Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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>
13#include <linux/interrupt.h>
14#include <linux/netdevice.h>
15#include <linux/rtnetlink.h>
16#include <linux/slab.h>
17#include <linux/notifier.h>
18#include <net/mac80211.h>
19#include <net/cfg80211.h>
20#include "ieee80211_i.h"
21#include "rate.h"
22#include "debugfs.h"
23#include "debugfs_netdev.h"
24#include "driver-ops.h"
25
26static ssize_t ieee80211_if_read(
27 struct ieee80211_sub_if_data *sdata,
28 char __user *userbuf,
29 size_t count, loff_t *ppos,
30 ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
31{
32 char buf[70];
33 ssize_t ret = -EINVAL;
34
35 read_lock(&dev_base_lock);
36 if (sdata->dev->reg_state == NETREG_REGISTERED)
37 ret = (*format)(sdata, buf, sizeof(buf));
38 read_unlock(&dev_base_lock);
39
40 if (ret >= 0)
41 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
42
43 return ret;
44}
45
46static 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{
52 u8 *buf;
53 ssize_t ret;
54
55 buf = kmalloc(count, GFP_KERNEL);
56 if (!buf)
57 return -ENOMEM;
58
59 ret = -EFAULT;
60 if (copy_from_user(buf, userbuf, count))
61 goto freebuf;
62
63 ret = -ENODEV;
64 rtnl_lock();
65 if (sdata->dev->reg_state == NETREG_REGISTERED)
66 ret = (*write)(sdata, buf, count);
67 rtnl_unlock();
68
69freebuf:
70 kfree(buf);
71 return ret;
72}
73
74#define IEEE80211_IF_FMT(name, field, format_string) \
75static ssize_t ieee80211_if_fmt_##name( \
76 const struct ieee80211_sub_if_data *sdata, char *buf, \
77 int buflen) \
78{ \
79 return scnprintf(buf, buflen, format_string, sdata->field); \
80}
81#define IEEE80211_IF_FMT_DEC(name, field) \
82 IEEE80211_IF_FMT(name, field, "%d\n")
83#define IEEE80211_IF_FMT_HEX(name, field) \
84 IEEE80211_IF_FMT(name, field, "%#x\n")
85#define IEEE80211_IF_FMT_LHEX(name, field) \
86 IEEE80211_IF_FMT(name, field, "%#lx\n")
87#define IEEE80211_IF_FMT_SIZE(name, field) \
88 IEEE80211_IF_FMT(name, field, "%zd\n")
89
90#define IEEE80211_IF_FMT_ATOMIC(name, field) \
91static ssize_t ieee80211_if_fmt_##name( \
92 const struct ieee80211_sub_if_data *sdata, \
93 char *buf, int buflen) \
94{ \
95 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
96}
97
98#define IEEE80211_IF_FMT_MAC(name, field) \
99static ssize_t ieee80211_if_fmt_##name( \
100 const struct ieee80211_sub_if_data *sdata, char *buf, \
101 int buflen) \
102{ \
103 return scnprintf(buf, buflen, "%pM\n", sdata->field); \
104}
105
106#define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \
107static ssize_t ieee80211_if_fmt_##name( \
108 const struct ieee80211_sub_if_data *sdata, \
109 char *buf, int buflen) \
110{ \
111 return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \
112}
113
114#define __IEEE80211_IF_FILE(name, _write) \
115static ssize_t ieee80211_if_read_##name(struct file *file, \
116 char __user *userbuf, \
117 size_t count, loff_t *ppos) \
118{ \
119 return ieee80211_if_read(file->private_data, \
120 userbuf, count, ppos, \
121 ieee80211_if_fmt_##name); \
122} \
123static const struct file_operations name##_ops = { \
124 .read = ieee80211_if_read_##name, \
125 .write = (_write), \
126 .open = mac80211_open_file_generic, \
127 .llseek = generic_file_llseek, \
128}
129
130#define __IEEE80211_IF_FILE_W(name) \
131static ssize_t ieee80211_if_write_##name(struct file *file, \
132 const char __user *userbuf, \
133 size_t count, loff_t *ppos) \
134{ \
135 return ieee80211_if_write(file->private_data, userbuf, count, \
136 ppos, ieee80211_if_parse_##name); \
137} \
138__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
139
140
141#define IEEE80211_IF_FILE(name, field, format) \
142 IEEE80211_IF_FMT_##format(name, field) \
143 __IEEE80211_IF_FILE(name, NULL)
144
145/* common attributes */
146IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
147IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
148 HEX);
149IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
150 HEX);
151IEEE80211_IF_FILE(flags, flags, HEX);
152IEEE80211_IF_FILE(state, state, LHEX);
153IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
154
155/* STA attributes */
156IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
157IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
158IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
159IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
160
161static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
162 enum ieee80211_smps_mode smps_mode)
163{
164 struct ieee80211_local *local = sdata->local;
165 int err;
166
167 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
168 smps_mode == IEEE80211_SMPS_STATIC)
169 return -EINVAL;
170
171 /* auto should be dynamic if in PS mode */
172 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
173 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
174 smps_mode == IEEE80211_SMPS_AUTOMATIC))
175 return -EINVAL;
176
177 /* supported only on managed interfaces for now */
178 if (sdata->vif.type != NL80211_IFTYPE_STATION)
179 return -EOPNOTSUPP;
180
181 mutex_lock(&sdata->u.mgd.mtx);
182 err = __ieee80211_request_smps(sdata, smps_mode);
183 mutex_unlock(&sdata->u.mgd.mtx);
184
185 return err;
186}
187
188static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
189 [IEEE80211_SMPS_AUTOMATIC] = "auto",
190 [IEEE80211_SMPS_OFF] = "off",
191 [IEEE80211_SMPS_STATIC] = "static",
192 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
193};
194
195static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
196 char *buf, int buflen)
197{
198 if (sdata->vif.type != NL80211_IFTYPE_STATION)
199 return -EOPNOTSUPP;
200
201 return snprintf(buf, buflen, "request: %s\nused: %s\n",
202 smps_modes[sdata->u.mgd.req_smps],
203 smps_modes[sdata->u.mgd.ap_smps]);
204}
205
206static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
207 const char *buf, int buflen)
208{
209 enum ieee80211_smps_mode mode;
210
211 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
212 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
213 int err = ieee80211_set_smps(sdata, mode);
214 if (!err)
215 return buflen;
216 return err;
217 }
218 }
219
220 return -EINVAL;
221}
222
223__IEEE80211_IF_FILE_W(smps);
224
225static ssize_t ieee80211_if_fmt_tkip_mic_test(
226 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
227{
228 return -EOPNOTSUPP;
229}
230
231static int hwaddr_aton(const char *txt, u8 *addr)
232{
233 int i;
234
235 for (i = 0; i < ETH_ALEN; i++) {
236 int a, b;
237
238 a = hex_to_bin(*txt++);
239 if (a < 0)
240 return -1;
241 b = hex_to_bin(*txt++);
242 if (b < 0)
243 return -1;
244 *addr++ = (a << 4) | b;
245 if (i < 5 && *txt++ != ':')
246 return -1;
247 }
248
249 return 0;
250}
251
252static ssize_t ieee80211_if_parse_tkip_mic_test(
253 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
254{
255 struct ieee80211_local *local = sdata->local;
256 u8 addr[ETH_ALEN];
257 struct sk_buff *skb;
258 struct ieee80211_hdr *hdr;
259 __le16 fc;
260
261 /*
262 * Assume colon-delimited MAC address with possible white space
263 * following.
264 */
265 if (buflen < 3 * ETH_ALEN - 1)
266 return -EINVAL;
267 if (hwaddr_aton(buf, addr) < 0)
268 return -EINVAL;
269
270 if (!ieee80211_sdata_running(sdata))
271 return -ENOTCONN;
272
273 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
274 if (!skb)
275 return -ENOMEM;
276 skb_reserve(skb, local->hw.extra_tx_headroom);
277
278 hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
279 memset(hdr, 0, 24);
280 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
281
282 switch (sdata->vif.type) {
283 case NL80211_IFTYPE_AP:
284 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
285 /* DA BSSID SA */
286 memcpy(hdr->addr1, addr, ETH_ALEN);
287 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
288 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
289 break;
290 case NL80211_IFTYPE_STATION:
291 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
292 /* BSSID SA DA */
293 if (sdata->vif.bss_conf.bssid == NULL) {
294 dev_kfree_skb(skb);
295 return -ENOTCONN;
296 }
297 memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
298 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
299 memcpy(hdr->addr3, addr, ETH_ALEN);
300 break;
301 default:
302 dev_kfree_skb(skb);
303 return -EOPNOTSUPP;
304 }
305 hdr->frame_control = fc;
306
307 /*
308 * Add some length to the test frame to make it look bit more valid.
309 * The exact contents does not matter since the recipient is required
310 * to drop this because of the Michael MIC failure.
311 */
312 memset(skb_put(skb, 50), 0, 50);
313
314 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
315
316 ieee80211_tx_skb(sdata, skb);
317
318 return buflen;
319}
320
321__IEEE80211_IF_FILE_W(tkip_mic_test);
322
323/* AP attributes */
324IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
325IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
326
327static ssize_t ieee80211_if_fmt_num_buffered_multicast(
328 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
329{
330 return scnprintf(buf, buflen, "%u\n",
331 skb_queue_len(&sdata->u.ap.ps_bc_buf));
332}
333__IEEE80211_IF_FILE(num_buffered_multicast, NULL);
334
335/* IBSS attributes */
336static ssize_t ieee80211_if_fmt_tsf(
337 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
338{
339 struct ieee80211_local *local = sdata->local;
340 u64 tsf;
341
342 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
343
344 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
345}
346
347static ssize_t ieee80211_if_parse_tsf(
348 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
349{
350 struct ieee80211_local *local = sdata->local;
351 unsigned long long tsf;
352 int ret;
353
354 if (strncmp(buf, "reset", 5) == 0) {
355 if (local->ops->reset_tsf) {
356 drv_reset_tsf(local, sdata);
357 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
358 }
359 } else {
360 ret = kstrtoull(buf, 10, &tsf);
361 if (ret < 0)
362 return -EINVAL;
363 if (local->ops->set_tsf) {
364 drv_set_tsf(local, sdata, tsf);
365 wiphy_info(local->hw.wiphy,
366 "debugfs set TSF to %#018llx\n", tsf);
367 }
368 }
369
370 return buflen;
371}
372__IEEE80211_IF_FILE_W(tsf);
373
374
375/* WDS attributes */
376IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
377
378#ifdef CONFIG_MAC80211_MESH
379/* Mesh stats attributes */
380IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
381IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
382IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
383IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
384IEEE80211_IF_FILE(dropped_frames_congestion,
385 u.mesh.mshstats.dropped_frames_congestion, DEC);
386IEEE80211_IF_FILE(dropped_frames_no_route,
387 u.mesh.mshstats.dropped_frames_no_route, DEC);
388IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
389
390/* Mesh parameters */
391IEEE80211_IF_FILE(dot11MeshMaxRetries,
392 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
393IEEE80211_IF_FILE(dot11MeshRetryTimeout,
394 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
395IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
396 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
397IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
398 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
399IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
400IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
401IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
402IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
403 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
404IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
405 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
406IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
407 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
408IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
409 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
410IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
411 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
412IEEE80211_IF_FILE(path_refresh_time,
413 u.mesh.mshcfg.path_refresh_time, DEC);
414IEEE80211_IF_FILE(min_discovery_timeout,
415 u.mesh.mshcfg.min_discovery_timeout, DEC);
416IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
417 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
418IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
419 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
420IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
421 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
422#endif
423
424
425#define DEBUGFS_ADD(name) \
426 debugfs_create_file(#name, 0400, sdata->debugfs.dir, \
427 sdata, &name##_ops);
428
429#define DEBUGFS_ADD_MODE(name, mode) \
430 debugfs_create_file(#name, mode, sdata->debugfs.dir, \
431 sdata, &name##_ops);
432
433static void add_sta_files(struct ieee80211_sub_if_data *sdata)
434{
435 DEBUGFS_ADD(drop_unencrypted);
436 DEBUGFS_ADD(flags);
437 DEBUGFS_ADD(state);
438 DEBUGFS_ADD(channel_type);
439 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
440 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
441
442 DEBUGFS_ADD(bssid);
443 DEBUGFS_ADD(aid);
444 DEBUGFS_ADD(last_beacon);
445 DEBUGFS_ADD(ave_beacon);
446 DEBUGFS_ADD_MODE(smps, 0600);
447 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
448}
449
450static void add_ap_files(struct ieee80211_sub_if_data *sdata)
451{
452 DEBUGFS_ADD(drop_unencrypted);
453 DEBUGFS_ADD(flags);
454 DEBUGFS_ADD(state);
455 DEBUGFS_ADD(channel_type);
456 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
457 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
458
459 DEBUGFS_ADD(num_sta_ps);
460 DEBUGFS_ADD(dtim_count);
461 DEBUGFS_ADD(num_buffered_multicast);
462 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
463}
464
465static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
466{
467 DEBUGFS_ADD_MODE(tsf, 0600);
468}
469
470static void add_wds_files(struct ieee80211_sub_if_data *sdata)
471{
472 DEBUGFS_ADD(drop_unencrypted);
473 DEBUGFS_ADD(flags);
474 DEBUGFS_ADD(state);
475 DEBUGFS_ADD(channel_type);
476 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
477 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
478
479 DEBUGFS_ADD(peer);
480}
481
482static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
483{
484 DEBUGFS_ADD(drop_unencrypted);
485 DEBUGFS_ADD(flags);
486 DEBUGFS_ADD(state);
487 DEBUGFS_ADD(channel_type);
488 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
489 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
490}
491
492static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
493{
494 DEBUGFS_ADD(flags);
495 DEBUGFS_ADD(state);
496 DEBUGFS_ADD(channel_type);
497}
498
499#ifdef CONFIG_MAC80211_MESH
500
501static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
502{
503 struct dentry *dir = debugfs_create_dir("mesh_stats",
504 sdata->debugfs.dir);
505
506#define MESHSTATS_ADD(name)\
507 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
508
509 MESHSTATS_ADD(fwded_mcast);
510 MESHSTATS_ADD(fwded_unicast);
511 MESHSTATS_ADD(fwded_frames);
512 MESHSTATS_ADD(dropped_frames_ttl);
513 MESHSTATS_ADD(dropped_frames_no_route);
514 MESHSTATS_ADD(dropped_frames_congestion);
515 MESHSTATS_ADD(estab_plinks);
516#undef MESHSTATS_ADD
517}
518
519static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
520{
521 struct dentry *dir = debugfs_create_dir("mesh_config",
522 sdata->debugfs.dir);
523
524#define MESHPARAMS_ADD(name) \
525 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
526
527 MESHPARAMS_ADD(dot11MeshMaxRetries);
528 MESHPARAMS_ADD(dot11MeshRetryTimeout);
529 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
530 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
531 MESHPARAMS_ADD(dot11MeshTTL);
532 MESHPARAMS_ADD(element_ttl);
533 MESHPARAMS_ADD(auto_open_plinks);
534 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
535 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
536 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
537 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
538 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
539 MESHPARAMS_ADD(path_refresh_time);
540 MESHPARAMS_ADD(min_discovery_timeout);
541 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
542 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
543 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
544#undef MESHPARAMS_ADD
545}
546#endif
547
548static void add_files(struct ieee80211_sub_if_data *sdata)
549{
550 if (!sdata->debugfs.dir)
551 return;
552
553 switch (sdata->vif.type) {
554 case NL80211_IFTYPE_MESH_POINT:
555#ifdef CONFIG_MAC80211_MESH
556 add_mesh_stats(sdata);
557 add_mesh_config(sdata);
558#endif
559 break;
560 case NL80211_IFTYPE_STATION:
561 add_sta_files(sdata);
562 break;
563 case NL80211_IFTYPE_ADHOC:
564 add_ibss_files(sdata);
565 break;
566 case NL80211_IFTYPE_AP:
567 add_ap_files(sdata);
568 break;
569 case NL80211_IFTYPE_WDS:
570 add_wds_files(sdata);
571 break;
572 case NL80211_IFTYPE_MONITOR:
573 add_monitor_files(sdata);
574 break;
575 case NL80211_IFTYPE_AP_VLAN:
576 add_vlan_files(sdata);
577 break;
578 default:
579 break;
580 }
581}
582
583void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
584{
585 char buf[10+IFNAMSIZ];
586
587 sprintf(buf, "netdev:%s", sdata->name);
588 sdata->debugfs.dir = debugfs_create_dir(buf,
589 sdata->local->hw.wiphy->debugfsdir);
590 if (sdata->debugfs.dir)
591 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
592 sdata->debugfs.dir);
593 add_files(sdata);
594}
595
596void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
597{
598 if (!sdata->debugfs.dir)
599 return;
600
601 debugfs_remove_recursive(sdata->debugfs.dir);
602 sdata->debugfs.dir = NULL;
603}
604
605void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
606{
607 struct dentry *dir;
608 char buf[10 + IFNAMSIZ];
609
610 dir = sdata->debugfs.dir;
611
612 if (!dir)
613 return;
614
615 sprintf(buf, "netdev:%s", sdata->name);
616 if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
617 printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
618 "dir to %s\n", buf);
619}