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
ieee80211_if_read(struct ieee80211_sub_if_data * sdata,char __user * userbuf,size_t count,loff_t * ppos,ssize_t (* format)(const struct ieee80211_sub_if_data *,char *,int))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
ieee80211_if_write(struct ieee80211_sub_if_data * sdata,const char __user * userbuf,size_t count,loff_t * ppos,ssize_t (* write)(struct ieee80211_sub_if_data *,const char *,int))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
ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_set_smps(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)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
ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_parse_smps(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
ieee80211_if_parse_tkip_mic_test(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
ieee80211_if_parse_beacon_loss(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
ieee80211_if_fmt_uapsd_queues(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_parse_uapsd_queues(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
ieee80211_if_fmt_uapsd_max_sp_len(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_parse_uapsd_max_sp_len(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
ieee80211_if_fmt_tdls_wider_bw(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_parse_tdls_wider_bw(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
ieee80211_if_fmt_num_buffered_multicast(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_fmt_aqm(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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 */
ieee80211_if_fmt_tsf(const struct ieee80211_sub_if_data * sdata,char * buf,int buflen)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
ieee80211_if_parse_tsf(struct ieee80211_sub_if_data * sdata,const char * buf,int buflen)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
add_common_files(struct ieee80211_sub_if_data * sdata)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
add_sta_files(struct ieee80211_sub_if_data * sdata)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
add_ap_files(struct ieee80211_sub_if_data * sdata)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
add_vlan_files(struct ieee80211_sub_if_data * sdata)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
add_ibss_files(struct ieee80211_sub_if_data * sdata)704 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
705 {
706 DEBUGFS_ADD_MODE(tsf, 0600);
707 }
708
add_wds_files(struct ieee80211_sub_if_data * sdata)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
add_mesh_files(struct ieee80211_sub_if_data * sdata)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
add_mesh_stats(struct ieee80211_sub_if_data * sdata)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
add_mesh_config(struct ieee80211_sub_if_data * sdata)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
add_files(struct ieee80211_sub_if_data * sdata)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
ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data * sdata)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
ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data * sdata)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
ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data * sdata)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 }
857