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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (C) 2020 Intel Corporation
6 */
7
8#include <linux/kernel.h>
9#include <linux/device.h>
10#include <linux/if.h>
11#include <linux/if_ether.h>
12#include <linux/interrupt.h>
13#include <linux/netdevice.h>
14#include <linux/rtnetlink.h>
15#include <linux/slab.h>
16#include <linux/notifier.h>
17#include <net/mac80211.h>
18#include <net/cfg80211.h>
19#include "ieee80211_i.h"
20#include "rate.h"
21#include "debugfs.h"
22#include "debugfs_netdev.h"
23#include "driver-ops.h"
24
25static ssize_t ieee80211_if_read(
26 struct ieee80211_sub_if_data *sdata,
27 char __user *userbuf,
28 size_t count, loff_t *ppos,
29 ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
30{
31 char buf[200];
32 ssize_t ret = -EINVAL;
33
34 read_lock(&dev_base_lock);
35 ret = (*format)(sdata, buf, sizeof(buf));
36 read_unlock(&dev_base_lock);
37
38 if (ret >= 0)
39 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
40
41 return ret;
42}
43
44static ssize_t ieee80211_if_write(
45 struct ieee80211_sub_if_data *sdata,
46 const char __user *userbuf,
47 size_t count, loff_t *ppos,
48 ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
49{
50 char buf[64];
51 ssize_t ret;
52
53 if (count >= sizeof(buf))
54 return -E2BIG;
55
56 if (copy_from_user(buf, userbuf, count))
57 return -EFAULT;
58 buf[count] = '\0';
59
60 ret = -ENODEV;
61 rtnl_lock();
62 ret = (*write)(sdata, buf, count);
63 rtnl_unlock();
64
65 return ret;
66}
67
68#define IEEE80211_IF_FMT(name, field, format_string) \
69static ssize_t ieee80211_if_fmt_##name( \
70 const struct ieee80211_sub_if_data *sdata, char *buf, \
71 int buflen) \
72{ \
73 return scnprintf(buf, buflen, format_string, sdata->field); \
74}
75#define IEEE80211_IF_FMT_DEC(name, field) \
76 IEEE80211_IF_FMT(name, field, "%d\n")
77#define IEEE80211_IF_FMT_HEX(name, field) \
78 IEEE80211_IF_FMT(name, field, "%#x\n")
79#define IEEE80211_IF_FMT_LHEX(name, field) \
80 IEEE80211_IF_FMT(name, field, "%#lx\n")
81#define IEEE80211_IF_FMT_SIZE(name, field) \
82 IEEE80211_IF_FMT(name, field, "%zd\n")
83
84#define IEEE80211_IF_FMT_HEXARRAY(name, field) \
85static ssize_t ieee80211_if_fmt_##name( \
86 const struct ieee80211_sub_if_data *sdata, \
87 char *buf, int buflen) \
88{ \
89 char *p = buf; \
90 int i; \
91 for (i = 0; i < sizeof(sdata->field); i++) { \
92 p += scnprintf(p, buflen + buf - p, "%.2x ", \
93 sdata->field[i]); \
94 } \
95 p += scnprintf(p, buflen + buf - p, "\n"); \
96 return p - buf; \
97}
98
99#define IEEE80211_IF_FMT_ATOMIC(name, field) \
100static ssize_t ieee80211_if_fmt_##name( \
101 const struct ieee80211_sub_if_data *sdata, \
102 char *buf, int buflen) \
103{ \
104 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
105}
106
107#define IEEE80211_IF_FMT_MAC(name, field) \
108static ssize_t ieee80211_if_fmt_##name( \
109 const struct ieee80211_sub_if_data *sdata, char *buf, \
110 int buflen) \
111{ \
112 return scnprintf(buf, buflen, "%pM\n", sdata->field); \
113}
114
115#define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \
116static ssize_t ieee80211_if_fmt_##name( \
117 const struct ieee80211_sub_if_data *sdata, \
118 char *buf, int buflen) \
119{ \
120 return scnprintf(buf, buflen, "%d\n", \
121 jiffies_to_msecs(sdata->field)); \
122}
123
124#define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
125static const struct file_operations name##_ops = { \
126 .read = (_read), \
127 .write = (_write), \
128 .open = simple_open, \
129 .llseek = generic_file_llseek, \
130}
131
132#define _IEEE80211_IF_FILE_R_FN(name) \
133static ssize_t ieee80211_if_read_##name(struct file *file, \
134 char __user *userbuf, \
135 size_t count, loff_t *ppos) \
136{ \
137 return ieee80211_if_read(file->private_data, \
138 userbuf, count, ppos, \
139 ieee80211_if_fmt_##name); \
140}
141
142#define _IEEE80211_IF_FILE_W_FN(name) \
143static ssize_t ieee80211_if_write_##name(struct file *file, \
144 const char __user *userbuf, \
145 size_t count, loff_t *ppos) \
146{ \
147 return ieee80211_if_write(file->private_data, userbuf, count, \
148 ppos, ieee80211_if_parse_##name); \
149}
150
151#define IEEE80211_IF_FILE_R(name) \
152 _IEEE80211_IF_FILE_R_FN(name) \
153 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
154
155#define IEEE80211_IF_FILE_W(name) \
156 _IEEE80211_IF_FILE_W_FN(name) \
157 _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
158
159#define IEEE80211_IF_FILE_RW(name) \
160 _IEEE80211_IF_FILE_R_FN(name) \
161 _IEEE80211_IF_FILE_W_FN(name) \
162 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \
163 ieee80211_if_write_##name)
164
165#define IEEE80211_IF_FILE(name, field, format) \
166 IEEE80211_IF_FMT_##format(name, field) \
167 IEEE80211_IF_FILE_R(name)
168
169/* common attributes */
170IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
171 HEX);
172IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
173 HEX);
174IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
175 rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
176IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
177 rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
178
179static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
180 const struct ieee80211_sub_if_data *sdata,
181 char *buf, int buflen)
182{
183 int i, len = 0;
184 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
185
186 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
187 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
188 len += scnprintf(buf + len, buflen - len, "\n");
189
190 return len;
191}
192
193IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
194
195static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
196 const struct ieee80211_sub_if_data *sdata,
197 char *buf, int buflen)
198{
199 int i, len = 0;
200 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
201
202 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
203 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
204 len += scnprintf(buf + len, buflen - len, "\n");
205
206 return len;
207}
208
209IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
210
211IEEE80211_IF_FILE(flags, flags, HEX);
212IEEE80211_IF_FILE(state, state, LHEX);
213IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
214IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
215IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
216
217static ssize_t
218ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
219 char *buf, int buflen)
220{
221 int len;
222
223 len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
224 sdata->vif.hw_queue[IEEE80211_AC_VO],
225 sdata->vif.hw_queue[IEEE80211_AC_VI],
226 sdata->vif.hw_queue[IEEE80211_AC_BE],
227 sdata->vif.hw_queue[IEEE80211_AC_BK]);
228
229 if (sdata->vif.type == NL80211_IFTYPE_AP)
230 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
231 sdata->vif.cab_queue);
232
233 return len;
234}
235IEEE80211_IF_FILE_R(hw_queues);
236
237/* STA attributes */
238IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
239IEEE80211_IF_FILE(aid, vif.bss_conf.aid, DEC);
240IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
241
242static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
243 enum ieee80211_smps_mode smps_mode)
244{
245 struct ieee80211_local *local = sdata->local;
246 int err;
247
248 if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
249 smps_mode == IEEE80211_SMPS_STATIC)
250 return -EINVAL;
251
252 /* auto should be dynamic if in PS mode */
253 if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
254 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
255 smps_mode == IEEE80211_SMPS_AUTOMATIC))
256 return -EINVAL;
257
258 if (sdata->vif.type != NL80211_IFTYPE_STATION)
259 return -EOPNOTSUPP;
260
261 sdata_lock(sdata);
262 err = __ieee80211_request_smps_mgd(sdata, smps_mode);
263 sdata_unlock(sdata);
264
265 return err;
266}
267
268static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
269 [IEEE80211_SMPS_AUTOMATIC] = "auto",
270 [IEEE80211_SMPS_OFF] = "off",
271 [IEEE80211_SMPS_STATIC] = "static",
272 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
273};
274
275static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
276 char *buf, int buflen)
277{
278 if (sdata->vif.type == NL80211_IFTYPE_STATION)
279 return snprintf(buf, buflen, "request: %s\nused: %s\n",
280 smps_modes[sdata->u.mgd.req_smps],
281 smps_modes[sdata->smps_mode]);
282 return -EINVAL;
283}
284
285static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
286 const char *buf, int buflen)
287{
288 enum ieee80211_smps_mode mode;
289
290 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
291 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
292 int err = ieee80211_set_smps(sdata, mode);
293 if (!err)
294 return buflen;
295 return err;
296 }
297 }
298
299 return -EINVAL;
300}
301IEEE80211_IF_FILE_RW(smps);
302
303static ssize_t ieee80211_if_parse_tkip_mic_test(
304 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
305{
306 struct ieee80211_local *local = sdata->local;
307 u8 addr[ETH_ALEN];
308 struct sk_buff *skb;
309 struct ieee80211_hdr *hdr;
310 __le16 fc;
311
312 if (!mac_pton(buf, addr))
313 return -EINVAL;
314
315 if (!ieee80211_sdata_running(sdata))
316 return -ENOTCONN;
317
318 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
319 if (!skb)
320 return -ENOMEM;
321 skb_reserve(skb, local->hw.extra_tx_headroom);
322
323 hdr = skb_put_zero(skb, 24);
324 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
325
326 switch (sdata->vif.type) {
327 case NL80211_IFTYPE_AP:
328 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
329 /* DA BSSID SA */
330 memcpy(hdr->addr1, addr, ETH_ALEN);
331 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
332 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
333 break;
334 case NL80211_IFTYPE_STATION:
335 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
336 /* BSSID SA DA */
337 sdata_lock(sdata);
338 if (!sdata->u.mgd.associated) {
339 sdata_unlock(sdata);
340 dev_kfree_skb(skb);
341 return -ENOTCONN;
342 }
343 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
344 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
345 memcpy(hdr->addr3, addr, ETH_ALEN);
346 sdata_unlock(sdata);
347 break;
348 default:
349 dev_kfree_skb(skb);
350 return -EOPNOTSUPP;
351 }
352 hdr->frame_control = fc;
353
354 /*
355 * Add some length to the test frame to make it look bit more valid.
356 * The exact contents does not matter since the recipient is required
357 * to drop this because of the Michael MIC failure.
358 */
359 skb_put_zero(skb, 50);
360
361 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
362
363 ieee80211_tx_skb(sdata, skb);
364
365 return buflen;
366}
367IEEE80211_IF_FILE_W(tkip_mic_test);
368
369static ssize_t ieee80211_if_parse_beacon_loss(
370 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
371{
372 if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
373 return -ENOTCONN;
374
375 ieee80211_beacon_loss(&sdata->vif);
376
377 return buflen;
378}
379IEEE80211_IF_FILE_W(beacon_loss);
380
381static ssize_t ieee80211_if_fmt_uapsd_queues(
382 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
383{
384 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
385
386 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
387}
388
389static ssize_t ieee80211_if_parse_uapsd_queues(
390 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
391{
392 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
393 u8 val;
394 int ret;
395
396 ret = kstrtou8(buf, 0, &val);
397 if (ret)
398 return ret;
399
400 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
401 return -ERANGE;
402
403 ifmgd->uapsd_queues = val;
404
405 return buflen;
406}
407IEEE80211_IF_FILE_RW(uapsd_queues);
408
409static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
410 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
411{
412 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
413
414 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
415}
416
417static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
418 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
419{
420 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
421 unsigned long val;
422 int ret;
423
424 ret = kstrtoul(buf, 0, &val);
425 if (ret)
426 return -EINVAL;
427
428 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
429 return -ERANGE;
430
431 ifmgd->uapsd_max_sp_len = val;
432
433 return buflen;
434}
435IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
436
437static ssize_t ieee80211_if_fmt_tdls_wider_bw(
438 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
439{
440 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
441 bool tdls_wider_bw;
442
443 tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
444 !ifmgd->tdls_wider_bw_prohibited;
445
446 return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
447}
448
449static ssize_t ieee80211_if_parse_tdls_wider_bw(
450 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
451{
452 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
453 u8 val;
454 int ret;
455
456 ret = kstrtou8(buf, 0, &val);
457 if (ret)
458 return ret;
459
460 ifmgd->tdls_wider_bw_prohibited = !val;
461 return buflen;
462}
463IEEE80211_IF_FILE_RW(tdls_wider_bw);
464
465/* AP attributes */
466IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
467IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
468IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
469IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
470
471static ssize_t ieee80211_if_fmt_num_buffered_multicast(
472 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
473{
474 return scnprintf(buf, buflen, "%u\n",
475 skb_queue_len(&sdata->u.ap.ps.bc_buf));
476}
477IEEE80211_IF_FILE_R(num_buffered_multicast);
478
479static ssize_t ieee80211_if_fmt_aqm(
480 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
481{
482 struct ieee80211_local *local = sdata->local;
483 struct txq_info *txqi;
484 int len;
485
486 if (!sdata->vif.txq)
487 return 0;
488
489 txqi = to_txq_info(sdata->vif.txq);
490
491 spin_lock_bh(&local->fq.lock);
492 rcu_read_lock();
493
494 len = scnprintf(buf,
495 buflen,
496 "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
497 "%u %u %u %u %u %u %u %u %u %u\n",
498 txqi->txq.ac,
499 txqi->tin.backlog_bytes,
500 txqi->tin.backlog_packets,
501 txqi->tin.flows,
502 txqi->cstats.drop_count,
503 txqi->cstats.ecn_mark,
504 txqi->tin.overlimit,
505 txqi->tin.collisions,
506 txqi->tin.tx_bytes,
507 txqi->tin.tx_packets);
508
509 rcu_read_unlock();
510 spin_unlock_bh(&local->fq.lock);
511
512 return len;
513}
514IEEE80211_IF_FILE_R(aqm);
515
516IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
517
518/* IBSS attributes */
519static ssize_t ieee80211_if_fmt_tsf(
520 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
521{
522 struct ieee80211_local *local = sdata->local;
523 u64 tsf;
524
525 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
526
527 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
528}
529
530static ssize_t ieee80211_if_parse_tsf(
531 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
532{
533 struct ieee80211_local *local = sdata->local;
534 unsigned long long tsf;
535 int ret;
536 int tsf_is_delta = 0;
537
538 if (strncmp(buf, "reset", 5) == 0) {
539 if (local->ops->reset_tsf) {
540 drv_reset_tsf(local, sdata);
541 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
542 }
543 } else {
544 if (buflen > 10 && buf[1] == '=') {
545 if (buf[0] == '+')
546 tsf_is_delta = 1;
547 else if (buf[0] == '-')
548 tsf_is_delta = -1;
549 else
550 return -EINVAL;
551 buf += 2;
552 }
553 ret = kstrtoull(buf, 10, &tsf);
554 if (ret < 0)
555 return ret;
556 if (tsf_is_delta && local->ops->offset_tsf) {
557 drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
558 wiphy_info(local->hw.wiphy,
559 "debugfs offset TSF by %018lld\n",
560 tsf_is_delta * tsf);
561 } else if (local->ops->set_tsf) {
562 if (tsf_is_delta)
563 tsf = drv_get_tsf(local, sdata) +
564 tsf_is_delta * tsf;
565 drv_set_tsf(local, sdata, tsf);
566 wiphy_info(local->hw.wiphy,
567 "debugfs set TSF to %#018llx\n", tsf);
568 }
569 }
570
571 ieee80211_recalc_dtim(local, sdata);
572 return buflen;
573}
574IEEE80211_IF_FILE_RW(tsf);
575
576
577/* WDS attributes */
578IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
579
580#ifdef CONFIG_MAC80211_MESH
581IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
582
583/* Mesh stats attributes */
584IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
585IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
586IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
587IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
588IEEE80211_IF_FILE(dropped_frames_congestion,
589 u.mesh.mshstats.dropped_frames_congestion, DEC);
590IEEE80211_IF_FILE(dropped_frames_no_route,
591 u.mesh.mshstats.dropped_frames_no_route, DEC);
592
593/* Mesh parameters */
594IEEE80211_IF_FILE(dot11MeshMaxRetries,
595 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
596IEEE80211_IF_FILE(dot11MeshRetryTimeout,
597 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
598IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
599 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
600IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
601 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
602IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
603IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
604IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
605IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
606 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
607IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
608 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
609IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
610 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
611IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
612 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
613IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
614 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
615IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
616 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
617IEEE80211_IF_FILE(path_refresh_time,
618 u.mesh.mshcfg.path_refresh_time, DEC);
619IEEE80211_IF_FILE(min_discovery_timeout,
620 u.mesh.mshcfg.min_discovery_timeout, DEC);
621IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
622 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
623IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
624 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
625IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
626 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
627IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
628IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
629IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
630IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
631 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
632IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
633 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
634IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
635 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
636IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
637IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
638 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
639IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
640 u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
641IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
642IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
643 u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
644#endif
645
646#define DEBUGFS_ADD_MODE(name, mode) \
647 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
648 sdata, &name##_ops);
649
650#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
651
652static void add_common_files(struct ieee80211_sub_if_data *sdata)
653{
654 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
655 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
656 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
657 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
658 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
659 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
660 DEBUGFS_ADD(hw_queues);
661
662 if (sdata->local->ops->wake_tx_queue &&
663 sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
664 sdata->vif.type != NL80211_IFTYPE_NAN)
665 DEBUGFS_ADD(aqm);
666}
667
668static void add_sta_files(struct ieee80211_sub_if_data *sdata)
669{
670 DEBUGFS_ADD(bssid);
671 DEBUGFS_ADD(aid);
672 DEBUGFS_ADD(beacon_timeout);
673 DEBUGFS_ADD_MODE(smps, 0600);
674 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
675 DEBUGFS_ADD_MODE(beacon_loss, 0200);
676 DEBUGFS_ADD_MODE(uapsd_queues, 0600);
677 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
678 DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
679}
680
681static void add_ap_files(struct ieee80211_sub_if_data *sdata)
682{
683 DEBUGFS_ADD(num_mcast_sta);
684 DEBUGFS_ADD_MODE(smps, 0600);
685 DEBUGFS_ADD(num_sta_ps);
686 DEBUGFS_ADD(dtim_count);
687 DEBUGFS_ADD(num_buffered_multicast);
688 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
689 DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
690}
691
692static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
693{
694 /* add num_mcast_sta_vlan using name num_mcast_sta */
695 debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
696 sdata, &num_mcast_sta_vlan_ops);
697}
698
699static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
700{
701 DEBUGFS_ADD_MODE(tsf, 0600);
702}
703
704static void add_wds_files(struct ieee80211_sub_if_data *sdata)
705{
706 DEBUGFS_ADD(peer);
707}
708
709#ifdef CONFIG_MAC80211_MESH
710
711static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
712{
713 DEBUGFS_ADD_MODE(tsf, 0600);
714 DEBUGFS_ADD_MODE(estab_plinks, 0400);
715}
716
717static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
718{
719 struct dentry *dir = debugfs_create_dir("mesh_stats",
720 sdata->vif.debugfs_dir);
721#define MESHSTATS_ADD(name)\
722 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
723
724 MESHSTATS_ADD(fwded_mcast);
725 MESHSTATS_ADD(fwded_unicast);
726 MESHSTATS_ADD(fwded_frames);
727 MESHSTATS_ADD(dropped_frames_ttl);
728 MESHSTATS_ADD(dropped_frames_no_route);
729 MESHSTATS_ADD(dropped_frames_congestion);
730#undef MESHSTATS_ADD
731}
732
733static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
734{
735 struct dentry *dir = debugfs_create_dir("mesh_config",
736 sdata->vif.debugfs_dir);
737
738#define MESHPARAMS_ADD(name) \
739 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
740
741 MESHPARAMS_ADD(dot11MeshMaxRetries);
742 MESHPARAMS_ADD(dot11MeshRetryTimeout);
743 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
744 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
745 MESHPARAMS_ADD(dot11MeshTTL);
746 MESHPARAMS_ADD(element_ttl);
747 MESHPARAMS_ADD(auto_open_plinks);
748 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
749 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
750 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
751 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
752 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
753 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
754 MESHPARAMS_ADD(path_refresh_time);
755 MESHPARAMS_ADD(min_discovery_timeout);
756 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
757 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
758 MESHPARAMS_ADD(dot11MeshForwarding);
759 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
760 MESHPARAMS_ADD(rssi_threshold);
761 MESHPARAMS_ADD(ht_opmode);
762 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
763 MESHPARAMS_ADD(dot11MeshHWMProotInterval);
764 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
765 MESHPARAMS_ADD(power_mode);
766 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
767 MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
768 MESHPARAMS_ADD(dot11MeshNolearn);
769 MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
770#undef MESHPARAMS_ADD
771}
772#endif
773
774static void add_files(struct ieee80211_sub_if_data *sdata)
775{
776 if (!sdata->vif.debugfs_dir)
777 return;
778
779 DEBUGFS_ADD(flags);
780 DEBUGFS_ADD(state);
781 DEBUGFS_ADD(txpower);
782 DEBUGFS_ADD(user_power_level);
783 DEBUGFS_ADD(ap_power_level);
784
785 if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
786 add_common_files(sdata);
787
788 switch (sdata->vif.type) {
789 case NL80211_IFTYPE_MESH_POINT:
790#ifdef CONFIG_MAC80211_MESH
791 add_mesh_files(sdata);
792 add_mesh_stats(sdata);
793 add_mesh_config(sdata);
794#endif
795 break;
796 case NL80211_IFTYPE_STATION:
797 add_sta_files(sdata);
798 break;
799 case NL80211_IFTYPE_ADHOC:
800 add_ibss_files(sdata);
801 break;
802 case NL80211_IFTYPE_AP:
803 add_ap_files(sdata);
804 break;
805 case NL80211_IFTYPE_AP_VLAN:
806 add_vlan_files(sdata);
807 break;
808 case NL80211_IFTYPE_WDS:
809 add_wds_files(sdata);
810 break;
811 default:
812 break;
813 }
814}
815
816void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
817{
818 char buf[10+IFNAMSIZ];
819
820 sprintf(buf, "netdev:%s", sdata->name);
821 sdata->vif.debugfs_dir = debugfs_create_dir(buf,
822 sdata->local->hw.wiphy->debugfsdir);
823 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
824 sdata->vif.debugfs_dir);
825 add_files(sdata);
826}
827
828void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
829{
830 if (!sdata->vif.debugfs_dir)
831 return;
832
833 debugfs_remove_recursive(sdata->vif.debugfs_dir);
834 sdata->vif.debugfs_dir = NULL;
835 sdata->debugfs.subdir_stations = NULL;
836}
837
838void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
839{
840 struct dentry *dir;
841 char buf[10 + IFNAMSIZ];
842
843 dir = sdata->vif.debugfs_dir;
844
845 if (IS_ERR_OR_NULL(dir))
846 return;
847
848 sprintf(buf, "netdev:%s", sdata->name);
849 debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
850}
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
27static 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 ret = (*format)(sdata, buf, sizeof(buf));
38 read_unlock(&dev_base_lock);
39
40 if (ret >= 0)
41 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
42
43 return ret;
44}
45
46static ssize_t ieee80211_if_write(
47 struct ieee80211_sub_if_data *sdata,
48 const char __user *userbuf,
49 size_t count, loff_t *ppos,
50 ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
51{
52 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) \
71static 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) \
87static 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) \
102static 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) \
110static 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) \
118static 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) \
127static 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) \
135static 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) \
145static 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 */
172IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
173 HEX);
174IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
175 HEX);
176IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
177 rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY);
178IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
179 rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
180
181static 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[IEEE80211_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
195IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
196
197static 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[IEEE80211_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
211IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
212
213IEEE80211_IF_FILE(flags, flags, HEX);
214IEEE80211_IF_FILE(state, state, LHEX);
215IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
216IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
217IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
218
219static ssize_t
220ieee80211_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}
237IEEE80211_IF_FILE_R(hw_queues);
238
239/* STA attributes */
240IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
241IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
242IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
243
244static 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
274static 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
281static 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
295static 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}
311IEEE80211_IF_FILE_RW(smps);
312
313static 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 = (struct ieee80211_hdr *) skb_put(skb, 24);
334 memset(hdr, 0, 24);
335 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
336
337 switch (sdata->vif.type) {
338 case NL80211_IFTYPE_AP:
339 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
340 /* DA BSSID SA */
341 memcpy(hdr->addr1, addr, ETH_ALEN);
342 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
343 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
344 break;
345 case NL80211_IFTYPE_STATION:
346 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
347 /* BSSID SA DA */
348 sdata_lock(sdata);
349 if (!sdata->u.mgd.associated) {
350 sdata_unlock(sdata);
351 dev_kfree_skb(skb);
352 return -ENOTCONN;
353 }
354 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
355 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
356 memcpy(hdr->addr3, addr, ETH_ALEN);
357 sdata_unlock(sdata);
358 break;
359 default:
360 dev_kfree_skb(skb);
361 return -EOPNOTSUPP;
362 }
363 hdr->frame_control = fc;
364
365 /*
366 * Add some length to the test frame to make it look bit more valid.
367 * The exact contents does not matter since the recipient is required
368 * to drop this because of the Michael MIC failure.
369 */
370 memset(skb_put(skb, 50), 0, 50);
371
372 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
373
374 ieee80211_tx_skb(sdata, skb);
375
376 return buflen;
377}
378IEEE80211_IF_FILE_W(tkip_mic_test);
379
380static ssize_t ieee80211_if_parse_beacon_loss(
381 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
382{
383 if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
384 return -ENOTCONN;
385
386 ieee80211_beacon_loss(&sdata->vif);
387
388 return buflen;
389}
390IEEE80211_IF_FILE_W(beacon_loss);
391
392static ssize_t ieee80211_if_fmt_uapsd_queues(
393 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
394{
395 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
396
397 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
398}
399
400static ssize_t ieee80211_if_parse_uapsd_queues(
401 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
402{
403 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
404 u8 val;
405 int ret;
406
407 ret = kstrtou8(buf, 0, &val);
408 if (ret)
409 return ret;
410
411 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
412 return -ERANGE;
413
414 ifmgd->uapsd_queues = val;
415
416 return buflen;
417}
418IEEE80211_IF_FILE_RW(uapsd_queues);
419
420static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
421 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
422{
423 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
424
425 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
426}
427
428static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
429 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
430{
431 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
432 unsigned long val;
433 int ret;
434
435 ret = kstrtoul(buf, 0, &val);
436 if (ret)
437 return -EINVAL;
438
439 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
440 return -ERANGE;
441
442 ifmgd->uapsd_max_sp_len = val;
443
444 return buflen;
445}
446IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
447
448static ssize_t ieee80211_if_fmt_tdls_wider_bw(
449 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
450{
451 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
452 bool tdls_wider_bw;
453
454 tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
455 !ifmgd->tdls_wider_bw_prohibited;
456
457 return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
458}
459
460static ssize_t ieee80211_if_parse_tdls_wider_bw(
461 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
462{
463 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
464 u8 val;
465 int ret;
466
467 ret = kstrtou8(buf, 0, &val);
468 if (ret)
469 return ret;
470
471 ifmgd->tdls_wider_bw_prohibited = !val;
472 return buflen;
473}
474IEEE80211_IF_FILE_RW(tdls_wider_bw);
475
476/* AP attributes */
477IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
478IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
479IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
480
481static 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}
487IEEE80211_IF_FILE_R(num_buffered_multicast);
488
489/* IBSS attributes */
490static ssize_t ieee80211_if_fmt_tsf(
491 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
492{
493 struct ieee80211_local *local = sdata->local;
494 u64 tsf;
495
496 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
497
498 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
499}
500
501static ssize_t ieee80211_if_parse_tsf(
502 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
503{
504 struct ieee80211_local *local = sdata->local;
505 unsigned long long tsf;
506 int ret;
507 int tsf_is_delta = 0;
508
509 if (strncmp(buf, "reset", 5) == 0) {
510 if (local->ops->reset_tsf) {
511 drv_reset_tsf(local, sdata);
512 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
513 }
514 } else {
515 if (buflen > 10 && buf[1] == '=') {
516 if (buf[0] == '+')
517 tsf_is_delta = 1;
518 else if (buf[0] == '-')
519 tsf_is_delta = -1;
520 else
521 return -EINVAL;
522 buf += 2;
523 }
524 ret = kstrtoull(buf, 10, &tsf);
525 if (ret < 0)
526 return ret;
527 if (tsf_is_delta)
528 tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
529 if (local->ops->set_tsf) {
530 drv_set_tsf(local, sdata, tsf);
531 wiphy_info(local->hw.wiphy,
532 "debugfs set TSF to %#018llx\n", tsf);
533 }
534 }
535
536 ieee80211_recalc_dtim(local, sdata);
537 return buflen;
538}
539IEEE80211_IF_FILE_RW(tsf);
540
541
542/* WDS attributes */
543IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
544
545#ifdef CONFIG_MAC80211_MESH
546IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
547
548/* Mesh stats attributes */
549IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
550IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
551IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
552IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
553IEEE80211_IF_FILE(dropped_frames_congestion,
554 u.mesh.mshstats.dropped_frames_congestion, DEC);
555IEEE80211_IF_FILE(dropped_frames_no_route,
556 u.mesh.mshstats.dropped_frames_no_route, DEC);
557
558/* Mesh parameters */
559IEEE80211_IF_FILE(dot11MeshMaxRetries,
560 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
561IEEE80211_IF_FILE(dot11MeshRetryTimeout,
562 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
563IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
564 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
565IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
566 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
567IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
568IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
569IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
570IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
571 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
572IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
573 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
574IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
575 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
576IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
577 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
578IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
579 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
580IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
581 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
582IEEE80211_IF_FILE(path_refresh_time,
583 u.mesh.mshcfg.path_refresh_time, DEC);
584IEEE80211_IF_FILE(min_discovery_timeout,
585 u.mesh.mshcfg.min_discovery_timeout, DEC);
586IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
587 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
588IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
589 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
590IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
591 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
592IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
593IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
594IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
595IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
596 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
597IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
598 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
599IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
600 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
601IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
602IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
603 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
604#endif
605
606#define DEBUGFS_ADD_MODE(name, mode) \
607 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
608 sdata, &name##_ops);
609
610#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
611
612static void add_common_files(struct ieee80211_sub_if_data *sdata)
613{
614 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
615 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
616 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
617 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
618 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
619 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
620 DEBUGFS_ADD(hw_queues);
621}
622
623static void add_sta_files(struct ieee80211_sub_if_data *sdata)
624{
625 DEBUGFS_ADD(bssid);
626 DEBUGFS_ADD(aid);
627 DEBUGFS_ADD(beacon_timeout);
628 DEBUGFS_ADD_MODE(smps, 0600);
629 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
630 DEBUGFS_ADD_MODE(beacon_loss, 0200);
631 DEBUGFS_ADD_MODE(uapsd_queues, 0600);
632 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
633 DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
634}
635
636static void add_ap_files(struct ieee80211_sub_if_data *sdata)
637{
638 DEBUGFS_ADD(num_mcast_sta);
639 DEBUGFS_ADD_MODE(smps, 0600);
640 DEBUGFS_ADD(num_sta_ps);
641 DEBUGFS_ADD(dtim_count);
642 DEBUGFS_ADD(num_buffered_multicast);
643 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
644}
645
646static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
647{
648 DEBUGFS_ADD_MODE(tsf, 0600);
649}
650
651static void add_wds_files(struct ieee80211_sub_if_data *sdata)
652{
653 DEBUGFS_ADD(peer);
654}
655
656#ifdef CONFIG_MAC80211_MESH
657
658static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
659{
660 DEBUGFS_ADD_MODE(tsf, 0600);
661 DEBUGFS_ADD_MODE(estab_plinks, 0400);
662}
663
664static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
665{
666 struct dentry *dir = debugfs_create_dir("mesh_stats",
667 sdata->vif.debugfs_dir);
668#define MESHSTATS_ADD(name)\
669 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
670
671 MESHSTATS_ADD(fwded_mcast);
672 MESHSTATS_ADD(fwded_unicast);
673 MESHSTATS_ADD(fwded_frames);
674 MESHSTATS_ADD(dropped_frames_ttl);
675 MESHSTATS_ADD(dropped_frames_no_route);
676 MESHSTATS_ADD(dropped_frames_congestion);
677#undef MESHSTATS_ADD
678}
679
680static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
681{
682 struct dentry *dir = debugfs_create_dir("mesh_config",
683 sdata->vif.debugfs_dir);
684
685#define MESHPARAMS_ADD(name) \
686 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
687
688 MESHPARAMS_ADD(dot11MeshMaxRetries);
689 MESHPARAMS_ADD(dot11MeshRetryTimeout);
690 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
691 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
692 MESHPARAMS_ADD(dot11MeshTTL);
693 MESHPARAMS_ADD(element_ttl);
694 MESHPARAMS_ADD(auto_open_plinks);
695 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
696 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
697 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
698 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
699 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
700 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
701 MESHPARAMS_ADD(path_refresh_time);
702 MESHPARAMS_ADD(min_discovery_timeout);
703 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
704 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
705 MESHPARAMS_ADD(dot11MeshForwarding);
706 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
707 MESHPARAMS_ADD(rssi_threshold);
708 MESHPARAMS_ADD(ht_opmode);
709 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
710 MESHPARAMS_ADD(dot11MeshHWMProotInterval);
711 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
712 MESHPARAMS_ADD(power_mode);
713 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
714#undef MESHPARAMS_ADD
715}
716#endif
717
718static void add_files(struct ieee80211_sub_if_data *sdata)
719{
720 if (!sdata->vif.debugfs_dir)
721 return;
722
723 DEBUGFS_ADD(flags);
724 DEBUGFS_ADD(state);
725 DEBUGFS_ADD(txpower);
726 DEBUGFS_ADD(user_power_level);
727 DEBUGFS_ADD(ap_power_level);
728
729 if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
730 add_common_files(sdata);
731
732 switch (sdata->vif.type) {
733 case NL80211_IFTYPE_MESH_POINT:
734#ifdef CONFIG_MAC80211_MESH
735 add_mesh_files(sdata);
736 add_mesh_stats(sdata);
737 add_mesh_config(sdata);
738#endif
739 break;
740 case NL80211_IFTYPE_STATION:
741 add_sta_files(sdata);
742 break;
743 case NL80211_IFTYPE_ADHOC:
744 add_ibss_files(sdata);
745 break;
746 case NL80211_IFTYPE_AP:
747 add_ap_files(sdata);
748 break;
749 case NL80211_IFTYPE_WDS:
750 add_wds_files(sdata);
751 break;
752 default:
753 break;
754 }
755}
756
757void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
758{
759 char buf[10+IFNAMSIZ];
760
761 sprintf(buf, "netdev:%s", sdata->name);
762 sdata->vif.debugfs_dir = debugfs_create_dir(buf,
763 sdata->local->hw.wiphy->debugfsdir);
764 if (sdata->vif.debugfs_dir)
765 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
766 sdata->vif.debugfs_dir);
767 add_files(sdata);
768}
769
770void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
771{
772 if (!sdata->vif.debugfs_dir)
773 return;
774
775 debugfs_remove_recursive(sdata->vif.debugfs_dir);
776 sdata->vif.debugfs_dir = NULL;
777 sdata->debugfs.subdir_stations = NULL;
778}
779
780void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
781{
782 struct dentry *dir;
783 char buf[10 + IFNAMSIZ];
784
785 dir = sdata->vif.debugfs_dir;
786
787 if (!dir)
788 return;
789
790 sprintf(buf, "netdev:%s", sdata->name);
791 if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
792 sdata_err(sdata,
793 "debugfs: failed to rename debugfs dir to %s\n",
794 buf);
795}