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wifi: mac80211: RCU-ify link/link_conf pointers
[linux-block.git] / net / mac80211 / debugfs_netdev.c
CommitLineData
d2912cb1 1// SPDX-License-Identifier: GPL-2.0-only
e9f207f0
JB		 2/*
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
f276e20b 5 * Copyright (C) 2020-2022 Intel Corporation
e9f207f0
JB		 6 */
7
8#include <linux/kernel.h>
9#include <linux/device.h>
10#include <linux/if.h>
28656a11 11#include <linux/if_ether.h>
e9f207f0
JB		 12#include <linux/interrupt.h>
13#include <linux/netdevice.h>
14#include <linux/rtnetlink.h>
5a0e3ad6 15#include <linux/slab.h>
e9f207f0
JB		 16#include <linux/notifier.h>
17#include <net/mac80211.h>
18#include <net/cfg80211.h>
19#include "ieee80211_i.h"
2c8dccc7 20#include "rate.h"
e9f207f0
JB		 21#include "debugfs.h"
22#include "debugfs_netdev.h"
37a41b4a 23#include "driver-ops.h"
e9f207f0
JB		 24
25static ssize_t ieee80211_if_read(
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 *, char *, int))
30{
8d51dbb8 31 char buf[200];
e9f207f0
JB		 32 ssize_t ret = -EINVAL;
33
34 read_lock(&dev_base_lock);
923eaf36 35 ret = (*format)(sdata, buf, sizeof(buf));
e9f207f0 36 read_unlock(&dev_base_lock);
73bb3e4a 37
681d1190 38 if (ret >= 0)
73bb3e4a
LCC		 39 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
40
e9f207f0
JB		 41 return ret;
42}
43
0f78231b
JB		 44static ssize_t ieee80211_if_write(
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 *, const char *, int))
49{
ada577c1 50 char buf[64];
51f5f8ca 51 ssize_t ret;
0f78231b 52
ada577c1
EP		 53 if (count >= sizeof(buf))
54 return -E2BIG;
0f78231b
JB		 55
56 if (copy_from_user(buf, userbuf, count))
ada577c1
EP		 57 return -EFAULT;
58 buf[count] = '\0';
0f78231b
JB		 59
60 rtnl_lock();
923eaf36 61 ret = (*write)(sdata, buf, count);
0f78231b
JB		 62 rtnl_unlock();
63
64 return ret;
65}
66
e9f207f0
JB		 67#define IEEE80211_IF_FMT(name, field, format_string) \
68static ssize_t ieee80211_if_fmt_##name( \
69 const struct ieee80211_sub_if_data *sdata, char *buf, \
70 int buflen) \
71{ \
72 return scnprintf(buf, buflen, format_string, sdata->field); \
73}
74#define IEEE80211_IF_FMT_DEC(name, field) \
75 IEEE80211_IF_FMT(name, field, "%d\n")
76#define IEEE80211_IF_FMT_HEX(name, field) \
77 IEEE80211_IF_FMT(name, field, "%#x\n")
4914b3bb
BG		 78#define IEEE80211_IF_FMT_LHEX(name, field) \
79 IEEE80211_IF_FMT(name, field, "%#lx\n")
e9f207f0 80
19468413
SW		 81#define IEEE80211_IF_FMT_HEXARRAY(name, field) \
82static ssize_t ieee80211_if_fmt_##name( \
83 const struct ieee80211_sub_if_data *sdata, \
84 char *buf, int buflen) \
85{ \
86 char *p = buf; \
87 int i; \
88 for (i = 0; i < sizeof(sdata->field); i++) { \
89 p += scnprintf(p, buflen + buf - p, "%.2x ", \
90 sdata->field[i]); \
91 } \
92 p += scnprintf(p, buflen + buf - p, "\n"); \
93 return p - buf; \
94}
95
e9f207f0
JB		 96#define IEEE80211_IF_FMT_ATOMIC(name, field) \
97static ssize_t ieee80211_if_fmt_##name( \
98 const struct ieee80211_sub_if_data *sdata, \
99 char *buf, int buflen) \
100{ \
101 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
102}
103
104#define IEEE80211_IF_FMT_MAC(name, field) \
105static ssize_t ieee80211_if_fmt_##name( \
106 const struct ieee80211_sub_if_data *sdata, char *buf, \
107 int buflen) \
108{ \
0c68ae26 109 return scnprintf(buf, buflen, "%pM\n", sdata->field); \
e9f207f0
JB		 110}
111
78e443e4
BG		 112#define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \
113static ssize_t ieee80211_if_fmt_##name( \
114 const struct ieee80211_sub_if_data *sdata, \
115 char *buf, int buflen) \
116{ \
117 return scnprintf(buf, buflen, "%d\n", \
118 jiffies_to_msecs(sdata->field)); \
119}
120
4cd3c4ec
JB		 121#define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
122static const struct file_operations name##_ops = { \
123 .read = (_read), \
124 .write = (_write), \
125 .open = simple_open, \
126 .llseek = generic_file_llseek, \
127}
128
129#define _IEEE80211_IF_FILE_R_FN(name) \
e9f207f0
JB		 130static ssize_t ieee80211_if_read_##name(struct file *file, \
131 char __user *userbuf, \
132 size_t count, loff_t *ppos) \
133{ \
134 return ieee80211_if_read(file->private_data, \
135 userbuf, count, ppos, \
136 ieee80211_if_fmt_##name); \
e9f207f0
JB		 137}
138
4cd3c4ec 139#define _IEEE80211_IF_FILE_W_FN(name) \
0f78231b
JB		 140static ssize_t ieee80211_if_write_##name(struct file *file, \
141 const char __user *userbuf, \
142 size_t count, loff_t *ppos) \
143{ \
144 return ieee80211_if_write(file->private_data, userbuf, count, \
145 ppos, ieee80211_if_parse_##name); \
4cd3c4ec
JB		 146}
147
148#define IEEE80211_IF_FILE_R(name) \
149 _IEEE80211_IF_FILE_R_FN(name) \
150 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
151
152#define IEEE80211_IF_FILE_W(name) \
153 _IEEE80211_IF_FILE_W_FN(name) \
154 _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
0f78231b 155
4cd3c4ec
JB		 156#define IEEE80211_IF_FILE_RW(name) \
157 _IEEE80211_IF_FILE_R_FN(name) \
158 _IEEE80211_IF_FILE_W_FN(name) \
159 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \
160 ieee80211_if_write_##name)
0f78231b 161
e9f207f0 162#define IEEE80211_IF_FILE(name, field, format) \
4cd3c4ec
JB		 163 IEEE80211_IF_FMT_##format(name, field) \
164 IEEE80211_IF_FILE_R(name)
e9f207f0
JB		 165
166/* common attributes */
57fbcce3 167IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
37eb0b16 168 HEX);
57fbcce3 169IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
37eb0b16 170 HEX);
19468413 171IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
57fbcce3 172 rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
19468413 173IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
57fbcce3 174 rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
19468413 175
b119ad6e
LB		 176static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
177 const struct ieee80211_sub_if_data *sdata,
178 char *buf, int buflen)
179{
180 int i, len = 0;
57fbcce3 181 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
b119ad6e
LB		 182
183 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
184 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
185 len += scnprintf(buf + len, buflen - len, "\n");
186
187 return len;
188}
189
190IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
191
192static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
193 const struct ieee80211_sub_if_data *sdata,
194 char *buf, int buflen)
195{
196 int i, len = 0;
57fbcce3 197 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
b119ad6e
LB		 198
199 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
200 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
201 len += scnprintf(buf + len, buflen - len, "\n");
202
203 return len;
204}
205
206IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
207
4914b3bb
BG		 208IEEE80211_IF_FILE(flags, flags, HEX);
209IEEE80211_IF_FILE(state, state, LHEX);
1ea6f9c0 210IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
bfd8403a
JB		 211IEEE80211_IF_FILE(ap_power_level, deflink.ap_power_level, DEC);
212IEEE80211_IF_FILE(user_power_level, deflink.user_power_level, DEC);
e9f207f0 213
08643315
JB		 214static ssize_t
215ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
216 char *buf, int buflen)
217{
218 int len;
219
220 len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
221 sdata->vif.hw_queue[IEEE80211_AC_VO],
222 sdata->vif.hw_queue[IEEE80211_AC_VI],
223 sdata->vif.hw_queue[IEEE80211_AC_BE],
224 sdata->vif.hw_queue[IEEE80211_AC_BK]);
225
226 if (sdata->vif.type == NL80211_IFTYPE_AP)
227 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
228 sdata->vif.cab_queue);
229
230 return len;
231}
4cd3c4ec 232IEEE80211_IF_FILE_R(hw_queues);
08643315 233
46900298 234/* STA attributes */
bfd8403a 235IEEE80211_IF_FILE(bssid, deflink.u.mgd.bssid, MAC);
f276e20b 236IEEE80211_IF_FILE(aid, vif.cfg.aid, DEC);
78e443e4 237IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
e9f207f0 238
0f78231b
JB		 239static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
240 enum ieee80211_smps_mode smps_mode)
241{
242 struct ieee80211_local *local = sdata->local;
243 int err;
244
0d8614b4 245 if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
0f78231b
JB		 246 smps_mode == IEEE80211_SMPS_STATIC)
247 return -EINVAL;
248
249 /* auto should be dynamic if in PS mode */
0d8614b4 250 if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
0f78231b
JB		 251 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
252 smps_mode == IEEE80211_SMPS_AUTOMATIC))
253 return -EINVAL;
254
52b4810b 255 if (sdata->vif.type != NL80211_IFTYPE_STATION)
0f78231b
JB		 256 return -EOPNOTSUPP;
257
8d61ffa5 258 sdata_lock(sdata);
d8675a63 259 err = __ieee80211_request_smps_mgd(sdata, &sdata->deflink, smps_mode);
8d61ffa5 260 sdata_unlock(sdata);
0f78231b
JB		 261
262 return err;
263}
264
265static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
266 [IEEE80211_SMPS_AUTOMATIC] = "auto",
267 [IEEE80211_SMPS_OFF] = "off",
268 [IEEE80211_SMPS_STATIC] = "static",
269 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
270};
271
272static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
273 char *buf, int buflen)
274{
687da132
EG		 275 if (sdata->vif.type == NL80211_IFTYPE_STATION)
276 return snprintf(buf, buflen, "request: %s\nused: %s\n",
bfd8403a
JB		 277 smps_modes[sdata->deflink.u.mgd.req_smps],
278 smps_modes[sdata->deflink.smps_mode]);
687da132 279 return -EINVAL;
0f78231b
JB		 280}
281
282static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
283 const char *buf, int buflen)
284{
285 enum ieee80211_smps_mode mode;
286
287 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
288 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
289 int err = ieee80211_set_smps(sdata, mode);
290 if (!err)
291 return buflen;
292 return err;
293 }
294 }
295
296 return -EINVAL;
297}
4cd3c4ec 298IEEE80211_IF_FILE_RW(smps);
681d1190 299
681d1190
JM		 300static ssize_t ieee80211_if_parse_tkip_mic_test(
301 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
302{
303 struct ieee80211_local *local = sdata->local;
304 u8 addr[ETH_ALEN];
305 struct sk_buff *skb;
306 struct ieee80211_hdr *hdr;
307 __le16 fc;
308
28656a11 309 if (!mac_pton(buf, addr))
681d1190
JM		 310 return -EINVAL;
311
312 if (!ieee80211_sdata_running(sdata))
313 return -ENOTCONN;
314
315 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
316 if (!skb)
317 return -ENOMEM;
318 skb_reserve(skb, local->hw.extra_tx_headroom);
319
b080db58 320 hdr = skb_put_zero(skb, 24);
681d1190
JM		 321 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
322
323 switch (sdata->vif.type) {
324 case NL80211_IFTYPE_AP:
325 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
326 /* DA BSSID SA */
327 memcpy(hdr->addr1, addr, ETH_ALEN);
328 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
329 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
330 break;
331 case NL80211_IFTYPE_STATION:
332 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
333 /* BSSID SA DA */
8d61ffa5 334 sdata_lock(sdata);
41c97a20 335 if (!sdata->u.mgd.associated) {
8d61ffa5 336 sdata_unlock(sdata);
681d1190
JM		 337 dev_kfree_skb(skb);
338 return -ENOTCONN;
339 }
bfd8403a 340 memcpy(hdr->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN);
681d1190
JM		 341 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
342 memcpy(hdr->addr3, addr, ETH_ALEN);
8d61ffa5 343 sdata_unlock(sdata);
681d1190
JM		 344 break;
345 default:
346 dev_kfree_skb(skb);
347 return -EOPNOTSUPP;
348 }
349 hdr->frame_control = fc;
350
351 /*
352 * Add some length to the test frame to make it look bit more valid.
353 * The exact contents does not matter since the recipient is required
354 * to drop this because of the Michael MIC failure.
355 */
b080db58 356 skb_put_zero(skb, 50);
681d1190
JM		 357
358 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
359
360 ieee80211_tx_skb(sdata, skb);
361
362 return buflen;
363}
4cd3c4ec 364IEEE80211_IF_FILE_W(tkip_mic_test);
681d1190 365
802ee9ec
EP		 366static ssize_t ieee80211_if_parse_beacon_loss(
367 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
368{
f276e20b 369 if (!ieee80211_sdata_running(sdata) || !sdata->vif.cfg.assoc)
802ee9ec
EP		 370 return -ENOTCONN;
371
372 ieee80211_beacon_loss(&sdata->vif);
373
374 return buflen;
375}
376IEEE80211_IF_FILE_W(beacon_loss);
377
dc41e4d4
EP		 378static ssize_t ieee80211_if_fmt_uapsd_queues(
379 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
380{
381 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
382
383 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
384}
385
386static ssize_t ieee80211_if_parse_uapsd_queues(
387 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
388{
389 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
390 u8 val;
391 int ret;
392
393 ret = kstrtou8(buf, 0, &val);
394 if (ret)
395 return ret;
396
397 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
398 return -ERANGE;
399
400 ifmgd->uapsd_queues = val;
401
402 return buflen;
403}
4cd3c4ec 404IEEE80211_IF_FILE_RW(uapsd_queues);
dc41e4d4
EP		 405
406static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
407 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
408{
409 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
410
411 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
412}
413
414static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
415 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
416{
417 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
418 unsigned long val;
419 int ret;
420
421 ret = kstrtoul(buf, 0, &val);
422 if (ret)
423 return -EINVAL;
424
425 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
426 return -ERANGE;
427
428 ifmgd->uapsd_max_sp_len = val;
429
430 return buflen;
431}
4cd3c4ec 432IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
dc41e4d4 433
82c0cc90
AN		 434static ssize_t ieee80211_if_fmt_tdls_wider_bw(
435 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
436{
437 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
438 bool tdls_wider_bw;
439
440 tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
441 !ifmgd->tdls_wider_bw_prohibited;
442
443 return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
444}
445
446static ssize_t ieee80211_if_parse_tdls_wider_bw(
447 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
448{
449 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
450 u8 val;
451 int ret;
452
453 ret = kstrtou8(buf, 0, &val);
454 if (ret)
455 return ret;
456
457 ifmgd->tdls_wider_bw_prohibited = !val;
458 return buflen;
459}
460IEEE80211_IF_FILE_RW(tdls_wider_bw);
461
e9f207f0 462/* AP attributes */
030ef8f8 463IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
d012a605
MP		 464IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
465IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
72f15d53 466IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
e9f207f0
JB		 467
468static ssize_t ieee80211_if_fmt_num_buffered_multicast(
469 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
470{
471 return scnprintf(buf, buflen, "%u\n",
d012a605 472 skb_queue_len(&sdata->u.ap.ps.bc_buf));
e9f207f0 473}
4cd3c4ec 474IEEE80211_IF_FILE_R(num_buffered_multicast);
e9f207f0 475
8d51dbb8
THJ		 476static ssize_t ieee80211_if_fmt_aqm(
477 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
478{
479 struct ieee80211_local *local = sdata->local;
8ed31a26 480 struct txq_info *txqi;
8d51dbb8
THJ		 481 int len;
482
8ed31a26
MP		 483 if (!sdata->vif.txq)
484 return 0;
485
486 txqi = to_txq_info(sdata->vif.txq);
487
8d51dbb8
THJ		 488 spin_lock_bh(&local->fq.lock);
489 rcu_read_lock();
490
491 len = scnprintf(buf,
492 buflen,
493 "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
494 "%u %u %u %u %u %u %u %u %u %u\n",
495 txqi->txq.ac,
496 txqi->tin.backlog_bytes,
497 txqi->tin.backlog_packets,
498 txqi->tin.flows,
499 txqi->cstats.drop_count,
500 txqi->cstats.ecn_mark,
501 txqi->tin.overlimit,
502 txqi->tin.collisions,
503 txqi->tin.tx_bytes,
504 txqi->tin.tx_packets);
505
506 rcu_read_unlock();
507 spin_unlock_bh(&local->fq.lock);
508
509 return len;
510}
511IEEE80211_IF_FILE_R(aqm);
512
ebceec86
MB		 513IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
514
37a41b4a
EP		 515/* IBSS attributes */
516static ssize_t ieee80211_if_fmt_tsf(
517 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
518{
519 struct ieee80211_local *local = sdata->local;
520 u64 tsf;
521
522 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
523
524 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
525}
526
527static ssize_t ieee80211_if_parse_tsf(
528 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
529{
530 struct ieee80211_local *local = sdata->local;
531 unsigned long long tsf;
532 int ret;
9bdd3a6b 533 int tsf_is_delta = 0;
37a41b4a
EP		 534
535 if (strncmp(buf, "reset", 5) == 0) {
536 if (local->ops->reset_tsf) {
537 drv_reset_tsf(local, sdata);
538 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
539 }
540 } else {
9bdd3a6b
JC		 541 if (buflen > 10 && buf[1] == '=') {
542 if (buf[0] == '+')
543 tsf_is_delta = 1;
544 else if (buf[0] == '-')
545 tsf_is_delta = -1;
546 else
547 return -EINVAL;
548 buf += 2;
549 }
37a41b4a
EP		 550 ret = kstrtoull(buf, 10, &tsf);
551 if (ret < 0)
6fc1da9b 552 return ret;
354d381b
PT		 553 if (tsf_is_delta && local->ops->offset_tsf) {
554 drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
555 wiphy_info(local->hw.wiphy,
556 "debugfs offset TSF by %018lld\n",
557 tsf_is_delta * tsf);
558 } else if (local->ops->set_tsf) {
559 if (tsf_is_delta)
560 tsf = drv_get_tsf(local, sdata) +
561 tsf_is_delta * tsf;
37a41b4a
EP		 562 drv_set_tsf(local, sdata, tsf);
563 wiphy_info(local->hw.wiphy,
564 "debugfs set TSF to %#018llx\n", tsf);
565 }
566 }
567
057d5f4b 568 ieee80211_recalc_dtim(local, sdata);
37a41b4a
EP		 569 return buflen;
570}
4cd3c4ec 571IEEE80211_IF_FILE_RW(tsf);
37a41b4a
EP		 572
573
9f42f607 574#ifdef CONFIG_MAC80211_MESH
d4a5a489
AN		 575IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
576
9f42f607 577/* Mesh stats attributes */
c8a61a7d
DW		 578IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
579IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
472dbc45
JB		 580IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
581IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
cfee66b0 582IEEE80211_IF_FILE(dropped_frames_congestion,
a4f606ea 583 u.mesh.mshstats.dropped_frames_congestion, DEC);
9f42f607 584IEEE80211_IF_FILE(dropped_frames_no_route,
a4f606ea 585 u.mesh.mshstats.dropped_frames_no_route, DEC);
9f42f607
LCC		 586
587/* Mesh parameters */
36ff382d 588IEEE80211_IF_FILE(dot11MeshMaxRetries,
a4f606ea 589 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
36ff382d 590IEEE80211_IF_FILE(dot11MeshRetryTimeout,
a4f606ea 591 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
36ff382d 592IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
a4f606ea 593 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
36ff382d 594IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
a4f606ea 595 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
36ff382d 596IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
45904f21 597IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
36ff382d
JB		 598IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
599IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
a4f606ea 600 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
36ff382d 601IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
a4f606ea 602 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
36ff382d 603IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
a4f606ea 604 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
dca7e943 605IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
a4f606ea 606 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
36ff382d 607IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
a4f606ea 608 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
36ff382d 609IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
a4f606ea 610 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
36ff382d 611IEEE80211_IF_FILE(path_refresh_time,
a4f606ea 612 u.mesh.mshcfg.path_refresh_time, DEC);
36ff382d 613IEEE80211_IF_FILE(min_discovery_timeout,
a4f606ea 614 u.mesh.mshcfg.min_discovery_timeout, DEC);
63c5723b 615IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
a4f606ea 616 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
16dd7267 617IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
a4f606ea 618 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
0507e159 619IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
a4f606ea 620 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
94f90656 621IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
55335137 622IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
4416f5d2 623IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
ac1073a6
CYY		 624IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
625 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
626IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
627 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
728b19e5
CYY		 628IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
629 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
3f52b7e3
MP		 630IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
631IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
632 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
01d66fbd
BC		 633IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
634 u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
e3718a61 635IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
184eebe6
MT		 636IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
637 u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
9f42f607
LCC		 638#endif
639
0f78231b 640#define DEBUGFS_ADD_MODE(name, mode) \
ddbfe860 641 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
84674ef4 642 sdata, &name##_ops)
0f78231b 643
fcb2c9e1
FF		 644#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
645
646static void add_common_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 647{
2d46d7c1
JB		 648 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
649 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
19468413
SW		 650 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
651 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
b119ad6e
LB		 652 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
653 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
08643315 654 DEBUGFS_ADD(hw_queues);
8d51dbb8 655
8ed31a26
MP		 656 if (sdata->local->ops->wake_tx_queue &&
657 sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
942741da 658 sdata->vif.type != NL80211_IFTYPE_NAN)
8d51dbb8 659 DEBUGFS_ADD(aqm);
fcb2c9e1 660}
3e122be0 661
fcb2c9e1
FF		 662static void add_sta_files(struct ieee80211_sub_if_data *sdata)
663{
2d46d7c1
JB		 664 DEBUGFS_ADD(bssid);
665 DEBUGFS_ADD(aid);
78e443e4 666 DEBUGFS_ADD(beacon_timeout);
0f78231b 667 DEBUGFS_ADD_MODE(smps, 0600);
681d1190 668 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
802ee9ec 669 DEBUGFS_ADD_MODE(beacon_loss, 0200);
dc41e4d4
EP		 670 DEBUGFS_ADD_MODE(uapsd_queues, 0600);
671 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
82c0cc90 672 DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
e9f207f0
JB		 673}
674
675static void add_ap_files(struct ieee80211_sub_if_data *sdata)
676{
030ef8f8 677 DEBUGFS_ADD(num_mcast_sta);
687da132 678 DEBUGFS_ADD_MODE(smps, 0600);
2d46d7c1
JB		 679 DEBUGFS_ADD(num_sta_ps);
680 DEBUGFS_ADD(dtim_count);
681 DEBUGFS_ADD(num_buffered_multicast);
681d1190 682 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
ebceec86 683 DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
e9f207f0
JB		 684}
685
72f15d53
MB		 686static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
687{
688 /* add num_mcast_sta_vlan using name num_mcast_sta */
689 debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
690 sdata, &num_mcast_sta_vlan_ops);
691}
692
37a41b4a
EP		 693static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
694{
695 DEBUGFS_ADD_MODE(tsf, 0600);
696}
697
9f42f607 698#ifdef CONFIG_MAC80211_MESH
9f42f607 699
12ce8ba3
JC		 700static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
701{
702 DEBUGFS_ADD_MODE(tsf, 0600);
d4a5a489 703 DEBUGFS_ADD_MODE(estab_plinks, 0400);
12ce8ba3
JC		 704}
705
9f42f607
LCC		 706static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
707{
7bcfaf2f 708 struct dentry *dir = debugfs_create_dir("mesh_stats",
ddbfe860 709 sdata->vif.debugfs_dir);
7bcfaf2f 710#define MESHSTATS_ADD(name)\
84674ef4 711 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops)
7bcfaf2f 712
c8a61a7d
DW		 713 MESHSTATS_ADD(fwded_mcast);
714 MESHSTATS_ADD(fwded_unicast);
9f42f607
LCC		 715 MESHSTATS_ADD(fwded_frames);
716 MESHSTATS_ADD(dropped_frames_ttl);
717 MESHSTATS_ADD(dropped_frames_no_route);
cfee66b0 718 MESHSTATS_ADD(dropped_frames_congestion);
7bcfaf2f 719#undef MESHSTATS_ADD
9f42f607
LCC		 720}
721
9f42f607
LCC		 722static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
723{
7bcfaf2f 724 struct dentry *dir = debugfs_create_dir("mesh_config",
ddbfe860 725 sdata->vif.debugfs_dir);
7bcfaf2f
JB		 726
727#define MESHPARAMS_ADD(name) \
84674ef4 728 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops)
7bcfaf2f 729
9f42f607
LCC		 730 MESHPARAMS_ADD(dot11MeshMaxRetries);
731 MESHPARAMS_ADD(dot11MeshRetryTimeout);
732 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
733 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
734 MESHPARAMS_ADD(dot11MeshTTL);
45904f21 735 MESHPARAMS_ADD(element_ttl);
9f42f607
LCC		 736 MESHPARAMS_ADD(auto_open_plinks);
737 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
738 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
739 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
dca7e943 740 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
9f42f607
LCC		 741 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
742 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
743 MESHPARAMS_ADD(path_refresh_time);
744 MESHPARAMS_ADD(min_discovery_timeout);
699403db 745 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
0507e159 746 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
8c06e8c0 747 MESHPARAMS_ADD(dot11MeshForwarding);
16dd7267 748 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
55335137 749 MESHPARAMS_ADD(rssi_threshold);
4416f5d2 750 MESHPARAMS_ADD(ht_opmode);
ac1073a6
CYY		 751 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
752 MESHPARAMS_ADD(dot11MeshHWMProotInterval);
728b19e5 753 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
3f52b7e3
MP		 754 MESHPARAMS_ADD(power_mode);
755 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
01d66fbd 756 MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
e3718a61 757 MESHPARAMS_ADD(dot11MeshNolearn);
184eebe6 758 MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
7bcfaf2f 759#undef MESHPARAMS_ADD
9f42f607
LCC		 760}
761#endif
762
e9f207f0
JB		 763static void add_files(struct ieee80211_sub_if_data *sdata)
764{
ddbfe860 765 if (!sdata->vif.debugfs_dir)
e9f207f0
JB		 766 return;
767
fcb2c9e1
FF		 768 DEBUGFS_ADD(flags);
769 DEBUGFS_ADD(state);
1ea6f9c0
JB		 770 DEBUGFS_ADD(txpower);
771 DEBUGFS_ADD(user_power_level);
772 DEBUGFS_ADD(ap_power_level);
fcb2c9e1
FF		 773
774 if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
775 add_common_files(sdata);
776
51fb61e7 777 switch (sdata->vif.type) {
05c914fe 778 case NL80211_IFTYPE_MESH_POINT:
9f42f607 779#ifdef CONFIG_MAC80211_MESH
12ce8ba3 780 add_mesh_files(sdata);
9f42f607
LCC		 781 add_mesh_stats(sdata);
782 add_mesh_config(sdata);
783#endif
472dbc45 784 break;
05c914fe 785 case NL80211_IFTYPE_STATION:
e9f207f0
JB		 786 add_sta_files(sdata);
787 break;
46900298 788 case NL80211_IFTYPE_ADHOC:
37a41b4a 789 add_ibss_files(sdata);
46900298 790 break;
05c914fe 791 case NL80211_IFTYPE_AP:
e9f207f0
JB		 792 add_ap_files(sdata);
793 break;
72f15d53
MB		 794 case NL80211_IFTYPE_AP_VLAN:
795 add_vlan_files(sdata);
796 break;
e9f207f0
JB		 797 default:
798 break;
799 }
800}
801
e9f207f0
JB		 802void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
803{
804 char buf[10+IFNAMSIZ];
805
47846c9b 806 sprintf(buf, "netdev:%s", sdata->name);
ddbfe860 807 sdata->vif.debugfs_dir = debugfs_create_dir(buf,
e9f207f0 808 sdata->local->hw.wiphy->debugfsdir);
5a7bb7ce
GKH		 809 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
810 sdata->vif.debugfs_dir);
75636525 811 add_files(sdata);
e9f207f0
JB		 812}
813
814void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
815{
ddbfe860 816 if (!sdata->vif.debugfs_dir)
7bcfaf2f
JB		 817 return;
818
ddbfe860
SG		 819 debugfs_remove_recursive(sdata->vif.debugfs_dir);
820 sdata->vif.debugfs_dir = NULL;
4479004e 821 sdata->debugfs.subdir_stations = NULL;
e9f207f0
JB		 822}
823
47846c9b 824void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
e9f207f0 825{
7c8081eb 826 struct dentry *dir;
47846c9b 827 char buf[10 + IFNAMSIZ];
3e122be0 828
ddbfe860 829 dir = sdata->vif.debugfs_dir;
c74e90a9 830
51787914 831 if (IS_ERR_OR_NULL(dir))
47846c9b 832 return;
c74e90a9 833
47846c9b 834 sprintf(buf, "netdev:%s", sdata->name);
5a7bb7ce 835 debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
e9f207f0 836}
Linux 6.x block layer and io_uring tree(s)