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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 rtnl_lock();
61 ret = (*write)(sdata, buf, count);
62 rtnl_unlock();
63
64 return ret;
65}
66
67#define IEEE80211_IF_FMT(name, field, format_string) \
68static ssize_t ieee80211_if_fmt_##name( \
69 const struct ieee80211_sub_if_data *sdata, char *buf, \
70 int buflen) \
71{ \
72 return scnprintf(buf, buflen, format_string, sdata->field); \
73}
74#define IEEE80211_IF_FMT_DEC(name, field) \
75 IEEE80211_IF_FMT(name, field, "%d\n")
76#define IEEE80211_IF_FMT_HEX(name, field) \
77 IEEE80211_IF_FMT(name, field, "%#x\n")
78#define IEEE80211_IF_FMT_LHEX(name, field) \
79 IEEE80211_IF_FMT(name, field, "%#lx\n")
80#define IEEE80211_IF_FMT_SIZE(name, field) \
81 IEEE80211_IF_FMT(name, field, "%zd\n")
82
83#define IEEE80211_IF_FMT_HEXARRAY(name, field) \
84static ssize_t ieee80211_if_fmt_##name( \
85 const struct ieee80211_sub_if_data *sdata, \
86 char *buf, int buflen) \
87{ \
88 char *p = buf; \
89 int i; \
90 for (i = 0; i < sizeof(sdata->field); i++) { \
91 p += scnprintf(p, buflen + buf - p, "%.2x ", \
92 sdata->field[i]); \
93 } \
94 p += scnprintf(p, buflen + buf - p, "\n"); \
95 return p - buf; \
96}
97
98#define IEEE80211_IF_FMT_ATOMIC(name, field) \
99static ssize_t ieee80211_if_fmt_##name( \
100 const struct ieee80211_sub_if_data *sdata, \
101 char *buf, int buflen) \
102{ \
103 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
104}
105
106#define IEEE80211_IF_FMT_MAC(name, field) \
107static ssize_t ieee80211_if_fmt_##name( \
108 const struct ieee80211_sub_if_data *sdata, char *buf, \
109 int buflen) \
110{ \
111 return scnprintf(buf, buflen, "%pM\n", sdata->field); \
112}
113
114#define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \
115static ssize_t ieee80211_if_fmt_##name( \
116 const struct ieee80211_sub_if_data *sdata, \
117 char *buf, int buflen) \
118{ \
119 return scnprintf(buf, buflen, "%d\n", \
120 jiffies_to_msecs(sdata->field)); \
121}
122
123#define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
124static const struct file_operations name##_ops = { \
125 .read = (_read), \
126 .write = (_write), \
127 .open = simple_open, \
128 .llseek = generic_file_llseek, \
129}
130
131#define _IEEE80211_IF_FILE_R_FN(name) \
132static ssize_t ieee80211_if_read_##name(struct file *file, \
133 char __user *userbuf, \
134 size_t count, loff_t *ppos) \
135{ \
136 return ieee80211_if_read(file->private_data, \
137 userbuf, count, ppos, \
138 ieee80211_if_fmt_##name); \
139}
140
141#define _IEEE80211_IF_FILE_W_FN(name) \
142static ssize_t ieee80211_if_write_##name(struct file *file, \
143 const char __user *userbuf, \
144 size_t count, loff_t *ppos) \
145{ \
146 return ieee80211_if_write(file->private_data, userbuf, count, \
147 ppos, ieee80211_if_parse_##name); \
148}
149
150#define IEEE80211_IF_FILE_R(name) \
151 _IEEE80211_IF_FILE_R_FN(name) \
152 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
153
154#define IEEE80211_IF_FILE_W(name) \
155 _IEEE80211_IF_FILE_W_FN(name) \
156 _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
157
158#define IEEE80211_IF_FILE_RW(name) \
159 _IEEE80211_IF_FILE_R_FN(name) \
160 _IEEE80211_IF_FILE_W_FN(name) \
161 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \
162 ieee80211_if_write_##name)
163
164#define IEEE80211_IF_FILE(name, field, format) \
165 IEEE80211_IF_FMT_##format(name, field) \
166 IEEE80211_IF_FILE_R(name)
167
168/* common attributes */
169IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
170 HEX);
171IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
172 HEX);
173IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
174 rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
175IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
176 rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
177
178static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
179 const struct ieee80211_sub_if_data *sdata,
180 char *buf, int buflen)
181{
182 int i, len = 0;
183 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
184
185 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
186 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
187 len += scnprintf(buf + len, buflen - len, "\n");
188
189 return len;
190}
191
192IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
193
194static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
195 const struct ieee80211_sub_if_data *sdata,
196 char *buf, int buflen)
197{
198 int i, len = 0;
199 const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
200
201 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
202 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
203 len += scnprintf(buf + len, buflen - len, "\n");
204
205 return len;
206}
207
208IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
209
210IEEE80211_IF_FILE(flags, flags, HEX);
211IEEE80211_IF_FILE(state, state, LHEX);
212IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
213IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
214IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
215
216static ssize_t
217ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
218 char *buf, int buflen)
219{
220 int len;
221
222 len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
223 sdata->vif.hw_queue[IEEE80211_AC_VO],
224 sdata->vif.hw_queue[IEEE80211_AC_VI],
225 sdata->vif.hw_queue[IEEE80211_AC_BE],
226 sdata->vif.hw_queue[IEEE80211_AC_BK]);
227
228 if (sdata->vif.type == NL80211_IFTYPE_AP)
229 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
230 sdata->vif.cab_queue);
231
232 return len;
233}
234IEEE80211_IF_FILE_R(hw_queues);
235
236/* STA attributes */
237IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
238IEEE80211_IF_FILE(aid, vif.bss_conf.aid, DEC);
239IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
240
241static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
242 enum ieee80211_smps_mode smps_mode)
243{
244 struct ieee80211_local *local = sdata->local;
245 int err;
246
247 if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
248 smps_mode == IEEE80211_SMPS_STATIC)
249 return -EINVAL;
250
251 /* auto should be dynamic if in PS mode */
252 if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
253 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
254 smps_mode == IEEE80211_SMPS_AUTOMATIC))
255 return -EINVAL;
256
257 if (sdata->vif.type != NL80211_IFTYPE_STATION)
258 return -EOPNOTSUPP;
259
260 sdata_lock(sdata);
261 err = __ieee80211_request_smps_mgd(sdata, smps_mode);
262 sdata_unlock(sdata);
263
264 return err;
265}
266
267static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
268 [IEEE80211_SMPS_AUTOMATIC] = "auto",
269 [IEEE80211_SMPS_OFF] = "off",
270 [IEEE80211_SMPS_STATIC] = "static",
271 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
272};
273
274static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
275 char *buf, int buflen)
276{
277 if (sdata->vif.type == NL80211_IFTYPE_STATION)
278 return snprintf(buf, buflen, "request: %s\nused: %s\n",
279 smps_modes[sdata->u.mgd.req_smps],
280 smps_modes[sdata->smps_mode]);
281 return -EINVAL;
282}
283
284static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
285 const char *buf, int buflen)
286{
287 enum ieee80211_smps_mode mode;
288
289 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
290 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
291 int err = ieee80211_set_smps(sdata, mode);
292 if (!err)
293 return buflen;
294 return err;
295 }
296 }
297
298 return -EINVAL;
299}
300IEEE80211_IF_FILE_RW(smps);
301
302static ssize_t ieee80211_if_parse_tkip_mic_test(
303 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
304{
305 struct ieee80211_local *local = sdata->local;
306 u8 addr[ETH_ALEN];
307 struct sk_buff *skb;
308 struct ieee80211_hdr *hdr;
309 __le16 fc;
310
311 if (!mac_pton(buf, addr))
312 return -EINVAL;
313
314 if (!ieee80211_sdata_running(sdata))
315 return -ENOTCONN;
316
317 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
318 if (!skb)
319 return -ENOMEM;
320 skb_reserve(skb, local->hw.extra_tx_headroom);
321
322 hdr = skb_put_zero(skb, 24);
323 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
324
325 switch (sdata->vif.type) {
326 case NL80211_IFTYPE_AP:
327 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
328 /* DA BSSID SA */
329 memcpy(hdr->addr1, addr, ETH_ALEN);
330 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
331 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
332 break;
333 case NL80211_IFTYPE_STATION:
334 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
335 /* BSSID SA DA */
336 sdata_lock(sdata);
337 if (!sdata->u.mgd.associated) {
338 sdata_unlock(sdata);
339 dev_kfree_skb(skb);
340 return -ENOTCONN;
341 }
342 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
343 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
344 memcpy(hdr->addr3, addr, ETH_ALEN);
345 sdata_unlock(sdata);
346 break;
347 default:
348 dev_kfree_skb(skb);
349 return -EOPNOTSUPP;
350 }
351 hdr->frame_control = fc;
352
353 /*
354 * Add some length to the test frame to make it look bit more valid.
355 * The exact contents does not matter since the recipient is required
356 * to drop this because of the Michael MIC failure.
357 */
358 skb_put_zero(skb, 50);
359
360 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
361
362 ieee80211_tx_skb(sdata, skb);
363
364 return buflen;
365}
366IEEE80211_IF_FILE_W(tkip_mic_test);
367
368static ssize_t ieee80211_if_parse_beacon_loss(
369 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
370{
371 if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
372 return -ENOTCONN;
373
374 ieee80211_beacon_loss(&sdata->vif);
375
376 return buflen;
377}
378IEEE80211_IF_FILE_W(beacon_loss);
379
380static ssize_t ieee80211_if_fmt_uapsd_queues(
381 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
382{
383 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
384
385 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
386}
387
388static ssize_t ieee80211_if_parse_uapsd_queues(
389 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
390{
391 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
392 u8 val;
393 int ret;
394
395 ret = kstrtou8(buf, 0, &val);
396 if (ret)
397 return ret;
398
399 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
400 return -ERANGE;
401
402 ifmgd->uapsd_queues = val;
403
404 return buflen;
405}
406IEEE80211_IF_FILE_RW(uapsd_queues);
407
408static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
409 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
410{
411 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
412
413 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
414}
415
416static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
417 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
418{
419 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
420 unsigned long val;
421 int ret;
422
423 ret = kstrtoul(buf, 0, &val);
424 if (ret)
425 return -EINVAL;
426
427 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
428 return -ERANGE;
429
430 ifmgd->uapsd_max_sp_len = val;
431
432 return buflen;
433}
434IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
435
436static ssize_t ieee80211_if_fmt_tdls_wider_bw(
437 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
438{
439 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
440 bool tdls_wider_bw;
441
442 tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
443 !ifmgd->tdls_wider_bw_prohibited;
444
445 return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
446}
447
448static ssize_t ieee80211_if_parse_tdls_wider_bw(
449 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
450{
451 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
452 u8 val;
453 int ret;
454
455 ret = kstrtou8(buf, 0, &val);
456 if (ret)
457 return ret;
458
459 ifmgd->tdls_wider_bw_prohibited = !val;
460 return buflen;
461}
462IEEE80211_IF_FILE_RW(tdls_wider_bw);
463
464/* AP attributes */
465IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
466IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
467IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
468IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
469
470static ssize_t ieee80211_if_fmt_num_buffered_multicast(
471 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
472{
473 return scnprintf(buf, buflen, "%u\n",
474 skb_queue_len(&sdata->u.ap.ps.bc_buf));
475}
476IEEE80211_IF_FILE_R(num_buffered_multicast);
477
478static ssize_t ieee80211_if_fmt_aqm(
479 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
480{
481 struct ieee80211_local *local = sdata->local;
482 struct txq_info *txqi;
483 int len;
484
485 if (!sdata->vif.txq)
486 return 0;
487
488 txqi = to_txq_info(sdata->vif.txq);
489
490 spin_lock_bh(&local->fq.lock);
491 rcu_read_lock();
492
493 len = scnprintf(buf,
494 buflen,
495 "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
496 "%u %u %u %u %u %u %u %u %u %u\n",
497 txqi->txq.ac,
498 txqi->tin.backlog_bytes,
499 txqi->tin.backlog_packets,
500 txqi->tin.flows,
501 txqi->cstats.drop_count,
502 txqi->cstats.ecn_mark,
503 txqi->tin.overlimit,
504 txqi->tin.collisions,
505 txqi->tin.tx_bytes,
506 txqi->tin.tx_packets);
507
508 rcu_read_unlock();
509 spin_unlock_bh(&local->fq.lock);
510
511 return len;
512}
513IEEE80211_IF_FILE_R(aqm);
514
515static ssize_t ieee80211_if_fmt_airtime(
516 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
517{
518 struct ieee80211_local *local = sdata->local;
519 struct ieee80211_txq *txq = sdata->vif.txq;
520 struct airtime_info *air_info;
521 int len;
522
523 if (!txq)
524 return 0;
525
526 spin_lock_bh(&local->airtime[txq->ac].lock);
527 air_info = to_airtime_info(txq);
528 len = scnprintf(buf,
529 buflen,
530 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
531 "Virt-T: %lld us\n",
532 air_info->rx_airtime,
533 air_info->tx_airtime,
534 air_info->weight,
535 air_info->v_t);
536 spin_unlock_bh(&local->airtime[txq->ac].lock);
537
538 return len;
539}
540
541IEEE80211_IF_FILE_R(airtime);
542
543IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
544
545/* IBSS attributes */
546static ssize_t ieee80211_if_fmt_tsf(
547 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
548{
549 struct ieee80211_local *local = sdata->local;
550 u64 tsf;
551
552 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
553
554 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
555}
556
557static ssize_t ieee80211_if_parse_tsf(
558 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
559{
560 struct ieee80211_local *local = sdata->local;
561 unsigned long long tsf;
562 int ret;
563 int tsf_is_delta = 0;
564
565 if (strncmp(buf, "reset", 5) == 0) {
566 if (local->ops->reset_tsf) {
567 drv_reset_tsf(local, sdata);
568 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
569 }
570 } else {
571 if (buflen > 10 && buf[1] == '=') {
572 if (buf[0] == '+')
573 tsf_is_delta = 1;
574 else if (buf[0] == '-')
575 tsf_is_delta = -1;
576 else
577 return -EINVAL;
578 buf += 2;
579 }
580 ret = kstrtoull(buf, 10, &tsf);
581 if (ret < 0)
582 return ret;
583 if (tsf_is_delta && local->ops->offset_tsf) {
584 drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
585 wiphy_info(local->hw.wiphy,
586 "debugfs offset TSF by %018lld\n",
587 tsf_is_delta * tsf);
588 } else if (local->ops->set_tsf) {
589 if (tsf_is_delta)
590 tsf = drv_get_tsf(local, sdata) +
591 tsf_is_delta * tsf;
592 drv_set_tsf(local, sdata, tsf);
593 wiphy_info(local->hw.wiphy,
594 "debugfs set TSF to %#018llx\n", tsf);
595 }
596 }
597
598 ieee80211_recalc_dtim(local, sdata);
599 return buflen;
600}
601IEEE80211_IF_FILE_RW(tsf);
602
603
604#ifdef CONFIG_MAC80211_MESH
605IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
606
607/* Mesh stats attributes */
608IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
609IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
610IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
611IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
612IEEE80211_IF_FILE(dropped_frames_congestion,
613 u.mesh.mshstats.dropped_frames_congestion, DEC);
614IEEE80211_IF_FILE(dropped_frames_no_route,
615 u.mesh.mshstats.dropped_frames_no_route, DEC);
616
617/* Mesh parameters */
618IEEE80211_IF_FILE(dot11MeshMaxRetries,
619 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
620IEEE80211_IF_FILE(dot11MeshRetryTimeout,
621 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
622IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
623 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
624IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
625 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
626IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
627IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
628IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
629IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
630 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
631IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
632 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
633IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
634 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
635IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
636 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
637IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
638 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
639IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
640 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
641IEEE80211_IF_FILE(path_refresh_time,
642 u.mesh.mshcfg.path_refresh_time, DEC);
643IEEE80211_IF_FILE(min_discovery_timeout,
644 u.mesh.mshcfg.min_discovery_timeout, DEC);
645IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
646 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
647IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
648 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
649IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
650 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
651IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
652IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
653IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
654IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
655 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
656IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
657 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
658IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
659 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
660IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
661IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
662 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
663IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
664 u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
665IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
666IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
667 u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
668#endif
669
670#define DEBUGFS_ADD_MODE(name, mode) \
671 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
672 sdata, &name##_ops)
673
674#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
675
676static void add_common_files(struct ieee80211_sub_if_data *sdata)
677{
678 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
679 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
680 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
681 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
682 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
683 DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
684 DEBUGFS_ADD(hw_queues);
685
686 if (sdata->local->ops->wake_tx_queue &&
687 sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
688 sdata->vif.type != NL80211_IFTYPE_NAN) {
689 DEBUGFS_ADD(aqm);
690 DEBUGFS_ADD(airtime);
691 }
692}
693
694static void add_sta_files(struct ieee80211_sub_if_data *sdata)
695{
696 DEBUGFS_ADD(bssid);
697 DEBUGFS_ADD(aid);
698 DEBUGFS_ADD(beacon_timeout);
699 DEBUGFS_ADD_MODE(smps, 0600);
700 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
701 DEBUGFS_ADD_MODE(beacon_loss, 0200);
702 DEBUGFS_ADD_MODE(uapsd_queues, 0600);
703 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
704 DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
705}
706
707static void add_ap_files(struct ieee80211_sub_if_data *sdata)
708{
709 DEBUGFS_ADD(num_mcast_sta);
710 DEBUGFS_ADD_MODE(smps, 0600);
711 DEBUGFS_ADD(num_sta_ps);
712 DEBUGFS_ADD(dtim_count);
713 DEBUGFS_ADD(num_buffered_multicast);
714 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
715 DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
716}
717
718static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
719{
720 /* add num_mcast_sta_vlan using name num_mcast_sta */
721 debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
722 sdata, &num_mcast_sta_vlan_ops);
723}
724
725static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
726{
727 DEBUGFS_ADD_MODE(tsf, 0600);
728}
729
730#ifdef CONFIG_MAC80211_MESH
731
732static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
733{
734 DEBUGFS_ADD_MODE(tsf, 0600);
735 DEBUGFS_ADD_MODE(estab_plinks, 0400);
736}
737
738static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
739{
740 struct dentry *dir = debugfs_create_dir("mesh_stats",
741 sdata->vif.debugfs_dir);
742#define MESHSTATS_ADD(name)\
743 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops)
744
745 MESHSTATS_ADD(fwded_mcast);
746 MESHSTATS_ADD(fwded_unicast);
747 MESHSTATS_ADD(fwded_frames);
748 MESHSTATS_ADD(dropped_frames_ttl);
749 MESHSTATS_ADD(dropped_frames_no_route);
750 MESHSTATS_ADD(dropped_frames_congestion);
751#undef MESHSTATS_ADD
752}
753
754static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
755{
756 struct dentry *dir = debugfs_create_dir("mesh_config",
757 sdata->vif.debugfs_dir);
758
759#define MESHPARAMS_ADD(name) \
760 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops)
761
762 MESHPARAMS_ADD(dot11MeshMaxRetries);
763 MESHPARAMS_ADD(dot11MeshRetryTimeout);
764 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
765 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
766 MESHPARAMS_ADD(dot11MeshTTL);
767 MESHPARAMS_ADD(element_ttl);
768 MESHPARAMS_ADD(auto_open_plinks);
769 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
770 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
771 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
772 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
773 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
774 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
775 MESHPARAMS_ADD(path_refresh_time);
776 MESHPARAMS_ADD(min_discovery_timeout);
777 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
778 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
779 MESHPARAMS_ADD(dot11MeshForwarding);
780 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
781 MESHPARAMS_ADD(rssi_threshold);
782 MESHPARAMS_ADD(ht_opmode);
783 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
784 MESHPARAMS_ADD(dot11MeshHWMProotInterval);
785 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
786 MESHPARAMS_ADD(power_mode);
787 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
788 MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
789 MESHPARAMS_ADD(dot11MeshNolearn);
790 MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
791#undef MESHPARAMS_ADD
792}
793#endif
794
795static void add_files(struct ieee80211_sub_if_data *sdata)
796{
797 if (!sdata->vif.debugfs_dir)
798 return;
799
800 DEBUGFS_ADD(flags);
801 DEBUGFS_ADD(state);
802 DEBUGFS_ADD(txpower);
803 DEBUGFS_ADD(user_power_level);
804 DEBUGFS_ADD(ap_power_level);
805
806 if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
807 add_common_files(sdata);
808
809 switch (sdata->vif.type) {
810 case NL80211_IFTYPE_MESH_POINT:
811#ifdef CONFIG_MAC80211_MESH
812 add_mesh_files(sdata);
813 add_mesh_stats(sdata);
814 add_mesh_config(sdata);
815#endif
816 break;
817 case NL80211_IFTYPE_STATION:
818 add_sta_files(sdata);
819 break;
820 case NL80211_IFTYPE_ADHOC:
821 add_ibss_files(sdata);
822 break;
823 case NL80211_IFTYPE_AP:
824 add_ap_files(sdata);
825 break;
826 case NL80211_IFTYPE_AP_VLAN:
827 add_vlan_files(sdata);
828 break;
829 default:
830 break;
831 }
832}
833
834void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
835{
836 char buf[10+IFNAMSIZ];
837
838 sprintf(buf, "netdev:%s", sdata->name);
839 sdata->vif.debugfs_dir = debugfs_create_dir(buf,
840 sdata->local->hw.wiphy->debugfsdir);
841 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
842 sdata->vif.debugfs_dir);
843 add_files(sdata);
844}
845
846void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
847{
848 if (!sdata->vif.debugfs_dir)
849 return;
850
851 debugfs_remove_recursive(sdata->vif.debugfs_dir);
852 sdata->vif.debugfs_dir = NULL;
853 sdata->debugfs.subdir_stations = NULL;
854}
855
856void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
857{
858 struct dentry *dir;
859 char buf[10 + IFNAMSIZ];
860
861 dir = sdata->vif.debugfs_dir;
862
863 if (IS_ERR_OR_NULL(dir))
864 return;
865
866 sprintf(buf, "netdev:%s", sdata->name);
867 debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
868}
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}