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[karo-tx-linux.git] / net / mac80211 / debugfs_netdev.c
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/if_ether.h>
14 #include <linux/interrupt.h>
15 #include <linux/netdevice.h>
16 #include <linux/rtnetlink.h>
17 #include <linux/slab.h>
18 #include <linux/notifier.h>
19 #include <net/mac80211.h>
20 #include <net/cfg80211.h>
21 #include "ieee80211_i.h"
22 #include "rate.h"
23 #include "debugfs.h"
24 #include "debugfs_netdev.h"
25 #include "driver-ops.h"
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 {
33         char buf[70];
34         ssize_t ret = -EINVAL;
35
36         read_lock(&dev_base_lock);
37         if (sdata->dev->reg_state == NETREG_REGISTERED)
38                 ret = (*format)(sdata, buf, sizeof(buf));
39         read_unlock(&dev_base_lock);
40
41         if (ret >= 0)
42                 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
43
44         return ret;
45 }
46
47 static ssize_t ieee80211_if_write(
48         struct ieee80211_sub_if_data *sdata,
49         const char __user *userbuf,
50         size_t count, loff_t *ppos,
51         ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
52 {
53         char buf[64];
54         ssize_t ret;
55
56         if (count >= sizeof(buf))
57                 return -E2BIG;
58
59         if (copy_from_user(buf, userbuf, count))
60                 return -EFAULT;
61         buf[count] = '\0';
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
69         return ret;
70 }
71
72 #define IEEE80211_IF_FMT(name, field, format_string)                    \
73 static ssize_t ieee80211_if_fmt_##name(                                 \
74         const struct ieee80211_sub_if_data *sdata, char *buf,           \
75         int buflen)                                                     \
76 {                                                                       \
77         return scnprintf(buf, buflen, format_string, sdata->field);     \
78 }
79 #define IEEE80211_IF_FMT_DEC(name, field)                               \
80                 IEEE80211_IF_FMT(name, field, "%d\n")
81 #define IEEE80211_IF_FMT_HEX(name, field)                               \
82                 IEEE80211_IF_FMT(name, field, "%#x\n")
83 #define IEEE80211_IF_FMT_LHEX(name, field)                              \
84                 IEEE80211_IF_FMT(name, field, "%#lx\n")
85 #define IEEE80211_IF_FMT_SIZE(name, field)                              \
86                 IEEE80211_IF_FMT(name, field, "%zd\n")
87
88 #define IEEE80211_IF_FMT_HEXARRAY(name, field)                          \
89 static ssize_t ieee80211_if_fmt_##name(                                 \
90         const struct ieee80211_sub_if_data *sdata,                      \
91         char *buf, int buflen)                                          \
92 {                                                                       \
93         char *p = buf;                                                  \
94         int i;                                                          \
95         for (i = 0; i < sizeof(sdata->field); i++) {                    \
96                 p += scnprintf(p, buflen + buf - p, "%.2x ",            \
97                                  sdata->field[i]);                      \
98         }                                                               \
99         p += scnprintf(p, buflen + buf - p, "\n");                      \
100         return p - buf;                                                 \
101 }
102
103 #define IEEE80211_IF_FMT_ATOMIC(name, field)                            \
104 static ssize_t ieee80211_if_fmt_##name(                                 \
105         const struct ieee80211_sub_if_data *sdata,                      \
106         char *buf, int buflen)                                          \
107 {                                                                       \
108         return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
109 }
110
111 #define IEEE80211_IF_FMT_MAC(name, field)                               \
112 static ssize_t ieee80211_if_fmt_##name(                                 \
113         const struct ieee80211_sub_if_data *sdata, char *buf,           \
114         int buflen)                                                     \
115 {                                                                       \
116         return scnprintf(buf, buflen, "%pM\n", sdata->field);           \
117 }
118
119 #define IEEE80211_IF_FMT_DEC_DIV_16(name, field)                        \
120 static ssize_t ieee80211_if_fmt_##name(                                 \
121         const struct ieee80211_sub_if_data *sdata,                      \
122         char *buf, int buflen)                                          \
123 {                                                                       \
124         return scnprintf(buf, buflen, "%d\n", sdata->field / 16);       \
125 }
126
127 #define __IEEE80211_IF_FILE(name, _write)                               \
128 static ssize_t ieee80211_if_read_##name(struct file *file,              \
129                                         char __user *userbuf,           \
130                                         size_t count, loff_t *ppos)     \
131 {                                                                       \
132         return ieee80211_if_read(file->private_data,                    \
133                                  userbuf, count, ppos,                  \
134                                  ieee80211_if_fmt_##name);              \
135 }                                                                       \
136 static const struct file_operations name##_ops = {                      \
137         .read = ieee80211_if_read_##name,                               \
138         .write = (_write),                                              \
139         .open = simple_open,                                            \
140         .llseek = generic_file_llseek,                                  \
141 }
142
143 #define __IEEE80211_IF_FILE_W(name)                                     \
144 static ssize_t ieee80211_if_write_##name(struct file *file,             \
145                                          const char __user *userbuf,    \
146                                          size_t count, loff_t *ppos)    \
147 {                                                                       \
148         return ieee80211_if_write(file->private_data, userbuf, count,   \
149                                   ppos, ieee80211_if_parse_##name);     \
150 }                                                                       \
151 __IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
152
153
154 #define IEEE80211_IF_FILE(name, field, format)                          \
155                 IEEE80211_IF_FMT_##format(name, field)                  \
156                 __IEEE80211_IF_FILE(name, NULL)
157
158 /* common attributes */
159 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
160 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
161                   HEX);
162 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
163                   HEX);
164 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
165                   rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY);
166 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
167                   rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
168
169 IEEE80211_IF_FILE(flags, flags, HEX);
170 IEEE80211_IF_FILE(state, state, LHEX);
171 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
172 IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
173 IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
174
175 static ssize_t
176 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
177                            char *buf, int buflen)
178 {
179         int len;
180
181         len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
182                         sdata->vif.hw_queue[IEEE80211_AC_VO],
183                         sdata->vif.hw_queue[IEEE80211_AC_VI],
184                         sdata->vif.hw_queue[IEEE80211_AC_BE],
185                         sdata->vif.hw_queue[IEEE80211_AC_BK]);
186
187         if (sdata->vif.type == NL80211_IFTYPE_AP)
188                 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
189                                  sdata->vif.cab_queue);
190
191         return len;
192 }
193 __IEEE80211_IF_FILE(hw_queues, NULL);
194
195 /* STA attributes */
196 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
197 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
198 IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
199 IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
200
201 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
202                               enum ieee80211_smps_mode smps_mode)
203 {
204         struct ieee80211_local *local = sdata->local;
205         int err;
206
207         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
208             smps_mode == IEEE80211_SMPS_STATIC)
209                 return -EINVAL;
210
211         /* auto should be dynamic if in PS mode */
212         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
213             (smps_mode == IEEE80211_SMPS_DYNAMIC ||
214              smps_mode == IEEE80211_SMPS_AUTOMATIC))
215                 return -EINVAL;
216
217         /* supported only on managed interfaces for now */
218         if (sdata->vif.type != NL80211_IFTYPE_STATION)
219                 return -EOPNOTSUPP;
220
221         mutex_lock(&sdata->u.mgd.mtx);
222         err = __ieee80211_request_smps(sdata, smps_mode);
223         mutex_unlock(&sdata->u.mgd.mtx);
224
225         return err;
226 }
227
228 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
229         [IEEE80211_SMPS_AUTOMATIC] = "auto",
230         [IEEE80211_SMPS_OFF] = "off",
231         [IEEE80211_SMPS_STATIC] = "static",
232         [IEEE80211_SMPS_DYNAMIC] = "dynamic",
233 };
234
235 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
236                                      char *buf, int buflen)
237 {
238         if (sdata->vif.type != NL80211_IFTYPE_STATION)
239                 return -EOPNOTSUPP;
240
241         return snprintf(buf, buflen, "request: %s\nused: %s\n",
242                         smps_modes[sdata->u.mgd.req_smps],
243                         smps_modes[sdata->smps_mode]);
244 }
245
246 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
247                                        const char *buf, int buflen)
248 {
249         enum ieee80211_smps_mode mode;
250
251         for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
252                 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
253                         int err = ieee80211_set_smps(sdata, mode);
254                         if (!err)
255                                 return buflen;
256                         return err;
257                 }
258         }
259
260         return -EINVAL;
261 }
262
263 __IEEE80211_IF_FILE_W(smps);
264
265 static ssize_t ieee80211_if_fmt_tkip_mic_test(
266         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
267 {
268         return -EOPNOTSUPP;
269 }
270
271 static ssize_t ieee80211_if_parse_tkip_mic_test(
272         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
273 {
274         struct ieee80211_local *local = sdata->local;
275         u8 addr[ETH_ALEN];
276         struct sk_buff *skb;
277         struct ieee80211_hdr *hdr;
278         __le16 fc;
279
280         if (!mac_pton(buf, addr))
281                 return -EINVAL;
282
283         if (!ieee80211_sdata_running(sdata))
284                 return -ENOTCONN;
285
286         skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
287         if (!skb)
288                 return -ENOMEM;
289         skb_reserve(skb, local->hw.extra_tx_headroom);
290
291         hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
292         memset(hdr, 0, 24);
293         fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
294
295         switch (sdata->vif.type) {
296         case NL80211_IFTYPE_AP:
297                 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
298                 /* DA BSSID SA */
299                 memcpy(hdr->addr1, addr, ETH_ALEN);
300                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
301                 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
302                 break;
303         case NL80211_IFTYPE_STATION:
304                 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
305                 /* BSSID SA DA */
306                 mutex_lock(&sdata->u.mgd.mtx);
307                 if (!sdata->u.mgd.associated) {
308                         mutex_unlock(&sdata->u.mgd.mtx);
309                         dev_kfree_skb(skb);
310                         return -ENOTCONN;
311                 }
312                 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
313                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
314                 memcpy(hdr->addr3, addr, ETH_ALEN);
315                 mutex_unlock(&sdata->u.mgd.mtx);
316                 break;
317         default:
318                 dev_kfree_skb(skb);
319                 return -EOPNOTSUPP;
320         }
321         hdr->frame_control = fc;
322
323         /*
324          * Add some length to the test frame to make it look bit more valid.
325          * The exact contents does not matter since the recipient is required
326          * to drop this because of the Michael MIC failure.
327          */
328         memset(skb_put(skb, 50), 0, 50);
329
330         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
331
332         ieee80211_tx_skb(sdata, skb);
333
334         return buflen;
335 }
336
337 __IEEE80211_IF_FILE_W(tkip_mic_test);
338
339 static ssize_t ieee80211_if_fmt_uapsd_queues(
340         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
341 {
342         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
343
344         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
345 }
346
347 static ssize_t ieee80211_if_parse_uapsd_queues(
348         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
349 {
350         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
351         u8 val;
352         int ret;
353
354         ret = kstrtou8(buf, 0, &val);
355         if (ret)
356                 return ret;
357
358         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
359                 return -ERANGE;
360
361         ifmgd->uapsd_queues = val;
362
363         return buflen;
364 }
365 __IEEE80211_IF_FILE_W(uapsd_queues);
366
367 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
368         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
369 {
370         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
371
372         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
373 }
374
375 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
376         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
377 {
378         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
379         unsigned long val;
380         int ret;
381
382         ret = kstrtoul(buf, 0, &val);
383         if (ret)
384                 return -EINVAL;
385
386         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
387                 return -ERANGE;
388
389         ifmgd->uapsd_max_sp_len = val;
390
391         return buflen;
392 }
393 __IEEE80211_IF_FILE_W(uapsd_max_sp_len);
394
395 /* AP attributes */
396 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
397 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
398 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
399
400 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
401         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
402 {
403         return scnprintf(buf, buflen, "%u\n",
404                          skb_queue_len(&sdata->u.ap.ps.bc_buf));
405 }
406 __IEEE80211_IF_FILE(num_buffered_multicast, NULL);
407
408 /* IBSS attributes */
409 static ssize_t ieee80211_if_fmt_tsf(
410         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
411 {
412         struct ieee80211_local *local = sdata->local;
413         u64 tsf;
414
415         tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
416
417         return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
418 }
419
420 static ssize_t ieee80211_if_parse_tsf(
421         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
422 {
423         struct ieee80211_local *local = sdata->local;
424         unsigned long long tsf;
425         int ret;
426         int tsf_is_delta = 0;
427
428         if (strncmp(buf, "reset", 5) == 0) {
429                 if (local->ops->reset_tsf) {
430                         drv_reset_tsf(local, sdata);
431                         wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
432                 }
433         } else {
434                 if (buflen > 10 && buf[1] == '=') {
435                         if (buf[0] == '+')
436                                 tsf_is_delta = 1;
437                         else if (buf[0] == '-')
438                                 tsf_is_delta = -1;
439                         else
440                                 return -EINVAL;
441                         buf += 2;
442                 }
443                 ret = kstrtoull(buf, 10, &tsf);
444                 if (ret < 0)
445                         return ret;
446                 if (tsf_is_delta)
447                         tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
448                 if (local->ops->set_tsf) {
449                         drv_set_tsf(local, sdata, tsf);
450                         wiphy_info(local->hw.wiphy,
451                                    "debugfs set TSF to %#018llx\n", tsf);
452                 }
453         }
454
455         return buflen;
456 }
457 __IEEE80211_IF_FILE_W(tsf);
458
459
460 /* WDS attributes */
461 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
462
463 #ifdef CONFIG_MAC80211_MESH
464 /* Mesh stats attributes */
465 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
466 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
467 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
468 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
469 IEEE80211_IF_FILE(dropped_frames_congestion,
470                   u.mesh.mshstats.dropped_frames_congestion, DEC);
471 IEEE80211_IF_FILE(dropped_frames_no_route,
472                   u.mesh.mshstats.dropped_frames_no_route, DEC);
473 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
474
475 /* Mesh parameters */
476 IEEE80211_IF_FILE(dot11MeshMaxRetries,
477                   u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
478 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
479                   u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
480 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
481                   u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
482 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
483                   u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
484 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
485 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
486 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
487 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
488                   u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
489 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
490                   u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
491 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
492                   u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
493 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
494                   u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
495 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
496                   u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
497 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
498                   u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
499 IEEE80211_IF_FILE(path_refresh_time,
500                   u.mesh.mshcfg.path_refresh_time, DEC);
501 IEEE80211_IF_FILE(min_discovery_timeout,
502                   u.mesh.mshcfg.min_discovery_timeout, DEC);
503 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
504                   u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
505 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
506                   u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
507 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
508                   u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
509 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
510 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
511 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
512 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
513                   u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
514 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
515                   u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
516 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
517                   u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
518 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
519 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
520                   u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
521 #endif
522
523 #define DEBUGFS_ADD_MODE(name, mode) \
524         debugfs_create_file(#name, mode, sdata->debugfs.dir, \
525                             sdata, &name##_ops);
526
527 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
528
529 static void add_common_files(struct ieee80211_sub_if_data *sdata)
530 {
531         DEBUGFS_ADD(drop_unencrypted);
532         DEBUGFS_ADD(rc_rateidx_mask_2ghz);
533         DEBUGFS_ADD(rc_rateidx_mask_5ghz);
534         DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
535         DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
536         DEBUGFS_ADD(hw_queues);
537 }
538
539 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
540 {
541         DEBUGFS_ADD(bssid);
542         DEBUGFS_ADD(aid);
543         DEBUGFS_ADD(last_beacon);
544         DEBUGFS_ADD(ave_beacon);
545         DEBUGFS_ADD_MODE(smps, 0600);
546         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
547         DEBUGFS_ADD_MODE(uapsd_queues, 0600);
548         DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
549 }
550
551 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
552 {
553         DEBUGFS_ADD(num_mcast_sta);
554         DEBUGFS_ADD(num_sta_ps);
555         DEBUGFS_ADD(dtim_count);
556         DEBUGFS_ADD(num_buffered_multicast);
557         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
558 }
559
560 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
561 {
562         DEBUGFS_ADD_MODE(tsf, 0600);
563 }
564
565 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
566 {
567         DEBUGFS_ADD(peer);
568 }
569
570 #ifdef CONFIG_MAC80211_MESH
571
572 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
573 {
574         DEBUGFS_ADD_MODE(tsf, 0600);
575 }
576
577 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
578 {
579         struct dentry *dir = debugfs_create_dir("mesh_stats",
580                                                 sdata->debugfs.dir);
581 #define MESHSTATS_ADD(name)\
582         debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
583
584         MESHSTATS_ADD(fwded_mcast);
585         MESHSTATS_ADD(fwded_unicast);
586         MESHSTATS_ADD(fwded_frames);
587         MESHSTATS_ADD(dropped_frames_ttl);
588         MESHSTATS_ADD(dropped_frames_no_route);
589         MESHSTATS_ADD(dropped_frames_congestion);
590         MESHSTATS_ADD(estab_plinks);
591 #undef MESHSTATS_ADD
592 }
593
594 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
595 {
596         struct dentry *dir = debugfs_create_dir("mesh_config",
597                                                 sdata->debugfs.dir);
598
599 #define MESHPARAMS_ADD(name) \
600         debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
601
602         MESHPARAMS_ADD(dot11MeshMaxRetries);
603         MESHPARAMS_ADD(dot11MeshRetryTimeout);
604         MESHPARAMS_ADD(dot11MeshConfirmTimeout);
605         MESHPARAMS_ADD(dot11MeshHoldingTimeout);
606         MESHPARAMS_ADD(dot11MeshTTL);
607         MESHPARAMS_ADD(element_ttl);
608         MESHPARAMS_ADD(auto_open_plinks);
609         MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
610         MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
611         MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
612         MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
613         MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
614         MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
615         MESHPARAMS_ADD(path_refresh_time);
616         MESHPARAMS_ADD(min_discovery_timeout);
617         MESHPARAMS_ADD(dot11MeshHWMPRootMode);
618         MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
619         MESHPARAMS_ADD(dot11MeshForwarding);
620         MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
621         MESHPARAMS_ADD(rssi_threshold);
622         MESHPARAMS_ADD(ht_opmode);
623         MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
624         MESHPARAMS_ADD(dot11MeshHWMProotInterval);
625         MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
626         MESHPARAMS_ADD(power_mode);
627         MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
628 #undef MESHPARAMS_ADD
629 }
630 #endif
631
632 static void add_files(struct ieee80211_sub_if_data *sdata)
633 {
634         if (!sdata->debugfs.dir)
635                 return;
636
637         DEBUGFS_ADD(flags);
638         DEBUGFS_ADD(state);
639         DEBUGFS_ADD(txpower);
640         DEBUGFS_ADD(user_power_level);
641         DEBUGFS_ADD(ap_power_level);
642
643         if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
644                 add_common_files(sdata);
645
646         switch (sdata->vif.type) {
647         case NL80211_IFTYPE_MESH_POINT:
648 #ifdef CONFIG_MAC80211_MESH
649                 add_mesh_files(sdata);
650                 add_mesh_stats(sdata);
651                 add_mesh_config(sdata);
652 #endif
653                 break;
654         case NL80211_IFTYPE_STATION:
655                 add_sta_files(sdata);
656                 break;
657         case NL80211_IFTYPE_ADHOC:
658                 add_ibss_files(sdata);
659                 break;
660         case NL80211_IFTYPE_AP:
661                 add_ap_files(sdata);
662                 break;
663         case NL80211_IFTYPE_WDS:
664                 add_wds_files(sdata);
665                 break;
666         default:
667                 break;
668         }
669 }
670
671 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
672 {
673         char buf[10+IFNAMSIZ];
674
675         sprintf(buf, "netdev:%s", sdata->name);
676         sdata->debugfs.dir = debugfs_create_dir(buf,
677                 sdata->local->hw.wiphy->debugfsdir);
678         if (sdata->debugfs.dir)
679                 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
680                         sdata->debugfs.dir);
681         add_files(sdata);
682 }
683
684 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
685 {
686         if (!sdata->debugfs.dir)
687                 return;
688
689         debugfs_remove_recursive(sdata->debugfs.dir);
690         sdata->debugfs.dir = NULL;
691 }
692
693 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
694 {
695         struct dentry *dir;
696         char buf[10 + IFNAMSIZ];
697
698         dir = sdata->debugfs.dir;
699
700         if (!dir)
701                 return;
702
703         sprintf(buf, "netdev:%s", sdata->name);
704         if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
705                 sdata_err(sdata,
706                           "debugfs: failed to rename debugfs dir to %s\n",
707                           buf);
708 }