994 if (ret)
995 goto out;
996 }
997
998
999 if (mvmvif->rekey_data.valid && !d0i3) {
1000 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
1001 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1002 NL80211_KCK_LEN);
1003 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
1004 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1005 NL80211_KEK_LEN);
1006 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
1007 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1008
1009 ret = iwl_mvm_send_cmd_pdu(mvm,
1010 WOWLAN_KEK_KCK_MATERIAL, cmd_flags,
1011 sizeof(kek_kck_cmd),
1012 &kek_kck_cmd);
1013 if (ret)
1014 goto out;
1015 }
1016 ret = 0;
1017out:
1018 kfree(key_data.rsc_tsc);
1019 return ret;
1020}
1021
1022static int
1023iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1024 struct cfg80211_wowlan *wowlan,
1025 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1026 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1027 struct ieee80211_sta *ap_sta)
1028{
1029 int ret;
1030 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1031 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1032
1033 if (!unified_image) {
1034 ret = iwl_mvm_switch_to_d3(mvm);
1035 if (ret)
1036 return ret;
1037
1038 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1039 if (ret)
1040 return ret;
1041 }
1042
1043 if (!iwlwifi_mod_params.sw_crypto) {
1044
1045
1046
1047
1048
1049 mutex_unlock(&mvm->mutex);
1050 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, false,
1051 CMD_ASYNC);
1052 mutex_lock(&mvm->mutex);
1053 if (ret)
1054 return ret;
1055 }
1056
1057 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1058 sizeof(*wowlan_config_cmd),
1059 wowlan_config_cmd);
1060 if (ret)
1061 return ret;
1062
1063 ret = iwl_mvm_send_patterns(mvm, wowlan);
1064 if (ret)
1065 return ret;
1066
1067 ret = iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
1068 if (ret)
1069 return ret;
1070
1071 ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp);
1072 return ret;
1073}
1074
1075static int
1076iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1077 struct cfg80211_wowlan *wowlan,
1078 struct cfg80211_sched_scan_request *nd_config,
1079 struct ieee80211_vif *vif)
1080{
1081 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1082 int ret;
1083 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1084 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1085
1086 if (!unified_image) {
1087 ret = iwl_mvm_switch_to_d3(mvm);
1088 if (ret)
1089 return ret;
1090 } else {
1091
1092
1093
1094
1095
1096 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1097 if (ret)
1098 return ret;
1099 }
1100
1101
1102 if (wowlan->rfkill_release)
1103 wowlan_config_cmd.wakeup_filter |=
1104 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
1105
1106 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1107 sizeof(wowlan_config_cmd),
1108 &wowlan_config_cmd);
1109 if (ret)
1110 return ret;
1111
1112 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1113 IWL_MVM_SCAN_NETDETECT);
1114 if (ret)
1115 return ret;
1116
1117 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1118 return -EBUSY;
1119
1120
1121 if (nd_config->n_match_sets) {
1122 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1123 sizeof(*nd_config->match_sets) *
1124 nd_config->n_match_sets,
1125 GFP_KERNEL);
1126 if (mvm->nd_match_sets)
1127 mvm->n_nd_match_sets = nd_config->n_match_sets;
1128 }
1129
1130
1131 mvm->nd_channels = kmemdup(nd_config->channels,
1132 sizeof(*nd_config->channels) *
1133 nd_config->n_channels,
1134 GFP_KERNEL);
1135 if (mvm->nd_channels)
1136 mvm->n_nd_channels = nd_config->n_channels;
1137
1138 return 0;
1139}
1140
1141static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1142{
1143 kfree(mvm->nd_match_sets);
1144 mvm->nd_match_sets = NULL;
1145 mvm->n_nd_match_sets = 0;
1146 kfree(mvm->nd_channels);
1147 mvm->nd_channels = NULL;
1148 mvm->n_nd_channels = 0;
1149}
1150
1151static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1152 struct cfg80211_wowlan *wowlan,
1153 bool test)
1154{
1155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1156 struct ieee80211_vif *vif = NULL;
1157 struct iwl_mvm_vif *mvmvif = NULL;
1158 struct ieee80211_sta *ap_sta = NULL;
1159 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1160
1161
1162
1163
1164
1165 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1166 };
1167 struct iwl_host_cmd d3_cfg_cmd = {
1168 .id = D3_CONFIG_CMD,
1169 .flags = CMD_WANT_SKB,
1170 .data[0] = &d3_cfg_cmd_data,
1171 .len[0] = sizeof(d3_cfg_cmd_data),
1172 };
1173 int ret;
1174 int len __maybe_unused;
1175 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1176 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1177
1178 if (!wowlan) {
1179
1180
1181
1182
1183 WARN_ON(!test);
1184 return -EINVAL;
1185 }
1186
1187 mutex_lock(&mvm->mutex);
1188
1189 vif = iwl_mvm_get_bss_vif(mvm);
1190 if (IS_ERR_OR_NULL(vif)) {
1191 ret = 1;
1192 goto out_noreset;
1193 }
1194
1195 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1196
1197 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) {
1198
1199 if (!wowlan->nd_config) {
1200 ret = 1;
1201 goto out_noreset;
1202 }
1203
1204 ret = iwl_mvm_netdetect_config(
1205 mvm, wowlan, wowlan->nd_config, vif);
1206 if (ret)
1207 goto out;
1208
1209 mvm->net_detect = true;
1210 } else {
1211 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1212
1213 ap_sta = rcu_dereference_protected(
1214 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1215 lockdep_is_held(&mvm->mutex));
1216 if (IS_ERR_OR_NULL(ap_sta)) {
1217 ret = -EINVAL;
1218 goto out_noreset;
1219 }
1220
1221 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1222 vif, mvmvif, ap_sta);
1223 if (ret)
1224 goto out_noreset;
1225 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1226 vif, mvmvif, ap_sta);
1227 if (ret)
1228 goto out;
1229
1230 mvm->net_detect = false;
1231 }
1232
1233 ret = iwl_mvm_power_update_device(mvm);
1234 if (ret)
1235 goto out;
1236
1237 ret = iwl_mvm_power_update_mac(mvm);
1238 if (ret)
1239 goto out;
1240
1241#ifdef CONFIG_IWLWIFI_DEBUGFS
1242 if (mvm->d3_wake_sysassert)
1243 d3_cfg_cmd_data.wakeup_flags |=
1244 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1245#endif
1246
1247
1248 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1249 if (ret)
1250 goto out;
1251#ifdef CONFIG_IWLWIFI_DEBUGFS
1252 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1253 if (len >= sizeof(u32)) {
1254 mvm->d3_test_pme_ptr =
1255 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1256 }
1257#endif
1258 iwl_free_resp(&d3_cfg_cmd);
1259
1260 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1261
1262 iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1263 out:
1264 if (ret < 0) {
1265 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1266 if (mvm->restart_fw > 0) {
1267 mvm->restart_fw--;
1268 ieee80211_restart_hw(mvm->hw);
1269 }
1270 iwl_mvm_free_nd(mvm);
1271 }
1272 out_noreset:
1273 mutex_unlock(&mvm->mutex);
1274
1275 return ret;
1276}
1277
1278static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm)
1279{
1280 struct iwl_notification_wait wait_d3;
1281 static const u16 d3_notif[] = { D3_CONFIG_CMD };
1282 int ret;
1283
1284 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3,
1285 d3_notif, ARRAY_SIZE(d3_notif),
1286 NULL, NULL);
1287
1288 ret = iwl_mvm_enter_d0i3(mvm->hw->priv);
1289 if (ret)
1290 goto remove_notif;
1291
1292 ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ);
1293 WARN_ON_ONCE(ret);
1294 return ret;
1295
1296remove_notif:
1297 iwl_remove_notification(&mvm->notif_wait, &wait_d3);
1298 return ret;
1299}
1300
1301int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1302{
1303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1304 struct iwl_trans *trans = mvm->trans;
1305 int ret;
1306
1307
1308 flush_work(&mvm->d0i3_exit_work);
1309
1310 ret = iwl_trans_suspend(trans);
1311 if (ret)
1312 return ret;
1313
1314 if (wowlan->any) {
1315 trans->system_pm_mode = IWL_PLAT_PM_MODE_D0I3;
1316
1317 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
1318 ret = iwl_mvm_enter_d0i3_sync(mvm);
1319
1320 if (ret)
1321 return ret;
1322 }
1323
1324 mutex_lock(&mvm->d0i3_suspend_mutex);
1325 __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1326 mutex_unlock(&mvm->d0i3_suspend_mutex);
1327
1328 iwl_trans_d3_suspend(trans, false, false);
1329
1330 return 0;
1331 }
1332
1333 trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1334
1335 return __iwl_mvm_suspend(hw, wowlan, false);
1336}
1337
1338
1339struct iwl_wowlan_status_data {
1340 u16 pattern_number;
1341 u16 qos_seq_ctr[8];
1342 u32 wakeup_reasons;
1343 u32 wake_packet_length;
1344 u32 wake_packet_bufsize;
1345 const u8 *wake_packet;
1346};
1347
1348static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1349 struct ieee80211_vif *vif,
1350 struct iwl_wowlan_status_data *status)
1351{
1352 struct sk_buff *pkt = NULL;
1353 struct cfg80211_wowlan_wakeup wakeup = {
1354 .pattern_idx = -1,
1355 };
1356 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1357 u32 reasons = status->wakeup_reasons;
1358
1359 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1360 wakeup_report = NULL;
1361 goto report;
1362 }
1363
1364 pm_wakeup_event(mvm->dev, 0);
1365
1366 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1367 wakeup.magic_pkt = true;
1368
1369 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1370 wakeup.pattern_idx =
1371 status->pattern_number;
1372
1373 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1374 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1375 wakeup.disconnect = true;
1376
1377 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1378 wakeup.gtk_rekey_failure = true;
1379
1380 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1381 wakeup.rfkill_release = true;
1382
1383 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1384 wakeup.eap_identity_req = true;
1385
1386 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1387 wakeup.four_way_handshake = true;
1388
1389 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1390 wakeup.tcp_connlost = true;
1391
1392 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1393 wakeup.tcp_nomoretokens = true;
1394
1395 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1396 wakeup.tcp_match = true;
1397
1398 if (status->wake_packet_bufsize) {
1399 int pktsize = status->wake_packet_bufsize;
1400 int pktlen = status->wake_packet_length;
1401 const u8 *pktdata = status->wake_packet;
1402 struct ieee80211_hdr *hdr = (void *)pktdata;
1403 int truncated = pktlen - pktsize;
1404
1405
1406 if (WARN_ON_ONCE(truncated < 0))
1407 truncated = 0;
1408
1409 if (ieee80211_is_data(hdr->frame_control)) {
1410 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1411 int ivlen = 0, icvlen = 4;
1412
1413 pkt = alloc_skb(pktsize, GFP_KERNEL);
1414 if (!pkt)
1415 goto report;
1416
1417 memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen);
1418 pktdata += hdrlen;
1419 pktsize -= hdrlen;
1420
1421 if (ieee80211_has_protected(hdr->frame_control)) {
1422
1423
1424
1425
1426
1427
1428 if (is_multicast_ether_addr(hdr->addr1)) {
1429 ivlen = mvm->gtk_ivlen;
1430 icvlen += mvm->gtk_icvlen;
1431 } else {
1432 ivlen = mvm->ptk_ivlen;
1433 icvlen += mvm->ptk_icvlen;
1434 }
1435 }
1436
1437
1438 if (truncated >= icvlen) {
1439 icvlen = 0;
1440 truncated -= icvlen;
1441 } else {
1442 icvlen -= truncated;
1443 truncated = 0;
1444 }
1445
1446 pktsize -= ivlen + icvlen;
1447 pktdata += ivlen;
1448
1449 memcpy(skb_put(pkt, pktsize), pktdata, pktsize);
1450
1451 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1452 goto report;
1453 wakeup.packet = pkt->data;
1454 wakeup.packet_present_len = pkt->len;
1455 wakeup.packet_len = pkt->len - truncated;
1456 wakeup.packet_80211 = false;
1457 } else {
1458 int fcslen = 4;
1459
1460 if (truncated >= 4) {
1461 truncated -= 4;
1462 fcslen = 0;
1463 } else {
1464 fcslen -= truncated;
1465 truncated = 0;
1466 }
1467 pktsize -= fcslen;
1468 wakeup.packet = status->wake_packet;
1469 wakeup.packet_present_len = pktsize;
1470 wakeup.packet_len = pktlen - truncated;
1471 wakeup.packet_80211 = true;
1472 }
1473 }
1474
1475 report:
1476 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1477 kfree_skb(pkt);
1478}
1479
1480static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1481 struct ieee80211_key_seq *seq)
1482{
1483 u64 pn;
1484
1485 pn = le64_to_cpu(sc->pn);
1486 seq->ccmp.pn[0] = pn >> 40;
1487 seq->ccmp.pn[1] = pn >> 32;
1488 seq->ccmp.pn[2] = pn >> 24;
1489 seq->ccmp.pn[3] = pn >> 16;
1490 seq->ccmp.pn[4] = pn >> 8;
1491 seq->ccmp.pn[5] = pn;
1492}
1493
1494static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1495 struct ieee80211_key_seq *seq)
1496{
1497 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1498 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1499}
1500
1501static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs,
1502 struct ieee80211_sta *sta,
1503 struct ieee80211_key_conf *key)
1504{
1505 int tid;
1506
1507 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1508
1509 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
1510 struct iwl_mvm_sta *mvmsta;
1511 struct iwl_mvm_key_pn *ptk_pn;
1512
1513 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1514
1515 ptk_pn = rcu_dereference_protected(mvmsta->ptk_pn[key->keyidx],
1516 lockdep_is_held(&mvm->mutex));
1517 if (WARN_ON(!ptk_pn))
1518 return;
1519
1520 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1521 struct ieee80211_key_seq seq = {};
1522 int i;
1523
1524 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1525 ieee80211_set_key_rx_seq(key, tid, &seq);
1526 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1527 memcpy(ptk_pn->q[i].pn[tid],
1528 seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1529 }
1530 } else {
1531 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1532 struct ieee80211_key_seq seq = {};
1533
1534 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1535 ieee80211_set_key_rx_seq(key, tid, &seq);
1536 }
1537 }
1538}
1539
1540static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1541 struct ieee80211_key_conf *key)
1542{
1543 int tid;
1544
1545 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1546
1547 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1548 struct ieee80211_key_seq seq = {};
1549
1550 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1551 ieee80211_set_key_rx_seq(key, tid, &seq);
1552 }
1553}
1554
1555static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
1556 struct ieee80211_key_conf *key,
1557 struct iwl_wowlan_status *status)
1558{
1559 union iwl_all_tsc_rsc *rsc = &status->gtk.rsc.all_tsc_rsc;
1560
1561 switch (key->cipher) {
1562 case WLAN_CIPHER_SUITE_CCMP:
1563 iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key);
1564 break;
1565 case WLAN_CIPHER_SUITE_TKIP:
1566 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1567 break;
1568 default:
1569 WARN_ON(1);
1570 }
1571}
1572
1573struct iwl_mvm_d3_gtk_iter_data {
1574 struct iwl_mvm *mvm;
1575 struct iwl_wowlan_status *status;
1576 void *last_gtk;
1577 u32 cipher;
1578 bool find_phase, unhandled_cipher;
1579 int num_keys;
1580};
1581
1582static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1583 struct ieee80211_vif *vif,
1584 struct ieee80211_sta *sta,
1585 struct ieee80211_key_conf *key,
1586 void *_data)
1587{
1588 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1589
1590 if (data->unhandled_cipher)
1591 return;
1592
1593 switch (key->cipher) {
1594 case WLAN_CIPHER_SUITE_WEP40:
1595 case WLAN_CIPHER_SUITE_WEP104:
1596
1597 return;
1598 case WLAN_CIPHER_SUITE_CCMP:
1599 case WLAN_CIPHER_SUITE_TKIP:
1600
1601 break;
1602 default:
1603
1604 data->unhandled_cipher = true;
1605 return;
1606 }
1607
1608 data->num_keys++;
1609
1610
1611
1612
1613
1614 if (sta) {
1615 struct ieee80211_key_seq seq = {};
1616 union iwl_all_tsc_rsc *sc = &data->status->gtk.rsc.all_tsc_rsc;
1617
1618 if (data->find_phase)
1619 return;
1620
1621 switch (key->cipher) {
1622 case WLAN_CIPHER_SUITE_CCMP:
1623 iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
1624 sta, key);
1625 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
1626 break;
1627 case WLAN_CIPHER_SUITE_TKIP:
1628 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1629 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1630 atomic64_set(&key->tx_pn,
1631 (u64)seq.tkip.iv16 |
1632 ((u64)seq.tkip.iv32 << 16));
1633 break;
1634 }
1635
1636
1637 return;
1638 }
1639
1640 if (data->find_phase) {
1641 data->last_gtk = key;
1642 data->cipher = key->cipher;
1643 return;
1644 }
1645
1646 if (data->status->num_of_gtk_rekeys)
1647 ieee80211_remove_key(key);
1648 else if (data->last_gtk == key)
1649 iwl_mvm_set_key_rx_seq(data->mvm, key, data->status);
1650}
1651
1652static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1653 struct ieee80211_vif *vif,
1654 struct iwl_wowlan_status *status)
1655{
1656 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1657 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1658 .mvm = mvm,
1659 .status = status,
1660 };
1661 u32 disconnection_reasons =
1662 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1663 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1664
1665 if (!status || !vif->bss_conf.bssid)
1666 return false;
1667
1668 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1669 return false;
1670
1671
1672 gtkdata.find_phase = true;
1673 ieee80211_iter_keys(mvm->hw, vif,
1674 iwl_mvm_d3_update_keys, >kdata);
1675
1676 if (gtkdata.unhandled_cipher)
1677 return false;
1678 if (!gtkdata.num_keys)
1679 goto out;
1680 if (!gtkdata.last_gtk)
1681 return false;
1682
1683
1684
1685
1686
1687 gtkdata.find_phase = false;
1688 ieee80211_iter_keys(mvm->hw, vif,
1689 iwl_mvm_d3_update_keys, >kdata);
1690
1691 if (status->num_of_gtk_rekeys) {
1692 struct ieee80211_key_conf *key;
1693 struct {
1694 struct ieee80211_key_conf conf;
1695 u8 key[32];
1696 } conf = {
1697 .conf.cipher = gtkdata.cipher,
1698 .conf.keyidx = status->gtk.key_index,
1699 };
1700
1701 switch (gtkdata.cipher) {
1702 case WLAN_CIPHER_SUITE_CCMP:
1703 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1704 memcpy(conf.conf.key, status->gtk.decrypt_key,
1705 WLAN_KEY_LEN_CCMP);
1706 break;
1707 case WLAN_CIPHER_SUITE_TKIP:
1708 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1709 memcpy(conf.conf.key, status->gtk.decrypt_key, 16);
1710
1711 memcpy(conf.conf.key +
1712 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1713 status->gtk.tkip_mic_key, 8);
1714 break;
1715 }
1716
1717 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1718 if (IS_ERR(key))
1719 return false;
1720 iwl_mvm_set_key_rx_seq(mvm, key, status);
1721 }
1722
1723 if (status->num_of_gtk_rekeys) {
1724 __be64 replay_ctr =
1725 cpu_to_be64(le64_to_cpu(status->replay_ctr));
1726 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1727 (void *)&replay_ctr, GFP_KERNEL);
1728 }
1729
1730out:
1731 mvmvif->seqno_valid = true;
1732
1733 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1734
1735 return true;
1736}
1737
1738static struct iwl_wowlan_status *
1739iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1740{
1741 u32 base = mvm->error_event_table;
1742 struct error_table_start {
1743
1744 u32 valid;
1745 u32 error_id;
1746 } err_info;
1747 struct iwl_host_cmd cmd = {
1748 .id = WOWLAN_GET_STATUSES,
1749 .flags = CMD_WANT_SKB,
1750 };
1751 struct iwl_wowlan_status *status, *fw_status;
1752 int ret, len, status_size;
1753
1754 iwl_trans_read_mem_bytes(mvm->trans, base,
1755 &err_info, sizeof(err_info));
1756
1757 if (err_info.valid) {
1758 IWL_INFO(mvm, "error table is valid (%d) with error (%d)\n",
1759 err_info.valid, err_info.error_id);
1760 if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
1761 struct cfg80211_wowlan_wakeup wakeup = {
1762 .rfkill_release = true,
1763 };
1764 ieee80211_report_wowlan_wakeup(vif, &wakeup,
1765 GFP_KERNEL);
1766 }
1767 return ERR_PTR(-EIO);
1768 }
1769
1770
1771 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL);
1772 if (ret)
1773 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1774
1775 ret = iwl_mvm_send_cmd(mvm, &cmd);
1776 if (ret) {
1777 IWL_ERR(mvm, "failed to query status (%d)\n", ret);
1778 return ERR_PTR(ret);
1779 }
1780
1781
1782 if (!cmd.resp_pkt) {
1783 fw_status = ERR_PTR(-ERFKILL);
1784 goto out_free_resp;
1785 }
1786
1787 status_size = sizeof(*fw_status);
1788
1789 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1790 if (len < status_size) {
1791 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1792 fw_status = ERR_PTR(-EIO);
1793 goto out_free_resp;
1794 }
1795
1796 status = (void *)cmd.resp_pkt->data;
1797 if (len != (status_size +
1798 ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4))) {
1799 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1800 fw_status = ERR_PTR(-EIO);
1801 goto out_free_resp;
1802 }
1803
1804 fw_status = kmemdup(status, len, GFP_KERNEL);
1805
1806out_free_resp:
1807 iwl_free_resp(&cmd);
1808 return fw_status;
1809}
1810
1811
1812static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1813 struct ieee80211_vif *vif)
1814{
1815 struct iwl_wowlan_status_data status;
1816 struct iwl_wowlan_status *fw_status;
1817 int i;
1818 bool keep;
1819 struct iwl_mvm_sta *mvm_ap_sta;
1820
1821 fw_status = iwl_mvm_get_wakeup_status(mvm, vif);
1822 if (IS_ERR_OR_NULL(fw_status))
1823 goto out_unlock;
1824
1825 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
1826 for (i = 0; i < 8; i++)
1827 status.qos_seq_ctr[i] =
1828 le16_to_cpu(fw_status->qos_seq_ctr[i]);
1829 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
1830 status.wake_packet_length =
1831 le32_to_cpu(fw_status->wake_packet_length);
1832 status.wake_packet_bufsize =
1833 le32_to_cpu(fw_status->wake_packet_bufsize);
1834 status.wake_packet = fw_status->wake_packet;
1835
1836
1837 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
1838 if (!mvm_ap_sta)
1839 goto out_free;
1840
1841 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1842 u16 seq = status.qos_seq_ctr[i];
1843
1844 seq += 0x10;
1845 mvm_ap_sta->tid_data[i].seq_number = seq;
1846 }
1847
1848
1849 mutex_unlock(&mvm->mutex);
1850
1851 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
1852
1853 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
1854
1855 kfree(fw_status);
1856 return keep;
1857
1858out_free:
1859 kfree(fw_status);
1860out_unlock:
1861 mutex_unlock(&mvm->mutex);
1862 return false;
1863}
1864
1865void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
1866 struct ieee80211_vif *vif,
1867 struct iwl_wowlan_status *status)
1868{
1869 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1870 .mvm = mvm,
1871 .status = status,
1872 };
1873
1874
1875
1876
1877
1878 if (WARN_ON_ONCE(status->num_of_gtk_rekeys))
1879 return;
1880
1881
1882 gtkdata.find_phase = true;
1883 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
1884
1885 gtkdata.find_phase = false;
1886 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
1887}
1888
1889struct iwl_mvm_nd_query_results {
1890 u32 matched_profiles;
1891 struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
1892};
1893
1894static int
1895iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
1896 struct iwl_mvm_nd_query_results *results)
1897{
1898 struct iwl_scan_offload_profiles_query *query;
1899 struct iwl_host_cmd cmd = {
1900 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
1901 .flags = CMD_WANT_SKB,
1902 };
1903 int ret, len;
1904
1905 ret = iwl_mvm_send_cmd(mvm, &cmd);
1906 if (ret) {
1907 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
1908 return ret;
1909 }
1910
1911
1912 if (!cmd.resp_pkt) {
1913 ret = -ERFKILL;
1914 goto out_free_resp;
1915 }
1916
1917 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1918 if (len < sizeof(*query)) {
1919 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
1920 ret = -EIO;
1921 goto out_free_resp;
1922 }
1923
1924 query = (void *)cmd.resp_pkt->data;
1925
1926 results->matched_profiles = le32_to_cpu(query->matched_profiles);
1927 memcpy(results->matches, query->matches, sizeof(results->matches));
1928
1929#ifdef CONFIG_IWLWIFI_DEBUGFS
1930 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
1931#endif
1932
1933out_free_resp:
1934 iwl_free_resp(&cmd);
1935 return ret;
1936}
1937
1938static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
1939 struct ieee80211_vif *vif)
1940{
1941 struct cfg80211_wowlan_nd_info *net_detect = NULL;
1942 struct cfg80211_wowlan_wakeup wakeup = {
1943 .pattern_idx = -1,
1944 };
1945 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1946 struct iwl_mvm_nd_query_results query;
1947 struct iwl_wowlan_status *fw_status;
1948 unsigned long matched_profiles;
1949 u32 reasons = 0;
1950 int i, j, n_matches, ret;
1951
1952 fw_status = iwl_mvm_get_wakeup_status(mvm, vif);
1953 if (!IS_ERR_OR_NULL(fw_status)) {
1954 reasons = le32_to_cpu(fw_status->wakeup_reasons);
1955 kfree(fw_status);
1956 }
1957
1958 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1959 wakeup.rfkill_release = true;
1960
1961 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
1962 goto out;
1963
1964 ret = iwl_mvm_netdetect_query_results(mvm, &query);
1965 if (ret || !query.matched_profiles) {
1966 wakeup_report = NULL;
1967 goto out;
1968 }
1969
1970 matched_profiles = query.matched_profiles;
1971 if (mvm->n_nd_match_sets) {
1972 n_matches = hweight_long(matched_profiles);
1973 } else {
1974 IWL_ERR(mvm, "no net detect match information available\n");
1975 n_matches = 0;
1976 }
1977
1978 net_detect = kzalloc(sizeof(*net_detect) +
1979 (n_matches * sizeof(net_detect->matches[0])),
1980 GFP_KERNEL);
1981 if (!net_detect || !n_matches)
1982 goto out_report_nd;
1983
1984 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
1985 struct iwl_scan_offload_profile_match *fw_match;
1986 struct cfg80211_wowlan_nd_match *match;
1987 int idx, n_channels = 0;
1988
1989 fw_match = &query.matches[i];
1990
1991 for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; j++)
1992 n_channels += hweight8(fw_match->matching_channels[j]);
1993
1994 match = kzalloc(sizeof(*match) +
1995 (n_channels * sizeof(*match->channels)),
1996 GFP_KERNEL);
1997 if (!match)
1998 goto out_report_nd;
1999
2000 net_detect->matches[net_detect->n_matches++] = match;
2001
2002
2003
2004
2005 idx = mvm->n_nd_match_sets - i - 1;
2006 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2007 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
2008 match->ssid.ssid_len);
2009
2010 if (mvm->n_nd_channels < n_channels)
2011 continue;
2012
2013 for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; j++)
2014 if (fw_match->matching_channels[j / 8] & (BIT(j % 8)))
2015 match->channels[match->n_channels++] =
2016 mvm->nd_channels[j]->center_freq;
2017 }
2018
2019out_report_nd:
2020 wakeup.net_detect = net_detect;
2021out:
2022 iwl_mvm_free_nd(mvm);
2023
2024 mutex_unlock(&mvm->mutex);
2025 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
2026
2027 if (net_detect) {
2028 for (i = 0; i < net_detect->n_matches; i++)
2029 kfree(net_detect->matches[i]);
2030 kfree(net_detect);
2031 }
2032}
2033
2034static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
2035{
2036#ifdef CONFIG_IWLWIFI_DEBUGFS
2037 const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN];
2038 u32 len = img->sec[IWL_UCODE_SECTION_DATA].len;
2039 u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset;
2040
2041 if (!mvm->store_d3_resume_sram)
2042 return;
2043
2044 if (!mvm->d3_resume_sram) {
2045 mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL);
2046 if (!mvm->d3_resume_sram)
2047 return;
2048 }
2049
2050 iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len);
2051#endif
2052}
2053
2054static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2055 struct ieee80211_vif *vif)
2056{
2057
2058 if (data == vif)
2059 return;
2060
2061 if (vif->type == NL80211_IFTYPE_STATION)
2062 ieee80211_resume_disconnect(vif);
2063}
2064
2065static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
2066{
2067 struct ieee80211_vif *vif = NULL;
2068 int ret = 1;
2069 enum iwl_d3_status d3_status;
2070 bool keep = false;
2071 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2072 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2073
2074 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
2075 CMD_WAKE_UP_TRANS;
2076
2077 mutex_lock(&mvm->mutex);
2078
2079
2080 vif = iwl_mvm_get_bss_vif(mvm);
2081 if (IS_ERR_OR_NULL(vif))
2082 goto err;
2083
2084 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
2085 if (ret)
2086 goto err;
2087
2088 if (d3_status != IWL_D3_STATUS_ALIVE) {
2089 IWL_INFO(mvm, "Device was reset during suspend\n");
2090 goto err;
2091 }
2092
2093
2094 iwl_mvm_read_d3_sram(mvm);
2095
2096
2097
2098
2099
2100 iwl_mvm_update_changed_regdom(mvm);
2101
2102 if (mvm->net_detect) {
2103
2104
2105
2106
2107
2108
2109 if (unified_image)
2110 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2111 false);
2112
2113 iwl_mvm_query_netdetect_reasons(mvm, vif);
2114
2115 goto out;
2116 } else {
2117 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
2118#ifdef CONFIG_IWLWIFI_DEBUGFS
2119 if (keep)
2120 mvm->keep_vif = vif;
2121#endif
2122
2123 goto out_iterate;
2124 }
2125
2126err:
2127 iwl_mvm_free_nd(mvm);
2128 mutex_unlock(&mvm->mutex);
2129
2130out_iterate:
2131 if (!test)
2132 ieee80211_iterate_active_interfaces_rtnl(mvm->hw,
2133 IEEE80211_IFACE_ITER_NORMAL,
2134 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
2135
2136out:
2137 if (unified_image && !ret) {
2138 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
2139 if (!ret)
2140 return 0;
2141 }
2142
2143
2144
2145
2146
2147
2148 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
2149 set_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status);
2150
2151
2152
2153
2154
2155
2156
2157 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
2158
2159 return 1;
2160}
2161
2162static int iwl_mvm_resume_d3(struct iwl_mvm *mvm)
2163{
2164 iwl_trans_resume(mvm->trans);
2165
2166 return __iwl_mvm_resume(mvm, false);
2167}
2168
2169static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm)
2170{
2171 bool exit_now;
2172 enum iwl_d3_status d3_status;
2173 struct iwl_trans *trans = mvm->trans;
2174
2175 iwl_trans_d3_resume(trans, &d3_status, false, false);
2176
2177
2178
2179
2180
2181
2182 mutex_lock(&mvm->d0i3_suspend_mutex);
2183 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
2184 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
2185 &mvm->d0i3_suspend_flags);
2186 mutex_unlock(&mvm->d0i3_suspend_mutex);
2187 if (exit_now) {
2188 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
2189 _iwl_mvm_exit_d0i3(mvm);
2190 }
2191
2192 iwl_trans_resume(trans);
2193
2194 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
2195 int ret = iwl_mvm_exit_d0i3(mvm->hw->priv);
2196
2197 if (ret)
2198 return ret;
2199
2200
2201
2202
2203 }
2204 return 0;
2205}
2206
2207int iwl_mvm_resume(struct ieee80211_hw *hw)
2208{
2209 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2210 int ret;
2211
2212 if (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3)
2213 ret = iwl_mvm_resume_d0i3(mvm);
2214 else
2215 ret = iwl_mvm_resume_d3(mvm);
2216
2217 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2218
2219 return ret;
2220}
2221
2222void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2223{
2224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2225
2226 device_set_wakeup_enable(mvm->trans->dev, enabled);
2227}
2228
2229#ifdef CONFIG_IWLWIFI_DEBUGFS
2230static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2231{
2232 struct iwl_mvm *mvm = inode->i_private;
2233 int err;
2234
2235 if (mvm->d3_test_active)
2236 return -EBUSY;
2237
2238 file->private_data = inode->i_private;
2239
2240 ieee80211_stop_queues(mvm->hw);
2241 synchronize_net();
2242
2243 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
2244
2245
2246 rtnl_lock();
2247 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2248 rtnl_unlock();
2249 if (err > 0)
2250 err = -EINVAL;
2251 if (err) {
2252 ieee80211_wake_queues(mvm->hw);
2253 return err;
2254 }
2255 mvm->d3_test_active = true;
2256 mvm->keep_vif = NULL;
2257 return 0;
2258}
2259
2260static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2261 size_t count, loff_t *ppos)
2262{
2263 struct iwl_mvm *mvm = file->private_data;
2264 u32 pme_asserted;
2265
2266 while (true) {
2267
2268 if (mvm->d3_test_pme_ptr) {
2269 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2270 mvm->d3_test_pme_ptr);
2271 if (pme_asserted)
2272 break;
2273 }
2274
2275 if (msleep_interruptible(100))
2276 break;
2277 }
2278
2279 return 0;
2280}
2281
2282static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2283 struct ieee80211_vif *vif)
2284{
2285
2286 if (_data == vif)
2287 return;
2288
2289 if (vif->type == NL80211_IFTYPE_STATION)
2290 ieee80211_connection_loss(vif);
2291}
2292
2293static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2294{
2295 struct iwl_mvm *mvm = inode->i_private;
2296 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2297 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2298
2299 mvm->d3_test_active = false;
2300
2301 rtnl_lock();
2302 __iwl_mvm_resume(mvm, true);
2303 rtnl_unlock();
2304
2305 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2306
2307 iwl_abort_notification_waits(&mvm->notif_wait);
2308 if (!unified_image) {
2309 int remaining_time = 10;
2310
2311 ieee80211_restart_hw(mvm->hw);
2312
2313
2314 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2315 remaining_time > 0) {
2316 remaining_time--;
2317 msleep(1000);
2318 }
2319
2320 if (remaining_time == 0)
2321 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2322 }
2323
2324 ieee80211_iterate_active_interfaces_atomic(
2325 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2326 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2327
2328 ieee80211_wake_queues(mvm->hw);
2329
2330 return 0;
2331}
2332
2333const struct file_operations iwl_dbgfs_d3_test_ops = {
2334 .llseek = no_llseek,
2335 .open = iwl_mvm_d3_test_open,
2336 .read = iwl_mvm_d3_test_read,
2337 .release = iwl_mvm_d3_test_release,
2338};
2339#endif
2340