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5
6#include <linux/etherdevice.h>
7#include <linux/math64.h>
8#include <net/cfg80211.h>
9#include "mvm.h"
10#include "iwl-io.h"
11#include "iwl-prph.h"
12#include "constants.h"
13
14struct iwl_mvm_loc_entry {
15 struct list_head list;
16 u8 addr[ETH_ALEN];
17 u8 lci_len, civic_len;
18 u8 buf[];
19};
20
21struct iwl_mvm_smooth_entry {
22 struct list_head list;
23 u8 addr[ETH_ALEN];
24 s64 rtt_avg;
25 u64 host_time;
26};
27
28struct iwl_mvm_ftm_pasn_entry {
29 struct list_head list;
30 u8 addr[ETH_ALEN];
31 u8 hltk[HLTK_11AZ_LEN];
32 u8 tk[TK_11AZ_LEN];
33 u8 cipher;
34 u8 tx_pn[IEEE80211_CCMP_PN_LEN];
35 u8 rx_pn[IEEE80211_CCMP_PN_LEN];
36};
37
38int iwl_mvm_ftm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
39 u8 *addr, u32 cipher, u8 *tk, u32 tk_len,
40 u8 *hltk, u32 hltk_len)
41{
42 struct iwl_mvm_ftm_pasn_entry *pasn = kzalloc(sizeof(*pasn),
43 GFP_KERNEL);
44 u32 expected_tk_len;
45
46 lockdep_assert_held(&mvm->mutex);
47
48 if (!pasn)
49 return -ENOBUFS;
50
51 pasn->cipher = iwl_mvm_cipher_to_location_cipher(cipher);
52
53 switch (pasn->cipher) {
54 case IWL_LOCATION_CIPHER_CCMP_128:
55 case IWL_LOCATION_CIPHER_GCMP_128:
56 expected_tk_len = WLAN_KEY_LEN_CCMP;
57 break;
58 case IWL_LOCATION_CIPHER_GCMP_256:
59 expected_tk_len = WLAN_KEY_LEN_GCMP_256;
60 break;
61 default:
62 goto out;
63 }
64
65
66
67
68
69
70 if (vif->bss_conf.assoc &&
71 !memcmp(addr, vif->bss_conf.bssid, ETH_ALEN)) {
72 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
73 struct ieee80211_sta *sta;
74
75 rcu_read_lock();
76 sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
77 if (!IS_ERR_OR_NULL(sta) && sta->mfp)
78 expected_tk_len = 0;
79 rcu_read_unlock();
80 }
81
82 if (tk_len != expected_tk_len || hltk_len != sizeof(pasn->hltk)) {
83 IWL_ERR(mvm, "Invalid key length: tk_len=%u hltk_len=%u\n",
84 tk_len, hltk_len);
85 goto out;
86 }
87
88 memcpy(pasn->addr, addr, sizeof(pasn->addr));
89 memcpy(pasn->hltk, hltk, sizeof(pasn->hltk));
90
91 if (tk && tk_len)
92 memcpy(pasn->tk, tk, sizeof(pasn->tk));
93
94 list_add_tail(&pasn->list, &mvm->ftm_initiator.pasn_list);
95 return 0;
96out:
97 kfree(pasn);
98 return -EINVAL;
99}
100
101void iwl_mvm_ftm_remove_pasn_sta(struct iwl_mvm *mvm, u8 *addr)
102{
103 struct iwl_mvm_ftm_pasn_entry *entry, *prev;
104
105 lockdep_assert_held(&mvm->mutex);
106
107 list_for_each_entry_safe(entry, prev, &mvm->ftm_initiator.pasn_list,
108 list) {
109 if (memcmp(entry->addr, addr, sizeof(entry->addr)))
110 continue;
111
112 list_del(&entry->list);
113 kfree(entry);
114 return;
115 }
116}
117
118static void iwl_mvm_ftm_reset(struct iwl_mvm *mvm)
119{
120 struct iwl_mvm_loc_entry *e, *t;
121
122 mvm->ftm_initiator.req = NULL;
123 mvm->ftm_initiator.req_wdev = NULL;
124 memset(mvm->ftm_initiator.responses, 0,
125 sizeof(mvm->ftm_initiator.responses));
126
127 list_for_each_entry_safe(e, t, &mvm->ftm_initiator.loc_list, list) {
128 list_del(&e->list);
129 kfree(e);
130 }
131}
132
133void iwl_mvm_ftm_restart(struct iwl_mvm *mvm)
134{
135 struct cfg80211_pmsr_result result = {
136 .status = NL80211_PMSR_STATUS_FAILURE,
137 .final = 1,
138 .host_time = ktime_get_boottime_ns(),
139 .type = NL80211_PMSR_TYPE_FTM,
140 };
141 int i;
142
143 lockdep_assert_held(&mvm->mutex);
144
145 if (!mvm->ftm_initiator.req)
146 return;
147
148 for (i = 0; i < mvm->ftm_initiator.req->n_peers; i++) {
149 memcpy(result.addr, mvm->ftm_initiator.req->peers[i].addr,
150 ETH_ALEN);
151 result.ftm.burst_index = mvm->ftm_initiator.responses[i];
152
153 cfg80211_pmsr_report(mvm->ftm_initiator.req_wdev,
154 mvm->ftm_initiator.req,
155 &result, GFP_KERNEL);
156 }
157
158 cfg80211_pmsr_complete(mvm->ftm_initiator.req_wdev,
159 mvm->ftm_initiator.req, GFP_KERNEL);
160 iwl_mvm_ftm_reset(mvm);
161}
162
163void iwl_mvm_ftm_initiator_smooth_config(struct iwl_mvm *mvm)
164{
165 INIT_LIST_HEAD(&mvm->ftm_initiator.smooth.resp);
166
167 IWL_DEBUG_INFO(mvm,
168 "enable=%u, alpha=%u, age_jiffies=%u, thresh=(%u:%u)\n",
169 IWL_MVM_FTM_INITIATOR_ENABLE_SMOOTH,
170 IWL_MVM_FTM_INITIATOR_SMOOTH_ALPHA,
171 IWL_MVM_FTM_INITIATOR_SMOOTH_AGE_SEC * HZ,
172 IWL_MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT,
173 IWL_MVM_FTM_INITIATOR_SMOOTH_UNDERSHOOT);
174}
175
176void iwl_mvm_ftm_initiator_smooth_stop(struct iwl_mvm *mvm)
177{
178 struct iwl_mvm_smooth_entry *se, *st;
179
180 list_for_each_entry_safe(se, st, &mvm->ftm_initiator.smooth.resp,
181 list) {
182 list_del(&se->list);
183 kfree(se);
184 }
185}
186
187static int
188iwl_ftm_range_request_status_to_err(enum iwl_tof_range_request_status s)
189{
190 switch (s) {
191 case IWL_TOF_RANGE_REQUEST_STATUS_SUCCESS:
192 return 0;
193 case IWL_TOF_RANGE_REQUEST_STATUS_BUSY:
194 return -EBUSY;
195 default:
196 WARN_ON_ONCE(1);
197 return -EIO;
198 }
199}
200
201static void iwl_mvm_ftm_cmd_v5(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
202 struct iwl_tof_range_req_cmd_v5 *cmd,
203 struct cfg80211_pmsr_request *req)
204{
205 int i;
206
207 cmd->request_id = req->cookie;
208 cmd->num_of_ap = req->n_peers;
209
210
211 if (!req->timeout || req->timeout > 255 * 100)
212 cmd->req_timeout = 255;
213 else
214 cmd->req_timeout = DIV_ROUND_UP(req->timeout, 100);
215
216
217
218
219
220 cmd->macaddr_random = 1;
221 memcpy(cmd->macaddr_template, req->mac_addr, ETH_ALEN);
222 for (i = 0; i < ETH_ALEN; i++)
223 cmd->macaddr_mask[i] = ~req->mac_addr_mask[i];
224
225 if (vif->bss_conf.assoc)
226 memcpy(cmd->range_req_bssid, vif->bss_conf.bssid, ETH_ALEN);
227 else
228 eth_broadcast_addr(cmd->range_req_bssid);
229}
230
231static void iwl_mvm_ftm_cmd_common(struct iwl_mvm *mvm,
232 struct ieee80211_vif *vif,
233 struct iwl_tof_range_req_cmd_v9 *cmd,
234 struct cfg80211_pmsr_request *req)
235{
236 int i;
237
238 cmd->initiator_flags =
239 cpu_to_le32(IWL_TOF_INITIATOR_FLAGS_MACADDR_RANDOM |
240 IWL_TOF_INITIATOR_FLAGS_NON_ASAP_SUPPORT);
241 cmd->request_id = req->cookie;
242 cmd->num_of_ap = req->n_peers;
243
244
245
246
247
248 if (req->timeout)
249 cmd->req_timeout_ms = cpu_to_le32(req->timeout);
250 else
251 cmd->req_timeout_ms = cpu_to_le32(0xfffff);
252
253 memcpy(cmd->macaddr_template, req->mac_addr, ETH_ALEN);
254 for (i = 0; i < ETH_ALEN; i++)
255 cmd->macaddr_mask[i] = ~req->mac_addr_mask[i];
256
257 if (vif->bss_conf.assoc) {
258 memcpy(cmd->range_req_bssid, vif->bss_conf.bssid, ETH_ALEN);
259
260
261 for (i = 0; i < req->n_peers; i++) {
262 if (req->peers[i].report_ap_tsf) {
263 struct iwl_mvm_vif *mvmvif =
264 iwl_mvm_vif_from_mac80211(vif);
265
266 cmd->tsf_mac_id = cpu_to_le32(mvmvif->id);
267 return;
268 }
269 }
270 } else {
271 eth_broadcast_addr(cmd->range_req_bssid);
272 }
273
274
275 cmd->tsf_mac_id = cpu_to_le32(0xff);
276}
277
278static void iwl_mvm_ftm_cmd_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
279 struct iwl_tof_range_req_cmd_v8 *cmd,
280 struct cfg80211_pmsr_request *req)
281{
282 iwl_mvm_ftm_cmd_common(mvm, vif, (void *)cmd, req);
283}
284
285static int
286iwl_mvm_ftm_target_chandef_v1(struct iwl_mvm *mvm,
287 struct cfg80211_pmsr_request_peer *peer,
288 u8 *channel, u8 *bandwidth,
289 u8 *ctrl_ch_position)
290{
291 u32 freq = peer->chandef.chan->center_freq;
292
293 *channel = ieee80211_frequency_to_channel(freq);
294
295 switch (peer->chandef.width) {
296 case NL80211_CHAN_WIDTH_20_NOHT:
297 *bandwidth = IWL_TOF_BW_20_LEGACY;
298 break;
299 case NL80211_CHAN_WIDTH_20:
300 *bandwidth = IWL_TOF_BW_20_HT;
301 break;
302 case NL80211_CHAN_WIDTH_40:
303 *bandwidth = IWL_TOF_BW_40;
304 break;
305 case NL80211_CHAN_WIDTH_80:
306 *bandwidth = IWL_TOF_BW_80;
307 break;
308 default:
309 IWL_ERR(mvm, "Unsupported BW in FTM request (%d)\n",
310 peer->chandef.width);
311 return -EINVAL;
312 }
313
314 *ctrl_ch_position = (peer->chandef.width > NL80211_CHAN_WIDTH_20) ?
315 iwl_mvm_get_ctrl_pos(&peer->chandef) : 0;
316
317 return 0;
318}
319
320static int
321iwl_mvm_ftm_target_chandef_v2(struct iwl_mvm *mvm,
322 struct cfg80211_pmsr_request_peer *peer,
323 u8 *channel, u8 *format_bw,
324 u8 *ctrl_ch_position)
325{
326 u32 freq = peer->chandef.chan->center_freq;
327
328 *channel = ieee80211_frequency_to_channel(freq);
329
330 switch (peer->chandef.width) {
331 case NL80211_CHAN_WIDTH_20_NOHT:
332 *format_bw = IWL_LOCATION_FRAME_FORMAT_LEGACY;
333 *format_bw |= IWL_LOCATION_BW_20MHZ << LOCATION_BW_POS;
334 break;
335 case NL80211_CHAN_WIDTH_20:
336 *format_bw = IWL_LOCATION_FRAME_FORMAT_HT;
337 *format_bw |= IWL_LOCATION_BW_20MHZ << LOCATION_BW_POS;
338 break;
339 case NL80211_CHAN_WIDTH_40:
340 *format_bw = IWL_LOCATION_FRAME_FORMAT_HT;
341 *format_bw |= IWL_LOCATION_BW_40MHZ << LOCATION_BW_POS;
342 break;
343 case NL80211_CHAN_WIDTH_80:
344 *format_bw = IWL_LOCATION_FRAME_FORMAT_VHT;
345 *format_bw |= IWL_LOCATION_BW_80MHZ << LOCATION_BW_POS;
346 break;
347 default:
348 IWL_ERR(mvm, "Unsupported BW in FTM request (%d)\n",
349 peer->chandef.width);
350 return -EINVAL;
351 }
352
353
354 if (peer->ftm.trigger_based || peer->ftm.non_trigger_based)
355 *format_bw |= IWL_LOCATION_FRAME_FORMAT_HE;
356
357 *ctrl_ch_position = (peer->chandef.width > NL80211_CHAN_WIDTH_20) ?
358 iwl_mvm_get_ctrl_pos(&peer->chandef) : 0;
359
360 return 0;
361}
362
363static int
364iwl_mvm_ftm_put_target_v2(struct iwl_mvm *mvm,
365 struct cfg80211_pmsr_request_peer *peer,
366 struct iwl_tof_range_req_ap_entry_v2 *target)
367{
368 int ret;
369
370 ret = iwl_mvm_ftm_target_chandef_v1(mvm, peer, &target->channel_num,
371 &target->bandwidth,
372 &target->ctrl_ch_position);
373 if (ret)
374 return ret;
375
376 memcpy(target->bssid, peer->addr, ETH_ALEN);
377 target->burst_period =
378 cpu_to_le16(peer->ftm.burst_period);
379 target->samples_per_burst = peer->ftm.ftms_per_burst;
380 target->num_of_bursts = peer->ftm.num_bursts_exp;
381 target->measure_type = 0;
382 target->retries_per_sample = peer->ftm.ftmr_retries;
383 target->asap_mode = peer->ftm.asap;
384 target->enable_dyn_ack = IWL_MVM_FTM_INITIATOR_DYNACK;
385
386 if (peer->ftm.request_lci)
387 target->location_req |= IWL_TOF_LOC_LCI;
388 if (peer->ftm.request_civicloc)
389 target->location_req |= IWL_TOF_LOC_CIVIC;
390
391 target->algo_type = IWL_MVM_FTM_INITIATOR_ALGO;
392
393 return 0;
394}
395
396#define FTM_PUT_FLAG(flag) (target->initiator_ap_flags |= \
397 cpu_to_le32(IWL_INITIATOR_AP_FLAGS_##flag))
398
399static void
400iwl_mvm_ftm_put_target_common(struct iwl_mvm *mvm,
401 struct cfg80211_pmsr_request_peer *peer,
402 struct iwl_tof_range_req_ap_entry_v6 *target)
403{
404 memcpy(target->bssid, peer->addr, ETH_ALEN);
405 target->burst_period =
406 cpu_to_le16(peer->ftm.burst_period);
407 target->samples_per_burst = peer->ftm.ftms_per_burst;
408 target->num_of_bursts = peer->ftm.num_bursts_exp;
409 target->ftmr_max_retries = peer->ftm.ftmr_retries;
410 target->initiator_ap_flags = cpu_to_le32(0);
411
412 if (peer->ftm.asap)
413 FTM_PUT_FLAG(ASAP);
414
415 if (peer->ftm.request_lci)
416 FTM_PUT_FLAG(LCI_REQUEST);
417
418 if (peer->ftm.request_civicloc)
419 FTM_PUT_FLAG(CIVIC_REQUEST);
420
421 if (IWL_MVM_FTM_INITIATOR_DYNACK)
422 FTM_PUT_FLAG(DYN_ACK);
423
424 if (IWL_MVM_FTM_INITIATOR_ALGO == IWL_TOF_ALGO_TYPE_LINEAR_REG)
425 FTM_PUT_FLAG(ALGO_LR);
426 else if (IWL_MVM_FTM_INITIATOR_ALGO == IWL_TOF_ALGO_TYPE_FFT)
427 FTM_PUT_FLAG(ALGO_FFT);
428
429 if (peer->ftm.trigger_based)
430 FTM_PUT_FLAG(TB);
431 else if (peer->ftm.non_trigger_based)
432 FTM_PUT_FLAG(NON_TB);
433
434 if ((peer->ftm.trigger_based || peer->ftm.non_trigger_based) &&
435 peer->ftm.lmr_feedback)
436 FTM_PUT_FLAG(LMR_FEEDBACK);
437}
438
439static int
440iwl_mvm_ftm_put_target_v3(struct iwl_mvm *mvm,
441 struct cfg80211_pmsr_request_peer *peer,
442 struct iwl_tof_range_req_ap_entry_v3 *target)
443{
444 int ret;
445
446 ret = iwl_mvm_ftm_target_chandef_v1(mvm, peer, &target->channel_num,
447 &target->bandwidth,
448 &target->ctrl_ch_position);
449 if (ret)
450 return ret;
451
452
453
454
455
456 iwl_mvm_ftm_put_target_common(mvm, peer, (void *)target);
457
458 return 0;
459}
460
461static int
462iwl_mvm_ftm_put_target_v4(struct iwl_mvm *mvm,
463 struct cfg80211_pmsr_request_peer *peer,
464 struct iwl_tof_range_req_ap_entry_v4 *target)
465{
466 int ret;
467
468 ret = iwl_mvm_ftm_target_chandef_v2(mvm, peer, &target->channel_num,
469 &target->format_bw,
470 &target->ctrl_ch_position);
471 if (ret)
472 return ret;
473
474 iwl_mvm_ftm_put_target_common(mvm, peer, (void *)target);
475
476 return 0;
477}
478
479static int
480iwl_mvm_ftm_put_target(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
481 struct cfg80211_pmsr_request_peer *peer,
482 struct iwl_tof_range_req_ap_entry_v6 *target)
483{
484 int ret;
485
486 ret = iwl_mvm_ftm_target_chandef_v2(mvm, peer, &target->channel_num,
487 &target->format_bw,
488 &target->ctrl_ch_position);
489 if (ret)
490 return ret;
491
492 iwl_mvm_ftm_put_target_common(mvm, peer, target);
493
494 if (vif->bss_conf.assoc &&
495 !memcmp(peer->addr, vif->bss_conf.bssid, ETH_ALEN)) {
496 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
497 struct ieee80211_sta *sta;
498
499 rcu_read_lock();
500
501 sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
502 if (sta->mfp)
503 FTM_PUT_FLAG(PMF);
504
505 rcu_read_unlock();
506
507 target->sta_id = mvmvif->ap_sta_id;
508 } else {
509 target->sta_id = IWL_MVM_INVALID_STA;
510 }
511
512
513
514
515
516 target->beacon_interval = cpu_to_le16(100);
517 return 0;
518}
519
520static int iwl_mvm_ftm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *hcmd)
521{
522 u32 status;
523 int err = iwl_mvm_send_cmd_status(mvm, hcmd, &status);
524
525 if (!err && status) {
526 IWL_ERR(mvm, "FTM range request command failure, status: %u\n",
527 status);
528 err = iwl_ftm_range_request_status_to_err(status);
529 }
530
531 return err;
532}
533
534static int iwl_mvm_ftm_start_v5(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
535 struct cfg80211_pmsr_request *req)
536{
537 struct iwl_tof_range_req_cmd_v5 cmd_v5;
538 struct iwl_host_cmd hcmd = {
539 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
540 .dataflags[0] = IWL_HCMD_DFL_DUP,
541 .data[0] = &cmd_v5,
542 .len[0] = sizeof(cmd_v5),
543 };
544 u8 i;
545 int err;
546
547 iwl_mvm_ftm_cmd_v5(mvm, vif, &cmd_v5, req);
548
549 for (i = 0; i < cmd_v5.num_of_ap; i++) {
550 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
551
552 err = iwl_mvm_ftm_put_target_v2(mvm, peer, &cmd_v5.ap[i]);
553 if (err)
554 return err;
555 }
556
557 return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
558}
559
560static int iwl_mvm_ftm_start_v7(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
561 struct cfg80211_pmsr_request *req)
562{
563 struct iwl_tof_range_req_cmd_v7 cmd_v7;
564 struct iwl_host_cmd hcmd = {
565 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
566 .dataflags[0] = IWL_HCMD_DFL_DUP,
567 .data[0] = &cmd_v7,
568 .len[0] = sizeof(cmd_v7),
569 };
570 u8 i;
571 int err;
572
573
574
575
576
577 iwl_mvm_ftm_cmd_v8(mvm, vif, (void *)&cmd_v7, req);
578
579 for (i = 0; i < cmd_v7.num_of_ap; i++) {
580 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
581
582 err = iwl_mvm_ftm_put_target_v3(mvm, peer, &cmd_v7.ap[i]);
583 if (err)
584 return err;
585 }
586
587 return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
588}
589
590static int iwl_mvm_ftm_start_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
591 struct cfg80211_pmsr_request *req)
592{
593 struct iwl_tof_range_req_cmd_v8 cmd;
594 struct iwl_host_cmd hcmd = {
595 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
596 .dataflags[0] = IWL_HCMD_DFL_DUP,
597 .data[0] = &cmd,
598 .len[0] = sizeof(cmd),
599 };
600 u8 i;
601 int err;
602
603 iwl_mvm_ftm_cmd_v8(mvm, vif, (void *)&cmd, req);
604
605 for (i = 0; i < cmd.num_of_ap; i++) {
606 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
607
608 err = iwl_mvm_ftm_put_target_v4(mvm, peer, &cmd.ap[i]);
609 if (err)
610 return err;
611 }
612
613 return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
614}
615
616static int iwl_mvm_ftm_start_v9(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
617 struct cfg80211_pmsr_request *req)
618{
619 struct iwl_tof_range_req_cmd_v9 cmd;
620 struct iwl_host_cmd hcmd = {
621 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
622 .dataflags[0] = IWL_HCMD_DFL_DUP,
623 .data[0] = &cmd,
624 .len[0] = sizeof(cmd),
625 };
626 u8 i;
627 int err;
628
629 iwl_mvm_ftm_cmd_common(mvm, vif, &cmd, req);
630
631 for (i = 0; i < cmd.num_of_ap; i++) {
632 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
633 struct iwl_tof_range_req_ap_entry_v6 *target = &cmd.ap[i];
634
635 err = iwl_mvm_ftm_put_target(mvm, vif, peer, target);
636 if (err)
637 return err;
638 }
639
640 return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
641}
642
643static void iter(struct ieee80211_hw *hw,
644 struct ieee80211_vif *vif,
645 struct ieee80211_sta *sta,
646 struct ieee80211_key_conf *key,
647 void *data)
648{
649 struct iwl_tof_range_req_ap_entry_v6 *target = data;
650
651 if (!sta || memcmp(sta->addr, target->bssid, ETH_ALEN))
652 return;
653
654 WARN_ON(!sta->mfp);
655
656 if (WARN_ON(key->keylen > sizeof(target->tk)))
657 return;
658
659 memcpy(target->tk, key->key, key->keylen);
660 target->cipher = iwl_mvm_cipher_to_location_cipher(key->cipher);
661 WARN_ON(target->cipher == IWL_LOCATION_CIPHER_INVALID);
662}
663
664static void
665iwl_mvm_ftm_set_secured_ranging(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
666 struct iwl_tof_range_req_ap_entry_v7 *target)
667{
668 struct iwl_mvm_ftm_pasn_entry *entry;
669 u32 flags = le32_to_cpu(target->initiator_ap_flags);
670
671 if (!(flags & (IWL_INITIATOR_AP_FLAGS_NON_TB |
672 IWL_INITIATOR_AP_FLAGS_TB)))
673 return;
674
675 lockdep_assert_held(&mvm->mutex);
676
677 list_for_each_entry(entry, &mvm->ftm_initiator.pasn_list, list) {
678 if (memcmp(entry->addr, target->bssid, sizeof(entry->addr)))
679 continue;
680
681 target->cipher = entry->cipher;
682 memcpy(target->hltk, entry->hltk, sizeof(target->hltk));
683
684 if (vif->bss_conf.assoc &&
685 !memcmp(vif->bss_conf.bssid, target->bssid,
686 sizeof(target->bssid)))
687 ieee80211_iter_keys(mvm->hw, vif, iter, target);
688 else
689 memcpy(target->tk, entry->tk, sizeof(target->tk));
690
691 memcpy(target->rx_pn, entry->rx_pn, sizeof(target->rx_pn));
692 memcpy(target->tx_pn, entry->tx_pn, sizeof(target->tx_pn));
693
694 target->initiator_ap_flags |=
695 cpu_to_le32(IWL_INITIATOR_AP_FLAGS_SECURED);
696 return;
697 }
698}
699
700static int
701iwl_mvm_ftm_put_target_v7(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
702 struct cfg80211_pmsr_request_peer *peer,
703 struct iwl_tof_range_req_ap_entry_v7 *target)
704{
705 int err = iwl_mvm_ftm_put_target(mvm, vif, peer, (void *)target);
706 if (err)
707 return err;
708
709 iwl_mvm_ftm_set_secured_ranging(mvm, vif, target);
710 return err;
711}
712
713static int iwl_mvm_ftm_start_v11(struct iwl_mvm *mvm,
714 struct ieee80211_vif *vif,
715 struct cfg80211_pmsr_request *req)
716{
717 struct iwl_tof_range_req_cmd_v11 cmd;
718 struct iwl_host_cmd hcmd = {
719 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
720 .dataflags[0] = IWL_HCMD_DFL_DUP,
721 .data[0] = &cmd,
722 .len[0] = sizeof(cmd),
723 };
724 u8 i;
725 int err;
726
727 iwl_mvm_ftm_cmd_common(mvm, vif, (void *)&cmd, req);
728
729 for (i = 0; i < cmd.num_of_ap; i++) {
730 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
731 struct iwl_tof_range_req_ap_entry_v7 *target = &cmd.ap[i];
732
733 err = iwl_mvm_ftm_put_target_v7(mvm, vif, peer, target);
734 if (err)
735 return err;
736 }
737
738 return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
739}
740
741static void
742iwl_mvm_ftm_set_ndp_params(struct iwl_mvm *mvm,
743 struct iwl_tof_range_req_ap_entry_v8 *target)
744{
745
746 u32 i2r_max_sts = IWL_MVM_FTM_I2R_MAX_STS > 1 ? 1 :
747 IWL_MVM_FTM_I2R_MAX_STS;
748
749 target->r2i_ndp_params = IWL_MVM_FTM_R2I_MAX_REP |
750 (IWL_MVM_FTM_R2I_MAX_STS << IWL_LOCATION_MAX_STS_POS);
751 target->i2r_ndp_params = IWL_MVM_FTM_I2R_MAX_REP |
752 (i2r_max_sts << IWL_LOCATION_MAX_STS_POS);
753 target->r2i_max_total_ltf = IWL_MVM_FTM_R2I_MAX_TOTAL_LTF;
754 target->i2r_max_total_ltf = IWL_MVM_FTM_I2R_MAX_TOTAL_LTF;
755}
756
757static int iwl_mvm_ftm_start_v12(struct iwl_mvm *mvm,
758 struct ieee80211_vif *vif,
759 struct cfg80211_pmsr_request *req)
760{
761 struct iwl_tof_range_req_cmd_v12 cmd;
762 struct iwl_host_cmd hcmd = {
763 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
764 .dataflags[0] = IWL_HCMD_DFL_DUP,
765 .data[0] = &cmd,
766 .len[0] = sizeof(cmd),
767 };
768 u8 i;
769 int err;
770
771 iwl_mvm_ftm_cmd_common(mvm, vif, (void *)&cmd, req);
772
773 for (i = 0; i < cmd.num_of_ap; i++) {
774 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
775 struct iwl_tof_range_req_ap_entry_v8 *target = &cmd.ap[i];
776 u32 flags;
777
778 err = iwl_mvm_ftm_put_target_v7(mvm, vif, peer, (void *)target);
779 if (err)
780 return err;
781
782 iwl_mvm_ftm_set_ndp_params(mvm, target);
783
784
785
786
787 flags = le32_to_cpu(target->initiator_ap_flags);
788 if ((flags & IWL_INITIATOR_AP_FLAGS_SECURED) &&
789 !IWL_MVM_FTM_INITIATOR_SECURE_LTF) {
790 flags &= ~IWL_INITIATOR_AP_FLAGS_SECURED;
791 flags |= IWL_INITIATOR_AP_FLAGS_PMF;
792 target->initiator_ap_flags = cpu_to_le32(flags);
793 }
794 }
795
796 return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
797}
798
799int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
800 struct cfg80211_pmsr_request *req)
801{
802 bool new_api = fw_has_api(&mvm->fw->ucode_capa,
803 IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ);
804 int err;
805
806 lockdep_assert_held(&mvm->mutex);
807
808 if (mvm->ftm_initiator.req)
809 return -EBUSY;
810
811 if (new_api) {
812 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LOCATION_GROUP,
813 TOF_RANGE_REQ_CMD,
814 IWL_FW_CMD_VER_UNKNOWN);
815
816 switch (cmd_ver) {
817 case 12:
818 err = iwl_mvm_ftm_start_v12(mvm, vif, req);
819 break;
820 case 11:
821 err = iwl_mvm_ftm_start_v11(mvm, vif, req);
822 break;
823 case 9:
824 case 10:
825 err = iwl_mvm_ftm_start_v9(mvm, vif, req);
826 break;
827 case 8:
828 err = iwl_mvm_ftm_start_v8(mvm, vif, req);
829 break;
830 default:
831 err = iwl_mvm_ftm_start_v7(mvm, vif, req);
832 break;
833 }
834 } else {
835 err = iwl_mvm_ftm_start_v5(mvm, vif, req);
836 }
837
838 if (!err) {
839 mvm->ftm_initiator.req = req;
840 mvm->ftm_initiator.req_wdev = ieee80211_vif_to_wdev(vif);
841 }
842
843 return err;
844}
845
846void iwl_mvm_ftm_abort(struct iwl_mvm *mvm, struct cfg80211_pmsr_request *req)
847{
848 struct iwl_tof_range_abort_cmd cmd = {
849 .request_id = req->cookie,
850 };
851
852 lockdep_assert_held(&mvm->mutex);
853
854 if (req != mvm->ftm_initiator.req)
855 return;
856
857 iwl_mvm_ftm_reset(mvm);
858
859 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(TOF_RANGE_ABORT_CMD,
860 LOCATION_GROUP, 0),
861 0, sizeof(cmd), &cmd))
862 IWL_ERR(mvm, "failed to abort FTM process\n");
863}
864
865static int iwl_mvm_ftm_find_peer(struct cfg80211_pmsr_request *req,
866 const u8 *addr)
867{
868 int i;
869
870 for (i = 0; i < req->n_peers; i++) {
871 struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
872
873 if (ether_addr_equal_unaligned(peer->addr, addr))
874 return i;
875 }
876
877 return -ENOENT;
878}
879
880static u64 iwl_mvm_ftm_get_host_time(struct iwl_mvm *mvm, __le32 fw_gp2_ts)
881{
882 u32 gp2_ts = le32_to_cpu(fw_gp2_ts);
883 u32 curr_gp2, diff;
884 u64 now_from_boot_ns;
885
886 iwl_mvm_get_sync_time(mvm, CLOCK_BOOTTIME, &curr_gp2,
887 &now_from_boot_ns, NULL);
888
889 if (curr_gp2 >= gp2_ts)
890 diff = curr_gp2 - gp2_ts;
891 else
892 diff = curr_gp2 + (U32_MAX - gp2_ts + 1);
893
894 return now_from_boot_ns - (u64)diff * 1000;
895}
896
897static void iwl_mvm_ftm_get_lci_civic(struct iwl_mvm *mvm,
898 struct cfg80211_pmsr_result *res)
899{
900 struct iwl_mvm_loc_entry *entry;
901
902 list_for_each_entry(entry, &mvm->ftm_initiator.loc_list, list) {
903 if (!ether_addr_equal_unaligned(res->addr, entry->addr))
904 continue;
905
906 if (entry->lci_len) {
907 res->ftm.lci_len = entry->lci_len;
908 res->ftm.lci = entry->buf;
909 }
910
911 if (entry->civic_len) {
912 res->ftm.civicloc_len = entry->civic_len;
913 res->ftm.civicloc = entry->buf + entry->lci_len;
914 }
915
916
917 break;
918 }
919}
920
921static int iwl_mvm_ftm_range_resp_valid(struct iwl_mvm *mvm, u8 request_id,
922 u8 num_of_aps)
923{
924 lockdep_assert_held(&mvm->mutex);
925
926 if (request_id != (u8)mvm->ftm_initiator.req->cookie) {
927 IWL_ERR(mvm, "Request ID mismatch, got %u, active %u\n",
928 request_id, (u8)mvm->ftm_initiator.req->cookie);
929 return -EINVAL;
930 }
931
932 if (num_of_aps > mvm->ftm_initiator.req->n_peers) {
933 IWL_ERR(mvm, "FTM range response invalid\n");
934 return -EINVAL;
935 }
936
937 return 0;
938}
939
940static void iwl_mvm_ftm_rtt_smoothing(struct iwl_mvm *mvm,
941 struct cfg80211_pmsr_result *res)
942{
943 struct iwl_mvm_smooth_entry *resp;
944 s64 rtt_avg, rtt = res->ftm.rtt_avg;
945 u32 undershoot, overshoot;
946 u8 alpha;
947 bool found;
948
949 if (!IWL_MVM_FTM_INITIATOR_ENABLE_SMOOTH)
950 return;
951
952 WARN_ON(rtt < 0);
953
954 if (res->status != NL80211_PMSR_STATUS_SUCCESS) {
955 IWL_DEBUG_INFO(mvm,
956 ": %pM: ignore failed measurement. Status=%u\n",
957 res->addr, res->status);
958 return;
959 }
960
961 found = false;
962 list_for_each_entry(resp, &mvm->ftm_initiator.smooth.resp, list) {
963 if (!memcmp(res->addr, resp->addr, ETH_ALEN)) {
964 found = true;
965 break;
966 }
967 }
968
969 if (!found) {
970 resp = kzalloc(sizeof(*resp), GFP_KERNEL);
971 if (!resp)
972 return;
973
974 memcpy(resp->addr, res->addr, ETH_ALEN);
975 list_add_tail(&resp->list, &mvm->ftm_initiator.smooth.resp);
976
977 resp->rtt_avg = rtt;
978
979 IWL_DEBUG_INFO(mvm, "new: %pM: rtt_avg=%lld\n",
980 resp->addr, resp->rtt_avg);
981 goto update_time;
982 }
983
984 if (res->host_time - resp->host_time >
985 IWL_MVM_FTM_INITIATOR_SMOOTH_AGE_SEC * 1000000000) {
986 resp->rtt_avg = rtt;
987
988 IWL_DEBUG_INFO(mvm, "expired: %pM: rtt_avg=%lld\n",
989 resp->addr, resp->rtt_avg);
990 goto update_time;
991 }
992
993
994 undershoot = IWL_MVM_FTM_INITIATOR_SMOOTH_UNDERSHOOT;
995 overshoot = IWL_MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT;
996 alpha = IWL_MVM_FTM_INITIATOR_SMOOTH_ALPHA;
997
998 rtt_avg = (alpha * rtt + (100 - alpha) * resp->rtt_avg) / 100;
999
1000 IWL_DEBUG_INFO(mvm,
1001 "%pM: prev rtt_avg=%lld, new rtt_avg=%lld, rtt=%lld\n",
1002 resp->addr, resp->rtt_avg, rtt_avg, rtt);
1003
1004
1005
1006
1007
1008 resp->rtt_avg = rtt_avg;
1009
1010
1011 if (rtt_avg > rtt && (rtt_avg - rtt) > undershoot) {
1012 res->ftm.rtt_avg = rtt_avg;
1013
1014 IWL_DEBUG_INFO(mvm,
1015 "undershoot: val=%lld\n",
1016 (rtt_avg - rtt));
1017 } else if (rtt_avg < rtt && (rtt - rtt_avg) >
1018 overshoot) {
1019 res->ftm.rtt_avg = rtt_avg;
1020 IWL_DEBUG_INFO(mvm,
1021 "overshoot: val=%lld\n",
1022 (rtt - rtt_avg));
1023 }
1024
1025update_time:
1026 resp->host_time = res->host_time;
1027}
1028
1029static void iwl_mvm_debug_range_resp(struct iwl_mvm *mvm, u8 index,
1030 struct cfg80211_pmsr_result *res)
1031{
1032 s64 rtt_avg = div_s64(res->ftm.rtt_avg * 100, 6666);
1033
1034 IWL_DEBUG_INFO(mvm, "entry %d\n", index);
1035 IWL_DEBUG_INFO(mvm, "\tstatus: %d\n", res->status);
1036 IWL_DEBUG_INFO(mvm, "\tBSSID: %pM\n", res->addr);
1037 IWL_DEBUG_INFO(mvm, "\thost time: %llu\n", res->host_time);
1038 IWL_DEBUG_INFO(mvm, "\tburst index: %hhu\n", res->ftm.burst_index);
1039 IWL_DEBUG_INFO(mvm, "\tsuccess num: %u\n", res->ftm.num_ftmr_successes);
1040 IWL_DEBUG_INFO(mvm, "\trssi: %d\n", res->ftm.rssi_avg);
1041 IWL_DEBUG_INFO(mvm, "\trssi spread: %hhu\n", res->ftm.rssi_spread);
1042 IWL_DEBUG_INFO(mvm, "\trtt: %lld\n", res->ftm.rtt_avg);
1043 IWL_DEBUG_INFO(mvm, "\trtt var: %llu\n", res->ftm.rtt_variance);
1044 IWL_DEBUG_INFO(mvm, "\trtt spread: %llu\n", res->ftm.rtt_spread);
1045 IWL_DEBUG_INFO(mvm, "\tdistance: %lld\n", rtt_avg);
1046}
1047
1048static void
1049iwl_mvm_ftm_pasn_update_pn(struct iwl_mvm *mvm,
1050 struct iwl_tof_range_rsp_ap_entry_ntfy_v6 *fw_ap)
1051{
1052 struct iwl_mvm_ftm_pasn_entry *entry;
1053
1054 lockdep_assert_held(&mvm->mutex);
1055
1056 list_for_each_entry(entry, &mvm->ftm_initiator.pasn_list, list) {
1057 if (memcmp(fw_ap->bssid, entry->addr, sizeof(entry->addr)))
1058 continue;
1059
1060 memcpy(entry->rx_pn, fw_ap->rx_pn, sizeof(entry->rx_pn));
1061 memcpy(entry->tx_pn, fw_ap->tx_pn, sizeof(entry->tx_pn));
1062 return;
1063 }
1064}
1065
1066static u8 iwl_mvm_ftm_get_range_resp_ver(struct iwl_mvm *mvm)
1067{
1068 if (!fw_has_api(&mvm->fw->ucode_capa,
1069 IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ))
1070 return 5;
1071
1072
1073 if (mvm->cmd_ver.range_resp >= 8)
1074 return mvm->cmd_ver.range_resp;
1075 else if (fw_has_api(&mvm->fw->ucode_capa,
1076 IWL_UCODE_TLV_API_FTM_RTT_ACCURACY))
1077 return 7;
1078
1079
1080 return 6;
1081}
1082
1083static bool iwl_mvm_ftm_resp_size_validation(u8 ver, unsigned int pkt_len)
1084{
1085 switch (ver) {
1086 case 8:
1087 return pkt_len == sizeof(struct iwl_tof_range_rsp_ntfy_v8);
1088 case 7:
1089 return pkt_len == sizeof(struct iwl_tof_range_rsp_ntfy_v7);
1090 case 6:
1091 return pkt_len == sizeof(struct iwl_tof_range_rsp_ntfy_v6);
1092 case 5:
1093 return pkt_len == sizeof(struct iwl_tof_range_rsp_ntfy_v5);
1094 default:
1095 WARN_ONCE(1, "FTM: unsupported range response version %u", ver);
1096 return false;
1097 }
1098}
1099
1100void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
1101{
1102 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1103 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1104 struct iwl_tof_range_rsp_ntfy_v5 *fw_resp_v5 = (void *)pkt->data;
1105 struct iwl_tof_range_rsp_ntfy_v6 *fw_resp_v6 = (void *)pkt->data;
1106 struct iwl_tof_range_rsp_ntfy_v7 *fw_resp_v7 = (void *)pkt->data;
1107 struct iwl_tof_range_rsp_ntfy_v8 *fw_resp_v8 = (void *)pkt->data;
1108 int i;
1109 bool new_api = fw_has_api(&mvm->fw->ucode_capa,
1110 IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ);
1111 u8 num_of_aps, last_in_batch;
1112 u8 notif_ver = iwl_mvm_ftm_get_range_resp_ver(mvm);
1113
1114 lockdep_assert_held(&mvm->mutex);
1115
1116 if (!mvm->ftm_initiator.req) {
1117 return;
1118 }
1119
1120 if (unlikely(!iwl_mvm_ftm_resp_size_validation(notif_ver, pkt_len)))
1121 return;
1122
1123 if (new_api) {
1124 if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp_v8->request_id,
1125 fw_resp_v8->num_of_aps))
1126 return;
1127
1128 num_of_aps = fw_resp_v8->num_of_aps;
1129 last_in_batch = fw_resp_v8->last_report;
1130 } else {
1131 if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp_v5->request_id,
1132 fw_resp_v5->num_of_aps))
1133 return;
1134
1135 num_of_aps = fw_resp_v5->num_of_aps;
1136 last_in_batch = fw_resp_v5->last_in_batch;
1137 }
1138
1139 IWL_DEBUG_INFO(mvm, "Range response received\n");
1140 IWL_DEBUG_INFO(mvm, "request id: %lld, num of entries: %hhu\n",
1141 mvm->ftm_initiator.req->cookie, num_of_aps);
1142
1143 for (i = 0; i < num_of_aps && i < IWL_MVM_TOF_MAX_APS; i++) {
1144 struct cfg80211_pmsr_result result = {};
1145 struct iwl_tof_range_rsp_ap_entry_ntfy_v6 *fw_ap;
1146 int peer_idx;
1147
1148 if (new_api) {
1149 if (notif_ver == 8) {
1150 fw_ap = &fw_resp_v8->ap[i];
1151 iwl_mvm_ftm_pasn_update_pn(mvm, fw_ap);
1152 } else if (notif_ver == 7) {
1153 fw_ap = (void *)&fw_resp_v7->ap[i];
1154 } else {
1155 fw_ap = (void *)&fw_resp_v6->ap[i];
1156 }
1157
1158 result.final = fw_ap->last_burst;
1159 result.ap_tsf = le32_to_cpu(fw_ap->start_tsf);
1160 result.ap_tsf_valid = 1;
1161 } else {
1162
1163 fw_ap = (void *)&fw_resp_v5->ap[i];
1164
1165
1166
1167
1168
1169 result.final = 0;
1170 }
1171
1172 peer_idx = iwl_mvm_ftm_find_peer(mvm->ftm_initiator.req,
1173 fw_ap->bssid);
1174 if (peer_idx < 0) {
1175 IWL_WARN(mvm,
1176 "Unknown address (%pM, target #%d) in FTM response\n",
1177 fw_ap->bssid, i);
1178 continue;
1179 }
1180
1181 switch (fw_ap->measure_status) {
1182 case IWL_TOF_ENTRY_SUCCESS:
1183 result.status = NL80211_PMSR_STATUS_SUCCESS;
1184 break;
1185 case IWL_TOF_ENTRY_TIMING_MEASURE_TIMEOUT:
1186 result.status = NL80211_PMSR_STATUS_TIMEOUT;
1187 break;
1188 case IWL_TOF_ENTRY_NO_RESPONSE:
1189 result.status = NL80211_PMSR_STATUS_FAILURE;
1190 result.ftm.failure_reason =
1191 NL80211_PMSR_FTM_FAILURE_NO_RESPONSE;
1192 break;
1193 case IWL_TOF_ENTRY_REQUEST_REJECTED:
1194 result.status = NL80211_PMSR_STATUS_FAILURE;
1195 result.ftm.failure_reason =
1196 NL80211_PMSR_FTM_FAILURE_PEER_BUSY;
1197 result.ftm.busy_retry_time = fw_ap->refusal_period;
1198 break;
1199 default:
1200 result.status = NL80211_PMSR_STATUS_FAILURE;
1201 result.ftm.failure_reason =
1202 NL80211_PMSR_FTM_FAILURE_UNSPECIFIED;
1203 break;
1204 }
1205 memcpy(result.addr, fw_ap->bssid, ETH_ALEN);
1206 result.host_time = iwl_mvm_ftm_get_host_time(mvm,
1207 fw_ap->timestamp);
1208 result.type = NL80211_PMSR_TYPE_FTM;
1209 result.ftm.burst_index = mvm->ftm_initiator.responses[peer_idx];
1210 mvm->ftm_initiator.responses[peer_idx]++;
1211 result.ftm.rssi_avg = fw_ap->rssi;
1212 result.ftm.rssi_avg_valid = 1;
1213 result.ftm.rssi_spread = fw_ap->rssi_spread;
1214 result.ftm.rssi_spread_valid = 1;
1215 result.ftm.rtt_avg = (s32)le32_to_cpu(fw_ap->rtt);
1216 result.ftm.rtt_avg_valid = 1;
1217 result.ftm.rtt_variance = le32_to_cpu(fw_ap->rtt_variance);
1218 result.ftm.rtt_variance_valid = 1;
1219 result.ftm.rtt_spread = le32_to_cpu(fw_ap->rtt_spread);
1220 result.ftm.rtt_spread_valid = 1;
1221
1222 iwl_mvm_ftm_get_lci_civic(mvm, &result);
1223
1224 iwl_mvm_ftm_rtt_smoothing(mvm, &result);
1225
1226 cfg80211_pmsr_report(mvm->ftm_initiator.req_wdev,
1227 mvm->ftm_initiator.req,
1228 &result, GFP_KERNEL);
1229
1230 if (fw_has_api(&mvm->fw->ucode_capa,
1231 IWL_UCODE_TLV_API_FTM_RTT_ACCURACY))
1232 IWL_DEBUG_INFO(mvm, "RTT confidence: %hhu\n",
1233 fw_ap->rttConfidence);
1234
1235 iwl_mvm_debug_range_resp(mvm, i, &result);
1236 }
1237
1238 if (last_in_batch) {
1239 cfg80211_pmsr_complete(mvm->ftm_initiator.req_wdev,
1240 mvm->ftm_initiator.req,
1241 GFP_KERNEL);
1242 iwl_mvm_ftm_reset(mvm);
1243 }
1244}
1245
1246void iwl_mvm_ftm_lc_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
1247{
1248 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1249 const struct ieee80211_mgmt *mgmt = (void *)pkt->data;
1250 size_t len = iwl_rx_packet_payload_len(pkt);
1251 struct iwl_mvm_loc_entry *entry;
1252 const u8 *ies, *lci, *civic, *msr_ie;
1253 size_t ies_len, lci_len = 0, civic_len = 0;
1254 size_t baselen = IEEE80211_MIN_ACTION_SIZE +
1255 sizeof(mgmt->u.action.u.ftm);
1256 static const u8 rprt_type_lci = IEEE80211_SPCT_MSR_RPRT_TYPE_LCI;
1257 static const u8 rprt_type_civic = IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC;
1258
1259 if (len <= baselen)
1260 return;
1261
1262 lockdep_assert_held(&mvm->mutex);
1263
1264 ies = mgmt->u.action.u.ftm.variable;
1265 ies_len = len - baselen;
1266
1267 msr_ie = cfg80211_find_ie_match(WLAN_EID_MEASURE_REPORT, ies, ies_len,
1268 &rprt_type_lci, 1, 4);
1269 if (msr_ie) {
1270 lci = msr_ie + 2;
1271 lci_len = msr_ie[1];
1272 }
1273
1274 msr_ie = cfg80211_find_ie_match(WLAN_EID_MEASURE_REPORT, ies, ies_len,
1275 &rprt_type_civic, 1, 4);
1276 if (msr_ie) {
1277 civic = msr_ie + 2;
1278 civic_len = msr_ie[1];
1279 }
1280
1281 entry = kmalloc(sizeof(*entry) + lci_len + civic_len, GFP_KERNEL);
1282 if (!entry)
1283 return;
1284
1285 memcpy(entry->addr, mgmt->bssid, ETH_ALEN);
1286
1287 entry->lci_len = lci_len;
1288 if (lci_len)
1289 memcpy(entry->buf, lci, lci_len);
1290
1291 entry->civic_len = civic_len;
1292 if (civic_len)
1293 memcpy(entry->buf + lci_len, civic, civic_len);
1294
1295 list_add_tail(&entry->list, &mvm->ftm_initiator.loc_list);
1296}
1297
