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 | struct ieee80211_if_read_sdata_data { |
26 | ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int); |
27 | struct ieee80211_sub_if_data *sdata; |
28 | }; |
29 | |
30 | static ssize_t ieee80211_if_read_sdata_handler(struct wiphy *wiphy, |
31 | struct file *file, |
32 | char *buf, |
33 | size_t bufsize, |
34 | void *data) |
35 | { |
36 | struct ieee80211_if_read_sdata_data *d = data; |
37 | |
38 | return d->format(d->sdata, buf, bufsize); |
39 | } |
40 | |
41 | static ssize_t ieee80211_if_read_sdata( |
42 | struct file *file, |
43 | char __user *userbuf, |
44 | size_t count, loff_t *ppos, |
45 | ssize_t (*format)(const struct ieee80211_sub_if_data *sdata, char *, int)) |
46 | { |
47 | struct ieee80211_sub_if_data *sdata = file->private_data; |
48 | struct ieee80211_if_read_sdata_data data = { |
49 | .format = format, |
50 | .sdata = sdata, |
51 | }; |
52 | char buf[200]; |
53 | |
54 | return wiphy_locked_debugfs_read(wiphy: sdata->local->hw.wiphy, |
55 | file, buf, bufsize: sizeof(buf), |
56 | userbuf, count, ppos, |
57 | handler: ieee80211_if_read_sdata_handler, |
58 | data: &data); |
59 | } |
60 | |
61 | struct ieee80211_if_write_sdata_data { |
62 | ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int); |
63 | struct ieee80211_sub_if_data *sdata; |
64 | }; |
65 | |
66 | static ssize_t ieee80211_if_write_sdata_handler(struct wiphy *wiphy, |
67 | struct file *file, |
68 | char *buf, |
69 | size_t count, |
70 | void *data) |
71 | { |
72 | struct ieee80211_if_write_sdata_data *d = data; |
73 | |
74 | return d->write(d->sdata, buf, count); |
75 | } |
76 | |
77 | static ssize_t ieee80211_if_write_sdata( |
78 | struct file *file, |
79 | const char __user *userbuf, |
80 | size_t count, loff_t *ppos, |
81 | ssize_t (*write)(struct ieee80211_sub_if_data *sdata, const char *, int)) |
82 | { |
83 | struct ieee80211_sub_if_data *sdata = file->private_data; |
84 | struct ieee80211_if_write_sdata_data data = { |
85 | .write = write, |
86 | .sdata = sdata, |
87 | }; |
88 | char buf[64]; |
89 | |
90 | return wiphy_locked_debugfs_write(wiphy: sdata->local->hw.wiphy, |
91 | file, buf, bufsize: sizeof(buf), |
92 | userbuf, count, |
93 | handler: ieee80211_if_write_sdata_handler, |
94 | data: &data); |
95 | } |
96 | |
97 | struct ieee80211_if_read_link_data { |
98 | ssize_t (*format)(const struct ieee80211_link_data *, char *, int); |
99 | struct ieee80211_link_data *link; |
100 | }; |
101 | |
102 | static ssize_t ieee80211_if_read_link_handler(struct wiphy *wiphy, |
103 | struct file *file, |
104 | char *buf, |
105 | size_t bufsize, |
106 | void *data) |
107 | { |
108 | struct ieee80211_if_read_link_data *d = data; |
109 | |
110 | return d->format(d->link, buf, bufsize); |
111 | } |
112 | |
113 | static ssize_t ieee80211_if_read_link( |
114 | struct file *file, |
115 | char __user *userbuf, |
116 | size_t count, loff_t *ppos, |
117 | ssize_t (*format)(const struct ieee80211_link_data *link, char *, int)) |
118 | { |
119 | struct ieee80211_link_data *link = file->private_data; |
120 | struct ieee80211_if_read_link_data data = { |
121 | .format = format, |
122 | .link = link, |
123 | }; |
124 | char buf[200]; |
125 | |
126 | return wiphy_locked_debugfs_read(wiphy: link->sdata->local->hw.wiphy, |
127 | file, buf, bufsize: sizeof(buf), |
128 | userbuf, count, ppos, |
129 | handler: ieee80211_if_read_link_handler, |
130 | data: &data); |
131 | } |
132 | |
133 | struct ieee80211_if_write_link_data { |
134 | ssize_t (*write)(struct ieee80211_link_data *, const char *, int); |
135 | struct ieee80211_link_data *link; |
136 | }; |
137 | |
138 | static ssize_t ieee80211_if_write_link_handler(struct wiphy *wiphy, |
139 | struct file *file, |
140 | char *buf, |
141 | size_t count, |
142 | void *data) |
143 | { |
144 | struct ieee80211_if_write_sdata_data *d = data; |
145 | |
146 | return d->write(d->sdata, buf, count); |
147 | } |
148 | |
149 | static ssize_t ieee80211_if_write_link( |
150 | struct file *file, |
151 | const char __user *userbuf, |
152 | size_t count, loff_t *ppos, |
153 | ssize_t (*write)(struct ieee80211_link_data *link, const char *, int)) |
154 | { |
155 | struct ieee80211_link_data *link = file->private_data; |
156 | struct ieee80211_if_write_link_data data = { |
157 | .write = write, |
158 | .link = link, |
159 | }; |
160 | char buf[64]; |
161 | |
162 | return wiphy_locked_debugfs_write(wiphy: link->sdata->local->hw.wiphy, |
163 | file, buf, bufsize: sizeof(buf), |
164 | userbuf, count, |
165 | handler: ieee80211_if_write_link_handler, |
166 | data: &data); |
167 | } |
168 | |
169 | #define IEEE80211_IF_FMT(name, type, field, format_string) \ |
170 | static ssize_t ieee80211_if_fmt_##name( \ |
171 | const type *data, char *buf, \ |
172 | int buflen) \ |
173 | { \ |
174 | return scnprintf(buf, buflen, format_string, data->field); \ |
175 | } |
176 | #define IEEE80211_IF_FMT_DEC(name, type, field) \ |
177 | IEEE80211_IF_FMT(name, type, field, "%d\n") |
178 | #define IEEE80211_IF_FMT_HEX(name, type, field) \ |
179 | IEEE80211_IF_FMT(name, type, field, "%#x\n") |
180 | #define IEEE80211_IF_FMT_LHEX(name, type, field) \ |
181 | IEEE80211_IF_FMT(name, type, field, "%#lx\n") |
182 | |
183 | #define IEEE80211_IF_FMT_HEXARRAY(name, type, field) \ |
184 | static ssize_t ieee80211_if_fmt_##name( \ |
185 | const type *data, \ |
186 | char *buf, int buflen) \ |
187 | { \ |
188 | char *p = buf; \ |
189 | int i; \ |
190 | for (i = 0; i < sizeof(data->field); i++) { \ |
191 | p += scnprintf(p, buflen + buf - p, "%.2x ", \ |
192 | data->field[i]); \ |
193 | } \ |
194 | p += scnprintf(p, buflen + buf - p, "\n"); \ |
195 | return p - buf; \ |
196 | } |
197 | |
198 | #define IEEE80211_IF_FMT_ATOMIC(name, type, field) \ |
199 | static ssize_t ieee80211_if_fmt_##name( \ |
200 | const type *data, \ |
201 | char *buf, int buflen) \ |
202 | { \ |
203 | return scnprintf(buf, buflen, "%d\n", atomic_read(&data->field));\ |
204 | } |
205 | |
206 | #define IEEE80211_IF_FMT_MAC(name, type, field) \ |
207 | static ssize_t ieee80211_if_fmt_##name( \ |
208 | const type *data, char *buf, \ |
209 | int buflen) \ |
210 | { \ |
211 | return scnprintf(buf, buflen, "%pM\n", data->field); \ |
212 | } |
213 | |
214 | #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, type, field) \ |
215 | static ssize_t ieee80211_if_fmt_##name( \ |
216 | const type *data, \ |
217 | char *buf, int buflen) \ |
218 | { \ |
219 | return scnprintf(buf, buflen, "%d\n", \ |
220 | jiffies_to_msecs(data->field)); \ |
221 | } |
222 | |
223 | #define _IEEE80211_IF_FILE_OPS(name, _read, _write) \ |
224 | static const struct file_operations name##_ops = { \ |
225 | .read = (_read), \ |
226 | .write = (_write), \ |
227 | .open = simple_open, \ |
228 | .llseek = generic_file_llseek, \ |
229 | } |
230 | |
231 | #define _IEEE80211_IF_FILE_R_FN(name) \ |
232 | static ssize_t ieee80211_if_read_##name(struct file *file, \ |
233 | char __user *userbuf, \ |
234 | size_t count, loff_t *ppos) \ |
235 | { \ |
236 | return ieee80211_if_read_sdata(file, \ |
237 | userbuf, count, ppos, \ |
238 | ieee80211_if_fmt_##name); \ |
239 | } |
240 | |
241 | #define _IEEE80211_IF_FILE_W_FN(name) \ |
242 | static ssize_t ieee80211_if_write_##name(struct file *file, \ |
243 | const char __user *userbuf, \ |
244 | size_t count, loff_t *ppos) \ |
245 | { \ |
246 | return ieee80211_if_write_sdata(file, userbuf, \ |
247 | count, ppos, \ |
248 | ieee80211_if_parse_##name); \ |
249 | } |
250 | |
251 | #define IEEE80211_IF_FILE_R(name) \ |
252 | _IEEE80211_IF_FILE_R_FN(name) \ |
253 | _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL) |
254 | |
255 | #define IEEE80211_IF_FILE_W(name) \ |
256 | _IEEE80211_IF_FILE_W_FN(name) \ |
257 | _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name) |
258 | |
259 | #define IEEE80211_IF_FILE_RW(name) \ |
260 | _IEEE80211_IF_FILE_R_FN(name) \ |
261 | _IEEE80211_IF_FILE_W_FN(name) \ |
262 | _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \ |
263 | ieee80211_if_write_##name) |
264 | |
265 | #define IEEE80211_IF_FILE(name, field, format) \ |
266 | IEEE80211_IF_FMT_##format(name, struct ieee80211_sub_if_data, field) \ |
267 | IEEE80211_IF_FILE_R(name) |
268 | |
269 | #define _IEEE80211_IF_LINK_R_FN(name) \ |
270 | static ssize_t ieee80211_if_read_##name(struct file *file, \ |
271 | char __user *userbuf, \ |
272 | size_t count, loff_t *ppos) \ |
273 | { \ |
274 | return ieee80211_if_read_link(file, \ |
275 | userbuf, count, ppos, \ |
276 | ieee80211_if_fmt_##name); \ |
277 | } |
278 | |
279 | #define _IEEE80211_IF_LINK_W_FN(name) \ |
280 | static ssize_t ieee80211_if_write_##name(struct file *file, \ |
281 | const char __user *userbuf, \ |
282 | size_t count, loff_t *ppos) \ |
283 | { \ |
284 | return ieee80211_if_write_link(file, userbuf, \ |
285 | count, ppos, \ |
286 | ieee80211_if_parse_##name); \ |
287 | } |
288 | |
289 | #define IEEE80211_IF_LINK_FILE_R(name) \ |
290 | _IEEE80211_IF_LINK_R_FN(name) \ |
291 | _IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, NULL) |
292 | |
293 | #define IEEE80211_IF_LINK_FILE_W(name) \ |
294 | _IEEE80211_IF_LINK_W_FN(name) \ |
295 | _IEEE80211_IF_FILE_OPS(link_##name, NULL, ieee80211_if_write_##name) |
296 | |
297 | #define IEEE80211_IF_LINK_FILE_RW(name) \ |
298 | _IEEE80211_IF_LINK_R_FN(name) \ |
299 | _IEEE80211_IF_LINK_W_FN(name) \ |
300 | _IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, \ |
301 | ieee80211_if_write_##name) |
302 | |
303 | #define IEEE80211_IF_LINK_FILE(name, field, format) \ |
304 | IEEE80211_IF_FMT_##format(name, struct ieee80211_link_data, field) \ |
305 | IEEE80211_IF_LINK_FILE_R(name) |
306 | |
307 | /* common attributes */ |
308 | IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ], |
309 | HEX); |
310 | IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ], |
311 | HEX); |
312 | IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz, |
313 | rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY); |
314 | IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz, |
315 | rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY); |
316 | |
317 | static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz( |
318 | const struct ieee80211_sub_if_data *sdata, |
319 | char *buf, int buflen) |
320 | { |
321 | int i, len = 0; |
322 | const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ]; |
323 | |
324 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) |
325 | len += scnprintf(buf: buf + len, size: buflen - len, fmt: "%04x " , mask[i]); |
326 | len += scnprintf(buf: buf + len, size: buflen - len, fmt: "\n" ); |
327 | |
328 | return len; |
329 | } |
330 | |
331 | IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz); |
332 | |
333 | static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz( |
334 | const struct ieee80211_sub_if_data *sdata, |
335 | char *buf, int buflen) |
336 | { |
337 | int i, len = 0; |
338 | const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ]; |
339 | |
340 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) |
341 | len += scnprintf(buf: buf + len, size: buflen - len, fmt: "%04x " , mask[i]); |
342 | len += scnprintf(buf: buf + len, size: buflen - len, fmt: "\n" ); |
343 | |
344 | return len; |
345 | } |
346 | |
347 | IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz); |
348 | |
349 | IEEE80211_IF_FILE(flags, flags, HEX); |
350 | IEEE80211_IF_FILE(state, state, LHEX); |
351 | IEEE80211_IF_LINK_FILE(txpower, conf->txpower, DEC); |
352 | IEEE80211_IF_LINK_FILE(ap_power_level, ap_power_level, DEC); |
353 | IEEE80211_IF_LINK_FILE(user_power_level, user_power_level, DEC); |
354 | |
355 | static ssize_t |
356 | ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata, |
357 | char *buf, int buflen) |
358 | { |
359 | int len; |
360 | |
361 | len = scnprintf(buf, size: buflen, fmt: "AC queues: VO:%d VI:%d BE:%d BK:%d\n" , |
362 | sdata->vif.hw_queue[IEEE80211_AC_VO], |
363 | sdata->vif.hw_queue[IEEE80211_AC_VI], |
364 | sdata->vif.hw_queue[IEEE80211_AC_BE], |
365 | sdata->vif.hw_queue[IEEE80211_AC_BK]); |
366 | |
367 | if (sdata->vif.type == NL80211_IFTYPE_AP) |
368 | len += scnprintf(buf: buf + len, size: buflen - len, fmt: "cab queue: %d\n" , |
369 | sdata->vif.cab_queue); |
370 | |
371 | return len; |
372 | } |
373 | IEEE80211_IF_FILE_R(hw_queues); |
374 | |
375 | /* STA attributes */ |
376 | IEEE80211_IF_FILE(bssid, deflink.u.mgd.bssid, MAC); |
377 | IEEE80211_IF_FILE(aid, vif.cfg.aid, DEC); |
378 | IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS); |
379 | |
380 | static int ieee80211_set_smps(struct ieee80211_link_data *link, |
381 | enum ieee80211_smps_mode smps_mode) |
382 | { |
383 | struct ieee80211_sub_if_data *sdata = link->sdata; |
384 | struct ieee80211_local *local = sdata->local; |
385 | |
386 | /* The driver indicated that EML is enabled for the interface, thus do |
387 | * not allow to override the SMPS state. |
388 | */ |
389 | if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) |
390 | return -EOPNOTSUPP; |
391 | |
392 | if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) && |
393 | smps_mode == IEEE80211_SMPS_STATIC) |
394 | return -EINVAL; |
395 | |
396 | /* auto should be dynamic if in PS mode */ |
397 | if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) && |
398 | (smps_mode == IEEE80211_SMPS_DYNAMIC || |
399 | smps_mode == IEEE80211_SMPS_AUTOMATIC)) |
400 | return -EINVAL; |
401 | |
402 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
403 | return -EOPNOTSUPP; |
404 | |
405 | return __ieee80211_request_smps_mgd(sdata: link->sdata, link, smps_mode); |
406 | } |
407 | |
408 | static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { |
409 | [IEEE80211_SMPS_AUTOMATIC] = "auto" , |
410 | [IEEE80211_SMPS_OFF] = "off" , |
411 | [IEEE80211_SMPS_STATIC] = "static" , |
412 | [IEEE80211_SMPS_DYNAMIC] = "dynamic" , |
413 | }; |
414 | |
415 | static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_link_data *link, |
416 | char *buf, int buflen) |
417 | { |
418 | if (link->sdata->vif.type == NL80211_IFTYPE_STATION) |
419 | return snprintf(buf, size: buflen, fmt: "request: %s\nused: %s\n" , |
420 | smps_modes[link->u.mgd.req_smps], |
421 | smps_modes[link->smps_mode]); |
422 | return -EINVAL; |
423 | } |
424 | |
425 | static ssize_t ieee80211_if_parse_smps(struct ieee80211_link_data *link, |
426 | const char *buf, int buflen) |
427 | { |
428 | enum ieee80211_smps_mode mode; |
429 | |
430 | for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) { |
431 | if (strncmp(buf, smps_modes[mode], buflen) == 0) { |
432 | int err = ieee80211_set_smps(link, smps_mode: mode); |
433 | if (!err) |
434 | return buflen; |
435 | return err; |
436 | } |
437 | } |
438 | |
439 | return -EINVAL; |
440 | } |
441 | IEEE80211_IF_LINK_FILE_RW(smps); |
442 | |
443 | static ssize_t ieee80211_if_parse_tkip_mic_test( |
444 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) |
445 | { |
446 | struct ieee80211_local *local = sdata->local; |
447 | u8 addr[ETH_ALEN]; |
448 | struct sk_buff *skb; |
449 | struct ieee80211_hdr *hdr; |
450 | __le16 fc; |
451 | |
452 | if (!mac_pton(s: buf, mac: addr)) |
453 | return -EINVAL; |
454 | |
455 | if (!ieee80211_sdata_running(sdata)) |
456 | return -ENOTCONN; |
457 | |
458 | skb = dev_alloc_skb(length: local->hw.extra_tx_headroom + 24 + 100); |
459 | if (!skb) |
460 | return -ENOMEM; |
461 | skb_reserve(skb, len: local->hw.extra_tx_headroom); |
462 | |
463 | hdr = skb_put_zero(skb, len: 24); |
464 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA); |
465 | |
466 | switch (sdata->vif.type) { |
467 | case NL80211_IFTYPE_AP: |
468 | fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); |
469 | /* DA BSSID SA */ |
470 | memcpy(hdr->addr1, addr, ETH_ALEN); |
471 | memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); |
472 | memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN); |
473 | break; |
474 | case NL80211_IFTYPE_STATION: |
475 | fc |= cpu_to_le16(IEEE80211_FCTL_TODS); |
476 | /* BSSID SA DA */ |
477 | if (!sdata->u.mgd.associated) { |
478 | dev_kfree_skb(skb); |
479 | return -ENOTCONN; |
480 | } |
481 | memcpy(hdr->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN); |
482 | memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); |
483 | memcpy(hdr->addr3, addr, ETH_ALEN); |
484 | break; |
485 | default: |
486 | dev_kfree_skb(skb); |
487 | return -EOPNOTSUPP; |
488 | } |
489 | hdr->frame_control = fc; |
490 | |
491 | /* |
492 | * Add some length to the test frame to make it look bit more valid. |
493 | * The exact contents does not matter since the recipient is required |
494 | * to drop this because of the Michael MIC failure. |
495 | */ |
496 | skb_put_zero(skb, len: 50); |
497 | |
498 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE; |
499 | |
500 | ieee80211_tx_skb(sdata, skb); |
501 | |
502 | return buflen; |
503 | } |
504 | IEEE80211_IF_FILE_W(tkip_mic_test); |
505 | |
506 | static ssize_t ieee80211_if_parse_beacon_loss( |
507 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) |
508 | { |
509 | if (!ieee80211_sdata_running(sdata) || !sdata->vif.cfg.assoc) |
510 | return -ENOTCONN; |
511 | |
512 | ieee80211_beacon_loss(vif: &sdata->vif); |
513 | |
514 | return buflen; |
515 | } |
516 | IEEE80211_IF_FILE_W(beacon_loss); |
517 | |
518 | static ssize_t ieee80211_if_fmt_uapsd_queues( |
519 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) |
520 | { |
521 | const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
522 | |
523 | return snprintf(buf, size: buflen, fmt: "0x%x\n" , ifmgd->uapsd_queues); |
524 | } |
525 | |
526 | static ssize_t ieee80211_if_parse_uapsd_queues( |
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(s: buf, base: 0, res: &val); |
534 | if (ret) |
535 | return ret; |
536 | |
537 | if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) |
538 | return -ERANGE; |
539 | |
540 | ifmgd->uapsd_queues = val; |
541 | |
542 | return buflen; |
543 | } |
544 | IEEE80211_IF_FILE_RW(uapsd_queues); |
545 | |
546 | static ssize_t ieee80211_if_fmt_uapsd_max_sp_len( |
547 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) |
548 | { |
549 | const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
550 | |
551 | return snprintf(buf, size: buflen, fmt: "0x%x\n" , ifmgd->uapsd_max_sp_len); |
552 | } |
553 | |
554 | static ssize_t ieee80211_if_parse_uapsd_max_sp_len( |
555 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) |
556 | { |
557 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
558 | unsigned long val; |
559 | int ret; |
560 | |
561 | ret = kstrtoul(s: buf, base: 0, res: &val); |
562 | if (ret) |
563 | return -EINVAL; |
564 | |
565 | if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) |
566 | return -ERANGE; |
567 | |
568 | ifmgd->uapsd_max_sp_len = val; |
569 | |
570 | return buflen; |
571 | } |
572 | IEEE80211_IF_FILE_RW(uapsd_max_sp_len); |
573 | |
574 | static ssize_t ieee80211_if_fmt_tdls_wider_bw( |
575 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) |
576 | { |
577 | const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
578 | bool tdls_wider_bw; |
579 | |
580 | tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) && |
581 | !ifmgd->tdls_wider_bw_prohibited; |
582 | |
583 | return snprintf(buf, size: buflen, fmt: "%d\n" , tdls_wider_bw); |
584 | } |
585 | |
586 | static ssize_t ieee80211_if_parse_tdls_wider_bw( |
587 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) |
588 | { |
589 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
590 | u8 val; |
591 | int ret; |
592 | |
593 | ret = kstrtou8(s: buf, base: 0, res: &val); |
594 | if (ret) |
595 | return ret; |
596 | |
597 | ifmgd->tdls_wider_bw_prohibited = !val; |
598 | return buflen; |
599 | } |
600 | IEEE80211_IF_FILE_RW(tdls_wider_bw); |
601 | |
602 | /* AP attributes */ |
603 | IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC); |
604 | IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC); |
605 | IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC); |
606 | IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC); |
607 | |
608 | static ssize_t ieee80211_if_fmt_num_buffered_multicast( |
609 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) |
610 | { |
611 | return scnprintf(buf, size: buflen, fmt: "%u\n" , |
612 | skb_queue_len(list_: &sdata->u.ap.ps.bc_buf)); |
613 | } |
614 | IEEE80211_IF_FILE_R(num_buffered_multicast); |
615 | |
616 | static ssize_t ieee80211_if_fmt_aqm( |
617 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) |
618 | { |
619 | struct ieee80211_local *local = sdata->local; |
620 | struct txq_info *txqi; |
621 | int len; |
622 | |
623 | if (!sdata->vif.txq) |
624 | return 0; |
625 | |
626 | txqi = to_txq_info(txq: sdata->vif.txq); |
627 | |
628 | spin_lock_bh(lock: &local->fq.lock); |
629 | rcu_read_lock(); |
630 | |
631 | len = scnprintf(buf, |
632 | size: buflen, |
633 | fmt: "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n" |
634 | "%u %u %u %u %u %u %u %u %u %u\n" , |
635 | txqi->txq.ac, |
636 | txqi->tin.backlog_bytes, |
637 | txqi->tin.backlog_packets, |
638 | txqi->tin.flows, |
639 | txqi->cstats.drop_count, |
640 | txqi->cstats.ecn_mark, |
641 | txqi->tin.overlimit, |
642 | txqi->tin.collisions, |
643 | txqi->tin.tx_bytes, |
644 | txqi->tin.tx_packets); |
645 | |
646 | rcu_read_unlock(); |
647 | spin_unlock_bh(lock: &local->fq.lock); |
648 | |
649 | return len; |
650 | } |
651 | IEEE80211_IF_FILE_R(aqm); |
652 | |
653 | IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX); |
654 | |
655 | /* IBSS attributes */ |
656 | static ssize_t ieee80211_if_fmt_tsf( |
657 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) |
658 | { |
659 | struct ieee80211_local *local = sdata->local; |
660 | u64 tsf; |
661 | |
662 | tsf = drv_get_tsf(local, sdata: (struct ieee80211_sub_if_data *)sdata); |
663 | |
664 | return scnprintf(buf, size: buflen, fmt: "0x%016llx\n" , (unsigned long long) tsf); |
665 | } |
666 | |
667 | static ssize_t ieee80211_if_parse_tsf( |
668 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) |
669 | { |
670 | struct ieee80211_local *local = sdata->local; |
671 | unsigned long long tsf; |
672 | int ret; |
673 | int tsf_is_delta = 0; |
674 | |
675 | if (strncmp(buf, "reset" , 5) == 0) { |
676 | if (local->ops->reset_tsf) { |
677 | drv_reset_tsf(local, sdata); |
678 | wiphy_info(local->hw.wiphy, "debugfs reset TSF\n" ); |
679 | } |
680 | } else { |
681 | if (buflen > 10 && buf[1] == '=') { |
682 | if (buf[0] == '+') |
683 | tsf_is_delta = 1; |
684 | else if (buf[0] == '-') |
685 | tsf_is_delta = -1; |
686 | else |
687 | return -EINVAL; |
688 | buf += 2; |
689 | } |
690 | ret = kstrtoull(s: buf, base: 10, res: &tsf); |
691 | if (ret < 0) |
692 | return ret; |
693 | if (tsf_is_delta && local->ops->offset_tsf) { |
694 | drv_offset_tsf(local, sdata, offset: tsf_is_delta * tsf); |
695 | wiphy_info(local->hw.wiphy, |
696 | "debugfs offset TSF by %018lld\n" , |
697 | tsf_is_delta * tsf); |
698 | } else if (local->ops->set_tsf) { |
699 | if (tsf_is_delta) |
700 | tsf = drv_get_tsf(local, sdata) + |
701 | tsf_is_delta * tsf; |
702 | drv_set_tsf(local, sdata, tsf); |
703 | wiphy_info(local->hw.wiphy, |
704 | "debugfs set TSF to %#018llx\n" , tsf); |
705 | } |
706 | } |
707 | |
708 | ieee80211_recalc_dtim(local, sdata); |
709 | return buflen; |
710 | } |
711 | IEEE80211_IF_FILE_RW(tsf); |
712 | |
713 | static ssize_t ieee80211_if_fmt_valid_links(const struct ieee80211_sub_if_data *sdata, |
714 | char *buf, int buflen) |
715 | { |
716 | return snprintf(buf, size: buflen, fmt: "0x%x\n" , sdata->vif.valid_links); |
717 | } |
718 | IEEE80211_IF_FILE_R(valid_links); |
719 | |
720 | static ssize_t ieee80211_if_fmt_active_links(const struct ieee80211_sub_if_data *sdata, |
721 | char *buf, int buflen) |
722 | { |
723 | return snprintf(buf, size: buflen, fmt: "0x%x\n" , sdata->vif.active_links); |
724 | } |
725 | |
726 | static ssize_t ieee80211_if_parse_active_links(struct ieee80211_sub_if_data *sdata, |
727 | const char *buf, int buflen) |
728 | { |
729 | u16 active_links; |
730 | |
731 | if (kstrtou16(s: buf, base: 0, res: &active_links)) |
732 | return -EINVAL; |
733 | |
734 | return ieee80211_set_active_links(vif: &sdata->vif, active_links) ?: buflen; |
735 | } |
736 | IEEE80211_IF_FILE_RW(active_links); |
737 | |
738 | IEEE80211_IF_LINK_FILE(addr, conf->addr, MAC); |
739 | |
740 | #ifdef CONFIG_MAC80211_MESH |
741 | IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC); |
742 | |
743 | /* Mesh stats attributes */ |
744 | IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC); |
745 | IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC); |
746 | IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC); |
747 | IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC); |
748 | IEEE80211_IF_FILE(dropped_frames_no_route, |
749 | u.mesh.mshstats.dropped_frames_no_route, DEC); |
750 | |
751 | /* Mesh parameters */ |
752 | IEEE80211_IF_FILE(dot11MeshMaxRetries, |
753 | u.mesh.mshcfg.dot11MeshMaxRetries, DEC); |
754 | IEEE80211_IF_FILE(dot11MeshRetryTimeout, |
755 | u.mesh.mshcfg.dot11MeshRetryTimeout, DEC); |
756 | IEEE80211_IF_FILE(dot11MeshConfirmTimeout, |
757 | u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC); |
758 | IEEE80211_IF_FILE(dot11MeshHoldingTimeout, |
759 | u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC); |
760 | IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC); |
761 | IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC); |
762 | IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC); |
763 | IEEE80211_IF_FILE(dot11MeshMaxPeerLinks, |
764 | u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC); |
765 | IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout, |
766 | u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC); |
767 | IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval, |
768 | u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC); |
769 | IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval, |
770 | u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC); |
771 | IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime, |
772 | u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC); |
773 | IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries, |
774 | u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC); |
775 | IEEE80211_IF_FILE(path_refresh_time, |
776 | u.mesh.mshcfg.path_refresh_time, DEC); |
777 | IEEE80211_IF_FILE(min_discovery_timeout, |
778 | u.mesh.mshcfg.min_discovery_timeout, DEC); |
779 | IEEE80211_IF_FILE(dot11MeshHWMPRootMode, |
780 | u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC); |
781 | IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol, |
782 | u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC); |
783 | IEEE80211_IF_FILE(dot11MeshHWMPRannInterval, |
784 | u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC); |
785 | IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC); |
786 | IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC); |
787 | IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC); |
788 | IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout, |
789 | u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC); |
790 | IEEE80211_IF_FILE(dot11MeshHWMProotInterval, |
791 | u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC); |
792 | IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval, |
793 | u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC); |
794 | IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC); |
795 | IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration, |
796 | u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC); |
797 | IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate, |
798 | u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC); |
799 | IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC); |
800 | IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer, |
801 | u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC); |
802 | #endif |
803 | |
804 | #define DEBUGFS_ADD_MODE(name, mode) \ |
805 | debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \ |
806 | sdata, &name##_ops) |
807 | |
808 | #define DEBUGFS_ADD_X(_bits, _name, _mode) \ |
809 | debugfs_create_x##_bits(#_name, _mode, sdata->vif.debugfs_dir, \ |
810 | &sdata->vif._name) |
811 | |
812 | #define DEBUGFS_ADD_X8(_name, _mode) \ |
813 | DEBUGFS_ADD_X(8, _name, _mode) |
814 | |
815 | #define DEBUGFS_ADD_X16(_name, _mode) \ |
816 | DEBUGFS_ADD_X(16, _name, _mode) |
817 | |
818 | #define DEBUGFS_ADD_X32(_name, _mode) \ |
819 | DEBUGFS_ADD_X(32, _name, _mode) |
820 | |
821 | #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400) |
822 | |
823 | static void add_common_files(struct ieee80211_sub_if_data *sdata) |
824 | { |
825 | DEBUGFS_ADD(rc_rateidx_mask_2ghz); |
826 | DEBUGFS_ADD(rc_rateidx_mask_5ghz); |
827 | DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz); |
828 | DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz); |
829 | DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz); |
830 | DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz); |
831 | DEBUGFS_ADD(hw_queues); |
832 | |
833 | if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && |
834 | sdata->vif.type != NL80211_IFTYPE_NAN) |
835 | DEBUGFS_ADD(aqm); |
836 | } |
837 | |
838 | static void add_sta_files(struct ieee80211_sub_if_data *sdata) |
839 | { |
840 | DEBUGFS_ADD(bssid); |
841 | DEBUGFS_ADD(aid); |
842 | DEBUGFS_ADD(beacon_timeout); |
843 | DEBUGFS_ADD_MODE(tkip_mic_test, 0200); |
844 | DEBUGFS_ADD_MODE(beacon_loss, 0200); |
845 | DEBUGFS_ADD_MODE(uapsd_queues, 0600); |
846 | DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600); |
847 | DEBUGFS_ADD_MODE(tdls_wider_bw, 0600); |
848 | DEBUGFS_ADD_MODE(valid_links, 0400); |
849 | DEBUGFS_ADD_MODE(active_links, 0600); |
850 | DEBUGFS_ADD_X16(dormant_links, 0400); |
851 | } |
852 | |
853 | static void add_ap_files(struct ieee80211_sub_if_data *sdata) |
854 | { |
855 | DEBUGFS_ADD(num_mcast_sta); |
856 | DEBUGFS_ADD(num_sta_ps); |
857 | DEBUGFS_ADD(dtim_count); |
858 | DEBUGFS_ADD(num_buffered_multicast); |
859 | DEBUGFS_ADD_MODE(tkip_mic_test, 0200); |
860 | DEBUGFS_ADD_MODE(multicast_to_unicast, 0600); |
861 | } |
862 | |
863 | static void add_vlan_files(struct ieee80211_sub_if_data *sdata) |
864 | { |
865 | /* add num_mcast_sta_vlan using name num_mcast_sta */ |
866 | debugfs_create_file(name: "num_mcast_sta" , mode: 0400, parent: sdata->vif.debugfs_dir, |
867 | data: sdata, fops: &num_mcast_sta_vlan_ops); |
868 | } |
869 | |
870 | static void add_ibss_files(struct ieee80211_sub_if_data *sdata) |
871 | { |
872 | DEBUGFS_ADD_MODE(tsf, 0600); |
873 | } |
874 | |
875 | #ifdef CONFIG_MAC80211_MESH |
876 | |
877 | static void add_mesh_files(struct ieee80211_sub_if_data *sdata) |
878 | { |
879 | DEBUGFS_ADD_MODE(tsf, 0600); |
880 | DEBUGFS_ADD_MODE(estab_plinks, 0400); |
881 | } |
882 | |
883 | static void add_mesh_stats(struct ieee80211_sub_if_data *sdata) |
884 | { |
885 | struct dentry *dir = debugfs_create_dir(name: "mesh_stats" , |
886 | parent: sdata->vif.debugfs_dir); |
887 | #define MESHSTATS_ADD(name)\ |
888 | debugfs_create_file(#name, 0400, dir, sdata, &name##_ops) |
889 | |
890 | MESHSTATS_ADD(fwded_mcast); |
891 | MESHSTATS_ADD(fwded_unicast); |
892 | MESHSTATS_ADD(fwded_frames); |
893 | MESHSTATS_ADD(dropped_frames_ttl); |
894 | MESHSTATS_ADD(dropped_frames_no_route); |
895 | #undef MESHSTATS_ADD |
896 | } |
897 | |
898 | static void add_mesh_config(struct ieee80211_sub_if_data *sdata) |
899 | { |
900 | struct dentry *dir = debugfs_create_dir(name: "mesh_config" , |
901 | parent: sdata->vif.debugfs_dir); |
902 | |
903 | #define MESHPARAMS_ADD(name) \ |
904 | debugfs_create_file(#name, 0600, dir, sdata, &name##_ops) |
905 | |
906 | MESHPARAMS_ADD(dot11MeshMaxRetries); |
907 | MESHPARAMS_ADD(dot11MeshRetryTimeout); |
908 | MESHPARAMS_ADD(dot11MeshConfirmTimeout); |
909 | MESHPARAMS_ADD(dot11MeshHoldingTimeout); |
910 | MESHPARAMS_ADD(dot11MeshTTL); |
911 | MESHPARAMS_ADD(element_ttl); |
912 | MESHPARAMS_ADD(auto_open_plinks); |
913 | MESHPARAMS_ADD(dot11MeshMaxPeerLinks); |
914 | MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout); |
915 | MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval); |
916 | MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval); |
917 | MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime); |
918 | MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries); |
919 | MESHPARAMS_ADD(path_refresh_time); |
920 | MESHPARAMS_ADD(min_discovery_timeout); |
921 | MESHPARAMS_ADD(dot11MeshHWMPRootMode); |
922 | MESHPARAMS_ADD(dot11MeshHWMPRannInterval); |
923 | MESHPARAMS_ADD(dot11MeshForwarding); |
924 | MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol); |
925 | MESHPARAMS_ADD(rssi_threshold); |
926 | MESHPARAMS_ADD(ht_opmode); |
927 | MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout); |
928 | MESHPARAMS_ADD(dot11MeshHWMProotInterval); |
929 | MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval); |
930 | MESHPARAMS_ADD(power_mode); |
931 | MESHPARAMS_ADD(dot11MeshAwakeWindowDuration); |
932 | MESHPARAMS_ADD(dot11MeshConnectedToMeshGate); |
933 | MESHPARAMS_ADD(dot11MeshNolearn); |
934 | MESHPARAMS_ADD(dot11MeshConnectedToAuthServer); |
935 | #undef MESHPARAMS_ADD |
936 | } |
937 | #endif |
938 | |
939 | static void add_files(struct ieee80211_sub_if_data *sdata) |
940 | { |
941 | if (!sdata->vif.debugfs_dir) |
942 | return; |
943 | |
944 | DEBUGFS_ADD(flags); |
945 | DEBUGFS_ADD(state); |
946 | |
947 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR) |
948 | add_common_files(sdata); |
949 | |
950 | switch (sdata->vif.type) { |
951 | case NL80211_IFTYPE_MESH_POINT: |
952 | #ifdef CONFIG_MAC80211_MESH |
953 | add_mesh_files(sdata); |
954 | add_mesh_stats(sdata); |
955 | add_mesh_config(sdata); |
956 | #endif |
957 | break; |
958 | case NL80211_IFTYPE_STATION: |
959 | add_sta_files(sdata); |
960 | break; |
961 | case NL80211_IFTYPE_ADHOC: |
962 | add_ibss_files(sdata); |
963 | break; |
964 | case NL80211_IFTYPE_AP: |
965 | add_ap_files(sdata); |
966 | break; |
967 | case NL80211_IFTYPE_AP_VLAN: |
968 | add_vlan_files(sdata); |
969 | break; |
970 | default: |
971 | break; |
972 | } |
973 | } |
974 | |
975 | #undef DEBUGFS_ADD_MODE |
976 | #undef DEBUGFS_ADD |
977 | |
978 | #define DEBUGFS_ADD_MODE(dentry, name, mode) \ |
979 | debugfs_create_file(#name, mode, dentry, \ |
980 | link, &link_##name##_ops) |
981 | |
982 | #define DEBUGFS_ADD(dentry, name) DEBUGFS_ADD_MODE(dentry, name, 0400) |
983 | |
984 | static void add_link_files(struct ieee80211_link_data *link, |
985 | struct dentry *dentry) |
986 | { |
987 | DEBUGFS_ADD(dentry, txpower); |
988 | DEBUGFS_ADD(dentry, user_power_level); |
989 | DEBUGFS_ADD(dentry, ap_power_level); |
990 | |
991 | switch (link->sdata->vif.type) { |
992 | case NL80211_IFTYPE_STATION: |
993 | DEBUGFS_ADD_MODE(dentry, smps, 0600); |
994 | break; |
995 | default: |
996 | break; |
997 | } |
998 | } |
999 | |
1000 | static void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata, |
1001 | bool mld_vif) |
1002 | { |
1003 | char buf[10+IFNAMSIZ]; |
1004 | |
1005 | sprintf(buf, fmt: "netdev:%s" , sdata->name); |
1006 | sdata->vif.debugfs_dir = debugfs_create_dir(name: buf, |
1007 | parent: sdata->local->hw.wiphy->debugfsdir); |
1008 | /* deflink also has this */ |
1009 | sdata->deflink.debugfs_dir = sdata->vif.debugfs_dir; |
1010 | sdata->debugfs.subdir_stations = debugfs_create_dir(name: "stations" , |
1011 | parent: sdata->vif.debugfs_dir); |
1012 | add_files(sdata); |
1013 | if (!mld_vif) |
1014 | add_link_files(link: &sdata->deflink, dentry: sdata->vif.debugfs_dir); |
1015 | } |
1016 | |
1017 | void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata) |
1018 | { |
1019 | if (!sdata->vif.debugfs_dir) |
1020 | return; |
1021 | |
1022 | debugfs_remove_recursive(dentry: sdata->vif.debugfs_dir); |
1023 | sdata->vif.debugfs_dir = NULL; |
1024 | sdata->debugfs.subdir_stations = NULL; |
1025 | } |
1026 | |
1027 | void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata) |
1028 | { |
1029 | struct dentry *dir; |
1030 | char buf[10 + IFNAMSIZ]; |
1031 | |
1032 | dir = sdata->vif.debugfs_dir; |
1033 | |
1034 | if (IS_ERR_OR_NULL(ptr: dir)) |
1035 | return; |
1036 | |
1037 | sprintf(buf, fmt: "netdev:%s" , sdata->name); |
1038 | debugfs_rename(old_dir: dir->d_parent, old_dentry: dir, new_dir: dir->d_parent, new_name: buf); |
1039 | } |
1040 | |
1041 | void ieee80211_debugfs_recreate_netdev(struct ieee80211_sub_if_data *sdata, |
1042 | bool mld_vif) |
1043 | { |
1044 | ieee80211_debugfs_remove_netdev(sdata); |
1045 | ieee80211_debugfs_add_netdev(sdata, mld_vif); |
1046 | |
1047 | if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) { |
1048 | drv_vif_add_debugfs(local: sdata->local, sdata); |
1049 | if (!mld_vif) |
1050 | ieee80211_link_debugfs_drv_add(link: &sdata->deflink); |
1051 | } |
1052 | } |
1053 | |
1054 | void ieee80211_link_debugfs_add(struct ieee80211_link_data *link) |
1055 | { |
1056 | char link_dir_name[10]; |
1057 | |
1058 | if (WARN_ON(!link->sdata->vif.debugfs_dir || link->debugfs_dir)) |
1059 | return; |
1060 | |
1061 | /* For now, this should not be called for non-MLO capable drivers */ |
1062 | if (WARN_ON(!(link->sdata->local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))) |
1063 | return; |
1064 | |
1065 | snprintf(buf: link_dir_name, size: sizeof(link_dir_name), |
1066 | fmt: "link-%d" , link->link_id); |
1067 | |
1068 | link->debugfs_dir = |
1069 | debugfs_create_dir(name: link_dir_name, |
1070 | parent: link->sdata->vif.debugfs_dir); |
1071 | |
1072 | DEBUGFS_ADD(link->debugfs_dir, addr); |
1073 | add_link_files(link, dentry: link->debugfs_dir); |
1074 | } |
1075 | |
1076 | void ieee80211_link_debugfs_remove(struct ieee80211_link_data *link) |
1077 | { |
1078 | if (!link->sdata->vif.debugfs_dir || !link->debugfs_dir) { |
1079 | link->debugfs_dir = NULL; |
1080 | return; |
1081 | } |
1082 | |
1083 | if (link->debugfs_dir == link->sdata->vif.debugfs_dir) { |
1084 | WARN_ON(link != &link->sdata->deflink); |
1085 | link->debugfs_dir = NULL; |
1086 | return; |
1087 | } |
1088 | |
1089 | debugfs_remove_recursive(dentry: link->debugfs_dir); |
1090 | link->debugfs_dir = NULL; |
1091 | } |
1092 | |
1093 | void ieee80211_link_debugfs_drv_add(struct ieee80211_link_data *link) |
1094 | { |
1095 | if (link->sdata->vif.type == NL80211_IFTYPE_MONITOR || |
1096 | WARN_ON(!link->debugfs_dir)) |
1097 | return; |
1098 | |
1099 | drv_link_add_debugfs(local: link->sdata->local, sdata: link->sdata, |
1100 | link_conf: link->conf, dir: link->debugfs_dir); |
1101 | } |
1102 | |
1103 | void ieee80211_link_debugfs_drv_remove(struct ieee80211_link_data *link) |
1104 | { |
1105 | if (!link || !link->debugfs_dir) |
1106 | return; |
1107 | |
1108 | if (WARN_ON(link->debugfs_dir == link->sdata->vif.debugfs_dir)) |
1109 | return; |
1110 | |
1111 | /* Recreate the directory excluding the driver data */ |
1112 | debugfs_remove_recursive(dentry: link->debugfs_dir); |
1113 | link->debugfs_dir = NULL; |
1114 | |
1115 | ieee80211_link_debugfs_add(link); |
1116 | } |
1117 | |