blob: 83d4289d954bfacd1db317ec71b709623b44fa82 [file] [log] [blame]
Jiri Bence9f207f2007-05-05 11:46:38 -07001/*
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>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090016#include <linux/slab.h>
Jiri Bence9f207f2007-05-05 11:46:38 -070017#include <linux/notifier.h>
18#include <net/mac80211.h>
19#include <net/cfg80211.h>
20#include "ieee80211_i.h"
Johannes Berg2c8dccc2008-04-08 15:14:40 -040021#include "rate.h"
Jiri Bence9f207f2007-05-05 11:46:38 -070022#include "debugfs.h"
23#include "debugfs_netdev.h"
24
25static ssize_t ieee80211_if_read(
26 struct ieee80211_sub_if_data *sdata,
27 char __user *userbuf,
28 size_t count, loff_t *ppos,
29 ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
30{
31 char buf[70];
32 ssize_t ret = -EINVAL;
33
34 read_lock(&dev_base_lock);
Luis Carlos Cobo73bb3e42008-03-31 15:10:22 -070035 if (sdata->dev->reg_state == NETREG_REGISTERED)
Jiri Bence9f207f2007-05-05 11:46:38 -070036 ret = (*format)(sdata, buf, sizeof(buf));
Jiri Bence9f207f2007-05-05 11:46:38 -070037 read_unlock(&dev_base_lock);
Luis Carlos Cobo73bb3e42008-03-31 15:10:22 -070038
39 if (ret != -EINVAL)
40 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
41
Jiri Bence9f207f2007-05-05 11:46:38 -070042 return ret;
43}
44
Johannes Berg0f782312009-12-01 13:37:02 +010045static ssize_t ieee80211_if_write(
46 struct ieee80211_sub_if_data *sdata,
47 const char __user *userbuf,
48 size_t count, loff_t *ppos,
49 ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
50{
51 u8 *buf;
Eric Dumazet51f5f8c2010-03-10 17:13:36 +010052 ssize_t ret;
Johannes Berg0f782312009-12-01 13:37:02 +010053
Eric Dumazet51f5f8c2010-03-10 17:13:36 +010054 buf = kmalloc(count, GFP_KERNEL);
Johannes Berg0f782312009-12-01 13:37:02 +010055 if (!buf)
56 return -ENOMEM;
57
Eric Dumazet51f5f8c2010-03-10 17:13:36 +010058 ret = -EFAULT;
Johannes Berg0f782312009-12-01 13:37:02 +010059 if (copy_from_user(buf, userbuf, count))
Eric Dumazet51f5f8c2010-03-10 17:13:36 +010060 goto freebuf;
Johannes Berg0f782312009-12-01 13:37:02 +010061
Eric Dumazet51f5f8c2010-03-10 17:13:36 +010062 ret = -ENODEV;
Johannes Berg0f782312009-12-01 13:37:02 +010063 rtnl_lock();
64 if (sdata->dev->reg_state == NETREG_REGISTERED)
65 ret = (*write)(sdata, buf, count);
66 rtnl_unlock();
67
Eric Dumazet51f5f8c2010-03-10 17:13:36 +010068freebuf:
69 kfree(buf);
Johannes Berg0f782312009-12-01 13:37:02 +010070 return ret;
71}
72
Jiri Bence9f207f2007-05-05 11:46:38 -070073#define IEEE80211_IF_FMT(name, field, format_string) \
74static ssize_t ieee80211_if_fmt_##name( \
75 const struct ieee80211_sub_if_data *sdata, char *buf, \
76 int buflen) \
77{ \
78 return scnprintf(buf, buflen, format_string, sdata->field); \
79}
80#define IEEE80211_IF_FMT_DEC(name, field) \
81 IEEE80211_IF_FMT(name, field, "%d\n")
82#define IEEE80211_IF_FMT_HEX(name, field) \
83 IEEE80211_IF_FMT(name, field, "%#x\n")
84#define IEEE80211_IF_FMT_SIZE(name, field) \
85 IEEE80211_IF_FMT(name, field, "%zd\n")
86
87#define IEEE80211_IF_FMT_ATOMIC(name, field) \
88static ssize_t ieee80211_if_fmt_##name( \
89 const struct ieee80211_sub_if_data *sdata, \
90 char *buf, int buflen) \
91{ \
92 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
93}
94
95#define IEEE80211_IF_FMT_MAC(name, field) \
96static ssize_t ieee80211_if_fmt_##name( \
97 const struct ieee80211_sub_if_data *sdata, char *buf, \
98 int buflen) \
99{ \
Johannes Berg0c68ae262008-10-27 15:56:10 -0700100 return scnprintf(buf, buflen, "%pM\n", sdata->field); \
Jiri Bence9f207f2007-05-05 11:46:38 -0700101}
102
Johannes Berg0f782312009-12-01 13:37:02 +0100103#define __IEEE80211_IF_FILE(name, _write) \
Jiri Bence9f207f2007-05-05 11:46:38 -0700104static ssize_t ieee80211_if_read_##name(struct file *file, \
105 char __user *userbuf, \
106 size_t count, loff_t *ppos) \
107{ \
108 return ieee80211_if_read(file->private_data, \
109 userbuf, count, ppos, \
110 ieee80211_if_fmt_##name); \
111} \
112static const struct file_operations name##_ops = { \
113 .read = ieee80211_if_read_##name, \
Johannes Berg0f782312009-12-01 13:37:02 +0100114 .write = (_write), \
Jiri Bence9f207f2007-05-05 11:46:38 -0700115 .open = mac80211_open_file_generic, \
116}
117
Johannes Berg0f782312009-12-01 13:37:02 +0100118#define __IEEE80211_IF_FILE_W(name) \
119static ssize_t ieee80211_if_write_##name(struct file *file, \
120 const char __user *userbuf, \
121 size_t count, loff_t *ppos) \
122{ \
123 return ieee80211_if_write(file->private_data, userbuf, count, \
124 ppos, ieee80211_if_parse_##name); \
125} \
126__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
127
128
Jiri Bence9f207f2007-05-05 11:46:38 -0700129#define IEEE80211_IF_FILE(name, field, format) \
130 IEEE80211_IF_FMT_##format(name, field) \
Johannes Berg0f782312009-12-01 13:37:02 +0100131 __IEEE80211_IF_FILE(name, NULL)
Jiri Bence9f207f2007-05-05 11:46:38 -0700132
133/* common attributes */
Jiri Bence9f207f2007-05-05 11:46:38 -0700134IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200135IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
136 HEX);
137IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
138 HEX);
Jiri Bence9f207f2007-05-05 11:46:38 -0700139
Johannes Berg46900292009-02-15 12:44:28 +0100140/* STA attributes */
Johannes Berg46900292009-02-15 12:44:28 +0100141IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
Johannes Berg46900292009-02-15 12:44:28 +0100142IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
Jiri Bence9f207f2007-05-05 11:46:38 -0700143
Johannes Berg0f782312009-12-01 13:37:02 +0100144static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
145 enum ieee80211_smps_mode smps_mode)
146{
147 struct ieee80211_local *local = sdata->local;
148 int err;
149
150 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
151 smps_mode == IEEE80211_SMPS_STATIC)
152 return -EINVAL;
153
154 /* auto should be dynamic if in PS mode */
155 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
156 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
157 smps_mode == IEEE80211_SMPS_AUTOMATIC))
158 return -EINVAL;
159
160 /* supported only on managed interfaces for now */
161 if (sdata->vif.type != NL80211_IFTYPE_STATION)
162 return -EOPNOTSUPP;
163
164 mutex_lock(&local->iflist_mtx);
165 err = __ieee80211_request_smps(sdata, smps_mode);
166 mutex_unlock(&local->iflist_mtx);
167
168 return err;
169}
170
171static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
172 [IEEE80211_SMPS_AUTOMATIC] = "auto",
173 [IEEE80211_SMPS_OFF] = "off",
174 [IEEE80211_SMPS_STATIC] = "static",
175 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
176};
177
178static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
179 char *buf, int buflen)
180{
181 if (sdata->vif.type != NL80211_IFTYPE_STATION)
182 return -EOPNOTSUPP;
183
184 return snprintf(buf, buflen, "request: %s\nused: %s\n",
185 smps_modes[sdata->u.mgd.req_smps],
186 smps_modes[sdata->u.mgd.ap_smps]);
187}
188
189static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
190 const char *buf, int buflen)
191{
192 enum ieee80211_smps_mode mode;
193
194 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
195 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
196 int err = ieee80211_set_smps(sdata, mode);
197 if (!err)
198 return buflen;
199 return err;
200 }
201 }
202
203 return -EINVAL;
204}
205
206__IEEE80211_IF_FILE_W(smps);
207
Jiri Bence9f207f2007-05-05 11:46:38 -0700208/* AP attributes */
209IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
Jiri Bence9f207f2007-05-05 11:46:38 -0700210IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
Jiri Bence9f207f2007-05-05 11:46:38 -0700211
212static ssize_t ieee80211_if_fmt_num_buffered_multicast(
213 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
214{
215 return scnprintf(buf, buflen, "%u\n",
216 skb_queue_len(&sdata->u.ap.ps_bc_buf));
217}
Johannes Berg0f782312009-12-01 13:37:02 +0100218__IEEE80211_IF_FILE(num_buffered_multicast, NULL);
Jiri Bence9f207f2007-05-05 11:46:38 -0700219
Jiri Bence9f207f2007-05-05 11:46:38 -0700220/* WDS attributes */
221IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
222
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100223#ifdef CONFIG_MAC80211_MESH
224/* Mesh stats attributes */
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700225IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
226IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
Johannes Berg472dbc42008-09-11 00:01:49 +0200227IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
228IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100229IEEE80211_IF_FILE(dropped_frames_no_route,
Johannes Berg472dbc42008-09-11 00:01:49 +0200230 u.mesh.mshstats.dropped_frames_no_route, DEC);
231IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100232
233/* Mesh parameters */
Johannes Berg36ff3822008-10-07 12:04:31 +0200234IEEE80211_IF_FILE(dot11MeshMaxRetries,
235 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
236IEEE80211_IF_FILE(dot11MeshRetryTimeout,
237 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
238IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
239 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
240IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
241 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
242IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
243IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
244IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
245 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
246IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
247 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
248IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
249 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
250IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
251 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
252IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
253 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
254IEEE80211_IF_FILE(path_refresh_time,
255 u.mesh.mshcfg.path_refresh_time, DEC);
256IEEE80211_IF_FILE(min_discovery_timeout,
257 u.mesh.mshcfg.min_discovery_timeout, DEC);
Rui Paulo63c57232009-11-09 23:46:57 +0000258IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
259 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100260#endif
261
262
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100263#define DEBUGFS_ADD(name) \
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100264 debugfs_create_file(#name, 0400, sdata->debugfs.dir, \
265 sdata, &name##_ops);
Jiri Bence9f207f2007-05-05 11:46:38 -0700266
Johannes Berg0f782312009-12-01 13:37:02 +0100267#define DEBUGFS_ADD_MODE(name, mode) \
268 debugfs_create_file(#name, mode, sdata->debugfs.dir, \
269 sdata, &name##_ops);
270
Jiri Bence9f207f2007-05-05 11:46:38 -0700271static void add_sta_files(struct ieee80211_sub_if_data *sdata)
272{
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100273 DEBUGFS_ADD(drop_unencrypted);
274 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
275 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
Johannes Berg3e122be2008-07-09 14:40:34 +0200276
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100277 DEBUGFS_ADD(bssid);
278 DEBUGFS_ADD(aid);
Johannes Berg0f782312009-12-01 13:37:02 +0100279 DEBUGFS_ADD_MODE(smps, 0600);
Jiri Bence9f207f2007-05-05 11:46:38 -0700280}
281
282static void add_ap_files(struct ieee80211_sub_if_data *sdata)
283{
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100284 DEBUGFS_ADD(drop_unencrypted);
285 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
286 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
Johannes Berg3e122be2008-07-09 14:40:34 +0200287
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100288 DEBUGFS_ADD(num_sta_ps);
289 DEBUGFS_ADD(dtim_count);
290 DEBUGFS_ADD(num_buffered_multicast);
Jiri Bence9f207f2007-05-05 11:46:38 -0700291}
292
293static void add_wds_files(struct ieee80211_sub_if_data *sdata)
294{
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100295 DEBUGFS_ADD(drop_unencrypted);
296 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
297 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
Johannes Berg3e122be2008-07-09 14:40:34 +0200298
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100299 DEBUGFS_ADD(peer);
Jiri Bence9f207f2007-05-05 11:46:38 -0700300}
301
302static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
303{
Johannes Berg2d46d7c2010-01-10 17:12:41 +0100304 DEBUGFS_ADD(drop_unencrypted);
305 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
306 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
Jiri Bence9f207f2007-05-05 11:46:38 -0700307}
308
309static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
310{
Jiri Bence9f207f2007-05-05 11:46:38 -0700311}
312
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100313#ifdef CONFIG_MAC80211_MESH
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100314
315static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
316{
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100317 struct dentry *dir = debugfs_create_dir("mesh_stats",
318 sdata->debugfs.dir);
319
320#define MESHSTATS_ADD(name)\
321 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
322
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700323 MESHSTATS_ADD(fwded_mcast);
324 MESHSTATS_ADD(fwded_unicast);
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100325 MESHSTATS_ADD(fwded_frames);
326 MESHSTATS_ADD(dropped_frames_ttl);
327 MESHSTATS_ADD(dropped_frames_no_route);
328 MESHSTATS_ADD(estab_plinks);
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100329#undef MESHSTATS_ADD
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100330}
331
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100332static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
333{
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100334 struct dentry *dir = debugfs_create_dir("mesh_config",
335 sdata->debugfs.dir);
336
337#define MESHPARAMS_ADD(name) \
338 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
339
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100340 MESHPARAMS_ADD(dot11MeshMaxRetries);
341 MESHPARAMS_ADD(dot11MeshRetryTimeout);
342 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
343 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
344 MESHPARAMS_ADD(dot11MeshTTL);
345 MESHPARAMS_ADD(auto_open_plinks);
346 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
347 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
348 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
349 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
350 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
351 MESHPARAMS_ADD(path_refresh_time);
352 MESHPARAMS_ADD(min_discovery_timeout);
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100353
354#undef MESHPARAMS_ADD
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100355}
356#endif
357
Jiri Bence9f207f2007-05-05 11:46:38 -0700358static void add_files(struct ieee80211_sub_if_data *sdata)
359{
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100360 if (!sdata->debugfs.dir)
Jiri Bence9f207f2007-05-05 11:46:38 -0700361 return;
362
Johannes Berg51fb61e2007-12-19 01:31:27 +0100363 switch (sdata->vif.type) {
Johannes Berg05c914f2008-09-11 00:01:58 +0200364 case NL80211_IFTYPE_MESH_POINT:
Luis Carlos Cobo9f42f602008-02-23 15:17:16 +0100365#ifdef CONFIG_MAC80211_MESH
366 add_mesh_stats(sdata);
367 add_mesh_config(sdata);
368#endif
Johannes Berg472dbc42008-09-11 00:01:49 +0200369 break;
Johannes Berg05c914f2008-09-11 00:01:58 +0200370 case NL80211_IFTYPE_STATION:
Jiri Bence9f207f2007-05-05 11:46:38 -0700371 add_sta_files(sdata);
372 break;
Johannes Berg46900292009-02-15 12:44:28 +0100373 case NL80211_IFTYPE_ADHOC:
374 /* XXX */
375 break;
Johannes Berg05c914f2008-09-11 00:01:58 +0200376 case NL80211_IFTYPE_AP:
Jiri Bence9f207f2007-05-05 11:46:38 -0700377 add_ap_files(sdata);
378 break;
Johannes Berg05c914f2008-09-11 00:01:58 +0200379 case NL80211_IFTYPE_WDS:
Jiri Bence9f207f2007-05-05 11:46:38 -0700380 add_wds_files(sdata);
381 break;
Johannes Berg05c914f2008-09-11 00:01:58 +0200382 case NL80211_IFTYPE_MONITOR:
Jiri Bence9f207f2007-05-05 11:46:38 -0700383 add_monitor_files(sdata);
384 break;
Johannes Berg05c914f2008-09-11 00:01:58 +0200385 case NL80211_IFTYPE_AP_VLAN:
Jiri Bence9f207f2007-05-05 11:46:38 -0700386 add_vlan_files(sdata);
387 break;
388 default:
389 break;
390 }
391}
392
Jiri Bence9f207f2007-05-05 11:46:38 -0700393void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
394{
395 char buf[10+IFNAMSIZ];
396
Johannes Berg47846c92009-11-25 17:46:19 +0100397 sprintf(buf, "netdev:%s", sdata->name);
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100398 sdata->debugfs.dir = debugfs_create_dir(buf,
Jiri Bence9f207f2007-05-05 11:46:38 -0700399 sdata->local->hw.wiphy->debugfsdir);
Johannes Berg75636522008-07-09 14:40:35 +0200400 add_files(sdata);
Jiri Bence9f207f2007-05-05 11:46:38 -0700401}
402
403void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
404{
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100405 if (!sdata->debugfs.dir)
406 return;
407
408 debugfs_remove_recursive(sdata->debugfs.dir);
409 sdata->debugfs.dir = NULL;
Jiri Bence9f207f2007-05-05 11:46:38 -0700410}
411
Johannes Berg47846c92009-11-25 17:46:19 +0100412void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
Jiri Bence9f207f2007-05-05 11:46:38 -0700413{
Johannes Berg7c8081e2007-06-21 18:30:19 +0200414 struct dentry *dir;
Johannes Berg47846c92009-11-25 17:46:19 +0100415 char buf[10 + IFNAMSIZ];
Johannes Berg3e122be2008-07-09 14:40:34 +0200416
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100417 dir = sdata->debugfs.dir;
Johannes Bergc74e90a2008-10-08 10:18:36 +0200418
419 if (!dir)
Johannes Berg47846c92009-11-25 17:46:19 +0100420 return;
Johannes Bergc74e90a2008-10-08 10:18:36 +0200421
Johannes Berg47846c92009-11-25 17:46:19 +0100422 sprintf(buf, "netdev:%s", sdata->name);
Johannes Berg7c8081e2007-06-21 18:30:19 +0200423 if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
424 printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
425 "dir to %s\n", buf);
Jiri Bence9f207f2007-05-05 11:46:38 -0700426}