GNU Linux-libre 4.14.266-gnu1
[releases.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[200];
34         ssize_t ret = -EINVAL;
35
36         read_lock(&dev_base_lock);
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
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 {
52         char buf[64];
53         ssize_t ret;
54
55         if (count >= sizeof(buf))
56                 return -E2BIG;
57
58         if (copy_from_user(buf, userbuf, count))
59                 return -EFAULT;
60         buf[count] = '\0';
61
62         ret = -ENODEV;
63         rtnl_lock();
64         ret = (*write)(sdata, buf, count);
65         rtnl_unlock();
66
67         return ret;
68 }
69
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")
81 #define IEEE80211_IF_FMT_LHEX(name, field)                              \
82                 IEEE80211_IF_FMT(name, field, "%#lx\n")
83 #define IEEE80211_IF_FMT_SIZE(name, field)                              \
84                 IEEE80211_IF_FMT(name, field, "%zd\n")
85
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
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 {                                                                       \
114         return scnprintf(buf, buflen, "%pM\n", sdata->field);           \
115 }
116
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
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)                                   \
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);              \
142 }
143
144 #define _IEEE80211_IF_FILE_W_FN(name)                                   \
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);     \
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)
160
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)
166
167 #define IEEE80211_IF_FILE(name, field, format)                          \
168         IEEE80211_IF_FMT_##format(name, field)                          \
169         IEEE80211_IF_FILE_R(name)
170
171 /* common attributes */
172 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
173                   HEX);
174 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
175                   HEX);
176 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
177                   rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
178 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
179                   rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
180
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;
186         const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
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;
202         const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
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
213 IEEE80211_IF_FILE(flags, flags, HEX);
214 IEEE80211_IF_FILE(state, state, LHEX);
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);
218
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 }
237 IEEE80211_IF_FILE_R(hw_queues);
238
239 /* STA attributes */
240 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
241 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
242 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
243
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
250         if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
251             smps_mode == IEEE80211_SMPS_STATIC)
252                 return -EINVAL;
253
254         /* auto should be dynamic if in PS mode */
255         if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
256             (smps_mode == IEEE80211_SMPS_DYNAMIC ||
257              smps_mode == IEEE80211_SMPS_AUTOMATIC))
258                 return -EINVAL;
259
260         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
261             sdata->vif.type != NL80211_IFTYPE_AP)
262                 return -EOPNOTSUPP;
263
264         sdata_lock(sdata);
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);
269         sdata_unlock(sdata);
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 {
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;
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 }
311 IEEE80211_IF_FILE_RW(smps);
312
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
322         if (!mac_pton(buf, addr))
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 = skb_put_zero(skb, 24);
334         fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
335
336         switch (sdata->vif.type) {
337         case NL80211_IFTYPE_AP:
338                 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
339                 /* DA BSSID SA */
340                 memcpy(hdr->addr1, addr, ETH_ALEN);
341                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
342                 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
343                 break;
344         case NL80211_IFTYPE_STATION:
345                 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
346                 /* BSSID SA DA */
347                 sdata_lock(sdata);
348                 if (!sdata->u.mgd.associated) {
349                         sdata_unlock(sdata);
350                         dev_kfree_skb(skb);
351                         return -ENOTCONN;
352                 }
353                 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
354                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
355                 memcpy(hdr->addr3, addr, ETH_ALEN);
356                 sdata_unlock(sdata);
357                 break;
358         default:
359                 dev_kfree_skb(skb);
360                 return -EOPNOTSUPP;
361         }
362         hdr->frame_control = fc;
363
364         /*
365          * Add some length to the test frame to make it look bit more valid.
366          * The exact contents does not matter since the recipient is required
367          * to drop this because of the Michael MIC failure.
368          */
369         skb_put_zero(skb, 50);
370
371         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
372
373         ieee80211_tx_skb(sdata, skb);
374
375         return buflen;
376 }
377 IEEE80211_IF_FILE_W(tkip_mic_test);
378
379 static ssize_t ieee80211_if_parse_beacon_loss(
380         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
381 {
382         if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
383                 return -ENOTCONN;
384
385         ieee80211_beacon_loss(&sdata->vif);
386
387         return buflen;
388 }
389 IEEE80211_IF_FILE_W(beacon_loss);
390
391 static ssize_t ieee80211_if_fmt_uapsd_queues(
392         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
393 {
394         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
395
396         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
397 }
398
399 static ssize_t ieee80211_if_parse_uapsd_queues(
400         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
401 {
402         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
403         u8 val;
404         int ret;
405
406         ret = kstrtou8(buf, 0, &val);
407         if (ret)
408                 return ret;
409
410         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
411                 return -ERANGE;
412
413         ifmgd->uapsd_queues = val;
414
415         return buflen;
416 }
417 IEEE80211_IF_FILE_RW(uapsd_queues);
418
419 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
420         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
421 {
422         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
423
424         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
425 }
426
427 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
428         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
429 {
430         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
431         unsigned long val;
432         int ret;
433
434         ret = kstrtoul(buf, 0, &val);
435         if (ret)
436                 return -EINVAL;
437
438         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
439                 return -ERANGE;
440
441         ifmgd->uapsd_max_sp_len = val;
442
443         return buflen;
444 }
445 IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
446
447 static ssize_t ieee80211_if_fmt_tdls_wider_bw(
448         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
449 {
450         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
451         bool tdls_wider_bw;
452
453         tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
454                         !ifmgd->tdls_wider_bw_prohibited;
455
456         return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
457 }
458
459 static ssize_t ieee80211_if_parse_tdls_wider_bw(
460         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
461 {
462         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
463         u8 val;
464         int ret;
465
466         ret = kstrtou8(buf, 0, &val);
467         if (ret)
468                 return ret;
469
470         ifmgd->tdls_wider_bw_prohibited = !val;
471         return buflen;
472 }
473 IEEE80211_IF_FILE_RW(tdls_wider_bw);
474
475 /* AP attributes */
476 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
477 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
478 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
479 IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
480
481 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
482         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
483 {
484         return scnprintf(buf, buflen, "%u\n",
485                          skb_queue_len(&sdata->u.ap.ps.bc_buf));
486 }
487 IEEE80211_IF_FILE_R(num_buffered_multicast);
488
489 static ssize_t ieee80211_if_fmt_aqm(
490         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
491 {
492         struct ieee80211_local *local = sdata->local;
493         struct txq_info *txqi;
494         int len;
495
496         if (!sdata->vif.txq)
497                 return 0;
498
499         txqi = to_txq_info(sdata->vif.txq);
500
501         spin_lock_bh(&local->fq.lock);
502         rcu_read_lock();
503
504         len = scnprintf(buf,
505                         buflen,
506                         "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
507                         "%u %u %u %u %u %u %u %u %u %u\n",
508                         txqi->txq.ac,
509                         txqi->tin.backlog_bytes,
510                         txqi->tin.backlog_packets,
511                         txqi->tin.flows,
512                         txqi->cstats.drop_count,
513                         txqi->cstats.ecn_mark,
514                         txqi->tin.overlimit,
515                         txqi->tin.collisions,
516                         txqi->tin.tx_bytes,
517                         txqi->tin.tx_packets);
518
519         rcu_read_unlock();
520         spin_unlock_bh(&local->fq.lock);
521
522         return len;
523 }
524 IEEE80211_IF_FILE_R(aqm);
525
526 IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
527
528 /* IBSS attributes */
529 static ssize_t ieee80211_if_fmt_tsf(
530         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
531 {
532         struct ieee80211_local *local = sdata->local;
533         u64 tsf;
534
535         tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
536
537         return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
538 }
539
540 static ssize_t ieee80211_if_parse_tsf(
541         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
542 {
543         struct ieee80211_local *local = sdata->local;
544         unsigned long long tsf;
545         int ret;
546         int tsf_is_delta = 0;
547
548         if (strncmp(buf, "reset", 5) == 0) {
549                 if (local->ops->reset_tsf) {
550                         drv_reset_tsf(local, sdata);
551                         wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
552                 }
553         } else {
554                 if (buflen > 10 && buf[1] == '=') {
555                         if (buf[0] == '+')
556                                 tsf_is_delta = 1;
557                         else if (buf[0] == '-')
558                                 tsf_is_delta = -1;
559                         else
560                                 return -EINVAL;
561                         buf += 2;
562                 }
563                 ret = kstrtoull(buf, 10, &tsf);
564                 if (ret < 0)
565                         return ret;
566                 if (tsf_is_delta && local->ops->offset_tsf) {
567                         drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
568                         wiphy_info(local->hw.wiphy,
569                                    "debugfs offset TSF by %018lld\n",
570                                    tsf_is_delta * tsf);
571                 } else if (local->ops->set_tsf) {
572                         if (tsf_is_delta)
573                                 tsf = drv_get_tsf(local, sdata) +
574                                       tsf_is_delta * tsf;
575                         drv_set_tsf(local, sdata, tsf);
576                         wiphy_info(local->hw.wiphy,
577                                    "debugfs set TSF to %#018llx\n", tsf);
578                 }
579         }
580
581         ieee80211_recalc_dtim(local, sdata);
582         return buflen;
583 }
584 IEEE80211_IF_FILE_RW(tsf);
585
586
587 /* WDS attributes */
588 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
589
590 #ifdef CONFIG_MAC80211_MESH
591 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
592
593 /* Mesh stats attributes */
594 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
595 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
596 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
597 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
598 IEEE80211_IF_FILE(dropped_frames_congestion,
599                   u.mesh.mshstats.dropped_frames_congestion, DEC);
600 IEEE80211_IF_FILE(dropped_frames_no_route,
601                   u.mesh.mshstats.dropped_frames_no_route, DEC);
602
603 /* Mesh parameters */
604 IEEE80211_IF_FILE(dot11MeshMaxRetries,
605                   u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
606 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
607                   u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
608 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
609                   u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
610 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
611                   u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
612 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
613 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
614 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
615 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
616                   u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
617 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
618                   u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
619 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
620                   u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
621 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
622                   u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
623 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
624                   u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
625 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
626                   u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
627 IEEE80211_IF_FILE(path_refresh_time,
628                   u.mesh.mshcfg.path_refresh_time, DEC);
629 IEEE80211_IF_FILE(min_discovery_timeout,
630                   u.mesh.mshcfg.min_discovery_timeout, DEC);
631 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
632                   u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
633 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
634                   u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
635 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
636                   u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
637 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
638 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
639 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
640 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
641                   u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
642 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
643                   u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
644 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
645                   u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
646 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
647 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
648                   u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
649 #endif
650
651 #define DEBUGFS_ADD_MODE(name, mode) \
652         debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
653                             sdata, &name##_ops);
654
655 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
656
657 static void add_common_files(struct ieee80211_sub_if_data *sdata)
658 {
659         DEBUGFS_ADD(rc_rateidx_mask_2ghz);
660         DEBUGFS_ADD(rc_rateidx_mask_5ghz);
661         DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
662         DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
663         DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
664         DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
665         DEBUGFS_ADD(hw_queues);
666
667         if (sdata->local->ops->wake_tx_queue &&
668             sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
669             sdata->vif.type != NL80211_IFTYPE_NAN)
670                 DEBUGFS_ADD(aqm);
671 }
672
673 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
674 {
675         DEBUGFS_ADD(bssid);
676         DEBUGFS_ADD(aid);
677         DEBUGFS_ADD(beacon_timeout);
678         DEBUGFS_ADD_MODE(smps, 0600);
679         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
680         DEBUGFS_ADD_MODE(beacon_loss, 0200);
681         DEBUGFS_ADD_MODE(uapsd_queues, 0600);
682         DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
683         DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
684 }
685
686 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
687 {
688         DEBUGFS_ADD(num_mcast_sta);
689         DEBUGFS_ADD_MODE(smps, 0600);
690         DEBUGFS_ADD(num_sta_ps);
691         DEBUGFS_ADD(dtim_count);
692         DEBUGFS_ADD(num_buffered_multicast);
693         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
694         DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
695 }
696
697 static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
698 {
699         /* add num_mcast_sta_vlan using name num_mcast_sta */
700         debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
701                             sdata, &num_mcast_sta_vlan_ops);
702 }
703
704 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
705 {
706         DEBUGFS_ADD_MODE(tsf, 0600);
707 }
708
709 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
710 {
711         DEBUGFS_ADD(peer);
712 }
713
714 #ifdef CONFIG_MAC80211_MESH
715
716 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
717 {
718         DEBUGFS_ADD_MODE(tsf, 0600);
719         DEBUGFS_ADD_MODE(estab_plinks, 0400);
720 }
721
722 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
723 {
724         struct dentry *dir = debugfs_create_dir("mesh_stats",
725                                                 sdata->vif.debugfs_dir);
726 #define MESHSTATS_ADD(name)\
727         debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
728
729         MESHSTATS_ADD(fwded_mcast);
730         MESHSTATS_ADD(fwded_unicast);
731         MESHSTATS_ADD(fwded_frames);
732         MESHSTATS_ADD(dropped_frames_ttl);
733         MESHSTATS_ADD(dropped_frames_no_route);
734         MESHSTATS_ADD(dropped_frames_congestion);
735 #undef MESHSTATS_ADD
736 }
737
738 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
739 {
740         struct dentry *dir = debugfs_create_dir("mesh_config",
741                                                 sdata->vif.debugfs_dir);
742
743 #define MESHPARAMS_ADD(name) \
744         debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
745
746         MESHPARAMS_ADD(dot11MeshMaxRetries);
747         MESHPARAMS_ADD(dot11MeshRetryTimeout);
748         MESHPARAMS_ADD(dot11MeshConfirmTimeout);
749         MESHPARAMS_ADD(dot11MeshHoldingTimeout);
750         MESHPARAMS_ADD(dot11MeshTTL);
751         MESHPARAMS_ADD(element_ttl);
752         MESHPARAMS_ADD(auto_open_plinks);
753         MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
754         MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
755         MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
756         MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
757         MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
758         MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
759         MESHPARAMS_ADD(path_refresh_time);
760         MESHPARAMS_ADD(min_discovery_timeout);
761         MESHPARAMS_ADD(dot11MeshHWMPRootMode);
762         MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
763         MESHPARAMS_ADD(dot11MeshForwarding);
764         MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
765         MESHPARAMS_ADD(rssi_threshold);
766         MESHPARAMS_ADD(ht_opmode);
767         MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
768         MESHPARAMS_ADD(dot11MeshHWMProotInterval);
769         MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
770         MESHPARAMS_ADD(power_mode);
771         MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
772 #undef MESHPARAMS_ADD
773 }
774 #endif
775
776 static void add_files(struct ieee80211_sub_if_data *sdata)
777 {
778         if (!sdata->vif.debugfs_dir)
779                 return;
780
781         DEBUGFS_ADD(flags);
782         DEBUGFS_ADD(state);
783         DEBUGFS_ADD(txpower);
784         DEBUGFS_ADD(user_power_level);
785         DEBUGFS_ADD(ap_power_level);
786
787         if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
788                 add_common_files(sdata);
789
790         switch (sdata->vif.type) {
791         case NL80211_IFTYPE_MESH_POINT:
792 #ifdef CONFIG_MAC80211_MESH
793                 add_mesh_files(sdata);
794                 add_mesh_stats(sdata);
795                 add_mesh_config(sdata);
796 #endif
797                 break;
798         case NL80211_IFTYPE_STATION:
799                 add_sta_files(sdata);
800                 break;
801         case NL80211_IFTYPE_ADHOC:
802                 add_ibss_files(sdata);
803                 break;
804         case NL80211_IFTYPE_AP:
805                 add_ap_files(sdata);
806                 break;
807         case NL80211_IFTYPE_AP_VLAN:
808                 add_vlan_files(sdata);
809                 break;
810         case NL80211_IFTYPE_WDS:
811                 add_wds_files(sdata);
812                 break;
813         default:
814                 break;
815         }
816 }
817
818 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
819 {
820         char buf[10+IFNAMSIZ];
821
822         sprintf(buf, "netdev:%s", sdata->name);
823         sdata->vif.debugfs_dir = debugfs_create_dir(buf,
824                 sdata->local->hw.wiphy->debugfsdir);
825         if (sdata->vif.debugfs_dir)
826                 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
827                         sdata->vif.debugfs_dir);
828         add_files(sdata);
829 }
830
831 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
832 {
833         if (!sdata->vif.debugfs_dir)
834                 return;
835
836         debugfs_remove_recursive(sdata->vif.debugfs_dir);
837         sdata->vif.debugfs_dir = NULL;
838         sdata->debugfs.subdir_stations = NULL;
839 }
840
841 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
842 {
843         struct dentry *dir;
844         char buf[10 + IFNAMSIZ];
845
846         dir = sdata->vif.debugfs_dir;
847
848         if (!dir)
849                 return;
850
851         sprintf(buf, "netdev:%s", sdata->name);
852         if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
853                 sdata_err(sdata,
854                           "debugfs: failed to rename debugfs dir to %s\n",
855                           buf);
856 }