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e9f207f0 JB |
1 | /* |
2 | * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> | |
3 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | */ | |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/device.h> | |
12 | #include <linux/if.h> | |
28656a11 | 13 | #include <linux/if_ether.h> |
e9f207f0 JB |
14 | #include <linux/interrupt.h> |
15 | #include <linux/netdevice.h> | |
16 | #include <linux/rtnetlink.h> | |
5a0e3ad6 | 17 | #include <linux/slab.h> |
e9f207f0 JB |
18 | #include <linux/notifier.h> |
19 | #include <net/mac80211.h> | |
20 | #include <net/cfg80211.h> | |
21 | #include "ieee80211_i.h" | |
2c8dccc7 | 22 | #include "rate.h" |
e9f207f0 JB |
23 | #include "debugfs.h" |
24 | #include "debugfs_netdev.h" | |
37a41b4a | 25 | #include "driver-ops.h" |
e9f207f0 JB |
26 | |
27 | static ssize_t ieee80211_if_read( | |
28 | struct ieee80211_sub_if_data *sdata, | |
29 | char __user *userbuf, | |
30 | size_t count, loff_t *ppos, | |
31 | ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int)) | |
32 | { | |
8d51dbb8 | 33 | char buf[200]; |
e9f207f0 JB |
34 | ssize_t ret = -EINVAL; |
35 | ||
36 | read_lock(&dev_base_lock); | |
923eaf36 | 37 | ret = (*format)(sdata, buf, sizeof(buf)); |
e9f207f0 | 38 | read_unlock(&dev_base_lock); |
73bb3e4a | 39 | |
681d1190 | 40 | if (ret >= 0) |
73bb3e4a LCC |
41 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret); |
42 | ||
e9f207f0 JB |
43 | return ret; |
44 | } | |
45 | ||
0f78231b JB |
46 | static ssize_t ieee80211_if_write( |
47 | struct ieee80211_sub_if_data *sdata, | |
48 | const char __user *userbuf, | |
49 | size_t count, loff_t *ppos, | |
50 | ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int)) | |
51 | { | |
ada577c1 | 52 | char buf[64]; |
51f5f8ca | 53 | ssize_t ret; |
0f78231b | 54 | |
ada577c1 EP |
55 | if (count >= sizeof(buf)) |
56 | return -E2BIG; | |
0f78231b JB |
57 | |
58 | if (copy_from_user(buf, userbuf, count)) | |
ada577c1 EP |
59 | return -EFAULT; |
60 | buf[count] = '\0'; | |
0f78231b | 61 | |
51f5f8ca | 62 | ret = -ENODEV; |
0f78231b | 63 | rtnl_lock(); |
923eaf36 | 64 | ret = (*write)(sdata, buf, count); |
0f78231b JB |
65 | rtnl_unlock(); |
66 | ||
67 | return ret; | |
68 | } | |
69 | ||
e9f207f0 JB |
70 | #define IEEE80211_IF_FMT(name, field, format_string) \ |
71 | static ssize_t ieee80211_if_fmt_##name( \ | |
72 | const struct ieee80211_sub_if_data *sdata, char *buf, \ | |
73 | int buflen) \ | |
74 | { \ | |
75 | return scnprintf(buf, buflen, format_string, sdata->field); \ | |
76 | } | |
77 | #define IEEE80211_IF_FMT_DEC(name, field) \ | |
78 | IEEE80211_IF_FMT(name, field, "%d\n") | |
79 | #define IEEE80211_IF_FMT_HEX(name, field) \ | |
80 | IEEE80211_IF_FMT(name, field, "%#x\n") | |
4914b3bb BG |
81 | #define IEEE80211_IF_FMT_LHEX(name, field) \ |
82 | IEEE80211_IF_FMT(name, field, "%#lx\n") | |
e9f207f0 JB |
83 | #define IEEE80211_IF_FMT_SIZE(name, field) \ |
84 | IEEE80211_IF_FMT(name, field, "%zd\n") | |
85 | ||
19468413 SW |
86 | #define IEEE80211_IF_FMT_HEXARRAY(name, field) \ |
87 | static ssize_t ieee80211_if_fmt_##name( \ | |
88 | const struct ieee80211_sub_if_data *sdata, \ | |
89 | char *buf, int buflen) \ | |
90 | { \ | |
91 | char *p = buf; \ | |
92 | int i; \ | |
93 | for (i = 0; i < sizeof(sdata->field); i++) { \ | |
94 | p += scnprintf(p, buflen + buf - p, "%.2x ", \ | |
95 | sdata->field[i]); \ | |
96 | } \ | |
97 | p += scnprintf(p, buflen + buf - p, "\n"); \ | |
98 | return p - buf; \ | |
99 | } | |
100 | ||
e9f207f0 JB |
101 | #define IEEE80211_IF_FMT_ATOMIC(name, field) \ |
102 | static ssize_t ieee80211_if_fmt_##name( \ | |
103 | const struct ieee80211_sub_if_data *sdata, \ | |
104 | char *buf, int buflen) \ | |
105 | { \ | |
106 | return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\ | |
107 | } | |
108 | ||
109 | #define IEEE80211_IF_FMT_MAC(name, field) \ | |
110 | static ssize_t ieee80211_if_fmt_##name( \ | |
111 | const struct ieee80211_sub_if_data *sdata, char *buf, \ | |
112 | int buflen) \ | |
113 | { \ | |
0c68ae26 | 114 | return scnprintf(buf, buflen, "%pM\n", sdata->field); \ |
e9f207f0 JB |
115 | } |
116 | ||
78e443e4 BG |
117 | #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \ |
118 | static ssize_t ieee80211_if_fmt_##name( \ | |
119 | const struct ieee80211_sub_if_data *sdata, \ | |
120 | char *buf, int buflen) \ | |
121 | { \ | |
122 | return scnprintf(buf, buflen, "%d\n", \ | |
123 | jiffies_to_msecs(sdata->field)); \ | |
124 | } | |
125 | ||
4cd3c4ec JB |
126 | #define _IEEE80211_IF_FILE_OPS(name, _read, _write) \ |
127 | static const struct file_operations name##_ops = { \ | |
128 | .read = (_read), \ | |
129 | .write = (_write), \ | |
130 | .open = simple_open, \ | |
131 | .llseek = generic_file_llseek, \ | |
132 | } | |
133 | ||
134 | #define _IEEE80211_IF_FILE_R_FN(name) \ | |
e9f207f0 JB |
135 | static ssize_t ieee80211_if_read_##name(struct file *file, \ |
136 | char __user *userbuf, \ | |
137 | size_t count, loff_t *ppos) \ | |
138 | { \ | |
139 | return ieee80211_if_read(file->private_data, \ | |
140 | userbuf, count, ppos, \ | |
141 | ieee80211_if_fmt_##name); \ | |
e9f207f0 JB |
142 | } |
143 | ||
4cd3c4ec | 144 | #define _IEEE80211_IF_FILE_W_FN(name) \ |
0f78231b JB |
145 | static ssize_t ieee80211_if_write_##name(struct file *file, \ |
146 | const char __user *userbuf, \ | |
147 | size_t count, loff_t *ppos) \ | |
148 | { \ | |
149 | return ieee80211_if_write(file->private_data, userbuf, count, \ | |
150 | ppos, ieee80211_if_parse_##name); \ | |
4cd3c4ec JB |
151 | } |
152 | ||
153 | #define IEEE80211_IF_FILE_R(name) \ | |
154 | _IEEE80211_IF_FILE_R_FN(name) \ | |
155 | _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL) | |
156 | ||
157 | #define IEEE80211_IF_FILE_W(name) \ | |
158 | _IEEE80211_IF_FILE_W_FN(name) \ | |
159 | _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name) | |
0f78231b | 160 | |
4cd3c4ec JB |
161 | #define IEEE80211_IF_FILE_RW(name) \ |
162 | _IEEE80211_IF_FILE_R_FN(name) \ | |
163 | _IEEE80211_IF_FILE_W_FN(name) \ | |
164 | _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \ | |
165 | ieee80211_if_write_##name) | |
0f78231b | 166 | |
e9f207f0 | 167 | #define IEEE80211_IF_FILE(name, field, format) \ |
4cd3c4ec JB |
168 | IEEE80211_IF_FMT_##format(name, field) \ |
169 | IEEE80211_IF_FILE_R(name) | |
e9f207f0 JB |
170 | |
171 | /* common attributes */ | |
57fbcce3 | 172 | IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ], |
37eb0b16 | 173 | HEX); |
57fbcce3 | 174 | IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ], |
37eb0b16 | 175 | HEX); |
19468413 | 176 | IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz, |
57fbcce3 | 177 | rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY); |
19468413 | 178 | IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz, |
57fbcce3 | 179 | rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY); |
19468413 | 180 | |
b119ad6e LB |
181 | static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz( |
182 | const struct ieee80211_sub_if_data *sdata, | |
183 | char *buf, int buflen) | |
184 | { | |
185 | int i, len = 0; | |
57fbcce3 | 186 | const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ]; |
b119ad6e LB |
187 | |
188 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) | |
189 | len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]); | |
190 | len += scnprintf(buf + len, buflen - len, "\n"); | |
191 | ||
192 | return len; | |
193 | } | |
194 | ||
195 | IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz); | |
196 | ||
197 | static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz( | |
198 | const struct ieee80211_sub_if_data *sdata, | |
199 | char *buf, int buflen) | |
200 | { | |
201 | int i, len = 0; | |
57fbcce3 | 202 | const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ]; |
b119ad6e LB |
203 | |
204 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) | |
205 | len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]); | |
206 | len += scnprintf(buf + len, buflen - len, "\n"); | |
207 | ||
208 | return len; | |
209 | } | |
210 | ||
211 | IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz); | |
212 | ||
4914b3bb BG |
213 | IEEE80211_IF_FILE(flags, flags, HEX); |
214 | IEEE80211_IF_FILE(state, state, LHEX); | |
1ea6f9c0 JB |
215 | IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC); |
216 | IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC); | |
217 | IEEE80211_IF_FILE(user_power_level, user_power_level, DEC); | |
e9f207f0 | 218 | |
08643315 JB |
219 | static ssize_t |
220 | ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata, | |
221 | char *buf, int buflen) | |
222 | { | |
223 | int len; | |
224 | ||
225 | len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n", | |
226 | sdata->vif.hw_queue[IEEE80211_AC_VO], | |
227 | sdata->vif.hw_queue[IEEE80211_AC_VI], | |
228 | sdata->vif.hw_queue[IEEE80211_AC_BE], | |
229 | sdata->vif.hw_queue[IEEE80211_AC_BK]); | |
230 | ||
231 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
232 | len += scnprintf(buf + len, buflen - len, "cab queue: %d\n", | |
233 | sdata->vif.cab_queue); | |
234 | ||
235 | return len; | |
236 | } | |
4cd3c4ec | 237 | IEEE80211_IF_FILE_R(hw_queues); |
08643315 | 238 | |
46900298 | 239 | /* STA attributes */ |
46900298 | 240 | IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC); |
46900298 | 241 | IEEE80211_IF_FILE(aid, u.mgd.aid, DEC); |
78e443e4 | 242 | IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS); |
e9f207f0 | 243 | |
0f78231b JB |
244 | static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata, |
245 | enum ieee80211_smps_mode smps_mode) | |
246 | { | |
247 | struct ieee80211_local *local = sdata->local; | |
248 | int err; | |
249 | ||
0d8614b4 | 250 | if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) && |
0f78231b JB |
251 | smps_mode == IEEE80211_SMPS_STATIC) |
252 | return -EINVAL; | |
253 | ||
254 | /* auto should be dynamic if in PS mode */ | |
0d8614b4 | 255 | if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) && |
0f78231b JB |
256 | (smps_mode == IEEE80211_SMPS_DYNAMIC || |
257 | smps_mode == IEEE80211_SMPS_AUTOMATIC)) | |
258 | return -EINVAL; | |
259 | ||
687da132 EG |
260 | if (sdata->vif.type != NL80211_IFTYPE_STATION && |
261 | sdata->vif.type != NL80211_IFTYPE_AP) | |
0f78231b JB |
262 | return -EOPNOTSUPP; |
263 | ||
8d61ffa5 | 264 | sdata_lock(sdata); |
687da132 EG |
265 | if (sdata->vif.type == NL80211_IFTYPE_STATION) |
266 | err = __ieee80211_request_smps_mgd(sdata, smps_mode); | |
267 | else | |
268 | err = __ieee80211_request_smps_ap(sdata, smps_mode); | |
8d61ffa5 | 269 | sdata_unlock(sdata); |
0f78231b JB |
270 | |
271 | return err; | |
272 | } | |
273 | ||
274 | static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { | |
275 | [IEEE80211_SMPS_AUTOMATIC] = "auto", | |
276 | [IEEE80211_SMPS_OFF] = "off", | |
277 | [IEEE80211_SMPS_STATIC] = "static", | |
278 | [IEEE80211_SMPS_DYNAMIC] = "dynamic", | |
279 | }; | |
280 | ||
281 | static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata, | |
282 | char *buf, int buflen) | |
283 | { | |
687da132 EG |
284 | if (sdata->vif.type == NL80211_IFTYPE_STATION) |
285 | return snprintf(buf, buflen, "request: %s\nused: %s\n", | |
286 | smps_modes[sdata->u.mgd.req_smps], | |
287 | smps_modes[sdata->smps_mode]); | |
288 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
289 | return snprintf(buf, buflen, "request: %s\nused: %s\n", | |
290 | smps_modes[sdata->u.ap.req_smps], | |
291 | smps_modes[sdata->smps_mode]); | |
292 | return -EINVAL; | |
0f78231b JB |
293 | } |
294 | ||
295 | static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata, | |
296 | const char *buf, int buflen) | |
297 | { | |
298 | enum ieee80211_smps_mode mode; | |
299 | ||
300 | for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) { | |
301 | if (strncmp(buf, smps_modes[mode], buflen) == 0) { | |
302 | int err = ieee80211_set_smps(sdata, mode); | |
303 | if (!err) | |
304 | return buflen; | |
305 | return err; | |
306 | } | |
307 | } | |
308 | ||
309 | return -EINVAL; | |
310 | } | |
4cd3c4ec | 311 | IEEE80211_IF_FILE_RW(smps); |
681d1190 | 312 | |
681d1190 JM |
313 | static ssize_t ieee80211_if_parse_tkip_mic_test( |
314 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) | |
315 | { | |
316 | struct ieee80211_local *local = sdata->local; | |
317 | u8 addr[ETH_ALEN]; | |
318 | struct sk_buff *skb; | |
319 | struct ieee80211_hdr *hdr; | |
320 | __le16 fc; | |
321 | ||
28656a11 | 322 | if (!mac_pton(buf, addr)) |
681d1190 JM |
323 | return -EINVAL; |
324 | ||
325 | if (!ieee80211_sdata_running(sdata)) | |
326 | return -ENOTCONN; | |
327 | ||
328 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100); | |
329 | if (!skb) | |
330 | return -ENOMEM; | |
331 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
332 | ||
333 | hdr = (struct ieee80211_hdr *) skb_put(skb, 24); | |
334 | memset(hdr, 0, 24); | |
335 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA); | |
336 | ||
337 | switch (sdata->vif.type) { | |
338 | case NL80211_IFTYPE_AP: | |
339 | fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); | |
340 | /* DA BSSID SA */ | |
341 | memcpy(hdr->addr1, addr, ETH_ALEN); | |
342 | memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); | |
343 | memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN); | |
344 | break; | |
345 | case NL80211_IFTYPE_STATION: | |
346 | fc |= cpu_to_le16(IEEE80211_FCTL_TODS); | |
347 | /* BSSID SA DA */ | |
8d61ffa5 | 348 | sdata_lock(sdata); |
41c97a20 | 349 | if (!sdata->u.mgd.associated) { |
8d61ffa5 | 350 | sdata_unlock(sdata); |
681d1190 JM |
351 | dev_kfree_skb(skb); |
352 | return -ENOTCONN; | |
353 | } | |
41c97a20 | 354 | memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN); |
681d1190 JM |
355 | memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); |
356 | memcpy(hdr->addr3, addr, ETH_ALEN); | |
8d61ffa5 | 357 | sdata_unlock(sdata); |
681d1190 JM |
358 | break; |
359 | default: | |
360 | dev_kfree_skb(skb); | |
361 | return -EOPNOTSUPP; | |
362 | } | |
363 | hdr->frame_control = fc; | |
364 | ||
365 | /* | |
366 | * Add some length to the test frame to make it look bit more valid. | |
367 | * The exact contents does not matter since the recipient is required | |
368 | * to drop this because of the Michael MIC failure. | |
369 | */ | |
370 | memset(skb_put(skb, 50), 0, 50); | |
371 | ||
372 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE; | |
373 | ||
374 | ieee80211_tx_skb(sdata, skb); | |
375 | ||
376 | return buflen; | |
377 | } | |
4cd3c4ec | 378 | IEEE80211_IF_FILE_W(tkip_mic_test); |
681d1190 | 379 | |
802ee9ec EP |
380 | static ssize_t ieee80211_if_parse_beacon_loss( |
381 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) | |
382 | { | |
383 | if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc) | |
384 | return -ENOTCONN; | |
385 | ||
386 | ieee80211_beacon_loss(&sdata->vif); | |
387 | ||
388 | return buflen; | |
389 | } | |
390 | IEEE80211_IF_FILE_W(beacon_loss); | |
391 | ||
dc41e4d4 EP |
392 | static ssize_t ieee80211_if_fmt_uapsd_queues( |
393 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) | |
394 | { | |
395 | const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
396 | ||
397 | return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues); | |
398 | } | |
399 | ||
400 | static ssize_t ieee80211_if_parse_uapsd_queues( | |
401 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) | |
402 | { | |
403 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
404 | u8 val; | |
405 | int ret; | |
406 | ||
407 | ret = kstrtou8(buf, 0, &val); | |
408 | if (ret) | |
409 | return ret; | |
410 | ||
411 | if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
412 | return -ERANGE; | |
413 | ||
414 | ifmgd->uapsd_queues = val; | |
415 | ||
416 | return buflen; | |
417 | } | |
4cd3c4ec | 418 | IEEE80211_IF_FILE_RW(uapsd_queues); |
dc41e4d4 EP |
419 | |
420 | static ssize_t ieee80211_if_fmt_uapsd_max_sp_len( | |
421 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) | |
422 | { | |
423 | const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
424 | ||
425 | return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len); | |
426 | } | |
427 | ||
428 | static ssize_t ieee80211_if_parse_uapsd_max_sp_len( | |
429 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) | |
430 | { | |
431 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
432 | unsigned long val; | |
433 | int ret; | |
434 | ||
435 | ret = kstrtoul(buf, 0, &val); | |
436 | if (ret) | |
437 | return -EINVAL; | |
438 | ||
439 | if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
440 | return -ERANGE; | |
441 | ||
442 | ifmgd->uapsd_max_sp_len = val; | |
443 | ||
444 | return buflen; | |
445 | } | |
4cd3c4ec | 446 | IEEE80211_IF_FILE_RW(uapsd_max_sp_len); |
dc41e4d4 | 447 | |
82c0cc90 AN |
448 | static ssize_t ieee80211_if_fmt_tdls_wider_bw( |
449 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) | |
450 | { | |
451 | const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
452 | bool tdls_wider_bw; | |
453 | ||
454 | tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) && | |
455 | !ifmgd->tdls_wider_bw_prohibited; | |
456 | ||
457 | return snprintf(buf, buflen, "%d\n", tdls_wider_bw); | |
458 | } | |
459 | ||
460 | static ssize_t ieee80211_if_parse_tdls_wider_bw( | |
461 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) | |
462 | { | |
463 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
464 | u8 val; | |
465 | int ret; | |
466 | ||
467 | ret = kstrtou8(buf, 0, &val); | |
468 | if (ret) | |
469 | return ret; | |
470 | ||
471 | ifmgd->tdls_wider_bw_prohibited = !val; | |
472 | return buflen; | |
473 | } | |
474 | IEEE80211_IF_FILE_RW(tdls_wider_bw); | |
475 | ||
e9f207f0 | 476 | /* AP attributes */ |
030ef8f8 | 477 | IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC); |
d012a605 MP |
478 | IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC); |
479 | IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC); | |
72f15d53 | 480 | IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC); |
e9f207f0 JB |
481 | |
482 | static ssize_t ieee80211_if_fmt_num_buffered_multicast( | |
483 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) | |
484 | { | |
485 | return scnprintf(buf, buflen, "%u\n", | |
d012a605 | 486 | skb_queue_len(&sdata->u.ap.ps.bc_buf)); |
e9f207f0 | 487 | } |
4cd3c4ec | 488 | IEEE80211_IF_FILE_R(num_buffered_multicast); |
e9f207f0 | 489 | |
8d51dbb8 THJ |
490 | static ssize_t ieee80211_if_fmt_aqm( |
491 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) | |
492 | { | |
493 | struct ieee80211_local *local = sdata->local; | |
494 | struct txq_info *txqi = to_txq_info(sdata->vif.txq); | |
495 | int len; | |
496 | ||
497 | spin_lock_bh(&local->fq.lock); | |
498 | rcu_read_lock(); | |
499 | ||
500 | len = scnprintf(buf, | |
501 | buflen, | |
502 | "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n" | |
503 | "%u %u %u %u %u %u %u %u %u %u\n", | |
504 | txqi->txq.ac, | |
505 | txqi->tin.backlog_bytes, | |
506 | txqi->tin.backlog_packets, | |
507 | txqi->tin.flows, | |
508 | txqi->cstats.drop_count, | |
509 | txqi->cstats.ecn_mark, | |
510 | txqi->tin.overlimit, | |
511 | txqi->tin.collisions, | |
512 | txqi->tin.tx_bytes, | |
513 | txqi->tin.tx_packets); | |
514 | ||
515 | rcu_read_unlock(); | |
516 | spin_unlock_bh(&local->fq.lock); | |
517 | ||
518 | return len; | |
519 | } | |
520 | IEEE80211_IF_FILE_R(aqm); | |
521 | ||
37a41b4a EP |
522 | /* IBSS attributes */ |
523 | static ssize_t ieee80211_if_fmt_tsf( | |
524 | const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) | |
525 | { | |
526 | struct ieee80211_local *local = sdata->local; | |
527 | u64 tsf; | |
528 | ||
529 | tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata); | |
530 | ||
531 | return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf); | |
532 | } | |
533 | ||
534 | static ssize_t ieee80211_if_parse_tsf( | |
535 | struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) | |
536 | { | |
537 | struct ieee80211_local *local = sdata->local; | |
538 | unsigned long long tsf; | |
539 | int ret; | |
9bdd3a6b | 540 | int tsf_is_delta = 0; |
37a41b4a EP |
541 | |
542 | if (strncmp(buf, "reset", 5) == 0) { | |
543 | if (local->ops->reset_tsf) { | |
544 | drv_reset_tsf(local, sdata); | |
545 | wiphy_info(local->hw.wiphy, "debugfs reset TSF\n"); | |
546 | } | |
547 | } else { | |
9bdd3a6b JC |
548 | if (buflen > 10 && buf[1] == '=') { |
549 | if (buf[0] == '+') | |
550 | tsf_is_delta = 1; | |
551 | else if (buf[0] == '-') | |
552 | tsf_is_delta = -1; | |
553 | else | |
554 | return -EINVAL; | |
555 | buf += 2; | |
556 | } | |
37a41b4a EP |
557 | ret = kstrtoull(buf, 10, &tsf); |
558 | if (ret < 0) | |
6fc1da9b | 559 | return ret; |
354d381b PT |
560 | if (tsf_is_delta && local->ops->offset_tsf) { |
561 | drv_offset_tsf(local, sdata, tsf_is_delta * tsf); | |
562 | wiphy_info(local->hw.wiphy, | |
563 | "debugfs offset TSF by %018lld\n", | |
564 | tsf_is_delta * tsf); | |
565 | } else if (local->ops->set_tsf) { | |
566 | if (tsf_is_delta) | |
567 | tsf = drv_get_tsf(local, sdata) + | |
568 | tsf_is_delta * tsf; | |
37a41b4a EP |
569 | drv_set_tsf(local, sdata, tsf); |
570 | wiphy_info(local->hw.wiphy, | |
571 | "debugfs set TSF to %#018llx\n", tsf); | |
572 | } | |
573 | } | |
574 | ||
057d5f4b | 575 | ieee80211_recalc_dtim(local, sdata); |
37a41b4a EP |
576 | return buflen; |
577 | } | |
4cd3c4ec | 578 | IEEE80211_IF_FILE_RW(tsf); |
37a41b4a EP |
579 | |
580 | ||
e9f207f0 JB |
581 | /* WDS attributes */ |
582 | IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC); | |
583 | ||
9f42f607 | 584 | #ifdef CONFIG_MAC80211_MESH |
d4a5a489 AN |
585 | IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC); |
586 | ||
9f42f607 | 587 | /* Mesh stats attributes */ |
c8a61a7d DW |
588 | IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC); |
589 | IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC); | |
472dbc45 JB |
590 | IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC); |
591 | IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC); | |
cfee66b0 | 592 | IEEE80211_IF_FILE(dropped_frames_congestion, |
a4f606ea | 593 | u.mesh.mshstats.dropped_frames_congestion, DEC); |
9f42f607 | 594 | IEEE80211_IF_FILE(dropped_frames_no_route, |
a4f606ea | 595 | u.mesh.mshstats.dropped_frames_no_route, DEC); |
9f42f607 LCC |
596 | |
597 | /* Mesh parameters */ | |
36ff382d | 598 | IEEE80211_IF_FILE(dot11MeshMaxRetries, |
a4f606ea | 599 | u.mesh.mshcfg.dot11MeshMaxRetries, DEC); |
36ff382d | 600 | IEEE80211_IF_FILE(dot11MeshRetryTimeout, |
a4f606ea | 601 | u.mesh.mshcfg.dot11MeshRetryTimeout, DEC); |
36ff382d | 602 | IEEE80211_IF_FILE(dot11MeshConfirmTimeout, |
a4f606ea | 603 | u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC); |
36ff382d | 604 | IEEE80211_IF_FILE(dot11MeshHoldingTimeout, |
a4f606ea | 605 | u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC); |
36ff382d | 606 | IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC); |
45904f21 | 607 | IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC); |
36ff382d JB |
608 | IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC); |
609 | IEEE80211_IF_FILE(dot11MeshMaxPeerLinks, | |
a4f606ea | 610 | u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC); |
36ff382d | 611 | IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout, |
a4f606ea | 612 | u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC); |
36ff382d | 613 | IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval, |
a4f606ea | 614 | u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC); |
dca7e943 | 615 | IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval, |
a4f606ea | 616 | u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC); |
36ff382d | 617 | IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime, |
a4f606ea | 618 | u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC); |
36ff382d | 619 | IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries, |
a4f606ea | 620 | u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC); |
36ff382d | 621 | IEEE80211_IF_FILE(path_refresh_time, |
a4f606ea | 622 | u.mesh.mshcfg.path_refresh_time, DEC); |
36ff382d | 623 | IEEE80211_IF_FILE(min_discovery_timeout, |
a4f606ea | 624 | u.mesh.mshcfg.min_discovery_timeout, DEC); |
63c5723b | 625 | IEEE80211_IF_FILE(dot11MeshHWMPRootMode, |
a4f606ea | 626 | u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC); |
16dd7267 | 627 | IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol, |
a4f606ea | 628 | u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC); |
0507e159 | 629 | IEEE80211_IF_FILE(dot11MeshHWMPRannInterval, |
a4f606ea | 630 | u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC); |
94f90656 | 631 | IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC); |
55335137 | 632 | IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC); |
4416f5d2 | 633 | IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC); |
ac1073a6 CYY |
634 | IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout, |
635 | u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC); | |
636 | IEEE80211_IF_FILE(dot11MeshHWMProotInterval, | |
637 | u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC); | |
728b19e5 CYY |
638 | IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval, |
639 | u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC); | |
3f52b7e3 MP |
640 | IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC); |
641 | IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration, | |
642 | u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC); | |
9f42f607 LCC |
643 | #endif |
644 | ||
0f78231b | 645 | #define DEBUGFS_ADD_MODE(name, mode) \ |
ddbfe860 | 646 | debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \ |
0f78231b JB |
647 | sdata, &name##_ops); |
648 | ||
fcb2c9e1 FF |
649 | #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400) |
650 | ||
651 | static void add_common_files(struct ieee80211_sub_if_data *sdata) | |
e9f207f0 | 652 | { |
2d46d7c1 JB |
653 | DEBUGFS_ADD(rc_rateidx_mask_2ghz); |
654 | DEBUGFS_ADD(rc_rateidx_mask_5ghz); | |
19468413 SW |
655 | DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz); |
656 | DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz); | |
b119ad6e LB |
657 | DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz); |
658 | DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz); | |
08643315 | 659 | DEBUGFS_ADD(hw_queues); |
8d51dbb8 THJ |
660 | |
661 | if (sdata->local->ops->wake_tx_queue) | |
662 | DEBUGFS_ADD(aqm); | |
fcb2c9e1 | 663 | } |
3e122be0 | 664 | |
fcb2c9e1 FF |
665 | static void add_sta_files(struct ieee80211_sub_if_data *sdata) |
666 | { | |
2d46d7c1 JB |
667 | DEBUGFS_ADD(bssid); |
668 | DEBUGFS_ADD(aid); | |
78e443e4 | 669 | DEBUGFS_ADD(beacon_timeout); |
0f78231b | 670 | DEBUGFS_ADD_MODE(smps, 0600); |
681d1190 | 671 | DEBUGFS_ADD_MODE(tkip_mic_test, 0200); |
802ee9ec | 672 | DEBUGFS_ADD_MODE(beacon_loss, 0200); |
dc41e4d4 EP |
673 | DEBUGFS_ADD_MODE(uapsd_queues, 0600); |
674 | DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600); | |
82c0cc90 | 675 | DEBUGFS_ADD_MODE(tdls_wider_bw, 0600); |
e9f207f0 JB |
676 | } |
677 | ||
678 | static void add_ap_files(struct ieee80211_sub_if_data *sdata) | |
679 | { | |
030ef8f8 | 680 | DEBUGFS_ADD(num_mcast_sta); |
687da132 | 681 | DEBUGFS_ADD_MODE(smps, 0600); |
2d46d7c1 JB |
682 | DEBUGFS_ADD(num_sta_ps); |
683 | DEBUGFS_ADD(dtim_count); | |
684 | DEBUGFS_ADD(num_buffered_multicast); | |
681d1190 | 685 | DEBUGFS_ADD_MODE(tkip_mic_test, 0200); |
e9f207f0 JB |
686 | } |
687 | ||
72f15d53 MB |
688 | static void add_vlan_files(struct ieee80211_sub_if_data *sdata) |
689 | { | |
690 | /* add num_mcast_sta_vlan using name num_mcast_sta */ | |
691 | debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir, | |
692 | sdata, &num_mcast_sta_vlan_ops); | |
693 | } | |
694 | ||
37a41b4a EP |
695 | static void add_ibss_files(struct ieee80211_sub_if_data *sdata) |
696 | { | |
697 | DEBUGFS_ADD_MODE(tsf, 0600); | |
698 | } | |
699 | ||
e9f207f0 JB |
700 | static void add_wds_files(struct ieee80211_sub_if_data *sdata) |
701 | { | |
2d46d7c1 | 702 | DEBUGFS_ADD(peer); |
e9f207f0 JB |
703 | } |
704 | ||
9f42f607 | 705 | #ifdef CONFIG_MAC80211_MESH |
9f42f607 | 706 | |
12ce8ba3 JC |
707 | static void add_mesh_files(struct ieee80211_sub_if_data *sdata) |
708 | { | |
709 | DEBUGFS_ADD_MODE(tsf, 0600); | |
d4a5a489 | 710 | DEBUGFS_ADD_MODE(estab_plinks, 0400); |
12ce8ba3 JC |
711 | } |
712 | ||
9f42f607 LCC |
713 | static void add_mesh_stats(struct ieee80211_sub_if_data *sdata) |
714 | { | |
7bcfaf2f | 715 | struct dentry *dir = debugfs_create_dir("mesh_stats", |
ddbfe860 | 716 | sdata->vif.debugfs_dir); |
7bcfaf2f JB |
717 | #define MESHSTATS_ADD(name)\ |
718 | debugfs_create_file(#name, 0400, dir, sdata, &name##_ops); | |
719 | ||
c8a61a7d DW |
720 | MESHSTATS_ADD(fwded_mcast); |
721 | MESHSTATS_ADD(fwded_unicast); | |
9f42f607 LCC |
722 | MESHSTATS_ADD(fwded_frames); |
723 | MESHSTATS_ADD(dropped_frames_ttl); | |
724 | MESHSTATS_ADD(dropped_frames_no_route); | |
cfee66b0 | 725 | MESHSTATS_ADD(dropped_frames_congestion); |
7bcfaf2f | 726 | #undef MESHSTATS_ADD |
9f42f607 LCC |
727 | } |
728 | ||
9f42f607 LCC |
729 | static void add_mesh_config(struct ieee80211_sub_if_data *sdata) |
730 | { | |
7bcfaf2f | 731 | struct dentry *dir = debugfs_create_dir("mesh_config", |
ddbfe860 | 732 | sdata->vif.debugfs_dir); |
7bcfaf2f JB |
733 | |
734 | #define MESHPARAMS_ADD(name) \ | |
735 | debugfs_create_file(#name, 0600, dir, sdata, &name##_ops); | |
736 | ||
9f42f607 LCC |
737 | MESHPARAMS_ADD(dot11MeshMaxRetries); |
738 | MESHPARAMS_ADD(dot11MeshRetryTimeout); | |
739 | MESHPARAMS_ADD(dot11MeshConfirmTimeout); | |
740 | MESHPARAMS_ADD(dot11MeshHoldingTimeout); | |
741 | MESHPARAMS_ADD(dot11MeshTTL); | |
45904f21 | 742 | MESHPARAMS_ADD(element_ttl); |
9f42f607 LCC |
743 | MESHPARAMS_ADD(auto_open_plinks); |
744 | MESHPARAMS_ADD(dot11MeshMaxPeerLinks); | |
745 | MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout); | |
746 | MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval); | |
dca7e943 | 747 | MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval); |
9f42f607 LCC |
748 | MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime); |
749 | MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries); | |
750 | MESHPARAMS_ADD(path_refresh_time); | |
751 | MESHPARAMS_ADD(min_discovery_timeout); | |
699403db | 752 | MESHPARAMS_ADD(dot11MeshHWMPRootMode); |
0507e159 | 753 | MESHPARAMS_ADD(dot11MeshHWMPRannInterval); |
8c06e8c0 | 754 | MESHPARAMS_ADD(dot11MeshForwarding); |
16dd7267 | 755 | MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol); |
55335137 | 756 | MESHPARAMS_ADD(rssi_threshold); |
4416f5d2 | 757 | MESHPARAMS_ADD(ht_opmode); |
ac1073a6 CYY |
758 | MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout); |
759 | MESHPARAMS_ADD(dot11MeshHWMProotInterval); | |
728b19e5 | 760 | MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval); |
3f52b7e3 MP |
761 | MESHPARAMS_ADD(power_mode); |
762 | MESHPARAMS_ADD(dot11MeshAwakeWindowDuration); | |
7bcfaf2f | 763 | #undef MESHPARAMS_ADD |
9f42f607 LCC |
764 | } |
765 | #endif | |
766 | ||
e9f207f0 JB |
767 | static void add_files(struct ieee80211_sub_if_data *sdata) |
768 | { | |
ddbfe860 | 769 | if (!sdata->vif.debugfs_dir) |
e9f207f0 JB |
770 | return; |
771 | ||
fcb2c9e1 FF |
772 | DEBUGFS_ADD(flags); |
773 | DEBUGFS_ADD(state); | |
1ea6f9c0 JB |
774 | DEBUGFS_ADD(txpower); |
775 | DEBUGFS_ADD(user_power_level); | |
776 | DEBUGFS_ADD(ap_power_level); | |
fcb2c9e1 FF |
777 | |
778 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR) | |
779 | add_common_files(sdata); | |
780 | ||
51fb61e7 | 781 | switch (sdata->vif.type) { |
05c914fe | 782 | case NL80211_IFTYPE_MESH_POINT: |
9f42f607 | 783 | #ifdef CONFIG_MAC80211_MESH |
12ce8ba3 | 784 | add_mesh_files(sdata); |
9f42f607 LCC |
785 | add_mesh_stats(sdata); |
786 | add_mesh_config(sdata); | |
787 | #endif | |
472dbc45 | 788 | break; |
05c914fe | 789 | case NL80211_IFTYPE_STATION: |
e9f207f0 JB |
790 | add_sta_files(sdata); |
791 | break; | |
46900298 | 792 | case NL80211_IFTYPE_ADHOC: |
37a41b4a | 793 | add_ibss_files(sdata); |
46900298 | 794 | break; |
05c914fe | 795 | case NL80211_IFTYPE_AP: |
e9f207f0 JB |
796 | add_ap_files(sdata); |
797 | break; | |
72f15d53 MB |
798 | case NL80211_IFTYPE_AP_VLAN: |
799 | add_vlan_files(sdata); | |
800 | break; | |
05c914fe | 801 | case NL80211_IFTYPE_WDS: |
e9f207f0 JB |
802 | add_wds_files(sdata); |
803 | break; | |
e9f207f0 JB |
804 | default: |
805 | break; | |
806 | } | |
807 | } | |
808 | ||
e9f207f0 JB |
809 | void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata) |
810 | { | |
811 | char buf[10+IFNAMSIZ]; | |
812 | ||
47846c9b | 813 | sprintf(buf, "netdev:%s", sdata->name); |
ddbfe860 | 814 | sdata->vif.debugfs_dir = debugfs_create_dir(buf, |
e9f207f0 | 815 | sdata->local->hw.wiphy->debugfsdir); |
ddbfe860 | 816 | if (sdata->vif.debugfs_dir) |
295bafb4 | 817 | sdata->debugfs.subdir_stations = debugfs_create_dir("stations", |
ddbfe860 | 818 | sdata->vif.debugfs_dir); |
75636525 | 819 | add_files(sdata); |
e9f207f0 JB |
820 | } |
821 | ||
822 | void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata) | |
823 | { | |
ddbfe860 | 824 | if (!sdata->vif.debugfs_dir) |
7bcfaf2f JB |
825 | return; |
826 | ||
ddbfe860 SG |
827 | debugfs_remove_recursive(sdata->vif.debugfs_dir); |
828 | sdata->vif.debugfs_dir = NULL; | |
4479004e | 829 | sdata->debugfs.subdir_stations = NULL; |
e9f207f0 JB |
830 | } |
831 | ||
47846c9b | 832 | void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata) |
e9f207f0 | 833 | { |
7c8081eb | 834 | struct dentry *dir; |
47846c9b | 835 | char buf[10 + IFNAMSIZ]; |
3e122be0 | 836 | |
ddbfe860 | 837 | dir = sdata->vif.debugfs_dir; |
c74e90a9 JB |
838 | |
839 | if (!dir) | |
47846c9b | 840 | return; |
c74e90a9 | 841 | |
47846c9b | 842 | sprintf(buf, "netdev:%s", sdata->name); |
7c8081eb | 843 | if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf)) |
bdcbd8e0 JB |
844 | sdata_err(sdata, |
845 | "debugfs: failed to rename debugfs dir to %s\n", | |
846 | buf); | |
e9f207f0 | 847 | } |