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KVM: clean up directives to compile out irqfds
[thirdparty/kernel/stable.git] / net / mac80211 / debugfs_netdev.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (C) 2020-2023 Intel Corporation
6 */
7
8 #include <linux/kernel.h>
9 #include <linux/device.h>
10 #include <linux/if.h>
11 #include <linux/if_ether.h>
12 #include <linux/interrupt.h>
13 #include <linux/netdevice.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/slab.h>
16 #include <linux/notifier.h>
17 #include <net/mac80211.h>
18 #include <net/cfg80211.h>
19 #include "ieee80211_i.h"
20 #include "rate.h"
21 #include "debugfs.h"
22 #include "debugfs_netdev.h"
23 #include "driver-ops.h"
24
25 static ssize_t ieee80211_if_read_sdata(
26 struct ieee80211_sub_if_data *sdata,
27 char __user *userbuf,
28 size_t count, loff_t *ppos,
29 ssize_t (*format)(const struct ieee80211_sub_if_data *sdata, char *, int))
30 {
31 char buf[200];
32 ssize_t ret = -EINVAL;
33
34 wiphy_lock(sdata->local->hw.wiphy);
35 ret = (*format)(sdata, buf, sizeof(buf));
36 wiphy_unlock(sdata->local->hw.wiphy);
37
38 if (ret >= 0)
39 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
40
41 return ret;
42 }
43
44 static ssize_t ieee80211_if_write_sdata(
45 struct ieee80211_sub_if_data *sdata,
46 const char __user *userbuf,
47 size_t count, loff_t *ppos,
48 ssize_t (*write)(struct ieee80211_sub_if_data *sdata, const char *, int))
49 {
50 char buf[64];
51 ssize_t ret;
52
53 if (count >= sizeof(buf))
54 return -E2BIG;
55
56 if (copy_from_user(buf, userbuf, count))
57 return -EFAULT;
58 buf[count] = '\0';
59
60 wiphy_lock(sdata->local->hw.wiphy);
61 ret = (*write)(sdata, buf, count);
62 wiphy_unlock(sdata->local->hw.wiphy);
63
64 return ret;
65 }
66
67 static ssize_t ieee80211_if_read_link(
68 struct ieee80211_link_data *link,
69 char __user *userbuf,
70 size_t count, loff_t *ppos,
71 ssize_t (*format)(const struct ieee80211_link_data *link, char *, int))
72 {
73 char buf[200];
74 ssize_t ret = -EINVAL;
75
76 wiphy_lock(link->sdata->local->hw.wiphy);
77 ret = (*format)(link, buf, sizeof(buf));
78 wiphy_unlock(link->sdata->local->hw.wiphy);
79
80 if (ret >= 0)
81 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
82
83 return ret;
84 }
85
86 static ssize_t ieee80211_if_write_link(
87 struct ieee80211_link_data *link,
88 const char __user *userbuf,
89 size_t count, loff_t *ppos,
90 ssize_t (*write)(struct ieee80211_link_data *link, const char *, int))
91 {
92 char buf[64];
93 ssize_t ret;
94
95 if (count >= sizeof(buf))
96 return -E2BIG;
97
98 if (copy_from_user(buf, userbuf, count))
99 return -EFAULT;
100 buf[count] = '\0';
101
102 wiphy_lock(link->sdata->local->hw.wiphy);
103 ret = (*write)(link, buf, count);
104 wiphy_unlock(link->sdata->local->hw.wiphy);
105
106 return ret;
107 }
108
109 #define IEEE80211_IF_FMT(name, type, field, format_string) \
110 static ssize_t ieee80211_if_fmt_##name( \
111 const type *data, char *buf, \
112 int buflen) \
113 { \
114 return scnprintf(buf, buflen, format_string, data->field); \
115 }
116 #define IEEE80211_IF_FMT_DEC(name, type, field) \
117 IEEE80211_IF_FMT(name, type, field, "%d\n")
118 #define IEEE80211_IF_FMT_HEX(name, type, field) \
119 IEEE80211_IF_FMT(name, type, field, "%#x\n")
120 #define IEEE80211_IF_FMT_LHEX(name, type, field) \
121 IEEE80211_IF_FMT(name, type, field, "%#lx\n")
122
123 #define IEEE80211_IF_FMT_HEXARRAY(name, type, field) \
124 static ssize_t ieee80211_if_fmt_##name( \
125 const type *data, \
126 char *buf, int buflen) \
127 { \
128 char *p = buf; \
129 int i; \
130 for (i = 0; i < sizeof(data->field); i++) { \
131 p += scnprintf(p, buflen + buf - p, "%.2x ", \
132 data->field[i]); \
133 } \
134 p += scnprintf(p, buflen + buf - p, "\n"); \
135 return p - buf; \
136 }
137
138 #define IEEE80211_IF_FMT_ATOMIC(name, type, field) \
139 static ssize_t ieee80211_if_fmt_##name( \
140 const type *data, \
141 char *buf, int buflen) \
142 { \
143 return scnprintf(buf, buflen, "%d\n", atomic_read(&data->field));\
144 }
145
146 #define IEEE80211_IF_FMT_MAC(name, type, field) \
147 static ssize_t ieee80211_if_fmt_##name( \
148 const type *data, char *buf, \
149 int buflen) \
150 { \
151 return scnprintf(buf, buflen, "%pM\n", data->field); \
152 }
153
154 #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, type, field) \
155 static ssize_t ieee80211_if_fmt_##name( \
156 const type *data, \
157 char *buf, int buflen) \
158 { \
159 return scnprintf(buf, buflen, "%d\n", \
160 jiffies_to_msecs(data->field)); \
161 }
162
163 #define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
164 static const struct file_operations name##_ops = { \
165 .read = (_read), \
166 .write = (_write), \
167 .open = simple_open, \
168 .llseek = generic_file_llseek, \
169 }
170
171 #define _IEEE80211_IF_FILE_R_FN(name) \
172 static ssize_t ieee80211_if_read_##name(struct file *file, \
173 char __user *userbuf, \
174 size_t count, loff_t *ppos) \
175 { \
176 return ieee80211_if_read_sdata(file->private_data, \
177 userbuf, count, ppos, \
178 ieee80211_if_fmt_##name); \
179 }
180
181 #define _IEEE80211_IF_FILE_W_FN(name) \
182 static ssize_t ieee80211_if_write_##name(struct file *file, \
183 const char __user *userbuf, \
184 size_t count, loff_t *ppos) \
185 { \
186 return ieee80211_if_write_sdata(file->private_data, userbuf, \
187 count, ppos, \
188 ieee80211_if_parse_##name); \
189 }
190
191 #define IEEE80211_IF_FILE_R(name) \
192 _IEEE80211_IF_FILE_R_FN(name) \
193 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
194
195 #define IEEE80211_IF_FILE_W(name) \
196 _IEEE80211_IF_FILE_W_FN(name) \
197 _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
198
199 #define IEEE80211_IF_FILE_RW(name) \
200 _IEEE80211_IF_FILE_R_FN(name) \
201 _IEEE80211_IF_FILE_W_FN(name) \
202 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \
203 ieee80211_if_write_##name)
204
205 #define IEEE80211_IF_FILE(name, field, format) \
206 IEEE80211_IF_FMT_##format(name, struct ieee80211_sub_if_data, field) \
207 IEEE80211_IF_FILE_R(name)
208
209 #define _IEEE80211_IF_LINK_R_FN(name) \
210 static ssize_t ieee80211_if_read_##name(struct file *file, \
211 char __user *userbuf, \
212 size_t count, loff_t *ppos) \
213 { \
214 return ieee80211_if_read_link(file->private_data, \
215 userbuf, count, ppos, \
216 ieee80211_if_fmt_##name); \
217 }
218
219 #define _IEEE80211_IF_LINK_W_FN(name) \
220 static ssize_t ieee80211_if_write_##name(struct file *file, \
221 const char __user *userbuf, \
222 size_t count, loff_t *ppos) \
223 { \
224 return ieee80211_if_write_link(file->private_data, userbuf, \
225 count, ppos, \
226 ieee80211_if_parse_##name); \
227 }
228
229 #define IEEE80211_IF_LINK_FILE_R(name) \
230 _IEEE80211_IF_LINK_R_FN(name) \
231 _IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, NULL)
232
233 #define IEEE80211_IF_LINK_FILE_W(name) \
234 _IEEE80211_IF_LINK_W_FN(name) \
235 _IEEE80211_IF_FILE_OPS(link_##name, NULL, ieee80211_if_write_##name)
236
237 #define IEEE80211_IF_LINK_FILE_RW(name) \
238 _IEEE80211_IF_LINK_R_FN(name) \
239 _IEEE80211_IF_LINK_W_FN(name) \
240 _IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, \
241 ieee80211_if_write_##name)
242
243 #define IEEE80211_IF_LINK_FILE(name, field, format) \
244 IEEE80211_IF_FMT_##format(name, struct ieee80211_link_data, field) \
245 IEEE80211_IF_LINK_FILE_R(name)
246
247 /* common attributes */
248 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
249 HEX);
250 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
251 HEX);
252 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
253 rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
254 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
255 rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
256
257 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
258 const struct ieee80211_sub_if_data *sdata,
259 char *buf, int buflen)
260 {
261 int i, len = 0;
262 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
263
264 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
265 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
266 len += scnprintf(buf + len, buflen - len, "\n");
267
268 return len;
269 }
270
271 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
272
273 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
274 const struct ieee80211_sub_if_data *sdata,
275 char *buf, int buflen)
276 {
277 int i, len = 0;
278 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
279
280 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
281 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
282 len += scnprintf(buf + len, buflen - len, "\n");
283
284 return len;
285 }
286
287 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
288
289 IEEE80211_IF_FILE(flags, flags, HEX);
290 IEEE80211_IF_FILE(state, state, LHEX);
291 IEEE80211_IF_LINK_FILE(txpower, conf->txpower, DEC);
292 IEEE80211_IF_LINK_FILE(ap_power_level, ap_power_level, DEC);
293 IEEE80211_IF_LINK_FILE(user_power_level, user_power_level, DEC);
294
295 static ssize_t
296 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
297 char *buf, int buflen)
298 {
299 int len;
300
301 len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
302 sdata->vif.hw_queue[IEEE80211_AC_VO],
303 sdata->vif.hw_queue[IEEE80211_AC_VI],
304 sdata->vif.hw_queue[IEEE80211_AC_BE],
305 sdata->vif.hw_queue[IEEE80211_AC_BK]);
306
307 if (sdata->vif.type == NL80211_IFTYPE_AP)
308 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
309 sdata->vif.cab_queue);
310
311 return len;
312 }
313 IEEE80211_IF_FILE_R(hw_queues);
314
315 /* STA attributes */
316 IEEE80211_IF_FILE(bssid, deflink.u.mgd.bssid, MAC);
317 IEEE80211_IF_FILE(aid, vif.cfg.aid, DEC);
318 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
319
320 static int ieee80211_set_smps(struct ieee80211_link_data *link,
321 enum ieee80211_smps_mode smps_mode)
322 {
323 struct ieee80211_sub_if_data *sdata = link->sdata;
324 struct ieee80211_local *local = sdata->local;
325
326 /* The driver indicated that EML is enabled for the interface, thus do
327 * not allow to override the SMPS state.
328 */
329 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
330 return -EOPNOTSUPP;
331
332 if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
333 smps_mode == IEEE80211_SMPS_STATIC)
334 return -EINVAL;
335
336 /* auto should be dynamic if in PS mode */
337 if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
338 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
339 smps_mode == IEEE80211_SMPS_AUTOMATIC))
340 return -EINVAL;
341
342 if (sdata->vif.type != NL80211_IFTYPE_STATION)
343 return -EOPNOTSUPP;
344
345 return __ieee80211_request_smps_mgd(link->sdata, link, smps_mode);
346 }
347
348 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
349 [IEEE80211_SMPS_AUTOMATIC] = "auto",
350 [IEEE80211_SMPS_OFF] = "off",
351 [IEEE80211_SMPS_STATIC] = "static",
352 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
353 };
354
355 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_link_data *link,
356 char *buf, int buflen)
357 {
358 if (link->sdata->vif.type == NL80211_IFTYPE_STATION)
359 return snprintf(buf, buflen, "request: %s\nused: %s\n",
360 smps_modes[link->u.mgd.req_smps],
361 smps_modes[link->smps_mode]);
362 return -EINVAL;
363 }
364
365 static ssize_t ieee80211_if_parse_smps(struct ieee80211_link_data *link,
366 const char *buf, int buflen)
367 {
368 enum ieee80211_smps_mode mode;
369
370 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
371 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
372 int err = ieee80211_set_smps(link, mode);
373 if (!err)
374 return buflen;
375 return err;
376 }
377 }
378
379 return -EINVAL;
380 }
381 IEEE80211_IF_LINK_FILE_RW(smps);
382
383 static ssize_t ieee80211_if_parse_tkip_mic_test(
384 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
385 {
386 struct ieee80211_local *local = sdata->local;
387 u8 addr[ETH_ALEN];
388 struct sk_buff *skb;
389 struct ieee80211_hdr *hdr;
390 __le16 fc;
391
392 if (!mac_pton(buf, addr))
393 return -EINVAL;
394
395 if (!ieee80211_sdata_running(sdata))
396 return -ENOTCONN;
397
398 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
399 if (!skb)
400 return -ENOMEM;
401 skb_reserve(skb, local->hw.extra_tx_headroom);
402
403 hdr = skb_put_zero(skb, 24);
404 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
405
406 switch (sdata->vif.type) {
407 case NL80211_IFTYPE_AP:
408 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
409 /* DA BSSID SA */
410 memcpy(hdr->addr1, addr, ETH_ALEN);
411 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
412 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
413 break;
414 case NL80211_IFTYPE_STATION:
415 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
416 /* BSSID SA DA */
417 if (!sdata->u.mgd.associated) {
418 dev_kfree_skb(skb);
419 return -ENOTCONN;
420 }
421 memcpy(hdr->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN);
422 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
423 memcpy(hdr->addr3, addr, ETH_ALEN);
424 break;
425 default:
426 dev_kfree_skb(skb);
427 return -EOPNOTSUPP;
428 }
429 hdr->frame_control = fc;
430
431 /*
432 * Add some length to the test frame to make it look bit more valid.
433 * The exact contents does not matter since the recipient is required
434 * to drop this because of the Michael MIC failure.
435 */
436 skb_put_zero(skb, 50);
437
438 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
439
440 ieee80211_tx_skb(sdata, skb);
441
442 return buflen;
443 }
444 IEEE80211_IF_FILE_W(tkip_mic_test);
445
446 static ssize_t ieee80211_if_parse_beacon_loss(
447 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
448 {
449 if (!ieee80211_sdata_running(sdata) || !sdata->vif.cfg.assoc)
450 return -ENOTCONN;
451
452 ieee80211_beacon_loss(&sdata->vif);
453
454 return buflen;
455 }
456 IEEE80211_IF_FILE_W(beacon_loss);
457
458 static ssize_t ieee80211_if_fmt_uapsd_queues(
459 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
460 {
461 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
462
463 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
464 }
465
466 static ssize_t ieee80211_if_parse_uapsd_queues(
467 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
468 {
469 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
470 u8 val;
471 int ret;
472
473 ret = kstrtou8(buf, 0, &val);
474 if (ret)
475 return ret;
476
477 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
478 return -ERANGE;
479
480 ifmgd->uapsd_queues = val;
481
482 return buflen;
483 }
484 IEEE80211_IF_FILE_RW(uapsd_queues);
485
486 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
487 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
488 {
489 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
490
491 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
492 }
493
494 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
495 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
496 {
497 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
498 unsigned long val;
499 int ret;
500
501 ret = kstrtoul(buf, 0, &val);
502 if (ret)
503 return -EINVAL;
504
505 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
506 return -ERANGE;
507
508 ifmgd->uapsd_max_sp_len = val;
509
510 return buflen;
511 }
512 IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
513
514 static ssize_t ieee80211_if_fmt_tdls_wider_bw(
515 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
516 {
517 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
518 bool tdls_wider_bw;
519
520 tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
521 !ifmgd->tdls_wider_bw_prohibited;
522
523 return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
524 }
525
526 static ssize_t ieee80211_if_parse_tdls_wider_bw(
527 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
528 {
529 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
530 u8 val;
531 int ret;
532
533 ret = kstrtou8(buf, 0, &val);
534 if (ret)
535 return ret;
536
537 ifmgd->tdls_wider_bw_prohibited = !val;
538 return buflen;
539 }
540 IEEE80211_IF_FILE_RW(tdls_wider_bw);
541
542 /* AP attributes */
543 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
544 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
545 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
546 IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
547
548 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
549 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
550 {
551 return scnprintf(buf, buflen, "%u\n",
552 skb_queue_len(&sdata->u.ap.ps.bc_buf));
553 }
554 IEEE80211_IF_FILE_R(num_buffered_multicast);
555
556 static ssize_t ieee80211_if_fmt_aqm(
557 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
558 {
559 struct ieee80211_local *local = sdata->local;
560 struct txq_info *txqi;
561 int len;
562
563 if (!sdata->vif.txq)
564 return 0;
565
566 txqi = to_txq_info(sdata->vif.txq);
567
568 spin_lock_bh(&local->fq.lock);
569 rcu_read_lock();
570
571 len = scnprintf(buf,
572 buflen,
573 "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
574 "%u %u %u %u %u %u %u %u %u %u\n",
575 txqi->txq.ac,
576 txqi->tin.backlog_bytes,
577 txqi->tin.backlog_packets,
578 txqi->tin.flows,
579 txqi->cstats.drop_count,
580 txqi->cstats.ecn_mark,
581 txqi->tin.overlimit,
582 txqi->tin.collisions,
583 txqi->tin.tx_bytes,
584 txqi->tin.tx_packets);
585
586 rcu_read_unlock();
587 spin_unlock_bh(&local->fq.lock);
588
589 return len;
590 }
591 IEEE80211_IF_FILE_R(aqm);
592
593 IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
594
595 /* IBSS attributes */
596 static ssize_t ieee80211_if_fmt_tsf(
597 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
598 {
599 struct ieee80211_local *local = sdata->local;
600 u64 tsf;
601
602 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
603
604 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
605 }
606
607 static ssize_t ieee80211_if_parse_tsf(
608 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
609 {
610 struct ieee80211_local *local = sdata->local;
611 unsigned long long tsf;
612 int ret;
613 int tsf_is_delta = 0;
614
615 if (strncmp(buf, "reset", 5) == 0) {
616 if (local->ops->reset_tsf) {
617 drv_reset_tsf(local, sdata);
618 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
619 }
620 } else {
621 if (buflen > 10 && buf[1] == '=') {
622 if (buf[0] == '+')
623 tsf_is_delta = 1;
624 else if (buf[0] == '-')
625 tsf_is_delta = -1;
626 else
627 return -EINVAL;
628 buf += 2;
629 }
630 ret = kstrtoull(buf, 10, &tsf);
631 if (ret < 0)
632 return ret;
633 if (tsf_is_delta && local->ops->offset_tsf) {
634 drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
635 wiphy_info(local->hw.wiphy,
636 "debugfs offset TSF by %018lld\n",
637 tsf_is_delta * tsf);
638 } else if (local->ops->set_tsf) {
639 if (tsf_is_delta)
640 tsf = drv_get_tsf(local, sdata) +
641 tsf_is_delta * tsf;
642 drv_set_tsf(local, sdata, tsf);
643 wiphy_info(local->hw.wiphy,
644 "debugfs set TSF to %#018llx\n", tsf);
645 }
646 }
647
648 ieee80211_recalc_dtim(local, sdata);
649 return buflen;
650 }
651 IEEE80211_IF_FILE_RW(tsf);
652
653 static ssize_t ieee80211_if_fmt_valid_links(const struct ieee80211_sub_if_data *sdata,
654 char *buf, int buflen)
655 {
656 return snprintf(buf, buflen, "0x%x\n", sdata->vif.valid_links);
657 }
658 IEEE80211_IF_FILE_R(valid_links);
659
660 static ssize_t ieee80211_if_fmt_active_links(const struct ieee80211_sub_if_data *sdata,
661 char *buf, int buflen)
662 {
663 return snprintf(buf, buflen, "0x%x\n", sdata->vif.active_links);
664 }
665
666 static ssize_t ieee80211_if_parse_active_links(struct ieee80211_sub_if_data *sdata,
667 const char *buf, int buflen)
668 {
669 u16 active_links;
670
671 if (kstrtou16(buf, 0, &active_links))
672 return -EINVAL;
673
674 return ieee80211_set_active_links(&sdata->vif, active_links) ?: buflen;
675 }
676 IEEE80211_IF_FILE_RW(active_links);
677
678 IEEE80211_IF_LINK_FILE(addr, conf->addr, MAC);
679
680 #ifdef CONFIG_MAC80211_MESH
681 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
682
683 /* Mesh stats attributes */
684 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
685 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
686 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
687 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
688 IEEE80211_IF_FILE(dropped_frames_no_route,
689 u.mesh.mshstats.dropped_frames_no_route, DEC);
690
691 /* Mesh parameters */
692 IEEE80211_IF_FILE(dot11MeshMaxRetries,
693 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
694 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
695 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
696 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
697 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
698 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
699 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
700 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
701 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
702 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
703 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
704 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
705 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
706 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
707 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
708 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
709 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
710 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
711 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
712 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
713 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
714 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
715 IEEE80211_IF_FILE(path_refresh_time,
716 u.mesh.mshcfg.path_refresh_time, DEC);
717 IEEE80211_IF_FILE(min_discovery_timeout,
718 u.mesh.mshcfg.min_discovery_timeout, DEC);
719 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
720 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
721 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
722 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
723 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
724 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
725 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
726 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
727 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
728 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
729 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
730 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
731 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
732 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
733 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
734 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
735 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
736 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
737 IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
738 u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
739 IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
740 IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
741 u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
742 #endif
743
744 #define DEBUGFS_ADD_MODE(name, mode) \
745 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
746 sdata, &name##_ops)
747
748 #define DEBUGFS_ADD_X(_bits, _name, _mode) \
749 debugfs_create_x##_bits(#_name, _mode, sdata->vif.debugfs_dir, \
750 &sdata->vif._name)
751
752 #define DEBUGFS_ADD_X8(_name, _mode) \
753 DEBUGFS_ADD_X(8, _name, _mode)
754
755 #define DEBUGFS_ADD_X16(_name, _mode) \
756 DEBUGFS_ADD_X(16, _name, _mode)
757
758 #define DEBUGFS_ADD_X32(_name, _mode) \
759 DEBUGFS_ADD_X(32, _name, _mode)
760
761 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
762
763 static void add_common_files(struct ieee80211_sub_if_data *sdata)
764 {
765 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
766 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
767 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
768 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
769 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
770 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
771 DEBUGFS_ADD(hw_queues);
772
773 if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
774 sdata->vif.type != NL80211_IFTYPE_NAN)
775 DEBUGFS_ADD(aqm);
776 }
777
778 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
779 {
780 DEBUGFS_ADD(bssid);
781 DEBUGFS_ADD(aid);
782 DEBUGFS_ADD(beacon_timeout);
783 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
784 DEBUGFS_ADD_MODE(beacon_loss, 0200);
785 DEBUGFS_ADD_MODE(uapsd_queues, 0600);
786 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
787 DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
788 DEBUGFS_ADD_MODE(valid_links, 0400);
789 DEBUGFS_ADD_MODE(active_links, 0600);
790 DEBUGFS_ADD_X16(dormant_links, 0400);
791 }
792
793 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
794 {
795 DEBUGFS_ADD(num_mcast_sta);
796 DEBUGFS_ADD(num_sta_ps);
797 DEBUGFS_ADD(dtim_count);
798 DEBUGFS_ADD(num_buffered_multicast);
799 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
800 DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
801 }
802
803 static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
804 {
805 /* add num_mcast_sta_vlan using name num_mcast_sta */
806 debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
807 sdata, &num_mcast_sta_vlan_ops);
808 }
809
810 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
811 {
812 DEBUGFS_ADD_MODE(tsf, 0600);
813 }
814
815 #ifdef CONFIG_MAC80211_MESH
816
817 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
818 {
819 DEBUGFS_ADD_MODE(tsf, 0600);
820 DEBUGFS_ADD_MODE(estab_plinks, 0400);
821 }
822
823 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
824 {
825 struct dentry *dir = debugfs_create_dir("mesh_stats",
826 sdata->vif.debugfs_dir);
827 #define MESHSTATS_ADD(name)\
828 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops)
829
830 MESHSTATS_ADD(fwded_mcast);
831 MESHSTATS_ADD(fwded_unicast);
832 MESHSTATS_ADD(fwded_frames);
833 MESHSTATS_ADD(dropped_frames_ttl);
834 MESHSTATS_ADD(dropped_frames_no_route);
835 #undef MESHSTATS_ADD
836 }
837
838 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
839 {
840 struct dentry *dir = debugfs_create_dir("mesh_config",
841 sdata->vif.debugfs_dir);
842
843 #define MESHPARAMS_ADD(name) \
844 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops)
845
846 MESHPARAMS_ADD(dot11MeshMaxRetries);
847 MESHPARAMS_ADD(dot11MeshRetryTimeout);
848 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
849 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
850 MESHPARAMS_ADD(dot11MeshTTL);
851 MESHPARAMS_ADD(element_ttl);
852 MESHPARAMS_ADD(auto_open_plinks);
853 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
854 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
855 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
856 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
857 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
858 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
859 MESHPARAMS_ADD(path_refresh_time);
860 MESHPARAMS_ADD(min_discovery_timeout);
861 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
862 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
863 MESHPARAMS_ADD(dot11MeshForwarding);
864 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
865 MESHPARAMS_ADD(rssi_threshold);
866 MESHPARAMS_ADD(ht_opmode);
867 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
868 MESHPARAMS_ADD(dot11MeshHWMProotInterval);
869 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
870 MESHPARAMS_ADD(power_mode);
871 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
872 MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
873 MESHPARAMS_ADD(dot11MeshNolearn);
874 MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
875 #undef MESHPARAMS_ADD
876 }
877 #endif
878
879 static void add_files(struct ieee80211_sub_if_data *sdata)
880 {
881 if (!sdata->vif.debugfs_dir)
882 return;
883
884 DEBUGFS_ADD(flags);
885 DEBUGFS_ADD(state);
886
887 if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
888 add_common_files(sdata);
889
890 switch (sdata->vif.type) {
891 case NL80211_IFTYPE_MESH_POINT:
892 #ifdef CONFIG_MAC80211_MESH
893 add_mesh_files(sdata);
894 add_mesh_stats(sdata);
895 add_mesh_config(sdata);
896 #endif
897 break;
898 case NL80211_IFTYPE_STATION:
899 add_sta_files(sdata);
900 break;
901 case NL80211_IFTYPE_ADHOC:
902 add_ibss_files(sdata);
903 break;
904 case NL80211_IFTYPE_AP:
905 add_ap_files(sdata);
906 break;
907 case NL80211_IFTYPE_AP_VLAN:
908 add_vlan_files(sdata);
909 break;
910 default:
911 break;
912 }
913 }
914
915 #undef DEBUGFS_ADD_MODE
916 #undef DEBUGFS_ADD
917
918 #define DEBUGFS_ADD_MODE(dentry, name, mode) \
919 debugfs_create_file(#name, mode, dentry, \
920 link, &link_##name##_ops)
921
922 #define DEBUGFS_ADD(dentry, name) DEBUGFS_ADD_MODE(dentry, name, 0400)
923
924 static void add_link_files(struct ieee80211_link_data *link,
925 struct dentry *dentry)
926 {
927 DEBUGFS_ADD(dentry, txpower);
928 DEBUGFS_ADD(dentry, user_power_level);
929 DEBUGFS_ADD(dentry, ap_power_level);
930
931 switch (link->sdata->vif.type) {
932 case NL80211_IFTYPE_STATION:
933 DEBUGFS_ADD_MODE(dentry, smps, 0600);
934 break;
935 default:
936 break;
937 }
938 }
939
940 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata,
941 bool mld_vif)
942 {
943 char buf[10+IFNAMSIZ];
944
945 sprintf(buf, "netdev:%s", sdata->name);
946 sdata->vif.debugfs_dir = debugfs_create_dir(buf,
947 sdata->local->hw.wiphy->debugfsdir);
948 /* deflink also has this */
949 sdata->deflink.debugfs_dir = sdata->vif.debugfs_dir;
950 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
951 sdata->vif.debugfs_dir);
952 add_files(sdata);
953 if (!mld_vif)
954 add_link_files(&sdata->deflink, sdata->vif.debugfs_dir);
955 }
956
957 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
958 {
959 if (!sdata->vif.debugfs_dir)
960 return;
961
962 debugfs_remove_recursive(sdata->vif.debugfs_dir);
963 sdata->vif.debugfs_dir = NULL;
964 sdata->debugfs.subdir_stations = NULL;
965 }
966
967 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
968 {
969 struct dentry *dir;
970 char buf[10 + IFNAMSIZ];
971
972 dir = sdata->vif.debugfs_dir;
973
974 if (IS_ERR_OR_NULL(dir))
975 return;
976
977 sprintf(buf, "netdev:%s", sdata->name);
978 debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
979 }
980
981 void ieee80211_debugfs_recreate_netdev(struct ieee80211_sub_if_data *sdata,
982 bool mld_vif)
983 {
984 ieee80211_debugfs_remove_netdev(sdata);
985 ieee80211_debugfs_add_netdev(sdata, mld_vif);
986 drv_vif_add_debugfs(sdata->local, sdata);
987 if (!mld_vif)
988 ieee80211_link_debugfs_drv_add(&sdata->deflink);
989 }
990
991 void ieee80211_link_debugfs_add(struct ieee80211_link_data *link)
992 {
993 char link_dir_name[10];
994
995 if (WARN_ON(!link->sdata->vif.debugfs_dir || link->debugfs_dir))
996 return;
997
998 /* For now, this should not be called for non-MLO capable drivers */
999 if (WARN_ON(!(link->sdata->local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)))
1000 return;
1001
1002 snprintf(link_dir_name, sizeof(link_dir_name),
1003 "link-%d", link->link_id);
1004
1005 link->debugfs_dir =
1006 debugfs_create_dir(link_dir_name,
1007 link->sdata->vif.debugfs_dir);
1008
1009 DEBUGFS_ADD(link->debugfs_dir, addr);
1010 add_link_files(link, link->debugfs_dir);
1011 }
1012
1013 void ieee80211_link_debugfs_remove(struct ieee80211_link_data *link)
1014 {
1015 if (!link->sdata->vif.debugfs_dir || !link->debugfs_dir) {
1016 link->debugfs_dir = NULL;
1017 return;
1018 }
1019
1020 if (link->debugfs_dir == link->sdata->vif.debugfs_dir) {
1021 WARN_ON(link != &link->sdata->deflink);
1022 link->debugfs_dir = NULL;
1023 return;
1024 }
1025
1026 debugfs_remove_recursive(link->debugfs_dir);
1027 link->debugfs_dir = NULL;
1028 }
1029
1030 void ieee80211_link_debugfs_drv_add(struct ieee80211_link_data *link)
1031 {
1032 if (link->sdata->vif.type == NL80211_IFTYPE_MONITOR ||
1033 WARN_ON(!link->debugfs_dir))
1034 return;
1035
1036 drv_link_add_debugfs(link->sdata->local, link->sdata,
1037 link->conf, link->debugfs_dir);
1038 }
1039
1040 void ieee80211_link_debugfs_drv_remove(struct ieee80211_link_data *link)
1041 {
1042 if (!link || !link->debugfs_dir)
1043 return;
1044
1045 if (WARN_ON(link->debugfs_dir == link->sdata->vif.debugfs_dir))
1046 return;
1047
1048 /* Recreate the directory excluding the driver data */
1049 debugfs_remove_recursive(link->debugfs_dir);
1050 link->debugfs_dir = NULL;
1051
1052 ieee80211_link_debugfs_add(link);
1053 }
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